Timepiece

Patent metadata

Field	Value
Publication number	US-10824115-B2
Application number	US-201815885022-A
Country	US
Kind code	B2
Filing date	Jan 31, 2018
Priority date	Feb 6, 2017
Publication date	Nov 3, 2020
Grant date	Nov 3, 2020

Abstract

A timepiece allowing accurate positioning of a display plate and a plate member is to be provided. A timepiece 10 includes: a main plate 2 having one or more positioning portions 21 and 22; a plate member 3 having one or more first positioning receiving portions 33 to be locked to the positioning portions 21 and arranged so as to overlap the main plate 2; and a display plate 5 having one or more second positioning receiving portions 55 to be locked to the positioning portions 22 and arranged so as to overlap the plate member 3.

First claim

What is claimed is:

1. A timepiece comprising:
a movement case housing a movement inside and having a main plate on an upper surface side of the movement case, the main plate having first and second sets of stoppers standing vertically directly from the main plate;
a plate member placed directly on the main plate of the movement case, the plate member having one or more first positioning receptors configured to engage directly with either the first or second set of stoppers of the main plate to immobilize the plate member directly on the main plate;
an annular frame comprising a retainer configured to engage with a side surface of the movement case to retain the annular frame on the main plate in such a manner that the annular frame presses the plate member against the main plate between the annular frame and the main plate; and
a display plate placed within the annular frame directly on the plate member; the display plate having one or more second positioning receptors configured to engage directly with either the first or second set of stoppers of the main plate to immobilize the display plate directly on the main plate.

2. The timepiece according to claim 1 , wherein the first and second stoppers are protrusions formed directly on the main plate; and the first and second positioning receptors are recesses configured to engage directly with the first and second stoppers, respectively.

3. The timepiece according to claim 1 , wherein the main plate has a set of spacers standing vertically directly from the main plate, the set of spacers being in contact with the display plate to define a space between the display plate and the main plate.

4. The timepiece according to claim 2 , wherein the main plate has a set of spacers standing vertically directly from the main plate, the set of spacers being in contact with the display plate to define a space between the display plate and the main plate.

5. The timepiece according to claim 1 , wherein the main plate has a third set of stoppers vertically standing directly from the main plate, and the display plate has one or more third positioning receptors configured to engage directly with the third set of stoppers to further immobilize the display plate on the main plate.

6. The timepiece according to claim 1 , wherein the plate member comprises a solar battery.

7. The timepiece according to claim 1 , wherein at least one of the one or more first positioning receptors of the plate member comprises a plurality of first receiving portions, and at least one of the one or more second positioning receptors of the display plate comprises a plurality of second receiving portions, wherein at least one of the first receiving portions is engaged with one of the first or second set of stoppers, and at least one of the second receiving portions is engaged with said one of the first or second set of stoppers.

8. The timepiece according to claim 1 , further comprising an anti-magnetic plate provided between the main plate and the plate member; and the anti-magnetic plate has one or more fourth positioning receptors configured to be engaged with either the first or second set of stoppers.

9. The timepiece according to claim 8 , further comprising an antenna element provided in the movement case, wherein the anti-magnetic plate has a cutout portion for avoiding the anti-magnetic plate from overlapping the antenna element as seen in a vertical direction.

10. The timepiece according to claim 8 , wherein the anti-magnetic plate is electrically connected to a ground conduction portion provided on the main plate side.

11. The timepiece according to claim 8 , wherein the anti-magnetic plate has a guide receiving portion configured to be engaged with either the first or second set of stoppers with which the one or more second positioning receptors of the display plate are engaged.

12. A timepiece comprising:
a main plate having one or more positioning portions;
a plate member having one or more first positioning receiving portions to be locked to the positioning portions and arranged so as to overlap the main plate; and
a display plate having one or more second positioning receiving portions to be locked to the positioning portions and arranged so as to overlap the plate member,
wherein an anti-magnetic plate is provided on the main plate side of the plate member; and the anti-magnetic plate has one or more third positioning receiving portions to be locked to the positioning portions, and
the anti-magnetic plate is electrically continuous with a ground conduction portion provided on the main plate side.

Assignees

• Seiko Instr Inc

Inventors

• Kawata Masayuki

Classifications

• G04B19/14 Primary

  Fastening the dials to the clock or watch plates {(tools, arrangements and machines for the manufacture of watch plates G04D3/0048)} · CPC title

• G04B29/00

  Frameworks · CPC title

• G04C10/02 Primary

  the power supply being a radioactive {or photovoltaic} source · CPC title

• G04R60/10

  inside cases · CPC title

• G04G17/045

  Mounting of the display · CPC title