JP5194086B2 - Cleaning member, cleaning member with gripper, and method for manufacturing cleaning member - Google Patents

Description

  The present invention relates to a cleaning member used for capturing dust, dust, and the like, and relates to a cleaning member that is used by attaching a gripping tool, a cleaning member with a gripping tool, and a method for manufacturing the cleaning member.

  There are various types of cleaning members used for capturing dust, dust, and the like. For example, a base sheet made of non-woven fabric and a first tow fiber that is laminated on the cleaning surface side of the base sheet. There is known a cleaning member including a brush portion having a fiber bundle, a second fiber bundle, and a third fiber bundle.

  In this case, the base sheet and the first fiber bundle, the second fiber bundle, and the third fiber bundle of the brush portion are joined together by heat fusion at the position of the first joining line arranged in the center portion thereof. Has been. In addition, a holding sheet made of a nonwoven fabric is laminated on the outer surface side of the base sheet, and the holding sheet and the base sheet are arranged at the positions of the second joint lines arranged on both sides of the first joint line. One fiber bundle and the fiber bundle are joined together by heat fusion.

  And the to-be-inserted part which is the bag-shaped space which the both ends divided by the 1st joining line and each 2nd joining line open between the base material sheet and the holding sheet is provided, and it grasps in this to-be-inserted part By inserting the insertion portion of the tool, the cleaning member is attached to the gripping tool (see, for example, Patent Document 1).

Japanese Patent No. 3630117

  By the way, in the cleaning member having the above-described configuration, the holding sheet, the base sheet, and the first fiber bundle, the second fiber bundle, and the third fiber bundle between the pair of rollers of the heat seal device Is heated and pressed between the linear seal protrusions of both rollers, the first joining line and the second joining line are perpendicular to the long fibers of each fiber bundle of the brush portion. It is formed in a straight line that faces.

  In the cleaning member having such a configuration, since the first joining line and the second joining line that define the inserted portion are formed in a straight line, the first joining line and the second joining are caused by manufacturing errors. When an error occurs in the position of the line and the error causes a variation in the width direction of the inserted part, the inserted part of the gripping tool is pulled out of the inserted part or the inserted part of the gripping tool is covered. There may be a problem that it becomes difficult to insert into the insertion portion.

  Further, when the cleaning member is manufactured by a manufacturing method having a heat sealing step, for example, when a pair of rollers in which linear heat sealing protrusions are formed in the rotation axis direction is used, this linear shape is used. The entire heat-sealing projections of this contact with the holding sheet, the base sheet and the brush portion almost simultaneously. For this reason, the pressurizing force by the pair of rollers is insufficient and a sufficient joining force cannot be obtained, or a large load is applied to the fibrous member, which can cause problems such as tearing or holes. In order to avoid such a problem, it is necessary to limit the production speed so that no tears or holes occur, and the productivity cannot be significantly increased. Furthermore, even if no tears or holes are generated at the manufacturing stage, if a weak portion is formed, problems such as tearing may occur due to insufficient strength when cleaning a portion to be cleaned.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a highly reliable cleaning member, a cleaning member with a gripper, and a method for manufacturing the cleaning member.

  For example, even if the width of the inserted part varies due to manufacturing errors, it becomes difficult to insert the gripping part of the gripping tool into the inserted part, or the insertion part of the gripping tool can be easily inserted from the inserted part. An object of the present invention is to provide a cleaning member or the like that does not slip out.

  In addition, for example, sufficient bonding force can be obtained at the time of manufacturing, without causing problems such as breakage or holes, productivity can be improved, and further, when cleaning a portion to be cleaned, sufficient An object of the present invention is to provide a cleaning member or the like that has a sufficient strength and does not cause a problem of tearing or opening a hole.

In order to solve the above problems, the main present invention is a brush portion having a plurality of fibrous members, a holding sheet, and a base sheet provided between the holding sheet and the brush portion, An inserted portion for inserting a gripping tool, wherein the inserted portion is provided by partitioning the holding sheet and the base sheet by a heat-sealing portion. The thermal fusion part includes at least a first thermal fusion part and a second thermal fusion part that thermally fuse the holding sheet and the base sheet, and the first thermal fusion part and wherein at least one of the second heat-sealed portion is to have a heat-sealed portion provided discontinuously to the insertion direction of the gripper, the first heat-sealed portion and said second heat-sealed portion At least one has a zigzag-shaped portion, and is formed in the zigzag shape. The top part of the part constitutes a heat fusion part provided discontinuously with respect to the insertion direction of the gripping tool .

  According to the present invention, it is possible to provide a highly reliable cleaning member, a cleaning member with a gripper, and a method for manufacturing the cleaning member.

It is the perspective view which showed the whole one Embodiment of the cleaning member by this invention, and the holding tool, Comprising: It is the perspective view which showed the relationship between the cleaning member and the holding tool. (A) is the XX sectional view taken on the line of FIG. 1, (b), (c) is the XX sectional view of the modification of FIG. It is a top view of the cleaning member of FIG. It is explanatory drawing which showed the procedure of formation of a fusion line. It is explanatory drawing which showed the insertion procedure to the to-be-inserted part of the cleaning member of the insertion part of a holding | gripping tool. It is a principal part expanded sectional view in the case of heat-seal | fusing using a heat seal apparatus. It is the top view which showed 2nd Embodiment of the cleaning member by this invention. It is the top view which showed 3rd Embodiment of the cleaning member by this invention. It is the top view which showed 4th Embodiment of the cleaning member by this invention. It is the top view which showed 5th Embodiment of the cleaning member by this invention. It is the fragmentary figure which showed the modification of the cleaning member of 5th Embodiment. It is the top view which showed 6th Embodiment of the cleaning member by this invention, Comprising: (a) is an example which the adjacent fusion line contact | adhered, (b) is a clearance gap formed between adjacent fusion lines. It is the top view which showed the example which is.

=== Summary of Disclosure ===
This specification and the drawings disclose at least the following matters.
A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. The inserted portion is provided by partitioning the holding sheet and the base sheet with a heat-sealing portion, and the heat-sealing portion includes at least the holding sheet and the base sheet. A first heat fusion part and a second heat fusion part for heat fusion with the base material sheet, wherein at least one of the first heat fusion part and the second heat fusion part A cleaning member having a portion inclined with respect to the insertion direction.

  Since at least one of the first heat fusion portion and the second heat fusion portion has a portion inclined with respect to the insertion direction of the gripping tool, the first heat fusion portion and the second heat fusion portion. As for at least one, the contact area with respect to a holding | gripping tool can be made small significantly compared with the case where a heat-fusion part is formed in a straight line.

  Therefore, even if an error occurs in the position of the first heat fusion portion and the second heat fusion portion due to a manufacturing error and a variation occurs in the dimension in the width direction of the insertion portion, the insertion portion of the gripper is inserted into the insertion portion. This makes it difficult to insert the tool and prevents the gripping tool from coming out of the inserted portion.

In addition, when using a heat seal device including a pair of rollers, in at least one of the first heat fusion part and the second heat fusion part, a portion inclined with respect to the insertion direction of the gripping tool is provided. The heat-welding protrusions provided on the pair of rollers contact the base sheet, the holding sheet, and the brush portion with a time difference.
Therefore, there is no shortage of pressure when heating and pressurizing between a pair of rollers. Therefore, even if the production speed (the rotational speed of the pair of rollers) is not suppressed, Can increase the bonding force. Furthermore, heat fusion can be performed while extruding an air layer stored in the fibrous member by the inclined portion, so that the amount of heat can be efficiently used for fusion, and a cleaning member having excellent bonding strength can be obtained.

  At least one of the first heat fusion part and the second heat fusion part may have a zigzag-shaped portion.

  At least one of the first thermal fusion part and the second thermal fusion part has a plurality of thermal fusion parts along the insertion direction of the gripping tool, and each thermal fusion part is inserted into the insertion part. It is good also as having the part inclined with respect to the direction.

  Each of the heat fusion portions may be inclined in the same direction with respect to the insertion direction of the gripping tool.

  Each of the heat fusion portions may be inclined in different directions with respect to the insertion direction of the gripping tool.

  Each of the heat fusion portions may have a symmetrical shape with respect to the insertion direction of the gripping tool.

  Each of the heat-sealed portions may be a quadrilateral symmetrical with respect to the insertion direction of the gripping tool.

  At least one of the first heat fusion part and the second heat fusion part may have a curved portion.

  At least one of the first heat fusion portion and the second heat fusion portion has a plurality of heat fusion portions provided in a dotted manner in the insertion direction of the gripping tool, and the plurality of heat fusion portions. Of the first heat fusion portion and the second heat fusion portion by disposing the heat fusion portions adjacent to each other in the direction perpendicular to the insertion direction. However, you may comprise so that it may have a part inclined with respect to the insertion direction of the said holding | gripping tool.

  The first heat fusion part is a part where the holding sheet, the base sheet, and the entire brush part are thermally fused, and the second heat fusion part is the first heat fusion part. The holding sheet, the base sheet, and a part of the brush part are heat-sealed, and the first heat-sealing part is in the insertion direction of the gripping tool. It has an inclined portion, and the first heat fusion part may be provided continuously without a break when viewed from a direction orthogonal to the insertion direction.

  When the first heat fusion part is viewed from a direction orthogonal to the insertion direction, the first heat fusion part is provided with a continuous sheet, so that the holding sheet, the base sheet, and the brush part are formed by the first heat fusion part. When all the layers are heat-sealed, it is possible to reliably heat-seal a plurality of fibrous members provided in the brush portion and prevent the fibrous members from dropping off.

  A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. The inserted portion is provided by partitioning the holding sheet and the base sheet with a heat-sealing portion, and the heat-sealing portion includes at least the holding sheet and the base sheet. A first heat fusion part and a second heat fusion part for heat fusion with the base material sheet, wherein at least one of the first heat fusion part and the second heat fusion part It is good also as having the heat sealing | fusion part provided discontinuously with respect to the insertion direction.

  At least one of the first heat fusion portion and the second heat fusion portion has a zigzag-shaped portion, and the top of the zigzag-shaped portion is inserted into the gripping tool. It is good also as comprising the heat sealing | fusion part provided discontinuously with respect to a direction.

  At least one of the first heat fusion portion and the second heat fusion portion has a plurality of heat fusion portions along the insertion direction of the gripping tool, and a corner portion of each heat fusion portion is formed. It is good also as comprising the heat-sealing part provided discontinuously with respect to the insertion direction of the said holding | gripping tool.

  At least one of the first heat fusion part and the second heat fusion part has a curved part, and a part of the curved part is a part of the gripping tool. It is good also as comprising the heat sealing | fusion part provided discontinuously with respect to an insertion direction.

  At least one of the first heat fusion portion and the second heat fusion portion has a plurality of heat fusion portions provided in a dotted manner in the insertion direction of the gripping tool, and the plurality of heat fusion portions. Of the heat fusion parts adjacent to each other in the direction perpendicular to the insertion direction are arranged to be shifted from each other in the insertion direction, and among the heat fusion parts adjacent to the direction perpendicular to the insertion direction, It is good also as the heat-fusion part of the both ends in a perpendicular | vertical direction comprising the heat-fusion part provided discontinuously with respect to the insertion direction of the said holding tool.

  The second heat-sealing part may heat-seal all of the plurality of fibrous members of the brush part, the holding sheet, and the base sheet.

  On both sides of the first heat fusion part, a heat fusion line for managing the position of the first heat fusion part may be provided.

  Moreover, you may comprise the cleaning member with a holding tool provided with the above-mentioned cleaning member and the holding tool inserted in the to-be-inserted part.

  A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. A pair of rollers that are rotatable, and at least one of them is provided with a heat-welding protrusion having a portion inclined with respect to the direction of the rotation axis. First heat for forming the inserted portion by partitioning between the holding sheet and the base sheet by heating and pressurizing at least the holding sheet and the base sheet and thermally fusing them. A method for manufacturing a cleaning member, comprising forming at least one of a fusion part and a second heat fusion part.

    A pair of rotatable rollers, wherein at least one of the pair of rollers is provided with a heat fusion projection having a portion inclined with respect to the rotation axis direction, and at least the holding sheet and the base A first heat fusion part and a second heat for heating and pressurizing and heat fusing the material sheet to partition the holding sheet and the base sheet to form the inserted part When forming at least one of the fused portions, the heat-welding protrusion comes into contact with the base sheet, the holding sheet, and the brush portion with a time difference.

  Therefore, there is no shortage of pressure when heating and pressurizing between a pair of rollers. Therefore, even if the production speed (the rotational speed of the pair of rollers) is not suppressed, Can increase the bonding force. Furthermore, since heat fusion can be performed while extruding the air layer stored in the fibrous member by the inclined portion, the amount of heat can be efficiently used for fusion, and a cleaning member having excellent bonding strength can be manufactured. Is possible.

=== Outline of configuration of cleaning member and gripping tool ===
First, the outline | summary of a structure of the cleaning member which concerns on this Embodiment and a holding tool is demonstrated.
1 to 3 show a first embodiment of a cleaning member and a gripping tool according to the present invention. FIG. 1 is a perspective view showing the entire cleaning member and gripping tool, and FIG. -X sectional drawing, FIG. 3 is a top view of the cleaning member of FIG.

  That is, the cleaning member 1 includes a brush portion 2 having a plurality of fibrous members 3, 4, 5, 6 and a strip sheet 7 stacked on the lower portion of the fibrous member 6, and is stacked on the upper portion of the brush portion 2. A base sheet 12 and a holding sheet 13 stacked on top of the base sheet 12, and a target for inserting the insertion portion 16 of the gripping tool 15 between the base sheet 10 and the holding sheet 11. An insertion portion 14 is provided. In FIGS. 2A and 2B, the upper direction is described as “up” and the lower direction as “lower”.

  As shown in FIG. 2A, the brush portion 2 includes a first fibrous member 3, a second fibrous member 4 that is laminated below the first fibrous member 3, and a second fibrous member 4. A four-layered fibrous member 3-6 comprising a third fibrous member 5 laminated at the lower part and a fourth fibrous member 5 laminated at the lower part of the third fibrous member 5, and this four-layered structure The strip members 7 are laminated below the fourth fibrous member 5 of the fibrous members 3 to 6. The fibrous member of the brush portion 2 is not limited to a four-layer structure, and may have a structure of one layer, two layers, three layers, or five layers or more.

  The first fibrous member 3, the second fibrous member 4, the third fibrous member 5, and the fourth fibrous member 6 of the brush portion 2 include a thermoplastic fiber bundle or a part of the thermoplastic fiber. For example, a long fiber bundle opened from tow.

  As the long fiber bundle, for example, a long fiber bundle such as PE (polyethylene), PP (polypropylene), PET (polyethylene terephthalate), Ne (nylon), rayon is preferable, and the core is PP (polypropylene) or PET (polyethylene terephthalate). More preferably, a composite long fiber bundle made of PE and having a sheath made of PE (polyethylene).

  The fineness of each long fiber constituting the long fiber bundle is preferably 1 to 50 dtex, and more preferably 2 to 10 dtex. The long fiber bundle may be constituted by bundling long fibers having the same fineness, or may be constituted by bundling long fibers having different finenesses.

  The long fiber bundles are not limited to those opened from the tow, but are slit yarns (threads made of slit fibers (fibers made by cutting and stretching the film)), split yarns (split fibers (network structure of elongated films) ), Air-through non-woven fabric (non-woven fabric with low fiber density), or a combination of them.

  Each long fiber constituting the long fiber bundle is preferably constituted by crimped fibers. By constituting each long fiber with crimped fibers, the long fiber bundle can be made bulky, and a structure in which dust and dust can be easily taken into the crimped portion can be obtained.

  The strip sheet 7 is formed of a non-woven fabric made of thermoplastic fibers (heat-fusible fibers) or a non-woven fabric containing thermoplastic fibers, similarly to the base sheet 12 and holding sheet 13 described later, and the base sheet 12 described later. Are formed in a rectangular shape having substantially the same width and length. Both edge portions in the width direction of the strip sheet 7 are provided with sawtooth-shaped cuts (not shown) at predetermined intervals over the entire length of the strip sheet 7. A strip (not shown) having saw-toothed edges on both sides is formed on the edge.

  As shown in FIGS. 1 to 3, a base sheet 12 and a holding sheet 13 are laminated in that order on the upper portion of the first fibrous member 3 of the brush portion 2. The insertion portion 14 for inserting the insertion portion 16 of the gripping tool 15 is provided between them.

  The base sheet 12 and the holding sheet 13 are rectangular, and both the sheets 12 and 13 are set to have the same size in the width direction (left and right direction in FIG. 3), as shown in FIG. The dimension in the length direction (vertical direction in FIG. 3) is set to be longer in the base sheet 12, and both ends in the longitudinal direction of the base sheet 12 are outward from the both ends in the longitudinal direction of the holding sheet 13 by a predetermined length. A holding sheet 13 is laminated on the base sheet 12 so as to protrude.

  The base sheet 12 and the holding sheet 13 are formed of a nonwoven fabric made of thermoplastic fibers (heat-fusible fibers) or a nonwoven fabric containing thermoplastic fibers. Examples of thermoplastic fibers include PE (polyethylene), PP (polypropylene), PET (polyethylene terephthalate) fibers, composite fibers of PE (polyethylene) and PET (polyethylene terephthalate), and composites of PE (polyethylene) and PP (polypropylene). Fiber (for example, a composite fiber having a core-sheath structure in which the core is made of PET (polyethylene terephthalate) and the sheath is made of PE (polyethylene)) and the like. Is mentioned.

  The base sheet 12 and the holding sheet 13 may be made of a thermoplastic resin film (PE (polyethylene) film, PP (polypropylene)). Furthermore, you may comprise the base material sheet 12 and the holding sheet 13 by the laminated sheet of a nonwoven fabric and a resin film.

  As shown in FIGS. 1 to 3, the base sheet 12 and the holding sheet 13 are formed in the first layer of the brush portion 2 (first layer) in the first heat-sealing portion 8 that extends over the entire length of the center portion in the width direction. The fibrous member 3, the second fibrous member 4, the third fibrous member 5, the fourth fibrous member 6, and the strip sheet 7) and the first thermal fusion are integrally joined by thermal fusion using thermal fusion means. One layer of the brush portion 2 (first fibrous member 3) in the second heat-sealing portion 11 over the entire length arranged on the outer side (left and right sides in FIG. 2) of the wearing portion 8 with a predetermined interval. The two layers (second fibrous member 4) and the two layers are joined together by heat fusion by means of heat fusion means. Examples of the heat fusion means include a heat seal device and an ultrasonic seal device. In the present embodiment, a heat seal device is used. The details of the first heat fusion part 8 will be described later.

  The base sheet 12 and the holding sheet 13 are bonded to the first heat-sealed portion 8 in the entire layer of the brush portion 2 (first fibrous member 3, second fibrous member 4, third fibrous member 5, fourth fibrous member. 6 and the strip sheet 7) and heat-sealing with the first fibrous member 3 and the second fibrous member 4 of the brush portion 2 in the second heat-sealing portion 11, thereby the base sheet 12 The two ends of the base sheet 12 and the holding sheet 13 that are defined by the first heat-sealing portion 8 and the second heat-sealing portions 11 are opened between the holding sheet 13 and the holding sheet 13. A pair of inserted portions 14 that are bag-shaped spaces are provided, and the insertion portion 16 of the gripping tool 15 can be inserted into the inserted portion 14.

  A pair of thin fusion wires 18 and 18 are provided at a central portion of the base sheet 12 and the holding sheet 13 at a predetermined interval in the width direction of the base sheet 12 and the holding sheet 13. A first heat-sealing portion 8 is provided between the wires 18 and 18. The pair of fusion wires 18 and 18 is a mark for managing the position of the first heat fusion portion 8 in the manufacturing stage, and the first fusion wire 18 and 18 is a mark between the pair of heat fusion wires 18 and 18. By managing whether or not the heat fusion part 8 is arranged with a sensor or the like, a non-defective product and a defective product are selected.

The fused wire 18 is formed through the following manufacturing process.
First, as shown to Fig.4 (a), the holding sheet 13, the base material sheet 12, the 1st fibrous member 3, and the 2nd fibrous member 4 are laminated | stacked. Next, as shown in FIG. 4 (b), the holding sheet 13, the base sheet 12, the first fibrous member 3, and the second fibrous member 4 are positioned at the second heat fusion part 11 and the welding line 18. And are integrally joined by heat fusion means. Next, as shown in FIG. 4C, the third fibrous member 5, the fourth fibrous member 6, and the strip sheet 7 are laminated on the lower part of the second fibrous member 4. Next, as shown in FIG. 4 (d), the holding sheet 13, the base sheet 12, the first fibrous member 3, the second fibrous member 4, the third fibrous member 5, the fourth fibrous member 6, In addition, all the strip sheets 7 are integrally joined by the heat fusion means in the first heat fusion part 8. In this case, the position of the 1st heat welding part 8 and the position of the fusion wire 18 are recognized with a sensor, and it is determined whether it is inferior goods. In the present embodiment, the first heat fusion portion 8 and / or the second heat fusion portion 11 is formed “oblique”, or the first heat fusion portion 8 and / or the second heat. Since the fusion part 11 is provided discontinuously with respect to the insertion direction of the gripping tool 15, the allowable range as a “normal product” is wide and the yield can be increased.

  On the inner side (first heat fusion part 8 side) of each second heat fusion part 11, a fusion line 19 protruding in the direction of the first heat fusion part 8 is formed on the second heat fusion part 11. The insertion portions 16 of the gripping tool 15 are connected to the inserted portions 14 by engaging the arcuate protrusions 16 a of the insertion portions 16 of the gripping tools 15 with the front and rear ends of the fusion wires 19. It is prevented from coming out.

  Further, on both edges in the width direction of the base sheet 12 and the holding sheet 13 (outer portions of the second heat-sealing portion 11), as shown in FIG. 1, a saw-tooth shape is formed at predetermined intervals along the longitudinal direction. The notches 20a are provided, and the notches 20a provide a plurality of strips 20 whose edges are serrated. The strip 20 is not shown in FIGS.

  As shown in FIG. 1, the gripping tool 15 is made of plastic or the like, and includes a pair of rectangular plate-like insertion portions 16 arranged in parallel to each other, and an outer surface of each insertion portion 16. A pair of arcuate protrusions 16 a provided integrally with both ends in the longitudinal direction protruding outward, and a holder portion 17 provided integrally with the ends of both insertion portions 16 are provided.

  Then, both insertion portions 16 of the gripping tool 15 are inserted into both insertion portions 14 of the cleaning member 1 configured as described above, and both protrusions 16 a of each insertion portion 16 are locked to the front and rear ends of the fusion wire 19. By doing so, the cleaning member 1 is attached to the gripping tool 15.

  Then, by holding the holder portion 17 of the gripping tool 15 by hand and bringing the brush portion 2 into contact with the location to be cleaned and moving it in a desired direction, dust, dust, etc. at the location to be cleaned are captured by the brush portion 2, The part to be cleaned will be cleaned.

  In addition, as shown in FIG.2 (b), the 1st fibrous member 3, the 2nd fibrous member 4, the 3rd fibrous member 5, the 4th fibrous member 6 of the brush part 2, and the strip sheet 7 are used. The first heat fusion part 8 is integrally joined by heat fusion by heat fusion means, and the base sheet 12 and the holding sheet 13 are joined to the other first heat fusion part 8 'and the second heat fusion part. 11, the base sheet 12 and the holding sheet 13 are laminated on the upper part of the brush part 2, and the center part of the base sheet 12 and the holding sheet 13 is hot-melted. You may make it join integrally to the center part of the brush part 2 with the adhesive agents 21, such as.

Moreover, as shown in FIG.2 (c), the 1st fibrous member 3, the 2nd fibrous member 4, the 3rd fibrous member 5, and the 4th fibrous member 6 of the brush part 2, and 1st fibrous form The strip sheet 7 provided on the upper part of the member 3 is integrally bonded to the base sheet 12 and the holding sheet 13 by the other first heat fusion at the first heat fusion portion 8 by heat fusion by the heat fusion means. In the fusion part 8 ′ and the second thermal fusion part 11, they are integrally joined by thermal fusion by thermal fusion means, and thereafter, the base sheet 12 and the holding sheet 13 are laminated on top of the strip sheet 7, The sheet 12 and the holding sheet 13 may be integrally joined to the central portion of the strip sheet 7 by an adhesive 21 such as hot melt.
In addition, in the structure shown in FIG.2 (c), it is not necessary to provide the notch | notch on the both sides of the base material sheet 12 and the holding sheet 13 on a sawtooth.

  Further, in FIGS. 2A, 2B, and 2C, the holding sheet 13, the base sheet 12, and the brush part (the first fibrous member 3, the first part) by the heat fusion means in the second heat fusion part 11. All of the two fibrous member 4, the third fibrous member 5, and the fourth fibrous member 6) and the strip sheet 7 may be joined together. In this case, the adhesive 21 in FIGS. 2B and 2C may not be provided. By setting it as such a structure, since the length of the 1st-4th fibrous members 3-6 opened to the left-right side can be shortened, the entanglement of the 1st-4th fibrous members 3-6 Can be prevented. In particular, this is effective in a configuration in which a strip sheet is not provided on the cleaning surface side as shown in FIG.

=== Details of the first heat fusion part ===
Hereinafter, the detail of the 1st heat-fusion part 8 is demonstrated.
First, the formation method of the 1st heat-fusion part 8 is demonstrated.
FIG. 6 shows a case where the base sheet 12 and the holding sheet 13 are placed in the first heat-sealed portion 8 in all layers of the brush portion 2 (first fibrous member 3, second fibrous member 4, first It is a principal part expanded sectional view in the case of heat-sealing with the 3 fibrous member 5, the 4th fibrous member 6, and the strip sheet 7). As shown in FIG. 6, the heat sealing apparatus is provided with a pair of rollers 40 and 41 (FIG. 6 shows only a part of the rollers 40 and 41). Further, the pair of rollers 40 and 41 are provided with heat fusion projections 40a and 41a along the rotation axis direction of the rollers 40 and 41, respectively. The base sheet 12, the holding sheet 13, and the brush portion 2 fed in the direction of the arrow A by the rotation of the rollers 40 and 41 are heated and pressed by the heat fusion projections 40a and 41a, whereby the first heat fusion is performed. A landing portion 8 is formed.

Next, the structure of the 1st heat-fusion part 8 is demonstrated.
As shown in FIGS. 1 and 3, the first heat-sealed portion 8 disposed between the inserted portions 14 of the base sheet 12 and the holding sheet 13 is formed in a zigzag shape. 1 The heat fusion part 8 is continuously provided with an inclined portion 10 that forms a predetermined angle with the insertion direction of the insertion part 16 of the gripping tool 15 into the inserted part 14. In this case, the inclined portions 10 that are alternately inclined in different directions along the longitudinal direction of the base sheet 12 and the holding sheet 13 are continuously provided.

  Note that the entire first heat fusion part 8 may not be formed in a zigzag shape, a part thereof may be a zigzag shape, and the other part may be a linear shape.

  In FIG. 3, the top of the zigzag-shaped portion, that is, both end portions of each inclined portion 10 of the zigzag heat-sealed portion 9 are provided discontinuously with respect to the insertion direction of the gripping tool 15. It constitutes the heat fusion part.

  Moreover, the 1st heat-fusion part 8 is continuously provided without a cut | interruption, when it sees from the direction orthogonal to the insertion direction to the to-be-inserted part 14 of the insertion part 16 of the holding tool 15. FIG. Accordingly, when the holding sheet 13, the base sheet 12, and all the layers of the brush portion 2 are heat-sealed by the first heat fusion portion 8, the plurality of fibrous members 3 to 6 provided in the brush portion 2. Can be reliably heat-sealed to prevent the fibrous members 3 to 6 from falling off.

  In the cleaning member 1 according to the present embodiment configured as described above, the first heat fusion portion 8 is formed in a zigzag shape, whereby the insertion portion of the gripping tool 15 is inserted into the first heat fusion portion 8. Since the inclined portion 10 that is inclined at a predetermined angle (for example, 20 to 45 degrees) with respect to the insertion direction of the 16 inserted portions 14 is provided, the heat fusion portion of the first heat fusion portion 8 is a straight line. Compared with the case where it forms in (1), the contact area with respect to the insertion part 16 of the holding tool 15 of the 1st heat-fusion part 8 can be made small significantly.

  Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error, and the width dimension of each inserted part 14 varies, the gripping tool 15 Therefore, it is not difficult to insert the insertion portion 16 into the inserted portion 14, and the inserting portion 16 of the gripping tool 15 does not come out of the inserted portion 14.

  Moreover, when forming the zigzag-shaped first heat fusion part 8 using a heat seal device provided with a pair of rollers 40, 41 as shown in FIG. 6, the heat fusion protrusions 40a, 41a are What is necessary is just to make a zigzag shape along the rotating shaft direction of the rollers 40 and 41. FIG. In this case, the heat fusion projections 40a and 41a have portions inclined with respect to the rotation axis direction of the pair of rollers 40 and 41.

  When the first heat fusion portion 8 is formed in a straight line, the heat fusion protrusions 40a and 41a are also linear along the rotation axis direction of the rollers 40 and 41, and therefore these heat fusion protrusions 40a. 41a abuts on the base sheet 12, the holding sheet 13, and the brush portion 2 almost simultaneously. For this reason, there is a problem that a sufficient bonding force cannot be obtained due to insufficient pressure applied by the pair of rollers 40 and 41, or that a large load is applied to the base sheet 12 or the like, resulting in tears or holes. obtain. In order to avoid such a problem, the production speed (rotational speed of the pair of rollers 40 and 41) in which no tears or holes are generated must be suppressed, and the productivity cannot be significantly increased. Further, even if the base sheet 12 or the like is not torn or formed in the manufacturing stage, if a weak portion is formed, there is a problem such as tearing due to insufficient strength when cleaning the portion to be cleaned. It can happen.

  On the other hand, in this embodiment, as described above, the heat fusion projections 40a and 41a are formed in a zigzag shape along the rotation axis direction of the pair of rollers 40 and 41. Accordingly, the heat fusion protrusions 40a and 41a abut on the base sheet 12, the holding sheet 13, and the brush portion 2 with a time difference. For example, in FIG. 6, if the base sheet 12, the holding sheet 13, and the brush portion 2 are sent in the right direction in FIG. 6, the zigzag-shaped first heat fusion of the heat fusion protrusions 40 a and 41 a. The portion corresponding to the vertex of the right convex portion of the portion 8 comes into contact with the base sheet 12 first and corresponds to the left vertex of the zigzag-shaped first heat fusion portion 8 among the heat fusion projections 40a and 41a. The portion to be contacted with the base sheet 12 or the like most recently.

  Therefore, according to the present embodiment, there is no shortage of pressure when heating and pressurizing between the pair of rollers 40 and 41 of the heat seal device. Even if the rotation speed) is not suppressed, the bonding force between the base material sheet 12 and the holding sheet 13 and the brush portion 2 can be increased. Furthermore, since it can heat-seal while extruding the layer of air stored in the fibrous members 3 to 6 by the inclined portion 10, the amount of heat can be efficiently used for fusion, and the cleaning member has excellent bonding strength. 1 will be obtained.

In order to insert the insertion portion 16 of the gripping tool 15 into the insertion portion 14 of the cleaning member 1, first, as shown in FIG. 5A, the gripping tool 15 is inserted into the opening of the insertion portion 14. The tip of the part 16 is positioned. Next, as illustrated in FIG. 5B, the insertion portion 16 of the gripping tool 15 is inserted into the insertion portion 14 from the opening. When the insertion portion 16 is inserted into the insertion portion 14, the protrusion 16a of the insertion portion 16 comes into contact with the second heat fusion portion 11, so that the distal end of the insertion portion 16 bends inward, and the distal end of the insertion portion 16 is the first heat. It abuts on the fused portion 8. Then, as shown in FIG. 5 (c), when the insertion portion 16 is further inserted into the inserted portion 14, the tip of the insertion portion 16 is at the first heat fusion portion 8 and the protrusion 16 a is at the second heat fusion portion 11. As shown in FIG. 3, the entire insertion portion 16 is inserted into the inserted portion 14.
Here, in the present embodiment, the inclined portion 10 as described above is provided in the first heat fusion portion 8 or the top portion of the portion formed in a zigzag shape is in the insertion direction of the gripping tool 15. Therefore, the gripping tool 15 is placed in the inserted portion 14 as compared with the case where the heat fusion portion of the first heat fusion portion 8 is formed in a straight line. Friction between the first heat fusion part 8 and the insertion part 16 during insertion can be reduced.
Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error and a variation occurs in the width dimension of each insertion part 14, the insertion part of the gripping tool 15 is inserted. It is not difficult to insert the 16 into the inserted portion 14.

=== Second Embodiment ===
FIG. 7 is a view showing a second embodiment of the cleaning member according to the present invention. In the cleaning member 1, the first heat fusion part 8 has a plurality of heat fusion parts 9 along the insertion direction of the insertion part 16 of the gripping tool 15 into the inserted part 14. The fused portion 9 has an inclined portion 10 that is inclined with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14. Further, each heat fusion portion 9 is inclined in the same direction with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14. The plurality of heat fusion portions 9 are disposed over the entire length of the base sheet 12 and the holding sheet 13. By configuring the first heat fusion portion 8 in this way, the first heat fusion portion 8 is inclined with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14. Will have. Other configurations are the same as those shown in the first embodiment.

  In FIG. 7, the heat fusion portions 9 are inclined at the same angle (for example, 20 to 45 degrees) in the same direction with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14. However, each heat-sealing portion 9 may be inclined at different angles in the same direction with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14.

  In FIG. 7, the corners of the respective heat fusion portions 9 constitute heat fusion portions provided discontinuously with respect to the insertion direction of the gripping tool 15. Specifically, the upper left corner of each heat fusion portion 9 constitutes a heat fusion portion that is discontinuously provided in the insertion direction of the gripping tool 15, and similarly, the lower right corner of each heat fusion portion 9. The portion also constitutes a heat-sealed portion provided discontinuously with respect to the insertion direction of the gripping tool 15.

  In addition, the first heat fusion part 8 has a plurality of heat fusion parts 9, but when viewed from a direction orthogonal to the insertion direction of the insertion part 16 of the gripping tool 15 to the insertion part 14. , Provided continuously without breaks. Accordingly, when the holding sheet 13, the base sheet 12, and all the layers of the brush portion 2 are heat-sealed by the first heat fusion portion 8, the plurality of fibrous members 3 to 6 provided in the brush portion 2. Can be reliably heat-sealed to prevent the fibrous members 3 to 6 from falling off.

  And even if it exists in the cleaning member 1 by this embodiment, compared with the case where the 1st heat fusion part 8 is formed in the straight line similarly to what is shown in 1st Embodiment, it is the 1st heat fusion. The contact area of the part 8 with respect to the insertion part 16 of the gripping tool 15 can be significantly reduced.

  Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error, and the width dimension of each inserted part 14 varies, the gripping tool 15 Therefore, it is not difficult to insert the insertion portion 16 into the inserted portion 14, and the inserting portion 16 of the gripping tool 15 does not come out of the inserted portion 14.

  Moreover, when forming the 1st heat-fusion part 8 using the heat seal apparatus provided with a pair of rollers 40 and 41 as shown in FIG. 6, the heat-welding protrusions 40a and 41a are shown in FIG. What is necessary is just to form in the shape corresponding to the shape of the 1st heat-fusion part 8 to show. In this case, the heat fusion projections 40a and 41a have portions inclined with respect to the rotation axis direction of the pair of rollers 40 and 41.

  Even when the heat fusion protrusions 40a and 41a are formed in a shape corresponding to the shape of the first heat fusion portion 8 shown in FIG. 7, the heat fusion protrusions 40a and 41a are different in time from the base sheet 12, It contacts the holding sheet 13 and the brush part 2. For example, in FIG. 6, if the base sheet 12, the holding sheet 13, and the brush portion 2 are sent in the right direction in FIG. 6, the rightmost portion of the heat fusion portion 9 among the heat fusion protrusions 40 a and 41 a. The portion corresponding to the corner of the heat-seal contacts first with the base sheet 12 or the like, and the portion corresponding to the leftmost corner of the heat-sealing portion 9 among the heat-sealing projections 40a and 41a is the base material most recently. Abuts on the sheet 12 or the like.

  Therefore, even in the present embodiment, there is no shortage of pressure when heating and pressurizing between the pair of rollers 40 and 41 of the heat seal device, so the production speed (the rotation of the pair of rollers 40 and 41) Even if it does not suppress (speed), the joining force of the base material sheet 12, the holding sheet 13, and the brush part 2 can be raised. Furthermore, since it can heat-seal while extruding the layer of air stored in the fibrous members 3 to 6 by the inclined portion 10, the amount of heat can be efficiently used for fusion, and the cleaning member has excellent bonding strength. 1 will be obtained.

Here, in the present embodiment, the inclined portion 10 as described above is provided in the first heat fusion portion 8, or the corner portion of each heat fusion portion 9 is in the insertion direction of the gripping tool 15. On the other hand, since the heat fusion portion provided discontinuously is configured, the gripping tool 15 is inserted into the insertion portion 14 as compared with the case where the heat fusion portion of the first heat fusion portion 8 is formed in a straight line. The friction between the first heat-sealing portion 8 and the insertion portion 16 when inserted into the insertion portion 16 can be reduced.
Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error and a variation occurs in the width dimension of each insertion part 14, the insertion part of the gripping tool 15 is inserted. It is not difficult to insert the 16 into the inserted portion 14.

=== Third Embodiment ===
FIG. 8 is a view showing a third embodiment of the cleaning member according to the present invention. Also in this cleaning member 1, the first heat fusion portion 8 has a plurality of heat fusion portions 9 along the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14. The fused portion 9 has an inclined portion 10 that is inclined with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14. However, unlike the second embodiment, each heat fusion portion 9 is inclined in different directions with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14. The plurality of heat fusion portions 9 are disposed over the entire length of the base sheet 12 and the holding sheet 13. By configuring the first heat fusion portion 8 in this way, the first heat fusion portion 8 is inclined with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14. Will have. Other configurations are the same as those shown in the first embodiment.

  In FIG. 8, each heat fusion portion 9 is inclined at the same angle (for example, 20 to 45 degrees) in directions different from each other with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 to the inserted portion 14. However, each heat-sealing portion 9 may be inclined at different angles in different directions with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14.

  Also in FIG. 8, the corners of each heat fusion portion 9 constitute a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool 15. Specifically, the lower left corner and the lower right corner of each heat fusion portion 9 constitute a heat fusion portion that is discontinuously provided in the insertion direction of the gripping tool 15.

  In addition, the first heat fusion part 8 has a plurality of heat fusion parts 9, but when viewed from a direction orthogonal to the insertion direction of the insertion part 16 of the gripping tool 15 to the insertion part 14. , Provided continuously without breaks. Accordingly, when the holding sheet 13, the base sheet 12, and all the layers of the brush portion 2 are heat-sealed by the first heat fusion portion 8, the plurality of fibrous members 3 to 6 provided in the brush portion 2. Can be reliably heat-sealed to prevent the fibrous members 3 to 6 from falling off.

  And even if it exists in the cleaning member 1 by this embodiment, compared with the case where the 1st heat fusion part 8 is formed in the straight line similarly to what is shown in 1st Embodiment, it is the 1st heat fusion. The contact area of the part 8 with respect to the insertion part 16 of the gripping tool 15 can be significantly reduced.

  Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error, and the width dimension of each inserted part 14 varies, the gripping tool 15 Therefore, it is not difficult to insert the insertion portion 16 into the inserted portion 14, and the inserting portion 16 of the gripping tool 15 does not come out of the inserted portion 14.

  Moreover, when forming the 1st heat-fusion part 8 using the heat seal apparatus provided with a pair of rollers 40 and 41 as shown in FIG. 6, the heat-welding protrusions 40a and 41a are shown in FIG. What is necessary is just to form in the shape corresponding to the shape of the 1st heat-fusion part 8 to show. In this case, the heat fusion projections 40a and 41a have portions inclined with respect to the rotation axis direction of the pair of rollers 40 and 41. In this case, the heat fusion projections 40a and 41a have portions inclined with respect to the rotation axis direction of the pair of rollers 40 and 41.

  Even when the heat fusion protrusions 40a and 41a are formed in a shape corresponding to the shape of the first heat fusion portion 8 shown in FIG. 8, the heat fusion protrusions 40a and 41a have a time difference and the base sheet 12, It contacts the holding sheet 13 and the brush part 2. For example, in FIG. 6, if the base sheet 12, the holding sheet 13, and the brush portion 2 are sent in the right direction in FIG. 4, the rightmost portion of the heat fusion portion 9 among the heat fusion protrusions 40 a and 41 a. The portion corresponding to the corner of the heat-seal contacts first with the base sheet 12 or the like, and the portion corresponding to the leftmost corner of the heat-sealing portion 9 among the heat-sealing projections 40a and 41a is the base material most recently. Abuts on the sheet 12 or the like.

  Therefore, even in the present embodiment, there is no shortage of pressure when heating and pressurizing between the pair of rollers 40 and 41 of the heat seal device, so the production speed (the rotation of the pair of rollers 40 and 41) Even if it does not suppress (speed), the joining force of the base material sheet 12, the holding sheet 13, and the brush part 2 can be raised. Furthermore, since it can heat-seal while extruding the layer of air stored in the fibrous members 3 to 6 by the inclined portion 10, the amount of heat can be efficiently used for fusion, and the cleaning member has excellent bonding strength. 1 will be obtained.

Here, in the present embodiment, the inclined portion 10 as described above is provided in the first heat fusion portion 8, or the corner portion of each heat fusion portion 9 is in the insertion direction of the gripping tool 15. On the other hand, since the heat fusion portion provided discontinuously is configured, the gripping tool 15 is inserted into the insertion portion 14 as compared with the case where the heat fusion portion of the first heat fusion portion 8 is formed in a straight line. The friction between the first heat-sealing portion 8 and the insertion portion 16 when inserted into the insertion portion 16 can be reduced.
Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error and a variation occurs in the width dimension of each insertion part 14, the insertion part of the gripping tool 15 is inserted. It is not difficult to insert the 16 into the inserted portion 14.

=== Fourth Embodiment ===
FIG. 9 is a view showing a fourth embodiment of the cleaning member according to the present invention. Also in this cleaning member 1, the first heat fusion portion 8 has a plurality of heat fusion portions 9 along the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14. The fused portion 9 has an inclined portion 10 that is inclined with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14. However, each heat-sealing portion 9 has a symmetrical shape with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14, and more specifically, the gripping tool 15 is inserted into the inserted portion 14 of the 16. The rectangular shape is symmetrical with respect to the insertion direction, and more specifically, it is a rhombus symmetrical with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the inserted portion 14. A rhombus-shaped heat fusion portion 9 has a side portion 10 in which each side is inclined. By configuring the first heat fusion portion 8 in this way, the first heat fusion portion 8 is inclined with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14. Will have. Other configurations are the same as those shown in the first embodiment.

  The shape of each heat-sealing portion 9 is not limited to a square such as a rhombus, but may be a polygon such as a triangle or a hexagon, or a circle, an ellipse, or a combination of a polygon and a circle or an ellipse. Alternatively, any shape having an inclined portion that is inclined with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14 may be used.

  Moreover, although the 1st heat sealing | fusion part 8 has the several diamond-shaped heat sealing | fusion part 9, it looked from the direction orthogonal to the insertion direction to the to-be-inserted part 14 of the insertion part 16 of the holding tool 15. In some cases, it is provided continuously without a break. Accordingly, when the holding sheet 13, the base sheet 12, and all the layers of the brush portion 2 are heat-sealed by the first heat fusion portion 8, the plurality of fibrous members 3 to 6 provided in the brush portion 2. Can be reliably heat-sealed to prevent the fibrous members 3 to 6 from falling off.

  Also in FIG. 8, the corners of each heat fusion portion 9 constitute a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool 15. Specifically, the left and right corners of each heat fusion portion 9 constitute a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool 15.

  And even if it exists in the cleaning member 1 by this embodiment, compared with the case where the 1st heat fusion part 8 is formed in the straight line similarly to what is shown in 1st Embodiment, it is the 1st heat fusion. The contact area of the part 8 with respect to the insertion part 16 of the gripping tool 15 can be significantly reduced.

  Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error, and the width dimension of each inserted part 14 varies, the gripping tool 15 Therefore, it is not difficult to insert the insertion portion 16 into the inserted portion 14, and the inserting portion 16 of the gripping tool 15 does not come out of the inserted portion 14.

  Moreover, when forming the 1st heat-fusion part 8 using the heat seal apparatus provided with a pair of rollers 40 and 41 as shown in FIG. 6, the heat-welding protrusions 40a and 41a are shown in FIG. What is necessary is just to form in the shape corresponding to the shape of the 1st heat-fusion part 8 to show. In this case, the heat fusion projections 40a and 41a have portions inclined with respect to the rotation axis direction of the pair of rollers 40 and 41.

  Even when the heat fusion protrusions 40a and 41a are formed in a shape corresponding to the shape of the first heat fusion part 8 shown in FIG. 9, the heat fusion protrusions 40a and 41a are different in time from the base sheet 12, It contacts the holding sheet 13 and the brush part 2. For example, in FIG. 6, if the base sheet 12, the holding sheet 13, and the brush portion 2 are sent in the right direction in FIG. 6, the rhomboid heat fusion portion 9 of the heat fusion protrusions 40 a and 41 a. The portion corresponding to the rightmost corner comes into contact with the base sheet 12 or the like first, and the portion corresponding to the leftmost corner of the diamond-shaped heat fusion portion 9 among the heat fusion projections 40a and 41a, It comes into contact with the substrate sheet 12 and the like most recently.

Therefore, even in the present embodiment, there is no shortage of pressure when heating and pressurizing between the pair of rollers 40 and 41 of the heat seal device, so the production speed (the rotation of the pair of rollers 40 and 41) Even if it does not suppress (speed), the joining force of the base material sheet 12, the holding sheet 13, and the brush part 2 can be raised. Furthermore, since it can heat-seal while extruding the layer of air stored in the fibrous members 3 to 6 by the inclined portion 10, the amount of heat can be efficiently used for fusion, and the cleaning member has excellent bonding strength. 1 will be obtained.
Here, in the present embodiment, the inclined portion 10 as described above is provided in the first heat fusion portion 8, or the corner portion of each heat fusion portion 9 is in the insertion direction of the gripping tool 15. On the other hand, since the heat fusion portion provided discontinuously is configured, the gripping tool 15 is inserted into the insertion portion 14 as compared with the case where the heat fusion portion of the first heat fusion portion 8 is formed in a straight line. The friction between the first heat-sealing portion 8 and the insertion portion 16 when inserted into the insertion portion 16 can be reduced.
Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error and a variation occurs in the width dimension of each insertion part 14, the insertion part of the gripping tool 15 is inserted. It is not difficult to insert the 16 into the inserted portion 14.

=== Fifth Embodiment ===
FIG. 10 shows a cleaning member according to a fifth embodiment of the present invention. As shown in FIG. 10, the first heat fusion part 8 in the fifth embodiment has a part formed in a curved shape. More specifically, the first heat fusion part 8 is wavy. Is formed. By forming the first heat fusion portion 8 in a wavy line, the first heat fusion portion 8 has an inclined portion that forms a predetermined angle with the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14. 10 are continuously provided. In FIG. 10, the inclined portion 10 has an arc shape. Other configurations are the same as those shown in the first embodiment.

  In addition, the whole 1st heat-fusion part 8 does not need to be formed in a wavy shape, the one part may be wavy and the other part may be linear. A plurality of wave-shaped heat fusion portions 9 may be provided as shown in FIGS.

  Moreover, the 1st heat-fusion part 8 is continuously provided without a cut | interruption, when it sees from the direction orthogonal to the insertion direction to the to-be-inserted part 14 of the insertion part 16 of the holding tool 15. FIG. Accordingly, when the holding sheet 13, the base sheet 12, and all the layers of the brush portion 2 are heat-sealed by the first heat fusion portion 8, the plurality of fibrous members 3 to 6 provided in the brush portion 2. Can be reliably heat-sealed to prevent the fibrous members 3 to 6 from falling off.

  In FIG. 10, a part of the curved portion of the first heat fusion part 8 constitutes a heat fusion part provided discontinuously with respect to the insertion direction of the gripping tool 15. Specifically, the left and right apexes of the curved portion of each heat fusion portion 9 constitute a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool 15.

  And even if it exists in the cleaning member 1 by this embodiment, compared with the case where the 1st heat fusion part 8 is formed in the straight line similarly to what is shown in 1st Embodiment, it is the 1st heat fusion. The contact area of the part 8 with respect to the insertion part 16 of the gripping tool 15 can be significantly reduced.

  Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error, and the width dimension of each inserted part 14 varies, the gripping tool 15 Therefore, it is not difficult to insert the insertion portion 16 into the inserted portion 14, and the inserting portion 16 of the gripping tool 15 does not come out of the inserted portion 14.

  Moreover, when forming the 1st heat-fusion part 8 using the heat-sealing apparatus provided with a pair of rollers 40 and 41 as shown in FIG. What is necessary is just to form in the shape corresponding to the shape of the 1st heat-fusion part 8 shown in FIG. In this case, the heat fusion projections 40a and 41a have portions inclined with respect to the rotation axis direction of the pair of rollers 40 and 41.

  Even when the heat fusion protrusions 40a and 41a are formed in a shape corresponding to the shape of the first heat fusion portion 8 shown in FIG. 10 or FIG. 11, the heat fusion protrusions 40a and 41a It abuts on the sheet 12, the holding sheet 13, and the brush portion 2. For example, in FIG. 6, if the base sheet 12, the holding sheet 13, and the brush portion 2 are sent to the right in FIG. 6, the arc-shaped heat fusion portion 9 of the heat fusion protrusions 40 a and 41 a. The portion corresponding to the rightmost side of this is in contact with the base sheet 12 or the like first, and the portion corresponding to the leftmost side of the arc-shaped heat fusion portion 9 among the heat fusion projections 40a and 41a is the rearmost. Abuts on the base sheet 12 or the like.

  Therefore, even in the present embodiment, there is no shortage of pressure when heating and pressurizing between the pair of rollers 40 and 41 of the heat seal device, so the production speed (the rotation of the pair of rollers 40 and 41) Even if it does not suppress (speed), the joining force of the base material sheet 12, the holding sheet 13, and the brush part 2 can be raised. Furthermore, since it can heat-seal while extruding the layer of air stored in the fibrous members 3 to 6 by the inclined portion 10, the amount of heat can be efficiently used for fusion, and the cleaning member has excellent bonding strength. 1 will be obtained.

Here, in the present embodiment, the inclined portion 10 as described above is provided in the first heat fusion portion 8 or the portion of the first heat fusion portion 8 formed in a curved shape. Since a part of the heat fusion part is provided discontinuously with respect to the insertion direction of the gripping tool 15, compared to the case where the heat fusion part of the first heat fusion part 8 is formed in a straight line. Thus, friction between the first heat-sealing portion 8 and the insertion portion 16 when the gripping tool 15 is inserted into the insertion portion 14 can be reduced.
Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error and a variation occurs in the width dimension of each insertion part 14, the insertion part of the gripping tool 15 is inserted. It is not difficult to insert the 16 into the inserted portion 14.

=== Sixth Embodiment ===
FIG. 12 shows a sixth embodiment of the cleaning member according to the present invention. In this cleaning member 1, the first heat fusion part 8 has a plurality of heat fusion parts 9 that are provided in the direction of insertion of the insertion part 16 of the gripping tool 15 into the insertion part 14. Yes. Then, among the plurality of heat fusion portions 9, the heat fusion portions adjacent to the direction perpendicular to the insertion direction of the insertion portion 16 of the gripping tool 15 to the insertion portion 14 (left and right direction in FIG. 12) are inserted. The first heat-sealing portion 8 is configured to have a portion 10 that is inclined with respect to the insertion direction by being shifted from each other in the direction. Other configurations are the same as those shown in the first embodiment.

  In FIG. 12, the first heat fusion part 8 has three fusion lines 8 a, 8 b, 8 c formed in dotted lines along the longitudinal direction of the base sheet 12 and the holding sheet 13. These three fusion wires 8a, 8b, 8c are formed in parallel with a predetermined interval in the width direction of the base sheet 12 and the holding sheet 13, and the three fusion wires 8a, 8b, 8c. Each of the short linear fusion portions (point portions on the dotted line) in FIG.

  The heat fusion portions 9 of the three fusion wires 8a, 8b, and 8c are arranged so as to be shifted from each other in the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14, as shown in FIG. Then, the heat fusion part 9 in the fusion line 8a, the thermal fusion part 9 in the fusion line 8b adjacent to the right direction of the thermal fusion part 9, and the right direction of the thermal fusion part 9 are adjacent. The portion 10 inclined with respect to the insertion direction of the insertion portion 16 of the gripping tool 15 into the insertion portion 14 is formed by the heat fusion portion 9 in the fusion line 8c.

  Moreover, although the 1st heat-fusion part 8 has the three fusion | fusion lines 8a, 8b, and 8c formed in the dotted line shape, insertion of the insertion part 16 of the holding tool 15 to the to-be-inserted part 14 is carried out. When viewed from a direction orthogonal to the direction, the slits are provided continuously without a break. Accordingly, when the holding sheet 13, the base sheet 12, and all the layers of the brush portion 2 are heat-sealed by the first heat fusion portion 8, the plurality of fibrous members 3 to 6 provided in the brush portion 2. Can be reliably heat-sealed to prevent the fibrous members 3 to 6 from falling off.

  In FIG. 12, the first heat fusion portion 8 has a plurality of heat fusion portions that are provided scattered in the insertion direction of the gripping tool 15, and is perpendicular to the insertion direction among the plurality of heat fusion portions. The heat fusion portions adjacent to each other in the insertion direction are shifted from each other in the insertion direction, and among the heat fusion portions adjacent to each other in the direction perpendicular to the insertion direction, the heat fusion portions at both ends in the vertical direction are The heat fusion part provided discontinuously with respect to the insertion direction of the gripping tool 15 is configured. Specifically, of the three fusion wires 8a, 8b, and 8c of each heat fusion portion 9, the fusion wires 8a and 8c are provided discontinuously with respect to the insertion direction of the gripping tool 15, respectively. It constitutes the heat fusion part.

  And even if it exists in the cleaning member 1 by this embodiment, compared with the case where the 1st heat fusion part 8 is formed in the straight line similarly to what is shown in 1st Embodiment, it is the 1st heat fusion. The contact area of the part 8 with respect to the insertion part 16 of the gripping tool 15 can be significantly reduced.

  Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error, and the width dimension of each inserted part 14 varies, the gripping tool 15 Therefore, it is not difficult to insert the insertion portion 16 into the inserted portion 14, and the inserting portion 16 of the gripping tool 15 does not come out of the inserted portion 14.

  Moreover, when forming the 1st heat-fusion part 8 using the heat seal apparatus provided with a pair of rollers 40 and 41 as shown in FIG. 6, the heat-welding protrusions 40a and 41a are shown in FIG. What is necessary is just to form in the shape corresponding to the shape of the 1st heat-fusion part 8 to show. In this case, the heat fusion projections 40a and 41a have portions inclined with respect to the rotation axis direction of the pair of rollers 40 and 41.

  Even when the heat fusion protrusions 40a and 41a are formed in a shape corresponding to the shape of the first heat fusion portion 8 shown in FIG. 12, the heat fusion protrusions 40a and 41a are different in time from the base material sheet 12, It contacts the holding sheet 13 and the brush part 2. For example, in FIG. 6, assuming that the base sheet 12, the holding sheet 13, and the brush portion 2 are sent in the right direction in FIG. 6, the portion corresponding to the fusion line 8 c among the thermal fusion projections 40 a and 41 a. However, it comes into contact with the base sheet 12 etc. first, and the portion corresponding to the fusion line 8a of the projections 40a, 41a for heat fusion comes into contact with the base sheet 12 etc. most recently.

  Therefore, even in the present embodiment, there is no shortage of pressure when heating and pressurizing between the pair of rollers 40 and 41 of the heat seal device, so the production speed (the rotation of the pair of rollers 40 and 41) Even if it does not suppress (speed), the joining force of the base material sheet 12, the holding sheet 13, and the brush part 2 can be raised. Furthermore, since it can heat-seal while extruding the layer of air stored in the fibrous members 3 to 6 by the inclined portion 10, the amount of heat can be efficiently used for fusion, and the cleaning member has excellent bonding strength. 1 will be obtained.

Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error, and the width dimension of each inserted part 14 varies, the gripping tool 15 Therefore, it is not difficult to insert the insertion portion 16 into the inserted portion 14, and the inserting portion 16 of the gripping tool 15 does not come out of the inserted portion 14.
Here, in the present embodiment, the inclined portion 10 as described above is provided in the first heat fusion portion 8, or among the heat fusion portions adjacent to the direction perpendicular to the insertion direction, Since the heat fusion portions at both ends in the vertical direction constitute a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool 15, the heat fusion portion of the first heat fusion portion 8. As compared with the case where the holding tool 15 is inserted into the insertion portion 14, the friction between the first heat-sealing portion 8 and the insertion portion 16 can be reduced.
Therefore, even if an error occurs in the position of the first heat fusion part 8 and the second heat fusion part 11 due to a manufacturing error and a variation occurs in the width dimension of each insertion part 14, the insertion part of the gripping tool 15 is inserted. It is not difficult to insert the 16 into the inserted portion 14.

  The first heat fusion part 8 is not limited to the three fusion wires 8a, 8b, and 8c, and may be constituted by two or four or more fusion wires. Further, the fusion wires 8 a, 8 b, 8 c may be inclined at a predetermined angle with respect to the longitudinal directions of the base sheet 12 and the holding sheet 13. Further, the three fusion wires 8a, 8b, 8c may contact each other as shown in FIG. 12A, or as shown in FIG. 12B, adjacent fusion wires 8a-8b. In the meantime, a gap may be formed between 8b-8c. Further, the configuration of the fusion wires 8a, 8b, and 8c is a rectangular shape along the insertion direction of the insertion portion 16 into the inserted portion 14 as shown in FIGS. 12 (a) and 12 (b). It is not limited to a configuration in which the heat-sealed portions are provided discontinuously, but a square shape, a triangular shape, a polygonal shape such as a hexagonal shape, a circular shape, an elliptical shape, or a combined shape of a polygonal shape and a circular shape or an elliptical shape. The structure by which the heat fusion parts, such as these, were provided discontinuously may be sufficient.

=== Other Embodiments ===
In the above-described embodiment, the inclined portion 10 is provided in the thermal fusion portion 9 of the first thermal fusion portion 8, but the inclined portion is provided in the thermal fusion portion of the second thermal fusion portion 11. Alternatively, both the first heat fusion part 8 and the second heat fusion part 11 may be provided with inclined portions.

In the above-described embodiment, the first heat-sealing portion 8 is formed using a heat seal device including a pair of rollers 40 and 41. However, using a heat seal device including a pair of hexahedral blocks. The first heat fusion part 8 may be formed.
In this case, heat fusion protrusions (corresponding to the heat fusion protrusions 40a and 41a in FIG. 6) are provided on the surfaces of the pair of hexahedral blocks facing each other. Then, the pair of hexahedral blocks are brought close to each other, and the base sheet 12, the holding sheet 13, and the brush portion 2 are sandwiched and heated and pressed to form the first heat fusion portion 8.

  Even in the case of using a heat seal device having a pair of hexahedral blocks, the heat sealing unit described in the present embodiment is used to apply heat while extruding the stored air layer. Since fusion can be performed, the amount of heat can be efficiently used for fusion, and the cleaning member 1 having excellent bonding strength can be obtained.

  The above-described configurations and materials of the base sheet 12, the holding sheet 13, and the brush portion 2 are merely examples, and other configurations and materials may be used.

  Various inventions are disclosed in this specification and the drawings. The present invention is not limited to the invention described in the claims, and all the inventions that can be grasped by those skilled in the art from the present specification and drawings regarding the cleaning member including the base sheet 12, the holding sheet 13, and the brush portion 2 are described in the present specification. And the matters described in the drawings.

  In the above-described embodiment, the fusion part of the first heat fusion part and the second heat fusion part is heat-sealed by using a heat seal device provided with a pair of rollers. The fusion part of the first heat fusion part and the second heat fusion part may be heat-sealed. Sonic welding is performed by applying vibration from a horn to a non-woven fabric and is arranged so that an arbitrary pattern is in contact with the non-woven fabric on the opposite side of the horn. In this arbitrary pattern, a plurality of block patterns are arranged on a drum, and the drum rotates at approximately the same speed as the nonwoven fabric, so that the horn and the arbitrary pattern are welded.

  In the above-described embodiment, for example, as shown in FIG. 6, the pair of rollers 40 and 41 is provided with the heat fusion projections 40 a and 41 a along the rotation axis direction of the rollers 40 and 41, respectively. Although it was set as the structure, it is good also as a structure which does not provide the processus | protrusion for heat fusion in the peripheral surface of the other roller by providing the processus | protrusion for heatfusion in any one roller of a pair of rollers 40 and 41.

DESCRIPTION OF SYMBOLS 1 Cleaning member 2 Brush part 3 1st fibrous member 4 2nd fibrous member 5 3rd fibrous member 6 4th fibrous member 7 Strip sheet 8 1st heat-fusion part 8 'Other 1st heat-fusion parts 8a, 8b, 8c Fusing line 9 Thermal fusion part 10 Inclined part 11 Second thermal fusion part 12 Base sheet 13 Holding sheet 14 Inserted part 15 Holding tool 16 Insertion part 16a Protrusion 17 Holder part 18 Fusion line 19 Fusing wire 20 Strip 20a Notch 21 Hot melt 40, 41 Roller 40a, 41a Heat fusion projection

Claims (9)

A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. Because
The inserted portion is provided by partitioning the holding sheet and the base sheet with a heat-sealing portion,
The thermal fusion part has at least a first thermal fusion part and a second thermal fusion part that thermally fuse the holding sheet and the base sheet,
Wherein at least one of the first heat-sealed portion and the second thermal bonding portion may have a heat-sealed portion provided discontinuously to the insertion direction of the gripper,
At least one of the first heat fusion part and the second heat fusion part has a portion formed in a zigzag shape,
The top of the part formed in the zigzag shape comprises the heat-sealing part provided discontinuously with respect to the insertion direction of the said holding tool, The cleaning member characterized by the above-mentioned. A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. Because
The inserted portion is provided by partitioning the holding sheet and the base sheet with a heat-sealing portion,
The thermal fusion part has at least a first thermal fusion part and a second thermal fusion part that thermally fuse the holding sheet and the base sheet,
At least one of the first thermal fusion part and the second thermal fusion part has a thermal fusion part provided discontinuously with respect to the insertion direction of the gripping tool,
At least one of the first heat fusion part and the second heat fusion part has a curved portion,
A cleaning member , wherein a part of the curved portion constitutes a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool. A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. Because
The inserted portion is provided by partitioning the holding sheet and the base sheet with a heat-sealing portion,
The thermal fusion part has at least a first thermal fusion part and a second thermal fusion part that thermally fuse the holding sheet and the base sheet,
At least one of the first thermal fusion part and the second thermal fusion part has a thermal fusion part provided discontinuously with respect to the insertion direction of the gripping tool,
At least one of the first thermal fusion part and the second thermal fusion part has a plurality of thermal fusion parts provided in a scattered manner in the insertion direction of the gripping tool,
Of the plurality of heat fusion portions, the heat fusion portions adjacent to each other in the direction perpendicular to the insertion direction are arranged to be shifted from each other in the insertion direction,
Of the heat fusion portions adjacent in the direction perpendicular to the insertion direction, the heat fusion portions at both ends in the perpendicular direction constitute a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool. The cleaning member characterized by having performed. The said 2nd heat-fusion part has heat-fused all the some fibrous member of the said brush part, the said holding sheet, and the said base material sheet, The any of Claim 1 thru | or 3 characterized by the above-mentioned. The cleaning member according to crab. The heat fusion line for managing the position of a 1st heat fusion part is provided in the both sides of the said 1st heat fusion part, The Claim 1 thru | or 4 characterized by the above-mentioned. The cleaning member as described. A cleaning member according to any one of claims 1 to 5 ,
A gripping tool inserted into the inserted portion;
A cleaning member with a gripping tool, comprising: A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. A manufacturing method of
A pair of rotatable rollers, wherein at least one of the rollers is provided with a heat fusion projection having a portion inclined with respect to the rotation axis direction.
At least the holding sheet and the base sheet are heated and pressed to be heat-sealed,
Forming a first thermal fusion part and a second thermal fusion part for partitioning the holding sheet and the base sheet to form the inserted part;
Forming at least one of the first heat fusion portion and the second heat fusion portion so as to have a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool;
At least one of the first heat fusion part and the second heat fusion part has a portion formed in a zigzag shape,
A method for manufacturing a cleaning member, wherein a top portion of the zigzag-shaped portion constitutes a heat fusion portion provided discontinuously with respect to an insertion direction of the gripping tool. A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. A manufacturing method of
  A pair of rotatable rollers, wherein at least one of the rollers is provided with a heat fusion projection having a portion inclined with respect to the rotation axis direction.
At least the holding sheet and the base sheet are heated and pressed to be heat-sealed,
Forming a first thermal fusion part and a second thermal fusion part for partitioning the holding sheet and the base sheet to form the inserted part;
Forming at least one of the first heat fusion portion and the second heat fusion portion so as to have a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool;
At least one of the first heat fusion part and the second heat fusion part has a curved portion.
A method of manufacturing a cleaning member, wherein a part of the curved portion constitutes a heat fusion portion provided discontinuously in the insertion direction of the gripping tool. A cleaning member having a brush portion having a plurality of fibrous members, a holding sheet, a base sheet provided between the holding sheet and the brush portion, and a portion to be inserted for inserting a gripping tool. A manufacturing method of
A pair of rotatable rollers, wherein at least one of the rollers is provided with a heat fusion projection having a portion inclined with respect to the rotation axis direction.
At least the holding sheet and the base sheet are heated and pressed to be heat-sealed,
Forming a first thermal fusion part and a second thermal fusion part for partitioning the holding sheet and the base sheet to form the inserted part;
Forming at least one of the first heat fusion portion and the second heat fusion portion so as to have a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool;
At least one of the first thermal fusion part and the second thermal fusion part has a plurality of thermal fusion parts provided in a scattered manner in the insertion direction of the gripping tool,
Of the plurality of heat fusion portions, the heat fusion portions adjacent to each other in the direction perpendicular to the insertion direction are arranged to be shifted from each other in the insertion direction,
Of the heat fusion portions adjacent in the direction perpendicular to the insertion direction, the heat fusion portions at both ends in the perpendicular direction constitute a heat fusion portion provided discontinuously with respect to the insertion direction of the gripping tool. A method for manufacturing a cleaning member.

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