# US 8,540,316 B2 · Scissors-type frame for a vehicle seat and method for producing a substructure of a vehicle seat

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- Number: US 8,540,316 B2
- Document ID: US8540316B2
- Status: Granted
- Kind: B2
- Application number: 12/614,241
- Filed: 2009-11-06
- Published: 2010-05-13
- Granted: 2013-09-24
- Earliest claimed: 2008-11-06
- Assignees: Grammer AG
- Applicants: Johann Deml; Erich Dieling; Josef Kohl; Alexander Lorey; Manfred Renner
- Inventors: Johann Deml; Erich Dieling; Josef Kohl; Alexander Lorey; Manfred Renner
- Web page: https://patentgrep.com/patent/US8540316B2

## CPC

- B60N 2/68: Seat frames
- B60N 2/162: {Scissors-like structure}
- B60N 2/502: {attached to the base of the seat (B60N2/504 takes precedence)}
- B60N 2/505: {Adjustable suspension including height adjustment}
- B60N 2/508: {Scissors-like structure}
- Y10T 29/49826: Assembling or joining
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

To be able to produce a scissors-type frame of a vehicle seat in a quick and easy manner, the present invention is directed to a scissors-type frame for a vehicle seat, in particular for a motor vehicle seat, comprising a first scissors element and a second scissors element, wherein the scissors-type frame is height-adjustable by means of the two scissors elements, and wherein the scissors-type frame is characterized in that one of the two scissors elements passes through the other of the two scissors elements.

## Claims

### Claim 1

A scissors-type frame for a vehicle seat, comprising
first and second scissors elements, wherein at least one of the first and second scissors elements passes through the other scissors element and the first and second scissors elements are configured to adjust the height of the scissors-type frame; and
a spring support arranged in a roll-off manner at one end of at least one of the first or second scissors elements, wherein the spring support comprises a notch into which at least one of the first or second scissors elements protrudes with a tab.

### Claim 2 (depends on 1)

The scissors-type frame according to claim 1, wherein the first scissors element is arranged within a peripherally closed material cutout of the second scissors element.

### Claim 3 (depends on 1)

The scissors-type frame according to claim 1, wherein the first scissors element encompasses the second scissors element.

### Claim 4 (depends on 1)

The scissors-type frame according to claim 1, wherein the first and second scissors elements are rotatably mounted about a common bearing axle.

### Claim 5 (depends on 1)

The scissors-type frame according to claim 1, wherein at least one of the first and second scissors elements is made by forming from a semi-finished product.

### Claim 6 (depends on 5)

The scissors-type frame according to claim 5, wherein the first and second scissors elements are made by forming from a semi-finished product.

### Claim 7 (depends on 6)

The scissors-type frame according to claim 6, wherein the first and second scissors elements are formed by at least one of a one-piece punched sheet metal or by bending.

### Claim 8 (depends on 1)

The scissors-type frame according to claim 1, wherein at least one of the first and second scissors elements is formed by at least one of a one-piece punched sheet metal or by bending.

### Claim 9 (depends on 1)

The scissors-type frame according to claim 1, wherein at least one of the first and second scissors elements has a through-opening configured to receive a damper.

### Claim 10 (depends on 1)

The scissor-type frame according to claim 1, wherein the second scissor element is arranged within the first scissor element and further comprising a damper configured to pass through at least one of the first and second scissors elements while the second scissor element is arranged within the first scissor element.

### Claim 11 (depends on 1)

The scissor-type frame according to claim 1, further comprising a seat and a base, wherein:
the seat is integrally mounted to the first scissors element in a rotational manner by means of a rotary bearing and the base is integrally mounted to the first scissors element in a translational manner by means of a sliding bearing; and
the seat is integrally mounted to the second scissors element in a transitional manner by means of a sliding bearing and the base is integrally mounted to the second scissors element in a rotational manner by means of a rotary bearing.

### Claim 12 (depends on 11)

The scissor-type frame according to claim 11, further comprising a damper mounted on at least one of the seat or the base rotary bearings.

### Claim 13 (depends on 12)

The scissor-type frame according to claim 12, wherein the damper is mounted on the base rotary bearing.

### Claim 14 (depends on 1)

The scissors-type frame according to claim 1, wherein at least one of the first or second scissor elements comprises at least one bearing eye, further comprising at least one bearing eye formed within at least one of a seat or a base integrally mounted to the at least one of the first or second scissor elements, wherein the bearing eyes are configured to move at least one of the first or second scissors elements with respect to at least one of the seat or the base.

### Claim 15 (depends on 14)

The scissors-type frame according to claim 14, wherein the bearing eyes are formed in one piece with at least one of the first and second scissors elements or at least one of the seat or the base.

### Claim 16 (depends on 1)

The scissors-type frame according to claim 1, wherein at least one of the first or second scissor elements comprises at least one bearing pin, wherein the at least one bearing pin is configured to allow at least one of the first or second scissor elements to move with respect to at least one of a seat or a base.

### Claim 17 (depends on 16)

The scissors-type frame according to claim 16, wherein the at least one bearing pin is formed in one piece with at least one of the first or second scissors elements.

### Claim 18 (depends on 16)

The scissor-type frame according to claim 16, wherein the bearing pin comprises a sliding element.

### Claim 19 (depends on 18)

The scissor-type frame according to claim 18, wherein the sliding element is pushed onto the bearing pin.

### Claim 20 (depends on 18)

The scissors-type frame according to claims 18, wherein the sliding element is made from plastic.

### Claim 21 (depends on 16)

The scissors-type frame according to claim 16, wherein at least one of the seat or the base comprises a guide configured to receive the bearing pin.

### Claim 22 (depends on 21)

The scissors-type frame according to claim 21, wherein the guide is a material cutout in the at least one of the seat or the base.

### Claim 23 (depends on 1)

The scissor-type frame according to claim 1, further comprising:
at least one bearing pin associated with at least one of the first or second scissor elements; and
a seat and a base, wherein at least one of the seat or the base has a guide configured to receive the at least one bearing pin;
wherein the at least one bearing pin is slidably mounted in the guide.

### Claim 24 (depends on 1)

The scissors-type frame according to claim 1, further comprising:
a first connector formed from at least one of the first or second scissors element; and
a second connector formed from at least one of a seat or a base;
wherein the second connector is configured to receive the first connector.

### Claim 25 (depends on 24)

The scissor-type frame according to claim 24, wherein the first connector is guided within the second connector.

### Claim 26 (depends on 1)

The scissor-type frame according to claim 1, further comprising:
a spring assembly having at least one spring; and
at least one of a seat or a base;
wherein the at least one spring is arranged between at least one of the first or second scissors elements and at least one of the seat or the base.

### Claim 27 (depends on 1)

The scissor-type frame according to claim 1, wherein the spring support comprises a bent base body that is bent about one of its longitudinal axes.

### Claim 28 (depends on 1)

The scissors-type frame according to claim 1, wherein the spring support comprises at least one spring end holder configured to connect the spring support to a spring end of the at least one of the first and second spring elements.

### Claim 29

A substructure for a motor vehicle seat, comprising:
a scissors-type frame having first and second scissors elements, wherein the first scissors element passes through the second scissors element and the first and second scissors elements are configured to adjust the height of the scissors-type frame;
a seat;
a base; and
a spring support arranged in a roll-off manner at one end of at least one of the first or second scissors elements, wherein the spring support comprises a notch into which at least one of the first or second scissors elements protrudes with a tab,
wherein at least one of the first and second scissors elements is mounted to the seat in a rotational manner by means of a rotary bearing and mounted to the base in a translational manner by means of a sliding bearing and at least one of the first and second scissors elements is mounted to the base in a rotational manner by means of a rotary bearing and mounted to the seat in a translational manner by means of a sliding bearing.

### Claim 30 (depends on 29)

The substructure for a motor vehicle seat according to claim 29, further comprising a damper mounted on at least one of the seat or the base rotary bearings.
