JPH02257321A - Joy stick controller - Google Patents

Abstract

PURPOSE:To simplify the structure and reduce the size and to decrease dust- proof and water-proof places and to attain complete sealing by providing a case at the cut part of a knob, and putting an electric converter in the case and allowing the knob to slant freely in one direction. CONSTITUTION:The case 22 is arranged at the part of the cut part 21 of the knob 20 and variable resistors 26 and 27 as electric converters are put in the case 22. One side of the shaft 28 of the variable resistors 26 and 27 is fixed to the knob 20 and the other side (center part) is fixed rotatably to the bearing 29 of the case 22. Further, the knob 20 is allowed to slant freely in one direction. Consequently, the structure is simplified and the number of components and assembly man-hours are reduced greatly to obtain completely dust-proof, water-proof, and vibration-proof structure capable of prolonging the life.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a joystick controller, and particularly to a joystick controller designed to be suitable for use in extremely harsh environments, such as for construction machinery.

[Summary of the invention]

The present invention includes a knob having a notch of a predetermined shape, a case provided in the notch of the knob, and an electrical converter provided inside the case. The shaft of the device is fixed to the knob on one side, rotatably fixed on the other side to the bearing of the case, and the knob can be tilted in one direction, simplifying the structure and reducing the number of parts and assembly man-hours. It has been designed to significantly reduce the amount of water used, and is completely dust-proof, waterproof, and vibration-proof, and has a long lifespan.

[Conventional technology]

Various joystick controllers of this kind have been proposed in the past, and FIG. 5 is one example.

The joystick controller shown in Figure 5 has a knob that can be tilted in all directions. In the figure, (1) is the operating shaft that can be tilted around the lower support point, and (2) is the operating shaft (1). (3) is a compression coil spring (spring), (4) is a cylindrical spring receiver, (5) is a bearing, and (6) is a base for the spring receiver.

The spring (3) is wound around the operating shaft (1) and is biased by upper and lower spring receivers (4). The spring receiver (4) is biased by the spring (3), and the lower spring receiver comes into sliding contact with the base (6). By tilting the operating shaft (1), the spring receiver (4)
The collar of the spring receiver slides on the stand (6), compresses the spring (3), and when the operating shaft (1) is released, it returns to its original state due to the elastic force of the spring (3). The bearing (5) is press-fitted into the lower spring receiver (4) and smoothes the axial movement between the operating shaft (1) and the lower spring receiver (4).

The spring receiver base (6) is fitted between the upper bottom surface of the case (7) and the lower spring receiver (4), and is made of a wear-resistant material.

(8) is a spherical body, which is rotatably held on a support shaft (9) fixed to the inner wall of the case (7), and an operation shaft (1) passing through the center is fixed with a detent (10). There is. (1
1) is a variable resistor, which consists of a rotating shirt (12), a slider mechanism, a resistor, a terminal (all not shown), etc., and has a resistance value or voltage that matches the rotation angle of the shirt (12). The structure is such that the change is taken out from the terminal, and the case (7)
Fixed to the side.

(13) is a rocking plate which has a U-shape, has a groove through which the operating shaft (1) passes, and whose both ends are fixed to the rotary shirt (12). When the operating shaft (1) is tilted, the rocking plate (13) swings back and forth, rotating the variable resistor (11) (12). (14) is a flexible rubber cover with pleats, and the upper part is fixed to the upper spring receiver (4) and the lower part is fixed to the panel (15), and the operating shaft part and the panel part are fixed. This prevents dust, water, etc. from entering the interior. (16) is the mounting panel, (
17) is a lid.

[Problem to be solved by the invention]

By the way, in the case of the conventional joystick controller configured as shown in Fig. 5, the dustproof rubber cover (14) is placed above the mounting panel (16), and the case (7) and variable resistor (11) are placed above the mounting panel (16). A large space is required both above and below the panel (16), and the case (7) must also be installed by protruding upward from the bottom of the mounting panel (16), making it difficult to install. was there.

In addition, the areas to be dustproof and waterproof are divided into the area around the upper operating shaft (1), the area around the case (7), and the area around the variable resistor (11), each of which has drawbacks that must be addressed. Ta.

Furthermore, when used in a harsh environment, the rubber cover also deteriorated quickly and had the disadvantage of cracking and tearing. Further, when the operating shaft is made to be tiltable in one direction, it is necessary to provide a dedicated guide plate, which has the disadvantage of complicating the structure.

The present invention has been made in view of these points, and it is an object of the present invention to provide a joystick controller that can eliminate the above-mentioned drawbacks.

[Means to solve the problem]

The joystick controller according to the present invention includes a knob (20) having a notch (21) of a predetermined shape, a case (22) provided at the notch (21) of the knob (20), and the case. (22), and the electrical converter (26, 27) (28) is fixed to the knob (20) on the - side; The other side is rotatably fixed to the bearing (29) of the case (22), and the knob (20)
It is constructed so that it can be tilted in one direction.

[Effect]

Attach the case (2) to the notch (21) of the knob (20).
2) Place. This case (22) has a built-in variable resistor (<26.27) as an electrical converter.

And the shirt of the variable resistor (26, 27)) (28
) is fixed on the negative side to the knob (20), and the other side (center part) is rotatably fixed on the bearing (29) of the case (22). Further, the knob (20) can be tilted in one direction. This simplifies the structure, significantly reduces the number of parts and assembly man-hours, and makes it completely dustproof, waterproof, vibration resistant, and has a long service life.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on FIGS. 1 to 4.

Fig. 1 is a cross-sectional view of this embodiment as seen from the front, Fig. 2 is a sectional view taken along line 1-I in Fig. 1, and Fig. 3 is a side view of this embodiment. The side view, FIG. 5, is a partially detailed view showing in detail the contact point and slide lever portion in FIG. 1.

In the figure, (20) is a knob, which has a notch (21) of a predetermined shape, and a case (22) for a variable resistor as an electrical converter is located in the notch (21). provided. In addition, there is a case (2) in the notch (21).
A spring return mechanism is provided behind 2). This spring return mechanism consists of a torsion coil spring (spring) (23), a cylindrical spring receiver (24) rotatably attached to a shaft (28), and a metal pin (25). The extensions at both ends of the spring (23) are fixed by sandwiching a pin (25) fixed to the case (22) and a pin (25) fixed to the knob (20). When the knob (20) is tilted back and forth, a pin (25) fixed to the knob (20) rotates against the spring force, and when the knob (20) is released, it returns to its original position. This pin (25) is attached to the knob (20) and the case (22) by press fitting or screwing. This pin (
25) may use split pins instead of parallel pins.

A variable resistor consisting of a slide insulator (26) and an element board (27) is built inside the case (22), and (28) is its shaft and (29) is its bearing. The shaft (28) has one end fixed to the knob (20) with a set screw (30), and the other end is integrally formed with a slide insulating section (26), and is rotatably fixed to a bearing (29). ing. Note that a pin or the like may be used as the set screw (30). This bearing (29) is made of wear-resistant metal or resin, and is embedded and integrally formed in the center of the case (22).

One end of the knob (20) is provided with a pin (25) for driving the spring return mechanism as described above, and a variable resistor shirt (28) is inserted into the top of the pin (25) and fixed with a screw (30). The shaft (28) is rotated by tilting the knob (20) back and forth.

In addition, the case (22) has a stopper protrusion (30) on the top for restricting the rotation of the knob (20), a protrusion (32) with a mounting hole (31) on the bottom, and a variable resistor on the side of the center. It has a recess (33) into which a container can fit.

(34) is a lid to prevent dust and water from entering inside the case (22).It has a ring groove (35) for an elastic member on its outer circumferential surface, and can be fitted or screwed into the case. (2
2) is fixed. (36) is an elastic member for sealing the shaft portion and prevents dust, water, etc. from entering the inside from the shaft portion. This elastic member (36) may be an O-ring or a gasket made of rubber or plastic. (37
) is an elastic member for sealing the lid, and is similar to the elastic member (36) described above.
) and are made of similar materials.

(38) is a spacer that restricts the movement of the elastic member (36) in the axial direction. (39) is a scissor washer for restricting the axial movement of the shaft.

The element substrate (27) has a resistor (40), a current collector (41) and an electrode (4) integrally formed as shown in FIG.
2). (43) is a terminal attached to the electrode portions at both ends of the resistor (40) and the electrode portion of the current collector (41);
) is a lead wire connected to the terminal (43) and drawn out to the outside of the case (22), and (45) is a packing for vibration isolation.

In addition, the slide insulating part (26) slides on the resistor (40) and the current collector (41) as shown in FIG. 4
6) has a spring slide lever (47) attached by welding or soldering. Further, (48) is a stopper notch provided in the case (22).

Therefore, in FIG. 3, when the knob (20) is rotated left and right in the drawing, the protrusion (30) comes into contact with the notch (48), and the rotation of the knob (20) is restricted.

In addition, although the above-mentioned embodiment has been explained using a variable resistor as an example of an electrical converter built into the case (22), it is not limited to this, and the same can be applied to other converters such as a rotary switch or an encoder. Applicable to

Further, in the above embodiment, a spring return mechanism is attached to the back of the case (22), but it goes without saying that the present invention also includes a case in which this mechanism is removed.

〔Effect of the invention〕

As described above, according to the present invention, a case is provided in the notch portion of the knob, and an electrical converter is built in the case, so that the knob can be tilted in one direction.
The structure is simple, making it possible to downsize, and there are fewer dust-proof and waterproof parts, making it possible to achieve complete sealing. Also,
Since the knob section and the electrical converter section are integrally attached to the surface of the panel, assembly and disassembly are easy, and the number of parts is reduced, making it possible to reduce costs. Furthermore, when the knob can be tilted in one direction, there is no need to insert a dedicated guide plate as in the past.
The structure becomes simpler and the cost becomes cheaper.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line I-1 in FIG. 1, FIG. 97J3 is a side view of an embodiment of the invention, and FIG. 5 is a partial detailed view of the slide insulator according to the present invention, and FIG. 5 is a cross-sectional view of the conventional device. (20) is a knob, (21) is a notch, (22) is a case, (26) is a slide insulator, (27) is an element board, (28) is a shaft, and (29> is a bearing).

Claims (1)

[Scope of Claims] A knob having a notch of a predetermined shape, a case provided in the notch of the knob, and an electrical converter provided inside the case, A joystick controller, wherein one side of the shaft of the digital converter is fixed to the knob, and the other side is rotatably fixed to a bearing of the case, and the knob is tiltable in one direction.