CN1012854B - Connecting part of watch guard and watch case - Google Patents

Abstract

A connection structure of a watchband and a watch case is provided, which is characterized in that: a separated part made of metal is positioned between a hard plastic watch case and a soft plastic watchband and then becomes a common insert in plastic forming die, thereby overcoming the shortcomings of complicated metal mould, insecure connection and poor appearance when moulding and connecting the hard watch case and soft watchband in prior art directly. The application of the connection structure of the invention not only reduces the mould cost and enhances the joint strength, but also carries out decoration process such as plating and engraving to improve the product quality grade of all the watches for the reason that most of the separated parts made of metal are nude.

Description

Connecting part of watch guard and watch case

The present invention is about the syndeton of watchcase and watchband.

Along with the low priceization of wrist-watch, watchcase and watchband synthetic resin commonly used is made advancing year.

Particularly consider multimeter shell and watchband integrally formed from the design and the angle of producing.As this method, being disclosed in (Japan) opens in clear 60-154886 number in fact, as shown in FIG. 9, on the dress band portion of the watchcase 110 of the hard resin of ABS resin and so on, flow into simultaneously as the shaping of watchband 120, watchcase 110 and watchband 120 are connected and fixed with the soft synthetic resin of polyurethane elastomer and so on.

This structure is forming bossing 130 in order to keep the constant intensity of watchcase and watchband on the dress band portion of shell-side, the contact area of increase and soft resin makes the shape elegance again on the one hand, and pulling force is strengthened.

But, in the one-piece type watchcase of the such watchband that has earlier following shortcoming is arranged, that is,

(1) for soft synthetic resin and hard resin are shaped in same operation, make the full genus mould that is shaped complicated, the cost of finished product watchcase is increased.

(2) bed knife of soft band and hard shell is changed by the contacting of band of dress band portion and soft synthetic resin, produces the instability of bed knife.

(3) watchcase and watchband unavoidably have the cheap goods sense owing to all be that synthetic resin constitutes, and just can not get feeling of high class as table.

Purpose of the present invention is exactly the above-mentioned shortcoming that has earlier in order to solve, and uses the simple metal pattern that finished product watchcase cost is increased, and shell and being connected of band are strengthened, and have stability, more can obtain unprecedented design variation and feeling of high class.

The feature of structure of the present invention is, at least a portion be hard resin be shaped the watchcase form and, be shaped between the band that forms by soft synthetic resin, there be the part of Jie to show and separate part, separate at this and form each projection and/or the recess that is embedded in above-mentioned watchcase and the watchband on part with what metal was done on the surface of centre.

When watchcase is shaped, the separating in the part of the metal that hard resin is flowed in metal pattern, insert in advance, when being shaped, watchcase makes to separate part and fix.In addition, when watchcase is shaped, carry out watchband and be shaped, the soft resin inflow is separated in the part fix with watchband.

Gu this, watchcase and watchband firmly fix by separating part.Separate on the part that the resin of part is not covered with in connection again, promptly on the surface portion as table, carry out decorative machining and the feeling of high class of acquisition table, to obtain unprecedented variation design.

Below embodiments of the invention are illustrated with reference to accompanying drawing, wherein:

Fig. 1 to Fig. 8 has shown embodiments of the invention, and Fig. 1 to Fig. 5 is the 1st embodiment,

Fig. 1 is the planimetric map of watchcase and watchband,

Fig. 2 is the outboard profile of Fig. 1,

Fig. 3 is the enlarged drawing of Fig. 2 A portion, is the part outboard profile that shows watchcase and watchband syndeton,

Fig. 4 is the planimetric map that separates part,

Fig. 5 is V-V line sectional drawing of Fig. 4,

Fig. 6 to Fig. 8 is the 2nd embodiment,

Fig. 6 is the part outboard profile that shows watchcase and watchband syndeton,

Fig. 7 is the planimetric map that separates part,

Fig. 8 is VIII-VIII line sectional drawing of Fig. 7,

Fig. 9 is the planimetric map that separates part that scarfing is set on projection,

Figure 10 is XI-XI line sectional drawing of Fig. 9,

Figure 11 makes hook-shaped planimetric map to the projection that separates part,

Figure 12 is XII-XII line sectional drawing of Figure 11,

Figure 13 be the demonstration watchcase of example and watchband syndeton arranged earlier want portion's sectional drawing.

Fig. 1 is the planimetric map according to watchcase of the present invention and watchband,

Fig. 2 is the outboard profile of Fig. 1.

In Fig. 1 and Fig. 2 with hard resin ABS(acrylonitrile-butadiene-styrene (ABS) for example) resin, the watchcase 1 that AES resin and so on is shaped is connecting for example watchband 2 that is shaped of polyurethane elastomer, polyester based resin elastic body and so on of soft synthetic resin by separating other part 3.

Fig. 3 is the enlarged drawing that shows Fig. 2 A portion of the 1st embodiment, is the part outboard profile that shows the syndeton of watchcase and watchband.

Separate other part 3 and be arranged to watchcase 1 and watchband 2 are separated, but watchcase 1 is being connected with watchband 2.In addition, the surface portion 5 that separates other part 3 is not covered like that by hard resin or soft synthetic resin and reveals.

Fig. 4 is the planimetric map that separates other part,

Fig. 5 is V-V line sectional drawing of Fig. 4.The projection that is provided with in order to be connected with watchcase 1 is arranged separating on other part, i.e. and there is the projection that is provided with in order to be connected with watchband 2 in the 1st portion 6, promptly in the 2nd portion 7 at the 1st portion 6 backs.Prevent to get loose a plurality of through holes 8 of usefulness being provided with in each sheet portion for what strengthen watchcase 1, watchband 2 and separate bed knife between other part 3.When being shaped, hard and soft resin flow into this and separate other part 3, and through hole 8 is filled by each resin, thereby make hard resin and soft synthetic resin and separate other part 3 and firmly fix.

Again, separate the projection that is connected with watchcase 1 on other part 3 among the figure, i.e. sheet portion 6, the projection that is connected with watchband 2, though be that sheet portion 7 is that protrude with staggering round about the position, also can be on same (level) position, to protrude round about symmetrically.

Also have, prevent to get loose part except through hole 8, also can in the 1st, the 2nd portion, form the scarfing 10 as shown in Fig. 9 and Figure 10, again, it also can be the combination of through hole and scarfing, connect watchcase 1 and watchband 2 owing to separate other part 3 on the structure of table,, can make the simple structureization of metal pattern because just do not need to adopt the baroque metal pattern that uses for purpose of connecting with this.

Promptly as long as other part 3 of metal that makes watchcase 1 be connected usefulness with watchband 2 has been housed in the metal pattern.

Therefore metal pattern comes price cheap compared with what have earlier.As shown in Figure 3, the surface portion 5 that separates part 3 is not synthesized the resin mulched ground and reveals.On the surface portion 5 that reveals, can carry out decorative machining gold-plated, the engraving and so on.

Again, in this structure, connect usefulness separate part 3 when being shaped owing to make and insert in the metal pattern, not only just this separates part 3, but the part of watchband as shown in fig. 1 also can make insert for the pipe 4 that designs and make texture improve usefulness.

Figure below, Fig. 6 are to have shown the 2nd embodiment of the present invention, have shown the part outboard profile of watchcase and watchband syndeton,

Fig. 7 is the planimetric map that separates part,

Fig. 8 is VIII-VIII line sectional drawing of Fig. 7.

Identical with the 1st embodiment, the watchcase 11 that is shaped with hard resin is connected with the watchband 12 that is shaped with soft synthetic resin by separating part 13.It is metal separating part 13 and watchcase 11, watchband 12 are arranged to separately, but watchcase 11 and watchband 12 are coupled together, as shown in Figure 6.In addition, the surface portion 14 that separates part 13 is removed outside the both ends of the surface, is not covered complete like that surface by hard resin, soft synthetic resin and all reveals.Separate the recess on each end face that part 13 and watchcase 11 and watchband 12 engage, the opening that pulls out dovetail groove 15 that moves back that enlarges is to the inside arranged.This dovetail groove 15 plays to be strengthened and the fixation of watchcase 11, watchband 12.Hard resin and soft synthetic resin flow in the dovetail groove 15 of recess when being shaped, and after each resin was filled and solidified, hard resin and soft synthetic resin were just and separate part 13 and firmly fix.But the shape of dovetail groove 15 is not defined extremely in the present embodiment, every after hard resin and soft synthetic resin are filled curing separately, be difficult for the shape that is released out can.

Also have, identical with the 1st embodiment because watchcase 11 and causing being connected by the above-mentioned part 13 that separates of watchband 12 does not just need to adopt the metal pattern of the complex structure that uses for purpose of connecting, therefore, metal pattern than have earlier for cheaply.

In addition, above-mentioned the 1st embodiment and the 2nd embodiment are combined, a side who separates the end face of part 3,13 in watchcase 1,11 and being connected of watchband 2,12 makes recess, and 01 sides make protuberance and also are fine.

By above explanation as seen, in the watchband syndeton according to watchcase of the present invention, between watchcase and watchband, separate part by intermediary, make the bed knife stabilization of watchcase and watchband, metal pattern is also oversimplified and is cheap, and a large amount of the use in the resin manifests metal in the making of table, make resin and metal mixedization, obtain unprecedented feeling of high class and design variation.

Claims (8)

1, the syndeton of a kind of watchcase and watchband, in at least a portion is to connect the watchband that is shaped with soft synthetic resin integratedly on the watchcase that is shaped with hard resin, feature of the present invention is, between above-mentioned watchcase and watchband, the part that intermediary surface portion is the metal part that separates of usefulness that exposes, this separates and is formed with the projection that is embedded in above-mentioned watchcase and the above-mentioned watchband on the part, or is formed with the recess of burying underground for above-mentioned watchcase and above-mentioned watchband.

2,, it is characterized by separating on the projection of part to form and prevent the part that gets loose with through hole as the syndeton of watchcase in the claim 1 and watchband.

3,, it is characterized by separating on the projection of part to form and prevent the part that gets loose with scarfing as the syndeton of watchcase in the claim 1 and watchband.

4,, it is characterized by separating and be formed with the hook-shaped part that gets loose that prevents on the projection of part as the syndeton of watchcase in the claim 1 and watchband.

5,, it is characterized by the projection that separates part and interlace to turn up the soil from the end face that is connected with watchcase, watchband and protrude round about as the syndeton of watchcase in the claim 1 and watchband.

6,, it is characterized by separating on the recess of part and form the dovetail groove that pulls out towards moving back of interior expansion as the syndeton of watchcase in the claim 1 and watchband.

7, as the syndeton of watchcase in the claim 1 and watchband, a side who it is characterized by at the end face that is connected with watchcase, watchband that separates part is provided with recess, and 01 sides are provided with projection.

8,, it is characterized by separating on the surface of part and apply decoration as the syndeton of watchcase in the claim 1 and watchband.

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