JP2002331064A - Direction changing mechanism for running exercising apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a direction changing mechanism for running exercising apparatuses which enables change in the direction of wheels by shifting the weight of a user while allowing free adjustment of the change in the direction according to the weight. SOLUTION: In the running exercising apparatus which has a plurality of wheels arranged on a base place 1 with the top surface thereof as a foot rest part, a direction changing disc 5 which has a cut groove part 6 cut open from the direction of the axis to the circumferential direction thereof is held with a bridge part 7 inserted through the cut groove part 6 being fitted loosely thereinto between wheel support parts 2 on the base plate 1 where at least one wheel is arranged while being pivoted on the bridge part 7 in a link ahead of the direction changing disc 5 in the axis thereof and furthermore, a tire part 10 is externally fitted on the outer circumferential rim of the direction changing disc 5 so as to let it encircle the outer circumferential rim.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direction changing mechanism for a running exercise tool such as a roller ski or a skate boat.

[0002]

2. Description of the Related Art A conventional roller ski or skate boat is provided with a rotating body such as a roller before and after a substrate and rides on the substrate and slides on an inclined surface.

[0003] For roller skiing, Japanese Patent Application Laid-Open No. Hei 5-329241 has filed an application as a running exercise tool having a skidding function, which is a basic function of snow skiing, and an edge function. The present invention, as shown in FIG.
A sub-wheel support portion e in which a rim portion c is formed on the outer periphery of the disk b of the wheel a, and concave portions d are arranged at equal intervals on the outer periphery of the rim portion c.
Is fixed, and a plurality of auxiliary wheels f that rotate in a direction perpendicular to the running direction are pivotally supported in the recess d. Therefore, when the wheel a is tilted due to weight shift, the wheel a can be skid by the auxiliary wheel f.

As shown in FIG. 6, the skate boat is connected and pivoted in such a manner that, of the front wheel h and the rear wheel i provided before and after the lower portion of the substrate g, the front wheel h is rotatable left and right with respect to the support j. And the supporting portion j is attached to the front wheel h with respect to the substrate g.
, The front wheel h rotates in the left-right direction due to the movement of the weight when the course is changed in the left-right direction.

[0005]

In the roller ski provided with the skidding function, the skidding operation is mainly performed, and the skiing can be performed with the same feeling as skiing performed on snow, that is, the direction change at the time of edging operation cannot be sufficiently performed. There's a problem.

In the above skate boat, the direction of the front wheels is changed by moving the weight to the left and right. However, since the way the front wheels bend changes depending on the balance between the weight and the traveling speed, the skate boat is not suitable for those with heavy weight. However, there are problems such as a sudden change of direction and a fall.

Further, since the front wheel is structured so as to be connected and pivoted by the support portion, a load is intensively applied to the support portion and the connection pivot portion, and the support member is made thick to withstand the load. Alternatively, it is necessary to increase the size of the front wheels, and if this direction changing mechanism is applied to a roller ski, the roller ski itself becomes large, causing problems such as impairing the original function of the ski.

In the present invention, in order to solve the above-mentioned problems, the traveling direction can be changed by changing the weight of the wheels regardless of the size of the wheels, and the direction can be adjusted freely according to the weight. An object of the present invention is to provide a direction changing mechanism of the exercise equipment.

[0009]

According to the present invention, claim 1 is:
In a running exercise tool in which a plurality of wheels are provided on a substrate having an upper surface serving as a footrest portion, at least one of the wheels is provided between a wheel support portion provided on the substrate and a groove cut in a circumferential direction from an axial direction thereof. Is held by the laying part inserted loosely into the cut groove part,
In addition, the connecting portion is pivotally connected to the connecting portion in front of the axis of the direction changing disk, and further, a tire portion which can be turned around the outer peripheral edge of the direction changing disk is fitted outside.

According to a second aspect of the present invention, a coil spring is extrapolated to a bridging portion between the wheel supporting portion and the direction changing disk according to the first aspect, and the direction is changed by adjusting the compression while resisting the urging force of the coil spring. It is characterized in that a direction change adjusting unit for adjusting the pressure on the disk is provided.

According to the present invention, the direction change disk which does not rotate itself is connected and pivoted at the front of the axis by the transfer portion, so that the change in the right and left direction can be performed by moving the weight at the time of the right and left direction change, In addition, it is possible to run by a tire portion which is fitted around the outer periphery thereof in a state where it can go around by a bearing or the like. In addition, in the case of running exercise equipment such as a skateboard in which wheels are provided in front and behind, in many cases, wheels having the front wheel as a direction change mechanism of the present invention are provided, but when a plurality of wheels are provided such as roller ski, this is required. In some cases, the vehicle may be constituted by wheels serving as the direction changing mechanism of the invention.

Further, a coil spring is extrapolated to a bridging portion between the wheel supporting portion and the direction changing disk, and further, a direction changing adjustment for adjusting the pressure on the direction changing disk by adjusting the compression while resisting the urging force of the coil spring. By providing the section, the direction change of the direction change disk is controlled, and the body is prevented from falling due to sudden direction change due to the weight.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings showing the embodiments. Embodiment 1 As shown in FIG. 1, wheel supports 2 and 2 having a fixed width are formed before and after a substrate 1.

A rear wheel 4 which is rotatable around an axle 3 by a bearing or the like is provided on a wheel supporting portion 2 at a rear portion of the substrate 1.

A direction change disk 5 is provided between the wheel support portions 2 at the front of the substrate 1, and the direction change disk 5 is formed so as to be cut in a circumferential direction from the center thereof as shown in FIG. 6 is opened and the cut groove 6
A plate-like bridging portion 7 is inserted into the inside in a state of protruding from both sides of the cut groove portion 6 in a free running state.

Therefore, the bridging portion 7 in the cut groove 6 has
A connecting portion 8 protruding in a protruding manner is provided on the front side, and the connecting portion 8 is connected and pivotally supported by a connecting shaft 9 in the cut groove 6.

Further, both ends of the transfer portion 7 are configured to be connected and supported by the wheel supporting portion 2.
As a result, the direction changing disk 5 connected and pivoted to the connecting portion 7 mounted orthogonally to the traveling direction of the substrate 1 can change its direction so as to be rotatable left and right about the connecting shaft 9.

Further, the tire portion 10 is rotatably fitted to the outer periphery of the direction change disk 5 via a bearing or the like via a bearing or the like. Therefore, the direction change disk 5 performs a left-right direction change without rotating, and a mechanism in which only the tire section 10 travels around the outer circumference of the direction change disk 5. The tire portion 10 is formed of a hard rubber or a hard sponge material.

Embodiment 2 As shown in FIG. 3, a direction change adjusting portion 11 is provided between the bridge portions 7, 7 protruding from the direction change disk 5 and the wheel support portions 2, 2.

The direction change adjusting section 11 extrapolates a spirally wound coil spring 12 into the transfer section 7, and inserts a male screw section 13 having a predetermined length through one end of the coil spring 12.
The male screw portion 13 is screwed with the female screw portion 14 for pressing the coil spring, and the wheel support portion 2 is provided with the direction change adjusting portion 11 between the direction change disks 5.

Accordingly, by rotating the female screw portion 14 for pressing the coil spring and compressing the coil spring 12 while resisting the urging force, the left and right coil springs 12 press the direction-changing disk 5, and as a result, the direction The direction change of the conversion disk 5 is controlled.

The direction change adjusting section 11 is a mechanism for controlling the horizontal adjustment of the direction change disk 5 by moving the weight. In addition to the control by the coil spring 12, the direction change disk 5 and the transfer section 7 are controlled. A mechanism is also conceivable in which the connection is pivoted by a bolt or the like and the conversion is controlled by the degree of tightening, and it is desirable to employ the most suitable mechanism according to the situation.

In the present invention having the above construction, as shown in FIG. 4, when the body is tilted in the direction A to bend in the direction A, for example, the direction changing disk 5 is provided between the wheel supporting portions 2. The direction changing disk 5
Since the connecting pivot is provided at a position forward of the central axis of, the direction is changed to the direction A in the drawing.

In this case, the coil spring 12 of the direction change adjusting unit 11 is compressed by the female screw part 14 for pressing the coil spring, so that the pressing force on the direction change disk 5 can be freely adjusted. As a result, the direction change of the direction change disk 5 can be performed. Can be controlled.

[0025]

As described above, according to the present invention, instead of changing the direction of a traveling and rotating wheel as in the prior art, a fixed type direction changing disk connected and pivotally supported by a bridge is provided. In order to perform a change in the direction, and to make the mechanism run by a tire portion that is mounted so as to be able to orbit around the outer circumference of the direction change disk, it is possible to simplify the mechanism for changing the direction, and further within the wheel diameter. Can be fully utilized even in the case where several wheels are provided like a roller ski.

Also, since the directional change disk is a fixed directional change mechanism, directional change control by a coil spring or the like is possible, and by controlling the directional change according to the weight, accidents such as a fall due to a sudden change in direction can be prevented. It is possible to do.

[Brief description of the drawings]

FIG. 1 is an overall explanatory diagram in Embodiment 1 of the present invention.

FIG. 2 is an explanatory diagram of a direction change disk according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram illustrating a direction conversion adjustment unit according to a second embodiment of the present invention.

FIG. 4 is an explanatory diagram of an operation of a direction change according to the present invention.

FIG. 5 is an explanatory view showing an example of a conventional roller ski.

FIG. 6 is an explanatory view showing an example of a conventional skate boat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Board | substrate 2 Wheel support part 3 Axle 4 Rear wheel 5 Direction change disk 6 Notch groove part 7 Bridge part 8 Connection part 9 Connection shaft 10 Tire part 11 Direction change adjustment part 12 Coil spring 13 Male screw part 14 Female screw part for coil spring press.

Claims (2)

[Claims] 1. A running exercise tool in which a plurality of wheels are provided on a substrate having an upper surface serving as a footrest, wherein at least one of the wheels is disposed between a wheel supporting portion provided on the substrate and an axial direction thereof. The direction change disk having the cut groove formed in the circumferential direction is held by the bridging portion inserted loosely into the cut groove, and is pivotally connected to the bridging portion in front of the axis of the direction change disk. A direction changing mechanism for a running exercise tool, wherein a revolvable tire portion is further fitted around the outer peripheral edge of the direction changing disk. 2. A direction in which a coil spring is extrapolated to a bridging portion between the wheel supporting portion and the direction change disk, and further, a pressure on the direction change disk is adjusted by compression adjustment while resisting the urging force of the coil spring. The direction changing mechanism for a running exercise tool according to claim 1, further comprising a conversion adjusting unit.