JPH0238773Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an automatic gait training machine whose running belt can be tilted or whose running speed can be smoothly changed, and which does not take up much storage space.

``Prior art and problems to be solved by the invention'' Conventional walker transmissions are a combination of belts and rollers, and are capable of only stepped speed adjustment. When a smooth speed change is desired, a variable speed motor such as a DC variable speed motor or a converter-controlled AC motor is used. However, both DC motors and converters occupy a considerable amount of space, and converter-controlled AC motors in particular lack sufficient torque at low speeds, making it impossible to start from zero and operate at low speeds.

The inclination adjustment device of the track base of a conventional walking machine is
A sliding gear or threaded rod installed vertically on the track base is used to occupy upright space and increase the height of the body.

In conventional walkers, the controller and handrail are fixed above the track base, and the height or angle can only be adjusted slightly, and the overall structure occupies a relatively large space, making it very inconvenient to store and transport. It is.

``Means for Solving the Problems'' In view of the above circumstances, the present invention is based on a constant speed motor that rotates at a constant speed, and a triangular belt type transmission that directly transmits the rotational power of the constant speed motor through a sun gear. and a planetary gear mechanism that transmits information to a ring gear via a planetary gear train. The inclination adjustment device of the track stand uses a joint structure housed below the track stand, so that it does not protrude above the track stand, and the form of the main body can be simplified. Additionally, the volume was significantly reduced by using foldable handrails and supports with microcomputer controls. Furthermore, it can be used for various walking machines including non-automatic control devices.

The main purpose of the present invention is to enable smooth speed change operation from zero speed to a predetermined speed by using a constant speed motor, triangular belt transmission, and planetary gear mechanism.

Another purpose of the present invention is to simplify the structure of the main body and reduce its volume by using a track base inclination adjustment device stored under the track base and foldable handrails and supports on the track base. There is.

Embodiment FIG. 1A is a perspective view of an automatic walking training machine according to the present invention. Referring to this drawing, the present invention includes a track base 1, a support column 2 of a controller 21, and a handrail 3.
It is equipped with

This track base 1 includes a main body 11, a running belt 12, a variable speed drive device 13, and an inclination adjustment device 14.
It is equipped with The lower end of the pillar 2 is the track base 1.
A microcomputer controller is attached to the upper end, and a one-touch connector 23 that can be connected to or separated from the handrail 3 is provided below the controller. The handrail 3 is slightly n-shaped, and both lower ends are separately fitted into both sides of the rear end of the track base 1 and are pivotally supported. Therefore, after separation, the handrail 3 and the post 2 are folded onto the track base 1 facing each other, as shown in FIG. 1B.

FIG. 2 is a sectional view of the variable speed drive device 13 of the present invention. This variable speed drive device 13 has a constant speed motor M installed at the tip of the main body 11. This constant speed motor M has an output shaft on the left side connected to a triangular belt transmission 131, and rotational power is transmitted via a relay shaft 132 and a relay gear 133 to a sun gear 134 of a planetary gear mechanism provided on the right side. The right shaft is connected to the gear set 135, and the rotating power is transmitted to the planetary gear train 1 (including the planetary stand) of the planetary gear mechanism.
36, the sun gear 134 and the planetary gear train 1
36 is outputted from a ring gear 137 and drives the running belt 12 via a pulley and a belt 138. To perform a speed change operation, a forward/reverse motor m rotates a cylinder 139a via a reduction gear, and as a result, a cylinder 139b screwed onto the cylinder 139a moves left and right, and the speed change is performed by rotating the cylinder 139b, which is screwed onto the cylinder 139a, moving left and right. The movable plate 131a of the machine 131 is pushed or pulled to change the gear ratio of the transmission 131. The planetary gear mechanism combines the constant speed rotation input of the planetary gear train 136 and the variable speed rotation input of the sun gear 134, so that the ring gear 137 smoothly outputs rotational power from zero speed to a predetermined maximum speed. There is. Therefore, even if the constant speed motor M rotates at a certain constant speed, the desired variable speed rotational output can be smoothly obtained by controlling the forward/reverse rotation motor m.

FIG. 3 shows one embodiment of the slope adjustment device 14 for adjusting the slope of the track base. This adjustment device includes two threaded rods 141 installed in parallel below both sides near the front side of the main body 11, and two sets of V-shaped adjustment structures 142 that can be engaged with each threaded rod. Both ends of each threaded rod 141 are pivotally supported by stays 141a fixed to the main body, and a forward thread groove and a reverse thread groove are formed with the center as a boundary. Two nuts 142a, each having a protrusion that can slide within the groove of the main body 11, are screwed into each reverse thread groove. These nuts are therefore moved toward or away from each other according to the direction of rotation of the threaded rod. On the other hand, the V-shaped adjustment structure 142 has two arms 14 whose upper ends are pivotally supported by respective nuts 142a, and whose lower ends are jointly pivotally supported by a support base 142c.
2b and the support stand 142c.
2d. A chain wheel connected by a chain 141b is fixed to one end of each threaded rod 141, and by rotating it synchronously with a handle 141c or a forward/reverse motor, etc., the width of the V portion of the two V-shaped adjustment structures 142 is adjusted. By widening or narrowing the angle, the height with respect to the ground is adjusted, thereby adjusting the inclination of the traveling track platform.

FIG. 4 shows another embodiment of the slope adjustment device 4 according to the present invention. This inclination adjustment device has both ends pivotally supported by a support base 411 and a driving means 411.
The joint structure 42 is provided with a threaded rod 41 that receives two forward and reverse drives, and in which forward and reverse thread grooves are formed, respectively. The joint structure 42 has nuts 421 screwed into the forward and reverse thread grooves of the threaded rod 41, each upper end is pivotally supported by each nut, the middle part is intersected in an X shape and pinned, and each lower end is connected to a rod 43. It has two articulated arms 422 that are slidably engaged in the grooves of.

A support roller 44 and a movable arm 45 are inserted into both ends of the rod 43, and a rear end 451 of the movable arm is pinned to the main body 11. Therefore, when the threaded rod 41 rotates clockwise, for example, the nuts 421 approach each other, changing the angle of the X-shaped joint arm, lengthening the distance between the support base 411 and the support roller 44, and lowering the The slope of the track is adjusted by changing the altitude.

Figure 5A shows a connection structure that connects the handrail 3 and the post 2 with one touch, and the handrail 3 in the separated state.
and strut 2 are shown. A microcomputer controller or operation panel 21 is attached to the tip of the support column 2, and this microcomputer controller 21 controls motion data.
It is now displayed. The connection structure includes two claws 22 protruding from a surface facing the handrail 3, and a connector 23 inside the handrail 3 that can engage with these claws 22.
It consists of Release buttons 231, 231' that can be pushed inward from both sides are installed in the coupler 23, so that the release buttons 231, 231' can be pushed inward from both sides.
31' and insert the claws 22 into the slit holes formed on the back side of the coupler 23, and then release the release button. In Figure 5B,
A released state in which the release button 231' is pressed, and
A locked state is shown in which the release button 231 is urged outward by a spring 233. Inside each release button is a pin 23 that is biased outward by the force of a spring 233.
2 is attached, and each pin 232 has a corresponding claw 22.
It is inserted into the hole to lock it, or pushed inward to release the lock. button 231,2
The moving distance of the connector 31' is limited by an uneven portion (not shown) formed on the contact surface of the coupler 23.

``Effects of the invention'' As stated above, the automatic walking training machine according to the invention uses a smooth variable speed drive device to change the running speed of the running belt from zero to maximum even when the constant speed motor is rotated at a constant speed. The speed can be set smoothly, and the structure of the inclination adjustment device with the joint structure and the one-touch folding handrail, controller, support, etc. provides the advantage of requiring less space for storage and making it convenient to transport.

[Brief explanation of the drawing]

FIG. 1A is a perspective view of the walking training machine according to the present invention when in use, FIG. 1B is a perspective view of the walking training machine according to the present invention in a folded state, FIG. 2 is a sectional view of the variable speed drive device according to the present invention, and FIG. The figure is a perspective view of the first embodiment of the running belt inclination adjusting device according to the present invention, FIG. 4 is a perspective view of the second embodiment of the running belt inclination adjusting device according to the present invention, and FIG. Perspective view of one-touch connector for vessel support and handrail, No. 5B
The figure is a sectional view taken along the line A--A in FIG. 5A. 1... Track stand, 2... Support, 3... Handrail, 11... Main body, 12... Running belt, 13...
... variable speed drive device, 131 ... triangular belt transmission,
134...Sun gear, 136...Planetary gear train, 1
37...Ring gear, 4, 14...Inclination adjustment device, 141...Threaded rod, 142a...Nut, 1
42b... Joint arm, 22... Claw, 23...
Coupler, M...constant speed motor, m...forward/reverse motor.

Claims (1)

[Scope of Claim for Utility Model Registration] A track base, a running belt movably attached to the track base, a planetary gear mechanism including a sun gear, a planetary gear train, and a ring gear, rotating at a constant speed and rotating on one side. a constant speed motor whose rotational power is transmitted to the sun gear via the output shaft of the constant speed motor; and a triangular belt transmission which relays the rotational power to the planetary gear train via the other output shaft of the constant speed motor. , the rotational power of the difference in rotational speed between the sun gear and the planet gear is transmitted to the running belt via the ring gear, and the control unit of the transmission is pushed or pulled to move the running belt from zero speed. A variable speed drive device equipped with a forward and reverse motor that smoothly changes speed up to the maximum speed, and 1 to 2 installed at the lower front side of the track base
A set of threaded rods with reverse thread grooves, and a V-type or
a type of articulated arm, the upper ends of the articulated arms are brought closer or separated by rotation of the threaded rod to change the spread angle of the arms, thereby adjusting the inclination of the running belt. an adjusting device; a column pivotably supported on the front side of the track base;
An automatic walking training machine comprising a molded handrail and a connecting structure that can be connected to the handrail and support with one touch, or can be folded onto the track base after separation.