Method for producing a veneer from rattan, veneer sheet, and molded component

Abstract

A method for producing a veneer in the form of a veneer sheet, wherein the method includes the following method steps: a) providing a plurality of rattan rods having tubules extending longitudinally, b) producing profiles from the plurality of rattan rods, the tubules extending in the longitudinal direction of the profiles, c) connecting the profiles to form a main body, wherein the profiles are arranged within the main body in such a way that the tubules extend in the longitudinal direction and/or transversely to the longitudinal direction and/or at a predefinable angle to the longitudinal direction of the main body, and d) cutting the main body produced in step c), the veneer sheet being obtained. A moulded component is also disclosed.

Claims

1. A method for producing a veneer in the form of a veneer sheet, comprising the following method steps: a) providing a plurality of rattan rods having longitudinally running tubes; b) generating profiles from the plurality of rattan rods, wherein the tubes extend in the longitudinal direction (L) of the profiles; c) joining the profiles so as to form a primary element, wherein the profiles within the primary element are disposed in such a manner that the tubes extend in the longitudinal direction (L) of the primary element; d) cutting the primary element established in step c), wherein veneer sheets are obtained and wherein the cut is performed in such a manner that a sectional plane (S1) runs at a transverse direction of the tubes in the primary element; e) incorporating into the tubes of a veneer sheets obtained in step d) a pulverulent material; and f) subjecting the veneer sheets and incorporated matter to a heat treatment.

2. The method as claimed in claim 1, wherein in step b) the profiles are formed into boards, and in step c) the boards produced are joined so as to form the primary element.

3. The method as claimed in claim 1, wherein the tubes of the rattan rods provided in step a) and/or the profiles generated in step b) and/or the primary elements generated in step c) are filled with a liquid.

4. The method as claimed in claim 1, wherein in step c) a material is applied at least to a surface of the primary element that runs perpendicularly to a sectional plane (S, S1, S2).

5. The method as claimed in claim 4, wherein in step c) the primary element is moisturized.

6. The method as claimed in claim 1, wherein the primary element in step c) is connected to a holding device.

7. The method as claimed in claim 1, wherein in step e) a carrier material is applied to the reverse side of the veneer sheet obtained in step d), and/or a transparent layer is applied to the visible side of a veneer sheet obtained in step d).

8. A veneer sheet which is produced by a method as claimed in claim 1, wherein the veneer sheet has a material thickness of 0.3 to 10 mm.

9. A molded component formed from at least one veneer sheet as claimed in claim 8, wherein a plurality of veneer sheets are stacked on top of one another or joined to one another.

10. A molded component formed from at least one veneer sheet as claimed in claim 8, wherein the veneer sheet is applied to a carrier material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be explained in more detail hereunder by means of figures in which

(2) FIG. 1 shows the sequence of the method according to the invention;

(3) FIG. 2 shows a first exemplary illustration of a block-shaped primary element generated in step c), in a front view;

(4) FIG. 3 shows a second exemplary illustration of a block-shaped primary element generated in step c), in a front view;

(5) FIG. 4 shows an exemplary illustration of a board-shaped primary element generated in step c), in a front view;

(6) FIG. 5 shows an exemplary illustration of a third veneer sheet generated in step d); and

(7) FIG. 6 shows an exemplary illustration of a veneer sheet from a primary element according to FIG. 3.

DETAILED DESCRIPTION

(8) FIG. 1 shows a flow diagram of the method according to the invention. In step a) rattan rods having longitudinally running tubes are provided. The rattan rods can be rattan rods from raw rattan material. However, said rattan rods can also be rattan rods which have been treated by means of a liquid. The tubes herein are completely or partially filled with a liquid.

(9) In step b) profiles 3 are subsequently generated from said rattan rods, wherein the tubes 4 extend in the longitudinal direction of the profiles 3. The rattan rods herein are processed in such a manner that the profiles 3 have a predefined cross-section, for example a triangular, quadrangular, or hexagonal cross-section. The profiles 3 herein have a direction of extent in the longitudinal direction of the tubes 4. In a step b1) boards 2 can subsequently be produced from the profiles 3 produced in step b).

(10) Subsequently, in step c) the profiles 3 produced in step b), or the boards 2 generated in step b1), respectively, are processed so as to form a primary element 1. The profiles 3 or boards 2, respectively, are expediently joined to one another, for example adhesively bonded or compressed. To this end, the profiles 3 or boards 2, respectively, are mutually disposed in a predefined direction in order for the primary element 1 to be formed. Neighboring profiles 3 or boards 2, respectively, herein are disposed in such a manner that the tubes 4 run in a mutually parallel and/or perpendicular manner. Alternatively or additionally, however it is possible for the profiles 3 be mutually disposed in such a manner that the tubes 4 have a predefined mutual angle.

(11) In an optional step c1) a material 7 can be applied to a surface of the primary element 1 that runs perpendicular to a sectional plane S, S1, S2. It is prevented on account thereof that in the event of a cut in the direction of the arrow (FIG. 2) the surface 1a of the primary element 1 on which the material 7 bears is frayed or torn, respectively, on account of the cutting procedure. In a further optional step c2) the primary element 1 can be incorporated in a holding device. In an optional step c3) the primary element 1 can subsequently be moisturized. This moisturization can be performed, for example, in a temperature-controlled liquid bath or in a steam environment.

(12) In a step d) the primary elements established in step c) are cut or sawn. Veneer sheets are generated on account thereof. The thickness of the veneer sheets herein can be set to 0.3 mm to 10 mm. Of course, greater or lesser thicknesses are also possible. In an optional step d1) the veneer sheets are dried.

(13) The veneer sheets produced can be further processed in a step e). For example, a plurality of veneer sheets herein can be connected to one another in the form of a stack. However, it is also possible for the veneer sheets on the visible side to be coated with a transparent or semi-transparent cover layer. The veneer sheets can however also be additionally constructed so as to have a reinforcement layer on the reverse side.

(14) It is to be pointed out here that the treatment of the rattan rods with a liquid described in step a) can alternatively also take place in step b) in such a manner that the profiles generated are treated with the liquid in step b). Alternatively, the treatment with a liquid can also take place in step c) in such a manner that the primary element constructed from the profiles generated is treated with liquid.

(15) FIG. 2 in a perspective view shows a first exemplary illustration of a primary element generated in step c). The primary element 1 herein is constructed from a plurality of boards 2 that are stacked on top of one another. Each board 2 is composed of a plurality of profiles 3a, 3b. The tubes 4 in the profiles 3a, 3b run in each case in a mutually parallel manner in the longitudinal direction of the profiles 3. The boards 2 are in each case formed from a plurality of profiles 3a, 3b that are disposed beside one another. The tubes 4 within a board 2 in an exemplary manner run so as to be parallel (in the profiles 3b) or perpendicular (in the profiles 3a) to the upper side 2a or the lower side 2b of the board 2. The profiles 3a, 3b in an exemplary manner are glued to one another at the connection faces 6. Neighboring boards 2 are in each case glued to one another on the upper side 2a and the lower side 2b.

(16) The primary element 1 has a surface 1a. A material 7, for example a board, is attached to said surface 1a of the primary element 1. Said material 7 can be adhesively bonded to the primary element 1. However, it is also possible for said material 7 to be releasably clamped with the primary element 1. The primary element 1 has a sectional plane S. Said sectional plane S runs perpendicularly to the material 7. The cutting direction is indicated by the direction of the arrow in FIG. 2. A cut is thus guided along the direction of the arrow R through the block 1 in the direction of the material 7. The fraying or tearing, respectively, of the surface 1a is thus minimized or avoided, respectively, in the cutting procedure in step d).

(17) FIG. 3 in a perspective view shows a second exemplary illustration of a block-shaped primary element generated in step c). By contrast to the first primary element 1 according to FIG. 2, all of the tubes 4 in the profiles 3 in the primary element 1 illustrated in FIG. 3 are aligned so as to be mutually parallel. For reasons of clarity, the material 7 on the surface 1a of the primary element 1 is not illustrated in FIG. 3. FIG. 3 shows two sectional planes S1, S2. The sectional plane S1 runs perpendicularly to the longitudinal axis L of the tubes 4. The veneer sheet generated therefrom is also referred to as a grain-cut veneer. Said grain-cut veneer is distinguished in that it is permeable to light and sound. Said grain-cut veneer is thus suitable, for example, as a lampshade or as a cover for a loudspeaker. FIG. 3 furthermore shows a sectional plane S2 perpendicular to the sectional plane S1. This sectional plane S2 runs parallel to the longitudinal axis L of the tubes 4. A sectional plane which runs at a predefined angle to the sectional plane S1 or S2, respectively, is not plotted.

(18) FIG. 4 in a perspective view shows an exemplary illustration of a board-shaped primary element generated in step c). The primary element 1 in an exemplary manner is constructed from three profiles 3 that are disposed beside one another. The board-shaped primary element 1 extends in the longitudinal direction L. The sectional plane S1 runs along the longitudinal direction L. A veneer sheet is thus fabricated along the longitudinal direction of the individual tubes 4.

(19) FIG. 5 shows an exemplary illustration of a veneer sheet generated in step d), having an individual pattern of the tubes 4. The veneer sheet 5 is constructed from a plurality of profiles 3a, 3b, 3c. According to FIG. 2, the profiles 3a run in such a manner that the tubes 4 run perpendicularly to the upper side and the lower side 2a, 2b of the boards 2. To this end, the profiles 3b are disposed so as to be perpendicular, specifically in such a manner that the tubes 4 run parallel to the upper side and the lower side 2a, 2b of the boards 2. FIG. 3 shows additional profiles 3c which are disposed in such a manner that the tubes 4 run parallel to the upper side and the lower side 2a, 2b of the boards 2 and perpendicularly to the drawing plane.

(20) FIG. 6 in an upper and a lower picture shows an exemplary illustration of a veneer sheet from a primary element 1 according to FIG. 3 in a sectional illustration. The upper picture shows a veneer sheet 5 which has been cut from the primary element 1 according to FIG. 3 along the sectional plane S1. FIG. 6, upper picture, shows said veneer sheet 5 having a thickness d in a sectional illustration along the plane S2. The tubes 4 in the veneer sheet 5 are disposed so as to be mutually parallel. The veneer sheet 5 on the reverse side is applied to a carrier material 8. The carrier material 8 herein can be a non-woven or a board. The assembly from the veneer sheet 5 and the carrier material 8 is fastened to a mounting 10. A transparent layer 9 is applied to the visible face of the veneer sheet 5, that is to say on the surface of the veneer sheet 5 that is opposite the carrier material 8.

(21) The lower picture shows an assembly from two veneer sheets 5 which are stacked on top of one another and are applied to a carrier material 8. A transparent layer 9 is supplied to the upper side of the upper veneer sheet 5. The carrier material 8 herein is composed of a non-woven, textile, or a film 8a which on the reverse side is applied to the stack of veneer sheets 5. The assembly from the veneer sheet stack 5 and the non-woven 8a is applied to a carrier 8b, for example a board.

LIST OF REFERENCE SIGNS

(22) 1 Primary element 1a Surface of primary element 2 Board 2a Upper side 2b Lower side 3a Profile 3b Profile 4 Tube 5 Veneer sheet 6 Connection face 7 Material 8 Carrier material 8a Non-woven/film 8b Carrier 9 Transparent layer 10 Mounting S, S1, S2 Sectional plane L Longitudinal axis of tube R Cutting direction