Abstract:
A supporting bracket for adjusting tilt of a liquid crystal display (LCD) includes a fixing member configured for supporting the LCD, a gear capable of rotating in the fixing member, and a sliding member received in the fixing member configured for connecting to the LCD. The sliding member comprises a rack to engage with teeth of the gear. The gear rotates to drive the sliding member moving relative to the fixing member to adjusting the angle of the LCD.

Description:
BACKGROUND 
     1. Technical Field 
     The present invention relates to a supporting bracket for supporting a liquid crystal display (LCD). 
     2. Description of Related Art 
     A liquid crystal display (LCD) is typically connected to a base via a rotatable supporting bracket to adjust the elevation, horizontal position, and tilt of the LCD. A typical supporting bracket requires a locating mechanism to locate the LCD to a special position. The locating mechanism has a complex structure which increases the cost of the supporting bracket. In addition, the typical supporting bracket needs to co-operate with the base, which takes up additional space. 
     Therefore, a new supporting bracket for supporting a liquid crystal display (LCD) is desired to overcome the above-described deficiencies. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an exploded view of an embodiment of a supporting bracket for supporting a LCD, the supporting bracket including a fixing member, a sliding member, an adjusting member, a spring, a gear, and a fastening member; 
         FIG. 2  is an isometric view of a fixing member of the supporting bracket of  FIG. 1 ; 
         FIG. 3  is an isometric view of a fastening member of the supporting bracket of  FIG. 1 ; 
         FIG. 4  is an assembled view of the supporting bracket of  FIG. 1  in one state; 
         FIG. 5  is an assembled view of the supporting bracket of  FIG. 1  in another state; and 
         FIG. 6  is a view of the supporting bracket of  FIG. 1  assembled to an LCD. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Referring to  FIGS. 1 and 2 , an embodiment of a supporting bracket for adjusting an angle of a liquid crystal display (LCD) includes a fixing member  10 , a sliding member  20 , an adjusting member  30 , a spring  40 , a gear  50 , and a fastening member  60 . 
     The fixing member  10  defines an opening into a cavity of the fixing member  10  in a proximal end of the fixing member  10 . The fixing member  10  has an arcuate portion at a distal end. A ring-shaped outlet  11  and an accommodating area  12  is formed on a top wall of the fixing member  10 . The cavity also communicates outside the fixing member  10  through an opening  113  defined in the ring-shaped outlet  11 . Four linear protrusions  13  positioned on the top wall of the fixing member  10  extend from the ring-shaped outlet  11 . The accommodating area  12  includes two arms  121 ,  122 , and a top wall  123  cooperatively defining an accommodating space. A square opening  124  is defined in the top wall  123  of the accommodating area  12 . 
     The sliding member  20  includes a connecting portion  22  for connecting to an LCD, and a sliding portion  27  for accommodating in the cavity of the fixing member  10 . The sliding portion  27  includes a rectangular opening  21  defined therein, and a rack  23  positioned on a side of the opening  21  for engaging with the gear  50 . A plurality of connecting pieces (not labeled) is positioned at the connecting portion  22  for connecting to the LCD. 
     The adjusting member  30  includes a round knob  33  and two elastic slices  31 ,  32  extending from the round knob  33 . The two elastic slices  31 ,  32  form a cutout therebetween, and a protrusion  35  at a lower portion of the elastic slices  31 ,  32 . 
     The gear  50  is ring-shaped, and includes a supporting portion  51  in a middle portion configured to engage with the adjusting member  30 . 
     Referring to  FIG. 3 , the fastening member  60  includes an upright connecting portion  63 . A top wall  61  extends horizontally from a top edge of the connecting portion  63 . A bottom wall  62  extends horizontally from a bottom edge of the connecting portion  63  in a direction opposite to the top wall  61 . A rectangular protrusion  64  extends vertically from a top surface of the top wall  61 . Two separate protrusions  621 ,  622  extend vertically from a bottom surface of the bottom wall  63 . 
     Referring to  FIGS. 4 through 6 , in assembly, the gear  50  is installed on the rack  23  of the sliding member  20 . The sliding portion  27  of the sliding member  20  is received in the cavity of the fixing member  10 . The spring  40  is installed on the linear protrusions  13  on the top wall of the fixing member  10 . The elastic slices  31 ,  32  are compressed to elastically deform to extend through the opening  113  and engage with the gear  50 . The knob  33  is pressed to move toward the gear  50  until the elastic slices  31 ,  32  reach a bottom edge of the gear  50 . The elastic slices  31 ,  32  elastically returns to a normal state and the adjusting member  30  becomes fastened on the gear  50  via the protrusion  35  resisting against the bottom edge of the gear  50 . The supporting portion  51  of the gear  50  is received in the cutout of the adjusting member  30 . The fastening member  60  is pushed to move towards the accommodating area  12 . The arms  121 ,  122  of the accommodating area  12  are compressed to elastically deform by the top wall  61  of the fastening member  60  until the protrusion  64  on the top surface of the top wall  61  is received in the opening  124  on the top wall  123  of the accommodating area  12 , and the arms  121 ,  122  elastically returns to a normal state. A tooth of the gear  50  will become blocked between the protrusions  621 ,  622  to prevent the gear  50  from rotating freely in the fixing member  10 . 
     In use, the bottom of the connecting portion  22  of the sliding member  20  is connected to the back of an LCD  70 , the arcuate portion of the fixing member  10  is placed on a surface such as a desk. To adjust the angle of the LCD  70 , the adjusting member  30  is pressed to move towards the fixing member  10 , thereby compressing the spring  40  until the gear  50  is released from the protrusions  621 ,  622 . The knob  33  is rotated to drive the gear  50  to move along the rack  23 . The sliding member  20  moves relative to the fixing member  10  until a desired length of the supporting bracket is adjusted thereby changing the angle of the LCD  70 . When a desired angle is obtained, the adjusting member  30  is released and the tooth of the gear  50  is engaged with the protrusions  621 ,  622  to prevent the gear  50  from rotating along the rack  23 . 
     It is to be understood, however, that even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.