Buckles – buttons – clasps – etc. – Separable-fastener or required component thereof – With third detached member completing interlock
Patent
1989-10-31
1990-12-18
Brittain, James R.
Buckles, buttons, clasps, etc.
Separable-fastener or required component thereof
With third detached member completing interlock
24587, 24671, A44B 1700
Patent
active
049776487
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to an arrangement for a snap lock comprising a first component, which has a projecting part, which is capable of being introduced into a corresponding cavity in a second component, in conjunction with which there is present in the aforementioned component, or alternatively in the wall of the cavity, at least one indentation arranged across the direction of introduction, into which a snap device arranged in the wall of the cavity, or alternatively on the projection, is so arranged as to snap into engagement on being introduced, for the purpose of producing a locking function.
There is already available on the market a large number of different embodiments of snap locks, which, although they function satisfactorily and are of at least seemingly simple construction, nevertheless consist of a number of mechanically interacting components. These usually consist of springs, or contain spring components to produce the snap effect, which means, amongst other things, that the hardness of the snap effect cannot be varied without significant intervention in the snap lock, or can only be varied by changing to another snap lock with increased or reduced hardness in the snap effect.
SUMMARY OF THE INVENTION
A primary object of the present invention is to make available a snap lock of the kind referred to by way of introduction, which is of simple construction, especially with regard to the snap device, the hardness of which can easily be given an appropriate value. This is achieved in accordance with the invention by the first and second components of the snap lock consisting of pieces of two extruded profile strips made of a rigid material such as plastic or light metal and cut preferably to identical length, in conjunction with which the aforementioned snap device is in the form of a piece of profile strip made of a flexible material such as plastic or rubber introduced into an undercut groove which extends all the way through the profile, which profile strip exhibits a cross-section such that it is capable of being introduced into, and is thus capable of being fixed in the undercut groove, which, thanks to its undercut profile, follows the external form of the profile strip over more than half its circumference.
As will be appreciated from one particular characteristic feature of the invention, the profile strip which forms the snap device can be a piece of hose, the wall thickness of which is selected so as to achieve appropriate hardness in the snap effect.
It is clear from other particular characteristic features of the invention that the snap lock can be double-acting by providing the aforementioned first component with two diametrically opposing projecting parts, each of which is capable of being introduced into its own cavity in components of the same kind as the aforementioned second component, in addition to which special decorative effects can be produced by the aforementioned first component comprising a piece of tubular profile moulding of circular, square or rectangular cross-section arranged between the projecting parts.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is explained in more detail below with reference to the accompanying drawing, in which
FIG. 1 illustrates in perspective view an embodiment of a snap lock in accordance with the invention.
FIGS. 2a and 2b illustrate in perspective view two different embodiments of double-acting snap locks in accordance with the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The embodiment of a snap lock in accordance with the invention illustrated in FIG. 1 comprises a male component 1 and a female component 2. The male component 1 consists of a mounting plate 1a with a projecting part 1b which is capable of being introduced into a correspondingly formed cavity 2a in the female component 2. The projecting part 1b is executed with two indentations 1c arranged to either side of same. A snap device 2b, which is arranged in the cavity wall, is so arranged as to snap into engagement in at le
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Brittain James R.
Conforex AB
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