JPH045551U

JPH045551U -

Info

Publication number: JPH045551U
Application number: JP4700190U
Authority: JP
Priority date: 1990-05-02
Filing date: 1990-05-02
Publication date: 1992-01-20

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る伸縮装置を示
す伸長状態の平面図、第２図は第１図を正面から
見た構成図、第３図は第１図を背面から見た構成
図、第４図は第２図の−線拡大断面図、第５
図は縮小状態の伸縮装置を示す平面図である。１……伸縮部材、２……静止アーム、３……中
間可動アーム、４……先端可動アーム、６……駆
動スプロケツト、８……チエーンベルト、９……
ブラケツト、１１……電動モータ。 Fig. 1 is a plan view of a telescopic device according to an embodiment of the present invention in an extended state, Fig. 2 is a configuration diagram of Fig. 1 seen from the front, and Fig. 3 is a configuration diagram of Fig. 1 seen from the back. Figure 4 is an enlarged sectional view taken along the - line in Figure 2;
The figure is a plan view showing the expansion and contraction device in a contracted state. DESCRIPTION OF SYMBOLS 1... Telescopic member, 2... Stationary arm, 3... Intermediate movable arm, 4... Tip movable arm, 6... Driving sprocket, 8... Chain belt, 9...
Bracket, 11...Electric motor.

Claims

[Claims for Utility Model Registration] (1) A telescoping member formed in a multi-step telescopic shape from an outermost stationary arm and an arbitrary number of movable arms that are movably engaged along the longitudinal direction of this stationary arm. ; a driving wheel and a driven wheel provided on either one of the arms at intervals in the direction of expansion and contraction; a power transmission belt wound between the driving wheel and the driven wheel; one part of the power transmission belt; the part,
A telescoping device comprising: a fixing means for fixing to the other arm; and a drive source incorporated in the telescoping member and driving the drive wheel in forward and reverse rotation. (2) The telescopic device according to claim 1, wherein the driving wheel and the driven wheel are attached to the most advanced movable arm of the plurality of movable arms, and a drive source is built into this movable arm. .