Buckles – buttons – clasps – etc. – Clasp – clip – support-clamp – or required component thereof – Having either discrete flaccid or thin – nonbiasing,...
Patent
1998-01-05
2000-05-16
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Clasp, clip, support-clamp, or required component thereof
Having either discrete flaccid or thin, nonbiasing,...
24543, 24587, B65D 3300, G09F 1500
Patent
active
060618825
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
The invention concerns a clamping device for sheet products and an associated holding device.
A combined clamping/holding device is known from the DE 33 34 092 C2. There, it is described as a holding frame for a picture or similar planar objects and consists of two holding parts and a spring part. The two holding parts can be pivoted with respect to each other and are made of a comparably rigid, extruded synthetic material, one of the holding parts having a holding portion which is pressed against the planar object and the other holding part being beneath it by the spring part for clampingly holding the planar object. The spring part is integrally formed with the two holding parts by extruding and is made of a softer material than that of the two holding parts.
A holding frame of the type mentioned above has proven its worth in principle. However, the necessity to use different materials is a disadvantage.
Accordingly, it is an object of the invention to design a holding frame of the type mentioned above that it can be made of a material of one quality and the production is not limited to extruding (extrusion molding).
The invention is based on the realization that this object can be achieved by a constructive modification of the known holding frame.
Accordingly, the invention in its most general embodiment concerns a clamping device for sheet products having pivoting bearing (Schwenklager), and part, being essentially resistant to bending can be transferred from a stable first position (clamping position) to a stable second position (release position) under parallel biasing of the bow or from the release position to the clamping position by canceling the bias of the bow, through joints at its ends.
Such a clamping device can be manufactured as discrete component of any length and size.
If, according to an embodiment, the bow and the tilting part are joined with material-fit (materialschlussig), then the clamping device can be made simply and inexpensively of a synthetic material as injection molded part.
The clamping device is pushed with the holding part onto a plate, for example. By lifting the bow or the tilting part, a distance between the tilting part and the holding part is created for inserting a picture, for example. In lifting the bow or the tilting part, the bow is biased. If the bow or the tilting part is released before the tilting part has reached its stable second position (release position), the bias causes an automatic return of the bow (with the connected tilting part), the inserted picture being clamped and fixed between the tilting part and the holding part.
The constructive design with two stable positions (clamping position, release position) has the advantage that the clamping device also may be brought into a static (open) state. A slight touch on the bow in the direction towards the holding part causes the bow with the tilting part to snap back without great expenditure of force.
The pivoting bearing and/or the joints of the tilting part can be formed in different ways. According to an embodiment, they are formed by areas being weakened with respect to adjacent portions, that is having a smaller thickness of material.
Following the case of application mentioned above, the bow is L-shaped, for example, and in the clamping position the tilting part extends essentially parallel to the bow.
The path of pivoting of the clamping part and the bow are different because of the relative resistance to bending of the clamping part and its pivoting about the joints at the ends in relation to the bow being essentially elastic and the pivoting thereof about the pivoting bearing in the area of connection to the holding part.
About that, the following description of the figures will give further information.
According to another embodiment, the tilting part is formed with a portion projecting towards the holding part for holding the sheet product clampingly between itself and the holding part.
However, this is not necessary, because the clamping device also may serve for receiving a pr
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A. Earley John F.
A. Earley III John F.
Padis Preisauszeichnung + Display Systeme GmbH & Co. Vertriebs-K
Sakran Victor N.
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