# US 10,864,683 B2 · Thermal caulking method, thermal caulking device, and caulked material

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- Number: US 10,864,683 B2
- Document ID: US10864683B2
- Status: Granted
- Kind: B2
- Application number: 15/760,415
- Filed: 2016-09-16
- Published: 2019-03-21
- Granted: 2020-12-15
- Earliest claimed: 2015-09-18
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Yoshinori Tsurugai; Hiroshi Ishikawa; Shigeto Akahori
- Web page: https://patentgrep.com/patent/US10864683B2

## CPC

- B29C 65/606: {the rivets being integral with one of the parts to be joined, i.e. staking}
- B29C 65/18: using heated tools
- B29C 65/224: {being a resistive ribbon, a resistive band or a resistive strip}
- B29C 65/226: {characterised by the cross-section of said heated wire, resistive ribbon, resistive band or resistive strip, e.g. being triangular}
- B29C 65/228: {characterised by the means for electrically connecting the ends of said heated wire, resistive ribbon, resistive band or resistive strip}
- B29C 65/30: Electrical means {(B29C65/38 takes precedence)}
- B29C 66/322: {Providing cavities in the joined article to collect the burr}
- B29C 66/3242: {on the inside of a tubular or hollow article}
- B29C 66/532: {Joining single elements to the wall of tubular articles, hollow articles or bars}
- B29C 66/545: {one hollow-preform being placed inside the other}
- B29C 66/612: {Making circumferential joints}
- B29C 66/73921: {characterised by the materials of both parts being thermoplastics}
- B29C 66/81422: {being convex}
- B29C 66/8322: {Joining or pressing tools reciprocating along one axis}
- B29C 66/843: {Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series}
- F01D 5/34: Rotor-blade aggregates of unitary construction {, e.g. formed of sheet laminae; (discs formed of sheet laminae F01D5/028; ceramic materials F01D5/284, composite materials F01D5/282)}
- F01D 9/02: Nozzles; Nozzle boxes; Stator blades; Guide conduits {, e.g. individual nozzles (nozzle boxes F01D9/047)}
- F04D 29/023: {especially adapted for elastic fluid pumps}
- F04D 29/322: {Blade mountings}
- F04D 29/388: {characterised by construction}
- B29C 66/71: {characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125)}
- B29C 66/81415: {being bevelled}
- B29L 2031/08: Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- F05D 2220/36: specially adapted for the fan of turbofan engines
- F05D 2230/23: by permanently joining parts together
- F05D 2230/232: by welding
- F05D 2230/237: Brazing
- F05D 2230/60: Assembly methods
- F05D 2240/12: Fluid guiding means, e.g. vanes
- F05D 2250/232: conical
- F05D 2300/43: Synthetic polymers, e.g. plastics; Rubber
- 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)
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

## Abstract

Provided is a thermal caulking method of melting, at one time, a plurality of bosses 33 of a second member 30 protruding toward an inner circumferential surface of a conical hollow portion 11 of a first member 10 while being fitted to a plurality of holes 132 provided in the inner circumferential surface of the hollow portion 11 of the first member 10 having the substantially conical hollow portion 11 so that the plurality of bosses are joined to the first member 10, in which the plurality of bosses 33 are melted at one time by using a heat chip 51 having a continuous shape in the circumferential direction of the hollow portion 11 along the inner circumferential surface and are joined to the first member 10 while the adjacent melted bosses 33 are connected to each other.

## Claims

### Claim 1

A thermal caulking method comprising melting, at one time, a plurality of bosses of a second member protruding toward an inner circumferential surface of a conical hollow portion of a first member while being fitted to a plurality of holes provided in the inner circumferential surface of the hollow portion of the first member having the substantially conical hollow portion so that the plurality of bosses are joined to the first member,
wherein the plurality of bosses are melted at one time by using a heating portion having a continuous conical shape in a circumferential direction of the hollow portion along the inner circumferential surface and are joined to the first member while the melted adjacent bosses are connected to each other.

### Claim 2

A caulked material comprising:
a first member having a substantially conical hollow portion; and
a plurality of bosses of a second member protruding toward an inner circumferential surface of the hollow portion of the first member while being fitted to a plurality of holes provided in the inner circumferential surface of the hollow portion of the first member and melted at one time to be joined to the first member,
wherein melted portions formed by melting the plurality of bosses are connected to each other.

### Claim 3 (depends on 2)

The caulked material according to claim 2,
wherein a partition wall for stopping the melted portion is formed at a portion of the first member corresponding to a lower end portion of the melted portion of the inner circumferential surface of the hollow portion of the first member before the second member is joined to the first member.

### Claim 4 (depends on 2)

The caulked material according to claim 2,
wherein the first member is formed by a main plate,
wherein the second member is formed by a plurality of blade members, and
wherein the caulked material is an impeller including the first member and the second member.