# US 11,305,494 B2 · Manufacturing method of assembly

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- Number: US 11,305,494 B2
- Document ID: US11305494B2
- Status: Granted
- Kind: B2
- Application number: 16/808,870
- Filed: 2020-03-04
- Published: 2020-10-08
- Granted: 2022-04-19
- Earliest claimed: 2019-04-03
- Assignees: Futaba Industrial Co., Ltd.
- Applicants: Futaba Industrial Co., Ltd.
- Inventors: Keigo Yasuda
- Web page: https://patentgrep.com/patent/US11305494B2

## CPC

- B29C 65/48: using adhesives {, i.e. using supplementary joining material; solvent bonding}
- B62D 27/026: {Connections by glue bonding (in general F16B11/00; processes C09J5/00)}
- B29C 65/10: using hot gases {(e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined}
- B29C 65/18: using heated tools
- B29C 65/26: Hot fluid
- B29C 65/4835: {Heat curing adhesives}
- B29C 66/1122: {Single lap to lap joints, i.e. overlap joints (B29C66/45, B29C66/472, B29C66/52272 take precedence)}
- B29C 66/3474: {perpendicular to the plane of the joint}
- B29C 66/5324: {said single elements being substantially annular, i.e. of finite length (B29C66/5326 takes precedence)}
- B29C 66/534: {Joining single elements to open ends of tubular or hollow articles or to the ends of bars}
- B29C 66/612: {Making circumferential joints}
- B29C 66/634: {using an inflatable core}
- B29C 66/7212: {characterised by the composition of the fibres}
- B29C 66/73112: {of different thermal expansion coefficient, i.e. the thermal expansion coefficient of one of the parts to be joined being different from the thermal expansion coefficient of the other part}
- B29C 66/742: {to metals or their alloys}
- B29C 66/7422: {Aluminium or alloys of aluminium}
- B29C 66/861: {Hand-held tools}
- B62D 29/005: {preformed metal and synthetic material elements being joined together, e.g. by adhesives}
- F16L 3/127: and extending away from the attachment surface
- B29C 65/542: {by injection}
- B29C 66/721: {Fibre-reinforced materials (B29C66/729 takes precedence)}
- B29C 66/919: {characterised by specific temperature, heat or thermal flux values or ranges (specific electrical resistance values B29C66/81262)}
- B29C 66/949: {characterised by specific time values or ranges}
- B29K 2307/04: Carbon
- B29L 2023/22: {Tubes or pipes, i.e. rigid (bent tubes not for use as pipe couplings B29L2023/004)}
- B29L 2031/3008: {Instrument panels}
- B62D 25/00: Superstructure {or monocoque structure} sub-units; Parts or details thereof not otherwise provided for {(having impact absorbing means B62D21/15; running-boards, steps, or the like as superstructure sub-unit B60R3/00)}
- 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)
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- 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

In a manufacturing method of an assembly, the assembly including a metal part and a pipe, the pipe including a material containing a resin, an adhesive is first adhered to an outer circumferential surface of the pipe and a metal part covering at least a portion of an outer circumferential surface of the pipe. Here, an area to which the adhesive is adhered on the outer circumferential surface of the pipe is defined as an adhesion area. Next, by a heat source provided inside the pipe, a target area is heated without interposing the metal part. The target area is located radially interior to the adhesion area and located on an inner circumferential surface of the pipe.

## Claims

### Claim 1

A manufacturing method of an assembly, the assembly including a pipe and a metal part, the pipe including a material containing a resin, comprising:
adhering an adhesive to an outer circumferential surface of the pipe and an inner circumferential surface of the metal part covering at least a portion of the outer circumferential surface of the pipe; and
heating a target area by a heat source provided in the pipe without interposing the metal part, the target area being located radially interior to an adhesion area and located on an inner circumferential surface of the pipe, the adhesion area being an area to which the adhesive is adhered on the outer circumferential surface of the pipe,
wherein the metal part is configured for use as a bracket connected to an other part that is distinct from the pipe and the metal part, and
wherein the inner circumferential surface of the metal part registered with the adhesive area is devoid of a hole or cut-out formed in a radial direction for receiving a fastener for fastening the metal part to the pipe.

### Claim 2 (depends on 1)

The manufacturing method of the assembly according to claim 1,
wherein the resin is a carbon fiber reinforced plastic.

### Claim 3 (depends on 1)

The manufacturing method of the assembly according to claim 1,
wherein the metal part surrounds the outer circumferential surface of the pipe.

### Claim 4 (depends on 1)

The manufacturing method of the assembly according to claim 1,
wherein the metal part includes a through hole penetrating the metal part in a direction parallel to an extending direction of the pipe, and the pipe is inserted into the through hole.

### Claim 5 (depends on 1)

The manufacturing method of the assembly according to claim 1,
wherein a thermal expansion coefficient of the metal part is larger than a thermal expansion coefficient of the pipe.

### Claim 6 (depends on 1)

The manufacturing method of the assembly according to claim 1,
wherein the metal part is composed of aluminum.

### Claim 7 (depends on 1)

The manufacturing method of the assembly according to claim 1,
wherein the metal part is arranged on an end of the pipe.

### Claim 8 (depends on 1)

The manufacturing method of the assembly according to claim 1,
wherein the heat source comprises a heated gas flowing into an inside of the pipe.

### Claim 9 (depends on 1)

The manufacturing method of the assembly according to claim 1,
wherein the heat source is configured to be expanded by high-temperature air injected into the heat source,
wherein a heating of the target area is performed by
injecting the high-temperature air into the heat source provided in the pipe to expand the heat source, and
pressurizing the target area by the heat source that is expanded, the target area being located radially interior to the adhesion area and located on the inner circumferential surface of the pipe.

### Claim 10 (depends on 1)

The manufacturing method of the assembly according to claim 1, wherein the assembly is included into a body structure of an automobile.