KR890002616Y1 - X-y direction input device - Google Patents

Abstract

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Description

X-Y direction input device

Figure is for explaining the X-Y direction input device according to an embodiment of the present invention,

1 is a perspective view of a graphic display device including an X-Y direction input device.

2 is a side view of the input device in the X-Y direction.

3 is a top view of the lower case.

4 is a cross-sectional view of the front of the lower case.

5 is a bottom view of the lower case.

6 is a top view of the annular support.

7 is a front cross-sectional view of the annular support.

8 is a side view of the annular support.

9 is a top view of the upper case.

10 is a front cross-sectional view of the upper case.

11 is a cross-sectional view taken along the line A-A of FIG.

12 is a bottom view of the upper case.

13 is a top view of the switch lever.

14 is a front cross-sectional view of the switch lever.

15 is a bottom view of the switch lever.

16 is a cross-sectional view of the entire X-Y direction input device.

17 is a partial cross-sectional view of the input device showing the attachment state of the switch lever.

18 is an explanatory diagram showing a principle of detecting the amount of rotation of the input device.

* Explanation of symbols for main parts of the drawings

8: casing 9: lower case

10: upper case 28: ring-shaped support

33: protective cover 53: rotating object

59: first driven roller 61: frictional force applying roller

64: first rotation amount detecting means 65: second rotation amount detecting means

The present invention relates to an X-Y direction input device, for example, to an X-Y direction input device suitable for a graphic input device or the like.

A graphic display device is basically composed of a display, a screen, a display, a controller, a data channel, and various input devices.

One of these devices, when the operator lays down a lever supported by a gimbal mechanism in an arbitrary direction, the joystick detects an angle lying down with the direction and generates a voltage or digital signal for each component in the X-axis direction and the Y-axis direction. (JOYSTICK)

However, the X-Y direction input device has a problem in that the rotation range of the lever is limited and also the stability of the X-Y direction input signal.

In order to overcome this drawback, in recent years, the X-Y direction input device called "mouse" developed by the present invention was developed. This XY direction input device is a rotating spherical body (for example, abbreviated as a sphere) made of steel balls or the like, which is freely rotated, and a first driven member which contacts with the sphere and rotates by the rotational force of the sphere. A second driven roller which is rotated by the rotational force of the sphere in contact with the roller and the sphere, and at the same time the axial direction is substantially orthogonal to the axial direction of the first driven roller, and the amount of rotation of the first and second driven rollers, respectively. A casing accommodating the first and second rotational amount detecting means, each of which includes a variable resistor and an encoder to detect individually, these spheres, and the first and second driven rollers and the first second rotational amount detecting means. It is basically configured as.

An opening is provided in the lower surface of the casing, and a part of the sphere protrudes downward through the opening, and the first and second driven rollers are respectively driven by rolling the sphere with the casing in an arbitrary direction on the predetermined base. Rotate in a predetermined direction.

A system in which the rotation direction and the rotation amount of these driven rollers are picked up by the first and second rotation amount detection means as voltages or digital signals of respective components in the X-axis direction and the Y-axis direction, respectively, and the signals are input to the display apparatus. It is.

The present invention targets this kind of X-Y direction input device.

However, in the above-described conventional example, a rotating ball that rotates on the base, a pair of driven rollers which rotate in contact with the base, and a frictional force applying roller for rotating these driven rollers to the rotating ball are individually supported on the supporting part which is placed in the lower case. In addition, the to-be-rotated body is supported by protrusions extending downward from the inner wall of the upper case, and since each of these members is assembled in a partially exposed state in the case, the casing is dropped or a strong impact force from outside When applied, there are various problems such as a misalignment of the position on the rotating sphere, thereby causing poor contact of the driven roller, and damaging both the rotating sphere and the casing.

The present invention is directed to an improved structure for eliminating the problems of the prior art, wherein an annular support covering the driven roller and the frictional force applying roller and simultaneously housed therein is integrally formed and attached to the casing to attach the casing to the center of the annular support. It is characterized by providing a protective cover of the same shape for accommodating the object to be rotated, and embodiments of the present invention will be described in detail below with reference to the drawings.

1 is an overall perspective view of a graphic display device including the X-Y direction input device according to the embodiment.

On the table 1, a display device 2 having a screen, a controller and a data channel, an input device 3 having an operation key, and an embodiment of the present invention The XY direction input device 4 is placed.

In addition, the XY direction input device 4 is operated on the dedicated sheet 5 laid on the table 1 and, by this operation, for example, the cursor 7 displayed on the screen 6 of the display device 2. ) Can be moved to any position.

2 is a side view of the X-Y direction input device 4.

The casing 2 is composed of, for example, a lower case 9 and an upper case 10 formed of an ABS resin or the like, and dust is inserted into the casing 8 at the junction of the lower case 9 and the upper case 10. In order to prevent invasion of water or the like, the entire circumference of the junction between the lower case 9 and the upper case 10 is to be bonded together.

The upper case 10 is designed in such a size that the operator can operate with one hand, and the insertion hole 12 is formed along a length direction of the upper case 10 at a predetermined position in front of the upper wall portion 11. have. The operation end 14 of the rectangular switch lever 13 is inserted into this insertion hole 12 from the inner side of the upper case 10, and slightly protrudes from the upper wall part 11.

As will be described later, a push switch is disposed correspondingly below the switch lever 13, and these are, in addition to the switch of the XY direction input device 4 itself, for example, directly above the cursor 7 in the display device 2. Alternatively, a portion of the display pattern immediately below may be deleted, moved to another display position, or used for various signal processing such as other conversion and control. The display 2 and the X-Y direction input device 4 are connected by a cord 15 and an insertion plug 16.

3 to 5 show that the main wall 18 is continuously placed over the entire circumference of the bottom portion 17 of the lower case 9, and each of the two front angular portions and the rear center portion is small. Holes 19, 20, and 21 are formed, respectively. These three small holes 19, 20, and 21 are positioned to form an isosceles triangle when they connect their center points.

In addition, a large diameter opening part 22 is provided in the center of the bottom part 17, and the ring-shaped end part 22a is formed in the lower edge of the opening part 22, and a square groove part 33b is formed in a part of lower edge part. ), And the screw holes 23 are formed in the openings 22 and the four surroundings.

In addition, the screw insertion holes 24, 25, and 26 are provided in the front center part and the back angled part of the bottom part 17, and this screw insertion hole 24, the said opening part 22, and the main wall ( 18, the reinforcing rib 27 is integrally formed in the required part.

6 to 8 show a ring-shaped support body 28 supporting the to-be-rotated sphere described later. FIG. 6 is a plan view, FIG. 7 is a front sectional view, and FIG. 8 is a side view.

The annular support is an integrally molded product of synthetic resin, and has a through portion 29 having a diameter larger than a spherical sphere in the center, and has three cavities 30, 31, and 32 around the through portion 29. Equipped. The cavities 30, 31 and 32 set the positions for supporting the first and second driven rollers and the friction applying rollers, which will be described later, respectively, and form an opening toward the through part 29 side.

In addition, the ring-shaped support 28 has a dome-shaped protective cover 33 on the upper portion of the through portion 29 integrally. This is to prevent the above vibration. T-shaped protrusions provided on two upper surfaces of the protective cover 33 are pedestals 34 for supporting the lower surface of the switch lever 13, which is an advantage of the ring-shaped support 28 as can be seen in FIG. .

In FIG. 6, screw holes 35 are formed at both sides of the cavity part 30 and at the ends of the cavity parts 31 and 32, respectively, and the four screw holes 35 and the lower case 9 are formed. The hook-shaped support 28 is fixed to the lower case 9 by connecting the screw hole 23 of the screw) with a screw.

9 is a top view of the upper case, FIG. 10 is a front sectional view of the upper case, FIG. 11 is a sectional view taken along the line A-A in FIG. 9 of the upper case, and FIG. 12 is a bottom view of the upper case.

The upper case 10 has an upper wall portion 11 curved to be accommodated in a user's hand (see FIG. 2), and an operation end 14 of two switch levers 13 is provided in front of the upper wall portion 11. The window 36 is drilled to expose it. On the inner surface of the upper wall portion 11, the screw holes 37, 38, 39 are formed at positions corresponding to the screw insertion holes 24, 25, 26 of the lower case 9, respectively. At the positions corresponding to the holes 19, 20, and 21 of the lower case 9, bosses 40, 41, and 42 having holes in the center are protruded.

In addition, the annular protruding wall 43 is formed on the inner surface of the upper wall portion 11 corresponding to the opening 22 of the lower case 9, and the thin protective cover 33 is pressed to reinforce it. At two locations of the annular protruding wall 43, a T-shaped pressing portion 44 having the same shape as the pedestal 34 is integrally formed at a position corresponding to the pedestal 34 of the annular support 28. The end of the switch lever 13 fixed by the three welding pins 45 in the vicinity of the pressing portion 44 is sandwiched by the pressing portion 44 and the pedestal 34.

Reinforcing ribs 47 are integrally formed between the main wall 46 of the upper case 10 and the bosses 40, 41, 42, and the screw holes 37, 38, 39, and the like. It is formed.

FIG. 13 is a top view of the switch lever 13, FIG. 14 is a front sectional view, and FIG. 15 is a bottom view.

The switch lever 13 is an integrally molded article made of synthetic resin, and has a cross section bent in a substantially <-shape. And one end has a cross-section c-shaped operation end 14, the lower wall of the operation end 14 is formed with an operating portion (14a) extending in the inclined direction, the other end is a narrow portion 48 seems to be a little narrow ) And three small holes 49 drilled inside the gripping portion 48, and a thin portion 50 is formed just inside the small hole 49 to increase the operability of the switch lever 13. . In addition, a flange portion 14 is formed at the front end of the operation end 14 to be attached to the window 36 of the upper case 10, to serve as a stop for the return operation of the switch lever 13, and the switch lever 13 The reinforcing rib 51 is formed in the bent part of ().

16 is an assembled sectional view of the input device 4.

That is, the lower case 9 and the upper case 10 connect the screw insertion holes 24, 25, 26 and the screw holes 37, 38, and 39 with screws 52. It is integrated.

At the center of the casing 8 composed of the upper case 10 and the lower case 9, a rotating sphere 53 made of steel balls is disposed, and the rotating sphere 53 is an opening of the lower case 9. The lid 54 is retained in the casing 8 by the lid 54 and the annular support 28 fixed to the end 22a of the lid 22 and fixed by screws (not shown). It is rotated in the cylindrical part 29 of the annular support 28 so that it may rotate in the XY direction by exposing downward from the opening 54a of 54 and rolling on the base 5.

In addition, the three holes 19, 20, and 21 of the lower case 9 contain small balls 55, and the small balls 55 are bosses of the upper case 10. The upward direction movement is regulated by 40, 41, and 42, and the lower surface is preserved in a slightly protruding form than the bottom of the lower case 9.

As described above, one end of the two switch levers 13 is fixed to the upper wall of the upper case 10 by the welding pin 45. In this fixing, three welding pins 45 are inserted into the small holes 49 of the switch lever 13, and then the end of the pin 45 is melted and caulked and the switch lever 13 is operated. The caulking fixing portion 14 is made rotatable by its elasticity. As shown in FIG. 17, the clamping portion 38 at the tip of the switch lever 13, which is in the vicinity of the caulking fixing portion, has a pedestal 34 and an upper case 10 installed on the upper surface of the annular support 28. As shown in FIG. It is sandwiched between the pressing portion 44 provided on the lower wall of the, and even if the fixing strength of the caulking fixing portion is deteriorated, the operation of the switch lever 19 can be performed with this caulking fixing portion as a point.

The switch device of the XY direction input device operated by the switch lever 13 is a push switch 56, mounted on the substrate 57, and the boss 58 of the lower case 9 as shown in FIG. It is fixed on the phase. The operation part 14a of the switch lever 13 is opposed to the upper side of the push switch 56, and when the operation end 14 is pushed in, the operation part 14a contacts the push switch 56 to perform a switch operation. have.

In addition, the dome-shaped protective cover 33 formed on the ring-shaped support 28 is in a position slightly isolated from the upper surface of the rotating body 53 in a normal use state, and is slightly lower than the rolling of the rotating body 53. Although it does not cause a problem, when the XY direction input device 4 is driven or dropped from the base 5, the upward movement of the rotated sphere 53 is restricted, and the surface and the upper case of the rotated sphere 53 ( 10) Protect the lamp. Since the object to be rotated 53 must accurately detect the amount of rotation, it is required to have a high-precision surface with a large weight, such as steel balls, but if it comes into contact with the inner wall of the case, the surface is damaged and the amount of rotation detection becomes unstable.

Therefore, the upper part of the rotating body 53 is covered with a dome-shaped protective cover 33 having a curvature that is closest to the curvature of the rotating body 53.

Next, the principle of rotation amount detection in the X-Y direction input device of the present embodiment will be described with reference to FIG.

The rotating member 53 is press-contacted to the first driven roller 59 and the second driven roller 60 by the friction force applying roller 61. The axial direction of the 1st driven roller 59 and the 2nd driven roller 60 is orthogonal, and it contacts a surface perpendicular to the surface of the to-be-spinned body 53 mutually.

The frictional force applying roller 61 is disposed on a straight line connecting the point Q where the axes of the first and second driven rollers 59, 60 intersect with the center 0 of the to-be-rotated sphere 53, The object to be rotated 53 is pressed against the first and second driven rollers 59 and 60 with an equal force.

In addition, the frictional force applying roller 61 is rotatably supported by the cage 62, and the pressing force is obtained by adding the cage 62 to the spring 63. FIG.

First and second rotation amount detecting means 64 and 65 are provided on the axes of the first and second driven rollers 59 and 60. The first and second rotation amount detecting means 64 and 65 detect the rotation amount of the driven roller by an encoder, a rotary type variable resistor, and the like, and the rotation amount of the rotating target body 53 in the X direction and the Y direction. By detecting by dividing into each component of, the rotation state of the to-be-rotated sphere 53 is known.

That is, when the rotating body 53 rotates in an arbitrary direction, the X direction component of the rotating amount is converted into the rotating amount of the first driven roller 59 rotated by the rotating body 53, and the rotating amount is detected by the first detection. Detected by the means 14, the Y-direction component of one rotation amount is converted into the rotation amount of the second driven roller 60, and the rotation amount is detected by the second detection means 65.

The rotation state of the to-be-spinned object 53 is known above.

The present invention is as described above, and the rotating sphere is freely disposed, the first driven roller which is in contact with the rotating sphere and rotates by the rotating force of the rotating sphere, and rotates by the rotational force of the rotating sphere and at the same time in the axial direction. A second driven roller which is substantially orthogonal to the axial direction of the first driven roller, first rotational amount detecting means for detecting a rotational amount of the first driven roller, and a second driven roller A second rotation amount detecting means for detecting the whole quantity, and a friction force applying roller for elastically adding the rotating member to the first driven roller and the second driven roller shaft to impart a frictional force between the driven object and the driven roller; A casing is provided for receiving the rotating member and the rotational amount detecting means of the first and second driven rollers. An opening is formed in the lower portion of the casing, and the part of the rotating member is turned downward from the opening. In the XY direction input device which rotates the to-be-spinned body on a base, a ring-shaped support for supporting the first and second driven rollers, the first and second rotational amount detecting means and the frictional force applying roller is provided in the casing. At the same time as the excretion, a dome-shaped protective cover which extends to the upper surface of the rotating sphere is formed on the annular support.

Therefore, if the XY direction input device is moved on the base, the movement state can be easily detected. Even if the XY direction input device is dropped or inverted, the dome-shaped protective cover is provided on the ring-shaped support, so that the rotation of the rotating object In addition, the upper case can be prevented from injuring the to-be-revolved sphere itself, and the above-mentioned transmission rollers and frictional rolling rollers are stably housed in the cavity of the ring-shaped support, thereby protecting them from external shocks. Therefore, not only the contact between the driven roller and the rotating member is always stably maintained, but also the reinforcement of the casing itself. In addition, this ring-shaped support body can be integrally molded by the same shape by synthetic resin, etc., and also assembled into the lower case by screws, etc. Has the effect to provide.

Claims (1)

The rotational force of the to-be- spherical body 53 which is in contact with the to-be-rotated sphere 53 and the first driven roller 59 and the to-be-rotated sphere which are rotated by the rotational force of the to-be-rotated sphere 53 are arranged freely. And a rotational speed of the second driven roller 60 and the first driven roller 59, the rotational direction of which is substantially orthogonal to the axial direction of the first driven roller 59. Rotation amount detecting means 64, second rotation amount detecting means 65 for detecting the amount of rotation of the second driven roller 60, the to-be-played object 53 and the first driven roller 59 And a frictional force applying roller 61 and these driven spheres 53 which apply a force elastically to the side of the driven roller 60 and the driven rollers 53 and the driven rollers 59, 60. And a casing 8 for accommodating the first and second driven rollers 59, 60, the first and second rotational amount detecting means 64, 65, and the like. 53) and In the XY direction input device configured to be driven on the case 5, the first and second driven rollers 59 and 60 and the first and second detecting the rotational amounts of these rollers in the casing 8, respectively. Three cavities for supporting and retaining the rotation amount detecting means (64) and (65) of the two, and the frictional force applying roller (61) which imparts a frictional force between the first and second driven rollers and the rotating member ( 30), (31), and (32) are provided with a ring-shaped support body (28) and fixed to the lower case (9), and the ring-shaped support body (28) has a dome connected to the upper surface of the rotating body (53). XY direction input device, characterized in that the protective cover 33 is provided in the shape.