JPH0711735Y2 - Dust bag for vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a dust bag for an electric vacuum cleaner (hereinafter referred to as a dust bag), and more particularly to a dust bag having an opening / closing lid portion.

[Conventional technology]

Various proposals have hitherto been made for a dust bag having an opening / closing lid in the dust collecting hole of the mount, for example, Japanese Patent Laid-Open No. 62-109533 discloses a dust collecting hole for the mount as shown in FIG. The dust collecting bag provided with an elastic lid inside the position, the dust collecting bag in which a part of the mount is extended and the part can be bent as shown in FIG. As shown in FIGS. 3 and 4, there is described a dust collecting bag in which a lid portion for opening and closing the dust collecting hole is integrally provided in a portion of the dust collecting bag body facing the dust collecting port of the mount. Each of these dust collecting bags is provided with a means for closing the dust collecting holes of the mount in order to prevent the dust from scattering when the dust is thrown away.

[Problems to be solved by the invention]

However, recently, vacuum cleaners of the type that take out the backing of the dust collecting bag facing down have become commercially available. In this type of vacuum cleaner, after the dust collection work is completed, the main body of the vacuum cleaner is opened, and the dust collection bag is pulled up and taken out, but at this time the mount is located below the bag body. , For example, in the case of a dust bag of a type in which the dust collecting hole is closed after the bag body is removed from the cleaner body like a dust collecting bag integrally provided with a lid portion for opening and closing the dust collecting hole in the bag body, dust is collected from the dust collecting hole. Will spill.

Further, in the dust collecting bag shown in FIGS. 7 and 8 of JP-A-62-109533, it is necessary to provide a lid body or a part of a mount which is a separate component and to extend the material. The manufacturing process also has the drawback of being expensive.

The present invention has been made to solve the above problems, and has an opening / closing lid part having a non-return valve function, and dust is removed even when it is removed from the vacuum cleaner with the dust collection hole facing downward. The purpose is to provide an inexpensive dust bag that does not spill.

[Means for solving problems]

In order to solve the above problems, the dust collecting bag of the present invention is a dust collecting bag for an electric vacuum cleaner in which a mount having dust collecting holes is fixed on one wall surface of a bag body made of two layers of filter paper. ,
The wall of the bag body connected to the mount is provided with a cutout along the outer side of the dust collecting hole of the mount to leave a part of the periphery in the direction perpendicular to the fiber direction of the filter paper. An opening / closing lid portion is formed, and in the opening / closing lid portion, the inner and outer paper layers are bonded in a plurality of linear shapes orthogonal to the hind portion.

[Action]

According to the present invention, since the opening / closing lid part having the proper rigidity and elasticity and the non-return valve function is formed on a part of the wall of the bag body by the above-mentioned structure, the dust collecting hole is immediately formed after the suction is finished. It is automatically closed, dust does not spill even if it is removed from the vacuum cleaner with the dust collection hole facing downward, and it is cheaper in terms of material than the conventional one with a lid part. And, it can be easily automated.

〔Example〕

Hereinafter, an embodiment of the dust bag of the present invention will be described in detail with reference to the drawings, but the present invention is not limited thereto.

1 is a perspective view of a dust bag according to an embodiment of the present invention in an inflated state, FIG. 2 is a sectional view taken along the line AA 'in FIG. 1, and FIG. 3 is a cross-sectional view of FIG. For convenience of explanation, only the position of the dust collecting hole 2a of the mount is filled in with a dotted line for the sake of explanation in a plan view in which the mount 2 of the dust bag is removed.
In the figure, symbol 1 is a bag body, 1a is a front wall of the bag body, 1b is a back wall, 2 is a backing sheet, 2a is a dust collecting hole of the backing sheet, 11 is an inner layer paper, 12 is an outer layer paper, 13 is a notch, 14 Is a lid part, 15 is a hinge part, and 16 is an adhesive strip. The arrow in FIG. 1 indicates the fiber direction of the filter paper.

The dust collecting bag of the present embodiment is composed of two inner and outer layers of filter paper 11, 12 and has a tubular body having pleats on both sides, and a front wall 1a of a bag body 1 formed by closing upper and lower ends thereof. The mount 2 having the dust collecting holes 2a is fixed. The front wall 1a of the bag body 1 connected to the mount 2 is provided with a notch 13 along the outside of the dust collecting hole 2a of the mount 2 to form an opening / closing lid 14. The notch 13 is formed in a U-shape in the direction perpendicular to the fiber direction of the filter paper, leaving a part of the periphery, and the uncut portion 15 serves as the hinge portion of the opening / closing lid portion 14. And the notch 13 is the mount 2
It is provided along a position spaced from the outer circumference of the dust collection hole 2a by a suitable distance, preferably a position spaced by 3 mm or more. In the opening / closing lid part 14, a plurality of adhesive strips 16 which are orthogonal to the hind part 15 are provided between the inner layer paper 11 and the outer layer paper 12 constituting the bag body.
The opening / closing lid portion 14 including the hinge portion 15 is thereby provided with appropriate rigidity and elasticity, and exhibits a non-return valve function. The shape of the bag body 1 of the dust bag of the present invention is the first.
As shown in FIGS. 3 and 4, the bag may be other than the pleated bag whose upper and lower ends are closed, and the notch 13 may have a shape other than the U shape such as a U shape.

Next, a usage state of the dust bag of the present invention will be described with reference to FIG. FIG. 4 is a partially enlarged view of the vicinity of the dust collecting hole in the suction state in which the dust collecting bag of the present invention is attached to the dust collecting chamber of the electric vacuum cleaner. Symbols 1 to 14 in the figure are the symbols in FIGS. 21 has a suction nozzle, 22 is a packing, and 23 is a damper. When a dust bag is attached to the dust collecting chamber of the vacuum cleaner and a vacuum pump (not shown) is started, air is sucked from the suction nozzle 21, and the damper 23 is caused by the pressure.
The damper 23 opens, and the damper 23 pushes the open / close lid 14 of the dust collecting bag inward, so that dust is sent into the dust collecting bag together with air. When the dust collection work is completed and the vacuum pump is stopped, the damper 23 is closed. At this time, a decompressed state is instantaneously generated between the damper 23 and the opening / closing lid portion 14 of the dust collecting bag, and the opening / closing lid portion 14 assists in closing due to its elasticity. When the main body of the electric vacuum cleaner is opened and the dust collecting bag is taken out, even if the dust collecting hole is facing downward, the opening / closing lid part 14 is attached from the inside of the mount 2 to the dust collecting hole 2a.
To prevent dust from spilling from the dust collection hole 2a.

[Effect of device]

Since the dust bag of the present invention has a moderate rigidity and elasticity on a part of the wall of the bag body and an opening / closing lid portion having a non-return valve function is formed, the dust collecting hole is immediately formed after suction is finished. Automatically closed,
Even if you remove the dust collector from the vacuum cleaner with the dust collection hole facing down, dust will not spill out. In addition, it is not only cheaper in terms of material than the conventional one with a separate lid,
There is an advantage that it can be automatically produced by simply changing the shapes of the punching metal fittings of the dust collecting hole punching equipment and the gluing tool of the interlayer bonding equipment which are attached to the existing dust collecting bag manufacturing equipment.

[Brief description of drawings]

1 is a perspective view of a dust bag according to an embodiment of the present invention in an inflated state, FIG. 2 is a sectional view taken along the line AA 'in FIG. 1, and FIG. 3 is a plan view of the dust bag. FIG. 4 and FIG. 4 are enlarged views of the vicinity of the dust collecting hole in a suction state in which the dust collecting bag of the present invention is attached to the dust collecting chamber of the electric vacuum cleaner. In the figure, 1 ... Bag body, 1a ... Bag body front wall, 1b ... Bag body back surface, 2 ... Mounting paper, 2a ... Mounting paper dust collecting hole, 11 ... Inner layer paper, 12 ... Outer layer paper , 13 …… notch, 14 …… open / close lid, 15
...... Hinji part, 16 …… Interlayer adhesive strip, 21 …… Suction nozzle,
22 …… Patkin, 23 …… Damper

Claims (1)

[Scope of utility model registration request] 1. A dust collecting bag for an electric vacuum cleaner, comprising a base material having two layers of filter paper, and a base material having a dust collecting hole fixed on one wall surface of the main body. Forming an opening / closing lid part having a hinge part on the wall along the outside of the dust collecting hole of the mount, leaving a part of the periphery in a direction perpendicular to the fiber direction of the filter paper, and forming the opening / closing lid part. A dust collecting bag for an electric vacuum cleaner, characterized in that, in the lid portion, the inner and outer paper layers are adhered in a plurality of linear shapes orthogonal to the hinge portion.