DE102020127504A1 - Opening device for opening a locked window or patio door - Google Patents

Abstract

An opening device (1) for opening a closed and locked window or a patio door is proposed, the window and the patio door each having a window frame (11) and a casement frame (6), the window frame (11) being arranged on a wall and wherein the casement (6) is movably attached to the blind frame (11), wherein there is a static locking means (16) and a movable locking means (5) for locking the window or patio door, with the locking and/or the Unlock the movable locking means (5) is movable relative to the static locking means (16). According to the invention, the opening device (1) has a comparatively flat hook section (2), so that when the window and/or patio door is closed and locked, the hook section (2) can be pushed through a gap (10) between the window frame (11) and the casement frame ( 6) can be inserted through and can be hung on the movable locking means (5) of the window or the patio door, wherein when the hook section (2) is in the hung state, a multiply angled extension section (3) of the opening device (1) outside the gap (10) outwards in such a way on the window or patio door, that with the help of a pulling section (4) of the extension section (3), a pulling force can be exerted on the hook section (2) from the outside, so that when a pulling force is exerted, the movable locking means (5) can be moved out of a locked state .

Description

State of the art

Conventional windows comprise a window frame which is connected to a wall and a casement frame which can be moved to the window frame and in which a pane of glass, for example, is held. The sash frame is connected to the window frame via various fittings.

It is always necessary to open a closed and locked window or tilt and turn window or a patio door from the outside if, for example, a person has locked himself out of a building. Then an almost non-destructive opening of the window or tilt and turn window or a patio door is desired. The sash frame can be brought into different positions relative to the window frame via fitting elements. The window or turn-and-tilt window or patio door can be in an unlocked position, with the casement being pivoted open or tilted relative to the window frame. In a locked position, the sash is locked to the frame and the sash cannot be moved.

Object and advantages of the invention

The object of the invention is to provide an improved opening device for opening a closed and locked window or tilt and turn window and/or a patio door "from the outside", in particular almost without damaging the window or tilt and turn window or patio door and/or leaving any traces.

The object is solved by the features of the independent claims.

Advantageous and expedient embodiments, variants and developments of the invention are set out in the dependent claims.

The invention is explained below using a tilt and turn window. The statements also apply accordingly to tilt-and-turn doors or patio doors or a parallel slide-tilt door or a parallel slide-tilt window or a vertical sliding window. In the following, the term “window” is used in abbreviated form, at least mainly in general, instead of the term “tilt and turn window”.

The invention is based on an opening device for opening a closed and locked window or patio door, the window and the patio door each having a window frame and a casement frame, the window frame being arranged on a wall and the casement frame being movably attached to the window frame , wherein a static locking means and a movable locking means are present for locking the window or patio door, wherein the movable locking means is movable relative to the static locking means for locking and/or unlocking.

The functions of the hardware elements are similar or the same for windows and patio doors. The window may differ from the patio door due to a different dimensioning of a fitting.

A movable and/or a static locking means can be present on each side of the sash and/or the blind frame. A static locking means can also be present for each movable locking means. The number of static locking means is usually identical to the number of moving locking means.

The movable locking means is often arranged on the casement and the static locking means on the frame. It is also conceivable that the movable locking means are arranged on the frame and the static locking means are arranged on the casement.

The movable locking means are normally pins, e.g., roller pins and/or mushroom pins. The static locking means are, in particular, locking pieces. The locking means are regularly made of metal, e.g.

For example, conventional window handles have two sections that are at an angle to one another, for example handle legs. A first section of the window handle starts at the window frame and protrudes from it at an angle, in particular perpendicularly. For example, a second section of the window handle adjoins the first section of the window handle at an angle. The second section of the window handle can be longer than the first section of the window handle. The second, longer section of the window handle can be intended to be gripped by a user to operate the window handle. In particular, the movable locking elements are to be actuated with this section of the window handle. For example, the window can be locked, unlocked, tilted and/or swung open.

The sash frame of the window is regular, as well as the window handle and the movable one Locking means can be brought into three different positions. Normally, when the window is in its closed position, the sash is locked to the frame. The window handle is normally vertical with its free end down. For this purpose, the movable locking means can be accommodated in the static locking means, so that, for example, the movable locking means is blocked by a stop on the static locking means in at least one direction, in particular an opening direction of the window.

To move the window out of the locked position, the movable latch can be moved by rotating the window handle 90° so that the window handle is horizontal. The movable locking means are regularly all mechanically connected to one another, e.g. by means of corner drives and gear extensions, so that when the window handle is turned, all the movable locking means are moved at the same time. If the movable locking means on the side of the casement on which the window handle is arranged move, for example towards the floor, then the movable locking means on the opposite side of the casement move, for example towards the ceiling. By moving the movable locking means relative to the static locking means, the movable locking means can be moved out of the stop of the static locking means, so that the locking is canceled. As a result, the window can normally be pivoted and/or rotated about a rotary fitting which connects the casement to the frame.

In order to tilt the window, the window handle can be rotated 90° from the horizontal direction so that the free end of the window handle extends vertically upwards. When turning the window handle, the movable locking means can be moved further again, with the direction of movement remaining the same, i.e. the movable locking means move towards the floor on one side of the window and towards the ceiling on the other side of the window. Thus, the movable locking means are, for example, further away from the static locking means than when the window is in the pivoted or rotated position. In order to tilt the window, there is, for example, a tiltable corner bearing at a lower corner of the window. This allows the window to be tilted over the corner bearing at the bottom corner. If the window is in a tilted position, there is normally a gap between the sash frame and the frame, in particular a widening tilting gap, with the gap dimension increasing in height.

The essence of the invention is that the opening device has a comparatively flat hook section, so that when the window and/or patio door is closed and locked, the hook section can be inserted from the outside through a gap between the window frame and casement and onto the movable locking means of the window or the patio door can be hooked in, wherein when the hooked portion is in the hooked-in state, a multiply angled extension portion of the opening device projects outside the gap to the outside of the window or patio door in such a way that a pulling force can be exerted on the hooked portion from the outside with the aid of a pulling portion of the extension portion , so that when the tensile force is exerted, the movable locking means can be moved out of a locked state.

The inside of the window is usually the side on which the window handle is located.

There is usually a comparatively narrow gap between the sash frame and the window frame at all times, although the gap can be changed when the window is unlocked, e.g. by tilting the window. For example, if the sash frame is locked to the window frame, the gap width cannot be changed and is in the lower single-digit millimeter range.

Depending on the window construction, a gap in the locked state can also be widened slightly by applying pressure from the outside.

The opening device includes a hook portion and an extension portion. Preferably, the opening device is formed from a single component, the component being, for example, a metal rod.

The hook section is preferably designed in such a way that the hook section can be hung onto the movable locking means from the outside of the closed and locked window through the gap between the window frame and casement frame. The movable locking means are not directly accessible from the outside, since the movable locking means are normally covered by the frame. In this case, the hook section can preferably be hooked onto the movable locking means, which are located in the vicinity of the window handle. The hook section is preferably completely or almost completely in the suspended state of the hook section on the movable locking means Gap between window frame and sash frame recorded.

Advantageously, an extension section adjoins the hook section. The extension portion preferably projects to the outside of the closed and locked window when the hook portion is hooked to the movable locking means. Advantageously, the extension section can be pulled from the outside of the window or from the user's side, so that the opening device can be moved in the pulling direction. Provided that the hook section is correctly hooked onto the movable locking means, the movable locking means can advantageously be moved with the aid of the hook section by pulling on the extension section. Preferably, the pulling direction is the direction from which the movable locking means is moveable from a locked position to an unlocked position by external manual pulling.

When the one movable locking means is moved by the hook portion to which a pulling force is applied, since all the movable locking means are mechanically coupled to each other, preferably all the movable locking means can be moved simultaneously. The mechanically coupled movable locking means are advantageously movable relative to the associated static locking means and can be moved out of the associated stop of the static locking means, so that all movable locking means can be brought into an unlocked position simultaneously and in the same way. The window can thus preferably be completely unlocked with all effective locking means.

It is advantageous if the hook section has a support area, with one side of the support area, which can be hung onto the movable locking means, being of concave design.

The bearing area of the hook portion is preferably formed in a semicircular shape on a planar extent of the hook section, the planar extent extending in length and width, the width extending in a direction transverse to the length. Further, the hook portion has a relatively small thickness, the thickness extending transverse to the areal extent and correspondingly in a direction transverse to the length and width.

Furthermore, the support area can also have one or more bends, so that the support area is U-shaped, with the open side being able to be hung onto the movable locking means. The support area has a U-shape, with two sides having a length of 20 mm to 25 mm, the two sides are connected by a connecting element which has a length of 15 mm to 25 mm. A pulling force can preferably be exerted on the movable locking means with the connecting element.

The support area can preferably be adapted to the surface geometry of the movable locking means, with the movable locking means preferably having a curved or convex outer contour.

The support area preferably encloses the movable locking means on three sides. One side of the support area, in the suspended state on the movable locking means, preferably engages behind the movable locking means in the direction of the inside of the window. Another side of the bearing area preferably extends towards the outside of the window and another side or the connecting element of the bearing area is in contact with the upper side of the movable locking means, which is oriented towards the ceiling, for example.

The bearing area of the hook portion is preferably partially or fully in contact with the movable locking means when the hook portion is hooked onto the movable locking means.

It is also advantageous that the hook section has a threading area, the threading area being arranged at the end of the support area, and the threading section extending in the opposite direction to the extension section, so that the threading area helps when hanging the hook section on the movable locking means to guide and find the movable locking device.

The hook section is advantageously designed in such a way that the opening for hooking onto the movable locking means is enlarged by the threading area. The hook section preferably has a funnel function due to the threading area.

The edge contour of the threading area is preferably convex on the side which is aligned with the movable locking means when the hook portion is hooked onto the movable locking means.

Advantageously, the length of the hook section extends from the extension section to the end of the threading area. The length of the hook section is preferably made up of several areas, the first area extends from the extension section to the first side of the support area and is 90 mm to 130 mm, followed by the first side of the support area, then the connecting element of the support area and then the second side of the support area and at the end the length of the threading area, which is 10 mm to 15 mm.

Preferably, a surface area of the flat hook portion extends transversely of the connecting portion and preferably parallel to the direction of pull to move the movable locking means from the locked position to the unlocked position.

It is advantageous if the width of the material area that forms the hook section is in the millimeter range.

Preferably, the width of the in particular flat, even material area is between 3-10 mm, in particular 5-8 mm. The width of the area of material forming the hook portion preferably extends in a plane lying in the direction of pulling to move the movable locking means from the locked position to the unlocked position.

Due to the width of the material area that forms the hook section, the hook section is sufficiently stable during a drawing process so that it is not plastically deformed.

It is also advantageous that the thickness of the hook section or the thickness of the material area that forms the hook section is between 1.5 mm and 0.3 mm, in particular 1 mm and 0.8 mm.

It is advantageous that the thickness of the hook section is less than 1 millimeter, so that the hook section can be inserted into the gap between the frame and the casement of a closed and locked window. The hook portion is preferably also flexurally elastic, so that the hook portion can advantageously be guided around, for example, edges of the sash or frame, the hook portion restoring itself to the original shape when no force is exerted on the hook portion. Advantageously, the extension section is designed to be stable, so that it withstands the tensile forces and is not irreversibly bent.

Advantageously, the opening device is made of a metallic material.

The opening device is preferably formed from a stable metal, for example steel or stainless steel, which in the unmachined state is, for example, an elongate, cylindrical wire.

Preferably, a portion of the metal wire forming the hook portion of the opening device can be bent into a hook shape. The hook-shaped area of the metal wire, which can be inserted into the gap between the outer frame and casement, can be flattened, for example by a forging process and/or a pressing process.

It is also advantageous that the opening device is designed in such a way that the opening device does not undergo any plastic deformation during the pulling process if a tensile force is applied that is sufficient to move the movable locking means from a locked to an unlocked state in a conventional window or patio door .

Preferably, the opening device is designed in such a way that the hook section withstands at least a tensile force applied to the pulling section of at least 1 Nm, 10 Nm, 20 Nm, 30 Nm, 40 Nm, 50 Nm, 60 Nm, 70 Nm, 80 Nm, 90 Nm , 100 Nm, 110 Nm, 120 Nm, 130 Nm, 140 Nm or 150 Nm. The hook section of the opening device is advantageously designed in such a way that the hook section can absorb impulse-like forces. In this way, the movable locking means with the opening device can be pulled into an unlocked position on a conventional window.

Preferably, the extension portion includes a connecting portion and a pulling portion, the connecting portion connecting the hook portion to the pulling portion.

The connecting section is preferably cylindrical in shape and has a diameter in the millimeter range. The connecting section preferably has a cylindrical shape over its entire length, the connecting section advantageously being formed from a metal wire.

It is advantageous that the connecting section has bends.

The connecting section preferably has exactly two bends. Advantageously, the bends are at the connection section designed so that the movable locking means can be pulled both on a window where the window handle is arranged on a left or right side on the sash. The first bend is preferably arranged directly at the end of the hook section which is connected to the connecting section. The second angle aligns, for example, the connection section almost parallel to the hook section, but with the connection section offset horizontally to the hook section. Advantageously, the connecting section has a straight area, for example after the second angling, which is connected to the drawing section.

Advantageously, the drawing portion is ring-shaped, the elements forming the ring being connected to one another.

Advantageously, the metal wire that forms the opening device is wound several times in a ring shape, the portions of the metal wire that form the ring being permanently connected to one another, e.g., welded.

Preferably, a flexible pulling means can be attached to the ring of the pulling section, such as a rope, a wire and/or a cord, so that the pulling means can exert a greater pulling force on the opening device or the operation is simplified.

It is also advantageous if the traction means has a gripping element, such as a rod.

character list

Further features and advantages of the invention are explained in more detail using an exemplary embodiment of the present invention shown schematically.

• 1 eine perspektivische Ansicht einer erfindungsgemäßen Öffnungsvorrichtung von der Seite,
• 2 eine perspektivische Ansicht der erfindungsgemäßen Öffnungsvorrichtung von schräg vorne,
• 3 eine perspektivische Ansicht der erfindungsgemäßen Öffnungsvorrichtung gemäß 1 im eingehängten Zustand am beweglichen Verrieglungsmittel von der Seite,
• 4 eine perspektivische Ansicht der am beweglichen Verrieglungsmittel eingehängten Öffnungsvorrichtung an einem geschlossenen und verriegelten Fenster,
• 5 eine perspektivische Vorderansicht des statischen Verrieglungsmittel,
• 6 eine perspektivische Ansicht des dynamischem Verrieglungsmittel.

In detail shows:

• 1 a perspective view of an opening device according to the invention from the side,
• 2 a perspective view of the opening device according to the invention obliquely from the front,
• 3 a perspective view of the opening device according to the invention 1 when hung on the movable locking means from the side,
• 4 a perspective view of the opening device suspended on the movable locking means on a closed and locked window,
• 5 a front perspective view of the static locking means,
• 6 a perspective view of the dynamic locking means.

the 1 Fig. 1 shows an opening device 1, which preferably comprises a hook portion 2 and an extension portion 3. The extension section 3 preferably has a connecting section 17 and a pulling section 4 . The hook section 2 is advantageously the section of the opening device 1 which can be hung onto a movable locking means 5 on the leaf frame 6 (see Fig. 3 ). For this purpose, the hook section 2 has a contact area 7, which preferably has a curved shape, so that the arc or semicircle of the contact area 7 preferably does not just rest on the movable locking means 5 at certain points. For a better view of the suspended opening device 1 on the movable locking means 5, 3 the frame 11 is not shown. Wherein is in 3 it can be seen that the support area 7 preferably surrounds the movable locking means 5 from three sides or by more than 120°.

Furthermore, the hook section 2 preferably has a threading area 8, which is designed in such a way that when hooking or hanging the hook section 2 onto the movable locking means 5, the threading area 8 helps to guide the hook section 2 (see Fig. 1 ). The threading area 8 preferably adjoins the support area 7 and widens an opening with which the hook section 2 can be hung on the movable locking means 5 . The threading area 8 is aligned in such a way that the free end points in the direction of a window handle 9 on the casement 6 or away from a direction of the extension section 3 (see Fig. 3 ).

The hook section 2 is advantageously thin and flat (see Fig. 1 and 2 ), so that the hook section 2 can be inserted into a gap 10 between the frame 11 and the casement frame 6 when the window is closed and locked (see Fig. 4 ). A material area 2a, which forms the hook section, preferably has a thickness of less than 1 mm and a width B of 3-10 mm, in particular 5-8 mm. Furthermore, the hook section 2 has a longitudinal extent L, which extends from the end of the threading area 8 to the extension section 3 . The hook section 2 is preferably accommodated almost completely in the gap 10 between the window frame 11 and the casement frame 6 when it is in the suspended state on the movable locking means 5 (see Fig. 4 ).

The connecting portion 17 of the extension portion 3 is preferably between the Hook section 2 and the pulling section 4 of the extension section 3. The connecting section 17 has in particular at least one, preferably exactly two, bends 12, 13 (see 2 ). The first bend 12 is preferably arranged directly at the transition between the hook section 2 and the extension section 3 . The direction can preferably be changed by the first bend 12 . The second bend 13 is designed in such a way that the direction is advantageously changed again. Thus, preferably after two bends 12, 13, the pull section 4 is aligned almost parallel to the hook section 2, but offset horizontally to the hook section 2 (see Fig. 3 ).

The drawing section 4 is preferably ring-shaped. A tensile force can thus advantageously be transmitted to the hook section 2 by the pulling section 4 . Furthermore, a pulling means 14 can preferably be attached to the ring of the pulling section 4 in order to be able to exert more pulling force on the opening device 1 (see Fig. 4 ).

In order to open a closed and locked window from the outside, the hook section 2 of the opening device 1 can be pushed into the gap 10 between the frame 11 and the sash frame 6 (see Fig. 4 ). At this time, the hook portion 2 of the opening device 1 can be inserted into the gap 10 from the outside of the window, which is the side of the window which accordingly has no window handle 9 . Furthermore, the threading area 8 can advantageously be inserted first into the gap 10 between the frame 11 and the sash frame 6 . With the help of the threading area 8 of the hook section 2, the hook section 2 with the contact area 7 can preferably be hung onto the movable locking means 5 on the casement 6 (see Fig. 3 ). The hook section 2 is advantageously almost completely accommodated in the gap 10 between the sash frame 6 and the frame 11 (see Fig. 4 ). When the window is closed and locked, the movable locking means 5 on the casement 6 is preferably accommodated in the static locking means 16 on the frame 11, so that the movable locking means 5 is locked by a stop 15 on the static locking means 16 (see Fig. 5 ). When the window is closed and locked, the window handle 9 normally has its free end pointing downwards.

By pulling on the pulling section 4, for example using a pulling means 14, the movable locking means 5, on which the hook section 2 of the opening device 1 is suspended, can advantageously be moved in the pulling direction Z. The movable locking means 5 can be moved out of the stop 15 on the static locking means 16 with the aid of the opening device 1 and the window is unlocked and can be swung open by a user from the outside (see Fig. 6 ). When pulling the opening device 1 in the pulling direction Z, the window handle 9 is preferably also pivoted by 90° in a pivoting direction S in addition to the movable locking means 5, so that the free end of the window handle 9 extends in a horizontal direction. The movable locking means 5 can preferably be brought into an unlocked position with the aid of the opening device 1, in which case the window can be swung open or rotated.

If the movable locking means 5 were moved further in the pulling direction Z by pulling on the pulling section 4, the window is unlocked and can be tilted. This is more of a disadvantage, since access through the window is then not guaranteed.

Reference List

1

opening device

2

hook section

2a

material area

3

extension section

4

draw section

5

locking means

6

sash frame

7

support area

8th

threading area

9

window handle

10

gap

11

frame

12

deflection

13

deflection

14

traction means

15

attack

16

locking means

17

connection section

Claims (11)

Opening device (1) for opening a closed and locked window or a patio door, the window and the patio door each having a window frame (11) and a casement frame (6), the window frame (11) being arranged on a wall and the Casement frame (6) moveable on the frame (11) is attached, with a static locking means (16) and a movable locking means (5) being present for locking the window or patio door, with the movable locking means (5) relative to the static locking means (16) for locking and/or unlocking is movable, characterized in that the opening device (1) has a comparatively flat hook section (2), so that when the window and/or patio door is closed and locked, the hook section (2) can be pushed through a gap (10) between the frame from the outside (11) and leaf frame (6) can be inserted and hung on the movable locking means (5) of the window or patio door, with a multiply angled extension section (3) of the opening device (1) outside the gap when the hook section (2) is in the hung state (10) in such a way to the outside of the window or the patio door survives that with the help of a pull-off nitts (4) of the extension section (3) a tensile force can be exerted on the hook section (2) from the outside, so that when the tensile force is exerted the movable locking means (5) can be moved out of a locked state. opening device claim 1 , characterized in that the hook portion (2) has a support area (7), wherein one side of the support area (7), which can be hung on the movable locking means (5), is concave. Opening device according to one of the preceding claims, characterized in that the hook portion (2) has a threading area (8), the threading area (8) being arranged at the end of the bearing area (7), and the threading area (8) extending in the opposite direction extends to the extension section (3) so that the threading area (8) helps to guide the hook section (2) and to find the movable locking means (5) when hooking the hook section (2) to the movable locking means (5). Opening device according to one of the preceding claims, characterized in that a longitudinal extension of the hook section (2) extends from the extension section (3) to the end of the threading area (8). Opening device according to one of the preceding claims, characterized in that a width of the material region (2a) forming the hook portion (2) is in the millimeter range. Opening device according to one of the preceding claims, characterized in that a thickness of the hook section (2) or the thickness of the material region (2a) which forms the hook section (2) is between 1.5 mm and 0.3 mm, in particular 1 mm to 0.3mm. Opening device according to one of the preceding claims, characterized in that the opening device (1) is formed from a metallic material. Opening device according to one of the preceding claims, characterized in that the opening device (1) is designed in such a way that the opening device (1) does not undergo any plastic deformation during the pulling process if a pulling force is applied which is sufficient for a conventional window or a conventional patio door to move the movable locking means (5) from a locked to an unlocked state. Opening device according to one of the preceding claims, characterized in that the extension portion (3) comprises a connecting portion (17) and the pulling portion (4), the connecting portion (17) connecting the hook portion (2) to the pulling portion (4). Opening device according to one of the preceding claims, characterized in that the connecting section (17) has bends (12, 13). Opening device according to any one of the preceding claims, characterized in that the drawing portion (4) is ring-shaped, the elements forming the ring being connected to one another.

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