JPH087652B2 - Uneven code plate - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial field of application The present invention is a cord plate, which has a long life of a conversion switch that is turned on / off by an uneven pattern of the cord plate and an accuracy of the switch change. The present invention relates to an intended concavo-convex code plate.

(B) Conventional Technique FIG. 9 is a front view showing a conventional concavo-convex code plate.

The concavo-convex code plate 5 is provided with a concavo-convex pattern 54 including a thick portion 52 and a thin portion 53 on the lower surface of a disc 51. The concavo-convex pattern 54 is set to, for example, a 4-bit configuration, and a plurality of independent (4 K ₁ ,
Corresponding to the conversion switches of K ₂ , K ₃ , and K ₄ ), they are movably (rotatably) arranged (not shown).

When the uneven code plate moves over the four conversion switches, the conversion switches corresponding to the thick portion 52 of the uneven pattern
Turn on and turn off the conversion switch corresponding to the thin portion 53. That is, each conversion switch is turned on and off based on the uneven pattern 54 by the stepwise movement of the uneven code plate. As a result, 16 types of code designation are executed.

(C) Problems to be Solved by the Invention FIG. 8 is an explanatory diagram showing a concavo-convex pattern array of a conventional concavo-convex code plate.

The concavo-convex pattern has a 4-bit structure and 4-bit "0".
To “F (16)” are arranged in a permutation.
That is, each of bit 1, bit 2, bit 3, and bit 4 is arranged in the order starting from "1" and ending with "F", and set in 16 steps.

For this reason, the conversion switch (K ₁ , K ₂ ,
K _3, with respect to K _4), for example, when rotated once, after completing the operation that is 16 stages, ON · OFF of each conversion switch
The number of conversions becomes extremely unbalanced. For example, bit 1, that is, the number of ON / OFF switching of switch K ₁ is 15,
Bit 2 (switch K ₂ ) 7 times, bit 3 (switch K ₂ )
It is three times for K ₃ ) and once for bit 4 (switch K ₄ ). In this way, an extreme deviation occurs in the number of conversions of each conversion switch, and the switching operation concentrates only on the switch K ₁ . Therefore, there is a disadvantage that the life of the switch is affected by the switch (switch K ₁ ) having a large amount of switching, and as a result, the life of the switch is shortened.

Further, when the uneven code plate is rotated stepwise, for example, when it is moved to the intermediate position from the stage shown in FIG. 8, _two of the switches K ₁ and K ₂
While switching to ON / OFF, when moving to an intermediate position between the step and, all switches (K ₁ , K ₂ , K ₃ , K ₄ )
ON / OFF switching. That is, when the uneven code plate is rotated stepwise, a plurality of switches are switched at the same time. By the way, when moving to the intermediate position from the stage, all the switches (K ₁ , K ₂ , K ₃ , K ₄ ) are turned on.
・ If OFF switching works at the same time, there is no problem. But,
For example, if the turning operation of the concave-convex code plate is stopped at an intermediate stage, there is a disadvantage that a completely unskilled code is designated.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems, to provide a concavo-convex cord that has a small number of conversion switches and has a long switch life and achieves accurate switch switching.

(D) Means and Actions for Solving Problems In order to achieve this object, the uneven code plate of the present invention has the following configuration.

The uneven code plate is an uneven code plate that is provided so as to be movable with respect to a plurality of independent conversion switches that convert a mechanical physical quantity into a digital quantity, and that turns the conversion switches ON and OFF when moving. The code plate is formed into a concavo-convex pattern of at least 4 bits or more, and the concavo-convex pattern is arrayed at the time when only one of the conversion switches is switched at every stepwise movement and all the bit movements are completed. The number of switching of each conversion switch is set to be substantially equal.

In the code plate having such a configuration, for example, the concavo-convex pattern is configured to have 4 bits, and the four conversion switches are independently and correspondingly arranged. And, the arrangement order of the concavo-convex pattern is from "0" to "F (1
Instead of arranging according to the regular permutation leading to "6)", each rank from "0" to "F (16)" is displaced. That is, when the uneven code plate is moved stepwise, four conversion switches K ₁ , K ₂ ,
Only one of K ₃ and K ₄ switches,
Do not switch the other three switches, and when the uneven code plate finishes all 16 steps of operation, the number of four conversion switches (K ₁ , K ₂ , K ₃ , K ₄ ) changed. , The rank array is set to be almost even.

Therefore, only one of the four switches is constantly switched when the uneven code plate is moved stepwise, that is, each time it is moved one step. As a result, unlike the conventional concavo-convex pattern, there is no possibility that a plurality of switches will be switched at the same time in every stepwise movement, and even if the concavo-convex code plate is stopped in the middle of the stepwise movement, an incorrect step is generated. There is no risk of specifying the code.

Further, when the uneven code plate has finished moving in 16 steps, the number of the four conversion switches K ₁ , K ₂ , K ₃ , and K ₄ is almost equal (for example, the four switches are 3 to 5 respectively). It switches in the range of times). Therefore, as in the prior art, switching is concentrated only on a single switch, and disadvantages such as the switch life being limited by a switch having a large number of switching cannot be eliminated, and a long life of the switch can be achieved. .

(E) Embodiment FIG. 7 is an exploded perspective view showing a color comparison / determination device using the uneven code plate according to the present invention.

This color comparison and determination device is a case main body 2 having an electronic circuit unit such as a CPU (central processing unit) inside, and is fitted and arranged in the case main body 2, and has a color sample part 3 on the front surface and an uneven shape on the back surface. It is composed of a wheel 1a having a cord portion (corrugated cord plate) 1 and a cover body 4 fitted to the case body 2. The case main body 2 is provided with an insertion arrangement portion 21 for inserting and removing the color test paper portion of the test stick, and a protrusion display portion 22 for displaying the color comparison comparison determination result. The wheel 1a is rotatably fitted and arranged on the protruding display portion 22 of the case body 2, and has a plurality of step colors on the upper surface ...
Comparative color swatches 3 with circles arranged in a circle
However, it is set so as to project from the window hole 41 of the cover body 4. In addition, the case body 2 is provided with a plurality of conversion results corresponding to the wheel 1a (corrugated code plate 1) for converting the visual judgment result of the color comparison color sample part 3 and the color test paper part into an electric signal. The conversion switches K ₁ , K ₂ , K ₃ , and K ₄ are independently arranged. The uneven code plate 1 integrally arranged on the lower surface of the wheel 1a has an uneven pattern composed of a thick portion 11 and a thin portion 12 corresponding to the graded color of the comparative color sample portion 3 as shown in FIG. It consists of 13. The concavo-convex pattern 13 turns ON / OFF the conversion switches K ₁ , K ₂ , K ₃ , and K ₄ .

FIG. 2 is a front view showing a concrete example of the concavo-convex pattern 13 according to the present invention.

The concavo-convex pattern 13 is configured by combining the thick portion 11 and the thin portion 12. The concavo-convex pattern 13 of the embodiment has a 4-bit structure, and the pressure-applied portion 11 and the thin-walled portion are set in correspondence with each step color of the comparative color sample portion 3 ,. That is, at the position (angle) at which the uneven pattern 13 is determined corresponding to each step color, the conversion switch K ₁ ,
Operate K ₂ , K ₃ , and K ₄ . For example, when the center of each step color and the boundary between two adjacent colors come to the center of the insertion placement portion 21,
The relationship between the concavo-convex pattern 13 and the conversion switches K ₁ , K ₂ , K ₃ , K ₄ is set so that the information (significance) of the color is converted into a 4-bit signal. For example, when the uneven code plate 1 is rotated stepwise, one of the switches K ₁ , K ₂ , K ₃ and K ₄ corresponding to the pressure-applying portion 11 of the uneven pattern 13 is pressed downward. The head is brought into contact with a circuit board (not shown), and the result of visual comparison and judgment between the color test paper and the comparative color sample section (step color) 3 is converted into an electric signal. That is, when the concavo-convex code plate 1 is rotated and the identity between the color test paper portion and the step color of any of the step colors ,,,,,, is visually found, for example, the start key is pressed. At that time, the key input code is designated by the concave / convex pattern 13, and the output is read. Then, the meaning of graded color, for example, the urine sugar value is displayed on the display unit via the electronic circuit (CPU).

The feature of the present invention is that the uneven pattern of the uneven code plate 1 is used.
Instead of arranging the 4-bit structure of 13 according to a regular permutation of 0 to F (16), it is possible to use "0" to "F (16)".
The point is that the permutations leading to are displaced and arranged. That is, the concave / convex pattern 13 has four conversion switches K ₁ , K ₂ , when the stepped movement of the concave / convex code plate 1 is performed.
When only one switch of K ₃ and K ₄ is switched ON / OFF, and when the uneven code plate 1 completes all 16 steps of operation, four conversion switches K ₁ , K ₂ , K _The number of switches of ₃ and K ₄ is set to a rank arrangement so that they are almost equal.

FIG. 1 is an explanatory diagram showing a 4-bit arrangement state of the concavo-convex pattern 13 of the embodiment. Corresponding to the bit arrangement of FIG. 1, the concavo-convex pattern of FIG. 2 (thick portion 11, thin portion
12) 13 are composed. In this 4-bit array,
The array in the order of “0” to “F (16)” does not follow a regular order starting from “0” and ending with “F”, and is an at random permutation. That is, each permutation is "0"
"2""6""7""5""4""C""8""A"
It is set to "B""3""1""9""D""F""E".

With the arrangement of the concavo-convex pattern 13 as described above, when the concavo-convex code plate 1 is moved in each of 16 stages, that is, when it is moved from a step color to an intermediate color,
Only bit 2 (switch K ₂ ) switches ON / OFF, and when moving from the intermediate color to the step color, only bit 3 (switch K ₃ ) switches ON / OFF. In this way, when the uneven code plate 1 is moved, only one of the four changeover switches K ₁ , K ₂ , K ₃ , K ₄ is always changed over at each stage, and a plurality of switches are always changed over. It does not switch at the same time. Therefore, conventional code plate (concavo-convex pattern)
In the case of, all _four conversion switches K ₁ , K ₂ , K ₃ , K ₄ are switched at the same time when shifting from the step color to the intermediate color as shown in FIG. In the figure), even when shifting from the step color to the intermediate color, only bit 3 (switch K ₃ ) is turned ON / OFF, and the other switches K ₁ , K ₂ , K ₄ are turned ON / OFF. Do not switch. Therefore, when the uneven code plate 1 is moved stepwise, even if it is stopped at the intermediate position of each step color, there is no fear of specifying an unnatural step code as in the conventional case. It In addition, when the uneven code plate 1 is moved in all 16 steps, that is, in the state of being rotated by 360 degrees, in the uneven pattern 13 shown in FIG.
The number of ON / OFF switching in (switch K ₁ ) is “4 times”, “5 times” in bit 2 (switch K ₂ ), “3 times” in bit 3 (switch K ₃ ), bit 4 ( switch
In K ₄ ), it is “3 times”. That is, “3 to 5 times
In the range of “turns”, the number of switches of each switch (K ₁ , K ₂ , K ₃ , K ₄ ) is almost equal. On the other hand, in the conventional concavo-convex pattern shown in FIG. 8, the number of switching of bit 1 (switch K ₁ ) is “15 times”, that of bit 2 (switch K ₂ ) is “7 times”, and that of bit 3 (switch K ₃ ) is "3 times", and bit 4 (switch K ₄₎ is "once", switched to bit 1 (switch K ₁₎ occurs intensively. In addition, there is a large deviation in the number of switches between the switches as a whole. However, in the concavo-convex pattern 13 of this embodiment, the number of switchings does not concentrate on a single switch, the number of switchings of the four switches is substantially equalized, and the number of switchings of each switch as a whole is conventional. Extremely less than Therefore, the life of the switch can be extended.

3 to 5 show another embodiment showing the 4-bit array structure of the concavo-convex pattern 13. Also in FIGS. 3, 4, and 5, as in the case of FIG. 1 (first embodiment), when the uneven code plate 1 is moved stepwise, four switches K are provided at each step. Only one switch of ₁ , K ₂ , K ₃ and K ₄ is switched ON / OFF, and the number of switches of each switch at the time when the stepwise movement of the uneven code plate 1 is completed for all 16 steps, It is set to be even in the range of “3 to 5 times”.

Although the embodiment of FIG. 1 has been devised experimentally, the bit array of one concavo-convex pattern 13 is devised, and the columns of each bit are exchanged with each other, and the same effect is obtained. It is possible to set 16 different concave / convex patterns 13, and when the permutations of these 16 different concave / convex patterns are set in reverse order, 32 different concave / convex patterns 13 can be obtained. The embodiments shown in FIGS. 3 to 5 are adapted from the experimentally obtained embodiment shown in FIG.

FIG. 6 is an explanatory diagram showing an example in which the concavo-convex pattern 13 has 5 bits (32 levels).

In this embodiment, the 16-step bit arrangement shown in FIG. 4 and the 16-step bit arrangement shown in FIG. 3 are combined. In other words, after the bit arrangement of FIG. 4 is reversed, the bit arrangement of FIG. 3 is added, and in the reverse order of the bit arrangement of FIG. The bit arrangement of FIG. 3 is set so that 5 bits, that is, 32 types can be specified by adding "0" to each of the 16 stages.

Also in the case of this embodiment, FIG. 1 (first embodiment)
And as in the case of FIGS. 3 to 5 (another embodiment),
Each time the uneven code plate 1 moves to each stage, 5
Only one of the two switches (K ₁ , K ₂ , K ₃ , K ₄ , K ₅ ) switches ON / OFF, and the other switches do not switch. Further, when the uneven code plate 1 is moved to all 32 stages, the number of switching of the bit 1 (switch K ₁ ) is “9 times” and that of the bit 2 (switch K ₂ ) is “7”.
Times, bit 3 (switch K ₃ ) "8 times", bit 4
(Switch K ₄ ) "6 times", bit 5 (Switch K ₅ )
Then it is "once". Therefore, when the conventional concavo-convex pattern array shown in FIG. 8 is configured with 5 bits, for example, the number of switching of bit 1 (switch K ₁ ) is “30 times”.
However, the life of the switch can be extended, which is extremely small.

In the embodiment, the concavo-convex code plate 1 is set in the shape of a disc and is rotated with respect to the corresponding conversion switch on the track. However, the present invention is not limited to this, and for example, the concavo-convex pattern may be used. The code plate 1 may be set in the shape of a rectangular flat plate, and may be set to reciprocate linearly with respect to the conversion switch.

(F) Effect of the Invention In the present invention, as described above, the uneven code plate is formed into an uneven pattern of at least 4 bits or more, and the uneven pattern is arranged in one of the conversion switches for each stepwise movement. When only the switches are changed and all the bit movements are completed, the number of changes of each conversion switch is
Since the settings are made to be almost equal, when the uneven code plate moves to each stage, only one of the multiple conversion switches is switched ON / OFF and the other switches are switched at each stage. Absent. Therefore, even if the concave-convex code plate is stopped at a midway position in each stage, there is no possibility that the key input will be indiscriminate at all.

Also, when the uneven code plate finishes moving in all steps, the number of switches of each switch becomes almost equal, eliminating disadvantages such as switching concentrated on only a single switch, and extending the life of the switch. It has the excellent effect of achieving the object of the invention.

[Brief description of drawings]

FIG. 1 is an explanatory view showing the arrangement state of the concavo-convex patterns of the concavo-convex code plate of the embodiment, FIG. 2 is a front view showing the concavo-convex code plate of the embodiment, and FIG. An explanatory view showing an example, FIG. 4 is an explanatory view showing still another example of the arrangement state of the concavo-convex pattern, FIG. 5 is an explanatory view showing another example of the arrangement state of the concavo-convex pattern, and FIG. FIG. 7 is an explanatory view showing a state in which the arrangement of the concavo-convex pattern is made into 5 bits, FIG. 7 is an exploded perspective view showing a coloration comparing and judging device using the concavo-convex code plate of the embodiment, and FIG. 8 is a conventional concavo-convex pattern. And FIG. 9 is a front view showing a conventional concavo-convex code plate. 1: irregular code plate, 13: convex _{pattern, K 1 · K 2 · K} 3 · K 4: conversion switch.

Claims (1)

[Claims] 1. A concavo-convex code plate that is movably provided for a plurality of independent conversion switches that convert a mechanical physical quantity into a digital quantity and that turns the conversion switches on and off during movement. The code plate is configured in a concavo-convex pattern of at least 4 bits or more, and the concavo-convex pattern is arranged in such a manner that only one of the conversion switches is switched at every stepwise movement and all bit movements are completed. A concavo-convex code plate set so that the number of conversion switches is approximately equal.