Abstract:
A supporting device comprises a housing, a support board, a linkage trestle and at least one elastic body. The support board pivots on the housing. The linkage trestle includes a pivot end and a sliding end, the pivot end is pivotally connected to the support board, and the sliding end abuts the housing. At least one elastic body is disposed in the housing, and the elastic body forms a slide channel in the housing, wherein the sliding end is disposed in the slide channel, the sliding end abuts the elastic body, and the elastic body changes the width of the slide channel with the movement of the sliding end such that the elastic body pushes against the sliding end.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present disclosure relates to a supporting device, and more particularly to a supporting device that provides elastic force without a helical torsion spring. 
         [0003]    2. Description of the Related Art 
         [0004]    Using a support to balance and connect two objects is a common method of connection. The traditional support has a helical torsion spring at the pivot place of the support to generate an elastic force to balance the external force on the support. 
         [0005]    However, helical torsion springs are formed in a columnar shape, so it is difficult to reduce the volume thereof. When the object requires a greater elastic force, the area of the cross-section of the helical torsion spring must be larger, and the overall volume of the helical torsion spring will be greater. This limitation of helical torsion springs limits their installation in objects equal to or smaller than a certain size. 
       SUMMARY OF THE INVENTION 
       [0006]    The present disclosure solves the problem by providing a supporting device without a helical torsion spring. 
         [0007]    To solve the problem described above, the present disclosure provides a supporting device. The supporting device includes a housing, a supporting board, a linkage trestle and at least one elastic body The supporting board pivots on the housing. The linkage trestle includes a pivot end and a sliding end. The pivot end pivots on the supporting board, and the sliding end is slideably disposed in the housing. At least one elastic body is disposed in the housing, and the elastic body forms a sliding channel in the housing wherein the sliding end is disposed in the sliding channel, the sliding end abuts the elastic body, and the elastic body changes the width of the sliding channel when the sliding end slides such that the elastic body pushes the sliding end. 
         [0008]    According to said embodiment, the protective structure of the present disclosure at least has the advantages below: Due to the elastic body pressing against the sliding end of the linkage, when the linkage trestle slides along the supporting board, the elastic force of the elastic body is exerted on the linkage trestle to resist external force exerted on the supporting board. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]    These and other objects and advantages of the present disclosure will become apparent from the following description of the accompanying drawings, which disclose several embodiments of the present disclosure. It is to be understood that the drawings are to be used for purposes of illustration only, and not as a definition of the disclosure. 
           [0010]    In the drawings, wherein similar reference numerals denote similar elements throughout the several views: 
           [0011]      FIG. 1  is a structural diagram of one embodiment of the supporting device of the present disclosure. 
           [0012]      FIG. 2  is an exploded diagram of one embodiment of the supporting device of the present disclosure. 
           [0013]      FIG. 3  is a cross-section diagram of the composition of one embodiment of the supporting device of the present disclosure. 
           [0014]      FIG. 4  is an actuator schematic of one embodiment of the supporting device of the present disclosure. 
           [0015]      FIG. 5  is an actuator schematic of one embodiment of the supporting device of the present disclosure. 
           [0016]      FIG. 6  is an actuator schematic of one embodiment of the supporting device of the present disclosure. 
           [0017]      FIG. 7  is a usage diagram of one embodiment of the supporting device of the present disclosure. 
           [0018]      FIG. 8  is a schematic diagram of a second embodiment of the supporting device of the present disclosure. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0019]    As shown in  FIG. 1 , the present application provides a supporting device  1  applied on an electronic device  9  for connecting a machine (not shown), and the distance and the angle between the electronic device  9  and the machine are adjusted by the present device  1 . 
         [0020]    As shown in  FIG. 1 , the supporting device  1  includes a housing  10 , a supporting board  20 , a linkage trestle  30  and two elastic bodies  40 . The housing  10  can be a part of the rear cover of the electronic device  9 . One end of the supporting board  20  pivots with the housing, one end of the linkage trestle  30  pivots on the supporting board  20 , and the other end of the linkage trestle  30  slides on the housing  10 . The elastic bodies  40  are disposed in the housing  10  and the elastic bodies  40  apply force to the linkage trestle  30  to provide recovery force for the linkage trestle  30 . The detailed structures of each component are described as follows. 
         [0021]    As shown in  FIG. 1 ,  FIG. 2 , and  FIG. 3 , the housing  10  includes a capacity groove  11  and a pivot groove  12 . The capacity groove  11  is defined as having a bottom wall  112  and two side walls  111 . The two ends of the linkage trestle  30  are defined as a pivot end  31  and a sliding end  32  separately. The sliding end  32  has a sliding lump  321 , and the sliding lump  321  pivots on the sliding end  32 . In one embodiment of the present disclosure, the elastic body  40  is a V-shaped leaf spring  41 , defined as having an angle  412  and two top ends  413 . According to changes in the distance between the two top ends  413 , the V-shaped leaf spring generates elastic force. The V-shaped leaf spring  41  has a plurality of protrusions arranged at intervals. The two side faces of the pivot groove  12  have pivot holes  121  separately. The elastic body  40  can be a leaf body collocating with a spring (not shown and the leaf body moves to change the length of the spring; therefore, the spring provides elastic force to the leaf body. 
         [0022]    As shown in  FIG. 1 ,  FIG. 2 , and  FIG. 3 , two sides of one end of the supporting board  20  have a pivot shaft  21  separately. The pivot shaft  21  is rotatably disposed in the pivot hole  121  such that one end of the supporting broad can pivot on the housing  10 . The pivot end  31  of the linkage trestle  30  pivots on the supporting board  20 , and the sliding end  32  with the sliding lump  321  presses against the bottom wall  112  of the capacity groove  11 . The two V-shaped leaf springs  41  are placed in the capacity groove  11 , and the top ends  413  of the two V-shaped leaf springs  41  press against the two side walls  111 . The sharp end  412  of the two V-shaped leaf springs  41  is fixed on the bottom wall  112  of the capacity groove  11  via a fixing column  414 . The two V-shaped leaf springs  41  are arranged at intervals; therefore, the two V-shaped leaf springs  41  form a sliding channel C between them such that the elastic body  40  forms the sliding channel C in the capacity groove  11 . According to the compressibility of the V-shaped leaf spring  41 , the gap of the sliding channel C can be adjusted. The sliding lump  321  is disposed in the sliding channel C, and the two V-shaped leaf springs  41  abut against the two ends of the sliding lump  321 . 
         [0023]    The following describes the function of the supporting device  1 . As shown in  FIG. 1 , to conveniently describe it, the following defines the pivot place between supporting board  20  and the housing  10  as the top and the angle  412  near the V-shaped leaf spring  41  as the bottom. However, the present disclosure is not limited to this orientation. 
         [0024]    As shown in  FIG. 4 , when the supporting board  20  does not bear any external force, the supporting board  20  covers the capacity groove  11  (shown in  FIG. 1 ), the pivot end  31  of the linkage trestle  30  is near the bottom wall  112  of the capacity groove  11 , and the sliding end  32  of the linkage trestle  30  is located at the position near the angle  412  of the V-shaped leaf spring  41  in the sliding channel C. At this time, the compression amount of the V-shaped leaf spring  41  is the smallest, or zero. The width of the sliding channel C decreases from top to bottom. 
         [0025]    As shown in  FIG. 5  and  FIG. 6 , when the supporting board  20  bears external force, the supporting board  20  is lifted relative to the housing  10 . The pivot end  31  of the linkage trestle  30  moves away from the bottom wall  112  of the capacity groove  11 , and the sliding lump  321  of the sliding end  32  moves to the position near the angle  413  of the V-shaped leaf spring  41 . As the sliding lump  321  moves, the sliding lump  321  squeezes the V-shaped leaf spring  41 ; therefore, the V-shaped leaf spring  41  generates elastic force to push against the sliding lump  321 , and the touch angle between the V-shaped leaf spring  41  and the sliding lump  321  causes the force exerted on the sliding lump  321  by the V-shaped leaf spring  41  to be exerted in a downward direction. Therefore, the two V-shaped leaf springs  41  collectively exert force in a downward direction on the sliding lump  321 . The force exerted on the sliding lump  321  by the V-shaped leaf spring  41  can resist the external force and thereby lifts the supporting board  20  such that the supporting device  1  is balanced. As shown in  FIG. 7 , when the supporting board  20  is lifted to the outside, the supporting board  20  and the housing  10  generate an angle Θ between them. 
         [0026]    When the supporting board  20  opens outward, the sliding lump  321  moves up and squeezes the two V-shaped leaf springs  41  to generate a greater elastic force. Therefore, when the supporting board  20  is further extended outward, the external force exerted on the supporting board  20  is greater. When the external force exerted on the supporting board  20  is removed, the force exerted on the sliding lump  321  by the V-shaped leaf spring  41  causes the sliding lump  321  to return to the bottom, and the linkage trestle  30  and the supporting board  20  return to the position near the bottom wall  112  of the capacity groove  11 . 
         [0027]    As shown in  FIG. 1  and  FIG. 8 , the V-shaped leaf spring  41  has a plurality of protrusions  411 , and the protrusions  411  are arranged at intervals. The lengths of the intervals between the protrusions  411  are not equal; these intervals of the protrusions  411  regulate the moving distances of the sliding lump  321 . The moving distances of the sliding lump  321  correspond to the angle Θ between the supporting board  20  and the housing  10 . For clarifying the exact corresponding relationship, the following description is provided. 
         [0028]    The length of the supporting board  20  is 210 mm. The length of the linkage trestle  30  is 110 mm. The distance from the supporting board  30  and the pivot place where the housing  10  and the linkage trestle  30  are linked is 50 mm. Given an original angle Θ between the supporting board  20  and the housing  10  of 10 degrees, the sliding lump  321  is in the original position. The relationship is presented in the chart below. 
         [0000]    
       
         
               
               
               
             
           
               
                   
               
               
                   
                 distance to the sliding 
                 Difference between 
               
               
                 angle θ 
                 lump 321 
                 front and rear 
               
               
                   
               
             
             
               
                 10 degrees 
                  0 mm 
                 — 
               
               
                 30 degrees 
                 12 mm 
                 12 mm 
               
               
                 50 degrees 
                 31 mm 
                 17 mm 
               
               
                 70 degrees 
                 49 mm 
                 18 mm 
               
               
                 90 degrees 
                 66 mm 
                 17 mm 
               
               
                 110 degrees  
                 78 mm 
                 12 mm 
               
               
                   
               
             
          
         
       
     
         [0029]    As shown in the above chart, any change in the angle Θ leads to a different moving distance of the sliding lump  321 . The movement distance of the sliding lump  321  corresponds to a change in the angle Θ substantially with symmetry. When the angle Θ is 50 degrees to 70 degrees, the distance to the sliding lump  321  is the greatest. The difference between the front and rear is the interval between the protrusions  411 . On the other side, the change in the angle Θ between the supporting board  20  and the housing  10  is equal (equal difference). In one embodiment of the present disclosure, the intervals between the protrusions  411  are equal. 
         [0030]    As described above, the housing is a component of the rear cover of the electronic device  9 ′. In a second embodiment, the housing and the electronic device  9  are separate and individual. The electronic device  9  has a concave groove  91 . The concave groove corresponds to the housing  10 . On the surface of the concave groove  91  is disposed at least one concave point  911 , and on the outer surface of the housing  10  is disposed. at least one convex point  10   a ; the concave point  911  and the convex point  10   a  correspond to each other such that the housing  10  and the electronic device  9  can be combined. By this design, the housing  10  and the electronic device  9  can be produced separately; the supporting device  1  is thus modular. The supporting device  1  can be installed on the electronic device  9  according to user requirements. 
         [0031]    In summary, the supporting device of the present disclosure has at least the advantages below: Due to the elastic body pressing against the sliding end of the linkage, when the linkage trestle slides along the supporting board, the elastic, force of the elastic body is exerted on the linkage trestle to resist the external force exerted on the supporting board. 
         [0032]    Although the present disclosure has been explained in relation to its preferred embodiment, it is also of vital importance to acknowledge that many other possible modifications and variations can be made without departing from the spirit and scope of the disclosure as hereinafter claimed.