JP2000222985A - Switch operating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operating device of a switch with a small size, high output, and a low price, capable of obtaining two-way rotation in an output shaft, stopping the output shaft in plural positions, making an additional connection mechanism between a switching part and the operation device unnecessary. SOLUTION: Ends of one end of torsion springs 1, 2 are connected with levers 3, 4 and a link 5, a gear 6 is installed at the other end of the torsion spring 1, engaged with a gear 7, and connected to an engine 10 through gears 8, 9. A gear 11 is installed at the other end of the torsion spring 2, engaged with a bevel gear 13 installed at one axial end of an output shaft 12, and a bevel gear 22 is installed in the other axial end of the output shaft 12. A latch mechanism for restricting the output shaft 12 before operation is installed in a latch box 16, a releasing mechanism for releasing latch of the torsion springs 1, 2 energized is installed in a gear 15 installed through a bearing 14, and energized force is released at once to drive the output shaft 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-power, small-sized switchgear operating device, and more particularly, to a plurality of contacts that can rotate the output shaft forward and reverse and stop the rotational position at a plurality of positions. The present invention relates to a switch operating device that can provide a simple and inexpensive switchgear configuration.

[0002]

2. Description of the Related Art Conventionally, as a device for opening and closing a switch at a high speed, an operating device for accumulating a spring and performing an opening / closing operation by using its releasing force is well known. Japanese Patent Application Laid-Open No. 62-262325 discloses a technique for providing a small and high-output switch operating device which stores a spring with a small force and releases the spring with a large force. .

[0003]

However, in the conventional switch operating device as described above, the output shaft can be stopped at a plurality of positions, but only an output of one-way rotation can be obtained. Therefore, a multi-position switch with multiple contacts, such as a three-point rotary disconnector, cannot be handled as it is, and a new connecting mechanism must be added between the switch and the operating device to support it. Thus, there is a problem that the configuration is complicated and the cost increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. The output shaft can rotate in both forward and reverse directions, and the output shaft can be stopped at a plurality of positions. It is another object of the present invention to provide a small and inexpensive operating device for an opening / closing device that does not require a new coupling mechanism between the opening / closing portion and the operating device and that can obtain high output.

[0005]

An operating device for a switchgear according to the present invention comprises an output shaft, first and second torsion springs arranged in parallel with each other, and one of a first and a second torsion spring. A first torque transmitting means provided between the end portions for transmitting torque in the same direction therebetween, a second torque transmitting means for transmitting torque to the other end of the first torsion spring, A power applying means capable of applying a bidirectional rotational force to the first rotational force transmitting means; and a second torsion spring accumulating force of the first and second torsion springs which are energized by receiving the rotational force of the power applying means. A third torque transmitting means for transmitting the power from the other end of the spring to the output shaft, and retains the accumulating force of the first and second torsion springs biased by the torque of the power applying means. When the force reaches a required level, the accumulated force is released to the output shaft at a time via the third torque transmitting means. The output shaft is constructed by an output shaft holding rotation means rotatable in a predetermined angular directions.

Further, the output shaft holding and rotating means is provided around the output shaft, and the first and second stopper portions for regulating the stop position before the operation of the output shaft are provided inside the output shaft, and the output shaft is stopped when the operation of the output shaft is completed. A frame body having at least a third stopper part on the first stopper part side and a fourth stopper part on the second stopper part side for regulating the position, and a key connected to the output shaft of a portion surrounded by the frame body A latch mounting body having a projecting portion projecting in the radial direction, and a pair of members rotatably attached to the projecting portion by projecting respective tips on both sides along the output shaft of the projecting portion. Before the operation of the output shaft, each end is elastically held and locked by the first and second stoppers. When the operation of the output shaft is completed, each end is elastically held and at least the first end is stopped.
And an output shaft restraining means having a pair of latches locked to the third stopper portion or the second and fourth stopper portions. The output shaft is engaged with the second torque transmitting means via a bearing. A tripper holder rotatably provided, and acts on one of a pair of latches that are implanted in the tripper holder and that are restricted from moving by being rotated together with the stopper, and the stopper is used as a stopper. And a tripping roller having a tripping roller. Further, the first torque transmitting means is provided with a link mechanism.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, an operation device of a switching device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an operating device of an opening / closing device according to Embodiment 1 of the present invention, FIG. 2 is an enlarged perspective view of an output shaft holding / rotating portion of the operating device of FIG. 1, and FIG. FIGS. 3A and 3B are front views illustrating an operation state of an output shaft holding and rotating unit as viewed from an output shaft end side, where FIG. 3A illustrates a state before operation of an operation device, and FIG. FIG. 3C shows a state in which the output shaft operates clockwise, and FIG. 3C shows a state in which the output shaft operates counterclockwise. In FIG. 1, torsion springs 1 and 2 serving as driving sources of the operating device are arranged in parallel with each other, and a lever 3 is provided at one end of the torsion spring 1 and a lever 4 is provided at one end of the torsion spring 2. The levers 3 and 4 are attached to each other, and are connected by a link 5 so that the levers 3 and 4 can rotate around respective axes of the torsion springs 1 and 2. A gear 6 is keyed to the other end of the torsion spring 1, and the gear 6 is engaged with the gear 7 and a gear 8 mounted on the same shaft as the gear 7.
Are engaged with a gear 9 attached to a shaft end of a motor 10 capable of bidirectional rotation. A gear 11 is keyed to the other end of the torsion spring 2, and the gear 11 is engaged with a gear 13 keyed to the output shaft 12. A first bevel gear 22 is attached to an output-side shaft end of the output shaft 12, and the first bevel gear 22 is attached to an end of a shaft 24 arranged in an upward direction perpendicular to the output shaft 12. Second bevel gear 2
3 is engaged. A switch 26 of a switch 25 with two contacts is attached to the other shaft end of the shaft 24, and the contact blade 26 a of the switch 26 contacts the contact 27 or the contact 28 depending on the direction in which the shaft 24 rotates. As a result, a predetermined circuit (not shown) is formed.

As shown in FIG. 2, the output shaft 12 has first to fourth stopper portions 16b to 16e formed in a through hole 16a.
The latch shaft 16 is provided so as to penetrate the inside of the latch box 16 having a projection. The output shaft 12 located in the through hole 16a is fitted with a latch mount 17 having a projection 17a and seats 17b and 17c on the left and right sides thereof. A latch 18 and a latch 19 are attached to the protruding portion 17a by two pins 18a, 19a inserted in the same axial direction as the output shaft 12 on the side along the output shaft 12 of the protruding portion 17a. It is attached to the left or right side with its tip protruding, and can be rotated around the pins 18a and 19a. A compression spring 20 is disposed between the seat 17b and the latch 18 and between the seat 17c and the latch 19 to press and support the latches 18 and 19 (not shown; see FIG. 3A), and the output shaft. Before the operation 12, the latch 18 is locked by the first stopper 16b, and the latch 19 is locked by the second stopper 16c at the distal end, thereby preventing the rotation of the output shaft 12. At the end of the operation of the output shaft 12, when the output shaft 12 is clockwise, the tip of the latch 19 is locked by the stopper 16e,
When the output shaft 12 is counterclockwise, the tip of the latch 18 is locked by the stopper 16d. Further, a gear 15 is provided on the output shaft 12 near the latch box 16 via a bearing 14, and a trip roller 21 implanted on a side surface of the gear 15 is provided above the latch 18 or 19. Protruding, rotating together with the gear 15 and a latch 18 or 19
Is pushed down to release it from the stopper that regulates the movement of the tip.

Next, the operation of the operating device of the opening and closing device will be described with reference to the drawings. Now, as shown in FIG. 1, when the electric motor 10 is driven and rotates in the direction of the arrow indicated by the dotted line,
The gear 8 engaged with the gear 9 attached to the shaft end, the gear 7 attached coaxially, and the gear 6 engaged with the gear 7 are sequentially decelerated and rotated in the directions indicated by the dotted lines, respectively. start. Then, the rotational force is transmitted to the torsion spring 1 which is keyed to the gear 6, and further transmitted to the torsion spring 2 via the lever 3, link 5 and lever 4, and both the torsion spring 1 and the torsion spring 2 are indicated by dotted lines. The torsion spring 2 is urged in the direction of the arrow shown to rotate the gear 11 to which the torsion spring 2 is keyed in the same direction. However, as shown in FIG. 3A, the movement of the tips of the latches 18 and 19 attached to the latch attachment 17 fitted to the output shaft 12 is restricted by stoppers 16 b and 16 c in the latch box 16. Since the output shaft 12 is locked, the gear 1 is connected via the gear 13 attached to the output shaft 12.
1 is also locked, and the torsion springs 1 and 2 continue to be energized by the electric motor 10 during that time. However, the gear 15 mounted on the output shaft 12 via the bearing 14 and engaged with the gear 6 also rotates in the direction of the arrow shown by the dotted line,
The trip roller 21 implanted on the side of the gear 15 is also shown in FIG.
The tip of the latch 18 is gradually pushed down by moving the dashed-dotted line shown in (a) in the direction of the arrow, and the tip of the latch 18 is engaged with the stopper 16b when the torsion springs 1 and 2 are charged. , And the output shaft 12 is temporarily rotated in the direction of the arrow shown by the solid line by the combined biasing force of the torsion springs 1 and 2, and the leading ends of the latches 18 and 19 shown in FIG. The second stopper portions 16b and 16d are locked at the positions regulated respectively. In the above operation,
The rotation of the output shaft 12 is transmitted to the changeover switch 26 via the bevel gears 22 and 23 and the shaft 24, and the contact blade 26a and the contact 27
Are contacted to form a required electric circuit (not shown).

The timing at which the tripping roller 21 trips the latch 19 can be adjusted by appropriately selecting the number of teeth of the gears 6 and 15. Further, as described above, since the structures of the latches 18 and 19 are symmetrical, if the rotation direction of the electric motor 10 is driven in the opposite direction, the rotation direction of the output shaft 12 also becomes the opposite direction. It goes without saying that another electrical circuit can be easily formed by bringing the contact blade 26a into contact with the contact 28 (not shown). The operation state in the output shaft holding and rotating unit in this case is as shown in FIG. The stop position of the output shaft 12 can be selected at an arbitrary position by appropriately arranging the number of stoppers and the installation interval. The latches 18 and 19 are pressed by a compression spring 20. Although what is supported is shown, the pin 18
A torsion spring may be attached to each of a and 19a to similarly press and support (not shown). Note that the first torsion spring is the torsion spring 1, the second torsion spring is the torsion spring 2, the power applying means is the electric motor 10,
Meaning respectively. Further, the first torque transmitting means including the levers 3 and 4 and the link 5 includes the gears 6, 7, 8 and 9, and the second torque transmitting means includes the gears 11 and 13 and the third torque transmitting means includes the gears 11 and 13. Are transmitted by the latch box 16, the latch mount 17, the latches 18, 19 and the compression spring 20.
The output shaft restraining means includes the bearing 14 and the gear 15, and the tripping tool holder includes the tripping tool holder and the tripping roller 21, and the latching means includes the output shaft restraining means and the latching mechanism. The output shaft holding / rotating means includes the removing means.

[0011]

The present invention is configured as described above.
The following effects are obtained. First and second torsion springs, which are drive sources for the output shaft, are arranged in parallel with each other and connected by a first torque transmitting means, so that the accumulated forces of the torsion springs can be combined and taken out in series. In addition, a power connection means capable of providing a bidirectional rotation force and a holding rotation means capable of supporting the bidirectional rotation of the output shaft are provided, so that a special connection is provided between the operation device and the applicable opening / closing device. An output shaft can be stopped at a plurality of positions without adding a mechanism, and a compact and inexpensive switch operating device capable of producing high output can be obtained. Further, at least the first
Since the third stopper portion on the stopper portion side and the fourth stopper portion on the second stopper portion side are provided, the output shaft can be stopped at more positions, which is suitable for a multi-position switch. A switch operating device is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of an operating device of an opening / closing device according to Embodiment 1 of the present invention.

FIG. 2 is an enlarged perspective view of an output shaft holding and rotating portion of the operation device of FIG. 1;

FIG. 3 is a front view showing an operation state in an output shaft holding / rotating section viewed from an output shaft end side in FIG. 2;

[Explanation of symbols]

1, 2 torsion spring, 3, 4 lever, 5 link, 6, 7, 8, 9, 11, 13, 15 gear, 10
Motor, 12 output shafts, 14 bearings, 16 latch box, 16a first stopper portion, 16b second stopper portion, 16c third stopper portion, 16d
4th stopper portion, 17 latch mounting body, 1
8, 19 latch, 20 compression spring, 21 release roller.

Claims (3)

[Claims] 1. An output shaft, first and second torsion springs arranged in parallel with each other, and a rotational force provided between one end of each of the first and second torsion springs and arranged in the same direction therebetween. First torque transmitting means for transmitting torque, second torque transmitting means for transmitting torque to the other end of the first torsion spring,
A power applying means capable of applying a bidirectional rotational force to the first torque transmitting means, and an accumulating force of the first and second torsion springs which are energized by receiving the rotational force of the power applying means. Third torque transmitting means for transmitting the other end of the second torsion spring to the output shaft, and accumulating energy of the first and second torsion springs biased by the torque of the power applying means; When the stored power reaches a required level, the stored power is released to the output shaft via the third torque transmitting means at a time, and the output shaft is rotated at a predetermined angle. A switch operating device comprising an output shaft holding / rotating means rotatable in a direction. 2. An output shaft holding / rotating means provided around an output shaft, the first and second stopper portions for regulating a stop position before the operation of the output shaft, and at the end of the operation of the output shaft. A frame body having at least a third stopper portion on the first stopper portion side and a fourth stopper portion on the second stopper portion side for regulating the stop position of the first and second stopper portions; A latch mounting body having a protruding portion that is keyed to the output shaft and protruded in the radial direction, and each tip protrudes on both sides of the protruding portion along the output shaft so that the protruding portion is rotatable. A pair of members attached to each other, wherein before the operation of the output shaft, each of the distal ends is elastically held and locked by the first and second stopper portions; Part is held elastically so that at least the first and third An output shaft restraining means having a pair of latches which are engaged with the stopper portion or the second and fourth stopper portions, and which is engaged with the second rotational force transmitting means via a bearing to the output shaft. A tripping tool holder that is rotatably provided, and acts on one of the pair of hooks that are implanted in the tripping tool holder and are restricted from moving by being rotated together. 2. A switch operating device according to claim 1, further comprising a latch releasing means having a releasing roller for releasing from said stopper portion. 3. The apparatus according to claim 1, wherein the first torque transmitting means includes a link mechanism.
Or the switch operating device according to claim 2.