GB2477969A

GB2477969A - Method for turning a turntable

Info

Publication number: GB2477969A
Application number: GB1002905A
Authority: GB
Inventors: John Cocker
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-20
Filing date: 2010-02-20
Publication date: 2011-08-24
Also published as: GB201002905D0

Abstract

The method includes a DC drive motor and gearbox 3A and 4A with drive wheel 5A when the said motor/ gearbox is energised the drive wheel 5A being pressured onto friction drive ring 2A rotates the table 1A. The drive motor 3A being remote controlled and, energised by battery 7A which is kept charged by trickle charger 8A.

Description

DISCRIPTION

The invention is methods to turn a turntable in order to allow a vehicle to be turned facing the opposite direction.

Although there are already methods to turn a turn table round,most need a costly mains electrical instalation which means the turntable is not self contained therefore is a very skilled installation project.

The present invention seeks to over come these problems by making the turntable self contained and therefore will become a d.i.y. or handyman project.

According to the present invention there is provided a choice of methods as described by the accompanied drawings /drawing index and description.

Drawing 1 Shows two drums 4. 5 at a set distance on the vehicle table 1 these drums being able to wind round their body a cable 2 Drum 4 is remote controlled with limit stops,cluth / brake and is powered by a d/e motor similar to ones used to pull vehicles onto a breakdown truck.

The said motor is energised by battery 9 which is kept charged by a solar trickle charger Drum 5 is a flat drum located around the central axis of table lit includes a spring return and a outside face to accommodate an attached cable 2,also attached is a drive arm 3.

This drive arm 3 has a ratchet drive lever 7 and a table brake actuator 6.

Spaced at I 80%permantly attached to the outer edge of the table 1 are drive catches 8.

After the vehicle has mounted the table 1 the drum 4 is then actuated by remote control allowing cable 2 to be tentioned then cable 2 winds round the drum,as cable 2 is attached to the other end of drum 5 it would pull it round its axis,and as the drive arm 3 is also attached the ratchet drive lever 7 engages the drive catch 8 thus rotating the table 1 all the way until the cable 2 reaches the stop limit 11 The vehicle is then in the right position to leave the table,the remote control then de/energises drum 4 which allows drum 5 being spring loaded to return to its original position.

As the other drive catch 8 as now rotated 180% and the ratchet drive lever 7 has ratcheted over drive catch 8 on the table I,the drive arm 3 also operates the table brake actuator 6 to engage and disengage the brake pin that brakes table 1, The table is now ready for a repeat operation.

An electrical cut-out or a variable clutchl brake setting could be incorporated as a safety feature.

Drawing 2 Shows an alternative method to operate a turntable 1 A. There is a remote control drive motor /gearbox 3A 4A and a drive wheel 5A all similar used on the type used on caravan movers,also built in could be a pressure release 9A in order to lift the drive wheel 5A in an emergency The dc motor would be energised by a battery 7A and a solar powered trickle charger 8A There would be a friction plate drive ring 2A for example rubber faced this would be in circumfrencearound the centre of the table IA When the vehicle has mounted the tablelA the remote control energises the drive motor 3A to make the drive wheel SA rotate moving the friction drive ring 2A.

The remote control set up would allow the table to be rotated in either direction and stop in any position,also when the drive 3A is deenergised it would operate as a brake due to the friction between the drive wheel 5A and the friction drive ring 2A Modifications and variations of the present invention will become apparent to those skilled in the art,it is intended that all modifications will be included in the scope of the present invention.

Further the invention not only covers embodiments as described but also combinations of features and embodiments.

INDEX NUMBERS ON DRAWINGS

1 Vehicle table

2 Cable 3 Drive arm 4 Remote control drive motor and drum Cable spring loaded return drum 6 Table brake actuator 7 Ratchet drive lever 8 Drive catch 9 Battery Solar powered trickle charger 11 Stop limits 12 Inspection cover

1A Vehicle table

2A Friction drive 3A Remote controlled drive motor 4A Gear box 5A Drive wheel 6A Inspection cover 7A Battery 8A Solar powered trickle charge 9A Pressure release

Claims

Claims 1 The invention is methods to allow a vehicle turntable to be rotated and leaving it facing in the opposite direction and also self contained allowing a d.i.y.installation arid no costly and technical mains needed.
2 A method according to claim 1 where the turntable is moved by a method where there is a drive motor and two drums at a set distance apart and a cable to turn the table when tensioned round the cylindrical drum as per drawing 1.
3 A method according to claim 2.where the cable could be substituted by a gear style drive.
4 A method according to any proceeding claim where there is an attached arm to the centre drum with a one way ratchet lever to facilitate the table movement.
A method according to any proceeding claim where there is a brake actuator on the attached arm.
6 A method according to any proceeding claim where there is a spring return on the centre drum in order to return the table to its original position when controlled by the limit stops.
7 A method according to any proceeding claim where there is a safety cut out on the motor or a safety system on the drive lever.
8 A method according to any proceeding claim where there is a drive motor/gearbox and a drive wheel all similar as used on caravan movers see drawing 2.
9 A method according to any proceeding claim where there is a friction plate around the centre of the table.
A method according to any proceeding claim where their would be built in a pressure release system for lifting the drive wheel as a safety measure.
11 A method substantially described herein with reference to and illustrated theaccompanying drawings and description.