US3601168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driving tool for fasteners
Assignee: Atlas Copco AB
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Filing: 1969-07-02
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Granted: 1971-08-24
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Expires: 1989-07-02
Abstract
Abstract In a driving tool for fasteners a driver has guide jaws releasably clamped thereagainst for holding a fastener in frontal alignment therewith. During driving movement of the driver together with said fastener towards a workpiece, the guide jaws, in response to said fastener striking against the workpiece, are arrested in spaced relation to the workpiece and knocked loose from the driver for releasing the fastener from the guide jaws while the driver continues its driving movement. The driving tool may be provided with a magazine for band-supported fasteners, which by an ejector are forced to break out laterally one by one from the band in between the guide jaws and by a feeder are moved together with the band one after the other to the ejector, said ejector and feeder being pivotally supported on a rocker member such as to alternately actuate the fasteners as the arm is rocked alternately in one direction and the other.
Inventors
- 👤 Gustaf Harry Fernstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:36
CPC Classifications
F; F16; F16B; F16B27/00; B; B25; B25B; B25B23/00; B25B23/02; B25B23/04; B25B23/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
212 words
A driving tool for fasteners comprising a guide body, a driver axially movably carried in said guide body between retracted and extended positions relative thereto, a feed opening on said guide body, means for feeding fasteners one after the otHer through said feed opening into frontal alignment with said driver in the retracted position thereof, guide jaws axially movable relative to said driver in said guide body between projected conjunct position on said driver for holding a fastener thus fed by said feeding means in front of said driver and a separated position in said guide body loose from said driver for releasing said fastener, releasable holding means in said driving tool movable in conjunction with said driver for clamping said guide jaws against said driver in said projected conjunct position of said guide jaws during driving movement of said driver together with said fastener held in front thereof towards a workpiece into which said fastener is to be driven, and surfaces on said guide jaws cooperating with said fastener held therebetween for arresting said guide jaws in spaced relation to said workpiece and for knocking them loose from said driver by release of said holding means the instant said fastener strikes against said workpiece during the driving movement of said driver.
Claim 2
Dependent Claim
212 words
A driving tool for fasteners comprising a guide body, a driver axially movably carried in said guide body between retracted and extended positions relative thereto, a feed opening on said guide body, means for feeding fasteners one after the otHer through said feed opening into frontal alignment with said driver in the retracted position thereof, guide jaws axially movable relative to said driver in said guide body between projected conjunct position on said driver for holding a fastener thus fed by said feeding means in front of said driver and a separated position in said guide body loose from said driver for releasing said fastener, releasable holding means in said driving tool movable in conjunction with said driver for clamping said guide jaws against said driver in said projected conjunct position of said guide jaws during driving movement of said driver together with said fastener held in front thereof towards a workpiece into which said fastener is to be driven, and surfaces on said guide jaws cooperating with said fastener held therebetween for arresting said guide jaws in spaced relation to said workpiece and for knocking them loose from said driver by release of said holding means the instant said fastener strikes against said workpiece during the driving movement of said driver.
Claim 3
Dependent Claim
31 words
A driving tool according to claim 1 in which said holding means is carried by an outer sleeve movable in conjunction with said driver and axially slidably surrounding said guide body.
Claim 4
Dependent Claim
35 words
A driving tool according to claim 2 in which there are provided spring means between said guide body and said outer sleeve for biasing said driver to said retracted position thereof in said guide body.
Claim 5
Dependent Claim
100 words
A driving tool according to claim 1 in which said guide jaws are loosely supported in longitudinal slots in said guide body extending sidewise along the path of movement of said driver, said holding means including wedge jaws radially movably guided in openings in said outer sleeve and extending into said slots, annular spring means on said outer sleeve for biasing said wedge jaws inwardly into said slots, and abutments radially outwardly on said guide jaws cooperating with said wedge jaws for keeping said guide jaws releasably in said projected conjunct position clamped between said wedge jaws and said driver.
Claim 6
Dependent Claim
65 words
A driving tool according to claim 1 in which there are provided rear abutments on said guide body cooperating with said guide jaws for arresting them in a rearward movement thereof to be reclamped against said driver by said holding means returning together with said driver to the retracted position of the latter, said holding means engaging said guide jaws for said rearward movement thereof.
Claim 7
Dependent Claim
70 words
A driving tool according to claim 4 in which said slots are terminated by rear abutments cooperating with the rear ends of said guide jaws for arresting them in a rearward movement thereof to be reclamped against said driver by said wedge jaws returning together with said driver to the retracted position of the latter, said wedge jaws having means thereon engaging said guide jaws for said rearward movement thereof.
Claim 8
Dependent Claim
80 words
A driving tool according to claim 4 in which said guide jaws are elongated bodies having opposed end surfaces thereon, there being provided front and rear abutments at the opposed ends of said slots cooperating with said end surfaces for knocking said guide jaws respectively to said separated retracted position in an extreme forward position of said driver when said fastener fails to strike against a workpiece, and to said projected conjunct position in said retracted position of said driver.
Claim 9
Dependent Claim
149 words
A driving tool according to claim 1 in which said fastener is a screw provided with driving groove means, a rotary driving clutch part axially fixed in said driving tool, a driven clutch part connected to said driver and having limited axial movability together therewith in said driving tool between a rearward position in engagement with said driving clutch part for rotating said driver and a forward release position, spring means between said clutch parts for urging said driven clutch part to said release position, a screwdriving bit on said driver for engaging said driving groove means of said fastener simultaneously with saiD driven clutch part being moved to said rearward position thereof as a result of said fastener striking said workpiece, and slots in said guide body extending sidewise along the path of movement of said driver for supporting said guide jaws therein nonrotatably relative to said driver.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |