Insect screen sliding system

Abstract

Insect protection sliding system with a sliding guide (12) that can be mounted in front of an opening to be shielded, has a lower guide rail (14) and an upper guide rail (16), and at least one sliding sash (18) that can be displaced in the sliding guide (12), is composed of profile legs (22) as a profile frame and is provided with an insect protection grille (32), characterized in that the sliding sash (18) is held in the upper guide rail (16) by means of a securing device (20) while limiting its guide play and / or its displacement path, wherein the securing device (20) has at least one engagement element (36) mounted on the sliding sash (18), is vertically movable under the restoring force of a restoring element (40) and engages with the upper guide rail (16), wherein the engagement element (36) has an upwardly projecting latching part as a blocking member (44),which engages in an end position of the sliding sash (18) under the effect of the restoring force of the restoring element (40) on the upper guide rail (16).

Description

[0001] The invention relates to an insect screen sliding system with a sliding guide which can be mounted in front of an opening to be screened and which has a lower guide rail and an upper guide rail, and at least one sliding sash which can be moved in the sliding guide and which is composed of profile legs as a profile frame and is provided with an insect screen.

[0002] In insect screen sliding systems, at least one sliding sash is installed in front of an exit or window in a building in order to provide a variable insect screening effect within the opening area. The sliding sashes are usually installed in a mounting frame, which often only has a small installation depth. A small amount of lateral play must be ensured, with sliding guidance in the upper frame area being ensured with, if possible, no direct contact between the metal profile components. In addition to securing the guide play, another problem is securing the end positions of lightweight sliding frames running on rollers, for example, in the event of wind. Until now, friction-locked braking elements in the mounting frame have been used for this purpose; however, these are very sensitive to tolerances.

[0003] A generic insect screen door is known from DE 10 2010 023 443A1.

[0004] JP 2005-9076 A discloses a safety device for a sliding door for a bathroom, which is held in engagement on an upper rail by a vertically movable guide element.

[0005] Based on this, the invention is based on the object of further improving the devices known in the prior art and of ensuring increased functionality and operating safety with low construction and assembly costs.

[0006] To solve this problem, the combination of features specified in claim 1 is proposed. Advantageous embodiments and further developments of the invention emerge from the dependent claims.

[0007] The invention is based on the idea of ​​creating a securing device with automatic movement into the active position. Accordingly, the invention proposes that the sliding sash be held in the upper guide rail by means of a securing device, limiting its guide play and / or its displacement path. The securing device has at least one engagement element mounted on the sliding sash, which can be moved vertically upwards under the restoring force of a restoring element and engages with the upper guide rail. The engagement element has an upwardly projecting latching section as a blocking element, which latches onto the upper guide rail in an end position of the sliding sash under the action of the restoring force of the restoring element.This makes it possible to ensure automatic preloaded engagement with tolerance compensation, without the need for prior manual readjustment or adjustment. The locking device can thus be pre-assembled, requiring no further adjustment during on-site installation. At the same time, the vertical adjustment range allows for the influence of the release play via the return force of the return element. The inhibiting retention force can be variably adjusted by appropriate preload of the retention element.

[0008] Advantageously, the engagement element has a guide part that engages in a space between the upper guide rail and an upper profile leg of the sliding sash and thus reduces lateral guide play or prevents metallic frame parts from sliding against one another.

[0009] For this purpose, it is advantageous if the guide part is fork-shaped and encompasses a downwardly projecting guide web of the upper guide rail on both sides.

[0010] In this context, it is also advantageous if a locking counterpart is attached to the upper guide rail for the positive reception of the engagement element.

[0011] To facilitate installation, it is advantageous if the locking counterpart can be pre-assembled on the upper guide rail using a plug-in or clip connection.

[0012] A particularly preferred embodiment provides for the return element to be formed by a return spring, in particular a compression spring. This allows a preloaded vertical adjustment path to be realized through the spring travel. It is also conceivable to use rubber-elastic or magnetic return means.

[0013] Advantageously, the engagement element is mounted vertically displaceably in a profile area of ​​the profile frame, so that no additional guidance is required.

[0014] For a defined effective position, it is advantageous if the engagement element is limited in its vertical displacement path upwards by a stop.

[0015] Advantageously, an engagement element is mounted in each of the two vertical profile legs of the sliding frame, so that precise lateral guidance is provided over the length of the frame and, if necessary, different functionalities can be used.

[0016] An advantageous embodiment provides that the securing device has a clamping piece that can be clamped onto the sliding sash to support the return element. It is further advantageous if the clamping piece is arranged on the sliding sash so that it can be adjusted in height, limiting the displacement of the engagement element, so that a desired preload of the return element can be set and / or the sliding sash can be secured against vertical lifting out of the sliding guide. The force required for unhinging or for releasing an end-position lock is determined according to the preload of the return element.

[0017] In order to facilitate handling during assembly, it is advantageous if the clamping piece is connected to the engagement element as an assembly unit via connecting means under pre-tension of the return element.

[0018] To ensure robust movement limitation of the sliding sash, it is advantageous if an end position stop, preferably designed as a metal angle, is arranged on the guide rail.

[0019] In the following, the invention is explained in more detail using an embodiment shown schematically in the drawing. Fig. 1 a side view of an insect screen sliding system with a safety device to prevent lifting or to limit the movement of a sliding sash; Fig. 2 and Fig. 3 the safety device in a transparent corner section of the sliding sash in two sliding positions; Fig. 4 a vertical section along the section line 4 - 4 of the Fig. 3; and Fig. 5 a component of the safety device that can be mounted in the sliding sash in a perspective view.

[0020] The insect screen sliding system 10 shown in the drawing comprises a sliding guide 12 with a lower guide rail 14 and an upper guide rail 16, at least one sliding sash 18 which can be moved horizontally in the sliding guide 12 and a securing device 20 against lifting and / or unintentional displacement and / or lateral tilting of the sliding sash 18. The sliding guide 12 can preferably be mounted as a building-fixed mounting frame on the outside in front of a building opening which is to be shielded against the penetration of insects, so that the sliding sash(s) 18 can be moved over a displacement path between two end positions while shielding or uncovering the building opening (window or door).

[0021] As in Fig. 1, the sliding sash 18 is a rectangular profile frame composed of four mitered profile legs 22 with a uniform profile all the way around. In this way, a profile groove 24 is formed which is open outwards in the frame plane and in which various functional elements can be installed. In the profile groove 24 of the lower horizontal profile leg 22 there are two rollers 26 which roll on an upwardly facing track 28 of the guide rail 14. The flanks of the profile groove 24 engage around the track 28 on both sides. The securing device 20 comprises two installation units 30 which are inserted into the profile groove 24 of the vertical profile legs 22 and project upwards. The frame opening delimited by the profile legs 22 is spanned by an insect screen 32. This is fixed at the edge in a track groove 34 of the profile legs 22 by means of a circumferential piping cord.

[0022] As well as from Fig. 5, the installation units 30 of the securing device 20 essentially consist of an engagement element 36, a clamping piece 38 and a spring-elastic return element 40. The engagement element 36 and the clamping piece 38 are formed as injection-molded parts made of plastic.

[0023] A guide part in the form of two fork-shaped, upwardly pointing guide ribs 42 is formed on the engagement element 36. Furthermore, the engagement element 36 has an upwardly projecting locking member formed by two locking cams 44 projecting from the guide ribs 42. The cuboid-shaped base body of the engagement element 36 is adapted to the cross-section of the profile groove 24 for positive insertion.

[0024] The clamping piece 38 has a transverse bore 46 provided with an internal thread, in which a grub screw 48 is located for clamping in the profile groove 24. To create an easily handled assembly unit, the clamping piece 38 is connected to the engagement element 36 via two fork-shaped coupling members 50. The coupling members 50 are longitudinally displaceable in guide grooves 52 of the engagement element 36, with a stop engaging behind the guide grooves 52 ensuring an extension limit in the extended position shown.

[0025] The return element 40 is formed by a helical compression spring that is held under preload in the connection between the clamping piece 38 and the engagement element 36. A spring pin 52 projecting into a bore in the engagement element ensures that the spring 40 does not deflect laterally.

[0026] The Fig. 2 to 4 illustrate the installation position of the installation units 30 in the upper corner area of ​​the profile frame or sliding sash 18. For this purpose, the clamping piece 38 can be fixed in the profile groove 24 at a desired height by screwing the grub screw 48 against the groove base. An undercut inner edge 54 in the groove flank acts as an abutment for the positive transverse support of the clamping piece ( Fig. 2, Fig. 3). In the upper profile leg 22, this inner edge 54 acts as a stop for a shoulder 56 of the engagement element 36, so that its upward displacement is limited. From this upper stop position, the engagement element 36 can be moved downward against the restoring force of the spring 40, whereby the downward displacement is limited by the clamping piece 38 or the block length of the spring 40. By raising the clamping piece 38, the spring preload can be increased and the maximum displacement reduced.

[0027] In the upper position of the engagement element 36, the two guide ribs 42 engage around a downwardly projecting guide web 58 of the upper guide rail 16 on both sides, as best seen from Fig. 4. The guide ribs 42 engage in the space between the profile groove 24 between its groove flanks formed by brush guides 60 and prevent lateral tilting of the sliding sash 18, so that no metallic profile elements come into sliding contact.

[0028] A further function of the engagement element 36 is to lock the sliding sash 18 in the end position shown in Fig. 1 and Fig. 3 (left) end position shown. For this purpose, a locking counterpart 62 is attached to the upper guide rail 16 for the positive engagement of a locking cam 44 of the engagement element 36. The locking counterpart 62 can be pre-assembled without tools using a clip connection 64 and then fixed in a rotationally fixed manner using a screw 66. When the sliding sash 18 is moved, the spring-loaded locking cam 44 slides over a ramp into a receiving recess 68 of the locking counterpart, whereby this locking position can be released again by applying an increased displacement force against the restoring force of the spring 40. To additionally secure the end position, an end position stop formed by a metal angle 70 is attached to the guide rail 16 in conjunction with the locking counterpart 62.

[0029] With sufficient displacement of the engagement element 36 relative to the clamping piece 38, the sliding sash 18 can be suspended by engaging the engagement element 36 with the guide rib 58 of the upper guide rail 16, and then raising the sliding sash 18 in a slightly tilted position, wherein the engagement element 36 is displaced downward under compression of the spring 40 until the edge or groove flank of the lower profile leg 22 can be lifted laterally over the track 28 of the guide rail 14. When the sliding sash 18 is subsequently lowered, the engagement element 36 is automatically held in engagement with the guide rib 58 by means of the return spring 40.

[0030] The unhinging of the sliding sash is carried out in the reverse manner and can be easily prevented by blocking the displacement path of the engagement element 36 by raising the clamping piece 38. Such an unhinging protection can also be implemented on one side only, for example in the arrangement according to Fig. 1 the engagement element 36 is blocked in the upper right corner of the frame, while the engagement element in the left corner of the frame is kept movable for the end position locking.

Claims

[1] Insect protection sliding system with a sliding guide (12) which can be mounted in front of an opening to be shielded and has a lower guide rail (14) and an upper guide rail (16) and at least one sliding sash (18) which can be displaced in the sliding guide (12), is composed as a profile frame of profile legs (22) and is provided with an insect protection grille (32), characterized byin that the sliding sash (18) is held in the upper guide rail (16) by means of a securing device (20) while limiting its guide play and / or its displacement path, wherein the securing device (20) has at least one engagement element (36) mounted on the sliding sash (18), which is vertically movable under the restoring force of a restoring element (40) and engages with the upper guide rail (16), wherein the engagement element (36) has an upwardly projecting latching part as a blocking member (44) which latches into the upper guide rail (16) in an end position of the sliding sash (18) under the effect of the restoring force of the restoring element (40). [2] Insect protection sliding system according to claim 1, characterized by that the engagement element (36) has a guide part (42) which engages in a space between the upper guide rail (16) and an upper profile leg of the sliding sash (18). [3] Insect protection sliding system according to claim 2, characterized by that the guide part (42) is fork-shaped and engages around a downwardly projecting guide web (58) of the upper guide rail (16) on both sides. [4] Insect protection sliding system according to one of claims 1 to 3, characterized by that a locking counterpart (62) for positively receiving the engagement element (36) is attached to the upper guide rail (16). [5] Insect protection sliding system according to claim 4, characterized by that the locking counterpart (62) can be pre-assembled on the upper guide rail (16) by means of a plug-in or clip connection (64). [6] Insect protection sliding system according to one of claims 1 to 5, characterized by that the return element (40) is formed by a return spring, in particular a compression spring. [7] Insect protection sliding system according to one of claims 1 to 6, characterized bythat the engagement element (36) is mounted vertically displaceably in a profile area (24) of the sliding sash (18). [8] Insect protection sliding system according to one of claims 1 to 7, characterized by that the engagement element (36) is limited in its vertical displacement path upwards by a stop (54). [9] Insect protection sliding system according to one of claims 1 to 8, characterized by that an engagement element (36) is mounted in each of the two vertical profile legs (22) of the sliding frame. [10] Insect protection sliding system according to one of claims 1 to 9, characterized by that the securing device (20) has a clamping piece (38) which can be clamped to the sliding wing (18) for supporting the return element (40). [11] Insect protection sliding system according to claim 10, characterized bythat the clamping piece (38) is arranged to be height-adjustable on the sliding wing (18) while limiting the displacement path of the engagement element (36), so that a desired pre-tension of the return element (40) can be set and / or the sliding wing (18) can be secured against vertical lifting out of the sliding guide (12). [12] Insect protection sliding system according to claim 10 or 11, characterized by that the clamping piece (38) is connected to the engagement element (36) as an assembly unit via connecting means (50) under pretension of the return element (40). [13] Insect protection sliding system according to one of claims 1 to 12, characterized by that an end position stop (70), preferably designed as a metal angle, is arranged on the guide rail (16) to limit the movement of the sliding sash (18).

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