JPH0743708U - Joystick controller - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a joystick controller that has a structure that is highly resistant to dust and water, and that can be used in locations where the environment is poor. A joystick controller according to the present invention includes a knob 20 having a notch 21 having a predetermined shape, a case 22 provided so as to fit in the notch 21 of the knob 20, and a case 22 inside the case 22. A provided electric converter (for example, a variable resistor) and a shaft 28 that pivotally supports the knob 20 in one direction with respect to the case 22 and rotates integrally with the knob 20 to operate the electric converter. And the case 2 so as to cover the storage part of the electrical converter.
The lid 34 is attached to the cover 2, and a seal member (elastic member such as an O-ring) 37 is provided on the peripheral surface of the lid 34 and seals a gap between the lid 34 and the case 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joystick controller, particularly a joystick controller designed for construction machinery and the like, which is designed to be used even in a very bad environment.

[0002]

[Prior art]

 Various types of joystick controllers have been conventionally proposed, and FIG. 4 shows an example thereof. The joystick controller shown in FIG. 4 has a knob that can be tilted in all directions. In the figure, reference numeral 1 is an operation shaft that is tiltable about a lower support point, and 2 is a knob fixed to the operation shaft 1, Reference numeral 3 is a compression coil spring (spring), 4 is a cylindrical spring receiver, 5 is a bearing, and 6 is a spring pedestal.

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 slidably contacts the lower spring receiver 6. When the operating shaft 1 is tilted, the brim portion of the spring receiver 4 slides on the spring pedestal 6 to compress the spring 3, and when the operating shaft 1 is released, the elastic force of the spring 3 restores it. The bearing 5 is press-fitted into the lower spring bearing 4 to smooth the axial movement between the operating shaft 1 and the lower spring bearing 4. The spring pedestal 6 is fitted between the upper bottom surface of the case 7 and the lower spring pedestal 4 and is made of a wear resistant material.

Reference numeral 8 denotes a spherical body, which is rotatably held by a support shaft 9 fixed to the inner wall portion of the case 7, and the operation shaft 1 penetrating the center portion is fixed by a detent 10. Reference numeral 11 denotes a variable resistor, which is composed of a rotating shaft 12, a slider mechanism, a resistor, a terminal (all not shown), etc. And is fixed to the side surface of the case 7.

Reference numeral 13 is a rocking plate having a U-shape and having a groove through which the operating shaft 1 penetrates, and both ends of which are fixed to the rotary shaft 12. When the operation shaft 1 is tilted, the rocking plate 13 swings back and forth to rotate the shaft 12 of the variable resistor 11. Reference numeral 14 is a flexible and pleated rubber cover, the upper part of which is fixed to the upper spring receiver 4 and the lower part of which is fixed to the panel 15. Reference numeral 16 is a mounting panel, and 17 is a lid.

[0006]

[Problems to be solved by the device]

 The conventional joystick controller as shown in FIG. 4 is not suitable for use in a bad environment. That is, when this conventional joystick controller is used in a bad environment where dust and water droplets are likely to be applied, dust and water droplets easily enter the inside of the case 7 and the variable resistor 11 and become unusable. Although the upper portion of the operation shaft 1 is covered with the rubber cover 14, if the rubber cover 14 deteriorates and is broken or cracked, dust or water droplets easily enter from there.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a joystick controller that is structurally excellent in dustproof and waterproof effects and can be used in an adverse environment.

[0008]

[Means for Solving the Problems]

 The joystick controller according to the present invention is provided with a knob 20 having a notch 21 having a predetermined shape, a case 22 provided so as to fit in the notch 21 of the knob 20, and a case 22 provided inside the case 22. An electric converter (for example, a variable resistor), a shaft 28 for pivotally supporting the knob 20 in one direction with respect to the case 22, and a shaft 28 for operating the electric converter by rotating integrally with the knob 20. A lid 34 attached to the case 22 so as to cover the housing of the electrical converter, and a seal member (O-ring or the like) provided on the peripheral surface of the lid 34 to seal the gap between the lid 34 and the case 22. Elastic member) 37 of FIG.

[0009]

[Action]

 Since the joystick controller according to the present invention has a structure in which the case 22 of the electric converter is placed in the cutout portion 21 of the knob 20, the case 22 of the case 22 and the knob 20 are connected to each other by dust or water droplets. It is difficult for water to enter and dust and water droplets from entering from the outer surface of the case 22 are surely prevented by the lid 34 and the seal member 37. Therefore, excellent dustproofing and waterproofing effects can be obtained, and moreover, there is a place to be dustproofing and waterproofing. The structure is simplified because the number is small.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.

In the figure, reference numeral 20 denotes a knob, which has a cutout portion 21 having a predetermined shape, and a case 22 for a variable resistor as an electrical converter is provided so as to fit in the cutout portion 21. To be The knob 20 and the case 22 are connected to each other via a shaft 28 as an operation shaft of the variable resistor, that is, the knob 20 can be tilted (rotated) in one direction by the shaft 28 with respect to the case 22. It is pivotally supported.

A spring return mechanism is provided inside the notch 21 behind the case 22. The spring return mechanism comprises a torsion coil spring (spring) 23, a cylindrical spring receiver 24 rotatably attached to a shaft 28, and a metal pin 25. The extension portions of 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 left and right, the pin 25 fixed to the knob 20 rotates against the spring force, and when the knob 20 is released, the pin 25 returns to its original position. The pin 25 is attached to the knob 20 and the case 22 by press fitting or screwing. As the pin 25, a split pin may be used instead of the parallel pin.

A variable resistor composed of a slide insulating portion 26 and an element substrate 27 is built in the case 22, 28 is a shaft thereof, and 29 is a bearing thereof. The shaft 28 has one end fixed to the knob 20 with a set screw 30, and the slide insulating portion 26 integrally formed at the other end, which is rotatably fixed to the bearing 29. A pin or the like may be used as the set screw 30. The bearing 29 is made of wear-resistant metal or resin and is embedded in the center of the case 22 to be integrally formed.

A pin 25 for driving the spring return mechanism is provided at one end of the knob 20, and a shaft 28 of the variable resistor is inserted into the upper portion of the pin 25 and fixed by a screw 30, so that the knob 20 can be moved to the left and right. The shaft 28 is adapted to rotate by being tilted.

In addition, the case 22 has a stopper protrusion 49 for limiting the turning range of the knob 20, an protrusion 32 having a mounting hole portion 31 for the lower portion, and a concave portion 33 for accommodating the variable resistor in the central portion. Have.

Reference numeral 34 denotes a lid for preventing dust, water droplets, and the like from entering the inside of the case 22, and has a ring groove 35 for an elastic member on the outer peripheral surface thereof, and the case 2 can be fitted by screwing or screwing. Fixed to 2. An elastic member 36 for sealing the shaft portion prevents dust and water droplets from entering the inside from the shaft portion. As the elastic member 36, an O-ring or packing made of rubber or plastic may be used.

Reference numeral 37 denotes an elastic member for sealing the lid, which has the same function as the elastic member 36 and is made of the same material. A spacer 38 limits the axial movement of the elastic member 36. 39 is a scissors washer for limiting the axial movement of the shaft.

The element substrate 27 has a resistor 40, a current collector 41 and an electrode 42 which are integrally formed as shown in FIG. 43 is a terminal attached to the electrode part of both ends of the resistor 40 and the electrode part of the current collector 41, 44 is a lead wire connected to the terminal 43 and pulled out to the outside of the case 22, and 45 is a vibration-proof packing. Is.

Further, as shown in FIG. 1B, the slide insulating portion 26 slides on the resistor 40 and the current collector 41 to take out a contact 46 from which a change in resistance or voltage is taken out, and the contact 46 is welded or soldered to one end. It has a slide lever 47 having a spring property attached by. Reference numeral 48 denotes a stopper notch provided on the case 22. Therefore, in FIG. 2, when the knob 20 is rotated to the left and right, the protrusion 49 comes into contact with the cutout portion 48, and the rotation range of the knob 20 is limited.

The joystick controller of the present embodiment configured as described above has a structure in which the case 22 of the electrical converter is arranged so as to fit in the cutout portion 21 of the knob 20. It has excellent dustproof and waterproof effects.

That is, the structure in which the case 22 is provided so as to fit in the notch portion 21 of the knob 20 is such that when viewed from the case 22 side, the periphery of the case 22 (in this embodiment, the upper and the rear of the case 22) is controlled by the knob. The structure is such that it is covered with 20. With this structure, dust and water droplets do not easily enter the connection part between the case 22 and the knob 20, and especially when using in a bad environment, the case 22 and the knob 20 are connected. It is possible to effectively prevent dust and water droplets from entering the inside of the case 22 from a portion.

Further, the intrusion of dust and water droplets from the outer surface side of the case 22 is reliably prevented by the lid 34 and the elastic member 37 that seals the gap between the lid 34 and the case 22.

As described above, the joystick controller according to the present embodiment is excellent in dustproofing and waterproofing effect, and has a simple structure because there are few places to take measures for dustproofing and waterproofing. It is compact and can be manufactured at low cost.

In the above-described embodiment, the case where the variable resistor is used as the electric converter incorporated in the case 22 has been described as an example, but the present invention is not limited to this, and other converters such as a rotary switch and an encoder may be used. The same applies.

Further, although the spring return mechanism is attached to the back of the case 22 in the above-described embodiment, it goes without saying that the present invention also includes the spring return mechanism removed.

[0026]

[Effect of device]

 As is clear from the above description, the joystick controller of the present invention has a structure in which the case of the electrical converter is placed in the cutout portion of the knob, so dust and water droplets may be added to the connecting portion of the case and the knob. Is difficult to enter, and the entry of dust and water droplets from the outer surface of the case is reliably prevented by the lid and sealing member, so excellent dust and waterproof effects can be obtained, and there are few places to protect against dust and water. As a result, the structure is simplified, and it has excellent effects that have not been available in the past.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention, in which A is a vertical side view of a joystick controller, and B is a view showing details of a part (slide insulation part) of the variable resistor.

FIG. 2 is a front view of the joystick controller of the embodiment.

FIG. 3 is a partial cross-sectional front view of the joystick controller of the embodiment.

FIG. 4 is a vertical sectional view of a conventional joystick controller.

[Explanation of symbols]

 20 Knob 21 Notch 22 Case 26 Slide Insulation 27 Element Substrate 28 Shaft 29 Bearing 34 Lid 37 Elastic Member (Seal Member) 48 Notch 49 Protrusion

Claims (2)

[Scope of utility model registration request] 1. A knob having a notch of a predetermined shape, a case provided so as to fit in the notch of the knob, an electric converter provided inside the case, and the case On the other hand, the knob is pivotally supported so that it can be tilted in one direction,
Also, a shaft that rotates integrally with the knob to operate the electrical converter, a lid attached to the case so as to cover the storage portion of the electrical converter, and a lid provided on the peripheral surface of the lid. A joystick controller including a seal member for sealing a gap between the case and the case. 2. The joystick controller according to claim 1, wherein means for limiting a turning range of the knob is provided between the knob and the case.