JP2007177959A - Elastic supporting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elastic supporting device for effectively reducing input vibration, comprising an elastic supporting member having a pair of mounting parts and main spring parts elastically arranged therebetween, and a guide member arranged around the elastic supporting member. <P>SOLUTION: An elliptical ring member 3 is arranged to encircle the pair of mounting parts 2a, 2a connected to an exhaust system and to a body side, respectively, and the bellows main spring parts 2c, 2c elastically arranged therebetween. The ring member 3 passes through the main spring parts 2c, 2c in their expanding directions. In response to vibration input to the mounting parts 2a, 2a, the main spring parts 2c, 2c slide relative to the ring member 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elastic support device interposed between a support and a supported body.

  2. Description of the Related Art Conventionally, for example, an elastic support device interposed between a support and a support is configured as shown in FIG. In this structure, two attachment holes 102b and 102b are formed in the elastic member 102, and the attachment portions 102a and 102a in which the two attachment holes 102b and 102b are formed are elastically connected by main spring portions 102c and 102c. It has a different shape. Then, one end sides of a support member and a rod-like member connected to the support body are inserted into the two mounting holes 102b and 102b, respectively, and the support body is elastically supported by an elastic support device. The transmission of vibration from the support side to the support side is prevented.

By the way, in the elastic support device having the above-described configuration, when a large displacement is input in the pulling direction, there is nothing to catch the displacement, and thus the displacement cannot be regulated at a predetermined position. For this reason, as disclosed in Patent Document 1, for example, a stopper member is provided around an elastic member. In this structure, the guide member is disposed so as to surround the pair of mounting portions each having the mounting hole and the elastic member for elastically connecting them, and the large displacement input to the pair of mounting portions is The guide member is used for regulation.
European Patent Application No. 0816734

  By the way, in the case where the elastic support device is disposed in a portion with relatively large vibration, for example, between the vehicle body and the exhaust system, not only the stopper function as described above is added to the elastic support device. There is a demand for a configuration that can reduce the vibration so that the vibration of the exhaust system is not directly transmitted to the vehicle body.

  The present invention has been made in view of such points, and an object of the present invention is to provide an elastic support member having a pair of attachment portions and a main spring portion elastically connecting them, and arranged around the elastic support member. In an elastic support device including a guide member provided, input vibration can be effectively reduced.

  In order to achieve the above object, in the elastic support device according to the present invention, a guide member is disposed around an elastic support member having a pair of attachment portions and a main spring portion that elastically connects them, and the guide member is Then, a part of the elastic support member was penetrated so as to be slidable in the relative displacement direction of the both attachment portions.

  Specifically, according to the first aspect of the present invention, a pair of mounting portions that are respectively attached to the support side and the other side to the support side, and a main spring that elastically connects the both mounting portions so as to be relatively displaceable. An elastic support device comprising: an elastic support member having a portion; and a guide member disposed around the elastic support member so as to allow relative displacement in one direction of the pair of attachment portions. . And at least one part of the said guide member shall penetrate the part of the said elastic support member so that sliding contact is possible in the relative displacement direction of both said attachment parts.

  With this configuration, the movable range in the separation direction of the pair of attachment portions is substantially determined by the guide member disposed around the elastic support member having the pair of attachment portions and the main spring portion that elastically connects them. This guide member serves as a stopper. When a displacement is input to one of the pair of attachment portions, the portion of the elastic support member that is slid relative to the guide member that slidably passes through a portion of the elastic support member. Therefore, the input vibration is reduced by the sliding resistance at this time.

  In the above-described configuration, the main spring portion is formed in a bellows body that expands and contracts in the relative displacement direction of the both attachment portions, and the guide member penetrates the bellows body in the expansion and contraction direction. (Invention of Claim 2). As a result, the deformation of the main spring portion is facilitated and the static spring constant is reduced, so that vibrations generated in the exhaust system, for example, during idling can be prevented from being transmitted to the vehicle body side. Moreover, since the free length of the main spring portion is increased by forming the main spring portion in a bellows shape, the strain amount per unit length can be reduced even if the overall elongation amount is the same. The durability of the spring portion can be improved. Furthermore, by making the main spring portion bellows as described above and penetrating the guide member in the expansion and contraction direction, the contact area between the main spring portion and the guide member can be increased, and the main spring portion with respect to the guide member can be increased. Since the relative movement amount of the spring portion can be increased, the sliding resistance with the guide member when the main spring portion expands and contracts can be increased, and vibration can be absorbed more effectively.

  Here, when the elastic support member is not connected and fixed to the guide member, depending on the mounting state of the elastic support device, the guide member may be moved from a normal position with respect to the mounting portion and the main spring portion due to the weight of the guide member. There is a possibility of shifting downward.

  Therefore, the guide member is formed in a ring body that is long in the relative displacement direction of the both attachment portions, and one end side in the major axis direction of the ring body is embedded and fixed in one of the pair of attachment portions. (Invention of claim 3) is preferable. By doing so, either one of the two mounting portions is connected and fixed to the ring-shaped guide member, so that the position of the guide member from the normal position with respect to the mounting portion and the main spring portion. It is possible to reliably prevent the components from being shifted and hitting other components.

  In addition, each of the attachment portions is integrally formed with a spring body constituting the main spring portion, while the guide member is formed in a ring body that is long in the relative displacement direction of the both attachment portions, It is preferable that the main spring portion is configured by connecting and fixing the pair of spring bodies to both ends in the major axis direction of the ring body (invention of claim 4). In this way, the mounting portion is configured by separate members on the support side and the supported side, and the main spring portion is configured by connecting each mounting portion to the ring-shaped guide member by a separate spring body. Therefore, it is possible to configure the mounting portion and the main spring portion having characteristics required on the support side and the supported side, respectively, and the degree of design freedom can be increased.

  Furthermore, you may make it comprise the said guide member with a spring steel material (invention of Claim 5). As a result, when a large displacement is input to the mounting portion and the mounting portion abuts against the guide member, the guide member will also be elastically deformed, so in addition to the deformation characteristics of the main spring portion and the mounting portion. Thus, a three-stage elastic support device having the elastic deformation characteristic of the guide member can be obtained.

  As described above, according to the elastic support device of the present invention, the guide member that is disposed around the elastic support member having the pair of attachment portions and the main spring portion that elastically connects them and that functions as a stopper is provided with the elastic support device. Since a part of the support member is penetrated so as to be slidable in the relative displacement direction of both attachment parts, the input vibration can be effectively reduced by the sliding resistance between the attachment part and the guide member. In particular, by forming the main spring portion in a bellows shape, vibration generated during idling can be prevented from being transmitted to the vehicle body side, and vibration absorption performance and durability of the main spring portion can be improved.

  Moreover, the position of the guide member with respect to the attachment portion and the main spring portion is fixed by burying and fixing one end side in the major axis direction of the ring-shaped guide member that is long in the relative displacement direction of the attachment portions in one of the pair of attachment portions. Deviation can be prevented, and generation of noise due to contact between the guide member and another member can be prevented.

  Furthermore, since the pair of mounting portions are configured by separate members and each mounting portion is connected to the guide member by a separate spring body, the main spring portion is configured. The degree of freedom can be increased.

  Furthermore, by configuring the guide member with a spring steel material, it is possible to change the spring characteristics of the entire apparatus in three stages by adding deformation characteristics of the guide member in a state in which the mounting portion is in contact with the guide member. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the following description of the embodiment is merely illustrative in nature, and does not mean that the present invention, its application, or its use is limited.

(Embodiment 1)
FIG. 1 shows a schematic configuration of a hanger 1 (elastic support device) according to Embodiment 1 of the present invention. The hanger 1 includes a substantially plate-shaped hanger rubber 2 (elastic support member) integrally formed of an elastic material made of a synthetic rubber such as EPDM, and an oval shape disposed so as to surround the hanger rubber 2. Ring member 3 (guide member). Then, one end side of a rod-like member (not shown) extending from the vehicle body side and the exhaust system side is fitted into the two mounting holes formed in the hanger rubber 2, so that the exhaust system is suspended and supported below the vehicle body. It is supposed to be. FIG. 1 shows a state where the vehicle body side and the exhaust system side are connected to the hanger 1 (a state where the weight of the exhaust system side acts on the hanger 1). The same applies to each figure shown in the following embodiments.

  More specifically, the hanger rubber 2 includes mounting portions 2a and 2a formed with mounting holes 2b and 2b into which rod-shaped members are respectively inserted, and a bellows-shaped main spring portion 2c that elastically connects the mounting portions 2a and 2a. , 2c are integrally formed, and when vibration is input to the mounting portions 2a, 2a from the vehicle body side or the exhaust system side, the mounting portions 2a, 2a are relatively moved by elastic deformation of the main spring portions 2c, 2c. It is designed to be displaced. The mounting portions 2a and 2a are respectively provided with stopper portions 2d and 2d protruding at positions facing each other, and a large displacement in the compression direction of the main spring portion 2c with respect to the mounting portions 2a and 2a. When an input is made, the stopper portions 2d, 2d come into contact with each other and further displacement is restricted.

  The mounting portions 2a and 2a are arranged in the vertical direction, and one lower end portion and the other upper end portion are connected by the bellows-shaped main spring portions 2c and 2c, respectively. The one upper end portion and the other lower end portion are each formed in a substantially semicircular shape when viewed from the front, and a groove portion 2f (guide groove) extending in a semicircular shape in the circumferential direction is formed on the outer peripheral side thereof. The guide wall portions 2e and 2e are provided as described above.

  On the other hand, the ring member 3 is formed in an oval shape with a wire having a predetermined diameter, and is constituted by the pair of attachment portions 2a, 2a and main spring portions 2c, 2c that elastically connect them. It arrange | positions so that the hanger rubber 2 may be enclosed. The ring member 3 is not limited to a wire as in the present embodiment, and may be made of any material that does not easily cause elastic deformation, such as a metal or resin pipe or band.

  A part of the ring member 3 penetrates the bellows-shaped main spring portions 2c, 2c in the extending and contracting direction of the main spring portion 2c. Further, both ends of the ring member 3 in the longitudinal direction (major diameter direction) are formed in a semicircular shape having a smaller diameter than the semicircular portions of the mounting portions 2a, 2a, and the guide wall portions 2e, 2e are formed. The groove portion 2f is configured to be positioned at a substantially central position in the width direction. Thereby, it can prevent reliably that the ring member 3 remove | deviates from the attachment part 2a largely in the thickness direction, and falls from this attachment part 2a. When a large displacement in the pulling direction of the main spring portion 2c is input to the attachment portions 2a and 2a, the groove bottom of the groove portion 2f formed in the semicircular portion of the attachment portions 2a and 2a is the ring. Since it contacts the longitudinal direction both ends of the member 3 from an inner side, the further displacement can be controlled.

  Here, the hanger 1 is integrally formed with the ring member 3 in a non-bonded state. As a result, when the main spring portions 2 c and 2 c expand and contract, the main spring portions 2 c and 2 c slide in a state of being in close contact with the ring member 3. The method of manufacturing the hanger 1 is not limited to the method of integrally forming the hanger rubber 2 on the ring member 3 as in the present embodiment, but the hanger rubber 2 is formed in advance and the hanger rubber is formed. Alternatively, a wire or the like may be inserted into the insertion hole provided in 2 to form the wire or the like in an oval shape.

  As described above, in the present embodiment, the static spring constant can be lowered by forming the main spring portions 2c, 2c of the hanger rubber 2 into a bellows shape, so that the vibration of the exhaust pipe generated when the vehicle is idle is transmitted to the vehicle body side. Can be prevented. That is, in the conventional configuration (for example, the one shown in FIG. 11), the spring constant is almost constant (the chain line in FIG. 2), but the main spring portions 2c and 2c are formed in a bellows shape as described above. The deformation of the main spring portions 2c, 2c is facilitated, and the initial static spring constant (section I in the drawing) can be reduced as shown in FIG. In addition, in this FIG. 2, the part (section II in the figure) where the spring constant is abruptly increased is that at least one of the mounting portions 2a, 2a of the hanger rubber 2 is in contact with the inner side of the ring member 3, Alternatively, the attachment portions 2a, 2a themselves are elastically deformed in a state where the stopper portions 2d, 2d of the attachment portions 2a, 2a are in contact with each other and displacement of the attachment portions 2a, 2a is restricted. .

  Further, by forming the main spring portions 2c, 2c into a bellows shape, even when the main spring portions 2c, 2c extend to the same length, the amount of strain per unit length is reduced. Therefore, the main spring portions 2c, 2c It is possible to improve the durability.

  Further, by passing a part of the ring member 3 through the main spring portions 2c and 2c, the main spring portions 2c and 2c are input to the mounting portions 2a and 2a due to sliding resistance with the ring member 3 when the main spring portions 2c and 2c expand and contract. Can absorb and dampen vibrations. Also in this case, by making the main spring portions 2c and 2c bellows, the contact area between the main spring portions 2c and 2c and the ring member 3 is increased, and the moving distance of the main spring portions 2c and 2c is increased. Therefore, the sliding resistance can be increased and the vibration can be reduced more efficiently.

  Moreover, the vibration reducing effect as described above is achieved by disposing the ring member 3 around the hanger rubber 2 and penetrating the ring member 3 to the main spring portions 2c and 2c of the hanger rubber 2 so as to be slidable. This can be realized with a simple and inexpensive configuration.

  Further, by allowing the ring member 3 to penetrate in the expansion / contraction direction of the main spring portions 2c, 2c, the displacement in only the expansion / contraction direction (vertical direction in the example of FIG. 1) is allowed, while other directions (in FIG. 1) In the example, the displacement in the left-right direction and the front-rear direction can be restricted.

(Embodiment 2)
As shown in FIG. 3, the hanger 11 according to the second embodiment is one in which one of the mounting portions 12 a and 12 a of the hanger rubber 12 is connected and fixed to the ring member 3. Since only this point is different, the same parts are denoted by the same reference numerals, and only the parts different from the first embodiment will be described in detail below.

  That is, the hanger rubber 12 of the hanger 11 has connecting portions 12e and 12e for connecting the ring member 3 to one of the mounting portions 12a and 12a so that only the ring member 3 does not relatively move. Is provided. The connecting portions 12e and 12e are provided on the outer peripheral surface of the mounting portion 12a so as to connect the semicircular portion of the mounting portion 12a and the longitudinal end portion of the ring member 3, The ring member 3 passes through the portions 12e and 12e. In addition, in the semicircular portion of the other mounting portion 12a, the guide wall portions 12f and 12f (FIG. 3B) are formed so that the guide groove of the ring member 3 is formed on the outer peripheral side, as in the first embodiment. ) Shows only one side).

  Thus, by providing the connecting portions 12e and 12e with the ring member 3 in one of the mounting portions 12a and 12a of the hanger rubber 12, the position of the hanger rubber 12 with respect to the ring member 3 (see FIG. In the example, the vertical position) can be determined to some extent, so that the relative position between the ring member 3 and the hanger rubber 12 can be prevented from greatly deviating. That is, when the hanger rubber is not connected and fixed to the ring member as in the first embodiment described above, the ring member is largely displaced downward from the specified position with the hanger rubber by gravity, for example, an exhaust pipe. However, the above-described configuration can prevent the positional deviation of the ring member 3 and can prevent the generation of noise.

-Modification 1 of Embodiment 2
As described above, one of the attachment portions 12a and 12a of the hanger rubber 12 is not limited to the connection portion 12e and 12e projecting from one attachment portion 12a, and as shown in FIG. 4, one attachment of the hanger rubber 22 is provided. A part of the ring member 3 may be embedded in the portion 22a.

  Specifically, as shown in FIG. 4, one end in the longitudinal direction of the oval ring member 3 is embedded in the attachment portion 22a in a non-bonded state. Thereby, since the position of the ring member 3 with respect to the hanger rubber 22 is determined, it is possible to reliably prevent only the ring member 3 from moving and coming into contact with other members.

  Moreover, since the attachment part 22a with which the one end side of the longitudinal direction of the said ring member 3 was embed | buried is formed larger than the other attachment part 22e with which this ring member 3 is not embed | buried, this attachment part 22a, 22e. The bellows-shaped main spring portions 22c and 22c that elastically connect each other are configured to protrude outward on the mounting portion 22a side. Thereby, the movement with respect to the attachment part 22a of the said attachment part 22e becomes easier, and the static spring constant of the whole apparatus can be lowered | hung.

  Here, in the configuration of FIG. 4, the other attachment portion 22 e of the hanger rubber 22 is provided with the sliding portions 22 f and 22 f with the ring member 3, so that the other attachment portion 22 e with respect to the ring member 3 is provided. The sliding resistance is further increased, and vibrations input to both the attachment portions 22a and 22e can be reduced more efficiently.

-Modification 2 of Embodiment 2
As shown in FIG. 5 in which one end portion in the longitudinal direction of the ring member 3 is embedded in one attachment portion 32a of the hanger rubber 32 as in the above-described modification 1, without providing the sliding portions 22f and 22f. In addition, the groove portion 32g may be provided on the outer peripheral side of the other attachment portion 32e.

  In this case, since the sliding portion 22f as shown in FIG. 4 is not provided, the vibration absorption performance is lowered, but both side surfaces of the ring member 3 are covered on the outer peripheral side of the semicircular portion of the mounting portion 32e. As shown in FIG. 5 (b), the ring member 3 is positioned in the groove 32g, and the ring member 3 is attached to the other side. From the part 32e, it does not come off greatly in the thickness direction of the attachment part 32e.

(Embodiment 3)
As shown in FIG. 6, the hanger 41 according to the third embodiment includes a ring member in which both attachment portions 42 a and 42 a of a pair of hanger rubbers 42 and 42, which are formed of different members, are interposed via spring portions 42 c and 42 c (spring bodies), respectively. 3 is different from the above-described second embodiment only in the configuration of the main spring portion and the like, the same parts are denoted by the same reference numerals, and only the parts different from the first embodiment are described. This will be described in detail below.

  That is, the hanger rubbers 42 and 42 are each composed of a mounting portion 42a in which a mounting hole 42b is formed and a spring portion 42c, and the mounting portions 42a face each other inside the oval ring member 3. In this way, the ring member 3 is connected via spring portions 42c and 42c. Accordingly, in this embodiment, the spring portions 42c and 42c and the ring member 3 constitute a main spring portion that elastically connects the pair of attachment portions 42a and 42a. In the present embodiment, the spring portions 42c and 42c are compressed in a state where the attachment portions 42a and 42a are respectively connected to the vehicle body side and the exhaust system side, and thus the main spring portion is compressed. It differs from the above-mentioned Embodiment 1 and 2 used in a tension | pulling state by the point to use.

  The attachment portions 42a and 42a are each formed in a substantially rectangular parallelepiped shape so as to straddle the oval ring member 3 in a direction orthogonal to the longitudinal direction, and the ring member 3 slides on both ends in the longitudinal direction. It penetrates while touching. Further, stopper portions 42d and 42d functioning as stoppers when the attachment portions 42a and 42a come into contact with each other are projected from the surfaces of the attachment portions 42a and 42a facing each other.

  In this way, the mounting portions 42a and 42a and the spring portions 42c and 42c are configured by two separate members, so that the mounting portions 42a and 42a and the main spring are connected depending on the connected side (the vehicle body side or the exhaust system side). It becomes possible to change the structure of the part, and the design freedom of the hanger 41 can be improved.

  Further, since the spring portions 42c and 42c formed integrally with the mounting portions 42a and 42a are fixed to the ring member 3, the ring member 3 is positioned larger than the mounting portions 42a and 42a and the spring portions 42c and 42c. It is possible to reliably prevent the deviation from occurring.

(Embodiment 4)
As shown in FIG. 7, the hanger 51 according to the fourth embodiment includes a hanger rubber 52 penetrated by a U-shaped guide member 53 attached and fixed to the vehicle body side. The only difference is that a U-shaped guide member 53 is provided instead of the member 3 and that one mounting portion 52a of the hanger rubber 52 is configured to be slidable with respect to the guide member 53. The same reference numerals are given to the parts, and only the parts different from the first embodiment will be described in detail below.

  That is, the guide member 53 is formed in a U shape by, for example, a wire or a pipe, and is attached and fixed to the vehicle body at both end portions 53a and 53a on the opening end side. A hanger rubber 52 is disposed inside the guide member 53 so as to be slidable in the vertical direction. That is, as in the first embodiment, the guide member 53 penetrates the bellows-shaped main spring portions 52c, 52c of the hanger rubber 2 while sliding.

  Of the attachment portions 52a and 52e of the hanger rubber 52, the left and right sides of one attachment portion 52a located on the opening side (upper side in the drawing) of the guide member 53 are slidably in contact with the guide member 53. Moving portions 52f and 52f are formed. On the other hand, guide wall portions 52g and 52g are provided on the semicircular portion of the other mounting portion 52e located on the curved portion side (lower side in the drawing) of the guide member 53, whereby the guide member 53 is guided. Grooves are configured.

  As described above, by fixing the guide member 53 to the vehicle body side, it is possible to prevent the position of the guide member 53 from being displaced, so that the relative position with respect to the hanger rubber 2 can be maintained at a predetermined position. Can reliably prevent noise from coming into contact with the exhaust pipe.

(Other embodiments)
The configuration of the present invention is not limited to the above embodiment, and includes various other configurations. That is, in the first embodiment, the ring member 3 is allowed to pass through the bellows-shaped main spring portions 2c, 2c of the hanger rubber 2, but this is not a limitation, and for example, as shown in FIG. .. May be integrally formed on the left and right sides of the mounting portions 62a, 62a, respectively, and the ring member 3 may be passed through the protrusions 62e, 62e,. Further, as shown in FIG. 8, the ring member 3 is laterally disposed on the outer peripheral side of at least one semicircular portion of the two attachment portions 62a and 62a so that the ring member 3 is not greatly detached from the attachment portion 62a. A pair of guide wall portions 62f and 62f that are sandwiched may be provided.

  Further, the main spring portion is not limited to the bellows-like shape, and the main spring portions 102c and 102c of the hanger rubber 102 of the conventional configuration may be penetrated by the ring member 3 as shown in FIG. . Even in this case, when the displacement is input to the attachment portions 102a and 102a, the main spring portions 102c and 102c slide with respect to the ring member 3, so that the vibration is effectively reduced by the sliding resistance at this time. Can do. In this case, the main spring portions 102c and 102c are preferably made of a material that has a small static spring constant and is easily deformed so as not to transmit vibration during idling to the vehicle body.

  Furthermore, in each said embodiment, although the ring member 3 and the guide member 53 are comprised by the metal, resin, etc. which hardly produce elastic deformation, you may make it comprise not only this but a spring steel material. . As a result, when the ring member 3 and the guide member 53 are made of a material that does not elastically deform so much, the spring constant changes in two stages (see FIG. 2), whereas when the ring member 3 and the guide member 53 are made of spring steel as described above. 10, the elastic deformation characteristics of the ring member 3 and the guide member 53 after the hanger rubbers 2, 12, 22, 32, 42, 62 contact the ring member 3 or the guide member 53 are also shown. In addition (region III in FIG. 10), the spring constant can be changed in three stages.

  As described above, in the elastic support device of the present invention, the ring member is provided so as to surround the pair of attachment portions and the main spring portion elastically connecting them, and either the attachment portion or the main spring portion is provided. Since the ring member can be slidably penetrated in the displacement direction of the mounting portion to reduce the input vibration with an inexpensive configuration, for example, a hanger for suspending and supporting the exhaust system below the vehicle body, etc. Is particularly useful.

It is the (a) top view, (b) XX sectional view, (c) side view of the hanger which concerns on Embodiment 1 of this invention. 3 is a deflection-load diagram of a hanger according to Embodiment 1. FIG. It is the (a) top view of the hanger which concerns on Embodiment 2, (b) YY sectional view taken on the line. It is a figure equivalent to Drawing 3 (b) of a hanger concerning modification 1 of Embodiment 2. It is the (a) figure equivalent to Drawing 3 (b) of the hanger concerning modification 2 of Embodiment 2, and (b) it is a bottom view. It is a figure equivalent to Drawing 3 (b) of a hanger concerning Embodiment 3. It is the (a) equivalent figure of Drawing 3 (b), and (b) the side view of the hanger concerning Embodiment 4. It is a figure equivalent to Drawing 3 (b) of a hanger concerning other embodiments. It is a figure equivalent to Drawing 3 (b) of a hanger concerning other embodiments. It is a deflection-load diagram of a hanger concerning other embodiments. It is a front view which shows the structure of the conventional hanger.

Explanation of symbols

1, 11, 41, 51 Hanger (elastic support device)
2, 12, 22, 32, 42, 52, 62 Hanger rubber (elastic support member)
2a, 12a, 42a, 62a Mounting portion 2b, 42b Mounting hole 2c, 22c Main spring portion 2d, 42d Stopper portion 3 Ring member (guide member)
12e Connecting portions 22a, 32a, 52a One mounting portion 22e, 32e, 52e The other mounting portion 22f, 52f Sliding portions 2e, 32f, 52g Guide wall portion 32g Groove portion 42c Spring portion (spring body)
53 Guide member 53a End 62e Projection 62f Guide wall 102 Elastic member 102a Attachment 102b Attachment hole 102c Main spring part

Claims (5)

An elastic support member having a pair of attachment parts attached to one side on the support side and the other side to the support side, and a main spring part elastically connecting the two attachment parts so as to be relatively displaceable, and the elastic support An elastic support device comprising: a guide member disposed so as to allow relative displacement in one direction of the pair of attachment portions around the member;
At least a part of the guide member penetrates a part of the elastic support member so as to be slidable in a relative displacement direction of the mounting portions. In claim 1,
The main spring part is formed in a bellows body that expands and contracts in the relative displacement direction of the both attachment parts,
The elastic support device according to claim 1, wherein the guide member penetrates the bellows body in an expansion / contraction direction. In any one of Claim 1 or 2,
The guide member is formed in a ring body that is long in the relative displacement direction of the both attachment portions,
One end side of the ring body in the major axis direction is embedded and fixed in either one of the pair of attachment portions. In claim 1,
While each of the attachment portions is integrally formed with a spring body constituting the main spring portion,
The guide member is formed in a ring body that is long in the relative displacement direction of the both attachment portions, and the pair of spring bodies are connected and fixed to both ends in the major axis direction of the ring body, whereby the main spring An elastic support device comprising a portion. In any one of Claims 1-4,
The elastic support device, wherein the guide member is made of a spring steel material.

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