Supports – Mirror or picture type – Suspended
Patent
1985-01-14
1986-09-23
Ramirez, Ramon O.
Supports
Mirror or picture type
Suspended
40 10R, 40 17, 2482161, 2482173, 2482183, A47G 116
Patent
active
046131086
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an appliance for hanging objects, for instance pictures, on walls, especially gypsum wallboards, comprising a fixing part insertable in the wall and consisting of or comprising a preferably extremely thin plate adapted to be driven into the wall with its plane lying or oriented substantially horizontally, and a suspension part, for instance a hook, which is accessible from outside and adapted to receive the object to be hung.
STATE OF THE ART
A suspension appliance of the above-mentioned type is previously known from Swiss patent No. 497882 and German patent No. 483240. In these prior art devices, use is however made of single plates which are adapted to penetrate into the wall, which means that the plate and, hence, the entire appliance may easily be unintentionally extracted from the wall.
BRIEF DESCRIPTION OF THE INVENTIVE CONCEPT
The present invention aims at eliminating the above-mentioned drawback by providing a suspension appliance which will steadily remain in the wall when unintentionally actuated. According to the invention, this is achieved in that the appliance, in addition to said fixing plate, has at least one or suitably two tongues which are narrower than the plate and adapted to be driven into the wall concurrently with the plate, although at an angle which slightly deviates from the angle at which the plate is driven in.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing,
FIG. 1 is a perspective view of the suspension appliance according to the invention and
FIG. 2 is a cross-section of a portion of a gypsum wallboard to which said appliance has been secured.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION
In FIG. 1, there is shown a suspension appliance which comprises a fixing part generally designated 1 and a suspension part generally designated 2. In the illustrated Example, the suspension part 2 is in the form of a hook consisting of a substantially planar web 3 intended to bear on the wall to which the appliance is secured, and of a hook-forming portion 4 formed by bending the lower portion of a web 3. Both the web 3 and the hook portion 4 are here assumed to be made of thin sheet metal. A fixing plate 5 is formed integral with the web 3 and intended to be driven into the gypsum wallboard 6 in FIG. 2. More precisely, the plate 5 is bent at an angle to the web portion 3 along a bending line intimated at 7. In the illustrated embodiment, there are also provided on either side of the plate 5 two tongues 8, 8' which, like the plate 5, are formed integral with the web portion 3 by being bent along the lines 9, 9'. In its unactuated state shown in FIG. 1, the tongues 8 are bent at an angle of approximately 90.degree. to the plane of the web portion 3 while the plate 5 makes an angle with the web portion 3 that is slightly smaller than 90.degree., for instance 87.degree.-89.degree.. This means that the fixing plate and the tongues make between them a certain, small angle, for instance 1.degree.-3.degree., diverging from the bending lines 7, 9 towards the free ends of the plate and the tongues. Further, it should be noted (see FIG. 2) that both the plate 5 and the tongues 8, 8' at their free ends have bevelled surfaces 10 and 11, respectively, which terminate in an extremely fine tip at the extreme end of the plate and the tongue. More precisely, the plate 5 is bevelled such that the surface 10 is directed obliquely upwardly whereas the tongues 8 are bevelled such that the surfaces 11 are directed obliquely downwardly. The combination of these bevelled surfaces 10, 11 and the above-mentioned initially existing angular deviation of the plate 5 with respect to the tongues 8, 8' entail that the relatively narrow tongues will tend to move obliquely upwardly in the gypsum material while the plate 5 moves obliquely downwardly when the fixing part 1 is driven into the gypsum wallboard, as shown in FIG. 2. In FIG. 2, the angle between the plate and the tongues is slightly exaggerated. However, even a very sm
REFERENCES:
patent: 514222 (1894-02-01), Hall
patent: 841550 (1907-01-01), Leonard
patent: 1616957 (1927-02-01), Honigbaum
patent: 1999575 (1935-04-01), Reuter et al.
patent: 2040750 (1936-05-01), Long
patent: 3305984 (1967-02-01), Borcuk
patent: 4040149 (1977-08-01), Einhorn
patent: 4560126 (1985-12-01), Judkins et al.
Sundstrom Fred
Sundstrom Kent
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