Gear and vehicle seat comprising such a gear

A gear for adjusting two parts that can be displaced in relation to each other, particularly vehicle parts of a seat adjustment device, of a window lifter or a sliding roof, the first one of the parts comprising;

• a non-rotatable spindle and the gear comprising a worm wheel, which has a spindle nut non-rotatable thereto for driving the spindle,
• a drivable worm for transmitting a driving force to the worm wheel, the worm having first and second opposing sides with each side having a square socket, and with the worm having a driveshaft running axially through the worm, and
• a single-piece elastic gear housing, which receives and supports the worm and the worm wheel and which can be connected non-displaceably to the second one of the parts in the displacement direction thereof,
• wherein the gear housing comprises a worm bearing and a worm wheel bearing,
• the worm bearing is configured in two opposite walls of the gear housing and comprises a worm bearing access opening or
• the worm wheel bearing is configured in two opposite walls of the gear housing and comprises a worm wheel bearing access opening,
• the gear housing is formed by a single-piece body with the worm bearing and the worm wheel bearing,
• first and second opposing drive shaft mounts are provided on the first and second sides of the worm in the axial direction with the first and second drive shaft mounts each configured to receive the drive shaft, and
• the worm wheel bearing access opening or a section in the transition region between the worm wheel bearing access opening and the worm wheel bearing has a smaller distance (d2) than the diameter (d1) of a worm wheel shaft of the worm wheel
• wherein the single-piece elastic gear housing receives both the drivable worm and the worm wheel from beneath the single-piece elastic gear housing.

A gear for adjusting two parts that can be displaced in relation to each other, particularly vehicle parts of a seat adjustment device, of a window lifter or a sliding roof, the first one of the parts comprising:

• a non-rotatable spindle and the gear comprising a worm wheel, which has a spindle nut non-rotatable thereto for driving the spindle,
• a drivable worm for transmitting a driving force to the worm wheel, the worm having first and second opposing sides with each side having a square socket, and with the worm having a driveshaft running axially through the worm, and
• a single-piece elastic gear housing, which receives and supports the worm and the worm wheel and which can be connected non-displaceably to the second one of the parts in the displacement direction thereof,
• wherein the gear housing comprises a worm bearing and a worm wheel bearing,
• the worm bearing is configured in two opposite walls of the gear housing and comprises a worm bearing access opening or
• the worm wheel bearing is configured in two opposite walls of the gear housing and comprises a worm wheel bearing access opening,
• the gear housing is formed by a single-piece body with the worm bearing and the worm wheel bearing,
• first and second opposing drive shaft mounts are provided on the first and second sides of the worm in the axial direction with the first and second drive shaft mounts each configured to receive the drive shaft, and
• the worm bearing access opening or a section in the transition region between the worm bearing access opening and the worm bearing has a smaller distance (d4) than the diameter (d3) of a worm shaft of the worm
• wherein the single-piece elastic gear housing receives both the drivable worm and the worm wheel from beneath the single-piece elastic gear housing.