FR2531008A1 - METHOD FOR OBTAINING A BED FROM SHEET MATERIAL, FLAN PREPARED FOR CARRYING OUT THE METHOD AND BED OBTAINED - Google Patents

Abstract

THE INVENTION RELATES TO THE OBTAINING A BED BY FOLDING A PRE-CUT BLANK IN MATERIAL SUCH AS CORRUGATED CARDBOARD. THE PURPOSE OF THE INVENTION IS AN EASY TO TRANSPORT BED IN THE FORM OF A FLAT LAYOUT, EASY TO MOUNT ON SITE AND EASY TO DISASSEMBLE FOR NEW TRANSPORTATION. A CENTRAL PART 1 IS EDGED BY FLAPS 17, 18 WHICH FOLD IN TO FORM THE EDGES AND BY OTHER FLAPS 7, 10, 11 WHICH FOLDED TO FORM THE HEAD AND FOOT AND BLOCK IN THE EDGES THANKS TO NOTCHES .

Description

The present invention relates to a process

  for obtaining a bed from a flat sheet of material

Rigid material.

  The process was developed for the construction

  a doll's bed from a cardboard sheet, but it also applies to the construction of a bed for

  child or adult, using resistant materials

adequate mechanical strength.

  For a number of years, there has been a great development in the art of making packaging from a sheet, or blank of cardboard or the like, which undergoes in the factory preparation

  essentially consisting of cutting and confection

  folding lines, and then they are sent flat instead of

  where they are folded and possibly glued

  to obtain the desired packaging This way of doing things saves a lot of money on the cost of transporting empty packaging, as well as reducing the number of

  these packages that are damaged before use.

  Such methods have also been proposed in the furniture field. For example, French patents published under No. 2,424,006 and under No. 2,440,709 relate to removable seats. However, the problems relating to seats do not permit to transpose the

  mounting systems from one type of furniture to another.

  There is therefore a need for a method of obtaining

  a bed from a sheet of rigid material, and that the flat transport of the construction elements, the

  easy installation of the bed, easy disassembly for a new

  calf transport flat followed by a winding movement.

  The object of the invention is to provide such a product.

  assigned, which also allows to obtain a bed from a single sheet of material, cut into a unitary unit. The present invention therefore provides a method which comprises the following steps a flat sheet of rigid material is taken,

  it is cut to obtain a rectangular central part

  bordered on two opposite first sides of two first flaps wider than said first sides 1, and on the two opposite second sides of two second flaps comprising a first portion of the same width as said second flaps.

  sides and extended by a second part wider than the-

  said second sides, the width of the first flaps being

  less than the sum of the lengths of a first side and the lengths of the first two parts of the second flaps;

  cutting on the extreme edge of the second

  notches notches substantially in continuation of the first

  sides and, in the first flaps of the notches,

  singing outward, of parallel general direction

  to that of the second sides separated by a distance at least equal to that which separates the second sides and approximately equidistant from the first side and the edge of the flap; bending lines are prepared along the first and second sides, in the first flaps parallel to the first sides passing approximately through the middle of said flaps, and at the boundary of the first and second parts

  second flaps as well as in the second part of the se-

  flap condes, parallel to the second sides, the distance between these last two fold lines being less than half the total length of the second flap; all said fold lines being on the same face of the sheet except those along the second sides;

  fold the first flaps along the line

  bending pin located along the first side and that which passes approximately in their middle, thereby bringing the edge of the first flaps into contact with the central portion, the two

  parts of the first flap being perpendicular to that part

  central section; in that the second flaps are folded along the fold line along the second side and the other two fold lines of said flaps; we bring each notch a second flap in

  contact with a new encoofhe obtained from the

  size of a first flap when folding it; said notches are penetrated into each other until the edge of the second flap comes into

  contact with the central part or the bottom of one of the

with the bottom of the other,

  Preferably, the cuts provided on the first

  first flap have the shape of a symmetrical V with respect to the

  folding line of said flap, the tip of the V being so-

  killed on said fold line and moving away from the middle of the

  flap, and the branch of the V which is on the side of the central part

  trale being directed substantially towards the most

  said central portion, and advantageously the angle of the branches of the V with the fold line of the first flap is calculated so that when the second flap is fully engaged in the notch formed by said notch when folding the two parts the first flap one on the other

  and perpendicular to the central part, the first

  the second part of the second flap is oriented

  siply perpendicular to the central part.

  Preferably also the difference between the width

  the first flap and the length of the first side of the

  central section is calculated so that after assembly of the bed, the ends of the first folded flap come to bear on the

  inner face of the first zone of the second part of the second

cond flap.

  The invention will be described in more detail with the help of

  of a practical example, illustrated by the drawings, among which: Fig 1 is a plan view of the blank prepared for

the folding.

  Fig 2 is a perspective view of the finished bed.

  FIG. 1 shows a blank made of corrugated cardboard, cut and provided with fold lines in a pattern with two rectangular axes of symmetry, and intended to

  to obtain a bed whose head and foot are identi-

  However, it is possible to provide a reason for de-

  non-symmetric cutting and folding with respect to a transverse axis

  versal, if it is desired that the head and foot be different

  as will be explained later.

  A central portion 1, of rectangular shape, is intended to form the bottom of the bed It is limited by

  two large sides, each marked by a fold line

  ge 2 and two short sides also materialized by a

  Folding pin 3 Folding line 3 is located on the face

  lower part of the blank, whereas the fold line 2 is made

on the upper side.

  The fold line 2 separates the central portion 1 of a first flap 4 whose width is greater than that

  of the fold line 2 To achieve this result, this

  folding pattern is extended on each side by a line

incision 5.

  The fold line 3 separates the central portion 1 from a second flap 6, which comprises a first portion 7, of the same width as the central portion, and which is separated from the first flap 4 by the incision line 5, and a second part 8 which is wider than the first part 7 and in

  is separated by a fold line 9 This fold line

  ge is beyond the side edge of the first flap 4.

  The second part 8 is itself divided into a median zone 10 and an end zone 11 by a fold line 12 parallel to the fold lines 3 and 9. The fold lines 9 and 12 are provided on the upper face of the blank . The length of the median zone 10, that is to say

  the distance between the fold lines 9 and 12 is less than

  than half of the total length of the second flap, that is to say the distance between the fold line 3 and the outer edge 13 of the flap This has the consequence that we can fold this flap by bringing the edge 13 in touch with

  of the fold line 5 forming a triangular section prism

angular.

  The edge 13 has two notches 14 whose length is approximately equal to one quarter of the width of the first flap 4, and whose width is substantially equal to or slightly greater than twice the thickness of the material which

  The notches are essentially in the

along the fold lines 2.

  The first flap 4 has, on each side, an

  size 15, which does not open outwards.

  it is in the part of the flap that is beyond the bounds

  2 and is therefore limited by the line of inci-

  5 The notch 15 is symmetrical with respect to a line

  16, parallel to the fold line 2, and which shares

  The flap is divided into two substantially equal portions 17 and 18, the portion 17 being located between the fold line 2 extended by the incision lines 5 and the fold line 16, while the portion 18 is located between the fold line. 16 and

the outer edge 19 of the flap 4.

  The notch 15 has the shape of a V whose point is on the fold line 16 and is directed away from the middle of the flap 4 O The part of the notch which is in the part 17 is directed from way that his extension passes

  substantially by the angle closest to the central part

  the 1 defined by the meeting of the folding lines 2 and 3 and

  of the incision line 5 However, the notch 15 does not

  only about half of the distance between the fold lines 2 and 16 is the width of the notch 15 is equal to or slightly greater than the thickness of the material which

constitutes the blank.

  If we fold the two sides of the blank around

  folding means 2 and 16 so as to bring the edge 19 in

  tact with the fold line 2, the two parts 17 and 18 e-

  both perpendicular to the central portion 1, the notch 15 forms a notch in which can penetrate the edge

13 of the second flap 6.

  The mounting of the bed from the blank thus prepared is carried out in a simple way: -only 1800 parts 17 and 18 of the first

  flaps 4 around the fold line 16, and then fold the

  appears at 90 around the fold line 2, -on folds the zones 10 and II of the second flaps 6 around the fold line 12 and, by playing the fold lines 9 and 3, the notches 14 are brought into contact with each other. notches formed by the notches 15, and the two flaps are interpenetrated until the edge 13 comes into contact with the central portion 1,

  about when the bottoms of the two notches come

  In contact with each other, the bed is then assembled and ready. to receive his equipment: mattress, etc. * The fold line 9 is to constitute the foot of the bed It is noted in Figure 2 that it is double, for reasons indicated below The fold line 16 is to form the edge of the bed, it is also double, in

  the goal of getting a softer form.

  As already mentioned, the first part 7 and the zones 10 and 11 of the second part of the second flap 6

  constitute, after folding, a volume in the form of a triple prism

  angle which constitutes the head or the foot of the bed.

  me and the arrangement of this volume depend on the ratio of the lengths of the elements which compose it, as well as the

  position and inclination of the notch formed by the

size 15.

  It has been found that an arrangement that is pleasing to the eye is obtained by choosing distances between the lines

  3 and 12 and the edge 13 of flap 6 in the

  ports 9:22:18 and giving the angle between the direction of the sides of the notch 15 and that of the fold line 16 a value of about 650 In this case, the zone 10 takes

  after folding a nearly vertical position, and the length

  the incision line 5 is in the ratio 6: 9 with respect to the distance between the fold lines 3 and 9,

  the end of the flap 4 bears against the inside face

  dull area 10, which consolidates the whole.

  If you want a different form, just change these-different ratios For example, if you want

  a footboard lower than the head, the

  between fold lines 9 and 12, and the value of the angle between the direction of the

  sides of the notch 15 and that of the fold line of

  Zone 10 is still vertical.

7 2531008

  It is important from the aesthetic and practical point of view that after folding, the first part 7 is inclined downwards from the folding line 3, so as to constitute a base which avoids the part 1 constituting the bottom of the bed , to be in contact with the ground or to be too close to it The values of supports of length

  and angle given above result in giving the

  an angle of approximately 45 with the central part 1, that is,

to say with the ground.

  For transport to the place of assembly is folded the flaps 4 on the central portion 1, along the fold line 2, then folds the portion 8 of the flaps 6 on the assembly along the fold line 9 , which, as we said above, is double, which makes it possible to take

  the thickness of the flaps 4 is taken into account.

  compact and compact format, particularly

  tageux for transport, storage and presentation

at the point of sale.

  The bed just described can be realized

  corrugated cardboard cut with a laser if it is a toy

  child In the case of an adult bed it will obviously be made of a suitable material: plastic material plates, plywood or metal t 8 provided with joints or hinges at the location of the fold lines, etc.

Claims (7)

  1 Process for obtaining a bed, characterized in that it takes a flat sheet of rigid material, in   it is cut to obtain a central part of   gully (1) bordered on two opposite first sides of two first flaps (4) wider than said first sides, and on the two opposite second sides of two second flaps (6) having a first portion (7) of the same width as said second sides and extended by a second portion (8) wider than said second sides, the width of the first flaps being less than the sum of the lengths   on the one side and the lengths of the first two   second flaps; in that the second edge (13) is cut from the second flaps of the notches (14) substantially in extension of the first sides and, in the first flaps of the notches   (15) does not open outwards, the general direction   parallel to that of the second sides separated by a   distance at least equal to that between the second   and approximately equidistant from the first side and the edge of the flap; in that fold lines are prepared along the first and second sides (2,3) in   the first flaps parallel to the first sides in step-   approximately by the middle of said flaps (16), and =   at the edge of the first and second   second flaps (9) and in the second part   second flaps (14) parallel to the second sides the distance between these two last fold lines being   less than half the total length of the second   beats; all said folding lines being on the same face of the sheet except for those along the second sides; in that the first flaps (4) are folded along the folding line (2) situated along the first side and that which passes approximately through their middle (16), thus bringing the edge (19) first flaps in contact with the 6995 FR   central portion (1) both, portions of the first flap being perpendicular to that central portion;   in that the second flaps (6) are folded along the line   folding pin (5) located along the second side and the two other fold lines (9,12> of said flaps; in that each notch (14) is provided with a second flap in   contact with a new notch obtained from the   size (15) of a first flap when folding thereof; and   in that said notches are penetrated one into the other   until the edge of the second flap comes into contact   tact with the central part, or the bottom of one of the notches, with the bottom of the other.   2 Method according to claim 1, characterized in that the notches (15) provided on the first ra bat (4) have the shape of a V symmetrical with respect to the fold line (16) of said flap, the tip of the V being situated on said folding line and moving away from the middle of the flap, and the branch of the V which is on the side of the central part (1) being directed substantially towards the nearest angle of said central portion.   Process according to Claim 2, characterized   in that the angle of the branches of the V with the fold line   ge (16) of the first flap is calculated so that when the second flap is fully engaged in the notch formed by said notch when folding the two parts of the first   flap on top of each other and perpendicularly-   the first zone (10) of the second part of the se-   cond flat is oriented substantially perpendicularly at the central part.   4 Process according to one of claims 1 to 3,   characterized in that the difference between the width of the ^ (2)   first flap (4) and the length of the first side / part of   The central portion is calculated so that after assembly of the bed, the ends of the first folded flap bear against the inner face of the first zone 10 of the second part. the second flap. 2531008   Method according to one of claims 1   to 4, characterized in that the ratios of the lon-   7, 10 and 11 as well as the angle of the sides of the notch 15 with the fold line 16 so that after mounting the portion 7 is oblique on the central portion 1.   Process according to claim 5, characterized   in that the distances between the fold lines 3, 9 and 12 and the edge 13 of the flap are approximately in the ratio 9: 22: 18 and in that the angle of the sides of the notch with the fold line 16 is about 450 7 blank precut and having fold lines, especially for the implementation of the method   according to one of claims 1 to 6.   8 Lit obtained by the processes according to: Claims 1 to 6.