CN202257054U

CN202257054U - Second stop mechanism for mechanical watch

Info

Publication number: CN202257054U
Application number: CN2011203318056U
Authority: CN
Inventors: 马静; 耿力军; 张秀红; 张明
Original assignee: Tianjin Seagull Watch Group Co Ltd
Current assignee: Tianjin Seagull Watch Group Co Ltd
Priority date: 2011-09-06
Filing date: 2011-09-06
Publication date: 2012-05-30
Anticipated expiration: 2021-09-06

Abstract

The utility model discloses a second stop mechanism for a mechanical watch. The second stop mechanism for the mechanical watch comprises a second stop rod, a second wheel, a clutch wheel, a crank shaft, a bar clamp plate and a main clamp plate, wherein the crank shaft is arranged in a square through hole of the clutch wheel; the second stop rod is arranged in a groove formed by the main clamp plate; the upper surface of the bar clamp plate is in contact with the lower surface of the main clamp plate, and the axial space of the second stop rod is controlled by the bar clamp plate; a position pin is pressed on the main clamp plate; a rotary shaft hole sleeved with the position pin is formed on the second stop rod; and the end of the second stop rod is arranged in a groove shape of the clutch wheel and is in contact with or departed from the second wheel. The second stop mechanism for the mechanical watch has the beneficial effects that: as the second stop rod is provided with the rotary shaft hole, the instant pushing force of the crank shaft is buffered, and the damage of wheel teeth of the second wheel is avoided; and the second stop mechanism for the mechanical watch is simple in structure, reliable in second stop process and easy to assemble and disassemble.

Description

The only second mechanism of mechanical watch

Technical field

The utility model relates to a kind of wrist-watch parts, particularly relates to a kind of second mechanism of ending of mechanical watch.

Background technology

Second hand in the wrist-watch, as long as clockwork spring has certain rolling-in power to drive the running of whole train in the movement, the rotation that second hand just can not stop makes mechanical watch accurate school second.Patent announcement number is a kind of second mechanism of ending for CN 2057763U discloses, and this mechanism reaches through the peripheral collision that ends second bar and second wheel wheel sheet ends a second effect, thereby can realize ending function second.But it is L-shaped to end second bar, and on perpendicular length portion top curved left 45 degree, one of them stiff end cooperates with arbor, when arbor when passing because excessive the causing easily of force of the breath ended the second end movement and moved excessively, cause the second wheel gear teeth impaired, only second, effect was unreliable.

Summary of the invention

The utility model technical matters to be solved is to provide a kind of and be difficult for causing the second wheel gear teeth impaired, and end a second effective only second mechanism.

The technical scheme that the utility model adopted is: an a kind of only second mechanism of mechanical watch, comprise, and end a second bar, second wheel, castle wheel, arbor, bar clamping plate, bottom plate; Said arbor is installed in the square through hole of castle wheel, and the said second bar that ends is arranged in the formed groove of bottom plate, and the upper surface of said clamping plate contacts with the lower surface of bottom plate, and control ends the axial space of second bar; Pressing has the position nail on the said bottom plate, the said revolution axis hole that is formed with suit position nail on second bar that ends, and the said end that ends second bar crouches in the flute profile of castle wheel, and the said end that ends second bar contacts with second wheel or breaks away from.

Said end end of ending second bar is to the shaft direction bending that ends second bar, and the inner webs of dogleg section and shaft form 95 degree angles; Be formed with convexity in said end end of ending second bar, the interior outside of the said convexity 10-15 degree that all tilts to the inside.

The said material that ends second bar is a beryllium-bronze.

The beneficial effect of the utility model is: owing to only on second bar revolution axis hole being set, cushioned the moment tractional force of arbor, avoided the infringement of the second wheel gear teeth, this is simple in structure, ends second reliably, is easy to installation and removal.

Description of drawings

Fig. 1 is second mechanism's floor map of ending of the utility model mechanical watch;

Fig. 2 is the axial synoptic diagram that ends second mechanism of the utility model mechanical watch;

Fig. 3 is second mechanism's braking second wheel floor map of ending of the utility model mechanical watch;

Fig. 4 ends the synoptic diagram of second bar for the utility model;

Fig. 5 ends the schematic perspective view of second bar for the utility model.

Among the figure:

10: end a second bar 20: second wheel 30: castle wheel 40: arbor

50: bar clamping plate 60: bottom plate 70: the position nail.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further explain:

To shown in Figure 5, the only second mechanism of the utility model mechanical watch comprises that only a second bar 10, second wheel 20, castle wheel 30, arbor 40, bar clamping plate 50 and bottom plate 60, position follow closely 70 like Fig. 1; Said arbor 40 is installed in the square through hole of castle wheel 30 into a single integrated structure, and the said second bar 10 that ends is arranged in the bottom plate 60 formed grooves, and the upper surface of said clamping plate 50 contact with the lower surface of bottom plate 60, and control only second bar 10 axial space; Pressing has position nail 70 on the said bottom plate 60, the said revolution axis hole that is formed with suit position nail 70 on second bar 10 that ends, and the moment tractional force of revolution axis hole available buffer arbor is avoided the infringement to the gear teeth; The said b end that ends second bar 10 crouches in the flute profile of castle wheel 30, and said a end end of ending second bar 10 is to the shaft direction bending 11 that ends second bar 10, and the inner webs of dogleg section and shaft form 95 degree angles; Be formed with in said a end end of ending second bar 10 protruding 12, the interior outside of the said convexity 10-15 degree that all tilts to the inside.The said a end that ends second bar 10 away from or the gear teeth edge of collision second wheel 20.A said only second bar 10 is QBe2 (beryllium-bronze) material, has elasticity after the thermal treatment, and dynamics was softer when with the collision of second wheel wheel sheet, can delay second wheel gear teeth damage situations.

Do further explain in the face of the principle of work of ending second mechanism of the utility model mechanical watch down:

The braking second wheel, like Fig. 1 and shown in Figure 4, in the normal transmission process of wrist-watch, the said gear teeth edge that ends a end of second bar 10 away from second wheel 20, second wheel normally rotates; When needs braking second wheel; Like Fig. 3 and shown in Figure 4; Because square long-armed and square inner bore castle wheel 30 of arbor 40 is used, therefore, arbor 40 is moved to the left when outwards pulling out owing to the acting force (not shown) of being drawn retaining, trip(ping) lever, setting lever jumper, deciding catch spring can drive castle wheel 30; Said castle wheel 30 is by the T type groove on the bottom plate 60 restriction moving range, and when the one side of the straight-tooth tooth top of castle wheel 30 and T type groove was adjacent to, castle wheel 30 stopped to move; Said have a circular groove on second wheel 20 middle part circumference, the b end that ends second bar 10 crouches to be placed in its circular groove and also is moved to the left thereupon; The said a end that ends second bar 10 is that revolving shaft mind-set upper left side advances with position nail 70, and the tooth top to second wheel 20 is adjacent to simultaneously; Second wheel stopped the rotation after the said a that ends second bar 10 held the tooth top edge that is adjacent to second wheel 20, ended a second effect thereby reach.

Second wheel like Fig. 3 and shown in Figure 4, when mechanism is in halted state, inwardly pushes back arbor 40 from braking to free rotation state because drawn retaining, trip(ping) lever, setting lever jumper, the acting force (not shown) of deciding catch spring can drive castle wheel 30 and move right; Said castle wheel 30 stops to move when making upright wheel (not shown) be adjacent to the T type groove another side on the bottom plate 60 with upright wheel (not shown) helical teeth engagement; Like Fig. 1 and shown in Figure 4, a end that ends second bar 10 is a revolving shaft mind-set lower right rollback with position nail 70, and away from the tooth top of second wheel 20, second wheel 20 recovers rotation status under the drive of train simultaneously.

Claims

1. the only second mechanism of a mechanical watch comprises, ends a second bar (10), second wheel (20), castle wheel (30), arbor (40), bar clamping plate (50), bottom plate (60); Said arbor (40) is installed in the square through hole of castle wheel (30); The said second bar (10) that ends is arranged in the formed groove of bottom plate (60); The upper surface of said clamping plate (50) contacts with the lower surface of bottom plate (60), and control ends second axial space of bar (10); It is characterized in that; Said bottom plate (60) is gone up pressing has position nail (70); The said revolution axis hole that is formed with suit position nail (70) on second bar (10) that ends; The said b end that ends second bar (10) crouches in the flute profile of castle wheel (30), and the said a end that ends second bar (10) contacts with second wheel (20) or breaks away from.

2. the only second mechanism of mechanical watch according to claim 1 is characterized in that, said a end end of ending second bar (10) is to the only shaft direction bending (11) of second bar (10), and the inner webs of dogleg section and shaft form 95 degree angles; Be formed with convexity (12) in said a end end of ending second bar (10), the interior outside of the said convexity 10-15 degree that all tilts to the inside.

3. the only second mechanism of mechanical watch according to claim 1 is characterized in that, a said material that ends bar second (10) is a beryllium-bronze.