JPS6250139B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a vacuum cleaner whose dust disposal opening is closed with a lid.

Technical Background and Problems Conventionally, in this type of vacuum cleaner, in order to open the lid that blocks the dust disposal opening, one has to grasp the dust case with one hand and push the lid with the other hand. The clamps on the body must be removed. As a result, the hand that removes the clamp is located near the lid, making it easy for that hand to come into contact with the emitted dust, and the opening position during operation is close to the face, making it unhygienic. . In particular, in order to reliably maintain the lid that closes the opening of the dust case in a closed state, it is necessary to slide the lid in the planar direction of the lid while the opening is closed. A structure is adopted in which the dust case is engaged with a locking part of the dust case to lock rotation in the opening direction. With this type of structure, the lid must be slid and released from the locking part of the dust case while gripping the dust case, and then the lid must be opened, and must be done with both hands. This requires operation by

Purpose of the invention The present invention eliminates the risk of getting your hands dirty when disposing of dust.
To obtain a vacuum cleaner capable of sanitary dust disposal.

Embodiments of the Invention The present invention will be described with reference to embodiments shown in 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. The dust collecting chamber 8 is provided with a filter unit 10 and a compression plate 11 that moves up and down while being biased upward. Further, a dust removal body 14 is provided on the exhaust side partition wall 12 of the dust case 9, and the dust removal body 14 rotates by inheriting the rotation of the cord reel 4 via a gear 13. A packing 16 is provided which joins to the partition wall 15 on the suction side of 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, and a through hole 19 is formed in the dust removing body 14 (FIG. 2),
Although not shown, a through hole is also formed in the partition wall 12 of the dust case 9. A lid body, ie, a bottom lid 21, is provided to which a turning wheel 20, which is a wheel, is attached. Near one end of the bottom cover 21 on the exhaust side, as shown in FIG. A pinion 23, a fulcrum shaft 24, and a locking protrusion 25 protruding downward from the center are formed. On both sides of the lower part of the partition wall 12 of the dust case 9, there is a holding part 26 which serves as a U-shaped shaft attachment part that holds the fulcrum shaft 24 rotatably in a vertical plane and movable back and forth on a horizontal plane. It is formed.
Further, on the lower suction side of the dust case 9, as shown in FIG. A locking portion 27 is formed. In addition, a packing 1 is provided on the top surface of the bottom lid 21.
The concave portion 28 approaching approximately the inside of the side of the exhaust side of 7 is a
It is formed with a certain depth. Therefore, the dust case 9 is attached to the locking protrusion 2 of the bottom cover 21.
5 is fitted into a fixed locking part 29 formed at the lower part of the main body case 1 to prevent movement in the front and rear direction,
The latch portion 32 of the movable locking body 31 provided near the handle 30 of the dust case 9 is inserted into the locking hole 3 of the main body case 1.
3, it is connected to 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 has a pair of left and right legs 35 as shown in FIGS. 2 and 3, and these legs 35 have a slit-like notch 36 through which the hinge piece 22 of the bottom cover 21 enters and exits, and a slit-like notch 36 that allows the hinge piece 22 of the bottom cover 21 to enter and exit, and the fulcrum. Elongated holes 37 are formed as lid sliding parts that hold both ends of the shaft 24 rotatably and relatively movable up and down, and in the upper part of these elongated holes 37, partition walls 12 are formed as they move upward.
A side slope 38 is formed. Also,
Rack 39 which engages with the pinion 23 is formed on the inner surface of these leg portions 35, as shown in FIG. A slope 41 is formed on the upper side of the rack 39, which abuts against a slope 40 formed on the outer periphery of the pinion 23 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 projects upward while being urged 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, in the internal space 43, an operating section 46 serving as a push button is provided 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. 4 to 7, the movable locking body 31
The lock portion 49 is a protrusion that locks into a recess 48 formed at the upper center of the operation portion 46 when the operation portion 46 is engaged with the locking hole 33 of the main body case 1 to lock the sliding movement of the operation portion 46, and a claw. 50 are formed. The operating portion 46 also includes a claw 51 that engages with the upper side of the claw 50, 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 lock portion 53 that engages with the upper side of the claw 50. A pressing portion 55 is formed which comes into contact with and scoops up the claw 54 of the transmission body 34 by the pushing operation of the portion 46 .

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 in the imaginary line in FIG. In this case, the lock portion 49 protrudes into the recess 48 and prevents the operating portion 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 operating section 46 (FIG. 4). , the lock portion 49 is retracted from the recess 48 and the operating portion 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 operating section 46 is pressed,
First, the claws 50 and 51 shown in FIG. 4 come off and the movable locking body 31 retreats further upwards by the force of the compression spring 45. Then, the locking part 53 releases the transmission body 34, and the transmission body 34 is compressed. It increases due to the force of the spring 44 and the pressing force of the pressing part 55 of the operating part 46. When the amount of pressure reaches T, it means that the transmitting body 34 has risen from the position shown in FIG. 8a 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 engaging portion 21a at the free rotation end of the bottom cover 21 is released from the locking portion 27. At this time, the bottom cover 21
Packing 1 by forming the recess 28 as shown in Figure b.
7, the force required to slide the bottom cover 21 is small. This allows the bottom cover 21 to be brought into pressure contact with the packing 17 with a strong force during closing, 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. Since the pinion 23 engages with the rack 39, the bottom cover 21 rotates from the position shown in FIG. 8c to the position shown in FIG. 8d. In this process, the transmitter 34
moves independently without interlocking with the movable locking body 31. With the lid open like this, remove the dust and remove the movable locking body 3.
When 1 is pressed, the force of the compression spring 45 increases and the transmission body 34 is moved down. Therefore, the bottom cover 21 is rotated in the closing direction by an operation opposite to the opening operation, and after being joined to the packing 17 of the dust case 9, it slides forward (leftward in FIG. 1) in the joined state. ), and the engaging portion 21a engages with the locking portion 27. In this state, the movement of the transmitting body 34 in the opening direction is locked unless the operating part 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. 8a. , at this time, the fulcrum shaft 24 also connects the bottom cover 21 and the locking part 27.
Therefore, the airtightness of the bottom cover 21 is high and the locking is reliable, and dust remaining in the dust case 9 is prevented from spilling.
This series of operations is possible by arranging the movable locking body 31 and the operation part 46 near the handle 30 of the dust case 9, making it easy to attach and detach the main case 1 and the dust case 9 and to open and close the bottom cover 21 with one hand. Even if the stroke between the movable locking body 31 and the transmission body 46 is small, the bottom cover 21 can be opened and closed widely by the engagement between the rack 39 and the pinion 23. That is, the pressing force of the bottom cover 21 against the packing 17 is sufficient, the airtightness is improved, and the amount of protrusion of the movable locking body 31 is also reduced, thereby improving the aesthetic design. In addition, the bottom cover 21 has a holding part 26 and a locking part 27.
Therefore, even if it is biased in the opening direction and receives pressure from the compression plate 11 during dust compression, it will not open or lose its airtightness. Then, the locking protrusion 25 of the bottom cover 21 is fitted into the fixed locking portion 29 of the main body case 1, and the movable locking body 3
The main body case 1 and the dust case 9 are connected by pushing 1 and locking it in the locking hole 33. In this state, as shown in FIG. Therefore, in this state, a force in the longitudinal direction is applied to the bottom cover 21 due to the frictional force between the turning wheel 20 and the bottom surface, but as described above, the fulcrum shaft 24 of the bottom cover 21 is locked. Movement in the longitudinal direction is prevented by the long hole 37 of the transmission body 34, the free end edge of the bottom cover 21 contacts the locking part 27, and the locking protrusion 25 contacts the fixed locking part 29. The back and forth movement is prevented, so the bottom cover 21 and the locking part 27 will not come unwrapped. The locking protrusion 25 is surrounded by the fixed locking portion 29, so the design is not impaired, and it is opened when the dust case 9 is separated from the main case 1, so the opening and closing operation of the bottom cover 21 is easy. It doesn't make it complicated.

Effects of the Invention Since the present invention is configured as described above, even if the lid body engages with the locking part of the dust case and the opening is reliably closed, the handle can be opened with one hand. By operating the operation part with one hand, the lid body can be disengaged from the locking part and the dust case opening can be opened. This allows dust to be disposed of while keeping the opening away from the face. It has the effect of being hygienic due to the fact that it can be used.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention.
The figure is a partially cutaway side view, Figure 2 is a rear view of the dust case, and Figure 3 is a partially cutaway exploded perspective view showing the support structure between the dust case and the bottom cover and the relationship with the transmission body. Fig. 4 is an enlarged longitudinal cross-sectional rear view of a part of the dust case showing the relationship between the movable locking body, the operating section, and the transmitting body, and Fig. 5 is an enlarged view of the mounting relationship between the movable locking body and the operating section. 6 is a plan view thereof, FIG. 7 is a longitudinal sectional side view thereof, and FIG. 8 is a partially enlarged longitudinal sectional view showing the meshing operation of the rack and pinion. 1...Main case, 2...Electric blower, 7...
Opening, 9... Dust case, 21... Bottom cover (lid body), 21a... Locking part, 23... Pinion, 2
4... Fulcrum shaft, 26... Holding part (shaft attachment part), 27
...Engaging portion, 30...Handle, 34...Transmission body, 3
7...Long hole, 39...Rack, 41...Slope, 4
6...Operation unit.

Claims (1)

[Claims] 1 A main body case containing an electric blower and a dust case with an opening formed on the bottom surface are provided, and a lid body for opening and closing the opening of the dust case is biased in the opening direction and is provided so as to be freely rotatable and horizontally movable. , an engaging portion is formed at one end of the lid body, and a fulcrum shaft integrally formed with a pinion is fixedly provided at the other end, and the horizontal movement of the lid body is provided at one end of the opening of the dust case. A locking part to which the engaging part engages and disengages is formed, and a shaft attachment part is formed at the other end to hold the fulcrum shaft so as to be movable back and forth on a horizontal plane, and the fulcrum shaft is engaged with the dust case. A transmission body having a long hole having an inclined surface and a rack for engaging with the pinion is provided so as to be movable in the vertical direction, and the transmission body is positioned in the dust case near a handle formed on the dust case. A vacuum cleaner characterized by having an operation part that engages and disengages the vacuum cleaner.