SHIFT COLLAR ASSEMBLY FOR A POWER TRANSFER UNIT
First Claim
1. A disconnect assembly for a power transfer unit, comprising:
- a cam selectively driven for rotation about an axis and having a cam surface that is inclined relative to the axis of rotation and a void circumferentially spaced from the cam surface; and
a cam follower having a cam engagement surface arranged to be engaged by the cam surface during at least a portion of the rotation of the cam so that the cam follower is displaced axially during at least a portion of the rotation of the cam, and wherein one or both of the cam and the cam follower includes an interface surface provided at an angle to the axis of rotation to control axial movement of the cam follower during at least a portion of the rotation of the cam when the cam surface is not engaged with the cam engagement surface.
1 Assignment
0 Petitions
Accused Products
Abstract
In at least some implementations, a disconnect assembly for a power transfer unit includes a cam and a cam follower. The cam is driven for rotation and has a cam surface that is inclined relative to an axis of rotation and a void spaced from the cam surface. The cam follower has a cam engagement surface and is arranged to be engaged by the cam surface so that the cam follower is displaced axially during at least a portion of the rotation of the cam. One or both of the cam and the cam follower includes an interface surface provided at an angle to the axis of rotation to control axial movement of the cam follower during at least a portion of the rotation of the cam when the cam surface is not engaged with the cam engagement surface.
9 Citations
20 Claims
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1. A disconnect assembly for a power transfer unit, comprising:
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a cam selectively driven for rotation about an axis and having a cam surface that is inclined relative to the axis of rotation and a void circumferentially spaced from the cam surface; and a cam follower having a cam engagement surface arranged to be engaged by the cam surface during at least a portion of the rotation of the cam so that the cam follower is displaced axially during at least a portion of the rotation of the cam, and wherein one or both of the cam and the cam follower includes an interface surface provided at an angle to the axis of rotation to control axial movement of the cam follower during at least a portion of the rotation of the cam when the cam surface is not engaged with the cam engagement surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A disconnect assembly for a power transfer unit, comprising:
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an input shaft rotated about an axis; a disconnect shaft axially aligned with the input shaft; a collar movable relative to the input shaft and disconnect shaft from an engaged position wherein the collar couples together the input shaft and the disconnect shaft so that rotation of the input shaft causes rotation of the disconnect shaft and a disengaged position wherein the collar does not couple the input shaft and disconnect shaft and the disconnect shaft does not rotate with the input shaft; and a shock absorbing device carried by the input shaft to engage the collar when the collar is in its engaged position. - View Dependent Claims (11, 12, 13, 18, 19, 20)
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14. A disconnect assembly for a power transfer unit, comprising:
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an input shaft rotated about an axis; a disconnect shaft axially aligned with the input shaft; a collar movable relative to the input shaft and disconnect shaft from an engaged position wherein the collar couples together the input shaft and the disconnect shaft so that rotation of the input shaft causes rotation of the disconnect shaft and a disengaged position wherein the collar does not couple the input shaft and disconnect shaft and the disconnect shaft does not rotate with the input shaft; a cam selectively driven for rotation about an axis and having a plurality of land members and a void on either side of each land member, wherein each land member includes a cam surface that is inclined relative to the axis of rotation; a cam follower having a plurality of land members and a void on either side of each land member of the cam follower, wherein the cam is rotated relative to the cam follower to selectively position the land members of the cam within the voids of the cam follower and to selectively remove the land members of the cam from the voids of the cam follower to axially displace the cam follower away from the cam; and an interface surface carried by one or both of the cam and cam follower to control the axial movement of the cam follower as the land members of the cam are moved into the voids of the cam follower, wherein the collar is operably coupled to the cam follower so that the collar moves axially when the cam follower moves axially to move the collar between the engaged and disengaged positions and wherein the interface surface controls movement of the cam follower that corresponds to movement of the collar at least part of the way from its disengaged to it engaged position. - View Dependent Claims (15, 16, 17)
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Specification