JPS6231877Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an abrasion tester.

A variety of abrasion resistance testers have been devised to measure the color fastness of textile products, but conventional equipment only performs abrasion resistance tests on painted surfaces, printed surfaces, and plating surfaces such as the front panel of a stereo amplifier. There was a problem in that it was not possible to perform tests under certain conditions, or tests using liquids.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide a wear resistance tester suitable for carrying out wear resistance tests on front panels of stereo amplifiers, etc.

In order to achieve the above object, the present invention includes a crank mechanism that converts rotational motion of a motor shaft into reciprocating motion, a rail that guides a slider, an arm that is driven by the slider and has a head attached to its tip.
A test stand having a test surface, and a head is reciprocated on the test surface.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the wear tester according to the present invention will be described below based on the drawings.

In the drawing, a support plate 12 is erected on a base 10, and a motor 14 is attached to this.

The shaft rotation movement of the motor 14 is performed by the crank mechanism 1
6, the movement is converted into a reciprocating motion in the left-right direction in the figure, and the moving element 18 is driven by the crank mechanism 16.

In the figure, the base 10 has four support rods 20 erected thereon, and two rails 22 for guiding the slider 18 in the left and right direction are attached between the two support rods 20 on the left and right sides. . That is, both sides of the mover 18 are rotatably attached to the respective rails 22, and are driven by the drive shaft 16a of the crank mechanism 16 in the left-right direction in the drawing. Note that the motor side of the crank mechanism is equipped with a mechanism that allows stepless adjustment of the stroke.
The stroke of the mover 18 is adjusted by this mechanism.

The mover 18 has two arms 24A, 24.
B are rotatably attached, and a head 26 is rotatably attached to their tips. A wear element 28 is attached to the grip portion 26a of the head 26.

Further, a test stand 30 is attached on the base 10. This test stand 30 is provided on a substrate 32 fixed to a base 10 so as to be rotatable clockwise or counterclockwise in the figure, and its upper surface is a test surface 32.
It has a test plate 34 which is 4a, and the test plate 3
The inclination of the test surface 34a of No. 4 in the sliding direction is the same as that of the substrate 3.
This can be done by adjusting the screw 36 attached to 2.

With the above configuration, when the motor 14 rotates, the head 26 can be driven back and forth on the test surface 34a, and at this time, the angle of the test surface 34a can be adjusted.

The drive of the motor 14 is controlled by a control section 38, the number of reciprocations of the head 26 is set by a counter 40, and when the count of the counter 40 reaches 0, the drive of the motor 14 is stopped.

Note that there is a locking pawl 4 on the support rod 20 on the left side of the figure.
2 is provided, and an arm 44 is rotatably provided on the support rod 20 at the back left side of the figure, and when the device is stopped, the arm 44 is locked by the locking claw 42, and the arm 44 is Arm 24 on 44
Therefore, in this state, the head 26 is retracted from the test surface 34a.

Further, a weight can be attached to the grip portion 26a, and by adjusting the weight of this weight, the pressing force of the wear element 28 against the test surface 34a can be adjusted.

Note that 46 is a level.

A preferred embodiment of the abrasion tester according to the present invention has the above-mentioned configuration, and its operation will be explained below.

When a wear resistance test is performed using this device, the arm 44 is locked to the locking claw 42, and the arm 24B is placed on this arm 44. In this state, the length of the drive shaft 16a is measured. , the weight of the gripping portion 26a is adjusted, and the screw 36 is used to adjust the front and back angle of the test surface 34a. Note that the left and right tilts are automatically adjusted. Further, the base 10 is set horizontally in advance using a level 46.

Next, the counter 40 is set, the arm 44 is released from the locking claw 42, and the wear element 28 is pressed onto the test surface 34a with a predetermined pressure. At this time, the front panel of the stereo amplifier, etc. is mounted on the test plate 34 with the front facing upward, and therefore the wear element 28 contacts the front panel with a predetermined pressure.

Preparations for the wear resistance test are completed as described above, and the motor 14 is driven by the control section 38. Then, the wear element 28 is reciprocated on the front panel on the test surface 34a while being in surface contact with it in the left and right directions in the figure with a predetermined pressure.

The wear element 28 is reciprocated a predetermined number of times and when the counter 40 shows 0, the motor 14 is stopped and the wear resistance test is completed.

As explained above, according to the present invention, it is possible to perform an abrasion resistance test on the front panel of a stereo amplifier, and to know the state of abrasion of the coating film and printed symbols.

Further, according to the embodiment, since the wear element 28 is driven back and forth while contacting the sample on the test surface 34a with a predetermined pressure regardless of its height, a good wear resistance test can be performed regardless of the thickness of the sample. can be done.

Since the angle of the test plate 34 can be adjusted using the screws 36, the surface of the sample placed on the test plate 34 can always be set horizontally. It is also possible to perform wear resistance tests on samples with

Furthermore, since the moving distance of the wear element 28 can be adjusted by adjusting the length of the crankshaft, the wear test can be performed only on a predetermined range of the sample placed on the test plate 34. Therefore, it is extremely suitable for testing only the symbols printed on the front panel of a stereo amplifier.

Since the tip of the abrasion element 28 makes surface contact with the sample on the test plate 34, a uniform load is applied to the sample, and the sample is therefore uniformly worn by the abrasion element 28, which causes variations in the abrasion test. will not occur.

Further, in the above-mentioned embodiment, the wear element 28 is made of a felt material and is impregnated with alcohol, a solvent, etc., and an alcohol test, a solvent test, etc. can be performed.

Furthermore, even if the thickness of the sample changes, since the head 26 is configured to move up and down perpendicularly to the sample, it is possible to follow samples of different thicknesses without any adjustment.

Furthermore, since the gripping portion 26a is rotatably supported by the head 26, even if the sample is tilted from side to side, the abrasion element can move along the inclination of the sample. Even if there is a left-right inclination, it can be tested without any problems.

[Brief explanation of the drawing]

The drawing is a front view showing a preferred embodiment of the wear resistance tester according to the present invention. 14 is a motor, 16 is a crank mechanism, 18 is a slider, 22 is a rail, 24 is an arm, 26 is a head, 28 is an abrasion element, 30 is a test stand, 34a is a test surface, and 38 is a control section.

Claims (1)

[Scope of utility model registration request] A test stand equipped with a test surface and arranged so that the inclination angle of the test surface can be variably adjusted; and a crank that converts motor shaft rotational motion into reciprocating motion and that can variably adjust the length of the crankshaft. a mechanism, a control unit configured to set the number of drives of the crank mechanism, a mover slidably driven along a rail by the crank mechanism, and a mover rotatably connected to the mover and configured to control the drive speed of the mover. A wear-resistant device characterized by comprising an arm for driving a head attached to the tip by a slide, and an abrasion element rotatably attached to the grip of the head and sliding on the test table. testing machine.