JPH0533989Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a double-sided watch having clock faces on both sides.

(Prior Art) A clock having a clock face on both the front and back sides, which can be used for different purposes as needed, is known, for example, as disclosed in Japanese Utility Model Application No. 56-34418 and No. 57-37485.

(Technical Issues) However, many conventional double-sided watches have a structure in which two movements are housed back to back on one side, which is structurally wasteful.

The purpose of the present invention is to provide a double-sided timepiece that has a rational structure that facilitates assembly, reduces the number of parts, and allows the movement to be fixed accurately and completely.

(Technical Means) The object is to have two clock movements 1 and 2 that operate independently, a housing section for accommodating each movement on the inner surface, and a protective glass on the outer surface,
Furthermore, fitting means 3 and 4 are formed on the inner surface of the pair of watch sides 5 and 6, a pressing spring 9 that contacts and fixes the inner frames 7 and 8 that protect each movement, and This is achieved by a configuration including protruding pieces 11 and 12 that protrude toward each other, engage with each other, and are connected by a shaft 10.

(Embodiment) To explain with reference to the drawings, the embodiment is of a wristwatch type, and two clock movements 1 and 2 that operate independently have integral dials 13 and 14, respectively.
It is housed in housing portions 15 and 16 on each watch side 5 and 6 (FIG. 3). 17 and 18 are each dial 13,
The steps 19 and 20 that support 14 at their outer edges are protective glasses, and in the case of the analog type, the needles 21 and 22 fit into their inner cavities.

The middle frames 7 and 8 protect each movement 1 and 2,
It is a member temporarily fixed to each side 5, 6, and is annular with a center hole 23 into which each movement 1, 2 is fitted,
The circumferential wall 17 of the stepped portions 17 and 18 is formed of resin into a substantially C-shape with a notch 24 in part, and is made of elastic material.
a, 18a to hold down the dial and temporarily fix the movement. 24a is a notch connecting portion, 25, 26
shows a crown with an axis passing through the notch 24.

The pressing spring 9 is connected to the movements 1 and 2 described above.
It is fixed in a fixed position, and has an annular shape and is fitted into the inner circumferential wall of the housing part 16 on either side 6, and both sides 5 and 6 are fitted by fitting means 3 and 4. When assembled together, both sides contact the middle frames 7 and 8. Reference numeral 27 denotes a notched circular portion which also serves as a passing portion for one crown shaft, and the other crown shaft passing recess 28 is formed at a symmetrical position.

The fitting means 3, 4 are formed in the shape of rising flanges on the outside of the periphery of the accommodating portions 15, 16, and can fit the pair of sides 5, 6 into one body in an interlocking manner. 29 is a seal ring provided on its outer periphery; 30
indicates the separator between both movements.

The protrusions 11 and 12 are the final connecting means of the pair of sides 5 and 6, and in the case of the wristwatch of the embodiment, the band 3
It also serves as a connection means with 1. One protrusion 11
is provided on one side 5, and the other projecting piece 12 is provided on the other side 6 so that both ends of the band 31 can be attached. By attaching the shaft 10 to the shaft holes 32, 33 of the projecting pieces 11, 12, the two sides 5, 6 become inseparable. Reference numeral 34 indicates a connecting shaft hole at the end of the band 31.

Furthermore, the watch band 31 also has a front-back conversion structure, and has band surfaces on the front and back sides with a design that matches the dials 13 and 14 and the sides 5 and 6. FIG. 4 shows an example of a clasp 35 that can be operated from both sides, and the clasp 35 has a locking plate 37 provided with locking notches 36 on both sides, and a locking pin 3 that engages with the notches 36.
8 and 38 protruding from each other, and lock opening/closing plates 41 and 41 pivotally supported at the ends of the locking plate 37.
The claws 42 and 43 also include a locking shaft 44 that is elastically locked in common from both sides.

The movements 1 and 2 may be analog-only, digital-only, or a mixture thereof, and the sides 5 and 6 on both sides of the watch and both sides of the band 31 have different designs.

(Operations and Effects of the Invention) The double-sided timepiece of the present invention having the above-described configuration has a movement 1 having dials 13 and 14 on the same sides 5 and 6, except that the fitting means 3 and 4 are structurally different. , 2, the storage parts 15, 1 of the middle frames 7, 8
Since the movement is temporarily fixed to each side 5 and 6 by fitting into 6, the movement is integrated with each side at an early stage of assembly, making handling easier.

When the pair of sides 5, 6 are combined together by the fitting means 3, 4, each movement 1, 2 held down by the middle frame 7, 8 is moved between the respective sides 5, 6 by the pressing spring 9 interposed between them. 6, the assembly position will not shift and the movement can be fixed accurately and completely.

Each side 5, 6 is finally connected by passing a shaft 10 through protrusions 11, 12 protruding from their peripheries, and the connecting shaft 10 can also serve as a means for connecting with the watch band 31, so that In the case of a wristwatch,
The number of parts and points can be reduced.

[Brief explanation of the drawing]

The drawings show one embodiment of the double-sided timepiece according to the present invention; Fig. 1 is an exploded perspective view, Fig. 2 is a plan view of the middle frame, Fig. 3 is an enlarged sectional view, and Fig. 4 is a perspective view of the band clasp. It is a diagram. DESCRIPTION OF SYMBOLS 1, 2... Movement, 3, 4... Fitting means, 5, 6... Side, 7, 8... Middle frame, 9... Pressing spring, 10... Shaft, 11, 12... Projection piece.

Claims (1)

[Scope of claims for utility model registration] (1) Two independently operating clock movements 1,
2. A pair of watch sides 5 and 6 each having a housing portion for accommodating each movement on its inner surface, a protective glass provided on its outer surface, and fitting means 3 and 4 formed on the inner surface to protect each movement. a pressing spring 9 that contacts and fixes the inner frames 7 and 8; projecting pieces 11 and 1 that protrude outward from the periphery of each watch side and engage with each other and are connected by a shaft 10;
A double-sided clock having a configuration comprising 2. (2) The shaft 10 and protrusions 11 and 12 are part of the watch band 31
2. A double-faced watch according to claim 1 of the utility model registration claim, which also serves as a means for connecting with the utility model.