JP2017164500A - Brush tool and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brush tool and its manufacturing method in which molten pieces are produced without iron pieces and without adhesive bonding by using glue and by partial fusion of bristles themselves, and thereby the structural stability of the connection is strengthened.SOLUTION: A brush handle comprises one head part 11, and the head part has one first substrate 111 and one second substrate 112. A bristle unit 2 comprises many bristles and molten pieces 22 integrally connected with the bristles. The bristles are drilled in the first substrate and are exposed to the outside, and the molten pieces are interposed between the first substrate and the second substrate. An end stage approaching a bottom edge by the bristles is welded to become a columnar bottom stepped part, and the connecting stability can be strengthened by the connection system between the molten pieces formed by melting some materials of the bristles themselves and a brush head.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a brush device and a method for manufacturing the same, and particularly refers to a brush device that improves the structure and a method for manufacturing the same.

  In general, for example, a brush device of a toothbrush includes a brush handle and a plurality of bristles, and the brush handle has one head portion, and the head portion has many concave holes. In the previous brush device structure, the brush bristles are injected directly into the head of the brush handle, or the bottom step of the bristles is clamped and fixed in advance by a single metal piece, and then the brush handle Then, after the bristles are bonded together with viscose, they are injected into the concave holes of the head.

  The object of the present invention is to provide a brush device, which does not need to sandwich the bristles with a metal piece or glue the bristles with viscose.

  The brush device of the present invention comprises one brush handle and one brush bristle unit. The brush handle includes a head portion, and the head portion includes a first substrate, a second substrate, and the first substrate and the second substrate. It has an intervening sandwich space. The bristle unit comprises a large number of bristle and one molten piece that is integrally connected to the equibrush bristle, the equibrush bristle is drilled in the first substrate and exposed outside, The molten piece is interposed between the first substrate and the second substrate.

  In one embodiment, the head portion further includes one peripheral wall, the peripheral wall and the second substrate are integrally formed, and the first substrate is joined to the peripheral wall by welding. .

  In one embodiment, the first substrate has a bottom portion and a recessed hole formed by a recess in the bottom portion, and the first substrate and the peripheral wall are welded. At the time of bonding, the concave hole delimits the sandwich space corresponding to the second substrate.

  In one embodiment, the head portion further includes one peripheral wall, the peripheral wall and the first substrate are integrally formed, and the second substrate is joined to the peripheral wall by welding. .

  In one embodiment, when the first substrate and the peripheral wall are separated around one concave hole, and the second substrate is joined to the peripheral wall by welding, the concave hole is The sandwich space is divided corresponding to the substrate.

  In one embodiment, the equal bristles are each a number of bristles, and each bristles is connected to a local step of the melt piece and is integrally welded.

  In one embodiment, the brush device is a toothbrush, in which the top of the equibrush hairs is pointed and the top of the equibrush hairs is cut approximately equally.

  Another object of the present invention is to provide a method of manufacturing a brush device, which does not require holding the bristle with a metal piece or adhering the bristle with viscose.

  The method for manufacturing a brush device according to the present invention includes drilling a large number of bristles into one first substrate, welding the bottom step of the bristles to form one molten piece, and the The molten piece is interposed between the first substrate and the second substrate by bonding the first substrate and one second substrate.

  In an embodiment, the brush device includes a brush handle, the brush handle includes a head portion, and the head portion includes the second substrate and a peripheral wall. The second substrate and the peripheral wall are integrally molded, and among them, after the bristles are drilled in the first substrate, the bottom step portion of the bristles is further connected to the molten piece. Next, the first substrate, which is welded as described above, and the equal brush bristles are drilled, is further welded to the peripheral wall, thereby being coupled to the second substrate.

  In an embodiment, the brush device includes a brush handle, the brush handle includes a head portion, and the head portion includes the first substrate and a peripheral wall. The first substrate and the peripheral wall are integrally molded, and among them, after the bristles are drilled in the first substrate, the bottom step portion of the bristles and the molten piece are further formed. Next, the second substrate is further welded to the peripheral wall, thereby joining to the first substrate.

  In an embodiment, the equal brush bristles are each a number of bristles, and the last stage where the bristles of each bristles approach the bottom end are integrally welded to form a columnar shape. After the bottom step is formed, the equal brush bristle bundle is further drilled in the first substrate.

  In one embodiment, the length of the bottom step of each brush bristle bundle is 40% to 60% of the total length of the brush bristle bundle.

  In one embodiment, the length of the bottom step of each brush bristle bundle is 30% of the total length of the brush bristle bundle.

  In one embodiment, the amount of material that dissolves the bottom step of each bristle bundle to become the molten piece is approximately two-thirds of the length of the bottom step.

  In the present invention, first of all, the terminal bristles of the bristles of the bristles approaching the bottom end are welded so that they become columnar bottom step parts, thereby contributing to the combination and assembly with the brush handle. In addition, it is easy to avoid brush hair falling off, and the bristles do not need to use extra metal pieces to pinch the brush hair or bond using viscose, creating heavy metal However, the chemicals harmful to the human body can be decomposed from the viscose, so that the health is not affected, the brush hair can be further concentrated and the amount of the brush hair can be increased, and thus the cleaning ability of the brush device is enhanced. Thus, the bottom step portion of the equal brush bristles is heated and melted to form a piece-like molten piece structure, and the molten piece is sandwiched between the first substrate and the second substrate. If it corresponds, that is, the whole brush apparatus It can improve the structural stability.

FIG. 1 is an exploded perspective view of a first embodiment of the brush device of the present invention. FIG. 2 is a schematic diagram in which a large number of bristles are drilled in one first substrate in the first embodiment of the manufacturing method of the brush device of the present invention. FIG. 3 is a schematic diagram of a single bristle bundle. FIG. 4 is a schematic view showing that the bottom step portion of the equal brush bristle bundle is welded into one molten piece in the first embodiment of the manufacturing method of the brush device of the present invention. FIG. 5 is a cross-sectional view of a partial element of the first embodiment of the brush device of the present invention. FIG. 6 is a step flowchart of the first embodiment of the manufacturing method of the brush device of the present invention. FIG. 7 is a schematic view in which a large number of bristles are drilled in one first substrate in the second embodiment of the manufacturing method of the brush device of the present invention. FIG. 8 is a schematic diagram showing that the bottom step portion of the equal brush bristles is welded into one molten piece in the second embodiment of the method for manufacturing the brush device of the present invention. FIG. 9 is a sectional view of a partial element of the second embodiment of the brush device of the present invention. FIG. 10 is a schematic view of a variation of the second embodiment of the method for manufacturing a brush device of the present invention, in which the partial elements are displayed in cross-section. FIG. 11 is a schematic view of another embodiment of a single bristle bundle. FIG. 12 is a side view of a third embodiment of the brush device of the present invention.

  Referring to FIGS. 1, 2 and 5, the first embodiment of the brush device of the present invention comprises one brush handle 1 and one brush bristle unit 2. FIG. The brush handle 1 may have one head portion 11 and one handle portion 12, and the head portion 11 and the handle portion 12 may have a single-piece structure or a two-piece assembly structure. The head portion 11 has one first substrate 111, one second substrate 112, one sandwich space 113 interposed between the first substrate 111 and the second substrate 112 (see FIG. 5), And one peripheral wall 114. The first substrate 111 has a number of perforations 115. In the present embodiment, the first substrate 111 further has one bottom portion 116 and one concave hole 117 formed by the recess of the bottom portion 116. The second substrate 112 and the peripheral wall 114 have an integrally molded structure, and the second substrate 112 and the peripheral wall 114 are connected to form one top portion and are recessed downward. A first substrate 111 is used to be coupled to the peripheral wall 114 and delimits the sandwich space 113 corresponding to the second substrate 112. In some embodiments, the first substrate 111 is bonded to the peripheral wall 114 by welding, for example, by ultrasonic bonding, so that the concave hole 117 of the first substrate 111 is second The sandwich space 113 is partitioned corresponding to the substrate 112.

  Referring to FIGS. 1 and 5, the bristle unit 2 includes a large number of bristle bundles 21 and one molten piece 22 connected integrally with the bristle bundle 21 described above. The bristle bundle 21 passes through the perforations 115 of the first substrate 111 and is exposed to the outside, and the molten piece 22 is located in the sandwich space 113 between the first substrate 111 and the second substrate 112. To do. The coupling method between the brush bristle unit 2 and the head unit 11 will be described later. In one embodiment, each bristle bundle 21 comprises a number of bristle bristles, and a melt piece 22 is formed by melting the materials of a portion of the bristle of the equal bristle bundle 21 and connecting them together. In addition, the brush bristles are connected to the local stepped portion of the molten piece 22 and integrally welded, and a specific molding method will be described later. As shown in FIG. 3, in one embodiment, the top ends of the bristles of the bristles 21 have a pointed shape, and the top ends of the equal bristles are cut roughly equally. 21 is made more preferably a toothbrush. In addition, referring to FIG. 11, in another embodiment of the bristle bundle 21 ′, the arrangement method of the apex of the bristle is also inclined outward and downward from the center, so that the bristle bundle 21 ′ The top of the brush may have a generally pointed shape, but such a type of brush hair bundle 21 can be manufactured as a cosmetic device or the like.

  Referring to FIGS. 2 to 6, the first embodiment of the manufacturing method of the brush device of the present invention includes the following steps.

  Step S1: A large number of brush hairs are drilled in one first substrate 111. 2 and 3, in one embodiment, first, the end of each brush bristle bundle 21 where the equal bristles 211 approach the bottom end are integrally welded to form a single columnar shape. After forming the bottom step portion 212, the equal brush bristle bundle 21 is again drilled into the perforation 115 of the first substrate 111 by the bottom step portion 212, and a part of the bottom step portion 212 is the first step portion 212. The upper part of the bristle bundle 21 that is located in the concave hole 117 of the first substrate 111 and is not melted integrally is exposed outwardly above the first substrate 111. In an embodiment, the length L1 of the bottom step portion 212 of the bristle bundle 21 may be 40% to 60%, more preferably 30%, of the total length L2 of the bristle bundle 21.

  Step S2: Weld the bottom portions 212 of the equal brush bristles so as to form one molten piece 22. 3 and 4, in this embodiment, step S2 is performed after step S1, and after step S1, completion of step 212 of bottom bristles 212 of equal brush bristles 21 is performed. By heating the portion of the perforated 115 extending downward, the bottom step portion 212 of the equal bristle bristle bundle 21 is locally melted and connected to each other to form a molten piece 22 of the first, The base brush 111 is located in the concave hole 117 of the bottom portion 116, and the formation of the melt piece 22 connects the equal brush hair bundles 21 to form an integrated structure. It should be noted that the melted piece 22 is formed by melting and connecting the bottom step portion 212 of the equal bristle bristle bundle 21, so that in step S1, the bristle bristle bundle 21 is the first substrate. The length L3 (see FIG. 2) by which the bottom step 212 extends the perforation 115 downward when drilled in 111 is approximately two thirds of the total length L1 of the bottom step 212, and the bottom step 212 The portion where the perforation 115 extends downward is melted to become the molten piece 22, in other words, the amount of material that melts the bottom step portion 212 of each brush bristle bundle 21 to become the molten piece 22 is approximately the bottom. Two-thirds of the total length of step 212 and the remaining one-third of the length of bottom step 212 are located within perforation 115, and bottom step 212 is more preferably exposed upward. This is the top surface of the first substrate 111 that does not.

  In addition to melting the bristle itself of the bristle bundle 21 so as to become an integral bottom step 212 and contributing to being drilled in the first substrate 111, the bristle bundle 21 is further sandwiched between metal pieces. However, when the brush bristle unit 2 and the brush handle 1 are assembled and joined, the bottom step 212 of the bristle bundle 21 is still a third of the part. It is located in the perforation 115 of the first substrate 111, and thus it is possible to prevent the brush hairs from being easily dropped.

  Step S3: By joining the first substrate 111 and the second substrate 112, the molten piece 22 is interposed between the first substrate 111 and the second substrate 112. 4 and 5, in this embodiment, step S3 is performed after step S2, and the brush bristle bundle 21 formed in the first substrate 111 is formed by the first substrate 111. By being coupled to the peripheral wall 114 together with 111, it is coupled to the second substrate 112. At the time of bonding, the first substrate 111 is bonded to the peripheral wall 114 by, for example, an ultrasonic heat welding method, but since the first substrate 111 and the peripheral wall 114 have a connection relationship, the first substrate 111 has a concave portion. A hole 117 delimits the sandwich space 113 corresponding to the second substrate 112, whereby the molten piece 22 of the brush bristle unit 2 is located between the first substrate 111 and the second substrate 112, That is, the above-described brush device can be manufactured. Since the molten piece 22 is formed by melting from the material of the brush bristle bundle 21 itself and is sandwiched between the first substrate 111 and the second substrate 112, the brush bristle unit 2 is attached to the brush handle 1. The structural stability of bonding can be improved.

  7 and 8, this is the second embodiment of the brush device of the present invention. The difference between the second embodiment and the first embodiment is the difference between the second embodiment and the second embodiment. The first substrate 111 ′ and the peripheral wall 114 ′ are integrally formed and the concave hole 117 is correspondingly divided to form a structure in which the bottom is depressed, and the second substrate 112 ′ is a plate piece structure. is there. Similarly, the first substrate 111 ′ has a large number of perforations 115.

  Referring to FIGS. 6 to 10, in the second embodiment of the method of manufacturing the brush device of the present invention, for example, the steps S1 to S3 of the first embodiment described above are similarly included. However, as shown in FIG. 7, in step S1 of the second embodiment, the first substrate 111 ′ in which the bristle bundle 21 is drilled has an integrally molded structure with the peripheral wall 114 ′. Further, before the bristle bristles 21 are drilled, similarly, the end step where the equal bristle 211 approaches the bottom end is integrally welded to form a bottom step portion 212 having a columnar shape.

  As shown in FIG. 8 and in step S2 of the second embodiment, by heating the bottom step portion 212 of the brush bristle bundle 21, the bottom step portion 212 of the equal brush bristle bundle 21 is formed. First melted locally and connected to each other to form the entire molten piece 22, located in a recessed hole 117 'delimited by the first substrate 111' and the peripheral wall 114 ', and further in the first implementation As in the example, the amount of material for melting the bottom step portion 212 of each brush bristle bundle 21 so as to become a molten piece 22 ′ is approximately two-thirds of the total length of the bottom step portion 212, and the bottom step portion 212. Is more preferably the top surface of the first substrate 111 ′ exposed upward.

  Referring to FIG. 9, in step S3 of the second embodiment, the second substrate 112 ′ is bonded to the peripheral wall 114 ′ by welding, for example, by an ultrasonic thermal melting method. The substrate 112 ′ is connected to the first substrate 111 ′ via the peripheral wall 114 ′, and the recessed hole 117 ′ delimits the sandwich space 113 ′ corresponding to the second substrate 112 ′, thereby obtaining a molten piece. 22 is located in the sandwich space 113 ′.

  Therefore, the difference between the second embodiment and the first embodiment is that the first substrate 111 or the second substrate 112 is used to assemble the brush bristle unit 2 to the brush handle 1, and The structure is coupled to the peripheral walls 114 and 114 ′ by ultrasonic thermal welding or other joining methods.

  Referring to FIG. 10, in the variation of the second embodiment of the method of manufacturing the brush device of the present invention, first, step S2 is performed, and then steps S1 and S3 are performed. First, after the bottom step portion 212 is partially melted so as to become the molten piece 22, the bristle bundle 21 is further drilled in the first substrate 111 ′, and then the second substrate 112 ′ is Reconnect to the peripheral wall 114 '.

  Referring to FIG. 12, this is a third embodiment of the brush device according to the present invention, which is different from the above two embodiments in that the brush bristle unit 2 ′ includes a large number of bristles 211, and the equal brush bristles. 211 is not displayed in the form of a large number of brush bristles as described above, and is welded directly to the bottom step portion 212 ′ and the molten piece 22 ′ by the bottom step portion of the equal brush bristles 211. (Or all the bristles 211 in this embodiment may also be considered as a single bundle of bristles), but the remaining structure and process steps of the third embodiment, i. The specific example of the brush device of the third embodiment may be, for example, a wash brush.

  In summary, the present invention first welds the brush handle 1 with the brush handle 1 by welding the end of the bristles 21 of the bristles 21 close to the bottom end so as to form a columnar bottom step 212. In addition to contributing to the assembly and assembly of the brush, it is also possible to easily avoid the brush hair from falling off easily, and the bristles 21 and 21 'use extra metal pieces to hold the brush hair or viscose. There is no need to adhere to the brush hair 211 by generating heavy metals or decomposing chemical substances harmful to the human body from the viscose to affect health. By increasing the amount of the brush, and thus enhancing the cleaning ability of the brush device, the bottom step portion 212 of the equal bristle bristle bundle 21 is heated and melted so that the structure of the piece-like molten pieces 22, 22 ′ is obtained. The molten pieces 22 and 22 ′ are formed by the first substrate 111 and the second substrate 112. If it corresponds to the structure clamped between, that is, the structural stability of the whole brush apparatus can be improved.

  The foregoing detailed description is a specific description of the embodiments that can be implemented with respect to the present invention, but the embodiments are not used to limit the scope of the claims of the present invention. Any equivalent implementations or modifications made by not leaving the technical spirit of the present invention should be included in the claims of the present invention.

L1 Bottom step length
L2 Brush length
L3 length
1 Brush handle
2, 2 'brush bristle unit
11 Head
12 Handle section
21, 21 'Brush hair bundle
22 Molten piece
111, 111 'first substrate
112, 112 'second substrate
113, 113 'sandwich space
114, 114 'perimeter wall
115 drilling
116 Bottom
117, 117 'recessed hole
211 brush hair
212, 212 'Bottom step
212 ”bottom

Claims (14)

  The brush apparatus includes one brush handle and one brush bristle unit, the brush handle includes one head portion, and the head portion includes one first substrate and one first substrate. Two substrates, and a sandwich space interposed between the first substrate and the second substrate, and the brush bristle unit is integrally connected to a number of brush bristles and the equivalent bristles. And comprising a single molten piece, wherein the equal brush bristles are formed in the first substrate and exposed to the outside, and the molten piece is interposed between the first substrate and the second substrate. A brush apparatus characterized by that.   The head portion further includes one peripheral wall, the peripheral wall and the second substrate are integrally formed, and the first substrate is joined to the peripheral wall by welding. The brush apparatus according to 1.   The first substrate has one bottom part and one concave hole formed by a recess in the bottom part, and the concave hole is formed when the first substrate and the peripheral wall are welded and joined. The brush device according to claim 2, wherein the sandwich space is partitioned corresponding to the second substrate.   The head part further includes one peripheral wall, the peripheral wall and the first substrate are integrally formed, and the second substrate is joined to the peripheral wall by welding. The brush apparatus according to 1.   The first substrate and the peripheral wall are separated around one concave hole, and when the second substrate is joined to the peripheral wall by welding, the concave hole corresponds to the second substrate and the sandwich The brush device according to claim 4, wherein the space is divided.   The said equal bristle is each a large number of bristle bundles, and each bristle bundle is connected to the local step of the molten piece and is integrally welded. Brush instrument.   7. The brush apparatus according to claim 1, wherein the brush is a toothbrush, and the top of the bristles is pointed and the tops of the bristles are cut almost equally. The brush apparatus according to item. The manufacturing method of the brush device is:
Drilling a large number of bristles into one first substrate,
Welding the bottom step of the equal brush bristles to be one molten piece, and joining the first substrate and one second substrate to bond the molten piece to the first substrate. A method of manufacturing a brush device comprising interposing between the second substrate and the second substrate.   The brush device comprises a brush handle, the brush handle comprises a head, the head comprises the second substrate and a peripheral wall, and the second The substrate and the peripheral wall are integrally molded. Among them, after the bristles are drilled in the first substrate, the bottom portion of the bristles is further welded to become the molten piece, 9. The method of manufacturing a brush device according to claim 8, wherein the first substrate having the equal brush bristles is joined to the second substrate by further welding to the peripheral wall.   The brush device includes a brush handle, the brush handle includes a head portion, the head portion includes the first substrate and a peripheral wall, The substrate and the peripheral wall are integrally molded. Among them, after the bristles are drilled in the first substrate, the bottom portion of the bristles is further welded to become the molten piece, 9. The method of manufacturing a brush device according to claim 8, wherein the second substrate is further bonded to the first substrate by welding to the peripheral wall.   The equal brush bristles are a large number of bristles, and the last stage where the bristles of each bristles approach the bottom end are integrally welded to form one columnar bottom step, The method for manufacturing a brush device according to any one of claims 8 to 10, wherein the bristles are further drilled in the first substrate.   The method of manufacturing a brush device according to claim 11, wherein the length of the bottom step portion of each of the bristle bundles is 40% to 60% of the total length of the bristle bundle.   The method for manufacturing a brush device according to claim 12, wherein the length of the bottom step portion of each brush bristle bundle is 30% of the total length of the brush bristle bundle.   12. The amount of material that dissolves the bottom step of each bristle bundle to become the molten piece is approximately two thirds of the length of the bottom step. A method of manufacturing a brush device.