BIDIRECTIONAL CLUTCH FOR CURTAIN OPENING AND CLOSING DEVICE

Japanese Patent JP3385596

B2

PURPOSE: To smoothly close and open a curtain by fixing a cam plate to the cam shaft of a motor, loosely fitting driven members such as a slider holder, a skirt, a pulley and the like to the same, and suppressing the clutch connection between the projecting part of the slider and the recess part of the skirt in the releasing direction by a spring.
CONSTITUTION: A cam shaft 20 is directly connected to the prime mover side member such as an output shaft 10 of a motor or the like, and a cam plate 21 is fixed to the cam shaft 20. A slider holder 15 and a pulley 30 including a skirt 32 surrounding the outer periphery of the slider holder are loosely fitted to the cam shaft 20. A slider 18 is disposed on the slider holder 15 in such a manner as to move in the radial direction. A clutch projecting part 27 is formed on the outer peripheral surface of the slider 18, and a recess part 26 connected to the projecting part is formed on the inner peripheral surface of the skirt 32. A spring 24 for suppressing the slider 18 always in the direction of releasing the clutch connection is disposed on the slider holder 15, and a cam pin 23 is erected on the slider 18 to be fitted in a cam hole 22 of the cam plate 21. Thus, after the motor is stopped, immediately a curtain is opened and closed by manual drawing without reversion.

Ryuji Fukuzawa
Yasuhiro Okada

JP32516292A

March 10, 2003

December 04, 1992

Click for automatic bibliography generation  

Toso Corporation

A47H5/02; F16D43/02; F16H37/06; (IPC1-7): A47H5/02; F16D43/02; F16H37/06

JP1317408A
JP2245521A
JP4129677A

Hajime Kawakami

Previous Patent: ポリカーボネート樹脂またはポリエステル樹脂の熱安定化方法

Next Patent: 2-PROPANOL DERIVATIVE AND MATERIAL FOR RECORDING USING THE SAME