A preferred embodiment of the invention will be described, by way of example, with reference to the accompanying drawings, in which:
With reference to
The tool body 10 may be formed as a slight U-shape in cross-section. This enables the thickness of the tool body to be reduced while maintaining structural integrity and strength.
The tool body 12 has an upper surface 14 and a lower surface 16. The surfaces 14 and 16 are generally flat and parallel with respect to one another. A handle 18 is connected to the surface 14 and is offset from longitudinal centre line C of the tool body 10 so that two identical tools can be stacked back to back with their handles 18 beside one another to minimise the amount of space occupied by two such tools when packaged together for shipment from one place to another. The location of the handle 18 on one side of the centre line C also ensures that there is sufficient room for a nail gun to be used with the tool, as will be described in more detail hereinafter, and that if a workman is holding the tool by the handle, the workman's hand is well away from the nail gun and there is clear space for the nail gun to move along the tool.
The tool body 10 has a front edge 20. The tool 10 may also include a removable plate 22 which can be connected to the front edge 20 by screws 24. In an alternative embodiment, the removable plate 22 can be connected to the tool body 10 by clamps (not shown) or any other suitable releasable fastener. The purpose of the removable plate 22 will be described hereinafter.
The lower surface 16 of the tool body 12 has a plurality of spacer elements 25 extending away from the surface 16. The spacer elements 25 are best shown in
As is best shown in
As is best shown in
As is apparent from
The spacer elements 25 are preferably in the form of plates, as is best shown in the side view of
In other embodiments, the spacer elements could be in the form of pins or the like which may make it easier for the pins to locate between decking boards when the tool is used. The pins will preferably have a flattened or gently curved free end similar to that shown in
If the tool 10 is to be used with decking boards which have a different width such as 70 mm, then the elements 25 are spaced apart by a distance D of 70.5 mm. Thus, two different tools can be provided for use with the two different board widths. However, in a still further embodiment, the tool body 10 can be provided with releasable spacer elements 25 and locator points for locating the spacer elements 25 at separation distances of 90.5 mm or 70.5 mm so that a single tool can be modified for use with decking boards of thickness 90 mm or 70 mm as the case may be.
As is apparent from
In the preferred embodiment of the invention, the length of the end teeth 25′ are approximately 30 mm and the length of the other teeth are about 15 mm. However, once again, these dimensions could be varied depending on the application to which the tool is to be put.
As is apparent from a consideration of
Thus, when the tool is in use, at least some of the spacer elements 25 contact the joist, and thereby locate the front edge 20 of the tool body over the joist to form the guide for the nail gun. In the preferred embodiment of the invention, only the longer spacer elements 25′ extend down beneath the decking boards and abut the side of the joist. However, in other embodiments, additional ones, or all of the spacer elements 25, could contact the side of the joist to position the tool and therefore the front edge 20 at the desired place over the joist.
Thus, the front edge 20 is located slightly towards the side of the joist from the midpoint of the joist by a distance of about 5 mm. This distance accommodates the thickness of the nail gun, so that if the nail gun is placed adjacent the edge 22, the nails are located at the midpoint of the joist so that when the nails are punched into the boards and the joist, the nails form a straight line at the midpoint of the joist.
If the tool is to be used with a joist of 45 mm thickness, the removable plate 22 is secured in position. The plate 22 has a thickness of about 5 mm and therefore the edge of the tool body which, in this arrangement, is formed by the edge 22′ of the plate 22 is spaced a distance of 15 mm from the leading edges 35 of the spacer elements 25. Thus, again this provides spacing for the nail gun so a straight line of nails is formed at the midpoint of the joist.
In a still further embodiment, if the tool is to be used by a handyman who intends to form the deck by using a hammer and nails rather than a nail gun, a removable plate 20 having a thickness of 12.5 mm can be provided. This will locate the edge 22 at the midpoint of a 35 mm joist so that the nails can be located against the edge 22 and hammered through the boards and into the joist to thereby form a straight line of nails at the centre line of the joist.
In still further embodiments, the tool can be supplied with a number of different sized removable plates so that an appropriate removable plate can be attached to suit the size of the joist, and also whether the fasteners are being attached by way of a nail gun, hammer or other suitable tool.
Whilst the tool of the preferred embodiment has seven spacer elements 25 defining six spaces for receiving decking boards, the number of elements, and therefore the number of decking boards which can be accommodated by the tool is arbitrary and could be more or less than six. For example, in some applications, the tool could accommodate two or three boards and in others, 10 to 15 or even more boards.
The decking is formed by laying decking boards 100 on joists 200. The joists 200 are supported by bearers (not shown) which in turn are supported along posts (not shown). The decking boards 100 are cut to length as usual, so that rows of decking boards are formed, and with the joins between decking boards of the same row being staggered with respect to the joins of decking boards in an adjacent row. The first decking board 100′ is aligned using a string line or other datum and is nailed in place in the conventional way so as to provide a starting reference point. The remaining decking boards 100 are then laid out as shown in
The tool 10 is then removed and replaced adjacent the next joist 200′, as shown by reference 10′ in
Because the tool automatically spaces the boards, thereby avoiding the need for individual spacing by hand, and also forms a datum guide for the nail gun, a considerable amount of time is saved in securing the decking boards 100 to the joists 200. Thus, the time taken to complete the decking is greatly reduced.
When the tool 10 is in place, the tool can be released, thereby enabling the workman to have two free hands for operating the nail gun or a hammer and nail in order to attach the decking boards 100 to the joists 200.
In other embodiments of the invention, rather than provide, a relatively small handle 18, or as well as the small handle 18, a large extension handle can be used so that the tool 10 can be manipulated into place from a standing position, rather than having to kneel or bend over.
Tool body 12 is formed from metal having a generally square U-shaped cross-section so that it includes a base 12a and upstanding side edges 12b. A handle 18 is provided as in the earlier embodiments.
The base 12a of the tool body 12 includes an elongate opening 300 which is comprised of a first slot 301, a second slot 302, and a third slot 303. As best shown in
As is best shown in
The member 310 comprises a bar 312 having the spacers 25 and is provided with holes 311 which correspond in position with the stems 305.
The elements 25, as in the earlier embodiments, are spaced apart by a predetermined distance corresponding to the width of the decking board which is to be laid. Furthermore, the spacer elements 25 have a width or thickness which corresponds to the desired spacing between boards, such as for example, 5 mm.
A number of different spacer members 310 are intended to be provided, each having spacer elements 25 which are spaced apart by different distances to correspond with different width decking boards which may be used, and also may also have spacer elements 25 of different thicknesses to provide different spacings between the laid decking boards.
When it is desired to attach one of the spacer members 310 to the tool body 12, the wing nuts 306 are removed from the screw threaded stems 305 and the spacer member 310 is located in place by inverting it with respect to the position shown in
As is best shown in
Similarly, the spacer elements may be connected to the bar body 312 by providing holes 317 in the bar body 12, and locating the spacer elements 25 through the holes and welding them in place. As is shown in
The spacer elements 25 are completed by side surfaces 321 which are at the free end of the spacer elements 25 which taper together towards a blunt point 323. The tapering surfaces 321 facilitate insertion of the spacer elements between spacer boards 100 until the side edges 320 locate between the boards to properly space the boards by the distance between the side surfaces 320 (which may, for example, be 5 mm). The blunt point 323 is provided so that sharp points are not provided which may have the potential to cause injury.
The spacer elements are also provided with front and rear surfaces 324 which extend all the way from the bar body 312 to the blunt point 323 and which are parallel. One of the edges 324 will abut the joist 200 so that one of the edges 12b (the right hand edge in
Thus, in the embodiment of
The tools of the preferred embodiments therefore have the advantage that they enable decking boards to be laid more quickly because a number of decking boards can be laid and spaced at the one time rather than to have to individually move a spacer element between adjacent decking boards each time a decking board is secured. Furthermore, since the tool spaces a number of the decking boards, once a tool is in place, it can be released and the workman has two free hands with which to work. This therefore adds to the safety of the operation and prevents the likelihood of a user having to locate one hand in close proximity to a nail gun. Furthermore, the handle being spaced away from where the nail gun would locate also improves safety. The edge 20 of the tools provides a guide to enable a straight line of nails or other fasteners to be located in place to secure the decking boards 100 to the joists 200. Furthermore, since the spacing provided by the elements 25 is always the same, the boards will always be laid in a square fashion. This therefore ensures that the last board laid is in fact square with the first board laid, and reduces the need to continuously measure and square the decking during the formation of the decking. This further decreases the time taken to build the decking.
In the claims which follow and in the preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word “comprise”, or variations such as “comprises” or “comprising”, is used in an inclusive sense, ie. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.
Since modifications within the spirit and scope of the invention may readily be effected by persons skilled within the art, it is to be understood that this invention is not limited to the particular embodiment described by way of example hereinabove.
Number | Date | Country | Kind |
---|---|---|---|
2003906239 | Nov 2003 | AU | national |
2004904030 | Jul 2004 | AU | national |
This application claims priority from Australian Provisional Application 2003906239 filed 13 Nov. 2003, U.S. Provisional Application 60/527,805 filed 8 Dec. 2003, and Australian Provisional Application 2004904030 filed 21 Jul. 2004.
Filing Document | Filing Date | Country | Kind | 371c Date |
---|---|---|---|---|
PCT/AU04/01528 | 11/4/2004 | WO | 00 | 5/12/2006 |
Number | Date | Country | |
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60527805 | Dec 2003 | US |