Production method for a poster device and poster device

Abstract

A production method for a poster device with two boards and a frame as well as a poster device. One permanently fixed board is attached to the frame. The other board is removable and can be removed without tools. The frame may be a snap frame and the removable board may be held by snapping elements of the snap frame. The removable board can be removed after the snapping elements have been opened. The method comprises the following steps: ⋅providing a frame and a permanently fixed board comprising a frame-like groove, ⋅placing the frame and the permanently fixed board horizontally, ⋅pouring a flowable gasket material into the frame-like groove so that the groove is completely filled with the flowable gasket material and the flowable gasket material sticks out from the groove, ⋅solidifying the gasket material in such a way that it will not solidify for at least minutes, preferably for at least 20 minutes, ⋅placing the removable board onto the solidified gasket material, ⋅fixing the removable board. The internal space of the resulting poster device is moisture tight.

Claims

1. A method for the production of a poster device which comprises a permanently fixed board which is attached to a frame of the poster device and a removable board, wherein one of the boards is transparent and wherein the poster device comprises an internal space for a poster or the like, comprising the following steps: providing a frame and a permanently fixed board comprising a groove, placing the frame and the permanently fixed board horizontally, pouring a flowable gasket material into the groove so that the groove is completely filled with the flowable gasket material and the flowable gasket material sticks out from the groove, solidifying the gasket material in such a way that it will not solidify for at least 10 minutes, placing the removable board onto the solidified gasket material, and fixing the removable board.

2. The method according to claim 1, wherein the gasket material is a gel.

3. The method according to claim 1, wherein the flowable gasket material consists of a polyurethane gel.

4. The method according to claim 1, wherein the groove runs along the frame.

5. The method according to claim 1, wherein the frame comprises one or more longitudinal aluminum profiles.

6. The method according to claim 1, wherein the boards are made from plastic and/or glass.

7. The method according to claim 1, wherein the frame comprises snapping elements and wherein the removable board is held by the snapping elements of the frame.

8. The method according to claim 1, comprising the step of solidifying the gasket material in such a way that it will not solidify for at least 20 minutes.

9. A poster device comprising a frame, a permanently fixed board which is attached to the frame and a removable board, wherein one of the boards is transparent and wherein the poster device comprises an internal space for a poster or the like, wherein the internal space is protected from moisture by a gasket so that the internal space is moisture-proof, wherein the gasket is attached to a groove, wherein the groove is completely filled with the gasket material and the gasket material sticks out from the groove, and wherein the gasket consists of a solidified gel with the removable board placed on the solidified gel.

10. The poster device according to claim 9, wherein the gasket comprises a sticky surface, the removable board can be bent elastically and the removable board sticks to the gasket.

11. The poster device according to claim 9, wherein the removable board is a self-supporting foil made of plastic.

12. The poster device according to claim 9, wherein the gasket consists of a polyurethane gel or the gasket material comprises polyurethane.

13. The poster device according to claim 9, wherein the gasket is free of pores.

14. The poster device according to claim 9, wherein the groove runs along the frame.

15. The poster device according to claim 9, wherein the frame comprises one or more longitudinal aluminum profiles.

16. The poster device according to claim 9, wherein the boards are made from plastic and/or glass.

17. The poster device according to claim 9, wherein the frame comprises snapping elements and wherein the removable board is held by the snapping elements of the frame.

18. The poster device according to claim 17, wherein the snapping elements are formed from aluminum.

19. The poster device according to claim 9, wherein the width of the opening of the groove is 4 to 8 mm.

20. The poster device according to claim 9, wherein the permanently fixed board consists of two thin layers joined together by ribs.

Description

(1) These and other features of the present invention will become more apparent from the following description of the illustrative embodiments.

(2) FIG. 1 illustrates pouring of a flowable gasket material into a frame-like groove;

(3) FIG. 2 shows a section of an embodiment of a poster device;

(4) FIG. 3 is a top view on a corner connection of the frame.

(5) FIG. 1 shows a permanently fixed board 1 which is attached to a frame 2. The frame 2 comprises a frame-like groove 3. The frame-like groove 3 runs as a rectangle in a frame-like manner. The frame 2 and the permanently fixed board 1 are placed horizontally. A flowable gasket material 4 is poured into the frame-like groove 3 so that the frame-like groove 3 will be completely filled with the flowable gasket material 4. In addition, the flowable gasket material 4 sticks out from the frame-like groove 3. During casting, the head 5 of a casting machine is moved parallel to the frame-like groove 3, as indicated by an arrow.

(6) When the frame-like groove 3 is completely filled with the flowable gasket material 4, solidifying of the gasket material 4 will take place in such a way that it will not solidify for at least for at least 20 minutes. Preferably, solidification will take place within 40 minutes.

(7) As soon as the gasket material 4 has solidified, a removable board is placed on the gasket. The removable board is then attached to the gasket. Since the upper surface of the gasket is completely flat, nearly no contact pressure is required to tightly connect the removable board to the gasket. A sticky surface of the gasket is sufficient to bond the board to the gasket in a moisture-proof manner.

(8) FIG. 2 shows a section of a preferred embodiment of a poster device.

(9) The poster device comprises a frame 2 and a permanently fixed board 1 which is attached to the frame 2. To save weight, the permanently fixed board 1 consists of two thin layers 6 joined together by this ribs 7. The permanently fixed board 1 is mechanically stable and made of plastic. The permanently fixed board 1 extends into a circumferential lateral groove 8 of the frame 2 and is thus held in place. In addition, the permanently fixed board 1 can be glued in the groove 8.

(10) The frame 2 comprises an upper and a lower frame-like groove 3. Both of them run parallel to the frame 2. Both frame-like grooves 3 are circumferential grooves. Both frame-like grooves 3 are filled with a circumferential gasket 10. Each gasket 10 protrudes from its frame-like groove 3 and consists of a polyurethane gel. The surface of both gaskets 10 is sticky. The top area of each gasket 10 is completely flat.

(11) The frame 2 consists of four aluminum longitudinal profiles 11 joined together by corner connectors 9 which are shown in FIG. 3. Four snapping elements 12 are hinged to the four aluminum longitudinal profiles 11 of the frame 2 by means of hinge joint 13. The snapping elements 12 are made from aluminum profiles. Pre-stressed strip-like springs (not shown) are attached on one side to the snapping elements 12 and on the other side to the aluminum longitudinal profiles 11 in such a manner that the snapping elements 12 can be hold in an opened and closed position by means of the spring. Two opposite sides of the stripe-like springs are held in grooves. In FIG. 2, the snapping elements 12 are in its closed position.

(12) There are two transparent removable boards 14 which are made of plastic. Each removable board 14 is placed on the top area of the corresponding gasket 10. The sticky surface of each top area is sufficient in order to held each removable board 14 and to provide a moisture tight connection between each gasket 10 and the corresponding transparent removable board 14. Each removable board 14 is made of an elastic plastic. Each removable board 14 is thin and is like a self-supporting foil. Each removable board is about 0.2 mm thick.

(13) In addition, the removable boards 14 are attached to the gaskets 10 by the snapping elements 12. As a result, the poster device comprises two moisture tight internal spaces. In every internal space there is a poster 15 which is perfectly protected from moisture.

(14) The permanently fixed board 1 is stiff compared to the removable board 14 and can hardly be bent.

(15) FIG. 3 shows a section of the frame 2 and is a top view on a corner of the frame 2 showing an angular corner connector 9. Two longitudinal profiles 11 are fixed to the longitudinal profiles 11 by means of rivet joints 16. FIG. 3 shows the width of the opening of the frame-like groove. The width of the opening is 6 mm and corresponds with the shown upper width of the gasket 10. The width at the bottom of the frame the frame-like groove 10 is 6.5 mm. The bottom is therefore slightly wider than the opening. The length of the frame-like groove depends on the dimensions of the frame 2.

(16) While the invention has been illustrated and described in detail in the foregoing drawings and description, the same is to be considered as exemplary and not restrictive in character, it being understood that only illustrative embodiments thereof have been shown and described.