JPH0194874A - Training tool for strengh of legs - Google Patents

Abstract

PURPOSE: To perform the free walking and running of an optional fixed speed by parallelly pivotally attaching a driving drum composed of an inner cylinder fixed inside an outer cylinder and a driving motor with a reduction gear tightly fitted inside the inner cylinder and plural cylindrical rollers and winding and spreading an endless belt to them. CONSTITUTION: Between a parallel pair of supporting plates 3 in a recessed curved surface shape whose rear part is inclined downwards, the driving drum 4 composed of the inner cylinder 5 fixed inside the outer cylinder 8 and the driving motor with the reduction gear tightly fitted inside the inner cylinder 5 and the plural cylindrical rollers 12 are parallelly pivotally attached. Further, the endless belt 13 is wound and spread to them. As a result, use is easily performed inside a house or the like and a user freely enjoys walking and running at a forced optional fixed speed on a walking and running surface.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a leg strength training device for promoting health that can be easily used indoors, etc. and also enables forced walking and running exercises for a fixed period of time. It is.

(Prior Art and its Problems) Conventionally, personal exercise for the purpose of promoting and maintaining health has included running outdoors,
I was involved in walking activities such as mountain climbing.

However, in such outdoor individual exercise,
Although it is possible to get close to nature, it is difficult to find a suitable place where everyone can do it, and the sudden onset of exercise can cause a sudden drop in blood pressure, making it difficult to set the appropriate amount of exercise to suit one's physical strength. The problem was that it was difficult and had to be adjusted to the weather.

Therefore, in recent years, health equipment that can be used freely indoors has been developed, and in particular, a belt conveyor type leg training exercise machine that can be used by any age group or user has attracted attention as a useful tool for improving and maintaining health. ing.

By the way, in a conventional walking exercise machine, for example, cylindrical drums are placed at the front and rear of a frame body, an endless belt is wound around these drums, and a number of cylindrical drums are placed below the upper side of this belt. Some rollers are arranged in parallel so that the upper surface of the belt is approximately flat, but because the walking and striking surface is a flat surface with no slope, the resistance when starting walking/running on the endless belt is low. Moreover, even during walking, it is difficult to apply a uniform force to the walking hitting surface, so there is a problem in that it is impossible to continue a steady walking.

Therefore, in order to make it possible to walk at a constant pace,
As disclosed in No. 8260, the upper surface of the belt is made into a concave curved surface, and the entire belt is arranged so as to be inclined downward toward the rear, so that the movement of the body weight is used to make walking as easy as possible. An improved product has been devised that allows for walking, but even with this, it is possible to walk as uniformly as possible compared to the above-mentioned exercise equipment, but after shifting the weight, in other words, the rear kicking leg is moved forward. If you put your weight on that leg after moving it, the belt will move rapidly, your weight will always lean forward, you will have to constantly hold onto the handrail as you walk, and you will end up with excess weight on your shoulders and arms. It is inappropriate because it requires a lot of force.

Therefore, in order to eliminate the above-mentioned problems, we have developed an electric leg strength training tool that forcibly rotates an endless belt using a motor drive and allows the user to walk on the belt at a forced constant speed. However, the electric models currently being developed require a drive motor and various devices to transmit the driving force from the motor, so they are all large-scale and cannot be easily used at home. The current situation is that nothing to this extent has been developed.

(Objective of the Invention) The present invention has been made in view of the above-mentioned circumstances, and can be easily used indoors such as at home, and allows the user to freely move at any fixed speed on a walking surface. The purpose of this product is to provide a leg strength training tool for improving and maintaining health that has a compact design that allows you to enjoy walking.

(Structure of the Invention) That is, the leg strength training tool of the present invention includes an inner cylinder fixed in an outer cylinder and a tight fit inside the inner cylinder between a pair of parallel concave curved support plates whose rear sides are inclined downward. A drive drum consisting of a drive motor with a speed reducer and a plurality of cylindrical rollers are pivoted in parallel, and an endless belt is wound around these, and forced walking motion and forced running motion due to motor drive are achieved. It is characterized by making it possible.

EMBODIMENT OF THE INVENTION Hereinafter, the leg strength training device of the present invention will be described in detail based on an embodiment shown in the drawings.

(Example) FIGS. 1 and 2 are perspective views showing an embodiment of the leg strength training tool 1 of the present invention. Base frame 2.2,
A pair of parallel concave curved support plates 3 whose rear sides are inclined downward.
3 are fixed respectively, and a drive drum 4 having a drive motor with a reduction gear installed therein is pivoted to the front part between these concave curved support plates 3 and 3, as shown in the partially enlarged view of FIG. 3. , a plurality of cylindrical rollers 12 are arranged in parallel behind the drive drum 4 between the concavely curved support plates 3 and 3, and an endless belt 13 is wound around these rollers.

18 is a speed adjustment switch capable of adjusting the rotational speed of the driving drum 4; 19 is a speed indicator that displays the moving speed of the endless belt 13 according to the rotational speed 4 of the driving drum; and 20 is a timer that can set the driving time of the driving drum 4, that is, the operating time of the endless belt 13.

For example, as shown in FIG. 4, the drive drum 4 has a drive motor with a reducer fitted therein in a tight fit, and the drive shaft 7 of the drive motor with a reducer is inserted from the center of both side walls 6, 6. an inner cylinder 5 that passes through each of them; an outer cylinder 8 that houses the inner cylinder 5 and rotatably supports the drive shaft with a bearing 10 provided at the center of both side wall surfaces 9; and these inner cylinders. 5
Both side walls 6 and 6 of the inner cylinder 5 are fixed so as to fix the space between the inner cylinder 5 and the outer cylinder 8.
Both screws 'f-11 penetrate through the outer circumferential portion at appropriate positions and can be screwed onto both side wall surfaces 9, 9 of the outer cylinder 8 on the extension line thereof.
As mentioned above, by pivoting the drive shaft 7 to the front part between the concave curved support plates 3,
An inner cylinder 5 containing a drive motor and an outer cylinder 8 fixed to the inner cylinder 5
The endless belt 13 rotates integrally and is wound around the endless belt 13.
It moves by itself in the direction of the arrow shown in FIG.

The inner cylinder 5 is made of resin, metal, etc. and has a small diameter cylindrical shape that can accommodate a small drive motor, etc., and the outer cylinder 8 is also made of the same material as the inner cylinder 5. The inner cylinder 5 is formed into a cylindrical shape with a diameter that is large enough to be placed inside.

Furthermore, in the drawings, reference numerals 14, 15, and 16 are handles that the user arbitrarily holds when using the training tool 1, and the handles 14, 15, and 16 are made of elastic material to prevent slipping during use. It should be made of wood.

Furthermore, 17 is a cover for preventing manual packing of the drive drum 4.

(Specific Effects of the Invention) The leg strength training device 1 of the present invention is constructed as shown in the above embodiment, and when using this, the leg strength training device 1 of the present invention may be used as desired. After installing it at the location, the user simply steps on the leg strength training tool l as shown in FIG. 5, sets an appropriate time using the timer 20, and turns on the power using the speed adjustment switch 18. , in which the drive drum forcibly rotates the endless belt.

Thereafter, while checking the speed indicator 19, the speed adjustment switch 18 can be used to arbitrarily adjust the speed to a desired moderate speed, and this speed adjustment allows the user to freely set the walking speed.

(Effects of the Invention) As described above, the leg strength training tool of the present invention has an inner cylinder fixed in an outer cylinder and an inner cylinder fixed between a pair of parallel concave curved support plates whose rear sides are inclined downward. A drive drum consisting of a drive motor with a speed reducer that is tightly fitted into the thin part is pivoted on the thin part, and a plurality of cylindrical rollers are arranged in parallel behind the drum, and these are wound with an endless belt. Since it is an electric type that allows the endless belt to be moved at a forced and arbitrary constant speed, the rear kicking leg can be moved forward when in use, like a conventional walking/hitting exercise machine. This solves the problem of the belt moving rapidly when weight is applied to the leg after the weight has been moved, causing the weight to shift, and the user having to constantly walk while clinging to the first slide. .

In addition, the leg strength exerciser of the present invention has a drive motor with a reducer built into the drive drum so that the drum itself rotates on its own, so unlike conventional electric leg strength exercisers, the A separately installed drive motor for driving the drum and various devices for transmitting the driving force from the motor are not required, and the design can be made as compact as possible.

Therefore, the present invention has high utility value as it allows the user to freely perform walking or running exercises at a constant speed that are felt and aimed at promoting and maintaining health.

[Brief explanation of the drawing]

FIG. 1 is a rear perspective view showing an embodiment of the leg strength training device of the present invention, FIG. 2 is a front perspective view showing an embodiment of the leg strength training device of the present invention, and FIG. FIG. 4 is an explanatory diagram showing one embodiment of the driving drum in the leg strength training tool of the present invention; FIG. 5 is an explanatory diagram showing the usage status of the leg strength training tool of the present invention; FIG. 6 is a central vertical sectional view of the leg strength training device of the present invention. 1 is a leg strength exerciser, 3 is a concave curved support plate, 4 is a drive drum, 5 is an inner cylinder, 7 is a drive shaft, 8 is an outer cylinder, 12 is a cylindrical roller, and 13 is an endless belt. Patent applicant Fuji Medical Equipment Co., Ltd.

Claims (3)

[Claims] (1) A drive drum consisting of an inner cylinder fixed inside an outer cylinder and a drive motor with a speed reducer tightly fitted into the inner cylinder between a pair of parallel concave curved support plates whose rear sides are inclined downward. A leg strength training tool comprising a plurality of cylindrical rollers mounted in parallel and an endless belt wrapped around them. (2) A drive drum fixed between the concave curved support plates is pivoted to the front part between the concave curved support plates, and a plurality of cylindrical rollers are arranged in parallel behind the drive drum. The leg strength training tool according to claim 1, characterized in that: (3) The drive drum includes an inner cylinder in which a drive motor with a reducer is tightly fitted inside the drive drum, and a drive shaft of the drive motor with a reducer is passed through from the center of both sides of the drive drum, and the inner cylinder. an outer cylinder that is internally installed and rotatably supports the drive shaft with bearings provided at the center of both side walls; and an outer periphery of both side walls of the inner cylinder and adjacent side wall surfaces of the outer cylinder. The leg strength training device according to claim 1, characterized in that it is constituted by both screws that are screwed in a penetrating manner to fix the two cylinders.