JPH09299290A - Safety device for power brush type electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an injury and an accident by contact with a rotary brush by stopping the rotary brush of a suction port main body in the case of inverting the suction port main body while using an electric vacuum cleaner. SOLUTION: A control means for controlling power supply is provided between the drive source 4 of the suction port main body 1 and a cord 5. A detection means for detecting the contact with a floor surface of the lower surface of the suction port main body 1 is arranged side by side through a connection means formed only in a direction where the lower surface of the suction port main body 1 is in contact with the floor surface to the control means. Other than the case of lifting and inverting the suction port main body 1, even in the case of erroneously operating the detection means by lifting the suction port main body 1, the connection of the control means and the detection means is not formed, the power supply of the drive source is stopped and the high- speed rotation of the rotary brush 2 is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a power brush type electric vacuum cleaner, and more particularly, to an electric vacuum cleaner having a rotary brush in the suction port body, in which the suction port body is turned over. The present invention relates to a safety device for a power brush type electric vacuum cleaner capable of preventing the injury and the accident caused by the contact between the rotating brush and the body part by stopping the rotation of the rotating brush and rotating the rotating brush in the use state.

[0002]

2. Description of the Related Art In recent years, with the increase in the area where carpets and carpets are used on the floor surface, there is an increasing demand for a dedicated vacuum cleaner for cleaning these carpets and carpets.

However, unlike the flooring floor and the tatami mat, a stronger suction force than the ordinary suction force is required for cleaning a surface such as a carpet or a carpet having hairs.

Therefore, recently, in order to provide a strong cleaning ability, a rotary brush which is rotated by a dedicated motor is attached to the suction port body to scrape out dust in the fluff of carpets, carpets, etc. and strongly suck it. There is also a power-brush type vacuum cleaner, which has recently become popular in many households because it can be cleaned cleanly in a short time.

[0005]

However, this power brush type vacuum cleaner has an excellent cleaning ability, but since the rotating force is strong, the cleaning is caused by the fall of the cleaner body. The rotating brush of the suction port body is not attached to the user's body when the suction port body connected to the is lifted or the suction port body is inverted, or when the suction port body is intentionally inverted during use. There is a risk of causing injury or accidents to users and damage to household goods by touching a part of the hands, hands, fingers, furniture, etc., and safety of manufactured products has been demanded in recent years. In the circumstances, this is the cause of the pursuit of even greater liability issues.

The object of the present invention is to eliminate such a problem. When the suction port body is lifted or inverted during use, the rotary brush of the suction port body stops, and When the lower surface of the suction port body comes into contact with the floor surface after returning to the original position, the rotating brush of the suction port body operates as before, and the safety device of the vacuum cleaner with excellent safety is installed. To provide.

[0007]

A safety device for a power brush type vacuum cleaner according to the present invention has a rotary brush and a drive source for operating the rotary brush which are provided in a suction port body, and which is supplied from an external power source through a cord. In a suction port body of a power brush type vacuum cleaner that sucks dust while rotating a rotating brush with the generated electric power, a control means for controlling power supply is provided between a drive source of the suction port body and a cord, and the control means. In the case where the detecting means for detecting the contact of the lower surface of the suction port body with the floor surface is provided side by side through the connecting means formed only in the direction in which the lower surface of the suction port body contacts the floor surface, and the connecting means is formed. In addition, the control means and the detection means are configured to interlock with each other.

The control means in the safety device for a power brush type vacuum cleaner according to the present invention includes a limit terminal having a limit terminal for connecting a cord and a limit switch for switching ON / OFF of power supply, and one end of the limit. It is characterized in that it is composed of a long-length switching plate that is spring-biased and attached to the original position and is capable of returning to the original position, and that a pressing force is applied to the limit switch at the middle part of the switching plate to supply power. It is a thing.

Further, the detection means in the safety device for a power brush type vacuum cleaner according to the present invention are juxtaposed so as to be able to communicate with the control means, slidably held by a fixing member, and biased in one direction by a spring. It is characterized in that it is composed of a retractable member that can freely retract and retract, and that the retractable member can detect contact with the floor surface of the lower surface of the suction port body.

Further, the connecting means is provided so as to be connectable between the control means and the detecting means, and one side of the connecting means is inserted into a slit hole provided in the frame body, and the long end is provided at an end portion of the inserting side. A tilting plate having an engaging shaft fixed in a perpendicular shape capable of engaging with the dimension switching plate, and a tilting plate fixed to the other end of the tilting plate and projecting orthogonally from a long hole provided in the fixing member so as to interlock with the retractable member. An interlocking shaft provided, a support member axially fixed to the center of the tilting plate, a support rod having a spherical support member tip and a support ball at the base portion for supporting the support member, And a holding member having a spherical recess for holding the support ball in a holding state so that the support rod can be tilted. The control means is provided only when the tip of the support portion of the support rod hangs down and the retractable member is retracted. It is characterized in that it constitutes a connecting means capable of interlocking with the detecting means.

[0011]

The safety device for a power brush type electric vacuum cleaner of the present invention has the following actions by adopting the above-mentioned structure.

That is, the safety device of the power brush type vacuum cleaner detects contact with the floor surface of the lower surface of the suction port body,
Since the rotating brush is rotated or stopped by controlling the power supply between the drive source of the suction port body and the cord, when the suction port body is lifted or inverted during use of the present invention, The detection means detects the contact release between the lower surface of the suction port body and the floor surface, cancels the interlocking with the connection means, and automatically stops the rotation of the rotating brush of the suction port body to cut off the power supply of the control means. Also, when the suction port body is returned to the original position and the detection means brings the lower surface of the suction port body into contact with the floor surface, the contact is detected and the linking means and the control means interlock, Power can be supplied by the control means, and the rotating brush of the suction port body can be automatically activated as before.The rotation of the rotating brush makes contact with a part of the user's body, hand, or finger, resulting in injury or damage. Risk of accident Without is excellent in safety.

Further, since the connecting means of the present invention is formed so that the lower surface of the suction port body is formed only in the direction in which the lower surface of the suction port body comes into contact with the control means, the lower surface of the suction port body is placed on the floor surface. If there is no contact, no power will be supplied,
The safety is outstanding.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a safety device for a power brush type vacuum cleaner according to the present invention will be described in detail with reference to the drawings.

FIG. 3 is an explanatory view showing a state in which the suction port body 1 inside the back side of the power brush type vacuum cleaner and the safety device 6 of the power brush type vacuum cleaner of the present invention are used for this. A rotary brush 2 and a drive source 4 for operating the rotary brush 2 via a belt 3 are installed inside the suction port body 1, and the rotary brush 2 is driven by electric power supplied from an external power source through a cord 5. Dust is sucked while rotating.

Further, the safety device 6 of the power brush type vacuum cleaner of the present invention is provided with a control means 7 for controlling power supply between the drive source 4 of the suction port body 1 and the cord 5 in the frame 61, The control means 7 is provided with a detection means 8 for detecting contact of the lower surface of the suction port body 1 with the floor surface via a connecting means 9 formed only in a direction in which the lower surface of the suction port body 1 contacts the floor surface,
When the connecting means 9 is formed, the controlling means 7 and the detecting means 8
It is designed to work together with.

That is, as shown in FIGS. 1 to 8, the control means 7 is internally fixed to one side of the suction port main body 1, and is connected to the limit terminal 72 connecting the cord 5 and turning on / off the power supply. A limit 71 including a limit switch 73 for switching, a long size switching plate 74 attached to one end of the limit 71 capable of returning to the original position, and the long size switching plate 74.
The long switching plate 7 so that it can be engaged with and apply a pressing force to it.
4 and an engaging shaft 75 arranged orthogonally to each other. The engaging shaft 75 is engaged with the tip end of the switching plate 74, and a pressing force is applied to the limit switch 73 near the middle portion of the switching plate 74. Is provided to supply power, and the long switching plate 7
The power supply can be released while the contact between the limit switch 4 and the limit switch 73 is released.

Further, the long size switching plate 74 is biased by a spring, and when a pressing force is applied to the limit switch 73 and then this is released, the long size switching plate 74 is immediately returned to its original position. ing.

Although the control means 7 is the limit 71 in the drawings as described above, the invention is not limited to this. The control means 7 has a long switching plate 74, and the switching plate 74 or It goes without saying that any kind of member may be used as long as the power can be supplied by contact with a similar member and the power can be released by releasing the contact.

As shown in FIGS. 1 and 2 and FIGS. 5 to 8, the detection means 8 is provided in parallel with the control means 7 so that it can be connected to the long size switching plate 74 of the limit 71 which is the control means 7. The holding member 812 of the fixing member 811 is slidable, and the base side is biased by the spring 83 and is supported by the retractable member 82 supported so as to be retractable in one direction. For example, when the retractable member 82 is retracted when the retractable member 82 comes into contact with the floor surface to apply a pressing force and the contact with the retractable member 82 is released, the retractable member 82 is projected by the restoring force of the spring 83. To return to the original position.

Further, the retractable member 82 is formed in a spherical shape in order to reduce the catch on the floor surface and the lower end portion thereof as much as possible, but the invention is not limited to this, and the catching member on the floor surface is not limited thereto. It goes without saying that the lower end may be a retractable member 82 provided with a sleigh shape or a rotatable roller or the like as long as the number can be reduced.

As shown in FIG. 1, the holding member 812 of the fixing member 811 has a long hole having substantially the same length as the retractable range of the retractable member 82 so that the retaining member 812 can be connected to the connecting means 9. 813 is provided.

The connecting means 9 is provided between the control means 7 and the detecting means 8 so as to be able to connect to each other, and as shown in FIG. 1, the slit hole 62 provided in the frame 61.
This one side is inserted into the tilting plate 91, and an engaging shaft 75 capable of engaging with the long size switching plate 74 is fixed to the tilting plate 91 in an orthogonal shape at the end portion of the insertion side, and is fixed to the other end of the tilting plate 91. An interlocking shaft 92 that projects in an orthogonal manner from an elongated hole 813 provided in a holder 812 of a fixing member 811 so as to interlock with the retractable member 82 and moves in conjunction with the retractable member 82, as shown in FIG.
Also, as shown in FIGS. 5 and 8, a supporting member 93 axially fixed to the center of the tilting plate 91, a distal end of the supporting portion is formed spherical so as to support the supporting member 93, and a supporting ball 94 is provided at the base portion.
1 and a holding member 95 having a spherical recessed portion that holds the support ball 941 in a hugging manner so that the support bar 94 can be tilted.

Therefore, in this connecting means 9, as shown in FIG. 5, the tip of the support portion of the support rod 94 hangs down, and the retractable member 8 is inserted.
When 2 is projected, the connecting means 9 is in a released state, and as shown in FIG. 8, only when the tip of the support portion of the support rod 94 hangs down and the retractable member 82 retracts, the control means 7 and the detection means are detected. That is, the connection means 9 capable of interlocking with each other can be configured.

In using the safety device 6 of the power brush type vacuum cleaner of the present invention configured as described above,
It suffices to use the suction port body 1 so that the back surface of the suction port body 1 is located downward. As shown in FIG. 8, the retractable member 82 is raised when the back surface portion 11 of the suction port body 1 is in contact with the floor surface. And the other side of the tilting plate 91 is pushed up, so that the tip end of the hanging support bar 94 is supported by the support member 9.
As a result, the one end of the tilting plate 91 is pushed down while drawing a circular arc with the tip of the supporting portion of the supporting rod 94 as a fulcrum while being in contact with the engaging rod 75. By inputting the limit switch 73 and operating the drive source 4, the rotary brush 2 inside the suction port body 1 can be rotated.

When the back surface portion 11 of the suction port body 1 is separated from the floor surface, such as when the suction port body 1 is lifted, the retractable member 82 is lowered as shown in FIG. And the tilting plate 91 is also held downward, the contact between the support rod 94 and the supporting member 93 is released, and the connecting means is released, and the engagement shaft 75 and the long switching plate are released. Since it cannot be in contact with 74, the long size switching plate 74 returns to its original position and the limit switch 7
3 is released, and the drive source 4 can be stopped to stop the rotation of the rotating brush 2 inside the suction port body 1.

Further, in the case where the suction port body 1 is inverted due to this, such as when the vacuum cleaner body falls down, or when the suction port body 1 is lifted during use or intentionally inverted. When the suction port body 1 is in a state of being inverted by 180 degrees from the used state, the retractable member 82 returns to the lower side and the tilting plate 91 is also held at the lower side in the same manner as above. The contact between the support rod 94 and the supporting member 93 is released and the connecting means is released, and the engagement shaft 75 and the long size switching plate 74 cannot be brought into contact with each other, so that the long size switching plate 74 is in the original position. At the same time, the limit switch 73 is released, the drive source 4 is stopped, and the rotation of the rotary brush 2 inside the suction port body 1 can also be stopped.

Further, when the suction port body 1 is reversed from the use state to the oblique angle with the back surface portion 11 (specifically, the retractable member 82) of the suction port body 1 being separated from the floor surface, it is shown in the drawing. However, the retractable member 82 is returned to the lower position by the urging force of the spring 83, and the support rod 94 is further retracted.
Since it does not hang down in parallel with 2, the contact between the support rod 94 and the support member 93 is released and the connecting means is released,
The engagement shaft 75 and the long switching plate 74 cannot be brought into contact with each other, the long switching plate 74 returns to its original position, the limit switch 73 is released, the drive source 4 is stopped, and the inside of the suction port body 1 is stopped. The rotation of the rotary brush 2 can also be stopped.

Furthermore, by lifting the suction port body 1,
Even when the projecting retractable member 82 is erroneously pushed, the tilting plate 91 is held downward, the contact between the support rod 94 and the supporting member 93 is released, and the connecting means is released. Therefore, the connecting member 81 and the long switching plate 74 are separated from each other, the drive source 4 is not operated, and the rotary brush 2 inside the suction port body 1 is not erroneously rotated.

[0030]

As described above, the safety device for a power brush type electric vacuum cleaner according to the present invention has a rotary brush and a drive source for operating the rotary brush installed in the suction port main body, and an external power source via a cord. The power brush type electric vacuum cleaner, which sucks dust while rotating the rotating brush by the supplied electric power, is installed inside the suction port body and controls the power supply between the drive source and the cord of the suction port body. The control means is provided, and the control means is provided with a detection means for detecting the contact of the lower surface of the suction port body with the floor surface through the connecting means formed only in the direction in which the lower surface of the suction port body contacts the floor surface. Since the control means and the detection means are interlocked with each other only when the connection means is formed, the control means and the detection means can be detected when the retractable member is projected as in the case where the suction port body is inverted. Solution to the means The rotating brush of the suction port body does not come into contact with a part of the user's body, hand or finger like a conventional power brush type vacuum cleaner. , There is no risk of injury or accident.

Further, since the safety device of the present invention is constructed such that the detecting means and the control means are activated by the contact between the suction port body and the floor surface, the suction port body is also in normal use. The rotation of the rotary brush immediately stops when the tool is separated from the floor surface, and wasteful power supply can be prevented, which is economical and rational.

Furthermore, in the safety device for a power brush type vacuum cleaner of the present invention, the condition that the back surface of the suction port body comes into contact with the floor surface and the retractable member is pushed down, and the hanging support rod protrudes and retracts. Since the connecting means is formed only under the condition that the connecting brush hangs parallel to the member, the connecting means is not formed only by intentionally pushing down the retractable member, and there is no possibility that the rotary brush will rotate. , Safe and economical.

Therefore, the present invention solves various conventional problems, attaches importance to safety, and is economical and rational.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a safety device for a power brush type vacuum cleaner of the present invention.

FIG. 2 is an explanatory view showing an embodiment of a safety device for a power brush type vacuum cleaner of the present invention.

FIG. 3 is an explanatory view showing a state in which the safety device of the power brush type vacuum cleaner of the present invention is installed in the suction port body of the power brush type vacuum cleaner.

FIG. 4 is an explanatory diagram showing an embodiment of a safety device for a power brush type vacuum cleaner according to the present invention.

FIG. 5 is an explanatory view showing an embodiment of a safety device for a power brush type vacuum cleaner of the present invention.

FIG. 6 is an explanatory view showing an embodiment of a safety device for a power brush type vacuum cleaner of the present invention.

FIG. 7 is an explanatory diagram showing an embodiment of a safety device for a power brush type vacuum cleaner according to the present invention.

FIG. 8 is an explanatory view showing an example of a state in which a retractable member of a safety device for a power brush type vacuum cleaner according to the present invention is pushed down.

[Explanation of symbols]

 1 Suction Port Main Body 2 Rotating Brush 3 Belt 4 Drive Source 5 Code 6 Power Brush Type Vacuum Cleaner Safety Device 61 Frame 62 Slit Hole 7 Control Means 71 Limit 72 Limit Terminals 73 Limit Switch 74 Long Dimension Switching Plate 8 Detecting Means 811 Fixing member 812 Holding body 813 Long hole 82 Retracting member 83 Spring 9 Connecting means 91 Tilt plate 92 Interlocking shaft 93 Supporting member 94 Support rod 941 Supporting ball 95 Holding member

Claims (4)

[Claims] 1. A power-brush type electric machine in which a suction brush is provided with a rotary brush and a drive source for operating the rotary brush, and the rotary brush is rotated by electric power supplied from an external power source through a cord to suck dust. In the suction port body of the vacuum cleaner, a control means for controlling power supply is provided between the drive source of the suction port body and the cord, and the control means is formed only in the direction in which the lower surface of the suction port body contacts the floor surface. It is characterized in that detection means for detecting contact with the floor surface of the lower surface of the suction port body are arranged in parallel via the connection means, and when the connection means is formed, the control means and the detection means are configured to interlock with each other. Safety device for power brush type vacuum cleaner. 2. The limit means including a limit terminal for connecting a cord and a limit switch for switching on / off of power supply, and a return position to which a spring is biased and attached to one end of the limit. The safety of the power brush type electric vacuum cleaner according to claim 1, characterized in that it is constituted by a possible long-sized switching plate, and the limit switch is provided with a pressing force at an intermediate portion of the switching plate to supply power. apparatus. 3. The detecting means comprises a retractable retractable member that is juxtaposed so as to be able to communicate with the control means, is slidably held by a fixed member, and is biased in one direction by a spring.
The safety device for a power brush type vacuum cleaner according to claim 1, wherein contact with the floor surface of the lower surface of the suction port body is detected by a retractable member. 4. The connecting means is provided so as to be connectable between the control means and the detecting means, the one side is inserted into a slit hole provided in a frame body, and the long side is provided at an end portion of the inserting side. A tilting plate having an engagement shaft that can be engaged with the switching plate fixed in an orthogonal manner, and a tilting plate that is fixed to the other end of the tilting plate and orthogonally projects from a long hole provided in the fixing member so as to interlock with the retractable member. And the supporting member axially fixed to the center of the tilting plate, the support portion has a spherical tip at the tip of the supporting portion so as to support the supporting member, and a supporting rod having a supporting ball at the base portion, and the supporting member. In order to make the rod tiltable, the holding member is provided with a spherical recess for holding the support ball in a holding state.The control means is provided only when the tip of the support portion of the support rod hangs and the retractable member is retracted. 4. The power according to claim 1, wherein the detecting means constitutes a connecting means capable of interlocking with each other. -Safety device for brush type vacuum cleaner.