JPS6240672B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of an external contact connection device (hereinafter referred to as a connector) provided in a watch case of a portable watch. The present invention provides a connector for inputting and outputting signals or power from the outside to a portable watch.

[Prior Art] Conventionally, as shown in Japanese Patent Application Laid-Open No. 52-134775, particularly in FIGS. 5 and 6, a wristwatch main body 41 is provided with a connecting portion 44 of an external display device 43. However, the connecting portion 44 of the external display device 43 was inserted into a side end portion of the wristwatch main body 41 that was different from the band attaching portion.

[Problems to be Solved by the Invention] Therefore, the above-mentioned connection portion 4 in the wristwatch main body 41
Since the insertion point of No. 4 is located at a different location from the band attachment section, the structure becomes more complicated than when both are disposed at one location, and a large amount of space is required for this purpose.

[Purpose] The purpose of the present invention is to solve these problems, and to make the attachment part between the jack 2 of the mobile watch case 1 and the plug 3 connected to an external device compact, and to make the operation thereof easier. To provide a connector that is easy to attach, that allows both to be reliably attached, and that is easy to manufacture.

[Means for Achieving the Object] The connector for a portable watch of the present invention has a band attaching portion 1d that protrudes from a side end portion and attaches the band 5 to the inside thereof, and an upper surface and both side surfaces of the band attaching portion 1d. A mobile watch case 1 having a jack 2 formed astride the mobile watch case 1, a movement 4 built into the mobile watch case 1, and a plug 3 detachably attached to the jack 2 and connected to an external device. The jack 2 has a plurality of external electrical contact terminals 2a connected to the movement 4 and arranged on the upper surface of the band attachment part 1d, and flanges protruding on both sides of the band attachment part 1d. 1b, and a guide groove 1a formed inside the lower part of the flange 1b.
and an engagement hole 1 formed on the outer surface of the guide groove 1a.
c, the plug 3 has a cross-sectional shape that covers the band attachment part 1d, and has an upper wall 3t and side walls formed to hang down on both sides of the upper wall 3t so as to form a lever shape. 3r, and the upper wall 3t
has a plurality of electrical contact members 3b connected to the external cord 3c on its lower surface and in contact with the external electrical contact terminals 2a when the plug 3 is attached to the jack 2.
is exposed and is formed with a guide surface 3k that slides and guides the upper surface of the flange 1b of the jack 2. The side wall 3r has a guide surface 3k that protrudes inward from its lower part and has the guide groove 1a formed on its inner surface. Projection part 3 having a guide surface 3j for sliding guidance on the outer surface
s, and the jack 2 attached to the protrusion 3s.
a case fixing elastic member 3g that presses against the lower surface of the flange 1b when attached to the flange 1b;
and a click pin 3 formed on the inner surface of the protrusion 3s and elastically engaged with the engagement hole 1c of the guide groove 1a.
This is a connector for a portable watch characterized by having h.

[Function] FIG. 1 is a perspective view showing the structure of the present invention, and shows the state before the plug 3 is connected to the portable watch case 1. 1 is a portable watch case, 2 is a jack, and 3 is a plug that has a cord connected to an external tuner section and connects television signals, radio signals, etc. to the watch case. A jack 2 having an external electrical contact terminal 2a held in a watertight manner with an insulating material 2b is fixed to the upper surface of the portable watch case 1 by means of adhesive, plastic directing, fit plus adhesive, or the like. Materials for the insulating material 2b include, for example, polyarylate, acetal, ethylene tetrafluoride, dioxydiphenylpropane carbonate, etc. Plastic resins, which have traditionally been used as exterior parts of mobile watches, are excellent in terms of quality and track record. ing. In particular, the addition of glass fiber can improve wear resistance. Alternatively, inorganic glass may also be considered. Furthermore, if the portable watch case 1 is made of a nonconductor such as plastic, the insulating material 2b may be omitted. Gold and platinum, which have good electrical conductivity and excellent corrosion resistance, are used as materials for the external electrical contact terminals 2a, but generally brass, phosphor bronze, etc. are plated with gold, platinum, etc. Next, the guiding and fixing part of the plug will be explained. On the side of the mobile watch case 1, there is a top surface and an insulating material 2.
A flange 1b is formed to protrude in parallel to b, and a guide groove 1a is formed inside the lower part of the flange 1b. The plug 3 uses the guide groove 1a as a guide in the left and right (horizontal) direction, and the flange 1
b as a guide in the vertical direction, the first
Attachment and removal are performed in the direction of the arrow in the figure.

FIG. 2 is a sectional view of a main part of the portable watch case shown in FIG. The insulating material 2b formed on the top surface of the portable watch case 1 is uniformly formed so that there is no protrusion or depression from the top surface. The external electrical contact terminal 2a is connected to the movement 4 via a conduction spring 4a.
connected to. In addition, in order to prevent the external electrical contact terminal 2a from colliding with the mobile watch case 1 (in the case of a metal case), the external electrical contact terminal 2a is fitted into the insulating material 2b, or fixed by fitting plus adhesive, as described above.
The insulating material 2b is watertightly fixed to the stepped portion provided on the top surface of the mobile watch case 1 by an adhesive method. The portable watch case and jack constructed in this manner are guided and attached by the guiding and fixing portion of the portable watch case in the plug, as described above. FIG. 3 is a sectional view of the main part showing the state in which the plug is attached to the jack. The electrical contact member 3b of the plug and the external electrical contact terminal 2a of the jack are connected. still,
Since the electrical contact member 3b of the plug slides on the surface of the jack from the tip toward the center of the mobile watch case, it is preferable for the external electrical contact terminal 2a of the jack 2 to protrude slightly beyond the surface of the insulating material 2b for continuity. . Furthermore, with this configuration, it is expected that the oxide film formed on the surfaces of the electrical contacts of the plug and jack due to rubbing will be removed each time the plug is attached or detached, thereby improving the stability of the contacts. In the above-mentioned installed state, the power or electrical signal inputted by the external cord 3c of the plug is transmitted to the external electrical contact terminal 2a of the jack via the electrical contact member 3b.
transmitted to. Furthermore, it is sent to the movement 4 via the conduction spring 4a, and appears as a power supply or an output to a display section 4b such as a liquid crystal panel. Conversely, a keyboard or the like (not shown) provided on the mobile watch sends a signal to a device connected to the external cord of the plug, such as a microcomputer, through the reverse route described above, and transmits the calculation results, etc., as described above. Of course, it is also assumed that the information will be sent back to the movement via a route and the information sent will be displayed on a display such as a liquid crystal panel.

Next, the plug portion of the connector for a portable watch according to the present invention will be explained. FIG. 4, FIG. 5, and FIG. 6 are diagrams showing embodiments of the plug of the present invention. Figure 4 is a plan view of the main part, Figure 5 is a partial sectional view of Figure 4, and Figure 6 is a partial sectional view of Figure 4.
The figure is a sectional view taken along the line AA' in FIG. In FIG. 4, a case body 3a made of plastic has a plurality of parts fixed with solder 3f to a pattern 3e drawn with a conductive material on an insulating substrate 3d fixed to the case body by heat caulking or adhesive. The electrical contact members 3b are arranged in the same number and at the same pitch as the external electrical contact terminals 2a of the jack. Further, the electric contact member 3b has elasticity and is configured to absorb variations in the amount of protrusion of the external electric contact terminal 2a of the jack from the insulating material 2b, thereby increasing contact stability. In addition, in order to exhibit the elasticity of the electrical contact member 3b, the case body 3a includes an electrical contact member 3b.
A notch hole 3q is set correspondingly. An external cord 3c enters from one end of the case body 3a and is soldered to a pattern 3e on the board. The external cord 3c and the electrical contact member 3 are connected through the pattern on the board.
b is connected. The other end of the external cord is connected to a power source, information equipment, etc. In FIGS. 5 and 6, the main body case 3a of the plug 3 has an upper wall 3t facing upward.
is provided, side walls 3r are formed hanging down on both sides thereof, a protrusion 3s is formed protruding inward from the lower part of the side wall 3r, and a case fixing member 3g made of an elastic material is disposed on the side of the protrusion 3s. has been done. This case fixing member 3g has a pin 3 on the top surface of the protrusion 3s.
One end is fixed by driving, gluing, etc., and is further partially supported by the case body 3a for position regulation, and the free end of the tip has a spring property, and the repulsive force of the spring causes the flange 1b of the mobile watch case to be fixed. A pressing force is applied to the lower surface to securely attach the plug 3 to the jack 2. Furthermore, in order to increase the adhesive fixing force and the feeling of wearing (click feeling), the protrusion 3
By setting up the click pin 3h on the guide surface 3j on the inner surface of the mobile watch case 1, and dropping the click pin 3h into the engagement hole 1c provided in the guide groove 1a of the mobile watch case 1 when the attachment is completed, the fixing force and wearing feeling are increased. ing. Further, in order to further increase the feeling of wearing, the case body near the click pin 3h deforms when being worn, and in order to facilitate deformation, it is possible to provide a cavity 3n in the side wall 3r and reduce the wall thickness. The click pin 3h is provided by insert molding or driving into the case body 3a. Further, 3j is a guide surface in the left-right direction (horizontal direction) when the plug is attached to the jack 2, and 3K is a guide surface in the vertical direction. The guide surface 3j slides in the guide groove 1a of the portable watch case when the plug is attached or detached.
Further, the guide surface 3K slides on the top surface of the jack, which is the top surface of the mobile watch case, when the plug is attached or removed. The aforementioned case fixing member 3g comes into contact with the lower surface of the flange 1b of the portable watch case, and slides on the lower surface of the flange 1b while being elastically deformed in accordance with the attachment and detachment of the plug. At this time, the electrical contact member 3b undergoes elastic deformation in the vertical direction. Since a force is applied from above to the free end of the case fixing member 3g, the above force can be prevented by providing a bank 3l on the upper surface of the end of the protrusion 3s. The upper lid 3m is attached to the upper surface of the case body 3a by adhesive, heat caulking, ultrasonic welding, etc. to protect the inside and improve the appearance. Next, the materials of the constituent members of the plug 3 will be explained. Case body 3a
Generally, synthetic resins such as ABS and styrene are used. When using a metal material etc., the electrical contact member 3
When fixing b, it is necessary to fix it through an insulating plate. The electrical contact member 3b is preferably made of phosphor bronze plated with gold because it requires electrical conductivity and spring properties, but of course this is not limited to this. Further, the case fixing member 3g is preferably made of stainless steel due to its spring properties, durability, corrosion resistance, and the like. The upper lid 3m may be made of the same synthetic resin as the case body 3a, but it is also conceivable to use a metal plate such as aluminum to improve the appearance.

As described above, the present invention relates to a connector for a portable watch, and relates to a device configured with consideration given to a portable watch case, a jack provided on the top surface of the portable watch case, a plug connected to the jack, and the direction in which the connector is attached.

[Effects of the Invention] The present invention comprises a jack 2 on the top and both sides of the band attachment part 1d (so-called bottom part) of the mobile watch case 1, and a cross-sectional plug 3 is detachably attached to the jack 2. Therefore, the band attachment part 1d and the jack 2 can be centrally arranged in one place, and the side end of the mobile watch case 1 can be configured compactly with multiple functions, and it is easy to manufacture. This makes it easier to wear without the band getting in the way.

Particularly, in the side end part, a band attachment part 1d is formed at the lower center side, an external electrical contact terminal 2a of the jack 2 is provided on the upper part of the band attachment part 1d, and flanges 1b for slidingly guiding and positioning the plug 3 are provided on both sides of the band attachment part 1d.
The guide groove 1a and the engagement hole 1c are configured, and by distributing the components of the jack 2 on the top and both sides, there is no need for extremely thick parts, and the area around the band attachment part 1d is formed. The space could be used effectively, and the overall structure was compact.

Moreover, the external electrical contact terminal 2a is connected to the band attachment part 1d.
Since it is arranged on the upper surface of the terminal, a large space can be secured, and a large number of external electrical contact terminals 2a can be arranged, making it possible to accommodate more multi-functionality. Furthermore, since a case fixing elastic member 3g that presses the lower surface of the flange 1b is provided on the plug 3 side, the plug 3 is attached to the plug 2.
It is well constructed and can be installed securely without any wobbling.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of the present invention. FIG. 2 is a sectional view of essential parts of the portable watch case shown in FIG. 1. FIG. 3 is a cross-sectional view of the mounting of the portable watch jack and the plug. 4, 5, and 6 show the plug of the present invention, FIG. 4 is a plan view, FIG. 5 is a partial sectional view of FIG. 4, and FIG. 6 is a view of A of FIG.
-A' direction cross-sectional view. 1...Mobile watch case, 1a...Guide groove, 1b
...Flange, 1c...Engagement hole, 2...Jack, 2a...External electrical contact terminal, 2b...Insulating material, 3...Plug, 3a...Plug body, 3b...
...Electrical contact member, 3c...External cord, 3d...
Insulating board, 3g...Case fixing member, 3h...Side pin, 4...Movement.

Claims (1)

[Claims] 1. A band attaching portion 1d that protrudes from the side end and attaches the band 5 to the inside thereof, and a jack 2 formed across the top and both side surfaces of the band attaching portion 1d.
a movement 4 built into the mobile watch case 1; and a plug 3 that is detachably attached to the jack 2 and connected to an external device; A plurality of external electrical contact terminals 2a conductive to the movement 4 and arranged on the upper surface of the band attachment part 1d.
, a flange 1b protruding from both sides of the band attachment portion 1d, a guide groove 1a formed inwardly at the bottom of the flange 1b, and an engagement hole 1c formed on the outer surface of the guide groove 1a. The plug 3 has:
It has a cross-sectional shape that covers the band attachment part 1d, and has an upper wall 3t and side walls 3r hanging down from both sides of the upper wall 3t to form this shape. has external code 3 on its bottom surface.
a guide surface on which a plurality of electrical contact members 3b are exposed and connected to c and which come into contact with the external electrical contact terminals 2a when the plug 3 is attached to the jack 2, and which slide guides the upper surface of the flange 1b of the jack 2 3k is formed on the side wall 3r,
A guide surface 3j is formed to protrude inwardly at the lower part thereof and is slidably guided to the outer surface of the guide groove 1a on the inner surface thereof.
a case fixing elastic member 3g that is attached to the protrusion 3s and presses against the lower surface of the flange 1b when the jack 2 is attached to the flange 1b; and a case fixing elastic member 3g formed on the inner surface of the protrusion 3s. A connector for a portable watch, characterized in that it has a click pin 3h that elastically engages with the engagement hole 1c of the guide groove 1a.