Abstract:
A backpack is composed of a bag and a frame assembly combined with the bag. Thereby, the disclosed backpack presents a constant solid contour even there is nothing loaded therein. Also, the frame assembly facilitates enhancing the strength of the backpack for resisting external force. Shark absorbing ability of foam is also provided. Especially when a motorcycle falls, a rider thereon can have his/her back, head and neck protected by the bag. Besides, a luminary may be provided on the bag as so to call for a behind driver&#39;s attention and avoid accidents.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Technical Field 
         [0002]    The present invention relates to backpacks, and more particularly, to a backpack provided with a frame assembly and suitable for drivers of bicycles or motorcycles to use during their driving. 
         [0003]    2. Description of Related Art 
         [0004]    The major purpose of a backpack is to accommodate objects therein. Some desirable backpacks are advantaged by easy loading and unloading of objects and therefore free users hands from holding the objects. Especially, when riding, a rider has to hold handles of a bicycle or a motorcycle to steer with his/her both hands, and thus needs a backpack for carrying objects. As in recent years, people intend more to leisure activities such as motorcycle trips or bicycle trips, backpacks are even more popularly implemented to carry various objects for meeting the riders&#39; needs during their riding. 
         [0005]    However, as a motorcycle or a bicycle is only equipped with two wheels, a rider thereof is liable to fall down during his/her riding. When the rider accidentally falls down from the motorcycle or bicycle, an unrecoverable damage may happen to him/her if he/she gets injured at his/her head, neck or spine. Hence, it is a creative solution if a backpack is capable of protecting a rider wearing the same and enhancing the safety during the rider&#39;s riding. 
         [0006]    Further, though some motorcycles are provided with bags or boxes thereon for accommodating objects, such bags or boxes are typically fixedly settled and not removable. Therefore, the objects left in the bags or boxes that can not be carried along with the users may liable to be stolen. On the other hand, a tail lamp at a rear potion of a motorcycle is generally located lower as compared with a rider thereon. Thus, it would be difficult for a driver in a closely approaching large vehicle to detect illumination of such a tail lamp at night. As a result, accidents such as fender-bender or crash may frequently happen. 
       SUMMARY OF THE INVENTION 
       [0007]    The present invention has been accomplished under these circumstances in view. It is one objective of the present invention to provide a backpack having a bag and a frame assembly. The disclosed backpack is provide with a support force and suitable for drivers of bicycles or motorcycles to use during their driving. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0008]    The invention as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings, wherein: 
           [0009]      FIG. 1  is a perspective view of one embodiment of the present invention; 
           [0010]      FIG. 2  is an exploded view of the embodiment of the present invention; 
           [0011]      FIG. 3  is a perspective view of a frame assembly according to the embodiment of the present invention; 
           [0012]      FIG. 4  is a top view of the frame assembly according to the embodiment of the present invention; 
           [0013]      FIG. 5  is a back view of the frame assembly according to the embodiment of the present invention, showing a groove structure and a box structure; 
           [0014]      FIG. 6  is a perspective view showing a net accessory assembled to the frame assembly according to the embodiment of the present invention; 
           [0015]      FIG. 7  is an applied view showing the net accessory holding an object according to the embodiment of the present invention; 
           [0016]      FIGS. 8 to 10  are schematic drawings illustrating operation of a buckle assembly according to the embodiment of the present invention; and 
           [0017]      FIGS. 11 to 12  are applied views showing operation of a bottle receiving recess according to the embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0018]    As shown in  FIG. 1 , a perspective view of one embodiment of the present invention, the disclosed backpack presents a constant solid contour even when there is nothing loaded therein. Also referring to  FIG. 2 , the disclosed backpack comprises a bag  10  and a frame assembly  20 . The bag  10  further comprises a first fixing board  11 , a second fixing board  11 ′ (positioned in the bag  10  symmetrically with respect to the first fixing board  11 ), a third fixing board  12 , a fourth fixing board  13 , and a fifth fixing board  13 ′ (positioned in the bag  10  symmetrically with respect to the fourth fixing board  13 ). According to the present embodiment, the first and second fixing boars  11 ,  11 ′ are respectively formed into a 1 shape. The third fixing board  12  is curved. The fourth and fifth fixing boards  13 ,  13 ′ are respectively formed into a rectangle. Therein, the first and second fixing boars  11 ,  11 ′ are settled at two upper side of the bag  10 . The third fixing board  12  is settled at a center of a surface of the bag  10 . The fourth and fifth fixing boards  13 ,  13 ′ are settled at two lower side of the bag  10 . The fixing boards  11 ,  11 ′,  12 ,  13 ,  13 ′ further comprise a plurality of combining holes a. The fixing boards may be combined with the frame assembly  20  by the combining holes a in a screwing or riveting means. Thereby, the frame assembly  20  can be firmly combined with the bag  10 . The fixing boards may be settled inside the bag  10  or in an interlining of the bag  10  so as to integrate the bag  10  with the frame assembly  20 . Please refer to  FIGS. 2 through 5 . The frame assembly  20  comprises a bottom frame  21 , a first lateral frame  22 , and a second lateral frame  23 . The bottom frame  21 , the first lateral frame  22 , and the second lateral frame  23  further comprise a plurality of combining holes b. Two ends of the bottom frame  21  are connected to the third fixing board  12 . One end of the first lateral frame  22  and one end of the second lateral frame  23  are connected to the third fixing board  12 , respectively. An opposite end of the first lateral frame  22  is connected to the first fixing board  11  while an opposite end of the second lateral frame  23  is connected to the second fixing board  11 ′. Thus, the first lateral frame  22 , the bottom frame  21  and the second lateral frame  23  combined in sequence to form the frame assembly  20 . Furthermore, each unit of the frame assembly  20  has a solid sectional structure. According to the present embodiment, the solid sectional structure is a groove structure d or a box structure e (as shown in  FIG. 5 ). The groove structure d or the box structure e provides the frame assembly  20  with enhanced strength for resisting various external forces. Therefore, the solid contour of bag  10  can be held and the structural strength of the frame assembly  20  can be improved entirely. Moreover, the bottom frame  21  is formed into a roughly U shape and has two upper ends bent inward. The bottom frame  21  is connected with the third fixing board  12  at the two bent upper ends and is connected with the fourth and fifth fixing boards  13 ,  13 ′ at two lower ends. The first lateral frame  22  and the second lateral frame  23  are shaped as a ladle, respectively. Further, the first lateral frame  22  and the second lateral frame  23  are arranged such that openings of the ladles are facing each other. Therein the two lower ends of the bottom frame  21  are connected to the fourth fixing board  13  and the fifth fixing board  13 ′. According to the present embodiment, the fixing boards and frame assembly  20  are combined by means of a plurality of bolts that pass through the combining holes a and b so as to reinforce the combination between the bottom frame  21  and the bag  10 . As there are numerous bolts shown in  FIG. 2 , only some of the same are selectively marked with denotative letter c and assembly lines. Also, the design of continuously bent frames contributes to the capability of resisting external force. 
         [0019]    Please see  FIGS. 2 ,  6  and  7 . In the present embodiment, a plurality of connecting holes  201  may be provided on the bottom frame  21 , the first lateral frame  22 , and the second lateral frame  23 . Thereby, a net accessory  30  including a net  31  and a plurality of combining belts  32  can be attached to the bag  10  by fastening the combining belts  32  around the connecting holes  201 . Thus, an accommodating space is defined between the net accessory  30  and the bag  10 . Further, the magnitude of the accommodating space can be adjusted by modifying the length of the combining belts  32 . For example, a helmet h can be stored in and carried by the described manner, as shown in  FIG. 7 . Alternatively, instead of the net accessory  30 , a plurality of ropes may be assembled to the connecting holes  201  so that objects can be suspended thereon. Of course, if the ropes are crisscross arranged and fastened around the connecting holes  201 , an extendable accommodating space can be defined for flexible usage. Furthermore, if the ropes are made of an elastic material, the accommodating space can be further extended and an elastic fixing force can be provided. Thus the convenience is achieved. 
         [0020]    In  FIGS. 8 to 10 , two shoulder straps  14  are provided on the bag  10 . At least one of the shoulder straps  14  is equipped with a female buckle  141  for receiving therein a male buckle  1421  deposited on a pocket  142 . As the male buckle  1421  is substantially a rectangle, it can be slid in to the female buckle  141  by two long sides thereof and when arriving a predetermined position, the male buckle  1421  can be rotated for 90 degrees by rotating the packet  142 . Thereupon, the male buckle  1421  and the female buckle  141  can be fittingly combined and the pocket  142  can be secured from falling off the bag  10 . While the buckle assembly of the present embodiment is illustrated, it is to be understood that many other buckle assemblies may be applied to the present invention. In addition, the pocket  142  may be realized by any objects having a male buckle on itself or on a housing or shell covering it that mates with the female buckle, such as a mobile phone case, a Walkman or an MP 3 player. 
         [0021]    As shown in  FIGS. 11 and 12 , a bottle receiving recess  15  is provided on the bag  10 . The bottle receiving recess  15  comprises a pouch  151  and a fixing belt  152 . The fixing belt  152  further comprises an opening  1521 . When a bottle b is set in the bottle receiving recess  15 , a neck thereof can pass through the opening  1521 . Then the fixing belt  152  can be combined with the pouch  151  so as to fix the bottle b firmly. Besides, a set of hook and loop tapes  153  may be provided on the pouch  151  and the fixing belt  152 , respectively, at aligned locations. Thereby, the fixing belt  152  will not be departed from the bottle b unintentionally so that the bottle b can be securely positioned for easy access and placing. 
         [0022]    Besides, as shown in  FIG. 12 , a luminary  16 , such as a light-emitting diode (LED), may be provided on the bag  10 , so that when a rider rides at night wearing the disclosed subject matter, the luminary  16  functions for warning a driver in a car behind the rider. 
         [0023]    To sum up, since the frame assembly  20  is combined with the bag  10 , the disclosed backpack can present a constant solid contour, which is advantaged by the convenience of easy loading and unloading objects, and enhanced impact resistance. Also, because the frame assembly  20  is made of metal, plastic, or a compound material, the properties of the materials facilitate improving the safety of the backpack. In addition, as foam is filled in the interlining of the bag  10 , when the rider receives impact, the elasticity of the foam and the rigidity of the frame assembly  20  can efficiently buffer the transient strong impact so as to reduce potential damage and provide enhanced comfort and safety to the user. On the other hand, since the backpack is located relatively higher, even a driver in a higher cockpit of a large vehicle can easily detect the light radiates from the luminary  16  on the backpack. Hence, the disclosed backpack has the function of warning a behind driver so as to achieve a completely active protection. 
         [0024]    Although a particular embodiment of the invention has been described in detail for purposes of illustration, it will be understood by one of ordinary skill in the art that numerous variations will be possible to the disclosed embodiments without going outside the scope of the invention as disclosed in the claims.