FR2685617A1 - PERFECTED FLANGE. - Google Patents

Abstract

Brush intended to apply liquid products or pastes on a support comprising a gripping means consisting of a handle and means for applying products consisting of a head comprising a tuft of hairs or fibers associated with each other in a ferrule at the base of which is placed a collar. According to the invention, the collar has two zones: - a first zone which comprises means for facilitating the introduction of the bristles or fibers inside the ferrule by allowing regular joining of the base of the bristles or fibers to the by means of a layer of glue and loosely holding the bristles or fibers over a determined height inside the shell, - a second zone which has means for maintaining and clamping the bristles or fibers over a low height.

Description

The present invention relates to a brush which has a collar placed

at the base of a ferrule intended

  to maintain hair or fibers.

  It will find its application in the field of the manufacture of brushes, intended especially for painters, in which the hairs or the fibers are trapped on at least a part of their length, to

  the inside of a ferrule extended by a handle.

  Currently, the brushes which have such ferrules comprise a collar made by means of a string or wire of small diameter of a metallic material such as copper or iron or a plastic material, wound on at least part of the length

hair beyond the ferrule.

  However, these strings have many disadvantages of use and in particular, as and when the use of brushes, it appears a fraying of the string that can go to its tear, which has the effect of reducing the bridle and effectively maintain the hair or fibers, this

  which is detrimental to the correct use of the brush.

  Similarly, the son of small metal section or synthetic material, in the long run become less resistant and break, which has the effect of reducing the effective maintenance of the fibers or the hairs. As a result, a reduction in the properties of the brush. It should also be noted that during the operation of making the brushes, the establishment and fixing of these strings or of these metal wires

  or synthetic is a long operation.

  Moreover, during the use of the brushes, it also appears another disadvantage resulting from the dirtying of the string by the paint or the product to be applied so that the brush becomes

quickly dirty and unsightly.

  In the case of a collar made by means of metal son of small section, there is in contact with water and air the appearance of corrosion such as rust which weakens the collar and makes the brush dirty and unsightly. Finally, a major disadvantage of such collars made of strings lies in the fact that during the use of the brush, the fiber of the string throat product to apply and inflates It follows that the product that course of use can be introduced inside the ferrule is then trapped in it since the string sip is a barrier that prevents its exit In the long run, it results in a decrease in the softness properties of the bristles. or brush fibers, which affects the setting up

  homogeneous and regular product on the support.

  To overcome these drawbacks, it has been thought to produce a collar of plastics material or of material which has suitable mechanical characteristics of flexibility. This collar is fitted inside the shell and the bristles or fibers are held on at

  at least part of their respective length.

  In practice, such collars are difficult to implement because they must be placed on the brush after mounting being engaged around the shell. This introduction is carried out by the free base of the fibers or bristles Gold, since the outer transverse dimension of the ferrule is greater than that of the bristles or fibers, it is necessary to carry out a temporary maintenance of these beforehand. the introduction of the collar what is conceived is long and

tedious.

  In addition, because of the frustoconical dimension of the ferrule, the fastening of the collar by fitting on the ferrule proves to be unstable so that it is not uncommon for this collar to slide from the position in which it should be placed. to come clamping the bristles or the fibers over a length greater than the initially planned length This sliding has the consequence of causing a hardening of the brush due to the blockage of the hairs or the fibers which can not have any more flexibility, which one the design is prejudicial to ensure a consistent and regular implementation of the product

to apply on a support.

  Moreover, this sliding can even go to a total clearance of the brush collar so that it is almost impossible to put it back in place once it is out, the brush then becoming unusable. Whatever the shape or size of the ferrule and collar, these brushes must have bristles or fibers that have flexibility and flexibility characteristics compatible with their use. This flexibility and flexibility of the bristles or fibers also depend on the maintenance and the retention of the hairs or fibers sufficiently loosely inside the shell on a given height and their attachment to their base

  inserted inside the ferrule.

  Indeed, it has been found during use, that a homogeneous and regular bonding of the base of the bristles or fibers influences the properties of flexibility and flexibility of the part of the bristles or fibers used for the application of the product on a

support.

  Nowadays, because of the assembly techniques of the brushes used, this joining of the base of the bristles or fibers by means of a layer of thermosetting glue is not always satisfactory, which has the consequence of reducing the

  capabilities of using such brushes.

  The object of the present invention is to provide a brush which comprises a collar which has a limited height while ensuring effective bridle or bristle which provides flexibility and flexibility of

  these meet the needs of painters.

  The use of a neck of low height according to the invention makes it possible to place the zone of the fibers or the hairs located outside the necks in the vicinity of the zone of the fibers or the hairs which are retained inside the ferrule which increases the flexibility properties of

fibers or hair.

  An object of the present invention also lies in the fact that the introduction of fibers or bristles inside the collar makes it possible to obtain a positioning of the base of the bristles or fibers inserted inside the ferrule which allows their homogeneous and regular bonding by means of a layer of glue

thermosetting.

  Another object of the present invention lies in the fact that it avoids the phenomena of retaining the product in the rings constituting the collar as is frequently encountered in practice with snares of

great height.

  Another object of the present invention lies in the fact that it allows immobilization of a part of the length of the collar inside the ferrule, avoiding tearing of the collar relative to the ferrule making the ferrule

unusable brush.

  Another object of the present invention lies in the fact that it allows a better adaptation of the

  fibers or hairs to the nature of the product to be applied.

  This adaptation favors the use of these brushes

  whatever the chemical and / or physical properties

  chemicals of the product to be applied and in particular these brushes allow a correct application of the products whose viscosity can be fluid, semi-thick, thick, pasty or even in the form of gel Thus, it is possible to apply, on any support a product corresponding to the evolution of current paintings,

  ensuring a homogeneous and regular distribution of it.

  Another object of the present invention is that the collar and the ferrule are integral or independent of each other and that they can be made of the same material or in different materials. For this purpose, the brush intended to apply liquid or pasty products to a support comprising a gripping means constituted by a handle and means for applying products consisting of a head comprising a tuft of bristles or fibers associated with each other in a ferrule at the base of which is placed a collar is characterized in that the collar has two zones: a first zone which comprises means for facilitating the introduction of the bristles or fibers inside the ferrule by allowing a solidarization the base of the bristles or fibers by means of a layer of glue and a loose support of the bristles or fibers to a determined height inside the shell, a second zone which has means for holding and clamping the bristles; hairs or fibers on a low height. The invention will be well understood on reading

  the following description accompanied by the attached drawings

  which form an integral part of which the single figure shows a collar according to the invention shown in partial section in its right part in an axial plane. The present invention relates to a brush which comprises a collar placed at the base of a ferrule

  intended to maintain hair or fibers.

  It will find its application in the field of the manufacture of brushes in which the hairs or the fibers are imprisoned on at least a part of their length inside a shell at the base of a

handle.

  Referring to the single figure, there is shown a handle 1 of a brush at the end of which is placed a tuft of bristles or fibers 2 inserted over at least part of their length inside a ferrule 3

  associated with a collar 4 clamping according to the invention.

  In the embodiment shown, the

  ferrule 3 and collar 4 are independent of each other.

  Of course, this embodiment is not limiting and it is quite possible in other embodiments to have a shell 3 integral with the

  collar 4 constituting a one-piece piece.

  The handle 1, the shell 3 and the collar 4 have a symmetry of revolution about a vertical axis E Of course, this form is in no way limiting and it is quite possible to use a collar 4 according to the invention to be placed on brushes which have other shapes in

application function.

  The handle 1 is preferably made of a material such as wood and in essences which make it possible to avoid variations in the properties of

  particular function of climatic differences.

  It has dimensions that allow a good holding in hand Similarly, it is possible to realize, in other embodiments according to the needs, the handle 1 from hard plastics such as

for example polypropylene.

  The ferrule 3 ensures the liasion between the handle 1 and the tuft of bristles or fibers 2 It is made of a material that has surface properties that avoid phenomena of adhesion of particles such as for example metal or plastic They have a frustoconical shape of revolution about the axis E. The handle 1 has a frustoconical shape whose outer diameter is smaller than the inner diameter of the ferrule 3 in order to engage within it on the least part of its length by being secured to it by any suitable means known to those skilled in the art. Over a length H, the shell 3 encloses the tuft of hairs or fibers 2 which leaves at its end 5

of smaller diameter.

  The bristles or fibers 2 are joined to each other by means of a layer 6 of thermosetting glue applied to their base 7 located inside the shell 3 in the vicinity of the soidarization zone of the end of the handle 1 or set back

  of it according to the manufacture.

  This glue is, for example, a two-component epoxy glue that is resistant to the various solvents used in order to ensure that the base 7 of the fibers is secured and held effectively over a sufficient height.

or hair 2.

  The collar 4 is made of a flexible material

  and flexible such as for example a plastic material.

  It can be made of the same material as that in which the shell 3 is made or in a different material It has a tubular frustoconical shape of revolution about the axis E so as to marry at best the

  inner face of the shell 3 on a height H ,.

  The height H 1 of the collar 4 inserted inside the ferrule 3 is at most equal to the height H 2 of the bristles or fibers 2 engaged in this ferrule 3 to prevent the protruding phenomena of the collar 4 with respect to the tuft

hair or fiber 2.

  According to the invention, the collar 4 has two zones Z, and Z 2 The zone Z is inserted inside the ferrule 3 over a height H 3 It has a frustoconical shape complementary to that of the ferrule 3 in order to avoid it being torn off in a direction parallel to

  the S axis that would make the brush unusable.

  The base 8 of this zone Z, comprises means for facilitating the introduction of the bristles or fibers 2 inside the shell 3 These means are constituted by a beveled annular groove 9 which allows to obtain on the one hand a regular distribution of the base 7 of the bristles or fibers 2 allowing their homogeneous joining by means of the adhesive layer 6 to a height H 5, variable depending in particular on the manufacture, and secondly, a loose retention of the bristles or fibers 2 inside

of the ferrule 3 on a height H 6.

  With this annular groove 9, the base of each fiber or each hair of the tuft 2 is in contact with the adhesive layer 6 to ensure its effective maintenance This fastening increases the properties of flexibility and flexibility unbound areas of hairs or fibers 2 and thus increase the

  Brush use capabilities.

  As a result, the fibers or the hairs of the tuft 2 are held in the neck 4 which acts as a tutor by allowing effective use and adaptation of the brush whatever the nature and the properties of the product to be applied, and in particular which than

either its viscosity.

  The zone Z 2 externally has a substantially cylindrical shape of revolution about the axis E and a substantially constant inner section. It consists of four annular lines. The internal section of each annular line 10 is greater than the internal section of the zone Z. and preferably at most

  equal to that of the part at the base of ferrule 3.

  To facilitate and increase the retention and retention of the collar 4 inside the shell 3, this collar 4 has securing means 11 which cooperate.

  with complementary members 12 placed on the ferrule 3.

  For example, the inner face of the zone Z of the collar 4 has an annular groove 13 of revolution about the axis E in which engages a complementary rib 14 that has the inner face of the shell 3. In this embodiment , the annular groove 13 is located at the junction zone

  between the zone Z, _ and the zone Z 2 of the collar 4.

  Of course, other implementations of securing means and keeping within the reach of ordinary skill in the art could have been envisaged without

  as far out of the scope of the invention.

  This groove 13 is constituted by a bottom 15 associated with a frustoconical chamfer 16 It is formed on the shell 3 near the end 7 which abuts against the base of the zone Z 2 to ensure the immobilization

  relative of ferrule 3 and collar 4.

  According to the invention, the annular lines 10 have a height in the direction of the hairs or

2 fibers limited.

  Thus, it avoids the phenomena of retaining the products inside the rings as this is

  frequently encountered with high necks 4.

  In addition, it should also be noted that this collar 4 has a limited height which makes it possible to ensure clamping and effective retention of the bristles or fibers 2 of the brush while avoiding the phenomena of product introduction inside the collar. 4 in the zone Z 1 that night

  in the long run to the suppleness of the hairs or the fibers.

  Of course, other implementations of the present invention within the reach of those skilled in the art could have been envisaged without departing from the

part of it.

Claims (6)

  A brush for applying liquid or pasty products to a support comprising a gripping means constituted by a handle and means for applying products consisting of a head comprising a tuft of bristles or fibers associated with each other in a ferrule at the base of which is placed a collar, characterized in that the collar has two zones: a first zone which comprises means to facilitate the introduction of the bristles or fibers inside the shell by allowing a regular attachment of the base of the bristles or fibers by means of a layer of glue and a loose hold of the bristles or fibers to a specified height within the shell, a second zone which has means for holding and clamping the bristles or fibers on a weak   height. 2 brush according to claim 1, characterized in that the ferrule is integral with the collar.   3 brush according to claim 1, characterized in that the ferrule is independent of the collar.   Brush according to Claim 1, characterized in that the first zone is inserted at   inside the ferrule and in that the second zone is placed at the base of the ferrule.   Brush according to claim 1, characterized in that the means for facilitating the introduction of bristles or fibers are constituted by a beveled annular groove constituting a guide ramp 30 formed at the base of the part of the collar located at the inside of the shell.   Brush according to Claim 1, characterized in that the means for maintaining and clamping   the bristles or fibers consist of at least one flexible annular line.   7 brush according to claim 1, characterized in that the collar has a frustoconical tubular shape of revolution about a vertical median axis to cooperate with the inner face of the ferrule. 8 brush according to claim 1, characterized in that it has means for securing with complementary bodies of the ferrule to prevent it from being pulled out.   9 brush according to claim 8, characterized in that the securing means are constituted by an annular groove of revolution to cooperate with the ribs complementary shape of the inner face of the ferrule.   Brush according to Claim 9, characterized in that the rib is arranged in the vicinity from the base of the ferrule.