JP4558500B2 - Pumps capable of closing bottle necks, and packaging of products to be sprayed with these pumps and bottles - Google Patents

Description

  not listed.

  The object of the present invention is a pump capable of closing the neck of a bottle and a packaging comprising these pumps and bottles for the product to be sprayed.

This pump is generally used in the cosmetic field and relates to a bottle containing a product to be sprayed, made from a fragile material (often glass). Such a pump (referred to as a “plug” pump) is intended to close the mouth of the bottle and is also referred to as a “closed” pump, the body of which contains the pumping mechanism and a rigid sleeve However, it is attached to this body in order to prevent any elements forming this mechanism from coming off. Thus, these pumps can be pre-assembled before being supplied to the purchaser .

Impermeability of the bottle to which they are installed for the purpose of guarantee, the body of the pump is made from a flexible material. The rigid sleeve for the part is manufactured from a harder material, thereby protecting the pumping mechanism. For the purpose of immobilizing these two elements relative to each other, the rigid sleeve is provided with a small size protective ring on its outer periphery, which allows the rigid sleeve to be secured to the body, It can then be embedded in the material of the body made of flexible material by means that cannot be removed from the body regardless of the action of the spring of this pumping mechanism.

  This pump is provided pre-installed. This comprises a body made from a flexible material, in which a rigid sleeve is embedded. The pumping mechanism is installed in the rigid sleeve.

The fixing of this pump is carried out according to the following steps:
The pump is introduced inside the bottle neck. This introduction is forced and results in a deformation of the body made from a flexible material, which deformation is related to the compression between the rigid sleeve and the bottle neck. Such necks are generally made of a fragile material (in principle, glass) and the flexible material works under compression in order to prevent any risk of breaking the neck of the glass Ability is essential. Nevertheless, it is possible for the bottle to be made with a wide tolerance and to produce a clear difference in neck diameter. For the neck with the smallest diameter, the degree of deformation of the body made from a flexible material must be relatively large, and the distance between the rigid sleeve and the bottle neck must be particularly small. Don't be. However, the flexible material can achieve some maximum deformation stage. From this stage, the force required for deformation of the body is greater than the effort that a neck made from a fragile material can withstand, so the flexible material will no longer deform when the pump is introduced. And do not break the neck. The present invention aims to solve this problem. Accordingly, the present invention contemplates a pump capable of closing the neck of a bottle, the pump being a body made from a flexible material, a pumping mechanism housed in the body made from the flexible material. , and comprising a rigid sleeves, and the top of the pump, after assembling the pump on the neck is held on the outer edge of the neck, and this rigid sleeve is interposed between the pumping mechanism and the body And a ring embedded within the body is provided. The pump allows the ring to form an annular space between the outer surface of the sleeve located above the ring and the opposing inner surface of the body, the annular space being assembled. After that, the radial distance between the outer body of the sleeve and the opposing inner surface of the neck of the bottle is greater than the thickness of the body made of flexible material in an unstressed state, or It has a dimension equal to the thickness.

The role of this ring is mandatory, and as well as in the prior art, when the ring serves to fix the rigid sleeve in the body, this ring is, inter alia, the same level as the outer edge of the neck Providing an annular space that allows the body made from a flexible material to work at a height of, or not work under compression or work only slightly, but in an essentially deflected state To work. In the deflected state, the force required for deformation of the pump body is clearly lower than the force required for its compression, and the neck of this bottle, regardless of the tolerance with which this bottle is manufactured, Saved.

  Such pumps also provide a good seal for bottles filled with the product to be sprayed.

The previously described ring must have dimensions that are larger than the dimensions of the prior art ring (which provided only a locking function) in order to perform its function. Furthermore, the ring no longer needs to have a protruding shape that can penetrate the inside of the flexible material. This type of shape (e.g., switching head cone) to save the is exactly the same advantages; in this case, need to consider the depth of penetration of the ring in the body made from a flexible material Yes, this has a direct effect on the volume of the defined annular space: the more the ring penetrates into the flexible body, the more volume is reduced.

Advantageously, the top of the pump body comprises a flange, which abuts against the outer edge of the bottle neck. The rigid sleeve may also have a flange at its top end that at least partially covers the top of the body. Accordingly, the flange of the pump body is held between the outer edge of the neck and the flange of the sleeve. However, other types of solutions can be envisaged for the purpose of holding the top of the pump body, for example by bonding the top to the outer edge of the neck.

  The previously mentioned annular space is defined between the outer surface of the sleeve placed above the ring and the inner surface of the body made of flexible material, and the outer edge of the bottle neck Extend to the same height. Advantageously, this height substantially corresponds to the neck height of the bottle, which means that the outer surface of the body is made from a flexible material and the shape of the inner surface of the neck To give a good retention of the pump inside the neck and a good seal.

  A second object of the present invention is the packaging of the product to be sprayed, which packaging has a pump having the characteristics described above and a bottle made from a fragile material that can be glass.

  Such a package has the advantages associated with the use of the pump according to the invention.

  The invention and its advantages are better understood by reading the detailed description of the preferred embodiments of the invention. The following description refers to the accompanying drawings.

A pump as illustrated in FIG. 1 comprises a body 2 made of a flexible material, which houses a pump mechanism 3 (not shown), wherein the rigid sleeve 4 is An embedded ring 6 is provided. This pump can close the neck 8 of the bottle. The ring 6 forms an annular space 10 between the outer surface 4a of the rigid sleeve 4 and the opposing inner surface 2a of the body made from a flexible material.

As shown in Figure 2, after assembly of the pump in the bottle neck 8, and after the protruding ring 6 of the switching head cone shape is penetrated inside the body 2, the remaining annular space 10, the outer surface 4a of the sleeve 4 And the radial distance between the opposing inner surfaces 8a is greater than the thickness of the body 2 in the unstressed state. Under these conditions, the body 2 works in a bent state.

  According to a preferred embodiment of the invention, the top of this body 2 is in the form of a flange and is held between the outer edge 12 of the neck 8 and another flange located at the top end of the rigid sleeve.

  Generally speaking, the annular space 10 extends from the ring 6 to a level that is comparable to the outer edge of the bottle 21. Advantageously, the height of this space 10 substantially corresponds to the height of the neck 8, as illustrated in FIG. This allows the body 2 to perfectly match the rounded portion of the neck 8, thus providing a better connection of elements to each other and a better seal.

FIG. 1 illustrates a longitudinal section of a pump according to the invention before being assembled to the bottle neck. FIG. 2 illustrates a longitudinal section of the pump of FIG. 1 after being assembled to the bottle neck.

Claims (5)

A pump capable of closing the neck (8) of a bottle, the pump being made of a flexible material, a body (2) made from a flexible material, pumping mechanism produced, and top assembles the pump in該首(8) comprises a rigid sleeve (4) interposed, said body (2) between the pumping mechanism and the body (2) After that, the rigid sleeve (4) is held at the outer edge (12) of the neck (8) and the protruding rigid ring (6) embedded in the body (2), the pump , rigid ring to the projects (6), an outer surface (4a) of said rigid sleeve located above the protruding rigid ring (6) (4), facing the inner surface (2a of the body (2) ) between, Hisage an annular space (10) substantially corresponding to the height of the neck of the bottle (8) Horizontal, and the annular space (10), after assembly of the neck of the bottle (8) within which the outer surface of the rigid sleeve (4) (4a), opposed該首of the bottle (8) Pump, characterized in that the radial distance to the directional surface (8a) is greater than or equal to the thickness of the body (2) made from the flexible material.   The pump according to claim 1, characterized in that the top of the body (2) made from the flexible material comprises a flange.   3. Pump according to claim 1 or 2, characterized in that the rigid sleeve (4) comprises at its top end a flange that at least partly covers the top of the body (2). Packaging for a product to be sprayed, the packaging comprising a pump according to any one of claims 1 to 3 and a bottle made from a fragile material. A packaging for a product to be sprayed, the packaging, and a pump and glass bottle according to any one of claims 1 to 3, packaging.

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