JPH088U - Electric vacuum cleaner - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to effectively and fully utilize the entire space inside the paper bag filter that is expanded in the dust collection chamber for collecting dust. [Structure] The axial direction of the opening end of the dust inflow port 30 in the dust collection chamber 8 is formed so as to face obliquely rearward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric vacuum cleaner in which a paper bag is attached to a dust collecting chamber having an upper opening and used.

[0002]

[Prior art]

 Conventionally, as an electric vacuum cleaner using a paper bag, as shown in Japanese Patent Application Laid-Open No. 55-129024, a bag-like filter whose mouth is inserted into an air inlet or a container which utilizes the gravity of dust is used. The filter is placed so that its opening faces upward, or the opening of the container-shaped filter faces upward, and a space for guiding air is provided in the filter, and the space is approximately horizontal. There was one that had an intake port that let air flow in.

[0003]

[Problems to be solved by the device]

 However, in the conventional vacuum cleaner, the dust inlet is a dust inlet that introduces the dust sucked into the dust collecting chamber through the hose connection port provided in the lid that covers the dust collecting chamber. Since it opens toward the bottom, the dust that has flowed into the dust collection chamber from the dust inlet, that is, the paper bag filter that has been expanded into the dust collection chamber, collides with the bottom surface of the dust collection chamber at high speed. Become. Therefore, the inhaled dust will start to accumulate from the bottom of the paper bag filter, which is spread in the dust collection chamber, facing the dust inlet, so that the dust will be concentrated and collected near the entrance of the paper bag filter. Even though there is still space on the bottom and sides away from the inlet, dust overflows from the inlet of the paper bag filter, and it is no longer possible to continue suctioning dust, and the entire space inside the paper bag filter is covered by dust collection. Therefore, there was a problem that it was not effective and could not be fully utilized.

An object of the present invention is to provide an electric vacuum cleaner that can effectively and sufficiently utilize the entire space inside the paper bag filter that is expanded in the dust collection chamber for collecting dust.

[0005]

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention has a dust collecting chamber having an upper surface opening formed in a front portion in a front and rear direction in which an electric blower is housed in a rear portion. A cleaner body, a dust collector with an upper opening accommodated in the dust collecting chamber, a lid body that automatically closes the upper opening of the dust collecting chamber and has a hose connection port, and the dust collecting body And a substantially plate-shaped support plate that holds the mouth plate of the paper bag filter that is expanded to the upper opening, and is a bottom of the cleaner body that forms the dust collection chamber and is connected to the hose connection port. The electric vacuum cleaner is characterized in that a ridge having a flat top is formed at the opposite position, and an upper surface of the ridge contacts the bottom of the dust collector.

[0006]

[Action]

 According to the present invention, by providing the raised portion, the suction airflow becomes difficult to flow in the portion of the bottom surface of the dust collector that is in contact with the raised portion because the raised portion blocks the air flow. Therefore, the airflow that has flowed into the dust collection chamber through the dust inlet is dispersed to the left, right, front, and rear without colliding with the raised portion. Therefore, dust is not initially accumulated near the inlet of the expanded paper bag filter, and is dispersed along with the airflow and accumulated from other bottom and side surfaces, especially the space on the side of the electric blower. A space will remain near the entrance until the end of the day, and dust suction can be continued, making it possible to effectively and fully utilize the entire space inside the paper bag filter.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a vacuum cleaner main body having front and rear long wheels 2 and 3. An electric blower chamber 4 containing an electric blower 5 is provided at a rear portion of the cleaner main body 1, and a dust collection from an upper opening 7 is provided at a front portion. A chamber 6 is formed. The upper surface opening 7 of the dust collection chamber 6 is an inclined surface having a low front. A box-shaped dust collector 8 is airtightly mounted in the dust collection chamber 6 by a packing 9 at the opening edge, and in this embodiment, has a filter 10 on the bottom surface. A support boss 11 and a rotating support plate 12 are formed at the edge of the opening of the dust collecting body 8. The paper bag filter 13 is housed in the dust collecting body 8 and the hole of the mouth plate 14 of the paper bag filter 13 is formed. And its ends are placed so as to match the support boss 11 and the support plate 12. Reference numeral 15 denotes a lid, which has a hose connection port 16 on the front side and a hinge part 17 on the rear side, and the hinge part 17 is axially supported by a shaft 18 in the central part of the cleaner body 1 for opening and closing, and a spring 19 is provided. It is always urged to open. Reference numeral 20 denotes a back plate fixed to the lid body 15. When the lid body 15 closes the dust collection chamber 6, it is pressed against the packing 9 to keep airtight with the dust collection body 8 and at the periphery of the dust inflow port 30. The hose connection port 16 and the mouth plate 14 of the paper bag filter 13 are communicated with each other by the annular packing 21 provided. Reference numeral 22 is a clamp provided at the front of the main body, which has an operating portion 23 having a width wider than the diameter of the hose connection port 16 and a locking concave portion 24, and is locked by a locking projection 25 of the lid body 15, so that the lid body 15 is It is designed to be locked.

A raised portion 31 is formed at the bottom of the cleaner body 1 forming the dust collection chamber 6 and at a position facing the dust inlet 30. This raised portion 31 is formed integrally with the main body 1, and its upper surface is formed in a planar shape. The upper surface of the raised portion 31 is in contact with the bottom of the dust collector 8. Further, the outside of the raised portion 31 is a concave portion, and this concave portion serves as a mounting portion for the wheel 2.

In such a structure, when the hose 26 is connected to the hose connection port 16 of the lid body 15 as shown in FIG. 2 and the electric blower 4 is driven, dust-containing air is sucked in through the hose 26 and the connection port 16. The dust is filtered by the paper bag 13, passes through the filter 10, and the purified air passes through the electric blower chamber 4 and is discharged into the atmosphere.

The dust that has flowed into the dust collection chamber 6 through the dust inlet 30 is dispersed by the ridges 31 together with the airflow that is dispersed to the left, right, front, and rear, and the ridges 31 of the dust collector 8. Initially, it does not accumulate on the bottom surface near the contacting entrance, but accumulates on other bottom surfaces and side surfaces that are not in contact with the raised portion 31, that is, apart from the entrance. When dust suction is continued, the bottom and side surfaces of the paper bag filter 13 away from the entrance of the entire space become full, gradually begin to accumulate near the entrance, and finally fill up to the entrance. By thus providing the raised portion 31, the entire space inside the paper bag filter 13 can be effectively and sufficiently utilized for collecting dust.

When the paper bag filter 13 becomes full and the dust is thrown away, it is not necessary to remove the hose 26, and the operation portion 23 of the clamp 22 is operated by holding the hose 26 in the hand, and the locking recess 24 is locked by the locking projection 25 of the lid 15. When it is opened, the lid 15 is opened by the spring 19 with the shaft 18 as the center of rotation. At that time, since the clamp 22 is located below the hose 26, it is difficult to operate the clamp 22, but the width of the operating portion 23 is wider than the diameter of the hose connection port 16, that is, the outer diameter of the hose 26. Easy to operate.

Next, the operation of taking out the paper bag filter 13 will be described. As shown in FIG. 3, the mouth plate 14 of the paper bag 13 is on the upper surface, and the top opening 7 of the dust collection chamber 6 is a frontal low inclined surface. Therefore, the open space of the lid 15 of the dust collection chamber 6 becomes large, and the paper bag filter 13 can be smoothly taken out by holding the mouth plate 14 by hand. At that time, since the mouth plate 14 faces upward, there is no concern that the full trash will spill, and there is no concern that the bag will be damaged by pulling it out forcibly and spill, and it is possible to dispose of it hygienically. .

Further, since the dust collector 8 having the filter 10 is attached to the dust collecting chamber 6, normal cleaning is possible even if the user forgets to put a paper bag or intentionally cleans it. In this case, the dust can be easily removed by opening the lid 15 and taking out the box-shaped dust collector 8 upward.

[0014]

[Effect of device]

 According to the present invention, since the ridge is provided at the position opposite to the dust inlet, and the upper surface of the ridge is brought into contact with the bottom of the dust collector to make it difficult for air to flow therethrough, the suction air flow is reduced. Then, the light is dispersed in the front, rear, left, and right around the raised portion. Therefore, the inhaled dust is also dispersed and starts to accumulate from the bottom and side surfaces apart from the inlet in the entire space inside the paper bag filter, and the vicinity of the inlet accumulates in the latter half and the final stage. The entire space inside can be used effectively and sufficiently for collecting dust.

[Submission date] June 28, 1995

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

[0014]

[Effect of device]

 According to the present invention, a part of the dust collecting chamber is recessed inward to form a recess, and the caster is housed in the recess, so that the height of the cleaner main body of the cleaner main body is increased. Can be kept low.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the hose of the present invention is connected.

FIG. 3 is a perspective view showing a state in which the present invention is disposed of.

[Explanation of symbols]

 1 Vacuum cleaner body 5 Electric blower 6 Dust collection chamber 7 Top opening 8 Dust collector 12 Support 13 Paper bag filter 14 Mouth plate 15 Lid 16 Hose connection port 30 Dust inlet port 31 Raised part

[Procedure amendment]

[Submission date] June 28, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (1)

[Scope of utility model registration request] 1. A cleaner main body having an electric blower housed in a rear part thereof and a dust collection chamber having an upper surface opening defined in a front part and having a long length in the front-rear direction, and an upper surface opening housed in the dust collection chamber. Of the dust collecting body, a lid body that is capable of opening and closing the upper opening of the dust collecting chamber and has a hose connection port, and a mouth plate of a paper bag filter that can be expanded into the dust collecting body are held in the upper opening. With a substantially plate-shaped support plate, the bottom of the cleaner body that forms the dust collection chamber, and a ridge having a flat top is formed at a position facing the dust inlet that is continuous with the hose connection port, An electric vacuum cleaner, wherein an upper surface of the raised portion is in contact with a bottom portion of the dust collector.