Feeder mechanism retention device for fastener driving tool
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B27F-007/00
출원번호
US-0820942
(2007-06-21)
등록번호
US-8276798
(2012-10-02)
발명자
/ 주소
Moeller, Larry M.
Robinson, James W.
출원인 / 주소
Illinois Tool Works Inc.
대리인 / 주소
Greer, Burns & Crain, Ltd.
인용정보
피인용 횟수 :
2인용 특허 :
30
초록▼
A fastener driving tool including a power source having a reciprocating driver blade, a tool nose associated with the power source for receiving the driver blade for driving fasteners fed into the nose, a magazine constructed and arranged to house a supply of the fasteners and a magazine feeder mech
A fastener driving tool including a power source having a reciprocating driver blade, a tool nose associated with the power source for receiving the driver blade for driving fasteners fed into the nose, a magazine constructed and arranged to house a supply of the fasteners and a magazine feeder mechanism associated with the magazine for sequentially feeding fasteners into the nose. The feeder mechanism operates between a retracted position and an advanced position. An electromechanical retention device is operationally associated with the feeder mechanism and is configured for retaining the feeder mechanism in the retracted position until the driver blade is positioned to allow fastener advancement into the nose.
대표청구항▼
1. A fastener driving tool, comprising: a power source including a reciprocating driver blade;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feede
1. A fastener driving tool, comprising: a power source including a reciprocating driver blade;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism disposed on said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed cylinder and operating between a retracted position and an advanced position relative to said tool nose;a control module in said tool connected to said feeder mechanism; andan electromechanical retention device disposed on said feed cylinder of said feeder mechanism, controlled by said control module which determines an energization cycle of said device and energizes said device for retaining said feeder mechanism in said retracted position for a duration corresponding to when said driver blade is positioned to allow fastener advancement into said nose. 2. The fastener driving tool of claim 1 wherein said electromechanical retention device is an electromagnet, the activation of which is controlled by said control module. 3. A fastener driving tool, comprising: a power source including a reciprocating drive piston and associated driver blade disposed within a cylinder;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism associated with said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed piston reciprocating between an advanced position and a retracted position relative to said tool nose;a gas conduit in fluid communication with power source gases and a feed cylinder housing said feed piston;an electromechanical retention device retaining said feed piston in said retracted position until said driver blade reaches a pre-firing position;said electromechanical retention device being an electromagnet disposed to operationally engage said feed piston; anda control module in said tool controlling said electromagnet for determining an energization cycle of said electromagnet for retaining said feed piston in said retracted position until said driver blade reaches said pre-firing position for preventing side loading against said driver blade by a next fastener to be driven. 4. The fastener driving tool of claim 3 wherein said control module energizes said electromagnet for a specified period of time. 5. A fastener driving tool, comprising: a power source including a driver blade reciprocating from a pre-firing position;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism disposed on said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed cylinder and operating between a retracted position and an advanced position relative to said tool nose;an electromechanical retention device including an electromagnet and disposed on said feed cylinder of said feeder mechanism and configured for interrupting operation of said feeder mechanism to delay advancement of said fasteners until said driver blade returns to said pre-firing position; anda control module operating said electromechanical retention device, wherein said control module energizes said electromagnet to retain a feed piston in a retracted position relative to said tool nose corresponding to said retracted position of said feeder mechanism for a predetermined amount of time, said amount of time determined by said control module. 6. A fastener driving tool, comprising: a power source including a reciprocating driver blade;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism disposed on said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed cylinder and operating between a retracted position and an advanced position relative to said tool nose;an electromechanical retention device disposed on said feed cylinder of said feeder mechanism and interrupting said feeder mechanism and retaining said mechanism in said retracted position for a predetermined amount of time corresponding to when said driver blade is positioned to allow fastener advancement into said nose; andat least one position sensor associated with a drive piston connected to said driver blade and connected to a control module to de-energize said electromechanical retention device when the drive piston has returned to a pre-firing position. 7. A fastener driving tool, comprising: a power source including a reciprocating driver blade;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism disposed on said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed cylinder and operating between a retracted position and an advanced position relative to said tool nose;a control module in said tool connected to said feeder mechanism;an electromechanical retention device disposed on said feed cylinder of said feeder mechanism, controlled by said control module which determines an energization cycle of said device and energizes said device for retaining said feeder mechanism in said retracted position for a duration corresponding to when said driver blade is positioned to allow fastener advancement into said nose;a gas conduit in fluid communication with power source gases; anda feed cylinder enclosing a feed piston such that the power source gases cyclically retract said feed piston in said feed cylinder. 8. The fastener driving tool of claim 7 wherein said feed piston reciprocates between an advanced position and a retracted position relative to said tool nose, wherein said feed cylinder is provided with a return spring biasing said feed piston to said advanced position, and said electromechanical retention device includes an electromagnet retaining said feed piston in said retracted position against a force generated by said spring. 9. The fastener driving tool of claim 8 wherein said electromagnet is disposed within said feed cylinder. 10. The fastener driving tool of claim 9 further including fastener hardware constructed and arranged for securing said electromagnet in said feed cylinder. 11. A fastener driving tool, comprising: a power source including a reciprocating driver blade;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism disposed on said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed cylinder and operating between a retracted position and an advanced position relative to said tool nose;a control module in said tool connected to said feeder mechanism; andan electromechanical retention device disposed on said feed cylinder of said feeder mechanism, said electromechanical retention device being an electromagnet, wherein activation of said electromagnet is controlled by said control module, said control module determines an energization cycle of said electromagnet and energizes said electromagnet for retaining said feeder mechanism in a retracted position and for retaining a feed piston in a retracted position relative to said tool nose, and corresponding to said retracted position of said feeder mechanism for a predetermined amount of time. 12. A fastener driving tool, comprising: a power source including a reciprocating driver blade;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism disposed on said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed cylinder and operating between a retracted position and an advanced position relative to said tool nose;a control module in said tool connected to said feeder mechanism; andan electromechanical retention device disposed on said feed cylinder of said feeder mechanism, said electromechanical retention device being an electromagnet, wherein activation of said electromagnet is controlled by said control module, said control module determines an energization cycle of said electromagnet and energizes said electromagnet for retaining said feeder mechanism in said retracted position and for retaining a feed piston in a retracted position relative to said tool nose, and corresponding to said retracted position of said feeder mechanism for said duration, which is a predetermined amount of time corresponding to when said driver blade is positioned to allow fastener advancement into said nose. 13. A fastener driving tool, comprising: a power source including a reciprocating driver blade;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism disposed on said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed cylinder and operating between a retracted position and an advanced position relative to said tool nose;a control module in said tool connected to said feeder mechanism;an electromechanical retention device disposed on said feed cylinder of said feeder mechanism and controlled by said control module which determines an energization cycle of said device and energizes said device for retaining said feeder mechanism in said retracted position for a duration corresponding to when said driver blade is positioned to allow fastener advancement into said nose, said electromechanical retention device being configured so that a feed piston in said feeder mechanism connected to a feed claw is held in a retracted position relative to said tool nose and corresponding to said retracted position of said feed claw until said driver blade returns to a pre-firing position. 14. A fastener driving tool, comprising: a power source including a reciprocating driver blade;a tool nose associated with said power source for receiving said driver blade for driving fasteners fed into said nose;a magazine constructed and arranged to house a supply of the fasteners;a magazine feeder mechanism disposed on said magazine for sequentially feeding fasteners into said nose, said feeder mechanism including a feed cylinder and operating between a retracted position and an advanced position relative to said tool nose;a control module in said tool connected to said feeder mechanism;an electromechanical retention device disposed on said feed cylinder of said feeder mechanism, controlled by said control module which determines an energization cycle of said device and energizes said device for retaining said feeder mechanism in said retracted position for a duration corresponding to when said driver blade is positioned to allow fastener advancement into said nose; andat least one position sensor associated with a drive piston connected to said driver blade and connected to a control program to de-energize said electromechanical retention device when the drive piston has returned to a pre-firing position.
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