CN1960905A - Foot-propelled wheeled hobby and/or sport device - Google Patents

Abstract

The invention relates to a foot-propelled wheeled hobby and/or sport device which has a wheel (1) situated between two side-plates (2; 3), and the side-plates (2; 3) are suspended on the axle (X) of the wheel (1). Foot-boards (5) situated below the axle (X) of the wheel (1). Foot-boards (5) situated below the axle (X) of the wheel (1), protruding outwards are connected to the side-plates (2; 3). In the course of the appropriate use of the device (I; II) the side-plates (2; 3) project over the knee of the user (12) standing on one or both of the foot-boards (5), providing a supporting surface (a) for the knee. The invention is based on that at a certain distance (e) behind the wheel (1) - with respect to the traveling direction - a structure is arranged in the range of the track of the wheel (1) ensuring stabilization against tilting, and in order to relieve the knees of any load the side-plates (3) are constructed with a height (L) ensuring a supporting surface for the user's (12) thigh.

Description

Foot-propelled wheeled hobby and/or sports devices

technical field

The present invention relates to foot-propelled wheeled hobby and/or sports devices.

Background technique

Popular devices for people to spend their spare time exercising are various foot-propelled structures that roll on wheels, and the most popular of them is the traditional bicycle that sits on the saddle and is propelled by pedals, which has been used several times around the world. ten years. In addition to bicycles of relatively complex construction and larger size, a variety of other simpler and smaller foot-propelled wheeled hobby devices are known for sport-like hobby activities, such as bicycles worn on the user's feet Quad skates or two-wheeled scooters that also have a handlebar similar to a bicycle handlebar and a long, narrow Stand on the board with one foot while pushing the scooter with the other. Another widely used device is the skateboard, which has four small diameter wheels, the user stands on the skateboard and propels the skateboard through a motion similar to pushing a scooter, and on an inclined surface, the user's two Both feet stand on the board and use his/her body to make the board roll in balance. Finally we mention a known foot propelled sports or hobby device which has a single wheel with spokes, similar to a bicycle wheel, but in order to use the device the individual needs to have balancing skills which many people do not have, The device has therefore not become a widely available item, not even when it is stabilized in form by means of servo motors, which significantly increases the cost of manufacture.

With regard to the skateboards mentioned above, it must be pointed out that although they are a fairly popular hobby device, they are rather slow and not very maneuverable due to the relatively high drag of the four small diameter wheels. Also, skateboards can also be criticized due to safety aspects, because when a user falls or falls off the exercise device for some other reason, the device can roll off and cause an accident, for example if the device slides away on a sloped road.

No. WO2004/000635A1 published on December 31, 2003, International Patent Application No. PCT/HU2003/000043 discloses a foot-propelled wheeled hobby and/or sports device with foot pedals and two side Wheels between the plates suspended on the axles of the wheels; footrests located below the axles of the wheels and protruding outwards are attached to the side plates; when the device is properly used, the side plates are passed over to stand on one or The user's knees protrude on both footrests, thereby ensuring a bearing surface for the knees.

The device allows propulsion and locomotion similar to using a skateboard. The user of the device stands with one foot on the footrest, thereby imparting an eccentric load on the device, and he/she pushes the device by pushing the other foot off the ground, and advances by repeating these movements alternately with the feet, That is, alternately standing on the pedals and pushing off the ground on both sides. By the friction generated between the knee - the bottom of the leg - and one of the side plates; i.e. the horizontal force due to the moment produced by the eccentric load during the alternating action of standing and pushing; Compound action between user's feet on eccentrically loaded pedals.

Although the device is faster and more maneuverable than a skateboard, there is a danger of tipping forwards or backwards, especially when pushed hard to achieve high speeds, which requires considerable skill from the user. Another problem may be that the frictional connection of the bottom of the leg and the knee resting on the side panels would place a greater load on the user's knee.

Contents of the invention

The task to be solved by the present invention is to improve the aforementioned foot-propelled wheeled hobby and/or sports device in order to increase its stability and safety.

The invention is based on the realization that the risk of tipping forward or backward can be eliminated, if the device has a stabilizing device, preferably a satellite wheel with a diameter significantly smaller than the wheel, which faces the direction of travel behind the wheel, or in the Given cases even in front of the wheel, in the track of the wheel, mounted on at least one and preferably both side plates and resting on the ground continuously or periodically when in operation. We have also realized that the connection between the user and the side panel can be more stable when the side panel has a thigh support surface instead of a knee support surface or a thigh support surface in addition to the knee support surface.

According to the above knowledge, according to the invention, said task is solved by a foot-propelled wheeled hobby and/or sports device having a wheel located between two side panels suspended on the axles of the wheels; Footrests located under the axle of the wheels and protruding outwards are attached to the side panels; during proper use of the device, the side panels protrude over the knees of a user standing on one or both of the footrests, Thereby a bearing surface for the knees is provided; and the aforementioned hobby and sports device is characterized in that at a determined distance behind the device with respect to the running direction there are structures ensuring stability against tilting within the range of the wheel tracks. Preferably, the structure ensuring stability is a satellite wheel. In practice, the stabilizing structure is connected so as to protrude rearwardly to one or more cantilever-like retaining members mounted on or forming part of the side panels. It is also preferred that the satellite wheel is connected to the holding part belonging to the side plate via a wheel-fork by means of an inserted rotatable connection part. In general, it is preferred that the stable structure is such that the lowest point of the satellite is in or about the same plane as the lowest point of the wheel.

According to a different criterion of the invention, at a certain distance in front of the device with respect to the direction of travel, there is a second structure, preferably a satellite wheel, which ensures stability against tilting, within the range of the wheel track. In this case actually in the normal operating state of the device, the second structure ensuring stability is preferably a satellite wheel which is located at a defined distance above the ground.

According to another constructional example, the side panels are formed with a height that guarantees the bearing surface of the user's thighs; in fact the side panels should protrude a certain distance beyond the highest point of the wheel.

Description of drawings

The invention will be described in detail below with reference to the accompanying drawings, which contain preferred structural examples of hobby and sports equipment. In the attached picture:

Fig. 1 is the side view of the structure of device;

Fig. 2 is the view seen from arrow A direction shown in Fig. 1;

Figures 3 and 4 illustrate the use of the device;

Fig. 5 is a side view of another structure of the device.

Detailed ways

The overall hobby and/or sports device indicated by the reference numeral 1 in FIGS. 1 and 2 has a wheel 1 whose major dimensions, such as its diameter and rim width, are practically the same as those of an ordinary standard racing wheel. On the axis X of the wheel 1 (indicated only by dotted lines or dots in the figure), the side panels 2 are suspended on both sides and project beyond the highest point of the wheel 1 at the top and terminate at a point above the lowest point of the wheel 1 The distance h is determined at a distance h above the ground t on which the wheel 1 rests when the wheel 1 is in use. The length of the side panel 2 projecting beyond the wheel 1 should be determined such that it provides a suitable support location for the inner surface of the user's 12 knee, which is surrounded in Figure 1 by the dotted line filled with dots and marked with the reference letter a. The above-mentioned lower distance h must be determined in such a way that when the device 1 is used, the footrest 5, which is formed in one piece with the side panel 2 and protrudes outwards on both sides from the lower rim of the side panel 2, is located as close to the ground as possible. t, so that the distance H of the footrest 5 measured from the axis X can be chosen to be as large as possible, so that the footrest 5 is located exactly above the ground. The greater the distance H, the more stable the device 1 is in use. Due to this construction, as shown in FIG. 2 , the footrest 5 is positioned outside the plane of the wheel 1 , practically perpendicular to this plane. The side panels 2 are located at the smallest possible distance from the side surfaces of the wheel 1 . In addition to ensuring the bearing surface a, the function of the side plate 2 is to cover the wheel 1 as a side cover, thereby partly preventing the wheel 1 from coming into contact with the legs, which could cause injuries, and partly also providing the bearing surface of the legs, so as to ensure that it can exert some lateral force. pressure.

The stability of the whole device 1 is also increased by being clamped and supported at the top of the side panels 2 with the curved connecting ribs 4 covering the upper extent of the wheel 1. The side panels 2 are constructed so that they face the running direction of the device 1 as indicated by the arrow c in FIG. 2a, so the whole device 1 becomes lighter and the front and rear of the wheels are not covered. Obviously, the wheel 1 also protrudes from between the side plates 2 at the bottom and rests on the ground t.

In the structural example of FIGS. 1 and 2, the side plate 2 has a bracket holding part 8 protruding rearward with respect to the running direction c, and the wheel fork 9 protruding obliquely rearward and downward is installed on the On the bracket holding part 8, the connecting part 11 can rotate around a vertical axis, and the wheel fork 9 holds the satellite wheel 6 via the axis y1, and the satellite wheel 6 is located behind the wheel 1 on the same or actually the same trajectory as the wheel; because The running direction of the rotatable connecting part 11 changes freely during running, that is, it changes as the direction of the wheel 1 changes. During operation, a small load is transmitted to the rear satellite wheel 6, which can roll continuously on the ground together with the wheels. Its function is not to carry the weight of the user, but to control or stabilize the user relative to the wheel. In the running direction shown by the arrow c—the forward direction—it tilts forward or backward. The minimum distance between the wheel 1 and the running edge of the satellite wheel 6, marked by the reference letter e in Figure 1, must be determined such that it guarantees complete stability against tipping, while it necessarily increases the rolling resistance, because the smaller the wheel The greater the resistance, the resistance is inversely proportional to the length of the arm.

The use and working principle of the device 1 of FIGS. 1 and 2 are described below with reference to FIGS. 3 and 4 .

The device 1 is positioned between the legs of the user 12 during the propulsion phase ( FIG. 3 ) and during the free running phase ( FIG. 4 ). When starting out, the user 12 holds the device 1 between his/her legs and keeps it there in a standing position during use. In a first step, the user 12 stands with one foot on a footrest 5, so that the bearing surface a ( FIG. 1 ) pushes against the inner surface of the knee of that leg, since the user exerts an eccentricity on the wheel 1 The load (beside the outer wheel in the plane of wheel 1 ) thus creates a horizontal force on the knee through the bearing surface a, which then pushes on the inner surface of the knee. In this way, the user 12 is stably connected to the device 1 at two points, i.e. the sole of his/her foot is connected to a footrest 5 and the inner side of his/her knee is connected to a side plate 2 located on the same side of the footrest 5 as mentioned above . These two connections are sufficient to safely control the unit. In the stage of Fig. 3, the user 12 propels the device 1 like a scooter with his/her free leg not resting on any object, while standing on a pedal 5 with his/her other leg When advancing (Fig. 1, arrow c), the other leg supports him/herself by the inside of his/her knee. When the device 1 is fast enough, the user 12 makes his/her propelling leg also stand on the footrest 5, so the eccentric load ends, which is the load of the two legs outside the plane of the wheel, thus when the bearing surface a is no longer When pushing the inner side of the knee, the horizontal force disappears. Thus, during the free-rolling phase shown in FIG. 4, the connection between the knee and the device 1 is disengaged (through its side panels), but because the user is standing on the device 1 with two legs, the user is again guaranteed Fully connected at two points on the two foot pedals 5, so that the device 1 is safely controlled. Satellite wheel 6 makes device 1 stabilize and prevent tilting accurately.

The hobby and/or sports device II according to Fig. 5 differs from the device I shown in Figs. Also used in Figure 5 to label identical elements.

One difference is that the side panels 3 are higher than the side panels 2, they protrude beyond the highest point of the wheel 1 by a certain distance m, in other words, the overall height L is determined in order to achieve this state, so that, in addition to the bearing surface assigned to the user's 12 knees a In addition, they have a bearing surface b for the support of the thigh, which makes turning and forwarding even more stable and eliminates excessive lateral loads on the knee, since it provides support on the same principle as the bearing surface a knee bearing surface, and Support is also provided near the center area of the inner thigh.

Another difference is that in addition to the satellite wheel 6, the device II has a second front satellite wheel 7 on the other side with respect to the direction of travel indicated by the arrow c, which satellite wheel 7 is also located in the track of the wheel 1, and it also The side plates 3 are clamped together at the top by connecting ribs 4a by means of wheel forks 13 by inserting rotatable connecting parts 11 to the ends of the bracket holding parts 10 . In space, the axis y2 of the satellite wheel extends above the axis y1 of the satellite wheel 6, and in the normal propulsion and operating state of the device II, the lowest point of the satellite wheel 7 is above the ground t by a distance f. The minimum distance of the running edge of the satellite wheel 7 from the running edge of the wheel 1 is marked by the reference letter k; its length may be the same as the distance e, for example a few centimeters. Therefore, under normal propulsion and running conditions, the satellite wheel 7 is not in contact with the ground t (the length of the distance f can be several centimeters). During use of the device II, the front satellite wheel 7 has an active role when the user 12 wishes to go backwards through the device; at this time, the satellite wheel 6 is raised off the ground t, the satellite wheel 7 rolls on the ground t, thereby Guarantee the stability of the device II and prevent it from tilting in the running direction.

The advantage of the invention is that the resistance of the device is lower, primarily due to the larger diameter of the wheels, and thus significantly lower than some other similar sports and/or hobby devices such as skateboards, and thus it is able to move faster and faster than, for example, skateboards. Easier to propel, and it can be controlled fairly easily with very little movement of the ankle or hip. Since it immediately falls sideways when the user leaves the device, stops rolling and remains on the ground, it is less prone to accidents in this situation than a skateboard that rolls freely and independently. Another advantage is that due to the satellite wheels or wheels and the raised side panels that provide the thigh support surface, the stability of the device is more stable than similarly featured hobby and/or sports devices described above in the Background section, thus , which is easier to control during both the propulsion and operation phases. Eliminates any excessive load on the knees.

Obviously, the invention is not limited to the structural examples detailed above, but can be implemented in various ways without departing from the scope of protection defined by the claims. The device may also be powered by a motor (auxiliary motor) and/or it may be provided with seating.

Claims (9)

CLAIMS 1. A foot-propelled wheeled hobby and/or exercise device having: Wheel (1) between two side plates (2; 3), which are suspended on the axis (X) of the wheel (1); under the axis (X) of the wheel (1) and outwardly protruding footrests (5) are connected to the side panels (2; 3); during proper use of the device (I; II), the side panels (2; 3) stand over one or two The knees of the user (12) on the footrest (5) are protruding, thereby providing a bearing surface (a) for the knees, characterized by a determined distance behind the device (I; II) with respect to the direction of travel (e) There is a structure to ensure stability and prevent tilting within the track range of the wheel (1). 2. Foot-propelled wheeled hobby and/or sports device according to claim 1, characterized in that the structure ensuring stability is a satellite wheel (6). 3. Foot-propelled wheeled hobby and/or sports device according to claim 2, characterized in that the structure ensuring stability is attached to one or more side panels (2; 3) mounted on or forming side panels (2; 3) part of the cantilever-shaped holding part (8), so as to protrude backwards. 4. Foot-propelled wheeled hobby and/or sports device according to claim 2 or 3, characterized in that the satellite wheels (6) are connected to the On the holding part (8) belonging to the side plate (2; 3). 5. The foot-propelled wheeled hobby and/or sports device according to any one of claims 1-4, characterized in that the lowest point of the stable structure, preferably satellite wheels (6), is in contact with the wheels ( The lowest points of 1) are in or about the same plane. 6. Foot-propelled wheeled hobby and/or sports device according to any one of claims 1-5, characterized in that at a determined distance (k) in front of the device (II) with respect to the direction of travel, Within the scope of the track of the wheel (1), there is a second structure to ensure stability and prevent tilting, which is preferably a satellite wheel (7). 7. The foot-propelled wheeled hobby and/or sports device according to claim 6, characterized in that, in the normal operating state of the device (II), the second, preferably satellite wheel (7), guarantees stability A second structure is located at a determined distance (f) above the ground (t). 8. The foot-propelled wheeled hobby and/or sports device according to any one of claims 1-7, characterized in that the side panels (3) are configured to have support surfaces for the thighs of the user (12) (b) Height (L). 9. The foot-propelled wheeled hobby and/or sports device according to claim 8, characterized in that the side panels (3) protrude a certain distance (m) beyond the highest point of the wheel (1).

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