CZ299475B6 - Furniture front element and process for producing thereof - Google Patents

Abstract

The present 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 holes (98, 100, 102, 104) of the frame contiguous limbs (12, 18) limbs, there are arranged cylindrical wooden elements such as wooden dowels (106) and wooden pegs (108), each being permanently or substantially permanently fixed in the hole (98, 100, 102, 104) of one frame limb (12, 18) and each being coverable by means of a connecting element that projects from the frame limb (12, 18) rear region, and each being removable fastened in the hole (98, 100, 102, 104) of the other limb (12, 18). In order to achieve a coupling attachment of the corresponding wooden element, the wooden element is glued in the corresponding hole (98, 100, 102, 104). After beveling the frame limbs and insertion and gluing of the wooden connecting elements into the corresponding holes (98, 100, 102, 104), the two frame contiguous limbs (12, 14) are joined with a frame longitudinal limb (16) using the wooden elements and holes (98, 100, 102, 104) of the adjoining limb (12, 14, 16, 18). Subsequently, the unglued parts of the wooden elements are screwed from the frame limb rear side, a filler or a filler inserted in an inner frame is inserted into a U-shaped groove of the assembled contiguous limbs and the longitudinal limb, and assembly of the entire front element of a furniture is then completed in a similar way.

Description

Front furniture part and method of its production

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a front furniture component, in particular a furniture door, comprising a frame with bevelled arms connected to one another, and to a method for manufacturing the front furniture component.

BACKGROUND OF THE INVENTION

EP 0 079 873 A1 discloses a front furniture piece in which a removable inner frame with a replaceable panel is inserted. The arms of the outer and inner frames are butted together. The inner frame is removably attached to the outer frame in such a way that its individual arms are removable independently of each other from the closed outer frame. To this end, a through groove must be formed in one arm of the outer frame.

EP 148 041 A1 discloses a door with two vertical arms, butt-connected, by a transverse arm.

A front piece of furniture, in particular for kitchen furniture and cabinets, is also known from French patent document FRA2494 573, in which worn or outdated front doors are replaceable for new ones. During the renovation of the furniture, only the visible front parts are restored.

From PCT / EP 88/00138 (German patent DE 3 805 944 A1), a front furniture part is known of the initially mentioned type, in which the frame arms are detachably connected to each other by means of furniture connection parts. Due to the construction of the fasteners, the individual frame arms must have minimum dimensions.

Due to the possibility of replacing the panels of the front furniture parts, according to Swiss Patent Specification CH 658 777 A5, the frame arms are detachably connected to each other by means of pin joints, groove and tongue systems, or by means of dowel joints.

DE 8 707 276 U1 discloses a door leaf whose one longitudinal arm of the frame is butt-connected to the transverse arm by means of an eccentric connecting piece.

The corner connection between the butt-joined parts of the frame of the bed frame is made according to German patent DE 2 9 604 176 U1 by means of obliquely drilled wooden pins.

The connection of the two profiles is carried out by means of a screw connection according to EP 0 810 377 A1.

According to French patent specification FR2 466 219, the frame arms of the frame are connected to each other by means of screws whose heads are accessible from the sides of the arms.

SUMMARY OF THE INVENTION

The object of the invention is to provide a front furniture part, in particular a door for kitchen furniture or cabinets, in which the panels are of the desired appearance or shape. The frame arms in which the panels are attached can be easily connected. At the same time, it should be ensured that when connecting the frame arms, they do not become shortened to one another, thereby reducing the risk of chipping of the frame arm material,

Made of wood, for example. Also, the dimensioning of the frame arms should be practically without limitation.

This object is accomplished by a front furniture part, in particular a furniture door, comprising a frame with bevelled interlocking arms, consisting of blanks of profiled rails available as a metered product, provided with a groove in the longitudinal direction, further comprising at least one inflatable insert grooves forming a circumferential inner groove of the frame, or an inner frame in which the filler is located, wherein each of the tapered surfaces protrudes two mutually parallel openings that fit into the corresponding openings of the adjacent tapered surface of an adjacent frame arm according to the invention, that cylindrical timber elements are provided in the matching holes of the adjacent frame arms that each of these wooden elements is permanently or substantially permanently fixed in the opening of one frame arm and by means of The connecting element, which extends from the rear region of the frame arm and is outer coverable, is detachably fastened in the opening of the other arm into which the aperture fits, and for joining the respective wooden element, the wooden element is glued in the respective opening.

According to the invention, therefore, the alignment of the frame arms is performed such that the parallel wooden elements are fixed in the openings so that the first wooden element is glued into the opening of the first arm and the second wooden element is glued into the opening of the second frame arm. This embodiment thus allows the frame arms to be easily aligned with one another and subsequently joined by means of fasteners, for example screws, without having to pass through the back of the frame in a narrow space. This has the advantage that the wooden elements, such as wooden pegs or wooden pegs, can be placed close to each other.

The dimensions of the frame arms can thus be smaller without any problems when replacing the panels or the panels. inner frame.

Cross-recessed countersunk head screws, for example, can be used as fasteners to allow the cover cap to be attached.

The length of the wooden peg itself is about 1/3 to 2/3, but in particular 1/2 of the length of the wooden peg.

Thus, the wooden peg should extend beyond the outer tapered surface of the frame, while the wooden peg should extend inside the tapered surface of the frame. Thus, at the presumed length dimensions, sufficient space is available for the wooden stud.

Furthermore, it is assumed that the longitudinal axis of the openings of the frame arms which are aligned with one another lie in parallel planes, that is to say offset from each other, which sufficiently ensures that the frame arms do not rotate.

The mutual connection of the frame arms is carried out in such a way that the wooden pins are fastened by screws in the longitudinal arms of the frame, while the wooden pins in the transverse arms of the frame. The axes of the holes in the longitudinal arms should be parallel to the transverse arms of the frame, thereby simplifying its mon45 mounting or mounting. its dismantling.

Regardless of the type of connection of the frame arms to each other, it is believed that the visible inner or outer surfaces of the arms, the filler and / or the inner frame in which the filler is attached form part of the outer surface of the front furniture piece. In this case, the inner and outer surfaces of the inner frame may have different profiles and / or may be provided with different coatings. It is also envisaged that at least the profile material of the outer frame is coated with a plastic film, the plastic film being overlapped at the bottom of the groove.

The method of manufacturing a front furniture piece with a frame and a replaceable panel consists of the following technological process.

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Making a first longitudinal frame arm and a second cross frame arm by cutting from the profile bar, the cutting being performed with oblique bevels.

Creating two holes in the frame arm that are parallel to its longitudinal axis with a predetermined depth relative to the frame arm reference surface.

Inserting and gluing a first cylindrical timber element into a first opening formed in the tapered contact surface of the longitudinal arm of the frame, the first timber element projecting above the tapered surface.

Inserting and gluing the second cylindrical timber member into the second opening formed in the tapered surface of the frame cross-member.

Coupling the transverse arm to the longitudinal frame arm by inserting protruding portions of the first and second wooden members into the respective holes.

Fastening of non-glued parts of wooden elements by screws from the rear side of the frame arms.

Inserting the filler or inner frame in which the filler is fixed into a U-shaped groove of the frame arms aligned with each other.

Coupling the remaining longitudinal arm to the transverse arms of the frame by means of protruding portions of the first and second timber members inserted into respective holes in the mutually connected arms.

Fastening of non-glued parts of wooden elements by screws from the rear side of the frame arm.

BRIEF DESCRIPTION OF THE DRAWINGS

Further details, advantages and features of the invention will be apparent not only from the claims, but also from the following description of exemplary embodiments shown in the drawings. Here means:

Fig. 1 the rear side of the assembled front furniture part according to the first exemplary embodiment; Fig. 2 the front furniture part of Fig. 1 with the longitudinal frame arm removed; Fig. 3 the front furniture part according to Fig. 1 with the panel removed; 4 shows the front furniture part according to FIG. 4 with the longitudinal arm of the frame removed, FIG. 6 the front furniture part according to FIG. 4 with the filling removed, FIG. 7 the front furniture part according to FIG. Fig. 8 is a cross-sectional view taken along line VIII-VII in Fig. 4; Fig. 9 shows an inner frame arm embedded in an outer frame arm; Fig. 10 a detail of a cross section of an outer frame arm; Fig. 12 shows another exemplary embodiment of a frame in which the filler is attached, Fig. 13 is an enlarged detail of the frame arms, Fig. 14 is a sectional view in a plane XIV-XIV shown in Fig. 13,

FIG. 15 shows a variant of the embodiment according to FIG. 14, FIG. 16 shows the principle of making a frame arm of a front furniture part corresponding in particular to the exemplary embodiment according to FIGS. 1 and 4.

DETAILED DESCRIPTION OF THE INVENTION

1 to 3 show a first exemplary embodiment of the assembled front furniture piece 10, wherein the assembled front furniture piece, as shown in FIGS. 2 and 3, is detachable from the outside by a simple hand feel. The front furniture part 10 essentially consists of transverse arms 12, 14 and longitudinal arms 16, 18 of the frame in which the removable insert 20 is inserted. The transverse arms 12, 14 are simply detachably connected to the longitudinal arms 16, 18 by wooden pins 22, 24 and wooden pegs 26, 28.

To illustrate simple manual handling to change the external appearance of the front furniture piece 10 of the invention, various state changes are shown in Figures 1 to 3. Fig. 1 shows the rear side of the assembled front furniture piece 10, which is attached to the cabinet body by means of, for example, furniture hinges 30, 32. Fig. 2 shows just the longitudinal frame arm 18 removed from the transverse arms 12, 14. the filling 20 may be removed or another filling may be inserted as shown in FIG. 3.

Figures 4 to 7 show the front furniture element 34 The same components as those of Figures 1 to 3 are designated with the same reference numerals. In other words, the front furniture piece 34 is also composed of transverse arms 12, 14 and longitudinal arms 16, 18 which are detachably connected to each other by means of wooden pins 22, 24 and wooden pegs 26, 28. The inner longitudinal arm 16 of the frame is also provided with furniture hinges 30, 32, or corresponding suitable suspension means for connecting the front furniture piece 34 to the furniture body.

In contrast to the exemplary embodiment of Figures 1 to 3, however, the filler 20 is not immediately attached in the longitudinal arms 16, 18 and the transverse arms 12, 14 of the outer frame, but in the inner frame 36, which consists of the arms 38, 40, 42 and 44 .

The various assembly states of the front furniture 34 are shown in Figures 4 to 7, which also show that the simple appearance of the front furniture 34 can be altered by simple manual manipulation. Fig. 4 shows the rear side of the assembled front furniture 34. FIG. 5 shows the longitudinal arm 18 of the outer frame just removed from the transverse arms 12, 14, in which the longitudinal arm 44 of the inner frame 36 is detachably provided to allow the removal of the infill 20 and the inner frame, respectively; inserting a different fill. As further shown in FIG. in order to replace the inner frame 36, it is necessary that the arms 38, 40, 42 and 44 be removed from the groove 40 in the outer frame.

FIG. 8 is an enlarged view of the outer frame made of arms 12, 14, 16, and 18 and the inner frame 36 detachably mounted therein, 38, 40, 42, and 44 for further clarification. the section along line VIII-VIII shown in Figure 4.

Each of the legs 12, 14, 16 and 18, and thus the legs 16 and 18 of FIG. 8, represent cut parts of metered goods, for example of profile rails, which have grooves 46, 48 formed in the longitudinal direction. 16 and 18 are disposed relative to the grooves 46, 48 such that they form a circumferential inner groove into which the replaceable filler 20 can be inserted according to the exemplary embodiment of Figures 1 to 3, or according to the exemplary embodiment of Figures 4 to 7 The interchangeable arms 38, 40, 42 and 44 of the inner frame 36 are interchangeable. To this end, the arms of the inner frame 36, such as the arms 40, 44 shown in Fig. 8, are provided with protrusions 50, 52 adapted to the grooves 46, 48. in which they are flush.

The arms 38, 40, 42, and 44 of the inner frame 36 are also cut from the meter blank, which is the profile rail, and are also provided with an inner circumferential groove formed by the grooves 54,

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56, in which a replaceable filler 20 is inserted. According to the exemplary embodiment shown in FIG. 8, the filler 20 may consist of a total of three plates 58, 60 and 62.

It is further evident from FIG. 8 that the grooves 46, 48 of the outer frame are in a different plane from the grooves 54,

56 of the inner frame 36, whereby the cassette effect and the depth sensation associated with the front furniture piece 34 can be achieved.

The details, particularly with respect to the embodiment of the detachably fitted arms 38, 40, 42, and 44 of the inner frame 36 into the outer frame, are apparent from FIG. 9.

Since the arms 12, 14, 16 and 18 exhibit the same profile, the front furniture piece and the front panel are characteristic. The inner frame 36, inserted into the outer frame, is illustrated by one longitudinal arm 18 of the outer frame.

In the groove 46 there is a projection 52 formed on the arm 44 of the inner frame 36, and a groove 66 is formed on the surface of the projection 52 facing the bottom 64 of the groove 46. This has the advantage that any unevenness in the bottom region 64 of the groove 46 the arm 44 of the inner frame 36.

The arm 44 of the inner frame 36 is formed as a double-sided arm, that is, it can form both the visible outer surface 68 and the inner surface 70 (shown in dashed lines) of the front furniture component 34, each surface 68, 70 having a different color and / or another pro

Therefore, in order to achieve a different shape, it is necessary that the arm 44 of the inner frame 36 be removed from the groove 46 and rotated 180 °. In the arm 44, two mutually parallel and spaced apart grooves 72, 74 can be formed into which the filler 20 can be inserted. According to an exemplary embodiment, the filler 20 is inserted in the groove 72 and thus forms the outer face of the furniture piece.

The formation of a rounded groove 66 in the arm 44 of the inner frame 36 has the particular advantage if there are grooves 46 formed in the bottom 64 formed in the longitudinal arm 18 of unevenness. As shown in FIG. 10, these inequalities; for example, if the arm 18 is coated with a plastic film 76, then the overlap 78 of the ends of the film 76 is located just in the bottom 64 of the groove 46.

FIG. 11 shows a special embodiment of the outer frame arm 80, which is fully coated with a plastic film. Also, the inner space of the groove 82 intended for the inner frame arm (not shown here), by which the side walls 84, 86 of the groove 82 are separated from each other, can also be completely filled with this foil so that the adhesive cannot come into contact with the opposite lateral sides. As a result of this design of the outer frame arm 80, structurally simple changes make it possible that the material can be completely covered with foil without the filler not shown here having to be removed from the front of the front furniture piece, allowing the height of the side wall 86 Once different groove depths were not formed while fully covering the film arm 80, the depth of the groove relative to the width of its bottom would have to be selected to be twice as high.

Fig. 12 shows another exemplary embodiment of a front furniture piece in which the panel 20 is mounted immediately in the outer frame, i.e. arms 12, 14, 16 and 18. In the exemplary embodiment of Fig. 12, the panel consists of a total of three elements 88, 90, 92, wherein the elements 80, 92 are formed in the form of plates, while the element 90 is formed as an outwardly protruding part which is a flax cassette effect.

Figures 13 to 15 show purely in principle the interconnection of the frame arms, in the exemplary embodiment of the arms 12 and 18, at the same time the at least longitudinal arm 18 having to be detachably connected to the transverse arms 12, 14. Although, according to FIG. arms 38, 44

The same applies, of course, to the front furniture part in which the panel is immediately attached to the outer frame.

In order to connect the arms 12, 18, parallel openings 98, 100 and 100 are formed in the chamfered surfaces 94, 96, respectively. 102,104, which, when the arms 12, 18 are lowered, are connected to each other continuously and thus form mutually parallel hollow spaces. The cylindrical timber elements 106, 100, 102, 104 are inserted into the openings 98, 100, 102, 104 in the form of wooden pins 106 and 106, respectively. wooden pegs 108 which provide the desired connection between the arms 12 and 18, and which at the same time allow for their detachable connection. To this end, a portion of the respective wood element is always glued in one of the openings, while its protruding portion is inserted into the other opening and secured from the rear of the arms 12, 18 by means of screws. According to an exemplary embodiment, the wooden pin 106 is glued in the opening 102 in the longitudinal arm 18, with its bevelled surface 96 projecting portion inserted into the opening 98 in the transverse arm 12 where it is fastened by a screw. Conversely, a wooden peg 108 is glued in the opening 100 in the transverse arm 12, while its overlapping portion 94 is inserted into the opening 104 in the longitudinal arm 18 in which it is fastened by a screw.

It is further evident from Fig. 13 that the wooden pin 106 is shorter than the wooden pin 108, the shorter wooden pin 106 being closer to the outer edge of the transverse arm 12, while the wooden pin 108 is spaced apart, i.e. closer to the inner edge of the transverse arm 12 frame.

As further shown in FIG. 14, the longitudinal axes of the openings 98, 100, 102, 104 may lie in a plane that is parallel to the front face of the front furniture piece. However, the openings 98, 102 may also be offset with respect to the openings 100, 104, as shown in principle in FIG. 15.

Because before the arms 12 and 18 are brought together from each tapered surface 94, 96, the wooden pins 106 and 106 respectively protrude. the wooden pegs 108, the relative alignment of the arms 12, 18 is relatively simple. Wooden pins 106, resp. the wooden pegs 108 are then fastened in the arms 12, 18 from their rear sides by screws 105 whose heads are covered by a cap.

Fig. 16 schematically illustrates a bevel cut procedure for accurately assembling the arms of the inner and outer frames at right angles. According to this process, the profile strip 106 'forming the outer frame is temporarily connected in sections 110 to the profile frame 108' forming the inner frame, the sections 110 essentially constituting unusable waste. The interim connection can be made, for example, by means of clamps or similar clamping means. This ensures that the profile bars 106 ', 108' cannot be displaced relative to each other when sawing with the saw blade 112. After the bevel cut is made with the saw blade 112, the cut surface 114 is reached to the stop 116, thereby determining the exact length of each of the arms (not shown). Since the saw blade 112 has a clearly defined position with respect to the stop 116, it is ensured, according to the principle shown in FIG. 16, that the bevels cut under the chamfer have the required lengths and that the bevels are sufficiently accurate to guarantee a precise bevel joint. assembly of the front furniture part.

Claims (12)

A front furniture piece (10, 34), in particular a furniture door, comprising a frame with bevelled interlocking arms (12, 14, 16, 18), consisting of blanks (106 ', 108') available as metered goods having a groove in the longitudinal direction, further comprising at least one infill (20) interchangeably insertable into one of the grooves forming the circumferential inner groove of the frame, or an inner frame (36) in which the infill (20) is received; each of the tapered surfaces (94, 96) projecting two mutually parallel openings (98, 100, 102, 104), which fit flush to the corresponding openings (98, 100, 102, 104) of the adjacent tapered surface (94, 96) of the adjacent arm (94, 96). 12, 14, 16, 18), characterized in that in the matching holes (98, 100, 102, 104) of the frame arms (12, 14, 16, 18) which are adjacent to one another 15, cylindrical timber elements are provided such that each of the timber elements is permanently or substantially permanently fixed in the opening (98, 100, 102, 104) of one frame arm (12, 14, 16, 18) and by a connecting element extending from the rear region of the frame arm (12, 14, 16, 18), and on the outside is coverable, it is detachably mounted in the opening (98, 100, 102, 104) of another arm (12, 14, 16, 18) into which the aperture (98, 100, 102, 104) is flush, and for 20, the fastening of the respective wood element is glued in the respective opening (98, 100, 102, 104). A front furniture piece according to claim 1, characterized in that the cylindrical wooden element is a wooden stud (106). A front furniture piece according to claim 1 or 2, characterized in that the cylindrical wooden element is a wooden peg (108). A front furniture piece according to one of the preceding claims, characterized in that: 30 that a permanently or substantially permanently fixed portion of the wood element in the opening (100, 102) is glued. Front furniture element according to one of the preceding claims, characterized in that the connecting element is a countersunk head screw (105) provided with a cross recess with a recess for the cover cap (107). 6. A furniture item according to claims 2 and 3, characterized in that the wooden stud (106) has a length which is 1/3 to 2/3, in particular 2, of the length of the wooden stud (106). 108). A front furniture piece according to claims 2 and 3, characterized in that the wooden stud (106) 40 is arranged in the outer edge of the frame arm (12, 14, 16, 18) and the wooden peg (108) is arranged on the inner side of the frame edge. Front furniture piece according to one of the preceding claims, characterized in that the longitudinal axes of the mutually intersecting openings (98, 100, 102, 104) extend in one direction 45 in a plane or in mutually parallel planes which extend or extend parallel to the plane of the front furniture piece. Front furniture part according to one of the preceding claims, characterized in that the wooden peg (108) is fastened by a screw (105) in the longitudinal frame arm (18) and the wooden peg. 50 (106) in the frame cross member (12). Front furniture piece according to one of the preceding claims, characterized in that the openings (98, 100, 102, 104) extend parallel to the cross-member (12) of the frame. -7EN 299475 B6 A method of manufacturing a front furniture piece according to at least claim 1, characterized in that the profile rails are cut obliquely to be beveled to produce the first and second frame arms as longitudinal and transverse arms of the front furniture piece; 5 - at the predetermined standardized distances from the frame arm reference surface, first and second holes are formed running parallel to the longitudinal axis of each frame arm; a first cylindrical wooden element is inserted and glued into the first opening of each bevelled contact surface of the frame arm configured as a longitudinal frame arm, the first wooden elements protruding from the bevel surface; - a second cylindrical wooden element is inserted and glued into the second opening of the frame arm configured as a transverse frame arm; the two transverse frame arms are connected to one longitudinal frame arm by inserting the projecting portions of the first and second wooden elements into the respective free second and first openings of the adjacent arm; 15 - non-glued parts of wooden elements are screwed from the rear side of the frame arms; - a filler or a filler placed in the inner frame is inserted into the U-groove of the assembled transverse arms and the longitudinal arm; a further longitudinal frame arm is connected to the transverse arms by inserting in each case the protruding portions of the first and second wooden elements into the corresponding free first and second openings in the interest of adjacent frame arms; and - the non-glued parts of the wooden elements are screwed from the back of the frame arms. The method of claim 11, wherein the intersecting first holes and the second holes are brought into parallel planes extending parallel to the plane of the front furniture piece.