JPH0637741U - Press operation member inspection device - Google Patents

Abstract

(57) [Abstract] [Purpose] To measure the pressing force and the movement amount of a pressing operation member such as an operation button simultaneously and accurately, and to judge their mutual relationship. [Structure] The pressing force measuring means 1 provided on the gantry 10 is moved vertically by a driving means 3. The movement amount is measured by the movement amount measuring means 2. Operation button 100 for inspection
Is pressed by the measuring shaft 4 of the pressing force measuring means 1 and the load is measured. Pressing force measuring means 1 and movement amount measuring means 2
The output value of is input to the computer and processed.
The rotation of the motor 8 is controlled by the computer.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an inspection device for inspecting the operating state of various operation buttons, pressing type opening / closing lids and other pressing operation members.

[0002]

[Prior art]

 For example, when the release button of an autofocus type camera is pressed by a certain first predetermined amount and is in a half-pressed state, the autofocus operates and a second predetermined amount is further pressed. Sometimes the shutter can be released. FIG. 6 is a schematic configuration diagram of such an operation button 100, which includes an elastic surface 101, conductors 104, 105 and 106, and insulators 102 and 103 arranged between these conductors. . When the bulging portion 101a of the elastic surface 101 is pressed (half-pressed) by the first predetermined amount, the bulging portions 104a and 105a of the conductors 104 and 105 come into contact with each other (first contact point), and the second predetermined amount is pressed. Then, the bulging portion 105a of the conductor 105 and the conductor 106 come into contact with each other (second contact).

The operation button 100 can be accurately operated by each conducting body before or after being incorporated in the camera body, with a predetermined pressing force (load) and a moving amount (stroke of the operator's finger). It is necessary to check whether or not there is continuity. The following methods are known as this inspection method.

First, when measuring the movement amount of the operation button 100, as shown in FIG. 7, the pressing member 111 is fixed to the sliding portion of the gantry 110, and the dial 113 is rotated to move the pressing member 111 downward. Then, the pressing member 111 is further moved down with reference to the position where the pressing member tip 112 contacts the upper surface of the operation button 110. Then, whether or not each conductor is in contact with the above-mentioned first contact and second contact is confirmed by a display means such as a lamp or a buzzer connected to each conductor, and the pressing member 111 at that time is checked. The amount of movement is measured by the scale 114 of the gantry 110.

Further, in measuring the pressing force, instead of the pressing member 111, for example, a tension gauge 117 as shown in FIG. 8 is fixed to the sliding portion of the gantry 110, and the tension gauge is performed in the same manner as described above. The load on the first contact and the contact on the second contact are measured on the scale 118 by lowering the jig 117.

However, in the above-mentioned method, since the pressing force and the moving amount of the operation button are measured separately, the inspection process is complicated and the efficiency is low, and a measurement error due to the proficiency of the operator occurs. There is. Further, as shown in FIGS. 9 and 10, the relationship between the movement amount or the pressing force and the conduction state of each contact point can be measured only individually, and the mutual relation between the movement amount and the pressing force cannot be determined. There is also the problem that it is not possible to accurately judge the inherent changes (habits).

[0007]

[Problems to be solved by the device]

 In view of such a problem, the present invention provides an apparatus capable of simultaneously and accurately inspecting the pressing force and the moving amount of a pressing operation member and easily determining the mutual relationship of the pressing force and the moving amount. With the goal.

[0008]

[Means for Solving the Problems]

 Means adopted by the present invention to solve the above-mentioned problems include a pressing force measuring unit that presses an object to be inspected to measure the pressing force, a driving unit that moves the pressing force measuring unit toward the object to be inspected, A moving amount measuring unit for measuring the moving amount of the pressing force measuring unit, and processing output information of the pressing force measuring unit and the moving amount measuring unit, correlating the pressing force and the moving amount, and outputting them to the display unit. And a control means for controlling the driving means.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic view of a pressing operation member inspection apparatus showing an embodiment of the present invention, in which a pressing force measuring means 1, a moving amount measuring means 2 of the pressing force measuring means 1, and a pressing force measuring means 2 are vertically moved. The driving means 3 for moving in the direction is provided.

The pressing force measuring means 1 is a known pressing force measuring device used for various types of compression strength measurement, tensile strength measurement, etc. Here, an operation button for inspecting the measuring shaft 4 provided at the lower end is used. When it is pressed against 100, the corresponding load is output and displayed.

The moving amount measuring means 2 is for measuring the moving amount of the pressing force measuring means 1 in the vertical direction, and is supported by a holder -11 fixed to the upper end of the pedestal 10. The movement amount measuring means 2 uses a laser type displacement sensor here, and the measuring beam is arranged so as to hit the upper surface of the upper end penetrating portion 4a of the measuring shaft 4 of the pressing force measuring means 1. That is, in the pressing force measuring means 1 used in this embodiment, the measuring shaft 4 penetrates to the upper part of the main body, and when a load is applied to the lower measuring shaft 4, the upper end penetrating part 4a thereof is caused by the load. Since the structure is such that it escapes upward by the amount of movement, in order to measure the exact amount of movement of the measuring shaft 4, it is necessary to apply the measuring beam to the upper end penetrating portion 4a of the measuring shaft 4.

The driving means 3 includes bearings 6 and 7 fixed in the vertical direction of the pedestal 10, a screw rod 5 axially mounted between the bearings 6 and 7, and a motor 8 for rotating the screw rod 5. The arm 9 of the pressing force measuring means 1 is screwed onto the screw rod 5. Then, by rotating the motor 8 in the normal or reverse direction and changing the rotating direction of the screw rod 5, the pressing force measuring means 1 can be moved in the vertical direction. The bearings 6 and 7 are provided with an upper limit switch 12 and a lower limit switch 13 in order to regulate the amount of movement of the pressing force measuring means 1.

The contact continuity measuring means 14 is a device for measuring whether or not the first contact point and the second contact point are energized when the operation button 100 is pressed, and the conductors 104, 105 of the operation button 100, 106 is connected.

FIG. 2 shows another embodiment of the present invention. In this embodiment, a horizontal substrate 4a is provided on the measuring shaft 4 of the pressing force measuring means 1, and the measuring beam of the moving amount measuring means 2 is reflected on the horizontal substrate 4a to measure the moving amount of the measuring shaft 4. The movement amount measuring means 2 is fixed to the gantry 10 at the proper position, and the pressing force measuring means 1 is moved up and down by the driving means 3 as in the above-described embodiment.

FIG. 3 is a block diagram of the operation control block of the above-described inspection apparatus. The output measured values by the pressing force measuring means 1, the moving amount measuring means 2 and the contact continuity measuring means 14 are input / output interface phases. After being inputted to the computer 20 via 21, the data is processed according to a predetermined program and outputted to a display means 22 such as a CRT or a printer. The motor 8 of the driving means 3 is also connected to the interface 21 of the computer 20 via the drive circuit 8a, and its rotation is controlled according to a predetermined program.

Next, an operation example of the above-described embodiment will be described with reference to the flow chart shown in FIG. First, the inspection operation button 100 is placed below the measuring shaft 4 of the pressing force measuring means 1, and the conductor of the operation button 100 and the contact conduction determining means 14 are connected via a probe or the like. Although the operation button alone is inspected here for convenience, the operation button may be inspected after the operation button is incorporated into the camera body or the like and before the outer cover is attached.

Next, when a start signal is output from the computer 20, the motor 8 rotates and the pressing force measuring means 1 moves downward along the screw rod 5. At the same time, the output load data of the pressing force measuring means 1 is taken into the memory 23 of the computer 20 (step 30).

When the tip of the measuring shaft 4 of the pressing force measuring means 1 that has moved downward comes into contact with the upper surface of the operation button 100 and the CPU 24 determines that the predetermined inspection start load is applied, it is stored in the memory 23. The position data (previous inspection record) of the pressing force measuring means 1 is initialized (steps 31, 32, 33).

After that, the pressing force measuring means 1 moves one step (a preset moving amount of, for example, 0.1 mm or 0.01 mm) (step 34), and the position data measured by the moving measuring means 2 is moved. The (movement amount) is taken into the memory 23 of the computer 20.

The CPU 24 of the computer 20 determines whether or not the moving amount of the pressing force measuring means 1, that is, the distance measured by the moving measuring means 2 has reached a predetermined maximum distance by turning on the lower limit switch 14. Judgment is made (step 35), and the ON / OFF of the first contact and the second contact of the operation button 100 is measured by the contact continuity measuring means 14 and the ON / OFF of the operation button 100 is measured by the pressing force measuring means 1 on condition that it has not reached. Load is measured (steps 36, 37). These data are stored in the memory 23 of the computer 20.

Next, the CPU 24 determines whether or not the load measured by the pressing force measuring means 1 exceeds a preset load (step 38), and if it does not exceed the preset load, the routine starts from step 34 described above. -Repeat Chin.

If the lower limit switch 14 is turned ON in step 35, or if the load by the pressing force measuring means 1 exceeds the set load in step 38, it is determined whether the operation button 100 has operated under a predetermined condition. That is, after determining whether or not the ON operation of the first contact and the second contact has been confirmed (step 39), if it is not operating, an error warning is displayed and an error warning is displayed. If it is operating, The inspection of the operation button 100 is completed (steps 40 and 41).

The CPU 24 of the computer 20 performs tabulation processing, graphing processing, etc. based on the input data from the pressing force measuring means 1, the moving amount measuring means 2, and the contact continuity measuring means 14, It is output to the display means 22. FIG. 5 shows an example of graphing processing according to the present invention, and shows changes in the load on the operation button when the moving amount of the pressing force measuring means 1 is used as a reference. As compared with the conventional example shown in FIGS. 9 and 10, it is possible to measure with higher accuracy, and it is possible to read a change peculiar to the operation button.

The above-described embodiment is an example of the present invention, and the structures of the pressing force measuring means 1, the moving amount measuring means 2, the driving means 3 and the like are shown for convenience, and may be arbitrarily set as necessary. It can be changed, and accordingly, the block diagram of FIG. 3 and the flowchart of FIG. 4 can be changed.

In the above-mentioned embodiment, the case of inspecting the release button of the camera is explained as an example, but the pressing operation of the panel switch, the keyboard operation button, the pressing type opening / closing lid, etc. The same can be used for the inspection of.

[0026]

[Effect of device]

 According to the present invention described above, the pressing force and the movement amount of the pressing operation member can be measured simultaneously and accurately, and the correlation between them can be easily determined. In addition, there will be no individual differences between operators, and in-line inspection processes will be possible.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an inspection apparatus showing an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing another embodiment of the present invention.

FIG. 3 is a control block diagram showing an embodiment of the present invention.

FIG. 4 is a flow chart showing an embodiment of the present invention.

FIG. 5 is a graph showing an inspection example by the inspection device of the present invention.

FIG. 6 is a schematic sectional view showing an example of an inspection operation button.

FIG. 7 is a schematic diagram of an inspection device for explaining a conventional inspection method.

FIG. 8 is a schematic view of a conventional pressing force inspection gauge.

FIG. 9 is a graph showing a conventional inspection example.

FIG. 10 is a graph showing another conventional inspection example.

[Explanation of sign]

 1 Pressing force measuring means 2 Moving amount measuring means 3 Driving means 4 Measuring axis 5 Screw rod 6 Bearing 7 Bearing 8 Motor 9 Arm 10 Frame 11 Holder-12 Upper limit switch 13 Lower limit switch 14 Contact continuity measuring means 20 Compu -Input / output 21 Input / output interface 22 Display means 23 Memory 24 CPU

Claims (1)

[Scope of utility model registration request] 1. A pressing force measuring unit that presses an object to be inspected to measure a pressing force, a driving unit that moves the pressing force measuring unit toward an object to be inspected, and a moving amount of the pressing force measuring unit is measured. A moving amount measuring unit, a control unit for processing the output information of the pressing force measuring unit and the moving amount measuring unit, correlating the pressing force and the moving amount and outputting to the display unit, and controlling the driving unit. Inspection device for pressing operation members.