JP5438157B2 - Opening / closing tool - Google Patents

Opening / closing tool Download PDF

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JP5438157B2
JP5438157B2 JP2012062248A JP2012062248A JP5438157B2 JP 5438157 B2 JP5438157 B2 JP 5438157B2 JP 2012062248 A JP2012062248 A JP 2012062248A JP 2012062248 A JP2012062248 A JP 2012062248A JP 5438157 B2 JP5438157 B2 JP 5438157B2
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opening
closing operation
closing
contact
force
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JP2013193160A (en
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正實 梨本
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Nashimoto Industries Co Ltd
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Nashimoto Industries Co Ltd
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Description

本発明は、開閉操作部に加えた閉力を開閉作業部に伝達してこの開閉作業部で対象物を挟持したり切断したりする開閉作業具に関するものである。   The present invention relates to an opening / closing operation tool for transmitting a closing force applied to an opening / closing operation unit to the opening / closing operation unit to clamp or cut an object by the opening / closing operation unit.

従来のペンチやニッパーなどの開閉作業具は、例えば、作業者が開閉操作部を握持する握持力をてこの原理を用いて大きな挟持力や切断力に変えて開閉作業部に伝達して対象物を挟持したり切断したりするものであった。   Conventional open / close work tools such as pliers and nippers, for example, use the principle to change the gripping force for the operator to grip the open / close operation part into a large clamping force or cutting force and transmit it to the open / close work part. The object was clamped or cut.

そのため、作業者が開閉操作部に加える閉力を、できるだけ開閉作業具の先端部の開閉作動する開閉作業部に効率よく伝達できるように開閉作業具全体の剛性を高めたものが一般的であった。   For this reason, the rigidity of the entire opening / closing tool is generally increased so that the closing force applied by the operator to the opening / closing operation unit can be transmitted as efficiently as possible to the opening / closing operation unit that opens and closes the tip of the opening / closing tool. It was.

しかしながら、高い剛性の確保を主体とした開閉作業具では、開閉操作部に加える閉力がダイレクトで開閉作業部に伝わるため、開閉作業部に必要以上の力が加わり易く、例えば、潰れ易いもの、壊れ易いもの、或いは表面にキズが付き易いものなどデリケートな構造の対象物を挟持する場合には、開閉操作部に加える閉力を、少しでも加減を誤って必要以上に加えてしまうことで、開閉作業部に必要以上の挟持力が作用し対象物を押し潰して破損させたり表面にキズを付けてしまったりするという恐れがある。   However, in the opening and closing work tool mainly for ensuring high rigidity, the closing force applied to the opening and closing operation part is directly transmitted to the opening and closing work part, so that an excessive force is easily applied to the opening and closing work part, for example, those that are easily crushed, When sandwiching objects with delicate structures such as those that are easily broken or those that are easily scratched on the surface, the closing force applied to the opening and closing operation part may be added to the opening / closing operation part by mistake. There is a risk that an unnecessary clamping force acts on the opening / closing operation part, and the object is crushed and damaged, or the surface is scratched.

そのため、上記のようなデリケートな対象物を潰したり、破損させたり、キズを付けたりしないように挟持するには、作業者は手先や指先に神経を集中させて開閉操作部に微妙な力加減で閉力を加える繊細且つ微細な操作を余儀なくされ、そのための開閉操作部の微妙な力加減を調整しながらの操作は非常に難しいものであると共に、作業効率を大きく低下させる要因となっていた。   For this reason, in order to hold the delicate object as described above without crushing, damaging, or scratching it, the operator concentrates the nerve on the fingertip or fingertip and applies delicate force to the opening / closing operation part. Therefore, the delicate and fine operation to apply the closing force is forced, and the operation while adjusting the delicate force of the opening and closing operation part is very difficult, and it has become a factor that greatly reduces the work efficiency. .

本発明は、上述のような問題点を解決し、挟持操作によって潰したくない、壊したくない、或いは表面にキズを付けたくないといったデリケートな構造の対象物を挟持したり切断する際に、作業者が開閉操作部に加える閉力を微妙な力加減で調整しながら慎重に操作することなく、例えば、開閉操作部を単に握持操作若しくは指先で摘まみ操作するといった極めて簡易な操作で対象物を潰したり、破損させたり、或いはキズを付けたりすることなく容易にデリケートな挟持物や切断物を挟持したり切断したりすることができる画期的な開閉作業具を提供することを目的としている。   The present invention solves the above-mentioned problems, and when clamping or cutting an object having a delicate structure that does not want to be crushed by a clamping operation, does not want to be broken, or does not want to scratch the surface, For example, the user can adjust the closing force applied to the opening / closing operation part by adjusting the subtle force carefully, for example, by simply holding the opening / closing operation part or picking it with the fingertip. To provide an epoch-making opening / closing tool that can easily pinch or cut delicate sandwiches and cuts without crushing, damaging, or scratching Yes.

添付図面を参照して本発明の要旨を説明する。   The gist of the present invention will be described with reference to the accompanying drawings.

第一半体1と第二半体2とを交差枢着して、この対向する第一半体1と第二半体2との先端部を挟持部若しくは切断部とする開閉作業部4とし、前記対向する第一半体1と第二半体2との基端部を開閉操作部5として、この開閉操作部5に閉じ方向となる内方に押圧する閉力を加えることで前記開閉作業部4が閉動して対象物3を挟持する若しくは切断する開閉作業具において、前記開閉操作部5に閉力を加えて前記開閉作業部4を閉動させ前記対象物3を挟持若しくは切断する際、前記対象物3を挟持した状態で前記開閉操作部5に加える閉力を増大させるに従い前記開閉操作部5が内方に撓み可動するように構成し、この開閉操作部5が内方に撓み可動することによって当接する当接部7と受部6とを備えると共に、前記対象物3を挟持した際の前記当接部7と前記受部6との離間間隔を広狭自在に調整する、若しくは、前記対象物3を挟持した際の前記当接部7と前記受部6との離間間隔が一定の離間間隔となるようにする間隔調整機構15を備えた構成とし、この間隔調整機構15によって所望の離間間隔に調整した前記当接部7と前記受部6とが当接した状態で前記開閉操作部5に加える閉力を増大させてゆくと、この開閉操作部5は更に内方に可動若しくは撓み可動することで閉動操作可能であるが、この開閉操作部5に加えた閉力を挟持力若しくは切断力として前記開閉作業部4に伝達する伝達比は、前記当接部6と受部7との当接前の伝達比に比して減じるように構成したことを特徴とする開閉作業具に係るものである。   The first half 1 and the second half 2 are pivotally attached to each other, and an opening / closing operation portion 4 having the tip portions of the opposing first half 1 and second half 2 as a sandwiching portion or a cutting portion is provided. The opening / closing operation portion 5 is a base end portion of the first half 1 and the second half 2 facing each other, and the opening / closing operation is performed by applying a closing force to the opening / closing operation portion 5 inward in the closing direction. In an opening / closing work tool that closes or cuts the object 3 by closing the work unit 4, a closing force is applied to the opening / closing operation unit 5 to close the opening / closing work unit 4 and pinch or cut the object 3. When the object 3 is sandwiched, the opening / closing operation unit 5 is configured to bend and move inward as the closing force applied to the opening / closing operation unit 5 is increased. A contact portion 7 and a receiving portion 6 that come into contact with each other by bending and moving, and sandwich the object 3 The spacing between the contact portion 7 and the receiving portion 6 when adjusted is adjusted to be wide or narrow, or the spacing distance between the contact portion 7 and the receiving portion 6 when the object 3 is sandwiched. The distance adjusting mechanism 15 is configured to have a constant separation interval, and the contact portion 7 and the receiving portion 6 adjusted to a desired separation interval by the interval adjustment mechanism 15 are in contact with each other. When the closing force applied to the opening / closing operation unit 5 is increased, the opening / closing operation unit 5 can be further closed or moved by moving inwardly or flexibly. However, the closing force applied to the opening / closing operation unit 5 is not limited. The transmission ratio transmitted to the opening / closing operation unit 4 as a clamping force or cutting force is configured to be reduced as compared with the transmission ratio before the contact between the contact portion 6 and the receiving portion 7. The present invention relates to an opening / closing tool.

また、前記当接部7を前記第一半体1の基端部と前記第二半体2の基端部とのいずれか一方若しくは双方に設け、この当接部7と当接する前記受部6を前記第一半体1の基端部と前記第二半体2の基端部との間に配設した前記間隔調整機構15に設け、前記受部6は、前記間隔調整機構15に可動自在に設けると共に、この受部6を可動させることで前記当接部7と前記受部6との離間間隔を広狭自在に調整し得る形状に構成したことを特徴とする請求項1記載の開閉作業具に係るものである。   The contact portion 7 is provided on one or both of the proximal end portion of the first half 1 and the proximal end portion of the second half 2, and the receiving portion is in contact with the contact portion 7. 6 is provided in the interval adjusting mechanism 15 disposed between the proximal end portion of the first half 1 and the proximal end portion of the second half 2, and the receiving portion 6 is connected to the interval adjusting mechanism 15. 2. The device according to claim 1, wherein the space is provided so as to be movable, and the receiving portion 6 is moved so that a distance between the contact portion 7 and the receiving portion 6 can be adjusted in a wide and narrow manner. The present invention relates to an opening / closing tool.

また、前記当接部7を前記第一半体1の基端部に設け、前記受部6を前記第二半体2の基端部に設け、前記第二半体2に前記間隔調整機構15を設けて、この間隔調整機構15によって前記受部6が可動して前記当接部7と前記受部6との離間間隔を広狭自在に調整し得る構成としたことを特徴とする請求項1記載の開閉作業具に係るものである。   Further, the contact portion 7 is provided at the proximal end portion of the first half 1, the receiving portion 6 is provided at the proximal end portion of the second half 2, and the spacing adjustment mechanism is provided on the second half 2. 15. A structure is provided in which the receiving portion 6 is movable by the interval adjusting mechanism 15 so that a spacing interval between the contact portion 7 and the receiving portion 6 can be adjusted in a wide and narrow manner. 1. The opening / closing work tool according to 1.

また、前記当接部7を前記第一半体1の基端部に設け、前記受部6を前記第二半体2の基端部に設け、前記当接部7と前記受部6との一方を、内方に長さを有する形状に形成すると共に、前記開閉作業部4で挟持する対象物3の大きさによって前記受部6が当接する位置が変動するが前記開閉作業部4で前記対象物3を挟持した状態の前記当接部7と前記受部6との離間間隔は変動しない形状に構成して前記間隔調整機構15を構成したことを特徴とする請求項1記載の開閉作業具に係るものである。   The contact portion 7 is provided at the proximal end portion of the first half 1, the receiving portion 6 is provided at the proximal end portion of the second half 2, and the contact portion 7 and the receiving portion 6 Is formed in a shape having a length inward, and the position where the receiving portion 6 abuts varies depending on the size of the object 3 sandwiched by the opening / closing operation portion 4. 2. The opening / closing mechanism according to claim 1, wherein the distance adjusting mechanism is configured so that a distance between the contact portion and the receiving portion in a state where the object is sandwiched is not changed. It concerns work tools.

また、前記対象物3を挟持した状態で前記開閉操作部5に加える閉力を増大させた際に前記開閉操作部5を内方に撓み可動させる撓み可動因部8と、この開閉操作部5の内方への撓み可動に伴って内方へ移動する前記当接部7とこの当接部7が当接する受部6とを備えると共にこの当接部7と受部6との当接点10が前記開閉操作部5を構成する前記第一半体1の基端部と前記第二半体2の基端部の少なくとも一方の閉動時の動作支点となるように構成した力伝達比変動機構12を具備し、前記当接部7が前記受部6に当接した状態で閉力を増大させてゆくと、前記開閉操作部5を構成する前記第一半体1の基端部と前記第二半体2の基端部との少なくとも一方の動作支点が前記第一半体1と前記第二半体2の交差枢着部9から前記当接点10に変動し、この動作支点の変動により前記増大させた閉力を挟持力若しくは切断力として前記開閉作業部4に伝達する伝達比が変化するように構成したことを特徴とする請求項1〜4のいずれか1項に記載の開閉作業具に係るものである。   In addition, when the closing force applied to the opening / closing operation unit 5 is increased in a state where the object 3 is sandwiched, the bending operation factor unit 8 which causes the opening / closing operation unit 5 to bend and move inward, and the opening / closing operation unit 5. The abutting portion 7 moves inward as the inner portion of the abutting portion moves and a receiving portion 6 with which the abutting portion 7 abuts, and a contact point 10 between the abutting portion 7 and the receiving portion 6 is provided. The force transmission ratio variation is configured such that at least one of the proximal end portion of the first half body 1 and the proximal end portion of the second half body 2 constituting the opening / closing operation portion 5 is an operating fulcrum during closing. When the closing force is increased in a state where the mechanism 12 is provided and the contact portion 7 is in contact with the receiving portion 6, the base end portion of the first half 1 constituting the opening / closing operation portion 5 At least one operating fulcrum with the base end portion of the second half 2 is changed from the intersection 9 of the first half 1 and the second half 2 to the contact point 10. 5. The transmission ratio for transmitting the increased closing force to the opening / closing work unit 4 as a clamping force or a cutting force due to the fluctuation of the operation fulcrum is changed. The opening / closing operation tool according to item 1 is concerned.

また、前記開閉操作部5に撓み可動因部8によって撓み可動する撓み部11を設け、この撓み部11に前記当接部7を設けて、前記対象物3を前記開閉作業部4で挟持した状態で前記開閉操作部5に閉力を増大させながら加えてゆくと、前記撓み可動因部8によって前記撓み部11が内方に撓み可動して、前記当接部7が前記受部6に接近して当接するように構成したことを特徴とする請求項1〜5のいずれか1項に記載の開閉作業具に係るものである。   Further, the opening / closing operation part 5 is provided with a bending part 11 which is bent and moved by the bending movable factor part 8, and the contact part 7 is provided on the bending part 11 so that the object 3 is held by the opening / closing operation part 4. If the closing force is applied to the opening / closing operation unit 5 while increasing in the state, the bending movable factor 8 causes the bending unit 11 to bend inward and the contact unit 7 is moved to the receiving unit 6. The opening / closing work tool according to any one of claims 1 to 5, wherein the opening / closing tool is configured to approach and abut.

また、前記開閉操作部5の撓み部11が撓み可動した際に、この撓み可動の反作用によって前記開閉操作部5が開動することを防止する開閉操作部開動ロック機構34を備えたことを特徴とする請求項1〜6のいずれか1項に記載の開閉作業具に係るものである。   In addition, when the bending portion 11 of the opening / closing operation portion 5 is bent and moved, the opening / closing operation portion opening lock mechanism 34 is provided to prevent the opening / closing operation portion 5 from opening due to a reaction of the bending movement. The opening / closing work tool according to any one of claims 1 to 6.

本発明は上述のように構成したから、開閉操作部に加えた閉力が開閉作業部に挟持力若しくは切断力として伝わり難くなるので、対象物を挟持若しくは切断する際、従来の開閉作業具に比べて開閉操作部を大きな操作量で操作することができ、よって、微妙な力加減を要する操作、言い換えると、開閉作業部の挟持力若しくは切断力が急激に増大しないように開閉操作部を微少な閉動量で調整しなければならない操作を、閉動量の大きな操作で操作することができるようになり微妙な力加減を要する際の操作性が向上する。   Since the present invention is configured as described above, it is difficult for the closing force applied to the opening / closing operation unit to be transmitted to the opening / closing operation unit as a clamping force or a cutting force. Compared to operations that require a large amount of force, in other words, operations that require a delicate amount of force, in other words, the opening / closing operation unit is very small so that the clamping force or cutting force of the opening / closing operation unit does not increase suddenly. An operation that needs to be adjusted with a small amount of closing movement can be performed with an operation with a large amount of closing movement, which improves operability when a delicate force adjustment is required.

また、開閉操作部に閉力を加えていっても開閉作業部に所定値以上の挟持力や切断力が伝わらないように構成することも容易にできる構成であり、これによって、開閉操作部に閉力を加え過ぎても、開閉作業部で挟持若しくは切断している対象物に所定以上の大きな挟持力若しくは切断力が作用しないように構成することができるため、対象物を潰してしまう、壊してしまう、キズを付けてしまう、或いは、切断したくないところを切断してしまうことを防止できる極めて優れた開閉作業具となる。   In addition, even if a closing force is applied to the opening / closing operation unit, it is possible to easily configure the opening / closing operation unit so that a clamping force or cutting force exceeding a predetermined value is not transmitted to the opening / closing operation unit. Even if too much closing force is applied, it can be configured so that a large clamping force or cutting force greater than a predetermined level does not act on the object that is being clamped or cut by the opening / closing operation unit. Therefore, it becomes an extremely excellent opening / closing work tool that can prevent scratches or cuts that are not desired to be cut.

しかも、本発明は、対象物を挟持した際の当接部と受部との離間間隔を広狭自在に調整する、若しくは、対象物を挟持した際の当接部と受部との離間間隔が一定の離間間隔となるようにする間隔調整機構を備えたので、この間隔調整機構を対象物を挟持した際の当接部と受部との離間間隔を広狭自在に調整し得る構成とした場合は、開閉作業部で挟持した対象物の大きさ(厚みや径の大小)によって変動する当接部と受部との離間間隔を広狭自在に調整することができるので、開閉操作部に加えた閉力が伝わり難くなる作用が生じるまでに開閉作業部で挟持している若しくは切断している対象物に作用する挟持力若しくは切断力を自在に調整することができ、また、間隔調整機構によって対象物を挟持した際の当接部と受部との離間間隔が一定の離間間隔となるように構成した場合は、当接部と受部との離間間隔が開閉作業部で挟持する対象物の大きさに関わらず一定の離間間隔となるので、開閉操作部に加えた閉力が伝わり難くなる作用が生じるまでに開閉作業部で挟持している若しくは切断している対象物に作用する挟持力若しくは切断力を挟持若しくは切断している対象物の大きさに関わらず一定にすることができる。   In addition, according to the present invention, the separation interval between the contact portion and the receiving portion when the object is sandwiched is adjusted to be wide or narrow, or the separation interval between the contact portion and the reception portion when the object is sandwiched is adjusted. When equipped with an interval adjustment mechanism that ensures a constant separation interval, the interval adjustment mechanism can be adjusted so that the separation interval between the contact portion and the receiving portion when the object is sandwiched can be freely adjusted. The distance between the contact portion and the receiving portion that varies depending on the size (thickness or diameter) of the target object sandwiched by the opening / closing operation portion can be adjusted freely. It is possible to freely adjust the clamping force or cutting force acting on the object that is sandwiched or cut by the opening / closing work unit until the closing force is difficult to be transmitted. The spacing between the contact part and the receiving part when holding an object is the same. In this case, the distance between the contact part and the receiving part is a constant distance regardless of the size of the object sandwiched by the opening / closing operation part. Regardless of the size of the object that is holding or cutting the holding force or the cutting force that acts on the object that is being held or cut by the opening / closing work unit until an action that makes it difficult to transmit the closing force occurs Can be constant.

よって、この間隔調整機構で、開閉作業部で挟持している対象物に作用する挟持力若しくは切断力を所定の挟持力若しくは切断力になるように調整・設定することで、対象物に所定値以上の挟持力若しくは切断力が加わらず、この対象物に大きな挟持力若しくは切断力をくわえすぎることでこの対象物を潰したり、破損させたり、キズを付けたり、或いは、切断したくないところまで切断してしまうということを一層容易に防止することができる画期的な開閉作業具となる。   Therefore, by adjusting and setting the clamping force or cutting force acting on the target object sandwiched by the opening / closing operation unit with this interval adjusting mechanism so as to become the predetermined clamping force or cutting force, a predetermined value is applied to the target object. To the place where you do not want to crush, break, scratch, or cut this object by adding too much clamping force or cutting force to the object without adding the above clamping force or cutting force. This is an epoch-making opening / closing work tool that can more easily prevent cutting.

従って、本発明は、このような特性を活かして様々な用途に使用することができ、しかも、このような画期的な作用効果を発揮する構成を簡易な構成で実現することができる画期的な開閉作業具となる。   Therefore, the present invention can be used for various purposes by taking advantage of such characteristics, and it is also an epoch that can realize a configuration that exhibits such an innovative effect with a simple configuration. It becomes a typical opening and closing work tool.

即ち、本発明は、開閉作業部に対象物を挟持した状態で開閉操作部に閉力を加えてゆくことで開閉操作部が内方に撓み可動するという簡易な構成で当接部と受部とを容易に当接することができ、更にこの当接部と受部とが当接した状態で開閉操作部に閉力を加えていった際にこの開閉操作部が更に可動若しくは撓み可動するという簡易な構成で上述した開閉操作部に加えた閉力を開閉作業部に伝え難くするという画期的な作用効果を実現することができ、しかも、この画期的な作用効果を発揮するタイミングを容易に調整することができたり、或いは、自動的に一定にすることができ、これによって、開閉操作部に閉力を加え過ぎたことによって対象物を潰したり、破損させたり、キズを付けたり、余計な個所を切断したりすることを一層防止することができ、更に、この開閉操作部に閉力を加える操作を握持操作若しくは指先摘み操作することによって、第一半体の基端部が撓み可動した際の反作用(復帰弾性力)を開閉操作部を操作する手や指先で感じ取ることで作業者は開閉作業部が対象物を挟持しているということを認識でき、これによって、開閉作業部が対象物を挟持しているかどうかの不安感を抱くことなく対象物を挟持していることを確信し安心して挟持作業することができる実用性に優れた画期的な開閉作業具となる。   That is, the present invention provides a contact portion and a receiving portion with a simple configuration in which an opening / closing operation portion is bent and moved inward by applying a closing force to the opening / closing operation portion with an object sandwiched between the opening / closing operation portion. When the closing force is applied to the opening / closing operation part in a state where the contact part and the receiving part are in contact with each other, the opening / closing operation part is further movable or flexibly movable. With a simple configuration, it is possible to realize an epoch-making action effect that makes it difficult to transmit the closing force applied to the above-described opening / closing operation part to the opening / closing work part, and at the same time, the timing of demonstrating this breakthrough action effect It can be easily adjusted, or it can be made constant automatically, which can cause the object to be crushed, damaged or scratched by applying too much closing force to the opening / closing part. , And further cut off unnecessary parts Furthermore, by performing a gripping operation or a fingertip picking operation to apply a closing force to the opening / closing operation portion, a reaction (restoring elastic force) when the proximal end portion of the first half body is bent and moved is obtained. By sensing with the hand or fingertip that operates the opening / closing operation unit, the operator can recognize that the opening / closing operation unit is holding the object, which makes it uncertain whether the opening / closing operation unit is holding the object. It is an epoch-making opening / closing work tool excellent in practicality that can be held securely with confidence that the object is held without feeling.

また、請求項2,3,4記載の発明においては、一層容易に本発明の間隔調整機構を実現でき、一層実用性に優れた開閉作業具となるもので、特に、請求項2,3記載の発明においては、極めて容易に当接部と受部との離間間隔を広狭自在に調整することを実現でき、また、特に請求項4記載の発明においては、極めて容易に当接部と受部との離間間隔を対象物の大きさが変わっても自動的に一定にすることを実現できる実用性に優れた画期的な開閉作業具となる。   Further, in the invention described in claims 2, 3 and 4, the distance adjusting mechanism of the present invention can be realized more easily, and it becomes an opening / closing work tool having further practicality. In the present invention, it is possible to adjust the distance between the contact portion and the receiving portion very easily, and in particular, in the invention of claim 4, the contact portion and the receiving portion can be adjusted very easily. It is an epoch-making opening / closing work tool excellent in practicality that can automatically make the separation interval constant with the object even if the size of the object changes.

また、請求項5記載の発明においては、対象物を挟持した状態で開閉操作部に閉力を加えていった際に、撓み可動因部によってこの開閉操作部を内方に確実に撓み可動させることができ、この内方への撓み可動によって、開閉操作部に加える閉力を増大させ続けることができ、しかも、力伝達比変動機構により、当接部が受部に当接した状態で前記閉力を増大させた際にこの増大させた閉力を開閉操作部に伝達する伝達比を確実に変化させて、開閉作業部に作用する挟持力若しくは切断力を、開閉操作部に加えられた閉力に応じた挟持力若しくは切断力よりも減少した挟持力若しくは切断力として発揮できる極めて実用性に優れた構成の開閉作業具となる。   Further, in the invention according to claim 5, when the closing force is applied to the opening / closing operation part with the object sandwiched, the opening / closing operation part is reliably bent inward by the bending movable factor part. The closing force applied to the opening / closing operation part can be continuously increased by this inward bending movement, and the force transmission ratio variation mechanism allows the contact part to be in contact with the receiving part. When the closing force is increased, the transmission ratio for transmitting the increased closing force to the opening / closing operation unit is changed reliably, and a clamping force or a cutting force acting on the opening / closing operation unit is applied to the opening / closing operation unit. An opening / closing work tool having an extremely practical configuration that can be exhibited as a clamping force or a cutting force that is smaller than a clamping force or a cutting force according to the closing force.

また、請求項6記載の発明においては、閉力を加えた際に内方へ撓み可動する開閉操作部並びにこの開閉操作部の撓み可動により当接部が受部に当接する構成を簡易に設計実現可能となる一層実用性に優れた構成の開閉作業具となる。   In the invention according to claim 6, the opening / closing operation part which is bent and moved inward when a closing force is applied and the structure in which the contact part comes into contact with the receiving part by the bending movement of the opening / closing operation part are simply designed. An open / close working tool having a more practical configuration that can be realized.

また、請求項7記載の発明においては、開閉操作部に加えている閉力を弱めても、開閉操作部が開動せず、よって、握持操作や指先摘み操作をし続けなくても開閉操作部に一定の閉力が加えられている状態を維持することができる実用性に優れた開閉作業具となる。   Further, in the invention according to claim 7, even if the closing force applied to the opening / closing operation part is weakened, the opening / closing operation part does not open, so that the opening / closing operation can be performed without continuing the gripping operation or the fingertip picking operation. An opening / closing work tool excellent in practicality capable of maintaining a state in which a constant closing force is applied to the part.

実施例1を示す説明斜視図である。1 is an explanatory perspective view illustrating Example 1. FIG. 実施例1を示す一部を切り欠いた説明正面図である。FIG. 3 is an explanatory front view in which a part of Example 1 is cut away. 実施例1の対象物を挟持した状態を示す正面図である。It is a front view which shows the state which clamped the target object of Example 1. FIG. 図3の対象物を挟持したことによって広がった当接部と受部との離間間隔を間隔調整機構で受部の位置を調整して離間間隔を狭めた状態を示す説明正面図である。FIG. 4 is an explanatory front view showing a state in which the spacing interval between the contact portion and the receiving portion that has spread by sandwiching the object of FIG. 図4の状態から、開閉操作部に閉力を加えてゆき当接部と受部とを当接させた状態を示す説明正面図である。FIG. 5 is an explanatory front view illustrating a state where a closing force is applied to the opening / closing operation unit from the state of FIG. 4 and the contact unit and the receiving unit are brought into contact with each other. 図5よりも受部の位置を基端側にして図5の場合よりも離間間隔を広くした状態から、開閉操作部に閉力を加えてゆき当接部と受部とを当接させた状態を示す説明正面図である。From the state in which the position of the receiving part is closer to the base end than in FIG. 5 and the separation interval is wider than in FIG. 5, a closing force is applied to the opening / closing operation part to bring the contact part into contact with the receiving part. It is explanatory front view which shows a state. 実施例2を示す正面図である。6 is a front view showing Example 2. FIG. 実施例2の対象物を挟持した状態を示す正面図である。It is a front view which shows the state which clamped the target object of Example 2. FIG. 図8の対象物を挟持したことによって広がった当接部と受部との離間間隔を間隔調整機構で受部の位置を調整して離間間隔を狭めた状態を示す説明正面図である。FIG. 9 is an explanatory front view showing a state in which the spacing interval between the contact portion and the receiving portion that has spread by sandwiching the object of FIG. 8 is narrowed by adjusting the position of the receiving portion with a spacing adjusting mechanism. 図9の状態から、開閉操作部に閉力を加えてゆき当接部と受部とを当接させた状態を示す説明正面図である。FIG. 10 is an explanatory front view illustrating a state in which a closing force is applied to the opening / closing operation unit from the state of FIG. 9 and the contact unit and the receiving unit are brought into contact with each other. 図10の状態から、更に閉力を増大させて開閉操作部を内方に撓み可動させた状態を示す説明正面図である。FIG. 11 is an explanatory front view showing a state in which the closing force is further increased from the state of FIG. 実施例3を示す斜視図である。10 is a perspective view showing Example 3. FIG. 実施例3の対象物を挟持した状態を示す説明正面図である。It is explanatory front view which shows the state which clamped the target object of Example 3. FIG. 図13の状態から、開閉操作部に閉力を加えてゆき当接部と受部とを当接させた状態を示す説明正面図である。FIG. 14 is an explanatory front view showing a state in which a closing force is applied to the opening / closing operation unit from the state of FIG. 図14の状態から、更に閉力を増大させて開閉操作部を内方へ撓み可動させた状態を示す説明正面図である。FIG. 15 is an explanatory front view showing a state in which the closing force is further increased and the opening / closing operation unit is bent inward and moved from the state of FIG. 14. 実施例3の図13の場合よりも大きな対象物を挟持した状態を示す説明正面図である。FIG. 14 is an explanatory front view showing a state in which an object larger than the case of FIG. 図16の状態から、開閉操作部に閉力を加えてゆき当接部と受部とを当接させた状態を示す説明正面図である。FIG. 17 is an explanatory front view illustrating a state in which a closing force is applied to the opening / closing operation unit from the state of FIG. 実施例4を示す斜視図である。10 is a perspective view showing Example 4. FIG. 実施例4の第一半体側ラチェット歯部と第二半体側ラチェット歯部との係合状態を示す拡大説明断面図である。It is an expanded explanatory sectional view showing the engagement state of the first half side ratchet tooth part and the second half side ratchet tooth part of Example 4. 実施例4の別例を示す斜視図である。10 is a perspective view showing another example of the fourth embodiment. FIG.

好適と考える本発明の実施形態を、図面に基づいて本発明の作用を示して簡単に説明する。   An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

開閉操作部5を開動操作して挟持部若しくは切断部となる開閉作業部4を開動動作させてこの開閉作業部4、即ち対向する第一半体1と第二半体2との先端部間の間隔を広げ、この間隔を広げた先端部間に被挟持物若しくは被切断物となる対象物3を配置しこの対象物3に第一半体1、第二半体2夫々の先端部を当接させた状態にする(この時点ではまだ対象物3に挟持力若しくは切断力は加えられていない)。   The opening / closing operation unit 5 is opened to operate the opening / closing operation unit 4 serving as a clamping unit or a cutting unit, so that the opening / closing operation unit 4, that is, between the front ends of the first half 1 and the second half 2 facing each other. The object 3 to be sandwiched or to be cut is placed between the distal ends of which the distance is increased, and the distal ends of the first half 1 and the second half 2 are placed on the object 3. The state is brought into contact (at this time, no clamping force or cutting force is applied to the object 3 yet).

この際、間隔調整機構15を、対象物3を挟持した際の当接部7と受部6との離間間隔を広狭自在に調整し得る構成とした場合は、当接部7と受部6との離間間隔は開閉作業部4で挟持する対象物3の大きさ(厚みや径の大小)によって変動する(具体的には、対象物3の大きさが大きいほど離間間隔は広くなる)ので、この変動した離間間隔を間隔調整機構15で調整して所望の離間間隔に設定する。   At this time, when the distance adjusting mechanism 15 is configured to be able to adjust the distance between the contact portion 7 and the receiving portion 6 when the object 3 is sandwiched, the contact portion 7 and the receiving portion 6 can be adjusted. Since the separation interval varies depending on the size (thickness and diameter) of the object 3 held by the opening / closing operation unit 4 (specifically, the larger the size of the object 3 is, the wider the separation interval is). Then, the changed separation interval is adjusted by the interval adjustment mechanism 15 to set a desired separation interval.

また、間隔調整機構15を、対象物3を挟持した際の当接部7と受部6との離間間隔が開閉作業部4で挟持する対象物3の大きさが変動しても変わらず一定の離間間隔となる構成とした場合は、対象物3の大きさによって当接部7と受部6との離間間隔が変動しないので、離間間隔は予め設定した離間間隔になる。   Further, the distance adjusting mechanism 15 is not changed even when the size of the object 3 held by the opening / closing operation unit 4 is changed, even when the distance between the contact part 7 and the receiving part 6 when the object 3 is held is changed. In the case of the configuration in which the separation interval is set, the separation interval between the contact portion 7 and the receiving portion 6 does not vary depending on the size of the object 3, and thus the separation interval is a preset separation interval.

この開閉作業部4に対象物3を配置し当接部7と受部6との離間間隔を所望の離間間隔に設定した状態、若しくは、対象物3の大きさに関わらず一定の離間間隔とした状態で、開閉操作部5即ち対向する第一半体1と第二半体2との基端部に閉じ方向となる内方に押圧する閉力を増大させながら加えてゆくと、この開閉操作部5は、第一半体1と第二半体2とを交差枢着した交差枢着部9を動作支点として閉動してゆき、この開閉操作部5の閉動によって開閉作業部4には閉動しようとする力が作用しこれが挟持力若しくは切断力となり、この挟持力若しくは切断力は開閉操作部5に加えられる閉力の増大に伴って増大しながら対象物3を挟持若しくは切断することとなる。   A state in which the object 3 is arranged in the opening / closing operation unit 4 and the separation interval between the contact portion 7 and the receiving unit 6 is set to a desired separation interval, or a constant separation interval regardless of the size of the object 3 In this state, when the opening / closing operation portion 5, that is, the closing force that presses inward in the closing direction is applied to the proximal end portions of the first half body 1 and the second half body 2 that are opposed to each other, The operation unit 5 is closed by using the crossed pivoting portion 9 that is the first half 1 and the second half 2 crossed pivotally as an operation fulcrum, and the opening / closing operation unit 4 is closed by the opening / closing operation unit 5. Is applied with a force for closing, which becomes a clamping force or a cutting force, and the clamping force or the cutting force increases or decreases as the closing force applied to the opening / closing operation unit 5 increases. Will be.

また、本発明においては、対象物3を開閉作業部4で挟持した状態で開閉操作部5に閉力を増大させながら加えてゆくと、上記したように対象物3に対して挟持力若しくは切断力が増大しながら作用すると共に開閉操作部5が内方に撓み可動し、この開閉操作部5が撓み可動することによってこの開閉操作部5は閉動動作し、この開閉操作部5の撓み可動による閉動動作によって当接部7と受部6とが接近してゆき当接する。   In the present invention, if the closing force is applied to the opening / closing operation unit 5 while the object 3 is clamped by the opening / closing operation unit 4, the clamping force or cutting with respect to the object 3 as described above. While the force increases, the opening / closing operation unit 5 is deflected and moved inward, and the opening / closing operation unit 5 is bent and moved, whereby the opening / closing operation unit 5 is closed. The contact portion 7 and the receiving portion 6 approach each other and come into contact with each other due to the closing operation by the above.

この際、例えば開閉操作部5に閉力を加えてゆく操作を握持操作若しくは指先摘み操作によって行う場合は、開閉操作部5が撓み可動した際の反作用の力(復帰弾性力)をこの開閉操作部5を握持操作若しくは指先摘み操作している手や指先で感じ取ることができ、この反作用を感じ取ることで作業者は対象物3を挟持していることを容易に認識することができるので、作業者は挟持状態を見ずとも安心して作業を続けることができる。   At this time, for example, when an operation for applying a closing force to the opening / closing operation unit 5 is performed by a gripping operation or a fingertip picking operation, a reaction force (restoring elastic force) when the opening / closing operation unit 5 is bent and moved is used as the opening / closing operation. Since the operator can feel the operation unit 5 with a hand or fingertip that is gripping or picking a fingertip, and by sensing this reaction, the operator can easily recognize that the object 3 is being held. The worker can continue working with peace of mind without looking at the clamping state.

この当接部7と受部6とが当接すると、それまで交差枢着部9の一つだった開閉操作部5の動作支点が、当接部7と受部6とが当接する当接点10も動作支点として加わり、開閉操作部5の動作支点は、交差枢着部9と当接点10との二つとなる。   When the abutment portion 7 and the receiving portion 6 abut, the operating fulcrum of the opening / closing operation portion 5 that has been one of the cross-pivoting portions 9 is the abutment point at which the abutting portion 7 and the receiving portion 6 abut. 10 is also added as an operation fulcrum, and there are two operation fulcrums of the opening / closing operation unit 5, that is, the cross pivot part 9 and the contact point 10.

この当接部7と受部6とが当接して開閉操作部5の動作支点が二つになった状態からも引き続き開閉操作部5に閉力を増大させながら加えてゆくと、更に開閉操作部5は内方に撓み可動することで閉動操作可能であるが、この開閉操作部5に増大させながら加えていった閉力を挟持力若しくは切断力として開閉作業部4に伝達する伝達比は、当接部7と受部6とが当接する前の閉力を挟持力若しくは切断力として開閉作業部4に伝達する伝達比に比べて減じるように変化する。   Even when the contact portion 7 and the receiving portion 6 are in contact with each other so that the operating fulcrum of the opening / closing operation portion 5 becomes two, when the closing force is continuously applied to the opening / closing operation portion 5, further opening / closing operation is performed. The part 5 can be closed and operated by bending inwardly. However, the transmission ratio transmitted to the opening / closing work part 4 as a clamping force or cutting force is applied to the opening / closing operation part 5 while being increased. Changes so that the closing force before the contact portion 7 and the receiving portion 6 contact each other is reduced as compared with the transmission ratio transmitted to the opening / closing operation portion 4 as a clamping force or a cutting force.

言い換えると、開閉操作部5に閉力を加えてゆくことで変位する開閉操作部5の変位量(第一半体1の基端部と第二半体2の基端部との所定位置における離間間隔の変位量)に対する開閉作業部4の挟持力若しくは切断力の増大する割合が減じるように変化する。   In other words, the displacement amount of the opening / closing operation unit 5 that is displaced by applying a closing force to the opening / closing operation unit 5 (at a predetermined position between the proximal end portion of the first half 1 and the proximal end portion of the second half 2). The rate of increase of the clamping force or cutting force of the opening / closing work unit 4 with respect to the displacement amount of the separation interval is changed to decrease.

この伝達比が減じる変化とは、当接部7と受部6とが当接すると、対象物3を挟持する挟持力若しくは対象物3を切断する切断力の増大する割合が低下する、言い換えると、挟持力若しくは切断力が当接前に比べて緩やかに増大してゆくような変化や、いくら開閉操作部5に閉力を増大させながら加えていっても、当接部7と受部6とが当接すると、開閉作業部4の挟持力若しくは切断力が変化せずに一定の挟持力若しくは切断力を維持するような変化や、当接部7と受部6とが当接すると、開閉操作部5に閉力を増大しながら加えてゆくほど、開閉作業部4の挟持力若しくは切断力が減少してゆくような変化を意味し、これらいずれの変化を伴う構成でも良い。   The change in which the transmission ratio decreases is that when the abutting portion 7 and the receiving portion 6 abut, the rate of increase in the clamping force for clamping the object 3 or the cutting force for cutting the object 3 decreases, in other words. Even if the change in which the clamping force or the cutting force is gradually increased as compared with before contact, or how much the closing force is applied to the opening / closing operation portion 5 while increasing, the contact portion 7 and the receiving portion 6 When the contact portion 7 and the receiving portion 6 are in contact with each other, or when the contact portion 7 and the receiving portion 6 are in contact with each other, or the contact portion 7 and the receiving portion 6 are in contact with each other, This means a change in which the holding force or cutting force of the opening / closing operation unit 4 decreases as the closing force is applied to the opening / closing operation unit 5, and any of these changes may be adopted.

従って、いずれにしても当接部7が受部6に当接した状態では、開閉操作部5に加えた閉力が開閉作業部4に挟持力若しくは切断力として伝わり難くなるので、対象物3を挟持若しくは切断する際、従来の開閉作業具に比べて開閉操作部5を大きな操作量で操作することができ、よって、微妙な力加減を要する操作、言い換えると、開閉作業部4の挟持力若しくは切断力が急激に増大しないように開閉操作部5を微少な閉動量で調整しなければならない操作を、閉動量の大きな操作で操作することができるようになり微妙な力加減を要する際の操作性が向上する。   Accordingly, in any case, when the contact portion 7 is in contact with the receiving portion 6, the closing force applied to the opening / closing operation portion 5 is not easily transmitted to the opening / closing operation portion 4 as a clamping force or a cutting force. Can be operated with a large amount of operation compared to the conventional opening / closing operation tool, and therefore, an operation that requires delicate force adjustment, in other words, the clamping force of the opening / closing operation unit 4 Alternatively, when the opening / closing operation unit 5 must be adjusted with a small closing amount so that the cutting force does not increase suddenly, it can be operated with a large closing amount, and a delicate force adjustment is required. Operability is improved.

しかも、本発明は、対象物3を挟持した際の当接部7と受部6との離間間隔を広狭自在に調整する、若しくは、対象物3を挟持した際の当接部7と受部6との離間間隔が一定の離間間隔となるようにする間隔調整機構15を備えたので、この間隔調整機構15を対象物3を挟持した際の当接部7と受部6との離間間隔を広狭自在に調整し得る構成とした場合は、開閉作業部4で挟持した対象物3の大きさ(厚みや径の大小)によって変動する当接部7と受部6との離間間隔を広狭自在に調整することができるので、開閉操作部5に加えた閉力が伝わり難くなる作用が生じるまでに開閉作業部4で挟持している若しくは切断している対象物3に作用する挟持力若しくは切断力を自在に調整することができ、また、間隔調整機構15によって対象物3を挟持した際の当接部7と受部6との離間間隔が一定の離間間隔となるように構成した場合は、当接部7と受部6との離間間隔が開閉作業部4で挟持する対象物3の大きさに関わらず一定の離間間隔となるので、開閉操作部5に加えた閉力が伝わり難くなる作用が生じるまでに開閉作業部4で挟持している若しくは切断している対象物3に作用する挟持力若しくは切断力を挟持している対象物3の大きさに関わらず一定にすることができる。   In addition, according to the present invention, the distance between the contact portion 7 and the receiving portion 6 when the object 3 is clamped is adjusted to be wide or narrow, or the contact portion 7 and the receiving portion when the object 3 is clamped. 6 is provided with a distance adjusting mechanism 15 so that the distance between the contact portion 6 and the receiving portion 6 is held between the contact portion 7 and the receiving portion 6. Is configured to be adjustable in a wide and narrow manner, the spacing between the contact portion 7 and the receiving portion 6 that varies depending on the size (thickness or diameter) of the object 3 held by the opening / closing operation portion 4 is wide or narrow. Since it can be freely adjusted, the holding force acting on the object 3 held or cut by the opening / closing operation unit 4 until the closing force applied to the opening / closing operation unit 5 becomes difficult to be transmitted or The cutting force can be adjusted freely, and the object 3 is sandwiched by the interval adjusting mechanism 15. When the spacing between the contact portion 7 and the receiving portion 6 is set to be a constant spacing interval, the distance between the contacting portion 7 and the receiving portion 6 is the object to be sandwiched by the opening / closing operation portion 4 Since the distance is constant regardless of the size of the object 3, the object that is sandwiched or cut by the opening / closing operation unit 4 before the closing force applied to the opening / closing operation unit 5 becomes difficult to be transmitted. 3 can be made constant regardless of the size of the object 3 that holds the clamping force or cutting force acting on it.

即ち、この間隔調整機構15によって開閉作業部4で対象物3を挟持した際の当接部7と受部6との離間間隔を所望の離間間隔に調整若しくは予め設定することで、開閉操作部5に閉力を加えていっても開閉作業部4に所定値以上の挟持力や切断力が伝わらないように構成することも容易にできる構成であり、これによって、開閉操作部5に閉力を加え過ぎても、開閉作業部4で挟持若しくは切断している対象物3に所定値以上の大きな挟持力若しくは切断力が作用しないように構成することができるため、対象物3を潰してしまう、壊してしまう、キズを付けてしまう、或いは、切断したくないところを切断してしまうことを防止できる極めて優れた開閉作業具となる。   That is, the opening / closing operation unit can be adjusted by adjusting or presetting the separation interval between the contact portion 7 and the receiving portion 6 when the object 3 is clamped by the opening / closing operation unit 4 by the interval adjustment mechanism 15. Even when a closing force is applied to the opening / closing unit 5, the opening / closing operation unit 4 can be easily configured not to transmit a clamping force or a cutting force exceeding a predetermined value. Even if it adds too much, since it can be comprised so that the big clamping force or cutting force more than a predetermined value may not act on the target object 3 clamped or cut | disconnected by the opening / closing operation part 4, the target object 3 will be crushed. It becomes an extremely excellent opening / closing work tool that can prevent breakage, scratching, or cutting where it is not desired to cut.

従って、本発明は、このような特性を活かして様々な用途に使用することができ、しかも、このような画期的な作用効果を発揮する構成を簡易な構成で実現することができる画期的な開閉作業具となる。   Therefore, the present invention can be used for various purposes by taking advantage of such characteristics, and it is also an epoch that can realize a configuration that exhibits such an innovative effect with a simple configuration. It becomes a typical opening and closing work tool.

本発明の具体的な実施例について図1〜図6に基づいて説明する。   A specific embodiment of the present invention will be described with reference to FIGS.

本実施例は、第一半体1と第二半体2とを途中で交差枢着して、この第一半体1と第二半体2とを交差枢着した交差枢着部9よりも先端側の対向する第一半体1と第二半体2との先端部を挟持部とする開閉作業部4とし、交差枢着部9よりも基端側の対向する第一半体1と第二半体2とを開閉操作部5として、この開閉操作部5を閉じ方向となる内方に押圧する閉力を加えることで開閉作業部4が閉動して対象物3を挟持する挟持作業具に構成した開閉作業具において、開閉作業部4で対象物3を挟持した状態で開閉操作部5に閉力を加えていった際、この開閉操作部5に加えられた閉力が所定の閉力に達した時点でこの開閉操作部5に加えられた閉力を開閉作業部4に挟持力として伝える伝達比が減じるように変化する構成、言い換えると、開閉操作部5に加えた閉力が挟持力として開閉作業部4に伝わり難くなる構成としたものである。   In the present embodiment, the first half body 1 and the second half body 2 are cross-attached on the way, and the first half body 1 and the second half body 2 are cross-attached. Also, an opening / closing operation part 4 having a tip part between the first half 1 and the second half 2 facing each other on the distal end side as a sandwiching part, and a first half 1 facing the base end side with respect to the cross pivot part 9. The second half 2 is used as an opening / closing operation unit 5, and a closing force that presses the opening / closing operation unit 5 inward in the closing direction is applied, whereby the opening / closing operation unit 4 is closed to hold the object 3. When the closing force is applied to the opening / closing operation unit 5 in the state where the object 3 is sandwiched by the opening / closing operation unit 4 in the opening / closing operation tool configured as the holding operation tool, the closing force applied to the opening / closing operation unit 5 is A configuration that changes so as to reduce the transmission ratio that transmits the closing force applied to the opening / closing operation unit 5 to the opening / closing operation unit 4 as a clamping force when a predetermined closing force is reached, in other words, Closing force plus the opening and closing operation unit 5 is obtained by a configuration in which not easily transmitted to the opening and closing working portion 4 as clamping force.

具体的には、開閉操作部5に閉力を加えて開閉作業部4を閉動させ対象物3を挟持する際、対象物3を挟持した状態で開閉操作部5に加える閉力を増大させるに従い開閉操作部5が内方に撓み可動するように構成し、この開閉操作部5が内方に撓み可動することによって当接する当接部7と受部6とを備えると共に、対象物3を挟持した際の当接部7と受部6との離間間隔を広狭自在に調整し得る間隔調整機構15を備えた構成とし、この間隔調整機構15によって所望の離間間隔に調整した当接部7と受部6とが当接した状態で開閉操作部5に加える閉力を増大させてゆくと、この開閉操作部5は更に内方に撓み可動することによって閉動操作可能であるが、この開閉操作部5に加えた閉力を挟持力として開閉作業部4に伝達する伝達比は、当接部6と受部7との当接前の伝達比に比して減じるように構成している。   Specifically, when applying the closing force to the opening / closing operation unit 5 to close the opening / closing operation unit 4 to hold the object 3, the closing force applied to the opening / closing operation unit 5 is increased while the object 3 is held. The opening / closing operation unit 5 is configured to bend and move inward, and the opening / closing operation unit 5 includes an abutting unit 7 and a receiving unit 6 that come into contact with each other when the opening / closing operation unit 5 is bent and moved inward. A configuration is provided with a spacing adjusting mechanism 15 that can adjust the spacing interval between the abutting portion 7 and the receiving portion 6 at the time of clamping, and the abutting portion 7 adjusted to a desired spacing interval by the spacing adjusting mechanism 15. When the closing force applied to the opening / closing operation unit 5 is increased in a state where the receiving unit 6 is in contact with the receiving unit 6, the opening / closing operation unit 5 can be further closed and operated by being bent inward. The transmission ratio for transmitting the closing force applied to the opening / closing operation unit 5 to the opening / closing operation unit 4 as a clamping force is The transmission ratio before the contact between the portion 6 and the receiving portion 7 is reduced.

より具体的には、第一半体1及び第二半体2は、金属または合成樹脂からなる細長い帯板状部材を所定形状に形成した構成(本実施例においては金属を採用した構成、具体的にはアルミ板材若しくはステンレス板材を採用した構成)とし、また、夫々の先端部を対象物3(被挟持物)を挟持し得る形状に構成し基端部を握持操作若しくは指先摘み操作し得る形状に構成し、本実施例は、このように構成した第一半体1と第二半体2とを、夫々の先端部と基端部との境界位置で交差重合して枢着して、この第一半体1と第二半体2とを交差枢着した交差枢着部9よりも先端側を第一半体1と第二半体2との夫々の先端部が対向してなる挟持部とする開閉作業部4とし、交差枢着部9よりも基端側を第一半体1と第二半体2との夫々の基端部が対向してなる開閉操作部5とし、この開閉作業部4と開閉操作部5は交差枢着部9を支点に開閉回動自在とした構成としている。   More specifically, the first half 1 and the second half 2 have a configuration in which elongated strip-like members made of metal or synthetic resin are formed in a predetermined shape (in this embodiment, a configuration using metal, specifically In particular, the aluminum plate or stainless steel plate is used), and each tip is configured to hold the object 3 (the object to be clamped), and the base end is gripped or gripped. In this embodiment, the first half 1 and the second half 2 thus configured are cross-polymerized and pivotally attached at the boundary position between the distal end portion and the proximal end portion. Thus, the tip ends of the first half 1 and the second half 2 are opposed to each other on the tip side from the cross pivoting portion 9 where the first half 1 and the second half 2 are pivoted. The opening / closing operation part 4 as a sandwiching part is formed, and the base ends of the first half 1 and the second half 2 are opposed to each other with respect to the crossing pivot 9. And an opening and closing operation portion 5 formed by this opening and closing working portion 4 and the opening and closing operation unit 5 is configured so as to be opened and closed pivoting fulcrum cross pivot 9.

即ち、この第一半体1と第二半体2との夫々の基端部を対向状態に配設して構成した開閉操作部5を握持操作若しくは指先摘み操作してこの開閉操作部5に内方へ押圧する(開閉操作部5の対向間隔が狭まるように)閉力を加えることで、第一半体1と第二半体2が前記交差枢着部9を支点に回動して開閉作業部4が閉動すると共に開閉操作部5に加えた閉力がこの開閉作業部4に挟持力として伝達されて対象物3を加えた閉力に応じた挟持力で挟持する構成としている。   That is, the opening / closing operation unit 5 is configured by performing a gripping operation or a fingertip picking operation on the opening / closing operation unit 5 configured by disposing the base ends of the first half 1 and the second half 2 in an opposing state. The first half body 1 and the second half body 2 rotate about the intersection pivoting portion 9 as a fulcrum by applying a closing force that presses inwardly (so that the facing distance of the opening / closing operation portion 5 is narrowed). Thus, the opening / closing operation unit 4 is closed and the closing force applied to the opening / closing operation unit 5 is transmitted to the opening / closing operation unit 4 as a holding force so that the object 3 is held with a holding force corresponding to the closing force applied. Yes.

また、図1に示すように、開閉操作部5を構成する第一半体1の基端部と第二半体2の基端部は、夫々、開閉作業部4で対象物3を挟持した状態で開閉操作部5に加える閉力を増大させた際にこの第一半体1(第二半体2)の基端部を内方に撓み可動させる撓み可動因部8と、この撓み可動因部8により撓み可動する撓み部11とから成り、この撓み部11に当接部7を設けて、この当接部7を撓み部11が内方に撓み可動することによって後述する受部6に当接する構成としている。   In addition, as shown in FIG. 1, the base end portion of the first half 1 and the base end portion of the second half 2 constituting the opening / closing operation unit 5 sandwich the object 3 by the opening / closing operation unit 4. When the closing force applied to the opening / closing operation unit 5 in the state is increased, the bending movable factor portion 8 that causes the proximal end portion of the first half 1 (second half 2) to bend and move inward, and this bending movable It comprises a bending portion 11 which is bent and moved by the causal portion 8, and a contact portion 7 is provided on the bending portion 11, and the receiving portion 6 which will be described later is formed by the bending portion 11 being bent and moved inward. It is set as the structure contact | abutted.

具体的には、撓み可動因部8は、開閉操作部5を構成する第一半体1の基端部の交差枢着部9寄りの位置に設け、また、この第一半体1の基端部の他の部位よりも厚みを薄くして前記他の部位よりも剛性を低くして撓み部11を撓み可動し易い構成とすると共に、先端側が外方に凸となる湾曲形状、基端側が内方に凸となる湾曲形状の略S字状に形成した構成としている。   Specifically, the bending movable factor portion 8 is provided at a position near the cross pivoting portion 9 at the base end portion of the first half 1 constituting the opening / closing operation portion 5, and the base of the first half 1 is also provided. A curved shape in which the distal end side is outwardly convex, and the proximal end is made thin and thinner than the other part of the end part and less rigid than the other part to make the bending part 11 flexible and movable. It is set as the structure formed in the substantially S shape of the curved shape in which the side becomes convex inward.

また、撓み部11は、この撓み可動因部8によって内方に撓み可動する開閉操作部5であり、本実施例においては、撓み可動因部8の一部(基端側)もこの撓み部11に含む構成としている。   Further, the bending portion 11 is an opening / closing operation portion 5 that is bent and moved inward by the bending movable cause portion 8. In the present embodiment, a part (base end side) of the bending movable cause portion 8 is also this bending portion. 11 is included.

即ち、第一半体1、第二半体2夫々の基端部は、開閉操作部5を握持操作若しくは指先摘み操作して閉力を加えてゆくことで撓み可動因部8によって撓み部11が内方に撓み可動し、この撓み部11が内方に撓み可動することによってこの撓み部11に設けた当接部7が内方に移動し、開閉操作部5に加えられた閉力が所定値に達した時点で受部6と当接するように構成している。   That is, the base end of each of the first half 1 and the second half 2 is bent by the movable factor 8 by applying a closing force by gripping or gripping the opening / closing operation part 5. 11 is bent and moved inward, and when the bent portion 11 is bent and moved inward, the contact portion 7 provided on the bent portion 11 is moved inward, and the closing force applied to the opening / closing operation portion 5 is moved. Is configured to come into contact with the receiving portion 6 when it reaches a predetermined value.

尚、本実施例では、撓み可動因部8を他の部位の厚みよりも薄くすることで撓み部11を撓み可動し易い構成としたが、本実施例と同様の作用効果を発揮する構成であれば上記に限らず適宜採用するものとし、例えば第一半体1の基端部を棒状体で構成した場合は撓み可動因部8の径を他の部位に比べて細くした構成としたり、例えば、撓み可動因部8と他の部位との材質を変えた構成(撓み可動因部8を他の部位よりも剛性の低い材質ものを採用する)としても良い。   In the present embodiment, the bending movable factor 8 is made thinner than the thickness of the other portions, so that the bending portion 11 is easily bent and moved. However, the same effect as the present embodiment is exhibited. If there is, if not limited to the above, it should be adopted as appropriate, for example, when the base end portion of the first half 1 is composed of a rod-shaped body, the diameter of the flexible movable factor portion 8 is made thinner than other parts, For example, it is good also as a structure (The thing of a material whose rigidity is lower than the other site | part is employ | adopted as the material which changes the material of the bending movable factor part 8 and another site | part).

また、この開閉操作部5を構成する第一半体1、第二半体2夫々の基端部(具体的には撓み部11)に設けた当接部7がこの開閉操作部5が撓み可動して閉動することで当接する受部6は、対向する第一半体1の基端部と第二半体2の基端部との間に配設した間隔調整機構15に設けた構成としている。   Further, the abutment portion 7 provided at the base end portion (specifically, the bending portion 11) of each of the first half 1 and the second half 2 constituting the opening / closing operation portion 5 is bent by the opening / closing operation portion 5. The receiving portion 6 that contacts by moving and closing is provided in a distance adjusting mechanism 15 disposed between the base end portion of the first half body 1 and the base end portion of the second half body 2 that face each other. It is configured.

具体的には、間隔調整機構15は、交差枢着部9から開閉操作部5の基端側に突設したガイド部16と、このガイド部16に沿って移動自在に設けた受部6と、この受部6の移動位置を操作する受部位置操作部19とで構成している。   Specifically, the interval adjusting mechanism 15 includes a guide portion 16 that protrudes from the cross pivot portion 9 to the proximal end side of the opening / closing operation portion 5, and a receiving portion 6 that is provided so as to be movable along the guide portion 16. , And a receiving portion position operating portion 19 for operating the moving position of the receiving portion 6.

より具体的には、ガイド部16は帯板状に形成すると共に先端側に交差枢着部9を係合する枢設部を設け基端側に受部位置操作部19が螺嵌する雄ネジ部17を設けた構成とし、この雄ネジ部17に螺嵌した受部位置操作部19を回動操作することで、この帯板状のガイド部16にスライド移動自在に設けた受部6がガイド部16に沿って移動する構成としている。   More specifically, the guide portion 16 is formed in a band plate shape and has a pivot portion that engages the cross pivot portion 9 on the distal end side, and a male screw in which the receiving portion position manipulation portion 19 is screwed on the proximal end side. The receiving portion 6 provided slidably on the strip plate-shaped guide portion 16 is configured by rotating the receiving portion position operating portion 19 screwed into the male screw portion 17. It is configured to move along the guide portion 16.

また、この受部6は、先細り形状、具体的には、先端側(交差枢着部9側)に行くに連れて徐々に細くなる錘状体(本実施例では、四角錘)に形成して、この受部6と当接する当接部7との離間間隔が当接する箇所によって変動するように構成している。   In addition, the receiving portion 6 is formed in a tapered shape, specifically, a weight-like body (in this embodiment, a square weight) that gradually decreases as it goes to the tip side (crossed pivoting portion 9 side). Thus, the distance between the contact portion 7 and the contact portion 7 that contacts the receiving portion 6 varies depending on the contact position.

即ち、受部6は、当接部7が先端側と当接するほど離間間隔が広くなり基端側と当接するほど離間間隔が狭くなる形状に形成している。   That is, the receiving portion 6 is formed in a shape such that the separation interval becomes wider as the contact portion 7 comes into contact with the distal end side, and the separation interval becomes narrower as it comes into contact with the proximal end side.

よって、本実施例の間隔調整機構15は、この受部6の位置を、受部位置操作部19を操作して調整することで当接部7と受部6との離間間隔を広狭自在に調整することができる構成とし、具体的には、受部位置操作部19を回動操作して受部6をガイド部16の先端側に移動させることで当接部7は受部6の幅が広い(太い)基端側と当接することとなるので離間間隔を狭くする方向に調整でき、また、受部位置操作部19を回動操作して受部6をガイド部16の基端側に移動させることで当接部7は受部6の幅が狭い(細い)基端側と当接することとなるので離間間隔を広くする方向に調整できるように構成している。   Therefore, the distance adjusting mechanism 15 of the present embodiment adjusts the position of the receiving portion 6 by operating the receiving portion position operating portion 19 so that the separation interval between the contact portion 7 and the receiving portion 6 can be widened and narrowed. Specifically, the abutting portion 7 has a width of the receiving portion 6 by rotating the receiving portion position operating portion 19 to move the receiving portion 6 to the distal end side of the guide portion 16. Is in contact with the wide (thick) proximal end side, so that the separation interval can be adjusted to be narrowed. Also, the receiving portion position operating portion 19 is rotated to move the receiving portion 6 to the proximal end side of the guide portion 16. The contact portion 7 is in contact with the base end side of the receiving portion 6 where the width of the receiving portion 6 is narrow (thin).

尚、本実施例では受部6を錘状体(四角錘)に形成して離間間隔を無段階に調整できる構成としたが、例えば、受部6を段階的に先細る形状に形成した構成としても良い。   In the present embodiment, the receiving portion 6 is formed in a spindle-shaped body (square weight) so that the separation interval can be adjusted steplessly. For example, the receiving portion 6 is formed in a tapered shape stepwise. It is also good.

このように、本実施例の開閉操作部5は、第一半体1、第二半体2夫々の基端部の握持操作若しくは指先摘み操作によって閉力を加える力点部13に閉力を加えてゆくと、撓み可動因部8によって撓み部11が内方に撓み可動して開閉操作部5が内方に閉動してゆき、この開閉操作部5が内方に撓み可動して閉動してゆくことで間隔調整機構15によって所望の離間間隔となるように位置を調整した受部6に接近してゆき、この開閉操作部5に加えてゆく閉力が所定値に達した際にこの当接部7が受部6に当接するように構成している。   As described above, the opening / closing operation unit 5 of the present embodiment applies a closing force to the force point part 13 that applies a closing force by a gripping operation or a fingertip picking operation of the base ends of the first half 1 and the second half 2. In addition, the bending portion 11 is deflected and moved inward by the bending movable factor 8 and the opening / closing operation portion 5 is closed inward, and the opening / closing operation portion 5 is bent and moved inward and closed. When moving, the distance adjusting mechanism 15 approaches the receiving portion 6 whose position has been adjusted so as to obtain a desired separation interval, and when the closing force applied to the opening / closing operation portion 5 reaches a predetermined value. Further, the contact portion 7 is configured to contact the receiving portion 6.

また、本実施例は、この当接部7と受部6とが当接する当接点10が、開閉操作部5の閉動動作時の二つ目の動作支点となるように構成した力伝達比変動機構12を具備した構成とし、当接部7が受部6に当接した状態で開閉操作部5に加えてゆく閉力を増大させてゆくと、当接部7と受部6とが当接する前の開閉操作部5の支点となる交差枢着部9に加えてこの当接点10も支点となり、開閉操作部5は二つの動作支点で動作し、この動作支点が二つになることで開閉操作部5に増大させながら加えていった閉力を挟持力として開閉作業部4に伝達する伝達比が減じるように変化する構成としている。   Further, in this embodiment, the force transmission ratio is configured such that the contact point 10 where the contact portion 7 and the receiving portion 6 contact is the second operation fulcrum during the closing operation of the opening / closing operation portion 5. When the closing force applied to the opening / closing operation unit 5 is increased in a state where the variation mechanism 12 is provided and the contact unit 7 is in contact with the receiving unit 6, the contact unit 7 and the receiving unit 6 are The abutment point 10 is also a fulcrum in addition to the cross pivot 9 which is a fulcrum of the opening / closing operation unit 5 before the abutment, and the opening / closing operation unit 5 operates at two operation fulcrums, and this operation fulcrum becomes two Thus, the transmission force transmitted to the opening / closing operation unit 4 as a clamping force is increased so as to decrease the transmission ratio applied to the opening / closing operation unit 5.

具体的には、本実施例においては、開閉作業部4に対象物3を挟持した状態で開閉操作部5に閉力を加えていった際、当接部7と受部6とが当接するまでは、この開閉操作部5を構成する第一半体1の基端部と第二半体2の基端部のいずれも交差枢着部9を動作支点として閉動すると共にこの開閉操作部5に加えた閉力に応じた挟持力が開閉作業部4に作用し、当接部7と受部6とが当接した以降、更に開閉操作部5に閉力を増大させながら加えてゆくと、この開閉操作部5の閉動時の動作支点が二つ目の動作支点となる当接点10に変動し、この当接点10よりも基端側(力点部13側)の開閉操作部5は閉動し、この当接点10よりも先端側(交差枢着部9側)の開閉操作部5は外方に広がろうとする力(開動しようとする力)が作用し、この当接点10よりも先端側が外方に広がろうとする(開動しようとする)作用によって、開閉操作部5に加えた閉力を挟持力として開閉作業部4に伝達する伝達比が減じるように構成している。   Specifically, in this embodiment, when a closing force is applied to the opening / closing operation unit 5 with the object 3 held between the opening / closing operation unit 4, the contact unit 7 and the receiving unit 6 contact each other. Up to this point, both the proximal end portion of the first half 1 and the proximal end portion of the second half 2 constituting the opening / closing operation portion 5 are closed with the cross pivoting portion 9 as an operating fulcrum and the opening / closing operation portion. After the clamping force according to the closing force applied to 5 is applied to the opening / closing operation unit 4 and the contact portion 7 and the receiving portion 6 contact each other, the closing force is further applied to the opening / closing operation portion 5 while increasing the closing force. Then, the operating fulcrum when the opening / closing operation unit 5 is closed changes to a contact point 10 which is the second operation fulcrum, and the opening / closing operation unit 5 on the base end side (power point unit 13 side) from the contact point 10. Is closed, and the opening / closing operation portion 5 on the tip side (crossed pivoting portion 9 side) from the contact point 10 is subjected to a force to spread outward (force to open). 10 is configured such that the transmission ratio transmitted to the opening / closing operation unit 4 as a clamping force is reduced by the action of the tip side spreading toward the outside (triggering opening) than 10 by the closing force applied to the opening / closing operation unit 5. Yes.

この伝達比が減じる変化とは、本実施例の上記構成とした場合は、当接部7と受部6とが当接すると、開閉操作部5に閉力を増大しながら加えてゆくほど、開閉作業部4の挟持力が減少してゆくような変化を意味するものであり、即ち、本実施例は、開閉操作部5に閉力を加えてゆき当接部7と受部6とが当接し開閉操作部5の閉動操作時の支点が二つになった時点の開閉作業部4の挟持力が最大挟持力(挟持力のピーク値)となり、この当接部7と受部6とが当接した以降、更に閉力を増大させながら加えてゆくと、この閉力を増大させるに連れて開閉作業部4の挟持力が低下してゆく構成としている。   In the case of the above-described configuration of the present embodiment, the change in which the transmission ratio is reduced is such that when the contact portion 7 and the receiving portion 6 come into contact with each other, the closing force is applied to the opening / closing operation portion 5 while increasing. This means a change in which the clamping force of the opening / closing operation unit 4 decreases. In other words, in this embodiment, a closing force is applied to the opening / closing operation unit 5 so that the contact portion 7 and the receiving unit 6 are moved. The clamping force of the opening / closing operation unit 4 at the time when the fulcrum when the closing operation of the opening / closing operation unit 5 abuts becomes two becomes the maximum clamping force (peak value of the clamping force), and the contact unit 7 and the receiving unit 6 After the abutment, when the closing force is further increased while being applied, the holding force of the opening / closing operation unit 4 is reduced as the closing force is increased.

尚、本実施例は上述のように対象物3を挟持する開閉挟持具とした構成としているが、第一半体1と第二半体2の先端部を、対象物3を挟持し得る形状に構成する代わりに対象物3を切断し得る形状、即ち切断刃に構成して前記開閉作業部4を切断部とする開閉切断具とした構成としても良い。   In addition, although the present Example is set as the opening / closing clamping tool which clamps the target object 3 as mentioned above, the shape which can clamp the target object 3 at the front-end | tip part of the 1st half body 1 and the 2nd half body 2 It is good also as a structure which can cut | disconnect the target object 3 instead of comprising, ie, the structure used as the opening / closing cutting tool which comprises a cutting blade and uses the said opening / closing operation part 4 as a cutting part.

上述のように構成した本実施例の作用・効果について以下に説明する。   The operation and effect of the present embodiment configured as described above will be described below.

図2は、開閉作業部4で対象物3を挟持していない状態を示しており、この図2の状態から開閉作業部4で対象物3を挟持した状態を示したものが図3である。このように、開閉作業部4で対象物3を挟持することにより当接部7と受部6との離間間隔が広がる。   FIG. 2 shows a state in which the object 3 is not sandwiched by the opening / closing operation unit 4, and FIG. 3 shows a state in which the object 3 is sandwiched by the opening / closing operation unit 4 from the state of FIG. . In this manner, the gap between the contact portion 7 and the receiving portion 6 is widened by sandwiching the object 3 by the opening / closing operation portion 4.

この当接部7と受部6との離間間隔は、開閉作業部4で挟持する対象物3の大きさ(厚さや径の大小)によって変動し、対象物3の大きさが大きいほど離間間隔は広くなる。   The spacing interval between the contact portion 7 and the receiving portion 6 varies depending on the size (thickness or diameter) of the object 3 held by the opening / closing operation unit 4, and the spacing interval increases as the size of the object 3 increases. Becomes wider.

この当接部7と受部6との離間間隔が広くなるほど、当接部7と受部6とを当接状態にするためには、開閉操作部5に大きな閉力を加えなければならない。即ち、本実施例は、開閉操作部5が加えられた閉力によって内方に撓み可動することで当接部7と受部6とが当接するように構成したので、当接部7と受部6との離間間隔が広いほど、開閉操作部5をより大きく撓み可動させないと当接部7と受部6とが当接せず、この開閉操作部5をより大きく撓み可動させるには、より大きな閉力を開閉操作部5に加えなければならないこととなる。   As the spacing between the contact portion 7 and the receiving portion 6 increases, a larger closing force must be applied to the opening / closing operation portion 5 in order to bring the contact portion 7 and the receiving portion 6 into contact. That is, in this embodiment, the contact portion 7 and the receiving portion 6 are brought into contact with each other by being bent and moved inward by the closing force applied to the opening / closing operation portion 5. The wider the separation distance from the part 6, the more the opening / closing operation part 5 is bent and moved, and the contact part 7 and the receiving part 6 do not come into contact. A larger closing force must be applied to the opening / closing operation unit 5.

しかし、この開閉操作部5に大きな閉力を加えることによって、対象物3を挟持している開閉作業部4により大きな挟持力が作用することとなり、例えば、潰れ易いものや破損し易いもの、或いはキズが付き易いものといったデリケートな対象物3を挟持する場合、大きな挟持力が作用することでこのデリケートな対象物3を潰したり、破損させたり、キズを付けたりしてしまう可能性があり、よって、このようなデリケートな対象物3を挟持する場合は、このデリケートな対象物3を潰したり破損させたりキズを付けたりしないような小さな挟持力で挟持する必要がある。   However, when a large closing force is applied to the opening / closing operation unit 5, a large holding force is applied to the opening / closing operation unit 4 holding the object 3. For example, the opening / closing operation unit 5 is easily crushed or damaged, or When a delicate object 3 such as an object that is easily scratched is sandwiched, there is a possibility that the delicate object 3 may be crushed, damaged, or scratched by a large clamping force. Therefore, when such a delicate object 3 is sandwiched, it is necessary to sandwich the delicate object 3 with a small clamping force that does not crush, break, or damage the delicate object 3.

この点、本実施例は、当接部7と受部6との離間間隔を間隔調整機構15で広狭自在に調整できるので、対象物3を挟持したことによって広がった離間間隔を狭めて、対象物3に作用する挟持力を小さくすることができ、よって、開閉操作部5に大きな閉力を加えなくても当接部7を受部6に当接させることができる。   In this respect, in this embodiment, the separation interval between the abutment portion 7 and the receiving portion 6 can be adjusted in a wide and narrow manner by the interval adjustment mechanism 15. The clamping force acting on the object 3 can be reduced, so that the contact portion 7 can be brought into contact with the receiving portion 6 without applying a large closing force to the opening / closing operation portion 5.

具体的には、図4に示すように、間隔調整機構15によって受部6の位置を移動させて、当接部7との当接位置を変えることで離間間隔を調整することができる。   Specifically, as shown in FIG. 4, the separation interval can be adjusted by moving the position of the receiving portion 6 by the interval adjusting mechanism 15 and changing the contact position with the contact portion 7.

より具体的には、本実施例は、受部6を先端側が細い先細り形状に形成したので、対象物3に作用する挟持力を小さくしたい場合ほど、受部位置操作部19をねじ込み操作して受部6を先端側へ移動させることで、この受部6の基端側、即ち横幅(横方向厚さ)の厚い個所が当接部7との当接位置になることによって離間間隔が狭まり、この離間間隔が狭まることで開閉操作部5の閉動操作量(撓み可動量)が少ない状態、即ち、開閉操作部5に加える閉力が小さい段階で当接させることができ、これによって、開閉作業部4の挟持力を小さくすることができることとなる。   More specifically, in the present embodiment, since the receiving portion 6 is formed in a tapered shape with a narrow tip, the receiving portion position operating portion 19 is screwed and operated so as to reduce the clamping force acting on the object 3. By moving the receiving part 6 toward the distal end side, the base end side of the receiving part 6, that is, a portion having a large lateral width (lateral thickness) becomes a contact position with the contact part 7, thereby reducing the separation interval. In this state, the opening and closing operation unit 5 can be brought into contact with a small amount of closing operation amount (flexible movable amount), that is, the closing force applied to the opening and closing operation unit 5 is small. The clamping force of the opening / closing operation part 4 can be reduced.

即ち、図4のように、受部6を先端側に移動させて当接部7と、この当接部7が当接する受部6の位置との離間間隔を狭めた場合は、図5に示すように、開閉操作部5は、少ない閉動操作量で当接部7と受部6が当接することとなる。   That is, as shown in FIG. 4, when the receiving portion 6 is moved to the front end side and the spacing between the contact portion 7 and the position of the receiving portion 6 with which the contact portion 7 contacts is reduced, As shown, the opening / closing operation section 5 comes into contact with the contact section 7 and the receiving section 6 with a small amount of closing operation.

また、図6に示すように、受部6を図5よりも基端側に移動させて当接部7と受部6との離間間隔を図5の場合よりも広げた場合は、図5の開閉操作部5の閉動操作量よりも多い操作量で当接部7と受部6とが当接することとなり、よって、開閉作業部4が対象物3を挟持する挟持力は図5の場合よりも大きくなる。   Further, as shown in FIG. 6, when the receiving portion 6 is moved to the base end side with respect to FIG. 5 and the separation distance between the contact portion 7 and the receiving portion 6 is increased as compared with the case of FIG. The contact portion 7 and the receiving portion 6 come into contact with each other with an operation amount larger than the closing operation amount of the opening / closing operation portion 5, and the holding force with which the opening / closing operation portion 4 holds the object 3 is shown in FIG. Larger than the case.

この間隔調整機構15で当接部7と受部6との離間間隔を所望の離間間隔に調整した状態から開閉操作部5を握持操作若しくは指先摘み操作してこの開閉操作部5の力点部13に閉力を増大させながら加えてゆくと、第一半体1、第二半体2の双方の基端部に設けた夫々の撓み可動因部8によって第一半体1、第二半体2夫々の撓み部11が内方に撓み可動して開閉操作部5が閉動し、この開閉操作部5の閉動に伴い、撓み部11に設けた当接部7も内方に移動して間隔調整機構15に設けた受部6に接近してゆき当接する。   The force adjusting portion of the opening / closing operation unit 5 is operated by gripping or gripping the opening / closing operation unit 5 from a state in which the distance between the contact portion 7 and the receiving unit 6 is adjusted to a desired separation interval by the interval adjusting mechanism 15. If the closing force is applied to 13 while increasing the closing force, the first half 1 and the second half are caused by the respective flexible movable factors 8 provided at the base ends of both the first half 1 and the second half 2. The bending part 11 of each body 2 bends and moves inward, and the opening / closing operation part 5 closes. As the opening / closing operation part 5 closes, the contact part 7 provided on the bending part 11 also moves inward. Then, it approaches the receiving portion 6 provided in the interval adjusting mechanism 15 and comes into contact therewith.

この当接部7と受部6とが当接した状態となっても、更に開閉操作部5に閉力を増大させながら加えてゆくと、開閉操作部5を構成する第一半体1、第二半体2夫々の基端部は、当接部7と受部6とが当接した当接点10を動作支点にして、この当接点10よりも基端側(閉力を加える力点部13側)が内方に閉動し、当接点10よりも先端側が外方に開動し、この当接点10よりも先端側が外方に開動することで、開閉作業部4は交差枢着部9を動作支点として開動することとなり、この開閉作業部4が開動動作することによってこの開閉作業部4の挟持力は低下(減少)してゆくこととなる。   Even if the contact portion 7 and the receiving portion 6 are in contact with each other, if the closing force is further applied to the opening / closing operation portion 5 while increasing, the first half 1 constituting the opening / closing operation portion 5, The base end of each of the second halves 2 has an abutment point 10 where the abutment part 7 and the receiving part 6 abut as an operating fulcrum, and is closer to the base end side than this abutment point 10 13 side) is closed inward, the tip end side is opened outward from the contact point 10, and the tip end side is opened outward from the contact point 10. Is opened as an operation fulcrum, and the opening / closing operation portion 4 is opened, so that the clamping force of the opening / closing operation portion 4 is reduced (decreased).

即ち、本実施例は、当接部7と受部6とが当接した時点が開閉作業部4の最大挟持力(ピーク値)となるので、この当接部7と受部6とが当接するための条件設定、即ち、当接部7と受部6との離間間隔を変えることで、本実施例の対象物3を挟持する最大挟持力を所望の値に設定することができ、また、このような挟持力のピーク値の設定が間隔調整機構15で受部6を移動させるだけの極めて容易な操作で簡単に設定することができる実用性に優れた画期的な開閉作業具となる。   That is, in this embodiment, the point of contact between the contact portion 7 and the receiving portion 6 is the maximum clamping force (peak value) of the opening / closing operation portion 4, and therefore, the contact portion 7 and the receiving portion 6 are in contact with each other. The maximum clamping force for clamping the object 3 of this embodiment can be set to a desired value by changing the condition setting for contact, i.e., changing the separation distance between the contact part 7 and the receiving part 6, and An epoch-making opening / closing work tool excellent in practicality that can be easily set by an extremely easy operation of moving the receiving part 6 by the interval adjusting mechanism 15 to set the peak value of the clamping force. Become.

従って、本実施例の開閉作業具で挟持操作によって潰したくないもの、壊したくないもの、或いは表面にキズを付けたくないものなどデリケートな構造の対象物3を挟持する際、開閉作業部4に対象物3を潰さない、壊さない、或いは表面にキズを付けない挟持力で且つ十分に対象物3を挟持することが可能な挟持力が生じる所定の閉力を加えた際に当接部7と受部6とが当接するように離間間隔を調整することで、この対象物3を開閉作業部4で潰したり、破損させたり、或いはキズを付けたりしないように開閉操作部5の閉じ操作を微妙な閉力で調整しながら慎重に操作することなく、単に対向する開閉操作部5を互いに内方の閉じ方向に押圧させる閉力を増大させながら加える操作、例えば握持操作や指先での摘まみ操作といった極めて簡易な操作をするだけで上述したようなデリケートな構造の対象物3を潰したり、破損させたり、或いは表面にキズを付けたりすることなく簡単に挟持することができるので余計な気を使う必要がなくなり作業がし易くなり、更に、従来に比してスピーディーに操作できるので作業効率も格段に向上する実用性、作業性に優れた画期的な開閉作業具となる。   Therefore, when the object 3 having a delicate structure, such as an object that does not want to be crushed by the clamping operation, an object that does not want to be damaged, or an object that does not want to be scratched on the surface, is held in the opening / closing work unit 4. The contact portion 7 is applied when a predetermined closing force is generated that does not crush the object 3, does not break it, or does not damage the surface, and generates a clamping force that can sufficiently clamp the object 3. The opening / closing operation portion 5 is closed so that the object 3 is not crushed, damaged, or scratched by the opening / closing operation portion 4 by adjusting the separation distance so that the receiving portion 6 and the receiving portion 6 come into contact with each other. Without adjusting carefully with a delicate closing force, and simply applying an increasing closing force that presses the opposing opening / closing operation parts 5 toward each other in the inner closing direction, such as a gripping operation or a fingertip Extreme operations such as picking It is necessary to use extra care because the object 3 with the delicate structure as described above can be easily held without crushing, breaking, or scratching the surface with a simple operation. It becomes easy to work, and can be operated more speedily than before, so that it becomes a revolutionary opening and closing work tool with excellent practicality and workability that greatly improves work efficiency.

本発明の具体的な実施例について図7〜図11に基づいて説明する。   A specific embodiment of the present invention will be described with reference to FIGS.

本実施例は、実施例1において、当接部7を第一半体1の基端部に設け、受部6を第二半体2の基端部に設け、この受部6を設けた第二半体2に間隔調整機構15を設けて、この間隔調整機構15によって受部6が可動して当接部7と受部6との離間間隔を広狭自在に調整し得る構成とした場合である。   In this embodiment, the contact portion 7 is provided at the proximal end portion of the first half 1 and the receiving portion 6 is provided at the proximal end portion of the second half 2 in Embodiment 1, and this receiving portion 6 is provided. When the interval adjusting mechanism 15 is provided in the second half 2 and the receiving portion 6 is moved by the interval adjusting mechanism 15 so that the interval between the abutting portion 7 and the receiving portion 6 can be adjusted in a wide and narrow manner. It is.

具体的には、本実施例の開閉操作部5を構成する第一半体1の基端部は、実施例1の第一半体1の基端部と同様の構成であり、開閉作業部4で対象物3を挟持した状態で開閉操作部5に加える閉力を増大させた際にこの第一半体1の基端部を内方に撓み可動させる撓み可動因部8と、この撓み可動因部8により撓み可動する撓み部11とから成り、この撓み部11に当接部7を設けて、この当接部7を撓み部11が内方に撓み可動することによって後述する第二半体2の基端部に設けた受部6に当接するように構成している。   Specifically, the base end portion of the first half 1 constituting the opening / closing operation unit 5 of the present embodiment has the same configuration as the base end portion of the first half 1 of Example 1, and the opening / closing operation unit When the closing force applied to the opening / closing operation unit 5 is increased while the object 3 is sandwiched at 4, the bending movable factor portion 8 that causes the proximal end portion of the first half 1 to bend and move inward, and this bending It comprises a bending portion 11 which is bent and moved by the movable factor portion 8, and a contact portion 7 is provided in this bending portion 11, and the second portion described later is obtained by moving the contact portion 7 inwardly by bending the bending portion 11. It is comprised so that the receiving part 6 provided in the base end part of the half body 2 may contact | abut.

具体的には、撓み可動因部8は、開閉操作部5を構成する第一半体1の基端部の交差枢着部9寄りの位置に設け、また、この第一半体1の基端部の他の部位よりも厚みを薄くして前記他の部位よりも剛性を低くして撓み部11を撓み可動し易い構成とすると共に、先端側が外方に凸となる湾曲形状、基端側が内方に凸となる湾曲形状の略S字状に形成した構成としている。   Specifically, the bending movable factor portion 8 is provided at a position near the cross pivoting portion 9 at the base end portion of the first half 1 constituting the opening / closing operation portion 5, and the base of the first half 1 is also provided. A curved shape in which the distal end side is outwardly convex, and the proximal end is made thin and thinner than the other part of the end part and less rigid than the other part to make the bending part 11 flexible and movable. It is set as the structure formed in the substantially S shape of the curved shape in which the side becomes convex inward.

また、撓み部11は、この撓み可動因部8によって内方に撓み可動する開閉操作部5であり、本実施例においては、撓み可動因部8の一部(基端側)もこの撓み部11に含む構成としている。   Further, the bending portion 11 is an opening / closing operation portion 5 that is bent and moved inward by the bending movable cause portion 8. In the present embodiment, a part (base end side) of the bending movable cause portion 8 is also this bending portion. 11 is included.

即ち、第一半体1の基端部は、開閉操作部5を握持操作若しくは指先摘み操作して閉力を加えてゆくことで撓み可動因部8によって撓み部11が内方に撓み可動し、この撓み部11が内方に撓み可動することによってこの撓み部11に設けた当接部7が内方に移動し、開閉操作部5に加えられた閉力が所定値に達した時点で受部6と当接するように構成している。   That is, the base end portion of the first half 1 is movable by bending the bending portion 11 inward by the bending movable factor portion 8 by applying a closing force by gripping operation or fingertip operation of the opening / closing operation portion 5. When the bending portion 11 is bent inward and moved, the contact portion 7 provided on the bending portion 11 moves inward, and the closing force applied to the opening / closing operation portion 5 reaches a predetermined value. It is comprised so that it may contact | abut with the receiving part 6.

尚、本実施例では、撓み可動因部8を他の部位の厚みよりも薄くすることで撓み部11を撓み可動し易い構成としたが、本実施例と同様の作用効果を発揮する構成であれば上記に限らず適宜採用するものとし、例えば第一半体1の基端部を棒状体で構成した場合は撓み可動因部8の径を他の部位に比べて細くした構成としたり、例えば、撓み可動因部8と他の部位との材質を変えた構成(撓み可動因部8を他の部位よりも剛性の低い材質ものを採用する)としても良い。   In the present embodiment, the bending movable factor 8 is made thinner than the thickness of the other portions, so that the bending portion 11 is easily bent and moved. However, the same effect as the present embodiment is exhibited. If there is, if not limited to the above, it should be adopted as appropriate, for example, when the base end portion of the first half 1 is composed of a rod-shaped body, the diameter of the flexible movable factor portion 8 is made thinner than other parts, For example, it is good also as a structure (The thing of a material whose rigidity is lower than the other site | part is employ | adopted as the material which changes the material of the bending movable factor part 8 and another site | part).

また、上述した第一半体1の基端部と共に開閉操作部5を構成する第二半体2の基端部は、外方に凸となる湾曲形状に形成し、先端側(交差枢着部9側)に第一半体1の基端部に設けた当接部7と当接する受部6を設けた構成としている。   Further, the base end portion of the second half 2 constituting the opening / closing operation unit 5 together with the base end portion of the first half 1 described above is formed in a curved shape that protrudes outward, and the tip end side (crossed pivotal attachment) On the part 9 side), the receiving part 6 that contacts the contact part 7 provided at the base end part of the first half 1 is provided.

この受部6は弾性変形自在な構成とし、具体的には、第一半体1の基端部の当接部7に押圧されて弾性変形し得る構成としている。   The receiving portion 6 is configured to be elastically deformable. Specifically, the receiving portion 6 is configured to be elastically deformed by being pressed by the contact portion 7 at the base end portion of the first half 1.

より具体的には、本実施例の受部6は、板面を受け面とする湾曲した帯板状体に形成した構成とし、この板状体に形成した受部6の基端部を固定し先端部を自由端として第二半体2の基端部に内方に向かって突出した状態に設けた構成としている。   More specifically, the receiving portion 6 of the present embodiment has a configuration in which it is formed in a curved band plate-like body having a plate surface as a receiving surface, and the base end portion of the receiving portion 6 formed in this plate-like body is fixed. The distal end portion is a free end, and is provided in a state of projecting inwardly at the proximal end portion of the second half 2.

また、この受部6は、間隔調整機構15によって可動自在に構成しており、この間隔調整機構15は、第二半体2の基端部のこの受部6よりも基端側に設けた構成としている。   Further, the receiving portion 6 is configured to be movable by a distance adjusting mechanism 15, and the distance adjusting mechanism 15 is provided on the base end side of the base end portion of the second half 2 from the receiving portion 6. It is configured.

具体的には、この間隔調整機構15は、受部6を設ける可動板部23と、この可動板部23を押動する押動部24とで構成し、この押動部24を押動方向に移動させて可動板部23を押動することで、この可動板部23に設けた受部6を当接部7に接近する方向に移動させて当接部7と受部6との離間間隔を調整し得る構成としている。   Specifically, the distance adjusting mechanism 15 includes a movable plate portion 23 provided with the receiving portion 6 and a pushing portion 24 that pushes the movable plate portion 23, and the pushing portion 24 is pushed in the pushing direction. By moving the movable plate portion 23 and pushing the movable plate portion 23, the receiving portion 6 provided on the movable plate portion 23 is moved in a direction approaching the contact portion 7, and the contact portion 7 and the receiving portion 6 are separated from each other. The interval can be adjusted.

より具体的には、可動板部23は、円弧状に湾曲した帯板状弾性体で構成し、基端部を第二半体2の基端部に設け先端部を自由端にし、この自由端とした先端部には受部6を設ける受部固設部32を設けた構成としている。   More specifically, the movable plate portion 23 is composed of a strip-shaped elastic body curved in an arc shape, the base end portion is provided at the base end portion of the second half body 2, and the tip end portion is a free end. A receiving portion fixing portion 32 for providing the receiving portion 6 is provided at the end portion as an end.

また、押動部24は雄ネジから成り、この雄ネジから成る押動部24は第二半体2の基端部に設けた雌ネジ部26を有する押動部取付け部25に螺着し、回動螺動操作によって進退自在に設けた構成としている。   The pushing portion 24 is composed of a male screw, and the pushing portion 24 made of this male screw is screwed to a pushing portion mounting portion 25 having a female screw portion 26 provided at the proximal end portion of the second half 2. In this configuration, it can be moved forward and backward by a rotating screw operation.

即ち、本実施例における間隔調整機構15は、雄ネジから成る押動部24を螺挿する方向に回動螺動操作してこの押動部24を前進させることで、この押動部24の先端部が可動板部23の受部固設部32に当接してこれを押圧し、この受部固設部32が押動部24に押圧されることで円弧状可動板部23が弾性変形して円弧の形状が広がり、この可動板部23の広がり変形によって受部固設部32は前方且つ稍上方へ移動し、この受部固設部32が前方且つ上方へ移動することで、この受部固設部32に設けた受部6が当接部7に接近してこの当接部7と受部6との離間間隔が狭まるように構成している。   That is, the distance adjusting mechanism 15 in this embodiment moves the pushing portion 24 forward by rotating the pushing portion 24 in the direction in which the pushing portion 24 made of a male screw is screwed. The distal end abuts against and presses the receiving portion fixing portion 32 of the movable plate portion 23, and the receiving portion fixing portion 32 is pressed by the pushing portion 24, whereby the arcuate movable plate portion 23 is elastically deformed. Then, the shape of the arc spreads, and the receiving plate fixing portion 32 moves forward and upward by the spreading deformation of the movable plate portion 23, and this receiving portion fixing portion 32 moves forward and upward. The receiving portion 6 provided in the receiving portion fixing portion 32 is configured to approach the abutting portion 7 so that the spacing between the abutting portion 7 and the receiving portion 6 is narrowed.

即ち、本実施例の開閉操作部5は、開閉作業部4で対象物3を挟持した状態で、この第二半体2の基端部に設けた間隔調整機構15で受部6を可動させて、対象物3を挟持したことによって広がった当接部7と受部6との離間間隔を所望の間隔まで狭め、この当接部7と受部6との離間間隔を所望の離間間隔に調整した状態で、開閉操作部5を握持操作若しくは指先摘み操作して閉力を加えてゆくと第一半体1の基端部の先端側に設けた撓み可動因部8によって撓み部11が内方に撓み可動し、この撓み部11が内方に撓み可動することでこの撓み部11に設けた当接部7が内方に移動してゆき、この内方に移動していった当接部7は、開閉操作部5に加えられた閉力が所定値に達した時点で第二半体2の基端部に設けた受部6と当接し、この当接部7と受部6とが当接した後も引き続き開閉操作部5に閉力を加えてゆくと、第一半体1の基端部と第二半体2の基端部は共に閉動し開閉操作部5自体は閉動操作可能であり、更に受部6は当接部7に押圧されて弾性変形する構成としている。   That is, the opening / closing operation unit 5 of this embodiment moves the receiving unit 6 by the interval adjusting mechanism 15 provided at the base end portion of the second half 2 while the object 3 is held by the opening / closing operation unit 4. Thus, the separation interval between the contact portion 7 and the receiving portion 6 that has spread by sandwiching the object 3 is reduced to a desired interval, and the separation interval between the contact portion 7 and the receiving portion 6 is set to a desired separation interval. In the adjusted state, when the closing operation is applied by gripping operation or fingertip operation of the opening / closing operation unit 5, the bending portion 11 is provided by the bending movable factor portion 8 provided on the distal end side of the proximal end portion of the first half 1. Is bent and moved inward, and the bent portion 11 is bent and moved inward, so that the contact portion 7 provided on the bent portion 11 is moved inward and moved inward. The contact portion 7 contacts the receiving portion 6 provided at the base end portion of the second half 2 when the closing force applied to the opening / closing operation portion 5 reaches a predetermined value. When the closing force is continuously applied to the opening / closing operation unit 5 after the receiving unit 6 comes into contact, the proximal end portion of the first half 1 and the proximal end portion of the second half 2 are both closed and opened / closed. The part 5 itself can be closed and the receiving part 6 is configured to be elastically deformed by being pressed by the contact part 7.

また、本実施例では、この開閉操作部5の内方への撓み可動(具体的には、第一半体1の基端部の撓み部11の内方への撓み可動)によって当接し合う当接部7と受部6との当接点10が第一半体1の基端部の閉動時の動作支点となるように構成してこれを力伝達比変動機構12とし、開閉作業部4に対象物3を挟持した状態で開閉操作部5に閉力を加えていった際、当接部7と受部6とが当接していない状態においては、この開閉操作部5を構成する第一半体1の基端部と第二半体2の基端部のいずれも交差枢着部9を動作支点として閉動し、当接部7と受部6とが当接した状態で更に開閉操作部5に閉力を増大させながら加えてゆくと、第二半体2の基端部は引き続き交差枢着部9を動作支点として閉動するが、第一半体1の基端部は当接部7と受部6とが当接する当接点10を動作支点として閉動する構成とし、この当接部7と受部6とが当接して第一半体1の基端部の動作支点が交差枢着部9から当接点10に変動することで、開閉操作部5に加えた閉力を挟持力として開閉作業部4に伝達する伝達比が減じるように構成している。   Further, in this embodiment, the opening / closing operation part 5 is brought into contact with each other by being movable inward (specifically, the base part of the first half 1 is movable inwardly of the flexible part 11). An abutment point 10 between the abutment portion 7 and the receiving portion 6 is configured to be an operation fulcrum when the proximal end portion of the first half 1 is closed, and this is used as a force transmission ratio variation mechanism 12, and an opening / closing operation portion When the closing force is applied to the opening / closing operation part 5 with the object 3 being held between the objects 4, the opening / closing operation part 5 is configured in a state where the contact part 7 and the receiving part 6 are not in contact. Both the proximal end portion of the first half 1 and the proximal end portion of the second half 2 are closed with the cross pivoting portion 9 as an operating fulcrum, and the contact portion 7 and the receiving portion 6 are in contact with each other. When the closing force is further applied to the opening / closing operation portion 5 while increasing, the proximal end portion of the second half body 2 continues to close with the cross pivoting portion 9 as an operating fulcrum. The abutment part 7 The contact point 10 with which the part 6 comes into contact is closed as an operation fulcrum, and the contact part 7 and the receiving part 6 come into contact with each other so that the operation fulcrum at the base end portion of the first half 1 is the cross pivot part. By changing from 9 to the contact point 10, the transmission ratio transmitted to the opening / closing operation unit 4 by using the closing force applied to the opening / closing operation unit 5 as a clamping force is reduced.

この伝達比が減じる変化とは、本実施例においては、開閉操作部5に閉力を加えていっても開閉作業部4の挟持力が増大していかないような変化を意味するものであり、即ち、開閉操作部5に閉力を加えてゆき当接部7と受部6とが当接し、第一半体1の基端部の動作支点が交差枢着部9から当接点10に変動した時点から、いくら開閉操作部5に閉力を加えていっても、開閉作業部4の挟持力は当接部7と受部6とが当接した時点の挟持力から変化せず、略一定の挟持力が維持される変化を意味するものである。   In the present embodiment, the change in which the transmission ratio decreases means a change in which the holding force of the opening / closing operation unit 4 does not increase even when a closing force is applied to the opening / closing operation unit 5. That is, a closing force is applied to the opening / closing operation part 5 so that the contact part 7 and the receiving part 6 come into contact with each other, and the operating fulcrum of the base end part of the first half 1 changes from the crossing joint part 9 to the contact point 10. Even if the closing force is applied to the opening / closing operation unit 5 from the time when the opening / closing operation unit 5 is applied, the holding force of the opening / closing operation unit 4 does not change from the holding force at the time when the contact unit 7 and the receiving unit 6 contact each other. This means a change in which a constant clamping force is maintained.

尚、本実施例は上述のように対象物3を挟持する開閉挟持具とした構成としているが、第一半体1と第二半体2の先端部を対象物3を挟持し得る形状に構成する代わりに、対象物3を切断し得る形状、即ち切断刃に構成して前記開閉作業部4を切断部とする開閉切断具とした構成としても良い。   In addition, although a present Example is set as the structure used as the opening / closing clamping tool which clamps the target object 3 as mentioned above, the shape which can hold the target object 3 in the front-end | tip part of the 1st half body 1 and the 2nd half body 2 is used. Instead of the configuration, it may be configured as an open / close cutting tool that can cut the object 3, that is, a cutting blade and uses the open / close operation unit 4 as a cutting unit.

上述のように構成した本実施例の作用・効果について以下に説明する。   The operation and effect of the present embodiment configured as described above will be described below.

図7は、開閉作業部4で対象物3を挟持していない状態を示しており、この図7の状態から開閉作業部4で対象物3を挟持した状態を示したものが図8である。このように、開閉作業部4で対象物3を挟持することにより当接部7と受部6との離間間隔が広がる。   FIG. 7 shows a state in which the object 3 is not sandwiched by the opening / closing operation unit 4, and FIG. 8 shows a state in which the object 3 is sandwiched by the opening / closing operation unit 4 from the state of FIG. . In this manner, the gap between the contact portion 7 and the receiving portion 6 is widened by sandwiching the object 3 by the opening / closing operation portion 4.

この当接部7と受部6との離間間隔は、開閉作業部4で挟持する対象物3の大きさ(厚さや径の大小)によって変動し、対象物3の大きさが大きいほど離間間隔は広くなる。   The spacing interval between the contact portion 7 and the receiving portion 6 varies depending on the size (thickness or diameter) of the object 3 held by the opening / closing operation unit 4, and the spacing interval increases as the size of the object 3 increases. Becomes wider.

この当接部7と受部6との離間間隔が広くなるほど、当接部7と受部6とを当接状態にするためには、開閉操作部5に大きな閉力を加えなければならない。即ち、本実施例は、開閉操作部5が加えられた閉力によって内方に撓み可動することで当接部7と受部6とが当接するように構成したので、当接部7と受部6との離間間隔が広いほど、開閉操作部5をより大きく撓み可動させないと当接部7と受部6とが当接せず、この開閉操作部5をより大きく撓み可動させるには、より大きな閉力を開閉操作部5に加えなければならないこととなる。   As the spacing between the contact portion 7 and the receiving portion 6 increases, a larger closing force must be applied to the opening / closing operation portion 5 in order to bring the contact portion 7 and the receiving portion 6 into contact. That is, in this embodiment, the contact portion 7 and the receiving portion 6 are brought into contact with each other by being bent and moved inward by the closing force applied to the opening / closing operation portion 5. The wider the separation distance from the part 6, the more the opening / closing operation part 5 is bent and moved, and the contact part 7 and the receiving part 6 do not come into contact. A larger closing force must be applied to the opening / closing operation unit 5.

しかし、この開閉操作部5に大きな閉力を加えることによって、対象物3を挟持している開閉作業部4により大きな挟持力が作用することとなり、例えば、潰れ易いものや破損し易いもの、或いはキズが付き易いものといったデリケートな対象物3を挟持する場合、大きな挟持力が作用することでこのデリケートな対象物3を潰したり、破損させたり、キズを付けたりしてしまう可能性があり、よって、このようなデリケートな対象物3を挟持する場合は、このデリケートな対象物3を潰したり破損させたりキズを付けたりしないような小さな挟持力で挟持する必要がある。   However, when a large closing force is applied to the opening / closing operation unit 5, a large holding force is applied to the opening / closing operation unit 4 holding the object 3. For example, the opening / closing operation unit 5 is easily crushed or damaged, or When a delicate object 3 such as an object that is easily scratched is sandwiched, there is a possibility that the delicate object 3 may be crushed, damaged, or scratched by a large clamping force. Therefore, when such a delicate object 3 is sandwiched, it is necessary to sandwich the delicate object 3 with a small clamping force that does not crush, break, or damage the delicate object 3.

この点、本実施例は、当接部7と受部6との離間間隔を間隔調整機構15で広狭自在に調整できるので、対象物3を挟持したことによって広がった離間間隔を狭めて、対象物3に作用する挟持力を小さくすることができる。   In this respect, in this embodiment, the separation interval between the abutment portion 7 and the receiving portion 6 can be adjusted in a wide and narrow manner by the interval adjustment mechanism 15. The clamping force acting on the object 3 can be reduced.

具体的には、図9に示すように、間隔調整機構15によって受部6の位置を移動させて、当接部7との当接位置を変えることで離間間隔を調整することができる。   Specifically, as shown in FIG. 9, the separation interval can be adjusted by moving the position of the receiving portion 6 by the interval adjusting mechanism 15 and changing the contact position with the contact portion 7.

より具体的には、本実施例は、間隔調整機構15の雄ネジから成る押動部24を螺挿する方向に回動螺動操作してこの押動部24を前進させることで、この押動部24の先端部が受部6を設けた可動板部23の受部固設部32に当接してこれを押圧し、この受部固設部32が押動部24に押圧されることによって受部6を当接部7側に移動させて離間間隔を狭める調整を行っている。   More specifically, in the present embodiment, the pushing portion 24 is moved forward in the direction in which the pushing portion 24 made of an external thread of the interval adjusting mechanism 15 is screwed to advance the pushing portion 24. The distal end of the moving portion 24 abuts against and presses the receiving portion fixing portion 32 of the movable plate portion 23 provided with the receiving portion 6, and the receiving portion fixing portion 32 is pressed by the pushing portion 24. Thus, the receiving portion 6 is moved to the abutting portion 7 side to adjust the separation interval.

この離間間隔が狭まることで開閉操作部5の撓み量(閉動操作量)が小さい状態、即ち、開閉操作部5に加える閉力が小さい段階で当接させることができ、これによって、開閉作業部4の挟持力を小さくすることができることとなる。   When the spacing interval is narrowed, the opening / closing operation unit 5 can be brought into contact with a small amount of bending (closing operation amount), that is, when the closing force applied to the opening / closing operation unit 5 is small. The clamping force of the part 4 can be reduced.

この間隔調整機構15で当接部7と受部6との離間間隔を所望の離間間隔に調整した状態から開閉操作部5を握持操作若しくは指先摘み操作してこの開閉操作部5の力点部13に閉力を増大させながら加えてゆくと、図10に示すように、第一半体1の基端部に設けた撓み可動因部8によって撓み部11が内方に撓み可動して第一半体1の基端部が閉動し、第一半体1の基端部の閉動に伴い、撓み部11に設けた当接部7も内方に移動して第二半体2に設けた受部6に接近してゆき当接する。   The force adjusting portion of the opening / closing operation unit 5 is operated by gripping or gripping the opening / closing operation unit 5 from a state in which the distance between the contact portion 7 and the receiving unit 6 is adjusted to a desired separation interval by the interval adjusting mechanism 15. When the closing force is applied to 13 while increasing the closing force, as shown in FIG. 10, the bending portion 11 is bent inward by the bending movable factor portion 8 provided at the proximal end portion of the first half body 1 and moved. The base end portion of the first half 1 is closed, and the contact portion 7 provided on the bending portion 11 is also moved inward in accordance with the closing movement of the base end portion of the first half 1. It comes close to the receiving part 6 provided in the contact.

この当接部7と受部6とが当接した状態となっても、更に開閉操作部5に閉力を増大させながら加えてゆくと、図11に示すように、開閉操作部5の一側の第一半体1の基端部が撓み可動因部8によって内方に撓み可動して閉動し、この第一半体1の基端部の閉動によって第二半体2に設けた受部6が当接部7に押圧されて弾性変形し、この受部6の弾性変形によって当接部7と受部6とが当接している当接点10が第二半体2側へ移動し、この当接点10が第二半体2側へ移動することによって開閉操作部5に加える閉力が開閉作業部4に伝達されなくなる。   Even when the contact portion 7 and the receiving portion 6 are in contact with each other, if the closing force is further applied to the opening / closing operation portion 5 as shown in FIG. The base end portion of the first half 1 on the side is bent and moved inward by the bending movable factor 8 and closed, and the second half 2 is provided by the closing movement of the base end portion of the first half 1. The receiving part 6 is pressed by the contact part 7 and elastically deformed, and the contact point 10 where the contact part 7 and the receiving part 6 are in contact by the elastic deformation of the receiving part 6 is directed to the second half 2 side. When the contact point 10 moves to the second half 2 side, the closing force applied to the opening / closing operation unit 5 is not transmitted to the opening / closing operation unit 4.

よって、当接部7と受部6とが当接した以降、いくら開閉操作部5に閉力を加えていっても開閉作業部4の対象物3を挟持する挟持力は増大せずに略一定の挟持力を維持することとなる。   Therefore, after the contact portion 7 and the receiving portion 6 are in contact with each other, even if a closing force is applied to the opening / closing operation portion 5, the holding force for holding the object 3 of the opening / closing operation portion 4 does not increase and is substantially reduced. A certain clamping force will be maintained.

このように、本実施例は、間隔調整機構15で受部6を当接部7側に移動させて当接部7と受部6との離間間隔を広狭自在に調整することができ、この離間間隔の広狭を自在に調整することで、当接部7と受部6とが当接するまでに対象物3に作用する挟持力を自在に調整することができ、よって、強い挟持力で挟持したくないデリケートな対象物3を挟持する場合も、この間隔調整機構15で離間間隔を狭める調整を行い開閉作業部4の挟持力を抑えることで安心して挟持操作することができる実用性に優れた画期的な開閉作業具となる。   Thus, in this embodiment, the spacing adjustment mechanism 15 can move the receiving portion 6 toward the abutting portion 7 to adjust the separation interval between the abutting portion 7 and the receiving portion 6 in a wide and narrow manner. By freely adjusting the width of the separation interval, it is possible to freely adjust the holding force acting on the object 3 until the contact portion 7 and the receiving portion 6 come into contact with each other. Even when a delicate object 3 that you do not want to hold is clamped, this spacing adjustment mechanism 15 makes adjustments that narrow the spacing interval and suppresses the clamping force of the opening and closing work unit 4, so that it can be operated with peace of mind. It becomes a breakthrough opening and closing work tool.

その余は、実施例1と同様である。   The rest is the same as in Example 1.

本発明の具体的な実施例について図12〜図17に基づいて説明する。   Specific embodiments of the present invention will be described with reference to FIGS.

本実施例は、実施例1において、当接部7を第一半体1の基端部に設け、受部6を第二半体2の基端部に設け、当接部7と受部6との一方を、内方に長さを有する形状に形成すると共に、開閉作業部4で挟持する対象物3の大きさによって受部6が当接する位置が変動するが開閉作業部4で対象物3を挟持した状態の当接部7と受部6との離間間隔は変動しない形状に構成して間隔調整機構15を構成した場合である。   In this embodiment, the contact portion 7 is provided at the proximal end portion of the first half 1 and the receiving portion 6 is provided at the proximal end portion of the second half 2 in the first embodiment. 6 is formed in a shape having a length inward, and the position where the receiving portion 6 abuts varies depending on the size of the object 3 sandwiched by the opening / closing operation portion 4. This is a case where the distance adjusting mechanism 15 is configured by forming the spacing distance between the contact portion 7 and the receiving portion 6 in a state in which the object 3 is sandwiched with a shape that does not vary.

即ち、実施例1,実施例2に示す開閉作業具は、開閉作業部4で挟持する対象物3の厚みが厚いほど、若しくは径が大きいほど、これを挟持した際の当接部7と受部6との離間間隔は広がり、この離間間隔が広がるほど当接部7と受部6とを当接させるために大きな閉力を開閉操作部5に加えることとなり、この当接部7と受部6とが当接するまでに開閉操作部5に加えられる閉力が大きいほど、開閉作業部4に作用する挟持力も大きくなるので、厚みが厚い対象物3や径が大きい対象物3を挟持した場合は、厚みが薄い対象物3や径が小さい対象物3を挟持した場合に比べて最大挟持力、即ち当接部7と受部6とが当接した以降の一定の挟持力の値が大きくなってしまうので、この厚みが厚い対象物3や径が大きい対象物3を挟持することで、厚みが薄い対象物3や径が小さい対象物3を挟持した場合よりも広くなった離間間隔を狭めて開閉作業部4に作用する最大挟持力を減じるための間隔調整機構15を設けた構成としており、この間隔調整機構15を操作して離間間隔を所望の離間間隔に調整することで厚みが厚い対象物3や径が大きい対象物3を挟持した場合でも、厚みが薄い対象物3や径が小さい対象物3を挟持した場合と同じ最大挟持力に設定することが可能となるが、本実施例は、この実施例1や実施例2で示したような間隔調整機構15を設けずとも、また、一々当接部7と受部6との離間間隔を調整する操作をしなくても、単に開閉作業部4に対象物3を挟持した状態で開閉操作部5に閉力を加えてゆき閉動操作するだけで、厚みが厚い対象物3や径が大きい対象物3を挟持した場合と、厚みが薄い対象物3や径が小さい対象物3を挟持した場合とで、最大挟持力が同等になるように構成した開閉作業具である。   In other words, the opening / closing operation tool shown in the first and second embodiments has a function of receiving the contact portion 7 and the receiving portion 7 when the object 3 held by the opening / closing operation portion 4 is thicker or larger in diameter. The spacing interval with the portion 6 increases, and as the spacing interval increases, a larger closing force is applied to the opening / closing operation portion 5 in order to bring the abutting portion 7 and the receiving portion 6 into contact with each other. The greater the closing force applied to the opening / closing operation unit 5 until it comes into contact with the part 6, the greater the clamping force that acts on the opening / closing operation unit 4, so that the thick object 3 or the large object 3 is sandwiched. In this case, the maximum clamping force, that is, a constant clamping force value after the contact portion 7 and the receiving portion 6 contact each other, compared to the case where the thin object 3 or the small diameter object 3 is sandwiched. Since it will become large, sandwiching the object 3 with a large thickness or the object 3 with a large diameter A configuration in which an interval adjusting mechanism 15 is provided for reducing the maximum clamping force acting on the opening / closing operation unit 4 by narrowing the separation interval which is wider than when the object 3 having a small thickness or the object 3 having a small diameter is sandwiched. Even when the object 3 having a large thickness or the object 3 having a large diameter is sandwiched by operating the interval adjusting mechanism 15 to adjust the separation interval to a desired separation interval, Although it is possible to set the same maximum clamping force as that when the object 3 having a small diameter is clamped, the present embodiment does not include the interval adjusting mechanism 15 as shown in the first and second embodiments. In addition, it is possible to apply a closing force to the opening / closing operation unit 5 while simply holding the object 3 between the opening / closing operation unit 4 without performing an operation of adjusting the distance between the contact unit 7 and the receiving unit 6 one by one. A thick object 3 or a large object 3 can be obtained by simply closing and moving. To the case of sandwiching, in the case of thin objects 3 or diameter thickness was sandwiched a small object 3, a closing implement the maximum clamping force is configured to be equal.

具体的には、図12に示すように、開閉操作部5を構成する第一半体1の基端部は、開閉作業部4で対象物3を挟持した状態で開閉操作部5に加える閉力を増大させた際にこの第一半体1の基端部を内方に撓み可動させる撓み可動因部8と、この撓み可動因部8により撓み可動する撓み部11とから成り、この撓み部11に当接部7を設けて、この当接部7を撓み部11が内方に撓み可動することによって後述する第二半体2の基端部に設けた受部6に接近し当接するように構成している。   Specifically, as shown in FIG. 12, the proximal end portion of the first half 1 constituting the opening / closing operation unit 5 is closed to be applied to the opening / closing operation unit 5 while the object 3 is sandwiched by the opening / closing operation unit 4. When the force is increased, the first half 1 is composed of a bending movable factor portion 8 that bends and moves inwardly and a bending portion 11 that is bent and movable by the bending movable factor portion 8. The contact portion 7 is provided in the portion 11, and the contact portion 7 is moved inwardly by the bending portion 11 so that the contact portion 7 approaches the receiving portion 6 provided at the proximal end portion of the second half 2 described later. It is configured to touch.

具体的には、撓み可動因部8は、開閉操作部5を構成する第一半体1の基端部の交差枢着部9寄りの位置に設け、また、この第一半体1の基端部の他の部位よりも厚みを薄くして前記他の部位よりも剛性を低くして撓み部11を撓み可動し易い構成とすると共に、先端側が外方に凸となる湾曲形状、基端側が内方に凸となる湾曲形状の略S字状に形成した構成としている。   Specifically, the bending movable factor portion 8 is provided at a position near the cross pivoting portion 9 at the base end portion of the first half 1 constituting the opening / closing operation portion 5, and the base of the first half 1 is also provided. A curved shape in which the distal end side is outwardly convex, and the proximal end is made thin and thinner than the other part of the end part and less rigid than the other part to make the bending part 11 flexible and movable. It is set as the structure formed in the substantially S shape of the curved shape in which the side becomes convex inward.

また、撓み部11は、この撓み可動因部8により内方に撓み可動する開閉操作部5の一部であり、本実施例においては、撓み可動因部8の一部(基端側)もこの撓み部11に含む構成としている。   Further, the bending portion 11 is a part of the opening / closing operation portion 5 that is bent and moved inwardly by the bending movable cause portion 8, and in this embodiment, a part (base end side) of the bending movable cause portion 8 is also included. The bending portion 11 is included.

即ち、第一半体1の基端部は、開閉操作部5を握持操作若しくは指先摘み操作して閉力を加えてゆくことで撓み可動因部8によって撓み部11が内方に撓み可動し、この撓み部11が内方に撓み可動することによってこの撓み部11に設けた当接部7が内方に移動し、開閉操作部5に加えられた閉力が所定値に達した時点で受部6と当接するように構成している。   That is, the base end portion of the first half 1 is movable by bending the bending portion 11 inward by the bending movable factor portion 8 by applying a closing force by gripping operation or fingertip operation of the opening / closing operation portion 5. When the bending portion 11 is bent inward and moved, the contact portion 7 provided on the bending portion 11 moves inward, and the closing force applied to the opening / closing operation portion 5 reaches a predetermined value. It is comprised so that it may contact | abut with the receiving part 6.

尚、本実施例では、撓み可動因部8を他の部位の厚みよりも薄くすることで撓み部11を撓み可動し易い構成としたが、本実施例と同様の作用効果を発揮する構成であれば上記に限らず適宜採用するものとし、例えば第一半体1の基端部を棒状体で構成した場合は撓み可動因部8の径を他の部位に比べて細くした構成としたり、例えば、撓み可動因部8と他の部位との材質を変えた構成(撓み可動因部8を他の部位よりも剛性の低い材質ものを採用する)としても良い。   In the present embodiment, the bending movable factor 8 is made thinner than the thickness of the other portions, so that the bending portion 11 is easily bent and moved. However, the same effect as the present embodiment is exhibited. If there is, if not limited to the above, it should be adopted as appropriate, for example, when the base end portion of the first half 1 is composed of a rod-shaped body, the diameter of the flexible movable factor portion 8 is made thinner than other parts, For example, it is good also as a structure (The thing of a material whose rigidity is lower than the other site | part is employ | adopted as the material which changes the material of the bending movable factor part 8 and another site | part).

また、この撓み部11に設けた当接部7は、内方に長さを有する形状に形成し、具体的には、後述する第二半体2の基端部が交差枢着部9を支点として開閉動作する際にこの第二半体2の基端部に設けた受部6が前記開閉動作に伴って移動する移動軌跡に沿った形状の帯板状に形成すると共に、受部6との当接面を凹凸形状(本実施例では、鋸歯形状)に形成した構成としている。   Further, the abutting portion 7 provided in the bending portion 11 is formed in a shape having a length inward, and specifically, the base end portion of the second half body 2 described later defines the intersecting and pivoting portion 9. When the opening / closing operation is performed as a fulcrum, the receiving portion 6 provided at the proximal end portion of the second half 2 is formed in a band plate shape along the movement trajectory that moves along with the opening / closing operation. The contact surface is formed in a concavo-convex shape (sawtooth shape in this embodiment).

また、開閉操作部5を構成する第二半体2の基端部は、開閉作業部4で対象物3を挟持した状態で開閉操作部5に加える閉力を増大させた際にこの第二半体2の基端部を内方に撓み可動させる撓み可動因部8と、この撓み可動因部8により撓み可動する撓み部11とから成り、この撓み部11に受部6を設けて、この受部6を撓み部11が内方に撓み可動することによって第一半体1の基端部に設けた当接部7に接近し当接するように構成している。   The base end portion of the second half 2 constituting the opening / closing operation unit 5 is the second end when the closing force applied to the opening / closing operation unit 5 is increased while the object 3 is held by the opening / closing operation unit 4. It consists of a bending movable factor portion 8 that deflects and moves the base end portion of the half body 2 inward, and a bending portion 11 that is deflected and movable by this bending movable factor portion 8, and a receiving portion 6 is provided in this bending portion 11, The receiving portion 6 is configured so as to approach and come into contact with the contact portion 7 provided at the base end portion of the first half 1 by the bending portion 11 being bent inward and movable.

具体的には、撓み可動因部8は、開閉操作部5を構成する第一半体1の基端部の交差枢着部9寄りの位置に設け、また、この第一半体1の基端部の他の部位よりも厚みを薄くして前記他の部位よりも剛性を低くして撓み部11を撓み可動し易い構成とすると共に、内方に凸となる湾曲形状(円弧状)に形成した構成としている。   Specifically, the bending movable factor portion 8 is provided at a position near the cross pivoting portion 9 at the base end portion of the first half 1 constituting the opening / closing operation portion 5, and the base of the first half 1 is also provided. The thickness is made thinner than the other part of the end part and the rigidity is made lower than that of the other part so that the bending part 11 is easily bent and movable, and the curved shape (arc shape) is convex inward. The structure is formed.

また、撓み部11は、この撓み可動因部8によって内方に撓み可動する開閉操作部5の一部であり、本実施例においては、撓み可動因部8の一部(基端側)もこの撓み部11に含む構成としている。   Further, the bending portion 11 is a part of the opening / closing operation portion 5 that is bent and moved inwardly by the bending movable cause portion 8, and in this embodiment, a part (base end side) of the bending movable cause portion 8 is also included. The bending portion 11 is included.

即ち、第二半体2の基端部は、開閉操作部5を握持操作若しくは指先摘み操作して閉力を加えてゆくことで撓み可動因部8によって撓み部11が内方に撓み可動し、この撓み部11が内方に撓み可動することによってこの撓み部11に設けた受部6が内方に移動し、開閉操作部5に加えられた閉力が所定値に達した時点で当接部7と当接するように構成している。   That is, the base end portion of the second half 2 is movable by bending the bending portion 11 inward by the bending movable factor portion 8 by applying a closing force by gripping operation or fingertip operation of the opening / closing operation portion 5. When the bending portion 11 is bent and moved inward, the receiving portion 6 provided on the bending portion 11 moves inward, and when the closing force applied to the opening / closing operation portion 5 reaches a predetermined value. The contact portion 7 is configured to contact.

従って、本実施例は、開閉操作部5に閉力を加えてゆくことで第一半体1、第二半体2の夫々の撓み可動因部8によって夫々の撓み部11が内方に撓み可動し、この第一半体1、第二半体2夫々の撓み部11が内方に撓み可動することによって、当接部7と受部6とが夫々内方に移動し互いに接近して当接するように構成している。   Accordingly, in the present embodiment, by applying a closing force to the opening / closing operation unit 5, the respective bending portions 11 are bent inward by the respective bending movable factor portions 8 of the first half 1 and the second half 2. The first and second halves 1 and 2 are bent and moved inwardly, so that the contact portion 7 and the receiving portion 6 move inward and approach each other. It is comprised so that it may contact | abut.

また、この第二半体2の基端部の撓み部11に設けた受部6は、弾性変形自在に構成しており、具体的には、具体的には、内方に凸となる湾曲形状(円弧状)に形成した弾性板31と、この弾性板31の先端に設けた係止爪28とで構成し、この係止爪28の先端部が当接部7の凹凸形状に形成した当接面の凹部に嵌合して当接するように構成している。   Further, the receiving portion 6 provided in the bending portion 11 at the base end portion of the second half 2 is configured to be elastically deformable, specifically, specifically, a curved shape that is convex inward. The elastic plate 31 is formed in a shape (arc shape) and a locking claw 28 provided at the tip of the elastic plate 31, and the tip of the locking claw 28 is formed in a concavo-convex shape of the contact portion 7. It is configured so as to be fitted into and abutted with the concave portion of the abutting surface.

また更に、受部6は、第二半体2の基端部が交差枢着部9を支点にして開閉動作する際に、第一半体1の基端部に設けた当接部7の当接面に沿って移動すると共に、この当接部7の当接面と受部6の先端部(具体的には、係止爪28の先端部)との離間間隔が一定の離間間隔を維持した状態で移動するように構成している。   Still further, the receiving portion 6 has a contact portion 7 provided at the proximal end portion of the first half body 1 when the proximal end portion of the second half body 2 is opened and closed with the intersection pivoting portion 9 as a fulcrum. While moving along the abutting surface, the spacing between the abutting surface of the abutting portion 7 and the distal end portion of the receiving portion 6 (specifically, the distal end portion of the locking claw 28) has a constant spacing interval. It is configured to move in a maintained state.

本実施例は、このように構成した当接部7と受部6とで間隔調整機構15を構成しており、この間隔調整機構15によって開閉作業部4で挟持する対象物3の大きさが変動しても当接部7と受部6との離間間隔は変動せず一定の離間間隔を維持する構成としている。   In the present embodiment, the abutting portion 7 and the receiving portion 6 configured as described above constitute a distance adjusting mechanism 15, and the size of the object 3 sandwiched by the opening / closing operation portion 4 by the distance adjusting mechanism 15 is small. Even if it fluctuates, the spacing between the contact portion 7 and the receiving portion 6 does not vary, and a constant spacing is maintained.

即ち、この間隔調整機構15によって、厚みが厚い対象物3や径が大きい対象物3を挟持した場合、受部6は、帯板状に形成した当接部7の帯板先端側に位置し、また、厚みが薄い対象物3や径が小さい対象物3を挟持した場合、受部6は、帯板基端側に位置して、対象物3の厚みや径の大小によって当接部7に対する位置が変動するが、この位置が変動しても、当接部7の当接位置までの離間間隔は変動せずに一定の離間間隔を維持して、開閉作業部4に対象物3を挟持した状態で開閉操作部5に閉力を加えてゆきこの開閉操作部5が撓み可動因部8によって撓み可動し閉動する際、常に所定の閉力が加えられた時点で受部6と当接部7とが当接するように構成している。   That is, when the object 3 having a large thickness or the object 3 having a large diameter is sandwiched by the distance adjusting mechanism 15, the receiving part 6 is positioned on the front side of the band plate of the contact part 7 formed in a band plate shape. When the thin object 3 or the small object 3 is sandwiched, the receiving part 6 is positioned on the base side of the band plate, and the contact part 7 depends on the thickness or diameter of the object 3. However, even if this position changes, the separation distance to the contact position of the contact portion 7 does not change, and a constant separation interval is maintained, and the object 3 is placed on the opening / closing operation portion 4. A closing force is applied to the opening / closing operation unit 5 in a sandwiched state, and when the opening / closing operation unit 5 bends and moves by the movable movable factor 8 and closes, the receiving unit 6 The contact portion 7 is configured to contact.

このように構成した本実施例の作用を以下に説明する。   The operation of this embodiment configured as described above will be described below.

図13は、開閉作業部4で対象物3を挟持した状態(対象物3には殆ど挟持力は作用していない)を示している。この開閉作業部4で対象物3を挟持している状態から開閉操作部5を握持操作若しくは指先摘み操作してこの開閉操作部5の力点部13に閉力を増大させながら加えてゆくと、図14に示すように、第一半体1の基端部と第二半体2の基端部の夫々に設けた撓み可動因部8によって撓み部11が内方に撓み可動して開閉操作部5を構成する第一半体1の基端部と第二半体2の基端部の双方が閉動し、この第一半体1の基端部と第二半体2の基端部の双方の閉動に伴い、夫々の基端部に設けた当接部7と受部6とがこの閉動に伴って内方に移動して互いに接近してゆき当接する(具体的には、受部6を構成する係止爪28の先端部が、凹凸形状に形成した当接部7の当接面の凹部33と嵌合状態に当接する)。   FIG. 13 shows a state in which the object 3 is clamped by the opening / closing operation unit 4 (almost no clamping force is applied to the object 3). When the opening / closing operation unit 5 is gripped or gripped by the opening / closing operation unit 4 while holding the object 3 and applied to the power point 13 of the opening / closing operation unit 5 while increasing the closing force. As shown in FIG. 14, the bending portion 11 is deflected inward and opened and closed by the bending movable factor portion 8 provided at each of the proximal end portion of the first half 1 and the proximal end portion of the second half 2. Both the proximal end portion of the first half 1 and the proximal end portion of the second half 2 constituting the operation unit 5 are closed, and the proximal end portion of the first half 1 and the base of the second half 2 are closed. Along with the closing movement of both ends, the abutting portion 7 and the receiving portion 6 provided at the respective base end portions move inward along with the closing movement and come close to each other and come into contact with each other (specifically In other words, the front end portion of the locking claw 28 constituting the receiving portion 6 comes into contact with the concave portion 33 of the abutting surface of the abutting portion 7 formed in a concavo-convex shape in a fitted state).

この当接部7と受部6とが当接した状態となっても、更に開閉操作部5に閉力を増大させながら加えてゆくと、図15に示すように、開閉操作部5の一側の第一半体1の基端部が撓み可動因部8によって内方に撓み可動して閉動し、この第一半体1の基端部の閉動によって第二半体2に設けた受部6が当接部7に押圧され、この受部6が押圧されることで受部6を構成する弾性板31が弾性変形し、この弾性板31の弾性変形によって当接部7と受部6とが当接している当接点10が第二半体2側へ移動し、この当接点10が第二半体2側へ移動することによって開閉操作部5に加える閉力が開閉作業部4に伝達されなくなる。   Even if the contact portion 7 and the receiving portion 6 are in contact with each other, if the closing force is further applied to the opening / closing operation portion 5 as shown in FIG. The base end portion of the first half 1 on the side is bent and moved inward by the bending movable factor 8 and closed, and the second half 2 is provided by the closing movement of the base end portion of the first half 1. The receiving portion 6 is pressed against the contact portion 7, and the elastic plate 31 constituting the receiving portion 6 is elastically deformed when the receiving portion 6 is pressed. The abutment point 10 with which the receiving part 6 abuts moves to the second half 2 side, and the closing force applied to the opening / closing operation part 5 by the abutment point 10 moving to the second half 2 side opens and closes the opening / closing operation. It is not transmitted to the part 4.

よって、当接部7と受部6とが当接した以降、いくら開閉操作部5に閉力を加えていっても開閉作業部4の対象物3を挟持する挟持力は増大せずに略一定の挟持力を維持することとなる。   Therefore, after the contact portion 7 and the receiving portion 6 are in contact with each other, even if a closing force is applied to the opening / closing operation portion 5, the holding force for holding the object 3 of the opening / closing operation portion 4 does not increase and is substantially reduced. A certain clamping force will be maintained.

また、図16は、図13で示す対象物3よりも径の大きな対象物3を挟持した状態を示している。   FIG. 16 shows a state in which the object 3 having a larger diameter than the object 3 shown in FIG. 13 is sandwiched.

この図16と図13を比較すると、当接部7の長さ方向に対する受部6の位置に差があり、径の大きな対象物3を挟持した場合を示す図16の受部6のほうが当接部7の先端側に位置しているが、受部6と当接部7との離間間隔は差が見られない。   16 and FIG. 13 are compared, the receiving portion 6 in FIG. 16 showing the case where the object 3 having a large diameter is sandwiched between the receiving portions 6 with respect to the length direction of the contact portion 7 is more suitable. Although it is located on the distal end side of the contact portion 7, there is no difference in the spacing between the receiving portion 6 and the contact portion 7.

よって、この図16の状態から開閉操作部5を握持操作若しくは指先摘み操作してこの開閉操作部5の力点部13に閉力を増大させながら加えてゆくと、図17に示すように、第一半体1の基端部と第二半体2の基端部の夫々に設けた撓み可動因部8によって撓み部11が内方に撓み可動して開閉操作部5を構成する第一半体1の基端部と第二半体2の基端部の双方が閉動し、この第一半体1の基端部と第二半体2の基端部の双方の閉動に伴い、夫々の基端部に設けた当接部7と受部6とがこの閉動に伴って内方に移動して互いに接近してゆき当接する。   Therefore, if the opening / closing operation unit 5 is gripped or fingertip-picked from the state of FIG. 16 and applied to the power point portion 13 of the opening / closing operation unit 5 while increasing the closing force, as shown in FIG. The first and second operation parts 5 are configured by the bending part 11 being bent inwardly by the bending movable factor 8 provided at each of the base end part of the first half 1 and the base end part of the second half 2. Both the proximal end portion of the half body 1 and the proximal end portion of the second half body 2 are closed, and both the proximal end portion of the first half body 1 and the proximal end portion of the second half body 2 are closed. Along with this, the abutting portion 7 and the receiving portion 6 provided at the respective base end portions move inward along with the closing movement, approach each other, and come into contact with each other.

この図17と径の小さい対象物3を挟持した場合の図14を比較すると、当接部7と受部6との当接位置は変化するが、当接部7と受部6とが当接するまでに閉動する開閉操作部5の移動量(変位量)は略同じであり、即ち、開閉操作部5に加えられた閉力が同じ値で当接部7と受部6とが当接することとなり、よって、開閉作業部4に挟持されている対象物3に作用する挟持力も径の大小に関わらず同等の閉力が作用することとなる。   When comparing FIG. 17 with FIG. 14 when the object 3 having a small diameter is sandwiched, the contact position between the contact portion 7 and the receiving portion 6 changes, but the contact portion 7 and the receiving portion 6 are not in contact with each other. The movement amount (displacement amount) of the opening / closing operation unit 5 that is closed before contact is substantially the same, that is, the closing force applied to the opening / closing operation unit 5 is the same value and the contact unit 7 and the receiving unit 6 are applied. Accordingly, the holding force acting on the object 3 held by the opening / closing operation unit 4 also has the same closing force regardless of the size of the diameter.

このように、本実施例は、開閉作業部4で挟持する対象物3の厚みや径の大きさが変動しても、当接部7と受部6とが当接するまでに加えられる閉力が一定であり、よって、対象物3の厚みや径の大きさに関わらず、常にこの対象物3に作用する最大挟持力は一定の値となる。   As described above, in this embodiment, even when the thickness or diameter of the object 3 held by the opening / closing operation unit 4 varies, the closing force applied until the contact unit 7 and the receiving unit 6 contact each other. Therefore, regardless of the thickness or diameter of the object 3, the maximum clamping force that always acts on the object 3 is a constant value.

その余は、実施例1と同様である。   The rest is the same as in Example 1.

本発明の具体的な実施例について図18〜図20に基づいて説明する。   A specific embodiment of the present invention will be described with reference to FIGS.

本実施例は、実施例3において、開閉作業部4で対象物3を挟持した状態で開閉操作部5に閉力を加えてゆくことによってこの開閉操作部5が内方に撓み可動した際に、この撓み可動の反作用によって開閉操作部5が開動することを防止する開閉操作部開動ロック機構34を備えた場合である。   In the third embodiment, when the opening / closing operation section 5 is bent inward and moved by applying a closing force to the opening / closing operation section 5 with the object 3 held by the opening / closing operation section 4, This is a case where the opening / closing operation portion opening lock mechanism 34 is provided to prevent the opening / closing operation portion 5 from opening due to this bending movable reaction.

具体的には、この開閉操作部開動ロック機構34は、ラチェット機構によって開閉操作部5を構成する第一半体1の基端部、第二半体2の基端部夫々の動作方向を一方向、具体的には、閉動方向に制限するように構成しており、より具体的には、第一半体1の基端部に第一半体側ラチェット歯部35を設け、第二半体2の基端部に第二半体側ラチェット歯部36を設け、この第一半体側ラチェット歯部35と第二半体側ラチェット歯部36とは夫々、開閉操作部5が閉動し得る移動量に応じた長さ(例えば、前記移動量と同等若しくは稍長めの長さ)を有し、開閉操作部5の閉動時の閉動動作軌跡に沿った形状に形成した構成としている。   Specifically, the opening / closing operation portion opening / closing lock mechanism 34 controls the operation directions of the proximal end portion of the first half 1 and the proximal end portion of the second half 2 constituting the opening / closing operation portion 5 by a ratchet mechanism. The first half body side ratchet tooth portion 35 is provided at the proximal end portion of the first half body 1, and more specifically, the second half half tooth portion 35 is provided. A second half-side ratchet tooth portion 36 is provided at the proximal end of the body 2, and the first half-side ratchet tooth portion 35 and the second half-side ratchet tooth portion 36 move so that the opening / closing operation portion 5 can be closed. It has a length corresponding to the amount (for example, a length equal to or longer than the movement amount) and is formed in a shape along the closing movement locus when the opening / closing operation unit 5 is closed.

尚、第一半体側ラチェット歯部35、第二半体側ラチェット歯部36の形状は、上述の構成に限らず、例えば、第一半体側ラチェット歯部35、第二半体側ラチェット歯部36の一方の長さを短く(ラチェット歯の数を少なく)した形状に構成しても良い。   Note that the shapes of the first half-side ratchet tooth portion 35 and the second half-side ratchet tooth portion 36 are not limited to the above-described configurations. For example, the first half-side ratchet tooth portion 35 and the second half-side ratchet tooth portion 36 You may comprise in the shape where one length was shortened (the number of ratchet teeth was decreased).

本実施例は上述のように構成したので、開閉操作部5に加えている閉力を弱めても、開閉操作部5が撓みの反作用(復帰弾性力)によって開動せず、よって、握持操作や指先摘み操作をし続けなくても開閉操作部に一定の閉力が加えられている状態を維持することができる実用性に優れた開閉作業具となる。   Since the present embodiment is configured as described above, even if the closing force applied to the opening / closing operation unit 5 is weakened, the opening / closing operation unit 5 does not open due to the reaction of bending (returning elastic force). Even if it does not continue the fingertip picking operation, the opening / closing operation tool is excellent in practicality and can maintain a state in which a constant closing force is applied to the opening / closing operation unit.

その余は、実施例3と同様である。   The rest is the same as in Example 3.

尚、本発明は、実施例1〜4に限られるものではなく、各構成要件の具体的構成は適宜設計し得るものである。   In addition, this invention is not restricted to Examples 1-4, The concrete structure of each component can be designed suitably.

1 第一半体
2 第二半体
3 対象物
4 開閉作業部
5 開閉操作部
6 受部
7 当接部
8 撓み可動因部
9 交差枢着部
10 当接点
11 撓み部
12 力伝達比変動機構
15 間隔調整機構
34 開閉操作部開動ロック機構
DESCRIPTION OF SYMBOLS 1 1st half body 2 2nd half body 3 Target object 4 Opening / closing operation part 5 Opening / closing operation part 6 Receiving part 7 Contact part 8 Deflection movable factor part 9 Crossing attachment part
10 Contact
11 flexure
12 Force transmission ratio fluctuation mechanism
15 Spacing adjustment mechanism
34 Opening / closing operation part opening lock mechanism

Claims (7)

第一半体と第二半体とを交差枢着して、この対向する第一半体と第二半体との先端部を挟持部若しくは切断部とする開閉作業部とし、前記対向する第一半体と第二半体との基端部を開閉操作部として、この開閉操作部に閉じ方向となる内方に押圧する閉力を加えることで前記開閉作業部が閉動して対象物を挟持する若しくは切断する開閉作業具において、前記開閉操作部に閉力を加えて前記開閉作業部を閉動させ前記対象物を挟持若しくは切断する際、前記対象物を挟持した状態で前記開閉操作部に加える閉力を増大させるに従い前記開閉操作部が内方に撓み可動するように構成し、この開閉操作部が内方に撓み可動することによって当接する当接部と受部とを備えると共に、前記対象物を挟持した際の前記当接部と前記受部との離間間隔を広狭自在に調整する、若しくは、前記対象物を挟持した際の前記当接部と前記受部との離間間隔が一定の離間間隔となるようにする間隔調整機構を備えた構成とし、この間隔調整機構によって所望の離間間隔に調整した前記当接部と前記受部とが当接した状態で前記開閉操作部に加える閉力を増大させてゆくと、この開閉操作部は更に内方に可動若しくは撓み可動することで閉動操作可能であるが、この開閉操作部に加えた閉力を挟持力若しくは切断力として前記開閉作業部に伝達する伝達比は、前記当接部と受部との当接前の伝達比に比して減じるように構成したことを特徴とする開閉作業具。   The first half and the second half are pivotally attached to each other, and an opening / closing operation part having a tip part of the opposing first half and the second half as a clamping part or a cutting part is provided. Using the base end of the first half and the second half as the opening / closing operation part, applying the closing force that presses inward in the closing direction to the opening / closing operation part causes the opening / closing operation part to close and the object In the opening / closing operation tool for holding or cutting the object, when the opening / closing operation unit is closed by applying a closing force to the opening / closing operation unit to hold or cut the object, the opening / closing operation is performed with the object being held. The opening / closing operation portion is configured to bend and move inward as the closing force applied to the portion increases, and includes a contact portion and a receiving portion that come into contact when the opening / closing operation portion bends and moves inward. The spacing between the contact part and the receiving part when the object is clamped Adjusting the distance narrowly, or having a distance adjusting mechanism that keeps the distance between the contact part and the receiving part when the object is clamped to be a constant distance. When the closing force applied to the opening / closing operation unit is increased in a state where the contact portion adjusted to a desired separation interval by the mechanism and the receiving portion are in contact with each other, the opening / closing operation portion is further moved inward or The closing operation can be performed by bending and moving, but the transmission ratio for transmitting the closing force applied to the opening / closing operation unit to the opening / closing operation unit as a clamping force or a cutting force is the contact ratio between the contact portion and the receiving portion. An opening / closing tool characterized by being configured to reduce the transmission ratio before contact. 前記当接部を前記第一半体の基端部と前記第二半体の基端部とのいずれか一方若しくは双方に設け、この当接部と当接する前記受部を前記第一半体の基端部と前記第二半体の基端部との間に配設した前記間隔調整機構に設け、前記受部は、前記間隔調整機構に可動自在に設けると共に、この受部を可動させることで前記当接部と前記受部との離間間隔を広狭自在に調整し得る形状に構成したことを特徴とする請求項1記載の開閉作業具。   The contact portion is provided on one or both of the base end portion of the first half and the base end portion of the second half, and the receiving portion that contacts the contact portion is the first half. Provided in the distance adjusting mechanism disposed between the base end portion of the second half and the base end portion of the second half, and the receiving portion is movably provided in the interval adjusting mechanism and moves the receiving portion. The opening / closing work tool according to claim 1, wherein the opening and closing work tool is configured to be capable of adjusting a distance between the contact portion and the receiving portion in a wide and narrow manner. 前記当接部を前記第一半体の基端部に設け、前記受部を前記第二半体の基端部に設け、前記第二半体に前記間隔調整機構を設けて、この間隔調整機構によって前記受部が可動して前記当接部と前記受部との離間間隔を広狭自在に調整し得る構成としたことを特徴とする請求項1記載の開閉作業具。   The abutting portion is provided at the proximal end portion of the first half body, the receiving portion is provided at the proximal end portion of the second half body, and the interval adjusting mechanism is provided in the second half body to adjust the interval. The opening / closing work tool according to claim 1, wherein the receiving portion is movable by a mechanism so that a distance between the contact portion and the receiving portion can be adjusted freely. 前記当接部を前記第一半体の基端部に設け、前記受部を前記第二半体の基端部に設け、前記当接部と前記受部との一方を、内方に長さを有する形状に形成すると共に、前記開閉作業部で挟持する対象物の大きさによって前記受部が当接する位置が変動するが前記開閉作業部で前記対象物を挟持した状態の前記当接部と前記受部との離間間隔は変動しない形状に構成して前記間隔調整機構を構成したことを特徴とする請求項1記載の開閉作業具。   The contact portion is provided at the proximal end portion of the first half, the receiving portion is provided at the proximal end portion of the second half, and one of the contact portion and the receiving portion is elongated inward. The contact portion is formed in a shape having a height and the position where the receiving portion abuts varies depending on the size of the object sandwiched by the opening / closing operation portion, but the object is sandwiched by the opening / closing operation portion. The opening / closing work tool according to claim 1, wherein the distance adjusting mechanism is configured to have a shape in which a separation distance between the receiving portion and the receiving portion does not vary. 前記対象物を挟持した状態で前記開閉操作部に加える閉力を増大させた際に前記開閉操作部を内方に撓み可動させる撓み可動因部と、この開閉操作部の内方への撓み可動に伴って内方へ移動する前記当接部とこの当接部が当接する受部とを備えると共にこの当接部と受部との当接点が前記開閉操作部を構成する前記第一半体の基端部と前記第二半体の基端部の少なくとも一方の閉動時の動作支点となるように構成した力伝達比変動機構を具備し、前記当接部が前記受部に当接した状態で閉力を増大させてゆくと、前記開閉操作部を構成する前記第一半体の基端部と前記第二半体の基端部との少なくとも一方の動作支点が前記第一半体と前記第二半体の交差枢着部から前記当接点に変動し、この動作支点の変動により前記増大させた閉力を挟持力若しくは切断力として前記開閉作業部に伝達する伝達比が変化するように構成したことを特徴とする請求項1〜4のいずれか1項に記載の開閉作業具。   When the closing force applied to the opening / closing operation unit is increased with the object sandwiched, a bending movable factor portion that causes the opening / closing operation unit to bend and move inward, and the opening / closing operation unit to be bent inward. The first half that includes the contact portion that moves inward along with the receiving portion that contacts the contact portion, and a contact point between the contact portion and the receiving portion constitutes the opening / closing operation portion. A force transmission ratio variation mechanism configured to serve as an operation fulcrum at the time of closing at least one of the proximal end portion of the second half and the proximal end portion of the second half body, and the contact portion contacts the receiving portion When the closing force is increased in this state, at least one operation fulcrum of the base end portion of the first half and the base end portion of the second half constituting the opening / closing operation unit is the first half. Fluctuates from the intersection of the body and the second half to the abutment point, and the increased closing force is clamped by the variation of the operating fulcrum. Or closing the work tool according to claim 1, characterized in that the transmission ratio for transmitting the opening and closing work unit is configured to vary the cutting forces. 前記開閉操作部に撓み可動因部によって撓み可動する撓み部を設け、この撓み部に前記当接部を設けて、前記対象物を前記開閉作業部で挟持した状態で前記開閉操作部に閉力を増大させながら加えてゆくと、前記撓み可動因部によって前記撓み部が内方に撓み可動して、前記当接部が前記受部に接近して当接するように構成したことを特徴とする請求項1〜5のいずれか1項に記載の開閉作業具。   The opening / closing operation portion is provided with a bending portion that is bent and moved by a bending movable factor portion, and the contact portion is provided at the bending portion, and the closing force is applied to the opening / closing operation portion while the object is sandwiched by the opening / closing operation portion. When the force is added while increasing, the bending portion is bent and moved inward by the bending movable cause portion, and the contact portion comes close to and contacts the receiving portion. The opening / closing work tool of any one of Claims 1-5. 前記開閉操作部の撓み部が撓み可動した際に、この撓み可動の反作用によって前記開閉操作部が開動することを防止する開閉操作部開動ロック機構を備えたことを特徴とする請求項1〜6のいずれか1項に記載の開閉作業具。   7. An opening / closing operation portion opening lock mechanism for preventing the opening / closing operation portion from opening due to a reaction of the bending movement when the bending portion of the opening / closing operation portion is bent and movable. The opening / closing work tool of any one of these.
JP2012062248A 2012-03-19 2012-03-19 Opening / closing tool Expired - Fee Related JP5438157B2 (en)

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