Patent Publication Number: US-2019176295-A1

Title: Vaccum absorbing platform

Description:
BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The invention relates to a platform, and more particularly to a vacuum absorbing platform. 
     Description of the Related Art 
     Refer to  FIG. 1 . The conventional vacuum absorbing platform ( 1 ) includes a honeycombed core ( 2 ) secured between the front panel ( 3 ) and the rear panel ( 4 ) wherein the holes ( 3   a ) of the front panel ( 3 ) correspond to the holes ( 4   a ) of the rear panel ( 4 ). The holes ( 3   a ) ( 4   a ) link with the cells ( 2   a ) of the honeycombed core ( 2 ) to form a plurality of voids, and the space of the frame ( 5 ) is associated with the voids. Therefore, the air within the space of the frame ( 5 ) is drawn through the exterior aspirator to provide a negative pressure in the honeycombed core ( 2 ) thereby absorbing and securing the workpiece. 
     Regarding to the above conventional structure, the holes ( 3   a ) ( 4   a ) must be positioned at the opposite ends of each cell ( 2   a ) such that the assembly process is inconvenient and complicated. Moreover, the air within the space of the frame ( 5 ) cannot be drawn when the holes ( 4   a ) of the rear panel ( 4 ) are blocked, and the absorbing effect is decreased. 
     SUMMARY OF THE INVENTION 
     In view of the disadvantages of prior art, the object of the present invention is to provide a vacuum absorbing platform with a plurality of cells communicated with each other laterally to prevent the air from being blocked and increase the absorbing effect. 
     To achieve the above object, the present invention provides a vacuum absorbing platform comprising a base, a plate unit and a plurality of adjusters. The plate unit is disposed on the base and comprises a body, a front panel and a rear panel. The body comprises a plurality of cells configured with each other and a plurality of first openings configured on the walls of the cells. The front panel is secured on one side of the body to seal the cells and comprises a plurality of voids communicate with the cells respectively. The rear panel is secured on the other side of the body to seal the cells. The adjusters are located between the base and the plate unit to regulate the distance therebetween. 
     In one embodiment of the present invention, the vacuum absorbing platform comprises a connector with a connecting division and a plurality of second openings. The connecting division is arranged between the plates, and the second openings are configured on the connecting division and communicated with the first openings. 
     In one embodiment of the present invention, each of the adjusters comprises a fixture, a mover, an adjusting element and an elastic element. The fixture is secured on the base. The mover is positioned through the body and connected with the front panel. The adjusting element is connected between the fixture and the mover, and the elastic element is set between the fixture and the mover. 
     In one embodiment of the present invention, the elastic element is a helical spring holding the adjusting element. 
     In one embodiment of the present invention, the adjusting element is locked within the screw hole of the fixture. 
     In one embodiment of the present invention, the base comprises a plurality of hollow tubes crossed with each other wherein the foam material is fulfilled with the hollow tubes. 
     In one embodiment of the present invention, the base comprises a plurality of strengthening elements secured on the intersections of the hollow tubes. 
     In one embodiment of the present invention, each of the strengthening elements comprises a first shell, a second shell, a first supporter and a second supporter. The first shell and the second shell are assembled with each other to hold the intersection of the hollow tubes. The first supporter is fixed on the first shell, and the second supporter is fixed on the second shell. The first supporter is set against the second supporter. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic view of the conventional vacuum absorbing platform; 
         FIG. 2  is a schematic view of the vacuum absorbing platform according to the embodiment of the present invention; 
         FIG. 3  is a partial exploded view of the vacuum absorbing platform according to the embodiment of the present invention; 
         FIG. 4  is a partial exploded view of the base according to the embodiment of the present invention; 
         FIG. 5  is an exploded view of the plate according to the embodiment of the present invention; 
         FIG. 6  is a partial enlarged schematic view of the body according to the embodiment of the present invention; 
         FIG. 7  is a partial cross sectional view of the vacuum absorbing platform along the line  7 - 7  of  FIG. 2 ; 
         FIG. 8  is an exploded view of the adjuster according to the embodiment of the present invention; and 
         FIG. 9  is a cross sectional view of the vacuum absorbing platform along the line  9 - 9  of  FIG. 2 ; 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Refer to  FIG. 2  and  FIG. 3 . The vacuum absorbing platform  10  includes a base  20 , two plates  30 , a connector  40 , a border  50  and a plurality of adjusters  60 . The connector  40  is arranged between the plates  30  wherein the plates  30  are surrounded by the border  50 . The adjusters  60  are located between the base  20  and the plates  30 . 
     Refer to  FIG. 4  and  FIG. 9 . The base  20  includes a plurality of hollow tubes  21 , a plurality of strengthening elements  22  and a foam material  23 . The hollow tubes  21  are rectangular formation, and crossed with each other to form a mesh arrangement. Each strengthening element  22  includes a first shell  211  and a second shell  222  assembled with each other to hold the intersections of the hollow tubes  21 . Moreover, each strengthening elements  22  further includes a first supporter  223  fixed on the first shell  221 , and a second supporter  224  fixed on the second shell  222 . The first supporter  223  and the second supporter  224  are in the form of sheet whereby the first supporter  223  can be set against the second supporter  224  to provide a support at the corner of the strengthening element  22  after the assembly of the first shell  211  and the second shell  222 . Accordingly, the strengthening elements  22  hold the intersections of the hollow tubes  21  through the assembly of the first shell  211  and the second shell  222  wherein the corner of the strengthening element  22  is supported by the first supporter  223  and the second supporter  224  such that the strength of the intersections of the hollow tubes  21  is enhanced. The foam material  23  is fulfilled with the hollow tubes  21  (shown in  FIG. 9 ). 
     Refer to  FIG. 3 ,  FIG. 5  and  FIG. 6 . The plates  30  are adjacent with each other and disposed on the base  20 . Each plate  30  includes a body  31 , a plurality of cells  32 , a plurality of first openings  33 , a front panel  34 , a rear panel  35  and a plurality of voids  36 . The first openings  33  are configured on the walls of the cells  32  to communicate with the cells  32 . The front panel  34  and the rear panel  35  are adhered on two opposite sides of the body  31  to be secured on the cells  32  wherein the voids  36  configured on the front panel  34  communicate with the cells  32 . 
     Refer to  FIG. 5  and  FIG. 7 . The connector  40  includes a connecting division  41  and a plurality of second openings  42  wherein the connecting division  41  is arranged between the plates  30 , and the second openings  42  are configured on the connecting division  41  and communicated with the first openings  33 . 
     Refer to  FIG. 3  and  FIG. 7 . The border  50  surrounding the plates  30  and between the front panel  34  and the rear panel  35  is composed of four edges to seal the first openings  33 . 
     Refer to  FIG. 4 ,  FIG. 8  and  FIG. 9 . Each adjuster  60  includes a fixture  61 , a mover  62 , an adjusting element  63  and an elastic element  64 . The fixture  61  is a block with screw hole and secured within the hollow tubes  21  of the base  20  through the screws (not shown). The mover  62  is positioned through the body  31  and connected with the front panel  34  wherein the adjusting element  63  is a bolt locked within the hole of the mover  62  and the screw hole of the fixture  61 . The elastic element  64  is a helical spring holding the adjusting element  63  and set between the fixture  61  and the mover  62 . 
     In the embodiment of the vacuum absorbing platform  10 , the cells  32  are communicated with each other through the first openings  33 , and the voids  36  are communicated with the cells  32 . Accordingly, the absorbing effect is improved to solve the lack of the vacuum degree of the prior art. Although the mechanism of the aspirating is not shown in the embodiment, the exterior aspirator can be connected with the vacuum absorbing platform  10  as illustrated in the prior art. Specifically, the exterior aspirator can be placed laterally and connected with the holes configured on the border  50  to meet the industrial requirement. 
     Moreover, the connector  40  is arranged to link the plates  30  in accordance with various size of the vacuum absorbing platform  10 , and to direct the air between the plates  30 . Besides, the rigidity of the vacuum absorbing platform  10  is raised because of the connector  40 . 
     Furthermore, the distance between the plates  30  and the base  20  can be regulated through the adjuster  60  to provide horizontal correction of the vacuum absorbing platform  10 . Also, the elastic element  64  is provided to prevent the adjusting element  63  from being loosened thereby increasing the strength. 
     In addition to the foam material increasing the shock absorption, the strengthening elements  22  holding the intersections of the hollow tubes  21  are provided to enhance the strength of the vacuum absorbing platform  10 .