CA2051728C - Fastener having recessed, non-circular head, and fastener-driving tool - Google Patents
Fastener having recessed, non-circular head, and fastener-driving toolInfo
- Publication number
- CA2051728C CA2051728C CA002051728A CA2051728A CA2051728C CA 2051728 C CA2051728 C CA 2051728C CA 002051728 A CA002051728 A CA 002051728A CA 2051728 A CA2051728 A CA 2051728A CA 2051728 C CA2051728 C CA 2051728C
- Authority
- CA
- Canada
- Prior art keywords
- fastener
- head
- centering pin
- driving
- socket
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 230000002093 peripheral effect Effects 0.000 claims 12
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000005553 drilling Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0053—Specially shaped nuts or heads of bolts or screws for rotations by a tool with a conical or prismatic recess for receiving a centering pin of the tool apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B31/00—Hand tools for applying fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D15/00—Apparatus or tools for roof working
- E04D15/04—Apparatus or tools for roof working for roof coverings comprising slabs, sheets or flexible material
- E04D2015/042—Fixing to the roof supporting structure
- E04D2015/047—Fixing to the roof supporting structure by screwing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
- F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
- F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/01—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening elements specially adapted for honeycomb panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Clamps And Clips (AREA)
- Connection Of Plates (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
An improved fastener having a non-circular head with a concave recess providing a datum useful in centering the head relative to a non-circular socket of a driving member. The recess may have a frusto-conical wall defining an upper, circular edge or substantially triangular walls defining an upper, non-circular edge.
An improved tool useful to drive the improved fastener.
In the improved tool, a driving member has a tubular extension with a non-circular socket, and a centering pin is movable axially toward an extended position, in which a convex end of the centering pin fits into the concave recess when the socket is fitted axially over the fastener head. The centering pin is biased toward the extended position.
An improved tool useful to drive the improved fastener.
In the improved tool, a driving member has a tubular extension with a non-circular socket, and a centering pin is movable axially toward an extended position, in which a convex end of the centering pin fits into the concave recess when the socket is fitted axially over the fastener head. The centering pin is biased toward the extended position.
Description
~:~5~7~3 FASTENER HAVING RECESSED, NON-CIRCULAR
HEAD AND FA~ K-DRIVING TOOL
Technical Field of the Invention This invention pertains to an improved fastener having a non-circular or polygonal head and having a shank with a threaded portion, such as a screw having a hexagonal head and having a shank with a threaded portion and with a drilling tip, and to a fastener-driving tool having a non-circular or polygonal socket for driving such a fastener. This invention provides an improved way to center the non-circular socket and the non-circular head relative to each other via a centering pin coacting with a concave recess in the non-circular head.
Background of the Invention So-called stand-up screw guns, which are powered by trigger-actuated, electric motors, are exemplified in Murray U.S. Patent No. 3,960,191, Dewey U.S. Patent No. 4,236,555, and Dewey U.S. Patent No.
4,397,412 and are available commercially from ITW-Buildex (a unit of Illinois Tool Works Inc.) of Itasca, Illinois, under its AUTOTRAXX trademar~.
Typically, stand-up screw guns employ driving members with driving tips, such as driving tips adapted to drive Phillips-head screws. Fastener-driving tools of other types, which may be powered by electric motors or by pneumatic motors, employ driving members with driving sockets, which fit axially over conforming heads of fasteners, such as screws or bolts. Typically, the sockets and fastener heads are non-circular or polygonal when viewed axially. Commonly, the sockets and fastener heads are hexagonal when viewed axially.
Often, it is difficult for a user to center the non-circular socket of such a tool and the non-circular head of such a fastener, particularly if a ~.
HEAD AND FA~ K-DRIVING TOOL
Technical Field of the Invention This invention pertains to an improved fastener having a non-circular or polygonal head and having a shank with a threaded portion, such as a screw having a hexagonal head and having a shank with a threaded portion and with a drilling tip, and to a fastener-driving tool having a non-circular or polygonal socket for driving such a fastener. This invention provides an improved way to center the non-circular socket and the non-circular head relative to each other via a centering pin coacting with a concave recess in the non-circular head.
Background of the Invention So-called stand-up screw guns, which are powered by trigger-actuated, electric motors, are exemplified in Murray U.S. Patent No. 3,960,191, Dewey U.S. Patent No. 4,236,555, and Dewey U.S. Patent No.
4,397,412 and are available commercially from ITW-Buildex (a unit of Illinois Tool Works Inc.) of Itasca, Illinois, under its AUTOTRAXX trademar~.
Typically, stand-up screw guns employ driving members with driving tips, such as driving tips adapted to drive Phillips-head screws. Fastener-driving tools of other types, which may be powered by electric motors or by pneumatic motors, employ driving members with driving sockets, which fit axially over conforming heads of fasteners, such as screws or bolts. Typically, the sockets and fastener heads are non-circular or polygonal when viewed axially. Commonly, the sockets and fastener heads are hexagonal when viewed axially.
Often, it is difficult for a user to center the non-circular socket of such a tool and the non-circular head of such a fastener, particularly if a ~.
- 2 ~ 29~ 1 728 stand-up screw gun is used. Although a bolt or machine screw can be manually started for a few turns into a prethreaded hole in a workpiece, it is difficult for a user to stabilize a screw having a non-circular head and having a drilling or tapping tip before S the screw has been driven for a few turns into a workpiece.
Centering of the non-circular socket of a fastener-driving tool and the non-circular head of such a screw, therefore, can be especially difficult for a user.
If the non-circular socket of such a fastener-driving tool and the non-circular head of such a fastener are not centered relative to each other, it is possible for the fastener, the workpiece, or both to be damaged if an attempt is made to drive the fastener into the workpiece via the fastener-driving tool. The non-circular socket may be damaged also.
Therefore, there has been a need, to which this invention is addressed, for an improved way to center the non-circular socket of such a fastener-driving tool and the non-circular head of such a fastener relative to each other.
Summary of the Invention This invention provides an improved fastener having a head that is non-circular when viewed axially. Moreover, this invention provides improvements in a fastener-driving tool having a driving member with a socket that is non-circular when viewed axially, whereby the improved tool is useful for driving the improved fastener. This invention facilitates centering of the non-circular socket of the improved tool and the non-circular head of the improved fastener relative to each other via a centering pin coacting with a concave recess in the non-circular head.
More particularly, the improved fastener, which has an axis, has a head and a shank, which has a threaded portion.
The shank may be fully threaded or may be alternatively ~05~7~8 _ - 3 -provided with a drilling or tapping tip. It is preferred for the shank to have a drilling tip. The head is non-circular, preferably hexagonal, when viewed axially, so as to adapt the head to coact with a driving member having a suitably shaped socket in a fastener-driving tool, such as a stand-up screw gun or a hand-held screw gun. The head is adapted, therefore, to coact with the non-circular socket of the driving member of the improved tool.
The head of the improved fastener has a concave recess extending axially into the head. The concave recess defines a continuous, upper edge, which conforms preferably to a circle or alternately to a regular polygon. The concave recess can be thus distinguished from a slotted, cross-shaped, or other recess designed to receive a screwdriver blade. The concave recess provides a datum useful in centering the non-circular socket of the driving member of a fas~ener-driving tool, as discussed in the preceding paragraph, and the non-circular head of the improved fastener relative to each other. Moreover, as explained below, the concave recess adapts the fastener to coact with a centering pin associated with such a driving member.
In a preferred embodiment of the improved fastener, the concave recess has a frusto-conical surface, which is coaxial with the fastener. The frusto-conical surface defines a continuous, upper edge, which conforms to a circle.
In an alternate embodiment of this invention, the concave recess has a plurality of substantially triangular surfaces, which are arranged in a regular array about the axis of the fastener. The substantially triangular surfaces define a continuous, upper edge, which conforms to a regular polygon. Preferably, in such an embodiment, the concave recess has six such surfaces defining a continuous, upper edge conforming to -- 4 - 2 ~5 1 728 a regular hexagon.
The improved tool comprises a novel combination of a driving member and a centering pin assembled to the driving member for axial movement of the centering pin relative to the driving member. The improved tool is useful to drive a fastener including the improved fastener disclosed herein.
The driving member, which has an axis, has a tubular extension with a socket extending axially into the tubular extension and being non-circular when viewed axially. The socket is adapted to be axially fitted over the head of the fastener so as to define a driving relationship, in which the driving member is arranged to drive the fastener.
The centering pin, which has an axis coinciding generally with the axis of the driving member, is assembled to lS the driving member for axial movement of the centering pin between an extended position and retracted positions. The centering pin is biased toward the extended position. The centering pin, which has a convex end, extends axially through the socket in the extended position but is retracted axially in the retracted positions. The centering pin is adapted to fit at the convex end into the concave recess in the head of the fastener and to be axially moved from the extended position to one of the retracted positions so as to center the socket and the fastener head relative to each other.
The driving member is movable between inoperative positions, in which the centering pin is spaced from the fastener head and an operative position, in which the centering pin is fitted at the convex end into the concave recess in the fastener head and is moved axially from the extended position to one of the retracted positions. Accordingly, as the driving member is moved to the operative position, the socket . 2~S~728 and the fastener head are centered relative to each other.
In a preferred embodiment of the improved tool, the convex end of the centering pin has a frusto-conical surface, which converges toward the axis of thecentering pin. Thus, the improved tool has particular utility to drive the improved fastener if the concave recess in the fastener head has a frusto-conical surface, although the frusto-conical surface of the convex end of the centering pin can be also used if the concave recess has a plurality of substantially triangular facets.
In an alternate embodiment of the improved tool, the convex end of the centering pin has a plurality of substantially triangular facets, which are arranged in a regular array about the axis of the centering pin. The substantially triangular facets converge toward the axis of the centering pin.
Preferably, in such an embodiment, the convex end of the centering pin has six such facets conforming substantially to a pyramid having a hexagonal base.
Thus, the improved tool has particular utility to drive the improved fastener if the concave recess in the fastener head has a similar array of substantially triangular surfaces, whereupon the socket and the fastener head are oriented similarly in a rotational sense about their respective axes when centered relative to each other.
In a preferred cor.struction, the tubular extension is connected mechanically to the driving member, and an annular retainer is disposed within the tubular extension. The retainer, which may be press-fitted into the tubular extension, has a central aperture, through which the centering pin extends for axial movement of the centering pin relative to the retainer. In the preferred construction, the centering - 6 - 2~5~
pin has an annular rib, which is disposed within the tubular extension. The rib is adapted to engage the retainer upon axial movement of the centering pin to the extended position. Moreover, in the preferred construction, the centering pin is biased by a coiled spring disposed within the tubular extension so as to bear against the rib.
These and other objects, features, and advantages of this invention are evident from the following description of preferred embodiments of the improved fastener and the improved tool, with reference to the accompanying drawings.
Brief Description of the Drawinqs Figure 1 is an elevational view of a stand-up screw gun constituting a preferred embodiment of the improved tool.
Figure 2, on a larger scale, is a fragmentary, exploded view of some components of the stand-up screw gun shown in Figure 1, along with a screw constituting a preferred embodiment of the improved fastener.
Figure 3 is an axial view of some components shown in Figure 2, namely a driving member with a non-circular socket and a centering pin, as taken along line 3--3 of Figure 2, in a direction indicated by arrows.
Figure 4, on a similar scale, and Figures 5 through 8, on a larger scale, are sequential, fragmentary views through some components of the stand-up screw gun shown in Figures 1, 2, and 3, as used to drive the screw shown in Figure 2 through two decking members at an overlapped seam, into one flange of an I-beam, which is shown only in Figure 8. Some elements shown in Figure 4 are omitted in Figures 5 through 8.
Figure 9 is an enlarged, fragmentary, elevational detail of a modified socket coacting with 3s the screw shown in Figure 2.
Figure 10 is an enlarged, fragmentary, 2~7~B
perspective detail of a centering pin having a modified, convex end according to an alternate embodiment of the improved tool, along with a screw according to an alternate embodiment of the improved fastener.
Figure 11, on a smaller scale compared to Figure 10, is an axial view looking upwardly at the centering pin and related components of the improved tool according to the alternate embodiment.
Detailed DescriPtion of Preferred Embodiments Although preferred and alternate embodiments of the improved tool and the improved fastener are illustrated in the drawings and are to be next described, it is to be here understood that this invention is not limited to these embodiments.
As shown in Figure 1 and other views, a stand-up screw-gun 10 constitutes a preferred embodiment of the improved tool provided by this invention. As shown in Figures 2 and 4 through 8, the screw gun 10 is useful to drive a screw through two decking members 14, 16, at an overlapped seam, into one flange 18 of an I-beam, as in a floor or roof construction. The screw gun 10 is shown as used to drive a screw 20 constituting a preferred embodiment of the novel fastener provided by this invention.
Except as illustrated in the drawings and described herein, the screw 20 is similar to the screw disclosed in Sygnator U.S. Patent No. 4,583,898.
Thus, the screw 20, which has an axis, has a head 22, a shank 24, and a washer-like portion 26 between the head 22 and the shank 24. The head 22 is hexagonal when viewed axially, so as to adapt the head 22 to coact with a suitably shaped socket of a fastener-driving tool, such as the socket of the screw gun lo to be later described. The shank 24 has a threaded portion Z8 adjoining the washer-like portion 26 and a drilling tip 30 adjoining the threaded portion 28. Details of a 20~7~8 _~ 8 drilling tip like the drilling tip 30 are found in the Sygnator patent noted above.
The screw 20 differs from the screw disclosed in the Sygnator patent noted above, and from other fasteners known heretofore, in having a concave recess 40 extending axially into the head 22, from a top surface 42 of the head 22. ~t is characteristic of the preferred embodiment of the novel fastener provided by this invention that the concave recess 40 has a frusto-conical surface 46 defining a conical angle and converging toward the axis of the screw 20. It is not necessary for the frusto-conical surface 46 to converge to a point on the axis of the screw 20. At the top surface 42, the frusto-conical surface 46 defines a continuous, upper edge 48 conforming to a circle.
Advantageously, the concave recess 40 provides a datum that is useful in centering a socket of a fastener-driving tool, such as the screw gun 10 to be next described, and the screw head 22 relative to each other before the fastener-driving tool is used to drive the screw 20.
Except as illustrated in the drawings and described herein, the screw gun 10 is similar generally to stand-up screw guns disclosed in the Murray and Dewey patents noted above and specifically to stand-up screw guns available commercially from ITW-Buildex, supra, under its ACCUTRAXX trademark.
Broadly, the screw gun 10 comprises a nosepiece 50 having various components to be later described, two tubes in a telescoping relationship, namely an outer, upper tube 52 and an inner, lower tube 54 mounting the nosepiece 50, a driving member 56 mounted rotatably within the tubes 52, 54, and arranged to drive other components to be later described, and a driver 58 mounted to the upper tube`~52. The driver 58 is powered by an electric motor (not shown) and is - 9 - 2~5~7,~
arranged to be manually actuatable via a trigger 60 and to drive the driving member 56 rotationally when actuated. The tubes 52, 54, are biased by internal springs (not shown) to an elongated condition. The tubes 52, 54, are adapted to be axially telescoped to a shortened condition, when a user presses downwardly on the driver 58 with the nosepiece 50 pressed against a workpiece.
Further, the screw gun 10 comprises a screw-feeding tube 62, which is mounted to the nosepiece 50 via a mounting block 64 having a passageway 66 for guiding screws from the screw-feeding tube 62 into the nosepiece S0. Each screw must be individually dropped into the screw-feeding tube 62 in such manner that the shank of such screw leads the head of such screw.
The nosepiece 50 has an upper, tubular portion 72 arranged to receive each screw from the passageway 66, a lower, tubular portion 74, and a pair of lower flanges 76, 78, on opposite sides of the tubular portion 74. The flanges 76, 78, extend below the tubular portion 74 and are designed to be downwardly pressed against a workpiece when the screw gun 10 is used to drive a screw into or through the workpiece.
The nosepiece 50 has a pair of gripping jaws 80, 82, which are mounted between the flanges 76, 78, for pivotal movement of each of the jaws 80, 82, between a closed position and opened positions. Each of the jaws 80, 82, is shown in its closed position in Figures 4 through 7 and in one of its opened positions in Figure 8. The gripping jaw 80 is mounted for pivotal movement on a pivot pin 84, which is mounted to the flanges 76, 78, and is biased to its closed position by a coiled spring 86. The spring 86 is disposed operatively between an upper end 88 of the jaw 8 0 and the tubular portion 74 of the nosepiece 50. The end 88 has a pocket 90 receiving one end of the coiled spring 86. The gripping jaw 82 is mounted for pivotal movement on a pivot pin 92, which is mounted to the flanges 76, 78, and is biased to its closed position by a coiled spring 94. The spring 94 is disposed operatively between an upper end 96 of the jaw 82 and the tubular portion 74 of the nosepiece 50. The end 96 has a pocket 98 receiving one end of the coiled spring 94.
When each of the gripping jaws 80, 82, is in its closed position, the jaws 80, 82, are disposed loosely to grip the shank of a screw, as the shank 24 of the screw 20 is shown as gripped loosely in Figures 4 through 7, and further to prevent the head of the screw from dropping through the jaws 80, 82, if the nosepiece is not against a workpiece. Pivotal movement of the jaw 80, as biased by the spring 86, is limited by engagement between a shoulder 100 on the jaw 80 and the tubular portion 74 of the nosepiece 50. Pivotal movement of the jaw 82, as biased by the spring 94, is limited by engagement between a shoulder 102 on the jaw 82 and such portion 74.
The driving member 56, which has an axis, has a tubular extension 108. The tubular extension 108 defines a socket 110 extending axially into the tubular extension 108. The socket 110 is hexagonal when viewed axially, conforms generally to the head 22 of the screw 20, and is adapted to be axially fitted over the screw head 22. The tubular extension 108 is connected mechanically to the driving member 56, by having a partly threaded portion 112 threaded onto a partly threaded, tubular portion 114 of the driving member 56.
A centering pin 120, which has an axis that coincides generally with the axis of the driving member 56, is disposed within the tubular portion 114 of the driving member 56 for axial movement of the centering pin 120 relative to the driving member 56 between an extended position and retracted positions. In the 2~S~7~3 extended position, the centering pin 120 extends axially through the socket 110, as shown in Figures 4, 5, and 6.
The centering pin 120 is shown in a retracted position in Figures 7 and 8.
The centering pin 120 has a convex end 122 Xaving a frusto-conical surface 124 converging toward the axis of the centering pin 120. The frusto-conical surface 124 defines a conical angle that, preferably, is about equal to but not greater than the conical angle defined by the frusto-conical surface 46 of the concave recess 40 in the head 22 of the screw 20.
The centering pin 120 has an annular rib 126, which is disposed within the tubular portion 114 of the driving member 56. An annular retainer 128 is pressed into the tubular portion 114, below the annular rib 126, in such manner that the retainer 128 is held frictionally by the tubular portion 114. The rib 126 is adapted to engage the retainer 128 upon axial movement of the centering pin 120 to the extended position.
Thus, the retainer 128 retains the rib 126, so as to prevent the centering pin 120 from dropping from the tubular portion 114. A coiled spring 130 is disposed within the tubular portion 114, around the centering pin 120, so as to bear downwardly against the rib 126 and thus to bias the centering pin 120 toward the extended position.
The centering pin 120 is adapted to be axially fitted at the convex end 122 into the concave recess 40 in the head 22 of the screw 20. Also, the centering pin 120 is adapted to be axially moved from the extended position to a retracted position when pressed upwardly into the tubular extension 108. The centering pin 120 is used to center the socket 110 and the screw head 22 relative to each other.
The driving member 56 is movable between inoperative positions, in which the centering pin 120 is ~s~
., spaced from the head 22 of the screw 20, and an operative position. In the operative position, the centering pin 120 is fitted at the convex end 122 axially into the concave recess 40 in the screw head 22 and is moved axially from the extended position to a retracted position, whereby the centering pin 120 centers the socket 110 and the screw head 22 relative to each other.
When the driving member 56 has been moved to the operative position by a user pressing downwardly on the driver 58 and telescoping the tubes 52, 54, to the shortened condition with the nosepiece 50 pressed against a workpiece, such as the decking member 14 shown in Figure 8 and other views, the screw gun 10 maybe then actuated to drive the screw 20 via the driving member 56 with the socket 110 fitted axially over the head 22 of the screw 20, as illustrated in sequential stages in Figures 4 through 8. As shown in Figures 6, 7, and 8, the convex end 122 is fitted loosely into the concave recess 40, so as not to impart frictional drag as the screw 20 is driven. Moreover, as shown in Figure 8, the tubular extension 108 engages the washer-like portion 26 of the screw 20 after the socket 110 has been fitted axially over the head 22 of the screw 20, so as to limit axial movement of the socket 110 over the head 20 of the screw 20.
If the screw 20 should be slightly tipped, as suggested in Figure 5, and if the centering pin 120 were omitted, a user could face some difficulty in fitting 30 - the socket 110 axially over the head 22 of the screw 20.
Advantageously, the centering pin 120 facilitates centering the socket 110 and the screw head 22 relative to each other, ~o as to obviate such difficulty.
As shown in Figure 9, one possible enhancement of this invention is to chamfer lowèr edges 140 defined by the socket 110. Upper corners 142 defined by the head 22 of the screw 20 are rounded in a known manner.
The chamfered edges 140 and the rounded corners 142 facilitate centering the socket 110 and the screw head 22 relative to each other.
In Figures 10 and 11, primed reference numbers are used to designate elements that are similar or analogous to elements designated by similar, unprimed reference numbers in the other views.
An alternate embodiment of the improved fastener provided by this invention is constituted by a screw 20' similar to the screw 20, except that the concave recess 40' in the head 22' of the screw 20' has six substantially triangular surfaces 160, which are arranged in a regular array about the axis of the screw 20'. Such surfaces 160 define a continuous, upper edge 162, which conforms to a regular hexagon having each of six respective sides parallel to an adjacent one of six flat surfaces 164 of the screw head 22'.
An alternate embodiment of the improved tool provided by this invention is constituted by a stand-up screw gun 10' similar to the screw gun 10, except for the centering pin 120' and the annular retainer 128', which is fitted into the tubular extension 114' in such manner that the retainer is held frictionally by the tubular extension 114'.
The centering pin 120' is hexagonal in cross-section, except for an annular rib (not shown) similar to the annular rib 126 used in the screw gun 10. The annular retainer 128' is shaped complementarily, as shown in Figure 11, so that ~he centering pin lZ0' rotates conjointly with the socket 110', which is hexagonal when viewed axially. The centering pin 120' and the socket 110' are oriented similarly in a rotational sense, whereby each of six axially extending, flat surfaces 166 defined by the centering pin 120' is parallel to an adjacent one of six flat surfaces 168 - 14 - ;~S9~7;;~
. .
defined by the socket 110' in the tubular extension 108'.
The convex end 122' of the centering pin 120' conforms generally to the concave recess 40' in the head 22' of the screw 20' and has six substantially triangular facets 170 arranged in a regular array about the axis of the centering pin 120'. The facets 170 converge toward the axis of the centering pin 120' and conform substantially to a pyramid having a regular, hexagonal base. The convex end 122' has a small, blunt tip 172. -Because the centering pin 120' rotates conjointly with the socket 110', the centering pin 120' orients the screw 20' in such manner that the socket 110' and the head 22' of the screw 20' are oriented similarly in a rotational sense, when the convex end 122' of the centering pin 120' is fitted axially into the concave recess 40' in the head 22 of the screw 20.
Thus, when the socket 110' and the screw head 122' are oriented similarly in a rotational sense as well as centered relative to each other, the socket 110' can be axially fitted over the screw head 22' without interference.
Various modifications may be made in the improved tool or in the improved fastener without departing from the scope and spirit of this invention.
Centering of the non-circular socket of a fastener-driving tool and the non-circular head of such a screw, therefore, can be especially difficult for a user.
If the non-circular socket of such a fastener-driving tool and the non-circular head of such a fastener are not centered relative to each other, it is possible for the fastener, the workpiece, or both to be damaged if an attempt is made to drive the fastener into the workpiece via the fastener-driving tool. The non-circular socket may be damaged also.
Therefore, there has been a need, to which this invention is addressed, for an improved way to center the non-circular socket of such a fastener-driving tool and the non-circular head of such a fastener relative to each other.
Summary of the Invention This invention provides an improved fastener having a head that is non-circular when viewed axially. Moreover, this invention provides improvements in a fastener-driving tool having a driving member with a socket that is non-circular when viewed axially, whereby the improved tool is useful for driving the improved fastener. This invention facilitates centering of the non-circular socket of the improved tool and the non-circular head of the improved fastener relative to each other via a centering pin coacting with a concave recess in the non-circular head.
More particularly, the improved fastener, which has an axis, has a head and a shank, which has a threaded portion.
The shank may be fully threaded or may be alternatively ~05~7~8 _ - 3 -provided with a drilling or tapping tip. It is preferred for the shank to have a drilling tip. The head is non-circular, preferably hexagonal, when viewed axially, so as to adapt the head to coact with a driving member having a suitably shaped socket in a fastener-driving tool, such as a stand-up screw gun or a hand-held screw gun. The head is adapted, therefore, to coact with the non-circular socket of the driving member of the improved tool.
The head of the improved fastener has a concave recess extending axially into the head. The concave recess defines a continuous, upper edge, which conforms preferably to a circle or alternately to a regular polygon. The concave recess can be thus distinguished from a slotted, cross-shaped, or other recess designed to receive a screwdriver blade. The concave recess provides a datum useful in centering the non-circular socket of the driving member of a fas~ener-driving tool, as discussed in the preceding paragraph, and the non-circular head of the improved fastener relative to each other. Moreover, as explained below, the concave recess adapts the fastener to coact with a centering pin associated with such a driving member.
In a preferred embodiment of the improved fastener, the concave recess has a frusto-conical surface, which is coaxial with the fastener. The frusto-conical surface defines a continuous, upper edge, which conforms to a circle.
In an alternate embodiment of this invention, the concave recess has a plurality of substantially triangular surfaces, which are arranged in a regular array about the axis of the fastener. The substantially triangular surfaces define a continuous, upper edge, which conforms to a regular polygon. Preferably, in such an embodiment, the concave recess has six such surfaces defining a continuous, upper edge conforming to -- 4 - 2 ~5 1 728 a regular hexagon.
The improved tool comprises a novel combination of a driving member and a centering pin assembled to the driving member for axial movement of the centering pin relative to the driving member. The improved tool is useful to drive a fastener including the improved fastener disclosed herein.
The driving member, which has an axis, has a tubular extension with a socket extending axially into the tubular extension and being non-circular when viewed axially. The socket is adapted to be axially fitted over the head of the fastener so as to define a driving relationship, in which the driving member is arranged to drive the fastener.
The centering pin, which has an axis coinciding generally with the axis of the driving member, is assembled to lS the driving member for axial movement of the centering pin between an extended position and retracted positions. The centering pin is biased toward the extended position. The centering pin, which has a convex end, extends axially through the socket in the extended position but is retracted axially in the retracted positions. The centering pin is adapted to fit at the convex end into the concave recess in the head of the fastener and to be axially moved from the extended position to one of the retracted positions so as to center the socket and the fastener head relative to each other.
The driving member is movable between inoperative positions, in which the centering pin is spaced from the fastener head and an operative position, in which the centering pin is fitted at the convex end into the concave recess in the fastener head and is moved axially from the extended position to one of the retracted positions. Accordingly, as the driving member is moved to the operative position, the socket . 2~S~728 and the fastener head are centered relative to each other.
In a preferred embodiment of the improved tool, the convex end of the centering pin has a frusto-conical surface, which converges toward the axis of thecentering pin. Thus, the improved tool has particular utility to drive the improved fastener if the concave recess in the fastener head has a frusto-conical surface, although the frusto-conical surface of the convex end of the centering pin can be also used if the concave recess has a plurality of substantially triangular facets.
In an alternate embodiment of the improved tool, the convex end of the centering pin has a plurality of substantially triangular facets, which are arranged in a regular array about the axis of the centering pin. The substantially triangular facets converge toward the axis of the centering pin.
Preferably, in such an embodiment, the convex end of the centering pin has six such facets conforming substantially to a pyramid having a hexagonal base.
Thus, the improved tool has particular utility to drive the improved fastener if the concave recess in the fastener head has a similar array of substantially triangular surfaces, whereupon the socket and the fastener head are oriented similarly in a rotational sense about their respective axes when centered relative to each other.
In a preferred cor.struction, the tubular extension is connected mechanically to the driving member, and an annular retainer is disposed within the tubular extension. The retainer, which may be press-fitted into the tubular extension, has a central aperture, through which the centering pin extends for axial movement of the centering pin relative to the retainer. In the preferred construction, the centering - 6 - 2~5~
pin has an annular rib, which is disposed within the tubular extension. The rib is adapted to engage the retainer upon axial movement of the centering pin to the extended position. Moreover, in the preferred construction, the centering pin is biased by a coiled spring disposed within the tubular extension so as to bear against the rib.
These and other objects, features, and advantages of this invention are evident from the following description of preferred embodiments of the improved fastener and the improved tool, with reference to the accompanying drawings.
Brief Description of the Drawinqs Figure 1 is an elevational view of a stand-up screw gun constituting a preferred embodiment of the improved tool.
Figure 2, on a larger scale, is a fragmentary, exploded view of some components of the stand-up screw gun shown in Figure 1, along with a screw constituting a preferred embodiment of the improved fastener.
Figure 3 is an axial view of some components shown in Figure 2, namely a driving member with a non-circular socket and a centering pin, as taken along line 3--3 of Figure 2, in a direction indicated by arrows.
Figure 4, on a similar scale, and Figures 5 through 8, on a larger scale, are sequential, fragmentary views through some components of the stand-up screw gun shown in Figures 1, 2, and 3, as used to drive the screw shown in Figure 2 through two decking members at an overlapped seam, into one flange of an I-beam, which is shown only in Figure 8. Some elements shown in Figure 4 are omitted in Figures 5 through 8.
Figure 9 is an enlarged, fragmentary, elevational detail of a modified socket coacting with 3s the screw shown in Figure 2.
Figure 10 is an enlarged, fragmentary, 2~7~B
perspective detail of a centering pin having a modified, convex end according to an alternate embodiment of the improved tool, along with a screw according to an alternate embodiment of the improved fastener.
Figure 11, on a smaller scale compared to Figure 10, is an axial view looking upwardly at the centering pin and related components of the improved tool according to the alternate embodiment.
Detailed DescriPtion of Preferred Embodiments Although preferred and alternate embodiments of the improved tool and the improved fastener are illustrated in the drawings and are to be next described, it is to be here understood that this invention is not limited to these embodiments.
As shown in Figure 1 and other views, a stand-up screw-gun 10 constitutes a preferred embodiment of the improved tool provided by this invention. As shown in Figures 2 and 4 through 8, the screw gun 10 is useful to drive a screw through two decking members 14, 16, at an overlapped seam, into one flange 18 of an I-beam, as in a floor or roof construction. The screw gun 10 is shown as used to drive a screw 20 constituting a preferred embodiment of the novel fastener provided by this invention.
Except as illustrated in the drawings and described herein, the screw 20 is similar to the screw disclosed in Sygnator U.S. Patent No. 4,583,898.
Thus, the screw 20, which has an axis, has a head 22, a shank 24, and a washer-like portion 26 between the head 22 and the shank 24. The head 22 is hexagonal when viewed axially, so as to adapt the head 22 to coact with a suitably shaped socket of a fastener-driving tool, such as the socket of the screw gun lo to be later described. The shank 24 has a threaded portion Z8 adjoining the washer-like portion 26 and a drilling tip 30 adjoining the threaded portion 28. Details of a 20~7~8 _~ 8 drilling tip like the drilling tip 30 are found in the Sygnator patent noted above.
The screw 20 differs from the screw disclosed in the Sygnator patent noted above, and from other fasteners known heretofore, in having a concave recess 40 extending axially into the head 22, from a top surface 42 of the head 22. ~t is characteristic of the preferred embodiment of the novel fastener provided by this invention that the concave recess 40 has a frusto-conical surface 46 defining a conical angle and converging toward the axis of the screw 20. It is not necessary for the frusto-conical surface 46 to converge to a point on the axis of the screw 20. At the top surface 42, the frusto-conical surface 46 defines a continuous, upper edge 48 conforming to a circle.
Advantageously, the concave recess 40 provides a datum that is useful in centering a socket of a fastener-driving tool, such as the screw gun 10 to be next described, and the screw head 22 relative to each other before the fastener-driving tool is used to drive the screw 20.
Except as illustrated in the drawings and described herein, the screw gun 10 is similar generally to stand-up screw guns disclosed in the Murray and Dewey patents noted above and specifically to stand-up screw guns available commercially from ITW-Buildex, supra, under its ACCUTRAXX trademark.
Broadly, the screw gun 10 comprises a nosepiece 50 having various components to be later described, two tubes in a telescoping relationship, namely an outer, upper tube 52 and an inner, lower tube 54 mounting the nosepiece 50, a driving member 56 mounted rotatably within the tubes 52, 54, and arranged to drive other components to be later described, and a driver 58 mounted to the upper tube`~52. The driver 58 is powered by an electric motor (not shown) and is - 9 - 2~5~7,~
arranged to be manually actuatable via a trigger 60 and to drive the driving member 56 rotationally when actuated. The tubes 52, 54, are biased by internal springs (not shown) to an elongated condition. The tubes 52, 54, are adapted to be axially telescoped to a shortened condition, when a user presses downwardly on the driver 58 with the nosepiece 50 pressed against a workpiece.
Further, the screw gun 10 comprises a screw-feeding tube 62, which is mounted to the nosepiece 50 via a mounting block 64 having a passageway 66 for guiding screws from the screw-feeding tube 62 into the nosepiece S0. Each screw must be individually dropped into the screw-feeding tube 62 in such manner that the shank of such screw leads the head of such screw.
The nosepiece 50 has an upper, tubular portion 72 arranged to receive each screw from the passageway 66, a lower, tubular portion 74, and a pair of lower flanges 76, 78, on opposite sides of the tubular portion 74. The flanges 76, 78, extend below the tubular portion 74 and are designed to be downwardly pressed against a workpiece when the screw gun 10 is used to drive a screw into or through the workpiece.
The nosepiece 50 has a pair of gripping jaws 80, 82, which are mounted between the flanges 76, 78, for pivotal movement of each of the jaws 80, 82, between a closed position and opened positions. Each of the jaws 80, 82, is shown in its closed position in Figures 4 through 7 and in one of its opened positions in Figure 8. The gripping jaw 80 is mounted for pivotal movement on a pivot pin 84, which is mounted to the flanges 76, 78, and is biased to its closed position by a coiled spring 86. The spring 86 is disposed operatively between an upper end 88 of the jaw 8 0 and the tubular portion 74 of the nosepiece 50. The end 88 has a pocket 90 receiving one end of the coiled spring 86. The gripping jaw 82 is mounted for pivotal movement on a pivot pin 92, which is mounted to the flanges 76, 78, and is biased to its closed position by a coiled spring 94. The spring 94 is disposed operatively between an upper end 96 of the jaw 82 and the tubular portion 74 of the nosepiece 50. The end 96 has a pocket 98 receiving one end of the coiled spring 94.
When each of the gripping jaws 80, 82, is in its closed position, the jaws 80, 82, are disposed loosely to grip the shank of a screw, as the shank 24 of the screw 20 is shown as gripped loosely in Figures 4 through 7, and further to prevent the head of the screw from dropping through the jaws 80, 82, if the nosepiece is not against a workpiece. Pivotal movement of the jaw 80, as biased by the spring 86, is limited by engagement between a shoulder 100 on the jaw 80 and the tubular portion 74 of the nosepiece 50. Pivotal movement of the jaw 82, as biased by the spring 94, is limited by engagement between a shoulder 102 on the jaw 82 and such portion 74.
The driving member 56, which has an axis, has a tubular extension 108. The tubular extension 108 defines a socket 110 extending axially into the tubular extension 108. The socket 110 is hexagonal when viewed axially, conforms generally to the head 22 of the screw 20, and is adapted to be axially fitted over the screw head 22. The tubular extension 108 is connected mechanically to the driving member 56, by having a partly threaded portion 112 threaded onto a partly threaded, tubular portion 114 of the driving member 56.
A centering pin 120, which has an axis that coincides generally with the axis of the driving member 56, is disposed within the tubular portion 114 of the driving member 56 for axial movement of the centering pin 120 relative to the driving member 56 between an extended position and retracted positions. In the 2~S~7~3 extended position, the centering pin 120 extends axially through the socket 110, as shown in Figures 4, 5, and 6.
The centering pin 120 is shown in a retracted position in Figures 7 and 8.
The centering pin 120 has a convex end 122 Xaving a frusto-conical surface 124 converging toward the axis of the centering pin 120. The frusto-conical surface 124 defines a conical angle that, preferably, is about equal to but not greater than the conical angle defined by the frusto-conical surface 46 of the concave recess 40 in the head 22 of the screw 20.
The centering pin 120 has an annular rib 126, which is disposed within the tubular portion 114 of the driving member 56. An annular retainer 128 is pressed into the tubular portion 114, below the annular rib 126, in such manner that the retainer 128 is held frictionally by the tubular portion 114. The rib 126 is adapted to engage the retainer 128 upon axial movement of the centering pin 120 to the extended position.
Thus, the retainer 128 retains the rib 126, so as to prevent the centering pin 120 from dropping from the tubular portion 114. A coiled spring 130 is disposed within the tubular portion 114, around the centering pin 120, so as to bear downwardly against the rib 126 and thus to bias the centering pin 120 toward the extended position.
The centering pin 120 is adapted to be axially fitted at the convex end 122 into the concave recess 40 in the head 22 of the screw 20. Also, the centering pin 120 is adapted to be axially moved from the extended position to a retracted position when pressed upwardly into the tubular extension 108. The centering pin 120 is used to center the socket 110 and the screw head 22 relative to each other.
The driving member 56 is movable between inoperative positions, in which the centering pin 120 is ~s~
., spaced from the head 22 of the screw 20, and an operative position. In the operative position, the centering pin 120 is fitted at the convex end 122 axially into the concave recess 40 in the screw head 22 and is moved axially from the extended position to a retracted position, whereby the centering pin 120 centers the socket 110 and the screw head 22 relative to each other.
When the driving member 56 has been moved to the operative position by a user pressing downwardly on the driver 58 and telescoping the tubes 52, 54, to the shortened condition with the nosepiece 50 pressed against a workpiece, such as the decking member 14 shown in Figure 8 and other views, the screw gun 10 maybe then actuated to drive the screw 20 via the driving member 56 with the socket 110 fitted axially over the head 22 of the screw 20, as illustrated in sequential stages in Figures 4 through 8. As shown in Figures 6, 7, and 8, the convex end 122 is fitted loosely into the concave recess 40, so as not to impart frictional drag as the screw 20 is driven. Moreover, as shown in Figure 8, the tubular extension 108 engages the washer-like portion 26 of the screw 20 after the socket 110 has been fitted axially over the head 22 of the screw 20, so as to limit axial movement of the socket 110 over the head 20 of the screw 20.
If the screw 20 should be slightly tipped, as suggested in Figure 5, and if the centering pin 120 were omitted, a user could face some difficulty in fitting 30 - the socket 110 axially over the head 22 of the screw 20.
Advantageously, the centering pin 120 facilitates centering the socket 110 and the screw head 22 relative to each other, ~o as to obviate such difficulty.
As shown in Figure 9, one possible enhancement of this invention is to chamfer lowèr edges 140 defined by the socket 110. Upper corners 142 defined by the head 22 of the screw 20 are rounded in a known manner.
The chamfered edges 140 and the rounded corners 142 facilitate centering the socket 110 and the screw head 22 relative to each other.
In Figures 10 and 11, primed reference numbers are used to designate elements that are similar or analogous to elements designated by similar, unprimed reference numbers in the other views.
An alternate embodiment of the improved fastener provided by this invention is constituted by a screw 20' similar to the screw 20, except that the concave recess 40' in the head 22' of the screw 20' has six substantially triangular surfaces 160, which are arranged in a regular array about the axis of the screw 20'. Such surfaces 160 define a continuous, upper edge 162, which conforms to a regular hexagon having each of six respective sides parallel to an adjacent one of six flat surfaces 164 of the screw head 22'.
An alternate embodiment of the improved tool provided by this invention is constituted by a stand-up screw gun 10' similar to the screw gun 10, except for the centering pin 120' and the annular retainer 128', which is fitted into the tubular extension 114' in such manner that the retainer is held frictionally by the tubular extension 114'.
The centering pin 120' is hexagonal in cross-section, except for an annular rib (not shown) similar to the annular rib 126 used in the screw gun 10. The annular retainer 128' is shaped complementarily, as shown in Figure 11, so that ~he centering pin lZ0' rotates conjointly with the socket 110', which is hexagonal when viewed axially. The centering pin 120' and the socket 110' are oriented similarly in a rotational sense, whereby each of six axially extending, flat surfaces 166 defined by the centering pin 120' is parallel to an adjacent one of six flat surfaces 168 - 14 - ;~S9~7;;~
. .
defined by the socket 110' in the tubular extension 108'.
The convex end 122' of the centering pin 120' conforms generally to the concave recess 40' in the head 22' of the screw 20' and has six substantially triangular facets 170 arranged in a regular array about the axis of the centering pin 120'. The facets 170 converge toward the axis of the centering pin 120' and conform substantially to a pyramid having a regular, hexagonal base. The convex end 122' has a small, blunt tip 172. -Because the centering pin 120' rotates conjointly with the socket 110', the centering pin 120' orients the screw 20' in such manner that the socket 110' and the head 22' of the screw 20' are oriented similarly in a rotational sense, when the convex end 122' of the centering pin 120' is fitted axially into the concave recess 40' in the head 22 of the screw 20.
Thus, when the socket 110' and the screw head 122' are oriented similarly in a rotational sense as well as centered relative to each other, the socket 110' can be axially fitted over the screw head 22' without interference.
Various modifications may be made in the improved tool or in the improved fastener without departing from the scope and spirit of this invention.
Claims (27)
1. A fastener-driving tool, useful to drive a fastener having a longitudinal axis, a shank having a threaded portion and a head which is non-circular when viewed axially and which has a concave recess extending into said head, comprising:
a tubular housing having an internal peripheral surface and a lower forward end for enveloping said head of said fastener;
a driving member having a longitudinal axis and a socket portion which is non-circular when viewed axially and which is movably disposed within said tubular housing so as to be movably engaged with said internal peripheral surface of said tubular housing and thereby be movably guided by said tubular housing, including said lower forward end thereof enveloping said head of said fastener, in order to be properly aligned with respect to said head of said fastener, enveloped by said lower forward end of said tubular housing and thereby be axially fitted over and drivingly engaged with said non-circular head of said fastener so as to define a driving relationship therewith by which said driving member is arranged to drive said fastener in a driving direction;
port means defined within a first sidewall portion of said tubular housing for delivering a fastener into a first hollow, upstream portion of said tubular housing, as viewed in said driving direction and toward an axial position of said tool which is substantially coaxial with said longitudinal axis of said driving member;
support means disposed downstream of said port means, as viewed in said driving direction and pivotably mounted within the vicinity of second sidewall portions of said tubular housing, disposed downstream of said port means as viewed in said direction, for engaging said shank of said fastener so as to position said head of said fastener within said lower forward end of said tubular housing, as viewed in said driving direction and in a substantially coaxial manner with respect to said socket portion of said driving member prior to engagement of said socket portion of said driving member with said non-circular head of said fastener;
a centering pin having a longitudinal axis substantially coinciding with said axis of said driving member and being assembled to said driving member for axial movement relative to said socket portion of said driving member between an extended position and a retracted position wherein said centering pin is biased toward said extended position, said centering pin having a convex end extending axially through said socket portion of said driving member in such a manner that said convex end of said centering pin extends axially beyond said socket portion of said driving member when said centering pin is disposed at said extended position so as to fit into said concave recess of said head of said fastener prior to engagement of said socket portion of said driving member with said non-circular head of said fastener so as to insure said coaxial alignment of said fastener head with said socket portion of said driving member and wherein further, said convex end of said centering pin is axially movable from said extended position and into said socket portion to said retracted position when said socket portion is guidingly moved by said lower forward end of said tubular housing and toward said fastener, enveloped within said lower forward end of said tubular housing, so as to permit said socket portion of said driving member to be axially fitted over and engaged with said non-circular head of said fastener; and means for moving said driving member between an inoperative position, at which said centering pin and said socket portion are spaced from said head of said fastener and an operative position at which said centering pin is fitted at said convex end thereof into said concave recess defined within said head of said fastener and is moved axially from said extended position with respect to said socket portion to said retracted position inside said socket portion so as to center said socket portion and said head of said fastener relative to each other and at which said socket portion is guidably moved along said internal peripheral surface of said tubular housing, including said lower forward end thereof enveloping said head of said fastener, so as to properly engage said non-circular head of said fastener enveloped within said lower forward end of said tubular housing and centered with respect to said socket portion of said driving member by said centering pin.
a tubular housing having an internal peripheral surface and a lower forward end for enveloping said head of said fastener;
a driving member having a longitudinal axis and a socket portion which is non-circular when viewed axially and which is movably disposed within said tubular housing so as to be movably engaged with said internal peripheral surface of said tubular housing and thereby be movably guided by said tubular housing, including said lower forward end thereof enveloping said head of said fastener, in order to be properly aligned with respect to said head of said fastener, enveloped by said lower forward end of said tubular housing and thereby be axially fitted over and drivingly engaged with said non-circular head of said fastener so as to define a driving relationship therewith by which said driving member is arranged to drive said fastener in a driving direction;
port means defined within a first sidewall portion of said tubular housing for delivering a fastener into a first hollow, upstream portion of said tubular housing, as viewed in said driving direction and toward an axial position of said tool which is substantially coaxial with said longitudinal axis of said driving member;
support means disposed downstream of said port means, as viewed in said driving direction and pivotably mounted within the vicinity of second sidewall portions of said tubular housing, disposed downstream of said port means as viewed in said direction, for engaging said shank of said fastener so as to position said head of said fastener within said lower forward end of said tubular housing, as viewed in said driving direction and in a substantially coaxial manner with respect to said socket portion of said driving member prior to engagement of said socket portion of said driving member with said non-circular head of said fastener;
a centering pin having a longitudinal axis substantially coinciding with said axis of said driving member and being assembled to said driving member for axial movement relative to said socket portion of said driving member between an extended position and a retracted position wherein said centering pin is biased toward said extended position, said centering pin having a convex end extending axially through said socket portion of said driving member in such a manner that said convex end of said centering pin extends axially beyond said socket portion of said driving member when said centering pin is disposed at said extended position so as to fit into said concave recess of said head of said fastener prior to engagement of said socket portion of said driving member with said non-circular head of said fastener so as to insure said coaxial alignment of said fastener head with said socket portion of said driving member and wherein further, said convex end of said centering pin is axially movable from said extended position and into said socket portion to said retracted position when said socket portion is guidingly moved by said lower forward end of said tubular housing and toward said fastener, enveloped within said lower forward end of said tubular housing, so as to permit said socket portion of said driving member to be axially fitted over and engaged with said non-circular head of said fastener; and means for moving said driving member between an inoperative position, at which said centering pin and said socket portion are spaced from said head of said fastener and an operative position at which said centering pin is fitted at said convex end thereof into said concave recess defined within said head of said fastener and is moved axially from said extended position with respect to said socket portion to said retracted position inside said socket portion so as to center said socket portion and said head of said fastener relative to each other and at which said socket portion is guidably moved along said internal peripheral surface of said tubular housing, including said lower forward end thereof enveloping said head of said fastener, so as to properly engage said non-circular head of said fastener enveloped within said lower forward end of said tubular housing and centered with respect to said socket portion of said driving member by said centering pin.
2. The fastener-driving tool of claim 1 wherein the convex end of the centering pin has a frusto-conical surface converging toward the axis of the centering pin.
3. The fastener-driving tool of claim 1 wherein the convex end of the centering pin has a plurality of substantially triangular facets converging toward the axis of the centering pin.
4. The fastener-driving tool of claim 3 wherein the convex end of the centering pin has six of said facets conforming substantially to a pyramid having a regular, hexagonal base.
5. The fastener-driving tool of claim 1 wherein said socket comprises a tubular extension which is connected mechanically to the driving member, wherein an annular retainer is disposed at a fixed position within the tubular extension, the retainer having a central aperture, through which the centering pin extends for axial movement of the centering pin relative to the retainer, wherein the centering pin has an annular rib disposed slidably within the tubular extension and adapted to engage the retainer upon axial movement of the centering pin to the extended position and wherein the centering pin is biased by a coiled spring disposed within the tubular extension, around the centering pin, so as to bear against the rib.
6. The fastener-driving tool as set forth in claim 1, wherein:
said support means comprises a pair of jaw members pivotably mounted upon said tool between a first position at which said jaw members engage said shank of said fastener prior to engagement of said centering pin within said fastener head recess and said socket with said head of said fastener during driving of said fastener by said driving member and a second position at which said jaw members are disengaged from said shank of said fastener by said socket during a driving operation of said fastener by said driving member.
said support means comprises a pair of jaw members pivotably mounted upon said tool between a first position at which said jaw members engage said shank of said fastener prior to engagement of said centering pin within said fastener head recess and said socket with said head of said fastener during driving of said fastener by said driving member and a second position at which said jaw members are disengaged from said shank of said fastener by said socket during a driving operation of said fastener by said driving member.
7. A fastener-driving tool as set forth in claim 6, further comprising:
spring means interposed between said jaw members and said tool for biasing said jaw members toward said first position.
spring means interposed between said jaw members and said tool for biasing said jaw members toward said first position.
8. A fastener-driving tool as set forth in claim 1, wherein:
said non-circular cross-section of said socket comprises a hexagon.
said non-circular cross-section of said socket comprises a hexagon.
9. A fastener-driving tool as set forth in claim 1 wherein:
said tubular housing is elongated and operatively connected to a trigger-actuated driving mechanism so as to render said tool a stand-up screw gun.
said tubular housing is elongated and operatively connected to a trigger-actuated driving mechanism so as to render said tool a stand-up screw gun.
10. A fastener-driving tool as set forth in claim 9, wherein:
said gun comprises means for delivering screw-type fasteners to said port means and toward an axial position relative to said centering pin so as to be engaged by said support means.
said gun comprises means for delivering screw-type fasteners to said port means and toward an axial position relative to said centering pin so as to be engaged by said support means.
11. A fastener-driving tool as set forth in claim 10, wherein:
said means for delivering said fasteners comprises a feeding tube mounted upon said first sidewall portion of said tool and connected to said port means.
said means for delivering said fasteners comprises a feeding tube mounted upon said first sidewall portion of said tool and connected to said port means.
12. A fastener-driving tool for driving a fastener having a longitudinal axis, a shank and a head which has a concave recess defined therein, comprising:
a tubular housing having an internal peripheral surface and a forward end for enveloping said head of said fastener;
a driving member having a longitudinal axis and socket means which is movably disposed within said tubular housing so as to be movably engaged with said internal peripheral surface of said tubular housing and thereby be movably guided by said tubular housing, including said forward end thereof enveloping said head of said fastener, so as to be properly aligned with respect to said head of said fastener, enveloped by said forward end of said tubular housing, for engaging said head of said fastener so as to define a driving relationship therewith by means of which said driving member is arranged to drive said fastener in a driving direction;
centering pin means having a longitudinal axis substantially coaxial with said longitudinal axis of said driving member and movably mounted upon said driving member for axial movement between an extended position at which a convex end of said centering pin means is disposed beyond said socket means of said driving member so as to engage said concave recess of said fastener head prior to engagement of said socket means with said head of said fastener so as to insure coaxial alignment of said fastener head with said socket means and a retracted position at which said centering pin means is retracted within said socket means so as to permit said socket means to subsequently engage said head of said fastener, in accordance with said insured coaxial alignment predetermined by said centering pin means and as movably guided by said internal peripheral surface of said tubular housing, including said forward end of said tubular housing, as a result of said movable engagement of said socket means with said internal peripheral surface of said tubular housing and thereby define said driving relationship therewith;
port means defined within a first sidewall portion of said tubular housing for delivering a fastener into a first hollow, upstream portion of said tubular housing, as viewed in said driving direction and toward an axial position of said tool which is substantially coaxial with said longitudinal axis of said driving member; and support means disposed downstream of said port means, as viewed in said driving direction and pivotably mounted within the vicinity of second sidewall portions of said tubular housing, disposed downstream of said port means as viewed in said driving direction, for engaging said shank of said fastener so as to position said head of said fastener within said forward end of said tubular housing, as viewed in said driving direction and in a substantially coaxial manner with respect to said centering pin means such that upon axial movement of said fastener relative to said centering pin means and said socket means, said convex end of said centering pin means, initially axially spaced from said concave recess of said fastener head as predetermined by said engagement of said shank of said fastener by said support means, can engage said concave recess of said fastener head so as to insuredly define said coaxial alignment of said fastener, said centering pin means and said socket means and whereupon continued axial movement of said fastener and said centering pin means relative to said socket means, said socket means is movably guided within said tubular housing, as a result of said movable engagement of said socket means within said internal peripheral surface of said tubular housing, including said forward end of said tubular housing which envelops said head of said fastener, so as to properly engage said head of said fastener so as to define said driving relationship therewith.
a tubular housing having an internal peripheral surface and a forward end for enveloping said head of said fastener;
a driving member having a longitudinal axis and socket means which is movably disposed within said tubular housing so as to be movably engaged with said internal peripheral surface of said tubular housing and thereby be movably guided by said tubular housing, including said forward end thereof enveloping said head of said fastener, so as to be properly aligned with respect to said head of said fastener, enveloped by said forward end of said tubular housing, for engaging said head of said fastener so as to define a driving relationship therewith by means of which said driving member is arranged to drive said fastener in a driving direction;
centering pin means having a longitudinal axis substantially coaxial with said longitudinal axis of said driving member and movably mounted upon said driving member for axial movement between an extended position at which a convex end of said centering pin means is disposed beyond said socket means of said driving member so as to engage said concave recess of said fastener head prior to engagement of said socket means with said head of said fastener so as to insure coaxial alignment of said fastener head with said socket means and a retracted position at which said centering pin means is retracted within said socket means so as to permit said socket means to subsequently engage said head of said fastener, in accordance with said insured coaxial alignment predetermined by said centering pin means and as movably guided by said internal peripheral surface of said tubular housing, including said forward end of said tubular housing, as a result of said movable engagement of said socket means with said internal peripheral surface of said tubular housing and thereby define said driving relationship therewith;
port means defined within a first sidewall portion of said tubular housing for delivering a fastener into a first hollow, upstream portion of said tubular housing, as viewed in said driving direction and toward an axial position of said tool which is substantially coaxial with said longitudinal axis of said driving member; and support means disposed downstream of said port means, as viewed in said driving direction and pivotably mounted within the vicinity of second sidewall portions of said tubular housing, disposed downstream of said port means as viewed in said driving direction, for engaging said shank of said fastener so as to position said head of said fastener within said forward end of said tubular housing, as viewed in said driving direction and in a substantially coaxial manner with respect to said centering pin means such that upon axial movement of said fastener relative to said centering pin means and said socket means, said convex end of said centering pin means, initially axially spaced from said concave recess of said fastener head as predetermined by said engagement of said shank of said fastener by said support means, can engage said concave recess of said fastener head so as to insuredly define said coaxial alignment of said fastener, said centering pin means and said socket means and whereupon continued axial movement of said fastener and said centering pin means relative to said socket means, said socket means is movably guided within said tubular housing, as a result of said movable engagement of said socket means within said internal peripheral surface of said tubular housing, including said forward end of said tubular housing which envelops said head of said fastener, so as to properly engage said head of said fastener so as to define said driving relationship therewith.
13. A fastener-driving tool as set forth in claim 12, wherein:
said convex end of said centering pin means has a frusto-conical surface converging toward said longitudinal axis of said centering pin means.
said convex end of said centering pin means has a frusto-conical surface converging toward said longitudinal axis of said centering pin means.
14. A fastener-driving tool as set forth in claim 12, wherein:
said convex end of said centering pin means has a plurality of substantially triangular facets converging toward said longitudinal axis of said centering pin means.
said convex end of said centering pin means has a plurality of substantially triangular facets converging toward said longitudinal axis of said centering pin means.
15. A fastener-driving tool as set forth in claim 14, wherein:
said plurality of facets comprises six facets which substantially define a pyramid having a regular hexagonal base.
said plurality of facets comprises six facets which substantially define a pyramid having a regular hexagonal base.
16. A fastener-driving tool as set forth in claim 12, further comprising:
a tubular extension fixedly connected to said socket means;
an annular rib fixedly disposed upon said centering pin means;
means disposed within said tubular extension for biasing said centering pin means toward said extended position;
and an annular retainer fixedly mounted within said tubular extension for engaging said annular rib of said centering pin means so as to prevent movement of said centering pin means to an axial position, relative to said tubular extension and said socket means, beyond said extended position.
a tubular extension fixedly connected to said socket means;
an annular rib fixedly disposed upon said centering pin means;
means disposed within said tubular extension for biasing said centering pin means toward said extended position;
and an annular retainer fixedly mounted within said tubular extension for engaging said annular rib of said centering pin means so as to prevent movement of said centering pin means to an axial position, relative to said tubular extension and said socket means, beyond said extended position.
17. A fastener-driving tool as set forth in claim 12, wherein said support means comprises:
a pair of jaw members pivotably mounted upon said tool between a first position at which said jaw members engage said shank of said fastener prior to engagement of said centering pin means within said fastener head recess and said socket means with said head of said fastener during driving of said fastener by said driving member and a second position at which said jaw members are disengaged from said shank of said fastener by said socket means during a driving operation of said fastener by said driving member.
a pair of jaw members pivotably mounted upon said tool between a first position at which said jaw members engage said shank of said fastener prior to engagement of said centering pin means within said fastener head recess and said socket means with said head of said fastener during driving of said fastener by said driving member and a second position at which said jaw members are disengaged from said shank of said fastener by said socket means during a driving operation of said fastener by said driving member.
18. A fastener-driving tool as set forth in claim 17, further comprising:
spring means interposed between said jaw members and said tool for biasing said jaw members toward said first position.
spring means interposed between said jaw members and said tool for biasing said jaw members toward said first position.
19. A fastener-driving tool as set forth in claim 12, wherein:
said socket means has a non-circular cross-section for engaging said head of said fastener which also has a non-circular cross-section so as to define said driving relationship therebetween.
said socket means has a non-circular cross-section for engaging said head of said fastener which also has a non-circular cross-section so as to define said driving relationship therebetween.
20. A fastener-driving tool as set forth in claim 19, wherein:
said non-circular cross-section of said socket means comprises a hexagon.
said non-circular cross-section of said socket means comprises a hexagon.
21. A fastener-driving tool as set forth in claim 12, wherein:
said tubular housing is elongated and operatively connected to a trigger-actuated driving mechanism so as to render said tool a stand-up screw gun.
said tubular housing is elongated and operatively connected to a trigger-actuated driving mechanism so as to render said tool a stand-up screw gun.
22. A fastener-driving tool as set forth in claim 21, wherein:
said gun comprises means for delivering screw-type fasteners to said port means and toward an axial position relative to said centering pin means so as to be engaged by said support means.
said gun comprises means for delivering screw-type fasteners to said port means and toward an axial position relative to said centering pin means so as to be engaged by said support means.
23. A fastener-driving tool as set forth in claim 22, wherein:
said means for delivering said fasteners comprises a feeding tube mounted upon said first sidewall portion of said tool and connected to said port means.
said means for delivering said fasteners comprises a feeding tube mounted upon said first sidewall portion of said tool and connected to said port means.
24. The fastener-driving tool as set forth in claim 7, wherein:
each one of said pair of jaw members includes a shoulder portion for engaging said tubular housing when said jaw members are biased toward said first position so as to define a predetermined space between said jaw members when said jaw members are disposed at said first position for accommodating said shank of said fastener and for engaging said head of said fastener so as to prevent said fastener from dropping through said predetermined space defined between said jaw members.
each one of said pair of jaw members includes a shoulder portion for engaging said tubular housing when said jaw members are biased toward said first position so as to define a predetermined space between said jaw members when said jaw members are disposed at said first position for accommodating said shank of said fastener and for engaging said head of said fastener so as to prevent said fastener from dropping through said predetermined space defined between said jaw members.
25. The fastener-driving tool as set forth in claim 1, wherein:
an upper peripheral edge portion of said head of said fastener is rounded; and a lower peripheral edge portion of said socket is chamfered so as to facilitate said engagement and alignment of said socket and said head of said fastener.
an upper peripheral edge portion of said head of said fastener is rounded; and a lower peripheral edge portion of said socket is chamfered so as to facilitate said engagement and alignment of said socket and said head of said fastener.
26. A fastener-driving tool as set forth in claim 18, wherein:
each one of said pair of jaw members includes a shoulder portion for engaging said tubular housing when said jaw members are biased toward said first position so as to define a predetermined space between said jaw members when said jaw members are disposed at said first position for accommodating said shank of said fastener and for engaging said head of said fastener so as to prevent said fastener from dropping through said predetermined space defined between said jaw members.
each one of said pair of jaw members includes a shoulder portion for engaging said tubular housing when said jaw members are biased toward said first position so as to define a predetermined space between said jaw members when said jaw members are disposed at said first position for accommodating said shank of said fastener and for engaging said head of said fastener so as to prevent said fastener from dropping through said predetermined space defined between said jaw members.
27. A fastener-driving tool as set forth in claim 12, wherein:
an upper peripheral edge portion of said head of said fastener is rounded; and a lower peripheral edge portion of said socket is chamfered so as to facilitate said engagement and alignment of said socket and said head of said fastener.
an upper peripheral edge portion of said head of said fastener is rounded; and a lower peripheral edge portion of said socket is chamfered so as to facilitate said engagement and alignment of said socket and said head of said fastener.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59212990A | 1990-10-03 | 1990-10-03 | |
| US07/592,129 | 1990-10-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2051728A1 CA2051728A1 (en) | 1992-04-04 |
| CA2051728C true CA2051728C (en) | 1996-03-19 |
Family
ID=24369408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002051728A Expired - Fee Related CA2051728C (en) | 1990-10-03 | 1991-09-18 | Fastener having recessed, non-circular head, and fastener-driving tool |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPH07103889B2 (en) |
| KR (1) | KR920007754A (en) |
| AU (1) | AU655778B2 (en) |
| BE (1) | BE1006015A3 (en) |
| CA (1) | CA2051728C (en) |
| DE (2) | DE4132504A1 (en) |
| ES (1) | ES2065789B1 (en) |
| FI (1) | FI914649A (en) |
| FR (1) | FR2668802A1 (en) |
| GB (2) | GB2250559B (en) |
| HK (1) | HK112895A (en) |
| IT (1) | IT1250503B (en) |
| MX (1) | MX9101272A (en) |
| NL (1) | NL9101661A (en) |
| NO (1) | NO913876L (en) |
| NZ (1) | NZ240017A (en) |
| SE (1) | SE9102846L (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0746431B1 (en) * | 1993-01-07 | 2003-04-02 | Henrob Limited | Improved fastening tools |
| EP0657252A1 (en) * | 1993-09-13 | 1995-06-14 | Fischerwerke Arthur Fischer GmbH & Co. KG | A fastener driving tool for driving anchorable fasteners |
| JPH08229847A (en) * | 1995-02-28 | 1996-09-10 | Max Co Ltd | Attachment for box nailing machine |
| FR2760063B1 (en) * | 1997-02-21 | 1999-05-07 | Spit Soc Prospect Inv Techn | NOZZLE OF BUFFER SEALING APPARATUS FOR FIXING ELECTRICIAN LYRE |
| US6729522B2 (en) | 2001-01-26 | 2004-05-04 | Illinois Tool Works Inc. | Fastener driving tool having improved bearing and fastener guide assemblies |
| JP2007321851A (en) * | 2006-05-31 | 2007-12-13 | Abc Trading Co Ltd | Screw, power rotary tool bit, and building design fitting constructing method |
| US8387846B2 (en) | 2009-06-08 | 2013-03-05 | Illinois Tool Works Inc | Fastening tool with blind guide work contact tip |
| DE102011002791B4 (en) * | 2011-01-17 | 2014-07-17 | Ejot Baubefestigungen Gmbh | Fastener setting unit |
| US11975424B2 (en) | 2013-03-15 | 2024-05-07 | Omg, Inc. | Multiple entry angle adaptor with locator for fastener installation tool |
| US11433511B2 (en) | 2013-03-15 | 2022-09-06 | Omg, Inc. | Dual positionable fastener installation tool adaptor |
| US10124470B2 (en) | 2013-03-15 | 2018-11-13 | Omg, Inc. | Fastener installation tool adaptor |
| KR101465538B1 (en) * | 2014-09-01 | 2014-11-26 | (주)보성테크 | automatic alignment type screw assembling device |
| CA3030973A1 (en) * | 2016-08-17 | 2018-02-22 | Omg, Inc. | Fastener installation tool adaptor |
| CN112518305A (en) * | 2020-11-25 | 2021-03-19 | 南京宇众自动化装备有限公司 | Bolt mounting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB357468A (en) * | 1931-02-10 | 1931-09-24 | Harry Frederick Atkins | Improvements in the heads of screws and bolts |
| GB360320A (en) * | 1931-03-06 | 1931-11-05 | Arthur William Pougher | Improvements in and connected with boots and shoes |
| GB442377A (en) * | 1934-07-16 | 1936-02-07 | Standard Pressed Steel Co | Improvements in socket head cap screws |
| GB513497A (en) * | 1938-04-09 | 1939-10-13 | Clyde Jay Coleman | Improvements in and relating to screws and the method of manufacturing them |
| GB962424A (en) * | 1962-12-19 | 1964-07-01 | Textron Ind Inc | Improvements in or relating to the manufacture of headed articles having internal and external torque engaging means |
| GB1032144A (en) * | 1964-03-24 | 1966-06-08 | Allen Mfg Company | Screw threaded fastener |
| US3368431A (en) * | 1966-05-12 | 1968-02-13 | Tru Tork Inc | Nut-running apparatus |
| US3750257A (en) * | 1971-12-30 | 1973-08-07 | Kaynar Mfg Co | Systematized apparatus for driving fasteners |
| FR2204242A5 (en) * | 1972-10-25 | 1974-05-17 | Martin Georges | |
| GB1452893A (en) * | 1972-11-03 | 1976-10-20 | Ellis A E H | Security nut and bolt |
| US4289049A (en) * | 1979-10-01 | 1981-09-15 | The Lamson & Sessions Co. | Bolt holding machine wrench |
| JPS57118172U (en) * | 1981-01-12 | 1982-07-22 | ||
| GB2123509B (en) * | 1982-06-25 | 1986-01-29 | Atomic Energy Authority Uk | Screw fasteners |
| GB2131113A (en) * | 1982-11-25 | 1984-06-13 | Chang Chung Hsing | Bolt driving formation |
| DE3325565A1 (en) * | 1983-07-15 | 1985-01-24 | EJOT Eberhard Jaeger GmbH & Co KG, 5928 Bad Laasphe | DEVICE FOR USE UNLOCKING SCREWS |
| DE3436204A1 (en) * | 1984-10-03 | 1986-04-03 | Eberhard Jaeger GmbH & Co KG Verbindungstechnik, 5928 Bad Laasphe | SCREW AND DRIVING TOOL HERE |
| JPH0445818Y2 (en) * | 1986-07-28 | 1992-10-28 | ||
| IT1223888B (en) * | 1988-11-07 | 1990-09-29 | Fiat Auto Spa | DEVICE FOR SCREWING A SELF-TAPPING ORGAN INTO A SMOOTH HOLE PREPARED IN A STRUCTURE INTENDED TO RECEIVE SUCH ORGAN |
| JP3044220U (en) * | 1997-05-31 | 1997-12-16 | 良樹 川戸 | Rain avoidance device for vehicle entrance and exit |
-
1991
- 1991-09-18 CA CA002051728A patent/CA2051728C/en not_active Expired - Fee Related
- 1991-09-26 MX MX9101272A patent/MX9101272A/en unknown
- 1991-09-27 GB GB9120661A patent/GB2250559B/en not_active Expired - Fee Related
- 1991-09-27 JP JP3274982A patent/JPH07103889B2/en not_active Expired - Lifetime
- 1991-09-30 DE DE4132504A patent/DE4132504A1/en not_active Withdrawn
- 1991-09-30 AU AU84890/91A patent/AU655778B2/en not_active Expired - Fee Related
- 1991-09-30 DE DE9115987U patent/DE9115987U1/en not_active Expired - Lifetime
- 1991-09-30 NZ NZ240017A patent/NZ240017A/en unknown
- 1991-10-01 IT ITTO910742A patent/IT1250503B/en active IP Right Grant
- 1991-10-02 BE BE9100906A patent/BE1006015A3/en not_active IP Right Cessation
- 1991-10-02 NO NO91913876A patent/NO913876L/en unknown
- 1991-10-02 FR FR9112128A patent/FR2668802A1/en not_active Withdrawn
- 1991-10-02 KR KR1019910017246A patent/KR920007754A/en not_active Application Discontinuation
- 1991-10-02 NL NL9101661A patent/NL9101661A/en not_active Application Discontinuation
- 1991-10-02 SE SE9102846A patent/SE9102846L/en not_active Application Discontinuation
- 1991-10-02 ES ES09102163A patent/ES2065789B1/en not_active Expired - Lifetime
- 1991-10-03 FI FI914649A patent/FI914649A/en not_active Application Discontinuation
-
1993
- 1993-06-18 GB GB9312661A patent/GB2268241A/en not_active Withdrawn
-
1995
- 1995-07-13 HK HK112895A patent/HK112895A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE4132504A1 (en) | 1992-04-09 |
| ES2065789A2 (en) | 1995-02-16 |
| ES2065789R (en) | 1995-05-16 |
| FI914649A (en) | 1992-04-04 |
| GB2250559A (en) | 1992-06-10 |
| SE9102846L (en) | 1992-04-04 |
| NL9101661A (en) | 1992-05-06 |
| HK112895A (en) | 1995-07-21 |
| BE1006015A3 (en) | 1994-04-19 |
| FI914649A0 (en) | 1991-10-03 |
| IT1250503B (en) | 1995-04-08 |
| AU655778B2 (en) | 1995-01-12 |
| CA2051728A1 (en) | 1992-04-04 |
| JPH05118312A (en) | 1993-05-14 |
| FR2668802A1 (en) | 1992-05-07 |
| MX9101272A (en) | 1992-06-05 |
| NO913876L (en) | 1992-04-06 |
| AU8489091A (en) | 1992-04-09 |
| ITTO910742A1 (en) | 1992-04-04 |
| NO913876D0 (en) | 1991-10-02 |
| SE9102846D0 (en) | 1991-10-02 |
| GB2268241A (en) | 1994-01-05 |
| DE9115987U1 (en) | 1992-03-05 |
| KR920007754A (en) | 1992-05-27 |
| NZ240017A (en) | 1994-06-27 |
| GB9120661D0 (en) | 1991-11-06 |
| ES2065789B1 (en) | 1997-02-01 |
| GB2250559B (en) | 1995-03-08 |
| ITTO910742A0 (en) | 1991-10-01 |
| GB9312661D0 (en) | 1993-08-04 |
| JPH07103889B2 (en) | 1995-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |