# US 12,005,305 B2 · Pedaling exercise device

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- Number: US 12,005,305 B2
- Document ID: US12005305B2
- Status: Granted
- Kind: B2
- Application number: 17/709,774
- Filed: 2022-03-31
- Published: 2022-10-20
- Granted: 2024-06-11
- Earliest claimed: 2021-04-14
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Takahiro Takeda; Eisuke Aoki; Tadashi Odashima; Yusuke Ano
- Web page: https://patentgrep.com/patent/US12005305B2

## CPC

- A63B 22/0664: {performing an elliptic movement}
- A63B 22/0694: {without integral seat, e.g. portable mini ergometers being placed in front of a chair, on a table or on a bed}
- A63B 21/0056: {using electromagnetically-controlled friction, e.g. magnetic particle brakes}
- A63B 21/4034: {for operation by feet}
- A63B 22/201: {for moving a support element in reciprocating translation, i.e. for sliding back and forth on a guide track}
- A63B 71/0054: {Features for injury prevention on an apparatus, e.g. shock absorbers (mats or the like for absorbing shocks for jumping A63B6/00)}
- A63B 2022/0688: {with cranks being substantially within the horizontal moving range of the support elements, e.g. by using planetary gearings}
- A63B 2071/0081: {Stopping the operation of the apparatus}
- A63B 2210/50: Size reducing arrangements for stowing or transport
- A63B 2220/16: Angular positions
- A63B 2220/51: Force
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

A pedaling exercise device includes a rotation mechanism configured to pivotally support a rotation shaft to allow rotation, a pair of cranks having first ends connected to both ends of the rotation shaft of the rotation mechanism, respectively, a pair of links having first ends rotatably connected to second ends of the cranks, respectively, and having second ends provided with wheels, respectively, a pair of pedal portions connected to the links along a longitudinal direction of the links, respectively, a rolling surface connected to a first end of the rotation mechanism on a user side, and a restriction portion configured to restrict separation of the wheels from the upper surface of the rolling surface in a case where the first end of the rotation mechanism is lifted such that the rotation mechanism is erected in a state where a second end of the rotation mechanism is grounded.

## Claims

### Claim 1

A pedaling exercise device comprising:
a rotation mechanism configured to pivotally support a rotation shaft to allow rotation;
a pair of cranks having first ends connected to both ends of the rotation shaft of the rotation mechanism, respectively, extending in a radial direction of the rotation shaft, and configured to rotate about the rotation shaft;
a pair of links having first ends rotatably connected to second ends of the cranks, respectively, and having second ends provided with wheels, respectively;
a pair of pedal portions connected to the links along a longitudinal direction of the links, respectively, and configured to rotate in an elliptical orbit about the rotation shaft, respectively, by feet of a user depressing the pedal portions;
a rolling surface connected to a first end of the rotation mechanism on a user side, and having an upper surface on which the wheels roll due to rotation of the pedal portions and reciprocation of the second ends of the links; and
a restriction portion configured to restrict separation of the wheels from the upper surface of the rolling surface in a case where the first end of the rotation mechanism is lifted such that the rotation mechanism is erected in a state where a second end of the rotation mechanism is grounded, wherein
the wheels have a central shaft,
an extension shaft extending in an axial direction is connected to the central shaft of the wheels, and
the restriction portion includes a magnet member provided on the upper surface of the rolling surface in a direction of the reciprocation and configured to attract the extension shaft of the central shaft of the wheels by magnetic force.

### Claim 2 (depends on 1)

The pedaling exercise device according to claim 1, wherein the restriction portion includes:
a groove portion formed on the upper surface of the rolling surface in the direction of the reciprocation; and
a pin member having a first end connected to the extension shaft and a second end hooked on the groove portion, and configured to slide in the groove portion in the direction of the reciprocation.

### Claim 3 (depends on 1)

The pedaling exercise device according to claim 1, wherein the restriction portion includes a connection member configured to put the second ends of the links and the rolling surface into a connected state or a disconnected state.

### Claim 4 (depends on 1)

The pedaling exercise device according to claim 1, wherein:
the rolling surface is provided with a handle portion for lifting the first end of the rotation mechanism; and
the handle portion includes an expansion and contraction mechanism configured to be expanded and contracted in an up-down direction.