Abstract:
An overload protection device using a slide sheet and a number of hooking through holes formed in a receiving groove to lock a holder onto a base. the receiving groove is defined in the base, the slide sheet is slidably received in the receiving groove via a spring. The slide sheet and the hooking through holes can be concealed by the holder when the holder is locked onto the base.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present disclosure relates to graphical assemblies and, particularly, to a graphical assembly capable of concealing fastening structures for fastening the graphical assembly on a product. 
         [0003]    2. Description of Related Art 
         [0004]    Generally, a graphical assembly, e.g., a logo, is fastened to a product through fastening structure, for example, a number of hooks or a number of sliding grooves. However, the fastening structure is usually formed on the outer surface of the product and exposed to outside view. Thus, the appearance of the product is less than satisfactory. 
         [0005]    Therefore, it is desirable to provide a graphical assembly which can overcome the above-mentioned problems. 
     
    
     
       BRIEF DESCRIPTION OF THE FIGURE 
         [0006]      FIG. 1  is an exploded, isometric view of an exemplary embodiment of a graphical assembly. 
           [0007]      FIG. 2  is an exploded, isometric view of the graphical assembly of  FIG. 1 , viewed at a different angle. 
           [0008]      FIG. 3  is an assembled, isometric view of the graphical assembly of  FIG. 1 . 
           [0009]      FIG. 4  is a cutaway view of the graphical assembly of  FIG. 3 , view at a different angle. 
           [0010]      FIG. 5  is a partial, cross-section, isometric view taken along the line V-V of  FIG. 4 . 
           [0011]      FIG. 6  is a partial, cross-section, isometric view of the graphical assembly of  FIG. 4 , similar to  FIG. 5 , when a holder is unlocked. 
       
    
    
     DETAILED DESCRIPTION 
       [0012]    Referring to  FIGS. 1 and 2 , a graphical assembly  1 , according to an exemplary embodiment, is illustrated. The graphical assembly  1  includes a plate  10 , a holder  12 , a slide sheet  14 , a spring  18 , and a base  16 . 
         [0013]    The plate  10  is rectangular and includes a graphical surface  102  and an adhesive surface  100  opposite to the graphical surface  102 . The graphical surface  102  is used for forming a pattern, e.g., a logo, by surface processing technology, such as electroform, anodic oxidation, polishing or grinding. The adhesive surface  100  is used for adhering the plate  10  to the holder  12 . 
         [0014]    The holder  12  is substantially rectangular and includes a connecting surface  120 , a first fastening surface  122 , a number of arched projections  129 , a pair of first hooks  125 , a pair of second hooks  127 , a first sidewall  124 , and a second sidewall  126 . The connecting surface  120  is opposite to the first fastening surface  122 . The first sidewall  124  is opposite to the second sidewall  126 . 
         [0015]    The holder  12  defines an assembly through hole  123  generally in the center the connecting surface  120 . The pair of first hooks  125  are symmetrical about a central axis OA of the holder  12 . The central axis OA is perpendicular to the first sidewall  124  and the second sidewall  126 . Each first hooks  125  includes a first connecting part  125   a  and a first hooking part  125   b . The first connecting part  125   a  extends outwards perpendicularly from the first fastening surface  122 . The first connecting part  125   a  is formed generally at the middle of the assembly through hole  123  and the first sidewall  124 . The first hooking part  125   b  extends outwards the first sidewall  124  from an end of a corresponding first connecting part  125   a  away from the first fastening surface  122 . The second hooks  127  are symmetrical about the central axis OA also. Each second hooks  127  includes a second connecting part  127   a  and a second hooking part  127   b . The second connecting part  127   a  extends outwards perpendicularly from the first fastening surface  122  near the second sidewall  126 . The second hooking part  127   b  extends outwards the second sidewall  126  from an end of a corresponding second connecting part  127   a  away from the first fastening surface  122 . The arched projections  129  substantially extend outwards perpendicularly from the first fastening surface  122  between the first hooks  125  and the second sidewall  126 . 
         [0016]    The slide sheet  14  is substantially rectangular and includes four corners  141 , a first side  140 , a second side  142  opposite to the first side  140 , a handle  143 , a first holding tongue  147 , and an arched protrusion  145 . Also, the slide sheet  14  defines a semi-circular positioning cutout  144  generally in the center of the second side  142 . The handle  143  is a rectangular plate extending outwards generally perpendicular from the center of the first side  140 . The arched protrusion  145  is a strip that is cut from the slide sheet  14  and punched upwards to form a V-shaped arch. The arched protrusion  145  is formed generally in the center of the slide sheet  14  and connects the handle  143 . 
         [0017]    The slide sheet  14  also defines a pair of first fastening through holes  146  at opposite sides of the arched protrusion  145  corresponding to the first hooks  125 . The first holding tongue  147  is a strip that is cut from a portion of the arched protrusion  145  adjacent to the semi-circular positioning cutout  144  and is bent downwards and towards the first side  142 . 
         [0018]    The base  16  includes a rectangular fastening board  161 , a pair of parallel third sidewalls  162 , and a pair of parallel forth sidewalls  163 . Each of the third sidewalls  162  is perpendicularly connected to the forth sidewalls  163 . Two opposite ends  162   b  of each third sidewall  162  and two opposite ends  163   a  of each forth sidewall  163  are coplanar. The fastening board  161  is perpendicularly connected to the ends  162   b ,  163   a  of the third sidewalls  162  and the forth sidewalls  163 . The fastening board  161  includes a second fastening surface  160  corresponding to the first fastening surface  122  in shape and size. The base  16  defines a rectangular receiving groove  166  in the second fastening surface  160 . 
         [0019]    The receiving groove  166  defines a bottom surface  166   a , a pair of first inner surface  166   g  corresponding to the third sidewalls  162 , and a pair of second inner surface  166   h  corresponding to the forth sidewalls  163 . The fastening board includes a positioning arm  167 , a positioning protrusion  167   a , a second holding tongue  168 , and a number of positioning blocks  169 . 
         [0020]    The base  16  defines a handle through hole  166   b  generally in a middle part of one of the first inner surface  166   g  and communicating the receiving groove  166 . The handle through hole  166   b  is configured for fittingly receiving the handle  143 . The base  16  defines a pair of first hooking through holes  166   c  corresponding to the first hooks  125  in the bottom surface  166   a  near the handle through hole  166   b . The length of the first hooking through hole  166   c  in a direction perpendicular to the third sidewall  162  is larger than the length of the first fastening through hole  146  in a direction perpendicular to the first side  140 . The base  16  defines a pair of second hooking through holes  166   d  corresponding to the second hooks  127  on the bottom surface  166   a  away from the handle through hole  166   b . The base  16  defines a pair of second fastening through hole  162   a  on the third sidewall close to the second hooking through holes  166   d.    
         [0021]    The base  16  defines an first holding through hole  166   e  generally in a center of the bottom surface  166   a . The longitudinal direction of the first holding through hole  166   e  is perpendicular to the third sidewall  162 . The positioning arm  167  extends into the first holding through hole  166   e  from one end of the first holding through hole  166   e  away from the handle through hole  166   b . The positioning protrusion  167   a  perpendicularly extends upwards into the receiving groove  166  at a distal end of the positioning arm  167 . 
         [0022]    The base  16  defines a second holding through hole  166   f  on the bottom surface  166   a  between the first holding through hole  166   e  and the second hooking through holes  166   d . The second holding tongue  168  extends perpendicularly downwards at one end of the first holding through hole  166   e  and is bent towards the second holding through hole  166   f.    
         [0023]    The positioning blocks  169  extend into the receiving groove  166  from the first inner surface  166   g  and the second inner surface  166   h  corresponding to four corners  141  of the slide sheet  14 . The spring  18  includes two ends  180 ,  181  on opposite sides of the spring  18 . 
         [0024]    Also referring to  FIGS. 3 and 4 , in assembly, the plate  10  is adhered to the holder  12  by adhering the adhesive surface  100  onto the connecting surface  120 . The slide sheet  14  is disposed in the receiving groove  166  with the corners  141  correspondingly engaged with the positioning blocks  169  and the first holding tongue  147  passing through the first holding through hole  166   e . The handle  143  passes through the handle through hole  166   b . The positioning protrusion  167   a  is engaged with the positioning cutout  144 . The first fastening through holes  146  are correspondingly aligned with the first hooking through holes  166   c . Two opposite ends  180  and  181  of the spring  18  are correspondingly fixed to the first holding tongue  147  and the second holding tongue  168 . 
         [0025]    Also referring to  FIGS. 5 and 6 , in use, to lock the holder  12  onto the base  16 , the second connecting parts  127   a  of each second hook  127  pass through the second hooking through holes  166   d . The second hooking parts  127   b  of each second hooks  127  are correspondingly inserted into the second fastening through holes  162   a . A part of the first hooking through hole  166   c  near the third sidewall  162  is blocked by the periphery of the first fastening through hole  146  when the spring  18  is at rest. The handle  143  is pulled away from the third sidewall  162  to free the part of the first hooking through hole  166   c  near the third sidewall  162 . The first hooks  125  are passed through the first fastening through holes  146  and inserted into the first hooking through holes  166   c . The arched projections  129  are supported upon the arched protrusion  145 . Then, the handle  143  is released. The slide sheet  14  slide towards the third sidewall  162  away from the handle through hole  166   b . The first hooks  125  insert into the first hooking through holes  166   c  more deeply. The arched projection  129  slide to a position between the arched protrusion  145  and the third sidewall  162 . The peripheries of each first fastening through holes  146  closing to the first side  140  correspondingly slide to engage with the first hooking parts  125   b  of each first hook  125  for fastening the holder  12  onto the second fastening surface  160  of the base  16 . 
         [0026]    To unlock the holder  12  from the base  16 , the handle  143  is pulled away from the third sidewall  162 . The peripheries of each first fastening through holes  146  slide away from the first hooking parts  125   b . The slide sheet  14  pushes the holder  12  away from the base  16  via the arched protrusion  145  pushing against the arched projections  129 . Then, the second hooks  127  are pulled out of the second fastening through hole  162   a  and the second hooking through hole  166   d . The holder  12  can be detached from the base  16 . 
         [0027]    The graphical assembly locks the holder onto the base via engage between the hooks formed on the holder and the hooking through holes formed on the base. The hooking through holes are formed in a receiving groove defined on the base. Thus, the hook and the hooking through holes can be concealed by the holder when the holder is locked onto the base. As a result, the appearance of the graphical assembly can be improved. 
         [0028]    While various exemplary and preferred embodiments have been described, it is to be understood that the invention is not limited thereto. To the contrary, various modifications and similar arrangements (as would be apparent to those skilled in the art) are intended to also be covered. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.