# US 8,464,628 B2 · Attachment mechanisms for coupling firearms to supporting structures > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,464,628 B2 - Document ID: US8464628B2 - Status: Granted - Kind: B2 - Application number: 12/916,129 - Filed: 2010-10-29 - Published: 2011-02-17 - Granted: 2013-06-18 - Earliest claimed: 2007-09-11 - Assignees: Battenfeld Technologies, Inc. - Applicants: Russell A. Potterfield; Tim Kinney; Dennis Cauley; Yan-Jiang Zhou - Inventors: Russell A. Potterfield; Tim Kinney; Dennis Cauley; Yan-Jiang Zhou - Web page: https://patentgrep.com/patent/US8464628B2 ## CPC - F41A 23/08: Bipods - F41G 11/004: {Mountings with clamping means on the device embracing at least a part of the firearm, e.g. the receiver or a dustcover (F41G11/003 takes precedence)} - F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE - F41G: WEAPON SIGHTS; AIMING (optical aspects thereof G02B) ## Abstract Attachment mechanisms for attaching firearms to support structures are disclosed herein. In one embodiment, an attachment mechanism for attaching a firearm to a support structure includes an interface member coupled to a latching subassembly. The latching subassembly includes having an attachment portion and a latching arm. The attachment portion is configured to engage a connector fastened to the firearm through the aperture, and the latching arm lockably retains the attachment portion proximate to the interface member. ## Claims ### Claim 1 An attachment mechanism for attaching a firearm to a support structure, comprising: an interface member having an aperture and first side opposite a second side, wherein the first side is configured to contact the firearm; and a latching subassembly proximate to the interface member, the latching assembly including— an attachment portion configured to engage a connector extending from the firearm through the aperture; and a latching arm coupled to the attachment portion and movable about a latching axis, the latching arm having an end portion including a cam structure configured to contact the second side of the interface member, and wherein the cam structure has a latching aperture through which the latching axis passes, and wherein the cam structure is at least partially eccentric relative to the latching axis. ### Claim 2 (depends on 1) The attachment mechanism of claim 1 wherein the latching arm pivots about the latching axis from an open position to a closed position to lockably engage the second side of the interface member and to secure the first side of the interface member against the firearm. ### Claim 3 (depends on 1) The attachment mechanism of claim 1 wherein the attachment portion includes a shaft having a shaft axis extending longitudinally along the shaft, wherein the shaft axis is generally perpendicular to the latching axis. ### Claim 4 (depends on 1) The attachment mechanism of claim 1 wherein the cam structure includes a first cam structure spaced apart from a second cam structure. ### Claim 5 (depends on 4) The attachment mechanism of claim 4 wherein each of the first and second cam structures includes a generally flat portion that contacts the second side of the interface member to at least partially secure the interface member against the firearm when the latching arm is in a closed position with reference to the interface member. ### Claim 6 (depends on 4) The attachment mechanism of claim 4 wherein the latching subassembly further comprises a bushing coupled to the attachment portion, wherein the bushing at least partially extends through each of the first and second cam structures. ### Claim 7 (depends on 6) The attachment mechanism of claim 6 wherein the bushing is rotatably coupled to the shaft and rotates on the shaft, and wherein the latching arm is pivotally coupled to the bushing and the cam structure rotates on the bushing. ### Claim 8 An attachment mechanism for attaching a firearm to a bipod, comprising: an interface member having an aperture; an attachment portion configured to releasably engage a stud extending from the firearm through the aperture; a shaft having a first end portion coupled to the attachment portion and a second end portion opposite the first end portion, the shaft having a longitudinal axis; a bushing coupled to the second end portion of the shaft; and a latching arm coupled to the bushing, wherein the latching arm moves about a latching axis between open and closed positions, wherein the latching axis is generally perpendicular to the longitudinal axis of the shaft, and wherein in the closed position the latching arm at least partially secures the interface member against the firearm wherein the latching arm includes a bushing opening that receives the bushing, and wherein the center of the bushing opening is eccentric with reference to the latching axis. ### Claim 9 An attachment mechanism for attaching a firearm to a bipod, comprising: an interface member having an aperture; an attachment portion configured to releasably engage a stud extending from the firearm through the aperture; a shaft having a first end portion coupled to the attachment portion and a second end portion opposite the first end portion, the shaft having a longitudinal axis; a bushing coupled to the second end portion of the shaft; and a latching arm coupled to the bushing, wherein the latching arm moves about a latching axis between open and closed positions, wherein the latching axis is generally perpendicular to the longitudinal axis of the shaft, and wherein in the closed position the latching arm at least partially secures the interface member against the firearm, wherein the latching arm includes a cam structure that rotates about the bushing, and wherein the cam structure includes a generally planar section that contacts the second surface of the interface member when the latching arm is in the closed position. ### Claim 10 An attachment mechanism for attaching a firearm to a bipod, comprising: an interface member having an aperture; an attachment portion configured to releasably engage a stud extending from the firearm through the aperture; a shaft having a first end portion coupled to the attachment portion and a second end portion opposite the first end portion, the shaft having a longitudinal axis; a bushing coupled to the second end portion of the shaft; and a latching arm coupled to the bushing, wherein the latching arm moves about a latching axis between open and closed positions, wherein the latching axis is generally perpendicular to the longitudinal axis of the shaft, and wherein in the closed position the latching arm at least partially secures the interface member against the firearm wherein the latching arm includes a first cam portion spaced apart from a second cam portion, and wherein the bushing extends laterally between the first cam portion and the second cam portion. ### Claim 11 (depends on 10) The attachment assembly of claim 10 wherein the shaft extends at least partially through the bushing in between the first cam portion and the second cam portion. ### Claim 12 An attachment mechanism for attaching a firearm to a bipod, comprising: an interface member having an aperture; an attachment portion configured to releasably engage a stud extending from the firearm through the aperture; a shaft having a first end portion coupled to the attachment portion and a second end portion opposite the first end portion, the shaft having a longitudinal axis; a bushing coupled to the second end portion of the shaft wherein the bushing includes a threaded opening that receives a threaded portion of the shaft; and a latching arm coupled to the bushing, wherein the latching arm moves about a latching axis between open and closed positions, wherein the latching axis is generally perpendicular to the longitudinal axis of the shaft, and wherein in the closed position the latching arm at least partially secures the interface member against the firearm. ### Claim 13 An attachment mechanism for attaching a firearm to a bipod, comprising: an interface member having an aperture; an attachment portion configured to releasably engage a stud extending from the firearm through the aperture; a shaft having a first end portion coupled to the attachment portion and a second end portion opposite the first end portion, the shaft having a longitudinal axis; a bushing coupled to the second end portion of the shaft wherein the bushing rotates on the shaft about the longitudinal axis, and the latching arm rotates on the bushing about the latching axis; and a latching arm coupled to the bushing, wherein the latching arm moves about a latching axis between open and closed positions, wherein the latching axis is generally perpendicular to the longitudinal axis of the shaft, and wherein in the closed position the latching arm at least partially secures the interface member against the firearm. ### Claim 14 An attachment assembly for securing a firearm to a support structure, the attachment assembly comprising: an interface member configured to contact the firearm, the interface member having an aperture configured to receive a connector extending from the firearm; and a latching subassembly including— an attachment portion configured to releasably engage the connector; a shaft extending from the attachment portion; and a latching arm coupled to the shaft, wherein the latching arm includes a handle at a first end portion and first and second spaced apart forks at a second end portion, and wherein the shaft extends at least partially between the first and second forks wherein the latching arm pivots about a latching axis that is generally perpendicular to the longitudinal axis of the shaft. ### Claim 15 (depends on 14) The attachment assembly of claim 14, further comprising a bushing attached to the shaft, wherein the bushing extends through each of the first and second forks. ### Claim 16 (depends on 15) The attachment assembly of claim 15 wherein the latching arm rotates on the bushing about a latching axis, and wherein each of the first and second forks is eccentric relative to the latching axis. ### Claim 17 (depends on 14) The attachment assembly of claim 14 wherein each of the first and second forks includes a generally flat portion that contacts the interface member to lock the latching subassembly when the latching arm is moved to a closed position with reference to the interface member. ### Claim 18 (depends on 14) The attachment assembly of claim 14 wherein the latching subassembly further comprises a bushing coupled to the shaft and spaced apart from the attachment portion, wherein the bushing extends through at least a portion of the first fork and the second fork.