JP3245383B2 - Balancing weight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a balancing weight attached to a rim of a wheel for balancing a tire of an automobile, and more particularly, to a structure in which lead which causes environmental pollution 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. 2, the clip 4 is configured to sandwich a rim 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, 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 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]

The balancing weight according to the present invention forms a cut-and-raised piece 21 cut and raised in a U-shape in the middle of an elongated elastic steel plate.
Clip 2 formed by bending 23 to the opposite side to form an S-shape
And a bar-shaped iron weight 1 having a thin central portion 11 and thick ends 12, and the narrow central portion 11 of the bar-shaped iron weight 1.
Are fitted into the bent portion of the clip 2 from which the cut-and-raised piece 21 protrudes, and are combined.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in an assembly drawing of FIG. 1, a balancing weight according to the present invention has a cut-and-raised piece 21 formed by cutting into a U-shape in the middle of an elongated elastic steel plate.
And a clip 2 formed by bending both ends 22 and 23 to opposite sides to form an S-shape, a thin central portion 11 and thick end portions
And a bar-shaped iron weight 1 having twelve.

The length of the narrow central portion 11 of the bar-shaped iron weight 1 is a length corresponding to the width of the clip 2, and the narrow central portion 11 is pushed in against the cut-and-raised piece 21 of the clip 2. When,
Since the clip 2 has elasticity, the end portion 22 of the clip 2 is opened at the pushed center portion 11 and can be assembled as shown in the perspective view of FIG. Once assembled, the clip 21 is cut and raised to form a piece 21.
The weight 1 does not come off.

The rod-shaped iron weight 1 is forged from a mild steel or hard steel wire rod, and the thickness and length of the thin central portion 11 are the same regardless of the weight. By changing the thickness and length of the portion 12, the weight of the weight 1 can be adjusted arbitrarily and various types of weights having different weights can be manufactured.

Therefore, balancing weights having different weights
Even if it is a weight, by preparing one kind of clip 2, it can be combined with the weights 1 having different weights in common. This combination need not be performed in advance, and the weight 1 having a desired weight can be selected and combined with the clip 2 immediately before the balancing weight is attached to the rim 3 of the wheel.

When the balancing weights combined in this way are mounted on the rim of the wheel, FIG.
As shown in the cross-sectional view, the rim 3 is sandwiched by the ends 23 of the clip 2 and is fixed by hammering.

(Other Embodiment) As shown in a front view (a) of FIG. 7, when a conventional balancing weight is attached to a rim 3 of a wheel, the rim 3 is in an arc shape, whereas Since the inner surface of the rim 4 is linear, the force acting on the rim 3 is indicated by three arrows. In particular, the clip 4 is unstable due to the force pinching only at the central portion.

Therefore, as shown in the perspective view of FIG. 4, cut-and-raised pieces 21 and 25 formed by cutting into a U-shape are formed as the clips 2 on the front and back in the middle of an elongated steel plate having elasticity. A clip 2 is used in which both ends are bent in opposite directions to form an S-shape, and the ends 23a and 23b to be driven into the rim 3 are separated into two. The thin central portion 11 of the rod-shaped weight 1 is pushed in from the end 22 of the clip 2 and assembled.

When the balancing weights thus assembled are mounted on the rim 3 of the wheel, as shown in the cross-sectional view of FIG. 5, the two ends 23a and 23b of the clip 2 make the outside of the rim 3 two places. And the inside of the rim 3 is sandwiched between the cut-and-raised pieces 25, and can be firmly fixed.

[0018]

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. 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 an assembly view of a balancing weight according to the present invention.

FIG. 2 is a perspective view showing a state where the balancing weight of the present invention is assembled.

FIG. 3 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. 4 is a perspective view showing another embodiment of the clip used in the balancing weight of the present invention;

FIG. 5 illustrates a balancing method using the clip shown in FIG. 4;
Sectional view showing a state where the weight is attached to the rim of the 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]

 1 Iron weight 2 Clip 3 Wheel rim 22, 23 End 21, 25 Cut and raised piece

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-10-220532 (JP, A) JP-A-8-61433 (JP, A) Fully open 1981-171302 (JP, U) Really open 48- 22301 (JP, U) JP-A 52-45901 (JP, U) JP-A 62-7701 (JP, U) JP-A 51-41801 (JP, U) Utility model registration 3046046 (JP, U) Showa 45-3921 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60B 13/00 F16F 15/32

Claims (1)

(57) [Claims] 1. An S-shaped clip formed by cutting and raising a U-shaped piece in the middle of an elongated elastic steel plate, bending both ends to opposite sides, and forming a thin center. And a bar-shaped iron weight having thick end portions, wherein the thin central portion of the bar-shaped iron weight is fitted and combined with a bent portion from which the cut-and-raised piece of the clip projects. Balancing weight.