RU2503790C2 - Adjustable hinge for window or door frame - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: adjustable hinge for a window or door frame (1) of heavy type (especially doors), comprising: at least two bodies (7, 17) for fixation of the hinge (1) on the window or door frame and on the fixed frame; a hinged pin (3); two control bushings (5, 26); at least one control screw (4); two end plugs (22); a row of control orifices (2); and a small swinging bushing (29), which is capable of holding the control screw (4); and at least one fixing screw (50), equipped with a head (51) with a flange (52), adjusted for insertion of the hinged (1) inside the pin (3).

EFFECT: improved operating reliability.

15 cl, 20 dwg

Description

The present invention relates to a hinge used for a heavy type window or door frame (especially doors) with the possibility of its regulation along three axes.

Usually this type of window or door frame comes with structurally stronger profiles than the standard, thus allowing the production of industrial building products with larger dimensions and weight, as a result.

Due to the large weight of the window or door frame, the aforementioned adjustment allows you to better adapt the position of the movable frame relative to the fixed frame (whose weight usually reaches 80 kg), making it easier to work both in the workshop and during installation.

The adjustments mainly comprise regulation of the closing force, lateral regulation and height adjustment.

Usually these loops mainly contain

- two cases attached to the frame and to the canvas, respectively;

- one pivot pin made of steel;

- two adjusting sleeves.

Two cases additionally have:

- a slot longitudinal to the pin in which the bushings are installed;

- a wing for attachment to a fixed frame or a movable frame (ceiling), respectively;

- openings in the housing for fastening screws, hinges of the frame, and sockets for casings that cover the screws, all of which are made on the wings.

The bushings usually consist of a cylindrical body closed at one end, with a shoulder on the opposite end and an internal offset of the hole relative to the body.

This hinge structure allows, due to the corresponding rotation of the body in the loop, to move the axis of the pin, thus allowing you to adjust the position of the wing relative to the frame.

Sometimes the hinge body and the sleeve, respectively, have grooves and key teeth; therefore, in order to be able to rotate the sleeve, it is necessary to raise the wing, move the sleeve away from the hinge body, insert it into a new slot and, in conclusion, place the wing again.

This operation is very inconvenient both because of the weight of the wing, and because of the need to involve at least two people, and they do not always cope with the implementation of suitable regulation on the first try.

Another negative aspect of this method is that the force adjustment and lateral adjustment depend on each other, and therefore, during this operation, it is necessary to find the right compromise between the two available bushings (upper and lower) to obtain the optimal result.

Given the height adjustment, a more classic solution is to introduce some washers between the two bushings. This solution is very inconvenient to perform, since the wings, which still have a problem of their weight, must be removed, the washer must be inserted between and the wings must be inserted again.

In the past, attempts have been made to improve the method of performing the above adjustments.

A lateral control solution was obtained by means of a longitudinal eccentric that is integrated with the pin; in this way, it is enough to rotate the eccentric in order to obtain an offset.

Another solution is the insertion of step means transverse to the pin, so that when the step means is rotated, the pin moves.

This solution, being effective, has some drawbacks: in fact, to perform such adjustments, it is necessary to dismantle the covers that cover the screws in order to open sufficient slots through which the said tool is inserted between them to adjust and fix the position of the wing.

In these cases, it happens that the collector in the warehouse must take a hinge mounted in a window or door frame, but with the cork and covers removed, at the risk of losing them, and with a huge loss of time to assemble everything again.

In order to solve the above problems, the applicant of the present invention has registered patent EP-B1-1455042, which makes such adjustments easier and without the need for dismantling the covers.

In this case, the warehouse worker only has to dismantle the plugs, make adjustments and mount the plugs again.

The present invention relates to an improvement in the adjustable hinge of EP-B1-1455042. The aim of the invention is to ensure the final stable and long-term locking of the hinge, which guarantees the adjustment of the window or door frame, constant over time, and, in addition, guarantees the functionality of the hinge during its use, without even observing the technical requirements.

The above and other objects and advantages of the invention, which will be apparent from the following description, are achieved with respect to an adjustable hinge for a window and door frame, as disclosed in claim 1. Preferred embodiments and further variations of the present invention are disclosed in the dependent claims.

The present invention will be better described by means of preferred embodiments thereof, given as a non-limiting example, with reference to the attached drawings, in which:

- FIG. 1 is a perspective view of a loop according to the present invention;

- FIG. 2 is a perspective view in parts of the loop of FIG. one;

- FIG. 3 is a perspective view of the loop of FIG. 1, which shows a working connection with one of its components;

- FIG. 3A is a detailed view of the part of FIG. 3;

- FIG. 3B is a detailed view of an adjusting washer 1;

- FIG. 4 is a detailed view of the loop sleeve of FIG. one;

- FIG. 5 is a sectional view along the axis of the loop pin in FIG. one;

- FIG. 6 is a detailed view of a metal sleeve;

- FIG. 6A-6E show sectional views of the loop of FIG. 1, showing the invention in a working position;

- FIG. 7A-7C are perspective views that show three steps of mounting the shoulder of the present invention on an adjustable loop; and

- FIG. 8A-8C are sectional views corresponding to FIGS. 7A-7C.

The figures show and describe a preferred embodiment of the loop of the present invention. It will be apparent that numerous variations and modifications (for example, relating to shape, size, different colors and parts with the same functionality) can be made in addition to those described without departing from the scope of the invention as defined by the claims.

As shown, the height adjustment according to the Y axis is mainly carried out by washers, but with two important modifications, according to which

- no need to remove the wing in order to insert the adjusting washers;

- the operator does not have to make any effort to manually raise the wing.

The washer 2 (Fig. 3B) has an opening 2A on one side, the size of which is slightly smaller than the diameter of the pin 3 (Fig. 3A), and functions so that during adjustment it can be inserted without removing the wing: in fact, it is enough to raise the wing by about two millimeter and insert the washer thanks to the aforementioned hole 2A. In fact, as soon as the hole 2A of the washer 2 reaches the center distance of the pin 3 (Fig. 3A), due to the smaller size relative to the diameter of the pin 3, it will snap into place and will come to a stable position on the pin 3.

In order to raise the wing, facilitating the work of the operator, the screw 4 (Fig. 2) is inserted into the head of the pin 3 and is screwed directly into the pin 3.

In this case, the operator should not do anything else, except that, when the hinge is mounted on the window and door jamb, turn screw 4 (Fig. 2) counterclockwise: screw 4 will press on the bottom 5a of the opposing sleeve 5, which, in its in turn, transfers force to the hull body 7, which is fully fixed to the wing.

The wing will now be raised, allowing the operator to insert the adjusting washer 2 for the required time without any effort, and the operator will be able to lower the wing by simply turning the screw 4 clockwise.

In order to avoid loss of the inserted washer 1, due to compression and rotational actions to which it is subjected, a protrusion 8 (Fig. 3B) is made on one side of the washer, passing around its inner diameter, together with a recess 9 (Fig. 3B) on the other side, so that the protrusion 8 is inserted into the chamfer 10 (Fig. 4), respectively, made on the sleeve 5 (Fig. 4).

The recess 9 (Fig. 3B) is also used to interconnect many washers 1, in order to have a range of different regulation.

In addition, in order to avoid turning the washer 1, which makes the hole 2 (Fig. 3B) visible, an additional protrusion 11 is created, which closes in another recess 12 of the sleeve 5 to prevent the washer from turning.

To regulate the force Z, a classical method is used using a sleeve made of a plastic self-lubricating material with a biased hole in which some improvements have been made.

As described previously, the sleeve 5 (Fig. 4) consists of a cylindrical body 13, closed at one end, with a rim 6 at the opposite end, and an inner hole 15, offset relative to the body 13.

At the opposite end of the rim 6, a hexagonal socket is created, which extends into the biased hole 16 and is used to rotate the sleeve 5 for the next effort control.

In order to determine the position of the sleeve 5, on the hinge bodies 7 and 17 (Fig. 2), and more specifically on the corresponding sockets 18 and 19 into which the sleeve 5 is inserted, two semicircular grooves 20 and opposite grooves 21 (also of a semicircular type) are made made on the sleeve 5 (Fig. 4).

In particular, on sleeve 5, grooves 21 are 360 ° spaced at 30 ° intervals.

In this case, after the sleeve 5 is turned to perform adjustment, everything will be locked in a certain position by means of a plug 22 (Fig. 2), which abuts against the hinge bodies 7 and 17 on the opposite parts into which the sleeve 5 is inserted, by two small pins 23 (Fig. 2), which are inserted into circular sockets made with semicircular grooves 20 of the body 7 and 17 of the hinge, which border semicircular grooves 21 of the sleeve 5.

To facilitate the correct positioning of the sleeve 5 during rotation, the remaining marks 25 and 24 (Fig. 4) were created on the rim 6 of the sleeve 5 with an interval of 30 °, so that when the operator rotates the sleeve 5 (for adjustment), he can visually and directly determine both the position of the sleeve 5 and the regulation that it performs.

In order to easily and quickly read the regulation position, the marks 24 (Fig. 4) are made with different and increasing heights, starting with one mark 25 (Fig. 4), an intermediate length that shows the position "0".

By rotating the sleeve 5 (Figure 4) in the direction where the height of the mark increases, the force on the washer increases, and, conversely, in the direction where the height of the mark decreases, the force decreases on the washer; in addition, the number of marks also varies in different positions, namely 1 mark in the “0” position, 2 marks in the middle position, 3 marks in the maximum regulation position.

Lateral regulation of the pin 3 (Fig. 6) with respect to the X axis was obtained by enclosing it inside the metal sleeve 26 (Fig. 6), which has two grooves 27 and 28 (Fig. 6), along which the pin 3 can slide, actually fixing it control limit: in this case, the pin 3 is locked along the Z axis and its movement is carried out only along the lateral axis X, perpendicular to the previous axis, and inside the above control limit.

In this case, the pin 3 (Fig. 6) is free to slip in the whole control limit, which was limited by the grooves 27 and 28 (Fig. 6); in order to be able to determine and subsequently fix its position along the X axis, a small sleeve 29 (Fig. 6) is inserted, which is guided at one end into the groove (26A) obtained in the metal sleeve 26 by a swinging motion relative to a predetermined axis . Inside it contains the aforementioned pin 3, by means of which the small sleeve 29 (Fig. 6B) is centered on one end of the above axis and by swinging it biases the pin 3, determining its position.

The aforementioned metal sleeve 26 (FIG. 6) is hollow to accommodate a pin 3 and a small sleeve 29, shaped to reproduce the aforementioned axis of rotation for the small sleeve 29; this also creates 26V limit stops for swinging. One of the two above-mentioned grooves 28 is created at the bottom.

Another groove 27 is made in a metal plug 30, which closes the aforementioned metal sleeve 26.

In order to swing the small sleeve 29 (Fig. 6A) and therefore to displace the pin 3, since it is not possible to directly operate with the aforementioned small sleeve 29, surfaces 31 (Fig. 6C) on the pin 3 were provided, these surfaces 31 are located opposite to the inner surfaces 32 (Fig. 6B), made in a small sleeve 29, and on the same side is a hexagonal socket 33 (Fig. 6) in the upper part.

In fact, when the hexagonal wrench interacts with the pin 3, the small sleeve 29 is forcibly rotated due to the surfaces 31 and 32.

Regulation is blocked by means of a dowel 34 (Fig. 6) located on the same side as the hexagonal socket 33 of pin 3, which directly clamps the small sleeve 29, therefore, by means of it, pin 3 is blocked.

The metal sleeve 26, in order to be directed relative to the hinge body 17, has two cylinders 35 (Fig. 6) that engage the aforementioned semicircular grooves 20 (Fig. 2) made on the hinge body 17 (Fig. 2).

An improvement according to the present invention has been applied to the above-described loop 1 and to its preferred installation process, which allows achieving the above objectives.

Such an improvement consists in providing at least one fixing screw 50, equipped with a head 51 with a flange 52, capable of being inserted inside the pin 3 of the loop 1, while the pin 3 contains the above-described threaded hole 33 (preferably of type M5).

In fact, after making adjustments to the hinge 1 installed on the window or door frame, before installing the end caps 22 at the ends of the hinge 1, the fixing screw 50 interacts with the pin 3 and they are tightened until the pin 3 is completely fixed.

Using this special screw 50 (preferably, as seen, type M5), the pin 3 / sleeve 26 is mounted by fixing it in the correct position thanks to the screw 50, which acts as a clamp, mutually locking its movable adjustable components as a unit.

As shown in FIG. 7A-7C and 8A-8C, the order of the installation in progress contains the following steps: first of all, adjustment of the loop 1; then tightening the thread 33 by screwing the flange screw 50 until it is fully tightened, and then, finally, inserting the end caps 22.

Thus, a final stable and continuous fixation of the hinge 1 is carried out, which ensures that the adjustment of the window or door frame is maintained over time and additionally guarantees the functionality of the hinge even during use that does not meet the technical requirements.

Claims (15)

1. An adjustable hinge for a window or door frame (1) comprising
- at least two cases (7, 17), made with the possibility of fixing the hinge (1) on a window or door frame and on a fixed frame;
- articulated pin (3);
- the first and second adjusting sleeves (5, 26), enclosed in the respective slots (18, 19) of the first and second bodies (7, 17), while the said slots are longitudinal relative to the pin (3);
- at least one adjusting screw (4) for adjusting the height;
- a number of adjusting washers (2);
- two end caps (22);
- at the same time, the adjusting screw (4) is inserted into the head of the pin (3), the adjusting screw (4) is made screwed into the pin (3) to facilitate raising and lowering of the wing;
- while the adjustable loop further comprises a swinging sleeve (29), adapted to accommodate the pivot pin (3) in it with at least one adjusting screw (4) screwed inside it;
- said bodies (7, 17) comprise grooves (20) for interfacing with corresponding grooves (21) on the first sleeve (5);
- the second sleeve (26) has a groove (28) in which the aforementioned pin (3) can slide along the longitudinal axis;
moreover, a small sleeve (29) is contained in the second adjusting sleeve (26), and a small sleeve (29) is guided from one end inside a groove (26A) made inside the second control sleeve (26) with a swing movement, while inside the small sleeve (20) biasing surfaces (32) are made opposite opposite similar biasing surfaces (31) made on the outer surface of the pin (3), and the interaction between them allows the small sleeve (29) to bias the pin (3) when the small sleeve (29) swings inside the second bushings (26);
characterized in that the loop further comprises at least one fixing screw (50) provided with a head (51) with a flange (52) and adapted to insert a pin (3) into the corresponding socket (33), and the fixing screw (50) is made with the possibility of interacting with the node of the pin (3) / sleeve (26) and fixing them in the installation position by acting as a clamp on the pin (3), mutually locking the pin (3) and the second sleeve (26) as a node and a small sleeve (29) inside bushings (26). 2. An adjustable loop according to claim 1, characterized in that the grooves (20) of the bodies (7, 17) have a semicircular or any other shape suitable for the correct positioning of the first sleeve (5). 3. The adjustable loop according to claim 1, characterized in that the first sleeve (5) comprises a cylindrical body (13), closed at one end (14), with a rim (6) at the opposite end, and an inner hole (15). 4. Adjustable loop according to claim 3, characterized in that said hole (15), which is a socket for a pin (3), is offset from the housing (13). 5. An adjustable loop according to claim 4, characterized in that the first sleeve (5) is provided at the opposite end with a rim (6) with a hexagonal socket (16), which extends from the offset hole (15), providing access to the screw (4). 6. Adjustable loop according to claim 5, characterized in that said rim (6) is provided with visible indicative marks (24, 25) in order to facilitate proper placement relative to the first sleeve (5). 7. The adjustable loop according to claim 6, characterized in that the index marks (24, 25) have a different and increasing height. 8. Adjustable loop according to claim 1, characterized in that said sleeve (5) is provided with grooves (21) 360 ° at equal intervals that can be connected with grooves (20) made on the body (7) of the loop. 9. An adjustable loop according to claim 1, characterized in that said plugs (22) are equipped with at least one small pin (23). 10. The adjustable loop according to claim 1, characterized in that the said plugs (22) are adjacent to the hinge bodies (7, 17), one on the opposite sides, into which the first sleeve (5) and the second sleeve (26) are inserted through small pins (23) that are inserted into round sockets made with grooves (20) on the hinge bodies (7, 17), which are located opposite the grooves (21) of the first and second bushings (5, 26). 11. Adjustable loop according to claim 1, characterized in that said pin (3) is partially contained inside the second sleeve (26). 12. Adjustable loop according to claim 11, characterized in that said second sleeve (26) is closed by a metal cover (30), which has a groove (27) along which the pin (3) can slide along the longitudinal axis. 13. An adjustable loop according to claim 11, characterized in that the second sleeve (26) has two small cylinders (35) that engage with grooves (20) made on the body (17) of the loop. 14. The adjustable loop according to claim 1, characterized in that the washers (2) have a recess (9) on the lower circumference of the diameter and a protrusion (8) on the opposite side, capable of engaging as with the recess (9) of the adjacent washer (2), and with the inner chamfer (10) obtained on the first sleeve (5) in order to avoid that, under pressure and the rotational movements to which they are subject, the washers (2) were not removed from their nests. 15. The adjustable loop according to claim 1, characterized in that the washers (2) have a recess (11A), and on the opposite surface a protrusion (11) that is able to engage the recess (11A) of the adjacent washer (2), or the protrusion (12) , which is made on the first sleeve (5) in order to prevent rotation of the installed washers (2), which could make the hole (2A) visible.

Images