WO2014065186A1 - スタビライザ用ブシュ、接着用工具、および、接着方法 - Google Patents
スタビライザ用ブシュ、接着用工具、および、接着方法 Download PDFInfo
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- WO2014065186A1 WO2014065186A1 PCT/JP2013/078170 JP2013078170W WO2014065186A1 WO 2014065186 A1 WO2014065186 A1 WO 2014065186A1 JP 2013078170 W JP2013078170 W JP 2013078170W WO 2014065186 A1 WO2014065186 A1 WO 2014065186A1
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- WIPO (PCT)
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- bush
- hole
- arc
- stabilizer
- bar
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
- B60G21/0551—Mounting means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/14—Torsion springs consisting of bars or tubes
- F16F1/16—Attachments or mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/3842—Method of assembly, production or treatment; Mounting thereof
- F16F1/3856—Vulcanisation or gluing of interface between rigid and elastic sleeves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/13—Torsion spring
- B60G2202/135—Stabiliser bar and/or tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/14—Plastic spring, e.g. rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/122—Mounting of torsion springs
- B60G2204/1222—Middle mounts of stabiliser on vehicle body or chassis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
- B60G2204/4103—Elastic mounts, e.g. bushings having an eccentrically located inner sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
- B60G2206/427—Stabiliser bars or tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/73—Rubber; Elastomers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/821—Joining by gluing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/90—Maintenance
- B60G2206/91—Assembly procedures
Definitions
- the present invention relates to a stabilizer bush attached to a bar of a vehicle stabilizer, an adhesion tool used in an adhesion process of the bush to the bar, and an adhesion method using the adhesion tool.
- FIG. 1 is a perspective view illustrating a configuration of a stabilizer connected to a vehicle suspension device.
- the stabilizer 10 includes, for example, a bar 20 having a torsion part 21, an arm part 22, and a shoulder part 23 and having a substantially U-shape.
- the torsion portion 21 is attached to the vehicle body (not shown) via a rubber bush 30 (stabilizer bush), and the distal end portion of the arm portion 22 is attached to the suspension device 1 via the stabilizer link 2. It is connected (for example, Patent Document 1).
- the bush 30 is fixed to the vehicle body by a bracket 40.
- the torsional reaction force of the bar 20 is used to stabilize the vehicle posture.
- tires (not shown) are attached to the left and right axle portions 1 ⁇ / b> A of the suspension device 1.
- the bush 30 includes, for example, as shown in FIG. 2, a rectangular portion 31 whose outer peripheral section has a linear shape and a fan-shaped portion 32 whose outer peripheral section has an arc shape.
- a hole 30A is formed at the center of the bush 30, and the bar 20 of the stabilizer 10 is inserted into the hole 30A.
- the hole 30A has a circular shape, for example.
- the bracket 40 includes a U-shaped portion 41 (concave portion) having a U-shaped cross section, and a flange portion 42 extending from both ends of the U-shaped portion 41 toward the outer side in the left-right direction. Yes.
- the U-shaped portion 41 accommodates the bush 30 so as to cover, for example, the outer peripheral portion of the fan-shaped portion 32 of the bush 30 and the outer peripheral side surface portion of the rectangular portion 31, and the flange portion 42 is attached to the vehicle body side fixing member 51 such as a plate. It is fixed by fastening means 52 such as bolts.
- the vehicle body side fixing member 51 is disposed so as to be in contact with the bottom of the rectangular portion 31 exposed from the opening of the U-shaped portion 41.
- the volume of the bush 30 is not uniform in the circumferential direction of the torsion part 21 of the bar 20 inserted into the hole 30A. For this reason, when the bush 30 is attached to the vehicle body side fixing member 51 via the bracket 40, the surface pressure of the bonding surface (inner peripheral surface) of the hole 30A of the bush 30 with respect to the outer peripheral surface of the bar 20 may be uneven. There is. As a result, in the bush 30, the adhesive force is insufficient at the low surface pressure portion of the bonding surface of the hole 30 ⁇ / b> A, and the required bonding strength cannot be obtained.
- the present invention provides a technique capable of obtaining the required adhesive strength by equalizing the surface pressure at the adhesive surface of the hole portion of the bush in the adhesion of the bush to the stabilizer bar. It is aimed.
- the inventor examined the surface pressure on the bonding surface (inner peripheral surface) of the hole portion of the bush with respect to the stabilizer bar as follows.
- the length in the left-right direction of the opening of the U-shaped portion 41 of the bracket 40 in the vertical direction of the figure (corresponding to the vertical direction of the vehicle body).
- the length in the left-right direction of the bush 30 is A
- the length in the vertical direction of the bush 30 is (B + ⁇ )
- the tightening allowance ⁇ was provided only in the vertical direction.
- the bush 30 has, for example, a symmetrical shape, and the circular shape of the hole 30A is concentric with, for example, a circular shape including the fan-shaped portion 32.
- FIG. 4 shows the result of examining the contact pressure on the bonding surface of the hole 30A of the bush 30 when the above dimensional relationship is satisfied.
- 4 is a clockwise angle with respect to the upper end position of the hole 30A as shown in FIG. 3A, and 0 ° and 360 ° are the upper end position of the hole 30A. Show.
- the surface pressure shows the maximum value at the portion where the angle ⁇ is 0 ° (upper end portion) and the portion where the angle ⁇ is 180 ° (lower end portion).
- the surface pressure showed the lowest value at a portion of about 110 ° (right oblique lower portion) and a portion of about 250 ° (left oblique lower portion), and a large surface pressure difference was generated.
- the surface pressure difference is about 70%.
- the reason why such a large surface pressure difference is generated is that a portion having a large thickness with respect to the center of the hole 30A in the bush 30 (the right lower portion and the left lower portion) is the U-shaped portion 41 and the flange portion in the bracket 40. This is considered to be due to the flow toward the curved portion at the boundary with 42 (in the direction of the arrow in FIG. 3A).
- the surface pressure difference is defined as (surface pressure of the highest surface pressure part of the bonding surface (maximum surface pressure) ⁇ surface pressure of the lowest surface pressure part of the bonding surface (minimum surface pressure)) / (average of the surface pressure of the bonding surface) Value).
- the present inventor has completed the following first to fourth inventions in order to suppress the occurrence of a large surface pressure difference as shown in FIG. 4 on the bonding surface of the bushing hole.
- a stabilizer bush is a stabilizer bush that has a hole portion into which a bar of the stabilizer is inserted and is accommodated in a concave portion of the bracket so that the bar is bonded to the hole portion.
- the first arc portion is located on the side opposite to the opening side of the concave portion of the bracket and the second arc portion is located on the opening side of the concave portion of the bracket when the bar is bonded to the portion.
- the arc portion is an arc portion having an arc shape or a substantially arc shape, for example, or an elliptic arc portion having an ellipse arc shape or an approximately elliptic arc shape, for example.
- the center of the arc part is the center of the circle including the arc part in the case of the arc part, and the center of the ellipse including the elliptic arc part in the case of the elliptic arc part.
- the radius of curvature is defined as follows. For example, when the concave direction of the bracket recess is set to the upper side direction, the first arc part is located on the upper side and the second arc part is located on the lower side.
- the radius of curvature of the first arc portion is the radius of curvature at the top of the curve of the first arc portion
- the radius of curvature of the second arc portion is the radius of curvature at the bottom of the curve of the second arc portion.
- the shape of the bush hole is improved.
- the shape of the hole in order to prevent the surface pressure from becoming the lowest in the lower right and lower left corners of the hole as described above, the shape of the hole is set to be elliptical, for example, in the horizontal direction ( It is conceivable to set the length of the hole in a direction perpendicular to the concave direction of the bracket concave portion small. However, in this case, it is difficult to set the surface pressure difference sufficiently low.
- the first arc portion in the hole portion, the first arc portion is formed on the opposite side of the opening portion of the concave portion of the bracket used for bonding, and the second arc portion is formed on the opening side of the concave portion.
- the first arc portion is positioned on the upper side and the second arc portion is positioned on the lower side, the right diagonally lower portion and the left diagonal in which the surface pressure in the conventional example shown in FIG. Since the second arc part having a small radius of curvature is located in the part corresponding to the lower part, the length in the left-right direction of the hole part in that part becomes short. Thereby, the surface pressure of the part corresponding to the low surface pressure part of the hole of a prior art example can fully be raised.
- the centers of the first arc portion and the second arc portion are separated from each other, and the interval between the centers is set as appropriate, whereby the high surface of the hole portion of the conventional example shown in FIG. Since the surface pressure (surface pressure in the vertical direction) of the part corresponding to the pressure part can be adjusted as appropriate, the surface pressure difference can be set sufficiently low on the bonding surface of the hole of the bush. Thus, in the adhesion of the bush to the bar of the stabilizer, it is possible to make the surface pressure uniform on the adhesion surface of the hole portion of the bush, so that the necessary adhesion strength can be obtained. Compared with the following second invention, the first invention does not need to be provided with a rigid body portion, so that the cost can be reduced.
- the stabilizer bush of the first invention can have various configurations.
- a mode in which the ratio of the distance between the centers of the first arc portion and the second arc portion to the outer diameter of the bar is set to 2 to 7% can be used.
- the first arc part and the second arc part may be elliptical arc parts, and the hole part may have an oval shape.
- the stabilizer bush according to the second invention has a hole portion into which the stabilizer bar is inserted, and is a stabilizer bush that is received in the concave portion of the bracket and the bar is bonded to the hole portion, and has a rigid body portion,
- the hole has an oval shape, and when the bar is bonded to the hole, the rigid body portion is disposed on the opening side of the recess, and the major axis of the oval is located in a direction parallel to the recess direction of the recess of the bracket. It is characterized by that.
- a part of the bush is made rigid and the shape of the hole of the bush is improved. Specifically, since a rigid body portion is provided at the opening side portion of the concave portion of the bracket used at the time of bonding, the hole portion diagonally lower right and lower left as in the conventional example shown in FIG. The flow of the elastic material of the bush in the direction can be suppressed.
- the major axis of the elliptical shape of the hole is located in a direction parallel to the concave direction of the concave portion of the bracket (for example, the vertical direction), the minor axis of the elliptical shape is perpendicular to the direction (for example, tightening allowance).
- the horizontal length of the hole can be set smaller than the outer diameter of the stabilizer bar.
- the surface pressure difference can be set sufficiently low on the bonding surface of the hole.
- the stabilizer bush of the second invention can have various configurations.
- the ratio of the elliptical major axis of the hole to the outer diameter of the bar is set to 92 to 98%
- the ratio of the minor axis of the elliptical of the hole to the outer diameter of the bar is set to 80 to 90%.
- Embodiments can be used.
- a bonding tool is an bonding tool used when a stabilizer bar is bonded to a hole of a stabilizer bush, and includes a bush housing portion having a recess for housing the bush, and a recess of the bush housing portion.
- a plate portion that closes the opening, and the bush receiving portion is provided with a fastening margin in a direction perpendicular to the concave direction of the recess, and the plate portion presses the bush exposed from the opening of the recess of the bush receiving portion.
- It has a press part, and a press part protrudes in the concave direction of the recessed part of a bush accommodating part, and has a convex part which pushes the both ends of a bush toward a concave direction, It is characterized by the above-mentioned.
- the bonding tool includes a bush housing portion having a concave portion for housing the bush, and the opening portion of the concave portion is closed by the plate portion having the pressing portion.
- the bushing receiving portion is provided with a tightening margin in a direction perpendicular to the concave direction of the concave portion (for example, the left-right direction)
- the outer peripheral side surface portion of the bush faces the central portion in the left-right direction of the bushing by the bush receiving portion.
- the adhesive surface (inner peripheral surface) of the hole can press the outer peripheral surface of the stabilizer bar toward the central portion in the left-right direction.
- the convex portion of the pressing portion of the plate portion protrudes in the concave direction (upward direction) of the concave portion of the bush housing portion, and pushes both ends of the bush toward the concave direction (upward direction). It is possible to suppress the flow of the elastic material of the bush in the lower right direction and the left lower direction of the hole as in the conventional example shown in FIG.
- the high surface pressure portion of the hole portion of the conventional example is set.
- the surface pressure of the corresponding portion (surface pressure in the vertical direction) can be adjusted as appropriate, and the surface pressure of the portion corresponding to the low surface pressure portion of the hole of the conventional example can be sufficiently increased.
- the surface pressure difference can be set sufficiently low on the bonding surface of the bush hole. In this way, in the adhesion of the bush to the bar of the stabilizer using the bonding tool, the surface pressure at the bonding surface of the hole of the bush can be made uniform, so that the necessary bonding strength can be obtained.
- the conventional bush shown in FIG. 3A can be used as it is.
- the bonding method of the fourth invention is a bonding method using the bonding tool of the third invention. That is, the bonding method of the fourth invention is a bonding method using the bonding tool of the third invention, wherein the bush in which the stabilizer bar is inserted into the hole is received in the recess of the bush receiving portion, and the bush is received.
- the opening of the recessed portion is closed by the plate portion, the bush exposed from the opening of the recessed portion of the bush housing portion is pressed by the pressing portion of the plate portion, and both ends of the bush are directed in the concave direction by the protruding portion of the pressing portion. It is characterized by pushing.
- the bonding method of the fourth invention can obtain the same effect as the bonding tool of the third invention.
- the required adhesion strength can be obtained by equalizing the surface pressure of the inner peripheral surface of the hole of the bush.
- FIG. 1st invention It is a perspective view showing the structure of the stabilizer connected with the suspension apparatus of the vehicle. It is sectional drawing showing the structure of the bush for conventional stabilizers with which the bracket was mounted
- (A), (B) is sectional drawing showing the structure of the bush for stabilizers of 2nd Embodiment which concerns on this invention (2nd invention). It is a graph showing the surface pressure distribution of the adhesion surface (inner peripheral surface) of the hole of the bush for stabilizers of a 2nd embodiment concerning the present invention (the 2nd invention). It is sectional drawing showing the structure of the bonding tool of 3rd Embodiment which concerns on this invention (3rd, 4th invention), and showing the bonding tool of the state which accommodated the bush for stabilizers. It is a graph showing the surface pressure distribution of the adhesion surface (inner peripheral surface) of the hole of the bush for stabilizers with which the adhesion tool of a 3rd embodiment concerning the present invention (the 3rd and 4th invention) was equipped.
- the bushes (stabilizer bushes) of the first and second embodiments are attached to the torsion portion 21 of the stabilizer 10 instead of the bush 30 shown in FIGS. 1 to 3, for example.
- members and parts having the same configuration as in FIGS. 1 to 3 are denoted by the same reference numerals, and description thereof is omitted.
- the center O of FIGS. 5, 6 and 9 is set at the same position as the center O of the bush 30 shown in FIG. 3A, for example.
- 7, 10 and 12 is an angle in the clockwise direction with respect to the upper end position of the hole portion of each embodiment, and 0 ° and 360 ° indicate the upper end position of the hole portion.
- the surface pressure (surface pressure at each angular position of the bonding surface) and the surface pressure difference (surface pressure difference of the bonding surface) are determined by the bush with the bar inserted in the hole. Or it is the data in the state accommodated in the tool for adhesion
- FIG.5, 6 is sectional drawing showing the structure of the bush of 1st Embodiment which concerns on this invention (1st invention).
- the bush 100 has the same configuration as the bush 30 shown in FIG. 3A except that the shape of the hole is different.
- the bush 100 is made of, for example, an elastic material such as rubber.
- the horizontal length A, the vertical length (B + ⁇ ), and the shape of the outer peripheral portion are as shown in FIG. It is the same as that of the bush 30 shown.
- the hole 100A of the bush 100 has a first arc portion 101 formed on the upper side and a second arc portion 102 formed on the lower side.
- the first arc portion 101 and the second arc portion 102 are, for example, an arc portion having an arc shape or a substantially arc shape, or an elliptic arc portion having an elliptic arc shape or an approximately elliptic arc shape, for example.
- the second arc part 102 is preferably, for example, an elliptical arc part. In this case, it is preferable that the minor axis of the elliptical arc part is located in the left-right direction.
- the shape of the hole 100A may be a shape connected by a common tangent line between the first arc portion 101 and the second arc portion 102.
- the centers O1 and O2 of the arc portions 101 and 102 are a circular center including an arc portion in the case of an arc portion, and an elliptic center including an elliptic arc portion in the case of an elliptic arc portion.
- the radius of curvature r1 of the first arc portion 101 is the radius of curvature at the uppermost point of the curve of the first arc portion 101
- the radius of curvature of the second arc portion 102 is the radius of curvature at the lowest point of the curve of the second arc portion 102. is there.
- the first arc portion 101 and the second arc portion 102 are arc portions. In a portion between the first arc portion 101 and the second arc portion 102, for example, the first arc portion 101 and the second arc portion 102 are connected by a common tangent.
- the first arc portion 101 and the second arc portion 102 are elliptical arc portions. In this case, the hole 100A preferably has an oval shape.
- the center O1 of the first arc portion 101 and the center O2 of the second arc portion 102 are located on a center line passing through the center in the left-right direction of the bush 100, for example, and are separated from each other in the up-down direction.
- the curvature radius r2 of the second arc portion 102 is set smaller than the curvature radius r1 of the first arc portion 101.
- the bush 100 in which the torsion part 21 is inserted into the hole part 100 ⁇ / b> A is accommodated in the U-shaped part 41 of the bracket 40.
- the first arc portion 101 is located on the side opposite to the opening side of the U-shaped portion 41 (concave portion), and the second arc portion 102 is located on the opening side of the U-shaped portion 41.
- a plate (not shown) is provided so as to close the opening of the U-shaped portion 41 of the bracket 40, and the plate is fixed to the flange portion 42 of the bracket 40.
- the bush 100 accommodated in the bracket 40 is placed in the adhesive curing device, and the adhesive is cured. Thereby, the torsion part 21 of the bar 20 is bonded to the hole part 100 ⁇ / b> A of the bush 100.
- the first arc portion 101 is formed on the opposite side of the opening portion of the U-shaped portion 41 of the bracket 40 used for bonding, and the second arc is formed on the opening portion side of the U-shaped portion 41.
- Part 102 is formed.
- the surface pressure of the part (2nd arc part 102) corresponding to the low surface pressure part of the hole of a prior art example can fully be raised.
- the centers O1 and O2 of the first arc portion 101 and the second arc portion 102 are separated from each other, and the interval t between the centers O1 and O2 is set as appropriate, so that FIG. Since the surface pressure (surface pressure in the vertical direction) of the portion corresponding to the high surface pressure portion of the hole portion of the conventional example shown in FIG. Can be set low.
- the surface pressure is greatly reduced in the portion where the angle ⁇ is about 110 ° and about 250 °. Unlike the conventional example, the occurrence of a surface pressure difference can be effectively suppressed.
- the surface pressure at the adhesion surface of the hole 100A of the bush 100 can be made uniform, so that the necessary adhesion strength can be obtained.
- the relationship between the distance t between the centers O1 and O2 and the surface pressure difference at the bonding surface (inner peripheral surface) of the hole portion of the bush is as shown in FIG.
- FIGS. 9A and 9B are cross-sectional views showing the configuration of a bush according to a second embodiment of the present invention (second invention).
- the bush 200 includes an elastic body portion 201 made of an elastic material such as rubber, and a rigid body portion 202 having higher rigidity than the elastic body portion 201.
- the rigid portion 202 is made of, for example, a metal part or a resin part.
- the hole 200A of the bush 200 has an elliptical shape.
- the major axis of the ellipse is positioned, for example, in the vertical direction, and the minor axis of the ellipse is positioned, for example, in the left-right direction.
- the rigid portion 202 is provided below the center portion O of the hole 200A.
- the rigid body portion 202 has a concave portion whose upper surface has a semicircular cross section, and the elastic body portion 201 has a circular cross section (for example, a perfect circular shape or a perfectly circular cross section),
- the upper half of the circle forms a part of the outer periphery of the bush 200, and the lower half of the circle is fitted in the recess of the rigid body 202.
- the rigid body portion 202 has a shape divided into left and right. In the bush 200, for example, the length A in the left-right direction, the length in the vertical direction (B + ⁇ ), and the shape of the outer peripheral portion are the same as those of the bush 30 shown in FIG.
- the adhesion process of the bar 10 of the stabilizer 10 to the hole 200A is performed in the same procedure as the adhesion process of the first embodiment.
- the rigid body portion 202 of the bush 200 is disposed on the opening side of the U-shaped portion 41, and the elliptical long axis of the hole 200A is the bracket. It is located in a direction (vertical direction) parallel to the concave direction of the U-shaped portion 41.
- the hole portion 202 is provided at the opening side portion of the U-shaped portion 41 of the bracket 40 used at the time of bonding, the hole portion diagonally right like the conventional example shown in FIG. It is possible to suppress the flow of the elastic material of the bush in the downward direction and the diagonally downward left direction.
- the major axis of the elliptical shape of the hole 200A is located in a direction (vertical direction) parallel to the concave direction of the U-shaped part 41, the minor axis of the elliptical shape is perpendicular to the direction (for example, tightening).
- the horizontal length of the hole 200 ⁇ / b> A can be set smaller than the outer diameter R of the bar 20 of the stabilizer 10.
- the surface pressure of the portion corresponding to the low surface pressure portion of the hole portion of the conventional example can be sufficiently increased, and the bonding surface of the hole portion 200A of the bush 200
- the surface pressure difference can be set sufficiently low.
- the surface pressure is greatly reduced at the portions where the angle ⁇ is about 110 ° and about 250 °.
- the surface pressure difference is 30% or less (17% in the example of FIG. 10), and the occurrence of the surface pressure difference can be effectively suppressed.
- the surface pressure at the adhesion surface of the hole 200A of the bush 200 can be made uniform, so that the necessary adhesion strength can be obtained.
- the ratio (D1 / R) of the elliptical major axis D1 of the hole 200A to the outer diameter R of the bar 20 is set to 92 to 98%, and the elliptical minor axis of the hole 200A to the outer diameter R of the bar 20 is set.
- the ratio of D2 (D2 / R) is set to 80 to 90%, the surface pressure difference at the bonding surface (inner peripheral surface) of the hole 200A can be set to 30% or less.
- FIG. 11 is a cross-sectional view showing the configuration of a bonding tool according to a third embodiment of the present invention (third and fourth inventions), and showing a bonding tool in a state in which a stabilizer bush is accommodated. It is.
- the bonding tool 300 includes a bush accommodating portion 301 and a plate portion 302.
- the bush accommodating portion 301 has a shape corresponding to the bracket 40 and has the same shape as the bracket 40 except that a fastening allowance ⁇ is provided in the left-right direction (a direction orthogonal to the concave direction of the concave portion of the bush accommodating portion 301).
- the bush accommodating portion 301 has a concave portion having a U-shaped cross section, and accommodates, for example, the bush 30 shown in FIG.
- a flange portion extending outward in the left-right direction is formed at both ends of the recess of the bush housing portion 301.
- the plate portion 302 includes a pressing portion 303 that presses the bottom portion of the bush 30 exposed from the opening of the concave portion of the bush housing portion 301.
- convex portions 303A protruding upward are formed.
- the protrusion amount ⁇ of the convex portion 303A into the concave portion of the bush housing portion 301 can be set as appropriate.
- Such a cross-sectional shape of the upper surface portion of the pressing portion 303 is, for example, an arc shape in which both end portions protrude and the central portion is recessed.
- the bonding process of the stabilizer 10 to the hole 30A of the bar 20 is performed in the same procedure as the bonding process of the first embodiment, except that the bonding tool 300 is used instead of the bracket 40.
- the bonding tool 300 is used instead of the bracket 40.
- the assembly work of the bush 30 to the bonding tool 300 first, the bush 30 in which the bar 20 of the stabilizer 10 is inserted into the hole 30 ⁇ / b> A is accommodated in the recess of the bush accommodating portion 301.
- the opening of the concave portion of the bush accommodating portion 301 in which the bush 30 is accommodated is closed by the plate portion 302.
- the bush 30 exposed from the opening of the concave portion of the bush accommodating portion 301 is pressed by the pressing portion 303 of the plate portion 302, and both ends of the bottom of the bush 30 are pressed by the convex portion 303 A of the pressing portion 303. Push toward the inside of the recess.
- the bush receiving portion 301 of the bonding tool 300 is provided with a tightening margin ⁇ in a direction orthogonal to the concave direction of the concave portion (for example, the left-right direction).
- the portion 301 is pressed toward the central portion in the left-right direction of the bush 30, and the bonding surface (inner peripheral surface) of the hole 30 ⁇ / b> A can press the outer peripheral surface of the bar 20 of the stabilizer 10 toward the central portion in the left-right direction. .
- the hole portion of the conventional example The surface pressure of the portion corresponding to the high surface pressure portion (surface pressure in the vertical direction) can be adjusted as appropriate, and the surface pressure of the portion corresponding to the low surface pressure portion of the hole of the conventional example is sufficiently increased Therefore, the surface pressure difference can be set sufficiently low on the bonding surface of the hole 30A of the bush 30.
- the surface pressure at the bonding surface of the hole 30A of the bush 30 can be made uniform, so that the necessary bonding strength is required. Can be obtained.
- the conventional bush 30 shown in FIG. 3A can be used as it is.
- the ratio of the interference allowance ⁇ to the length A in the left-right direction is set to 0 to 20%, and the control on the inner diameter side is also set, and the surface pressure difference at the bonding surface (inner peripheral surface) of the hole 30A is set to 30% or less can do.
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Abstract
Description
20…バー
21…トーション部
30…ブシュ
30A…孔部
40…ブラケット
41…U字形部(凹部)
42…フランジ部
100,200…ブシュ(スタビライザ用ブシュ)
100A,200A…孔部
101…第1弧部
102…第2弧部
201…弾性体部
202…剛体部
300…接着用工具
301…ブシュ収容部
302…プレート部
303…押圧部
303A…凸部
O…中心(孔部の中心)
O1,O2…中心(弧部の中心)
r1,r2…曲率半径
t…中心同士の間隔(オフセット量)
α…締め代(上下方向の締め代)
β…締め代(左右方向の締め代)
γ…突出量(凸部の突出量)
図5,6は、本発明(第1発明)に係る第1実施形態のブシュの構成を表す断面図である。ブシュ100は、図3(A)に示すブシュ30とは、孔部の形状が異なる以外は、同様の構成を有している。具体的には、ブシュ100は、たとえばゴム等の弾性材料からなり、ブシュ100では、たとえば左右方向長さA、上下方向長さ(B+α)、および、外周部の形状は図3(A)に示すブシュ30のものと同様である。
図9(A),(B)は、本発明(第2発明)に係る第2実施形態のブシュの構成を表す断面図である。ブシュ200は、たとえばゴム等の弾性材料からなる弾性体部201と、弾性体部201よりも高い剛性を有する剛体部202を有している。剛体部202は、たとえば金属部品や樹脂部品からなる。ブシュ200の孔部200Aは楕円形をなしている。楕円形の長軸は、たとえば上下方向に位置し、楕円形の短軸はたとえば左右方向に位置している。剛体部202は、孔部200Aの中心部Oよりも下側に設けられている。
図11は、本発明(第3,4発明)に係る第3実施形態の接着用工具の構成を表し、スタビライザ用ブシュを収容した状態の接着用工具を表す断面図である。接着用工具300は、ブシュ収容部301およびプレート部302を備えている。ブシュ収容部301は、ブラケット40に対応する形状をなし、左右方向(ブシュ収容部301の凹部の凹方向に直交する方向)に締め代βが設けられている以外は、ブラケット40と同様な形状を有する。
Claims (7)
- スタビライザのバーが挿入される孔部を有するとともに、ブラケットの凹部に収容されて前記バーが前記孔部に接着されるスタビライザ用ブシュにおいて、
前記孔部は、第1弧部および第2弧部を有し、
前記第1弧部と前記第2弧部の中心同士は離間し、
前記第2弧部の曲率半径は、前記第1弧部の曲率半径よりも小さく設定され、
前記孔部への前記バーの接着時、前記第1弧部は、前記ブラケットの前記凹部の開口部側とは反対側に位置し、前記第2弧部は、前記ブラケットの前記凹部の開口部側に位置することを特徴とするスタビライザ用ブシュ。 - 前記第1弧部と前記第2弧部の中心同士の間隔の前記バーの外径に対する割合は2~7%に設定されていることを特徴とする請求項1に記載のスタビライザ用ブシュ。
- 前記第1弧部および前記第2弧部は楕円弧部であり、前記孔部は卵形をなすことを特徴とする請求項1または2に記載のスタビライザ用ブシュ。
- スタビライザのバーが挿入される孔部を有するとともに、ブラケットの凹部に収容されて前記バーが前記孔部に接着されるスタビライザ用ブシュにおいて、
剛体部を有し、
前記孔部は楕円形をなし、
前記孔部への前記バーの接着時、前記剛体部は、前記凹部の開口部側に配置され、前記楕円形の長軸は、前記ブラケットの前記凹部の凹方向に平行な方向に位置することを特徴とするスタビライザ用ブシュ。 - 前記バーの外径に対する前記孔部の前記楕円形の長径の割合は92~98%に設定され、前記バーの外径に対する前記孔部の前記楕円形の短径の割合は80~90%に設定されていることを特徴とする請求項4に記載のスタビライザ用ブシュ。
- スタビライザ用ブシュの孔部へのスタビライザのバーの接着時に用いられる接着用工具において、
前記ブシュを収容する凹部を有するブシュ収容部と、
前記ブシュ収容部の前記凹部の開口部を閉塞するプレート部とを備え、
前記ブシュ収容部では、前記凹部の凹方向に垂直な方向に締め代が設けられ、
前記プレート部は、前記ブシュ収容部の前記凹部の前記開口部から露出する前記ブシュを押圧する押圧部を有し、
前記押圧部は、前記ブシュ収容部の凹部の凹方向に突出して、前記ブシュの両端部を前記凹方向に向かって押し込む凸部を有することを特徴とする接着用工具。 - 請求項6に記載の接着用工具を用いる接着方法において、
前記スタビライザの前記バーが前記孔部に挿入された前記ブシュを前記ブシュ収容部の前記凹部に収容し、
前記ブシュが収容された前記凹部の前記開口部を前記プレート部により閉塞し、
前記ブシュ収容部の前記凹部の前記開口部から露出する前記ブシュを前記プレート部の前記押圧部により押圧し、前記押圧部の前記凸部により前記ブシュの両端部を前記凹方向に向かって押し込むことを特徴とする接着方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/437,856 US10052929B2 (en) | 2012-10-26 | 2013-10-17 | Bush for stabilizer, fastening tool, and fastening method |
ES13849085T ES2746111T3 (es) | 2012-10-26 | 2013-10-17 | Casquillo para estabilizador y método de fijación |
CN201380055746.6A CN104755287B (zh) | 2012-10-26 | 2013-10-17 | 稳定器用衬套、粘接用工具及粘接方法 |
KR1020157012006A KR102072142B1 (ko) | 2012-10-26 | 2013-10-17 | 스태빌라이저용 부시, 접착용 공구, 및, 접착 방법 |
EP13849085.9A EP2913210B1 (en) | 2012-10-26 | 2013-10-17 | Bush for stabilizer and fastening method |
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JP2012-236596 | 2012-10-26 | ||
JP2012236596A JP5988488B2 (ja) | 2012-10-26 | 2012-10-26 | スタビライザ用ブシュ、接着用治具、および、接着方法 |
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WO2014065186A1 true WO2014065186A1 (ja) | 2014-05-01 |
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EP (1) | EP2913210B1 (ja) |
JP (1) | JP5988488B2 (ja) |
KR (1) | KR102072142B1 (ja) |
CN (1) | CN104755287B (ja) |
ES (1) | ES2746111T3 (ja) |
HU (1) | HUE045186T2 (ja) |
WO (1) | WO2014065186A1 (ja) |
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JP6347226B2 (ja) | 2015-04-16 | 2018-06-27 | トヨタ自動車株式会社 | スタビライザバー取付装置、スタビライザバー取付用ブラケット |
US9718325B2 (en) * | 2015-08-27 | 2017-08-01 | GM Global Technology Operations LLC | Lateral stabilization assembly |
JP6797922B2 (ja) * | 2016-08-03 | 2020-12-09 | 日本発條株式会社 | 車両用ばねの製造方法 |
CN106217751A (zh) * | 2016-08-04 | 2016-12-14 | 安徽润康橡塑科技有限公司 | 一种汽车横向稳定杆与稳定杆衬套粘合技术 |
JP2018079752A (ja) * | 2016-11-15 | 2018-05-24 | 東洋ゴム工業株式会社 | スタビライザブッシュ |
JP6824704B2 (ja) * | 2016-11-16 | 2021-02-03 | Toyo Tire株式会社 | スタビライザブッシュ |
JP6823642B2 (ja) * | 2016-12-15 | 2021-02-03 | 住友理工株式会社 | 筒形防振装置 |
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Publication number | Publication date |
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US10052929B2 (en) | 2018-08-21 |
KR20150075095A (ko) | 2015-07-02 |
CN104755287A (zh) | 2015-07-01 |
HUE045186T2 (hu) | 2019-12-30 |
KR102072142B1 (ko) | 2020-01-31 |
EP2913210A1 (en) | 2015-09-02 |
EP2913210B1 (en) | 2019-06-19 |
ES2746111T3 (es) | 2020-03-04 |
EP2913210A4 (en) | 2016-08-10 |
CN104755287B (zh) | 2017-07-18 |
JP2014084061A (ja) | 2014-05-12 |
US20150239319A1 (en) | 2015-08-27 |
JP5988488B2 (ja) | 2016-09-07 |
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