CN1811619A

CN1811619A - Timepiece movement holding structure and timepiece

Info

Publication number: CN1811619A
Application number: CN 200610002929
Authority: CN
Inventors: 新井宏幸; 大盐匠
Original assignee: Seiko Epson Corp
Current assignee: Seiko Epson Corp
Priority date: 2005-01-26
Filing date: 2006-01-25
Publication date: 2006-08-02
Anticipated expiration: 2026-01-25
Also published as: CN100476638C

Abstract

It is an object of the present invention to provide a timepiece movement holding structure and a timepiece which make it possible to realize a design that is elongated in the longitudinal direction or the lateral direction. The timepiece movement holding structure comprises a first casing frame which holds the end part of the movement in the 6 o'clock direction, and a second casing frame which holds the end part of the movement in the 12 o'clock direction. The widths of the first casing frame and second casing frame in the 3 o'clock to 9 o'clock direction are set substantially the same as the width of the movement in the 3 o'clock to 9 o'clock direction. These casing frames and are disposed substantially within the width of the movement in the 3 o'clock to 9 o'clock direction, and the movement is held in the plane direction between the interior-forming case body portions through of the case body and the first casing frame and second casing frame. The movement is held in the sectional direction between the case body and back cover as a result of the first casing frame and second casing frame being pressed in the sectional direction of the movement by an inside main surface or back cover fixing parts provided to the back cover.

Description

The movement holding structure and the table of table

Technical field

The movement holding structure that the present invention relates to show, specifically, relate to can the realization table 3 point-9 direction or the movement holding structure and the table of the table of the narrower design of the width of 12 point-6 direction.

Background technology

The movement holding structure of existing following table has been well-known (for example: with reference to patent documentation 1), promptly, in the structure that by the center of making by synthetic resin movement is fixed on the watchcase, this center forms along the in-plane end of movement in full week, and along the flange part that is formed with flange shape extension full week and its peripheral part, also be formed with the spring portion that is used for keeping along the vertical direction the movement holding section of movement and extends downwards, in spring portion, be provided with the spatial portion that plays that mitigation causes by external force, and keep movement by the elastic force of this spring portion to the effect of the impact of center.

[patent documentation 1] Japan is real open flat 6-86094 communique (the 5th page, Fig. 1, Fig. 6)

In such patent documentation 1, there is following such problem, owing to being for the center that keeps movement to be provided with, so realizing that aspect the small-sized housing profile, just the occupied part of flange part of center will make housing become big along the forming in full week of movement.Particularly, realize comparing with the length of 6 point-12 direction, the design of the lengthwise that the width of 3 point-9 direction is narrower is impossible.

And, even movement is being accommodated in the housing, and center is given on the bonnet of elastic force, from the outstanding bonnet fixed part that is provided with of the inboard first type surface of bonnet, generally also form along full week in the outside of full week of center.Because this bonnet fixed part is arranged, so will realize that the table of described lengthwise design is difficult.

Summary of the invention

The objective of the invention is to solve described problem, the movement holding structure and the table of the table of the narrow design of growing crosswise of the width of the design of the narrow lengthwise of the width that can realize 3 point-9 direction or 12 point-6 is provided.

The movement holding structure of table of the present invention between the main body and bonnet of watchcase, keeps movement with center, it is characterized in that having: the 1st center that the end of the 1st direction of described movement is kept; And to the 2nd center that keeps with the rightabout end of described the 1st direction of described movement, described the 1st center and described the 2nd center are configured in the outside of end of described the 1st direction of described movement respectively, and within the general width of described the 2nd direction of described movement, keep described movement.

At this, for example, as 6 point-12 direction of the 1st direction indication table, as the 2nd direction indication 3 point-9 direction.According to this invention, to be used to keep the center of movement to be separated into the 1st center and the 2nd center, because these the 1st centers and the 2nd center are configured within the width (width of 3 point-9 direction or 12 point-6 direction) of movement, there is not the connecting portion that connects the 1st center and the 2nd center in the both sides or a direction both sides, 12 point-6 of 3 point-9 of a movement direction.Therefore, 3 point-9 direction that can reduce to show or the width of 12 point-6 direction provide lengthwise or the table of the exquisiteness of growing crosswise design.

In the structure of the present invention in addition, described the 1st center and described the 2nd center with the 2nd direction of described the 1st direction quadrature on width setup separately be roughly the same with the width of described movement on described the 2nd direction, in the main body of described main body between shape portion and described the 1st center and described the 2nd center, carry out the maintenance of the in-plane of described movement, between described main body and described bonnet, by being arranged on bonnet fixed part or the inboard first type surface on the described bonnet, described the 1st center and described the 2nd center are pushed to the cross-wise direction of described movement, thus, the cross-wise direction that keeps described movement.

According to this structure; the in-plane and the cross-wise direction of the 1st center and each self-sustaining movement of the 2nd center are so even be separated into the structure of the 1st center and the 2nd center, also can carry out the maintenance of movement reliably; with respect to impulsive force, can protect movement reliably from off-balancesheet portion.

In addition, in the structure of the present invention, the preferred setting: the 1st direction of described movement and with any one of the plane of described the 1st side end in the opposite direction or end face on the rotation stopper section that forms, and be formed on rotation stopper section corresponding, that on any one of described the 1st center and the 2nd center, form, rotation stopper section on the described movement, limit of the rotation of described movement at in-plane.

So-called herein rotation stopper section for example is provided with recess in the movement side, on the 1st, the 2nd center protuberance is set.

As mentioned above, even be separated into the structure of the 1st center and the 2nd center, owing to be provided with the rotation stopper section of movement, even so for the small-sized movement of the width of 3 point-9 direction lengthwise littler than the length of 6 point-12 direction, or at the width of the 6 point-12 direction small-sized movement of growing crosswise littler than the length of 3 point-9 direction, perhaps Yuan Xing small-sized movement, can prevent that all movement from rotating at in-plane, the narrow design of width of 3 point-9 direction or 12 point-6 direction can be realized, the maintenance of movement can also be carried out reliably simultaneously.

In structure of the present invention, preferred described the 1st center and described the 2nd center have the movement movement limiting portion, this movement movement limiting portion is connected on the lateral surface in described the 2nd direction width of described movement, limit described movement with respect to this center to described the 1st direction and described the 2nd direction moving of any one direction at least.According to this structure,, can suppress movement rocking reliably with respect to the 1st center and the 2nd center by described movement movement limiting portion.

At this moment, described the 1st center and described the 2nd center, preferably have the teat in the shape portion in the main body that is arranged near the of described restrictions and is connected to described main body, this teat is connected on the wall of shape portion in the described main body, limits this center moving with respect to described main body.According to this structure, by described teat, near movement, limit the 1st center and the 2nd center with respect to the moving of main body, so can suppress rocking of each center reliably, suppress rocking of movement more reliably.

In addition, according to structure of the present invention, preferably by the part of the bonnet fixed part of described bonnet is removed, it is roughly the same that the width of described the 2nd direction of described bonnet fixed part is set to the width of described the 2nd direction of described movement.

According to this structure, because only form the bonnet fixed part on the 1st direction of table, and the 2nd direction side is removed, so compare with the described prior art that forms the bonnet fixed part around full week of movement, can make the narrowed width of table the 1 direction.

And the width of the width of described the 2nd direction of described the 1st center and described the 2nd center and described the 2nd direction of described bonnet fixed part is preferably set to the width of described the 2nd direction of described movement roughly the same.

So because with the 1st center, the 2nd center and the bonnet fixed part that on bonnet, forms, be set at the width of the 2nd direction of movement roughly the same, so the table of the exquisiteness design of the narrow lengthwise of the width of the 2nd direction can be provided.

Further, table of the present invention is characterised in that the movement holding structure with described table is a feature of the present invention.According to this invention, can provide lengthwise or the table of the exquisiteness of growing crosswise design.

Description of drawings

Fig. 1 is the stereographic map of expression off-balancesheet shape of the present invention.

Fig. 2 is the exploded perspective view of the table body of expression embodiment of the present invention 1.

Fig. 3 is the amplification stereogram of movement, the 1st center, the 2nd center and bonnet.

Fig. 4 is the vertical view of expression table body structure.

Fig. 5 (a) is the fragmentary cross-sectional view of the movement holding structure of expression table.(b) expression is from the fragmentary cross-sectional view of the movement fixed part of the 1st center of the arrow A direction observation of Fig. 4.

Fig. 6 is the fragmentary cross-sectional view of structure of 3 directions of expression table body.

Fig. 7 is the figure of the comparative example of expression table of the present invention and existing table.

Fig. 8 is that table is the fragmentary cross-sectional view of movement holding structure of the table of embodiment of the present invention 2.

Fig. 9 is the fragmentary cross-sectional view of movement holding structure of the table of expression embodiment of the present invention 3.

The 10----table

20----shows body

The 50----main body

Shape portion in 51A～51D----main body

The 60----movement

The 70----bonnet

90----the 1st center

95----the 2nd center

71----bonnet fixed part

The inboard first type surface of 72----bonnet

Embodiment

Below, with reference to the accompanying drawings embodiments of the present invention are described.

Figure 1 shows that the stereographic map of off-balancesheet shape of the present invention.Fig. 2～Fig. 7 represents the movement holding structure of the table of embodiments of the present invention 1.Figure 8 shows that the movement holding structure of embodiment 2, Fig. 9 is the movement holding structure of embodiment 3.

(embodiment 1)

Among Fig. 1, table 10 of the present invention has: time showing portion and movement are contained in table body 20 in the housing; And be used for table body 20 is worn over watchband 30 on the wrist.In addition, the clockwork spring that also has the levelling time turns round 40.

This table 10 has exemplified with the length as 12 point-6 direction of the 1st direction and has compared, and as the narrower lengthwise design of width of 3 point-9 direction of the 2nd direction, for example, as the mini table that the women uses, is the design that is popular.

Then, the structure that realizes the table that lengthwise of the present invention designs is described with reference to Fig. 2～Fig. 4.

Figure 2 shows that the exploded perspective view of table body 20.This table body 20 has the main body 50 that constitutes watchcase, is provided with the essentially rectangular shaped aperture portion of up/down perforation on this main body 50.Dispose hornbook 24 and movement 60 stackedly on the peristome 50A of this main body 50, and dispose the 1st center 90 and the 2nd center 95 around movement 60, the back is by bonnet 70 sealings, and the surface is by perspex 27 sealings.In addition, described movement 60 has the tube gear 41 and second gear 42 by internal drive machine driven in rotation, each

gear

41,42 runs through the center pit 24A of hornbook 24 and stretches out to the top of hornbook 24, hour hands 25 are installed on tube gear 41, minute hand 26 is installed on second gear 42, is come express time by these time showing pins 25,26.And clockwork spring is turned round 40 and is inserted the logical through hole 50B that is formed on the main body 50, is connected with the winding mechanism (volume is true) (not shown) of movement 60.

In addition, in the present embodiment, exemplified table 10, but also can be widely used in carrying out on other the demonstration pin or the table of calendar demonstration, monthly calendar demonstration etc. such as second hand or 24 pins with hour hands 25 and minute hand 26.

Fig. 3 is the amplification stereogram of movement the 60, the 1st center the 90, the 2nd center 95 and bonnet 70, and Fig. 4 is a state of observing table body 20 from time showing portion direction, and Fig. 5 (a) is depicted as the sectional view of 6 point-12 direction of table body 20.In addition, in Fig. 4, for making explanation understandable, be depicted as the form of removing behind perspex 27, hour hands 25, minute hand 26, the hornbook 24.

As shown in Figure 4, the shape of the lengthwise that the length that main body 50 has 12 point-6 direction is longer than the width of 3 point-9 direction shown in Fig. 5 (a), is formed with in the inboard: the medial surface 54 that is used to limit the time showing face of hornbook 24; Be used to keep the hornbook of hornbook 24 to bear portion 55; And restriction movement 60 51A～51D of shape portion in the main body that in-plane moves.

As shown in Figure 4, the 51A of shape portion is provided with for the position of limiting 3 directions in the main body, and 51B is provided with for the position of limiting 9 directions, and 51C is provided with for the position of limiting 6 directions, and 51D is provided with for the position of limiting 12 directions.Form roughly rectangular space (peristome 50A) by the 51A of shape portion in the main body～51D, the movement 60 of lengthwise is incorporated in this space.

On the interior 51C of shape portion of main body, be equipped with the bonnet that is used for bonnet 70 is fixed on the main body 50 and fix 2 place's recesses of using groove 52A, 52B, in the main body relative on the 51D of shape portion with the 51C of shape portion in the main body, and with the fixing 2 place's recesses that are equipped with the fixing usefulness of bonnet groove 52C, 52D on the relative position of groove 52A, 52B of bonnet.

As shown in Figure 4, movement 60 has the substantially elliptical shape along with the lengthwise that narrows down gradually towards 6 directions and 12 direction width from approximate centre, 6 sides at this movement 60 dispose the 1st center 90,12 sides at movement 60 dispose the 2nd center 95, these

centers

90,95 form roughly concavity (コ font), with the both sides (6 sides and 12 sides) of clamping movement 60.

At this, because the 1st center 90 is relative with the 2nd center 95 3 point-9 straight line that couples together is roughly formed symmetric shape, so in the following description, the 1st center 90 of 6 sides is elaborated, omit the explanation of the 2nd center 95.As shown in Figure 3 and Figure 4, the 1st center 90 forms the roughly horseshoe-shape (matrix shape) that the profile portion 92 by the movement guide part (movement movement limiting portion) 91 of the end face (lateral surface) of 6 directions that are connected to movement 60 and main body 50 sides is surrounded, and makes by rubber-like synthetic resin is carried out injection molded.

More particularly, 6 positions of movement 60 in 91 clampings of movement guide part, from about 4 in the scope of about 8 positions, be connected on the end face (lateral surface) of movement 60, in other words, with width (breadth extreme) LM of movement 60 within the end face integral body of 6 sides connect.Thus, both ends 91L, 91R by movement guide part 91 clamp movement 60 in 3 point-9 direction, limit movement 60 with respect to move (what is called rock) of the 1st center 90 to 3 point-9 direction and 6 directions.

And, on movement guide part 91, being formed with movement rotation stopper section 91A, the step-like movement fixed part 61A (with reference to Fig. 5) on the end of this movement rotation stopper section 91A and 6 directions that are arranged on movement 60 connects.This step-like movement fixed part 61A on the end of 6 directions of movement 60, along with 3 point-9 straight line that the straight line that couples together parallels is formed.Like this, by the movement on the movement guide part 91 rotation stopper section 91A is connected on the movement fixed part 61A of straight line, and restriction movement 60 with respect to the 1st center 90 to the moving of 6 directions, limit the rotation of movement 60 simultaneously with respect to the 1st center 90.

Is movement stationary plane 63 (with reference to Fig. 3, Fig. 4) from this movement fixed part 61A towards the plane that periphery forms.On the end of 12 directions of movement 60, also form same movement fixed part and movement stationary plane 63 (representing with profile line among Fig. 4).

And, be on the periphery of the 1st center 90 in the flange shape profile portion 92 of stretching out, be formed with at outstanding fixedly protuberance 92C of the outer circumferential side of 6 sides and fixing protuberance 92D, at 9 side-prominent fixedly protuberance 92A and 3 side-prominent fixedly protuberance 92B.At this, fixedly protuberance (teat) 92A, 92B are arranged on thin-walled portion on 9 directions of the 1st center 90 and 3 directions for these, fixedly protuberance (teat) 92C, 92D, be to open in 6 direction sky of the 1st center 90 to be spaced apart and arranged in thin-walled portion, thus, be arranged on the rear side of the movement guide part 91 of the 1st center 90, and near movement guide part 91 position.On the 2nd center 95, also be formed with and these fixing suitable fixedly protuberances of protuberance 92A～92D.

These fixedly protuberance 92A～92D movement 60 is clipped in when assembling between the 1st center 90 and the 2nd center 95, its size is set in the main body of main body 50 has the magnitude of interference between the 51A～51D of shape portion, thereby have movement 60 is remained the function that can not move at in-plane.

Further, as shown in Figure 4, in the present embodiment, on the 2nd center 95, form the movement rotation stopper section 95A of groove shape.On movement 60 also being formed with movement rotation stopper section with the corresponding position of movement rotation stopper section 95A, shape, thereby prevent the rotation of movement 60 more reliably.

In addition, this movement rotation stopper section 95A also can be arranged on the 1st center 90, also can be arranged on two sides, and, when the 1st center 90 and the 2nd center 95 are made asymmetrical shape, by the 1st center 90 and the 2nd center 95 being made the parts of different colours, can prevent the assembly defect of

center

90,95, assembling operation is carried out easily.

The recess that can stop rotation in the bonnet side surface setting of movement 60, corresponding with this shape, movement rotation stopper section 95A can adopt lift-launch such shape on the movement surface, the recess of incision-like can also be set at the movement end face, and movement rotation stopper section 95A adopts and the corresponding shape of this recess.

On the 1st center 90,, on cross-wise direction, be provided with two places to the side-prominent movement fixed

part

93,94 of bonnet 70 along movement guide part 91.Shown in Fig. 5 (a) and (b), in these movement fixed

part

93,94 central authorities separately, form fixing with

protuberance

93A, 94A, make this fixing movement stationary plane 63 that bears portion's 55 thruster press cores 60 with

protuberance

93A, 94A by the inboard first type surface 72 of bonnet 70 to the hornbook of main body 50, limit the position of cross-wise direction, movement 60 is kept.

In addition, remove fixedly protuberance 92A, 92B (not annotating symbol in the 2nd center 95), the 1st center 90 and the 2nd center 95 are little than the width of 3 point-9 direction of movement 60 at the width setups of 3-9 point direction jointly, can not protrude with respect to the profile of movement 60.

The profile of bonnet 70 is made in the width of the 3 point-9 direction roughly rectangle slightly littler than the width of main body 50, is formed by metals such as stainless steels.As shown in Figure 3, be formed on the outstanding bonnet fixed part 71 of cross-wise direction in 6 sides and 12 sides of bonnet 70, cut at 3 and 9 these bonnet fixed parts 71 of side.On this bonnet fixed part 71, fixing the correspondence position of using groove 52A～52D with the bonnet of being located on the described main body 50, it is fixing with jut 71A～71D to form bonnet, and bonnet 70 is fixed on the main body 50.

Then, with reference to Fig. 5 the maintenance structure and the maintenance method of movement 60 are elaborated again.Because table body 20 is roughly symmetric figure with 3 point-9 straight line that couples together that will show, so be that example describes with 6 sides.

Fig. 5 (b) is depicted as from the fragmentary cross-sectional view of the movement fixed part 94 of the 1st center 90 of the arrow A direction observation of Fig. 4.In Fig. 5 (a) and (b), movement 60 is installed in the main body 50 with the state that literal version 24 has been installed.Under this state, movement 60 can move in main body 50 together with hornbook 24.

Then, the 1st center 90 and the 2nd center 95 are installed.The movement guide part 91 of the 1st center 90 is installed, the movement fixed part 61A of itself and movement 60 is connected.At this moment, fixedly protuberance 92A～92D because and be set to the relation of the magnitude of interference between the 51C of shape portion in the main body of main body 50, so be extruded, thereby restriction movement 60 moving at in-plane.

On the 1st center 90, be formed on the outstanding movement fixed

part

93,94 of cross-wise direction, and on them, (represent) to be provided with fixing among the figure at downside with

protuberance

93A, 94A, when being installed in bonnet 70 on the main body 50, be urged, and the movement stationary plane 63 of pushing movement 60, and the hornbook of main body 50 bear between the portion 55 movement 60 is fixing by hornbook 24.

Be extruded with bonnet fixed part 71 on bonnet 70, it is fixing with jut 71A～71D to be formed with bonnet on this bonnet fixed part 71.Because these bonnets are fixing outstanding laterally with jut 71A～71D 51C of shape portion in the main body, so when being installed to bonnet 70 on the main body 50, bonnet fixed part 71 deflection to the inside, in that to arrive bonnet fixing during with groove 52A～52D, bonnet is fixing fixing with in groove 52A～52D with jut 71A～71D embedding bonnet, and bonnet 70 is fixed on the main body 50.

On the composition surface of main body 50 peripheries and bonnet 70, along main body 50 be provided with sealing gasket mounting groove 53 full week, in sealing pad mounting groove 53, sealing gasket 80 is installed.Periphery at bonnet 70 is provided with flange shape bonnet circumference 73, pushing sealing gasket 80 when bonnet 70 is installed.Thus, bonnet 70 can be limited in the moving of cross-wise direction, the water proofing property of body 20 can be guaranteed to show by sealing gasket 80.

In addition, sealing pad mounting groove can be arranged on the bonnet 70, when being arranged on the sealing gasket mounting groove on the bonnet 70, just the sealing gasket mounting groove is not arranged on the main body 50 and the part of saving, and just can make the thickness attenuation of main body 50, can make table 10 slimming.

With reference to Fig. 5 (b) structure of the movement fixed part 94 of the 1st center 90 is further described.In Fig. 5 (b), on the movement fixed part 94 that is formed at the 1st center 90, (be the below among the figure) and be formed with the fixing protuberance 94A that uses, and, offer cushion hole 94C in the centre, when being installed in bonnet 70 on the main body 50, fixing be urged (among the figure, moving to position shown in the solid line from position shown in the dotted line) with the inboard first type surface 72 of protuberance 94A by bonnet 70, cushion hole 94C produces distortion.Produce distortion by this cushion hole 94C, fix movement 60, at this moment, form fixing stage portion 94B, be configured to not contact with bonnet 70 with protuberance 94A by the elasticity of movement fixed part 94.

Movement fixed part 94 is made by the rubber-like material, and, because stage portion 94B forms the beam shape, so also can keep the fixing function of movement even install and remove bonnet 70, the 1 centers 90 repeatedly.To utilize the center of the flexible fastening movement of center to be called the elasticity center like this.

Then, describe with reference to the structure of accompanying drawing 3 point-9 direction of the table body 20 of present embodiment.

Figure 6 shows that the fragmentary cross-sectional view of 3 direction structures of the table body of present embodiment.Because the structure of 9 directions is identical with the structure of 3 directions, the Therefore, omited explanation, adopt identical symbol to describe with Fig. 4, Fig. 5, do not have the 1st center the 90, the 2nd center 95 that is had on Fig. 4,12 point-6 direction shown in Figure 5 on 3 directions of the table body 20 in Fig. 6.The bonnet that also is not arranged on the bonnet 70 is fixing with groove 52A～52D.

Therefore, 3 directions at the table body, the 51A of shape portion (with reference to Fig. 4) can be arranged on the position that the end with movement 60 connects in the main body of 3 sides, the width of promptly showing 3 point-9 direction of body 20 can be the size that adds the width of main body 50 on the width of 3 point-9 of movement 60 direction, also is identical relation in 9 directions.

In addition, turn round on 40 at clockwork spring, fixing figure does not upward have the volume of demonstration true, and the time of can carrying out is adjusted, but owing to be well-known structure, so omit its explanation.

Even on 3 and 9 directions, the sealing gasket mounting groove 53 on shell 50 forms continuously from 12 point-6 direction, and sealing gasket 80 is installed, and pushes by bonnet circumference 73.

Therefore, according to described embodiment 1, be used in and keep the center of movement 60 to be separated into the 1st center 90 and the 2nd center 95, direction both sides, 3 point-9 at movement 60, because

center

90,95 is configured within the width LM of movement 60 (with reference to Fig. 4) separately, so there is not the connecting portion that connects the 1st center 90 and the 2nd center 95 in a direction both sides, 3 point-9 of movement 60.Therefore, along the epiphase ratio that center is set in full week of movement, can reduce the width of 3 point-9 direction, the table 10 of the exquisiteness design of lengthwise is provided with existing.In addition, in the width dimensions that makes table 10 can reach the scope of desired value, described

center

90,95 is positioned at beyond the width of movement 60, in a word, the allocation position of

center

90,95 mainly in the width of movement 60, also can comprise beyond the width.

Further, because in the bonnet fixed part 71 of bonnet 70, the part of 3 directions and 9 directions is removed (representing with double dot dash line and symbol 74 among the figure), compared to the described prior art of the movement fixed part that forms around full week of movement, can make the narrowed width of table 3 point-9 direction.

According to such structure, the 51A of shape portion, 51B can be near the positions to the end that contacts movement 60 in the main body of 3 directions and 9 directions, even in a narrow margin special-purpose movement of exploitation again, also can provide lengthwise and at the table of the narrow exquisiteness design of the width of 3 point-9 direction.

Figure 7 shows that the table 10 of present embodiment and the comparative example of existing table 100, in addition, for convenience of description, on this figure, omitted hornbook, and, the symbol identical with roughly the same structure employing represented.And on existing table 100, symbolization 120 is represented body, and symbolization 160 is represented center.

As shown in the drawing, as can be seen, the table body 20 of the table 10 of present embodiment is not owing to existing center in a direction both sides, 3 point-9 of movement 60, so can make its width L1 littler than the width L2 of the table body 120 of existing table 100.Specifically, when the width L2 of existing table 100 is 13.0mm, promptly use identical movement 60, the width L1 that also can make the table 10 of present embodiment is 11.3mm, and compared to existing table, its width approximately can narrow 1.7mm, in other words, width is reduced more than or equal to 10%.

For this reason, in the past,, the narrow housing (being equivalent to show body 20) that averages out with watchband can not be realized,, the design of bracelet-shaped table of the combination of narrow housing and watchband can be realized according to this structure with respect to this though watchband 30 is attenuated.

And; because the 1st center 90 and the 2nd center 95 keep the in-plane and the cross-wise direction of movement 60 respectively; even so be separated into the structure of the 1st center 90 and the 2nd center 95; also can carry out the maintenance of movement 60 reliably; for impulsive force, can protect movement 60 reliably from off-balancesheet portion.

And, because on the 1st center 90 and the 2nd center 95, the fixedly protuberance 92A～92D that connects with the wall of the 51A～51D of shape portion in the main body of this

center

90,95, be arranged on movement guide part 91 near, so near movement 60, can limit this

center

90,95 moving with respect to main body 50 by described fixedly protuberance 92A～92D, rocking of each

center

90,95 can be reliably suppressed, rocking of movement 60 can be suppressed more reliably.

Even be separated into the structure of the 1st center and the 2nd center, owing to be provided with movement rotation stopper section 91A, 95A as the rotation stopper section of movement 60, even so on the small-sized movement of lengthwise, even perhaps on the small-sized movement of circle, can prevent that all movement 60 from rotating at in-plane, when realizing some design that the direction width is narrow of 3 point-9, can keep movement reliably.

Because embodiment 1 is to be known as the elasticity elasticity center, that utilize center to fix the structure of movement,, has the effect of the reliability that improves the movement maintenance so can absorb the dimensional discrepancy of main body 50, bonnet 70 etc.

In addition, because center is divided into 2, so compared to the situation of using the monolithic devices center, can make the center miniaturization, and the generation of warpage when suppress being shaped, make easily and make the size management of product become simultaneously simple, make center all be close to movement 60 easily, can further suppress to rock.

On bonnet 70, owing to do not have bonnet fixed part 71 3 of bonnet 70 and 9 sides, so on remaining bonnet fixed part 71, produce elasticity, when improving the mounting or dismounting quality of bonnet 70, in this structure, owing on the volume true place, do not have bonnet fixed part 71, has the effect that the winding mechanism (volume is true) that does not need bonnet 70 moves back the smoothing processing of groove.

(embodiment 2)

Then embodiments of the present invention 2 are described with reference to accompanying drawing.Embodiment 2 has the feature of the simple shapeization that makes described elasticity center based on the technological thought of described embodiment 1.Describe with identical symbol with present embodiment 1 identical functions parts.

Figure 8 shows that the fragmentary cross-sectional view of movement holding structure of the table of present embodiment 2.In Fig. 8, the movement holding structure that has exemplified 6 directions describes.In Fig. 8, the 1st center 190 is provided with: be connected to the movement guide part 191A on the movement fixed part 61A of movement 60; Be flange shape outstanding profile portion 192; With fixedly protuberances 196 from the 192 outstanding settings of profile portion.Fixedly protuberance 196 is equivalent to fixedly protuberance 92C, the 92D shown in the described embodiment 1 (with reference to Fig. 4).

Identical with described embodiment 1, keep movement 60 by the 2nd center that does not show among the 1st center 190 and the figure, so that mobile on its in-plane main body 50 in.

The maintenance of the movement 60 on cross-wise direction can be by being arranged on the profile portion 192 of bonnet fixed part 71 pushings the 1st center 190 on the bonnet 70, and the movement stationary plane 63 that pushes movement 60 again carries out.At this, on the 1st center 190, there are not cushion hole 94C and the fixing protuberance 94A that uses as enforcement mode 1 (with reference to Fig. 5).It is characterized in that keeping movement 60 by bonnet 70 pushing profile portions 192.

The 2nd not shown center also is of similar shape, and keeps movement 60 with the structure identical with 6 directions.In addition, even the structure of such center, also can be to have sealing gasket 80 with the same structure of embodiment 1 (with reference to Fig. 5).

Therefore, in described embodiment 1 (with reference to Fig. 3, Fig. 4), be considered to owing to be provided with cushion hole 94C, and make mold for injection molding become the form of slip core rod, therefore, make the mold structure complexity.But according to embodiment 2, on the basis of the effect of embodiment 1, the 1st center 190 can utilize (also comprising the 2nd center that does not show among the figure) mold for injection molding of simple upper and lower mould opening structure, therefore can reduce cost.

(embodiment 3)

Then, with reference to accompanying drawing embodiments of the present invention 3 are described.Compare with embodiment 2 with described embodiment 1, embodiment 3 is characterised in that the fixed sturcture that makes 70 pairs of main bodys 50 of bonnet adopts thread fixing structure.For the 1st center, the 2nd center because with embodiment 1 (so, describe with identical symbol for the parts of identical function with reference to the identical omission explanation of Fig. 2～Fig. 6).

Figure 9 shows that the fragmentary cross-sectional view of movement holding structure of the table of present embodiment 3, on behalf of present embodiment, Fig. 9 exemplified the movement holding structure of 6 directions.Among Fig. 9, on main body 50, be provided with internal thread 56 from the bonnet direction.

Corner part 4 sides of main body 50 is provided with 4 internal threads 56, and bonnet 70 is roughly rectangles (with reference to Fig. 3) of substantially planar, is offering threaded hole 77 with described internal thread 56 corresponding positions.In addition, in the inboard of this threaded hole 77, the 51A～51D of shape portion and around the full gasket slot 76 that is provided with allly in the main body is equipped with cross sectional shape and is circular or semicircular sealing gasket 80 in sealing pad groove 76.The 1st center 90 and not shown the 2nd center are by (forming with reference to Fig. 2～Fig. 6) identical structure with described embodiment 1.

In addition, the sealing gasket mounting groove also can be arranged on main body 50 sides.

Bonnet 70 screws togather by 4 gib screws 98 and is fixed on the main body 50.At this moment, the inboard first type surface 72 by bonnet 70 pushes the 1st center 90 to cross-wise direction, and when keeping movement 60, pushing sealing gasket 80 is guaranteed the water proofing property of showing.

Thereby, according to described embodiment 3, because bonnet 70 can be by dull and stereotyped formation roughly, thus simple in structure and easy to manufacture, so can reduce cost.

Owing to screw togather by screw thread and to carry out the fixing of bonnet 70 and main body 50,,, can carry out the maintenance of movement 60 more reliably even the narrow mini table body of width of 3 point-9 also can improve bed knife so bed knife is higher.

Further, because sealing gasket 80 is installed in the gasket slot 76 that is formed at bonnet 70,, can further improve water resistance so be not easy to take place the dislocation of sealing gasket on in-plane.

In addition, in described embodiment 1～described embodiment 3, be that to liken to the width as 3 point-9 of the 2nd direction be that the little mode of length of 12 point-6 direction of the 1st direction is that example describes, but also can make the width of 12 point-6 direction littler than the width of 3 point-9 direction.At this moment, turn 90 degrees and can realize, so omit explanation by the structure shown in described embodiment 1～described embodiment 3 is revolved.

In addition, the present invention is not limited to described embodiment, and the distortion of carrying out in can reaching the object of the invention scope, improvement etc. are also contained in the present invention.

For example, in described embodiment 1 and embodiment 2, center is separated into the 1st center 90 and the 2nd center 95, but also can makes the 1st center 90 and the 2nd center 95 in 3 directions and 9 being connected to form one of direction.

So, suppose that the 1st center 90 and the 2nd center 95 are about the wide 0.2mm of being of the coupling part of 3 and 9 directions, can injection molded, if compare with described embodiment, though the width of 3 point-9 direction is to have broadened about 0.2mm, but can make center by an injection molded, simultaneously because formation is integrated, so have the effect that is assembled into easily on the table body.

Further,, be formed at bonnet fixed part 71 on the bonnet 70 and also adopt separated structures on 3 directions, 9 directions, make 3 directions and 9 structures that direction is continuous but also can adopt even on bonnet 70.

In such structure, though not shown, if but in advance the end of 3 directions of movement 60 and 9 directions is only removed the width of bonnet fixed part 71 of bonnet 70 and the part of height, the table body 20 that does not increase 3 point-9 a direction width then can be provided.And, if like this, then owing to bonnet fixed part 71 is to center on forming in full week of bonnet 70, thus can reinforce bonnet 70, and be difficult for producing distortion, therefore,, can also improve water resistance except carrying out the maintenance of movement 60 more reliably.

Therefore, according to described embodiment 1～embodiment 3, can provide the movement holding structure and the table of table of realizing the exquisiteness design of the lengthwise that the width of 3 point-9 direction is little with low cost.

Further,, increase the width of the 2nd direction (3 point-9 direction), the table of the little exquisiteness of the growing crosswise design of the width of 12 point-6 direction just can be provided by reducing the width of the 1st direction (12 point-6 direction).

Claims

1, a kind of movement holding structure of table between the main body and bonnet of watchcase, keeps movement with center, it is characterized in that having:

The 1st center that the end of the 1st direction of described movement is kept, and to the 2nd center that keeps with described the 1st side end in the opposite direction of described movement,

Described the 1st center and described the 2nd center be configured in respectively described movement described the 1st direction the end the outside and within the general width of the 2nd direction of described movement, keep described movement.

2, the movement holding structure of table according to claim 1 is characterized in that,

Described the 1st center and described the 2nd center with the 2nd direction of described the 1st direction quadrature on width setup separately be, roughly the same with the width of described movement on described the 2nd direction,

In the main body of described main body, between shape portion and described the 1st center and described the 2nd center, carry out the maintenance of the in-plane of described movement,

Between described main body and described bonnet, by being arranged on bonnet fixed part or the inboard first type surface on the described bonnet, described the 1st center and described the 2nd center are pushed to the cross-wise direction of described movement, thus, the cross-wise direction of described movement is kept.

3, the movement holding structure of table according to claim 1 is characterized in that,

Be provided with: the 1st direction of described movement and with any one of the plane of described the 1st side end in the opposite direction or end face on the rotation stopper section that forms, and be formed on rotation stopper section on the described movement corresponding, be formed on the rotation stopper section on any one of described the 1st center and the 2nd center;

To limit of the rotation of described movement at in-plane.

4, the movement holding structure of table according to claim 1 is characterized in that,

Described the 1st center and described the 2nd center have the movement movement limiting portion, this movement movement limiting portion is connected on the lateral surface in described the 2nd direction width of described movement, limit described movement with respect to this center to described the 1st direction and described the 2nd direction moving of any one direction at least.

5, the movement holding structure of table according to claim 4 is characterized in that,

Described the 1st center and described the 2nd center, has the teat in the shape portion in the main body that is arranged near the of described restrictions and is connected to described main body, this teat is connected on the wall of shape portion in the described main body, limits this center moving with respect to described main body.

6, the movement holding structure of table according to claim 1 is characterized in that,

By the part of the bonnet fixed part of described bonnet is removed, be roughly the same with the width of described the 2nd direction of described movement with the width setup of described the 2nd direction of described bonnet fixed part.

7, according to the movement holding structure of any one described table in the claim 1～6, it is characterized in that,

The width of the width of described the 2nd direction of described the 1st center and described the 2nd center and described the 2nd direction of described bonnet fixed part is set to the width of described the 2nd direction of described movement roughly the same.

8, a kind of table is characterized in that, has the movement holding structure of any one described table in the claim 1～7.