JP2018202056A - Extension pipe and vacuum cleaner using the same - Google Patents

Abstract

To provide a vacuum cleaner including an extension pipe light in weight, inexpensive and free from air leakage.SOLUTION: An extension pipe 3 is formed by fusing an almost cylindrical fiber-reinforced resin laminate sheet 18, an almost cylindrical resin support member 19 and a wire 20 by an integrally-molding construction method including insertion molding, is provided with a connection part 45 to which a suction tool (not shown in Fig) for sucking dust can be connected on one end part of the resin support member 19, is free from air leakage because of having a constitution that the connection part 45 to which the suction tool is connected and a cylindrical part formed of the fiber-reinforced resin laminate sheet 18 and the resin support member 19 by integral molding, is simply structured and free from disconnection of the wire 20 because the wire 20 is formed by integral mold including insertion mold, and further has high reliability because of being prevented from invasion of dust and the like into a path (not shown) through which the wire 20 is passed.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an extension tube used in a vacuum cleaner or the like and a vacuum cleaner using the extension tube.

  Conventionally, there has been such an extension tube as shown in FIG. 9 (for example, see Patent Document 1). FIG. 9 is a partial cross-sectional view of a conventional extension pipe disclosed in Patent Document 1.

  In FIG. 9, the conventional extension tube 200 is connected to the terminal 205 so that the conductive wire 202 drawn out from the conductive wire insertion passage 201 passes through the hole 203 a from the lower end of the rib 203 and is received in the storage chamber 204. The cover 207 is placed on the storage chamber 204 in such a manner that the rib 203 is inserted into the opening 206, and is fixed with a screw (not shown) or the like.

  Thereby, since the rib 203 plays a role of positioning the conductive wire 202, the cover 207 can be reliably fixed at a desired position of the connecting portion 208. Furthermore, if the openings 210 at both ends of the cylinder main body 209 are sealed with seal packing (not shown) or the like, the air in the dust ventilation path 211 leaks out of the extension pipe 200 through the conductive wire insertion path 201. It is preventing.

JP 2001-198061 A

  However, the conventional extension pipe disclosed in Patent Document 1 still has room for improvement from the viewpoint of improving air tightness.

  That is, in the conventional extension pipe 200, it is necessary to fit a connecting portion (not shown) that can connect the cylinder main body 209 forming the dust passage 211 and the suction tool (not shown) or the hose (not shown). However, since the connecting portion (not shown) forming the fitting portion is formed of a separate member, the structure becomes complicated and a seal material (not shown) is required to prevent air leakage. There was a risk that the sealing material would be turned up by the negative pressure during suction. Further, the assembly workability is poor, and there is a risk that the conductive wire 202 is disconnected during assembly and use. Furthermore, there is a risk that dust or the like enters the conductive wire insertion path 201 and short-circuits.

  The present invention has been made in view of the above-described problems of the prior art. There is no air leakage, the assembly workability is improved, the conductive wire is not disconnected, and further, dust or the like is inserted in the conductive wire insertion path. It is an object of the present invention to provide a safe and reliable extension tube and a vacuum cleaner that does not intrude.

In order to solve the above-described problems of the prior art, the extension pipe of the present invention is formed by fusing a substantially cylindrical fiber-reinforced resin laminated sheet, a substantially cylindrical resin support member, and a conductor by an integral molding method including insert molding. And a connecting portion to which a suction tool for sucking dust can be connected to one end of the resin support member. The connection portion for connecting the suction tool is formed of a fiber reinforced resin laminated sheet and a resin support member. Because the structure is integrated with the cylindrical part, there is no air leakage, and the conductor has been integrally formed including insert molding, so the structure is simplified, the conductor is not disconnected, and the conductor is stored. Thus, it is possible to provide a safe and highly reliable extension tube without dust or the like entering the conductor insertion passage.

  The vacuum cleaner of the present invention uses the extension pipe according to any one of claims 1 to 6, and can provide a safe and highly reliable vacuum cleaner.

  The extension pipe of the present invention has an inexpensive configuration, does not leak air, improves assembly workability, does not break the conductor, and further, dust and the like are contained in the conductor insertion path in which the conductor is stored. It is possible to provide a safe and reliable extension tube that does not invade. Furthermore, a highly reliable vacuum cleaner can be provided by using the extension pipe | tube of this invention for a vacuum cleaner.

The right view of the vacuum cleaner using the extension pipe in Embodiment 1 of this invention Perspective view of the extension tube Right side view of the extension pipe Sectional view from the right side of the central axis of the cylinder Exploded view of the extension pipe Exploded view of the integrally molded part of the extension pipe Sectional view perpendicular to the central axis at the center of the extension tube Sectional drawing which shows the laminated structure of the fiber reinforced resin lamination sheet of the extension pipe Partial sectional view of a conventional extension pipe

  According to a first aspect of the present invention, a substantially cylindrical fiber-reinforced resin laminated sheet, a substantially cylindrical resin support member and a conductor are fused by an integral molding method including insert molding, and dust is attached to one end of the resin support member. The connection part that can be connected to the suction tool that sucks the suction tool is formed, and the connection part that connects the suction tool is integrally formed with the cylindrical part formed by the fiber reinforced resin laminated sheet and the resin support member. In addition, since the conductor is integrally formed including insert molding, the structure is simplified, the conductor is not disconnected, and further, dust or the like enters the conductor insertion path in which the conductor is stored. It is possible to provide a safe and highly reliable extension tube.

  In the second invention, in particular, the conductor of the first invention is constituted by a wire made of a metal as a raw material, and the strength of the conductor is increased, and further, disconnection is difficult.

  In the third invention, in particular, the conductor of the first or second invention is covered with a resin structure different from the resin material of the fiber reinforced resin laminated sheet or resin support member, and the resin structure is also insert-molded. Is fused to the fiber reinforced resin laminated sheet and the resin supporting member by an integral molding method, and the conductor is covered with a resin structure separate from the fiber reinforced resin laminated sheet and the resin supporting member. Therefore, dust and the like are less likely to enter the conductor insertion path in which the conductor is stored.

  In the fourth invention, in particular, the conductor according to any one of the first to third inventions is arranged on the side where the user cannot see when using the extension pipe, and the joint of the fiber reinforced resin laminated sheet can be seen. It becomes difficult and the appearance is improved.

  In the fifth invention, in particular, a polyolefin-based resin is used for the fiber-reinforced laminated sheet according to any one of the first to fourth inventions, and a resin having a high affinity with the fiber-reinforced resin laminated sheet is used for the resin support member. Thus, the weight can be reduced while ensuring the physical strength against bending.

  In the sixth invention, in particular, at least one end of any one of the first to fifth inventions can be connected to one end of a hose connected to a vacuum cleaner or a suction tool, and the structure is simple. Can be reduced in weight without becoming large. Furthermore, a highly safe extension pipe can be provided without separation of the cylindrical portion and the connecting portion.

  A vacuum cleaner according to a seventh aspect of the present invention uses the extension pipe according to any one of claims 1 to 6, and can provide a safe and highly reliable vacuum cleaner.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a right side view of a vacuum cleaner using an extension pipe in Embodiment 1 of the present invention, FIG. 2 is a perspective view of the extension pipe, FIG. 3 is a right side view of the extension pipe, and FIG. FIG. 5 is an exploded view of the extension tube, FIG. 6 is an exploded view of an integrally molded part of the extension tube, and FIG. Sectional drawing perpendicular to the central axis in the central portion of the extension pipe, FIG. 8 is a cross-sectional view showing the laminated configuration of the fiber reinforced resin laminated sheet of the extension pipe.

  As shown in FIG. 1, the vacuum cleaner 100 using the extension tube 3 in the present embodiment includes a vacuum cleaner body 1 including an electric blower (not shown) that generates suction air, and dust on the surface to be cleaned. A suction tool 2 that sucks the suction pipe, a suction tool 2 to which one end of the extension pipe 3 is connected, and a hose 4 that has one end connected to the other end of the extension pipe 3 and the other end connected to the cleaner body 1. Has been.

  The suction tool 2 includes a rotary brush (not shown) that scrapes dust on the surface to be cleaned and an electric motor (not shown) that drives the rotary brush to rotate, and a suction pipe 5 that transfers dust. The suction tool 2 and the extension pipe 3 are detachably connected via the suction tool pipe 5.

  Further, a tip pipe 7 having a handle portion 6 that is held when the user cleans is provided at the end portion of the hose 4 on the side of the extension tube 3. The hose 4 is detachably connected. Further, a connection pipe 8 is provided at the end of the hose 4 on the cleaner body 1 side, and the inlet 9 and the hose 4 of the cleaner body 1 are detachably connected via the connection pipe 8. ing.

  As shown in FIGS. 2 and 3, the extension pipe 3 has one end connected to the suction pipe 5 and one end connected to the distal end pipe 7. 10, a first cover body 11 that covers the buckle 12 that engages with the suction pipe 5 when connected to the suction tool 2, and a fitting portion 14 that fits with the cleaner body 1 in the stored state. The second cover body 13, the third cover body 15 covering the connection pin 16 electrically connected to the hose 4, and the fourth cover body 15 arranged opposite to the third cover body 15 with respect to the central axis of the pipe body 10. Cover body 17.

  Here, with respect to the extension tube 3, when using the vacuum cleaner 100 in the direction perpendicular to the central axis of the substantially cylindrical shape, the user can see the direction that the user can see vertically upward. The direction that cannot be defined is defined as the vertically downward direction.

As shown in FIG. 6, the fiber reinforced resin laminated sheet 18 is formed in a substantially perfect circle shape. The resin support member 19 includes a rod-like portion into which a wire holding member 21 that houses a wire 20 to be described later is fitted, a connection portion 45 to which the suction pipe 5 can be connected to one end of the resin support member 19, and the resin support member 19. The three points of the second connecting portion 46 to which the tip pipe 7 can be connected at the end are formed by integral molding. The rod-shaped portion of the resin support member 19 is a fiber reinforced resin laminated sheet 18.
It is extended and formed in the center axis direction of both ends.

  Further, the wire holding member 21 is formed in a shape that accommodates a wire rod 20 made of a copper-plated piano wire on the lower side in FIG. 6, and is fitted to the rod-shaped portion of the resin support member 19 in a state in which the wire rod 20 is accommodated. It is configured to fit. Thus, the wire 20 is sandwiched and held between the rod-shaped portion of the resin support member 19 and the wire holding member 21.

  At the center of the lower side portion of the substantially circular fiber reinforced resin laminate sheet 18, there is a slit portion 49 that is a notch hole formed by extending in the direction of the central axis at both ends of the fiber reinforced resin laminate sheet 18. The bar-shaped portion of the support member 19 is provided with an allowable length.

  And the slit which provided the unit which made the state which hold | maintained the wire 20 between the rod-shaped part of the resin support member 19 and the wire holding member 21 in the center of the lower part of the substantially perfect circular fiber reinforced resin lamination sheet 18 By expanding the portion 49, the fiber reinforced resin laminated sheet 18 having a substantially perfect circle shape can be accommodated. Furthermore, the pipe body 10 is formed by integrally forming by insert molding in the state of being housed in this way.

  In the state shown in FIG. 7, a unit in which the wire 20 is held between the rod-shaped portion of the resin support member 19 and the wire holding member 21 is housed inside the substantially circular fiber-reinforced resin laminated sheet 18. The cross section integrally formed by insert molding after the state is shown.

  That is, as shown in FIGS. 4 to 7, the substantially cylindrical pipe body 10 includes a substantially circular fiber-reinforced resin laminated sheet 18 made of polyolefin resin, a resin support member 19 made of polyolefin resin, and copper. It consists of a wire 20 made of plated piano wire and a wire holding member 21 made of polyolefin resin. The fiber reinforced resin laminated sheet 18, the resin support member 19, the wire 20 and the wire holding member 21 are integrally formed by insert molding. Thus, the pipe body 10 is completed.

  Next, the above-described process will be described in detail. As shown in FIG. 7, the wire holding member 21 is provided with a groove portion 28 that can accommodate the wire 20 in a direction perpendicular to the central axis of the pipe body 10, and insert molding is performed. Before performing, the wire 20 is accommodated in the groove portion 28 of the wire holding member 21. Further, the wire holding member 21 is provided with a plurality of welding ribs 29 provided around the groove portion 28, and is fixed to the groove portion 28 by being welded while the wire material 20 is housed in the groove portion 28. Has been.

  As shown in FIG. 7, the boundary part 47 of the fiber reinforced resin laminated sheet 18 is arranged vertically downward. Moreover, the boundary part 47 of the fiber reinforced resin laminated sheet 18 is joined by pouring the resin of the resin support member 19 at the time of insert molding. Further, on the boundary 47 side of the fiber reinforced resin laminated sheet 18, the wire 20 and the wire holding member 21 are arranged parallel to the central axis of the pipe body 10 and on the inner surface side of the fiber reinforced resin laminated sheet 18, The boundary portion 47 of the resin laminated sheet 18 is simultaneously bonded with the resin of the resin support member 19 to be bonded. The tip portions at both ends of the wire rod 20 are bent in a direction perpendicular to the central axis of the pipe body 10.

  As shown in FIG.6 and FIG.7, all the outer peripheral edge parts are C surface cut-processed about the surface of the fiber reinforced resin lamination sheet 18 and the perpendicular | vertical outer side from the central axis of the pipe body 10, and C surface cut processing is carried out. A resin support member 19 is arranged so as to cover the entire outer periphery of the fiber reinforced resin laminated sheet 18.

Further, the fiber reinforced resin laminated sheet 18 has a plurality of through holes 30 formed in the vertical direction from the central axis of the pipe body 10 on the vertical upper side of both ends of the pipe body 10 in the central axis direction. The resin of the resin support member 19 flows into the through hole 30. Furthermore, the fiber reinforced resin laminated sheet 18 is provided with an extension portion 31 in which both end portions in the central axis direction of the pipe body 10 are partially extended only in the vertical upper side, and the extension portion 31 extends vertically from the center axis of the pipe body 10. All the surfaces on the direction side are configured to be covered with the resin support member 19.

  As shown in FIG. 7, the wire rod holding member 21 is provided with a groove 28 that can accommodate the wire rod 20 in a direction perpendicular to the central axis of the pipe body 10. The wire rod 20 is inserted into the wire rod holding member 21 before insert molding. Is housed in the groove 28. Further, a plurality of welding ribs 29 are provided around the groove portion 28 of the wire holding member 21, and the welding material rib 29 is welded in a state where the wire rod 20 is housed in the groove portion 28. It is fixed to the groove 28.

  As shown in FIG. 8, the fiber reinforced resin laminated sheet 18 has a laminated structure of a fiber reinforced layer 32 and a cover layer 33. The fiber reinforced layer 32 includes a core layer 34, fabric layers 35a and 35b, adhesive layers 36a, 36b, and 36c. The cover layer 33 includes a transparent layer 37, a colored layer 38, a transparent protective layer 39, and the like. Specifically, the fiber reinforced layer 32 of the fiber reinforced resin laminated sheet 18 is configured by bonding the fabric layer 35a and the fabric layer 35b through the adhesive layer 36a and the adhesive layer 36b on both surfaces of the core layer 34. .

  The core layer 34 of the fiber reinforced layer 32 is made of, for example, a resin mainly composed of polypropylene, and is laminated in a sheet shape or a film shape. The core layer 34 is preferably made of, for example, a non-foamed polypropylene sheet. This is because, in the non-foamed polypropylene sheet, the laminated layers are not easily crushed during press molding.

  Further, the non-foamed polypropylene sheet can be easily formed by vacuum forming or bending forming utilizing thermal deformation. The woven fabric layer 35a and the woven fabric layer 35b of the fiber reinforced layer 32 are made of, for example, a core-sheath composite fiber yarn in which the core component is a polypropylene resin and the sheath component is a polyolefin resin having a melting point lower than that of the core component. By making the sheath component a polyolefin resin component having a low melting point, heat adhesion is facilitated. The fabric of the fabric layer 35a and the fabric layer 35b may be a fabric having any structure such as plain weave, twill weave (oblique fabric), satin weave, and other changed weaves.

  The adhesive layers 36a, 36b, 36c of the fiber reinforced layer 32 are made of, for example, a transparent heat-sealable polyolefin film. As a result, the core layer 34 can be bonded to the fabric layer 35a and the fabric layer 35b by heat and pressure. As a result, the fiber-reinforced layer 32 can be easily laminated and integrated.

  The fiber reinforced resin laminated sheet 18 is formed by integrating the cover layer 33 on one surface layer of the fiber reinforced layer 32 via the adhesive layer 36c. At this time, the cover layer 33 is preferably made of, for example, a transparent polyolefin resin sheet. That is, it is preferable that the cover layer 33 has transparency that allows the fabric layer 35a to be seen through the outside. By seeing the fabric layer 35a from the outside, the fiber-reinforced resin laminated sheet 18 looks high in strength. Furthermore, the beautiful appearance of the fiber reinforced resin laminated sheet 18 can be kept high.

  Specifically, the cover layer 33 is configured by laminating a transparent layer 37 of a polypropylene resin sheet, a colored layer 38, and a protective layer 39 of a polypropylene resin sheet. By putting the thin colored layer 38 between the protective layer 39 and the transparent layer 37, it is possible to make the fabric layer 35a of the white fiber reinforced layer 32 look a dyed texture.

That is, in the fiber reinforced resin laminated sheet 18 in the present embodiment, first, the fabric layers 35a and 35b are bonded and integrated on both surfaces of the core layer 34 of the fiber reinforced layer 32 via the adhesive layers 36a and 36b. . Thereby, the fiber reinforced layer 32 is formed. Next, the transparent layer 37, the colored layer 38, and the protective layer 39 forming the cover layer 33 are laminated and integrated on the surface of the fabric layer 35a of the fiber reinforced layer 32 via the adhesive layer 36c. Thereby, the fiber reinforced resin laminated sheet 18 is formed.

  Note that the transparent layer 37, the colored layer 38, and the protective layer 39 may be laminated and integrated in advance as the cover layer 33. In this case, the integrated cover layer 33 is laminated and integrated with the fiber reinforced layer 32 via the adhesive layer 36c. Thereby, the fiber reinforced resin laminated sheet 18 is formed.

  As shown in FIGS. 4 and 5, the first cover body 11 is arranged on the pipe body 10 so as to cover the end face on the connection side with the suction pipe 5 and the vertical upper side of the resin support member 19. The pipe body 10 and the first cover body 11 are coupled by a screw 48 and an engaging portion (not shown) provided in the first cover body 11.

  Between the pipe body 10 and the first cover body 11, a buckle 12 that engages with the suction tool pipe 5 when connected to the suction tool 2 is rotatably arranged. A buckle spring 22 is disposed between them. In addition, a terminal storage portion 23 is provided on the end surface of the pipe body 10 on the vertical upper side and on the connection side with the suction pipe 5, and the connection terminal 24 is stored and held therein.

  The second cover body 13 disposed on the opposite side of the first cover body 11 with respect to the central axis of the pipe body 10 is coupled to the pipe body 10, the screw 48 and the double-sided tape 25, and the second cover. The first cover body 11 is engaged with an engaging portion 13 a provided on the body 13. Moreover, the 2nd cover body 13 is provided with the fitting part 14 fitted with the cleaner body 1 in the accommodation state. The wire 20 covered by the second cover body 13 is soldered to the lead wire 24a connected to the connection terminal 24, and the lead wire 24a is a first wiring rib 26a provided in the pipe body 10. Wired to

  A third cover body 15 is disposed on the pipe body 10 so as to cover the end face on the connection side with the tip pipe 7 and the vertical upper side of the resin support member 19, and the pipe body 10 and the third cover body 15. Are connected by a screw 48. Further, a terminal storage holding portion 27 is provided on the end surface of the pipe body 10 on the vertical upper side and on the connection side with the tip pipe 7, and the connection pin 16 is stored and held.

  The fourth cover body 17 disposed on the opposite side of the third cover body 15 with respect to the central axis of the pipe body 10 is coupled to the pipe body 10 with a screw 48 and is provided on the fourth cover body 17. The engaged portion 17a is engaged with the third cover body 15. Further, the wire 20 covered with the fourth cover body 17 is solder-connected to the lead wire 16a connected to the connection pin 16, and the lead wire 16a is a second wiring provided on the pipe body 10. It is wired to the rib 26b.

  The operation and action of the extension tube 3 of the vacuum cleaner in the present embodiment configured as described above will be described below.

  When the user connects the suction tool 2, the extension pipe 3, and the hose 4 and starts cleaning using the electric vacuum cleaner 100, suction air is generated by an electric blower (not shown). The user can operate the suction tool 2 by gripping the handle portion 6, and dust on the surface to be cleaned is sucked together with air from the suction tool 2. Air containing dust sucked from the suction tool 2 flows into the cleaner body 1 through the extension pipe 3 and the hose 4, and then only dust is collected by a dust collector (not shown). .

  In the present embodiment, since the pipe body 10 that forms the air passage with the resin having high affinity with the fiber reinforced resin laminated sheet 18 made of polyolefin resin having relatively small specific gravity among the resins is configured, The weight can be reduced while ensuring the physical strength.

  Moreover, since the connection part 45 which can connect the pipe body 10 which forms a ventilation path, and the suction tool 2 which attracts | sucks dust is insert-molded, a structure is simplified and weight reduction can be achieved without becoming large sized. is there. Furthermore, since the cylindrical pipe body 10 and the resin support member 19 are not separated, the extension pipe 3 with high safety can be provided.

  Further, in the present embodiment, a connecting portion 45 that can connect the suction tool 2 that can suck dust to one end of the pipe body 10 that forms the air passage, and a hose 4 that is connected to the cleaner body 1 can be connected to one end. Since the connecting part 46 is insert-molded, there is no part fitting part in the air passage, the structure is simplified, and the weight can be reduced without increasing the size.

  Further, in the present embodiment, since both the fiber reinforced resin laminate sheet 18 and the resin support member 19 are formed of a polyolefin resin, the fiber reinforced resin laminate sheet that has affinity at the joint and forms an air passage. It can prevent that the junction part of the pipe body 10 comprised by 18 and the resin support member 19 isolate | separates.

  Furthermore, it is possible to prevent the joint portion between the connecting portions 45 and 46 formed by the pipe body 10 and the resin support member 19 forming the ventilation path from being separated, and to provide the extension pipe 3 with high safety. It can be done.

  Further, in the present embodiment, the resin of the resin support member 19 that has entered the through hole 30 provided in the fiber reinforced resin laminated sheet 18 becomes a resistance from the central axis direction of the pipe body 10 and forms a ventilation path. It is possible to prevent the joint portions of the connection portions 45 and 46 formed by the pipe body 10 and the resin support member 19 from being separated, and to provide the extension tube 3 with high safety.

  Further, in the present embodiment, since the bonding strength of the outer periphery of the fiber reinforced resin laminated sheet 18 is increased and the rigidity against peeling is also increased, the fiber reinforced resin laminated sheet 18 and the resin supporting member 19 are formed. It is possible to prevent the joint portion of the pipe body 10 from being separated. Furthermore, it is possible to prevent the joint portion between the connecting portions 45 and 46 formed by the pipe body 10 and the resin support member 19 forming the ventilation path from being separated, and to provide the extension pipe 3 with high safety. It can be done.

  Further, in the present embodiment, when the connecting portions 45 and 46 formed of the resin support member 19 receive an external force perpendicular to the central axis direction of the pipe body 10, the fiber reinforced resin laminated sheet 18 and the resin having different rigidity are used. In order to reduce the burden on the boundary of the support member 19, it is possible to prevent separation of the joint portions of the connection portions 45 and 46 formed of the pipe body 10 and the resin support member 19 that form the air passage, It is possible to provide the extension pipe 3 having high properties.

  Furthermore, in the present embodiment, since the inner wall of the fiber reinforced resin laminated sheet 18 of the pipe body 10 that forms the air passage is formed by the fabric layer 35b, a large number of minute irregularities are formed on the inner surface that is in contact with dust. . This minute unevenness reduces the contact area of the sucked relatively large dust etc. to the inner surface of the air passage and reduces the resistance when sucking relatively large dust etc. It is possible to prevent clogging of the inner surface.

The wire 20 is covered with a resin structure (not shown) different from the resin material of the fiber reinforced resin laminated sheet 18 and the resin support member 19, and the resin structure is also a fiber reinforced resin laminated sheet by an integral molding method including insert molding. 18 and the resin support member 19, the wire 20 is covered with a resin structure different from the fiber reinforced resin laminated sheet 18 and the resin support member 19, so that the wire 20 is accommodated. It is possible to make it more difficult for dust or the like to enter the conductor insertion path.

  In addition, by using the extension tube 3 in the above-described embodiment for the vacuum cleaner 100, it is possible to provide the lightweight, safe and highly reliable vacuum cleaner 100.

  The extension pipe according to the present invention has a structure in which the connecting portion for connecting the suction tool is integrally formed with the cylindrical portion formed of the fiber reinforced resin laminated sheet and the resin supporting member, so that there is no air leakage, and the conductor is insert-molded. The structure is simplified, the conductor is not disconnected, and the dust is not invaded into the conductor insertion path in which the conductor is accommodated. Therefore, it is safe and reliable. Since the extension tube can be provided, it can be applied to various vacuum cleaners regardless of household use, business use, and industrial use.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Suction tool 3 Extension pipe 4 Hose 5 Suction tool pipe 6 Handle part 7 Tip pipe 8 Connection pipe 9 Air inlet 10 Pipe body 11 First cover body 12 Buckle 13 Second cover body 13a, 17a Engagement Part 14 Fitting part 15 3rd cover body 16 Connection pin 16a, 24a Lead wire 17 4th cover body 18 Fiber reinforced resin laminated sheet 19 Resin support member 20 Wire rod (conductor)
DESCRIPTION OF SYMBOLS 21 Wire rod holding member 22 Buckle spring 23 Terminal storage part 24 Connection terminal 25 Double-sided tape 26a 1st wiring rib 26b 2nd wiring rib 27 Terminal storage holding part 28 Groove part 29 Welding rib 30 Through-hole 31 Extension part 32 Fiber reinforcement layer 33 Cover layer 34 Core layer 35a, 35b Textile layer 36a, 36b, 36c Adhesive layer 37 Transparent layer 38 Colored layer 39 Protective layer 45, 46 Connection part 47 Boundary part 48 Screw 49 Slit part 100 Vacuum cleaner

Claims (7)

A suction tool that fuses a substantially cylindrical fiber-reinforced resin laminated sheet, a substantially cylindrical resin support member, and a conductor by an integral molding method including insert molding, and sucks dust into one end of the resin support member. An extension tube with a connection that can be connected. The extension pipe according to claim 1, wherein the conductor is made of a wire made of a metal as a raw material. The conductor is covered with a resin structure different from the resin material of the fiber reinforced resin laminated sheet or the resin support member, and the fiber reinforced resin laminated sheet and the resin support are also formed by an integral molding method including insert molding. The extension pipe according to claim 1, wherein the extension pipe is fused to the member. The extension pipe according to any one of claims 1 to 3, wherein the conductor is arranged on a side where a user cannot see when using the extension pipe. The extension pipe according to any one of claims 1 to 4, wherein a polyolefin-based resin is used for the fiber-reinforced laminated sheet, and a resin having a high affinity with the fiber-reinforced resin laminated sheet is used for the resin support member. . The extension pipe according to claim 1, wherein at least one end is connectable to one end of a hose connected to the vacuum cleaner or a suction tool. The vacuum cleaner using the extension pipe of any one of Claims 1-6.

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