# US 11,994,159 B2 · Resin panel, structure, and method for manufacturing same

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- Number: US 11,994,159 B2
- Document ID: US11994159B2
- Status: Granted
- Kind: B2
- Application number: 17/289,881
- Filed: 2019-10-24
- Published: 2021-12-30
- Granted: 2024-05-28
- Earliest claimed: 2018-11-26
- Assignees: Kyoraku Co., Ltd.
- Applicants: Kyoraku Co., Ltd.
- Inventors: Kazuhiko Saeki; Sho Nakajima; Ryuichi Ishida
- Web page: https://patentgrep.com/patent/US11994159B2

## CPC

- F16B 5/04: by means of riveting (rivets F16B19/04)
- F16B 19/1054: {the pull-mandrel or the like being frangible}
- B21J 15/043: {by pulling a mandrel}
- B60R 5/04: arranged at rear of vehicle {(B60R5/003, B60R5/006 take precedence; external trunks arranged at rear of vehicle B60R9/065)}
- F16B 19/10: fastened by expanding mechanically
- B60R 13/011: {for internal load compartments, e.g. car trunks}
- Y10T 29/49943: Riveting
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- B21J: FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES (rolling of metal B21B; making particular products by forging or pressing B21K; cladding or plating B23K; finishing surfaces by hammering B23P9/04; compacting surfaces by blasting with particulate material B24C1/10; general features of presses, presses for consolidating scrap B30B; furnaces in general F27)
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An objective of the present invention is to attach an attached member to a resin panel with less man-hours. According to the present invention, provided is a manufacturing method of a resin panel including an attaching step. In the attaching step, an attached member is attached to a surface of a resin molded body by arranging a rivet body provided on a blind rivet in a concave portion formed on the surface, tearing a part of the rivet body to enlarge a diameter of the part of the rivet body, and allowing the part of the rivet body to penetrate a wall surface of the concave portion.

## Claims

### Claim 1

A manufacturing method of a resin panel, comprising:
an attaching step,
wherein, in the attaching step, an attached member is attached to a surface of a resin molded body by arranging a rivet body provided on a blind rivet in a concave portion formed on the surface, the concave portion having a wall surface tapered to have a smaller diameter toward a bottom surface, tearing a part of the rivet body to enlarge a diameter of the part of the rivet body, and allowing the part of the rivet body to penetrate a wall surface of the concave portion,
wherein a ratio L1/L2 of a length L1 of the rivet body in a vertical direction to a depth L2 of the concave portion is 1.5 to 3.0, and
wherein an inner surface of the wall surface of the concave portion is tapered prior to enlarging the diameter of the part of the rivet body.

### Claim 2 (depends on 1)

The method of claim 1, wherein the concave portion has a truncated cone shape, and
in the attaching step, the attached member is attached to the surface by tearing the part of the rivet body to enlarge the diameter of the part of the rivet body and allowing the part of the rivet body to penetrate the wall surface in a tapered shape.

### Claim 3 (depends on 1)

The method of claim 1, wherein the attaching step further comprises a concave-portion formation step of forming the concave portion by pressing the blind rivet against a convex portion formed on the surface and inverting the convex portion.

### Claim 4 (depends on 1)

The method of claim 1, wherein the concave portion is formed on the surface of the resin molded body to have a non-circular shape in a plan view.

### Claim 5

A manufacturing method of a resin panel, comprising:
an attaching step,
wherein, in the attaching step, an attached member is attached to a surface of a resin molded body by arranging a rivet body provided on a blind rivet in a concave portion formed on the surface, tearing a part of the rivet body to enlarge a diameter of the part of the rivet body, and allowing the part of the rivet body to penetrate a wall surface of the concave portion;
wherein the attaching step further comprises a concave-portion formation step of forming the concave portion by pressing the blind rivet against a convex portion formed on the surface and inverting the convex portion.