Classifications

• • 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
  • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
  • B65D65/38—Packaging materials of special type or form
  • B65D65/44—Applications of resilient shock-absorbing materials, e.g. foamed plastics material, honeycomb material
• • 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
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
  • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents

Definitions

• TITLE Wedging element for wedging and protecting a product to be packaged, and process for manufacturing such wedging element
• the present invention relates to the field of wedging elements configured to wedge and protect a product to be packaged in a package.
• wedging members from cellulose-based material, and more particularly from honeycomb cardboard.
• honeycomb cardboard for the manufacture of wedging members of significant thicknesses, it is then necessary to stack several layers of honeycomb cardboard on top of each other and to assemble them to each other by gluing.
• Such a manufacturing process requires immobilization of each wedging member manufactured for a predetermined period in order to ensure solidification of the glue used, which increases the manufacturing costs of wedging members of significant thicknesses.
• the adhesives used are often hot-melt adhesives which generate waste in the cardboard recycling chain forming such wedging members.
• the present invention aims to remedy these drawbacks.
• the technical problem underlying the invention consists in particular in providing a wedging member which is of simple and economical structure, while having a very high rate of recyclability.
• the subject of the invention is a wedging element configured to wedge and protect a product to be packaged in a packaging, the wedging element comprising at least: - a first wedging layer made at least in part of a cellulose-based material, the first wedging layer comprising an internal honeycomb structure and first and second outer covering layers arranged on either side of the internal honeycomb structure , the first wedging layer comprising at least one assembly housing opening into an outer face of the first outer covering layer and comprising at least a first housing part delimited by the first outer covering layer and a second housing part delimited by the internal alveolar structure, and
• the first and second wedging layers being stacked on top of each other, the second wedging layer comprising at least one assembly tongue which is at least partially received in the second housing part of the at least assembly housing so as to assemble the first and second wedging layers to one another.
• Such a configuration of the wedging member according to the present invention makes it possible to easily assemble together several wedging layers, at least one of which is made at least in part from a cellulose-based material, without requiring on the one hand the use of glue and/or of additional assembly and on the other hand the use of complex and expensive assembly equipment, which substantially reduces the manufacturing costs of such a wedging member and gives the latter a very high rate of recyclability.
• the wedging element may also have one or more of the following characteristics, taken alone or in combination.
• the at least one assembly tab has a maximum transverse dimension greater than a maximum transverse dimension of the at least one assembly housing.
• the second wedging layer is made at least in part of a cellulose-based material.
• the at least one assembly housing has a central longitudinal axis.
• the central longitudinal axis extends substantially perpendicular to the first and second outer cover layers.
• the at least one assembly housing has a cross section of polygonal shape with N sides, N being an integer greater than or equal to 3.
• cross section of the at least one assembly housing, a section which cuts perpendicularly the central longitudinal axis of the at least one assembly housing.
• the at least one assembly housing has a cross section of polygonal shape with 4 sides, that is to say of quadrilateral shape, and for example square or rectangular .
• a ratio of the cross section of the at least one assembly housing to the cross section of each of the cells of the internal honeycomb structure is between 0.8 and 1 .2, and for example between 0.9 and 1.1.
• the at least one assembly tab has a maximum width greater than the width of the largest side of the cross section of the at least one assembly housing.
• the at least one assembly tongue has a maximum width greater than the width of the widest of the internal faces of the at least one assembly housing.
• the at least one assembly tab has a width which varies, and for example which increases, between a proximal edge of the at least one assembly tab which is connected to a main part of the second wedging layer, and a distal edge of the at least one assembly tab.
• the at least one assembly housing has a depth greater than the width of the largest side of the cross section of the at least one assembly housing.
• the at least one assembly housing has a depth greater than the width of the widest of the internal faces of the at least one assembly housing.
• the at least one assembly tab has a polygonal shape, and for example quadrilateral, such as trapezoidal.
• the at least one assembly tab comprises a central part connected to a main part of the second wedging layer, and two lateral assembly parts arranged on either side. other of the central part, the two lateral assembly parts being configured to cooperate with internal walls of the internal honeycomb structure which delimit at least in part the at least one housing assembly.
• the second wedging layer comprises a secondary internal honeycomb structure and first and second secondary outer covering layers which are arranged on either side of the secondary internal honeycomb structure, the at least one assembly tab being obtained by cutting out the first secondary outer covering layer of the second wedging layer.
• the at least one assembly housing is blind, that is to say has a depth less than the thickness of the first wedging layer.
• the at least one assembly housing is through and also opens into an outer face of the second outer covering layer.
• the second secondary outer covering layer of the second wedging layer comprises at least one passage opening opening into at least one cell of the secondary internal cellular structure and being located at least partly opposite the at least one assembly tab.
• the internal honeycomb structure of the first wedging layer is of the honeycomb type.
• the secondary internal honeycomb structure of the second wedging layer is of the honeycomb type.
• the internal honeycomb structure and/or the first and second external covering layers of the first wedging layer are formed from cardboard.
• the secondary internal honeycomb structure and/or the first and second secondary external covering layers of the second wedging layer are formed from cardboard.
• the first wedging layer is made of honeycomb cardboard.
• the second wedging layer is made of honeycomb cardboard.
• each cell of the internal honeycomb structure of the first wedging layer has a hexagonal shape.
• each cell of the secondary internal cellular structure of the second wedging layer has a hexagonal shape.
• the second wedging layer is made of corrugated cardboard or is obtained by molding or extruding cellulose fibers.
• the second wedging layer is made of plastic material, and for example of bio-sourced or recycled plastic material.
• the plastic material is biodegradable.
• At least one of the first and second wedging layers comprises a receiving housing configured to at least partially house the product to be packaged.
• the product to be packaged is a household appliance, and for example a household appliance, such as an electric cooking appliance, a household cleaning appliance (for example steam or suction), a laundry treatment appliance (such as a steaming and/or ironing appliance) or even a hairdressing appliance.
• a household appliance such as an electric cooking appliance, a household cleaning appliance (for example steam or suction), a laundry treatment appliance (such as a steaming and/or ironing appliance) or even a hairdressing appliance.
• the product to be packaged can also be a fragile product of any type, such as a computer or a screen.
• the first wedging layer comprises several assembly housings, for example between 2 and 20, each opening into an outer face of the first outer covering layer and each comprising at least a first housing part delimited by the first outer covering layer and a second housing part delimited by the internal honeycomb structure.
• the second wedging layer comprises several assembly tabs, for example between 2 and 20, each having a maximum transverse dimension greater than a maximum transverse dimension of a housing of respective assembly, each assembly tongue being at least partially received in the second housing part of the respective assembly housing so as to assemble the first and second wedging layers together.
• the wedging element further comprises a protective layer attached to an outer face of the second wedging layer which is located opposite the first wedging layer.
• the protective layer can for example be made of a non-woven material, such as a non-woven textile, and for example of felt. The presence of such a protective layer makes it possible to avoid any risk of the product to be packaged being scratched by the second wedging layer.
• the present invention further relates to a manufacturing process for manufacturing a wedging element configured to wedge and protect a product to be packaged in a packaging, the manufacturing process comprising the following steps:
• first wedging layer made at least in part of a cellulose-based material, the first wedging layer comprising an internal cellular structure and first and second external covering layers arranged on either side of the internal alveolar structure
• a second wedging layer for example made at least in part of a cellulose-based material
• the at least one assembly housing opening into an outer face of the first outer covering layer and comprising at least one at least a first housing part delimited by the first outer covering layer and a second housing part delimited by the internal honeycomb structure,
• the at least one assembly tab formed has a maximum transverse dimension greater than a maximum transverse dimension of the at least one assembly housing.
• the assembly step is carried out using a punching tool configured to deform and introduce the at least one assembly tongue at least partially in the second housing part of the at least assembly housing.
• the assembly step comprises a step of moving the punching tool in the direction of the first wedging layer and in a direction of movement which is substantially perpendicular to extension planes of the first and second wedging layers.
• the punching tool used during the assembly step comprises a punching tip comprising a rounded free end.
• the punching tool used during the assembly step comprises a guide part configured to cooperate with the at least one assembly housing during the introduction of the at least one assembly tab into the at least one assembly housing.
• the guide part has a cross section substantially complementary to the cross section of the at least one assembly housing.
• the second wedging layer provided comprises a secondary internal alveolar structure, and first and second secondary external covering layers which are arranged on either side of the structure. internal secondary alveolar, the at least one assembly tab formed being obtained by cutting the first secondary external covering layer of the second wedging layer.
• the latter comprises a step of cutting the second secondary outer covering layer of the second wedging layer so as to form at least one passage orifice in the second layer of secondary external covering, the at least one passage orifice opening out into at least one cell of the secondary internal cellular structure and being located at least in part facing the at least one assembly tab.
• the assembly step comprises, prior to the step of deforming the at least one assembly tab, a step of moving the punching tool through the at least one passage orifice and the cell into which the at least one passage orifice opens.
• the assembly step comprises the following steps: introduction, into the at least one assembly housing, of the cut-out part of the second outer covering layer secondary; and retaining the at least one assembly tab in the at least one assembly housing by the cut-out part introduced into the at least one assembly housing.
• the at least one passage orifice has a shape substantially identical to that of the at least one assembly tab.
• the cut-out part of the second secondary outer covering layer has a shape substantially identical to that of the at least one assembly tongue.
• Figure 1 is a partial perspective view from above of a wedging element according to a first embodiment of the invention
• Figure 2 is a top view of a first wedging layer of the wedging element of Figure 1;
• Figure 3 is a top view of a second wedging layer of the wedging element of Figure 1;
• Figure 4 is a bottom view of the second wedging layer of Figure 3;
• Figure 5 is a partial top view of the wedging element of Figure 1;
• Figure 6 is a sectional view along line 6-6 of Figure 5;
• Figure 7 is a sectional view along line 7-7 of Figure 5;
• Figure 8 is a perspective view from below of a punching tool for manufacturing the wedging element of Figure 1;
• Figure 9 is a schematic sectional view of a wedging element according to a second embodiment of the invention.
• Figure 10 is a schematic sectional view of a wedging element according to a third embodiment of the invention.
• Figure 11 is a schematic sectional view of a wedging element according to a fourth embodiment of the invention.
• Figure 12 is a schematic sectional view of a wedging element according to a fifth embodiment of the invention.
• Figures 1 to 7 show a wedging element 2 configured to wedge and protect a product to be packaged in a package.
• the product to be packaged can for example be a household appliance, and for example a household appliance, such as an electric cooking appliance, a household cleaning appliance (for example steam or vacuum), a laundry treatment appliance (such as a steaming and/or ironing device) or even a hairdressing device.
• the product to be packaged can also be a fragile product of any type, such as a computer or a screen.
• the wedging element 2 comprises a first wedging layer 3 made of honeycomb cardboard.
• the first wedging layer 3 more particularly comprises an internal honeycomb structure 4, of the honeycomb type, and first and second outer covering layers 5, 6 arranged on either side of the internal honeycomb structure 4.
• each cell of the internal honeycomb structure 4 has a hexagonal shape.
• the first wedging layer 3 further comprises several assembly housings 7 each opening into an outer face of the first outer covering layer 5.
• the number of assembly housings 7 may for example be between 2 and 20
• the first wedging layer 3 comprises four assembly housings 7 each disposed near a respective corner of the first outer covering layer 5.
• the housings of assembly 7 could be arranged at other locations of the first wedging layer 3.
• each assembly housing 7 has a central longitudinal axis which extends perpendicularly to the first and second outer covering layers 5, 6.
• each assembly housing 7 comprises a first housing part 7.1 delimited by the first outer covering layer 5, and a second housing part 7.2 delimited by the internal honeycomb structure 4.
• Each assembly housing 7 has a cross section of polygonal shape with N sides, N being an integer greater than or equal to 3. According to the embodiment shown in Figures 1 to 7, each assembly housing 7 has a cross section of quadrilateral shape, and more particularly a cross section of square or rectangular shape.
• the cross section of each assembly housing 7 is square in shape, and each side of the cross section of each assembly housing 7 has a length of between 10 and 20 mm and for example approximately 13 mm. .
• each assembly housing 7 has a depth greater than the width of each of the sides of the cross section of said assembly housing 7, and therefore greater than the width of each of the internal faces of said housing.
• assembly 7. Such a depth can for example be approximately 15 mm.
• each assembly housing 7 is blind, that is to say has a depth less than the thickness of the first wedging layer 3.
• each assembly housing 7 could pass through, and therefore also open into an outer face of the second outer covering layer 6.
• the wedging element 2 further comprises a second wedging layer 8 made of a cellulose-based material.
• the first and second wedging layers 3, 8 are stacked on top of each other and are joined together.
• the second wedging layer 8 is made of honeycomb cardboard, and more particularly comprises a secondary honeycomb internal structure 9, of the honeycomb type, and first and second secondary outer covering layers 11, 12 which are arranged on either side of the secondary internal honeycomb structure 9.
• each cell of the secondary internal honeycomb structure 9 has a hexagonal shape.
• the second wedging layer 8 further comprises several assembly tabs 13 each obtained by cutting the first secondary outer covering layer 11 of the second wedging layer 8.
• the number of assembly tabs 13 is identical to the number of assembly housings 7, and is therefore for example between 2 and 20.
• the second wedging layer 8 comprises four assembly tabs 13 each disposed near a respective corner of the first secondary outer covering layer 11.
• Each assembly tongue 13 has a maximum transverse dimension greater than a maximum transverse dimension of a respective assembly housing 7, and is configured to be received at least partially in the second housing part 7.2 of the housing. respective assembly 7, so as to assemble the first and second wedging layers 3, 8 to each other.
• each assembly tongue 13 more particularly has a maximum width greater than the width of each of the sides of the cross section of the respective assembly housing 7, and therefore greater than the width of each of the internal faces of the respective assembly housing 7.
• each assembly tab 13 has a quadrilateral shape, and more particularly trapezoidal.
• each assembly tab 13 could have a completely different shape, for example circular, rectangular, hexagonal or even kite-shaped.
• Each assembly tab 13 may for example have a proximal edge connected to the main part of the second wedging layer 8 and having a first width, and a distal edge having a second width greater than the first width.
• the first width can for example be about 13 mm
• the second width can for example be about 21 mm.
• each assembly tab 13 comprises a central part connected to a main part of the second wedging layer 8 (and more particularly of the first secondary external covering layer 11), and two assembly parts lateral arranged on either side of the central part.
• the two lateral assembly parts are configured to cooperate with internal walls of the internal honeycomb structure 4 which delimit at least in part the respective assembly housing 7.
• each of the side assembly parts has a generally triangular shape.
• the second secondary outer covering layer 12 of the second wedging layer 8 comprises several through holes 14 each opening into at least one respective cell of the internal honeycomb structure secondary 9 and each being located at least partly opposite a assembly tab 13 respectively.
• each passage orifice 14 has a shape substantially identical to that of the respective assembly tongue 13.
• the first and second wedging layers 3, 8 further define a receiving housing 15 configured to at least partially house the product to be packaged.
• a manufacturing method for manufacturing the wedging element 2 according to the present invention is described below. Such a manufacturing process comprises the following steps:
• the assembly step is carried out using a punching tool 16 configured to deform and introduce each assembly tab 13 at least partially into the second housing part 7.2 of the respective assembly housing 7.
• the punching tool 16 comprises a punching tip 17 comprising:
• each assembly tongue 13 is configured to orient the deformation of each assembly tongue 13 according to a predetermined deformation orientation during the introduction of said assembly tab 13 in the respective assembly housing 7, and
• each assembly housing 7 configured to cooperate with each assembly housing 7 during the introduction of the respective assembly tongue 13 into said assembly housing 7, the guide part 17.1 advantageously having a cross section substantially complementary to the cross section of each of the assembly housings 7.
• the assembly step comprises the following steps: a) positioning the punching tool 16 opposite a passage orifice 14 provided in the second layer of wedging 8, b) movement of the punching tool 16 in the direction of the second wedging layer 8 and through the said passage orifice 14 and the secondary internal cellular structure 9 according to a direction of movement which is vertical and which is perpendicular to the extension planes of the first and second wedging layers 3, 8, c) deformation and introduction of the respective assembly tab 13 at least partially into the second housing part 7.2 of the respective assembly housing 7, d) introduction , in the respective assembly housing 7, of the cut-out part 18 (obtained when cutting the second secondary outer covering layer 12 for the formation of the respective passage orifice 14) of the second secondary outer covering layer 12, and e) retaining the assembly tongue 13 in the respective assembly housing 7 by the cut-out part 18 introduced into said assembly housing 7, and f) repeating steps a) to e) for each of the other through holes 14.
• FIG. 9 represents a wedging element 2 according to a second embodiment which differs from the first embodiment essentially in that the wedging element 2 comprises at least a third wedging layer 19 stacked on the second layer of wedging 8 and also provided with one or more additional assembly tab(s) 21 configured to cooperate with one or more additional assembly housing(s) 22 provided on the second wedging layer 8.
• the additional assembly tab(s) 21 provided on the third wedging layer 19 could be of larger in size than the assembly tab(s) 13 provided on the second wedging layer 8.
• FIG. 10 represents a wedging element 2 according to a third embodiment which differs from the second embodiment essentially in that the additional assembly tab(s) 21 provided on the third wedging layer 19 is (are) laterally offset with respect to the assembly tab(s) 13 provided on the second wedging layer 8.
• Figure 11 shows a wedging element 2 according to a fourth embodiment which differs from the first embodiment essentially in that the first and second wedging layers 3, 8 are obtained by making a partial cutout of a panel wedging made of honeycomb cardboard, and in that the stack of the first and second wedging layers 3, 8 is made by folding the wedging panel on itself.
• Figure 12 shows a wedging element 2 according to a fifth embodiment which differs from the fourth embodiment essentially in that the wedging element 2 is obtained by making several partial cutouts of a cardboard wedging panel cellular and by folding the wedging panel in a "snail" shape, so as to form a stack of different wedging layers, for example 3 or more in number.
• the second wedging layer 8 could be made of corrugated cardboard or be obtained by molding or extrusion of cellulose fibers, rather than of honeycomb cardboard.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Packaging Of Machine Parts And Wound Products (AREA)
• Buffer Packaging (AREA)
• Packages (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=80447125

Family Applications (1)

Country Status (4)

Family Cites Families (7)

• 2021
  • 2021-11-23 FR FR2112374A patent/FR3129382B1/fr active Active
• 2022
  • 2022-11-18 CN CN202280075960.7A patent/CN118251352A/zh active Pending
  • 2022-11-18 WO PCT/FR2022/052122 patent/WO2023094749A1/fr not_active Ceased
  • 2022-11-18 EP EP22826367.9A patent/EP4436896A1/de active Pending

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