JPH032007U

JPH032007U -

Info

Publication number: JPH032007U
Application number: JP6178489U
Authority: JP
Priority date: 1989-05-26
Filing date: 1989-05-26
Publication date: 1991-01-10
Anticipated expiration: 2004-05-26
Also published as: JPH0728173Y2

Description

[Brief explanation of the drawing]

図は本考案の実施例を示したもので、第１図は
全体の正面図、第２図はブリツジ板を起立姿勢に
した状態の側面図、第３図はストツパ杆部分の一
部を断面にして示す一部拡大正面図、第４図は第
３図の作用を示す一部拡大正面図、第５図はフツ
ク部分の一部を断面にして示す一部拡大正面図で
ある。２……フロア、６……垂直壁面、７……段部、
８……ブリツジ板、１１……流体圧シリンダ、１
２……軸受板、１３……ストツパ杆、１６……駆
動手段。 The figures show an embodiment of the present invention; Fig. 1 is an overall front view, Fig. 2 is a side view with the bridge plate in an upright position, and Fig. 3 is a cross-section of a part of the stopper rod. FIG. 4 is a partially enlarged front view showing the function of FIG. 3, and FIG. 5 is a partially enlarged front view showing a part of the hook section. 2...floor, 6...vertical wall surface, 7...stepped section,
8... Bridge plate, 11... Fluid pressure cylinder, 1
2...Bearing plate, 13...Stopper rod, 16...Driving means.

Claims

[Claims for Utility Model Registration] 1. One end of the bridge plate is pivotally attached to the upper edge corner of the step formed on the floor, and the bridge plate is controlled to rotate from a horizontal position to an upright position by a fluid pressure cylinder. In the movable communication bridge, a bearing plate is protruded from the back surface of the bridge plate a little away from the pivot joint, and a stopper rod rotated by a driving means is pivotally supported on the bearing plate, and the stopper rod is provided below the stopper rod. A fixing block is provided protruding from the vertical wall surface of the corresponding step, and a stopper rod is interposed in the shape of a tension bar between the bearing plate and the fixing block when the bridge plate is in its most upright position, thereby preventing the bridge plate from moving in the horizontal direction due to its own weight. A movable communication bridge characterized by preventing rotation. 2. In a movable connecting bridge in which one end of the bridge plate is pivotally attached to the upper edge corner of a step formed on the floor, and the bridge plate is rotationally controlled from a horizontal position to an upright position by a hydraulic cylinder, the tip A hook piece provided with a key part is pivotally attached to the vertical wall surface of the stepped part below the pivot part of the bridge plate, and the hook piece is loosely inserted into a frame protruding from the back side of the bridge plate, While the bridge plate changes from a horizontal position to an upright position, the lower surface of the hook piece is in sliding contact with the front upper edge of the frame body, and when the bridge plate is in its most upright position, the key part of the hook piece engages with the frame body. A movable communication bridge characterized in that the bridge plate is prevented from over-rotating.