DE102012108271B4 - Device for guiding a seat depth adjustment and a method for producing a seat depth adjustment and use of a device - Google Patents

Abstract

Device for guiding a seat depth adjustment, the seat depth adjustment having a carrier plate and a base plate, the carrier plate being displaceable by the guide relative to the base plate, characterized by a first spring bow (1) which is designed as part of a circumferential base element (3) and a second spring bow (2) which is arranged at right angles to the first spring bow (1), wherein the base element (3) can be inserted into the guide of the seat depth adjustment and has a loss protection (4) in the form of a flexible ramp (5.1, 5.2), which is present at each transition (6.1, 6.2) of the first spring arch (1) to the rest of the base element (3), the ramp (5.1, 5.2) spreading away from the base element (3) towards the second spring arch (2) .

Description

The invention relates to a device according to the preamble of claim 1, as well as a method for production according to the independent claim 3 and a use according to claim 4.

STATE OF THE ART

Various types of seat depth adjustments are known from the prior art. As a rule, all seat depth adjustments work through a two-part system. The seat depth adjustment consists of a support plate on which part of the seat surface is mounted and a base plate which connects the support plate with the rest of the seat.

The carrier plate and the base plate have common guides which enable the carrier plate to be displaced relative to the base plate. This disadvantageously results in play between the base plate and the carrier plate. This results from manufacturing tolerances and the fundamental problem that play arises in the case of parts that are movably arranged in relation to one another.

In this context, the DE 10 2009 012 780 B3 to name, wherein a seat depth adjustment with a guide plate, a guided in the guide plate support plate for receiving a seat, and a spring is described, which biases the support plate against the guide plate, wherein a channel is provided in which the spring is received and where the Channel is designed so that only axial insertion of the spring into the fixed channel is possible.

Furthermore, the U.S. 3,545,716 A to call. Disclosed herein is a rail structure for a vehicle seat recliner mechanism having opposing and relatively slidable upper and lower channel members. The channel elements are provided with laterally extending areas which are locked to one another and between which storage facilities are arranged. Spring means, which have the shape of a cylindrical roller, are used to continuously press the channel elements apart in order to preload the bearing means and to compensate for wear and / or manufacturing defects.

In the FR 2 606 339 A1 we also disclose a sliding device for equipping a motor vehicle seat with a sliding device.

In the EP 0 685 358 A1 is a play-free longitudinal guide made of nested rails from a lower rail and an upper rail displaceable against this for use for seat attachment in vehicles, such as passenger cars.

Finally there is that DE 31 06 735 A1 to call. A clamping device for the clamping connection of a round rod with a component that encompasses the rod like a fork is disclosed here.

OBJECT OF THE INVENTION

The object of the invention is to provide a device which eliminates the play between the base plate and the carrier plate of a seat depth adjustment and can be implemented easily and inexpensively during the manufacturing process.

SOLUTION OF THE TASK

The device with the features of claim 1, as well as the method with the features of claim 3 and the use according to claim 4 lead to the solution of the object.

A device according to the invention is used to introduce a seat depth adjustment into a guide. The seat depth adjustment consists of a carrier plate and a base plate. The support plate is used to decouple part of the seat from the remaining part of the seat and to move it. The carrier plate here has the part of the seat surface to be uncoupled, which, for example, can be pushed into the hollow of the knee of the occupant if necessary in order to achieve a more comfortable sitting position and to enable more relaxed travel. The base plate represents the connection between the support plate and the rest of the seat area. In a device according to the invention, the support plate is arranged to be displaceable relative to the base plate. The displaceability is achieved by at least one, preferably two guides. The form and design of the tour is irrelevant in this respect. T-guides, for example, are regularly found here, which interlock, for example, and enable the carrier plate to be displaced linearly relative to the base plate.

The device according to the invention is clipped into the guide for the seat depth adjustment. The device according to the invention has a first spring bow which is designed as part of a circumferential base element. The shape and design of the basic element is aligned with the recess provided by the user in the carrier plate. In a preferred embodiment, the basic element is round. But it is also conceivable that the base element has a different shape.

Furthermore, a second spring bow, which runs essentially at right angles to the first spring bow, is arranged on the device according to the invention next to the first spring bow. As a result of the essentially right-angled arrangement of the second spring arch to the first spring arch, it is advantageously possible for the carrier plate to be spring-mounted relative to the base plate without play. Two spring arches arranged at right angles to one another ensure that, for example, in the case of a base element designed as a corner profile, secure play-free mounting is guaranteed. In every position of the structural unit, regardless of whether it is retracted or extended, the first spring bow and the second spring bow ensure that it is pushed out, which ultimately prevents the development of noise when the carrier plate moves relative to the base plate.

In a preferred exemplary embodiment, the basic element is designed in such a way that a certain area of the basic element acts as a spring arch. The basic element is inserted into the guide for the seat depth adjustment. For this purpose, a recess is provided in the carrier plate, for example, into which the base element together with the first spring arch can be clipped. The shape of the recess in the carrier plate is less important in this respect. The fact that the base element including the first spring bow can be inserted into the seat depth adjustment, in particular into the support plate, has the advantage that, for example, when producing a seat depth adjustment, it is easier to insert the device according to the invention into the guides already provided.

Another exemplary embodiment of the device according to the invention is designed in such a way that a loss safeguard is provided at each transition from the first spring arch to the remaining base element. All designs that ensure that the basic element introduced into the recess can no longer fall out of the carrier plate can be considered as loss protection. A double-sided adhesive tape construction or an adhesive could be conceivable here, for example, which would ensure that the base element cannot fall out of the carrier plate until the carrier plate has been connected to the base plate. The interaction of the carrier plate and the base plate would then ensure that the basic element cannot fall out.

In a particularly preferred embodiment of the loss protection, there is a loss protection at each transition from the first spring arch to the rest of the base element. The loss protection is designed as a resilient ramp which spreads away from the base element towards the second spring arch. It is made of a flexible material, such as plastic, so that, for example, it can interact with a corresponding recess in the carrier plate. For example, the base element with the flexible ramp can be clipped into the recess of the carrier plate in such a way that the ramp is introduced into the recess with the rising end first and then at a defined position that the end of the ramp, formed as a splayed edge, is inserted into the recess provided snaps into the carrier plate and the end formed as a corner can no longer be removed from the carrier plate. The end of the ramp designed as a corner acts like a locking mechanism.

A method according to the invention for producing a seat depth adjustment with a device according to the invention is provided in such a way that the base element is introduced into the guide of the carrier plate in such a way that it is no longer possible to fall out due to the loss protection. The carrier plate is then connected to the base plate. In detail, this means that the guide rails of the carrier plate or the base plate interlock in order to be able to perform a linear movement relative to one another. The base element is embedded in the carrier plate in such a way that the first spring arch and the second spring arch press against the base plate and thus leave no more room for play.

A use according to the invention of the device is provided in passenger vehicles, trucks, airplanes or ships. Everywhere there, a seat depth adjustment can be installed, which consists of a base plate and a carrier plate.

Figure list

• 1 eine schematische Seitenansicht der erfindungsgemäßen Vorrichtung;
• 2 eine schematische Ansicht der erfindungsgemäßen Vorrichtung nach 1 von schräg oben; und
• 3 eine Seitenansicht der erfindungsgemäßen Vorrichtung nach den 1 und 2.

Further advantages, features and details of the invention emerge from the following description of the figures. These show in detail in

• 1 a schematic side view of the device according to the invention;
• 2 a schematic view of the device according to the invention 1 from diagonally above; and
• 3 a side view of the device according to the invention according to the 1 and 2 .

In 1 a device V according to the invention is shown. The device V according to the invention consists of a basic element 3 , where the primitive 3 partly a first feather bow 1 includes. It is also at right angles to the first spring arch 1 a second feather bow 2 to recognize. There is also a loss protection 4th in the form of a ramp 5.1 to recognize the ramp 5.1 at a transition 6.1 of the first bow 1 to the remaining basic element 3 is trained. The transition 6.1 forms an end face in the exemplary embodiment shown here.

In every position of the unit, regardless of whether it is retracted or extended, ensure the first spring bow 1 and the second feather bow 2 pushing out from the primitive 3 away, which ultimately prevents the development of noise during the relative movement of a carrier plate to a base plate.

In 2 will take a different perspective of the view 1 shown. Features that have the same item number are not separately detailed again. The remarks on 1 also apply in this context to the 2 . In 2 can also be seen, however, like another ramp 5.2 as protection against loss on the other end of the spring bow 2 is trained. The ramp 5.2 is at a transition 6.2 of the first bow 1 to the remaining basic element 3 formed, with the ramps 5.1 , 5.2 towards the second feather bow 2 from the primitive 3 splay off. This is also in 2 easy to recognize again.

3 now shows another view of the 1 and 2 . In the 3 are in addition to the features already mentioned, on their explanations on the explanations of the 1 and 2 referenced, two power arrows 7th and 8th to recognize. The power arrows 7th is on the first feather bow 1 appropriate. The power arrow 8th is on the second spring bow 2 marked. The power arrows 7th , 8th should show in which direction the first spring bow 1 and the second feather bow 2 Act.

List of reference symbols

1

first feather bow

2

second spring bow

3

Basic element

4th

Loss protection

5.1, 5.2

ramp

6.1, 6.2

crossing

7th

Power arrow

8th

Power arrow

V

contraption

Claims (4)

Device for guiding a seat depth adjustment, the seat depth adjustment having a carrier plate and a base plate, the carrier plate being displaceable by the guide relative to the base plate, characterized by a first spring bow (1) which is designed as part of a circumferential base element (3) and a second spring bow (2) which is arranged at right angles to the first spring bow (1), wherein the base element (3) can be inserted into the guide of the seat depth adjustment and has a loss protection (4) in the form of a flexible ramp (5.1, 5.2), which is present at each transition (6.1, 6.2) of the first spring arch (1) to the rest of the base element (3), the ramp (5.1, 5.2) spreading away from the base element (3) towards the second spring arch (2) . Device according to Claim 1 , characterized in that the first spring bow (1) and the second spring bow (2) have a spring-away property from the base element (3), suitable to prevent the development of noise during the relative movement of the carrier plate to the base plate. Method for producing a seat depth adjustment with a device according to the Claims 1 and 2 , characterized by the following steps: - the base element (3) is introduced into a recess in the carrier plate and connected so that the first spring bow (1) can come into operative connection with the guide of the base plate, - the carrier plate is connected to the base plate in such a way that the first spring bow (1) and the second spring bow (2) press against the base plate. Use of a device according to the Claims 1 and 2 in passenger vehicles, trucks, airplanes or ships.

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