Title:
扉開閉装置
Document Type and Number:
Japanese Patent JP7349328
Kind Code:
B2
Abstract:
To allow easy adjustment of the spring force to maintain the door open and close positions.SOLUTION: The base end portion of an arm 30 is rotatably connected to the vicinity of an opening 3 of an opening frame 2 about a first rotation axis L1, and the tip end portion is rotatably connected to a door 5 about a second rotation axis L2. A coil spring 51 for maintaining the closed position and the open position of the door 5 extends linearly in the depth direction of the opening frame 2, one end of which is connected to the opening frame 2, and the other end is connected to the base end of the arm 30 via a spring force adjusting mechanism 6. The spring force adjusting mechanism 6 has a first link 61 rotatably connected to the base end of an arm about a third rotation axis L5 away from the first rotation axis L1, a second link 62 connected to the first link 61 so that the position can be adjusted in the depth direction of the opening frame 2, and an adjusting screw 65 provided on the first link 61 and screwed into the second link 62 to adjust the position of the second link 62.SELECTED DRAWING: Figure 5
Inventors:
Takayuki Irie
Takuyuki Hoshikuki
Takuyuki Hoshikuki
Application Number:
JP2019204965A
Publication Date:
September 22, 2023
Filing Date:
November 12, 2019
Export Citation:
Assignee:
Sugatsune Industry Co., Ltd.
International Classes:
E05F1/14; E05D15/46
Domestic Patent References:
| JP2001248355A | ||||
| JP2011214376A | ||||
| JP2019529753A |
Foreign References:
| US20010039762 |
Attorney, Agent or Firm:
Noboru Watanabe
Harada Thirty Yoshi
Tetsumi Aono
Harada Thirty Yoshi
Tetsumi Aono