KR100753636B1 - Frame for holding a flat body - Google Patents

Abstract

The plate support frame according to the present invention comprises: a plurality of external struts (3) having both ends, an outer portion, and an inner portion, and a channel (8) formed along the inner portion; Two adjacent outer contour struts having a main web 9 having a hole 11 and projections 13 vertically extending from the main web 9 and connected to adjacent contour struts 3 adjacent thereto; A plurality of angle connectors 5 for connecting (3); And a circumference extending around the channel 8 formed inside the contour strut 5, coupled to the angle connector 5 through the hole 11 of the angle connector 5, and the contour strut 3. It is clamped in the channel 8 of the inner part of the clamping element, and clamping element for supporting the angle connector 5 and the contour strut 3 in addition.

Channel, frame

Description

Frame support frame {FRAME FOR HOLDING A FLAT BODY}

1 is a perspective view showing a first embodiment of a frame according to the present invention;

FIG. 2 is a perspective view of a corner angle connector in the first embodiment shown in FIG. 1, FIG.

3 is a cross-sectional view of the outer strut in FIG.

4 is a cross-sectional view of the frame along the line A-A of FIG.

5 is a detailed perspective view of the corner connecting portion of the frame of FIG. 1 with the outline struts omitted to clearly show the mechanical shape;

6 is a perspective view showing a second embodiment of the frame according to the present invention with the glass plate inserted into the frame;

7 is a cross-sectional view of the contour strut in FIG.

<Explanation of symbols for main parts of the drawings>

1: frame 3: outline strut

5 corner angle connector 7 clamping element

8: channel 9: main web

11 hole 13 projection

15: Home 17: Tab

The present invention relates to a frame for supporting a flat body having a polygonal contour, in particular a rectangular contour, the frame comprising a straight profiled strut with end faces connected to each other.

Such frames have been known for a long time and have been used, for example, for supporting electrical and electronic devices. In particular, flat display elements, such as LCD displays or plasma displays, are arranged in a housing having a frame and a rear wall, as is exemplarily known from US Pat. No. 6,181,390. Members made of suitable plastics or preferably light alloys are used for this purpose. To date, in order to make a fixed joint, the outer struts have been welded, glued or pressed together with each other directly or through a corner angle connector when producing the frame. This makes the work relatively difficult and increases the assembly cost, and it is also quite difficult to separate without at least destroying the frame.

German utility 70 00 649 discloses in particular a frame for windows, doors or prefabricated elements, which frame parts are connected to one another without corner angle connectors and are fixed by means of open clamping strips which are adjustable by means of turnbuckles. Because of the limited access to the clamping strips, the clamping strips can only be tightened or replaced with relatively high effort.

French Patent Publication FR-A-2 529 626 discloses a door or similar structure. In this case the four circumferential cavity contours are connected to each other via a corner angle connector and fixed to each other by an unstretched cable. One end of the cable is formed in a loop by winding a pin at one end of the angle connector, and the other end of the cable is fixed through a fixing device of the same corner angle connector. The fixing device can be readjusted via an appropriate adjusting device, so that the cable can be tightened to some extent. Since the outer struts are accessible from the inside, it is not possible to easily install or replace cables in the outer struts.

Accordingly, the present invention provides a plate fixing frame which can be assembled and detached using simple means, and which can be flexibly applied to the shape and size of the main body, as long as the overall outer shape seen by the user does not adversely affect. For the purpose of

This is achieved by the contour struts being held together by a circumferential clamping element that secures the contour struts from the inside of the frame. In this case, in order to reliably transmit the force, between each end face of two mutually adjacent contour struts, one corner angle connector to which the clamping element acts is arranged. A channel is disposed on the inner wall surface of each outer strut, a clamping element extends in the channel in the strut, and the clamping element is accessible from the inside of the frame, thereby facilitating assembly and disassembly while simultaneously The element does not interfere with the installation of the plates. Since the clamping elements are arranged on the inner surface of the frame, a simple yet secure joint that can be easily separated again is formed between the contour struts without any effect on the visual impression.

Frame support frame according to a preferred embodiment of the present invention, a plurality of external struts having both ends, the outer and inner portions, and the channel formed along the inner portion; A plurality of angle connectors each having a main web having a hole and a protruding portion extending from the main web and vertically connected to the adjacent outer struts, and connecting two adjacent outer struts; And circumferentially extending in a channel formed inside the outer strut and engaged with the angle connector through the hole of the angle connector, and tightened in the channel in the inner side of the outer strut, thereby squeezing the angle connector and the outer strut. And support clamping elements.

Therefore, assembly and disassembly can be easily performed, while at the same time the clamping element does not interfere with the installation of the plate. Since the clamping element is arranged inside the frame, a simple, reliable and easily accessible joint is formed between the contour struts without affecting the outer aesthetics.

Since each corner angle connector has a main web extending parallel to the end face of an adjacent contour strut and has a hole in the main web through which the clamping element penetrates, the clamping element is simple without any additional attachment means. It can work on corner angle connectors.

Each corner angle connector has at least one pair of limbs arranged at each other at an angle, preferably at right angles, corresponding to the angle between adjacent contour struts, each contour strut having a corresponding channel into which each projection is inserted. Thus, a secure fixing between two adjacent contour struts is ensured.

Each protrusion preferably has a groove for holding the clamping element, which groove is used to improve the guiding of the clamping element.

Each corner angle connector preferably has at least one pair of tabs disposed at a predetermined angle from each other at an angle corresponding to an angle between adjacent contour struts, each contour strut corresponding to which each tab is inserted. Because of the gap, it is ensured that the junction between the corner angle connector and the contour strut is formed uniformly over the entire height of the frame.

The outer strut and the corner angle connector are preferably formed of a thermally conductive material so that heat generated by the body surrounded by the frame can be distributed through the frame.

For simple assembly of the frame and the glass plate, each contour strut preferably includes a groove into which the glass plate can be inserted.

Further details, features and advantages of the present invention can be understood in the following detailed description with reference to the accompanying drawings.

1 shows a preferred embodiment of the frame 1 according to the invention. The frame comprises four outer struts 3 with end faces inclined at an angle of 45 °, which are connected to each other via corner angle connectors 5. Thus, this results in a rectangular frame shape which is very suitable for fixing electrical / electronic appliances in the form of switchgear cabinet doors or the like. This is particularly suitable for modern flat screens with LCD displays or plasma displays. The contour strut 3 has an elongated shape, and it is also possible to connect four or more contour struts 3 to each other to form a polygonal frame for a special design. The outer strut 3 is made of a load-bearing material with as high thermal conductivity as possible to assist in cooling the electrical / electronic unit enclosed by the frame. As a preferable material which has such a required characteristic, aluminum is mentioned, for example. This also helps the frame 1 to provide shielding against electromagnetic radiation.

The corner angle connector 5 is preferably made of a hard plastic, for example, mixed with graphite powder in order to improve thermal conductivity. It is also possible to use a light alloy. The form of the said corner angle connector 5 is demonstrated in detail below with reference to FIG. The contour strut 3 and the corner angle connector 5 are connected by a clamping element 7, which clamping element 7 acts on the corner angle connector 5 in the illustrated embodiment, and the It extends around in a channel 8 formed along the inner side of each contour strut 3. Since the channel 8 is accessible from the inside of the frame 1, the clamping element 7 can also be easily worked from the channel 8. The clamping element 7 is formed along the inner side of the contour strut 3 and thus protected, but does not take up unnecessarily large space. The clamping element 7 is preferably in the form of a clamping strip having a high breaking strength, for example made of polyester, but it is also possible to use steel strips, cables or wires. The clamping element 7 may directly act only on the contour strut 3 or may additionally act at several points.

As best shown in FIG. 2, the corner angle connector 5 of the preferred embodiment of the frame 1 according to the invention has a main web 9, the side of the web 9 having an adjacent contour strut 3. Contact parallel to the end face of A hole 11 is formed in the main web 9 so that a clamping element 7 passes through the hole 11, thereby engaging the clamping element 7 and the angle connector 5, thus Force is applied in this area. In the upper region, the corner angle connector 5 has two protrusions 13 arranged at 90 ° to each other (or at a larger angle corresponding thereto if there are more contour struts), which protrusions 13 On the outwardly facing surface there is a groove 15 which supports the clamping element 7 and guides the clamping element 7 with respect to the hole 11. Instead of the shape described above, it is also possible to connect the clamping element 7 to the corner angle connector 5 via a separate attachment device. The protrusion 13 is also used for insertion into the contour strut 3 as described in more detail below. In order to provide greater rigidity and to evenly distribute the transfer of force between the corner angle connector 5 and the contour strut 3, the corner angle connector 5 is inserted into the contour strut 3. It is desirable to have additional tabs 17 used. In the illustrated embodiment, two tabs 17 are arranged in the lower region of the main web 9 and are at the same angle as the protrusions 13. Two additional tabs 21 are arranged on the protruding arms 19 of the upper end of the corner angle connector 5, providing the function of guiding and supporting while fixing the plate to be supported. The outer wall surface of the corner angle connector 5 corresponds to the shape of the outer strut 3.

The contour strut 3, shown in cross section in FIG. 3, has a channel 8 into which one projection 13 of the corner angle connector 5 can be inserted. At the same time, the channel 8 is suitable for receiving the clamping element 7 and opens towards the inside of the frame 1. However, two different channels may be provided, one for the insertion of the protrusion and the other for the support of the clamping element 7. The outer strut 3 can have any desired shape on its outer surface, for example, so that it is possible to arrange a cooling profile element. A gap 27 corresponding to the number of tabs 17 facing the contour strut 3 on the corner angle connector 5 is formed in the contour strut 3 to be used to support the tab 17. . In addition, a spacer strip 25 for the plate body to be inserted is formed on the covering panel 29 to protrude inward from the top of the outer strut 3.

4, which is a cross-sectional view along the line A-A of FIG. 1, shows the contour strut 3 into which the corner connector 5 is inserted. In this case, the projection 13 of the corner angle connector 5 is inserted into the channel 8, while the tab 17 is inserted into the gap 27. The clamping element 7 is guided in the groove 15 and extends through the hole 11. The outer wall of the corner angle connector 5 protrudes slightly outward from the outer wall of the outer strut 3, thereby avoiding sharp edges.

FIG. 5 is a detailed perspective view of the corner connecting portion of the frame shown in FIG. 1, in which one external strut is omitted in order to show a good mechanical shape. This also allows the clamping element 7 to be guided in the groove 15 in the protrusion 13 with respect to the hole 11 and through the hole 11 and through the other protrusion 13 to the other side. The extension is clearly shown.

6 and 7 show a slightly modified second embodiment of the frame 1 in which the glass plate 20 is inserted. Inside the contour strut 3 a groove 18 is formed which engages with the edge of the glass plate 20 which is supported without further fixing means. In the illustrated embodiment, since the bottom of the groove 18 is inclined, the glass plate 20 of the corresponding shape is inserted into the frame 1, and is supported therein and at the same time as the surface of the frame 1. To achieve height. In addition, a sealing element 22 is installed in the region of the groove 18 to ensure a safe seal between the glass plate 20 and the frame 1. Alternatively, known heating means (not shown) may be arranged on the inner side of the glass plate 20 to prevent the glass plate 20 from clouding, especially when the electronic device held in the frame is used outdoors. have.

The frame 1 according to the invention is assembled in the next step. First, the two corner angle connectors 5 are inserted into the outer strut 3. Then, two further contour struts 3 are fitted to the corner angle connector 5 which is preassembled. Optionally, the glass plate 20 is inserted into the groove 18. Finally, two said corner angle connectors 5 are installed in the final said strut 3, and are connected to the basic skeleton through them. Before or after the first processing step, the clamping element 7, which is not yet in the form of a strip of closed curve, is inserted into the groove 15 of the protrusion 13 and passes through the hole 11. When the contour strut 3 and the corner angle connector 5 are inserted into each other, the clamping strip is held firmly, the ends thereof connected, and a commercially available device can be used for this purpose. As a result, the corner angle connector 5 is simultaneously tensioned in the direction of the inner side of the frame, and firmly pressed against the end face of the contour strut 3. The plate to be supported is mounted in advance to the rear wall of the housing, inserted into the frame together with the rear wall, and fixed thereto.

As a result, the individual parts can be very firmly and securely connected to each other as well as easily dismantled again, thereby achieving a cost-effective frame support frame.

The plate support frame of the present invention is cost-effective because the individual parts can be connected very firmly and securely to each other and can be easily dismantled again.

Claims (4)

A plurality of external struts (3) having both ends, an outer side, and an inner side, and a channel (8) formed along the inner side; Two adjacent outer contour struts having a main web 9 having a hole 11 and projections 13 vertically extending from the main web 9 and connected to adjacent contour struts 3 adjacent thereto; A plurality of angle connectors 5 for connecting (3); And Extends around the channel 8 formed inside the contour strut 3, passes through a hole 11 of the angle connector 5, and biases the angle connector 5 and the contour strut 3. A frame for supporting a plate body comprising a clamping element (7) for supporting it. The method of claim 1, An end face of the outer strut 3 is inclined, and each main web 9 of the angle connector 5 extends in parallel to an end face of the adjacent outer strut 3. Dragon frame. The method of claim 1, The plate support frame, characterized in that the projection (13) is inserted into the channel (8) of the outer strut (3). The method of claim 1, The inner frame of each of the external struts (3) further comprises a groove for inserting the glass plate (20) for supporting the plate body.

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