JPH0654941A - Sliding wheel - Google Patents

Abstract

PURPOSE:To provide the excellent turning/braking functions by easily allowing the movement (side slip) of a wheel in the direction perpendicular to the travel direction of the wheel. CONSTITUTION:Base end sections of multiple rim pieces 3 are connected on the periphery of a nearly circular disk 2, tire pieces 5 constituting tires continued into a ring shape are slidably fitted at the free end sections of the rim pieces 3 in the direction perpendicular to the travel direction of a wheel, respectively, and elastic bodies 10 exciting in the sliding direction are arranged on both sides of the sliding direction, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide type wheel in which a tire can be displaced (slide) in a direction orthogonal to a rotational traveling direction.

[0002]

2. Description of the Related Art A wheel that travels on the ground or on the floor is usually attached to a tire, which is made of rubber or metal, which constitutes the outer peripheral portion of the wheel, a rim for supporting the tire, and a wheel shaft. It is composed of a hub and wheel supporting means composed of discs or spokes for connecting the rim and the hub.

Since such a wheel rotates around the wheel shaft, the traveling direction is limited to the direction orthogonal to the wheel shaft. The movement of the wheel in the direction orthogonal to the rotational traveling direction of the wheel generally impairs the traveling property of the wheel and causes the tire to be significantly damaged. Therefore, in general, when changing the traveling direction of the wheels, a method of turning the wheel shaft itself to a position orthogonal to the traveling direction using a steering device (steering device) connected to the wheel shaft is adopted. There is.

However, when the wheel is used as a sports equipment, for example, as a roller wheel for a roller ski that slides down an inclined surface, a strong force is applied to the wheel in a direction orthogonal to the running direction, It is required to move (slide) the wheels in orthogonal directions.

In order to meet this demand, there has been developed one in which a tire of a wheel is made of an elastic material such as a rubber material and an edge portion is further provided on the outer peripheral end of the tire (for example,
Japanese Patent Publication No. 61-59745). That is, the tire is elastically deformed (displaced) by its own elastic force to positively move (sideslide) the wheel, thereby facilitating the turning motion and causing the edge part to perform the braking motion,
The device is designed to make the turning sharper.

[0006]

However, as described in Japanese Patent Publication No. 61-59745, the wheel is moved (skids) by using the normal elastic deformation (displacement) of the tire itself. However, since sufficient turning performance cannot be obtained and rapid braking and stopping operations cannot be performed, it has been difficult to use as a roller wheel of a roller ski that descends at high speed, for example.

In view of the above, the present invention provides a wheel having an excellent turning and braking function by allowing the wheel to easily move (side slip) in the direction orthogonal to the traveling direction of the wheel. To aim.

[0008]

In order to achieve the above object, a slide type wheel according to the present invention has a base end portion of a plurality of rim pieces connected to the periphery of a substantially disc-shaped disc, and
At the free end of each rim piece, each tire piece forming a tire that is continuous in a ring shape is slidably mounted in a direction orthogonal to the traveling direction of the wheels, and an elastic body that urges in this sliding direction is attached. It is characterized by being arranged on both sides in the sliding direction.

[0009]

According to the present invention constructed as described above, each wheel piece travels in the rotational direction of the wheel and each tire piece acts on each tire piece when an external force acts in a direction orthogonal to the traveling direction. Depending on the magnitude of the external force, it slides and displaces in the direction orthogonal to the traveling direction against the elastic force of the elastic body, and the displacement of each tire piece causes the wheels to move in the direction orthogonal to the traveling direction (sideslip). ), Then use this movement to make a sudden stop or turn at a steep angle. By combining this straight running action, sideslip, sudden stop or turning action, excellent turning and stopping functions are exhibited when used as a roller wheel for sports equipment, especially a roller ski that slides down an inclined surface.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show a first embodiment of the present invention. A wheel 1 in this embodiment has a disk 2 in the shape of a disk located at the center and a disk 2 around the disk 2. It is mainly composed of a plurality of rim pieces 3 that are radially connected and a tire piece 5 that constitutes the tire 4 that is supported by the rim pieces 3 in the same number as each rim piece 3 and that is continuous in a ring shape.

A hollow cylindrical hub portion 2a for inserting a wheel shaft (not shown) is provided in the center of the disk 2, and a plurality of circumferentially equidistant circumferential passages are provided in the peripheral portion. A hole 2b is bored, and the base end portion of each rim piece 3 is connected through each through hole 2b.

That is, each of the rim pieces 3 is bent at its base end portion into a substantially U-shape and a concave shape so as to sandwich the peripheral edge portion of the disk 2 from the left and right sides. A through hole 3a is also formed at the end, and both through holes 2a
In the state where b and 3a are communicated with each other, the fixing pin 6
The two and the three are connected to each other by inserting and fixing by caulking or the like.

The respective rim pieces 3 are arranged side by side along the same plane in a state where their end faces are in contact with each other to form a substantially disc-shaped rim, that is, a disc-shaped rim. Is radially cut along the diametrical direction so as to be divided into a plurality of parts.

At the free end of each of the rim pieces 3, a tire piece support curved in an arc shape with a central portion protruding in a direction orthogonal to the rotational traveling direction of the wheel 1, that is, along the width direction of the wheel 1. The portion 3b is formed and the supporting portion 3b is formed.
On both sides of the wheel 1 along the circumferential direction, a pair of slide rails 3c bent in a U-shape in a direction facing each other are integrally connected. Further, an elongated hole 3d extending along the length direction of the slide rail 3c is formed at a substantially central position in the width direction sandwiched between the slide rails 3c.

On the other hand, the lower surface of each tire piece 5 is formed in a shape curved in an arc along the shape of the tire piece support portion 3b, and both sides are slidable in the slide rail 3c. A slide plate 7 which is a slide portion 7a to be fitted is integrally embedded. Further, a guide pin 8 is projectingly provided at a position corresponding to the elongated hole 3d at the center of the slide plate 7.

As a result, each tire piece 5 is guided along the slide rail 3c of each rim piece 3 via the slide portion 7a of the slide plate 7, and the tire piece support portion 3b together with the slide plate 7 is formed into this shape. It slides in the width direction of the wheel 1 along with the slide of the guide pin 8 in the elongated hole 3d.

A slide auxiliary member 9 made of, for example, Teflon resin is attached to each end of the slide portion 7a to smoothly slide the slide plate 7, and thus the tire piece 5.

Then, by pushing the guide pins 8 from the left and the right on both sides of the guide pin 8 positioned inside the rim piece 3 along the width direction of the wheel 1, the tire piece 5 of the wheel 1 is pushed. A pair of return rubbers 10 are arranged as elastic bodies that are biased in the width direction, that is, in the sliding direction of the tire piece 5.

Thereby, the return rubber 10 is normally used.
By the elastic force of each tire piece 5, each tire piece supporting portion 3
b, the center position along the width direction of the wheel 1, that is, the tire pieces 5 are positioned so as to linearly continue in a ring shape, and a force acts on the tire pieces 5 in the width direction in a part of the tire pieces 5. Sometimes
As shown in FIG. 3, one of the return rubbers 10 contracts in proportion to the magnitude of this force, and the tire piece 5 slides along the direction in which this force acts. The elastic force of 10 restores the original position.

In the wheel 1 having such a structure, in the state where no force is applied from the direction (width direction of the wheel 1) orthogonal to the rotational traveling direction, each tire piece 5 is treated like a normal wheel. Will make a rolling motion by successively landing in a straight line.

When a force is applied to the wheel 1 from a direction orthogonal to the traveling direction, each tire piece 5 which is in contact with the ground is returned to the return rubber 10 in a direction orthogonal to the traveling direction.
Slide against the elastic force of. This sliding amount is proportional to the magnitude of the acting force, and when a large force acts, it slides more and the central axis of the wheel 1 moves downward.

This lowering of the axial position gives the ski player a sensation similar to the "sinking" action of the ski on the snow surface, which is necessary when turning with ski equipment, and continuously moves to the grounding position. By being combined with the continuous sliding phenomenon of each tire piece 5 coming in, an operation is performed in which the wheel 1 moves forward while moving (side slipping) in the direction orthogonal to the traveling direction.

By using this wheel 1 as a roller wheel for a roller ski, for example, the same feeling and performance as those for skiing on snow can be exhibited, and excellent turning and stopping operations can be obtained.

FIGS. 5 to 7 show an example of use in which the wheel 1 is used as a roller wheel of a roller ski.

In the figure, reference numeral 20 indicates a roller ski tool used for sliding down an inclined surface. The ski equipment 20 comprises a flat shoe mount 21 on which the skier's shoes are mounted and fixed, and the wheels 1 are rotatably attached to the front and rear of the shoe mount 21 using frames 22a and 22b. ing.

As described above, in the ski device 20 using the wheel 1 as the roller wheel, as shown in FIG. 6, for example, when the plowbogen posture is taken in the valley direction on the inclined surface, the inclined surface of the tire 4 is formed. A force acts on the tire piece 5 located at a position where it comes into contact with the (ground contact surface) from a direction different from the traveling direction of the wheel 1, so that the tire piece 5 is orthogonal to the traveling direction.
Slide sideways.

As a result, the wheel 1 undergoes a lateral movement (sideslip) and a turning motion without changing its direction, and the turning and downswing motions can be performed with a feeling almost similar to that of a ski on snow. it can.

Further, as shown in FIG. 7, even when the left and right ski equipments 20 are aligned and slid down, each tire piece 5 can be easily adjusted according to the magnitude of the lateral force of the wheel 1. The wheel 1 can be slid in the lateral direction to cause a skid motion, and the subsequent turn motion can be easily performed.

In the above embodiment, each tire piece 5 is brought into contact with the ground contact surface at almost a point, that is, the outer peripheral surface 5a of the tire piece 5 projects in the center along the width direction of the wheel 1. It is formed so as to have an arc shape (hereinafter referred to as "R tire").

As described above, by using the R tires, the sliding phenomenon of each tire piece 5 is unlikely to occur only by tilting the wheel 1 to the left or right side, and the sliding phenomenon occurs when necessary. can do.
This is because when the wheel 1 is tilted, the ground contact point moves to the outside in accordance with this tilt angle, and by applying a force to the outside in a state where the wheel 1 is tilted,
This is because the sliding phenomenon of the tire piece 5 can be generated.

On the other hand, as shown in FIG. 8, each tire piece 5 ′ is in linear contact with the ground contact surface, that is, the outer peripheral surface 5 ′ a of the tire piece 5 ′ has the width of the wheel 1. It can also be formed to be substantially flat along the direction (hereinafter,
Flat tires).

As described above, when the flat tire is used, the point of action moves to the outside at the same time when the wheel 1 is tilted, and the moment that causes the sliding phenomenon of the tire piece 5'becomes large. Compared with this, it is possible to make the sliding phenomenon much easier to occur.

FIG. 9 shows a second embodiment. In this embodiment, a recess 31a is formed at the free end of a rim piece 31 having a structure similar to that of the first embodiment. 31a
A guide rod 32 extending in the width direction of the wheel 30 is laid inside.
Then, the guide rod 32 is slidably inserted into a slide metal (slide bearing) 34 which is attached to a base portion of a tire piece 33 having substantially the same structure as in the first embodiment.
Further, return springs 35 as elastic bodies are arranged in the recesses 31a on both sides of the slide metal 34 to dispose the wheels 30.
Is configured.

By forming the guide rod 32 in a rectangular cross section and the hollow portion of the slide metal 34 in a shape conforming to the shape of the guide rod 32, play can be prevented. it can.

FIG. 10 shows a modification of the second embodiment. In this modification, instead of the slide metal 34 in the second embodiment, a linear motion bearing or an oilless bearing 36 is used, and a return bearing is used. A rubber elastic body 37 is used instead of the spring 35, and the wheels 30 'are
Is configured.

With this structure, the guide rod 3
The sliding part of 2 can be sealed more completely.

[0038]

As described above, according to the present invention,
When external force is applied in the direction orthogonal to the running direction of the wheels,
Depending on the magnitude of this force, each tire piece that constitutes the tire is continuously slid in a direction orthogonal to the running direction of this wheel, whereby the wheel is used, for example, as a roller wheel of a roller ski. You can skid, make a sudden stop, or make a sharp turn.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view showing a first embodiment of a wheel according to the present invention.

FIG. 2 is likewise a side view with a part omitted.

FIG. 3 is a front view showing a mounting portion of the tire piece in a state where the tire piece is slid to one side.

FIG. 4 is an exploded perspective view with a part omitted.

FIG. 5 is a side view showing a usage example in which the first embodiment is used as a ski tool.

FIG. 6 is a diagram attached to the description of the operation of the ski device shown in FIG. 5;

FIG. 7 is a diagram attached to the description of the operation of the ski device shown in FIG. 5;

FIG. 8 is a front view of a tire piece mounting portion showing a modified example of the tire piece.

FIG. 9 is a cross-sectional view of essential parts showing a second embodiment.

FIG. 10 is a sectional view of an essential part showing a modification of the second embodiment.

[Explanation of symbols]

 1,30,30 'Wheel 2 Disc 3,31 Rim piece 3c Slide rail 4 Tire 5,5', 33 Tire piece 7 Slide plate 7a Sliding part 8 Guide pin 10,35,37 Elastic body 20 Ski equipment 34,36 Bearing

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hisao Hiroi 552 Takayama, Tokamachi City, Niigata Prefecture Honma Science Co., Ltd.

Claims (1)

[Claims] 1. A tire having a base end portion of a plurality of rim pieces is connected to the periphery of a substantially disc-shaped disc, and the free end portions of the rim pieces are provided with tire pieces constituting a ring-shaped continuous tire. A slide-type wheel characterized in that each is slidably mounted in a direction orthogonal to the traveling direction of the wheel, and elastic bodies that urge the slide direction are arranged on both sides of the slide direction.