Device case and timepiece

Patent metadata

Field	Value
Publication number	US-10345760-B2
Application number	US-201715791776-A
Country	US
Kind code	B2
Filing date	Oct 24, 2017
Priority date	Dec 21, 2016
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A device case includes a resin case body having an opening which is disposed on a viewing face of the case body and a step which is disposed on an interior of the opening and protruding further to the interior than an inner face of the opening. The device case further includes a windproof member having an outer diameter smaller than an inner diameter of the opening of the case body and larger than an inner diameter of the step; and an adhesive section bonding and fixing the windproof member at a position to seal the opening of the case body. The adhesive section has higher flexibility than the case body.

First claim

What is claimed is:

1. A device case comprising:
a resin case body comprising:
an inner face defining an opening, the opening being disposed on a viewing face of the case body; and
a step disposed on an interior of the opening, the step protruding from the inner face in a direction away from the inner face and further towards the interior of the opening;

a windproof member having an outer diameter smaller than an inner diameter of the opening of the case body and larger than an inner diameter of the step; and
one or more adhesives for bonding and fixing the windproof member at a position to seal the opening of the case body,
wherein a flexibility of the one or more adhesives is higher than a flexibility of the case body;
wherein the one or more adhesives comprises:
a lateral adhesive for bonding the inner face of the case body to an outer face of the windproof member to fix the windproof member to the case body; and
a lower adhesive for bonding at least a portion of an upper face of the step to a corresponding portion of a lower face of the windproof member;

one of an upper face depression or an upper face groove is disposed on at least the portion of the upper face of the step, and
the lower adhesive is disposed in the one of the upper face depression or the upper face groove.

2. The device case according to claim 1 , wherein the windproof member is bonded and fixed to the case body such that an upper face of the windproof member is disposed at a position higher than an upper edge of the opening of the case body.

3. The device case according to claim 1 , wherein at least one of the inner face of the case body and an outer face of the windproof member comprises an uneven surface comprising at least one concave-convex portion.

4. A timepiece comprising:
the device case according to claim 1 ; and
a timepiece module disposed inside the device case.

5. The device case according to claim 1 , further comprising one of an inner face depression or an inner face groove disposed on a portion of the inner face of the case body, wherein the lateral adhesive is disposed in the one of the inner face depression or the inner face groove.

6. The device case according to claim 5 , wherein the one of the upper face depression or the upper face groove is in fluid communication with the one of the inner face depression or the inner face groove through a space formed by the inner face of the case body and the outer face of the windproof member.

Assignees

• Casio Computer Co Ltd

Inventors

• Kayano Eri

Classifications

• G04B43/002

  Component shock protection arrangements (shock damping bearings G04B31/02; shock-damping in the case G04B37/04; protection of the pendulum or chime during transport G04B41/00) · CPC title

• G04B39/025

  without special sealing parts · CPC title

• G04B39/02 Primary

  Sealing crystals or glasses {(sealing the case and the winding stem G04B37/08)} · CPC title

• G04B37/225

  Non-metallic cases · CPC title

• G04B37/088

  Means affording hermetic sealing inside the case, e.g. protective case for the clockwork against dust, the escapement being in a hermetically sealed case (case for watch pieces G04B37/0091; synchronous motor lubrication G04C15/009) · CPC title