Joints and connections – Rigid angle coupling – e.g. – elbow or u – etc.
Patent
1985-01-04
1987-01-13
Husar, Cornelius J.
Joints and connections
Rigid angle coupling, e.g., elbow or u, etc.
403292, 403295, 403298, 403403, 312140, 285424, F16B 700
Patent
active
046361057
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a corner piece for frames intended for displaying or advertising purposes, for instance of the type where a sheet of cardboard or other rigid material can be inserted from one side of the frame. Such frames are generally used in shops and other places of sale to give information about goods, prices, news, etc. The frames may either be placed on a counter with the aid of a foot or be hung up in wires. It is also possible to interconnect several frames by means of oblong intermediate pieces which also permit angular interconnection of the frames.
DESCRIPTION OF RELATED ART
It is previously known to manufacture frames of this type by means of extruded profiles which are available in meter-length and cut to the desired length in order to constitute the sides of the frames. The profiles are interconnected by means of corner pieces so as to form a complete frame.
Frames for advertising and information purposes often are used only once, e.g. in fairs, exhibitions and the like. It is therefore imperative that the frames be cheap. In this respect extruded profiles constitute an inexpensive element manufactured by means of simple tools while, on the other hand, the frame corners are more expensive because, for one thing, tools with mobile parts are required and also because the detail proper will become more homogeneous and requires more material.
SUMMARY OF THE INVENTION
This invention permits making a cheap frame because the corner pieces consist of two corner parts and the tool required for the corner parts can be made up very simply in the form of two stationary tool halves and the corner parts may be formed of a small amount of material. Moreover, it is easy to assemble and disassemble the frames and they may be used repeatedly in various places without requiring much work.
According to the invention a corner piece for frames is provided for joining together frame sides situated adjacent the corner piece, which sides are tubular or profile-shaped and adapted in their inner cavity to accommodate legs which are angularly disposed on the corner piece and interconnected by means of an intermediate part of the corner piece in that each leg consists of two parallel shanks and that each shank is shaped so as to be complementary to the cavity of the frame side profile engaging the respective shank so that the shank can be inserted guidingly and with a certain friction in the cavity of the frame side.
In a preferred embodiment of the invention the corner piece is composed of two identical corner parts interconnected by fastening means in such a way that the legs and intermediate part of the corner piece will have a first symmetry plane coinciding with the plane of the frame and also a second symmetry plane or bisector plane through the bisector to the angle between the corner piece legs, said second plane being perpendicular to the first symmetry plane.
In one embodiment of the invention the corner piece has two legs, the angle between the legs being right, i.e. 90.degree..
In another embodiment the corner piece has three legs disposed in T-fashion, two of which are aligned with one another while the third leg lies in the bisector plane and makes an angle of 90.degree. to each of said first-mentioned legs.
In an important embodiment the fastening means of the corner part comprises a cylindrical connection piece which is disposed at right angles to the first symmetry plane and situated in the bisector plane and the axial end of which consists of a supporting edge lying in the first symmetry plane and on one side of the bisector plane, a guide pin projecting above the first symmetry plane and at right angles thereto, while the connection piece has, under the first symmetry plane and on the other side of the bisector plane, a downwardly directed recess shaped so as to be complementary to the upwardly projecting guide pin so that the guide pin of one of the interfacing connection pieces will engage the recess of the other connection piece and vice versa when two
REFERENCES:
patent: 113869 (1871-04-01), Gaylord
patent: 2066227 (1936-12-01), Pieukauf et al.
patent: 2281220 (1942-04-01), Anderson
patent: 3218097 (1965-11-01), Bower et al.
patent: 3923326 (1975-12-01), Mez
patent: 3977800 (1976-08-01), Cassel
patent: 4099815 (1978-07-01), Cox et al.
patent: 4108520 (1978-08-01), Litchfield
patent: 4123094 (1978-10-01), Smitka
patent: 4205486 (1980-06-01), Guarnacci
patent: 4236846 (1980-12-01), Barton
patent: 4303289 (1981-12-01), Hardy
patent: 4344718 (1982-08-01), Taylor
patent: 4509778 (1985-04-01), Arnoldt
Husar Cornelius J.
Williams Todd G.
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