Buckles – buttons – clasps – etc. – Bale and package ties – hose clamps – With tighteners
Patent
1993-09-10
1995-01-31
Brittain, James R.
Buckles, buttons, clasps, etc.
Bale and package ties, hose clamps
With tighteners
F16L 3304
Patent
active
053849361
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a pipe-clip, comprising an annular clip body having on its inner side a lining of an elastomeric material and having both of its ends bent into flanges which are to be pulled together by means of a fastening screw, one of said flanges having an outwardly opening slot for receiving the shank of the fastening screw, whereas an auxiliary flange comprising the nut for the fastening screw is provided at and normally engages that side of the second flange that is turned away from the first flange, said auxiliary flange cooperating with the lining on the inner side of the clip body in such a way that it may bend away from said second flange through a certain angle about an axis that is located adjacent the transition between the annular clip body and the second flange so as to cause the fastening screw, that is threaded through a slot-like opening in the second flange into the nut, to tilt outwardly.
2. Description of the Prior Art
Such a pipe-clip is known from EP-A-0188649. Such pipe-clips are tightened, from a spread-open state, around the pipe to be fastened. When moving the flanges together the fastening screw, which has been initially screwed through the second flange into the nut of the auxiliary flange, will at first--under the pressure of the first flange onto the head of the screw--tilt outwardly and then--after the first flange has passed--tilt back resiliently and engage with its shank into the slot of the first flange.
With the pipe-clip according to EP-A-0188649 the auxiliary flange is formed of metal and provided with a hooked lip, that extends through an opening in the respective end of the annular clip body and is pressed against the inner side of the annular clip body due to the resilience of the lining. When applying the clip body around a pipe to be fastened the lip may, against the resilience of the lining, turn inwardly which allows the auxiliary flange with the fastening screw premounted therein to turn away from the second flange under the pressure of the first flange. As soon as the fastening screw is free to tilt back, the resilience of the lining will cause the lip and therefore the auxiliary flange with the fastening screw mounted therein to turn back into the fastening position.
SUMMARY OF THE INVENTION
The invention aims at providing a pipe-clip of the type described hereinabove, which is of a simpler construction and may be more easily assembled from its parts.
In accordance with the invention this aim is achieved in that the auxiliary flange, carrying the fastening nut, and the lining are formed of one strip of elastomeric material, a transverse slit being provided at the transition between the lining proper and the auxiliary flange, through which slit the second flange extends.
This construction implies that the portion of the strip that is functioning as an auxiliary flange is connected with the lining proper by continuing edge portions and that the auxiliary flange portion will normally lie against the second flange due to the resilience of the strip of elastomeric material.
Preferably another transverse slit is provided at the other end of the strip of elastomeric material, through which slit the first flange extends.
It is to be noted that FR-A-2 457 403 discloses a pipe-clip, comprising an annular clip body the ends of which are bent to flanges, which are to be pulled together by means of a fastening screw, said clip body being provided with a lining formed of a strip of elastomeric material, said lining strip having at one end a transverse slit through which the clip body extends. With this pipe-clip, however, there is no outwardly opening slot in one of the flanges, and there is neither an auxiliary flange carrying the nut for the fastening screw.
It should also be noted, that, although hereinabove mention is made of a clip body bent to a (complete) annulus, this does not necessarily mean, that the clip body consisting of one piece. The invention is also applicable to a clip body consisting o
REFERENCES:
patent: 3995795 (1976-12-01), Hogan
Brittain James R.
J. van Walraven B.V.
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