JP2004092685A - Balance weight - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a balance weight causing no environmental pollution even if the balance weight is disposed of. <P>SOLUTION: The balance weight comprises an S-shaped clip 2 made of an elastic elongate steel plate whose rough middle has a raised tongue 21 struck out along a U-shaped cut and whose both ends are bent to the opposite side, and a weight 1 bent in a circular arc shape in a longitudinal direction to match the shape of a rim 3 of a wheel to be installed, whose cross section is formed in the shape of J, and having a step 11 at a central part, which the clip 2 is fixedly fitted in. The step 11 of the weight 1 is fitted in and combined with a bent part where the raised tongue 21 of the clip 2 is projected. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balance weight attached to a rim of a wheel in order to balance a tire of an automobile, and particularly to a structure in which lead which is a substance causing environmental pollution is not used.
[0002]
[Prior art]
As shown in a perspective view (A) and a side view (B) of FIG. 8, a conventional balance weight is composed of a clip 5 for sandwiching a rim and a lead mass 6 of a predetermined weight serving as a weight. The clip 5 is formed by punching a steel plate and then bending the same. The clip 5 has elasticity, and has two holes 51 buried with lead so that the clip 5 does not come out of the lead lump 6. Further, a hole 52 for inserting the tip of the driver and taking it out is provided.
[0003]
Then, as shown in the front view (A) and the cross-sectional view (B) of FIG. 9, the clip 5 is fixed by hitting the clip 5 with a hammer while attaching the balance weight to the rim 3 of the wheel. In such conventional balance weights, lead that is inexpensive, has a large specific gravity, has a low melting point, and has good workability is used.
[0004]
[Problems to be solved by the invention]
However, with the increase in the number of discarded automobiles, particularly the number of discarded tires and wheels, the amount of balance weights attached to wheels is also increasing.
[0005]
When discarding wheels made of iron or aluminum, the tires are removed, but the balance weights are discarded or recycled without removal.
[0006]
When recycling iron or aluminum wheels with balance weights, the lead in the balance weights becomes an impurity.
[0007]
In addition, when rainwater is splashed on the disposed balance weight, lead exceeding the standard value may be dissolved and pollute the environment.
[0008]
Therefore, the present invention has been conceived to solve such a problem, and has been conceived to provide a balance weight that does not pollute the environment even if disposed.
[0009]
[Means for Solving the Problems]
The balance weight of the present invention is formed in the middle of an elongated elastic steel plate by forming a cut and raised piece formed by cutting into a U-shape and bending both ends of the steel plate to opposite sides to form an S-shape. To the shape of the rim of the wheel to be mounted and the clip bent in the shape of an arc in the longitudinal direction, forming a J-shaped cross-section, and forming a step to fit the clip into the center and fix it And a step portion of the weight is fitted into a bent portion of the clip from which the cut-and-raised piece protrudes, and is combined.
[0010]
As the weight, a molded product of a metal other than lead, such as iron or zinc, or a plastic molded product into which metal powder is kneaded is used.
[0011]
As a balance weight, a double-sided adhesive that is curved in the shape of a circular arc in the longitudinal direction according to the shape of the rim of the wheel to be mounted, and has a J-shaped cross section and a cushion layer on the side that contacts the rim of the weight. The weight can be used alone by constituting by attaching a tape.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The balance weight according to the present invention includes a weight 1 made of a metal having a relatively large specific gravity, such as iron or zinc, other than lead, as shown in the perspective view of FIG. 1, and a clip 2 shown in the perspective view of FIG. .
[0013]
As shown in the perspective view of FIG. 1, the weight 1 is curved in an arc shape in the longitudinal direction according to the shape of the rim 3 so as to be in close contact with the rim 3 of the wheel. The corner 12 is rounded so as to be in close contact with the rim 3. A step 11 for fitting the clip 2 is formed in the center. A recess 13 for fitting and fixing the bent portion 22 at the tip of the clip 2 is formed on the front side of the step portion 11.
[0014]
As shown in the perspective view of FIG. 2, the clip 2 is formed by cutting and raising a U-shaped cut and raised piece 21 in the middle of an elongated elastic steel plate, and bending one end of the steel plate round. The part 22 is formed. Then, both ends 23 and 24 of the steel plate are bent in opposite directions so that the protruding surface of the bent portion 22 faces inward, so as to form an S-shape.
[0015]
When the weight 1 and the clip 2 are combined, the protrusions of the bent portion 22 of the clip 2 are aligned with the recesses 13 of the step portion 11 of the weight 1, and the cut-and-raised piece is turned while turning the bent portion 22 as a fulcrum. When the weight 1 is pushed in against the weight 21, the end 2 of the clip 2 is opened by the step 11 of the pushed weight 1 because the clip 2 has elasticity, and the perspective view of FIG. Can be combined as shown in FIG.
[0016]
At the time of this combination, the depression 13 is formed in the step portion 11 of the weight 1 and the bent portion 22 which is bent round at the portion of the clip 2 that contacts the depression 13 of the weight 1, so that the clip 2 can be easily pushed in. it can.
[0017]
When the step 11 of the weight 1 is pushed into the clip 2, as shown in the cross-sectional view of FIG. 4, the cut-and-raised piece 21 comes into contact with and engages with the surface of the step 11. They do not come apart when combined.
[0018]
The weight 1 is forged from a wire rod of mild steel or hard steel, and the width and the shape of the step portion 11 are the same regardless of the magnitude of the weight. By changing the length of the weight 1, the weight 1 is reduced. A variety of different things can be manufactured.
[0019]
Therefore, even if the balance weights have different weights, the weights 1 having different weights can be commonly combined by preparing one kind of clip 2. This combination does not need to be performed in advance, and the iron weight 1 having a predetermined weight may be selected and combined with the clip 2 immediately before the balance weight is attached to the rim 3 of the wheel.
[0020]
Generally, balance weights having different weights at intervals of 2.5 g are used as balance weights to be attached to the wheels of an automobile. Therefore, the weight of the clip 2 is set to 2.5 g, the weight of the weight is also set to at least 2.5 g, and various kinds of clips may be prepared at 2.5 g intervals.
[0021]
When the balance weight thus configured is mounted on the rim 3 of the wheel, as shown in the sectional view of FIG. 4 and the perspective view of FIG. It is fixed by hammering in so that the rim 3 is interposed therebetween.
[0022]
(Other embodiments)
As shown in the cross-sectional view of FIG. 6, a slope 14 is formed at the corner of the step 11 of the weight 1 so that the cut and raised piece 21 of the clip 2 abuts the step 11 of the weight 1 substantially at a right angle. Then, the cut-and-raised piece 21 may be supported by the slope 14.
[0023]
In the above embodiment, the metal weight 1 such as iron or zinc is used. Instead of the metal weight, a plastic weight formed by mixing a metal powder having a large specific gravity is used. Is also good.
[0024]
The weight 1 configured as described above can be attached alone to the rim 3 of the wheel. As shown in the perspective view of FIG. 7, the weight 1 can be attached and fixed to the rim 3 using a double-sided adhesive tape 4 having a cushion layer. The weight of the balance weight combining the 2.5g clip 2 and the lightest 2.5g iron weight 1 is 5g, but when balancing the 2.5g, do not use the clip 2. In this case, the weight 1 of 2.5 g can be attached to the rim 3 of the wheel using the double-sided adhesive tape 4. A weight of 5 g or more can be similarly attached.
[0025]
Thus, in the usage mode in which the weight 1 is attached to the rim 3 of the wheel by itself, it is not necessary to provide the step portion 11 to be fitted into the clip 2, but there is no problem in using the step portion 11.
[0026]
【The invention's effect】
As is clear from the description based on the above embodiment, according to the balance weight of the present invention, since the material used is a metal or plastic other than lead, even if it is disposed of, the environment is polluted like lead. I will not do it. Further, even if the balance weight using the iron weight is recycled as an iron material while being attached to an iron wheel, it does not become an impurity to iron. This balance weight can also be applied to aluminum wheels.
[Brief description of the drawings]
FIG. 1 is a perspective view (A) of a weight used for a balance weight according to the present invention as viewed from the front side, and FIG.
FIG. 2 is a perspective view of a clip used for a balance weight according to the present invention;
FIG. 3 is a perspective view showing a balance weight in a state where a weight and a clip are combined,
FIG. 4 is a sectional view showing a state where the balance weight of the present invention is mounted on a rim of a wheel.
FIG. 5 is a perspective view showing a state where the balance weight of the present invention is attached to a rim of a wheel.
FIG. 6 is a sectional view showing a state where a balance weight according to another embodiment of the present invention is attached to a rim of a wheel;
FIG. 7 is a perspective view showing a state in which the weight of the balance weight according to the present invention is attached to a rim of a wheel.
FIG. 8 is a perspective view (A) and a side view (B) showing a conventional balance weight,
FIG. 9 is a front view (A) and a cross-sectional view (B) showing a state in which a conventional balance weight is attached to a rim of a wheel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Weight 2 Clip 3 Wheel rim 4 Double-sided adhesive tape 11 Step 12 Roundness of corner 13 Depression 21 Cut and raised piece 22 Bend 23, 24 End

Claims (4)

In the middle of a steel plate having an elongated elasticity, a cut-and-raised piece formed by cutting into a U-shape is formed, and both ends of the steel plate are bent to opposite sides to be bent into an S-shape,
According to the shape of the rim of the wheel to be mounted, it is curved in the shape of an arc in the longitudinal direction, the cross section is formed in a J shape, and the weight is formed with a step portion which is fitted and fixed in the center of the clip,
A balance weight, wherein the step of the weight is fitted to and combined with a bent portion of the clip from which the cut-and-raised piece protrudes. The balance weight according to claim 1, wherein the weight is a molded product of a metal other than lead, such as iron or zinc. The balance weight according to claim 1, wherein the weight is a plastic molded product into which metal powder is kneaded. According to the shape of the rim of the wheel to be attached, a double-sided pressure-sensitive adhesive tape that is curved in the shape of a circular arc in the longitudinal direction and has a J-shaped cross section and has a cushion layer on the side that contacts the rim of the weight is attached. Balance weight characterized by that.

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