JPS6227912A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field 1- The present invention relates to a vacuum cleaner suitable for collecting fine particles. ~101 J, specific gravity approximately 03-0.4cm3).

(b) Conventional technology This type of vacuum cleaner currently on the market has a dust collection chamber constructed by wrapping a glass wool laminate in paper, or a dense filter surface such as a double layer paper filter. A bag-like dust collecting section is arranged and housed to collect fine particles such as toner (for example, see Japanese Utility Model Application Publication No. 59-93368).

However, the former type of dust collector is difficult to work with, is expensive, and is prone to leaking, while the latter type of paper filter is said to cause leakage from folded surfaces when the paper softens. There are drawbacks. As a result, there are problems in that the dust collection chamber and the electric blower become contaminated with leaked fine particles, which adversely affects performance.

(c) Problems to be Solved by the Invention The present invention collects waste toner from plain paper copying machines, and the amount of dust collected at one time is as large as 200 to 300 g, and at least 500 to 600 g of toner is collected. The condition is that the filter surface area and filter volume must be large.

Therefore, the present invention achieves the intended purpose by increasing the amount of dust suction and -) using a filter unit that is inexpensive.

(d) Means for Solving the Problems The vacuum cleaner of the present invention has a filter unit installed in the dust collection chamber of the main body, and the main part of the filter unit is made of an impermeable material and the remaining part is made of a ventilated material. The bag body is made of a breathable filter member, and the inner surface of the breathable filter member is covered from the inside with a continuous pore material via a cotton-like multilayer structure.

(e) Function With the above structure, the filter unit is inflated by the suction air flow to form a dust collection space, and fine particles such as toner are first captured by the continuous pore body, but fine particles that cannot be captured are collected by the flocculent multilayer structure. It is captured in layers in the body,
Clean air is exhausted from the breathable filter element without the fine particles being trapped and clogging the entire surface of the breathable filter element. When air suction is stopped, the filter unit shrinks, and the fine particles adhering to the inside of the bag are peeled off.1, the passing air volume recovers a little, and by repeatedly expanding and contracting in this way, a large volume of dust can be collected. can be done.

<H> Example (1) has an electric blower (2), etc. at the rear and the dust collection room with a hose connection (3> in the front.
4), a pair of rear wheels (5) (5) are attached to both rear sides of the main body, and a swivel wheel (6) is attached to the front bottom surface. The machine body (1) is composed of a bottom-shaped lower case (7) and an upper case (8) located at the rear of the lower case, and the electric blower (2) is connected to both cases (7). (8) with a buffer (not shown) interposed therebetween.

(9) is a dust collection box installed in the dust collection chamber (4) so as to be freely inserted and removed, and a suction robin (10) is attached to the front wall of the dust collection box facing the hose connection port (3). A part of the filter (1) made of polyurethane foam is installed in the opening of the rear wall that forms the suction port (11) and faces the suction port (11).
2) (1, and a secondary filter unit (13) made of non-woven paper on the back side of the secondary filter (12).
) is removably attached.

(14>) is an annular sealing gasket for the dust collecting box that is fully attached along the upper surface opening of the dust collecting box (9), and a handle portion (15) is integrally formed on the gasket.

(16) is a lid body that freely opens and closes the upper openings of the dust collection chamber (4) and the dust collection box (9), and a polyurethane foam lid shoe 25 (17) is attached to the inner surface. There is.

The rear end of this lid body (16) is connected to the main body upper case (8).
The front end is fitted with a clamping means (1).
8) to engage and disengage the front part of the lower case (7) of the main body.

(19) is a filter unit stored in the dust collection box (9) in the dust collection chamber (4), and in this filter unit (19), (20> is a main part made of styrene resin, for example. A bag body (2) made of a flexible impermeable material (21) such as vinyl chloride or polyethylene that does not migrate to the body, and the remaining part made of a breathable filter material (22).
3) is the filter member (22) of this bag (20).
This bag opening holder is attached to the bag opening at a farther position, and has a connection vibe insertion hole (24) in the center, and the connection between this bag opening holder (23) and the impermeable member (21) is A synthetic rubber pouch (26) having an opening (25) smaller in diameter than the pipe insertion hole (24) is clamped and fixed in between.

The air-permeable filter member (22) is made of a polyurethane polymer formed by sequentially laminating a dense skin, a coarse skin, a dense skin, and a base fabric, and the bag body (20) is made of a polyurethane polymer formed by sequentially laminating a dense skin, a coarse skin, a dense skin, and a base fabric. The fabric is shaped into a bag, a part of the fabric is opened, and the periphery of the air-permeable filter member (22) is welded around the opening.

(27〉 is made of polypropylene delicate cotton and has a wall thickness of approximately 1
58 is a cotton-like multi-layered structure whose size is approximately the same as the above-mentioned breathable filter member <22), and (28> is a cotton-like multilayer structure made of open-cell polyurethane foam with a wall thickness of about IQ mm and a dog-like shape. (22) is a continuous pore covering body larger than
28) and the left and right edges (28aH28b) of the continuous pore covering body (28>) and the lower edges (28c) and (28d) of -L with a double-sided adhesive hoop (29).
It is attached and fixed to the impermeable member (21) by means of the following.

In addition, this adhesion fixation is carried out on the left and right edges (28a) (28b) if the cotton-like multilayer structure (27) is held in a good state.
Only 0 rows may be performed.

And this filter unit (19) is connected to the dust collection box (
9) Pass the tip of the connecting vibrator (30) of the hose protruding from the suction port <11> into the opening (25) of the bag [1 packing (26)] and seal it. The electric blower ( 2 ) is activated, the bag body 20) of the filter unit (19) is swollen by the suction air fAf, and the air permeable filter member (22) portion is connected to the Al1-next filter (12) side and the lid/body body. (17) side to form a -C dust collection space 4-, and capture l.ner from the continuous pore cover (28) and the cotton-like multilayer structure (27) which are sequentially laminated. Clean air is exhausted from the rear ventilation section of the vacuum cleaner body (1) through the ventilation filter section 4i't (22). At this time, the air permeable filter member (
22) Since most of the filtered air passes through the continuous pore cover (28) and the cotton-like multilayer structure (27), the surface of the filter member (22) may become clogged. There is no.

If the suction airflow stops, the filter unit h (
19) shrinks and attaches to the inner surface of the bag body (20).The tosser peels off and the passing air volume is restored, and by repeatedly expanding and contracting like J-, a large amount of dust can be collected. can be done.

In addition, Figure 3 shows the toner suction characteristics12, and in the same figure (
a) is breathability No. 1. In the case of only one router member (22), (
b) is the case of the breathable filter member (22> and the continuous pore cover (28));
22), cotton-like multilayer structure (27), and continuous pore cover (2
In the case of 8)-C, the solid line shows the case of continuous suction, and the dotted line shows the case of stopping suction every 200 grams and re-inhaling. Furthermore, according to the present invention, a large amount of toner can be collected.

(g) Effects of the invention 7. According to the invention, even if the particles are fine particles such as toner, the Vt layer is trapped in the pores in the continuous pore body and the cotton fibers in the cotton-like multilayer structure, so that A large amount of dust can be collected without clogging the breathable filter member, and by recovering the passing air volume by repeatedly expanding and contracting the bag body itself. Furthermore, since the expensive air-permeable filter member is only used in a part of the bag body, manufacturing costs can be reduced.

[Brief explanation of the drawing]

The drawings all relate to embodiments of the vacuum cleaner of the present invention.
Figure 2 is a partially cutaway side view of the entire filter unit; FIG. 3 is a toner suction characteristic diagram. (4)・Dust collection chamber, (19)・Filter unit,
<21) - Impermeable part (, (22) Breathable filter member, (27) - Cotton-like multilayer structure, <28)
Continuous pore cover.

Claims (3)

[Claims] (1) In a device in which a filter unit is installed inside the dust collection chamber of the main body, the filter unit is a bag body whose main part is made of an impermeable member and the remaining part is made of a breathable filter member, and the filter unit is a bag made of a breathable filter member. A vacuum cleaner characterized in that the inner surface of the vacuum cleaner is covered from the inside with a continuous pore material via a cotton-like multilayer structure. (2) The vacuum cleaner according to claim 1, wherein an edge of the continuous pore body is fixed to the impermeable member. (3) The vacuum cleaner according to claim 1, wherein the air permeable filter member is made of a polyurethane polymer in which a dense skin, a coarse skin, and a dense skin are sequentially laminated.