# US 12,214,248 B2 · Left and right oscillation width adjustment and rotation structure of stationary bike saddle

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- Number: US 12,214,248 B2
- Document ID: US12214248B2
- Status: Granted
- Kind: B2
- Application number: 17/917,836
- Filed: 2021-04-07
- Published: 2023-05-25
- Granted: 2025-02-04
- Earliest claimed: 2020-04-10
- Applicants: Woo Sik Jun
- Inventors: Woo Sik Jun
- Web page: https://patentgrep.com/patent/US12214248B2

## CPC

- A63B 22/0087: {with a seat or torso support moving during the exercise, e.g. reformers (A63B22/0076 takes precedence)}
- A63B 22/0605: {performing a circular movement, e.g. ergometers}
- A63B 22/0046: {Details of the support elements or their connection to the exercising apparatus, e.g. adjustment of size or orientation (attachments of resisters or weights to the body of the user A63B21/4001; using rollers, wheels, castors or gliding means to be moved over the floor or guide tracks A63B22/20)}
- A63B 22/16: Platforms for rocking motion about a horizontal axis {, e.g. axis through the middle of the platform}; Balancing drums; Balancing boards or the like {(exercising apparatus with cantilevered support elements pivoting about an axis A63B22/0056; other exercising apparatus for improving balance A63B26/003)}
- 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 2022/0635: {specially adapted for a particular use}
- A63B 2022/0641: {enabling a lateral movement of the exercising apparatus, e.g. for simulating movement on a bicycle}
- A63B 2071/0063: {Shock absorbers}
- A63B 2225/09: Adjustable dimensions
- A63B 2225/093: Height
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

Disclosed is a right and left oscillation width adjustment and rotation structure of a stationary bike saddle, which enables a user to directly perform adjustment to correspond to the range of motion of the hip joint while inducing the buffering action of the left and right oscillations of the saddle and the dispersed load when the user sits on the saddle of the stationary bike and pedals thereon, the structure includes: a buffering part which is disposed on the bottom surface of a saddle member to relieve the load and left and right oscillations dispersed by the user's pedaling operation; a left and right moving part which is coupled to the buffering part to perform a left and right sliding motion; a forward and backward moving part which is coupled to the left and right moving part to perform a forward and backward sliding motion; and an eccentric rotating part.

## Claims

### Claim 1

A left and right oscillation width adjustment and rotation structure of a stationary bike saddle, capable of adjusting a height of the stationary bike saddle by a height adjustment bar (7), the rotation structure of the stationary bike saddle comprising:
a buffering part (100) which is disposed on a bottom surface of the saddle member (8) to relieve left and right oscillations and a load dispersed by a pedaling operation of the user; a left and right moving part (200) which is coupled to the buffering part to perform a left and right sliding motion;
a forward and backward moving part (300) which is coupled to the left and right moving part (200) to perform a forward and backward sliding motion; and
an eccentric rotating part (400) to which the left and right moving part (300) and the forward and backward moving part (300) are coupled and which is rotated eccentrically to simultaneously control the sliding motion of each moving part,
wherein an eccentric rotation radius of the eccentric rotating part (400) is configured to be extended or reduced according to a user's selection, and the left and right sliding motion and the forward and backward sliding motion are controlled according to an adjusted rotation radius, the eccentric rotating part (400) includes:
a fixing plate (410) which is kept in position while surrounding an outer peripheral surface of the height adjustment bar (7);
a rotation connecting part (420) which extends from the fixing plate and includes a protruding part (422) protruding upward from a set position; and
a rotation adjusting part (430) which is coupled to the protruding part (422) of the rotation connecting part (420) and configured to extend and reduce the rotation radius while rotating eccentrically in a state in which the coupling is maintained, and the rotation adjusting part (430) includes: a body (431) which is coupled to the rotation connecting part (420) and formed with a hollow region having a set length;
a full threaded bolt (432) which passes through a central part of the body in a longitudinal direction; a gripping part (433) which extends or protrudes left and right from an end part of the full threaded bolt or is formed with a key groove to rotate a key left and right; and
a position adjusting part (434) which is disposed in the hollow region of the body and fastened to the full threaded bolt so that a position thereof in the hollow region of the body is changed by a thread as the full threaded bolt is rotated through manipulation of the gripping part.