# US 9,039,856 B2 · Method for gluing a friction lining, and tool

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- Number: US 9,039,856 B2
- Document ID: US9039856B2
- Status: Granted
- Kind: B2
- Application number: 13/721,438
- Filed: 2012-12-20
- Published: 2013-05-16
- Granted: 2015-05-26
- Earliest claimed: 2010-06-24
- Assignees: Schaeffler Technologies AG & Co. KG
- Applicants: Schaeffler Technologies AG & Co. KG
- Inventors: Jens Ludes; Elmar Stein; Ralf Deiters; Ralph Kolling
- Web page: https://patentgrep.com/patent/US9039856B2

## CPC

- B29C 65/64: Joining a non-plastics element to a plastics element, e.g. by force (B29C65/44 takes precedence)
- B29C 43/18: incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles {(B29C43/206 takes precedence)}
- F16D 69/04: Attachment of linings
- B29C 33/0088: {Multi-face stack moulds}
- B29C 2043/185: {using adhesives}
- B29K 2705/00: Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29L 2031/16: Frictional elements, e.g. brake or clutch linings
- F16D 2069/0466: {chemical, e.g. using adhesives, vulcanising}
- F16D 2069/0491: {Tools, machines, processes}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

The invention relates to a method for gluing a friction lining to a support by means of adhesive that develops its full adhesive effect under the effect of pressure and/or temperature. The invention is characterized in that the friction lining and the support are pressed together along with the adhesive before the adhesive develops its full adhesive effect in order to glue the friction lining to the support.

## Claims

### Claim 1

A method for gluing a friction lining to a support, comprising:
applying an adhesive to at least one of the friction lining and the support, a full adhesive effect of the adhesive being developed under the influence of at least one of pressure and temperature; and
pressing the friction lining and the support together with the adhesive before the adhesive develops the full adhesive effect so that the friction lining is affixed to the support before the adhesive develops the full adhesive effect and forms a composite part including the friction lining and the support, wherein the friction lining is porous and the step of pressing causes the adhesive to flow such that the adhesive is distributed between the support and the friction lining and penetrates at least partially the porous friction lining,
wherein a plurality of composite parts, each including a friction lining glued to a respective support, are arranged in a stack without intervening elements and pressed together in the stack so that the adhesive develops the full adhesive effect when the stack of composite parts are pressed together,
wherein the step of pressing uses a tool having a first press plate, a second press plate, and at least one intermediate plate, and the step of pressing comprises the substeps of: placing a first stack comprising a first plurality of composite parts without intervening elements between the first press plate and the at least one intermediate plate; placing a second stack comprising a second plurality of composite parts without intervening elements between the second press plate and the at least one intermediate plate; and simultaneously pressing the first stack and the second stack between the first and second press plates, and
wherein the tool includes a central threaded rod extending through the first press plate, the first stack, the at least one intermediate plate, the second stack, and the second press plate, and wherein the step of simultaneously pressing comprises tightening only a nut on the central threaded rod with a disk spring assembly and a bearing arranged between the nut and the second press plate.

### Claim 2 (depends on 1)

The method of claim 1, further comprising the step of positioning or centering the friction lining and the support relative to each other before the step of pressing.

### Claim 3 (depends on 1)

The method of claim 1, wherein the first and second stacks are pressed together by a force of approximately three tons and the tool is exposed to a temperature of approximately 205 degrees Celsius to cure or crosslink the adhesive.

### Claim 4 (depends on 1)

The method of claim 1, wherein the bearing is an axial deep groove ball bearing.
