JPH0543057U - Abrasion tester - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to perform wear tests on shoe sole materials, spike pins, etc. under conditions very similar to actual wear conditions, in a short time, and in a good operating environment. [Structure] A rotary drive shaft 6 is horizontally provided in a hermetically sealed polishing tank 2 containing a granular abrasive material 1 in a lower portion thereof, and a rotary locus of a sample fixing portion is provided on the rotational drive shaft 6 within a layer of the abrasive material 1. A sample holder 5 having a diameter that passes through was fixed, and a vibrator 3 was attached to the polishing tank 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an abrasion tester, and more particularly to a spike pin attached to the sole of sports shoes for athletics, soccer, baseball, golf, etc., and an abrasion tester for inspecting the abrasion resistance of the sole material.

[0002]

[Prior Art]

 Conventionally, as this type of abrasion tester, a rotary drive shaft was installed vertically above an open-top type polishing tank containing granular abrasives, and a sample was inserted into the abrasives on this rotary drive shaft. There is one in which the sample holding plate to be held in place is fixed so as to face the polishing tank, and a vibrator is attached to the polishing tank (Shokai Sho 63-19242).

In the abrasion tester having the above structure, since the polishing tank is vibrated by the vibrator, the sample always passes through the layer of the abrasive while being in contact with the new abrasive, and the stable abrasion condition is maintained. can get.

[0004]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional abrasion tester, the sample is always inserted into the abrasive and is rotated for abrasion.

However, in an actual exercise state, since the shoe sole and the spike pin repeatedly come into contact with the ground and move away from each other, wear is intermittently repeated.

Therefore, the conventional wear tester described above has a problem in that it is not possible to create conditions that are very similar to the actual wear conditions, and it is not possible to easily obtain a correlation with the practical wear test. It was

Further, the above-mentioned conventional abrasion tester uses an open top type polishing tank. For this reason, when the sample is rotated at high speed, the abrasive material scatters, so the test cannot be performed at high speed, and the test time becomes long, and the working environment due to dust deteriorates.

Therefore, an object of the present invention is to provide a wear tester that can be worn under conditions that are very similar to actual wear conditions, that a short test time is possible, and that the working environment is good. ..

[0009]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a rotary drive shaft horizontally in a tightly closed type polishing tank containing a granular abrasive material in the lower part, and the rotary drive shaft rotates the sample fixing part. A sample holder having a diameter whose trajectory passes through the layer of the abrasive was fixed, and a vibrator was attached to the polishing tank.

[0010]

[Action]

 When the sample is fixed to the tip of the sample holder and the rotary drive shaft is driven, the sample rotates in a vertical plane, and the sample moves into and out of the layer of abrasive material contained in the lower part of the polishing tank. Repeatedly, the sample comes into contact with the abrasive and wears while passing through the layer of the abrasive. Since this movement is similar to the movement of the shoe sole or spike pin against the ground and then away from the ground in the actual movement state, the sample can be worn under the same conditions as the actual wear conditions. It should be noted that the trajectory formed as the sample passes through the layer of abrasive is always in contact with new abrasive as the polishing tank is immediately filled by the vibrator.

Further, since the polishing tank is a closed type, the polishing material does not scatter even when the sample is rotated at high speed. Therefore, the working environment can be kept good, and the high-speed rotation can shorten the test time.

[0012]

【Example】

 An embodiment of the present invention will be described below.

The wear tester of the present invention comprises a closed-type polishing tank 2 for containing a granular abrasive material 1, a vibrator 3 for vibrating the polishing tank 2, and a sample 4 held in the polishing tank 2. The sample holder 5 and the horizontal rotation drive shaft 6 for rotating the sample holder 5 are provided.

The polishing tank 2 is composed of a cylindrical peripheral wall having a horizontal axis, and a rear wall and a front wall provided on the rear and front faces of the peripheral wall. The front wall is divided into upper and lower halves, and an upper half of the front wall can be opened and closed by a hinge 7.

The polishing tank 2 is attached to a base 8 via a vibrator 3. The vibrator 3 is composed of a motor 9 and an eccentric mechanism 10. A vibration isolator 12 is fitted between the back wall of the polishing tank 2 and the front wall 11 of the base 8.

At the center of the rear wall of the polishing tank 2, a rotary drive shaft 6 rotatably supported by a bearing 13 is inserted through a front wall 11 of a base 8. The rotary drive shaft 6 is connected to a drive motor 14 installed in the base 8 via a transmission mechanism 15. At the front end of the rotary drive shaft 6 protruding into the polishing tank 2, a disk-shaped sample holder 5 having a sample fixing portion 16 at its tip is fixed. The diameter of the sample holder 5, that is, the length from the rotary drive shaft 6 to the sample fixing portion 16 is such that the rotation trajectory of the sample fixing portion 16 is the polishing path when the polishing material 1 is accommodated in the lower half of the polishing tank 2. The length is such that it passes through the layers of material 1.

The sample holder 16 of the sample holder 5 is constructed as follows according to the shape of the sample. For example, FIGS. 3, 4, and 5 show spike pins for golf, athletics, and sackers, respectively, but for those with a mounting screw 17 on the back of the spike pin, A mounting plate 19 having a through hole 18 through which the mounting screw 17 can be inserted is fixed to the tip of the sample holder 5, the mounting screw 17 of the spike pin is inserted into the through hole 18 of the mounting plate 19, and the nut 20 is inserted from the opposite side. And fix it with. Further, in the case of the spike pin having no mounting screw, the spike pin is provided with a through hole 21 of the same size as the through hole 18 of the mounting plate 19 as shown in FIG. To be fixed to. Further, as shown in FIG. 7, a flange 24 is provided at the end of the sample 4, and the flange 24 is put around the mounting hole 18 of the mounting plate 19, and the pressing plate 25, the bolt 26, and the nut 27 are used. It may be fixed.

An exhaust port 28 is provided above the peripheral wall of the polishing tank 2, and a dust collector 30 is connected to the exhaust port 28 via a suction pipe 29. Further, a polishing material discharge port 31 is provided at the bottom of the polishing tank 2, that is, below the peripheral wall, and a discharging pipe 33 is connected to the polishing material discharge port 31 via an openable shutter 32. ..

As the abrasive 1 to be housed in the polishing tank 2, steel grit (hardness: 570 to 690 Hv, 790 to 950 Hv), alumina abrasive, silica sand and the like can be used.

A wear test is performed by the wear tester having the above structure as follows.

First, the shutter 32 at the bottom of the polishing tank 2 is closed, and the polishing material 1 is filled into the polishing tank 2 by opening the upper side of the front wall of the polishing tank 2 to about half.

Next, the sample 4 is fixed to the sample holder 5, and the upper part of the front wall of the polishing tank 2 is closed and hermetically sealed.

Then, the motor 9 and the drive motor 14 of the vibrator 3 are driven to vibrate the polishing tank 2, and the rotary drive shaft 6 is rotated to rotate the sample holder 5 in the polishing tank 2 for a predetermined time. Let As a result, the sample 4 fixed to the sample holder 5 intermittently passes through the layer of the abrasive 1 in the polishing tank 2, and the sample 4 is worn by the abrasive 1.

After that, the amount of wear is measured from the weight of the worn sample 4, and the distance that the sample 4 passes through the abrasive 1 is calculated from the rotation amount of the drive motor 14, that is, the wear distance is calculated. The wear resistance between the samples 4 is evaluated from the relationship between the above-mentioned wear amount and the like.

When the abrasion resistance test is completed, the shutter 32 at the bottom of the polishing tank 2 is opened while the dust collector 30 is operating, and the used abrasive 1 is discharged.

[0026]

[Effect of the device]

 As described above, according to the present invention, it is possible to carry out a wear test of shoe sole materials, spike pins, etc. under conditions very similar to actual wear conditions, in a short time, and in a good working environment. it can.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the present invention.

FIG. 2 is a front view of the above.

FIG. 3 is a sectional view showing a state in which a sample is fixed to a sample holder.

4 is the same as FIG.

5 is the same as FIG.

6 is the same as FIG.

7 is the same as FIG.

[Explanation of symbols]

 1 Abrasive Material 2 Abrasive Tank 3 Vibration Machine 4 Sample 5 Sample Holder 6 Rotation Drive Shaft 16 Sample Fixing Part 28 Exhaust Port 29 Exhaust Pipe 30 Dust Collector 31 Abrasive Material Discharge Port

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 591020515 Teruhiko Inaba 2-8, Naka, Midorigaoka-cho, Miki-shi, Hyogo Prefecture 10 (71) Applicant 000000310 Asitx Co., Ltd. 7-1, 1-1 Naka-machi, Minatojima, Chuo-ku, Hyogo Prefecture (72) Inventor Toshiaki Nishioka 4-5-1 Suzuran Taipei Town, Kita-ku, Kobe City (72) Inventor Keiichi Yamanaka 6-3-1, Naruko, Kita-ku, Kobe City (72) Inventor Koji Goto Sakamoto-cho, Kasai City Address 295 (72) Inventor Teruhiko Inaba 2-8 Naka, Midorigaoka-cho, Miki City 10 (72) Inventor Katsuhisa Ohno 4-6-503 Sumiyoshidai, Higashinada-ku, Kobe

Claims (3)

[Scope of utility model registration request] 1. A rotary drive shaft is horizontally provided in a hermetically sealed polishing tank containing a granular abrasive material in a lower portion thereof, and a rotation locus of a sample fixing portion passes through the abrasive material layer on the rotational drive shaft. A wear tester in which a sample holder having a diameter is fixed and a vibration machine is attached to the polishing tank. 2. The abrasion tester according to claim 1, wherein an exhaust port is provided at an upper portion of the polishing tank, and a dust collector is connected to the exhaust port through a suction pipe. 3. The abrasion tester according to claim 1, wherein an abrasive material discharge port is provided at the bottom of the polishing tank so as to be openable and closable.