# US 12,007,200 B2 · Foldable dot sight device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,007,200 B2 - Document ID: US12007200B2 - Status: Granted - Kind: B2 - Application number: 18/195,861 - Filed: 2023-05-10 - Published: 2023-09-14 - Granted: 2024-06-11 - Earliest claimed: 2021-04-08 - Assignees: Bo Sun Jeung; Ik Seon Jung - Applicants: Bo Sun Jeung; Ik Seon Jung - Inventors: Dong Hee Lee; In Jung; Ik Seon Jung; Bo Sun Jeung - Web page: https://patentgrep.com/patent/US12007200B2 ## CPC - F41G 1/30: Reflecting-sights specially adapted for smallarms or ordnance (reflecting-sights in general G02B) - F41G: WEAPON SIGHTS; AIMING (optical aspects thereof G02B) ## Abstract A foldable dot sight device is provided that includes a body capable of being assembled into a firearm. A dot generator is disposed on the body, and is capable of generating a dot for aiming at a target. A reflective mirror is provided, which transmits an image of a target toward the user and reflects the dot generated by the dot generator. A housing is connected to the reflective mirror. A protective cover includes a sliding guide rotatably connected to the body and rotates the housing in a folding or unfolding direction according to a rotational position. ## Claims ### Claim 1 A foldable dot sight device comprising: a body capable of being assembled into a firearm; a dot generator disposed on the body capable of generating a dot for aiming at a target; a reflective mirror rotatably coupled to the body capable of transmitting an image of a target toward the user and capable of reflecting the dot generated by the dot generator; a housing connected to the reflective mirror; and a protective cover including a sliding guide rotatably connected to the body and capable of rotating the housing in a folding or unfolding direction according to a rotational position, wherein the body comprises a zeroing unit disposed inside the protective cover on the body, and the zeroing unit is capable of adjusting the position of the dot generator left and right and up and down. ### Claim 2 (depends on 1) The foldable dot sight device of claim 1, wherein the protective cover comprises an unfolding position set to a position where the sliding guide is separated from the housing by additional rotation of the protective cover after the housing is moved to the unfolded position. ### Claim 3 (depends on 1) The foldable dot sight device of claim 1, wherein the housing includes a first guide protrusion that is operable to be in contact with the sliding guide while the protective cover is rotating and is separated from the sliding guide after the protective cover is completely rotated in the unfolding direction. ### Claim 4 (depends on 3) The foldable dot sight device of claim 3, wherein the housing comprises a second guide protrusion that is operable to be pressed by the protective cover and enters the first guide protrusion into the sliding guide when the protective cover rotates in a folding direction from a fully unfolded state. ### Claim 5 (depends on 1) The foldable dot sight device of claim 1, wherein the protective cover comprises a rear sight capable of aligning with a front sight disposed in front of the barrel to aim at a target, and the rear sight is disposed in the aiming position when the protective cover rotated to the folded position. ### Claim 6 (depends on 1) The foldable dot sight device of claim 1, wherein the protective cover or the body comprises a stopper that guides the unfolding position of the protective cover. ### Claim 7 (depends on 1) The foldable dot sight device of claim 1, wherein the protective cover comprises a stopper that connects to the firearm, and wherein the stopper is capable of limiting additional rotation of the protective cover in the unfolding position of the protective cover. ### Claim 8 (depends on 6) The foldable dot sight device of claim 6, wherein the stopper is provided in each of the body and the protective cover and comprises a permanent magnet and a magnetic body that is attached by magnetic force in the unfolded position of the protective cover. ### Claim 9 (depends on 1) The foldable dot sight device of claim 1, further comprising an elastic member for elastically supporting the protective cover in the unfolding direction. ### Claim 10 (depends on 1) The foldable dot sight device of claim 1, wherein the firearm comprises a cover locking unit capable of fixing the protective cover in a folded position. ### Claim 11 (depends on 1) The foldable dot sight device of claim 1, wherein the protective cover comprises sidewalls surrounding both sides of the body, a connecting bridge connecting the upper part of the sidewalls, a pair of pivot shafts respectively formed on inner side surfaces of each sidewall and facing each other, and a pair of pivot grooves formed on the body such that the pivot shafts are axially rotatably inserted and supported by the pivot grooves. ### Claim 12 (depends on 11) The foldable dot sight device of claim 11, wherein each of the pair of pivot shafts comprises a pair of support wings extending in a radial direction from the outer circumferential surface, and the body comprises a connecting passage connecting the outer surface of the body and at least one of the pivot grooves so that the pivot shaft is capable of being inserted into the at least one pivot groove. ### Claim 13 (depends on 12) The foldable dot sight device of claim 12, wherein the body comprises circular receiving grooves so that each circular receiving groove is coaxial with each of the pivot grooves and capable of rotatably accommodating the pair of support wings. ### Claim 14 (depends on 12) The foldable dot sight device of claim 12, wherein an outer edge of the pair of support wings forms a circular arc corresponding to the inner circumferential surface of the circular receiving grooves. ### Claim 15 A foldable dot sight device comprising: a body capable of being assembled into a firearm; a dot generator disposed on the body capable of generating a dot for aiming at a target; a reflective mirror capable of transmitting an image of a target toward the user and capable of reflecting the dot generated by the dot generator; a housing connected to the reflective mirror; and a protective cover including a sliding guide rotatably connected to the body, wherein the housing includes a first guide protrusion that is operable to be in contact with the sliding guide while the protective cover is rotating and is separated from the sliding guide after the protective cover is completely rotated in the unfolding direction, wherein the housing comprises a second guide protrusion that is operable to be pressed by the protective cover and enters the first guide protrusion into the sliding guide when the protective cover rotates in a folding direction from a fully unfolded state, and wherein the body comprises a zeroing unit disposed inside the protective cover on the body, and the zeroing unit is capable of adjusting the position of the dot generator left and right and up and down. ### Claim 16 (depends on 15) The foldable dot sight device of claim 15, wherein the body comprises a support for guiding an unfolding position of the housing, and the housing is elastically supported in an unfolding direction by an elastic member. ### Claim 17 (depends on 16) The foldable dot sight device of claim 16, wherein the support comprises a permanent magnet being disposed on the support, and a magnetic body capable of being attached to the permanent magnet is provided at a position corresponding to the permanent magnet of the housing. ### Claim 18 (depends on 15) The foldable dot sight device of claim 15, wherein the zeroing unit comprises a support for supporting the dot generator, a left/right moving block vertically and slidably assembled to the support, a left/right adjustment unit axially and rotatably supported on the body, an up/down moving block laterally and slidably assembled to the support, and an up/down adjustment unit is axially and rotatably supported on the body. ### Claim 19 (depends on 18) The foldable dot sight device of claim 18, wherein the zeroing unit further includes a spring that is disposed between the body and the up/down moving block such that the spring elastically supports the up/down moving block in an upward or downward direction. ### Claim 20 (depends on 18) The foldable dot sight device of claim 18, wherein the zeroing unit comprises a pressure support unit for preventing rotation of the left/right adjustment unit or the up/down adjustment unit. ### Claim 21 (depends on 18) The foldable dot sight device of claim 18, wherein the protective cover comprises a sidewall provided with a through-hole through which the left/right adjustment unit is exposed when the protective cover is fully unfolded. ### Claim 22 (depends on 20) The foldable dot sight device of claim 20, wherein the pressure support unit comprises a pressure head disposed on the side of the left/right adjustment unit or up/down adjustment unit, an elastic member elastically supporting the pressure head, and an adjustment screw screwed to the body that is capable of supporting the rear portion of the elastic member. ### Claim 23 (depends on 15) The foldable dot sight device of claim 15, wherein the body is detachably assembled in a seating groove provided on the firearm. ### Claim 24 (depends on 23) The foldable dot sight device of claim 23, wherein the firearm is provided with a body fastener for fastening the body assembled in the seating groove. ### Claim 25 (depends on 24) The foldable dot sight device of claim 24, wherein the body fastener comprises a fastening block assembled in a direction crossing the firearm in the side surface groove, and the body is engaged with the fastening block to limit movement in the upward direction. ### Claim 26 (depends on 25) The foldable dot sight device of claim 25, wherein the body fastener includes a fastening ball in contact with the side surface of the fastening block, and the fastening ball includes a spring for elastically supporting the fastening ball toward the fastening block, and an insertion groove disposed on the side of the fastening block such that the fastening ball can be inserted and supported. ### Claim 27 A foldable dot sight device comprising: a body capable of being assembled into a firearm; a dot generator disposed on the body capable of generating a dot for aiming at a target; a reflective mirror rotatably coupled to the body capable of transmitting an image of a target toward the user and capable of reflecting the dot generated by the dot generator; a housing connected to the reflective mirror; and a protective cover including at least one stopper capable of guiding an unfolding movement of the protective cover by restricting additional rotation when the protective cover is in an unfolded position, wherein the body comprises a zeroing unit disposed inside the protective cover on the body, and the zeroing unit is capable of adjusting the position of the dot generator left and right and up and down. ### Claim 28 (depends on 27) The foldable dot sight device of claim 27, wherein the at least one stopper comprises a first stopper having a first contact element disposed on the side of the body and a second contact element being disposed on the protective cover. ### Claim 29 (depends on 28) The foldable dot sight device of claim 28, wherein the first contact element and the second contact element come in contact vertically to fix and maintain the unfolded position of the protective cover. ### Claim 30 (depends on 28) The foldable dot sight device of claim 28, wherein the at least one stopper comprises a second stopper having a fixing hole being disposed on a lower part of the pivot axis of the protective cover and a fixing ball and an elastic element being disposed on the side of the body. ### Claim 31 (depends on 30) The foldable dot sight device of claim 30, wherein the fixing ball is inserted into the fixing hole by the elasticity of the elastic element such that the unfolding position of the protective cover is fixed. ### Claim 32 (depends on 30) The foldable dot sight device of claim 30, wherein the at least one stopper comprises a plurality of stoppers being combined to reinforce or increase the fixing strength of the unfolding position of the protective cover.