GB2490004A

GB2490004A - A guide or template for use in installing flooring material in an internal corner

Info

Publication number: GB2490004A
Application number: GB201203837A
Authority: GB
Inventors: Stephen Alford
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-03
Filing date: 2012-03-03
Publication date: 2012-10-17
Anticipated expiration: 2032-03-03
Also published as: GB2490004B; GB201203837D0

Abstract

The template comprises a cut out â Vâ shape D which in use is marked onto a sheet of vinyl flooring to allow the production of an internal corner. The template is laid on a sheet of vinyl flooring and the â Vâ shape D is marked onto the vinyl using a trimming knife. The template further comprises a gap A which is used to mark out the setting point which in use marks out the correct amount of material for installing an internal corner section of vinyl flooring.

Description

DSCBIPTION

Preparation of the Internal corner On a bare internal corner of any room pencil marks are made at 150mm and a vertical chalk line is then made to determine this 150mm measurement. These two lines are created 150mm from the internal corner where the vertical walls meet at the internal corner. Another two horizontal lines are also created 150mm from the top of the wall onto the ceiling on both sides of the ceiling/wall junctions. The 150mm measures are recommended Industry standards.

Vinyl is then installed onto the ceiling following these horizontal chalk lines.

The internal corner of any room is prepared by installing cove former (CF38) along all vertical and horizontal junctions where the ceiling junction meets the top of the wall and where the walls meet at their internal corner. Once the CF38 has been installed a tn-mitre' has been created at the centre/top of the internal corner allowing the CF3Smm radius to be continuous, The CF3S creates a radius at these junctions for the vinyl to follow when it is being installed.

Vinyl is then installed on the flat surface of both walls set on the 150mm vertical chalk lines on both of the walls Leaving a 280mm gap at the internal corner for vinyl to be installed with relative ease using the stencil Mitre Maker.

As you look at the internal corner that has now been prepared with one piece of sheet vinyl on each side of the vertical wall 150mm from each side of the internal corner, a pencil mark is made on the right hand side of the sheet vinyl that is 200mm from the base of the CF3S that has been installed along the ceiling/wall junction. This 200mm pencil mark is used to set' the vinyl for the 280mm gap and enables the vinyl to run' up the CF38 onto the ceiling and beyond the 150mm horizontal chalk line that has already been created with enough overlap of vinyl to be trimmed into the ceiling vinyl joint.

We can now prepare the sheet vinyl using the Mitre Maker that is to be inserted and installed into this 280mm internal corner.

Mitre Maker -Instruction

iNTRODUCTION TO DRAWINGS

Drawing 1/2 is an outline of the Mitre Maker which shows the dimensions and measurements.

Drawing 212 an outline of the Mitre Maker showing the ruler option that enables it to be used where the dimensions of the internal walls are less than lSOmm.lt also shows the angles and measurements that are required to make the wall/ceiling interior vinyl tn-mitre.

Sheet vinyl is laid fiat on a clean floor, face side upwards. The Mitre Maker is then placed onto the right hand manufactured side of the sheet vinyl flush with the right hand side of the Mitre Maker (see drawing 1/2 fig B) at the 135mm measurement that is shown on the ruler of the Mitre Maker (see drawing 1/2 fig C) and in turn the Mitre Maker is flush with the horizontal top side of the sheet vinyl (see drawing 1/2 fig E).

Once the position of the Mitre Maker is final the floor-layer makes a pencil mark around the V1 shape of the Mitre Maker (see drawing 1/2 fig 0) and the left hand side of the Mitre Maker (see drawing 1/2 fig F). A pencil mark is also made on the 200mm setting point' gap that the Mitre Maker has on the right hand side of the Mitre Maker (see drawing 1/2 fig A). This pencil mark will then be the setting point' that has previously been made on the already installed right hand vertical side of the internal corner.

Using a floor-layers straight edge and trimming knife the shape that has been drawn onto the vinyl is scribed out neatly. The pencil marks that have been drawn on the left hand side of the Mitre Maker (see drawing 1/2 fig F) are also scribed out neatly and continued horizontally down the desired measured length of the internal corner.

The sheet vinyl is then parted by pulling the vinyl up towards you where it breaks along the length of the desired measurement. The vinyl insert is the turned over and prepared with a contact adhesive and allowed to dry until the contact adhesive becomes touch dry'.

Once the contact adhesive is touch dry' the shape of the vinyl that has been scribed can be removed from the main body of the vinyl leaving a prepared mitre before installation. This unique pre-cut' shape will enable the experienced and even a novice floor-layer to install and achieve a vinyl tn-mitre' to an internal ceiling/wall junction with relative ease. In previous years the vinyl tn-mitre' had been installed using a traditional free-band' cutting method. This is where the inserted vinyl was cut to try and achieve a vinyl tn-mitre' by pure guesswork. This traditional cutting method process is fraught with difficulty for the even the most experienced floor-layer to try and achieve a vinyl tn-mitre'. Some of the reasons this method is not fit for purpose in many cases are: 1. Only an experienced floor-layer can attempt the installation 2. Every completed tn-mitre' is inconsistent in its appearance 3. The vinyl has not been installed neatly and firmly onto the CF38, denying its role and function to reduce the build up of contaminants and bacteria in the most crucial area of a clean-room or controlled environment. This is caused by the amount of stress and tension that is created when manipulating the vinyl at the centre of the tn-mitre' giving the experienced floor-layer a difficult task to achieve 4. In many cases as the tn-mitre' is being attempted to be installed by the experienced floor-layer, creases and kinks can be left on the vinyl reducing the appearance, integrity, quality and function and role of the vinyl tn-mitre' S. When the hot welding of the mitre is attempted, if the vinyl is not sitting' neatly and firmly onto the CF38,, it becomes difficult for even the most experienced floor-layer to achieve an acceptable standard of that welded joint.

6. When feeling and touching the completed' vinyl tn-mitre,' it is evident in most cases that the completed' vinyl tn-mitre' is inconsistent in its appearance, integrity, quality and function and role and has not achieved the consistent 38mm radius that it is supposed to Using the pre-cut' shape that the Mitre Maker has established the vinyl insert is warmed by a blow torch to soften' the vinyl so it can be placed with relative ease onto the 200mm setting point' that has been marked by a pencil on the right hand vertical side of the wall vinyl and has also been marked by a pencil onto the vinyl using the Mitre Maker setting point' function (see drawing 1/2 fig A).

Once the vinyl insert has been set at the 200mm setting point' it is then warmed again with a blow torch to soften' the vinyl insert so the floor-layer can manipulate the vinyl insert down the right hand existing vertical vinyl wall joint.

Once this has been achieved the floor-layer warms the vinyl insert again to soften' the vinyl insert and the floor-layer further manipulates the vinyl insert so it sits' neatly and firmly onto the vertical internal CF38.

The vinyl insert is then pressed onto the adjacent wall and overlaps the existing wall vinyl vertical joint.

The floor-layer then warms the vinyl insert with a blow torch to soften' the vinyl around the vinyl tn-mitre' at the ceiling/wall junction.

The floor-layer then begins to manipulate the left hand side of the pre-cut vinyl tn-mitre' ensuring the vinyl is rolled' onto the CF38 at a 45 degree angle and along the existing vertical vinyl wall joint.

This part of the installation once completed leaves the floor-layer a 45 degree vinyl angle (see drawing 1/2 fig G) that runs' from the centre of the tn-mitre', up along the CF3S at the tn-mitre' and onto the ceiling and beyond the horizontal existing ceiling joint. There has not been a need to make a cut with a trimming knife by the floor-layer at this stage and a 45 degree angle has been achieved in vinyl and therefore a simple cut by the floor-layer with his trimming knife at the next stage of the installation to complete the vinyl tn-mitre'.

The existing left hand side vertical vinyl joint has been overlapped by the vinyl insert. The vinyl is further warmed by a blow torch along and down the entire overlapped vinyl joint and is cut using a trimming knife by the floor-layer and a neat flush' joint is achieved along the ceiling joint, down the CF3S at the ceiling/wall junction and continued down the desired length of the existing left hand side vertical vinyl joint.

The floor-layer then warms the vinyl insert with a blow torch to soften' the vinyl again around the vinyl tn-mitre' at the ceiling/wall junction with particular emphasis on the right hand side of the tn-mitre'.

The floor-layer begins to manipulate the right hand side of the pre-cut vinyl tn-mitre' ensuring the vinyl is rolled' onto the CF38 at a 45 degree angle. The right hand side of the pre-cut tn-mitre' is further pressed onto the ceiling and overlaps the left hand side of the vinyl tn-mitre'. This leaves the floor-layer with a relatively easy task of cutting in' the tn-mitre' vinyl joint to the existing left hand side. Using the Mitre Maker eliminates kinks' or creases' on the completed vinyl tn-mitre' and ensures the vinyl is sitting' neatly and firmly onto the CF38 fulfilling the function and role of a vinyl internal tn-mitre' in clean-rooms and controlled environments. It provides a smooth easy clean surface that inhibits the growth of MRSA and other bacteria essential when a sterile environment is a requirement. It enables a smooth transition when stenilising this area. A ray of light is evident on all three elevations of the CE38.The ray of light is proof that the vinyl has been installed neatly and firmly onto the CF3S utilising the radius of the CF38.

The floor-layer is left with vinyl joints that have been created by this installation of vinyl. These joints are hot welded using a welding hot air gun used as standard in the trade. This task becomes easier and with more success when the Mitre Maker is used to pre-cut the vinyl internal tri-mitr& giving the client a fit for purpose internal vinyl tn-mitre'.

Other attributes The Mitre Maker has a unique ruler function (see drawing 1/2 fig C) that can enable the floor-layer to pre-cut vinyl tni-mitres' for internal corners that have a recess of less than 150mm.

Summary

We have explored all the possible mitres on the markets which are basically DIV kits for domestic flooring. We have also studied the patents below and along with US7866102 deal with mitres that are actually used on the floor not the specialist wall/ceiling interior corners of a cleanroom and associated controlled environments governed by 15014644.

W02012010239,U52010037398,G8246161,US2007074413,US20060597010S5513258, FR2711086,U 55285580,US4429461,EP0657307 and tJS28O2259.

As an experienced cleanroom floor layer who has worked for Astra Zeneca, Teva and other leading pharmaceutical companies as well as for HMG at Potion Down I can confirm that the Mitre Maker is an indispensable novel and innovative way of completing a vinyl tn-mitre in a waIl(ceiling interior corner of a cleanroom and associated controlled environments.