JPH0542083U - Throat Guard - Google Patents

Abstract

(57) [Abstract] [Purpose] When the impact of a mudguard such as a bicycle is applied, the tip of the mudguard body may be deformed, or it may bend and come into contact with the tire, making it impossible to run or damaging the tire. Prevent from doing. [Structure] A mudguard guard (11) mounted on the outside of the end of the mudguard main body (1) by a fixing means, and an abutting part (12) along the surface of the mudguard main body (1) And a buffer portion 13 formed, and an end portion of the contact portion is the same as or slightly extends from the main body terminal of the mudguard, and is fixed to the guard terminal.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mudguard guard for a bicycle or the like.

[0002]

[Prior Art]

 Throat such as a bicycle is generally formed by using a metal plate, and is attached so as to cover the upper portions of the front wheels and the rear wheels along the shape of the tire 3. When installing these mudguards, they are partially fixed to the front wheel support frame and body frame through hinges, etc., but the rear end of the front wheel and the rear end of the rear wheel are designed to prevent lateral shake. 12 is supported by a steady rest 4 as shown in a perspective view. The steady rest 4 is gripped by a stay retainer 5 made up of a stay retainer 6 bent in a semi-annular shape and fixed portions 7 extending above and below the stay retainer 6, and a plurality of staples are held. It is integrally assembled and fixed to the outer surface of the main body 1 of the mudguard by using the sprue 8.

In addition to the longitudinal end of the mudguard body 1 being cut off, it is bent inward to prevent being caught, or the tip is covered with a thin metal plate or synthetic resin. ..

[0004]

[Problems to be solved by the device]

 In this way, when a strong impact is applied to the terminal part due to collision with other objects or falling of the car body, this part will be deformed and the bicycle etc. will be in a state where it cannot run, Accidents are likely to occur, such as the tip bending inwards and making contact with the tire, damaging it.

In order to prevent such an accident, it is an object of the present invention to provide a mudguard guard attached to the terminal of the mudguard body.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention is mounted on the outside of the end of the mudguard body by a fixing means, and the end is the same as or different from the terminal of the mudguard body. A guard that extends slightly from the terminal of the main body of the shock absorber.The guard is formed integrally with the contact portion that is in intimate contact along the curve of the surface of the mudguard body, and is projected outward. It is a mudguard guard characterized by having a buffer part.

Then, the fixing means of the guard against the mud guard is provided with a screw mounting hole penetrating the base end of the guard against the guard and a back surface of the tip of the guard as the sticking means. It is characterized in that a positioning projection is formed which is engaged with a projection insertion hole formed in the main body of the mudguard to be retained.

Further, the fixing means is characterized in that, as the fixing means, a screw mounting hole and a male screw member insertion hole are provided at a base end portion and a tip end portion of the mudguard, respectively.

[0009]

[Action]

 The mudguard body is protected by attaching a mudguard guard to the terminal, and since the mudguard guard is closely attached to the mudguard body, The guards are reinforced with each other. Therefore, even if an impact is applied to the end of the mudguard, the impact is buffered by the mudguard and does not reach the main body of the mudguard. Therefore or fallen to the terminal of the mudguard body is non-traveling damaged, Oh Rui tire is not damaged by the deformation of the mudguard body.

[0010]

【Example】

 FIG. 1 is a perspective view showing a mode of use of the mudguard of the present invention, and FIG. 2 is a vertical cross-sectional view of the mudguard guard taken along a center line along the longitudinal direction. In the present invention, the same or similar parts and members as those of the prior art are designated by the same reference numerals. As shown in these drawings, the mudguard 11 is integrally formed using a material such as polypropylene or polyethylene, and is attached to the outside of the rear end portion of the rear wheel mudguard body 1 of a bicycle, for example. Reference numeral 2 in FIG. 1 denotes a vehicle body frame, and shows a state in which a part of the rear wheel slack preventing body is fixed to the vehicle body frame 2 via a hinge 2a. As shown in the front view of FIG. 3, the rear view of FIG. 4, the left side view of FIG. 5, the plan view of FIG. 6, and the bottom view of FIG. It has a wing-shaped spread to the left and right at the lower end), and its back surface (back surface) is curved along the longitudinal curved surface of the mudguard body 1 and has a curved surface along the widthwise curved surface of the mudguard body 1, or The abutting portion 12 formed to have a radius of curvature slightly smaller than that, and the abutting portion 12 are integrally formed with the abutting portion so as to protrude outward (front side) in the middle position in the width direction to form a hollow rear surface. And a buffer portion 13. The tip end of the contact portion 12 is set to be the same as the terminal of the main body of the mudguard or slightly protruding from the end of the main body of the mudguard when mounted on the main body 1 of the mudguard. According to the embodiment, the mudguard guard 11 is mounted on the outside of the end of the mudguard main body 1, and therefore, the screw attachment hole 14 formed in the longitudinal base end (upper end in FIG. 3) 11a. And a positioning protrusion 16 provided on the back side of the longitudinal end portion 11b. As shown in the exploded perspective view of FIG. 8, the screw mounting hole 14 is a through hole having a circular screw mounting seat 15 on the front side, and the positioning protrusion 16 is a sectional view of FIG. 9 and a perspective view of FIG. As shown in the figure, the head portion 17 has a rectangular shape and the neck portion 18 has a width narrower than that of the head portion.

On the other hand, at the rear end of the rear wheel mudguard body 1, as described in the prior art, and as shown in FIG. 8, a stay stopper 5 is attached to the mudguard body 1 using screws 8. Two upper and lower screw holes 1a and 1b for fixing and a rivet hole 1c provided between the upper and lower screw holes 1a and 1b are formed. Further, the body 1 of the mudguard is provided with a projection insertion hole 20 into which the positioning projection 16 is engaged, further toward the terminal side than the positions of the screw holes 1a and 1b and the rivet hole 1c. The protrusion insertion hole 20 is a hole having a narrow width portion 21 facing toward the end of the mudguard and is convex in a front view. The width of the narrow width portion 21 is the width of the neck portion 18 of the positioning protrusion 16. Although the width is set to be larger and smaller than the width of the head portion 17, the wide portion 22 has a size such that the head portion 17 of the positioning protrusion 16 can freely move in and out. The distance between the narrow portion 21 and the upper screw hole 1a is set equal to the distance between the positioning protrusion 16 of the mudguard guard 11 and the screw mounting hole 14.

To install the mudguard 11 of the present invention on the mudguard body 1, the procedure is as follows. That is, referring to FIG. 8, the first screw 8 of the stay stopper 5 for fixing the main body 1 and the steady rest 4 is removed, and the rear surface of the guard 11 is removed. After contacting the surface of the main body and inserting the positioning projection 16 into the wide portion 22 of the projection insertion hole 20, push the mudguard guard 11 against the mudguard main body surface, Move to. By this operation, the contact portion 12 of the front end portion 11b of the mudguard 11 is brought into close contact with the surface of the mudguard main body 1, and the neck portion 18 of the positioning projection 16 and the narrow portion 22 of the projection insertion hole 20. Engage with each other and are prevented from coming off by the head 17, and the screw mounting hole 14 of the mudguard guard 11 is aligned with the upper screw hole 1a of the mudguard body 1. Therefore, another first screw 8a, which is longer than the conventional screw 8, is screwed into the first female screw hole 9a of the backing plate 9 through the screw mounting hole 14, the stay stopper 5, and the main body 1 of the shelter. Thus, the base end portion 11a of the mudguard guard 11 is also fixed to the mudguard body 1, and the entire mudguard guard is fixed. A backing plate 9 having a first female screw hole 9a and a second female screw hole 9b is secured to the rivet holes 1a and 9c by rivets 10 on the inner surface side of the thief. As shown in FIG. 10, the portion of the head portion 17 of the positioning projection 16 corresponding to the jaw portion is a chamfered inclined surface 17a, so that the swaying guard 11 in the direction of the swaying terminal is provided. Movement is easy.

According to this embodiment, the positioning projection 16 for fixing the tip portion 11b of the mudguard guard 11 to the mudguard body 1 is provided on the rear surface of the mudguard guard 11, Although not visible from the outer surface, attachment of the mudguard 11 to the mudguard main body 1 is achieved only by the long first screw 8a, and the stay stopper 5 is also fixed.

As described above, when the bicycle is hit by a rear-end collision or receives a shock such as a fall, the rear guard part 11 which is most likely to be damaged is attached to the rear end portion of the rear wheel rear guard body, Even if a shock is applied to the end of the mudguard, the shock first acts on the buffer section 13. However, when this buffer section 13 is pressed, this pressing force is buffered by the buffer section 13 and the mudguard guard is provided. The whole expands in the width direction, and the pressure resistance of the contact portion 12 is further enhanced. In addition, since the muffler guard 11 is molded from polypropylene or polyethylene, it has elasticity, and because it is reinforced by closely adhering to the main body 1 of the muffler, it is hard to break and damage to the mister Is prevented. Therefore, damage to the mudguard prevents the bicycle from running and the tires from becoming damaged.

FIG. 11 is a perspective view of a mudguard 31 according to another embodiment. As shown in FIG. 11, in addition to the screw mounting hole 34 having the circular screw mounting seat 35 formed in the base end portion 33a, the male guard member mounting hole 36 is formed in the tip 33b of the mudguard guard 31. It will be installed. The male screw member insertion hole 36 is a means for fixing the tip 33b to the mudguard body 1 instead of the positioning protrusion 16 of the previous embodiment, and a hexagonal nut mounting seat 37 is formed on the outer side. To be done. A hexagonal nut (not shown) is attached to the nut mounting seat 37, and is screwed to a male screw member (not shown) inserted from the back side of the mudguard to fix the mudguard guard 31. According to this embodiment, by strongly tightening the male screw member (not shown), the mudguard guard 31 is closely adhered to the mudguard main body 1.

In these embodiments, the guard for the rear wheel thud is mainly described, but the guard can be similarly attached to the front end and the rear end of the front wheel thud.

Furthermore, the mudguard of the present invention can be applied to light vehicles other than bicycles.

[0018]

[Effect of the device]

 As described above, the present invention is a mudguard guard that is attached to the outside of the end of the mudguard body, and includes a contact portion that closely contacts the curved surface of the mudguard body and a contact portion. And a shock-absorbing portion that is integrally formed and protrudes outward, and the end portion of the abutting portion is the same as or slightly extends from the main body terminal of the mudguard and is fixed.

Therefore, even if a light vehicle such as a bicycle equipped with this mudguard guard collides with another object or falls and the shock is applied to the mudguard, the terminal of the mudguard body is broken. It will not be damaged, will be deformed and will not run, or will not damage the tires. In addition, the shape is beautiful, which leads to an image of a bicycle. In the meantime, since the mudguard can be provided at a low cost, it can be applied without increasing the cost of bicycles.

Since the mudguard is attached to the mudguard body by a fixing means composed of a positioning projection formed on the back surface of the tip and a screw mounting hole penetrating the base, the positioning guard is positioned. The part does not appear to the outside, and can be installed simply by providing a projection insertion hole in the main body of the mudguard.

In addition, in the trouser guard provided with the male screw member insertion hole in place of the positioning projection, the molding is easy and the cost is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an attached state according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view showing an embodiment of the present invention.

FIG. 3 is a front view seen from the front side.

FIG. 4 is a rear view seen from the back side.

FIG. 5 is a left side view.

FIG. 6 is a plan view seen from the base end side.

FIG. 7 is a bottom view seen from the tip end side.

FIG. 8 is an exploded perspective view of a mounting mode.

9 is a cross-sectional view taken along the section line IX-IX in FIG.

FIG. 10 is a perspective view of a positioning protrusion.

FIG. 11 is a perspective view of another embodiment of the mudguard of FIG.

FIG. 12 is a perspective view showing a conventional mudguard.

[Explanation of symbols]

 1 main body 3 tyre 4 steady rest 5 stay retainer 11,31 throat guard 12,32 contact part 13,33 buffer part

Claims (3)

[Scope of utility model registration request] 1. A guard attached to the outside of the end of the mudguard body by a fixing means, the end being the same as or slightly extending from the end of the mudguard body,
This guard has a contact portion that is in intimate contact along the curvature of the surface of the main body of the mudguard, and a buffer portion that is integrally formed with the contact portion and that projects outwardly. . 2. As a fixing means, a screw mounting hole penetrating the base end of the mudguard guard and a protrusion formed on the rear surface of the tip of the mudguard guard are formed on the mudguard body. 2. The guard according to claim 1, further comprising a positioning protrusion that is engaged with the portion insertion hole and is prevented from coming off. 3. The mudguard as claimed in claim 1, wherein a screw mounting hole and a male screw member insertion hole are provided at the base end and the tip of the mudguard as fixing means.