US20160303938A1 - Bracket - Google Patents
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- Publication number
- US20160303938A1 US20160303938A1 US15/051,159 US201615051159A US2016303938A1 US 20160303938 A1 US20160303938 A1 US 20160303938A1 US 201615051159 A US201615051159 A US 201615051159A US 2016303938 A1 US2016303938 A1 US 2016303938A1
- Authority
- US
- United States
- Prior art keywords
- portions
- bushing
- pair
- bracket
- stabilizer bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000003381 stabilizer Substances 0.000 claims abstract description 63
- 230000007423 decrease Effects 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- 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
- 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
-
- 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
Definitions
- the following disclosure relates to a bracket used for mounting of a stabilizer bar on a vehicle body via a bushing.
- Patent Documents 1-4 disclose stabilizer-bar mounting devices (hereinafter simply referred to as “bar mounting devices”) including: a bushing for holding a stabilizer bar; and a bracket used for mounting of the bushing on a vehicle-body-side component.
- Patent Document 1 Japanese Patent Application Publication No. 2014-210534 discloses a bar mounting device including (i) a bushing (see FIGS. 5 and 7 ) having a protruding portions formed on a pair of side surfaces of the bushing and (ii) a bracket having a flange portion and a recessed portion for accommodating the bushing.
- the bushing has interferences in an up and down direction and a front and rear direction of a vehicle.
- Patent Document 1 also discloses a bar mounting device that includes a bracket (see FIG. 9 ) having a gradually-broaden guide portion formed in an opening of a recessed portion of the bushing. In this bar mounting device, the bushing can be easily inserted into the recessed portion in mounting.
- Patent Document 2 Japanese Patent Application Publication No. 2014-084061 discloses a bar mounting device including a bushing having a through hole in which a stabilizer bar is to be inserted, and the through hole has a lower small-diameter portion and an upper large-diameter portion. Since the lower portion of the through hole has a small diameter, it is possible to well reduce lowering of surface pressures acting on a lower portion of the stabilizer bar, leading to uniform surface pressures.
- Patent Document 2 also discloses a bar mounting device including a rigid component (see FIG. 11 ) provided between the bushing and a vehicle body. This rigid component suppresses a downward flow of an elastic material of the bushing, making it possible to reduce lowering of the surface pressures acting on the lower portion of the stabilizer bar.
- Patent Document 3 Japanese Patent Application Publication No. 2013-060196 discloses a bar mounting device including: a bushing; flange portions respectively provided at opposite end portions of the bushing in its axial direction; and a bracket (see FIG. 9 ) to be fitted between these flange portions. This construction reduces relative movement of the bushing and the bracket in the axial direction.
- Patent Document 4 Japanese Patent Application Publication No. 2008-2077078 discloses a bar mounting device including a bushing that includes: a protruding portion provided at an intermediate portion of the bushing in its axial direction; and a stopper provided on one end portion of the bushing. A bracket is mounted in a state in which the bracket is held in contact with the stopper and fitted on the protruding portion of the bushing.
- an aspect of the disclosure relates to a bracket capable of achieving uniform surface pressures acting on a stabilizer bar.
- a bracket in one aspect of the disclosure, includes a narrowed portion provided at a position nearer to an opening than an intermediate portion of a recessed portion for accommodating a bushing.
- FIG. 9 in the present application illustrates one example of a conventional bar mounting device.
- the bar mounting device includes (i) a cylindrical bushing 102 having a generally semicircular shape in cross section and having a central portion formed with a through hole 100 and (ii) a bracket 108 having (a) a recessed portion 104 for accommodating the bushing 102 and (b) a pair of flange portions 106 respectively provided on opposite sides of the recessed portion 104 .
- the stabilizer bar is mounted on a vehicle-body-side component 110 by securing the pair of flange portions 106 to vehicle-body-side component 110 in a state in which the stabilizer bar is inserted in the through hole 100 of the bushing 102 , and the bushing 102 is accommodated in the recessed portion 104 of the bracket 108 .
- a direction of a normal line n to a mounting surface of the vehicle-body-side component 110 coincides with an up and down direction of a vehicle.
- a direction parallel with an axis p of the stabilizer bar coincides with a widthwise direction of the vehicle.
- a direction perpendicular to the up and down direction and the widthwise direction coincides with a front and rear direction or a longitudinal direction of the vehicle.
- the bushing 102 has upper and lower interferences.
- a large surface pressure is applied to the stabilizer bar in the up and down direction in the state in which the stabilizer bar is mounted on the vehicle-body-side component 110 .
- the bushing 102 is compressed at its upper portion by the recessed portion 104 of the bracket 108 but is compressed at its lower portion by the mounting surface (i.e., a flat surface) of the vehicle-body-side component 110 .
- a surface pressure applied to an upper portion of the stabilizer bar differs from a surface pressure applied to a lower portion of the stabilizer bar.
- small surface pressures fa, fb are respectively applied to portions A of the lower portion of the stabilizer bar which are enclosed by one-dot chain lines in FIG. 9 . Accordingly, in the case where the stabilizer bar is bonded to the bushing 102 , adhesiveness of the stabilizer bar and the bushing 102 lowers. In the case where the stabilizer bar and the bushing 102 are not bonded to each other, the through hole 100 is more easily opened.
- a bracket comprising:
- a mount portion to be mounted on a vehicle-body-side component, on which a stabilizer bar is to be mounted via the bushing
- the recessed portion comprises a pair of opposed portions opposed to each other
- the pair of opposed portions comprise an intermediate portion and a portion nearer to an opening than the intermediate portion, and a distance between the pair of opposed portions is less at the portion nearer to the opening than at the intermediate portion.
- the portion of the pair of opposed portions which is nearer to the opening than the intermediate portion has a portion at which the distance between the pair of opposed portions is less than that at the intermediate portion.
- a narrowed portion is constituted by at least a portion of the portion at which the distance between the pair of opposed portions is less than that at the intermediate portion.
- each of the pair of opposed portions is shaped so as to be bent inwardly between the intermediate portion and an open end of the recessed portion.
- pair of opposed portions respectively comprise a pair of inwardly inclined portions at the portion nearer to the opening than the intermediate portion
- the distance between the inwardly inclined portions may decrease in a curved fashion and may decrease linearly.
- the pair of outwardly inclined portions define the shape of the opening of the recessed portion to a gradually broaden shape, in other words, a tapered shape. This shape allows the bushing to be easily inserted into the recessed portion of the bracket.
- a pair of inwardly protruding portions each protruding to the most inward position are formed between the pair of inwardly inclined portions and the pair of outwardly inclined portions.
- the narrowed portion is constituted by the pair of inwardly protruding portions and at least a portion of the inwardly inclined portions (which includes a portion of the inwardly inclined portions near the inwardly protruding portions), for example.
- the narrowed portion is preferably provided at a position nearer to the vehicle-body-side component than a line of intersection of each of the pair of opposed portions and a plane containing the diameter of the stabilizer bar.
- the narrowed portion is more preferably provided near a line of intersection of each of the pair of opposed portions and a tangent plane to the stabilizer bar near the vehicle-body-side component (in other words, the narrowed portion is more preferably provided within a set range containing the line of intersection of each of the pair of opposed portions and the tangent plane).
- the narrowed portion is more preferably provided at a position nearer to the vehicle-body-side component than the line of intersection.
- the bushing can be well compressed by the flat plate portions.
- a stabilizer-bar mounting device comprising:
- the bushing is a cylindrical member comprising a through hole extending in an axial direction of the bushing
- the bushing comprises: a pair of side surfaces opposed to each other; and a pair of recessed portions formed near a line of intersection of each of the pair of side surfaces and a tangent plane to the through hole.
- the pair of recessed portions opposed to the narrowed portion of the bracket have a cross-sectional shape which is generally formed by cutting out portions of the pair of side surfaces of the bushing.
- the recessed portion is preferably provided at a position nearer to a vehicle-body-side component than a line of intersection of each of the pair of side surfaces and a plane containing the diameter of the through hole.
- the recessed portion is more preferably provided near the line of intersection of each of the pair of side surfaces and the tangent plane to the through hole (in other words, within a set range containing the line of intersection) or provided at a position farther from the through hole than the line of intersection.
- a bushing as a cylindrical member, comprising:
- pair of recessed portions are formed within a set range containing a line of intersection of each of the pair of side surfaces and a tangent plane to the through hole.
- the present bushing is suitable for use with the bracket according to any one of the forms (1) through (6).
- FIG. 1 is a perspective view illustrating a situation in which a stabilizer bar is mounted on a vehicle body via a bushing by a bar mounting device including a bracket according to a first embodiment
- FIG. 2 is a plan view of the bracket
- FIG. 3 is a cross-sectional of the bracket ( FIG. 3 is a cross-sectional view taken along line in FIG. 2 );
- FIG. 4 is a cross-sectional view of the bushing of the bar mounting device
- FIG. 5 is a view for explaining mounting of the stabilizer bar in the bar mounting device
- FIG. 6 is a cross-sectional view of the bar mounting device
- FIG. 7 is a plan view of a bar mounting device according to a bracket according to a second embodiment.
- FIG. 8 is a cross-sectional view of the bar mounting device ( FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7 );
- FIG. 9 is a cross-sectional view of a conventional bar mounting device.
- the stabilizer-bar mounting device (hereinafter simply referred to as “bar mounting device”) 1 is used for mounting a stabilizer bar 2 onto a vehicle-body-side component 4 , e.g., a suspension member, on a torsion bar.
- the bar mounting device 1 includes a bracket 6 according to one embodiment, and a bushing 8 .
- the bracket 6 includes a recessed portion 10 and a pair of flange portions 12 a, 12 b which are formed on opposite sides of the recessed portion 10 as mount portions.
- the bracket 6 may have a cross-sectional shape which is generally formed by bending a metal plate.
- the flange portions 12 a, 12 b respectively have mounting holes 14 a, 14 b and are mounted on a vehicle-body-side component 4 by a fastening device 16 which may include bolts and nuts, for example.
- a direction parallel with an axis p of the stabilizer bar 2 is defined as an X direction (hereinafter may be referred to as “axial direction”).
- a direction parallel with a normal line n to a mounting surface 4 f of the vehicle-body-side component 4 is defined as a Z direction.
- a direction perpendicular to the X direction and the Z direction is defined as “Y direction”.
- the X direction coincides with a widthwise direction of a vehicle, but each of the Y direction and the Z direction is determined depending upon a direction of the normal line n to the mounting surface 4 f of the vehicle-body-side component 4 .
- the stabilizer bar 2 is mounted by the bar mounting device 1 in a state in which the Y direction coincides with a front and rear direction or a longitudinal direction of the vehicle, and the Z direction coincides with an up and down direction.
- the bracket 6 has a generally “ ⁇ .” shape in cross section.
- the recessed portion 10 includes a pair of opposed portions 20 a, 20 h which are opposed to each other. A distance between the pair of opposed portions 20 a, 20 b is increased in a curved fashion from the top of the bracket 6 toward the flange portions 12 a, 12 b, then kept constant, then decreased, and finally increased.
- Portions of the pair of opposed portions 20 a, 20 b with the constant distance correspond to flat plate portions 21 a, 21 b. Portions of the pair of opposed portions 20 a, 20 b which include the flat plate portions 21 a, 21 b constitute intermediate portions 22 a, 22 b, for example.
- the flat plate portions 21 a, 21 b have a size, e.g., a length He in FIG. 3 , capable of compressing the bushing 8 well as will be described below.
- Portions of the pair of opposed portions 20 a, 20 b with the decreasing distance correspond to a pair of inwardly inclined portions 24 a, 24 b. Portions of the pair of opposed portions 20 a, 20 b with the increasing distance correspond to a pair of outwardly inclined portions 25 a, 25 b.
- a pair of inwardly protruding portions 26 a, 26 b are formed between the pair of inwardly inclined portions 24 a, 24 b and the pair of outwardly inclined portions 25 a, 25 b.
- the outwardly inclined portions 25 a, 25 b are straight portions, and a distance therebetween changes continuously.
- portions 27 a, 27 b nearer to an opening than the intermediate portions are constituted by the pair of inwardly inclined portions 24 a, 24 b, the pair of inwardly protruding portions 26 a, 26 b, and the pair of outwardly inclined portions 25 a, 25 b, for example.
- the pair of inwardly inclined portions 24 a, 24 b and the pair of inwardly protruding portions 26 a, 26 b correspond to “portions with a distance therebetween which is less than the distance between the intermediate portions”.
- portions with a distance therebetween which is less than that between the intermediate portions correspond to narrowed portions 28 .
- a distance Ls between the pair of inwardly protruding portions 26 a, 26 b is less than a distance Lh between the pair of flat plate portions 21 a, 21 b (Ls ⁇ Lh).
- the distance Ls between the pair of inwardly protruding portions 26 a, 26 b may be hereinafter referred to as “distance Ls between the narrowed portions”.
- the distance Lh between the pair of flat plate portions 21 a, 21 b may be hereinafter referred to as “distance Lh between the flat plate portions”.
- the distance between the pair of outwardly inclined portions 25 a, 25 b is greatest at connectors 29 a, 29 b each connecting the recessed portion 10 and a corresponding one of the flange portions 12 a, 12 b to each other (noted that the connectors 29 a, 29 b may be referred to as “open ends of the recessed portion 10 ”).
- the distance Lm between the open ends 29 a, 29 b is greater than the distance Ls between the narrowed portions (Lm>Ls).
- the distance Lm between the open ends 29 a, 29 b may be greater or less than the distance Lh between the intermediate portions 22 a, 22 b. It is noted that the height H of the bracket 6 in the up and down direction is greater than the distance Lh between the flat plate portions (H>Lh) in order to make the volume of the bushing 8 larger in the up and down direction than in the front and rear direction.
- the bushing 8 is a cylindrical member formed of an elastic material such as rubber. As illustrated in FIG. 4 , the bushing 8 has a through hole 30 in which the stabilizer bar 2 is to be inserted.
- the bushing 8 has a cross-sectional shape which is generally formed by cutting out a portion of an oval shape. In other words, the bushing 8 includes a wide portion 31 and a narrow portion 32 .
- the bushing 8 has a pair of side surfaces 33 a, 33 b which are opposed to each other. Each of the pair of side surfaces 33 a, 33 b in the wide portion 31 is curved so as to protrude outward.
- the bushing 8 has intermediate portions 35 a, 35 b which respectively protrude to opposite outermost positions in the Y direction.
- the bushing 8 has the greatest width at the intermediate portions 35 a, 35 b.
- the bushing 8 further has width decreasing portions 36 a, 36 b between the wide portion 31 and the narrow portion 32 . The distance or width between the pair of side surfaces 33 a, 33 b gradually decreases at the width decreasing portions 36 a, 36 b.
- the bushing 8 further has recessed portions 38 a, 38 b each constituted by, e.g., a portion of the bushing 8 which contains a line of intersection of the narrow portion 32 and a corresponding one of the width decreasing portions 36 a, 36 b. As illustrated in FIG. 4 , each of the recessed portions 38 a, 38 b is provided near a line of intersection of a tangent plane s to the through hole 30 and a corresponding one of the pair of side surfaces 33 a, 33 b.
- Each of the recessed portions 38 a, 38 b may be provided between (i) a line of intersection of a corresponding one of the pair of side surfaces 33 a, 33 b and a plane d containing the diameter of the through hole 30 and (ii) a line of intersection of the tangent plane s and the corresponding one of the pair of side surfaces 33 a, 33 b.
- Each of the recessed portions 3 8 a, 3 8 b may also be provided near the line of intersection of the tangent plane s and the corresponding one of the pair of side surfaces 33 a, 33 b (that is, each of the recessed portions 38 a, 38 b may be provided within a set range determined by the line of intersection) and may be provided at a position located farther from the through hole 30 than the line of intersection of the tangent plane s and the corresponding one of the pair of side surfaces 33 a, 33 b, for example.
- each of the recessed portions 38 a, 38 b is provided within a set range containing the line of intersection of the tangent plane s and the corresponding one of the pair of side surfaces 33 a, 33 b. It is noted that a bottom surface 39 of the narrow portion 32 is curved such that a central portion of the bottom surface 39 protrudes outward.
- the bushing 8 is accommodated in the recessed portion 10 of the bracket 6 in a state in which a direction of a major axis of the bushing 8 coincides with the up and down direction, and a widthwise direction of the bushing 8 (i.e., a direction of a minor axis of the bushing 8 ) coincides with the front and rear direction. Since a length Lbv of the bushing 8 in its major axis direction is greater than the height H of the bracket 6 (Lbv>H), the bushing 8 has interferences Aa, Ab (see FIG. 6 ) in the up and down direction.
- the bushing 8 Since a width Lbh between the intermediate portions 35 a, 35 b of the bushing 8 is greater than the distance Lh between the flat plate portions of the bracket 6 (Lbh>Lh), the bushing 8 has interferences Ac, Ad in the front and rear direction.
- each of the interferences Ac, Ad in the front and rear direction is less than each of the interferences Aa, Ab in the up and down direction.
- a relative positional relationship between the bushing 8 and the bracket 6 is determined in advance in a state in which the bushing 8 is mounted on the vehicle-body-side component 4 by the bracket 6 .
- the width decreasing portions 36 a, 36 b and the recessed portions 38 a, 38 b of the bushing 8 are respectively opposed to the inwardly inclined portions 24 a, 24 b and the inwardly protruding portions 26 a, 26 b of the bracket 6 .
- the intermediate portions 35 a, 35 b of the bushing 8 are respectively opposed to the flat plate portions 21 a, 21 b of the bracket 6 .
- the stabilizer bar 2 is mounted onto the vehicle-body-side component 4 by the bar mounting device 1 .
- the stabilizer bar 2 is in advance inserted in the through hole 30 of the bushing 8 and bonded to the bushing 8 .
- the bracket 6 is brought closer to the vehicle-body-side component 4 toward the bushing 8 to which the stabilizer bar 2 is bonded, along the arrow in FIG. 5 , i.e., in a direction substantially parallel to the normal line n to the mounting surface 4 f of the vehicle-body-side component 4 , and then the bushing 8 is inserted into the recessed portion 10 of the bracket 6 .
- the bushing 8 can be easily inserted into the recessed portion 10 . As illustrated in FIG. 1 , the flange portions 12 a, 12 b of the bracket 6 are then secured to the vehicle-body-side component 4 by the fastening device 16 .
- the bushing 8 is elastically deformed or compressed by, e.g., the bracket 6 and the vehicle-body-side component 4 .
- the bushing 8 has the interferences not only in the up and down direction but also in the front and rear direction, thereby applying surface pressures to the stabilizer bar 2 not only in the up and down direction but also in the front and rear direction. Also, the narrowed portions 28 of the bracket 6 compress the bushing 8 toward the stabilizer bar 2 , in other words, in directions indicated by arrows F 1 , F 2 in FIG. 6 , thereby applying surface pressures to a portion R of a lower portion of the stabilizer bar 2 . As a result, greater surface pressures can be applied to the lower portion of the stabilizer bar 2 , and the surface pressures can be uniformly applied to the stabilizer bar 2 , thereby preventing reduction in lowering of adhesiveness of the stabilizer bar 2 and the bushing 8 .
- the bushing 8 is mounted, with its major axis direction coinciding with the up and down direction.
- the volume of the bushing 8 in the up and down direction is greater than that in the front and rear direction, allowing the bushing 8 to reliably support the stabilizer bar 2 in the up and down direction.
- the bottom surface 39 of the bushing 8 is curved, and the narrow portion 32 is provided so as to be opposed to the vehicle-body-side component 4 .
- the bushing 8 is accommodatable in a space formed in the bracket 6 even when the bushing 8 is elastically deformed by the vehicle-body-side component 4 and widen in the widthwise direction (i.e., the front and rear direction).
- the intermediate portions 35 a, 35 b of the bushing 8 are respectively opposed to the flat plate portions 21 a, 21 b of the bracket 6 .
- the flat plate portions 21 a, 21 b can well compress the respective intermediate portions 35 a, 35 b, thereby well applying the surface pressures to the bushing 8 in the front and rear direction.
- the bar mounting device 1 can be used also in a construction in which the stabilizer bar 2 is not bonded to the bushing 8 . Even in this construction, the surface pressures can be uniformly applied to the stabilizer bar 2 , thereby well preventing the through hole 30 of the bushing 8 from being opened.
- the shape of the bracket 6 is not limited to its shape in the above-described embodiment.
- the flat plate portions 21 a, 21 b and the outwardly inclined portions 25 a, 25 b are not essential.
- Portions of the bracket 6 between the intermediate portions 22 a, 22 b and the respective inwardly protruding portions 26 a, 26 b may have a shape which is formed by bending the pair of opposed portions 20 a, 20 b in a direction parallel to the flange portions 12 a, 12 b.
- the inwardly protruding portions 26 and the narrowed portion 28 may be provided below a line of intersection of each of the pair of opposed portions 20 a, 20 b and the lower tangent plane s to the stabilizer bar 2 and may be provided between (i) the line of intersection of each of the pair of opposed portions 20 a, 20 b and the plane d containing the diameter of the stabilizer bar 2 and (ii) the line of intersection each of the pair of opposed portions 20 a, 20 b and the lower tangent plane s, for example.
- the shape of the bushing 8 is not limited to its shape in the above-described embodiment.
- the bottom surface 39 may be a flat surface.
- each of the intermediate portions 35 a, 35 b may be a flat plate portion.
- the bar mounting device 1 may be used also in the case where the stabilizer bar 2 is mounted on the vehicle-body-side component 4 for which the normal line n extends in the front and rear direction of the vehicle or in the case where the stabilizer bar 2 is mounted on the vehicle-body-side component 4 for which the normal line n is inclined with respect to the up and down direction and the front and rear direction.
- FIGS. 7 and 8 illustrate a bar mounting device including a bracket 52 according to a second embodiment and a bushing 54 .
- the bracket 52 has a generally “ ⁇ ” shape in cross section like the bracket 6 according to the first embodiment.
- the bracket 52 differs from the bracket 6 in that a protruding portion 60 is formed near a top portion of a recessed portion 58 and that opposite end surfaces of the recessed portion 58 in the axial direction are inclined surfaces 62 c, 62 d each extending outward.
- opposite end portions of the protruding portion 60 in the axial direction are R-shaped portions 64 c, 64 d.
- the bushing 54 has a cross-sectional shape which is generally formed by cutting out a portion of an oval shape like the bushing 8 in the first embodiment.
- the bushing 54 differs from the bushing 8 in that a protruding portion 70 is formed near a top portion of the bushing 54 and that the bushing 54 is provided with a stopper 72 protruding from one end portion of the bushing 54 in the axial direction.
- opposite end portions of the protruding portion 70 in the axial direction are R-shaped portions 74 c, 74 d.
- the bracket 52 When mounting the stabilizer bar 2 onto the vehicle-body-side component, the bracket 52 is mounted on the stabilizer bar 2 substantially in the up and down direction (Z) such that the recessed portion 58 straddles a portion of the stabilizer bar 2 to which the bushing 54 is not bonded. In this state, the stabilizer bar 2 is then moved in the axial direction (X) indicated by arrow in FIG. 8 . Since the inclined surfaces 62 c, 62 d extending outward are provided as the opposite end surfaces of the bracket 52 in the axial direction, the bushing 54 is easily inserted into the bracket 52 and not easily damaged when mounting the bracket 52 onto the stabilizer bar 2 .
- the bracket 52 is then moved in the axial direction to a position at which the bracket 52 covers an outer surface of the bushing 54 .
- the movement of the bracket 52 and the bushing 54 relative to each other in the axial direction is easy because the R-shaped portions 64 c, 64 d are provided at steps of the protruding portion 60 of the bracket 52 , and the R-shaped portions 74 c, 74 d are provided at steps of the protruding portion 70 of the bushing 54 .
- the bracket 52 is moved until an end face of the bracket 52 in the axial direction (i.e., the inclined surface 62 c ) is brought into contact with the stopper 72 provided on the bushing 54 . This construction allows the bracket 52 to be accurately positioned relative to the bushing 54 .
- bracket 52 Since the bracket 52 has the narrowed portion 28 , it is difficult in some cases for the bushing 54 to be inserted into the recessed portion 58 in the up and down direction, but the bushing 54 may be easily inserted into the recessed portion 58 in the axial direction.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Springs (AREA)
- Vehicle Body Suspensions (AREA)
- Connection Of Plates (AREA)
- Vibration Prevention Devices (AREA)
- Clamps And Clips (AREA)
Abstract
A bracket includes: a recessed portion capable of accommodating a bushing; and a mount portion to be mounted on a vehicle-body-side component, on which a stabilizer bar is to be mounted via the bushing. The recessed portion has a pair of opposed portions opposed to each other. The pair of opposed portions have an intermediate portion and a portion nearer to an opening than the intermediate portion, and a distance between the pair of opposed portions is less at the portion nearer to the opening than at the intermediate portion.
Description
- The present application claims priority from Japanese Patent Application No. 2015-084203, which was filed on Apr. 16, 2015, the disclosure of which is herein incorporated by reference in its entirety.
- 1. Technical Field
- The following disclosure relates to a bracket used for mounting of a stabilizer bar on a vehicle body via a bushing.
- 2. Description of the Related Art
- Patent Documents 1-4 disclose stabilizer-bar mounting devices (hereinafter simply referred to as “bar mounting devices”) including: a bushing for holding a stabilizer bar; and a bracket used for mounting of the bushing on a vehicle-body-side component.
- Patent Document 1 (Japanese Patent Application Publication No. 2014-210534) discloses a bar mounting device including (i) a bushing (see
FIGS. 5 and 7 ) having a protruding portions formed on a pair of side surfaces of the bushing and (ii) a bracket having a flange portion and a recessed portion for accommodating the bushing. In this bar mounting device, the bushing has interferences in an up and down direction and a front and rear direction of a vehicle. Thus, surface pressures uniformly act on the stabilizer bar.Patent Document 1 also discloses a bar mounting device that includes a bracket (seeFIG. 9 ) having a gradually-broaden guide portion formed in an opening of a recessed portion of the bushing. In this bar mounting device, the bushing can be easily inserted into the recessed portion in mounting. - Patent Document 2 (Japanese Patent Application Publication No. 2014-084061) discloses a bar mounting device including a bushing having a through hole in which a stabilizer bar is to be inserted, and the through hole has a lower small-diameter portion and an upper large-diameter portion. Since the lower portion of the through hole has a small diameter, it is possible to well reduce lowering of surface pressures acting on a lower portion of the stabilizer bar, leading to uniform surface pressures.
Patent Document 2 also discloses a bar mounting device including a rigid component (seeFIG. 11 ) provided between the bushing and a vehicle body. This rigid component suppresses a downward flow of an elastic material of the bushing, making it possible to reduce lowering of the surface pressures acting on the lower portion of the stabilizer bar. - Patent Document 3 (Japanese Patent Application Publication No. 2013-060196) discloses a bar mounting device including: a bushing; flange portions respectively provided at opposite end portions of the bushing in its axial direction; and a bracket (see
FIG. 9 ) to be fitted between these flange portions. This construction reduces relative movement of the bushing and the bracket in the axial direction. - Patent Document 4 (Japanese Patent Application Publication No. 2008-207708) discloses a bar mounting device including a bushing that includes: a protruding portion provided at an intermediate portion of the bushing in its axial direction; and a stopper provided on one end portion of the bushing. A bracket is mounted in a state in which the bracket is held in contact with the stopper and fitted on the protruding portion of the bushing.
- Accordingly, an aspect of the disclosure relates to a bracket capable of achieving uniform surface pressures acting on a stabilizer bar.
- In one aspect of the disclosure, a bracket includes a narrowed portion provided at a position nearer to an opening than an intermediate portion of a recessed portion for accommodating a bushing.
- Surface pressures are applied by the narrowed portion via the bushing to a portion of a stabilizer bar near a vehicle-body-side component. As a result, uniform surface pressures act on the stabilizer bar.
-
FIG. 9 in the present application illustrates one example of a conventional bar mounting device. The bar mounting device includes (i) acylindrical bushing 102 having a generally semicircular shape in cross section and having a central portion formed with a throughhole 100 and (ii) abracket 108 having (a) arecessed portion 104 for accommodating thebushing 102 and (b) a pair offlange portions 106 respectively provided on opposite sides of the recessedportion 104. The stabilizer bar is mounted on a vehicle-body-side component 110 by securing the pair offlange portions 106 to vehicle-body-side component 110 in a state in which the stabilizer bar is inserted in thethrough hole 100 of thebushing 102, and thebushing 102 is accommodated in the recessedportion 104 of thebracket 108. InFIG. 9 , a direction of a normal line n to a mounting surface of the vehicle-body-side component 110 coincides with an up and down direction of a vehicle. A direction parallel with an axis p of the stabilizer bar coincides with a widthwise direction of the vehicle. A direction perpendicular to the up and down direction and the widthwise direction coincides with a front and rear direction or a longitudinal direction of the vehicle. - In this conventional bar mounting device, the
bushing 102 has upper and lower interferences. Thus, a large surface pressure is applied to the stabilizer bar in the up and down direction in the state in which the stabilizer bar is mounted on the vehicle-body-side component 110. However, thebushing 102 is compressed at its upper portion by therecessed portion 104 of thebracket 108 but is compressed at its lower portion by the mounting surface (i.e., a flat surface) of the vehicle-body-side component 110. Thus, a surface pressure applied to an upper portion of the stabilizer bar differs from a surface pressure applied to a lower portion of the stabilizer bar. For example, small surface pressures fa, fb are respectively applied to portions A of the lower portion of the stabilizer bar which are enclosed by one-dot chain lines inFIG. 9 . Accordingly, in the case where the stabilizer bar is bonded to the bushing 102, adhesiveness of the stabilizer bar and the bushing 102 lowers. In the case where the stabilizer bar and thebushing 102 are not bonded to each other, thethrough hole 100 is more easily opened. - In contrast, when the bracket according to the present disclosure is used to mount the stabilizer bar on the vehicle-body-
side component 110 via the bushing in a state similar to the state illustrated inFIG. 9 , for example, surface pressures are applied by the narrowed portion of the bracket via the bushing to the portions A of the lower portion of the stabilizer bar (which corresponds to a portion of the stabilizer bar near the vehicle-body-side component 110). As a result, surface pressures are applied to the stabilizer bar more uniformly than in the case of the conventional bar mounting device. In the case where the stabilizer bar is bonded to the bushing, lowering of adhesiveness can be reduced, and in the case where the stabilizer bar is not bonded to the bushing, opening of the through hole can be prevented. - There will be described inventions recognized to be claimable in the present invention and features of the invention.
- (1) A bracket, comprising:
- a recessed portion capable of accommodating a bushing; and
- a mount portion to be mounted on a vehicle-body-side component, on which a stabilizer bar is to be mounted via the bushing,
- wherein the recessed portion comprises a pair of opposed portions opposed to each other, and
- wherein the pair of opposed portions comprise an intermediate portion and a portion nearer to an opening than the intermediate portion, and a distance between the pair of opposed portions is less at the portion nearer to the opening than at the intermediate portion.
- The portion of the pair of opposed portions which is nearer to the opening than the intermediate portion has a portion at which the distance between the pair of opposed portions is less than that at the intermediate portion. A narrowed portion is constituted by at least a portion of the portion at which the distance between the pair of opposed portions is less than that at the intermediate portion.
- (2) The bracket according to the above form (1), wherein each of the pair of opposed portions is shaped so as to be bent inwardly between the intermediate portion and an open end of the recessed portion.
- (3) The bracket according to the above form (2),
- wherein the pair of opposed portions respectively comprise a pair of inwardly inclined portions at the portion nearer to the opening than the intermediate portion, and
- wherein a distance between the pair of inwardly inclined portions decreases with increase in distance thereof from the intermediate portion.
- The distance between the inwardly inclined portions may decrease in a curved fashion and may decrease linearly.
- (4) The bracket according to any one of the above forms (1) through (3), wherein the pair of opposed portions respectively comprise a pair of outwardly inclined portions, and a distance between the pair of outwardly inclined portions increases with decrease in distance thereof to an open end at the portion nearer to the opening than the intermediate portion.
- The pair of outwardly inclined portions define the shape of the opening of the recessed portion to a gradually broaden shape, in other words, a tapered shape. This shape allows the bushing to be easily inserted into the recessed portion of the bracket. A pair of inwardly protruding portions each protruding to the most inward position are formed between the pair of inwardly inclined portions and the pair of outwardly inclined portions. The narrowed portion is constituted by the pair of inwardly protruding portions and at least a portion of the inwardly inclined portions (which includes a portion of the inwardly inclined portions near the inwardly protruding portions), for example.
- In the state in which the stabilizer bar is mounted on the vehicle-body-side component by the present bracket via the bushing, the narrowed portion is preferably provided at a position nearer to the vehicle-body-side component than a line of intersection of each of the pair of opposed portions and a plane containing the diameter of the stabilizer bar. The narrowed portion is more preferably provided near a line of intersection of each of the pair of opposed portions and a tangent plane to the stabilizer bar near the vehicle-body-side component (in other words, the narrowed portion is more preferably provided within a set range containing the line of intersection of each of the pair of opposed portions and the tangent plane). Alternatively, the narrowed portion is more preferably provided at a position nearer to the vehicle-body-side component than the line of intersection.
- (5) The bracket according to the above form (4), wherein the pair of outwardly inclined portions respectively comprise a pair of straight portions, and a distance between the pair of straight portions continuously increases with decrease in distance thereof to the open end.
- (6) The bracket according to any one of the above forms (1) through (5), wherein the pair of opposed portions respectively comprise a pair of flat plate portions provided at the intermediate portion, and a distance between the pair of flat plate portions is constant.
- The bushing can be well compressed by the flat plate portions.
- (7) A stabilizer-bar mounting device, comprising:
- the bracket according to any one of the above forms (1) through (6); and
- a bushing that holds the stabilizer bar.
- (8) The bar mounting device according to the above form (7),
- wherein the bushing is a cylindrical member comprising a through hole extending in an axial direction of the bushing, and
- wherein the bushing comprises: a pair of side surfaces opposed to each other; and a pair of recessed portions formed near a line of intersection of each of the pair of side surfaces and a tangent plane to the through hole.
- The pair of recessed portions opposed to the narrowed portion of the bracket have a cross-sectional shape which is generally formed by cutting out portions of the pair of side surfaces of the bushing. The recessed portion is preferably provided at a position nearer to a vehicle-body-side component than a line of intersection of each of the pair of side surfaces and a plane containing the diameter of the through hole. Also, the recessed portion is more preferably provided near the line of intersection of each of the pair of side surfaces and the tangent plane to the through hole (in other words, within a set range containing the line of intersection) or provided at a position farther from the through hole than the line of intersection.
- (9) A bushing, as a cylindrical member, comprising:
- a pair of side surfaces opposed to each other;
- a pair of recessed portions; and
- a through hole extending in an axial direction of the bushing,
- wherein the pair of recessed portions are formed within a set range containing a line of intersection of each of the pair of side surfaces and a tangent plane to the through hole.
- The present bushing is suitable for use with the bracket according to any one of the forms (1) through (6).
- The objects, features, advantages, and technical and industrial significance of the present disclosure will be better understood by reading the following detailed description of the embodiments, when considered in connection with the accompanying drawings, in which:
-
FIG. 1 is a perspective view illustrating a situation in which a stabilizer bar is mounted on a vehicle body via a bushing by a bar mounting device including a bracket according to a first embodiment; -
FIG. 2 is a plan view of the bracket; -
FIG. 3 is a cross-sectional of the bracket (FIG. 3 is a cross-sectional view taken along line inFIG. 2 ); -
FIG. 4 is a cross-sectional view of the bushing of the bar mounting device; -
FIG. 5 is a view for explaining mounting of the stabilizer bar in the bar mounting device; -
FIG. 6 is a cross-sectional view of the bar mounting device; -
FIG. 7 is a plan view of a bar mounting device according to a bracket according to a second embodiment; and -
FIG. 8 is a cross-sectional view of the bar mounting device (FIG. 8 is a cross-sectional view taken along line VIII-VIII inFIG. 7 ); and -
FIG. 9 is a cross-sectional view of a conventional bar mounting device. - Hereinafter, there will be described a stabilizer-bar mounting device by reference to the drawings. As illustrated in
FIG. 1 , the stabilizer-bar mounting device (hereinafter simply referred to as “bar mounting device”) 1 is used for mounting astabilizer bar 2 onto a vehicle-body-side component 4, e.g., a suspension member, on a torsion bar. Thebar mounting device 1 includes abracket 6 according to one embodiment, and abushing 8. Thebracket 6 includes a recessedportion 10 and a pair of 12 a, 12 b which are formed on opposite sides of the recessedflange portions portion 10 as mount portions. For example, thebracket 6 may have a cross-sectional shape which is generally formed by bending a metal plate. The 12 a, 12 b respectively have mountingflange portions 14 a, 14 b and are mounted on a vehicle-body-holes side component 4 by afastening device 16 which may include bolts and nuts, for example. - In
FIG. 1 , a direction parallel with an axis p of thestabilizer bar 2 is defined as an X direction (hereinafter may be referred to as “axial direction”). A direction parallel with a normal line n to a mountingsurface 4 f of the vehicle-body-side component 4 is defined as a Z direction. A direction perpendicular to the X direction and the Z direction is defined as “Y direction”. The X direction coincides with a widthwise direction of a vehicle, but each of the Y direction and the Z direction is determined depending upon a direction of the normal line n to the mountingsurface 4 f of the vehicle-body-side component 4. In the present embodiment, thestabilizer bar 2 is mounted by thebar mounting device 1 in a state in which the Y direction coincides with a front and rear direction or a longitudinal direction of the vehicle, and the Z direction coincides with an up and down direction. - As illustrated in
FIG. 3 , thebracket 6 according to a first embodiment has a generally “Ω.” shape in cross section. As illustrated inFIGS. 2 and 3 , the recessedportion 10 includes a pair ofopposed portions 20 a, 20 h which are opposed to each other. A distance between the pair of 20 a, 20 b is increased in a curved fashion from the top of theopposed portions bracket 6 toward the 12 a, 12 b, then kept constant, then decreased, and finally increased.flange portions - Portions of the pair of
20 a, 20 b with the constant distance correspond toopposed portions 21 a, 21 b. Portions of the pair offlat plate portions 20 a, 20 b which include theopposed portions 21 a, 21 b constituteflat plate portions 22 a, 22 b, for example. Theintermediate portions 21 a, 21 b have a size, e.g., a length He inflat plate portions FIG. 3 , capable of compressing thebushing 8 well as will be described below. - Portions of the pair of
20 a, 20 b with the decreasing distance correspond to a pair of inwardlyopposed portions 24 a, 24 b. Portions of the pair ofinclined portions 20 a, 20 b with the increasing distance correspond to a pair of outwardlyopposed portions 25 a, 25 b. A pair of inwardly protrudinginclined portions 26 a, 26 b are formed between the pair of inwardlyportions 24 a, 24 b and the pair of outwardlyinclined portions 25 a, 25 b. The outwardlyinclined portions 25 a, 25 b are straight portions, and a distance therebetween changes continuously.inclined portions - In the present embodiment, “
27 a, 27 b nearer to an opening than the intermediate portions” are constituted by the pair of inwardlyportions 24 a, 24 b, the pair of inwardly protrudinginclined portions 26 a, 26 b, and the pair of outwardlyportions 25 a, 25 b, for example. The pair of inwardlyinclined portions 24 a, 24 b and the pair of inwardly protrudinginclined portions 26 a, 26 b correspond to “portions with a distance therebetween which is less than the distance between the intermediate portions”. Also, “portions with a distance therebetween which is less than that between the intermediate portions” correspond to narrowedportions portions 28. - As illustrated in
FIG. 3 , a distance Ls between the pair of inwardly protruding 26 a, 26 b is less than a distance Lh between the pair ofportions 21 a, 21 b (Ls<Lh). The distance Ls between the pair of inwardly protrudingflat plate portions 26 a, 26 b may be hereinafter referred to as “distance Ls between the narrowed portions”. The distance Lh between the pair ofportions 21 a, 21 b may be hereinafter referred to as “distance Lh between the flat plate portions”. The distance between the pair of outwardlyflat plate portions 25 a, 25 b is greatest atinclined portions 29 a, 29 b each connecting the recessedconnectors portion 10 and a corresponding one of the 12 a, 12 b to each other (noted that theflange portions 29 a, 29 b may be referred to as “open ends of the recessedconnectors portion 10”). The distance Lm between the open ends 29 a, 29 b is greater than the distance Ls between the narrowed portions (Lm>Ls). The distance Lm between the open ends 29 a, 29 b may be greater or less than the distance Lh between the 22 a, 22 b. It is noted that the height H of theintermediate portions bracket 6 in the up and down direction is greater than the distance Lh between the flat plate portions (H>Lh) in order to make the volume of thebushing 8 larger in the up and down direction than in the front and rear direction. - The
bushing 8 is a cylindrical member formed of an elastic material such as rubber. As illustrated inFIG. 4 , thebushing 8 has a throughhole 30 in which thestabilizer bar 2 is to be inserted. Thebushing 8 has a cross-sectional shape which is generally formed by cutting out a portion of an oval shape. In other words, thebushing 8 includes awide portion 31 and anarrow portion 32. - The
bushing 8 has a pair of side surfaces 33 a, 33 b which are opposed to each other. Each of the pair of side surfaces 33 a, 33 b in thewide portion 31 is curved so as to protrude outward. Thebushing 8 has 35 a, 35 b which respectively protrude to opposite outermost positions in the Y direction. Theintermediate portions bushing 8 has the greatest width at the 35 a, 35 b. Theintermediate portions bushing 8 further has 36 a, 36 b between thewidth decreasing portions wide portion 31 and thenarrow portion 32. The distance or width between the pair of side surfaces 33 a, 33 b gradually decreases at the 36 a, 36 b. Thewidth decreasing portions bushing 8 further has recessed 38 a, 38 b each constituted by, e.g., a portion of theportions bushing 8 which contains a line of intersection of thenarrow portion 32 and a corresponding one of the 36 a, 36 b. As illustrated inwidth decreasing portions FIG. 4 , each of the recessed 38 a, 38 b is provided near a line of intersection of a tangent plane s to the throughportions hole 30 and a corresponding one of the pair of side surfaces 33 a, 33 b. - Each of the recessed
38 a, 38 b may be provided between (i) a line of intersection of a corresponding one of the pair of side surfaces 33 a, 33 b and a plane d containing the diameter of the throughportions hole 30 and (ii) a line of intersection of the tangent plane s and the corresponding one of the pair of side surfaces 33 a, 33 b. Each of the recessed portions 3 8 a, 3 8 b may also be provided near the line of intersection of the tangent plane s and the corresponding one of the pair of side surfaces 33 a, 33 b (that is, each of the recessed 38 a, 38 b may be provided within a set range determined by the line of intersection) and may be provided at a position located farther from the throughportions hole 30 than the line of intersection of the tangent plane s and the corresponding one of the pair of side surfaces 33 a, 33 b, for example. Preferably, each of the recessed 38 a, 38 b is provided within a set range containing the line of intersection of the tangent plane s and the corresponding one of the pair of side surfaces 33 a, 33 b. It is noted that aportions bottom surface 39 of thenarrow portion 32 is curved such that a central portion of thebottom surface 39 protrudes outward. - As illustrated in
FIG. 6 , thebushing 8 is accommodated in the recessedportion 10 of thebracket 6 in a state in which a direction of a major axis of thebushing 8 coincides with the up and down direction, and a widthwise direction of the bushing 8 (i.e., a direction of a minor axis of the bushing 8) coincides with the front and rear direction. Since a length Lbv of thebushing 8 in its major axis direction is greater than the height H of the bracket 6 (Lbv>H), thebushing 8 has interferences Aa, Ab (seeFIG. 6 ) in the up and down direction. Since a width Lbh between the 35 a, 35 b of theintermediate portions bushing 8 is greater than the distance Lh between the flat plate portions of the bracket 6 (Lbh>Lh), thebushing 8 has interferences Ac, Ad in the front and rear direction. In the present embodiment, each of the interferences Ac, Ad in the front and rear direction is less than each of the interferences Aa, Ab in the up and down direction. - A relative positional relationship between the
bushing 8 and thebracket 6 is determined in advance in a state in which thebushing 8 is mounted on the vehicle-body-side component 4 by thebracket 6. In the present embodiment, the 36 a, 36 b and the recessedwidth decreasing portions 38 a, 38 b of theportions bushing 8 are respectively opposed to the inwardly 24 a, 24 b and the inwardly protrudinginclined portions 26 a, 26 b of theportions bracket 6. Furthermore, the 35 a, 35 b of theintermediate portions bushing 8 are respectively opposed to the 21 a, 21 b of theflat plate portions bracket 6. - There will be next explained the case where the
stabilizer bar 2 is mounted onto the vehicle-body-side component 4 by thebar mounting device 1. Thestabilizer bar 2 is in advance inserted in the throughhole 30 of thebushing 8 and bonded to thebushing 8. As illustrated inFIG. 5 , thebracket 6 is brought closer to the vehicle-body-side component 4 toward thebushing 8 to which thestabilizer bar 2 is bonded, along the arrow inFIG. 5 , i.e., in a direction substantially parallel to the normal line n to the mountingsurface 4 f of the vehicle-body-side component 4, and then thebushing 8 is inserted into the recessedportion 10 of thebracket 6. Since an opening of the recessedportion 10 of thebracket 6 is gradually broaden or tapered, thebushing 8 can be easily inserted into the recessedportion 10. As illustrated inFIG. 1 , the 12 a, 12 b of theflange portions bracket 6 are then secured to the vehicle-body-side component 4 by thefastening device 16. Thebushing 8 is elastically deformed or compressed by, e.g., thebracket 6 and the vehicle-body-side component 4. - The
bushing 8 has the interferences not only in the up and down direction but also in the front and rear direction, thereby applying surface pressures to thestabilizer bar 2 not only in the up and down direction but also in the front and rear direction. Also, the narrowedportions 28 of thebracket 6 compress thebushing 8 toward thestabilizer bar 2, in other words, in directions indicated by arrows F1, F2 inFIG. 6 , thereby applying surface pressures to a portion R of a lower portion of thestabilizer bar 2. As a result, greater surface pressures can be applied to the lower portion of thestabilizer bar 2, and the surface pressures can be uniformly applied to thestabilizer bar 2, thereby preventing reduction in lowering of adhesiveness of thestabilizer bar 2 and thebushing 8. - The
bushing 8 is mounted, with its major axis direction coinciding with the up and down direction. Thus, the volume of thebushing 8 in the up and down direction is greater than that in the front and rear direction, allowing thebushing 8 to reliably support thestabilizer bar 2 in the up and down direction. - The
bottom surface 39 of thebushing 8 is curved, and thenarrow portion 32 is provided so as to be opposed to the vehicle-body-side component 4. Thus, thebushing 8 is accommodatable in a space formed in thebracket 6 even when thebushing 8 is elastically deformed by the vehicle-body-side component 4 and widen in the widthwise direction (i.e., the front and rear direction). - The
35 a, 35 b of theintermediate portions bushing 8 are respectively opposed to the 21 a, 21 b of theflat plate portions bracket 6. Thus, the 21 a, 21 b can well compress the respectiveflat plate portions 35 a, 35 b, thereby well applying the surface pressures to theintermediate portions bushing 8 in the front and rear direction. - Incidentally, as in the bar mounting device disclosed in
Patent Document 2, it is possible to provide a rigid component between the bushing and the vehicle-body-side component to uniform surface pressures acting on the stabilizer bar, which however causes another problem of increase in the number of components. In thebar mounting device 1 according to the present embodiment, in contrast, the narrowedportion 28 is provided in thebracket 6. This construction can uniformly apply the surface pressures to thestabilizer bar 2 without increase in the number of components.Patent Document 1 has no suggestion for providing the narrowedportion 28 in thebracket 6. - It is noted that the
bar mounting device 1 according to the present embodiment can be used also in a construction in which thestabilizer bar 2 is not bonded to thebushing 8. Even in this construction, the surface pressures can be uniformly applied to thestabilizer bar 2, thereby well preventing the throughhole 30 of thebushing 8 from being opened. - The shape of the
bracket 6 is not limited to its shape in the above-described embodiment. For example, the 21 a, 21 b and the outwardlyflat plate portions 25 a, 25 b are not essential. Portions of theinclined portions bracket 6 between the 22 a, 22 b and the respective inwardly protrudingintermediate portions 26 a, 26 b may have a shape which is formed by bending the pair ofportions 20 a, 20 b in a direction parallel to theopposed portions 12 a, 12 b. In the state in which theflange portions stabilizer bar 2 is mounted on the vehicle-body-side component 4 by thebar mounting device 1, the inwardly protruding portions 26 and the narrowedportion 28 may be provided below a line of intersection of each of the pair of 20 a, 20 b and the lower tangent plane s to theopposed portions stabilizer bar 2 and may be provided between (i) the line of intersection of each of the pair of 20 a, 20 b and the plane d containing the diameter of theopposed portions stabilizer bar 2 and (ii) the line of intersection each of the pair of 20 a, 20 b and the lower tangent plane s, for example.opposed portions - The shape of the
bushing 8 is not limited to its shape in the above-described embodiment. For example, thebottom surface 39 may be a flat surface. Also, each of the 35 a, 35 b may be a flat plate portion. Theintermediate portions bar mounting device 1 may be used also in the case where thestabilizer bar 2 is mounted on the vehicle-body-side component 4 for which the normal line n extends in the front and rear direction of the vehicle or in the case where thestabilizer bar 2 is mounted on the vehicle-body-side component 4 for which the normal line n is inclined with respect to the up and down direction and the front and rear direction. -
FIGS. 7 and 8 illustrate a bar mounting device including abracket 52 according to a second embodiment and abushing 54. Thebracket 52 has a generally “Ω” shape in cross section like thebracket 6 according to the first embodiment. Thebracket 52 differs from thebracket 6 in that a protrudingportion 60 is formed near a top portion of a recessedportion 58 and that opposite end surfaces of the recessedportion 58 in the axial direction are 62 c, 62 d each extending outward. As illustrated ininclined surfaces FIG. 8 , opposite end portions of the protrudingportion 60 in the axial direction are R-shaped 64 c, 64 d.portions - The
bushing 54 has a cross-sectional shape which is generally formed by cutting out a portion of an oval shape like thebushing 8 in the first embodiment. Thebushing 54 differs from thebushing 8 in that a protrudingportion 70 is formed near a top portion of thebushing 54 and that thebushing 54 is provided with astopper 72 protruding from one end portion of thebushing 54 in the axial direction. As illustrated inFIG. 7 , opposite end portions of the protrudingportion 70 in the axial direction are R-shaped 74 c, 74 d.portions - When mounting the
stabilizer bar 2 onto the vehicle-body-side component, thebracket 52 is mounted on thestabilizer bar 2 substantially in the up and down direction (Z) such that the recessedportion 58 straddles a portion of thestabilizer bar 2 to which thebushing 54 is not bonded. In this state, thestabilizer bar 2 is then moved in the axial direction (X) indicated by arrow inFIG. 8 . Since the 62 c, 62 d extending outward are provided as the opposite end surfaces of theinclined surfaces bracket 52 in the axial direction, thebushing 54 is easily inserted into thebracket 52 and not easily damaged when mounting thebracket 52 onto thestabilizer bar 2. Thebracket 52 is then moved in the axial direction to a position at which thebracket 52 covers an outer surface of thebushing 54. The movement of thebracket 52 and thebushing 54 relative to each other in the axial direction is easy because the R-shaped 64 c, 64 d are provided at steps of the protrudingportions portion 60 of thebracket 52, and the R-shaped 74 c, 74 d are provided at steps of the protrudingportions portion 70 of thebushing 54. Thebracket 52 is moved until an end face of thebracket 52 in the axial direction (i.e., theinclined surface 62 c) is brought into contact with thestopper 72 provided on thebushing 54. This construction allows thebracket 52 to be accurately positioned relative to thebushing 54. Since thebracket 52 has the narrowedportion 28, it is difficult in some cases for thebushing 54 to be inserted into the recessedportion 58 in the up and down direction, but thebushing 54 may be easily inserted into the recessedportion 58 in the axial direction. - While the embodiments have been described above, it is to be understood that the disclosure is not limited to the details of the illustrated embodiments, but may be embodied with various changes and modifications, which may occur to those skilled in the art, without departing from the spirit and scope of the disclosure.
Claims (4)
1. A bracket, comprising:
a recessed portion capable of accommodating a bushing; and
a mount portion to be mounted on a vehicle-body-side component, on which a stabilizer bar is to be mounted via the bushing,
wherein the recessed portion comprises a pair of opposed portions opposed to each other, and
wherein the pair of opposed portions comprise an intermediate portion and a portion nearer to an opening than the intermediate portion, and a distance between the pair of opposed portions is less at the portion nearer to the opening than at the intermediate portion.
2. The bracket according to claim 1 , wherein the pair of opposed portions respectively comprise a pair of outwardly inclined portions, and a distance between the pair of outwardly inclined portions increases with decrease in distance thereof to an open end at the portion nearer to the opening than the intermediate portion.
3. The bracket according to claim 2 , wherein the pair of outwardly inclined portions respectively comprise a pair of straight portions, and a distance between the pair of straight portions continuously increases with decrease in distance thereof to the open end.
4. The bracket according to claim 1 , wherein the pair of opposed portions respectively comprise a pair of flat plate portions provided at the intermediate portion, and a distance between the pair of flat plate portions is constant.
Priority Applications (1)
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| US15/908,118 US10661627B2 (en) | 2015-04-16 | 2018-02-28 | Bracket |
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|---|---|---|---|
| JP2015-084203 | 2015-04-16 | ||
| JP2015084203A JP6347226B2 (en) | 2015-04-16 | 2015-04-16 | Stabilizer bar mounting device, stabilizer bar mounting bracket |
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| US15/908,118 Division US10661627B2 (en) | 2015-04-16 | 2018-02-28 | Bracket |
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|---|---|---|---|---|
| JP2018079752A (en) * | 2016-11-15 | 2018-05-24 | 東洋ゴム工業株式会社 | Stabilizer bush |
| JP6754311B2 (en) * | 2017-02-28 | 2020-09-09 | 住友理工株式会社 | Stabilizer bush |
| JP6948964B2 (en) * | 2018-02-26 | 2021-10-13 | 住友理工株式会社 | Adhesive stabilizer bush and stabilizer bar with stabilizer bush |
| JP7038010B2 (en) * | 2018-06-12 | 2022-03-17 | 住友理工株式会社 | Stabilizer bush |
| JP7095572B2 (en) * | 2018-11-28 | 2022-07-05 | トヨタ自動車株式会社 | Stabilizer device and manufacturing method of stabilizer device |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102016205655A1 (en) | 2016-10-20 |
| CN106042818A (en) | 2016-10-26 |
| US20180186211A1 (en) | 2018-07-05 |
| JP6347226B2 (en) | 2018-06-27 |
| JP2016205434A (en) | 2016-12-08 |
| CN106042818B (en) | 2019-10-01 |
| US10661627B2 (en) | 2020-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:UCHIDA, SATOSHI;KONDO, TAKAOMI;SHIRASHIGE, MASAKI;REEL/FRAME:037802/0494 Effective date: 20160121 |
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| STCB | Information on status: application discontinuation |
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