FI58199C - HOERFOG MELLAN DET OEVRE ELLER UNDRE STYCKET SAMT SIDOSTYCKET HOS EN DOERR- ELLER FOENSTERKARM - Google Patents

Description

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Ma lj '1Ί' UTLAGG NI NGSSKRI FT 0 ° I 77 C (4S) 'JU! "' ° '^ (51)» WE 06 B 1/06, J / M- FINLAND —FINLAND (21) PKeutHlwlwmii · —Ptt «Irtan * knl» t 791038 (22) Hakwnliptlvi — An «6knlng * dt (28.03 * 79 (23) AlknpUvi — Gittlfhttidag 28.03.79 (41) Tullut JulklMksI - BIMt offantllg

Patent and Registration Board (44) NthUvUCp ™, j. KUUL | foreign »« date - QD „

Patent- och reglsterttyrelMn 'AiwWon uttajd och uti.tkrifUn publlctrad 29 * 08.80 ^ (32) (33) (31) Requested «tuolkuut —- Buglrd prlorltet (71) Saastamoinen Yhtymä Oy, PO Box 263, 70101 Kuopio 10, Finland-Finland FI) *> "(72) Pentti Jormanainen, Kuopio, Finland-Finland (FI) (7 * 0 Berggren Oy Ah (5 * +) Angular connection between the upper or lower part of a door or window frame and the side part - Hömfog mellan det övre eller undre stycket samt sidostycket hos en dörr- eller fönsterkarm

The present invention relates to a corner joint between a top or bottom piece of a door or window frame and a side piece, the frame profile having a platform on the inside of the frame against which the door leaf or window frame comes and on which the frame profile is lower, the side piece being cut off a corresponding recess at the end of the lower body, the extent of which in the longitudinal direction of the upper or lower body is equal to the thickness of the lower part of the profile of the side piece, and in which the upper or lower body platform is further provided with a continuous notch, - to which the corresponding end of the side piece fits.

Such a joint is already known from Finnish patent publication 52 386. The main idea in this known solution is that the end of the side piece can be cut completely straight without other machining steps and that the frame can be assembled according to the desired handiness after the parts have been manufactured. According to the patent, the notch forming the extension of the recess is made, for example, with an oscillating tool at the end of the upper part or with a chisel sleeve on top of the platform so that the notch goes as deep as the entire frame-wide recess and thus has a common plane.

2 58199 In practice, it has proved that making a notch in this way is not entirely satisfactory. If the notch is made on top with a chisel, the surface of the platform may break or at least squeeze in so much that the finished joint does not look quite tight. On the other hand, if the notch is made with a lying vibrating tool, as recommended in the publication, the surface of the lower part of the upper part will easily break and the edges of the notch will become uneven. For this reason, in practice, it is often done by leaving a very thin intact surface layer, which is only removed from the notch at the construction site.

It is therefore an object of the present invention to provide such an improvement that the notch can be made in a simple manner and in such a way that the joint looks tight and neat. To achieve this, the invention is characterized in that said notch is made by drilling from the end of the upper or lower body to a depth at least according to the platform platform, the bore being positioned and dimensioned so that its center point in the axial direction is substantially at the base of the upper or lower body platform, wherein the portion of the upper or lower body platform above the bore is cut directly across the side body platform.

Direct cutting of the platform can be performed before or after drilling, but preferably after. The drilling is suitably done somewhat, e.g. to a depth of about 1 mm than said straight cut. -

Due to the fact that the circumferential surface of the borehole forms an acute angle with the surface of the upper or lower part of the frame, the notch can be made by adjusting the center of the bore to a suitable narrowness relative to the platform so that the joint becomes absolutely tight.

The invention will now be described in more detail by way of example and with reference to the accompanying drawing, in which Figure 1 shows a perspective view from the top or bottom of a door frame, Figure 2 shows a perspective view from above of a corresponding side piece, and Figure 3 shows a top or bottom view from above.

3,58199

In the figures, reference numeral 1 denotes a transverse piece of the door frame, i.e. its upper piece or possibly a threshold piece. The number 2 denotes a corresponding side piece which is cut off straight from the end. The frame profile has, in a known manner, an inwardly projecting platform 1a and 2a, against which the door panel comes. It should be mentioned here that the upper part 1 is shown turned upside down for the sake of clarity.

A recess 3 is provided in the end of the upper body 1 for receiving the end of the side body 2 in a known manner. According to the invention, a bore 4 is further provided at the end of the upper body, the inner part 4a of which forms a notch receiving the platform 2a of the side body 2. From the upper side of the bore, the platform 1a is cut directly across so that the cutting surface comes against the upper side of the platform 2a. The drilling 4 is preferably made slightly deeper than this cutting surface and the drilling can be done either before or after the recess 3 is made.

Figure 3 shows the top of the head. It is also very clear that the width of the notch can be easily adjusted by appropriately selecting the center line of the bore 4. The drilling also creates sharp-angled parts at the upper edges of the notch, which easily fit tightly against the sides of the platform 2a when the notch is made suitably narrow. In order for the notch to be wide enough at the bottom, the center of the bore 4 must be at or below the depth of the recess.

Thus, according to the invention, the idea according to the previous patent that the notch and the recess 3 have a common base plane has been abandoned, and instead attention has been paid to the ease of making the notch and at the same time to the appearance of the final joint. The drill mark is considerably cleaner than with an oscillating tool, and the notch is also made faster.

Claims (2)

4,581,99 A corner joint between the upper or lower part (1) of a door or window frame (1) and a side piece (2), wherein the frame profile has a platform (1a, 2a) on the inside of the frame against which the door leaf or window frame comes and on both sides the frame profile is lower, wherein the side piece (2) is cut straight at its end and fitted into a corresponding recess (3) at the end of the upper or lower piece (1), the dimension of which in the longitudinal direction of the upper or lower piece is the same as the thickness of the lower part profile, and further -or the platform (1a) of the lower body (1) is provided with a continuous notch (4a) from said recess (3) to which the corresponding end of the platform (2a) of the side piece (2) fits, characterized in that said notch (4a) is made by drilling from the end of the upper or lower body (1) to at least - the depth according to the platform (2a) of the side body, the bore (4) being positioned and dimensioned so that its center point in the axial direction is half the depth of the recess (3) and that the circumferential surface of the borehole extends substantially at the root of the platform (1a) of the upper or lower body (1), the part of the upper or lower body platform above the bore being cut directly across the side body (2) at a point defined by the platform (2a). Angle joint according to claim 1, characterized in that the bore (4) is made slightly deeper than said straight cut.