US 6,382,491 B1 · Seat for motor vehicles

Seat for a motor vehicle, comprising:

a bottom part which is supported in use by at least one front leg and at least one back leg on a vehicle floor, a bottom end of the front leg being mounted pivotably on the vehicle floor parallel to a seat transverse axis which runs transversely with respect to a seat longitudinal axis running from the back of the seat towards the front of the seat, a top end of the front leg being mounted pivotably on the bottom part of the seat parallel to the seat transverse axis, a bottom end of the back leg being mounted pivotably on the vehicle floor parallel to the seat transverse axis, and a top end of the back leg being mounted pivotably on the bottom part of the seat parallel to the seat transverse axis, and
a seat-adjustment device operable to adjust the seat between at least two positions in a direction of the seat longitudinal axis, the seat-adjustment device having at least one strut, which at one end is mounted pivotably on the vehicle floor, and at the other end is mounted pivotably on the bottom part of the seat, in each case parallel to the seat transverse axis, the strut being of adjustable length, a seat position being set by setting an associated strut length, the strut having a tube and a rod which is mounted in the tube in such a manner that the rod can be adjusted in two directions,
wherein the seat-adjustment device has a locking device which can be adjusted between an activated state, in which the tube and the rod are fixed relative to one another in axial positions which are each associated with one of the seat positions, and a deactivated state, in which the rod can be adjusted in two directions in the tube,
wherein the locking device has a slide bush which is fixedly connected to the tube, in which said slide bush the rod is mounted in such a manner that the rod can be adjusted in a controlled manner in the axial direction, and in which at least one radial aperture is formed in an axial plane,
wherein a locking element, is accommodated in each said radial aperture, said locking element being mounted in the aperture in such a manner that the locking element can be adjusted in the radial direction, the radial extent of the locking element being greater than the radial extent of the aperture,
wherein each of the axial positions between the tube and the rod, which can be fixed by the locking device is assigned the axial plane on the rod, in which said axial plane at least one radial depression is formed into which the locking elements can penetrate in the radial direction, the radial extent of the depressions being shorter than the radial extent of the locking element,
wherein the locking device has a rotary sleeve which is fitted coaxially onto an outside of the slide bush and is mounted on the slide bush in such a manner that the locking device can be adjusted rotationally between a securing position and a release position,
wherein, in the axial plane for each said locking element, a radial recess is provided in an inner wall of the rotary sleeve, the radial extent of each of said recesses is at least as great as the radial extent of the depressions in the rod,
wherein, in the release position, the radial recesses are flush with the radial apertures, so that each said locking element can be freely adjusted in the radial direction between the respective depression and recess, and
wherein, in the securing position, the inner wall of the rotary sleeve covers the at least one radial aperture and thereby secures the corresponding locking element in the associated depression in the rod.

7 more elements

Seat for a motor vehicle, comprising:

a bottom part which is supported in use by at least one front leg and at least one back leg on a vehicle floor, a bottom end of the front leg being mounted pivotably on the vehicle floor parallel to a seat transverse axis which runs transversely with respect to a seat longitudinal axis running from the back of the seat towards the front of the seat, a top end of the front leg being mounted pivotably on the bottom part of the seat parallel to the seat transverse axis, a bottom end of the back leg being mounted pivotably on the vehicle floor parallel to the seat transverse axis, and a top end of the back leg being mounted pivotably on the bottom part of the seat parallel to the seat transverse axis, and
a seat-adjustment device operable to adjust the seat between at least two positions in a direction of the seat longitudinal axis, the seat-adjustment device having at least one strut, which at one end is mounted pivotably on the vehicle floor, and at the other end is mounted pivotably on the bottom part of the seat, in each case parallel to the seat transverse axis, the strut being of adjustable length, a seat position being set by setting an associated strut length, the strut having a tube and a rod which is mounted in the tube in such a manner that the rod can be adjusted in two directions,
wherein the seat-adjustment device has a locking device which can be adjusted between an activated state, in which the tube and the rod are fixed relative to one another in axial positions which are each associated with one of the seat positions, and a deactivated state, in which the rod can be adjusted in two directions in the tube, and
wherein the seat-adjustment device has a securing device which, in an activated state, limits the adjustment movements of the seat, with the locking device unlocked, in the forward direction at a forward seat position and which in a deactivated state allows a seat adjustment which goes beyond the forward seat position in the forward direction and in which the seat simultaneously moves downwards and, on reaching a forward and lower limit position, is in an out-of-use position.

1 more element

Seat for a motor vehicle, comprising:

a bottom part which is supported in use by at least one front leg and at least one back leg on a vehicle floor, a bottom end of the front leg being mounted pivotably on the vehicle floor parallel to a seat transverse axis which runs transversely with respect to a seat longitudinal axis running from the back of the seat towards the front of the seat, a top end of the front leg being mounted pivotably on the bottom part of the seat parallel to the seat transverse axis, a bottom end of the back leg being mounted pivotably on the vehicle floor parallel to the seat transverse axis, and a top end of the back leg being mounted pivotably on the bottom part of the seat parallel to the seat transverse axis, and
a seat-adjustment device operable to adjust the seat between at least two positions in a direction of the seat longitudinal axis, the seat-adjustment device having at least one strut, which at one end is mounted pivotably on the vehicle floor, and at the other end is mounted pivotably on the bottom part of the seat, in each case parallel to the seat transverse axis, the strut being of adjustable length, a seat position being set by setting an associated strut length, the strut having a tube and a rod which is mounted in the tube in such a manner that the rod can be adjusted in two directions,
wherein the seat-adjustment device has a locking device which can be adjusted between an activated state, in which the tube and the rod are fixed relative to one another in axial positions which are each associated with one of the seat positions, and a deactivated state, in which the rod can be adjusted in two directions in the tube,
wherein the strut of the seat-adjustment device at one end is mounted pivotably in the region of the bottom end of the back leg and at the other end is mounted pivotably in the region of the top end of the front leg, and
wherein the seat-adjustment device has a securing device which, in an activated state, limits the adjustment movements of the seat, with the locking device unlocked, in the forward direction at a forward seat position and which in a deactivated state allows a seat adjustment which goes beyond the forward seat position in the forward direction and in which the seat simultaneously moves downwards and, on reaching a forward and lower limit position, is in an out-of-use position.

2 more elements

Seat for a motor vehicle, comprising:

a bottom part which is supported in use by at least one front leg and at least one back leg on a vehicle floor, a bottom end of the front leg being mounted pivotably on the vehicle floor parallel to a seat transverse axis which runs transversely with respect to a seat longitudinal axis running from the back of the seat towards the front of the seat, a top end of the front leg being mounted pivotably on the bottom part of the seat parallel to the seat transverse axis, a bottom end of the back leg being mounted pivotably on the vehicle floor parallel to the seat transverse axis, and a top end of the back leg being mounted pivotably on the bottom part of the seat parallel to the seat transverse axis, and
a seat-adjustment device operable to adjust the seat between at least two positions in a direction of the seat longitudinal axis, the seat-adjustment device having at least one strut, which at one end is mounted pivotably on the vehicle floor, and at the other end is mounted pivotably on the bottom part of the seat, in each case parallel to the seat transverse axis, the strut being of adjustable length, a seat position being set by setting an associated strut length, the strut having a tube and a rod which is mounted in the tube in such a manner that the rod can be adjusted in two directions,
wherein the seat-adjustment device has a locking device which can be adjusted between an activated state, in which the tube and the rod are fixed relative to one another in axial positions which are each associated with one of the seat positions, and a deactivated state, in which the rod can be adjusted in two directions in the tube,
wherein the seat has an entry-aid device which makes the seat adjustable between an in-use position, in which the seat can be used as intended, and an entry position, in which the seat has been pivoted forwards, with respect to the in-use position, about a pivot axis in the direction of the seat longitudinal axis which runs from the back of the seat towards the front of the seat, and thus facilitates access to a space arranged behind the seat, and
wherein the entry-aid device has a retaining device which in an activated state secures a telescopic rod in a retracted position, associated with the in-use position, and in a deactivated state allows the length of the telescopic rod to be adjusted in order to pivot the seat.

2 more elements

Seat for a motor vehicle, having a bottom part, which is supported in use by at least one front leg and at least one back leg on a vehicle floor, the back leg being formed by a telescopic rod of adjustable length, a bottom end of the back leg being mounted pivotably on the vehicle floor and a top end of the back leg being mounted pivotably on the bottom part of the seat, in each case parallel to a seat transverse axis running transversely to a seat longitudinal axis, the bottom part of the seat being mounted pivotably, in a front region, relative to the vehicle floor, about a pivot axis running parallel to the seat transverse axis,

wherein the seat has an entry-aid device which makes the seat adjustable between an in-use position, in which the seat can be used as intended, and an entry position, in which the seat has been pivoted forwards, with respect to the in-use position, about the pivot axis in the direction of the seat longitudinal axis which runs from the back of the seat towards the front of the seat, and thus facilitates access to a space arranged behind the seat,
wherein the entry-aid device has a retaining device which in an activated state secures the telescopic rod in a retracted position, associated with the in-use position, and in a deactivated state allows the length of the telescopic rod to be adjusted in order to pivot the seat,
wherein the telescopic rod has an outer tube and an inner rod which can be retracted and extended coaxially with respect to the tube,
wherein one of the outer tube and inner rod is mounted pivotably on the bottom part of the seat and the other is mounted pivotably on the vehicle floor,
wherein, in a section facing towards a bearing point of the inner rod, at least one locking member is mounted on the inner rod in such a manner that the locking member can be adjusted in a radial direction,
wherein, in a section facing away from a bearing point of the outer tube, a radial locking socket is formed on the outer tube for each said locking member into said locking socket the corresponding locking member can engage in the radial direction when the inner rod has been retracted into the outer tube, and
wherein the retaining device has an actuator, with which the at least one locking member can be pulled out of the locking socket in order to deactivate the retaining device.

4 more elements

Seat for motor vehicles

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Seat for motor vehicles

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Abstract

Claims24