JPH0618307Y2 - Clock trainer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a train wheel setting mechanism.

[Prior Art] The conventional train wheel setting mechanism is disclosed in Japanese Patent Laid-Open No. 53-27076 and Shokai No. 5
7-48480, a train spring and an actuating spring were used.

[Problems to be solved by the invention]

However, in the above-mentioned conventional technology, when the timepiece is subjected to external disturbance such as drop or vibration, the train wheel spring bends and interferes with the trained member,
The instructions will go wrong. As a measure against it
There is also a method such as 24376 in which the rigid body portion and the spring portion are integrally formed and then cut, but there are problems that a flat space is required, the shape is complicated, and the number of processing steps is increased.

Therefore, the present invention solves such a problem, and an object of the present invention is to provide a train wheel setting mechanism which prevents an instruction deviation due to a disturbance, simplifies the shape of the train wheel setting lever, and reduces the working process. Is.

[Means for solving problems]

The train wheel setting mechanism of the present invention includes a winding stem, a member that interlocks with the winding stem or a push-pull operation of the winding stem, a train wheel setting lever having an engaging portion with the winding stem or the member, an operating spring, and a train wheel setting spring, and the train wheel setting device. It is composed of a machine frame provided with a rotary shaft of a lever and a contact portion of the actuating spring and the setting spring, and a regulated part that constitutes a part of a front train wheel. Among the angles formed by the two springs and the contact points of the contact portion, the controlled member is arranged within an angle between the two springs sandwiched by the force received from the contact portions.

[Action]

According to the above configuration of the present invention, by the time the train spring is contacted with the deflected member due to disturbance, the spring is absorbed by the initial deflection amount of the train spring, and the rotation moment of the entire train lever is received. With the increase of the spring force of the operating spring, it is possible to prevent the instruction deviation, and the shape of the train wheel setting lever is simplified. Further, when returning to the normal state, both the actuating spring and the train wheel setting spring are forces for returning the train wheel setting lever, so that the returning failure due to the warp of the train wheel setting lever can be eliminated.

〔Example〕

1 to 4 are plan and sectional views of a two-hand timepiece showing an embodiment of the present invention. Reference numeral 1 is a base plate formed of synthetic resin and has dowels 1a, 1b, 1c, 1d, 1e, a cylindrical portion 1f, a saray portion 1g, and walls 1h, 1i, 1j, 1k. 2 is a winding stem whose base and tip are supported in the hole of the main plate 1, and the chamfer 2
It has a and a secondary engagement groove 2b. Reference numeral 3 is a clutch wheel that is loosely engaged with the chamfered portion 2a of the winding stem and is slidable in the axial direction of the winding stem 2. 4 is a doll having an instep dowel 4a and a second dowel 4b, and a neck portion 4c is engaged with the engaging groove 2b '. The shishidori 4 follows the push-pull operation of the winding stem 2 around the shaft 5 planted in the main plate 1 and operates. 6 is a train wheel setting lever, and train wheel setting spring 6a
It is composed of an operating spring 6b and a posterior engaging portion 6c, and operates with the main plate dowel 1a as an axis. Further, the plane position of the train wheel setting lever 6 in the normal carrying state is the dowel 1a of the main plate 1 and the walls 1h, 1i.
It is determined by the train spring 6a, the actuating spring 6b, and the hole (when assembling the lever 3, it is sufficient to just throw it in). At this time, the spring force of the actuating spring 6b moves the train wheel setting lever 6 in the counterclockwise direction, and the spring force of the train wheel setting spring 6a rotates in the clockwise direction.
i, 1h, the rotor 9 which is the regulated member
Exists in the corner formed by the contact points of the two springs having the dowel 1a as the apex, which is sandwiched by the force received from the walls 1i and 1h. On the other hand, the train wheel setting lever 6 is operably pressed by the magnetic core forming the coil block 8 with the main plate 1, the posterior engaging portion 6c of the posterior lever 4, the train wheel setting spring 6a of the stator 7, and the operating spring 6b of the coil block 8. The coil block 8 is composed of a magnetic core, a coil frame, a coil wire, and a coil lead substrate. Reference numeral 9 is a rotor including a permanent magnet, a rotor pinion (having six teeth), a magnet frame A, and a magnet frame B9a. Magnet frame B9a
Is pressed by the train wheel setting spring 6a at the time of train wheel setting (same for three needles). 10 is a third wheel (6 pinions of the kana, 54 teeth of the gear), 11 is a minute wheel (60 teeth of the gear), 1
Reference numeral 2 denotes a day driving wheel, and the day driving wheel 12 is arranged substantially on the axis of the winding stem 2. These train wheels are supported by the main plate 1 and the train wheel bridge 13. A cylinder wheel 14 is supported by a pipe 15 which is planted in the main plate 1. The train wheel bridge 13 is guided by the receiving feet 16 and 17 planted in the main plate 1, and the screws 18 and 19 are provided.
It is screwed and fixed to the main plate 1. 20 is a train wheel bridge 1
3 is a spacer for determining the sectional position of 3. Further, the train wheel bridge 13 is a single thin metal plate (without a saray) for the purpose of cost reduction and thinning of the timepiece. Therefore, when the train wheel bridge 13 is assembled, the rotor 9, the third wheel 10, the minute wheel 11, the tip of the foot 18, 18 picks up the hole of the train wheel bridge 13,
Since the upper handle of the rear wheel 12 of the sun comes into contact with the train wheel bridge 13, the assembling property is extremely deteriorated. However, since the main plate dowel 1d is formed and the train wheel is arranged on the foot 16 side, the foot 17 side of the wheel bridge 13 is lowered even if the handle hole is not picked up in the upper handle. Guided to the foot 17 and the dowel 1d.
Further, the oil retention of the upper handle frame (which may be stone) of the rotor 9 and the third wheel & pinion 10 which are prone to fall is made to face the main plate 1 to improve the handleability. Since the main plate 1b is deformed after the screw 18 is tightened, the main plate dowel 1b is formed for the purpose of securing the backlash of the back wheel 12 of the day, and the quality of the thin timepiece using the synthetic resin main plate can be improved. The main plate dowel 1c includes the train wheel bridge 13 and the dowel 1c.
The clearance is set to 5/100 mm or less, and the weight of the battery 21 is received by the train wheel bridge 13 when the watch is dropped.
The gap δ (3/100 mm to 15/100 mm) is set as small as possible so as to have the effect of preventing the bending of No. 7 and also to prevent the deformation of the supersaturated portion of the stator 7. The cylindrical portion 1f is projected into the escape hole 11 of the clutch wheel 3, and when the needle is aligned, the saray portion 3 of the clutch wheel 3 is protruded.
It is formed so as to enter the inside of a. This is to prevent the shavings generated by switching and hand setting operation from adhering to the wheel train bridge in a watch that uses a synthetic resin mixed with a filler such as glass fiber in order to improve the strength of the main plate. Since it is necessary to make a blind hole and the space is limited in the case of a small timepiece, the guide length (needle matching state) of the tip of the winding stem 2 is shortened and the needle matching function is impaired. The structure that satisfies this condition is the cylindrical portion 1f. Reference numeral 22 denotes a battery negative terminal, which is elastically brought into contact with the cathode of the battery 21,
One end is pressed against the circuit board pattern by a screw 24 and a foot 25 planted in the base plate 1 to establish electrical continuity. Reference numeral 26 is a crystal unit 2 on a circuit board having a pattern formed on the surface facing the main plate 1a.
7 and a MOS-IC chip 28. Holes 26a and 26b are provided in the circuit board, and patterns 26c and 26d are formed by partially overhanging the holes. The pattern 26c is a reset pattern that is bent. An insulating plate 23 is arranged so as to overlap the circuit board, and is interposed between the anode can of the battery 21 and the battery negative terminal 22 to prevent a short circuit. The plate thickness is the battery negative terminal dowel 22a (can be bent)
It is designed to be approximately the same as the height of (the thinner the better). Further, the length of the portion of the battery negative terminal 22 that overlaps the spring portion is such that it does not overlap the outer diameter D of the cathode when it is pressed against the base plate 1 of the battery 21, so that the battery portion can be made thinner, Assembling of the insulating plate 23 only needs to be thrown in from the top of the circuit block 26, which facilitates automation. Furthermore,
Since the foot 25 and the insulating plate 23 are set to be shimiro (more stable if the non-circular portion is shimiro), once set, they will not come off and will be easier to handle. Three
Reference numeral 0 is a circuit retainer plate, which includes a click portion 30a and a spring 30b for cooperating with the instep dowel 4a to position the winding stem 2 in multiple stages, a hollow portion 30c for engaging with the groove portion 3b of the clutch wheel, and a reset pattern 26c. The reset spring 30d, the rear pressing spring 30e, the crystal pressing spring 30f that presses the crystal unit 27 through the pattern 26d, the battery spring 30g that presses against the positive electrode of the battery 21 to form the art, the protrusion 30h, the back cover 33. Earth spring 30i for earthing, and a presser foot. It is composed of a hook portion 30j for receiving the force of the crystal pressing springs 30e and 30f. The tip of the battery spring 30g is bent downward (on the side of the ground plate) so as to come into contact with the range of the straight portion 1 of the battery, and the plane shape is set to an acute angle of 90 ° or less. The tip bites into the battery 21 and the battery 21 does not pop out even if a shock is applied in the movement state.
The contact portion shape of the battery 21 is also set to an acute angle of 90 ° or less on the protrusion 30h, and the effect of preventing the battery from popping out can be further obtained by making the contact with the battery 21 at two places. The lever pressing spring 30e and the crystal pressing spring 30f have short spring lengths, and variations in the pressing force increase due to variations in the pressing amount and the like. Therefore, the planar shape up to the hook 30j and the periphery of the screw 24 is made thin and has elasticity to stabilize the pressing force. The hook portion 30j has a structure that is effective in reducing the number of screws and has a good space efficiency, and when assembled, simply pushes the slope 1m of the main plate to slide the slope 1m of the main plate and the hook portion 1 of the main plate 1.
Assembled into the n, it is easy to assemble. The hook portion of the dowel 1e is set and used as a guide for the circuit pressing plate 30 before the screws 24 and 35 are tightened.

5 and 6 are plan and sectional views of a three-hand timepiece showing an embodiment of the present invention. Compared with the above-mentioned two-hand timepiece, IC40 (output pulse interval is 1 second), wheel train bridge 41 fifth wheel 42 (7 pinion teeth, 42 gear teeth), 4th wheel 43 (pinion number 6)
Number of sheets, number of gear teeth 30), third wheel 44 (number of pinion teeth 6, number of gear teeth 45), minute wheel 45 (number of gear teeth 48), coil block 46 (only the coil winding conditions differ), stator 47, battery 48 (different thickness), and hour wheel 49 (only pipe diameter is different).

The same applies to the two needles, but the receiving foot 17 is the stator 47.
And also serves as a guide for the coil block 46 and the train wheel bridge 41, which increases the factor of variation in the yard of the wheel & pinion including the rotor, but the plane position of the wheel & pinion is closer to the foot 16 side (foot 16 Since the center distance of the third wheel & pinion 44 is set to 1/2 or less of the center distance of the foot 16 and 17, the increase in the variation factor that determines the clearance of the wheel & pinion can be sufficiently absorbed. Further, in order to prevent the ground plate from being scraped when the battery is charged, which is a drawback of the synthetic resin ground plate, the ground plate 1
Since the circuit pressing plate 30 and the train wheel bridge 41 are smaller in size than the battery saray diameter, the stop caused by the shavings can be eliminated.

The stator 7 is guided by the receiving feet 17 and 31, and is arranged so as not to overlap the minute wheels 11, 45 and the coil block 8 in a plan view. Further, the fifth wheel & pinion 42, the third wheel & pinion 44 and 10 are interposed between the outer shape of the stator 7 and the minute wheels 11 and 45, and the minute wheel and pinion 45 are set to the fifth wheel & second wheel & third wheel 44, 1.
The center distance of 0 is set to be substantially the same, and the fifth wheel & pinion 42 and the third wheel & pinion 44 are arranged to sandwich the third wheel & pinion 10. Moreover, the third wheel 44
And fifth wheel 42 do not overlap in a plane, third wheel 10,
The cross-sectional positions of the gears of 44 and the fifth wheel 42 are set to be substantially the same. Therefore, the stator 7 and the minute wheels 11, 45
Since there is no overlap between the fifth wheel & pinion 42 and the third wheel 44, the train wheel bridge can be made thinner, and the third wheel 1 is placed between the third wheel 44 and the fifth wheel 42.
By arranging 0, the plane space of the train wheel that doubles as a two-hand or three-hand watch can be made small, so that the watch can be made compact. Furthermore, the back wheel 12 of the day is also the third wheel 10,44 and the fifth wheel 4.
By placing the pinion wheels 45 and 11 on the front side with respect to the axis of the winding stem 2 so that the pinion of the minute wheel 45 and 11 does not overlap in plan view, it is possible to reduce the number of cars such as small iron cars and to make the train wheel thinner. There is. 1g,
1r and 1s are the third wheel and pinion 10 and 4 formed on 1 of the main plate, respectively.
It is the lower handle hole of the 4th and 5th wheel 42.

Next, the operation will be described. 1 to 6 show a normal carrying state in which the winding stem 2 is pushed in. In this state, the hand wheel 3 is not meshing with the day wheel 12 and the train wheel setting lever 6
Also does not engage with the rotor 9 and the dowel 4b. Also, the reset spring 30d and the reset pattern 22c are not in contact with each other. When the winding stem 2 is pulled out further, the click portion 30a is rotated clockwise by the instep dowel 4a. Therefore, the hand wheel 3 is pushed by the hollow portion 30c and meshes with the back wheel of the day, and the reset spring 30d also resets the reset pattern 22.
It contacts c and enters the reset state. In addition, the train wheel setting lever 6
, The engaging portion 6c is pushed by the second dowel 4b and rotates clockwise, and the train wheel setting spring 6a presses the magnet frame B9a (the spring force of the operating spring and the train wheel setting spring tries to rotate the train wheel setting lever in the counterclockwise direction). Acting in the direction of). This one-step pulled-out state is the needle matching state.

When the winding stem 2 is pulled out from the normal carrying state to the needle alignment state, the tooth tips of the dial wheel 3 and the date back wheel 12 interfere with each other, and when the winding stem 2 is pulled out forcibly, the spring portion 30b is twisted. There is no damage to the parts. Further, it is possible that the needle may be further pulled out depending on the needle alignment state in the operation, in which case Otsudabo 4b
Since it is decided to be 1g of ground plate saray, it will be wound more 2
Is not withdrawn. If this is not decided, the posterior 4 receives the pressure measurement of the click part 30a and the winding stem 2,
The rod 4 tilts (the rod neck 4c rises) and the winding stem 2 comes off.

FIG. 7 is a timing chart of clicking and resetting, train setting, start of meshing between the clutch wheel and the rear wheel of the day. The stroke of the winding stem 2 is plotted on the horizontal axis, and the click force and clearance and the amount of engagement are plotted on the vertical axis. 60 is click force, 61 is reset, 6
2 shows the regulation, and 63 shows the relationship between the trolley car and the back car of the day. The peak value of the click force is point A, and when it exceeds this point, the state instantly shifts to the needle matching state.

[Effect of device]

As described above, according to the present invention, the operation spring and the train spring are made to repel each other, so that
Since the train wheel setting spring does not hit the trained member due to a disturbance such as vibration, it is possible to eliminate the instruction error and to simplify the shape of the train wheel setting lever. Further, when the train wheel setting lever returns from the needle-matching state to the normal carrying state, the spring forces of the actuating spring and the train wheel setting spring are in the same direction, so that there is an effect that there is no return failure due to warping of parts or the like.

[Brief description of drawings]

 FIG. 1 is a plan view of a two-hand timepiece showing an embodiment of the present invention. 2 to 4 are sectional views of FIG. 1 (a) and (b), respectively. FIG. 5 is a plan view of a three-hand timepiece showing an embodiment of the present invention. 6 (a) and 6 (b) are sectional views thereof. FIG. 7 is a timing diagram of the present invention. 1 ...... Base plate 2 ...... Winding wheel 3 ...... Claw wheel 4 ...... Lever 6 ...... Trainer lever 26 ...... Circuit block 30 ...... Circuit holding plate 30a ...... Click part 30b ...... Spring 30c ...... Drilling part 30d ...... Reset spring

Claims (1)

[Scope of utility model registration request] 1. A winding stem, a member interlocked with the winding stem or a push-pull operation of the winding stem, a train wheel setting lever having an engaging portion with the winding stem or the member, an operating spring and a train wheel setting spring, and a train wheel setting lever. A machine frame provided with a rotary shaft, the actuating spring, and the contact portion of the train spring, and a trained part constituting a part of a front train wheel, and two springs with the rotary shaft as an apex in a normally portable state. A train wheel setting mechanism, wherein the trained member is arranged within a corner formed by a force received by the two springs from the contact portion, among angles formed by the contact portions of the contact portion.