JPS5820215Y2 - vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum cleaner, and more particularly to a support structure for a pressing plate that compresses dust captured and deposited in a dust collection case.

Conventional vacuum cleaners of this type have to discard the dust when the dust trapped and accumulated inside the dust collection case reaches the internal volume of the dust collection case. A method of compressing dust by providing a pressure plate was also developed, but this had the disadvantage that the pressure plate interfered with the inhalation of dust.

The present invention was developed in view of the above-mentioned drawbacks, and a pressing plate that can be rotated in the left and right directions with respect to the suction opening is provided inside the dust collection case, so that dust can be pressed and compressed, thereby increasing the amount of dust collected.
Furthermore, this pressing plate is pressed against the top plate by a coil spring, and both ends of this coil spring are locked to the dust collection case and the pressing plate, so that the pressing plate is elastically supported by the coil spring and the dust is collected through the coil spring. The press plate is engaged with the case and is always positioned on the center line of the suction opening to prevent accidental rotation.

Next, the configuration of an embodiment of the present invention will be explained with reference to the drawings.

Reference numeral 1 denotes a vacuum cleaner body, which is composed of an upper case member 2 and a lower case member 3 coupled to the upper case member 2.

Further, in the front part of the main body 1, an arrangement part 5 for the rotary brush 4 is formed in a cylindrical shape with the left-right direction as the axial direction, and an opening part 6 is formed in the lower part of this arrangement part 5. The tips of the brushes 7 of the rotary brush 4 rotatably mounted on the arrangement portion 5 protrude.

Further, a dust collection case storage section 8 is formed at the rear of the main body 1 adjacent to the installation section 5, and this installation section 5 and the dust collection case storage section 8 have a shape that follows the brush 7 of the rotary brush 4. It is partitioned off by an arc-shaped partition wall 9.

A suction port 10 is formed in an upwardly facing surface of the partition wall 9.

Further, a mounting opening 11 for opening and closing the dust collection case storage section 8 is formed on the upper surface of the main body 1.

Further, a clamp locking portion 12 is formed at the front edge of the mounting opening 11, and a locking protrusion 13 is formed at the rear edge.

Further, at the rear of the main body 1, there is an electric power chamber 1 separated by a partition wall 14.
5 is formed, and an electric blower 16 is disposed in this electric chamber 15, and the suction side of this electric blower 16 is connected to the partition wall 14.
The discharge side of the electric blower 16 is connected to a suction port 17 formed in the main body 1 in an airtight manner.
is communicated with.

Furthermore, a gear 20 is mounted on the rotating shaft 19 of the electric blower 16.
A timing belt 22 having teeth on the inside is passed between the rotating brush 4, a gear 21, and a timing belt 22 having teeth inside.

Further, as shown in FIG. 3, an overcurrent detector 23 is inserted into the power supply circuit of the electric blower 16, which shuts off the circuit when an overcurrent occurs.

In FIG. 3, 50 is a manual switch.

Next, 24 is a dust collection case, and the dust collection case storage part 8 of the main body 1
The dust collection case 24 is removably attached to the housing through the attachment opening 11, and the front surface of the dust collection case 24 has an arcuate surface 25 along the front partition wall 9.
The suction port 10 is formed on the downward facing surface of the arcuate surface 25.
A suction opening 26 is formed facing downward, and a backing 27 is attached to the suction opening 26 in close contact with the periphery of the suction opening 10 to maintain the suction opening 26 and the suction opening 10 airtight.

Also, the opening 2 on the back filter 28 side of this dust collection case 24
A backing 31 attached to the support frame 30 of the filter 28 is airtightly and removably attached to the support frame 30 of the filter 28, and the backing 31 is in airtight contact with the support frame 30 of the filter 28 around the suction port 17 of the rear partition wall 14 to form a dust collection case. A backing 32 is provided that connects the electric blower 23 to the suction side of the electric blower 16 in an airtight manner.

Further, reference numeral 33 denotes a pressing plate, which is a plate material inserted vertically into the approximately front half of the dust collection case 24 so as to divide the suction opening 26 into left and right halves.
The shape is close to the upper surface, lower surface, and inner wall of the front arcuate surface 25 of 4.

Further, a recess 35 that bulges inward is formed approximately at the center of the top plate 34 of the dust collection case 24, and a knob 36 for operation is fitted into this recess 35, and a knob 36 protrudes downward from the knob 36. The provided knob shaft 37 is rotatably attached to the top plate 34, and the upper end of the mounting portion 38 protruding from the upper rear of the press plate 33 is clamped and fixed at the lower end of the knob shaft 37 passing through the top plate 34. and top plate 3
An elastic backing 49 is interposed between the mounting portion 4 and the mounting portion 38.

Also, from the lower end of the mounting portion 38, the protruding shaft 3 coaxial with the knob shaft 37
9 is provided protrudingly, and its lower end is pivoted to the bottom plate of the dust collection case 24.

Further, a coil spring 40 guided by the protruding shaft 39 is stretched between the lower end of the mounting portion 38 and the bottom plate of the dust collection case 24, and one end of this coil spring 40 is engaged with the engaging portion 41 of the pressing plate 33. , the other end is connected to a spring receiver 4 formed on the bottom plate of the dust collection case 24.
2, and the press plate 33 is always engaged with the notch 43 of the top plate 3.
4 and positioned on the center line dividing the suction opening 26 into left and right sides.

Further, a clamp 44 that is locked to the clamp locking part 12 is provided at the front part of the dust collection case 24, and a locking protrusion 13 is provided at the rear part.
A retaining step portion 45 is formed to be engaged with the retaining step portion 45.

The main body 1 is provided with a front wheel 46 and a rear wheel 47, and an operating rod 48 is rotatably attached to the rear part.

Next, the operation of this embodiment will be explained.

The dust collection case 24 is attached through the attachment opening 11 of the main body 1.

At this time, the engaging step portion 45 is engaged with the locking protrusion 13 to lock the clamp 44 to the clamp locking portion 12.

In this state, the suction opening 26 of the dust collection case 24 is connected to the suction port 10.
The filter 28 side is airtightly communicated with the suction side of the electric blower 16 via the backing 31 and 32 of the support frame 30.

Then, hold the main body 1 on the surface to be cleaned, such as a carpet, and press the operating lever 48.
When the electric blower 16 is driven at the same time, the rotary brush 4 is rotated via the gears 20 and 21 and the timing belt 22, and the dust adhering to the surface to be cleaned is separated. Dust is sucked by the electric blower 16 and introduced into the dust collection case 24 through the suction port 10 from the opening 6 of the main body 1 and into the dust collection case 24 through the suction opening 26 of the dust collection case 24.The dust is captured by the filter 28, and the dust is collected. dust case 2
4.

Further, the filtered air is exhausted from the discharge port 18 via the electric blower 16.

In addition, when the rotating brush 4 gets caught in a large foreign object (string, washcloth, socks, etc.) on the surface to be cleaned, the rotating brush 4 locks, and at the same time the electric blower 16 is locked, and the generated overcurrent causes the electric blower 16 to lose its power supply. The overcurrent detector 23 inserted into the circuit operates to cut off the power supply circuit, and the electric blower 1
6 is stopped to prevent overheating due to idle rotation of the electric blower 16.

In addition, the pressing plate 33 inside the dust collection case 24 is always connected to the coil spring 4.
0 and is held at a position dividing the suction opening 26 into left and right halves, and furthermore, due to the elasticity of the coil spring 40, the mounting portion 38
is pushed up and attached to the top plate 3 via the elastic backing 49.
4 and prevents it from tilting due to collisions with inhaled dust or air currents.

Furthermore, the elastic backing 49 prevents air from leaking from the knob shaft 37.

Next, when the operating knob 36 is rotated left and right when dust has accumulated in the dust collection case 24, the pressing plate 33 is pressed against the coil spring 4.
0, the dust on the left and right sides is compressed backward, and is compressed and deposited on the front side of the filter 28.

In this state, a space is formed on the suction opening 26 side of the dust collection case 24, and is prepared for the next dust collection.

Further, when the operating knob 36 is released, the pressing plate 33 returns upwardly again to the central position dividing the suction opening 26 into two by the restoring force of the coil spring 40.

The dust compressed to the filter 28 side performs a fine dust filtration action to prevent the filter 28 from clogging.

According to the present invention, a pressure plate that faces the suction opening and rotates in the left-right direction is provided in the dust collection case, so that by rotating the pressure plate, the dust is compressed and the dust is collected inside the suction opening. It can shape the space and increase the amount of dust collected.

In addition, the pressing plate is pressed by a coil spring and crimped to the top plate, and both ends of the coil spring are engaged with the dust collection case and the pressing plate, but when the pressing plate is not in use, it is engaged with the dust collection case via the coil spring. Since it is crimped to the top plate of the dust collection case with a coil spring, it prevents air leakage and does not inadvertently swing or tilt from side to side, and is always in a position that divides the suction opening into two equal parts to the left and right. Since it is held, it is possible to prevent dust from being drawn to one side.

In addition, when in use, by rotating the operation knob left and right, it can be rotated left and right against the elasticity of the coil spring to compress dust, and when the external force applied to the knob is released, the dust is automatically sucked in. It can be returned to the center of the opening.

[Brief explanation of drawings]

FIG. 1 is a plan view of a vacuum cleaner showing an example of the implementation of the present invention, FIG. 2 is a longitudinal sectional side view of the same, and FIG. 3 is a power supply circuit diagram. 1...Vacuum cleaner body, 6...Suction port, 8
...Dust collection case storage section, 16...Electric blower, 17...Suction vent, 24...
Dust collection case, 26... Suction opening, 28...
...Filter, 33...Press plate, 34...
...Top plate, 36...Knob, 39...
Protruding shaft, 40...Coil spring.

Claims (1)

[Scope of utility model registration request] A vacuum cleaner body having a suction port and a built-in electric blower for sucking dust from the suction port, and a dust collection case storage portion formed between the suction port and the suction side of the electric blower, and the vacuum cleaner body. a dust collecting case which is removably housed in a dust collecting case housing part and has a suction opening communicating with the suction port and a filter is attached to a communicating part with the suction port side of the electric blower; A pressing plate having a knob that can be rotated in the left-right direction facing the suction opening is provided approximately in the center of the dust collection case, and both ends of a coil spring are wound around a protruding shaft that rotatably supports the pressing plate. A vacuum cleaner is characterized in that a pressing plate is locked to a pressing plate and the dust collecting case, and the pressing plate is pressed into contact with an upper surface plate of the dust collecting case by the coil spring.