|Publication number||USRE40055 E1|
|Application number||US 11/286,441|
|Publication date||Feb 12, 2008|
|Filing date||Nov 25, 2005|
|Priority date||Nov 8, 2001|
|Also published as||US6654233, US20030086241|
|Publication number||11286441, 286441, US RE40055 E1, US RE40055E1, US-E1-RE40055, USRE40055 E1, USRE40055E1|
|Inventors||Hua-Chung Tseng, Chia-Liang Yen, Chu-Hsian Chian, Chang-Long Hsu, Shu-Hsien Chu|
|Original Assignee||Wistron Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (16), Referenced by (2), Classifications (14), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application claims priority of Taiwan patent Application no. 90219221, filed on Nov. 8, 2001.
1. Field of the Invention
This invention relates to a positioning unit for an electronic device, more particularly to a positioning unit for positioning a display module relative to a main body of a portable computer.
2. Description of the Related Art
Therefore, an object of the present invention is to provide a positioning unit for an electronic device that is capable of overcoming the aforementioned drawbacks.
According to the present invention, there is provided a positioning unit for an electronic device that has first and second housings pivoted to each other. The positioning unit includes: a catch member adapted to be mounted movably in the first housing, and having a front end that defines a gap having a width which is reducible when the catch member is moved in a transverse direction from a non-catching position to a catching position and which is expandable when the catch member is moved from the catching position to the non-catching position; and a locking member adapted to be mounted movably on an exterior of the first housing and having an engaging end that extends into the gap and a retaining element that is adapted to releasably engage the second housing. The locking member is operable for moving the catch member from the non-catching position to the catching position when an external force is applied to the locking member. The locking member is movable together with the catch member in the transverse direction from an engaging position, in which, the catch member is moved to the catching position, the engaging end engages the front end of the catch member by virtue of reduction of the width of the gap, and the retaining element is adapted to releasably engage the second housing so as to lock the second housing to a disengaging position, in which, the catch member is moved to the non-catching position, the engaging end disengages from the front end of the catch member by virtue of expansion of the width of the gap, and the retaining element is adapted to disengage from the second housing so as to unlock the second housing.
In drawings which illustrate an embodiment of the invention,
The main body 2 includes a first housing 21 with a first rear end 212 and a first side end 213 transverse to the first rear end 212. The display module 3 includes a second housing 31 with a second rear end 312 and a second side end 313 transverse to the second rear end 312. The second rear end 312 is pivoted to the first rear end 212 via a hinge member (not shown) so as to permit rotation of the display module 3 about a vertical axis and a horizontal axis relative to the main body 2. A retaining groove 92 is formed in the second side end 313 of the second housing 31.
The positioning unit 4 includes: an urging member 63 disposed in the first housing 21; a catch member 6 mounted movably in the first housing 21 adjacent to the first side end 213 and the first rear end 212 of the first housing 21, and having a front end 61 that defines a gap 62 which has a width that is reducible when the catch member 6 is moved inwardly of the first housing 21 in a transverse direction relative to the first side end 213 of the first housing 21 from a non-catching position (see
A constricting member 8 includes a casing 81 that has a rear closed end 812 and a front opening 813 opposite to the rear closed end 812. The catch member 6 includes a sliding block 64 that extends through the front opening 813 and into the casing 81, and a pair of elastic catching arms 623 that extend outwardly of the casing 81 from the sliding block 64 through the front opening 813 and that flare from the front opening 813 to define the gap 62. The catching arms 623 elastically move toward each other so as to reduce the width of the gap 62 when sliding over a periphery of the front opening 813 into the casing 81 upon moving the catch member 6 from the non-catching position to the catching position. The catching arms 623 have opposing anchored free ends 6231 that engage the engaging end 721 of the locking member 7 when the catch member 6 is positioned at the catching position.
The sliding block 64 has a rear end 641 formed with a spring retaining hole 6411, and a front end 622 opposite to the rear end 641. The urging member 63 is in the form of a coil spring that is received in the spring retaining hole 6411 and that abuts against the rear closed end 812 of the casing 81 so as to urge the catch member 6 to move to the non-catching position when the catch member 6 is positioned at the urging position.
The casing 91 has a top wall formed with a slot 8131. The sliding block 64 has a guide 621 that protrudes therefrom into the slot 8131 so as to guide movement of the catch member 6 in the transverse direction.
A mounting seat 5 is mounted securely in the first housing 21 via screw means (not shown) extending through two cast plates 51 and the first housing 2, and has two opposing side walls 52, opposing front end rear top beam 55 interconnecting the side walls 52 and formed with two opposing front and rear top slits 522, and a front wall 54 that extends downwardly from the front top beam 55 and that is formed with a through-hole 521 beneath the front top slit 522 and a notch 523 beneath the through-hole 521. The casing 81 is mounted securely in the mounting seat 5 below and between the front end and rear top beams 55. The locking member 7 includes a button 70 mounted exteriorly on the first side end 212 of the first housing 21, a guide plate 74 that extends from the button 70 through the front and rear top slits 522, and a pressing shaft 72 that extends from the buttons 70 and that has a free end 721′ which defines the engaging end 721 of the locking member 7 and which extends through an opening 251 in the first side end 213 of the first housing 21 and the through-hole 521 and into the gap 62 to abut against the front end 622 of the sliding block 64 so as to push the catch member 6 to move in the transverse direction. The guide plate 74 has two opposite sides formed with two opposing wings 714 that engage a periphery of the front top slit 522 so as to prevent removal of the locking member 7 from the front and rear top slits 522 when the locking member 7 moves from the engaging position to the disengaging position.
The locking member 7 further includes a biasing member 73 that is in the form of a coil spring and that is sleeved on the pressing shaft 72 for facilitating movement of the locking member 7 in the transverse direction.
The locking member 7 further includes a linkage 71 that extends from the button 70 to the second side end 313 of the second housing 31 in a direction transverse to the guide plate 74. The retaining element 91 protrudes from the linkage 71 toward the retaining groove 92. A guide post 713 extends from the button 70 underneath the guide plate 74 through the notch 523 and into the mounting seat 5.
With the inclusion of the positioning unit 4 in the portable computer 1, the drawbacks as encountered in the prior art can be eliminated.
With the invention thus explained, it is apparent that various modifications and variations can be made without departing from the spirit of the present invention. It is therefore intended that the invention be limited only as recited in the appended claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US5081742||Jun 22, 1990||Jan 21, 1992||Kabushiki Kaisha Toshiba||Hinge device having mechanism for stopping movable member at open position|
|US5109572||Sep 21, 1990||May 5, 1992||Hyundai Electronics Ind. Co., Ltd.||Locking hinge device for the LCD screen of a word processor|
|US5178481||Dec 13, 1991||Jan 12, 1993||Kabushiki Kaisha Toshiba||Shaft slide-locking apparatus|
|US5333356||Oct 28, 1992||Aug 2, 1994||Santo Industries Co., Ltd.||Assembly for controlling turn of a hinge pivot|
|US5564163 *||Nov 8, 1994||Oct 15, 1996||Cema Technologies, Inc.||Lockable hinge assembly|
|US5666694||Sep 28, 1995||Sep 16, 1997||Hewlett-Packard Company||Hinge arrangement|
|US5872606||Jan 21, 1998||Feb 16, 1999||Lg Electronics Inc.||Method of mounting liquid crystal display module and apparatus thereof|
|US6034867 *||Jun 19, 1997||Mar 7, 2000||Samsung Electronics Co., Ltd.||Portable computer having a locking assembly|
|US6108868||Mar 24, 1999||Aug 29, 2000||Lin; Davys||Positioning hinge having a cam block|
|US6115886 *||May 12, 1998||Sep 12, 2000||Katoh Electrical Machinery Co., Ltd.||Hinge apparatus|
|US6182330||Nov 20, 1998||Feb 6, 2001||Cema Technologies, Inc.||Self-latching hinge|
|US6305050 *||May 16, 2000||Oct 23, 2001||Sugatsune Kogyo Co., Ltd.||Hinge device to be used for a foldable apparatus|
|US6469802||Jan 20, 1999||Oct 22, 2002||Matsushita Electric Industrial Co., Ltd.||Tilt adjusting mechanism for display|
|US6513197||Apr 19, 2001||Feb 4, 2003||Torqmaster, Inc.||Friction hinge with pop-up feature|
|US6553625 *||Nov 13, 2001||Apr 29, 2003||Chung-Nan Hsteh||Positioning hinge|
|JP2000066609A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8158901||Jun 11, 2009||Apr 17, 2012||Wistron Corporation||Sliding key mechanism capable of being fastened tightly due to interference generated by elastic force and related electronic device|
|US20100155207 *||Jun 11, 2009||Jun 24, 2010||Chin-Lung Fan||Sliding key mechanism capable of being fastened tightly due to interference generated by elastic force and related electronic device|
|U.S. Classification||361/679.27, 16/308, 16/366, 312/223.2|
|International Classification||G06F1/16, E05D11/10|
|Cooperative Classification||Y10T16/547, G06F1/1681, G06F1/1616, G06F1/1679, Y10T16/5389|
|European Classification||G06F1/16P9M6, G06F1/16P1F, G06F1/16P9M4|
|Nov 25, 2005||AS||Assignment|
Owner name: WISTRON CORPORATION, TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TSENG, HUA-CHUNG;YEN, CHIA-LIANG;CHIAN, CHU-HSIAN;AND OTHERS;REEL/FRAME:017280/0771
Effective date: 20051122
|May 25, 2011||FPAY||Fee payment|
Year of fee payment: 8
|Apr 27, 2015||FPAY||Fee payment|
Year of fee payment: 12