JP3717918B2 - pointing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a pointing device from slipping sideways, and eliminate feeling of staggering. <P>SOLUTION: The pointing device comprises a stick 50A, an assembly 42 for detecting operation, a board 70A, and a housing 72. The stick 50A has a disk part and stick part. A projected part 50A-11 is formed at the bottom surface of the disk part, while a hole part 70A-6 is formed on the board 70A. The projected part 50A-11 loosely fitted into the hole 70A-6. A cylindrical gasket 71 made of rubber is embedded in an annular gap between the projected part 50A-11 and hole part 70A-6. The gasket 71 is made to prevent the stick 50A from slipping sideways without interfering with operation of slanting the stick 50A a bit. <P>COPYRIGHT: (C)2005,JPO&amp;NCIPI

Description

  The present invention relates to a pointing device used for moving a mark on a display screen.

  On the display screen, it is necessary to move the mark by a short distance at the final stage of moving a mark such as a pointer or cursor to the position of a predetermined icon or when drawing a picture on the display screen. .

  Therefore, the pointing device is required to have a structure capable of accurately moving the mark over a short distance on the display screen.

  FIG. 27 shows a conventional pointing device 10.

  The pointing device 10 includes an operating rod 11 that is upright, arc-shaped links 12 and 13 that are arranged in a crossing manner, and encoders 14 and 15. The lower end of the operating rod 11 is supported by the fitting support structure 20 so that the operating rod 10 can be tilted in an arbitrary direction.

  As shown in FIG. 28, the fitting support structure 20 has a structure in which a substantially hemispherical concave portion 23 at the lower end of the operating rod 10 is fitted so as to cover a substantially hemispherical convex portion 22 on the base 21. Have.

  Thus, a slight gap 24 exists between the convex portion 22 and the concave portion 23 over the entire circumference so that the operating rod 10 can be inclined in an arbitrary direction.

  Here, as shown in FIG. 28, the operation when the operator places the fingertip 30 on the top 11a of the operating rod 11 and operates to tilt in the direction of the arrow 31, for example, will be described.

  Since the gap 24 exists, at the very beginning of the operation, the operating rod 11 first moves in the lateral direction indicated by the arrow 32 as shown in the two-dot chain line. Start tilting as a fulcrum.

  When the operating rod 11 moves in the lateral direction, the movement of the operating rod 11 is not normally transmitted to the links 12 and 13, and the encoders 14 and 15 do not perform the operation corresponding to the operation. As a result, on the display screen Mark does not start moving and remains stationary.

  The mark on the display screen starts to move after the operating rod 11 starts to tilt.

  In this way, the operation rod 11 causes a slight lateral movement, so that the mark on the display screen remains stationary without moving even though the operator moves the fingertip 30 slightly. After the fingertip 30 is moved further, the mark on the display screen starts to move.

  That is, in the conventional pointing device 10, even if the operator moves the fingertip 30 by placing the fingertip 30 on the top 11a of the operation rod 11, the mark on the display screen does not start to move immediately. It was.

  For this reason, especially when you want to move a mark on the display screen by a small distance, for example, when you move a mark that has been moved too much to fit the icon, and when you draw a short line with the mark It was hard to get rid of.

  Further, when the operating rod 11 is displaced in the lateral direction, the inner surface 23a of the concave portion 23 rubs the convex portion 22 with a crisp.

  The vibration due to this rubbing propagates through the operation rod 11 and is transmitted to the fingertip of the operator, and the operator feels “feeling”.

  In this respect, the operability of the conventional pointing device 10 is not good.

  SUMMARY An advantage of some aspects of the invention is that it provides a pointing device, a keyboard, and a computer apparatus that have solved the above-described problems.

The present invention comprises a disc portion and a stick portion that is upright from the disc portion and is acted on by an operating force, and the disc portion has a ring-shaped ring-shaped convex portion on the upper surface, An operation body that has a plurality of protrusions on the periphery of the lower surface, the stick portion has a protrusion at the center of the bottom surface, and is tilted by operating force applied to the stick portion;
A support body that surrounds the disk portion, and has a hole portion in which a central projection portion of the bottom surface of the stick portion is fitted with an annular gap, and supports the operation body in a tiltable manner;
It is provided in a portion of the support that faces the lower surface of the disk portion, and when the operation body is operated, the operation body is operated by being pressed by a convex portion on the lower surface of the disk portion. An operation detection body for detecting
It is made of a material having elasticity, has a shape made of a cylindrical portion, and includes a packing that fills an annular gap between the central protrusion on the bottom surface of the stick portion and the hole of the support,
When the operating body is operated, the operating body is limited in displacement in the radial direction of the disk portion by the fitting of the central protrusion of the bottom surface of the stick portion and the hole of the support, and The ring-shaped projecting portion is inclined while being elastically deformed, with the portion where the ring-shaped convex portion is in contact with the support as a fulcrum.

  According to the present invention, when the operating body is operated, it is possible to prevent the operating body from being displaced laterally with respect to the support body.

  Thereby, first, unnecessary play of the operating body can be eliminated. For this reason, it is possible to move the mark on the surface screen appropriately according to the operation of the operating body, particularly in the initial operation stage.

  Secondly, the operation body does not rub the support, and so-called harsh feeling can be prevented.

  The best mode for carrying out the invention will be described below.

  1 and 2 show a pointing device 40 according to a first embodiment of the present invention.

  The pointing device 40 includes an operation assembly 41 that is a part operated by an operator, an operation detection assembly 42 that detects that the operation assembly 41 has been operated, and the operation assembly 41 can be tilted in an arbitrary direction. And a support assembly 43 for supporting.

  The operation assembly 11, the operation detection assembly 12, and the support assembly 13 constitute an operation body, an operation detection body, and a support body, respectively, in the claims.

  The pointing device 40 controls the movement direction and the movement speed of the mark on the display screen.

  The operation assembly 41 includes a stake 50 and a cap 51.

  Here, the maximum inclination angle of the operation assembly 41 when the operation assembly 41 is operated is as small as several degrees. For this reason, even if the packing 71 described later is incorporated, the operation assembly 41 can be operated to the operation limit, and the operability of the operation assembly 41 is not impaired at all.

  The operation detection assembly 42 includes a lower membrane sheet portion 60, a spacer 61, an upper membrane sheet portion 62, and a pressure-sensitive conductive rubber piece 63.

  The support assembly 43 includes a substrate 70, a packing 71, and a housing 72.

  The pointing device 40 is incorporated in a portion where the key tops of the keyboard 80 are arranged as shown in FIG.

  That is, the keyboard 80 has the pointing device 40.

  The pointing device 40 is incorporated in the keyboard 80 with the cap 51 protruding from a space 84 formed between the “G” key top 81, the “H” key top 82, and the “B” key top 83. It is.

  3 has a configuration in which the keyboard 80 is incorporated.

Hereinafter, the components constituting each assembly will be described.
[Operation assembly 41]
(1) Stick 50
As shown in FIGS. 1, 2, and 4, the stick 50 includes a disc portion 50-1 and a columnar stick portion 50-2 that stands upright from the disc portion 50-1 and protrudes upward.

  The stick part 50-2 has a plurality of grooves 50-3 on its peripheral surface. This groove 50-3 constitutes the groove in claim 16.

  The groove 50-3 extends from the top 50-4 of the stick 50-2 to the height position H1 in the axial direction of the stick 50-2. The height position H1 is slightly below the height position H2 at the lower end of the attached cap 51.

  The groove 50-3 acts to allow the cap 51 to be strongly fixed by releasing the air when the cap is attached and the cap 51 partially biting into the groove 50-3 to increase the resistance against the removal of the cap 51. .

  The disc part 50-1 has a concave part 50-5 at a position equally divided into four parts. The concave portion 50-5 cooperates with a convex portion of the housing jig 72 described later to restrict the stick 50 from turning unnecessarily, that is, to prevent the stick 50 from rotating.

  As shown in FIG. 4, a hemispherical convex portion 50-6 is provided on the lower surface of the disc portion 50-1 at a site divided into four equal parts in the circumferential direction.

  This convex portion 50-6 functions as an action point when the stick is operated.

  The convex portions 50-6 and the concave portions 50-5 are alternately arranged in the circumferential direction.

  A hole 50-7 is formed at the center of the lower surface of the disc portion 50-1. The hole 50-7 has a top plate portion 50-8. A packing described later is accommodated in the hole 50-7.

  Further, a ring-shaped convex portion 50-9 is formed on the upper surface of the disc portion 50-1.

As will be described later, this ring-shaped convex portion 50-9 forms a fulcrum when the stick is operated.
(2) Cap 51
The cap 51 has a cylindrical portion 51-1 and a top plate portion 51-2.

  The cap 51 has a hemispherical convex top surface 51-3.

  A fingertip is applied to the top surface 51-3, and the top surface 51-3 functions as a power point.

  The cap 51 is made of rubber so that the fingertip does not slip, and the top surface 51-3 has a texture 51-4.

  As shown in FIG. 5, the cap 51 is attached by being pushed into the stick portion 50-2 with a force F.

At this time, the air in the cap 51 escapes through the groove 50-3 as indicated by the arrow A, and the cap 51 is pushed to the final position and attached normally.
[Operation detection assembly 42]
(1) Lower membrane sheet part 60
As shown in FIGS. 6 and 2, the end portion of the belt-like sheet 64 constitutes the lower membrane sheet portion 60.

  The lower membrane sheet portion 60 has a hole 60-1 in the center, and four lower electrodes on the upper surface around the hole 60-1.

  The four lower electrodes are positioned on the orthogonal X and Y axes, and are positioned in the X1 direction with respect to the hole 60-1 and in the X2 direction with respect to the hole 60-1. X2 lower electrode 60-3, a Y1 lower electrode 60-4 positioned in the Y1 direction with respect to the hole 60-1, and a Y2 lower electrode 60-5 positioned in the Y2 direction with respect to the hole 60-1. .

The lower electrodes 60-2 to 60-5 are formed at the ends of separate wiring patterns 60-6 to 60-9 on the belt-like sheet 64.
(2) Spacer 61
As shown in FIGS. 6 and 7, the spacer 61 has a substantially cross-shaped opening window 61-1.

  The opening window 61-1 has four window portions 61-2 to 61-5.

  The spacer 61 is fixed in the window portions 61-2 to 61-5 so as to overlap the lower membrane sheet portion 61 in the direction in which the lower electrodes 60-2 to 60-5 are exposed.

As shown in FIG. 8, the spacer 61 has a thickness t1. This thickness t1 is slightly larger than the thickness t2 of a heat-sensitive conductive rubber piece 63 described later.
(3) Heat-sensitive conductive rubber piece 63
As shown in FIGS. 6 and 7, the pressure-sensitive conductive rubber piece 63 has a shape corresponding to the opening window 61-1 of the spacer 61.

  The pressure-sensitive conductive rubber piece 63 has a substantially cross shape and includes four arm portions 63-2 to 63-5.

  A notch 63-6 exists between the arms 63-2 to 63-5 adjacent in the circumferential direction, and the arms 63-2 to 63-5 adjacent to each other in the circumferential direction are divided.

  Each arm part 63-2-63-5 has a substantially circular shape.

  The pressure-sensitive conductive rubber piece 63 has a hole 63-1 at the center.

  When attention is paid to the arm portion, the pressure-sensitive conductive rubber piece 63 has a configuration in which the arm portions 63-2 to 63-5 are lined up at equal angular intervals in the circumferential direction in a state where the arm portions 63-2 to 63-5 are divided in the circumferential direction. Have.

  Each arm part 63-2-63-5 comprises the part pressed when the stick 50 is operated.

  As shown in FIG. 8, the pressure-sensitive conductive rubber piece 63 has a thickness t2. This thickness t2 is slightly smaller than the thickness t1 of the spacer 61.

  The pressure-sensitive conductive rubber piece 63 has a very high electric resistance in the thickness t2 direction when not compressed, and has a characteristic that the electric resistance in the thickness direction of the portion decreases when pressed and compressed. Have.

The pressure-sensitive conductive rubber piece 63 is accommodated in the opening window 61-1, with the arm portions 63-2 to 63-4 fitted into the window portions 61-2 to 61-5, respectively.
(4) Upper membrane sheet part 62
As shown in FIGS. 6 and 2, the end portion of the branched belt-like sheet 64-1 branched from the belt-like sheet 64 constitutes the upper membrane sheet portion 62.

  The upper membrane sheet portion 62 is turned upside down by being bent in the middle of the branch strip sheet 64-1, as indicated by an arrow 65, and overlapped on the spacer 61.

  For this reason, the X and Y axes relating to the upper membrane sheet portion 62 are shown in accordance with the orientation of the state attached on the spacer 61.

  The upper membrane sheet portion 62 has a hole 62-1 in the center, and four upper electrodes on the upper surface around the hole 62-1.

  The four upper electrodes are positioned on the orthogonal X and Y axes, and are positioned in the X1 direction with respect to the hole 62-1 and in the X2 direction with respect to the hole 62-1. X2 upper electrode 62-3, a Y1 upper electrode 62-4 positioned in the Y1 direction with respect to the hole 62-1, and a Y2 upper electrode 62-5 positioned in the Y2 direction with respect to the hole 62-1. .

All the upper electrodes 62-2 to 62-5 are connected by a wiring pattern 62-6, and are connected to one wiring pattern 62-7 on the belt-like sheet 64 and the branch belt-like sheet 64-1, Configure the common electrode.
(5) Operation detection assembly 42
As shown in FIG. 7, the operation detection assembly 42 includes a lower membrane sheet portion 60, a spacer 61, and an upper membrane sheet portion 62 that are stacked. It has the structure arranged between the membrane sheet part 62.

  The operation detection assembly 42 is positioned on the substrate 70 by fitting the positioning holes to the two protrusions 70-1 and 70-2 on the substrate 70.

  The operation detection assembly 42 includes four operation detection units, that is, an X1 direction operation detection unit 66-1 positioned in the X1 direction with respect to the center O1, and an X2 direction operation detection unit 66 positioned in the X2 direction with respect to the center O1. -2, Y1 direction operation detector 66-3 located in the Y1 direction with respect to the center O1, and Y2 direction operation detector 66-4 located in the Y2 direction with respect to the center O1.

  As shown in FIG. 8, the X1 direction operation detecting unit 66-2 has an upper mebrene sheet portion 62 and a lower membrane sheet portion 60 arranged one above the other with a spacer 61 therebetween, and an X1 upper electrode 62-2. And X1 lower electrode 60-2 are spaced apart from each other, and the arm of pressure-sensitive conductive rubber piece 63 is placed in a flat space 67-1 formed between upper membrane sheet portion 62 and lower membrane sheet portion 60. The portion 63-2 is accommodated, and a gap 68 is provided between the arm portion 63-2 and the X1 upper electrode 62-2.

  The other operation detectors 66-3 to 66-5 have the same structure as the X1 direction operation detector 66-2.

  The X2 direction operation detector 66-3 has a structure in which an arm 63-2 is arranged with a slight gap between the X2 lower electrode 60-3 and the X2 upper electrode 62-3 facing each other. .

  The Y1 direction operation detector 66-4 has a structure in which an arm 63-4 is arranged with a slight gap between the Y1 lower electrode 60-4 and the Y1 upper electrode 62-4 facing each other. .

The Y2 direction operation detection unit 66-5 has a structure in which an arm part 63-5 is arranged with a slight gap between the Y2 lower electrode 60-5 and the Y2 upper electrode 62-5 facing each other. .
[Support assembly 43]
(1) Substrate 40
As shown in FIG. 2, the substrate 70 has a substantially triangular shape, and has a substantially cylindrical protrusion 70-3 in the center.

  The protrusion 70-3 has a hemispherical top 70-4.

The board 70 has a screw hole 70-5 for fixing the housing 72 to the board 70 and a screw hole 70-6 for fixing the board 70 to the resin board of the keyboard 80, respectively. At each vertex position.
(2) Housing 72
As shown in FIGS. 1, 2, and 4, the housing 72 has a substantially triangular plate shape.

  The housing 72 has leg portions 72-1 to 72-3 at each apex portion of the lower surface.

  The housing 72 has an operation detection assembly mounting portion 72-4 on the lower surface.

  The operation detection assembly mounting portion 72-4 includes a lower surface 72-5 of the housing 72, a flat surface 72-6 including lower end surfaces 72-5 of the leg portions 72-1 to 72-3, and a lower surface 72 of the housing 72. -7, which is a flat space with three sides closed by the inner side surfaces 72-8 of the legs 72-1 to 72-3.

  Further, the housing 72 has a disk portion accommodating portion 72-9 in the center portion of the lower surface.

  The disc portion accommodating portion 72-9 is composed of a recess having a size corresponding to the disc portion 50-1 of the stick 50 in FIG.

  Further, the disc portion accommodating portion 72-9 has four convex portions 72-10 protruding from the periphery.

  The convex portion 72-10 is positioned on the X1, X2, Y1, and Y2 directions with respect to the center of the disc portion accommodating portion 72-8.

  In addition, the disc portion accommodating portion 72-9 has a ceiling surface 72-11.

  The housing 72 has a hole 72-12 in the center of the disc portion accommodating portion 72-9.

The hole 72-12 is formed inside the tapered ring portion 72-13 that protrudes from the upper surface of the housing 72.
(3) Packing 71
As shown in FIGS. 4 and 2, the packing 71 is made of rubber, and includes a cylindrical portion 71-1 and a top plate portion 71-2, and has a hole 71-3 at the center.

  As shown in FIG. 1, the packing 71 is press-fitted into the hole 50-7 on the bottom surface of the stick 50 and attached to the stick 50.

  Further, the hole 71-3 of the packing 71 is fitted into the protrusion 70-3 on the substrate 70.

  As will be described later, the packing 71 is provided so that the operation assembly 41 does not move laterally.

The packing 71 is made of rubber so that when the stick 50 is operated, it is elastically deformed so as not to impair the operability of the stick 50, that is, the pointing device 40 is normally operated. It is to do.
[Configuration of pointing device 40]
Next, the configuration of the pointing device 40 will be described with particular reference to FIG.

  The housing 72 is fixed on the substrate 70 by being screwed with screws 100 at three positions from the lower surface side of the substrate 70.

  The operation detection body 42 is housed in the operation detection assembly mounting portion 72-4 of the housing 72 and is fixed on the substrate 70 by pressing the spacer 61 portion.

  In the stick 50, the disc portion 50-1 is accommodated in the disc portion accommodating portion 72-9 and is located above the operation detection assembly 42, and the stick portion 50-2 has a hole 72-12. It is attached in a state of protruding upward.

  The packing 72 is press-fitted into the hole 50-7, is fitted into the protrusion 70-3, and fills the annular gap 73 between the protrusion 70-3 and the hole 50-7. .

  The stick 50 can be tilted in any direction within a small angle range.

  Further, as shown in an enlarged view in FIG. 8, the stick 50 has a hemispherical convex portion 50-6 mounted on the membrane sheet portion 62 of each of the operation detecting units 66-1 to 66-4, and has a ring-shaped convex shape. The portion 50-9 is in contact with the ceiling surface 72-11 of the housing 72.

  The cap 51 is attached to the top of the stick part 50-2. The top surface 51-3 of the cap 51 constitutes an operation unit.

  As shown in FIG. 1, the pointing device 40 configured as described above is screwed at three locations on the substrate 70 to a key top support substrate 85 made of synthetic resin of the keyboard 80 with screws 101.

  The key top support substrate 85 is fixed on the keyboard 87 with a membrane switch assembly 86 interposed therebetween.

The substrate 70 of the pointing device 40 is located at the same height as the keyboard substrate 87.
[Operation and operation of pointing device 40]
The pointing device 40 is operated, for example, while operating the keyboard.

  In this operation, with the hand placed at the home position on the keyboard 80, the index finger is extended and applied to the top surface 51-3 of the cap 51 as shown in FIG. It is done by pulling or pulling.

  By this operation, the stick 50 is slightly inclined in the direction in which the finger is moved (for example, the X1 direction).

  As a result, as shown in FIG. 9, the convex portion 50-6 makes point contact and pushes the upper membrane sheet portion 62 to bend downward so that the X1 upper electrode 62-2 becomes a pressure-sensitive conductive rubber. The pressure-sensitive conductive rubber piece 63 is pressed against the piece 63 (arm portion 63-2) and compressed in a form corresponding to the convex portion 50-6.

  When the pressure-sensitive conductive rubber piece 63 (arm portion 63-2) is compressed, the electric resistance value of the pressure-sensitive conductive rubber piece 63 (arm portion 63-2) changes as indicated by a broken line I in FIG.

  As will be described later, a mark movement control signal corresponding to the change in the electrical resistance value is output, and the stick 50 is operated as indicated by an arrow 93 in the display screen 91 of the computer device 90 in FIG. It moves in the same direction as the direction (X1 direction) at a speed corresponding to the operation force on the stick 50 (faster when operated harder and slower when operated weakly).

  When the stick 50 is operated to return to the original state, the moving speed of the mark 92 becomes slow.

  When the index finger is released from the cap 51, the stick 50 returns to the upright original state shown in FIGS. 1 and 8 by the elastic force of the upper membrane sheet portion 62 itself.

  As a result, the pressure-sensitive conductive rubber piece 63 (arm portion 63-2) is in an uncompressed state, the mark movement control signal is lost, the movement of the mark 92 is stopped, and the mark 92 reaches a predetermined icon position. .

When the stick 50 is operated in a direction different from the X1 direction, the pointing device 40 operates in the same manner as described above.
[Relationship between pointing device 40 and control circuit]
As shown in FIG. 9, the operation detection units 66-1 to 66-4 are represented by variable resistors.

  The control circuit 110 includes a CPU 111 and voltage dividing resistors 112-1 to 112-4. The voltage dividing resistors 112-1 to 112-4 are connected to the operation detection units 66-1 to 66-4, respectively.

  The voltage obtained by dividing VCC at the input terminal P1 of the CPU 111 by the electric resistance value R1 of the operation detecting unit 66-2 and the electric resistance value R2 of the voltage dividing resistor 112-1.

が加わる。この電圧ＶX1が検出信号を構成する。

Will be added. This voltage VX1 constitutes a detection signal.

  When the operating force F0 applied to the stick 50 is increased, the pressing force FP at which the convex portion 50-6 pushes the pressure-sensitive conductive rubber piece 63 increases.

  When the pressing force FP increases, the electric resistance value of the pressure-sensitive conductive rubber piece 63 decreases as shown by the line I in FIG. 10, the electric resistance value R1 of the operation detection unit 66-2 decreases, and the input terminal P1 of the CPU 111 Is increased as shown by line II in FIG.

  A line II representing the relationship between the pressing force FP (operation force FS) and the voltage V1 (detection signal) is a curve having two inflection points a and b. Therefore, processing for making the characteristic of the detection signal linear is performed.

  This processing is performed in the CPU 111.

Specifically, the detection signal is E (X) = f (X) EXPt EXTP
The boundary conditions are processed as 0 ≦ p ≦ a, a <p ≦ b, and b <p to form a linear function.

  As a result, the detection signal is a mark movement control signal having a linear characteristic as shown by line III in FIG.

  The detection signals VX2, VY1, and VY2 related to the other operation detection units 66-3, 66-4, and 66-5 are also processed in the same manner as described above to become mark control signals.

  A mark movement control signal is output from the CPU 111 and supplied to a mark movement control unit (not shown) in the computer device 50.

The signal processing for forming the mark movement control signal is performed efficiently with a small memory capacity.
[Characteristics of pointing device 40]
Next, features of the pointing device 40 that could not be sufficiently described in the above description will be described.

The pointing device 40 has various characteristics described below, and has good operability and good operation accuracy.
(1) Structure in which the lever ratio of the stick 50 is close to 1: 1 In FIG. 12, the stick 50 is placed on the top surface 51-3 of the cap 51 and pushed in the X1 direction so that the stick 50 is tilted in the X1 direction. Assume that you have operated.

  The stick 50 is rotated clockwise around a point 120 where the portion of the ring-shaped convex portion 50-9 in the X2 direction opposite to X1 is in contact with the ceiling surface 72-11 of the housing 72. The

  Point 121 is a force point, and point 122 is an action point.

  The lever ratio L1: L2 is close to 1: 1.

  In general, since the position of the lower end of the center of the stick serves as a fulcrum, the lever ratio is close to 2: 1.

  By making the lever ratio smaller than 2: 1 and close to 1: 1, a strong force is less likely to act on the action point 122 than in the general structure described above.

  This is convenient when the pressure-sensitive conductive rubber piece 63 is used as the pressure-sensitive means.

  That is, when a strong force is repeatedly applied to the pressure-sensitive conductive rubber, fatigue failure easily occurs, and the life of the pointing device is shortened.

However, in the pointing device 60 of the present embodiment, it is effectively avoided that a strong force is unnecessarily applied to the pressure-sensitive conductive rubber piece 63 in view of the above lever ratio. Therefore, the pointing device 60 has a considerably long life as compared with the conventional device.
(2) A configuration in which the hole 50-7 of the stick 50 is fitted into the protrusion 70-3 of the substrate 70 and the packing 71 is provided between the protrusion 70-3 and the hole 50-7. 71-1 fills the gap of 360 degrees between the protrusion 70-3 and the hole 50-7.

  Since the packing 71 is provided, the stick 50 is restricted from being displaced in the lateral direction (X1, X2, Y1, Y2 directions) with respect to the substrate 70 and the housing 72.

  This has the following two effects.

  (i) Good operation accuracy.

  When the fingertip 30 applied to the cap 51 is moved, the stick 50 is immediately tilted, and the mark on the display screen starts moving.

  That is, the problem that the mark on the display screen does not move despite the movement of the fingertip 30 applied to the cap 51 is solved.

  In a conventional pointing device, as the fingertip is moved, the stick first slightly shifts to the side and then begins to tilt. For this reason, when the fingertip is moved a little, the mark on the display screen does not move, and it is difficult to perform an operation when trying to move the mark on the display screen by a small distance.

  On the other hand, in the pointing device 40 of the present embodiment, since there is no play in the horizontal direction on the stick 50, the mark on the display screen moves only a little by moving the fingertip a little.

  For this reason, it is possible to easily perform the final operation of aligning the mark with the desired icon position.

  (ii) There is no tingling.

  When the stick 50 is laterally displaced, the ring-shaped convex portion 50-9 rubs the ceiling surface 72-11.

  When this rubbing occurs, a terrible impact occurs at the rubbing portion.

This impact is transmitted to the fingertip 30 via the stick 50, and a feeling of tingling is felt. However, according to the pointing device 40 in the above embodiment, the stick 50 is not laterally displaced, so that the ring-shaped convex portion 50-9 does not rub against the top surface 72-1, and there is no harsh feeling. Therefore, the pointing device 40 has good operability.
(3) Configuration in which the packing 71 is made of rubber, is provided at the center of the stick 50, and has a cylindrical shape
(i) The operation of tilting the stick 50 is performed smoothly.

  The packing 71 is made of rubber and can be elastically compressed and deformed.

  Moreover, since the stick 50 is inclined with the point 120 as a fulcrum, the hole 50-7 is displaced substantially downward, and the lateral displacement of the hole 50-7 is small.

  For this reason, the operation | movement which the stick 50 inclines is performed smoothly, without being restrict | limited by the packing 71 at all.

  (ii) Apply an auxiliary force to return the stick 50 to the upright position.

  The force for restoring the stick 50 whose operating force has been released to the upright position is mainly applied by the upper membrane sheet portion 62.

The packing 7 supplementarily applies a force for restoring the stick 50 to the upright position by its elastic force.
(4) Configuration in which the projection 70-3 is provided on the substrate 70 When the cap 51 is strongly pressed in the Z1 direction, the top plate 50-8 of the hole 50-8 hits the top 70-4 of the projection 70-3. , The stick 50 cannot be pushed down below. The top 70-4 of the projection 70-3 constitutes a receiving part.

This prevents an excessively strong force from acting on the pressure-sensitive conductive rubber piece 63.
(5) The packing 71 has a top plate portion 71-2.
(i) When the cap 51 is pressed against the top plate portion 71-2, the top plate portion 71-2 hits the top portion 70-4 of the projecting portion 70-3 to alleviate the impact.

(ii) The top plate portion 71-2 is locked to the top portion 70-4 of the projecting portion 70-3, and the cap 51 is prevented from falling off from the hole 50-7.
(6) Configuration in which the concave portion 50-5 of the stick 50 is fitted to the convex portion 70-10 of the housing 72. Since the concave portion 50-5 and the convex portion 70-10 are fitted, the stick 50 has a shaft ... Rotation about 50-10 is restricted.

  For this reason, the convex part 50-6 is kept in the location corresponding to the operation detection parts 66-1 to 66-4.

  Therefore, when the stick 50 is operated in an arbitrary direction, the operation detection units 66-1 to 66-4 positioned in that direction are reliably operated.

  Further, when the operator operates the stick 50, if the stick 50 rotates about the axis 50-10, the stick 50 may move in a direction slightly deviated from the direction that the operator thinks. Will occur.

  However, according to the present embodiment, since the stick 50 is prevented from rotating, the stick 50 is correctly moved in the direction intended by the operator. Thereby, the pointing device 40 has good operability.

The number of the concave portions 50-5 and the number of the convex portions 70-10 are not limited to four and may be one or more.
(7) The pressure-sensitive conductive rubber piece 63 has a shape having arm parts 63-2 to 63-5 divided by the notch part 63-6, and each arm part 63-2 to 63-5 is a window part. Structure fitted to 61-2 to 61-5
(i) The circumferentially adjacent arm portions 63-2 to 63-5 are divided by a notch portion 63-6, and when one arm portion 63-2 is pressed and compressed, the influence thereof is It is cut off by the notch 63-6 and does not reach any further. For this reason, the arm portions 63-3 to 63-5 are not affected when the one arm portion 63-2 is pressed.

  As a result, no noise signal is output from the operation detection units 66-1 to 66-4 that are not pressed.

  Therefore, a detection signal with a high S / N ratio is taken out, and the pointing device 40 has high operation accuracy.

  (ii) The pressure-sensitive conductive rubber piece 63 is positioned.

The pressure-sensitive conductive rubber piece 63 is positioned by fitting the arm portions 63-2 to 63-5 to the corresponding window portions 63-2 to 63-5.
(8) Structure having a slight gap 68 between the pressure-sensitive conductive rubber piece 63 (arm portion 63-2) and the X2 upper electrode 62-2 The upper membrane sheet portion 62 using the pointing device 40 for many years Even when the X is slightly lowered, the X1 upper electrode 62-2 is kept in a state where it is not in contact with the pressure-sensitive conductive rubber piece 63 (arm portion 63-2).

  As a result, the electric resistance values of the operation detection units 66-1 to 66-4 in a state where no operation is performed can be kept infinite for many years.

  Thereby, the pointing device 40 has high reliability.

  That is, when the X1 lower electrode 60-2 and the X1 upper electrode 62-2 are in contact with the pressure-sensitive conductive rubber piece 63, even if the pressure-sensitive conductive rubber piece 63 is not pressed, both electrodes 60-2, 60 are used. There is a possibility that a minute current flows between -2. This minute current deteriorates the operation accuracy of the pointing device.

According to the present embodiment, since the gap 68 exists, the above-described minute current never flows, and the pointing device 40 has high operation accuracy.
[Modification of pointing device 40]
(1) Structure of the portion that supports the stick 50A As shown in FIG. 13, the portion that supports the stick 50A is provided with a columnar protrusion 50A-11 on the stick 50A, as shown in FIG. Alternatively, the hole 70A-6 may be provided, the protrusion 50A-11 may be fitted into the hole 70A-6, and the packing 71 may be present therebetween.
(2) Stick 50B
Instead of the stick 50, a stick 50B shown in FIG. 14 may be used. The stick 50B has, instead of the hemispherical convex portion 50-6, a shape obtained by cutting a part of a ring having a circular ring shape, that is, a substantially semicylindrical convex portion 50B-6 long in the circumferential direction. Have.

  Since the convex portion 50B-6 has a substantially semi-cylindrical shape, the upper membrane sheet portion 62 is pressed in a line contact state wider than the point contact of the convex portion 50B-6.

  As a result, the pressure-sensitive conductive rubber piece 63 is more reliably pressed as compared with the case where the pressure-sensitive conductive rubber piece 63 is pressed by the hemispherical convex portion 50-6.

As a result, the pointing device incorporating the stick 50B can output a detection signal accurately corresponding to the direction in which the stick 50B is operated, and has high direction sensitivity.
(3) Stick 50C
Instead of the stick 50, a stick 50C shown in FIG. 15 may be used. The stick 50C has a ring-shaped convex portion 50C-6 on the lower surface of the disk portion.

  The ring-shaped convex portion 50C-6 reliably presses the pressure-sensitive conductive rubber piece 63 as in the case of the convex portion 50B-6.

Therefore, the pointing device incorporating the stick 50C has high directional sensitivity.
(4) Packing 71A
Instead of the packing 71, a cylindrical packing 71A having no top plate portion shown in FIG. 16 may be used. Even if this packing 71A is used, the pointing device has the same effect as the pointing device of the above embodiment.
(5) Operation detection unit 66A-1
As shown in FIG. 17, the operation detection unit 66A-1 has a resist film 60-10 on the upper surface of the lower membrane sheet unit 60.

  The resist film 60-10 has an opening window 60-11 where the X1 lower electrode 60-2 is exposed.

  The opening window 60-11 is larger than the X1 lower electrode 60-2 and smaller than the arm portion 63-2 of the pressure-sensitive conductive rubber piece 63.

  The resist film 60-10 has a thickness t4 thicker than the thickness t3 of the X1 lower electrode 60-2.

  The arm portion 63-2 of the pressure-sensitive conductive rubber piece 63 is placed on the resist film 60-10.

  The upper membrane sheet portion 62 is placed on the arm portion 63-2. The X1 upper electrode 62-2 is in contact with the arm portion 63-2.

  The arm portion 63-2 slightly floats with respect to the X1 lower electrode 60-2.

  There is a gap 68A between the arm 63-2 and the X1 lower electrode 60-2, and the X1 lower electrode 60-2 is not in contact with the arm 63-2.

According to the operation detection unit 66A-1, the same object as the operation detection unit 66 can be achieved without using the spacer 61.
(6) Pressure sensitive conductive rubber piece 63A
As shown in FIG. 18, the pressure-sensitive conductive rubber piece 63A has a notch 63A-6 facing the center 63A-7 between the arms 63A-2 to 63A-5.

  The notch 63A-6 is formed of a line segment 63A-8 connecting the centers 63A-4a and 63A-3a of the arms adjacent to each other in the circumferential direction, 63A-4, 63A-3, and the pressure-sensitive conductive rubber piece 63A. It has entered into the center 63A-7 direction up to the position where the dimension c has entered.

  The notch 63A-6 causes the arm 63A-3 to be pressed and compressed, and the influence of the deformation is cut off by the notch 63A-6 and does not reach the arm 634A-4.

  In the drawings showing the second to fourth embodiments, the same reference numerals are given to the portions corresponding to the components shown in FIG. 1, and the description thereof is omitted.

  FIG. 19 shows a pointing device 40A according to the second embodiment of the present invention. The pointing device 40A has a cylindrical rubber packing 130.

  The packing 130 is fitted and attached to a base portion of a stick portion 50D-2 as a rod-like portion of the stick 50D, and a taper-shaped ring portion 72-13 (opening 72-) of the stick portion 50D-2 and the housing 72. 12) The gap 131 between them is filled.

  The packing 130 limits the lateral displacement of the stick 50D during operation. In addition, since the stick 50D does not move sideways, no gritty feeling occurs.

  Further, the disc portion 50D-1 of the stick 50D has a flat bottom surface 50D-12.

  The flat bottom surface 50D-12 faces the protrusion 70B-3 of the substrate 70B with a slight gap 132 therebetween.

  FIG. 20 shows a pointing device 40B according to a third embodiment of the present invention. The pointing device 40B is different from the pointing device 40 of FIG. 1 in that it has a stick 50E instead of the stick 50 and additionally has a ring-shaped leaf spring member 140, and otherwise the pointing device of FIG. 40.

  The stick 50E has a shape obtained by scraping the ring-shaped convex portion 50-9 from the stick 50 shown in FIG.

  As shown in FIG. 21, the leaf spring member 140 has a ring shape with a corrugated cross section.

  This ring-shaped leaf spring member 140 constitutes a preload applying means, and is deformed so as to be slightly crushed as shown in FIG. 20, and the upper surface of the disc portion 50E-1 of the stick 50E and the housing 72. It is provided between the ceiling surface 72-11.

  The stick 50E is pushed downward by the spring force of the ring-shaped leaf spring member 140, and the hemispherical convex portion 50E-6 presses the operation detecting portions 66-1 to 66-4 with the force FP1.

  Here, the force FP1 is a force corresponding to a substantially intermediate point between the inflection points a and b, as shown in FIG.

  That is, each of the operation detection units 66-1 to 66-4 is in a state where the preload FP1 is acting.

  Therefore, in the state where the stick 50E is not operated, the voltages VX1 and VX2 in FIG. 23 are both Va.

  Assume that the stick 50E is operated so as to be tilted in the X1 direction, for example.

  By this operation, the pressing force of the operation detection unit 66-1 is increased, and the voltage VX1 increases along the line X as shown by an arrow 141 in FIG.

  On the other hand, the pressing force of the operation detection unit 66-2 decreases, and the voltage VX2 decreases along the line XI as indicated by an arrow 142 in FIG.

  As illustrated in FIG. 22, the control circuit 110 </ b> A includes a differential circuit 143.

  The differential circuit 143 includes two subtractors 144 and 145 connected to the operation detectors 66-2 and 66-3, and two subtractors 146 and 147 connected to the operation detectors 66-4 and 66-5. Have

  The subtracter 144 performs (VX1-VX2).

  The subtracter 145 performs (VX2−VX1).

  The subtracter 146 performs (VY1−VY2).

  The subtracter 147 performs (VY2−VY1).

  The output voltages VX1a to VY2a of the subtractors 144/146 constitute detection signals.

  When the stick 50E is operated to tilt in the X1 direction as described above, the voltages VX1 and VX2 are subtracted by the subtractors 144 and 145, and the voltage VX1a of the detection signal is indicated by an arrow 147 in FIG. As shown in FIG. 23, the voltage Vx2a of the detection signal increases along the line XII and decreases along the line XIII as shown by an arrow 148 in FIG.

  Here, because of the difference between the subtractors 144 and 145, the slope α2 of the lines XII and XIII is steeper than the slope α1 of the lines X and XI.

  Therefore, the degree of change in the voltage of the detection signal with respect to the change in the operation angle for tilting the stick 50E is large.

  Therefore, the pointing device 40B has higher operation sensitivity than the pointing device 40 of FIG.

  Further, the ring-shaped leaf spring member 140 functions as a fulcrum when the stick 50E is operated to be tilted.

[Fourth embodiment]
FIG. 24 shows a pointing device 40C according to a fourth embodiment of the present invention.

  The pointing device 40C has an initial pressure adjusting mechanism 160.

  The initial pressure refers to a pressing force FPi (see FIG. 25) to be applied to the operation detection unit 66-1 or the like in order to raise a substantial detection signal.

  The substantive detection signal is a signal having a voltage exceeding the minimum voltage Vmin necessary for moving the mark on the display screen.

  When a pressing force is applied to the operation detection unit 66-1, the pressing force when a substantial detection signal is output is defined as FP10. The pressure (preload) applied to the operation detection unit 66-1 from the beginning is assumed to be FP11. Then, FP10-FP11 is the initial pressure FPi. Corresponding to the initial pressure FPi, there is an operation initial pressure to be applied to the stick 50 (cap 51) in order to raise the detection signal.

  Therefore, the adjustment of the initial pressure means that the operation initial pressure is adjusted.

  The initial pressure adjustment mechanism 160 includes a silicon rubber piece 161 as a spacer provided between the substrate 70C and the housing 72A, and an adjustment screw 162 made of metal or synthetic resin.

  The adjustment screw 162 is inserted through the hole 72A-15 of the housing 72A from above and is screwed into the screw hole 70C-10 of the substrate 70C.

  The adjustment screws 162 are, for example, four, and are provided at locations corresponding to the operation detection units 66-1 to 66-4.

  When the adjustment screw 162 is turned in the tightening direction, the housing 72A is displaced in a direction approaching the substrate 70C, the distance between the housing 72A and the substrate 70C is narrowed, and the stick 50 is pushed by the housing 72A and approaches the substrate 70C. The hemispherical convex part 50-6 pushes the operation detecting parts 66-1 to 66-4 and applies a preload thereto.

  When the adjusting screw 162 is tightened, the preload FP11 increases and the initial pressure FPi (operation initial pressure) decreases.

  When the adjustment screw 162 is loosened, the preload FP11 decreases and the initial pressure FPi (operation initial pressure) increases.

  In the final stage of assembling the pointing device 40C, the adjustment screw 162 is appropriately turned.

  As a result, the preload FP11 is appropriately varied, and the initial pressure FPi is kept within the specification range.

  As a result, the pointing device 40C having a small variation in the initial pressure FPi, that is, the operation initial pressure is manufactured.

  Further, the adjustment screw 162 may be appropriately rotated by a person who operates the keyboard. This is in order to match the strength of the fingertip of the operator.

  For example, in the case of a person with weak fingertip force, the operation is easier when the initial pressure FPi (operation initial pressure) is slightly smaller than the standard. Therefore, the adjustment screw 162 is slightly tightened. As a result, the preload FP11 increases and the initial pressure FPi (operation initial pressure) slightly decreases.

  On the contrary, in the case of a person with a strong fingertip force, it is easy to operate the stick strongly. Therefore, it is easier to operate when the initial pressure FPi (operation initial pressure) is slightly larger than the standard. Therefore, the adjustment screw 161 is slightly loosened. As a result, the preload FP11 decreases and the initial pressure FPi (operation initial pressure) slightly increases.

[Modification]
(1) Modification of Operation Detection Assembly FIG. 26 shows an exploded view of the operation detection assembly 42A.

  The operation detection assembly 42A is provided at a part of the keyboard membrane switch assembly 86A.

  The membrane switch assembly 86A has a structure in which a lower membrane sheet 170, a spacer sheet 171 and an upper membrane sheet 172 are overlapped.

  The lower membrane sheet 170 has a lower electrode 170-2 for pointing device in addition to the electrode 170-1 for key.

  The upper membrane sheet 172 includes a pointing device upper electrode 172-2 in addition to the key electrode 172-1.

  The spacer sheet 171 has an opening window 171-2 corresponding to the lower electrode 171-2 and the upper electrode 172-2 in addition to the opening 171-1 corresponding to the key electrode.

  A pressure-sensitive conductive rubber piece 63 is fitted in the opening window 171-2.

  As described above, the operation assembly 42A is provided integrally with the keyboard membrane switch assembly 86A.

  According to this operation detection assembly 42A, the belt-like sheet 64 in FIG. 2 is not necessary.

It is sectional drawing of the pointing device of 1st Example of this invention. FIG. 2 is an exploded perspective view of the pointing device of FIG. 1. FIG. 2 is a diagram illustrating a state where the pointing device of FIG. 1 is incorporated into a keyboard. FIG. 3 is a perspective view of a housing, a stick, a cap, and a packing as viewed from below in FIG. 2. It is a figure explaining attachment to the stick of a cap. It is a figure which shows the components which comprise the operation detection assembly in FIG. It is a figure which shows the operation detection assembly. FIG. 8 is an enlarged cross-sectional view taken along a vertical plane including a line VIII-VIII in FIG. 7. It is a figure which shows a state when it operates. It is a figure which shows the relationship between a pointing device and a control circuit. It is a figure explaining a detection signal and a mark movement control signal. It is a figure for demonstrating operation of a pointing device. It is a figure which shows the modification of the part which supports a stick. It is a figure which shows the 1st modification of a stick. It is a figure which shows the 2nd modification of a stick. It is a figure which shows the modification of packing. It is a figure which shows the modification of an operation detection part. It is a figure which shows the modification of a pressure sensitive conductive rubber piece. It is a figure which shows the pointing device of 2nd Example of this invention. It is a figure which shows the pointing device of 2nd Example of this invention. It is a figure which shows the ring-shaped spring member in FIG. It is a figure which shows the control circuit used for the pointing device of FIG. It is a figure which shows the relationship between operation of the stick of the pointing device of FIG.20 and FIG.22, and a detection signal. It is a figure which shows the pointing device of 4th Example of this invention. It is a figure explaining an initial pressure. It is a figure which shows the modification of an operation detection assembly. It is a figure which shows one example of the conventional pointing device. It is a figure which shows the structure of the fitting support part of an operation rod.

Explanation of symbols

30 fingertips 40, 40A, 40B, 40C pointing device 41 operation assembly (operation body)
42, 42A Operation detection assembly (operation detection body)
43 Support assembly (support)
50, 50A, 50B, 50C, 50D, 50E Stick 50-1 Disc part 50-2, 50D-2 Stick part 50-3 Groove 50-4 Top part 50-5 Concave part 50-6 Semispherical convex part 50B-6 Cylindrical convex portion 50C-6 Ring-shaped convex portion 50-7 Hole 50-8 Top plate portion 50-9 Ring-shaped convex portion 50-10 Axis 50A-11 Protruding portion 50D-12 Flat bottom surface 51 Cap 51-1 Tube Portion 51-2 Top plate 51-3 Hemispherical convex top 51-4 Wrinkle 60 Lower membrane sheet 60-1 Hole 60-2 X1 Lower electrode 60-3 X2 Lower electrode 60-4 Y1 Lower electrode 60- 5 Y2 lower electrode 60-6 to 60-9 wiring pattern 60-10 resist film 60-11 opening window 61 spacer 61-1 substantially cross-shaped opening window 61-2 to 61-5 window section 62 upper membrane sheet section 62- 1 hole 62-2 X1 upper electrode 62-3 X2 upper electrode 62-4 Y1 upper electrode 62-5 Y2 upper electrode 62-6, 62-7 Pattern 63, 63A Pressure-sensitive conductive rubber piece 63-1 Hole 63-2 to 63-5 Leg 63-6 Notch 63A-7 Center 63A-8 Line segment 64 Strip sheet 64-1 Branch strip sheet 66-1 X1 direction Operation detection unit 66-2 X2 direction operation detection unit 66-3 Y1 direction operation detection unit 66-4 Y2 direction operation detection unit 67-1 Flat space 68, 68A Clearance 70, 70A, 70B, 70C Substrate 70-1, 70- 2 Protrusion 70-3, 70B-3 Protrusion 70-4 Hemispherical top (receiving part)
70A-6 hole 70C-10 screw hole 71 packing 71-1 cylindrical part 71-2 top plate part 71-3 hole 72, 72A housing 72-1 leg part 72-4 operation detection assembly mounting part 72-5 lower end surface 72-6 Plane 72-7 Lower surface 72-8 Inner side surface 72-9 Disc portion accommodating portion 72-10 Protruding portion 72-11 Ceiling surface 72-12 Hole 72-13 Tapered ring portion 73 Annular gap 80 Keyboard 81 “ "G" key top 82 "H" key top 83 "B" key top 84 Space 85 Key top support board 86 Membrane switch assembly 87 Keyboard board 90 Computer device 91 Display screen 92 Mark 100-102 Screw 110, 110A Control circuit 111 CPU
112-1 to 112-4 Partial pressure resistance 120 Support point 121 Force point 122 Action point 130 Packing 131 Gap 140 Ring-shaped leaf spring member (preload applying means)
141, 142 arrow 143 differential circuit 144-146 subtractor 147, 148 arrow 160 initial pressure adjusting mechanism (initial pressure adjusting means)
161 Silicon rubber piece 162 Adjustment screw 170 Lower membrane sheet 170-1 Key electrode 170-2 Lower electrode for pointing device 171 Spacer sheet 171-1 Opening 171-2 Opening window 172 Upper membrane sheet 172-1 For key Electrode 172-2 Upper electrode for pointing device FS Operating force FP Pressing force FPi Initial pressure

Claims (8)

It consists of a disk part and a stick part that stands upright from the disk part and is acted upon by an operating force. The disk part has a ring-shaped ring-shaped convex part on the upper surface, A plurality of convex portions in the part, the stick portion has a protrusion at the center of the bottom surface, and an operating body tilted by operating force applied to the stick portion;
A support body that surrounds the disk portion, and has a hole portion in which a central projection portion of the bottom surface of the stick portion is fitted with an annular gap, and supports the operation body in a tiltable manner;
It is provided in a portion of the support that faces the lower surface of the disk portion, and when the operation body is operated, the operation body is operated by being pressed by a convex portion on the lower surface of the disk portion. An operation detection body for detecting
It is made of a material having elasticity, has a shape made of a cylindrical portion, and includes a packing that fills an annular gap between the central protrusion on the bottom surface of the stick portion and the hole of the support,
When the operating body is operated, the operating body is limited in displacement in the radial direction of the disk portion by the fitting of the central protrusion of the bottom surface of the stick portion and the hole of the support, and A pointing device characterized in that, while elastically deforming the packing, the ring-shaped convex portion is inclined at a point where the ring-shaped convex portion is in contact with the support. The pointing device according to claim 1.
The operating body has a shape having a recess at a plurality of equally divided positions around the disk portion,
The support has a convex part fitted with the concave part,
A pointing device characterized in that a concave portion of the operating body is fitted to a convex portion of the support body, and the operating body is configured to be restricted from turning about its axis. The pointing device according to claim 1.
The operation detection body includes a pressure-sensitive conductive rubber piece having a plurality of arms divided in the circumferential direction by notches, an upper electrode and a lower electrode opposed to the upper and lower sides of each arm, and the pressure-sensitive conductive rubber piece. A spacer having an opening window of a corresponding shape,
The pressure-sensitive conductive rubber piece is fitted and positioned in the opening window of the spacer,
A pointing device characterized in that when the operation body is operated, the upper electrode and the pressure-sensitive conductive rubber piece are pressed by the convex portion on the lower surface of the disc portion to output a detection signal. The pointing device according to claim 3.
The pointing device according to claim 1, wherein the operation detector has a configuration in which the spacer forms a gap between the upper electrode or the lower electrode and an upper surface or a lower surface of the arm portion of the pressure-sensitive conductive rubber piece. The pointing device according to claim 2.
The plurality of convex portions on the lower surface of the disk portion of the operating body are configured to be long convex portions extending over the entire length in the circumferential direction at a portion between the concave portions adjacent on the periphery of the disk portion. And pointing device. It consists of a disk part and a stick part that stands upright from the disk part and is acted upon by an operating force. The disk part has a plurality of convex parts on the periphery of the lower surface, and the stick part Has a hole in the center of the bottom surface, and an operating body that is tilted by operating force applied to the stick part;
A support that surrounds the disk and has a protrusion fitted into the hole at the center of the bottom surface of the stick with an annular gap, and supports the operating body in a tiltable manner;
It is provided in a portion of the support that faces the lower surface of the disk portion, and when the operation body is operated, the operation body is operated by being pressed by a convex portion on the lower surface of the disk portion. An operation detection body for detecting
It is made of a material having elasticity, has a shape made of a cylindrical portion, and consists of a packing that fills an annular gap between the central hole on the bottom surface of the stick portion and the protruding portion of the support,
When operating the operating body, the operating body is limited in displacement in the radial direction of the disk portion by fitting the center hole of the bottom surface of the stick portion and the protrusion of the support, and It is a structure that inclines while elastically deforming the packing,
The operation detection body includes a pressure-sensitive conductive rubber piece having a plurality of arms divided in the circumferential direction by notches, an upper electrode and a lower electrode opposed to the upper and lower sides of each arm, and the pressure-sensitive conductive rubber piece. A spacer having an opening window of a corresponding shape,
The pressure-sensitive conductive rubber piece is fitted and positioned in the opening window of the spacer,
When the operation body is operated, the upper electrode and the pressure-sensitive conductive rubber piece are pressed by the convex portion on the lower surface of the disk portion, and a detection signal is output.
A preload applying means for applying a preload in which a plurality of convex portions on the lower surface of the disk portion of the operating body press the pressure sensitive conductive rubber piece;
A pointing device characterized by further comprising a differential circuit for taking a differential of the detection signal and outputting the output as a detection signal. It consists of a disk part and a stick part that stands upright from the disk part and is acted upon by an operating force. The disk part has a plurality of convex parts on the periphery of the lower surface, and the stick part Has a protrusion at the center of the bottom surface, and an operating body tilted by operating force applied to the stick part;
A support body that surrounds the disk portion, and has a hole portion in which a central projection portion of the bottom surface of the stick portion is fitted with an annular gap, and supports the operation body in a tiltable manner;
It is provided in a portion of the support that faces the lower surface of the disk portion, and when the operation body is operated, the operation body is operated by being pressed by a convex portion on the lower surface of the disk portion. An operation detection body for detecting
It is made of a material having elasticity, has a shape made of a cylindrical portion, and consists of a packing filling an annular gap between the central protrusion on the bottom of the stick portion and the hole of the support,
When operating the operating body, the operating body, the fitting of the hole portion of the central protrusion of stearyl Ikku portion bottom support is limited displacement in the radial direction of the disc portion, And it is composition which inclines while elastically deforming the above-mentioned packing,
The operation detection body includes a pressure-sensitive conductive rubber piece having a plurality of arms divided in the circumferential direction by notches, an upper electrode and a lower electrode opposed to the upper and lower sides of each arm, and the pressure-sensitive conductive rubber piece. A spacer having an opening window of a corresponding shape,
The pressure-sensitive conductive rubber piece is fitted and positioned in the opening window of the spacer,
When the operation body is operated, the upper electrode and the pressure-sensitive conductive rubber piece are pressed by the convex portion on the lower surface of the disk portion, and a detection signal is output.
A preload applying means for applying a preload in which a plurality of convex portions on the lower surface of the disk portion of the operating body press the pressure sensitive conductive rubber piece;
A pointing device characterized by further comprising a differential circuit for taking a differential of the detection signal and outputting the output as a detection signal. The pointing device according to claim 3.
A plurality of convex portions on the lower surface of the disk portion of the operating body adjusts a preload for pressing the pressure-sensitive conductive rubber piece, and is a pressure applied to the pressure-sensitive conductive rubber piece to output a detection signal. A pointing device characterized by further comprising an initial pressure adjusting means for adjusting the pressure.

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