JP3190041U - Fall prevention hook - Google Patents

Fall prevention hook Download PDF

Info

Publication number
JP3190041U
JP3190041U JP2014000481U JP2014000481U JP3190041U JP 3190041 U JP3190041 U JP 3190041U JP 2014000481 U JP2014000481 U JP 2014000481U JP 2014000481 U JP2014000481 U JP 2014000481U JP 3190041 U JP3190041 U JP 3190041U
Authority
JP
Japan
Prior art keywords
hook
opening
closing lever
hook body
open
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2014000481U
Other languages
Japanese (ja)
Inventor
恵実 山下
恵実 山下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2014000481U priority Critical patent/JP3190041U/en
Application granted granted Critical
Publication of JP3190041U publication Critical patent/JP3190041U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Emergency Lowering Means (AREA)

Abstract

【課題】叩き掛け等の乱暴な取り扱いにも耐えられる強靭かつ軽量な構成で、使用勝手がよく安全な墜落防止用フックを提供する。【解決手段】墜落防止用フック１は、先端に鉤部２１と基端に環状部２２を備えるフック本体２と、フック本体２の鉤口を開閉可能に回動する開閉レバ３と、フック本体２に軸支して開閉レバ３の回動を制御する外れ止め金具４とを備え、開閉レバ３は、略逆Ｙ字形状を形成し、Ｙ字二股の一方に支軸３２１を備えて基端近傍に軸支し他方に別の支軸３２２を備えて外れ止め金具４が有する長孔４１に摺動可能に配設した基部３２と、Ｙ字二股から延びて鉤口を開閉する腕部３１とからなることを特徴とする。【選択図】図１PROBLEM TO BE SOLVED: To provide a fall prevention hook which is easy to use and safe with a tough and lightweight configuration which can withstand rough handling such as hitting. SOLUTION: A fall prevention hook 1 includes a hook main body 2 having a hook portion 21 at the tip and an annular portion 22 at the base end, an opening / closing lever 3 for rotating the hook opening of the hook main body 2 so as to be openable and closable, and a hook main body. The opening / closing lever 3 is provided with a retaining metal fitting 4 that is pivotally supported by 2 and controls the rotation of the opening / closing lever 3. A base 32 that is pivotally supported near the end and has another support shaft 322 on the other side and is slidably arranged in a long hole 41 of the retaining metal fitting 4, and an arm portion that extends from a Y-shaped bifurcation to open and close the hook opening. It is characterized in that it is composed of 31. [Selection diagram] Fig. 1

Description

本考案は、建設工事現場等の高所で作業を行なう際に、作業者の墜落を防止する安全帯や安全ロープの先端に連結する墜落防止用フックに関する。   The present invention relates to a safety belt for preventing a worker from falling and a hook for preventing a fall connected to a tip of a safety rope when working at a high place such as a construction site.

建設工事現場等の高所作業においては、作業員が不安定な状態で作業することが多い。そのため、作業員が片手で所定の部材等に掛け止めすることができるフックを備えた安全帯や安全ロープが使用される。このような安全帯や安全ロープの先端に連結されるフックは、工事現場等に敷設される単管等に掛け止めし得るように形成した鈎部の下方開口部に、開閉レバを揺動可能な状態にして取り付け、開閉レバの揺動を、鈎部の背側に取り付けた外れ止め金具によって行なうように形成される。   In high-altitude work such as construction sites, workers often work in an unstable state. Therefore, a safety belt or a safety rope provided with a hook that can be hooked on a predetermined member or the like with one hand by an operator is used. The hook connected to the tip of the safety belt or safety rope can swing the opening / closing lever in the lower opening of the collar that can be hooked to a single pipe laid on the construction site etc. In this state, the opening and closing lever is rocked by a stopper fitting attached to the back side of the collar.

従来、一般的に使用されているこのようなフックにおける鈎部は、建設現場等の足場として使用されることの多い単管を差し入れ得るフトコロを有するとともに、単管への掛け止めや取り外しを手早く行なえるようにするために、鈎部の先端が斜め下方方向を向いた形となるようにして開口部を形成した構成となっており、また、開口部には、基部側から先端に向けて直線状に延出した構成の開閉レバを揺動可能な状態にして配置させた構成となっており、単管に掛け止めたり、取り外したりする場合には、開閉レバの外縁部に四本の指を掛けてバネ付勢された開閉レバを引き寄せるという操作によって行なう。   Conventionally, the hook part in such a hook that is generally used has a fut roller that can be used to insert a single pipe that is often used as a scaffolding at a construction site, etc., and can be fastened and removed from the single pipe quickly. In order to be able to perform, it has a configuration in which an opening is formed such that the tip of the collar portion is inclined obliquely downward, and the opening is directed from the base side toward the tip The open / close lever with a linearly extending configuration is arranged so as to be able to swing, and when it is hooked or removed from a single pipe, there are four on the outer edge of the open / close lever. The operation is performed by pulling the open / close lever that is spring-biased with a finger.

しかし、基部側から先端に向けて一直線状に延びた開閉レバに四本の指先を掛けて引き寄せる場合、指を手一杯に広げて操作しなければならず、引き寄せる際に指先が下方側に滑り落ちるような状態となり、非常に操作しにくいだけでなく、外縁部が直線状となった開閉レバに四本の指先を掛けて引き寄せた場合、四本の指先が開閉レバの外側に大きく張り出した状態となり、単管に装着させたり、取り外したりする際に、指先が単管に接触してスムーズな装着や取り外し操作が出来ず、場合によっては、開閉レバを開いた状態にして指を移動させなければならず、迅速な作業の妨げとなる。   However, when pulling with four fingertips on an open / close lever that extends straight from the base side toward the tip, you must operate with your fingers fully spread out, and the fingertips slide down when pulling Not only is it difficult to operate, but also when the four fingertips are pulled on and pulled by an open / close lever with a straight outer edge, the four fingertips protrude greatly to the outside of the open / close lever Therefore, when attaching to or removing from a single tube, the fingertip touches the single tube and smooth attachment and removal operations cannot be performed. In some cases, the finger must be moved with the open / close lever open. This hinders quick work.

このような問題を解決するフックとして、特許発明又は考案としていくつか提案されている。例えば、特許文献１は、安全帯や安全ロープの先端に連結する安全フックにあって、工事現場等に敷設される単管等に掛け止める鈎部の下方開口部に、開閉レバを揺動可能な状態にして取り付け、開閉レバの外側縁部を、開閉レバの取り付け基部側から先端側に向けて湾曲状あるいは屈曲状となるよう形成した構成である。   Several hooks for solving such problems have been proposed as patented inventions or devices. For example, Patent Document 1 describes a safety hook connected to a safety belt or the tip of a safety rope, and an opening / closing lever can be swung in a lower opening portion of a hook portion that is hung on a single pipe laid on a construction site or the like. In this state, the outer edge of the opening / closing lever is formed to be curved or bent from the attachment base side to the tip side of the opening / closing lever.

特開２００７―１１７５７３号公報JP 2007-117573 A

確かに、特許文献１に係るフックは、従来の構成のものにみられた使用勝手の悪さを解消するとともに、安全帯や安全ロープの装着や取り外しを手際良く迅速に行なえる構成となっている。ところが、特許文献１に係る発明技術でも未だ下記の問題があった。第１に、建設現場においては、フックを単管等に取り付ける際、叩き掛けという乱暴なフックの取り扱いが少なからずあり、フックが叩き掛けされると、強い衝撃がフック本体と外れ止め金具との噛み合わせに加わり、変形しかねない。第２に、高所作業において墜落の危険性は、フックの取付け時よりも取外し時の方が高いことから、開閉レバと外し止め金具の操作における安全性をより配慮した構成とすることが求められる。   Certainly, the hook according to Patent Document 1 has a configuration that can easily and quickly attach and remove the safety belt and the safety rope while eliminating the inconvenience of use that has been seen in the conventional configuration. . However, the invention technique according to Patent Document 1 still has the following problems. First, at construction sites, when attaching a hook to a single pipe, there is a lot of rough handling of the hook, and when the hook is hit, a strong impact is generated between the hook body and the locking bracket. Participates in the meshing and may deform. Secondly, the risk of a crash during high-altitude work is higher when the hook is removed than when the hook is attached. It is done.

本考案は、このような問題に鑑み、叩き掛け等の乱暴な取り扱いにも耐えられる強靭かつ軽量な構成で、使用勝手がよく安全な墜落防止用フックを提案することを課題とする。   In view of such problems, the present invention has an object of proposing a fall prevention hook that is strong and light in weight and can withstand rough handling such as hitting and is safe to use.

本考案に係る墜落防止用フックは、先端に鉤部と基端に環状部を備えるフック本体と、フック本体の鉤口を開閉可能に回動する開閉レバと、フック本体に軸支して開閉レバの回動を制御する外れ止め金具とを備え、開閉レバは、略逆Ｙ字形状を形成し、Ｙ字二股の一方に支軸を備えて基端近傍に軸支し他方に別の支軸を備えて外れ止め金具が有する長孔に摺動可能に配設した基部と、Ｙ字二股から延びて鉤口を開閉する腕部とからなる、ことを特徴とする。   The fall prevention hook according to the present invention includes a hook body having a collar portion at the tip and an annular portion at the base end, an opening / closing lever that pivots so as to open and close the hook opening of the hook body, and pivoting on the hook body. The open / close lever is formed in a substantially inverted Y shape, has a support shaft on one side of the Y-shaped bifurcation, is supported near the base end, and another support is provided on the other side. A base portion provided with a shaft and slidably disposed in a long hole of the stopper fitting and an arm portion extending from the Y-shaped fork to open and close the shed are characterized.

また、開閉レバは、外側縁部が前記基部側から前記腕部側に向けて湾曲状又は屈曲状に形成されさらに、手指が収まるよう複数の凹部を備えるとよい。さらに、開閉レバは、Ｙ字二股が内側に湾曲した形状であって、フック本体の鉤口を開いた状態において、フック本体の前記環状部の孔を塞がないような形状にすると都合がよい。またさらに、開閉レバは、腕部の外側縁部先端近傍に凸部を備えることにより、使用者の指がすべることを防止するようにしてもよい。なお、フック本体と開閉レバと外し止め金具とは、鋳造アルミからなるようにすれば、軽量かつ強靭なフックを実現することができる。   In addition, the open / close lever may have an outer edge formed in a curved shape or a bent shape from the base portion side toward the arm portion side, and further includes a plurality of concave portions so that fingers can be accommodated. Furthermore, it is convenient that the opening / closing lever has a shape in which the Y-shaped fork is curved inward and does not block the hole of the annular portion of the hook body when the hook body is opened. . Furthermore, the open / close lever may be provided with a convex portion near the outer edge of the arm portion to prevent the user's finger from slipping. In addition, if the hook body, the opening / closing lever, and the stopper fitting are made of cast aluminum, a lightweight and strong hook can be realized.

本考案に係る安全帯や安全ロープの先端に連結するフック本体は、上記のような構成であって、フック本体を単管に掛け止めたり、取り外したりする場合、開閉レバの湾曲部や屈折部の凹部に指先を掛けて操作できるため、従来のもののように指を手一杯広げて握る必要がないため、非常に握り易く、また、握った際に指が下方側に向って滑り落ちるということがなくなり、単管への装着や取り外しを手際よく迅速に行ない得る。また、開閉レバに指先を掛けて握った場合、指先が開閉レバに形成された湾曲部や屈折部の凹部に沈み込んだ状態となるため、単管への装着や取り外しの際、指先が単管に接触するようなことがなく、単管への装着や取り外しを手際よく迅速に行ない得る。   The hook body connected to the tip of the safety belt or safety rope according to the present invention is configured as described above, and when the hook body is hooked on or removed from a single pipe, the bent portion or the refracting portion of the opening / closing lever Because it can be operated by placing your fingertips on the recesses of your fingers, it is not necessary to spread your fingers as wide as the conventional one, so it is very easy to grip, and when you grip it, your fingers slide down downward It can be quickly and easily installed and removed from a single tube. In addition, when a fingertip is placed on the opening / closing lever and gripped, the fingertip sinks into the curved part or concave part of the bending part formed on the opening / closing lever. There is no contact with the tube, and it can be quickly and easily attached to and detached from the single tube.

さらに、開閉レバを上記のような構成にすれば、強い衝撃がフック本体と外れ止め金具との噛み合わせに加わったとしても、変形しにくい強靭な構造となる。   Further, when the opening / closing lever is configured as described above, even if a strong impact is applied to the engagement between the hook main body and the stopper metal fitting, a tough structure is obtained that is not easily deformed.

またさらに、フック本体と開閉レバと外し止め金具とを鋳造アルミからなるようにすれば、軽量かつ強靭なフックを実現することができ、高所作業者の作業負担を軽減できる。   Furthermore, if the hook body, the opening / closing lever, and the stopper fitting are made of cast aluminum, a light and strong hook can be realized, and the work burden on the operator at high places can be reduced.

本考案に係るフックの一例を示す概略正面図である。It is a schematic front view which shows an example of the hook which concerns on this invention. 図１に係るフックの開閉レバの構成を示す概略正面図である。It is a schematic front view which shows the structure of the opening-and-closing lever of the hook concerning FIG. 本考案に係るフックの鉤口が開いた状態を示す概略正面図である。It is a schematic front view which shows the state which the opening of the hook concerning this invention opened. 本考案に係るフックの開閉操作を示す図である。It is a figure which shows the opening / closing operation | movement of the hook which concerns on this invention.

以下、本考案の実施例を図面に基づき詳細に説明する。各図において、同一部分には同一番号を付し、重複する説明は省略する。また、図面は、本考案を理解するために誇張して表現している場合もあり、必ずしも縮尺どおり精緻に表したものではないことに留意されたい。なお、本考案は下記に示される実施例に限られるものではない。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the same number is attached | subjected to the same part, and the overlapping description is abbreviate | omitted. It should be noted that the drawings may be exaggerated to understand the present invention, and are not necessarily shown to scale. In addition, this invention is not restricted to the Example shown below.

実施例１を図面を参照して詳細に説明する。図１は、本考案に係るフックの一例を示す概略正面図である。図２は、図１に係るフックの開閉レバの構成を示す概略正面図である。図３は、本考案に係るフックの鉤口が開いた状態を示す概略正面図である。図４は、本考案に係るフックの開閉操作を示す図である。   Example 1 will be described in detail with reference to the drawings. FIG. 1 is a schematic front view showing an example of a hook according to the present invention. FIG. 2 is a schematic front view showing a configuration of an opening / closing lever of the hook according to FIG. FIG. 3 is a schematic front view showing a state in which the hook of the hook according to the present invention is opened. FIG. 4 is a view showing an operation of opening and closing the hook according to the present invention.

まず、図１を参照しながら、フック１の全体構成を説明する。フック１は、フック本体２と、開閉レバ３と、外れ止め金具４とからなる。フック本体２は、先端に鉤部２１と基端に環状部２２を備える。開閉レバ３は、フック本体２の環状部２２近傍に軸支されて、フック本体２の鉤部２１の下方開口部に、フック本体２の鉤口を開閉可能に回動可能な状態にして取り付けられる。また、外れ止め金具４は、フック本体２の鉤部２１の背側の略中央に軸支して開閉レバ３の回動を制御する構成となっている。なお、フック本体２を鍛造アルミ製で、開閉レバ３と外れ止め金具４をアルミ製とすれば、軽量で強靭なフックが実現するので好適である。   First, the overall configuration of the hook 1 will be described with reference to FIG. The hook 1 includes a hook body 2, an opening / closing lever 3, and a detachment stopper 4. The hook body 2 includes a flange portion 21 at the distal end and an annular portion 22 at the proximal end. The opening / closing lever 3 is pivotally supported in the vicinity of the annular portion 22 of the hook body 2 and is attached to the lower opening of the flange portion 21 of the hook body 2 so that the hook opening of the hook body 2 can be opened and closed. It is done. Further, the stopper metal fitting 4 is configured to control the rotation of the opening / closing lever 3 by being pivotally supported substantially at the center on the back side of the flange portion 21 of the hook body 2. It is preferable that the hook body 2 is made of forged aluminum and the opening / closing lever 3 and the release stopper 4 are made of aluminum because a lightweight and strong hook is realized.

次に、フック本体２を説明すると、鈎部２１は、建設現場等で足場の構成部材として使用されることの多い単管Ｐ（図示しない）に掛け止め装着させ得るフトコロ部を有するとともに、斜め下方側から単管Ｐを挿入させる開口部が形成され、また、環状部２２には、安全ベルトや安全ロープを連結させるための孔２３が形成されている。   Next, the hook body 2 will be described. The collar portion 21 includes a ft roller portion that can be hooked and attached to a single pipe P (not shown) that is often used as a structural member of a scaffold at a construction site or the like. An opening for inserting the single tube P from the lower side is formed, and a hole 23 for connecting a safety belt and a safety rope is formed in the annular portion 22.

開閉レバ３は、鉤部２１に形成した下方開口部に、差し渡し状にして配置させ得る長さに設定され、開閉レバ３の外側縁には、基部側から先端に向けて湾曲状あるは屈曲状になる外側縁部３０が形成されていて、開閉レバ３の外側縁部３０に使用者が指先を掛けた場合、指先がその外側縁部３０に沈み込む構成となっている。また、開閉レバ３は、バネを組み込んで支軸３２１を差し入れることによって、鉤部２１に対して揺動可能な状態として取り付けられ、常時はバネによって、鉤部２１の開口部を閉鎖した状態となるように構成される。   The opening / closing lever 3 is set to a length that can be arranged in a passing manner in the lower opening formed in the flange portion 21, and the outer edge of the opening / closing lever 3 is curved or bent from the base side to the tip. An outer edge 30 is formed, and when the user puts the fingertip on the outer edge 30 of the open / close lever 3, the fingertip sinks into the outer edge 30. Further, the opening / closing lever 3 is attached as a swingable state with respect to the flange portion 21 by inserting a support shaft 321 by incorporating a spring, and the opening portion of the flange portion 21 is normally closed by the spring. It is comprised so that.

外れ止め金具４は、鉤部２１の背側に位置させるとともに、バネを組み込んで支軸４２１を差し入れて、フック本体２の背側略中央に軸支することによって、鉤部２１に対して揺動可能な状態にして取り付けられ、常時はバネによって、フック本体２の背部外側方向に付勢された構成となっている。また、外れ止め金具４は、その下方側に長孔４１を形成し、長孔４１に開閉レバ３の支軸３２２が取り付けられ、図１に示すとおり、支軸３２２は、常時は長孔４１の屈折部分に入り込み、開閉レバ３をロック状態にする一方、使用に際して外れ止め金具４を握り締めた場合、後述するとおり、支軸３２２が屈折部分から外れて長孔４１の略円弧部分に移行し、それによって、開閉レバ３のロック状態が解除されて、開閉レバ３を開け得る構成となっている。このように、開閉レバ３のロック状態が解除されると、図３に示すとおり、フック１の鉤口が開かれた状態となる。   The detachment stopper 4 is positioned on the back side of the collar part 21, and a spring is incorporated to insert the support shaft 421, and is pivotally supported approximately at the center on the back side of the hook body 2. It is attached in a movable state and is normally biased toward the outside of the back portion of the hook body 2 by a spring. Further, the stopper metal 4 has a long hole 41 formed on the lower side thereof, and a support shaft 322 of the opening / closing lever 3 is attached to the long hole 41. As shown in FIG. In the case where the open / close lever 3 is locked and the detachment stopper 4 is squeezed in use, the support shaft 322 is disengaged from the refracted portion and moves to the substantially arc portion of the long hole 41 as described later. Thereby, the lock state of the opening / closing lever 3 is released, and the opening / closing lever 3 can be opened. Thus, when the lock state of the opening / closing lever 3 is released, the hook of the hook 1 is opened as shown in FIG.

次に、図２を参照して、開閉レバ３の構成について詳細に説明する。図２に示すとおり、開閉レバ３は、略逆Ｙ字形状を形成していて、いわばジェット機を上から見たような形状となっており、鉤部２１に向かって伸びる腕部３１と、Ｙ字二股の基部３２とを備える。Ｙ字二股の基部３２の一方に支軸３２１を備えて、フック本体２の環状部２２の孔３２１の上方近傍に軸支し、他方に別の支軸３２２を外れ止め金具４が有する長孔４１に摺動可能に軸支している。   Next, the configuration of the opening / closing lever 3 will be described in detail with reference to FIG. As shown in FIG. 2, the opening / closing lever 3 has a substantially inverted Y shape, which is a shape as seen from above the jet aircraft, and has an arm portion 31 extending toward the collar portion 21, and Y And a bifurcated base 32. A long hole provided with a support shaft 321 on one side of the base portion 32 of the Y-shaped fork, and supported in the vicinity of the upper portion of the hole 321 of the annular portion 22 of the hook body 2, and the other mounting shaft 322 on the other side. 41 is slidably supported on the shaft.

また、開閉レバ３の外側縁部３０は、前述したとおり、基部側から先端側に向けて湾曲状あるは屈曲状に形成されており、凹部３０１、３０２、３０３、３０４を備えている。開閉レバ３の外側縁部３０に使用者が指先を掛けた場合、人差し指の指先が凹部３０１に、中指の指先が凹部３０２に、薬指の指先が凹部３０３に、小指の指先が凹部３０４に沈み込む構成となっており、指の滑りを防止する。なお、凹部の数は四つに限定されず、所望の凹部を備えてよい。また、外側縁部３０の先端側に凸部３１０を構成すれば、なお一層の指の滑り防止効果が増加する。   Further, as described above, the outer edge 30 of the opening / closing lever 3 is formed in a curved shape or a bent shape from the base side toward the distal end side, and includes the recesses 301, 302, 303, and 304. When the user puts the fingertip on the outer edge 30 of the opening / closing lever 3, the fingertip of the index finger sinks into the recess 301, the fingertip of the middle finger sinks into the recess 302, the fingertip of the ring finger sinks into the recess 303, and the fingertip of the little finger sinks into the recess 304. And prevents finger slipping. In addition, the number of recessed parts is not limited to four, You may provide a desired recessed part. Moreover, if the convex part 310 is comprised in the front end side of the outer side edge part 30, the further slip prevention effect of a finger will increase.

図４を参照して、フック１の開閉の操作の様子を説明する。図４（ａ）はフック１の鉤口が閉じた状態で、（ｂ）は鉤口が開いた状態を示している。図４（ａ）を参照すると、使用者がフック１を掴むように持つと、開閉レバ３に使用者の人差し指の指先が凹部３０１に、中指の指先が凹部３０２に、薬指の指先が凹部３０３に、小指の指先が凹部３０４にかかる。使用者はフック１を掴むと、外れ止め金具４がフック本体２に対して矢印Ａ方向に搖動する。そうすると、長孔４１に嵌められた開閉レバ３の支軸３２２が矢印Ｂ方向に移動して、開閉レバ３のロック状態が解除される。開閉レバ３のロック状態が解除された状態で、使用者がフック１を掴めば、開閉レバ３は矢印Ｃ方向に負荷され、支軸３２１を中心にして支軸３２２が矢印Ｄ方向に摺動する。その結果、図４（ｂ）に示すフック１の鉤口が開いた状態となる。   With reference to FIG. 4, the manner of opening and closing the hook 1 will be described. FIG. 4A shows a state in which the hook of the hook 1 is closed, and FIG. 4B shows a state in which the hook is opened. Referring to FIG. 4A, when the user holds the hook 1, the fingertip of the user's index finger is in the recess 301, the fingertip of the middle finger is in the recess 302, and the fingertip of the ring finger is in the recess 303. In addition, the fingertip of the little finger hits the recess 304. When the user grasps the hook 1, the stopper metal 4 swings in the direction of arrow A with respect to the hook body 2. Then, the support shaft 322 of the opening / closing lever 3 fitted in the long hole 41 moves in the arrow B direction, and the locking state of the opening / closing lever 3 is released. If the user grasps the hook 1 in the unlocked state of the open / close lever 3, the open / close lever 3 is loaded in the direction of arrow C, and the support shaft 322 slides in the direction of arrow D about the support shaft 321. To do. As a result, the hook of the hook 1 shown in FIG.

以上、本考案に係る墜落防止用フックにおける好ましい実施形態を図示して説明してきたが、本考案の技術的範囲を逸脱することなく種々の変更が可能であることは理解されるであろう。   Although the preferred embodiments of the fall prevention hook according to the present invention have been illustrated and described above, it will be understood that various modifications can be made without departing from the technical scope of the present invention.

本考案に係る墜落防止用フックは、重量が軽く、値ごろ感があって手軽に購入が可能で、作業時の負担が軽減されるため、装着率の向上を促すことにより墜落事故の減少にもつながり、事故における死傷率の大幅な削減に貢献する用具として広く利用することができる。   The fall prevention hook according to the present invention is light in weight, affordable and can be easily purchased, and reduces the burden during work. It can also be widely used as a tool that contributes to a significant reduction in the casualty rate in an accident.

１ フック
２ フック本体
３ 開閉レバ
４ 外れ止め金具
２１ 鉤部
２２ 環状部
２３ 孔
３０ 外側縁部
３１ 腕部
３２ 基部
３０１ ３０２ ３０３ ３０４ 凹部
３１０ 凸部
４１ 長孔
３２１ ３２２ ４２１ 支軸
Ｐ 単管 DESCRIPTION OF SYMBOLS 1 Hook 2 Hook main body 3 Opening / closing lever 4 Detachment metal fitting 21 Girder part 22 Annular part 23 Hole 30 Outer edge part 31 Arm part 32 Base part 301 302 303 304 Recessed part 310 Convex part 41 Long hole 321 322 421 Spindle P Single pipe

Claims (5)

先端に鉤部と基端に環状部を備えるフック本体と、前記フック本体の鉤口を開閉可能に回動する開閉レバと、前記フック本体に軸支して前記開閉レバの回動を制御する外れ止め金具とを備える墜落防止用フックであって、
前記開閉レバは、略逆Ｙ字形状を形成し、Ｙ字二股の一方に支軸を備えて前記基端近傍に軸支し他方に別の支軸を備えて前記外れ止め金具が有する長孔に摺動可能に配設した基部と、Ｙ字二股から延びて鉤口を開閉する腕部とからなることを特徴とする墜落防止用フック。 A hook body having a hook part at the tip and an annular part at the base end, an opening / closing lever that pivots so as to open and close the hook opening of the hook body, and pivoting on the hook body to control the rotation of the opening / closing lever. A hook for preventing a fall provided with a stopper metal,
The open / close lever has a substantially inverted Y-shape, and is provided with a support shaft on one side of the Y-shaped fork, and is supported in the vicinity of the base end, and another support shaft is provided on the other side and is a long hole provided in the stopper fitting. A hook for preventing a fall, comprising: a base portion slidably disposed on the top and an arm portion extending from the Y-shaped fork to open and close the shed. 前記開閉レバは、外側縁部が前記基部側から前記腕部側に向けて湾曲状又は屈曲状に形成されさらに複数の凹部を備えることを特徴とする請求項１に記載の墜落防止用フック。   2. The fall prevention hook according to claim 1, wherein the opening / closing lever has an outer edge formed in a curved shape or a bent shape from the base side toward the arm side, and further includes a plurality of recesses. 前記開閉レバは、前記Ｙ字二股が内側に湾曲した形状であって、前記フック本体の鉤口を開いた状態において、前記フック本体の前記環状部が備える孔を塞がない構成であることを特徴とする請求項１又は２に記載の墜落防止用フック。   The opening / closing lever has a shape in which the Y-shaped fork is curved inward, and has a configuration that does not block a hole provided in the annular portion of the hook body when the hook body is opened. The fall prevention hook of Claim 1 or 2 characterized by the above-mentioned. 前記開閉レバは、前記腕部の外側縁先端近傍に凸部を備えることを特徴とする請求項１ないし３のいずれかに記載の墜落防止用フック。   The fall-preventing hook according to any one of claims 1 to 3, wherein the opening / closing lever includes a convex portion in the vicinity of a tip of an outer edge of the arm portion. 前記フック本体は、鍛造アルミからなることを特徴とする請求項１ないし４のいずれかに記載の墜落防止用フック。
The fall prevention hook according to any one of claims 1 to 4, wherein the hook body is made of forged aluminum.
JP2014000481U 2014-01-31 2014-01-31 Fall prevention hook Expired - Lifetime JP3190041U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014000481U JP3190041U (en) 2014-01-31 2014-01-31 Fall prevention hook

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014000481U JP3190041U (en) 2014-01-31 2014-01-31 Fall prevention hook

Publications (1)

Publication Number Publication Date
JP3190041U true JP3190041U (en) 2014-04-10

Family

ID=78224198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014000481U Expired - Lifetime JP3190041U (en) 2014-01-31 2014-01-31 Fall prevention hook

Country Status (1)

Country Link
JP (1) JP3190041U (en)

Similar Documents

Publication Publication Date Title
USRE47349E1 (en) Hook
US7571944B2 (en) Safety and rescue carabiner holder
EP2935079B1 (en) Lifting hook and safety latch for lifting hook
US3008210A (en) Safety crane hooks
JP2018019806A (en) Safety hook
WO2013113943A1 (en) Safety carabiner comprising a double gate
JP2007117573A (en) Safety hook
JP3190041U (en) Fall prevention hook
EP1596941B1 (en) Safety devices
EP3001047B1 (en) Carabiner
JP6817369B2 (en) Safety handrails on tight scaffolding
CN105905782A (en) Lifting appliance with limiting function
JP6360945B2 (en) Backhoe grip attachment mounting structure
JP7134433B2 (en) safety belt hook
KR20210001511U (en) Safety hook for industrial
JP6161507B2 (en) Safety belt hook
KR101766641B1 (en) Industrial safety hook
JP3225124U (en) Claws
ITTO990649A1 (en) SAFETY DEVICE WITH QUICK CLASP HOOK WITH ENLARGED SUPPORT AND ORTHOGONAL HOOK
JP3196100U (en) Cylindrical article transport jig
JP2021115640A (en) Hook separation preventing metal fitting for tool fall preventing device and its using method
JP2020097070A (en) hammer
JP2011136634A (en) Vehicular handgrip allowing for ease of instantaneous grip
US311285A (en) Bucket-hook for hoisting and conveying apparatus
JP2011230858A (en) Suspension tool of flexible container

Legal Events

Date Code Title Description
R150 Certificate of patent or registration of utility model

Ref document number: 3190041

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R323113

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R323531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term