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公开(公告)号:US11363888B2
公开(公告)日:2022-06-21
申请号:US17214384
申请日:2021-03-26
发明人: Jae Cheon Jun , Do Won Han
摘要: A tiltable chair includes a fixing base having a tiltable housing. A gas cylinder inside the tiltable housing reciprocates in upward and downward directions. A seat plate is on top of the gas cylinder. And an elastic tiltable member is inside the fixing base accommodates a longitudinal lower part of the gas cylinder so the gas cylinder moves tiltably about a vertical axis to the bottom of the fixing base. A fixed frame is on the bottom of the fixing base, a coupling frame is inside the center portion of the fixed frame to accommodate the gas cylinder therein, and a rubber packing is between the fixed frame and the coupling frame and deformed elastically in every direction. The rubber packing has tilt concave grooves formed inward to a given depth from top and underside reduced in width toward the insides thereof to form inclined surfaces.
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公开(公告)号:US20220125203A1
公开(公告)日:2022-04-28
申请号:US17214384
申请日:2021-03-26
发明人: Jae Cheon JUN , Do Won HAN
摘要: The present invention relates to a tiltable chair including: a fixing base having a tiltable housing disposed on an upward protruding dome-shaped center thereof in such a manner as to be movable in an arbitrary direction; a gas cylinder disposed inside the tiltable housing in such a manner as to be linearly reciprocated in upward and downward directions; a seat plate disposed on top of the gas cylinder; and an elastic tiltable member disposed inside the fixing base in such a manner as to accommodate a longitudinal lower part of the gas cylinder therein to allow the gas cylinder to move tiltably about vertical axis to the bottom of the fixing base, wherein the elastic tiltable member includes a fixed frame located on the bottom of the fixing base, a coupling frame located inside the center portion of the fixed frame to accommodate the gas cylinder therein, and a rubber packing located between the fixed frame and the coupling frame and deformed elastically in every direction, wherein the rubber packing has tilt concave grooves formed inward to a given depth from top and underside respectively in such a manner that the tilt concave grooves are reduced in width toward the insides thereof to thus form inclined surfaces.
Accordingly, the tiltable chair is configured to have the elastic tiltable member for accommodating the gas cylinder therein, instead of a large number of coil springs complicated in structure in the conventional practice, so that the tiltable chair can be made simple in structure, thereby preventing the generation of noise when tilted.-
公开(公告)号:US10433644B2
公开(公告)日:2019-10-08
申请号:US16225442
申请日:2018-12-19
摘要: A tiltable stool includes a seat support, a seat, and a tilt mechanism. The seat is mounted to an upper end of the seat support. The tilt mechanism allows the seat to tilt in a desired direction. The tilt mechanism includes a coiled wave spring, an upper spring retainer and a lower spring retainer, a fastener bolt, and a tilt limiter. The upper spring retainer and the lower spring retainer are disposed opposite each other to sandwich the coiled wave spring therebetween. The fastener bolt pivotably holds the upper spring retainer in position. The tilt limiter is disposed inside the coiled wave spring and is secured to either one of the spring retainers. The tilt limiter includes a conical surface thereon which contacts a contact surface when the seat tilts to a predetermined tilt angle. The upper spring retainer is secured to a lower end of the seat support.
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公开(公告)号:US20190116979A1
公开(公告)日:2019-04-25
申请号:US16225442
申请日:2018-12-19
摘要: A tiltable stool includes a seat support, a seat, and a tilt mechanism. The seat is mounted to an upper end of the seat support. The tilt mechanism allows the seat to tilt in a desired direction. The tilt mechanism includes a coiled wave spring, an upper spring retainer and a lower spring retainer, a fastener bolt, and a tilt limiter. The upper spring retainer and the lower spring retainer are disposed opposite each other to sandwich the coiled wave spring therebetween. The fastener bolt pivotably holds the upper spring retainer in position. The tilt limiter is disposed inside the coiled wave spring and is secured to either one of the spring retainers. The tilt limiter includes a conical surface thereon which contacts a contact surface when the seat tilts to a predetermined tilt angle. The upper spring retainer is secured to a lower end of the seat support.
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