JP5063047B2 - Brush for painting - Google Patents

Description

  The present invention relates to a brush for painting in which a handle and a hair bundle component can be separated.

  Conventionally, a brush described in Patent Document 1 is known as a brush capable of separating a handle and a hair bundle component. In this conventional brush, bristles are bundled with a cylindrical member having an oval cross section to form a hair bundle constituent part, and the cylindrical member is fitted into a recess formed on the distal end side of the handle. Then, a linear convex part for fitting is formed on the outer periphery of the cylindrical member of the hair bundle constituting part, and a linear groove matching the linear convex part is formed on the inner wall of the concave part on the distal end side of the handle. ing. And the linear convex part of the cylinder member outer periphery of a hair | bristle bundle structure part is slid and fitted to the linear groove | channel on the front end side of a handle | steering_wheel, and it couple | bonds both. With such a structure, the hair bundle component can be easily attached to the handle. It is also possible to remove the hair bundle component once attached by sliding it against the tip of the handle.

Further, in the brush as described above, when a force that moves in the direction of the linear convex portion and the linear groove, that is, the sliding direction at the time of assembly, is applied during coating, the handle and the hair bundle component portion move relative to each other, There is a risk that they may be displaced or separated. Therefore, in order to prevent the relative movement, the fitting between the linear protrusion and the linear groove must be tight.
JP-A-7-108010

  In the conventional brush as described above, it has been necessary to tightly fit the linear convex portion and the linear groove so that the handle and the hair bundle constituent portion do not move relative to each other. Therefore, when trying to positively separate the handle and the hair bundle constituent part, there is a problem that the linear convex part and the linear groove are difficult to come off. In particular, when used for many years, the paint penetrates between these linear protrusions and linear grooves, and the paint functions like an adhesive. There is a problem that it is difficult to separate the handle and the hair bundle constituent part.

  In particular, in recent years, from the viewpoint of protecting the natural environment, it has been required to dispose of hair bundles or hair bundle constituent parts with paint as industrial waste. This is because a hair bundle constituent part containing a lot of resin paint will generate a toxic gas when it is incinerated, thereby polluting the natural environment. In other words, if a resin paint is included in the hair bundle component at the time of painting, the resin paint will stick to the hair bundle component, so it is almost impossible to completely wash off the resin paint from the hair bundle component after use. It becomes impossible. In addition, if the brush has been used for many years, the residual amount of the resin paint stuck to the hair bundle constituent part also increases, so that the hair bundle constituent part has more environmental pollution factors. Therefore, even if the handle is formed of a material that does not impair the natural environment, for example, a biodegradable resin, as long as the hair bundle constituent part cannot be removed from the handle, including the handle of the biodegradable resin, Must be processed.

Therefore, there is a problem that even if the pattern is formed of biodegradable resin for the purpose of protecting the natural environment, the intended purpose of environmental protection cannot be achieved unless the pattern and the hair bundle component can be separated. It was.
An object of the present invention is to provide a painting brush that can simultaneously solve the contradictory problem that the handle and the hair bundle constituent part are difficult to come off during painting and are easy to come off during disposal.

A first aspect of the present invention is a resin handle obtained by integrating a pair of clamping pieces having a clamping part at a distal end thereof into a bifurcated shape on the base end side, and a hair bundle constituting part clamped between the pair of clamping pieces The hair bundle constituent part includes a hair bundle in which a proximal end of a thermoplastic resin hair is welded to provide a welded portion, and a cylindrical holding member that surrounds and holds the hair bundle, and When either one of the sandwiching part or the holding member is provided with a convex part, the other part of the sandwiching part or the holding member is provided with a concave part that fits into the convex part, and when the convex part is fitted into the concave part, When the handle and the hair bundle component are in a connected state and the convex portion is removed from the recess, the handle and the hair bundle component are separated, and the pair of sandwiching portions sandwich the hair bundle component. A painting brush provided with clamping force holding means for restricting the pair of clamping parts from being opened in a state where The welded portion has a flange portion that is integral with the welded portion and protrudes outward from the hair bundle, and the holding member has an inner periphery of at least one end of the holding member that is more than an outer periphery of the flange portion. On the other hand, from the one end of the holding member, the hair bundle is inserted in a direction opposite to the base end of the handle, and the flange portion is hooked on the one end of the holding member. The hair bundle is prevented from coming off in the direction opposite to the proximal end of the handle, and the hair bundle can be pulled out from the holding member in the direction of the proximal end of the handle, and either the holding part side or the holding member side. On one side, a pressing portion for pressing the welded portion is provided, and when the handle and the hair bundle constituting portion are connected, the welded portion is pressed by the pressing portion, and the axial direction of the hair bundle with respect to the holding member in that a configuration for restricting the movement of With a butterfly.
Note that the concave portion includes a through hole.

According to a second aspect of the present invention, there is provided a resin handle obtained by integrating a pair of sandwiching pieces each having a sandwiching portion at a distal end thereof into a bifurcated shape at a base end side thereof, and a hair bundle sandwiched between the pair of sandwiching pieces. And a pair of holding parts for holding the pair of holding parts to be opened in a state where the pair of holding parts are holding the hair bundle. The base end of the plastic resin hair is welded to provide a welded portion, and the welded portion has a flange portion that is integral with the welded portion and projects outward from the hair bundle, and is opposed to the pair of sandwiching portions. A linear recess that fits the flange portion is provided on the surface, the flange portion is fitted into the linear recess to hold the hair bundle between the sandwiching portions, the flange portion is removed from the linear recess, The hair bundle can be separated, and a holding part for holding the flange part is provided on the clamping part side. It has a feature in that a configuration to press the welded portion with the flange portion by the pressing portion.

According to the first and second aspects of the invention, since the so connecting by sandwiching the bristle bundle structure portion or bristle bundle by the pair of holding pieces in which the handle bifurcated tufts component or tufts from the handle When separating the two, a force may be applied in a direction in which the pair of sandwiching pieces are separated from each other. Therefore, a large force is not required when separating the hair bundle component or the hair bundle from the used brush, and it is not necessary to touch the hair bundle component or the hair bundle with the paint. The hair bundle constituting part or the hair bundle can be separated without contaminating the hair .

Therefore, for example, the material of the handle, the material and there is no emission of toxic substances while left in the combustion time and nature, if such in forming a biodegradable resin such as polylactic acid, tufts component or tufts It becomes possible to separate only as industrial waste. By separating in this way, it is possible to reduce the load of waste treatment compared to the case where the entire brush is discarded as industrial waste.
In addition, since the holding piece holding means for restricting the opening of the holding piece while the holding piece holds the hair bundle constituting part or the hair bundle is provided, a force acts on the hair bundle constituting part or the hair bundle during painting. Even so, the clamping piece does not easily open. Therefore, the hair bundle constituting portion or the hair bundle can be reliably held during the painting operation, and the hair bundle constituting portion or the hair bundle does not wobble or come off during the painting operation. Therefore, even if the brush of this invention is a structure which can isolate | separate a hair | bristle bundle structure part or a hair | bristle bundle easily, workability | operativity of a painting operation | work will not deteriorate.

Further, according to the first and second aspects of the invention, and adhesives, without using a bundling member can be summarized tresses.

Furthermore, according to 1st invention, a hair | bristle bundle can be connected with a holding member using the flange part which is integral with a welding part and protrudes outside a hair | bristle bundle.
Further, according to the first invention, the hair bundle constituent part is constituted by the hair bundle and the holding member surrounding the hair bundle, and the hair bundle can be removed from the holding member. Can be easily separated, and the hair bundles can be further separated from the separated hair bundle constituting portion and separated and discarded. For example, when the holding member is made of a combustible material and there is no adhesion of paint, only the hair bundle can be discarded as industrial waste.
In addition, according to the first invention, since the flange portion is pressed by the pressing portion provided on the holding portion side or the holding member side and the movement of the hair bundle in the axial direction is restricted, the hair bundle is coated. It won't rattle inside.

  According to the second invention, since the concave portion corresponding to the flange portion that is integral with the welding portion of the bristle bundle and projects outward from the bristle bundle is provided in the pinching portion, the flange portion is directly connected to the pinching portion. The hair bundle can be attached to the handle by fitting into the recess. That is, the hair bundle can be directly connected to the handle using the flange portion. In this way, the number of parts can be reduced as compared with the first invention.

First, reference examples shown in FIGS. 1 to 4 will be described, and then each embodiment of the present invention will be described.
The brush of this reference example shown in FIG. 1 has a hair bundle constituting portion 2 attached to the handle 1A, and the handle 1A has a pair of plate-like sandwiching pieces 3 with its tips bifurcated as shown in FIG. , 3 and is integrally formed using a resin material as a whole. At the time of molding, the pair of sandwiching pieces 3 and 3 are formed substantially in parallel, and the distance between them is made smaller than the width W of the bundling member 5 (see FIG. 3) of the bristle bundle component 2 described later. ing. However, both sandwiching pieces 3 and 3 retain elasticity that can be expanded without damaging them.

Moreover, the front end side of each clamping piece 3 and 3 is made into the flat clamping parts 3a and 3a with a larger area than another part, and the hair | bristle bundle structure part 2 is clamped by these clamping parts 3a and 3a. Further, a pair of retaining holes 3b, 3b, which are the recesses of the present invention, are passed through the sandwiching portions 3a, 3a. The retaining holes 3b, 3b are mutually on the diagonals of the sandwiching portions 3a, 3a. It is formed with keeping the interval.
1 and 2, only the retaining holes 3b and 3b of one clamping piece 3 are shown, but the other clamping piece 3 is also provided with the retaining holes 3b and 3b in exactly the same manner.

  The handle 1A as described above is made of a biodegradable resin such as polylactic acid, a resin whose main component is a substance that does not generate harmful substances during thermal decomposition, such as cellulose or paper. Therefore, even if the handle 1A is incinerated or left naturally, no harmful substances are generated and the natural environment is not impaired.

On the other hand, the hair bundle constituting unit 2 shown in FIG. 3 is configured by bundling the proximal end side of the hair bundle 4 with a tubular bundling member 5. In this hair bundle constituting unit 2, after inserting a hair bundle 4 of a necessary size into the bundle member 5, the hair bundle 4 and the bundle member 5 are bonded with an adhesive. The bundling member 5 and the hair of the hair bundle 4 may be made of resin, and the hair bundle 4 may be bonded to the bundling member 5 by heat welding.
Further, on the side surface of the bundling member 5, columnar convex portions 5 a and 5 a that fit snugly into the retaining holes 3 b and 3 b are formed at positions corresponding to the retaining holes 3 b and 3 b provided in the clamping portion 3 a. is doing. The bundling member 5 thus formed can be easily formed by resin molding. The columnar convex portion 5a is a convex portion provided in the hair bundle constituting portion of the present invention.

And in order to attach the said hair | bristle bundle structure part 2 to the handle | pattern 1A, the clamping parts 3a and 3a of the handle | pattern 1A shown in FIG. 2 are expanded, the bundling member 5 of the hair | bristle bundle structure part 2 is pinched | interposed between them, and the said convex part If 5a and 5a are inserted into the retaining holes 3b of the sandwiching portions 3a and 3a, as shown in FIG. 4, the bundling member 5 is sandwiched between the sandwiching portions 3a and 3a, and the hair bundle constituting portion 2 is attached to the handle 1A. Can do.
Since the convex portions 5a and 5a of the bundling member 5 are fitted into the retaining holes 3b and 3b of the sandwiching portions 3a and 3a in this way, the hair bundle constituting portion 2 is firmly fixed to the handle 1A. The component 2 does not fall off the handle 1A.
In addition, since the protrusions 5a and 5a and the stop holes 3b and 3b are fitted together, the handle 1A and the hair bundle component 2 can be temporarily fixed in the manufacturing process of the brush. Also improves.

Furthermore, as shown in FIG. 4, in the state where the bundling member 5 is sandwiched between the sandwiching portions 3a, 3a, the facing distance between the sandwiching pieces 3, 3 of the handle 1A is wider than the initial state. Therefore, an elastic force in the closing direction acts on the sandwiching pieces 3 and 3, and the elastic force acts as a sandwiching force on the bundling member 5.
Further, a ring 6 is fitted to the handle 1A to restrict the opening of the sandwiching pieces 3 and 3. The ring 6 has an inner peripheral shape that matches the handle 1A. By fitting the ring 6 to the sandwiching pieces 3 and 3, even if a force in the opening direction acts on the sandwiching pieces 3 and 3 during the painting operation, the sandwiching portions 3a and 3a are prevented from opening, and the hair bundle structure The portion 2 is prevented from being displaced from or detached from the handle 1A. That is, in this reference example , the ring 6 is the holding force holding means of the present invention, and is a linear member constituting the holding force holding means.

In the brush of the reference example configured as described above, the convex portions 5a and 5a of the bristle bundle constituting portion 2 are fitted into the retaining holes 3b and 3b of the sandwiching portions 3a and 3a, and the sandwiching piece 3 is formed by the ring 6. , 3 is prevented from opening, there is no possibility that the hair bundle constituting portion 2 will rattle or come off from the handle 1A when the brush is used.

  Further, when removing the hair bundle constituting portion 2 from the handle 1A, first, the ring 6 is removed from the handle 1A, and each of the holding pieces 3 and 3 is spread in the directions of arrows x and x in FIG. 3a opens and the convex part 5a comes out of the stop hole 3b. Therefore, the hair bundle component 2 can be easily removed from the handle 1A. In addition, as described above, when the holding pieces 3 and 3 are opened, it is only necessary to hold both the holding pieces 3 and 3, so that it is not necessary to touch the hair bundle constituting portion 2 with the paint. Therefore, the hair bundle constituting part 2 can be easily removed without making the hands dirty.

In the reference example as described above, the handle 1A is formed of a biodegradable resin such as polylactic acid, or a material that does not generate harmful substances even if incinerated or left to stand naturally. Only the bundle component 2 is treated as industrial waste, and the handle 1A can be incinerated normally. In this way, if the hair bundle constituting part 2 can be separated, the load of waste treatment can be reduced as compared with the case where the entire brush is treated as industrial waste.

In this reference example , the resin ring 6 is used as the holding force holding means, but the holding force holding means is not limited to this. For example, as the linear member or belt-like member of the present invention provided on the outer periphery of the sandwiching pieces 3 and 3, both are made using an elastic ring such as rubber or a U-shaped elastic U pin 7 shown in FIG. The holding pieces 3 and 3 may be pressed. These elastic rings and U pins as the holding force holding means can be removed from the handle 1A after using the brush.

Further, as the holding force holding means, a thread, a wire, or the like can be wound around the outside of the holding portions 3a, 3a so that the holding pieces 3, 3 are not opened. In any case, in the brush of this reference example , the pinching force based on the elastic force of the pinching pieces 3 and 3 acts on the hair bundle constituting portion 2, and the hair bundle constituting portion 2 is stopped by the convex portion 5a and the stop hole 3b. Therefore, the handle 1A and the hair bundle component 2 do not rattle or come off during painting. In addition, the thread or wire wound around the outside of the sandwiching portions 3a, 3a can be easily removed by cutting with scissors or nippers.

Further, the holding force holding means is not limited to a belt-like member or a linear member provided on the outer periphery of the holding pieces 3 and 3.
For example, the convex portions 5a and 5a provided on the bundling member 5 can be used as a clamping force holding means. Specifically, the protrusions 5a and 5a are lengthened so that their tips protrude from the stop holes 3b and 3b, and the protrusions are slightly larger than the inner diameters of the stop holes 3b and 3b. And when attaching the hair | bristle bundle structure part 2 to the clamping parts 3a and 3a, the convex part 5a is forcibly pushed into the stop hole 3b, and is stopped like a snap. If it does in this way, opening of clamping part 3a, 3a can be suppressed by the front-end | tip part of the said convex part 5a. And when removing the hair | bristle bundle structure part 2 after use, it is necessary to pull the clamping pieces 3 and 3 for a while, but if the clamping pieces 3 and 3 open, the convex parts 5a and 5a will stop from the stop holes 3b and 3b. Since it comes out, the hair | bristle bundle structure part 2 can be isolate | separated, without dirtying a hand.

In the above reference example , the holding portions 3a, 3a are formed with the retaining holes 3b as the concave portions of the present invention, and the bundling member 5 is provided with the convex portions 5a. However, the positional relationship between the concave portions and the convex portions is opposite. But you can. That is, a convex part may be provided in the clamping parts 3a and 3a, and a concave part may be provided in the bundling member 5 of the hair bundle constituent part.
Moreover, the shape of a convex part and a recessed part is not restricted to the said reference example , For example, a linear recessed part and the linear convex part fitted to it may be sufficient.

The first embodiment shown in FIGS. 6 to 10 is a brush configured by sandwiching the hair bundle constituting portion 8 shown in FIG. 6 with the handle 1B shown in FIG.
The hair bundle constituting portion 8 includes a cylindrical holding member 10 and a hair bundle 9, and the hair bundle 9 is crushed while melting the base end of the resin hair with heat, A welded portion 9a having a larger area than the portion is formed. By this welded portion 9a, the bristle bundle 9 has a cross-sectional area at the base end larger than that of the other portions, and a flange portion 9b protruding in the outer peripheral direction is formed.

Further, the holding member 10 is the same member as the bundling member 5 of the reference example , and the inner peripheral shape thereof is matched with the outer shape of the hair bundle 9, and a plurality of cylindrical convex portions 10a are provided on the outer periphery. It is the provided cylindrical member made of resin.
The opening of the holding member 10 is made smaller than the outer periphery of the flange portion 9b, and the outer periphery of the end portion of the holding member 10 is made to coincide with the outer periphery of the flange portion 9b. Therefore, when the hair bundle 9 is inserted into the holding member 10, the flange portion 9 b of the welded portion 9 a is caught by the end portion of the holding member 10 as shown in FIG. 8.

Further, in the first embodiment, the hair bundle constituting unit 8 is configured by simply inserting the hair bundle 9 into the holding member 10, and the hair bundle 9 is attached to the holding member 10 with an adhesive or the like as in the reference example. Do not fix. Since the flange 9b is hooked on the end of the holding member 10, the hair bundle 9 does not come out downward in FIG. 8, but if it is moved upward in the figure, the hair bundle 9 is removed from the holding member 10. Can be extracted.
That is, in the hair bundle constituting unit 8 of the first embodiment, the hair bundle 9 can be separated from the holding member 10.

On the other hand, the handle 1B shown in FIG. 9 includes a pair of sandwiching pieces 3 and 3 as in the reference example, and the hair bundle constituting portion 8 is sandwiched between the sandwiching portions 3a and 3a on the distal end side. Moreover, it is the same as that of the said reference example that the clamping parts 3a and 3a are provided with the stop holes 3b and 3b located in the convex parts 10a and 10a provided in the said hair | bristle bundle structure part 8. FIG.
However, the handle 1B of the first embodiment integrally forms a plate-like pressing portion 3c protruding inward on the inner surface of the holding portion 3a. In FIG. 9, only one clamping part 3a is shown, but the pressing part 3c is similarly formed in the clamping part 3a (not shown).
And this press part 3c is formed in the position which contacts the welding part 9a of the hair | bristle bundle 9 which protrudes from the edge part of the holding member 10, when the hair | bristle bundle structure part 8 is clamped by the said clamping parts 3a and 3a. Yes.

Therefore, when the hair bundle constituting portion 8 is sandwiched between the sandwiching pieces 3 and 3, and the plurality of convex portions 10a formed on the holding member 10 are respectively fitted into the corresponding stop holes 3b, as shown in FIG. The pressing portion 3c presses the welding portion 9a of the hair bundle 9 protruding from the end portion of the holding member 10. Since it comprised in this way, the welding part 9a is inserted | pinched between the said press part 3c and the holding member 10, and the hair | bristle bundle 9 does not move to an axial direction.
Further, also in the first embodiment, as in the reference example , the ring 6 shown in FIG. 1 is fitted to the handle 1B to prevent the holding pieces 3 and 3 from opening. However, also in the first embodiment, or using the linear members other than the ring, and thicker the tip of the convex portion 10a, and or pressed into and stopper holes 3b, also constitute a holding force holding means It doesn't matter.

Since the brush of the first embodiment also prevents the holding pieces 3 and 3 from being opened by the holding force holding means, when the brush is used, the hair bundle constituting portion 8 rattles against the handle 1B. There is no risk of detachment. Furthermore, since the movement of the hair bundle 9 in the axial direction with respect to the holding member 10 is also restricted by the pressing portions 3c, 3c provided in the sandwiching portions 3a, 3a, the hair bundle 9 does not rattle during the painting operation.

Further, when removing the hair bundle constituting portion 8 from the handle 1B, as in the above reference example , the ring 6 is removed from the handle 1B and each of the holding pieces 3 and 3 is spread in the directions of arrows x and x in FIG. Then, the sandwiching portions 3a, 3a are opened, and the convex portion 10a is removed from the stopper hole 3b. Therefore, the hair bundle component 8 can be easily removed from the handle 1B. Moreover, as described above, when the holding pieces 3 and 3 are opened, it is only necessary to hold both the holding pieces 3 and 3, so that it is not necessary to touch the hair bundle constituting portion 8 with the paint. Therefore, the hair bundle constituting part 8 can be easily removed without making the hands dirty.
Further, in the first embodiment, the hair bundle 9 can be separated from the holding member 10 of the hair bundle constituting portion 8. Therefore, when the holding member 10 does not have paint, only the hair bundle 9 with paint can be discarded as industrial waste.
Moreover, in the said 1st Embodiment, although the retaining hole 3b as a recessed part of this invention is formed in the said clamping parts 3a and 3a, and the convex part 10a is provided in the holding member 10, like the said reference example, a recessed part is provided. The positional relationship between the convex portion and the convex portion may be reversed. That is, a convex part may be provided in the clamping parts 3a, 3a, and a concave part may be provided in the holding member 10 of the hair bundle constituting part.

In the first embodiment, the outer periphery of the flange portion 9b formed on the welded portion 9a of the bristle bundle 9 and the outer periphery of the holding member 10 are matched, but the outer periphery of the flange portion 9b is enlarged, The flange portion 9b may protrude outward from the holding member 10. A second embodiment in which the flange portion 9b is thus enlarged is shown in FIG.
As shown in FIG. 11, when the width of the flange portion 9b of the bristle bundle 9 is L1, the width of the holding member 10 is L2, and L1> L2, the holding force of the holding portions 3a and 3a is directly applied to both sides of the flange portion 9b. Will work. The clamping force to the flange portion 9b by the clamping portions 3a and 3a is for preventing the hair bundle from coming off together with the pressing force by the pressing portion 3c when a force in the direction of coming off from the holding member 10 acts on the hair bundle 9. Acts as a force. That is, rattling of the hair bundle 9 with respect to the holding member 10 can be more reliably prevented when used as a brush.
Moreover, in the said 2nd Embodiment, although the retaining hole 3b as a recessed part of this invention is formed in the said clamping parts 3a and 3a, and the convex part 10a is provided in the holding member 10, a recessed part is provided like the said reference example. The positional relationship between the convex portion and the convex portion may be reversed. That is, a convex part may be provided in the clamping parts 3a, 3a, and a concave part may be provided in the holding member 10 of the hair bundle constituting part.

The third embodiment shown in FIGS. 12 and 13 uses a pair of covers 11 and 11 surrounding the outer periphery of the holding member 10 of the first embodiment, but other configurations are the same as those of the first embodiment. Is the same.
As shown in FIG. 12, each of the pair of covers 11 and 11 includes a side wall 11a having a shape like the cylindrical holding member 10 divided into two along the axis, an upper plate 11b, and an upper plate 11b. The jaw part 11c which opposed and protruded inside is provided.
In addition, a through hole 11d is formed in the side wall 11a to allow the columnar protrusion 10a formed in the holding member 10 to pass therethrough.

In this 3rd Embodiment, after fitting the hair | bristle bundle 9 in the holding member 10 similar to the said 1st Embodiment, the holding member 10 is enclosed by the said covers 11 and 11. FIG. Then, the convex portion 10a of the holding member 10 is projected from the through hole 11d of the covers 11, 11, and the convex portion 10a projected from the cover 11 is fitted into the retaining hole 3b of the clamping portion 3a. As shown, the cover 11 is clamped by the clamping parts 3a and 3a.

In the third embodiment, the hair bundle constituting portion of the present invention is formed by the hair bundle 9, the holding member 10 and the covers 11, 11, but the hair bundle constituting portion is sandwiched by the sandwiching portions 3a, 3a. The point which comprises the brush is the same as other embodiment. Furthermore, the opening of the clamping pieces 3 and 3 can be prevented using the ring 6 shown in FIG.
In the brush according to the third embodiment, as shown in FIG. 13, the upper plate 11 b of the cover 11 surrounding the holding member 10 presses the welded portion 9 a of the hair bundle 9 and moves the hair bundle 9 in the axial direction. To regulate. The upper plate 11b corresponds to the pressing portion of the present invention provided on the holding member.
In the third embodiment, the holding portions 3a and 3a are provided with the retaining holes 3b as the concave portions of the present invention, and the holding member 10 is provided with the convex portions 10a. The positional relationship between the convex portion and the convex portion may be reversed. That is, a convex part may be provided in the clamping parts 3a, 3a, and a concave part may be provided in the holding member 10 of the hair bundle constituting part.

  Accordingly, the coating brush of this embodiment also has no shakiness of the hair bundle constituent part during use, and after use, the hair bundle constituent part can be easily separated from the sandwiching parts 3a, 3a. Further, the covers 11 and 11 can be removed from the holding member 10, and the hair bundle 9 can be separated from the holding member 10.

The fourth embodiment shown in FIGS. 14 and 15 is different from the other embodiments in that the hair bundle 9 shown in FIG. 7 is attached to the handle without using a holding member.
The brush handle of the fourth embodiment is not shown in the figure, but is a handle made of a pair of sandwiching pieces and bifurcated like the handle of the other embodiments. FIG. 14 shows a cross-sectional view of the front end side of one sandwiching piece 25 constituting the handle. The other clamping piece 25, although not shown, the shape and axisymmetric that shown in FIG. 14.
And in the clamping part 25a of the front-end | tip of the clamping piece 25, while forming the linear recessed part 25b for inserting the flange part 9b of the welding part 9a of the bristle bundle 9, along the upper edge of this linear recessed part 25b, A plate-like pressing portion 25c protruding between the holding portions 25a and 25a is formed integrally with the holding portion 25a. Further, the pressing portion 25c is provided with a thick portion 25d, and a through hole 25e is formed therein.

  As shown in FIG. 23, the flange 9b of the bristle bundle 9 is fitted into the linear recess 25b of the sandwiching piece 25 as described above, and the welded portion 9a is sandwiched and held by the pair of sandwiching portions 25a and 25a. The bundle 9 and the handle are connected. Further, a resin rod member 24 is press-fitted into the through holes 25e formed in both the sandwiching pieces 25 to prevent the sandwiching pieces 25 and 25 from opening. In this embodiment, the pin member 24 and the through hole 25e constitute the holding force holding means of the present invention. However, the holding force holding means is not limited to this, and for example, a ring as in the other embodiments. 6 (see FIG. 1) may be used.

In the brush according to the fourth embodiment, the hair bundle 9 is held between the holding portions 25a and 25a, the holding force is held, and the movement of the hair bundle 9 in the axial direction is also restricted by the pressing portion 25c. The hair bundle 9 does not rattle during use. Further, after use, if the rod member 24 is pulled out from the through hole 25e, the sandwiching pieces 25, 25 can be opened and the hair bundle 9 can be easily separated from the handle .

It is a front view of the brush of a reference example . It is a perspective view of the handle | pattern of a reference example . It is a perspective view of the hair | bristle bundle structure part of a reference example . It is the elements on larger scale in the side of the brush of a reference example . It is an example of a clamping force holding means. It is a perspective view of the hair | bristle bundle structure part of 1st Embodiment. It is a perspective view of the hair | bristle bundle of 1st Embodiment. It is sectional drawing of the hair | bristle bundle structure part of 1st Embodiment. It is a perspective view of the handle | pattern of 1st Embodiment. It is the elements on larger scale in the side of the brush of 1st Embodiment. It is the elements on larger scale in the side of the brush of 2nd Embodiment. It is a perspective view of the cover of 3rd Embodiment. It is a fragmentary sectional view of the brush of 3rd Embodiment. It is a fragmentary sectional view of the clamping piece of 4th Embodiment. It is the elements on larger scale in the side surface of the brush of 4th Embodiment.

Explanation of symbols

1A, 1B Handle 2 Hair bundle constituting part 3 Holding piece 3a Holding part 3b Stop hole 4 Hair bundle 5 Bundling member 5a Projecting part 6 Ring 7 U pin 3c Holding part 8 Hair bundle constituting part 9 Hair bundle 9a Welding part 9b Flange part 10 Holding member 10a Convex portion 11b Upper plate 12 Holding member 13a Convex portion 14 Cap 14a Upper plate 15 Holding member 16a Convex portion 17 Cap 18 Holding member 19b Upper plate 20b Convex portion 21 Holding members 22b and 23b Upper plates 22c and 23c Convex portion 22e , 23e Through hole 3d Through hole 24 Bar member 25 Holding piece 25a Holding portion 25b Linear recess 25c Holding portion 25e Through hole

Claims (2)

A pair of clamping pieces having a clamping portion at the tip consists of a resin pattern was bifurcated integrally at its base end side, the bristle bundle structure portion sandwiched the pair of holding pieces, the hair The bundle constituting portion includes a hair bundle in which a base end of a thermoplastic resin bristle is welded to provide a welded portion, and a cylindrical holding member that surrounds and holds the hair bundle, and the pinching portion or the holding member When either one of the protrusions is provided, and the other of the holding part or the holding member is provided with a concave part that fits into the convex part, and the convex part is fitted into the concave part, the pattern and the hair bundle constituting part When the convex portion is removed from the concave portion, the handle and the hair bundle constituent portion are separated from each other, and the pair of sandwiching portions sandwich the hair bundle constituent portion. A coating brush provided with a clamping force holding means for restricting the opening of the clamping part, wherein the welding part is A flange portion that is integral with the welded portion and projects outward from the hair bundle, and the holding member has an inner circumference at least one end of the holding member that is shorter than an outer circumference of the flange portion, The bristle bundle is inserted from the one end of the holding member in a direction opposite to the proximal end of the handle, and the flange portion is hooked on the one end of the holding member. The hair bundle is prevented from coming off in the opposite direction, and the hair bundle can be extracted from the holding member in the proximal direction of the handle, and either the holding part side or the holding member side has the above A pressing portion for pressing the welded portion is provided, and when the handle and the hair bundle constituting portion are in a connected state, the welded portion is pressed by the pressing portion to restrict the movement of the hair bundle in the axial direction with respect to the holding member. A brush for painting. A pair of sandwiching pieces each having a sandwiching portion at the distal end is formed of a resin handle integrated into a bifurcated shape on the base end side, and a hair bundle sandwiched between the pair of sandwiching pieces, and the pair of sandwiching pieces A coating brush provided with a holding force holding means for restricting the pair of holding portions from opening in a state where the portion holds the hair bundle, wherein the hair bundle includes a base of thermoplastic resin hair An end is welded to provide a welded portion, and the welded portion has a flange portion that is integral with the welded portion and protrudes outward from the hair bundle, and the flange portion is disposed on an opposing surface of the pair of sandwiching portions. A linear concave portion is provided, the flange portion is fitted into the linear concave portion to hold the hair bundle between the holding portions, the flange portion is removed from the linear concave portion, and the hair bundle can be separated from the handle. The holding portion is provided with a pressing portion for pressing the flange portion, and the pressing portion Therefore brush for painting was configured to press the welded portion with the flange portion.

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