JPH0836067A - Exterior structure of timekeeper, etc. - Google Patents

Abstract

PURPOSE:To provide an structure with sufficient protection for a frame body by forming a plurality of projected stripes in contact with the outer circumferential face of the frame body on the inner circumferential face of an elastic cover covering the outer circumferential face of the frame body. CONSTITUTION:A frame body 1 made of a plastic has an open part 4a in the front face, an elastic cover 4 made of a synthetic rubber, etc., and having a shape corresponding to the outer shape of the frame body 1 is elastically fixed in the frame body 1 to cover the outer face of the frame body 1. A plurality of projected stripes 4d are formed in parallel mutually, on the inner circumferential face of the elastic cover 4, the projected stripes 4d are brought into contact with the outer circumferential face of the frame body 1, and plurality of caps 4e are formed between a plurality of respective projected stripes 4d. In addition to that the elastic cover 4 itself is made of a material which can absorb impact, the inner face part of the elastic cover 4 can be deformed and enter a plurality of the voids 4e formed between a plurality of respective projected stripes 4d to absorb the impact in the case where impact is applied to the elastic cover 4 from the outside due to the falling, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior structure of a timepiece or the like.

[0002]

2. Description of the Related Art Conventionally, as an exterior body of a watch or the like, one having a structure in which an outer surface of a frame body is covered with an elastic cover formed of synthetic rubber or the like in order to absorb an impact from the outside due to a drop or the like is known. ing. For example, the actual fair 4-34471
Japanese Patent Application Laid-Open No. 2003-242242 discloses a frame body having a rear end opening into which a timepiece mechanical body and the like are mounted, an outer peripheral surface of the frame body, and an opening edge portion of the frame body fitted at a rear end portion of the frame body. An elastic cover having a mating portion formed therein, a case back mounted so as to cover the opening of the frame, and a tongue piece formed at the engaging portion of the elastic cover so as to face the inner surface of the edge of the case back. And a pillar formed on the frame and the lid so as to face each other.

[0003]

However, in the above-mentioned prior art, although the elastic cover itself absorbs the impact, the outer surface of the frame body and the inner peripheral surface of the elastic cover are substantially entirely. Since the elastic cover does not sufficiently absorb the impact due to the drop or the like, the elastic cover is deformed and the elastic cover exerts an impact force on the frame body, which causes a problem that the frame body is damaged. .

Therefore, an object of the present invention is to provide an exterior structure for a watch or the like in which the frame body is sufficiently protected.

[0005]

In order to achieve the above object, the exterior structure of a timepiece or the like of the present invention comprises a frame body and an elastic cover for covering the outer surface of the frame body, and the inner peripheral surface of the elastic cover. A plurality of ridges are formed on the outer peripheral surface of the frame body so as to contact the outer peripheral surface of the frame body.

[0006]

The details of the present invention will be described below with reference to the preferred embodiments shown in the accompanying drawings. The present embodiment is an example in which the present invention is applied to an alarm clock. The frame 1 is made of plastic, and as shown in FIG. 2, a circular recess 1a is formed on the front surface of the frame 1. Bottom 1b of recess 1a
A dial 2 is provided on the. The side wall of the recess 1a is formed in a step portion 1c having a larger diameter on the front side.
The side closer to is the side wall 1d on which the front cover 3 is mounted, and the farther is the side wall 1e on which the elastic cover 4 is mounted. On the bottom surface side of the side wall portion 1d, there are provided a plurality of engagement holes 1f that engage with engagement projections 3c of the front cover 3 described later.
The side wall portion 1e is provided with a plurality of engagement holes 1g that are fitted with protrusions 4c of the elastic cover 4 described later.

The frame 1 has an opening 4a corresponding to the recess 1a on its front surface, and an elastic cover 4 formed of synthetic rubber or the like having a shape corresponding to the outer shape of the frame 1 is elastically fitted. And the outer surface of the frame 1 is covered.

Further, an engaging portion 4b is formed on the front surface of the elastic cover 4 so as to cover the side wall portion 1e of the recess 1a of the frame body 1. Further, from the engaging portion 4b, the engaging hole 1g of the frame body 1 is formed. A plurality of protrusions 4c that fit together are integrally formed toward the side wall of the recess 1a.

As shown in FIG. 3, a plurality of ridges 4d are formed in parallel on the inner peripheral surface of the elastic cover 4. The ridges 4d are in contact with the outer peripheral surface of the frame 1 and Ridge 4d
A plurality of voids 4e are formed between them. Elastic cover 4
It is made of a material that can absorb impact force,
When an impact is applied from the outside of the elastic cover 4 due to a drop or the like, the plurality of voids 4 provided between the plurality of protrusions 4d are formed.
The inner surface portion of the elastic cover deforms and enters into e and absorbs the impact force. Therefore, even when an impact is applied from the outside of the elastic cover 4, a strong impact force is not applied to the frame body 1, so that the frame body 1 can be prevented from being damaged.

The front cover 3 has a substantially U-shaped cross section whose rear end is opened by a disc portion 3a and a ring-shaped outer wall portion 3b which extends around the disc portion 3a in a direction substantially perpendicular to the disc portion 3a. , Made of transparent plastic. At the rear end portion of the outer wall portion 3b of the front cover 3, the engagement hole 1f of the frame body 1 is provided.
Is provided with an engaging protrusion 3c.

The front cover 3 is mounted from the front of the dial 2 so as to cover the concave portion 1a from the front side of the frame body 1 after the projection 4c of the elastic cover 4 is fitted into the engaging hole 1g of the frame body 1. The engaging projection 3c of the front cover 3 is inserted into the engaging hole 1f of the frame body 1.
Are engaged. The dial 3 is in contact with the rear end of the front cover 3.

In this state, the projection 4c of the elastic cover 4 is prevented from coming off the engagement hole 1g of the frame 1 by the outer wall 3b of the front cover 3. Therefore, even if the outer surface of the elastic cover 4 is strongly sandwiched, the engaging portion 4b of the elastic cover 4 is
Does not come off from the frame 1.

The timepiece mechanical body (not shown) is a concave portion 1a of the frame body 1.
Is attached to the back surface of the dial 2, and its pointer shaft group (not shown) projects from the dial 2 to the front cover 3 side through the central hole (not shown) of the dial 2, and as shown in FIG. A pointer 5 corresponding to each pointer shaft is attached between the cover 3 and the dial 2.

Further, on the back side of the timepiece mechanical body, there are provided a noise stop lever (not shown) and a reference shaft (not shown). A snooze button (not shown) is provided inside the front upper surface of the elastic cover 4.
Is located and can be pressed from the outside of the elastic cover 4.

A back cover (not shown) is attached to the back surface of the frame body 1, and a squeal stop lever, a needle turning shaft, and the like project from the back cover and can be operated from the outside.

[0016]

Since the present invention has the above-described structure, it is possible to absorb the impact force due to the property of the material of the elastic cover itself, and in addition, the inner surface portion of the elastic cover is provided in the plurality of voids. Since the impact force can be absorbed by entering, it is possible to prevent a strong impact force from being applied to the frame body, and it is possible to sufficiently protect the frame body.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of a main part.

FIG. 3 is a side sectional view of the elastic cover shown in FIG.

[Explanation of symbols]

 1 frame 4 elastic cover 4d ridge

Claims (1)

[Claims] 1. A frame body and an elastic cover for covering an outer surface of the frame body, wherein a plurality of protrusions are formed on an inner peripheral surface of the elastic cover so as to contact an outer peripheral surface of the upper frame body. The exterior structure of watches, etc.