Title:
AUXILIARY DRIVE DEVICE
Document Type and Number:
Japanese Patent JP2018200962
Kind Code:
A
Abstract:
To solve a problem in that, when a drive shaft is driven by energy storage force of an energy storage mechanism, energy storage torque by the energy storage force attenuates toward the final stage of a drive range.SOLUTION: An auxiliary drive device 10 comprises: a drive cam 11 mounted on a drive shaft 2 driven by an energy storage mechanism; a roller 12 that rolls on a cam surface 11a of the drive cam 11; and energizing means 13 holding the roller 12 and energizing the roller 12 toward the cam surface 11a. The cam surface 11a has: a circumferential surface 33 concentric with the drive shaft 2; a first slant 31 by which the roller 12 moves toward the center of the drive cam 11 during rotation of the drive cam 11 by the energy storage mechanism; and a second slant 32 by which the roller 12 moves away from the center of the drive cam 11. This makes it possible for the energy storage mechanism to assist the drive shaft 2 in driving, at the first slant 31.SELECTED DRAWING: Figure 1
Inventors:
FUJITA DAISUKE
Application Number:
JP2017105204A
Publication Date:
December 20, 2018
Filing Date:
May 29, 2017
Export Citation:
Assignee:
DAIHEN CORP
International Classes:
H01F29/04
Domestic Patent References:
| JP2013500419A | 2013-01-07 | |||
| JP2008258259A | 2008-10-23 | |||
| JP2008544505A | 2008-12-04 | |||
| JPS6445026A | 1989-02-17 | |||
| JPH11238635A | 1999-08-31 | |||
| JP2015503230A | 2015-01-29 |
Attorney, Agent or Firm:
Hidekazu Tanikawa
Morimoto Sudo
Morimoto Sudo