JPH0440987A - Roller element for playground slide - Google Patents

Abstract

PURPOSE:To prevent any pain from being felt at the hip when sliding down on a playground slide by connecting a rib to an outer cylinder and an inner pipe on the narrow diameter side of the outer cylinder, connecting the rib only to the inner pipe on the wide diameter side, and forming a specified interval between an outer edge and the inner peripheral face of the outer cylinder. CONSTITUTION:A roller element 3 is composed of an outer cylinder 31, inner cylinder 32 and rib 33, and they are integrally formed by using a certain material having suitable elasticity, wear resistance and weather resistance or the like. The outer cylinder 31 is gradually made thick from the end of the narrow diameter and forms the external form of the roller element 3. The narrow diameter end is integrally continued to the inner cylinder 32, and the wide diameter end is opened. Then, the interval about at 2-3mm is formed between the outer edge at this part of the rib 33 and the inner peripheral face of the outer cylinder 31, and even when strong force is applied to the outer cylinder 31, this interval is deformed and gets contact with the outer edge. Thus, since a roller is made apparently flexible and any paint is not felt at the hip even when sliding down on this sliding surface, the using effect of the playground slide is much improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a roller element constituting a roller of a roller slide.

(Prior Art) In recent years, roller slides have been used for many slides.

This roller slide has a length of 80 to 120 am, a diameter of 30 to 45 mm at the narrow end, and a diameter of 35 mm at the wide end.
A large number of freely rotating rollers each consisting of four roller elements with diameters of approximately 5f)+mφ and gradually increasing in size from the narrow end to the wide end are arranged in parallel between the left and right side plates. It has a slippery surface.

Therefore, on this slide, there is almost no sliding movement between the person sliding down the slide and the roller surface, so the appearance of the sliding surface is better than that of a conventional slide where the sliding surface is made of board material. Sliding friction is significantly reduced, and there is almost no risk of frictional heat being generated due to sliding friction with the sliding surface or wear of clothing when sliding downhill.

(Problems with the prior art) The free-rotating rollers of the conventional roller slide described above are
Of the four roller elements, the outer two roller elements have their thick longitudinal ends located on the outside, and the inner two roller elements have their thick longitudinal ends located in the center.INK Je 4
In addition, by arranging them in this manner, a gentle mountain shape is formed on the sliding surface along the center line of the downhill path, and furthermore, gentle valley portions are formed on both sides of the mountain shape.

Therefore, the sliding surface becomes a curved surface that matches the shape of your buttocks when you lower your hips on this surface, and when you lower your hips in the center of this sliding surface, your thighs will be located in the valleys on the left and right, so you can slide down. You will feel less pain in your buttock.

Moreover, since the thighs are located in the valleys of the left and right, if the body leans to either the left or right while downhill, the upper thighs will appear to be riding on the slope, and there will be a tendency to try to slide down toward the center. Therefore, you end up sliding down the center of the downhill course, making the downhill course more stable.

However, since this roller element needs to be molded using a material with excellent abrasion resistance and weather resistance, such as nylon, it has had the problem of being too hard and causing pain.

An object of the present invention is to provide a roller element that does not impair predetermined abrasion resistance, weather resistance, etc., has a flexible appearance, and does not cause pain to the buttocks when sliding down the roller element. .

(Structure of the Invention) The roller element for a slide according to the present invention has an outer tube that gradually becomes thicker from a narrow end to a large diameter end, an inner tube, and a rib made of nylon or the like with appropriate elasticity and wear resistance. , which is integrally molded using materials that have weather resistance, etc.
The rib is connected to the outer tube and the inner tube on the small diameter side of the outer tube, and is connected only to the inner tube on the large diameter side, with a distance of about 2 to 3 am between the outer edge and the inner peripheral surface of the outer tube. This is characterized in that a gap is formed to facilitate deformation of the larger diameter side of the outer cylinder.

(Function) The roller element for a slide according to the present invention includes an outer cylinder,
The inner tube and ribs are integrally molded using a material such as nylon that has appropriate elasticity, wear resistance, weather resistance, etc. Especially on the small diameter side of the outer tube, the ribs are molded on the outside. By connecting the tube and inner tube, both are reinforced, and at the same time,
The outer tube is firmly fixed to the inner tube.

In addition, on the wide meridian side, by connecting the rib only to the inner tube and forming a gap of about 2 to 311I+ between its outer edge and the inner peripheral surface of the outer tube, this part of the inner tube is reinforced. This part of the outer cylinder is in a free state and deforms when an external force is applied to it.

Moreover, since the amount of deformation of the outer cylinder is regulated by the ribs,
Even if an external force becomes strong, the roller will not be deformed beyond a certain level. (Example) The roller for a roller slide according to the present invention will be specifically described below based on the illustrated example.

FIG. 1 shows a longitudinal sectional view of the slideway of the roller slide.

The basic structure of the slide is the same as that of a conventional roller slide.

That is, the reference numeral 1.1 in the figure is a side plate, and 2 is a freely rotating roller, and a large number of freely rotating rollers 2 are arranged in parallel between the left and right side plates, thereby forming a sliding surface.

In particular, this roller 2 consists of four roller elements 3 that are tapered gradually from one end to the other, so that the sliding surface forms a gentle mountain shape along the center line of the slide. Furthermore, there are gentle valleys on both sides.

The roller element 3 consists of an outer tube 31, an inner tube 32, and ribs 33, which are integrally molded using a material such as nylon that has appropriate elasticity, wear resistance, and weather resistance. has been done.

The outer cylinder 31 has a length of 80 to 120+u+, a diameter of about 30 to 45 mm at the narrow end, and a diameter of about 35 to 50 mm at the large diameter end, and gradually increases from the narrow end to the large diameter end. It is thick and forms the outer shape of the roller element 3.

The narrow end is integrally continuous with the inner tube 32, and the large diameter end is open, so that when an external force is applied to this part, it deforms and absorbs the external force. .

The inner tube 32 has a tubular shape with the same inner diameter as the diameter of the support shaft 4, and is fitted onto the support shaft 4 to maintain the outer cylinder 31 at a predetermined position on the support shaft 4.

The rib 33 is connected to the outer cylinder 3 on the narrow diameter side of the roller element 3.
1 is connected to the inner tube 32, reinforcing both, and at the same time, the outer tube 32 is connected to the inner tube 32. J31 is firmly fixed, and the large diameter side is connected only to the inner tube 32, reinforcing the second part of the inner tube 32, and connecting the outer tube 31.
This part is left in a free state. In particular, a gap of approximately 2 to 3 mm is formed between the outer edge of this portion of the rib 33 and the inner peripheral surface of the outer tube 31, and even if a strong force is applied to the outer tube 31, this will deform and the outer edge will Once it comes into contact with , it will no longer deform.

(Effects) As detailed above, in the present invention, the roller that constitutes the sliding surface of the roller slide is constituted by a roller element consisting of an outer tube, an inner tube, and a rib. The large diameter side of the tube is open,
When an external force is applied to this part, it deforms and absorbs the external force, and even if a strong force is applied to this part, it does not deform beyond a certain level. Therefore, in the roller element, by making the larger diameter side portion of the outer cylinder thinner, it is possible to make this portion easier to deform.

As a result, the rollers appear to be more flexible, and the user will not feel any pain in the buttocks when sliding down this sliding surface, further improving the effectiveness of the slide.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing a slideway of a roller slide using a roller element according to the present invention, FIG. 2 is a side view showing an example of the roller element, and FIG. 3 is a longitudinal sectional view of the same. 1: Side plate 2: Roller 3: Roller element 31: Outer tube 32: Inner tube 33: Rib 4: Support shaft

Claims (1)

[Claims] The length is 80-120mm, the direct meridian of the wide end is 35-50m.
m, in a roller element consisting of an outer tube, an inner tube, and a rib, the direct diameter of the narrow end being about 30 to 45 mm, which gradually becomes thicker from the narrow end to the wide end;
The rib is connected to the outer tube and the inner tube on the narrow diameter side of the outer tube, and is connected only to the inner tube on the wide diameter side, and there is a gap of 2 to 3 mm between the outer edge and the inner peripheral surface of the outer tube. A roller element for a slide, characterized in that a gap of about 100 degrees is formed.