JP1742366S

JP1742366S - Fall prevention device for overhead crane

Info

Publication number: JP1742366S
Application number: JP2022024840F
Authority: JP
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-04-19
Anticipated expiration: 2043-04-19

Abstract

本願意匠に係る物品は、天井クレーン用落下防止器具に関する。本願意匠に係る天井クレーン用落下防止器具は、天井クレーンに取り付けられる取付部材と、取付部材に左右方向に摺動可能に設けられた爪部を有する係合部材と、を備えている。取付部材は、天井クレーンのフレームを挟んで保持する一対の本体部と、この本体部の上部を連結する上固定部と、本体部の上部を連結する下固定部と、を有している。係合部材は、下固定部において一対の本体部を連結する一対のボルトに沿って摺動可能に取り付けられた一対の連結部と、一対の連結部間に設けられた係合部と、を有している。この係合部は、係合部材の移動方向において離間した互いに対向する一対の爪が設けられており、この一対の爪間にレールのウェブが配置される空間が設けられている。この空間の幅は、レールのウェブの幅よりも若干広く設けられている。また、取付部材の一対の本体部の下端部には、係合部材が一対のボルトに沿って左右に摺動した際に、係合部が収容される切り欠きが設けられている。このような本願意匠に係る天井クレーン用落下防止器具を、取付部材によって天井クレーンに設置し、係合部材の一対の爪間にレールのウェブが位置するように天井クレーンが走行するレールに配置すれば、天井クレーンがレールに沿って移動しても、係合部材の一対の爪がレールのウェブに干渉せず、移動できる。また、天井クレーンが転倒や浮き上がろうとした場合には、係合部材の爪部がレールのウェブに係合して、天井クレーンの転倒を防止することができる。The article according to the design of the present application relates to a fall prevention device for an overhead crane. A fall prevention device for an overhead crane according to the design of the present application includes a mounting member attached to the overhead crane, and an engaging member having a claw portion provided on the mounting member so as to be slidable in the left-right direction. The mounting member has a pair of main body portions that sandwich and hold the frame of the overhead crane, an upper fixing portion that connects the upper portions of the main body portions, and a lower fixing portion that connects the upper portions of the main body portions. The engaging member includes a pair of connecting portions slidably attached along a pair of bolts connecting the pair of body portions in the lower fixing portion, and an engaging portion provided between the pair of connecting portions. have. The engaging portion is provided with a pair of pawls which are spaced apart in the movement direction of the engaging member and face each other, and a space is provided between the pair of pawls in which the web of the rail is arranged. The width of this space is slightly wider than the width of the rail web. Further, the lower ends of the pair of main body portions of the mounting member are provided with cutouts in which the engaging portions are accommodated when the engaging members slide left and right along the pair of bolts. Such a fall prevention device for an overhead crane according to the design of the present application is installed on an overhead crane by means of a mounting member, and arranged on a rail on which the overhead crane travels so that the web of the rail is positioned between a pair of claws of the engaging member. For example, even if the overhead crane moves along the rail, the pair of claws of the engaging member can move without interfering with the web of the rail. In addition, when the overhead crane overturns or tries to float up, the claw portion of the engaging member engages with the web of the rail to prevent the overhead crane from overturning.