JP-7856815-B1 - vacuum cleaner

JP7856815B1JP 7856815 B1JP7856815 B1JP 7856815B1JP-7856815-B1

Abstract

[Problem] To provide an electric vacuum cleaner that can effectively utilize the filter material of a dust collection bag. [Solution] The electric vacuum cleaner comprises a vacuum cleaner body 14, an electric blower 10, a suction pipe section 140, a dust collection chamber 1410, a plurality of support sections 141320, and a notch 141321. The electric blower 10 is located on the vacuum cleaner body 14. The suction pipe section 140 is provided on the vacuum cleaner body 14 and connected to an air passage. The dust collection chamber 1410 is provided on the vacuum cleaner body 14 and a dust collection bag 110 can be attached and detached to it so that the inlet opening 11000 communicates with the suction pipe section 140. The support section 141320 is formed extending in the front-rear direction from the bottom 14132 of the dust collection chamber 1410 and supports the filter material 1101 of the dust collection bag 110 that has expanded in the dust collection chamber 1410. The notch 141321 is formed on the support section 141320. [Selection Diagram] Figure 1

Inventors

大津育弘
市川洋光
山谷直輝

Assignees

美的集団股▲フン▼有限公司

Dates

Publication Date: 20260511
Application Date: 20250509

Claims (5)

A vacuum cleaner that uses a dust collection bag having an inlet opening and a bag-shaped filter material communicating with the inlet opening, The vacuum cleaner body and This vacuum cleaner unit has an electric blower, The vacuum cleaner body is provided with a suction pipe section to which an air duct is connected, The vacuum cleaner body is provided with a dust collection chamber on which the dust collection bag can be attached and detached, such that the inlet opening communicates with the suction pipe section. A plurality of support parts are formed at the bottom of this dust collection chamber, extending in the front-to-back direction, to support the filter material of the dust collection bag that is expanded in the dust collection chamber, These support parts are equipped with notches formed in them , The suction pipe section has a connecting pipe section located downstream of the upstream end, The axis of the connecting pipe section intersects with the axis of the upstream end of the suction pipe section, and during operation, intersects with the lower part of the dust collection bag facing the support portion of the filter material of the dust collection bag without passing through any obstacles, through the inlet opening of the dust collection bag installed in the dust collection chamber. The operation of the electric blower creates a flow path that wraps around the side of the filter material towards the lower side, in front of the notch and behind the inlet opening. A vacuum cleaner characterized by the following features .
The electric vacuum cleaner according to claim 1, characterized in that the axis of the upstream end of the suction pipe section, the imaginary line perpendicular to the opening surface of the inlet opening of the dust collection bag mounted in the dust collection chamber, and the axis of the electric blower are parallel or substantially parallel to each other.
The wall portion forming the downstream part of the dust collection chamber, Ribs rising from the bottom of the dust collection chamber along this wall, The electric vacuum cleaner according to claim 1, characterized by comprising the following features.
The dust collection bag has a retaining plate on which the inlet opening is formed, The suction pipe section is equipped with a sealing member located at the downstream end of the suction pipe section, The sealing member is The dust collection bag attached to the dust collection chamber has an annular sealing portion that is in close contact with the peripheral edge of the inlet opening relative to the holding plate, The vacuum cleaner according to claim 1, characterized by having a check valve with the upper part of the seal as a pivot point.
The vacuum cleaner body has a gripping part for gripping operation, The electric vacuum cleaner according to claim 2 , characterized in that the upper surface of the air passage connected to the suction pipe and the upper surface of the vacuum cleaner body including the gripping portion are arranged in a substantially straight line.

Description

Embodiments of the present invention relate to a vacuum cleaner equipped with a dust collection chamber on which a dust collection bag can be attached and detached. Conventionally, there are stick-type electric vacuum cleaners that use a long, rectangular vacuum cleaner body with a grip at one end, to which an extension tube and suction attachment are connected at the other end. In stick-type electric vacuum cleaners, when a paper bag is used in the dust collection section, it is preferable to make the bag rectangular around the dust-containing air inlet, both for manufacturing purposes and to ensure the filter material opens completely with the introduced dust-containing air. If the extension tube is in a straight line with the vacuum cleaner body, the inlet portion from the extension tube to the dust collection bag must be inclined to secure sufficient dust collection volume. Therefore, the dust collection bag must also be positioned to be inclined along the inclination of the inlet portion in order to introduce dust-containing air to the center of the dust collection bag. As a result, dead space is created in the front lower and rear upper parts of the dust collection chamber where the dust collection bag cannot be placed, and the increased weight and size of the vacuum cleaner body reduce the ease of cleaning. Japanese Patent Publication No. 2024-73288 This is a perspective view showing the inside of the dust collection chamber of one embodiment of an electric vacuum cleaner.A longitudinal cross-sectional front view showing the same vacuum cleaner.This is a perspective cross-sectional view showing a part of the same electric vacuum cleaner.This is an exploded perspective view showing the same vacuum cleaner.This is a central cross-sectional view showing a magnified portion of the same vacuum cleaner.This is a central cross-sectional view showing the same electric vacuum cleaner.This is a perspective view showing the same electric vacuum cleaner. The following describes one embodiment with reference to the drawings. In Figure 7, 1 represents an electric vacuum cleaner. The electric vacuum cleaner 1 is a suction vacuum cleaner that cleans by sucking up dust and air into the dust collection unit 11 using the operation of an electric blower 10. The operation, or operating state, of the electric vacuum cleaner 1 is set by the user via an operation switch 12, and a control unit 13, such as a microcomputer, controls the electric blower 10, etc., according to the operation input to the operation switch 12. In this embodiment, the electric blower 10, dust collection unit 11, operation switch 12, and control unit 13 are arranged in the vacuum cleaner body 14. The vacuum cleaner 1 of this embodiment can be used as a stick-type or handheld vacuum cleaner by connecting an air duct 15 to the vacuum cleaner body 14 as needed. The air duct 15 has, for example, an extension pipe 150 which is a straight pipe section, and a suction tool 151, also called a suction port or suction head. The user can arbitrarily select between using the vacuum cleaner 1 as a stick type using the extension pipe 150 and the suction tool 151, or using the vacuum cleaner 1 as a handheld type using the suction tool 151 or without using the air duct 15. In this embodiment, the vacuum cleaner 1 is a cordless type powered by a battery 16, such as a secondary battery. That is, in the vacuum cleaner 1 of this embodiment, the electric blower 10 and control unit 13 can operate by power supplied from the battery 16. As shown in Figure 6, the vacuum cleaner body 14 is formed in a longitudinal shape. Hereinafter, the longitudinal direction of the vacuum cleaner body 14 is defined as the front-to-back direction, and the directions perpendicular to it are defined as the up-down and left-to-right directions. In the figure, the front direction is indicated by arrow FR, the rear direction by arrow RR, the up direction by arrow U, the down direction by arrow D, the left direction by arrow L, and the right direction by arrow R. Note that in the operating state of the electric vacuum cleaner 1, for example as shown in Figure 7, the longitudinal direction of the vacuum cleaner body 14 may be inclined relative to the area being cleaned, depending on the position of the area being cleaned. Therefore, these front-to-back, up-down, and left-to-right directions do not necessarily coincide with the directions in the operating state of the electric vacuum cleaner 1. As shown in Figures 4 to 6, the vacuum cleaner body 14 is arranged from front to rear in the following order: suction pipe section 140, main body section 141, and grip section 142. The air passage 15 (shown in Figure 7) is detachable from the suction pipe section 140, the main body section 141 houses the electric blower 10, dust collection section 11, and control unit 13, etc., and the battery 16 is detachable. An operation switch 12 is located on the grip section 142. The suction pipe section 140 is located a