# US 10,864,571 B2 · Spring setting device, apparatus for forming a string of pocket springs, and method of setting springs

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- Number: US 10,864,571 B2
- Document ID: US10864571B2
- Status: Granted
- Kind: B2
- Application number: 16/073,547
- Filed: 2017-01-26
- Published: 2018-11-22
- Granted: 2020-12-15
- Earliest claimed: 2016-02-02
- Assignees: Spuhl AG
- Applicants: Spuhl GmbH
- Inventors: Christopher Hug
- Web page: https://patentgrep.com/patent/US10864571B2

## CPC

- B21F 33/04: Connecting ends of helical springs for mattresses
- B68G 9/00: Placing upholstery springs in pockets; Fitting springs in upholstery
- B68G 15/00: Auxiliary devices and tools specially for upholstery
- B65G 15/08: the load-carrying surface being formed by a concave or tubular belt, e.g. a belt forming a trough
- B65G 47/22: Devices influencing the relative position or the attitude of articles during transit by conveyors (during feeding B65G47/14)
- B21F: WORKING OR PROCESSING OF METAL WIRE (rolling of metal wire B21B1/16; by drawing, auxiliary operations used in connection with metal-working without essentially removing material B21C)
- B68G: METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
- B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D)

## Abstract

A spring setting device (30) comprises a setting guide (31; 40) configured to receive a spring, an abutment member (32; 50) positioned adjacent to the setting guide (31; 40) and configured to abuttingly engage the spring, and a pusher (35; 71) which is configured to displace the spring along the setting guide (31; 40) and to compress the spring against the abutment member (32; 50). The abutment member (32; 50) may be rotatably mounted.

## Claims

### Claim 1

A spring setting device, comprising:
a setting guide configured to receive a spring;
an abutment member positioned adjacent to the setting guide and configured to abuttingly engage the spring, the abutment member being rotatably mounted; and
a pusher which is configured to displace the spring along the setting guide and to compress the spring against the abutment member;
wherein the pusher is attached to an endless conveyor, the abutment member extends in a plane, the spring setting device is configured to move the pusher across the plane in which the abutment member extends, and the abutment member comprises at least one recess dimensioned to allow the pusher to pass therethrough.

### Claim 2 (depends on 1)

The spring setting device of claim 1, wherein the spring setting device is configured such that a direction of rotation of the endless conveyor remains unchanged during operation of the spring setting device.

### Claim 3 (depends on 1)

The spring setting device of claim 1, wherein at least one further pusher is attached to the endless conveyor.

### Claim 4 (depends on 1)

The spring setting device of claim 1, wherein the abutment member is configured to effect a displacement of a set spring, the displacement effected by the abutment member being directed transversely to a longitudinal axis of the setting guide.

### Claim 5 (depends on 4)

The spring setting device of claim 4, wherein the spring setting device is configured such that the pusher is maintained stationary while the abutment member effects the displacement of the spring.

### Claim 6 (depends on 1)

The spring setting device of claim 1, further comprising:
a control device configured to control a movement of the pusher and of the abutment member in a coordinated manner.

### Claim 7 (depends on 1)

An apparatus for forming a string of pocket springs, comprising:
a spring former configured to form a spring;
a spring setting device of claim 1 configured to set the spring; and
a pocketing device configured to enclose the set spring in an associated pocket.

### Claim 8 (depends on 7)

The apparatus of claim 7, further comprising:
a partition, wherein the spring former is mounted on a first side relative to the partition,
the pocketing device is mounted on a second side relative to the partition, the second side being opposite to the first side, and
the setting guide of the spring setting device extends from the first side to the second side.

### Claim 9

A method of setting a spring, the method comprising:
displacing, by a pusher, the spring along a setting guide, wherein the pusher is attached to an endless conveyor; and
compressing, by the pusher, the spring on an abutment member which is rotatably mounted and positioned adjacent the setting guide, the abutment member abuttingly engaging the spring and using the pusher to push the spring through at least one recess of the abutment member, the recess being dimensioned to allow the pusher to pass the spring therethrough.

### Claim 10 (depends on 1, 9)

The method of claim 9, which is performed by the spring setting device of claim 1.

### Claim 11 (depends on 7, 9)

The method of claim 9, which is performed by the apparatus of claim 7.

### Claim 12

A spring setting device, comprising:
a setting guide configured to receive a spring;
an abutment member positioned adjacent to the setting guide and configured to abuttingly engage the spring, the abutment member being movably mounted; and
a pusher which is configured to displace the spring along the setting guide and to compress the spring against the abutment member,
wherein the abutment member extends in a plane, the spring setting device is configured to move the pusher across the plane in which the abutment member extends, and the abutment member comprises at least one recess dimensioned to allow the pusher to pass therethrough.
