Buckles – buttons – clasps – etc. – Paper fastener – Resiliently biased
Patent
1994-09-07
1996-01-02
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Paper fastener
Resiliently biased
24 67R, 24 673, B42F 300
Patent
active
054796822
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a U-shaped clamp for inserting objects between it's legs.
BACKGROUND OF THE INVENTION
Such a clamp is disclosed in U.S. Pat. No. 4,241,477. The clamp shown therein is made from a relatively rigid thick material and the lip is from a resilient relatively thin material. In the description it is indicated that those parts might be integrally formed. Engagement of the lip to the related part of the leg is realized only by resilient deformation of this lip which snaps behind a protruding part of the related leg. This engagement can be realized by engaging a tab of the resilient lip. However, such engagement may result in damage of the nails or finger of the user engaging the tab protruding from the paper clip in the position of use and a relatively considerable force will be required to disengage the resilient lip.
SUMMARY OF THE INVENTION
The object of the present invention is to avoid the above-mentioned disadvantages.
According to the present invention the U-shaped body is preferably elastically deformable such that the distance between the free locking end of the lip and the part of the one leg which can engage with it can be increased. That is to say that unlocking of the lockable lip is effected by bending the clamp, as a result of which the distance between the free end of the lip and the part of the one leg engaging therewith is increased such that unlocking is effected. Either the web of the U-shaped body of the one leg is provided with a weakened section in order to facilitate the bending. In addition, the bending may be facilitated by fitting a projection to the underside of the other leg. Consequently, the clamp has only to be pressed at both ends, which causes a bulge and moves the lockable lip out of the locked position if it is on a flat surface.
According to an advantageous embodiment of the invention, the lip forms the partial outer boundary of the one leg of the U-shaped body. Thus it is possible significantly to simplify the operation of the lockable lip while, on the other hand, the width of the clamp can be limited further.
Locking may be achieved by all methods known in the state of the art, but according to a preferred embodiment of the invention, the locking end of the lip is provided with a recessed part and the part of the one leg which can engage with it is provided with an oppositely recessed part.
Moreover, interacting fastening means, such as a tenon/mortise assembly, may be fitted on the lockable lip, on the one hand, and on the other leg, on the other hand.
The clamp described above may be provided with suspension means in order not only to fix in the clamp one or more of the objects inserted in the clamp, but also to suspend them by means of the suspension means mentioned .
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be explained in detail below with reference to the illustrative embodiment shown in the drawing, in which:
FIG. 1 shows a perspective view of the clamp according to the invention in the closed position;
FIG. 2 shows a side view of the clamp according to the invention;
FIG. 3 shows a side view according to FIG. 2, with the clamp in the open position;
FIG. 4 shows a front view of the clamp according to the invention, along the line IV--IV in FIG. 2;
FIG. 5 shows a further embodiment of the clamp according to the invention in the closed position; and
FIG. 6 shows the clamp according to FIG. 5 in the open position.
DETAILED DESCRIPTION OF THE INVENTION
The clamp according to the invention comprises a U-shaped body 1 having a web 7, a leg 2 and a further leg 3. A U-shaped insert is delimited therebetween for inserting, for example, flat paper 15. Of course, it is also possible to insert other objects in the clamp described here. The web of the U forms the stop for the objects to be inserted.
The one leg 2 is provided with a lockable lip 4, the hinge centre line of which is essentially at right angles to the longitudinal centre line of the web 7. The lockable lip 4 is provided with a free end ha
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patent: 531312 (1894-12-01), Heysinger
patent: 1869032 (1932-07-01), Van Buren
patent: 2740897 (1956-04-01), Fairbank
patent: 3307558 (1967-03-01), Benjamin
patent: 3310901 (1967-03-01), Sarkisian
patent: 4241477 (1980-12-01), Freedom et al.
patent: 4525899 (1985-07-01), Carroll
Cave-Jansen Johanna M. A. T.
Hendrikx Remigius V.
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