# US 12,005,295 B2 · Exercise machine arm with single-handed adjustment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,005,295 B2 - Document ID: US12005295B2 - Status: Granted - Kind: B2 - Application number: 17/504,022 - Filed: 2021-10-18 - Published: 2022-04-21 - Granted: 2024-06-11 - Earliest claimed: 2020-10-19 - Assignees: Tonal Systems, Inc. - Applicants: Tonal Systems, Inc. - Inventors: Mark Peter McNally; Michael Valente; Anya Richardson Quenon; Patricia Holloway Howes; Scott Thomas Rider; Daniel Jordan Kayser; David Mallard; David Jonathan Zimmer; Maxwell Walter Davis - Web page: https://patentgrep.com/patent/US12005295B2 ## CPC - A63B 21/153: {wound-up and unwound during exercise, e.g. from a reel} - A63B 21/0058: {using motors} - A63B 21/159: {Using levers for transmitting forces} - 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 21/169: {for anchoring on or against a wall} - A63B 21/4035: {for operation by hand} - A63B 21/4047: {Pivoting movement (weight pivoting A63B21/0615)} - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract An exercise device includes a resistance unit having a connecting gear. It further includes a cable. It further includes an arm that routes the cable to an actuator. The arm is rotatable relative to the resistance unit about the connecting gear, the arm having a central axis. The arm includes a control that mechanically disengages a locking mechanism from the connecting gear. The control is activated by an activation force substantially directed either toward the central axis of the arm, along a length of the arm, or about the central axis. The activation force is mechanically converted into linear force along the arm that disengages the locking mechanism from the connecting gear. ## Claims ### Claim 1 An exercise device, comprising: a resistance unit having a first connecting gear and a second connecting gear; and an arm being rotatable relative to the resistance unit about the first connecting gear, the arm having a central axis; wherein the arm mechanically disengages a locking mechanism from a third connecting gear; wherein the arm is activated by an activation force directed either along a length of the arm or about the central axis; wherein the activation force is mechanically converted into a linear force along the arm that disengages the locking mechanism from the third connecting gear; and wherein a lever is connected to a linkage that is connected to a second arm, wherein linkage is connected to the first connecting gear that is connected to the second connecting gear, the second connecting gear being connected to the second arm, wherein the lever is configured to be pressed down such that the lever rotates the linkage causing the second arm to rotate, and wherein the second arm is configured to rotate such that the second arm pulls out the locking mechanism that is engaged with the third connecting gear. ### Claim 2 (depends on 1) The exercise device of claim 1, wherein the arm comprises the lever, and wherein the lever is activated by pushing down on an end of the lever. ### Claim 3 (depends on 2) The exercise device of claim 2, wherein the activation force rotates the lever, wherein the locking mechanism is connected to a portion of the lever, and wherein rotation of the lever causes linear travel of the locking mechanism that disengages the locking mechanism from the third connecting gear. ### Claim 4 (depends on 2) The exercise device of claim 2, wherein the activation force rotates the lever, and wherein the arm comprises the linkage coupled to the lever that converts rotation of the lever into linear travel of the locking mechanism that disengages the locking mechanism from the third connecting gear. ### Claim 5 (depends on 4) The exercise device of claim 4, wherein the linkage comprises two rotation points and a fixed axis. ### Claim 6 (depends on 5) The exercise device of claim 5, wherein a first rotation point is coupled to the lever, and wherein a second rotation point is coupled to a rod that is connected to the locking mechanism. ### Claim 7 (depends on 4) The exercise device of claim 4, wherein the arm comprises two balanced linkages coupled to the lever. ### Claim 8 (depends on 7) The exercise device of claim 7, wherein the balanced linkages are coupled to the locking mechanism via a split rod. ### Claim 9 (depends on 2) The exercise device of claim 2, wherein the activation force rotates the lever. ### Claim 10 (depends on 2) The exercise device of claim 2, wherein the activation force rotates the lever, and wherein the arm is coupled to the first and second connecting gears that converts rotation of the lever into linear travel of the locking mechanism that disengages the locking mechanism from the third connecting gear. ### Claim 11 (depends on 1) The exercise device of claim 1, wherein the activation force is mechanically converted into the linear force along the arm via a wedge coupled to the locking mechanism, and wherein activation of a button causes the wedge to travel in a direction that causes the locking mechanism to disengage from the third connecting gear. ### Claim 12 (depends on 1) The exercise device of claim 1 wherein the activation force is mechanically converted into the linear force along the arm via the second connecting gear, wherein an extension arm is coupled to the second connecting gear, wherein the locking mechanism is coupled to the extension arm, and wherein activation of a button causes the second connecting gear to rotate, disengaging the locking mechanism from the third connecting gear. ### Claim 13 (depends on 1) The exercise device of claim 1, wherein the activation force is mechanically converted into the linear force along the arm via the linkage, wherein the linkage is coupled to a bar that is coupled to the locking mechanism, and wherein activation of a button causes the linkage to sweep the bar, disengaging the locking mechanism from the third connecting gear.