Abstract:
A monitor auto-adjustment system comprises a lifting mechanism and an adjusting mechanism which each links separately to a power unit. The power unit linking to the lifting mechanism is used for moving a sleeve vertically and the other linking to the adjusting mechanism is used for adjusting the pitch angle by means of using a driven-gear to drive a toothlike adjuster installed on a brace connected to a monitor. The power unit drives a gear to accomplish the adjustment of the height and pitch angle of a monitor automatically. The monitor auto-adjustment system improves the convenience and utility much more than any existing manually adjusted monitor.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     This invention relates to a monitor auto-adjustment system and more particularly to a driven-gear driven by a power unit for lifting a monitor or for adjusting the pitch angle of the monitor to increase the utility and the economic benefits much more than a manually adjusted monitor.  
         [0003]     2. Description of the Prior Art  
         [0004]     Referring to  FIG. 1 , an existing table monitor comprises a supporter  1  and a monitor  2 . As the height difference between an user&#39;s sitting posture and a table monitor  2  is caused by different user&#39;s stature and is easily causing the user&#39;s visual fatigue, it is necessary to adjust the height difference by putting the monitor  2  on a higher or lower table just because that the supporter  1  of the monitor  2  is fixed and not able to stretch. This situation causes users a lot of inconvenience.  
         [0005]     Furthermore, as a user can not see the monitor  2  clearly due to bad visual angle, it is necessary to adjust the pitch angle by manually pushing the backside of the monitor  2 . This manual action could damage the panel of the monitor  2  if users push too hard or even to jeopardize themselves because of circuit leakage caused by the damage of the monitor  2 .  
         [0006]     Therefore, considering of the defects and the inconvenience of the existing monitor mentioned as above, this invention is created to increase the value and the range of substantial utility by inventor&#39;s professional knowledge and spirit of pursuing innovation and perfecting.  
       SUMMARY OF THE INVENTION  
       [0007]     The monitor auto-adjustment system comprises a lifting mechanism and an adjusting mechanism. The lifting mechanism contains a pivot bolt edged with a gear driven by a power-gear. The pivot bolt has a middle hole penetrated with a shaft and fixed by a nut. The shaft links a screw extrusion pierced through a sleeve which join the nut tightly. The power-gear is installed on the outside edge of a housing placed under the nut. The housing fixed on a bracket contains the pivot bolt, gear and shaft. About the adjusting mechanism, it contains a base above the sleeve. And both sides of the base are set correspondingly with a left gearbox and a right gearbox. A driven-gear is set on the left gearbox. And a brace is set between the front sides of the left gearbox and the right gearbox. A toothlike adjuster is stretched from the backside of the brace and is driven by the driven-gear.  
         [0008]     And both the lifting mechanism and the adjusting mechanism link a power unit each. The power-gear of the lifting mechanism leads the gear of the pivot bolt to operate and makes the screw extrusion on the shaft spin. And then the sleeve tightened on the nut moves vertically on the screw extrusion. This accomplishes the purpose to adjust the height of a monitor. Moreover, the power-gear of the adjusting mechanism leads the toothlike-gear on the brace linked with a monitor to operate. It accomplishes the purpose to adjust the pitch angle of the brace of a monitor.  
         [0009]     The principal objects of this invention is to improve the convenience and utility much more than ever by using the power unit to drive the driven-gear each on the lifting mechanism and the adjusting mechanism to adjust the height and the pitch angle of monitor automatically. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0010]      FIG. 1  is a rear elevational view of a prior art monitor;  
         [0011]      FIG. 2  is an exploded perspective view of lifting mechanism of a preferred embodiment of the present invention;  
         [0012]      FIG. 3  is an exploded perspective view of adjusting mechanism of a preferred embodiment of the present invention;  
         [0013]      FIG. 4  is an assembly perspective view of  FIG. 2  and  FIG. 3 ;  
         [0014]      FIG. 5  is a cross-sectional view of a preferred embodiment of the present invention;  
         [0015]      FIG. 6  illustrates the preferred embodiment of the present invention of  FIG. 5  in an operating position thereof. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0016]     This invention comprises a lifting mechanism  3 , an adjusting mechanism  4 , two power units  5  and a plate  6 .  
         [0017]     Referring to  FIG. 2 , the lifting mechanism  3  contains a pivot bolt  31  with a gear  33  driven by a power-gear  34 . The pivot bolt  31  has a middle hole  311  penetrated with a shaft  35  and fixed by a nut  36 . The shaft  35  links a screw extrusion  37  piercing through a sleeve  38  and joining the nut  36  tightly. The power-gear  34  is installed on outside edge of a housing  39  and is placed under the nut  36 . The housing  39  contains the pivot bolt  31 , gear  33  and shaft  35  and is fixed on a bracket  32 .  
         [0018]     A penetrated-hole  371  pieced with a latch  372  is set on proper place of the screw extrusion  37  for avoiding the nut  36  to escape from the end of the screw extrusion  37 . The power-gear  34  comprises a motor  341  and a thread-gear  342  which both are fixed on a socket  391  and an opening  392  on outside edge of the housing  39  by a fixing-piece  343  and a bolt  344 . A containing room  393  of the housing  39  is corresponding to the opening  392  for setting the gear  33  to engage the thread-gear  342 . A joined-opening  394  and a U-type opening  395  are set on adjacent sides of the housing  39  for clipping one end of the shaft  35 . On this end of the shaft  35 , a ring  351  is set hollowly on proper position and clipped by a fastener  352  for being joined tightly inside the pivot bolt  31  to avoid the separation of the shaft  35  during operation.  
         [0019]     A ring-edge  361  is stretched from one end of the nut  36  and is engaged on the joined-opening  394  of the housing  39 . And a U-type piece  382  is stretched from one end of the sleeve  38  and is engaged on the U-type opening  395  of the joined-opening  394 . An aperture  362  perforated on proper place of the ring-edge  361  and a sleeve-hole  381  perforated on one side of the sleeve  38  are corresponding tightly and are fixed alternatively by a latch  383  or a bolt.  
         [0020]     Referring to  FIG. 3 , the adjusting mechanism  4  has a base  41  mounted on one end of the sleeve  38 . And a left gearbox  42  and a right gearbox  43  are set correspondingly inside the base  41 . A driven-gear  44  is set on the left gearbox  42 . And a brace  45  is set between one sides of the left gearbox  42  and the right gearbox  43 . A toothlike adjuster  451  is stretched from one side of the brace  45  and is driven by the driven-gear  44 .  
         [0021]     A placing-part  411  is set on the base  41  for containing the left gearbox  42 , the right gearbox  43  and the driven-gear  44 . And a joined-part  412  fixed one end of the sleeve  38  is set on one side of the placing-part  411 . Near the sides of the left gearbox  42  and the right gearbox  43 , several fixed-holes  413  are placed and corresponding to those holes  421 ,  431  on the left gearbox  42  and the right gearbox  43  by latches  414 . A pole  422  on each corner of the left gearbox  42  is joined corresponding to a fixed-hole  432  on each corner of the right gearbox  43  by bolts.  
         [0022]     A pivot-hole  452  is set on the toothlike adjuster  451  of the brace  45  and is joined correspondingly with a pivot-hole  423  on the left gearbox  42  and a pivot-hole  433  on the right gearbox  43  through a pivot  454 . A prominence  453  is set on each opposite side of the brace  45  for joining the plate  6  which connects to a monitor.  
         [0023]     The driven-gear  44  contains a motor thread-gear  441 , a small-gear  442 , a thread-gear  443 , a mother-gear  444 , a child-gear  445  and a gear axle  446 . The motor thread-gear  441 , the mother-gear  444 , the child-gear  445  and the gear axle  446  are set on the left gearbox  42 . And the small-gear  442  and the thread-gear  443  are penetrated by the gear axle  446 . Each end of the gear axle  446  is fixed by a clip  424  set on the side near the brace  45  of the left gearbox  42 .  
         [0024]     Referring to  FIG. 4 , the lifting mechanism  3  and the adjusting mechanism  4  link to the power unit  5  each independently. The power-gear  34  of the lifting mechanism  3  leads the gear  33  on the pivot bolt  31  to operate and makes the screw extrusion  37  joined with the shaft  35  to spin, then to make the nut  36  joined with the sleeve  38  move vertically along the screw extrusion  37 . It achieves the purpose to adjust the height of monitor  2 . And the power-gear  44  of the adjusting mechanism  4  leads the toothlike-gear  451  of the brace  45  joined with the monitor-connecting plate  6  to operate. It accomplishes the purpose to adjust the pitch angle of the brace  45  and the monitor.  
         [0025]     Referring to  FIGS. 5 and 6 , as the height between an user&#39;s sitting posture and a monitor becomes different, usually caused by different user&#39;s stature (such as a child or an adult), the user could just push the power unit  5  of the lifting mechanism  3  to make the motor  341  of the power-gear  34  to operate. In the mean time, the thread-gear  342  of the power-gear  34  drives the gear  33 , and then the gear  33  drives the screw extrusion  37  fixed on the shaft  35 . Because of the limitation of the U-type piece  382  of the sleeve  38  and the U-type opening  395  of the housing  39 , the spin movement of the screw extrusion  37  drives the nut  36  and the sleeve  38  only moving vertically but not twirling. So the sleeve  38  tightened with the nut  36  only moves vertically, and the monitor linked to the base  41  moves vertically also.  
         [0026]     When a user can not see a monitor clearly due to bad visual angle, the user could just push the power unit  5  of the adjusting mechanism  4  to make the motor thread-gear  441  of the driven-gear  44  to drive the small-gear  442 . Then the small-gear  442  drives the small thread-gear  443  to spin. This spin movement causes the mother-gear  444  to operate. In the mean time, the child-gear  445  on the mother-gear  444  is rotated to actuate the toothlike adjuster  451  of the brace  45  connected a monitor through the plate  6 . Then the pitch angle of the monitor could be adjusted automatically.  
         [0027]     To sum up the above descriptions, what using power unit  5  to drive the driven-gears  34  and  44  on the lifting mechanism  3  and the adjusting mechanism  4  can control the height and the pitch angle of a monitor without manual labor. So this invention indeed improves the convenience and utility much more than ever.  
         [0028]     Obviously the invention is susceptible to changes or alternations without defeating its practicability. Therefore, the preferred embodiment shown in the drawings and described herein is not confined.