JP2000079190A - Roller skates - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller skate capable of efficiently employing a kicking force to propulsion, thus enabling a skater to, without restriction of running places, run silently and switch between running and stop readily, and achieving long propulsion time, high speed, stable and safe skating. SOLUTION: A roller skate comprises a shoe portion 1; a support frame 2 mounted to the shoe portion 1; and wheel frame 6 attached to a front side of the support frame 2 in such a manner that it can freely swing and support wheels; wherein a one-way clutch 11 is disposed between the wheel frame 6 and the wheels for restricting rotation only when a force making the wheels rotate backward works.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller skating shoe used for sports, and more particularly to a roller skate capable of running efficiently and at high speed and safely.

[0002]

2. Description of the Related Art FIG. 10 is a view showing a conventional blade-type roller skate 30. As shown in FIG. FIG. 11 is a view showing a conventional roller skating shoe 40. As shown in FIG. Small hard wheels 31 and 41 are attached to the bottoms of these roller skate shoes 30 and 40, and are mounted so that the lower surfaces of the stoppers 32 and 42 are located at a high position where they do not come into contact with the ground when stopped.

[0003]

The above-mentioned conventional roller skates 30, 40 have the following disadvantages. 1)
As shown in FIG. 4, the conventional roller skating shoes 30, 40 have different running directions from the kicking direction, and only the cosine α component of the kicking force is used as the propulsive force, and only a part of the kicking force is used. 2) In order to make the stoppers 32 and 42 touch the ground at the time of stopping, it is necessary to raise the heel or toes and stop at an angle to the ground, and it was not possible to switch between stopping and running in a continuous operation. 3) In the latter half of the kicking operation due to the structure of the ankle, the heel floated and the time required to transmit the propulsion force to the ground was short, and the kicking force could not be fully utilized. 4) Since the wheelbase is short and small hard wheels are used, the running noise is large, and there is a danger of sudden stopping when there is a depression on the ground or a change of direction due to obstacles such as pebbles. 5) Since the wheels were mounted under the shoes, the center of gravity was high and the wheels were unstable.
6) The conventional roller skate 30,
In order to use the 40, it was necessary to use a roller skating rink or to reduce the running speed. Therefore,
The present invention can efficiently use the kicking force as a propulsion force, can travel quietly with no limitation on the traveling place, can easily switch between stopping and traveling, has a long propulsion time, can travel at high speed, stable, and safely. It aims to provide roller skates.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a shoe portion, a support frame provided on the shoe portion, and a wheel provided on the front side of the support frame so as to freely swing. And a one-way clutch that regulates the rotation of the wheel only when a force for rotating the wheel backward acts on the wheel frame. According to a second aspect of the present invention, in the first aspect, the wheels are disposed in front and rear of the shoe portion. In the invention described in claim 3, the support frame is detachable from the shoe part. With the configuration as described above, the following operation and effect can be obtained. That is, according to the first aspect of the present invention, since the wheel frame is swingably provided with respect to the support frame, even if the heel rises when kicking backward, the wheels are in contact with the ground, and the kicking force is increased. Is transmitted to the ground via wheels. For this reason,
The kicking force can be efficiently transmitted to the wheels. Also,
Since the one-way clutch is provided between the wheel and the wheel frame, the rotation is restricted even if a force is applied to kick the wheel backward and rotate the wheel backward. Therefore, the kicking force can be sufficiently transmitted to the ground efficiently.
According to the invention described in claim 2, the center of gravity of the shoes can be lowered, and stable running can be performed. According to the third aspect of the present invention, the support frame can be removed to walk with only the shoes, and the maintenance of the support frame, the wheel frame, the wheels, and the like can be easily performed.

[0005]

FIG. 1 is a side view showing a roller skate according to a first embodiment of the present invention. The roller skating shoe includes a shoe portion 1, a support frame 2 attached to a bottom surface of the shoe portion 1, and a wheel frame 6 attached to a lower front portion of the support frame 2 via a hinge 5 so as to swing freely. A front wheel 3a and a rear wheel 3b are attached to the front and rear ends of the wheel frame 6, respectively. A guide 4 protrudes from the rear lower end of the support frame 2. The shoe 1 is arranged so that it does not interfere with the front wheel 3a even when the shoe 1 rotates forward about 30 degrees about the hinge 5. A hole 6 a is formed in the wheel frame 6. The guide 4 of the wheel frame 6 fits into the hole 6a when the heel of the shoe 1 is parallel to the ground. As a result, the wheel frame 6 is restrained in the left-right direction with respect to the support frame 2. The rear wheel 3b is fixed to the axle 7, the axle 7 is rotatably supported at both ends by wheel bearings 28, and a one-way clutch 11 is mounted between the axle 7 and the wheel frame 6. Next, the one-way clutch 11
The structure and operation of the device will be described. That is, the one-way clutch 11 is provided with a clutch inner race 22, a clutch outer race 21 which rolls on the outer periphery thereof, and a clutch groove 24 which is opened in the inner diameter of the clutch outer race 21. The clutch spring 23 and the spherical engaging member 25 It is stored in a space formed by the groove 24 and the outer periphery of the clutch inner ring 22. At the time of kicking, on the kick side, the clutch inner wheel 22 and the clutch outer wheel 21 rotate in the direction indicated by the double arrow as shown in FIG. The engagement member 25 moves toward the narrower portion of the clutch groove 24 by the rotation in the locking direction, and the clutch outer ring 21 and the clutch inner ring 22 are integrated. The running side includes the clutch inner wheel 22 and the clutch outer wheel 2
1 rotates in the direction of a single arrow as shown in FIG. The engagement member 25 moves to the wider side of the clutch groove 24 by the rotation in the locking direction, and the clutch outer wheel 21 and the clutch inner wheel 22 are free to rotate in the running direction. The roller skate thus configured is used as follows. That is, a state in which the player is kicking out with his right foot and running with his left foot will be described as an example. When the right foot shoe is kicked off the ground to accelerate, the kicking speed is faster than the running speed, so the rear wheel 3b is restricted by receiving the turning force in the locking direction at the same time as touching the ground. All the kicking power is the driving force. In the latter half of the kicking out, the kicked out foot is located behind the body, the knee moves forward from the shoe part 1, and as a result, the heel floats on the ground as shown in FIG. When the heel is in a floating state, the wheel frame 6 is opened by the weight of the rear wheel 3b, and the rear wheel 3 continues to touch the ground even if the heel is lifted. At this time, since the left foot is being driven by the propulsive force, the engaging member 25 moves to a wide side as shown in FIG. 7, a gap is formed between the clutch outer ring 21 and the engaging member 25, and the clutch outer ring 21 is free. , And the wheel 3 travels on the ground without resistance. Therefore, the kicking force has little loss and acts on the ground as a propulsive force for a long time, so that the vehicle can run at high speed. On the other hand, even when traveling on uneven terrain, the wheelbase is long and the wheels are large and can be rolled smoothly, while the wheels are made of a soft material and can run quietly. Next, a method of stopping will be described. That is, when the front side of the shoe portion 1 is brought closer, that is, when both feet are positioned so as to be inner thighs, the other shoes interfere with each other and are stopped for forward movement. The rearward movement is restricted by the one-way clutch 11, and the vehicle can be stopped with the front and rear wheels grounded as in the running state without inclining the shoe section 1. As described above, this first
In the roller skate shoe according to the embodiment, since the kicking direction and the running direction can be matched, there is no need to kick in the left and right direction, and as a result, the center of gravity does not move left and right, and the kicking force is propelled. Can be used efficiently. Also,
Since the wheels do not float even when the heels of the shoes are floating, the power to kick efficiently until the end of kicking can be used for propulsion for a long time. Therefore, the acceleration can be sufficiently performed. In addition, since stop and running can be switched by continuous operation,
You can switch to running smoothly and quickly. On the other hand, since the wheelbase is long and large soft wheels are used, the running noise is low, and it is safe and stable when there is unevenness on the ground. In addition, since the wheels are attached to the front and rear of the shoe 1, the center of gravity is low and stable. Therefore, it can be used not only in a roller skating rink but also in a park, a plaza, etc., and has a wide range of uses. FIG. 7 is a view showing a main part of a roller skating shoe according to a second embodiment of the present invention. That is, in the second embodiment shown in FIG.
, The clutch outer ring 21 is fixed to the wheel frame 6,
The clutch inner ring 22 is fixed to the axle 7. Wheel frame 6
An axle bearing 28 is provided on the non-clutch side to rotatably support the axle 7. In the roller skates according to the second embodiment, the same effects as those in the first embodiment can be obtained. Note that the present invention is not limited to the above-described embodiment. That is, the one-way clutch 1
1 may be of another type. Further, an elastic body such as a spring may be provided between the support frame 2 and the wheel frame 6 so that the two frames are opened from each other to strengthen and stabilize the grounding in the latter half of the kick. In addition, it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0006]

According to the present invention, the kicking force can be efficiently used for the propulsion force, the traveling place is not restricted, the vehicle can travel quietly, the switching between stop and traveling is easy, the propulsion time is long, and the speed is high. It is an object of the present invention to provide a roller skate that can run stably and safely.

[Brief description of the drawings]

FIG. 1 is a side view showing a roller skating shoe according to a first embodiment of the present invention and a view of a rear wheel portion viewed from below.

FIG. 2 is a diagram showing a kicked-out attitude of the roller skating shoe of the present invention.

FIG. 3 is a diagram showing a relationship between a kicking force, a propulsion force, and a kicking force of the roller skating shoe of the present invention.

FIG. 4 is a diagram showing a relationship between a kicking force, a propulsion force, and a kicking outward force of a conventional roller skating shoe.

FIG. 5 is a diagram showing an example in which a one-way clutch is used for a rear wheel.

FIG. 6 is a view showing a rear wheel portion as viewed from below.

FIG. 7 is a sectional view showing a one-way clutch.

FIG. 8 is a partial sectional view showing a one-way clutch.

FIG. 9 is an axle sectional view.

FIG. 10 is a side view showing an example of a conventional blade-type roller skate.

FIG. 11 is a side view showing an example of a conventional roller skate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Shoe part 2 ... Support frame 3 ... Wheel 3a ... Front wheel 3b ... Rear wheel 4 ... Guide 5 ... Hinge 6 ... Wheel frame 6a ... Hole 7 ... Wheel 11 ... One-way clutch 15 ... Wheel bearing roller 21 ... Clutch outer ring DESCRIPTION OF SYMBOLS 22 ... Clutch inner ring 23 ... Clutch spring 24 ... Clutch groove 25 ... Engaging member 26 ... Outer ring mounting hole 28 ... Axle bearing 30 ... Conventional blade type roller skate 31 ... Small hard wheel 32 ... Stopper 40 ... Conventional roller skate 41: Small hard wheel 42: Stopper

Claims (3)

[Claims] A shoe frame; a support frame provided on the shoe frame; and a wheel frame provided on the front side of the support frame so as to swing freely and supporting wheels. A roller skating shoe characterized in that a one-way clutch for regulating the rotation of the wheel only when a force for rotating the wheel backward acts on the shoe is provided. 2. The roller skating shoe according to claim 1, wherein said wheels are arranged in front of and behind said shoe portion. 3. The roller skating shoe according to claim 1, wherein said support frame is detachable from said shoe portion.