JPH0411070Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention is applicable to so-called slippery surfaces, such as the treads of stairs, ladders, and stepladders, the surface of roads, the bottom of footwear, and the conveyance surface of conveyance devices. This invention relates to improvements in metal anti-slip bodies for preventing slipping.

(Prior Art) Conventionally, as this type of metal non-slip body, one in which a large number of non-slip protrusions are formed on the surface of a metal plate material by pressing, for example, is known.

However, in this type of product, each non-slip protrusion is relatively large, and the cross section is basically chevron-shaped, with rounded corners.
The heights were uneven.

For this reason, the contact surface pressure upon contact with the object to be contacted is relatively high, and conversely, the frictional resistance against sliding force is relatively low.

(Problems that the invention attempts to solve) This invention was created in view of the problems mentioned above and to solve them, and its purpose is to:
It is an object of the present invention to provide a metal skid body that has a relatively low contact surface pressure when it comes into contact with an object to be contacted, and conversely has a relatively high frictional resistance against sliding force.

(Means for Solving the Problems) The metal anti-slip body of the present invention has a metal base material and a plurality of top surfaces and side surfaces integrally formed on the surface of the base material. It is unique in that it is composed of uniform and fine non-slip protrusions with acute angles.

(Function) The object to be contacted comes into contact with the top surface of each non-slip protrusion of the metal non-slip body.

In such a state, when a sliding force acts between the contact object and the object, a frictional force opposing the sliding force is generated at the corner formed between the top surface and the side surface of each anti-slip protrusion.

Therefore, relative sliding between the metal skid body and the object to be contacted is prevented.

Each non-slip protrusion has a top surface and a side surface, and the angle formed by these is an acute angle, which is uniform and fine. Therefore, the contact surface pressure is relatively small depending on the top surface, and Frictional resistance becomes relatively large depending on the corners between the side surfaces.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a sectional view showing a metal skid body according to an embodiment of the present invention. FIG. 2 is a perspective view thereof.

The main parts of the metal non-slip body 1 include a base material 2 and a non-slip protrusion 3.

The base material 2 is made of metal.

In this example, it is made of steel and has a plate shape.

The anti-slip protrusions 3 are formed in large numbers integrally on the surface of the base material 2, and are uniform and minute having a top surface 4 and a side surface 5, and the angle α formed by these is an acute angle.

In this example, it is made of steel of the same quality as the base material 2, protrudes integrally from its surface in a predetermined arrangement, and has a substantially mushroom shape with a flat top surface 4 and arcuate side surfaces 5. , the angle α formed by both sides 4 and 5 is 90
A corner 6 is formed at the boundary between the two surfaces 4 and 5, the corner anti-slip projections 3 protrude uniformly, and the top surfaces 4 are on the same plane.

Therefore, in the actual example, the size of the metal non-slip body 1 is
The size is 400 mm x 500 mm, and the total thickness T is 0.5 mm, the maximum diameter D of the non-slip protrusion 3 is 0.13 mm, the height H of the non-slip protrusion 3 is 0.13 mm, and the angle α of the corner 6 is 70 degrees. It's summery.

Such a metal non-slip body 1 is cut into a suitable size and attached to a so-called slippery surface such as a stair tread by using adhesive means such as screws or double-sided adhesive tape.

Next, the operation will be explained based on such a configuration.

A contact object (not shown) comes into contact with the top surface 4 of each anti-slip protrusion 3 of the metal anti-slip body 1.

When a sliding force acts between the object and the object to be contacted in such a state, a counteracting frictional force is generated at the corner 6 formed between the top surface 4 and side surface 5 of each anti-slip protrusion 3. .

Therefore, relative sliding between the metal skid body 1 and the object to be contacted is prevented.

Each non-slip protrusion 3 is uniform and fine with a top surface 4 and a side surface 5, and the angle α formed by these is an acute angle, so that the contact surface pressure is relatively small, especially due to the top surface 4, and Frictional resistance increases due to the corner 6 between the top surface 4 and the side surface 5.

In other words, although the contact surface pressure is small, the frictional resistance is large, and the object to be contacted is not damaged, and the anti-slip effect is increased.

The metal anti-slip body 1 can be manufactured, for example, by a method applying photolithography.

FIGS. 3 to 7 are explanatory diagrams showing an overview of the method.

In this method, various metal materials such as steel that can be corroded by a corrosive liquid are used as starting materials.

In this embodiment, as shown in FIG. 3, a steel plate having a predetermined size, that is, 400 mm x 500 mm and a thickness of 0.5 mm is used as the starting material for the anti-slip body material 10.

After degreasing the surface of the anti-slip body material 10, as shown in FIG. 4, a corrosion-resistant photosensitive resin,
That is, a photoresist film 11 is applied.

Next, the photoresist film 11 is subjected to a baking process, that is, a process called pre-bake.

On the other hand, separately, a pattern of the non-slip protrusions 3 to be formed is drawn using a microplotter or the like, and the pattern is reduced to form a photomask 1 which is a precision photographic plate.
2.

Then, as shown in FIG. 5, a photomask 12 is placed on the photoresist film 11 and exposed.

Thereafter, the exposed skid material 10 is developed, and the photoresist film 11 left on the skid material 10 during the development process is subjected to a baking process, that is, a process called post-bake. Depending on the situation, an opening 13 having the same shape as the pattern drawn on the photomask 12 is made in the photoresist film 11 as shown in FIG. 6 to form an exposed metal portion 14.

In addition, in this example, if exposed and developed,
We have described the so-called positive type, which uses a photoresist film and a corresponding photomask from which the exposed areas are removed, but as is well known, on the contrary, if exposed and developed, the areas other than the exposed areas will be removed. It may be a negative type using a photoresist film and a photomask corresponding to the photoresist film to be removed. In short, it is sufficient if the photoresist film remains at the location corresponding to the non-slip protrusion 3 to be formed.

Next, the exposed metal portion 14 is chemically corroded by the corrosive liquid while physically moving the antislip body material 10 having the exposed metal portion 14 obtained in this way relative to the corrosive liquid.

This corrosion causes relative physical movement between the anti-skid body material 10 and the corrosive liquid, so as the corrosion depth increases, it spreads laterally.

In other words, the recesses 15 formed on the surface of the anti-skid material 10 after being etched have a curved cross-section as shown in FIG.

After the etching process is completed, the remaining photoresist film 11 is removed.

Then, as shown in Figures 1 and 2,
A substantially mushroom-shaped anti-slip protrusion 3 is formed between adjacent bay-shaped recesses 15.

In this way, a large number of non-slip protrusions 3 are formed on the surface of the base material 2.
It is possible to fabricate a metal anti-slip body 1 in which .

In addition, the size of the base material 2 is not limited to the previous example,
Can be selected as appropriate.

Although the shape of the base material 2 was plate-shaped in the previous embodiment, it is not limited to this, and may be, for example, block-shaped, such as a square or round shape.

Although the anti-slip protrusion 3 was formed only on one surface of the base material 2 in the previous embodiment, it is not limited thereto, and may be formed on other surfaces, for example.

The size of the anti-slip protrusion 3 is not limited to the previous embodiment.
Can be selected as appropriate.

The shape of the anti-slip protrusion 3 was substantially mushroom-shaped in the previous embodiment, but it is not limited to this, and may be, for example, a striped convex shape as shown in FIG. 8, or a striped convex shape as shown in FIG. Things that are connected in a row crisscrossing each other, or
It may also be honeycomb-shaped as shown in Figure 0.

In the previous embodiment, the arrangement of the anti-slip protrusions 3 was regular, but the arrangement is not limited to this, and may be irregular, for example.

Although the top surface 4 of the anti-slip protrusion 3 was a smooth surface in the previous embodiment, it is not limited to this, and may be a rough surface consisting of a large number of extremely fine and irregular irregularities, as shown in FIG. 11, for example. If the surface is rough, frictional resistance is also taken into consideration. In order to do this, for example, as shown in FIG. 11, a non-slip material 10 with a roughened surface may be used as a starting material. In such a case, the surface area of the anti-slip body material 10 increases, so that the photoresist film 11 can be firmly attached, and subsequent etching can be performed with high precision.

In the previous embodiment, the base material 2 and the anti-slip protrusion 3 were
Although the metal material is used as it is, the material is not limited to this, and for example, only the surface layer where the anti-slip protrusion 3 is provided or the entire surface layer may be hardened to form a hard layer. Alternatively, a coating layer may be formed by coating the surface of the hard layer with a synthetic resin or the like.

(Effects of the invention) As described above, according to the present invention, the following excellent effects can be achieved.

(1) Since the anti-slip protrusion is integrated with the metal base material and has a top surface and side surfaces, the contact surface pressure when it comes into contact with the object to be touched is relatively small, preventing damage to the object. There's nothing to do.

(2) Since the non-slip protrusion is integrated with the metal base material and has a top surface and a side surface, and the angle between these is acute, the frictional resistance against sliding force is relatively large, and the anti-slip protrusion is integrated with the metal base material. It is possible to reliably prevent relative sliding between the two.

(3) Since the contact surface pressure is relatively small, each anti-slip protrusion will not be damaged even if the contact load with the object to be contacted is large.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a metal skid body according to an embodiment of the present invention. FIG. 2 is a perspective view thereof. 3 to 7 are cross-sectional views illustrating a method of manufacturing a metal anti-slip body. 8 to 10 are perspective views showing other shapes of the anti-slip protrusion of the metal anti-slip body. Figure 11 shows
FIG. 3 is a cross-sectional view showing a metal anti-slip body in which the top surface of the anti-slip protrusion is roughened. FIG. 12 is a sectional view showing a skid material having a rough surface. 1... Metal non-slip body, 2... Base material, 3... Non-slip protrusion.

Claims (1)

[Scope of utility model registration request] It is characterized by being composed of a metal base material and a large number of uniform and fine non-slip protrusions integrally formed on the surface of the base material and having a top surface and a side surface, and the angle between these is an acute angle. Metal anti-slip body.