WO1999052402A1

WO1999052402A1 - Front element for an item of furniture

Info

Publication number: WO1999052402A1
Application number: PCT/EP1999/002314
Authority: WO
Inventors: Horst Jung
Original assignee: Horst Jung
Priority date: 1998-04-09
Filing date: 1999-04-06
Publication date: 1999-10-21
Also published as: ATE220869T1; SK285508B6; SK14942000A3; EP1069849B1; ES2181425T3; PT1069849E; EP1069849A1; CZ20003661A3; DE19816005A1; DE59902122D1; DK1069849T3; CZ299475B6

Abstract

The invention relates to a front element for an item of furniture, especially a door, comprising a frame with contiguous limbs (12, 18) in a mitre joint. In order to fit one such front element with panes (38, 44) of a desired type of design, whereby the limbs receiving said panes can be joined without any problem, the invention provides that said limbs are joined by means of at least two wooden elements (106, 108) which are permanently fixed in one frame limb and detachably fixed in the other.

Description

description

Furniture front element

The invention relates to a furniture front element, in particular a door, comprising a frame with frame legs abutting in a real miter.

EP 0 079 873 AI discloses a furniture front element with an outer frame, an insertable and exchangeable inner frame and an insert which can be used and replaced in this. The legs of the outer and inner frames butt each other. The inner frame is so loosely arranged in the outer frame that the individual frame legs can be removed independently of one another when the outer frame is closed. For this purpose, one leg of the outer frame must have a continuous slot.

From EP 0 148 041 AI a door is known with cross legs extending between two vertically extending legs, which are connected in the butt joint.

A furniture front element for kitchen and cupboard furniture in particular can be found in FR-A 24 94 573, in which worn or unmodern front doors have to be replaced with new ones. To renovate the furniture, only the visible front parts are replaced.

PCT / EP 88/00138 (DE 38 05 944 AI) is a furniture front element at the beginning 2 mentioned type known, in which the frame legs are releasably connected to one another by means of tensioning fittings. Due to the construction of the connecting elements, the legs of the frame must have minimum dimensions.

In order to replace the fillings of furniture front elements, 5 frame legs are detachably connected to one another via pin connections, tongue and groove systems or plug-in or screw closures according to CH 658 777 A.

A door leaf is described in DE 87 07 276 U1, the one longitudinal frame leg of which is connected to butt abutting cross legs by means of eccentric connecting fittings.

A corner connection between butt abutting frame parts of a bed frame is made according to DE 296 04 176 Ul via obliquely drilled wooden pins.

EP 0 810 377 AI provides a screw connection for connecting two profiles.

According to FR 2 466 219, miter-jointed frame legs are connected via screw elements whose heads are accessible from the side edge of the legs.

The present invention is based on the problem of further developing a furniture front element, in particular intended as a door for a kitchen or cupboard furniture, in such a way that fillings of the desired design can be exchanged without problems, the frame legs accommodating them being easily connectable. At the same time, it should be ensured that when the frame legs are connected there is no twisting to one another, which could increase the risk of frame leg material such as wood breaking out. The dimensioning of the frame legs should also be possible with almost no restrictions. 3

According to the invention, the problem is solved by a furniture front element, in particular a door, comprising a frame with real mitred butted frame legs consisting of sections of profiled strips which are available by the meter and have a groove running in the longitudinal direction, at least one groove which can be exchanged into the groove forming a circumferential inner groove of the frame insertable filling or an inner frame receiving the filling, with two miter holes running parallel to each other from each miter area, which merge flush into corresponding holes in a frame leg adjoining the respective miter area of a frame leg, with a first and. in the mutually flush holes of the abutting frame legs extend a second wooden element, of which one wooden element is permanently or substantially permanently fixed in the bore of a frame leg and the other in the other bore Wooden element is releasably fixable by means of a connecting element, which starts from the rear region of the frame leg and can be covered on the outside. One cylindrical wooden element is preferably a wooden dowel and the other cylindrical element is a wooden round rod. In particular, it is provided that the permanently or essentially permanently fixed section of the respective wooden element is glued in the corresponding bore.

In an embodiment, the invention provides that the wooden elements running parallel to one another are fixed in the bores in such a way that one wooden element is glued in the bore of one of the frame legs and the other wooden element in the bore of the other frame leg. This measure enables simple assembly of the frame legs and subsequent connection by means of the screw elements, preferably, without the connecting elements having to push through the frame legs on the back in a confined space. This has the advantage that the wooden elements such as wooden dowels or wooden round bars can run closely adjacent to one another. The frame legs can thus be of small dimensions without there being disadvantages with regard to the replacement of fillings or inner frames. 4

The connecting element is preferably a screw with a countersunk head, such as a cross-head, from which an axial bore for receiving a cover cap starts. Corresponding screws are also known as Spax screws.

The wooden dowel itself preferably has a length that is approximately 1/3 - 2/3, preferably 1/2 that of the wooden round bar.

The wooden dowel should run on the outside of the frame edge and the round wooden rod on the inside of the frame edge. With the intended length extensions, there is therefore sufficient space for the wooden dowels.

Furthermore, it is provided that the mutually merging bores with respect to their longitudinal axes preferably run in planes running parallel to one another, that is to say offset with respect to one another, as a result of which rotation is additionally provided.

The wooden round bars in the longitudinal frame leg and the wooden dowels in the transverse frame leg are preferably screwed to them. Furthermore, the bores should run parallel to the transverse frame legs, so that the frame legs can be easily installed or loosened.

Detached from the type of connection of the frame legs to one another, it is provided that either the visible inner or outer surface of the legs of the filling and or of the inner frame receiving them forms part of the outer front of the furniture front element. The visible inner and outer surface of the inner frame can be profiled differently and / or coated differently. Furthermore, it is provided that at least the profile material of the outer frame is encased in a plastic film, the plastic film overlapping in the area of the groove base.

A method for producing a furniture front element with a frame and with an exchangeable filling preferably comprises the method steps 5

Manufacture of first and second frame legs as longitudinal and cross legs by cutting profile strips in a real miter cut,

Introducing first and second bores running parallel to the longitudinal axis of each frame leg at predetermined standardized distances from a reference surface of the frame leg,

Introducing and gluing a first cylindrical wooden element into a first bore of each miter surface of a frame leg provided as a longitudinal frame leg, the first wooden element projecting above the miter surface,

Introducing and gluing a second cylindrical wooden element into the second bore of a frame leg provided as a frame cross leg,

Connecting two frame transverse legs to a longitudinal frame leg by introducing respective projecting sections of the first and second wooden elements into the corresponding free second and first bores of the adjoining leg,

Screwing the unglued sections of the wooden elements from the back of the frame legs,

Introducing the filling or the filling received by an inner frame into the groove of the frame legs assembled into a U-shape,

Connecting the further longitudinal frame leg to the transverse legs by introducing respective projecting sections of the first and second wooden elements into the corresponding free first and second bores of the adjacent frame legs and 6

Screw the unglued sections of the wooden elements from the back of the frame legs.

Further details, advantages and features of the invention result not only from the claims, the features to be extracted from them - by themselves and / or in combination - but also from the following description of preferred exemplary embodiments which can be found in the drawing.

Show it:

Fis. 1 shows a back of a first embodiment of a composite

Furniture front element,

2 shows the furniture front element according to FIG. 1 with the longitudinal frame leg to be removed,

3 shows the furniture front element according to FIG. 1 with the filling to be removed,

Fig. 4 is a back of a second embodiment of a composite

Furniture front element,

5 shows the furniture front element according to FIG. 4 with the longitudinal frame leg to be removed,

6 shows the furniture front element according to FIG. 4 with the filling to be removed,

7 shows the furniture front element according to FIG. 4 with the inner frame to be removed,

8 is a sectional view taken along the line VIII-VIII in Fig. 4, 7

9 is a detailed view of the leg of an inner frame inserted in a leg of an outer frame,

10 is a detailed representation of a leg of an outer frame in section,

11 is a sectional view of a further embodiment of a leg of an outer frame,

12 shows a further embodiment of a frame receiving a filling,

13 is an enlarged detail view of frame legs,

14 shows a section along the line XIV-XIV in FIG. 13,

15 shows a variant of the representation of FIGS. 14 and

16 shows a basic illustration for the production of frame legs of furniture front elements corresponding in particular to FIGS. 1 and 4.

1-3 shows a first embodiment of a composite furniture front element 10, which is assembled in FIG. 1 and, according to FIGS. 2 and 3, can be disassembled by simple manipulations in order to change the exterior thereof. The furniture front element 10 consists essentially of the frame transverse legs 12, 14 and the longitudinal frame legs 16, 18, in which a filling 20 is detachably arranged. The legs 12, 14, 16, 18 are detachably connected via cylindrical wooden elements in the form of wooden dowels 22, 24 and wooden round bars 26, 28. In this regard, however, reference is made in particular to the explanation in connection with FIGS. 13-15, through which the essential features of the invention become apparent. 8th

Various assembly states of the furniture front element 10 according to the invention are illustrated with the aid of FIGS. 1-3, in order to clarify that the exterior of the furniture front element 10 can be changed with a few easy to carry out operations. If the furniture front element 10 shown from the rear is assembled in FIG. 1 and can be connected to the body of a cupboard, for example, by means of pot hinges 30, 32, the outer longitudinal frame leg 22 of the transverse frame legs 12 is already shown in the illustration in FIG. 14 solved in order to pull out the replaceable and reversible filling 20 (FIG. 3) and to turn it or to replace it with another filling.

4-7, a furniture front element 34 is shown, in which, according to the representation of FIGS. 1-3, the same reference numerals are used for the same elements. In other words, the furniture front element 34 is composed of transverse frame legs 12, 14 and longitudinal frame legs 16, 18, which are detachably connected to one another via wooden dowels 22, 24 and wooden round bars 26, 28. The inner longitudinal frame leg 16 likewise has pot hinges 30, 32 or correspondingly suitable connecting elements in order to connect the door 34 to a furniture body.

In a departure from the exemplary embodiment in FIGS. 1-3, the filling 20 is, however, not introduced directly into the outer frame formed by the legs 12, 14, 16, 18, but only indirectly, namely via an inner frame 36, which is composed of inner frame legs 38. 40, 42, 44 composed.

Various assembly states of the furniture front element 34 are shown in FIGS. 4-7 in order to also clarify that the furniture front element 34 can be designed differently in a few simple steps. 4, the furniture front element 34 is shown assembled from the rear. 5, the longitudinal frame leg 18 with the inner longitudinal leg 44 detachably arranged in it is detached from the transverse frame legs 12, 14 and removed in order to turn the filling 20 or to replace it with another one. 9

In order to additionally replace or turn the inner frame 36, it is only necessary for the legs 38, 40, 42, 44 to be removed from the grooves of the outer frame which form a circumferential groove, as shown in principle with reference to FIG. 7 becomes.

FIG. 8 shows a sectional illustration along the line VIII-VIII in FIG. 4 in an enlarged illustration in order to show more details of the outer frame formed by the legs 12, 14, 16, 18 and of the legs 38, 40 which can be releasably inserted therein , 42, 44 to describe the inner frame 36 formed. Each leg 12, 14, 16, 18 and thus the legs 16, 18 in FIG. 8 represents a section of profiled strips available by the meter, which have a groove 46, 48 in their longitudinal direction. The legs 12, 14, 16, 18 are assigned to one another with respect to the groove 46, 48 in such a way that a circumferential inner groove is formed, into which the filling 20 in the exemplary embodiment of FIGS. 1-3 and in the exemplary embodiment of FIGS. 4-7 the legs 38, 40, 42, 44 of the inner frame 36 can be inserted interchangeably. For this purpose, the inner legs - in FIG. 8 the legs 40, 44 - each have a section 50, 52 adapted to the groove 46, 48 in such a way that the legs 40, 46 can preferably be inserted into the grooves 46, 48 in a snug fit .

The inner legs 38, 40, 46, 48 are also cut from profiled strips available by the meter and likewise have grooves 54, 56 forming a circumferential inner groove. in which the filling 20 is replaceable. In the exemplary embodiment in FIG. 8, the filling 20 consists of a total of three plates 58, 60, 62.

From FIG. 8 it can also be seen that the grooves 46, 48 of the outer frame run in a different plane than the grooves 54, 56 of the inner frame 36, which results in a cassette effect and the associated depth effect of the front element 34. 10

Details, in particular with regard to the design of the inner legs 38, 40, 42, 44 of the inner frame 36 which can be releasably inserted into the outer frame, can be found in FIG. 9.

Since the legs 12, 14, 16, 18 have the same profile, characteristic properties of the furniture front element or of the inner frame 36 to be inserted into the outer frame are explained using the longitudinal frame leg 18.

The section 52 of the inner leg 44 is introduced into the groove 46, the region facing the bottom surface 64 of the groove 46 being designed as a groove 66. This has the advantage that unevenness in the bottom region 64 does not lead to a tilting of the inner leg 44.

Furthermore, the leg 44 is designed as a so-called turning leg, i.e. both the outer surface 68 and the inner surface 70 (shown in dashed lines) can optionally be used as the visible outer surface of the furniture front element 34, each surface 68, 70 having a different color and / or profile.

In order to achieve a different design, it is therefore only necessary for the inner leg 44 to be removed from the groove 46 and rotated through 180 °. The leg 44 can have two grooves 72, 74 running parallel to one another and spaced from one another, into which the filling 20 can be introduced, specifically into the groove running in each case on the outside of the furniture front surface, that is to say in the groove 72 in the exemplary embodiment.

The fillet formation 66 of the leg 44 is particularly advantageous when there are 18 unevenness in the bottom region 64 of the leg. As can be seen in FIG. 10, these can be formed in that the leg 18, which is made, for example, of MDF material, is encased in a plastic film 76, the overlapping of the ends running in the bottom region 64. The overlapped area is provided with the reference symbol 78. Now bring the trained according to Fig. 9 11

Inner leg 46 into the groove 46, the overlap area 78 cannot lead to an inaccuracy because it runs in the area of the groove 66.

FIG. 11 shows a special embodiment of an outer frame leg 80 which is completely encased in a plastic film. So that the interior of the groove 82 intended for an inner leg (not shown) can also be completely lined, the groove depths in the region of the side walls 84, 86 differ from one another, so that the coating material provided with an adhesive does not have the opposite boundary walls when it is introduced into the groove 82 84, 86 can come into contact. A corresponding design of the outer leg 80 results in structurally simple changes, the possibility of completely encasing the material with a film, without the filling, not shown, being less guided from the front of the furniture front element. This ensures the height of the side wall 86. If one should forego the different groove depths while at the same time completely encasing the leg 80, the groove depth to the width of the groove base would have to be selected so that it is twice as large as that.

FIG. 12 shows a further embodiment of a furniture front element in which the filling 20 is received directly by the outer frame, that is to say by the legs 12, 14, 16, 18. In the exemplary embodiment in FIG. 12, the filling is composed of three elements 88, 90, 92, the elements 80, 92 being plate-shaped and the element 90 having an outwardly projecting section in order to achieve a cassette effect.

With reference to FIGS. 13-15, which illustrate the teaching according to the invention, it is to be illustrated in principle how the frame legs - in the exemplary embodiment the legs 12 and 18 - are connected to one another, at the same time being releasable to the frame transverse legs, at least in relation to the outer longitudinal legs 18 12, 14 must be given. Is an inner of the outer frame in FIG. 12 frames, that is to say the inner frame legs 38, 44, the teaching according to the invention naturally also applies to furniture front elements in which a filling is received directly by an outer frame.

In order to connect the frame legs 12, 18, each miter surface 94, 96 has bores 98, 100 and 102, 104 which run parallel to one another and which merge into one another when the legs 12, 18 are assembled. Cavities which run parallel to one another are consequently formed and are composed of the bores 98, 102 or 100 and 104. Cylindrical wooden elements in the form of wooden dowels 106 or wooden round bars 108 are introduced into the bores 98, 100, 102, 104, which ensure the desired twist-proof connection between the frame legs 12, 18, at the same time being releasable. For this purpose, a section of each wooden element 106, 108 is glued in one of the holes, whereas the section of the wooden element 106, 108 protruding beyond the respective miter surface 94, 96 is screwed to the other hole from the rear of the legs 12, 18. In the exemplary embodiment, the wooden dowel 106 is glued in the bore 102, whereas the section extending in the bore 98 is screwed to the leg 12. Conversely, the wooden round rod 108 is glued in the bore 100 of the longitudinal cross leg 12, whereas the section running in the bore 104 is screwed to the longitudinal cross leg 18.

Furthermore, it is clear from FIG. 13 that the wooden dowel 106 has a shorter extension than the wooden round bar 108. In this case, the shorter wooden dowel 106 is arranged to run on the outer edge side with respect to the cross leg 12, whereas the wooden round rod 108 is offset from the inner edge of the leg 12.

The bores 98, 100, 102, 104 can be arranged with respect to their longitudinal axes in a plane that runs parallel to the front surface of the furniture front element, as is illustrated in FIG. 14. Alternatively, there is the possibility of arranging the bores 98, 102 offset to the bores 100, 104, as in principle 13 conveys FIG. 15.

Since one of the cylindrical wooden elements 106, 108 protrudes from each miter surface 94, 96 before assembling the leg 12, 18, a simple assembly of the legs 12, 18 is possible, with the wooden elements 106, 108 then also from the rear sides of the legs 12, 18 these are screwed. For this purpose, Spax screws 105 are preferably used, which can be covered on the outside with a cap 107.

16 is intended to indicate, purely schematically, how the legs of the inner and outer frame are produced in a true miter cut. First of all, a profile strip 106 forming the outer legs is stapled together with a profile strip 108 forming the inner legs in an area 110 which cannot later be used as waste. This stitching can be done, for example, by stapling, shooting or the like. This ensures that the profile strips 106 and 108 cannot be moved against one another when cutting by means of a saw blade 112. After a miter cut has been made with the saw blade 112, the cut surface 114 is fixed to a stop 116, by means of which the length of a leg to be cut, not specified, is fixed. Since the saw blade 1 12 has an unambiguous assignment to the stop 116 and also the first cut 114 has an unambiguous assignment to the saw blade 110 in order to achieve a real miter cut, it is always ensured that the leg cut according to the basic illustration according to FIG. 16 has the desired length have, whereby the stitching of the profile strips 106 and 108 ensures that when assembling the inner and outer legs there is an accuracy which guarantees a precisely fitting miter joint in an assembled furniture front element. Since several legs are normally cut off from the profiled strips provided in the meter goods, and one end section is always incurred as waste, stitching together in this area is possible without any disadvantages when the legs are cut to size.

Claims

14 Patent claims Furniture front element

1. Furniture front element (10, 34), in particular door, comprising a frame with frame mitts (12, 14, 16, 18) abutting in a real miter, consisting of sections of profile strips (106, 108), at least one filling (20) which can be exchangeably introduced into the grooves forming a circumferential inner groove of the frame or one inner frame (36) receiving the filling, two bores (98, 100, 102) running parallel to each other from each miter surface (94, 96) , 104), which run flush into corresponding bores of the miter surface of an adjacent frame leg, and wherein cylindrical wooden elements (106, 108) extend in the bores of the abutting frame legs, each wood element remaining or essentially in the bore of a frame leg is permanently fixed, and in alignment in the hole g passing bore of the other frame leg is releasably fixable by means of a connecting element which starts from the rear region of the frame leg and can be covered on the outside.

2. Furniture front element according to claim 1, characterized in that the cylindrical wooden element is a wooden dowel (106). 15

3. Furniture front element according to claim 1 or 2, characterized in that the cylindrical wooden element is a wooden round rod (108).

4. Furniture front element according to one of the preceding claims, characterized in that the permanently or substantially permanently fixed section of the wooden element (106, 108) in the bore (100, 102) is glued.

5. Furniture front element according to one of the preceding claims, characterized in that the parallel to each other cylindrical wooden elements (106, 108) are fixed in the bores (98, 100, 102, 104) such that a wooden element in the bore of a frame leg and the other wooden element is glued in the hole in the other frame leg.

6. Furniture front element according to one of the preceding claims, characterized in that the connecting element is a screw (105) with a countersunk head in the form of a cross-head with a receptacle for a cover cap (107).

7. Furniture front element according to one of the preceding claims, characterized in that the wooden dowel (106) has a length that is approximately 1/3 - 2/3, preferably 1/2 that of the wooden round bar (108).

8. Furniture front element according to one of the preceding claims, characterized in that the wooden dowel (106) frame edge outside and the wooden round piece (108) run inside the frame edge. 16

9. Furniture front element according to one of the preceding claims, characterized in that the merging bores (98, 102, 100, 104) run with respect to their longitudinal axes in a plane or in mutually parallel planes which are parallel to the plane spanned by the furniture front element runs or run.

10. Furniture front element according to one of the preceding claims, characterized in that the wooden round piece (108) in a longitudinal frame leg (18) and the wooden dowel (104) is screwed into a transverse frame leg (12).

11. Furniture front element according to one of the preceding claims, characterized in that the bores (98, 100, 102, 104) run parallel to the transverse frame leg (12).

12. A method for producing a furniture front element comprising the process steps

Introducing and gluing a first cylindrical wooden element into a first bore of each miter surface of a frame leg provided as the longitudinal frame leg, the first wooden element above the 17 miter surface protrudes,

Connecting the further longitudinal frame leg to the transverse legs by introducing respective projecting sections of the first and second wooden elements into the corresponding free first and second bores of the adjoining frame legs and

13. The method according to claim 12, so that the merging first bores to the second bores are made in planes that run parallel to one another and run parallel to the plane spanned by the furniture front element.