FR2508874A1 - CAP WITH DISPENSING NOZZLE FOR PRESSURE CONTAINER PROVIDED WITH A VALVE - Google Patents

Abstract

THE CAP INCLUDES A SO-FIXED PART CONSISTING OF A SKIRT 2 PROVIDED TO BE SHIMMED ON THE CONTAINER AND OF A ZONE 5 OF AN UPPER PART OF GENERAL ORIENTATION SENSITIVELY PERPENDICULAR TO THE SKIRT, AND A MOBILE PART CONSTITUTED OF ANOTHER ZONE 6 OF THE UPPER PART, THE MOBILE PART AND THE FIXED PART ARE ONLY CONNECTED, BEFORE USE OF THE CAP, BY BREAKABLE LINKS OR TABS 10 IN NUMBER AT LEAST EQUAL TO THREE, SO AS TO FORM ONLY ONE PART BEFORE BREAKING OF LINKS 10 AND TWO INDEPENDENT PARTS AFTER BREAKING OF SAID LINKS.

Description

The subject of the present invention is a cap with a dispensing nozzle.

  for a pressure container fitted with a valve Sets consisting of such a container with such a cap are commonly used for the distribution of numerous products, under various

forms, aerosols, creams, pastes.

  The dispensing nozzle may include a spray nozzle or form an outlet channel, possibly

with a valve.

  A cap with dispensing nozzle (Spray-Cap) generally comprises a cylindrical skirt designed to wedge, removably or not, at the top of a container and an upper part of general orientation

  substantially perpendicular to the skirt.

  The dispensing nozzle is placed in an or-

  verture of the skirt, and an area of the upper part

  of the cap constitutes a bearing surface forming

  evening for valve release This plunger is therefore movable relative to the skirt This mobility can be obtained by deformation of the cap, or a part can be articulated on the rest The cap can also be made up of several independent parts The cap

  has an axial tube, connected to the dispensing nozzle

  tion, designed to come to be fitted on the valve stem

valve.

  In order to give a guarantee to the purchaser of a container filled with product and provided with such a cap, the support surface forming a pusher can be wedged relative to

  at the skirt, the pusher can only be released by

  destruction or tearing of an apparent element forming a

  "inviolability" Such devices are more or less com-

  pliqu 6 S and consequently expensive, and do not always give full satisfaction Spray-caps in several pieces

  assemblies are expensive The caps with a part

  articulated tie have the disadvantage that the thrust on the valve stem is not straight The valve stem

  undergoes flexion and functioning may become defective

  The present invention relates to a device

  simple, inexpensive, and efficient.

  According to the present invention, a capu-

  plastic molded cap with dispensing nozzle for pressure vessel fitted with a valve, with a hollow valve stem emerging outside, and of which

  pressing causes the valve to open,

  both a so-called fixed part consisting of a skirt intended to be wedged on the container and of an area of a part

  superior of general orientation substantially perpendicular to

  the skirt, and a so-called movable part, made up of another region of the upper part, the movable part comprising a distribution tube with an inlet end comprising an overbore, known as a valve well, the internal diameter of which is equal to the outside diameter

  valve stem and one outlet end is characterized

  laughed in that the movable part and the fixed part are connected, before use of the cap, only by breakable links or tabs in number at least equal to three, so as to form a single piece before breaking the links, and two independent pieces after breaking said links.

  Other features of the invention appear

  ra Will go during the description which follows, given

  by way of nonlimiting example, with reference to the attached drawings, and which will make it clear how the invention

can be done.

  In the drawings, FIG. 1 is a top plan view of a dispensing cap according to the invention,

  Figure 2 is a side view of the same capu-

  chon, along arrow F of Figure 1, and Figure 3 is a sectional view along line III-III of Figure 1, the cap placed on a container. The dispenser cap (spray-cap) 1 comprises a cylindrical skirt 2 designed to be fixed to the upper part of a container 3 For this purpose, the skirt may comprise, on the lower edge of the internal face of the

  bosses 4 for wedging the cap, by elastic effect-

  tick, in a groove of the container The bosses can be in the form of pawls, so as to make the cap and the container inseparable, after mounting the cap by force on the container In general, the cap is made of molded material, for example polyethylene, polypropylene or polystyrene,

  etc. The skirt-canister junction can be made other-

  ment, depending on the shape of the container The bosses of the skirt may be external, etc., as is well known from

one skilled in the art.

  The upper part of the cap, generally

  line substantially flat and perpendicular to the skirt is divided into two zones: a zone 5 integral with the skirt, and a zone 6 which can be detached from it Zone 6

  constitutes a pushing surface which can form a push

  evening In the example shown, zone 5 surrounds the

  push, but the proportions and arrangements re-

  the two zones can be arbitrary.

  evening 6 could be round or rectangular-instead of having the shape of a trapezoid It is only preferable that the pusher occupies the central part, to favor a

  direct support on the valve stem 8, which for

  economic sounds is in line with the cylindrical container 3.

  The pusher 6 and the rest 2, 5 of the cap are

  advantageously molded in a single piece of plas-

  tick, and in accordance with a characteristic of the present invention, the mold is designed so that these two parts, the pusher, and the rest of the cap are joined only by breakable links or tabs 10 a, l Ob, 10 c,

  l Od, 10 a.m. (at least three, there are eight on the example-

ple shown).

  It is therefore not possible to push in the push-button.

  evening without breaking the links 10 Therefore, the buyer can know if the valve has already worked and ensure that the contents of the container are intact As soon as the links 10 have

  been broken, the pusher forms a separate, independent piece

the rest of the cap.

  Figure 3 shows in more detail the structure of the pusher 6 We see that the pusher can

  have a skirt 11 which can slide in a skirt

  dull 12 of the cap to guide the pusher.

  The upper surface of the pusher is slightly concave, which is advantageous for positioning the finger of the operator.

  but not at all necessary, as is well known

  naked Finally, the pusher comprises an inlet tube 14 of the product to be dispensed, and an outlet tube 15, opening at the upper part of the skirt 2 The inlet tube and the outlet tube can be connected in any suitable manner . The inlet tube 14 is vertical and axial, and

  the outlet tube can be any It can be per-

  pendulum to the previous one as shown in FIG. 3, or inclined or even in the extension of the inlet tube,

  for specific applications The position shown

  smelled is the most frequent. The external part of the outlet tube 15 may include a shoulder 16 for wedging therein.

  a sprinkler for example, for use as a sprayer

  risateur The outer part of the inlet tube 14 comprises

  must carry a shoulder 17, forming a surale-

  sage 18 says valve well in order to transmit the push

valve stem 8.

  According to a characteristic of the present invention

  tion, the valve well 18 extends over a height sufficient

  Fisante to allow the accommodation of valve stems 8 of different lengths so that during assembly, there is neither breaking of the attachment points, nor setting

  valve operation It is also possible to com-

  think of manufacturing differences between different valves

  different origins In Figure 3, a height is provided.

  tor h, which can be of the order of magnitude of a "some-

  a few millimeters between the shoulder 17 and the end of the valve stem 8 After pushing the plunger 6 on first use, the plunger will remain in the slightly lowered position, with the shoulder 17 pressing against the end of the valve stem valve 8 The play is thus caught up during the first action of the mobile part,

  which then makes it possible to break the attachment points and to terminate

  mine the depression of the valve in its housing.

  Advantageously, the links, or bridges of materials 1 Oa, l Ob, which hold the two parts of the cap together at the outlet of the mold and until the first use, have a non-constant section, preferably conical or equivalent, with a large section. in contact with the fixed part of the cap, and a thinned part easy to break adjacent to the movable pusher Thus, after rupture, there will remain small points integral with the fixed part of the cap, which will prevent the pusher from falling, in case we return the cap, and if the tightening of the oversize 18 of the inlet tube 14 on the valve stem

  8 was not sufficient to retain the pusher 6.

  Use of the cap according to the invention

  is evident from the above description After

  fitting of the cap on the container, the assembly is distributed and sold, in this state until the first use, during which the tongues 10 will be

broken.

  It goes without saying that the embodiment described

  is just an example and it would be possible to modify it

  proud in particular by substitution of technical equivalents,

  without departing from the scope of the invention.

Claims (5)

CLAIMS:   1. Molded plastic cap with dispensing nozzle for pressure vessel (3) fitted with a valve, with a hollow valve stem (8) emerging outside, and the depression of which causes the opening of the valve, comprising a so-called fixed part constituted by a skirt (2) intended to be wedged on the container and by an area (5) of an upper part of general orientation substantially perpendicular to the skirt, and a so-called movable part , made up of another   zone (6) of the upper part, the movable part   carrying a distribution tube with one end   inlet 14 comprising an overbore 18 known as a wellbore   pope whose inner diameter is equal to the ex-   of the valve stem (8) and an outlet end (15), characterized in that the movable part and   the fixed part are not connected, before using the capu-   chon, that by links or breakable tabs (10) in number at least equal to three, so as to form only one piece before rupture of the links (10) and two pieces   independent after breaking said links.   2. Cap according to claim 1, characteristic   risé in that the length of the valve well (18) of the movable part (6) is provided with a longitudinal clearance allowing to receive valve stems of different   lengths so that when mounting there is no rup-   ture of attachment points, nor operation of the valve.   3. Cap according to one of claims 1 or 2,   characterized in that the mobile part (6) comprises an outer skirt (11) allowing the guidance of said mobile part, in an internal skirt (12) integral with the fixed part.   4. Cap according to one of the pre- claims   cédentes, characterized in that the outlet tube (15) of the movable part (5) has a widening with   a shoulder (16) for stalling a nozzle.   5. Cap according to one of the pre- claims   cédentes, characterized in that the cap (1) is snapped   quetable on the container (3), so as to make them separable.