Joints and connections – Miter joint – Connector bridges inner or outer periphery
Patent
1998-03-20
2000-03-28
Browne, Lynne H.
Joints and connections
Miter joint
Connector bridges inner or outer periphery
403231, 403328, 403297, 745023, B25G 336
Patent
active
06042298&
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to an angle joint for metal concave beams (profiles).
BACKGROUND OF THE INVENTION
The joint with which the invention is concerned couples fixedly two parts of identical concave beams (profiles) at an angle. Aluminum or iron profiles can be coupled to this joint for producing parallelepipedal items, such as door frames, window frames etc.
Until today, no similar structure has been presented by the manufacturing technology of components for profile angle coupling. The existing technology is limited in using divided coupling angles which are characterized by weak traction and short clamping stretches resulting in failure case the frame move diagonally when handled thus making it ineffective on account of the joint.
The invention as set forth in this description and the drawings eliminates these significant disadvantages through a system which establishes a novel technical rule in the manufacturing technology of angle joints for frames.
The invention provides the following advantages: other procedure. respect to the profiles of the frame, even though the screw moves at a 45.degree. angle on the axis of the profiles' angle. complication. tooth stretch of over 5 millimeter.
Another object of the invention is to deal with strength, functional and life-duration problems of the invention, accomplishing various structural solutions which will be shown thoroughly in the following detailed description, wherein the already mentioned and further advantages of the present invention will be explained.
BRIEF DESCRIPTION OF THE DRAWING
The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing in which:
FIG. 1 shows a front sectionional view the interior of the inner side of the main body of the angle joint and the arrangement of the other components.
FIG. 2 is a prespective view of the inner side of the main body of the angle joint.
FIG. 3 is a perspective view of the special tooth.
FIG. 4 is a transverse section of the two pieces of the main body of the joint, before the assembly.
FIG. 5 is an elevational exploded view of the two main body pieces assembled (25) and the rivets.
FIG. 6 is a perspective section of the main body set in the angle formed by two hollow beams (profiles).
FIG. 7 shows perspectively the external view of the angle joint.
FIG. 8 is a view similar to FIG. 6 but showing the position in which the teeth are biased inwardly by the respective springs upon retraction of the screw.
FIG. 9 is a view of the interior of the angular body showing the grooves and recesses and with the teeth, balls and screw removed.
SPECIFIC DESCRIPTION
With reference to a selected typical example of an industrial embodiment of the invention, a numbering of the main parts of the object follows below in respect with corresponding numbering of these parts to the attached drawings, wherein these are represented at a typical descriptive illustration, with no climax, simply according to the size ratio between the parts.
Essentially the mechanical coupling for an angle joint between ends of a pair of hollow frame sections 17, 18, mitered at a 45.degree. angle, comprises an angular body 1 having arms extending into the respective frame sections at the ends which adjoin in the miter. A socket 2 (see FIG. 2 and FIG. 9), is formed in the two portions which form the body 1 when they are joined by the rivets 14 and receives the nut 3 into which a screw is threaded so that the screw extends diagonally in the body at a junction between the arms. Within the body there are respective grooves 5 leading from this junction into the respective arms and opening at the respective arm toward the junction at the end of the groove distal from the screw. A row of balls or pellets 6 is displaceable along each groove to change the direction of the force transmitted to the balls of the screw from a direction away from the screw to a direction toward the screw (see especially FIGS. 1, 6 and 8).
A
REFERENCES:
patent: 4669324 (1987-06-01), DeMey et al.
patent: 4880219 (1989-11-01), Nemirovsky
Mastrogiannis Spyros
Polyzopoulos Athanasios
Bochna David E.
Browne Lynne H.
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