JPH022272Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a vacuum cleaner.

In recent years, vacuum cleaners have been devised in which a dust collection bag is installed inside the dust case, and the dust collection bag acts as a filter to purify the air and collect dust inside, and then the dust collection bag is disposed of along with the trash. ing. However, the dust collection bag must be airtightly attached to the suction port by hand, which is cumbersome.

This invention was made in view of the above points, and the object is to provide a vacuum cleaner in which a dust collection bag can be attached very easily while improving the airtightness of the dust collection bag to the suction port.

The idea is to open the lid and insert the attachment part of the dust collection bag into the holding part provided inside the dust case through the dust disposal opening, and when the lid is closed, the attachment part is pressed against the suction port side. Therefore, the dust collection bag is configured to be extremely easy to attach while improving airtightness with the suction port.

An embodiment of this invention will be explained based on the drawings.
Reference numeral 1 denotes a main body case that houses an electric blower 2 and a cord reel 4 around which a cord 3 is wound, and has wheels 5 on both sides of the lower part. Next, suction port 6
A dust case 9 is provided in which a dust collection chamber 8 having an opening 7 on the lower surface is formed. A filter frame 11 for holding a filter 10 is provided in the dust collection chamber 8. Further, a gear 1 is provided on the partition wall 12 on the exhaust side of the dust case 9 to control the rotation of the cord reel 4.
A dust removal body 14 is provided which rotates through the dust removal body 3, and a packing 16 is provided which surrounds the dust removal body 14 and is joined to the suction side partition wall 15 of the main body case 1. A packing 17 is also attached to the opening edge of the dust case 9. A through hole 18 is formed in the partition wall 15 of the main body case 1, a through hole 19 is formed in the dust removing body 14 (FIG. 3), and a through hole 19 is also formed in the partition wall 12 of the dust case 9, although not shown. It has holes. Thus, a bottom cover 21 serving as a cover body to which the turning wheel 20 is attached is provided. Near one end of the bottom cover 21 on the exhaust side, as shown in FIG. 4, there are hinge pieces 22 projecting upward from both sides thereof, and these hinge pieces 22 are integrally formed with axes in the left and right direction. A pinion 23, a fulcrum shaft 24, and a locking protrusion 25 protruding downward from the center are formed. A U-shaped holding part 26 is formed on both sides of the lower part of the partition wall 12 of the dust case 9 to hold the fulcrum shaft 24 rotatably in a vertical plane and movably back and forth in a horizontal plane. In addition, a bottom cover 2 is provided on the lower suction side of the dust case 9 as shown in FIG.
A locking portion 27 is formed that abuts the free rotation end of the bottom cover 1 and supports it from below to press the bottom cover 21 against the packing 17. Further, a recess 28 is formed on the upper surface of the bottom lid 21 and has a depth a, which approaches the substantially inside side of the exhaust side of the packing 17. Therefore, the dust case 9 is prevented from moving in the front-rear direction by fitting the locking protrusion 25 of the bottom cover 21 into a fixed locking portion 29 formed at the lower part of the main body case 1. It is connected to the main body case 1 by locking a latch portion of a movable locking body 31 provided near the handle 30 of the main body case 1 into a locking hole 33 of the main body case 1. A transmission body 34 is provided that moves up and down along the partition wall 12 of the dust case 9. This transmitting body 34 is the third
As shown in FIG. 4, it has a pair of left and right legs 35, and these legs 35 have a slit-like notch 36 for allowing the hinge piece 22 of the bottom cover 21 to enter and exit, and a slit-like notch 36 for rotating both ends of the fulcrum shaft 24. Elongated holes 37 are formed to allow free and relative vertical movement, and slopes 38 are formed at the tops of these elongated holes 37, which slope toward the partition wall 12 as they move upward. Further, on the inner surface of these legs 35, a rack 39 is formed which engages with the pinion 23, as shown in FIG. A slope 41 is formed on the upper side of the rack 39. The slope 41 abuts against a slope 40 formed on the outer peripheral portion of the pinion 23 where no teeth are formed, and presses the fulcrum shaft 24 toward the partition wall 12 when the pinion 23 comes into contact with the slope 40.

Next, the exhaust side of the handle 30 of the dust case 9 is covered with a plate 42 as shown in FIG.
The upper part of the movable locking body 31 protrudes while being biased upward by a compression spring 44, and the upper end thereof and the movable locking body 31 are elastically connected with a compression spring 45 interposed therebetween.
Therefore, the two can work together or work independently. Further, an opening lead 46 is provided in the internal space 43 so as to be slidable in the left and right directions while being biased in the return direction by a compression spring 47. As shown in FIGS. 5 to 8, when the movable locking body 31 is locked with the locking hole 33 of the main body case 1,
A lock portion 49 and a pawl 50 are formed to lock into a recess 48 formed at the upper center of the lid 6 to lock the sliding movement of the opening lead 46. The opening lead 46 also has a claw 51 that engages with the upper side of the claw 50, and a lock portion 53 that engages with the upper surface of the claw 52 of the transmission body 34 to lock its movement in the opening direction (upward).
, and a scooping pressing portion 55 that comes into contact with the claw 54 of the transmitting body 34 by the pushing operation of the opening lead 46 is formed.

Therefore, the dust collection bag 5 made of breathable paper material
6 is provided. This dust collection bag 56 has an attachment portion 57 made of a hard plate material at its opening edge, and a connection port 58 connected to the suction port 6 is formed in this attachment portion 57 . Further, a donut-shaped sealing member 58a is fixed to the periphery of the connection port 58, and is hermetically joined to the outer periphery of a suction hose (not shown) inserted into the suction port 6. On both sides of the dust collection chamber 8, rib holding parts 59 are formed to slidably hold both side edges of the attachment part 57 of the dust collection bag 56 inserted from the opening 7 side.

Further, an operating section 60 that pushes down the attachment section 57 of the dust collection bag 56 is provided on the upper part of the dust case 9 so as to be slidable while being biased upward by a spring 61. This operation part 60 is a garbage compression plate 6
It also has 2. The attachment portion 57 is attached to one end of the dust compression plate 62 on the side of the suction port 6 and to the bottom cover 21.
Holding portions 63 and 64 that hold the upper and lower parts of the suction port 6 and locking portions 65 and 66 that press the upper and lower back surfaces of the mounting portion 57 toward the suction port 6 are formed.

In such a configuration, the state in which the movable locking body 31 is locked in the locking hole 33 of the main body case 1 is the state in which the movable locking body 31 is shown by the imaginary line in FIG. In this case, the lock portion 49 protrudes into the recess 48 and prevents the opening lead 46 from sliding. When the movable locking body 31 is pushed to separate the dust case 9 from the main case 1, the movable locking body 31 is raised by the force of the compression spring 45 until its pawl 50 comes into contact with the pawl 51 of the lid opening lead 46 (Fig. 5). ), the locking portion 49 is retracted from the recessed portion 48 and the opening lead 46 is released. The bottom cover 21 is pressed against the packing 17 by a locking part 27, and the bottom cover 21
Although the gravity of the turning wheel 20 does not act as a driving force for the opening operation, when the opening lead 46 is pushed,
First, the claws 50 and 51 shown in FIG. 5 come off and the movable locking body 31 retreats further upwards by the force of the compression spring 45. Then, the lock part 53 releases the transmission body 34, and the transmission body 34 is compressed. It rises due to the force of the spring 44 and the pressing force of the pressing part 55 of the opening lead 46. When the amount of pressure reaches T, it means that the transmitting body 34 has risen from the position shown in FIG. 9a to the position shown in FIG. It slides by a dimension t along the holding part 26 together with the pinion 23 and the bottom cover 21. That is, the free rotation end of the bottom cover 21 is released from the locking part 27. At this time, since the bottom cover 21 is quickly separated from the packing 17 due to the formation of the recess 28 as shown in FIG. 9b, the force required to slide the bottom cover 21 is small. This allows the bottom cover 21 to be pressed against the packing 17 with a strong force when the cover is closed, thereby improving sealing performance. In this way, after the bottom cover 21 and the locking part 27 are disengaged, the bottom cover 21 is urged in the opening direction by its own weight and the weight of the turning ring 20, so it cannot rotate about the holding part 26 as a fulcrum. , the pinion 23 meshes with the rack 39 as shown in FIG. 9a.
The bottom cover 21 is rotated from the position shown in FIG. 9 to the position shown in FIG. 9d. In this process, the transmission body 34 is connected to the movable locking body 31.
It works independently and is not linked to. With the lid open, place the dust case 9 on top of a trash can, etc.
When the operation part 60 is pressed, a part of the operation part 60, that is, the garbage compression plate 62, pushes down the attachment part 57 of the dust collection bag 56, and the garbage can be easily thrown away together with the dust collection bag 56 without getting the hands dirty.

Next, the attachment part 57 of the new dust collection bag 56 is inserted into the holding part 59 from below. Even in this state, the attachment part 57 will not fall off due to frictional force, but the bottom cover 2
By closing 1, it is securely fixed to the clamping parts 63 and 64.

In the lid closing operation, first, when the movable locking body 31 is pushed, the force of the compression spring 45 increases, and the transmission body 34 is moved down in conjunction with the force of the compression spring 45. Therefore, the bottom cover 21 rotates in the closing direction by an operation opposite to the opening operation, joins to the packing 17 of the dust case 9, and then slides forward (leftward in FIG. 1) and locks. It is locked in the section 27. In this state, the movement of the transmitting body 34 in the opening direction is locked unless the opening lead 46 is pressed, and the downward movement of the transmitting body 34 is locked by the joining of the slopes 40 and 41 as shown in FIG. 9a. is,
At this time, the fulcrum shaft 24 is also pushed in the direction in which the amount of overlap t between the bottom cover 21 and the locking portion 27 increases, and the lid is maintained in a securely closed state. At this time, the attachment part 57 of the dust collection bag 56 is pressed against the suction port 6 side by the locking parts 65 and 66, so that the dust collection bag 56 can be attached very easily to the suction port 6 while improving airtightness. It is possible.

With the dust collection bag 56 set in the dust collection chamber 8 in this manner, the descending movement of the dust compression plate 62 is blocked by the attachment portion 57, and the dust collection bag 56 will not be torn. In addition, a filter 10 is installed inside the dust case 9.
Since the dust collection bag 56 is stored therein, if the dust collection bag 56 is not at hand, cleaning can be performed without setting the dust collection bag 56. In this case, the dust inside is compressed by the dust compression plate 62 to improve the dust collection performance.

Since this device is configured as described above, the attachment part of the dust collection bag can be pressed against the suction port side from the locking part by the closing operation of the lid, and therefore the dust collection bag can be airtight against the suction port. This has the effect of making it extremely easy to install while improving performance.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a partially cutaway side view, Figure 2 is a partially cutaway vertical side view of the dust case with the dust collection bag pushed down and thrown out from the opening, Figure 3 is a back view of the dust case, and Figure 4 5 is a partially exploded perspective view showing the relationship between the back surface of the dust case, the bottom cover, and the transmitting body, and FIG. Figure 6 is an exploded perspective view of the movable locking body and the open lid lead, Figure 7 is a plan view thereof, and Figure 8 is an enlarged view of the relationship between the movable locking body, the open lid lead, and the main body case. FIG. 9 is a vertical side view of the main parts showing the opening and closing operation of the bottom cover in an enlarged manner. 6...Suction port, 7...Opening, 9...Dust case, 21...Bottom lid (lid body), 56...Dust collection bag, 5
7... Attachment part, 65-66... Locking part.

Claims (1)

[Scope of utility model registration request] A suction port to which a suction hose is connected is formed in the front of the dust case that is maintained in a negative pressure state, and an opening for disposing of dust is formed in the lower part of the dust case, and a lower part of the partition wall on the exhaust side of the dust case is formed. U-shaped holding parts that are long in the front-rear direction are formed on both sides, a lid body is provided to close the lower part of the dust case, a fulcrum shaft is formed behind the lid body, and this fulcrum shaft is attached to the U-shaped holder part. The dust case is mounted so as to be rotatable and movable in the front and back direction in a horizontal state, and an engaging portion is formed at the lower front of the dust case into which the rotatable free end of the lid is inserted when the lid moves forward. , a dust collection bag made of a breathable member having an attachment part formed with a connection hole connected to the suction port is provided, a holding part for holding the attachment part of the dust collection bag is provided inside the dust case, and the The dust case is provided with an operation part for pushing out the attachment part of the dust collection bag from the holding part, and the lid body is integrally formed with a locking part with which a lower part of the attachment part engages, and The vacuum cleaner is characterized in that the mounting portion is brought into pressure contact with the suction port via the locking portion.