JP2876204B1 - Ankle exerciser - Google Patents

Abstract

An object of the present invention is to provide an ankle exerciser capable of freely adjusting a swing width and a swing speed, thereby enabling a fine rehabilitation exercise according to an ankle obstacle state. A rack reciprocating in a lateral direction by a linear motor is connected to a lower end of a shaft, a footrest is connected to an upper end, and a controller for adjusting a swing speed and a swing width of the shaft is attached. . [Effect] The swinging motion of the ankle according to the user's request can be easily performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ankle exercising device, and more particularly, to promote blood circulation by rocking the ankle of a person who has an ankle disorder and has a bent or ankle with difficulty. Also relates to a device for softening or training the muscles of the feet.

[0002]

2. Description of the Related Art An ankle exercising apparatus for exercising an ankle is disclosed in Japanese Patent Application Laid-Open No. 52655/1990, and FIG. The heel support member 3 and the swing member 4 are attached to the bracket protruding from the base 2,
A slidable foot support member 5 is attached to the tip 4a of the swinging member, and a shaft 7 attached to the eccentric position of the motor's rotating plate 6 is attached to the swinging member 4 to provide an ankle rocker 1. Is formed.

[0003] The user places the heel on the heel support member 3, adjusts the base of the toe support member 5 to a desired position, and then starts the motor. When the rotating plate 6 of the motor rotates, the shaft 7 is rotated. The crank motion is performed, and the rotational motion of the motor is converted into a shaft oscillating motion, and the oscillating member 4 oscillates back and forth with the connection point with the bracket as a fulcrum, thereby oscillating the ankle of the user back and forth. is there.

[0004]

[Problems to be Solved by the Invention] Ankle muscles are damaged due to illness or injury, and an ankle cannot be bent or, on the contrary, a person with a condition of being fully stretched swings the ankle and causes blood circulation at the ankle. There are rehabilitation exercises that promote ankle and strengthen the muscles to restore flexion and extension of the ankle. In addition, even a healthy person may have swelling due to prolonged standing work or wearing high heels. Conversely, if you continue to wear low-heeled shoes, the Achilles tendon will continue to stretch and your ankles will become stiff. When the ankle is swung in such a state, blood circulation is promoted, which is effective in relaxing stiff muscles and strengthening muscle strength.

However, the conventional ankle rocker 1 can be used only in the supine position because the heel support member 3 is fixed in a state substantially fixed to the base 2, that is, the floor surface. Further, since the motor rotating plate 6 and the swing member 4 are connected by the shaft 7, the swing width is fixed and cannot be adjusted. Further, the swing speed cannot be adjusted. If the swing width and swing speed cannot be adjusted, it is not possible to provide a fine swing movement according to the individual user's obstacle, which is not only inconvenient, but also for those with an ankle disorder, In many cases, the bending width is extremely small, and forcing the forcible swing not only does not lead to functional recovery but also may worsen the symptoms.

Accordingly, the present invention provides a device for converting the linear motion of a linear motor rack into a rocking motion instead of the motor rotating motion, and having a function of adjusting the rocking width and speed. Another object of the present invention is to provide a device capable of performing a rehabilitation exercise according to a user's symptoms or a desired amount of exercise, and to utilize the apparatus for rehabilitation exercise of not only ankle muscles but also quadriceps and tibialis anterior muscles.

[0007]

SUMMARY OF THE INVENTION A linear motor connects the front end of a rack reciprocating in the horizontal direction to the lower end of a shaft, and the upper end of the shaft is connected to the rear end of a footrest on which the sole is placed and brought into contact. In addition, the connecting portion of the footrest is pivotally supported by casing, and a controller for adjusting the swinging speed and swinging width of the shaft is attached. Further, a limit switch and a dog are provided. The shaft is prevented from retreating and the counter is attached.

Hereinafter, how the present invention works to solve the above-mentioned problem will be described.

In the present invention, instead of converting the rotational motion of the motor into the oscillating motion as in the prior art, the present invention uses a linear motor to convert the linear motion of the rack into the oscillating motion.
It is possible to adjust the swing width and speed of the rack by using a liner. The shaft swingably connected to the rack swings in accordance with the linear movement of the rack, and the footrest connected to the shaft swings together with the shaft.

[0010] Since the user can adjust the stroke and speed of the rack with the controller at hand, the rocking motion of the user's desired momentum can be performed. Even if the footrest oscillates with an unexpected swing width due to malfunction of the controller, setting the swing limit in advance
The moment the rack moves back and forth beyond the swing limit, the limit switch and the dog are activated and the rack stops safely.

Further, the display of the counter allows the user to reliably know the current exercise amount.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is an explanatory view showing a use state of the ankle rocker according to the present invention, and FIG. 3 is a plan view.

Rack case 1 with built-in linear motor 9
0 is fixed to the base 26, and the connecting pin 14 fixed to the tip 8a of the rack 8 which slides inside the rack case 10 is loosely inserted into the long hole 11a provided at the lower end of the shaft 11 so that the rack 8
The shaft 11 is connected to the upper end 11b of the shaft 11 and the footrest 12 with a shaft 13 at a desired inclination angle, and the shaft 13 is supported by the side wall of the casing 17.

When the linear motor 9 mounted on the rack case 10 is actuated by the rack 8 moving forward and backward in the rack case 10, the rack 8 slides back and forth in the rack case and is mounted on the tip 8a of the rack 8. The shaft 11 also swings back and forth, and the footrest 12 connected to the shaft also falls with the shaft 13 as a fulcrum.

A slip stopper 15 made of rubber or the like is adhered to the toe contact portion at the tip of the footrest 12 (FIG. 3). A belt or a planar fastener 16 for fixing the instep is anchored slightly above.

A groove 17a corresponding to the swing width of the shaft 11
Before mounting the footrest 12 on the upper end 11b of the shaft 11, the casing 17 formed with the above is erected on the base 26 to which the rack case is attached, and then the upper end 11b of the shaft 11 protruding from the groove 17a. A footrest 12 having a desired inclination is connected with a shaft 13 and both ends of the shaft 13 are cabled.
It is supported by the thing 17.

FIG. 4 is an explanatory view showing a state where the shaft 11 and the footrest 12 swing according to the linear movement of the rack 8.

When the rack 8 moves forward, the shaft 11 'connected to the rack 8 by the connecting pin 14 tilts rearward,
The footrest 12 'connected by the shaft 13 moves toward the user. Conversely, when the rack 8 moves backward, the shaft 11 "tilts forward, and the footrest 12" moves away from the user.

A control panel 18 is attached to a power supply cord drawn out of the casing 17. The control panel 18 includes a power switch 19, a stroke dial 20 for adjusting the swing width, and a speed dial for adjusting the swing speed.
A dial 21 is provided. The user turns on the power switch 19 with the control panel 18 at hand, and adjusts the desired swing width and swing speed with the dial 20 or 21.

It is very convenient to be able to adjust the swing width and the like of the footrest 12. On the other hand, the footrest 12 swings more than expected due to the malfunction of the controller of the user, and the footrest 12 is moved to the ankle. There is a possibility that a heavy load may occur. Therefore,
In order to prevent unexpected swing, the present invention is provided with the following automatic control mechanism. A limit switch 23 is attached to a projection 24 projecting rearward from the rack case 17, and a dog 25 is projected at a desired position on the rear end 8b of the rack 8. When the rack 8 swings within the range of the set width, the dog 25 does not contact the limit switch 23, so that the rack 8 keeps moving linearly.
When the stroke dial 20 of the control panel 18 is erroneously enlarged and the rack 8 swings beyond the set swing width, the dog 25 comes into contact with the limit switch 23, and the rack 8 stops immediately.

A counter 22 operated by a sensor is attached to the casing 17, and a rear end 8 of the rack 8 is provided.
Each time b exceeds the set position, it is counted, and the user can confirm at a glance how many times the rocking motion of the foot has been performed.

[0023]

【The invention's effect】

1. Since the inclination of the footrest can be set to a desired inclination of the user and the swing width and the swing speed can be adjusted, the swing movement of the ankle according to the user's request can be easily performed. Since the inclination of the footrest can be freely selected, the user can swing the ankle in a supine position, sitting on a chair, or even standing. 2. It is convenient because the rocker can be operated and adjusted with the control panel at hand. In addition, the user can use the ankle rocker while viewing the display on the counter, which is convenient. 3. Since the rack braking device is provided, an accident caused by an unexpected operation of the rocker can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 shows a conventional example of an ankle rocker.

FIG. 2 is an explanatory view showing a use state of the ankle rocker according to the present invention.

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory view showing the movement of a footrest of the ankle rocker according to the present invention.

[Explanation of symbols]

8, rack 9, linear motor 10, rack case
S 11, shaft 12, footrest 13, shaft 14, connecting pin 1
5, non-slip 16, belt 17, casing
18, control panel 22, counter-2
3, limit switch 25, dog

Claims (1)

(57) [Claims] 1. A connecting pin fixed to an end of a rack which slides by driving a linear motor is loosely inserted into an elongated hole provided at a lower end of a shaft.
A footrest 1 provided with a belt 16 for supporting a shaft 13 provided at an upper end of the casing 1 on a side wall of a casing 17 and fixing an instep portion.
2. An ankle exerciser having a rear portion 2 integrally fixed to the shaft 13 and a safety stop device for the rack 8 attached thereto.