# US 10,369,749 B2 · Thermal caulking device

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- Number: US 10,369,749 B2
- Document ID: US10369749B2
- Status: Granted
- Kind: B2
- Application number: 16/033,863
- Filed: 2018-07-12
- Published: 2019-01-24
- Granted: 2019-08-06
- Earliest claimed: 2017-07-21
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Yoshinori Tsurugai; Hiroshi Ishikawa; Yuichi Tajiri; Shigeto Akahori; Naohiro Ohtsu; Satoshi Shiozaki
- Web page: https://patentgrep.com/patent/US10369749B2

## CPC

- B29C 65/30: Electrical means {(B29C65/38 takes precedence)}
- 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 65/606: {the rivets being integral with one of the parts to be joined, i.e. staking}
- 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 66/543: {joining more than two hollow-preforms to form said hollow articles}
- 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 66/8322: {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}
- F04D 17/025: {comprising axial flow and radial flow stages}
- F04D 29/023: {especially adapted for elastic fluid pumps}
- F04D 29/388: {characterised by construction}
- B29C 65/72: by combined operations {or combined techniques}, e.g. welding and stitching
- B29C 66/301: {Three-dimensional joints, i.e. the joined area being substantially non-flat (B29C66/5223, B29C66/5224, B29C66/5225 take precedence)}
- B29C 66/30321: {making use of protrusions belonging to at least one of the parts to be joined}
- 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}
- B29C 66/81425: {being stepped, e.g. comprising a shoulder}
- B29K 2623/12: {PP, i.e. polypropylene}
- B29L 2031/08: Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L 2031/748: {Machines or parts thereof not otherwise provided for (conveyor belts B29L2031/7092; driving belts B29L2031/7094; bearings B29L2031/04)}
- 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)
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)
- 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 first electrode section (7a) and the second electrode section (7b) are formed such that the outer portion connected to the upper portion of the heating section (6) is thinner than the inner portion connected to the lower portion of the heating section (6). The heating section (6) and the first electrode section (7a) are interconnected by an R-shaped first connecting portion (21). The inner circumferential sloping surface of the heating section (6) and the second electrode section (7b) are interconnected by an R-shaped second connecting portion (22). The first and second connecting portions (21)(22) are formed such that R becomes larger from the upper end to the lower end, where the upper portion is thin and the lower portion is thick. The thickness of an intermediate portion (6b) is smaller than the thicknesses of the first and second connecting portions (21)(22).

## Claims

### Claim 1

The A thermal caulking device which joins a first member to a second member by melting a boss of the second member being inserted into a through-hole formed in the first member and projecting inwardly from an inner circumferential surface of the first member, the first member having a cylindrical shape and a width gradually increasing from a bottom surface of the first member to an upper surface of the first member, the thermal caulking device comprising:
a heat tip having
a main body section whose outer circumferential surface is formed to extend along the inner circumferential surface of the first member and
two plate-like terminal sections extending radially from the main body section and connected to an inner circumferential surface of the main body section; and
a power supply unit arranged above the heat tip and configured to supply electricity to the main body section via the terminal sections,
wherein:
at least either of the main body section and the terminal sections has a non-uniform thickness in a predetermined direction, and
a thickness of a connecting portion interconnecting the main body section and each of the terminal sections on a narrow side which is a lower end portion of the main body section is larger than a thickness of a connecting portion interconnecting the main body section and each of the terminal sections on a wide side which is an upper end portion of the main body section.

### Claim 2

A thermal caulking device which joins a first member to a second member by melting a boss of the second member being inserted into a through-hole formed in the first member and projecting inwardly from an inner circumferential surface of the first member, the first member having a cylindrical shape and a width gradually increasing from a bottom surface of the first member to an upper surface of the first member, the thermal caulking device comprising:
a heat tip having
a main body section whose outer circumferential surface is formed to extend along the inner circumferential surface of the first member and
two plate-like terminal sections extending radially from the main body section and connected to an inner circumferential surface of the main body section; and
a power supply unit arranged above the heat tip and configured to supply electricity to the main body section via the terminal sections,
wherein:
at least either of the main body section and the terminal sections has a non-uniform thickness in a predetermined direction, and
a thickness of the main body section of a connecting portion side connected to each of the terminal sections is larger than a thickness of a remaining portion thereof except for the connecting portion side connected to each of the terminal sections.

### Claim 3

A thermal caulking device which joins a first member to a second member by melting a boss of the second member being inserted into a through-hole formed in the first member and projecting inwardly from an inner circumferential surface of the first member, the first member having a cylindrical shape and a width gradually increasing from a bottom surface of the first member to an upper surface of the first member, the thermal caulking device comprising:
a heat tip having
a main body section whose outer circumferential surface is formed to extend along the inner circumferential surface of the first member and
two plate-like terminal sections extending radially from the main body section and connected to an inner circumferential surface of the main body section; and
a power supply unit arranged above the heat tip and configured to supply electricity to the main body section via the terminal sections,
wherein:
at least either of the main body section and the terminal sections has a non-uniform thickness in a predetermined direction, and
a thickness of an outer portion of each of the terminal sections where each terminal section is connected to a wide side of the main body section, is smaller than a thickness of an inner portion of each of the terminal sections where each terminal section is connected to a narrow side of the main body section.