IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0121516
(2008-05-15)
|
등록번호 |
US-7640689
(2010-02-11)
|
우선권정보 |
DE-10 2005 054 917(2005-11-17) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Hanley, Flight & Zimmerman, LLC
|
인용정보 |
피인용 횟수 :
21 인용 특허 :
9 |
초록
▼
A hand guard system for use with a firearm is described. A holding unit for releasably coupling the hand guard system to a firearm includes a coupling element having an opening, a flange, and at least one coupling portion. The flange and the coupling portion form the opening so that the coupling ele
A hand guard system for use with a firearm is described. A holding unit for releasably coupling the hand guard system to a firearm includes a coupling element having an opening, a flange, and at least one coupling portion. The flange and the coupling portion form the opening so that the coupling element is slidably removable about the barrel of the firearm, and an inner surface of the coupling portion engages an outer surface of the barrel nut. The holding unit further includes a sleeve operatively coupled to the coupling element having an inner surface defining an opening so that the sleeve is slidably removable about the barrel of the firearm and the inner surface forms a shoulder and defines a groove distally located from the shoulder and sized to receive a snap ring. The snap ring retains the sleeve to the coupling element such that the shoulder and snap ring are located on opposite sides of the flange of the coupling element. The holding unit further includes a biasing member disposed between the flange and the shoulder of the sleeve to bias the sleeve away from the flange along a longitudinal axis of the barrel. The biasing member enables the sleeve to move between a first position and a second position relative to the coupling element.
대표청구항
▼
What is claimed is: 1. A holding unit for releasably coupling a hand guard system to a firearm having a barrel secured to the firearm by a barrel nut, comprising: a coupling element having an opening, a coupling portion, and a flange, wherein the flange and the coupling portion define the opening s
What is claimed is: 1. A holding unit for releasably coupling a hand guard system to a firearm having a barrel secured to the firearm by a barrel nut, comprising: a coupling element having an opening, a coupling portion, and a flange, wherein the flange and the coupling portion define the opening so that the coupling element is slidably removable about the barrel of the firearm, and wherein an inner surface of the coupling portion engages an outer surface of the barrel nut; a sleeve operatively coupled to the coupling element having an inner surface defining an opening so that the sleeve is slidably removable about the barrel of the firearm, and wherein the inner surface forms a shoulder and defines a groove distally located from the shoulder and sized to receive a snap ring, wherein the snap ring retains the sleeve to the coupling element such that the shoulder and snap ring are located on opposite sides of the flange of the coupling element; and a biasing member disposed between the flange and the shoulder of the sleeve to bias the sleeve away from the flange along a longitudinal axis of the barrel, wherein the biasing member enables the sleeve to move between a first position and a second position relative to the coupling element. 2. A holding unit as defined in claim 1, wherein at least a portion of the interior surface of the sleeve engages an end of the hand guard system to secure the hand guard system to the firearm. 3. A holding unit as defined in claim 1, further comprising a holding collar adjacent the shoulder, wherein the holding collar engages an end of a hand guard system to secure the hand guard system to the firearm. 4. A holding unit as described in claim 1, wherein the biasing member comprises a plurality of springs radially disposed about the circumference of the flange. 5. A holding unit as described in claim 1, wherein the coupling element further comprises a space to receive an operating element therethrough, and wherein the space enables the coupling element to be radially coupled to the outer surface of the barrel nut. 6. A holding unit as described in claim 1, wherein the coupling element further comprises at least one recess portion at an inner surface of the flange to enable the coupling element to radially flex when the coupling element is coupled to the barrel nut. 7. A holding unit as described in claim 1, wherein the holding unit removably couples to the firearm without having to remove the barrel or the barrel nut from the firearm. 8. A firearm, comprising: a housing; a barrel operatively coupled to the housing by a barrel nut; a first support member removably coupled to a first mounting surface of the firearm, wherein the first support member defines an opening so that the first support member is slidably movable along a longitudinal axis of the barrel and is removable from the firearm without having to remove the barrel nut; a second support member removably coupled to a second mounting surface at a distal end from the first support member, wherein the second support member defines an opening so that the second support member is slidably movable about the longitudinal axis of the barrel and is removably coupled to the firearm without having remove the barrel nut; and a hand guard at least partially surrounding the barrel and removably coupled to the first support at a first end of the hand guard and to the second support at a second end of the hand guard, wherein the first and second support members couple the hand guard to the firearm, and wherein the first support member operates between a first position, in which the first support member fixably supports the first end of the hand guard to the firearm, and a second position, in which the first support member releases the first end of the hand guard from the firearm. 9. A firearm as described in claim 8, wherein the first support member comprises a sleeve, a coupling element, and a biasing element disposed between a shoulder formed on an inner surface of the sleeve and a flange of the coupling element, wherein the biasing element provides an axial force in a direction along an axis of the barrel to bias the sleeve away from the flange of the coupling element, and wherein the biasing element enables the sleeve to move between the first and second positions. 10. A firearm as described in claim 9, wherein the biasing element comprises a plurality of springs coupled to the flange. 11. A firearm as described in claim 9, wherein the inner surface of the sleeve defines a recess to allow an operating element to pass therethrough. 12. A firearm as described in claim 9, wherein the sleeve includes a groove to receive a snap ring, wherein the snap ring operatively couples the sleeve to the coupling element. 13. A firearm as described in claim 9, wherein the first support member further comprises a holding collar adjacent the shoulder and the biasing element that engages the first end of the shell to secure the shell to the firearm. 14. A firearm as described in claim 9, wherein the coupling member comprises a clasp-like structure having a plurality of sleeve portions that form an opening, wherein the opening is sized so that the coupling element slidably moves about the barrel of the firearm, and wherein the plurality of sleeve portions frictionally engage the first mounting surface. 15. A firearm as described in claim 14, wherein the coupling member defines a gap to allow an operating element to pass therethrough and enables the coupling member to be radially coupled to the first mounting surface. 16. A firearm as described in claim 14, wherein the coupling member includes a plurality of recess portions to enable the coupling member to radially flex when the coupling member is coupled or removed from the first mounting surface. 17. A firearm as described in claim 8, wherein the second support member comprises a ring member having an opening so that the second support member is slidably movable along the barrel and a gap to allow passage of an operating element or sighting device therethrough, and wherein the gap enables the second support member to be radially coupled to the second mounting surface. 18. A firearm as described in claim 17, wherein the second support member includes a recessed portion that engages a protruding member of the operating element or sighting device. 19. A firearm as described in claim 8, wherein the first mounting surface comprises at least one of an outer surface of the barrel, a barrel nut, or the housing. 20. A firearm as described in claim 8, wherein the barrel includes at least one of a gas bleed port or a sighting device. 21. A holding unit system for coupling a hand guard shell to a firearm, comprising: a first holding unit assembly to be coupled to a barrel nut of a firearm comprising: a coupling element having an inner surface and an outer surface, the inner surface defines an opening that is sized to contact an outer surface of a barrel nut, wherein the inner surface includes a plurality of recess portions to enable the coupling element to radially flex, and wherein the outer surface defines a flange portion of the coupling element, wherein the flange portion defines a gap to allow a gas tube to pass therethrough and enables the coupling element to be radially coupled to the barrel nut; a tubular sleeve operatively coupled to the coupling element having an opening to slidably move along the barrel and an inner surface forming a shoulder and a groove distally located from the shoulder; a biasing element disposed between the flange of the coupling element and the shoulder of the sleeve to bias the sleeve away from the flange along a longitudinal axis of a barrel; and a snap ring received by the groove of the sleeve portion to retain the sleeve portion to the coupling element; and a second holding unit to be coupled to the barrel distally located from the first holding unit comprising a ring member having an opening so that the second holding unit slidably moves along the barrel and a gap to allow passage of a gas bleed port or sighting device therethrough, wherein the gap enables the second holding unit to be radially coupled to the barrel, and wherein the ring member includes a first recessed portion that receives a spring, wherein the spring engages a corresponding groove of the hand guard shell to hold the shell in a defined position. 22. A holding unit system as defined in claim 21, wherein the second holding unit further comprises a second recessed groove that engages a protruding member of a gas bleed port when coupled to the firearm to axially align the second holding unit with the barrel of the firearm.
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