JP2005160884A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a usable vacuum cleaner improving dust carrying performance and sustaining a suction force without lowering an air capacity due to clogging of the dust in the vacuum cleaner with a centrifugal separation function. <P>SOLUTION: The top 804 of a spiral shape disposed in a centrifugal separation chamber 113 is positioned above the lower end 805 of a dust passing port. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner.

  FIG. 8 shows a centrifugal separation chamber and a dust collection chamber of a conventional vacuum cleaner. The conventional vacuum cleaner is provided with a centrifuge chamber 113 for centrifuging the sucked dust by the swirling flow of the intake air at the upper part, and provided with a dust dust collecting chamber 114 at the lower part. The height of the spiral portion 801 in which the dust passage opening 301 to the dust collection chamber 114 is arranged at the upper portion of the centrifugal separation chamber 113 is small and the spiral top 804 is the lower end of the dust passage opening. It was located below the part 805.

  This type of vacuum cleaner is disclosed in Patent Document 1, for example.

Japanese Patent Application Laid-Open No. 2003-180584

  As shown in FIG. 8, the conventional vacuum cleaner is provided with a centrifuge chamber 113 for centrifuging the sucked dust by a swirling flow of intake air at the upper part, and a dust collecting chamber 114 at the lower part. The height of the spiral portion 801 in which the dust passage port 301 from the centrifugal separation chamber 113 to the dust collecting chamber 114 is arranged in the centrifugal separation chamber 113 is small, and the spiral top 804 is It was located below the lower end 805 of the dust passage opening. Therefore, when the dust introduced into the centrifugal separation chamber 113 from the dust suction port 802 rotates and rises along the inner wall surface of the centrifugal separation chamber 113 and is transported to the dust collection chamber 114, it passes through the spiral top 804 and the dust passage. Since the distance of the mouth 301 was long, it was difficult to convey particularly heavy dust to the dust passage opening 301. In addition, the suction air flow securing passage 803 may be blocked by dust that cannot be transported and continues to rotate inside the centrifugal separation chamber 113, and the suction force may be reduced. In addition, since the centrifugal separation chamber 113 is made of a transparent material, if the dust continues to rotate without being accumulated in the dust collection chamber 114, the plastic surface is damaged, the transparency is lowered, and the state of the dust is reduced. May be difficult to see.

  As means for solving these problems, the height difference of the spiral portion 801 disposed in the centrifuge chamber 113 is increased, and a heavy-shaped dust is conveyed by providing a spiral top 804 above the lower end 805 of the dust passage opening. It becomes easy to do.

  The object of the present invention has been made based on the above problems, and conveys heavy dust by increasing the height difference of the spiral portion 801 and providing the spiral-shaped top 804 above the lower end 805 of the dust passage opening. It is an object of the present invention to provide an electric vacuum cleaner that facilitates and improves dust collection performance.

  In order to achieve the above object, according to claim 1 of the present invention, a centrifugal separation chamber for centrifuging the sucked dust by a swirling flow of an intake flow is provided in the upper portion, a dust collecting chamber is provided in the lower portion, and each is detachable. In addition, in the vacuum cleaner in which the dust passage opening from the centrifuge chamber to the dust collection chamber is provided at the top of the centrifuge chamber, the top of the spiral shape disposed in the centrifuge chamber is from the lower end of the dust passage opening. Is also provided so as to be located at the top.

  According to a second aspect of the present invention, a dust suction port through which the sucked dust enters the centrifugal separation chamber is disposed behind the centrifugal separation chamber, and the dust passage port from the centrifugal separation chamber to the dust collecting chamber is centrifuged. It is arranged on the side of the chamber, and the spiral shape in the centrifuge chamber is configured to have a spiral of no more than one turn between the dust inlet and the dust passage, and the dust conveyed from the dust inlet does not make one round of the centrifuge chamber It is characterized by having a structure that passes through the dust passage opening and accumulates in the dust collection chamber.

  According to claim 3 of the present invention, the suction air volume securing passage provided on the wall surface of the spiral portion in the centrifuge chamber is provided at a position where the sucked dust cannot be seen from the dust suction port entering the centrifuge chamber. And

  According to the first aspect of the present invention, the centrifugal chamber for centrifuging the sucked dust by the swirling flow of the intake flow is provided in the upper portion, the dust collecting chamber is provided in the lower portion, each is provided detachably, and the centrifugal separation is performed. In a vacuum cleaner in which a dust passage opening from the chamber to the dust collecting chamber is provided in the upper part of the centrifugal separation chamber, the top of the spiral shape disposed in the centrifugal separation chamber is located above the lower end portion of the dust passage opening. By providing in this way, dust can be conveyed more quickly and smoothly, the dust collection performance of dust can be improved, and a convenient vacuum cleaner can be provided.

  According to claim 2 of the present invention, the dust suction port through which the sucked dust enters the centrifugal separation chamber is disposed behind the centrifugal separation chamber, and the dust passage port from the centrifugal separation chamber to the dust collecting chamber is provided. It is arranged on the side of the centrifuge chamber, and the spiral shape in the centrifuge chamber is configured to have a spiral of no more than one turn between the dust inlet and the dust passage, and the dust conveyed from the dust inlet forms the centrifuge chamber 1 The structure that accumulates in the dust collection chamber through the dust passage opening without turning around allows the dust to be transported smoothly without rotating it more than necessary in the centrifuge chamber, and is made of a transparent material. It is possible to provide an easy-to-use electric vacuum cleaner that minimizes scratches in the separation chamber and is easy to see the state of dust.

  According to claim 3 of the present invention, the suction air volume securing passage provided on the wall surface of the spiral portion in the centrifuge chamber is not provided on the dust inlet side where the sucked dust enters the centrifuge chamber. Due to the shape and dust passage provided on the side of the dust passage, the dust transferred from the dust inlet rotates and rises along the wall of the centrifuge chamber without directly adhering to the suction air volume securing passage, and is supplemented by the dust collection chamber. In addition, it is possible to provide an easy-to-use vacuum cleaner that maintains the suction force without blocking the suction air volume securing passage.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2. A dust cup 102 is provided above the vacuum cleaner main body 101, and a suction port 103 is provided below the vacuum cleaner body 101, and the dust cup 102 is connected to the telescopic hose 104.

  The dust cup 102 is made of a transparent material so that the degree of dust accumulation can be seen. When the dust accumulates or when the suction becomes weak, the dust can be removed and cleaned while pushing the push clamp 105. The vacuum cleaner main body is provided with a bypass valve (not shown) that operates when dust accumulates and prevents the electric blower 106 from generating heat.

  A handle 107 used for cleaning is connected to the main body of the vacuum cleaner. By releasing the lock of the handle stopper 108, a rotating part is provided so that it can be folded as shown in FIG. can do. A switch 109 is provided above the handle 107 to control the operation and stop of the cleaner.

  The main body handle 110 used for carrying the cleaner body is provided separately from the cleaner body 101 and is provided so as to be housed in the cleaner body 101.

  FIG. 3 shows the flow of intake and exhaust during operation of the cleaner. The intake air flow from the electric blower 106 is sucked together with dust from the suction port 103, passes through the joint L 111 and the joint U 112, and enters the dust cup 102 via the telescopic hose 104. The centrifugal separation chamber 113 is rotated and separated into dust and air, passes through the dust passage port 301, and accumulates in the dust collection chamber 114. On the other hand, the exhaust flow from the electric blower 106 is branched into the suction outlet 115 and the main body outlet 116. Part of the exhaust flow toward the main body exhaust port 116 enters the cord reel chamber 117 and cools the power cord 118. Further, the exhaust flow toward the inlet exhaust port 115 passes through the joint U112 and the joint L111 and is discharged from the inlet exhaust port 115 into the inlet.

FIG. 4 is a cross-sectional view of the suction port center, and the joint L111 is sandwiched between a lower case 401 and an upper case 402 and is rotatable. An inner case 403 is installed between the lower case 401 and the upper case 402. The exhaust case 404 is formed and the discharge brush 405 is sandwiched and fixed. Reference numeral 406 denotes a rotating brush that sweeps up dust and wipes the cleaning surface. Soft brushes and hard brushes are alternately arranged in grooves formed of metal such as aluminum. In addition, the rotating brush is provided with electrostatic brushes 407 for generating static electricity by rotating contact at both left and right ends, and has a structure for generating static electricity by rotating contact with the inlet contact surface 408. The electrostatic brush 407 strikes the discharge brush 405 installed on the side opposite to the suction contact surface 408 simultaneously with the generation of static electricity, and negative ions are discharged in the air. By providing the discharge brush 405 at both left and right ends of the suction port, negative ions can be scattered over the entire opening of the suction port 103.
In addition, by configuring the suction / exhaust port 115 in the vicinity of the discharge brush 405, the negative ions reach the surface to be cleaned by utilizing the exhaust flow.

  FIG. 5 shows a state in which the dust cup 102 is removed from the cleaner body 101. The dust cup 102 is roughly divided into a centrifuge chamber 113 in the upper part and a dust collecting chamber 114 in the lower part. The centrifuge chamber 113 is provided with a push clamp 105 that is detachable from the cleaner body 101. Further, a dust suction port 802 through which air containing dust flows into the centrifuge chamber 113 is provided at the lower portion of the centrifuge chamber 113, and the dust passage port 301 is provided at the upper end of the centrifuge chamber 113 as described with reference to FIG. Therefore, the swirling flow rolls up from the bottom like a tornado inside the centrifugal separation chamber 113 and accumulates in the dust collecting chamber 114.

  6 and 7 are a front perspective partial sectional view of the dust cup and a rear perspective partial sectional view of the dust cup. The flow of dust from the dust inlet 802 to the dust passage port 301 through the spiral portion 801 is shown. The spiral-shaped top 804 disposed in the centrifuge chamber 113 is provided so as to be positioned above the lower end portion 805 of the dust passage port, and the dust transported along the spiral is the lower end portion of the dust passage port. The structure is such that it can be reliably conveyed to the dust passage port 301 without crashing into the area 805. In addition, the dust suction port 802 is disposed behind the centrifuge chamber 113, the dust passage port 301 is disposed on the side surface of the centrifuge chamber, and the spiral shape is a spiral 1 between the dust suction port 802 and the dust passage port 301. It is configured to have a shape within the winding, and dust is deposited without going around the centrifuge chamber. With this structure, dust can be smoothly conveyed in the centrifuge chamber 113 without being rotated more than necessary. Dust transferred from the dust suction port 802 into the centrifuge chamber 113 vigorously rotates and rises along the walls of the centrifuge chamber 113 and the spiral portion 801 and is supplemented in the dust collection chamber. At this time, the dust from the dust suction port 802 is directly sucked into the suction air volume securing passage 803 so that the dust is sucked into the centrifugal separation chamber 113 through the suction air volume securing passage 803 so that the dust is not blocked. It is provided at a position where it cannot be seen.

  When the vacuum cleaner main body 101, the dust cup 102, and the suction port 103 are configured in this way, the configuration of the dust collection chamber having a centrifugal separation mechanism can be simplified, dust can be effectively centrifuged, and the vacuum cleaner has excellent usability. Can be provided. Further, as described above, the spiral top 804 disposed in the centrifuge chamber 113 is positioned above the lower end 805 of the dust passage port, and a spiral shape is formed between the dust suction port 802 and the dust passage port 301. It is configured within one volume, and dust is deposited without making a round of the centrifuge chamber, thereby improving the dust transportability and maintaining the visibility of the transparent parts. In addition, the suction force is maintained without blocking the suction air volume securing passage 803 by providing the suctioned air volume securing passage 803 at a position where the sucked dust cannot be seen from the dust suction port 802 entering the centrifugal separation chamber 113. An easy-to-use vertical vacuum cleaner can be provided.

It is sectional drawing (1) of the vacuum cleaner concerning embodiment of this invention. It is an external appearance side view of the vacuum cleaner concerning the embodiment of the present invention. It is sectional drawing (2) of the vacuum cleaner concerning embodiment of this invention. It is sectional drawing of the suction opening concerning embodiment of this invention. 1 is an external view of a dust cup according to an embodiment of the present invention. It is a front perspective fragmentary sectional view of the dust cup concerning the embodiment of the present invention. It is a back perspective fragmentary sectional view of the dust cup concerning the embodiment of the present invention. It is a front perspective fragmentary sectional view of the dust cup of the conventional vacuum cleaner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Vacuum cleaner main body, 113 ... Centrifugal separation chamber, 114 ... Dust collection chamber, 301 ... Dust passage port, 801 ... Spiral part, 802 ... Dust intake port, 803 ... Passage securing passage, 804 ... Top of spiral shape, 805 ... Lower end of the dust passage opening.

Claims (3)

Built-in electric blower inside the main body, a centrifuge chamber that centrifuges the sucked dust with a swirling flow of intake air is provided in the upper part, a dust collection chamber is provided in the lower part, each is detachably provided, and the centrifuge chamber In a vacuum cleaner with a dust passage opening at the top of the centrifuge chamber from the dust collection chamber
The electric vacuum cleaner characterized in that the top of the spiral shape disposed in the centrifugal separation chamber is located above the lower end of the dust passage opening. In claim 1,
A dust suction port through which the sucked dust enters the centrifugal separation chamber is disposed behind the centrifugal separation chamber, and a dust passage port from the centrifugal separation chamber to the dust collecting chamber is disposed on the side surface of the centrifugal separation chamber. The spiral shape of the centrifuge chamber is configured to have a spiral of no more than one turn between the dust suction port and the dust passage port, and the dust transported from the dust suction port can be routed to the dust passage port without going around the centrifuge chamber. A vacuum cleaner characterized by having a structure that accumulates in a dust collection chamber. In claim 1 or 2,
A vacuum cleaner characterized in that a suction air volume securing passage provided on a wall surface of a spiral portion in the centrifugal separation chamber is provided at a position where the sucked dust cannot be seen from a dust suction port entering the centrifugal separation chamber.

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