Card – picture – or sign exhibiting – Illuminated sign
Patent
1992-05-14
1994-10-18
Green, Brian K.
Card, picture, or sign exhibiting
Illuminated sign
40572, 40575, 160351, 403388, G09F 1300
Patent
active
053556038
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a fastening system for fastening boards in general, and particularly to the application of a fastening system of the invention to fastening a certain type of an illuminated advertising sign. The invention further relates to an illuminated advertising sign element that can be fastened by means of a fastening system of the invention.
The invention relates to boards having a fastenable edge fitted with a fastening profile having a substantially H-shaped cross-section. An object of the invention is to provide a fastening system whereby the boards fitted with such H-profiles are fastenable in a relatively simple fashion to a frame structure and removable therefrom e.g. for repair, maintenance or like activities. Another object is to provide a fastening system whereby the angular position of boards to be fastened relative to the fastening point in a frame structure is adjustable whenever necessary.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a fastening system of the invention.
FIG. 2 shows a second embodiment of a fastening element for use in the fastening system of FIG. 1.
FIG. 3 shows a frame structure to which a fastening system of the invention is applicable.
FIG. 4 shows the frame structure of FIG. 3 fitted with boards mounted by means of the fastening system of FIG. 1.
FIG. 5 shows a detail of a board element for use in the application of FIG. 4 in the direction of arrows A-A.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S)
Referring to FIG. 1, a fastening system of the invention comprises a fastening profile 8, mounted on the edges of boards 15, 16 to be fastened and having a substantially H-shaped cross-section, as well as a locking profile 9 having a substantially C-shaped cross-section. A fastening system of the invention further comprises the use of a tubular member 2, which is a component of a frame structure and against which said H-profiles to be fastened are laid by means of a locking profile 9. According to FIG. 1, the fastening of boards 15, 16 is affected in a manner that in a groove between the legs 8b of H-profile 8 extending away from the board is positioned one leg 9a of C-profile 9, said C-profile being preferably pre-secured to tubular member 2 by means of fastening elements 10, such as screws, in a manner that said positioning of leg 9a in said groove is possible. This is followed by locking C-profile 9 in position in a manner that H-profile 8 is locked as a result of friction between said leg 9a of C-profile 9 and said frame component 2. In the case of FIG. 1, said tubular member 2 carries on either side thereof boards 15, 16 fitted with H-profiles 8. Naturally, this fastening system can be applied to fastening just a single board, whereby the other, free leg of C-profile 9 settles directly against tubular member 2. In a fastening system shown in FIG. 1, the angular position of H-profiles 8 of boards 15, 16 to be fastened relative to the plane defined by the opposite tubular members 2 can be changed by changing the relative dimensions of a groove between legs 8b of the H-profile and those of leg 9a of the C-profile. For example, by narrowing said groove the angular position can be decreased and by thinning said leg 9a the angular position can be increased. Preferably, the angular position is appr. 35.degree. C. The tubular member 2 is preferably circular in cross-section, as shown in FIG. 1, but it can also in the shape of a pipe having any desired cross-sectional surface, such as for example in the shape of an ellipse or in the shape of a semi-circle or in the shape of a square pipe or some other curved-surface or polygonal pipe. The shape of a pipe is not essential in the invention but the size of a pipe must be selected in the embodiment of FIG. 1 in a manner that the contact point between said pipe and H-profile will be located within the area between the inner surface of leg 9a of C-profile 9 and the apex of the inner leg 8a of H-profile 8 facing towards pipe 2. When using a circular pipe, the diameter of p
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patent: 3713237 (1973-01-01), Thomson et al.
patent: 3984931 (1976-10-01), Belokin, Jr.
patent: 4276706 (1981-07-01), Scott
patent: 4436135 (1984-03-01), Ytter
Green Brian K.
Viismainos KY
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