Pull-out device, refrigerator or freezer and dishwasher

Abstract

The invention relates to a pull-out device (1, 1') with a pull-out guide (2) which comprises at least two rails (3, 4) which can be moved relative to one another, and an adjusting device (5, 5') which comprises at least two mounting elements (6) which can be fastened to a wall (10, 10') and on each of a which a holder (7) can be adjusted perpendicularly to a pull-out direction, wherein each holder (7) can be locked on the respective mounting element (6) via a locking apparatus and the locking of the at least two holders (7) can be released via an actuation element (8, 8'), wherein the actuation element (8, 8') can be moved in or opposite the pull-out direction in order to release the locking apparatus. As a result, it is easy to adjust the height of the pull-out guide (2).

Description

[0001] Pull-out device, refrigerator or freezer and dishwasher

[0002] The present invention relates to a pull-out device with a pull-out guide which comprises at least two rails which can be moved relative to one another, and an adjusting device which comprises at least two mounting elements which can be fixed to a wall and on each of which a holder can be adjusted perpendicularly to a pull-out direction, wherein each holder can be locked to the respective mounting element via a locking device and the locking of the at least two holders can be released via an actuating element, and a refrigerator or freezer and a dishwasher.

[0003] CN 218 410 437 U discloses a refrigerator in which a guide rail for a shelf can be mounted at different heights. An adjustment mechanism is provided for this purpose, allowing the guide rail to be attached to vertical posts at different heights. However, the adjustment mechanism is released by a push button that can be moved toward the wall, making handling difficult, especially when there are objects on the shelf.

[0004] It is therefore an object of the present invention to provide a pull-out device by means of which a height adjustment of a pull-out guide can be carried out in a simple manner.

[0005] This object is achieved with a pull-out device having the features of claim 1.

[0006] The pull-out device according to the invention comprises a pull-out guide which has at least two rails which can be moved relative to one another, and an adjusting device which has at least two mounting elements which can be secured to a wall and on each of which a holder can be adjusted perpendicular to a pull-out direction, in particular in the vertical direction in the mounted position, wherein each holder can be locked to the respective mounting element via a locking device and the locking of the at least two holders can be released via an actuating element. The actuating element can be moved in or against the pull-out direction in order to release the locking device. As a result, by moving the actuating element in or against the pull-out direction, the lock can first be released in order to then move the holder into the desired position.This makes adjustment easier, as with a single movement in or against the extension direction, at least two locks on the mounting elements can be released and then an adjustment can be made.

[0007] Preferably, the actuating element is designed such that it protrudes beyond the pull-out guide in the extension direction with an actuating section. This actuating section can then be grasped to release the locking device and moved in or against the extension direction to perform an adjustment. In the installed position, the actuating section is thus accessible from an opening at the front. Optionally, the height of the pull-out guide, which is located in different positions relative to the actuating section, can also be detected via the actuating section.

[0008] Each locking device preferably comprises a bolt slidably mounted on one of the mounting elements, which bolt can be inserted into one of several receptacles on the respective holder. The bolt can thus be used to fix the holder to the mounting element at a predetermined height. Each bolt can be preloaded into a locked position via an energy accumulator, preferably in the form of a spring or spring element, so that release occurs counter to the energy accumulator force, and the energy accumulator secures the locked position.

[0009] For easy adjustment, each holder can be slidably guided along a vertical guide on the mounting element. For this purpose, each mounting element can have two lateral rails that engage around one edge of the holder. Alternatively, other linear guides, such as slots, elongated holes, or guide rails, can be provided.

[0010] For a compact design, the actuating element can comprise a rod that can be moved in the extension direction or counter to the extension direction. Tensile and compressive forces can be transmitted via the rod. The rod can, for example, have two drivers, via each of which one of the bolts of the locking device can be moved. The bolts can, for example, be fixed to the rod, for example by a snap-in connection, so that the bolts are moved together with the rod by the snap-in connection in order to release or lock the lock between the holder and the mounting element. In an alternative embodiment, the actuating element comprises a rotating element that is connected to two bolts of the locking device via two levers. The rotating element can then be rotated via the actuating element, for example the movable rod, in order to move the two levers and thereby release the bolts from the locked position.Here, too, the latches can be guided slidably on the mounting element.

[0011] To provide stable support for the drawer slide, each bracket is angled and includes a support for a stationary rail of the drawer slide on one leg. The other leg, which is particularly vertically aligned, can be slidably guided on the mounting element.

[0012] The pull-out device can be used on furniture or household appliances. The pull-out device is preferably used in a refrigerator or freezer that comprises a body with a wall on which at least one pull-out device is arranged. Only two mounting elements can be provided, which are fixed to the wall at a distance from each other. The two mounting elements serve to securely hold the pull-out guide in both the retracted and extended positions, as they can absorb both weight forces and upward forces caused by a tipping moment.

[0013] The refrigerator or freezer preferably has a pull-out mechanism mounted on opposite walls of the cabinet, with a shelf supported on two movable rails. This allows the shelf to be adjusted in height along with the pull-out guides by unlocking the two locking mechanisms on opposite sides.

[0014] In a further embodiment, the pull-out device according to the invention is used in a dishwasher in which the pull-out device is arranged on at least one wall of a body. Preferably, at least one pull-out device is fixed to each of the opposite walls. This allows a dish basket to be movably held on the body of the dishwasher via the at least one pull-out device.

[0015] The invention will be explained in more detail below using several exemplary embodiments with reference to the accompanying drawings. Figures 1A and 1B show two perspective views of an extension device according to the invention in different positions;

[0016] Fig. 2 an exploded view of the pull-out device without shelf and wall;

[0017] Fig. 3A - 3D several views of the pull-out device of Figure 2 during an adjustment process;

[0018] Fig. 4A and 4B two views of a modified pull-out device in different positions;

[0019] Fig. 5A - 5D several views of the pull-out guide of Figure 4 during an adjustment process;

[0020] Fig. 6A and 6B show two views of the pull-out device of Fig. 4A during an unlocking process;

[0021] Fig. 7 is a perspective view of the actuating element of the

[0022] Extraction device of Figure 4;

[0023] Fig. 8 is an exploded view of the pull-out device of Figure 4;

[0024] Figure 9 is an exploded view of a part of a dishwasher with a pull-out device according to the invention, and

[0025] Figure 10 is a perspective view of the dishwasher with the

[0026] Extraction device of Figure 9 in the assembled position.

[0027] A pull-out device 1 serves for the displaceable storage of a shelf 30, in particular in a household appliance, such as a refrigerator or freezer, but can also be used in a piece of furniture.

[0028] The pull-out device 1 comprises a pull-out guide 2, which has at least two relatively movable rails 3 and 4, between which a pull-out-extending center rail can optionally be arranged. The stationary rail 3 is fixed to two spaced-apart brackets 7, and the at least one movable rail 4 is mounted on the stationary rail or a center rail via rolling elements.

[0029] Each pull-out device 1 further comprises an adjustment device 5 for adjusting the height of the pull-out guide 2 on a wall 10. The adjustment device 5 has two mounting elements 6 arranged at a distance from one another in the pull-out direction, which are fixed to the wall 10, for example via fastening means or a positive fit on the wall 10. A holder 7 is held on each mounting element 6 so as to be displaceable in the vertical direction. The holder 7 can be locked in different positions to the mounting element 6 via a locking device. The locking device can be released via an actuating element 8, which is movable in the pull-out direction. The actuating element 8 comprises an actuating section 9, which protrudes forward on a front side beyond the pull-out guide 2 in the retracted position.In Figure 1A, the shelf 30 is in a lower position and in Figure 1B, the shelf 30 is arranged in a higher position.

[0030] By pulling on the actuating section 9, the actuating element 8 in the form of a rod can be moved in the extension direction, thereby rotating a rotating element 12. Two levers 13 are held on the rotating element 12, each of which is connected to a latch 15 via a connecting piece 14. By rotating the rotating element 12, the latches 15 can be moved from a locked position to an unlocked position in order to then perform a height adjustment.

[0031] Figure 2 shows an exploded view of the adjustment mechanism of the pull-out device 1. The pull-out guide 2 is fixed to the stationary rail 3 on a horizontal leg 70 of the angled holder 7. The angled holder 7 has a vertical web 71, on opposite sides of which recesses 72 are provided, into which the latch 15 can be inserted. In the illustrated embodiment, only two recesses 72 are provided, although a larger number of recesses 72 can also be provided on the holder 7.

[0032] The vertical web 71 is held on the mounting element 6 in a receptacle between two guide rails 60, allowing it to be displaced in the vertical direction. The guide rails 60 are angular in cross-section and each engage around an edge of the vertical web 71. Furthermore, two guide rails 61 are formed on the mounting element 6, between which the latch 15 is displaceably guided. The latch 15 is connected to one of the levers 13, which is connected at the opposite end to the rotating element 12. Each latch 15 is preloaded into the locked position via the connecting piece 14 and an energy accumulator in the form of a spring 16.

[0033] The rotating element 12 is rotatably but immovably mounted on the wall 10 via a bearing element 17. The rotating element 12 has a receptacle 19 for coupling to the actuating element 8, which is designed as a rod and is connected to the receptacle 19 via a pin 18. The actuating element 8 is held on a guide 11 that can be mounted adjacent to a front side of the shelf 30. The actuating section 9 of the actuating element 8 is guided by the guide 11, so that by pulling on the actuating section 9, the rotating element 12 can be rotated in order to move the two latches 15 into an unlocked position via the levers 13.

[0034] Figures 3A to 3D show an adjustment process of the pull-out device 1. In Figure 3A, the pull-out guide 2 is in an upper position, in which the holder 7 is essentially flush with the mounting element 6 with an upper edge. The holder 7 is secured by two latches 15, each of which engages in a lower recess 72 of the holder 7.

[0035] For an adjustment operation, the actuating section 9 of the actuating element 8 is pulled, as shown in Figure 3B. By pulling on the actuating section 9, the rotating element 12 is rotated clockwise, thereby pulling on the two levers 13, which each move the latch 15 from the locked position to an unlocked position. In this position, the holder 7 can now be moved relative to the mounting element 6.

[0036] In Figure 3C, the holder 7 has been moved downward, with the actuating element 8 still in the unlocked position. If the actuating element 9 is now released, the force of the springs 16 ensures that the latch 15 is inserted into the nearest recess 72 on the holder 7, with the levers 13 pivoting the rotating element counterclockwise until the position shown in Figure 3D is reached. The pull-out guide 2 is again securely held on the two mounting elements 6 via the holder 7 and is in a lower position compared to Figure 3A. Figures 4A and 4B show a modified embodiment of a pull-out device 1', which has some of the same components as the pull-out device 1, which is also provided with the same reference numerals.The pull-out device 1' differs in that it features a modified adjustment device 5', each of which comprises two mounting elements 6 on which holders 7 are guided for vertical displacement. A pull-out guide 2 with several rails 3 and 4 is held on the holders 7. In the mounted position, a shelf 30 is supported on two movable rails 4 of the two pull-out guides 2.

[0037] The adjustment device 5' comprises an actuating element 8', which is designed as a rod and has an actuating section 9' that protrudes in the extension direction beyond a front end of the pull-out guide 2 in the retracted position. This makes the actuating section 9' easy to grasp even in the mounted position. A locking device can be released via the actuating section 9' by pressing the actuating element 8' in the opposite direction to the extension direction. Optionally, a different actuating direction in the extension direction can of course also be provided if the direction of movement of the latches 15' is changed.

[0038] In Figure 4A, the shelf 30 is shown in a raised position on the two pull-out guides 2, and in Figure 4B, the shelf 30 is positioned lowered by moving the holders 7. An adjustment process is effected by moving the latches 15', which can be moved via the actuating element 8'. The actuating element 8' is slidably held on a guide element 20, which has a receptacle for a guide web 21 connected to the actuating element 8'.

[0039] Figures 5A to 5D show an adjustment process of the pull-out device 1' of Figures 4A and 4B. The pull-out guide 2 is in an upper position in which the holder 7 is arranged at approximately the same height as the mounting element 6. If an adjustment is now to be made, a compressive force is applied to the actuating section 9', whereby the actuating element 8' is displaced counter to the pull-out direction, so that the two latches 15' are also moved counter to the pull-out direction and thus moved out of a recess 72 in the web 71. This decouples the locking between the mounting element 6 and the holder 7, as shown in Figure 5B. By decoupling the latches 15' from the holders 7, the pull-out guide 2 can now be lowered, with the two holders 7 being displaced downward, as shown in Figure 5C.If the pull-out guide 2 is now to be secured again, the actuating section 9' can be released so that the actuating element 8' is moved into the locked position due to a force storage force, whereby the bolts 15' are inserted into the recess 72 on the holder 7, as shown in Figure 5D.

[0040] The adjustment mechanism is shown in detail in Figures 6A and 6B. In Figure 6A, the adjustment mechanism is in the locked position, with no extension guide shown on the holders 7. The latches 15' each engage in a recess 72 on the holder 7'. If the actuating element 8' is now moved counter to the extension direction, as shown in Figure 6B, the two latches 15' are simultaneously moved out of the recesses 72, so that the holder 7 can be moved vertically relative to the mounting element 6.

[0041] Figure 7 shows the actuating element 8' in detail. The actuating element 8' comprises a driver 23, which is, for example, snapped onto the actuating element 8' or formed integrally. Furthermore, two latches 15' are fixed or formed integrally on the actuating element 8'. The actuating element 8' is guided along the guide element 20 via the driver 23 and is preloaded into the locking position there via a force accumulator in the form of a spring 22.

[0042] Figure 8 shows the adjustment mechanism, in which the guide element 20 is shown between the two mounting elements 6. This guide element comprises two guide webs 21 by means of which the driver 23 is guided in the extension direction and in the opposite direction. Two energy accumulators in the form of springs 22 are arranged between the guide element 20 and the driver 23, which preload the driver 23 into the locking position.

[0043] In the embodiment of Figures 4A and 4B, the locking device is unlocked by a pressure movement, i.e., by pressing in the actuating portion 9'. It is, of course, also possible to unlock the latches 15' by a pulling movement of the actuating element 8' if the latches 15' are arranged on the opposite side of the holders 7.

[0044] Figure 9 shows the pull-out device 1' shown in Figures 4 to 8 prior to installation on a wall 10' of a dishwasher. The wall 10' of the dishwasher can, for example, consist of a stamped metal sheet to which the two mounting elements 6 of the pull-out device 1' are welded, glued, or fixed using mechanical fasteners. The pull-out device 1' comprises a pull-out guide 2, which, as in the previous embodiments, is height-adjustable via the two holders 7. A crockery basket 40 can be fixed to the movable rail 4 of the pull-out guide 2 and can be supported on the movable rail 4 by at least one strut 41 and a connecting device 42. Preferably, a pull-out device 1' is mounted on a wall 10' on opposite sides of the crockery basket 40 in order to guide the crockery basket 40 on opposite sides.

[0045] Figure 10 shows the pull-out device 1' with the dish basket 40 in the assembled position. The dish basket 40 is held movable relative to the wall 10' of the dishwasher via the pull-out guide 2. For height adjustment, the actuating section 9' can move the actuating element 8' to adjust the two holders 7.

[0046] List of reference symbols

[0047] 1 , 1' pull-out device

[0048] 2 drawer guides

[0049] 3 stationary rail

[0050] 4 movable rails

[0051] 5 Adjustment device

[0052] 6 Mounting element

[0053] 7 holders

[0054] 8, 8' actuator

[0055] 9, 9' operating section

[0056] 10, 10' wall

[0057] 11 Guide

[0058] 12 rotating element

[0059] 13 levers

[0060] 14 connecting piece

[0061] 15, 15' bars

[0062] 16 spring

[0063] 17 Bearing element

[0064] 18 cones

[0065] 19 recording

[0066] 20 guide element

[0067] 21 Guide bridge

[0068] 22 spring

[0069] 23 carriers

[0070] 30 filing

[0071] 40 dish basket

[0072] 41 Strut

[0073] 42 Connecting device

[0074] 60 guide rail

[0075] 61 Guide rail

[0076] 70 legs

[0077] 71 vertical bridge

[0078] 72 recess

Claims

Claims 1. Pull-out device (1, 1') with a pull-out guide (2) which comprises at least two rails (3, 4) which can be moved relative to one another, and an adjusting device (5, 5') which comprises at least two mounting elements (6) which can be fixed to a wall (10, 10'), on each of which a holder (7) can be adjusted perpendicular to a pull-out direction, wherein each holder (7) can be locked to the respective mounting element (6) via a locking device and the locking of the at least two holders (7) can be released via an actuating element (8, 8'), characterized in that the actuating element (8, 8') can be moved in or against the pull-out direction in order to release the locking device.

2. Pull-out device according to claim 1, characterized in that the actuating element (8, 8') protrudes in the pull-out direction over the pull-out guide (2) in the retracted position with an actuating section (9, 9').

3. Pull-out device according to claim 1 or 2, characterized in that each locking device comprises a bolt (15, 15') which is displaceable on one of the mounting elements (6) and which can be inserted into one of several recesses (72) on the respective holder (7).

4. Pull-out device according to claim 3, characterized in that each bolt (15, 15') is pretensioned into a locked position via a force accumulator (16, 22).

5. Pull-out device according to one of the preceding claims, characterized in that each holder (7) is guided displaceably along a vertical guide on one of the mounting elements (6).

6. Pull-out device according to one of the preceding claims, characterized in that the actuating element (8, 8') comprises a rod movable in the pull-out direction or against the pull-out direction.

7. Pull-out device according to claim 6, characterized in that the rod has two drivers, via each of which one of the bolts (15') of the locking device can be moved.

8. Pull-out device according to one of claims 1 - 6, characterized in that the actuating element (8) comprises a rotary element (12) which is connected via two levers (13) to two bolts (15) of the locking device.

9. Pull-out device according to one of the preceding claims, characterized in that each holder (7) is angular and has a leg with a support for a stationary rail (3) of the pull-out guide (2).

10. A refrigerator or freezer with a body on which at least one pull-out device (1, 1') according to one of the preceding claims is arranged on a wall (10).

11. Refrigerator or freezer according to claim 10, characterized in that two mounting elements (6) are provided which are fixed to the wall (10) at a distance from one another.

12. Refrigerator or freezer according to claim 10 or 11, characterized in that a pull-out device (1, 1') is provided on each of the opposite walls (10) of the refrigerator or freezer and a shelf (30) is held on the two movable rails (4).

13. Dishwasher with a body on which a pull-out device (1, 1') according to one of claims 1 to 9 is arranged on at least one wall (10').

14. Dishwasher according to claim 13, characterized in that a crockery basket (40) is movably held on the pull-out guide (2).

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