Transfer
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMizuki Imafuku
Life of this patent
Estimating the term…
Abstract
A transfer includes an input shaft, an output shaft, an output member, a high-low switching mechanism, a clutch, an actuator, a screw mechanism, a first transmitting mechanism, a cam engaging member, a drum cam, and a second transmitting mechanism. The high-low switching mechanism is configured to change a rate of rotation of the input shaft and transmit a resultant rotation to the output shaft. The second transmitting mechanism is configured to transmit a movement of one of the drum cam and the cam engaging member that is connected to a second shaft to the high-low switching mechanism via the second shaft such that the high-low switching mechanism switches between the high-speed gear and the low-speed gear.
Claims12
A transfer comprising:
- an input shaft;
- an output shaft;
- an output member configured to output power to a different output destination than the output shaft;
- a high-low switching mechanism configured to change a rate of rotation of the input shaft and transmit a resultant rotation to the output shaft, the high-low switching mechanism including a high-speed gear and a low-speed gear;
- a clutch configured to transmit or interrupt a transmission of some of the power of the output shaft from the output shaft to the output member, or adjust transfer torque that is transmitted from the output shaft to the output member;
- an actuator;
- a screw mechanism that includes a threaded shaft member and a nut member that are a pair of screw members, the threaded shaft member and the nut member screwing together, the screw mechanism configured to rotatably drive one of the screw members, of the threaded shaft member and the nut member, around an axis of the output shaft with the actuator such that the nut member moves in a direction of an axis of the output shaft;
- a first transmitting mechanism configured to transmit a movement of the nut member that is in the direction of the axis of the output shaft to the clutch;
- a second transmitting mechanism including a second shaft, the second shaft being arranged parallel to the output shaft, the second shaft configured to move in a direction of an axis of the second shaft;
- a cam engaging member that is connected to one of the second shaft and the one screw member;
- and
- a drum cam that is connected to the other of the second shaft and the one screw member, the drum cam including a cam groove that engages with the cam engaging member, the drum cam configured to move relative to the cam engaging member in the direction of the axis of the second shaft, by rotation of the one screw member around the axis of the output shaft, wherein
- the second transmitting mechanism is configured to transmit a movement, which is in the direction of the axis of the second shaft, of one of the drum cam and the cam engaging member that is connected to the second shaft to the high-low switching mechanism via the second shaft such that the high-low switching mechanism switches between the high-speed gear and the low-speed gear.
Dependencies are inferred from the claim text.