MECHANICAL COUPLING ANGLE (PROFILE) JOINT FOR METAL CONCAVE BEAMS

Abstract: A mechanical coupling angle joint for metal concave beams (profiles) (17, 18) characterised in that it consists of two identical parts of a metallic angle joint with a main body (1) and lid with grooves (5) and apertures (13) on the inside, wherein, on the edge of the main body, a screw (4) and two springs (11) are moving, displacing simultaneously and by both sides pellets (6) which move in a groove (5) ending in a slanted plane (7), the said pellets (6) reverse the direction of the screw (4) and push at the same time the two special teeth (8) which move, at a first step, diagonally out of the main body (1) of the mechanical angle, enter the apertures (19) of the two concave beams (17, 18) and tighten them to each other and, then, move in a parallel way with the profiles (17, 18), thus achieving clamping of the profiles (17, 18) at the angle of the frame, becoming an appurtance stabilizing and joining two concave beams (17, 18) powerfully at a 90 DEG angle aligning them simultaneously.

Description: Mechanical coupling angle (profile) joint for metal concave beams This invention relates to an angle joint for metal concave beams (profiles) This joint couples fixedly two parts of identical concave beams (profiles) at an angle Aluminium or iron profiles can be coupled to this joint for producing paralle lepipedal 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 characterised by weak traction and short clamping course resulting in re-clamping failure in any case the frame moves diagonally when conveyed thus making it ineffective on account of the joint The invention as it is set forth in this description and the drawings, seeks and achieves the solution of 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 1 The main body of the angle joint is uniform and, therefore, more resistant 2 Mechanism with a long clamping course and capability of reclamping 3 Automatic function of the mechanism by clamping a screw without any other procedure 4 Mechanism allowing for the operation of parallel clamping forces in respect with the profiles of the frame, even though the screw moves at a 45° angie on the axis of the profi es' angle 5 Very fast assembling and increasement of productivity 6 Entering of the angle into the profile cavities without any procedure 7 Automatic'alignment of profiles 8 Powerful clamping and capability of re-clamping due to large clamping course of tooth over 5 millimeter 9 Permanent retaining of profiles from side-shifting 10 Automatic dismantling of profiles achieved just by loosening a screw 11 Securing a correct result even from not-skilled persons 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 The invention will become obvious to those skilled in the present art with reference to the accompanying drawings which illustrate, in a way of example, some of the preferred industrial embodiments of the invention, wherein Figure 1 shows in front section view the inner side of the main body of the angle joint and arrangement of the other components Figure 2 shows in a prospective view the inner side of the main body of the angle joint without its components Figure 3 shows perspectively the special tooth Figure 4 shows a transversal section of the two pieces of the main body of the joint, in distance, before the assembly Figure 5 shows a transversal section of the two main body pieces assembled and the tolerance (25) of the rivets (14) Figure 6 shows a prospective section of the mam body set in the angle formed by two concave beams (profiles) Figure 7 shows perspectively the external view of the angle joint With reference to a selected typical example of an industrial embodiment of the invention a numbering of the mam 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 Description of main parts and components 2 Socket 3 Nut 4 Screw 5 Movement groove 6 Pellets 7 Slanted plane of groove end 8 Teeth 9 Slanted plane of main body and lid 10 Circular contacting surface 11 Pressure spring 12 Washer 13 Aperture for entering of rivets 14 Rivets 15 Lid 16 Socket to receive shavings 17 Profile (horizontal cut at 45° angle) 18 Profile (vertical, cut at 45° angle) 19 Aperture of profiles (17) and (18) for tooth 20 Aperture of profile for screw 21 Slanted plane of tooth 22 Slanted plane of tooth, rear 23 Semicircular tooth end rear 24 Socket for screw 25 Tolerance of rivets 1 -2 mm According to the preferred typical embodiment of the invention the angle joint of aluminium frames consists of the main body (1 ), having a socket (2) for a nut (3) wherein the screw (4) is screwed The main body (1 ) has a groove (5) as shown in Fig 1 , wherein pellets (6) are moving The groove end (5) comes to a slanted plane (7) which coincides with the corresponding slanted plane (21 ) of the special tooth (8) having a circular contacting surface (10) in respect with the apertures (19) of the profiles (17) and (18) At the end of tooth (8) and in a corresponding socket o1 the main body (1), there is a pressure spring (11) with washer (12) On top of the main body (1 ), the lid (15) is placed, supported by rivets (14) The angle joint is assembled and operates as follows For the assembling of a frame, e g a window made of aluminium concave beam (profile), four mechanical cou ling angle joints are needed The ends of the frame profiles are cut at a 45° angle and each end bears an aperture (19) and an aperture (20) at a respective position The mechanical angle joint is placed directly within the inner cavity of the profiles (17) and (18) without any other procedure With a corresponding key the screw (4) is turned and automatically a perfect and powerful junction of the profiles at the angles of the window frame is achieved. In detail this is achieved as follows: The screw (4) pushes simultaneously the two sets of pellets (6), whereas the last pellet of each set presses and pushes the special tooth (8), the slanted plane (21) of which meets the slanted plane (9) of the main body (1) and the lid (15), and is moving diagonally outward contacting the aperture (19) of the profiles (17) and (18). Afterwards the special tooth (8) moves parallely to the profile During this stage the pellets (6) tend to fold between each other and push the main body (1) as well as the lid (15) from the inside towards the outside, simultaneously pushing the inner sides of the inner cavity of the profiles from the inside towards the outside aligning them completely. The main body (1) and the lid (15) can open in width due to a 1 or 2 millimeter tolerance (25) of the rivets (14) (Fig. 5). The teeth (8) continue to move, independent from the side opening of the mechanical angle, pushing the profiles (17) and (18) towards the acme of the angle and a perfect, powerful union and assembling of the profiles is achieved, even from not-skilled persons. In case of dismantling, the screw (4) is turned reversely whereupon the springs (11) push the special teeth (8), which due to the slanted planes (21) and (22) move diagonally and towards the inside, and immediate dismantling of the profiles is achieved It must be considered that the object of the invention is not restricted by the above example. The accomplishment of the invention is possible by means of other manufacturing ways, methods, components and mechanisms which are within the scope of the present description. It must be noted that the present description of the invention has been made with reference to only a few typical examples of embodiment Thus any amendment or modification in respect with the shape, form, dimensions, the utilised materials and components for the manufacture and assm ly thereof, must be considered as included within the purposes and the scope of the present invention

Claims: CLAIMS 1. A mechanical coupling angle joint for metal concave beams (profiles) characterised in that it consists of two identical parts of a metallic angle joint with a main body and lid with grooves and apertures on the inside, wherein, on the edge of the main body, a screw and two springs are moving, displacing simultaneously and by both sides pellets which move in a groove ending in a slanted plane the said pellets reverse the direction of the screw and push at the same time the two special teeth which move at a first step, diagonally out of the main body of the mechanical angle, enter the apertures of the two concave beams and tighten them to each other and then move in a parallel way with the profiles thus achieving clamping of the profiles at the angle of the frame, becoming an appurtance stabilizing and joining two concave beams powerfully at an 90° angle aligning them simultaneously 2 A mechanism to transfer forward movement to both sides of an angle appurtance for pushing two tooth-elements outward from two apertures of the angle, characterized in that the pushing is operated by a screw placed in the angle of the appurtance and a number of pellets moving within a groove, which press the two teeth by both sides and which move outward from the two apertures of the angle

Inventors: MASTROGIANNIS SPYROS, POLYZOPOULOS ATHANASIOS, MASTROGIANNIS, SPYROS, POLYZOPOULOS, ATHANASIOS
Applicants: MASTROGIANNIS SPYROS, POLYZOPOULOS ATHANASIOS, MASTROGIANNIS, SPYROS, POLYZOPOULOS, ATHANASIOS
Application year: 1997
Main classification: E06B3
IPC codes: E04B1, E06B3