GB2282346A

GB2282346A - Collapsible saw

Info

Publication number: GB2282346A
Application number: GB9320292A
Authority: GB
Inventors: Ian Clifford Swift
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-01
Filing date: 1993-10-01
Publication date: 1995-04-05
Also published as: GB9320292D0

Abstract

The saw has a main supporting rod (4) that together with two vertical tubular handles (1) provide a basic guide frame. The tubes are located in holes in the two vertical tubular handles. A threaded rod (2) is inserted to the holes provided in the vertical tubes, to pass the length of the horizontal main supporting rod (4), providing a protruding thread to one side of a vertical tube. A bolt is secured to the corresponding end of the threaded rod (2), not being fully tightened until a blade (5) has been inserted, to form the complete saw. This may be dissembled with the vertical tubes forming a housing for the other remaining parts, with the bolt (3) and rod retainer (9) providing closed ends to the housing tube when tightened. <IMAGE>

Description

Title - The Pack Saw This invention relates to a hand tool in the form of a saw that has a single cutting blade, and is able to be assembled for use and subsequently dismantled afterwards.

A common problem relating to outdoor activities, including forms of camping and basic survival pursuits, is the need to provide a tool that is able to be carried easily with little weight or any further obstruction to the individual transporting the equipment.

This is very important to the individual, as space inside the 'back pack' or 'equipment holdall', is very restricted. This is to ensure an easier and more comfortable journey to various locations.

Therefore all equipment is designed to be as weightless and also as compact as possible, to enable more equipment to be carried at any one time, with less effort. The need to cut wood from its natural position in the wild, and provide a fire is one of great importance to any person hoping to survive in a domestically, or circumstantially derived, survival situation.

The problem with known saws of various types, in this situation would be their size, for reasons previously accounted. The blade may also become damaged in transit or by weathering, remaining an impractical solution to this situation. Saws are already knowr but are unable to provide a compact tool that is able to provide adequate means for easier transportation and performance.

The present invention seeks to provide an improved type of saw that is designed, but not exclusively for outdoor survival and related pursuits. The tool may also be used in situations that are more domestic, for household or commercial use, offering the same previously accounted improvements.

According to the present invention there is provided a series of tubes, being hollow throughout or partly solid in form. These form a single larger tube when correctly dissembled, for storage or transportation. All fittings that are necessary for the full and complete construction of the saw once assembled, are housed within the main tube, this being formed out of several main parts of the saw, with means being provided for the packaged, self contained tool, to be secured as a single storable object by the tightening of a threaded securing bolt. This may be quickly made to form a practical saw, of any useable size, by correct arrange -ment of the separate parts that once formed the stored tube.

This may be used in a large variation of ways, for the convenient sawing of wood or related materials, and may be stored in a self containing manner with all relevant parts being included in the finally formed storage tube.

An embodiment of the invention will now be described in detail, by way of example only and with reference to the accompanying two figures, which are diagramatic sectional views of the Pack Saw.

The Pack Saw is generally designated 1 when in storage form, as shown in Fig 2. On assembly to form a tool the securing bolt 3 is removed by anticlockwise rotation of itself, releasing from the corresponding thread 8, this being part of the threaded rod 2 as shown in Fig 1. Following removal of the securing bolt 3, the threaded rod 2 may be removed from its housing of the handle tube 1, as shown housed in Fig 2. Full extraction of the threaded rod 2 will enable the two handle tubes 1 to be separated, exposing a remainder of parts necessary to form a tool. These are the blade 5 and the main supporting rod 4, as shown in fig 1 & 2. The parts are now separated and assembly may begin. The saw may assemble in a variation of ways, i.e. introducing differing parts in various order. For a more favourable construction of the saw the handle tube 1 may be held while the main supporting rod 4 is inserted to the corresponding hole provided in the handle tube 1, as shown in fig 1. This action may be repeated using the second handle tube 1 as shown in Fig 1. This may be connected thus, starting with either handle tube 1. Above the entrance holes provided for the main supporting rod 4, on the body of the handle tube 1, are two smaller holes passing through the entirety of the hollow of the handle tubes 1. Providing that the main supporting rod 4, is correctly inserted to the hole of the handle tubes 1, on either side, the smaller holes shown on Fig 1 adjacent to the securing bolt 3, will be in line. This will provide a guided insertion for the threaded rod 2. This is inserted from either side of the handle tube, through the first two holes passing inside the full hollow of either handle tube 1 to repeat the insertion at the opposite end of the partially formed saw. At this stage the saw is not complete, and remains unstable. To complete the formation the securing bolt 3 is placed to the tip of the corresponding thread 8 of the threaded rod 2, as shown in Fig 1. Carefully the securing bolts thread (not shown) may be wound to connect with that of the corresponding thread 8. This preferably should only be wound slightly, to allow the blade 5 to be correctly inserted to either blade inlet 6, provided on a side of the handle tube 1, both of these inlets will be facing on an inward direction, as shown in Fig 1, once the blade 5 is fully inserted, with both of the blade retainers 7 situated as shown in Fig 1 to the inside of the handle tube 1, the securing bolt 3 may be tightened to fully amend the loose structure of the frame, offering a solid working saw. Reversal of this process will allow the saw to be packed as shown in fig 2. The handle tube 1 is held, while the main rod 4 is inserted to the inside of the end to end tubes. The threaded rod 2 is then inserted completely through the hollow of the main rod 4, to appear at the other open side of the handle tube 1. The blade is then inserted and the securing bolt 3 tightened to form a storage tube, incorporating all relevant parts. The handle tube 1 may be of 'necked' tubing as shown as 'a' this will allow a solid variation of the closed unit as shown in Fig 2. The shapes of tubing may vary, including the securing bolt as shown in fig 2.

Claims

CLAIMS 1) A self containable pack saw, has a main supporting rod inserted to holes provided in two handle tubes. These offer a guide frame for the insertion of a threaded rod and its securing bolt. A blade is inserted to inlets situated as slots to the face of the handle tubes, and upon tightening of the securing end form a constructed tubular saw. 2) A self containable pack saw, as claimed in claim 1, wherein a supporting rod is inserted through the holes provided in two vertical tubular handle tubes, to form a basic three part frame. 3) A self containable pack saw, as claimed in claim 2, wherein the supporting rod is inserted through the holes provided in two vertical tubular handle tubes, above which are situated two holes that pass through the hollow of the handle tube. 4) A self containable pack saw, as claimed in claim 3, wherein the handle tubes have two holes situated to each, that pass in through the hollow of the handle tube, and in which the threaded rod is inserted the full length of the partially constructed saw. 5) A self containable pack saw, as claimed in claim 4, wherein the threaded tube is inserted through holes provided, to pass the full length of the partially constructed saw, with a threaded end protruding from one side of a handle tube, when fully inserted. 6) A self containable pack saw, as claimed in claim 5, wherein the threaded end protruding from one side of the handle tube, is fitted with a securing bolt that is to be partially tightened. 7) A self containable pack saw, as claimed in claim 6, wherein the threaded protruding end of the threaded rod, is fitted with a securing bolt that is to be partially tightened, to enable the blade to be freely inserted, to inlet slots provided on the outer face of the handle tube. 8) A self containable pack saw as claimed in all previous claims forms a practical tool when assembled, and can be packed into a tube form, for storage, using its own parts already used to form the frame of the saw itself. Amendments to the claims have been filed as follows

1) A Tubular self containable saw, which houses all assembly portions inside a main cylindrical body formed outwardly of equally lengthened twin tubes, has a single supporting rod that is inserted to equally positioned holes provided in said tubed handles. Upon being loosely assembled these offer, a guide frame for insertion of a single threaded rod with the portions being secured as a whole figuration, using a single corresponding end, following a blade being positioned in provided grooves.

2) A Tubular self containable saw, as claimed in claim 1, wherein portions of tubing that form the saw and an attachable cutting blade, are housed in a single entclosed tube, when in storage.

3) A Tubular self containable saw, as claimed in claim 2, has a single enclosed tube housing, in which dissembled portions of the saw are housed, which is comprised of two releasably joined handles, being dissembled portions also.

4) A Tubular self containable saw, as claimed in claim 3, wherein handles used in the symmetrically assembled saw, form a tubed housing secured by a threaded rod and securing end, for all remaining parts before assembly.

5) A Tubular self containable saw, as claimed in claim 4, has a single threaded rod that passes through the releasably connected housing tubes to secure them with a tightened end.

6) A Tubular self containable saw, as claimed in claim 5, wherein a tightened end is threaded to secure and enclose the releasably connected handles to form a rigid, visibly single housing.

7) A Tubular self containable saw, as claimed in claim 1 & 6, has two tubed handles, that when separated from their position as a housing, are used as handles for a saw.

8) A Tubular self containable saw, as claimed in claim 1 & 7 has two handles that have symmetrical holes for the insertion of a main supporting rod.

9) A Tubular self containable saw, as claimed in claim 1 & 8 has a main supporting rod that is inserted through vertically positioned handles, being secured by a threaded rod and securing end.

10) A Tubular self containable saw, as claimed in claim 1 & 9 has a threaded rod that is inserted through the vertically positioned handles parallel with the main supporting rod,

11) A Tubular self containable saw, as claimed in claim 10, wherein a threaded rod and threaded end which are inserted to secure and complete the assembled saw, are also used to secure and enclose the housed positions of the saw, prior to