JPH0720745Y2 - Operating lever device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order.

A. Industrial field of use B. Outline of the device C. Conventional technology D. Problems to be solved by the device E. Means for solving the problem F. Action G. Example G _1. Outline of operating lever device Structure and explanation of its use example G ₂ Structure of operating lever G ₃ Structure of torque adjusting means G ₄ Structure of movement restricting means G ₅ Structure of operating mechanism G ₆ Structure of operator G ₇ Example H. Effect of the invention A. Industrial application field The present invention has a pair of operating levers, and by moving (shifting) these operating levers, each electric signal is changed, and different controlled devices are controlled. The present invention relates to an operation lever device in which the operation of (1) is independently controlled, and in particular, an operation force necessary for moving the operation lever can be easily adjusted.

B. Outline of the Invention The present invention includes a pair of operation levers that generate a pair of electric signals that change in accordance with each movement, and a torque adjusting means that adjusts an operation force required to move the operation levers. By operating the pair of operation levers, the operation of different controlled devices can be independently controlled by the respective electric signals, and the operation force necessary for moving the pair of operation levers is adjusted. In the operating lever device, the torque adjusting means is provided in common to the pair of operating levers and is arranged so that the torque can be adjusted from the operating lever side. The torque of the operating lever can be easily and easily adjusted according to the preference of the operator.

C. Conventional Technology In a commercial VTR device or the like, the operating lever for controlling the tape speed generally changes the electric (control) signal according to the movement as shown in FIGS. Controls the operation of each of the two controlled devices, controls the first mode of the device in one moving direction with the predetermined moving position as a boundary, and controls the first mode of the device in the other moving direction. A pair of operating levers 101 and 101 for controlling the two modes (one is not visible because the other is hidden behind the other in the figure), and an operating force for moving these operating levers 101 and 101, that is, a torque adjusting means 102 for adjusting the torque. , At a predetermined moving position of the operating levers 101, 101, at least one operating lever 101, 10 from the other
(1) movement restricting means (103) for restricting the movement, and the movement restricting means
An operation mechanism 104 for mutually changing the control state 103 to the regulation state and the regulation release state, and an operator 105 for operating the operation mechanism 104 are provided, and the torque adjusting means 102 controls the operation levers 101, 101.
The torque is adjusted.

The torque adjusting means 102 is a friction plate 107 that is pressed against one side of the device frame 106 to generate a friction force, and the friction plate 1
07 is attached to one end side and the other end side is the rotating shaft.
A friction plate support arm 109 attached to the rotary shaft 108 and rotated by following the rotation of the rotary shaft 108;
09 to the friction plate 107, the pressing force adjusting screw 110 screwed to one end of the rotating shaft 108 for pressing the friction plate 107 to one side of the device frame 106.
By tightening the pressing force adjusting screw 110, the friction generated by the friction plate 107 and one side surface of the apparatus frame 106 is adjusted.

A knob portion 111 is provided on one end side of the operation levers 101, 101, and the operator 105 is attached to one side portion of the knob portion 111. Then, when the operator 105 is pressed, the force causes the operation pin 104 as the movement restricting means 103 to be pushed down via the operation mechanism 104 in the operation levers 101, 101, and the operation lever 1
The movement restrictions of 01 and 101 are released and the mode is switched.

The other ends of the operation levers 101, 101 are rotatably attached to the device frame 106 by a rotation shaft 108, and the operation lever 10
When 1,101 is rotated, the rotating shaft 108 is also rotated, and the rotor of the potentiometer 113 is rotated through the fan-shaped gear 112 attached to the rotating shaft 108, thereby rotating the potentiometer 113. It is designed to change the voltage.

D. Problems to be Solved by the Invention By the way, in the above-mentioned conventional operation lever device, since the torque adjusting means 102 is provided in each of the pair of operation levers 101, 101, the number of parts increases and the structure becomes complicated. Also, the pressing force adjusting screw 110 is attached to the device frame 106.
Since it is oriented at a right angle to the control lever device, it is difficult to adjust the torque in a state where the operation lever device is assembled, and the torque adjustment means 102 must adjust the torque for each operation lever 101. There was a problem that it had to be.

The present invention has been made to solve the above conventional problems.

E. Means for solving the problem A pair of operation levers that generate a pair of electric signals that change according to each movement, and that independently control the operation of different controlled devices based on the pair of electric signals, A torque adjusting means for adjusting an operation force necessary for moving these operation levers is provided, wherein the torque adjusting means applies a friction generating member and the friction generating member to the pair of operation levers at a predetermined pressure. In the operation lever device composed of a pressing force adjusting mechanism for pressing, the friction generating member is fixed at one end, and the free end side of the other end is moved up and down so that the upper surface is the lower end of the pair of operation levers. Is configured to generate friction by coming into contact with a drum for torque generation provided in the above, and the pressing force adjusting mechanism is provided with an elevating plate supporting the free end side of the friction generating member, and the lifting plate. It is screwed to a nut portion provided on the descending plate, and is configured with a bolt rod that raises and lowers the free end side of the elevating plate and the friction generating member by its rotation, and is provided at one end of the bolt rod, A bolt operation part for turning the bolt rod is arranged toward the knob part side of the operation lever.

F. Action Since the common (common) torque adjusting means is provided for the pair of operating levers, the torque of the pair of operating levers can be adjusted simultaneously by operating one torque adjusting means.

Further, since the torque can be adjusted from the operation lever side, it is possible to relatively easily adjust the torque from the operation lever side even with the operation lever device assembled.

G. Example G _1. Schematic configuration of the operating lever device and description of its use example The operating lever device 1 of the present invention changes an electric (control) signal according to its movement, and controls the two controlled devices. While controlling each operation, with a predetermined movement position as a boundary,
A pair of operating levers 2 and 3 for controlling the first mode of the device in one moving direction and controlling a second mode of the device in the other moving direction, and these operating levers 2, 3. Operating force for moving 3; that is, torque adjusting means 4 for adjusting torque, and the operating lever
At a predetermined movement position of 2, 3, a movement regulating means 5 for regulating the movement of the operation levers 2, 3 from at least one to the other, and an operation for mutually changing the movement regulating means 5 between a regulation state and a regulation release state. A mechanism 6 and an operator 7 for operating the operation mechanism 6 are provided.

The operation lever device 1 is used by being incorporated in a control circuit as shown in FIG. 1, for example. When the voltage of the potentiometer 8 is changed by operating the pair of operation levers 2 and 3, the voltage of the voltage is changed. The change is read by the microcomputer 9, and an electric signal for controlling the reproduction speed of the pair of VTRs 10 and 11 as controlled equipment is generated according to the voltage, and the pair of VTR 1
It is designed to supply the capstan motor 12 of 0 and 11.

Then, for example, the control levers 2 and 3 generate a control signal for still reproduction at the position (for example, IV) of the slide pin of the movement restricting means to be described later, and from there, forward (direction of arrow a)
When the operation levers 2 and 3 are moved to, the potentiometer voltage will change from 1V to 5V, and it will change from still playback to 1x speed, 2x speed ... nx speed continuously, and overcoming the position of the slide pin. When the operating levers 2 and 3 move backward, the potentiometer voltage changes from 1V to 0V, and potentiometer is used for variable reverse reproduction such as still reproduction from -1x speed, -2x speed ... -nx speed. A control signal is generated corresponding to the voltage.

G ₂ Structure of operating lever The operating levers 2 and 3 have a so-called double lever structure in which they are stacked so that they can be displaced relative to each other.

The pair of operating levers 2 and 3 are screwed to the lower end side of a lever main body 13 formed in a hollow rectangular shape so that a lead wire, which will be described later, can be passed through as shown in FIGS.
A circular arc-shaped (fan-shaped) gear 15 is attached at 14 ... 14, and a circular friction generating drum 16 is fixed to one side surface of the gear 15 with the centers of the arcs aligned. A pivot shaft 18 is rotatably attached to a bearing hole 17 formed in the center of the gear 15 and the drum 16, and both ends of the pivot shaft 18 are
The operating levers 2 and 3 are mounted between the pair of left and right lever support frames 21 and 22 via the bearing 19 and the bearing support member 20, respectively, so that the operation levers 2 and 3 are located between the lever support frames 21 and 22 with the pivot shaft 18 as the center. It is attached so as to rotate.

Further, the upper ends of the lever bodies 13 of the operation levers 2 and 3 project upward from the surface of the panel 23, and knobs (grip parts) 24 are attached to the respective tips. These knob portions 24 are formed in a hollow square shape having a predetermined thickness so that they can be easily gripped, and when the pair of operation levers 2 and 3 are aligned, the inner surfaces thereof have a predetermined gap δ.
And a step 25 is formed on the outer surface of each other. And the step of one of the knobs 24
25 is provided with a push button 26 for coupling the knob portion, and the step portion 25 of the other knob portion 24 is provided with a push button 27 for releasing the coupling, and the knob portions of the operating levers 2 and 3 are provided. Push buttons 26 for connecting the knobs in a state where the inner surfaces of 24, 24 are opposed to each other (the inner surfaces of the 24, 24 are aligned with each other).
When is pressed, the knob portions 24, 24 are integrally connected to each other, and the operation levers 2, 3 can be operated simultaneously (together), and when the push button 27 for releasing the connection is pressed, the two are connected. It is released and the operating levers 2 and 3 can be operated separately.

The operation levers 2 and 3 have one side in one direction (counterclockwise in FIG. 3).
2 is rotated until it comes into contact with the first stopper 28 that is provided over the upper end side of one side portion of 2, and the other side portion moves in the other direction (clockwise direction in FIG. 3). It is configured to rotate until it comes into contact with the second stopper 29 that is provided over the upper end side.

Further, a potentiometer 8 is attached to each of the pair of lever support frames 21 and 22, and the rotor side of these potentiometers 8 is meshed with the fan-shaped gear 15 via a rotor gear 30 to operate. When the levers 2 and 3 are in contact with the first stopper 28, the potentiating voltage is 5V, and when the operating levers 2 and 3 are rotating and are in contact with the second stopper 29, the potentiating voltage is It is set to 0V.

Then, when the operation levers 2 and 3 come to the position of the potentiation voltage 4V, the movement restriction means described later in the section G ₄ restricts the movement of the operation levers 2 and 3.

G ₃ Structure of torque adjusting means The torque adjusting means keeps the operating lever stationary at a predetermined position by static friction, and the dynamic friction generated when the operating lever is rotated is necessary for operating the operating lever. It adjusts a large operating force, that is, torque.

This torque adjusting means 4 is a pair of friction generating members 31, 3 which generate friction by contacting a torque generating drum 16 mounted on the lower end side of the lever body 13 of the operating levers 2, 3, respectively.
1 and a pressing force adjusting mechanism 32 for pressing the friction generating members 31, 31 against the peripheral surface of the drum 16 with a predetermined pressure.

The friction generating member 31 is formed by laminating a leaf spring 33 and a low friction material 34 on the upper surface of the leaf spring 33, and pushes the low friction material 34 to the lower end side of the peripheral surface of the drum 16. As can be attached, one end of the leaf spring 34 is rotatably supported by a pivot shaft 35 extending between the lever supporting frames 21, 22. Then, the other end side (free end side) of the leaf spring 33 is moved up and down (rotated) around the pivot shaft 35 as a fulcrum so that the low friction material 34 is pressed against the peripheral surface of the drum 16 at the lower end side. It has become. The pressing force adjusting mechanism 32 elevates and lowers the free end side of the leaf spring 33, and the pressing force adjusting mechanism 32 includes an elevating plate 36 supporting the free end side of the pair of leaf springs 33, 33. , A nut portion 37 for screw screwing provided vertically in the central portion of the lifting plate 36, a bolt rod 38 screwed to the nut portion 37, and attached to the upper end side of the bolt rod 38. A bolt operating portion 39 for turning the bolt rod is provided. The operating portion 39 faces the notch hole 40 of the panel 23 and can be operated from the upper surface side of the panel 23. When the bolt rod 38 is rotated in one direction by using the bolt operating portion 39, the elevating plate 36 rises, and the leaf spring 33 to the low friction material 34 are strongly pressed against the peripheral surface of the drum 16 and the space between them is increased. Increase friction and rotate bolt rod 38 in the other direction to raise / lower plate
The reference numeral 36 descends to reduce friction and simultaneously adjust the torque of the pair of operation levers 2 and 3.

41 and 42 are bolt support frames that rotatably support the upper and lower end portions of the bolt rod 38, and 43 is the one that prevents the lifting plate 36 from rotating when the bolt rod 38 is rotated. In addition, it is a pair of guide protrusions for guiding the lifting of the lifting plate 36.

G ₄ .Structure of movement restricting means The movement restricting means 5 restricts movement of the operation levers 2 and 3 when the operation levers 2 and 3 rotate from the position of 5V to 1V as described above. The lever support frames 21 and 22 are provided respectively.

When the operating levers 2 and 3 rotate from the position of 5V to 1V, the movement restricting means 5 comes into contact with one side of the operating levers 2 and 3 to prevent further rotation.
44, a cylindrical pin guide 45 that slidably fits and supports the slide pin 44 on the lever support frame in a state of penetrating the frame, and the pin guide 45 fixed to the lever support frame. Tsuba-shaped guide fixing member 46
And a pin elastic member housed in the pin guide 44 and projecting to a position (regulating position) where one end 44a of the slide pin 44 interferes (abuts) one side of the lever (regulating position). It consists of a coil spring 47, and when the slide pin 44 is slid by a predetermined amount against the spring force of the coil spring 47 by the operation mechanism described in the following section G ₅ , the pin is slid.
One end 44a of 44 is returned to a position where it does not interfere with one side of the lever (regulation release position).

One end 44a of the slide pin 44 is formed in a conical shape so as to make point contact with one side of the lever.
This is to reduce friction by point contact so that the slide pin 44 can be easily slid by the operation mechanism 6 even when the one end portion 44a of the slide pin 44 and one side portion of the lever are in contact with each other. Is.

G ₅ Structure of operating mechanism The operating mechanism 6 is for pulling back the slide pin 44 to a position where it does not interfere with the lever against the spring force of the coil spring 47 for ejecting the pin, that is, to the restriction release position.

The operation mechanism 6 is provided below the slide pin 44 in a state of being substantially orthogonal to the length direction of the pin 44, and is a lever support frame.
Plunger 4 mounted on the outside of 21,22 respectively
8 and a pair of motion direction conversion members 49, 49 for converting the movement of the plunger 48 in the vertical direction (direction along the frame surface) into the movement of the slide pin 44 in the horizontal direction (direction substantially orthogonal to the frame surface). It is configured.

The pair of motion direction conversion members 49, 49 are formed in an L shape by a horizontal arm portion 50 and a vertical arm portion 51, and the vertical arm portion
The lower end side of 51 is arranged so as to sandwich the upper end portion of the plunger 48, and the upper end side is arranged so as to sandwich the slide pin 44, and the distal ends of the horizontal arm portions 50 of the pair of movement direction conversion members 49, 49 are axial. It is pivotally supported by a pivotal support portion 53 provided on the lever support frame by 52, and a turning force is applied by a torsion coil spring 54. 55 is a C ring for retaining. Further, in the central portion of the movement direction converting members 49, 49, that is, in the continuous portion of the horizontal arm portion 50 and the vertical arm portion 51, a long hole 56 for fitting a pin that is long in the horizontal direction is formed.
Is formed, and the end of the connecting pin 57 attached to the tip of the plunger 48 is inserted into the long hole 56, and a C-ring 58 for preventing slippage is attached to the tip of the connecting pin 57. The central portion of 49 is connected to the plungers 48, 48, and the tip of the vertical arm portion 51 is a roller rotatably attached to both ends of a roller support shaft 59 attached to the slide pin 44.
It is fitted in the groove 61 on the peripheral surface of 60. Then, when an electric current is supplied to the plunger 48, the slide pin 44 is pulled back to the restriction release position against the spring force of the coil spring 47 for pin ejection at the tip of the vertical arm portion 51 of the movement direction conversion members 49, 49. It has become.

In the embodiment shown in the drawings, the plunger 48 and the movement direction conversion member 49 are used to push the slide pin 44 back to the regulation release position. In some cases, slide pin 44 may be pushed back directly with plunger 48.

G ₆ .Construction of operator The operator 7 controls ON / OFF of the plunger 48 of the operation mechanism 6 through the microcomputer 9.

The operating element 7 is mounted in the knob portion 24, and
A micro switch 63 connected to the microcomputer 9 by a lead wire 62 passing through the inside of the micro switch 13;
A push button 64 that pushes 63 is provided, and the push button 64 is pushed from the outer surface of the knob portion 24 to turn on / off the micro switch 63.

When the micro switch 63 is turned on, the microcomputer 9
Current to the plunger 48 through the plunger 48
Is operated to push the slide pin 44 back to the regulation release position.

At this time, even if the operator presses the push button 64 or the micro switch 63 and then immediately releases the knob part 24 to turn off the micro switch 63, the microcomputer 9 supplies the current to the plunger 48. Instead of stopping unconditionally, the potentiometer voltage at that time is detected, and when the potentiometer voltage V _R is 1 V or higher, the current supply is stopped, and when V _R ≤ 1 V, the current is continuously supplied. Then, when V _R exceeds 1V, the current supply is stopped. As a result, the tip portion 44 of the slide pin 44
Unnecessary contact between a and the lever body (13) is prevented, and abnormal noise (scratching noise) and friction of the tip portion (44a) of the slide pin (44) or the lever body (13) are prevented.

Note that the micro switch 63
It may be configured to press.

G ₇ : Operation of the embodiment Since the operation lever device of the embodiment has the above-described configuration, if the push lever 26 for connecting the knob portion is pushed to connect the operation levers 2 and 3, these operation levers 2 and 3 are connected. Are connected together and can be operated simultaneously. Further, if the push button 27 for releasing the coupling is pushed, the coupling of the operating levers 2 and 3 is released, and these operating levers 2 and 3 can be operated separately.

Then, even when the operation levers 2 and 3 are integrally connected or the connection between the operation levers 2 and 3 is released, if the push button 64 is lightly pressed with the fingertip holding the knob portion 24 at the time of operating the lever, the plunger 48 is released. Upon operation, the slide pin 44 is automatically pushed back to the restriction release position, and in particular, the push-back operation of the slide pin 44 can be easily performed under the state where the operation levers 2 and 3 are integrally connected.

Further, the torque adjusting means 5 allows the operation levers 2 and 3 to be so-called hard or soft according to the preference of the operator.

H. Effect of the Invention As described above, according to the present invention, the torque adjusting means is provided in common to the pair of operation levers and arranged so that the torque can be adjusted from the operation lever side. With the means, it is possible to easily and easily adjust the torque of the pair of operation levers simultaneously from the operation lever side.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a VTR device incorporating the operating lever device of the present invention, FIG. 2 is a plan view of the operating lever device in use, FIG. 3 is a side view of the operating lever device, and FIG. FIG. 7 is a front view, FIG. 5 is a bottom view, FIG. 6 is a time chart showing an example of plunger control, FIG. 7 is a side view of a conventional operating lever device, and FIG. 8 is a partial sectional view. 1 ... Operating lever device, 2, 3 ... Operating lever, 4 ... Torque adjusting means, 5 ... Movement restricting means, 6 ... Operating mechanism,
7 ... Operator.

Claims (1)

[Scope of utility model registration request] 1. A pair of operating levers for generating a pair of electric signals that change according to each movement and independently controlling the operation of different controlled devices based on the pair of electric signals, and a pair of these operating levers. A single torque adjusting means for simultaneously adjusting an operation force required for movement, wherein the torque adjusting means applies a friction generating member and the friction generating member to the pair of operation levers at a predetermined pressure. In the operation lever device configured with a pressing force adjusting mechanism for pressing, one end of the friction generating member is fixed, and the upper end of the friction generating member is moved up and down to lower the lower end of the pair of operation levers. Is configured to generate friction by contacting a drum for torque generation provided in the, and the pressing force adjusting mechanism, the lifting plate supporting the free end side of the friction generating member, It has a bolt rod that is screwed into a nut portion provided on the lifting plate and that raises and lowers the free end side of the lifting plate and the friction generating member by its rotation, and is provided at one end of the bolt rod. The operation lever device is characterized in that the operation portion for turning the bolt rod is arranged toward the knob portion side of the operation lever.