JPS60137338A - 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 Field of the Invention The present invention relates to a vacuum cleaner equipped with a check valve having a divided valve.

Conventional Structure and Problems Conventionally, in vacuum cleaners equipped with check valves with separate valves, the valve of the check valve has been designed to reduce the force of attachment and detachment between the hose and the vacuum cleaner body. I was there. However, if the valve is too thin, you can easily operate it when attaching the hose, but if the valve is too thin, the valve will get tangled with the hose, making it difficult to remove it, so there may be errors in the wall thickness of the valve. 2. Strict manufacturing control.

The drawback was that it needed to be done.

That is, in the conventional check valve shown in FIG.
Since the hose 15 is thin, when an attempt is made to pull out the hose 15 from the main body 1, the valve 19 becomes entangled with the hose 15, making it impossible to pull out the hose 16. This is hose 1
This is because the valve 19 is made thinner in order to weaken the mounting force of the valve 19, which increases the contact resistance between the valve 19 and the hose 15, which causes the valve 19 to become entangled with the hose 16.

Purpose of the Invention The present invention eliminates these conventional drawbacks, and aims to provide a protrusion on the valve of a check valve so that the hose can be attached and detached smoothly even if the valve is made thin. do.

Structure of the Invention The present invention facilitates attachment and detachment of a hose by providing a divided thin-walled valve with a protrusion inclined toward the outer circumference of the valve.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1, 2, and 3, 1 forms a dust suction chamber 2 with an upward opening on the front side, and this dust suction chamber 2 and a compartment 3
There is a fan case 4 for dust suction in the rear room separated by
This is a subject case with . A handle portion 5 is integrally formed at the upper front end of the main body case 1, moving rollers 6 are attached to the lower rear end, and caster rollers 7 are attached to the bottom surface. The fan motor 4 is supported at the front by the compartment 3 through a support 8.9 made of an elastic material such as rubber, and by a rib 10 raised from the main case 1 at the rear. The upper part of the fan motor 4 is covered by a case cover 12. The rear part of the case cover 12 is hooked on the protrusion 11 of the main case 1, and the front part is integrally connected to the main case 1 by tightening screws. There is.

Further, an operation button 13 is attached to the case cover 12 to automatically wind up the cord in conjunction with a cord reel unit (not shown). Reference numeral 14 denotes a front cover whose holes are mated with a boss protruded from the main case 1, and whose upper end is integrally fixed with screws. This front cover 14 has a connection hole 17 for connecting a hose 15, and is made of an elastic material such as rubber and has a backing function with an opening connected to the connection hole 17. The stop valve 18 is clamped by pressure. This check valve 18 has a thin and divided valve element 19 formed therein. This valve element 19 has an apex portion 20 located inside the inner diameter of the hose 16, and the valve element 19
A protrusion 22 having an inclined portion 21 toward the outer circumferential direction is provided, respectively. 23 is a lid that covers the upper part of the dust suction chamber 2, and a protrusion 2 on the rear side is inserted into a hole 24 provided in the case cover 12.
5, and the front side is removably attached to the main case 1 by engaging a claw part (not shown) having an elastic body with a tail part provided on the main case 1. Reference numeral 27 denotes a dust collection bag having a filter function for capturing dust, and a mouth frame 28 made of cardboard or the like is integrated by adhesive or the like.

The lid 23 has a display mechanism 5, which indicates when the dust collection bag 2 is full with a pointer 29. 30 is built-in. A backing 31 is press-fitted around the entire upper end surface of the main case 1, a backing 32 is integrally held at the front end of the case cover 12, and the lid 20 maintains airtightness. A suction hole 33 is provided in the compartment 3 of the dust suction chamber 2, and this suction hole 33 has a built-in secondary filter 34 made of non-woven fabric, etc., and is also implanted with ribs to prevent the dust collection bag 27 from coming into close contact with the suction hole 33. Standing frame 3
5 is detachably attached by claw engagement.

Furthermore, a rib 16 is provided at the bottom of the dust suction chamber 2 and has a holding portion 36 for positioning the lower end of the zero frame 28.

In the above configuration, the dust sucked by the engine motor 4 through the hose 16 passes through the front cover 14 and the check valve 18, and is collected in the dust collection bag 27, and only clean air is discharged from the exhaust hole.

To attach the hose 15 to the main case 1 via the front cover 14, as shown in FIGS. 4 and 5, when inserting the hose 15 into the front cover 14,
The end surface of the hose 15 contacts an inclined portion 21 of the protrusion 22 of the valve element 19 located inside the inner diameter of the hose 16 . When the hose 15 is further inserted, the valve element 19 of the check valve 18 rotates in the entry direction, and the apex 20 of the protrusion 22 of the valve element 19 comes into contact with the outer periphery of the hose 16. The contact between the W element 19 and the hose 16 is made at the inclined part 21 located toward the outer circumference of the check valve 18 from the apex 2o of the protrusion 22, so that the hose 15 is light along the inclined part 21. It is inserted into the main case 1 with a small pressing force. Also, when pulling out the hose 15, the valve element 190 apex 20 and the hose 16
Since the outer periphery of the hose comes into contact with the hose, there is a point contact between the two, and the hose can be easily pulled out at this time as well.

Effects of the Invention As described above, according to the present invention, by using a check valve provided with a valve element, it becomes easy to insert and remove a hose, thereby making it easier to use.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a vacuum cleaner according to an embodiment of the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a front view of a check valve in the vacuum cleaner, and Figs. 4 and 5. is a cross-sectional view of a portion where the same check valve is installed, and No. 61 is a cross-sectional view of a portion where a conventional check valve is installed. 18... Check valve, 19... Valve element, 2
1... Slanted part, 22... Protrusion part. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 Figure 4 - Figure 5 Figure 6

Claims (1)

[Claims] A vacuum cleaner comprising a check valve provided at a hose connection port, a thin and divided valve element formed on the check valve, and an outwardly inclined protrusion provided on the valve element.