HOLLOW SHANK POWER NUT DRIVERS

Abstract

A hollow shank power nut driver axially drives nuts over uninterrupted elongated threaded rods. The hollow shank permits the nut to be driven down a long threaded rod to the limit of this shank. This hollow shank is of sufficient diameter to accommodate the threaded shaft that fits the socket.

Claims

1. A method of bolting down framing on a concrete foundation of a building consisting essentially of the steps of: in a construction site, providing a concrete footing with a distal end of a threaded J-bolt embedded therein and a wood frame base plate mounted on said concrete footing through which said threaded J-bolt passes upwardly therethrough; selecting a driver from a set of drivers each comprising an uninterrupted elongated hollow shaft of a different length with a closed proximate end with a long reach for accessing tight locations where said threaded J-bolt leaves said wood frame base plate and where wrenches and hands can't go, said uninterrupted elongated hollow shaft being in excess of three inches in length; selecting said selected driver having an enlarged hollow drive shank mounted on and integral with said closed proximate end having a permanently built-in axially aligned integral collet drive adapter associated therewith, said selected driver further having an open distal end and a hollow one piece socket integrally mounted on said open distal end of each said hollow shaft, of said selected driver; said selected driver having a smooth, continuous, uninterrupted portion between said collet drive adapter at said closed proximate end and said hollow one piece socket integrally mounted thereon; said selected driver selected for having a length sufficient to completely enclose said J-bolt extending out of said base plate, said driver in effect comprising a one part device with no attachments to fall off; selecting and seating a single nut in said socket and engaging said threaded J-bolt from a free end thereof and threading said nut for a full length of said J-bolt where long thread rods are a design necessity down to where said nut is tightened on said base plate, whereby there being no limitation on nut travel; wherein said hollow shaft is adapted to receive therewithin said extended J-bolt, and wherein said J-bolt extends into said hollow shaft and through said single nut, said J-bolt threadable through said single nut along a length thereof, and wherein a proximal end of said extended J-bolt within said hollow shaft is spaced apart from said closed proximal end of said hollow shaft; and in a single tightening step, using a power tool adaptable to said collet drive adapter, driving said drive shank to deliver full applied torque with no slippage through said hollow one piece integrally mounted socket at said distal end to said single nut; and tightening down said single nut on said threaded J-bolt in said single tightening step without stopping to separately tighten any other further nut to said threaded J-bolt.

2. A method of bolting down framing on a concrete foundation of a building comprising the steps of: in a construction site, providing a concrete footing with a curved end of a threaded J-bolt embedded therein and extending upwardly through a wood frame base plate mounted on said concrete footing and having a free length above said base plate terminating in a free end above said base plate, said J-bolt threaded up to said free end; selecting a driver comprising an uninterrupted elongated hollow shaft of sufficient length to fully enclose said length of said J-bolt, said driver having a closed proximate end with a drive shank mounted on and integral with said closed proximate end, said drive shank having a permanently built-in axially aligned integral collet drive adapter associated therewith and an open distal end with a hollow one piece socket integrally mounted on said open distal end; said selected driver having a smooth, continuous, uninterrupted portion between said drive shank at said closed proximate end and said hollow one piece socket integrally mounted thereon; said uninterrupted elongated hollow shaft being in excess of three inches in length; selecting a nut to engage said threaded J-bolt; seating said nut in said socket; wherein said hollow shaft is adapted to receive therewithin said extended J-bolt, and wherein said J-bolt extends into said hollow shaft and through said single nut, said J-bolt threadable through said single nut along a length thereof, and wherein a proximal end of said extended J-bolt within said hollow shaft is spaced apart from said closed proximal end of said hollow shaft, whereby there being no limit on nut travel; in a single tightening step, using a power tool adaptable to said collet drive adapter, driving said drive shank to deliver full applied torque with no slippage through said hollow one piece integrally mounted socket at said distal end to said single nut; and tightening down said single nut on said threaded J-bolt in said single tightening step without stopping to separately tighten any other further nut to said threaded J-bolt; and, using said driver to thread said nut on said free end of said J-bolt over the full free length thereof where long thread rods are a design necessity all the way down to said base plate and tightening said nut on said J-bolt against said base plate.

3. The method of claim 2 in which a power tool is used to engage said drive shank to deliver full applied torque with no slippage through said hollow one piece integrally mounted socket to said nut, said power tool having a chuck engaged with said collet drive adapter.

4. The method of claim 3 in which said driver is selected from a set of drivers of differing lengths to match any free length of a J-bolt to be tightened in place.

5. A method of bolting down a nut upon a threaded rod comprising the steps of: providing a threaded rod extending outwardly from a base surface and having a free length above said base surface and terminating in a free end above said base surface, selecting a driver comprising an uninterrupted elongated hollow shaft of sufficient length to fully enclose said length of said threaded rod, said driver having a closed proximate end with a drive shank mounted on and integral with said closed proximate end, said drive shank having a permanently built-in axially aligned integral collet drive adapter associated therewith and an open distal end with a hollow one piece socket integrally mounted on said open distal end; said uninterrupted elongated hollow shaft being in excess of three inches in length; said selected driver having a smooth, continuous, uninterrupted portion between said drive shank at said closed proximate end and said hollow one piece socket integrally mounted thereon; selecting a nut to engage said threaded rod; seating said nut in said socket; wherein said hollow shaft is adapted to receive therewithin said extended threaded rod, and wherein said threaded rod extends into said hollow shaft and through said single nut, said threaded rod threadable through said single nut along a length thereof, and wherein a proximal end of said extended threaded rod within said hollow shaft is spaced apart from said closed proximal end of said hollow shaft, whereby there being no limit on nut travel; further wherein a power tool is used to engage said drive shank to deliver full applied torque with no slippage through said hollow one piece integrally mounted socket to said nut, said power tool having a chuck engaged with said drive shank, in a single tightening step, using said power tool adaptable to said collet drive adapter, driving said drive shank to deliver full applied torque with no slippage through said hollow one piece integrally mounted socket at said distal end to said single nut; and tightening down said single nut on said threaded rod in said single tightening step without stopping to separately tighten any other further nut to said threaded rod; and, using said driver to thread said nut on said free end of said threaded rod over the full free length thereof where long thread rods are a design necessity all the way down to said base surface and tightening said nut on said threaded rod against said base surface.

6. The method of claim 5 in which said driver is selected from a set of drivers of differing lengths to match any free length of a threaded rod.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention can best be understood in connection with the accompanying drawings. It is noted that the invention is not limited to the precise embodiments shown in drawings, in which:

[0028] FIG. 1 is a side elevation view of a power drill driver engaged with a power drive hollow shank nut driver of this invention.

[0029] FIG. 2 is a side elevation view of nut driver of this invention with the hollow shank and drive socket at the distal end shown in crossection to reveal the end of a threaded rod within.

[0030] FIG. 3 is a side elevation view of a family of three nut drivers of this invention of the same diameter but with three different lengths.

[0031] FIG. 4 is a dimensioned side elevation view of a medium length hollow shank power nut driver.

[0032] FIG. 5 is a dimensioned end view of ono example of the nut driver of FIG. 4.

[0033] FIG. 6 is a perspective view of an alternate embodiment hollow shank power nut driver using interchangeable sockets with spring clip retention.

[0034] FIG. 7 is a set of side, top, and bottom elevations of a large socket and a small socket using the same top engagement collar.

[0035] FIG. 8 is a side elevation of an end detail in partial crossection showing an alternate socket retention mechanism using metal balls for socket retention.

[0036] FIG. 9 is a perspective view of a spring collar and two balls used in the method of FIG. 8.

[0037] FIGS. 10A and 10B are side and front views of an embodiment with a ¾ inch socket on a hollow shank, showing a ¾ inch hex shank adaptable to a power driver.

[0038] FIG. 11 is a side elevation view of a hollow shank power nut driver with a ¾ inch socket, hollow shank and ¼ inch removable collet to socket adapter.

[0039] FIGS. 12A, 12B, 13A, 13B, 14A, 14B, 15A and 15B are side and front elevation views of alternate embodiments for hollow shank power nut drivers.

[0040] FIG. 16 is an exploded perspective showing use of the hollow shank power nut driver of the present invention in use at a construction site with a 2″×6″ wood frame plate board attached to a typical concrete footing by a J-bolt embedded within the concrete footing.

[0041] FIG. 17 is a side elevation view of a 15/16 inch socket with an adapter for a ¾ inch tool, with a center bored out to 0.65 inch, to accommodate a rod.

DETAILED DESCRIPTION OF THE INVENTION

[0042] FIG. 1 shows power drill driver 4 with hollow shaft nut driver 10 of this invention engaged in chuck 5. Hollow shaft 11 with integral socket 12 and threaded rod 1 are also illustrated. As shown in FIGS. 1 and 2, the power driven hollow shank nut driver 10 includes an elongated hollow shaft 11 having proximate and distal ends; a socket 12 mounted on the distal end of the hollow shaft 11, wherein a nut 2 is seated in the socket 12. The extended threaded rod 1 the hollow shaft 11 extends out of the hollow shaft through the nut 2. A proximal end of the extended rod 1, when located within the hollow shaft 11, is spaced apart from the proximal end of the hollow shaft 11. For use, a drive shank 13 is mounted on the proximal end of the hollow shaft 11; and is driven by a powered source of drive for the drive shank. The nut driver 10's powered source can be chuck 5 engaged with the drive shank, wherein further a power drill driver engages with the chuck 5.

[0043] FIG. 2 also shows the collet drive shank 13 attached to the top end of the hollow shaft 11 with empty space 14 in front of threaded rod 1's free end. Nut 2 is shown engaged within socket 12.

[0044] FIG. 3 shows a family of three hollow shank nut drivers 10 of different lengths from longest 15 to midsize 16 to shortest 17. Generally, as shown in FIG. 3, the hollow shaft can be one of a set of any number of hollow shafts of different lengths.

[0045] FIG. 4 is a dimensioned side elevation of a midsized hollow shank nut driver for a typical ⅜″ ‘redi rod’ using a 9/16″ sized socket.

[0046] The dimensioned top end view is shown in FIG. 5.

[0047] FIGS. 6-9 detail an alternate embodiment 19 of power driven hollow shaft nut drivers using interchangeable sockets to accommodate different sizes of threaded rod or fasteners.

[0048] For example, the nut driver's socket 12 can optionally be integral with the distal end of the hollow shaft.

[0049] In FIG. 6, hollow shank 20 is formed into a hexagon 21 at its distal end. Socket 23 has a top collar 25 with a recess which fits over end 21. Socket section 26 accommodates a nut or fastener head which fits open end 24. Groove near the top edge of standard collar 25 retains socket 23 onto shank 20 by the action of three spring clips 22 distributed around distal end 21.

[0050] FIG. 7 contrasts side, top, and bottom views of two different sized sockets 23 from the same family having a common style and sized top collar 25. Note the large through hole 28 at the center of the larger socket on the left. The smaller socket on the right has a smaller bottom hex opening 24 to accommodate a smaller nut or fastener head. Even though the top collar 25 is the same, and the hex top recess is the same as for the larger socket, the through hole in the center 28 is necessarily smaller, however it still provides clearance for the compatible threaded rod.

[0051] FIGS. 6 and 7 also show that the socket can include a collar removably mounted on the distal end of the hollow shaft. There can also be a socket shaped recess 21 which is formed in the collar, so that the nut is seated in the socket shaped recess. The collar can optionally be interchangeable with at least one other collar having a differently size socket shaped recess for accommodating a differently size nut.

[0052] Also, optionally the distal end of the hollow shaft can have spring clips for retaining the collar on the distal end of the hollow shaft, as shown in FIG. 6.

[0053] FIG. 8 is a side view detail of an alternate socket retention method using shank 20 attached collar 30 which forms an annular space sized to accept the OD of collar 25. Two balls 31 are shown forced within the top collar groove by outer spring band 32. Therefore, FIG. 8 shows the attaching member collar 30 mounted on the distal end of the hollow shaft, wherein there is formed an annular space to receive the collar, with the spring mounted ball bearings being employed to hold the collar in place on the hollow shaft.

[0054] FIG. 9 shows a better view of spring band 32 with locating holes 33 for balls 31.

[0055] FIGS. 10A and 10B are side and front views of an embodiment with a ¾ inch socket on a hollow shank, showing a ¾ inch hex shank adaptable to a power driver. In FIG. 10A, the ‘external’ ¾″ hex drive is on the drive end of the shank. This feature allows the tradesman to use another wrench or socket to drive the hollow shank power nut driver of the present invention via a ‘crescent wrench, an open or hex end wrench, a socket and ratchet or even water pump pliers or a pipe wrench. The latter two are sometimes all a tradesman has. This type of drive might be necessary because the drill battery had gone dead or the drill was too small to apply sufficient torque for these larger applications. This model of the hollow shank power nut driver could even be driven by another ¾″ hollow shank power nut driver. It would permit a tradesman to stack them, so to speak, and create a very long tool to reach into tight places or possibly high over head. It adds an extra measure of versatility.

[0056] FIG. 11 is a side elevation view of a hollow shank power nut driver with a ¾ inch socket, hollow shank and ¼ inch removable collet to socket adapter.

[0057] FIGS. 12A, 12B, 13A, 13B, 14A, 14B, 15A and 15B are side and front elevation views of alternate embodiments for hollow shank power nut drivers. In FIG. 12A a ¼ inch collet drive is integrally attached to the hollow shank. In FIG. 13A the socket adapter drive is insertably removable to and from the hollow shank. In FIG. 14A a ⅜ inch hex drive is provided integral with the hollow shank. In FIG. 15A a removable replaceable ¼ inch drive is held in place by a small roll pin.

[0058] FIG. 16 is an exploded perspective showing use of the hollow shank power nut driver of the present invention in use at a construction site with a single 2″×6″ wood frame plate board attached to a typical concrete footing by a J-bolt embedded within the concrete footing. FIG. 16 illustrates the bottom wood sill plate that is typical in a wood frame construction application where the framing is bolted down to the concrete foundation. The bottom wood frame base plate is normally one 2×6 thick. The concrete footing is typically an inverted T-shape in crossection, with the smaller upwardly extending portion dimensioned to accept and support the 2″×6″ wood frame plate board. Large versions can be used in carpentry and construction for larger versions (¾″ and 15/16″). These would be used for fastening “J bolts” (anchor bolts) that hold framing base plates to the concrete footings. Essentially, these tools would be used ‘upside’ down as opposed to the 9/16″ which often is used overhead on rods protruding from the ceiling. For example, FIG. 16 shows a distal end of the hollow shaft being embedded in a construction member for engaging the threaded rod, and the threaded rod is attachable at a distal end thereof to a footing within the construction member. This application of the present invention permits the contractor to easier set the anchor bolts in the concrete. More thread can be exposed since the shank accommodates it and they are not fastening the nuts with a crescent or hand wrench.

[0059] FIG. 17 is a side elevation view of a ¾ inch socket with an adapter for a 15/16 inch tool and nut, with a center bored out to 0.650 inch, to accommodate a rod. This hollow shank power nut driver may have a replaceable drive mechanism, a “flat” near the drive end to accommodate a crescent wrench, optional magnet, and an adapter for multiple nut size capability. It is repairable and is subject to much higher torque loads than other versions.

[0060] In the foregoing description, certain terms and visual depictions are used to illustrate the preferred embodiment. However, no unnecessary limitations are to be construed by the terms used or illustrations depicted, beyond what is shown in the prior art, since the terms and illustrations are exemplary only, and are not meant to limit the scope of the present invention.

[0061] It is further known that other modifications may be made to the present invention, without departing the scope of the invention.