JP6146842B1 - Anti-vibration material - Google Patents

Abstract

An anti-vibration member capable of sufficiently suppressing propagation of vibration is provided. An anti-vibration member includes a first projecting portion that is elastically deformable and a first projecting portion that is elastically deformable and differs in hardness from the first projecting portion in the same direction as the first projecting portion. A protruding convex second protrusion 121, a length L1 from the bottom surface 112a to the first tip 111a of the first protrusion, and a length L2 from the bottom surface to the second tip 121a of the second protrusion. It has a support part (for example, the 1st support part 112 and the 2nd support part 122) which supports the 1st projection part and the 2nd projection part so that it may differ. [Selection] Figure 2

Description

  The present invention relates to a vibration isolating member.

  Conventionally, there is an anti-vibration member (anti-vibration buffer) that suppresses propagation of vibration (see, for example, Patent Document 1). In this vibration isolator, a plurality of protrusions (projections) having different heights are arranged on the surface side of a support portion (base) made of an elastic material.

  According to the configuration of Patent Document 1, vibrations from a relatively small load to a large load are received by a plurality of protrusions having different heights (see paragraph “0040”). Here, the support part and each protrusion part are integrally formed as the same member.

Japanese Patent Laid-Open No. 09-203192

  In the configuration of Patent Document 1, since the plurality of protrusions are all made of the same material, the characteristics (attenuation rate and frequency) of each protrusion are the same. Therefore, it may be difficult to absorb vibrations that could not be absorbed by one protrusion by other protrusions having different heights.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a vibration isolating member that can sufficiently suppress vibration propagation.

The vibration isolating member according to the present invention that achieves the above object includes a convex first protrusion that is elastically deformable, and is elastically deformable and has the same hardness as the first protrusion. A convex second protrusion projecting in the direction of, a length from the bottom surface to the first tip of the first protrusion, and a length from the bottom surface to the second tip of the second protrusion. And a support portion that supports the first protrusion and the second protrusion in a different manner. The support part includes a first support part formed integrally with the first protrusion part, and a second support provided with an insertion hole formed integrally with the second protrusion part and through which the first protrusion part is inserted. And the first support portion and the second support portion are stacked in a state where the first protrusion portion of the first support portion is inserted into the insertion hole of the second support portion. The bottom surface is a bottom surface of the first support portion.

  According to the vibration isolating member configured as described above, for example, when the first protruding portion protrudes relatively from the bottom surface of the support portion rather than the second protruding portion, the vibration propagated from the anti-vibration member is the first. The protrusion absorbs while elastically deforming. Further, according to the vibration isolating member, when the vibration isolating member comes into contact with the second projecting portion due to the first projecting portion being contracted by a certain amount or more, vibration transmitted from the vibration isolating member is applied to the first projecting portion to 2 The protrusion is absorbed while elastically deforming. Here, since the second protrusion has a hardness different from that of the first protrusion, the second protrusion has characteristics (attenuation rate and frequency) different from those of the first protrusion. That is, vibration that is propagated from the vibration-proof member and is not absorbed by the first protrusion can be effectively absorbed by the second protrusion having characteristics different from those of the first protrusion. Therefore, the vibration isolating member can sufficiently suppress the propagation of vibration.

It is a perspective view which shows the vibration proof member of embodiment, Comprising: (A) is a perspective view which shows the state which assembled the vibration proof member, (B) is a perspective view which shows the state which decomposed | disassembled the vibration proof member. It is a side view which shows a vibration isolator. It is sectional drawing which shows the vibration isolator of the modification of embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. The size and ratio of each member in the drawings are exaggerated for convenience of explanation and may be different from the actual size and ratio.

  FIG. 1: is a perspective view which shows the vibration isolator 100 of embodiment, (A) is a perspective view which shows the state which assembled the vibration isolator 100, (B) shows the state which decomposed | disassembled the vibration isolator 100 It is a perspective view. FIG. 2 is a side view showing the vibration isolating member 100.

  Briefly, as shown in FIG. 2, the vibration-proof member 100 is a first protrusion 111 that is elastically deformable and a first protrusion that is elastically deformable and has a hardness different from that of the first protrusion 111. A convex second projection 121 projecting in the same direction as the portion 111, a length L1 from the bottom surface 112a to the first tip 111a of the first projection 111, and the second projection 121 from the bottom surface 112a. Support portions (for example, the first support portion 112 and the second support portion 122) that support the first protrusion portion 111 and the second protrusion portion 121 so as to differ from the length L2 to the second tip 121a, Have

  As shown in FIGS. 1 (A) and 1 (B), the vibration-proof member 100 is a first member in which a plurality of first protrusions 111 and a disk-shaped first support part 112 are integrally formed as the same member. The second anti-vibration material 120, the second anti-vibration material 120, and the second anti-vibration material 110 and the second anti-vibration material 110, which are integrally formed as the same member. It is embodied by three members of a vibration isolation member 130 sandwiched between the materials 120.

  In the first vibration isolator 110, the first support portion 112 has a disk shape that is sufficiently thinner than the diameter. For example, the thickness of the first support portion 112 is considerably thinner than the length of the first protrusion 111. A plurality of columnar first protrusions 111 are integrally arranged on the top surface 112b of the first support portion 112. There are three first protrusions 111 on the top surface 112b of the first support 112, and three concentric circles {shown by S1 in FIG. 1B) so as to surround the first protrusion 111b. There are six relatively large concentric circles {illustrated by S2 in FIG. Each first protrusion 111 is separated from each other. For example, the first tip 111a of the first protrusion 111 is formed in a hemispherical shape. An excessive load is prevented from being applied to the first tip 111a of the first protrusion 111 pressed from the washing machine. That is, damage (plastic deformation and cracking) of the first protrusion 111 is prevented.

  The first vibration isolator 110 is elastically deformable. As the first vibration isolator 110, for example, butyl rubber (IIR), nitrile rubber (NBR), ethylene propylene rubber (EPDM), chloroprene rubber (CR), or silicone rubber can be applied. Specifically, for example, butyl rubber (IIR) having a hardness of Sure A60 is applied to the first vibration isolator 110.

  In the second vibration isolator 120, the second support portion 122 has a disk shape that is thicker than the length of the second protrusion 121. The second support part 122 has the same diameter as the first support part 112 and is considerably thicker than the thickness of the first support part 112. A plurality of columnar second protrusions 121 are integrally disposed on the top surface 122b of the second support portion 122. The diameter of the second protrusion 121 is the same as the diameter of the first protrusion 111. On the top surface 122b of the second support portion 122, there are three second protrusions 121 concentrically {illustrated by S1 in FIG. 1B}, and relatively large concentric circles so as to surround the three {FIG. 1 (B) is shown by S2}. Each of the second protrusions 121 is separated from each other. The second protrusion 121 is also separated from the first protrusion 111. The 2nd front-end | tip 121a of the 2nd projection part 121 is hemispherical as an example, and the center is formed flat. An excessive load is prevented from being applied to the second tip 121a pressed from the washing machine. That is, damage (plastic deformation and cracking) of the second protrusion 121 is prevented.

  In the second vibration isolator 120, the second support portion 122 has a circular insertion hole 122c penetrating from the top surface 122b to the bottom surface 122a, and the second support portion 122 is arranged in an arc shape surrounding the one. Two concentric circles {shown by S1 in FIG. 1B) so as to be adjacent to the two protrusions 121, and relative to be adjacent to the second protrusions 121 arranged in an arc shape surrounding the three. There are six concentric circles {shown by S2 in FIG. 1B}.

  Each insertion hole 122 c of the second support portion 122 allows the first protrusion 111 of the first vibration isolation material 110 to be inserted therethrough. The second vibration isolator 120 is laminated with the first vibration isolator 110 via the vibration isolator 130 in a state where the first protrusion 111 of the first vibration isolator 110 is inserted into the insertion hole 122c. The second vibration isolator 120 receives a load by deforming the second protrusion 121 along the Z direction.

  Furthermore, the second vibration isolator 120 suppresses deformation along the X direction and the Y direction of the first protrusion 111 of the first vibration isolator 110 via the inner peripheral surface of the insertion hole 122c. Since the second anti-vibration material 120 is harder than the first anti-vibration material 110, the first protrusion 111 is buckled in the X direction and the Y direction accompanying the deformation in the Z direction (the first protrusion 111 falls down or Can be effectively suppressed by the inner peripheral surface of the insertion hole 122c. That is, the second vibration isolator 120 can effectively suppress deformation of the first protrusion 111 other than the Z direction via the inner peripheral surface of the insertion hole 122c. The second vibration isolator 120 does not interfere with the deformation along the Z direction of the first protrusion 111 of the first vibration isolator 110.

  In the embodiment, the second vibration isolator 120 is harder than the first vibration isolator 110 and is elastically deformable. As the second vibration isolator 120, for example, butyl rubber (IIR), nitrile rubber (NBR), ethylene propylene rubber (EPDM), chloroprene rubber (CR), or silicone rubber can be applied. Specifically, for example, butyl rubber (IIR) having a hardness of Sure A70 is applied to the second vibration isolator 120.

  The vibration isolation member 130 has a disk shape that is sufficiently thinner than the diameter. The vibration isolation member 130 has the same diameter as the first support portion 112, but is slightly thinner than the thickness of the first support portion 112 of the first vibration isolation material 110. The vibration isolation member 130 has a circular through-hole 130c penetrating from the top surface 130b to the bottom surface 130a, concentric circles {shown by S1 in FIG. And six relatively large concentric circles {illustrated by S2 in FIG. 1B) so as to surround the three. The vibration isolation member 130 is laminated between the first support portion 112 and the second support portion 122 in a state where the plurality of first protrusions 111 of the first vibration isolation material 110 are passed through the corresponding through holes 130c. Is done. The vibration isolation member 130 may be bonded, thermally welded, or integrally formed with one or both of the first vibration isolation material 110 and the second vibration isolation material 120. The vibration isolation member 130 is made of a material (metal, reinforced plastics, or the like) that is considerably harder than the first vibration isolation material 110 and the second vibration isolation material 120.

  Here, the length L1 from the bottom surface 112a of the first support 112 to the first tip 111a of the first protrusion 111 is from the bottom 112a of the first support 112 to the second tip 121a of the second protrusion 121. It is longer than the length L2. Furthermore, the first protrusion 111 is relatively softer than the second protrusion 121.

  According to the vibration isolating member 100 of the above embodiment, the following operational effects are obtained.

  The anti-vibration member 100 is elastically deformable and protrudes in the same direction as the first protrusion 111 and the first protrusion 111 that is elastically deformable and is elastically deformable and has a hardness different from that of the first protrusion 111. A convex second protrusion 121, a length L1 from the bottom surface 112a to the first tip 111a of the first protrusion 111, a length L2 from the bottom surface 112a to the second tip 121a of the second protrusion 121, And a support portion (for example, the first support portion 112 and the second support portion 122) that support the first protrusion portion 111 and the second protrusion portion 121.

  According to the vibration isolator 100, for example, when the first protrusion 111 protrudes relatively from the bottom surface 112a of the support part (for example, the first support part 112) than the second protrusion 121, the anti-vibration member ( For example, vibration propagated from a washing machine absorbs the first protrusion 111 while elastically deforming. Further, according to the vibration isolating member 100, when the washing machine comes into contact with the second projection 121 due to the first projection 111 contracting more than a certain amount, vibration propagated from the washing machine is applied to the first projection 111 and the first projection 111 is compressed. 2 The protrusion 121 absorbs while elastically deforming. Here, since the second protrusion 121 is different in hardness from the first protrusion 111, the second protrusion 121 has different characteristics (attenuation rate and frequency) from the first protrusion 111. That is, the vibration propagated from the washing machine and not absorbed by the first protrusion 111 is effectively absorbed by the second protrusion 121 having characteristics (attenuation rate and frequency) different from those of the first protrusion 111. be able to. Therefore, the vibration isolating member 100 can sufficiently suppress the propagation of vibration.

  In particular, when the vibration isolator 100 is configured to place a washing machine, the first protrusion 111 and the second protrusion 121 are elastically deformed by the weight of the washing machine. That is, the anti-vibration member 100 may be such that the first protrusion 111 contracts and contacts the second protrusion 121 in a state where the washing machine is not vibrating (a state where the laundry is not washed). . In such a case, the 1st projection part 111 and the 2nd projection part 121 distribute and receive the load of a washing machine. Furthermore, the vibration isolating member 100 has different characteristics (the first projecting portion 111 and the second projecting portion 121) that cause various vibrations generated from the washing machine in a state where the washing machine is vibrating (washing the laundry). Can be suppressed by a different damping rate and frequency.

  In the vibration isolator 100, the length L1 from the bottom surface 112a of the support portion (for example, the first support portion 112) to the first tip 111a of the first projection portion 111 is the bottom surface 112a of the support portion (for example, the first support portion 112). It is preferable that the first protrusion 111 is longer than the length L2 from the second protrusion 121 to the second tip 121a, and the first protrusion 111 is softer than the second protrusion 121.

  According to the vibration isolator 100, the load of the washing machine below a certain value is received by the first protrusion 111, and the load of the washing machine exceeding a certain value is applied to the first protrusion 111 by the second protrusion 121. I can take it. Further, according to the vibration isolating member 100, the first protrusion 111 absorbs the vibration having a relatively low frequency generated from the washing machine, and the vibration having the relatively high frequency generated from the washing machine is first. It can be absorbed by the two protrusions 121.

  In the vibration isolator 100, it is preferable that the support portions (for example, the first support portion 112 and the second support portion 122) support the first protrusion 111 and the second protrusion 121 in a state where they are separated from each other.

  According to the vibration isolator 100, the first protrusion 111 pressed and compressed by the washing machine contacts the second protrusion 121, or is compressed by being pressed by the washing machine. It is possible to prevent the 111 and the second protrusion 121 from coming into contact with each other. That is, the vibration isolating member 100 transmits vibration propagated from the washing machine to the first protrusion 111 to the second protrusion 121 or vibration propagated from the washing machine to the second protrusion 121 to the first protrusion 111. Can be prevented. Therefore, the vibration isolator 100 can prevent the first protrusion 111 and the second protrusion 121 from interfering with each other, and can exhibit a predetermined elastic force.

  The vibration isolator 100 preferably includes a plurality of at least one of the first protrusions 111 and the second protrusions 121 in a state of being separated from each other.

  According to the vibration isolator 100, for example, the plurality of first protrusions 111 and the plurality of second protrusions 121 can be stably received without tilting the washing machine.

  In the vibration isolation member 100, the support portions (for example, the first support portion 112 and the second support portion 122) are integrated with the first support portion 112 formed integrally with the first protrusion 111 and the second protrusion 121. And a second support part 122 having an insertion hole 122c through which the first projection part 111 is inserted, and the first projection part 111 of the first support part 112 is inserted into the insertion hole 122c of the second support part 122. The first support part 112 and the second support part 122 are stacked, and the bottom surface 112 a is preferably the bottom surface of the first support part 112.

  According to the vibration isolator 100, the length L1 from the bottom surface 112a to the first tip 111a of the first projection 111 and the second tip 121a of the second projection 121 from the bottom 112a to the second tip 121a of the second projection 121 are very simple. Can be made to have different lengths L2.

  Further, according to the vibration isolating member 100, the first protrusion 111 having various lengths and hardnesses and the second protrusion 121 having various lengths and hardnesses can be arbitrarily set in accordance with required specifications. They can be combined.

  The vibration isolation member 100 further includes a vibration isolation member 130 that is formed in a plate shape, is harder than the first protrusion 111 and the second protrusion 121, and includes a through hole 130c that penetrates the first protrusion 111. The vibration isolation member 130 is preferably stacked between the first support portion 112 and the second support portion 122 in a state where the first protrusion 111 is passed through the through hole 130c.

  According to the vibration isolator 100, vibration propagated from the washing machine to the first protrusion 111 is transmitted to the second protrusion 121 via the first support 112 and the second support 122, or from the washing machine. It is possible to suppress the vibration propagated to the second protrusion 121 from being transmitted to the first protrusion 111 via the second support 122 and the first support 112. Therefore, the vibration isolator 100 can absorb the vibration of the washing machine independently by the vibration isolator 130 by the first protrusion 111 and the second protrusion 121.

  It is preferable that the vibration isolator 100 is used with the first protrusion 111 and the second protrusion 121 facing each other with respect to the washing machine.

  According to the vibration isolator 100, the first protrusion 111 and the second protrusion 121 are partially in contact with the legs of the washing machine in a state where the bottom surface 112a of the first support part 112 is in surface contact with the floor surface, for example. It can be set as the structure made to do. That is, the vibration isolator 100 can directly receive vibration from the legs of the washing machine by the first protrusion 111 and the second protrusion 121 and attenuate the vibration while elastically deforming according to the vibration. it can.

  As mentioned above, although preferred embodiment in this invention was described, these are the illustrations for demonstrating this invention, and are not the meaning which limits the scope of the present invention to these embodiment. The present invention can be modified based on the configurations described in the claims, and these are also within the scope of the present invention.

  For example, as shown in FIG. 3A, the first and second protrusions 211 and 221 having different lengths and hardnesses are joined to a single flat plate-like support 240, thereby providing a vibration isolating member. 200 may be configured.

  Further, as shown in FIG. 3B, the vibration isolation member 300 may be configured by integrally forming the second protrusion 321 and the support 340 as the same member. The first protrusion 311 can be inserted into and joined to the recess 340 a formed in the support portion 340.

  Further, as shown in FIG. 3C, the first protrusion 411 and the second protrusion 421 having the same length and different hardness are formed of a plate-like support portion 440 having a different thickness and a step. The anti-vibration member 400 may be configured by bonding to the same. The first protrusion 411 and the support 440, or the second protrusion 421 and the support 440 may be integrally configured as the same member (not shown).

  Further, as shown in FIG. 3D, the second protrusion 521 formed in the cylindrical shape is spaced apart and positioned radially outward of the first protrusion 511 formed in the columnar shape. The anti-vibration member 500 may be configured by joining the first protrusion 511 and the second protrusion 521 to the support 540. The first protrusion 511 and the support part 540, or the second protrusion 521 and the support part 540 may be integrally configured as the same member (not shown).

  Further, as shown in FIG. 3E, the first protrusion 611 and the second protrusion 621 are used as the support 640 in a state where the side surface of the first protrusion 611 and the side surface of the second protrusion 621 are in contact with each other. The vibration isolation member 600 may be configured by bonding. The first protrusion 611 and the support 640, or the second protrusion 621 and the support 640 may be integrally configured as the same member (not shown).

  Further, as shown in FIG. 3 (F), the two anti-vibration members 200 are arranged so that the respective support portions 240 are overlapped, and the first protrusion portion 211 and the second protrusion portion having different lengths and hardnesses. The vibration isolation member 700 may be configured so that 221 is provided in the vertical direction.

  Further, in addition to the first protrusion 111 and the second protrusion 121, the first protrusion 111 and the second protrusion 121 are provided with a third protrusion having a length and hardness different from each other to constitute a vibration isolating member. Also good. That is, the anti-vibration member may include three or more types of protrusions having different protrusion lengths and hardnesses.

  In the vibration isolator 100, the first protrusions 111 of the first vibration isolator 110 and the second protrusions 121 of the second vibration isolator 120 may be alternately arranged in a grid pattern.

  In the vibration isolator 100, the vibration isolator 130 is not essential. That is, the vibration isolation member 100 may be configured without using the vibration isolation member 130.

  Further, the member to be vibrated that suppresses the propagation of vibration by the vibration isolating member 100 is not limited to the washing machine. The vibration-proof member may be a piano, a bookshelf, or a chiffon.

  Further, the vibration isolation member 100 is disposed such that the first protrusion 111 and the second protrusion 121 protrude in the horizontal direction, and the bottom surface 112a of the support portion is in contact with the wall surface of the building. The present invention can also be applied to a configuration that suppresses propagation of vibration in the horizontal direction of the vibration member.

  Further, the vibration isolating member 100 does not always need to be in contact with the vibration isolating member. When the vibration isolating member moves more than a certain amount or falls, the vibration isolating member 100 comes into contact (including a collision) to The present invention can also be applied to a configuration that suppresses vibration propagation of the vibration isolating member.

  In addition, the vibration isolating member 100 is bonded to the vibration isolating member, and the vibration isolating member moves or drops more than a certain amount, so that it is attached to another structure (floor surface, wall surface, etc.). It can also be applied to a configuration that suppresses vibrations propagating from other structures (floor surface, wall surface, etc.) to the vibration-isolated member when contacted (including collision).

100, 200, 300, 400, 500, 600, 700 Anti-vibration member,
110 first vibration isolator,
111211,311,411,511,611 first protrusion,
111a first tip,
112 1st support part (support part),
112a bottom surface,
112b Top surface,
120 second vibration isolator,
121221, 321, 421, 521, 621 second protrusion,
121a second tip,
122 second support part (support part),
122a bottom surface,
122b Top surface,
122c insertion hole,
130 vibration isolation member,
130a bottom,
130b Top surface,
130c through hole,
240, 340, 440, 540, 640 support,
340a Concavity.

Claims (6)

A convex first protrusion that is elastically deformable;
A convex second protrusion that is elastically deformable and has a hardness different from that of the first protrusion and protrudes in the same direction as the first protrusion;
The length from the bottom surface to the first tip of the first protrusion is different from the length from the bottom surface to the second tip of the second protrusion, so that the first protrusion and the second protrusion Department have a, and a support portion for supporting the,
The support part includes a first support part formed integrally with the first protrusion part, and a second support provided with an insertion hole formed integrally with the second protrusion part and through which the first protrusion part is inserted. And
In a state where the first protrusion of the first support part is inserted through the insertion hole of the second support part, the first support part and the second support part are laminated,
The anti-vibration member is the bottom surface of the first support portion . The length from the bottom surface of the support portion to the first tip of the first protrusion is longer than the length from the bottom surface of the support portion to the second tip of the second protrusion,
The vibration isolation member according to claim 1, wherein the first protrusion is softer than the second protrusion.   The vibration isolation member according to claim 1 or 2, wherein the support portion supports the first protrusion and the second protrusion in a state where the first protrusion and the second protrusion are separated from each other.   The vibration isolator according to any one of claims 1 to 3, comprising a plurality of at least one of the first protrusion and the second protrusion in a state of being separated from each other. A vibration isolating member that is formed in a plate shape, is harder than the first protrusion and the second protrusion, and includes a through hole that penetrates the first protrusion;
The Saegifu member, in a state where the first protrusion is penetrating into the through hole, the laminated between the first support portion and the second supporting portions, one of claims 1 to 4 1 Anti-vibration member according to item . Against Hibofu member, the first used by opposing side of the protrusion and the second protrusion, vibration isolating member according to any one of claims 1-5.