# US 2018/0021626 A1 · Body Weight Exercise Assembly Configured to Accept Various Discipline Attachments > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0021626 A1 - Document ID: US20180021626A1 - Status: Published application - Kind: A1 - Application number: 15/656,013 - Filed: 2017-07-21 - Published: 2018-01-25 - Earliest claimed: 2016-07-22 - Inventors: Donald Kilmon - Web page: https://patentgrep.com/patent/US20180021626A1 ## CPC - A63B 23/1218: {Chinning, pull-up, i.e. concentric movement} - A63B 7/00: Freely-suspended gymnastic apparatus - A63B 21/068: using user's body weight - A63B 21/1618: {on a door or a door frame} - A63B 21/1636: {for anchoring on the horizontal part of a door frame} - A63B 21/4035: {for operation by hand} - A63B 21/4049: {Rotational movement} - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract Disclosed is an exercise device having an elongated body, a slot formed length-wise in the body, the slot having an undercut portion on each side, a plurality of holes in slot for receiving one of a plurality of fasteners, an exercise accessory having a connecting member, and a head of the connecting member, the head sized to be received in the slot of the body and configured to be slidably retained in the slot. The slot can have undercut portions. The undercut portions can have locking features. The head of the connecting member can have complimentary locking features. A tightening member can fix the connecting member in a position in the slot. The elongated body can have a cutout for receiving the head of the connecting member. ## Claims ### Claim 1 An exercise device, comprising: an elongated body; a slot formed length-wise in the body, the slot having an undercut portion on each side; a plurality of holes in slot for receiving one of a plurality of fasteners; an exercise accessory having a connecting member; a head of the connecting member, the head sized to be received in the slot of the body and configured to be slidably retained in the slot; a shaft connected to the head of the connecting member; and a tightening member disposed on the shaft of the connecting member, the tightening member configured to squeeze the undercut portions of the slot between the head of the connecting member and the tightening member. ### Claim 2 (depends on 1) The device of claim 1 further comprising a locking structure formed in the undercut portions of the slot; ### Claim 3 (depends on 2) The device of claim 2 further comprising a mating locking structure of the connecting member. ### Claim 4 (canceled) ### Claim 5 (depends on 3) The device of claim 3 further comprising a recessed portion of the tightening member. ### Claim 6 (depends on 3) The device of claim 3 further comprising a spring on a shaft of the connecting member. ### Claim 7 (depends on 6) The device of claim 6 wherein the spring is disposed between the mating locking structure and the tightening member. ### Claim 8 (depends on 1) The device of claim 1 further comprising a cutout in the slot for receiving the head of the connecting member ### Claim 9 (depends on 1) The device of claim 1 wherein the slot is a T-slot. ### Claim 10 (depends on 8) The device of claim 8 wherein the slot extends to a first and a second end of the body. ### Claim 11 (depends on 1) The device of claim 1 wherein body is formed from extruded aluminum. ### Claim 12 (depends on 1) The device of claim 1 further comprising a washer on the connecting member for distributing a force applied by the head of the connecting member to the slot. ### Claim 13 An exercise device, comprising: an elongated body having a top surface for attaching to a doorframe and a bottom surface; a T-slot formed length-wise in the bottom surface of the body, the T-slot having an undercut portion on each side; a plurality of holes in a bottom of the T-slot and extending to the top surface of the body, the plurality of holes for receiving one of a plurality of fasteners to fasten the body to the door frame; an exercise accessory having a connecting member; and a cutout in the T-slot on the bottom surface of the body for receiving a head of the connecting member, the cutout sized in relative proportions to allow the head of the connecting member to pass therethrough and the head of the connecting member sized to be received in the T-slot of the body and configured to be slidably retained in the T-slot; and wherein the T-slot extends between a first end and a second end of the body. ### Claim 14 (depends on 13) The device of claim 13 further comprising a locking structure formed in the undercut portions of the slot; ### Claim 15 (depends on 14) The device of claim 14 further comprising a mating locking structure of the connecting member. ### Claim 16 (depends on 13) The device of claim 13 further comprising a washer on the connecting member for distributing a force applied by the head of the connecting member to the slot. ### Claim 17 (depends on 16) The device of claim 16 wherein the washer includes a rubber-like material. ### Claim 18 A exercise device for mounting in a doorframe, the device comprising: an elongated body; a top surface of the elongated body for connecting to the doorframe; a bottom surface of the elongated body; a slot formed in the elongated body, the slot extending from a first end of the elongated body to a second end of the elongated body; a first undercut portion formed on a first side of the slot; a second undercut portion formed on a second side of the slot; a first and second holes formed in a bottom of the slot and extending through to the top surface of the elongated body, each of the first and second holes for receiving a first and second fastener, respectively; a cutout in the bottom surface of the elongated body exposing a portion of the first and second undercut portions; a connector for attaching an exercise accessory to the elongated body; a head portion of the connector, the head portion sized in approximate proportion to be received in the cutout in the elongated body and slidably retained by the first and second undercuts of the slot; a shaft having a first end connected to the head; and a tightening member connected to a second end of the shaft. ### Claim 19 (depends on 18) The exercise device of claim 18 further comprising: a locking structure of the elongated body, the locking structure formed on at least one of the first and second undercut portions of the slot; and a mating locking structure of the connector, the mating locking structure configured to interface with the locking structure of the one of the first and second undercuts. ### Claim 20 (depends on 18) The device of claim 18 further comprising a washer on the connector for distributing a force applied by the tightening member to the slot wherein the washer includes a rubber-like material.