JPH07329863A - Skate - Google Patents

Abstract

PURPOSE:To provide a skate on which a skater can skate faster than walking by pedal operation and does not get tired so much even at the time of skating for a long period of time. CONSTITUTION:A driving belt 17 connected to a sliding pedal 4 is wound around a rear pulley 14r connected to a rear wheel 3r through a one-way clutch 15 so as to drive to accelerate the rear wheel 3r by backward movement of the sliding pedal 4 free to slide along a rectilinear guide groove 22 in the longitudinal direction formed on a frame 2 by installing the rear wheel 3r on the rear end of the frame 2 with a front wheel free to steer on its front end.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skate which is driven by the operator's pedals to drive the rear wheels and runs as a practical means of transportation in a wide premises such as sports, leisure, airports and factories. Also relates to skates that can be easily used.

[0002]

2. Description of the Related Art A skate whose rear wheels are driven by a pedal operation of an operator is disclosed in, for example, Japanese Utility Model Publication No. 56-4702.
It is already known as disclosed in Japanese Patent No. 0.
The disclosure discloses that a pedal arm is pivotally supported on a frame so that the pedal arm can pivot between an upright position and a rear fall position, and an operator on the frame kicks the pedal arm backward. The rear wheel is driven by repeating.

[0003]

However, in the above-mentioned conventional skates, since the operator has to move the foot up and down largely in order to repeatedly operate the pedal arm, the change in the potential energy of the foot is large. In addition, the trajectory of the foot kicking the pedal arm is a circular arc, which makes it feel uncomfortable, which makes it easy to get tired when traveling for a long time.

The present invention has been made in view of the above circumstances, and has little change in the potential energy of the foot when the pedal is operated and has good operability, so that the user will not be tired even when running for a long time. The purpose of the present invention is to provide skates applicable not only for leisure but also for practical transportation.

[0005]

In order to achieve the above object, the present invention provides a sliding pedal on a frame having front wheels and rear wheels mounted on its front and rear ends, and a sliding pedal which extends in the front-rear direction of the frame. Support so that it can slide back and forth along
Between the sliding pedal and the rear wheel, a speed increasing drive device for increasing the speed of the rear wheel by the backward movement of the sliding pedal is interposed.

[0006]

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

First, the first embodiment of the present invention shown in FIGS. 1 to 5 will be described. 1 and 2, a skate 1 with a handle includes a frame 2 long in the front-rear direction, a single front wheel 3f attached to the front end of the frame 2, and a pair of left and right rear wheels pivotally supported at the rear end of the frame 2. 3r, 3r, a sliding pedal 4 supported by the frame 2 so as to be slidable back and forth for driving the rear wheels 3r, 3r, and a pair of left and right steps 5, 5 provided at the front part of the frame 2.

The steering stem 7 of the front fork 6 supporting the front wheel 3f has a hinge 8 at the front end of the frame 2.
A steering wheel 7 is rotatably supported by a head pipe 9 connected to the steering pipe 7, and a rod-shaped handle 10 is attached to the upper end of the steering stem 7. Therefore, the front wheel 3f has the handle 1
Steering is possible with 0 operation. When the front fork 6 is not used, it can be folded backward around the hinge 8 as shown by the chain line.

Further, each step 5 is attached to the lower part of the side surface of the frame 2 via a hinge 11, and is rotated to a use position which extends to the outside of the frame 2 and a folding position which stands up so as to overlap the side surface of the frame 2. Is ready to go.

As shown in FIGS. 3 to 5, the frame 2 is formed into a hollow rectangular tube by joining a pair of left and right frame halves 2a and 2b, and the rear wheels 3r and 3r are provided at both ends. The fixed axle 12 is supported on both side walls of the frame 2 via bearings 13, 13. A toothed rear pulley 14r having a diameter smaller than that of the rear wheel 3r in the frame 2 is attached to the axle 12 via a one-way clutch 15. The one-way clutch 15 is engaged when the rear pulley 14r is normally rotated. It becomes a non-engaged state at the time of reverse rotation.

A toothed front pulley 14f is supported on both side walls of the front portion of the frame 2 through a support shaft 16, and the toothed drive is suspended between the front pulley 14f and the rear pulley 14r. The sliding pedal 4 is coupled to the lower running portion 17b of the belt 17 as follows.

That is, the sliding pedal 4 is formed in a rectangular tube shape surrounding the frame 2 by connecting a pair of left and right pedal halves 4a, 4b with a plurality of bolts 18, 18. At that time, a belt anchor 20 projecting into the frame 2 through a long hole 19 in the front-rear direction opened in the bottom wall of the frame 2 is sandwiched between the pedal halves 4a and 4b, and a part of the bolt 18 Will be tightened together. The belt anchor 20 is also divided into two parts on the left and right, and the lower running portion 17b of the drive belt 17 is provided in the toothed groove 21 formed at the upper end of each of the belt anchors.
The belt anchor 20 is coupled to the drive belt 17 by engaging with. The belt anchor 20 contacts the front and rear end walls of the elongated hole 19 to restrict the sliding stroke of the sliding pedal 4.

Linear guide grooves 22, 22 extending in the front-rear direction are formed on both left and right side surfaces of the frame 2,
A pair of front and rear engaging with these guide grooves 22, 22, respectively.
Support shafts 24, 24; 24, 2 in which two pairs of left and right rollers 23, 23; 23, 23 project from the left and right side walls of the sliding pedal 4.
It is supported by 4. A guide pulley 25, which receives the lower traveling portion 17b of the drive belt 17 immediately before the rear pulley 14r, is rotatably supported by the frame 2 in a rotatable manner. As a result, the lower running portion 17b of the drive belt 17 is held between the front pulley 14f and the guide pulley 25 in parallel with the sliding path of the sliding pedal 4, that is, the guide grooves 22 and 22.

In the above description, the drive belt 17, the front and rear pulleys 14f and 14r, and the one-way clutch 15 constitute the speed increasing drive device 26 which accelerates and transmits only the rearward movement of the sliding step 4 to the rear wheel 3r. To do. Then, a return spring 27 for urging the drive pedal 4 forward is provided on the proper position of the speed increasing drive device 26, that is, on the front pulley 14f in the illustrated example, as needed.

As shown in FIG. 4, band brakes 28, 28 are attached to the rear wheels 3r, 3r, respectively, and these are operated by a brake lever (not shown) provided near the grip of the handle 10.

Next, the operation of this embodiment will be described.

In using the skate 1 with a steering wheel, as shown in FIG. 1, the operator first grips the steering wheel 10, rides on one step on the same side as the step 5, and slides the other foot on the sliding pedal. Place on top of 4. Then, if the sliding pedal 4 is kicked backward, the rollers 23, 23;
When 3 slides in the guide grooves 22 and 22 of the frame 2, the sliding pedal 4 slides rearward along a constant linear path, and the drive belt 17 is moved to the left in FIG. 3 via the belt anchor 20. Since it rotates around, the rear pulley 1
4r is driven in the normal rotation direction, and its driving torque is accelerated and transmitted to the axle 12 and both rear wheels 3r, 3r via the one-way clutch 15 to drive them, thereby moving the skate 1 forward.

Next, when the sliding pedal 4 is moved back forward,
This time, the rear pulley 14r rotates in the reverse direction, but the one-way clutch 15 is disengaged. Therefore, the reverse rotation of the rear pulley 14r is not transmitted to the rear wheel 3r, and the rear wheel 3r is the entire skate 1
Continues to rotate forward due to the inertial force of. By repeating such pedal operation, the skates 1 can be continuously run at a speed higher than the walking speed.

At this time, in particular, the sliding pedal 4 reciprocates on a straight line path in the front-rear direction, so that one foot operating the same needs only to move in a substantially horizontal direction, and therefore the potential energy change of the foot is zero. Or, since there are few, it is hard to get tired even for long-term operation. Further, there is almost no change in the potential energy, even when the rear wheel 3r rotates faster than the drive speed of the rear pulley 4r on a downhill or the like, and the rear kick of the sliding pedal 4 becomes idling. Therefore, the impact force received at the rear sliding limit can be suppressed to be relatively small.

Further, since the sliding pedal 4 moving on the straight path along the front-rear direction can be given a larger ergonomical stroke than in the case of the rotary pedal, the transmission system can be provided. The transmission efficiency can be improved by making it simple.

Further, the positional relationship in the height direction between the sliding pedal 4 that moves substantially horizontally and the fixed step 5 can be set to an ergonomically favorable relationship, for example, to the substantially same level.

FIG. 6 shows a second embodiment of the present invention.
Above the axle 12, the rear pulley 14r is connected to the intermediate shaft 29.
A large-diameter drive gear 30 supported by the rear pulley 14r and a small-diameter driven gear 31 connected to the axle 12 via a one-way clutch 15 are meshed with each other to engage the drive belt 17 The structure is the same as that of the previous embodiment except that a sliding pedal (not shown) is connected to the upper traveling portion 17a. In the figure, portions corresponding to those of the previous embodiment are designated by the same reference numerals.

According to this embodiment, the rearward movement of the sliding pedal allows the drive belt 17 to rotate clockwise in the figure to drive the rear wheels 3r, 3r at an increased speed. Drive belt 17 to drive axle 12
Since the frame 2 can be arranged at a higher position, the frame 2 can be formed so as to sufficiently secure its minimum load clearance.

FIG. 7 shows a third embodiment of the present invention.
The structure is the same as that of the first embodiment except that the frame 2 is tilted in the same direction so that the sliding path of the sliding pedal 4 tilts slightly backward and downward. The same symbols are attached to the portions corresponding to.

According to this embodiment, when the sliding pedal 4 reciprocally slides, the sliding pedal and the foot are accompanied by a slight change in the potential energy, but when kicked rearward, the potential energy is added and strong. The driving force can be exerted.

FIG. 8 shows a fourth embodiment of the present invention. A pair of left and right pedal drive systems including a sliding pedal 4, a drive belt 17, a front pulley 14f, a rear pulley 14r, and a one-way clutch 15 are arranged.
14f are interlocked by reversing gears 32 and 33 so that they can be driven in opposite directions. The rest of the configuration is the same as that of the first embodiment, and in the figure, parts corresponding to those of the first embodiment are designated by the same reference numerals.

According to this embodiment, by putting both feet on the left and right sliding pedals 4 and 4 and alternately kicking them backward,
Since the rear wheels 3r, 3r can be accelerated, the number of times of driving can be doubled and the skates 1 can be run at a higher speed.

In each of the above embodiments, various design changes can be made without departing from the gist of the present invention. For example, in the fourth embodiment of FIG. 8, the reverse gears 32, 33
Alternatively, the left and right sliding pedals 4 and 4 can be operated and stopped independently of each other. In each embodiment, the front and rear wheels 3f and 3r may be single wheels, or the front wheels may be two wheels and the rear wheels may be single wheels.
Further, the steering wheel 10 system may be eliminated so that the driver can steer by moving the weight of the operator.

[0029]

As described above, according to the present invention, a sliding pedal is reciprocally slid along a straight path extending in the front-rear direction of the frame on a frame having front and rear wheels attached to the front and rear ends. Since a speed-increasing drive device capable of increasing the speed of the rear wheel by the rearward movement of the slide pedal is interposed between the sliding pedal and the rear wheel, the operator puts it on the sliding pedal. The rear wheels can be reciprocally moved along a straight line path in the front-rear direction, that is, the change in the potential energy of the foot is zero or extremely small, and the rear wheel can be accelerated by pedal operation that is easy to operate, and therefore, rather than walking. It can be used not only for sports and leisure, but also as a practical means of transportation, even when traveling at high speed for a long time.

[Brief description of drawings]

FIG. 1 is a side view of a skate according to a first embodiment of the present invention.

FIG. 2 is a plan view of FIG.

3 is an enlarged sectional view taken along line 3-3 of FIG.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

5 is a sectional view taken along line 5-5 of FIG.

FIG. 6 is a vertical sectional side view showing a rear wheel drive unit of the skates according to the second embodiment of the present invention.

FIG. 7 is a side view of the skates according to the third embodiment of the present invention.

FIG. 8 is a perspective view showing a double sliding pedal type drive device for skates according to a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Skate 2 Frame 3f Front Wheel 3r Rear Wheel 4 Sliding Pedal 22 Guide Groove (Straight Path) 26 Speed-up Drive

Claims (1)

[Claims] 1. A sliding pedal (4) is attached to a frame (2) having front wheels (3f) and rear wheels (3r) attached to its front and rear ends.
Is supported such that it can reciprocate along a straight path (22) extending in the front-rear direction of the frame (2), and a sliding pedal (4) and a rear wheel (3r) are provided between the sliding pedal (4). The skates characterized by having a speed increasing drive device (26) for increasing the speed of the rear wheels (3r) by the rearward movement of 4).