CN201212941Y

CN201212941Y - Barrel mechanism

Info

Publication number: CN201212941Y
Application number: CNU200820075102XU
Authority: CN
Inventors: 耿力军; 马静
Original assignee: Tianjin Seagull Watch Group Co Ltd
Current assignee: Tianjin Seagull Watch Group Co Ltd
Priority date: 2008-06-23
Filing date: 2008-06-23
Publication date: 2009-03-25
Anticipated expiration: 2018-06-23

Abstract

The utility model discloses a barrel mechanism which comprises a barrel, a barrel driving wheel and a bolt. The bottom face of the barrel is provided with a bolt hole and is buckled with a bridge foot, a bridge foot hole and a bolt hole are arranged on the barrel driving wheel, the center of the barrel driving wheel is also provided with a through hole, the barrel driving wheel is axially positioned on the barrel through a bridge foot shaft, the bolt passes through the bolt holes on the barrel and the barrel driving wheel, and the barrel driving wheel is combined and fixed on the bottom face of the barrel. The utility model has the advantages that because the barrel and the barrel driving wheel are independent parts, the diameter of the barrel is increased, the stored energy of clockwork springs is furthest increased, and the travel time of calibers is prolonged; especially, the processing manufacturability of the barrel driving wheel is good, thereby the barrel mechanism is more suitable for the batch processing, and the production efficiency can be effectively improved.

Description

The bar case structure

Technical field

The utility model relates to a kind of wrist-watch parts, particularly relates to the bar case structure in a kind of wrist-watch.

Background technology

The power system of wrist-watch derives from barrel, what of clockwork spring storage power are the size of barrel determined, so when the design mechanical watch, make the clockwork spring in the barrel store more elastic potential energy, when the prolongation wrist-watch is walked, will in limited space, obtain bigger barrel, make clockwork spring that enough big space be arranged, so that strengthen its effective number of effective coils, increase the clockwork spring stored energy, when the prolongation wrist-watch is walked.

Fig. 1 is a barrel wheel construction perspective view in the prior art.

As shown in Figure 1, be provided with the gear teeth on the outer wall of the barrel of timepiece movement, the maximum outside diameter of driving wheel on barrel is the tooth top diameter of a circle of the gear teeth, and its gear teeth drive barrel rotation, and Xiang Yuandong system provides energy.But the bar case structure of this structure has the following disadvantages: because the gear teeth are in the outside of barrel, the barrel radius can't be strengthened in the wheel tooth height outside radius space of barrel that accounted for, and has limited the usage space in the barrel, and the clockwork spring energy also is defined simultaneously.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, and a kind of clockwork spring stored energy that strengthens is provided, the bar case structure when prolonging wrist-watch and walking.

The technical scheme that the utility model adopted is: a kind of case structure comprises: barrel, driving wheel on barrel sheet and screw; The bottom surface of described barrel is formed with screw hole and pressing has the position nail, described driving wheel on barrel sheet is provided with nail hole, position and screw via hole, center at described driving wheel on barrel sheet also is provided with through hole, described driving wheel on barrel sheet is followed closely axial location to barrel by the position, described screw is fixed on described driving wheel on barrel sheet combination the bottom surface of barrel by the screw hole on described barrel and the driving wheel on barrel sheet.

The tip diameter of described driving wheel on barrel sheet is less than the diameter of barrel.

Described barrel is formed with equally distributed three screw holes and pressing is two position nails of one; Be formed with two position nail hole and three the screw via holes suitable on the described driving wheel on barrel sheet with barrel.

The bottom center of described barrel is formed with the round platform of band through hole, and the central through hole on described round platform and the driving wheel on barrel sheet is suitable.

The bottom center of described barrel is formed with the square tenon of band through hole, and the square through hole on described side's tenon and the driving wheel on barrel sheet is suitable.

The beneficial effects of the utility model are: because barrel and driving wheel on barrel sheet are discrete parts, have increased the diameter of barrel, thereby increased the stored energy of clockwork spring to greatest extent, thereby the time prolonged when making the walking of timepiece movement; Especially the good manufacturability of driving wheel on barrel sheet processing is more suitable for processing in batch, can effectively enhance productivity.

Description of drawings

Fig. 1 is a barrel wheel construction perspective view in the prior art

Fig. 2 is the axial synoptic diagram of the utility model bar case structure;

Fig. 3 is the floor map of the utility model bar case structure;

Fig. 4 and Fig. 5 are the schematic perspective views of barrel and the combination of driving wheel on barrel sheet.

Among the figure:

1: barrel 2: the driving wheel on barrel sheet

3: position nail 4: screw

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 2 is the axial synoptic diagram of the utility model bar case structure; Fig. 3 is the floor map of the utility model bar case structure.

As shown in Figures 2 and 3, of the present utility model case structure comprises: barrel 1, driving wheel on barrel sheet 2 and screw 4; The bottom surface of described barrel 1 is formed with three equally distributed screw holes, and to follow closely 3 pressings with two positions be one, be formed with two positions nail hole and three the screw via holes suitable on the described driving wheel on barrel sheet 2 with barrel 1, center at described driving wheel on barrel sheet 2 also is provided with through hole, two position nails that two position nail borehole jacks on the described driving wheel on barrel sheet 2 are gone into corresponding barrel 1 carry out axial location, described screw 4 is by the screw hole on described barrel 1 and the driving wheel on barrel sheet 2, in conjunction with the bottom surface that is fixed on barrel 1, driving wheel on barrel sheet 2 and barrel 1 can be rotated simultaneously described driving wheel on barrel sheet 2; The tip diameter of described driving wheel on barrel sheet 2 is less than the maximum outside diameter of barrel 1, this moment, the maximum outside diameter of barrel was exactly the diameter of itself, so just make barrel 1 can take original gear teeth height space, so the radius of barrel can outwards be expanded, increase the clockwork spring storage space to greatest extent, when walking to prolong wrist-watch.

As shown in Figure 4 and Figure 5, the bottom center of described barrel 1 is formed with the round platform of band through hole, or the square tenon of band through hole, and through hole is a bar axle via hole, and the central through hole on described round platform or square tenon and the driving wheel on barrel sheet 2 is suitable, and it is in addition fastening to pass through screw.

Below the utility model barrel working process of mechanism is illustrated:

When full string released energy on the clockwork spring, clockwork spring drove barrel 1 rotation by the friction with barrel 1 inwall; Because driving wheel on barrel sheet 2 is fixed into integrative-structure by screw 4 and barrel 1, so barrel 1 drives driving wheel on barrel sheet 2 rotation together; Driving wheel on barrel sheet 2 is the energy output wheel of driving system, will drive subordinate's geared parts rotation, discharges the clockwork spring energy.

It is worthy of note that the utility model is not limited to above-mentioned embodiment; so long as those skilled in the art need not the mode that can associate by creative work; can be that arbitrary shape is processed on the one part as barrel 1 with driving wheel on barrel sheet 2 suitable central boss with centering; by the in addition fastening multiple modes that barrel is combined with the driving wheel on barrel sheet such as set-up mode of screw 4, all belong to a novel scope of protecting again.

Claims

1. a bar case structure is characterized in that: comprising: barrel (1), driving wheel on barrel sheet (2) and screw (4); The bottom surface of described barrel (1) is formed with screw hole and pressing has position nail (3), described driving wheel on barrel sheet (2) is provided with nail hole, position and screw via hole, center at described driving wheel on barrel sheet (2) also is provided with through hole, described driving wheel on barrel sheet (2) arrives on the barrel (1) by position nail (3) axial location, described screw (4) is fixed on described driving wheel on barrel sheet (2) combination the bottom surface of barrel (1) by the screw hole on described barrel (1) and the driving wheel on barrel sheet (2).

2. a case structure according to claim 1 is characterized in that: the tip diameter of described driving wheel on barrel sheet (2) is less than the diameter of barrel (1).

3. a case structure according to claim 1 and 2 is characterized in that: described barrel (1) is formed with equally distributed three screw holes and pressing is two position nails of one; Be formed with two position nail hole and three the screw via holes suitable on the described driving wheel on barrel sheet (2) with barrel (1).

4. a case structure according to claim 1 is characterized in that: the bottom center of described barrel (1) is formed with the round platform of band through hole, and the central through hole on described round platform and the driving wheel on barrel sheet (2) is suitable.

5. a case structure according to claim 1 is characterized in that: the bottom center of described barrel (1) is formed with the square tenon of band through hole, and the square through hole on described side's tenon and the driving wheel on barrel sheet (2) is suitable.