JPH11172998A - Sound insulation structure of traveling wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound insulating structure for preventing noise from occurring in rolling of a wheel on a rail in various types of traveling wheels. SOLUTION: An inner wheel ring 7 is fitted on the outer peripheral surface 9 of a traveling wheel main body 6, an outer wheel ring 8 is fitted on the outer peripheral surface of the inner wheel ring 7, and they are overlapped with each other. The outer wheel ring 8 is provided with a rolling outer peripheral surface 25 on a wheel ring main body 20. The inner wheel ring 7 and outer wheel ring 8 are provided, other than the wheel ring main bodies 12 and 20, with vibration damping bodies 19 and 27 between the rolling outer peripheral surface 25 and the outer peripheral surface of the traveling wheel main body 6. The vibration damping bodies 19 and 27 are buried in the wheel ring main bodies 12 and 20, and formed in ring shape along the outer peripheral surface 9 of the traveling wheel main body 6. In the inner wheel ring 7 and outer wheel ring 8, the wheel ring bodies 12 and 20 are formed of a metal and the vibration damping bodies 19 and 27 are formed of a vibration damping resin. By this, the rotating resistance of the traveling wheel 4 can be reduced, and noise liable to occur when the traveling wheel rolls on a rail can be prevented securely from occurring by the vibration damping bodies 19 and 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation structure for preventing noise generated when rolling on rails, for example, on running wheels supported by a partition runner.

[0002]

2. Description of the Related Art In a conventional partition, a panel is suspended from a runner supported by rails. In this runner, running wheels can be supported and roll on the inner surface of the rail.

Conventionally, when a urethane wheel is used as the traveling wheel, the weight of the panel is applied to the traveling wheel, so that the outer peripheral surface of the rolling tends to be flat, and the rotational resistance of the traveling wheel increases.

[0004] Therefore, metal running wheels have to be used. However, noise tends to occur when the running wheels roll on the rails. Therefore, in a conventional rail, a noise damping plate is attached to a track on which a traveling wheel rolls.

[0005]

However, since the noise damping plate must be provided on the entire track of the traveling wheel, the structure of the rail is complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sound insulation structure for preventing noise generated when various running wheels roll on a rail.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a), FIG. 2 (a) and FIG. 3 show a first embodiment shown in FIGS. 1 (a), 2 (a) and 3 and a first embodiment shown in FIG. 1 (b). Example 1, another example 2 of the first embodiment shown in FIG. 4, another example 3 of the first embodiment shown in FIG.
Another example 4 of the first embodiment shown in FIG. 6, another example 5 of the first embodiment shown in FIG. 7, another example 6 of the first embodiment shown in FIG.
The present invention will be described with reference to the reference numerals of (b) and the second embodiment shown in FIG. 9, another example 1 of the second embodiment shown in FIG. 10, and another example 2) of the second embodiment shown in FIG. I do.

The sound insulation structure for a traveling wheel according to the first aspect of the present invention corresponds to the first embodiment and other examples 1 to 6 and the second embodiment and other examples 1 and 2, and is configured as follows. ing.

A wheel ring (7, 8) is fitted on the outer peripheral surface (9) of the traveling wheel body (6). This ring (7,8)
Is a ring body (2) having rolling outer peripheral surfaces (25, 17).
0, 12), the vibration damper (2) is provided between the rolling outer peripheral surface (25, 17) and the outer peripheral surface (9) of the traveling wheel body (6).
7, 19, 30).

A sound insulation structure for a traveling wheel according to the invention of claim 2 corresponds to the first embodiment and the other examples 1, 3, 4, and 6, and is configured as follows. Running wheel body (6)
And a plurality of annular rings (7, 8) which are sequentially fitted from the inside on the rotation center line (C) side to the outside in the radial direction with respect to the outer peripheral surface (9) and overlap each other. Each ring (7, 8)
Of the outer ring (8, 7) is the outer ring body (20, 1).
2) has a rolling outer peripheral surface (25, 17). The predetermined outer ring (7, 8) of the respective outer rings (7, 8) includes the rolling outer peripheral surfaces (25, 17) in addition to the annular body (20, 12).
A vibration damper (27, 19, 30) is provided between the driving wheel body (6) and the outer peripheral surface (9).

The sound insulation structure for a traveling wheel according to the invention of claim 3 corresponds to the first embodiment and the first, third, fourth and sixth examples thereof and is configured as follows. Running wheel body (6)
The inner ring (7) is fitted to the outer peripheral surface (9) of the inner ring (7), and the outer ring (8) is fitted to the outer peripheral surface (17) of the inner ring (7) so that they are overlapped with each other. This outer ring (8)
Has a rolling outer peripheral surface (25) on the ring body (20). The inner ring (7) and the outer ring (8) are provided between the rolling outer peripheral surface (25) and the outer peripheral surface (9) of the traveling wheel main body (6) in addition to the ring main bodies (12, 20). Damping body (27,
19, 30).

The invention according to claim 4 corresponds to the first embodiment and other examples 1 to 6 and the second embodiment and another example 1 thereof, and corresponds to any one of claims 1 to 3. The following configuration is added to the invention.

[0013] The vibration damper (19, 27) is provided with a ring body (1).
2, 20), and is formed in an annular shape along the outer peripheral surface (9) of the traveling wheel body (6). The invention of claim 5 corresponds to another example 6 of the first embodiment and the second embodiment and other examples 1 and 2, and the invention of any one of claims 1 to 3 has the following Configuration has been added.

The vibration damping body (30) includes a ring body (12, 2).
0) and is formed annularly along the outer peripheral surface (9) of the traveling wheel body (6). The invention of claim 6 corresponds to the first embodiment and other examples 1 to 6 and the second embodiment and other examples 1 to 2, and the invention of any one of claims 1 to 5 The following configuration has been added.

The ring bodies (12, 20) are formed of metal, and the damping bodies (19, 27, 30) are formed mainly of damping resin.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] First, a sound insulating structure for a traveling wheel according to a first embodiment of the present invention is shown in FIG.
This will be described with reference to FIGS.

In the partition shown in FIG. 1A, a runner 1 is supported by rails 2, and a panel 3 is suspended from the runner 1. In the runner 1, the traveling wheel 4 can be supported on the support shaft 5 and roll on the inner surface of the rail 2. The running wheels 4 of the runner 1 are improved.

This running wheel 4 (rotation center line C) is shown in FIG.
As shown in (a), the following running wheel body 6 and inner ring 7
And an outer ring 8. <Running Wheel Body 6 shown in FIGS. 2A and 3> The running wheel body 6 is formed of metal and has an outer peripheral surface 9 formed in a circular shape around the rotation center line C, and the rotation center. And both end faces 10 orthogonal to the line C. The outer peripheral surface 9 is formed with an annular engaging concave portion 11 (engaging portion) centered on the rotation center line C.

<Inner Ring 7 shown in FIGS. 2 (a) and 3> The inner ring body 12, which is the main body of the inner ring 7, is formed of metal and formed in a circular shape with the rotation center line C as the center. Outer wall 13 and end wall 1 orthogonal to the rotation center line C.
And 4. An annular engaging projection 16 (engaging portion) centering on the rotation center line C is formed on the inner peripheral surface 15 of the outer peripheral wall 13, and the outer peripheral surface 17 of the outer peripheral wall 13 has the same shape. An annular engaging recess 18 (engaging portion) is formed.

An annular vibration damper 19 centered on the rotation center line C has an outer peripheral wall 13 and an end wall 14 inside the annular main body 12.
Buried over. More specifically, FIG.
As shown in (a), the inner ring 7 is formed of a commercially available damping steel plate, and the two metal plates 12 constituting the ring body 12 are formed.
A damping body 19 made of a damping resin is sandwiched between a.

<Outer ring 8 shown in FIGS. 2 (a) and 3> A ring main body 20 which is a main component of the outer ring 8 (outermost ring).
Has an outer peripheral wall 21 formed of metal and formed in a circular shape with the rotation center line C as a center, and an end wall 22 orthogonal to the rotation center line C. An annular engaging projection 24 (engaging portion) is formed on the inner peripheral surface 23 of the outer peripheral wall 21 around the rotation center line C, and the outer peripheral surface 25 (rolling) of the outer peripheral wall 21 is formed. On the outer peripheral surface), a similar annular concave portion 26 is formed.

An annular vibration damper 27 centered on the rotation center line C has an outer peripheral wall 21 and an end wall 22 inside the annular body 20.
Buried over. More specifically, FIG.
As shown in (a), the outer ring 8 is formed of a commercially available damping steel plate, and the two metal plates 20 forming the ring body 20 are formed.
A vibration damping body 27 made of a vibration damping resin is sandwiched between a.

<Running wheel body 6 includes inner ring 7 and outer ring 8
As shown in FIG. 3, as the fixing means R, the engaging recess 11 of the traveling wheel body 6 is used.
And an engaging convex portion 16 and an engaging concave portion 18 of the inner ring 7;
The engagement convex portion 24 of the outer ring 8 corresponds to this.

When the inner ring 7 is fitted from one end face 10 of the two end faces 10 of the traveling wheel body 6, the end wall 14 of the inner ring 7 is overlapped with the end face 10 of the traveling wheel body 6 and the inner ring The inner peripheral surface 15 of the outer peripheral wall 13 of the ring 7 is overlapped with the outer peripheral surface 9 of the traveling wheel main body 6, and the engaging projection 16 of the inner ring 7 is fitted into the engaging concave portion 11 of the traveling wheel main body 6. Furthermore, when the outer ring 8 is fitted from the other end face 10 side, the end wall 22 of the outer ring 8 is superimposed on the end face 10 of the traveling wheel body 6 and the inner peripheral surface 23 of the outer wall 21 of the outer ring 8 is The engagement projection 24 of the outer ring 8 is fitted into the engagement recess 18 of the inner ring 7 by being superimposed on the outer peripheral surface 17 of the inner ring 7.

<Characteristics of First Embodiment> The first embodiment has the following characteristics * (other than other technical ideas described later). * Between the rolling outer peripheral surface 25 of the outer ring 8 and the outer peripheral surface 9 of the traveling wheel body 6, in addition to the ring bodies 12, 20, vibration dampers 19, 2 are provided.
7 is provided. Therefore, noises that are easily generated when the traveling wheel 4 rolls on the rail 2 can be prevented by the vibration dampers 19 and 27.

An inner ring 7 and an outer ring 8 are fitted to the outer peripheral surface 9 of the traveling wheel main body 6 from the inside on the rotation center line C side to the outside in the radial direction and overlap each other. Therefore, even at the overlapping surface portion between the inner ring 7 and the outer ring 8, it has a vibration damping function. Therefore, the noise caused by the traveling wheels 4 can be further prevented.

* The vibration dampers 19 of the inner ring 7 and the outer ring 8
27 is buried in the ring bodies 12 and 20. Therefore, the ring bodies 12, 20 and the vibration dampers 19, 27 are integrated, and the number of parts is reduced. Therefore, the inner ring 7 and the outer ring 8 can be easily attached to the traveling wheels 4.

* The vibration dampers 19 of the inner ring 7 and the outer ring 8
27 is formed in an annular shape along the outer peripheral surface 9 of the traveling wheel body 6. Therefore, noise caused by the traveling wheels 4 can be reliably prevented.

* In the inner ring 7 and the outer ring 8, the ring bodies 12, 20 are formed of metal, and the vibration dampers 19, 2 are formed.
7 is made of a vibration damping resin. Therefore, the rotational resistance of the traveling wheel 4 can be reduced, and noise from the traveling wheel 4 can be reliably prevented.

[Alternative Example 1 of First Embodiment] An alternative example 1 shown in FIG. 1 (b) is an improved traveling wheel 4 which is supported by a partition runner 1 and can roll on the inner surface of a rail 2. In terms of
It is the same as the traveling wheel 4 of the first embodiment. However, this alternative example 1 differs from the first embodiment in that a ball bearing is used as the traveling wheel body 6.

[Alternative Example 2 of First Embodiment] In an alternative example 2 shown in FIG. 4, the outer ring 8 in the first embodiment is omitted. Therefore, the ring ring 7 of the other example 2 corresponds to the inner ring ring 7 of the first embodiment, and the outer peripheral surface 17 of the ring ring 7 becomes the rolling outer peripheral surface.

[Alternative Example 3 of First Embodiment] In an alternative example 3 shown in FIG. 5, the fixing means R for positioning the inner ring ring 7 and the outer ring ring 8 on the traveling wheel main body 6 is modified as follows.

As the fixing means R in the first embodiment, the engaging concave portion 11 of the traveling wheel body 6, the engaging convex portion 16 and the engaging concave portion 18 of the inner ring 7 and the engaging convex portion 24 of the outer ring 8
Are omitted. Inner ring 7 for running wheel body 6
Is the same as in the first embodiment. When the outer ring 8 is also fitted from the end face 10 side on which the inner ring 7 is fitted, the end wall 22 of the outer ring 8 is superimposed on the end wall 14 of the inner ring 7 and the outer wall 21 of the outer ring 8 is formed. The inner peripheral surface 23 is superimposed on the outer peripheral surface 17 of the inner ring 7. The inner ring 7 and the outer ring 8 are positioned with respect to the traveling wheel body 6 by bolts 28 screwed to the traveling wheel body 6 through these end walls 14 and 22.

[Another Example 4 of the First Embodiment] In an alternative example 4 shown in FIG. 6, the fixing means R for positioning the inner ring ring 7 and the outer ring ring 8 on the traveling wheel main body 6 is modified as follows.

As the fixing means R in the first embodiment, the engaging concave portion 11 of the traveling wheel body 6, the engaging convex portion 16 and the engaging concave portion 18 of the inner ring 7 and the engaging convex portion 24 of the outer ring 8
Are omitted. In the inner ring 7 of the first embodiment, the end wall 14 is omitted, and only the outer peripheral wall 13 is fitted to the outer peripheral surface 9 of the traveling wheel body 6. The outer ring 8 is divided into two parts and arranged on both end faces 10 of the traveling wheel body 6.
When the outer rings 8 are fitted from both ends 10, respectively, the end walls 22 of both outer rings 8 are superimposed on both end surfaces 10 of the traveling wheel body 6 and both end surfaces of the outer peripheral wall 13 of the inner ring 7. The inner peripheral surface 23 of the outer peripheral wall 21 of the ring 8 is superimposed on the outer peripheral surface 17 of the inner ring 7. Engaging portions 29 are formed at opposing ends of the outer peripheral walls 21 of the outer ring rings 8, and the engaging portions 29 are fitted to each other to connect the outer ring rings 8 to each other.

[Alternative Example 5 of the First Embodiment] In an alternative example 5 shown in FIG. 7, the inner ring 7 is omitted in the alternative example 4 of the first embodiment (see FIG. 6), and the outer peripheral wall 21 of the outer ring 8 is formed. Inner peripheral surface 23
Is superposed on the outer peripheral surface 9 of the traveling wheel body 6.

[Another Example 6 of the First Embodiment] In another example 6 shown in FIG. 8, the inner ring 7 is changed in the other example 4 (see FIG. 6) of the first embodiment. In the inner ring 7 of the other example 6, the vibration damper 19 is omitted from the inner ring 7 of the other example 4, and the inner ring 7 is formed only by the ring body 12. Instead of the damping body 19, a damping body 30 shown in FIG. 12B is sandwiched between the outer peripheral surface 9 of the traveling wheel body 6 and the inner peripheral surface 15 of the outer peripheral wall 13 of the inner ring ring 7. . In the vibration damping body 30, a vibration damping sheet 31 made of a vibration damping resin includes a metal plate 32 and a restraining plate 3.
3 (steel plate or the like). In addition, as shown in FIG. 12C, the damping body 30 may be constituted by only a damping sheet 31 made of a damping resin.

[Second Embodiment] Next, FIGS. 2 (b) and 9 show a sound insulation structure for running wheels according to a second embodiment of the present invention.
This will be described with reference to FIG.

The traveling wheels 4 according to the second embodiment are also:
Like the traveling wheel 4 of the first embodiment, the traveling wheel 4 is supported by the partition runner 1. This running wheel 4 (rotation center line C)
As shown in FIG. 2 (b), the main body includes a traveling wheel main body 6, a vibration damper 30, and an outer ring 8.

<Running Wheel Body 6 shown in FIGS. 2 (b) and 9> The running wheel body 6 is formed of a metal and has an outer peripheral surface 9 formed in a circular shape with the rotation center line C as a center.
It has both end faces 10 orthogonal to the rotation center line C.

<Vibration damper 30 shown in FIG. 2B and FIG. 9>
This vibration damper 30 is another example 6 of the first embodiment (see FIG. 8).
This is the same as the vibration damping body 30 shown in FIG. 1, and is formed in an annular shape with both ends facing each other. In this vibration damping body 30, as shown in FIG. 12 (b), a vibration damping sheet 31 made of a vibration damping resin is sandwiched between a metal plate 32 and a constraint plate 33 (such as a steel plate).

<Outer ring 8 shown in FIGS. 2 (b) and 9> A ring main body 20 which is a main component of the outer ring 8 (outermost ring).
Has an outer peripheral wall 21 formed of metal and formed in a circular shape with the rotation center line C as a center, and an end wall 22 orthogonal to the rotation center line C. This ring body 20
Inside, an annular vibration damper 27 centered on the rotation center line C is embedded over the outer peripheral wall 21 and the end wall 22. More specifically, as shown in FIG.
Is formed of a commercially available damping steel plate, and a damping body 27 made of a damping resin is sandwiched between both metal plates 20 a constituting the ring body 20.

<Fixing Means R for Positioning Damper 30 and Outer Ring 8 on Running Wheel Body 6> As shown in FIG. 9, the damping body 30 is fitted on the outer peripheral surface 9 of the running wheel body 6. .
When the outer ring 8 is fitted from one end face 10 of the both end faces 10 of the running wheel body 6, the end wall 22 of the outer ring 8 is superimposed on the end face 10 of the running wheel body 6 and the end face of the vibration damper 30. At the same time, the vibration damper 30 is sandwiched between the outer peripheral surface 9 of the traveling wheel body 6 and the inner peripheral surface 23 of the outer peripheral wall 21 of the outer ring ring 8. The damper 30 and the outer ring 8 are positioned with respect to the traveling wheel body 6 by bolts 28 screwed to the traveling wheel body 6 through the end wall 22. Outer peripheral surface 2 of this outer ring 8
5 is a rolling outer peripheral surface. In addition, as shown in FIG. 12C, the damping body 30 may be constituted by only a damping sheet 31 made of a damping resin.

<Characteristics of Second Embodiment> The second embodiment has the following characteristics * (other than other technical ideas described later). * Between the rolling outer peripheral surface 25 of the outer race 8 and the outer peripheral surface 9 of the traveling wheel main body 6, vibration dampers 27 and 30 are provided in addition to the annular main body 20. Therefore, noises which are likely to be generated when the traveling wheel 4 rolls on the rail 2 can be prevented by the vibration dampers 27 and 30.

* The vibration dampers 27 and 30 are mounted on the traveling wheel body 6
Are formed in an annular shape along the outer peripheral surface 9. Therefore, noise caused by the traveling wheels 4 can be reliably prevented. * The ring body 20 of the outer ring 8 is formed of metal, and the vibration dampers 27 and 30 are formed of vibration damping resin. Therefore, the rotational resistance of the traveling wheel 4 can be reduced, and noise from the traveling wheel 4 can be reliably prevented.

[Alternative Example 1 of Second Embodiment] In an alternative example 1 shown in FIG. 10, the outer ring 8 is divided into two parts in the second embodiment and arranged on both end faces 10 of the traveling wheel body 6.
When the outer rings 8 are fitted from both ends 10, respectively, the end walls 22 of the outer rings 8 are overlapped on both ends 10 of the traveling wheel body 6 and both ends of the vibration damper 30, and the vibration damper 30 is formed. It is sandwiched between the outer peripheral surface 9 of the traveling wheel body 6 and the inner peripheral surface 23 of the outer peripheral wall 21 of both outer ring rings 8. The ends of the outer ring rings 8 face each other on the outer peripheral surface 9 of the traveling wheel body 6. This end wall 22
The vibration damper 30 and both outer ring rings 8 are positioned with respect to the traveling wheel main body 6 by bolts 28 screwed into the traveling wheel main body 6 through. The outer peripheral surfaces 25 of the two outer ring rings 8 serve as rolling outer peripheral surfaces.

[Alternative Example 2 of Second Embodiment] In an alternative example 2 shown in FIG. 11, the outer ring 8 in the second embodiment (see FIG. 9) is used.
Has changed. In the outer ring 8 of the other example 2, the vibration damper 27 is omitted from the outer ring 8 of the other example 1, and the ring body 2
It is molded only with 0.

[Other Embodiments] In addition to the above-described embodiments, the present invention may be configured as indicated by * below. * Although not shown, three or more rings are fitted to the outer peripheral surface 9 of the traveling wheel body 6 sequentially from the inside on the rotation center line C side to the outside in the radial direction and overlap each other.

* Although not shown, a holding plate is used in place of the bolt 28 in the fixing means R. [Other technical ideas] The technical ideas (other than the claims) that can be grasped from the embodiment will be described together with the effects.

(A) In claim 1, a fixing means R for positioning the ring (the inner ring 7 and the outer ring 8) to the traveling wheel body 6 is provided. (B) In claim 3, a fixing means R for positioning the inner ring ring 7 and the outer ring ring 8 on the traveling wheel main body 6 is provided.

(C) In the third aspect, the inner ring 7 is fitted from one end face 10 side of the both end faces 10 of the running wheel body 6 intersecting the rotation center line C of the running wheel body 6. The outer ring 8 is fitted from the other end face 10 side,
Engaging portions (engaging concave portion 11, engaging convex portion 16, engaging concave portion 1) for positioning inner ring ring 7 and outer ring ring 8 with respect to traveling wheel main body 6.
8, an engagement projection 24) is provided. Therefore, the inner ring 7 and the outer ring 8 can be easily assembled and positioned with respect to the traveling wheel body 6.

(D) In claim 3, the outer ring 8 is divided into two parts, and one of the two end faces 10 of the traveling wheel body 6 intersecting the rotation center line C of the traveling wheel body 6 is formed.
One outer ring 8 is fitted to the outer peripheral surface 17 of the inner ring 7 from the side, and the other outer ring 8 is fitted to the outer peripheral surface 17 of the inner ring 7 from the other end face 10. Is provided with an engagement portion 29 fitted to each other. Therefore, the inner ring 7 and the outer ring 8 can be easily assembled and positioned with respect to the traveling wheel body 6.

(E) In any one of claims 1 to 6, or in (a), (b), (c) or (d), the running wheel 4
Can be rolled on the inner surface of the rail 2 while being supported by the partition runner 1 that suspends the panel 3 while being supported by the rail 2. Accordingly, in the partition runner 1, noise caused by the traveling wheels 4 can be prevented.

[0054]

The traveling wheel (4) according to the first aspect of the present invention.
According to the sound insulation structure of (1), the noise which tends to be generated when the traveling wheel (4) rolls on the rail (2) is reduced by the vibration damper (19, 27, 3).
0).

According to the sound insulation structure of the traveling wheel (4) according to the second or third aspect of the present invention, the vibration damping function is provided even at the overlapping surface between the respective rings (7, 8). Noise due to the traveling wheel (4) can be further prevented.

According to the fourth aspect of the present invention, in addition to the effects of any one of the first to third aspects of the present invention, the ring body (12, 20) and the vibration damper ( 1
9, 27) are integrated with each other, the number of parts is reduced, the assembling of each wheel ring (7, 8) to the traveling wheel (4) becomes easy, and the annular vibration damper (19, 27) is used. Noise of the traveling wheels (4) can be reliably prevented.

According to the fifth aspect of the invention, in addition to the effect of any one of the first to third aspects, the noise of the traveling wheel (4) is reduced by the annular vibration damper (30). It can be reliably prevented.

According to the sixth aspect of the present invention, in addition to the effects of any one of the first to fifth aspects, the rotational resistance of the traveling wheel (4) is reduced and the traveling wheel (4 ) Can be reliably prevented.

[Brief description of the drawings]

1A is a partial cross-sectional view illustrating a traveling mechanism in a partition according to a first embodiment, and FIG. 1B is a partial cross-sectional view illustrating a traveling mechanism in a partition according to another example 1 of the first embodiment. is there.

FIG. 2A is an exploded perspective view showing a traveling wheel according to a first embodiment, and FIG. 2B is an exploded perspective view showing a traveling wheel according to a second embodiment.

FIG. 3 is a partial sectional view showing a traveling wheel according to the first embodiment.

FIG. 4 is a partial sectional view showing a traveling wheel according to another example 2 of the first embodiment.

FIG. 5 is a partial sectional view showing a traveling wheel according to another example 3 of the first embodiment.

FIG. 6 is a partial sectional view showing a traveling wheel according to another example 4 of the first embodiment.

FIG. 7 is a partial sectional view showing a traveling wheel according to another example 5 of the first embodiment.

FIG. 8 is a partial cross-sectional view illustrating traveling wheels according to another example 6 of the first embodiment.

FIG. 9 is a partial sectional view showing a traveling wheel according to a second embodiment.

FIG. 10 is a partial sectional view of a traveling wheel according to another example 1 of the second embodiment.

FIG. 11 is a partial sectional view of a traveling wheel according to another example 2 of the second embodiment.

12A is a partial cross-sectional view illustrating an example of a vibration damping body that is a vibration damping steel sheet, FIG. 12B is a partial cross-sectional view illustrating an example of a vibration damping body including a vibration damping sheet, and FIG. () Is a partial sectional view showing only the vibration damping sheet.

[Explanation of symbols]

Reference numeral 6: running wheel body, 7: inner ring, 8: outer ring, 9: outer peripheral surface, 12: annular body, 17: rolling outer peripheral surface, 19: vibration damper, 20: annular body, 25: rolling Outer peripheral surface, 27: damping body, 30: damping body, C: rotation center line.

Claims (6)

[Claims] The present invention further comprises a ring fitted on an outer peripheral surface of a traveling wheel main body. The ring has a rolling outer peripheral surface and an outer peripheral surface of the traveling wheel main body in addition to a ring main body having a rolling outer peripheral surface. A sound insulation structure for running wheels, characterized by having a vibration damper between the two. 2. A plurality of annular rings which are sequentially fitted to an outer peripheral surface of a traveling wheel body from an inner side which is a rotation center line side to an outer side in a radial direction and are superimposed on each other, and The outer ring has a rolling outer surface on the ring body, and a predetermined ring of each ring is restricted between the rolling outer surface and the outer surface of the traveling wheel body in addition to the ring body. A sound insulation structure for a traveling wheel, comprising a vibration body. 3. An inner ring is fitted to the outer peripheral surface of the traveling wheel body, and an outer ring is fitted to the outer peripheral surface of the inner ring so that they are overlapped with each other. A traveling wheel having an outer peripheral surface, wherein the inner ring ring and the outer ring ring are provided with a vibration damper between the rolling outer peripheral surface and the outer peripheral surface of the traveling wheel main body, in addition to the annular body. Sound insulation structure. 4. The vibration damper according to claim 1, wherein the vibration damper is embedded in the wheel body and is formed in a ring shape along the outer peripheral surface of the traveling wheel body. A sound insulating structure for a traveling wheel according to claim. 5. The vibration damper according to claim 1, wherein the vibration damper is superimposed on the ring body and is formed in a ring shape along the outer peripheral surface of the traveling wheel body. The sound insulation structure of the traveling wheels described in the paragraph. 6. The method according to claim 1, wherein the ring body is formed of metal, and the damping body is formed mainly of a damping resin. Sound insulation structure for running wheels.