JPH0855532A - Device for spring energy storing operation - Google Patents

Abstract

PURPOSE:To miniaturize a device through reducing the load on a closing spring by performing closing action using the closing spring, and performing interrupting action using an interrupting spring. CONSTITUTION:A closing hacker shaft 32 rotates counterclockwise in response to a command to close, and a closing lever 30 rotates counterclockwise with the end of the closing lever 30 passing through the cut portion 33 of the closing shaft 32, and the right end of the lever 30 is forced to abut to a stopper 40 to rotate a main shaft 1 counterclockwise to attain a closed state. In response to a command to interrupt, an interrupting hacker shaft 34 rotates clockwise and an interrupting lever 31 rotates clockwise with the upper end of the lever 31 passing through a cut portion 35, and the upper end of the lever 31 is forced to about to the stopper 40 to rotate the main shaft 1 via an interrupting link 37, a closing link 36 and the lever 30 to attain an interrupting state. Then the lever 31 rotates counterclockwise, the upper end of the lever 31 is released from the stopper 40 and passes through the cut portion 35, the shaft 34 rotates counterclockwise, and the closing spring 38 and the interrupting spring 39 are compressed simultaneously to energize the levers 30, 31 to attain a ready-to-close state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring accumulating operation device such as a switch and a circuit breaker for accumulating a closing spring and a breaking spring.

[0002]

2. Description of the Related Art A conventional spring energy storage device has a structure shown in FIG. In the figure, 1 is a main shaft, 2 is a main shaft lever having a lower base fixed to the main shaft 1, 3 is a long hole formed in the main shaft lever 2, 4 is a rotatable shaft provided for rotation, and 5 is a rotary shaft. A drive lever fixed to the shaft 4 is a moving rod 6 which is planted on the rear surface of the lower base of the drive lever 5,
It is loosely inserted in the long hole 3 and is in contact with the lower end of the long hole 3. Reference numeral 7 denotes a locking portion projecting from both sides of the upper end portion of the drive lever 5, and 8 denotes a contact rod fixedly provided at a position on the upper left side of the main shaft 1, which is located inside both locking portions 7. However, the left locking portion 7 is in contact.

Reference numeral 9 is a locking rod that is planted on the left side of the tip of the drive lever 5, and 10 is a rotatable locking lever that is pivotally supported at the center, and the locking portion 11 at the upper end is the locking rod. 9 is abutted and locked. Reference numeral 12 denotes a closing lever which is located below the main shaft 1 and is movable left and right, and a lower end portion of the locking lever 10 is connected to a tip end portion thereof.

Reference numeral 13 denotes a rotary shaft which is rotatably provided on the upper right side of the main shaft 1, 14 is a power accumulating lever fixed to the base of the rotary shaft 13, and 15 is a lock which is planted at the lower part of the power accumulating lever 14. A rod, 16 is a pivot rod which is planted on the lower left side of the energy storage lever 14, 17 is a locking lever whose left end is pivotally supported by the pivot rod 16, and 18 is a central portion of an upper edge of the locking lever 17. The locking lever 17 is biased by a spring (not shown), and the locking groove 18 is in contact with the locking rod 15.

Reference numeral 19 is a locking portion protrudingly provided on the right side of the locking lever 17, 20 is an abutting portion formed on the upper left side of the accumulating lever 14, and 21 is fixedly provided on the upper left side of the rotary shaft 13. The contact rod is in contact with the contact portion 20. Reference numeral 22 is a closing spring whose right end is locked to the energy storage lever 14, and whose left end is locked to the locking rod 9 of the drive lever 5. 23 is the energy storage lever 1
4 is an operation handle located in front of 4 and fixed to the tip of the rotary shaft 13.

Reference numeral 24 is a blocking lever which is located above the rotary shaft 13 and is movable left and right. Reference numeral 25 is a blocking spring whose right end is locked to a fixed rod, and whose left end is the right side of the drive lever 5. It is locked to the part 7. Reference numeral 26 is a long hole formed at the tip of the shutoff lever 24, 27 is an auxiliary lever whose center is rotatably supported, and 28 is planted at the upper end of the auxiliary lever 27 and loosely inserted in the long hole 26. Pins 29 are contact portions formed at the lower end of the auxiliary lever 27.

Next, the operation will be described. The drawing shows the shut-off state, in which the spindle 1 rotates counterclockwise, the moving rod 6 of the drive lever 5 contacts the lower end of the elongated hole 3 of the spindle lever 2, the drive lever 5 rotates clockwise, and the left side of the drive lever 5 engages. The stop portion 7 abuts on the abutment rod 8, the engaging portion 11 of the engaging lever 10 abuts on the engaging rod 9 of the drive lever 5, the rotary shaft 13 rotates right, and the abutment portion of the energy accumulating lever 14 contacts. 20 is in contact with the contact rod 21.

When the operation handle 23 is rotated counterclockwise as shown by the chain line arrow in the same figure, the rotary shaft 13 is rotated counterclockwise and the energy accumulation lever 14 is rotated counterclockwise, so that the auxiliary lever 2 is rotated.
The locking portion 19 of the locking lever 17 contacts the contact portion 29 of the locking lever 7. At this time, the closing spring 22 is stretched and stored by the counterclockwise rotation of the accumulator lever 14, energizing the drive lever 5 in the closing direction, that is, the counterclockwise rotation direction, and the charging lever 14 in the clockwise direction. Energized and ready for loading.

Next, when the closing command is received, the closing lever 12 moves to the right as shown by the thin arrow, the locking lever 10 rotates counterclockwise, and the locking portion 11 of the locking lever 10 causes the driving lever 5 to move. The driving lever 5 is rotated counterclockwise by the releasing force of the closing spring 22, the locking portion 7 on the right side of the driving lever 5 abuts on the abutment rod 8, and the cut-off spring 25 is extended and stored. Energize. At this time, when the drive lever 5 rotates counterclockwise, the moving rod 6 of the drive lever 5 moves in the elongated hole 3, the main spindle lever 2 rotates right, and the main spindle 1 rotates right, which is in the closed state.

Next, when the cutoff command is received, the cutoff lever 24 moves to the left and the auxiliary lever 27 rotates counterclockwise through the elongated hole 26 and the pin 28, as shown by the thick arrow, and the auxiliary lever 27 comes into contact. The contact portion 29 slides in contact with the locking portion 19 of the locking lever 17 and moves, and the locking lever 17 is biased in the right rotation direction so that the locking lever 17 rotates right and the locking lever 1
The locking groove 18 of 7 disengages from the locking rod 15, and the closing spring 22
Also, due to the urging force of the blocking spring 25, the energy storage lever 14 rotates clockwise, and the contact portion 20 of the energy storage lever 14 contacts the contact rod 21. At the same time, the driving lever 5 is rotated rightward by the releasing force of the closing spring 22 and the breaking spring 25, the moving rod 6 of the driving lever 5 moves in the long hole 3, and the moving rod 6 contacts the lower end of the long hole 3. The main shaft lever 2 rotates counterclockwise and the main shaft 1 rotates counterclockwise, and the state shown by the solid line in FIG.

[0011]

In the case of the above-mentioned conventional device, when the closing springs 25 which are opposed to each other are stored by the releasing force of the closing spring 22, the generated load of the closing spring 22 is large due to the stored energy. And the device becomes large. In addition, there is a problem that both the closing spring 22 and the breaking spring 25 need to be changed when the characteristics of the closing speed or the breaking speed are changed when the characteristics are applied to multiple models.

In consideration of the above points, the present invention reduces the load generated by the closing spring, downsizes the device, and makes it possible to easily change the characteristics of the closing speed or the breaking speed when the spring is applied to multiple models. An object is to provide an operating device.

[0013]

In order to solve the above-mentioned problems, in a spring energy storage device of the present invention, a base is fixed to a main shaft and a main lever rotates in a closing direction, and a base rotates to the main shaft. A shutoff lever that is freely provided and rotates the spindle in the shutoff direction, a closing link whose one end is connected to the tip of the closing lever, one end is connected to the tip of the closing lever, and the other end is the other end of the closing link. And a closing spring that presses the other ends of both links and urges the closing lever in the closing direction via the closing link, and a breaking spring that urges the tip end of the closing lever in the closing direction. A closing hacker shaft that locks at the tip of the closing lever when the closing spring stores energy, and a blocking hacker shaft that locks at the tip of the blocking lever when storing the closing spring.

[0014]

In the spring energy accumulating operation device of the present invention constructed as described above, one end of the closing link is connected to the tip of the closing lever and the other end of the closing link is connected to the tip of the breaking lever. The other end of the link is connected, and the tip of the closing lever is locked to the closing hacker shaft to store the closing spring. The closing spring presses the other ends of both links, and the closing lever also connects the closing lever. The closing spring is biased in the closing direction and the tip of the breaking lever is locked to the breaking hacker shaft to store the breaking spring, and the breaking spring biases the tip of the breaking lever in the breaking direction. Thus, the closing operation is performed by the closing spring and the breaking operation is performed by the breaking spring, the load generated by the closing spring is reduced, and the device is downsized.

Further, when the characteristics of the closing speed or the breaking speed are changed when diverted to various models, only the springs corresponding to the characteristics to be changed are changed, and the change is easy.

[0016]

EXAMPLE One example will be described with reference to FIG.
In the figure, reference numeral 30 denotes a closing lever whose left side base is fixed to the main shaft 1, and rotates the main shaft 1 in the closing direction by rotating it clockwise. Reference numeral 31 is a blocking lever whose lower base is rotatably supported by the spindle 1, and rotates the spindle 1 in the blocking direction by left rotation. 32 has a notch 33, and the closing lever 30
Is a closing hacker shaft whose right end is locked, and is biased in the counterclockwise direction by a spring (not shown). Reference numeral 34 is a cut-off hacker shaft having a notch 35, and the upper end of the cut-off lever 31 is locked, and is biased in the clockwise direction by a spring (not shown). 36 is a closing link whose one end is connected to the right side of the closing lever 30, 37 is a breaking link whose one end is connected to the upper part of the breaking lever 31, and the other end is connected to the other end of the closing link 36.

Reference numeral 38 denotes a closing spring that presses the other ends of both links 36 and 37, and biases the closing lever 30 in the clockwise rotating closing direction via the closing link 36. Reference numeral 39 is a blocking spring for urging the upper part of the blocking lever 31 in the blocking direction of left rotation, and 40 is a stopper provided below the closing lever 30 and to the left of the blocking lever 31, both levers at the time of closing and closing. The rotation positions of 30 and 31 are regulated.

Next, the operation will be described. The drawing shows a closing preparation state, the right end of the closing lever 30 is locked to the closing hacker shaft 32, the closing spring 38 is compressed and energy is stored, and the closing lever 36 causes the closing lever 30 to move in the closing direction, that is, It is biased in the direction of clockwise rotation. On the other hand, the upper end of the cutoff lever 31 is locked to the cutoff hacker shaft 34, the cutoff spring 39 is compressed and stored, and the cutoff lever 31 is urged in the cutoff direction, that is, the counterclockwise rotation direction.

When the closing command is received, the closing hacker shaft 32 rotates to the right as indicated by the thin arrow, and the closing spring 38.
The right end of the closing lever 30 passes through the notch 33 of the closing hacker shaft 32 by the urging force of the closing lever 30 and the closing lever 30 rotates right, the right end of the closing lever 30 contacts the stopper 40, and the spindle 1 moves to the right. It will rotate and enter.

Next, when the cutoff command is received, the cutoff hacker shaft 34 rotates counterclockwise as shown by the chain line arrow, and the cutoff spring 39
The upper end of the cutoff lever 31 passes through the cutout portion 35 by the urging force of the cutoff lever 31 and the cutoff lever 31 rotates counterclockwise, and the upper end of the cutoff lever 31 contacts the stopper 40. The main shaft 1 rotates counterclockwise through the link 36 and the closing lever 30 to be in the cutoff state.
At this time, the closing lever 3 is rotated counterclockwise to make the closing lever 3
The right end of 0 closes the stopper 40, the right end of the closing lever 30 passes through the notch 33, the closing hacker shaft 32 rotates counterclockwise, and the right end of the closing lever 30 engages the closing hacker shaft 32. Stop.

Then, the breaking lever 31 is rotated clockwise as indicated by the thick arrow, and the upper end of the breaking lever 31 is stopped by the stopper 40.
And the cut-off hacker shaft 34 rotates to the right, the upper end of the cut-off lever 31 is locked to the cut-off hacker shaft 34, and the closing spring 38 and the cut-off spring 39 are simultaneously compressed and stored. , Both springs 38, 39 cause the closing lever 30,
The shut-off lever 31 is urged to be ready for closing.

[0022]

Since the present invention is configured as described above, it has the following effects. In the spring energy operation device of the present invention, one end of the closing link 36 is connected to the tip of the closing lever 30 and the other end of the breaking link 37 is connected to the tip of the breaking lever 31. By connecting and closing the tip of the closing lever 30 to the closing hacker shaft 32, the closing spring 38 is stored to store the closing spring 38.
While pressing the other ends of both links 36, 37 by
By biasing the closing lever 30 in the closing direction via the closing link 36 and the tip of the blocking lever 31 is locked to the blocking hacker shaft 34, the blocking spring 39 is stored and the blocking spring 39 is stored.
Since the tip end portion of the shutoff lever 31 is biased in the shutoff direction by the shutoff lever 38, the shutoff spring 38 performs the shutoff operation.
Since the breaking operation is performed by the breaking spring 39, the load generated by the closing spring 38 can be reduced, and the device can be downsized.

Further, when the characteristics of the closing speed or the breaking speed are changed when diverted to various models, it is only necessary to change the springs according to the characteristics to be changed, which can be easily changed.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a front view of a conventional example.

[Explanation of symbols]

 1 Spindle 30 Closing Lever 31 Blocking Lever 32 Closing Hacker Shaft 34 Blocking Hacker Shaft 36 Closing Link 37 Blocking Link 38 Closing Spring 39 Blocking Spring

Claims (1)

[Claims] 1. A closing lever having a base fixed to a main shaft and rotating the main shaft in a closing direction; a closing lever having a base rotatably attached to the main shaft and rotating the main shaft in a closing direction; A closing link connected to the leading end of the closing lever, a closing link having one end connected to the leading end of the breaking lever and the other end connected to the other end of the closing link, and pressing the other ends of both links. A closing spring for urging the closing lever in the closing direction via the closing link; a breaking spring for urging the tip end of the breaking lever in the breaking direction; A spring energy storage device comprising: a closing hacker shaft that locks at the tip of a closing lever; and a breaking hacker shaft that locks at the tip of the breaking lever when the breaking spring stores energy.