EP0357477A1 - Shock-absorbing and wedging element for packaging fragile articles - Google Patents

Shock-absorbing and wedging element for packaging fragile articles Download PDF

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Publication number
EP0357477A1
EP0357477A1 EP89402106A EP89402106A EP0357477A1 EP 0357477 A1 EP0357477 A1 EP 0357477A1 EP 89402106 A EP89402106 A EP 89402106A EP 89402106 A EP89402106 A EP 89402106A EP 0357477 A1 EP0357477 A1 EP 0357477A1
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EP
European Patent Office
Prior art keywords
chamber
stud
base
plot according
inclination
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Granted
Application number
EP89402106A
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German (de)
French (fr)
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EP0357477B1 (en
Inventor
Serge Fleury
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Individual
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Individual
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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
    • 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
    • B65D81/107—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 using blocks of shock-absorbing material

Definitions

  • the invention relates to the field of packaging fragile devices such as for example computers, cash registers or scientific apparatus and instruments.
  • molded polystyrene shells are generally used which partially or completely follow the shapes of the product.
  • this technique is relatively expensive because it requires one or more injection molds to be produced for each device model.
  • the present invention aims to provide a new means of wedging and damping which makes it possible to produce suitable packaging whatever the shape of the product to be packaged and which exhibits damping performance far superior to that of molded shell protection devices. , while being of a substantially lower cost price.
  • the invention is embodied by a pad made of deformable synthetic material called "memory", said pad comprising an internal chamber open at its base, the volume of which is approximately equal to 10% of the total volume of the pad, a vent being formed between said chamber and the outside of the stud.
  • memory material any material capable of gradually deforming under the effect of an impact or of pressure and of fully recovering its initial shape when the stress exerted on it ceases.
  • One such material is, for example, molded polyethylene.
  • the presence of the internal chamber in communication with the outside via a vent acts as a pneumatic shock absorber whose effect is combined with the absorption capacity specific to the material constituting the stud to ensure that it gradually deforms , even under the effect of very high forces which avoids or considerably reduces the limit threshold, the absorption threshold and the appearance of the tailgating effect.
  • the stud according to the invention is of generally frustoconical shape in section with an angle of inclination of its sides between 15 and 30 °.
  • the angle of inclination of the sides of the stud is 20 °.
  • the opening diameter of the base of the chamber is less than and at most equal to the diameter of the top of the stud.
  • the pad according to the invention is moldable in series and is intended to be glued by its base to the interior walls of the packaging to which it is applied in number and according to a provision determined case by case according to the shapes of the product to be protected, its weight and the required damping capacity.
  • the studs shown in Figures 1 to 4 are generally frustoconical. They are made of molded polyethylene, advantageously of a polyethylene known under the trade names EPERAN or NEOPOLEN.
  • the stud has a base 1, a conical wall 2 converging towards a top 3 which constitutes the contact surface with the product to be packaged and an internal chamber 4 in communication with the outside via a vent 5 which, in the example shown, is arranged between the upper part of the chamber and the top 3.
  • the reference 6 represents the lower edge of the wall of the chamber 4.
  • Vent 5 can be arranged differently. It can for example be constituted by a radial groove made in the base 1 of the stud.
  • the two studs shown in FIGS. 1 to 4 are two studs of the same series, the following dimensions of which are constant: - base diameter: 115 mm - angle of inclination of the wall: 20 ° - distance between the top of the chamber and the top of the stud: 15 mm.
  • the studs shown are of frustoconical shape both in section and in volume. It is possible without departing from the scope of the invention to produce studs which, while retaining a frustoconical shape in section, will have a contour of substantially different geometric shape.
  • Figures 5a to 15b show eleven different possible embodiments with for each form a schematic profile view and a half plan view.

Abstract

A wedging and shock-absorbing element for packaging is formed from so-called memory-deformable synthetic material and comprises an inner chamber (4) open at its base (1) in communication with the outside via a vent (5), the volume of the chamber being approximately equal to 10% of the total volume of the element. <IMAGE>

Description

L' invention concerne le domaine de l' emballage d'appareils fragiles tels que par exemple les ordinateurs, les caisses enregistreuses ou les appareils et instruments scientifiques.The invention relates to the field of packaging fragile devices such as for example computers, cash registers or scientific apparatus and instruments.

Lors de leur manutention, ces appareils sont exposés aux chutes ou aux chocs. C'est pourquoi leurs emballages sont garnis de matériaux ou de dispositifs d'amortissement et de rembourrage tels que des copeaux de matière plastique, des nappes ou des blocs de mousse.During their handling, these devices are exposed to falls or shocks. This is why their packaging is lined with materials or cushioning and padding devices such as plastic shavings, tablecloths or blocks of foam.

Pour les appareils les plus onéreux et les plus fragiles, on utilise généralement des coquilles en polystyrène moulé qui épousent partiellement ou totalement les formes du produit. Mais cette technique est relativement onéreuse car elle oblige à réaliser pour chaque modèle d'appareil un ou plusieurs moules d'injection.For the most expensive and most fragile devices, molded polystyrene shells are generally used which partially or completely follow the shapes of the product. However, this technique is relatively expensive because it requires one or more injection molds to be produced for each device model.

La présente invention vise à procurer un nouveau moyen de calage et d'amortissement qui permette de réaliser un emballage approprié quelle que soit la forme du produit à emballer et qui présente des performances d'amortissement très supérieures à celles des dispositifs de protection par coquilles moulées, tout en étant d'un prix de revient sensiblement inférieur.The present invention aims to provide a new means of wedging and damping which makes it possible to produce suitable packaging whatever the shape of the product to be packaged and which exhibits damping performance far superior to that of molded shell protection devices. , while being of a substantially lower cost price.

Dans ce but, l'invention est matérialisée par un plot en matière synthétique déformable dit "à mémoire", ledit plot comportant une chambre interne ouverte à sa base dont le volume est environ égal à 10 % du volume total du plot, un évent étant ménagé entre ladite chambre et l'extérieur du plot.For this purpose, the invention is embodied by a pad made of deformable synthetic material called "memory", said pad comprising an internal chamber open at its base, the volume of which is approximately equal to 10% of the total volume of the pad, a vent being formed between said chamber and the outside of the stud.

Par matière à mémoire, on entend toute matière capable de se déformer progressivement sous l'effet d'un choc ou d'une pression et de reprendre intégralement sa forme initiale lorsque la contrainte exercée sur elle cesse. Un matériau de ce type est par exemple le polyéthylène moulé.By memory material is meant any material capable of gradually deforming under the effect of an impact or of pressure and of fully recovering its initial shape when the stress exerted on it ceases. One such material is, for example, molded polyethylene.

La présence de la chambre interne en communication avec l'extérieur par un évent joue le rôle d'un amortisseur pneumatique dont l'effet se combine avec la capacité d'absorption propre au matériau constitutif du plot pour assurer à celui-ci une déformation progressive, même sous l'effet de forces très élevées ce qui évite ou recule considérablement le seuil limite, le seuil d'absorption et d'apparition de l'effet de talonnage.The presence of the internal chamber in communication with the outside via a vent acts as a pneumatic shock absorber whose effect is combined with the absorption capacity specific to the material constituting the stud to ensure that it gradually deforms , even under the effect of very high forces which avoids or considerably reduces the limit threshold, the absorption threshold and the appearance of the tailgating effect.

Selon une forme de réalisation avantageuse, le plot conforme à l'invention est de forme générale tronconique en section avec un angle d'inclinaison de ses côtés compris entre 15 et 30°.According to an advantageous embodiment, the stud according to the invention is of generally frustoconical shape in section with an angle of inclination of its sides between 15 and 30 °.

De préférence l'angle d'inclinaison des côtés du plot est de 20°.Preferably the angle of inclination of the sides of the stud is 20 °.

Selon une autre caractéristique avantageuse le diamètre d'ouverture de la base de la chambre est inférieur et au plus égal au diamètre du sommet du plot.According to another advantageous characteristic, the opening diameter of the base of the chamber is less than and at most equal to the diameter of the top of the stud.

Le plot selon l'invention est moulable en série et est destiné à être collé par sa base sur les parois intérieures de l'emballage auquel il est appliqué en nombre et selon une disposition déterminé cas par cas en fonction des formes du produit à protéger, de son poids et de la capacité d'amortissement requise.The pad according to the invention is moldable in series and is intended to be glued by its base to the interior walls of the packaging to which it is applied in number and according to a provision determined case by case according to the shapes of the product to be protected, its weight and the required damping capacity.

Avec les plots selon l'invention, on peut réaliser des emballages dont la capacité d'amortissement est environ deux fois supérieures a celle des coquilles d'emballage actuellement connues pour un coût sensiblement moindre.With the pads according to the invention, it is possible to produce packages whose damping capacity is approximately twice that of the packaging shells currently known for a significantly lower cost.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre d'exemples de réalisation de plots conformes à l'invention, en référence aux dessins annexés sur lesquels :

  • La figure 1 est une vue en coupe de profil d'un premier plot selon l'invention ;
  • La figure 2 est une demi vue en plan au plot de la figure 1 ;
  • La figure 3 est une vue en coupe de profil d'un deuxième plot selon l'invention, et
  • La figure 4 est une demi vue en plan du plot de la figure 3.
Other characteristics and advantages of the invention will emerge from the description which follows of exemplary embodiments of studs in accordance with the invention, with reference to the appended drawings in which:
  • Figure 1 is a sectional side view of a first pad according to the invention;
  • Figure 2 is a half plan view to the pad of Figure 1;
  • FIG. 3 is a profile section view of a second stud according to the invention, and
  • FIG. 4 is a half plan view of the pad of FIG. 3.

Les plots représentés sur les figures 1 à 4 sont de forme générale tronconique. Ils sont en polyéthylène moulé, avantageusement en un polyétylène connu sous les dénominations commerciales EPERAN ou NEOPOLEN. Le plot comporte une base 1, une paroi conique 2 convergeant vers un sommet 3 qui constitue la surface de contact avec le produit à emballer et une chambre interne 4 en communication avec l'extérieur par un évent 5 qui, dans l'exemple représenté, est disposé entre la partie supérieure de la chambre et le sommet 3.The studs shown in Figures 1 to 4 are generally frustoconical. They are made of molded polyethylene, advantageously of a polyethylene known under the trade names EPERAN or NEOPOLEN. The stud has a base 1, a conical wall 2 converging towards a top 3 which constitutes the contact surface with the product to be packaged and an internal chamber 4 in communication with the outside via a vent 5 which, in the example shown, is arranged between the upper part of the chamber and the top 3.

La référence 6, représente le bord inférieur de la paroi de la chambre 4.The reference 6 represents the lower edge of the wall of the chamber 4.

L'évent 5 peut être disposé autrement. Il peut par exemple être constitué par une rainure radiale pratiquée dans la base 1 du plot.Vent 5 can be arranged differently. It can for example be constituted by a radial groove made in the base 1 of the stud.

Les deux plots représentés aux figures 1 à 4 sont deux plots d'une même série dont les dimensions suivantes sont constantes :
- diamètre de base : 115 mm
- angle d'inclinaison de la paroi : 20°
- distance entre le haut de la chambre et le sommet du plot : 15 mm.The two studs shown in FIGS. 1 to 4 are two studs of the same series, the following dimensions of which are constant:
- base diameter: 115 mm
- angle of inclination of the wall: 20 °
- distance between the top of the chamber and the top of the stud: 15 mm.

Seuls différent la hauteur (30 mm pour le plot des figures 1 et 2 et 100 mm pour le plot des figures 3 et 4) et le diamètre du sommet (respectivement 93 mm et 44 mm).The only difference is the height (30 mm for the stud in Figures 1 and 2 and 100 mm for the stud in Figures 3 and 4) and the diameter of the top (93 mm and 44 mm respectively).

Dans les exemples des figures 1 à 4, les plots représentés sont de forme tronconique aussi bien en section qu'en volume. Il est possible sans sortir du cadre de l'invention de réaliser des plots qui tout en conservant une forme tronconique en section auront un contour de forme géométrique sensiblement différente.In the examples of FIGS. 1 to 4, the studs shown are of frustoconical shape both in section and in volume. It is possible without departing from the scope of the invention to produce studs which, while retaining a frustoconical shape in section, will have a contour of substantially different geometric shape.

Les figures 5a à 15b représentent onze forme de réalisations différentes possibles avec pour chaque forme une vue schématique de profil et une demi vue en plan.Figures 5a to 15b show eleven different possible embodiments with for each form a schematic profile view and a half plan view.

Pour plus de commodité, la chambre est son évent n'ont pas été représentés mais on comprend aisément qu'ils sont similaires à ceux des exemples de réalisation des figures 1 à 4.For convenience, the chamber and its vent have not been shown, but it is easily understood that they are similar to those of the exemplary embodiments of FIGS. 1 to 4.

Claims (7)

1. Plot de calage et d'amortissement pour l'emballage, caractérisé en ce qu'il est constitué en matériau synthétique déformable dit à mémoire, en ce qu'il comporte une chambre interne (4) ouverte à sa base (1) en communication avec l'extérieur par un évent (5), le volume de la chambre étant environ égal à 10% du volume total du plot.1. Wedging and damping pad for packaging, characterized in that it is made of deformable synthetic material called memory, in that it comprises an internal chamber (4) open at its base (1) in communication with the outside via a vent (5), the volume of the chamber being approximately equal to 10% of the total volume of the stud. 2. Plot selon la revendication 1, caractérisé en ce qu il est de forme générale tronconique en section et en ce que sa paroi à un angle d'inclinaison compris entre 15° et 30°.2. Plot according to claim 1, characterized in that it is generally frustoconical in section and in that its wall at an angle of inclination between 15 ° and 30 °. 3. Plot selon la revendication 2, caractérisé en ce que l'inclinaison de sa paroi est de 20°.3. Plot according to claim 2, characterized in that the inclination of its wall is 20 °. 4. Plot selon la revendication 2 ou 3, caractérisé en ce que le diamètre d'ouverture de la base (1) de la chambre (4) est au plus égal au diamètre du sommet (3).4. Stud according to claim 2 or 3, characterized in that the opening diameter of the base (1) of the chamber (4) is at most equal to the diameter of the top (3). 5. Plot selon l'une quelconque des revendications 2 à 4, caractérisé en ce que la partie haute de la chambre (4) est constituée par une demi sphère.5. Plot according to any one of claims 2 to 4, characterized in that the upper part of the chamber (4) is constituted by a half sphere. 6. Plot selon l'une quelconque des revendications 2 à 5, caractérisé par les dimensions suivantes :
- diamètre de la base : 115 mm
- angle d'inclinaison de la paroi : 15 et 30°
- distance entre le haut de la chambre et le sommet du plot : 15 mm.
- rayon de courbure du haut de la chambre : 15mm
- hauteur : entre 30 et 100 mm.6. Plot according to any one of claims 2 to 5, characterized by the following dimensions:
- base diameter: 115 mm
- angle of inclination of the wall: 15 and 30 °
- distance between the top of the chamber and the top of the stud: 15 mm.
- radius of curvature of the top of the chamber: 15mm
- height: between 30 and 100 mm. 7. Plot selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il est en polyéthylène moulé.7. Plot according to any one of claims 1 to 6, characterized in that it is made of molded polyethylene.
EP19890402106 1988-07-25 1989-07-25 Shock-absorbing and wedging element for packaging fragile articles Expired - Lifetime EP0357477B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810011A FR2634462B1 (en) 1988-07-25 1988-07-25 SHOCK ABSORBER AND SET FOR THE PACKAGING OF FRAGILE PRODUCTS
FR8810011 1988-07-25

Publications (2)

Publication Number Publication Date
EP0357477A1 true EP0357477A1 (en) 1990-03-07
EP0357477B1 EP0357477B1 (en) 1992-06-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890402106 Expired - Lifetime EP0357477B1 (en) 1988-07-25 1989-07-25 Shock-absorbing and wedging element for packaging fragile articles

Country Status (3)

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EP (1) EP0357477B1 (en)
DE (1) DE68901833T2 (en)
FR (1) FR2634462B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10300547A1 (en) * 2003-01-09 2004-07-22 Werner Brunner Transport and storage device comprises modules consisting of cones or pyramids with positively interengaging connecting elements on their base to fit together in different forms

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516124A (en) * 1946-02-27 1950-07-25 Charles O Kishibay Shipping carton for sensitive electrical instruments
US3254757A (en) * 1960-12-15 1966-06-07 Betty L Raskin Hat support package
US3283988A (en) * 1965-04-02 1966-11-08 Hardigg James Sutton Shock isolator element for cushioned container unit and method of making the same
WO1980000953A1 (en) * 1978-10-31 1980-05-15 Ericsson Telefon Ab L M Module built shock absorbing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516124A (en) * 1946-02-27 1950-07-25 Charles O Kishibay Shipping carton for sensitive electrical instruments
US3254757A (en) * 1960-12-15 1966-06-07 Betty L Raskin Hat support package
US3283988A (en) * 1965-04-02 1966-11-08 Hardigg James Sutton Shock isolator element for cushioned container unit and method of making the same
WO1980000953A1 (en) * 1978-10-31 1980-05-15 Ericsson Telefon Ab L M Module built shock absorbing system

Also Published As

Publication number Publication date
EP0357477B1 (en) 1992-06-17
FR2634462B1 (en) 1990-11-09
DE68901833T2 (en) 1993-02-04
DE68901833D1 (en) 1992-07-23
FR2634462A1 (en) 1990-01-26

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