Nsk Corporation

Takahiro Maniwa

Suguru Sugishita

Makoto Nagasawa

Construction is achieved that makes it possible to easily determine whether or not a combination of a drive-side cam and driven-side cam is suitable. Driven-side concave groovesthat are depressed inward in the radial direction and extend along the axial direction are formed in the outer-circumferential surface of the driven-side camat two locations on opposite sides in the radial direction. First drive-side concave groovesthat are depressed inward in the radial direction and extend along the axial direction are formed in portions of the outer-circumferential surface of the drive-side camsuch that the phase thereof in the circumferential direction in the locked state coincides with that of the driven-side concave grooves, and second drive-side concave groovesthat are depressed inward in the radial direction and extend along the axial direction are formed in portions of the outer-circumferential surface of the drive-side camsuch that the phase thereof in the circumferential direction in the unlocked state coincides with that of the driven-side concave grooves

Cam device, position-adjusting device for steering wheel, and method for assembling position-adjusting device for steering wheel

Construction of an outer column for a telescopic steering apparatus is achieved in which sufficient strength is maintained even when a steering lock apparatus is assembled, and smooth operation is maintained when making it possible to adjust the forward/backward position of a steering wheel, and when maintaining the adjusted position. Of the end sectionsof the sub slit sectionsof an approximately H-shaped slitfor expanding or contracting the inner diameter of a fitting support portionof an outer column, the rigidity of the nearest end sectionportion that exists in the location closest to a lock through holeand of the furthest end sectionportion that exists in a location diagonally from the nearest end section, is greater than the rigidity of the end sectionsin the remaining two locations. Moreover, convex sectionsare provided at two locations in the up/down direction on the outside surfaces of each of a pair of held plate sections

Telescopic steering apparatus and outer column

Construction of an outer column for a telescopic steering apparatus is achieved that maintains sufficient strength, and maintains smooth operation of the work of making it possible to adjust the forward-backward position of a steering wheel and maintaining the steering wheel at the adjusted position even when a steering-lock apparatus is assembled. An approximately H-shaped slitfor expanding or contracting the inner diameter of a fitting-holding portionof an outer columncomprises a main-slit sectionand a pair of sub-slit sections. Of the slit-end sectionsof the sub-slit sections, the rigidity in the direction of expansion or contraction of the width of the slitin at least the portion where the closest-end sectionthat is located in a portion closest to a lock through holeis formed is greater than the rigidity in the direction of expansion or contraction of the width of the slitin the portions where the other slit-end sections 41are formed.

Growing community of inventors

Maebashi, Japan

Takahiro Maniwa