JP2007309513A - Fixing structure and fixing method - Google Patents

Fixing structure and fixing method Download PDF

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JP2007309513A
JP2007309513A JP2007102097A JP2007102097A JP2007309513A JP 2007309513 A JP2007309513 A JP 2007309513A JP 2007102097 A JP2007102097 A JP 2007102097A JP 2007102097 A JP2007102097 A JP 2007102097A JP 2007309513 A JP2007309513 A JP 2007309513A
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hole
engagement hole
cylindrical
screw
fixing
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Masanori Mochizuki
正典 望月
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ISEL Co Ltd
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ISEL Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing structure and a fixing method capable of improving work efficiency by facilitating mutual positioning when fixing at least two members. <P>SOLUTION: A first member has, on a joint face, a threaded hole and a first engaging hole coaxial with the threaded hole and having a predetermined depth with a different axial diameter. A second member has, on a joint face, a through hole and a second engaging hole coaxial with the through hole and having a predetermined depth with a different axial diameter. A screw has a head with an axial diameter larger than the axial diameter of the through hole on one side and a thread part on the other side. A cylindrical member has an outer diameter that can be engaged with the first engaging hole and the second engaging hole, and an inner diameter larger than the outer diameter of the thread part of the screw. In a state of the cylindrical member being engaged with the first engaging hole and the second engaging hole, the joint face of the first member and the joint face of the second member are arranged facing each other, and the screw is mounted passing the through hole and the cylindrical member and screwed into the threaded hole to fix the first member and the second member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、固定構造および固定方法に関し、より特定的には、複数の部材の接合面を接面して固定する固定構造および固定方法に関する。   The present invention relates to a fixing structure and a fixing method, and more particularly, to a fixing structure and a fixing method for fixing a joint surface of a plurality of members in contact with each other.

従来、一般的に複数の部材の接合面を接面して固定するとき、一方の部材の接合面に複数のねじ穴を形成し、他方の部材に当該ねじ穴と対応する位置に複数の貫通穴を形成する。そして、それぞれの部材の接合面を互いに当接させた状態で、ボルトやねじを上記貫通穴に貫装させて上記ねじ穴と螺合させることによって、部材を固定している。このような固定作業の際、一方の部材のねじ穴に他方の部材の貫通穴が合うように互いの部材位置を調整した後、何れか１つの貫通穴にねじやボルトを貫装して対応するねじ穴に仮締め状態で螺合する。また、他の貫通穴およびねじ穴の組に対しても、同様に互いの位置関係を調整しながらねじやボルトを仮締め状態で螺合していく。そして、全ての貫通穴とねじ穴との組に対するねじやボルトの仮締めが終わった後、当該仮締め状態のねじやボルトを全て本締めして部材の固定が行われる。   Conventionally, in general, when fixing the joint surfaces of a plurality of members in contact with each other, a plurality of screw holes are formed in the joint surface of one member, and a plurality of through holes are formed in positions corresponding to the screw holes in the other member. Create a hole. Then, in a state where the joint surfaces of the respective members are in contact with each other, bolts and screws are inserted into the through holes and screwed into the screw holes to fix the members. In such a fixing operation, after adjusting the position of each member so that the screw hole of one member is aligned with the screw hole of the other member, screws or bolts are inserted into any one of the through holes. Screwed into the screw hole to be temporarily tightened. In addition, screws and bolts are also screwed in a temporarily tightened state while adjusting the mutual positional relationship with respect to other through-hole and screw-hole groups. Then, after the screws and bolts are temporarily tightened for all the sets of through holes and screw holes, all the screws and bolts in the temporarily tightened state are finally tightened to fix the members.

一方、複数の部材を固定する構造において、ノックピンをピン孔に嵌入した後、ボルトを螺合する技術が開示されている（例えば、特許文献１参照）。上記特許文献１で開示された位置決め構造では、上述した貫通孔およびねじ穴以外の部位において、一方の部材の接合面にノックピンを設け、他方の部材の接合面に当該ノックピンに対応するピン孔が形成されている。そして、ノックピンをピン孔に嵌入しながら部材の接合面を互いに当接させて位置決めした後、各貫通孔とねじ穴の組に対してボルトを螺合していく。   On the other hand, in a structure for fixing a plurality of members, a technique for screwing a bolt after inserting a knock pin into a pin hole is disclosed (for example, see Patent Document 1). In the positioning structure disclosed in Patent Document 1, a knock pin is provided on the joint surface of one member at a portion other than the above-described through hole and screw hole, and a pin hole corresponding to the knock pin is provided on the joint surface of the other member. Is formed. Then, after the dowel pins are fitted into the pin holes and the joint surfaces of the members are brought into contact with each other for positioning, the bolts are screwed into the pairs of the through holes and the screw holes.

また、複数の部材を固定する構造において、突出片をスロット（開口穴）に嵌合させてプレートを接合する技術が開示されている（例えば、特許文献２参照）。上記特許文献２で開示されたプレート構造体では、一方のプレートの端部に突出片が設けられており、他方のプレートに当該突出片と嵌合するためのスロット状の開口穴が形成されている。そして、上記突出片と開口穴とを嵌合させることによって、プレート同士を接合していく。
特開２００６−１７１７５号公報 特開平７−４３９６９号公報 Moreover, in a structure for fixing a plurality of members, a technique is disclosed in which a plate is joined by fitting a protruding piece into a slot (opening hole) (see, for example, Patent Document 2). In the plate structure disclosed in Patent Document 2, a protruding piece is provided at the end of one plate, and a slot-like opening hole for fitting with the protruding piece is formed in the other plate. Yes. Then, the plates are joined together by fitting the protruding piece and the opening hole.
JP 2006-17175 A JP 7-43969 A

しかしながら、一般的に用いられている上述した固定構造は、貫通穴およびねじ穴の何れかの組に対してねじやボルトを仮締めするとき、他の貫通穴およびねじ穴の組における位置関係にずれが発生することがあり、再度位置調整しながら仮締め作業を繰り返さなければならないため、作業効率が非常に悪い。また、接合面が縦方向に立設された一方の部材に対して、重量のある他方の部材を固定する場合、互いの位置関係を調整しながらねじやボルトを仮締めしていく作業がさらに困難となる。また、重量による作業性の悪化を軽減するために、部材を台上等に載置して互いの接合面を接面させた場合、部材が平板等の接合面の面積が非常に大きな部材であると広大な作業スペースが必要となる。   However, the above-described fixing structure that is generally used, when temporarily tightening a screw or a bolt with respect to any set of through holes and screw holes, is in a positional relationship with other sets of through holes and screw holes. In some cases, the displacement may occur, and the temporary fastening operation must be repeated while adjusting the position again, so that the work efficiency is very poor. In addition, when fixing the other heavy member to one member with the joint surface standing in the vertical direction, the work of temporarily tightening the screw or bolt while adjusting the mutual positional relationship is further performed. It becomes difficult. In addition, in order to reduce the deterioration of workability due to weight, when the members are placed on a table or the like and the joint surfaces are brought into contact with each other, the member is a member having a very large joint surface area such as a flat plate. If so, a large work space is required.

また、上記特許文献１で開示された位置決め構造では、貫通孔およびねじ穴以外の部位にノックピンおよび対応するピン孔が形成されるため、貫通孔およびねじ穴に対するノックピンおよびピン孔の位置精度が重要となる。例えば、ノックピンおよびピン孔の位置精度が悪い場合、ノックピンをピン孔に嵌合させても貫通孔とねじ穴とが合わないこともある。したがって、ノックピンおよびピン孔の位置精度を確保するために、加工コストが高くなる。   Further, in the positioning structure disclosed in Patent Document 1, since the knock pin and the corresponding pin hole are formed in a portion other than the through hole and the screw hole, the positional accuracy of the knock pin and the pin hole with respect to the through hole and the screw hole is important. It becomes. For example, when the position accuracy of the knock pin and the pin hole is poor, the through hole and the screw hole may not match even if the knock pin is fitted into the pin hole. Therefore, in order to ensure the positional accuracy of the knock pin and the pin hole, the processing cost increases.

さらに、ねじやボルトで螺合して非常に重量を有する部材同士を接合させる場合、長期間の負荷や振動が加わることによって、ねじやボルトの締め付けトルクが緩んで固定力が低下したり、ねじやボルトが破断したりすることも考えられる。したがって、非常に重量を有する部材を固定する場合には、大型のボルトやねじを使用しなければならないため、接合部分の美観を損ねることがある。また、高価なボルトやねじを使用して部材固定時の締め付けトルクを上げた場合、ねじ穴を構成する部材がその締め付けトルクに耐えられる素材でなければならず、それぞれの材料面でのコストが上がることもある。   Furthermore, when screws and bolts are screwed together to join together very heavy members, the tightening torque of the screws and bolts may be loosened due to long-term loads and vibrations, and the fixing force may be reduced. Or bolts may break. Therefore, when fixing a very heavy member, it is necessary to use a large bolt or screw, which may impair the appearance of the joint. In addition, when the tightening torque when fixing a member is increased using expensive bolts or screws, the members constituting the screw hole must be a material that can withstand the tightening torque, and the cost of each material is reduced. Sometimes it goes up.

また、上記特許文献２で開示されたプレート構造体は、プレート面とプレート端部とを接合する構造に適しており、プレート面同士の接合には適していない。例えば、当該プレート構造体をプレート面同士の接合に適用した場合、接合面間に突出片が配置される空間が必要となり、構造が複雑となる。また、非常に重量を有する部材同士を接合させる場合、突出片に大きな負荷が加わるため、強固な突出片が必要となったり、初期的な固定は満足できても長期間の負荷や振動によって固定力が弱まったりしまう。   Moreover, the plate structure disclosed in Patent Document 2 is suitable for a structure in which the plate surface and the plate end are joined, and is not suitable for joining the plate surfaces. For example, when the plate structure is applied to the bonding between the plate surfaces, a space in which the protruding piece is disposed between the bonding surfaces is required, and the structure becomes complicated. Also, when joining very heavy members, a large load is applied to the protruding pieces, so a strong protruding piece is required, or even if initial fixation is satisfactory, it is fixed by long-term load or vibration Power is weakened.

それ故に、本発明の目的は、少なくとも２つの部材を固定するときに互いの位置決めを容易にして作業効率を向上させる固定構造および固定方法を提供することである。   Therefore, an object of the present invention is to provide a fixing structure and a fixing method that facilitate the positioning of each other when fixing at least two members and improve the working efficiency.

上記のような目的を達成するために、本発明は、以下に示すような特徴を有している。
第１の発明は、少なくとも２つの部材を固定する固定構造である。固定構造は、第１部材、第２部材、ねじ、および筒状部材を備える。第１部材は、ねじ穴と、そのねじ穴と同軸で軸径が異なる所定深さの第１係合穴とが接合面に形成される。第２部材は、貫通穴と、その貫通穴と同軸で軸径が異なる所定深さの第２係合穴とが接合面に形成される。ねじは、一方側に貫通穴の軸径より大きな軸径の頭部を有し、他方側にねじ部を有する。筒状部材は、第１係合穴および第２係合穴と係合可能な外径を有し、ねじのねじ部外径より大きい内径を有する。筒状部材が第１係合穴と第２係合穴とに係合した状態で第１部材の接合面と第２部材の接合面とを対向させて配置し、ねじが貫通穴および筒状部材内に貫装されてねじ穴と螺合することによって第１部材と第２部材とが固定される。 In order to achieve the above object, the present invention has the following features.
The first invention is a fixing structure for fixing at least two members. The fixing structure includes a first member, a second member, a screw, and a tubular member. In the first member, a screw hole and a first engagement hole having a predetermined depth that is coaxial with the screw hole and has a different shaft diameter are formed on the joint surface. In the second member, a through hole and a second engagement hole having a predetermined depth that is coaxial with the through hole and has a different shaft diameter are formed on the joint surface. The screw has a head having a shaft diameter larger than the shaft diameter of the through hole on one side, and a threaded portion on the other side. The cylindrical member has an outer diameter that can be engaged with the first engagement hole and the second engagement hole, and has an inner diameter that is larger than the outer diameter of the screw portion of the screw. With the cylindrical member engaged with the first engagement hole and the second engagement hole, the bonding surface of the first member and the bonding surface of the second member are arranged to face each other, and the screw is formed in the through hole and the cylindrical shape. The first member and the second member are fixed by being inserted into the member and screwed into the screw hole.

第２の発明は、上記第１の発明において、筒状部材は、第１係合穴に締まりばめで係合する。   In a second aspect based on the first aspect, the tubular member is engaged with the first engagement hole with an interference fit.

第３の発明は、上記第１の発明において、筒状部材は、円筒部を円筒軸方向に分割する１つの隙間が形成され、その隙間が縮む方向に弾性変形可能である。筒状部材の自由外径は、第１係合穴の内径より大きい。筒状部材の隙間と対向する端部同士を当接させたその筒状部材の外径は、第１係合穴および第２係合穴の内径より小さい。   According to a third aspect, in the first aspect, the cylindrical member is formed with one gap that divides the cylindrical portion in the direction of the cylindrical axis, and is elastically deformable in a direction in which the gap is reduced. The free outer diameter of the cylindrical member is larger than the inner diameter of the first engagement hole. The outer diameter of the cylindrical member which contact | abutted the edge parts which oppose the clearance gap between cylindrical members is smaller than the internal diameter of a 1st engagement hole and a 2nd engagement hole.

第４の発明は、上記第１の発明において、筒状部材は、円筒側面両端部にテーパ面を有する。   In a fourth aspect based on the first aspect, the cylindrical member has tapered surfaces at both ends of the cylindrical side surface.

第５の発明は、上記第１の発明において、筒状部材は、第１係合穴と係合する長さが第２係合穴と係合する長さより長い。   In a fifth aspect based on the first aspect, the length of the tubular member engaged with the first engagement hole is longer than the length engaged with the second engagement hole.

第６の発明は、上記第１の発明において、第３部材を、さらに備える。第３部材は、筒状部材と係合可能な内径で両主面間を貫通する第３係合穴が形成され、第１部材と第２部材との間に挟装される。筒状部材が第１係合穴と第３係合穴と第２係合穴とに係合した状態で、第１部材の接合面と第３部材の一方主面とを接面し、かつ、第２部材の接合面と第３部材の他方主面とを接面することによって、第１部材の接合面と第２部材の接合面とを対向させて配置する。そして、ねじが貫通穴および筒状部材内に貫装されてねじ穴と螺合することによって、第１部材と第２部材とが第３部材を挟装した状態で固定される。   In a sixth aspect based on the first aspect, a sixth member is further provided. The third member is formed with a third engagement hole penetrating between both main surfaces with an inner diameter engageable with the cylindrical member, and is sandwiched between the first member and the second member. With the tubular member engaged with the first engagement hole, the third engagement hole, and the second engagement hole, the joining surface of the first member and one main surface of the third member are in contact with each other; and By arranging the joining surface of the second member and the other main surface of the third member to contact each other, the joining surface of the first member and the joining surface of the second member are arranged to face each other. And a screw is penetrated in a through-hole and a cylindrical member, and a 1st member and a 2nd member are fixed in the state which clamped the 3rd member by screwing together with a screw hole.

第７の発明は、少なくとも２つの部材を固定する固定方法である。固定方法は、一方端部を係合する工程、接合面とを接面させる工程、および固定する工程を含む。一方端部を係合する工程は、ねじ穴と、そのねじ穴と同軸で軸径が異なる所定深さの第１係合穴とが接合面に形成された第１部材に対して、その第１係合穴に筒状部材の一方端部を係合する。接合面とを接面させる工程は、貫通穴と、その貫通穴と同軸で軸径が異なる所定深さの第２係合穴とが接合面に形成された第２部材に対して、筒状部材の他方端部とその第２係合穴とを係合させて第１部材の接合面とその第２部材の接合面とを対向させて配置する。固定する工程は、貫通穴の軸径より大きな軸径の頭部とねじ部とを有するねじを、貫通穴および筒状部材内に貫装してねじ穴と螺合させて第１部材と第２部材とを固定する。   The seventh invention is a fixing method for fixing at least two members. The fixing method includes a step of engaging one end, a step of bringing the joint surface into contact, and a step of fixing. On the other hand, the step of engaging the end portion is the first step in which a screw hole and a first engagement hole having a predetermined depth that is coaxial with the screw hole and has a different shaft diameter are formed on the joint surface. One end of the cylindrical member is engaged with one engagement hole. The step of bringing the joint surface into contact with each other includes a cylindrical shape with respect to the second member in which the through hole and the second engagement hole having a predetermined depth that is coaxial with the through hole and has a different shaft diameter are formed on the joint surface. The other end portion of the member and the second engagement hole are engaged with each other, and the joining surface of the first member and the joining surface of the second member are opposed to each other. In the fixing step, a screw having a head having a shaft diameter larger than the shaft diameter of the through hole and a threaded portion is inserted into the through hole and the cylindrical member, and is screwed into the screw hole. The two members are fixed.

第８の発明は、上記第７の発明において、一方端部を係合する工程では、筒状部材と第１係合穴とが締まりばめで係合される。   In an eighth aspect based on the seventh aspect, in the step of engaging one end, the tubular member and the first engagement hole are engaged by an interference fit.

第９の発明は、上記第７の発明において、筒状部材は、円筒部を円筒軸方向に分割する１つの隙間が形成され、その隙間が縮む方向に弾性変形可能である。筒状部材の自由外径は、第１係合穴の内径より大きい。筒状部材の隙間と対向する端部同士を当接させたその筒状部材の外径は、第１係合穴および第２係合穴の内径より小さい。一方端部を係合する工程では、筒状部材の隙間が縮む方向に縮めてその筒状部材が第１係合穴に挿入して係合される。   In a ninth aspect based on the seventh aspect, the cylindrical member is formed with one gap that divides the cylindrical portion in the cylindrical axis direction, and is elastically deformable in a direction in which the gap is reduced. The free outer diameter of the cylindrical member is larger than the inner diameter of the first engagement hole. The outer diameter of the cylindrical member which contact | abutted the edge parts which oppose the clearance gap between cylindrical members is smaller than the internal diameter of a 1st engagement hole and a 2nd engagement hole. On the other hand, in the step of engaging the end portions, the cylindrical member is contracted in the direction of contraction, and the cylindrical member is inserted into the first engagement hole and engaged.

第１０の発明は、上記第７の発明において、一方端部を係合する工程では、筒状部材の円筒側面両端部に形成されたテーパ面に沿って第１係合穴に筒状部材の一方端部を係合させる。接面させる工程では、筒状部材のテーパ面に沿って第２係合穴に筒状部材の他方端部を係合させる。   In a tenth aspect based on the seventh aspect, in the step of engaging the one end portion, the cylindrical member is inserted into the first engagement hole along the tapered surfaces formed at both ends of the cylindrical side surface of the cylindrical member. One end is engaged. In the contacting step, the other end of the cylindrical member is engaged with the second engagement hole along the tapered surface of the cylindrical member.

第１１の発明は、上記第７の発明において、一方端部を係合する工程において筒状部材と第１係合穴とを係合させる長さは、第１部材の接合面と第２部材の接合面とを接面させる工程においてその筒状部材と第２係合穴とを係合させる長さより長い。   In an eleventh aspect based on the seventh aspect, the length for engaging the tubular member and the first engagement hole in the step of engaging the one end is determined by the joining surface of the first member and the second member. Longer than the length of engaging the cylindrical member and the second engagement hole in the step of contacting the joint surface.

第１２の発明は、上記第７の発明において、対向させて配置する工程では、筒状部材と係合可能な内径で両主面間を貫通する第３係合穴が形成されて第１部材と第２部材との間に挟装される第３部材に対して、筒状部材の中間部と当該第３係合穴とを係合させた状態で、第１部材の接合面と当該第３部材の一方主面とを接面し、かつ、第２部材の接合面と当該第３部材の他方主面とを接面することによって、第１部材の接合面と第２部材の接合面とが対向して配置される。固定する工程では、ねじを貫通穴および筒状部材内に貫装してねじ穴と螺合させて、第１部材と第２部材とが第３部材を挟装した状態で固定される。   In a twelfth aspect based on the seventh aspect, in the step of disposing the first member, a third engagement hole penetrating between both main surfaces with an inner diameter engageable with the cylindrical member is formed. And the third member sandwiched between the first member and the second member, with the intermediate portion of the cylindrical member and the third engagement hole engaged with each other, the joint surface of the first member and the second member By contacting one main surface of the three members and contacting the bonding surface of the second member and the other main surface of the third member, the bonding surface of the first member and the bonding surface of the second member Are arranged opposite to each other. In the fixing step, the screw is inserted into the through hole and the cylindrical member and screwed into the screw hole, and the first member and the second member are fixed with the third member sandwiched therebetween.

第１３の発明は、少なくとも２つの部材を固定する固定方法である。固定方法は、一方端部を係合する工程、接合面とを接面させる工程、および固定する工程を含む。一方端部を係合する工程は、貫通穴と、その貫通穴と同軸で軸径が異なる所定深さの第１係合穴とが接合面に形成された第１部材に対して、その第１係合穴に筒状部材の一方端部を係合する。接合面とを接面させる工程は、ねじ穴と、そのねじ穴と同軸で軸径が異なる所定深さの第２係合穴とが接合面に形成された第２部材に対して、筒状部材の他方端部とその第２係合穴とを係合させて第１部材の接合面とその第２部材の接合面とを対向させて配置する。固定する工程は、貫通穴の軸径より大きな軸径の頭部とねじ部とを有するねじを、貫通穴および筒状部材内に貫装してねじ穴と螺合させて第１部材と第２部材とを固定する。   A thirteenth invention is a fixing method for fixing at least two members. The fixing method includes a step of engaging one end, a step of bringing the joint surface into contact, and a step of fixing. On the other hand, the step of engaging the end portion is performed on the first member in which a through hole and a first engagement hole having a predetermined depth that is coaxial with the through hole and has a different shaft diameter are formed on the joint surface. One end of the cylindrical member is engaged with one engagement hole. The step of bringing the joint surface into contact with each other is a cylindrical shape with respect to a second member in which a screw hole and a second engagement hole having a predetermined depth that is coaxial with the screw hole and has a different shaft diameter are formed on the joint surface. The other end portion of the member and the second engagement hole are engaged with each other, and the joining surface of the first member and the joining surface of the second member are opposed to each other. In the fixing step, a screw having a head having a shaft diameter larger than the shaft diameter of the through hole and a threaded portion is inserted into the through hole and the cylindrical member, and is screwed into the screw hole. The two members are fixed.

上記第１の発明によれば、筒状部材を第１係合穴および第２係合穴と係合させて第１部材および第２部材を直接的に接面または他の部材を介して接面することによって、第１部材に設けられたねじ穴と第２部材に設けられた貫通穴とが、ねじを螺合することに適した位置関係に配置されて固定される。したがって、筒状部材を第１係合穴および第２係合穴と係合させた状態でねじ穴にねじを螺合することによって、第１部材および第２部材を位置決めして固定する作業が容易となる。   According to the first aspect of the invention, the cylindrical member is engaged with the first engagement hole and the second engagement hole, and the first member and the second member are directly contacted via the contact surface or another member. By facing, the screw hole provided in the first member and the through hole provided in the second member are arranged and fixed in a positional relationship suitable for screwing the screw. Therefore, the operation of positioning and fixing the first member and the second member by screwing the screws into the screw holes in a state where the cylindrical member is engaged with the first engagement hole and the second engagement hole. It becomes easy.

上記第２の発明によれば、筒状部材は、第１係合穴に対して締まりばめの状態で係合するため、振動等によって作業途中で容易に脱落することがない。   According to the second aspect of the invention, the cylindrical member is engaged with the first engagement hole in an interference fit state, so that it does not easily fall off during the operation due to vibration or the like.

上記第３の発明によれば、筒状部材を第１係合穴へ挿着する作業では、隙間が縮む方向に筒状部材を縮めて第１係合穴に挿着することができ、当該作業が容易となり、筒状部材と第１係合穴との間のかじりも防止できる。また、筒状部材自身が自由外径に戻ろうとする弾性力（復元力）によって筒状部材が第１係合穴内に支持されるため、第１係合穴の加工コストを低減できる。   According to the third aspect of the invention, in the operation of inserting the cylindrical member into the first engagement hole, the cylindrical member can be reduced in the direction in which the gap is reduced and inserted into the first engagement hole. Work becomes easy and it is also possible to prevent galling between the tubular member and the first engagement hole. Moreover, since the cylindrical member is supported in the first engagement hole by the elastic force (restoring force) that the cylindrical member itself tries to return to the free outer diameter, the processing cost of the first engagement hole can be reduced.

上記第４の発明によれば、筒状部材のテーパ面に沿って筒状部材を第１係合穴へ挿着することが可能となるため、作業が容易となり、筒状部材と第１係合穴との間のかじりも防止できる。また、第１部材と第２部材との間の位置調整をしながら筒状部材の他方端部を第２係合穴に嵌合させて挿着する作業は、テーパ面に沿った挿着による効果に加えて、筒状部材と第２係合穴との位置合わせ自体も容易となる。   According to the fourth aspect, since the cylindrical member can be inserted into the first engagement hole along the tapered surface of the cylindrical member, the operation is facilitated, and the cylindrical member and the first engagement are connected. It is possible to prevent galling between the holes. Further, the operation of fitting the other end of the cylindrical member into the second engagement hole while adjusting the position between the first member and the second member is performed by insertion along the tapered surface. In addition to the effect, the alignment itself between the cylindrical member and the second engagement hole is facilitated.

上記第５の発明によれば、第１部材と筒状部材との間の保持力が安定するため、筒状部材が安定して固定された状態で第２部材を位置決めする作業を行うことができる。また、筒状部材と第１係合穴および第２係合穴との間に生じる摩擦力が第１係合穴の方が大きくなるため、第２部材を第１部材から取り外す場合、筒状部材が第１部材側に残ることになる。したがって、再度第２部材を取り付けるときに、筒状部材を第１係合穴に挿着する作業が不要となる。   According to the fifth aspect, since the holding force between the first member and the cylindrical member is stable, the operation of positioning the second member in a state where the cylindrical member is stably fixed can be performed. it can. Further, since the friction force generated between the cylindrical member and the first engagement hole and the second engagement hole is larger in the first engagement hole, the cylindrical member is removed when the second member is removed from the first member. The member remains on the first member side. Therefore, when attaching the second member again, the work of inserting the tubular member into the first engagement hole becomes unnecessary.

上記第６の発明によれば、３つの部材を重ねて固定するときであっても、筒状部材を第１係合穴、第２係合穴、および第３係合穴と係合させて第１部材、第２部材、および第３部材を互いに接面することによって、第１部材に設けられたねじ穴と第２部材および第３部材に設けられた貫通穴とが、ねじを螺合することに適した位置関係に配置されて固定される。したがって、筒状部材を第１係合穴、第２係合穴、および第３係合穴と係合させた状態でねじ穴にねじを螺合することによって、第１部材、第２部材、および第３部材を位置決めして固定する作業が容易となる。   According to the sixth aspect, even when the three members are stacked and fixed, the cylindrical member is engaged with the first engagement hole, the second engagement hole, and the third engagement hole. By screwing the first member, the second member, and the third member into contact with each other, the screw hole provided in the first member and the through hole provided in the second member and the third member are screwed together. It is arranged and fixed in a suitable positional relationship. Therefore, by screwing the screw into the screw hole in a state where the cylindrical member is engaged with the first engagement hole, the second engagement hole, and the third engagement hole, the first member, the second member, And the operation | work which positions and fixes a 3rd member becomes easy.

本発明の固定方法によれば、上述した固定構造と同様の効果を得ることができる。   According to the fixing method of the present invention, the same effect as the above-described fixing structure can be obtained.

図面を参照して、本発明の一実施形態に係る固定構造について説明する。第１部材３と第２部材４とを固定する場合、第１部材３の接合面に複数のねじ穴を形成し、第２部材４に当該ねじ穴と対応する位置に複数の貫通穴を形成する。そして、第１部材３および第２部材４の接合面を互いに当接させた状態で、ボルトやねじを上記貫通穴に貫装させて上記ねじ穴と螺合させることによって固定する。そして、これらの貫通穴とねじ穴との組の少なくとも一部（例えば、２組以上）が、ねじ１および円筒固定部材２を用いて第１部材３および第２部材４が固定される。以下、図１〜図５を用いて、ねじ１および円筒固定部材２を用いて第１部材３および第２部材４を固定する構造について説明する。なお、図１は、本発明の一実施形態に係る固定構造の概略構成を示す側断面図である。図２は、図１に示した接合部付近を拡大した図である。図３（ａ）は、図１の第１部材３の概略構造を示す側断面図であり、図３（ｂ）は、図３（ａ）のＡ部詳細を示す図である。図４（ａ）は、図１の第２部材４の概略構造を示す側断面図であり、図４（ｂ）は、図４（ａ）のＢ部詳細を示す図である。図５（ａ）は、図１の円筒固定部材２の一例を示す斜視図であり、図５（ｂ）は、図５（ａ）円筒固定部材２の一部の断面ＤＤをＥ方向から見た図である。   A fixing structure according to an embodiment of the present invention will be described with reference to the drawings. When the first member 3 and the second member 4 are fixed, a plurality of screw holes are formed in the joint surface of the first member 3, and a plurality of through holes are formed in the second member 4 at positions corresponding to the screw holes. To do. Then, in a state where the joint surfaces of the first member 3 and the second member 4 are in contact with each other, a bolt or a screw is inserted into the through hole and fixed by screwing into the screw hole. The first member 3 and the second member 4 are fixed to at least a part (for example, two or more sets) of these through holes and screw holes by using the screw 1 and the cylindrical fixing member 2. Hereinafter, the structure which fixes the 1st member 3 and the 2nd member 4 using the screw 1 and the cylindrical fixing member 2 is demonstrated using FIGS. FIG. 1 is a side sectional view showing a schematic configuration of a fixing structure according to an embodiment of the present invention. FIG. 2 is an enlarged view of the vicinity of the joint shown in FIG. FIG. 3A is a side sectional view showing a schematic structure of the first member 3 in FIG. 1, and FIG. 3B is a diagram showing the details of a portion A in FIG. 3A. FIG. 4A is a side sectional view showing a schematic structure of the second member 4 of FIG. 1, and FIG. 4B is a diagram showing details of a B portion of FIG. 4A. FIG. 5A is a perspective view showing an example of the cylindrical fixing member 2 of FIG. 1, and FIG. 5B is a partial cross-sectional view DD of FIG. 5A viewed from the E direction. It is a figure.

図１および図２に示すように、第１部材３の接合面（図１〜図３に示す第１部材３の上面）と、第２部材４の接合面（図１、図２、および図４に示す第２部材４の下面）とが接面されてねじ１および円筒固定部材２によって固定される。   As shown in FIGS. 1 and 2, the joining surface of the first member 3 (upper surface of the first member 3 shown in FIGS. 1 to 3) and the joining surface of the second member 4 (FIGS. 1, 2, and FIG. 2). The lower surface of the second member 4 shown in FIG. 4 is contacted and fixed by the screw 1 and the cylindrical fixing member 2.

図１および図３に示すように、第１部材３の接合面には、円筒固定部材２を係合させるための第１係合穴３ａと、ねじ１を螺合させるためのねじ穴３ｂとが形成される。第１係合穴３ａは、ねじ穴３ｂと同軸で接合面から所定の加工深さで形成され、図３（ｂ）に示すように接合面と第１係合穴３ａとの角にはＣ面取り（例えば、Ｃ１）が形成される。ねじ穴３ｂは、ねじ１のねじ部と螺合可能であり、第１部材３および第２部材４の重量、大きさ、締め付けトルク等によってその呼び径が設定される。第１係合穴３ａの軸径Ｄ１は、ねじ穴３ｂのねじ大径より大きく、後述する円筒固定部材２の外径と締まりばめまたは中間ばめとなる内径である。なお、第１係合穴３ａが形成される上記加工深さは、円筒固定部材２の全長の半分以上（例えば、２／３以上）確保されていることが好ましい。また、第１係合穴３ａを第１部材３の接合面に形成する際、ねじ穴３ｂの座ぐりとして加工形成することも可能である。つまり、接合面に沿った方向の第１係合穴３ａとねじ穴３ｂとの位置が一致しているため当該位置の精度も不要となり、簡単な加工で第１係合穴３ａを形成することができる。   As shown in FIGS. 1 and 3, a first engagement hole 3 a for engaging the cylindrical fixing member 2 and a screw hole 3 b for screwing the screw 1 are formed on the joint surface of the first member 3. Is formed. The first engagement hole 3a is coaxial with the screw hole 3b and is formed at a predetermined processing depth from the joint surface, and at the corner of the joint surface and the first engagement hole 3a as shown in FIG. A chamfer (eg, C1) is formed. The screw hole 3b can be screwed with the screw portion of the screw 1, and the nominal diameter is set according to the weight, size, tightening torque, and the like of the first member 3 and the second member 4. The shaft diameter D1 of the first engagement hole 3a is larger than the screw diameter of the screw hole 3b, and is an outer diameter of a cylindrical fixing member 2 described later and an inner diameter that serves as an interference fit or an intermediate fit. In addition, it is preferable that the said process depth in which the 1st engagement hole 3a is formed is ensured more than half (for example, 2/3 or more) of the full length of the cylindrical fixing member 2. FIG. Moreover, when forming the 1st engagement hole 3a in the joint surface of the 1st member 3, it is also possible to process and form as a counterbore of the screw hole 3b. That is, since the positions of the first engagement hole 3a and the screw hole 3b in the direction along the joint surface coincide with each other, the accuracy of the position becomes unnecessary, and the first engagement hole 3a is formed by simple processing. Can do.

図１、図４（ａ）、および図４（ｂ）に示すように、第２部材４は、その上面から接合面まで貫通する貫通穴４ｂが形成されている。貫通穴４ｂは、ねじ１のいわゆるボルト穴として機能し、その軸径Ｄ３は、ねじ１に形成されているねじ部のねじ大径より大きく、ねじ１の頭部より小さい直径である。また、第２部材４の接合面には、貫通穴４ｂと同軸で接合面から所定の加工深さで形成される第２係合穴４ａが形成され、図４（ｂ）に示すように接合面と第２係合穴４ａとの角にはＣ面取り（例えば、Ｃ１）が形成される。第２係合穴４ａの軸径Ｄ２は、貫通穴４ｂの軸径Ｄ３より大きく、上記軸径Ｄ１と同じ直径である。なお、第２係合穴４ａが形成される上記加工深さは、上記第１係合穴３ａの加工深さが円筒固定部材２の全長の２／３である場合、円筒固定部材２の全長の１／３より長く確保されていることが好ましい。また、第２係合穴４ａを第２部材４の接合面に形成する際、貫通穴４ｂの座ぐりとして加工形成することも可能である。つまり、接合面に沿った方向の第２係合穴４ａと貫通穴４ｂとの位置が一致しているため当該位置の精度も不要となり、簡単な加工で第２係合穴４ａを形成することができる。   As shown in FIGS. 1, 4A, and 4B, the second member 4 has a through hole 4b that penetrates from the upper surface to the bonding surface. The through hole 4 b functions as a so-called bolt hole of the screw 1, and the shaft diameter D <b> 3 is larger than the screw large diameter of the screw portion formed in the screw 1 and smaller than the head of the screw 1. Further, a second engagement hole 4a is formed on the joint surface of the second member 4 so as to be coaxial with the through-hole 4b and formed at a predetermined processing depth from the joint surface, as shown in FIG. 4B. A chamfer (for example, C1) is formed at the corner between the surface and the second engagement hole 4a. The shaft diameter D2 of the second engagement hole 4a is larger than the shaft diameter D3 of the through hole 4b and is the same diameter as the shaft diameter D1. In addition, the said process depth in which the 2nd engagement hole 4a is formed is the full length of the cylindrical fixing member 2, when the processing depth of the said 1st engagement hole 3a is 2/3 of the full length of the cylindrical fixing member 2. It is preferable that it is ensured to be longer than 1/3. Moreover, when forming the 2nd engagement hole 4a in the joint surface of the 2nd member 4, it is also possible to process and form as a counterbore of the through-hole 4b. That is, since the positions of the second engagement holes 4a and the through holes 4b in the direction along the joint surface coincide with each other, the accuracy of the positions becomes unnecessary, and the second engagement holes 4a are formed by simple processing. Can do.

図１、図２、図５（ａ）、および図５（ｂ）に示すように、円筒固定部材２は、第１係合穴３ａおよび第２係合穴４ａと係合可能な外径を有し、ねじ１のねじ大径より大きい内径（例えば、軸径Ｄ３と同等）を有する筒状部材である。具体的には、円筒固定部材２の外径は、上記軸径Ｄ１や軸径Ｄ２に対して締まりばめまたは中間ばめとなる内径である。なお、図５（ａ）に示すように、円筒固定部材２の端面と側面との角にＲ面取りを形成してもかまわない。   As shown in FIG. 1, FIG. 2, FIG. 5 (a), and FIG. 5 (b), the cylindrical fixing member 2 has an outer diameter that can be engaged with the first engagement hole 3a and the second engagement hole 4a. It is a cylindrical member having an inner diameter (for example, equivalent to the shaft diameter D3) larger than the larger diameter of the screw 1. Specifically, the outer diameter of the cylindrical fixing member 2 is an inner diameter that is an interference fit or an intermediate fit with respect to the shaft diameter D1 or the shaft diameter D2. In addition, as shown to Fig.5 (a), you may form R chamfering in the corner | angular of the end surface and side surface of the cylindrical fixing member 2. FIG.

図１に示すように、ねじ１は、その一方側に貫通穴４ｂの軸径Ｄ３より大きな軸径の頭部を有し、その他方側にねじ穴３ｂと螺合するねじ部を有する。   As shown in FIG. 1, the screw 1 has a head portion having a shaft diameter larger than the shaft diameter D3 of the through hole 4b on one side, and a screw portion screwed with the screw hole 3b on the other side.

次に、第１部材３および第２部材４を固定する固定手順について説明する。ここでは、説明を具体的にするために、接合面が立設されて固定された第１部材３に対して、第２部材４を位置決めして固定する手順を用いる。例えば、第１部材３が筐体の一部であって当該筐体の内部に機械本体等の重量物が収納されており、その第１部材３に第２部材４（カバー）を位置決めして固定する場合等が想定される。   Next, a fixing procedure for fixing the first member 3 and the second member 4 will be described. Here, in order to make the description more specific, a procedure is used in which the second member 4 is positioned and fixed with respect to the first member 3 on which the joint surface is erected and fixed. For example, the first member 3 is a part of the housing, and a heavy object such as a machine main body is accommodated in the housing, and the second member 4 (cover) is positioned on the first member 3. The case where it fixes is assumed.

作業者は、第１部材３の接合面に形成されている全ての第１係合穴３ａ（図３参照）に、円筒固定部材２を挿着する。具体的には、第１係合穴３ａの加工深さが円筒固定部材２の全長の２／３の場合、円筒固定部材２の一方端部が第１係合穴３ａの底面と当接するように円筒固定部材２と第１係合穴３ａとを係合させる。ここで、第１係合穴３ａの軸径Ｄ１は、円筒固定部材２の外径と締まりばめまたは中間ばめとなる内径で形成されている。したがって、作業者は、円筒固定部材２を第１係合穴３ａ内部へ押圧する、または打ち込んで、円筒固定部材２を第１係合穴３ａに挿着する。これによって、円筒固定部材２は、第１係合穴３ａに対して締まりばめまたは中間ばめの状態で係合するため、振動等によって容易に脱落することはない。また、第１係合穴３ａの加工深さが円筒固定部材２の全長の２／３である場合、円筒固定部材２は、他方端部が第１部材３の接合面から全長の１／３だけ突出した状態で第１係合穴３ａと係合する。なお、第１係合穴３ａの加工深さが円筒固定部材２の全長の２／３より深い場合、他方端部が第１部材３の接合面から全長の１／３だけ突出した状態まで円筒固定部材２を第１係合穴３ａに挿入するのが好ましい。   The operator inserts the cylindrical fixing member 2 into all the first engagement holes 3 a (see FIG. 3) formed on the joint surface of the first member 3. Specifically, when the processing depth of the first engagement hole 3a is 2/3 of the entire length of the cylindrical fixing member 2, one end of the cylindrical fixing member 2 comes into contact with the bottom surface of the first engagement hole 3a. The cylindrical fixing member 2 and the first engagement hole 3a are engaged with each other. Here, the shaft diameter D1 of the first engagement hole 3a is formed to be the outer diameter of the cylindrical fixing member 2 and the inner diameter serving as an interference fit or an intermediate fit. Therefore, the operator presses or drives the cylindrical fixing member 2 into the first engagement hole 3a, and inserts the cylindrical fixing member 2 into the first engagement hole 3a. As a result, the cylindrical fixing member 2 is engaged with the first engagement hole 3a in an interference fit or an intermediate fit, so that it does not easily fall off due to vibration or the like. When the processing depth of the first engagement hole 3 a is 2/3 of the entire length of the cylindrical fixing member 2, the other end of the cylindrical fixing member 2 is 1/3 of the total length from the joint surface of the first member 3. It engages with the first engagement hole 3a in a state of protruding only. When the processing depth of the first engagement hole 3a is deeper than 2/3 of the total length of the cylindrical fixing member 2, the other end is cylindrical until it protrudes from the joint surface of the first member 3 by 1/3 of the total length. It is preferable to insert the fixing member 2 into the first engagement hole 3a.

次に、作業者は、第１部材３の接合面から一部突出した状態で第１係合穴３ａに係合している全ての円筒固定部材２と、第２部材４の接合面に形成されている第２係合穴４ａ（図４参照）とが係合するように、第１部材３と第２部材４との位置調整をしながら円筒固定部材２の他方端部を第２係合穴４ａに嵌合させて挿着する。これによって、円筒固定部材２が第１係合穴３ａおよび第２係合穴４ａと係合した状態で、第１部材３の接合面と第２部材４の接合面とが接面する。このとき、第２係合穴４ａの軸径Ｄ２が軸径Ｄ１と同じ直径であるため、若干第１部材３側へ押圧することによって、第１部材３の接合面と第２部材４の接合面とが接面する。また、第２係合穴４ａの加工深さは、第１係合穴３ａの加工深さが円筒固定部材２の全長の２／３である場合、円筒固定部材２の全長の１／３より長く確保されている。したがって、円筒固定部材２の他方端部と第２係合穴４ａの底面とは当接することなく、隙間Ｓ（図２参照）が形成される。   Next, the operator forms all the cylindrical fixing members 2 that are engaged with the first engagement holes 3 a while partially protruding from the joint surface of the first member 3 and the joint surface of the second member 4. The other end of the cylindrical fixing member 2 is adjusted to the second engagement position while adjusting the position of the first member 3 and the second member 4 so that the second engagement hole 4a (see FIG. 4) is engaged. It is inserted into the fitting hole 4a. Thereby, the joint surface of the first member 3 and the joint surface of the second member 4 are in contact with each other in a state where the cylindrical fixing member 2 is engaged with the first engagement hole 3a and the second engagement hole 4a. At this time, since the shaft diameter D2 of the second engagement hole 4a is the same as the shaft diameter D1, the surface of the first member 3 and the second member 4 are joined by slightly pressing toward the first member 3 side. The surface touches the surface. Further, the processing depth of the second engagement hole 4a is 1/3 of the total length of the cylindrical fixing member 2 when the processing depth of the first engagement hole 3a is 2/3 of the total length of the cylindrical fixing member 2. Secured for a long time. Accordingly, the other end of the cylindrical fixing member 2 and the bottom surface of the second engagement hole 4a are not in contact with each other, so that a gap S (see FIG. 2) is formed.

ここで、円筒固定部材２が第１係合穴３ａおよび第２係合穴４ａと係合した状態で、第１部材３の接合面と第２部材４の接合面とが接面した状態では、円筒固定部材２が用いられている２組以上のねじ穴３ｂと貫通穴４ｂとが同軸となった位置関係であることは、図１等を参照すれば明らかである。つまり、円筒固定部材２が用いられている２箇所以上のねじ穴３ｂと貫通穴４ｂとは、ねじ１を螺合することに適した位置関係に配置される。一方、第１部材３の接合面に形成された全てのねじ穴と、第２部材４に形成された全ての貫通穴とが正確な位置に設けられているのであれば、少なくとも２箇所のねじ穴と貫通穴との位置合わせによって円筒固定部材２が用いられていない他のねじ穴と貫通穴の組についても、ねじ１を螺合することに適した位置関係に配置されることは明らかである。したがって、円筒固定部材２を第１係合穴３ａおよび第２係合穴４ａと少なくとも２箇所係合させることによって、第１部材３に設けられた全てのねじ穴と第２部材４に設けられた全ての貫通穴とが、ねじ１を螺合することに適した位置関係に配置される。   Here, in the state where the cylindrical fixing member 2 is engaged with the first engagement hole 3a and the second engagement hole 4a, the bonding surface of the first member 3 and the bonding surface of the second member 4 are in contact with each other. Referring to FIG. 1 and the like, it is clear that the two or more sets of screw holes 3b in which the cylindrical fixing member 2 is used and the through holes 4b are in a coaxial relationship. That is, the two or more screw holes 3b and the through holes 4b in which the cylindrical fixing member 2 is used are arranged in a positional relationship suitable for screwing the screws 1. On the other hand, if all the screw holes formed in the joint surface of the first member 3 and all the through holes formed in the second member 4 are provided at accurate positions, at least two screws are provided. It is clear that other screw hole and through hole pairs in which the cylindrical fixing member 2 is not used by positioning the hole and the through hole are also arranged in a positional relationship suitable for screwing the screw 1. is there. Therefore, the cylindrical fixing member 2 is provided in all the screw holes provided in the first member 3 and the second member 4 by engaging at least two places with the first engagement hole 3a and the second engagement hole 4a. All the through holes are arranged in a positional relationship suitable for screwing the screw 1.

次に、作業者は、第１部材３および第２部材４に設けられた全てのねじ穴と貫通穴との組に対して、ねじ１にてそれぞれ螺合固定していく。このとき、円筒固定部材２によって第１部材３に対する第２部材４の位置が固定されているため、螺合作業等によって両者の位置関係がずれることは生じない。なお、円筒固定部材２が係合している組については、ねじ１を貫通穴４ｂおよび円筒固定部材２の筒内に貫装してねじ穴３ｂと螺合させる。   Next, the worker screws and fixes the set of all screw holes and through holes provided in the first member 3 and the second member 4 with the screw 1. At this time, since the position of the second member 4 with respect to the first member 3 is fixed by the cylindrical fixing member 2, the positional relationship between the two members does not shift due to screwing work or the like. In addition, about the group with which the cylindrical fixing member 2 is engaged, the screw 1 is penetrated in the through-hole 4b and the cylinder of the cylindrical fixing member 2, and is screwed together with the screw hole 3b.

このように、円筒固定部材２を第１係合穴３ａおよび第２係合穴４ａと係合させた状態でねじ穴３ｂとねじ１とを螺合させることによって、第１部材３および第２部材４を位置決めして固定する作業が容易となる。また、第１部材３および第２部材４の接合面に円筒固定部材２を介入させることによって、当該接合面に沿った方向に加わる重力や振動等の負荷に対する強度を上げることも可能であり、従来のねじより小型のねじや安価なねじを使用しても固定強度を満たすことが期待できる。   In this way, by screwing the screw hole 3b and the screw 1 with the cylindrical fixing member 2 engaged with the first engagement hole 3a and the second engagement hole 4a, the first member 3 and the second member 2 are engaged. The operation of positioning and fixing the member 4 is facilitated. Further, by interposing the cylindrical fixing member 2 on the joint surfaces of the first member 3 and the second member 4, it is possible to increase the strength against loads such as gravity and vibration applied in the direction along the joint surface, It can be expected that the fixing strength is satisfied even if a screw smaller than a conventional screw or an inexpensive screw is used.

なお、上述したように、円筒固定部材２を第１係合穴３ａ内部へ押圧する、または打ち込んで第１係合穴３ａに挿着している。このような作業の効率化や円筒固定部材２と第１係合穴３ａや第２係合穴４ａとの間のかじりが生じることを防止するために、円筒固定部材２の両端部にテーパ面を形成してもかまわない。例えば、図６（ａ）は、円筒固定部材２にテーパ面Ｔを形成した例を示す斜視図であり、図６（ｂ）は、図６（ａ）円筒固定部材２の一部の断面ＦＦをＨ方向から見た図である。図６（ａ）および図６（ｂ）に示すように、円筒固定部材２の両端部に外径が漸減的に細くなる適当なテーパ面Ｔ（例えば、円筒側面に対して角度１５°）を側面全周に形成することによって、当該テーパ面Ｔに沿って円筒固定部材２を第１係合穴３ａへ挿着することが可能となるため、作業が容易となり、円筒固定部材２と第１係合穴３ａとの間のかじりも防止できる。また、第１部材３と第２部材４との間の位置調整をしながら円筒固定部材２の他方端部を第２係合穴４ａに嵌合させて挿着する作業は、テーパ面Ｔに沿った挿着による効果に加えて、円筒固定部材２と第２係合穴４ａとの位置合わせ自体も容易となる。なお、図６（ｂ）に示すように、円筒固定部材２の端面とテーパ面Ｔとの角および円筒固定部材２の側面とテーパ面Ｔとの角にそれぞれＲ面取りを形成してもかまわない。   As described above, the cylindrical fixing member 2 is pressed or driven into the first engagement hole 3a to be inserted into the first engagement hole 3a. In order to improve the efficiency of such work and to prevent galling between the cylindrical fixing member 2 and the first engagement hole 3a or the second engagement hole 4a, tapered surfaces are formed at both ends of the cylindrical fixing member 2. May be formed. For example, FIG. 6A is a perspective view illustrating an example in which a tapered surface T is formed on the cylindrical fixing member 2, and FIG. 6B is a partial cross-sectional FF of FIG. 6A. It is the figure which looked at from the H direction. As shown in FIGS. 6 (a) and 6 (b), an appropriate taper surface T (for example, an angle of 15 ° with respect to the side surface of the cylinder) having an outer diameter gradually decreasing at both ends of the cylindrical fixing member 2 is provided. Since the cylindrical fixing member 2 can be inserted into the first engagement hole 3a along the tapered surface T by forming the entire circumference of the side surface, the work is facilitated, and the cylindrical fixing member 2 and the first It is also possible to prevent galling between the engagement holes 3a. The operation of fitting the other end of the cylindrical fixing member 2 into the second engagement hole 4a while adjusting the position between the first member 3 and the second member 4 is performed on the tapered surface T. In addition to the effect of the insertion along, alignment of the cylindrical fixing member 2 and the second engagement hole 4a itself becomes easy. As shown in FIG. 6B, R chamfers may be formed at the corners of the end surface of the cylindrical fixing member 2 and the tapered surface T and at the corners of the side surface of the cylindrical fixing member 2 and the tapered surface T, respectively. .

また、図７および図８に示すように、円筒固定部材２の側面を円筒軸方向に分割して１つの隙間Ｇを形成して、当該隙間Ｇが縮む方向に弾性変形可能に円筒固定部材２を構成してもかまわない。図７は、円筒形状の円筒固定部材２に隙間Ｇを形成した一例である。また、図８は、上述したテーパ面Ｔを有する円筒固定部材２に隙間Ｇを形成した一例である。これらの場合、円筒固定部材２に外部から応力を加えない状態の外径（以下、自由外径と記載する）は、第１係合穴３ａの軸径Ｄ１より大きく形成される。また、円筒固定部材２の隙間Ｇと対向する端部同士を当接させた状態（つまり、円筒固定部材２を変形させて隙間Ｇが０となる状態まで縮めた状態）の外径は、第１係合穴３ａの軸径Ｄ１および第２係合穴４ａの軸径Ｄ２より小さく形成される。これによって、円筒固定部材２を第１係合穴３ａへ挿着する作業では、隙間Ｇが縮む方向に円筒固定部材２を縮めて円筒固定部材２を第１係合穴３ａに挿着することができ、当該作業が容易となり、円筒固定部材２と第１係合穴３ａとの間のかじりも防止できる。また、円筒固定部材２自身が自由外径に戻ろうとする弾性力（復元力）によって円筒固定部材２が第１係合穴３ａ内に支持されるため、円筒固定部材２と第１係合穴３ａとの間を締まりばめまたは中間ばめとするための寸法公差も不要となり、第１係合穴３ａの加工コストを低減できる。なお、これら隙間Ｇを形成した円筒固定部材２についても、円筒固定部材２の端面と側面との角、円筒固定部材２の端面とテーパ面Ｔとの角、および円筒固定部材２の側面とテーパ面Ｔとの角等にＲ面取りを形成してもかまわない（図５（ｂ）および図６（ｂ）参照）。   7 and 8, the side surface of the cylindrical fixing member 2 is divided in the cylindrical axial direction to form one gap G, and the cylindrical fixing member 2 is elastically deformable in the direction in which the gap G contracts. May be configured. FIG. 7 shows an example in which a gap G is formed in the cylindrical fixing member 2 having a cylindrical shape. FIG. 8 is an example in which a gap G is formed in the cylindrical fixing member 2 having the tapered surface T described above. In these cases, an outer diameter (hereinafter referred to as a free outer diameter) in a state where no stress is applied to the cylindrical fixing member 2 is formed larger than the shaft diameter D1 of the first engagement hole 3a. Further, the outer diameter of the cylindrical fixing member 2 in the state in which the ends facing the gap G are in contact with each other (that is, the cylindrical fixing member 2 is deformed and contracted to a state where the gap G becomes zero) is It is formed smaller than the shaft diameter D1 of the first engagement hole 3a and the shaft diameter D2 of the second engagement hole 4a. Accordingly, in the operation of inserting the cylindrical fixing member 2 into the first engagement hole 3a, the cylindrical fixing member 2 is contracted in the direction in which the gap G is reduced and the cylindrical fixing member 2 is inserted into the first engagement hole 3a. Therefore, the operation is facilitated, and the galling between the cylindrical fixing member 2 and the first engagement hole 3a can be prevented. Further, since the cylindrical fixing member 2 is supported in the first engagement hole 3a by the elastic force (restoring force) that the cylindrical fixing member 2 itself tries to return to the free outer diameter, the cylindrical fixing member 2 and the first engagement hole There is no need for a dimensional tolerance for the interference fit or intermediate fit with 3a, and the processing cost of the first engagement hole 3a can be reduced. Note that the cylindrical fixing member 2 in which these gaps G are formed is also the angle between the end surface and the side surface of the cylindrical fixing member 2, the angle between the end surface of the cylindrical fixing member 2 and the tapered surface T, and the side surface and the taper of the cylindrical fixing member 2. An R chamfer may be formed at a corner with respect to the surface T (see FIGS. 5B and 6B).

なお、上述した円筒固定部材２の全長および外径の比は、所定の範囲内であることが好ましい。具体的には、図５（ａ）に示すように、第１係合穴３ａおよび第２係合穴４ａとの係合状態における円筒固定部材２の全長をｈおよび外径をｄとすると、
０．５＜ｈ／ｄ＜１．０
の数値範囲となるように、円筒固定部材２の全長ｈおよび外径ｄを設定することが好ましい。 In addition, it is preferable that ratio of the full length and outer diameter of the cylindrical fixing member 2 mentioned above is in a predetermined range. Specifically, as shown in FIG. 5 (a), when the total length of the cylindrical fixing member 2 in the engaged state with the first engagement hole 3a and the second engagement hole 4a is h and the outer diameter is d,
0.5 <h / d <1.0
It is preferable to set the total length h and the outer diameter d of the cylindrical fixing member 2 so that the numerical range is as follows.

例えば、ｈ／ｄ＜０．５の場合、円筒固定部材２が外径ｄに対して相対的に短い全長ｈとなるため、第１部材３の第１係合穴３ａに係合する際に、円筒固定部材２が傾きやすい。そして、第１係合穴３ａに対して傾いた状態で円筒固定部材２が挿着されていると、位置調整をしながら円筒固定部材２の他方端部を第２係合穴４ａに嵌合させて第２部材４を挿着することが難しくなる。   For example, when h / d <0.5, the cylindrical fixing member 2 has a relatively short overall length h with respect to the outer diameter d. Therefore, when engaging with the first engagement hole 3 a of the first member 3. The cylindrical fixing member 2 is easy to tilt. When the cylindrical fixing member 2 is inserted in a state inclined with respect to the first engagement hole 3a, the other end of the cylindrical fixing member 2 is fitted into the second engagement hole 4a while adjusting the position. Thus, it becomes difficult to insert the second member 4.

また、ｈ／ｄ＞１．０の場合、円筒固定部材２が外径ｄに対して相対的に長い全長ｈとなる。一方、第２部材４の厚み方向の長さにも制限があるため、このような円筒固定部材２を装着可能にするためには、ねじ１とねじ穴３ｂとが螺合する部分が短くなることが考えられ、固定強度が低下する恐れがある。   Moreover, when h / d> 1.0, the cylindrical fixing member 2 has a relatively long overall length h with respect to the outer diameter d. On the other hand, since the length in the thickness direction of the second member 4 is also limited, in order to make it possible to mount such a cylindrical fixing member 2, a portion where the screw 1 and the screw hole 3b are screwed is shortened. The fixing strength may be reduced.

また、ねじ１の座面にワッシャを挿入して第１部材３と第２部材４とを固定してもかまわない。また、図１および図２では、ねじ１のを頭部が六角形状となったボルトで例示したが、他のねじやボルトでもかまわない。例えば、一般的なプラスドライバやマイナスドライバで締め付けるねじでもいいし、手回しねじでもかまわない。   Alternatively, the first member 3 and the second member 4 may be fixed by inserting a washer into the seating surface of the screw 1. Moreover, in FIG. 1 and FIG. 2, although the screw 1 was illustrated with the volt | bolt in which the head became a hexagon shape, another screw and volt | bolt may be sufficient. For example, it may be a screw that is tightened with a common Phillips screwdriver or a flat-blade screwdriver, or a hand screw.

また、上述した説明では、第１係合穴３ａに円筒固定部材２の全長の２／３を埋没させる例をしたが、これは第１部材３から突出する長さをある程度（全長の１／３）確保しながら第１部材３側に円筒固定部材２が係合する長さを長くするためである。これによって、第１部材３と円筒固定部材２との間の保持力が安定するため、円筒固定部材２が安定して固定された状態で第２部材４を位置決めする作業を行うことができる。また、円筒固定部材２と第１係合穴３ａおよび第２係合穴４ａとの間に生じる摩擦力が第１係合穴３ａの方が大きくなるため、第２部材４を第１部材３から取り外す場合、円筒固定部材２が第１部材３側に残ることになる。したがって、再度第２部材４を取り付けるときに、円筒固定部材２を第１係合穴３ａに挿着する作業が不要となる。   In the above description, an example in which 2/3 of the entire length of the cylindrical fixing member 2 is buried in the first engagement hole 3a has been described. 3) This is for increasing the length of engagement of the cylindrical fixing member 2 on the first member 3 side while ensuring. Thereby, since the holding force between the first member 3 and the cylindrical fixing member 2 is stabilized, the operation of positioning the second member 4 in a state where the cylindrical fixing member 2 is stably fixed can be performed. Further, since the friction force generated between the cylindrical fixing member 2 and the first engagement hole 3a and the second engagement hole 4a is larger in the first engagement hole 3a, the second member 4 is replaced with the first member 3. When removing from the cylindrical member 2, the cylindrical fixing member 2 remains on the first member 3 side. Therefore, when the second member 4 is attached again, the work of inserting the cylindrical fixing member 2 into the first engagement hole 3a becomes unnecessary.

また、上述した説明では、ねじ穴３ｂが形成された第１部材３側に円筒固定部材２を挿着した後、第２部材４との位置決めを行ったが、他の態様で取付け作業を行ってもかまわない。例えば、貫通穴４ｂが形成された第２部材４側に円筒固定部材２を挿着した後、第１部材３との位置決めを行ってもかまわない。この場合、第１係合穴３ａと円筒固定部材２との寸法関係を第２係合穴４ａに適用すれば、第２部材４側に円筒固定部材２を挿着して位置決めする態様を容易に実現することができる。   In the above description, the cylindrical fixing member 2 is inserted into the first member 3 side in which the screw hole 3b is formed, and then the positioning with the second member 4 is performed. It doesn't matter. For example, positioning with the first member 3 may be performed after the cylindrical fixing member 2 is inserted into the second member 4 side where the through hole 4b is formed. In this case, if the dimensional relationship between the first engagement hole 3a and the cylindrical fixing member 2 is applied to the second engagement hole 4a, the cylindrical fixing member 2 can be easily inserted and positioned on the second member 4 side. Can be realized.

また、上述した説明では、第１部材３の一例として筐体を用いたが、第１部材３は、他の構造物でもかまわない。例えば、図９は、第１部材３を軸等の柱状物とした一例を示す固定構造の概略構成を示す側断面図である。例えば、図９に示したような柱状物の第１部材３が複数本並設された各接合面に第２部材４を固定するような態様に対しても、同様に本発明を適用することができる。   In the above description, the housing is used as an example of the first member 3, but the first member 3 may be another structure. For example, FIG. 9 is a side sectional view showing a schematic configuration of a fixed structure showing an example in which the first member 3 is a columnar object such as a shaft. For example, the present invention is similarly applied to an aspect in which the second member 4 is fixed to each joint surface in which a plurality of columnar first members 3 as shown in FIG. 9 are arranged side by side. Can do.

また、上述した説明では、２つの部材（第１部材３および第２部材４）を固定する態様を説明したが、他の固定構造でも本発明を適用することができる。例えば、本発明は、３つ以上の部材を固定する構造に適用してもかまわない。以下、図１０を参照して、３つの部材を固定する構造に適用した例について説明する。なお、図１０は、本発明を３つの部材を固定する構造に適用した固定構造の概略構成を示す側断面図である。   Moreover, although the aspect which fixes two members (the 1st member 3 and the 2nd member 4) was demonstrated in the description mentioned above, this invention is applicable also to another fixing structure. For example, the present invention may be applied to a structure in which three or more members are fixed. Hereinafter, an example applied to a structure for fixing three members will be described with reference to FIG. FIG. 10 is a side sectional view showing a schematic configuration of a fixing structure in which the present invention is applied to a structure for fixing three members.

図１０に示すように、３つの部材を固定する場合、図１等を用いて説明した固定構造に対して、第３部材５がさらに挟装されて固定される。なお、図１０において、図１を用いて説明した構成要素と同じ構成要素については、同一の参照符号を付して詳細な説明を省略する。   As shown in FIG. 10, when three members are fixed, the third member 5 is further sandwiched and fixed to the fixing structure described with reference to FIG. In FIG. 10, the same components as those described with reference to FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

図１０において、第１部材３の接合面（図１０に示す第１部材３の上面）と、第２部材４の接合面（図１０に示す第２部材４の下面）との間に、第３部材５の両主面がそれぞれ接面される。そして、ねじ１および円筒固定部材２によって、第１部材３、第２部材４、および第３部材５が固定される。例えば、第３部材５は、第１部材３および第２部材４の間に挟持されて固定される板状部材（例えば、スペーサ等の中間部材）である。第３部材５は、その一方主面から他方主面まで貫通し、上述した第２部材４の第２係合穴４ａと同じ内径または第２係合穴４ａより大きい内径を有する係合穴が形成される。そして、円筒固定部材２は、第１部材３の第１係合穴３ａと第２部材４の第２係合穴４ａと共に、第３部材５の係合穴とも係合する。   In FIG. 10, the first member 3 is joined between the joint surface (the upper surface of the first member 3 shown in FIG. 10) and the joint surface of the second member 4 (the lower surface of the second member 4 shown in FIG. 10). Both main surfaces of the three members 5 are in contact with each other. The first member 3, the second member 4, and the third member 5 are fixed by the screw 1 and the cylindrical fixing member 2. For example, the third member 5 is a plate-like member (for example, an intermediate member such as a spacer) that is sandwiched and fixed between the first member 3 and the second member 4. The third member 5 has an engagement hole that penetrates from one main surface to the other main surface and has the same inner diameter as the second engagement hole 4a of the second member 4 or an inner diameter larger than the second engagement hole 4a. It is formed. The cylindrical fixing member 2 engages with the engagement hole of the third member 5 together with the first engagement hole 3 a of the first member 3 and the second engagement hole 4 a of the second member 4.

第１部材３、第２部材４、および第３部材５を固定する固定手順について説明する。作業者は、第１部材３の接合面に形成されている全ての第１係合穴３ａ（図３参照）に、円筒固定部材２を挿着する。このとき、円筒固定部材２の端部が第１部材３の接合面から突出した状態となる。   A fixing procedure for fixing the first member 3, the second member 4, and the third member 5 will be described. The operator inserts the cylindrical fixing member 2 into all the first engagement holes 3 a (see FIG. 3) formed on the joint surface of the first member 3. At this time, the end portion of the cylindrical fixing member 2 protrudes from the joint surface of the first member 3.

次に、作業者は、第１部材３の接合面から一部突出した状態で第１係合穴３ａに係合している全ての円筒固定部材２が、第３部材５に形成されている上記係合穴に貫装されるように、第１部材３と第３部材５との位置調整をしながら円筒固定部材２を第３部材５の係合穴に貫装させる。これによって、円筒固定部材２が第３部材５の係合穴に貫装された状態で、第１部材３の接合面と第３部材５の一方主面とが接面して配置される。このとき、円筒固定部材２の端部が第３部材５の他方主面から突出した状態となる。   Next, the operator forms all the cylindrical fixing members 2 engaged with the first engagement holes 3 a in the third member 5 in a state of partially protruding from the joint surface of the first member 3. The cylindrical fixing member 2 is inserted into the engagement hole of the third member 5 while adjusting the positions of the first member 3 and the third member 5 so as to be inserted through the engagement hole. Thereby, in a state where the cylindrical fixing member 2 is inserted into the engagement hole of the third member 5, the joint surface of the first member 3 and the one main surface of the third member 5 are arranged in contact with each other. At this time, the end of the cylindrical fixing member 2 protrudes from the other main surface of the third member 5.

次に、作業者は、第３部材５の他方主面から一部突出した状態の全ての円筒固定部材２と、第２部材４の接合面に形成されている第２係合穴４ａ（図４参照）とが係合するように、第１部材３および第３部材５と第２部材４との位置調整をしながら円筒固定部材２の他方端部を第２係合穴４ａに嵌合させて挿着する。これによって、円筒固定部材２が第１係合穴３ａおよび第２係合穴４ａと係合した状態で、第３部材５の他方主面と第２部材４の接合面とが接面する。結果的に、第１部材３の接合面と第２部材４の接合面とが対向した位置関係で、それら部材の間に第３部材５が挟まれて配置される。   Next, the operator engages all the cylindrical fixing members 2 in a state of partially protruding from the other main surface of the third member 5 and the second engagement holes 4a formed in the joining surface of the second member 4 (see FIG. 4), the other end of the cylindrical fixing member 2 is fitted into the second engagement hole 4a while adjusting the position of the first member 3, the third member 5, and the second member 4. Let me insert it. Accordingly, the other main surface of the third member 5 and the joint surface of the second member 4 are in contact with each other in a state where the cylindrical fixing member 2 is engaged with the first engagement hole 3a and the second engagement hole 4a. As a result, the third member 5 is disposed between the members in a positional relationship in which the joint surface of the first member 3 and the joint surface of the second member 4 face each other.

ここで、円筒固定部材２が第１係合穴３ａ、第３部材５の係合穴、および第２係合穴４ａと係合した状態で、第１部材３、第３部材５、および第２部材４とが互いに接面した状態では、円筒固定部材２が用いられている２組以上の第１部材３のねじ穴と第２部材４の貫通穴とが同軸となった位置関係であることは、図１０を参照すれば明らかである。つまり、円筒固定部材２が用いられている２箇所以上のねじ穴と貫通穴とは、ねじ１を螺合することに適した位置関係に配置される。一方、第１部材３の接合面に形成された全てのねじ穴と、第２部材４および第３部材５に形成された全ての貫通穴とが正確な位置に設けられているのであれば、少なくとも２箇所のねじ穴と貫通穴との位置合わせによって円筒固定部材２が用いられていない他のねじ穴と貫通穴の組についても、ねじ１を螺合することに適した位置関係に配置されることは明らかである。したがって、円筒固定部材２を第１係合穴３ａ、第３部材５の係合穴、および第２係合穴４ａと少なくとも２箇所係合させることによって、第１部材３に設けられた全てのねじ穴と第２部材４および第３部材５に設けられた全ての貫通穴とが、ねじ１を螺合することに適した位置関係に配置される。   Here, with the cylindrical fixing member 2 engaged with the first engagement hole 3a, the engagement hole of the third member 5, and the second engagement hole 4a, the first member 3, the third member 5, and the first In a state where the two members 4 are in contact with each other, the screw holes of the two or more sets of the first member 3 in which the cylindrical fixing member 2 is used and the through holes of the second member 4 are coaxial. This is apparent with reference to FIG. That is, the two or more screw holes and the through holes where the cylindrical fixing member 2 is used are arranged in a positional relationship suitable for screwing the screw 1. On the other hand, if all the screw holes formed in the joint surface of the first member 3 and all the through holes formed in the second member 4 and the third member 5 are provided at accurate positions, Other screw holes and through-hole pairs in which the cylindrical fixing member 2 is not used by positioning the screw holes and the through-holes at least at two locations are also arranged in a positional relationship suitable for screwing the screws 1. Obviously. Therefore, by engaging the cylindrical fixing member 2 with the first engagement hole 3a, the engagement hole of the third member 5, and the second engagement hole 4a, all of the first and second members 3 are provided. The screw holes and all the through holes provided in the second member 4 and the third member 5 are arranged in a positional relationship suitable for screwing the screws 1.

次に、作業者は、第１部材３、第３部材５、および第２部材４に設けられた全てのねじ穴と貫通穴との組に対して、ねじ１にてそれぞれ螺合固定していく。このとき、円筒固定部材２によって第１部材３に対する第２部材４および第３部材５の位置が固定されているため、螺合作業等によって３者の位置関係がずれることは生じない。なお、円筒固定部材２が係合している組については、ねじ１を貫通穴４ｂおよび円筒固定部材２の筒内に貫装してねじ穴３ｂと螺合させる。このように、本発明は、３つ以上の部材を固定する固定構造に適用することができる。   Next, the operator screwed and fixed each set of screw holes and through holes provided in the first member 3, the third member 5, and the second member 4 with screws 1. Go. At this time, since the positions of the second member 4 and the third member 5 with respect to the first member 3 are fixed by the cylindrical fixing member 2, the positional relationship between the three members does not shift due to screwing work or the like. In addition, about the group with which the cylindrical fixing member 2 is engaged, the screw 1 is penetrated in the through-hole 4b and the cylinder of the cylindrical fixing member 2, and is screwed together with the screw hole 3b. Thus, the present invention can be applied to a fixing structure that fixes three or more members.

また、円筒固定部材２の円筒内径と第２部材４の貫通穴４ｂの内径とを調整することによって、円筒固定部材２を第２部材４から取り外す作業性を向上させることができる。例えば、図１１に示すように、第１係合穴３ａおよび第２係合穴４ａと係合した状態における円筒固定部材２の円筒内径をＤ４とする。この場合、第２部材４の貫通穴４ｂの内径Ｄ３（図４参照）より、内径Ｄ４を小さくすることによって、円筒固定部材２を第２部材４から取り外す作業性を向上させてもかまわない。   Further, the workability of removing the cylindrical fixing member 2 from the second member 4 can be improved by adjusting the cylindrical inner diameter of the cylindrical fixing member 2 and the inner diameter of the through hole 4 b of the second member 4. For example, as shown in FIG. 11, the cylindrical inner diameter of the cylindrical fixing member 2 in a state engaged with the first engagement hole 3a and the second engagement hole 4a is D4. In this case, the workability of removing the cylindrical fixing member 2 from the second member 4 may be improved by making the inner diameter D4 smaller than the inner diameter D3 (see FIG. 4) of the through hole 4b of the second member 4.

具体的には、図１２に示すように、第１部材３から第２部材４を取り外す際、第２部材４側に円筒固定部材２が挿着されていることがあり得る。この場合、第２部材４の貫通穴４ｂ側から円筒固定部材２を押し出せば、容易に円筒固定部材２を取り外すことができる。例えば、内径Ｄ４より大きく、かつ、内径Ｄ３より小さい、外径Ｄ５（すなわち、Ｄ４＜Ｄ５＜Ｄ３）を有する丸棒形状のジグ（補助工具）Ｊを用いて、貫通穴４ｂ側から円筒固定部材２を押し出せば（図示白抜き矢印）、容易に円筒固定部材２を取り外すことができる。   Specifically, as shown in FIG. 12, when removing the second member 4 from the first member 3, the cylindrical fixing member 2 may be inserted on the second member 4 side. In this case, if the cylindrical fixing member 2 is pushed out from the through hole 4b side of the second member 4, the cylindrical fixing member 2 can be easily removed. For example, by using a round bar-shaped jig (auxiliary tool) J having an outer diameter D5 (that is, D4 <D5 <D3) that is larger than the inner diameter D4 and smaller than the inner diameter D3, the cylindrical fixing member from the through hole 4b side. If 2 is pushed out (the white arrow in the figure), the cylindrical fixing member 2 can be easily removed.

本発明に係る固定構造および固定方法は、少なくとも２つの部材を固定するときに互いの位置決めを容易にして作業効率を向上させることができ、２つまたは３つ以上の様々な部材をねじやボルト等で固定する構造や方法として有用である。   The fixing structure and the fixing method according to the present invention can facilitate the positioning of each other when fixing at least two members, thereby improving the working efficiency. Two or more various members can be screwed or bolted. It is useful as a structure or method for fixing with, for example.

本発明の一実施形態に係る固定構造の概略構成を示す側断面図1 is a side sectional view showing a schematic configuration of a fixing structure according to an embodiment of the present invention. 図１に示した接合部付近を拡大した図An enlarged view of the vicinity of the joint shown in FIG. 図１の第１部材３の概略構造を示す側断面図1 is a side sectional view showing a schematic structure of the first member 3 of FIG. 図１の第２部材４の概略構造を示す側断面図1 is a side sectional view showing a schematic structure of the second member 4 of FIG. 図１の円筒固定部材２の第１の例を示す斜視図The perspective view which shows the 1st example of the cylindrical fixing member 2 of FIG. 図１の円筒固定部材２の第２の例を示す斜視図The perspective view which shows the 2nd example of the cylindrical fixing member 2 of FIG. 図１の円筒固定部材２の第３の例を示す斜視図The perspective view which shows the 3rd example of the cylindrical fixing member 2 of FIG. 図１の円筒固定部材２の第４の例を示す斜視図The perspective view which shows the 4th example of the cylindrical fixing member 2 of FIG. 本発明の一実施形態に係る固定構造の概略構成の他の例を示す側断面図Side sectional drawing which shows the other example of schematic structure of the fixing structure which concerns on one Embodiment of this invention. ３つの部材を固定する構造に本発明の一実施形態に係る固定構造を適用した概略構成を示す側断面図Side sectional view which shows schematic structure which applied the fixing structure which concerns on one Embodiment of this invention to the structure which fixes three members 円筒固定部材２の円筒内径Ｄ４＜貫通穴４ｂの内径Ｄ３とした、固定構造の概略構成の一例を示す側断面図Side sectional view showing an example of a schematic configuration of the fixing structure in which the cylindrical inner diameter D4 of the cylindrical fixing member 2 <the inner diameter D3 of the through hole 4b. 円筒固定部材２の円筒内径Ｄ４＜貫通穴４ｂの内径Ｄ３とした固定構造において、円筒固定部材２を取り外す一例を示す図The figure which shows an example which removes the cylindrical fixing member 2 in the fixing structure where the cylindrical inner diameter D4 of the cylindrical fixing member 2 is smaller than the inner diameter D3 of the through hole 4b.

符号の説明Explanation of symbols

１…ねじ
２…円筒固定部材
３…第１部材
４…第２部材
５…第３部材 DESCRIPTION OF SYMBOLS 1 ... Screw 2 ... Cylindrical fixing member 3 ... 1st member 4 ... 2nd member 5 ... 3rd member

Claims (13)

少なくとも２つの部材を固定する固定構造であって、
ねじ穴と、当該ねじ穴と同軸で軸径が異なる所定深さの第１係合穴とが接合面に形成された第１部材と、
貫通穴と、当該貫通穴と同軸で軸径が異なる所定深さの第２係合穴とが接合面に形成された第２部材と、
一方側に前記貫通穴の軸径より大きな軸径の頭部を有し、他方側にねじ部を有するねじと、
前記第１係合穴および前記第２係合穴と係合可能な外径を有し、前記ねじのねじ部外径より大きい内径を有する筒状部材とを備え、
前記筒状部材が前記第１係合穴と前記第２係合穴とに係合した状態で前記第１部材の接合面と前記第２部材の接合面とを対向させて配置し、
前記ねじが前記貫通穴および前記筒状部材内に貫装されて前記ねじ穴と螺合することによって前記第１部材と前記第２部材とが固定される、固定構造。 A fixing structure for fixing at least two members,
A first member in which a screw hole and a first engagement hole having a predetermined depth that is coaxial with the screw hole and has a different shaft diameter are formed on the joint surface;
A second member in which a through hole and a second engagement hole having a predetermined depth that is coaxial with the through hole and has a different shaft diameter are formed on the joint surface;
A screw having a head having a shaft diameter larger than the shaft diameter of the through hole on one side and a screw portion on the other side;
A cylindrical member having an outer diameter engageable with the first engagement hole and the second engagement hole, and having an inner diameter larger than a screw portion outer diameter of the screw;
The cylindrical member is disposed so that the joint surface of the first member and the joint surface of the second member are opposed to each other in a state where the cylindrical member is engaged with the first engagement hole and the second engagement hole.
A fixing structure in which the first member and the second member are fixed by the screw being inserted into the through hole and the tubular member and screwed into the screw hole. 前記筒状部材は、前記第１係合穴に締まりばめで係合する、請求項１に記載の固定構造。   The fixing structure according to claim 1, wherein the tubular member is engaged with the first engagement hole with an interference fit. 前記筒状部材は、円筒部を円筒軸方向に分割する１つの隙間が形成され、当該隙間が縮む方向に弾性変形可能であり、
前記筒状部材の自由外径は、前記第１係合穴の内径より大きく、
前記筒状部材の隙間と対向する端部同士を当接させた当該筒状部材の外径は、前記第１係合穴および前記第２係合穴の内径より小さい、請求項１に記載の固定構造。 The cylindrical member is formed with one gap that divides the cylindrical portion in the cylindrical axis direction, and is elastically deformable in a direction in which the gap is contracted.
The free outer diameter of the cylindrical member is larger than the inner diameter of the first engagement hole,
The outer diameter of the said cylindrical member which contacted the edge parts which oppose the clearance gap of the said cylindrical member is smaller than the internal diameter of a said 1st engagement hole and a said 2nd engagement hole. Fixed structure. 前記筒状部材は、円筒側面両端部にテーパ面を有する、請求項１に記載の固定構造。   The fixing structure according to claim 1, wherein the cylindrical member has tapered surfaces at both ends of a cylindrical side surface. 前記筒状部材は、前記第１係合穴と係合する長さが前記第２係合穴と係合する長さより長い、請求項１に記載の固定構造。   The fixing structure according to claim 1, wherein the tubular member has a length that engages with the first engagement hole is longer than a length that engages with the second engagement hole. 前記筒状部材と係合可能な内径で両主面間を貫通する第３係合穴が形成され、前記第１部材と前記第２部材との間に挟装される第３部材を、さらに備え、
前記筒状部材が前記第１係合穴と前記第３係合穴と前記第２係合穴とに係合した状態で、前記第１部材の接合面と前記第３部材の一方主面とを接面し、かつ、前記第２部材の接合面と前記第３部材の他方主面とを接面することによって、前記第１部材の接合面と前記第２部材の接合面とを対向させて配置し、
前記ねじが前記貫通穴および前記筒状部材内に貫装されて前記ねじ穴と螺合することによって、前記第１部材と前記第２部材とが前記第３部材を挟装した状態で固定される、請求項１に記載の固定構造。 A third engaging hole formed between the first and second members and having an inner diameter engageable with the cylindrical member and penetrating between the two main surfaces; and a third member sandwiched between the first member and the second member; Prepared,
With the tubular member engaged with the first engagement hole, the third engagement hole, and the second engagement hole, the joint surface of the first member and the one main surface of the third member And contacting the joining surface of the second member and the other main surface of the third member so that the joining surface of the first member and the joining surface of the second member are opposed to each other. And place
The first member and the second member are fixed in a state where the third member is sandwiched by the screw being inserted into the through-hole and the cylindrical member and screwed into the screw hole. The fixing structure according to claim 1. 少なくとも２つの部材を固定する固定方法であって、
ねじ穴と、当該ねじ穴と同軸で軸径が異なる所定深さの第１係合穴とが接合面に形成された第１部材に対して、当該第１係合穴に筒状部材の一方端部を係合する工程と、
貫通穴と、当該貫通穴と同軸で軸径が異なる所定深さの第２係合穴とが接合面に形成された第２部材に対して、前記筒状部材の他方端部と当該第２係合穴とを係合させて前記第１部材の接合面と当該第２部材の接合面とを対向させて配置する工程と、
前記貫通穴の軸径より大きな軸径の頭部とねじ部とを有するねじを、前記貫通穴および前記筒状部材内に貫装して前記ねじ穴と螺合させて前記第１部材と前記第２部材とを固定する工程とを含む、固定方法。 A fixing method for fixing at least two members,
In contrast to a first member in which a screw hole and a first engagement hole having a predetermined depth that is coaxial with the screw hole and has a different shaft diameter are formed on the joint surface, one of the cylindrical members is formed in the first engagement hole. Engaging the ends;
The second end of the tubular member and the second end are formed on the joint surface with a through hole and a second engagement hole having a predetermined depth that is coaxial with the through hole and has a different shaft diameter. Engaging the engagement hole and disposing the bonding surface of the first member and the bonding surface of the second member opposite to each other;
A screw having a head having a shaft diameter larger than the shaft diameter of the through hole and a threaded portion is inserted into the through hole and the cylindrical member, and is screwed into the screw hole so that the first member and the screw A fixing method including a step of fixing the second member. 前記一方端部を係合する工程では、前記筒状部材と前記第１係合穴とが締まりばめで係合される、請求項７に記載の固定方法。   The fixing method according to claim 7, wherein in the step of engaging the one end portion, the tubular member and the first engagement hole are engaged by an interference fit. 前記筒状部材は、円筒部を円筒軸方向に分割する１つの隙間が形成され、当該隙間が縮む方向に弾性変形可能であり、
前記筒状部材の自由外径は、前記第１係合穴の内径より大きく、
前記筒状部材の隙間と対向する端部同士を当接させた当該筒状部材の外径は、前記第１係合穴および前記第２係合穴の内径より小さく、
前記一方端部を係合する工程では、前記筒状部材の隙間が縮む方向に縮めて当該筒状部材が前記第１係合穴に挿入して係合される、請求項７に記載の固定方法。 The cylindrical member is formed with one gap that divides the cylindrical portion in the cylindrical axis direction, and is elastically deformable in a direction in which the gap is contracted.
The free outer diameter of the cylindrical member is larger than the inner diameter of the first engagement hole,
The outer diameter of the cylindrical member in which the ends facing the gap of the cylindrical member are in contact with each other is smaller than the inner diameter of the first engagement hole and the second engagement hole,
The fixing according to claim 7, wherein in the step of engaging the one end portion, the cylindrical member is contracted in a direction in which the gap of the cylindrical member is contracted, and the cylindrical member is inserted into the first engagement hole and engaged. Method. 前記一方端部を係合する工程では、前記筒状部材の円筒側面両端部に形成されたテーパ面に沿って前記第１係合穴に前記筒状部材の一方端部を係合させ、
前記接面させる工程では、前記筒状部材のテーパ面に沿って前記第２係合穴に前記筒状部材の他方端部を係合させる、請求項７に記載の固定方法。 In the step of engaging the one end portion, the one end portion of the cylindrical member is engaged with the first engagement hole along the tapered surfaces formed at both ends of the cylindrical side surface of the cylindrical member,
The fixing method according to claim 7, wherein in the contacting step, the other end of the cylindrical member is engaged with the second engagement hole along the tapered surface of the cylindrical member. 前記一方端部を係合する工程において前記筒状部材と前記第１係合穴とを係合させる長さは、前記第１部材の接合面と前記第２部材の接合面とを接面させる工程において当該筒状部材と前記第２係合穴とを係合させる長さより長い、請求項７に記載の固定方法。   The length of engaging the cylindrical member and the first engagement hole in the step of engaging the one end portion makes the joint surface of the first member and the joint surface of the second member contact each other. The fixing method according to claim 7, wherein the fixing method is longer than a length for engaging the cylindrical member and the second engagement hole in the step. 前記対向させて配置する工程では、前記筒状部材と係合可能な内径で両主面間を貫通する第３係合穴が形成されて前記第１部材と前記第２部材との間に挟装される第３部材に対して、前記筒状部材の中間部と当該第３係合穴とを係合させた状態で、前記第１部材の接合面と当該第３部材の一方主面とを接面し、かつ、前記第２部材の接合面と当該第３部材の他方主面とを接面することによって、前記第１部材の接合面と前記第２部材の接合面とが対向して配置され、
前記固定する工程では、前記ねじを前記貫通穴および前記筒状部材内に貫装して前記ねじ穴と螺合させて、前記第１部材と前記第２部材とが前記第３部材を挟装した状態で固定される、請求項７に記載の固定方法。 In the arranging step, the third engagement hole penetrating between the two main surfaces with an inner diameter engageable with the cylindrical member is formed and sandwiched between the first member and the second member. In a state where the intermediate portion of the tubular member and the third engagement hole are engaged with the third member to be mounted, the joint surface of the first member and the one main surface of the third member And the contact surface of the second member and the other main surface of the third member are brought into contact with each other so that the contact surface of the first member and the contact surface of the second member face each other. Arranged,
In the fixing step, the screw is inserted into the through hole and the cylindrical member and screwed into the screw hole, and the first member and the second member sandwich the third member. The fixing method according to claim 7, wherein the fixing method is performed in a fixed state. 少なくとも２つの部材を固定する固定方法であって、
貫通穴と、当該貫通穴と同軸で軸径が異なる所定深さの第１係合穴とが接合面に形成された第１部材に対して、当該第１係合穴に筒状部材の一方端部を係合する工程と、
ねじ穴と、当該ねじ穴と同軸で軸径が異なる所定深さの第２係合穴とが接合面に形成された第２部材に対して、前記筒状部材の他方端部と当該第２係合穴とを係合させて前記第１部材の接合面と当該第２部材の接合面とを対向させて配置する工程と、
前記貫通穴の軸径より大きな軸径の頭部とねじ部とを有するねじを、前記貫通穴および前記筒状部材内に貫装して前記ねじ穴と螺合させて前記第１部材と前記第２部材とを固定する工程とを含む、固定方法。 A fixing method for fixing at least two members,
In contrast to the first member in which the through hole and the first engagement hole having a predetermined depth that is coaxial with the through hole and has a different shaft diameter are formed on the joint surface, one of the cylindrical members is formed in the first engagement hole. Engaging the ends;
The second end portion of the tubular member and the second end of the cylindrical member are formed with respect to a second member in which a screw hole and a second engagement hole having a predetermined depth that is coaxial with the screw hole and has a different shaft diameter are formed on the joint surface Engaging the engagement hole and disposing the bonding surface of the first member and the bonding surface of the second member opposite to each other;
A screw having a head having a shaft diameter larger than the shaft diameter of the through hole and a threaded portion is inserted into the through hole and the cylindrical member, and is screwed into the screw hole so that the first member and the screw A fixing method including a step of fixing the second member.
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JP2010100156A (en) * 2008-10-23 2010-05-06 Ntn Corp Wheel bearing device
JP7467691B2 (en) 2020-06-19 2024-04-15 立聖 藍 Positioning and locking system for plate connections

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JPS5372071A (en) * 1976-12-06 1978-06-27 Kuraaku Doa Co Inc Building panel
JPS5789012A (en) * 1980-11-22 1982-06-03 Mitsui Eng & Shipbuild Co Ltd Elevating type working platform
JPS5844509A (en) * 1981-09-10 1983-03-15 Toshiba Eng Co Ltd State change detector
JPS6188047A (en) * 1984-10-04 1986-05-06 Kubota Ltd Automatic differential mechanism
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JPS6378148A (en) * 1986-09-22 1988-04-08 Fuji Photo Film Co Ltd Picture recorder
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010100156A (en) * 2008-10-23 2010-05-06 Ntn Corp Wheel bearing device
JP7467691B2 (en) 2020-06-19 2024-04-15 立聖 藍 Positioning and locking system for plate connections

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