Title:
引戸のアシスト装置
Document Type and Number:
Japanese Patent JP6803072
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an assisting device for a sliding door capable of improving the spring characteristic of the force accumulating spring, simplifying the structure of the spring to improve the durability of the force accumulating spring, and reducing the manufacturing cost.SOLUTION: A casing 20, an end block 21, and a changeover tool 23 are provided. In the casing 20, a damper 25, a slider 26, a trigger body 29, and a force accumulating spring 31 are arranged. The trigger body 29 is switched to between a standby position and an operating position by the switching tool 23. The trigger body 29 in the standby position is engaged with the catch opening 47 of the casing 20 to hold the force accumulating spring 31 with an accumulated force. Since the trigger body 29 in the operating position is disengaged from the catch opening 47, a door panel 1 can be moved by an elastic force of the force accumulating spring 31. The force accumulating spring 31 is formed of a compression coil spring disposed between the slider 26 and the end block 21, and is held by a spring retainer 32 which is arranged, effectively for the extension and retraction stroke of the force accumulating spring 31, not to allow the force accumulating spring to be curved during deformation.SELECTED DRAWING: Figure 1
Inventors:
Takahiro Yamashita
Application Number:
JP2017140072A
Publication Date:
December 23, 2020
Filing Date:
July 19, 2017
Export Citation:
Assignee:
Skb corporation
International Classes:
E05F1/16; E05F3/04; E05F5/02
Domestic Patent References:
| JP2009013772A | ||||
| JP2009191469A |
Foreign References:
| US20110067313 |
Attorney, Agent or Firm:
Satoshi Morimoto