JP6376644B2 - Segment brush - Google Patents

Description

  The present invention relates to a segment brush that is attached to a processing machine and performs various processes such as grinding, polishing, surface treatment, cleaning, and deburring of a work surface while rotating.

  A fixed part by heat welding is formed on one end side end face of a brush part (brush bundle) in which a plurality of brush pieces (monofilaments) are bundled, and this fixed part is arranged and fixed to a container (metal cup) via an adhesive (For example, refer to Patent Document 1) or one in which a plurality of brush pieces (brush bristle material) are bundled by a cover ring and adhesive is applied to one end of the brush and fixed to a container (synthetic resin cylinder) (for example, a patent) Further, a brush portion (brush hair) in which a plurality of brush pieces (brush bristle material) are bundled is covered with a heat-shrinkable tube, and the brush portion and the heat-shrinkable tube are bonded with an adhesive. What is fixed to a container (metal fitting) (for example, refer to Patent Document 3) is known. In addition, the heat-shrinkable tube used in the above-mentioned Patent Document 3 also serves to prevent the tip of each brush piece (brush hair) from spreading during use.

JP 2005-254398 A Japanese Patent No. 4942409 JP 2011-148029 A

  However, in the cup brush for a deburring machine described in Patent Document 1, when a brush part having a fixing part is inserted into a container in which an adhesive is charged, a particularly viscous adhesive is In addition to preventing intrusion, a clearance is sought to enter the gap formed between the inside of the container and the outside of the brush portion, and the fixing portion and the outer peripheral portion of the container and the brush portion are fixed. In this case, in order to ensure the clearance, the outer diameter of the brush portion must be smaller than the inner diameter of the container, so it is difficult to align the center of the brush portion and the center of the container during assembly. If the workpiece is fixed in an eccentric state, vibration and abnormal noise are likely to occur when the workpiece is rotated. Furthermore, since there are fixed portions, the intrusion of the adhesive between the brush pieces is prevented, and the bonding area does not increase and the bonding efficiency tends to decrease.

  Moreover, in the bristle of the said patent document 2, since the brush part is covered with the cover ring, the adhesive agent is applied to this edge part and it fixes to the container, Therefore Fixation of the eccentric state of a container and a brush part, and a brush The spread due to the rotation of the tip of the part is solved, but since the adhesive is only applied to the end of the brush part, the bonding area between the container and the brush part is small, especially the workpiece is rotated at high speed When processing, adhesion peeling is likely to occur. Furthermore, in the segment brush described in Patent Document 3, the brush part is covered with a heat-shrinkable tube, and the ends of the brush part and the heat-shrinkable tube are fixed to the container with an adhesive. Similarly, the adhesion area between the container and the brush part tends to be reduced.

  The present invention solves the above-described conventional problems. When processing a workpiece while pressing and rotating, the brush portion is prevented from spreading, and the container rotatably held by the processing machine and the brush portion are securely bonded. It aims to provide a segment brush that can be fixed.

In order to solve the above-mentioned conventional problems, the invention of claim 1 is formed from a plurality of brush pieces at one end in order to perform various processes such as grinding, polishing, surface treatment, cleaning, deburring, etc. of the work surface. A brush part having an adhesive fixing part at the other end, a heat shrinkable tube having a tip part and a fixing part for bundling the outer periphery of the brush part, and fixing of the adhesive fixing part of the brush part and the heat shrinkable tube In a segment brush composed of a bottomed container for fixing and holding a part via an adhesive, the fixing part is formed so as not to cover the adhesive fixing part, and an outer peripheral surface of the adhesive fixing part and the container The adhesive flows into an outer peripheral gap formed between the inner peripheral surface of the container, the adhesive fixing portion and the fixing portion are fixed to the container, and a part of the lower end portion of the fixing portion is the container. Of the lower end of the lower end The cutting length is characterized by being longer than the inner peripheral length of the container . Thereby, the fixing part of the heat shrinkable tube is formed so as not to cover the adhesive fixing part of the brush part, so that the adhesive fixing part of the brush part and the heat shrinkable tube are fixed to a container in which a predetermined amount of adhesive is charged. By pushing the part, a part of the adhesive spreads each brush piece that forms the adhesive fixing part that is not covered with the heat-shrinkable tube in the direction of the outer peripheral gap, forms an internal space, and rises to this internal space While the other part of the adhesive enters into the outer peripheral gap formed between the outer periphery of the adhesive fixing part and the inner peripheral surface of the container, and enters the fixing part of the heat-shrinkable tube Can reach up to. As a result, the adhesive can securely bond and fix the space between the brush pieces and the heat-shrinkable tube to the container three-dimensionally from the base of the bottom and side surfaces of the brush portion.

  In addition, the inner diameter of the container and the outer shape of the heat-shrinkable tube are configured to be almost the same diameter so that no gap is created, so that the adhesive fixing part that is not covered by the heat-shrinkable tube is inserted into the container first during assembly. However, since there is a peripheral clearance, the end of the adhesive fixing part hits the edge of the opening of the container and can prevent deformation and the like, and when the outer shape of the heat-shrinkable tube is inserted into the container, Since there is no outer peripheral gap, the container and the brush body are gradually concentric, can prevent eccentricity, and can be easily and reliably inserted and fixed.

  The invention of claim 2 is characterized in that, in the invention of claim 1, it is formed by polymerizing the tip of the heat-shrinkable tube. Therefore, when the container of the segment brush is rotated by a processing machine having an electric motor or the like to perform processing such as polishing of the workpiece, the processing portion of the brush portion that is in press contact with the workpiece is subjected to pressing force and rotation. It tends to spread due to the accompanying centrifugal force, that is, the contact force with the workpiece is weakened, and the processing accuracy may be lowered. In order to prevent such a phenomenon, the heat-shrinkable tube or the like covers the vicinity of the processed part of the brush part. However, since the heat-shrinkable tube part is generally made of a soft resin, it stretches. It is easy to break, and it is easy to prevent the spread of the processed part, but it is possible to increase the strength by forming at least double overlapping part at the tip part and to prevent these Become.

  Note that the overlapping portion may be formed by folding a heat-shrinkable tube. As a result, since the folded portion is integrated, the end surface is less likely to be peeled off compared to the case where the folded portion is simply superposed, and the spread of the brush portion can be surely prevented. One end of the heat-shrinkable tube may be folded back, and a new heat-shrinkable tube having a different inner diameter is not prepared. Moreover, the operation | work of aligning each end surface etc. is unnecessary in the case of superposition | polymerization, and can operate | work easily and reliably. Needless to say, the polymerization area, that is, the polymerization width dimension may be set freely as required.

  The invention of claim 3 is characterized in that, in the invention of claim 1 or claim 2, a plurality of adhesive holes are formed in the fixing portion of the heat-shrinkable tube. Therefore, by pressing the adhesive fixing part of the brush part and the fixing part of the heat-shrinkable tube into the container in which the adhesive is put, a part of the adhesive forms an adhesive fixing part that is not covered with the heat-shrinkable tube Each brush piece to be spread out in the outer peripheral direction, forming an internal space, entering into this internal space, entering into the adhesion hole, the container and the brush part are also above the fixing part of the heat shrinkable tube than the base It can be securely bonded and fixed. Thereby, a brush part, a heat-shrinkable tube, and a container can increase the adhesion area more, and can prevent adhesion peeling. Note that an adhesive may be put in the bonding hole in advance immediately before the brush portion and the heat-shrinkable tube are pushed into the container.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, an adhesive longitudinal groove is formed from the opening of the container toward the bottom surface. Therefore, if the adhesive fixing part of the brush part and the fixing part of the heat-shrinkable tube are inserted into the container in which the adhesive is charged, the adhesive originally has no escape place and prevents the brush part from entering, and the adhesive area The shortage and the dimensions from the container to the processed part of the brush part will vary. In particular, the intrusion prevention is remarkable in a highly viscous adhesive. By providing the adhesive flutes in the container, the adhesive enters the adhesive flutes, facilitating the intrusion and ensuring that the brush part and the heat-shrinkable tube are stored in place, and in particular, the heat-shrinkable tube and The adhesion area with the container is increased, and the container, the brush part, and the heat-shrinkable tube are prevented from rotating, so that the adhesion and fixation can be performed more firmly. Further, since it can be used as an overflow groove for the adhesive, it is not necessary to strictly put the adhesive into the container, and the operation is easy. In addition, the number of the adhesive longitudinal grooves may be one or more as required.

  In the invention of claim 1, compared with the conventional invention, the side of the brush part can infiltrate the adhesive from the base to the inside, and the container and the brush part can be bonded and fixed in three dimensions. The area is increased, the adhesive strength is increased, and the adhesion and peeling between the container and the brush portion due to the rotational contact force between the workpiece and the brush portion can be reliably prevented. Further, in the invention of claim 2, it is possible to easily and reliably prevent the processing portion of the brush portion that is in rotational contact with the workpiece from spreading. In the invention of claim 3, the brush part can also securely bond the heat-shrinkable tube to the container from the base. In the invention of claim 4, while increasing the adhesion area of the brush part and the heat-shrinkable tube to the container, the rotational peeling force between the container, the brush part and the heat-shrinkable tube generated when the workpiece is processed is increased. It can also be a stop. Furthermore, it becomes easy to manage the amount of adhesive to be introduced into the container, which can contribute to the improvement of workability.

FIG. 1A is an external perspective view of a segment brush according to the present invention, and FIG. 1B is a longitudinal sectional view of the segment brush according to the present invention. FIG. 2A is a front view of a brush portion showing a state in which a plurality of brush pieces according to the present invention are bundled, and FIG. 2B is a diagram illustrating a state in which the brush portion according to the present invention is covered with a heat-shrinkable tube and thermally contracted. (C) is a sectional view showing a state in which an adhesive is put into the container according to the present invention, and (d) is a heat shrinkage showing a state in which the brush portion is housed in the container according to the present invention. Sectional view showing a state in which only the non-sectional tube is cut FIG. 3 is a partial sectional view showing a state in which the brush portion according to the present invention is housed in a container 4A is a cross-sectional view showing another embodiment in which the brush portion according to the present invention is covered with a heat-shrinkable tube, and FIG. 4B is a cross-sectional view illustrating the brush portion according to the present invention with a heat-shrinkable tube. Sectional drawing which shows the other Example which shows the state covered 5A is a perspective view showing another embodiment of the heat-shrinkable tube according to the present invention, and FIG. 5B is another embodiment in which the brush portion is covered with the heat-shrinkable tube according to the present invention. The front view which shows an example, (c) is sectional drawing which shows the other Example of the state which accommodated and fixed the brush part covered with the heat-shrinkable tube which concerns on this invention in a container. FIG. 6A is a plan view showing another embodiment of the container according to the present invention, and FIG. 6B is a state where the brush part covered with the heat-shrinkable tube is housed and fixed in the container according to the present invention. Sectional view showing another embodiment (A)-(d) of Drawing 7 is a sectional view showing other examples of a heat shrinkable tube which only a heat shrinkable tube which shows the state where a brush part was stored in a container concerning the present invention was not cut. FIG. 8 is a cross-sectional view showing another embodiment of the segment brush in which only the heat-shrinkable tube showing the state in which the brush portion is housed in the container according to the present invention is not cross-sectioned.

  1A is an external perspective view of a segment brush according to the present invention, FIG. 1B is a longitudinal sectional view of FIG. 1, and FIG. 2A is a plurality of brush pieces according to the present invention. FIG. 2 (b) is a front view showing a state in which the brush part shown in FIG. 2 (a) is covered with a heat-shrinkable tube and heat-shrinked. FIG. 2 (c) is a cross-sectional view showing a state in which the adhesive is put into the container according to the present invention, and FIG. 2 (d) is a heat shrinkability showing a state in which the brush portion is housed in the container according to the present invention. FIG. 3 is a cross-sectional view showing a state in which only the tube is not cut, and FIG. 3 is a partial cross-sectional view showing a state where the brush portion according to the present invention is housed in a container.

  As shown in these drawings, the segment brush 1 is attached to a processing machine (not shown) using an electric motor (not shown) or the like as a drive source, and rotates and contacts the workpiece at a predetermined pressure. A plurality of brush pieces 2 are bundled to form a columnar brush portion 3, one end of which is in rotational contact with the workpiece at a predetermined pressure, and the other end is a container 10 described later. And an adhesive fixing portion 5 housed in the housing. In addition, the height h from the lower end surface of the adhesive fixing part 5 is formed to be smaller than the depth H of the container 10 to be described later, and preferably within a range of 1 / 4H to 3 / 4H. The brush portion 3 is covered with a heat-shrinkable tube 6 that shrinks at a predetermined temperature on the outer periphery except for the processed portion 4 and the adhesive fixing portion 5. In this state, for example, in a high-temperature tank and when a predetermined time elapses at a predetermined temperature, the heat-shrinkable tube 6 is tightened and conjugated by shrinking the outer periphery of the brush portion 3 and integrated. The heat-shrinkable tube 6 has a distal end portion 7 on the processing portion 4 side and a fixing portion 8 on the adhesive fixing portion 5 side, and the fixing portion 8 together with the adhesive fixing portion 5 in a container 10 described later. It is stored in a container 10 to be described later. As the material of the brush piece 2, various wires such as a single wire or a mixed wire such as a metal wire, a resin wire, or a covered wire in which the periphery of the metal wire is covered with a resin can be used. In addition to the linear shape, the shape of the brush piece 2 is a wavy shape, a twisted yarn in which a large number of brush pieces are bundled and twisted, and a twist in which a plurality of wires are twisted around a central core wire. Various shapes such as lines can be used, and are not particularly limited. In addition, the segment brush 1 is used by being attached to a processing machine (not shown) using an electric motor (not shown) or the like as a drive source by various methods. For example, a container of a plurality of segment brushes 1 is used. In the case of carrying out an embodiment in which the processing unit 4 is passed through the holes of the fixed plate having a plurality of holes after the 10 is attached to the rotating plate of the processing machine, the segment brush 1 is the heat shrinkable tube. 6, the processed portion 4 does not spread, and the mounting operation can be quickly performed without bringing the processed portion 4 into contact with the hole of the fixed plate.

  Thereby, the difference between the outer diameter D1 of the heat-shrinkable tube 6 and the outer diameter d of the brush portion 3, that is, the thickness of the heat-shrinkable tube 6 becomes the outer peripheral gap 9. Moreover, you may form the front-end | tip part 7 of the heat-shrinkable tube 6 so that the process part 4 of the brush part 3 may be covered, and the opening to the outward direction of the process part 4 at the time of processing to a workpiece is more Can be prevented. Further, a plurality of heat-shrinkable tubes 6 may be polymerized as necessary.

  The container 10 is held by a processing machine (not shown), is made of a material such as metal or resin, has a bottomed shape with a predetermined depth H, and has an opening 11 and a bottom surface 12 at the upper end. The inner diameter D2 is substantially the same as the outer diameter D1 of the heat-shrinkable tube 6. Inside the container 10, a predetermined amount of adhesive 13 for storing and fixing the adhesive fixing portion 5 and the fixing portion 8 is put. In this state, the container 10 is pushed into the container 10 from the adhesive fixing part 5 (arrow shown in FIG. 3). At this time, since the outer peripheral gap 9 is formed, the opening 11 can be inserted without contact, that is, without deforming the adhesive fixing portion 5. Further, when pushed in, since the inner diameter dimension D2 is formed to be substantially the same as the outer diameter diameter dimension D1 of the heat-shrinkable tube 6, the brush portion 3 and the container 10 are accommodated in a concentric state. When further pushed in, each brush piece 2 in the adhesive fixing part 5 is pushed outward by the adhesive 13 to form an internal gap 14, and the adhesive 13 enters the internal gap 14 and rises. The other adhesive 13 also enters the outer circumferential gap 9 and continues to rise, reaches the fixing portion 8, and directly fixes the bottom surface and side surfaces of the container 10, the fixing portion 8, and the adhesive fixing portion 5 to the inside thereof. .

  FIG. 4 is another embodiment showing a state in which the brush portion is wrapped with the heat-shrinkable tube according to the present invention. FIG. 4 (a) shows a predetermined length at the distal end portion 7 of the heat-shrinkable tube 6. FIG. A heat-shrinkable tube 61 is placed and the respective end faces 16 are polymerized to form a superposed portion 15. As the segment brush 1, the processed portion 4 is formed outwardly when the work piece is processed. This is to further prevent the opening. In addition, the superposition | polymerization part 15 may be comprised in triple or more as needed, and the superposition | polymerization part 15 may also wrap the process part 4. FIG. Thereby, the outward prevention of the process part 4 can be made still better. FIG. 4B shows a state in which the tip portion 7 of the heat-shrinkable tube 6 is folded back by a predetermined dimension so as to have a folded-back portion 17 to form a superposed portion 15, and before the brush portion 3 is covered with the heat-shrinkable tube 6. In addition, the overlapping portion 15 may be formed, and the operation is easy. In addition, when covering the heat-shrinkable tube 61 with the large-diameter heat-shrinkable tube 6, troublesome work of aligning the end surfaces 16 may occur or the end surfaces 16 may be easily peeled off, but the folded portion 17 is provided. This can be solved. In addition, although the folding | returning part 17 which forms the superposition | polymerization part 15 is folded back and formed, it may be folded back and formed inside.

  FIG. 5 is another embodiment showing the heat-shrinkable tube of the segment brush according to the present invention. FIG. 5A is a perspective view of the heat-shrinkable tube, and FIG. 5B is a heat-shrinkable tube. The front view of the state which wrapped the brush part, (c) is a partially notched sectional view which shows the state which accommodated and fixed the heat-shrinkable tube and the brush part to the container.

  A number of bonding holes 18 are formed in the fixing portion 8 of the heat-shrinkable tube 6, and when the bonding fixing portion 5 and the fixing portion 8 are pushed into the container 10 in which the adhesive 13 is put, the adhesive 13 is While entering the outer peripheral gap 9, it rises from the inner gap 14 and enters the bonding hole 18, whereby the side surface of the fixing portion 8 and the container 10 can be bonded and fixed. Thereby, the fixing part 8 of the container 10 and the heat-shrinkable tube 6 and the adhesive fixing part 5 of the brush part 3 can be bonded and fixed more firmly. If a part of the adhesive 13 is applied to the adhesive hole 18 just before the adhesive fixing part 5 and the fixing part 8 are pushed into the container 10, the bonding effect is further improved.

  FIG. 6 shows another embodiment of the segment brush container according to the present invention. FIG. 6 (a) is a plan view of the container, and FIG. 6 (b) is a container containing a heat-shrinkable tube and a brush part. It is sectional drawing which shows the state fixed. A plurality of adhesive longitudinal grooves 19 formed from the opening 11 to the bottom surface 12 are formed on the inner wall surface of the container 10, and the adhesive fixing part 5 and the fixing part 8 are attached to the container 10 in which the adhesive 13 is charged. , The adhesive 13 is forced to enter the adhesive longitudinal groove 19, and the fixing part 8 of the container 10 and the heat-shrinkable tube 6 and the adhesive fixing part 5 of the brush part 3 are more firmly bonded and fixed. It becomes possible to do. Thereby, when the segment brush 1 rotates the workpiece, an adhesive peeling force acts between the container 10 and the adhesive fixing part 5 of the brush part 3 and the fixing part 8 of the heat-shrinkable tube 6, The adhesive 13 that has entered the adhesive longitudinal groove 19 serves as a stopper and can reliably prevent the peeling force. Furthermore, since the adhesive longitudinal groove 19 can be used as an overflow path for the adhesive 13, it is safe even if a large amount of the adhesive 13 is put into the container 10, and the charging work is easy and can be performed by a skilled worker. There is also an advantage that the input amount management becomes unnecessary. Further, if the upper surface of the adhesive longitudinal groove 19 is an appropriate management line for reaching the adhesive 13 after the brush portion 2 and the heat-shrinkable tube 6 are accommodated in the container 10, the management can be easily made visually. Although a plurality of adhesive longitudinal grooves 19 are formed, a single one may be used.

(A)-(d) of Drawing 7 is a sectional view showing other examples of the heat-shrinkable tube which only the heat-shrinkable tube which shows the state where the brush part was stored in the container concerning the present invention was not sectioned. The heat-shrinkable tube includes a heat-shrinkable tube 26 having a lower end portion formed in an oblique shape as shown in FIG. (A), a heat-shrinkable tube 36 formed in a corrugated shape as shown in FIG. A form adopting the heat-shrinkable tube 46 formed into a gear-cut shape as shown in c) is also included in the present invention. Since the end of the heat-shrinkable tube 26 can be brought into contact with the bottom surface of the container 10 by making the shape as shown in the drawings (a) to (c), positioning of the heat-shrinkable tube 26 with respect to the container 10 The positioning of the heat-shrinkable tube 26 with respect to the brush piece 2 can be performed accurately and quickly. In addition, two heat shrinkable tubes having the same shape can be manufactured by cutting the central portion of one long heat shrinkable tube into a shape as shown in FIGS. Furthermore, by making the shape as shown in FIGS. 2A to 2C, the end of the heat-shrinkable tube 6 on the side of the container 10 as shown in FIG. Compared to the form cut perpendicularly to the direction, it is possible to secure a longer cut length of the end portion, so that the adhesive force of the end portion on the container 10 side of the heat-shrinkable tubes 26, 36, 46 to the outer peripheral gap 9 is stronger. It becomes possible to make it. Further, as shown in FIG. 4D, the present invention also includes a form in which a heat-shrinkable tube 56 having a tapered portion 30 formed on the processed portion 4 of the brush piece 2 is employed. By forming the tapered portion 30, it is possible to further reduce the impact from the workpiece applied to the processed portion 4 and to further prevent the brush portion 3 from spreading.

  FIG. 8 is a cross-sectional view showing another embodiment of the segment brush in which only the heat-shrinkable tube showing the state in which the brush portion is housed in the container according to the present invention is not cross-sectioned. The segment brush 11 has an adhesive layer 20 formed on the heat shrinkable tube 66. As the material of the adhesive layer 20, various materials such as a rubber adhesive, a soft resin adhesive, and a hard resin adhesive can be used. By forming the adhesive layer 20, it is possible to further reduce the impact from the workpiece applied to the processed portion 4 and to further prevent the brush portion 3 from spreading.

  It goes without saying that various embodiments can be employed without departing from the gist of the present invention. For example, with respect to the heat-shrinkable tube, a form in which a plurality of vertical grooves are formed on the inner surface of the heat-shrinkable tube can also be adopted. By providing a plurality of vertical grooves on the inner surface of the heat-shrinkable tube, a circular brush piece can be held in the vertical groove, and the heat-shrinkable tube has a plurality of brush pieces without gaps, that is, depending on the gaps. The movement of the brush piece can be prevented, and the brush piece can be reliably conjugated inside. Moreover, the form which uses the raw material which has a magnetic force for a heat-shrinkable tube is also employable. For example, by making a ferromagnetic material such as ferrite whose main component is iron oxide into powder and mixing it in the heat-shrinkable tube, the magnetized heat-shrinkable tube is peeled off from the work surface by processing. It is possible to adsorb the cut chips and the like on the surface of the heat-shrinkable tube, and to prevent or suppress the chips from being scattered in the working environment around the processing machine. Furthermore, the end of the heat-shrinkable tube 6 on the container 10 side in FIG. 2 (d) can be shaped as shown in FIGS. 7 (a) to 7 (c). By making the shape as described above, as shown in FIG. 2 (d), it is possible to secure a longer cut length of the end portion as compared with a form cut perpendicularly to the longitudinal direction of the heat-shrinkable tube 6, It is possible to further strengthen the adhesive force of the end of the heat shrinkable tube 6 on the container 10 side with respect to the outer circumferential gap 9.

  The segment brush of the present invention can be widely and suitably used as a brush for performing various types of processing such as grinding, polishing, surface treatment, cleaning, and deburring of a work surface.

DESCRIPTION OF SYMBOLS 1, 11 Segment brush 2 Brush piece 3 Brush part 4 Processing part 5 Adhesive fixing part 6, 26, 36, 46, 56, 61, 66 Heat-shrinkable tube 7 Tip part 8 Fixing part 9 Outer periphery gap 10 Container 11 Opening part 12 Bottom surface 13 Adhesive 14 Internal gap 15 Superposed portion 16 End surface 17 Folded portion 18 Adhesive hole 19 Adhesive vertical groove 20 Adhesive layer 30 Tapered portion

Claims (4)

Grinding of the surface to be processed; brush part formed from a plurality of brush pieces and having a processed part at one end and an adhesive fixing part at the other end for various processing such as polishing, surface treatment, cleaning, deburring, and the brush A heat-shrinkable tube having a tip part and a fixing part that bundle the outer periphery of the part, and a bottomed container that holds and fixes the adhesive fixing part of the brush part and the fixing part of the heat-shrinkable tube via an adhesive. In the segment brush, the fixing portion is formed so as not to cover the adhesive fixing portion, and the adhesive is formed in an outer peripheral gap formed between an outer peripheral surface of the adhesive fixing portion and an inner peripheral surface of the container. And the adhesive fixing part and the fixing part are fixed to the container, and a part of the lower end part of the fixing part is in contact with the inner bottom surface of the container. The cutting length is longer than the inner peripheral length of the container. Segment brush to be.   The segment brush according to claim 1, wherein the tip part of the heat-shrinkable tube is formed by polymerization.   The segment brush according to claim 1 or 2, wherein a plurality of adhesive holes are formed in the fixing portion of the heat-shrinkable tube.   The segment brush according to any one of claims 1 to 3, wherein an adhesive longitudinal groove is formed from the opening of the container toward the bottom surface.

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