JPS5922299Y2 - rotary drive device - Google Patents

Description

[Detailed description of the invention] This invention relates to a rotational drive device that uses several spiral springs as a driving source, and supplies torque to the output shaft over a period of time several times longer than the torque energy release time of one spiral spring. The invention is characterized in that several spiral springs are attached in series to the output shaft so that the output shaft can be operated.

An embodiment of the present invention will be described below based on the drawings.

In the drawings, a cylindrical body 2 is rotatably disposed within a cylindrical case 1 with both ends closed.

One end of the cylindrical body 2 is closed, and the closed portion 2A faces the one end closed portion 1A side of the case 1.

Furthermore, the center part of the closing part 1A of the case 1 and the center part of the closing part 2A of the cylindrical body 2 are penetrated, and the bundle shaft 3 is made to protrude into the inside of the cylindrical body 2 and the outside of the case 1.

A key 4 is interposed between the bundle shaft 3 and the closing portion 2A to restrict relative rotation between the cylindrical body 2 and the bundle shaft 3.

A bundle 5 is fixed to the outer end 3A of the bundle shaft 3 that protrudes outside the case 1.

Further, the inner end of the bundle shaft 3 protruding into the cylindrical body 2 is provided with a flange portion 3B that prevents the bundle shaft 3 from coming out of the case 1.

Furthermore, the closing part 1A of the case 1 and the closing part 2A of the cylindrical body 2
A ratchet 6 is placed between the bundle shaft 3 and the bundle shaft 3.
Fit and install.

In this case, relative rotation between the ratchet 6 and the bundle shaft 3 is restricted by using the key 4.

Reference numeral 7 denotes a pawl rotatably attached to a bracket 8 fixed to the inner surface of the closing portion 1A of the case 1, and the pawl 7 meshes with the ratchet 6 to rotate the ratchet 6 in only one direction.

In FIG. 3, this ratchet 6 rotates only in the left direction as indicated by arrow A.

Furthermore, one end 9A of the output shaft 9 is made to protrude inside the case 1 by passing through the center of the closing part 1B of the case 1, and the other end 9A is made to protrude into the inside of the case 1.
B is provided to protrude outside the case 1, and one end 9A is rotatably supported at the center of the flange portion 3B of the bundle shaft 3.

Spring holding outer cylinders 10, 11.12, which are rotatably supported by the output shaft 9, are loosely fitted into the cylindrical body 2, respectively. Spring holding inner cylinders 13, 14, and 15 are loosely fitted to the shaft 9 so as to be freely rotatable.

And spiral springs 16, 17, 18 are interposed between each spring holding outer cylinder 10° 11.12 and each spring holding inner cylinder 13, 14, 15 and are spirally wound in the same direction.

Further, on the outer periphery of the spring holding outer cylinder 10, 11.12, there are serrated ratchet teeth 10 extending in the same direction as the teeth of the ratchet 6.
A, 11A, and 12A are provided respectively, and the ratchet teeth 10A, 11A, and 12A are provided with pawls 19, 20.2, respectively.
1 are meshed with each other so that each spring holding outer cylinder 10, 11, 12 rotates only in the same direction.

Here, the claws 19, 20, 21 are rotatably attached to brackets 1-22, 23, 24 fixed to the inner surface of the cylindrical body 2.

Further, on the outer periphery of the output shaft 9, the ratchet teeth 10A are provided.
, 11A, 12A, and serrated ratchet teeth 25, 26, 27 extending in the same direction as the spring holding inner cylinders 13, 14.
15, each ratchet tooth 2
5.26.27 are engaged with claws 28, 29.30 rotatably attached to the inner surfaces of the spring holding cylinders 13, 14.15.

Furthermore, in the center of one end closing part 11B of the spring holding outer cylinder 11,
A cylindrical portion 31 that loosely fits into the spring holding inner cylinder 13 is integrally provided, and the ratchet teeth 10A, 11A,
Ratchet teeth 31A extending in the same direction as 12A are provided.

The ratchet teeth 31A are provided with a spring holding inner cylinder 1.
3. Engage the claws 32 rotatably attached to the inner surface.

Similarly, a cylinder part 33 that loosely fits into the spring holding inner cylinder 14 is provided at the center of the one end closing part 12B of the spring holding outer cylinder 12, and the ratchet teeth 10A, 11A, 12A are provided on the outer periphery of the cylinder part 33 that fits loosely into the spring holding inner cylinder 14.
Ratchet teeth 33A extending in the same direction are provided.

A pawl 34 rotatably attached to the spring holding inner cylinder 14 is engaged with the ratchet teeth 33A.

Reference numeral 35 denotes a generator motor, which is connected to one end 9B of the output shaft 9 through a series of gears 36. It is provided.

37 is a light bulb connected to the generator motor 35.

Next, the usage state of the rotary drive device having the above configuration will be explained.

To explain the case of accumulating energy in the mainspring springs 16, 17, and 18, first, when the bundle 5 is turned clockwise (in the direction of arrow A) in FIG. 1 with the gear device 36, that is, the output shaft 9 locked, the bundle The cylindrical body 2 integrally fixed to the bundle 5 also rotates in the same direction as the bundle 5.

In the following description, the directions of rotation of the bundle 5, the cylindrical body 2, etc. will be unified to the directions of rotation in FIGS. 3 to 8.

As the cylindrical body 2 is rotated to the left in FIG. 3, the pawls 19, 20, 21 attached to the cylindrical body 2 engage with the respective ratchet teeth 10A, 11A, 12A, thereby locking each spring retainer. The outer cylinders 10, 11, and 12 are simultaneously rotated in the same direction as the cylindrical body 2.

Due to the rotation of each spring holding outer cylinder 10, 11.12, each spring holding outer cylinder 10, 11.12 rotates each spring holding inner cylinder 13°, 14.
15 to the left together with each spring holding outer cylinder 10, 11.12, but the spring holding inner cylinder 13.1
The pawls 28, 29.30 attached to 4.15 mesh with the ratchet teeth 25, 26.27 on the output shaft (locked state) 9 side, preventing the spring holding inner cylinder 13.14.15 from rotating to the left. Since it is regulated, the spring holding inner cylinder 13.14.15
does not rotate, therefore, as the bundle 5 rotates to the left, the cylindrical body 2 and the spring holding outer cylinders 10, 11, 12
Through this, each spiral spring 16, 17.18 is wound to the left, and energy is accumulated in the spiral spring 16, 17.18.

When the spiral springs 16, 17, and 18 are wound in this way and the rotation of the bundle 5 is stopped, the spiral springs 16, 17, and
17.18 acts to forcibly rotate the spring holding outer cylinders 10, 11.12 and the spring holding inner cylinders 13, 14.15, respectively, but as mentioned above, since the output shaft 9 is in the locked state, , the spring holding inner cylinders 13, 14 and 15 do not rotate, and as shown in FIG. Therefore, the cylindrical body 2, that is, the spring holding outer cylinder 1
0, 11, and 12 are not forcibly rotated to the right by the mainspring springs 16, 17, and 18.

In other words, even if the rotation of the bundle 5 is stopped, the energy stored in each spiral spring 16, 17, 18 will not be released.

Next, as described above, the mainspring springs 16, 17, and 18 are
A case will be explained in which the energy stored in the engine is extracted as motive power.

Note that the magnitude of the energy accumulated in the mainspring springs 16, 17 and 18 is shown here for the sake of convenience.
17.18 will be explained assuming that the order is from large to small.

First, the output shaft 9 is unlocked.

Then, the spring holding inner cylinder 13 begins to rotate to the left due to the energy of the spiral spring 16, and the output shaft 9 is rotated to the left via the pawl 28.

The rotation of the output shaft 9 causes the generator motor 35 to rotate at high speed via the gear train 36, and the light bulb 37 lights up.

In this case, as shown in FIG. 5, when the spring holding inner cylinder 13 is rotated to the left, the pawls 32 provided inside the spring holding inner cylinder 13 engage the ratchet teeth 3 of the next spring holding outer cylinder 11.
1A, and the spring holding outer cylinder 11 is engaged with the spring holding inner cylinder 13.
Similarly, it rotates to the left.

At this time, the pawl 20 and the ratchet teeth 11A allow the spring holding outer cylinder 11 to rotate to the left, and the rotation of the spring holding outer cylinder 11 is not blocked (see FIG. 6).

When the spring holding outer cylinder 11 rotates, the spring holding inner cylinder 14 also rotates to the left in synchronization with the spring holding outer cylinder 11 via the spiral spring 17.

Therefore, the energy of the mainspring spring 17 remains stored.

The relationship between the spring holding inner cylinder 14, the spring holding outer cylinder 12, the spiral spring 18, and the spring holding inner cylinder 15 is also the same as that of the spring holding inner cylinder 13 and the spring holding outer cylinder 11. The relationship between the mainspring spring 17 and the spring holding inner cylinder 14 is the same.

After that, the energy of the mainspring spring 16 decreases and the energy of the mainspring spring 16 becomes smaller than the energy stored in the mainspring spring 17. In other words, the spring holding inner cylinder 13 overcomes the energy of the mainspring spring 17 and the spring is not held. When the cylinder 11 cannot be rotated to the left, the spring holding inner cylinder 13 becomes stationary, and the spring holding inner cylinder 14 starts to rotate by itself due to the energy of the spiral spring 17, causing the output shaft 9 to rotate to the left. become.

That is, here, the output shaft 9 is rotated by the energy of the spring spring 17, and the energy accumulated in the spring spring 17 is extracted as motive power.

In this case, the spring holding inner cylinder 14 and the next stage spring holding outer cylinder 12
The relationship is the same as that of the next process.

On the other hand, since the spring holding outer cylinder 11 is stationary with respect to the spring holding inner cylinder 13, the remaining energy of the spiral spring 16 prevents the spring holding inner cylinder 13 from rotating spontaneously.

After this, when the energy of the mainspring spring 17 decreases until it becomes smaller than the energy of the mainspring spring 18, the spring holding inner cylinder 15 starts to rotate by itself due to the energy of the mainspring spring 18 due to the same effect as described above, and the output shaft 9 is rotated. Rotate.

That is, the output shaft 9 is rotated by the energy of the spiral spring 18, and the energy accumulated in the spiral spring 18 is extracted as motive power.

In this way, multiple rows of spiral springs 16°17.
Out of the 18, the energy is taken out as motive power in the order of the stored energy, ie, the spiral springs 16, 17, and 18.

In this case, the switching of the operation of each spiral spring 16, 17, 18 gradually releases its entire energy over a long period of time without interruption, and the output shaft 9 is driven continuously and stably.

In addition, in an embodiment device in which each spiral spring has almost the same characteristics, each spiral spring that operates changes frequently.
The effect was the same as when the characteristics of each spiral spring were changed, and good operation was obtained.

The light bulb 37 is turned on by the rotation of the power generation motor 35.

In the above embodiment, three spiral springs are provided in series with respect to the output shaft 9, but the number of spiral springs does not necessarily have to be three, and two or three or more spiral springs may be provided.

As described above, according to the present invention, energy can be accumulated in a short time by simultaneously winding a plurality of spiral springs arranged on the output shaft, and when the energy is extracted as power, the accumulated energy can be In this case, a roughly constant amount of power is extracted sequentially from a large spring spring, and in this case, the operation is continuously switched to the next stage spring spring without interruption, and the output shaft can be stably driven for a long period of time. can.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the rotary drive device of the present invention;
Figure 2 is an enlarged cross-sectional view taken along the line II-II in Figure 1, Figure 3 is a cross-sectional view taken along the II-III line in Figure 2, and Figure 4 is an enlarged cross-sectional view taken along the line Ill-III in Figure 2.
■-■V line sectional view, Figure 5 is the V-V line sectional view of Figure 2,
6 is a sectional view taken along the line VI--VI in FIG. 2, FIG. 7 is a sectional view taken along the line Vll--Vll in FIG. 2, and FIG. 8 is a sectional view taken along the line ■■ in FIG. 1...Case, 3...Handle shaft, 9
...Output shaft, 16.17.18... Spring spring.

Claims (1)

[Scope of utility model registration request] A plurality of spiral springs, one end of which is fixed to the spring holding inner tube and the other end fixed to the spring retaining outer tube, are fitted in multiple rows along the longitudinal direction of the output shaft rotatably supported by the case, and each spiral spring is arranged in parallel. Each spring holding outer cylinder is rotatably engaged in only one direction with a bundle shaft supported rotatably in one direction by the case so that the springs can be wound all at once in the same direction. Each spring holding inner cylinder is engaged with the output shaft so that the output shaft can be driven over a long period of time by sequentially discharging energy, and the front spring holding inner cylinder is connected to the rear spring holding outer cylinder. Both cylinders are driven from the holding inner cylinder side so that both cylinders can be rotated synchronously, and when the rear spring holding outer cylinder is in a stationary state, the front spring holding inner cylinder is engaged so as to be prevented from rotating. A rotary drive device characterized by connecting spiral springs in series.