Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Headed fastener element with securing means and biasing spring
Patent
1996-11-04
1998-07-14
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Headed fastener element with securing means and biasing spring
411552, 411553, F16B 2100
Patent
active
057794227
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a whole constituted by two elements assembled to each other and by a device to permit their assembling. The said device comprises a stud secured to one of the said elements by at least one radial lug provided for this purpose. The said element is provided with a passage for the said lug and, on its outer face, with a recess intended to receive said lug, in which the lug is maintained by means of a return resilient device bearing on the one hand on the said stud and, on the other hand, at least indirectly, on the said element. The assembly device comprises a sleeve, the bottom of which is provided with an opening to permit the passage of the lug of the stud, the return resilient device being located in the said sleeve and bearing on the one hand on the bottom thereof and on the other hand on the stud. The said sleeve is engaged in the two elements to be assembled, in which it can slide longitudinally.
2. Description of the Related Art
Such wholes are known per se, one of them, for instance, being disclosed in French Patent No. 2.062.083.
SUMMARY OF THE INVENTION
the object of the present invention is to improve such a whole while adding thereto means permitting modification of the force of the return resilient device and, consequently, the pressure which the two assembled elements exert one on each other.
Said object is achieved by reason of the fact that the sleeve of the assembly device is provided with a threaded portion on which is screwed a tightening ring, bearing on the second of the said elements to be assembled, in such a way that the force of the return device and, consequently, the pressure exerted by one of the elements of the assembly on the other one, is variable in function of the axial position of the said sleeve, which position is adjustable while screwing more or less the said ring.
BRIEF DESCRIPTION OF THE DRAWING
The drawing shows, by way of example, one embodiment constructed in accordance with the object of the invention:
FIG. 1 is a plan view of a secateur for use in gardening.
FIG. 2 is a plan view of a secateur represented in a position, turned over with respect to the position of FIG. 1.
FIG. 3 is an axial sectional view of the assembly device for the two jaws of the secateur, and
FIG. 4 is a sectional view taken along the line IV--IV of FIG. 3.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The secateur represented in the form of a cutter comprises two jaws 1 and 2, articulated with respect to each other about point 3, and which are each provided with handle portions 4 and 5 respectively.
The articulation of the two jaws 1 and 2, one with respect to the other, is realized by a stud 6 terminating, at one of its extremities, by a portion 6a of smaller diameter provided with two diametrically opposed lugs 6b and, at the other extremity, by a head 6c of a slightly larger diameter.
The stud 6 is engaged in a sleeve 7 the bottom 7a of which is provided with an elongated aperture 8 intended to permit the passage of the two lugs 6b. A coil spring 9 is located in the sleeve 7, interposed between said sleeve and the stud 6, and bearing on the one hand on the bottom 7a of the sleeve and on the other hand on the head 6c of the stud. The sleeve 7, provided with the stud 6 and with the spring 9, is engaged in two passages 10 and 11 provided in the jaws 1 and 2, respectively, in which it is able to slide axially. A pin 12 carried by a head 7b of the sleeve 7, the axis of which is parallel to the axis of the sleeve, is engaged in a blind hole 13 of the jaw 2, thus preventing the sleeve 7 from rotating on itself with respect to the said jaw.
The jaw 1 carries, forced in a recess 14 it presents to this effect, a ring 15 provided with an elongated opening 16 permitting the passage of the lugs 6b of the stud 6 and which is provided with two recesses 17 situated on a diameter which is perpendicular to the opening 16, in which are partially engaged the lugs 6b under the effect of the return force exerted by the sp
REFERENCES:
patent: 2465548 (1949-03-01), Michael
patent: 5370488 (1994-12-01), Sykes
patent: 5688093 (1997-11-01), Bowers
patent: 5690460 (1997-11-01), Attanasio
Etablissements Sarran S.A.
Petignat Maurice
Wilson Neill R.
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