JPH0440008B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a vacuum cleaner in which a lid that closes an opening for installing a filter in a dust collecting section is not closed when a filter is not installed. Regarding.

(Prior art) When a conventional filter is not installed,
For example, a vacuum cleaner in which the lid that closes the opening for installing the filter in the dust collection section is prevented from being closed is as follows:
Publication No. 45453 of 1983 or Utility Model Application No. 52-
A structure described in Japanese Patent No. 42573 is known. In this conventional vacuum cleaner, the lower part of the mouth frame attached to the opening of the dust collection bag formed of a filter material is inclined in the diagonal direction of the filter mounting plate of the dust collecting section, and the lower part of the mouth frame is attached to the lower part of the filter mounting plate. Engage with the provided engaging part, raise the mouth frame vertically along the filter mounting plate in this state, and then hold the upper part of the mouth frame with a clamp, and attach the mouth frame to this filter mounting plate. By attaching the stopper to the surface of the mouth frame, the stopper is retracted and rotated to a position where it does not come into contact with the engagement protrusion of the lid that closes the opening of the dust collecting section.

(Problems to be Solved by the Invention) In the vacuum cleaner of the conventional structure described above, in order to attach the filter, the lower part of the mouth frame is engaged with the engaging part from an oblique direction, and in this state, the mouth frame is held vertically. This requires two operations, resulting in poor operability, and the stopper comes into contact with the face of the filter mouth frame and is retracted from the position where it collides with the engagement protrusion on the lid body by the detection operation of the filter. Therefore, if the mouth frame made of cardboard is deformed such as warping, the detection operation by the stopper cannot be performed reliably, and there is a problem that the detection by the filter may become uncertain.

The present invention was developed in view of the above-mentioned problems, and the filter mouth frame can be mounted by simply inserting the filter into the guide groove of the filter mounting plate, providing good mounting operability and reliably detecting the filter mounting. To provide a vacuum cleaner that can

(Means for Solving the Problems) The vacuum cleaner of the present invention includes a dust collecting part that forms a suction port and has an opening, and is attached to the opening of the dust collecting part so as to be openable and closable and engages with the inner surface. A filter attachment having a lid body with protrusions projecting thereon, and a communication port formed on the suction port side in the dust collecting section and having a communication port communicating with the suction port opened in the center and guide grooves formed by filter locking pieces on both sides. A plate, a dust collection bag formed of a filter medium, a dust collection port that is attached to the opening of the dust collection bag and communicates with the communication port, and both side edges can be inserted and removed into the guide groove of the filter mounting plate. A bag-shaped dust collecting filter consisting of a mouth frame that is inserted and mounted along the inner surface of the filter mounting plate, and one side of a rotating center rotatably supported by a shaft within the dust collecting section. The filter mounting plate has a locking portion that constantly protrudes into the guide groove of the filter mounting plate and is pressed against one side end surface of the mouth frame of the mounted dust collecting filter, and the lid is located on the other side of the rotation center. a rotary body having a stopper whose tip protrudes toward the inner surface of the lid body in correspondence with the engaging protrusion of the lid body, and the rotary body is provided with a stopper that extends when the filter is removed from the filter mounting plate of the dust collecting section. , the stopper is located at a position where it comes into contact with the engagement protrusion of the lid body to prevent the closure of the lid body, and when the filter is attached to the filter mounting plate, one end surface of the mouth frame of the filter is in contact with the engagement protrusion of the lid body. The stopper is rotated by pressing the joint portion, and the stopper is rotated to a position where it escapes from the engaging protrusion of the lid, thereby making it possible to close the lid.

(Function) The vacuum cleaner of the present invention opens the lid of the dust collection section,
With the filter mounting opening open, when the filter mouth frame is inserted into the guide groove of the filter mounting plate and installed, the engaging part of the rotating body will be inserted into the guide groove and will come into contact with one side end surface of the installed mouth frame. When the stopper contacts and is pressed, the rotating body rotates and the stopper retreats to a position where it does not abut against the engagement protrusion of the lid, allowing the lid to close. Since the mouth frame is engaged with the guide groove, even if the mouth frame is slightly warped or otherwise deformed, it is corrected, and the rotating body can reliably detect attachment of the filter. In addition, when the filter is not attached, the engaging part of the rotary body protrudes from the mounting surface of the mouth frame, and the engaging protrusion of the stopper abuts when the lid is closed, and the lid is closed. This will notify you that the filter is not installed.

(Example) The configuration of an embodiment of the present invention will be described.

Reference numeral 1 denotes a vacuum cleaner main body, which is composed of a main body case 3 that houses an electric blower 2 and a dust collection case 4 that is detachably attached to the main body case 3 and that forms a dust collection section.

The dust collection case 4 has a suction port 5 formed on the front side, and an air supply port 6 that communicates with the suction side of the electric blower 2 disposed inside the main body case 3 on the rear side. Further, an opening 7 for attaching a filter is formed in the upper part of the dust collection case 4, and a lid 8 that can be opened and closed is attached to this opening 7. Further, a case frame 9 is provided around the periphery of the opening 7 of the dust collecting case 4, and a seal packing 10 is provided along the inner periphery of the case frame 9. Furthermore, a seal wall 11 is provided protruding from the inner surface of the lid body 8 in correspondence with the seal packing 10. Furthermore, an engaging protrusion 12 is provided protruding from the inner surface of the lid body 8.

A filter mounting plate 14 having a communication port 15 airtightly communicating with the suction port 5 via a suction port seal packing 13 is provided at the front part of the dust collection section in the dust collection case 4. 14 is formed in a rectangular shape, and the communication port 15 is opened in the center part.Furthermore, the filter mounting plate 14 has hook-shaped ends bent inward on both sides of the inner surface and on the lower side. A filter locking piece 16 is provided between the tip and the inner surface of the filter mounting plate 14 to form a guide groove 17 with a predetermined interval.

Further, an auxiliary filter 18 that covers the air supply port 6 is attached to the rear side of the dust collection section in the dust collection case 4.

21 is a dust collection filter, and this filter 21 is
As shown in FIG. 4, it is formed of a dust collection bag 22 made of a filter material such as paper and a rectangular opening frame 23 attached to the opening of the dust collection bag 22. A dust collection port 24 that communicates with the communication port 15 is opened in the center. The dust collecting filter 21 is inserted by inserting both side edges of the mouth frame 23 into the guide grooves 17 between the inner surface of the filter mounting plate 14 and each filter locking piece 16, and inserting the mouth frame 23 into the filter mounting plate 14. The lower edge of the mouth frame 23 is attached along the inner surface of the lower filter locking piece 1.
The dust collecting filter 21 is engaged and held at 6, and the dust collecting filter 21 is attached to the dust collecting section.

Furthermore, 31 is a rotating body, and this rotating body 31 is connected to a shaft 32 that is protruded from the outside of the filter mounting plate 14.
a rotation center portion 33 rotatably supported by;
The tip provided on one side of this rotating center portion 33 is along the filter mounting surface on the inner surface of the filter mounting plate 14, and the guide groove 17 of the filter mounting plate 14
an engaging portion 34 that protrudes inward and comes into contact with one end of the opening frame 23 of the dust collecting filter 21; and an engaging protrusion 1 of the lid body 8 on the other side of the rotation center portion 33.
2 and a stopper 35 whose tip protrudes toward the inner surface of the lid 8 of the dust collecting case 4.

The rotary body 31 has an axis connecting the engaging portion 34 and the stopper 35 that is deviated to one side from the shaft 32, which is the center of rotation of the rotary body 31, to the outside of the filter mounting plate 14. The engaging portion 34 and the stopper 35 rotate downward due to their own weight, and one side of the stopper 35 comes into contact with the case frame 9 of the dust collection case 4 to restrict the downward rotation. The upper side is the engagement protrusion 1 of the lid body 8.
2 and is held in a position where it abuts the engaging portion 3
4 is designed to always protrude from one side of the filter mounting surface of the filter mounting plate 14.

Further, a corner portion 36 of the stopper 25, which is on the outer peripheral side of rotation of the rotating body 31, is chamfered.

When the filter 21 is attached to the engaging portion 34 of the rotating body 31, the filter 21
When the opening frame 23 contacts and presses the rotating body 31, the rotating body 31 rotates upward, and the stopper 35 rotates upward and retreats to a position where it does not come into contact with the engaging protrusion 12 of the lid body 8. It's getting old.

Next, the operation of this embodiment will be explained.

When the dust collection filter 21 is not installed,
The rotating body 31 is rotated downward by the weight of the engaging portion 34 and the stopper 35, and when the lid 8 is closed, the stopper 35 comes into contact with the engaging protrusion 12 of the lid 8, thereby closing the lid 8. This prevents the lid 8 from being closed, and at a glance it becomes clear that the filter 21 is not attached. In addition, in such a state, even if the electric blower 2 is driven, the lid 8 remains open.
No suction force is generated from the suction port 5, and dust is not inadvertently sucked in and scattered.

In addition, with the lid 8 of the dust collection case 4 open and the opening 7 for attaching the filter open, the filter 2
1 to the guide groove 1 of the filter mounting plate 14.
7 and when installed, the engaging portion 3 of the rotating body 31
4 is inserted into the guide groove 17 and attached to the mouth frame 23
The rotary body 31 is rotated upward by being pressed against one end face, and the stopper 35 is retracted to a position where it does not abut the engagement protrusion 12 of the lid 8, and the lid 8 is closed. Cleaning is possible in this state.

Since the mouth frame 23 is engaged with the guide groove 17, even if the mouth frame 23 is slightly warped or otherwise deformed, it will be corrected by the guide groove 17, and the rotating body 31 will ensure that the filter 21 is attached. Detected.

In addition, during cleaning, the dust collection bag 22 of the dust collection filter 21
If the electric blower 8 is damaged, the dust will be captured by the auxiliary filter 18 and will not be sucked into the electric blower 8.

Furthermore, since the corner 36 on the rotational outer peripheral side of the mouth frame 23 of the dust collecting filter 21 is chamfered,
Even if the stopper 35 is not sufficiently rotated upward due to the mounting position of the mouth frame 23 being shifted when the filter 21 is mounted, or even if the corner 36 and the engaging protrusion 12 of the lid body 8 come into contact with each other, the chamfered , the engaging protrusion 12 can be retracted, and the lid body 8 can be closed smoothly.

In the structure of the embodiment described above, the axis of the rotating body 31 connecting the engaging portion 34 and the stopper 35 is deviated to one side from the center of rotation, and the rotating body 31 rotates downward due to its own weight.
Since the engaging portion 34 has a structure in which it always protrudes from the filter mounting surface of the filter mounting plate 14, the rotating body 31 does not require any biasing parts, but the structure is not limited to this. By biasing the rotating body 31 , the center of rotation of the rotating body 31 can be positioned on the axis connecting the engaging portion 34 and the stopper 35 .

(Effects of the Invention) According to the present invention, with the lid of the dust collecting section opened and the opening for attaching the filter open, the mouth frame of the filter is inserted into the guide groove of the filter attachment plate and attached. The engaging part of the rotating body is inserted into the guide groove and comes into contact with one side end surface of the attached mouth frame and is pressed, the rotating body rotates and the stopper retreats to a position where it does not collide with the engaging protrusion of the lid body. , the lid body can be closed, and the filter mounting operation is simple, just by inserting and engaging the mouth frame into the guide groove of the filter mounting plate, and the mounting operability is improved. Furthermore, since the mouth frame is engaged with the guide groove, even if the mouth frame is slightly warped or otherwise deformed, it is corrected, and the rotating body can reliably detect attachment of the filter. In addition, when the filter is not attached to the filter attachment plate, the engaging part of the rotating body protrudes from the attachment surface of the mouth frame, and the engaging protrusion of the stopper collides with the lid when the lid is closed. Since the body cannot be closed, it is easily determined that the filter is not attached, and the attachment of the filter can be reliably detected.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of a vacuum cleaner showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional front view of the filter mounting portion, and FIG. 3 is a cross-sectional plan view of the same.
FIG. 4 is a perspective view of the dust collection filter same as above. DESCRIPTION OF SYMBOLS 1...Vacuum cleaner main body, 4...Dust collection case forming a dust collection part, 5...Suction port, 7...Opening part of the dust collection part, 8...Lid body, 12...Engagement protrusion, 14 ... Filter mounting plate, 15 ... Communication port, 16 ... Filter locking piece, 17 ... Guide groove, 21 ... Dust collection filter, 22 ... Dust collection bag, 23 ... Mouth frame, 24 ...
Dust collection port, 31... Rotating body, 32... Shaft, 33...
Center of rotation of rotating body 31, 34... engaging portion, 35...
...stopper, 36...chamfered corner.

Claims (1)

[Scope of Claims] 1. A dust collection part that forms a suction port and has an opening; a lid that is attached to the opening of the dust collection part so as to be openable and closable and has an engaging protrusion protruding from its inner surface; A filter mounting plate that is formed on the suction port side in the dust part and has a communication port that opens in the center and that communicates with the suction port and has guide grooves formed by filter locking pieces on both sides, and a dust collection bag formed of a filter material. A dust collection port is attached to the opening of the dust collection bag and communicates with the communication port, and both edges are removably inserted into the guide groove of the filter mounting plate, and the filter is mounted along the inner surface of the filter mounting plate. a bag-shaped dust collection filter consisting of a mouth frame, and a rotation center rotatably supported by a shaft in the dust collection part, and a rotating center part that constantly protrudes into the guide groove of the filter mounting plate on one side. The lid body has an engaging portion that comes into contact with and is pressed against one side end surface of the mouth frame of the dust collection filter that is attached, and the lid body is provided on the other side of the rotation center portion in correspondence with the engaging protrusion of the lid body. a rotating body having a stopper whose tip protrudes toward the inner surface of the rotary body, and the rotating body is configured such that when the filter is removed from the filter mounting plate in the dust collecting section, the stopper engages with the engagement protrusion of the lid body. When the filter is mounted on the filter mounting plate, one end surface of the mouth frame of the filter rotates by pressing the engaging portion, and A vacuum cleaner characterized in that a stopper rotates to a position where it escapes from an engaging protrusion of the lid, thereby making it possible to close the lid. 2. The vacuum cleaner according to claim 1, wherein the stopper of the rotating body has a corner portion on the outer circumferential side of the rotating body that is chamfered.