Supports – Brackets – Specially mounted or attached
Reexamination Certificate
2002-02-13
2004-01-13
Baxter, Gwendolyn (Department: 3632)
Supports
Brackets
Specially mounted or attached
C248S304000, C428S343000
Reexamination Certificate
active
06676093
ABSTRACT:
The invention relates to an at least two-part hook, in particular a wall hook, which can be reversibly adhesively bonded by means of an adhesive strip whose bond can be broken by being pulled, and can be reused, if necessary with a new such adhesive strip.
BACKGROUND OF THE INVENTION
Adhesive strips whose bond can be broken by being pulled are on the market as “tesa Power Strips” from Beiersdorf AG and are also described by numerous patents, such as DE 33 31 016 B1, DE 42 22 849 B1, DE 43 39 604 B1, DE 44 28 587 B1 and DE 44 31 914 B1. In addition, however, U.S. Pat. No. 4,024,312, WO92/11332 A1, WO92/11333 A1 and WO95/06691 A1 describe adhesive strips of this type. Such adhesive strips are pulled out of the adhesive bond in the direction of the adhesive joint, in a similar way to opening a preserving jar.
For example, U.S. Pat. No. 4,024,312 describes a self-adhesive strip having an extensible and elastic carrier made of a block copolymer, in particular for applications in the medical area, where pain-free removal from the skin is desired.
In addition, DE 33 31 016 A1 describes an adhesive film for redetachable adhesive bonds, which permit an adhesive bond produced with it to be detached by pulling on the adhesive film in the direction of the bonding plane. Using such adhesive film, high adhesion forces and shear strengths can be achieved, and adhesive bonds can be detached again without further aids, comparable with the opening of a preserving jar, in a way similar to the way in which the rubber seal there is pulled out of the sealing joint by the tab.
Furthermore, DE 37 14 453 C1 describes a practice explosive body which can be removed again from practice objects non-destructively and which is reversibly fixed with such an adhesive film.
In addition, WO 92/11333 A1 describes, inter alia, adhesive films for corresponding applications, the adhesive films used exhibiting low elasticity and, at the same time, high expansion.
DE 42 22 849 C1 likewise describes a strip of an adhesive film of this type having a specially configured tab.
In addition, hooks or similar fixing systems for use together with such adhesive strips can be obtained on the market as “tesa Power Strips with hook” or else as “tesa Power Strips system hooks” from Beiersdorf AG.
Finally, DE 42 33 872 C2, DE 195 11 288 B1 and WO 94/21157 A1 describe redetachable self-adhesive hooks, which are likewise equipped with such adhesive films and are therefore redetachable.
For example, DE 196 41 118 C1 describes a redetachable, self-adhesive hook or fastening device of that sort having a base plate, defined by a strip of a double-sided adhesive film which is one such that the adhesive bond achieved with it can be detached again by means of pulling and stretching. On its front side, the film bears the base plate and, by the rear side, is adhesively bonded to a sub-base, separation of the adhesively bonded base plate of the fixing device, together with the strip, from the sub-base being carried out by rotating the base plate substantially in the plane of the bond.
DE 197 35 228 A1 discloses a hook comprising a one-part hook body and a one-part base plate, the base plate to be adhesively bonded with an adhesive strip whose bond can be broken by being pulled is designed in such a way that a tab of the adhesive strip projects beyond the base plate, the hook body being designed in such a way that it covers the base plate and also the tab projecting beyond the latter.
Present on the base plate is a molding in which at least one spring element is fixed and which has a protrusion in the collar area. Formed in the hook body are guides, in which the protrusion of the molding of the base plate is guided in such a way that
the hook body and the base plate are nondetachably connected to each other,
the hook body is detached by means of a movement parallel to the base plate from the basic position, in which the hook body is anchored to the base plate and, at the same time, covers the base plate and tab of the adhesive strip, and is displaced parallel to the base plate and
the hook body can be rotated over the spring element by up to 90°, so that
access to the tab is possible.
DE 197 35 229 A1 shows a hook comprising a one-part hook body and at least one one-part hinge element and a one-part base plate, the base plate for adhesive bonding with an adhesive strip whose bond can be broken by being pulled being designed in such a way that a tab of the adhesive strip projects beyond the base plate. The hinge element is designed in such a way that the tab located on the adhesive strip is covered. The hook body is designed in such a way that it covers the base plate and the hinge element, which are both arranged in one plane,
the base plate and the hinge element being connected to each other via a hinge, in particular a film hinge,
the hinge element and the hook body being connected to each other via a hinge, and
it being possible for the hook body, on the side adjoining the hinge element, to be lifted up from the basic position, in which the hook body is anchored on the base plate and, at the same time, covers the base plate and hinge element of the adhesive strip, and to be displaced by means of a movement parallel to the base plate, so that access to the tab is possible.
DE 197 35 234 A1 discloses a hook comprising a one-part hook body and a one-part base plate, the base plate for adhesive bonding with an adhesive strip whose bond can be broken by being pulled being designed in such a way that a tab of the adhesive strip projects beyond the base plate, the hook body being designed in such a way that it covers the base plate and also the tab projecting beyond the latter.
Integrally molded on the base plate are at least four widened portions, which are each located opposite one another in pairs and project laterally beyond the base plate. Formed in the hook body are guides in which the widened portions of the base plate are guided in such a way that
the hook body is detached by a movement parallel to the base plate from the basic position, in which the hook body is anchored on the base plate and, at the same time, covers the base plate and tab of the adhesive strip, and in the process is lifted off the sub-base, at least on one side, so that
access to the tab is possible,
the hook body and the base plate are nondetachably connected to each other.
However, the adhesive systems and hooks presented in the aforementioned documents also have a number of disadvantages:
None of the known hooks is constructed in two or more parts, using a cover. If one wishes to change the visual impression of the respectively bonded hook, one is forced to replace this hook by another which has the desired form. It is always necessary to acquire the corresponding hook.
It is further disadvantageous that the hook to be replaced has to be removed from the wall and then the new hook has to be adhesively bonded again, a procedure which is felt to be burdensome and time-consuming.
Even during production, the conventional hooks are affected by drawbacks. For example, in the case of extremely small changes in the hook design, the entire tool had hitherto to be made again.
It is an object of the invention to provide a remedy here, in particular to provide a hook or the like which does not have the disadvantages of the prior art, or at least not to the same extent, and which in particular can be used as a wall hook.
SUMMARY OF THE INVENTION
The at least two-part hook according to the invention is composed of an adapter plate which, for adhesive bonding with a strip of a double-sided adhesive film whose bond can be broken by being pulled, is designed in such a way that a tab of the adhesive strip projects beyond the adapter plate, and a hook body which is located on the adapter plate and which is placed on the adapter plate. A cover, which covers at least some sections of the adapter plate, is plugged onto said adapter plate.
DETAILED DESCRIPTION
In a first advantageous embodiment of the at least two-part hook, the cover covers the entire adapter plate and/or the tab of the
Franck Achim
Koop Norbert
Reiss-Schmidt Tobias
Baxter Gwendolyn
Norris & McLaughlin & Marcus
tesa AG
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