JPH0450558Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Technical field of invention] This idea relates to wristwatches.

[Prior art and its problems] In recent years, wristwatches in which a watch band and a watch case are integrally formed have been commercialized, but since the case part of this type of wristwatch is larger than the band part, it is difficult to design. Not only is this undesirable, but it also has drawbacks such as there are limits to miniaturization and thinning, and the number of parts such as the watch glass is large, making assembly work complicated and troublesome.

[Purpose of the invention] This invention was devised in consideration of the above-mentioned circumstances.The purpose of this invention is to provide an excellent design, to easily and easily position the watch module, and to improve assembly workability. The object of the present invention is to provide a wristwatch that can be made smaller and thinner.

[Main points of the invention] In order to achieve the above-mentioned objectives, this invention forms the case with a transparent member, forms a protruding display window on the top surface, and has a display window in the center of the outer wall in the 12 o'clock and 6 o'clock directions. A protruding part for attaching a band is formed on the part, and locking parts are formed on both sides of the protruding part for attaching a band, and the engaging rising part of the back cover is locked to the locking part to attach the back cover. The band has the same width and forms a case storage part having an opening located at the center of the upper surface into which the display window fits, and on both sides in the longitudinal direction below the opening of this case storage part. A side wall is formed that has a hole penetrating in the lateral direction and a recess in which the band attachment protrusion is arranged. The case is attached to the watch band by inserting the pin member into the hole in the band attachment protrusion and the hole in the side wall of the watch band.

[Example] Hereinafter, an example of this invention will be described with reference to the drawings.

1 in the figure is a watch band. This watch band 1
consists of a band body 2 and a decorative sheet 3, which are integrally formed by two-color molding. That is, the band main body 2 is made of a polyurethane-based soft synthetic resin, and is formed to have the same width as a whole, with a thicker middle part, and a storage part for storing the unitized watch module 4 in this part. 2a, and a recess 2b into which the decorative sheet 3 fits is formed along the band main body 2 on the upper surface. In this case, a stopper frame 5 is attached to one end of the band body 2 (the right end in FIG. 1) with a spring rod 6, and a buckle 7 is attached to the other end.
is about to be installed. Decorative sheet 3
is made of a soft synthetic resin of a color different from that of the band body 2, and is integrally formed in the recess 2b of the band body 2 by secondary molding, and the housing part 2 of the band body 2
Display window section 8a of the clock module 4 housed in a
An opening 3a is formed in a corresponding portion.

On the other hand, the watch module 4 is the main part of the watch, and has a circuit board 9 inside the housing (case part) 8.
It is equipped with a liquid crystal display panel 10, electrode plates 11, 12, and a battery 13, and a back cover 15 is attached therebelow through a gasket 14. It is installed by

That is, the housing (case part) 8 is made of acrylic;
It is made of transparent synthetic resin such as polycarbonate or ABS resin, has a parts storage section formed inside, and has an arcuate top surface, with a display window 8a slightly protruding from the part corresponding to the liquid crystal display panel 10. The mounting portions 8b and 8b are formed on the outer walls on both sides.
8b and locking parts 8c, 8c (one not shown)
is formed. As shown in FIG. 3, the attachment parts 8a, 8a are arranged in recesses 2d, 2d formed on both side wall surfaces in the storage part 2a of the band main body 2,
It can be installed with press-fit pins 16, 16,
At its center are mounting holes 8d and 8 as shown in Figure 1.
d is provided. The mounting holes 8d, 8d correspond to the holes 2c, 2c formed on both sides of the recessed portions 2d, 2d of the storage portion 2a, and the press-fit pins 16, 16 are inserted through the holes 2c, 2c into the mounting hole 8d. , 8d, the housing (case portion) 8 is attached within the storage portion 2a of the band main body 2.

The circuit board 9 is the main part of the clock circuit, and the LSI 9
A, a crystal oscillator 9b, a chip capacitor, and other various electronic components are arranged in a component storage section of a housing (case section) 8. The liquid crystal display panel 10 displays time information, and is supported and electrically connected to the circuit board 9 by an interconnector 10a. The battery 13 is a power source for the entire circuit, and is placed in the parts storage section of the housing (case part) 8 with an insulating sheet 17 in between, and its positive (+) pole is connected to the electrode plate 11 and its negative (-) pole is connected to the electrode plate 12 are connected to the circuit board 9, respectively. Note that the electrode plate 11 is in contact with the side surface of the battery 13, and screws 11a are attached to the bottom surface of the circuit board 9.
11a, and through holes 11b, 11b are formed at predetermined locations.

The back cover 15 elastically presses down the components housed in the housing (case part) 8 via the gasket 14, and has a flat plate shape, and hooks 15a are bent upward on both sides of the back cover 15. At the same time, mounting holes 15b, 15b are formed at locations corresponding to the through holes 11b, 11b of the electrode plate 11. Hook 15a... is the housing (case part)
The back cover 15 is removably locked to locking portions 8c formed on the outer walls on both sides of the housing 8, thereby attaching the back cover 15 to the housing (case portion) 8. Further, a key button 18 is attached to the mounting holes 15b, 15b. This key button 18 is used to adjust the time, change the display, etc., and is made of insulating rubber or the like.
There are two button parts 18b, 18 on the bottom surface of the key body 18a.
b is integrally formed, and a movable contact 1 is provided on the top surface.
8c and 18c are printed corresponding to the button parts 18b and 18b. Therefore, each button part 18b, 18
When b is attached to the mounting holes 15b, 15b of the back cover 15 from the inside, each button part 18b, 15b is attached as shown in FIG.
18b is exposed on the outside (lower side), and the key body 18a
is arranged on the inner surface of the back cover 15, and the key button 18 is attached to the back cover 15 in this state. When the key button 18 is attached in this manner, the key body 18a is placed in the opening 14a of the gasket 14, and the movable contacts 18c, 18c on the upper surface thereof are placed in the through holes 11b, 11b of the electrode plate 11 above it. Fixed contacts 9c, 9c arranged and formed on the lower surface of the circuit board 9
(one not shown) are spaced apart and facing each other. However,
When the button part 18b is pressed from the underside of the back cover 15, the key body 18a is elastically deformed and pushes up the movable contact 18c, and the movable contact 18c contacts the fixed contact 9c on the lower surface of the circuit board 9, thereby causing switching. People are starting to do this. The gasket 14 is intended to be waterproof and is made of a rubber sheet, and is provided with an opening 14a for a key button, an opening 14b for a crystal resonator, a recess 14c for storing a battery, and holes 14d for storing screws. ing.

However, according to the electronic wristwatch configured as described above, the watch band 1 is formed with the same width, and the watch case or case part does not protrude to the side of the band as in the conventional case, so the appearance is improved. This makes it more attractive in terms of design. In particular, an opening 3a is formed in the decorative sheet 3 provided on the top surface of the band body 2, and only the time display part of the unitized watch module 4 can be seen through this opening 3a, so that the overall appearance of the watch becomes even more beautiful. It becomes clear. Furthermore, since the decorative sheet 3 is integrally molded in a different color from the band main body 2, it is possible to obtain a wide variety of designs and to manufacture it easily and efficiently.

In addition, the above-mentioned wristwatch does not require a conventional watch case, watch glass, etc., so it has fewer parts, is easy to assemble, can be manufactured at low cost, and can be made thinner overall. and miniaturization can be achieved. In particular, when attaching the unitized watch module 4 to the watch band 1, all predetermined parts are stored in the housing (case part) 8 and pressed with the back cover 15, and then the housing (case part) 8 is pressed down with the back cover 15. part) 8 in the storage part 2a of the band main body 2, and press-fit pins 16, 16.
Since it is attached to the watch band 1, the installation workability is extremely good. In this case, a display window portion 8a corresponding to the internal liquid crystal display panel 10 is formed on the upper surface of the housing (case portion) 8 so as to protrude slightly. The housing (case part) 8 can be easily and accurately inserted into the opening 3a.
positioning can be performed.

Furthermore, in the electronic wristwatches mentioned above,
Since the back cover 15 is attached directly to the housing (case part) 8, not only can the number of parts of the watch module 4 be reduced, but also the back cover 15 can be attached directly to the housing (case part) 8.
Hook 15a... of the housing (case part) 8
By simply locking the back cover 15 into the locking parts 8c formed on the outer wall of the housing (case part) 8,
Since the watch module 4 can be installed extremely easily, the workability of assembling the watch module 4 is extremely good. Moreover, since the key button 18 is provided on the back cover 15, the key button 18 can be easily attached, and the button parts 18b, 18 are provided on the sides of the watch band 1.
Since b does not protrude, it is preferable in terms of appearance and design.

In the above embodiment, the decorative sheet 3 is molded integrally with the band main body 2, but the present invention is not limited to this, and the decorative sheet 3 is formed separately in the recess 2b of the band main body 2. Of course, it is also possible to bond with an adhesive or the like.

[Effects of the invention] As explained above, the wristwatch of this invention has an excellent design, is smaller and thinner, and
Not only is it easier to attach the case to the watch band, but the protruding part can be used as a guide when the engaging rising part of the back cover is locked to the locking part, making it easier to attach the case back. It has the advantage of being able to reliably prevent horizontal movement and being firmly fixed.

[Brief explanation of drawings]

The figures show one embodiment of this invention; Fig. 1 is an exploded perspective view of the wristwatch, Fig. 2 is a plan view of the main parts of the wristwatch,
FIG. 3 is a bottom view thereof, FIG. 4 is a sectional view taken along line A-A, and FIG. 5 is an enlarged view of section B. 1...Watch band, 2...Band body, 2a...
...storage part, 2b...recessed part, 3...decorative sheet, 3
a...Opening, 4...Watch module, 8...Housing (case part), 8a...Display window part, 10...
...Liquid crystal display panel.

Claims (1)

[Claims for Utility Model Registration] A display device is housed inside, and a protruding display window portion corresponding to the display device is formed on the top surface. a transparent case in which a protrusion for attaching a band having a hole penetrating in the 9 o'clock direction is formed, and locking parts are formed on both sides of the protrusion for attaching the band; The back cover is formed with a raised engagement part that is engaged with the engagement part of the case, and has a width that is almost the same over the entire length in the longitudinal direction, and is located in the center of the top surface and is fitted with the display window part. A matching opening is formed to form a housing part of the case, and a hole penetrating in the widthwise direction and a recessed part in which the band attachment protrusion is arranged are provided on both sides of the housing part in the longitudinal direction below the opening. a pin member inserted into a hole in a protrusion for attaching a band of the case and a hole in a side wall of the watch band; The wristwatch is mounted to the watchband by inserting the pin member into a hole in a band attachment protrusion of the case and a hole in a side wall of the watchband.