JPH0855533A - Device for spring energy storing operation - Google Patents

Abstract

PURPOSE:To achieve device miniaturization through reducing the load on in a spring by designing a device so that closing and interrupting actions are achieved by the released force of one spring. CONSTITUTION:A closing hacker shaft 33 rotates counterclockwise in response to a command to close, and an interrupting lever 31 rotates clockwise with the upper end of the lever 31 made to pass through a cut portion 36 by the released force of a spring 41, to attain an interrupted state. The closing hacker shaft 33 is rotated clockwise by the clockwise rotation of the closing lever 30, and the right end of the lever 30 is locked to the shaft 33. Then a fixed rod 32 is made to abut to the lower end of an oblong hole 40 in a connecting link 39 to regulate the rotating position of the lever 31. The lever 31 is then rotated counterclockwise, the fixed rod 32 moves within the oblong hole 40, the upper end of the lever 31 passes through the cut portion 36, an interrupting hacker shaft 35 rotates counterclockwise, and the upper end of the lever 31 is locked to the shaft 35 to compress the spring 41 to store energy, with which the closing lever 30 and the interrupting lever 31 are pressed 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 energy operation device such as a switch and a circuit breaker.

[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 denotes a closing spring having one end locked to the energy storage lever 14, and the left end locked to the locking rod 9 of the drive lever 5. 23 is the energy storage lever 1
4 is an operation handle located above 4 and fixed to the tip of the rotary shaft 13.

Reference numeral 24 is a cut-off lever which is located above the rotary shaft 13 and is movable left and right. Reference numeral 25 is a cut-off spring whose one end is locked by a fixed rod, and the other end is on the right side of the drive lever 5. It is locked to the stop 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 tip 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 right locking portion 7 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, the auxiliary lever 27 rotates counterclockwise, and the pin 28 abuts on the lower end of the slot 26, as shown by the thick arrow.
The contact portion 29 of the auxiliary lever 27 moves in sliding contact with the locking portion 19 of the locking lever 17, and urges the locking lever 17 in the clockwise direction to rotate the locking lever 17 to the right. The locking groove 18 of the stop lever 17 is disengaged from the locking rod 15, and the biasing force of the closing spring 22 and the blocking spring 25 causes the energy-accelerating lever 14 to rotate clockwise and the abutting portion 20 of the energy-accelerating lever 14 to abut. Abut the 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 moves into the long hole 3.
Abuts on the lower end of the main spindle lever 2 and rotates to the left,
The main shaft 1 rotates counterclockwise and enters the state shown by the solid line in FIG. 1, that is, the cutoff state.

[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. Therefore, there is a problem that the device becomes large. The present invention has been made in consideration of the above points, and an object of the present invention is to provide a spring energy storage device capable of reducing a load generated by a spring and downsizing the spring.

[0012]

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 shut-off lever that is freely installed and rotates the spindle in the shut-off direction, a planting rod that is planted at the tip of the shut-off lever, a make-up link whose one end is connected to the end of the make-up lever, and one end is planted. A blocking link connected to the rod, the other end of which is connected to the other end of the closing link, a connecting link whose one end is connected to one end of the closing link, and the other end of the connecting link. And a spring that presses the other ends of the closing link and the blocking link to urge the closing lever in the closing direction via the closing link and the blocking lever in the closing direction via the blocking link. When the spring is energized, the closing hook is locked at the tip of the closing lever. A shaft, when the energy-storing spring, in which a blocking peppermint shaft which engages the distal end of the blocking lever.

[0013]

In the spring energy accumulator operating device of the present invention having the above-mentioned structure, one end is connected to the other end of the closing link connected to the front end of the closing lever and the other end is connected to the planting rod at the front end of the breaking lever. Connect the other end of the cut-off link that is connected, and one end is loosely inserted into the long hole at the other end of the connecting link that is connected to one end of the closing link, and the tip of the closing lever is engaged with the closing hacker shaft. Stop, and the spring is stored by locking the tip of the shutoff lever to the shutoff hacker shaft. The spring presses the other end of the closing link and the other end of the shutoff link, and closes the closing lever through the closing link. Since the blocking lever is biased in the blocking direction through the blocking link, the closing / closing operation is performed by the release force of one spring, and the load generated by the spring is reduced. The device becomes smaller.

[0014]

EXAMPLES Examples will be described with reference to FIGS. 1 and 2. In the drawings, the same reference numerals indicate the same or corresponding ones. (Embodiment 1) First, in FIG.
Reference numeral 0 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 cutoff lever whose lower base is rotatably supported by the main shaft 1, and rotates the main shaft 1 in the cutoff direction by a left rotation via a connecting link and a closing lever 30 described later. Reference numeral 32 designates a planting rod which is planted on the upper portion of the shutoff lever 31, and 33 designates a notch portion 34.
Is a closing hacker shaft having the right end of the closing lever 30 locked, and is biased in the counterclockwise direction by a spring (not shown). Reference numeral 35 is a cut-off hacker shaft having a cutout portion 36, and the upper end of the cut-off lever 31 is locked, and is biased in a clockwise direction by a spring (not shown).

37 is a closing link having one end connected to the right side of the closing lever 30, 38 is a blocking link having one end connected to the planting rod 32, and the other end is connected to the other end of the closing link 37. There is. 39 is a connecting link having one end connected to one end of the input link 37, and 40 is a long hole formed in the other end of the connecting link 39. The rotation positions of the levers 30 and 31 are restricted. Reference numeral 41 denotes a spring located on the right side of the other ends of the closing link 37 and the blocking link 38, and presses the other ends of both links 37, 38 to the left.

Next, the operation will be described. The drawing shows a closing preparation state, in which the right end of the closing lever 30 is locked to the closing hacker shaft 33, and the upper end of the blocking lever 31 is locked to the blocking hacker shaft 35, whereby the spring 41 is compressed to store energy. Then, the spring 41 connects the closing link 37 and the breaking link 38.
Of the closing lever 3 via the closing link 37 by pressing the other end of
0 is biased in the closing direction, that is, the right rotation direction, and the blocking lever 31 is biased in the blocking direction, that is, the left rotation direction via the blocking link 38.

When the closing command is received, the closing hacker shaft 33 rotates clockwise as indicated by the thin arrow, and the right end of the closing lever 30 moves the notch 34 of the closing hacker shaft 33 by the releasing force of the spring 41. After passing through, the closing lever 30 rotates to the right and the main shaft 1 rotates to the right to enter the closing state. At this time, the connecting link 39 is moved downward by the clockwise rotation of the closing lever 30, the planting rod 32 contacts the upper end of the long hole 40 of the connecting link 39, and the rotation position of the closing lever 30 is restricted.

Next, when the cutoff command is received, the cutoff hacker shaft 35 rotates counterclockwise as shown by the broken line arrow, and the upper end of the cutoff lever 31 is notched by the urging force of the spring 41 via the cutoff link 38 and the planting rod 32. The blocking lever 31 rotates counterclockwise after passing through the portion 36, and the coupling link 3 is rotated by the blocking lever 31 rotating counterclockwise.
9. The main shaft 1 rotates counterclockwise through the closing lever 30 to be in the cutoff state. When the closing lever 30 rotates counterclockwise, the right end of the closing lever 30 passes through the notch 34, the closing hacker shaft 33 rotates counterclockwise, and the right end of the closing lever 30 locks on the closing hacker shaft 33. . At this time, the connection link 3
The planting rod 32 comes into contact with the lower end of the elongated hole 40 of 9 to restrict the rotation position of the blocking lever 31.

Then, the cutoff lever 31 is rotated clockwise as indicated by the thick line arrow, the planting rod 32 is moved through the long hole 40, the upper end of the cutoff lever 31 passes through the notch 36, and the cutoff hacker shaft 35 is moved to the right. By rotating and engaging the upper end of the shutoff lever 31 with the shutoff hacker shaft 35, the spring 41 is compressed to store energy, and the closing lever 30 and the shutoff lever 31 are biased to the ready state for closing.

(Embodiment 2) Next, FIG. 2 showing Embodiment 2
1 is different from FIG. 1 in that the spring 41 locked to the other ends of the closing link 37 and the cutoff link 38 is located on the left side, and the spring 41 is stretched to store energy.

[0021]

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 37 is connected to the tip of the closing lever 30, and the other end of the closing link 38 is connected to the planting rod 32 of the end of the breaking lever 31.
Of the connecting link 39, which is connected to the other end of
Is loosely inserted, the tip of the closing lever 30 is locked to the closing hacker shaft 33, and the tip of the blocking lever 31 is locked to the blocking hacker shaft 35 to store the spring 41.
The other end of the closing link 37 and the other end of the blocking link 38 are pressed to bias the closing lever 30 in the closing direction via the closing link 37 and the blocking lever 31 in the closing direction via the blocking link 38. By doing so, the closing and closing operations are performed by the urging force of one spring 41, the generated load of the spring 41 can be reduced, and the device can be downsized. .

[Brief description of drawings]

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

FIG. 2 is a front view of a second embodiment of the present invention.

FIG. 3 is a front view of a conventional example.

[Explanation of symbols]

 1 Spindle 30 Closing Lever 31 Blocking Lever 32 Planting Rod 33 Closing Hacker Shaft 35 Blocking Hacker Shaft 37 Closing Link 38 Blocking Link 39 Connection Link 40 Long Hole 41 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 breaking lever having a base rotatably attached to the main shaft and rotating the main shaft in a breaking direction; Of the injection rod, one end of which is connected to the tip of the injection lever, one end of which is connected to the injection rod, and the other end of which is connected to the other end of the injection link. Cut-off link, a connecting link having one end connected to one end of the closing link, a long hole formed at the other end of the connecting link and into which the planting rod is loosely inserted, the closing link, the blocking A spring that presses the other end of the link to urge the closing lever in the closing direction via the closing link, and urges the blocking lever in the blocking direction via the blocking link; When energized, lock on the tip of the closing lever And turned peppermint shaft, when the energy-storing of the spring, the spring energy storing operating system that includes a blocking peppermint shaft which engages the distal end of the blocking lever.