BAG OPENING DEVICE

Abstract

The subject of invention is a device (1) for opening bags, in particular bags containing loose materials, consisting of sharp-pointed elements (6) mounted in at least one row and fixed on at least one profile (5), characterized in that the sharp-pointed elements (6) are shaped like an arrowhead and the ends of at least one profile (5) are in which they are embedded are attached to the perimeter of the lower frame (2) of the device (1), with a movable frame (3) placed above the lower frame (2), movably connected to the lower frame (2) by means of pins placed at the corners of the frames (2, 3) and a locking mechanism (4), and containing at least one profile (7) with a hole adapted to the dimensions of the sharp-pointed elements (6) and positioned over the profile (5) with the sharp-pointed elements (6), the device (1) further comprises handles (9) attached to the lower frame (2).

Claims

1. A device (1) for opening bags, in particular bags containing loose materials, consisting of sharp-pointed elements (6) mounted in at least one row and fixed on at least one profile (5), characterized in that the sharp-pointed elements (6) are shaped like an arrowhead and the ends of at least one profile (5) are in which they are embedded are attached to the perimeter of the lower frame (2) of the device (1), with a movable frame (3) placed above the lower frame (2), movably connected to the lower frame (2) by means of pins placed at the corners of the frames (2, 3) and a locking mechanism (4), and containing at least one profile (7) with a hole adapted to the dimensions of the sharp-pointed elements (6) and positioned over the profile (5) with the sharp-pointed elements (6), the device (1) further comprises handles (9) attached to the lower frame (2).

2. Device according to claim 1 characterized in that at least one foldable blocking member (13) of the movable frame (3) is mounted on at least one side of the lower frame (2).

3. Device according to claim 1, characterized in that the movable frame (3) comprises reinforcing ribs (8) between its sides and at least one profile (7) with a hole.

4. Device according to claim 1, characterized in that the lower frame (2) comprises support members (10) positioned at its corners.

5. Device according to claim 1, characterized in that the pins are ended on one side with a spherical swelling or a joint.

6. Device according to claim 1, characterized in that it comprises a bumper (11) fixed to the lower frame (2).

7. Device according to claim 1, characterized in that the bumper (11) is optionally in the form of a vertical section which is attached to the lower frame (2) on one side and includes a bracket (111) on the other side.

8. Device according to claim 1, characterized in that the bumper (11) folds at the height of the movable frame (3).

9. Device according to claim 1, characterized in that the bumper (11) comprises a damping element in the form of a rubber element or at least one spring.

10. Device according to claim 1, characterized in that the locking mechanism (4) is in the form of at least two springs.

11. Device according to claim 1, characterized in that it comprises four springs arranged between the lower frame (2) and the movable frame (4), at their corners.

12. Device according to claim 1, characterized in that the pins connecting the lower frame (2) to the movable frame (3) are located inside springs arranged at the corners of the frames.

13. Device according to claim 1, characterized in that the device has two rows of sharp-pointed elements (6), the rows being at right angles to each other.

14. Device according to claim 1, characterized in that the sharp-pointed elements (6) have a different tip angle.

15. Device according to claim 1, characterized in that sharp-pointed elements (6) with a larger arrowhead angle and pointed elements with a smaller arrowhead angle are arranged alternately in a row.

16. Device according to claim 1, characterized in that the sharp-pointed elements (6) are detachably mounted on the profile.

17. Device according to claim 1, characterized in that the sharp-pointed elements (6) are mounted on the profile movably in relation to the fixing part.

18. Device according to claim 1, characterized in that the sharp-pointed elements (6) are made of steel.

19. Device according to claim 1, characterized in that the lower frame (2) and the movable frame (3) are preferably square-shaped.

20. Device according to claim 1, characterized in that the device comprises a support mechanism (12) enabling the device to be mounted on a container, semi-trailer.

21. Device according to claim 20, characterized in that the support mechanism (12) of the device comprises two opposing handles connected by struts (121) with holes slidably positioned in toothed racks (122), and the handles comprise profiled handles connectors with the struts, which connectors comprise pin-locked holes.

Description

[0037] An object according to the invention is illustrated in the figure, wherein the respective figures represent:

[0038] FIG. 1 Device according to the invention;

[0039] FIG. 2 Cross-section of the device according to the invention;

[0040] FIG. 3 Device according to the invention with a bumper;

[0041] FIG. 4 Device according to the invention with a folded bumper;

[0042] FIG. 5 Device according to the invention with a support mechanism;

[0043] FIG. 6 Device according to the invention with a folding blocking member in the folded form;

[0044] FIG. 7 Device according to the invention with a folding blocking member in the unfolded form.

[0045] FIG. 1 shows a device 1 according to the invention which consists of two square-shaped frames parallel to each other: a lower frame 2 and a movable frame 3 connected by pins placed in the corners of the frames. A locking mechanism is mounted between the lower frame 2 and the movable frame 3, which in the embodiment of the device according to the invention is in the form of four springs 4 placed at the corners of the frames 2, 3. The pins between the frames (not shown) are located inside the springs 4. Two profiles 5 are fastened perpendicularly to each other on the lower frame 2 in such a way that their ends are fixed on the circumference of the lower frame 2, which is also shown in FIG. 2.

[0046] The profiles 5 have sharp-pointed elements 6 (shown in FIG. 2) in the shape of an arrowhead, the elements being arranged alternatelywith a larger arrowhead angle and a smaller arrowhead angle. On the movable frame 3, profiles are mounted with holes 7 adjusted to the dimensions of pointed elements 6 and placed over the profiles 5 with sharp-pointed elements 6. Between the profiles with holes 7 and the perimeter of the mobile frame 3, reinforcing ribs 8 are fixed.

[0047] On the lower frame 3, on opposite sides, handles 9 are mounted, enabling the device according to the invention to be mounted on size-adapted containers or to be mounted on a support mechanism. On the underside of the lower frame 3, support members 10 are attached.

[0048] FIG. 3 shows an example of a device 1 according to the invention in which a bumper 11 is mounted on the lower frame 2. The bumper is in the form of a section which at one end is attached to the lower frame 2 while the other end comprises a bracket 111. The bracket 111 in the illustrated embodiment is in the form of a rectangular profile. In another embodiment, the longer sides of the support 111 may be bent towards the device according to the inventionthis facilitates the stabilization of the bag to be opened at the height of the frames of the device 1. The height of the bumper 11 is adjusted in such a way that when it is folded, the bracket 111 is on the movable frame 3. The buffer 11 may comprise a damping element in the form of a rubber element or a spring.

[0049] The bumper, at the height of the movable frame, folds, and after foldingas shown in FIG. 4its upper part is placed on the movable frame 3, which additionally secures against uncontrolled pressure on the movable frame 3 and the protrusion of sharp-pointed elements 6 when the device does not is used.

[0050] FIG. 5 shows a device according to the invention with a support mechanism 12. The support mechanism 12 comprises struts 121 with holes for length adjustment which struts 121 are slidably positioned in the toothed rack 122. The connection of the struts 121 and the toothed rack 122 as well as the length adjustment is possible by means of pins 123.

[0051] The toothed racks 122 make it possible to adjust the length of the support mechanism 12 depending on the width of the container on which the device according to the invention is to be placed. The struts 121 are connected to the handles 124 of the support mechanism 12. The handles 124 comprise profiled connectors 125 of the handle 124 with struts 121, which connectors include pin-lockable holes which allow the height of the struts 121 on which the device of the invention is mounted to be adjusted.

[0052] Both the handles 9 of the device according to the invention and the handles 124 of the support mechanism can comprise hooks (91; 1241) to facilitate mounting the device according to the invention to the container by means of ropes or chains.

[0053] FIGS. 6 and 7 show an embodiment of the invention in the form of a bag-opening device with a folding blocking member 13 attached to the lower frame 2. FIG. 6 shows the situation in which the folding blocking member 13 is in a closed form and the operation of the device according to the invention is possible, while FIG. 7 shows a situation in which the foldable locking element 13 is unfolded and one of its parts blocks the movement of the movable frame 3.