JPS6044840U

JPS6044840U - Drop prevention device such as load lifting device

Info

Publication number: JPS6044840U
Application number: JP13370083U
Authority: JP
Inventors: 一信渡辺
Original assignee: 富士重工業株式会社
Priority date: 1983-08-31
Filing date: 1983-08-31
Publication date: 1985-03-29
Also published as: JPS6243867Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案を施した運搬車両の積荷昇降装置を示す
側面図、第２図は同要部拡大側面図、第３図は同右方か
らみた立面図、第４図は係止ピンの係止部を示す斜視図
、第５図および第６図は係止ピンの係止部と反転アーム
との異なる状態での関係を示す一部断面側面図である。２・・・荷１箱、Ａ工ｇ　Ａ２・・・反転アーム、４，
５゜６．７・・・枢着ピン、８・・・連結リンク、９・
・・荷台、　　　　１３・・・降下防止装置、１５・・
・ブラケット、１６・・・係止ピン、１６ａ・・・係止
部、１６ｂ・・・操作部、１７・・・ばね、１８・・・
ストッパ、１９・・・当接リング、２０・・・面取り部
。Figure 1 is a side view showing the cargo lifting device for a transport vehicle to which the present invention has been applied, Figure 2 is an enlarged side view of the main parts, Figure 3 is an elevational view of the same as seen from the right, and Figure 4 is the locking pin. FIGS. 5 and 6 are perspective views showing the locking portion of the locking pin, and partially sectional side views showing the relationship between the locking portion of the locking pin and the reversing arm in different states. 2...1 box of cargo, A work g A2...Reversing arm, 4,
5゜6.7... Pivot pin, 8... Connection link, 9.
...Loading platform, 13...Descent prevention device, 15...
・Bracket, 16... Locking pin, 16a... Locking part, 16b... Operation part, 17... Spring, 18...
Stopper, 19... Abutment ring, 20... Chamfered portion.

Claims

[Scope of utility model registration request]

(1) Preventing the fall of a load lifting device, etc. that maintains the reversing arm in the rising position, such as a load lifting device having a reversing arm that can be rotated between a rising position and a lowering position rotated downward. In the device, a locking pin that contacts the side edge of the reversing arm in the upright position and prevents it from lowering is inserted into a horizontal hole provided in a bracket fixed to the support of the load lifting device. The pin is slidable in the axial direction between a locking position where the locking portion with the side edge of the reversing arm is on the rotational trajectory of the side edge of the reversing arm and a non-locking position where it is off the rotational trajectory. A drop prevention device characterized in that it is rotatably displaceable around an axis, and further, a part of the circumferential surface of the locking portion of the locking pin is chamfered.

(2) The drop prevention device according to claim 1, wherein the locking pin has an operating portion at one end.

(3) The fall prevention device according to claim 1 or 2, wherein a part of the circumferential surface of the locking portion of the locking pin is chamfered to form a flat surface.

(4) The locking pin is urged by elasticity to the non-locking position where the locking part does not lock with the side edge of the reversing arm. The fall prevention device according to claim 1, which is provided with means for holding the reversing arm in a locking position that locks on the side edge of the reversing arm.