FR2699145A1 - Protective screw cap, made of molded plastic. - Google Patents

Abstract

The protective cap made of molded plastic material is in a single piece 1, which is screwed onto the neck 2. The cap 1 is easily manoeuvrable, and includes a bottom 3 extended by an inner side skirt 5 allowing screwing on the neck 2 An outer lateral skirt 4 comprising at least one pressure means 6 movable relative to said skirt about a bending axis 7 substantially parallel to the bottom 3 of said plug 1. Said pressure means 6 is provided with at least a terminal bulge 8 cooperating with at least one crown portion 10 of the neck. The neck 2 comprises at least one crown portion 10 of substantially the same axis as the neck, the interruption of which creates the stop section 9. Said crown portion of straight section decreases in the direction of the neck and allows guidance, during the screwing of the terminal bulge 8 until the passage of the stop section 9 creating a non-return system that can only be released by actuating the pressure means 6 in order to release the terminal bulge 8 allowing the unscrewing of said protective cap . On the other hand, a system of inviolability by crown 11 connected by a canvas 14, or point (s) 12 can be added in version to said protective cap 1. The invention applies to caps requiring for their opening, by protective measure, special handling.

Description

The present invention relates to a closure device for

  vials, bottles or similar containers, and more particularly

  particularly a closing device which provides protection in the neces-

  for its opening, a particular manipulation.

  It is known that in the home, for safety reasons, young children should not have access to the contents of certain containers whose handling or ingestion could lead to serious accidents and

sometimes fatal.

  A protection, adding to the storage of the containers out of the

  children's reach, consists in equipping them with a device for closing

  which, in order to achieve the unblocking, requires several

  operations in a particular order, which virtually eliminates the

  possibility of inadvertent opening due to random handling

by a young child.

  The present invention proposes such a device for blocking

  tection, intended to be screwed onto the neck of the butcher container, which is

  simple and inexpensive to manufacture because of one piece, an excellent

  slow capping efficiency, which can not be opened by accidental manipulation especially if it is maneuvered by a young child, and

  which is reusable without losing any of its qualities.

  According to the invention, the protective cap made of

  molded plastic is in one piece which is screwed on the neck of the container.

  Said plug having at least one projecting eye element which is designed to allow the rotation drive only when a horizontal pressure is applied to this projecting part to release

  the stop device attached thereto.

  According to a preferred embodiment, the or the projecting element is constituted by ribs and bulge allowing the housing of a finger in its external appearance and in its inner part by a bulge at its end coming opposite the section. stopping the portion

crown of the neck.

  It is therefore understood that the opening of the plug, that is to say its unscrewing, can be obtained only by applying to the projecting portion of the plug, simultaneously with the rotational movement in the unscrewing direction, a horizontal thrust If this horizontal thrust is not applied, the inner bulge of the protruding part will come into contact with the end of the crown portion of the neck causing the stopping of the rotational drive

protective cap.

  According to an important additional characteristic, the protruding portion of the protective cap according to the invention is continued in the upper part by one or more points serving as tamper which are connected to it by means breakable by horizontal pressure (or by a ring of inviolability in its lower part bound by tearing means) so as to highlight the first opening

of the cap.

  To clearly understand the plug according to the invention will be described hereinafter by way of non-limiting example, a preferred embodiment with reference to the accompanying schematic drawing wherein Figure 1 is a vertical sectional view of a cap according to the invention shown in a depressed position of protection and on the

  Figure 2 in the raised position allowing its opening.

  FIG. 3 is an elevational view of the plug of FIG.

1 in the depressed position.

  In reference to the drawing the cap made of plastic

  Molded polypropylene for example consists of a single part.

  It comprises a sealing part with an inner element 13 intended to engage in the neck of the bottle or on its outside

  and which extends outwards by a skirt screwing itself into the

  represented by a corresponding double thread of the neck 2 of the bottle.

  In extension on the outside, the stopper consists of an actuating skirt comprising notches allowing a good grip by the user. On its outer face it comprises at least one pressure ear

  6, connected by one or more points to the bottom 3 and creating an inviol-

  lability The said pressure lug 6 is of ergonomic shape to allow proper housing of a finger of the hand It has at its inner end at least one end bulge The neck 2 comprises at least a crown portion 10 of which interruption creates a stop section 9 said crown portion has a shape for guiding

  end bulge 8 during screwing.

  The method of use of the cap is as follows: for a first

  opening, manual pressure is first applied to the

  the pressure 6 to break the point or points 12 inviolability is then pressed on said lug 6 according to the arrow F of Figure 1, so as to release the terminal bulge 8 of that created by the

  stop section 9 of the crown portion 10 Then simultaneously

  rotates the cap 1 in the unscrewing direction.

  IF the effort in the direction of arrow F is absent or

  ble (when actuated by a child), the rotational drive of the cap 1 is stopped by the stop section 9 making the cap trapped

  collar and donations without assuring the unscrewing of the cap.

  The filling is done by screwing the cap 1 in a natural way.

  Relle. The opening process is advantageously made explicit by a drawing which is engraved on the top of the cap but which has not been shown on

  the figures of the present patent application.

  It will be understood that the above description has been given to simple

  as an example, without limitation, and that its additions or constructive modifications could be made without departing from

  framework of the invention defined by the appended claims in particular

  the tamper-evident band 11 has been described as being connected to the skirt 4 by a cloth 14, or the possibility of implanting the inviolability on the upper part of the pressure lug 6 by the point (s) (s) ) 12, but they could be replaced by any other connection system tearable or breakable appproprié Similarly, there is shown a double thread for screwing the cap 1 on the neck 2 of the bottle, but

  will understand that the net could be simple or any other design.

Claims (4)

  1 molded plastic protective cap for ob-   turation of a container, characterized in that it is in a single part   screwing on the neck 2 The said neck with at least a portion of crown   ne 10 having a shoulder connecting this neck to the body and secondly in that said protective cap is constituted by a bottom 3 extended by an inner side skirt 5 for screwing on the neck 2 and an outer side skirt 4 characterized in that the latter comprises at least one moving pressure means 6 with respect to said skirt   around a bending axis 7 substantially parallel to the bottom 3 of said plug.   The pressure means 6 being provided with at least one end bulge 8 cooperating with at least one crown portion 10 of the neck, only when a horizontal pressure F is applied to said pressure means 6   it causes a disengagement of said elements 8 and 9 which are opposite.   2 cap according to claim 1 characterized in that said said (or said) element (s) projecting also called pressure lug 6 comprises a bulge 8 at its inner end coming into the recessed position of protection vis-à-vis the section d stop 9 of the neck 2 for   prevent unscrewing of said plug 1.   3 cap according to claims 1 and 2 characterized in   the operation of (or) the ear (s) of pressure 6 operates around a bending axis 7 substantially parallel to the bottom 3 of said plug 3.   4 cap according to any one of the preceding claims   characterized in that said pressure lug 6 continues in its upper part by a (or) point (s) of inviolability (s) 12 which is or   (are) bound by tearable or breakable means.   Stopper according to any one of the preceding claims   cedeentes characterized in that the said outer side skirt 4 (in a version other than that referred to in claim 4) is continued at its lower part by a tamper-evident ring 11 which is connected thereto by tearable means 14 and which carries in its internal face notches 15   coming opposite other notches 16 of the neck 2 of the container.