JP7178797B2 - steering device - Google Patents

Description

The present invention relates to a steering device that transmits steering force applied to a steering member.

Conventionally, a steering device has a plurality of shafts connected by universal joints. A plurality of shafts transmit the torque of the steering member between the steering wheel arranged in the passenger compartment and the rack arranged in the front section, and the relative position change of the rack with respect to the steering wheel is controlled by the universal joint. are absorbing. Generally, a partition wall is provided between the vehicle compartment and the front compartment that houses the engine, etc., and the shaft body of the steering device is arranged in a state of being inserted through a hole provided in the partition wall. there is

In Patent Document 1, in order to suppress noise and foreign matter from entering the vehicle interior through a hole through which the shaft of a steering device is inserted, a rubber-made rubber structure that closes the gap of the hole while allowing the shaft to rotate and swing is disclosed. is described.

JP 2014-129004 A

Some recent steering devices employ a structure in which a shaft inserted through a partition wall that separates a vehicle interior and a front partition is attached to the partition wall via a bearing. In such a structure, if the mounting position of the steering device is displaced when the steering device is mounted on the vehicle body, the shaft swings around when the shaft is rotated for steering, causing so-called twisting. When such whirling of the shaft occurs, a large load is generated on the bearing, the partition wall, the shaft, and the like.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a steering device that allows misalignment when the steering device is assembled to the vehicle body, and that can suppress the load generated on the partition wall, the bearing, and the shaft body. .

In order to achieve the above object, a steering device, which is one aspect of the present invention, is a steering device for steering a vehicle by operating a steering member arranged in a vehicle compartment. an outer cylindrical body fixedly attached to a partition wall that separates the vehicle compartment from the front compartment; an inner cylindrical body arranged in such a manner that the shaft body is inserted therethrough; a bearing that rotatably holds the shaft body with respect to the inner cylindrical body; and a fixed inner cylindrical body with respect to the outer cylindrical body. a deformation member that holds and deforms due to a force applied from the shaft to the inner cylindrical body via the bearing.

According to the above structure, if a deviation occurs when the steering device is assembled to the vehicle body, the deformation member deforms to absorb the deviation, and the load generated on the partition wall, the bearing, and the shaft body when the shaft body rotates. can be reduced.

Further, the deformation member may be elastically deformed by a force applied to the inner cylindrical body. According to this, the deformable member can flexibly cope with vibrations occurring in the steering device after assembly, and the partition wall, the bearing, and the shaft can be protected.

Further, the deformable member may be fixed to at least one of the inner peripheral surface of the outer cylindrical body and the outer peripheral surface of the inner cylindrical body, and may include a rigid portion that does not deform due to the force applied to the inner cylindrical body. .

According to this, the deformable member can be fixed by press-fitting between the outer tubular body and the inner tubular body, and the assembly of the steering device can be facilitated.

Further, the inner cylindrical body may be arranged so as to pass through the partition wall, the bearing may be arranged on one side of the partition wall, and the deformation member may be arranged on the other side of the partition wall.

According to this, the load applied to the steering device can be efficiently transmitted to the deformation member.

Further, the shaft may include a cylindrical outer shaft and an inner shaft slidably inserted into the outer shaft. According to this, it becomes possible for the shaft to absorb the displacement of the assembly position in the axial direction of the shaft.

According to the present invention, it is possible to reduce the load applied to the partition wall, the bearings, and the shaft when the shaft rotates, even if the steering device is misaligned when the steering device is assembled to the vehicle body.

1 is a diagram schematically showing a front portion of a vehicle to which a steering device is attached; FIG. It is a perspective view showing the steering device near the partition wall from the front partition. It is a perspective view which shows the steering device of the partition wall vicinity from a vehicle interior. It is a side view which shows a steering device from the side. It is a sectional view showing a section of a steering device from the side. It is a perspective view which shows a deformation member. It is a perspective view which shows a holding member. FIG. 4 is a cross-sectional view showing the vicinity of the holding member with the shaft extended. FIG. 4 is a cross-sectional view showing the vicinity of the holding member in a state where the shaft body is shrunk;

Next, an embodiment of a steering device according to the present invention will be described with reference to the drawings. It should be noted that the embodiments described below are all comprehensive or specific examples. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are examples and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest concept will be described as arbitrary constituent elements.

In addition, the drawings are schematic diagrams in which emphasis, omissions, and ratios are appropriately adjusted in order to illustrate the present invention, and may differ from actual shapes, positional relationships, and ratios.

FIG. 1 is a schematic diagram of a front portion of a vehicle to which a steering device is attached. As shown in the figure, the steering device 100 is a device for steering a vehicle 200 by operating a steering member 203 such as a steering wheel arranged in a vehicle compartment 201, and is a shaft body called an intermediate shaft. 110, a cylinder 120, a bearing 130 (see FIG. 5), a deformation member 140 (see FIG. 5), and a holding member 160 (see FIG. 5). The steering device 100 also includes a column shaft 151 that connects the shaft 110 and the steering member 203 via a universal joint, and a lower shaft 152 that connects the shaft 110 and the rack 153 via a universal joint. .

A vehicle 200 is a moving body such as an automobile that travels on land with tires 204, and includes a cabin 201 in which a driver rides and a front section 202 called an engine room or the like. In addition, the compartment 201 and the front section 202 are separated by a partition wall 210 called a dash panel or the like, which prevents noise and dust from entering from the front section 202 .

FIG. 2 is a perspective view showing the steering device in the vicinity of the partition wall from the front partition. FIG. 3 is a perspective view showing the steering device in the vicinity of the partition wall from the passenger compartment. FIG. 4 is a side view showing the steering device from the side. FIG. 5 is a cross-sectional view showing a cross-section of the steering device from the side.

As shown in these figures, the shaft 110 is a member that is arranged from the cabin 201 to the front section 202 and that transmits torque generated by the operation of the steering member 203 . In this embodiment, the shaft 110 includes a cylindrical outer shaft 111 and an inner shaft 112 slidably inserted into the outer shaft 111, as shown in FIG. It is a constantly sliding type intermediate shaft that can transmit and is flexible. Specifically, splines are provided on the inner peripheral surface of the outer shaft body 111 and the outer peripheral surface of the inner shaft body 112, and the ends of the outer shaft body 111 and the inner shaft body 112 are spline-fitted. .

The cylinder 120 is fixedly attached to the partition wall 210 that separates the compartment 201 and the front compartment 202, and is a member that holds the shaft 110. The cylinder 120 includes an outer cylinder 121 and an inner cylinder 122. .

The outer cylindrical body 121 is a cylindrical member attached to the partition wall 210 in a fixed state. In the case of the present embodiment, since the shaft 110 that is obliquely arranged so as to rise from the front section 202 toward the interior of the vehicle interior 201 is inserted, the outer cylindrical body 121 is positioned between the shaft of the shaft 110 and the tube axis. are fixed to the partition wall 210 so as to substantially coincide with each other. The method for fixing the outer cylinder 121 to the partition wall 210 is not particularly limited, but in the case of the present embodiment, the base end of the outer cylinder 121 has a flange 123 projecting outward. The outer cylindrical body 121 is attached to the partition wall 210 via a flange 123 by fastening. The outer cylindrical body 121 is attached to the flange 123 at a predetermined angle, and a through hole 124 is provided at a position corresponding to the inner diameter of the outer cylindrical body 121, through which the shaft 110 can be inserted.

The shape of outer cylindrical body 121 is not particularly limited as long as it has a cylindrical shape through which shaft body 110 can be inserted, but in the case of the present embodiment, a cylindrical shape is adopted. Although the material constituting the outer cylindrical body 121 is not particularly limited, it must have rigidity capable of holding the shaft body 110 together with the flange 123 . For example, the material of the outer cylindrical body 121 can be steel, stainless steel, aluminum alloy, or the like.

The inner cylindrical body 122 is a cylindrical member arranged inside the outer cylindrical body 121 and through which the shaft body 110 is inserted. The inner cylindrical body 122 rotatably holds the inner shaft body 112 inserted inward through the bearing 130 .

The shape of the inner cylindrical body 122 is not particularly limited as long as it has a cylindrical shape through which the shaft body 110 can be inserted. ing. In the case of this embodiment, the inner cylindrical body 122 is longer than the outer cylindrical body 121, penetrates the partition wall, has one end that protrudes from the outer cylindrical body 121 toward the passenger compartment 201, and has the other end It is disposed in a state of protruding toward the front section 202 beyond the partition wall 210 than the outer cylindrical body 121 .

Although the material forming the inner cylindrical body 122 is not particularly limited, it must have a rigidity capable of holding the shaft body 110 . For example, the material of the outer cylindrical body 121 can be steel, stainless steel, aluminum alloy, or the like.

The bearing 130 rotatably holds the inner shaft body 112 with respect to the inner cylindrical body 122 . In addition, the bearing may be adjusted according to the deviation of the shaft of the inner shaft body 112 from the tube axis of the outer cylindrical body 121 when the steering device 100 is attached to the vehicle 200, or the deviation of the shaft due to shaking of the inner shaft body 112 while the vehicle 200 is running. 130 follows the tube axis of the inner cylindrical body 122 . In the case of this embodiment, two bearings 130 are arranged at a predetermined interval so that the tube axis of the inner cylindrical body 122 follows the oscillating displacement of the shaft of the inner cylindrical body 112 with respect to the outer cylindrical body 121 with a strong correlation. , two bearings 130 hold the inner cylindrical body 122 against the inner shaft body 112 .

The arrangement position of the bearing 130 is not particularly limited, and it may be arranged at either end or intermediate portion of the inner cylindrical body 122 . Also, a plurality of bearings 130 may be dispersedly arranged inside the inner cylindrical body 122 . In the case of the present embodiment, bearing 130 is arranged only at one end of inner cylindrical body 122 and is arranged at a position protruding toward front section 202 .

The deformable member 140 fixedly holds the inner cylindrical body 122 with respect to the outer cylindrical body 121 , and is a force generated due to misalignment of the assembly position when the steering device 100 is attached to the vehicle 200 . It is a member that deforms between itself and the outer cylindrical body 121 due to a force applied to the inner cylindrical body 122 via the bearing 130 and exerts an alignment function. The shape, structure, material, etc. of the deformable member 140 are not particularly limited. For example, the deformation member 140 may be plastically deformed due to fragility of the material, or may be reversibly or irreversibly deformed due to structural fragility such as a porous or honeycomb structure.

FIG. 6 is a perspective view showing a deformation member. As shown in the figure, in the case of this embodiment, the deformable member 140 has an annular rubber portion 141 made of rubber or elastomer that is elastically deformed by the force generated between the outer cylindrical body 121 and the inner cylindrical body 122 . I have. As a result, not only is the deformation of the rubber portion 141 absorbed by the deformation of the shaft that occurs when the steering device 100 is assembled, but it is also possible to flexibly cope with the shaft shift caused by vibrations when the vehicle 200 is running. In addition, the deformation member 140 is fixed to the inner peripheral surface of the outer cylindrical body 121 and is a rigid body portion that is not deformed by a force applied to the inner cylindrical body 122 via the shaft 110 . and an inner rigid body portion 143 which is a rigid body portion which is not deformed by a force applied to the inner cylindrical body 122 via the shaft body 110 .

The outer rigid body portion 142 is an annular member arranged on the outer peripheral surface of the rubber portion 141 . The inner rigid body portion 143 is an annular member arranged on the inner peripheral surface of the rubber portion 141 . The material of the outer rigid body part 142 and the inner rigid body part 143 is not particularly limited as long as it has a predetermined rigidity. Although the method of joining the outer rigid body portion 142 and the inner rigid body portion 143 to the rubber portion 141 is not particularly limited, vulcanization adhesion is adopted in the present embodiment.

By providing the deformable member 140 with rigid portions including the outer rigid portion 142 and the inner rigid portion 143 , the deformable member 140 can be strongly fixed between the outer cylinder 121 and the inner cylinder 122 . A method for fixing the deformation member 140 between the outer cylinder 121 and the inner cylinder 122 is not particularly limited, and examples thereof include fastening and screwing. In the case of this embodiment, the outer rigid body portion 142 is press-fitted into the outer cylindrical body 121 and the inner cylindrical body 122 is press-fitted into the inner rigid body portion 143, so that the deformable member 140 is formed into the outer cylindrical body 121 and the inner cylindrical body 122. is fixed between

The arrangement position of the deformable member 140 is not particularly limited, and it may be arranged at either end portion or intermediate portion of the outer cylindrical body 121 . Also, a plurality of deformable members 140 may be dispersedly arranged inside the outer cylindrical body 121 . In the case of the present embodiment, deformation member 140 is arranged only at one end of outer cylindrical body 121 and is arranged at a position protruding toward compartment 201 on the opposite side of bearing 130 . As described above, by widening the distance between the bearing 130 and the deformable member 140, the allowable range of axial deviation of the shaft body 110 with respect to the outer cylindrical body 121 can be widened.

The outer cylinder 121 having the flange 123 , the deformation member 140 , the inner cylinder 122 , and the bearing 130 described above function as a mounting member that rotatably mounts the shaft 110 to the partition wall 210 . Further, the mounting member, shaft body 110, and holding member 160 are assembled inside vehicle 200 in a state of being assembled as a steering unit.

FIG. 7 is a perspective view showing a holding member. As shown in FIG. 3 and the like, the holding member 160 is a protective member that prevents foreign matter from entering the gap between the inner cylindrical body 122 and the shaft body 110 in the steering device 100 after being assembled to the vehicle 200. function as Further, in the steering device 100 before assembly to the vehicle 200, it functions as a member that holds the outer shaft body 111 with respect to the inner shaft body 112 in order to restrict unintentional extension of the telescopic shaft body 110. As shown in FIG. Specifically, the holding member 160 is a member attached to the end portion of the cylindrical body 120, and includes an annular portion 161 and a restricting portion 162, as shown in FIG. In this embodiment, the holding member 160 further includes a projecting portion 163 , an inserting portion 164 , an engaging projection 165 and a pressing projection 166 .

The annular portion 161 is an annular portion that covers the gap between the outer shaft body 111 that is inserted into the inner cylinder 122 that is one of the cylinders 120 and the inner cylinder 122 . The shape of the annular portion 161 is not particularly limited and may be partially cut off, but it must correspond to the shape of the end portion of the inner cylindrical body 122 and the outer peripheral shape of the outer shaft body 111 . . In the case of the present embodiment, both the inner cylindrical body 122 corresponding to the position where the annular portion 161 is arranged and the outer shaft body 111 have a cylindrical shape, so the annular portion 161 has a circular ring shape with a rectangular cross section. is adopted. The outer diameter of the annular portion 161 is greater than the inner diameter of the inner cylindrical body 122 , and the inner diameter of the annular portion 161 is greater than the outer diameter of the outer shaft body 111 .

The insertion portion 164 is a portion for holding the annular portion 161 on the end surface of the inner cylinder 122 by being inserted into the inner cylinder 122 . The shape of the insertion portion 164 is not particularly limited, but a cylindrical shape having an outer circumference slightly larger than the diameter of the inner circumference of the inner cylindrical body 122, or a part of the cylindrical shape is adopted. . In the case of this embodiment, the insertion portion 164 is a cylinder whose outer diameter is slightly larger than the diameter of the inner circumference of the inner cylindrical body 122, and whose inner diameter is the same as the inner diameter of the annular portion 161. It is divided into 6 equal pieces, and 3 pieces selected every other piece out of 6 pieces provided with slits between adjacent pieces correspond. Moreover, the insertion portion 164 is integrally joined to the annular portion 161 and protrudes from the annular portion 161 along the axial direction of the shaft body 110 .

At least one of the three pieces of the insertion portion 164 is provided with an engaging projection 165 protruding toward the inner cylindrical body 122 on the outer peripheral surface thereof. After the insertion portion 164 is inserted into the inner cylindrical body 122, the engaging protrusions 165 are fitted into the engaging holes 125 (see FIG. 5) provided in the inner cylindrical body 122, so that the holding member 160 is attached to the inner cylindrical body. 122 is prevented from falling out unintentionally.

The restricting portion 162 is a portion that contacts the outer peripheral surface portion of the outer shaft body 111 arranged with the end thereof inserted into the inner cylindrical body 122 and restricts the unintentional extension of the shaft body 110 . As shown in FIG. 9, the restricting portion 162 restricts axial movement of the outer shaft body 111 with respect to the inner cylindrical body 122 when the shaft body 110 is contracted. The method of restricting the outer shaft body 111 by the restricting portion 162 is not particularly limited. may be regulated.

In the case of the present embodiment, the restricting portion 162 is arranged at the tip of a projecting portion 163 projecting from the annular portion 161 along the axial direction of the shaft body 110 in the gap between the outer shaft body 111 and the inner cylindrical body 122. A restricting projection 167 that protrudes toward the outer shaft body 111 is provided on the inner peripheral surface of the restricting portion 162 . The restricting protrusion 167 is a hemispherical protrusion that engages with being fitted in the restricting hole 113 provided in the outer shaft body 111 . It regulates the movement of the outer shaft body 111 with respect to the body 112 . The restricting protrusions 167 are provided at the tip portions of the three protruding portions 163 arranged between the insertion portions 164, respectively.

The projecting portion 163 is a portion for arranging the restricting portion 162 at a predetermined distance from the annular portion 161 , and projects from the annular portion 161 along the axial direction of the shaft 110 between the insertion portions 164 . The projecting portion 163 is integrally joined to the annular portion 161 , and the proximal end portion has a slightly larger diameter than the inner diameter of the inner cylindrical body 122 like the inserting portion 164 . The tip portion of the projecting portion 163 is thinner than the base end portion.

The push-down protrusion 166 is a portion radially protruding from the projecting portion 163 toward the inner cylindrical body 122 , and is provided in the intermediate portion of the projecting portion 163 at a thin portion. The shape of the pressing projection 166 is not particularly limited, and in the case of this embodiment, it has a hemispherical shape. Further, when the insertion portion 164 of the holding member 160 is not inserted into the inner circumference of the inner cylindrical body 122 , the tip of the push-down projection 166 protrudes outside the outer circumference of the insertion portion 164 . As a result, when the insertion portion 164 of the holding member 160 is inserted into the inner cylinder 122 , the push-down projection 166 bends the thin portion of the projecting portion 163 and presses the restricting portion 162 against the outer shaft 111 .

As shown in FIG. 9, the projecting portion 163 is in contact with the outer shaft body 111 with the restricting portion 162 when the shaft body 110 is contracted, and as shown in FIG. The edge of the outer shaft 111 has a length that is located between the restricting portion 162 and the annular portion 161 when the shaft 110 is extended by relatively moving the outer shaft 111 by an operator or the like. When the shaft body 110 is extended, the inner circumference of the annular portion 161, the inner circumference of the insertion portion 164, and the inner circumference of the projecting portion 163 are in non-contact with the outer circumference surface of the outer shaft body 111. The holding member 160 does not prevent the rotation of the outer shaft body 111 about its axis. In the case of this embodiment, the length of the projecting portion 163 is substantially the same as the length of the inserting portion 164 in the axial direction.

Note that the regulation hole 113 provided in the outer shaft body 111 is not particularly limited as long as it has a shape in which the regulation projection 167 is engaged. may be provided at a position corresponding to the restricting projection 167 . In the case of this embodiment, the restricting hole 113 is formed in a groove shape provided along the circumference of the outer peripheral surface of the distal end portion of the outer shaft body 111, so that even if the holding member 160 is displaced around the axis, the restricting hole 113 can be reliably restricted. The hole 113 and the restricting protrusion 167 can be engaged.

Next, handling before and after mounting the steering device 100 to the vehicle 200 will be described. Before being assembled to the vehicle 200, it is transported and handled as a steering unit including the outer cylinder 121, the deformation member 140, the inner cylinder 122, the bearing 130, the shaft 110, and the holding member 160. When the steering unit is transported and handled, the shaft 110 is in the contracted state shown in FIG. This is because when the shaft body 110 is contracted, the inner cylinder body 122 and the bearing 130 and the holding member 160 fixed to the inner cylinder body 122 fix the inner shaft body 112 and the outer shaft body 111 in the axial direction. This is because the shaft 110 does not unintentionally extend and the outer shaft 111 does not come off.

Next, the steering unit is fixed to the partition wall 210 while the shaft 110 is contracted. In the case of this embodiment, the steering unit is attached by fastening the flange 123 of the outer cylindrical body 121 to the partition wall 210 . The outer cylindrical body 121 is attached to the flange 123 at a predetermined angle based on design values. Therefore, when the flange 123 is attached to the partition wall 210 , the inner cylinder 122 and the shaft 110 are arranged in the same direction as the outer cylinder 121 with respect to the partition wall 210 via the outer cylinder 121 .

Next, the operator pulls out the outer shaft body 111 , which is in the regulated state by the regulating portion 162 of the holding member 160 , by a predetermined distance, thereby canceling the regulation. It should be noted that the timing of releasing the regulation is not limited to this. Thereby, the shaft body 110 can be freely expanded and contracted, and can be freely rotated with respect to the outer cylinder body 121 and the inner cylinder body 122 .

Next, the tip of the outer shaft body 111 and the column shaft 151 are connected, and the inner shaft body 112 and the lower shaft 152 are connected. Here, the column shaft is fixed to the vehicle 200, and the outer shaft body 111 is also fixed to the partition wall 210 of the vehicle 200. Therefore, the axis of the shaft body 110 including the outer shaft body 111 may be misaligned due to an installation error or the like. be. Even in this case, deformation of the deformable member 140 absorbs this shift, which prevents whirling of the shaft 110 that occurs due to mounting errors or the like when the shaft 110 rotates. It is possible to suppress the load and realize smooth steering.

After the steering device 100 is assembled to the vehicle 200, the restricting portion 162 of the holding member 160 does not function as shown in FIG. Intrusion of dust into the gap with the inner cylindrical body 122 is suppressed, and intrusion of large foreign matter is prevented. As a result, it is possible to suppress the occurrence of problems such as obstruction of the rotation of the shaft body 110 by foreign matter that has entered the inner cylindrical body 122 .

It should be noted that the present invention is not limited to the above embodiments. For example, another embodiment realized by arbitrarily combining the constituent elements described in this specification or omitting some of the constituent elements may be an embodiment of the present invention. The present invention also includes modifications obtained by making various modifications to the above-described embodiment within the scope of the gist of the present invention, that is, the meaning of the words described in the claims, which a person skilled in the art can think of. be

For example, when the steering unit was attached, the flange 123 was brought into contact with the surface of the partition wall 210 facing the compartment 201 and fixed. may be brought into contact with the surface of the front section 202 side. Also, the shape of the flange 123 is arbitrary.

Moreover, although the holding member 160 is press-fitted into the inner cylindrical body 122 and fixed, the holding member 160 may be fixed by any method. A narrow annular slit may be provided into which the end of the inner cylinder 122 may be inserted.

Moreover, although the deformable member 140 in which the rubber portion 141 is vulcanized and bonded between the inner and outer rigid body portions has been described as the deformable member 140, the deformable member 140 is not limited to this. For example, the deformable member 140 may be one in which the rubber portion 141 is directly vulcanized and bonded between the inner cylindrical body 122 and the outer cylindrical body 121 without providing the inner and outer rigid bodies. Also, the rubber portion 141 may be arranged between the outer cylindrical body 121 and the inner rigid body portion 143 or between the outer rigid body portion 142 and the inner cylindrical body 122 .

INDUSTRIAL APPLICABILITY The present invention is applicable to the steering portion of a vehicle.

Reference Signs List 100: steering device 110: shaft 111: outer shaft 112: inner shaft 113: regulation hole 120: cylinder 121: outer cylinder 122: inner cylinder 123: flange 124: Through hole 125: Engagement hole 130: Bearing 140: Deformable member 141: Rubber part 142: Outer rigid part 143: Inner rigid part 151: Column shaft 152: Lower shaft 153: Rack 160 : Holding member 161: Annular part 162: Regulating part 163: Protruding part 164: Inserting part 165: Engaging projection 166: Depressing projection 167: Regulating projection 200: Vehicle 201: Cabin 202 : front compartment, 203: steering member, 204: tire, 210: compartment wall

Claims (4)

A steering device for steering a vehicle by operating a steering member arranged in a vehicle interior,
a shaft disposed from the vehicle compartment to a front section for transmitting torque generated by operation of the steering member;
an outer cylindrical body fixedly attached to a partition wall that separates the vehicle compartment and the front compartment;
an inner cylindrical body disposed inside the outer cylindrical body and through which the shaft is inserted;
a bearing that rotatably holds the shaft with respect to the inner cylinder;
a deformation member that fixedly holds the inner cylindrical body with respect to the outer cylindrical body and deforms due to a force applied to the inner cylindrical body from the shaft via the bearing ;
The inner cylindrical body is arranged in a state of penetrating the partition wall,
The bearing is arranged on one side of the partition wall, and the deformation member is arranged on the other side.
steering device. The deformation member is
The steering device according to claim 1, wherein the inner cylindrical body is elastically deformed by a force applied to the inner cylindrical body. The deformation member is
3. The steering device according to claim 1, further comprising a rigid portion that is fixed to at least one of the inner peripheral surface of the outer cylindrical body and the outer peripheral surface of the inner cylindrical body and that is not deformed by a force applied to the inner cylindrical body. The steering apparatus according to any one of claims 1 to 3 , wherein the shaft includes a cylindrical outer shaft and an inner shaft that is slidably inserted into the outer shaft.

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