JP6991023B2 - Steering device - Google Patents

Description

The present invention relates to a steering device used in a vehicle.

As a conventional power steering device, for example, the technique described in Patent Document 1 has been proposed.

Patent Document 1 discloses a technique in which a bracket is provided on the steering rack housing and the steering rack housing is fixed to the vehicle body via the bracket. The bracket is provided with an inner member and an elastic member at the portion where the bolt is inserted, whereby the steering rack housing is vibration-proofed with respect to the vehicle body.

Japanese Patent No. 4255067

In the technique described in Patent Document 1, vibration isolation between the steering rack housing and the vehicle body is taken into consideration. For example, a flange portion is provided to regulate the rotation of the inner member, and the steering rack housing is provided on the flange portion. When it comes into contact with a part of the metal, abnormal noise may be generated due to the contact between the metals.

Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a steering device that suppresses the generation of abnormal noise due to contact between metals.

According to the present invention, as one aspect thereof, the gear housing is provided with a bracket portion made of a metal material and a first insulator rotation restricting portion, and an insulator accommodating hole is formed in the bracket portion to rotate the first insulator. The restricting portion is provided with a rotation restricting surface, and the first tubular main body portion of the first insulator provided with the first elastic portion is inserted into the insulator accommodating hole, and the first flange of the first insulator made of a metal material is inserted. A cushioning portion is provided in the portion, and the cushioning portion is sandwiched between the rotation restricting surface and the first flange portion as the first insulator rotates.

According to the present invention, it is possible to provide a steering device that suppresses the generation of abnormal noise due to contact between metals.

It is a figure which looked at the gear housing which concerns on 1st Embodiment of this invention from above at the time of mounting on a vehicle. It is an enlarged view of the part A in FIG. FIG. 2 is a sectional view taken along line BB in FIG. 2 before the gear housing is attached to the vehicle. FIG. 2 is a sectional view taken along the line BB in FIG. 2 after the gear housing is attached to the vehicle. It is an enlarged view of the part A of FIG. 1 in the state where the 1st flange part is rotated. It is sectional drawing of the 1st insulator which concerns on 2nd Embodiment of this invention. It is a top view of the 1st insulator which concerns on 3rd Embodiment of this invention. It is a top view of the 1st insulator which concerns on 4th Embodiment of this invention. It is sectional drawing of the 1st insulator which concerns on 5th Embodiment of this invention. It is external perspective view of the 1st insulator and the 2nd insulator which concerns on 6th Embodiment of this invention. It is a side view of the 1st insulator and the 2nd insulator which concerns on 6th Embodiment of this invention. It is sectional drawing of the 1st insulator and 2nd insulator which concerns on 7th Embodiment of this invention.

Hereinafter, examples of the steering device according to the present invention will be described with reference to the drawings. The present invention is not limited to the following examples, and various modifications and applications are included in the technical concept of the present invention.

FIG. 1 is a view of the gear housing according to the first embodiment of the present invention as viewed from above when mounted on a vehicle. The upper side of the paper is the front in the front-rear direction of the vehicle, and the lower side of the paper is the rear in the front-rear direction of the vehicle. Further, the left side of the paper is the left in the vehicle width direction, and the right side of the paper is the right in the vehicle width direction.

In FIG. 1, the gear housing 100 is made of a metal material and includes a rack bar accommodating portion 101, a bracket portion 102 for attaching the gear housing 100 to a vehicle, and a first insulator rotation regulating portion 103.

The rack bar accommodating portion 101 accommodates the rack bar 104 that moves left and right in the vehicle width direction. The rack bar accommodating portion 101 has a tubular shape and accommodates at least a part of the rack bar 104. Both ends of the rack bar 104 are connected to corresponding steering wheels via ball joints, tie rods, knuckle arms, etc. (not shown), and a steering mechanism 105 and an assist mechanism 106 are attached to the gear housing 100. The steering mechanism 105 is provided with a steering shaft 107 and a pinion (not shown) formed on the steering shaft 107. The rack bar 104 is formed with a rack 104a that meshes with a pinion. Then, when the driver operates a steering not shown, this rotation is transmitted to the steering shaft 107, and the pinion rotates. When the pinion rotates, the rack 104a meshing with the rack 104a moves the rack bar 104 in the vehicle width direction (left-right direction), and the direction of the steering wheel is changed via the ball joint, the tie rod, the knuckle arm, and the like.

Further, the assist mechanism 106 is provided with an electric motor 108 and a speed reducer 109 that transmits the driving force of the electric motor 108 to the rack bar 104. A motor pulley is attached to the rotating shaft of the electric motor 108. A ball screw groove is formed in the rack bar 104, and a cylindrical nut pulley is provided so as to cover the outer periphery of the ball screw groove. The motor pulley and the nut pulley are connected by an endless belt, and the driving force of the electric motor 108 is transmitted to the nut pulley. The nut pulley is formed to have a larger diameter than the motor pulley, and the rotation speed of the electric motor 108 is decelerated and transmitted to the nut pulley. A ball screw groove is also formed on the inner peripheral surface of the nut pulley, and meshes with the ball screw groove on the rack bar 104 side.

The driving force of the electric motor 108 is transmitted to the motor pulley, the nut pulley, and the rack bar 104, and the assist force corresponding to the steering operation of the driver is transmitted to the rack bar 104.

Next, the configuration of the bracket portion 102 will be described. FIG. 2 is an enlarged view of part A in FIG. FIG. 3A is a sectional view taken along the line BB in FIG. 2 before the gear housing is attached to the vehicle. FIG. 3B is a sectional view taken along the line BB in FIG. 2 after the gear housing is attached to the vehicle.

The bracket portion 102 includes a bracket main body portion 201 and an insulator accommodating hole 202.

The bracket main body 201 passes through the center of the inner peripheral surface of the rack bar accommodating portion 101 in a cross section orthogonal to the longitudinal direction of the rack bar 104, and has an axis parallel to the longitudinal direction of the rack bar 104 as the first reference axis 110 (FIG. 1). , It is provided on the outside of the rack bar accommodating portion 101 in the radial direction of the first reference axis 110.

The insulator accommodating hole 202 has a circular cross-sectional shape parallel to the second reference axis 203 that does not intersect the first reference axis 110 and centered on the second reference axis 203, and has a through hole that penetrates the bracket main body 201. It has become.

The first insulator rotation regulation unit 103 includes a rotation regulation unit main body portion 204 and a rotation regulation surface 205. The rotation restricting portion main body portion 204 overlaps with the bracket portion 102 in the direction of the first reference axis 110, and is provided so as to be offset from the bracket portion 102 in the circumferential direction of the first reference axis 110.

The first insulator 206 is inserted into the insulator accommodating hole 202. The first insulator 206 includes a first core metal 207 and a first elastic portion 208. Further, the first insulator 206 is provided with a through hole 209 into which a bolt 403 described later is inserted.

The first core metal 207 includes a first cylindrical main body portion 207a and a first flange portion 207b, and is made of a metal material.

The first elastic portion 208 is provided between the bracket main body portion 201 and the first tubular main body portion 207a in the radial direction of the second reference axis 203, and is made of an elastic material such as rubber. The first tubular main body portion 207a is inserted into the insulator accommodating hole 202, the first elastic portion 208 and the bracket main body portion 201 come into contact with each other, and the first insulator 206 is held in the insulator accommodating hole 202 by the frictional resistance. To.

A cushioning portion 301 is provided between the rotation restricting surface 205 and the first flange portion 207b in the radial direction of the second reference axis 203. The first insulator 206 rotates by tightening the bolts 403 when the gear housing 100 and the fixing portion 401 of the vehicle, which will be described later, are fastened with the bolts 403, but the rotation is restricted by the rotation restricting surface 205. The cushioning portion 301 is formed of an elastic material such as rubber, and is sandwiched between the rotation restricting surface 205 and the first flange portion 207b as the first insulator 206 rotates on the second reference axis 203. The cushioning portion 301 is integrally formed with the first flange portion 207b. In this embodiment, the cushioning portion 301 and the first flange portion 207b are integrally formed, and the cushioning portion 301 and the rotation restricting surface 205 can slide relative to each other. Therefore, the friction of the cushioning portion 301 is caused by the first elastic portion 208. The influence on the characteristics can be suppressed.

Further, the friction coefficient of the cushioning portion 301 may be smaller than the friction coefficient of the first elastic portion 208. In this case, it is possible to suppress the influence of the cushioning portion 301 on the first elastic portion 208 when it slides on the rotation restricting surface 205.

Further, the cushioning portion 301 may be formed integrally with the first elastic portion 208. In this case, since the cushioning portion 301 and the first elastic portion 208 can be molded at the same time, the manufacturability can be improved.

Below the bracket portion 102, a vehicle fixing portion 401 is provided. In this embodiment, the fixed portion 401 side of the vehicle is the lower side, and the bracket portion 102 side is the upper side.

A second insulator 210 is provided on the lower side of the first insulator 206 (on the side of the fixed portion 401 of the vehicle). The second insulator 210 is inserted into the insulator accommodating hole 202. The second insulator 210 is arranged in the insulator accommodating hole 202 so as to face the first insulator 206. The second insulator 210 includes a second core metal 211 and a second elastic portion 212. Further, the second insulator 210 is provided with a through hole 213 into which a bolt 403 described later is inserted.

The second core metal 211 includes a second cylindrical main body portion 211a and a second flange portion 211b, and is made of a metal material.

The second elastic portion 212 is provided between the bracket main body portion 201 and the second tubular main body portion 211a in the radial direction of the second reference axis 203, and is made of an elastic material such as rubber. The second tubular main body portion 211a is inserted into the insulator accommodating hole 202, the second elastic portion 212 and the bracket main body portion 201 come into contact with each other, and the second insulator 210 is held in the insulator accommodating hole 202 by the frictional resistance. To.

The second flange portion 211b has a shape protruding outward in the radial direction of the second reference axis 203 from the second cylindrical main body portion 211a. Further, a protruding portion 211c is formed on the flat surface portion of the second flange portion 211b so as to project on the side opposite to the second tubular main body portion 211a.

Next, a method of fixing the gear housing 100 to the fixing portion 401 of the vehicle will be described. The fixing portion 401 of the vehicle is formed with a fastening hole 402 into which a fastening bolt 403 is inserted.

The bolt 403 is inserted from the fixed portion 401 of the vehicle, penetrates the fixed portion 401 of the vehicle, and is inserted into the insulator accommodating hole 202, the through hole 213 of the second insulator 210 (second core metal 211), and the first insulator 206 ( It is inserted into the through hole 209 of the first core metal 207).

A spiral thread groove is formed in advance on the inner peripheral surface of the through hole 209 of the first insulator 206, and the bracket main body 201 is fastened to the vehicle by engaging with the screw thread of the bolt 403. Since the threaded groove of the through hole 209 in the first insulator 206 acts as a nut, it is not necessary to form a threaded groove on the inner peripheral surface of the through hole 213 of the second insulator 210.

Since the second elastic portion 212 and the first elastic portion 208 are provided between the outer periphery of the second insulator 210 and the first insulator 206 and the insulator accommodating hole 202, the second elastic portion is provided with the rotation of the bolt 403. 210, it is possible to suppress the rotation of the first insulator 206 in the insulator accommodating hole 202.

When the bolt 403 is tightened, the protruding portion 211c of the second flange portion 211b finally crushes the fixed portion 401 of the vehicle, and the protruding portion 211c bites into the fixed portion 401 of the vehicle. As a result, the bracket portion 102 and the vehicle are firmly fixed, and the gear housing 100 is fastened to the fixed portion 401 of the vehicle by the bolt 403.

When fastening with the bolt 403, when the bolt 403 begins to receive a tensile force, the frictional force between the contact surfaces of the first tubular main body portion 207a and the second tubular main body portion 211a is the first elastic portion 208 and the second elastic portion 208. It is larger than the frictional force between the elastic portion 212 and the bracket portion 102.

Thereby, in this embodiment, when the bolt 403 is fastened, the frictional force of the second insulator 210 can be utilized to suppress the rotation of the first insulator 206.

Further, the bracket main body 201 is received by the second elastic portion 212 provided on the second tubular main body 211a side of the second flange portion 211b. Since the bracket main body 201 does not come into contact with the vehicle side, it is possible to suppress the generation of abnormal noise due to the contact between the metals.

When fastening the bolt 403, the first insulator 206 is provided with a detent mechanism. The detent mechanism will be described with reference to FIGS. 3A, 3B, and 4. FIG. 4 is an enlarged view of part A of FIG. 1 in a state where the first flange portion 207b is rotated.

The first flange portion 207b has a shape protruding outward in the radial direction of the second reference axis 203 from the first cylindrical main body portion 207a, and the first flange portion 207b in the second reference axis 203. The maximum outer diameter (L1) is larger than the shortest distance (L2) between the second reference axis 203 and the rotation control surface 205 (see FIG. 2).

The first flange portion 207b includes a first flat surface portion 220 and a second flat surface portion 221. The first plane portion 220 is provided on the outer peripheral side of the second reference axis 203 and has a plane shape parallel to the second reference axis 203.

The second plane portion 221 is provided on the outer peripheral side of the second reference axis 203, has a plane shape parallel to the first plane portion 220, and has a position symmetrical with the first plane portion on the second reference axis 203. Be prepared for.

When the first insulator 206 is inserted so that the first plane portion 220 faces the rotation restricting surface 205, the first insulator 206 rotates the first insulator 206 on the side opposite to the rotation regulating surface 205 with respect to the first insulator 206. Place a regulated surface, which is a jig that regulates the position. Then, by inserting the first insulator so that the second plane portion 221 is along the regulation surface, it is possible to prevent the first flange portion 207b and the rotation regulation surface 205 from buffering on the first plane portion 220 side. This makes it possible to improve the workability of inserting the first insulator 206.

In this embodiment, by providing the first flat surface portion 220, the first flange portion 207b can be separated from the rotation restricting surface 205 when the rotation position of the first insulator 206 on the second reference axis 203 is at a predetermined position. It has become.

With this configuration, in this embodiment, the first insulator 206 is inserted into the bracket portion 102 at a position where the first flange portion 207b and the rotation restricting surface 205 are separated from each other, so that the first insulator 206 can be assembled easily. Can be improved.

When the bolt 403 is tightened with the first insulator 206 inserted, the first insulator 206 rotates, the first flange portion 207b comes into contact with the rotation restricting surface 205, and the rotation of the first flange portion 207b is restricted.

The rotation control surface 205 is made of metal, and the first flange portion 207b is also made of metal. When members made of metal come into contact with each other, abnormal noise may occur. In this embodiment, the above-mentioned cushioning portion 301 is provided on the first flange portion 207b in order to suppress the generation of abnormal noise due to the contact between the metals.

In this embodiment, since the shock absorber 301 is sandwiched between the rotation control surface 205 and the first flange portion 207b as the first insulator 206 rotates on the second reference axis 203, abnormal noise is generated due to the contact between the metals. Can be suppressed.

Further, in this embodiment, the cushioning portion 301 and the first flange portion 207b are integrally formed, and the cushioning portion 301 and the rotation restricting surface 205 can slide relative to each other, so that the friction of the cushioning portion 301 is the first elastic portion. The influence on the characteristics of 208 can be suppressed.

Next, a second embodiment of the present invention will be described. FIG. 5 is a cross-sectional view of the first insulator 206 according to the second embodiment of the present invention. The same reference numerals are given to the configurations common to those of the first embodiment.

The cushioning portion 301 is integrally provided with the first flange portion 207b.

The cushioning portion 301 is also provided on the side of both end faces of the first flange portion 207b in the direction of the second reference axis 203 facing the bracket main body portion 201 (buffering portion 301a).

According to the second embodiment, by sandwiching the cushioning portion 301a between the bracket main body portion 201 and the first flange portion 207b, it is possible to obtain a cushioning effect in the direction of the second reference axis 203. Further, since the coefficient of friction between the bracket main body 201 and the first flange 207b increases, the first when the gear housing 100 is fastened to the vehicle fixing portion 401 or the like by the bolt 403 passed through the first insulator 206. The rotation of the insulator 206 can be suppressed.

Next, a third embodiment of the present invention will be described. FIG. 6 is a top view of the first insulator 206 according to the third embodiment of the present invention. The same reference numerals are given to the configurations common to those of the first and second embodiments.

The first flange portion 207b is formed with a first plane portion 220 and a second plane portion 221 at positions facing the second reference axis 203 in the circumferential direction. The cushioning portion 301 is provided on the first flat surface portion 220 and the second flat surface portion 221, respectively.

According to the third embodiment, when the first insulator 206 is inserted into the insulator accommodating hole 202, the cushioning effect can be obtained regardless of which side the first insulator 206 is inserted in the rotation direction.

Next, a fourth embodiment of the present invention will be described. FIG. 7 is a top view of the first insulator 206 according to the fourth embodiment of the present invention. The same reference numerals are given to the configurations common to those of the third embodiment.

The first flange portion 207b is formed with a first plane portion 220 and a second plane portion 221 at positions facing each other in the circumferential direction on the second reference axis 203.

In the fourth embodiment, in addition to the third embodiment in which the cushioning portion 301 is provided on the first flat surface portion 220 and the second flat surface portion 221, the cushioning portion 301 is also provided at a location other than the first flat surface portion 220 and the second flat surface portion 221. Is provided. That is, in the fourth embodiment, the cushioning portion 301 is provided on the entire circumference of the first flange portion 207b in the circumferential direction on the second reference axis.

According to the fourth embodiment, the buffering effect can be obtained regardless of the rotation position of the first insulator.

Next, a fifth embodiment of the present invention will be described. FIG. 8 is a cross-sectional view of the first insulator 206 according to the fifth embodiment of the present invention. The same reference numerals are given to the configurations common to those of the first embodiment.

The cushioning portion 301 is integrally provided with the first flange portion 207b. The cushioning portion 301 has a cushioning portion contact surface 301b whose outer peripheral surface in the second reference axis is parallel to the second reference axis, and the cushioning portion contact surface 301b is the entire area F in the direction of the second reference axis 203. It is possible to come into contact with the rotation restricting surface 205.

According to the fifth embodiment, when the cushioning portion contact surface 301b partially abuts on the rotation restricting surface 205, a shearing force may be generated between the abutting portion and the non-contacting portion. The generation of shearing force can be suppressed by abutting the rotation restricting surface 205 on the entire area F of the surface 301b.

Next, a sixth embodiment of the present invention will be described. FIG. 9A is an external perspective view of the first insulator 206 and the second insulator 210 according to the sixth embodiment of the present invention. FIG. 9B is a side view of the first insulator 206 and the second insulator 210 according to the sixth embodiment of the present invention. The same reference numerals are given to the configurations common to those of the first embodiment.

The first cylindrical main body portion 207a has a first tubular main body portion protruding portion 310 projecting to the side facing the second tubular main body portion 211a.

Further, the second tubular main body portion 211a has a second tubular main body portion protruding portion 320 projecting to the side facing the first tubular main body portion 207a.

A plurality of first tubular body protrusions 310 and second tubular body protrusions 320 are provided in the circumferential direction about the second reference axis 203, respectively. Then, among the plurality of first tubular main body protrusions 310, the second tubular main body protrusion 320 is inserted between the adjacent first tubular main body protrusions 310, whereby the first tubular main body is formed. The protruding portion 310 and the protruding portion 320 of the second cylindrical main body mesh with each other.

According to the sixth embodiment, the relative rotation of the first cylindrical main body portion 207a and the second tubular main body portion 211a is suppressed, and the frictional force of the second insulator 210 is obtained more efficiently when the bolt 403 is fastened. Can be done.

Next, a seventh embodiment of the present invention will be described. FIG. 10 is a cross-sectional view of the first insulator 206 and the second insulator 210 according to the seventh embodiment of the present invention. The same reference numerals are given to the configurations common to those of the first embodiment.

The first cylindrical main body portion 207a is formed with a protruding portion 330 at a portion facing the second tubular main body portion 211a.

Further, the second tubular main body portion 211a is formed with a protruding portion 340 at a portion facing the first tubular main body portion 207a.

The protrusion 330 is located inside the protrusion 340 in the radial direction of the second reference axis 203. Further, the protrusion 340 is located outside the protrusion 330 in the radial direction of the second reference axis 203.

Then, when the first cylindrical main body portion 207a and the second tubular main body portion 211a are abutted against each other, the outer peripheral surface of the protruding portion of the first tubular main body portion 207a and the inner peripheral surface of the protruding portion of the second tubular main body portion 211a are 341. Come in contact with. In this way, one of the first cylindrical main body portion 207a and the second tubular main body portion 211a is press-fitted and fixed to the other.

According to the seventh embodiment, by connecting the first cylindrical main body portion 207a and the second tubular main body portion 211a by press fitting, the frictional force of the second insulator 210 can be more efficiently applied when the bolt 403 is fastened. Obtainable.

The present invention described above is not limited to the above-described embodiment, and includes various modifications. The above-mentioned examples have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations.

100 Gear housing, 101 Rack bar accommodating part, 102 Bracket part, 103 1st insulator rotation control part, 104 rack bar, 104a rack, 110 1st reference axis, 201 Bracket body, 202 Insulator accommodating hole, 203 2nd reference axis , 204 rotation control part main body, 205 rotation control surface, 206 first insulator, 207 first core metal, 207a first cylindrical body part, 207b first flange part, 208 first elastic part, 209 through hole, 210 second Insulator, 211 2nd core metal, 211a 2nd cylindrical body, 211b 2nd flange, 211c protruding part, 212 2nd elastic part, 213 through hole, 220 1st flat part, 221 2nd flat part, 301 cushioning part , 301a Cushioning part, 301b Cushioning part contact surface, 310 1st cylindrical body part protrusion, 320 2nd tubular body part protrusion, 330 projecting part, 331 projecting part outer peripheral surface, 340 projecting part, 341 projecting part inner circumference Surface, 401 fixing part, 402 fastening hole, 403 bolt

Claims (14)

A gear housing made of a metal material including a rack bar and a rack bar accommodating portion accommodating at least a part of the rack bar and a bracket portion serving as a fixing point to the vehicle body is provided, and an insulator accommodating hole of the bracket portion is provided. It is a steering device that is fixed to the car body by bolts passed through the fastening holes of the fixing part of the car body.
A first insulator having a through hole that is inserted into the insulator accommodating hole and into which the bolt is inserted, and a first insulator that is inserted into the insulator accommodating hole and faces the first insulator in the insulator accommodating hole and the bolt is inserted. With a second insulator, which has a through hole to be
A screw groove that meshes with the thread of the bolt is formed on the inner peripheral surface of the through hole of the first insulator.
The first insulator includes a first core metal formed of a metal material and a first elastic portion arranged between the first core metal and the bracket portion.
The second insulator includes a second core metal formed of a metal material and a second elastic portion arranged between the second core metal and the bracket portion.
The first core metal includes a first cylindrical main body portion inserted into the insulator accommodating hole, and a first flange portion protruding radially outward from the first tubular main body portion.
The second core metal includes a second cylindrical main body portion inserted into the insulator accommodating hole, and a second flange portion protruding radially outward from the second tubular main body portion.
The first flange portion includes a first flat surface portion formed in a plane shape and a cushioning portion arranged radially outside the first flat surface portion and formed of an elastic material .
The second elastic portion is arranged on the second tubular main body side of the second flange portion so as to receive the bracket portion.
The gear housing is formed with a rotation restricting surface facing the first flat surface portion.
When the bolt is screwed into the first insulator, the screw thread and the screw groove engage with each other to tighten the second insulator and the fixing portion, and the first insulator rotates to cause the first flange portion to become the first flange portion. A steering device that comes into contact with a rotation restricting surface and sandwiches the cushioning portion between the first flange portion and the rotation restricting surface. The steering device according to claim 1.
The steering device is characterized in that the cushioning portion is integrally provided with the first flange portion. The steering device according to claim 2.
The axis that passes through the center of the inner peripheral surface of the rack bar accommodating portion and is parallel to the longitudinal direction of the rack bar in the cross section orthogonal to the longitudinal direction of the rack bar is set as the first reference axis and does not intersect with the first reference axis. , The axis centered on the insulator accommodating hole is set as the second reference axis.
The bracket portion includes a bracket main body portion.
The bracket main body is provided outside the rack bar accommodating portion in the radial direction of the first reference axis.
The steering device is characterized in that the cushioning portion is also provided on a side of both end faces of the first flange portion in the direction of the second reference axis, which faces the bracket main body portion. The steering device according to claim 3.
The steering device is characterized in that the cushioning portion is integrally formed with the first elastic portion. The steering device according to claim 2.
The axis that passes through the center of the inner peripheral surface of the rack bar accommodating portion and is parallel to the longitudinal direction of the rack bar in the cross section orthogonal to the longitudinal direction of the rack bar is set as the first reference axis and does not intersect with the first reference axis. , The axis centered on the insulator accommodating hole is set as the second reference axis.
A steering device characterized in that , in a state where the first insulator is accommodated in the insulator accommodating hole, the shock absorbers are provided at positions opposite to each other with respect to the second reference axis. The steering device according to claim 5.
The steering device is characterized in that the cushioning portion is provided on the entire circumference of the first flange portion in the circumferential direction on the second reference axis. The steering device according to claim 2.
The cushioning portion is a steering device having a friction coefficient smaller than that of the first elastic portion. The steering device according to claim 2.
The axis that passes through the center of the inner peripheral surface of the rack bar accommodating portion and is parallel to the longitudinal direction of the rack bar in the cross section orthogonal to the longitudinal direction of the rack bar is set as the first reference axis and does not intersect with the first reference axis. , The axis centered on the insulator accommodating hole is set as the second reference axis.
The outer peripheral surface of the cushioning portion has a cushioning portion contact surface parallel to the second reference axis.
The steering device, characterized in that the cushioning portion contact surface can be in contact with the rotation restricting surface in the entire area in the direction of the second reference axis. The steering device according to claim 2.
The axis that passes through the center of the inner peripheral surface of the rack bar accommodating portion and is parallel to the longitudinal direction of the rack bar in the cross section orthogonal to the longitudinal direction of the rack bar is set as the first reference axis and does not intersect with the first reference axis. , The axis centered on the insulator accommodating hole is set as the second reference axis.
A steering device characterized in that when the rotation position of the first insulator on the second reference axis is at a predetermined position, the first flange portion can be separated from the rotation regulation surface. The steering device according to claim 1.
The axis that passes through the center of the inner peripheral surface of the rack bar accommodating portion and is parallel to the longitudinal direction of the rack bar in the cross section orthogonal to the longitudinal direction of the rack bar is set as the first reference axis and does not intersect with the first reference axis. , The axis centered on the insulator accommodating hole is set as the second reference axis.
The second core metal has a protrusion and has a protrusion.
The steering device is characterized in that the protruding portion has a shape that protrudes from the second flange portion to the opposite side of the bracket portion in the direction of the second reference axis. The steering device according to claim 1.
The axis that passes through the center of the inner peripheral surface of the rack bar accommodating portion and is parallel to the longitudinal direction of the rack bar in the cross section orthogonal to the longitudinal direction of the rack bar is set as the first reference axis and does not intersect with the first reference axis. , The axis centered on the insulator accommodating hole is set as the second reference axis.
The first flange portion includes the first flat surface portion and the second flat surface portion.
The first plane portion is provided on the outer peripheral side of the second reference axis and has a plane shape parallel to the second reference axis.
The second plane portion is provided on the outer peripheral side of the second reference axis, has a plane shape parallel to the first plane portion, and is symmetrical to the first plane portion on the second reference axis. A steering device characterized by being provided at a position. The steering device according to claim 1.
When the gear housing and the fixing portion are tightened by the bolt and the bolt begins to receive a pulling force, the frictional force between the contact surface between the first tubular main body and the second tubular main body is. A steering device characterized in that it is larger than the frictional force between the first elastic portion and the second elastic portion and the bracket portion. The steering device according to claim 12.
The first cylindrical main body portion has a first tubular main body portion protrusion that protrudes to the side facing the second tubular main body portion.
The steering device is characterized in that the second tubular main body portion has a second tubular main body portion protruding portion projecting to a side facing the first tubular main body portion. The steering device according to claim 12.
A steering device characterized in that one of the first cylindrical main body portion and the second tubular main body portion is press-fitted and fixed to the other.

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