JP2003072301A - Rim for bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rim for a bicycle excellent in design and easy to mount another member on it. SOLUTION: The rim 22 is a ring member having a roughly V shaped tubular cross-section and is furnished with a tire installing part 22a, a plurality of member installing parts 22b and a plurality of spoke installing parts 22c. The member installing parts 22b are parts formed with intervals in the circumferential direction on a side surface of the rim 22 and extended to the inner peripheral side more than other parts and on which reflectors 24 are installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle rim for mounting a bicycle tire.

[0002]

2. Description of the Related Art Bicycle rims on which spokes are mounted are
Tires are mounted on the outer peripheral surface, and spoke holes for locking the spokes are formed on the side surface or the bottom surface. This kind of rim usually has a substantially V-shaped or U-shaped cross section, and the cross section is the same in every part in the rotational direction.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned conventional rim,
Since the cross-sectional shape is the same in any part in the rotation direction, it is difficult to make a difference in design. Therefore, in order to emphasize the difference in design, it is conceivable to attach another member such as a seal to the side surface. However, it is difficult to attach a member such as a seal to the side surface of the rim because the shoe of the brake usually comes into contact with the side surface of the rim.

An object of the present invention is to provide a bicycle rim,
It is to be excellent in design and to easily attach other members.

[0005]

A bicycle rim according to claim 1 is a rim for mounting a tire of a bicycle, comprising a tire mounting portion, a plurality of member mounting portions, and a plurality of spoke mounting portions. It has and. The tire mounting portion is formed on the outer peripheral surface and is for mounting a tire. The plurality of member mounting portions are formed so as to bulge toward the inner peripheral side of the plurality of other portions at intervals on the side surface in the circumferential direction. The plurality of spoke mounting portions are arranged side by side with the member mounting portion and are for locking the spokes.

In this bicycle rim, a member mounting portion that expands toward the inner peripheral side is formed on the side surface. When such a member mounting portion is formed, the shape of the side surface changes, and it becomes easy to emphasize the difference in design. Also, even if a member is attached to that portion, it is unlikely that the brake shoe will be in the way. Therefore, the design is excellent and other members can be easily attached. A bicycle rim according to a second aspect of the present invention is the bicycle rim according to the first aspect, wherein a reflector is attached to the member attaching portion. In this case, since the light is reflected by the reflection plate, it is possible to improve both the visibility from the other party at night and the design.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION (1) Structure In FIG. 1, a bicycle adopting an embodiment of the present invention is equipped with a frame 1 forming a skeleton of a vehicle body. The frame 1 includes a frame body 2 having a front triangle and a frame body 2
And a front fork 3 rotatably supported around a diagonal vertical axis. Further, the bicycle has a handle portion 4 connected to a front fork 3 and a frame body 2
A drive unit 5 that is attached to the lower part of the vehicle to convert the pedaling force into a drive force, and a front wheel 6 that is attached to the lower end of the front fork 3.
A rear wheel 7 attached to the rear portion of the frame body 2 and front and rear wheel brake devices (not shown).

The front wheel 6 will be described with reference to FIGS. Since the rear wheel 7 has the same structure as the front wheel 6, the description thereof will be omitted. The front wheel 6 includes a hub 20, a plurality of (16 in the present embodiment) spokes 21 extending from the hub 20 in the tire outer peripheral direction, and a rim 22. A tire 23 is attached to the outer periphery of the rim 22.

The hub 20 is a member fixed to the axle of the front wheel 6, and is used to lock the inner ends of the spokes 21.
It is provided with a pair of star-shaped flanges 20a formed corresponding to both ends in the axle direction. The spokes 21 are linear wire members, and the inner ends of the spokes 21 are engaged with the pair of flanges 20a of the hub 20, and the spoke mounting portions 22c of the rim 22.
And an outer end portion 21a that is locked to. As shown in FIG. 5, the outer end 21a is bent in the side direction of the rim 22 and has a dish-shaped head.

As shown in FIGS. 2, 4 and 5, the rim 2
Reference numeral 2 is an annular member having a substantially V-shaped tube cross section, and includes a tire mounting portion 22a, a plurality of member mounting portions 22b, and a plurality of spoke mounting portions 22c. Tire mounting part 2
2a is formed on the outer peripheral surface of the rim 22, and the tire 2
The inner peripheral surface of 3 is fixed.

The member mounting portion 22b is a portion which is formed on the side surface of the rim 22 at intervals in the circumferential direction and inflates toward the inner peripheral side with respect to the other portions. There is. Specifically, four member mounting portions 22b are formed on the circumference of the rim 22 at equal intervals, and each member mounting portion 22b is formed.
Ellipse-shaped depressions are further formed on both side surfaces of the.
An elliptical reflection plate 24 is adhered to each recess.

The spoke mounting portion 22c is a member mounting portion 22c.
It is arranged side by side with b and locks the spokes 21. Specifically, the spoke mounting portion 22c is the member mounting portion 2
The outer end portions 2 of the spokes 21 are a plurality of (sixteen in the present embodiment) spoke holes formed at both ends in the circumferential direction of 2b.
The head of 1a is fitted and locked in the spoke hole.

(2) Features The embodiment described above has the following features. In the rim 22 of the present embodiment, a member mounting portion 22b that expands toward the inner peripheral side is formed on the side surface. Since such a member mounting portion 22b is formed, there is a feature that the shape of the side surface is changed and the difference in design is easily emphasized.

Further, since another member is mounted in the recess formed in the member mounting portion 22b, it is less likely to interfere with the brake shoe. Therefore, there is a feature that the design is excellent and other members can be easily attached. Further, since the reflecting plate 24 is attached to the member attaching portion 22b, it is possible to achieve both improvement in visibility from the opponent at night and improvement in design.

(3) Other Embodiments One embodiment of the present invention has been described above, but the specific configuration is not limited to this embodiment, and can be modified within the scope of the invention. . For example, the number of member mounting portions and the number of spokes formed on the rim are not limited to those in the above embodiment.

A nipple may be used to lock the outer ends of the spokes to the rim.

[0017]

As described above, the bicycle rim according to the present invention is excellent in design and can be easily attached with other members such as a reflector.

[Brief description of drawings]

FIG. 1 is a side view of a bicycle in which an embodiment of the present invention is adopted.

FIG. 2 is a side view of a wheel that employs an embodiment of the present invention.

FIG. 3 is a partially enlarged perspective view of a wheel showing the vicinity of a reflector mounting portion of a rim to which an embodiment of the present invention is adopted.

FIG. 4 is a partial enlarged cross-sectional view of the wheel showing a reflector mounting portion, which is a cross-sectional view taken along the line AA of FIG. 3;

5 is a partial enlarged cross-sectional view of the wheel showing a spoke attachment portion, which is a cross-sectional view taken along the line BB of FIG.

[Explanation of symbols]

21 spokes 21a outer end 22 rim 22a Tire mounting section 22b member mounting part 22c Spoke attachment part 23 tires 24 Reflector

Claims (2)

[Claims] 1. A bicycle rim connected to a hub via spokes for mounting a bicycle tire, comprising a tire mounting portion formed on an outer peripheral surface for mounting the tire, and a circumferential direction on a side surface. A plurality of member mounting portions formed inflated to the inner peripheral side from a plurality of other portions at intervals, and a spoke mounting portion arranged side by side with the member mounting portion for locking the spokes, Bicycle rim with 2. The bicycle rim according to claim 1, wherein a reflector is attached to the member attaching portion.