JPH062119B2 - Vacuum cleaner - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called floor moving type electric vacuum cleaner in which a cleaner body is moved via a hose.

2. Description of the Related Art Conventionally, in this type of electric vacuum cleaner, one end of a hose is inserted and fixed in an intake port of a cleaner main body. However, in this product, when the hose is twisted, an unreasonable force is applied to cause damage or the like. Therefore, as shown in FIG. 9, it has been proposed to form an intake port on the upper surface side of the cleaner body 1 and rotatably insert the bent insertion pipe 3 connected to one end of the hose 2.

However, in the configuration shown in FIG. 9, the hose 2 cannot be twisted unless the hose 2 revolves around the insertion pipe 3 as a radius. Therefore, unless the operator consciously revolves around the hose 2, the revolution does not occur until the twisting progresses considerably, and this revolution does not sufficiently twist, so that the hose 2 is not damaged. It was easy to occur.

The present invention has solved the above-mentioned conventional problems, and an object of the present invention is to provide an electric vacuum cleaner that reliably prevents the hose from twisting.

Means for Solving the Problems A first means for achieving the above object is a cleaner body having an electric blower, a dust collector, and the like, and an insertion pipe inserted into an intake port of the cleaner body. A hose having an operation pipe connected to an extension pipe communicating with the floor nozzle at one end, and an hose having the other end provided at the other end, and an outer peripheral direction of the insertion pipe for holding the insertion state to the intake port of the cleaner body. A second embodiment of the present invention, which is provided with a buckle provided in a part thereof, wherein a rotary pipe is connected to the end of the hose on the side of the insertion pipe, and the rotation pipe is rotatably fitted in the insertion pipe in the circumferential direction. The means is one in which a rotary pipe is connected to the end of the hose and the rotary pipe is rotatably fitted to an insertion pipe or an operation pipe. The third means is an electric blower, an electric controller, a dust collector. A vacuum cleaner body having a device, and this vacuum cleaner Inserted into the air intake port of the main body, the insertion pipe provided with a remote control terminal electrically connected to the electric controller is connected to one end, an extension pipe connected to the floor nozzle is connected,
Each has a control pipe at the other end of which a remote control operating body is disposed, and a hose wound with a conductive wire for electrically connecting the remote control terminal and the operating body, A rotary pipe provided at the end of the hose is rotatably fitted to at least one of the insertion pipe and the operation pipe, and a pair of ring-shaped rails made of a conductive material is provided on one of the fitted parts and the other is provided on the other. Means that a pair of contact pieces that come into contact with the same rail are attached to each of the rails and the contact pieces are included in a part of the remote control system path, and the third means is the above-mentioned second means. An annular rail base provided with rails on its outer circumference is fixed to the rotary pipe by being fitted outside, while a connecting piece is attached to the insertion pipe and / or the operation pipe.
A fourth means is for a cleaner body having an electric blower, an electric controller, a dust collector, etc., and a remote control which is inserted into an intake port of the cleaner body and electrically connected to the electric controller. Terminal and an insertion pipe provided with a power supply terminal are connected at one end to a floor nozzle that has a built-in agitator and a motor for driving the agitator, and an extension pipe equipped with a power supply line to the motor is connected for remote control operation. Body and an operation pipe for controlling the operation of the electric motor, each of which has an operation pipe at one end thereof, and has the remote control terminal, a conductive wire for electrically connecting the operation body, the power supply terminal, and the electric motor. And a hose around which a conductive wire for electrically connecting the operation control operating body is wound, and a rotary pipe provided at the end of the hose on at least one of the insertion pipe or the operation pipe. Rotatably fitted together, two pairs of ring-shaped rails made of a conductive material are provided on one of these fitting portions, two pairs of ring-shaped rails contacting the same rail on the other, and the same rail on the other. Two pairs of contact pieces that come into contact with each other are attached, and the rail and the contact pieces are included in a part of the remote control system path and the power supply system path to the electric motor. The contact pieces were formed in a substantially mountain shape so that both pieces contacted at two locations in the circumferential direction of the ring-shaped rail. In a sixth means, the two annular rail bases each having a pair of rails provided on the outer circumference in the fourth means are fixed to the rotary pipe so as to be fitted outside, while the insertion pipe and the Alternatively, two pairs of contact pieces were attached to the operation pipe. 7th
In the means, the two inner rails adjacent to each other are set for remote control, and the outer rails are set for power supply. On the other hand, the rail is made of a belt-shaped conductive material in a ring shape, and both ends are joined and bent toward the center. I try to attach it. The ninth means is to shift the positions of the respective cuts in the circumferential direction.

Operation In the above-mentioned main body invention, in the first means, when the hose is twisted, the insertion pipe is rotated to return the twist. In particular,
Since the insertion pipe rotates, the buckle can be easily aligned when inserting the insertion pipe into the intake port of the cleaner body.

In the second and third means, the remote control signal is transmitted to the cleaner body via the rail and the contact piece.

Furthermore, in the fourth and sixth means, in addition to the remote control signal, power is also supplied to the electric motor for driving the agitator of the floor nozzle.

According to the fifth means, the contact between the rail and the contact piece is improved, and an unbalanced load is not applied to the contact piece.

In the seventh means, dust is less likely to enter between the remote control rail and the contact piece due to the voltage applied between the power supply rail and the contact piece.

With the eighth means, the rail can be attached to the rail base by a simple operation of inserting a bent portion into the notch, and with the ninth means, if the end connection portions of the rail are on the same straight line in the axial direction. Therefore, the contact resistance with the contact piece can be reduced.

Example An example will be described below with reference to FIGS. 1 to 8.

In the figure, a cleaner body 13 having an electric blower 11, an electric controller 12, a dust collector, and the like has an intake port 14 formed on its front surface. On the other hand, the hose 15 has an insertion pipe 17 fitted to the intake port 14 at one end and fixed via a buckle 16 and an operation pipe 18 bent at an obtuse angle at the other end. There is. Reference numeral 19 is an extension pipe connected to the operation pipe 18, and has an agitator 2 at the tip.
0 and a floor nozzle 22 incorporating the electric motor 21 for driving the same
Is provided. The operation pipe 18 has an electric blower 11
Body 23 for remotely controlling the vehicle and an operation body 24 for controlling the operation of the electric motor 21 of the floor nozzle 22.
The signal from the remote control operating body 23 is transmitted to the electric controller 12 through a conductive wire (described later) embedded in the hose 15 to control the rotation speed of the electric blower 11 and the like. Further, another conductive wire for power supply (which will be described later) is also embedded in the hose 15, and the cleaner main body 13 to the floor nozzle 22 via the conductive wire, the operating body 24, and the cord 25 along the extension pipe 19. The electric motor 21 can be supplied with electric power. Of course, the start / stop control of the electric motor 21 can be performed by operating the operating body 24.

Next, the connection structure between the hose 15 and the insertion pipe 17 will be described in detail. A rotary pipe 26 that is rotatably fitted in the insertion pipe 17 is fixed to the end of the hose 15. The rotary pipe 26 has two annular recessed grooves 2 on the outer peripheral surface of the tip.
7 and 28, and a flange 31 in which a plurality of lead wire engaging grooves 30 are cut out from a stepped outer peripheral portion 29 is provided at a substantially central portion in the longitudinal direction. Reference numeral 32 denotes a plurality of ribs formed in the outer peripheral longitudinal direction of the rotary pipe 26 between the flange 31 and the concave groove 28, one of which is longer than the other, and has an upward protruding portion 33 on the flange 31 side. On the other hand, 34,3
Reference numeral 5 denotes two annular rail bases fitted to the front outer periphery of the flange 31 of the rotary pipe 26, and is prevented from rotating by engaging the groove portions 36 and 37 formed in the longitudinal direction of the inner peripheral surface with the rib 32. . In order to align the rotary pipe 26 with respect to the circumferential direction, a recess 38 that engages with the protrusion 33 is provided at the rear end edge of one rail base 35, and the front end edge of the rail base 35 and the other rail base 35. At the rear edge of 34, concave and convex portions 39 and 40 are formed, which are engaged with each other.

The reason why the rib 32 having the protrusion 33 is made longer than the others is that the rail base 34 in the circumferential direction of the rotary pipe 26,
This is for facilitating the alignment of 35. Rail stand 3
Two grooves are formed in the circumferential direction of the outer peripheral surfaces of the rails 4, 35, and ring-shaped rails 41, 42, 43, 4 respectively.
4 is attached. Further, notches 45 and 46 extending from the front and rear end edges of the rail bases 34 and 35 to the groove are formed by changing the phase in the same direction.

The rails 41 to 44 are made of a conductive material having a ring shape and both ends thereof are joined to each other and bent toward the center. The rails 41 to 44 are once expanded in diameter and fitted in a groove, and the bent portions 47 to 50 are cut into the rails 45 and 46.
It is attached to the rail bases 34 and 35 by inserting it into the rail and folding it back to both sides. Since the cuts 45 and 46 have different phases in the circumferential direction as described above, the joints of the rails 41 to 44 are not aligned on the same line in the axial direction. From this, it can be understood that there is a reason for aligning the rail bases 34 and 35 with respect to the circumferential direction of the rotary pipe 26.

The adjacent rails 42 and 43 of the rail bases 34 and 35 are set for remote control, and the outer rails 41 and 44 are set for power supply to the electric motor 21, respectively. Therefore, the lead wires 48a and 49a soldered to the bent portions 48 and 49 of the rails 42 and 43 are connected to the remote control conductive wires 51 and 52 of the hose 15, while the bent portions 47 and 50 of the rails 41 and 44 are soldered. The lead wires 47a and 50a soldered to the
Respectively connected to. Each of the lead wires 47a, 48
a, 49, 50a are the rotary pipe 26 and the rail stands 34, 3
Wiring is performed using the gap between the flange and
It is locked and retained in the first lead wire locking groove 30.

Reference numeral 55 denotes a cover for covering the connecting portions between the lead wires 47a to 50a and the conductive wires 51 to 54 (see FIGS. 3 and 4).

Next, an elongated box portion 56 is provided in the longitudinal direction of the outer peripheral surface of the insertion pipe 17. The box portion 56 includes a frame-shaped rib 57 formed on the outer peripheral surface of the insertion pipe 17 and a lid 5.
8 and. The lid 58 is fixed by hooking a claw 59 at one end on a hook portion 60 of the insertion pipe 17 and tightening the other with a screw 6. The front buckle 16 is the box portion 5
It is movably attached to the front of 6, and is always urged in the locking direction via a spring 62. Further, four contact pieces 63, 64, 65, 66 are attached in parallel to the back surface of the lid 58. These contact pieces 63 to 66 are made of a conductive plate having a spring property in a substantially mountain shape, and have a lid 58 on the top wall thereof.
It is fixed by penetrating the protrusion 67 protruding downward and thermally deforming (see FIG. 7). The free ends of the contact pieces 63 to 66 have ribs 57 on the insertion pipe 17.
The rails 41 to 44 are simultaneously contacted at a predetermined angle through a pair of elongated holes 68 formed in a portion surrounded by. Here, the adjacent contact pieces 64 and 65 are for remote control, and correspond to the rails 42 and 43 for the remote control, and the front and rear contact pieces 6 are provided.
3 and 66 are for power supply and correspond to the rails 41 and 44.

To the front of the box portion 56, a pair of remote control terminals 6 connected to the contact pieces 64, 65 with lead wires.
9, 70 are projected, and a pair of power supply terminals 71, 72 connected to the contact pieces 63, 66 by lead wires are projected on both sides of the front part.

With the rotary pipe 26 fitted inside the insertion pipe 17, the stepped rear opening of the insertion pipe 17 is the flange 3
The stepped outer peripheral portion 29 and the tight ring 73 are fitted together. Further, a tight ring 74 that is in contact with the inner peripheral surface of the insertion pipe 17 is also attached to the one concave groove 27 of the rotary pipe 26. The tight ring 73 is formed with a rib 75 which is inserted into the lead wire locking groove 30 of the flange 31 and prevents the lead wires 47a to 50a from being separated.

Further, the protruding piece 7 that is vertically provided from the lid 58 in the other concave groove 28 of the rotary pipe 26 and penetrates the through hole 76 of the insertion pipe 17.
7 is fitted to prevent it from coming off (see FIG. 6).

In the above configuration, the intake port 14 of the cleaner body 13 is set to have a non-round shape into which the box portion 56 can be fitted.

Therefore, the insertion pipe 1 inserted into the intake port 14
7 is locked against rotation and fixed with a buckle 16.

If the hose 15 is twisted, the rotary pipe 26 is rotated in the insertion pipe 17 by the amount of the twist, and the twist is returned. Therefore, an unreasonable force is not applied to the hose 15, and the hose 15 does not become a so-called dumpling shape due to the twist, and the usability is improved accordingly.

Further, in the above-described embodiment, since the electrical connecting means corresponding to the rotating operation is added between the insertion pipe 17 and the rotary pipe 26, even if the rotary pipe 26 rotates with respect to the same insertion pipe 17, the electric blower 11 Motor 21 for driving the agitator 20 in the floor remote control and floor nozzle 22
There is no hindrance to the power supply to.

More specifically, signals from the remote control operating body 23 provided on the operating pipe 18 are transmitted from the conductive wires 51 and 52 of the hose 15 to the lead wires 48a and 49a of the hose 15.
2, 43 → contact pieces 64, 65 → remote control terminals 64, 65, and the electric current flows to the electric controller 12 via the wiring in the cleaner body 13. The electric controller 12 increases / decreases the rotation speed of the electric blower 11 or stops the electric blower 11 according to an input signal from time to time.

On the other hand, the power applied to the cleaner body 13 is the power supply terminal 7
1, 72 → contact pieces 63, 66 → rails 41, 44 → lead wires 47a, 50a → conductive wires 53, 54 of the hose 15 → operating body 24 of the operating pipe 18 and then a cord 25
Is supplied to the electric motor 21 in the floor nozzle 22 via the.

The agitator 20 in the floor nozzle 22 is rotated when the surface to be cleaned is a carpet or the like, and is normally stopped when the surface to be cleaned is a folding surface or the like. Therefore, the start / stop control of the agitator 20 according to the surface to be cleaned is performed by the operating body 24.
It is sufficient to turn on and off the power supply of. Also, if necessary,
It is also possible to change the input to the electric motor 21 with the operating body 24 to control the rotation speed itself of the agitator 20.

Here, the operation of the electrical connecting means provided between the insertion pipe 17 and the rotary pipe 26 will be described.

First, in each of the contact pieces 63 to 66, the shape of each of the contact pieces 63 to 66 is substantially mountain-shaped, and the rails 41 to 44 are contacted at both end portions. Unbalanced load is not applied to and no rattling occurs. In other words, a simple contact piece attaching means can be adopted. Also, a pair of rails 41, 42,
Since 43 and 44 are attached to the rail bases 34 and 35, the remote control can be easily converted to a single function, and the rail attachment itself can be easily performed.

Moreover, since the two rail bases 34 and 35 are unitized by the engagement of the concave and convex portions 39 and 40, the rotary pipe 2
Can be easily attached to 6.

Since the seams of the rails 41 to 44 are arranged on the rail bases 34 and 35, respectively, the joints 63 to 6 are changed.
6 does not contact the seam at the same time,
The rotation of the rotary pipe 26 is smoothed.

In addition, a relatively low voltage electrical connection for remote control, ie rails 42, 43, contacts 64, 65.
Is disposed on the inner side, and the electric connection portion for supplying a relatively high voltage, that is, the rails 41, 44 and the contact pieces 63, 66 are disposed on the outer side, because the electric connecting portion for power supply to which a high voltage is applied does not collect dust. It's just popped off to keep dust out of the low-voltage remote control electrical connections. Therefore, this improves the performance of the remote control function.

The spirit of the present invention is to prevent the hose 15 from twisting,
The electric connection means between the insertion pipe 17 and the rotary pipe 26 is an accessory, and even if the electric connection means is added, it is for remote control or for supplying power to the electric motor 21 in the floor nozzle 22. It is also possible to use only one of them. Further, the rotating portion may be provided on the operation pipe 18 side, or may be provided on both sides.

EFFECTS OF THE INVENTION As described above, according to the present invention, twisting of the hose is substantially eliminated, so that damage to the hose can be eliminated, life characteristics can be improved, and usability is significantly improved. Particularly, in the invention according to claim 1, since the insertion pipe rotates, when the insertion pipe is inserted into the intake port of the cleaner body, the buckle can be aligned regardless of the hose, and it is very easy to operate.
In addition, the hose itself is not loaded and the durability can be further improved.

Further, with the addition of the electrical connecting means, the electric power can be surely supplied to the remote control of the electric blower in the cleaner body and the electric motor for driving the agitator provided in the floor nozzle. Moreover, since the electrical connecting means is one in which the contact piece is brought into contact with the peripheral surface of the rail, the rotating performance of the rotating portion can be maintained excellent. Furthermore, the electrical connection means can be easily assembled and processed, and the connection itself can be surely made, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an essential part showing an embodiment of the present invention, FIG. 2 is an overall perspective view, FIG. 3 is a perspective view of a hose on an insertion pipe side, and FIG. FIG. 5 is a plan view of the rotary pipe portion, FIG. 6 is a side sectional view of a main portion, FIG. 7 is a front sectional view of the same, FIG. 8 is a rear view of the lid, and FIG. 9 is a side view showing a conventional example. is there. 11 ... Electric blower, 12 ... Electric controller, 13 ... Vacuum cleaner body, 14 ... Intake port, 15 ... Hose, 17 ...
Insert pipe, 18 ... Operation pipe, 19 ... Extension pipe, 20 ... Agitator, 21 ... Electric motor, 22 ... Floor nozzle, 23 ... Operating body (for remote control),
24 ... Operation body (for operation control of electric motor), 26 ... Rotating pipe, 34, 35 ... Rail base, 41, 42, 43,
44 ... Rail, 45, 46 ... Notch, 47, 48,
49, 50 ... Bent portion, 51, 52 ... Conductive wire (for remote control), 53, 54 ... Conductive wire (for power supply), 63, 64, 65, 66 ... Contact piece, 69, 70 ...
... Remote control terminals, 71, 72 ... Power supply terminals.

Claims (9)

[Claims] 1. An operating pipe to which a cleaner body having an electric blower, a dust collector, etc., and an extension pipe communicating with a floor nozzle are connected to one end of an insertion pipe inserted into an intake port of the cleaner body. A hose provided at each of the other ends, and a buckle provided in a part of the outer peripheral direction of the insertion pipe for holding the insertion state of the cleaner main body into the intake port. An electric vacuum cleaner in which a rotary pipe is connected to the end of the hose and the rotary pipe is fitted into the insertion pipe so as to be rotatable in the circumferential direction. 2. A cleaner body having an electric blower, an electric controller, a dust collector, etc., and a remote control terminal inserted into an intake port of the cleaner body and electrically connected to the electric controller. The extension pipe communicating with the floor nozzle is connected to one end of the insertion pipe provided with, and each of the other ends has an operation pipe in which a remote control operation body is partially disposed, and the remote control terminal is provided. And a hose wound with a conductive wire that electrically connects the operating body, and a rotary pipe provided at the end of the hose is rotatably fitted to at least one of the insertion pipe or the operation pipe, and these One of the fitting parts is made of conductive material 1
An electric vacuum cleaner in which a pair of ring-shaped rails and a pair of contact pieces that come into contact with the peripheral surface of the rails are attached to the other rail, and the rails and contact pieces are included as part of the remote control system path. 3. An annular rail base provided with rails on its outer periphery is fixed to the rotary pipe by turning it against the outside, while a connecting piece is attached to the insertion pipe and / or the operation pipe. Vacuum cleaner as described. 4. A cleaner body having an electric blower, an electric controller, a dust collector, and the like, and a remote control terminal inserted into an intake port of the cleaner body and electrically connected to the electric controller. , And an insertion pipe provided with a power supply terminal, which is connected to a floor nozzle having an agitator and an electric motor for driving the agitator at one end, and an extension pipe equipped with a power supply line to the electric motor is connected to the remote control operating body. A remote control terminal, a conductive wire for electrically connecting the operating body, the power supply terminal, and the electric motor. A rotary pipe provided with a hose wound with a conductive wire for electrically connecting an operation control operation body, and provided at the end of the hose on at least one of the insertion pipe or the operation pipe. While being rotatably fitted, one pair of ring-shaped rails made of a conductive material is attached to one of these fitting portions, and two pairs of contact pieces that come into contact with the peripheral surface of the rail are attached to the other, respectively. An electric vacuum cleaner in which the rail and the contact piece are included in a part of a remote control system path and a power supply system path to an electric motor. 5. The contact piece is formed in a substantially mountain shape so that both pieces come into contact with two locations in the circumferential direction of the ring-shaped rail.
Or the electric vacuum cleaner described in 4. 6. Two pairs of annular rail bases, each having a pair of rails on the outer circumference, are fitted to the rotary pipe by detenting them while the insertion pipe and / or the operation pipe have two pairs. The electric vacuum cleaner according to claim 4, wherein the contact piece is attached. 7. The electric vacuum cleaner according to claim 6, wherein two adjacent inner rails of the two annular rail mounts are set for remote control and each outer rail is set for power supply. 8. The rail base has an axial notch from both ends, while the rail is made of a belt-shaped conductive material in a ring shape and both ends are joined and bent toward the center. The electric vacuum cleaner according to claim 3 or 6, wherein the rail is attached to the outer periphery of the rail base by being inserted into the notch. 9. The electric vacuum cleaner according to claim 8, wherein the positions of the respective cuts are shifted in the circumferential direction.