JPH027923A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To improve dust collecting efficiency without spoiling operatability by rotating an agitator in the direction opposite to the moving direction of a suction device for a floor with a first switching means, and by rotating a driving roller in the same direction as that of the suction device for the floor with a second switching means. CONSTITUTION:In a suction chamber 6 formed at the front section of a floor suction device 2, an agitator 7 driven rotationally by a first motor 8 with an agitating body butted to a cleaning surface is set. In the rear section of the floor suction device 2, a driving roller 10 driven rotationally by a second motor 11 with the external surface butted to the cleaning surface is set. Besides, a first and a second switching means 19, 23 for changing over the rotational direction of the first and second motors 8, 11 worked with the forward and backward movement of the floor suction device 2 are arranged. By the first and second switching means 19, 23, the agitator 7 is rotated in the direction opposite to the moving direction of the floor suction device 2, and the driving roller 10 is rotated in the same direction as the moving direction of the floor suction device 2.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a vacuum cleaner.

2. Description of the Related Art The structure of a conventional vacuum cleaner of this type will be described with reference to the drawings.

In Figures 6 to 9, 101 is an electric blower 1 inside.
21. A vacuum cleaner body equipped with a dust collection part (not shown), and a power nozzle (floor suction tool) 102 in this vacuum cleaner body 101.
are communicated via an extension pipe 103 and a hose 104. Reference numeral 105 denotes a power cord provided along the extension pipe 103, and by connecting it to the four wires buried in the hose 104, the cleaner main body 101 and the power nozzle 102 are electrically connected.

A rotating brush 107 is provided inside the suction chamber 106 on the front side inside the power nozzle 102, and
The rotation of an electric motor [5108] provided at the rear of the belt 109 is transmitted through the belt 109. Incidentally, the tip of the extension pipe 103 and the suction chamber 106 are communicated with each other by an auxiliary hose 110.

One end of this auxiliary hose 110 is supported by the rear wall of the suction chamber 106, and the other end is supported by the upper end of a support 111 that is pierced inside the power nozzle 102 and fitted into the tip of the extension pipe 103. There is. The tip of the extension 1103 is the support 111
It is removably fitted into the ring part 111a at the upper end of the hose 110, and is fitted with the other end of the auxiliary hose 110. The lower end of the support 111 is pivotally supported by a horizontal shaft 112 provided at the rear end of the power nozzle 102 so as to face in the left-right direction. The shaft 112 is attached between the upper body 113 and the lower body 114 of the power nozzle 102, and moving rollers 115° 115 are provided at both ends of the shaft 112 on the outside of the power nozzle 102. It is being 116 is a switch provided inside the power nozzle 102 close to the lower end of the support 111 to switch the rotation direction of the lightning starter 108 that drives the rotating brush 107;
It is configured to switch to one of two diodes 118 and 119 that are interposed in parallel and in opposite directions between 108 and the commercial M source 117. The support tool 1
A hole 1 is provided at the lower end of 11 so that the upper end thereof faces horizontally back and forth when the extension tube 103 is at the angle of normal use (approximately 45°).
20 is formed, and the shaft 112 is fitted into this hole 120 to pivotally support the support 111.
03 in the #1 rearward direction, a relative movement is generated between the shaft 112 and the shaft 112. The actuator 116a of the switch 116 is connected to the support 31.
The switch 116 is in contact with the front end surface of the lower end of the extension tube 103, and is configured so that the switch 116 is switched by moving the lower end of the extension tube 103 back and forth. Specifically, by pushing the power nozzle 102 forward with the lower end of the extension tube 103, the rear end of the hole 120 comes into contact with the shaft 112, and the actuator 11
Press 6a and rotate brush 107 with electric @ 108
The switch 116 is switched so that the power nozzle 102 is rotated in the forward direction, and the extension tube 103 is used to pull the power nozzle 102 backward, thereby removing the front end of the hole 120! 1I1112 to operate the actuator 116a, and together with IIIJII 108, the rotating brush 1
The switch 116 is switched so that 07 rotates in the sliding door direction.

Note that 122 is a power switch provided inside the vacuum cleaner main body 101.

Problems to be Solved by the Invention According to such a conventional vacuum cleaner, the power nozzle 102
When pushed forward, the switch 116 is switched by the support 111, and the rotary brush 107 rotates in the forward direction. The same is true for return.

By reciprocating back and forth in this way, the hair on the carpet is pulled up from the front and back, making the dust collection much more efficient than one that rotates in a fixed direction. However, there is a problem that the relative speed difference between the rotating brush 107 and the carpet is small, so the number of times the rotating brush 107 takes pictures of the carpet per unit area decreases. Machine 1
There is a problem that 08 becomes large.

Means for Solving the Problems In order to solve the above-mentioned problems, the first means of the present invention is to provide an m1 electric vJI in the suction chamber formed in the front part of the floor suction tool.
An agitator is provided which is rotationally driven by Fl and whose agitator comes into contact with the cleaning surface, and a drive roller which is rotationally driven by a second electric motor and whose outer surface comes into contact with the cleaning surface is provided in the rear part of the floor suction tool. and a first and a second first and second
First and second switching means are provided for switching the direction of rotation for each electric motor, and these first and second switching means rotate the agitator in a direction opposite to the moving direction of the floor suction tool and rotate the drive roller. can be rotated in the same direction as the moving direction of the floor suction tool.

In addition, the second means of the present invention provides an agitator which is rotationally driven by the first electric shield and whose agitator comes into contact with the cleaning surface in the suction chamber formed in the front part of the floor suction tool. , a drive roller is provided in the bottom part of the floor suction tool, the drive roller being rotationally driven by a second electric grip and whose outer surface comes into contact with the cleaning surface, and is activated when the floor suction tool is moved forward 111; provided with first and second switching means for switching the rotation direction of the first and second electric motors 111JR,
These first and second switching means rotate the agitator in a direction opposite to the moving direction of the floor suction tool, and rotate the drive roller in the same direction as the moving direction of the floor suction tool. and third switching means for rotating the agitator in the same direction as the moving direction of the floor suction tool.

According to the first means of the present invention, the agitator
The switching means rotates the floor suction tool in the opposite direction to the movement direction, and the second switching means rotates the drive roller in the same direction as the floor suction tool, so cleaning can be performed without impairing operability. The dust collection efficiency can be increased by increasing the number of stroke rotations of the agitator per unit area of the surface.

Furthermore, according to the second means of the present invention, the third switching means causes the agitator to rotate together with the drive roller in the same direction as the moving direction of the floor suction tool, thereby increasing the self-propelling force of the floor suction tool. This is effective when operability is important.

Embodiment Hereinafter, an embodiment of the vacuum cleaner of the present invention will be described based on the drawings.

In FIGS. 1 to 4, 1 has an electric blower 28 inside,
A cleaning main body is provided with a dust collecting section (not shown), and a power nozzle (floor suction tool) 2 is communicated with the vacuum cleaner main body 1 via an extension pipe 3 and a hose 4.

5 is a power cord provided along the extension tube 3;
The vacuum cleaner main body 1 and the power nozzle 2 are electrically connected by connecting with a conducting wire embedded in the hose 4.

Inside the suction chamber 6 on the front side of the power nozzle 2, there is provided a rotating brush (agitator) 7 whose brush (agitator) comes into contact with the cleaning surface. The rotation of the electric motor R8 is transmitted via a belt 9. In addition, a drive roller 1 whose outer surface is in contact with the cleaning surface is provided at the center of the inner rear side of the power nozzle 2.
0 is provided, and the rotation of the second electric current vJ4111 provided on the opposite side to the first electric current 11J fl 8 is transmitted via the belt 12. Incidentally, the tip of the extension pipe 3 and the suction chamber 6 are communicated with each other by an auxiliary hose 13. One end of this auxiliary hose 13 is supported by the rear wall of the suction chamber 6, and the other end is supported by the upper end of a support 14 that is pivotally supported inside the power nozzle 2 and is fitted into the tip of the extension pipe 3. There is. The tip of the extension tube 3 is a support 14
It is removably fitted into the ring portion 14a at the upper end of the auxiliary hose 13, and is fitted with the other end of the auxiliary hose 13. The lower end of the support 14 is pivotally supported by a horizontal shaft 15 provided at the rear end of the power nozzle 2 so as to face in the left-right direction. The shaft 15 is attached between the upper body 16 and the lower body 17 of the power nozzle 2, and moving rollers 18.1g are provided at both ends of the shaft 15 on the outside of the power nozzle 2. It is being 19 is a first electric motor 8 that drives the rotating brush 7;
A first switch (first switching means) provided inside the power nozzle 2 and close to the lower end of the support 14 to switch the rotation direction of the first electric power nozzle 8 and the commercial power source 20. This is for switching connection to either of the diodes 21 and 22 of 2111 which are inserted in parallel and in the opposite direction. By this switching operation of the first switch 19, the rotation direction of the first electric motor 8, that is, the rotating brush 7 is switched.

Further, 23 is a power nozzle 2 for switching the rotation direction of the second electric machine 11 that drives the drive roller 10.
A second switch (second switching means) provided on the opposite side of the first switch 19 inside the supporter 14 and close to the lower end of the support 14 connects the second electric grip 11 and the commercial power supply 20
This is for switching connection to one of two diodes 24 and 25 interposed between the two diodes 24 and 25 in parallel and opposite directions. By this switching operation of the second switch 23, the rotational direction of the second electric VJ machine 11, that is, the drive roller 10 is also switched.

A hole 26 is formed in the small end of the support 14, and the upper end faces horizontally in the front and rear directions when the long tube 3 is at an angle (approximately 45') in normal use. said shaft 1
5 is fitted to form the support 14, and is configured to cause relative movement with the shaft 15 by interfering with the front extending tube 3 in the receiving direction. Said first
．． 1; J, h 2nd switch 19.23 act 1, J
19a, 23a Lt3 Crt contacts the front end surface of the lower end of the support shell 14, and by moving the lower end of the extension tube 3 back and forth, the first Jff and the second switch 19.23
is configured to switch. That is, by pushing the power nozzle 2 forward with the lower end of the extension tube 3, the rear end of the hole 26 comes into contact with the shaft 15, pushing the actuators 19a, 23a, and the rotating brush 7 is moved backward together with the first electric motor 8. The first switch 19 is switched so that the dry switch 19 rotates to
- The second switch 23 is switched so that the roller 10 rotates forward. In addition, by pulling the power nozzle 2 backward with the extension tube 3 and retracting it, the front end of the hole 26 comes into contact with the shaft 15, operating the actuator 19a, and the rotating brush 7 moves forward together with the seventh lightning jammer 8. The first switch 19 is switched so as to rotate in the direction, and the second switch 19 is switched so as to rotate in the direction !
The second switch 23 is switched so that the drive roller 10 rotates backward together with the IJ machine 11.

In FIG. 1, 27 is made of a soft material which is sandwiched between the second body 16 and the fifth body 17 to prevent furniture from being scratched. It's a bumper. Further, in FIG. 4, 29 is a power switch provided inside the vacuum cleaner main body 1.

Therefore, in the above configuration, when the power nozzle 2 is moved forward, the rotating brush 7 rotates backward and the drive roller 10 rotates forward. Also,
When the power nozzle 2 is moved backward, the rotating brush 7 rotates forward and the drive roller 10 rotates backward. In this way, the rotating brush 7 is connected to the power nozzle 2.
Since the rotating brush 7 rotates in the opposite direction to the moving direction of the rotating brush 7, the number of strokes of the rotating brush 7 per unit area of the cleaning surface increases.
High dust collection efficiency can be obtained.

By the way, according to @戊 above, the first train! Since the lJ machine 8 and the second lightning vJ machine 11 are arranged approximately equally on the left and right sides with respect to the center of the suction port, the power nozzle 2
lff1 balance is improved, and operability can be improved. Further, since the drive roller 10 is arranged at the center of the suction port, the power nozzle 2 can be moved smoothly.

Next, another embodiment of the present invention will be described based on FIG.

In this other embodiment, a third switching means that can rotate the rotating brush in the same direction as the moving direction of the power nozzle is added to the configuration of the above-mentioned embodiment. Components that are the same as those in the first embodiment will be given the same reference numerals and their explanations will be omitted, and the configuration will be explained based on electric circuit diagrams.

That is, this device includes a third switch (third switching means) that rotates the rotating brush 7 in the same direction as the moving direction of the power nozzle 2 between the first switch 19 and the diode 2L22 on the two sides. 31 is interposed. The operating section of the third switch 31 is provided, for example, in a hand switch section for operating a 1M removing machine.

Therefore, in the above configuration, when the power nozzle 2 is moved forward or backward with the third switch 31 activated as shown by the dashed line in FIG. Because they rotate in the same direction, the self-propelling force of the power nozzle 2 increases, which reduces the operability, and even if the rotating brush 7 is worn out, the self-propelling force of the power nozzle 2 increases. No decline occurs.

Effects of the Invention As described above, according to the configuration of the present invention, the agitator is rotated in the opposite direction to the moving direction of the floor suction tool, and the drive roller is rotated in the same direction as the floor suction tool. The beam dust efficiency can be increased by increasing the stroke rotation speed of the agitator per medium cleaning surface without impairing operability. By providing the third switching means for rotating the rotary brush in the same direction as the drive roller, the self-propelling power of the floor suction tool can be increased, and it is possible to cope with cases where operability is important.

[Brief explanation of the drawing]

1 to 4 show an electric cleaning group according to an embodiment of the present invention, in which FIG. 1 is a sectional view of the power nozzle, FIG. 2 is a plan view of the power nozzle with the upper body removed;
Fig. 3 is an external perspective view of the vacuum cleaner, Fig. 4 is an electric circuit diagram, Fig. 5 is an electric circuit diagram of a vacuum cleaner according to another embodiment of the present invention, and Figs. 6 to 9 are conventional examples. It shows the 6th
7 is a sectional view of the power nozzle, FIG. 8 is a plan view of the power nozzle with the upper body removed, and FIG. 9 is an electric circuit diagram. 2... Power nozzle, 6... Suction chamber, 7... Rotating brush, 8... First electric VJ machine, 10... Drive roller, 11...-second electric motor, 14... Support, 19
...First switch, 21.22...Diode, 2
3...Second switch, 24.25...Diode,
26...hole, 31...third switch. Agent Yahiro Morimoto Figure 1 2 - Nozzle 6 - Prisoner's room 7 Rotating brush top Live O-ra 23-2 Paper 2 Sweets > 00 Figure 3 Figure 7 Figure 7 10'7 1f4 ff6 // Excitation... i20 Figure q

Claims (1)

[Scope of Claims] 1. An agitator that is rotationally driven by a first electric motor and whose agitator comes into contact with the cleaning surface is provided in the suction chamber formed in the front part of the floor suction tool; A drive roller is provided in the rear part, the drive roller being rotationally driven by a second electric motor and having an outer surface in contact with the cleaning surface, and first and second drive rollers are operated as the floor suction tool moves back and forth.
First and second switching means are provided for switching the rotational direction of the electric motor, and these first and second switching means rotate the agitator in a direction opposite to the moving direction of the floor suction tool, and rotate the drive roller in the direction opposite to the moving direction of the floor suction tool. A vacuum cleaner that rotates in the same direction as the moving direction of the floor suction device. 2. In the suction chamber formed in the front part of the floor suction tool, an agitator is provided which is rotationally driven by a first electric motor and whose stirring body comes into contact with the cleaning surface, and in the rear part of the floor suction tool, a second agitator is provided. first and second drive rollers are provided that are rotationally driven by an electric motor and whose outer surfaces abut against the cleaning surface, and are activated as the floor suction tool moves back and forth;
First and second switching means are provided for switching the rotational direction of the electric motor, and these first and second switching means rotate the agitator in a direction opposite to the moving direction of the floor suction tool, and rotate the drive roller in the direction opposite to the moving direction of the floor suction tool. A vacuum cleaner comprising a third switching means for rotating the agitator in the same direction as the moving direction of the floor suction tool, and for rotating the agitator in the same direction as the moving direction of the floor suction tool.