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公开(公告)号：US20190032691A1
公开(公告)日：2019-01-31
申请号：US15664598
申请日：2017-07-31
发明人： JHIH-FAN LIN
IPC分类号： F16B7/14
摘要： A telescopic module, which may be incorporated in a desk or a chair to elevate or lower a worksurface, includes a first tube, second tube, and a plurality of rollers. The first tube has a passageway, in which the second tube is received for reciprocation. The rollers are pivoted on the second tube or the first tube, or both to touch an inner side of the first tube and an outer side of the second tube to be turned when the second tube is moving. The rollers may reduce the friction between the first and the second tubes when the second tube is moving.
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公开(公告)号：US20180177288A1
公开(公告)日：2018-06-28
申请号：US15391109
申请日：2016-12-27
发明人： JHIH-FAN LIN
CPC分类号： A47B9/04 , A47B2200/0057 , A47B2200/0062 , H02K7/06
摘要： A height adjustable desk includes a worksurface, a control module, and at least a leg module. The control module has a control circuit and a control panel electrically connected to the control circuit. The leg module has a first leg member, a second leg member and, a driving device. The first leg engages the second leg member for reciprocation. The second leg member is fixed with a block with a threaded hole. The driving device has a motor electrically connected to the control circuit and a screw rod connected to a spindle of the motor and screwed into the threaded hole of the block. When a user operates the control panel, the control circuit commands the motor to rotate the screw rod accordingly to lift or lower the work surface.
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公开(公告)号：US20190337126A1
公开(公告)日：2019-11-07
申请号：US15973021
申请日：2018-05-07
发明人： JHIH-FAN LIN
摘要： A pressure adjusting device of a quick fixture includes a main member, a fixed member fixed to the main member, a movable member movably connected to the main member, and an elastic member received in the main member and having opposite end connected to the fixed member and the movable member to urge the movable member. With the pressure adjusting device the quick fixture can fix various workpieces with different thicknesses.
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公开(公告)号：US20180184799A1
公开(公告)日：2018-07-05
申请号：US15906805
申请日：2018-02-27
发明人： JHIH-FAN LIN
CPC分类号： A47B17/02 , A47B9/04 , A47B13/02 , A47B2200/0052 , A47B2200/0058 , A47B2200/0059 , A47B2200/0061 , A47B2200/0062
摘要： A height adjustable desk includes a worksurface, a first leg and a second leg connected to the worksurface. The first leg is provided with a first motor to drive a first lifting apparatus for telescoping the first leg, while the second leg is provided with a second motor to drive a second lifting apparatus for telescoping the second leg. Each of the first motor and the second motor is provided with a magnetic device and two sensors. The magnetic device has several N-pole sections and S-pole sections, and the sensor detect a change of a magnetic field when the motor is turning. A control unit receives the signals of the sensor, and changes a speed of at least one of the motors until the signals are synchronous again when the control unit found that the signals are not synchronous.
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