CN1085329A - Watch case - Google Patents

Abstract

The watchcase of sealing comprises glass (1) and lid (2), they compress with clamp (4), clamp is the connection lug of watchband, each clamp (4) has two branches (5,5 ') and intermediate projections portion (6), its direction is towards the watchcase center section, and a branch (5) interacts with glass (1), another interacts with lid (2), and intermediate projections portion (6) is placed in the seat (8) of lid (2) and glass (1) junction making.Securing member is mounted to and makes its force direction become ° angle, 0＜α≤90 with the watchband direction of pull.Securing member can be a screw, pin (9) or split pin, and they are mounted to vertical with the watchcase plane.

Description

Watch case

The invention belongs to instrument manufacturing, particularly clock and watch, relate to watch case or rather.

Known a kind of watch case comprises glass, and bonnet and the girdle between them (European patent, A.0372143).The connection lug of watchband by the screw partial fixing relative together with diameter on the girdle, each connects lug and comprises two clamps of passing a bridge and connecting with arc.Bonnet links to each other with girdle with being threaded, and glass utilizes clamp to be pressed on four points of girdle, and each clamp has the branch of two directions towards the watchcase core.

Known watchcase structure is quite complicated, constitutes by many parts, and blow-by.Back one situation is owing to do not have in known watchcase structure to consider that the possibility of laying packing washer in the place that glass contacts with girdle causes.The osculatory of these parts passes through along the outside surface of watchcase, and at this moment glass itself in place, clamp branch place, has only four some places to compress girdle.

Also knowing has a kind of watch case, and it comprises upper and lower two parts, is compressed by clamp on equidirectional each other, and clamp is exactly the connection lug of watchband, and they link to each other with watchcase by securing member, and each clamp has two branches towards watchcase core direction.Each branch has a relative watchcase cross sectional planes plane inclined, and a branch of each clamp interacts with its clinoplane and watchcase upper face, and second branch is with surface interaction (Swiss Patent, the A of its clinoplane and watchcase bottom ₃, 671493).In addition, in known watchcase, between glass and bottom one bonnet girdle is arranged at an upper portion thereof, fixing with girdle by the clamp that lintel links to each other in couples with the screw that passes the lintel hole.Volution is like this configuration, and its axle is in the watchcase cross sectional planes, and with watchcase vertical symmetry plane parallel.

With above-described different, this watchcase seals, this is guaranteed by two ring washers, one of them ring washer is placed in the ring groove of girdle side surface, the surface interaction of ring groove and the special annular relief that for this reason is provided with on the week of garden, top, second ring washer-be placed in the similar groove of bottom.

In the watchcase assembling process, when along center line, when the girdle direction moved glass and bonnet, packing washer should be radially moves to the groove direction of girdle, when when there is responsive to axial force the annular relief aspect, guarantee that this point is very complicated.This just makes the shape of packing washer must do complicatedly, and its physical dimension and shape will have the repeatability of height.

Securing member-screw arrangement is come down to axis arranged along watchband in the watchcase cross sectional planes, do not get rid of the possibility of watchcase loss of seal in the watchcase use, this is owing to often there is the pulling force of watchband to act on cause on the head of screw.

Basic task of the present invention is to create a kind of watch case, and the structure of its clamp and fixture thereof has been got rid of the ruined possibility of tightness of case under the effect of watchband pulling force, does not cause whole watchcase structure complicated simultaneously.

This task is to solve like this: watch case comprises, following two parts, compressed by clamp along a direction each other, clamp constitutes the connection lug of watchband, they are connected with watchcase with securing member, each clamp has two branches towards the watchcase core, there is a relative watchcase cross sectional planes plane inclined in each branch, and a branch interacts with these clinoplanes and upper face, and second branch interacts with the lower surface of watchcase first, according to the present invention, each clamp all has a center projections portion between branch, its direction and branch point to the same side, in watchcase, in top and junction, bottom, work has the seat identical with boss shapes, and these lug bosses just are configured in these seats, and the position that the while securing member is laid makes its snap-in force become O＜α≤90 ° angle with the watchband direction of pull.

In order to improve the sealing of watchcase, be preferably between the interactive surfaces of watchcase top and the bottom, be sidelong in watchcase chamber one and put a ring seal packing ring.

Preferably use pin or screw as securing member, its direction is perpendicular to the watchcase cross sectional planes, and each securing member simultaneously with the upper and lower of watchcase, and corresponding intermediate projections portion interacts.

Watchcase can be made and comprise two forms that are positioned at the clamp of watchcase opposite end, in the bottom of each, make a groove of widening under the intermediate projections portion, and each securing member can make to become the form of continuity of intermediate projections portion of the fork form of resilient material system, the fork end opens, be pressed in the seat add in the wide groove.

In another program, watchcase can make and comprise four clamps, these clamps are placed on the relative direction of watchcase in couples, and each couples together rigidly to all using the watchband stationary shaft, the seat that is positioned at this moment under the clamp intermediate projections portion should become ± the β angle O＜β≤90 ° with watchcase vertical symmetry plane.

The watch case structure of making according to the present invention is very simple, and it constitutes a top (glass) and bottom (lid) by two parts, and they are connected to each other directly, and do not have girdle.

According to the present invention, the manufacturing of part and the assembly technology of watchcase all do not have any difficulty, because the seat under the most complicated processing part-clamp intermediate projections portion has open surface on the interaction plane of two part-glass and lid, this makes Milling Process be easy to carry out, and can make the groove of suitable complicated shape from the teeth outwards, the wide variety of shapes of the seat of the application's proposition is satisfied in assurance, can also make the seat that elongates shape on the direction that becomes the β angle with the vertical symmetry plane.

As for the sealing that guarantees structure, according to the present invention, even do not have under the packing washer situation, as long as when processed glass and the mutual pressing surface of lid (the perhaps making-up unit of forming by glass and lid), guarantee its surface in contact processing smooth finish enough high (under the condition of appropriate these surperficial respective material pairs of selection), make the chain link that impels these intermeshing intermolecular underfills in surface begin to work and also can guarantee the sealing of height.

Because the watchband direction of pull on fastener arrangement becomes its snap-in force direction and is added in clamp becomes the α angle, therefore in fact got rid of in use, because the possibility of the tightness of case that the effect of watchband power causes forfeiture.

Below, invention will be narrated with the explanation and the accompanying drawing of specific embodiment, according to the present invention, wherein:

Fig. 1 represents the top view of watch case, partly cut-away, and a connection lug of watchband roughly is expressed as the appearance with the watchcase disengaging;

Fig. 2 is the cross section enlarged drawing along II among Fig. 1-II line;

Fig. 3 is identical with Fig. 1, and only securing member is the scheme of elasticity fork-shaped formula;

Fig. 4 is identical with Fig. 1, for having the scheme of 4 clamps;

Fig. 5 is the enlarged drawing of A part among Fig. 4.

Fig. 1, the watch case shown in 2 is a garden shape, comprises top 1-glass, just is called glass 1 and bottom 1-lid later on, is called later on and covers 2, they are compressed by the clamp 4 that forms watchband connection lug (not illustrating among the figure) along planar annular 3 each other.Each clamp 4 has two branches 5,5 ' and intermediate projections portion 6 between them, and when these clamps 4 assemble a time-out with watchcase, their direction is towards the watchcase center section.Each branch 5,5 ' with respect to the watchcase cross sectional planes correspondingly all have a clinoplane 7,7 ', and branch 5 interacts with the outside surface of its clinoplane 7 with glass 1, and branch 5 ' with its clinoplane 7 ' with the outside surface interaction of lid 2.

In watchcase, the seat 8 of two relative configurations of diametric(al) is made to have in 3 glass 1 and lid 2 junctions along the plane, and its shape is identical with intermediate projections portion 6 shapes, during these lug bosses are just laid and are present.Clamp 4 is connected by securing member with watchcase, connects by eccentric pin 9 in the present circumstance.The direction of pin 9 is perpendicular to the watchcase cross sectional planes, and while and glass 1, and the intermediate projections portion 6 of clamp 4 and lid 2 interact.When each eccentric pin 9 is installed in glass 1 respectively, in the coaxial aperture 10,11,12 of lid 2 and intermediate projections portion 6 after, pin is rotated 90 ° around its longitudinal axis, this can make glass 1 and lid 2 more closely compress mutually.

In embodiment of the present invention, seat 8 makes a part on glass 1, and a part is in lid 2.These seats 8 also can make all in lid 2 bodies or in glass 1, and can only have an open outlet towards glass 1 and lid 2 interaction planes 3.

In addition, in this programme of device, can use screw or split pin as securing member, this is had additional move place with the designer when watchcase is carried out artistic decoration.

At glass 1 with cover between the 2 interactional surfaces, the direction in the watchcase chamber, in glass 1 and lid 2 bodies, do that annular bore hole 13,13 is arranged ', they correspondingly constitute the annular groove of placing packing washer 14.

Watch case scheme shown in Figure 3 is different with scheme shown in Figure 1, clamp 4 is connected with watchcase by making holistic securing member with intermediate projections portion 6, clamp is exactly the prolongation of these lug bosses, they are again to use resilient material simultaneously, for example spring steel is made, the fork 15 that end separates, fork are pressed in the groove of widening 16 that each bottom that is arranged in the seat below the intermediate projections portion 6 bores.

At Fig. 4, shown in 5 is in the another scheme according to watchcase of the present invention, and the connection lug of watchband is by a pair of clamp 17 separately, 17 ' and 18,18 ' constituting, it is rigidly connected mutually, so that by correspondingly for fixing watchband use spools 19,20, guarantee each to clamp in equally distributed power.In this structure, clamp 17,17 ' intermediate projections portion 22,22 ' under seat 21,21 ' correspondingly becomes ± the β angle with watchcase vertical symmetry plane 1-1, O＜β＜90 °, and, corresponding 21,21 of lug boss 22,22 ' be pressed in ' in.

General angle Selection equals 30-45 °.

Fig. 5 represents the enlarged drawing of axle 19 and clamp 17 ' fixation kit, as can be seen from Figure, give prominence to the clamp 17 outside watchcase, 17 ' end between anchorage force guarantee by compression spring 23, spring 23 is placed in axle 19 the chamber 24 and compresses pin 25, and pin 25 interacts with the wall of the groove 26 in its another terminal and the clamp 17 ' body.

Describe the structure that connects lug by the watchband of clamp 17,17 ' composition above in detail.Self-evident, connect lug and first lug is similar by second of clamp 18,18 ' composition.

In the device embodiment shown in Fig. 1～5, the top-glass 1 of watchcase is the form of single component, but it also may be a making-up unit of being made up of glass and lasso, and glass is pressed in the lasso to improve the reliability when using for a long time.

Fig. 1, the assembling of the watchcase shown in 2 is undertaken by following mode.With packing washer 14 be placed on cover 2 annular bore hole 13 ' in, and will cover 2 and 3 couple together along the plane with glass 1, at this moment the top of packing ring 14 is placed in the annular bore hole 13 of glass 1.Then, the intermediate projections portion 6 of clamp 4 is pushed in the seat 12 till run into carrying plane, at this moment the clinoplane 7,7 of clamp 4 ' assurances glass 1 with cover 2 and 3 closely compress along the plane.On this position, clamp 4 is fixed with respect to watchcase with the axis pin vertical with the watchcase cross sectional planes.Because the above-mentioned position of 9 on securing member pin, watchcase can be owing to acting on watchband pulling force on the watchcase cross sectional planes to the effect of clamp 4 and loss of seal.

In addition, be noted that in watchcase structure according to the present invention, when glass 1 compresses with lid 2, there is not thing can hinder at packing ring 14 when the watchcase cavity direction is out of shape, the moving radially of its sidewall, can use the packing ring of simple shape like this, its size is not had strict tolerance.

Watchcase shown in Figure 3 assembling can be similar to the above method carry out, have only a difference, promptly because the spring property of fork 15, clamp 4 being fixed in case block carried out after they are placed in the seat automatically.Simultaneously, because two ends that fork 15 separates have guaranteed fastening force to the pressure of groove 16 walls, the direction of this fastening force becomes the α angle with the direction of watchband pulling force, and this has just got rid of watchcase in use, causes the possibility of watchcase loss of seal under this power effect.

When the watchcase scheme shown in the wiring layout 4,5, with clamp 17,17 ' and 18,18 ' intermediate projections portion be pressed in the corresponding seat after, with regard to available axle 19,20 correspondingly in couples fixation clamp 17 and 17 ', 18 and 18 '.Since the supporting role of spring 23, clamp 17,17 ', 18,18 ' watchcase is firmly fixed relatively, has so just guaranteed that direction becomes the fastening force of (90+ β) degree with the watchband pulling force, its result can guarantee high-seal and reliability according to watchcase of the present invention.

Claims (5)

1, a kind of watch case, it comprises, following two parts (1,2), compress by clamp (4) in a direction each other, clamp (4) constitutes the connection bump portion of watchband, they are connected with watchcase with securing member, and each clamp has the branch (5,5 ') of both direction towards the watchcase center section, each branch has with respect to watchcase cross sectional planes plane inclined (7,7 '), a branch (5) utilizes the surface interaction on these clinoplanes (7,7 ') and watchcase top (1), and second branch (5 ')-with the surface interaction of the bottom (2) of watchcase, it is characterized in that each clamp (4) has intermediate projections portion (6), it is positioned at branch (5,5 ') between, it and branch (5,5 ') are towards same direction, in watchcase, the junction of (1 and 2) does that seat (8) is arranged in top and the bottom, its shape is identical with intermediate projections portion (6), and intermediate projections portion (6) just is placed in the seat, and securing member is installed in its snap-in force becomes ° angle, O＜α≤90 with the watchband direction of pull position simultaneously.

2, watchcase according to claim 1 is characterized in that the direction in the watchcase chamber is provided with ring seal packing ring (14) between the interactive surfaces of watchcase top and the bottom (1,2).

3, watchcase according to claim 1 and 2, it is characterized in that adopt pin (9) or screw as securing member, its direction is perpendicular to the watchcase cross sectional planes, and each securing member while, upper and lower part (1,2) and the corresponding intermediate projections portion (6) with watchcase interacted.

4, watchcase according to claim 1 and 2, it is characterized in that, it comprises two clamps (4) that are positioned at the relative both sides of watchcase, has the groove of widening (16) in each bottom that is positioned at the seat (8) under the intermediate projections portion (6), simultaneously, it is the prolongation of intermediate projections portion (6) that each securing member makes, and is made by resilient material, have end separately, compress the form that adds the fork (15) in the wide groove (16) of present (8).

5, watchcase according to claim 1 and 2 is characterized in that, it comprises four clamps (17,17 ' and 18,18 '), they are configured in the relative both sides of watchcase in couples, and all use watchband stationary shaft (19 each centering, 20) be rigidly connected to together, simultaneously, the seat (21 under the clamp intermediate projections portion (22,22 '), 21 ') direction become ± the β angle O＜β＜90 ° with the vertical symmetry plane of watchcase.

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