SHELF

Abstract

A shelf is provided including shelf frames having hole lines, in particular formed by one front and one rear bar each and comprising pull-out rails which extend substantially horizontally along one shelf frame each, in particular from a front bar to a rear bar, and are mounted thereon via a front rail holder and via a rear rail holder. An upper and a lower hook pin are formed on each rail holder, which hook pins are intended for engagement in holes of the hole lines and engage behind wall regions adjacent to the holes, in particular bar wall regions. The upper hook pin of the rear rail holder points upwards. The lower hook pin of the rear rail holder points upwards.

Claims

1. A shelf, comprising: shelf frames having hole lines formed by one front and one rear bar each and comprising pull-out rails which extend substantially horizontally along one shelf frame each from a front bar to a rear bar, and are mounted thereon via a front rail holder and via a rear rail holder, wherein an upper and a lower hook pin are formed on each rail holder, which hook pins are intended for engagement in holes of the hole lines and engage behind wall regions adjacent to the holes, or bar wall regions, wherein the upper hook pin of the rear rail holder points upwards, and wherein the lower hook pin of the rear rail holder points upwards.

2. The shelf according to claim 1, wherein the hooks of the upper hook pins are longer than the hooks of the lower ones.

3. The shelf according to claim 1, wherein pin portions of the hook pins extend in and pass through the holes and that the hooks of the hook pins extend distally from the pin portions.

4. The shelf according to claim 3, wherein the hooks terminate at hook end faces and the pin portions each have pin mating faces opposite the hooks, and in that for lower hook pins the distance between end face and mating face is less than the diameter of the holes.

5. The shelf according to claim 4, wherein for upper hook pins the distance between end face and mating face is greater than the diameter of the holes.

6. The shelf according to claim 1, wherein the distance between the hook pins of a rail holder corresponds to the distance between adjacent holes of the hole lines, and hook pins of a rail holder can be fixed in the adjacent holes by inserting the upper hook pins, lifting the rail holders and inserting the lower hook pins in the bars.

7. The shelf according to claim 1, wherein the upper hook pin of the front rail holder points upwards and/or the lower hook pin of the front rail holder points downwards.

8. The shelf according to claim 1, wherein the pin portion of the lower hook pin has a clearance with respect to the hole of at least one between of 3% and 20%, between 6% and 13%, and around 9%, of its diameter.

9. The shelf according to claim 1, wherein the vertical protrusion of the hook of the lower hook pin with respect to the pin portion is at least one of between 2% and 18%, between 5% and 12%, and around 8%, of the diameter of the pin portion.

10. The shelf according to claim 1, wherein between the lower hook of the rear rail holder and an abutment surface for the abutment of the rail holder on the outside of the bar, a vertically downwardly extending slit is formed, the width of which corresponds substantially to the thickness of the bar wall.

11. The shelf according to claim 1, wherein the lower hook pin extends at the level of a support leg supporting the pull-out rail and/or that the rail holder has an L-shaped cross section.

12. The shelf according to claim 1, wherein the pull-out rail is configured as a multi-part telescopic rail, the pull-out length of which corresponds to or is greater than the distance between the front and rear bars.

13. The shelf according to claim 1, wherein a right-hand pull-out rail supports a pull-out on the right and a left-hand pull-out rail on the left, and in that the respectively associated rail holders are configured to be mirror-symmetrical with respect to one another.

14. The shelf according to claim 15, wherein the pull-out can be loaded with a weight which corresponds to a multiple, or at least six times, the torsional resistance force of each pull-out rail in the unmounted state which the latter opposes to a torsional force.

15. A rail holder on which an upper and a lower hook pin are configured which are intended for engagement into holes of hole lines and which engage behind wall regions, in particular bar wall regions, adjacent to the holes, and wherein the upper hook pin of the rail holder points upwards, wherein the lower hook pin of the rail holder points upwards.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The disclosure will now be described with reference to the drawings wherein:

[0045] FIG. 1 shows a schematic perspective drawing of a part of a shelf, showing a part each of a front and a rear bar, and a telescopic rail, in an unassembled state, according to an exemplary embodiment of the disclosure;

[0046] FIG. 2 shows a schematic perspective drawing of the part of the shelf as shown in FIG. 1, wherein the telescopic rail is tilted and inserted into holes of hole lines with the upper hook pins of the rail holders according to an exemplary embodiment of the disclosure;

[0047] FIG. 3 shows a schematic perspective drawing of the part of the shelf as shown in FIG. 1, wherein the telescopic rail is inserted into holes of hole lines with the upper and the lower hook pins of the rail holders according to an exemplary embodiment of the disclosure;

[0048] FIG. 4 shows a schematic perspective drawing of the part of the shelf as shown in FIG. 1, wherein the telescopic rail is inserted into holes of hole lines with the upper and lower hook pins of the rail holders and is also extended according to an exemplary embodiment of the disclosure;

[0049] FIG. 5A shows an enlarged perspective view of a part of the shelf in the same exemplary embodiment of the disclosure, in which the engagement of a rear rail holder with both hook pins in the hole line of the bar is evident;

[0050] FIG. 5B shows an enlarged perspective view of a part of the shelf in the same exemplary embodiment of to the disclosure, in which the rear rail holder is tilted and inserted only with its upper hook pin into a hole of the hole line of the bar;

[0051] FIG. 6 shows a schematic perspective drawing of the part of the shelf as shown in FIG. 1, wherein the telescopic rail is shown;

[0052] FIG. 7 shows a schematic sectional drawing of the part of the shelf as shown in FIG. 1, with the front rail holder shown;

[0053] FIG. 8 shows a schematic sectional drawing of the part of the shelf as shown in FIG. 1, wherein the rear rail holder is shown; and

[0054] FIG. 9 shows a further enlarged sectional view of FIG. 8.

DESCRIPTION OF EXEMPLARY EMBODIMENTS

[0055] A small section of a shelf 10 is shown in FIG. 1. The shelf 10 has 4 bars, of which a front bar 12 can be seen in FIG. 1. The front bar 12 is spaced from a rear bar 14 and rests on the floor. Both bars 12 and 14 form a shelf frame 15, in the illustration according to FIG. 1 a left shelf frame 15 of the shelf 10. The bars can be connected to each other, e.g. at the top and bottom, in any known manner, e.g., by a connecting strut not shown, for example by means of screw connections.

[0056] The shelf 10 can be part of a shelf system in which several individual shelves are connected to each other. The shelves can be equipped with different shelf elements as desired. The shelf 10 considered here is designed for a telescopic pull-out at the location shown, of which a left pull-out rail 22 is shown in the figures.

[0057] Bar 12 and bar 14 each have a plurality of holes 16 arranged one above the other in a grid pattern, i.e., at the same distance from one another. A front hole line 18 is thus formed on the front bar 12, and a rear hole line 20 is formed on the rear bar 12.

[0058] In the position shown in FIG. 1, the pull-out rail 22 is not yet hooked into holes 16 of the hole lines 18 and 20. A front rail holder 24 and a rear rail holder 26 are intended for hooking in. The rail holders 24 and 26 are an integral part of the pull-out rail 22.

[0059] The front rail holder 24 has two hook pins on its side facing the hole line 18, namely an upper hook pin 28 and a lower hook pin 30. The rear rail holder 26 also has two hook pins, namely an upper hook pin 32 and a lower hook pin 34, which can be seen, for example, in FIG. 5.

[0060] The hook pins 28 to 34 have different orientations and configurations. The hook pins 28, 32 and 34 point upwards, and the hook pin 30 points downwards. Furthermore, the upper hook pins 28 and 32 are slightly longer than the lower hook pins 30 and 34. Each of the hook pins consists of a pin portion 36, better seen in FIGS. 7 and 8, and a hook 38.

[0061] The distance from the top of the pin portion 36 of the upper hook pin 28 to the bottom of the hook 38 of the lower hook pin 30 on the front rail holder 24 is slightly less than the distance from the bottom edge of the hole 16 intended for engagement of the lower hook pin 30 to the top edge of the hole 16 intended for engagement of the upper hook pin 28.

[0062] The distance from the top of the pin portion 36 of the upper hook pin 32 to the bottom end of the pin portion 36 of the lower hook pin 34 on the rear rail holder 26 is slightly less than the distance from the bottom edge of the hole 16 intended for engagement of the lower hook pin 34 to the top edge of the hole 16 intended for engagement of the upper hook pin 32.

[0063] The distance from the upper end surface of the hook 38 of the upper hook pin 28 to the underside of the pin portion 36 of the lower hook pin 30 on the front rail holder 24 is slightly larger than the distance from the lower edge of the hole 16 intended for engagement of the lower hook pin 30 to the upper edge of the hole 16 intended for engagement of the upper hook pin 28.

[0064] The distance from the upper end surface of the hook 38 of the upper hook pin 32 to the underside of the pin portion 36 of the lower hook pin 34 on the rear rail holder 26 is slightly larger than the distance from the lower edge of the hole 16 intended for engagement of the lower hook pin 34 to the upper edge of the hole 16 intended for engagement of the upper hook pin 32.

[0065] With the dimensioning rules in the 4 preceding paragraphs, it is achieved that the pull-out rail 22 in raised condition can be inserted from the tilted position according to FIG. 2 into the position abutting against the bars 12 and 14 according to FIG. 3 and then be lowered, and that in this abutting, lowered position the pull-out rail 22 is locked against accidental falling out.

[0066] In the lowered position, the hooks 38 of the hook pins 28, 30 and 32 engage behind the bar wall, so the pull-out rail cannot be separated from the bars 12 and 14 either by tilting or swiveling or by pulling it straight out. For more information on the hook 38 of the lower hook pin 34 of the rear rail holder 26, please refer to the explanation below.

[0067] FIG. 4 shows the pull-out rail 22 schematically in the partially extended state. A fixed part 40 is apparent, to which the rail holders 24 and 26 are attached. A first movable part 42 is mounted thereon, and a second movable part 44 is mounted thereon. A drawer or any other pull-out element such as a board is mounted on the second movable part 44.

[0068] When fully extended, this extends together with the second movable part 24 in front of the front bar 12. In this state, but also already in the state shown in FIG. 4, the pull-out rail acts like a two-sided lever, with the second movable part 44 as the load arm and the fixed part 40 as the power arm. The lever bearing point is then the front rail holder 24.

[0069] When a weight is applied to the pull-out element, the weight force is translated into an upward force via this two-sided lever. This force acts upward on the rear rail holder 26.

[0070] In this condition, the hook 38 of the lower hook pin 34 of the rear rail holder 26 comes into play according to the disclosure: in particular, when the weight force is so great that it could cause the pull-out rail 22 to swerve by twisting, the hook 38 of the hook pin 34 prevents twisting. The pull-out rail 22 has a much higher section modulus in the vertical direction than in the horizontal direction. Untwisted, it is therefore capable of absorbing considerable loads, whereas it easily fails when twisted.

[0071] In particular, twisting leads to wear of the guide elements provided internally in the pull-out rail 22. These may include, for example, balls or rollers that run on rolling bearing tracks. The rolling bearing tracks can have a semi-circular cross-section, for example, and would be widened, as it were, by twisting the pull-out rails, so that safe guidance by the guide elements would no longer be ensured.

[0072] In this respect, according to the disclosure, the long-term stability of the shelf with telescopic pull-out is substantially improved by the simple action of the hook 38 of the hook pin 34 of the rear rail holder 26. This hook points upwards so that, when the force on the rear rail holder 26 is directed upwards as described above, it engages behind the wall of the bar 14 and holds the rail holder 26 securely and, above all, upright on the rear bar 14 even in this loaded position.

[0073] This position can be seen in FIGS. 5A and 5B. In FIG. 5A, the rear rail holder 26 is shown in the assembled position in which the weight force bearing on the telescopic pull-out pushes it upward. FIG. 5B shows that previously, that is, without the upward force, it can be readily inserted into the hole 16 in the tilted position with the hook 38 of the upper hook pin 32, and then pivoted so that the hook pin 34 can pass through the underlying hole 16.

[0074] FIG. 6 shows a perspective view of the pull-out rail with the fixed part 40, the rear rail holder 26 and the front rail holder 24. The position and arrangement of the hook pins 28, 30, 32, and 34 are also shown.

[0075] FIG. 7 shows how the front rail holder 24 passes through holes 16 in the bar 12. Each hook pin 28 and 30 includes a pin portion 36 and a hook 38. The hook 38 of the upper hook pin 28 is longer than the downward facing hook 38 of the lower hook pin 30. The pin portions 36 are supported with some clearance in the holes 16.

[0076] FIG. 8 shows how the rear rail holder 26 is constructed in section. The hook pins 32 and 34 pass through the holes 16 with their pin portions 36, and the hooks 38 engage behind the wall 50 of the bar. The rail holder 26 rests against the wall 50 of the bar with an abutment surface 52. When an upward force is applied to the rail holder 26, both hooks 38 of the hook pins 32 and 34 extend to engage behind the wall 50.

[0077] The more detailed design of the rear rail holder 26 can be seen in FIG. 9. It can be seen that the pin portions 36 are guided with clearance in the holes 16. The distance of the upper end portion 56 of the lower hook 38 to the underside 58 of the pin portion 36 of the lower hook pin 34 is so small that the hook pin 34 can pass through the hole 16.

[0078] However, this does not apply to the upper hook pin 32. Therefore, the upper hook pin 32 can only be inserted into its associated hole 16 when tilted. If, on the other hand, a force is applied upwards to the rail holder 26, both hook pins 32 and 34 lock so that secure storage is ensured.

[0079] It is understood that the foregoing description is that of the exemplary embodiments of the disclosure and that various changes and modifications may be made thereto without departing from the spirit and scope of the disclosure as defined in the appended claims.