JPS60124501A - Wheel - Google Patents

Abstract

PURPOSE:To secure such a wheel as being easily modifiable in design, by welding a spoke, which is bent in an almost U-shaped form made up of a rodlike member and offset at both ends, to a hub and a rim altogether. CONSTITUTION:In case of a wheel 1 for a two-wheeled vehicle of a motor scooter and so on, a sheet metal-make hub 3 is welded to a sleeve 8 being rotatably supported on an axle via a bearing assembly, while an interval between this sleeve 8 and the hub 3 is reinforced with a sheet metal-make stiffened plate 9. A rime 4 is locked to this hub 3 via three spokes 5 attaching a tire 6 to the rim 4, thus the wheel is constituted of this formation. In this case, each of these spokes 5 is made up of a steel rod being bent in an almost U-shaped form and each of legs 10 and 10 being bent and formed at both sides of the spoke and offset with each other in an axle direction is welded to the hub 3, while a bent top part 11 of the spoke 5 is welded to the rim 4.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to wheels for motorcycles and the like.

[Technical background of the invention and its problems]

BACKGROUND ART Wheels for motorcycles and the like are usually constructed by placing separate spokes or discs between a hub and a rim, or by integrally molding a hub, a rim, and a disc.

If you want to change the wheel design of an integrally molded product, you will need to change the mold or molding process, which increases manufacturing costs.

Conventionally, in cases where separate spokes or discs are installed between the hub and the rim, the spokes or discs are connected to the hub and the rim by screws, rivets, or by attaching them to the hub and rim. A structure was adopted in which a stop was formed and a spoke or disk was engaged with the stop.

However, with any of these connection structures, the screwing position, rivet position, or locking position with respect to the hub or rim is fixed, so the number of spokes and the shape of the spokes or discs can be changed to create a design. If you want to change it, you will need to process the hub and rim side.
This increases costs. Therefore, there was a problem in that the degree of freedom in design changes was small.

[Purpose of the invention]

The present invention was made based on the above circumstances, and aims to provide a wheel whose design can be easily changed without changing the hub or rim, and which therefore increases the degree of freedom in design changes without causing excess weight. shall be.

[Summary of the invention]

In the present invention, a rod-shaped member is bent into a substantially U-shape, the bent ends are offset from each other to form spokes, both ends of a plurality of spokes are welded to either a hub or a rim, and the bent tops are is welded to the other of the hub or rim.

[Embodiments of the invention]

The present invention will be explained below based on the drawings.

Figures 1 to 3 relate to the first embodiment of the present invention.
The figure shows a scooter-type motorcycle.

The present invention is applied to the front wheel 1 and the rear wheel 2, and the present invention will be explained in detail using the front wheel 1.

In Figures 2 and 3, 3 is the hub, 4 is the rim, and 5.
... indicates a spoke, 6 indicates a tire, and 7 indicates a tube.

The hub 3 is made of sheet metal and is welded to the sleeve 8.

Although not shown, the sleeve 8 is rotatably supported on the axle via a bearing. Note that 9 is a reinforcing plate made of sheet metal that is welded across the hub 3 and sleeve 8. The rim 4 is also made of sheet metal.

The spokes 5 are made of steel rods and are bent into a substantially U-shape as shown in FIG. Welding legs 10.degree. 10 are bent at both bent ends of the spokes 5. These legs 10.10 are evenly offset from one another in the axle direction, as shown in FIG. These legs10.
10 is welded to the hub 3. Further, the bent top portion 1 of the Sugeek 5 is welded to the rim 4.

Next, a second embodiment shown in FIGS. 4 and 5 will be described.

The structures of f3 and rim 4 are exactly the same as those of the first embodiment, except that the spokes 40 are different from those of the first embodiment. That is, spoke 40.
. . is a steel bar bent into a substantially U-shape, and the welding legs 41.41 at both ends of the bar are evenly offset from each other. In this example, the welding legs 41.41 are welded to the rim 4. At the same time, the bent top portion 42 is welded to the hub 3.

As can be seen by comparing the first and second embodiments, according to the present invention, the design of the wheel can be changed by simply changing the spokes 5 and 40 without changing the hub 3 and the rim 4. be able to. That is, in the first embodiment, as shown in FIG.
1 is welded to the rim 4. On the other hand, in the second embodiment, S? - The welding legs 41 and 41 at both ends of the rib 40 are welded to the rim 4, and the bent top portion 42 is welded to the frame 3.

Further, while three spokes 5 are used in the first embodiment, four spokes 40 are used in the second embodiment.

In this way, the design of the wheel can be changed simply by changing the mounting position of the spokes and the number of spokes used. S-r? - It is easy to process because it only requires bending and forming a steel bar. In addition, since the spokes are connected to the hub 3 and rim 4 by welding, there is no need to determine in advance the connection points to the hub 3 and rim 4, such as screwed parts, riveted parts, or retaining parts. . Therefore, the design of the wheel can be changed at low cost without requiring changes to the knob 3 and rim 4.

The purpose of offsetting the legs at both ends of the spoke is to increase lateral rigidity. In this case, the two end legs are not limited to being offset equally from each other, but only one leg may be offset in one direction.

Furthermore, the spokes of the present invention are not limited to the shapes shown in the first and second embodiments, but are particularly U-shaped as shown in Nos. 6 (incl.) to D). Letter-shaped 62. Curved U-shaped 63. It may also be half-U-shaped, and these shapes will be referred to as substantially U-shaped.

〔Effect of the invention〕

As described above, according to the present invention, spokes made of rod-shaped members bent into a substantially U-shape and having both ends offset are welded to a hub and a rim. ? Changing the shape of the wheel requires special changes to the hub and rim, so the design of the wheel can be changed easily and inexpensively. This makes it possible to greatly increase the degree of freedom in design by selecting the mounting orientation, number of spokes, and shape of the spokes.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a side view of a motorcycle, FIG. 2 is an enlarged side view of its front wheel, and FIG. -mH is a cross-sectional view along the line. 4 and 5 show a second embodiment of the present invention, FIG. 4 is a side view, FIG. 5 is a sectional view taken along the line V-■ in FIG. 2A and 2B are side views showing other shapes of the spokes, respectively. 1...Front wheel, 2...Rear wheel, 3...Hub, 4...
Rim, s, 4o, 6i, e2.・63.64...Spoke, 10.41...-Welding leg, 1 '1, 42.
...Folded top. Figure 4 Pv Figure 5 (A) (D) Figure 6

Claims (1)

[Claims] A rod-shaped member is bent into a substantially U-shape, and the bent ends are offset from each other to form spokes, thereby forming a plurality of spokes. - A wheel characterized in that both ends of the rib are welded to either a hub or a rim, and a bent top portion is welded to the other of the hub or rim.