Gear shift operation mechanism
AssigneeKeihin Seimitsu Kogyo Co., Ltd.
InventorsNobuyuki Kawame, Masaaki Fusegi
Life of this patent
Estimating the term…
Abstract
A gear shift operation mechanism capable of achieving reduction in size and weight, reduction in power consumption, simplification and reduction in number of component parts, and cost reduction is provided. A screw shaft that configures a ball screw, a motor that rotates the screw shaft, a nut that is screwed onto the screw shaft, a clutch that is disposed on the screw shaft, and a select lever that is integrated with the screw shaft by switching on the clutch, and has restraint cancelled with respect to the screw shaft by switching off the clutch are included, one end of a main lever is engaged with the nut, the other end is engaged or connected with a shaft, and the select lever is engaged with the main lever.
Claims12
A gear shift operation mechanism that rotates a shaft in a shift direction by a lever, and moves the shaft in a select direction by the lever, comprising:
- a screw shaft that configures a ball screw;
- a motor that rotates the screw shaft;
- a nut that is screwed onto the screw shaft;
- a clutch that is disposed on the screw shaft;
- and
- a select lever that is integrated with the screw shaft by switching on the clutch and that is unrestrained with respect to the screw shaft by switching off the clutch, wherein
- one end of the lever is engaged with the nut, the other end is engaged with the shaft, and the select lever is engaged with the lever,
- the lever includes a pair of arm portions, and the select lever is inserted between the arm portions with no clearance between the arm portions and the select lever such that the select lever is relatively movable in an axial direction of the shaft with respect to the arm portions, and
- the clutch includes an armature, and one end of the select lever is coupled to the armature.
A gear shift operation mechanism that rotates a shaft in a shift direction by a lever, and moves the shaft in a select direction by the lever, comprising:
- a screw shaft that configures a ball screw;
- a motor that rotates the screw shaft;
- a nut that is screwed onto the screw shaft;
- a clutch that is disposed on the screw shaft;
- and
- a select lever that is integrated with the screw shaft by switching on the clutch and that is unrestrained with respect to the screw shaft by switching off the clutch, wherein
- one end of the lever is engaged with the nut, the other end is engaged with the shaft, and the select lever is engaged with the lever,
- the lever includes a pair of arm portions, and the select lever is inserted between the arm portions with substantially no clearance between the arm portions and the select lever such that the select lever is relatively movable in an axial direction of the shaft with respect to the arm portions, and
- a first end of the select lever is coupled to the clutch, and a second end of the select lever is rotationally fitted to the screw shaft.
Dependencies are inferred from the claim text.