JPS5849837B2 - Oscillating mechanism of a full-body clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the swinging mechanism of a full-body swing clock driven by a power source such as a mainspring.

2. Description of the Related Art In general, an integrated pendulum clock in which both a pendulum part and a timepiece body swing around a fulcrum formed between the timepiece body and a pendulum part is well known.

In the rocking mechanism of a conventional full-body swing clock, the rocking mechanism is all arranged in the clock body, and specifically, the power is transmitted to the escape wheel by a power source such as a mainspring, and the mechanism engages with the escape wheel. By hanging a swing rod with a small pendulum-like weight attached to the ankle foot protruding from the ankle, the small pendulum-like weight moves in conjunction with the left and right pendulum movements of the watch body and pendulum part, and The pendulum motion of the overall swing clock was maintained by the rocking biasing force received from the escape wheel.

This conventional device has the disadvantage that it is difficult to adjust the position of the ankle leg and the swinging rod and to assemble it, and only an experienced person can easily assemble it.

In addition, in conventional devices, the swing angle of the total swing clock itself is small, and in order to increase the swing angle, it is necessary to increase the length of the pendulum's pendulum or to reduce the weight of the pendulum-shaped weight. It is conceivable that it will increase.

However, with this method, there are problems in terms of space due to the lengthening of the swing rod, and a large load on the pallet and escape wheel due to the increased weight of the small pendulum-shaped weight. It was difficult to obtain a full swing clock with a large swing angle.

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to provide an overall swing clock that is easy to assemble and has a large pendulum swing angle.

In order to achieve the above object, the present invention includes an escape wheel, a pallet wheel driven to swing by the escape wheel, and balanced weights fixed to both ends of an arm that swings in conjunction with the pallet wheel. It features a full swing clock with a counterbalance.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 shows a front view of the full-body swing clock according to the present invention, and FIG.
The figure shows its back view.

FIG. 3 shows a plan view of the main part of the present invention, and FIG. 4 shows a sectional view of the main part.

The overall swing clock according to the present invention is composed of a clock body 2 that displays time and drives a pendulum, and a pendulum section 3, and the pendulum section 3 is composed of a pendulum rod section 4 and a pendulum weight section 6.

The pendulum rod portion 4 is screwed to the watch body 2, and a fulcrum pin 8 is formed at its upper end.

This fulcrum pin 8 is supported by a receiver 10, and the entire body swings from side to side as shown in FIG. 1 using the tip of the fulcrum pin 8 as a fulcrum.

A timepiece movement 12 is disposed on the back side of the timepiece body 2 and is driven by a battery inserted into a battery box 18.

As the timepiece movement 12 is driven, the hour hand 14 and minute hand 16 are rotated to display the time.

Further, a swinging mechanism section 20 of the total swing clock according to the present invention is disposed in the clock body 2, and is configured to operate independently of the clock operating mechanism (clock movement 12).

The pendulum drive unit 20 includes an automatic power spring winding device, which periodically drives the motor 22 to wind up the spring 30.

This motor 22 uses a battery inserted in a battery box 18 as a driving source, and has a pinion 26 fixed to its motor shaft 24 and meshes with a gear 28, which periodically rotates once.
It is configured to rotate.

A winding gear 32 is disposed coaxially with the gear 28 , and a spring 30 is provided between the two gears, one end of which is engaged with the gear 28 and the other end of which is engaged with the winding gear 32 .
2, the spring 30 is wound up and applies biasing torque to the winding gear 32.

A first transmission pinion 34 is meshed with the winding gear, and a second transmission pinion 38 is meshed with the first transmission gear 36, which is coaxially fixed.

Further, an escape pinion 42 is engaged with a second transmission gear 40 coaxially fixed to the second transmission pinion 38, and the spring 30
The power is transmitted to the escape wheel 44 which is fixed simultaneously to the escape pinion 42.

Further, the pallet wheel 46 is disposed at a position where it can be engaged with the escape wheel 44, and two pallet pins 48 provided on the pallet pallet 46 extend so as to be able to come into contact with the escape wheel 44.
6, the escape wheel 44 is moved tooth by tooth.

Furthermore, a balancer 55 is attached to the ankle stem 50, with ankle weights 54 of the same weight attached to both ends of the ankle arm 52.
is fixed at its fulcrum position, and this pallet stem 50 is swingably supported by the mechanism support plate.

The present invention has the above configuration, and its operation will be explained next.

The driving force of the escape wheel 44 is generated by the biasing torque stored in the spring 30 due to the periodic drive of the motor 22. The escape wheel 44 is transmitted to the fifth gear 40 → escape pinion 42 → escape wheel 44.
It is biased in the direction of arrow A in Figure 6.

The pendulum operation in a state where the escape wheel 44 is powered will be explained.

When the pendulum part 3 is tilted to the right as shown by the two-dot chain line X in FIG. Since they are supported, the pallets 46 and the balancer 55 are displaced so as to maintain a balanced state due to gravity.

Therefore, as shown in FIG. 5, the state of engagement between the pallet pin 48 of the pallet pallet 46 and the escape wheel 44 in the balancer 55 changes.

Specifically, the escape wheel 44 is advanced by one tooth, and at this time it applies a rocking force to the pallet pallet wheel 46.

The swing biasing force applied to the pallet 46 is applied to the pendulum portion 3
The clock body 2 and the pendulum portion 3 are urged to swing in the rightward direction.

Then, the pendulum part 3 that was swung to the right returns to the position 2 in Fig. 2.
When the pendulum portion 3 is tilted to the left as shown by the dotted chain line Y, the pallet lever 46 and the balancer 55 change so as to maintain a balanced state due to gravity.

Therefore, as shown in FIG.
The state of engagement between the ankle pin 48 of No. 6 and the escape wheel 44 changes.

In other words, the escape wheel 44 is advanced by one tooth, and at this time it applies a rocking biasing force to the pallet pallet wheel 46.

In this manner, in the swinging mechanism of the total swing clock according to the present invention, the escape wheel 44 is biased by the ankle pin 48, replenishing the loss of pendulum energy due to friction, etc., and always maintaining normal operation. It is operated so that a pendulum movement is performed.

In addition, since the ankle arm 52 of the balancer 55 extends long, the ankle weight 54 can be set far from the center position of the pendulum, and even if the swing angle of the ankle weight 54 is small, the center of gravity Since the movement is large, the swing angle of the overall swing clock can be increased.

As described above, in the overall swing clock according to the present invention,
All you need to do is fix the balancer 55 to the ankle stem 50.
Easy to assemble.

Furthermore, since the pallet weight 54 can be set at a distance far from the center of swing of the pendulum, the swing angle of the pallet weight 54 can be small, and an overall swing clock with a large swing angle can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a full-body swing timepiece according to the present invention, and FIG. 2 is a back view thereof. 3 is a plan view of the main part, FIG. 4 is a sectional view of the main part, and FIGS. 5 and 6 are operational diagrams of the main part. 44... Escape wheel, 46... Ankle, 48... Ankle pin, 50... Ankle stem, 52... Ankle foot, 54 ...Ankle weight.

Claims (1)

[Claims] 1. It has an escape wheel driven by a power source, a pallet wheel that is oscillated by the escape wheel, and a balancer with balanced weights fixed to both ends of the arm that oscillates in conjunction with the pallet wheel. A swinging mechanism of a full-body swing clock characterized by the following.