AU750774B2 - Self locking strip joiner - Google Patents

Self locking strip joiner Download PDF

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Publication number
AU750774B2
AU750774B2 AU97188/98A AU9718898A AU750774B2 AU 750774 B2 AU750774 B2 AU 750774B2 AU 97188/98 A AU97188/98 A AU 97188/98A AU 9718898 A AU9718898 A AU 9718898A AU 750774 B2 AU750774 B2 AU 750774B2
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AU
Australia
Prior art keywords
self locking
joiner
locking strip
protrusion
intrusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU97188/98A
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AU9718898A (en
Inventor
Heinz Zehnder
Original Assignee
Heinz Zehnder
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to AUPP6123A priority Critical patent/AUPP612398A0/en
Priority to AUPP6123 priority
Application filed by Heinz Zehnder filed Critical Heinz Zehnder
Priority to AU97188/98A priority patent/AU750774B2/en
Publication of AU9718898A publication Critical patent/AU9718898A/en
Application granted granted Critical
Publication of AU750774B2 publication Critical patent/AU750774B2/en
Anticipated expiration legal-status Critical
Application status is Ceased legal-status Critical

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Description

AUSTRALIA

Patents act 1990

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e COMPLETE SPECIFICATION STANDARD PATENT SELF LOCKING STRIP JOINER The following statement is a full description of this invention, including the best method of performing it known to us: self locking strip joiner This invention provides the means ofjoining any size and kind of material together to form a sturdy joint with an external strip, using no glues or fixings, only the profile of the strip and the action where the two materials join.

Traditional tongue and groove joints rely on friction and/or glue to hold a joint together. This method of joining materials together results in a joint which cannot be dismantled, meaning the two materials have to be damaged in order to take them apart. They also rely on the additional fixings in order to provide restraint to forces along the plane of the joint. For use in a swimming floor (very common throughout Europe) the ability to re-use the floor is very important. At present a majority of these floorings are damaged or rendered unusable when the owner attempts to remove the floor and take it with him or her to the next house. This not only proves costly to the owner but it also results in a significant environmental cost as new materials are been constantly :""manufactured. As well the labour cost for an individual installing this 20 system is high due to the need for using glue and/or other fixings, additional tools as well as the force required to ensure the two surfaces are completely flush together.

This new system overcomes these problems by providing a method of 25 joining two materials/surfaces together which utilises a protrusion and an intrusion which lock together using a lever or rolling action, whose very action ensures that the inner face of the intrusion is higher than the outer face thereby resisting loads along the plane of the joint and thus 3 eliminating the need for glues and other fixings The key to the system lies in the profile of the protrusion and the intrusion which lock together. The profile is a result of the need for ensuring the two surfaces come together cleanly and neatly with a minimum of effort on behalf of the user. The resultant profile utilises the materials or surfaces as a lever action, thus their own length and weight aids in reducing the' amount of force required to bring the two Sjoining elements together. It is also necessary for the joint to resist loads laterally as well as along the plane of the joint. Thus it is the profile of the protrusion/intrusion and the action of them coming together which is the key in the patent of this invention.

The joint is made using a plastic strip moulded to an appropriate profile which locks into the intrusions in each of the surfaces. This is of benefit in that the strip can be slid into the opening created by the two intrusions in situations where it is not possible for the two surfaces to lock together by the normal rolling or lever action.

This application would be of great benefit in furniture making and the like where adjustable elements are needed. In this scenario the strip could be manufactured on a large scale and a tool could be sold which prepares the intrusions in the surface of the materials to be joined. This enables use by all people in their home or work environment.

The strip would also prove economical in the joining of timber, aluminium, steel and even precast concrete panels.

To assist with understanding the invention, reference will now be made to the accompanying drawings which show one example of the invention.

In the drawings: Fig 1 shows the two materials to be joined and the centre strip which provides the mechanism for joining these. In this drawing the lever action is being shown.

Fig 2 shows the completed joint which comprises of the two materials and the self locking strip which joins them.

Referring to Fig 1 it can be seen that the self locking strip joiner comprises of an extruded plastic strip joiner symmetrical on both sides, profiled with a rounded upper edge to enable the lever action to join the material The material has a rounded upper face of its intrusion profiled to match the strip joiner The underside of the strip joiner is angled appropriately to accommodate the depth of rounded section of the material as it is placed and rolled into position. Also on the underside of the strip joiner is a triangular protrusion which enables the material to lock into position via a corresponding intrusion This ensures that the material cannot reverse in its action, rather it is held in place. The above described action is the same in the case ofjoining the strip joiner to the material Material 1 and 2 could be the same material or two different materials.

Referring to Fig 2 it can be seen the two materials and the strip joiner in their final positions. The lowest point of the rounded 20 upper edge of the strip joiner is lower than the outer edge of the same rounded section. This enables the joint to resist any forces (9) which would try to separate the three elements (1,2 This figure also shows the self locking element holding the materials (1 2) to the strip joiner at the conclusion of their rolling action. This self 25 locking capacity is achieved with a minimum of force due to the fact that the materials (1 2) act as a lever, using their own length and weight to come together. This lever action also works in reverse so that dismantling the joint also takes a minimum of force.

Claims (5)

1. A self locking strip joiner comprising of a protrusion and an intrusion which lock together two materials via a lever action and triangular protrusions resist force in the plane of the joint without the use of additional glues or fixings and is thus able to be dismantled without undue damage to the material.
2. A self locking strip joiner of claim 1 wherein the protrusion and intrusion have a corresponding rounded edge to facilitate a rolling action to bring the two materials together therefore producing a precise joint with a minimum of force.
3. A self locking strip joiner of claim 1 wherein the triangular protrusion and intrusion when housed together form a lock that resists the reversal of the rolling action of claim 2 without minimum of force. ooooo A self locking strip joiner of claim 1 wherein the rounded profile 20 of claim 2 is lowest at its inner edge of the protrusion and higher at the outer edge of the protrusion hence resisting force along the this plane except by reversing the rolling action which is locked in place by triangular protrusion and intrusion of claim 3.
5. A self locking strip joiner of any one of claims 1 to 4 wherein the joiner is a strip extruded from plastic or other suitable materials and two materials to be joined have corresponding intrusions.
6. A self locking strip joiner substantially as herein described with reference to the accompanying drawings. Heinz Zehnder 31 May 2002
AU97188/98A 1998-09-24 1998-12-17 Self locking strip joiner Ceased AU750774B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AUPP6123A AUPP612398A0 (en) 1998-09-24 1998-09-24 Self locking strip joiner
AUPP6123 1998-09-24
AU97188/98A AU750774B2 (en) 1998-09-24 1998-12-17 Self locking strip joiner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU97188/98A AU750774B2 (en) 1998-09-24 1998-12-17 Self locking strip joiner

Publications (2)

Publication Number Publication Date
AU9718898A AU9718898A (en) 2000-03-30
AU750774B2 true AU750774B2 (en) 2002-07-25

Family

ID=25641812

Family Applications (1)

Application Number Title Priority Date Filing Date
AU97188/98A Ceased AU750774B2 (en) 1998-09-24 1998-12-17 Self locking strip joiner

Country Status (1)

Country Link
AU (1) AU750774B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242530A1 (en) * 1992-12-16 1994-06-23 Walter Friedl Constructional element for walls, ceiling, or roofs
AU3256997A (en) * 1996-06-11 1998-01-07 Unilin Beheer B.V. Floor covering, consisting of hard floor panels and method for manufacturing such floor panels
AU5142099A (en) * 1998-07-24 2000-02-21 Unilin Beheer B.V. Floor covering, floor panel for such covering and method for the realization of such floor panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242530A1 (en) * 1992-12-16 1994-06-23 Walter Friedl Constructional element for walls, ceiling, or roofs
AU3256997A (en) * 1996-06-11 1998-01-07 Unilin Beheer B.V. Floor covering, consisting of hard floor panels and method for manufacturing such floor panels
AU5142099A (en) * 1998-07-24 2000-02-21 Unilin Beheer B.V. Floor covering, floor panel for such covering and method for the realization of such floor panel

Also Published As

Publication number Publication date
AU9718898A (en) 2000-03-30

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Legal Events

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MK1 Application lapsed section 142(2)(a) - no request for examination in relevant period
NB Applications allowed - extensions of time section 223(2)

Free format text: THE TIME IN WHICH TO REQUEST EXAMINATION HAS BEEN EXTENDED TO 20011110

FGA Letters patent sealed or granted (standard patent)