JP2009174609A - Tubular vibration isolating mount - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tubular vibration isolating mount capable of substantially reducing cost without sacrificing rigidity and elasticity to be equipped by a stopper 4. <P>SOLUTION: In the vibration isolating mount 10, a coupling rubber 3 for coupling an inner tubular member 1 and outer tubular member 2 and a stopper 4 for restricting the relative displacement of the members 1, 2 are arranged between the members. The outer tubular member 2 is assembled in a bracket 5. In this case, the stopper 4 is formed by bending a part of the bracket 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In the present invention, a connecting rubber for connecting the inner cylinder member and the outer cylinder member and a stopper for restricting relative displacement of these members are disposed, and the outer cylinder member is assembled to a bracket. The present invention relates to an anti-vibration mount, and particularly relates to an anti-vibration mount that can reduce costs.

  Conventionally, as shown in a perspective view in FIG. 1 and in a cross-sectional view in FIG. 2, a connecting rubber 93 connecting these members between an inner cylinder member 91 and an outer cylinder member 92, and these members 91, 92, respectively. A cylindrical anti-vibration mount 90 is known in which a stopper 94 for limiting the relative displacement of the outer cylinder member 92 is disposed and the outer cylinder member 92 is assembled to the bracket 95 (see, for example, Patent Document 1). In the case of what is shown, the outer cylinder member 92 is press-fitted and assembled into a cylindrical portion 97 of a bracket 95 composed of a flat plate portion 96 and a cylindrical portion 97.

  Such a cylindrical vibration-proof mount 90 has, for example, an inner cylinder member 91 attached to the engine and an outer cylinder member 92 attached to the vehicle body side via a bracket 95 to transmit engine vibration to the vehicle body. It functions as an anti-vibration means that suppresses noise.

  As such a stopper 94, it is required to ensure rigidity for the inner cylinder member 91 to reliably limit the relative displacement with the outer cylinder member 92. In the case illustrated in FIGS. No. 95 is formed by vulcanizing and bonding a shock absorbing cover rubber 99 around the cored bar 98.

3 to 5 are sectional views showing a modification of the vibration isolating mount 90 in a cross section corresponding to FIG. 2, and the vibration isolating mount 90A shown in FIG. 3 includes an inner cylinder member 91 and an outer cylinder member. The core rubber 98A is embedded in the vicinity of the inner cylindrical member 91 of the connecting rubber 93A for connecting the base 92 to ensure rigidity, and this portion functions as the stopper 94. Further, the anti-corrosion shown in FIG. The vibration mount 90B is configured such that a portion of the inner cylinder member 91B in the circumferential direction protrudes radially outward and this portion functions as a core metal 98B of the stopper 94B. The vibration isolation mount 90C shown in FIG. A part of the outer cylindrical member 92C is folded inward, and the part is configured as a stopper 94C having rigidity.
JP-A-5-164188

  However, although the conventional technology described above can provide both rigidity and elasticity required as a stopper, any of the examples shown in FIGS. It was sought after. The present invention has been made in view of such problems, and provides a vibration-proof mount that can significantly reduce the cost without sacrificing the rigidity and elasticity of the stopper. With the goal.

<1> includes a connecting rubber that connects the inner cylinder member and the outer cylinder member, and a stopper that limits the relative displacement of these members, and the outer cylinder member is assembled to the bracket. In the anti-vibration mount
The stopper is an anti-vibration mount configured by bending a part of the bracket.

  <2> In <1>, the bracket is formed by welding a flat plate member and a cylindrical member having an axis perpendicular to the flat plate member, and the outer cylinder member is press-fitted into the cylindrical member and assembled. The bent portion of the bracket constituting the stopper is a vibration-proof mount including a tongue-like portion formed by cutting out a part of the flat plate member corresponding to the bottom surface of the cylindrical member.

  <3> is an anti-vibration mount in which a plurality of the stoppers are provided in <1> or <2>.

  According to <1>, since the stopper is configured by bending a part of the bracket, the stopper can be formed only by bending and the cost can be significantly reduced.

  According to <2>, the bracket is formed by welding a flat plate member and a cylindrical member, the outer cylinder member is press-fitted into the cylindrical member and assembled, and the bracket constituting the stopper is bent. Since the portion is a tongue-like portion formed by cutting out a part of the flat plate member corresponding to the bottom surface of the cylindrical member, the cost can be further reduced, and the size of the bent portion can be reduced. By optimizing, the rigidity required as a stopper can be imparted.

  According to <3>, since a plurality of the stoppers are provided, the amplitude in both directions of the reciprocating vibration can be limited.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 6 is a plan view showing the vibration isolating mount of this embodiment, FIG. 7 (a) is a cross-sectional view in a cross section passing through the axis, and the vibration isolating mount 10 includes the inner cylinder member 1 and the outer cylinder. A connecting rubber 3 for connecting these members and a stopper 4 for restricting relative displacement of these members 1 and 2 are disposed between the members 2 and the outer cylinder member 2 is assembled to the bracket 5. Yes.

  The anti-vibration mount 10 is characterized in that the stopper 4 provided therein is formed by bending a part of the bracket 5, and this configuration greatly increases the cost required to form the stopper 4. Can be reduced.

  Here, the bracket 5 is formed by welding a flat plate member 6 and a cylindrical member 7, and the outer cylinder member 2 is press-fitted into the cylindrical member 7 and assembled. The flat plate member 6 and the axis of the cylindrical member 7 do not need to be orthogonal to each other, and may intersect at an angle smaller than 90 ° as shown in FIG.

  FIG. 8 is a perspective view showing the flat plate member 6 before bending, FIG. 9 is a perspective view showing the flat plate member 6 and the cylindrical member 7 immediately before assembling them, and FIG. 10 is an outer cylinder member. 2 is a perspective view showing a state immediately before being press-fitted into the bracket 5, and the flat plate member 6 is a portion corresponding to the bottom surface of the cylindrical member 7 under assembly to the cylindrical member 7 in a state before the bending process. A part is cut out, and as a result, a tongue-like portion 6a protruding in a tongue shape is formed.

  After the state shown in FIG. 8, the flat plate member 6 is a bracket in which the tip of the tongue-like portion 6 a is bent approximately 90 degrees so as to protrude inside the cylindrical member 7, and then the cylindrical member 7 is assembled and fixed by welding 5 is formed.

  Then, after that, as shown in FIG. 10, if the outer cylinder member 2 connected to the inner cylinder member 2 by the connecting rubber 3 is press-fitted into the cylinder member 7, the outer cylinder member 2 and the bracket 5 are fixed. The anti-vibration mount 10 can be formed. At this time, the stopper 4 formed by bending the flat plate member 6 is arranged in a direction intersecting with the extending direction of the connecting rubber 3 in the circumferential direction around the axis of the inner cylinder member 1, and thereby the extending of the connecting rubber 3. The relative displacement between the outer cylinder member 2 and the inner cylinder member 1 in a direction substantially orthogonal to the existing direction can be limited.

  Since the stopper 4 formed by bending the tongue-like portion 6a of the flat plate member 6 is formed only by bending, the cost of the vibration isolating mount 10 can be reduced, and the rigidity of the flat plate can be reduced. Can be given.

  FIG. 11 shows a modified example of the bracket 5, and in the bracket 15 of this modified example, the flat plate member 16 shown in FIG. 12 in a state before bending is a part of the portion corresponding to the bottom surface of the cylindrical member 7. One tongue-like portion 16a formed by cutting out is owned, and this tongue-like portion 16a has a bent tip portion formed wide so that both sides 17 of the tip of the tongue-like portion 16a are bent. The stopper 14 can be formed by bending the tip further. In this case, both side portions 7 at the tip of the tongue-shaped portion 16a function as ribs, increasing the rigidity against the force in the direction in which the stopper 14 is tilted, thereby limiting vibration. It is possible to improve the accuracy of the limit amplitude when doing so.

It is a perspective view which shows the conventional anti-vibration mount. It is sectional drawing which shows the conventional anti-vibration mount. It is sectional drawing which shows the modification of the conventional anti-vibration mount. It is sectional drawing which shows the other modification of the conventional vibration isolating mount. It is sectional drawing which shows the other modification of the conventional vibration isolating mount. It is a top view which shows the vibration proof mount of embodiment which concerns on this invention. It is sectional drawing which shows the vibration proof mount of embodiment which concerns on this invention. It is a perspective view which shows the flat plate member in the state before a bending process. It is a perspective view which shows a flat member and a cylindrical member in the state before an assembly | attachment. It is a perspective view which shows a bracket and an outer cylinder member in the state before an assembly | attachment. It is a perspective view which shows the flat plate member before the bending process of the vibration isolating mount of a modification. It is a perspective view which shows the state before the assembly | attachment of the bracket and outer cylinder member of the vibration isolating mount of a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inner cylinder member 2 Outer cylinder member 3 Connecting rubber 4 Stopper 5 Bracket 6 Flat plate member 6a Tongue part 7 Cylindrical member 14 Stopper 15 Bracket 16 Flat plate member 16a Tongue part 17 Both side parts

Claims (3)

In an anti-vibration mount in which a connecting rubber for connecting them and a stopper for restricting relative displacement of these members are disposed between the inner cylinder member and the outer cylinder member, and the outer cylinder member is assembled to a bracket. ,
The stopper is a vibration-proof mount formed by bending a part of the bracket.   The bracket is formed by welding a flat plate member and a cylindrical member, the outer cylinder member is press-fitted into the cylindrical member and assembled, and a bent portion of the bracket constituting the stopper is formed by the flat plate member. 2. The anti-vibration mount according to claim 1, comprising a tongue-like portion formed by cutting out a part of a portion corresponding to the bottom surface of the cylindrical member.   The vibration-proof mount according to claim 1, wherein a plurality of the stoppers are provided.

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