US 2006/0075842 A1 · Transmission equipped with cable-type shift device

Abstract

A transmission equipped with a cable-type shift device comprises a control shaft to control a shift change with rotation and axial-direction movement thereof, an outer lever to be rotated by a shift-direction operation of a change lever, and a counterweight to rotate with the rotation of the control shaft, but not to move with the axial-direction movement of the control shaft. The counterweight includes first and second weight portions, an arm portion to interconnect these weight portions, and a support axis disposed so as to extend vertically. The support axis rotatably supports a substantial gravity center of the first and second weight portions and the arm portion. Accordingly, the counterweight can be supported smoothly and the shift feeling can be improved properly with a relatively small force for the select-direction operation of the change lever.

Claims10

Dependent claims

A transmission equipped with a cable-type shift device, comprising:

a control shaft operative to control a shift change with rotation and axial-direction movement thereof in a case of the transmission;
an outer lever operative to be rotated by a shift-direction operation of a change lever, the outer lever being fixed to said control shaft outside the case of the transmission and coupled to the change lever via a cable;
and
a counterweight operative to rotate with the rotation of said control shaft, but not to move with the axial-direction movement of said control shaft,
wherein said counterweight includes a first weight portion and a second weight portion, an arm portion to interconnect the first and second weight portions, and a support axis disposed so as to extend vertically apart from said control shaft, and the support axis rotatably supports a substantial gravity center of an entire of the first and second weight portions and the arm portion.

2 more elements

A transmission equipped with a cable-type shift device, which is disposed in an engine room of a vehicle and is coupled to an laterally-disposed engine via a clutch, comprising:

a case of the transmission disposed near a vehicle component;
a control shaft operative to control a shift change with rotation and axial-direction movement thereof in the case of the transmission;
an outer lever operative to be rotated by a shift-direction operation of a change lever, the outer lever being fixed to said control shaft outside the case of the transmission and coupled to the change lever via a cable;
and
a counterweight operative to rotate with the rotation of said control shaft, but not to move with the axial-direction movement of said control shaft;
wherein said counterweight includes a first weight portion and a second weight portion which is lighter than the first weight portion, a support axis disposed so as to extend vertically apart from said control shaft, and an arm portion including a first portion which interconnects said support axis and said first weight portion and a second portion which interconnects said axis support and the second weight portion and which is longer than the first portion, the support axis is disposed on an upper face of the case of the transmission at a portion which is the furthest away from the engine, and said counterweight is constituted such that the second weight portion rotates in a space which is enclosed by an outer peripheral portion of a housing of the clutch and an outer peripheral portion of the case of the transmission.

3 more elements

Dependencies are inferred from the claim text.

Transmission equipped with cable-type shift device

Life of this patent

Transmission equipped with cable-type shift device

Life of this patent

Abstract

Claims10