MXPA06005611A - Resin twisting brush - Google Patents

Abstract

A resin twisting brush, wherein the material of the shaftpart of an interdental brush (the twisting brush) is formed of a resin material having shape restorability and elasticity to provide the brush with proper elasticity, shape restorability, and flexibility and prevent the shaft part from being deformed nor broken so that the shaft part can be deformed and easily inserted when the interdental brush (the twisting brush) is inserted into a narrow portion such as a hourglass-shaped interdental space. Thus, an interdental cleaning assisting tool well matching the three-dimensional shape of an interdental part, capable of maintaining straightness without causing permanent deformation when the shaft part is bent despite the fact that the tool can be inserted into the interdental part restricted in the inserting direction, providing less pain and less uncomfortable feeling and providing comfortable feeling when the tool comes into contact with a tooth and a gum during the cleaning operation, and not damaged also by repeated bending can be provided.

Description

SMALL DIAMETER BRUSH AND TORNED RESIN Technical Field The present invention relates to the fact that the plaque that adheres to the surface of the tooth and the periodontal tissues provides a fertile field for the bacterium that causes decay and pyorrhea, two major causes for tooth loss. The present invention is directed to an optimal oral cleansing system for controlling plaque between adjacent teeth, a particular cause of periodontal disease, a mascara brush used to make up paints and the like, as well as a small twisted brush optimal for cleaning or polishing a tube in curve form and small diameter.

Background In general, the two main diseases that cause tooth loss are cavities and pyorrhea; In particular, in cases of gingival recession due to periodontal disease they are not susceptible to interdental plaque by a common toothbrush, so the use of a dental cleaning system such as an interdental brush is necessary.

A typical cleaning system, an interdental brush, is a twisted brush with nylon bristles concentrically wrapped around a twisted metal filament, but these types have been plagued with numerous problems that limit their usual placement for tooth care: the tip of the brush touches the gum during interdental insertion, frequently injuring the gum; this causes discomfort when the tip of the metal touches the tooth; Repeated use when brushing causes the breaking of the twisted metal filament due to the use of metal.

When the cleaning is done between concave teeth of three dimensions, as in the case of the root, the metal that constitutes the interdental brush not only resists the insertion causing problems, but also causes the risk of leaving sections uncleaned if the brush stops. Clean is pre-bent to accommodate insertion. The use of a nickel-titanium alloy is conceivable to avoid this problem, but if a formation method similar to that used for a twisted brush occurs, the straightening of the metal filament could cause the nylon bristles to fall off. Therefore, the resin materials have been studied as Materials that constitute the root; but since the interdental brush requires the section of the brush to penetrate through a 0.5 mm diameter space for interdental cleaning, it has been difficult to mold to insert nylon bristles into a resin material of this diameter.

Other methods include implanting nylon stacks electrostatically in the radial direction in a memory or stick filament or resin figure, but it is necessary for the diameter of the stem for the penetration of the brush section in a space of 0.8 mm in diameter to about 0.4mm or less. It has been difficult to implant nylon bristles uniformly of around 2mm to 4mm in total length in a filament rod of this diameter and, additionally, to find an adhesive without biological risks to prevent the loss of bristles. The applications of these twisted enamel brushes also includes cosmetic tools such as cosmetic mascara brushes and others, where basically the material of the stem has been a metal.

Additionally, this type of twisted figure brush is also used to polish or clean several tube-shaped items, but use in a complex curved section left no other option than connecting material to the handle if it is made of metal because the depth of penetration was limited.

As described above, control of the interdental plate is very useful. One of the objectives of the present invention is to replace the typical material of metal waist with a material that provides an image of a soft feeling that gives an auxiliary interdental cleaning device that, when used for oral interdental cleaning, does not hurt the gum with the tip of the cleanser of the central portion.

This allows for easy insertion without causing simultaneous pain or discomfort, and also allows insertion without resistance between the teeth, as in the form of root maintains firmness without any permanent deformation when the section of the stem is bent, allows placement to the interdental configuration of three dimensions and cause slight discomfort when coming into contact with the tooth and the gum during the cleaning operation, presents minimal faults on continuous folds; and also for use in a safe cosmetic mascara brush to be used near the eye.

Other applications include replacing the stems with a strong and recoverable figure material to be used to polish and clean various tube-shaped articles with complicated curved structures to allow a deeper depth of penetration.

In general, small twisted brushes used for interdental functions require twisting a stainless or similar filament that forms the stem portion, thereby holding the nylon bristles in place.

The present invention, to be able to replace the stem of the conventional interdental brush with a resin material having optimum flexibility and strength (recovery of the figure) implies, as in the case of making a conventional interdental metal brush, fixing the nylon bristles in a perpendicular direction between two pieces of resin material and twisting one end, while holding the another, thereby holding and generating a twisted brush using a resin material.

However, it is difficult for the resin material of the stem to maintain its twisted configuration, and also to provide flexibility and figure recovery, which are the desired properties of the initial objective. Therefore, the present invention is directed by a small-diameter resin twisted brush made through the connection of two pieces of resin filament material and thermally fusible resin filaments, thereby melting only the resin to fuse the two pieces of material of resin forming a limb with filaments such as nylon bristles, so that the brush can maintain its twisted configuration with the radially projected filaments (fibers) attached which prevent the bristles from falling off.

The aforementioned means provide the following functions.

Advantage The small diameter and twisted resin brush as described in claims 1 to 5 reduces any fear when used close to the eyeball as in a mascara brush because the stem is not made of metal as in the case of twisted brushes conventional there is no discomfort due to a Electric current between saliva and metal when it is used orally or risks due to allergy induced by the metal when it is used for a long period of time.

In addition, as the brush structure is the same as that of a conventional twisted brush, the performance of the bristle is not lost, and it is possible to take advantage of the features of each resin material, thus resulting in the excellent effects of the flexibility not present in the conventional metal twisted brush, maintaining the firmness due to the recoverability of the figure immediately after use under bending conditions and providing a soft comfort.

Similarly, this twisted brush is made of a resilient, flexible, recoverable resin material with similar properties to the stem, so that the entire brush, from the tip to the extended support is strong, flexible and capable of recovering the figure, so that it can respond to a cleaning or polishing operation of a variety of tube-shaped articles without importing complicated curvilinear figures at greater depth.

The nylon bristles referred to herein may not be limited to resin materials, but may be made of a metal material; the resin material can be bonded to polishing particles, which makes it possible to produce a twisted brush with a great polishing capacity according to the cleaning and polishing conditions, while the trunk maintains shape recovery or flexibility.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows the radially projected resin filaments (fibers) uniformly arranged in parallel and joined in a cross direction perpendicular with the resin filament rods and the thermally fusible resin filament rods.

Figure 2 shows the direction of cut stem B-B 'of figure 1 Figure 3 shows a cross section of Figure 5 showing the manner in which the radially projected resin filaments (fibers) are uniformly arranged in parallel and joined in a cross direction perpendicular with the resin filament rods and the filament rods of thermally fusible resin.

Figure 4 shows a cross-section of Figure 5 and illustrates the manner in which a twisted brush with radially projected resin filaments (fibers) is formed by holding the tip of the stem while the rear part of the stem is twisted.

Figure 5 shows a cross section in the direction of the stem showing the manner in which the thermally fusible resin has melted and linked with super heat (sic) while a brush twisted with radially projected resin filaments (fibers) is formed and sustained to by grasping the tip of the stem while twisting the back of the stem, Figure 6 shows the manner in which the arc of the twisted brushes is continuously formed at fixed intervals, such as to shorten the cooling and holding time per piece to increase production efficiency.

Figure 7 shows how the radially projected resin filaments (fibers) evenly arranged in parallel are joined in a cross direction perpendicular to the resin filament rod covered with thermally fusible resin.

Figure 8 shows a cross section in the direction of the stem showing the way in which the thermally fusible resin remains melted and bonded by super heat (sic) while a brush twisted with radially projected resin filaments (fibers) is formed and held through of grasping the tip of the stem of the strands of filaments covered with thermally fusible resin while twisting the back of the stem.

DETAILED DESCRIPTION OF THE INVENTION From now on the personifications of the present invention are explained with reference to the appended drawings. Figures 1 to 8 are examples of manufacturing steps and personifications for working the invention, in these figures, as symbols represent similar objects where the construction of the basting is similar to that conventional shown in the drawings.

As shown in Figure 1, the radially multiple projection resin filaments (fibers) are selected, parallel to and stapled with root resin filament 2 rods with thermally fusible resin filament rods 3 parallel thereto. Figure 2 shows the manner in which the assembly is viewed from the direction of the root, in this condition, rotating by holding the portion of the tip of the root 4 and the rear part 5 causes the radial projection of the resin filaments (fibers) 1 to become helically oriented around the root as the central axis of a concentric circle, as shown in Figure 3, resulting in a twisted brush figure. Treating with full assembled heat while the previous state is maintained, melts only the thermally fusible resin filament rods 3 as in Figure 4, thereby fusing each of the radially projected resin filaments (fibers) 1 which constitute the fences with the two or more rods of resin filament 2 generating a twisted brush of resin of small diameter as shown in figure 5 which maintains the shape of the twisted brush that prevents the bristles from falling, prevents the rods from resin filament that constitute the portion of the twisted root to deform and that has helical bristles. In this case the time for the heat treatment can be during or before the twisting step. To shorten the time required to retain each twisted brush from the tip of the stem 4 and the rear part of the stem 5 until the rare thermally fusible resin filament 3 has cooled and solidified, any number of twisted brushes (units) may have radially projected resin filaments (fibers) positioned at fixed intervals flanked by sections lacking stem bristles (figure 6) and then be twisted and heat treated, thereby allowing an efficient production to be increased.

Since the cutting surface is expected to have sharp edges, it is preferred to hold the section of the stem 4 at an ultrasonic radio frequency or machine-based treatment to remove these edges in order to obtain a smooth feel.

As shown in Figure 7, the construction of the radially projected resin filaments (fibers) 1 with resin filament rods covered with thermally fusible resin 7 and heat treatment, during, before or after the twisting step, is fused as shown in Figure 8, only the thermally fusible resin portion of the resin filament rods covered with thermally fusible resin 7, thereby fusing the radially projected resin filament rods (fibers) 1 together with the rods of Resin filament 2 constituting the nuclear portion of the resin filament rods covered with thermally fusible resin 7 thereby maintaining a twisted brush shape which prevents the bristles from falling off, prevents the resin filament rods that constitute the portion of the stem are deformed and forming helical bristles.

The resulting small diameter resin twisted brush when used by connecting it to the motion axis of an electric interdental cleaning device that generates a sliding movement, a rotating movement or a rotation-slip movement as in the applications patent number 2000-380686 and 2001-230207 or in a manual interdental cleaning device.

Incidentally, the small diameter, crooked resin brush of the present invention is not limited to the aforementioned manufacturing steps and embodiments, so obviously a variety of modifications can be made in which the scope does not deviate from the essence of the invention. the present invention, as well as for the resin rods used for the stem, the number of thermally fusible resin filament rods, the materials and the selection conditions of the radially projected resin filaments (fibers) (in terms of selection in a state of mixing or selection states) the inclusion of cleaning particles, the use of metal and the like.

Potential Utility in the industrial The small diameter and twisted resin brush of this invention which does not use metal in the section of the stem will be free of any discomfort due to the galvanizing current between the saliva and the metal nor is there any concern about any allergy induced by induction of the metal, when it is used as an oral cleansing device, as an interdental brush for the control of plaque between teeth that can cause pernicious disease, and while structurally it is the same as a conventional twisted toothbrush, the stem is provided with necessary supplements, maintains its erect form (recoverable shape) immediately after use in a form of deformity or bending it suffers only rarely from stress fatigue due to repetitive use, thereby there is less chance of rupture, resulting in a highly durable interdental brush. This feature can be taken advantage of and used appropriately as the tip of a brush for connection to the motion axis of an electric interdental cleaning device that generates a sliding movement, a rotary movement, or a sliding-rotary movement as in the Japanese patent applications 2000-380686 and 2001-230207. Moreover, this metal-free twisted brush allows a cleaning, polishing or coating operation for complicated places that are difficult to reach by a conventional metal twisted brush, making this possible not only to take advantage of the characteristics of the section of the resin stem, but also to additionally achieve a deeper penetration than with a conventional twisted metal brush, which allows to perform cleaning and polishing operations for parts such that without parts of a machine with a complicated shape it would have been impossible to clean not leaving any corner without cleaning.

Unlike a metallic twisted brush with the harsh image of the metallic feel, the soft feel of the resin reduces fear and thus provides comfort when used close to the eye as is the case with a mask brush used as a cosmetic for eyelashes .

A small diameter twisted brush in which the material for interdental brushing (twisted brush) is constituted of a resin material having a coating that gives it strength, thus having a combination of appropriate strength, recovers its original shape and that prevents the stem from deforming or breaking.

Claims (5)

1. -A small diameter twisted resin brush, characterized in that where the stem is made, with a multiple number of radial projection filaments (fibers) mounted on and clamped in two or more root rods, by the rotation of the two ends of the aforementioned root rods form bristles around the root; where: The said root rods of the rotated brush are formed of rods of resin filaments (fibers) and rods of filaments of thermally fusible resins (fibers) aligned in parallel; Y The aforementioned sticks of thermally fusible resin filaments are melted during, before or after a step of keeping the filaments of the radially projected resin (fibers) moistened in the root rods, supporting the root rods at both their ends and rotating to form a crooked brush figure; thereby fusing the filaments (fibers) of radial projection forming the bristles, each with two or more rods of resin filaments; Y By keeping the shape of the twisted brush that prevents the bristles from falling off, it prevents the sticks of resin filaments that form the twisted root portion and have helical bristles.

2. - A small diameter and rotated resin brush according to claim 1 further characterized in that the root rods are made of thermally varnished fusible resin that have been pre-coated with a thermally fusible material, and heat treated during, before or after the passage of the twist, to fuse only the thermally fusible portion, thereby, by fusing the filaments of the radially projected resin (fibers) with each of the filaments of the root rods varnished with thermally fusible resin; Y By keeping the figure of the brush rotated that prevents the bristles from falling off, it prevents the rods of resin filaments that form the rotated root portion and the helical bristles. * The word "resin" appears inconsistently in the text.

3. - A small diameter twisted-resin brush further characterized in that the brush is made with improved productivity when cutting all the mixed intervals, a continuous twisted brush that is generated by twisting the center of the resin material or the thermal fuses of any length, as indicated in claims 1 and 2, it keeps the fibers radially projected forming the bristles clamped at intervals, thereby shortening the time by rotating brush to cool and maintain after the heat treatment. * ["Thermally fusible fibers" may refer to the thermally fusible resin that covers the resin rod filaments.]

4. - A small diameter brush of twisted resin, further characterized in that the size of the bristle is coded using a pre-pigmented resin for the rod resin filament or the thermally fusible fibers as explained in Claims I and 2.

5. - A brush of small diameter and twisted resin, further characterized in that the brush is of small diameter and free of metal, as indicated in claims 1 and 2 is subject to an ultrasonic, radio frequency or machine-baked treatment, of that mode by removing the sharp ends generating a smoothed figure, thereby facilitating the insertion of the brush.