JP4444164B2 - Vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner including a vacuum cleaner body having a dust collecting portion and an electric blower that applies a negative pressure to collect dust in the dust collecting portion.

  Conventionally, a canister type vacuum cleaner and an upright type vacuum cleaner are known.

  The canister type vacuum cleaner has a dust collecting chamber and a vacuum cleaner main body having an electric blower that makes the dust collecting chamber have a negative pressure, and a dust collecting hose having one end connected to the vacuum cleaner main body and communicating with the dust collecting chamber. And a hand operating pipe connected to the other end of the dust collecting hose, an extension pipe connected to the hand operating pipe, and a suction port connected to the tip of the extension pipe (Patent Document) 1).

  As shown in FIG. 13, the electric vacuum cleaner stands up with the rear portion of the vacuum cleaner body 2 connected to the dust collecting hose 1 at the time of storage, and the locking portion of the extension pipe 4 connected to the suction port body 3 (see FIG. 13). The extension pipe 4 can be stood and stored by engaging a not-shown) with an engaging part (not shown) at the bottom of the cleaner body 2.

  As shown in FIG. 14, the upright type vacuum cleaner has a cleaner body 12 attached to a handle 11 attached to the rear portion of the suction port body 10, a dust collecting container 13 attached to the cleaner body 12, and a vacuum cleaner. The main body 12 is provided with an electric blower (not shown) (see Patent Document 2).

This upright type vacuum cleaner is housed in the state shown in FIG.
JP-A-9-173258 JP 2004-230031 A

  By the way, since the canister type vacuum cleaner performs cleaning by moving the suction port body 3 back and forth, the weight of the cleaner body 2 is not added to the suction port body 2, and thus a large electric blower is installed. It can be used, and dust can be sucked with high output.

  However, when stored, the dust collecting hose 1 becomes an obstacle as shown in FIG. Further, in order to use the vacuum cleaner from the housed state, the extension pipe 4 must be removed from the vacuum cleaner body 2 and the standing vacuum cleaner body 2 must be laid down sideways.

  Further, in the upright type vacuum cleaner, the housed state is compact because there is no long dust collecting hose and the like, and the housed state can be shifted to the used state as it is.

  However, since the cleaner body 12 is attached to the handle 11, the weight of the cleaner body 12 is added to the suction mouth body 10 when the suction mouth body 10 is moved back and forth. For this reason, when a large-sized electric blower is mounted, it becomes unusable.

  An object of the present invention is to provide a vacuum cleaner that can be compactly stored and can be shifted to a used state while being stored, and in which the weight of the vacuum cleaner body does not add to the suction port. It is in.

In order to achieve the above-mentioned object, the invention of claim 1 includes a suction port body, an extension pipe connected to the suction port body, a hand operating body communicated with the extension pipe, a dust collection portion, and the dust collection section. a cleaner body having an electric blower for applying a negative pressure for causing the dust collecting dust in part, Bei example and connected pivotally to the extension tube to one end of the hand operation body, the cleaner body A traveling wheel is provided at the lower part of the vacuum cleaner, and a connecting pipe that extends upward and communicates with the dust collecting part is provided at the upper part of the cleaner body. The upper end of the connecting pipe is rotated to the other end side of the hand operating body. The connecting pipe is connected to the extension pipe through the hand operating body, and the extension pipe and the connecting pipe are rotated by substantially the same angle in opposite directions with respect to the hand operating portion. It is characterized by that.

  According to the present invention, the vacuum cleaner can be stored in a compact manner and can be shifted to the use state while being stored, and the weight of the vacuum cleaner body is not added to the suction port body. Even if the electric blower is installed, it is easy to use.

  Hereinafter, the Example which is embodiment of the vacuum cleaner concerning this invention is described based on drawing.

[First embodiment]
The vacuum cleaner 20 shown in FIGS. 1 and 2 includes a vacuum cleaner main body 21, a connection pipe 22 provided on the upper part of the vacuum cleaner main body 21, and a hand operation in which the connection pipe 22 is detachably connected to the other end side. A body (hand operation tube) 30, an extension tube 40 that is detachably connected to one end of the hand operation body 30, and a suction port body 50 that is detachably connected to a distal end portion of the extension tube 40. ing.

  The vacuum cleaner body 21 includes a dust collection chamber (dust collection section) 23 formed in the upper portion, an electric blower 24 that makes the dust collection chamber 23 a negative pressure, and a dust collection filter that is detachably attached to the dust collection chamber 23. (Paper pack filter) 25 and a cord reel (not shown) around which a power cord is wound. The electric blower 24 and the cord reel are disposed below the dust collection chamber 23. The connection pipe 22 and the dust collection chamber 23 communicate with each other, and the connection pipe 22 communicates with the extension pipe 40 via the hand operating body 30.

  Wheels 26 for traveling are attached to both sides of the lower part of the vacuum cleaner main body 21, and can be moved in the front-rear direction in the illustrated state.

  A pair of auxiliary wheels 60, 60 are attached to the lower part of the front surface of the cleaner body 21 as shown in FIG.

  The auxiliary wheel 60 includes an arm 61, a shaft 62 formed at one end of the arm 61 and extending in a direction orthogonal to the arm 61, and a pair of auxiliary wheels rotatably provided at the other end of the arm 61. 63.

  Further, a pair of recesses 21A are formed at a predetermined interval in the lower part of the front surface of the cleaner body 21, and bearings 21a (only one of them is shown in FIG. 3) and locking holes 21b are formed on both side surfaces of the recesses 21A. (Only one of them is shown in FIG. 3).

  A cover 70 having a U-shaped cross section is attached to each recess 21A, and an arcuate recess 72 is formed in the lower part of both side wall portions 71 of the cover 70. By this recess 72 and the bearing portion 21a, A shaft portion 62 of the auxiliary wheel 60 is rotatably held. Further, support walls 73 (only one of which is shown in FIG. 3) extending downward (in FIG. 3) are formed on both side walls 71 of the cover 70, and locking claws projecting outward at the lower portion of the support 73. 73A (only one of them is shown in FIG. 3) is provided, and the engaging claw 73 is engaged with the engaging hole 21b of the recess 21A of the cleaner body 21, and the cover 70 is attached to the cleaner body 21 by this engagement. It is attached to the recess 21A.

  Further, the upper wall portion 74 (in FIG. 3) of the cover 70 restricts the arm 61 of the auxiliary wheel 60 from rotating more than a predetermined angle around the shaft portion 62.

  As shown in FIGS. 4 and 5, the hand operating body 30 is provided with an operating tube portion 31 and a first joint rotatably attached to the distal end side (left side: one end side in FIG. 4) of the operating tube portion 31. It has a pipe 32, a second joint pipe 33 that is rotatably attached to the rear side (the other end side) of the operation pipe portion 31, a handle portion 34 formed on the operation pipe portion 31, and the like. The handle portion 34 is provided with an operation switch (not shown).

  The operation tube portion 31 is formed of a pair of half cases 131A and 131B divided into two.

  Holes 31a and 31b are formed on the left and right sides of the bottom wall portion 31A of the operation tube portion 31, and annular seal members 35 and 36 are attached to the edges of the holes 31a and 31b. The annular seal members 35 and 36 have annular lip seal portions 35A and 36A.

  In addition, four axes J1 to J4 are formed along the left-right direction on the inner side of the side wall 31B of the half case 131A. In addition, on the inner side of the side wall portion 31C of the half case 131B, shafts K1 and K4 are formed at positions facing the shafts J1 and J4.

  A pair of opposed protruding wall portions 32Ta and 32Tb extending upward are formed on the upper portion of the first joining pipe 32. A gear G1 is fixed to the protruding wall portion 32Ta, and a shaft hole H1 is formed in the protruding wall portion 32Tb. Is formed.

  A pair of opposed protruding wall portions 33Ta and 33Tb extending upward are formed on the upper portion of the second joining pipe 33, a gear G4 is fixed to the protruding wall portion 33Ta, and a shaft hole H2 is formed in the protruding wall portion 33Tb. Is formed.

  Then, the upper part of the first joint pipe 32 is inserted into the annular seal member 35, and the shaft J1 of the side wall part 31B of the operation pipe part 31 is rotatably inserted into the gear hole G1a of the gear G1. The shaft K1 of the side wall portion 31C of the operation tube portion 31 is rotatably inserted into the shaft hole H1 of the protruding wall portion 32Tb of the joint tube 32, and the first joint tube 32 is longitudinally centered about the axes J1 and K1. It is freely rotatable in the left-right direction in FIG. Further, the lip seal portion 35A of the annular seal member 35 is in close contact with or fixed to the upper portion of the first joint tube 32, and the airtightness in the operation tube portion 31 is maintained regardless of the rotation of the first joint tube 32. It is like that.

  Further, the upper part of the second joining pipe 33 is inserted into the annular seal member 36, and the shaft J4 of the side wall 31B of the half case 131A is rotatably inserted into the gear hole G4a of the gear G4. The shaft K4 of the side wall portion 31C of the half case 131B is rotatably inserted into the shaft hole H2 of the protruding wall portion 33Tb of the joint tube 33, and the second joint tube 33 is longitudinally centered about the axes J2 and K4. It is freely rotatable in the left-right direction in FIG. Further, the lip seal portion 36A of the annular seal member 36 is in close contact with or fixed to the upper portion of the second joint tube 33, and the airtightness in the operation tube portion 31 is maintained regardless of the rotation of the second joint tube 33. It is like that.

Gears G2 and G3 are rotatably mounted on the shafts J2 and J3 of the side wall portion 31B of the half case 131A, and the gears G1 to G4 are meshed with each other, and the first and second joint pipes. 32 and 33 are rotated by the same angle in opposite directions.
[Operation]
Next, operation | movement of the vacuum cleaner comprised as mentioned above is demonstrated.

  First, the electric blower 24 is driven by operating an operation switch (not shown) of the handle portion 34 of the hand operation body 30. By this driving, the dust collecting chamber 23 becomes negative pressure, and this negative pressure is sucked into the suction port via the connection pipe 22, the second joint pipe 33, the operation pipe portion 31 of the hand operating body 30, the first joint pipe 32 and the extension pipe 40. Acting on a suction chamber (not shown) of the body 50, dust and air on the surface to be cleaned are sucked from the suction opening on the bottom surface of the suction chamber of the suction port body 50, and the extension pipe 40, the first joint pipe 32, The air is sucked into the dust collection chamber 23 of the cleaner body 21 through the operation tube portion 31, the second joint tube 33 and the connection tube 22 of the hand operation body 30.

  The dust sucked into the dust collecting chamber 23 is collected by a dust collecting filter 25 mounted in the dust collecting chamber 23, and the air is sucked into the electric blower 24 and then exhausted from an exhaust hole (not shown) of the cleaner body 21. To go.

  In order to advance the suction port body 50, the handle portion 34 of the hand operation body 30 is operated to slightly raise the front side of the hand operation body 30, and the hand operation body 30 is moved forward. 33 rotates counterclockwise with respect to the hand operating body 30, and the first joint pipe 32 is rotated clockwise by the gears G4 to G1 by this rotation.

  That is, the extension pipe 40 and the connection pipe 22 connected to the first and second joining pipes 32 and 33 are opened in a letter C shape. Then, if the handle portion 34 is operated to move it forward so as to push down the hand operating body 30 downward, as shown in FIG. 6, the extension tube 40 and the connecting tube 22 further open in a C shape. The suction port body 50 moves forward.

  As shown in FIG. 6, the connecting pipe 22 is tilted together with the cleaner body 21, and with the tilt of the cleaner body 21, the arm 61 of the auxiliary wheel 60 starts from the front surface of the cleaner body 21 around the shaft portion 72. The auxiliary wheel 63 is rotated by its own weight so as to leave. When the cleaner body 21 is inclined at a predetermined angle with respect to the surface to be cleaned, the arm 61 of the auxiliary wheel 60 hits the upper wall portion 74 of the cover 70 so that the cleaner body 21 is not inclined more than a predetermined angle. The auxiliary wheel 60 prevents the vacuum cleaner body 21 from falling.

  In order to retract the advanced suction port body 50, the handle portion 34 of the hand operation body 30 is operated to move the hand operation body 30 rearward (hand side). Due to the rearward movement of the hand operation body 30, the second joint pipe 33 is rotated clockwise with respect to the hand operation body 30 in the reverse direction to the above, and the first joint pipe 32 is rotated by the gears G4 to G1 by this rotation. Turns clockwise.

  That is, the extension pipe 40 and the connection pipe 22 connected to the first and second joining pipes 32 and 33 move from the state shown in FIG. 6 to the state shown in FIG. 1, and the suction port body 50 is moved backward. Will be.

  In this way, by moving the hand operating body 30 back and forth, the suction port body 50 moves back and forth and sucks the dust on the surface to be cleaned.

  Since the weight of the cleaner body 21 is not added to the suction port body 50 when the suction port body 50 is moved back and forth, the use of the suction port body 50 can be improved even if the large electric blower 24 is mounted. It will be good.

  The vacuum cleaner 20 may be stored in the state shown in FIG. 1 and placed in a predetermined storage location such as a press-in. In this state, since the extension pipe 40 and the connection pipe 22 are rotated in the opposite directions via the gears G1 to G4, the cleaner body 21 and the extension pipe 40 fall down in the left-right direction. It ’s stable. Further, since there is no hose, the hose can be stored compactly without obstructing the conventional hose.

Moreover, when using the vacuum cleaner 20, it is sufficient to move it in the state shown in FIG. That is, it is possible to shift to a use state while being stored.
[Second Embodiment]
FIG. 7 shows a vacuum cleaner 120 of the second embodiment. This vacuum cleaner 120 houses a dust collecting hose 121 in a connecting pipe 122, and a lower end (one end) 121A of the dust collecting hose 121 is connected to a connection port Sa of the cleaner main body 21 as shown in FIG. The dust collection hose 121 and the dust collection chamber 23 are communicated with each other.

  Further, the upper end portion (the other end) 121 </ b> B of the dust collection hose 121 is connected to the air duct 201 of the second joining pipe 200.

  As shown in FIG. 9, the second joining pipe 200 has an air duct 201 and a joining case 202. A gear G4 (see FIG. 8) is fixed to the upper part of the air duct 201, and a shaft hole H2 is formed in the upper part of the air duct 201 as shown in FIG. J4 (see FIG. 5) is inserted, the axis K4 is inserted into the shaft hole H2, and the air duct 201 is rotatable about the axes J4 and K4.

  The dust collecting hose 121 communicates with the operation tube portion 31 through the air duct 201.

  The joint case 202 has a large-diameter case part 202A that covers the upper end part 121B of the dust collecting hose 121 connected to the air duct pipe 201, and a small-diameter joint part 202B that is joined to the connection pipe 122.

  When performing normal cleaning, the dust collecting hose 121 is housed in the connecting pipe 122 and the joint 202B of the joining case 202 is joined to the connecting pipe 122 and used in the same manner as in the first embodiment. To do.

When cleaning a high place, the extension pipe 40 is removed from the first joint pipe 32 of the hand operating body 30 as shown in FIG. 10, and the round brush 250 is connected to the first joint pipe 32. Then, the joining portion 202B of the joining case 202 is removed from the connecting pipe 122, the dust collecting hose 121 is pulled out from the connecting pipe 122, the hand operating body 30 is operated, and the high portion is cleaned by the round brush 250.
[Third embodiment]
11 and 12 show a third embodiment. 11 and 12, reference numeral 140 denotes an extension pipe connected to the first joint pipe 32 of the hand operating body 30 (see FIG. 1), and a brush holder 141 is provided at the tip of the extension pipe 140. The brush holder 141 is provided with a bristle brush 142 and a connection pipe (not shown) communicating with the extension pipe 140, and the rotary pipe 151 of the suction port body 150 is connected to the connection pipe. .

  When the rotary tube 151 is rotated forward by a predetermined angle with respect to the suction port body 150 (when it is substantially perpendicular to the floor surface), the lock means (not shown) is unlocked and the connecting pipe of the brush holder 141 is connected. It can be removed from the rotary tube 151. Further, when the connecting pipe of the brush holder 141 is connected to the rotating pipe 151 and the rotating pipe 151 is tilted rearward, the rotating pipe 151 is fixed to the connecting pipe by the locking means.

  According to the third embodiment, the extension tube 140 can be removed from the suction port body 150 without touching the suction port body 150, and the bristle brush 142 of the brush holder 141 provided at the tip of the extension tube 140 is used. Can be cleaned. Further, the suction port body 150 can be connected to the extension pipe 140 without attaching a hand.

It is the side view which showed the external appearance of the electric vacuum cleaner which concerns on this invention. It is explanatory drawing which decomposed | disassembled the vacuum cleaner shown in FIG. 1 according to main parts. It is the perspective view which showed the front side of the cleaner body. It is sectional drawing which showed the structure of the hand operation body. It is the disassembled perspective view which showed the structure of the hand operation body. It is explanatory drawing which showed the use condition of the vacuum cleaner. It is explanatory drawing which showed the vacuum cleaner of 2nd Example. It is the fragmentary sectional view which showed the connection pipe of the vacuum cleaner of 2nd Example, and the structure of the 2nd junction pipe. It is sectional drawing which showed the structure of the hand operation body of 2nd Example. It is explanatory drawing which showed the other usage example of 2nd Example. It is the perspective view which showed the suction inlet of 3rd Example. It is the perspective view which showed the state which removed the extension pipe | tube from the suction inlet body. It is explanatory drawing which showed the accommodation state of the conventional vacuum cleaner. It is explanatory drawing which showed the conventional upright type vacuum cleaner.

Explanation of symbols

21 Vacuum Cleaner Body 22 Connection Pipe 26 Wheel 30 Hand Control Body 40 Extension Pipe 50 Suction Port Body

Claims (4)

A suction port,
An extension pipe connected to the suction port body;
A hand control body communicated with the extension pipe;
E Bei a cleaner body having an electric blower for applying a negative pressure for causing the dust collecting dust in the dust collection unit and the dust collecting portion,
The extension tube is pivotally connected to one end of the hand operating body,
Provide a traveling wheel at the bottom of the vacuum cleaner body,
The upper part of the vacuum cleaner body is provided with a connecting pipe that extends upward and communicates with the dust collecting part.
The upper end of the connection pipe is connected to the other end side of the hand operation body so as to be rotatable, and the connection pipe is communicated with the extension pipe through the hand operation body ,
The vacuum cleaner, wherein the extension pipe and the connection pipe are rotated by substantially the same angle in opposite directions with respect to the hand operating portion . A suction port,
An extension pipe connected to the suction port body;
A hand control body communicated with the extension pipe;
E Bei a cleaner body having an electric blower for applying a negative pressure for causing the dust collecting dust in the dust collection unit and the dust collecting portion,
The extension tube is pivotally connected to one end of the hand operating body,
Provide a traveling wheel at the bottom of the vacuum cleaner body,
A connecting pipe extending upward is provided at the top of the vacuum cleaner body,
The upper end of this connection pipe is pivotally connected to the other end of the hand operating body,
The dust collection hose is retractably housed in the connection pipe, one end of the dust collection hose is connected to the cleaner body, and the other end of the dust collection hose is connected to the hand operation body. The body and the dust collecting part are communicated with each other through the dust collecting hose ;
The electric vacuum cleaner, wherein the extension pipe and the connection pipe are rotated by substantially the same angle in opposite directions with respect to the hand operating portion . 3. The gear according to claim 1, further comprising a plurality of gears meshed with each other so as to rotate the extension pipe and the connection pipe by substantially the same angle in directions opposite to each other with respect to the hand operation section. Electric vacuum cleaner. The vacuum cleaner according to any one of claims 1 to 3, wherein an auxiliary wheel for preventing the fall is provided in the vacuum cleaner body.

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