JPS63171441U

JPS63171441U -

Info

Publication number: JPS63171441U
Application number: JP6347987U
Authority: JP
Priority date: 1987-04-28
Filing date: 1987-04-28
Publication date: 1988-11-08
Also published as: JPH0423950Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の土留用サポートの操作装置
におけるサポートの断面図、第２図及び第３図は
それぞれ第１図の平面図及びその側面図、第４図
はこの考案におけるシリンダヘツドの斜視図、第
５図はこの考案における操作棒の正面図、第６図
及び第７図はそれぞれ第５図の一部断面側面図及
び要部背面図、第８図はホース取外し状態を示す
側面図、第９図は土留用サポートの引上げ状態を
示す側面図、第１０図は圧抜き状態を示す側面図
、第１１図は従来の土留用サポートの使用状態を
示す断面図、第１２図は従来の操作棒を示す側面
図、第１３図及び第１４図は従来の土留用サポー
トの操作装置の操作状態を示す概略断面図である
。符号説明、１…土留用サポート、２…操作棒、
１０…シリンダ、１２…ピストンロツド、１４，
１６…押圧板、１８…シリンダヘツド、２６…Ｌ
形枢支アーム、２８…カプラ、３０…係止環、５
０…棒本体、５２…二又部、５６…第１の当接板
、５８…フツク、６０…支点ピン、６２…第２の
当接板。 Fig. 1 is a cross-sectional view of the support in the earth retaining support operating device of this invention, Figs. 2 and 3 are a plan view and a side view thereof, respectively, of Fig. 1, and Fig. 4 is a perspective view of the cylinder head in this invention. Figure 5 is a front view of the operating rod in this invention, Figures 6 and 7 are a partial cross-sectional side view and rear view of the main part of Figure 5, respectively, and Figure 8 is a side view showing the hose removed state. , Fig. 9 is a side view showing the raised state of the earth retaining support, Fig. 10 is a side view showing the depressurized state, Fig. 11 is a sectional view showing the conventional earth retaining support in use, and Fig. 12 is the conventional earth retaining support. 13 and 14 are schematic cross-sectional views showing the operating state of the conventional earth retaining support operating device. Symbol explanation, 1... Earth retaining support, 2... Operation rod,
10...Cylinder, 12...Piston rod, 14,
16...Press plate, 18...Cylinder head, 26...L
Shape pivot arm, 28...Coupler, 30...Lock ring, 5
0... Rod main body, 52... Forked portion, 56... First abutting plate, 58... Hook, 60... Fulcrum pin, 62... Second abutting plate.

Claims

[Claims for Utility Model Registration] (1) A cylinder and a piston rod, which are fitted to each other so as to be able to expand and contract, and a piston rod, each having a pressure plate attached to the base at both ends thereof, are injected through a coupler provided at the head of the cylinder. By expanding due to the pressurization of the pressurized fluid, the above-mentioned pressing plates lock onto both side braces installed horizontally on the opposing side walls of the excavation trench, thereby preventing the collapse of the earth and sand on the side walls of the above-mentioned excavation trench. An operating device for an earth retaining support, which comprises an earth retaining support that is connected to a coupler of the support, and an operation rod that controls the removal of a pressure fluid supply hose connected to a coupler of the support, the discharge of the pressure fluid, and the lifting of the support. The coupler is installed horizontally on the upper part of the head, and a pair of L are installed on both sides of the coupler.
The operating rod is composed of a horizontally protruding pivot arm and a locking ring attached to the upper part of the pressing plate.
A first abutting plate having a fork for hose removal that can be engaged with the coupler at one end of the rod body, and near the first abutting plate that can be engaged with the locking ring. It has a hook, and is characterized in that the other end of the rod body is provided with a fulcrum pin that can be engaged with both of the L-shaped pivot arms, and a second abutment plate that can be engaged with the coupler. An operating device for earth retaining supports. (2) The operating device for an earth retaining support as set forth in claim 1 of the utility model registration claim, in which the rod main body of the operating rod is bent into a loose dog shape as a whole.