Rotation transmitting mechanism and lever switch adopting rotation transmitting mechanism

Patent metadata

Field	Value
Publication number	US-2016336129-A1
Application number	US-201615153700-A
Country	US
Kind code	A1
Filing date	May 12, 2016
Priority date	May 13, 2015
Publication date	Nov 17, 2016
Grant date	—

Abstract

A rotation transmitting mechanism may include first and second tubular holders connected to first and second tubular members, respectively, to be incapable of rotating relative thereto, and a third tubular holder provided to project from an inside of the second tubular holder to the first tubular holder side and connected to the second tubular holder to be incapable of rotating relative thereto. The rotation transmitting mechanism may also include an inner coil spring, the ends of which are inserted inside of and respectively fixed to the first and third tubular holders, and an outer coil spring, the ends of which are inserted outside of and respectively fixed to the first and third tubular holders. The coils may have the same winding direction. In certain states, the second and third tubular holders may be connected to be incapable of rotating relative to each other.

First claim

1 . A rotation transmitting mechanism that is inserted outside of a rotation transmitting member for connecting a first shaft member and a second shaft member by a flexible shaft to be rotatable integrally and connects a first tubular member inserted outside of the first shaft member side and a second tubular member inserted outside of the second shaft member side for rotation transmission, the rotation transmitting mechanism comprising:
a first tubular holder connected to the first tubular member to be incapable of rotating relative thereto, a second tubular holder connected to the second tubular member to be incapable of rotating relative thereto, a third tubular holder provided to project from an inside of the second tubular holder to the first tubular holder side and connected to the second tubular holder to be incapable of rotating relative thereto, an inner coil spring having one end side and another end side in a longitudinal direction that are inserted inside of the first tubular holder and the third tubular holder, the one end side and the other end side being respectively fixed to the first tubular holder and the third tubular holder, and an outer coil spring having one end side and another end side in the longitudinal direction that are inserted outside of the first tubular holder and the third tubular holder, the one end side and the other end side being respectively fixed to the first tubular holder and the second tubular holder, wherein a winding direction of the inner coil spring is the same as that of the outer coil spring, and in a state where an angular position of the second tubular holder around a center axis thereof is arranged in an angular position where torsional stress of causing an inner periphery of the outer coil spring to come into pressure contact with the first tubular holder and the third tubular holder acts on the outer coil spring, and an angular position of the third tubular holder around the center axis is arranged in an angular position where torsional stress of causing an outer periphery of the inner coil spring to come into pressure contact with the first tubular holder and the third tubular holder acts on the inner coil spring, the second tubular holder and the third tubular holder are connected to be incapable of rotating relative to each other.

2 . The rotation transmitting mechanism according to claim 1 , wherein in a state where a center axis of the first tubular holder is in conformity with the center axis of the third tubular holder, the first tubular holder and the third tubular holder are provided in a positional relation in which a gap can be produced between the first tubular holder and the second tubular holder.

3 . A rotation transmitting mechanism that is inserted outside of a rotation transmitting member for connecting a first shaft member and a second shaft member by a flexible shaft to be rotatable integrally and connects a first tubular member inserted outside of the first shaft member side and a second tubular member inserted outside of the second shaft member side for rotation transmission, the rotation transmitting mechanism comprising:
a first tubular holder connected to the first tubular member to be incapable of rotating relative thereto, a second tubular holder connected to the second tubular member to be incapable of rotating relative thereto, a third tubular holder provided to project from an inside of the second tubular holder to the first tubular holder side and connected to the second tubular holder to be incapable of rotating relative thereto, an inner tubular wall part extending from the first tubular holder to the third tubular holder side, an outer wall part extending from the first tubular holder to the second tubular holder side and surrounding an outer periphery of the inner tubular wall part, an inner coil spring having one end side and another end side in a longitudinal direction that are inserted outside of the inner tubular wall part and the third tubular holder, the one end side and the other end side being respectively fixed to the first tubular holder and the third tubular holder, and an outer coil spring having one end side and another end side in the longitudinal direction that are inserted inside of the outer wall part and the third tubular holder, the one end side and the other end side being respectively fixed to the first tubular holder and the second tubular holder, wherein the outer coil spring is formed to be larger in diameter than the inner coil spring, a winding direction of the inner coil spring is the same as that of the outer coil spring, and in a state where an angular position of the second tubular holder around a center axis thereof is arranged in an angular position where torsional stress of causing an outer periphery of the outer coil spring to come into pressure contact with the outer wall part and the third tubular holder acts on the outer coil spring, and an angular position of the third tubular holder around the center axis is arranged in an angular position where torsional stress of causing an inner periphery of the inner coil spring to come into pressure contact with the inner tubular wall part and the third tubular holder acts on the inner coil spring, the second tubular holder and the third tubular holder are connected to be incapable of rotating relative to each other.

4 . A rotation transmitting mechanism that is inserted outside of a rotation transmitting member for connecting a first shaft member and a second shaft member by a flexible shaft to be rotatable integrally and connects a first tubular member inserted outside of the first shaft member side and a second tubular member inserted outside of the second shaft member side for rotation transmission, the rotation transmitting mechanism comprising:
a first tubular holder connected to the first tubular member to be incapable of rotating relative thereto, a second tubular holder connected to the second tubular member to be incapable of rotating relative thereto, a third tubular holder provided to project from an inside of the second tubular holder to the first tubular holder side and connected to the second tubular holder to be incapable of rotating relative thereto, an inner tubular wall part extending from the first tubular holder to the third tubular holder side, an outer wall part extending from the first tubular holder to the second tubular holder side and surrounding an outer periphery of the inner tubular wall part, an inner coil spring having one end side and another end side in a longitudinal direction that are inserted inside of the inner tubular wall part and the third tubular holder, the one end side and the other end side being respectively fixed to the first tubular holder and the third tubular holder, and an outer coil spring having one end side and another end side in the longitudinal direction that are inserted inside of the outer wall part and the third tubular holder, the one end side and the other end side being respectively fixed to the first tubular holder and the second tubular holder, wherein a winding direction of the inner coil spring is in reverse to that of the outer coil spring, and in a state where an angular position of the second tubular holder around a center axis thereof is arranged in an angular position where torsional stress of causing an outer periphery of the outer coil spring to come into pressure contact with the outer wall part and the second tubular holder acts on the outer coil spring, and an angular position of the third tubular holder around the center axis is arranged in an angular position where torsional stress of causing an outer periphery of the inner coil spring to come into pressure contact with the inner tubular wall part and the third tubular holder acts on the inner coil spring, the second tubular holder and the third

Assignees

• Valeo Japan Co Ltd

Inventors

• Amimoto Kenji
• Okuhara Takeshi

Classifications

• H01H2235/01

  Spiral spring · CPC title

• H01H21/22 Primary

  Operating parts, e.g. handle · CPC title

• H01H19/14

  Operating parts, e.g. turn knob · CPC title

• H01H21/04

  Cases; Covers · CPC title

• F16D3/72 Primary

  with axially-spaced attachments to the coupling parts (F16D3/56 takes precedence) · CPC title