DE102015109869A1 - Connecting element for a frame system with cross rung - Google Patents

Abstract

The application discloses a connecting element (14) for connecting profile elements, wherein the connecting element (14) has a base body (141) with a first profile receptacle (142) for receiving a first profile element (11A) in a first receiving direction, a clamping body channel (146) Receiving a clamping body (15), wherein an axis of the sprag channel (146) parallel or collinear to the first receiving direction, and a clamping screw channel (147) for receiving a clamping screw (16) transversely, preferably at right angles, to the first receiving direction, wherein the Clamping screw channel (147) and the clamping body channel (146) are formed such that a in the clamping screw channel (147) received clamping screw (16) when tightening the clamping screw (16) the clamping body (15) in a clamping direction (K) with respect to the first profile element ( 11A). The application also discloses a connection assembly (13) for connecting profile elements, comprising at least one connecting element (14) according to one of the preceding claims and a clamping body (15) and at least one clamping screw (16) or a plurality of clamping screws (16) corresponding to the number of the clamping element (14) provided clamping screw channels (147), wherein the clamping body (15) preferably has a rectangular cross-section. The application further discloses a frame structure with the connection assembly and a plurality of profile elements and a protective grid with the frame structure.

Description

The present invention relates to a connecting element for connecting profile elements according to the preamble of claim 1, a connecting assembly according to the preamble of claim 14, a frame structure according to the preamble of claim 16 and a protective grid according to the preamble of claim 19.

Protective grids, such as insect, pollen or particle screens, are known in the art for protecting door or window openings from the entry of insects, pollen or particles, even when the door or window is open. Frame systems for such grids often have, especially when they are intended for final assembly by the home user, a plurality of cut or mitered hollow profile strips that are perpendicular to each other by plug and / or screw to connect, on. By this construction of a frame structure, which is often brought in the form of a kit on the market, the pack size can be kept small compared to a fully assembled protective grid. In addition, the construction of individual profiles makes it possible to adapt to an actual reveal size of the door or window opening to be protected by simply cutting it to length at the installation site.

To stabilize the shape of such a protective grating, especially in doors, a horizontal crossbar is often provided, which is to be fastened between two vertical struts or longitudinal struts. It is known to divide the struts in the longitudinal direction into two sections, which simplifies handling and reduces the susceptibility to deformation due to the shorter length of the sections. In addition, since doors are usually about half as wide as high, the sections of the longitudinal struts may have approximately the same length as the crossbars and the crossbars, which further reduces the packing size and the bulkiness. As a result, the transport can be simplified and cheapened. However, the division of the longitudinal struts in sections comparatively high demands on the stability of a connection between the sections. For the purposes of this application, the sections as well as the crossbar are also referred to as profile elements.

For connecting the longitudinal strut sections, a connecting element is often provided, to which the transverse rung is also to be connected. The connecting element is formed for example in the form of a T-piece with a base body and thereof projecting T-shaped projecting pins or projections, wherein the projections are designed for insertion into respective hollow profiles of the sections and the cross bar. The main body is further designed to provide respective receptacles and stop surfaces for front ends of the longitudinal strut sections in the longitudinal direction and a front end of the transverse rung in the transverse direction. In this solution, each of the transverse rung and the sections of the longitudinal struts are to be screwed separately with the connecting element. For this purpose, at least three screws (one per profile piece) are required. In practice, however, six screws are often provided to ensure the necessary strength and redundancy. Since the screws are to be passed through holes in the profiles of the longitudinal strut sections and the crossbars to screw it into the pins of the connecting element, an additional step on the profile elements for insertion of these through holes is provided. In addition, the many screws affect the appearance of the frame and increase the assembly effort. Also, at the ends of the profile elements meeting the connecting element, the possibility of cutting to length is limited because of the fixedly positioned through holes or, provided that the screwing points on the connecting element are also fixed, which limits the adaptability to dimensions provided by the customer.

It is an object of the present invention to provide a connecting element or a connection module which makes it possible to connect a cross bar to a longitudinal strut of a frame stably, reliably, simply, with a small number of parts, lower production costs and lower assembly costs or, more generally, Profile elements stable, reliable, easy to connect or connect with low number of parts, lower production costs and lower installation costs, while ensuring the on-site adaptability of the profile elements. This is to be achieved, in particular, by further developing a connecting element of the abovementioned type such that the number of screws required is reduced without revealing the achieved connection strength, and the screw connection (s) is / are provided solely at the connection element. A further object of the present invention is to provide a frame structure for a protective grid, in particular a protective screen door, and such a protective grid, which has the same or corresponding advantages.

The above object is solved by the features of the independent claims. Advantageous developments and preferred embodiments of the present invention form the subject of the dependent claims.

A first aspect of the invention relates to a connecting element for connecting Profile elements. The connecting element has a base body with a first profile receptacle for receiving a first profile element in a first receiving direction, a clamping body channel for receiving a clamping body, wherein an axis of the clamping body channel parallel or collinear to the first receiving direction, and a clamping screw channel for receiving a clamping screw transversely, preferably at right angles to the first direction of shooting. The clamping screw channel and the clamping body channel are formed such that a clamping screw received in the clamping screw channel when tightening the clamping screw urges the clamping body in a clamping direction with respect to the first profile element. In other words, the clamping screw cooperates with the clamping body (and the base body) such that the clamping body clamps the first profile element with the connecting element.

The first profile element may be a frame hollow profile, in particular a frame structure or a frame system or construction kit of a protective grid, such as an insect, pollen or particle protection grid, in particular a protective screen door. The invention is basically applicable to other types of profile elements. In particular, a direction along a central axis of the first profile element away from the end face of the first profile element in the direction of the connecting element can be understood as a first receiving direction, the central axis being parallel or collinear with the longitudinal axis of the clamping body channel. As will be more apparent below in the embodiments, the connector of this aspect of the invention may be configured as an end piece (eg flange piece), longitudinal connector, corner connector or T-connector. The profile receptacle may be a simple surface or a depression in a side surface of the base body. A depression has the advantage that a cutting edge of the profile element is covered by a projection of the depression, whereby the cutting edge quality can be more generous when cutting the profile element, which also accommodates the application in the DIY sector. Alternatively or additionally, the first profile receiving a saddle or pin which is to be inserted in a hollow or semi-open cross-sectional area of the first profile element having. In any case, the first profile receiving the first profile element to allow at least a secure contact with the body of the connecting element.

According to the present invention, the connection of the profile element with the connecting element can take place with only one clamping screw. This considerably simplifies the assembly of the profile element. However, the use of multiple screws for reasons of strength, safety (fail-safe design) or the like is not excluded. Since the clamping screw is received in the connecting element, no screw hole or the like is to be provided on the profile element, which both simplifies and unifies the production of the profile elements and improves the external appearance, and also allows the profile elements to be cut to length as desired.

In one embodiment, the clamping body channel is adapted to a hollow chamber of the first profile element such that a clamp body received in the clamping body channel and protruding beyond the base body of the connecting element extends into the hollow chamber of the first profile element such that the clamping body is tightened by tightening the clamping screw to a first Wall of the hollow chamber is pressed. Under a wall is to be understood in the context of this invention, a wall surface of a wall structure. In other words, the jamming of the first profile element with the connecting element takes place inside the (hollow) first profile element and is therefore inconspicuous. Thereby, the external appearance can be further improved. The sprag channel preferably has a rectangular cross section, so that a cuboid or square rod or plate-shaped sprag can be accommodated therein.

In a further development, the connecting element has a projection, which protrudes from the base body in the region of the first profile receptacle and is adapted to the hollow chamber of the first profile element such that the projection extends into the hollow chamber of the first profile element in such a way that the projection when tightening the Clamping screw to a second wall of the hollow chamber, which is opposite to the first wall, is pressed. In other words, within the hollow chamber of the clamping body and the projection are tightened when tightening the clamping screw away from each other to the first or second wall of the hollow chamber, so that the deadlock between the clamping body, the first profile element and the projection (and thus the connecting element) in Interior of the first profile element takes place without a screw is to be attached to the profile element, since the clamping screw disappears in the connecting element. The jamming within the (closed) hollow chamber of the profile element also contributes to the stability and torsional rigidity of the connection.

In other words, the connecting element in this development has a base body of cuboid or approximately cuboidal shape, a first profile recording in Shape of at least one flat or substantially planar stop surface, which is formed in one side of the body, a sprag channel having a rectangular or substantially rectangular cross-section and from the side of the first profile recording, preferably from the first profile recording, along or in Substantially extends along a solder on the stop surface in the interior of the body, a projection which projects from the side of the first profile receiving, preferably from the first profile receiving, along or substantially along a solder on the stop surface to the outside, and at least one Clamping screw channel which extends at right angles or substantially perpendicular to the sprag channel in the body and communicates with the sprag channel on. Generally speaking, the sprag channel may be referred to as a first channel of rectangular or substantially rectangular cross section, and the pinch bolt channel may be referred to as a second channel of round or substantially circular cross section.

The projection may have an L-shaped cross section, wherein a first leg of the L-shaped cross section has a bearing surface for the clamping body and a second leg of the L-shaped cross section cooperates with the second wall of the hollow chamber of the first profile element. Preferably, the hollow chamber has a third wall and a fourth wall, which respectively connect the first and the second wall, wherein a surface of the projection opposite the bearing surface rests against the third wall of the hollow body and a surface of the clamp body received in the clamping body, the points away from the bearing surface of the projection, abuts the fourth wall of the hollow chamber.

It should be noted that the principle of profiling with projection, which jammed inside the profile element, can be kinematically reversed. For example, the projection can also have a web or the like, which is pressed when tightening the clamping screw to an outer wall of the first profile element, so that a structure of the first profile element having the first wall and the outer wall, between the clamping body and the projection is clamped. The projection can also be in this reversal in particular an extended wall of the projection of the depression of the first profile recording. In a further reversal, the projection can be provided for receiving in the hollow chamber of the first profile element and the clamping body channel be formed so that a clamp body received therein is pressed from the outside onto an outer wall of the first profile element when the clamping screw is tightened. These reversals are not further developed in the present application, but are nevertheless included within the scope of the invention.

In a further development of the sprag channel is adapted to the hollow chamber of the first profile element such that a wall of the sprag channel, which is opposite to the clamp body accommodated in the clamping body clamping direction, has an open space in the region of the first profile recording and from there in the sense of the first recording direction Is withdrawn beyond the region of the clamping screw channel in the clamping direction behind a plane of the first wall of the hollow chamber of the first profile element. In other words, the sprag channel is wider than the sprag itself at least in said areas. That is, when the sprag abuts against the first wall of the hollow chamber of the first profile element, it lies in the area of the flank between the first grommet and the grub screw channel and beyond free in the clamping direction. Thus, the clamping body (seen from the first profile recording from) can be supported only in the clamping direction again beyond the clamping screw channel, so that the clamping screw can effectively push the clamping body in the clamping direction (and thus against the first wall of the hollow chamber). If the free surface were not provided, the clamping body could sit when tightening the clamping screw in the interior of the sprag channel, which would prevent the clamping effect with the first profile element.

In a special embodiment, the base body has a second profile receptacle for receiving a second profile element in a second reception direction, wherein the second reception direction is parallel or collinear with the first reception direction and the second profile reception of the first profile reception is mirror-inverted. In other words, the second profile recording is on the body on the side opposite the side of the first profile recording. In this embodiment, the connecting element can for example be a longitudinal connector, which can be used for longitudinal extension of the first profile element by the second profile element.

A mirror-image corresponding training of the second profile recording is to be understood that basically all features, functions, variants and modifications, which are mentioned above and later in connection with the first profile recording and their interaction with the first profile element and / or explained on the second Profile recording and their interaction with the second profile element provided in a mirror image corresponding manner are, is to be regarded as a mirror plane of a center plane of the body, which is perpendicular to the first recording direction (and thus also to the second recording direction). In particular, it should be understood that the sprag channel may be adapted to a hollow chamber of the second profile element such that a clamping body received in the sprag channel and projecting beyond the base body of the connecting element extends into a hollow chamber of the second profile element such that the sprag is tightened by tightening Clamping screw is also pressed simultaneously to a first wall of the hollow chamber of the second profile element. Furthermore, and in particular, the connecting element may have a further projection, which protrudes in the region of the second profile receiving the base body and is adapted to the hollow chamber of the second profile element such that the further projection extends into the hollow chamber of the second profile element such that the further projection when tightening the clamping screw to a second wall of the hollow chamber of the second profile element, which is opposite to the first wall, is pressed. It should be noted that if two profile elements with the same cross-section or at least the same outer contour and the same position and shape of the hollow chamber to be connected to this connecting element, the first profile and the second profile recording with respective projection can be completely mirror-like, although constructive details, which are not fixed by the definitions made in the claims, may well be different between the first and the second profile recording. If, however, the second profile element is designed differently than the first profile element, that is to be taken into account on the side of the second profile recording, wherein, however, attention must be paid to the mirror-image (functional) equivalent in the sense of this embodiment.

It should be noted that in this embodiment the clamping body accommodated in the base body is supported on the first wall of the first profile element and the first wall of the second profile element and has no contact with the base body in the clamping direction. Therefore, the free surface should extend over the entire length of the sprag channel and be withdrawn in particular in the clamping direction behind a plane of the first wall of the hollow chamber of the first profile element and a plane of the first wall of the hollow chamber of the second profile element.

In another specific embodiment, the sprag channel is adapted to the cross-sectional shape of the first profile element so that the wall of the sprag channel has a support surface adjacent to the flank of the first profile receptacle beyond the gripping screw channel, preferably with the first wall of the hollow section of the first profile element coplanar is. In other words, in this embodiment, the clamping body is supported on the support surface within the base body and on the first wall of the first profile element and is exposed therebetween in the clamping direction. In this particular embodiment, the connecting element is, for example, an end piece, which can serve as a flange piece for connecting the first profile element to another, for example flat, structure. Instead of a co-planar with the first wall of the hollow chamber of the first profile element design of the support surface can be provided that the clamping body has a corresponding change in cross section.

In a development of one of these special embodiments, the main body has a third profile receptacle for receiving a third profile element in a third receiving direction at an angle, preferably at right angles, to the first receiving direction, wherein the clamping screw channel opens into the third profile receptacle. In other words, the third profile recording is on the body on a side of the first profile recording over-adjoining side.

As far as this development relates to the first-mentioned specific embodiment, the connecting element may for example be a corner connector, which can be used to build a corner joint of the first profile element with the third profile element. In this case, a corner connector, the support surface may be provided as in the embodiment of the end connection.

As far as this development relates to the other, second-mentioned, specific embodiment, the connecting element is in particular a T-connector, which can be used to connect the third profile element to a profile section formed by the first profile element and the second profile element (with the connecting element therebetween) , In this sense, the third profile element can be understood as a cross rung and can be understood as the longitudinal strut, the first and the second profile element, together with the interposed clamped connecting element. The above in connection with previous embodiments and further developments for the second and third profile recording said can be applied directly to this embodiment, as far as it is not prohibited by features of this embodiment itself.

Since the clamping screw channel opens into the third profile receiving, the clamping screw can protrude beyond the third profile receiving and in the engage third profile element. If this has a corresponding screw, not only the first profile element (and possibly the second profile element) can be clamped by tightening the clamping screw with the connecting element, but also the third profile element are pressed against the connecting element. Basically, therefore, only a single clamping screw is required to connect up to three profile elements end, longitudinal, transverse or T-structure together. Preferably, two clamping screws and thus two clamping screw channels are provided for reasons of strength and for stabilizing the third profile element in the torsion direction.

The first, second and / or third profile receiving preferably have a recessed stop surface on the base body. The depression simultaneously forms a supernatant, which can serve both for fixing the profile elements and as a cutting edge cover. Alternatively or additionally, the first, second and / or third profile receiving a saddle or the like, which is to be introduced into a hollow cross-section of the third profile element having, which may contribute to further stabilization.

In one embodiment, the clamping screw channel with respect to the clamping direction (i.e., seen from an insertion opening of the clamping screw channel) on this side of the clamping body channel has an internal thread and opens into the clamping body channel. In this way it can also be effected that the clamping screw screwed into the bore presses on tightening on one side of the clamping body inserted into the clamping body channel. In this case, the screw may be a headless screw, such as a grub screw, so that the screw disappears completely in the body. Alternatively, the screw may have a head, but then it must be so long that the screw head does not lie in the mounted state on the outside of the body. This embodiment can be used in particular in the specific embodiments as an end piece or longitudinal connector. In the development with third profile recording this solution is not preferable, since then the third profile element would have to be connected in other ways.

In another embodiment, the clamping screw channel with respect to the clamping direction on this side of the sprag channel on a head receiving, which opens at least partially in the sprag channel. As a result, it can also be effected that a head of a clamping screw accommodated in the clamping screw channel rests in the clamping direction at least proportionally on one side of the clamping body accommodated in the clamping body channel. In other words, the screw head can take the clamp body when tightening and thus provide the clamping effect described above. It is understood that, as far as a portion of the head receptacle does not open into the sprag channel, this proportion in the clamping direction must be so far out that the head of the clamping screw does not rest in this portion of the head receptacle on the main body of the connecting element.

In this embodiment, the clamping screw channel with respect to the clamping direction beyond the head receiving, in particular beyond the sprag channel, have a screw-in. In other words, the clamping screw can be tightened within the body of the connecting element in the screw-in, so that the screw head entrains the clamping body when tightening, thus providing the clamping effect described above. The Einschraubbereich may have an internal thread or may be a bore having a smaller inner diameter than the nominal diameter of the clamping screw and which is designed especially for self-tapping clamping screws. This embodiment can be used in particular in the specific embodiments as end connector or longitudinal connector. In this embodiment, the screw can also disappear completely in the body during jamming.

Alternatively, in this embodiment, the clamping screw channel with respect to the clamping direction beyond the head receiving a through hole having a larger inner diameter than the nominal diameter of the clamping screw. In other words, the screw received in the clamping screw channel can be screwed and tightened outside the main body of the connecting element, for instance by a nut or another component bearing against the basic body with a screw channel (internal thread or screw-in area), so that the screw head takes along the clamping body when tightened and thus provides the clamping effect described above. The connecting element of this embodiment shows its advantageous effect, in particular, when it is designed as a corner connector or T-connector according to one of the related development. In this case, the third profile element have a screw (internal thread or Einschraubbereich) and be pulled with the clamping screw to the third profile recording. In this way, two or even three profile elements can be connected with a single screw.

In one embodiment, the clamping screw channel opens into walls on both sides of the sprag channel. In other words, the received in the clamping screw channel Clamping screw can pass through a provided in the clamp body through hole. In this form, the screw head can have a large bearing surface on a side surface of the clamping body and, moreover, the clamping body can be loosely secured in the body by the clamping screw prior to assembly of the profile elements.

In an alternative embodiment, the clamping screw channel extends above or below the sprag channel. With this form, the clamping body accommodated in the clamping body channel can still be displaced even when the clamping screw is held in the clamping screw channel.

Another aspect of the present invention relates to a connection assembly for connecting profile elements. The connecting assembly has at least one connecting element according to the invention described above point of view and a clamping body and at least one clamping screw or a plurality of clamping screws corresponding to the number of provided on the connecting element clamping screw channels. The clamping body preferably has a rectangular cross section. D. h., The clamp body is cuboid or rectangular rod-shaped or plate-shaped, in particular elongated plate-shaped. In one embodiment, it is provided that the clamping body extends beyond the main body of the connecting element. Thus, the clamping body project into a cavity of the first profile element and abut against a first wall of the first and the second profile element in a clamping direction. In this case, the clamping body preferably extends approximately as far beyond the base body as the projection protrudes from the base body at the first or second profile receptacle. According to the above description, with respective embodiments of the connecting element, an end connection of a profile element, a longitudinal connection or corner connection of two profile elements or a T connection of three profile elements, in particular a connection of a transverse rung to a longitudinal strut formed by two sections, can be realized. Clamping screws and clamping bodies are designed according to the respective descriptions of the embodiments of the connecting element. Since the connection assembly has at least one connection member according to the above-described aspect of the invention, the related embodiments, modifications, and variants described above are applicable to this aspect of the invention, so that the connection assembly makes use of the same advantageous effects as described for the connection member.

In one embodiment, the clamping body is made of steel. Since the clamping body has to absorb relatively high forces and must have a high dimensional stability, steel is a suitable and relatively inexpensive choice of material. The connecting element may be made of aluminum or an aluminum alloy or plastic or steel, gray cast iron or the like.

Another aspect of the present invention relates to a frame structure having a plurality of profile elements and a corresponding plurality of connectors, wherein at least one connector is formed as a connection assembly as described above and at least two profile elements are interconnected by the connection assembly. In particular, the parts of the connection assembly and the profile elements are matched in their respective dimensions and shapes. The frame structure may in particular be designed for attachment to a window or lintel. Since the frame structure has at least one connection assembly according to the above-described aspect of the invention, the above-described embodiments, modifications and variants are applicable to this aspect of the invention, so that the frame structure makes use of the same advantageous effects as those for the connection assembly and also for the connection member have been described.

In one embodiment, a first profile element and a second profile element form a longitudinally connected frame section and a third profile element is connected at right angles to the profile section to this profile section, wherein the connection of the first and the second profile element and the connection of the third profile element by the connection assembly according to above Description is carried out and wherein the third profile element frontally a screw, in particular a threaded hole or other Einschraubbereich for receiving the clamping screw and the first profile element and the second profile element each having a hollow chamber for receiving the clamping body. In other words, the first and the second profile element may together form a longitudinal strut and the third profile element may be a crossbar. According to the invention the third profile element frontally a screw, in particular a threaded hole or other Einschraubbereich and has the body a sprag channel for receiving the clamp body in the longitudinal direction and at least one transverse to the sprag channel extending clamping screw channel for receiving a clamping screw so that the clamping screw when screwing in a frontal end of the Cross rung simultaneously pulls the front end of the crossbar to the cross shoot recording (third profile recording) and the clamping body entrains so that the clamping body jammed the Längsstrebenteilstücke (first, second profile element) in the region of the respective profile recording (first, second profile recording) with the connecting element.

In a modification, the third profile element may have a nut receiving chamber for receiving a nut instead of a screw channel. The nut may be a square or hex nut, and the nut receiving chamber may have an abutment for the nut. Alternatively, the nut may be a split nut, and the nut receiving chamber may be a groove with roughening on which the expansion nut can be supported.

Two further profile elements, which are similar to the first and the second profile elements, may be connected to one another and to the third profile element by another such connection assembly, such that the two further profile elements form a further longitudinally connected frame section (the longitudinal strut), which is defined by the first and the second profile element formed frame portion (another longitudinal strut) is parallel. This is already a frame section constructed with two longitudinal struts and a central rung. Two transverse struts may be connected to this frame section by conventional corner connectors or by corner connectors as described above to form a frame structure for a door with a crossbar. Alternatively, a frame structure for a window with crosswise connected crossbars may be formed so that each of a cross profile section as a third profile element and two longitudinal strut sections as the first and second profile element by means of a respective connecting assembly are T-shaped and four such structures are connected together so that the free ends of the crosspiece sections are placed approximately on a cross connector and the free ends of the longitudinal strut sections are connected to each other by means of corner joints.

Another aspect of the present invention relates to a protective grid having a frame structure and a grid structure attached to the frame structure. The lattice structure preferably has a textile fabric or fleece which is designed for insect, pollen or particle protection. The protective grid is in particular a protective door, and the frame structure is in particular constructed with two longitudinal struts, two cross struts and a connected between the two longitudinal struts cross rung, each longitudinal strut is formed by a first and a second profile element according to the above description and the crossbar by a third profile element is formed in accordance with the above description.

The protective grille, the frame structure and the connection assembly can each be understood in mounted or preassembled form or as a kit.

It should be noted that, in the above aspects and embodiments of the invention, when like elements are referred to as first / -s / -r, second / -s / -r, third / -s / -r elements of the type, the count only serves to distinguish one from another. In particular, if a first and a third element are defined, this is not necessarily to be construed as meaning that a second element must be present, although it does not preclude this.

Other features, objects, advantages and effects of the present invention will be apparent from the following description of specific embodiments. To illustrate the embodiments reference is made to the accompanying drawings. Where:

1 an overall perspective view of a guard door as an embodiment of the present invention;

2 a detailed representation of a detail "II" in 1 ;

3 an exploded perspective view of a connection assembly in this embodiment of the present invention;

4 a perspective exploded view of the in 2 shown detail from a different angle;

5 a sectional view of in 2 shown detail along a plane "V" in 2 ;

6 a sectional view along a section line "VI" - "VI" in 5 in the direction of the arrows indicated there;

7 a perspective partial exploded view analog 4 with a connection assembly according to another embodiment of the present invention;

8th a perspective partial exploded view analog 4 with a connection assembly according to still another embodiment of the present invention;

9 a perspective partial exploded view analog 4 with a Connection assembly according to another embodiment of the present invention;

10 a sectional view analog 5 with a connection assembly according to a still further embodiment of the present invention;

11 a sectional view analog 5 with a connection assembly according to a still further embodiment of the present invention;

12 a sectional view analog 6 with a connection assembly according to a still further embodiment of the present invention;

13 a sectional view analog 6 with a connection assembly according to a still further embodiment of the present invention; and

14 a sectional view analog 6 with a connection assembly according to yet another embodiment of the present invention.

The present invention will now be described in detail by way of preferred embodiments with reference to the accompanying drawings. It should be understood that the pictorial representations are purely schematic and not necessarily to scale. It should also be understood that the drawings and the description below are directed to the features useful for understanding the invention without thereby limiting the scope of the present invention, which is defined solely by the appended claims.

In the context of this application, indications such as vertical, parallel, collinear, the same or the like are not to be understood exclusively in a theoretically exact sense, but may include an area within the scope of technically reasonable tolerances. The understanding of the technically meaningful can depend on the effect to be achieved. The same applies to figures or values.

A first embodiment of the present invention will now be described with reference to FIGS 1 to 6 be described in detail. It is 1 a perspective view of a protective grid with a frame structure according to a first embodiment of the present invention; is 2 a detailed representation of a detail "II" in 1 ; is 3 an exploded perspective view of a connection assembly in this embodiment of the present invention; is 4 a perspective exploded view of the in 2 shown detail from another angle; is 5 a sectional view of in 2 shown detail along a plane "V" in 2 ; and is 6 a sectional view along a section line "VI" - "VI" in 5 in the direction of the arrows indicated there.

Without limiting the generality, the protective grid shown and described in this embodiment is an insect screen door for attachment to a door opening.

As shown in 1 For example, the guard of this embodiment has a frame structure 1 into which a lattice structure 2 is clamped. The frame structure 1 has several profile elements (here hollow frame profiles) 11A . 11B . 11C . 11D . 11E passing through four corner connectors 12 and two connection assemblies 13 connected to each other, on. Specifically, of the profile elements, two lower longitudinal strut profiles 11A , two upper longitudinal strut profiles 11B , a crossbar 11C , an upper crossbar profile 11D and a lower cross strut profile 11E distinguished. One longitudinal strut profile each 11A or 11B and a cross strut profile 11D or 11E are via a corner connector 12 connected to each other across the corner. One each of the lower longitudinal strut profiles 11A , one of the upper longitudinal strut profiles 11B and the crossbar 11C are over the connection assembly 13 connected in the form of a "T".

The longitudinal and transverse struts profiles 11A . 11B . 11D . 11E are hollow sections of the same profile cross section, while the crossbar 11C has a different profile cross-section, as in anticipation 4 is briefly described. The 4 shows as a partial explosion drawing the detail "II" of 1 with a lower longitudinal strut profile 11A , an upper longitudinal strut profile 11B and the crossbar 11C and the connection assembly 13 , As in 4 shown, has an outer contour 111 the longitudinal strut profiles 11A . 11B a keder nut 111 , a brush nut 111b and a fastening groove 111c on. The brush groove 111b has two inwardly facing webs, behind which a brush back of a seal brush is clamped. Furthermore, the longitudinal strut profiles 11A . 11B a closed hollow chamber 112 of substantially rectangular cross section. The crossbar 11C points in its outer contour 111 only two Kedernuten 111 on, and a closed hollow chamber 112 the crossbar 11C has two screw channels 114 on.

Back to 1 is in the frame structure 1 a lattice structure 2 with two grid elements 21 clamped. More specifically, a grid element 21 between the lower longitudinal strut profiles 11A , of the crosspiece 11C and the lower crossbar profile 11E spanned and is another grid element 21 between the upper longitudinal strut profiles 11B , the crossbar 11C and the upper crossbar profile 11D clamped. The grid elements 21 are textile lattices whose edges each with the help of a welt 22 in the Kedernuten 111 the strut profiles 11A . 11B . 11D . 11E and the crossbar 11C are attached.

A tread assembly 3 is provided in the lower part of the protective door. The tread assembly 3 has a footboard 31 by means of a cross connector 32 with the help of two fixing screws 33 on the frame structure 2 is attached, up.

Three hinge assemblies 4 are provided on one longitudinal side of the guard door. Each hinge assembly 4 has a top 41 and a lower part 42 on. The top 41 is each in the mounting groove 41 the longitudinal strut profiles 11A . 11B attached. The lower part 42 is each provided for screwing into a door frame and formed.

A sealing brush 5 is in the brush groove 111b all aspirations 11A . 11B . 11D . 11E used, where in the door opening side in places a magnetic strip 8th instead of the sealing brush 5 in the brush groove 11b is used for the bottom-side sealing of the protective door.

At the bottom of the guard door is a sanding brush 6 in the mounting groove 111c of the lower crossbar profile 11E used.

A handle assembly 7 has a handle 71 on, by means of a variety of mounting screws 72 on the frame structure 1 is attached.

2 shows as one with a line II in 1 marked detail a connection region of the crossbar 11C with the upper longitudinal strut profile 11B and the lower longitudinal strut profile 11A in a detailed perspective view of an installation side (the plant side is the side with which the protective door rests against a door frame, without restriction of generality, the plant side is considered as the underside of the profile elements). As in 2 can be seen, the outer contour 111 the profile elements optically interrupted only slightly. From the connection assembly 13 is only the basic body 141 of the connecting element 14 to see. The main body 141 is laterally and slightly thicker than the profile elements 11A . 11B . 11C , as respective profiles (here only the first profile recording 142 explicitly designated) are provided, which are recessed in the body and which the profiles 11A . 11B and 11C include laterally and from the visible side with respective projections. On the investment side is the main body 141 of the connecting element 14 flush with the profile elements 11A . 11B . 11C , From the outside are also visible openings 147a for clamping screws, which are described in more detail below.

Now, based on the 3 , which is an exploded perspective view of the connection assembly 13 is, the connection assembly 13 described in detail.

As in 3 shown, the connection assembly has a connecting element 14 , a clamp body 15 in the form of a clamping plate, and two clamping screws 16 on.

The connecting element has a base body 141 which has a substantially cuboid shape with Kantenffasungen or rounding.

The main body 141 has a first profile recording 142 for receiving the lower longitudinal strut profile 11A as a first profile element, a second profile recording 143 for receiving the upper longitudinal strut profile 11B as a second profile element, and a third profile recording 144 for receiving the crossbar 11C as a third profile element. In the figure, the second and third profile recording 143 . 144 hidden in perspective, and the first profile recording 142 is visible. The first profile recording 142 is a recess in the body 141 that has a stop surface 142a at which the first profile element 11A with its front end when assembling strikes, and a supernatant 142b , which is the cutting edge of the first profile element 11A in the assembly on the visible side covers and therefore can also be referred to as cut edge cover forms. At the bottom is the profile recording 142 open. Vertically from the stop surface 142a out a cantilever extends 145 , The cantilever 145 is L-shaped in cross-section and has a first leg 145a and a second leg 145b on. The first leg 145a has a support surface 145c on, on which later the clamping body 15 rests. The second leg 145b has a guide surface 145d , on which later the clamping body 15 abuts, and one of the guide surface 145d opposite clamping surface 145e on. The second profile recording 143 lies on one of the first profile recording 142 in the longitudinal direction of the connecting element 14 opposite side of the body 141 and has one of the first profile recording 142 corresponding structure as recess with stop surface, projection and overhang 145 on. The third profile recording 144 lies on one side of the main body 141 between the first profile recording 142 and the second profile recording 143 and has a corresponding structure as a recess with stop surface and projection, but without overhanging. It is understood that the profile shots 142 . 143 . 144 to the profile elements 11A . 11B . 11C are adapted so that the profile elements 11A . 11B . 11C are precisely covered by the respective supernatants. Without limiting the generality, a line defined by a surface normal of the stop surface 142a the first profile recording 142 is determined, a longitudinal axis L of the connecting element 14 , defines a line passing through a surface normal of the abutment surface of the third profiling 144 is determined, a transverse axis Q of the connecting element 14 , and becomes a direction perpendicular to the longitudinal and transverse directions as a height axis Z of the connecting member 14 designated. Thus, the stop surfaces 142a . 143a the first and the second profile recording 142 . 143 parallel to each other and to the stop surface 144a the third profile recording 144 perpendicular.

Between the first and the second profile recording 142 . 143 extends a sprag channel 146 in the longitudinal direction L through the body 141 through, with the bearing surfaces 145c and guide surfaces 145d of the projections 145 as respective walls in the sprag channel 146 continue and wherein the sprag channel 146 as a channel with a substantially rectangular cross section above the support surface 145c is trained.

Below the sprag channel 146 extend transversely to this two clamping screw channels 147 for receiving the clamping screws 16 through the main body 141 therethrough.

The clamp body 15 has a substantially rectangular cross-section and is thus substantially cuboid or plate-shaped. The clamping body has a width w, which is smaller than a clear width of the sprag channel, a height h, which is approximately at a clear height of the sprag channel 146 corresponds, and a length l, which is substantially an overall length of the connecting element 14 about everything, up. When the clamp body 15 in the sprag channel 146 of the connecting element 14 is received, is the terminal body 145 on the bearing surfaces 145c of the projections 145 of the connecting element 14 on and lies a contact surface 151 of the clamp body 15 at the guide surfaces 145d of the projections 145 of the connecting element 14 at. The clamp body 15 has a center hole 153 in the height direction Z, which can be used for centering purposes.

The two clamping screws 16 are formed in this embodiment as a cylinder head wood screws or screws and have a head 161 and a shaft 162 on. The head 161 has a drive profile 161a and a support surface 161b on. The drive profile 161a is formed in this embodiment as an internal multi-shaft profile, more precisely a Torx profile. The shaft 162 has a cylindrical part 162a , a threaded part 162b and a tip 162c on.

4 shows the connection assembly 13 with inserted clamping body 15 in a mounting situation with the associated profile elements 11A . 11B . 11C in an exploded view. In this case, a centering screw not shown here from below into the main body 141 of the connecting element 14 be screwed and with its tip the central hole 153 of the clamp body 15 grasp and thus secure this. It is ensured that the clamping body 15 still has enough freedom of movement, especially in the clamping direction.

Thus pre-assembled, initially a hollow chamber 112 of the first profile element (lower longitudinal strut profile) 11A on the overhang 145 with clamping body located thereon 15 at the first profile recording 142 pushed and brought into abutment with the local stop surface (not visible here). Similarly, a corresponding hollow chamber (not visible here) of the second profile element (upper longitudinal strut profile) 11B on the overhang 145 at the second profile recording 143 with clamping body located thereon 15 pushed and in abutment with the local stop surface 143a brought. Finally, the third profile element (cross rung) 11C to the stop surface of the third profile recording 144 set, at the same time the clamping screws 16 through the entry openings 147a in the clamping screw channels 147 used, passed through and in screw channels 114 that in the third profile element 11C are provided, screwed. This will be the third profile element 11C to the third profile recording 144 drawn. At the same time, the first and second profile element 11A . 11B over in the hollow chambers 112 located portions of the projections 145 and the clamp body 15 , in particular their clamping surfaces 145a . 152 , with the connecting element 14 jammed, as shown by the sectional views in 5 and 6 will become clearer.

5 is a sectional view of the connection assembly 13 with connected profile element (cross rung) 11C according to a cross section along an in 2 with "V" specified cutting plane along one of the clamping screw channels 147 runs.

As in 5 shown, runs the clamping screw channel 147 just below the sprag channel 146 , tangent to this, within the body 141 of the connecting element 14 and opens in the stop area 144a the third profile recording 144 , One in the Clamping screw channel 147 inserted clamping screw 16 is in the screw 114 of the third profile element 11C screwed in, so that the third profile element 11C to the stop surface 144a the third profile recording 144 is pressed. In this position, the support surface is located 161b of the head 161 the clamping screw 16 at the contact surface 151 of the clamp body 15 and urges this in the clamping direction K to the side of the third profile recording 144 out. It should be noted that the head mount 147a of the clamping screw channel 147 in the clamping direction K via the point of entry into the sprag channel 146 out into the main body 141 of the connecting element 14 extends. This is the head 161 the clamping screw 16 outside the sprag channel 146 free. On the side of the clamping surface 152 of the clamp body 15 is the opposite wall of the sprag channel 146 from the clamp body 15 taken back, so that the clamping body 15 on this side, no contact with the connecting element 14 having.

It should be mentioned that the main body 141 of the connecting element 14 at the bottom an undercut in extension of the brush groove 111b of the longitudinal strut profiles 11A in which the seal brush is not held, but still finds room. A holding of the sealing brush 5 is in the connector 14 not necessary, since the clamping in the brush grooves 111b the longitudinal strut profiles 11A (and 11B ) of the sealing brush 5 gives sufficient support.

6 is a sectional view of the connection assembly 13 with attached profile elements (longitudinal strut profiles, crossbars) 11A . 11B . 11C according to a plane section along an in 5 with "VI" specified cutting plane, seen from above. The section runs height of the clamping screw channels 147 , In this view, the clamping body runs above the plane of the drawing and is therefore not visible. To illustrate, however, is the location of lying also above the plane of the investment surface 145d the cantilever 145 shown in dashed lines.

If, as explained above, in the third profile element 11C screwed in clamping screws 147 the clamp body 15 towards the third profile recording 144 he is pushing as he is inside the sprag channel 147 of the connecting element 14 no further investment or support surface in this direction, also in each case against a first wall 112a inside the hollow chambers 112 the first and the second profile element 11A . 11B pressed. As the clamp body 15 thus of the contact surface 145d of the projections 145 is pushed away, becomes the connecting element 14 as well from the contact area 151 of the clamp body 15 pushed away, leaving the clamping surfaces 145e of the projections 145 each against a second wall 112b the hollow chamber 112 the first and the second profile element 11A . 11B be pressed. In this way, by tightening the clamping screws 16 a deadlock between the connecting element 14 , the clamp body and the first, second and third profile element 11A . 11B . 11C be effected.

The principle of the invention is applicable not only to T-joints of profile elements but to many types of joints. In order to adapt the invention assembly to various applications, only the connecting element has to be changed and if necessary the clamping body and / or the clamping screw must be shortened.

7 shows in an exploded view accordingly 4 a connection assembly according to another embodiment. This embodiment may be understood as a modification of the first embodiment, so that constructive and functional features of the first embodiment are assumed to be present in this embodiment, unless otherwise described below or excluded from the below.

In the present embodiment, the connection assembly is 13 as a corner joint between a first profile element 11A and a third profile element 11C executed. (Although only two profile elements are connected here, the count of the cross-connected profile element as the third profile element is maintained here, since a cooperation of the components of the connection assembly 13 and the transversely connected third profile element corresponds to those in the first embodiment.)

As shown in 7 has the connecting element 14 in contrast to the first embodiment on the first profile recording 142 opposite side no profile recording and no projection, but a closed end wall 148 on. But these are the first profile recording 142 with overhang 145 and the third profile recording 144 as provided in the first embodiment. In contrast to the first embodiment, although not shown here in detail, inside the sprag channel on the side of the closed end wall 148 a support surface provided, on which the clamping surface 152 of the clamp body 15 can be supported in the clamping direction K. The clamp body 15 is of course shorter than in the first embodiment, since it is on the side of the closed end wall 148 inside the connecting element 14 ends.

When the first profile element 11A in this embodiment, with its hollow chamber 112 on the overhang 145 and the clamp body 15 pushed and in the first profile recording 142 is taken, the third profile element 11C at the third profile recording 144 attached and the clamping screws 147 used and in the screw channels 114 of the third profile element 11C screwed and tightened, the clamping body is supported by its clamping surface 152 in the clamping direction K on the first wall 112a the hollow chamber 112 of the first profile element 11A and on the support surface (not visible here) in the interior of the sprag channel of the connecting element 14 off while the clamping surface 152 between them is free. The other functional interactions according to the first embodiment.

In this way, by tightening the clamping screws 16 a deadlock between the connecting element 14 , the clamp body 15 and the first and third profile elements 11A . 11C be effected in the sense of a corner joint.

Although in 7 the first and the third profile element 11A . 11C have different cross-sectional shapes, since the first profile element 11A as a longitudinal strut profile and the third profile element 11C In the sense of the first exemplary embodiment, these are designed as crossbars, this is not mandatory for the application of the invention. The first and the third profile element 11A . 11C can also have the same inside and / or outside cross-sectional contours. For example, the third profile element 11C like the first profile element 11A only a Kedernut, but have a brush groove and a mounting groove. Likewise, the first profile element 11A like the third profile element 11C Have screw channels, but which are not used, and can be a hollow chamber 112 of the third profile element 11C have the same cross-sectional basic shape as in the first profile element 11A , In particular, for the first and third profile element 11A . 11C in this embodiment, the same profile cross sections are used.

8th shows in an exploded view accordingly 4 a connection assembly according to another embodiment. This embodiment may be understood as a modification of the previous embodiment, so that constructional and functional features of the previous embodiment are assumed to be present in this embodiment, unless otherwise described below or excluded from what is said below.

In the present embodiment, the connection assembly is the end receptacle of a first profile element 11A designed for connection to an example flat component.

As shown in 8th has the connecting element 14 as in the previous embodiment, a first profile recording 142 with overhang 145 on. In contrast to the previous embodiment, however, no third profile recording is provided. In contrast, in the clamping screw channels 147 on the side opposite the entry openings 147a the clamping screw channels 147 Screw-in areas (not shown in detail) such as threaded sections for screwing the clamping screws 16 intended. The main body 141 can be completely closed on this page, or the clamping screw channels 147 can also open on this page. Also is in the place of the closed end side 148 of the previous embodiment, a flange plate 149 with flanged holes 149a intended. The other structure of the connecting element and the clamping body 15 corresponds to that in the previous embodiment. The clamping screws 16 However, they are shorter than in the first embodiment, since they are on the side facing away from the insertion openings of the body 141 not have to survive (and should not).

The operation with regard to the first profile element 11A corresponds to that in the previous embodiment with the difference that the clamping screws directly in the body 141 of the connecting element 14 be screwed and not in another, cross-connected profile element.

In this way, by tightening the clamping screws 16 a deadlock between the connecting element 14 , the clamp body 15 and the first profile element 11A be effected in the sense of an end connection.

9 shows in an exploded view accordingly 4 a connection assembly according to another embodiment. This embodiment may be understood as a modification of the first embodiment, so that constructive and functional features of the first embodiment are assumed to be present in this embodiment, unless otherwise described below or excluded from the below.

In the present embodiment, the connection assembly is a longitudinal connection between a first profile element 11A and a second profile element 11B executed.

As shown in 9 has the connecting element 14 as in the first embodiment, a first profile recording 142 and a second profile recording each with overhang 145 on. In contrast to the first embodiment, however, no third profile recording is provided. In contrast, in the clamping screw channels 147 Screw-in areas such as threaded sections for screwing in the clamping screws 16 on the side opposite the entry openings 147a the clamping screw channels 147 intended. In this feature, this embodiment is similar to the previous one. How can there be the basic body 141 be completely closed on this page or can the clamping screw channels 147 open up there. The other structure of the connecting element 14 and the clamp body 15 corresponds to that in the first embodiment. The clamping screws 16 However, as in the previous embodiment are shorter than in the first embodiment, since they are on the insertion openings 147a opposite side of the body 141 not have to survive (and should not).

The operation with regard to the first and second profile element 11A . 11B corresponds to that in the first embodiment with the only difference that the clamping screws directly in the body 141 of the connecting element 14 be screwed and not in another, cross-connected profile element.

In this way, by tightening the clamping screws 16 a deadlock between the connecting element 14 , the clamp body 15 and the first and second profile elements 11A . 11B be effected in the sense of a longitudinal connection.

Variants with regard to the type of clamping screws 16 are in the 10 and 11 in a sectional view accordingly 5 shown. Both variants are based on the in 9 shown embodiment of a longitudinal connection without crossbar connection. In contrast to all embodiments shown so far, a center line of the clamping screw channel runs 147 in these embodiments at the height of the clamp body 15 ,

In 10 a variant is shown in which the clamping screw 15 through a through hole 154 in the clamp body 15 extends through and on the opposite side in a Einschraubbereich 147d of the sprag channel 147 summarizes. The screw-in area 147d is in this embodiment as a through hole whose inner diameter is smaller than a nominal diameter of the clamping screw 147 is, executed. That is, the Einschraubbereich 147d is here for use with a self-tapping clamping screw 15 designed. Due to the through hole 154 points the head 161 the clamping screw 16 a larger contact surface with the clamp body 15 on as with only marginal edition. As a result, the surface pressure can be reduced, damage to the contact surfaces can be avoided and can be a symmetrical force in the clamp body 15 be realized. In the 10 embodiment shown can be adapted to a crossbar connection when the Einschraubbereich 147d through a through hole of larger diameter than the nominal diameter of the clamping screw 16 is replaced.

In 11 a variant is shown in which the clamping screw 15 directly on an edge of the clamp body 15 suppressed. The clamping screw channel 147 is consistent with an internal thread 147e and is only on the side of the insertion opening 147a intended. In this way, the structure of the connecting element can be simplified and on the other side of the sprag channel a structurally usable area in the body 141 obtained, for example, by a deeper Keder groove for receiving the welt 22 and a thereby fixed edge of the network element 21 can be exploited.

12 shows in a sectional view accordingly 6 a connection assembly 13 according to a further embodiment. This embodiment may be understood as a modification of the first embodiment, so that constructive and functional features of the first embodiment are assumed to be present in this embodiment, unless otherwise described below or excluded from the below.

As shown in 12 is only a clamping screw in this embodiment 16 and thus only one clamping screw channel 147 intended. The profile elements 11A . 11B . 11C are made simpler in this embodiment than in the first embodiment. Thus, the first and the second profile element 11A . 11B a simple rectangular hollow section with a hollow chamber 112 on, and has the third profile element 11C a rectangular cross section with a central screw 114 that the clamping screw 16 picks up. This training of the outer and inner contours of the profile elements 11A . 11B . 11C should not limit the invention in any way, but only show that the principle of the invention quite independent of the complexity of the other shape of the profile elements 11A . 11B . 11C is applicable, as long as only the essential features the same are met, so for example opposite walls 112a . 112b inside the hollow chambers 112 the first and the second profile element 11A . 11B and at least one screw channel 114 in the third profile element 11C available. In this embodiment, the clamping screw channel opens 147 of the connecting element 14 as in the 10 shown embodiment in the sprag channel 146 and has the clamp body 15 also a through hole 154 for passing the clamping screw 16 so that so far the descriptions regarding the in 10 shown embodiment variant can be applied.

In a modification of this embodiment, which provides a T-connection between two longitudinal strut profiles and a crossbar, as in FIG 7 embodiment shown, the connection of the second profile element 11B omitted to realize a corner joint between a longitudinal strut profile and a cross strut profile. Here must be like in the 7 shown embodiment, of course, a support surface within the sprag channel of the connecting element 14 be provided so that the clamping body 15 on the first wall 112a of the first profile element 11A and that support surface can support while in between and in particular in the region of the clamping screw 16 exposed.

13 shows in a sectional view accordingly 6 a connection assembly 13 according to another embodiment. This embodiment may be understood as a modification of the previous embodiment, so that constructive and functional features of the first embodiment are assumed to be present in this embodiment, unless otherwise described below or excluded from the below.

In the present embodiment, the connection assembly is a longitudinal connection between a first profile element 11A and a second profile element 11B executed. Eie connection of a third profile element in the transverse direction Q is eliminated.

As in 13 shown, opens the clamping screw 16 in a screw-in area 147d of the clamping screw channel 147 of the connecting element 14 , To provide sufficient wall thickness to securely receive the screw thread, the main body is 141 of the connecting element 14 made thicker in this area than in the previous embodiment and the clamping body has a notch or a free cut 155 on, so that the clamping body 15 between the support points on the first walls 112a the profile elements 11A . 11b is free (open space 146a of the sprag channel).

14 shows in a sectional view accordingly 6 a connection assembly 13 according to another embodiment. This embodiment may be understood as a modification of the previous embodiment, so that constructive and functional features of the first embodiment are assumed to be present in this embodiment, unless otherwise described below or excluded from the below.

In the present embodiment, the connection assembly is the end connection of a first profile element 11A executed. Eie connection of a second or third profile element deleted.

As in 13 shown has the connecting element 14 instead of a second profile recording on one of the first profile recording 142 opposite side a flange plate 149 with flanged holes 149a on. Within the sprag channel is on to the flange plate 149 adjacent end of the sprag channel 146 a support surface 146b provided, which is relative to the open space 146a in the direction of the clamp body 15 protrudes and on a level with the first wall of the 112a the hollow chamber 112 of the first profile element 11A lies. So can the clamp body 15 when tightening the clamping screw 16 on the support surface 146b and on the first wall 112a of the first profile element 11A support, while the clamping body 15 between them is exposed (area of the open space 146a ). It should be noted that this illustration of the support surface 146b and the explanation given for this can also be applied to all above-described Eckverbindungs- and Endanbindungslösungen.

Unlike the previous embodiment, the main body is 141 of the clamping body in the region of the clamping screw channel 147 not thickened and has the clamping screw channel 147 no Einschraubbereich on, but is a sleeve nut 9 inserted into the clamping screw channel from the outside, in which the clamping screw 16 is tightened. The sleeve nut 9 is designed to be open to the outside, but it can also be closed to the outside. The sleeve nut 9 For example, a drive profile, such as a face slot or phillips, or at least a pair of parallel lateral faces, may engage a wrench or the like around the sleeve nut 9 when screwing in the clamping screw 16 to secure against turning. Alternatively, the sleeve nut 9 in the clamping screw channel 147 be shrunk or secured in other ways form, force or cohesive.

It should be understood that the foregoing description may include only exemplary embodiments of the present invention, and the invention is not limited to the specific embodiments described, their modifications, variants and modifications, but is defined solely by the appended claims in their broadest sense. Variations, additions, substitutions, and equivalents which those skilled in the art will make from the skilled artisan in the described embodiments are to be understood as embodiments of the present invention insofar as they come within the scope of the appended claims.

LIST OF REFERENCE NUMBERS

1

Door frame (frame structure)

11A

Longitudinal strut profile below (first profile element, 2x)

111

Sectional outer contour

11B

Longitudinal strut profile above (second profile element, 2x)

11C

Cross rung (third profile element)

111

piping groove

111b

Bürstennut

111c

mounting groove

112

hollow

112a

first wall

112b

second wall

113

front

114

Screw channel (2x)

11D

Cross strut profile above

11E

Cross strut profile below

12

Corner connector

13

Crossbar connector (connection assembly)

14

connecting element

141

body

142

first profile recording

142a

Stop surface (recess)

142b

Overhang (cut edge cover)

143

second profile recording

143a

Stop surface (recess)

144

third profile recording

144a

Stop surface (recess)

144b

Overhang (cut edge cover)

145

projection

145a

first leg

145b

bearing surface

145c

second leg

145d

guide surface

145e

clamping surface

146

Sprag channel

146a

open space

146b

support surface

147

Clamping screw channel

147a

insertion opening

147b

head seat

147c

Shaft passage (through hole)

147d

screw-in

147e

inner thread

148

end wall

149

flange

149a

Flange

15

Clamping plate (clamping body)

151

contact surface

152

third stop surface (2x)

153

Central hole

154

Through Hole

155

Free cut (recess)

16

clamping screw

161

screw head

161a

bearing surface

162

shaft

162a

cylindrical part,

162b

thread

162c

top

17

sleeve nut

2

lattice structure

21

grid element

22

piping

3

Footboard assembly

31

Trittblech

32

cross-connector

33

fixing screw

4

hinge assembly

41

top

42

lower part

5

sealing brush

6

brush

7

handle assembly

71

Handle

72

mounting screws

8th

magnet

A1

first recording direction

A2

second recording direction

A3

third shot direction

K

clamping direction

L

Longitudinal axis (direction)

Q

Transverse axis (direction)

Z

The vertical axis (direction)

H

height

l

length

w

width

This list of reference numbers is an inherent part of the description.

Claims (19)

Connecting element ( 14 ) for connecting profile elements, wherein the connecting element ( 14 ) a basic body ( 141 ) with a first profile recording ( 142 ) for receiving a first profile element ( 11A ) in a first receiving direction (A1), a sprag channel ( 146 ) to Admission of a clamp body ( 15 ), wherein an axis (L) of the sprag channel ( 146 ) runs parallel or collinear to the first receiving direction, and a clamping screw channel ( 147 ) for receiving a clamping screw ( 16 ) transversely, preferably at right angles, to the first receiving direction (A1), wherein the clamping screw channel ( 147 ) and the sprag channel ( 146 ) are formed such that one in the clamping screw channel ( 147 ) received clamping screw ( 16 ) when tightening the clamping screw ( 16 ) the clamping body ( 15 ) in a clamping direction (K) with respect to the first profile element ( 11A ) urges. Connecting element ( 14 ) according to claim 1, characterized in that the sprag channel ( 146 ) to a hollow chamber ( 112 ) of the first profile element ( 11A ) is adapted such that a in the clamping body channel ( 146 ) and over the main body ( 141 ) of the connecting element ( 14 ) protruding clamping body ( 15 ) so in the hollow chamber ( 112 ) of the first profile element ( 11A ), that the clamping body ( 15 ) by tightening the clamping screw ( 16 ) to a first wall ( 112a ) of the hollow chamber ( 112 ) is pressed. Connecting element ( 14 ) according to claim 1 or 2, characterized in that the connecting element ( 14 ) a cantilever ( 145 ), which in the area of the first profile recording ( 142 ) of the basic body ( 141 ) and to the hollow chamber ( 112 ) of the first profile element ( 11A ) is adapted such that the projection ( 145 ) so in the hollow chamber ( 112 ) of the first profile element ( 11A ) extends that the projection ( 145 ) when tightening the clamping screw ( 16 ) to a second wall ( 112b ) of the hollow chamber ( 112 ), the first wall ( 112a ), is pressed, wherein the projection ( 145 ) preferably has an L-shaped cross-section, wherein a first leg ( 145a ) of the L-shaped cross-section a bearing surface ( 145b ) for the clamping body ( 15 ) and a second leg ( 145c ) of the L-shaped cross section with the second wall ( 112b ) of the hollow chamber ( 112 ) of the first profile element ( 11A ) cooperates. Connecting element ( 14 ) according to claim 2 or 3, characterized in that a wall of the clamping body channel ( 146 ), which in the sprag channel ( 146 ) received clamping body ( 15 ) in the clamping direction (K) is opposite, an open space ( 146a ), which in the area of the first profile recording ( 142 ) and from there in the sense of the first receiving direction (A1) to beyond the region of the clamping screw channel ( 147 ) beyond in the clamping direction (K) behind a plane of the first wall of the hollow chamber ( 112 ) of the first profile element ( 11A ) is withdrawn. Connecting element ( 14 ) according to claim 4, characterized in that the basic body ( 141 ) a second profile recording ( 143 ) for receiving a second profile element ( 11B ) in a second recording direction (A2) parallel or collinear with the first recording direction (A1) is on, wherein the second profile recording ( 143 ) of the first profile recording ( 142 ) is formed correspondingly mirror-image, and wherein the free surface ( 146a ) of the sprag channel ( 146 ) preferably extends over its entire length. Connecting element ( 14 ) according to claim 4, characterized in that the wall of the sprag channel ( 146 ) one of the first profile recording ( 142 ) seen from beyond the clamping screw channel ( 147 ) to the open space ( 146a ) adjacent support surface ( 146b ) which is connected to the first wall ( 112a ) of the hollow chamber ( 112 ) of the first profile element ( 11A ) is coplanar. Connecting element ( 14 ) according to claim 5 or 6, characterized in that the basic body ( 141 ) a third profile recording ( 144 ) for receiving a third profile element ( 11C ) in a third receiving direction (A3) at an angle, preferably at right angles, to the receiving direction of the first profile element (FIG. 11A ), wherein the clamping screw channel ( 147 ) in the third profile recording ( 144 ) opens. Connecting element ( 14 ) according to one of claims 5 or 6, characterized in that the clamping screw channel ( 147 ) with respect to the clamping direction (K) on this side of the sprag channel ( 146 ) has an internal thread and into the sprag channel ( 146 ) opens. Connecting element ( 14 ) according to one of claims 1 to 7, characterized in that the clamping screw channel ( 147 ) with respect to the clamping direction (K) on this side of the sprag channel ( 146 ) a head shot ( 147b ), which at least partially in the sprag channel ( 146 ) opens. Connecting element ( 14 ) according to claim 9, characterized in that the clamping screw channel ( 147 ) with respect to the clamping direction (K) beyond the head receptacle ( 147b ), in particular beyond the sprag channel ( 146 ), a screw-in area ( 147d ) having. Connecting element ( 14 ) according to claim 9, characterized in that the clamping screw channel ( 147 ) with respect to the clamping direction (K) beyond the head receptacle ( 147b ) a through hole ( 147d ) with a larger inner diameter than the nominal diameter of the clamping screw ( 16 ) having. Connecting element ( 14 ) according to one of claims 9 to 11, characterized in that the clamping screw channel ( 147 ) in walls on both sides of the sprag channel ( 146 ) opens. Connecting element ( 14 ) according to one of claims 9 to 11, characterized in that the clamping screw channel ( 147 ) above or below the sprag channel ( 146 ) runs. Connection assembly ( 13 ) for connecting profile elements, comprising at least one connecting element ( 14 ) according to one of the preceding claims and a clamping body ( 15 ) and at least one clamping screw ( 16 ) or several clamping screws ( 16 ) corresponding to the number of fasteners ( 14 ) provided clamping screw channels ( 147 ), wherein the clamping body ( 15 ) preferably has a rectangular cross-section. Connection assembly ( 13 ) according to claim 14, characterized in that the clamping body ( 15 ) is made of steel. Frame structure ( 1 ) having a plurality of profile elements and a corresponding plurality of connectors ( 12 . 13 ), wherein at least one connector comprises a connection assembly ( 13 ) according to claim 14 or 15, and wherein at least two profile elements through the connection assembly ( 13 ), in particular the parts of the connection assembly ( 13 ) and the profile elements in respective dimensions and shapes are matched to one another, and wherein the frame structure ( 1 ) is preferably designed for attachment to a window or lintel. Frame structure ( 1 ) according to claim 16, characterized in that the frame structure ( 1 ) a first profile element ( 11A ), a second profile element ( 11B ) and a third profile element ( 11C ), wherein the first profile element ( 11A ) and the second profile element ( 11B ) form a longitudinally connected frame section and the third profile element ( 11C ) is connected at right angles to this frame portion, wherein the connection of the first and the second profile element ( 11A . 11B ) and the connection of the third profile element ( 11C ) through the connection assembly ( 13 ) is executed, wherein the third profile element ( 11C ) frontally a screw ( 114 ) for receiving the clamping screw ( 16 ) and the first profile element ( 11A ) and the second profile element ( 11B ) each have a hollow chamber ( 112 ) for receiving the clamping body ( 15 ) exhibit. Frame structure ( 1 ) according to claim 16 or 17, characterized in that the frame structure ( 1 ) two further profile elements ( 11A . 11B ), the first and the second profile element ( 11A . 11B ), wherein the two further profile elements ( 11A . 11B ) and the third profile element ( 11C ) by another connection assembly ( 13 ) are interconnected according to claim 14 or 15, that the two further profile elements ( 11A . 11B ) form a further longitudinally connected frame section, which is provided by the first and the second profile element ( 11A . 11B ) formed frame portion is parallel. Protective grid with a frame structure ( 1 ) according to one of claims 16 to 18 and one on the frame structure ( 1 ) grid structure ( 2 ), the lattice structure ( 2 ) preferably comprises a textile fabric or non-woven, which is designed for insect, pollen or particle protection.

Images