EP3968819A1

EP3968819A1 - Side panel for a drawer

Info

Publication number: EP3968819A1
Application number: EP20724777.6A
Authority: EP
Inventors: Gerrit Staufenberg
Original assignee: Paul Hettich GmbH and Co KG
Current assignee: Paul Hettich GmbH and Co KG
Priority date: 2019-05-17
Filing date: 2020-05-04
Publication date: 2022-03-23
Anticipated expiration: 2040-05-04
Also published as: EP3968819B1; CN113645880A; DE102019113101A1; WO2020233966A1; ES2946887T3; CN113645880B

Abstract

The invention relates to a side panel (4) for a drawer (1), having means (5) on a front side for connection to a front panel and means (9) on a rear side for connection to a rear wall (3), wherein the side panel (4) has a single-part or multi-part covering (7, 8) and a plurality of molded parts (11, 12, 13, 15, 17) inserted into each other, which form a core (10) for the covering (7, 8), wherein an equalizing element (14) is provided between at least two molded parts (12, 13), and the distance between the two molded parts (12, 13) in the longitudinal direction of the side panel (4) is adjustable by elongating or compressing the equalizing element (14). The invention furthermore relates to a method for producing a side panel (4).

Description

Side frame for a drawer

The present invention relates to a side frame for a drawer, which has on a front side means for connection to a front panel and on a rear side means for connection to a rear wall, the side frame being a one-part or multi-part cover and a plurality of nested molded parts has which form a core for the envelope, and a method for Fierstellung a side frame of a drawer.

DE 10 2017 121 597 A1 discloses a drawer in which a Be tenzarge is formed by a thin-walled envelope and an ordered core in the envelope. The inner core comprises a large number of molded parts that are nested and give the side frame the necessary stability. The molded parts made of plastic and the casing formed from a thin sheet of steel can vary in length due to tolerances, precisely because the tolerances on the molded parts add up in the longitudinal direction. This can lead to the formation of a gap or increased contact pressure at the ends of the side frame of the drawer.

It is therefore the object of the present invention to provide a side frame for a drawer that can be produced in the longitudinal direction exactly in the desired length. Furthermore, an effective method for producing a side frame of a drawer is to be provided.

This object is achieved with a side frame with the features of claim 1 and a method for producing a side frame of a drawer with the features of claim 12.

In the side frame according to the invention, the core comprises at least two molded parts, between which a compensating element is provided, the distance between the two molded parts in the longitudinal direction of the side frame being adjustable by stretching or compressing the compensating element.

This allows tolerances in the manufacture of the molded parts to be compensated in order to produce the core in exactly the desired length relative to the Umhül development. Particularly when using different materials, such as thin sheet steel and molded parts made of plastic, more precise positioning of the molded parts at the ends of the side frame can be guaranteed. the. The compensating element allows an adjustment in the longitudinal direction of the side frame, but can be designed to be dimensionally stable perpendicular to this in the direction of the width of the side frame in order to support the casing in the area of the compensating element.

The adjustment path made possible by the compensating element is preferably in a range between −4 mm to + 4 mm, in particular between −2 mm and +2 mm. With longer cores made up of more than 3 molded parts, several compensation elements can optionally be provided on a side frame.

The compensating element is preferably designed as a flexible element integrally with at least one of the two molded parts, preferably also with both molded parts. The molded parts and the compensating element can be made of plastic, for example as injection molded parts. The flexible element can comprise bendable webs that connect the two molded parts to one another. The bendable webs can be V-shaped, U-shaped, arched, ge arched or meandering in order to be adjustable in

To enable longitudinal extension. Alternatively or additionally, the bend ble webs can be inclined to the longitudinal direction in order to be able to adjust the two mold parts in the longitudinal direction relative to one another. The webs of the compensating element can have the same width as the molded parts, so that the casing is also supported in this area.

Alternatively or additionally, the compensation element can be designed in two parts. The compensating element can contain latching or clamping elements that allow a shortening or lengthening between two molded parts in a predetermined area in a stepped or stepless manner via positive and / or non-positive locking, thus enabling the two molded parts to be adjusted relative to one another. Here, by means of clamping forces or locking means, in a two-part or multi-part structure, one side of the molded part can be kept slidable to another side of the molded part, with one or both sides providing locking or clamping elements that interact with suitable structures on the other side. For example, a part of the compensation element can be designed as a corner part, in particular as a web, since it can be inserted into a receiving part on an adjacent molded part. The receiving part can form a recording between two webs and fix the plug-in part in a clamping or locking manner. When using flexible elements or clamping elements in the off equal element, an end stop can also be used, which limits an overstretching or compression of the flexible element or prevents a Lö sen of the clamping elements by pulling apart.

This end stop can be formed integrally, preferably as a projection, on the flexible element or clamping element, and as a separate element on the compensating element.

A groove for inserting egg nes edge of a bottom of the drawer can be formed on the molded parts of the core of the side frame in order to be able to connect the side frame in a stable manner to a floor.

For a small use of material, the molded parts can at least partially consist of a hollow support structure formed by honeycombs or cells. This enables high stability with little use of material.

The covering is preferably glued to the core, the covering being made from one or more thin-walled elements, in particular from a bent sheet metal.

The side frame formed in this way can be used in particular in a drawer that is installed in furniture or household appliances.

In the method according to the invention, a plurality of molded parts are first put together to form an elongated core, the individual molded parts being able to have corresponding contours in the longitudinal direction at the edges, for example with tongue and groove or other geometries. A compensation element is provided at least between two molded parts or within a molded part. In a further step, adhesive is applied between a cover and the core, optionally only on the cover or only on the core or on both. Furthermore, the length of the core is changed by stretching or compressing the at least one off equal element. The above steps can be carried out in any order. At the end, the adhesive is cured to adhere the cladding to the length-adjusted core.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying drawings. Show it: Figure 1 is a perspective view of a drawer with a side frame according to the invention;

Figure 2 is a perspective view of the side frame of the drawer

Figure 1;

FIG. 3 shows a view of the core of the side frame of FIG. 2 without a cover;

FIG. 4 shows a view of the core without the end-side elements for connection to a front panel and a rear wall;

FIG. 5 shows a detailed view of two molded parts, between which a compensation element is provided;

FIG. 6 shows a perspective view of a further exemplary embodiment with a compensating element;

FIG. 7 shows a perspective view of a molded part of the core, and FIG

Figures 8 to 14 detailed views of modified configurations of equal elements.

A drawer 1 comprises a bottom 2, a rear wall 3 which connects two side frames 4 to one another, and a front panel, not shown. The front panel is set on the two side frames 4 on means 5 for connection to the front panel, which are formed in the illustrated embodiment as a dowel.

In Figure 2, a side frame 4 is shown in detail without the other components, means 5 for connection to a front panel are seen on a front, and instead of the two dowels four dowels are shown. The Seitenzar ge 4 comprises an outer visible envelope with an inner wall 7 and egg ner outer wall 8, which surround a core. The casing can be made from one or more thin-walled elements, in particular a bent sheet metal. Below the inner wall 7 is a groove 6 for inserting egg Nes edge of the bottom 2 of the drawer is formed. In Figure 3, a core 10 of the side frame 4 is shown, which is glued to the envelope, not shown. The core 10 comprises a plurality of molded parts 11, 12, 13, 15 and 17, which are positively connected at least at one edge to an adjacent molded part. The molded parts 11, 12, 13, 15 and 17 are essentially plate-shaped, and the number of molded parts can be varied in order to change the length of the core 10. On the endseiti gene molded part 15, which is arranged on a front side, are holding elements

16 is provided, on which means 5 for connection to a front panel are arranged. The holding elements 16 are held adjustable on the molded part 15 in order to be able to adjust the side and / or height of the front panel relative to the side frame 4.

On the last molding 17 seen in the longitudinal direction means 9 are provided for connec tion with a rear wall 3, which grasp an angular holding means to which the rear wall 3 can be fixed via fastening means.

All molded parts 11, 12, 13, 15 and 17 have a groove 6 into which an edge of the base 2 can be inserted.

A compensating element 14 is provided between the molded parts 12 and 13, by means of which the length of the core 10 formed from the molded parts 11, 12, 13, 15 and 17 can be adjusted.

FIG. 4 shows a core of the side frame without being fitted with means 5, 9 for connection, here the means 5, 9 for connection can alternatively only be set after the sheath has been joined.

The two molded parts 12 and 13 are shown in detail in FIG. The molded part 12 comprises receptacles 19 formed on its front side by two webs, into which at least one spring or a projection 20 of an adjacent molded part 11, 15 can be inserted. The molded part 13 has on its rear side projections 20 which are inserted into a receptacle 19 of an adjacent molded part 11,

17 can be inserted. The molded parts 12 and 13 have projections 25 on the top, on which the casing 7 and 8 can be mechanically suspended, but which can also be used to guide lines. In the area of the groove 6 openings 26 are provided for screwing the bottom 2 with the molded parts 12 and 13. To change the length of the core 10 in the manufacture of the frame, a compensating element 14 in the form of flexible elements of flexible webs is provided between tween the molded parts 12 and 13, the parts 12 and 13 are integrally formed with the two molds. The webs are arranged in a V-shape so that both legs of the web extend inclined to a longitudinal direction of the side frame 4 and thus the distance between the two molded parts 12 and 13 can be changed by compressing or pulling apart the molded parts 12 and 13. The webs of the compensating element 14 have the same width as the molded parts 12 and 13, so that the casing is also supported in a stable manner in the area of the compensating element 14.

The molded parts 12 and 13 comprise above the groove a support structure 18 made of honeycomb, which has at least 70% of cavities based on the filled volume. A part of the molded parts 12 and 13 is formed from solid material only adjacent to the groove 6. The support structure 18 preferably takes up at least 40% of the volume of the molded parts 12 and 13.

In Figure 6, the means 9 for connecting the side frame 4 to the rear wall 3 is shown, which comprises an angular element with a rear plate which can be screwed to the rear wall 3, other fastening means can be provided. Between the rear fastening means and a holding means 22, which can be fixed to the last molded part 17, there is a compensation element 21 in the form of flexible Elemen te made of flexible webs and a stop element. As a result, the Ab stood the rear wall 3 relative to the envelope 7 and 8 can also be changed.

The position of the compensating element 14 or 21 can be freely selected on the side frame 4. The flexible compensating element can optionally be arranged in the middle between two adjacent molded parts 12 and 13 or at the end, as shown in the case of the holding means 22 designed as a molded part. In addition, a plurality of compensation elements 14 and 21 can also be provided on the core 10 in the longitudinal direction.

In Figure 7, a molded part 11 is shown which has no compensating means. In the longitudinal direction of the side frame 4, the molded part 11 has one side with a receptacle 19 formed from two webs and on the opposite side projections 20, which can once be cornered into the receptacle 19 of an adjacent molded part 11. The geometry of the receptacle 19 and the projections 20 can be chosen according to the strength requirements. Each molded part 11 comprises, above the groove 6 for receiving the edge of the base 2, a support structure 18 provided with flea spaces, in particular a honeycomb structure which consists of at least 70% flea spaces.

To assemble a side frame 4, molded parts 11 are first plugged into one another and then at least one compensating element 14 connected or integrally formed with molded parts 12 and 13 is inserted and, if necessary, further molded parts 11 are connected until the desired length of the core 10 thus formed is obtained. Furthermore, an envelope with the inner wall 7 and the outer wall 8 is provided, and adhesive is optionally applied to the envelope and / or the core 10. The core 10 is adjusted in the longitudinal direction of the side frame by stretching or compressing so that the core 10 has exactly the desired length before the core 10 adjusted in this way is glued to the casing 7 and 8. After the adhesive has set, it is no longer possible to restore the core 10.

In Figure 8, a compensating element 30 is shown in the form of a curved web ge, which is designed in the shape of a loop and flexibly holds the two molded parts 12 and 13 together in a certain range of motion.

A two-part compensating element is shown in FIG. A first part of the compensating element is designed as a web-shaped plug-in part 32 which can be plugged into a receiving part on an adjacent molded part 12. The Aufnah meteil comprises a receptacle between two webs 31, which are hook-shaped and have an inwardly protruding holding web 33 on one end portion, on which the plug-in part 32 is clamped.

In Figure 10, unlike Figure 9, the web-shaped insert 32 is provided with a corrugation 34 on the surface, so that the connection with the halves 33 of the receiving part is latching, that is, in steps.

FIG. 11 shows a compensating element in which the receiving part is designed as in FIGS. 9 and 10, but a widened head section 35 is formed on the insert part 32, which is locked in the receiving part behind the holding webs 33.

In FIG. 12, a receiving part is shown in which an angular section 36 is formed on the two webs 31 of the receiving part and between the two Legs of the angled portion 36, the web-shaped insert part 32 is inserted.

In FIGS. 9 to 12, the two webs 31 of the receiving part are designed to converge. In FIG. 13, the receiving part has two spreading webs 37, on each of which an angular section 36 is formed, the web-shaped insert part 32 being inserted into the receiving part.

FIG. 14 shows a variant of a compensating element with a bar-shaped insert part 32 which is held in a clamping manner on two hook-shaped bars 39. The hook-shaped webs 39 are formed pivotably on an adjacent wall section 38.

The number of compensation elements between two or more molded parts can be varied depending on the installation requirements. In addition, the above exemplary embodiments of the compensation elements can be combined with one another as desired.

List of reference symbols

1 drawer

2 floor

3 back wall

4 side frame

5 means of connection

6 groove

7 inner wall

8 outer wall

9 Means of Connection

10 core

11 molded part

12 molded part

13 molded part

14 compensation element

15 molded part

16 folding element

17 molded part

18 support structure

19 recording

20 head start

21 Compensation element

22 holding means

25 advantage

26 opening

30 compensation element

31 bridge

32 insert

33 folding bridge

34 corrugation

35 head section

36 angle section

37 bridge

38 wall section

39 hook-shaped bar

Claims

Expectations

1. Side frame (4) for a drawer (1), which has on a front side means (5) for connection to a front panel and on a back side means (9) for connection to a rear wall (3), the side frame (4) a one-part or multi-part cover (7, 8) and a plurality of nested molded parts (11, 12, 13, 15, 17) which form a core (10) for the cover (7, 8), characterized that a compensating element (14) is provided between at least two shaped parts (12, 13), and the distance between the two shaped parts (12, 13) in the longitudinal direction of the side frame (4) by stretching or compressing the compensating element (14, 30) is adjustable.

2. Side frame according to claim 1, characterized in that the adjustment path made possible by the compensating element (14, 30) is in a range between - 4 mm to + 4 mm, preferably - 2 mm to +2 mm.

3. Side frame according to claim 1 or 2, characterized in that the compensating element (14, 30) is formed integrally with at least one of the two molded parts (12, 13).

4. Side frame according to claim 3, characterized in that the off equal element (14, 30) is formed integrally with the two molded parts (12, 13).

5. Side frame according to one of the preceding claims, characterized in that the compensating element (14, 30) comprises flexible elements with bendable webs which connect the two molded parts (12, 13) to one another.

6. side frame according to claim 5, characterized in that the bend ble webs V-shaped, U-shaped, arcuate, arched or meanderför mig are formed and parallel or inclined to the longitudinal direction of the Be tenzarge are aligned.

7. Side frame according to one of the preceding claims, characterized in that the compensating element is designed in two parts and part of the compensating element is designed as an insert part (32) which can be inserted into a receiving part on an adjacent molded part.

8. Side frame according to one of the preceding claims, characterized in that a groove (6) for inserting an edge of a bottom (2) of the drawer (1) is formed on the molded parts (11, 12, 13, 15, 17).

9. Side frame according to one of the preceding claims, characterized in that the molded parts (11, 12, 13, 15, 17) at least partially have a hollow support structure (18) formed by honeycombs or cells.

10. Side frame according to one of the preceding claims, characterized in that the casing (7, 8) is glued to the core (10).

11. Drawer with at least one side frame (4) according to one of the preceding claims.

12. Procedure for setting a side frame (4) of a drawer (1), with the following steps:

- Assembling a plurality of molded parts (11, 12, 13, 15, 17) to form an elongated core (10), a compensating element (14) being provided between at least two molded parts (12, 13);

- Application of adhesive between a cover (7, 8) and the core (10)

- changing the length of the core by stretching or compressing the at least one compensating element (14), and

- Setting of the adhesive for gluing the sheath (7, 8) to the length-adjusted core (10).