JP2011147574A5 - - Google Patents

Description

Rotation control function Walking movement auxiliary cane with wheels.

  The present invention relates to a walking movement assisting wand with a rotation control function wheel to which a rotation direction control function device capable of rotating in one direction and preventing reverse rotation is added to a ground wheel at the tip of a wand.

  In general, a walking stick assists walking movement by grounding a grounding part such as a rubber cover at the tip of the walking stick. Therefore, many walking sticks have been put to practical use as life assistance tools indispensable for daily life, whether indoors or outdoors, for weak walkers.

However, regardless of the one-point support or multi-point support specifications for the tip of the cane, it is difficult and painful for users who have weakened their physical strength, such as muscle strength, requiring an operation such as lifting the tip of the tip of the cane slightly every time they move. Along with this, there was a safety-related problem such as dragging the tip of the cane.
Japanese Patent No. 3822297 Walking car (walker) silver car

  The problem to be solved is that the user can move forward or follow without a sense of resistance without lifting or dragging the grounding part of the tip of the cane in accordance with walking. It is the point which does not have the function which secures a fixed position while moving and supports, and enables walk movement assistance.

In the present invention, a rotatable wheel is attached to the grounding portion of the cane tip, and the grounding wheel has a slight rotational resistance only in one direction, but can be rotated, but the rotational direction prevents reverse rotation. A control function device is added.
As one of the means, a claw portion that is provided in a grounding wheel at the tip of the cane so as to be freely accessible through a cylinder part that constitutes a claw part holding portion that is fixedly mounted with a shaft that can rotate the grounding wheel as a central axis; The main feature is that it has a ratchet function consisting of a ring gear with a claw tooth part that is integrally formed in a grounding wheel that is attached to the tip of a cane and has a serrated claw tooth part that meshes with this claw part. Features.
This achieves the purpose of transmitting an intermittent one-way rotational motion that constitutes a slight rotational resistance force between the engaging claw portion and the claw tooth portion to the rotation of the wand tip grounding wheel.

  The walking movement assisting cane with the rotation control function wheel of the present invention can be rotated with a slight rotational resistance force only in one direction to the grounding wheel provided at the tip of the cane, but the rotation in the reverse direction is prevented. The addition of the rotation direction control function device is different from the conventional sense of use using the cane rubber grounding part, and it is easy to perform sensory operations such as forward or follow-up on the ground wheel of the cane under various conditions of use for walking weak people. The walking movement assistance is safe and reliable.

  The rotation direction control function device according to claim 2 is configured to perform intermittent unidirectional rotational motion that can constitute a desired operating resistance force with a ring gear that constitutes a claw tooth portion that meshes with a claw portion that is set on a ground wheel of a wand tip. The structure of the ratchet mechanism that can prevent transmission and rotation in the reverse direction or between the inner race and the outer race set in the grounding wheel at the tip of the cane can smoothly perform the operation desired by the vulnerable person The one-way clutch structure is excellent in functionality that is safe and easy to obtain reliable operability.

  A ring gear that configures a claw tooth portion that meshes with a claw portion that can be freely moved in and out of a claw portion holding portion fixed to a shaft inside a grounding wheel of a rotatable structure attached to a cane tip is integrated with a grounded wheel. The object of providing an embodiment means for transmitting intermittent one-way rotational motion having a slight rotational resistance force to the wheel and preventing reverse rotation was realized with a minimum of members.

  FIG. 1 shows an embodiment of the present invention in which a ratchet mechanism is employed in a rotation direction control function device provided on a grounding wheel attached to the tip of a cane. FIG. FIG. 2 is an explanatory view showing a ratchet mechanism including a claw portion holding portion 2 fixed to a shaft 1 that is provided with a claw portion 2 ′ that can freely come in and out, and FIG. 2 is an explanatory view showing a longitudinal section of FIG. 1. FIG. 3 is an explanatory view of an embodiment of the present invention in which a wheel equipped with a rotation direction control function is used as a double wheel specification with a cane tip.

Since the subject of the present invention is the mounting method of the rotation direction control function device system installed on the ground wheel attached to the tip of the cane, description of the shape configuration of the cane for attaching the wheel to the tip of the cane is omitted. .
This will be described in detail with reference to the drawings.

  A claw holding part 2 fixedly mounted around the shaft 1 in the cane grounding wheel having a rotatable structure around the shaft 1 to which the cane 9 is attached is made of a slightly thick disc-like plate material. The claw portion 2 ′ that holds the cylinder portion 4 and that allows the height to enter and exit from the cylinder portion 4 is held.

  The claw portion holding portion 2 is sandwiched between the claw portion holding portion 2 and a wheel 7 ′ in which a rotatable rubber tire portion 8 is attached to the other side with a rotatable left and right hub 7 as a rotating shaft portion. A ring gear 6 with a claw tooth portion 6 ′ that forms a sawtooth claw tooth portion 6 ′ that meshes with a claw portion 2 ′ that can be freely inserted and removed is integrally constructed and attached.

  The claw portion 2 ′ has a rod portion 3 ′ with a flange portion 3, and moves up and down without departing from the inside of the cylinder portion 4 via a coil spring 5 provided between the lower portion of the flange portion 3 and the bottom portion of the cylinder portion 4. Only the claw portion of a length that engages with the claw tooth portion 6 ′ is movable and can be moved in and out of the cylinder portion 4.

In this case, the claw portion 2 ′ pushed up via the spring force formed by the coil spring 5 is always meshed with the claw tooth portion 6 ′ formed on the ring gear 6, but the rubber tire portion 8. An inclined surface that is combined with an inclined surface formed on one side by the saw-toothed claw tooth portion 6 ′ by the rotation of the claw tooth portion 6 ′ of the ring gear 6 accompanying the rotation of the wheel 7 ′ rotating through the right side The claw part 2 'having a slidable shape is disengaged from the claw tooth part 6' by being pushed down in a sliding manner. However, the claw part 2 'rises by disengaging from the inclined surface and is reengaged with the claw tooth part 6' to re-engage the rubber tire part. The ratchet function that prevents the counterclockwise reverse rotation of the wheel 7 'with 8 and transmits intermittent one-way rotational motion is ensured.
At this time, since a predetermined resistance is constituted by the spring force of the coil spring 5 acting on the claw portion 2 ′ and the claw tooth portion 6 ′ even in the unidirectional rotational motion, the predetermined rotational motion is predetermined. It can have some resistance.

By increasing the number of teeth of the claw tooth portion 6 ′ engaged with the claw portion 2 ′ as much as possible, it is possible to expect a small-lattice effect under various rotation conditions of the wheel 7 ′.
In addition, the rubber tire portion 8 is formed by arranging the ground wheel at the tip of the cane, for example, with a plurality of wheels provided with the rotational direction control function device on the left and right around the cane 9 fixedly attached to the shaft 1 of the central axis. In addition to the characteristics of the

  This is one of the effective methods that can be expected in walking aids that use a ground wheel at the tip of the cane, and can be applied to various applications such as social life and independence support as well as rehabilitation medicine.

In one embodiment of the walking movement assisting cane with a rotation control function wheel according to the present invention, in which the rotation direction control function device provided on the grounding wheel of the cane is employed, the claw meshing with the claw tooth portion 6 ′ installed in the grounding wheel It is explanatory drawing which shows the combination structure of the principal part in claw part holding | maintenance part 2 with part 2 '. Example 1 It is a longitudinal cross-sectional view of FIG. Example 1 It is explanatory drawing which shows the example of a specification which has arrange | positioned the wheel provided with a rotation direction control function apparatus on either side centering on the cane. Example 1

DESCRIPTION OF SYMBOLS 1 Shaft 2 Claw part holding | maintenance part 2 'Claw part 3 Claw part 3' Rod part 4 Cylinder part 5 Coil spring 6 Ring gear 6 'Claw tooth part 7 Hub 7' Wheel 8 Rubber tire part 9 Cane

Claims (2)

  Rotation control function characterized in that a rotation direction control function device is added to the ground wheel at the tip of the wand, which allows rotation with a slight rotational resistance only in one direction, but prevents rotation in the reverse direction. A walking aid with wheels. The rotation direction control function device according to claim 1 includes a claw portion that is movably provided on a claw portion holding portion that is fixedly mounted on a shaft having a grounding wheel of a cane that is rotatable, and a claw tooth portion that meshes with the claw portion. A ring gear with a claw tooth portion that is integrally formed in a wand tip grounding wheel having a rotatable structure and a ratchet mechanism or a wand tip grounding wheel that can be configured with a desired operating resistance force. A one-way clutch structure provided between an inner race and an outer race set in the grounded wheel via a shaft that makes a desired resistance during operation. The walking movement auxiliary cane with a rotation control function wheel according to claim 1.