JPH041891U

JPH041891U -

Info

Publication number: JPH041891U
Application number: JP4133190U
Authority: JP
Priority date: 1990-04-18
Filing date: 1990-04-18
Publication date: 1992-01-09

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図はジヤ
ツキ安全装置の使用している平面図で、その図は
支持棒が段段上方向へ移動されて、錠の凸面と斜
面凸部を接したことに関する図で、第２図は第１
図と同様のジヤツキ安全装置の使用している平面
図で、錠の固定装置の取つ手が上方向へ推された
場合の様子に関する図で、第３図は錠の固定装置
に関する構造の分解斜視図である。１００……ジヤツキ安全装置、１……錠の固定
装置、１１……錠、１１１……錠の凸部、１１２
……凸塊、１２……連接棒、１３……内ばね、１
４……Ｃ形環、１５……外ばね、１６……固定器
、１６１……凹槽、１７……取つ手、１７１……
台形部、２……支持棒、２３……支持棒のスタン
ド、２２……支持棒底部、２１……斜面凸部、３
……ジヤツキ胴体、３１……基盤。 The drawings show an embodiment of the present invention, and Fig. 1 is a plan view of the jack safety device in use. This is a diagram related to what happened, and Figure 2 is the same as Figure 1.
This is a plan view of the same jack safety device as shown in the figure, and shows what happens when the handle of the lock fixing device is pushed upwards. Figure 3 is an exploded view of the structure of the lock fixing device. FIG. 100... Jack safety device, 1... Lock fixing device, 11... Lock, 111... Lock protrusion, 112
... Convex lump, 12 ... Connecting rod, 13 ... Inner spring, 1
4...C-shaped ring, 15...outer spring, 16...fixer, 161...concave tank, 17...handle, 171...
Trapezoidal part, 2...Support rod, 23...Support rod stand, 22...Support rod bottom, 21...Slope convex part, 3
...Jayatsuki torso, 31...base.

Claims

[Claims for Utility Model Registration] (1) A support rod is installed inside the jack body, a base is provided at the lower end of the jack body, and a lock fixing device is attached to the upper edge of the jack body. , the lock passes through the jack body, the protrusion of the lock passes into the inner circle of the jack body, and the lock protrusion is installed at the front end of the lock, and the protrusion of the lock is a slope that slopes from the outside to the inside. A circular convex lump is provided in the center of the lock, and the rear part of the lock is hollow and is inscribed in the connecting rod, inner spring, and C-shaped ring, and an outer spring is fitted along the outer wall of the rear part of the lock. The convex mass is attached to the inside of the lock fixture by running along the inner wall of the concave tank, and the connecting rod protruding outward from the fixture is connected to the trapezoidal part of the handle. Jack safety device. (2) At the bottom of the support rod, there is provided a sloped convex portion located at the top that slopes outward from the inside and a bottom portion of the support rod located at the bottom, and a circular tank is formed between the sloped convexity and the bottom of the support rod. In addition, when a support rod stand is installed at the upper end of the support rod and the support rod is moved upward by a hydraulic device, as the object to be lifted is moved upward, the sloped convex portion of the support rod is moved along the inner wall of the jack, and when the sloping protrusion mentioned above hits the protrusion of the lock, the protrusion of the lock is pushed away backwards, and when the slanted protrusion of the support rod passes the protrusion of the lock, . The jack safety device according to claim 1, wherein the protrusion of the lock is caught in the circular tank, so that the support rod can maintain lifting of the object for a long time.