Lower limb exercise device and lower limb exercise system

Patent metadata

Field	Value
Publication number	US-12390684-B2
Application number	US-202318378198-A
Country	US
Kind code	B2
Filing date	Oct 10, 2023
Priority date	Nov 1, 2022
Publication date	Aug 19, 2025
Grant date	Aug 19, 2025

Abstract

A lower limb exercise device that enables a user to perform a lower limb exercise effectively is achieved. A lower limb exercise device according to one embodiment of the present disclosure enables a user to perform a lower limb exercise while the user is seated on a chair. The lower limb exercise device includes exercise equipment for the user to perform the lower limb exercise, and a restriction mechanism configured to restrict movement of at least one caster of the chair from a reference arrangement range of the caster during the lower limb exercise.

First claim

What is claimed is:

1. A lower limb exercise device for enabling a user to perform a lower limb exercise while the user is seated on a chair, the lower limb exercise device comprising:
exercise equipment for the user to perform the lower limb exercise; and
a restriction mechanism configured to restrict movement of at least one caster of the chair from a reference arrangement range of the caster during the lower limb exercise,
wherein the restriction mechanism includes a contact part where the caster that moves away from the exercise equipment is brought into contact,
wherein a position of the contact part relative to the exercise device is constrained in a region on a side moving away from the exercise equipment in a front-rear direction of the lower limb exercise device,
wherein an upper end of the contact part is arranged higher than a center of the caster with the caster arranged inside the reference arrangement range and the contact part arranged at an uppermost position, and
wherein the contact part is a movable plate that can move in an up-down direction of the lower limb exercise device and is energized upward of the lower limb exercise device.

2. The lower limb exercise device according to claim 1 , wherein an upper part of the restriction mechanism is open.

3. The lower limb exercise device according to claim 1 , wherein the restriction mechanism is capable of adjusting a position of the reference arrangement range of the caster in the front-rear direction.

4. The lower limb exercise device according to claim 3 , wherein the position of the reference arrangement range of the caster is made adjustable in the front-rear direction by providing a plurality of the restriction mechanisms in the front-rear direction of the lower limb exercise device.

5. The lower limb exercise device according to claim 3 , wherein the position of the reference arrangement range of the caster is made adjustable in the front-rear direction by moving the restriction mechanism in the front-rear direction of the lower limb exercise device.

6. The lower limb exercise device according to claim 1 , wherein a plurality of the contact parts are arranged in the front-rear direction of the lower limb exercise device.

7. The lower limb exercise device according to claim 1 , wherein the restriction mechanism is detachable from the exercise equipment.

8. A lower limb exercise system comprising:
the lower limb exercise device according to claim 1 ; and
the chair.

9. The lower limb exercise system according to claim 8 , wherein
the exercise equipment comprises:
a pair of left and right pedals on which the user's feet are placed; and
a rotation mechanism configured to rotate the pedals by the user's feet pushing down the pedals.

10. A lower limb exercise device for enabling a user to perform a lower limb exercise while the user is seated on a chair, the lower limb exercise device comprising:
exercise equipment for the user to perform the lower limb exercise; and

a restriction mechanism configured to restrict movement of at least one caster of the chair from a reference arrangement range of the caster during the lower limb exercise,
wherein the restriction mechanism includes a grounding part of the caster, a position of the grounding part relative to the exercise equipment is constrained in a region on a side moving away from the exercise equipment in a front-rear direction of the lower limb exercise equipment, and a frictional force on the side moving away from the exercise equipment is greater than a frictional force on the side of the exercise equipment,
wherein the grounding part includes a projection that is inclined upward of the lower limb exercise device toward the exercise equipment, and
wherein the projection is made of an elastic body and a plurality of the projections are arranged in the front-rear direction of the lower limb exercise device.

Assignees

• Toyota Motor Co Ltd

Inventors

• Aoki Eisuke
• Ikeda Tomio
• Odashima Tadashi
• Takeda Takahiro

Classifications

• A63B2225/09

  Adjustable dimensions · CPC title

• A63B2208/0233

  in 90/90 position, like on a chair · CPC title

• A63B21/1609

  for anchoring on a chair (chairs with exercising means A47C9/002) · CPC title

• A63B22/0694 Primary

  without integral seat, e.g. portable mini ergometers being placed in front of a chair, on a table or on a bed · CPC title

• A63B21/4034

  for operation by feet · CPC title