JPH0725748Y2 - Mainspring timer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timer operated by the spring power of a mainspring.

[0002]

2. Description of the Related Art Conventionally, a box having a scale plate displaying hour and minute scales, a gear-type timepiece device operated by spring power of a mainspring incorporated in the box, and a first stage gear of the timepiece device. A timer rotating body that is fitted to the shaft end of the scale plate and that rotates along the hour and minute scales of the scale plate,
A mainspring is wound when the timer rotating body is rotated in one direction, and when the rotating operation of the rotating body is released at a desired time / minute calibrating position, the rotating body is adjusted to zero scale from the hour / minute calibrating position. A clockwork timer configured to return to a position is known.

[0003]

In the above-mentioned conventional mainspring operating timer, the timer rotating body is composed of a rotary dial fitted to the shaft end of the first gear of the timepiece device. A large turning force is required when the mainspring is wound by turning by hand (when the timer is set). In order to solve such a problem, it is conceivable to apply a lever type rotating lever instead of the rotating dial. However, in the case of this rotating lever, the base end shaft support portion of the rotating lever is set at the time of setting the timer. Since a large rotation transmission force acts on the shaft, when the rotary lever and the first-stage gear are molded products of synthetic resin, the shaft end portion of the first-stage gear or the rotation end fitted to the shaft end portion. There was a problem that the base end shaft hole of the moving lever was damaged.

The present invention has been devised in order to solve the above-mentioned conventional problems, and the purpose thereof is to easily perform the timer setting by a light manual operation, and further, to break the lever fastening portion when the timer is set. It is to provide an improved mainspring timer so as not to do so.

[0005]

In order to achieve the above-mentioned object, the mainspring operating timer of the present invention has a timer rotating body 17 for winding a mainspring, which sets a timer, along a time scale 3 of a box scale plate 4. It is composed of a lever type rotating lever 7 that rotates with a circular arc elongated hole 18 centered on the shaft insertion portion of the first stage gear 11 in the lever rotating portion of the box 1 containing the timepiece device 5. , The projection pin 19 projecting outwardly of the box 1 through the arc-shaped long hole 18
It is provided in the stepped gear 11 and is provided with a base end mounting hole 7a of the rotating lever 7.
To the shaft end 11a of the first-stage gear 11 and the rotation lever 7
The second mounting hole 7b, which is separated from the base end mounting hole 7a, is fitted into the projecting pin 19 so that the rotation lever 7 is moved to the first gear 1.
It is characterized by being fixed to No. 1.

[0006]

According to the mainspring operation timer having the above-described structure, the mainspring can be easily wound when the timer is set by a small turning force (light manual operation) using the lever principle of the rotating lever 7. Also, the rotation lever 7
When the timer is set, the turning power is set by fitting the two lever mounting holes (the base mounting hole 7a and the second mounting hole 7b of the turning lever 11) to the shaft end 11a of the first gear 11 and the projecting pin 19. Even if the rotary lever 7 and the first step gear 11 are molded products of synthetic resin, it is possible to solve the problem of breakage of the lever fastening portion when the timer is set.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1 is a pair of front and rear half-molded products 1a and 1b.
A box made of synthetic resin formed by butt-joining, and a decorative object 2 with a cover structure in the shape of an animal, for example, a cat, and 0 to 10 minutes along the arc line on the front of the box 1. A scale plate 4 displaying the hour / minute scale 3 is attached as shown in FIGS.

Reference numeral 5 denotes a gear type timepiece device incorporated in the box 1, and the timepiece device 5 includes a large-diameter first stage gear 11 axially supported in the box 1 as shown in FIGS. , A small diameter pinion 12a meshing with the first stage gear 11 and a laterally elongated hole 10 of the box 1 coaxially and integrally with the pinion 12a (a laterally long hole formed in the front and rear walls of the box toward the outer peripheral direction of the first stage gear 11). ) A second stage gear 12 having a diameter slightly smaller than that of the first stage gear 11 which is rotatably supported by
A small-diameter pinion 13a meshing with the second-stage gear 12 and a third-stage gear 1 having a diameter slightly smaller than that of the second-stage gear 12 coaxially integrated with the pinion 13a and axially supported by the box 1.
3 and a small diameter pinion 1 that meshes with the third gear 13
4a and the pinion 14a coaxially and integrally with the box 1
A fourth stage gear 14 having a diameter slightly smaller than that of the third stage gear 13 pivotally supported by the pinion 1, and a pinion 1 meshing with the fourth stage gear 14.
5a and the pinion 15a coaxially and integrally with the box 1
The last escape wheel 15 pivotally supported by this and this escape wheel 15
And a pallet fork 16 which is engaged with and disengaged from, and a mainspring S for operating the timepiece device is incorporated in the portion of the first stage gear 11. The mainspring S is a coil spring wound around the outer periphery of the boss portion of the first stage gear 11, one end of which is a spring hook portion 11b and the other end of which is a spring hook portion 1c in the box 1. It is locked as shown in FIG.

The components of the timepiece device 5 excluding the mainspring S (each stage gear 11 to 14 and each stage pinion 12a).
14a and constituent parts of escape wheel 15 and pallet fork 16) are all formed by synthetic resin moldings.

Reference numeral 17 denotes a shaft end portion 11a of the first stage gear 11.
It is a timer rotating body which is fitted on the scale plate 4 and rotates along the hour / minute scale 3 of the scale plate 4. When the timer rotating body 17 is rotated in one direction (clockwise direction in FIG. 1), the mainspring S is wound. Then, when the rotating operation of the rotating body 17 is released at a desired time / minute calibrating position, the gear type timepiece device 5 is actuated by the spring power of the mainspring S to move the rotating body 17 from the time / minute calibrating position. It is configured to return to the zero scale position.

Thus, in the present invention, in the mainspring operating timer having the above-described structure, the timer rotating body 17 is the lever type rotating lever 7 for rotating along the hour / minute scale 3 of the scale plate 4. That is, a circular arc elongated hole 18 is formed in the lever rotating portion of the box 1 around the shaft insertion portion of the first stage gear 11, and a projecting pin 19 projecting outside the box through the circular arc elongated hole 18 is formed. Provided in the first stage gear 11,
The base end mounting hole 7a of the rotating lever 7 is shown in the shaft end portion 11a of the first stage gear 11, and the second mounting hole 7b separated from the base end mounting hole 7a of the rotating lever 7 is shown in the projecting pin 19. 4, the rotation lever 7 is fixed to the first stage gear 11, and the pallet fork 16 of the timepiece device 5 is used as the escape wheel 15.
It is composed of a rod-shaped rocking body of an intermediate pivot (this pivot is shown by reference numeral 8) having a pair of upper and lower claws 6a, 6b which are engaged with and disengaged from each other. The timer operating state can be understood by extending the outside of the box (upward) through the long hole 9 and observing the swinging movement of the rod-shaped portion 6c provided with the ankle extension portion, that is, the flag 6d. It is characterized by The rotating lever 7 is an integrally molded product of synthetic resin, and is formed into a tail shape corresponding to the animal shape of the shaped decorative body 2, for example, the shape of a cat.

[0013]

As described above in detail, according to the present invention, the mainspring can be easily wound when the timer is set by a small turning force (light manual operation) using the lever principle of the rotating lever 7. . In addition, the turning power of the turning lever 7 at the time of setting the timer is set to two lever mounting holes (the base end mounting hole 7a of the turning lever 7 and the first end gear 11a of the first stage gear 11 and the projecting pin 19). Even if the rotary lever 7 and the first stage gear 11 are molded products of synthetic resin, the problem of damage to the lever fastening part at the time of setting the timer can be solved. It has excellent practical effects such as being able to eliminate it.

[Brief description of drawings]

FIG. 1 is a front view of a mainspring operating timer according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG. 1 seen from above.

FIG. 3 is a front view of a state in which the box is opened, showing a structure of a timepiece device incorporated in the box of the timer in a state of winding the mainspring.

FIG. 4 is a developed sectional view along each step gear of the timepiece device.

[Explanation of symbols]

1 ... Box, 2 ... Molded decorative body, 3 ... Hours and minutes scale, 4 ... Scale plate, S ... Mainspring, 5 ... Clock device, 7 ... Rotating lever,
Reference numeral 7a ... Proximal end mounting hole of rotating lever, 7b ... Second mounting hole of rotating lever, 11 ... First stage gear of the timepiece device, 11a.
Shaft end of first stage gear, 17 ... Timer rotating body, 18 ... Arc long hole, 19 ... Projecting pin.

Claims (1)

[Scope of utility model registration request] 1. A box having a graduation plate displaying hour and minute scales, a gear type timepiece device operated by spring power of a mainspring incorporated in the box, and a shaft of a first stage gear of the timepiece device. A timer rotating body that is fitted to an end portion and rotates along the time / minute scale of the scale plate. When the timer rotating body is rotated in one direction, the mainspring is wound and the rotating body of the rotating body is rotated. A timer rotating body for winding a mainspring, which sets a timer in a mainspring operating timer configured to return the rotating body from the hour / minute calibrating position to the zero scale position when the dynamic operation is released at the desired hour / minute calibrating position. Is composed of a lever-type rotation lever that rotates along a time-scale, and an arc-shaped long hole centered on the shaft insertion portion of the first-stage gear is formed in the lever rotation portion of the box. Through the long hole A projecting pin projecting outward of the box is provided in the first-stage gear, and a base end mounting hole of the rotating lever is provided at a shaft end portion of the first-stage gear and separated from a base end mounting hole of the rotating lever. 2. A mainspring operating timer characterized in that the mounting hole is fitted to the projecting pin, and the rotary lever is fixed to the first stage gear.