Patent Publication Number: US-6663056-B1

Title: Wrist cushion

Description:
BACKGROUND OF THE INVENTION 
     With the prosperous and rapid developments in the industrial and commercial fields, people&#39;s living quality has been largely and constantly upgraded. As a result, most consumers have higher requirements for the products they intend to purchase. The products that meet consumers&#39; requirements must economically provide good basic functions and have novel and unique designs. One of the ways to make an item that is displayed or arranged in the room and always appears before users more attractive and more useful is to add another new structure to the original product without adversely influencing its appearance and intended function. A wrist cushion for positioning below a user&#39;s wrist during manipulating a mouse is an example of the above-mentioned item that is frequently used and may be improved to show a novel appearance to attract more consumers. 
     FIG. 1 is a perspective view of a conventional wrist cushion for positioning below a user&#39;s wrist during manipulating a mouse. The wrist cushion is typically made of a soft and elastic material, such as silicon rubber, to be a transparent product. However, the material, such as the silicon rubber, that provides sufficient softness and elasticity is usually viscid plastic or rubber material having high viscosity. That is, the conventional wrist cushion made of such high-viscosity material is not fluid at all. Thus, any ornamental article provided inside the conventional wrist cushion is maintained in a static state. In some cases, the conventional wrist cushion is simply a transparent cushion made of silicon rubber without any internal ornamental article and has a monotonous appearance. 
     It is therefore tried by the inventor to develop an improved wrist cushion that is novel and unique because it includes fluids and movable internal ornaments to show dynamic views. 
     SUMMARY OF THE INVENTION 
     A primary object of the present invention is to provide a wrist cushion that includes a soft and elastic top portion for a user to comfortably rest a wrist thereon, and a shell portion having ornamental articles movably positioned therein. Both the shell and the top portions are transparent for users to see the movable ornamental articles from outside of the wrist cushion. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein 
     FIG. 1 is perspective view of a conventional wrist cushion; 
     FIG. 2 is an exploded perspective view of a wrist cushion according to an embodiment of the present invention; 
     FIG. 3 is an assembled perspective view of FIG. 2; 
     FIG. 4 is a sectional view of FIG. 3; and 
     FIG. 5 shows the wrist cushion of the present invention attached to a large pad. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Please refer to FIGS. 2,  3 , and  4  that are exploded perspective, assembled perspective, and sectional views, respectively, of a wrist cushion according to an embodiment of the present invention. As shown, the wrist cushion mainly includes a pad portion  1  forming a base of the wrist cushion, a transparent shell portion  2  connected to an upper side of the pad portion  1  and having one or two types of liquid  11  and ornamental floating articles  22  contained therein, and a top portion  3  connected to the pad portion  1  to cover the entire shell portion  2 . 
     The transparent shell portion  2  containing mono or dual liquids  11  and ornamental floating articles  22  may be connected to the upper side of the pad portion  1  with a suitable bonding agent, so that the shell portion  2  and the pad portion  1  together form an integral unit, as shown in FIG.  3 . FIG. 5 shows another embodiment of the present invention, in which the wrist cushion is set in and projected from a pad having an area larger than that of the pad portion  1  of the wrist cushion. 
     The transparent shell portion  2  containing mono or dual liquids  11  and ornamental floating articles  22  may have different contours designed according to configuration and size of the pad portion  1 . For example, when the pad portion  1  has a curved configuration, the transparent shell portion  2  may be correspondingly designed to have the same curve and size as the pad portion  1 . 
     The top portion  3  is made of a soft, transparent, and elastic material, such as silicon rubber or any other elastomer providing equivalent effect, and has a proper thickness. The top portion  3  is bonded to and covers a whole top of the pad portion  1  and the shell portion  2 , so that the wrist cushion has a complete, soft, and elastic outer surface. The top portion  3  made of, for example, silicon rubber also protects the shell portion  2  against undesired piercing by some pointed or sharp things to result in leakage of internal liquid  11 . Since both the top portion  3  and the shell portion  2  are transparent, movements of the mono or dual liquids  11  and the ornamental articles  22  floating over the liquids  11  can be clearly seen from outside of the wrist cushion. With a fluidity of the mono or dual liquids  11 , the ornamental floating articles  22  always drift over the liquids  11  to create dynamic views in the shell portion  2 , making the whole wrist cushion of the present invention more attractive to users.