ES2946887T3 - Side frame for a drawer - Google Patents

Abstract

The invention relates to a side panel (4) for a drawer (1), having means (5) at the front for connection to a front panel and means (9) at the rear for connection to a wall. rear (3), where the side panel (4) has a cover of one or more parts (7, 8) and a plurality of molded parts (11, 12, 13, 15, 17) inserted together, forming a core (10) for lining (7, 8), in which 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 lengthening or compressing the equalizing element (14). The invention further relates to a method for producing a side panel (4). (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Side frame for a drawer

The present invention relates to a side frame for a drawer, which has means for connection to a front panel on a front side and means for connection to a rear wall on a rear side, wherein the side frame has a casing of one or more parts as well as a plurality of molded parts inserted into one another, forming a core for the casing, and to a method for manufacturing a side frame of a drawer.

DE 102017 121 597 A1 discloses a drawer, in which a side frame is formed by a thin-walled casing and a core arranged in the casing. The inner core comprises a plurality of molded parts which are inserted into one another and give the side frame the necessary stability. Molded parts formed from plastic and shell formed from thin sheet steel can vary in length due to tolerances, precisely because the tolerances of the molded parts add up in the longitudinal direction. This can lead to the formation of gaps or increased pressure forces at the ends of the drawer side frame.

In EP 865745 a drawer has been disclosed, in which two profiles that can be connected to each other can be pushed into a hollow side frame in a channel. The profiles have locking elements at the ends for fixing.

Therefore, the aim of the present invention is to create a side frame for a drawer that can be manufactured exactly to the desired length in the longitudinal direction. Furthermore, an effective method for manufacturing a side frame of a drawer must be provided.

This objective is solved with a side frame with the characteristics of claim 1 and a method for manufacturing a side frame of a drawer with the characteristics of claim 11.

In the side frame according to the invention, the core comprises at least two moldings between which a compensating element is provided, wherein the distance between the two moldings in the longitudinal direction of the side frame can be adjusted by stretching or compressing the compensation item. As a result, tolerances in the manufacture of the molded parts can be compensated to manufacture the core in exactly the desired length in relation to the shell. Especially when using different materials, such as thin sheet steel and plastic moldings, a more precise positioning of the moldings at the ends of the side frame can therefore be ensured. In this case, the compensating element allows adjustment in the longitudinal direction of the side frame, but can, however, be dimensionally stable perpendicular to this in the width direction of the side frame in order to support the casing also in the region of the compensating element. compensation.

The adjustment range made possible by the compensating element is preferably in a range between -4 mm and 4 mm, in particular between -2 mm and 2 mm. In the case of longer cores with more than 3 molded parts, several compensating elements can optionally also be provided in a side frame.

The compensating element is preferably configured 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. In this regard, the flexible element can comprise flexible cores that connect the two molded parts together. Flexible webs may be configured in a V-shape, U-shape, arched, curved, or meandering to allow for adjustability in longitudinal span. Alternatively or additionally, the flexible webs can be designed to be inclined with respect to the longitudinal direction in order to be able to adjust the two molded parts relative to each other in the longitudinal direction. In this case, the webs of the compensating element can have the same width as the molded parts, so that the casing is also supported in this region.

Alternatively or additionally, the compensation element can be configured in two parts. The compensating element can contain retaining or clamping elements that allow for a shortening or lengthening between two moldings in a predetermined area in steps or continuously through a form-fitting and/or force-fitting connection and thus allow a fit of the two molded parts with respect to one another. In this sense, in a two-part or multi-part structure, one side of the molded part can be movably clamped to another side of the molded part by clamping forces or retaining means, one or both sides providing holding elements. retention or restraint that interact with suitable structures on the other side. For example, a part of the compensating element can be designed as an insert, in particular as a web, since it can be inserted into a receiving part in an adjacent molded part. The receptacle part can form a receptacle between two webs and fix the insert part by clamping or holding.

With the use of flexible elements or clamping elements in the compensating element, it is also possible to additionally use a stop that limits excessive stretching or compression of the flexible element or prevents the clamping elements from coming loose when separated.

In this case, this stop can be configured both integrally, preferably as a projection, on the flexible element or clamping element, or as a separate element on the compensating element.

A groove for inserting an edge of a drawer base may be configured in the core moldings of the side frame in order to be able to stably connect the side frame with a base.

For low material usage, the molded parts may consist at least partially of a hollow support structure made up of honeycombs or cells. This allows high stability with little use of material.

According to the invention, the casing is attached to the core, whereby the casing is made of one or more thin-walled elements, in particular of a bent sheet metal.

The side frame formed in this way can be used in particular in a drawer integrated into furniture or household appliances.

In the method according to the invention, first of all a plurality of molded parts are assembled to form an elongated core, whereby the individual molded parts can have corresponding edge contours in the longitudinal direction, for example with grooves and tongue or other geometries. In this connection, a compensating element is provided at least between two molded parts or within a molded part. In a further step adhesive is applied between a wrapper and the core, optionally only on the wrapper or only on the core or both. Furthermore, the length of the core is changed by stretching or compressing the at least one compensating element. The steps mentioned above can be carried out in any order. Finally, the adhesive hardens to adhere the wrapper to the length-adjusted core. The invention is explained in more detail below by means of an exemplary embodiment with reference to the accompanying drawings. Show:

Figure 1 a perspective view of a drawer with a side frame according to the invention;

figure 2 a perspective view of the side frame of the drawer of figure 1;

Figure 3 is a view of the core of the side frame of Figure 2 without casing;

4 a view of the core without the end-side elements for connecting to a front panel and a rear wall;

5 is a detailed view of two molded parts, between which a compensating element is provided;

6 is a perspective view of another exemplary embodiment with a compensating element; figure 7, a perspective view of a molded part of the core, and

Figures 8 to 14, detailed views of modified configurations of compensating elements.

A drawer 1 comprises a base 2, a rear wall 3, which connects two side frames 4 to each other, and a front panel, not shown. The front panel is attached to the two side frames 4 to means 5 for connection to the front panel, which are configured as dowels in the illustrated exemplary embodiment.

In figure 2 a side frame 4 is shown in detail without the other components, where means 5 for connection to a front panel are provided on a front side and four dowels are shown instead of the two dowels. The side frame 4 comprises a visible outer shell with an inner wall 7 and an outer wall 8 surrounding a core. The casing can be made of one or more thin-walled elements, in particular a bent sheet metal. Under the inner wall 7 a groove 6 is configured for inserting an edge of the base 2 of the drawer.

In FIG. 3, a core 10 of the side frame 4 is shown, which is attached to the casing (not shown). The core 10 comprises a plurality of moldings 11, 12, 13, 15 and 17 which are snap-connected to an adjacent molding at at least one edge. The moldings 11, 12, 13, 15 and 17 are essentially plate-shaped, whereby the number of moldings can be varied to change the length of the core 10. In the molding 15 on the end side, which is Arranged on a front side, fastening elements 16 are provided, on which means 5 for connection to a front panel are arranged. Clamping elements 16 are adjustablely attached to the molded part 15 in order to be able to adjust the front panel laterally and/or vertically relative to the side frame 4.

On the last molded part 17 viewed in the longitudinal direction, means 9 for connection to a rear wall 3 are provided, which comprise an angled clamping means to which the rear wall 3 can be attached via fixing 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.

Between the shaped parts 12 and 13, a compensating element 14 is provided, by means of which the length of the core 10 formed by the shaped parts 11, 12, 13, 15 and 17 can be adjusted.

Figure 4 shows a core of the side frame without being equipped with means 5, 9 for connection, in this case the means 5, 9 can alternatively be brought into contact only after joining the casing.

The two molded parts 12 and 13 are shown in detail in figure 5. The molded part 12 comprises on its front side receptacles 19 formed by two webs, into which at least one spring or a projection 20 of a molded part can be inserted. 11, 15. The molded part 13 has projections 20 on its rear side, which can be inserted into a receptacle 19 of an adjacent molded part 11, 17. The molded parts 12 and 13 have projections 25 on the upper side, on which the casing 7 and 8 can be hung mechanically, which can, however, additionally still be used for guiding lines. In the region of the groove 6, openings 26 are provided for screwing the base 2 to the molded parts 12 and 13.

In order to change the length of the core 10 during the manufacture of the frame, a compensating element 14 is provided between the moldings 12 and 13 in the form of flexible elements made of flexible cores, which are integrally configured with the two moldings 12 and 13. In this case, the webs are arranged in a V-shape, so that both sides of the web run inclined to a longitudinal direction of the side frame 4 and thus the distance between the two moldings 12 and 13 can be changed. by compressing or stretching the shaped parts 12 and 13. The webs of the compensating element 14 have the same width as the shaped parts 12 and 13, so that the casing also rests stably in the area of the compensating element 14.

Above the groove, the molded parts 12 and 13 comprise a support structure 18 made up of honeycombs, which has at least 70% cavities in relation to the filled volume. Only next to the groove 6 is a part of the molded parts 12 and 13 made of solid material. The support structure 18 preferably occupies at least 40% of the volume of the molded parts 12 and 13.

In figure 6 the means 9 for the connection of the side frame 4 to the rear wall 3 is shown, which comprises a corner element with a plate on the rear side, which can be screwed to the rear wall 3, where other further elements can also be provided. fixing means. A compensating element 21 in the form of flexible elements made of flexible webs and a stop element is located between the fixing means on the rear side and a clamping means 22, which can be fixed to the last molded part 17. As a result , the distance between the rear wall 3 and the casing 7 and 8 can also be changed.

The position of the compensating element 14 or 21 can be freely selected in 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 ends, as this is shown in the figure. case of the holding means 22 configured as a molded part. In addition, several compensating elements 14 and 21 can also be provided in the core 10 in the longitudinal direction.

In figure 7 a molded part 11 is shown which does not have any compensation means. In the longitudinal direction of the side frame 4, the molded part 11 has one side with a receptacle 19 formed by two webs and on the opposite side projections 20 that can be inserted into the receptacle 19 of an adjacent molded part 11. The geometry of the housing 19 and of the projections 20 can be selected corresponding to the strength requirements. Above the groove 6 for accommodating the edge of the base 2, each molded part 11 comprises a support structure 18 provided with cavities, in particular a honeycomb structure, which is made up of at least 70% of cavities.

For the assembly of a side frame 4, the molded parts 11 are first inserted into each other and then at least one compensating element 14 connected or configured integrally with the molded parts 12 and 13 is inserted and, if necessary, other parts are connected molded 11 until the desired length of the core 10 thus formed is obtained. In addition, a shell is provided with the inner wall 7 and the outer wall 8 and adhesive is optionally applied to the shell and/or core 10. The core 10 is fitted by stretching or compressing in the longitudinal direction of the side frame, so that the core 10 has exactly the desired length before the thus adjusted core 10 adheres to the casing 7 and 8. Once the adhesive has set, a repositioning of the core 10 in this way is no longer possible.

In FIG. 8, a compensating element 30 in the form of a curved web is shown, which is loop-shaped and flexibly holds the two molded parts 12 and 13 together over a certain range of movement.

In figure 9 a compensation element of two parts is shown. A first part of the compensating element is designed as a web-shaped insert 32, which can be inserted into a receiving part of an adjacent molded part 12. The receptacle part comprises a receptacle between two webs 31, which are configured in the form of a hook and have a holding web 33 projecting inward at an end section, in which the insert 32 is clamped.

In FIG. 10, in contrast to FIG. 9, the web-shaped insert 32 is provided with a corrugation 34 on the surface, so that the connection to the clamping webs 33 of the receiving part is made by retention, that is, in stages.

11 shows a compensating element in which the mounting part is configured as in FIGS. 9 and 10, however a widened head section 35 is configured in the insert 32, which is engaged in the mounting behind the subjection souls 33.

In FIG. 12, a receiving part is shown, in which an angle section 36 is formed in the two webs 31 of the receiving part and between the two sides of the angle section 36 the insert 32 in the form of a soul.

In FIGS. 9 to 12, the two webs 31 of the receiving part are converging. In FIG. 13, the receiving part has two extension webs 37, in each of which an angular section 36 is formed, in which the web-shaped insert 32 has been inserted into the receiving part.

In FIG. 14 a variant of a compensating element with a web-shaped insert 32 is shown, which is clamped onto two hook-shaped webs 39. The hook-shaped webs 39 are formed in a section of adjacent wall 38 so that they can pivot.

The number of compensation elements between two or more molded parts can vary depending on the installation requirements.

References list

1 drawer

2 basis

3 rear wall

4 side frame

5 means of connection

6 slot

7 inner wall

8 outer wall

9 means of connection

10 core

11 piece molding

12 piece molding

13 piece molding

14 compensation element

15 piece molding

16 clamping element

17 piece molding

18 support structure

19 accommodation

20 outgoing

21 compensation element

22 clamping device

25 outgoing

26 aperture

30 compensation element

31 soul

32 insert

33 clamping soul

34 ripple

35 head section

36 angle section

37 soul

38 wall section

39 hooked web

Claims (11)

1. Side frame (4) for a drawer (1), presenting means (5) for connection to a front panel on a front side and means (9) for connection to a rear wall (3) on a rear side , wherein the side frame (4) has a casing (7, 8) of one or more parts as well as a plurality of molded parts (11, 12, 13, 15, 17) inserted one into another, forming a core ( 10) for the casing (7, 8), wherein a compensating element (14) is provided between at least two molded parts (12, 13), and the distance between the two molded parts (12, 13) can be adjusted in the longitudinal direction of the side frame (4) by stretching or compressing the compensating element (14, 30), characterized in that the casing (7, 8) is adhered to the core (10). Side frame according to claim 1, characterized in that the adjustment path allowed by the compensating element (14, 30) lies in a range between -4 mm and 4 mm, preferably between -2 mm and 2 mm. Side frame according to claim 1 or 2, characterized in that the compensating element (14, 30) is configured integrally with at least one of the two molded parts (12, 13). Side frame according to claim 3, characterized in that the compensating element (14, 30) is formed integrally with both molded parts (12, 13). Side frame according to one of the preceding claims, characterized in that the compensating element (14, 30) comprises flexible elements with flexible cores, which connect the two shaped parts (12, 13) to one another. Side frame according to claim 5, characterized in that the flexible webs are V-shaped, U-shaped, arched, curved or meandering and are aligned parallel or inclined to the longitudinal direction of the frame side. Side frame according to one of the preceding claims, characterized in that the compensating element is configured in two parts and one part of the compensating element is configured as an insert (32), which can be inserted into a receiving part in one adjacent molded part. Side frame according to one of the preceding claims, characterized in that a groove (6) is formed in the molded parts (11, 12, 13, 15, 17) for inserting an edge of a base (2) of the drawer (1 ). Side frame according to one of the preceding claims, characterized in that the shaped parts (11, 12, 13, 15, 17) have at least partly a hollow support structure (18) made of honeycombs or cells. Drawer with at least one side frame (4) according to one of the preceding claims. 11. Procedure for manufacturing a side frame (4) of a drawer (1), with the following stages: - assembling a plurality of molded parts (11, 12, 13, 15, 17) to form an elongated core (10), wherein a compensating element (14) is provided between at least two molded parts (12, 13); - apply adhesive between a shell (7, 8) and the core (10) - changing the length of the core by stretching or compressing the at least one compensating element (14) and - hardening the adhesive to adhesively bond the casing (7, 8) to the length-adjusted core (10).