JPH0416330Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is applicable to control devices installed on construction machinery, robots, ships, transportation machines, etc., remote control of machines that work at heights, underwater, etc., and machine tools. This invention relates to a multi-directional control switch with a neutrality detection mechanism used for controlling etc.

[Conventional technology]

Conventionally, in multi-directional control switches used for controlling machine tools, etc., for example, Figs.
As shown in the figure, the end of the operating rod B supported by the housing A is inserted through the approximate middle part of the rod in the length direction, so that the two rotating members C supported by the housing A are orthogonal to each other. The rotating member C is rotatably mounted in conjunction with the operating rod B, and a rotating piece D is provided that rotates integrally with the rotating shaft of the rotating member C. When the lever B is moved to the left and right (see Fig. 15), the rotating member C is rotated by the operating lever B, and
When the rotating piece D rotates and comes into contact with one side of the switch E, it is detected that the operating rod B has been operated, and in order to detect the neutral state of the operating rod B, at least Four switches were required.

[Problem that the invention attempts to solve]

In such a multi-directional control switch, two switches E and E are required for one rotating member C, that is, at least four switches are required in the X and Y directions on the two-dimensional plane. Therefore, there is a problem that the number of parts increases.

Further, machining accuracy is required when positioning the rotating piece D and the switches E, E.

[Means for solving problems]

In view of the above-mentioned problems, the present invention includes a casing attached to an operation panel main body, etc., a lengthwise intermediate portion of the rod having a substantially spherical shape, an operating rod supported by the casing, and two upper end portions. is rotatably supported by the housing, at least one of its upper ends has protrusions projecting outward on both sides at different distances from the center of rotation, and its lower end has protrusions that protrude outward at different distances from the center of rotation. It has a slit hole through which the lower end of the rod can be inserted, and has two substantially U-shaped rotating members disposed perpendicularly to each other, and at least a horizontal piece pressed by the projecting piece of the rotating member and an operating part. , a substantially inverted L-shaped tilting member pivotally supported by the housing on the side of the protruding piece of the rotating member and biased in a direction in which the horizontal piece presses the protruding piece; The multi-directional control switch with a neutral detection mechanism is attached thereto and includes a neutral detection switch for the operating rod in conjunction with the operating portion of the tilting member.

[Effect]

The multi-directional control switch with a neutral detection mechanism according to the present invention has the above-described configuration, and when the operating rod is operated, the lower end of the operating rod slides through the slit hole of the rotating member, and at least one side This rotation causes the projecting piece to press against the horizontal piece of the tilting member, causing the tilting member to rotate in one direction regardless of the direction in which the rotary member rotates. The actuating portion of the member actuates the switch.

The switch can generate a signal when it detects a neutral condition, or it can generate a signal when it leaves a neutral condition.

[Example] The details of the present invention will be explained based on the illustrated example.

1 to 6 are perspective views for explaining an embodiment of a multi-directional control switch with a neutral detection mechanism according to the present invention.

In the figure, reference numeral 1 denotes a housing to be attached to the operation panel main body, etc., and is approximately rectangular parallelepiped made of metal, synthetic resin, etc., and the material is not particularly limited.

Reference numeral 2 designates an operating rod having a longitudinally intermediate portion of the rod formed into a substantially spherical shape and supported by the housing 1;
By operating the outwardly protruding part of the
It can be freely rotated 360°.

Reference numerals 3 and 4 indicate approximately U-shaped rotating members that are pivotally supported by the housing 1. The rotating members 3 and 4 are arranged perpendicularly to each other, and the operating rod 2 is attached to the lower end of the rotating members 3 and 4. It has slit holes 5 and 6 through which the lower end can be inserted.

In addition, at least one of the two upper ends of the rotating members 3 and 4 has protrusions projecting outward on both sides at different distances from the center of rotation, and the illustrated one has protrusions that protrude outward. The movable member 3 has a protruding piece 7 at one upper end, and the rotating member 4 has a protruding piece 8 at one upper end.

The lengths of the projecting pieces 7 and 8 differ from side to side around the axis on which the rotating members 3 and 4 are supported by the housing 1, respectively. 3 has a long pressing piece 9 on the left side of a shaft supported by the housing 1, and a short pressing piece 10 on the right side of the shaft.

Similarly, the projecting piece 8 has a long pressing piece 11 on the left side of the shaft on which the rotating member 4 is supported by the housing 1, and a short pressing piece 12 on the right side of the shaft.

Reference numeral 13 denotes a substantially L-shaped tilting member, and the tilting member 13 consists of a horizontal piece 14 and a vertical piece 15, and the vertical piece 15 has an actuating part 16 projecting outward.
and a locking part 18 for locking the spring 17 on the side.
It has a through hole 19 for being pivotally supported by the housing 1 at the intersection of the horizontal piece 14 and the vertical piece 15.

This tilting member 13 utilizes the through hole 19 to
It is pivotally supported by the housing 1, and the rotating member 3 is attached to the housing 1.
In other words, as shown in the figure, the pressing short piece 10 of the projecting piece 7 is supported by the housing 1 on the outside to the right of the point where it contacts the horizontal piece 14.

A tilting member 20 similar to the tilting member 13 is attached to the rotating member 4 side, that is, it consists of a horizontal piece 21 and a vertical piece 22, and the vertical piece 22 locks an actuating part 23 and a spring 24. It has a locking part 25 for holding the housing 1, and a through hole 26 for pivotally supporting the housing 1 near the intersection of the horizontal piece 21 and the vertical piece 22.

Although not shown here, angle detection means is provided on at least one of the shafts whose two upper ends of the rotating members 3 and 4 are supported by the housing 1, and this is made of, for example, a variable resistor. Various types of digital signals can be used, such as those that convert the detected angle into a digital signal and output the digital signal.

One end of the spring 17 is attached to a locking portion 18 of the tilting member 13.
The other end is locked in a proper position of the housing 1,
The horizontal piece 14 of the tilting member 13 is connected to the projecting piece 7 of the rotating member 3.
It is biased in the direction of pressing.

Similarly, one end of the spring 24 is attached to the tilting member 2
0, and the other end is locked in a proper position on the housing 1, urging the horizontal piece 21 of the tilting member 20 in the direction of pressing the protruding piece 8 of the rotating member 4. be.

Reference numeral 27 denotes a switch attached to the side surface of the housing 1, and when the rotating member 3 is kept in a neutral state, the switch 27 operates on the actuating portion 16 provided upright on the vertical piece 15 of the tilting member 3. Therefore, it is attached to a position where it is pressed.

A similar switch 28 is attached to the side surface of the housing 1 on the side of the tilting member 20, that is, the rotating member 4
When the housing 1 is in a neutral state, the operating part 23 of the vertical piece 22 presses the switch 28.
It is attached to.

The switches 27 and 28 use so-called sensitive switches as shown in FIG.
and a terminal 32, and each time the button 30 is pressed or released by the operation of the lever 31, the signal is inverted.

The switches 27 and 28 are not limited to such sensitive switches, and various types of switches may be used.

Here, the rotating members 3 and 4 are arranged in mutually orthogonal directions, and based on this, the tilting members 13 and 20
are arranged, so we will consider only one and explain its operation.

8 and 9 are simplified explanatory diagrams showing the operations of the protrusion 8 of the rotating member 4, the tilting member 20, and the switch 28. FIG.

When the operating rod 2 is not operated and is in a neutral state, the rotating member 4 is also in a neutral state and the protruding piece 8 is in a horizontal state.

That is, as shown in FIG. 6, the tilting member 20 is
The rotating member 4 is biased by the spring 24 and is pressed clockwise about the shaft pivoted on the housing 1.
It is stable when the projecting piece 8 is horizontal.

At this time, since the actuating part 23 provided on the vertical piece 22 of the tilting member 20 is placed in a position to press the lever 31 of the switch 28,
The push button 30 of No. 8 is in a pressed state.

The operating rod 2 is operated, the rotating member 4 is rotated,
When the projecting piece 8 is in the state shown in FIG. 8, the pressing long piece 11 presses the horizontal piece 21 of the tilting member 2, and the tilting member 20 rotates counterclockwise.

Accordingly, the actuating portion 23 provided on the vertical piece 22 moves away from the lever 31 of the switch 28 and releases the push button 30.

As a result, the signal of switch 28 is inverted.

Furthermore, when the operating rod 2 is operated in the opposite direction to the above-mentioned case, the rotating member 4 similarly rotates in the opposite direction to the above-mentioned case, and from now on, the protruding piece 8 is moved to the pressing short piece 12 as shown in FIG. presses the horizontal piece 21 of the tilting member 20.

Here, the tilting member 20 is the pressing short piece 1 of the projecting piece 8.
2 is pivoted to the housing 1 at the outer side of the part where the horizontal piece 2 contacts the horizontal piece 21. That is, the horizontal piece 21 pressed by the pressing short piece 12 resists the spring 24 and rotates counterclockwise as shown in the figure. Rotate in the direction.

From this, the operating portion 23 provided on the vertical piece 22
moves away from the lever 31 of the switch 28 and releases the push button 30.

As shown in FIGS. 8 and 9, the operating rod 2
The tilting member 20 rotates in the same direction in the direction in which the pivoting member 4 is pivoted, that is, in both directions around the neutral state, and the push button 30 of the switch 28 rotates in both directions.
is released in either case.

That is, the push button 30 of the switch 28 is pushed in only when the operating rod 2 is neutral with respect to the rotating direction of the rotating member 4, and is open otherwise.

The same applies to the rotating member 3, that is, the push button of the switch 27 is pressed only when the operating rod 2 is neutral with respect to the rotating direction of the rotating member 3; It is open if .

The rotating members 3 and 4 are arranged in directions orthogonal to each other, and only when the operating rod 2 is neutral with respect to the rotating directions of both rotating members 3 and 4, the switch 2
The push buttons 7 and switch 28 are pressed at the same time.

Here, only when the push buttons of switches 27 and 28 are pressed, that is, when the operating rod 2 is in the neutral state, a signal is generated to detect that the operating rod 2 is in the neutral state. It is also possible,
In addition, when the operating rod 2 is in the neutral position, the switch 27,
It is also possible to set the switch 28 not to generate a signal, but to generate a signal indicating that at least one of the switches 27 and 28 is no longer in the neutral condition when the operating rod 2 leaves the neutral condition. .

The multi-directional control switch with a neutrality detection mechanism according to the present invention can detect that the operating rod 2 is in the neutral state, and can
In the Y direction, only one switch, here switch 27 and switch 28, is required, so the number of parts can be reduced.

The tilting members 13 and 20 are shown in FIGS.
It is pivotally supported by the housing 1 using a shaft member 33 as shown in the figure.

That is, one side surface of the base body 34 has a screw shaft projecting thereon as a fixed shaft 35, and the other side surface has a fixed shaft 35.
A loosely fitted shaft 36 having a shaft center eccentric from the shaft center of No. 5.
protrudingly provided, located at the center of the fixed shaft 35,
A through hole 37 is formed in the length direction.

The shaft member 33 thus constructed is inserted into a through hole (not shown) provided at an appropriate position on the side surface of the housing 1 with a fixed shaft 35 inserted from inside the housing 1 and fixed using a nut 38.

A loosely fitting shaft 36 is inserted into the through hole 19 of the tilting member 13, and the tilting member 13 is rotatably attached to the housing 1 using a bolt 39 and a nut 40.

The switch 27 operates reliably, and the operating lever 2
is in the neutral state, the horizontal piece 1 of the tilting member 13
4 is pressed against the protrusion 8 of the rotating member 3, the positioning of the tilting member 13 requires precision, but it is necessary to loosen the nut 38 and rotate the shaft member 3. For example, since the position of the loose fitting shaft 36 moves, that is, the position of the shaft around which the tilting member 13 rotates, the position of the tilting member 13 can be easily adjusted.

The same applies to the tilting member 20, and by supporting the tilting member 20 at an appropriate position on the housing 1 using the shaft member 33 described above, the position can be adjusted.

By using such a shaft member 33, the tilting member 1
3 and 20 are pivotally supported on the housing 1, it becomes possible to easily adjust the positions of the tilting members 13 and 20, which require precision.

Further, the tilting members 13 and 20 utilize bearing members 41 as shown in FIGS. 12 and 13,
It may be pivoted to the housing 1.

That is, a screw shaft is provided protruding from one side surface of the base body 42 to form a fixed shaft 43, and a through hole 44 having a center offset from the axis of the fixed shaft 43 is bored.

The bearing member 41 thus constructed is inserted into a through hole (not shown) provided at an appropriate position on the side surface of the base body 1 from inside the base body 1 with a fixed shaft 43 and fixed using a nut 45 .

Reference numeral 46 denotes a bolt with a reduced diameter at the tip and a spiral shaft.The bolt 46 is inserted into the through hole 44 of the bearing member 41, and the tip of the bolt 46 is inserted into the through hole 19 of the tilting member 13. Then, the bolt 46 and the tilting member 13 are tightened with the nut 47.

As shown in the figure, the fixed shaft 43 of the bearing member 41 has a part of the screw thread removed, and if this is used to rotate the bearing member 41, the center will be located in the eccentric through hole 44. Since the bolt 46 and the tilting member 13 move, and the position of the axis around which the tilting member 13 rotates moves, the position of the tilting member 13 can be easily adjusted.

The same applies to the tilting member 20, and by supporting the tilting member 20 at an appropriate position on the housing 1 using the above-mentioned bearing member 41, the position can be adjusted.

By using such a shaft member 41, the tilting member 1
3 and 20 are pivotally supported on the housing 1, it becomes possible to easily adjust the positions of the tilting members 13 and 20, which require precision.

[Effect of idea]

The multi-directional control switch with neutrality detection mechanism according to the present invention is constructed as described above and can detect that the control switch is in the neutral state, so it can be installed on construction machinery, robots, ships, transportation machines, etc. If the control is in a neutral state, it will generate a signal to that effect, and if it is not in a neutral state, it will It is only necessary to output a control signal.

In addition, in order to detect that the control switch is neutral, it is possible to detect with one switch in each of the X and Y directions, which makes it possible to reduce the number of parts and reduce costs. It is something that can be done.

[Brief explanation of the drawing]

1 to 6 are explanatory diagrams of a multi-directional control switch with a neutral detection mechanism according to the present invention, and FIG. 7 is an illustration of a sensitive switch used in an embodiment of the multi-directional control switch with a neutral detection mechanism according to the present invention. FIGS. 8 to 9 are explanatory diagrams of the operation of the multidirectional control switch with neutral detection mechanism according to the present invention, and FIGS. 10 to 11
The figure is an explanatory diagram of the shaft member used in the multi-directional control switch with neutral detection mechanism according to the present invention, and FIGS. 12 and 13 are explanatory diagrams of the bearing member used in the multi-directional control switch with neutral detection mechanism according to the present invention. Figure, 14th
- FIG. 15 is an explanatory diagram of a conventional example. 1... Housing, 2... Operating rod, 3... Rotating member,
4...Rotating member, 5...Slit hole, 6...Slit hole, 7...Protrusion piece, 8...Protrusion piece, 9...Press long piece, 10...Press short piece, 11...Press long piece , 12
...pressing short piece, 13...tilting member, 14...horizontal piece, 15...vertical piece, 16...operating section, 17...
Spring, 18... Locking part, 19... Through hole, 20...
...Tilt member, 21...Horizontal piece, 22...Vertical piece,
23... Actuation part, 24... Spring, 25... Locking part, 26... Through hole, 27... Switch, 28...
...Switch, 29...Switch body, 30...Push button, 31...Lever, 32...Terminal, 33
...shaft member, 34 ... base body, 35 ... fixed shaft, 3
6... Loose fitting shaft, 37... Through hole, 38... Nut, 39... Bolt, 40... Nut, 41...
Bearing member, 42...base body, 43...fixed shaft, 44
...Through hole, 45...Nut, 46...Bolt,
47...Natsuto.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A casing to be attached to an operation panel main body, etc.; an operating rod having a longitudinally intermediate portion of the rod formed in a substantially spherical shape and supported by the casing; and two upper end portions. is rotatably supported by the housing, at least one of the upper ends has protrusions protruding outward on both sides at different distances from the center of rotation, and the lower end has the operating rod. two substantially U-shaped rotating members having a slit hole through which the lower end can be inserted, and having two substantially U-shaped rotating members disposed perpendicularly to each other, and at least a horizontal piece pressed by the projecting piece of the rotating member and an operating portion; a substantially inverted L-shaped tilting member pivotally supported by the housing on the side of the protruding piece of the rotating member and biased in a direction in which the horizontal piece presses against the protruding piece; and attached to the side surface of the housing. A multi-directional control switch with a neutral detection mechanism, further comprising: a neutral detection switch for an operating rod in conjunction with an operating portion of the tilting member. 2. A multi-directional control switch with a neutrality detection mechanism according to claim 1, which utilizes a sensitive switch as a neutrality detection switch. 3. A fixed shaft with a threaded surface is protruded from one side of the base, and a loosely fitted shaft having an axis eccentric from the axial center of the fixed shaft is protruded from the other side of the base. A multi-directional control switch with a neutral detection mechanism according to claim 1 or 2, characterized in that the tilting member is pivotally supported using a shaft member. 4 A threaded fixed shaft is protruded from one side of the base, and the tilting member is pivoted using a bearing member provided with a through hole whose center is eccentric from the axis of the fixed shaft. A multi-directional control switch with a neutrality detection mechanism according to claim 1 or 2 of the utility model registration claim.