Abstract:
Disclosed is a tray assembly. The tray assembly may include a tray having a guide slot, a hinge arm including a cam-shaped portion and rotably coupled to the tray, a cover fixed to an end portion of the hinge arm, a drawer box storable in the tray and having a guide pin at a side portion thereof, the guide pin passing through the guide slot of the tray and being movable along the guide slot by selectively engaging with the cam-shaped portion of the hinge arm.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application claims priority to Korean Patent Application Number 10-2009-0120163, filed on 4 Dec. 2009, the entire contents of which is incorporated herein for all purposes by this reference. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a tray assembly for a vehicle, and more particularly, to a tray assembly which is able to allow an electronic appliance tray to cooperate with a general drawer tray, wherein the electronic appliance tray is a tray for a mobile phone, an MP3 player or the like, in a vehicle. 
     2. Description of Prior Art 
     Generally, a vehicle has a case-shaped tray which stores various appliances such as a mobile phone or the like. For this tray, a cover is provided to open and close the tray. The conventional tray has a mechanism using a guide pin and a slot so as to open and close the cover. 
       FIG. 1  is a perspective view for illustrating a state that a conventional tray assembly is closed, and  FIG. 2  is a perspective view for illustrating a state that the tray assembly of  FIG. 1  is opened. 
     Referring to  FIGS. 1 and 2 , a roller  10  is equipped to a guide pin  22  of a holding tray  20 , and a hinge arm  40  is rotably equipped to a drawer tray  30 . The drawer tray  30  is fixed to a vehicle, and the holding tray  20  is formed to be movable relative to the drawer tray  30 . 
     The hinge arm  40  has a shape of a semi-circle, and a slot  42  with a shape of a circular arc is formed on the hinge arm  40 . The guide pin  22  of the holding tray  20  is interposed in the slot  42  so that the roller  10  may be contact with a side of the circular arc-shaped slot  42  of the hinge arm  40 . 
     The guide pin  22  of the holding tray  20  is formed rotably along the slot  42  between the first position and the second position of the circular arc-shaped slot  42 . Concretely, when the guide pin  22  is placed at the first position of the slot  42 , a cover  50  which is fixed to hinge arm  40  maintains a closed state, and when the guide pin  22  is placed at the second position of the slot  42 , the cover  50  maintains an open state. 
     According to the conventional tray assembly, when the guide pin  22  is guided in the slot  42 , the guide pin  22  may be smoothly guided in a forward or rearward direction due to the rolling of the roller  10 . 
     On the other hand, the fact is that the number of the trays has increased according as the number of the electronic appliances equipped in the vehicle has increased. But, since each of the trays according to the conventional art has a structure to be open and close the tray individually, the tray occupies much space in the vehicle, and accordingly, the prime cost and the weight of the vehicle may increase. 
     The information disclosed in this Background of the Invention section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art. 
     BRIEF SUMMARY OF THE INVENTION 
     Various aspects of the present invention are directed to provide a tray assembly, in which an electronic appliance tray and a main tray in the vehicle are able to cooperating with each other by one mechanism. 
     In an aspect of the present invention, the tray assembly may include a tray having a guide slot, a hinge arm including a cam-shaped portion and rotably coupled to the tray, a cover fixed to an end portion of the hinge arm, a drawer box storable in the tray and having a guide pin at a side portion thereof, the guide pin passing through the guide slot of the tray and being movable along the guide slot by selectively engaging with the cam-shaped portion of the hinge arm, wherein, when the guide pin is placed at a first position of the guide slot, the guide pin is slidable along the guide slot without interference with the hinge arm while the cover maintains opened, such that the drawer box fixed to the guide pin is movable into the tray, and when the guide pin is placed at the first position or between the first position and a second position of the guide slot, the guide pin is slidable along the guide slot by the cam-shaped portion of the hinge arm when the hinge arm is rotated, such that the drawer box fixed to the guide pin is movable into the tray and the cover closes the tray. 
     The hinge arm may have a linear portion and the cam-shaped portion and, when the guide pin is placed at the first position of the guide slot and the cover maintains opened, the guide pin is movable along the guide slot under the linear portion of the hinge arm without interference with the hinge arm. 
     The tray may include a first tray and a second tray formed under the first tray, and wherein the hinge arm is rotably coupled to the first tray and the second tray stores the drawer box therein. 
     The first tray may be a holding box, and the second tray may be a tray for an electronic appliance. 
     The hinge arm may be rotably coupled to the first tray by a pin and a circle plate, the pin fixing the circular plate to the first tray, and wherein the hinge arm is rotatably engaged with the circle plate. 
     The guide slot of the second tray may be formed in a linear type. 
     The guide slot of the tray may be formed in a linear type. 
     The cover may be monolithically integrated with the hinge arm. 
     According to the tray assembly of the present invention, because an electronic appliance tray and a main tray in the vehicle are able to cooperating with each other by one mechanism, it is possible to economize the space in the vehicle and reduce the weight of the vehicle. 
     The methods and apparatuses of the present invention have other features and advantages which will be apparent from or are set forth in more detail in the accompanying drawings, which are incorporated herein, and the following Detailed Description of the Invention, which together serve to explain certain principles of the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view for illustrating a state that a conventional tray assembly is closed. 
         FIG. 2  is a perspective view for illustrating a state that the tray assembly of  FIG. 1  is opened. 
         FIG. 3  is a side view for showing a state that an exemplary tray assembly of an electronic appliance according to the present invention is cooperating with a tray assembly, when a guide pin is paced at the first position of a slot. 
         FIG. 4  is a perspective view for showing the exemplary tray assembly of  FIG. 3  when the guide pin is paced at the second position of a slot. 
         FIG. 5  is a perspective view for showing the exemplary tray assembly of  FIG. 3  when the guide pin is paced at the third position of a hinge arm. 
         FIG. 6  is a side view for showing the exemplary tray assembly of  FIG. 3  when the guide pin is paced at the third position of the hinge arm. 
     
    
    
     It should be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes will be determined in part by the particular intended application and use environment. 
     In the figures, reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. 
     DETAILED DESCRIPTION OF THE INVENTION 
     Reference will now be made in detail to various embodiments of the present invention(s), examples of which are illustrated in the accompanying drawings and described below. While the invention(s) will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention(s) to those exemplary embodiments. On the contrary, the invention(s) is/are intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims. 
     Now, a tray assembly according to an exemplary embodiment of the present invention which is cooperating with an electronic appliance tray will be explained in detail on the basis of the attaching drawings. 
       FIG. 3  is a side view for showing a state that a tray of an electronic appliance according to an exemplary embodiment of the present invention is cooperating with a tray assembly, when a guide pin is paced at the first position of a slot,  FIG. 4  is a perspective view for showing the tray assembly of  FIG. 3  when the guide pin is paced at the second position of a slot, and  FIGS. 5 and 6  are a perspective view and a side view for showing the tray assembly of  FIG. 3  when the guide pin is paced at a cam-shaped portion of a hinge arm as explained later in detail. 
     Referring to  FIGS. 3 to 6 , a tray assembly according to the exemplary embodiment of the present invention includes a drawer tray  200 , a hinge arm  110  which is rotably equipped to the drawer tray  200 , a cover  120  for the drawer tray which is fixed to an edge of the hinge arm  110 , an electronic appliance tray  300  which includes a housing  310  and a drawer box  320  which is storable in the housing  310 , and a guide pin  130  fixed to a side portion of the drawer box  320  of the electronic appliance tray  300 , the guide pin  130  being inserted into a guide slot  312  formed in the housing  310  of the electronic appliance tray  300  and being movable along the guide slot  312 . 
     In the exemplary embodiment of the present invention, the guide slot  312  which is formed in the housing  310  of the electronic appliance tray  300  is formed in a linear type. Also, the cover  120  for the drawer tray is integrated with the hinge arm  110 . 
     The hinge arm  110  is rotably equipped in the drawer tray  200  by means of a pin  220  and a circle plate  230 , in which the pin  220  is rotably inserted into a hole (not shown) formed in the drawer tray  200 , and the circle plate  230  is fixed to the pin  220 . 
     A side of the hinge arm  110  has a shape of a cam. Due to the cam-shaped side of the hinge arm  110 , when the guide pin  130  is placed at the first position  312   a  of the guide slot  312 , the cover  120  for the drawer tray and the drawer box  320  of the electronic appliance tray  300  maintain an open state, respectively as shown in  FIG. 3 . 
     Besides, after this, when the user pushes the drawer box  320  into the housing  310  of the electronic appliance tray  300 , the guide pin  130  is moved at the second position  312   b  of the guide slot  312  and thus the cover  120  for the drawer tray  200  maintains the open state, and the drawer box  320  of the electronic appliance tray  300  is closed as shown in  FIG. 4 . 
     In addition, when the guide pin  130  maintains to be placed at the first position  312   a  of the guide slot  312  or between the first and second positions  312   a  and  312   b  and the hinge arm  110  is rotated, the cover  120  closes the drawer tray  200  and the drawer box  320  altogether. 
     The cam-shaped side of the hinge arm  110  has a linear portion  112  so that the cover  120  for the drawer tray may maintain the open state while the drawer box  320  of the electronic appliance tray  300  may be closed, during the guide pin  130  is moving from the first position  312   a  to the second position  312   b  of the guide slot  312 . 
     Also, the cam-shaped side of the hinge arm  110  has a semi-circle portion  114  so that the cover  120  fixed to the hinge arm  312  may close the drawer box  320  when the guide pin  130  placed at the first position  312   a  of the guide slot  312  or between the first and second positions  312   a  and  312   b  moves to the second position  312   b  while the guide pin  130  is pushed by the cam-shaped portion  113  of the hinge arm  110  in a rearward direction by rotating the hinge arm  110 . 
     Referring to the attaching drawings, the operation of the tray assembly according to the exemplary embodiment of the present invention will be explained as follows. 
     To begin with, in the exemplary embodiment of the present invention, the guide slot  312  formed in the housing  310  of the electronic appliance tray  300  is formed in a linear type. Besides, as mentioned above, a portion of the hinge arm  110  is formed in a shape of a cam. 
     The cam-shaped side of the hinge arm  110  has a linear portion  112  so that the cover  120  for the drawer tray may maintain the open state while the drawer box  320  of the electronic appliance tray  300  may be closed, during the guide pin  130  is moving from the first position  312   a  to the second position  312   b  of the guide slot  312 . 
     Also, the cam-shaped side of the hinge arm  110  has a semi-circle portion  114  so that when the cover  120  for the drawer tray is closed and thus the hinge arm  110  is rotated, the guide pin  130  placed at the first position  312   a  of the guide slot  312  moves to the second position  312   b  of the guide slot  312  and thus the drawer box  320  moves into the housing  310  of the electronic appliance tray  300 . 
     Because of the linear portion  112  of the hinge arm  110 , when the guide pin  130  is placed at the first position  312   a  of the guide slot  312 , the cover  120  for the drawer tray maintains the open state and the drawer box  320  of the electronic appliance tray  300  is movable into the housing  310  of the electronic appliance tray  300 . For instance, while the guide pin  130  is moved to be placed at the second position  312   b  of the guide slot  312  by pushing back the drawer box  320 , the cover  120  for the drawer tray maintains the open state and the drawer box  320  of the electronic appliance tray  300  is closed. 
     In addition, while the guide pin  130  is disposed at the first position guide slot  312   a  or between the first and second positions  312   a  and  312   b , the rotation of the hinge arm  110  moves the guide pin  130  to the second position  312   b  of the guide slot  312  by cam-shaped portion  113  of the hinge arm  110  and thereby the cover  120  of the drawer tray and the drawer box  320  are closed altogether. 
     For convenience in explanation and accurate definition in the appended claims, the terms “lower”, “forward” and “rearward” are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures. 
     The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the present invention, as well as various alternatives and modifications thereof. It is intended that the scope of the invention be defined by the Claims appended hereto and their equivalents.