Abstract: To provide a dust cover capable of maintaining a state in which a first flexible part and a second flexible part of a bellows are fitted onto a mounting member. A dust cover includes a bushing, a bellows, and a mounting member. The mounting member has a main body and a flange part.

Abstract: A steering shaft includes an inner shaft including first tooth parts, an outer shaft including second tooth parts, and a resin layer. The resin layer includes a plurality of thick film parts and at least four thin film parts. Each thick film part is disposed with a gap from one of the second tooth parts, and each thin film part contacts both one of the first tooth parts and one of the second tooth parts. At a section orthogonal to a central axis of the inner shaft, the thickness of each thin film part is smaller than the thickness of each thick film part.

Abstract: A seal ring (26) configured to be employed with a cross shaft (16) including a center section (17) and four shaft sections (18a, 18b, 18c, 18d) extending in four directions from the center section and formed with step faces (17a) where the center section widens out from base ends of the shaft sections outward in radial directions of the shaft sections, and with bearings (21) for mounting to leading end portions of the shaft sections. The seal ring is fitted over the shaft section and interposed between the bearing and the step face. The seal ring includes a seal lip (34) configured to contact the step face around the entire circumference, and an indentation (36) the seal lip enters by deforming when mounted to the cross shaft.

Abstract: Provided is an outer tube including a solid-shaped male-shaft portion and a bottomed cylindrical female-tube portion integrally formed with the male shaft portion. A hole cover is externally fitted to the female-tube portion and closes a gap between a dash panel separating the vehicle cabin interior and the vehicle cabin exterior of a vehicle body and the outer tube. In an assembled state in the vehicle body, the solid male-shaft portion is arranged in the vehicle cabin exterior, and an opening portion of a slide hole provided in the female-tube portion is arranged in the vehicle cabin interior.

Abstract: To provide a dust cover capable of maintaining a state in which a first flexible part and a second flexible part of a bellows are fitted onto a mounting member. A dust cover includes a bushing, a bellows, and a mounting member. The mounting member has a main body and a flange part.

Abstract: A support bracket is arranged inside a slit of an outer column and joined to the inner column so as to be able to detach due to an impact load applied to the inner column at the time of a secondary collision. A base portion of an impact absorbing member is attached to the inner column so as to displace together with the inner column when the inner column displaces toward the front, and a folded portion of the impact absorbing member is made to face a jerking portion of the support bracket in the front-rear direction.

Abstract: A torque transmission shaft includes a shaft and a clamp. The shaft includes: a male serration in one axial end portion; a slit in the other axial end portion, the slit axially extending and having a closed end on one side and an open end on the other side; a fitting cylinder portion in the other axial end portion; and a female serration provided in of the other axial end portion. The clamp includes: a discontinuous portion arranged at one place in the circumferential direction; a pair of flange portions arranged on both sides of the discontinuous portion; a connecting portion connecting the flange portions; and an insertion hole for fitting cylinder portion. The clamp is fitted onto the fitting cylinder portion to reduce the diameter of the fitting cylinder portion by narrowing the width dimension of the discontinuous portion.

Abstract: The torque transmission shaft has a shaft having a hollow tubular shape and a clamp. The shaft has a connecting portion integral with the shaft at one axial end portion, a slit extending in the axial direction in a portion on the other axial end side and opens on the other side in the axial direction, and a female serration on the inner circumferential surface of the other axial end portion. The clamp is separate from the shaft and has a non-continuous portion at one location in the circumferential direction, a pair of flange portions on both sides of the non-continuous portion, and a connecting portion connecting the pair of flange portions in the circumferential direction. The clamp is externally fitted and fixed to the other axial end portion of the shaft and reduces the diameter of the other axial end side portion of the shaft.

Abstract: A structure is achieved that makes it easy to increase the absorbed amount of an impact load applied to the steering wheel in the event of a secondary collision. A support bracket 18 is arranged inside a slit 25 of an outer column 21 and joined to the inner column 20 so as to be able to detach due to an impact load applied to the inner column 20 at the time of a secondary collision. A base portion 79 of an impact absorbing member 19 is attached to the inner column 20 so as to displace together with the inner column 20 when the inner column 20 displaces toward the front, and a folded portion 78 of the impact absorbing member 19 is made to face a jerking portion 61 of the support bracket 18 in the front-rear direction.

Abstract: The torque transmission shaft includes: a shaft that is integrally formed and that has a yoke provided at one end portion in the axial direction and a female serration provided on the inner peripheral surface at the other end in the axial direction; and a clamp that is separate from the shaft and that is capable of reducing the diameter of the other end portion of the shaft in the axial direction; wherein the shaft and the clamp are fixed together.

Abstract: The shaft coupling structure includes: a male joint, and a female shaft that is coupled to male joint. The outer peripheral surface of the male joint has an outer peripheral side concave-convex portion having a concave-convex shape in the circumferential direction and an annular concave groove, and the inner peripheral surface of the female shaft has an inner peripheral side concave-convex portion having a concave-convex shape in the circumferential direction. The outer peripheral side concave-convex portion and the inner peripheral side concave-convex portion engage with a concave-convex engagement. The outer peripheral surface of the male joint and an end portion on one side of the female shaft in the axial direction are welded and fixed together, and an embossed portion provided on the inner peripheral surface of the female shaft is arranged on the inner side of the annular concave groove.

Abstract: A seal ring (26) configured to be employed with a cross shaft (16) including a center section (17) and four shaft sections (18a, 18b, 18c, 18d) extending in four directions from the center section and formed with step faces (17a) where the center section widens out from base ends of the shaft sections outward in radial directions of the shaft sections, and with bearings (21) for mounting to leading end portions of the shaft sections. The seal ring is fitted over the shaft section and interposed between the bearing and the step face. The seal ring includes a seal lip (34) configured to contact the step face around the entire circumference, and an indentation (36) the seal lip enters by deforming when mounted to the cross shaft.

Abstract: A structure capable of preventing improper wheel alignment even when, for example, an accident such as a collision accident, steered wheels riding on a curb, or the like occurs is realized.

Abstract: A shaft coupling structure of the present invention includes a male joint and a female shaft that are coupled together. The outer peripheral surface of the male joint has an outer peripheral side concave-convex portion having a concave-convex shape in the circumferential direction and an annular concave groove, and the inner peripheral surface of the female shaft has an inner peripheral side concave-convex portion having a concave-convex shape in the circumferential direction. The outer peripheral side concave-convex portion and the inner peripheral side concave-convex portion engage with a concave-convex engagement. The outer peripheral surface of the male joint and an end portion on one side of the female shaft in the axial direction are welded and fixed together, and an embossed portion provided on the inner peripheral surface of the female shaft is arranged on the inner side of the annular concave groove.

Abstract: The torque transmission shaft includes: a shaft that is integrally formed and that has a yoke provided at one end portion in the axial direction and a female serration provided on the inner peripheral surface at the other end in the axial direction; and a clamp that is separate from the shaft and that is capable of reducing the diameter of the other end portion of the shaft in the axial direction; wherein the shaft and the clamp are fixed together.

Abstract: A structure of the hollow torque transmission member having a bellows portion in the middle section in the axial direction is manufactured at low cost by bulge molding such as hydroforming molding. A thin thickness portion having a smaller thickness in the radial direction than other portion is provided in the middle section in the axial direction of a hollow material. A hollow torque transmission member comprising a bellows portion is obtained by expanding the thin thickness portion outward in the radial direction by performing hydroforming molding to the hollow material.

Abstract: A structure capable of preventing improper wheel alignment even when, for example, an accident such as a collision accident, steered wheels riding on a curb, or the like occurs is realized.

Abstract: An electric power steering apparatus has a first rolling bearing and a second rolling bearing rotatably supporting an output shaft. The first rolling bearing is provided between an inner peripheral surface of a through-hole of a gear housing and an outer peripheral surface of the output shaft. The second rolling bearing is provided between an inner peripheral surface of an intermediate plate and the outer peripheral surface of the output shaft. The intermediate plate has an outer peripheral portion supported and fixed in an opening portion of the gear housing.

Abstract: At least one of the vehicle body side through holes and the column side through hole is an adjusting long hole which is long in a direction in which a position of the steering wheel can be adjusted. A base end portion of the adjusting lever includes a lever side through hole penetrating through the base end portion in the width direction. The adjusting rod is press-fitted into the lever side through hole.

Abstract: A steering wheel position adjustment device includes a displacement bracket fixed to a steering column, a pair of support plate parts for interposing the displacement bracket, an adjustment rod inserted in a through hole in the displacement bracket and in through holes in the support plate parts, a pair of pressing parts provided at both ends of the adjustment rod, an adjustment lever provided to one end of the adjustment rod and configured to expand and contract an interval between the pressing parts, and a rotating friction plate. The rotating friction plate is interposed between the displacement bracket and the support plate parts and/or between the support plate parts and the pressing parts. The rotating friction plate has a base end portion rotatably supported by a rotation support shaft, and a tip half portion formed with a long guide hole with which the adjustment rod is engaged.