Vehicle window regulator mechanism

Claim 2

A vehicle window regulator mechanism adapted to raise and lower a window panel in a vehicle body window opening, the window panel being vertically divided into substantially coplanar visibility and ventilation sections, the window regulator mechanism being characterized in that it comprises: a mounting plate, a gear sector pivotally mounted on a first pivot shaft carried by the mounting plate, a first regulator arm swingable intermediate its ends on a second pivot shaft journalled in the mounting plate, the first regulator arm at one end being coupled to the ventilation section and at its other end having a cam slot, a follower mounted on the gear sector projecting into the cam slot, a second regulator arm swingable at one end about the pivot shaft on which the first regulator arm is pivoted and coupled at its other end to the visibility section, a follower carried on the second regulator arm in contact with a cam slot in the gear sector, the respective followers and cam slots being programmed so that upon rotation of the gear sector in window opening direction the ventilation section is driven to a fully lowered position before the visibility section starts to lower and upon rotation of the gear sector in window closing direction the visibility section is driven to a fully raised position before the ventilation section starts to rise, the cam slot in the first regulator arm having an elongated arcuate section, a transitional section and a terminal arcuate section having a radius about the gear sector pivot axis, whereby, upon the gear sector being rotated in ventilation section lowering direction, the cam follower on the gear sector moves relative to the elongated arcuate section to the transitional section as the ventilation section is cammed to its fully lowered position, and, after passing through the transitional section, the cam follower idles in the terminal arcuate section and holds the ventilation section at its lowered position, and drive pinion means for rotating the gear sector about its pivot axis.

Claim 3

A vehicle window regulator mechanism according to claim 1, in which: the cam slot in the gear sector coacting with the follower in the second regulator arm has an arcuate section having a radius about the gear sector pivot axis, a transitional section and a straight inclined section, whereby, upon the gear sector being rotated in visibility section lowering direction, the cam follower carried by the second regulator arm moves in the arcuate section of the cam slot in the gear sector without transmitting movement to the visibility section until the transitional section is reached, and, as the sector rotates further, the cam follower moves from the transitional section and travels in the straight section of the cam slot in the gear sector allowing the visibility section to lower.

Claim 4

A vehicle window regulator mechanism according to claim 2, in which: the second regulator arm is coupled to the shaft to turn with the latter as the arm is raised and lowered, and a counterbalance spring means is also coupled to the shafT to counterbalance the weight of the visibility section of the window panel.

Claim 5

A vehicle window regulator mechanism adapted to raise and lower a window panel in a vehicle body window opening, the window panel being vertically divided into substantially coplanar visibility and ventilation sections, the window regulator mechanism being characterized in that it comprises: a mounting plate, a gear sector pivotally mounted on a first pivot shaft carried by the mounting plate, a first regulator arm swingable intermediate its ends on a second pivot shaft journalled in the mounting plate, the first regulator arm at one end being coupled to the ventilation section and at its other end having a cam slot, a follower mounted on the gear sector projecting into the cam slot, a second regulator arm swingable at one end about the pivot shaft on which the first regulator arm is pivoted and coupled at its other end to the visibility section, a follower carried on the second regulator arm in contact with a cam slot in the gear sector, the respective followers and cam slots being programmed so that upon rotation of the gear sector in window opening direction the ventilation section is driven to a fully lowered position before the visibility section starts to lower and upon rotation of the gear sector in window closing direction the visibility section is driven to a fully raised position before the ventilation section starts to rise, the cam slot in the first regulator arm having an elongated arcuate section, a transitional section and a terminal arcuate section having a radius about the gear sector pivot axis, the cam slot in the gear sector coacting with the follower in the second regulator arm having an arcuate section having a radius about the gear sector pivot axis, a transitional section and an inclined straight section; whereby, upon the gear sector being rotated in window panel lowering direction, the cam follower on the gear sector moves in the elongated arcuate section of the slot in the first regulator arm to the transitional section as the ventilation section is cammed to its fully lowered position, and the cam follower carried by the second regulator arm moves in the arcuate section to the transitional section of the slot without transmitting movement to the ventilation section of the window panel, and, further, upon the gear sector being rotated in continuous window panel lowering direction, the cam follower on the gear sector moves from the transitional section of the slot in the first regulator arm through the terminal arcuate section of the latter without causing further lowering movement of the ventilation section, and simultaneously the cam follower carried by the second regulator arm moves from the transitional section of the slot in the gear sector through the inclined straight section of the latter to cause the visibility section to drop to a fully lowered position, and drive pinion means for rotating the gear sector about its pivot axis.

Claim 6

A vehicle window regulator mechanism adapted to raise and lower a window panel in a vehicle body window opening, the window panel being vertically divided into substantially coplanar visibility and ventilation sections, the window regulator mechanism being characterized in that it comprises: a mounting plate, a gear sector pivotally mounted on a first pivot shaft carried by the mounting plate, a first regulator arm swingable intermediate its ends on a second pivot shaft journalled in the mounting plate, the first regulator arm at one end being coupled to the ventilation section and at its other end having a cam slot, a follower mounted on the gear sector projecting into the cam slot, a second regulator arm swingable at one end about the pivot shaft on which the first regulator arm is pivoted and coupled at its other end to the visibility section, a follower carried on the second regulator arm in contact with a cam slot in the gear sector, the respective followers and cam slots being programmed so that upon rotation of the gear sector in window opening direction the ventilation section is driven to a fully lowered position before the visibility section starts to lower and upon rotation of the gear sector in window closing direction the visibility section is driven to a fully raised position before the ventilation section starts to rise, the cam slot in the first regulator arm having an elongated arcuate section, a transitional section and a terminal arcuate section having a radius about the gear sector pivot axis, the cam slot in the gear sector coacting with the follower in the second regulator arm having an arcuate section having a radius about the gear sector pivot axis, a transitional section and an inclined straight section; whereby, upon the gear sector being rotated in window panel lowering direction, the cam follower on the gear sector moves in the elongated arcuate section of the slot in the first regulator arm to the transitional section as the ventilation section is cammed to its fully lowered position, and the cam follower carried by the second regulator arm moves in the arcuate section to the transitional section of the slot without transmitting movement to the ventilation section of the window panel, and, further, upon the gear sector being rotated in continuous window panel lowering direction, the cam follower on the gear sector moves from the transitional section of the slot in the first regulator arm through the terminal arcuate section of the latter without causing further lowering movement of the ventilation section, and simultaneously the cam follower carried by the second regulator arm moves from the transitional section of the slot in the gear sector through the inclined straight section of the latter to cause the visibility section to drop to a fully lowered position, and drive pinion means for rotating the gear sector about its pivot axis.

Claim 7

A vehicle window regulator mechanism according to Claim 4, in which: the second regulator arm is coupled to the shaft to turn the latter as the arm is raised and lowered, and a counterbalance spring means is also coupled to the shaft to counterbalance the weight of the visibility section of the window panel.