KR19990073726A - Cord reel controller of vacuum cleaner - Google Patents

Abstract

The present invention relates to a cord reel control device for a vacuum cleaner, which can perform a power cord attenuation control operation of a vacuum cleaner at a key input part of a handle side, so that cleaning can be performed conveniently. Braking means for braking that the power cord is wound around the body reel assembly according to the rotation of the reel assembly, a cord reel operation switch installed on the handle and operated by a user, and receiving an operation signal from the cord reel operation switch. And a control unit for outputting a control signal for winding the power cord, and an actuator unit for releasing braking of the braking unit according to the control signal of the control unit.

Description

Cord reel controller of vacuum cleaner

The present invention relates to a cord reel control device for a vacuum cleaner, and in particular, a cord reel control switch for a vacuum cleaner in which a cord reel operation switch of a vacuum cleaner is installed on a key input part of a handle side to perform a cord reel control operation on the handle side. Relates to a device.

In general, as shown in FIG. 1, the vacuum cleaner includes a suction unit 10 which sucks dust or foreign matter by the suction force of air, and dust which is sucked by the suction unit 10. It consists of a communication portion 20 to be smoothly transferred to the dust collecting chamber built in 30, and the main body 30 to collect the dust moved by the communication portion 20.

Here, the suction unit 10 is composed of two first transfer member 11 provided on both sides, and a connecting tube 12 formed integrally with the rear upper end.

In addition, the communicating part 20 includes first and second extension pipes 21 and 22 made of plastic, which are connected to communicate with the hollow part of the connection pipe 12, and the first and second extension pipes 21 and 22. The handle 23 is coupled to, and is coupled to communicate with the handle 23, as well as the hose 24 is made of a natural bending.

Here, the handle 23 is provided with a key input unit 40 which includes a button for controlling the on / off control of the vacuum cleaner and the step of adjusting the suction force of the air and converts the button operation into a corresponding key signal. The hose 24 is provided with a communication cable, not shown, to apply the key signal output from the key input unit 40 to the main body 30 described below.

In addition, the main body 30 has a hose connector 31 to be connected to the end of the hose 24, and there is a dust display portion 33 to display the amount of dust collected. In addition, two second transfer wheels 34 are installed at both sides, and a transport handle 35 is provided to allow an operator to easily transport the work place for movement, and also to supply power. The plug 36 is provided.

Here, an impeller (not shown) is provided inside the main body 30 to generate suction force of air by rotation. In addition, a cord reel switch 37 is installed at the rear of the main body so that the cord of the power plug 36 is wound into the main body, and when the user operates the switch 37, a cord reel driving unit (not shown) is operated. The cord is then wound into a cord reel assembly (not shown) inside the vacuum cleaner.

However, in the conventional vacuum cleaner as described above, since the power cord extended long during cleaning gives a considerable inconvenience to the movement of the cleaner main body at the time of retraction, cleaning is performed to wind the cord around the cord reel assembly of the main body. There was an inconvenience to move to the main body in the stopped state to operate the cord reel switch on the back of the main body.

Accordingly, the present invention has been made to solve the problems described above, by installing the cord reel operation switch of the vacuum cleaner on the key input portion of the handle side to perform the cord reel control control operation on the handle side, which is convenient even during reverse cleaning. It is an object of the present invention to provide a vacuum cleaner cord reel control device which is capable of being moved.

Cord reel control device for a vacuum cleaner according to the present invention for achieving the above object, the braking means for being installed on the upper portion of the reel cover and braking the power cord is wound around the body reel assembly according to the rotation of the body reel assembly, A cord reel operation switch installed in a handle and operated by a user, a control unit for receiving an operation signal from the cord reel operation switch and outputting a control signal for winding the power cord; and the braking means according to the control signal of the control unit. It characterized in that it comprises an actuator means for releasing the braking.

1 is a schematic structural diagram of a conventional vacuum cleaner;

2 is a schematic structural diagram of a vacuum cleaner to which the present invention is applied;

3 is a detailed view of a key input unit of the vacuum cleaner shown in FIG.

4 is a control block diagram of a cord reel controller of a vacuum cleaner according to the present invention;

Figure 5a is a view showing a state in which the actuator is not driven in the cord reel control device of the vacuum cleaner according to the present invention,

5B is a view showing a state in which an actuator is driven in the cord reel control apparatus of the vacuum cleaner according to the present invention;

6 is a control flowchart of a cord reel control apparatus of the vacuum cleaner according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: suction part 12: connector

20: communication part 21, 22: first and second extension pipe

23: handle 24: hose

30: cleaner body 35: carrying handle

36: power plug 37: cord reel switch

40: key input unit 50: operation unit

51: cord reel operation switch 52: the control unit,

53: suction motor drive unit 54: actuator drive unit

55: Actuator 56: Reel Cover

57: brake stopper 58: flammable wire

59: screw 61: body reel assembly

62: brake stopper 63: brake shaft

64: brake shaft support portion 65: terminal mounting reel

66: brake lever 67: power cord

68: reel shaft 100: cord reel assembly

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic appearance structure of the vacuum cleaner to which the present invention is applied, and the same reference numerals are attached to the same parts as the conventional structure, and description thereof will be omitted.

2 to 3 relates to a cord reel control apparatus for a vacuum cleaner according to the present invention, the handle 23 of the figure is provided with a key input unit 40, this key input unit 40 is a suction force adjustment button (example For example, it consists of the strongest, strong, medium, weak, etc.). In addition, the handle 23 is provided with a cord reel operation switch 51 according to the present invention.

4 is a control block diagram of a cord reel controller of a vacuum cleaner according to the present invention. As shown, the cord reel control apparatus of the present invention, the operation unit 50, the cord reel operation switch 51, the control unit 52, the suction motor drive unit 53, the actuator drive unit 54, and the actuator 55 It consists of.

The cord reel operation switch 51 is installed on the handle and is operated by the user. The control unit 52 drives the actuator driver 54 by the operation signal from the cord reel operation switch 51, and then the actuator driver 54 drives the actuator 56.

In addition, the control unit 52 outputs a control signal for adjusting the on / off and rotational speed of the suction motor (not shown) in accordance with the operation signal from the operation unit 50, the suction motor driver 53 is a control unit The input power of the suction motor is controlled according to the control signal applied from the 52 to control the on / off and rotation speed of the motor suction, and the suction motor is driven by the power applied from the suction motor driver 53 to drive the impeller. Will rotate.

Figure 5a is a view showing a state in which the actuator is not driven in the cord reel control apparatus of the vacuum cleaner according to the present invention, Figure 5b is a view showing a state in which the actuator is driven in the cord reel control apparatus of the vacuum cleaner according to the present invention Drawing. The actuator 55 is an actuator driven by an electric solenoid, and the actuator piston 55A is linearly moved by a current applied from the actuator driver 54 according to a control signal from the controller 52.

The cord reel assembly 100 illustrated in FIG. 5A has a reel cover 56 having a predetermined shape and a body assembled with a power cord wound around the front center of the reel cover 56 so as to be rotatable through a screw. The reel assembly 61 and the braking means 57 is installed on the reel cover 56 to control the rotation of the body reel assembly 61.

Here, the reel cover 56 is provided with a power cord connecting portion (not shown) installed in conjunction with the cleaner body, and the braking means 57 is installed.

The brake means 57 is a brake stopper for controlling the rotation restoring force of the spring (not shown) by pressing the circumferential surface of the terminal mounting reel 65 of the reel cover 56 by the operation of the brake lever 66 ( 62, a brake shaft 63 in which the brake stopper 62 is inserted in the longitudinal center and rotatably supported, and a brake shaft support 64 for supporting the brake shaft 63. As shown in FIG.

In addition, an actuator 55 is fastened to the upper portion of the reel cover 56 by a screw 56, and the actuator 55 is provided with an actuator piston 55A that linearly moves by an electromagnetic force of a solenoid (not shown). It is. One end of the flexible wire 58 is connected to the front end of the actuator piston 55A, the other end of the flexible wire 58 is connected to the brake lever 66, and the actuator according to the operation of the actuator 55. When the piston 55A is pulled, the brake lever 66 is also pulled to release the braking means 57.

Next, the operation of the cord reel assembly constructed as described above will be described.

First, when the cleaning worker pulls the power cord 67 wound around the body reel assembly 61 in a state where the cord reel assembly 61 is installed on the cleaner body, the reel shaft 68 is inserted to rotate on the cleaner body 68. At the center of rotation, the body reel assembly 61 is rotated in the release direction of the power cord 67 so that the power cord 67 is released to a predetermined length.

At this time, the reel shaft 68 is provided with a rotational restoring force to rotate in the opposite direction of the winding direction while the spring is caught on the center end, the brake lever 66 and the brake shaft of the braking means (57) The brake stopper 62 installed through the medium presses the circumferential surface of the terminal installation reel 65 constituting the body reel assembly 61 of the reel cover 56 to control the rotational restoring force of the spring. The state in which the cord 67 is drawn out at a predetermined length is maintained.

Then, when the drawn power cord 67 is to be wound, the actuator 55 is operated by driving from the actuator driver 54 to pull the wire 58 to the wire 58. The connected brake lever 66 is pulled so that the brake stopper 57 is detached from close contact with the circumferential surface of the terminal mounting reel 65 of the reel cover 56. Accordingly, the power cord 67 is wound around the body reel assembly 61 by the restoring force of the spring.

6 is an operation flowchart of the vacuum cleaner cord reel control apparatus according to the present invention. In this embodiment, the cord is automatically wound when the cord reel operation switch is operated.

First, the controller 52 determines whether the cord reel operation switch 51 on the handle 23 is operated by the user while the cleaner is operating, that is, whether the cord reel operation switch 51 is extended. When it is determined (step S1), when the cord reel operation switch 51 is not operated, that is, in the off state, the normal cleaner driving operation is performed (step S2).

As a result of the determination in step S1, when the cord reel operation switch 51 is turned on, the actuator 55 drives the actuator driver 54 by driving the actuator driver 54. (Step S3). At this time, the power cord 67 is wound around the cord reel assembly as the braking of the cord reel braking means 57 is released by driving the actuator 55 as shown in FIG. 5B.

Thereafter, the controller 52 determines whether or not the user presses the cord reel operation switch 51 in step S1 (i.e., whether an off signal is input from the cord reel operation switch 51) in step S4. Whether or not].

As a result of the determination in step S4, when the pressing operation is not released, the control of the control unit 52 returns to the step S3 described above and repeats the operation of step S3 or less. On the other hand, when the pressing operation is released, the controller 52 controls the actuator driver 54 to stop the driving of the actuator 55. As a result, the actuator piston 55A protrudes by the driving stop of the actuator 55 as shown in FIG. 5A, so that braking by the cord reel braking means 57 is performed.

Meanwhile, in the above embodiment, the power cord is wound only while the cord reel operation switch 51 is pressed, but the present invention is not limited thereto, and various modifications and changes are made within the scope of the present invention. It can be modified.

As described above, according to the present invention, the cord reel operation switch of the vacuum cleaner is installed on the key input part of the handle side to perform the cord reel control operation on the handle side, so that the power cord can be wound into the cord reel assembly without interruption during cleaning. In addition, the power cord is not caught on the wheel during the backward movement of the cleaner body, it is possible to conveniently move the cleaner body.

Claims (4)

Braking means installed on the reel cover to brake the power cord is wound around the body reel assembly in accordance with the rotation of the body reel assembly, Cord reel operation switch installed in the handle and operated by the user, A control unit which receives an operation signal from the cord reel operation switch and outputs a control signal for winding the power cord; And an actuator means for releasing braking of the braking means in accordance with a control signal of the control unit. 2. The actuator according to claim 1, wherein the actuator means comprises: an actuator driver for receiving a control signal of the controller and outputting a drive signal; an actuator having a piston and linearly moving the piston according to a drive signal from the actuator driver; Cord reel control device for a vacuum cleaner, characterized in that it comprises a connecting member connected to the front end of the piston and the other end is connected to the braking means. 3. The cord reel control device according to claim 2, wherein the actuator is a solenoid. 3. The cord reel control device according to claim 2, wherein the connection member is made of a flexible wire.