# US 7,464,909 B2 · Supporting shelf

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- Number: US 7,464,909 B2
- Document ID: US7464909B2
- Status: Granted
- Kind: B2
- Application number: 11/648,592
- Filed: 2007-01-03
- Published: 2007-05-17
- Granted: 2008-12-16
- Earliest claimed: 2004-11-12
- Inventors: Chin-Chu Li
- Web page: https://patentgrep.com/patent/US7464909B2

## CPC

- F16M 13/02: for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M 11/08: around a vertical axis {, e.g. panoramic heads (F16M11/12 takes precedence)}
- F16M 11/2064: {for tilting and panning (F16M11/2078 takes precedence)}
- F16M 11/2092: {comprising means allowing depth adjustment, i.e. forward-backward translation of the head relatively to the undercarriage}
- F16M 11/24: changeable in height or length of legs, also for transport only, {e.g. by means of tubes screwed into each other}(F16M11/42 takes precedence)
- F16M 2200/063: Parallelogram arms
- F16M 2200/065: with a special structure, e.g. reinforced or adapted for space reduction
- F16M: FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS

## Abstract

A supporting shelf includes a bearing seat, a first supporting arm, a second supporting arm, a third supporting arm and a setting seat. The bearing seat is pivotally connected with an end of the first supporting arm allowing the supporting shelf to swing left or right. An end of the second supporting arm is connected with another end of the first supporting arm through a pin-connected mechanism. An end of the third supporting arm is connected with another end of the second supporting arm. The setting seat is pivotally connected with a joint. The joint is pivotally connected with another end of the third supporting arm. The setting seat is for fixing a LCD moving up, down, left or right through the joint, whereby the length of the supporting shelf is increased, and the action area of the LCD is extended and is improved agility.

## Claims

### Claim 1

A supporting shelf, comprising:
a bearing seat having a fixing part, a first connecting part pivotally connected with said fixing part and defining two first slideways at two opposing walls thereof, a first pin-connected part having an first axle at opposing ends thereof, each of said first axles fitting within said first slideways; and a first fixing screw rod screwed on said first connecting part and screwed through said first pin-connected part;
a pin-connected mechanism, including a bracket having a front part and a rear part, a second connecting part connected with said front part and defining two second slideways at two opposing walls thereof, a second pin-connected part having an second axle at opposing ends thereof, each of said second axles fitting within said second slideways and a second fixing screw rod screwed on said second connecting part and screwed through said second pin-connected part;
a first supporting arm having an end pivotally connected with said first connecting part and the other end pivotally connected with said rear part of said bracket, said first supporting arm including a first gas spring positioned in an inner portion of said first supporting arm and a first cross rod disposed at said inner portion of said first supporting arm;
a first end of said first gas spring being pivotally connected to said first cross rod;
a second end of said first gas spring being pivotally connected to said first pin-connected part;
a second supporting arm having an end pivotally connected with said front part of said bracket, said second supporting arm including a second gas spring positioned in an inner portion of said second supporting arm and a second cross rod disposed at said inner portion of said second supporting arm;
a first end of said second gas spring being pivotally connected to said second cross rod;
a second end of said second gas spring being pivotally connected to said second pin-connected part;
a third supporting arm having an end pivotally connected with the other end of said second supporting arm;
a joint pivotally connected with the other end of said third supporting arm; and
a setting seat pivotally connected with the joint.

### Claim 2 (depends on 1)

The supporting shelf of claim 1, further comprising a plurality of casings disposed on a side edge of the supporting shelf for receiving wires.

### Claim 3 (depends on 1)

The supporting shelf of claim 1, wherein the first connecting part of the bearing seat pivotally connects vertically with the fixing part through a pivot for the supporting shelf when it is swung left or right.

### Claim 4 (depends on 1)

The supporting shelf of claim 1, wherein the bearing seat further includes two first holding components fixed on said first connecting part, each of said holding components has a breach, said breaches corresponds to each other so as to form a hole for said first fixing screw rod to screw through.

### Claim 5 (depends on 1)

The supporting shelf of claim 1, wherein the pin-connected mechanism further includes a second holding component having a breach, said second connecting part includes a third holding component having a breach, said breaches corresponds to each other so as to form a hole for said second fixing screw rod to screw through.

### Claim 6 (depends on 1)

The supporting shelf of claim 1, wherein the setting seat attaches to a LCD monitor and allows the LCD monitor to move up, down, left or right through the joint.