JPS5836989B2 - roller skating - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to sports/gaming and recreational equipment, and more particularly to roller skates.

The present invention can be used as a vehicle for both adults and children to travel together in urban and off-site recreational areas and on asphalt or similar paved surfaces.

As science and technology have advanced at an accelerating pace, modern people's lifestyles have reduced the use of their legs, and this has gradually begun to have a wide-ranging negative impact on the physical development and health of modern people. There is.

It is for this reason that in many countries, different age groups have become interested in portable means of transportation powered by human muscle power.

Roller skates in which each skate is detached from a base plate having a roller attached thereto are known in the art (eg, U.S. Pat. No. 3,684,305).

In this known roller skate, a support lever is attached to the base plate, which also functions as a foot support, and the lower end of this support lever pivots about an axis parallel to the axis of rotation of the roller. is attached to.

The skater can propel himself with torque obtained by suddenly shifting his center of gravity or by tilting a lever held at the top end.

However, the running speed thus obtained is slow and requires additional drive means.

Also known are roller skates as shown in US Pat. No. 3,392,986.

Each skate consists of a base on which rollers are mounted and drive means for rotating the rollers by stepping down.

The base of each skate acts as a foot support and includes a pair of carrier members at each end of the base extending downwardly therefrom.

Each pair of carrier members is provided with laterally aligned vertical grooves in which the wheel axle is rotatably received and linearly movable therealong.

Additionally, the base is buttoned with two downwardly extending rack members disposed between each pair of carrier members and having toothed edges.

The toothed edge then faces the adjacent axle for meshing engagement with the gear portion of the associated axle.

When the base is moved downwardly, the wheels of the skate, which are rigidly coupled to the axle, come into engagement with the support surface, and this interlocking engagement causes the wheels to rotate and propel the skate.

When the base reaches its lowest position, the axle is disengaged from the toothed rack member because the rack member is provided with a recessed portion that allows free rotation when the gear portion of the shaft is engaged.

This allows the wheels or rollers to rotate freely together with their respective axles in a direction of rotation that corresponds to the direction of travel.

The driving force of skates, intended primarily for use as walking dolls or whirling toys, is hardly sufficient to transmit significant torque and obtain the necessary transmission ratios.

Therefore, with this skate, it is not possible to obtain a propulsion speed that is satisfactory for humans.

Roller skates with a drive unit that can be propelled by a human being are also known (for example, Soviet Inventor's Certificate No. 28428, filed on December 14, 1931,
(Refer to publication November 30, 1932).

In this case, each skate has a base with rollers,
a foot support mounted for rotation about an axis parallel to the axis of rotation of the roller; and a drive mechanism consisting of an overrunning clutch and a spring-loaded flexible link or cable; A cable is connected at one end to one of the rollers via the overrunning clutch and at the other end to the foot support to rotate the roller in response to foot depression.

The base of the skate is made as a long frame, and the upper part of this frame is covered with a stationary plate.
Furthermore, two pairs of rollers are connected to the frame by bearings.
The rollers of each pair are supported and rigidly connected by two common axles.

The rear end of the base is separated from the foot support with a drive, which includes a winding drum and an overrunning clutch, generally in the form of a ratchet and pawl mechanism.

The winding drum passes through an overrunning clutch,
It is connected to the rear and front roller shafts by a flexible transmission mechanism.

The foot support is made as a plate pivotally connected to the stationary plate and provided with means for fixing or clamping the heel part of the foot.

The rear end of the foot support is connected to the winding drum by a spring-loaded flexible link on the side of the drive unit.

The speed that can be achieved with skates of such construction is inherently limited by the foot drive capabilities of the skate.

In addition, such roller skates force the skater to use muscle strength to increase running speed, especially when the skater runs in various power consumption modes, such as accelerating rapidly or climbing slopes. This is particularly problematic.

Since the transmission ratio of the drive means has been deliberately lowered to give more leeway to the skater's ability, the final transmission ratio determining factor has also been lowered, reducing the maximum speed of steady motion that the skater can obtain. .

There are other disadvantages to roller skates of such construction, such as the use of two pairs of rollers or wheels on each skate, which makes the construction heavy and runs on a laterally inclined support surface. It is inconvenient for

A further disadvantage of such a construction is that the skater's feet must be firmly fixed to the skates, and the skates cannot be used with footwear of different shapes and sizes that are worn every day.

The object of the invention is to provide a roller skate with drive means capable of increasing the propulsion speed.

This purpose consists of a base in which each skate of the pair has a roller or wheel disposed therein, and a foot support pivoted relative to this base so as to be able to pivot about an axis parallel to the axis of rotation of the rollers. and a drive means comprising a spring-loaded flexible link or cable, one end of which is connected to one of the rollers via an overrunning clutch and one end of which is connected to one of the rollers. A roller skate is connected to a support so as to give rotation to the corresponding roller as the foot is stepped down, and one end is connected to each skate of the roller skate through an overrunning clutch and the overrunning clutch. additional or auxiliary drive means comprising a spring-loaded flexible link or cable connected to the roller, the auxiliary drive means having an axis substantially parallel to the axis of rotation of the roller. The support lever is pivotally mounted relative to the base, and a support lever accommodates the slidable member for reciprocating movement within the support lever, and the other end of the flexible cable of the auxiliary drive means is connected to the support lever for reciprocating movement within the support lever. This can be achieved by a roller skate characterized in that it is coupled with a movable member to impart rotation to the corresponding roller by the force of the skater's hands.

The support lever is constructed in a nested manner with three links, the middle link of which is the above-mentioned slidable member, and a left hand grip or handle is provided at the upper end of this middle link. That's a good thing.

It is also preferred that the upper end of the support lever be provided with means for fixing or clamping it to the skater's clothing.

By using a roller skate with an auxiliary human power drive as shown here, torque can be added to the rollers to increase propulsion speed.

At the same time, since one driving force of the skate is performed simultaneously by both hands and feet of the skater, the force exerted by both feet on the foot support of each skate is greatly increased.

According to the present invention, a support lever integrated into the structure of the roller skate serves to maintain the skate in a vertical position and provides lateral stability to the skate.

This makes the use of the skates much more convenient as it eliminates the need to securely fasten both feet to separate foot supports and allows the use of any type or size of footwear.

Arranging the support levers with their links in a telescoping manner so that they can move or slide freely along the longitudinal axis, and using the upper part of the intermediate link as a grip, the flexural rigidity of the links increases. is sufficiently high during forward motion of the skater despite repeated vibrations to promote reliable functioning of the lever.

By providing a clamping means for fixing the upper end of the support lever to the skater's clothing, e.g. the waist or armpit area, the upper end of the lever can be easily and quickly clamped, thereby leaving both hands free and relaxed. or can carry hand-driven grips or luggage.

According to the roller skates with the structure proposed here,
It is possible to modify the natural walking motion and thereby even out the distribution of the physical energy exerted by the skater's muscles.

As a result, the therapeutic effects associated with physical training and roller skating have been greatly improved, breaking the mold of today's sedentary lifestyle and improving the health of modern people. This can increase opportunities for interaction with other people.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, the roller skate according to the invention has front and rear rollers 3,
4, each comprising a carrier element or base 1 which pivots on the carrier element 4.

A foot support 6 is pivotally connected to the pace 1 by an axle 5 parallel to the rotation axes of the rollers 3, 4.

The outline of the legs is shown in Figure 1 with dashed lines.

In the illustrated example, the running support 6 is pivoted about the axis of the front roller 3.

On the upper surface of the foot support 6, there is a rubber plate 7 with unevenness or grooves.
A toe cover 8 is provided to receive and loosely wrap the toe portion of the foot.

Each roller has a drive mechanism 9 which cooperates with a spring-loaded flexible link or cable 10, one end of which cooperates with one of the rollers 3 or 4.

In this embodiment of the roller skate according to the invention, the cable 10 is connected to the rear roller 4 and the opposite end of the cable is linked to the foot support 6.

The drive mechanism 9 is for rotating one of the rollers 3 or 4 in response to the muscular force exerted by the skater's foot.

Each skateboard has an auxiliary drive mechanism 11 comprising a spring-loaded flexible link or cable 12 connected at one end to one of the rollers 3 or 4.
Contains.

In the example of the invention, this cable 12 is connected to the front roller.

A support lever 13 is pivotally attached to the base 1 about an axis parallel to the rotation axes of the rollers 3 and 4, and this support lever 13 accommodates a sliding member 14 therein so as to be able to reciprocate. .

The other end of the flexible link 12 of the auxiliary drive mechanism 11 is connected to this sliding member 14 .

The auxiliary drive mechanism 11 is for rotating one of the rollers 3 or 4 in response to muscular forces applied by the skater's hands.

The base 1 has grooves 15 (FIG. 2) at both ends thereof, in which the rollers 3, 4 are accommodated.

A groove 16 wider than the width of the base 1 is provided at one end of the foot support 6, and this end of the foot support is attached so as to wrap around the base 1.

Referring to FIG. 3, the drive mechanism 9 has a shaft 17 rotatably attached to the base 1 parallel to the rotation axes of the rollers 3 and 4.

A drum or pulley 18 is provided on the shaft 17.
One end of the flexible cable 10 is fixed onto this pulley 18, and this cable is wound around it.

The drive mechanism 9 also has a projection or rack 19 formed integrally with the foot support 6.

The other end of the cable 10 is connected to an overrunning clutch 20 (FIG. 4) provided on the rear roller 4.

Cable 12 of auxiliary 7 drive mechanism 11, front roller 3
is connected to the overrunning clutch.

Overrunning clutch 20, roller 4...
The pusher 21 has a pusher 21 fixed to the pusher 1, which is provided with a recess in which a pivotably mounted pawl (not shown) is accommodated.

This pawl is designed to unidirectionally engage gears arranged inside the ratchet 22.

The outer side of the ratchet 22 is provided with an annular groove 23 for accommodating a leaf spring 24, one end of which is attached to the ratchet 22, and the other end is attached to the base 1 of the skate.

The ratchet 22 is further provided with an annular groove 25 in which the cable 10, one end of which is fixed to the ratchet 22, can be wound several times.

The other end of cable 10 is secured within an annular groove 25 (FIG. 5) of pulley 18.

The shaft 17 is provided with a pinion 27 so that the teeth of the pinion can mesh with the teeth of the rack 19 (FIG. 3).

This pinion 27 (Fig. 5) and pulley 18 are connected to the shaft 17.
Preferably, the shaft is formed integrally with the base 1 and the shaft is supported on the base 1 by a bearing 28.

The lever 13 of the auxiliary drive mechanism 11 is attached to the base 1 in such a way that it can be rotated about one axis parallel to the rotation axes of the rollers 3, 4 via a tube element 29 fixed to the base 1. It is connected to the other side.

In the embodiment shown, the lever 13 has a telescoping configuration, namely three links 30 (FIG. 6), 31 and 3.
2, the middle link is actually the sliding member 14, and its upper end 33 is designed to be held by hand.

Therefore, for this purpose, the upper end has a bulged knob-like shape and has projections and depressions to prevent slipping.

A hook 34 is attached to the lower end of this link 31, and the flexible cable 12 is connected to this hook.

A hollow screw 35 with holes is attached to the lower end of the link 30, and a spring 36 is interposed between the end surface of the link 31 and the screw 35.

Installed inside the tube element 29 are rollers 37 that guide the flexible cable 12 .

The upper end of the support lever 13 is provided with a device for attaching it to the skater's clothing, this device generally consisting of a clamp 38.

This clamp 38 (FIG. 7) is for fixing the upper end of the lever 13 to the skater's torso.

The roller skate according to the invention operates as follows.

As the skater shifts his weight from one skate to the other, the skate that is not carrying his weight will roll freely on the ground.

When the skater applies his weight to the foot support 6 (FIGS. 1 and 3), the foot support 6 performs a working stroke by pivoting about the axle 5.

In this way, the torque is transmitted from foot support 6 to pinion 2.
7 (FIG. 5) to the shaft 17 and from this shaft 17 via the pulley 18 and the flexible cable 10 to the spring return ratchet 2.
2 (FIG. 4) and the rear roller 4.

When the foot support 6 is stepped up, i.e. during an idle stroke, or when the skater's weight is transferred to the other skate, the foot support 6 is moved by the force of rotational inertia due to the action of the spring-loaded flexible cable 10. to return to the initial position.

Auxiliary drive mechanism 11 (Figure 1) to increase propulsion speed
When using this, the skater's hand strength is used.

When the bulge or handle 33 (FIG. 3) is moved upwardly, tension is exerted on the flexible cable 12, imparting additional torque to the front roller 3 (FIGS. 1 and 2).

When the knob 33 (FIG. 6) is loosened, the link 31 descends and returns to its initial position, and the spring 36 cushions the impact.

This causes the cable 12 to be wound around the ratchet of an overrunning clutch (not shown), while the front roller 3 continues to rotate freely due to its inertia.

To apply braking to roller skates, you simply drag one of your feet over the support surface, and your feet are attached to the foot support 6 (Figure 7).
can be easily removed from the

If desired, the skater may first remove the skates and remove the clamps 38 from their clothing.

[Brief explanation of the drawing]

FIG. 1 is a side view of a roller skate according to the present invention with the skater's feet represented by dashed lines; FIG. 2 is a plan view of the skate according to the present invention; FIG. 3 is a line taken along lines III--
[Cross-sectional view of [] FIG.
5 is a sectional view taken along line V-■ in FIG. 1; FIG. 6 is a side sectional view of the support lever of the roller skate according to the present invention; FIG. 1 is a drawing showing a person running on roller skates according to the present invention. 1...Base, 3...Front roller,
4... Rear roller, 6... Leg support, 9... Drive means, 10... Flexible cable with 1,000 drive stages 9, 11 ... Auxiliary drive means, 12 ... Flexible cable of the auxiliary drive means 11, 13 ... Support lever, 14 ...
- Sliding member, 20... Overrunning clutch, 30. 31 and 32... Support lever link, 33... Upper end of link 31.

Claims (1)

[Claims] 1. Each skate has a base 1 in which rollers 3 and 4 are arranged, and rotates about one axis parallel to the rotation axis of the rollers 3 and 4 with respect to the base 1. It consists of a foot support 6 mounted in such a way that the drive stage 9 includes a spring-loaded flexible link or cable 10, one end of which is connected to the roller 4 via an overrunning clutch 20. , and the other end is connected to the foot support 6 to give rotation to the corresponding roller 4 in response to the stepping down of the foot. 2, an additional or auxiliary drive is provided from an overrunning clutch 20 and a spring-loaded flexible link or cable 12 connected at one end to one of the rollers 3 through the overrunning clutch 20. Sendan 1
1 is provided, and the auxiliary 1 drive stage 11 is attached to the base 1 so as to pivot instead of the axis substantially parallel to the rotation axis of the roller 3 or 4,
A sliding member 14 is housed so that the support lever 13 can reciprocate within the support lever, and the other end of the flexible cable 12 of the auxiliary drive stage 11 is connected to the sliding member 1.
A roller skate characterized in that the rollers 3 are connected to the rollers 3 and 4 and rotate the corresponding rollers 3 by the force of the skater's hands. 2. The support lever 13 is constructed in a nested manner by three links 30, 31 and 32, of which the middle link 31 is used as the sliding member 14, and the middle link 31
2. The roller skate according to claim 1, further comprising a grip or handle provided at the upper end portion 33 of the roller skate. 3. The roller skate according to claim 1 or 2, wherein the upper end of the support lever 13 is provided with means for fixing or clamping the upper end to the skater's clothing.