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公开(公告)号：US5868519A
公开(公告)日：1999-02-09
申请号：US751462
申请日：1996-11-18
CPC分类号： H05K7/1407 , Y10T403/297 , Y10T403/7005 , Y10T403/7111
摘要： A thumbscrew apparatus for fastening a first device to a second device. In a first embodiment, the apparatus comprises a screw attached to the second device and a first cylinder screwed onto the screw for fastening the first device to the second device. The first cylinder has an outboard end with a one-way slot feature that allows a screwdriver to be used to loosen the first cylinder while inhibiting the use of the screwdriver to tighten the cylinder. In a second embodiment, the shaft of the screw has a first portion smaller in diameter than a second portion. The first portion also has a thread pitch smaller than that of the second portion. A second cylinder contained within the first cylinder is screwed onto the second portion of the shaft while the first cylinder is screwed onto the first portion. A pin is used to lock the first cylinder to the second cylinder such that both cylinders are turned at the same revolution. However, since the pitch of the second portion of the shaft is greater than that of the first portion, the second cylinder moves faster along the axis of the screw than the first cylinder. Hence, when both cylinders are being turned in the loosening direction, the second cylinder pushes the screwdriver out of the one-way slot of the outboard end of the first cylinder before the first cylinder reaches the end of its travel.
摘要翻译： 用于将第一装置紧固到第二装置的指旋螺钉装置。 在第一实施例中，该装置包括附接到第二装置的螺钉和拧在螺钉上的用于将第一装置紧固到第二装置的第一气缸。 第一个气缸具有外侧端部，其具有单向槽特征，允许使用螺丝刀来松开第一气缸，同时禁止使用螺丝刀拧紧气缸。 在第二实施例中，螺杆的轴具有直径小于第二部分的第一部分。 第一部分还具有小于第二部分的螺距。 容纳在第一气缸内的第二气缸拧在轴的第二部分上，同时将第一气缸拧到第一部分上。 销用于将第一气缸锁定到第二气缸，使得两个气缸在相同的转动下转动。 然而，由于轴的第二部分的间距大于第一部分的间距，所以第二气缸沿着螺杆的轴线比第一气缸更快地移动。 因此，当两个气缸正在松动方向转动时，第二气缸在第一气缸到达其行程结束之前将螺丝起子从第一气缸外侧的单向槽推出。
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公开(公告)号：US06535391B2
公开(公告)日：2003-03-18
申请号：US09843067
申请日：2001-04-26
申请人： Kenneth Carl Larsen , Benjamin Michael Kreuz , Francis Anthony Kuchar, Jr. , Donald Lee Thompson
发明人： Kenneth Carl Larsen , Benjamin Michael Kreuz , Francis Anthony Kuchar, Jr. , Donald Lee Thompson
IPC分类号： H05K716
摘要： A system and method for front service access to a component or subassembly in a computer system is disclosed. In a preferred embodiment of the present invention, a frame having a front face is provided, as well as a plate configured to move into and out of the front face of the frame. The plate includes a first portion and a second portion coupled to one another via a linking element. A component cage is mounted on the first portion of the plate. The first portion of the plate is moved out of the front face of the frame and is rotated downward via the linking element. In this position, the cage is readily accessible.
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