JP7085450B2 - Anti-vibration support structure - Google Patents

Description

The present invention relates to an anti-vibration support structure.

Conventionally, as shown in FIG. 4, a vibration-proof support structure (vibration-proof grommet) including a spring member 101 made of a polymer material such as rubber has been known, and this vibration-proof support structure is supported by a support 102. In a situation where the body 103 is supported, vibration is suppressed from being propagated from the support 102 to the supported body 103, or conversely, from the supported body 103 to the support 102.

Japanese Unexamined Patent Publication No. 2014-20427 (Fig. 5) Japanese Unexamined Patent Publication No. 2004-116442

Anti-vibration support devices are used, for example, in the field of automobile equipment, and are particularly used around engines and exhaust devices.

In recent years, space saving of the internal combustion engine portion has been attempted from the viewpoint of securing a living space in an automobile, and the environmental temperature around the device tends to increase accordingly.

Therefore, it is necessary to take measures to prevent the spring member 101 made of a polymer material from being damaged by heat.

An object of the present invention is to provide a vibration-proof support structure having excellent heat resistance, being less susceptible to heat damage, and capable of exhibiting mainly axial springiness.

In order to solve the above problems, the anti-vibration support structure of the present invention is characterized by including a spring member in which a wire mesh is formed in a coil shape.

Further, as an embodiment, in the vibration-proof support structure described above, the wire mesh has a flat shape having a width larger than the thickness thereof, and the flat wire mesh is formed in a coil shape. It is characterized by that.

Further, the anti-vibration support structure of the present invention is an anti-vibration support structure for attaching a spring member having a wire mesh formed in a coil shape to the mating member, and has the spring member and the mounting hole provided in the mating member. It is characterized in that the spring member is attached to the mating member by screwing the spring member into the peripheral edge portion of the attachment hole.

Further, the vibration-proof support structure of the present invention is a vibration-proof support structure in which a spring member having a wire mesh formed in a coil shape is attached to a mating member, and the spring member and a collar inserted into the inner circumference of the spring member. A bolt inserted into the inner circumference of the collar and a screw hole provided in the mating member are provided, and the spring member is attached to the mating member by screwing the bolt into the screw hole.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a vibration-proof support structure which is excellent in heat resistance, is less susceptible to heat damage, and can mainly exhibit springiness in the axial direction.

Perspective view of the spring member provided in the vibration-proof support structure according to the embodiment. An exploded perspective view of the anti-vibration support structure (A) is a perspective view showing an assembled state of the vibration-proof support structure, and (B) is a perspective view showing an operating state of the vibration-proof support structure. Cross-sectional view of anti-vibration support device related to background technology

As shown in FIG. 1, the anti-vibration support structure according to the embodiment includes a spring member 11 in which a wire mesh is formed in a coil shape (spiral shape) as a component thereof.

The wire mesh is made by knitting fine metal wires in a knitted shape and performing compression molding and corrugation. The material of the thin metal wire is stainless steel, galvanized iron wire, copper-plated iron wire, titanium, aluminum or brass. The wire diameter of the thin metal wire is about φ0.04 to 0.60 mm. The density of the thin metal wire is about 0.9 to 4.0 g / cm ³ .

Further, the wire mesh has a flat shape having a width w ₁ larger than its thickness t ₁ , and the wire mesh having such a flat shape has a coil shape having a predetermined outer diameter d ₁ , inner diameter d ₂ and pitch p. Is formed as a spring member 11 forming a cylindrical body.

The coil-shaped spring member 11 made of the wire mesh is attached to one mating member 21 as a supported body (support target device bralet or the like).

At the time of mounting, as shown in FIG. 2, a mounting hole 22 is provided in advance in the mating member 21, and the spring member 11 is spirally moved (arrow S) with respect to the peripheral edge portion of the mounting hole 22 to the peripheral edge portion of the mounting hole 22. The spring member 11 is attached to the mating member 21 by screwing the spring member 11 to the middle of the axial direction. The mounting hole 22 is a circular hole, and its inner diameter d ₃ is formed to be smaller than the outer diameter d ₁ of the spring member 11 and larger than the inner diameter d ₂ of the spring member 11. The thickness t ₃ of the mating member 21 is formed to be equal to or slightly larger than the pitch p of the spring member 11.

When the coiled spring member 11 made of a wire mesh is attached to one mating member 21 as a supported body in this way, as shown in FIG. 2, the circle on the peripheral edge of the mounting hole 22 in the mating member 21. It is preferable to provide a notch-shaped engaging portion 23 at one location on the circumference and correspondingly provide a protruding engaging portion 13 at one location on the circumference of the outer diameter portion plane at a specific pitch of the spring member 11. Is. Then, in this way, in the process of spirally moving the spring member 11 with respect to the mounting hole 22 and screwing the spring member 11 into the peripheral edge portion of the mounting hole 22, the spring member 11 is engaged with the notch-shaped engaging portion 23 in a protruding shape. When the portion 13 is engaged and engaged, the screwing is stopped and the screwing amount is regulated. Therefore, by providing the screwing amount regulating means (stopper) in this way, the screwing amount of the spring member 11 can always be made constant.

Further, the spring member 11 made of the wire mesh is attached to the other mating member 31 as a support (such as a vehicle body side base).

At the time of mounting, as shown in FIG. 2, a screw hole 32 is provided in advance in the mating member 31, a collar 41 with a flange 42 is inserted into the inner circumference of the spring member 11, and a bolt 51 with a head 52 is inserted in the inner circumference of the collar 41. And screw the bolt 51 into the screw hole 32 to attach the spring member 11 to the mating member 31. As shown in FIG. 3A, screwing of the bolt 51 into the screw hole 32 is stopped until a gap c between pitches remains in the coil-shaped spring member 11. As shown in FIG. 3B, the size of the inter-pitch gap c changes or temporarily disappears according to the spring operation of the spring member 11.

In the vibration-proof support structure having the above configuration, the spring member made of a polymer material such as rubber is not provided, and instead, the spring member 11 made of a wire mesh is provided, and the spring member 11 made of a wire mesh is provided. Demonstrates excellent heat resistance due to its material. Therefore, it is possible to provide a vibration-proof support structure having a structure that is excellent in heat resistance, is less susceptible to heat damage, and can withstand use in a high temperature atmosphere.

Further, since the spring member 11 is formed by forming a wire mesh in a coil shape, the spring member 11 mainly exhibits a spring property in the axial direction (coil center axis direction). Therefore, it is possible to provide a vibration-proof support structure having a structure that easily receives a load or vibration input in the axial direction.

Further, by forming the spring member 11 in a coil shape, the spring member 11 is not divided into a plurality of parts and is integrally formed, so that the hole can be mounted at one point on the mounting hole 22 and at the same time outside. It is possible to form a diameter-side mounting portion as well.

Further, the collar 41 inserted into the inner peripheral side of the coiled spring member 11 comes into contact with the inner peripheral surface of the spring member 11, so that the wire mesh reduced diameter and the collar 41 are used during the axial behavior which is the main support direction. The outer peripheral surface slides and frictional force is generated. Therefore, it is possible to obtain friction damping due to this frictional force.

In this case, in the vibration-proof region where the amplitude is small, the damping is exhibited only by the spring property of the spring member 11 made of a wire mesh, and when a resonance region or an excessive external input is generated, friction damping due to frictional force is applied. In this way, the vibration isolation characteristics of the spring member 11 can be optimized.

As described above, according to the present invention, it is possible to achieve both effective anti-vibration support in a high temperature atmosphere, which was difficult in the past, without complicated assembly. ..

11 Spring member 13, 23 Engagement part 21, 31 Mating member 22 Mounting hole 32 Screw hole 41 Collar 42 Flange 51 Bolt 52 Head

Claims (4)

A vibration-proof support structure characterized by having a spring member in which a wire mesh is formed in a coil shape. In the anti-vibration support structure according to claim 1,
The wire mesh has a flat shape having a width larger than the thickness thereof, and the wire mesh forming the flat shape is formed in a coil shape. It is a vibration-proof support structure in which a spring member formed by forming a wire mesh in a coil shape is attached to a mating member.
The spring member and the mounting hole provided in the mating member are provided.
A vibration-proof support structure characterized in that the spring member is attached to the mating member by screwing the spring member into the peripheral edge portion of the attachment hole. It is a vibration-proof support structure in which a spring member formed by forming a wire mesh in a coil shape is attached to a mating member.
The spring member, a collar inserted into the inner circumference of the spring member, a bolt inserted into the inner circumference of the collar, and a screw hole provided in the mating member are provided.
A vibration-proof support structure characterized in that the spring member is attached to the mating member by screwing the bolt into the screw hole.

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