Band and timepiece

Patent metadata

Field	Value
Publication number	US-11779087-B2
Application number	US-202217727903-A
Country	US
Kind code	B2
Filing date	Apr 25, 2022
Priority date	Apr 26, 2021
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

A band includes a spring rod including a first operation lever linked to a first slider and a second operation lever linked to a second slider, a first piece including a first portion, a second portion, and a linkage section that links the first portion and the second portion to each other, the first piece having a first recess in each of the first portion and the second portion, and a second piece disposed between the first portion and the second portion, the second piece having a second recess. The spring rod is disposed in a closed curve that is the combination of a left first recess, a right first recess, and the second recess in the side view viewed in an axial direction of the spring rod. The second piece is disposed between the first operation lever and the second operation lever.

First claim

What is claimed is:

1. A band comprising:
a spring rod including a first operation lever linked to a first slider and a second operation lever linked to a second slider;
a linkage piece including a first piece and a second piece;
the first piece including a first portion, a second portion, and a linkage section that links the first portion and the second portion to each other; and
the second piece disposed between the first portion and the second portion,
wherein the first piece has a first recess in each of the first portion and the second portion,
the second piece has a second recess,
in a side view viewed in an axial direction of the spring rod, the spring rod is disposed in a closed curve that is a combination of the first recess and the second recess or a combination of the second recess and the linkage section,
the second piece is disposed between the first operation lever and the second operation lever, and
wherein a first angular range that are formed of angles around an axis of the spring rod and correspond to a range of a first contact section where the first recess is in contact with the spring rod is smaller than or equal to 180 degrees,
a second angular range that are formed of angles around the axis of the spring rod and correspond to a range of a second contact section where the second recess is in contact with the spring rod is smaller than or equal to 180 degrees, and
a third angular range that are formed of angles around the axis of the spring rod and correspond to a range of a third contact section where the first recess and the second recess are in contact with the spring rod is greater than 180 degrees.

2. The band according to claim 1 ,
wherein the linkage section is disposed in an opening of the second recess.

3. The band according to claim 1 ,
wherein assuming that the first recess of the first portion is called a third recess and that the first recess of the second portion is called a fourth recess, the first operation lever is disposed in the third recess of the first portion and the third recess restricts rotational movement of the first operation lever, and the second operation lever is disposed in the fourth recess of the second portion and the fourth recess restricts rotational movement of the second operation lever.

4. The band according to claim 1 ,
wherein a first hole formed in the first piece and a second hole formed in the second piece are arranged along a single line, and
a pin is inserted into the first hole and the second hole to fix the first piece and the second piece to each other.

5. The band according to claim 1 ,
wherein the second piece is formed of a plurality of pieces arranged in the axial direction of the spring rod.

6. The band according to claim 1 ,
wherein the first portion of the first piece is provided with a first holding groove that holds the first operation lever in a fittable and removable manner, and
the second portion of the first piece is provided with a second holding groove that holds the second operation lever in a fittable and removable manner.

7. A timepiece comprising the band according to claim 1 .

Assignees

• Seiko Epson Corp

Inventors

• Yamashita Yuki
• Oshio Takumi
• Takiuchi Toru

Classifications

• A44C5/14 Primary

  characterised by the way of fastening to a wrist-watch or the like · CPC title

• A44C5/145

  Hooks · CPC title