JPH0185537U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例の断面説明図、第２
図は同実施例のクラツチ板の断面説明図、第３図
は同実施例の動作説明図、第４図は本考案の実施
例の説明図、第５図ならびに第６図は前記他の実
施例の動作説明図である。 １……本体側の側板、３……ローラ軸、５……
駆動ギヤ、６……伝達ギヤ、７……クラツク板、
８……圧縮ばね、９……形状記憶合金ばね。 Figure 1 is a cross-sectional explanatory diagram of one embodiment of the present invention;
The figure is an explanatory cross-sectional view of the clutch plate of the same embodiment, Figure 3 is an explanatory diagram of the operation of the same embodiment, Figure 4 is an explanatory diagram of the embodiment of the present invention, and Figures 5 and 6 are the other embodiments described above. FIG. 3 is an explanatory diagram of an example operation. 1... Side plate on the main body side, 3... Roller shaft, 5...
Drive gear, 6...Transmission gear, 7...Crack plate,
8... Compression spring, 9... Shape memory alloy spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 本体側に回動可能に支持された搬送ローラのロ
ーラ軸と、このローラ軸に回転自在に軸支し且つ
駆動ギヤに噛み合つて回転する伝達ギヤと、前記
ローラ軸にその軸方向に移動可能に且つその軸と
一体に回転可能に支持したクラツチ板と、前記伝
達ギヤとクラツチ板とを離隔して両者間の摩擦係
合を解除するための第１の付勢部材と、一定の高
温度で前記クラツチ板を前記第１の付勢部材に抗
して伝達ギヤに押圧し摩擦係合させる第２の付勢
部材とを備え、前記第１の付勢部材と前記第２の
付勢部材の少なくとも一方が、形状記憶合金で形
成されていることを特徴とする搬送ローラ。 A roller shaft of a conveyance roller rotatably supported on the main body side, a transmission gear rotatably supported on the roller shaft and rotated by meshing with a drive gear, and a transmission gear movable in the axial direction of the roller shaft. and a clutch plate rotatably supported integrally with the shaft thereof; a first biasing member for separating the transmission gear and the clutch plate to release frictional engagement therebetween; and a second biasing member that presses the clutch plate against the first biasing member and frictionally engages the transmission gear, the first biasing member and the second biasing member A conveyance roller, at least one of which is made of a shape memory alloy.