Title:
WINCH DEVICE
Document Type and Number:
Japanese Patent JP2021075375
Kind Code:
A
Abstract:
To provide a winch device that can generate an electrical braking force to a pair of motors in a well-balanced manner and that can vary the braking force according to the moving speed of the belt.SOLUTION: A control circuit 51 brakes a pair of drive circuits 52R and 52L with the same control contents to bring the moving speed, or actual speed, of the pair of belts closer to a target speed threshold Va, and varies the control contents of the braking control into three types: closed-circuit braking (weak), regenerative braking (medium), and one-phase energized braking (strong), depending on the difference between the actual speed and the target speed threshold Va. This enables a balanced braking control of the pair of electric motor sections 80 and brings the wheelchair's moving speed, or actual speed, closer to the target speed threshold Va, regardless of the light weight of the wheelchair. This reduces the sense of anxiety for the wheelchair user and the caregivers accompanying them.SELECTED DRAWING: Figure 8
Inventors:
ONOZAWA HIROSHI
SEKINE YOSHITAKA
IRISAWA KAZUKI
SEKINE YOSHITAKA
IRISAWA KAZUKI
Application Number:
JP2019204642A
Publication Date:
May 20, 2021
Filing Date:
November 12, 2019
Export Citation:
Assignee:
MITSUBA CORP
International Classes:
B66D5/30; A61G3/06; A61G3/08; B66D1/46
Domestic Patent References:
| JP2018177451A | 2018-11-15 | |||
| JP2006271662A | 2006-10-12 | |||
| JP2006280400A | 2006-10-19 | |||
| JP2017061381A | 2017-03-30 | |||
| JP2010279545A | 2010-12-16 |
Attorney, Agent or Firm:
Tsutsui International Patent Office