EP2419344B1 - Caisse pourvue de parois latérales pliables et de mécanismes de verrouillage avec protection contre les surcharges - Google Patents

Caisse pourvue de parois latérales pliables et de mécanismes de verrouillage avec protection contre les surcharges Download PDF

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Publication number
EP2419344B1
EP2419344B1 EP10721724.2A EP10721724A EP2419344B1 EP 2419344 B1 EP2419344 B1 EP 2419344B1 EP 10721724 A EP10721724 A EP 10721724A EP 2419344 B1 EP2419344 B1 EP 2419344B1
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EP
European Patent Office
Prior art keywords
wall
snap
cam
vertical direction
contact surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP10721724.2A
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German (de)
English (en)
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EP2419344A1 (fr
Inventor
Wolfgang Orgeldinger
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IFCO Systems GmbH
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IFCO Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/EP2009/002760 external-priority patent/WO2010118758A1/fr
Priority claimed from DE102009049184A external-priority patent/DE102009049184A1/de
Application filed by IFCO Systems GmbH filed Critical IFCO Systems GmbH
Priority to EP10721724.2A priority Critical patent/EP2419344B1/fr
Priority to SI201030321T priority patent/SI2419344T1/sl
Priority to PL10721724T priority patent/PL2419344T3/pl
Publication of EP2419344A1 publication Critical patent/EP2419344A1/fr
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Publication of EP2419344B1 publication Critical patent/EP2419344B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
    • B65D11/1833—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected whereby all side walls are hingedly connected to the base panel

Definitions

  • the present invention is concerned with easily transportable boxes whose side walls can be folded down for transport and which has a normally open and closable in normal operation locking element for mutual locking of the side walls, which prevents destruction of the walls or the lock in case of incorrect operation.
  • foldable crates or foldable crates are available, which consist of a bottom and with respect to the bottom foldable side walls, so that the boxes can be folded after use by folding down their side walls to save space and inexpensively transported to the place of their reuse to be able to.
  • foldable boxes are used industrially on a large scale and for many different purposes, eg.
  • to transport fruit or vegetables from the harvest fields to the customers such a foldable box needs to meet many different requirements, which partially influence each other.
  • Some requirements arise from the aspect of transportability.
  • the box in the folded state has only a small stack height, so that as large a number of folded boxes can be transported on a pallet during transport.
  • the box should be as light as possible, that is, as little material as possible should be used in order to minimize the ratio of the payload to the weight of the box during transport.
  • the hinge mechanism which provides a hinged connection between the floor and exterior walls of the foldable box, can accommodate large forces. This is finally in the unfolded state, the only frictional connection between the floor on which normally the entire load is arranged, and the outer walls, which are usually located on the handle holes. Even if a robust embodiment of a box is used, destruction of individual components of the box, so in particular it soil or one of the side walls, in hard everyday use is not always excluded. Since it is desirable that the side walls can be solved in a simple manner from the ground, without the ease of disassembly of the frictional connection their ability to carry a heavy load suffers.
  • foldable boxes have a locking mechanism by means of which the erected walls are locked together, so that the unfolded box receives the required stability.
  • This locking mechanism should be as easy to operate and error-free without much effort. However, the possibility of incorrect operation should additionally be taken into account, that is, a force acts on the locking mechanism without being actuated. In this case, the locking mechanism should never be destroyed.
  • the EP 1 647 492 A1 shows a foldable box with stops on their long side walls. to limit a folding movement of the short side walls.
  • a foldable box having two paired longitudinal and lateral outer walls hinged with respect to the bottom of the box and allowing the outer walls to collapse inward. In the unfolded state, the four outer walls are mechanically connected or latched together to obtain a foldable box, which has a high stability.
  • each of the longitudinal outer walls has at each end a in the unfolded state in the direction of the transverse outer walls extending projection which limits the folding ability of the transverse outer walls to the outside, that has the effect of a stop.
  • the terminology on the longitudinal side should under no circumstances give the impression that in all embodiments, this projection should have the actually longer outer walls.
  • the shorter outer walls which are referred to below as transversely, have this projection, so that the terms on the longitudinal side and on the transverse side can be exchanged here as well as in the following.
  • Each of the transverse-side outer walls has a spring-tensioned locking mechanism arranged on the outer side of the transverse-side outer wall, which in the unfolded state has a latching element which is movable in a vertical direction and which can be latched to the projection of the longitudinal outer wall.
  • the locking element can thus engage directly in the projection or in an object firmly connected to the projection or latch with this.
  • the vertical movement of the locking element is achieved that the locking element can be moved almost force-free, that is, when opening the locking element or the latching only the spring force of the spring of the spring-biased locking mechanism must be overcome so as to easily to be able to solve the catch during normal operation.
  • the transverse outer wall is separated from the longitudinal outer wall, so that they can be folded down.
  • the unlocking in the vertical direction has over conventional solutions in which the latching or unlocking takes place in the lateral folding direction or in the horizontal direction, the advantage that the locking takes place in a direction in which the connection between the Side walls must absorb no force, so that no high force must be spent to lock the locking element or unlock.
  • the projection and / or the locking element in the unfolded state are additionally inclined contact surfaces with respect to the vertical direction such that the locking mechanism opens against its spring bias when an inwardly directed, acting on the transverse outer wall predetermined force is exceeded ,
  • the flanks of the locking lugs or the projection on which slide the locking element and the latching lug of the projection or the projection itself along each other are inclined relative to each other so that depends on the inclination in an action of a force from outside the foldable box on the transverse outer wall always a force component in the vertical direction, that is, against the spring bias acts on the locking element.
  • the predetermined force at which the emergency release occurs or at which the locking mechanism opens against spring preload can be set arbitrarily within wide limits.
  • the size of the predetermined force at which the lock automatically opens has no influence on the force to be exerted, which is required when the locking mechanism in normal operation, d. H. occurs by manually operating the locking element in the vertical direction.
  • the embodiments of the present invention thus allow both a comfortable and regular operation and additional protection against incorrect operation, without the parameters of one of the two operating methods - the regular and the wrong operation - would be interdependent.
  • embodiments of the foldable boxes according to the invention are even so robust to produce that the latch can be opened in continuous operation not only by conventional manual actuation of the locking element but also by hitting or kicking on the transverse outer wall without damaging the box or the latching mechanism occurs.
  • the easy disassembly of an outer wall from the bottom of a foldable box is achieved by using a special hinge arrangement comprising both a shaft located at the bottom of the outer wall and a cam disposed therein when unfolding the outer wall a frictional connection between the bottom and the outer wall is made.
  • a recess is provided in the floor or in a fixed outer wall area extending from the floor in a vertical upward direction (ie in the direction of the unfolded side wall), which may also be made in one piece with the floor. within which the shaft is located.
  • a contact surface is further arranged, which is to be understood as a surface which is arranged with respect to the ground in a known relative orientation.
  • the cam is, as it will be explained in more detail with reference to some of the following figures, or has such a three-dimensional contour that the cam, which is rigidly connected to the outer wall, comes into contact with the contact surface when the cam wall is opened, that is, it comes into contact with and is supported by this. This support causes a translational movement of the also rigidly connected to the outer wall shaft.
  • the guide opening is geometrically configured such that it has an opening section extending essentially in the vertical direction (that is, substantially perpendicular to the surface of the floor) and an approximately perpendicular, lateral opening section extending from the outside to the inside in the lateral direction. Both the opening portion and the lateral opening portion have a cross section large enough to move the shaft in the two portions.
  • the shaft is initially arranged in the folded state of the outer wall at the bottom of the opening portion of the guide opening and removed through the opening portion in the vertical direction upwards. Thus, the wave is not a disassembly of the outer wall in the folded state in the way.
  • the contact surface is attached in the bottom or in the upwardly extending from the bottom of the fixed outer wall area.
  • the abutment surface is formed by the outside wall or boundary surface of the cam opening.
  • the load bearing capacity of the connection thus formed is additionally increased by the fact that the cam opening also has a vertically extending opening section and a laterally extending lateral opening section, wherein the cam has an outer contour or is designed geometrically in such a way that which engages in the unfolded state, an element of the cam or a recess in the cam during the opening in the lateral opening portion of the cam opening.
  • This also prevents the cam from sliding up out of the cam opening due to the massive material of the bottom over the lateral opening portion of the cam opening.
  • the cam in the cam opening in the unfolded state can also take up additional weight or carry an additional load, which increases the stability or the load capacity of the foldable box in this embodiment.
  • the cam opening in the vertical direction has a cross section such that the cam can be removed in the folded state of the side wall upwards out of the cam opening, so that even in the embodiment in which the cam additional load can wear, the outer wall in the folded state can be removed without tools.
  • the geometry is selected such that both the cam opening and the guide opening extend outwardly in the lateral direction to a common outer wall, so that they have, in other words, in the lateral direction identical dimensions.
  • the cam opening or guide opening has dimensions which are slightly larger than the horizontal extent of the shaft and the horizontal extent of the cam, respectively, in order to provide a possible play-free connection between them allow the outer wall and the floor or the fixed outer wall portion of the soil.
  • the horizontal extent corresponds to the guide opening and the cam opening essentially the horizontal dimensions of the shaft or of the cam, wherein the horizontal extent of the openings is somewhat larger, for example by 0.5 mm or by 1 mm.
  • a foldable box which has outer walls, which are held in the unfolded state after unfolding, in which an automatic folding of the outer wall is thus prevented.
  • some embodiments of the invention are based on the above-described hinge arrangement with a shaft in a guide opening, but without the guide opening necessarily having to have an opening area suitable for removal in the vertical direction. All that is necessary is that the guide opening has the lateral opening section extending inwardly in the lateral direction from the outside of the fixed outer wall area, within which the shaft is displaceable.
  • cam which is arranged in the foot region of the outer wall, wherein the cam has a cam contour which is designed such that when erecting by the system of the cam contour on the contact surface already in the crossing of a critical angle, the shaft in the lateral opening portion is moved inwardly before the side wall is fully erected.
  • the contour of the cam is configured to exceed the critical angle when erecting the outer wall before the underside of the outer wall contacts the inner edge portion of the upwardly extending fixed outer wall portion of the floor during erecting. Because the shaft is already at the first contact with the bottom of the outer wall with the inner edge region at the inner position in the lateral opening portion, the shaft can absorb a substantially upward force.
  • the shaft can already absorb this force, upon further raising of the outer wall over the inner edge region by the action of the rigidly connected to the outer wall shaft (for example, attached to a foot of the outer wall spacer), the underside of the outer wall with a first contact force against pressed the inner edge region of the fixed outer wall portion. This is greater than a second contact force with which the underside of the outer wall in the erected vertical position, that is, after exceeding the inner edge region, is pressed by the action of the shaft against the upper side of the fixed outer wall region.
  • the functionality that the outer wall in the unfolded state remains independent can be achieved without, for example, in the prior art conventional clamping on moving parts, such as must be made to the waves of hinges, by otherwise inhibiting the movement a hinge is achieved.
  • Such clamps are - especially when using plastic parts - an unreasonable wear, so that the movement inhibition and thus the functionality of the sidewall over time automatically decreases.
  • the mechanism works substantially wear-free, since the movement of the shaft itself is completely wear-free within the lateral opening portion.
  • the force is generated by elastic tracking of the components involved without friction, so that with proper dimensioning of the force-absorbing component, such as the shaft connecting with the outer wall web or spacer a wear-free continuous operation is ensured.
  • At least one of the outer walls has a particularly stable structure with advantageous properties resulting from the fact that stable, spherical, with respect to an outside of the box convex wall areas are connected by means of webs and ribs.
  • a web arranged over a height of the outer wall and arranged on the outer side of the outer wall is arranged.
  • one or a plurality of ribs extends between the spherical wall portions, with the ribs extending from the rib to each of the spherical surface portions on both sides of the rib.
  • These embodiments of outer walls according to the invention therefore comprise spherical surfaces which are arranged adjacent to one another and which are connected to one another by means of an arrangement of ribs and webs between the respectively adjacent spherical surfaces in order to increase the connection stiffness of the outer wall.
  • spherical surfaces have the advantage that they are intrinsically torsionally rigid up to a certain size, which is caused by the curvature of the surface at the edge regions.
  • spherical surfaces are to be understood as such surfaces extending from a flat base surface in a predetermined direction raise, wherein the surface is not stepped in the contour of the base surface, but the contour s-shaped away with predetermined radii of the base surface.
  • a spherical surface region may also have a partial surface which is completely flat and parallel to a distance from the base surface, which is dependent on the S-shaped contour at the edge of the spherical surface.
  • a plurality of convex surface areas are used in a wall, which are interconnected by an array of ribs and perpendicular to the ribs, extending over the height of the outer wall webs to the inherently stable convex surface areas without high
  • material costs extremely torsionally stiff to connect together, so that results in a total of extremely robust structure with low wall thickness.
  • the ridges and the ribs are located exclusively on the outside of the outer wall so that the stiffening effects are achieved without compromising hygiene by allowing food debris to get caught in the sharp edges of the ribs and ridges inside the box , Further, in some embodiments of the present invention, all of the hinge assemblies that connect the outer wall to the bottom of the foldable box are located substantially at the areas where the lands are between the spherical surfaces.
  • the arrangement of the hinge elements thus produced produces a structure or an outer wall which has the greatest possible stability requirements, also with regard to the transmission of power to the ground, And at the same time requires only a thin, material-saving outer wall, which is also smooth on the inside and therefore easy to clean.
  • Fig. 1 shows a semi-perspective view of an embodiment of a foldable box.
  • a foldable box is to be understood as meaning a box or tray which is open in one direction (vertically upward) and which has a floor and four outer or side walls which are connected to the floor in this way in that they can be moved or opened and closed with respect to the floor.
  • the box has in the closed state, that is, when all four walls are folded on the ground, only a small height and is easy to transport.
  • the foldable box of Fig. 1 thus, it has a bottom 2, pairwise opposing transverse outer walls 4a and 4b, and also in pairs opposite longitudinal outer walls 6a and 6b.
  • longitudinal outer walls those outer walls are to be referred to, which have a greater extent than the transverse outer walls.
  • longitudinal side and transverse side is used only for identification of the outer walls described in each case.
  • the terms can also be reversed on the longitudinal side and transverse side, so that the features described for the longitudinal outer walls can also (at the same time) be implemented on the transverse side and, of course, on both side walls.
  • all of the features described below can be combined with each other as desired, so that some embodiments of inventive foldable boxes have only one of the features, while other embodiments may have all the features.
  • Fig. 1 a foldable box in the unfolded state, while the box is to be understood as being in the folded state when all the side walls are collapsed.
  • the vertical direction 8 is substantially perpendicular to the surface of the bottom 2, the relative position designations above and below being understood in this context to mean above a vertically remote from the ground position than below.
  • the relative position indication inside denotes a position which is closer to the volume enclosed by the box than a position which is marked with the term outside.
  • the height of the sidewalls is the extent in the in Fig. 1 illustrated unfolded state in the vertical direction 8, while the thickness or width is to be understood as the maximum extent between the inside and outside of the outer walls.
  • the directions laterally and horizontally are to be understood in each case relative to the outer wall just considered.
  • the horizontal direction is the direction along the largest longitudinal extent of the considered side wall, so that the horizontal direction with respect to the outer wall 6b, for example, as indicated by arrow 11 results.
  • the lateral direction designates the direction between the outside and the inside of the walls in the unfolded state, so that, for example, for the outer wall 6b, the lateral direction indicated by the reference numeral 12 results.
  • the corresponding application of these definitions on the transverse outer wall 4b leads to a horizontal direction 14 and to a lateral direction 15.
  • the lateral, vertical and horizontal directions define a substantially rectangular coordinate system with respect to each outer wall.
  • a bottom 2 which consists on the one hand of a flat, flat main body, and in addition on two opposite outer sides has a vertically extending from the bottom in the vertical direction extending outer wall portion 18.
  • This is for better representation in Fig. 1 hatched highlighted and may, for example, serve to accommodate or provide hinge elements and ensure that a pair of side walls in the closed state can come to rest on the other pair of side walls.
  • the vertically outwardly extending fixed outer wall portion is considered to belong to the ground, so that some of the discussed features can also be realized in the flat bottom portion.
  • Fig. 2 shows for re - illustration a view of the in Fig. 1 shown foldable box, in which the bottom 2, the longitudinal outer walls 6a and 6b and the transverse outer walls 4a and 4b are clearly visible. Furthermore, in Fig. 2 at least to recognize that the longitudinal side and the transverse side outer walls are latched together in the unfolded state at the edges abutting each other, so that the unfolded box reaches a high stability.
  • a latching element which is arranged on the transverse outer wall 4a, engages in the projection 22 and locks with it into a mechanically loadable connection in order to ensure the stability of the box to reach.
  • Fig. 3 shows a side view of an embodiment of a foldable box, in which some advantageous features of the outer wall 6b of this embodiment are clearly visible.
  • the outer wall 6b is characterized in that spherical surface areas, which are convex with respect to the outside of the foldable box, are combined with stiffening elements of ribs and webs such that a result is extremely stable outer wall, but at the same time on the inside in Is substantially smooth and has only a small thickness, so a small extent in the lateral direction.
  • the thickness in the lateral direction is not only a criterion with regard to the material and the weight to be used, but in particular also for the stack height to be achieved, ie the height of a box in the closed state, which essentially consists of the thickness of the bottom, the transverse outer walls and the longitudinal outer walls results.
  • the thinner a wall can be with given flexibility, that is, the better.
  • the outer wall consists of spherical outer wall surfaces 20a, 20b and 20c which are convex with respect to the outer side and which are connected to one another by means of an arrangement of ribs and struts.
  • the spherical wall areas are intrinsically stable due to their shape, as already explained above.
  • Fig. 3 shown is provided between the spherical wall portion 20 a and the spherical wall portion 20 b arranged on the outer side of the outer wall web 22 which extends over the height 24 of the outer wall, that extends in the vertical direction 8. This bridge leads to a high load capacity in the vertical direction.
  • the use of the web and rib arrangements connecting the spherical surface elements also makes it possible to perforate the spherical surface elements or to provide them with a plurality of openings in order to save material and to be able to clean the wall well.
  • the weakening of the structure of the spherical surface areas perforation can be accepted, since the use of webs and ribs between the spherical surface areas, the overall stability can still be maintained.
  • some optional webs are shown, which also extend over the spherical area itself and serve to increase the overall stability even further. However, these webs are optional, since in some embodiments already the combination of spherical surface areas and webs or the required stability can guarantee.
  • a further embodiment of the invention only the webs 22 and 30 between the spherical surface areas 20a, 20b, 20c.
  • hinge arrangements by means of which the outer wall is hingedly connected to the bottom 2 or with the fixed outer wall portion 18, only in those areas at the foot of the outer wall 6b (to the bottom 2 facing the end of the outer wall 6b) arranged by the webs extend to the foot of the outer wall. All of the hinging arrangements or hinge mechanisms 40a, 40b, 40c and 40d, which are only indicated here, are located in the in Fig. 3 and in Fig. 1 shown embodiments in the area of extending in the vertical direction 8 webs. This leads to an increased stability of the Overall construction, since the hinges must absorb the force acting in the vertical direction 8 when the box is loaded, so that it is of great advantage when the hinges are in the position of the webs, which also serve to load in the vertical direction.
  • a ridge capable of doing so is generally a material rising from the surface of the outer wall in the lateral direction and extending over the height of the outer wall.
  • the ribs also extend laterally out of the surface of the outer wall, with the ribs extending substantially along the horizontal orientation.
  • the ribs do not extend horizontally, but in a different orientation, but it should be ensured that at least one rib extending from the webs, also in another orientation, to the adjacent to the webs spherical surface areas.
  • Fig. 4 shows a view of another embodiment of a foldable box, which differs from the in Fig. 1 shown differs by the other dimensions.
  • the in Fig. 4 illustrated foldable box on a lower height, ie a smaller extension of the vertical direction 8. Since the other features of the foldable boxes in Fig. 1 and 4 Here, with respect to a description of the features, it will be referred to Fig. 1 Referenced, although at the lower level of in Fig. 4 In the box shown, the concept of the adjacent spherical surface areas, which can be realized by means of a web and at least one rib, which extends from the web to each of the adjacent spherical surface areas, such as Fig. 4 can be found.
  • Fig. 1 the concept of the adjacent spherical surface areas, which can be realized by means of a web and at least one rib, which extends from the web to each of the adjacent spherical surface areas, such as Fig. 4 can be found.
  • Fig. 1 the
  • FIG. 4 shows thus the great flexibility of the functional interaction of the spherical product areas and the connecting them struts and rib construction, which is readily adaptable to changing geometric boundary conditions.
  • Fig. 4 (as in Fig. 1 ) makes it possible to attach a handle opening 46 in the central area of the foldable box, at which the entire load is usually lifted during normal use of the box.
  • the use of spherical surface areas makes it possible to construct a spherical surface area which the grip area dispenses with and is located below the grip area, so that even in the area of the grip there is no need to dispense with a spherical surface area which increases the stability.
  • Fig. 4 shows thus the great flexibility of the functional interaction of the spherical product areas and the connecting them struts and rib construction, which is readily adaptable to changing geometric boundary conditions.
  • a handle opening 46 in the central area of the foldable box, at which the entire load is usually lifted during normal use of the box.
  • the handle is connected to the underlying spherical surface area by means of vertically extending webs, which leads to increase the stability in the direction of force. Furthermore, an outer contour of the handle is connected via additional ribs directly to the webs arranged between the spherical surface areas 22 and 30, resulting in the grip of the grip area 46, which actually weakens the stability of the construction, does not impair the overall stability since the force acting on the grip can be transferred directly to the adjacent spherical surface areas.
  • Fig. 5 and 6 show enlarged detail of a arranged in the foot region of the outer wall 6b shaft 50 and arranged in the foot area cam 52 of the hinge assembly 40c of the foldable box 1 from different perspectives, wherein Fig. 5 a view from the inside, that is in the lateral direction from the inside to the outside and Fig. 6 this corresponds to corresponding view from outside to inside.
  • the shaft 50 is substantially cylindrical in this embodiment and extends in the horizontal direction.
  • the cross section of the shaft can also be any other than circular, such as oval, square, cuboid or triangular.
  • the cam is substantially parallelepiped-shaped, with the cam contour deviating from the cuboid shape in some places in order to achieve the various functionalities of the cam.
  • FIG. 7A and 7B show, from also different perspectives, a guide opening 54 and a cam opening 56 which are located within the fixed outer wall area 18 of the floor 2 and in which the shaft 50 and the cam 52 are arranged.
  • Fig. 7A shows a view from inside to outside
  • Fig. 7B shows a view from outside to inside.
  • the Fig. 5 to 7B show the features of the hinge assembly in disassembled state
  • FIG. 8 a plan view of the hinge assembly in the folded or folded state of the outer wall 6b, while the Figs. 9A to 11B show a sectional view through the hinge assembly, which are shown during different phases of the unfolding of the outer wall 6b.
  • the Fig. 9A . 10A and 11A each show a section on the section line 60 through the shaft 50.
  • the Fig. 9B . 10B and 11B show a section through the cam 52 along the section line 62 of FIG Fig. 8 , The mode of operation of the hinge arrangement will therefore be described below with reference to FIG Fig. 5 to 11B described.
  • the shaft 50 is disposed in the guide hole 54 and the cam 52 is disposed in the cam opening 56.
  • the guide opening 54 is divided into two functionally different regions, namely an opening section 54a extending substantially in the vertical direction 8 and a lateral section extending substantially in a lateral direction 12 from the outside of the stationary outer wall section 18 and the guide opening 54, respectively Opening portion 54b.
  • the lateral opening portion 54b is located at the bottom of the guide opening 54, although this is not to be understood as limiting. Rather, in other exemplary embodiments of the invention, the lateral opening section can also be arranged further upwards in the vertical direction.
  • the cam opening 56 has a substantially vertically extending opening portion 56 a.
  • the cam hole 56 also has a lateral opening portion 56b extending inward in the lateral direction from the outside and the outside boundary of the cam hole 56, respectively.
  • the different opening portions are best in the sectional view of Figs. 9A and 9B identifiable, where they are also provided with the corresponding reference numerals. In order not to worsen the clarity of the representation of the operation, was omitted in the other figures, to provide the opening portions with the respective reference numerals.
  • the vertically extending opening portion 54a of the guide opening 54 has a cross-section which is large enough to remove the shaft 50 in the folded state of the side wall 6b in a vertical upward direction from the guide opening 54 can.
  • the shaft 50 is rigidly connected via a spacer 64 to the foot 66, that is to say to the end of the outer wall 6b lying downwards in the vertical direction 8.
  • the shaft 50 is rotated relative to the Fühngsö réelle 54.
  • the cam 52 fixedly connected to the foot 66 of the outer wall 6b is rotated relative to the cam opening 56.
  • the 7A to 11B described embodiment of the present invention also has the substantially vertically extending opening portion 56 a of the cam opening 56 has a cross-section which is large enough that the cam 52 in the folded state from the cam opening 56 can be guided vertically upwards.
  • the side wall 6b is, as it is the half-view of the outer wall 6b in Fig. 8 can be seen, connected to the fixed outer wall portion 18 via four shafts and two cams of the type described above.
  • both the guide opening 54 and the cam opening each have an inside breakthrough 70 and 72 in the inner boundary wall of the openings 54 and 56, within which the spacer 64 of the shaft or the attachment of the cam 52 with the foot 66 of the side wall 6b serving part of the cam 52 is movable.
  • the outer wall or outer side 76 of the cam opening 56 then acts when erecting the outer wall 6b as a contact surface on the fixed outer wall portion 18, to which the cam 52 when erecting the outer wall 6b is supported in a sense.
  • an inward force acts on the sidewall 6b immediately after the start of erection, causing the shaft 50 to move inwardly in the lateral opening portion 54b so as to move is already within a predetermined limit angle within the lateral opening portion 54b (at an inside end position in the lateral opening portion 54b), as shown in FIG Fig. 10A is shown.
  • the lateral opening portion 54b is, as for example Fig.
  • the cam 52 has a cam contour that is designed such that the cam contour during the erection of the outer wall in such a device to a contact surface 56 that the shaft 50 is moved in the lateral opening portion 54b inward.
  • the shape of the contact surface plays no role, the planar contact surface shown in the figures is to be understood merely as an example of any geometry of the contact surface, which causes a force is exerted on the cam.
  • the abutment surface could also be inclined with respect to the vertical direction 8, which, in combination with a cam contour that is essentially circular with respect to the abutment surface 56, also results in that the shaft is moved inward during alignment.
  • This embodiment also makes it clear that the geometry of the cam can be almost arbitrary, as long as the cam contour is formed such that the cam contour comes into abutment with the abutment surface in such a way that the shaft 50 is moved inwards.
  • Fig. 11A shown fully unfolded state is thus the shaft 50 in the lateral opening portion 54b of the guide hole 54, so that now the outer wall 6b and the bottom are positively connected to each other.
  • the exemplary embodiment shown here additionally has two projections 80a and 80b, which extend in the unfolded state of the outer wall 6b in the lateral direction to the outer-side edge of the guide opening 54.
  • These optional protrusions 80a and 80b additionally prevent the shaft 50 from undesirably being able to be displaced out of position by elastic deformation, for example, when the outer wall 6b is in the unfolded state.
  • the exemplary embodiment illustrated here also has a further optional configuration or functionality of the cam 52.
  • the cam contour at the position where the lateral opening portion 56b of the cam hole 56 is bounded upward by material of the fixed outer wall portion 18 (at the positions of the overhangs 82a and 82b) is L-shaped, so that the Fig. 10B and 11B can be seen, the cam 52 in the lateral opening portion 56 b of Cam opening engages.
  • a force is transferred from the outer wall 6b to the bottom 2 in the erected state by the cam 52, which can additionally increase the stability of the overall construction, if this optional feature is implemented.
  • a cam 52 with a contact surface 76 and a shaft 50 which is arranged in a guide opening 54, a hinge assembly which is removable in the folded state and in the unfolded state of the outer wall 6b in is able to transfer the required forces to the ground 2.
  • FIGS Fig. 6 to 11 B Another embodiment of the present invention will also be described below with reference to FIGS Fig. 6 to 11 B discussed.
  • This embodiment makes it possible to connect an outer wall by means of a hinge arrangement with a bottom 2 of a foldable box 1 such that the outer wall 6b is kept in an upright position after erecting itself. Since it is not primarily important in this embodiment that the guide opening 54 and the cam opening 56 are configured in the vertical direction such that the cam 52 and shaft 50 are removable, this feature is optional in the embodiments of the present invention now described. In the embodiments of the present invention which allow a self-standing wall, it is necessary that the cam contour of the cam 52 is designed such that, as it is based on Fig.
  • the shaft 50 can already absorb a force acting in the vertical direction before it, so that it is possible to dimension the distance of the inner edge region 90 to the shaft 50 such that when moving the outer wall 6b over the edge 90, so after exceeding the Limit angle 68 is pressed by the action of the shaft 50, the bottom 66 of the outer wall 6b with a pressing force against the inner edge portion 90 which is greater than a second contact force with which the bottom 66 of the outer wall 6b in the erected vertical position by the effect the shaft 50 is pressed against the top of the fixed outer wall portion 18.
  • the inside of the cam contour may be configured such that when exceeding the edge 90, the contact pressure is achieved by the action of the cam 52, for example, if this already in abutment with the cam opening 56 upwardly bounding material 82 b of the cam opening 56 is located.
  • the unfolded wall is held in the unfolded state when the cam contour is configured such that when the outer wall 6b is erected, the cam contour comes into contact with the guide surface 76 such that when a critical angle 68 is exceeded, the shaft 50 moves inwardly into the lateral opening portion 54b is moved, so that after exceeding the critical angle 68 by the action of the shaft 50 or the cam 52, a bottom 66 of the outer wall 6b is pressed with a first contact force against an inner edge portion 90 of the fixed outer wall portion 18.
  • This first pressing force is greater than a second pressing force with which the underside 66 of the outer wall 6b is pressed in the raised position by the action of the shaft 50 or the cam 52 in the top of the fixed outer wall portion 18.
  • the outer wall region whose resistance is to be overcome when unfolding, does not have to be formed by the entire length of the inner edge 90 of the fixed outer wall region 18. Rather, it is also possible, for example, to influence the required force, to bring only geometrically delimited areas of the inner edge 90 when opening in abutment with the outer wall 6b.
  • inwardly extending projections can be formed on the inner edge 90 of the outer wall, so that the outer wall 6b only has to overcome the resistance caused by these projections. This can for example serve to adjust the force that is required when erecting the outer wall 6b, and thus to adapt it to the requirements of the user.
  • the center of the shaft 50 in the lateral direction 12, after moving the shaft 50 inward, is further toward the outside of the foldable box 1 than the inboard edge 90, resulting in the distance between interior Edge 90 and shaft 50 is greater than the distance between the top of the fixed outer wall portion 18 and shaft 50.
  • This automatically causes the balance of forces described above. Since in all embodiments of the invention, the outer wall 6b is held up by elastic deformation of the material and not by friction in the form of a braked shaft or the like, as is usual, can be provided by the embodiments of the invention, a mechanism that without wear to it leads that unfolded outer walls 6b remain automatically in the unfolded state.
  • Fig. 12 and 13A 13B is a further embodiment of the present invention is described, having a locking mechanism 100, which can be operated on the one hand extremely effortless or extremely smooth and robust and on the other hand additionally a Notentiiegelungsfunktion gleich that ensures that in case of incorrect operation of the locking mechanism not destroyed, but opens automatically.
  • the Fig. 12 shows a side view of in Fig. 1 shown foldable box.
  • the transverse outer wall 4b shown in the plan view has a spring-biased locking mechanism 100 which has a latching element 100 connected to the outer walls 6a and 6b, or protrusions 22 extending from the longitudinal outer walls 6a and 6b towards the transverse outer wall 4b extend, can lock.
  • the latching element can be mechanically detachably connected to the projections, so that the longitudinal side walls 6a and 6b and the transverse side wall 4b mechanically rigid, but releasably connected to each other to obtain a stable unfolded box 1.
  • Figs. 13A and 13B shows a sectional view along the section line 102 of FIG Fig. 12 , where in the Figs. 13A and 13B only that portion 104, in which the latching element is latched to the projection 22, is shown enlarged.
  • the Figs. 13A and 13B Here, by way of example, one of several possible embodiments of the latching element 100 or of the projection 22 is shown. With the longitudinal side walls 6a and 6b already unfolded, the projection 22 extends in the direction of the transverse outer wall 4b.
  • the projection 22 has an inwardly extending latching hook 106 which is essentially parallel to the longitudinal outer wall 6a and comprises an inwardly directed first contact surface 108 and an outwardly directed second contact surface 110.
  • the latching element 100 which also has a first inwardly directed first contact surface 112 and an outwardly directed second contact surface 114, in contact with the inwardly directed contact surface 108 of the latching hook 106. Due to the inclination of the inwardly directed contact surface 108 of the latching hook 106th the locking element 100 is moved in the vertical direction 8 upwards and can in one in the FIGS. 13A and 13B Lock position shown in the latch hook 106 engage.
  • the locking element 100 and the spring-biased locking mechanism are integrally formed in the embodiment described herein and therefore provided with the same reference numerals.
  • the spring bias is achieved in the embodiment of the invention discussed herein by integrally formed with the locking mechanism spring elements 120a and 120b, which exert the spring force on the locking mechanism 100 due to their elasticity and shape.
  • the locking element 100 is in the locked position in the latching nose 106, the longitudinal side walls 6a and 6b and the transverse side wall 4b are mechanically locked together and connected, so that the box has a high stability.
  • the lock can thereby be released in a simple manner by actuating the locking mechanism 100 in a vertical upward direction, due to the shape of the locking mechanism, a handle portion 126 which is disposed below a support opening 128 in a simple manner and even simultaneously can happen with the lifting of the box.
  • the outwardly directed second contact surface 110 of the latching hook 106 is inclined relative to the vertical direction 8 and / or the inwardly directed first contact surface 112 of the latching element 100 is inclined.
  • the average inclination of the inwardly directed first contact surface 108 of the latching hook is greater than the average inclination of the second contact surface 110 of the latching hook 106.
  • the spring-biased locking mechanism automatically opens without being destroyed when a predetermined force is exceeded.
  • This force can be adjusted as desired by adjusting the relative inclination between the outwardly directed second contact surface 110 of the latching hook 106 and the inwardly directed first contact surface 112 of the latching element 100, taking into account the spring preload.
  • the locking mechanism is destroyed in a faulty operation, although this is designed so that it locks perpendicular to the direction of movement.
  • alternative embodiments of the present invention can also lock directly to the projection 22 and a suitable opening in the projection 22 itself.
  • the decisive factor is merely that the projection 22 or an element connected thereto and or the locking element 100 in the unfolded state relative to the vertical direction 8 such inclined contact surfaces 110 and 112, that the locking mechanism 100 against the spring bias when crossing an inwardly directed on the transverse outer wall 4b predetermined force opens.
  • each spring-biased locking mechanism 100 and the detent element in the in FIG. 12 described embodiment are integrally formed, it is of course also possible to form these components in several pieces or run separately, for example, the locking mechanism for each page. Even in these cases, the non-destructive emergency release function can be maintained.
  • foldable boxes used for transporting vegetables or the like.
  • foldable boxes according to the invention are not limited to this field of application. Rather, there is also the possibility to accomplish other transport tasks, such as the transport of bottles or the like with similar foldable boxes, in particular, the contour of the bottom mold or the inside outer walls may change to better adapted to the specific task.
  • plastic, metal or wood can be used to produce inventive foldable boxes. Due to the particularly robust embodiment can It also heavy loads are transported safely and reliably, as is the case for example in catering for the transport of crockery or cutlery or the like. Since the use of one of the embodiments described above leads to foldable boxes which are hygienic, easy to clean, extremely stable, compact and easy to fold and extremely easy to handle, there are no limits to the field of application of foldable boxes according to the invention, since these are due to the large number of positive properties suitable for almost any use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Claims (9)

  1. Caisse pliable (1) avec un fond (2) et chaque fois deux parois extérieures rabattables par rapport au fond (2) du côté longitudinal (6a, 6b) et du côté transversal (4a, 4b), opposées par paire,
    chacune des parois extérieures du côté longitudinal (6a, 6b) présentant, à au moins une extrémité du côté transversal, une saillie (22) s'étendant, à l'état replié vers le haut, en direction des parois latérales du côté transversal (4a, 4b) qui limite l'aptitude au rabattement vers l'extérieur des parois extérieures du côté transversal (4a, 4b);
    caractérisée par le fait que
    chacune des parois extérieures du côté transversal (4a, 4b) comporte un mécanisme de verrouillage à prétension de ressort disposé du côté extérieur de la paroi extérieure du côté transversal (4a, 4b) qui présente, à l'état rabattu vers le haut, un élément d'encliquetage (100) déplaçable dans la direction verticale (8) par rapport à la surface du fond (2), lequel peut s'encliqueter avec la saillie (22) de la paroi extérieure du côté longitudinal (6a, 6b), la saillie (22) et/ou l'élément d'encliquetage (100) présentant des surfaces de contact (110, 112) qui, à l'état rabattu vers le haut, sont inclinées par rapport à la direction verticale (8) de sorte que le mécanisme de verrouillage s'ouvre, en cas de dépassement d'une force déterminée orientée vers l'intérieur et agissant sur la paroi extérieure du côté transversal (4b), à l'encontre de sa prétension de ressort.
  2. Caisse pliable (1) selon la revendication 1, dans laquelle est placé, sur la saillie (22) des parois extérieures longitudinales (6a, 6b), un crochet d'encliquetage (106) s'étendant sensiblement parallèle aux parois extérieures longitudinales (6a, 6b) et qui présente une première surface de contact (108) orientée vers l'intérieur et une deuxième surface de contact (110) orientée vers l'extérieur.
  3. Caisse pliable (1) selon la revendication 1 ou 2, dans lequel l'élément d'encliquetage (100) peut s'encliqueter avec le crochet d'encliquetage (106) et l'élément d'encliquetage (100) présente une première surface de contact (112) orientée vers l'intérieur et une deuxième surface de contact (114) orientée vers l'extérieur.
  4. Caisse pliable (1) selon la revendication 2 ou 3, dans laquelle un angle d'inclinaison moyen entre la première surface de contact (108) du crochet d'encliquetage (106) et la direction verticale (8) est plus grand qu'un angle d'inclinaison moyen entre la deuxième surface de contact (110) du crochet d'encliquetage (106) et la direction verticale (8).
  5. Caisse pliable (1) selon la revendication 3 ou 4, dans laquelle un angle d'inclinaison moyen entre la première surface de contact (112) de l'élément d'encliquetage (100) et la direction verticale (8) est plus petit qu'un angle d'inclinaison moyen entre la deuxième surface de contact (114) de l'élément d'encliquetage (100) et la direction verticale (8).
  6. Caisse pliable (1) selon l'une des revendications précédentes, dans laquelle l'élément d'encliquetage (100) et le mécanisme de verrouillage sont réalisés d'une seule pièce et s'étendent sur toute la largeur de la paroi extérieure transversale (4b).
  7. Caisse pliable (1) selon la revendication 6, dans laquelle le mécanisme de verrouillage (100) présente, dans une zone centrale de la paroi extérieure transversale (4b), une zone de poignée actionnable manuellement (126), de sorte que, en cas d'actionnement orienté verticalement du mécanisme de verrouillage (100) dans la zone de poignée (126), l'élément d'encliquetage (100) soit déverrouillé des deux côtés de la paroi extérieure transversale.
  8. Caisse pliable (1) selon la revendication 4, dans laquelle l'angle d'inclinaison moyen entre la deuxième surface de contact (110) du crochet d'encliquetage (106) et la direction verticale (8) est réalisé de sorte que, en cas de dépassement de la force prédéterminée, l'élément d'encliquetage (100) soit déplacé par une composante de force agissant vers le haut dans la direction verticale (8) à l'encontre de la prétension de ressort et qu'une composante de force agissant perpendiculairement à cette dernière en direction du crochet d'encliquetage (106) n'entraîne pas de déformation inélastique du crochet d'encliquetage (106) ou de l'élément d'encliquetage (100).
  9. Caisse pliable (1) selon la revendication 3, dans laquelle un angle d'inclinaison moyen entre la première surface de contact (112) de l'élément d'encliquetage (100) et la direction verticale (8) est réalisé de sorte que, en cas de dépassement de la force prédéterminée, l'élément d'encliquetage (100) soit déplacé à l'encontre de la prétension de ressort par une composante de force agissant dans la direction verticale (8) vers le haut et qu'une composante de force agissant perpendiculairement à cette dernière en direction du crochet d'encliquetage (106) n'entraîne pas de déformation inélastique du crochet d'encliquetage (106) ou de l'élément d'encliquetage (100).
EP10721724.2A 2009-04-15 2010-04-14 Caisse pourvue de parois latérales pliables et de mécanismes de verrouillage avec protection contre les surcharges Active EP2419344B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10721724.2A EP2419344B1 (fr) 2009-04-15 2010-04-14 Caisse pourvue de parois latérales pliables et de mécanismes de verrouillage avec protection contre les surcharges
SI201030321T SI2419344T1 (sl) 2009-04-15 2010-04-14 Zaboj z zgibnimi stranskimi stenami in zapahnilnim mehanizmom z zaščito pred preobremenitvijo
PL10721724T PL2419344T3 (pl) 2009-04-15 2010-04-14 Skrzynka ze składanymi ściankami bocznymi oraz zatrzaskiem zabezpieczonym przed przeładowaniem

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
PCT/EP2009/002760 WO2010118758A1 (fr) 2009-04-15 2009-04-15 Réceptacle à paroi latérale repliable
DE102009034430 2009-07-23
DE102009049184A DE102009049184A1 (de) 2009-04-15 2009-10-13 Kiste mit faltbaren Seitenwänden und Verriegelungsmechanismen mit Überlastschutz
EP10721724.2A EP2419344B1 (fr) 2009-04-15 2010-04-14 Caisse pourvue de parois latérales pliables et de mécanismes de verrouillage avec protection contre les surcharges
PCT/EP2010/054904 WO2010119073A1 (fr) 2009-04-15 2010-04-14 Caisse pourvue de parois latérales pliables et de mécanismes de verrouillage avec protection contre les surcharges

Publications (2)

Publication Number Publication Date
EP2419344A1 EP2419344A1 (fr) 2012-02-22
EP2419344B1 true EP2419344B1 (fr) 2013-06-05

Family

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Application Number Title Priority Date Filing Date
EP10721724.2A Active EP2419344B1 (fr) 2009-04-15 2010-04-14 Caisse pourvue de parois latérales pliables et de mécanismes de verrouillage avec protection contre les surcharges

Country Status (3)

Country Link
EP (1) EP2419344B1 (fr)
PL (1) PL2419344T3 (fr)
SI (1) SI2419344T1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3118951B1 (fr) 2021-01-19 2023-07-28 Thegreenflux Conteneur pliable notamment pour le transport de fruits et légumes

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PL2419344T3 (pl) 2013-10-31
SI2419344T1 (sl) 2013-10-30
EP2419344A1 (fr) 2012-02-22

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