JP2001248690A - Balancing weight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a balancing weight for an automobile tire that uses no lead as a cause of environmental pollution. SOLUTION: The balancing weight comprises an S-shaped clip 2 made of an elastic elongate steel plate whose rough middle has a raised tongue 22 struck out along a U-shaped cut, whose one end 24 and middle 23 are bent in the same direction and whose other end 21 is curved in the opposite direction from about the root of the raised tongue 22; and a bar-shaped iron weight 1 having a rectangular section, three round corners and a longitudinal step 11 at the other corner. For assembly, one side of the iron weight 1 is supported by the raised tongue 22 and the middle 23 of the clip 2, and the step 11 on the other side of the iron weight 1 is engaged with a bend 25 at the edge of the one end 24 of the clip 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balancing weight mounted on a rim of a wheel for balancing automobile tires, and more particularly, to a structure in which lead that pollutes the environment is not used.

[0002]

2. Description of the Related Art A conventional balancing weight is shown in FIG.
As shown in a perspective view (a) and a side view (b) of FIG. 1, the clip 4 includes a clip 4 for sandwiching a rim of a wheel and a lead mass 5 having a predetermined weight serving as a weight. The clip 4 is formed by punching a steel plate and then bending it. The clip 4 has elasticity, and has two holes 41, 41 buried with lead so that the clip 4 does not come out of the lead lump 5. In addition, a hole 42 for inserting and removing the tip of the driver is provided.

As shown in a front view (a) and a cross-sectional view (b) of FIG. 7, a balancing weight is attached to a rim 3 of a wheel, and a clip 4 is driven into the clip with a hammer and fixed. In such a conventional balancing weight, lead which is inexpensive, has a large specific gravity, has a low melting point, and has good workability is used.

[0004]

However, with the increase in the number of discarded automobiles, especially with the increase in the number of discarded tires and wheels, the amount of balancing weights attached to wheels has been increased. .

[0005] When discarding wheels made of iron or aluminum, the tires are removed, but the balancing weights are discarded without being removed or recycled.

[0006] When recycling wheels with balancing weights, the lead in the balancing weights becomes an impurity.

[0007] Further, when rainwater is applied to the disposed balancing weight, lead exceeding the standard value may leach out and pollute the environment.

Accordingly, the present invention has been conceived in order to solve such a problem, and it is an object of the present invention to provide a balancing weight which does not pollute the environment even when disposed and does not become an impurity when recycled. It was conceived.

[0009]

A balancing weight according to the present invention forms a cut-and-raised piece 22 formed by cutting into a U-shape in the middle of an elongated elastic steel plate, and has one end portion of the steel plate. A clip 2 formed by bending the steel plate 24 and the intermediate part 23 in the same direction, cutting and raising the other end 21 of the steel plate, and bending the steel plate 22 from the vicinity of the base of the piece 22 to the opposite side to form an S-shape. Is a rectangular shape having three rounded corners, and a bar-shaped iron weight 1 having a step 11 formed in one corner in the longitudinal direction, and one side of the bar-shaped iron weight 1 Is supported by the cut-and-raised piece 22 and the intermediate portion 23 of the clip 2, and the step 11 on the other side of the iron weight 1 is engaged with the bent portion 25 at the tip of one end 24 of the clip 2. It is assembled.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A balancing weight according to the present invention includes an iron weight 1 shown in a perspective view of FIG. 1 and a clip 2 shown in perspective views (a) and (b) of FIG. It consists of.

The rod-shaped iron weight 1 has a rectangular cross section, is rounded at three corners, and has a step 11 formed at one corner 11 in the longitudinal direction.

The clip 2 has a cut-and-raised piece 22 formed by cutting into a U-shape in the middle of an elongated elastic steel plate, and bending one end 24 and an intermediate portion 23 of the steel plate in the same direction. ,
Further, the other end 21 of the steel plate is cut and raised, and is bent in a round shape from the vicinity of the base of the piece 22 to the opposite side to form an S-shape.

A bent portion 25 that engages with the step 11 of the iron weight 1 is formed at the tip of one end 24 of the steel plate.

With the surface of the bar-shaped iron weight 1 having no step 11 facing obliquely downward, one side of the weight 1 is cut and raised to fit with the intermediate portion 23 having the piece 22, and the other portion of the iron weight 1 is turned. When the side portion is pushed in, the clip 2 has elasticity, so the cut-and-raised piece 22 and one end portion 24 of the clip 2 are pushed by the pushed iron weight 1.
The gap is opened, and it can be assembled as shown in the perspective view of FIG. 3 and the side view of FIG.

When assembling the iron weight 1 to the clip 2, since the bent portion 25 is formed at the tip of the end 24 of the clip 2, the assembling operation can be performed smoothly.

In this manner, the iron weight 1 is attached to the clip 2
Once assembled, the weight 1 will not come off.

The bar-shaped iron weight 1 is forged from a mild steel or hard steel wire rod, and the cross-sectional shape of the stepped portion 11 is the same irrespective of the size of the weight. By changing the weight, the weight of the weight 1 can be arbitrarily adjusted to produce various weights having different weights.

Therefore, balancing weights having different weights
Even if it is a weight, by preparing one kind of clip 2, it can be assembled in common with the weights 1 having different weights. This assembly does not need to be done in advance,
Immediately before attaching the balancing weight to the rim 3 of the wheel, a weight 1 having a desired weight may be selected and combined with the clip 2.

When the balancing weight thus configured is mounted on the rim of the wheel, the rim 3 is sandwiched between the end 21 and the intermediate portion 23 of the clip 2 as shown in the sectional view of FIG. And fix it with a hammer.

[0020]

As is clear from the description based on the above embodiment, according to the balancing weight of the present invention, since the material used is all iron, even if it is discarded, the environment is polluted like lead. I will not do it. Also, even if it is recycled as an iron material while being attached to an iron wheel, it does not become an impurity for iron. This balancing weight can also be applied to aluminum wheels.

[Brief description of the drawings]

FIG. 1 is a perspective view of an iron weight used for a balancing weight according to the present invention;

FIGS. 2A and 2B are perspective views of a clip used for a balancing weight according to the present invention, as viewed from the opposite direction; FIGS.

FIG. 3 is a perspective view showing a state in which the balancing weight of the present invention is assembled.

FIG. 4 is a side view showing a state where the balancing weight of the present invention is assembled.

FIG. 5 is a sectional view showing a state in which the balancing weight of the present invention is attached to a rim of a wheel.

FIG. 6 is a perspective view (a) and a side view (b) showing a conventional balancing weight;

FIG. 7 is a front view (a) and a sectional view (b) showing a state in which a conventional balancing weight is attached to a wheel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Iron weight 2 Clip 3 Wheel rim 11 Step part 21, 24 End part 22 Cut-out piece 23 Intermediate part 25 Bent part

Claims (1)

[Claims] 1. A cut-and-raised piece formed by cutting into a U-shape in the middle of an elongated elastic steel plate, and bending one end and an intermediate portion of the steel plate in the same direction. A clip formed by cutting and raising the other end of the steel plate and rounding it from the vicinity of the base of the piece to the opposite side to form an S-shape; a rectangular cross-section having three rounded corners; A bar-shaped iron weight having a step in the longitudinal direction at one of the corners, one side of the iron weight being supported by a cut-and-raised piece of the clip and an intermediate portion, and another of the iron weight A balancing weight, wherein a side step is engaged with a tip of one end of the clip to assemble the clip.