JPS58142148U

JPS58142148U - Dump truck rear door opening/closing device

Info

Publication number: JPS58142148U
Application number: JP3974882U
Authority: JP
Inventors: 石原　昌好
Original assignee: 札馬砕石工業株式会社
Priority date: 1982-03-19
Filing date: 1982-03-19
Publication date: 1983-09-24
Also published as: JPS621783Y2

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図は従来の大型ダンプトラックの荷台の１例を示す
ためのもので、ａはダンプトラックの概略側面図、ｂは
荷台後部端面図、Ｃは荷台の概略縦断側面図、第２図は
この考案の１実施例を示す大型ダンプトラックの荷台後
部部分縦断側面図、第３図は第２図のＡ−Ａ線側から矢
印力に見た右半分略図、第４図は第３図のＢ−Ｂ断面図
である。１・・・荷台、２，２ａ・・・床、４，４ａ・・・側壁
、１０・・・後扉、１２・・・突出部、１３・・・ガイ
ド、１４・・・ストッパー、１５・・・被駆動腕、１６
・・・後扉開閉用油シリンダ。Fig. 1 is for showing an example of the loading platform of a conventional large dump truck, in which a is a schematic side view of the dump truck, b is a rear end view of the loading platform, C is a schematic vertical side view of the loading platform, and Figure 2 is a schematic side view of the loading platform. FIG. 3 is a schematic view of the right half of FIG. 2 as seen from line A-A in the direction of the arrow, and FIG. It is a BB sectional view. DESCRIPTION OF SYMBOLS 1... Loading platform, 2, 2a... Floor, 4, 4a... Side wall, 10... Rear door, 12... Projection, 13... Guide, 14... Stopper, 15... ...Driven arm, 16
...Oil cylinder for opening and closing the rear door.

Claims

[Scope of utility model registration request]

A rear door is formed to a size that abuts the floor and the rear edge of both side walls of the dump truck loading platform to close the rear open surface of the loading platform, and the rear door is formed to protrude downward and outward from the lower portions of both sides when the door is in the closed state. a pair of protrusions, a guide extending forward so as to guide the protrusions along the lower surface of the loading platform in accordance with the position of the protrusions when the rear door is closed; and the guide. a stopper for the protrusion provided at the rear end; and a stopper for the protrusion from the rear door in an open state in which the protrusion is displaced forward along the guide and the rear door is displaced substantially along the guide. A dump truck consisting of a driven arm extending to a forward position below the protrusion, and a hydraulic cylinder for opening and closing the rear door provided between the front end of the driven arm and the lower surface of the loading platform in front of the driven arm. Rear door opening/closing device.