Leg support structure of computer desk capable of synchronous sliding movement

Information

  • Patent Application
  • 20060071530
  • Publication Number
    20060071530
  • Date Filed
    September 24, 2004
    20 years ago
  • Date Published
    April 06, 2006
    18 years ago
Abstract
The present invention provides a leg support structure of a computer desk capable of synchronous sliding movement, comprising a stand, a leg pad, two L-shaped prop stand and two sliding collars. The stand is formed into an inverse U-shaped, and the leg pad is formed into a planar configuration. The leg pad comprises a lower pivot opening and an upper pivot opening formed on both sides of the leg pad, wherein the locations of the lower openings and the upper pivot openings are corresponding to positions of a lower pivot and two L-shaped prop stands. The lower pivot is positioned though the lower pivots openings of the leg pad in order to pivot to a support located at a center of the two arcing grooves. The L-shaped prop stands, the two sliding collars, the pulley and a slider are engaged in such that various elevation changes can be achieved.
Description
FIELD OF TECHNOLOGY

This invention relates to a leg support structure of a computer desk capable of synchronous sliding movement, particularly to one that may be overturned and stretched along with the outward sliding movement of the slider for placement of a keyboard, to allow a user to place his/her shank in an easy manner.


BACKGROUND OF INVENTION

Most of the conventional OA furniture is not equipped with a part for supporting user's feet, such that the user operating a computer needs to take an upright posture without providing support to various parts of the body, resulting in easy tiring. Though some conventional computer desks are equipped with a part for supporting user's feet, such a part is usually provided at a lower position that does not provide sufficient support to the legs of the human body so as to result in an uncomfortable sitting posture.


This invention, accordingly, aims at overcoming the shortcomings found at the foot support structure of the conventional computer desks.


SUMMARY OF INVENTION

It is an object of this invention to provide a leg support structure of a computer desk capable of synchronous sliding movement, including: a stand configured to an inverse-U shape, the stand being formed with an arcuate groove at each of mid-sections of two suspending portions thereof; a leg pad configured to a planar configuration, having a lateral side pivoted to a center of the two arcuate groove and another lateral side pivoted to a pulley by means of two sliding collars to roll in the arcuate grooves; the two sliding collars being each engaged over the vertical sides of the two L-shaped prop stands, the sliding collars being each joined to an understand of the stand by means the horizontal sides, and a slider at ends thereof for placement of a keyboard, whereby outward sliding movement of the slider upon experiencing an external force actuates the L-shaped prop stands to cause movement of the sliding collars and to cause the pulley to slide downwards in the arcuate grooves, wherein the vertical sliding movement of the sliding collars along the L-shaped prop stands compensates for elevation changes resulted from inward sliding movement of the pulley in the arcuate grooves, subjecting the leg pad to be overturned and stretched along with the sliding movement of the slider to form a leg support structure allow easy use.


It is another object of this invention to provide a leg support structure of a computer desk capable of synchronous sliding movement, wherein the slider closely rests against an underside of the top of the stand in its retracted state, while the leg pad is normal to a front side of the stand, so as to optimize the use of the space without occupying unnecessary space.


It is another object of this invention to provide a leg support structure of a computer desk capable of synchronous sliding movement, where the structure is formed with plural retaining holes on a top of the stand, through which retaining holes bolts pass to be affixed to an underside of the desktop. Or, the stand may be provided with racks at lower bottoms of opposing sides thereof, so as to be placed directly underneath the desktop. Accordingly, this invention allows numerous variations in accordance with the operating surrounding.


The structures and characteristics of this invention can be realized by referring to the appended drawings and explanations of the preferred embodiments.




BRIEF DESCRIPTION OF DRAWINGS


FIG. 1 is an exploded, perspective view of this invention.



FIG. 2 is an assembled, perspective view of this invention.



FIG. 3 is an assembled, partial cross-sectional view of this invention.



FIG. 4 is a schematic view illustrating a state where this invention is retracted while being assembled to a desktop.



FIG. 5 is a schematic view illustrating this invention in operation.



FIG. 6 illustrates the structure of an alternative embodiment of this invention.



FIG. 7 illustrates the structure of the alternative embodiment of this invention under the state of use.




DESCRIPTION OF PREFERRED EMBODIMENTS


FIG. 1 is an exploded, perspective view of this invention. FIG. 2 is an assembled, perspective view of this invention. FIG. 3 is an assembled, partial cross-sectional view of this invention. As clearly shown, this invention mainly includes: a stand 1, leg pads 2, L-shaped prop stands 3 and sliding collars 4, wherein the stand 1 is configured to an inverse-U shape, the stand 1 is formed with an arcuate groove 12 at each of mid-sections of two suspending portions 11 thereof. The arcuate grooves 12 are each formed at an end thereof (top) with a large through hole 121. The stand 1 is further provided at a top thereof with plural retaining holes 13. The leg pad 2 is configured to a planar configuration, and is formed with a lower pivot opening 21 and an upper pivot 22 at corresponding locations of a front and rear face thereof, through which pivot openings 21, 22 a lower pivot 22 may pass so as to pivot to a support 231 located at a center of the two arcuate grooves 12. The horizontal sides of the two L-shaped prop stands 3 are engaged to an underside of the top of the stand 1 by means of a retaining sleeve 32 at midsections thereof. The horizontal sides of the two L-shaped prop stands 3 are joined to a slider 31 at ends thereof for placement of a keyboard. The two sliding collars 4 are each engaged over the vertical sides of the two L-shaped prop stands 3. The sliding collars 4 are each laterally formed with a through hole 41 at outer sides thereof, through which an upper pivot 411 passes to join to a pulley 42 (that is situated in the arcuate grooves 12 through the large through hole 121), and then subsequently pivots to the upper pivot opening 22 of the leg pad 2.



FIG. 4 is a schematic view illustrating a state where this invention is retracted while being assembled to a desktop. It is known from FIG. 5, that is a schematic view illustrating this invention in operation, that the stand 1 employs plural fasteners that pass through the retaining holes 13 so as to be affixed to an underside of the desktop 51 joined to a partition 5. When the slider 31 slides outwards upon experiencing an external force, the L-shaped prop stands 3 would cause movement of the sliding collars 4 and to cause the pulley 4 to slide outwards in the arcuate grooves 12 of the stand 1. At the same time, the sliding collar 4 also slides downwards from the top of the vertical sides of the L-shaped prop stands to compensate for elevation changes resulted from sliding movement of the pulley in the arcuate grooves. At this time, the leg pad is gradually overturned and stretched along with the sliding movement of the slider 31 to form a leg support structure that allows a user to place his/her shank in an easy manner.



FIG. 6 illustrates the structure of an alternative embodiment of this invention. It is known from its state of use as shown in FIG. 7 that, the stand 1 is provided with plural racks 14 at lower bottoms of opposing sides thereof, so as to be placed directly underneath the desktop 51 without being joined to the underside of the desktop 51 to accommodate different operating surrounding.


This invention is related to a novel creation that makes a breakthrough in the art. Aforementioned explanations, however, are directed to the description of preferred embodiments according to this invention. Various changes and implementations can be made by persons skilled in the art without departing from the technical concept of this invention. Since this invention is not limited to the specific details described in connection with the preferred embodiments, changes to certain features of the preferred embodiments without altering the overall basic function of the invention are contemplated within the scope of the appended claims.

Claims
  • 1. A leg support structure of a computer desk capable of synchronous sliding movement, comprising: a stand having an inverse U-shaped, wherein the stand comprises an arcing groove formed at each of midsection of two suspending portions thereof; a leg pad having a planar configuration, wherein the leg pad comprises a lower pivot opening and an upper pivot opening formed on each lateral side of the leg pad, positions of those lower openings are corresponding to location of a lower pivot so that the lower pivot is positioned though the lower pivots openings of the leg pad in order to pivot at a center part of the two arcing grooves; two L-shaped prop stands, each having a horizontal side and a vertical side, wherein the horizontal sides of the two L-shaped prop stands are engaged to an underside of a top portion of the stand by a retaining sleeve located at midsections of the two suspending portions, the horizontal sides are jointed to a slider at ends thereof for a placement of a keyboard; and two sliding collars having outer portions, each engaged over the vertical sides of the two L-shaped prop stands, wherein holes are formed at outer portions of the sliding collars for locating an upper pivot to joint to a pulley and then subsequently, the two sliding collars are pivoted to the upper pivot opening of the leg pad; whereby outward sliding movement of the slider upon experiencing an external force actuates the L-shaped prop stands to cause movement of the sliding collars and to cause the pulley to slide downwards in the arcing grooves, subjecting the leg pad to be overturned and stretched.
  • 2. The leg support structure of a computer desk capable of synchronous sliding movement of claim 1, wherein the stand is provided on a top thereof with plural retaining holes through which plural fasteners pass to joint to an underside of desktop.
  • 3. The leg support structure of a computer desk capable of synchronous sliding movement of claim 1, wherein a plurality of flexible leg parts are formed at bottom portions of the two suspending portions of the stand so that the leg supporting structure can be placed directly underneath a desktop without being attached or connected to undersides of the desktop.