JP2642659B2 - Electric vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner provided with a dust indicator.

(B) Conventional technology For example, in Japanese Utility Model Publication No. Sho 61-1881, a dust indicator for detecting a negative pressure in a dust collection chamber and reporting the amount of dust collection is provided in the cleaner body, and communicates with the air opening of the dust indicator. There is shown a vacuum cleaner provided with a suction hole for an indicator on the upper surface of the main body case.

However, in the above-mentioned prior art, there is a drawback that the indicator intake hole provided on the upper surface of the cleaner body case is unsightly, and fine dust enters from the intake hole and enters the dust indicator, so that the dust indicator does not operate correctly. is there.

(C) Problems to be Solved by the Invention The present invention prevents the intrusion of fine dust from the indicator intake hole by making the indicator intake hole communicating with the dust indicator invisible from the surface of the cleaner body, and is rotatable. It is a technical task to obtain a vacuum cleaner with improved handleability.

(D) Means for Solving the Problems The vacuum cleaner of the present invention has an indicator storage chamber in which a dust indicator is stored on an upper surface of a cleaner main body having an electric blower and a dust collection chamber, and the indicator storage chamber. A handle housing portion for housing a handle rotatably supported by the cleaner body adjacent to the cleaner body is formed, and the indicator housing chamber is formed with a partition partitioning the indicator housing chamber and the handle housing portion. It is characterized in that it communicates with the outside through the provided intake hole.

(E) Function With the above-described configuration, when the handle is inverted, the surface of the intake hole is covered by the handle stored in the handle storage portion and becomes invisible from the outside, but the intake hole connects the indicator storage chamber and the handle storage portion. The dust indicator communicates with the outside through a gap between the partition and the handle, and the like, so that the dust indicator can be operated accurately during cleaning.

In addition, since the intake hole is formed in a partition wall that partitions the indicator storage chamber and the handle storage portion, and furthermore, the handle is opposed to the intake hole, so that dust is prevented from being sucked from the intake port, and the dust indicator is removed. Operational reliability is maintained.

(F) Example Hereinafter, a vacuum cleaner of the present invention will be described based on an example shown in the drawings.

(1) is a canister-type electric vacuum cleaner main body, which comprises a lower case (2) and an upper case (3) for closing the upper rear half of the lower case (2), and constitutes a main body case (4).
A lower part of the upper case (3) accommodates the electric blower (5) and forms an equipment storage room (7) having an exhaust hole (6) at the rear part. Forming a dust collecting chamber (9) having a top opening (8) for use. (10) is a lid composed of an outer lid (11) and an inner lid (12) that openably and closably cover an upper opening (8) of the dust collecting chamber (9), and the lid (10) is a rear part. A pair of lid pivoting pieces (13) (13) protruding from the upper case (3) are pivotally mounted on pivoting ribs (14) (14) formed on the upper surface of the front part of the upper case (3). The clamp (15) attached to the portion is configured to be hooked and fixed to the engaging claw (16) on the front wall of the lower case (2). The clamp (15) is urged by a spring (17) so that its hook (15a) always rotates backward.
a) hooks and engages with the engaging claw (16) from the outside and pulls the handle (15b) upward to release the engagement and open the lid (10). I have.

(20) is an indicator cover fixed to the rear recess (21) of the cover (10), and covers the recess formed at the rear of the upper surface of the cover (10) with the indicator cover (20). It is divided into an indicator storage chamber (21) in which the indicator (19) is stored and a handle storage section (22) in which a handle (18) described later is stored. (18) is a U-shaped handle, and a shaft hole (2) formed on a side wall (20a) of the indicator cover (20) with a rotating shaft (23) protruding from both inner walls.
4) It is rotatably supported by (24) and is stored in the handle storage section (22) in an inverted state.
(25) is a handle take-out recess formed at the front of the indicator cover (20), and communicates with the handle storage (22).

(26)... Are indicator suction holes formed near the shaft hole (24) in the indicator cover (20) and the side wall (22a), which are partition walls for partitioning the indicator storage chamber (21) and the handle storage section (22). , (27) serve as a passage between the handle (18) and the handle storage portion (22).
A lower passage recess formed in the inner wall on the back side of the handle connects the handle take-out recess (25) and the indicator intake hole (26) when the handle (18) is stored in the handle storage section (22). To this end, the handle (18) is formed in a groove shape by being undercut along the inner wall over both ends.

(28) is a suction port for connecting a suction hose provided in the center of the lid (10), and a suction port (29) provided in the outer lid (11).
And the insertion opening (3) of the inner lid (12) facing the suction opening (29).
0) and the inner lid (1)
The hose insertion tube (32) fixed to 2) and the insertion tube (3
2) a sliding suction port shutter plate (33) supported between the upper surface of 2) and the suction port (29) to open and close the suction port (29);

(34) The upper surface opening (8) in the dust collecting chamber (9).
A box-shaped filter having air permeability and retaining shape that is removably accommodated in the filter, and a paper bag filter that is removably accommodated in the box-shaped filter (34). (36) is a holding frame for detachably attaching the mouth plate (35a) of the paper bag filter (35). The holding frame (36) is placed on the opening edge of the box-shaped filter (34) and When the lid (10) closes the upper opening (8), it faces the inner lid (12) and comes into pressure-tight contact with the suction port packing (31).

(37) is a component storage chamber formed on the upper surface of the upper case (3) for storing small cleaning parts (38)... Such as a narrow-mouth suction tool, and a rotary component storage that pivotally supports the rear part. Lid (39)
It is covered with the opening and closing freely.

Reference numeral (40) denotes an upright mounting leg provided on the rear surface of the upper case (3), and reference numeral (41) denotes an operation button of a cord reel brake mechanism facing a cutout of the leg.

As shown in FIG. 4, the dust indicator (19) has a red display body (44) and a green display body (42) in a transparent cylindrical body (42) having an air opening (43) formed in one end bottom surface (42a). 45)
The dust indicating cylinder (46) is slidably housed, and the dust indicating cylinder (46) is constantly pressed against the one end bottom surface (42a) by a spring (47). A bypass pipe (49) projecting from the inner lid (12) is connected to the pressure side opening (48). (50) is an electric blower (5) in the equipment storage room (7) so as to airtightly communicate with the bypass pipe (49) when the lid (10) is closed.
Negative pressure detection holes provided on the upper wall (51a) of the suction section (51), and the suction section (51) is provided with a communication hole (5) provided with a filter body (52).
3), and communicates with the dust collection chamber (9) via the suction port (51). The opening (43) communicates with the handle take-out recess (25) from the indicator suction hole (26) through the lower passage recess (27).
(54) is an indicator viewing window provided on the indicator cover (20). And the dust indicator (19)
The green indicator (45) of the dust indicator tube (46) is always located below the viewing window (54), and the paper filter (35)
The negative pressure in the dust collection chamber (9) and the suction unit (51) is reduced to a predetermined value due to the dust collection amount in the inside being full or the box-shaped filter (34) and the filter body (52) being clogged. When it becomes lower, the dust indicating cylinder (46) moves against the urging force of the spring (47), and the red indicator (44) is positioned below the viewing window (54) to notify the user, The outside air that has flowed in through the indicator intake holes (26)
3), flows into the electric blower (5) through the ventilation holes (55a) and (55b) of the dust indicating cylinder (46), the suction side opening (48), the bypass pipe (49) and the suction pressure detection hole (50), The electric blower (5) is cooled.

The hose insertion tube (32) has a pair of sliding support ribs (56) (56) extending laterally, and a pair of holding ribs (57) (57) protruding from the upper surface of the insertion tube (32). 57), and the first, left and right ends of the back surface of the suction shutter plate (33)
There are second thick ribs (58) and (59), and a pair of opening / closing guide ribs extending in the left and right direction slidably abutting the front and rear end faces of the suction shutter plate (33) on the back surface of the upper lid (11). There are (60) and (60). As shown in FIG. 6, the suction port shutter plate (33) has the second thick rib (59) when the suction port (29) is closed, and the first thick rib (58) when the suction port (29) is open. By riding on the pair of holding ribs (57) (57) and being sandwiched between the hose insertion tube (32) and the upper lid (11), rattling is prevented.

At the time of cleaning, the handle (18) is housed in the handle housing (22) and the indicator air inlet (26) ...
As the dust covers the surface of the indicator, fine dust is drawn through the indicator air inlet (26).
And the indicator intake hole (26)
Are connected to the handle take-out recess (25) through the lower passage recess (27) of the handle (18) to contact the outside air and take in the outside air.
9) always works accurately.

Further, when the cleaner body (1) is moved, the lower passage recess (2) of the handle (18) is moved from the handle take-out recess (25).
By putting your fingers on 7), the handle can be easily raised. When the handle (18) is lifted, the lid (1
The center part of (0) is pulled upward, so the lid (1
0) bends upward and this lifting force is clamped (15)
And a force is applied in a direction in which the clamp (15) engages, so that the engagement between the clamp (15) and the main body case (4) is further ensured. Therefore, the closed state of the lid (10) is reduced. The lid (10) is further strengthened and does not inadvertently open.

(G) Effects of the Invention As described above, according to the present invention, since the indicator intake hole is formed in the partition that divides the handle housing portion from the indicator storage chamber in which the dust indicator is stored, the intake hole is formed when the handle is inverted. Is covered by the handle to make it invisible from the outside of the cleaner body, so that the appearance can be improved, and the inflow of dust into the air inlet can be prevented.

[Brief description of the drawings]

1 is a partially cut-away plan view, FIG. 2 is a perspective view, FIG. 3 is a sectional side view, and FIG.
FIG. 5 is a sectional view of a main part, FIG. 5 is a perspective view of a hose insertion tube, and FIG.
The figure is a main part diagram showing the opening and closing state of the suction shutter plate,
(A) is a plan view of the closed state, (B) is a sectional view of the same, (C)
Is a plan view in an open state, and (d) is a sectional view of the same. (1) ... vacuum cleaner body, (5) ... electric blower, (18)
… U-shaped handle (handle), (19)… Dust indicator, (22)… Handle storage recess, (25) ……
Handle take-out recess, (26) ... Indicator intake hole,
(27) …… The lower passage recess.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 62-10862 (JP, U) JP-A 60-137959 (JP, U) JP 1-23395 (JP, Y2) JP-63 42938 (JP, Y2) Jingu Hei 3-55435 (JP, Y2) Jigyo Hei 1-23396 (JP, Y2)

Claims (1)

(57) [Claims] An indicator storage chamber for storing a dust indicator is formed on an upper surface of a cleaner main body having an electric blower and a dust collection chamber, and is rotatable with respect to the cleaner main body adjacent to the indicator storage chamber. A handle storage portion in which a handle pivotally supported by the handle storage portion is formed, and the indicator storage chamber communicates with the outside through an air intake hole formed in a partition partitioning the indicator storage chamber and the handle storage portion. Characterized vacuum cleaner.