WO2012005826A2 - Viseur - Google Patents

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Publication number
WO2012005826A2
WO2012005826A2 PCT/US2011/038318 US2011038318W WO2012005826A2 WO 2012005826 A2 WO2012005826 A2 WO 2012005826A2 US 2011038318 W US2011038318 W US 2011038318W WO 2012005826 A2 WO2012005826 A2 WO 2012005826A2
Authority
WO
WIPO (PCT)
Prior art keywords
mandrel
bore
cavity
bore sight
housing
Prior art date
Application number
PCT/US2011/038318
Other languages
English (en)
Other versions
WO2012005826A3 (fr
Inventor
Eric A. St. Phillips
Russell D. Page
Kenneth A. Call
Edward G. Schultz
Original Assignee
Crosman Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Crosman Corporation filed Critical Crosman Corporation
Publication of WO2012005826A2 publication Critical patent/WO2012005826A2/fr
Publication of WO2012005826A3 publication Critical patent/WO2012005826A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/32—Muzzle attachments or glands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/54—Devices for testing or checking ; Tools for adjustment of sights

Definitions

  • the present invention relates to identifying and projecting a beam of radiation along a longitudinal axis of a bore of a gun, and more particularly, to a method and bore sight apparatus for identifying the longitudinal axis of the bore with the beam of radiation for alignment or calibration of corresponding gun sights. DESCRIPTION OF THE RELATED ART
  • sighting in target The target was placed at the actual, final desired distance from the gun, and a test shot was fired. The point on the target where the bullet or projectile entered the target was then aligned with the sight (whether iron sights or a telescope sight). After this was done, a second shot was fired; and the procedure was repeated until the point of entry of the bullet or projectile aligned with the cross hairs or cross points of the sights. In many cases, a number of shots needed to be fired in order to effect the sighting in procedure.
  • a bore sight having a rear casing; a front casing sized to cooperatively engage the rear casing and define a first cavity and a separate second cavity; a laser disposed within the first cavity, the laser selectively emitting a radiation beam along an optical axis; a battery disposed in the second cavity; a switch selectively connecting the battery and the laser module; an elongate mandrel extending from the rear cavity, the mandrel having a free end; a tapered seating collar having a through hole sized to receive a length of the mandrel, the seating collar formed of a different second material than the mandrel and the rear casing; and an adaptor releasably engaging the free end of the mandrel.
  • the bore sight can further include a coupler and an insert sized to cooperatively engage the front casing and the rear casing in defining the first cavity and the second cavity.
  • the adaptor can include a flange seat fixed along a longitudinal dimension of the mandrel and a capture head threadedly engaging at least one of the flange seat and the mandrel to vary a longitudinal distance between a portion of the capture head and the flange seat and the mandrel to vary a longitudinal distance between a portion of the capture head and the flange seat, and a resilient bushing longitudinally intermediate the portion of the flange seat and the capture head.
  • a method for operably locating the bore sight within a bore having a longitudinal axis by disposing a length of an elongate mandrel within a length of the bore; rotating a capture head relative to the mandrel to decrease a longitudinal distance between the capture head and a flange seat and radially expand a bushing longitudinally intermediate a portion of the capture head and the flange seat to contact an inner surface of the bore at a contact area, a dimension of the contact area along the longitudinal axis being less than a diameter of the bore; and contacting a seating collar with an end of the bore, the seating collar of a different second material than the mandrel, to locate a first cavity retaining a laser and a separate second cavity retaining a battery relative to the longitudinal axis, wherein the laser is substantially collinear with the longitudinal axis.
  • Figure 1 is a cross sectional view of a first configu ration of the bore sight.
  • Figure 2 is an enlarged cross-sectional view of a portion of the bore sight of Figure 1 .
  • Figure 3 is an enlarged cross-sectional view of a housing portion of the bore sight of Figure 1 .
  • Figure 4 is an enlarged cross-sectional view of an adapter employed in the bore sight of Figure 1 .
  • Figure 5 is a cross sectional view of the bore sight operably engaged with a barrel having a bore.
  • Figure 6 is a perspective view of an alternative configuration of the bore sight.
  • Figure 7 is a cross-sectional view of the bore sight of Figure 6.
  • Figure 8 is an enlarged cross-sectional view of a housing and switch of the bore sight of Figure 6.
  • Figure 9 is an enlarged cross-sectional view of a housing and switch of the bore sight of Figure 8, with the switch in a different position.
  • the present bore sight 1 0 generally includes a front casing 20, a rear casing 60, an elongate mandrel 1 00, a seating collar 1 20, and an adaptor 1 40. As seen in Figure 5 , the bore sight 1 0 cooperates with a barrel 8 having a bore 7, wherein the barrel and bore terminate at an open end and define a longitudinal axis.
  • the front casing 20 and the rear casing 60 cooperatively engage to define a first cavity 21 and a separate second cavity 61 , wherein the first cavity retains a laser module 30 and the second cavity retains at least one of a battery 62 and a switch 64.
  • a coupler 40 and an insert 50 can be retained between the front casing 20 and the rear casing 60.
  • the casings can be individually manufactured allowing for less complicated tooling and manufacturing costs.
  • the front casing 20 and the rear casing 60 cooperatively engage to form a housing for at least one of, and in selected configurations each of, the laser modu le 30, the battery 62 and the switch 64.
  • the housing is at least substantially coaxial or concentric with the longitudinal axis of the barrel.
  • the front casing 20 includes a generally cylindrical body having a forward opening 23, a transverse alignment screw port 25, and a laser seat 26 projecting radially inward.
  • the front casing 20 can be made from polymers, metals, alloys and composites. A satisfactory material has been found to include aluminum.
  • the forward opening 23 of the front casing 20 operably retains a lens mount 28.
  • the lens mount 28 can include focusing and/or protective optics for passing the laser along an exit axis. It is contemplated the front casing 20 can include a retaining groove 29 for engaging a corresponding ridge of the lens mount 28, such that the lens mount 28 can be changed out to provide for different properties of the generated beam.
  • the laser module 30 includes a laser 32 such as an LED laser, typically emitting in a visible wavelength. However, it is understood the laser 32 of the laser module 30 can be selected to generate a beam in the infrared or other non-visible range, thereby allowing the user, with appropriate viewing glasses, to align the gun.
  • the laser 32 projects a beam of radiation along an optical axis.
  • the laser module 30 includes a radially extending flange 34 sized to engage the seat 26 of the front casing 20.
  • the laser module 30 includes an electrical contact 36 for receiving power for operating the laser 32.
  • the electrical contact 36 can be in the form of a spring, such as a coil spring.
  • the front casing 20 also houses a bias member 38, such as a leaf spring operably disposed between a portion of the mounted laser module 30 and an inner surface of the front casing 20.
  • a bias member 38 such as a leaf spring operably disposed between a portion of the mounted laser module 30 and an inner surface of the front casing 20.
  • An alignment screw 39 is threadedly disposed within the alignment screw port 25 and contacts a portion of the laser module 30, such that movement of the laser module by the alignment screw is opposed by the bias member 38.
  • the front casing 20 is shown with one alignment screw port 25 , it is understood the front casing can include two, three or more alignment screw ports with corresponding alignment screws for locating an emission axis of the laser module 30 relative to the front casing 20.
  • the rear casing 60 cooperatively engages the front casing 20 to capture the coupler 40 and the insert 50 such that the front casing and the rear casing define the first cavity 21 and the separate second cavity 61 .
  • the cou pler 40 can include an electrical lead 42 extending between a first surface 44 exposed to the first cavity 21 and a second surface 46 exposed to a second cavity 61 .
  • the insert 50 cooperates with the coupler 40 and a respective portion of the front casing 20 and the rear casing 60 to define the first cavity 21 and the separate second cavity 61 .
  • the rear casing 60 includes a transverse aperture 63 accessing the second cavity 61 .
  • the second cavity 61 is sized to operably retain at least one battery 62 and the switch 64 for selectively providing an electrical input to the electrical lead on the coupler.
  • the rear casing 60 includes a ramp 66 exposed to the second cavity 61 .
  • the switch 64 is a rotation switch having a cam surface 65 for engaging the ramp 66 in the rear casing 60.
  • a rear end of the rear casing 60 includes an aperture or recess 67 sized to cooperatively receive a portion of the mandrel 1 00.
  • the mandrel 1 00 can be engaged with the rear casing 60 by any of a variety of
  • Threaded engagements, friction fit, detents, adhesives or over-molding can be used to engage the mandrel 1 00 and the rear casing 60.
  • the mandrel 1 00 can be fixed relative to the rear casing 60, such that rotation of the casing imparts rotation of the mandrel.
  • the rear casing 60 can be made from polymers, metals, alloys and composites. A satisfactory material has been found to include
  • a non-conductive material of the rear casing could include a conductive lead or trace.
  • the mandrel 1 00 is operably engaged with the rear casing 60 to dispose the seating collar 1 20 adjacent to the rear casing, wherein a free end 1 02 of the mandrel is disposed a given distance from the rear casing.
  • the free end 1 02 of the mandrel 1 00 includes a mechanism such as a recess and particularly a threaded recess 1 04 for cooperatively engaging the adapter 1 40.
  • the seating collar 1 20 defines a generally tapered (or stepped) outer surface 1 22 extending from a narrow end 1 24 to a flared end 1 26, and includes a central through aperture 1 29 sized to receive a length of the mandrel 1 00.
  • An inner surface of seating collar 1 20 at the flared end 1 26 defines an engaging su rface 1 30 for engaging an outer surface of the rear casing 60.
  • the seating collar 1 20 defines a surface extending from an outer surface of the mandrel 1 00 to extend beyond the diameter of the rear casing 60.
  • the through aperture 1 29 and the mandrel 1 00 can include cooperating ribs 1 32 and recesses 1 33 to locate the seating collar 1 20 on the mandrel 1 00.
  • the seating collar 1 20 can cooperatively and releaseably engage at least one of the mandrel 1 00 and the rear casing 60.
  • the seating collar 1 20 is removably connected to at least one of the mandrel 1 00 and the rear casing 60, the seating collar is interchangeable to accommodate various ranges of bore diameters (calibers), the seating collar can be constructed to define a variety of lengths along the longitudinal axis, thus defining a corresponding variety of angles relative to the longitudinal axis. That is, the angle of inclination between the outer tapered surface 1 22 of the seating collar 1 20 and the longitudinal axis of the mandrel 1 00 can be varied for different bore diameters as well as for a given bore diameter, by virtue of using a different seating collar. Satisfactory angles of the tapered surface 1 22 have been found to include between approximately 5° and 45°.
  • the seating collar 1 20 is formed as a separate component than the mandrel 1 00 and the rear casing 60.
  • the size of the stock necessary to manufacture the bore sight 1 0 can be reduced. That is, rather than forming the entire bore sight 1 0 from a block of sufficient size to encompass the seating collar 1 20, the separate components can be formed from stock of a size optimized for the given component.
  • the seating collar 1 20 as a separate component allows the seating collar to be formed of a different second material than the mandrel 1 00, thereby allowing the mandrel to be formed of a durable lightweight metal such as aluminum, steel, or an alloy, wherein the seating collar can be formed of a polymer such as a thermoplastic, thermoplastic elastomer or thermoset material.
  • the seating collar 1 20 can be formed of a compliant or resilient material, the seating collar can frictionally engage and retain the bore sight 1 0 relative to the open end of the bore, without imparting wear on the bore.
  • the relative hardness of the material of the seating collar 1 20 is selected to avoid being so compliant that the desired alignment of the bore sight 1 0 within the bore is not achieved against being so hard that the bore can be
  • a satisfactory hardness of the seating collar 1 20 has been found to be less than the barrel 8 and sufficiently great to retain the bore sight 1 0 in an intended operable position.
  • the mandrel 1 00 extends to the free end 1 02, wherein the free end includes the mechanism for receiving a portion of the adaptor 1 40.
  • the adaptor 1 40 includes a flange seat 1 50, a capture head 1 60, and an expandable bushing 1 70, wherein the bushing is located
  • the flange seat 1 50 contacts the free end 1 02 of the mandrel 1 00 and adjacent longitudinal portions of the mandrel and defines a generally circular seat 1 52 extending radially outward for cooperatively engaging the bushing 1 70.
  • the flange seat 1 50 further includes a central aperture 1 53 sized to pass a portion of the capture head 1 60 therethrough. At least one of the flange seat 1 50 and the recess 1 04 is threaded to cooperatively engage the capture head 1 60. In one configuration, the flange seat 1 50 rotates relative to the mandrel 1 00.
  • the circular seat 1 52 defines a shoulder 1 54 for engaging the bushing 1 70 and precluding longitudinal movement of the bushing relative to the flange seat 1 50.
  • the shoulder 1 54 can include a facet 1 56
  • the perpendicular facet 1 56 is radially intermediate the angled facet 1 58 and the longitudinal axis of the mandrel 1 00.
  • the capture head 1 60 includes a bushing seat 1 62 and a projecting stem 1 64 sized to cooperatively engage the mandrel 1 00.
  • the bushing seat 1 62 defines a shoulder 1 66 for engaging the bushing 1 70 and precluding longitudinal movement of the bushing relative to the capture head 1 60.
  • the shoulder 1 66 can include a facet 1 67 perpendicular to the longitudinal axis and a facet 1 68 angled to the longitudinal axis. In one configuration, the perpendicular facet 1 67 is radially intermediate the angled facet 1 68 and the longitudinal axis of the mandrel 1 00.
  • the stem 1 64 can include threads for cooperatively engaging the mandrel 1 00.
  • any of a variety of mechanisms could be used to engage the capture head 1 60 and the mandrel to decrease the longitudinal distance between the capture head and the flange seat 1 50.
  • the alternative mechanisms include cooperating magnets, bias members such as springs, plungers or telescoping members.
  • the expandable bushing 1 70 includes engaging surfaces 1 72 for cooperatively engaging the corresponding portions of the flange seat 1 50 and the capture head 1 60.
  • the bushing 1 70 includes an annular groove 1 75 or line of preferential deformation longitudinally intermediate the ends of the bushing.
  • the line of preferential deformation 1 75 is configured such that upon longitudinal compression of the bushing 1 70 by relative motion of the capture head 1 60 relative to the flange seat 1 50, the bushing flexes radially outward to form a generally circular line of contact with the inside surface of the bore.
  • the bushing 1 70 is selected such that line (or area) of contact has longitudinal dimension that is less than the circumferential dimension, and advantageously substantially less than the circumferential dimension of the bore.
  • the bore has diameter of approximately 0.379 inches, and the line of the contact between the bushing 1 70 and the bore extends along the longitudinal dimension less than 0.379 inches, and advantageously less than 0.1 75 inches, and can be as little as 0.1 5 inches.
  • the longitudinal dimension of the contact between the bushing 1 70 and the bore is reduced, the relative pressure at the resulting area of contact increases, thereby securing retaining the bushing relative to the bushing as well as aiding in centering the longitudinal axis of the mandrel 1 00 with the longitudinal axis of the bore.
  • the appropriate dimensioning or sizing of the seating collar 1 20 allows the tapered surface of the seating collar to engage the end of the bore.
  • the seating collar 1 20 can be formed of a polymeric material, the seating collar can repeatedly contact the bore as well as move relative to the bore without imparting damage to the bore.
  • the appropriate sizing allows the adaptor to be disposed along the inside of the bore until the seating collar 1 20 contacts the end of the bore.
  • An outside surface of the bushing 1 70 contacts an inside surface of the bore 7, thereby at least substantially precluding rotation of the bushing relative to the bore.
  • the adaptor 1 40 is sized such that upon changing, and particularly
  • a radial dimension of the bushing 1 70 is increased and contacts the inner surface of the bore along an annular or circumferential contact, wherein the annular contact has a reduced longitudinal dimension, thereby increasing the pressu re between the bushing and the inside of the bore.
  • Actuation of the switch 64 in the second cavity 61 completes a circuit causing current to flow from the batteries 62 along the electrical lead 42 of the coupler 40 and to the spring contact with the laser module 30.
  • the emitted laser extends along an axis which is collinear with the mandrel 1 00 and the lines of contact defined by the adaptor 1 40 and the seating collar 1 20.
  • the present configuration provides a nu mber of advantages including the ability to employ materials such as metal for formation of the mandrel 1 00 and the casings 20, 60, wherein the contact with the bore can be defined by relatively compliant material such as polymers, thermoplastics, and thermoplastic elastomers, while still providing sufficient contact with the bore to appropriately align the laser axis with the longitudinal axis of the bore and thus permit alignment of the gun sights with the axis of the bore.
  • the coupler 40 includes a first surface lead 47 and a second surface lead 49, wherein the switch 64 selectively electrically interconnects the first surface lead and the second surface lead.
  • the switch 64 is in an open position.
  • the switch 64 is disposed in the closed or power on position.
  • the switch is disposed about an outside su rface of the front casing and the rear casing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Toys (AREA)
  • Battery Mounting, Suspending (AREA)
  • Laser Surgery Devices (AREA)

Abstract

L'invention porte sur un viseur comprenant un boîtier arrière, un boîtier avant dimensionné pour venir en prise de manière coopérative avec le boîtier arrière et définir une première cavité et une seconde cavité séparée, un laser disposé à l'intérieur de la première cavité, et une batterie dans la seconde cavité. Le viseur comprend en outre un commutateur connectant de manière sélective la batterie et le laser, un mandrin allongé en prise de manière libérable avec le boîtier arrière, le mandrin ayant une extrémité libre, un collier d'assise conique ayant un trou traversant dimensionné pour recevoir une longueur du mandrin, le collier d'assise étant un composant séparé du mandrin et du boîtier arrière, le collier d'assise pouvant être constitué d'un second matériau différent de celui du mandrin et du boîtier arrière ; et un adaptateur en prise de manière libérable avec une extrémité libre du mandrin.
PCT/US2011/038318 2010-06-30 2011-05-27 Viseur WO2012005826A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/827,534 2010-06-30
US12/827,534 US20120167440A1 (en) 2010-06-30 2010-06-30 Bore sight

Publications (2)

Publication Number Publication Date
WO2012005826A2 true WO2012005826A2 (fr) 2012-01-12
WO2012005826A3 WO2012005826A3 (fr) 2012-03-29

Family

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PCT/US2011/038318 WO2012005826A2 (fr) 2010-06-30 2011-05-27 Viseur

Country Status (2)

Country Link
US (1) US20120167440A1 (fr)
WO (1) WO2012005826A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104712917A (zh) * 2013-12-15 2015-06-17 西安华科光电有限公司 一种光源可切换的激光-led调整机构
WO2016130206A1 (fr) * 2015-02-13 2016-08-18 Raytheon Company Insert à ligne de visée pour l'alignement d'un système de visée avec le système de tir d'une arme

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US20110174150A1 (en) * 2010-01-18 2011-07-21 Lowas Iii Albert Frank Mulit-barrel Automatic Weapon Centerline Aiming Laser
US8510981B1 (en) * 2012-08-28 2013-08-20 Graflex, Inc. Droop-resistant stems and adapters for boresighting weapons
US8661725B1 (en) * 2012-10-01 2014-03-04 Graflex, Inc. Removably coupled boresight camera assembly for aligning weapons
US10156414B2 (en) * 2015-11-09 2018-12-18 American Classic Arms, LLC Accommodating firearm bushing
US11123621B1 (en) * 2019-06-05 2021-09-21 Callaway Golf Company Self-centering mandrel for golf club hosels
US11585636B2 (en) 2020-02-27 2023-02-21 Osprey Global, Llc Bore sight with arbor system

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Publication number Priority date Publication date Assignee Title
CN104712917A (zh) * 2013-12-15 2015-06-17 西安华科光电有限公司 一种光源可切换的激光-led调整机构
CN104712917B (zh) * 2013-12-15 2018-03-30 西安华科光电有限公司 一种光源可切换的激光‑led调整机构
WO2016130206A1 (fr) * 2015-02-13 2016-08-18 Raytheon Company Insert à ligne de visée pour l'alignement d'un système de visée avec le système de tir d'une arme
US9513086B2 (en) 2015-02-13 2016-12-06 Raytheon Company Boresight insert for alignment of aiming system with firing system of weapon

Also Published As

Publication number Publication date
WO2012005826A3 (fr) 2012-03-29
US20120167440A1 (en) 2012-07-05

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