JPS5957187A - Escapement of time piece - Google Patents

Abstract

PURPOSE:To enable the engagement and disengagement of the escapement with limited impact by providing a pendulum lever adapted to receive a force of maintaining the motion of a pendulum engaging or disengaging an escape wheel, an intermittent driver operated interlocking the pendulum and the like. CONSTITUTION:An escapement of a time piece has a pendulum lever 6 adapted to receive a force of maintain the motion of a pendulum 2 engaging or disengaging an escape wheel 7, an intermittent driver A operated interlocking the pendulum and the like. With such an arrangement, the engagement or disengagement of the escape wheel can be done with limited impact thereby ensuring a stable escaping action of the escape wheel regardless of a large torque thereof while causing neither damage to parts nor breakage accident. Thus, it is ideal for a huge tower clock.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to clocks, and more particularly to clocks used in giant tower clocks.

The withdrawal from mechanical watches is generally known as the withdrawal from Ankur Gangi. This reconnaissance of Shuhei is senmai play 1
To the south of the escape wheel, which receives rotating torque from a power source, a pair of pins with a pendulum and a slow-moving pallet move in and out of each other, and the escape wheel advances one tooth at a time. In order to escape from the prisoner of the escape wheel, the pin buys a force from the tip of the tooth of the escape wheel, and this force is supplemented as energy to continue the reciprocating swing motion of the pendulum. .

When the ankle pin advances to the figure of the escape wheel, the entire escape wheel is straightened. At this time, a so-called ticking sound occurs. However, if the above-mentioned structure is applied to a huge tower, the following problem will arise. In other words, in a tower clock, the escape wheel provides a considerable amount of torque, so the sword, whose ankle pin rests on the gear, also has a relatively large load. For this reason, the pallet wheel or escape wheel must be secured to its role d1 by 1 inch of force or force, otherwise it will cause damage.

Therefore, the present invention aims to provide a simple escape that does not generate the above-mentioned inconvenient noises, and the following will explain the central style chestnut applied to a wall clock.

The outline of the actual chestnut tower "r'gt" is shown in Figure 1, and the diameter of the dial 1 of these four clocks is approximately 16 meters.
The center of the dial is approximately 16 meters from the ground or floor, and the upper end of the lever 2 extends over 28 meters from the ground or floor. The pendulum is formed into a truss structure and has an upper disk 5 and a lower disk 4 for decoration at its upper and lower parts, and the middle part thereof is swingably supported by the upper right part of the frame assembly. . A pendulum lever 6 is coupled to the pendulum Z at a position F of its swinging fulcrum, and this pendulum lever 6 engages with an escapement unit 7 that is mutually supported by the framework. The escape car 7 receives a clockwise rotational force from the illustrated ll/'1 power source, and the rotation is transmitted to the pointer 8 via the unillustrated 1st wheel train, so that the pointer 8 reaches 24 o'clock uJ.
I pay once with 1. A connecting portion 9 is provided protruding approximately in the middle position between the swinging fulcrum of the fC pendulum and the pendulum lever 6.
The connecting rod 1o, whose one end is connected to the connecting portion 9, is connected to the drive lever 11 of the intermittent drive device A(1) shown in FIG.

Here, the intermittent drive device Δ will be explained in detail with reference to FIGS. 6 to 11. In Figure 5 and Figure 4 VC,
A bowl-shaped disk 15 is attached to a central shaft 14 which is rotatably supported by a frame 12, 13 (which is incorporated into the frame shown in FIG. 1 and is omitted in FIGS. 2 and 3).
An annular disk 16 is bonded and solidified to the front surface thereof. The disc 16 supports the outer circumferential portion vc tooth capital 17, and a plurality of internal teeth 18 (8 in this embodiment) are recessed at equal intervals on its inner circumferential surface. =ya lever 11 is a “dog” shape? In addition, the disk 16 is rotatably connected to the center 11B14.
It extends in front of. The arm 19, which moves together with the drive lever 11, is located in the hollow portion of the disk 15, and is inserted into the end of the arm 19, so that approximately the center of the lever 2U is rotatably mounted. Recessed lever 20 (D = 34M section has 1 internal tooth
8 and a feed pawl 21 that can be engaged are integrally provided in a protruding manner. A regulating lever 25 whose one end is rotatably supported by a support shaft 22 is inserted between the drive lever 11 and the arm 19 at the same position as the disc 16, and is substantially concentric with the central shaft 14. It has a guide groove 2 in the shape of a circle l1lI11.

A guide roller 25 provided at the other end of the feed lever 2o is movably engaged with this guide u#14, and a guide groove 24 and 9. The positional relationship of the feed pawl 21 of the feed lever 20 with respect to the disk 16 is determined in opposition to the position of the tA control lever 23. As shown in FIG. 5VC, the regulating lever 23 has an operating cam 27 on its front surface which is rotatable about the entire center of the ItlI26. Made! The auxiliary cam 27 receives the counterclockwise rotational force by its own weight, and the auxiliary cam 27 comes into contact with the one-turn determining pin 28 protruding from the regulation lever 23, and is now rotated in the counterclockwise direction t4 by the dog pin 28. Rotation is regulated. The outer peripheral edge of the actuation cam 27 protrudes from the lower side of the regulation lever 23 by one inch, so that the push-up roller 29 mounted on the drive lever 8 moves the actuation cam toward the swinging position of the drive lever 11. 27 and the engagement groove 11. On the operating cam 27, there is a support shaft 60 in the middle IL? There is a layer of auxiliary cams 61 that can be rotated freely.
The lower end of the lower end protrudes directly from the outer circumference of the operating cam 27, and its rotation angle is determined by a pair of pins 32°33 (21st d).
It is omitted here. ) and add a pinch of salt.

Further, an engagement roller 34 is provided near the center lower side of the pump 1 river of the regulation lever 26, and this engagement roller 54
The position of the lipophilic lever 25 is the same as that of the lipophilic lever 71-, which is slid into the inner circumferential surface of the disk 16. In the initial position shown in FIG. 6, the engagement roller 34 is depressed into the inner teeth 18 of the disk 16, and the regulating lever 23 is held in the closed position as shown in FIG. In the state, the feed lever 2Uc/) inserting claw 211
1Jkiv at a point slightly VC separated from the inner peripheral surface of the disk 16
There is 'c. “Also, a cam surround 5 is provided at the bottom of the regulation lever 23.
5 are all coughing together.

If the drive lever 11 is in good condition, the push-up roller 29 and the center shaft 14
A push roller 56 is provided at a position approximately in the middle of t.

In the figure Th%rA'4a, the auxiliary cam 31 and pin 3
2.55 has been omitted to avoid clutter in Figure...''.

Here, I would like to explain the excitation to the drive unit 1′τ.
In the starting position shown in FIG.
The regulating lever 23 is in the F position. At this time, the free rotation of the disc 5 is locked by the retaining roller 34 that has entered the internal teeth 18.
The feed pawl 21 of the feed lever 20 faces the inner circumferential surface of the disk 16 at a position approximately midway between the inner surfaces 11a and 1a]d. When the drive lever 11 swings leftward via the rod 10 due to the leftward swinging of the pendulum l shown in FIG. together,
While the auxiliary cam 51 remains in contact with the pin 32, the operating cam 27 is pushed upward with the entire shaft 26 centered. And f! of the drive lever 11! As the movement progresses further, the push-up roller 29 is finally disengaged from the auxiliary cam 31 and the first moving cam 27, and the operating cam 27 and the auxiliary cam 61 are returned to their original positions. '! (Figure 7). When the pendulum Z in Fig. 1 moves to the maximum pressure +@ and begins to swing to the right, the small lever 11 also starts to swing to the right and is pushed as shown in Fig. 8. Hero roller 29 is operating cam 2
Around 7/1, he began to press on the team that played 4e1. The actuating cam 27 is now pushed upwards due to the counterclockwise rotation being blocked by V'X and the variable pin 28, and the regulating lever 23 is moved slowly and the regulating lever 23 rotates around the shaft 22. As shown in Fig. 9, it rotates counterclockwise in one direction and is placed in the upper position as shown in Fig. 9. This displacement causes the retaining roller 34 to move inside 118
escape from the disk and release the lock of the disk 16. At the same time, the feed lever 10 is displaced by the same number of times, and its feed claw 21 engages with the corresponding screw 18. Ingrown nail 21
While the internal teeth 18 are fully engaged, the lever 8 of the drive d is continuously rocked to the right, and the rR16 is rotated counterclockwise. When the drive lever 11 swings to the position where the push-up roller 29 completely releases the pressure of the +p moving cam 27, the disc 1
6 is rotated around the same periphery to the position where the leaf engaging roller 34 faces, so that the push-up roller 29 is rotated to the position where it faces the actuating cam 27.
Of course, if it is pushed too far, the engagement roller 3A will make a mark on the inner circumferential surface of the disc 16, and as a result, the regulation lever 23 will still be held at the upper position. When the disc 16 is driven to rotate by one pitch, the engagement roller! The inner teeth 18 opposite to the inner teeth 14 are opposite to each other. The needle retaining roller 54 has m
Then, the electrophilic lever 23 returns to the lower position due to the chalk. As a result, the feed pawl 21 of the feed lever 2o separates from the corresponding internal tooth 18 (FIG. 10). If the return of the regulation lever 23 by the eye is impaired due to some cause such as friction, the push-down roller 36 of the drive lever 11 forcibly pushes down the entire cam surface 35 of the regulation lever 23. The drive lever 11 can still be heard swinging to the right in the position shown in Figure 10, but at this time the feed pawl 21 is in the 1st position of the circle 16.
Of course, it only moves while facing Shikyoku and II at a distance of about ¥1. Then, the drive lever 11 returns to the inner position i6 where it was swung to the right to the maximum. In this way, the drive lever 11 or V is intermittently forced to step counterclockwise one pitch at a time as the pendulum 1 in FIG. 1 swings back and forth.

As shown in FIG. Valve and lock cam 40
, and every time the pendulum ヱ in Fig.
He is made to rotate once intermittently every Shikata episode. This lock cam 40 has IJ I SO as its center of rotation m4'ik.
The cam INi+40a is spiral-shaped and has a protruding cam INi+40a over an angular range of o. On the other hand, the tracing wheel 7 with which this lock cam 40 engages is designed as a single pin wheel in this embodiment, and the pin wheel is placed between two side plates 7a made to imitate the serrated tooth shape of a normal escape wheel. 7b,,7b2. ...
...It is made up of a 15° pitch. In the initial position, the lock cam 40&;E42 is positioned as shown in the figure, and the pin 7b5 is in contact with the cam recess 4LIa, thereby regulating the rotation of the escapement wheel 7, which has all the torque in the load-bearing rotation in Fig. 2. At this time, the tip (claw) 6'a of the pendulum lever 6 is located approximately midway between the pins 7b and 7b2.

'Next, the movements of the pendulum lever 6, escape wheel 7 (pin 7b), and lock cam 40 will be explained.

First, the swing fl shown in the first diagram swings to Oman, and when it swings to the maximum, Horiko Renoku-6 moves in conjunction with it.
I tremble at the position of the fire line in Fig. 11 of the sword. During this time, since the disk 16 of the intermittent drive device A is not driven as described above, the lock cam aOH remains stationary. Then, the pendulum l begins to swing to the right, and the pendulum lever 6 also swings to the right.

In Fig. a511, when the pendulum Reno-6 moves +f1 to the position shown by the dashed dotted line, the intermittent drive device A is in the state shown in Fig. 8, and from now on, the intermittent drive device k operates, and the gear trains 37, 38 in Fig. 2 are activated. .39'i, the lock cam 40 starts to rotate intermittently in the counterclockwise direction.
The pin 7b of the escapement vehicle 7 on the cam surface ADa is tJ!
1ljl, the escapement wheel 7 rotates 41 degrees at the same time, and as a result, the claw 1s8- of the pendulum lever 6, which is swinging to the right,
Ni:+! Bin 7b2 is approaching the sword. And in Fig. 11, the pin 7b of Ura Uni Escape Demon 7 shown by the two-dot chain line is the claw 6a VC'I of Shinriko L//<-6.
kfa L/, the rotation of the lock cam 40 precedes the locking of the pin 7b of the escape vehicle 7. Therefore, the bottle 7b uses the rotational force of the escape lure to push the digger lever 6 to the right, and this is used as a force to cause the pendulum 2 to swing. When the pin 7b of the escapement vehicle 7 pushes the pendulum (-6) and finally displaces by a distance B11 such that the claw 6a of the pendulum (-6) deviates from the 18!1 rolling trajectory of the pin 7b2, the lock cam 40 also moves approximately 1. The cam surface aOa enters in front of the pin 7b6 on the other side of the escapement wheel 7. Therefore, after the claw 6a of the pendulum reno-6 leaves the pin 7b, the pin 7b6 F; The rotation of the escapement wheel 7 is locked by hitting and escaping the lock cam 40. When the lock cam 40 rotates once, the 10th
As shown in the diagram, the operation of the intermittent drive system [Δ is stopped, and the digger 7 and the lever 6, which is being swung, are still swung to the right. However, fc returns to the initial state shown in FIG. Thereafter, in the same way, the above movement was repeated to the oscillating mother, and the escape vehicle 7 advanced one pitch at a time with each movement of the digging child, and its rotation V was The finger ν18 in FIG. 1 is driven by 1 by valving the transmission lateral groove (not shown), and the time is read.

In addition, the above example is a construction shown as a single unit, and +
The invention is now within the scope of the claims, and design changes can be made without departing from the scope of the claims. If it is intermittent) drive device 1s, i + pendulum l
Other mechanisms may be used as long as they operate intermittently during one reciprocation. In addition, the lever lever 6 is connected directly to the pendulum 2 (at an angle of ↓, although I'm being lazy with the projection). Furthermore, the escape wheel t7 can also be made into an escape wheel so that the latch VF lever 6 and the lock cam 40 are engaged with its triangular tooth profile.

According to the present invention described in detail above, the locking of the escaping vehicle and the contact of the escaping unit with the swing lever can be made fl with a small value, even when the escaping vehicle does not have a large torque. It is possible to perform a stable escape operation without causing damage or destruction of parts, and is therefore ideal as an escape mechanism for a gigantic one-time machine. Furthermore, since the lock of the escapement vehicle and the lock cam can be designed to be compatible with each other, the timing of locking and releasing the escapement vehicle can be properly set.

[Brief explanation of the drawing]

The drawings are of course one embodiment of the present invention;
The figure is a front view showing the general structure of the watch, Figure 2 is an enlarged front view showing its escapement mechanism, Figure 3 is an enlarged front view showing an example of an intermittent drive device, and Figure 4 is Figure 5. -IV# enclosure diagram, Figure 5 is an enlarged front view of the regulation lever of the intermittent drive device, Figures 6-
FIG. 10 is an explanatory diagram of the operation of the intermittent drive device, and FIG. 11 is an explanatory diagram of the operation of the escapement mechanism. l... Pendulum 6... Pendulum lever 7... Escape j1! , lb1~7b, ... Pi/11 of the escape vehicle [1
... Lock cam 7IOa ... Cam surface k ... Intermittent drive device

Claims (1)

[Scope of Claims] +1) The pendulum that performs reciprocating rocking motion and the escapement force that swings in conjunction with this pendulum and receives rotational force from the power source of the pendulum and the above-mentioned A pendulum lever is used to receive all the power to continue the movement of the digger, an intermittent drive device operates in conjunction with the pendulum, and the intermittent drive device is intermittently driven to rotate the pendulum in one reciprocating motion. A locking cam that engages with the escapement cam and alternately locks and releases the rotation of the escapement cam. (2. Scope of claims! Bird) In paragraph 1, the unloading vehicle is a pin wheel having a double bin on the outer rigid part, and the pendulum lever and the lock cam are engaged with the bin. In particular, the escapement of the clock as a percentage sign.