JP2016188032A - Structure for mounting steering gear box and stabilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase rigidity of the whole structure for mounting a steering gear box and a stabilizer, without causing an increase in the number of components.SOLUTION: A structure includes: a steering gear box 1 which is fixed to a vehicle body member 11 by two bolts 7 arranged on front and rear sides, in each of two locations at an interval in a vehicle-width direction; a stabilizer 2 for connecting right and left suspension devices together; two stabilizer bushes 3 which are externally fitted to the stabilizer 2 at an interval in the vehicle-width direction and arranged between the two bolts 7; and a first bracket 4 which abuts on a top surface of the stabilizer bush 3 and which is co-fastened by the two bolts 7 to fix the stabilizer 2 to the vehicle body member 11.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an attachment structure for attaching a steering gear box and a stabilizer to a vehicle body member.

  Conventionally, a structure is known in which a steering gear box is attached to a vehicle body at two locations in the vehicle width direction, and a stabilizer that connects the left and right suspension devices is attached to the vehicle body at a position close to the steering gear box attachment location. For example, there is a structure in which a torsion portion of a stabilizer is connected to an attachment bracket for attaching a steering gear box so as to be useful for reinforcement (see Patent Document 1). Further, there is a structure in which a connecting member for connecting a bolt for fixing a steering gear box and a stabilizer bracket is provided separately from a stabilizer bracket for attaching the stabilizer to the suspension frame (see Patent Document 2). According to this structure, it is said that both the mounting rigidity of the steering gear box and the mounting rigidity of the stabilizer can be enhanced.

Japanese Patent Publication No. 05-001163 JP 2012-236532 A

  However, the structure of the above-described Patent Document 2 is provided with a connecting member separately from the stabilizer bracket, and one end and the other end of the connecting member are attached to the steering gear box and the stabilizer bracket, respectively. Increases cost and costs. Also, in this structure, since the circular hole formed in the upper member of the connecting member is a depression, when muddy water or sand particles enter and accumulate in this depression, the connecting member, bolts, etc. will rust. There is a risk of corrosion.

  In this structure, one end of the connecting member is fixed to the suspension frame by tightening together with the steering gear box, but the other end of the connecting member is attached to the stabilizer bracket by a stud bolt and a nut standing on the stabilizer bracket. It is attached. For this reason, when the fixed location of the steering gear box is used as a fulcrum, the connecting member is in a cantilevered state, so that there is a problem that it is difficult to increase the rigidity of the entire mounting structure with respect to the input of the stabilizer.

  The present case has been devised in view of such problems, and one of the purposes of the mounting structure of the steering gear box and the stabilizer is to improve the rigidity of the entire mounting structure without increasing the number of parts. . The present invention is not limited to this purpose, and is a function and effect derived from each configuration shown in the embodiments for carrying out the invention described later, and other effects of the present invention are to obtain a function and effect that cannot be obtained by conventional techniques. Can be positioned.

  (1) The steering gear box and stabilizer mounting structure disclosed herein includes a steering gear box fixed to a vehicle body member by two bolts arranged at the front and rear at each of two locations spaced in the vehicle width direction. And a stabilizer for connecting the left and right suspension devices. The mounting structure is externally fitted to the stabilizer with an interval in the vehicle width direction, is in contact with two stabilizer bushes disposed between the two bolts, and an upper surface of the stabilizer bush. And a first bracket for fixing the stabilizer to the vehicle body member by being fastened together by two bolts.

(2) It is preferable that the vehicle body member is a suspension cross member that connects an arm member that supports an axle and a vehicle body. In this case, it is preferable that the first bracket is made of a single plate extending in the vehicle width direction and abuts on the upper surfaces of the two stabilizer bushes.
(3) It is preferable that the stabilizer bush has a protruding portion protruding upward on the upper surface, and the first bracket has a locking portion into which the protruding portion is fitted.

(4) The mounting structure may include a second bracket for fixing the steering gear box to the vehicle body member by being fastened by the two bolts via a steering bush fitted to the steering gear box. preferable.
(5) It is preferable that the steering gear box is fixed to the vehicle body member by fastening an integrally formed mounting portion with the two bolts.
(6) Moreover, it is preferable that the steering gear box and the stabilizer are arranged so as to overlap in the vertical direction between the two bolts.

  According to the disclosed steering gear box and stabilizer mounting structure, the rigidity of the entire mounting structure can be improved without increasing the number of parts.

It is a typical perspective view which shows the steering gear box and stabilizer which were attached to the suspension cross member by the attachment structure which concerns on one Embodiment. FIG. 2 is an exploded perspective view in which the steering gear box and the stabilizer of FIG. 1 are disassembled from a suspension cross member. It is a top view of FIG. It is a longitudinal cross-sectional view (the AA arrow directional cross-sectional view of FIG. 3) of the left fixed location of a steering gear box. It is a longitudinal cross-sectional view (BB sectional view taken on the line of FIG. 3) of the right fixed portion of the steering gear box. It is the disassembled perspective view which expanded the latching | locking part of a stabilizer bush and a 1st bracket.

  An attachment structure as an embodiment will be described with reference to the drawings. The embodiment described below is merely an example, and there is no intention of excluding various modifications and technical applications that are not explicitly described in the following embodiment. In the following description, the traveling direction of the vehicle is assumed to be the front, the opposite is the rear, the left and right are determined based on the front, the direction of gravity is the lower side, and the opposite is the upper side. Furthermore, the center side in the left-right direction (also referred to as the vehicle width direction) is referred to as the inside, and the opposite side is referred to as the outside.

[1. Constitution]
[1-1. overall structure]
The steering gear box and stabilizer mounting structure according to this embodiment is a structure for mounting the steering gear box 1 and the stabilizer 2 to the suspension cross member 11 (vehicle body member, hereinafter referred to as the suspension cross 11) shown in FIG. .

  First, the structure of the suspension cloth 11 and the configuration of the suspension device will be described with reference to FIGS. The suspension cross 11 connects the arm member that supports the axle and the vehicle body, and is provided in a vehicle that includes an independent suspension system in which the left and right wheels operate independently. The suspension device of this embodiment is a so-called strut type suspension device, and is provided on the front wheel FW as shown in FIG. The suspension device is supported by connecting the upper end of a coil spring (both not shown) that houses the shock absorber to the vehicle body. This suspension device is provided with a lower arm 10 (arm member) that is formed in a substantially L shape in a top view and supports an axle (not shown).

  As shown in FIGS. 1 and 2, the lower arm 10 is disposed in such a posture that the corner portion 10 c is disposed on the front inner side and the arm portions 10 a and 10 b extend on the rear and outer sides, respectively. The corner portion 10c and the first arm portion 10a extending rearward are portions that become the base end side when the second arm portion 10b extending outward is the front end side of the lower arm 10, and are suspension crosses that extend in the vehicle width direction. 11 are connected to the left and right ends of each via bushes (not shown).

  The suspension cross 11 is a member extending in the vehicle width direction between a pair of left and right side members 30 (vehicle bodies) extending in the front-rear direction of the vehicle, and is fixed to and supported by the side members 30 at both left and right ends. The side member 30 is a skeleton member of the vehicle. The suspension cross 11 is formed in a symmetrical shape in the vehicle width direction, and includes an upper plate 12, two lower plates 13, a reinforcing member 14, and two transmission members 17. That is, the suspension cloth 11 is configured by assembling the upper plate 12, the two lower plates 13, the reinforcing member 14, and the two transmission members 17.

  As shown in FIGS. 1 to 3, the upper plate 12 is a plate-like member extending in the vehicle width direction, and is disposed above the lower arm 10, the exhaust pipe 31 and the transfer 32 and supported by the side member 30. Is done. The upper plate 12 extends in the vehicle width direction so that its normal line is oriented in the vertical direction. The length of the upper plate 12 increases in the front-rear direction as it goes outward from the center of the vehicle width direction, and slopes downward. It is formed in a shape that branches back and forth.

  Hereinafter, a substantially rectangular portion provided at the center in the vehicle width direction of the upper plate 12 is referred to as a plane portion 12a, and is provided in a substantially trapezoidal shape that is continuously provided on both the left and right sides of the plane portion 12a and inclined downward. Each of the two parts is referred to as an inclined surface part 12b. A branch-shaped portion projecting outside the inclined surface portions 12b of the upper plate 12 is referred to as a fixed surface portion 12c. Each of the left and right fixed surface portions 12c is formed with a recessed portion that is recessed inward in the middle portion in the front-rear direction, and through holes are provided in front and rear portions of the recessed portion, respectively. Bolts 19 for connecting the suspension cross 11 and the lower arm 10 are inserted through the holes.

  In the upper plate 12, the flat surface portion 12a and each fixed surface portion 12c are provided substantially in parallel, and these are connected via the inclined surface portion 12b, so that the flat surface portion 12a is one step higher than the fixed surface portions 12c on both sides in front view. Provided in position. That is, the upper plate 12 has a shape in which the central portion in the vehicle width direction is kicked up, and the exhaust pipe 31 and the transfer 32 are disposed below the upper plate 12. In addition, below the fixed surface portion 12 c of the upper plate 12, a base end side portion (the first arm 10 a and the corner portion 10 c) of the lower arm 10 is disposed.

  A fixing hole 12f for fixing the upper plate 12 to the side member 30 is provided through the outer end of the rear portion of each fixing surface portion 12c. Further, a cylindrical portion 12n having a cylindrical shape extending in the vertical direction is joined to the back surface of the fixed surface portion 12c. The cylindrical portion 12n is joined to the fixed surface portion 12c so that its upper end communicates with the fixed hole 12f, and its lower end is disposed through the lower plate 13. The rear portion of the upper plate 12 is fastened and fixed to the side member 30 by inserting bolts (not shown) into the cylindrical portion 12n and the fixing hole 12f from below the cylindrical portion 12n.

  Two front brackets 15 are disposed on the upper surface of the upper plate 12 with a gap in the vehicle width direction. The front bracket 15 is a support member for supporting the upper plate 12 to the side member 30 and is joined to the upper surface of the upper plate 12 by welding. As shown in FIG. 2, the front bracket 15 includes a base portion 15a joined (fixed) to the upper surface of the inclined surface portion 12b, an arm portion 15b extending upward from the base portion 15a and inclined outward, and an arm portion 15b. And a tip portion 15c projecting outward at the tip.

  The base portion 15a of the front bracket 15 is a portion that serves as a base for fixing the steering gear box 1 with bolts 7, and as shown in FIGS. 2, 4, and 5, the longitudinal section along the front-rear direction opens downward. It is formed in a U shape. The base portion 15a is formed so that the upper surface thereof is formed in a substantially horizontal plane, and the vertical position of the upper surface coincides with the flat surface portion 12a of the upper plate 12 (that is, has the same height as the flat surface portion 12a). Is done. A hole 15h through which the bolt 7 is inserted penetrates the upper surface of the base portion 15a. Moreover, the pipe nut 18 joined in the attitude | position in which an axial direction becomes an up-down direction is provided in the back surface of the base 15a.

  The pipe nut 18 is joined to the base portion 15a so that the upper end thereof communicates with the hole portion 15h, and the lower end thereof is disposed through the transmission member 17. As for the pipe nut 18, the inner peripheral surface of an upper end part and the outer peripheral surface of a lower end part are each threaded. That is, a thread groove is formed on the inner peripheral surface of the upper end portion of the pipe nut 18 and a thread (not shown) is formed on the outer peripheral surface of the lower end portion. The bolt 7 is fastened to the upper end side of the pipe nut 18. On the other hand, a nut (not shown) is fastened to the lower end side of the pipe nut 18 below the transmission member 17.

  On the upper surface of the upper plate 12, two rear brackets 16 are arranged behind the front bracket 15 with a gap in the vehicle width direction. The rear bracket 16 is a part serving as a base for fixing the steering gear box 1 with bolts 7. The rear bracket 16 of the present embodiment is provided by a part of the inclined surface portion 12b of the upper plate 12 bulging upward, and is formed in a planar shape formed at the same height as the base portion 15a of the front bracket 15. Having an upper surface.

  A hole 16h through which the bolt 7 is inserted penetrates the upper surface of the rear bracket 16. Further, a pipe nut 16n joined in a posture in which the axial direction is the vertical direction is provided on the rear surface of the rear bracket 16. The pipe nut 16n is shorter than the pipe nut 18 joined to the front bracket 15, and a thread groove is formed on the entire inner peripheral surface. The pipe nut 16n is joined to the rear bracket 16 so that its upper end communicates with the hole 16h, and its lower end is disposed in the rear bracket 16. The bolt 7 is fastened to the pipe nut 16n.

  The lower plate 13 is a plate-like member provided separately from the upper plate 12. The lower plate 13 is disposed below the lower arm 10, the exhaust pipe 31, and the transfer 32 and is supported by the side member 30. The lower plate 13 extends in the front-rear direction below the fixed surface portions 12 c located on both sides of the upper plate 12 in the vehicle width direction, and is fixed to the upper plate 12 via the lower arm 10. A through hole (not shown) through which the bolt 19 is inserted is provided in the front part and the intermediate part of the lower plate 13. A fixing hole 13 f for fixing the lower plate 13 to the side member 30 is provided at the rear portion of the lower plate 13. The fixing hole 13f is provided at a position that does not overlap the upper plate 12 in the vertical direction, and a bolt (not shown) is inserted from below.

  The reinforcing member 14 is a plate-like member that reinforces the suspension cloth 11. The reinforcing member 14 is extended in the vehicle width direction so that the normal line is directed in the vertical direction, and connects the front portions of the lower plates 13. The reinforcing member 14 has flange portions projecting downward at both edge portions along the extending direction, and a U-shaped cross section (vertical cross section along the front-rear direction) orthogonal to the extending direction is opened downward. It is formed. The reinforcing member 14 has through holes (not shown) through which bolts 19 are inserted at both ends in the vehicle width direction, and the holes are arranged so as to overlap the through holes formed in the front portion of the lower plate 13. That is, the reinforcing member 14 is fixed to the upper plate 12 together with the lower plate 13.

  The reinforcing member 14 of the present embodiment is joined to the lower surface of the front portion of the lower plate 13 by welding before the lower plate 13 and the lower arm 10 are connected. That is, the two lower plates 13 are connected to the lower arm 10 in a state of being integrated with the reinforcing member 14. The reinforcing member 14 is disposed at the foremost position in the suspension cloth 11 and has a function of receiving a load from the front during a frontal collision of the vehicle (hereinafter simply referred to as a collision) in addition to a function of improving the strength and rigidity of the suspension cloth 11. have.

  The transmission member 17 is a plate-like member that connects the reinforcing member 14 and each lower plate 13. The transmission member 17 is extended in the front-rear direction from the reinforcing member 14 in the posture in which the normal line is directed in the vertical direction, is bent at the intermediate portion, and is extended obliquely rearward toward the outside. The The transmission member 17 has a front end joined to the upper surface near the end of the reinforcing member 14 and a rear end joined to the upper surface of the intermediate portion of the lower plate 13. The transmission member 17 has a through hole (not shown) penetrating at the rear end thereof, and a bolt 19 that connects the rear side of the lower arm 10 is inserted into the hole, and is fixed to the lower plate 13. The transmission member 17 has a through hole (not shown) formed in a bent portion. The pipe nut 18 is inserted through this hole.

  Next, the configuration of the steering gear box 1 and the stabilizer 2 will be described. As shown in FIGS. 1 to 3, the steering gear box 1 is disposed above the suspension cross 11 so as to extend in the vehicle width direction, and is disposed at the front and rear in each of two locations spaced in the vehicle width direction. The two bolts 7 are fixed to the suspension cross 11. The steering gear box 1 is configured by joining a cylinder tube 1a having an oil chamber formed therein and a casing 1b formed by casting.

  A piston (not shown) is arranged in the cylinder tube 1a so as to partition two oil chambers, and a rack shaft 1c (see FIG. 4) coupled to the piston is axially (ie, in the vehicle width direction). It can be moved freely. A support arm (not shown) of the front wheel FW (steering wheel) is connected to the end of the rack shaft 1c opposite to the piston via a tie rod 1d.

  The casing 1b is disposed on the right side of the center of the steering gear box 1 in the vehicle width direction, and supports an input shaft (not shown) connected to the lower end portion of the steering shaft so as to be rotatable. Inside the casing 1b, a pinion formed on the input shaft is accommodated, and a rack shaft 1c on which a rack (not shown) that meshes with the pinion is accommodated movably in the axial direction. An attachment portion 1e for attaching the steering gear box 1 to the suspension cross 11 is integrally formed in the casing 1b.

  The stabilizer 2 is a member that connects the left and right suspension devices, and is disposed above the suspension cross 11 and below the steering gear box 1 as shown in FIGS. 2 and 3. The stabilizer 2 has a torsion part 2a that extends linearly in the vehicle width direction, and left and right arm parts 2b that are curved from both ends of the torsion part 2a toward the front outside and then extend linearly. In addition, the arm part 2b has the site | part curvedly formed also in the front-end | tip.

  As shown in FIG. 2, the stabilizer 2 is provided with two stabilizer bushes 3 fitted to the outer peripheral surface with an interval in the vehicle width direction. The stabilizer bush 3 is a buffer material for elastically fixing the stabilizer 2 to the suspension cloth 11, and is formed of an elastically deformable material such as rubber or resin. The stabilizer 2 is attached to the suspension cross 11 by fixing the stabilizer bush 3 to the suspension cross 11 by a first bracket 4 described later. The stabilizer bush 3 of the present embodiment is formed in a substantially rectangular parallelepiped shape, and is externally fitted to the stabilizer 2 in the vicinity of both ends of the torsion part 2a of the stabilizer 2.

[1-2. Mounting structure]
Next, the mounting structure of this embodiment will be described in detail. As shown in FIG. 2, in this mounting structure, four bolts 7 for fixing the steering gear box 1 to the suspension cross 11 are also used for fixing the stabilizer 2. That is, the bolt 7 is shared by the steering gear box 1 and the stabilizer 2.

  The steering gear box 1 and the stabilizer 2 are attached by four bolts 7 from above the suspension cross 11 with the first bracket 4 sandwiched therebetween. That is, the steering gear box 1, the first bracket 4, and the stabilizer 2 are sequentially arranged from the top by two bolts 7 arranged at the front and rear at two left and right positions spaced from each other in the vehicle width direction with respect to the suspension cross 11. It is attached.

  The first bracket 4 is a member for fixing the stabilizer 2 to the suspension cross 11. The first bracket 4 of the present embodiment is composed of a single flat plate member extending in the vehicle width direction, and is disposed on the upper surface of the flat portion 12 a of the upper plate 12 of the suspension cross 11. As shown in FIGS. 2 and 3, the first bracket 4 has a front edge that is curved forward from the vehicle width direction intermediate portion 4a (hereinafter referred to as the intermediate portion 4a) to the left and right ends when viewed from above. Both left and right ends are shaped to be longer in the front-rear direction than the intermediate portion 4a. These both end portions are placed over the upper surface of the front bracket 15 and the upper surface of the rear bracket 16, respectively. Hereinafter, these both end portions are referred to as a fixing portion 4b.

  The fixing portion 4b is a portion extending in the front-rear direction on both the left and right sides of the intermediate portion 4a, and has bolt holes 4h through which the bolts 7 are respectively inserted into the front end portion and the rear end portion. The first bracket 4 is fixed to the suspension cross 11 by inserting bolts 7 into bolt holes 4 h provided at the four corners in a state of being erected on the front bracket 15 and the rear bracket 16. That is, the first bracket 4 is provided so that the front bolt hole 4 h communicates with the hole 15 h of the front bracket 15 in the installed state of the first bracket 4, and the rear bolt hole 4 h is connected to the rear bracket 16. It is provided so as to communicate with the hole 16h.

  As shown in FIGS. 2, 4 and 5, the stabilizer bush 3 is disposed between two bolts 7 arranged on the inclined surface portion 12b of the upper plate 12 and arranged in the front-rear direction. The stabilizer bush 3 of the present embodiment is arranged so as to overlap the cylinder tube 1a of the steering gear box 1 in the vertical direction, and is arranged so that the front surface of the stabilizer bush 3 is in surface contact with the rear surface of the base portion 15a of the front bracket 15. Is done. The left and right fixing portions 4b of the first bracket 4 are in contact with the upper surfaces of the two stabilizer bushes 3, respectively. That is, the stabilizer bush 3 is sandwiched between the fixing portion 4 b of the first bracket 4 and the upper plate 12, and the fixing portion 4 b is pressed by being fixed to the front bracket 15 and the rear bracket 16 to be fixed to the suspension cross 11. Is done.

  As described above, the steering gear box 1 is fixed to the suspension cross 11 by the two bolts 7 disposed on the front side and the rear side of the steering gear box 1 at two positions on the left and right sides with a space in the vehicle width direction. The The steering gear box 1 of the present embodiment has a different configuration at the left and right fixed locations.

  A mounting portion 1e integrally formed with the casing 1b is provided at the right fixed portion. That is, the right side of the steering gear box 1 is fixed to the suspension cross 11 by the attachment portion 1 e being fastened to the suspension cross 11 by the two bolts 7. As shown in FIG.2 and FIG.5, the attaching part 1e has the two holes 1h penetrated up and down and the bolt 7 is penetrated. The two holes 1h are arranged on the front and rear sides of the rack shaft 1c, and the two bolt holes 4h on the right fixed part 4b of the first bracket 4 with the mounting part 1e arranged on the first bracket 4. And communicate with each other.

  On the other hand, a second bracket 5 and a steering bush 6 are provided at the left fixed portion as shown in FIGS. The steering bush 6 is a buffer material formed of an elastically deformable material (for example, an elastic member such as rubber or resin), and is fitted on the cylinder tube 1 a of the steering gear box 1. In the steering bush 6 of the present embodiment, the lower surface and both side surfaces orthogonal to the axial direction are flat, the upper surface is formed into an arc-shaped curved surface, and both side surfaces along the axial direction are formed into a smooth curved surface continuous with the upper surface. Has been.

  The second bracket 5 is a member for fixing the steering gear box 1 to the suspension cross 11 via the steering bush 6. The second bracket 5 of the present embodiment is formed in a substantially hat shape with a rectangular flat plate being curved, and an intermediate portion 5a that covers the upper surface of the steering bush 6 and both side surfaces along the axial direction, and bolts 7 are inserted. And a fixing portion 5b in which a hole portion 5h is formed. The fixing portion 5b is provided on the front side and the rear side of the intermediate portion 5a extending in the front-rear direction. In other words, the fixed portion 5b is disposed at the front and rear with the steering gear box 1 interposed therebetween. The hole 5h of the fixing portion 5b is provided so as to communicate with the two bolt holes 4h in the fixing portion 4b on the left side of the first bracket 4 in a state where the second bracket 5 is disposed on the first bracket 4. It is done.

  That is, the left and right stabilizer bushes 3 are first disposed between the front bracket 15 and the rear bracket 16 of the suspension cross 11 at the left and right fixed locations, respectively. Next, by arranging the first bracket 4 from above, the fixing portions 4 b of the first bracket 4 abut on the upper surfaces of the left and right stabilizer bushes 3.

  At the right fixed location, a mounting portion 1e of the steering gear box 1 is further arranged from above the first bracket 4. The front bolt 7 is inserted through the hole 1h, the bolt hole 4h, and the hole 15h, and is fastened and fixed to the pipe nut 18. On the other hand, the rear bolt 7 is inserted through the hole 1h, the bolt hole 4h, and the hole 16h, and is fastened and fixed to the pipe nut 16n.

  In addition, after the steering bush 6 that is externally fitted to the steering gear box 1 from above the first bracket 4 is arranged at the left-side fixing point, the second bracket 5 is arranged from above. The front bolt 7 is inserted into the hole 5h, the bolt hole 4h, and the hole 15h, and is fastened and fixed to the pipe nut 18. On the other hand, the rear bolt 7 is inserted through the hole 5h, the bolt hole 4h, and the hole 16h, and is fastened and fixed to the pipe nut 16n.

As a result, the steering gear box 1 is fixed to the suspension cross 11, and the stabilizer bush 3 is sandwiched and pressed between the first bracket 4 and the upper plate 12, whereby the stabilizer 2 is fixed to the suspension cross 11.
In addition, the stabilizer bush 3 of this embodiment has the protrusion part 3b protruded upwards on the upper surface 3a, as shown in FIG. The protrusion 3b is for preventing the stabilizer bush 3 from shifting in the vehicle width direction (hereinafter referred to as lateral shift), and extends in the front-rear direction along the left and right edges of the upper surface 3a.

  The first bracket 4 is provided with a locking portion 4c into which the protruding portion 3b is fitted. The locking portion 4c of the present embodiment is provided as a rectangular through hole 4f that is long in the front-rear direction at the approximate center of the fixing portion 4b of the first bracket 4 in the front-rear direction. The through hole 4 f is provided at a position separated from the end surface 4 d extending in the front-rear direction of the first bracket 4 by the length between the two protrusions 3 b of the stabilizer bush 3. As a result, of the two protrusions 3b of the stabilizer bush 3, one on the inner side in the vehicle width direction is fitted into the through hole 4f and the other on the outer side in the vehicle width direction is in contact with the end surface 4d. That is, since the end portion of the first bracket 4 is sandwiched between the two protrusions 3b, the lateral displacement of the stabilizer bush 3 is reliably prevented.

[2. effect]
(1) In the mounting structure described above, the stabilizer bush 3 that is externally fitted to the stabilizer 2 is disposed between the two bolts 7 that fix the steering gear box 1, and the first bracket 4 is in contact with the upper surface thereof. The stabilizer 2 is fixed by being fastened together with the bolt 7. That is, since the bolt 7 for fixing the steering gear box 1 is commonly used for fixing the stabilizer 2, an increase in the number of parts can be avoided, and an increase in weight and cost can be suppressed.

  In addition, the steering gear box 1 is fixed to the vehicle body member (suscross 11) by two bolts 7 arranged at the front and rear, the stabilizer bush 3 is arranged between the bolts 7, and the first bracket 4 has two The bolt 7 is fastened together and fixed. That is, both the steering gear box 1 and the first bracket 4 are supported at both ends, and are not cantilevered.

  For this reason, according to the above-mentioned attachment structure, since the input of the stabilizer 2 can be supported back and forth (at both ends), the rigidity of the entire attachment structure with respect to the input of the stabilizer 2 can be improved. In the case of the above-described mounting structure, unlike the above-described Patent Document 2, there is no portion recessed downward on the upper surface, so there is no risk of muddy water or sand particles entering and accumulating, and avoiding corrosion of bolts and the like. be able to.

  (2) In the mounting structure described above, the first bracket 4 is formed of a single plate material extending in the vehicle width direction, and the fixing portions 4b are provided on both the left and right sides of the intermediate portion 4a. For this reason, the first bracket 4 can also be used as a reinforcing material for the suspension cloth 11, and the rigidity of the suspension cloth 11 can be increased without increasing the number of parts.

  (3) In the mounting structure described above, the protrusion 3 b is provided on the upper surface 3 a of the stabilizer bush 3, the locking portion 4 c is provided on the first bracket 4, and the protrusion 3 b of the stabilizer bush 3 is provided on the first bracket 4. The locking part 4c is fitted. For this reason, the lateral displacement of the stabilizer bush 3 can be prevented with a simple configuration, and the effectiveness of the stabilizer 2 can be improved.

(4) In the mounting structure described above, the second bracket 5 is fixed to the suspension cross 11 via the steering bush 6 at the left fixed portion of the steering gear box 1, so that the vibration of the steering gear box 1 can be absorbed. NVH (Noise, Vibration, Harshness) performance can be improved.
(5) Since the mounting portion 1e formed integrally with the steering gear box 1 is fixed to the suspension cross 11 without a bushing, the fixing position on the right side of the steering gear box 1 is fixed to the steering gear box 1. The steering stability can be improved.

  (6) In the above-described mounting structure, the steering gear box 1 and the stabilizer 2 are arranged so as to overlap in the vertical direction between the two bolts 7, so that the mounting rigidity can be further increased. Thereby, the effectiveness of the stabilizer 2 can be improved. Moreover, it can be set as a compact arrangement | positioning and space efficiency can also be improved.

[3. Others]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
For example, the left and right fixed portions of the steering gear box 1 may have the same configuration. Alternatively, it may be configured to be fixed with a bracket without using the steering bush 6 at the left-side fixing location, or may be configured to be fixed with a bush at the right-side fixing location.
Moreover, the intermediate part 4a of the first bracket 4 may be omitted. That is, two first brackets may be provided on each of the left and right sides.

Further, the steering gear box 1 and the stabilizer bush 3 may be arranged at the same vertical position (height) without being offset in the vertical direction. That is, the steering gear box 1 and the stabilizer bush 3 may be arranged side by side in the front-rear direction between the two bolts 7 and may be fastened together by the bolts 7.
In the above embodiment, the rear bracket 16 is formed integrally with the upper plate 12. However, like the front bracket 15, the rear bracket 16 is formed separately and then joined by welding. It may be done. Further, the specific shapes and configurations of the stabilizer bush 3, the steering bush 6, and the suspension cross 11 are not particularly limited.

  In the above embodiment, the structure in which the steering gear box 1 and the stabilizer 2 are fixed to the suspension cloth 11 is illustrated, but the object to be fixed is not limited to the suspension cloth 11 and may be a suspension frame or other vehicle body member, for example. The arrangement of peripheral devices such as the exhaust pipe 31 and the transfer 32 described above is not particularly limited.

DESCRIPTION OF SYMBOLS 1 Steering gear box 1e Mounting part 2 Stabilizer 3 Stabilizer bush 3a Upper surface 3b Protrusion part 4 First bracket 4c Locking part 5 Second bracket 6 Steering bush 7 Bolt 10 Lower arm (arm member)
11 Suspension (suspension cross member, car body member)
30 Side member (car body)

Claims (6)

A steering gear box fixed to the vehicle body member by two bolts arranged at the front and rear at each of two locations spaced in the vehicle width direction;
A stabilizer that connects the left and right suspension devices;
Two stabilizer bushes that are externally fitted to the stabilizer with an interval in the vehicle width direction and disposed between the two bolts;
A mounting structure for a steering gear box and a stabilizer, comprising: a first bracket that abuts on an upper surface of the stabilizer bush and is fastened together with the two bolts to fix the stabilizer to the vehicle body member. . The vehicle body member is a suspension cross member that connects the vehicle body and an arm member that supports an axle;
2. The steering gear box and stabilizer mounting according to claim 1, wherein the first bracket is made of a single plate member extending in the vehicle width direction and abuts against the upper surfaces of the two stabilizer bushes. Construction. The stabilizer bush has a protrusion protruding upward on the upper surface,
3. The steering gear box and stabilizer mounting structure according to claim 1, wherein the first bracket has a locking portion into which the protruding portion is fitted. 2. A second bracket for fixing the steering gear box to the vehicle body member by being fastened by the two bolts via a steering bush fitted to the steering gear box. The steering gear box and stabilizer mounting structure according to any one of claims 3 to 4. The steering according to any one of claims 1 to 4, wherein the steering gear box is fixed to the vehicle body member by fastening an integrally formed mounting portion with the two bolts. Gearbox and stabilizer mounting structure. The steering gear box and the stabilizer according to any one of claims 1 to 5, wherein the steering gear box and the stabilizer are arranged so as to overlap vertically between the two bolts. Mounting structure.

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