JPH05312679A - Key tester - Google Patents

Abstract

PURPOSE:To easily test a keying machine in a short time no properly evaluate the keying machine with respect to a tester for keying machines having keys such as a light pen and a key switch. CONSTITUTION:A key tester comprises an arm 14 provided so that it can reciprocate, a driver 16 for reciprocating the arm 14, stroke adjusting coupling holes 33a, b for adjusting reciprocating strokes of the arm 14 and a holding member 15 attached to the tip of the arm 14 for attaching an object WK to be tested or a testing jig JG. It further comprises a base 21 placed below the holding member 15 for attaching the testing jig JG or the object WK, a drive control part 51 for controlling the driver 16 so that moving speed of the arm 14 is variable and a counter 52 for counting the number of reciprocating motions of the arm 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keying device testing apparatus having a keying unit such as a light pen and a key switch.

With the spread of computers, the types and production quantities of keystroke devices have increased, and the usage conditions of keystroke devices have also diversified. Therefore, various tests or shipping tests for the development and evaluation of keystroke devices are required. Automation is desired.

[0003]

2. Description of the Related Art Conventionally, a keying device is mainly tested by an operator. For example, in order to evaluate the durability of a prototype light pen, the light pen is turned on and off by the operator's hand according to the actual usage state, input is repeated many times, and a certain number of times is input. At the time of input, the contact resistance value of the input contact was measured and the contact surface was observed.

It has also been practiced to repeat keystrokes using a general-purpose robot (Japanese Utility Model Laid-Open No. 61-107035).

[0005]

However, the conventional test method manually performed by the operator requires a lot of time and labor for the test, and moreover, there are individual differences and variations in the test method, so that accurate evaluation can be performed. It was difficult.

Further, in the test method using the general-purpose robot, it takes a long time to teach the general-purpose robot and the like, and the operation speed is slow, so that a test requiring a large number of times such as a durability test requires a long time. was there.

In view of the above problems, it is an object of the present invention to make it possible to easily test a keystroke device in a short period of time and perform an accurate evaluation of the keystroke device.

[0008]

In order to solve the above-mentioned problems, an apparatus according to the invention of claim 1 is, as shown in FIG.
Arm 14 provided so as to be capable of reciprocating, and said arm 1
Drive source 16 for reciprocating 4 and stroke adjusting unit 3 for adjusting the reciprocating stroke of the arm 14.
3a, b and attached to the tip of the arm 14,
A gripping member 15 for mounting the DUT WK or the test jig JG, a pedestal 21 arranged below the gripping member 15 for mounting the test jig JG or the test WK, and the arm. A drive control unit 51 that controls the drive source 16 so as to change the moving speed of the arm 15 and a number counter 52 that counts the number of reciprocating movements of the arm 14 are configured.

In the apparatus according to the second aspect of the present invention, the gripping member 15 is provided with a spring member 24a for applying a pressing force to the DUT WK mounted on the pedestal 21.
A pressing jig 24 provided with a pressing force instruction member 24b for instructing a pressing force by the spring member 24a is attached and configured.

In the apparatus according to the third aspect of the present invention, the pedestal 21 is rotatably provided to adjust the angular position of the arm 14 with respect to the moving direction.

[0011]

The driving source 16 causes the arm 14 to reciprocate, and the test object WK or the test jig JG held at the tip of the arm 14 reciprocates. For example, when the light pen WK1 is attached as the DUT WK, the reciprocating movement of the light pen WK1 causes the contact point to hit the pedestal 21 to turn on and off,
Its operating condition is tested. At that time, light pen WK
The pedestal 21 so that it is in a state close to the actually used state of No. 1
The angular position of is adjusted.

The number of reciprocating movements of the test object WK is counted by the number counter 52, and the movement speed is determined by the drive control unit 5.
1, and the stroke of the reciprocating movement is adjusted by the stroke adjusting unit 3 such as by adjusting the length of the crank.
3a, b.

By attaching the pressing jig 24 to the arm 14, the pressing force on the keys of the keyboard WK2, for example, is adjusted.

[0014]

1 is a front view of a test apparatus 1 according to the present invention. The test apparatus 1 includes a pedestal 11, a vertical axis 12 attached to the pedestal 11, a slider 13 slidably provided along the vertical axis 12, a T groove 31 provided on the slider 13, and a height position by a bolt 32. Adjustably attached arm 14, gripping member 1 attached to the tip of arm 14
5, the motor 16 mounted on the mount 11, the motor 16
Crank plate 17 and connecting pin 1 driven by rotation
8, a connecting arm 19, a connecting pin 20, a receiving stand 21, a supporting stand 22 for rotatably supporting the receiving stand 21, a control device 25, and the like.

The gripping member 15 is for mounting the object to be tested WK or the test jig JG, and is fixed by the thumbscrew 35 while sandwiching them. Crank plate 1
7 includes a plurality of connecting holes 3 for selectively inserting the connecting pins 18 described above at different distances from the center position.
3a and 3b are provided. Further, a plurality of connection holes 34a to 34c for selectively inserting the above-mentioned connection pin 20 are provided on the side surface of the slider 13.

Therefore, when the motor 16 rotates, its rotational motion is converted into a reciprocating linear motion by the crank plate 17, the connecting pin 18, the connecting arm 19, and the connecting pin 20, and the slider 13 and the arm 14 move in the vertical direction (arrow M1).
Direction).

The reciprocating stroke of the arm 14 is adjusted by selecting the connecting holes 33a and 33b into which the connecting pin 18 is inserted, and the height position of the arm 14 is set to the connecting pin 2.
Selecting connection holes 34a-c into which 0 is inserted, and T
It is adjusted by changing the mounting position with respect to the groove 31.

The pedestal 21 can be adjusted by the support pedestal 22 in an angular position within a range of 0 to 80 degrees with respect to the moving direction of the test object WK (direction of arrow M1). By adjusting the angular position of the cradle 21, for example, the light pen W
In the operation test of K1 or the like, it can be brought closer to the actual usage state. Although the angular position is manually adjusted in this embodiment, it may be automatically adjusted by rotating a motor or the like according to a command from the control device 25.

The control device 25 includes a drive control unit 51 for variably controlling the rotation speed of the motor 16, and a counter 52 for counting the number of rotations of the motor 16, that is, the number of reciprocating movements of the arm 14 (this is equal to the number of keystrokes). , Contact monitoring device 53, alarm lamp 5 that lights up when an abnormality occurs
4 and so on.

In the drive control unit 51, for example, the motor 16 is
In the case of a C motor, the drive frequency is variable, and the motor 16 is driven in the range of 80 to 200 RPM. Further, the drive control unit 51 stops the rotation of the motor 16 and ends the test when a test end signal S1 described later is input. When the intermediate stop signal S2 is input, the rotation of the motor 16 is temporarily stopped to stop the contact monitoring device 53.
The resistance measurement is performed and the count value is collated, and if an abnormal signal is input, the test ends.

The number counter 52 is reset to zero at the start of the test and numerically displays the count value. Also,
It is possible to preset the number of times of test setting and the number of times of intermediate setting, and in that case, when the number of times of setting of test is reached, the test end signal S1 is given, and when the number of times of intermediate setting is reached, the intermediate stop signal S2 is given respectively Output to the drive control unit 51.

The contact monitoring device 53 is a resistance measuring device 6 for measuring the contact resistance value of the input contact of the light pen WK1 or the like.
1 and a contact counter 62 that counts the number of times the input contact is turned on and off. The resistance measuring device 61 displays the measured value of the resistance and outputs an abnormal signal S3 to the drive control unit 51 when the measured value exceeds the set value.

Next, a procedure for performing an operation test of the light pen WK1 by the above-described test apparatus 1 will be described. FIG. 4 is a flowchart showing an example of a light pen operation test.

First, the light pen WK1 is attached to the grip member 15, and the height position thereof is adjusted so that the contact of the tip of the arm 14 hits the pedestal 21 to be turned on and off by the reciprocating movement of the arm 14 (step # 11). The angular position of 21 is adjusted to 0 degree, for example (step # 1
2).

After resetting the frequency counter 52 (step # 13) and setting the keystroke speed (step # 14),
It is activated (step # 15). As a result, the light pen WK1 reciprocates in the vertical direction at the set speed, the contact is repeatedly turned on and off, and the test is started.
Starts counting.

If the light pen WK1 is damaged (step # 16), or if the number of tests reaches the set number (step # 17), the test ends. When the number of tests reaches the intermediate set number, contact resistance measurement is performed (steps # 18, 19).

For example, when performing an operation test 100,000 times, the number of test settings is set to 100,000 and the number of intermediate settings is set to 0, 5,000, 10,000, 20,000, etc. With this setting, the test end signal S1 or the intermediate stop signal S2 is output when the number of tests is reached.

If the measured resistance value is within the setting range (YES in step # 20), the process returns to step # 16 and the subsequent steps are repeated. If it is out of the setting range (NO in step # 20). ), End the test.

Therefore, by performing the above-mentioned test using the test apparatus 1, the standardized test can be easily performed with a small amount of time and labor, and the accurate results of the light pen WK1 can be obtained from the obtained test results. An evaluation can be done.

Further, by adjusting the rotation speed of the motor 16, the key tapping speed can be arbitrarily set, and the test can be conducted at a high key tapping speed in a short period of time. Next, another test by the test apparatus 1 will be described.

Although not shown in the figure, in the test shown in FIG. 1, the resin sheet is placed on the pedestal 21,
The test is performed so that the contacts of the light pen WK1 come into contact with the resin sheet. Moreover, the same test is performed by inclining the pedestal 21. These are for performing the test in a state closer to the actual usage state of the light pen WK1.

FIG. 2 shows a light pen WK1 by the test apparatus 1.
FIG. 3 is a front view of the main part showing the state of the impact strength test of FIG. In the striking strength test, the base plate 23 is mounted on the pedestal 21, and the light pen WK1 is fixed on the base plate 23 with the band 23a so that half of the light pen WK1 is placed on the base plate 23. The body portion is hit with a lucon hammer (rubber hammer) JG1 which is a test jig attached to the arm 14.

Although such a test is not planned as the original usage of the light pen WK1, the operator who actually uses the light pen WK1 hits the light pen WK1 on the edge of the desk or the like. In some cases, it is performed as a durability test against it.
Note that the same striking strength test is also performed with the entire light pen WK1 placed on the pedestal 21.

FIG. 3 shows a keyboard WK2 by the test apparatus 1.
FIG. 6 is a front view of the main part showing the state of the operation test of FIG. In FIG. 3, a spring scale 24 is attached to the arm 14 by a gripping member 15. The spring scale 24 includes a spring shaft 24 that is axially biased by a spring installed inside.
A, a scale 24b for indicating the pressing force of the spring shaft 24a is provided. At the lower end of the spring shaft 24a,
An operation jig 24c for pressing the key KY of the keyboard WK2 to turn it on and off is attached.

In this operation test, first, the arm 1
At the descending end of No. 4, the key KY is pressed by the operation jig 24c.
The scale 24 is turned on, and the pressing force (keystroke force) at that time becomes a set value (for example, 100 to 200 g).
Adjust while watching b. Then, similarly to the above-mentioned test, the motor 16 is started, the arm 14 is reciprocated a predetermined number of times, and the operating state of the key KY is monitored.

Also in these tests, a standardized test can be easily performed with a small amount of time and labor, and the light pen WK1 can be used.
Alternatively, the keyboard WK2 can be accurately evaluated. Further, by using the spring scale 24, the key KY
It is possible to easily set the keystroke force for, and to perform the test in a state close to the actual use state.

In the above-described embodiment, the angular position of the pedestal 21 is adjusted, the condition of the DUT WK is monitored by the industrial camera, other adjustments or measurements are automatically performed, and the program according to the test contents is executed. It is also possible to fully automate the test by inputting in advance into the drive control unit 51.

[0038]

According to the present invention, it is possible to easily test a keystroke device in a short period of time and perform an accurate evaluation of the keystroke device.

According to the invention of claim 2, it is possible to adjust the keying force applied to the keying device. According to the invention of claim 3, the test can be performed in a state closer to the actual usage state of the keystroke device.

[Brief description of drawings]

FIG. 1 is a front view of a test apparatus according to the present invention.

FIG. 2 is a front view of a main part showing a state of a hitting strength test of a light pen by the test device according to the present invention.

FIG. 3 is a front view of a main portion showing a state of a keyboard operation test by the test apparatus according to the present invention.

FIG. 4 is a flowchart showing an example of a light pen operation test.

[Explanation of symbols]

 1 Test Device 14 Arm 15 Gripping Member 16 Motor (Drive Source) 21 Cradle 24 Spring Scale (Pressing Jig) 24a Spring Shaft (Spring Member) 24b Scale (Pressing Force Indicating Member) 33a, 33b Connection Hole (Stroke Adjusting Section) 51 Drive control unit 52 Number counter WK1 Light pen (DUT) WK2 Keyboard (DUT) JG1 Rucon hammer (Test jig)

Claims (3)

[Claims] 1. An arm (14) provided so as to be reciprocally movable.
And a drive source (16) for reciprocating the arm (14).
A stroke adjusting part (33a, b) for adjusting the reciprocating stroke of the arm (14), and a test object (WK) or a testing jig (WK) attached to the tip of the arm (14). A gripping member (15) for mounting a JG), and a cradle (21) arranged below the gripping member (15) for mounting a test jig (JG) or a DUT (WK). A drive control unit (51) that controls the drive source (16) so as to change the moving speed of the arm (15), and a number counter (52) that counts the number of reciprocating movements of the arm (14). Keystroke test device characterized by the following: 2. A spring member (24a) for applying a pressing force to the device under test (WK) mounted on the pedestal (21), and the spring member (15). The keystroke testing device according to claim 1, further comprising a pressing jig (24) provided with a pressing force instruction member (24b) for instructing a pressing force by 24a). 3. The pedestal (21) includes the arm (1).
The keystroke test device according to claim 1 or 2, wherein the keystroke test device is provided so as to be rotatable in order to adjust an angular position with respect to the moving direction of 4).