JP2019194045A - Steering device - Google Patents

Abstract

To hold a constantly slide type shaft body without generating waste members.SOLUTION: A steering device 100 includes: an extendable shaft body 110 which includes a cylindrical outer shaft body 111 and an inner shaft body 112 inserted into the outer shaft body 111 and transmits torque; an attachment member including a cylindrical body 120 fixedly attached to a partition wall 210 which partitions a vehicle cabin from a front section and a bearing 130 which holds the inner shaft body 112 in an inserted state in a manner that the inner shaft body 112 can rotate relative to the cylindrical body 120; an annular part 161 which is attached to an end part of the cylindrical body 120, covers a gap between the outer shaft body 111 which is disposed inserted into the cylindrical body 120 and the cylindrical body 120, and has an inner diameter having a diameter larger than the outer shaft body 111; and a holding member 160 including a restriction part 162 which contacts with an outer peripheral surface part of the outer shaft body 111 to restrict extension of the shaft body 110.SELECTED DRAWING: Figure 5

Description

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

  Conventionally, a steering device includes a plurality of shaft bodies connected by a universal joint. The plurality of shaft bodies transmit the torque of the steering member between the steering wheel arranged in the vehicle interior and the rack arranged in the front compartment, and the relative position of the rack with respect to the steering wheel is changed by a universal joint. Absorbs. In general, a partition wall is provided between the passenger compartment and the front compartment that accommodates the engine and the like, and the shaft body of the steering device is disposed in a state of being inserted into a hole provided in the partition wall. Yes.

  In Patent Document 1, in order to prevent noise and foreign matter from entering the vehicle compartment from the hole through which the shaft body of the steering device is inserted, the rubber body that allows the shaft body to rotate and swing is closed. The cover member is described.

  Further, the steering device may include a constantly sliding type shaft body. A steering device having a shaft body that is always slidable is required to maintain a contracted state until immediately before assembly in order to improve assemblability in a vehicle and stability during transportation. Conventionally, a wire band is wound around and held around a sliding type shaft body, and the wire band is removed and discarded immediately before assembly.

JP 2014-129004 A

  However, the wire band holding the sliding type shaft body requires complicated manual work and tends to increase the cycle time. Moreover, since the wire band cannot be reused, resources are wasted.

  The present invention has been made in view of the above problems, and there is a need for a part that holds the shaft body in a contracted state until it is assembled to a vehicle body and that is equipped with a constantly sliding type shaft body and is discarded after the assembly. An object is to provide a steering device that does not.

  In order to achieve the above object, a steering apparatus according to one aspect of the present invention is a steering apparatus that steers a vehicle by operating a steering member disposed in a vehicle interior, and includes a cylindrical outer shaft body, An inner shaft body that is slidably inserted into the outer shaft body, and is fixed to a partition wall that separates the vehicle compartment from the front section, and a telescopic shaft body that transmits torque generated by operation of the steering member Attached to the cylindrical body, a mounting member that rotatably holds the inner shaft body that is inserted into the cylindrical body, and an attachment member that is attached to an end of the cylindrical body and is inserted into the cylindrical body Covering the gap between the outer shaft body and the cylindrical body, and the shaft body extending in contact with the annular portion having an inner diameter larger than the outer shaft body and the outer peripheral surface portion of the outer shaft body. A holding member provided with a restricting portion to be regulated.

  According to this, before the steering device is assembled to the vehicle, the holding member holds the outer shaft body with respect to the inner shaft body, so that the shaft body can be maintained in a contracted state. In addition, after the steering device is assembled to the vehicle, the annular portion covers the gap between the shaft body and the cylindrical body, so that entry of foreign matter can be suppressed. Therefore, even after the steering device is attached to the vehicle, the holding member can be used without being discarded.

  The holding member includes a protrusion that protrudes along the axial direction of the shaft body from the annular portion in a gap between the outer shaft body and the cylindrical body, and the restriction portion is a tip portion of the protrusion portion. May be arranged.

  According to this, the annular portion and the regulating portion can be separated in the axial direction of the shaft body, and the holding of the shaft body before mounting the steering device and the rotation of the shaft body after mounting can be realized with a simple structure. Is possible.

  In addition, the protruding portion contacts the outer shaft body with the restricting portion when the shaft body is contracted, and the shaft body is extended by the relative movement of the outer shaft body with respect to the inner shaft body. In this state, an end edge of the outer shaft body may have a length located between the restricting portion and the annular portion.

  According to this, even after the steering device is attached, the outer shaft body is inserted into the annular portion, and the entry of foreign matter can be effectively suppressed.

  The restricting portion may include a restricting protrusion that engages with a restricting hole provided in the outer shaft body on the outer shaft body side of the restricting portion.

  According to this, before assembling the steering device, the shaft body can be reliably maintained in a contracted state.

  The holding member includes an insertion portion arranged in an inserted state in the cylindrical body, and an engagement protrusion that engages with an engagement hole provided in the cylindrical body on the cylindrical body side of the insertion portion. Also good.

  Thereby, after the steering device is assembled, the restriction relationship between the outer shaft body and the restriction portion of the holding member can be easily released. In addition, the holding member can be stably fixed to the cylindrical body, and the entry of foreign matter can be always suppressed.

  According to the present invention, the sliding type shaft body can be maintained in a contracted state at all times before assembly of the steering device, and after assembly, it is used for preventing entry of foreign matters without discarding the parts. You can continue.

It is a figure which shows simply the front part of the vehicle with which the steering device was attached. It is a perspective view which shows the steering device of a partition wall vicinity from a front partition. It is a perspective view which shows the steering device of the partition wall vicinity from a compartment. It is a side view which shows a steering device from the side. It is sectional drawing which shows the cross section of a steering device from a side. It is a perspective view which shows a deformation member. It is a perspective view which shows a holding member. It is sectional drawing which shows the holding member vicinity of the state which the shaft body extended. It is sectional drawing which shows the holding member vicinity of the state which the shaft body contracted.

  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 each of the embodiments described below shows a comprehensive or specific example. The numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of the constituent elements, steps, order of steps, and the like shown in the following embodiments are merely 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 the independent claims indicating the highest concept are described as optional constituent elements.

  In addition, the drawings are schematic diagrams in which emphasis, omission, and ratio adjustment are appropriately performed to show the present invention, and may differ from actual shapes, positional relationships, and ratios.

  FIG. 1 is a diagram schematically showing a front portion of a vehicle to which a steering device is attached. As shown in the figure, a steering device 100 is a device for steering a vehicle 200 by operating a steering member 203 such as a steering wheel disposed in a passenger compartment 201, and is a shaft body called an intermediate shaft or the like. 110, a cylindrical body 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 includes a column shaft 151 that connects the shaft body 110 and the steering member 203 via a universal joint, and a lower shaft 152 that connects the shaft body 110 and the rack 153 via a universal joint. .

  The vehicle 200 is a moving body that travels on land, such as an automobile, with tires 204, and includes a passenger compartment 201 in which a driver gets in, and a front section 202 called a so-called engine compartment. The vehicle compartment 201 and the front compartment 202 are separated from each other by a partition wall 210 called a so-called dash panel or the like, thereby preventing noise and dust from entering from the front compartment 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 of the steering device from the side.

  As shown in these drawings, the shaft body 110 is a member that is disposed from the passenger compartment 201 to the front section 202 and that transmits torque generated by the operation of the steering member 203. In the case of the present embodiment, as shown in FIG. 5, the shaft body 110 includes a cylindrical outer shaft body 111 and an inner shaft body 112 that is slidably inserted into the outer shaft body 111, and provides torque. It is an intermediate shaft that is always slidable and capable of transmission and expansion and contraction. 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 cylindrical body 120 is a member that is fixedly attached to the partition wall 210 that separates the passenger compartment 201 and the front partition 202, and that holds the shaft body 110, and includes an outer cylindrical body 121 and an inner cylindrical body 122. .

  The outer cylinder 121 is a cylindrical member attached to the partition wall 210 in a fixed state. In the case of the present embodiment, the outer cylinder 121 is inserted into the shaft 110 of the shaft 110 and the tube shaft in order to pass through the shaft 110 that is arranged obliquely so as to rise from the front section 202 into the passenger compartment 201. Are fixed to the partition wall 210 so that they substantially coincide. Although the method for fixing the outer cylinder 121 to the partition wall 210 is not particularly limited, in the case of the present embodiment, a flange 123 protruding outward is formed at the base end portion of the outer cylinder 121. The outer cylinder 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 so that the shaft body 110 can be inserted.

  The shape of the outer cylinder 121 is not particularly limited as long as the shaft body 110 can be inserted, but in the case of the present embodiment, a cylindrical shape is adopted. Although the material which comprises the outer cylinder body 121 is not specifically limited, The rigidity which can hold | maintain the shaft body 110 with the flange 123 is required. For example, as the material of the outer cylinder 121, steel, stainless steel, aluminum alloy, or the like can be listed.

  The inner cylinder 122 is a cylindrical member that is disposed inside the outer cylinder 121 and in which the shaft body 110 is disposed in an inserted state. The inner cylindrical body 122 holds the inner shaft body 112 inserted inward in a rotatable manner via a bearing 130.

  The shape of the inner cylindrical body 122 is not particularly limited as long as the shaft body 110 can be inserted, but in the present embodiment, a cylindrical shape having a smaller diameter than the outer cylindrical body 121 is adopted. ing. In the case of the present embodiment, the inner cylindrical body 122 is longer than the outer cylindrical body 121, penetrates the partition wall, one end projects to the vehicle compartment 201 side than the outer cylindrical body 121, and the other end is It arrange | positions in the state which protruded in the front division 202 side beyond the partition wall 210 rather than the outer cylinder 121. FIG.

  Although the material which comprises the inner cylinder body 122 is not specifically limited, The rigidity which can hold | maintain the shaft body 110 is required. For example, as the material of the outer cylinder 121, steel, stainless steel, aluminum alloy, or the like can be listed.

  The bearing 130 holds the inner shaft body 112 rotatably with respect to the inner cylinder body 122. Further, the bearings according to the displacement of the shaft of the inner shaft body 112 with respect to the tube shaft of the outer cylindrical body 121 when the steering device 100 is attached to the vehicle 200, the shaft displacement due to the shaking of the inner shaft body 112 while the vehicle 200 is traveling, etc. 130 follows the tube axis of the inner cylindrical body 122. In the case of the present embodiment, two bearings 130 are arranged at a predetermined interval in order to cause the tube axis of the inner cylinder 122 to follow the swinging displacement of the shaft of the inner shaft 112 with respect to the outer cylinder 121 with a strong correlation. The inner shaft body 112 is held with respect to the inner cylindrical body 122 by the two bearings 130.

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

  The deformable member 140 is a force generated by a displacement of an assembly position when the inner cylinder 122 is fixedly held with respect to the outer cylinder 121 and the steering device 100 is attached to the vehicle 200. It is a member that exhibits a centering function by being deformed between the outer cylinder 121 and a force applied to the inner cylinder 122 via the bearing 130. The shape, structure, material, and the like of the deformable member 140 are not particularly limited. For example, the deformable member 140 may be plastically deformed due to the brittleness of the material, or may be reversibly or irreversibly deformed due to structural brittleness such as a porous or honeycomb structure.

  FIG. 6 is a perspective view showing a deformable member. As shown in the figure, in the case of the present embodiment, the deformable member 140 includes an annular rubber portion 141 made of rubber or elastomer that is elastically deformed by the force generated between the outer cylinder 121 and the inner cylinder 122. I have. As a result, not only can the shaft shift generated when the steering device 100 is assembled be absorbed by the deformation of the rubber part 141, but also the shaft shift due to vibration during traveling of the vehicle 200 can be flexibly dealt with. The deformable member 140 is fixed to the inner peripheral surface of the outer cylindrical body 121, and the outer rigid body portion 142 that is a rigid body portion that is not deformed by a force applied to the inner cylindrical body 122 via the shaft body 110, and the inner cylindrical body 122. And an inner rigid body portion 143 that is a rigid body portion that 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 disposed on the outer peripheral surface of the rubber portion 141. The inner rigid body portion 143 is an annular member disposed 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. Examples of the material of the outer rigid body part 142 and the inner rigid body part 143 include steel, stainless steel, and aluminum alloy. The method of joining the outer rigid body part 142 and the inner rigid body part 143 and the rubber part 141 is not particularly limited, but vulcanization bonding is employed in the present embodiment.

  Since the deformable member 140 includes the rigid body portion including the outer rigid body portion 142 and the inner rigid body portion 143, the deformable member 140 can be strongly fixed between the outer cylinder body 121 and the inner cylinder body 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 142 is press-fitted into the outer cylindrical body 121 and the inner cylindrical body 122 is press-fitted into the inner rigid body 143, so that the deformable member 140 is connected to the outer cylindrical body 121 and the inner cylindrical body 122. It is fixed between.

  The disposition position of the deformable member 140 is not particularly limited, and may be disposed at any end or intermediate portion of the outer cylinder 121. Further, the plurality of deformable members 140 may be distributed and arranged in the outer cylinder 121. In the case of the present embodiment, the deformable member 140 is disposed only at one end portion of the outer cylindrical body 121 and is disposed at a position protruding toward the vehicle interior 201 side opposite to the bearing 130. As described above, by widening the gap between the bearing 130 and the deformable member 140, it is possible to widen a range in which the shaft body 110 is allowed to be displaced with respect to the outer cylinder 121.

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

  FIG. 7 is a perspective view showing the 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. In addition, the steering device 100 before being assembled to the vehicle 200 functions as a member that holds the outer shaft body 111 with respect to the inner shaft body 112 in order to restrict unintentional expansion of the telescopic shaft body 110. Specifically, the holding member 160 is a member attached to the end of the cylindrical body 120, and includes an annular portion 161 and a restricting portion 162 as shown in FIG. In the case of the present embodiment, the holding member 160 further includes a protruding portion 163, an inserting portion 164, an engaging protrusion 165, and a pressing protrusion 166.

  The annular portion 161 is an annular portion that covers a gap between the outer shaft body 111 inserted into the inner cylinder body 122 that is one of the cylinder bodies 120 and the inner cylinder body 122. The shape of the annular portion 161 is not particularly limited, and a part thereof may be cut out. However, it is necessary to 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, since the inner cylindrical body 122 and the outer shaft body 111 corresponding to the position where the annular portion 161 is disposed are both cylindrical, the annular portion 161 has an annular shape with a rectangular cross section. Is adopted. The outer diameter of the annular portion 161 is larger than the inner diameter of the inner cylindrical body 122, and the inner diameter of the annular portion 161 is larger 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 body 122 by being inserted into the inner cylinder body 122. The shape of the insertion portion 164 is not particularly limited, but a cylindrical shape having an outer diameter slightly larger than the inner peripheral diameter of the inner cylindrical body 122 or a part of the cylindrical shape is adopted. . In the case of the present embodiment, the insertion portion 164 is a cylinder whose outer diameter is slightly larger than the inner diameter of the inner cylindrical body 122, and a cylinder having the same inner diameter as the inner diameter of the annular portion 161 is arranged in the circumferential direction. Three pieces selected every other piece out of six pieces divided into six equal parts and provided with slits between adjacent pieces are applicable. Further, 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.

  An engagement protrusion 165 that protrudes toward the inner cylindrical body 122 is provided on the outer peripheral surface of at least one of the three pieces of the insertion portion 164. After the insertion portion 164 is inserted into the inner cylinder body 122, the engagement protrusion 165 is fitted into the engagement hole 125 (see FIG. 5) provided in the inner cylinder body 122, so that the holding member 160 is inserted into the inner cylinder body. The unintentional dropping from 122 is prevented.

  The restricting portion 162 is a portion that restricts the shaft body 110 from unintentionally extending by coming into contact with the outer peripheral surface portion of the outer shaft body 111 arranged with the end portion inserted into the inner cylindrical body 122. As shown in FIG. 9, the restricting portion 162 restricts the movement of the outer shaft body 111 in the axial direction with respect to the inner cylindrical body 122 when the shaft body 110 is contracted. The restriction method of the outer shaft body 111 of the restriction portion 162 is not particularly limited. For example, the movement of the outer shaft body 111 in the axial direction due to the frictional force caused by the restriction portion 162 coming into close contact with the outer peripheral surface of the outer shaft body 111. May be regulated.

  In the case of the present embodiment, the restricting portion 162 is disposed at the distal end portion of the protruding portion 163 protruding along the axial direction of the shaft body 110 from the annular portion 161 in the gap between the outer shaft body 111 and the inner cylinder body 122. A restriction protrusion 167 that protrudes toward the outer shaft body 111 is provided on the inner peripheral surface of the restriction portion 162. The restricting protrusion 167 is a hemispherical protrusion that engages with the restricting hole 113 provided in the outer shaft body 111, and the restricting protrusion 167 is fitted into the restricting hole 113 so that the inner shaft in the axial direction The movement of the outer shaft body 111 with respect to the body 112 is restricted. The restricting protrusions 167 are respectively provided at the tip portions of the three pieces of protruding portions 163 disposed between the insertion portions 164.

  The protruding portion 163 is a portion for disposing the regulating portion 162 at a predetermined distance from the annular portion 161, and protrudes from the annular portion 161 along the axial direction of the shaft body 110 between the insertion portions 164. The projecting portion 163 is integrally joined to the annular portion 161, and the base end portion is slightly larger in diameter than the inner diameter of the inner cylindrical body 122, similar to the insertion portion 164. The distal end portion of the protruding portion 163 is thinner than the proximal end portion.

  The pressing protrusion 166 is a portion that protrudes in the radial direction from the protruding portion 163 toward the inner cylindrical body 122, and is provided in a thin portion that is an intermediate portion of the protruding portion 163. The shape of the pressing protrusion 166 is not particularly limited, and is a hemispherical shape in the present embodiment. Further, in a state where the insertion portion 164 of the holding member 160 is not inserted into the inner periphery of the inner cylindrical body 122, the tip end of the pressing protrusion 166 protrudes outward from the outer periphery of the insertion portion 164. Thereby, in a state where the insertion portion 164 of the holding member 160 is inserted into the inner cylindrical body 122, the pressing protrusion 166 curves the thin portion of the protruding portion 163 and presses the restricting portion 162 against the outer shaft body 111.

  As shown in FIG. 9, the projecting portion 163 contacts the outer shaft body 111 with the restricting portion 162 in a state where the shaft body 110 is contracted, and the outer shaft body with respect to the inner shaft body 112 as shown in FIG. 8. When an operator or the like relatively moves 111 to extend the shaft body 110, the end of the outer shaft body 111 is long enough to be positioned between the restricting portion 162 and the annular portion 161. Further, in the state where the shaft body 110 is extended, the inner periphery of the annular portion 161, the inner periphery of the insertion portion 164, and the inner periphery of the protruding portion 163 are not in contact with the outer peripheral surface of the outer shaft body 111. The holding member 160 does not hinder the rotation of the outer shaft body 111 around the axis. In the case of the present embodiment, the length of the protruding portion 163 is substantially the same as the length of the insertion portion 164 in the axial direction.

  The restriction hole 113 provided in the outer shaft body 111 is not particularly limited as long as the restriction protrusion 167 is engaged with the restriction hole 167. For example, a hemispherical restriction hole 113 is formed on the outer peripheral surface of the distal end portion of the outer shaft body 111. May be provided at a position corresponding to the restricting protrusion 167. In the case of the present embodiment, the restriction hole 113 has a groove shape provided over the entire circumference of the outer peripheral surface of the distal end portion of the outer shaft body 111, and even if the holding member 160 is displaced around the axis, the restriction hole 113 is reliably restricted. The hole 113 and the regulation protrusion 167 can be engaged.

  Next, handling before and after assembling the steering device 100 to the vehicle 200 will be described. Before being assembled in the vehicle 200, the outer cylinder 121, the deformable member 140, the inner cylinder 122, the bearing 130, the shaft 110, and the holding member 160 are conveyed and handled as a steering unit. When the steering unit is transported and handled, the shaft body 110 is in a contracted state shown in FIG. In the state where the shaft body 110 is contracted, the inner shaft body 112 and the outer shaft body 111 are respectively fixed in the axial direction by the inner cylindrical body 122 and the bearing 130 and the holding member 160 fixed thereto. This is because the shaft body 110 unintentionally extends and the outer shaft body 111 does not come off.

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

  Next, the operator releases the restriction by pulling out the outer shaft body 111 in a restricted state by the restriction portion 162 of the holding member 160 by a predetermined distance. In addition, the timing which cancels | regulates is not limited to this. Thereby, the shaft body 110 can freely expand and contract, and can rotate 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, since 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, the shaft of the shaft body 110 including the outer shaft body 111 may be displaced due to an attachment error or the like. is there. Even in this case, since the displacement is absorbed by the deformation of the deformation member 140, the shaft body 110 is prevented from swinging due to an attachment error or the like when the shaft body 110 rotates, and is generated in the shaft body 110 or the like. The load can be suppressed and smooth steering can be realized.

  Further, after the steering device 100 is assembled to the vehicle 200, as shown in FIG. 8, the restricting portion 162 of the holding member 160 does not perform its function, but the annular portion 161 is connected to the outer shaft body 111. It prevents dust from entering the gap with the inner cylinder 122 and prevents large foreign matter from entering. As a result, it is possible to suppress the occurrence of problems such as the foreign matter that has entered the inner cylindrical body 122 hindering the rotation of the shaft body 110.

  The present invention is not limited to the above embodiment. For example, another embodiment realized by arbitrarily combining the components described in this specification and excluding some of the components may be used as an embodiment of the present invention. In addition, the present invention includes modifications obtained by making various modifications conceivable by those skilled in the art without departing from the gist of the present invention, that is, the meaning of the words described in the claims. It is.

  For example, when the steering unit is mounted, the flange 123 is fixed to the surface of the partition wall 210 on the side of the compartment 201, but the mounting mode of the steering unit is not particularly limited, and the flange 123 is fixed to the partition wall 210. You may make it contact | abut to the surface of the front division 202 side. The shape of the flange 123 is also arbitrary.

  Further, the holding member 160 is press-fitted and fixed inward of the inner cylindrical body 122, but the fixing method of the holding member 160 is arbitrary. For example, the holding member 160 is larger than the thickness of the inner cylindrical body 122. A narrow annular slit may be provided, and the end of the inner cylindrical body 122 may be inserted into the slit.

  Further, 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 formed by directly vulcanizing and bonding the rubber part 141 between the inner cylindrical body 122 and the outer cylindrical body 121 without providing inner and outer rigid bodies. Further, the rubber portion 141 may be disposed 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.

  The present invention can be used for a steering portion of a vehicle.

  DESCRIPTION OF SYMBOLS 100: Steering device, 110: Shaft body, 111: Outer shaft body, 112: Inner shaft body, 113: Restriction hole, 120: Cylindrical body, 121: Outer cylindrical body, 122: Inner cylindrical body, 123: Flange, 124: Through hole, 125: engagement hole, 130: bearing, 140: deformation 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 portion, 162: restricting portion, 163: protruding portion, 164: inserting portion, 165: engaging protrusion, 166: pressing protrusion, 167: restricting protrusion, 200: vehicle, 201: vehicle compartment, 202 : Front section 203: Steering member 204: Tire 210: Section wall

Claims (5)

A steering device for steering a vehicle by operating a steering member disposed in a vehicle interior,
A telescopic shaft that includes a cylindrical outer shaft and an inner shaft that is slidably inserted into the outer shaft, and that transmits torque generated by operation of the steering member;
A mounting member comprising: a cylindrical body fixedly attached to a partition wall separating the vehicle compartment and the front partition; and a bearing that rotatably holds the inner shaft body in an inserted state with respect to the cylindrical body;
An annular portion attached to an end of the cylindrical body and covering a gap between the outer shaft body and the cylindrical body disposed in an inserted state in the cylindrical body, and having an inner diameter larger than the outer shaft body; A steering device comprising: a holding member provided with a restricting portion that contacts an outer peripheral surface portion of the shaft body and restricts the shaft body from extending. The holding member is
A projecting portion projecting from the annular portion along the axial direction of the shaft body in a gap between the outer shaft body and the cylindrical body;
The steering device according to claim 1, wherein the restricting portion is disposed at a distal end portion of the protruding portion. The protruding portion is in a state in which the shaft body is extended by the relative movement of the outer shaft body with respect to the inner shaft body when the restriction portion and the outer shaft body are in contact with each other when the shaft body is contracted. The steering device according to claim 2, wherein an end edge of the outer shaft body has a length located between the restriction portion and the annular portion. The regulating part is
4. The steering device according to claim 2, wherein a restriction protrusion that engages with a restriction hole provided in the outer shaft body is provided on the outer shaft body side of the restriction portion. The holding member is
Comprising an insertion portion arranged in an inserted state in the cylindrical body,
The steering device according to any one of claims 1 to 4, further comprising an engaging protrusion that engages with an engaging hole provided in the cylindrical body on the cylindrical body side of the insertion portion.

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