Abstract:
A double wing bicycle fender is mounted on a frame pipe of a bicycle. When in use, a fender main body of the roll-up bicycle fender can be pulled out into an operative position at both sides of the shaft to increase the effective width of the fender for blocking the splashing of mud, water and road debris, and can also be rolled up on the shaft and collected in a holding body, thus it not only saves space but is aesthetically pleasing.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a bicycle fender, and more particularly to a double wing bicycle fender, wherein the fender main body can be rolled up on a shaft or can stretch out at both sides of the shaft to increase the effective width of the fender, which not only saves space but is aesthetically pleasing. 
     2. Description of the Prior Art 
     Bicycle fender is mounted above the wheels of a bicycle to protect rider from mud, dust and road debris. Most of the existing types of the bicycle fenders are arc-shaped, and this arc-shaped type of bicycle fender is only as wide as the width of the wheels as long as it can cover the wheels. However, the fender will be too narrow to fully block the splashing of water or mud when riding through mud or puddles. 
     The present invention has arisen to mitigate and/or obviate the afore-described disadvantages. 
     SUMMARY OF THE INVENTION 
     The primary object of the present invention is to provide a double wing bicycle fender, wherein the fender main body can be rolled up on a shaft or can stretch out at both sides of the shaft to increase the effective width of the fender, which not only saves space but is aesthetically pleasing. 
     To achieve the above object, a double wing bicycle fender in accordance with the present invention comprises: a mounting member, a pivoting end cap, a directional assembly, a holding body and a fender main body. The mounting member is a laminate structure and mounted on a bicycle. The pivoting end cap has one end pivoted to the mounting member and the other end defined with a pivoting portion. The directional assembly includes a directional seat and at least one movable member, the directional seat is placed into the pivoting portion of the pivoting end cap and includes at least one directional portion, the movable member is pivotally disposed in the pivoting portion of the pivoting end cap and provided with a plurality of positioning angles and a connecting portion, the positioning angles of the movable member is engaged with the directional portion of the directional seat. The holding body the pivoting end cap is disposed at one end of the holding body. The fender main body includes a shaft and at least one wing with one end fixed to and rolled up on the shaft, the shaft is pivotally inserted in the holding body, and the other end of the wing extends out of a lateral side of the holding body and is connected to the connecting portion of the movable member. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an exploded view of a double wing bicycle fender in accordance with the present invention; 
         FIG. 2  is an assembly view showing a stretched-out state of the double wing bicycle fender in accordance with the present invention; 
         FIG. 3  is a perspective view showing the stretched-out state of the double wing bicycle fender in accordance with the present invention; 
         FIG. 4  is a cross sectional view showing a rolled-up state of the double wing bicycle fender in accordance with the present invention; 
         FIG. 5A  is a first illustrative view showing the angle between the two movable members corresponding to the rolled-up state of the double wing bicycle fender in accordance with the present invention; 
         FIG. 5B  is a second illustrative view showing the angle between the two movable members corresponding to a half stretched-out state of the double wing bicycle fender in accordance with the present invention; 
         FIG. 5C  is a third illustrative view showing the angle between the two movable members corresponding to the fully stretched-out state of the double wing bicycle fender in accordance with the present invention; and 
         FIG. 6  shows that the double wing bicycle fender in accordance with the present invention is mounted on the frame pipe of a bicycle. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention. 
     Referring to  FIGS. 1-3 , a double wing bicycle fender in accordance with the present invention is mounted on a bicycle having a plurality of frame pipes and comprises: a mounting member  10 , a pivoting end cap  20 , and a fender assembly  30 . 
     The mounting member  10  is a laminate structure which is foldable and deformable and mounted on one of the frame pipes. 
     The pivoting end cap  20  has one end pivoted to the mounting member  10  and the other end defined with a pivoting portion  21  which includes two opposite sheet portions. At both sides of each of the two opposite sheet portions of the pivoting portion  21  are defined two assembling holes  211 , and these assembling holes  211  are aligned in pairs. The pivoting portion  21  is defined with a directional-seat hole  212 , and each of two opposite lateral sides of the pivoting end cap  20  is formed an engaging protrusion  213   
     The fender assembly  30  includes a directional assembly  31 , a fender main body  32  and a fender-holding assembly  33 . The fender main body  32  is received in the fender-holding assembly  33  and connected to the pivoting end cap  20  via the directional assembly  31 . 
     The directional assembly  31  includes a directional seat  311 , two movable members  312  and a positioning seat  313 . The directional seat  311  is placed into the pivoting end cap  20  via the directional-seat hole  212  and includes two directional portions  314  and a positioning protrusion  315  which protrudes out of the directional-seat hole  212 . The two movable members  312  are pivotally disposed between the two sheet portions of the pivoting portion  21  of the pivoting end cap  20  and each are provided with a plurality of positioning angles  316 , teeth  317  and a connecting portion  318 . The two movable members  312  are engaged with each other via the teeth  317 , while the positioning angles  316  of the two movable members  312  are engaged with the two directional portions  314  of the directional seat  311 . Each of the two movable members  312  is defined with an assembling hole  319  aligned with the assembling holes  211  of the pivoting portion  21  of the pivoting end cap  20 , so that the movable members  312  are pivoted to the pivoting end cap  20  by rivets  40  inserted in the assembling holes  319 ,  211 . The positioning seat  313  is disposed at the other end of the mounting member  10 . 
     The fender main body  32  includes a shaft  321 , two wings  322 , two trim strips  323  and a positioning member  324 . The shaft  321  has one end formed with a protruding shaft portion  325  which is pivotally connected to the positioning seat  313  by being inserted therein and the other end pivoted to the positioning member  324 . Each of the wings  322  has one end fixed to and rolled up around the shaft  321 , and the trim strips  323  are fixed to the other end of the wings  322 , respectively. 
     The fender-holding assembly  33  includes a holding body  331 , two plates  332  and a cover  333 . Both lateral surfaces of the holding body  331  are defined with a plate-receiving slot  334  and two engaging holes  335  at both ends thereof respectively. In a top surface of the holding body  331  neighboring to the plate-receiving slots  334  is formed a directional-seat positioning hole  336 . The pivoting end cap  20  is disposed at one end of the holding body  331  where the directional-seat positioning hole  336  is located, and the directional assembly  31  and the fender main body  32  are received in the holding body  331  in such a manner that the engaging protrusions  213  of the pivoting end cap  20  are engaged in the engaging holes  335  of the holding body  331 , and the positioning protrusion  315  of the directional seat  311  protrudes out of the directional-seat positioning hole  336 . The cover  333  is provided with two opposite protrusions  337  and a positioning-member receiving cavity  338  and mounted to the other end of the holding body  331  in such a manner that the protrusions  337  are engaged in the engaging holes  335  of the holding body  331 . The two wings  322  of the fender main body  32  extend out of the plate-receiving slots  334  of the holding body  331  and are connected to one end of the respective plates  332 , and the connecting portion  318  of the movable members  312  of the directional assembly  31  is engaged in the other end of the respective plates  332 . The positioning member  324  of the fender main body  32  is pivotally connected to the cover  333  by being inserted in the positioning-member receiving cavity  338  therein. The fender main body  32  is positioned by pivotally connecting both ends of the shaft  321  to the positioning seat  313  on the holding body  331  and the cover  333 , respectively. 
     The above description shows that each of the two plates  332  has one end fixed to the trim strips  323  and the other end engaged with the connecting portion  318  of the movable members  312  of the directional assembly  31 . Hence, by pulling the end of the each of the plates  332  which is fixed to the trim strips  323 , the plates  332  will simultaneously pull the wings  322 , so that the wings  322  will be reeled off the shaft  321 . When one end of the wings  322  is pulled out, it will cause the motion of the end of the plates  332  which is connected to the movable members  312  and make the movable members  312  pivot in opposite directions from each other while the teeth  317  of the two movable members  312  are maintained in an engaged state, and the positioning angles  316  are maintained in an engaged relation with respect to the directional portions  314  of the directional seat  311 . Hence, the two movable members  312  can be adjusted to have different angles therebetween through pivotal engagement of the teeth  317  and of the positioning angles  316  with the directional portions  314 , as shown in  FIGS. 5A ,  5 B and  5 C, and  FIG. 5C  shows that the plates  332  are adjusted to the maximum angle. After the plates  332  are pulled out, the two wings  322  of the fender main body  32  will stretch out at both sides of the holding body  331  to protect rider from dust, mud and road debris. 
     With the mounting member  10 , the fender of the present invention can be mounted to one of the pipes of the bicycle frame A, as shown in  FIG. 6 , the mounting member  10  can be folded or deformed to adapt to the pipes of the bicycle frame and then is fixed thereon by double adhesive tape or hook and loop tape. When the user wants to use the fender main body  32 , she/he can pull out the plates  332  of the fender-holding assembly  33  to make the wings  322  stretch out at both sides of the holding body  331  to protect rider from dust, mud and road debris. Furthermore, when the wings  322  stretch out, the effective width of the fender of the present invention for efficiently keeping off dust and road debris will be much larger than the width of the wheels of the bicycle and determined by the width of the wings  322  and the angle between the two movable members  312  of the directional assembly  31 . When the user doesn&#39;t want to use the fender main body  32 , she/he can push the plates  332  back to their original positions where the plates  332  cover the plate-receiving slots  334  of the holding body  331 , so that the two wings  322  will be rolled up on the shaft  321  of the fender main body  32  again, and the fender main body  32  can be completely received in holding body  331 , which not only saves space but is aesthetically pleasing. 
     While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.