AU4450099A - Mobil work station - Google Patents

Description

MOBILE RIPSAW WORKBENCH

DESCRIPTION

Introductio The mobile work station (MWS) is a rectangular enclosed trolley with wheels and handles. The MWS has a bench top which can house three power tools at a given time, a 9 inch circular saw and two of the following tools, a planer, router and jigsaw. A central power board is located on the MWS and it has a storage area for equipment and hardware.

The mobile work station (MWS) was designed to increase production (time and effort) and improve the quality of work in the building industry, principally the kitchen installation process.

Working as a kitchen installer, cabinet maker/joiner on multi storey building sites I realised the need for a mobile toolbox to be able to transport all tools and equipment in a single trip car to site, floor to floor, room to room). This would also overcome the problem of leaving tools unattended as it averts the :need of dropping off tools and finding a parking space and moving tools from .:.job to job in numerous trips. Please refer to attachment 1 for a list of the tools I required to take to a site in a box involving up to three trips.

I also realised the need to have a work bench which can house power tools underneath a bench (ripsaw, planner, router, jigsaw) creating precision *:machine cuts and bench space for other carpentry work. The MWS caters for both the need of a mobile toolbox and a work bench in the one unit as well as **:*having an electrically safe power supply board residue overload cut-out switch, start! stop station).

The MWS is like a eight in one unit in that it provides a compact trnsprtble wrk benchi that houses a circular saw, mipuLer. jig.saw,~ planner laminate t: rimmer and tolbox..making. It is one man operated, easier to lift, balanced and moves equipment to and from jobs simply in a single trip. This overcomes current problems with other workbenches which do not lend themselves to be moved simply, being large and bulky and having to be dissembled to be moved and reassembled on site or tables that house power tools usually one power tool per table and again either to big, bulky and awkward or to small and very limited in the size of material that can be milled.

The MWS's external dimensions and design allows it to be transported in station wagon, van or ute, and allows it to be manoeuvrable around passage ways, door ways and stairwells.

The MWS's workbench provides for a more efficient, safer and precise approach than current practices used in the installation of kitchens.

An extendible bench top on the MWS gives a large enough surface area to measure, cut and work with material with ease ie. supporting cabinets to be cut down, bench tops to be cut or mason mitre, refrigerator panels to be cut and planned to length and width, and kick boards to be cut at desired height and length. The bench height is set so as all cutting planning drilling etc is easily visible from overhead view and comfortably safe in the action of method of cutting, drilling, routering, planning etc. Where as the current practice is to carry out work on milk crates, kitchen cabinets or even on the floor, being impractical and unsafe.

Power tools being mounted to the under side of the bench top allows material to be fed into the power tool therefore only requiring control of material during cutting, not both material and power tool. Overcoming problems with current practices where both material and power tool has to be handled during the process of cutting creating more potential for human error and injury. For example, a filler between a cabinet and wall or cabinet can be of the width of a finger by 720mm high and general practices is to cut by power saw away from S. the line of measurement then plane into the line of measurement creating a finished cut. Considering the narrow size of the material and the fact that this is achieved by handling the material and power tool at the same time, this Spractice is very precarious.

To further highlight the precariousness of current practices is when a mitre cut filler is needed in a angular lay-out kitchen ie 22.5 to 45 degrees filler cuts.

Considering that mitre cuts are often done on filler pieces as narrow as your finger you realise the danger of current practices compared to putting the filler through the mitre cut of the MWS. On the MWS material is guided through the table saw on the measured line and because of the down ward cutting motion of the table saw this leaves a finished cut in one action, whether it be a mitre a perpendicularcut In the case where the kick plate of a kitchen (ie. plinth system) has to be scribed to the contour of the floor, in general it is marked on the face of the kick then cut by hand with either a jigsaw or power saw both having an upward cut and causing a blowout (ie. rough finish) on the finished piece.

Where as using these tools mounted on the MWS creates a down ward cut preventing blow outs in the cut, hence a better finish.

With out spelling out the different capabilities of other conventional table saws the MWS with its fixed power tools has a number of capabilities including the following: specifically designed to build kitchen cabinets and timber doors on site it can cut with the mounted saw, internal and external parallel degree cuts of 92 to 43 degrees with a feed into the cutting blade at 1200mm and a support of the off-cut of the same length.

it can cut with a mounted saw, horizontal planes at a elevation of approx.

760mm lengths of sheeting that can be used are 2400 by 1200mm by with the router being mounted, milling profiles and tongue and grooving with the jig saw being mounted, curved edges can be cut with the planner being mounted, thicknessing of up to 75mm wide can be achieved The dimensions and design of the MWS's mounting space for a 9 inch circular power saw, mounting space for a planner, and mounting space which is adaptable to either a jigsaw, router or laminex trimmer make it universal for fitting most makes of major brand power tools. This allows the preference of your own tools to be fitted rather than buying specific tools to suit the bench.

.9 inch circular power saw, Makita, Ryobi, Hitachi, MX6, Triton "outer or laminex trimmer, Makita, Ryobi, Hitachi, Bosch :i planner, Makita, Ryobi, Hitachi, Bosch ::jigsaw, Makita, Ryobi, Hitachi, Bosch The keystone to the table saw is the universal fitting riving knife that attaches to the depth setting component of the power saw which also allows to follow ***the angle of cut of the power saw from 92degrees to 43 degrees. The riving knife also acts as a support for a overhead guard that also follows the same angles of cut and protects limbs from injury. Also included in the MWS is a :-....adjustable stainless steel sliding plate which slots over the riving knife into the :bench top slots and maintains a 4mm clearance on each side of the blade no 'matter what degree of cut the blade is set at. All of these features maintain a work safe situation during all angles of cut.

The support braces for the rear extension of the table connect to the adjustable handles which can be moved in or out to maintain the optimium degree for bracing when the table is extended The mobile work station has various features which makes it a fully functional unit for kitchen building and installation. While the concept of a MWS is a product of the processes involved in kitchen installation it can also be applicable and adaptable to many other processes involved in the building industry, primarily other types of carpentry work, formwork, cupboard building and installation, fixout of skirting, door jams, architrave The MWS has been designed to comply with all work cover safety standards.

Following on: Technical features considered to be characteristic of the MWS The MWS has features which make it mobile and manoeuvrable: The MWS is adaptable to pneumatic tyres or stair climbing wheels lending it suitable to various terrain's (ie. tri-wheels). These are attachable/detachable by finger controlled spring pins. Refer to plate 1 The MWS has an adjustable low bearing axle for leverage which can be adjusted by loosening bolts connected to the trolley and the pushing carriage forward or backwards as desired then tightening bolts, allowing the upper carriage load to be shifted forward or backwards to equalise balance of the MWS when carrying it. Refer to plan section C and F The MWS has extendible handles made out of telescopic steel square tubes can be adjusted by finger controlled pins to suit individual height of the operator and terrain. Refer to plan section C The support braces for the rear extension of the table connect to the adjustable :ihandles which can be moved in or out to maintain the optimium degree for bracing when the table is extended. Refer to plan section D and Landscape A :..The MWS has extendible handles which have adaptations for a wheel axle by slotting a steel axle through holes in the handles fixed by finger control split pins or single caster wheels can be placed inside the end of the square tube, allowing the MWS to be pushed on four wheels when working on a site including when it is fully extended and also allows the MWS to be easily loaded into a car. The wheel axle has the added function of a holding bar when transporting the MWS. Refer to Plan Section C.

eeee The rectangular shape, dimensions and design allows the MWS to be Smanoeuvred in a 360 degrees turn in a one meter square area. The width of the MSW allows it to be pushed through the smallest door frames ie. approx.

600mm width. Refer to Plate 2.

The compact dimensions of the MWS allow it to be transported in a small station wagon. Keeping it out of the weather and secure. Refer to Plate 3 The lockable storage area on MWS allows tools and hardware to be easily stored and transported. Refer to photograph in plate. Refer to Plate 4 and The MWS has a timber workbench The bench top is extendible on all four sides. Side pieces each fold out 300mm supported by aluminium braces. The outside of the back extension, extends from the circular saw blade 1300mm. The back extension can be adapted to the front and will extend 1050mm from the front of the saw blade. Refer to Plan section B, Topograhic A and Rearview to extendible table.

The bench top inverts 180 degrees to assist in mounting the saw and adjusting depth and angle of the saw blade, and mounting the router, jigsaw, planner and laminex trimmer, as well as providing access to stored tools and hardware.

Refer to Section A.

The MWS has mounting space for three different tools at a given time. It has mounting space for both a 9 inch circular saw and planner and a single mounting space to which a jigsaw, router or laminex trimmer can be fixed. The mounting space for power tools is designed to fit most major brands egs.

Makita, Ryobi, Hitachi. All power tools are fixed by toggles that are adjustable to the width and depth of the foot of each power tool by the tolerance of the sizes (ie. length and width) of the slot. Refer to Section B. All power tools can easily be installed and removed from the MWS by adjusting toggles (normally a 5 minute procedure). Refer to Section B and Plate 6.

A steel riving knife has been designed to attach to most major brands of 9 inch circular saws, preventing binding when cutting material at 92 degrees to 43 degrees and to act as support to an overhead guard maintaining work safe procedures of cutting material. Refer to section G and Plate 7, 8 A adjustable stainless steel sliding cover plate fits over the riving knife into trenched slots on the workbench fixed by nut and bolt, designed to follow the angles of arc that the circular saw blade cuts. This plate allows 4mm gap of tolerance each side of the cutting blade covering up the void allowed for movement from 92 to 43 degrees cut Refer to Section E and Plate 7, 8 SThe MWS's power adaptations: The MWS runs off a one phase power source. It has a detachable residual overload circuit breaker (ie earth trip switch) built into a stop/start station and all mounted power tools plug into this power source in compliance with work safety standards. Refer to plate 9 The MWS has an attached power board for 4 -6 power outlet for accessory tools.

MWS provides security: The MWS is lockable allowing tools and equipment to be secured in the workstation. The MWS can be padlocked to a fixed object or wheels can be detached to deter thieves from taking the whole unit.

.o Table 1 Tools and material carried on site for Kitchen installation router S jigsaw 9 inch circular saw, 6 inch circular saw planner two electrical drills glue gun :clamps vices multi-grips 2 levels 3 extension power cords safety circuit power box mason mitre jig two cordless screw guns, batteries and charger belt sander square, rulers, hammer, chisels, hole saws, nail bag, screws, nails, glues and fillers and other hardware Material the MWS is made of: The storage compartment of the MWS (Section F) can be made out of timber ply (18mm), aluminium (3mm) or steel (1.5mm). Preferably aluminium.

The bench top of the MWS (Section B) can be made out of timber ply (18mm), aluminium (3mm) or steel The trolley frame of the MWS (Section C) can be made of steel (2mm).

The wheel axle (Section c) of the frame can be made of steel (18-19mm).

The riving knife is made of steel but can be made of cast iron.

Claims (8)

1. The MWS has designed lockable storage area and mechanisms for transportation of tools and equipment and a bench top designed to mount up to three different power tools at any given time, a 9 inch circular saw and planner, and either a router, jigsaw or laminex trimmer of most major brands (Mackita, Ryobi, Hitachi, festo).

2. The MWS of claim 1 with load bearing axle for leverage which can be adjusted by loosening bolts connected to the trolley and by pushing the carriage forward or backwards as desired and then tightening bolts, allowing the upper carriage load to be shifted forward or backwards to equalise balance of the MWS when carrying it.

3. The MWS of claim 1 with wheel axle which is adaptable to either pneumatic tyres or stair climber wheels tri-wheels) by finger controlled split pins.

4. The MWS of claim 1 with extendible handles made out of telescopic steel square tubes which can be adjusted by finger controlled pins to suit individual height of the operator and terrain. The MWS of claim 1 and 4 with extendible handles which have adaptations for a wheel axle by slotting a steel axle through holes in the handles fixed by finger control split pins or single caster wheels can be placed inside the end of the square tube, allowing the MWS to be pushed on four wheels at a given time and for sliding the MWS when loading it into a car and the axle has the added function of a holding bar when transporting the MWS. 2. The MWS of claim 1 with a work bench with adaptations to extend the bench on the front and back sides by pulling out or pushing in telescopic round tubes to extend the bench 1050mm from the front to the saw blade and 1300mm from the back to the saw blade) support braces for the rear extension of the table connect to the adjustable handles which can be moved in or out to maintain the optimum degree for bracing when the table is extended and to extend each of the sides 300mm, which are fastened by hinge and which can be supported by aluminium tube braces mounted to the under side of the extendible sides of the bench top and which slot into a foot on the storage carriage 3. The MWS of claim 1 with a bench top with a hinge at the front allowing it to be inverted 180 degrees for ease of adjusting and fixing power tools to underneath of bench. 4. The MWS of claim 1 with an attachable universal riving knife (Mackita, Ryobi, Hitachi, Triton) which is fixed to the depth component of a 9 inch circular saw by three bolts which also allows adjustment to the knife to be toed in or heeled out to follow the alignment of cutting as well as adjustment to the different cutting alignment dimensions of other power saws and inaddition follows the angle of cutting arc 92 degrees to 43 degrees preventing binding and also acts as a support to the overhead guard through all angle of cuts.

5. The MWS of claim 1 with a adjustable stainless steel sliding cover plate which fits over the riving knife onto the work bench covering the void made for the movement of the saw blade from 92 degrees to 43 degrees. following the same angle of cut of the riving knife attached to a 9 inch circular saw, maintaining a 4mm gap clearance each side of the blade

6. The MWS of claim 1 with a detachable residue overload circuit breaker, start/stop station.

7. The MWS of claim 1 can be a eight in one unit in that it provides a compact transportable work bench that houses a circular saw, router, jig. saw. planner. laminate trimmer and lockable tool box making, is one man operated, easier to lift, balanced and moves equipment to and from jobs simply in a single trip.

8. The MWS of claim 1 can build a complete timber doored, ply, particle or medium density fibre board cabinet kitchen AN APPLICANT Bradley Sharp and Megan McCullough 16 August 1999