JP4399323B2 - Vacuum cleaner and its suction tool - Google Patents

Description

The present invention relates to a vacuum cleaner, and more particularly to a suction tool for a vacuum cleaner equipped with a brush or the like.

  In a general floor moving type vacuum cleaner, a hose and an extension pipe are connected to a vacuum cleaner body equipped with a dust collecting unit and an electric blower, and a suction body for sucking in dust on the floor surface is attached to the tip of the vacuum cleaner body. Yes. Further, auxiliary suction tools are used in places where the suction body cannot be sufficiently cleaned, such as gaps and shelf surfaces. Since this suction tool is inconvenient if it is not immediately available to the user when it is desired to use it, a configuration in which it is attached to another member such as an extension pipe has been proposed.

  However, with this configuration, the suction tool attached to the extension pipe may be difficult to work due to obstruction, or may fall off during work.

  Therefore, a suction tool has been proposed in which a suction tool is connected in series to the proximal side of the extension pipe and the extension pipe is removed to expose brushes and the like, thereby cleaning the shelf surface and the like.

Japanese Patent Laid-Open No. 8-191782 JP 2000-229052 A JP 2002-143055 A

  In the above vacuum cleaner, no consideration was given to using a power head with a built-in motor in the mouthpiece. That is, no means for transmitting electric power is provided in the suction tool.

  Further, there is no means for preventing dust from adhering to the means for transmitting electric power or foreign matter from entering.

  The purpose of the present invention is to use a power head with a built-in motor in the mouthpiece, and prevent dust from adhering to the means for transmitting electric power, or foreign matter from entering, An object of the present invention is to provide a vacuum cleaner suction tool with improved safety and reliability, and a vacuum cleaner using the suction tool.

The above object is that the means not exposed to the outside has a protrusion toward the wall surface of the brush base of the brush member, and the means not exposed to the outside is the brush of the brush member when the brush member is stored. The means of electrical connection is exposed by not contacting the wall surface of the table, and in the state where the brush member is pushed out, the spread of the means that the protrusion does not expose to the outside by contacting the wall surface of the brush table of the brush member is regulated Achieved by covering the means for electrical connection .

  According to the present invention, it is possible to use a power head in which a motor is built in a suction body, and it is possible to improve safety and reliability.

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

  FIG. 1 shows an external perspective view of a suction tool according to this embodiment. In FIG. 1, 101 is a pipe that forms a joint with an extension pipe or the like at both ends thereof, 102 is a brush base R that can slide in the longitudinal direction of the pipe 101, and 103 is a brush that is rotatably fitted to the brush base R102. Tables F and 104 are brushed parts planted on the brush table F103, 105 is a clamp that locks the extension tube and the brush table R102, and 106 is an outer case that covers the outer periphery of the brush table R102 and the brush table F103. 107 are upper covers which cover the upper part of the pipe 101.

  The external view of the vacuum cleaner by a present Example is shown in FIG. In FIG. 2, 201 is a vacuum cleaner body, 202 is a hose body, 203 is a handle grip, 204 is a hand switch, 205 is an extension pipe, 206 is a mouthpiece, and 207 is a connection state of a suction device according to the present invention. . An electric blower that generates a suction force and a dust collecting chamber are provided on the suction side of the electric blower inside the main body casing that forms the outline of the main body of the vacuum cleaner. Although not shown, a motor for rotating the brush is built in the mouthpiece 206, and the hose body 202, handle grip 203 and extension pipe 205 are supplied to the mouthpiece motor. A power line is provided.

FIG. 3 shows an exploded view of the main parts of the suction tool according to this embodiment. In FIG. 3, reference numerals 301 and 302 denote contact pins for receiving power from the handle grip 203 or the extension tube 205, and 303 and 304 denote contact pieces for supplying power to the extension tube 205 or the suction body 206. The contact piece 303 and the contact pin 302 are electrically connected to the contact piece 304 through lead wires 305 and 306. Reference numeral 307 denotes a safety cover, and an arm R308 and an arm L309 that can be pushed open to the left and right are provided on both sides of the safety cover. The upper part of the safety cover 307 covers and conceals the upper parts of the contact piece 303 and the contact piece 304, and the front parts of the arm R308 and the arm L309 prevent the front part of the contact piece 303 and the contact piece 304 from being exposed.

  The longitudinal cross-sectional view of the suction tool by a present Example is shown in FIG. In FIG. 4, 401 is a hole provided in the side surface of the pipe 101, and the protruding member 402 provided integrally with the brush stand R <b> 102 slides within the range of the hole 401.

  The front view of the suction tool by a present Example is shown in FIG. When the extension pipe 205 is inserted from the front of the suction tool 207, the end of the extension pipe comes into contact with the protruding member 402, and the brush base R102, the brush base F103, and the brush section 104 are housed in the outer case 106 by pushing it. . The front view of the suction tool is provided with a hole 501 and a hole 502 into which a contact pin of an extension pipe or a suction body is inserted, and a contact piece 303 and a contact piece 304 are provided behind this hole. However, in a state where the extension pipe and the suction body are removed, the front portions of the arm R308 and the arm L309 are located behind the holes 501 and 502, so that the front portions of the contact piece 303 and the contact piece 304 are not exposed.

  6, 7 and 8 are side views when the outer case of the suction tool according to the present embodiment is made transparent. The clamp 105 is always pushed upward by a clamp spring (not shown).

  When the suction tool 201 is used from the state shown in FIG. 6, by pressing the push button of the clamp 105, the clamp protrusion 601 is simultaneously pushed down, the engagement with the brush stand R <b> 102 is released, and the action of the spring 602 The brush stand R102, the brush stand F103, and the brush portion 104 are pushed forward. At this time, the protruding member 402 stops at the position of the end of the hole 401 of the pipe 101 shown in FIG. 4 to prevent the brush stand F103 from coming off.

  Although cleaning is possible even in the state of FIG. 7, by further rotating the brush stand F103 by 180 degrees, as shown in FIG. 8, the brush stand F103 and the brush portion 104 can have an angle.

Furthermore, as shown in FIG. 9, handling property can be improved by making the front-end | tip of the brush part 901 which contacts a cleaning surface diagonally with respect to the longitudinal direction of a suction tool. At this time, the brush base F103 rotates 180 degrees, so it is desirable to cut it into a mountain shape.
10 and 11 show examples of using the suction tool 201. As shown in FIG. 10, when cleaning the table top or the like, the suction tool 201 is attached to the tip of the hand portion 203. When cleaning a high place, the suction tool 201 is attached to the tip of the extension pipe 205 as shown in FIG. Further, the top surface of the air conditioner or curtain rail can be cleaned by rotating the brush stand F103 by 180 degrees. When the cleaning is completed, the brush stand F103 is returned to the original position, and the suction body 206 is inserted.
Next, the operation of the safety cover 307 will be described with reference to FIGS. 12 and 13 are top views with a part cut away for the sake of explanation. As shown in FIG. 12, in a state where the extension tube 205 is inserted, the contact pins 1201 and 1202 of the extension tube 205 push the arm R308 and arm L309 of the safety cover 307 open to the left and right to contact the contact piece 303 and the contact piece 304. To do. When the pipe 101 is connected to the handle grip 203 at this time, the extension pipe 205 and the handle grip 203 are also electrically connected by the contact pins 301 and 302, the lead wires 305 and 306, and the contact pieces 303 and 304. Then, as shown in FIG. 13, when the extension tube 205 is removed to clean the surface to be cleaned using the suction tool 207, the arm R308 and the arm L309 are automatically elastically attached to the front surfaces of the contact pieces 303 and 304. Return to position. As a result, the holes 501 and 502 are closed, and the contact pieces 303 and 304 are not exposed.
As described above, according to this embodiment, it is possible to prevent the contact piece from being exposed in a small space and with a small number of parts. This reduces the risk that the user will accidentally touch the contact piece, thus improving safety. Further, since it is possible to prevent dust from entering the contact piece and causing an electrical contact failure, reliability is improved.

FIG. 14 shows a top view of a safety cover 1401 according to the second embodiment. In this embodiment, protrusions 1404 and 1405 are formed on both sides of the arm R1402 and the arm L1403 of the safety cover 1401. The protrusions 1404 and 1405 do not come into contact when the brush base R102 and the brush base F103 are stored in the outer case 106, but as shown in FIG. When the brush base F103 is pushed forward, the protrusions 1404 and 1405 come into contact with the wall surfaces 1501 and 1502 of the brush base R102. For this reason, the lateral expansion of the arm R1402 and the arm L1403 is restricted, and exposure of the contact piece can be prevented more reliably. Further, even if the elastic force of the arm R1402 and the arm L1403 decreases with time and the force to return to the position of the front surface of the contact piece is weakened, it can be surely returned to the position of the front surface of the contact piece.

The operation of the safety cover according to the third embodiment will be described with reference to FIGS. In FIG. 16, reference numerals 1601 to 1604 denote covers having a hinge structure. As shown in FIG. 16, in a state where the extension pipe 205 is inserted, the contact pins 1201 and 1202 of the extension pipe 205 push the hinge structure of the safety covers 1501 to 1504 left and right to contact the contact piece 303 and the contact piece 304. . Then, as shown in FIG. 17, when the extension tube 205 is removed in order to clean the surface to be cleaned using the suction tool 207, the safety covers 1601 to 1604 are automatically elastically attached to the front surfaces of the contact pieces 303 and 304. Return to position. As a result, the holes 501 and 502 are closed, and the contact pieces 303 and 304 are not exposed. Since the risk of the user touching the contact piece by mistake is reduced, safety is improved. Further, since it is possible to prevent dust from entering the contact piece and causing an electrical contact failure, reliability is improved.

The operation of the safety cover according to the fourth embodiment will be described with reference to FIG. In this embodiment, the safety cover according to the present invention is applied to the extension pipe 1801. In FIG. 18, 1803 and 1804 are contact pieces for supplying electric power to the mouthpiece 206, 1802 is a safety cover, and an arm R1805 and an arm L1806 that can be pushed open to the left and right are provided on both sides thereof. . The front portions of the arm R1805 and the arm 1806 prevent the front portions of the contact piece 1803 and the contact piece 1804 from being exposed. Thereby, the safety and reliability of the extension pipe 1801 are improved. Similarly, the handle grip 203 can be applied to the present invention.

It is an external appearance perspective view of the suction tool which concerns on the Example of this invention. It is an external view of the vacuum cleaner which concerns on the Example of this invention. It is an exploded view of the suction tool which concerns on the Example of this invention. It is sectional drawing of the suction tool which concerns on the Example of this invention. It is a front view of the suction tool which concerns on the Example of this invention. It is a side view of the suction tool which concerns on the Example of this invention. It is a side view of the suction tool which concerns on the Example of this invention. It is a side view of the suction tool which concerns on the Example of this invention. It is a side view of the suction tool which concerns on the Example of this invention. It is the figure which showed the usage example of the suction tool which concerns on the Example of this invention. It is the figure which showed the usage example of the suction tool which concerns on the Example of this invention. It is a top view of the suction tool which concerns on the Example of this invention. It is a top view of the suction tool which concerns on the Example of this invention. It is a top view of the suction tool which concerns on the Example of this invention. It is a top view of the suction tool which concerns on the Example of this invention. It is a top view of the suction tool which concerns on the Example of this invention. It is a top view of the suction tool which concerns on the Example of this invention. It is a top view of the extension pipe concerning the example of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Pipe, 102 ... Brush stand R, 103 ... Brush stand F, 104 ... Brush part, 105 ... Clamp, 106 ... Case, 107 ... Upper cover, 303, 304 ... Contact piece, 307 ... Safety cover

Claims (5)

A pipe member; a brush member that is slidable along the axial direction of the pipe member; and is disposed on an outer periphery of the pipe member; a storage cover that covers the brush member; and the brush member is attached to the pipe member. An axially pushing spring and a hole formed along the axial direction of the pipe member are provided so as to protrude from the inner peripheral surface of the pipe member, and slide in the range of the hole in conjunction with the brush member. A projection member, a locking portion disposed in the housing cover and locked to an extension pipe and a suction body on an axially outer side of the pipe member, and a clamp having a push button on the other end side. The member is inserted into the pipe member from the outside in the axial direction of the pipe member to contact the end of the extension pipe or the suction body to store the brush member in the storage cover. , The clamp is the extension tube or mouthpiece In suction tool of the vacuum cleaner to maintain state for accommodating the brush member to the housing cover connected,
Means for electrically connecting to an extension pipe or a suction body connected to the front side of the pipe member;
Means for preventing the electrically connecting means from being exposed to the outside in the state where the brush member is pushed out;
The brush member is stored in the storage cover when the extension pipe and the suction body are connected to the suction tool, and is removed from the storage cover when the extension pipe and the suction body are removed from the suction tool. Extruded,
Means not exposed to the external, has a projection towards the brush base of the wall surface of the brush member, the means not exposed to the external, in the state in which the brush member is housed, projecting Kiga brush of the brush member The means for electrically connecting is exposed by not contacting the wall surface of the base , and in the state where the brush member is pushed out , the protrusion is not exposed to the outside by contacting the wall surface of the brush base of the brush member A suction tool for a vacuum cleaner characterized in that the spread of the means is restricted to cover the means for electrical connection. In claim 1,
The means not exposed to the outside includes an arm having a shape extending in the pushing direction of the brush member, and one end of which is bent to cover the means for electrical connection,
The suction tool of the vacuum cleaner , wherein the protrusion is formed outside a bent portion of the arm .   2. The vacuum cleaner suction tool according to claim 1, wherein the means not exposed to the outside covers the means for electrical connection by utilizing the bending of an elastic body. An electric blower that generates a suction force, a vacuum cleaner body provided with a dust collecting chamber on the suction side of the electric blower, a hose body, a handle grip, a hand switch, an extension pipe, and a suction body, A motor for rotating a brush is built in the mouthpiece, and the hose body, the handle grip, and the extension pipe are provided with a power supply line for supplying the motor of the mouthpiece. In the machine
A suction tool connectable between the handle grip and the extension pipe or between the extension pipe and the mouthpiece;
The suction tool includes a pipe member, a brush member disposed on an outer periphery of one end of the pipe member, the handle grip and the extension pipe or means for electrically connecting to the extension pipe and the suction body, Means for exposing the electrically connecting means located on the brush member side to the outside;
The brush member is housed in the suction tool in a state where the extension pipe or the suction body is connected to the brush member side of the suction tool, and the extension pipe or the suction port from the brush member side of the suction tool. When the body is removed, it is pushed out of the suction tool,
The means not exposed to the outside has a protrusion toward the wall surface of the brush member.
In the state where the brush member is housed, the means not exposed to the outside exposes the means for electrical connection when the protrusion does not contact the wall surface of the brush base of the brush member, and the brush member is pushed out. In this state, the projection is in contact with the wall surface of the brush base of the brush member, so that the spread of the means not exposed to the outside is restricted and covers the means for electrical connection. . In claim 4,
The means not exposed to the outside includes an arm having a shape extending in the pushing direction of the brush member, and one end of which is bent to cover the means for electrical connection, The vacuum cleaner according to claim 1, wherein the protrusion is formed outside a bent portion of the arm.

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