Joints and connections – Split end with laterally movable opposed portions – With separate force-applying means
Patent
1983-08-19
1986-10-14
Husar, Cornelius J.
Joints and connections
Split end with laterally movable opposed portions
With separate force-applying means
403292, 403297, 403381, 52582, 24498, F16B 224
Patent
active
046169512
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a coupling for interconnecting two elements such as building elements, which are placed adjacent each other side by side. Such a coupling is frequently used in numerous places, e.g. in a house between walls, in furniture, in beams.
In the German Offenlegungsschrift DE-OS-2 139 750 one approach to such a coupling is shown. This coupling maintains the walls in line with each other but cannot withstand substantial forces tending to separate the element.
In the German Offenlegungsschrift DE-OS-2 403 272 there is shown a coupling interconnecting two profile beams. The coupling is introduced inside the beams and exerts a pressure outwardly in order to generate a friction force locking the two beam elements together.
The object of the present invention is to provide an improved coupling between two colinear elements which coupling can withstand substantial separating forces.
SUMMARY OF THE INVENTION
Thus, the invention provides a coupling for interconnecting two elements along a connection line. The coupling comprises a spring member adapted to engage a profile member of each element to be interconnected. Each profile member is attached to or is an integral portion of the corresponding element and has a substantially L-shaped opening or recess, the first leg portion of which extending perpendicular to the connection line and the second leg portion of which extending along the connection line and having a small angle relative the connection line. The spring member is hat-shaped, i.e. each edge portion includes a first portion being perpendicular to the base surface of the spring member and a second portion being substantially parallel to but offset in relation to the base surface. The first and the second portions of the spring member are adapted to be received in the first leg portion of the L-shaped opening of the profile member. A screw or the like is adapted to bias the base surface of the spring member into a curved shape whereupon the rim of the second portion of the spring element being firmly pressed against a back surface of the first leg portion of the profile member.
Preferably, the angle between the first and the second leg portion of the profile member is about 70.degree.-80.degree. forming an apex therebetween.
The coupling can advantageously comprise two spring members symmetrically arranged on each sides of the connection center line.
Other objects and advantages of the present invention will become evident from the following description of several embodiments of the invention referring to the appended drawings, wherein:
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is an exploded side cross-sectional view showing the principles of the invention;
FIGS. 2 and 3 are enlarged cross-sectional views of the edge portion of the spring member of FIG. 1;
FIGS. 4 and 5 are cross-sectional side views of a second embodiment of the invention comprising two spring members;
FIG. 6 is a perspective view of the spring member;
FIGS. 7-10 are partial cross-sectional views of the edge portion of the spring member;
FIG. 11 is a perspective view of the profile member of FIG. 4;
FIG. 12 is a partial perspective view of a second embodiment of the profile member;
FIG. 13 is a third embodiment of the profile member;
FIG. 14 is a cross-sectional view of the profile member of FIG. 13;
FIG. 15 is a cross-sectional view similar to FIG. 13 of a fourth embodiment of the profile memger;
FIGS. 16-19 are cross-sectional views of a fifth, sixth, seventh and eighth embodiment of the profile member;
FIG. 20 is a perspective view of a multidirectional coupling according to the invention;
FIG. 21 is a cross-sectional view of a tubular coupling according to the invention;
FIG. 22 is a longitudinal sectional view taken along the line A--A of FIG. 21; and
FIGS. 23 and 24 are a plan view and side view of the spring member of FIG. 21. FIGS. 25a-d shows different types of screws.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIG. 1 the principles according to the invention are schem
REFERENCES:
patent: 2339865 (1944-01-01), Larmour
patent: 2579011 (1951-12-01), Pieper
patent: 2863185 (1958-12-01), Riedi
patent: 2933167 (1960-04-01), Keller
Fischetti Joseph A.
Husar Cornelius J.
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