SEAT ADJUSTMENT

AJUSTEMENT DE SIEGE

English Abstract

A seat depth adjuster for a vehicle seat consisting of a carrier plate, a base
plate
connected to the carrier plate by a sliding guide and with an adjustment
mechanism
with an electrical drive for adjusting the carrier plate to the base plate,
wherein the
base plate can be mounted on a seat trough, wherein the seat depth adjuster
can be
mounted on the seat trough and an electrical drive is arranged on the carrier
plate.

French Abstract

Un ajusteur de la profondeur dun siège de véhicule comprend une plaque de support, une plaque de base raccordée à la plaque de support par un guide coulissant et à un mécanisme dajustement ayant un moteur électrique pour ajuster la plaque de support à la plaque de base, la plaque de base étant installée sur une auge de siège, lajusteur de la profondeur du siège pouvant être installé sur lauge de siège et un moteur électrique étant disposé sur la plaque de support.

Claims

Claims
1. A seat depth adjuster for a vehicle seat comprising a carrier plate (1), a
base plate
(2) connected to the carrier plate (1) by a sliding guide and with an
adjustment
mechanism with a drive for adjusting the carrier plate (1) to the base plate
(2),
wherein the base plate (2) is mounted on a seat trough, and an electrical
drive (3) is
arranged on the carrier plate (1), the electrical drive (3) comprising an
electrical motor
(4) and a transmission (5), the electrical drive (3) being a spindle drive, a
spindle (6)
being arranged at a right angle to the electrical motor (4), the electrical
drive (3) being
clipped to the carrier plate (1).
2. The seat depth adjuster according to claim 1, wherein the carrier plate (1)
and the
base plate (2) have reinforcement ribs (8, 9).
3. The seat depth adjuster according to claim 1 or 2, wherein the electromotor
(4) is
mounted to the carrier plate (1), a part of the carrier plate extending over
it.
4. The seat depth adjuster according to any one of claims 1 to 3, wherein the
electrical
motor is located at a front side of the carrier plate.
5. The seat depth adjuster of claim 4, wherein a longitudinal axis of the
electrical is
motor extends parallel to the front side of the carrier plate.
6. A seat depth adjuster for a vehicle seat comprising a carrier plate (1), a
base plate
(2) connected to the carrier plate (1) by a sliding guide and with an
adjustment
mechanism with a drive for adjusting the catrier plate (1) to the base plate
(2),
wherein the base plate (2) is mounted on a seat trough, and an electrical
drive (3) is
arranged on the carrier plate (1), the electrical drive (3) comprising an
electrical motor
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(4) and a transmission (5), the electrical drive (3) being a spindle drive, a
spindle (6)
being arranged at a right angle to the electrical motor (4), the electrical
motor (4)
being clipped to the carrier plate (1).
7. The seat depth adjuster according to claim 6, wherein the carrier plate (1)
and the
base plate (2) have reinforcement ribs (8, 9).
8. The seat depth adjuster according to claim 6 or 7, wherein the electromotor
(4) is
mounted to the carrier plate (1), a part of the carrier plate extending over
it.
9. The seat depth adjuster according to any one of claims 6 to 8, wherein the
electrical
motor is located at a front side of the carrier plate.
10. The seat depth adjuster of claim 9, wherein a longitudinal axis of the
electrical is
motor extends parallel to the front side of the carrier plate.
9

Description

Seat Adjustment
The present invention relates to a seat depth adjustment.
Prior art
Refer in the prior art to DE 10 2009 018 754 Al, in which the drive is built
into a seat
trough. The energy is subsequently transferred via a flexible shaft from the
seat
trough into an adjusting mechanism in the seat depth adjuster.
Problem of the invention
There is the problem in seat depth adjustments from the prior art that, for
example, the
electronic drive was received in the seat trough. This, for its part, has,
however, the
disadvantage that the seat trough is overloaded at times with other components
such
as control devices, plug receptacles, cable fastenings, drawers or fans and
that the
additional integration of a drive poses problems.
Solution of the problem
A seat depth adjuster according to the invention is designed for a vehicle
seat. The
vehicle seat is designed for being built into a motor vehicle or a truck or a
boat or an
airplane.
The seat depth adjuster consists of a carrier plate and a base plate.
Furthermore, the
seat depth adjuster comprises a drive that can move the carrier plate to the
base plate.
The moving takes place here by a cooperation of an adjusting mechanism with a
sliding guide.
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Date Regue/Date Received 2022-08-25

The adjusting mechanism serves to move the carrier plate to the base plate.
The
sliding guide ensures that during the shifting a linear lateral movement is
achieved
without the carrier plate being able to be removed from the base plate,
whereby the
base plate can be mounted on a seat trough.
The manual drive and/or the electrical drive are designed in such a manner
that the
seat depth adjuster should be able to be mounted on one and the same seat
trough
construction independently of whether it has a manual drive or an electrical
drive.
Furthermore, the seat depth adjuster in accordance with the invention is
designed for
an electrical drive in such a manner that the electrical drive is arranged on
the carrier
plate. The arrangement of the electrical drive is on the carrier plate, as is
also the case,
for example, for a manual drive. It is primarily of no importance, in which
position of
the carrier plate the electrical drive is arranged. In a preferred exemplary
embodiment
the electrical drive is arranged on the bottom of the carrier plate. The
bottom of the
carrier plate is the side of the carrier plate that faces the base plate in a
proper
mounting. An electromotor requires the most space. Therefore, an electromotor
is
arranged on a part of the carrier plate that extends over the circumference of
the
baseplate. The baseplate is fituily connected to the seat trough. Upon a
moving of the
carrier plate away from the base plate the electromotor is entrained with it.
It is especially advantageous that all essential parts of the seat depth
adjustment can
be screwed onto a seat trough regardless of whether an electrical drive or a
manual
drive is used for the adjustment of the seat depth. This means that even an
electrical
drive can be integrated into the seat depth adjustment, as already takes place
in the
case of the manual drive, by a low total construction depth. As a result, the
same seat
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Date Regue/Date Received 2022-08-25

trough is always used, regardless of whether an electrical or a manual drive
is used,
since, for example, no recesses are used any more in the seat trough in order
to bring
the energy of an electromotor located in the seat trough via a shaft into the
seat depth
adjuster.
The electrical drive also comprises a transmission in addition to the
electromotor. In
another exemplary embodiment the electrical drive is a spindle drive. The
spindle is
arranged substantially at a right angle to the electromotor. In this exemplary
embodiment the base plate has a U-shaped recess into which the spindle
extends.
Furthermore, the spindle drive comprises a spindle anchor that makes possible
a
moving of the carrier plate to the base plate. The spindle is rotated by the
spindle
anchor, adjusting the carrier plate to the base plate.
In another exemplary embodiment either the entire electrical drive or a part
of the
electrical drive can be clipped onto the carrier plate. That means that a part
of the
electrical drive or, for example, only the electromotor can be clipped on
without other
fastening means such as screws or adhesives. To this end the carrier plate
comprises
appropriate receptacles into which the electrical drive or parts of the
electrical drive
can be clipped in by overcoming a first resistance. The clipped-in parts of
the
electrical drive should slide out only during proper usage.
In addition, the manual drive comprises a catch mechanism activated by a
lever. Upon
activation of the lever the catch mechanism is released and the user can shift
the
carrier plate to the base plate. The lever is connected by an activation
element to the
catch mechanism. When the desired position has been reached, the user can, for
example, let go of the lever and the catch mechanism re-engages so that the
carrier
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Date Regue/Date Received 2022-08-25

plate is fixed on the base plate. Since the individual parts of the seat depth
adjuster are
to be manufactured from plastic to the extent possible, reinforcing devices
are
required. Therefore, in an exemplary embodiment according to the invention the
carrier plate and the baseplate comprise appropriate reinforcement ribs.
Brief Description of the figures
Other advantages, details and features result from the following description
of the
figures. The figures show in detail in
Fig. 1 an oblique view from below onto a seat depth adjuster in
accordance with
the invention;
Fig. 2 an oblique view from above onto the seat depth adjuster
according to
figure 1;
Fig. 3 a view from below onto the seat depth adjuster according to
figure!;
Fig. 4 a lateral view of the seat depth adjuster according to
figure 1;
Fig. 5 a front view of the seat depth adjuster according to figure
1;
Fig. 6 a perspective view from above onto a seat depth adjuster
according to
another exemplary embodiment;
Fig. 7 a perspective view from below onto the seat depth adjuster
according to
figure 6; and
Fig. 8 a bottom view of the seat depth adjuster according to figure
6.
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Date Regue/Date Received 2022-08-25

Detailed Description
Figure 1 shows a seat depth adjuster according to the invention. The seat
depth
adjuster according to the invention comprises a carrier plate 1 and a base
plate 2.
Furthermore, an electrical drive 3 is shown that consists of an electromotor,
a
transmission 5 and a spindle 6. The electrical drive 3 is attached to the
bottom of the
carrier plate 1. "Bottom" means here the side of the carrier plate 1 that
faces the base
plate 2. Moreover, a spindle anchor 7 is shown through which the spindle 6
extends.
The spindle anchor 7 brings it about in conjunction with the electromotor 4
and the
transmission 5 that the spindle 6 rotates in the spindle anchor 7 and moves
the carrier
plate 1 to the base plate 2.
According to the invention the electrical drive 3 is connected to the carrier
plate 1 in
such a manner that retains its position relative to the base plate 2 during
the shifting of
the carrier plate 1. This can take place, for example, in that the drive 3 can
be clipped
in prefabricated recesses present on the bottom of the carrier plate 1.
However, it can
also take place in that the electrical drive 3 is screwed fast on the bottom
of the carrier
plate 1. Furthermore, figure 1 shows how the carrier plate 1 comprises
reinforcement
ribs 9 and the base plate 2 comprises reinforcement ribs 8.
Figure 2 shows a top view of figure 1. The carrier plate 1 can be recognized
again in
it.
Figure 3 shows a bottom view onto the seat depth adjuster. The base plate 2
comprises
openings 10.1 to 10.4 there that serve to fasten the base plate 2 to a seat
trough (not
shown). Furthermore, longitudinal struts 11.1, 11.2 can also be recognized
that
represent a part of a sliding guide. The sliding guide is constructed in such
a manner
Date Recue/Date Received 2022-08-25

that the carrier plate 1 can be shifted to the base plate 2 in such a manner
that it cannot
be raised from the base plate 2. The longitudinal struts 11.1, 11.2 also
indicate the
contours of the base plate 2 as a demarcation to the carrier plate 1.
Different views of the features already shown and explained in the previous
figures
can be recognized again in the figures 4 and 5. A repetition will not be made.
Figure 6 shows another exemplary embodiment of a seat depth adjuster. Here, a
manual drive can be recognized instead of the electrical drive 3. The manual
drive
consists of a lever 12, an activation element 13 and a catch mechanism that is
not
shown in detail.
The user pulls the lever 12 away from the base plate 2, activating the catch
mechanism, that had locked the carrier plate 1 to the base plate 2 up to then.
The
lever 12 is spring-supported so that it snaps back when the user lets go of
the lever 12.
After the user has activated the lever 12 and the catch mechanism was
unlocked, he
pulls the carrier plate 1 with the aid of the activation element 13 away from
the base
plate 2. As soon as the user has reached the desired position he lets go of
lever 12 and
the catch mechanism firmly holds the carrier plate 1 in the desired position
to the base
plate.
Furtheimore, figure 7 also shows screw elements 14.1 to 14.3 that are thrust
through
the openings 10.1 to 10.3. The screw elements 14.1 to 14.3 serve to locally
fix the
base plate 2 to a seat trough (not shown in detail).
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Date Regue/Date Received 2022-08-25

Refer regarding the remaining features to the description of the figures 1 to
5. In
particular, the explanations for features should be used if they have the same
reference
numbers.
It can be recognized especially well in figure 8 how the lever 12 is connected
to the
fastening element 13. Otherwise, refer to the above explanations.
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Date Regue/Date Received 2022-08-25

Representative Drawing