DE2812894A1 - Tilting window or door locking linkage - has locking pawl acting with parts of two part unit to check opening - Google Patents

Abstract

The folding shears are for tilting doors, windows or similar, such as with a scissor linkage to swing the wing itno an outwards hanging position, with levrs checking the window if it opens too far, and only releasable by hand. A locking latch (16), operating in conjunction with the parts (5, 7) of the linkage is fitted to a normal two-part unit. The latch can incorporate an arrester (19) in a slit (18), effective in the catch position.

Description

Rebate scissors for bottom hung sashes of windows, doors or the like "

The invention relates to folding scissors according to the preamble of the claim 1.

It is known that tilt sashes, especially skylight sashes of windows, Doors or the like by means of a push rod and one through this operated scissor stay between the closed position and a predetermined maximum Can tilt tilt position in the closing direction and opening direction. To the wings also being able to clean comfortably without having to clean from the outside it is also known to use the coupling between the opening scissor and the wing Unhook by hand, so that the wing is now free of its lower horizontal tilt axis can be pivoted to the interior of the room in a plastering position.

It is also known, the tilt position of a tilt window with the help of a in the side sash rebate arranged extension arm or a corresponding one Limit folding scissors. The limitation can be due to the extended position of the scissors or but also adjustable in different opening positions of the scissors take place. Even with these simple folding scissors, however, there must be a decoupling between Scissors and sash take place when the sash is over the maximum tilt position in the Cleaning position should be swiveled further.

Experience shows, especially with bottom hung sashes with fanlight openers, that by inattentiveness or by incorrectly hanging the wing into the coupling of a Shear personal injury or property damage caused by knocking down the window sash.

To remedy this, it is known to use simple folding scissors to be designed in such a way that in the extended position it holds the sash in the cleaning position, but beyond that it can take an intermediate position, which is only a little beyond the maximum tilt position of the sash. The two folding scissors are for this purpose not only pivotable at their connection point, but also via a longitudinal slot Slidably connected to one another, one scissor part with its free extended end over the entire opening area determined by the fanlight opener and a little more in a separate fold on the frame part Locking member is locked, so that if the wing is careless, initially only a little can tilt beyond the maximum ventilation position.

In order to be able to bring the sash into the cleaning position, it must be done by hand the free protruding end of the folding scissor part hinged to the frame the solid lock pushed out to the side be so that then the wing can be pivoted into the putat position while stretching the scissors can. The known device requires another part attached to the wing, which attacks the folding shear parts during the closing movement from the cleaning position to shortly before reaching the closed position of the sash during its closing movement protruding free end of a folding scissors part back into the locking part on the frame.

Although this known arrangement provides a certain protection against Personal injury or damage to property due to carelessness or incorrect hanging of the sash. However, the device is very complex and consists of many parts that are individually must be attached to the frame parts in precise alignment with one another.

Another disadvantage is that when the wing is out the cleaning position is not completely transferred to the closed position, the desired securing does not occur because one of the folding scissors part snaps into place in the locking part on the frame only practically when the closed position is reached of the wing takes place. The protection achieved is therefore only very imperfect.

It is the object of the invention to remedy this and a pair of folding scissors the type described in more detail at the beginning so that with much simpler and cheaper construction and much easier and faster assembly better protection against personal injury or property damage is guaranteed.

This task is carried out with the features of the characterizing part of the claim 1 solved.

Due to the new training, a simple standard folding scissors will be used assumed, as it is known for the tilt angle limitation of tilt bars This Folding scissors leading to the sash in the cleaning position is simply so further developed that a pawl interacts with the two folding scissors parts, which is arranged on the two-part folding scissors. The scissors thus consist of a single unit completed from the manufacturing process which only, like simple folding scissors over the free ends of the two folding scissors parts needs to be attached to the frame and the casement. Additional loose parts, which can be lost are not intended and also not required. It is therefore not necessary, such loose parts separately and in precise adaptation to attach to the scissor function on the frame parts. Nevertheless, such a grant The pawl acting on both parts of the scissors ensures reliable interception of the wing after unhooking the actuation stay and if the maximum is slightly exceeded Tilt or ventilation position. Another major advantage is that when swiveling back from the cleaning position, the pawl automatically moves into its Effective catching locked position returns as soon as the wing is slightly over the maximum Ventilation position has also been moved towards the closed position. It it is therefore not necessary to first move the wing into the closed position convict, to restore the protective effect of the facility.

In one embodiment, the pawl can be in an elongated hole have an effective catch in the catch position, in which a pin on the one Part of the scissors engages. However, the pawl can also rest in an elongated hole have both for the catching position and for the cleaning position, the detent can be formed for the plaster position through the end of the elongated hole. Also in In this case, a pin of a scissor part engages in this elongated hole.

The pawl is designed like a handlebar. She is with an end firmly hinged to one part of the scissors, while with the other part of the scissors is both pivotably and slidably connected via the slot connection. The arrangement is made so that the pawl depending on the Movement of the sash into the sash closed position in one of the two folding scissor parts parallel position is automatically controllable. The two scissor parts and the latch are therefore in the sash closed position in the direction transverse to the rebate thickness in alignment one above the other, with the pawl lying outside or between the scissor parts can.

In some cases, a biasing element may be provided to the Pawl around the fixed point of articulation on one of the scissors in the direction of the Locked position or catch position bias, the invention will below with reference to schematic drawings of two exemplary embodiments explained.

Fig. 1 shows a sash in a vertical section for exposure of the side fold and the folding scissors built into the fold according to the invention in the closed position of the sash.

FIG. 2 shows the folding scissors in a representation similar to FIG. 1 Catch position.

Fig. 3 in a representation similar to Fig. 1, the folding scissors in the cleaning position of the wing and FIGS. 4 to 6 and 7 to 9, respectively, in corresponding representations like FIGS. 1, 2 and 3, two further modified embodiments of the new Folding scissors in the various positions.

In Fig. 1 the wing 2 is in its closed position on the frame 1 shown. Between the parts in this position are lateral Formed folds, one of which is cut off by the illustration in FIG. 1 and is designated by 3.

Folding scissors 4 are built into the side fold. These are formed in the usual way and consists of the folding scissors parts 5 and 7, the with their overhead ends at 6 and at 8 on the frame 1 and the casement 2 are hinged to fixed pegs. The two folding scissors parts 5 and 7 are with their other ends on the pivot pin 9 with one another in an articulated connection.

In the example shown according to FIGS. 1 to 3, the folding scissors part is 7 extended beyond the common pivot pin 9 also at 10 and carries on his free end a protruding to the pin 9 approach or pin 15 in the illustrated Embodiment is assumed that the folding scissors part 7 inside, so the wing is closest. The pin 15 protrudes from the extended end 10 over the pivot plane of the folding scissors part 5 further out and forms with the folding scissors part 5 a fixed stop to limit the opening angle 13 of the folding scissors in the cleaning position according to FIG. 3.

The folding scissors 4 is assigned a pawl 16. This is in Example shown as an elongated handlebar with one end at 17 between the ends of the folding scissors part 5 is firmly hinged to this. About the greater part An elongated hole 18 runs along its length, into which the projection 15 at the extended end 10 of the scissors part 7 engages. The elongated hole 18 has a gradation between its ends or Eangschulter or notch 19 on.

The arrangement is such that, as can be seen from FIG. 1, in the closed position of the leaf 2, all three are fixed, i.e. already during manufacture interconnected parts 5, 7 and IG parallel to each other in the direction of the fold width and are arranged in alignment one above the other. In this position is the approach 15 in the lower extension of the slot 18. With the usual tilting movements of the sash to produce the ventilation position, which movements are not caused by a Skylight opener linkage shown is determined, the folding scissors are in one passive catch position, so it has no influence on the ventilation movement of the wing. When the sash is detached from the scissors of the skylight opener, around the sash in the cleaning position or if the sash is hung again after cleaning and the sash is over the maximum ventilation position, which is set by the fanlight opener is determined, pivoted out in the opening direction, then occurs as a result of this movement the approach 15 in the provided in the slot 18 detent 19. This is the other Tilting movement beyond the tilting angle shown at 12 in FIG. 2 is also excluded. Only when a person pulls the pawl around its fixed pivot point 17 in the direction of the arrow 16a according to FIG becomes free, the wing can move from the position of Fig. 2 to the position of Fig. 3 are pivoted, the projection 15 slides up in the elongated hole 18 in the the cleaning position determining the angle 13 according to FIG. 3.

When the wing from the cleaning position according to Fig. 3 again to hang is pivoted back into the fanlight opener, the approach 15 arrives at a slight Falling below the angle 12 according to FIG. 2 again in the catch position according to FIG. 1 and 2. It is therefore not necessary to return to the closed position near FIG. 1. After hanging the fanlight opener, the sash 2 can about its tilt axis 2a be pivoted again into the closed position according to FIG.

In the embodiment according to FIGS. 1 to 3, the pawl is located 16 with respect to the scissor parts 5 and 7 outside.

In the embodiment according to FIGS. 4 and 6, the pawl is located 30 in the fold between the two scissor parts 21 and 23, which in turn with their outer Ends 22 and 24 are hinged to the casement or frame and at 26 to each other are articulated. The pawl 30 is between the ends of the folding shear part 21 firmly hinged to this at 31.

The pawl 30 also has an elongated groove 32, into which a pin 34 engages, which is provided between the ends of the scissor part 23 is. The groove or the slot 32 has a catching or locking shoulder between its ends 33 to which the approach 34 automatically engages when the wing over the maxiamel Ventilation position is moved in the direction of the cleaning position, be it that this further movement by the operator or as a result of careless handling of the fanlight opener. The wing is thus in position 5 reliably secured against falling down into the cleaning position. Around to be able to swivel the sash into the cleaning position, must be on the upper end of the pawl a pressure can be exerted in the direction of arrow 30a, so that the pawl of the Approach 34 comes free and the approach 34 can slide into the slot 32 until in the Cleaning position according to Fig. 6 either the approach 34 with the end 40 of the groove 32 to limit the plaster position interacts or the pawl 30 on an extended Approach of the pivot pin 26 of the connection between the folded parts 21 and 23 lies, as can be seen from Fig0 6. The functioning of the folding scissors according to the 4 to 6 correspond to that of FIGS. 1 to 3 and therefore do not need to be used here to be explained in more detail.

In both exemplary embodiments, the pawl can, if necessary by a spring or by a weight or the like around its pivot pin 17 or 31 in the direction of the locking position, i.e. in the direction opposite to the arrows 16a and 30a be biased to ensure that the pawl is in the ventilation area of the wing always assumes the catching position.

The embodiment according to FIGS. 4 to 6 has, compared to that according to FIG. 1 to 3 still have the advantage that the pawl is only ever used on train, thus can be easily produced accordingly.

In the embodiment of FIGS. 7 to 9, the two are Folding scissors parts 40 and 41 at one end at 42 on the frame, and at 43, respectively firmly hinged to the casement. The two scissor sections are also between their two ends articulated together at 44 so that they are a cross shear form. The free ends 45 and 46 protruding beyond the articulated connection 44, each carry tenons 50,51.

The pawl 47 is firmly hinged to the pin 50, which in turn has an elongated hole 48 with an effective detent 49. The elongated hole and the rest work with the pin 51 on the other scissor section together in the manner as this is explained in the examples described above. From that shown in FIG Locking position can the pawl according to the arrow 52 - if necessary against the effect of an elastic biasing force - be pressed down. Thereon the wing is free until it reaches the position according to FIG. 7, in which by applying of the pin 51 at the end of the slot 48 determines the maximum opening leg will. In Fig. 9, the vertical closed position is shown in which all parts of the Scissors are concealed parallel to each other in the fold. Blank page

Claims (9)

Claims S rebate scissors for bottom hung sashes of windows, doors or the like, esp. Tilting sash with scissors-shaped, for pivoting the sash into a cleaning position Opening device that can be detached from the sash, in which in a safety position the folding scissors these the sash when it is exceeded by the opening device conditional maximum opening angle and only after loosening by hand the Pivoting further into the cleaning position releases, thereby g e -k e n n z e i c h n e t that on a conventional two-part scissors (4 or 20) one with the scissor parts (5,7 or 23,21) cooperating pawl (16 or 30) is provided. 2. Folding shears according to claim 1, characterized in that g e k e n n z e i c h -n e t that the pawl in an elongated hole (18) is effective in the catching position Has latch (19). 3. Folding shears according to claim 1, characterized in that g e k e n n z e i c hn e t, that the pawl in an elongated hole (32) has a detent (33, 40) both for the catching position as well as for the cleaning position. 4. Folding shears according to claim 1 to 3, characterized in that g e k e n n -z e i c n e t that the handlebar-like pawl (16 szw. 30) depending on the movement of the sash into the sash closed position automatically controllable in a position parallel to the two folding scissor parts is. 5. Halzschere according to claim 1 to 4, characterized g n k e n n -z e i c h n e t that the pawl depends on the return movement of the wing the plaster position out when falling below the determined by the opening device maximum opening position is automatically controllable in the catch position. 6. Folding shears according to claim 3 to 5, characterized in that g e k e n n -z e i c h n e t that the pawl (16) on the outside of the folding scissor part (5) is firmly hinged and with a control pin (15) on the over the connection point (9) of the two folding scissors parts protruding section (10) of the inner one Folding scissors part (7) receives in the elongated hole (18). 7. Folding shears according to claim 3 to 5, characterized in that g e k e n n -z e i c h n e t that the pawl is between the two folding scissors parts (21,23) and with one end fixed and with the other end slidable over the elongated hole each articulated to this in areas between the ends of the two folding scissor parts is. 8. Folding shears according to claim 1 to 7, characterized in that g e k e n n -z e- i c h n e t that the pawl by an elastic biasing element around the fixed The pivot pin on one of the folding scissors parts is biased towards the catch position is. 9. folding shears according to one or more of claims 3 to 5 and 8, as a result, that the two folding scissor parts (40, 41) are attached a point (44) are hinged together between their ends and the The pawl (47) is firmly hinged to the free end (46) of one of the folding scissors part (40) is and a control pin (51) at the free end (45) of the other folding shear part receives in the elongated hole (48).