Joints and connections – Interfitted members – Enlarged head in complementary recess – e.g. – dovetail – etc.
Patent
1994-07-21
1996-11-05
Knight, Anthony
Joints and connections
Interfitted members
Enlarged head in complementary recess, e.g., dovetail, etc.
52 71, 525821, 525891, 525922, 525924, 74462, 160135, 403119, 403364, A47G 500, F16C 1100
Patent
active
055709710
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a national phase of PCT/DE93/00043 filed 20 Jan. 1993 and based, in turn, upon German national application G92 00 642.6 filed 21 Jun. 1992, under the International Convention.
FIELD OF THE INVENTION
The invention relates to a connection between components, particularly for profiled rods, gears or the like, which roll off each other rotatively and thereby meshingly engage in the manner of gears at their circumference by means of alternately arranged, identically profiled tongues and grooves and which are coupled by transversal interlocking against unwanted radial disengagement, whereby the tongues and grooves are relatively displaceable about circumferentially parallel longitudinal axes.
BACKGROUND OF THE INVENTION
A connection with the above-mentioned features is known from EP-A-0 109 466. The known components are profiled rods with a substantially D-shaped cross section, which are toothed at their curvatures and are relatively displaceable about circumferentially parallel longitudinal axes and which are held together by clamping parts. Without these special clamping parts the profiled rods would not rest against each other during normal use, since their gear-like circumferential configuration does not insure against radial displacement away from each other.
A connection of components with interengaging undercuts is known from a frame of divider walls described in DE-OS 25 41 209. The components are profiled rods with an arrow-cross shaped cross section of the tongues and grooves, so that an arrow-cross shaped tongue can be introduced with its arrow-cross head into a groove having an arrow-cross shaped cross section. The relative position of two profiled rods connected this way can not be changed, if the play caused by tolerances is disregarded. The cross section of such a profiled rod is essentially square.
A generally known connection of profiled rods with square or rectangular cross sections is designed so that the neighboring profiled rods are interconnected by hinges. In order to fasten the hinges longitudinal grooves existing at the outer periphery of the rod and wherein screw fastening elements can be affixed are involved. By means of these hinges the profiled rods and thereby the wall or divider elements built with such profiled rods can be arranged at an angle to each other, which for instance is required when erecting exhibition stands or production spaces and separating them from each other. However the hinges involve a certain constructive effort and also considerable time is required for their mounting on the profiled rods. Furthermore the hinges are provided with a tilting angle of only 90.degree. in order to allow for higher loads. As a result a change in the arrangement of wall elements can not be easily made, when a tilt angle of over 90.degree. is required. In this case the hinge must be rebuilt. Besides such walls are not optically impermeable.
OBJECT OF THE INVENTION
By contrast it is the object of the invention to develop a connection of the aforementioned kind in such a manner that its components can have a pivoting angle, or can perform rotation up to 360.degree..
SUMMARY OF THE INVENTION
This object is achieved due to the fact that unwanted radial disengagement of the components is prevented by the tongues and grooves, in that they interengage with their undercuts while rolling off each other.
It is important for the invention that the relative movements of the components be possible, without having to give up their transversal interlocking. During all movements of the components about the circumferentially parallel axes, the tongues and grooves remain engaged. This engagement is designed so that during the relative movements of the components the tongues and grooves mesh in the manner of gears. However the difference is that constant transverse interlocking is insured. This transversal interlocking is of great importance for the components and for the structures being built therewith, because they render super
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Pies Gerrit
Rixen Wolfgang
Chop Andrea
Dubno Herbert
Knight Anthony
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