GB2262275A

GB2262275A - Electric cable store

Info

Publication number: GB2262275A
Application number: GB9214311A
Authority: GB
Inventors: Roy Clayton Pearce
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-09-06
Filing date: 1992-07-06
Publication date: 1993-06-16
Anticipated expiration: 2012-07-06
Also published as: GB9214311D0; GB9119096D0; GB2262275B

Abstract

In an electric cable store, the cable, for example used to drive lawn mowers, power tools etc., is re-wound onto a reel rotated by falling weights. The store is portable, securable in the ground, and may deliver/retract cable to any point on a 360 DEG circumference. <IMAGE>

Description

ELECTRIC CABLE TIDIGUIDE TECHNICAL FIELD This invention relates to the use and winding of electric cables used for the operation of lawn mowers, hedge trimmers, power tools, etc.

BACKGROUND Electric cables or electric cable winding systems used at present do not overcome the problem of trailing cables causing the following difficulties: Accidental cutting of the cable Necessary continual moving or adjusting the cable to avoid the above, resulting in slower work.

This invention by creating a slight cable tension to keep the cable generally above ground or floor level and in a straight line between the appliance and the drum winding surface, whichever direction is being worked with reference to the latter, avoids the above problem.

ESSENTIAL The cable drum is continually rewound as required by the TECHNICAL action of gravity on the above created by weights which FEATURES together with cable guidance systems result in the cable being in slight tension and in a straight line.

The cable drum is supported on a revolving vertical frame or shaft at a convenient height for easy placing and operation. The vertical frame or shaft base is adapted for use either on a soft ground surface or a hard base. The latter by the use of an additional weighted base with provision for insertion.

EXAMPLE Specific embodiment of the invention will now be described by way of examples with reference to the accompanying drawing in which:- MK2B, MK3B and MK4A show by way of plans and elevations how the action of gravity can be used to operate these devices. A metal base "C" is inserted into either soft ground or special base for hard surfaces. The frame or shaft "B" is fitted over the latter. A previously clockwise wound drum and cable "A" is placed on the frame as indicated with the cable outlet (to appliance) inserted through plastic guide "D", the inlet length of cable "E" to "F" wound as indicated clockwise maximum nine times, is connected to fused plug and "Cut-Out" device.

Weight "H" attached to rings on nylon cords which are attached to pulley wheels which are also cogged for connection to cogged cable drum axle. The weights are wound up as the cable is pulled out and drop to retract the cable on to the drum.

As the cable is moved in an arc of 3600 or as any appliance is moved either away from or towards the cable drum position the cable remains in a straight line above ground. This is accomplished by the above description of working, together with the action of fixed or loose plastic guides working in conjunction with revolving nylon bearing or fixed threaded shaft.

TEXTUAL MATTER FILED WITH ORIGINALLY FILED DRAWINGS MK2B Cable outlet and guide Open nylon bearing and clip for holding.Double wheel nylon cord pulley and cogged drive. Pulley support arm and axle. Nylon screw in head. Loose spring 200 long.

Cogged cable drum axle 19mm colce diameter. Cable feed. Nylon cords. Top position of round weight. Water filled circular weight (hole in centre for upright to pass through.

Cast aluminium base.

Alternative weighted base (broken line).

Packaging for self assembly: Cardboard unit. 1.400 x 400 x 160 2A 1.300 x 500 x 140 3B Tension clips on connection to appliances.

Materials: Rigid and flexible PVC Aluminium Stainless steel Lead Sand MK3B Alternative cable - feed high level. Top position weighted cable drum.

No 2 Nylon bearings for spiral thread 55 mm apart - cable outlet.

Filled lead shot.

Telescopic plastic tubes to detail NTS (Diagrammatic) top tube cased in lead and affixed to base of drum.

19 mm cove diam nylon vertical shaft spiral thread 55 mm pitch.

Electric cable to drum wound clockwise. Cable to shaft wound clockwise (Diagram) 8 times minimum. As cable pulled out shaft cable unwinds then rewinds approx 16 times total. Cable to drum wound 16 times.

Cast aluminium base bottom tube fixed to this.

Cable feed low level.

Alternative weighted base shown broken line.

MK4A Flexible plastic tube cable within.

Rigid plastic tube to shape.

Cable entry.

Specially insulated cable for operating length over 17 metres from cable retractor.

Spring 250 long increase tension at extremity.

Oil filled cable drum.

Sheet lead facings.

Increase weight by 1libs for each additional metre of active cable to appliance.

Full size detail nylon spindle (renewable) Method of operation: Base and uprights assembled. Cable drum cogged spindle and trolley fitted to top of rachet. Capping and spring fitted.

Locking pin inserted. Cable fed through hollow axle to cable drum surface. Cable paid out to required operating length.

Locking pin released. Cable drum drops revolving rewinds cable.

F.S. Detail spindle axle and drum.

Materials: Rigid and flexible PVC Aluminium Stainless steel Lead Sand oil

Claims

CLAIMS 1. A retractable cable and guidance system which is easily moveable from one position to another as required.
2. A retractable cable and drum as in Claim 1. operated by gravity by means of applied weights created by lead, oil, water or sand.
3. A guidance system as in Claim 1. whereby a 3600 range of operation from a fixed point is obtained by either a revolving vertical frame operated by a rigid plastic cable guide with fixed arms or a purpose shaped cable drum outlet which in conjunction with cable tension prevents snagging in.
4. A plastic oval tube section subsidiary guide as described in Claim

3. which is split along the centre to provide easy cable entry without threading and is also moveable in a vertical field or direction by means of either an axle or a slot.
5. A frame or shaft separate base as shown which can be inserted by foot pressure and hand pressure into either soft ground or a sand filled subsidiary base with an aperture to suit base section for hand surfaces.
6. A coil spring assisted weight system for MK2B, MK3B and MK4A to increase cable tension at maximum cable extension to overcome possible ground friction on sloping surfaces.
7. A revolving telescopic spiral vertical shaft casing in MK3B to produce added weight and greater stability.
8. A shaft casing as in Claim 7. whose base has a fixing either to cast base or a worktop where smaller model is being used.
9. Cable entry positions to top and bottom at cable drum in MK3B to allow alternative cable feed operations.
10. A self weighted cable drum in MK4A with a cogged spindle axle which acts on a vertical ratchet contained in the frame.
11. A plastic tube section connected to cable entry at hollow axles in MK2B and MK4A through which cable passes when constant high level cable feed is required.