JP3444736B2 - Dustpan - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust removing device for sweeping dust and dust on a floor surface with a broom and the like, and more particularly, along a tip edge of a dust receiving plate of a dust removing body. A sweeping blade is attached and is related to the sweeping.

[0002]

2. Description of the Related Art Conventionally, a sweeping blade is attached along the leading edge of a dust receiving plate of a dust removing body in order to smoothly store dust and dirt using a broom or the like. The method is well done.

As an example of attaching and removing the sweeping blade, there is a device disclosed in, for example, Japanese Utility Model Publication No. 3-17820. As shown in FIGS. 9 and 10 of the present application, the dust remover 1 is made of a tip plate 12 made of a soft synthetic resin and a hard synthetic resin integrally bonded to the rear edge of the tip plate 12. A pair of upper and lower rear end plates 13
It is configured to include a sweeping blade 10 having a and 13b. Upper rear end plate 13b of lower rear end plate 13a
A locking projection 14 is formed on the surface facing the and, and a locking recess 11a into which the locking projection 14 is fitted is formed on the lower surface of the entrance edge of the dust removing body 11. Then, the sweeping blade 10 inserts the entrance edge of the dust removing main body 11 between the pair of upper and lower rear end plates 13a and 13b,
By fitting the locking projection 14 into the locking recess 11a, the locking projection 14 is attached to the dust removing main body 11.

[0004]

However, in the dust remover 1, the sweep blade 10 attached to the entrance edge of the dust remover body 11 is a tip plate 12 made of a soft synthetic resin, and a rear end plate 12 is provided. A pair of upper and lower rear end plates 13 made of hard synthetic resin integrally bonded to the edge
a, 13b, and a step of forming the front end plate 12 with a soft synthetic resin and a step of forming the rear end plates 13a, 13b with a hard synthetic resin when forming the sweeping blade 10. It requires a lot of work and effort because it is necessary.

Further, the entrance edge of the dust removing body 11 is
Since it is formed relatively thin, the rear end plates 13a and 13b are formed at intervals corresponding to this, and
It is difficult to form the locking projection 14 on the surface of the lower rear end plate 13a facing the upper rear end plate 13b, and the sweeping blade 10 formed as described above has a predetermined strength. It is also difficult to maintain and keep the dust collecting body 11 attached.

The present invention has been devised under the circumstances described above, and is equipped with a sweeping blade which can be manufactured at low cost and can be attached to the dust receiving plate of the dust removing main body with a predetermined strength. The task is to provide a dustpan.

[0007]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention takes the following technical means.

That is, the dust removing device according to the present invention is a dust removing device in which a sweeping blade made of soft rubber or plastic is attached along the leading edge of the dust receiving plate of the dust removing body. A penetrating locking hole at the tip of the dust receiving plate, and a guide that communicates with this locking hole and expands from the base narrower than this locking hole to reach the tip edge of the dust receiving plate While a plurality of mounting holes consisting of holes are formed, the sweeping blade has a mounting base portion that overlaps the top surface of the tip of the dust receiving plate, and a blade edge that further extends from the tip edge of the dust receiving plate. And the back side of the mounting base has a uniform cross section that can be engaged with the locking holes in correspondence with the positions where the mounting holes of the dust receiving plate are formed, and Corresponding to the thickness of the backing plate Have a length that, and of the guide holes
It is characterized in that a plurality of locking projections each having a shaft portion having a shaft diameter larger than the width of the base portion and a large diameter portion integrally formed at the lower end of the shaft portion are formed.

According to such dust removal, the dust receiving plate of the dust removing main body is formed with a guide hole communicating with the locking hole and expanding from the base portion toward the tip end portion of the dust receiving plate. Therefore, when the sweep blade is attached along the leading edge of the dust receiving plate, the sweep blade can be easily positioned.

Further, since the base portion of the guide hole is formed to be narrower than the shaft portion and the shaft portion is formed of soft rubber or plastic, the sweep blade is attached to the dust cover. When attached along the tip edge of the receiving plate, the shaft portion is compressed in the left-right width direction toward the base portion of the guide hole, and elastically restores when inserted into the locking hole. It fits perfectly in the locking hole. That is, the sweep blade can be attached to the dust receiving plate of the dust removing body by a simple operation such as inserting the shaft portion into the locking hole from the front side of the dust removing body. At this time, since the base portion of the guide hole is formed to be narrower than the shaft portion, the movement of the shaft portion fitted in the locking hole is restricted, so that the movement in the front-rear direction is limited. The sweeping blade is firmly attached to the dust receiving plate.

Further, since the shaft portion has a length corresponding to the thickness of the dust receiving plate and a large diameter portion is integrally formed at the lower end, the shaft portion is engaged with the locking hole. The shaft portion is restricted in vertical movement by the upper surface of the large diameter portion and the lower surface of the dust receiving plate, so that the sweep blade is more firmly and stably supported by the dust receiving body of the dust removing body. Can be attached to the board.

[0012] Preferably, the mounting base and / or the blade edge are formed so that the cross-sectional shape becomes thinner toward the tip, and when the sweep blade is not attached, the tip positions of the blades are different from each other. Is formed so as to be positioned relatively lower than the lower surface of the base end portion.

According to such dust removal, the tip position of the mounting base formed so as to be positioned relatively lower than the lower surface of the base end is such that the mounting base is mounted on the dust receiving plate. It will be located at the same position as the lower surface of the base end portion of. That is, the elastic restoring force of the tip of the mounting base presses the dust receiving plate, so that the mounting base of the sweeping blade is tightly attached to the dust receiving plate of the dust removing body. Therefore, it is possible to prevent dust and dirt contained in the dust removing body from advancing from the tip edge of the mounting base between the back surface of the mounting base and the front surface of the tip of the dust receiving plate. .

Further, the tip end portion of the blade edge formed so as to be positioned relatively lower than the lower surface of the base end portion,
When the sweeping blade is grounded to the floor surface, the elastic restoring force of the tip portion presses the floor surface, so that the blade edge closely contacts the floor surface. Therefore, according to the dust removal of the above configuration, it is possible to avoid dust and dust that should be swept into the dust removal main body from advancing to the back surface side of the blade edge, and to effectively remove dust inside the dust removal main body. Can be swept away and housed with dust.

Further, preferably, the locking hole is formed in a truncated circular shape in which a portion facing the tip edge of the dust receiving plate is linear, and the cross-sectional shape of the shaft portion also corresponds to that of the locking hole. The guide hole is formed in a circular shape corresponding to the shape, and the maximum width of the guide hole is larger than the diameters of the locking hole and the shaft portion.

According to such dust removal, since the front side in the insertion direction when the shaft is attached is formed in an arc shape, it is easy to insert the shaft into the locking hole, and once again. Since the inserted shaft portion is formed in a linear shape at the portion facing the tip edge of the dust receiving plate, even if it is made of soft rubber or plastic, it is difficult to pull out. Further, since the locking hole and the shaft portion are formed in substantially the same shape, the sweeping blade is fitted into the dust receiving body by the dust receiving body so that the shaft portion fits perfectly in the locking hole. Extremely high mounting stability when mounted on a plate.

Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a fragmentary side view showing an example of a dust remover 2 according to the present invention, FIG. 2 is a side view showing a state in which a dust remover main body 20 is erected, and FIG. 3 is an overall view of the dust remover main body 20. FIG. 4 is an enlarged view of a region A surrounded by the alternate long and short dash line in FIG. 1, and FIG. 5 is a bottom view showing how the sweeping blade 21 is attached to the dust-eliminating body 20.

As shown in FIGS. 1 and 2, the dust removing unit 2 has a dust removing body 20 having an open front portion, a sweeping blade 21 attached to a dust receiving plate 20A of the dust removing body 20, and the dust removing body 21 described above. The dust collecting main body 20 is configured to include a lid 22 that can close the open portion and an arm member 23 that is rotatably connected to the dust collecting main body 20.

As shown in FIG. 3, the dust removing main body 20.
Is formed in a box shape that is open to the front, and a plurality of penetrating mounting holes 20B are formed in the lower end of this open part, that is, in the dust receiving plate 20A. As clearly shown in FIGS. 3 and 5, the mounting hole 20B is
A portion of the dust receiving plate 20A facing the leading edge of the dust receiving plate 20A has a linear locking hole 20a, and a front opening extending from the straight portion of the locking hole and extending toward the leading edge of the dust receiving plate 20A. And a guide hole 20d. Further, as shown in FIG. 3, mounting portions 20b, 20b for mounting an arm member 23, which will be described later, are formed at appropriate portions on both side surfaces of the dust removing main body 20. In addition,
The dust removing main body 20 can be easily formed by resin molding or the like.

As shown in FIG. 4, the sweeping blade 21 includes a mounting base portion 21A that overlaps the upper surface of the tip of the dust receiving plate 20A, and a blade edge 21B that further extends from the tip edge of the dust receiving plate 20A. Is equipped with. The sweeping blade 21 is made of, for example, soft rubber or plastic so as to be elastically deformable.

On the rear surface side of the mounting base 21A, there is a cross-section of an oval shape having substantially the same shape as the locking hole 20a, corresponding to the positions where the mounting holes 20B of the dust receiving plate 20A are formed. A shaft portion 21b having a length corresponding to the thickness of the dust receiving plate 20A, and a large diameter portion 21c integrally formed at the lower end of the shaft portion 21b and having a diameter larger than the diameter of the shaft portion 21b. A plurality of locking protrusions 21a are formed.

As shown in FIG. 4, the mounting base portion 21A and the blade edge 21B are formed so that the cross-sectional shape becomes thinner toward the tip, and the sweeping blade 21 is not mounted. In, the respective tip positions are formed so as to be positioned relatively lower than the lower surface of each base end portion.

As shown in FIG. 5, the sweeping blade 21 includes the shaft portion 21b of the locking projection 21a from the front of the dust receiving plate 20A of the dust removing body 20, the shaft hole 21b from the guide hole 20d to the locking hole. 20a, and the locking projection 2
It can be attached to the dust removing main body 20 by a simple operation such as engaging 1a with the locking hole 20a.
At this time, the shaft portion 21b has the guide hole 2 that gradually narrows.
0d pushes in in the left-right width direction while advancing, and when it reaches the locking hole 20a, it elastically restores and is fitted into the locking hole 20a exactly.

In the dust remover 2 according to this embodiment, the dust receiving plate 20A of the dust remover main body 20 is provided with the engaging hole 20.
Since the guide hole 20d that communicates with a and expands from the base toward the tip of the dust receiving plate 20A is formed, the sweeping blade 21 is moved to the dust receiving plate 2
The positioning of the sweeping blade 21 can be easily performed when mounting along the leading edge of 0A.

Further, the shaft portion 21b fitted in the locking hole 20a exactly has a linear portion at a portion facing the tip edge of the dust receiving plate 20A, like the locking hole 20a. Further, since the base portion of the guide hole 20d is formed narrower than the shaft portion 21b, the movement in the front-rear direction is restricted. Therefore, the sweep blade 2
1 is firmly attached to the dust receiving plate 20A.

Further, since the shaft portion 21b has a length corresponding to the thickness of the dust receiving plate 20A and the large diameter portion 21c is integrally formed at the lower end, the shaft portion 21b is engaged with the locking hole 20a. The shaft portion 21b thus formed is the large-diameter portion 2
Since the vertical movement is restricted by the upper surface of 1c and the lower surface of the dust receiving plate 20A, the sweeping blade 21 can be more firmly attached to the dust receiving plate 20A of the dust removing main body 20.

Further, according to such dust removal, the tip end position of the attachment base portion 21A formed so as to be positioned relatively lower than the lower surface of the base end portion is attached to the dust receiving plate 20A. In the state, the above-mentioned mounting base 21A
It will be located at the same position as the lower surface of the base end portion of. That is, since the tip end portion presses the dust receiving plate 20A by the elastic restoring force of the tip end portion of the attachment base portion 21A, the attachment base portion 21A of the sweeping blade 21 tightly contacts the dust receiving plate 21A of the dust removing main body 20. It is attached. Therefore, it is possible that dust and dirt contained in the dust removing body 20 will advance from the front edge of the mounting base 21A between the back surface of the mounting base 21A and the front surface of the front end of the dust receiving plate 20A. It can be avoided.

The tip portion of the blade edge 21B formed so as to be positioned relatively lower than the lower surface of the base end portion has this tip in the state where the sweeping blade 21 is grounded on the floor surface. Since the floor surface is pressed by the elastic restoring force of the tip portion, the blade edge 21B comes into close contact with the floor surface. Therefore, according to the dust removal having the above-described configuration, it is possible to prevent the dust and the dust to be swept into the dust removal main body 20 from advancing to the back surface side of the blade edge 21B, and to effectively perform the dust removal main body 20.
Sweep dust and dirt inside to accommodate it.

The shape of the locking hole 20a, the shape of the guide hole 20d, and the cross-sectional shape of the shaft portion 21b are not limited to the shape of this embodiment, and various design changes are possible.

Further, the designing positions of the locking holes 20a and the locking projections 21a and the number of them can be variously changed.

FIG. 6 shows a region B surrounded by the alternate long and short dash line in FIG.
FIG. 7 is an enlarged rear view of FIG.
FIG. 8 is a front view of the lid body 22.

As shown in FIG. 3, the dust removing main body 20 is
A protrusion 20c for restricting the rotation of the arm member 23 is formed in the front portion of the attachment portion 20b for attaching the arm member 23 formed in FIG.
As shown in FIGS. 2 and 6, a supporting protrusion 20e is formed on the upper rear surface of the dust removing main body 20, and a wheel mounting portion 20f for mounting the wheel 20C is formed on the lower rear surface thereof. There is.

As clearly shown in FIG. 2, the supporting projection 20e and the wheel mounting portion 20f are in contact with the floor surface when the dust removing main body 20 is in an upright state, so that the dust removing main body 20 is in an upright state. Can be maintained. In addition, a wheel 20C is provided on the lower rear surface of the dust removing body 20.
Since the dust collecting body 20 is attached, the grip portion 26 can be gripped with the tilted main body 20 and the dust collecting body 2 can be easily moved.

As shown in FIG. 7, the arm member 23 is
Is formed in a bent U shape, and mounting holes 23a, 23a for rotatably mounting the dust collecting body 20 are formed at both ends. In addition, a handle 25, which will be described later, is attached to the center of the arm member 23 by a joint 2
Bolt holes 23b, 23b and an insertion hole 23c for mounting via 4 are formed. Further, fins 23d and 23d that interfere with the projection 20c formed on the dust-removing body are formed near the mounting holes 23a and 23a.

As shown in FIG. 1 and FIG.
2 is formed in a shape capable of straddling the upper surface of the dust removal body 20, and is also provided with mounting portions 22a, 22a for rotatably mounting the arm member 23. In addition, the lid 22 includes the arm member 23.
1 is rotated to slide on the upper surface of the dust removing main body 20 from the state shown by the solid line in FIG. 1 to the state shown by the phantom line, as shown in FIG. The lid 22 is configured to close the open portion of the dust removing main body 20 when the dust removing 2 is erected and the dust removing 2 is not used.

Further, as shown in FIG. 1, a handle 25 made of a hollow pipe material is connected to the arm member 23 through a joint 24, and the other end of the handle 25 is provided with the dust dust. In order to facilitate the operation of the grip 2, the grip 2
6 is provided.

In the dust remover 2 thus constructed, the dust remover main body 20 is erected by the weight of the dust remover main body 20 just by lifting the gripping portion 26. At this time, the arm member 2
3 rotates relative to the dust removing body 20.
Along with this, the lid 22 slides on the upper surface of the dust removing body 20 and closes the open portion of the dust removing body 20. That is, in the dustpan 2 according to the present embodiment, the opening portion can be closed by the lid body 22 by an extremely easy operation.

Further, when the gripping portion 26 is lifted and the dust removing main body 20 is erected, the projections 20c formed on the appropriate surface portion of the dust removing main body 20 and the fins formed on the arm member 23. 23d interfere with each other and the rotation of the arm member 23 is restricted. That is, it is possible to prevent the arm member 23 from rotating more than necessary, and to ensure a predetermined standing state of the dust removing main body 20 and also a standing state of the handle 25.

In this embodiment, the handle 25 is
Although the pipe 25 is made of one piece, it is also possible to connect a plurality of pipes to make them expandable and contractible so that the length of the handle 25 can be adjusted.

[Brief description of drawings]

FIG. 1 is a fragmentary side view showing an example of a dustpan according to the present invention.

FIG. 2 is a side view showing a state in which a dust removing body is erected.

FIG. 3 is an overall perspective view of a dust removing body.

FIG. 4 is an enlarged view of a region A surrounded by the alternate long and short dash line in FIG.

FIG. 5 is a bottom view showing how the sweeping blade is attached to the dust removing body.

6 is an enlarged rear view of a region B surrounded by the alternate long and short dash line in FIG.

FIG. 7 is an overall perspective view of an arm member.

FIG. 8 is a front view of a lid body.

FIG. 9 is an explanatory diagram of a conventional example.

FIG. 10 is an explanatory diagram of a conventional example.

[Explanation of symbols]

2 Dust removal 20 Dust removal body 20A dust receiving plate 20B mounting hole 20a Locking hole (for mounting hole) 20d guide hole (for mounting hole) 21 sweeping blade 21A mounting base (sweep blade) 21B Blade edge (for sweeping blade) 21a Locking protrusion 21b Shaft (of locking projection) 21c Large diameter part (of locking projection) 23 Arm member

Claims (4)

(57) [Claims] 1. A dust remover, in which a sweeping blade made of soft rubber or plastic is attached along the tip edge of the dust receiving plate of the dust removing body, and the dust removing plate is provided at the tip end of the dust receiving plate. , A plurality of mounting holes each having a penetrating locking hole and a guide hole communicating with the locking hole and expanding from the base portion having a width narrower than the locking hole and opening to the tip edge of the dust receiving plate. On the other hand, the sweep blade is provided with a mounting base portion that overlaps the top surface of the tip of the dust receiving plate, and a blade edge that further extends from the tip edge of the dust receiving plate, and The back surface side of the mounting base has a uniform cut surface that can be engaged with the locking holes in correspondence with the positions where the mounting holes of the dust receiving plate are formed. It has a length corresponding to the thickness, and the guide Shaft diameter than the width of the base
A dust catch characterized in that a plurality of locking projections having a large shaft portion and a large diameter portion integrally formed at the lower end of the shaft portion are formed at a plurality of positions. 2. The mounting base and / or the blade edge are formed so that the cross-sectional shape becomes thinner toward the tip, and when the sweeping blade is not attached, the tip positions are different from each other. The dustpan according to claim 1, which is formed so as to be positioned relatively lower than a lower surface of the base end portion. 3. The locking hole is formed in a truncated circular shape in which the portion facing the tip edge of the dust receiving plate is linear, and the cross-sectional shape of the shaft portion is also the shape of the locking hole. The dustpan according to claim 1 or 2, which is correspondingly formed in an oval shape. 4. The dust remover according to claim 1, wherein a maximum width of the guide hole is formed larger than diameters of the locking hole and the shaft portion.