JP2001065639A - Wheel balance weight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain easy mounting of a wheel balance weight having a roughly band-shaped weight made of iron-based metal. SOLUTION: This wheel balance weight involves a weight 1 formed out of iron-base alloy into a roughly band shape and an adhesive seal part 2 which is integrally jointed to the lower surface of the weight 1 and bonds the weight 1 to the inner periphery surface of a wheel. The weight 1 has at least one groove part 11 extending in such a direction as matches the axial direction of the wheel. The wheel balance weight is formed with a groove part on the front surface side of a weight formed out of iron-base alloy, thus it is possible to improve ease of mounting on a wheel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel balance weight mounted on a tire of an automobile.

[0002]

2. Description of the Related Art In a wheel assembly state in which a tire of an automobile or the like is incorporated in a wheel, if the imbalance in the circumferential direction around the rotation axis and in the rotation axis direction of the wheel assembly becomes large, vibration and noise may be generated during running. Problems will occur. This vibration and noise is due to wheel imbalance,
A balance weight is attached to the wheel to counteract this imbalance.

As one of such wheel balance weights, there is a wheel balance weight in which a weight formed in a substantially band-like flat plate shape is attached to a wheel by an adhesive seal. The wheel balance weight is used by attaching a substantially belt-shaped weight to the inner peripheral surface of the rim portion of the wheel by bonding.

For this reason, when the wheel balance weight is actually mounted on the wheel, it is necessary that the weight be curved along the inner peripheral surface of the rim of the wheel. That is, when the wheel balance weight is mounted on the wheel, the weight is curved along the inner peripheral surface of the rim of the wheel.

[0005] Before being mounted on a wheel, the weight is curved when the wheel is mounted on the wheel. Therefore, a conventional wheel balance weight is made of lead, which is a soft material. The weight formed of lead can be easily deformed by human power.

[0006] However, it is known that lead disposes a large burden on the environment when discarded. For this reason,
As a material of the weight, an iron-based alloy having a small environmental load has been used.

However, due to the hardness of the iron-based alloy itself, the weight formed of the iron-based alloy requires a large force to bend along the inner peripheral surface of the rim of the wheel. That is, a weight made of an iron-based alloy cannot be easily formed by human power into an arc shape following the curved shape of the inner peripheral surface of the wheel due to its high hardness. This indicates that extra work is required to attach the wheel balance weight to the wheel.

There is also a wheel balance weight in which the weight is previously curved along the curved shape of the inner peripheral surface of the rim of the wheel. Even in such a wheel balance weight, there is a problem that the inner peripheral surface of the wheel to be mounted has a curved portion which differs depending on the wheel, so that the wheel balance weight is not easily adapted to the wheel.

Further, as a weight using an iron-based metal, there is a weight formed by connecting a plurality of small weight pieces in a substantially strip shape. In this weight, a small weight piece is connected and made, so a gap is created between the weight pieces, and when attached to the wheel, the gap between the weight pieces collapses, the weight becomes an arc shape, and the weight is curved It is attached to the inner peripheral surface of the rim.

[0010] However, the wheel balance weights connected with the weight pieces need to be handled with care because the weight pieces are separated between the weight pieces or are broken toward the adhesive seal portion during the handling.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and has a wheel balance weight having a substantially band-shaped weight made of an iron-based metal, which can be easily mounted. The task is to provide weights.

[0012]

In order to solve the above-mentioned problems, the present inventors have made the above-mentioned problems by forming a groove on the surface of the weight so that the weight made of an iron-based alloy can easily fit into the curved surface of the wheel. Can be solved.

That is, a wheel balance weight according to the present invention includes a weight made of an iron-based alloy formed in a substantially belt shape, and an adhesive seal portion integrally joined to a lower surface of the weight and bonding the weight to an inner peripheral surface of the wheel. , The weight of the wheel has at least one groove extending on a top surface thereof in a direction coinciding with the axial direction of the wheel. Here, in the wheel balance weight of the present invention, the upper surface of the weight indicates a surface facing the axis of the wheel when mounted on the wheel, and the lower surface of the weight indicates a surface facing the bonding surface of the wheel. .

The wheel balance weight of the present invention has a groove on the surface of the weight so that the thickness of the groove is reduced. The bending stress of the weight at the thin portion is reduced, so that the weight can be easily curved. The thick part of the weight exerts the rigidity of the weight.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A wheel balance weight according to the present invention comprises a weight and an adhesive seal part, and has a groove on the surface of a substantially strip-shaped weight.

The weight is made of a substantially band-shaped iron-based alloy. That is, the weight is formed of an iron-based alloy that has a low environmental load when discarded. The substantially band shape of the weight indicates a shape in which the weight spreads along the bonding surface when the weight is bonded to the inner peripheral surface of the rim of the wheel. The iron-based alloy forming the weight may be any alloy containing iron as a main component, and examples thereof include pure iron, steel, and stainless steel.

The adhesive seal portion is a member that is integrally joined to the lower surface of the weight and adheres the weight to the inner peripheral surface of the wheel. That is, the adhesive seal portion is formed by an adhesive seal formed integrally with the weight.

The weight has at least one groove on its upper surface extending in a direction coinciding with the axial direction of the wheel. Here, the upper surface of the weight indicates a surface facing the rotation axis of the wheel when the wheel balance weight of the present invention is mounted on the wheel. Since this groove is a portion where the thickness in the thickness direction of the weight is thin, its strength is reduced as compared with the portion where the thickness of the weight is thick, so that the weight can be easily curved by this groove. it can. Further, when the weight is curved along the curved shape of the wheel, the weight is curved by filling the space of the groove, so that the weight can be easily curved.

Preferably, the groove has a V-shaped cross section. That is, by making the cross section of the groove into a V-shape, when the wheel balance weight is bent, it curves until the wall surfaces that define the V-shape contact each other,
Prevents further bending.

The weight is preferably in an arc shape along the inner peripheral surface of the wheel. That is, since the wheel balance weight of the present invention is mounted on the inner peripheral surface of the rim of the wheel, if it is curved along the inner peripheral surface of the rim, it can be easily mounted at the time of mounting.

In the wheel balance weight of the present invention, it is preferable that the adhesive seal portion is formed of a double-sided tape having one adhesive surface adhered to the weight. That is, the wheel balance weight of the present invention may be a wheel balance weight in which one adhesive surface of the double-sided adhesive tape is adhered to the lower surface of the weight.

Preferably, the weight has an identification on its surface. If, for example, the weight of the weight is displayed as the identification display, a weight having a desired weight can be easily identified and selected.

The wheel balance weight of the present invention is preferably provided with a surface treatment on the surface of the weight.
By performing the surface treatment on the weight surface, the appearance of the weight can be made clear and the weight can be prevented from being rusted. Such surface treatments include:
Surface treatments such as zinc chromate treatment, silver powder coating, chrome plating, and baking type zinc chromic acid composite coating can be given.

In the wheel balance weight of the present invention, it is preferable that the release paper for protecting the adhesive seal portion has a larger area than the weight. That is, before the wheel balance weight is mounted on the wheel, the adhesive seal portion for bonding to the wheel is protected by being covered with release paper. By making the release paper larger than the weight, the release paper can be easily peeled off, and extra work is not required for mounting the wheel balance weight.

Here, the protruding shape of the release paper is as follows:
Any shape may be used. That is, since the release paper protrudes from the weight, the release paper is easily peeled off, and if the release paper has a protrusion that can be pinched to peel off the release paper, what is the heading shape Is also good. It is preferable that the protrusion protrudes to one side in the width direction of the weight. Specifically, a shape such as a band shape having a protrusion on one side in the width direction of the weight, a tab shape, or the like can be given.

[0026]

The present invention will be described below with reference to examples.

As an example of the present invention, a wheel balance weight was manufactured.

(Embodiment 1) This embodiment is a wheel balance weight shown in FIG. The present embodiment is a wheel balance weight before being mounted on a wheel.

The wheel balance weight of this embodiment is
It is composed of a weight 1 and a double-sided adhesive tape 2.

The weight 1 has a width of 25 mm and a thickness of 2.
This is a weight in which a 4 mm strip-shaped iron plate is curved so as to follow the curved shape of the inner peripheral surface of the wheel. The curved weight 1 has a length of 106.3 mm, and is provided with three grooves 11 for partitioning the surface in the width direction. The groove 11 has an opening having a width of 1.9 mm and a depth of 2.1 m.
It is divided into a V-shape of m.

One adhesive surface of the double-sided adhesive tape 2 is adhered to the entire back surface of the weight 1. Here, as the double-sided adhesive tape 2, a normal double-sided adhesive tape which is also used for a conventional wheel balance weight is used.

The other adhesive surface of the double-sided adhesive tape 2 is protected by being covered with a release paper 3. This release paper 3
Is made of glassine paper having a width of 1.5 mm wider than the weight of 25 mm. The release paper 3 for protecting the adhesive surface of the double-sided adhesive tape 2 protrudes from one width of the weight 1 when the weight 1 is attached to the double-sided adhesive tape 2.

(Installation of wheel balance weight)
The wheel balance weight of the example was actually attached to the wheel according to the following procedure. Here, FIG. 2 shows a state where the wheel is attached to the inner peripheral surface of the wheel.

First, the release paper 3 is peeled off from the wheel balance weight of the embodiment, and the adhesive surface of the double-sided adhesive tape 2 is exposed. Subsequently, by attaching this exposed adhesive surface to a predetermined position on the inner peripheral surface of the rim of the wheel 4,
Installation was performed. At this time, weight 1
By pressing the weight 1 on the rim, the contact portion of the weight 1 and the curved shape of the weight 1 could be conformed.

The wheel balance weight of this embodiment is
When attached to the wheel, the curvature of the weight is more curved than the inner peripheral surface of the wheel. By pressing the weight against the wheel, the curvature of the weight and the curvature of the inner peripheral surface of the rim are adjusted. At this time, the V-shaped groove formed on the front surface side of the weight is pushed out, so that the weight is adapted to the wheel.

As another form of this embodiment, a wheel balance weight having a flat plate-shaped weight was manufactured.

(Embodiment 2) This embodiment is a wheel balance weight shown in FIG. In the wheel balance weight of the present embodiment, the weight 1 is formed in a flat plate shape,
The wheel balance weight is the same as that of the first embodiment except that the release paper 3 forms the tab 31 protruding from the weight.

More specifically, the wheel balance weight according to the present embodiment is composed of a band-shaped iron plate having a width × length × thickness of 25 × 50 × 3 mm, and having a weight 1 having three V-shaped grooves 11 on the surface. And a double-sided adhesive tape 2 in which the back surface side of the weight 1 is adhered to one adhesive surface and the other adhesive surface is covered with a release paper 3. Here, the release paper 3 is formed with a tab 31 partly protruding from the band shape of the weight 1.
The tab 31 is a tab having a width × length of 25 × 1.5 mm provided at one end in the length direction of the band of the weight 1.

The wheel balance weight of this embodiment can be attached to the wheel in the same manner as in the first embodiment.

When the weight is attached to the wheel, the weight is curved into the curved shape of the inner peripheral surface of the rim. However, the wall surfaces defining the V-shaped grooves formed on the surface of the weight are shifted in the direction in which they contact each other. , The weight bends easily. That is, when the weight is pressed against the wheel, the angle of the V-shaped tip of the groove becomes smaller,
The weight bends in the groove.

As the wheel balance weight manufactured in the embodiment of the present invention, a weight made of an iron plate having a high hardness is used, but by forming a groove on the surface of the weight, the weight can be adjusted when the weight is mounted on the wheel. , It can be easily adapted to its curved shape. Therefore, when the wheel balance weight is mounted on the wheel, the wheel balance weight can be easily mounted without applying a great deal of force.

[0042]

The wheel balance weight of the present invention
By forming a groove on the surface side of the weight made of an iron-based alloy, workability is improved when the weight is attached to the wheel.
That is, since the weight is bent in the groove,
It is easy to adapt to the R shape of the wheel. further,
Since the weight is formed in a belt shape, the handling becomes easy.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a wheel balance weight according to a first embodiment.

FIG. 2 is a diagram when a wheel balance weight according to the first embodiment is attached to a rim portion of a wheel.

FIG. 3 is a diagram illustrating a wheel balance weight according to a second embodiment.

[Explanation of symbols]

 Reference Signs List 1 weight 11 groove 2 double-sided adhesive tape 3 release paper 31 tab 4 wheel

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuhiro Makibayashi 3-65, Midorigaoka, Toyota-shi, Aichi Prefecture Inside Daitoyo Kogyo Co., Ltd. (72) Inventor Tomoyuki Kumagaya 3-65, Midorigaoka, Toyota-shi, Aichi Pref. Co., Ltd. (72) Inventor Hiroshi Yamaguchi 36-shi, Tashiro Kashibuchi, Shimoyama-mura, Higashikamo-gun, Aichi F-term in the Shimoyama Plant of Toho Kogyo Co., Ltd. 3J023 EA01 FA10 GA01 GA10

Claims (3)

[Claims] 1. A wheel balance weight having a substantially band-shaped weight made of an iron-based alloy, and an adhesive seal portion integrally joined to a lower surface of the weight and bonding the weight to an inner peripheral surface of the wheel. 3. The wheel balance weight according to claim 1, wherein the weight has at least one groove on an upper surface thereof in a direction coinciding with an axial direction of the wheel. 2. The wheel balance weight according to claim 1, wherein the groove has a V-shaped cross section. 3. The wheel balance weight according to claim 1, wherein the weight has an arc shape along an inner peripheral surface of the wheel.