Title:
外倒し窓
Document Type and Number:
Japanese Patent JP7303350
Kind Code:
B2
Abstract:
To disclose one example of an outswinging window with a hinge device.SOLUTION: In a hinge device 10 of an outswinging window, a torsion spring 13 applies elastic force in a direction for rotating a sash 3 on an opened position side to a second bracket part 12 when the sash 3 is at a closed position. The torsion spring 13 applies elastic force in a direction for rotating the sash 3 on a closed position side to the second bracket part 12 when the sash 3 is at an opened position. With this, a direction of the elastic force of the torsion spring 13 applied to the second bracket part 12 is reversed in the middle of an opening operation in which the sash 3 oscillates and displaces from the closed position to the opened position. In other words, after the direction of the elastic force is reversed (hereafter referred as at the time of reverse), the torsion spring 13 applies closing force to the sash 3. Therefore, increase in oscillation displacement speed of the sash 3 is restricted after the time of reverse.SELECTED DRAWING: Figure 2
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Inventors:
Kamiya Nobukuni
Application Number:
JP2022077035A
Publication Date:
July 04, 2023
Filing Date:
May 09, 2022
Export Citation:
Assignee:
Chuojo Co., Ltd.
International Classes:
E06B3/38; E05D7/086; E05F1/12
Domestic Patent References:
| JP6317269U | ||||
| JP468182A | ||||
| JP535988U | ||||
| JP5113069A |
Foreign References:
| DE202005000628U1 | ||||
| US3787923 |
Attorney, Agent or Firm:
Nagoya International Patent Attorney Corporation