Patent Publication Number: US-2012024650-A1

Title: Luggage case

Description:
BACKGROUND OF THE INVENTION 
     (a) Field of the Invention 
     The present invention relates to a luggage case, and more particularly to a luggage case having protective units disposed on corners of the luggage case to prevent the luggage case from hit and wear. 
     (b) Description of the Prior Art 
     There are various luggage cases on the market. For example, a soft luggage case is made of textile fabric, which comprises a soft main body, a soft cover and a zipper to lock the main body and the cover. A hard luggage case is made of a plastic material by injection molding. The conventional luggage case has a hollow rectangular body with a right angle at each corner of the body. The corners of the luggage case are easy to hit or rub against other articles when the user draws or pulls the luggage case, which not only influences the pulling of the luggage case but also damages the appearance of the luggage case. Therefore, it is necessary to provide a protective structure to protect the edges and the corners of the luggage case. 
     In addition, the conventional luggage case comprises two wheels coupled to the bottom of the luggage case and foot pads to support the luggage case, so the luggage case can be pulled and placed steadily. However, the wheels, the foot pads and other parts are not an integral whole. For instance, they are not integrally formed with an anti-wear structure or the base of a pull rod, so the assembly of the luggage case is complicated due to many parts. This is not cost-effective. 
     SUMMARY OF THE INVENTION 
     The primary objective of the present invention is to provide a luggage case, which comprises first protective units and second protective units disposed on corners of a luggage case. The first and second protective units and a main body of the luggage case have chamber faces, preventing hit and wear. 
     A secondary objective of the present invention is to provide a luggage case, which has slots formed on the first and second protective units for insertion of a strap, so the first and second protective units can be used to connect the strap and the main body. 
     Another objective of the present invention is to provide a luggage case, which provides wheels coupled with the second protective units, so the luggage case can be assembled simply. 
     A further objective of the present invention is to provide a luggage case, which provides third protective units with support blocks to hold against the ground. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view according to a first embodiment of the present invention; 
         FIG. 2  is a side view according to a second embodiment of the present invention; 
         FIG. 3  is a rear view according to the second embodiment of the present invention; 
         FIG. 4  is a top view according to the second embodiment of the present invention; 
         FIG. 5  is a bottom view according to the second embodiment of the present invention; 
         FIG. 6  is a perspective view of a first protective unit of the present invention; 
         FIG. 7  is another perspective view of the first protective unit of the present invention; 
         FIG. 8  is a perspective view of a second protective unit of the present invention; 
         FIG. 9  is another perspective view of the second protective unit of the present invention; 
         FIG. 10  is a front view of the second protective unit of the present invention; 
         FIG. 11  is a side view of the second protective unit of the present invention; 
         FIG. 12  is a perspective view according to a third embodiment of the present invention, and 
         FIG. 13  is a side view according to the third embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings. 
     As shown in  FIG. 1  to  FIG. 5 , a luggage case according to a preferred embodiment of the present invention comprises a main body  1 , a pair of first protective units  2  disposed on two upper corners of a rear face  11  of the main body  1 , and a pair of second protective units  3  disposed on two lower corners of the rear face  11  of the main body  1 . 
     As shown in  FIG. 6  and  FIG. 7 , each first protective unit  2  comprises three connected plates  21  to wrap portions of the rear face  11 , an upper face  12  and one of two side faces  13  of the main body  1 . The three plates  21  are integrally formed with a plastic material to constitute the first protective unit  2 . The first protective unit  2  further has a first chamfer face  22  corresponding to an upper edge and one of two side edges of the rear face  11  of the body  1 . The first chamfer face  22  has an angle of 30 degrees to 45 degrees. 
     As shown in  FIG. 8  and  FIG. 11 , each second protective unit  3  comprises three connected plates  31  to wrap portions of the rear face  11 , a lower face  14  and one of the two side faces  13  of the main body  1 . The three plates  31  are integrally formed with a plastic material to constitute the second protective unit  3 . The second protective unit  3  further has a second chamfer face  32  corresponding to a lower edge and one of the two side edges of the rear face  11  of the body  1 . The second chamfer face  32  has an angle of 30 degrees to 45 degrees. 
     As shown in  FIG. 1  and  FIG. 5 , the upper edge, the lower edge and the two side edges of the rear face  11  of the main body  1  have a first curved face  15  corresponding to the first chamfer face  22  and the second chamfer face  32 . The first curved face  15  has a preferred angle of 30 degrees to 45 degrees, so that all the edges of the rear face  11  of the luggage case are smooth. 
     When the luggage case of the present invention is placed with other articles together, the first protective units  2  and the second protective units  3  can prevent the corners of the main body  1  from being scrapped or damaged. Besides, when drawing and pulling the luggage case, the first chamfer face  22  of the first protective unit  2 , the second chamfer face  32  of the second protective unit  3  and the first curved face  15  can avoid the luggage case from hitting other articles, so the luggage case can be pulled smoothly. 
     As shown in  FIG. 1 ,  FIG. 2 ,  FIG. 7  and  FIG. 8 , the first protective unit  2  has a slot  23 , and the second protective unit  3  has a slot  33 . The slots  23 ,  33  are disposed on the plates  21 ,  31  relative to the side face  13  of the main body  1 . The slots  23 ,  33  can be inserted with a strap  4 . Thus, the first protective unit  2  and the second protective unit  3  can be used to connect the strap  4  and the main body  1 . As shown in  FIG. 1 ,  FIG. 2  and  FIG. 8 , the second protective unit  3  of the present invention further has a recess  34  at an outer side thereof for connecting with a rotary wheel  35 , such that the second protective unit  3  and the wheel  35  are connected together, preventing the parts from scattering. The luggage case of the present invention can be assembled simply. 
     As shown in  FIG. 1  and  FIG. 2 , the main body  1  of the present invention is a hollow rectangular case made of textile fabric, so that the soft main body  1  can be compressed. Alternatively, the main body  1  is a hollow rectangular case composed of hard plastic cases. 
     As shown in  FIG. 12  and  FIG. 13 , the luggage case of the preferred embodiment of the present invention further comprises a pair of second protective units  5  on two lower corners of a front face  16  of the main body  1 . Each third protective unit  5  comprises three connected plates  51  to wrap portions of the front face  16 , the lower face  14  and one of the two side faces  13  of the main body  1 . The three plates  51  are integrally formed with a plastic material to constitute the third protective unit  5 . The third protective unit  5  further has a third chamfer face  52  corresponding to one of two side edges of the front face  16  and one of two side edges of the lower face  14  of the body  1 . The third chamfer face  52  has an angle of 30 degrees to 45 degrees. The two side edges of the front face  16  and the two side edges of the lower face  14  of the main body  1  have a second curved face  17  corresponding to the third chamfer face  52 . The second curved face  17  has a preferred angle of 30 degrees to 45 degrees, preventing hit and wear. 
     As shown in  FIG. 12  and  FIG. 13 , the third protective unit  5  comprises a support block  53  to hold against the ground. The support block  53  is integrally connected with the third protective unit  5  to prevent the parts from scatting. The luggage case of the present invention can be assembled simply. 
     Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.