IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0467278
(2012-05-09)
|
등록번호 |
US-8578642
(2013-11-12)
|
발명자
/ 주소 |
- Troy, Stephen P.
- Hewes, David A.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
12 |
초록
▼
A handguard system for use with a firearm including a tubular body assembly having a rearward end and a forward end, a top handguard portion and a bottom handguard portion. The bottom handguard portion includes a forward tubular portion, a gap extending from the rearward end to the forward tubular p
A handguard system for use with a firearm including a tubular body assembly having a rearward end and a forward end, a top handguard portion and a bottom handguard portion. The bottom handguard portion includes a forward tubular portion, a gap extending from the rearward end to the forward tubular portion, a first groove formed in an inner surface thereof and spaced forwardly from the rearward end for receiving tines of a barrel nut therein, and a second groove parallel to the first groove. A clamp assembly is carried by the bottom handguard portion for engaging the barrel nut and securing the bottom handguard portion to the receiver. The top handguard portion is receivable in the gap and including a forward end, a rearward end, and engagement elements for securing the forward end of the top handguard to the bottom handguard portion.
대표청구항
▼
1. A handguard system for use with a firearm including an upper receiver, a barrel extending from the upper receiver and terminating in a muzzle, a barrel nut attaching the barrel to the upper receiver, the barrel nut having tines extending radially outwardly from a forward end thereof, a Delta ring
1. A handguard system for use with a firearm including an upper receiver, a barrel extending from the upper receiver and terminating in a muzzle, a barrel nut attaching the barrel to the upper receiver, the barrel nut having tines extending radially outwardly from a forward end thereof, a Delta ring assembly movable between a rearward position and a forward position, and a front sight assembly, the handguard system comprising: a tubular body assembly having a rearward end and a forward end, a top handguard portion and a bottom handguard portion;the bottom handguard portion includes a forward tubular portion, a gap extending from the rearward end to the forward tubular portion, a first transverse circumferential groove formed in an inner surface thereof and spaced forwardly from the rearward end for receiving the tines of the barrel nut therein, and a second transverse circumferential groove parallel to the first groove and formed in the inner surface of the bottom handguard portion intermediate the first groove and the rearward end;a clamp assembly carried by the bottom handguard portion for engaging the barrel nut and securing the bottom handguard portion to the receiver; andthe top handguard portion receivable in the gap and including a forward end, a rearward end, and engagement elements for securing the forward end of the top handguard to the bottom handguard portion. 2. A handguard system as claimed in claim 1 wherein the engagement element of the top handguard portion includes lugs extending from opposing sides of the forward end of the top handguard portion slidably receivable under corresponding tabs formed on opposing sides the gap of bottom handguard portion rearward of the forward tubular portion. 3. A handguard system as claimed in claim 2 wherein the rearward end of top handguard portion includes a rail extending rearwardly past the rearward end with a longitudinally extending notch formed at the junction of the rail and top handguard portion for receiving the delta ring in the forward position. 4. A handguard system as claimed in claim 1 wherein the top handguard portion further includes a first transverse circumferential groove formed in an inner surface thereof and spaced forwardly from the rearward end for receiving the tines of the barrel nut therein, and a second transverse circumferential groove parallel to the first groove and formed in the inner surface of the bottom handguard portion intermediate the first groove and the rearward end and a clamp assembly carried by the top handguard portion for engaging the barrel nut and securing the top handguard portion to the receiver. 5. A handguard system as claimed in claim 4 wherein the clamp assembly includes a clamp element having a body with a beveled end and a heel extending substantially perpendicularly from an opposing end of the body, the clamp element adjustably positioned within the top handguard portion with the heel extending radially outwardly and received in the first groove of the top handguard portion. 6. A handguard system as claimed in claim 5 wherein the clamp element further includes a threaded aperture formed through the body and a fastener inserted through the top handguard portion and received in the threaded aperture. 7. A handguard system as claimed in claim 1 wherein the clamp assembly includes a clamp element having a body with a beveled end and a heel extending substantially perpendicularly from an opposing end of the body, the clamp element adjustably positioned within the bottom handguard portion with the heel extending radially outwardly and received in the first groove of the bottom handguard portion. 8. A handguard system as claimed in claim 7 wherein the clamp element further includes a threaded aperture formed through the body and a fastener inserted through the bottom handguard portion and received in the threaded aperture. 9. A handguard system as claimed in claim 8 wherein the clamp assembly further includes a second clamp element having a body with a beveled end and a heel extending substantially perpendicularly from an opposing end of the body, adjustably positioned within the bottom handguard portion with the heel extending radially outwardly and received in the first groove. 10. A firearm comprising: a receiver;a barrel extending from the receiver and terminating in a muzzle;a barrel nut affixing the barrel to the receiver, the barrel nut having radially outwardly directed tines spaced about an outer periphery thereof;a Delta ring assembly overlying the barrel nut and movable between a rearward position exposing the barrel nut and a forward position;a front sight assembly carried by the barrel;a tubular body assembly having a rearward end and a forward end, a top handguard portion and a bottom handguard portion;the bottom handguard portion includes a forward tubular portion, a gap extending from the rearward end to the forward tubular portion, a first transverse circumferential groove formed in an inner surface thereof and spaced forwardly from the rearward end, the tines of the barrel nut received therein, and a second transverse circumferential groove parallel to the first groove and formed in the inner surface of the bottom handguard portion intermediate the first groove and the rearward end;a clamp assembly carried by the bottom handguard portion and engaging the barrel nut to secure the bottom handguard portion to the receiver; andthe top handguard portion received in the gap and including a forward end, a rearward end, and engagement elements securing the forward end of the top handguard to the bottom handguard portion. 11. A firearm as claimed in claim 10 wherein the engagement element of the top handguard portion includes lugs extending from opposing sides of the forward end of the top handguard portion slidably received under corresponding tabs formed on opposing sides the gap of bottom handguard portion rearward of the forward tubular portion. 12. A firearm as claimed in claim 11 wherein the rearward end of top handguard portion includes a rail extending rearwardly past the rearward end with a longitudinally extending notch formed at the junction of the rail and top handguard portion receiving the delta ring in the forward position. 13. A firearm as claimed in claim 10 wherein the top handguard portion further includes a first transverse circumferential groove formed in an inner surface thereof and spaced forwardly from the rearward end, the tines of the barrel nut received therein, and a second transverse circumferential groove parallel to the first groove and formed in the inner surface of the top handguard portion intermediate the first groove and the rearward end and a clamp assembly carried by the top handguard portion engaging the barrel nut and securing the top handguard portion to the receiver. 14. A firearm as claimed in claim 13 wherein the clamp assembly includes a clamp element having a body with a beveled end engaging the barrel nut and a heel extending substantially perpendicularly from an opposing end of the body, the clamp element adjustably positioned within the top handguard portion with the heel extending radially outwardly and received in the first groove of the top handguard portion. 15. A firearm as claimed in claim 14 wherein the clamp element further includes a threaded aperture formed through the body and a fastener inserted through the top handguard portion and received in the threaded aperture. 16. A firearm as claimed in claim 10 wherein the clamp assembly includes a clamp element having a body with a beveled end engaging the barrel nut and a heel extending substantially perpendicularly from an opposing end of the body, the clamp element adjustably positioned within the bottom handguard portion with the heel extending radially outwardly and received in the first groove of the bottom handguard portion. 17. A firearm as claimed in claim 16 wherein the clamp element further includes a threaded aperture formed through the body and a fastener inserted through the bottom handguard portion and received in the threaded aperture. 18. A firearm as claimed in claim 17 wherein the clamp assembly further includes a second clamp element having a body with a beveled end engaging the barrel nut and a heel extending substantially perpendicularly from an opposing end of the body, adjustably positioned within the bottom handguard portion with the heel extending radially outwardly and received in the first groove.
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