JPS62128315A - Book type tablet input unit - Google Patents

Abstract

PURPOSE:To clearly detect the state of a movable sheet, and not to increase the manhour of an assembling or an adjustment by arranging a conduction element and a resistance element on a circumference centering a turning shaft, and connecting either of the two elements to an adjacent member according to the turning of the sheet. CONSTITUTION:Each of rotors 24-27 turns by the page-turning of each of movable sheets 6-9, and the adjacent member, that is, the member connected to other rotors 24-27, an interior side supporting body 22, or a stator 32, is switched from a conductor 59 to a resistor 60. And assuming that the resistance of the resistor 60 is, for example, as (r), a resistance RX is almost '0', but, when each of the movable sheets 6-9 is page-turned to a left tablet part 2 in order starting from the above state, the resistance RX changes in order as r 2r 3r 4r. At such a time, by supplying a constant current I with a constant current circuit consisting of a R1, a R2, and a Tr, a voltage V at a connecting conductor 45, that is, a terminal rises by a prescribed value according to the page-turning. And by supplying its output voltage V to an A/D converter 91, a digital value PD which represents the state of the page-burning at that time can be obtained.

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a book-type tablet input device.

The details relate to improvements to the page detection method.

``Prior Art'' In a book-type tablet input device, page information obtained by a page detection means and coordinate information obtained by a mark detection means are usually combined to specify a definition item specified by an input pen or the like. Various methods have been proposed for this page detection, such as one using a microswitch (Japanese Patent Publication No. 40-24506) and one using a reflective photoelectric switch (Japanese Patent Publication No. 57-1008).

[Problems to be Solved by the Invention J] However, in many of these conventional systems, it is difficult to position the sensor and adjust the sensitivity, and there are few that have a simple structure and reliable operation.

"Means for Solving the Problem" The present invention was made to solve the problem of slanting, and includes a tablet, a movable sheet placed on the tablet, and a
A rotator in which a conductive element and a resistive element are arranged on a circumference centered on a rotation axis, and one of the two elements is connected to an adjacent member according to the rotation of the /-t, and each of these elements A page that identifies the page being developed at the time based on the resistance value due to the series connection of! Equipped with means of guarding. .

i 1'rJr4 j In other words, in the present invention, when the rotating element rotates in the 2-chastity manner, the resistance value due to the series connection of the conductive element and the resistive element changes stepwise and clearly, and the page specifying means To accurately send page information according to the magnitude of resistance value.

``Example'' The details of the present invention will be explained below based on the illustrated example. 1st
The figure shows a plan view of the embodiment. In the diagram, 1 is the device body, 2
and 6 are the left and right tablet parts arranged on the top surface thereof, and 4 and 5 are the left and right fixing parts 7 affixed thereon.
-), 6 to 9 are first to fourth movable notes, and 10 is an input pen that specifies each definition area 11 on each of these 7-tots 4 to 9.

21 is a support ring made of a metal round bar with good conductivity.

Reference numerals 22 and 25 denote supports on the back side and on the hand ijJ side, which support the back end and the front end of the support ring 21. 24-27 are the first
~Fourth rotators 28 to 31 are the first to fourth rotators and are rotatably supported by the support frame 21, respectively, and the first rotator 24 and the first rotor 28 are the first to fourth rotators. The movable/-toro is similarly fixed to the second to fourth rotators 25 to 27 and the second to fourth idlers 21, and cooperates with the back support 22. Each rotator 24 to 27 is lightly clamped.

Details of the back support 22 are shown in FIG. In the figure, 41 is a support housing made of an insulating material. 42 is a circular hole with a bottom, into which the inner end of the support ring 21 is inserted and fixed with adhesive.

Reference numeral 46 fixes the back support body 22 to the housing 44 of the tablet 1 with a set screw. Reference numeral 45 denotes a connecting conductor, which is fixed to the back support 41 by special molding.

Reference numeral 46 denotes a slider made of a conductor, and is slidably disposed in a circular hole 47 bored so as to follow the connecting conductor 45.

Reference numeral 48 denotes a spring made of a conductor that urges the slider 46 outward and electrically connects it to the connecting conductor 45.

FIG. 5 shows details of the first to fourth rotators 24 to 27.

These should be arranged and supported in the same shape/-Toro~9
In this explanation and in FIG. 3, the first rotating element 24 is used as a representative. In the figure, reference numeral 51 denotes a rotor coupling made of an insulating material. 52 is a holding member.

Pedestal part 53. It cooperates with the stopper 54 to clamp the first movable tab 55. 56 to 58 are circular through holes, through hole 5
A support ring 21 is inserted through the support ring 6, and the first rotator 24 rotates about this. A cylindrical conductor 59 is fixed to the through hole 57 so that its rear opening surface and its end surface coincide with each other.
A spring 4 is placed on the front side in the same way as the back support 22.
8 and a slidable slider 46 are arranged.

The slider 46 is biased outwardly by 719,774 days and is electrically connected to the cylindrical conductor 59. A cylindrical resistor 60° spring 48 and a slider 46 are arranged in the through hole 58 in the same manner as the cylindrical conductor 59 and the like in the through hole 57.

FIG. 4 shows details of the stator 52. The stator 52 is a cylindrical conductor with a circular through hole 71 and a screw hole 72 formed therein, and the support ring 21 is inserted through the through hole 71 and fixed with a screw 73.

FIG. 5 shows details of the first to fourth floaters 28 to 51. These rotators 28 to 51 also have the same structure as the first to fourth rotators 24 to 27, except for the arrangement and the fact that no supports are incorporated. Therefore, in FIG. 5, the first floater 24 is shown and its explanation will be omitted.

FIG. 6 shows details of the front support 25. This front side support body 25 is made of a conductor, and the front end of the support ring 21 is inserted into a circular bottomed hole 81 bored in the center and fixed with solder. Also, each stopper 82 connects this support 25 to the housing 4.
4 and electrically connect them (casing ground).

Therefore, in the state shown in Fig. 1, the connection conductor 45→spring/
48 → slider 46 → each cylindrical conductor 59 of the first to fourth rotators 24 to 27. Each spring 48. One circuit C is formed between each slider 46→stator 52→support rod 21→front support 23→casing 44. And each rotating element 24~
27 is rotated by the chastity of each movable/toro~9, and the adjacent members (other rotators 24~27.・back side support body 22
Alternatively, the element connected to the stator 32 (located on the right side of the support rod 21) is switched from the four elements 59 to the resistor element 60.

As a result, 1For example, if the resistance value of the resistor 60 is r,
In the state shown in FIG. 1, the resistance value RX of the circuit C is approximately 0, but when the movable tablets 6 to 9 are sequentially turned to the left tablet section 2 from this state, the resistance value RX is r→3
It changes in order from r to 4r. Therefore, if a constant current ■ is supplied to this circuit C by a constant current circuit consisting of R1, R2, and Tr as shown in FIG. Rise. If this output voltage V is supplied to the analog-to-digital converter 91, a dental value PD indicating the page turning state at that time is obtained.

In this embodiment, the rotators 24 to 27 are movable/-Toro~9
However, it is sufficient that the rotators 24 to 27 are linked to the movable/toro to 9, and there is no need for them to serve as support members for the movable seats 6 to 9.

``Effect'': Book-type tablet input device that requires no man-hours 5
−; , the position is obtained.

Engraving of the details table (no changes to the contents)

[Brief explanation of drawings]

Each drawing depicts an embodiment of the invention. FIG. 1 is a plan view. Figure 2 shows details of the upper catch. A) is a front view, (B)
is a view taken along the line 2B-2B, and (C) is a view taken along the line 2C-20. Figure 3 shows details of the rotator. A) is a front view + (
H) is a 3B-3I3 arrow view. (C) is a 30-30 arrow view, and (D) is a side view. Figure 4 shows details of the stator, A) is a side view, (B) is 4
It is a view taken along arrow B-4B. Figure 5 shows the details of the floater,
(A) is a front view, and (B) is a plan view. (C) is a right side view. FIG. 6 shows details of the lower seat, A, ) is a front view, (B) is a plan view, and (C) is a right side view. FIG. 7 shows the resistance value detection circuit of circuit C. 2.3...tablet, 6-9...movable notebook. 24-27... Rotator, 91.几1.几2゜Tr
...Page identification means.

Claims (1)

[Claims] A tablet, a movable sheet placed on the tablet, a conductive element and a resistive element arranged on a circumference around a rotation axis, and as the sheet rotates, one of the two elements comes adjacent to the other. A book-type tablet input device characterized by comprising a rotator connected to a member and a page specifying means for specifying a page being developed at a time based on a resistance value obtained by connecting each of these elements in series.