DK175457B1 - Arm bracket with child lock for reversible window - Google Patents

Description

DK 175457 B1

The present invention relates to an articulated arm bracket for a reversible window of the kind in which a window frame is rotatable about a central pivot axis at an angle of from 0 ° to approximately 180 ° relative to a window frame, by means of two opposite articulation brackets, wherein the window frame of the respective brackets are pivotally mounted at a first end of a support arm, the opposite end of which is supported and supported by a first support arm and a second support arm, wherein the support arm is pivotally mounted at a first end of the respective first and second support arms, if opposite end is pivotally mounted in a common attachment member which is attached to the window sill and wherein the swivel movements of the arms, at least in one of the 10 arm brackets, can be limited to a smaller pivotal area by means of a self-locking (child safety) lock which includes a locking member, which at one end engages the supporting arm or the attachment member and at the other end engages with one support arm, the electric member and the cooperating In one supporting arm are each equipped with a set of cooperating control and locking means, comprising a guide pin which is slidable in a guide groove with associated arresting sections which mark respectively child lock and locked in vent position.

It is possible to provide both arm brackets with their own self-locking fuse. However, for practical reasons and in the solutions used in practice, only one articulated bracket in reversible windows is equipped with self-locking fuse, while the other articulated bracket is without such fuse.

The initial embodiment disclosed is known from NO 122,614. The self-locking fuse proposed in the said Norwegian patent has a vertically slidable bolt portion (fall) attached to the attachment portion and has a cooperating locking portion rigidly attached to and projecting laterally outward from a first support arm. The latch portion and latch portion ensure that the window frame can be pivoted back and forth from the closed 30 position in a restricted pivot arch to be able to set the window in various desired vent positions. The swing arch is limited so that a child should not be able to fall out through the window opening. For this purpose, the self-locking fuse is often called a "child lock". However, it is possible for DK 175457 B1 to manually actuate an actuating member on the bolt member to cancel the self-locking fuse, for example to open the window approximately 180 ° to clean the exterior of the window in an easy manner.

5 A number of different H solutions to the self-locking fuse have been proposed in other publications for various reasons in order to make the fuse the best H possible for its purpose.

Η In NO 150.171 it is proposed to fasten the locking part in the form of a laterally outwardly projecting pin 10 on the first support arm and the bolt part in the form of a weighted articulated arm on the support arm, while in NO 157.112 it is proposed to fasten the locking part in the form of a lateral outward projecting tabs on the first support arm and the bolt portion in the form of a weighted articulated arm on the attachment member.

15 In the known solutions, the guide groove is defined so that it is only active during the limited oscillation of the window frame which is controlled by the self-locking fuse, while the oscillation of the window frame over any larger arches occurs independently of the self-locking fuse.

The present invention is generally intended to develop a fuse, which is simple to produce and simple to operate, and which is also reliable. It is important in this context that it can fulfill the requirements of the regulations (BS 6375) for strength. According to the invention, it is specifically intended to be able to secure the engagement between the guide pin and the guide track throughout the swing movement of the window frame 25, i.e. both during the limited oscillation within a vent position and during the continued oscillation outside the latter area

The guide arm bracket according to the invention is characterized in that the locking section of the guide groove 30 is arranged in a region between a relatively short inner groove portion closed at the end and a more elongated outer groove portion closed at the end, and that the guide pin ensures continuous steering engagement between the steering pin. and the guide track throughout the window frame's range of motion.

DK 175457 B1 I

3 I

The above solution has laid the foundation for effective management of I

the various swing movements of the window so that you can counteract

malfunctions due to non-engagement of the control elements. In addition, I

S has been laid the basis for the accompanying simple operation of the fuse and I

a favorable structural design of the fuse. IN

It is preferred according to the invention that the guide groove and associated I

arresting sections are formed in one support arm and extend substantially in I

10 the longitudinal direction of the support arm and preferably arranged at the side edge which I

facing the other support arm. Hereby you can, among other things, incorporate

the arresting section in the support arm itself, and by corresponding sizing of I

the support arm allows for efficient transmission of power from the securing device I

via the support arm to the attachment part. IN

15 I

Furthermore, according to the invention, it is preferred that the guide pin be carried at the one

At one end of the articulated arm, the opposite end of which is pivotally mounted on the support arm of I

In an area between the pivot axis of the window and said first support arm I

pivot point on the support arm, the articulation arm being preferably arranged close to it

In the first 20 support arms pivot point on the support arm. Hereby a particular I can be obtained

In compact and robust construction, which will be suitable for relatively small I

windows, but which can also provide significant benefits to large and medium I windows.

Further features of the present invention will become apparent from the following description, reference being made to the drawings, in which: 1 in vertical section shows a reversible window with the linkage bracket according to the invention and in FIG. 2-5 show the articulated arm bracket according to FIG. 1, in side view, in four different positions I for the articulated arm bracket.

DK 175457 B1 Η In fig. 1, a window frame 10 and a window frame 11 are shown with associated window glass not shown. The window frame 11 is attached to the window frame 10H with two articulated brackets 13, one on each vertical side of the window frame. In the H drawing, only the one closest arm bracket is shown, i.e. the bracket 5 attached to the plane of the drawing not shown, vertical side H of the window frame, the second articulator bracket being formed substantially H mirrored and attached to the vertical side 10a of the window frame shown.

For practical reasons, it is preferred that only one, i.e. the bracket shown in the drawing 10 is equipped with a self-locking fuse 14, while the other underlying bracket is without the fuse 14. In other words, both brackets can have the same shape as shown herein or the other bracket not shown can have any design which can be used with the bracket 13.

15 In general, the articulation bracket is made up of a fastener part 15 which forms a common support part for the other bracket parts, as well as the window frame 11, and which H can be fastened to the window frame with fastening screws 16. On the fastening part 15 is a pivot 17 for a first, lower end of it. first support arm 18 and a pivot 19 for a first, lower end of a second support arm 20 pivotally spaced at a suitable distance from one another.

In the support arms 18, 20, by means of a pivot pin 21 at the second upper upper end of the support arm 18 and a pivot pin 22 at the second upper upper end of the support arm 20, respectively, are connected to a support arm 23 at the upper, upper end thereof.

To the second, lower end of the support arm 23, the window frame 11 itself is pivotally mounted via a pivot 24 about its horizontal center axis 11a, which coincides with the pivot axis of the pivot 24. The one of the window frame 11, in fig. In the upper end shown, a sliding part 11b which is pivotally mounted at 11 c in the window frame 11 can slide in a guide rail 10b.

Accordingly, at one end the window frame 11 is provided with a pair of sliding parts 11b, one on each side of the window frame 11, while in the middle it is provided with a pair of pivots 24, one on each side of the frame 11, thus that the window frame 11 can be rotated about a space between the linkage brackets 13 approximately 180 ° from the normally closed to fully rotated position. Accordingly, the window frame 11 is mounted around a pivot axis 11a, which 5 passes through corresponding pivot pins 24 in the two cooperating articulator brackets 13, which are disposed on each side of the window frame 11, while the one end of the window frame is arranged to slide in vertical direction in the the window frame 10.

10 In a region between the pivot pin 24 for the window frame 11 and the pivot pin 21 for the first support arm 18, on the support arm 23, via a pivot pin 25, pivotally is mounted one, upper end of a guide arm 26. In the illustrated embodiment, the pivot pin 25 is arranged relatively close to the pivot pin 21. The second, lower end of the guide arm 26 carries a laterally oriented pivot pin 27 which can slide in a guide groove 28 formed in the above first support arm 18. In the guide groove 28 there is between a first rectilinear groove portion 28a and a second rectilinear groove portion. 28b, in an intermediate, approximately S-shaped groove portion 28b, provides an arresting portion 29 for the pivot pin 27. The guide arm 26 with associated guide pins 27 and portions of the support arm 18 with 20 associated guide grooves 28 and arresting portion 29 together form the aforementioned self-locking fuse 14.

The link arm bracket not shown herein can, as mentioned, be without fuse 14, i.e. one can simply omit the arresting portion 29 of the guide groove 28 or alternatively 25 omit the guide arm 26 and the guide pin 27. Optionally, the guide groove 28 of the support arm 18 may also be omitted.

As shown in FIG. 2-5, the guide arm 26 is extended a bit past the guide pin 27 with an impact tab 30 which can be manually operated to positively lift the guide arm 26 26 in the direction of arrow A, thereby pushing the guide pin 27 sideways out of the arresting portion 29 of the guide groove 28.

I DK 175457 B1 I

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In FIG. 2, the bracket 13 is shown in idle position with the window in the closed position. As a result I

I of the course shown on the guide arm 26 between the pivot pin 25 and the control pin 27 I

You can - by swinging the window frame 11 from the closed position (with I

In the bracket 13 in the position shown in FIG. 2) to the one shown in FIG. 1 vent position, I

I 5 as shown by arrow B - ensure that the support arm 23 pulls the guide pin 27 into position I

In the arresting portion 29 in the direction of arrow C, as shown in FIG. 3. I

In FIG. 3, the bracket is shown in the "childproof" vent position by means of the fuse I

In 14, after bracket 13 is allowed to pivot from the one shown in FIG. 2 to that of FIG. 3

In position, while the guide pin 27 has moved in the groove portion 28a toward I

In the arresting party 29. I

I After the fuse 14 is lifted by manual actuation of tab 30 and thereof I

Thus, in the following displacement of the guide pin 27, as indicated in FIG. 4 I

In 15, ensure that the guide arm 26 extends the guide pin 27 in the direction of the arrow C through I

In the S-shaped groove portion 28c and further in the second groove portion 28b downwards toward I

At its end portion. With the guide pin 27 shot inward in this end portion, you are

In the window frame 11 turned 90 ° from the closed position and by further reversing of I

In the window frame for a further 80-90 °, the guide pin is slid into place in the guide track I

In the inner portion 28a. This implies that one can obtain a substantially equivalent I

In self-locking range of window frame 11 by oscillations in I

In the range 170-180 ° from normally closed window position. This may be you

Advantageously, for example in connection with cleaning the window of the window I

On the outside, when facing the interior space. IN

I 25 I

For space reasons, the groove portion 28b is arranged close to I

In the longitudinal axis 18a of the support arm 18, parallel to this axis. To ensure a

In the favorable course of the guide track 28, i.e. the course of the S-shaped intermediate portion I

In 28c and adjacent track portion 28a, the support arm 18 is provided with an I

In laterally projecting portion 18b which can be pivoted inwardly on the underside of I

In the support arm 20 at its lower pivot pin 19. I

In order to ensure extra longitudinal stiffening of the support arm 18, this between the outer ends is provided with a longitudinal concave recess on one side of the arm and a corresponding convex alignment 32 on the opposite side of the arm.

Alternatively, the arm 18 can be reinforced by being made with a greater thickness I · 5 and by optionally omitting said recess respectively alignment 32.

Claims (3)

Conductor bracket according to claim 1, characterized in that the guide groove (28) with associated arresting section (29) is formed in the first, first support arm (18) and extends substantially in the longitudinal direction of the support arm (18) and is preferably arranged at the lateral edge. , which faces the second support arm (20). DK 175457 B1 9 The articulated arm bracket according to claim 1 or 2, characterized in that the guide pin (27) is arranged at one end of the bolt part which forms a articulated arm (26), the opposite end of which is rotatably mounted on the support arm (23) via a pivot pin (25). in an area between the pivot axis I * 5 (11a) of the window frame (11) and the pivot point (21) of said first support arm (18) on the support arm (23), the guide arm (26) being preferably arranged close to the first supporting arm I (18) pivot point (21) on the support arm (23). The articulation arm according to claim 3. CHARACTERIZED in that the articulation arm (26) is extended at the end past the guide pin (27) to form I a manual actuating tab (30) for unlocking the locking engagement of the fuse (14), i. the engagement between the guide pin (27) and the arresting portion (29). The articulated arm bracket according to one of claims 1-4, characterized in that the oscillation plane of the arm (26) is arranged between the support arm (18, 20) oscillating plane, which is known in a manner known per se in one and the same plane. and the oscillation plane of the support arm (23), while the guide pin (27) of the guide arm (26) protrudes laterally inwardly of the support arm (18, 20) in the oscillation plane of the supporting arm (28). Conductor bracket according to one of claims 1-5, characterized in that the guide groove (28) has a first relatively rectilinear groove portion (28a) for controlling the swinging of the H arm bracket (13) to and from current vent positions and a second relatively rectilinear groove portion ( 28b) for controlling the pivot of the articulated bracket (13) to and from the maximum pivoted position, including the position of the window frame (11) approximately 180 °, and an intermediate, substantially S-shaped groove portion (28c) comprising the arresting section (29), the second track portion (28b) runs parallel to an axis (18a) through opposite pivot points (at 17,21) of the associated support arm (18), while the first groove portion (28a) and substantially S-shaped groove portion (28c) are arranged in substantially greater distance from the axis (18a) through the opposite pivot points (at 17, 21) of the associated support arm (18) in a laterally expanded portion which in the co-oscillated state of the bracket (13) is H arranged to be accommodated in a space between the support arms (18, 20).