JPH0337064Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an X-Y direction input device, and relates to an X-Y direction input device suitable for, for example, a figure input device of a graphic display device.

A graphic display device basically consists of a display screen, a display controller, a data channel, and various input devices. One of these input devices is that when the operator tilts a lever supported by a gimbal mechanism in a desired direction, the direction and angle of tilt are detected, and the voltage of each component in the X-axis direction and Y-axis direction or There is a "Joystek" (registered trademark) that generates digital signals. However, with this input device, the rotation range of the lever is limited and there are also problems with the stability of the input signal.

In order to overcome this drawback, an input device called a "mouse" has been developed in recent years. This input device consists of a rotated sphere (hereinafter abbreviated as sphere) made of a steel ball, etc., which is arranged to be freely rotatable.
a first driven roller that is in contact with the sphere and rotates by the rotational force of the sphere; and a first driven roller that is in contact with the sphere and rotates by the rotational force of the sphere and whose axial direction is the first driven roller.
a second driven roller that is substantially orthogonal to the axial direction of the driven roller, and a first and second rotation comprising variable resistors, encoders, etc. that individually detect the rotation angles of the first and second driven rollers. It basically consists of an amount detecting means, and a casing that houses these spheres, the first and second driven rollers, the first and second rotation amount detecting means, and the like.

An opening is provided in the lower surface of the casing, and a part of the sphere protrudes downward through the opening, and by holding the casing and rolling the sphere in any direction on a predetermined base, the first and second spheres are rotated. The two driven rollers each rotate in a predetermined direction. A system that extracts the rotation direction and rotation angle of these driven rollers as voltages or digital signals of each component in the X-axis direction and Y-axis direction using first and second rotation amount detection means, respectively, and inputs these signals to a display device. It's summery.

The present invention is directed to this type of input device.

Embodiments of the present invention will be described in detail below with reference to the drawings.

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

On the table 1 are a display device 2 having a screen, a controller, a data channel, etc., an input device 3 having function keys, and an input device 4 according to an embodiment of the present invention.
is placed. Note that the input device 4 is operated on a dedicated sheet 5 placed on the table 1,
By this operation, for example, the cursor 7 displayed on the screen 6 of the display device 2 can be moved to an arbitrary position.

Next, the structure and operating principle of this input device 4 will be explained. FIG. 2 is a side sectional view of the input device 4 with some internal parts omitted, and FIG. 3 is a side sectional view of the input device 4.
FIG.

The casing 8 consists of a lower case 9 and an upper case 10 molded from hard synthetic resin, and as shown in FIGS. 2 and 3, the lower case end 11 of the upper case 10 touches the upper case end 12 of the lower case 9. It is fitted externally to cover it. This is to prevent dust, water, etc. from entering into the casing 8 from the joint between the lower case 9 and the upper case 10.

The upper case 10 is designed to have a size that allows the operator to hold and operate it with one hand, and the upper wall 13 and left and right side walls 14 are designed at appropriate angles to make it easier to hold, as shown in FIGS. 2 and 3. A rectangular insertion hole 17 into which the operating lever 16 of the push switch 15 is inserted is formed. This switch 15 is of a push button type, and in addition to the switch of the input device 4 itself, it also switches the display device 2, for example.
, it is used for deleting a part of the display pattern immediately above the cursor 7, moving it to another display position, and other controls. As shown in FIG. 2, the operating lever 16 slightly projects upward from the upper case 10.

Further, on the inner surface of the upper wall portion 13 of the upper case 10, a cylindrical portion 18 for receiving a spherical body, which will be described later, is integrally protruded.
Approximately in the center of the front wall portion 19 is a button fitting notch 2.
0 is set. Further, the rear wall portion 21 of the upper case 10
A screw insertion portion 23 into which a tapping screw 22 is screwed is integrally provided at the center of the inner surface and inside the corner of the front wall portion 19 in a protruding manner.

On the other hand, a bushing fitting notch 25 corresponding to the bushing fitting notch 20 of the upper case 10 is formed approximately in the center of the front wall 24 of the lower case 9, and a bushing fitting notch 25 corresponding to the bushing fitting notch 20 of the upper case 10 is formed at the center of the inner surface of the rear wall 26 and the front wall 24. Screw insertion portions 27 are integrally provided at both corner portions of the upper case 10 to correspond to the screw insertion portions 23 of the upper case 10 .

Also, from the lower case 9, there are multiple (5 in this example)
2 and 3 are installed on the upper part of the front three pillars 28a.
As shown in the figure, a printed circuit board 29 having a conductive pattern (not shown) is attached with screws 30, and one end of the operating lever 16 is attached to 28c formed at the top of the two central pillars 28b. It is rotatably supported and serves as a lever support.

Further, a circular opening 31 is formed in the center of the inner surface of the lower case 9, and the upper edge of the opening 31 becomes a tapered surface 31a that expands upward.
The upper end portion of a is cylindrical and projects from the inner surface of the lower case 9, and an annular step portion 32 is formed on the outer periphery of this centering projecting portion. The opening 31 is for placing a sphere, which will be described later, and the sphere is held in the opening 31 in a somewhat floating state by the tapered surface 31a. The stepped portion 32 has the same height as a protrusion 33 formed on the inner surface of the lower case 9 around the opening 31, and a mounting plate 34 is placed on the stepped portion 32 and the protrusion 33, and an annular shaped step 3
The mounting plate 34 is positioned with respect to the sphere by fitting the hole 34a bored in the center of the mounting plate 34 into the hole 34a.

A rubber bushing 35 is provided between the bushing fitting notches 20 and 25 of the lower case 9 and the upper case 10.
is fitted to protect the signal line 36. The signal line 36 has one end connected to the printed circuit board 29 and the other end connected to the input end of the display device 2, and has a length that does not hinder the operation of the input device 4 on the sheet 5.

Note that an annular jetty 37 provided on the lower surface of the lower case 9 is for protecting the lower edge of the opening 31, and this jetty 37 and two protrusions 38 protruding further forward are used to protect the lower edge of the opening 31. The entire device 4 is supported at three points to prevent it from wobbling.

4 is a plan view of the operating lever 16, and FIG. 5 is a front sectional view of the operating lever 16. Operation lever 1
Reference numeral 6 indicates an acupressure part 16a projecting upward, and an acupressure part 16
It is a U-shaped member consisting of two rotating arms 16b extending from a, and has a foot 16c on the lower surface of the center of the acupressure part 16a that comes into contact with the upper surface of the switch 15, and a printed circuit board 29 on the lower surface of the tip. A guide rod 16d is formed to be inserted through a guide hole 29a bored in the guide hole 29a.
A return spring 16g is wound around the guide rod 16d, and constantly presses the operating lever 16 upward.
Further, an integrally molded groove 16e is formed around the acupressure part 16a, and this groove 16e is located below the edge of the insertion hole 17 of the upper case 10, so that water droplets and This prevents dust from entering the interior. FIG. 6 shows another example of the operation lever 16, in which the groove 16 is
e is enlarged so that the hanging wall 17a formed at the edge of the fitting hole 17 of the upper case 10 is inserted into the groove 16e, thereby more easily preventing water droplets and dust from entering the inside of the casing 8. It was designed to do so.

Further, a horizontal support shaft 16f is integrally formed at the tip of the rotating arm 16b of the operating lever 16, and this support shaft 16c is connected to two support columns 28 protruding from the lower case 9.
It fits into the groove 28c of b from above. As a result, the operating lever 16 can rotate around the support shaft 16f, and since the distance from the fulcrum to the acupressure part 16a is relatively long, the foot 16c will not press the switch 15 no matter where on the acupressure part 16a you press. , switch 15
It is now possible to turn on and off.

FIG. 7 is a plan view of the mounting plate 34 on which various parts are mounted, and the mounting plate 34 made of a metal plate has a hole 34a in the center that fits into the cylindrical step 32 of the lower case 9. The hole 34a is drilled, and around the hole 34a,
Two insertion holes 34b, 34b for passing the support column 28b of the lower case 9, a female screw portion 34c for fastening to the lower case 9 with a screw 40, and two locks for locking a rotation amount detection means 41 to be described later. A hole 34d, four locking holes 34e for locking the bearing 42, and a locking hole 34 for fixing the holder 44 of the friction force applying means 43.
f is formed.

The rotation amount detection means 41 is composed of a rotary variable resistor as shown in FIGS. 8 and 9, and includes a substrate 46 fixed in an insulating case 45,
A ring-shaped resistance layer 46a is coated on a substrate 46, and is rotatably supported on a rotating shaft 47c, and is composed of a displacer in which a slider receiver 47 and a conductive metal slider 48 are integrated. On the other hand, the tip 4 of the slider 48
8a abut, and the slider receiver 47 rotates around the rotating shaft 47c, thereby causing the tip portion 48a and the resistance layer 4 to contact each other.
The contact position with 6a changes, and the resistance value between both ends changes. Note that terminal leads 49 are fixed to both ends of the resistance layer 46a and the slider 48, and two displacement stoppers are provided near both ends of the resistance layer 46a on the substrate 46 facing the slider 48. 46b is provided protrudingly, and the slider receiver 47
The protrusion 4 faces the displacer stopper 46b.
7a is formed, and both constitute a stopper means. This displacement element stopper 46b and the protrusion 4
7a restricts the rotation range (300 degrees) of the slider receiver 47, and prevents the tip 48a of the slider 48 from coming off the resistance layer 46a.
Further, a large gear 47b is formed on the outer periphery of the slider receiver 47, and this gear 47b is connected to the insulating case 45.
protrudes outward from the sides of the Then, a claw (not shown) formed at the lower part of the insulating case 45 fits into the locking hole 34d of the mounting plate 34, so that
The detection means 41 is fixed to the mounting plate 34.

FIG. 10 is a front view of the bearing 42, and FIG. 11 is a side sectional view of the bearing 42. The upper part of the bearing 42 made of polyacetal has a hole 42a through which the rotating shaft 50 is inserted, and the lower end has a hole 42a through which the rotating shaft 50 is inserted. Two pawls 42b are provided that engage with the locking holes 35e of the plate 34, and the bearing 42 is fixed to the mounting plate 34 by the elasticity of the pawls 42b.

FIG. 12 shows a driven roller 51 of the rotating shaft 50,
The reduction gear 52 is shown fixed and inserted into the bearing 42, and FIG. 13 shows the rotating shaft 50, and FIGS. 14 a and b.
15 is the reduction gear 52, and FIGS. 15a and 15b are the driven rollers 5.
1. FIGS. 16a and 16b show other examples of the driven roller 51. The rotating shaft 50 is made of metal and has a flat part 50a near one end, and the flat part 52b formed in the through hole 52a of the reduction gear 52 made of polyacetal resin fits into this flat part 50a, and both Rotate as one. Further, near the other end of the rotating shaft 50, there is a flat portion 50b with a somewhat larger diameter, and the driven roller 51
A flat portion 51b formed in the through hole 51a engages with this flat portion 50b, and both rotate together. This driven roller 51 has a ring 51B made of soft urethane rubber attached to the outer periphery of a core material 51A made of hard polyurethane resin. is large and does not deform as a whole. 1st
The other driven roller 53 shown in FIG. 6 is integrally molded with urethane rubber, and has a curved surface 5 that gently protrudes from its outer peripheral surface.
3b, the area of contact with the sphere 39, which will be described later, is made smaller to obtain a larger frictional force in the rotating direction of the driven roller 53, and the frictional force in the roller axial direction perpendicular to this is made as small as possible. It is something. Thereby, the two driven rollers 53 that rotate at right angles to each other can be prevented from interfering with the rotation of the other driven rollers.
In FIG. 16, the driven roller 53 is integrally molded from urethane rubber, but the core member may be formed from metal or a hard resin such as polyacetal, and only the outer peripheral portion may be formed from a rubber member.

FIG. 17 is a front view of the frictional force applying means 43,
FIG. 8 is a side sectional view of the frictional force applying means. The frictional force applying means includes a holder 44, a slider 54 that slides within the holder, a frictional force applying roller 55 rotatably supported by the slider 54, and a slider 54.
and a spring 56 interposed between the slider 54 and the holder 44 to press the slider 54 outward.

19a, b, and c show a front view, a side sectional view, and a plan sectional view of the holder 44. The holder 44 has a storage section 44a that is open at the front, and is curved inwardly in front of the opening from both side walls. Two claw portions 44b are formed, and a hole 44c is bored in the rear wall of the storage portion 44a. Further, the mounting plate 34 is attached to the lower end of the holder 44.
An elastic claw 44d and a protrusion 44e that engage with the locking hole 34f are provided.

20a, b, and c are front views of the slider 54;
In the side cross-sectional view and rear view, a housing section 54a for the frictional force applying roller 55 is formed in the center of the slider 54, and a U-shaped U-shaped housing for supporting the frictional force applying roller 55 is formed on both sides of the opening of the housing section 54a. The cutout portion 54b is provided with its open portion facing forward. In addition, a sliding portion 54c is formed at the four corners of the outer peripheral portion, and the storage portion is curved so as to protrude from the wall surface, and the sliding movement is achieved by the contact between the sliding portion 54c and the wall surface of the storage portion 44a of the holder 44. I try to make it run smoothly. Furthermore, a columnar portion 54d is provided on the rear wall of the slider 54 to project, and this columnar portion 54d fits into the hole 44c of the holder 44, thereby stabilizing the operation of the slider.

21a and 21b are a front sectional view and a side view of the frictional force applying roller 55, which is integrally molded from polyacetal resin and has a shaft portion 55a that engages with the notch 54b of the slider 54 and abuts on the sphere 39. It consists of a pressing part 55b.

FIG. 22 shows a coiled spring, one end of which is engaged with a concave spring receiving part 54e formed on the rear wall of the slider 54 and wound around a columnar part 54d, as shown in FIG. The friction force applying roller 55 is engaged with a spring receiving portion on the inner wall of the
is constantly pushed outward.

Note that the frictional force applying means 43 is itself assembled. That is, the shaft portion 55a is supported in the notch 54b of the slider 54, and the columnar portion 54d
When the slider 54 is inserted from the opening side of the holder 44 with the spring 56 wound around it, the claws 44b of the holder 44 open left and right due to their own elasticity.
The slider 54 enters into the storage portion 44a. When the slider 54 enters a certain position, the claw portion 44b
is locked to the front end surface of the slider 54. As a result, the front part of the cutout part 54b is closed by the claw part 44b, and the frictional force applying roller 55 is locked in the holder 44 together with the slider 54, and the spring 56
Therefore, it is always urged outward. Moreover, at this time, the depth of the U-shaped notch 54b is larger than the diameter of the shaft portion 55a of the friction force applying roller 55, and the shaft portion 55a has some clearance back and forth within the notch portion 54b. Therefore, sphere 39
The frictional force imparting roller 55 in contact with the shaft portion 55
a is pressed against the semicircular bottom surface of the notch 54b and rotates smoothly with the rotation of the sphere 39.

Next, the operation of the input device of this embodiment will be explained.

As shown in FIG. 3, there are two sets of the driven roller 51 and the rotary variable resistor serving as the rotation amount detection means 41, which are arranged on the mounting plate 34. It is fitted into the centering protrusion and accurately positioned with the opening 31 of the lower case 9 and the sphere 39 located within this opening 31. Therefore, the driven roller 51 and the friction applying roller 55 on the mounting plate 34 are accurately positioned with respect to the center of the sphere 39. The first driven roller 51 and the second driven roller 51 are arranged so that their axial directions are perpendicular to each other, and both rollers are individually rotated by the rotational force of the sphere 39. The rotational direction and rotational angle of each roller are determined by a rotary variable resistor connected via a reduction means constituted by a rotation shaft 50, a reduction gear 52, and a gear 47b of a slider receiver 47. It is then detected. That is, as shown in FIG. 23, the straight line Q connecting the contact point P between the sphere 39 and the frictional force applying roller 55 and the rotation center O of the sphere 39 passes through the center point of the two driven rollers 51 (θ ₁
= θ ₂ ) A frictional force imparting roller 55 is disposed, and the sphere 39 is evenly pressed against the two driven rollers 51 by the frictional force imparting roller 55. As shown in FIG. 24, the rotation state of the sphere 39 is The rotation directions and rotation angles of the first and second driven rollers 51 are separated into each component in the axial direction and the Y-axis direction, and the rotation directions and angles of the first and second driven rollers 51 are detected as a voltage value using a variable resistor.

By the way, in the display device 2 used in the present invention, the cursor 7 on the screen 6 is moved in the X-axis and Y-axis directions by the rotation of the sphere 39. That is, the amount of movement of the cursor 7 is changed depending on the magnitude of the output of the variable resistor, which is the rotation amount detection means 41, but now the sphere 39 is rotated more than necessary, and the signal from the rotary variable resistor is If it exceeds a certain level, the cursor 7 will move off one end of the screen 6 and appear on the other side. Such movements are unnecessary for cursor operation and make accurate operation difficult. Therefore, in this input device, the eighth
As shown in FIG. 9, a stopper means is formed by two stoppers 46b provided on the substrate 46 of the rotary variable resistor and a protrusion 47a provided on the slider receiver 47 to face the stoppers 46b. By engaging the stopper 46b and the protrusion 47a, the rotation range of the slider receiver 47 is limited to about 300 degrees where the resistance layer 46a exists, thereby preventing the screen 6 from malfunctioning.
Note that this type of stopper means is not limited to the mechanical variable resistor as described above, but may be an electrical one in an electronic circuit such as an encoder.

Moreover, when this stopper means is operated, the sphere 39
In order to prevent the input device from becoming locked, the input device is provided with power relief means. It is preferable that the power relief means is provided in the transmission mechanism from the sphere 39 to the rotation amount detection means 41, and in particular, it is easiest to use a friction force transmission mechanism. For example, the stopper 46 in the stopper means
When the stopping force against the protrusion 47a of b is A, the frictional force B between the sphere 39 and the driven roller 51 is A>
The relationship B should be used. The frictional force B can be appropriately obtained by adjusting the biasing force of the spring 56 that presses the frictional force applying roller 55 and the surface roughness of the sphere 39 and the driven roller 51. The sphere 39 used in the embodiment of the present invention is made of stainless steel and has a high sphericity.
Within 15 [μm], hardness HRC58 or more, surface roughness
It was degreased with trichlene using 12.5S-25S.

However, in the above example, the surface of the driven roller 51 is worn out due to the slipping motion between the driven roller 51 and the spherical body 39, and the rotation direction and rotation angle of the spherical body 39 may not be accurately detected. Therefore, the driven roller 51
The engagement relationship between the rotating shaft 50 and the rotating shaft 50, or the rotating shaft 50
It is also possible to provide power relief means in the engagement relationship between the reduction gear 52 and the reduction gear 52, and in the engagement relationship between the reduction gear 52 and the slider receiver 47. As shown in FIGS. 13 and 14, the rotating shaft 50, the driven roller 51, and the rotating shaft 5
0 and the reduction gear 52, the flat portions 50a and 50b of the rotating shaft 50, the driven roller 51, and the reduction gear 5
This is made up of two flat parts 51b and 52b. Therefore, the flat parts 50a, 50b, 51b, 52
By making the area of b relatively small, the engagement force C between the two can be kept small. That is, the stopping force A of the stopper means, the driven roller 51 and the sphere 3
If the engagement force C is set so that the relationship C<B<A with respect to the friction force B with 9, the surface of the driven roller 51 will not slip unnecessarily, and the engagement force C in other transmission mechanisms will The stop means can be operated.

Further, although the gear 47b of the displacement element in this embodiment is provided integrally with the slider receiver 47, it is made separate from the rotating shaft 47c, and the frictional force between them is used as the engagement force of the above-mentioned power relief means. good. Further, by providing the above-mentioned stopper means, the operating range of the rotation amount detecting means is limited. In particular, in the case of a rotary variable resistor as in this embodiment, the operating angle is about 300 degrees, and the user can move the input device 4 on the seat by an appropriate distance and thereby the sphere 39.
This operating angle is extremely small compared to the rotation angle of . The small rotation angle of the sphere not only narrows the control range of the cursor 7 but also makes delicate positional control of the cursor 7 difficult. Therefore, in this input device, as is clear from FIG. 3, the ratio of the number of teeth between the reduction gear 52 on the driving side and the gear portion 74b on the outer periphery of the slider receiver 47 on the driven side is set to 1:3 to 4. While the slider 48 in the variable resistor has an operating angle of 300 degrees, the driven roller 51 can rotate approximately 900 degrees to 1200 degrees.

Although gears are used as the speed reduction means in the above embodiments, the speed reduction means is not limited to this as long as the speed reduction ratio does not vary, and means such as rubber rollers and belts may also be used.

As explained above, according to the present invention, when the cursor moves to one end on the screen of the display device, the cursor will not appear from the other end even if the rotated sphere is rotated any further. , it is possible to facilitate signal processing by the input device, and the operability of the input device is improved.

[Brief explanation of the drawing]

The figures are for explaining the X-Y direction input device according to all the embodiments of the present invention, FIG. 1 is a perspective view of a graphic display device including the input device, and FIG. 2 is a diagram showing internal parts. 3 is an exploded perspective view of the input device, FIG. 4 is a top view of the operating lever, FIG. 5 is a sectional view of the operating lever taken along the - line, and FIG. 6 is a sectional view of the input device with parts omitted. FIG. 7 is a top view of the mounting plate; FIG. 8 is a side partial sectional view of rotation amount detection means using a rotary variable resistor; FIG. Figure 9 is a front view with part of the rotation amount detection means removed, Figure 10 is a front view of the bearing, and Figure 11 is a front view of the bearing.
The figure is a side sectional view of the bearing, Figure 12 is a front view of the transmission mechanism from the sphere to the rotation amount detection means, Figure 13 is a front view of the shaft in Figure 12, Figure 14 is a reduction gear, and a is the reduction gear. FIG. 15 is a front sectional view of the gear, b is a side view, FIG. 15 is a front sectional view of the driven roller, b is a side view, FIG. 16 is another embodiment of the driven roller, and a is 17 is a front view of the friction force applying means, FIG. 18 is a side sectional view of the friction force applying means, FIG. 19 is a holder, a is a front view of the holder, b 20 shows the slider, a is the front view of the slider, b is the side sectional view, c is the rear view, and FIG. 21 is the friction force applying roller. , a is a front sectional view, b is a side view, FIG. 22 is a side view of the spring, FIG. 23 is an explanatory diagram showing the positional relationship between the sphere and the driven roller, and FIG.
The figure is a principle diagram showing the operation of the rotation amount detection means. 4...Input device, 8...Casing, 15...
Push switch, 16...Switch lever (switch operating body), 16a...Shiatsu part, 16c...
Switch pressing body, 16d... Guide rod, 16e...
Recessed portion, 16f... Rotating base, 17... Opening, 28
b... Lever support part, 31... Opening, 32... Centering protrusion, 34... Supporting member, 39... Rotated sphere, 41... Rotation amount detection means, 43... Frictional force applying means, 44...Holder, 44b...Claw part, 46...Substrate, 46a...Resistance layer, 46b...
...Stopper, 47...Slider receiver, 47a...Protrusion, 47b...Gear of rotation amount detection means, 47c...
...Rotation shaft of rotation amount detection means, 48...Slider, 5
0...Rotation shaft of driven roller, 51...First and second
driven roller, 52...gear (reduction gear) on the driven roller side, 53...first and second driven rollers, 5
4...Slider, 54b...Notch, 54e...
Spring receiving portion, 55...Frictional force applying roller, 55a...
...Axis, 56...Spring, O...Center of the rotated sphere.

Claims (1)

[Claims for Utility Model Registration] (1) A rotated sphere arranged to be freely rotatable, a first driven roller that contacts the rotated sphere and rotates by the rotational force of the rotated sphere, and the rotated sphere. a second driven roller that is in contact with the rotational force of the rotated sphere and whose axial direction is substantially perpendicular to the axial direction of the first driven roller; a first rotation amount detection means for detecting the rotation amount of the second driven roller based on the displacement amount of the displacement element; In an X-Y direction input device equipped with a frictional force applying roller that applies a frictional force between the rotated amount sphere and the driven roller by elastically urging the first driven roller and the second driven roller. , the rotation amount detection means restricts the movable range of the displacement element of the rotation amount detection means to the range in which the cursor moves on the screen, and prevents the displacement operation of the displacement element when the displacement element reaches the displacement limit; A displacer stopper is provided on the rotation amount detection means to hold the output constant so that the output does not change more than that, and a part of the power from the driven roller is released in the power transmission path from the driven roller to the rotation detection means. A force C smaller than the displacement prevention force A of the displacer stopper
A power relief means configured such that only the amount of rotation is applied to the rotation amount detection means is provided, and when the displacer of the rotation amount detection means is within a displaceable range, the power relief means does not operate and the amount of rotation is removed from the rotated sphere. The power is transmitted to the detection means, the rotation amount of the rotated sphere is detected, and when the displacement element of the rotation amount detection means reaches the displacement limit, the displacement element stopper prevents the displacement element from moving; X characterized in that the power transmission to the rotation amount detection means is reduced by the operation of the power relief means.
-Y direction input device. (2) The frictional force B between the rotated sphere and the driven roller is A
>B>C, and when the displacement element of the rotation amount detection means reaches its displacement limit, the movement of the displacement element is blocked, the power relief means is activated, and the rotated sphere rotates together with the driven roller. An X-Y direction input device according to claim (1) of the utility model registration, characterized in that the device is configured as follows. (3) Claims for registration of a utility model characterized in that the power relief means is constructed between the driven roller and the rotating shaft by adjusting the frictional force at the contact portion between the driven roller and the rotating shaft. The X-Y direction input device according to item (1) or item (2). (4) Utility model registration claim paragraph (1), paragraph (2), or paragraph (3) characterized in that a deceleration means is provided in the power transmission path from the driven roller to the rotation detection means The X-Y direction input device described above. (5) Utility model registration claim No. (4) characterized in that a power relief means is provided in the deceleration means.
The X-Y direction input device described in . (6) The deceleration means includes a small gear with a small number of teeth attached to the rotating shaft of the driven roller, and a large gear with a large number of teeth meshing with this small gear and attached to the rotating shaft of the displacement element of the rotation amount detection means. A claim for registration of a utility model characterized in that a power relief means is formed between the small gear and the rotating shaft by adjusting the frictional force of the contact portion between the small gear and the rotating shaft. The X-Y direction input device according to the range (5). (7) By adjusting the frictional force at the contact portion between the displacement element of the rotation amount detection means and the rotation shaft of this displacement element, a power relief means is formed between the displacement element and the rotation shaft. X-Y as described in paragraph (1) or (2) or (5) of the claims for utility model registration characterized by
Directional input device.