JP2001248691A - Balancing weight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a balancing weight for an automobile tire that uses no lead for causing environmental pollution. SOLUTION: The balancing weight comprises a clip 2 made of an elastic elongate steel plate whose rough middle has a raised tongue 22 struck out along a U-shaped cut and whose ends 21 and 24 are both bent to the same side as the raised tongue 22, and a bar-shaped iron weight 1 having a step 11 of a length roughly the same as the width of the clip 2 and grooves 12 on both longitudinal sides. For assembly, an edge 23 of the raised tongue 22 and an edge 25 of one end 24 of the clip 2 are engaged with the grooves 12 of the bar-shaped iron weight 1.

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 the plate, has elasticity, and has two holes 41 buried with lead so that the clip 4 does not come out of the lead lump 5. Further, a hole 42 is provided for inserting and removing the tip of the driver.

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]

According to the balancing weight of the present invention, a cut-and-raised piece 22 formed by cutting into a U-shape is formed in the middle of an elongated elastic steel sheet, and both ends 21, 24 of the steel sheet are formed. And a bar 2 having a stepped portion 11 having a length substantially equal to the width of the clip 2 and having grooves 12 formed on both sides in the longitudinal direction. The tip 1 of the cut-and-raised piece 22 of the clip 2 and the tip 25 of one end 24 of the clip 2 are connected to the groove 12 of the rod-shaped iron weight 1.
And 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.

A rod-shaped iron weight 1 has a clip 2
Step 11 having the same length as the width of the
12 is formed.

The clip 2 forms a cut-and-raised piece 22 formed by cutting into a U-shape in the middle of a long and thin elastic steel sheet, and the both ends 21 and 24 of the steel sheet are the same as the cut-and-raised piece 22. Side, the tip of the cut-and-raised piece 22 and the cut-and-raised piece 22
Bends 23 and 25 are formed at the distal end of the end 24 of the steel plate opposite to the above to engage with the groove 12 of the iron weight 1.

When the step 11 of the bar-shaped iron weight 1 is turned downward and the center of the iron weight 1 is pushed between the cut-and-raised piece 22 and the end 24 of the clip 2, the clip 2 has elasticity. As shown in the perspective view of FIG. 3 and the side view of FIG. 4, the gap between the cut-and-raised piece 22 and the end 24 of the clip 2 is opened at the center of the pushed iron weight 1. Can be assembled.

When assembling the iron weight 1 to the clip 2, outwardly open bent portions 23 and 25 are formed at the distal end of the cut-and-raised piece 22 and the distal end of the end 24 of the clip 2. And the assembling work can be performed smoothly.

Thus, the iron weight 1 is connected to the clip 2
Once assembled, the bent part 23 of the end 24 of the cut and raised piece 22,
25 engages the groove 12 of the iron weight 1 so that the iron weight 1 does not come off the clip 2.

The bar-shaped iron weight 1 is obtained by forging a mild steel or hard steel wire rod. By changing the length of the part, the weight of the weight 1 can be adjusted arbitrarily, and various types of weights having different weights can be manufactured.

Therefore, balancing weights with 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 constructed is attached to the rim of the wheel, as shown in the sectional view of FIG. 6, the end 21 of the clip 2 and the iron weight 1 and the cut-and-raised piece 22 are connected to each other. It is fixed by hammering in so that the rim 3 is sandwiched between them.

[0019]

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 disposed of, it does not cause environmental pollution 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.

[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 12 Groove 21 and 24 End 22 Cut and raised piece 23 and 25 Bent

Claims (1)

[Claims] 1. A clip formed by cutting and raising a U-shape in the middle of an elongated elastic steel sheet, and bending both ends of the steel sheet to the same side as the cut and raised piece. A rod-shaped iron weight having a step portion having a length substantially equal to the width of the clip and having grooves formed on both sides in the longitudinal direction; and a tip and one end of the cut and raised piece of the clip A balancing weight, wherein a tip end of the portion is engaged with the groove of the bar-shaped iron weight and assembled.