JPH077105U - Multi-directional control switch - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a multidirectional control switch capable of arbitrarily switching between large movement (automatic return state) and accurate positioning of a driven object by an operation lever. [Structure] A spring 5 is arranged between a conical spring seat 4 and a fixed spring seat 6 which are loosely inserted and arranged below a spherical fulcrum 3a of an operating lever-3, and U-shaped links 7 and 8 are provided on both sides of a base end portion. The links 7 and 8 and washers 14 and 1 are provided inside the panel box 1 on the shaft opposite to the electric signal converting means 11 and 12 attached to the shaft.
6 and the friction plates 17 and 18 having a large friction coefficient are sandwiched between them and attached, and a spring 2 is provided outside the panel box 1.
Multidirectional control characterized in that means 1 and 24 are provided for attaching these links to the panel box 1 in a state of being always urged and means 34 and 35 for pressing the springs 21 and 24 in a direction opposite to the urging direction are provided. switch.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is to control the movement of a moving table (X / Y table) on which a sample to be analyzed by a microscope is moved in the X and Y directions, or to drive an object such as a civil engineering / construction machine or an unmanned robot. A multi-directional control switch for controlling the movement of the vehicle, more specifically, these driven objects are moved by a large amount in the X and Y directions to stop, and then moved slightly from this stopped state, or immediately when necessary, to the neutral position. The present invention relates to a multi-directional control switch having a brake function that can be automatically restored to.

[0002]

[Prior art]

 The multi-directional control switch moves the operating lever by tilting the operating lever back and forth and left and right from a neutral position around a point in the middle, and extracting the electric signal corresponding to the amount of displacement at that tilt position (tilt angle). -It is possible to control the amount of movement of a driven object such as a bull.

FIG. 5 is a perspective view of an example of a conventional multidirectional control switch. In this multi-directional control switch, U-shaped links 42 and 43 are crossed at a right angle and the shafts of the respective base ends are rotatably attached to the panel box 40, and the intermediate part of the operation lever 41 is a spherical fulcrum. As the operation lever 41 tilts, the shafts at both ends of the links 42 and 43 are rotated and the springs 44 and 45 are inserted. The urging force of is applied, and when it is released, it automatically returns to the original neutral position.

One of the shaft portions of the links 42 and 43 is adapted to drive potentiometers 46 and 47 attached to the panel box 40, respectively, and the tilt angles are set in accordance with the tilting of the operation lever 41. The corresponding electric signal is taken out to control the amount of movement of the driven object in the X and Y directions. Incidentally, a potentiometer 48 is also attached to the tip of the operation lever 41 in this multi-directional control switch so that the driven object can be moved and controlled also in the Z direction. As a multi-directional control switch in which a U-shaped link is cross-arranged on a panel box and an electric signal is taken out by an operating lever, a steering rod mechanism disclosed in Japanese Patent Laid-Open No. 59-103305 or an actual open sho-54- A multi-directional operation type handle switch disclosed in No. 135678 is known.

[0005]

[Problems to be solved by the device]

 As described above, the multi-directional control switch controls the movement of the driven object in the X direction and the Y direction by tilting the operation lever 41 by the operator, but when the operation lever 41 is tilted, the link 42 is moved. , 43 and the panel box 40 actuate the springs 44, 45 to return the operating lever 41 to its original position. When the operating lever 41 is released, the links are automatically restored. Return to the neutral position. Normally, the lever angle signal is used to control the moving speed and the moving position of the driven object. In the case of moving speed control, the amount of operation of the operating lever corresponds to the speed, and large movements are easy. For this reason, in order for the operator to accurately stop the driven object at an intended position in the X and Y directions, it is often the case that the micro operation of the operation lever is repeated, and it takes time to determine the position. In addition, the multi-directional control switch that does not return to the neutral position used the signal of the tilt angle of the operating lever to control the moving position of the driven object (the object moves and stops by the amount of operating the operating lever). In this case, accurate positioning is easy to perform, but movement beyond the operating range of the operating lever cannot be performed.

The present invention has been made in view of the above problems, and its object is to set a driven object to any position in the X and Y directions by moving speed control (speed control mode). The position to be moved (control mode) to perform precise positioning, that is, a large movement of the driven object and a break of the operating lever due to the automatic return state of the operating lever. It is an object of the present invention to provide a multidirectional control switch having a break function capable of arbitrarily switching the accurate positioning and the like depending on the holding state.

[0007]

That is, in order to solve the above problems, the present invention cross-disposes a U-shaped link in which a shaft portion on both sides of a base end portion is rotatably supported in a panel box. At the same time, the tip of the operation lever provided with a spherical fulcrum on the upper base plate of the panel box is passed through the intersection of these links, and the electrical signal conversion is attached to one of the shafts of the base end of the U-shaped link. In the multidirectional control switch adapted to take out an electric signal by means, a conical spring seat is loosely inserted into the operation lever in a hole formed in the base plate below the spherical fulcrum of the operation lever. Further, another spring seat is fixedly provided on the operation lever at a predetermined interval, and a spring is arranged between the conical spring seat and the fixed spring seat, and the U-shaped link base end is provided. Electrical signal conversion means attached to the shaft on both sides of the part A friction plate is sandwiched between the link and the washer on the inner side of the panel box of the shaft on the opposite side, and at the outer side of the panel box, these links and friction plates are constantly urged to the panel box. It is characterized in that it is provided with means for mounting the spring in a state and pressing the spring in a direction opposite to the urging direction.

[0008]

[Action]

 The operation when the multidirectional control switch of the present invention is used as the above means will be described with reference to the attached drawings (FIG. 4) and the reference numerals. When the electromagnetic solenoid 32 (33) is turned off and the operation lever-3 is tilted and stopped at a certain position while the frictional force of the friction plate 17 (18) is acting, the operation lever-3 is caused to have the spring. The momentum for returning to the original neutral position by the biasing force of 5, that is, the moment for rotating the link 7 (8) to the original state acts, but the friction plate 17 (18) is used. The frictional force between the washer 14 (16) and the link 7 (8) is stronger than the return moment M, so that the link 7 (8) is stopped with the rotation tilted.

Further, when the operation lever-3 is returned to the neutral position, the switch of the solenoid 32 (33) is turned on, the shaft 32a (33a) of the solenoid 32 (33) is actuated, and the lever 34 (33) is activated. 35) presses the end of the flanged bearing 20 (23). Then, the spring 21 (24) that exerts an urging force on the link 7 (8) in the direction of the panel box 1 is pressed, and the urging force that presses the friction plate 17 (18) does not act, and the friction of the friction plate is reduced. No force acts, and the urging force of the spring 5 causes the operation lever-3, that is, the return moment for returning the link 7 (8) to the original neutral position to easily return to the original neutral position. To do.

When the operation lever 3 is tilted by setting the driven object as the speed control mode, the link 7 (8) also rotates accordingly and the electric signal converting means (potentiometer) 11 (12). ), An electric signal proportional to the rotation angle is taken out, and the signal moves in the X direction or the Y direction at a speed according to the tilt angle of the operation lever-3. Then, the driven lever is tilted by using the driven object as a position control mode, and when the operator releases the operation lever-3, the driven object is stopped at the moved position in the X or Y direction. In this case, if it is desired to move the driven object accurately to the required position, first move the driven object in the speed control mode with the friction force of the friction plate not acting, and then move it near the desired position. When the frictional force of the friction plate is applied, the position control mode is switched to and the operation lever 3 is used to finely control the operation so as to proceed to the next step.

[0011]

【Example】

 Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. 1 is a view of the multidirectional control switch of the present invention seen from the bottom side, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG.

A base plate 2 having a concave portion 2a formed in the central portion is attached to the upper portion of the panel box 1, and an operation lever 3 having a spherical fulcrum 3a provided in the concave portion 2a of the base plate 2 is penetrated and arranged. I am doing it. The spherical fulcrum 3a is held by a bearing 3b so that the operation lever 3 can be tilted and rotated (tilted) in an arbitrary direction.

A conical hole 2b is formed below the base plate 2 of the spherical fulcrum 3a of the operation lever-3, and a conical (umbrella) spring seat 4 is provided in the hole 2b. 3, a spring seat 6 is fixedly provided at a predetermined interval, and a spring 5 is arranged between the conical spring seat 4 and the fixed spring seat 6.

When the operation lever 3 is attached to the base plate 2 in the above state and tilted in an arbitrary direction, the end portion of the conical spring seat 4 is positioned below the base plate 2 as shown in FIG. The conical spring seat 4 relatively moves on the operation lever 3 in a state of being locked to the portion to compress the spring 5 and approaches the fixed spring seat 6. Therefore, the operation lever-3 is acted on by the biasing force of the spring 5, as shown by the arrow, to return to the original neutral position.

Next, as shown in FIG. 2, U-shaped links 7 and 8 are arranged at a right angle below the base plate 2 inside the panel box 1, and the operation lever-3 is arranged at a crossing point. The tip is penetrated. The shafts on both sides of the base end of the link 7 are rotatably attached to the panel box 1, and the shaft 7a on one side thereof is a potentiometer 11 (driven by the driven body) attached to the outside of the panel box 1. It is directly connected to an electric signal converting means for extracting an electric signal for controlling the movement of the object in the X direction, which will be referred to as an X direction potentiometer 11 hereinafter), and the shaft 7b on the other side is inside the panel box 1. A friction plate 17 having a large friction coefficient is sandwiched and mounted between the link 7 and the two washers 13 and 14, and a bearing 19 and a flanged bearing 20 are fitted to the outside of the panel box 1 and a spring 21 is attached to the panel box 1. The link 7 is arranged between the flanged bearings 20 so that the link 7 is always biased toward the panel 1. In this case, the urging force of the spring 21 acts on the friction plate 17 and the frictional force is stronger than the moment M for returning the operating lever-3 to the original position, so that the link 7 is forcibly forced. Once tilted, the rotation stops and remains tilted.

Further, as shown in FIG. 3, the shafts on both sides of the other link 8 are rotatably attached to the panel box 1, but the shaft 8a on one side thereof is the panel box 1 Directly connected to the potentiometer 12 mounted outside (electric signal conversion means for extracting an electric signal for controlling movement of the driven object in the Y direction, hereinafter referred to as Y direction potentiometer 12) and the other side The shaft 8b is mounted on the inside of the panel box 1 by sandwiching a friction plate 18 having a large friction coefficient between the link 8 and the two washers 15 and 16, and on the outside of the panel box 1 a bearing 22 and a flanged bearing. 23 is fitted and a spring 24 is arranged between the panel box 1 and the flanged bearing 23, and the link 8 is attached in a state in which it is always biased toward the panel 1. Also in this case, the urging force of the spring 24 acts on the friction plate 18, and the frictional force is stronger than the moment M for returning the operation lever-3 to the original position. When it is rotated and tilted, it stops while it remains tilted. Incidentally, the operation grip of the operation lever 3 is on the back side of the panel box 1 (corresponding to the back side of the paper surface) as viewed from FIG. 1, and the operator can manually tilt the operation in any direction. Further, the links 7 and 8 are provided with grooves 7a and 8a at their central portions, respectively, so that the tips of the links can be moved as the operation lever 3 is tilted.

Next, a mounting plate 30 having an electromagnetic solenoid 32 mounted thereon and a mounting plate 31 having an electromagnetic solenoid 33 mounted thereon are mounted on the panel box 1, and a shaft 32 a of the solenoid 32 is provided with one of the links 7 A lever 34 for pressing the flanged bearing 20 mounted on the outer side of the panel box 1 of the shaft is attached to the shaft 33a of the solenoid 33, and a flanged bearing 23 mounted on the outer side of the panel box 1 of the shaft of one of the links 8 is mounted. The levers 35 for pressing are attached respectively, and the levers 34, 35 are provided with bolts 36, 36 for adjusting the pressing force.

The structure of the multidirectional control switch of the present invention is as described above. Next, its operation will be described. When the electromagnetic solenoid 32 (33) is turned off and the operation lever-3 is tilted and stopped at a certain position while the frictional force of the friction plate 17 (18) is acting, the operation lever-3 is caused to have the spring. The momentum for returning to the original neutral position by the biasing force of 5, that is, the moment for rotating the link 7 (8) to the original state acts, but the friction plate 17 (18) is used. The frictional force between the washer 14 (16) and the link 7 (8) is stronger than the return moment M, and the link 7 (8) is stopped with the rotation tilted state. Therefore, when the driven object (for example, the XY table) tilts the operation lever-3, the links 7 and 8 rotate accordingly, and an electric signal proportional to the rotation angle is extracted from the potentiometers 11 and 12. , X direction or Y direction.

Next, when it is desired to return the driven object to the original neutral position, the solenoid 32 (33) is turned on and the shaft 32a (33a) of the solenoid 32 (33) is turned on. The lever 34 (35) presses the end of the flanged bearing 20 (23). Then, the spring 21 (24) that applies the urging force to the panel 1 direction is pressed against the link 7 (8), and the pressure that presses the friction plate 17 (18) does not operate. Then, the frictional force between the friction plate 17 (18) and the washer 14 (16) and the link 7 (8) disappears, and the urging force of the spring 5 causes the operation lever-3, that is, the link 7 (8) to operate. The returning moment that tries to return to the neutral position acts to easily return to the original neutral position.

When the operation lever 3 is tilted by setting the driven object as the speed control mode, the link 7 or 8 also rotates accordingly and the electric signal converting means (potentiometer) 11 or 12 is rotated. An electric signal proportional to the rotation angle is taken out from the motor, and the electric signal is moved in the X or Y direction at a speed according to the tilt angle of the operation lever-3. Then, the driven lever is tilted by using the driven object as a position control mode, and when the operator releases the operation lever-3, the driven object is stopped at the moved position in the X or Y direction. In this case, if it is desired to move the driven object accurately to the required position, first move the driven object in the speed control mode with the friction force of the friction plate not acting, and then move it near the desired position. When the frictional force of the friction plate is applied, the position control mode is switched to and the operation lever 3 is used to finely control the operation so as to proceed to the next step. Needless to say, this multidirectional control switch can be used as a control switch for only the X direction by removing the control device for the Y direction.

[0021]

[Effect of device]

 Since the multidirectional control switch of the present invention has the structure as described in detail above, the driven object can be largely moved in the X and Y directions as a speed control mode, or as a position control mode. It is possible to add a convenient function of stopping at that position and moving from that state to the next step. Further, when it is desired to return the operation lever from the tilted and stopped state to the original neutral position, it can be immediately and automatically returned by operating the solenoid. Therefore, it is possible to provide a multi-directional control switch that can control the movement of the driven object to the intended position quickly and accurately by controlling the rough movement of the driven object and the fine adjustment to move it slightly. .

[Brief description of drawings]

FIG. 1 is a bottom view of a multidirectional control switch according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

3 is a cross-sectional view taken along the line BB of FIG.

FIG. 4 is a view showing a state in which the operation lever is tilted in FIG.

FIG. 5 is a perspective view of a conventional multidirectional control switch.

[Explanation of symbols]

1 panel box 2 base plate 3 operation lever 3a spherical fulcrum 4 conical spring seat 5 spring 6 spring seat 7, 8 link 11, 12 potentiometer 14, 16 washer 17, 18 friction plate 20, 23 flanged bearing 21 , 24 springs 30, 31 mounting plates 32, 33 electromagnetic solenoids 34, 35 levers

Claims (1)

[Scope of utility model registration request] 1. A U-shaped link, which rotatably supports shafts on both sides of a base end, is cross-arranged on a panel box, and a spherical fulcrum is provided on an upper base plate of the panel box at the crossing position of these links. In the multidirectional control switch, an electric signal is taken out by an electric signal converting means attached to one of the shaft portions of the U-shaped link base end portion through the distal end portion of the operation lever provided with the operation lever. A conical spring seat is loosely inserted into the operation lever and arranged in a hole formed in the base plate below the spherical fulcrum of
Further, another spring seat is fixedly provided on the operation lever at a predetermined interval, and a spring is arranged between the conical spring seat and the fixed spring seat, and both ends of the U-shaped link base end portion are provided. The friction plate is sandwiched between the link and the washer inside the panel box of the shaft opposite to the electric signal converting means attached to the shaft, and the link and the friction plate are attached to the outside of the panel box by a spring. Is provided so as to always urge the panel box against the panel box, and means for pressing the spring in a direction opposite to the urging direction is provided.