Receptacle comprising a lid

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 43/02 (2006.01)

Patent

CA 2576591

Disclosed are a top shell (1) or bottom shell (2) made from a deep-drawn molded plastic part as well as a receptacle which is composed of the two joined shells. The invention further relates to a method and a device for producing a top shell or bottom shell (1, 2). The aim of the invention is to create a first and a second shell (1, 2) which can be produced inexpensively as a disposable item while allowing the same to be locked together in a fixed but easily removable manner by joining the two shells together so as to create a largely tight receptacle. Said aim is achieved, among other things, by embodying a reducing collar (5) between the holding edge (4) and the pot-type central part (3) on the top shell (1) while disposing at least two identically pitched threads (7a, 7b, 7c, 7d, 7e, 7f) on the inner face (6) of the holding edge (4). The reducing collar (5) delimits the at least two threads (7a, 7b, 7c, 7d, 7e, 7f) on one side while said at least two threads (7a, 7b, 7c, 7d, 7e, 7f) are provided with an open thread inlet (48).

L'invention concerne une coquille de couvercle (1) ou une coquille de fond (2) composée d'un corps moulé en plastique embouti, ainsi qu'un contenant formé des deux coquilles. L'invention concerne également un procédé et un dispositif de fabrication d'une coquille de couvercle et d'une coquille de fond (1, 2). L'invention vise à mettre en oeuvre une première et une deuxième coquille (1, 2) pouvant d'une part être fabriquées économiquement en tant que produit jetable et garantissant d'autre part, par assemblage, une connexion solide mais aisément amovible sous forme de contenant étanche. A cet effet, la coquille de couvercle (1) comporte un joint de réduction (5) créé entre le bord de connexion (4) et la partie centrale en forme de pot (3), et le côté intérieur (6) du bord de fixation (4) comporte au moins deux pas de vis (7a, 7b, 7c, 7d, 7e, 7f) de pas identique, le joint de réduction (5) délimitant unilatéralement les deux pas de vis (7a, 7b, 7c, 7d, 7e, 7f) et les deux pas de vis (7a, 7b, 7c, 7d, 7e, 7f) présentant une entrée de pas ouverte (48).

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