JPH08295276A - Mud shield for bicycle - Google Patents

Abstract

PURPOSE: To easily install and make it hard to be displaced positionally a mud guard for a bicycle. CONSTITUTION: A mud guard for a bicycle comprises a mud guard body 11, locking parts 12 and 13 formed in a side part 11a of the mud guard body 11 and lockable to a front fork of a bicycle, and a mounting part 20 formed on the surface 11b of the mud guard body 11 and lockable to the front fork. Also, it comprises a mud guard body 11, a locking part formed on the side part of the mud guard body 11 and lockable to a seat stay of the bicycle, and a mounting part formed on the surface of the mud guard body 11 and lockable to the seat stay. In addition, the mud guard becomes an introduction valve when the top end of the locking part locks the front fork or seat stay.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mudguard for bicycles, and more particularly to a mudguard for bicycles that can be easily mounted and is less likely to be displaced in the mounting position.

[0002]

2. Description of the Related Art Conventional mudguards for bicycles are arc-shaped ones disposed above the front wheels or rear wheels, and the front wheels are rotated by the action of centrifugal force due to the rotation of the front wheels or the rear wheels. Alternatively, it prevents the mud and rainwater attached to the rear wheels from splashing and splashing on people riding a bicycle. Further, the mudguard mainly for aesthetics is arranged on a bicycle in consideration of a peculiar feeling of molding, and for example, there is a mudguard for a bicycle for children. In these bicycle mudguards, an arc-shaped mudguard is attached to a front fork for supporting the front wheel of the bicycle or a seat stay for supporting the rear wheel of the bicycle with a screw or the like.

[0003]

However, in the above-mentioned conventional example, after the bicycle is assembled, the mudguard mounting screws and the like loosen due to aging, so that the mudguard position deviates from the initial mounting position. However, there are drawbacks such as contact with the front or rear wheels of the bicycle and unstable running of the bicycle. Therefore, an object of the present invention is to provide a bicycle mudguard that eliminates the above-mentioned drawbacks of the conventional example and does not shift the mudguard position even if the mudguard mounting screw or the like is loosened.

[0004]

In order to solve the above-mentioned problems, the structure of the first invention of the present application relates to a mudguard body and a front fork of a bicycle, which is formed on a side portion of the mudguard body. A mudguard for a bicycle, comprising: a stop portion that can be stopped and an attachment portion that is formed on a surface of the mudguard body and that can be fixed to the front fork. Further, the structure of the second invention is formed on the mudguard body and a side portion of the mudguard body,
A mudguard for a bicycle, comprising: a locking portion that can be locked to a seat stay of a bicycle; and a mounting portion that is formed on the surface of the mudguard body and that can be fixed to the seatstay. Further, the structure of the third invention is that in the structure of the first or second invention, the tip of the locking portion serves as an introduction valve when locking the front fork or the seat stay.

[0005]

In the structure of the first aspect of the invention, even if the front fork and the mounting portion are loosened due to aging or the like,
Since the locking portion is locked to the front fork, the mudguard body is unlikely to be displaced. Further, in the configuration of the second invention, even if the seat stay and the mounting portion are loosened due to secular change or the like, the locking portion is locked to the rear wheel support frame, so the mudguard Positional deviation of the body is unlikely to occur. Further, in the structure of the third invention, in the structure of the first or second invention, an introduction valve for the front fork or the seat stay with which the locking portion is locked is formed at the tip of the locking portion. Therefore, it becomes easy to lock the locking portion to the front fork or the seat stay.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. 1 is a plan view of an embodiment of the present invention, and FIG.
Shows the AA sectional structure of FIG. 1, FIG. 3 shows the side surface of this embodiment, and FIG. 4 shows the bottom surface of this embodiment. 1 to 4
In the above, the locking portions 12 and 13 are formed on both side portions 11a of the mudguard body 11 of the front wheel mudguard 10. Further, introduction valves 12a and 13a are formed at the tips of the locking portions 12 and 13, respectively. Although the locking portions 12 and 13 are formed integrally with the main body 11, they may be formed separately and combined.
Further, the engaging portions 12 and 13 can improve the appearance of the mudguard 10. In addition, the main body 11 and the locking portions 12 and 13
The material is a synthetic resin or surface-coated metal. Recesses 14 and 15 are formed in portions of the mudguard body 11 facing the locking portions 12 and 13. The recesses 14 and 15 are
This is to ensure that the locking portions 12 and 13 lock the front fork 30 described later.

A long hole 16 is formed in the center of the mudguard body 11 at a position on a line connecting the locking portions 12 and 13. A hole 17 for caulking tack 23 described later is formed in the vicinity of the long hole 16,
The reinforcing rib 18 has the rear surface 11 near the long holes 16 and the holes 17.
It is formed in c. Note that 11b is the surface of the mudguard body 11, 11d is one end of the mudguard body 11, and 11e is the other end of the mudguard body 11. L as a mounting part for the mudguard 10
The mold mounting member 20 is composed of a base portion 21 and a mounting portion 22 that are combined in an L shape, and the mounting portion 22 is arranged on the surface 11 b so as to pass through the elongated hole 16. Holes 21 in the base 21
a is formed, and the mounting portion 22 is formed with a hole 22a. The base 21 has the hole 21a by means of a crimping tack 23.
It is fixed to the back surface 11c of the mudguard body 11 through the holes 17 and.

With the above structure, the mudguard 10 can be attached to the front fork 30 of the bicycle as shown in FIGS. 5 and 6, the lower two parts of the front fork 30 of the bicycle are the front fork legs 31 and 32, and the bases (upper ends in the drawing) of the front fork legs 31 and 32 are joined together. A hole 30a is formed in the connecting portion 33. The shaft of the front wheel 42 is rotatably attached to the tips (lower ends in the drawing) 31a and 31b of the front fork legs 31 and 32. Further, since the traveling direction of the bicycle is changed by the handle bar 43 fixed to the upper end of the front fork 30, the front fork 30 is fixed to the front end 41a of the frame 41 of the bicycle so as to be rotatable in the horizontal direction in the drawing. Of the two locking portions 12, 13 formed on both sides 11a of the mudguard body 11 of the mudguard 10, the locking portion 12 is used as the front fork foot 3
1 and the locking portion 13 is locked to the front fork foot 32.

The mounting bracket 20 includes a bolt 34 and a nut 35.
Allows the front fork 30 to pass through the holes 22a and 30a.
It is fixed to the joint portion 33 of both fork legs 31 and 32.
A flat washer 36 is arranged between the nut 35 and the mounting member 20 in order to prevent the nut 35 from loosening. Further, the introduction valves 12a and 13a for the front fork 30 with which the locking portions 12 and 13 are locked are attached to the locking portion 1.
Since it is formed at the tips of 2 and 13, the locking portions 12 and 1
It becomes easy to lock 3 to the front fork 30. Further, even if the front fork 30 and the mounting portion 22 of the mounting bracket 20 are loosened due to secular change (loosening of the screw engagement between the bolt 34 and the nut 35), the locking portions 12 and 13 are not locked. Since it is locked by 30, the displacement of mudguard 10 is unlikely to occur.

Similarly, as shown in FIG. 6, the rear wheel mudguard 50 can be fixed to the seat stay 61. The structure of the mudguard 50 is similar to the structure of the front wheel mudguard 10 described above. In the mudguard 50, the mudguard body 51 corresponds to the mudguard body 11, the locking portion 53 corresponds to the locking portions 12 and 13, and the mounting bracket 53 is the mounting bracket 20.
It corresponds to. Therefore, the locking tool 53 is locked to the seat stay 61, and the mounting bracket 53 is fixed to a bracket (not shown) mounted between the two seat stays 61 in the same manner as the mounting bracket 20 with bolts and nuts (not shown). . In this way, the mudguard 50 can be easily fixed to the seat stay 61. Further, even if the fixing between the seat stay 61 and the mounting bracket 53 is loosened due to aging or the like, the locking portion 52 is locked to the seat stay 61, so that the mudguard 50 is less likely to be displaced. .

In the above embodiment, the locking portions are formed on both side surfaces of the mudguard body, but the invention is not limited to this and at least one side surface of the mudguard body can be used. Good.

[0012]

According to the mudguard for a bicycle according to the first aspect of the present invention, the position of the mudguard attached to the front fork for the front wheel of the bicycle is unlikely to shift due to secular change or the like. Therefore, it is possible to prevent the mudguard for the front wheels from coming into contact with the front wheels and the instability of the bicycle due to the displacement of the mudguard for the front wheels. Further, according to the bicycle mudguard according to the second aspect of the present invention, the position of the mudguard attached to the rear wheel supporting seat stay of the bicycle is unlikely to shift due to secular change or the like. For this reason, it is possible to prevent the mudguard for the rear wheel from contacting the rear wheel and the instability of running of the bicycle due to the displacement of the mudguard for the rear wheel. Further, according to the bicycle mudguard of the third aspect of the present invention, the locking portion formed on the side surface of the mudguard body can be easily locked to the front fork or the seat stay. Second
The work of assembling the mudguard according to the invention of claim 1 to a bicycle becomes easy.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a side view of the embodiment.

FIG. 4 is a bottom view of the embodiment.

FIG. 5 is an explanatory diagram of a mounting method of the one embodiment.

FIG. 6 is an explanatory diagram of a usage state of the one embodiment and another embodiment.

[Explanation of symbols]

 10 Mudguard 11 Mudguard body 11a Mudguard body side 11b Mudguard body surface 12, 13 Locking part 20 Mounting bracket 30 Front fork 50 Mudguard 51 Mudguard body 52 Locking part 53 Mounting bracket 61 Seat stay

Claims (3)

[Claims] 1. A mudguard body, and a locking portion formed on a side portion of the mudguard body and capable of being locked to a front fork of a bicycle,
A bicycle mudguard comprising a mounting portion formed on a surface of the mudguard main body and fixed to the front fork. 2. A mudguard body, a locking portion formed on a side portion of the mudguard body, which can be locked to a seat stay of a bicycle, and a surface formed on the mudguard body. A mudguard for a bicycle, comprising a mounting portion that can be fixed to a stay. 3. The bicycle mudguard according to claim 1, wherein the tip of the locking portion is an introduction valve when locking the front fork or the seat stay.