JP2009099318A - Operating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operating device capable of adjusting the spring force of a torsion bar part extending to a position apart from a casing, at its casing side. <P>SOLUTION: The operating device is provided for operating a driven part while rotating a first lever 30 with torsional force accumulated in the torsion bar part 10. The first lever 30 is divided into: a fixed portion 31 fixed to a first torsion bar 11; and a rotary portion 32 rotatably supported with the axial center of the first torsion bar 11 as a rotational center and connected at its end with the driven part. By changing the size of a spacer 33 held between the fixed portion 31 and the rotary portion 32, the angle of the rotary portion 32 to the rotational center can be changed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an operating device that operates a driven part such as an opening / closing device, and more particularly to an operating device that obtains an operating force by torque stored in a torsion bar.

  Such an operating device has one or more connected torsion bars, one end of which is fixed to the casing, and the other end is rotatably supported by the casing and has a torsion bar portion capable of storing rotational torque. is doing. In a general configuration, the torsion bar portion includes two torsion bars extending in parallel.

  That is, the torsion bar portion has a first torsion bar whose one end is fixed to the casing of the operating device and a second torsion bar whose one end is fixed to the lever. The ends are connected together by being fixed to the joint member. Then, the joint member is divided so that the fixing points of the respective torsion bars can be separated, and a spacer is inserted into the divided portion, whereby the torque in a state where the first torsion bar and the second torsion bar are connected to each other. (For example, refer to Patent Document 1).

Japanese Patent Publication No.7-114091, FIG.

  The conventional operating device is configured as described above, and a joint member having a function of adjusting the spring force of the torsion bar is provided at the end of the torsion bar on the side away from the housing of the operating device. Therefore, for example, in the case of a device having a cylinder covering the torsion bar, it is necessary to provide an opening for adjusting torque in the cylinder, and a space for work is secured around the opening. Improvement has been desired because it may be a restriction on the layout of the operating device in the switchgear.

  The present invention has been made to solve the above-described problem, and can adjust the spring force of the torsion bar portion extending to a position away from the housing on the housing side, for example, a cylinder covering the torsion bar portion It is possible to obtain an operating device that does not require an opening for adjusting the body or the like and that does not require a working space around the opening.

  In order to solve the above-described problems and achieve the object, an operating device according to the present invention comprises one or more torsion bars connected to each other, and one end is fixed to the casing and the other end is rotatably supported by the casing. In the operating device that comprises the torsion bar portion and a lever connected to the other end of the torsion bar portion, and operates the driven portion by rotating the lever with the torsional force accumulated in the torsion bar portion. The lever is divided into a fixed portion fixed to the torsion bar, and a rotating portion that is rotatably supported around the axis of the torsion bar and connects the driven portion to the end portion. By changing the size of the spacer sandwiched between the rotating part, the angle formed by the rotating part with respect to the center of rotation can be changed.

  According to the operating device of the present invention, the lever provided on the housing side of the torsion bar portion includes a fixing portion fixed to the torsion bar, and a rotating portion that is rotatably supported around the axis of the torsion bar as a rotation center. By changing the size of the spacer sandwiched between the adhering part and the rotating part, the angle formed by the rotating part around the center of rotation can be changed. Adjustment of the spring force of the torsion bar portion that extends long to the position away from the housing can be performed on the side close to the housing, and there is no need to perform it on the end on the side away from the housing. If there is a body, etc., it is not necessary to provide an opening for adjustment in this cylinder, and it is not necessary to secure a space for adjustment around the cylinder, so the arrangement of the device Degree of freedom Increased.

  Embodiments of an operating device according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment FIG. 1 is a perspective view of a driving force accumulating device including an embodiment of an operating device according to the present invention. FIG. 2 is a perspective view showing details of the embodiment of the operating device according to the present invention. In FIG. 2, a part of the casing of the controller device is indicated by a one-dot chain line. In FIG. 1, the operating device 100 according to the present embodiment includes a first torsion bar 11 and a second torsion bar 12 which are rod-shaped elastic bodies. One end of the second torsion bar 12 is fixed to a fixture 21 provided on the housing 20 (FIG. 2) of the operating device. The other end of the second torsion bar 12 is fixed to the joint member 13. The joint member 13 does not have a structure for adjusting the torque of the torsion bar as provided in the conventional operating device.

  On the other hand, one end of the first torsion bar 11 is fixed to the joint member 13. The other end of the first torsion bar 11 is fixed to a rotating shaft 23, and this rotating shaft 23 is rotatably supported from a housing 20 (FIG. 2) of the operating device via a bearing 22. And the 1st lever 30 which is the structural feature of this Embodiment is attached to the front-end | tip of the 1st torsion bar 11 via the rotating shaft 23. FIG. The first torsion bar 11, the second torsion bar 12, and the joint member 13 constitute a torsion bar portion 10 that stores rotational torque.

  The first lever 30 is mechanically coupled to the second lever 41 of the energy storage device 200 via the link rod 101. The second lever 41 is fixed to the rotating shaft 46 of the accumulating large gear 45. The rotating shaft 46 is supported by bearings 42 and 43 fixed to a housing (not shown). A one-way clutch 44 is provided between the rotating shaft 46 and the accumulator large gear 45. When the accumulating large gear 45 rotates in the direction of arrow I, the rotating shaft 46 is rotated in the same direction. However, when the rotating shaft 46 rotates in the direction opposite to the arrow I direction, the rotation is not transmitted to the accumulating large gear 45. The accumulator small gear 51 is meshed with the accumulator large gear 45. The accumulator small gear 51 is rotated by the electric motor 52.

  FIG. 3 is an exploded perspective view showing details of the first lever 30. FIG. 4 is a sectional view taken along the axis of the first torsion bar 11 in the vicinity of the first lever 30. FIG. 5 is a cross-sectional view taken along line AA in FIG. The first lever 30 constituting the driven part is divided into two members, a fixing part 31 and a rotating part 32.

  The rotating portion 32 is provided on two flat plate portions 32a and 32a arranged in parallel with each other at a predetermined interval in the axial direction of the first torsion bar 11, and on the outer peripheral edge portion of the two flat plate portions 32a and 32a. And a connecting portion 32b that connects the two flat plate portions 32a and 32a. A shaft hole 32c through which the first torsion bar 11 (rotary shaft 23) is rotatably inserted in a direction perpendicular to the main surface is opened at a substantially central portion of the two flat plate portions 32a and 32a. Also, a pin hole 32d for connecting the link rod 101 is opened at the tip of the two flat plate portions 32a, 32a opposite to the connecting portion 32b. A bolt fastening hole 32e of a female screw into which a bolt 34, which is a fastening member, is screwed is screwed into the connecting portion 32b.

  The fixing portion 31 protrudes from the main body portion 31a to a position where the two flat plate portions 32a and 32a are not provided, and the main body portion 31a is disposed between the two flat plate portions 32a and 32a of the rotating portion 32. It is comprised from the protrusion part 31b extended in the axial direction of the 1st torsion bar 11 in the position. A shaft hole 31c is opened in the body portion 31a at a position corresponding to the shaft hole 32c of the rotating portion 32, and the body portion 31a penetrates the first torsion bar 11 (rotating shaft 23) through the shaft hole 31c. It is fixed. A bolt insertion hole 31d is opened in the protruding portion 31b as a flaw hole through which the bolt 34 as a fastening member is inserted.

  The spacer 33 has a rectangular flat plate shape and is disposed between the connecting portion 32 b of the rotating portion 32 and the protruding portion 31 b of the fixing portion 31. One spacer 33 is selected from a plurality of spacers having different thicknesses prepared in advance, or a predetermined number of spacers 33 are stacked and used. A bolt insertion hole 33a is opened in the spacer 33 as a flaw hole through which the bolt 34 as a fastening member is inserted. The protruding portion 31b of the fixing portion 31 and the spacer 33 are fastened to the rotating portion 32 by bolts (fastening members) 34 that pass through both and then screw into the bolt fastening holes 32e of the connecting portion 32b.

  The first lever 30 configured as described above can change the angle formed by the rotating portion 32 with respect to the axis of the first torsion bar 11 by changing the thickness (size) and the number of the spacers 33. Yes. That is, as shown in FIG. 5, when the thickness (size) and the number of the spacers 33 are changed, the rotating unit 32 changes the rotation position angle around the first torsion bar 11 as indicated by an arrow B.

  Next, the operation will be described. When the electric motor 52 is driven and the accumulator small gear 51 is rotated in the arrow G direction by a predetermined number of revolutions, the accumulator large gear 45 is rotated in the arrow rotation axis I direction by a predetermined angle. The rotating operation of the accumulating large gear 45 in the direction of arrow I is transmitted to the second lever 41 via the one-way clutch 44 and the rotating shaft 46, and the link rod 101 is moved in the direction of arrow H.

  When the link bar 101 is moved in the direction of arrow H, the first lever 30 is rotated in the direction of arrow K, and the first torsion bar 11 is twisted by a predetermined angle about its central axis. The first torsion bar 11 which is a rod-like elastic body is twisted, and the second torsion bar 12 which is a rod-like elastic body connected to the first torsion bar 11 via the joint member 13 is twisted, whereby the first and The restoring force is stored in the second torsion bars 11 and 12.

  As described above, when the first lever 30 is rotated by a predetermined angle and the driving force accumulating device enters a fully accumulating state having a predetermined restoring force, the driving power source of the electric motor 52 is cut off by a limit switch (not shown). The electric motor 52 is stopped. At this time, the 1st lever 30 is hold | maintained in the position of the above-mentioned complete accumulation state by the latch mechanism (not shown) provided in the operating device. For this reason, the restoring forces of the first and second torsion bars 11 and 12 are maintained while being stored.

  The restoring force stored in the driving force storage device is released instantly by pulling off the latch mechanism. The first and second torsion bars 11 and 12 after release are in a state where only the initial torque is stored. When the restoring force of the driving force accumulating device is released, the opening / closing operation unit of the switch connected to the first torsion bar 11 is opened or closed.

  Next, the adjustment operation of the torque of the torsion bar unit 10 will be described. At the time of the adjustment work, the lever 30 is directly connected to the driven part and the energy storage mechanism through the pin hole 32d and stopped, so the reference before and after the adjustment work is the rotating part 32 of the lever 30. When the bolt 34 is removed, the rotating portion 32 and the fixing portion 31 can be separated, and when the number or thickness of the spacers 33 sandwiched is adjusted, the fixing portion 31, the rotating shaft 23, and the end portions of the first torsion bar 11 are moved. Integrate and rotate relative to the rotating part 32. In this way, the torsion amounts of the first torsion bar 11 and the second torsion bar 12 are adjusted, and the magnitude of the torque is adjusted. By tightening the bolt 34 at the end of the adjustment operation, the spacer 33 is stably held in the first lever 30.

  As described above, in the operating device according to the present embodiment, the torque of the torsion bar can be adjusted with the first lever 30 disposed on the front surface of the operating device housing. It is also possible to make the torque adjustment by simply opening the door of the operation box, and the adjustment work at the end of the torsion bar away from the housing of the operation device as in the conventional operation device. There is no need to provide a structure or space for

  As described above, the operating device of the present invention is useful when applied to an operating device that obtains an operating force by torque stored in the torsion bar, and in particular, the torsion bar extends long to a position away from the casing. It is most suitable when applied to an operating device.

1 is a perspective view of a driving force accumulating device including an operating device according to the present invention. It is a perspective view which shows the detail of the operating device concerning this invention. It is a disassembled perspective view which shows the detail of a 1st lever. It is sectional drawing which follows the axis line of the 1st torsion bar of the 1st lever vicinity. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Torsion bar part 11 1st torsion bar 12 2nd torsion bar 13 Joint member 20 Housing | casing 21 Fixing bracket 22 Bearing 23 Rotating shaft 30 1st lever 31 Adhering part 31a Main body part 31b Projection part 31c Shaft hole 31d Bolt insertion hole 32 Rotation Portion 32a Flat plate portion 32b Connecting portion 32c Shaft hole 32d Pin hole 32e Bolt fastening hole 33 Spacer 33a Bolt insertion hole 34 Bolt (fastening member)
DESCRIPTION OF SYMBOLS 100 Operation apparatus 101 Link rod 200 Driving force accumulator

Claims (6)

A torsion bar portion composed of one or more connected torsion bars, one end fixed to the housing and the other end rotatably supported by the housing, and a lever connected to the other end of the torsion bar portion In an operating device for operating the driven part by rotating the lever with a torsional force accumulated in the torsion bar part,
The lever is divided into a fixed portion fixed to the torsion bar, and a rotating portion that is rotatably supported around the axis of the torsion bar and that connects the driven portion to an end portion. The operating device is characterized in that an angle formed by the rotating part with respect to the center of rotation can be changed by changing a size of a spacer sandwiched between the fixing part and the rotating part. The torsion bar portion has a first torsion bar fixed at one end to the casing and the other end fixed to a joint member at a position away from the casing, and one end extending so as to be parallel to the first torsion bar The operating device according to claim 1, further comprising: a second torsion bar fixed to the joint member and having the other end rotatably supported by the housing. The rotating portion includes two flat plate portions that are arranged in parallel to each other and pass through the torsion bar so as to be rotatable perpendicular to the main surface, and a connecting portion that connects the two flat plate portions,
The fixed portion has a fixed portion fixed to the torsion bar at a position sandwiched between the two flat plate portions, and a protruding portion protruding in a radial direction from the fixed portion,
The operating device according to claim 1, wherein the spacer is sandwiched between the connecting portion and the protruding portion. The said protrusion part and the said spacer are being fixed to the said rotation part by the fastening member which penetrates both and is screwed together in the female screw hole of the said connection part. The operating device according to 1. The operating device according to any one of claims 1 to 4, wherein one of the spacers selected from a plurality of spacers having different thicknesses is selected and used. The operating device according to any one of claims 1 to 4, wherein the spacer is used by stacking a desired number of spacers having a predetermined thickness.

Images