Mobile rack

Abstract

A mobile rack includes a fixed bracket, a tray, a movable element, and a guiding groove. The tray is capable of being slidingly extracted from or inserted into the fixed bracket, and an elastic element is disposed between the fixed bracket and the tray. In one embodiment, one end of the movable element is disposed at an inner side of the fixed bracket, and the other end has a protrusion. The guiding groove is disposed at an outer side of the tray facing to the protrusion and has a protrudent unit and a track surrounding the protrudent unit. The protrudent unit has a first guiding portion and a stopping portion. The protrusion is inserted into the track.

1 . A mobile rack comprising:
 a fixed bracket having a containing part;   a tray disposed in the containing part for carrying an object, the tray being capable of being slidingly extracted from or inserted into the containing part;   at least one elastic element connecting the fixed bracket and the tray;   a movable element disposed at one of surfaces of the fixed bracket and the tray and having a protrusion; and   a guiding part disposed at the other surface of the fixed bracket and the tray and opposite the movable element, the guiding groove including a protrudent unit and a track, the track surrounding the protrudent unit, the protrusion being inserted into the track and sliding along the protrudent unit, the protrudent unit having a first guiding portion and a stopping portion,   when the tray is pushed to be inserted into the containing part, the elastic element being compressed and deformed to store a restoring force, and the protrusion sliding along the first guiding portion until being against the stopping portion thus to stop the elastic element releasing the restoring force;   when the tray is pulled to be extracted from the containing part, the protrusion leaving away from the stopping portion to make the elastic element release the restoring force, thus making the tray extracted from the containing part.   
   
   
       2 . The mobile rack according to  claim 1 , wherein the first guiding portion is at one end of the protrudent unit away from an opening of the containing part, and the stopping portion is at one end of the protrudent unit adjacent to the opening of the containing part. 
   
   
       3 . The mobile rack according to  claim 2 , wherein the first guiding portion is a convex corner of the protrudent unit protruding toward the direction away from the opening of the containing part. 
   
   
       4 . The mobile rack according to  claim 3 , wherein the convex corner is formed by a first lateral surface and a second lateral surface of the protrudent unit, the sliding length of the protrusion along the first lateral surface is greater than that of the protrusion along the second lateral surface, and when the tray is pushed to be inserted into the containing part, the protrusion slides along the first lateral surface. 
   
   
       5 . The mobile rack according to  claim 1 , wherein the stopping portion is a concave corner of the protrudent unit recessed toward the direction away from the opening of the containing part. 
   
   
       6 . The mobile rack according to  claim 5 , wherein the concave corner is formed by a third lateral surface and a fourth lateral surface of the protrudent unit, the sliding length of the protrusion along the third lateral surface is greater than that of the protrusion along the fourth lateral surface, and when the tray is pulled to be extracted from the containing part, the protrusion slides along the fourth lateral surface. 
   
   
       7 . The mobile rack according to  claim 1 , wherein the movable element is disposed at the tray, and the guiding groove is disposed at the fixed bracket. 
   
   
       8 . The mobile rack according to  claim 1 , wherein the movable element is disposed at the fixed bracket, and the guiding groove is disposed at the tray. 
   
   
       9 . The mobile rack according to  claim 1 , wherein an inner wall of the guiding groove has a positioning portion, and when the tray is pulled to be extracted from the containing part, the protrusion is against the positioning portion. 
   
   
       10 . The mobile rack according to  claim 9 , wherein the inner wall of the guiding groove has two first guiding surfaces, an angle is formed between the first guiding surfaces to form the positioning portion, and the angle faces to the first guiding portion according to the sliding direction of the tray. 
   
   
       11 . The mobile rack according to  claim 9 , wherein when the tray is pushed to be inserted into the containing part, the protrusion moves from the positioning portion to the first guiding portion. 
   
   
       12 . The mobile rack according to  claim 1 , wherein the track comprises two parallel sections connecting the first guiding portion and the stopping portion. 
   
   
       13 . The mobile rack according to  claim 12 , wherein an inner wall of the guiding groove has two second guiding surfaces to form the parallel sections with the protrudent unit. 
   
   
       14 . The mobile rack according to  claim 12 , wherein an inner wall of the guiding groove has a second guiding portion, the second guiding portion faces to the stopping portion and has a protrudent block, and when the protrusion slides toward the stopping portion along the first guiding portion via the parallel section, the protrudent block limits the route of the protrusion to make the protrusion be against the stopping portion. 
   
   
       15 . The mobile rack according to  claim 1 , wherein one surface of the fixed bracket parallel to the sliding direction of the tray has at least one long opening, the tray has at least one protrudent pole corresponding to the long opening, and the protrudent pole passes through the corresponding long opening and can slide along the long opening. 
   
   
       16 . The mobile rack according to  claim 1 , wherein one end of the movable element is pivotally connected to one of the surfaces of the fixed bracket or the tray facing to each other, and the other end has the protrusion capable of rotating around the end.