JP2009234414A - Stabilizer bush and its mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stabilizer bush capable of solving a problem that the stabilizer bush is damaged and generates an abnormal sound due to the intrusion of a foreign matter such as mud water, sand, etc. into a clearance between the stabilizer bush and a side slipping stopper, and capable of restraining the side-slip of the stabilizer in the axial direction as much as possible. <P>SOLUTION: A side slip stopper 26 is stored in a storage recessed part 28 and a side surface in the axial direction of the storage recessed part 28 is made to abut on the side slip stopper 26 by forming the storage recessed part 28 recessed outward in the diametrical direction from an inserting through-hole 12 at an intermediate part in the axial direction and making a ring shape in the circumferential direction inside on the stabilizer bush 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a stabilizer bush that is fixed to a vehicle body by a bracket in a state in which the stabilizer bar is inserted through an insertion hole that penetrates in the axial direction, and to which the stabilizer bar is elastically supported by the vehicle body, and a mounting structure thereof.

The stabilizer bar is a torsional rigid spring (torsion bar) that is attached to reduce the inclination of the vehicle body, and both ends thereof are attached to the left and right suspensions, and acts to suppress this when the left and right wheels move differently up and down.
For example, when turning a corner, the suspension tends to contract on the outer ring side due to centrifugal force and to extend on the inner ring side. As a result, the vehicle body tends to tilt outward due to centrifugal force.
In this way, the stabilizer bar generates torsion when the left and right wheels move in the opposite phase (when rolling), and suppresses the movement of the left and right wheels in the opposite phase by resistance due to the torsional rigidity, and accumulates by twisting. The left and right wheels, which have moved in the opposite phase with the elastic restoring force, work to quickly return them to their original positions.

As described above, the stabilizer bar has a function of suppressing the roll angle, thereby improving the steering stability (running stability) of the vehicle.
When the stabilizer bar is attached to the vehicle body, a stabilizer bush as a vibration insulating member is interposed between the vehicle body and the stabilizer bar so that the stabilizer bar is elastically supported by the vehicle body.

The stabilizer bar has a generally U-shaped planar shape as a whole, and a central portion extending substantially linearly in the vehicle width direction (the left-right direction of the vehicle) is fixed to the vehicle body via a pair of stabilizer bushes. Each end of the arm is fixed to a suspension that supports the wheel.
The stabilizer bush is composed of a rubber elastic body having an insertion hole that penetrates in the axial direction at the center in the radial direction, and is fixed to the vehicle body by a rigid bracket in a state where the stabilizer bar is inserted through the insertion hole. It is attached.

FIG. 11 shows an example of a conventionally used stabilizer bush (disclosed in the following Patent Document 1). In the figure, reference numeral 200 denotes a stabilizer bush, and 202 denotes an insertion hole penetrating in the axial direction through which the stabilizer bar is inserted. Represents.
As shown in FIG. 11, the stabilizer bush 200 is formed with rubber flange portions 204 projecting radially outward at both end portions in the axial direction along the circumferential direction.

The stabilizer bush 200 is also provided with a slit 206 in the axial direction. The stabilizer bush 200 is fitted to the stabilizer bar through the slit 206 in the direction perpendicular to the axis, and is fixed to the vehicle body by the bracket 208 in this state.
The bracket 208 includes an outer fitting portion 210 that is fitted on the stabilizer bush 200 and a fixing portion 212 that protrudes horizontally from both ends in the circumferential direction. The outer fitting portion 210 is fitted on the stabilizer bush 200. In this state, the fixing portion 212 is fixed to the vehicle body, and the stabilizer bush 200 is attached to the vehicle body.

By the way, when the stabilizer bar is twisted to suppress the movement of the left and right wheels in the opposite phase and to suppress the roll angle, the stabilizer bar is moved relative to the vehicle body, that is, the stabilizer bush in the axial direction. The force to act acts.
At this time, if the stabilizer bar moves relative to the vehicle body and the stabilizer bush in the axial direction (lateral deviation), the function of suppressing the roll angle by the stabilizer bar is diminished.
Therefore, conventionally, a ring-shaped lateral displacement stopper is fixed to the stabilizer bar, and the stabilizer bush and lateral displacement stopper are brought into contact with each other at the time of lateral displacement, and the lateral displacement of the stabilizer bar is prevented by the stopper action at that time. .

FIG. 12 shows a specific example thereof (disclosed in Patent Document 1).
In the figure, reference numeral 213 denotes a ring-shaped lateral shift stopper fixed to the stabilizer bar 214.
Various structures have been proposed for fixing the lateral shift stopper 213 to the stabilizer bar 214 and for preventing the lateral shift of the stabilizer bar 214 by the lateral shift stopper 213.
For example, the following Patent Document 2 and Patent Document 3 disclose what prevents the lateral displacement of the stabilizer bar by contacting the lateral displacement stopper and the stabilizer bush.

However, the conventional ones are provided with the lateral displacement stopper exposed in the axial direction outside of the stabilizer bush in any case. In this case, muddy water, sand, etc. are formed in the clearance (clearance) between the lateral displacement stopper and the stabilizer bush. When the stabilizer bar twists and the stabilizer bar twists, the side surface in the axial direction of the stabilizer bush 200 is rubbed by foreign substances such as sand, and the same part may be worn out or cracks may be generated in some cases. In addition, there is a problem in that abnormal noise is generated when the lateral displacement stopper 213 slides relative to the side surface of the stabilizer bush 200 in a state where foreign matter is caught.
For this reason, conventionally, a certain gap or more is secured between the lateral displacement stopper and the side surface of the stabilizer bush to avoid the above problem.

  However, if there is a certain gap in the axial direction between the lateral displacement stopper and the stabilizer bush in this way, when the stabilizer bush works to suppress the roll angle by twisting, the stabilizer bar will move by the gap (clearance). Relative movement (lateral deviation) in the direction will cause adverse effects on the steering stabilization by the stabilizer bar.

  In addition, in the past, due to the variation in the fixing position of the lateral displacement stopper to the stabilizer bar, the gap between the stabilizer bush fixed to the vehicle body by the bracket and the lateral displacement stopper also varies, and there is a problem that is not necessarily constant, In that case, the timing of the stopper action by the lateral deviation stopper also varies, and there arises a problem that the characteristics at the time of stabilizing the steering by the stabilizer bar also become unstable.

JP 2007-203756 A JP 2002-2249 A JP 2001-260624 A

  The present invention is based on the circumstances as described above, and foreign matter such as muddy water and sand enters the gap between the stabilizer bush and the lateral displacement stopper, and the stabilizer bush is rubbed and damaged by the foreign matter. Stabilizer bushing that can solve the problem of generating abnormal noise and can suppress the lateral displacement of the stabilizer bar in the axial direction as much as possible, and can fully demonstrate the steering stabilization function by the stabilizer bar and its mounting It was made for the purpose of providing a structure.

  Thus, claim 1 relates to a stabilizer bush, which has an axially penetrating insertion hole in the central portion in the radial direction, and the stabilizer bar is brought into contact with a lateral displacement stopper that is fixed to the stabilizer bar. The stabilizer bar is inserted into the insertion hole so as to prevent lateral displacement in the axial direction, and the stabilizer bar is fixed to the vehicle body with a bracket in the insertion state, and the stabilizer bar is elastically supported by the vehicle body. In the stabilizer bush configured as described above, an accommodation recess having a ring shape in the circumferential direction is provided in the middle in the axial direction and is recessed radially outward from the insertion hole, and the lateral displacement stopper is provided in the accommodation recess. The housing recess is configured such that the axial side surface of the housing recess is brought into contact with the lateral displacement stopper.

  According to a second aspect of the present invention, in the first aspect of the present invention, the housing recess is configured to form a gap between the bottom surface of the radial recess and the outer peripheral surface of the lateral displacement stopper in the assembled state. And

  A third aspect of the present invention is characterized in that, in any one of the first and second aspects, both side surfaces in the axial direction of the receiving recess are in contact with the lateral displacement stopper during assembly.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, on both side surfaces of the housing recess in the axial direction, there are provided elastic protrusions protruding in the axial direction and opposite to each other toward the lateral displacement stopper, A pair of elastic protrusions are configured to abut against the lateral displacement stopper.

  According to a fifth aspect of the present invention, in the fourth aspect, the pair of elastic protrusions are configured to contact the lateral displacement stopper in an axially compressed state with a set tightening allowance in the assembled state.

  A sixth aspect of the present invention relates to a stabilizer bush mounting structure, wherein the stabilizer bush according to any one of the first to fifth aspects is assembled to the stabilizer bar so that the lateral displacement stopper fixed to the stabilizer bar is accommodated in the accommodation recess. The bracket is attached to the vehicle body with the bracket.

  According to a seventh aspect of the present invention, in the sixth aspect of the present invention, a position adjusting means for adjusting an axial position of an assembly position of the bracket to the stabilizer bush is provided.

  According to an eighth aspect of the present invention, in the seventh aspect, the position adjusting means includes: (a) a claw that protrudes radially from the bracket; and a claw that bites into an outer peripheral surface of the stabilizer bush; And a plurality of grooves corresponding to one of the claws are provided at intervals in the axial direction. It is characterized by.

Effects and effects of the invention

  As described above, according to the first aspect of the present invention, the housing bush is provided with an accommodation recess having a ring shape in the circumferential direction, which is recessed radially outward from the insertion hole at the axial intermediate portion, and there is a lateral displacement stopper there. And the axial side surface of the housing recess is brought into contact with the lateral displacement stopper.

  That is, in the prior art, the lateral displacement stopper that is attached to the stabilizer bar in a state exposed to the outside of the stabilizer bush is encased in the stabilizer bush according to the first aspect.

According to the first aspect, foreign matter such as muddy water or sand is caught between the lateral displacement stopper and the stabilizer bush, which causes the stabilizer bush to wear or generate noise due to the friction. Can be solved satisfactorily.
According to the first aspect of the present invention, at least one of the side surfaces in the axial direction of the housing recess can be brought into contact with the lateral displacement stopper.

Usually, a vehicle is provided with a pair of stabilizer bushes on the left and right sides, and a pair of lateral displacement stoppers is provided on the left and right accordingly.
At this time, with respect to the lateral deviation in the axial direction and one direction of the stabilizer bar, one of the left and right sets of the stabilizer bush and the lateral deviation stopper can prevent the stopper action, that is, the lateral deviation, and the other direction against the lateral deviation in the other direction. The lateral shift can be prevented by the pair.
Therefore, it is not always necessary to bring both side surfaces of the housing recess in the axial direction into contact with the lateral displacement stopper.

In the present invention, the housing recess may be configured to form a gap between the bottom surface of the radial recess and the outer peripheral surface of the lateral shift stopper in the assembled state (claim 2).
The reason for forming such a gap is as follows.

In the portion where the housing recess is formed, the rubber thickness in the radial direction of the stabilizer bush becomes thinner than the other portion.
Therefore, if there is no gap between the bottom surface of the housing recess and the outer peripheral surface of the lateral displacement stopper, when the stabilizer bar is relatively displaced in the direction perpendicular to the axis with respect to the stabilizer bush, the displacement restriction function or vibration in the direction perpendicular to the axis by the stabilizer bush The absorption function is dominated by the thin rubber part, and the characteristics inherent to the stabilizer bushing are not sufficiently exhibited.

  However, if a clearance is secured between the bottom surface of the housing recess and the outer peripheral surface of the lateral displacement stopper, the thin rubber portion avoids becoming a dominant factor in the characteristics of the stabilizer bush. It is possible to fully exhibit the inherent vibration absorption and displacement suppressing function in the direction perpendicular to the axis.

  In the present invention, the lateral displacement stopper is wrapped inside by the stabilizer bush, and therefore foreign matter such as muddy water and sand can be prevented from entering between the lateral displacement stopper and the stabilizer bush. It is possible to make contact in the axial direction from the beginning of assembly.

According to the third aspect of the present invention, in accordance with this, both side surfaces in the axial direction of the housing recess are brought into contact with the lateral displacement stopper from the beginning at the time of assembly. In this case, the stabilizer bushing twists the roll of the vehicle. When restraining and performing steering stabilization action, the lateral displacement stopper and stabilizer bush, more specifically, the stopper action can be made by contact with the side of the housing recess, and the lateral displacement of the stabilizer bar is minimized. It becomes possible to do.
As a result, it is possible to eliminate the adverse effect on the steering stabilization effect caused by the lateral shift of the stabilizer bar, and it is possible to increase the steering stability more than before.

  In this case, on both side surfaces of the housing recess in the axial direction, there are provided elastic projections that protrude in the axial direction and opposite to each other toward the lateral displacement stopper, and the pair of elastic projections are axially directed to the lateral displacement stopper. It can be made to contact | abut to (claim 4).

Further, in this case, the pair of elastic protrusions can be in contact with the lateral displacement stopper in the axially compressed state with a set tightening margin in the assembled state, that is, in a state where pre-compression is applied. ).
In this way, when the stabilizer bar tries to laterally shift in the axial direction, it can be made to act as a stopper with a strong force from the beginning, and the lateral displacement of the stabilizer bar can be suppressed more effectively.

Next, claim 6 relates to the mounting structure of the stabilizer bush, and this mounting structure can provide the above-mentioned effects.
In this case, position adjusting means for adjusting the position of the bracket to the stabilizer bush in the axial direction can be provided.

As described above, a slight positional error or variation occurs in the axial fixing position of the lateral shift stopper to the stabilizer bar.
In this case, when the stabilizer bush is attached to the vehicle in accordance with claim 7, it is possible to adjust the position of the mounting position in the axial direction in accordance with the position of the lateral deviation stopper, so that the position of the lateral deviation stopper can be accurately adjusted regardless of the position error. The lateral displacement stopper can be housed in the housing recess of the stabilizer bush with an appropriate relative positional relationship.

  In this case, the position adjusting means includes a claw for eating that is provided on the bracket so as to project radially, and a groove provided on the outer peripheral surface of the stabilizer bush corresponding to the claw. A plurality of grooves corresponding to one nail can be provided at intervals in the axial direction.

  By doing so, the bracket is fixed so that any one of the plurality of grooves provided at intervals in the axial direction is selected and the claw is bite into the groove. This makes it possible to easily adjust the mounting position, specifically the axial mounting position along the stabilizer bar, to an appropriate position.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 2, reference numeral 10 denotes a stabilizer bush, which has a through-hole 12 having a circular cross-section passing through in the axial direction in the central portion in the radial direction, and a state in which a metal stabilizer bar 14 is inserted therethrough. Thus, the stabilizer bar 14 is elastically supported by the vehicle body 18 by being attached and fixed to the vehicle body 18 by a metal rigid bracket 16.

As shown in FIG. 4, the bracket 16 has a gate shape as a whole.
Specifically, the bracket 16 is fitted to the outer peripheral surface of the stabilizer bush 10 from the outside in the radial direction, and is fitted with an outer fitting portion 20 having a substantially inverted U shape, and a fixing portion 22 bent from both ends in the circumferential direction. The fixing portion 22 is fixed to the vehicle body 18 in a state where the outer fitting portion 20 is elastically fitted to the outer peripheral surface of the stabilizer bush 10.

As shown in FIGS. 4 and 5, the stabilizer bush 10 has a reverse U-shaped side shape and side cross-sectional shape, and a cut 24 extending from the outer peripheral surface to the insertion hole 12 at a predetermined position in the circumferential direction. It is put.
The stabilizer bush 10 is opened at the cut portion 24 and fitted into the stabilizer bar 14 from the outside in the direction perpendicular to the axis, and is assembled to the stabilizer bar 14 so that the stabilizer bar 14 is inserted into the insertion hole 12.

  3, 4, and 5, reference numeral 26 denotes a metal circular ring-shaped lateral displacement stopper fixed in advance to the stabilizer bar 14, and the stabilizer bush 10 includes a stabilizer so as to wrap the lateral displacement stopper 26 inside. It is assembled to the bar 14.

As shown in FIG. 6, the stabilizer bush 10 is provided with an accommodation recess 28 which is recessed radially outwardly from the insertion hole 12 at the center in the axial direction and has an annular shape in the circumferential direction.
The accommodation recess 28 accommodates the lateral displacement stopper 26 fixed to the stabilizer bar 14 and has an outer diameter larger than the outer diameter of the lateral displacement stopper 26 fixed to the stabilizer bar 14. As shown in FIG. 2, a predetermined gap S is formed between the radial bottom surface 30 of the receiving recess 28 and the outer peripheral surface of the lateral shift stopper 26 under the assembled state to the stabilizer bar 14. It is.

The housing recess 28 has elastic projections 32 projecting axially in opposite directions, that is, in the axial direction toward the lateral displacement stopper 26 housed in the housing recess 28 on both left and right side surfaces in the figure. It is provided in a portion of the surface on the side of the insertion hole 12.
Here, in the state shown in FIG. 6, that is, the state before the assembly to the stabilizer bar 14, the pair of elastic protrusions 32 is the distance between the pair of elastic protrusions 32 and 32 in the axial width of the lateral displacement stopper 26. The protrusion height is determined so as to be smaller than that.
Therefore, in a state in which the lateral displacement stopper 26 is accommodated in the accommodation recess 28, the pair of elastic protrusions 32 are compressed in the axial direction with a preset tightening allowance set in the axial direction. Specifically, it comes into contact with both side surfaces in the axial direction, and the lateral displacement stopper 26 is elastically clamped from both the left and right sides in the figure.

Here, as shown in FIG. 6, the pair of elastic protrusions 32 protrude in the axial direction in an arc shape as the cross-sectional shape thereof advances in the axial direction.
Further, in the state shown in FIG. 2, these elastic protrusions 32 do not contact the outer peripheral ends of the corresponding pair of side surfaces of the lateral shift stopper 26, that is, contact the outer peripheral corners of the lateral shift stopper 26. The shape and the arrangement position are determined so as not to occur.

As shown in FIG. 3, the bracket 16 is provided with claws 36 </ b> A and 36 </ b> B that are bent radially inward at both left and right ends in the drawing.
These claws 36 </ b> A and 36 </ b> B have a function of biting into the outer peripheral surface of the stabilizer bush 10 and fixing the stabilizer bush 10 in the axial direction.

On the other hand, as shown in FIGS. 5 and 6, grooves 38A and 38B having a predetermined groove depth are provided on the outer peripheral surface of the stabilizer bush 10 in the radial direction.
Here, the grooves 38 </ b> A and 38 </ b> B are provided over the entire circumference on the outer peripheral surface excluding the bottom surface of the stabilizer bush 10.
As shown in FIG. 4, the claw 36 </ b> A of the bracket 16 is also provided continuously in the circumferential direction over the entire circumference of the outer fitting portion 20 having an inverted U shape.

Here, the groove 38A has three grooves 38A-1, 38A-2 and 38A-3 provided at equal intervals in the axial direction, and three grooves 38B are equally spaced at equal intervals in the axial direction. Groove 38B-1, 38B-2, 38B-3.
The groove 38A is a groove corresponding to the claw 36A of the bracket 16, and the groove 38B is a groove corresponding to the claw 36B of the bracket 16.
The bracket 16 is provided with a stabilizer bushing so that the pair of claws 36A and 36B can bite into either the grooves 38A-1 and 38B-1, or the grooves 38A-2 and 38B-2, or the grooves 38A-3 and 38B-3. 10 and is fixed to the vehicle body 18 (grooves 38A-1, 38B-1, 38A-2, 38B-2, 38A-3, and 38B-3 are spaced from the claws 36A and 36B, respectively. Are equal intervals).

In this embodiment, as shown in FIG. 5, the lateral displacement stopper 26 is accommodated in the accommodation recess 28, the stabilizer bush 10 is opened at the cut 24, and fitted to the stabilizer bar 14 in the direction perpendicular to the axis, and the insertion hole 12 in which the stabilizer bar 14 is inserted.
In this state, the outer fitting portion 20 of the bracket 16 is elastically fitted to the stabilizer bush 10 as shown in FIG. 4, and the fixing portion 22 is attached to the vehicle body 18 as shown in FIG. By fixing to the stabilizer bar 10, the stabilizer bush 10 is assembled to the stabilizer bar 14 and fixed to the vehicle body 18 and attached.

  As shown in FIG. 7 (I), at the stage where the bracket 16 is fitted to the stabilizer bush 10, the lower portion of the stabilizer bush 10 protrudes downward from the fixed portion 22 by a certain amount. When the bracket 16 is fixed to the vehicle body 18 at the fixing portion 22, the stabilizer bush 10 is in a state of being compressed and deformed by a certain amount in the vertical direction in FIG.

In this embodiment, when the lateral deviation stopper 26 is accommodated in the accommodation recess 28 of the stabilizer bush 10, the pair of elastic projections 32 are compressed by a certain amount on both side surfaces of the lateral deviation stopper 26 in the axial direction as shown in FIG. 3. It will be in the state contact | abutted in the deformed state.
That is, the stabilizer bush 10 is positioned in the axial direction with respect to the stabilizer bar 14 when the lateral displacement stopper 26 is accommodated in the accommodation recess 28.
Therefore, if the position where the lateral displacement stopper 26 is fixed to the stabilizer bar 14 has a positional error in the axial direction, the assembly position of the stabilizer bush 10 to the stabilizer bar 14 is also shifted in the axial direction.

On the other hand, since the bracket 16 is fixed to the vehicle body 18 in the circular fixing hole 42 (see FIG. 4), the fixing position of the bracket 16 to the vehicle body is constant.
Therefore, in this embodiment, the pair of claws 36A, 36B of the bracket 16 are inserted into the grooves 38A-1, 38B-1, 38A-2, 38B-2, 38A-3, 38B-3 on the outer peripheral surface of the stabilizer bush 10. The assembly position of the bracket 16 with respect to the stabilizer bush 10 is adjusted by selecting any of the groups from the above.
As a result, even if the lateral displacement stopper 26 is fixed to the stabilizer bar 14 at a position where an error has occurred in the axial direction, the stabilizer bush 10 can be secured to the lateral displacement stopper 26 in an appropriate positional relationship without any trouble. Can be fixed to the stabilizer bar 14 and can be fixedly attached to the vehicle body 18.

In this embodiment, when the stabilizer bar 14 is about to be laterally displaced in the axial direction with the stabilizer bush 10 attached, the stabilizer bar 14 is about to be laterally displaced in either the right direction or the left direction in the left-right direction. At this time, one of the pair of elastic protrusions 32 in the stabilizer bush 10 instantaneously exhibits a stopper action, and effectively suppresses the lateral displacement of the stabilizer bar 14.
Further, when the stabilizer bar 14 is about to be laterally displaced to the other in the left-right direction of the vehicle, the other elastic protrusion 32 instantaneously exerts a stopper action and functions to suppress the lateral displacement.

  According to the present embodiment as described above, foreign matter such as muddy water and sand is caught between the lateral displacement stopper 26 and the stabilizer bush 10, which causes the stabilizer bush 10 to be worn or worn. The problem of generating sound can be solved satisfactorily.

  In the present embodiment, since the clearance S is secured between the bottom surface 30 of the housing recess 28 and the outer peripheral surface of the lateral shift stopper 26, the diameter of the stabilizer bush 10 is formed in the portion where the housing recess 28 is formed. Even if the rubber thickness in the direction becomes thinner than other parts, the thin rubber part avoids becoming a dominant factor in the characteristics of the stabilizer bush 10 and the vibration absorption inherent in the stabilizer bush 10 is avoided. , The function of suppressing displacement in the direction perpendicular to the axis can be sufficiently exerted.

  Further, in the present embodiment, the lateral displacement stopper 26 is wrapped inside by the stabilizer bush 10, and therefore, foreign matter such as muddy water and sand can be prevented from entering between the lateral displacement stopper 26 and the stabilizer bush 10. 26 and the stabilizer bush 10 can be contacted in the axial direction from the beginning of assembly.

As a result, when the stabilizer bush 10 suppresses the roll of the vehicle by twisting and performs the steering stabilization action, the laterally-moving stopper 26 and the stabilizer bush 10, specifically the side surface of the housing recess 28, are instantaneously contacted. The stopper can be actuated, and the lateral displacement of the stabilizer bar 14 can be suppressed as small as possible.
As a result, the adverse effect on the steering stabilization effect due to the lateral displacement of the stabilizer bar 14 can be eliminated, and the steering stability can be improved as compared with the prior art.

  Further, elastic projections 32 protruding in the axial direction and opposite to each other toward the lateral displacement stopper 26 are provided on both side surfaces of the housing recess 28 in the axial direction, and the pair of elastic projections 32 are fixed to the lateral displacement stopper 26. Since the stabilizer bar 14 is caused to abut in the axial direction in a pre-compressed state with a tightening margin, when the stabilizer bar 14 attempts to laterally deviate in the axial direction, it can be made to act as a stopper with a strong force from the beginning. It can suppress more effectively.

8 to 10 show another embodiment of the present invention.
In this example, the shape of the outer peripheral portion of the stabilizer bush 10 is a wavy shape.
Specifically, rubber flange portions 44 projecting radially outward are provided at both axial end portions of the stabilizer bush 10, and a bulging portion 46 bulging in a radially outward manner is provided therebetween, and An example in which a U-shaped groove extending along the circumferential direction is formed between the pair of rubber flange portions 44 and the bulging portion 46, while the outer fitting portion 20 of the bracket 16 has a cross-sectional shape corresponding thereto. It is.
9 and 10, reference numeral 48 denotes a bulging portion corresponding to the rubber flange portion 44, and 50 denotes a bulging portion corresponding to the bulging portion 46 of the stabilizer bush 10 bulging in a drum shape.

In this embodiment, as shown in FIG. 10, the fixing hole 42 of the fixing portion 22 in the bracket 16 has a long hole shape in the left-right direction of the vehicle, that is, in the axial direction of the stabilizer bar 14.
Therefore, also in this embodiment, the fixing position of the stabilizer bush 10 by the bracket 16 can be adjusted in the axial direction of the stabilizer bar 14 by the fixing hole 42 having the elongated hole shape.
The other points are basically the same as those of the above embodiment shown in FIGS.

  Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in various forms without departing from the spirit of the present invention.

It is a perspective view which shows the stabilizer bush which is one Embodiment of this invention in an attachment state. It is the cross-sectional view and longitudinal cross-sectional view of the state shown in FIG. It is the longitudinal cross-sectional view which isolate | separated and showed the stabilizer bush and bracket of FIG. It is the perspective view and cross-sectional view of the state of FIG. It is a perspective view which shows the stabilizer bush of the same embodiment in the state before stabilizer bar insertion. It is a single-piece figure of the stabilizer bush of the embodiment. It is explanatory drawing of the attachment procedure to the vehicle body of the stabilizer bush of the embodiment. It is a figure which shows the stabilizer bush of other embodiment of this invention in the stabilizer bar insertion state. It is sectional drawing which shows the stabilizer bush of the embodiment in the attachment state to the vehicle body. It is a single item figure of the bracket in the embodiment. It is the perspective view which showed the conventional stabilizer bush in the separation state with the bracket. It is the figure which showed the lateral slip stopper with the other part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Stabilizer bush 12 Insertion hole 14 Stabilizer bar 16 Bracket 18 Car body 26 Side shift stopper 28 Housing recess 30 Bottom surface 32 Elastic protrusion 36A, 36B Claw 38A, 38B Groove
S clearance

Claims (8)

The insertion hole has a through hole in the axial direction in the center in the radial direction, and prevents the stabilizer bar from being laterally displaced in the axial direction by contact with a lateral displacement stopper that forms a ring shape fixed to the stabilizer bar. In the stabilizer bush formed in a cylindrical shape with a rubber elastic body, the stabilizer bar is inserted and fixed to the vehicle body with a bracket in the inserted state, and the stabilizer bar is elastically supported by the vehicle body. An accommodation recess that is recessed radially outward from the insertion hole and has an annular shape in the circumferential direction is provided inside, the lateral displacement stopper is accommodated in the accommodation recess, and the side surface in the axial direction of the accommodation recess is A stabilizer bush characterized by being brought into contact with a lateral displacement stopper.   2. The stabilizer bush according to claim 1, wherein the housing recess forms a gap between the bottom surface of the radial recess and the outer peripheral surface of the lateral displacement stopper in an assembled state.   3. The stabilizer bush according to claim 1, wherein both side surfaces in the axial direction of the housing recess come into contact with the lateral displacement stopper when assembled.   4. The elastic projections protruding in the axial direction and opposite to each other toward the lateral displacement stopper are provided on both side surfaces in the axial direction of the housing recess, and the pair of elastic projections are moved to the lateral displacement. A stabilizer bush characterized by being brought into contact with a stopper.   5. The stabilizer bush according to claim 4, wherein the pair of elastic protrusions are configured to abut against the lateral displacement stopper in a compressed state in an axial direction with a set tightening allowance in an assembled state.   The stabilizer bush according to any one of claims 1 to 5, wherein the lateral displacement stopper fixed to the stabilizer bar is assembled to the stabilizer bar so as to be accommodated in the accommodation recess, and is attached to the vehicle body by the bracket. The characteristic stabilizer bush mounting structure.   7. The stabilizer bush assembly structure according to claim 6, further comprising position adjusting means for adjusting an assembly position of the bracket to the stabilizer bush in an axial direction.   8. The position adjusting means according to claim 7, wherein: (b) a claw that is provided in a state of projecting radially from the bracket and that bites into an outer peripheral surface of the stabilizer bush; and (b) the stabilizer bush corresponding to the claw. A stabilizer bush, wherein a plurality of grooves corresponding to one of the claws are provided at intervals in the axial direction. Mounting structure.

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