# US 11,896,868 B2 · Rowing machine exercise device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,896,868 B2
- Document ID: US11896868B2
- Status: Granted
- Kind: B2
- Application number: 18/065,853
- Filed: 2022-12-14
- Published: 2023-04-20
- Granted: 2024-02-13
- Earliest claimed: 2020-03-09
- Assignees: Exemplar Design, LLC
- Applicants: Exemplar Design, LLC
- Inventors: Adam L. Ross
- Web page: https://patentgrep.com/patent/US11896868B2

## CPC

- A63B 22/0076: {Rowing machines for conditioning the cardio-vascular system (seats moving during exercise A63B22/0087; training appliances for rowing or sculling on boats A63B69/06)}
- A63B 21/153: {wound-up and unwound during exercise, e.g. from a reel}
- A63B 22/0015: {with an adjustable movement path of the support elements}
- A63B 22/0087: {with a seat or torso support moving during the exercise, e.g. reformers (A63B22/0076 takes precedence)}
- A63B 23/12: for upper limbs {or related muscles, e.g. chest, upper back or shoulder muscles (bench press exercises A63B21/078; for teaching music G09B15/06)}
- A63B 21/068: using user's body weight
- A63B 2022/0079: {with a pulling cable}
- 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

A rowing machine exercise device includes a vertically adjustable rear support base. The vertically adjustable rear support base includes an outer vertical support beam coupled to and extending down from the rowing machine frame, where the outer vertical support beam has a vertical channel extending upward therein from a bottom of the outer vertical support beam and has a latch pin hole extending through a wall of a bottom portion of the vertical support beam; an inner vertical support beam received in a telescoping manner within the outer support beam through the bottom of the outer support beam, where the inner vertical support beam has a plurality of adjustment holes uniformly spaced along a vertical line in an outer wall of the inner vertical support beam.

## Claims

### Claim 1

A rowing machine exercise device comprising:
a rowing machine frame having a forward support base and an opposed rear support base;
a rewinder mounted to the rowing machine frame;
a pull rope attached to the rewinder at a first end and attached to a pull bar at an opposite end;
at least one foot rest panel mounted to the rowing machine frame; and
a seat mounted for reciprocating movement along the rowing machine frame towards and away from the at least one foot rest panel;
wherein the rear support base is vertically adjustable and includes,
an outer vertical support beam coupled to and extending down from the rowing machine frame, having a vertical channel extending upward therein from a bottom of the outer vertical support beam and having a latch pin hole extending through a wall of a bottom portion of the outer vertical support beam,
an inner vertical support beam received in a telescoping manner within outer support beam through the bottom of the outer support beam, the inner vertical support beam having a plurality of adjustment holes uniformly spaced along a vertical line in an outer wall of the inner vertical support beam, the vertical line being horizontally aligned with the latch pin hole in the outer vertical support beam,
a foot structure coupled to bottom of the inner vertical support beam, and
a latch pin assembly mounted to the outer vertical support beam, the latch pin assembly including a latch pin biased to extend through the latch pin hole and any of the plurality of adjustment holes that are vertically aligned with the latch pin hole, and the latch pin assembly including an actuating tab that overcomes a bias to pull the latch pin from the latch pin hole and the any of the plurality of adjustment holes that are vertically aligned with the latch pin hole when actuated;
wherein the latch pin assembly includes a lever pivotally mounted to the outer vertical support beam, wherein the lever has an actuating end that includes the actuating tab and an opposite engagement end that includes the latch pin;
wherein the lever is z-shaped in cross-section taken along the vertical line; and
wherein the lever is at least partially contained in a container mounted to the outer vertical support beam, the container including an outer wall, and the bias comprising a spring positioned between the outer wall of the container and a portion of the lever approximate the latch pin.

### Claim 2 (depends on 1)

The rowing machine exercise device of claim 1, wherein the plurality of adjustment holes includes a bottom-most hole and a top-most hole, and wherein the latch pin hole is vertically aligned with the bottom-most hole when the inner vertical support beam is fully received within the outer vertical support beam.

### Claim 3 (depends on 1)

The rowing machine exercise device of claim 1, wherein the plurality of adjustment holes comprise at least five adjustment holes.

### Claim 4 (depends on 1)

The rowing machine exercise device of claim 1, wherein the latch pin hole and the plurality of adjustment holes are wider than their vertical height, and the latch pin has a corresponding wider than high shape so that the latch pin securely fits within a vertically aligned pair of the latch pin hole and one of the plurality of adjustment holes.

### Claim 5

A rowing machine exercise device comprising:
a rowing machine frame having a forward support base approximate a forward end of the rowing machine frame and a rear support base approximate an opposite end of the rowing machine frame;
a resistance mechanism mounted to the rowing machine frame and operatively coupled to at least one hand grip providing resistance of the at least one hand grip moving forward or rearward with respect to the rowing machine frame;
at least one foot support mounted to the rowing machine frame; and
a seat mounted for reciprocating movement along the rowing machine frame towards and away from the at least one foot support;
wherein the rear support base is vertically adjustable and includes,
an outer vertical support beam coupled to and extending down from the rowing machine frame, having a vertical channel extending upward therein from a bottom of the outer vertical support beam and having a latch pin hole extending through a wall of a bottom portion of the outer vertical support beam,
an inner vertical support beam received in a telescoping manner within outer support beam through the bottom of the outer support beam, the inner vertical support beam having a plurality of adjustment holes uniformly spaced along a vertical line in an outer wall of the inner vertical support beam, the vertical line being horizontally aligned with the latch pin hole in the outer vertical support beam, and
a latch pin assembly mounted to the outer vertical support beam, the latch pin assembly including a latch pin biased to extend through the latch pin hole and any of the plurality of adjustment holes that are vertically aligned with the latch pin hole, and the latch pin assembly including an actuating tab that overcomes a bias to pull the latch pin from the latch pin hole and the any of the plurality of adjustment holes that are vertically aligned with the latch pin hole when actuated;
wherein the latch pin assembly includes a lever pivotally mounted to the outer vertical support beam;
wherein the lever has an upper horizontal segment that includes the actuating tab, an opposite lower horizontal segment that includes the latch pin, and a vertical segment connecting the upper horizontal segment and the lower horizontal segment; and
wherein the latch pin assembly includes a pivot pin positioned at an intersection of the upper horizontal segment and the vertical segment.

### Claim 6

A rowing machine exercise device comprising:
a rowing machine frame having a forward support base approximate a forward end of the rowing machine frame and a rear support base approximate an opposite end of the rowing machine frame;
a rewinder mounted to the rowing machine frame;
a pull rope attached to the rewinder at a first end and attached to a pull bar at an opposite end;
at least one foot rest panel mounted to the rowing machine frame; and
a seat mounted for reciprocating movement along the rowing machine frame towards and away from the at least one foot rest panel;
wherein the rear support base is vertically adjustable and includes,
an outer vertical support beam having a vertical channel extending therein and having a latch pin hole extending through a wall of a the outer vertical support beam,
an inner vertical support beam received in a telescoping manner within outer support beam, the inner vertical support beam having a plurality of adjustment holes uniformly spaced along a vertical line in an outer wall of the inner vertical support beam, the vertical line being horizontally aligned with the latch pin hole in the outer vertical support beam, and
a latch pin assembly mounted to the outer vertical support beam, the latch pin assembly including a latch pin biased to extend through the latch pin hole and any of the plurality of adjustment holes that are vertically aligned with the latch pin hole, and the latch pin assembly including an actuating tab that overcomes a bias to pull the latch pin from the vertically aligned latch pin hole and the any of the plurality of adjustment holes that are vertically aligned with the latch pin hole when actuated;
wherein the latch pin assembly includes a lever pivotally mounted to the outer vertical support beam;
wherein the lever has an upper horizontal segment that includes the actuating tab, an opposite lower horizontal segment that includes the latch pin, and a vertical segment connecting the upper horizontal segment and the lower horizontal segment; and
wherein the latch pin assembly includes a pivot pin positioned at an intersection of the upper horizontal segment and the vertical segment.