Insect protection door

Abstract

Insect screen door comprising a rectangular sash frame (4) made of several frame profiles (9, 10, 11, 12), which in the installation position is pivotably mounted on a mounting or cover frame (2) via at least two hinge fittings (3a, 3b, 3c), wherein each hinge fitting (3a, 3b, 3c) comprises a hinge top part (18, 33) and a hinge bottom part (19, 34) as well as a pin (20) forming a pivot axis and inserted into mutually aligned receptacles on the hinge top and bottom parts (18, 33, 19, 34), and a sliding element by means of which the hinge top part (18, 19) is slidably mounted on the hinge bottom part (19, 34), wherein the sliding element is a bushing (22) receiving the pin (20) in a bore (23), which is inserted into one of the receptacles and has an end bearing collar (24), which is located between the upper and lower hinge parts (18, 33, 19, 34).

Description

[0001] The invention relates to a hinge fitting for an insect screen door. The hinge fitting comprises an upper hinge part and a lower hinge part, as well as a pin forming a pivot axis and inserted into aligned receptacles on the upper and lower hinge parts, and a sliding element via which the upper hinge part is slidably mounted on the lower hinge part. Furthermore, the invention relates to an insect screen door comprising a rectangular sash made of several frame profiles, which, in the installed position, is pivotably mounted on a mounting or cover frame via at least two hinge fittings, wherein each hinge fitting comprises an upper hinge part and a lower hinge part, as well as a pin forming a pivot axis and inserted into aligned receptacles on the upper and lower hinge parts, and a sliding element via which the upper hinge part is slidably mounted on the lower hinge part.

[0002] Such an insect screen door is usually installed as a front door in front of a permanently installed door in the building, for example a patio or balcony door. It usually comprises a rectangular sash frame made up of four mostly mitered frame profiles, usually extruded aluminum profiles, which are pressed together using suitable connecting elements. The sash frame itself is arranged, for example, in a mounting frame that is fixed to the building. The sash frame is pivotally mounted on this mounting frame via at least two hinge fittings so that it can be pivoted relative to the frame. The insect screen door can be a door that can only be pivoted to one side, meaning that in the closed position it runs against a stop or the mounting frame.Alternatively, it can be a swing door, meaning the sash can swing to either side thanks to the mounting frame. Alternatively, the sash can be attached to a door frame and pivoted.

[0003] The pivot bearing is achieved via at least two hinge fittings, each comprising an upper hinge part and a lower hinge part as well as a pin forming a pivot axis, which is inserted into two aligned receptacles on the upper hinge part and the lower hinge part. The pin is usually fixed in one of the receptacles, for example glued or pressed in, while it is movably held in the other receptacle; alternatively, the pin can also be loosely inserted and supported in the lower hinge part. The receptacles are cylindrical holes that are aligned with one another. The upper hinge part is fastened to the sash frame, for example, while the lower hinge part is arranged on the mounting or outer frame, so that the sash frame is supported on the lower hinge parts and thus on the mounting or outer frame via the upper hinge parts. This means that the weight of the sash frame rests on the lower hinge parts.Since the upper hinge parts move relative to the lower hinge parts when the sash is pivoted, a sliding element in the form of a sliding disc is usually placed between the upper and lower hinge parts. This creates a sliding bearing that allows the sash to swing open and closed smoothly, while also preventing the usually metal upper hinge parts from abrasive movement on the equally metal lower hinge parts.

[0004] The disadvantage, however, is the installation of the sliding washer, which must be positioned between the upper and lower parts of the hinge and through which the pin must be guided. This is particularly laborious when this has to be done simultaneously on at least two hinge fittings.

[0005] A technical background relevant to the present invention is provided by document EP 2 025 845 A1. This document discloses a hinge fitting for a door, comprising a frame-side, lower hinge body and a leaf-side, upper hinge body, each with a through-opening. Furthermore, a bushing is provided which is inserted into the through-opening from above, wherein a collar-shaped edge of the bushing abuts the lower hinge body. Furthermore, a bearing pin is inserted into a through-opening of the bushing, wherein the bearing pin is held captive in the bushing by means of a holding device. The leaf-side, upper hinge body is positioned on the frame-side, lower hinge body by means of the bearing pin inserted into its through-opening. The bearing pin is fixed by means of a screw.

[0006] CH 705 664 A2 discloses a hinge with two hinge lobes that can be attached to a frame on the one hand and a door on the other. A bearing bush is inserted into each of the coaxially positioned bearing eyes of the hinge lobes. These bearing bushes each have a support flange at their facing ends, which touch each other during assembly. An axle bolt is inserted into the bearing eyes.

[0007] Furthermore, DE 201 18 878 U1 discloses a hinge with a lower and an upper hinge bushing, each connected to a door or frame. A pin is inserted into the bushings, with a support ring fixed to the pin positioned between the bushings in such a way that it is arranged in recesses in the hinge bushings. The pin is rotatably mounted in the lower bushing and non-rotatably mounted in the upper bushing.

[0008] Another hinge for doors is known from DE 69 28 088 U. The hinge comprises an upper and a lower sleeve, in which a pin is arranged. Composite layers are provided between the pin and an inner wall of the sleeve, as well as on a frontal support surface of the sleeve, which provide advantageous sliding properties. The composite layers are in the form of bushings or strips.

[0009] US 2018 / 0 051 500 A1 discloses a hinge assembly having a first and a second hinge component, a hinge pin, and bushing discs each having a tubular bushing body and an annular disc rim.

[0010] Finally, DE 20 2016 100 231 U1 discloses a frame system forming an insect screen door with several longitudinal and transverse profiles, with hinges arranged laterally on the frame system.

[0011] The invention is therefore based on the problem of providing an insect screen door that is improved compared to the prior art.

[0012] This problem is solved according to the invention by means of a hinge fitting according to claim 1 or 2. Furthermore, this problem is solved by means of an insect screen door according to claim 8.

[0013] The insect screen door according to the invention utilizes a bearing bushing that can be easily arranged in one of the receptacles, where it is preferably fixed, namely, glued or pressed in. The bushing engages with a cylindrical bushing part in the respective receptacle and accommodates the pin in a corresponding hollow cylindrical bushing bore. At the same time, the bushing engages with a bearing collar at its end between the two hinge parts, so that both are slidingly mounted on this bearing collar.

[0014] This design has several advantages. Firstly, the assembly of the sliding element is simple, as the bushing is a sufficiently large and therefore easy-to-handle component. It can be easily inserted into a corresponding receptacle on the upper and lower parts of the hinge. This receptacle has a slightly larger diameter than the receptacle on the other hinge part, which only has a diameter corresponding to the pin. The bearing bush itself has a bore diameter that essentially corresponds to the pin diameter, but a slightly larger outer diameter, to which the diameter of the bore or receptacle into which the bearing bush is inserted is matched.In any case, the bearing bush can be easily inserted into the corresponding receptacle in which it is fixed, but it can also be easily pushed in by hand when inserted into the receptacle of the lower part of the hinge and can be easily clamped in place.

[0015] Because the pin is housed in the bushing, the bushing provides a sliding bearing for the pin, which is usually firmly connected to the other hinge part, for example, by compression. This means that the pin moves relative to the other hinge part, with this movement being guided by the sliding bearing bushing, preventing any abrasive engagement of the moving pin with the respective hinge part. This also prevents noise generation.

[0016] Furthermore, the bearing collar provides excellent sliding support for the hinge parts relative to each other. This ensures good sliding guidance in this area as well, eliminating any damage resulting from the relative movement of the hinge parts and the pin.

[0017] According to an alternative embodiment of the invention, the bushing can be inserted into the receptacle of the lower hinge part, into which it is simply inserted. Within the scope of this embodiment, the invention provides that the bushing is glued or pressed into the receptacle of the lower hinge part. In principle, it can also be fixed in the bushing, but this is not mandatory in this case, since the bushing is already fixed in position during assembly, since the bearing collar rests on the end face of the lower hinge part.

[0018] Alternatively, the bushing can be inserted into the receptacle of the hinge upper part and secured there. This means that it is inserted into the receptacle of the hinge upper part during assembly and secured there, preventing it from falling out during frame assembly. In this design, the bushing is glued or pressed into the receptacle of the hinge upper part.

[0019] In this case, the pin is inserted into the receptacle of the lower hinge part or fixed therein, whereas in the previous embodiment it is inserted into the receptacle of the upper hinge part or fixed therein.

[0020] If a bushing is fixed in the respective receptacle, which is provided for according to the invention, it is either glued in or, preferably, pressed in, for which purpose the bushing, which is preferably made of plastic, has a slightly larger diameter than the bore diameter or receptacle diameter.

[0021] The bearing collar itself should have an outer diameter of no more than 8 mm so that it does not protrude beyond the outer circumference of the hinge parts.

[0022] The socket that holds the bushing should have a maximum diameter of 6 mm, meaning that the bushing also has an outer diameter of 6 mm. This ensures that the remaining hinge part wall is sufficiently dimensioned, despite a larger diameter than the diameter of the socket provided on the other hinge part that holds the pin.

[0023] The pin, its receiving bore, and the bushing bore should have a maximum diameter of 4 mm. Overall, the corresponding diameter gradation results in a sufficiently stable design.

[0024] The bushing itself is preferably made of plastic, although almost any plastic with suitable sliding properties can be used. Polyoxymethylene (POM) is preferred.

[0025] As already mentioned at the beginning, in addition to the insect screen door, the invention also relates to a hinge fitting for an insect screen door of the type described above. The hinge fitting according to the invention is a hinge fitting according to claim 8.

[0026] The bushing can be factory-installed and preferably also fixed in the receptacle of the hinge base; alternatively, it can also be pre-installed. In the case of fixation provided for in the invention, it is either glued or pressed into place.

[0027] Alternatively, the bushing can be factory-installed or ready-to-install into the hinge upper part. Here, too, it can be factory-installed and secured in place, but this can also be done on-site. The securing provided for in the invention is achieved by gluing or pressing, although this pressing is easier if the bushing is made of plastic.

[0028] The pin is secured in the receptacle that is not provided with the bushing, or is to be provided with it. This can also be done by gluing or pressing. This can also be done at the factory, but can also be done on-site.

[0029] The bearing collar itself should have an outer diameter of no more than 8 mm, while the socket that holds the bushing should have a diameter of no more than 6 mm. The pin, on the other hand, should have a diameter of no more than 4 mm.

[0030] A sliding plastic, preferably POM, is expediently used as the material for the bushing.

[0031] Further advantages and details of the invention will become apparent from the following exemplary embodiments and the accompanying drawings. These schematically show: Fig. 1 a perspective view of an insect screen door according to the invention, Fig. 2 an exploded view of a hinge fitting according to the invention of a first embodiment, Fig. 3 the hinge fitting from Fig. 2 in the assembled position, and Fig. 4 an exploded view of a hinge fitting according to the invention of a second embodiment.

[0032] Fig. 1 shows an insect screen door 1 according to the invention, comprising in the example shown a mounting frame 2 and a sash frame 4 pivotally mounted therein via corresponding hinge connections 3a, 3b and 3c, which in the example shown is pivoted out to one side. The sash frame 4 can be pivoted out only on one side, alternatively it can also be pivoted out to both sides, thus being a swing door. The mounting frame 2 consists of four mitered frame profiles 5, 6, 7, 8, which are fixed or pressed together in the area of ​​the edges via corresponding connecting elements. In the installed position, the mounting frame 2 is fixed in position on the building side.

[0033] The sash frame also consists of four frame profiles 9, 10, 11, 12, which are mitered and connected to one another, preferably by pressed joints, in the corner area via corresponding connecting elements. In the lower area there is a horizontally running stiffening bar 13 and a sheet metal panel 14 filling the lower area. In the middle area there is a bar 15, which extends from one vertical frame profile 10 to the other vertical frame profile 11 and is in turn fixed to these via corresponding connecting elements. The open frame areas above and below the bar 15 are filled with corresponding insect screens 16, 17, which are fixed in a uniquely known manner via a piping provided in a circumferential groove on the corresponding frame profiles as well as the connecting strut 13 and the bar 15.

[0034] The basic structure of such an insect screen door is well known.

[0035] Fig. 2 shows an exploded view of the hinge fitting 3a from Fig. 1 This consists of an upper hinge part 18, a lower hinge part 19, and a pin 20, preferably made of stainless steel, which is inserted, preferably pressed, into a corresponding, continuous receptacle 21 on the upper hinge part. A corresponding receptacle 21 is provided on the lower hinge part 19, which is also designed as a longitudinal bore. In A bushing 22 is inserted into this, meaning that the diameter of the receptacle 21 essentially corresponds to the outer diameter of the bushing 22. The bushing 22 is preferably pressed into the receptacle 21.

[0036] The bushing 22 in turn has a bore 23 which essentially corresponds to the diameter of the pin 20, which in the assembly position engages in this bore 23 and thus also in the receptacle 21.

[0037] The bushing 22 further has a bearing collar 24 at its end, which in the assembly position comes to lie between the lower end face 25 of the hinge upper part 18 and the upper end face 26 of the hinge lower part 19.

[0038] The bushing 22 itself is made of a plastic sliding material, preferably polyoxymethylene (POM), although other plastics can also be used. It serves, on the one hand, as a sliding bearing for the pin 20, which, as described, engages in the receptacle of the bore 23. The diameter of the bore 23 essentially corresponds to the outer diameter of the pin 20, ensuring good guidance and preventing wobbling.

[0039] In addition, the bearing collar 24 serves to slide the upper hinge part 18 on the lower hinge part 19, whereby the load of the sash frame 4 rests on the lower hinge part 19.

[0040] Fig. 3 shows the hinge fitting 3a in the assembled position. The bearing collar 24 is clearly visible between the upper hinge part 18 and the lower hinge part 19; the pin 20 is otherwise not visible. Only the bushing 22 is visible through a lateral opening 37, which allows access to the corresponding fastening screws used to attach the lower hinge part 19 to the mounting frame 2.

[0041] In the illustrated embodiment, the pin 20 is secured by means of corresponding fastening screws 27, here two grub screws, which are screwed into corresponding threaded holes 28 of the hinge upper part 18. In addition to this type of fixation, it is also possible to press-fit the bearing pin 20.

[0042] The upper hinge part 18 as well as the lower hinge part 19 are fixed to the frame profiles 11 of the sash frame 4 and the mounting frame 2 via corresponding holding sections 29 and 30 in corresponding fastening grooves 31 and 32, respectively. These holding sections 29, 30 are inserted into the corresponding holding grooves 31, 32 and fixed therein via corresponding undercuts, etc. Appropriate screws, which are to be passed through the corresponding hinge parts, serve for positional fastening.

[0043] The basic method of fastening such a hinge part to the sash or mounting frame 4, 2 is well known.

[0044] Fig. 4 shows an embodiment of a hinge part 3b or 3c, again comprising a hinge upper part 33 and a hinge lower part 34. In this embodiment, the pin 20 is inserted into a corresponding receptacle 35 on the hinge lower part 34, while the bushing 22, which in terms of geometry corresponds to the bushing 22 of Fig. 2 corresponds, is inserted into a corresponding receptacle 36 on the hinge upper part 33. In this embodiment, the diameter of the receptacle 36 corresponds to the outer diameter of the bushing 22, which in turn has a corresponding receptacle or bore 23 into which the pin 20 engages.

[0045] Here too, the bushing 22 is preferably pre-fixed in the receptacle 36 so that it cannot fall out downwards.

[0046] In the assembled position, the pin 20 engages in the corresponding bore 23 of the bushing 22 and is guided therein. The bearing collar 24 is located between the upper and lower hinge parts 33, 34, so that these, too, are supported by sliding bearings relative to each other.

Claims

1. Hinge fitting for an insect protection door, - comprising a hinge upper part (18, 33), a hinge lower part (19, 34) and a pin (20) which forms a swivel axis and is inserted into receptacles which are flush with one another on the hinge upper and lower part (18, 33, 19, 34), - wherein a sliding element is provided, via which the hinge upper part (18, 33) is slide-mounted on the hinge lower part (19, 34), - wherein the sliding element is a bushing (22) which receives the pin (20) in a hole (23), is inserted into one of the receptacles and has an end-side bearing collar (24) which is arranged between the hinge upper and lower parts (18, 33, 19, 34), - wherein the pin (20) is slide-mounted in the bushing (22), characterized in that the bushing (22) is inserted into the receptacle of the hinge lower part (19, 34) and is adhesively bonded or pressed into it, - wherein the pin (20) is inserted into the receptacle of the hinge upper part (18, 33) and is fixed therein, wherein the pin (20) is firmly connected to the hinge upper part (18, 33).

2. Hinge fitting for an insect protection door, - comprising a hinge upper part (18, 33), a hinge lower part (19, 34) and a pin (20) which forms a swivel axis and is inserted into receptacles which are flush with one another on the hinge upper and lower part (18, 33, 19, 34), - wherein a sliding element is provided, via which the hinge upper part (18, 33) is slide-mounted on the hinge lower part (19, 34), - wherein the sliding element is a bushing (22) which receives the pin (20) in a hole (23), is inserted into one of the receptacles and has an end-side bearing collar (24) which is arranged between the hinge upper and lower parts (18, 33, 19, 34), - wherein the pin (20) is slide-mounted in the bushing (22), characterized in that the bushing (22) is inserted into the receptacle of the hinge upper part (18, 33) and adhesively bonded or pressed into it, - wherein the pin (20) is inserted into the receptacle of the hinge lower part (19, 34) and is fixed therein, wherein the pin (20) is firmly connected to the hinge lower part (19, 34).

3. Hinge fitting according to Claim 1 or 2, characterized in that the bearing collar (24) has an external diameter of at most 8 mm.

4. Hinge fitting according to one of the preceding claims, characterized in that the receptacle which receives the bushing (22) has a diameter of at most 6 mm.

5. Hinge fitting according to one of the preceding claims, characterized in that the pin (20) has a diameter of at most 4 mm.

6. Hinge fitting according to one of the preceding claims, characterized in that the bushing (22) is made of plastic, in particular polyoxymethylene (POM).

7. Hinge fitting according to one of the preceding claims, characterized in that the pin (20) is adhesively bonded, pressed or fixed via at least one holding screw.

8. Insect protection door, - comprising a rectangular wing frame (4) which consists of a plurality of frame profiles (9, 10, 11, 12) and is mounted on a mounting or cover frame (2) such that it can be swivelled out in the mounting position via at least two hinge fittings (3a, 3b, 3c), - wherein each hinge fitting (3a, 3b, 3c) is - either a hinge fitting according to Claim 1 or according to Claim 1 and one of Claims 3 to 7, - or a hinge fitting according to Claim 2 or according to Claim 2 and one of Claims 3 to 7.

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