CN2375983Y

CN2375983Y - Disengaging device of gearing chain for analog-type quartz crysatl electronic watch

Info

Publication number: CN2375983Y
Application number: CN 99236561
Authority: CN
Inventors: 高捷
Original assignee: Dongguan Guangyu Electronic Industry Co ltd
Current assignee: Dongguan Guangyu Electronic Industry Co ltd
Priority date: 1999-07-08
Filing date: 1999-07-08
Publication date: 2000-04-26
Anticipated expiration: 2009-07-08

Abstract

The utility model relates to a novel disengaging device of a gearing chain for an analog-type quartz crystal electronic watch. The novel disengaging device is characterized in that a set of novel elastic lever mechanisms are arranged in a machine core of a quartz crystal watch. The elastic lever mechanisms are composed of winding stems 08 and elastic levers 31. Upper supporting holes of a setting wheel 04 which is arranged in a gearing chain are arranged on the elastic levers. Each of the elastic lever mechanisms is designed with a neutral gear and a time setting gear. The utility model avoids the disadvantage that the friction torque of an elastic structure is uncontrollable. No auxiliary gear wheel is additionally not increased. The utility model has the advantages of simple structure, good manufacturability and reliable performance.

Description

A kind of novel disengaging gear that is used for the indicating quartz electronic wristwatch gear transmission chain

The utility model relates to a kind of novel disengaging gear of indicating quartz electronic wristwatch gear transmission chain.

The typical ingredient of gear transmission chain of indicating quartz electronic wristwatch (hereinafter to be referred as quartz watch) has: (seeing accompanying drawing 1-6)

Rotor 01, its pinion wheel are 011, and it is the power source of electronic watch;

Power wheel 02, its gear wheel are 021, and pinion wheel is 022;

Second wheel 03, its gear wheel are 031, and pinion wheel is 032, and second hand 16 dresses thereon;

Third wheel 04, its gear wheel are 041, and pinion wheel is 042;

Minute wheel 05, its gear wheel are 051, and pinion wheel is 052, and minute hand 17 dresses thereon;

Back gear 06, its gear wheel are 061, and pinion wheel is 062;

Hour wheel 07, its gear wheel are 071, and hour hands 18 dresses thereon.

The transmission of gear transmission chain is in proper order:

011→021/022→031/032→041/042→051/052→061/062→071

The resetting of time in order to realize, shown in the minute hand, the gear transmission chain of quartz watch all has disengaging gear, and the second hand high speed rotating causes and comes off when avoiding resetting, and disengaging gear has following two classes usually:

The first kind: the gear wheel on the minute wheel 05 in the described driving-chain 051 is designed to elasticity with pinion wheel 052 is connected, be i.e. the structure that will skid during the moment more than bearing the moment Mc of regulation.Design simultaneously has another man-operated mechanism, during this man-operated mechanism work, applied moment can be passed to back gear 06 and minute wheel 05, hour wheel 07.When applied moment during greater than Mc, the big pinion wheel on the minute wheel 05 begins to skid, and it is separated promptly to be equivalent to big pinion wheel, and like this, the pinion wheel 052 of hour wheel 07 and minute wheel is separately with back gear 06 rotation, thereby reaches resetting of time shown in hour hands, the minute hand.When applied moment disappeared, mechanism also just recovered original bonding state at once.The shortcoming of this type of design is that the moment of friction of minute wheel sheet and cannon pinion is difficult to grasp, and requirement on machining accuracy is very high, and technology difficulty is big.

Second class: a kind of mechanism is provided in design, make in the described driving-chain increase one-level can parallel mobile equipment gear, the disengagement of parallel mobile realization driving-chain that helps gear by the shop is with closed.The shortcoming of this type of design is complex structure, take up room big, the movement volume is bigger.

The purpose of this utility model is intended to overcome the deficiency of prior art and a kind of unmanageable shortcoming of moment of friction of both having avoided elastic construction is provided, seldom increase the one-level equipment gear again, simple in structure, good manufacturability, the novel disengaging gear of the indicating quartz electronic wristwatch gear transmission chain of dependable performance.

The purpose of this utility model is achieved in that

A kind of novel disengaging gear that is used for the indicating quartz electronic wristwatch gear transmission chain, comprise rotor 01, power wheel 02, second wheel 03, third wheel 04, minute wheel 05, back gear 06, hour wheel 07, it is characterized in that also comprising arbor 08 and elastic lever 31, elastic lever 31 is made up of oblique arm 313 and straight elastic arm 311, and the oblique arm 313 of elastic lever is provided with the upper support hole 314 of third wheel 04 in the gear transmission chain, elastic lever is installed on the post 518 of bottom plate 51 and can rotates around this post, and the third wheel 04 in the driving-chain is installed on the supported hole 314.

---the gulde edge 312 of described elastic lever is pushed into by arbor on the positioning table 519 of bottom plate, and straight elastic arm 311 is pushed away reference column 321 when normally walking.

---described arbor 08 is drawn out and is connected with transmission wheel, elastic lever then under self elastic force effect straight elastic arm 311 recoil to reference column 321 and closely contact, circuit promptly is in and ends state second this moment, for the time is provided with shelves.

---described oblique arm 313 moves, and third wheel 04 produces, and the pinion wheel 042 of third wheel 04 breaks away from the engagement of the gear wheel 051 of minute wheel 05, makes the time that the high speed rotating of having avoided second hand is set.

The utility model is described in further detail below by drawings and Examples:

Fig. 1 is the utility model neutral position planimetric map

Fig. 2 is the cut-open view along Fig. 1 A-A line

Fig. 3 is the cut-open view along Fig. 1 B-B line

Fig. 4 is provided with the gear planimetric map for the utility model time

Fig. 5 is the cut-open view along Fig. 4 C-C line

Fig. 6 is the cut-open view along Fig. 4 D-D line

In Fig. 1 to Fig. 6,31 elastic levers, 311 straight elastic arms, 312 gulde edges, 313 oblique arms, 314 upper support holes, 08 arbor, 51 bottom plates, 518 posts, 519 positioning tables, 321 reference columns, 081,082 is special-purpose groove, 083 is special-purpose contact site, 21 positive plates, 211 control shell fragments, the figure number of other gear and pin is seen first section of instructions.

Fig. 1 to Fig. 3 is a neutral position, as seen from the figure, on this gear, arbor is advanced to place, special-purpose groove 081 location, the straight elastic arm 311 of elastic lever 31 is pushed away reference column 321 by arbor 08, and the gulde edge 312 of elastic lever 31 abuts against on the positioning table 519 of bottom plate 51.Under this state, whole gear transmission chain, be in engagement from rotor 01 → power wheel 02 → second wheel 03 → third wheel 04 → minute wheel 05 → back gear 06 → hour wheel 07, arbor and lifting lever wheel are in disengaged condition simultaneously, the moment of face that transmits from the arbor direction can not arrive gear transmission chain, and whole gear transmission chain is in state when walking normally under the driving of rotor.From illustrating as seen, the stability of two gears be the special-purpose groove 081 of two of

arbor

08 and 082 and positive plate 21 on the precise and stable resilient engagement of gear control shell fragment 211, this cooperation has guaranteed the stability of gear reliably.

Fig. 4 to Fig. 6 express time is provided with the state of gear, as seen from the figure, on this gear, arbor is pulled to place, special-purpose groove 082 location, the straight elastic arm of elastic lever 31 recoils to and the contacted position of 321 posts, this contact makes circuit be in an only second state (motor quits work), meanwhile, the oblique arm 313 of elastic lever is pulled and rotates counterclockwise an angle around 518 posts of bottom plate 51, so the hole 314 on the oblique arm 313 is followed mobile, because hole 314 is the upper support hole of third wheel 04, so this hour setting wheel tilts thereupon, the pinion wheel 042 of third wheel is thrown off with the engagement of the gear wheel 051 of minute wheel, is come so minute wheel 05 back gear 06 and hour wheel 07 just break away from from driving-chain.When arbor is pulled to location, place, special-purpose groove 082 location, the special-purpose contact site 083 of arbor 08 contacts with the inner hole wall of transmission wheel 41, and producing rubs is connected, like this, thus moment of face just can drive minute wheels 05, back gear 06 and hour wheel 07 rotation through transmission wheel 41 from arbor 08 reach the purpose that the time is provided with.

The utility model is rationally novel in design, and is more simple in structure than prior art, good manufacturability, Dependable performance has improved the quality of indicating quartz electronic wristwatch, will be subjected to the user and welcome.

Claims

1, a kind of novel disengaging gear that is used for the indicating quartz electronic wristwatch gear transmission chain, comprise rotor 01, power wheel 02, second wheel 03, third wheel 04, minute wheel 05, back gear 06, hour wheel 07, it is characterized in that also comprising arbor 08 and elastic lever 31, elastic lever 31 is made up of oblique arm 313 and straight elastic arm 311, and the oblique arm 313 of elastic lever is provided with the upper support hole 314 of third wheel 04 in the gear transmission chain, elastic lever is installed on the post 518 of bottom plate 51 and can rotates around this post, and the third wheel 04 in the driving-chain is installed on the supported hole 314.

2, the novel disengaging gear that is used for the indicating quartz electronic wristwatch gear transmission chain according to claim 1, the gulde edge 312 that it is characterized in that elastic lever is pushed into by arbor on the positioning table 519 of bottom plate, and straight elastic arm 311 is pushed away reference column 321 when normally walking.

3, the novel disengaging gear that is used for the indicating quartz electronic wristwatch gear transmission chain according to claim 1, it is characterized in that arbor 08 is drawn out and is connected with transmission wheel, elastic lever then under self elastic force effect straight elastic arm 311 recoil to reference column 321 and closely contact, circuit promptly is in and ends a second state this moment, for the time is provided with shelves.

4, the novel disengaging gear that is used for the indicating quartz electronic wristwatch gear transmission chain according to claim 1, it is characterized in that oblique arm 313 moves, third wheel 04 produces, the pinion wheel 042 of third wheel 04 breaks away from the engagement of the gear wheel 051 of minute wheel 05, makes the time that the high speed rotating of having avoided second hand is set.