JPH0346780B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shoe sole/floor material slip tester that measures the slip resistance of shoe sole materials or floor materials.

[Problems to be solved by conventional technology and invention]

In order to evaluate the slipperiness of shoe soles and flooring materials in order to prevent slipping accidents of shoes on the flooring materials, it is important to know the slip resistance due to static friction and dynamic friction of the shoe sole materials and flooring materials.

However, such slip resistance not only varies greatly depending on the material and shape of the sole and flooring material, but also depends on the measurement conditions (pulling speed, moving speed,
Measured values also vary depending on load size, ground pressure, initial ground contact time, etc. (For example, regarding the initial ground contact time issue, if the surface of the flooring material is covered with a liquid film such as water, etc.) At the moment of contact between the floor material and the sole, the slip resistance decreases due to the action of the liquid film, but as the contact time between the shoe sole and the floor material increases, the liquid film breaks, and the slip resistance decreases. Conventionally, there was no slip tester that could be used universally for shoe soles and flooring materials.

Also, until now, we have learned the difference between static friction and kinetic friction,
Sliding has been discussed while its usage has remained vague, but when considering slipping, it is important to consider "slip" from the perspective of accident prevention, and "slip" when used for selecting flooring materials. It is necessary to think about the following two things: In other words, to prevent slipping accidents from a safety perspective, it is important to measure the slip resistance caused by dynamic friction, as it is known as the ``banana peel effect,'' which suggests that sliding quickly is more dangerous than sliding slowly. On the other hand, sports floors require a certain degree of slip resistance, so it is important to measure the slip resistance at the point where shoes first get caught, which corresponds to the maximum coefficient of static friction. becomes.

Next, various conventional slip measurements will be explained in more detail.

First, there has been a simple method for measuring shoe slippage, such as pulling the shoe horizontally, but the measured values were unstable and no accurate measurement method had been established.

On the other hand, as a slip tester for floor materials and road surfaces,
The following have been used:

The most widely used is the pendulum-type floor slip tester (JIS A1407) shown in Figure 8.
This testing machine rubs a piece of iron against a flooring material and calculates the dynamic frictional resistance from the length of the scratch. Next, this will be explained in more detail. Reference numeral 1 denotes a hammer, which is swingable about a shaft 2 extending in the horizontal direction. An iron piece 3 is attached to the lower end of the hammer 1 so as to be rotatable within a certain range as shown by an arrow A around a horizontally extending shaft 4. A compression coil spring 5 is interposed between the two parts.

First, the hammer 1 is lifted to a lifting position (indicated by a solid line) at a predetermined height B, and then the hammer 1 is released and the hammer 1 is swung as shown by the arrow C. The iron piece 3 is made to come into sliding contact with the surface of the fixed floor material 6 when it comes to the vicinity of the vertical direction as shown by the one-dot chain line position.
Here, the slip resistance coefficient between the floor material 6 and the iron piece 3 can be determined from the height D of the swing-up position of the hammer 1, which is indicated by the two-dot chain line position.

However, in such a test method, when the floor material 6 and the iron piece 3 come into sliding contact, the spring 5 vibrates, and the contact angle between the floor material 6 and the iron piece 3 changes due to the vibration of the spring 5. The drawback was that accurate measurement values could not be obtained. Furthermore, although this testing machine was able to evaluate the slip resistance characteristics of the walking surface, it was not possible to evaluate the sole material because iron pieces were used. Further, even if sole material is used instead of iron pieces, only a portion of the sole material can be used, and the characteristics of the entire sole cannot be known.

Other slip testing machines include testing machines mainly for evaluating the slippage of building materials. As shown in FIG. 9, the front part of the sole is cut into a rectangular shape, a weight 8 is placed on the cut piece 7, and the piece is pulled diagonally upward via a spring 9 and a load cell 10. The apparent maximum coefficient of static friction H/W is determined from the ratio of the obtained maximum tensile load H to the weight load W. here,
Pulling the weight diagonally upward instead of horizontally is
This is to prevent the generation of rotational force (couple) due to horizontal tensile force and frictional force. In this case, the physical coefficient of friction in the strict sense is H.COS.theta./(WH.SIN.theta.), where .theta. is the tension angle. In other words, from the denominator formula (W-H・SINθ),
As the tensile force increases, the normal force applied to the shoe decreases.

However, because the toe part of the sole is cut off, it is not possible to determine the slip characteristics of the entire sole, such as the difference between shoes with heels and flat-soled shoes without heels, as with the testing machine described above. There was a drawback. In addition, since the weight is pulled through a spring, after it begins to slide, the speed of the weight's pulling movement changes due to the expansion and contraction of the spring due to the magnitude of the frictional force, making the dynamic friction resistance value unstable and its characteristics Another drawback was that it was difficult to understand. Another drawback was that H/W was an apparent maximum coefficient of static friction and did not measure the true coefficient of friction.

The present invention has been developed in view of the above-mentioned circumstances, and is capable of accurately and stably measuring the slip resistance due to static friction and dynamic friction of the sole and flooring material under a wide range of conditions. The purpose of this invention is to provide a shoe sole/floor material slip tester that allows you to know the slip characteristics.

[Means to solve the problem]

The shoe sole/floor material slip tester according to the present invention includes: an arm support; a loading arm supported by the arm support so as to be rotatable around an axis extending in the horizontal direction;
A loading weight suspended from the loading arm, a loading control motor, a drum driven by the loading control motor, the drum being wound around the drum and connected at one end to the loading arm. When the loading arm is rotated in the normal direction, a wire that lifts the loading arm, a wire that can be raised and lowered with respect to the arm support, and a rotation axis of the loading arm of the loading arm and a load point of the loading weight. A shoe support shaft to which a vertical load is applied from the part between, a last attached to the shoe support shaft and on which the shoe is worn, and a load from the rotation axis of the load arm A shoe support shaft lifting means such as a wire that allows the shoe support shaft to be lifted together with the weight side portion when the weight side portion is lifted above a certain level, and a movable floor that is movable in the horizontal direction with respect to the arm support. a movable floor driving device for horizontally moving the movable floor at a variable speed; a vertical load detection means for detecting a vertical load acting on the shoes; and a horizontal load detection means for detecting a horizontal load acting on the shoes. It has the following.

[Effect]

In the present invention, the slip resistance between the sole and the floor material can be measured as follows.

First, the loading control motor rotates the drum in the normal direction to wind up the wire, thereby lifting the loading arm against the loading weight. Together with this loading arm, the shoe support shaft and the shoes are raised, and the shoes are lifted from the upper surface of the movable floor. Leave them slightly apart.

Next, the drum is reversed by the loading control motor to lower the loading arm. Then, the shoes come into contact with the upper surface of the movable floor, and a vertical load due to the loading weight begins to act on the shoes from the loading arm.

In this state, by moving the movable floor in the horizontal direction using the movable floor drive device, slippage is created between the shoes and the movable floor, and the horizontal and vertical loads applied to the shoes are balanced horizontally. If the load is detected by the load detection means and the vertical load detection means, the sliding resistance due to dynamic friction can be measured from the ratio thereof.

Similarly, with shoes in contact with the movable floor, if the movable floor is moved in the horizontal direction by the movable floor drive device via the springs and the maximum horizontal load at that time is measured, it is possible to The sliding resistance due to static friction can be measured from the ratio to the load.

When measuring the sliding resistance due to dynamic friction and static friction as described above, the values of the vertical load and the moving speed of the movable floor can be appropriately selected to perform measurement under a wide range of measurement conditions.

In particular, in the present invention, by reversing the drum using the loading control motor and releasing the lifting of the loading arm by the wire as described above, it is possible to apply a vertical load to the shoes via the loading arm using the loading weight. As a result, a vertical load of a desired magnitude can be instantaneously and precisely applied to the shoe. Therefore, it is possible to accurately measure transient changes in the slip resistance between the sole and the flooring material, and by changing the time from applying a vertical load to moving the movable floor horizontally, Initial ground contact time (sole/
Measurements can also be carried out with various initial contact times between flooring materials.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

1 to 7 show an embodiment of the shoe sole/floor material slip tester according to the present invention. In this embodiment, as shown in FIGS. 1 and 2, a slide rail 12 is provided inside a base frame 11 extending in the horizontal direction, and a movable floor 13 is mounted on the rail 12. It is movable along the One end of a wire 14 is connected to the rear end of the movable floor 13. This wire 14
The wire 14 is wound around a pulley 90 rotatably supported at the rear end of the base frame 11, and the other end of the wire 14 is wound around a drum 16 driven by a movable floor drive motor 15. ing. An adjustment spring 1 made of a coil spring is installed in the middle of the wire 14.
7 is interposed. A movable floor driving weight 19 is connected to the front end of the movable floor 13 via a wire 18. The wire 18 is wound around pulleys 20, 21, and 22 that are rotatably supported by a drive frame 19 that is erected on the base frame 11.

An arm support frame 23 is erected on the base frame 11, and a rear end portion of a fixed arm 24 extending in the horizontal direction is fixed to the arm support frame 23.
The distal end portion 24a of the fixed arm 24 is bifurcated as shown in FIG. 4, and a cylindrical body 25 enters into the bifurcated portion. And this cylinder 2
A rotation shaft 26 attached to the lower end of the fixed arm 5 so as to protrude in the horizontal direction is rotatably supported by the bifurcated tip 24a of the fixed arm 24 via a bearing 27. As a result, the cylindrical body 25 is attached to the fixed arm 24,
In FIG. 1, it is rotatably supported in a plane parallel to the plane of the paper.

A rear end portion of the horizontal load detection arm 28 is rotatably supported by the arm support frame 23 above the fixed arm 24 via a rotation shaft 29 parallel to the rotation shaft 26 . The tip of the horizontal load detection arm 28 is attached to the upper end of the cylinder 25 on the rotation shaft 2.
6 and 29, and are rotatably coupled to each other via a rotation shaft 30, which is parallel to the cylinders 25 and 29, thereby maintaining the cylinder 25 in a substantially vertical direction. A horizontal load detection device 31 consisting of a load cell is interposed in the intermediate portion of the horizontal load detection arm 28.

A shoe support shaft 32 is attached to the cylinder 25 .
It is inserted so as to be movable in the axial direction.
Here, as shown in FIGS. 3 and 4, the key 33 fitted to the shoe support shaft 32 is inserted into the cylindrical body 25.
Since the shoe support shaft 32 is fitted into a keyway 34 provided in the shoe support shaft 32, it is impossible to rotate the shoe support shaft 32 with respect to the cylindrical body 25. As shown in FIG. 3, a vertical load detection device 35 consisting of a load cell is built in near the upper end of the shoe support shaft 32, and this vertical load detection device 35 detects the compressive load acting on the shoe support shaft 32. is detected as a vertical load acting on the test shoe 36, which will be described later.

As clearly shown in FIG. 3, the lower end of the shoe support shaft 32 is screwed with a male threaded portion 37a provided at the upper end of the foot last mount 37. A fixing nut 99 is also screwed onto the lower part of the support shaft 32. Therefore, by loosening the fixing nut 99 and rotating the foot last fixture 37 around the axis with respect to the shoe support shaft 32, the angle of the shoe 36 around the shoe support shaft 32, which will be described later, can be adjusted. By tightening, the foot last fixture 37 can be fixed at any rotational angle with respect to the shoe support shaft 32.

Size-adjustable foot lasts 38 and 39, as described below, are removably attached to the foot last fixture 37. In this embodiment, in order to keep the ground pressure of the test shoes 36 against the movable floor 13 uniform,
If the shoe 36 has a heel, a last 38 as shown in FIG. 5 is attached, whereas if the shoe 36 has a flat sole without a heel, a last 38 as shown in FIG. 6 is attached.
9 is attached.

Next, first, the structure of the last 38 for a heeled shoe shown in FIG. 5 will be explained. Anteroposterior axis 40 extending in the anteroposterior direction
Male threaded portions 41 and 42 are provided at both ends. One end side of a universal joint (not shown) is attached to the male threaded part 41 on the front end side, and a toe part 43 having a shape relatively similar to the toe part of an actual human foot is attached to the other end side of this universal joint. installed. Male thread part 4 on the rear end side
2 is attached to one end side of a universal joint (not shown), and a heel portion 44 having a shape relatively similar to the heel portion of an actual human foot is attached to the other end side of this universal joint. The distance between the toe portion 43 and the heel portion 44 is determined by the male screw portion 41,
Rotate the two universal joints with respect to 42 to connect these joints to the male threaded parts 41,
It can be adjusted by moving 2. A vertical axis 4 is provided in the middle of the longitudinal axis 40 and extends in the vertical direction with a slight inclination from perpendicular to the axis 40.
5 are integrally connected, and this vertical axis 4
A ring-shaped portion 46 is integrally provided at the upper end portion of 5.

Next, the structure of the flat-soled shoe last 39 shown in FIG. 6 will be explained. Anteroposterior axis 47 extending in the anteroposterior direction
Male threaded portions 48 and 49 are provided at both ends. One end of a universal joint 50 is attached to the male threaded portion 48 on the front end side, and the intermediate portion of the front disk support shaft 51 is attached to the other end of the universal joint 50. Discs 54 and 55 are supported at the front and rear ends of the front disc support shaft 51 via universal joints 52 and 53, respectively.
Similarly, one end of a universal joint 56 is attached to the male threaded portion 49 on the rear end side, and the intermediate portion of the rear disc support shaft 57 is attached to the other end of the universal joint 56. ing. A universal joint 58 is provided at the front end and the rear end of the rear disc support shaft 57.
Discs 60 and 61 are supported via 59, respectively. The distance between the discs 54, 55 and the discs 60, 61 is determined by rotating the universal joints 50, 56 relative to the male threaded parts 48, 49, and rotating these joints 50, 56 over the male threaded parts 48, 49. It can be adjusted by moving it. The longitudinal axis 47
A vertical shaft 62 is integrally connected to the intermediate portion of the shaft 47 and extends vertically at a slight angle from perpendicular to the shaft 47. A ring-shaped portion 63 is integrally connected to the upper end of this vertical shaft 62. It is set up as follows. This flat-soled shoe last 39 is used to put on a shoe 36 as shown in FIG.

The foot print 38 shown in FIGS. 5 and 6 as described above,
39 is attached to the foot-shaped fixture 37 by holding the ring-shaped parts 46, 63 between screws 64, 65 provided on the foot-shaped fixture 37, respectively, as shown in FIG. These foot prints 38,
Shoes 36 can be removably worn on the shoes 39.

A rear end portion of a loading arm 66 is rotatably supported at the upper end of the arm support 23 via a rotation shaft 67 parallel to the rotation shafts 26, 29, and 30. A loading weight 68 is suspended from the tip of the loading arm 66, and an adjustment weight 69 is suspended from the rear end. A roller 70 rotatably supported by a loading arm 66 is brought into contact with the upper end surface 32a of the shoe support shaft 32. Here, the upper end surface 3 of the shoe support shaft 32
2a is a circular arc surface centered on the rotation axis 26 of the cylindrical body 25, or a spherical surface centered on the intersection of the rotation axis 26 and the axis of the shoe support shaft 32. Furthermore, the shoe support shaft 32 and the loading arm 66 are connected to a connecting wire 7.
1, but the length of this connecting wire 71 is such that the roller 70 is connected to the upper end surface 32a of the shoe support shaft 32.
The length is such that the wire 71 is relaxed when they are in contact with each other. In this embodiment, this connecting wire constitutes the shoe support shaft lifting means of the present invention.

A loading control motor 72 is mounted on the drive section frame 19, and this motor 72 is connected to the drum 7.
It is designed to drive 3. This drum 73
A wire 74 is wound around it, and the tip of the wire 74 is coupled to the tip of the loading arm 66 .

Proximity switches 75 and 76 are provided at the front end and the rear end of the base frame 11, and these proximity switches 75 and 76 respectively operate when the movable floor 13 moves beyond a certain level to the front end or rear end of the base frame 11. It is designed to detect movement. Further, a proximity switch 77 is attached to the upper part of the shoe attachment shaft 32, and when the proximity switch 77 detects that the loading arm 66 approaches a certain amount or more, It is designed to detect 70 contacts. The movable floor drive motor 15 and the load control motor 72 are controlled by a control device (not shown), and the outputs of the proximity switches 75, 76, and 77 are input to this control device.

Next, the operation of this embodiment will be explained.

First, when measuring the slip resistance due to dynamic friction, the measurement is performed with the spring 17 in a non-functional state by, for example, connecting a wire (not shown) between both ends of the spring 17. Then, the shoe is put on the last 38 or 39, and a loading weight 68 of an appropriate weight is suspended from the tip of the loading arm 66. Then,
The gravity acting on the loading weight 68 causes the loading arm 66,
A vertical load is applied to the shoe 36 via the roller 70, the shoe support shaft 32, the last attachment 37, and the last 38 or 39, and the shoe 36 is pressed against the upper surface of the movable floor 13 from above. Note that this vertical load can be finely adjusted by changing the weight of the adjustment weight 69.

Next, first, by driving the loading control motor 72 and rotating the drum 73 in the direction of winding up the wire 74 (normal rotation direction), the loading arm 66 is lifted against the loading weight 68, and the connecting wire 71 is rotated. The shoe 36 is tensioned, and the shoe 36 is raised together with the shoe support shaft 32 and the like, and is kept slightly away from the upper surface of the movable floor 13.

Next, the loading control motor 72 is reversely rotated to lower the loading arm 66. Then, the shoe 36 first comes into contact with the upper surface of the movable floor 13, and then the roller 70 contacts the upper end surface 32a of the shoe support shaft 32, and the connecting wire 71 is relaxed, and the load of the loading weight 68 is transferred to the shoe 3.
6. Further, when the proximity switch 77 detects that the roller 70 has contacted the upper end surface 32a of the shoe support shaft 32, the control device drives the movable floor drive motor 15 and connects the wire 14 to the drum 16.
is wound up, and the movable bed 13 is moved to the rear end side of the base frame 11 at a constant speed (at this time, the movable bed driving weight 1
9 is lifted). This causes the shoes 36 to slide forward on the movable floor 13 at a constant speed.

When the shoe 36 is sliding on the movable floor 13 in this manner, the horizontal load acting on the sole due to dynamic friction causes the shoe support shaft 32 and the cylindrical body 25 to move toward the rotation shaft 2.
6, and the horizontal load is thereby transmitted to the horizontal load detection arm 28, so that this horizontal load can be detected by the horizontal load detection device 31. Therefore, the slip resistance due to dynamic friction between the shoes 36 and the movable floor 13 can be measured from the ratio of this horizontal load to the vertical load detected by the vertical load detection device 35 as described above.

When the proximity switch 76 detects that the rear end of the movable floor 13 has reached a certain position on the rear end side of the base frame 11, the control device stops the movable floor drive motor 15 to stop the movable floor 13, The load control motor 72 is driven to lift the load arm 66, and the shoes 36 are again slightly spaced from the upper surface of the movable floor 13.

Next, the control device reverses the loading control motor 72 to lower the loading arm 66 again to ground the shoes 36 on the upper surface of the movable floor 13, and reverses the movable floor drive motor 15 to lower the load arm 66 to the movable floor drive weight 19. Due to the acting gravity, the movable floor 13 moves at a constant speed to the base frame 11.
(At this time, the movable bed driving weight 19 is lowered.) This causes the shoes 36 to slide on the movable floor 13 in the opposite direction. Also in this case, the horizontal load detection device 31
Horizontal load and vertical load detection device 3 detected by
The sliding resistance due to dynamic friction can be measured from the ratio to the vertical load detected by 5.

When the proximity switch 75 detects that the front end of the movable floor 13 has reached a certain position on the front end side of the base frame 11, the control device stops the movable floor drive motor 15 to stop the movable floor 13, and also stops the movable floor drive motor 15. 72 to lift the loading arm 66,
The shoes 36 are slightly spaced apart from the upper surface of the movable floor 13.

Thereafter, by repeating such an operation a necessary number of times, the sliding resistance due to dynamic friction in both the front and rear directions can be measured in time series.

Note that when measuring in this way, by selecting the rotation speed of the movable floor drive motor 15,
The moving speed of the movable floor 13 and therefore the shoes 36 and the movable floor 1
It is possible to select various relative speeds between 3 and 3 and measure the dynamic frictional resistance for each speed.

In the present invention, as described above, by reversing the drum 73 by the loading control motor 72 and releasing the lifting of the loading arm 66 by the wire 74, a vertical load is applied to the shoe 36 via the loading arm 66 by the loading weight 68. Therefore, a vertical load of a desired magnitude can be instantaneously and accurately applied to the shoe 36. Therefore, it is possible to accurately measure transient changes in the slip resistance between the sole and the flooring material, and by changing the time from applying a vertical load to moving the movable floor 13 in the horizontal direction. It is also possible to perform measurements by varying the initial ground contact time (the initial contact time between the sole and the floor material).

Further, in this embodiment, the loading arm 66 and the shoe support shaft 32 are in contact with each other via the roller 70, and the upper end surface 32a of the shoe support shaft 32
is a circular arc surface centered on the rotation axis 26 of the cylinder 25,
Alternatively, since it is a spherical surface centered on the intersection of the rotation axis 26 and the axis of the shoe support shaft 32, the rotation axis 26
The shoe support shaft 32 and the cylindrical body 25 are rotated smoothly around the center, and the horizontal load can be detected accurately.

With this slip tester, slip resistance due to static friction can also be measured in substantially the same way. however,
In this case, with the springs 17 functioning, the movable floor 13
, measure the maximum horizontal load at that time, and calculate the slip resistance from the ratio of that value to the vertical load. In this case, the pulling speed of the force applied to the shoe 36 (the slope when the vertical axis is the force applied to the shoe 36 and the time is the horizontal axis) is determined by the spring constant of the spring 17 or the winding speed of the wire 14. You can change it by changing it. In this way, this slip tester has a wide range of measurement conditions and can handle slip characteristics during all kinds of operations.

Furthermore, in this embodiment, the slip resistance can be measured by making only the toe part contact the movable floor 13 without making the entire sole contact the ground, as described below. That is, as shown in FIG. 7, the load cell 7 is placed on the base frame 11.
A sole support plate 79 is placed through the sole support plate 79, the heel of the shoe 36 is placed on the sole support plate 79, and only the toe is in contact with the movable floor 13, and the load cell 78 acts on the heel. By detecting the shared load and subtracting this shared load from the overall vertical load detected by the vertical load detection device 35, the vertical load acting on the toe portion is calculated and the slip resistance value of the toe portion is measured. I can do it. Therefore, measurements can be made without cutting the toe part, unlike the testing machines conventionally used to evaluate the slippage of flooring materials. Therefore, this tester can be used not only as a tester for evaluating the slippage of shoes 36, but also as a tester for evaluating the slippage of flooring materials.

In the present invention, the configuration for detecting the horizontal load and the vertical load is not limited to the configuration of the above embodiment, and for example, a load cell may be interposed in the wire 14 and the load cell may be used to detect the horizontal load. A force plate (floor reaction force meter) may be installed below the floor surface, and the vertical load may be detected by the force plate. However, as mentioned above, wire 1
In the case where a load cell is interposed in 4 and the load cell is used to detect the horizontal load, a force is generated by the shaking of the movable floor driving weight 19 and the sudden acceleration of the movable floor 13 at the time of startup, and this force interferes with the horizontal load. There is a risk that horizontal load detection may become somewhat inaccurate.

〔Effect of the invention〕

As described above, according to the present invention, (a) it is possible to accurately and stably measure the slip resistance due to static friction and dynamic friction of shoe soles and flooring materials under a wide range of conditions, and to Measurements can also be taken.

(b) It is possible to know the slip characteristics of the entire sole of the shoe.

It is possible to obtain excellent effects such as

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the shoe sole/floor material slip tester according to the present invention with a part of the base frame cut away, FIG. 2 is a plan view showing the embodiment, and FIG. A partially sectional side view showing the shoe support shaft and foot last fixture in the embodiment, FIG. 4 is a sectional view taken along the - line in FIG. 1, and FIG. 5 shows the last for a heeled shoe in the embodiment FIG. 6 is a perspective view showing the last of the flat-soled shoe in the embodiment, and FIG. 7 is an explanatory diagram showing the state in which the slip resistance of the toe of the shoe is measured in the embodiment. , Figure 8 is a side view showing the principle of a conventional pendulum-type floor slip tester;
Fig. 9 is a side view showing the principle of a conventional testing machine for evaluating the slippage of building materials, and Fig. 10 is an explanation showing a state in which a flat-soled shoe is worn on the last for flat-soled shoes shown in Fig. 6. It is a diagram. 13...Movable floor, 14...Wire, 15...Movable floor drive motor, 16...Drum, 17...Adjustment spring, 18...Rail, 19...Movable floor drive weight,
23...Arm support frame, 24...Fixed arm, 2
6...Rotation axis, 28...Horizontal load detection arm, 3
1...Horizontal load detection device, 32...Shoe support shaft, 3
5... Vertical load detection device, 36... Shoes, 37...
Foot type fixture, 38, 39... Foot type, 66... Loading arm, 68... Loading weight, 70... Roller, 7
1...Wire (shoe support shaft lifting means), 72...
...Loading control motor, 73...Drum, 74...Wire.

Claims (1)

[Claims] 1. An arm support, a loading arm rotatably supported by the arm support around an axis extending in the horizontal direction, a loading weight suspended from the loading arm, and a loading control device. a motor; a drum driven by the loading control motor; and a wire wound around the drum and connected at one end to the loading arm, and lifting the loading arm when the drum is rotated in the normal direction. , a shoe support shaft that is movable up and down with respect to the arm support and is subjected to a vertical load from a portion of the loading arm between the rotation axis of the loading arm and the load point of the loading weight; And, along with being attached to this shoe support shaft,
When the foot last to be worn and the loading weight side portion of the loading arm is lifted by a certain amount from the rotation axis of the loading arm, the shoe support shaft is lifted together with the portion. A shoe support shaft lifting means, a movable floor movable horizontally with respect to the arm support, a movable floor drive device that moves the movable floor horizontally at a variable speed, and detecting a vertical load acting on the shoe. A shoe sole/floor material slip tester comprising vertical load detection means for detecting a horizontal load acting on the shoe, and horizontal load detection means for detecting a horizontal load acting on the shoe. 2. The shoe sole/floor material slip tester according to claim 1, wherein the shoe support shaft lifting means is a wire whose one end is attached to the loading arm and the other end is attached to the shoe support shaft. 3. The shoe sole according to claim 1, wherein the movable floor driving device is capable of driving the movable floor via a spring.
Floor material slip tester.