IP Library › Granted Patent US 12,390,684
Granted Patent B2
US 12,390,684 · App. 18/378,198 · Granted Aug 19, 2025

Lower limb exercise device and lower limb exercise system

Inventors: Eisuke Aoki (Toyota, JP); Tomio Ikeda (Toyota, JP); Tadashi Odashima (Seto, JP); Takahiro Takeda (Toyota, JP)
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
A63B22/0694A63B2208/0233A63B2225/09
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Quick Facts
Patent No.
US 12,390,684
App. No.
18/378,198
Granted
Aug 19, 2025
Kind
B2
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.

Claims (26)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 13, 2023
From: AOKI, EISUKE; IKEDA, TOMIO; ODASHIMA, TADASHI; TAKEDA, TAKAHIRO
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 065208/0258 →
Priority Claims (1)
JP 2022-175359 · Nov 1, 2022 · national
Continuity (1)
Related Publication 20240139583A1 · May 2, 2024
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