Source: http://www.google.com/patents/US6796537?dq=6,183,366
Timestamp: 2018-01-19 16:05:10
Document Index: 525551828

Matched Legal Cases: ['arts 21', 'arts 21', 'art 21', 'arts 21', 'arts 21', 'arts 21', 'arts 21', 'arts 21', 'arts 21', 'arts 21', 'arts 21', 'arts 21']

Patent US6796537 - Lifting base for a LCD monitor - Google Patents
A lifting base for a LCD monitor includes a frame, a lifting device and a pair of clamping members. The frame has two rails extending from two sides respectively. The lifting device has a pair of sliding parts and a pair of guiding plates. The sliding parts are connected at the bottom ends with the top...http://www.google.com/patents/US6796537?utm_source=gb-gplus-sharePatent US6796537 - Lifting base for a LCD monitor
Publication number US6796537 B1
Application number US 10/755,306
Publication number 10755306, 755306, US 6796537 B1, US 6796537B1, US-B1-6796537, US6796537 B1, US6796537B1
Inventors Pei-Ching Lin
Original Assignee Pei-Ching Lin
Patent Citations (12), Referenced by (55), Classifications (16), Legal Events (5)
Lifting base for a LCD monitor
US 6796537 B1
A lifting base for a LCD monitor includes a frame, a lifting device and a pair of clamping members. The frame has two rails extending from two sides respectively. The lifting device has a pair of sliding parts and a pair of guiding plates. The sliding parts are connected at the bottom ends with the top ends spreading apart like the shape of an English letter V. Two outer edges of each sliding part are bent to form a guiding rail thereat. The sliding parts are secured with the guiding plates connected to a monitor. The guiding plates are inserted within the rails of the frame. The clamping members are two torque springs in an opposite position. Each clamping member has one end secured to the frame and another end connected with a roller to engage with the rail of each sliding part of the lifting device for locating purpose.
1. A lifting base for a liquid crystal display (LCD) monitor comprising a frame, a lifting device, and a pair of clamping members,
said frame comprising a base with a pair of rails extending from respective sides and opposing with each other;
said lifting device comprising a pair of sliding parts and a pair of guiding plates, said sliding parts being connected at bottom ends with top ends spreading apart like the shape of an English letter V, two outer edges of each sliding part being bent to form a guiding rail thereat, said sliding parts being secured with said guiding plates, said guiding plates being inserted within said rails of said frame;
said clamping members being two torque springs in an opposing position with each other, each clamping member having one end secured to said base of said frame and another end connected with a roller to engage with said rail of each said sliding part.
This invention relates to a lifting base for a LCD monitor, and more particularly to a lifting base to adjust the monitor to a most appropriate position to a user.
With the LCD monitor mass development, the market is gradually increasing. Every product has a lifting base to hold a monitor still and is able to adjust its height.
The adjustment of a prior art uses a spiral spring to balance the weight of the monitor while the spring hangs an extension bar of the monitor. The extension bar then slides along a rail to adjust the height of the monitor.
When the monitor reaches to its highest position, the spiral spring reels back. This balances the weight from the monitor. When the monitor is descended, the spiral spring extends to produce a torque force to balance the monitor.
However, since the spiral spring supports one single side, the extension of the spring will incline towards one side, which leads the monitor to incline as well.
It is the primary object of the present invention to provide a lifting base for a LCD monitor, which can hold the monitor to any predetermined position securely.
It is another object of the present invention to provide a lifting base for a LCD monitor, which is easy to operate.
It is a further object of the present invention to provide a lifting base for a LCD monitor, which is stable and steady.
FIG. 2 is a front view of the present invention, partial sectioned;
FIG. 3 is a side view of the present invention, partial sectioned, and
FIG. 4 is a view similar to FIG. 3, showing an operation of the present invention.
As shown in FIG. 1, the present invention comprises a frame 1, a lifting device 2 and a pair of clamping members 3.
The frame 1 has a base 11 at the bottom. The base 11 has a pair of locating ribs 12 on the top with a hole 121 on each rib 12, and a pair of rails 13 extending upwardly from respective sides of the base 1.
The lifting device 2 comprises a pair of sliding parts 21 and a pair of guiding plates 22. The sliding parts 21 are connected at the bottom ends with the top ends spreading apart like the shape of an English letter V. Two outer edges of each sliding part 21 are bent to form a guiding rail 211 thereat. The bottom end of each guiding plate 22 is formed with a trough 214 thereat. The guiding plates 22 are secured to the sliding parts 21 with bolts 212 and nuts 213. The guiding plates 22 are connected to two sides of a monitor (not shown in the drawings).
Each clamping member 3 is a torque spring having a securing end 31 and the other end connected with a roller 32.
To assemble the present invention, as shown in FIGS. 2 and 3, the two securing ends 31 of the clamping members 3 are inserted into the holes 121 of the locating ribs 12 from respective sides whereas the rollers 32 of the clamping members 3 will engage with each other. The two guiding plates 22 of the lifting device 2 are inserted within the rails 13 of the frame 1. The bottom ends of the sliding parts 21 are slid within the clamping members 3 while the rollers 32 of the clamping members 3 are located in the rails 211 of the sliding parts 21. The clamping members 3 provide a clamping force on the sliding parts 21. Thus the lifting device 2 remains in a straight line moving up and down within the frame 1. The weight of the monitor will be borne by the sliding parts 21 and the clamping members 3 equally, regardless of the height or any movement
To adjust the height of the monitor, simply pull or press the lifting device 2 to lift or to descend the monitor due to the V-shaped design of the sliding parts 21 and the clamping members 3 are tightly engaged with each other. The descent movement of the sliding parts 21 will always be clamped by the rollers 32 of the clamping members 3, regardless of the height, and always be in a steady status, as shown in FIG. 4. To lift the lifting device 2, a user needs to press the lifting device 2 down in a minus force so as to disengage the tight engagement of the rollers 32 of the clamping members 3 and the sliding parts 21, and the lifting device 2 may be pulled upward then. Until it reaches to a desired position, the two rollers 32 of the clamping members 3 will again clamp the sliding parts 21 in a steady manner.
FR2620323A1 * Title not available
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US9271572 Oct 8, 2010 Mar 1, 2016 Paul J. Fenelon Lift system
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WO2005054110A2 * Nov 10, 2004 Jun 16, 2005 Wieslaw Bober Compound lift device
WO2005054110A3 * Nov 10, 2004 Aug 18, 2005 Wieslaw Bober Compound lift device
WO2005104679A2 * Apr 1, 2005 Nov 10, 2005 Wieslaw Bober Device for lifting and directing equipment with video and/or audio information
WO2005104679A3 * Apr 1, 2005 Dec 21, 2006 Wieslaw Bober Device for lifting and directing equipment with video and/or audio information
U.S. Classification 248/162.1, 248/404, 248/149, 248/127, 248/917, 361/679.21
International Classification F16M11/04, F16M11/24
Cooperative Classification Y10S248/917, F16M11/30, F16M2200/048, A47B2200/04, A47B21/0073
European Classification F16M11/30, F16M11/24, F16M11/04
Owner name: SHENG DAH SPRING CO., LTD., TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, PEI-CHING;REEL/FRAME:020638/0362