Exterior member and timepiece

Patent metadata

Field	Value
Publication number	US-12429825-B2
Application number	US-202217939447-A
Country	US
Kind code	B2
Filing date	Sep 7, 2022
Priority date	Sep 7, 2021
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

An exterior member including an exterior main body having laminated first fiber resin sheets, and a protection member provided on an end surface constituted by layers of the first fiber resin sheets of the exterior main body.

First claim

What is claimed is:

1. A timepiece comprising:
an exterior member comprising:
an exterior main body having laminated first fiber resin sheets, and
a protection member provided on an end surface constituted by layers of the first fiber resin sheets of the exterior main body; and

an upper case attached to an upper part of the exterior member,
wherein the upper case has the laminated first fiber resin sheets.

2. The timepiece according to claim 1 , wherein the protection member is a second fiber resin sheet having fibers arrayed in a direction intersecting with a laminating direction of the first fiber resin sheets.

3. The timepiece according to claim 1 , wherein a projection is provided on an outer circumferential surface of the exterior main body, and the protection member is provided on a surface of the projection.

4. The timepiece according to claim 3 , wherein the projection includes a projection portion and an attachment projection portion which project from the outer circumferential surface of the exterior main body.

5. The timepiece according to claim 2 , wherein the fibers are arrayed in one direction in the second fiber resin sheet.

6. The timepiece according to claim 2 , wherein the fibers are arrayed in two directions while crossing one another in the second fiber resin sheet.

7. The timepiece according to claim 1 , wherein the protection member is a carbon fiber resin sheet which is a fiber-reinforced resin sheet.

8. The timepiece according to claim 1 , wherein the protection member is welded to a surface of a projection provided on an outer circumferential surface of the exterior main body.

9. The timepiece according to claim 1 , wherein each first fiber resin sheet is a fiber-reinforced resin sheet having arrayed glass fibers, and the laminated first fiber resin sheets are colored for each layer.

10. The timepiece according to claim 1 , wherein the exterior main body has the first fiber resin sheets laminated thereon, each of which is a combination of a sheet having arrayed carbon fibers and a sheet having arrayed glass fibers.

Assignees

• Casio Computer Co Ltd

Inventors

• Nakatsuka Yoshiki

Classifications

• B32B5/02

  characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)} · CPC title

• B32B5/12

  characterised by the relative arrangement of fibres or filaments of {different layers, e.g. the fibres or filaments being parallel or perpendicular to each other} · CPC title

• G04B37/18

  for pocket or wrist watches (G04B37/02 - G04B37/16 take precedence) · CPC title

• G04B37/22 Primary

  Materials or processes of manufacturing pocket watch or wrist watch cases {(machines or tools for the manufacture of clockwork cases G04D3/0064, G04D3/0097, G04D3/029; decoration or tools therefor G04B45/0076)} · CPC title