JPH0551233U - Extension tube device for vacuum cleaner - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the weight and the size of pipes, facilitate the automation of production, and reduce the number of production steps. [Structure] An extension pipe 15 is connected between a suction port 13 equipped with an electric motor 17 and a flexible pipe 12 connected to a cleaner body 11, and the suction port is provided at the end of the extension pipe 15 on the suction port 13 side. A connector 33 that is detachably connected to the connector on the 13 side is provided, and a connector 27 that is detachably connected to the connector on the flexible tube 12 side at the end of the extension tube 15 on the flexible tube 12 side. An extension for an electric vacuum cleaner, in which the connecting members 33, 27 are electrically connected to each other, and electric power is supplied from the cleaner body 11 to the electric motor 17 of the suction port 13 through the connecting members 33, 27. In the pipe device, a fitting groove 39 is axially provided on the outer peripheral portion of the extension pipe 15 so as to extend between the connecting members 27 and 33, and a conductive wire 40 is fitted in the fitting groove 39 to form a conductive wire. Both ends of 40 are connected to the connecting members 27 and 33, respectively.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an extension tube device for a vacuum cleaner in a vacuum cleaner having an electric motor at a suction port.

[0002]

[Prior Art]

 As shown in FIG. 20, an extension tube device for an electric vacuum cleaner connected between a suction port equipped with an electric motor and a flexible tube connected to the cleaner body has a suction port end portion of the extension tube 1 as shown in FIG. A female connector 3 that is detachably connected to the suction port side connector, and a male connection that is detachably connected to the flexible tube side connector at the end of the extension tube 1 on the flexible tube side. There is one in which a tool 4 is provided, the connecting tools 3 and 4 are electrically connected to each other, and electric power is supplied from the cleaner body to the electric motor of the suction port through the connecting tools 3 and 4.

However, in the conventional extension pipe device of this type, as shown in the same figure, an insulated electric wire 6 formed by applying an insulating coating to a conductive wire is provided on the outer peripheral portion of the extension pipe 1 across the connectors 3, 4. Axially, remove the insulation coating from both ends of the insulated wire 6, connect them to the connectors 3 and 4 by soldering, etc., and attach the protective cover 7 to the extension tube 1 to cover the insulated wire 6. It was

[0004]

[Problems to be solved by the device]

 In the conventional case, since the electric wire 6 for connecting the connectors 3 and 4 is formed by applying an insulating coating to the conductive wire, the diameter of the electric wire 6 is relatively large. It also became heavier. In addition, the wiring of the electric wire 6 and the connection to the connectors 3 and 4 were troublesome, which made automation of production difficult and required a large number of production steps.

In view of the above problems, the present invention is intended to reduce the weight and the size of the tube, facilitate the automation of production, and reduce the number of production steps.

[0006]

[Means for Solving the Problems]

 In order to solve this technical problem, the technical means of the present invention is such that an extension pipe 15 is connected between an intake port 13 equipped with an electric motor 17 and a flexible pipe 12 connected to the cleaner body 11 to extend the extension. A connector 33 that is detachably connected to a connector on the suction port 13 side is provided at the end of the pipe 15 on the suction port 13 side, and the end of the extension pipe 15 on the flexible pipe 12 side is connected to the flexible pipe 12 side. Is provided with a connector 27 that is detachably connected to the connector, electrically connects the connectors 33 and 27 to each other, and connects the cleaner 17 to the electric motor 17 of the suction port 13 through the connectors 33 and 27. In the extension tube device for an electric vacuum cleaner, which is configured to supply electric power to the connector, a fitting groove 39 is provided in the axial direction on the outer peripheral portion of the extension tube 15 so as to extend between the connection tools 27 and 33. The conductive wire 40 is fitted in the mating groove 39, and both ends of the conductive wire 40 are connected to the connecting members 27 and 33, respectively.

[0007]

[Action]

 When the extension tube 15 is connected between the flexible tube 12 connected to the cleaner body 11 and the suction port 13, the connection tools 27 and 33 at both ends of the extension tube 15 are connected to or connected to the flexible tube 12 respectively. It is possible to supply electric power from the cleaner body 11 to the electric motor 17 of the suction port 13 by being connected to the connector on the side of the mouth 13 and via the connectors 27, 33 and the conductive wire 40. This conductive wire 40 can be easily wired by fitting and inserting it in the fitting groove 39.

[0008]

【Example】

 Hereinafter, the present invention will be described with reference to the illustrated embodiment. In FIG. 19, 11 is a cleaner body and 12 is a flexible tube connected to the cleaner body 11. Reference numeral 13 denotes a suction port, which is connected to the flexible tube 12 of the cleaner body 11 via the operation switch section 14 and a pair of extension tubes 15, and the power brush 16 is attached to the suction port 13 so as to be rotatable about its axis. An electric motor 17 for rotating the power brush 16 is provided.

1 to 10, each of the pair of extension pipes 15 is formed of a synthetic resin such as vinyl chloride into a cylindrical shape, and a male connecting portion 22 is provided at an end of the extension pipe 15 on the cleaner body 11 side. The female connecting portion 23 is provided at the end portion on the suction port 13 side. The male connecting part 22 is removably internally fitted and fixed to the extension pipe 15 of the previous stage or the female connecting part of the operation switch unit 14, and the female connecting part 23 is attached to and detached from the extension pipe 15 of the next stage or the male connecting part of the suction port 13. It can be freely fitted and fixed.

Further, a male connecting portion 26 is provided on the extension pipe 15 on the cleaner body 11 side, and a pair of male connecting members 27, which are terminal pins, are attached to the male connecting portion 26 so as to project outward. .. Further, as shown in FIGS. 11 to 13, a cover body 30 for closing the base side of the male connector 27 is detachably attached to the male connecting portion 26. A female connecting portion 32 is provided on the suction port 13 side of the extension tube 15, and a pair of female connecting members 33, which are electrode plates, are attached to the female connecting portion 32, and also shown in FIGS. 14 to 16. Thus, the cover body 35 for closing the female connector 33 is detachably attached.

The male connector 27 of the male connector 26 and the female connector 33 of the female connector 32 are for electrically connecting the power source on the cleaner body 11 side and the electric motor 17 on the suction port 13. When the male connecting portion 22 of the extension pipe 15 is fitted in and fixed to the extension pipe 15 of the preceding stage or the female coupling portion 23 of the operation switch unit 14, the male connector 27 is attached to the extension pipe 15 of the preceding stage or the operation switch unit 14. It is electrically connected to the female connector 33, and when the female connecting portion 23 of the extension pipe 15 is externally fitted and fixed to the extension pipe 15 of the next stage or the male connecting portion 22 of the suction port 13, the extension pipe 15 of the next stage is attached. Alternatively, the male connector of the suction port 13 is inserted through the insertion hole 36 of the female connecting portion 32 and electrically connected to the female connector 33.

A pair of fitting grooves 39 is axially provided on the outer peripheral portion of each extension pipe 15 so as to extend between the connecting members 27 and 33, and a conductive wire 40 such as a copper wire is provided in the pair of fitting grooves 39. 17 and 18, as shown in FIGS. 17 and 18, both ends of the conductive wire 40 are engaged with the locking grooves 41, 42 provided at the bases of the connecting tools 27, 33, respectively, whereby a pair of Conductive lines 40 are electrically connected to the connectors 27 and 33, respectively.

Engagement grooves 44 are provided outside the fitting grooves 39 on the outer peripheral portion of the extension pipe 15 over substantially the entire length, and a protective cover 45 is engaged and held in the engagement grooves 44, and a pair of protective covers 45 are provided. The conductive wire 40 is covered over substantially the entire length. In the above embodiment, the male connector 27 is provided at the end of the extension tube 15 on the flexible tube 12 side, and the female connector 33 is provided at the end of the extension tube 15 on the suction port 13 side. A female connector 33 may be provided at the end of the pipe 15 on the flexible pipe 12 side, and a male connector 27 may be provided at the end of the extension pipe 15 on the suction port 13 side.

[0014]

[Effect of the device]

 According to the present invention, the fitting groove 39 is axially provided on the outer peripheral portion of the extension pipe 15 so as to extend between the connecting members 27, 33, and the conductive wire 40 is fitted in the fitting groove 39. Since both ends of the conductive wire 40 are respectively connected to the connecting members 27 and 33, the conductive wire 40 is in a state of being embedded and fitted in the outer peripheral portion of the extension tube 15, and therefore, the extension tube device is thinned, The weight can be reduced. Moreover, the conductive wire 40 may be fitted in the fitting groove 39, and the conductive wire 40 can be wired very easily. In addition, when the conductive wire 40 is connected to the connectors 27 and 33, there is no need to peel off the insulation coating as in the conventional case, the connection can be made easily, automation of production can be facilitated easily, and the number of production man-hours is increased. Can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention with a cover removed.

FIG. 2 is a front view with a cover removed.

FIG. 3 is a side view with a cover removed.

FIG. 4 is a side sectional view with a cover attached.

FIG. 5 is a perspective view of a main part with a cover removed.

FIG. 6 is a perspective view of another main part with a cover removed.

FIG. 7 is a front view with a cover attached.

FIG. 8 is a side view with a cover attached.

FIG. 9 is a left side view with a cover attached.

FIG. 10 is a right side view with the cover attached.

FIG. 11 is a plan view of a cover body.

FIG. 12 is a front view of a cover body.

FIG. 13 is a side view of the cover body.

FIG. 14 is a plan view of another cover body.

FIG. 15 is a front view of a cover body.

FIG. 16 is a side view of the cover body.

FIG. 17 is a perspective view of a female connector part.

FIG. 18 is a perspective view of a male connector part.

FIG. 19 is a perspective view of the entire vacuum cleaner.

FIG. 20 is a side sectional view showing a conventional example.

[Explanation of symbols]

 11 Vacuum cleaner body 12 Flexible tube 13 Suction port 15 Extension tube 17 Electric motor 21 Extension tube 27 Male connector 33 Female connector 39 Mating groove 40 Conductive wire

Claims (1)

[Scope of utility model registration request] 1. An extension pipe (15) between a suction pipe (13) equipped with an electric motor (17) and a flexible pipe (12) connected to a cleaner body (11).
Is connected to the suction port (13) side end of the extension pipe (15).
A connector (33) that is detachably connected to the connector on the (13) side is provided, and the flexible tube (12) is provided at the end of the extension tube (15) on the flexible tube (12) side.
A connecting tool (27) that is detachably connected to the side connecting tool is provided to electrically connect the connecting tools (33) (27) to each other.
(33) In the extension tube device for the electric vacuum cleaner, which is configured to supply electric power from the cleaner body (11) to the electric motor (17) of the suction port (13) via the (27), A fitting groove (39) is provided in the outer peripheral portion in the axial direction so as to extend between the connection tools (27) and (33), and a conductive wire (40) is fitted into the fitting groove (39) to provide a conductive material. An extension tube device for an electric vacuum cleaner, characterized in that both ends of the wire (40) are connected to the connecting tools (27) (33), respectively.