JP2000054333A - Hand-held cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hand-held cleaner in which an inexpensive extruded molding pipe can be used as a suction pipe and the suction pipe is securely prevented from unexpectedly dropping out during a cleaning work. SOLUTION: This hand-held cleaner is provided with a blower 5 driven by a prime mover 3, and a cylindrical suction opening 25 is formed at the front face side in the fan case 20 of the blower 5. The basal end 10a of a suction pipe 10 is inserted in the inner peripheral side of the suction opening 25, and these outer peripheral sides are tightened by a band 30 or the like. Thereby, the suction pipe 10 can be detachably fastened and fixed to the suction opening 25. Further, a correcting and reinforcing tapered sleeve 12 is fitted to the basal end 10a of the suction pipe 10 while putting the small diameter side end part 12c in the inner depth side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand-held cleaner used for cleaning work and the like, and more particularly, to a suction machine provided with a motor as a power source, for example, for sucking fallen leaves and dust and the like. The present invention relates to a hand-held cleaner adapted to selectively perform a blowing operation of blowing air.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional example of such a hand-held cleaner. This hand-held cleaner 100 is shown, for example, in a state of sucking fallen leaves and dust, in other words, in a state of being used as a vacuum cleaner (cleaner) for cleaning. Machine 1
00 is an air-cooled two-cycle internal combustion engine 3 as a prime mover
And a blower 5 driven by the internal combustion engine 3;
As shown in FIG. 6 in addition to FIG. 5, a centrifugal blower fan 6 is provided on one end side (front side) of a crankshaft 3a which is an output shaft of the internal combustion engine 3. Is attached.

The blower 5 includes a blower fan 6
And a fan case 20 having a two-part configuration including a front side case part 21 and a rear side case part 22 forming a volute chamber. On the back side of the rear case part 22, the cylinder of the internal combustion engine 3 and the like are provided. A covering body cover 23 is provided integrally and continuously. Further, a first handle 7 is provided on the upper portion of the main body 2 so as to be orthogonal to the crankshaft 3a, and a second handle 8 is provided on a back side of the internal combustion engine 3 so as to be orthogonal to the first handle. Have been.
A cylindrical suction port 2 is provided at the center of the front side (the front case portion 21) of the fan case 20 of the blower 5.
5 and an outlet 27 on one side of the fan case 20.

[0004] A suction port cover 15 that can cover the suction port 25 can be opened and closed via a hinge member 16.
In the illustrated example, the suction cover 15 is opened, and a synthetic resin material such as vinyl chloride is coated on the inner peripheral side of the suction port 25 in the illustrated example. The base end 10a of the suction pipe 10 made of a pipe manufactured by extrusion molding as a material is inserted, and the bolt 32 attached to the tightening band 30 wrapped around the outer periphery of the suction port 25 is tightened. The suction pipe 10 is detachably fastened and fixed to the suction port 25. In addition, the suction port 25 is divided into a plurality of arc portions, for example, and a gap (split) 25a is formed between the arc portions. By tightening 30, the suction pipe 10 comes into close contact with the base end 10 a of the suction pipe 10.

On the other hand, an L-shaped blow-off pipe 41 is detachably attached to the blow-out port 27, and an air-permeable dust-collecting bag 42 is provided at a downstream end of the blow-out pipe 41.
Is mounted on the shoulder of the worker. Hand-held cleaner 100 having such a configuration
Is used as a cleaning vacuum machine as shown in the figure, normally, the first handle 7 is held with the left hand to suck the leaves and the like from the tip opening 10b of the suction pipe 10, and the Holding the two handles 8 with the right hand, the suction pipe 10 is set to a posture in which it faces downward.

On the other hand, when the suction pipe 10 is used as a cleaning power blower for blowing and collecting litter and dust, the suction pipe 10 is usually removed, and the suction cover 15 is closed. Blow-off pipe 41
In place of the dust bag 42, for example, a blow-off pipe (not shown) having a flattened tip is attached to the blow-out port 27, and the air blown out from the tip of the blow-off pipe is used to cover the ground. In order to blow off falling leaves, etc., the first handle 7 is held, and the outlet pipe is directed obliquely forward and downward, that is, when the main body 2 is used as the vacuum machine, The posture is rotated by about 90 degrees in the plane.

[0007]

In the conventional hand-held cleaner 100 as described above, when the suction pipe 10 is attached to the suction port 25 and used as a cleaning vacuum machine, the following is required. It became clear that such a problem would occur. That is, during the cleaning operation, the suction pipe 10 has its distal end opening 10b (free end) side inevitably coming into contact with the ground, trees, or the like, and is swung to pry with its base end 10a as a fulcrum. (See arrow P in FIG. 6).

As described above, when the suction pipe 10 is frequently shaken or bent, the base end 10a of the suction pipe 10
As shown in FIG. 7, the base end portion 10 a is tightly fixed to the suction port 25 with the band 30.
Deforms so that the end of
When the suction pipe 10 comes into contact with the ground, a tree, or the like, there is a problem that the suction pipe 10 comes off unexpectedly.

As one measure for solving such a problem, it is conceivable to integrally provide a flange-like portion or a locking portion for preventing the suction pipe from falling off. Must be manufactured by an expensive molding method such as injection molding, and there is a disadvantage that an inexpensive extruded pipe cannot be used. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to use an inexpensive extruded pipe as the suction pipe. An object of the present invention is to provide a hand-held cleaner which can surely prevent falling off.

[0010]

In order to achieve the above object, a hand-held cleaner according to the present invention basically comprises a blower driven by a prime mover, and a blower is provided on a front side of a fan case of the blower. -Shaped suction port is provided,
The suction pipe is detachably attached to the suction port by inserting a base end portion of the suction pipe into an inner circumference side of the suction port and fastening the outer circumference of the suction pipe with a band or the like. Then, a straightening reinforcement sleeve having a taper is fitted and inserted into the base end of the suction pipe with its small-diameter end portion inward.

In the present invention, as the suction pipe, an inexpensive extruded pipe manufactured by extrusion using a synthetic resin material as a raw material is preferably used. In a preferred aspect of the present invention, a locking projection for preventing the removal is formed on the outer peripheral surface of the correction reinforcing sleeve. In another preferred aspect, the correction reinforcing sleeve includes:
Preferably, a highly rigid metal material such as a steel pipe material is used,
The outer diameter of the large-diameter end is substantially the same as the inner diameter of the base end of the suction pipe. In a further preferred aspect, a flange-shaped portion having substantially the same diameter as the outer diameter of the base end of the suction pipe is provided at the large-diameter end of the straightening reinforcement sleeve.

[0012] In the hand-held cleaner according to the present invention having the above-described structure, the suction pipe is fitted with the tapered correction reinforcing sleeve at the base end of the suction pipe. By inserting into the suction port of the blower and tightening their outer peripheral side with a band etc.
The suction pipe is detachably attached to the suction port.

In the case where the suction pipe is attached to the suction port and used as a vacuuming machine for cleaning, the tip end (open end) side of the suction pipe is ground, tree, or the like during cleaning. , And even if it is shaken or bent with its base end as a fulcrum, the tapered correction reinforcing sleeve is inserted into the base end, so that it is similar to the conventional one. However, the distal end of the proximal end is not deformed so as to be narrowed. Conversely, the proximal end has almost no change in the diameter of the distal end along the outer peripheral surface of the orthodontic reinforcing sleeve, and Deforms into a tapered shape with narrowed sides. In this case, the base end portion is fixed to the suction port by being tightened by a band or the like from the outer peripheral side of the suction port, so that the outer diameter of the distal end side is tightened by the band or the like. As a result, even when an inexpensive extruded pipe is used as the suction pipe, it is possible to reliably prevent the suction pipe from accidentally dropping out during cleaning work. it can. In addition, the straightening reinforcement sleeve is more difficult to be deformed by providing a flange-shaped portion at its large-diameter end, and also functions as a reinforcement for the suction pipe.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show one embodiment of a hand-held cleaner according to the present invention. In the drawing, the same reference numerals are given to the portions corresponding to the respective portions of the conventional hand-held cleaner 100 shown in FIGS. 5 to 7 described above, and the duplicated description thereof will be omitted.
The differences will be emphasized. The hand-held cleaner 1 of the illustrated embodiment is also shown in a state of sucking litter and dust, in other words, in a state of being used as a vacuuming machine (cleaner) for cleaning.
The parts other than the mounting structure for the suction port 25 of the conventional hand-held cleaner 10 shown in FIGS.
0 and the same configuration.

The suction pipe 10 of the present embodiment is also a cylindrical pipe made by extrusion molding using a synthetic resin material such as vinyl chloride as a raw material. Referring to FIGS. 2 and 3 in addition to FIG. As can be seen, its proximal end 10
A tapered correction reinforcing sleeve 12 made of a metal material having high rigidity such as a steel pipe material is fitted into a of FIG. The straightening reinforcing sleeve 1
The outer diameter of the large-diameter side end portion 12d is substantially the same as the inner diameter of the base end portion 10a of the suction pipe 10, and an intermediate portion of the outer peripheral surface thereof extends outward from the inner peripheral side. A plurality of retaining projections 12a are formed at equal angular intervals (for example, at 45 ° intervals), and are further provided on the large-diameter end 12d thereof with the base of the suction pipe 10. End 1
A flange 10b having substantially the same diameter as the outer diameter of Oa is integrally formed.

The suction port 25 is divided into a plurality of circular arc portions as shown in FIG. 3, for example, and a gap (split) 25a is formed between the circular arc portions. The tightening band 30 makes it easy to narrow, and the band 30 is tightened so that the suction pipe 10 comes into close contact with the base end 10 a of the suction pipe 10.

In the hand-held cleaner 1 according to the present embodiment having the above-described configuration, the tapered correction reinforcing sleeve 1 is provided on the base end portion 10a of the suction pipe 10.
2, the suction pipe 10 is inserted into the suction port 25 of the blower 5 and the outer peripheral side thereof is tightened with the tightening band 30 so that the suction pipe 10 is inserted into the suction port 25. To be removably mounted.

Here, when the suction pipe 10 is attached to the suction port 25 and used as a cleaning vacuum machine, the suction pipe 10 has its tip opening 10b (free end) side during cleaning. Even if it comes into contact with the ground, trees, etc., and is shaken or bent with its base end 10a as a fulcrum, since the correction reinforcing sleeve 12 is fitted into the base end 10a, Unlike the conventional one, the distal end of the base end portion 10a is not deformed so as to be narrowed. Conversely, as shown in FIG. 4, the base end portion 10a is bitten by the locking projection 12a. As well as being prevented from falling off, the diameter of the distal end is hardly changed along the outer peripheral surface of the correction reinforcing sleeve 12, and the inner rear side is deformed into a tapered shape narrowing. In this case, the base end portion 10a is fastened and fixed to the suction port 25 so as to be narrowed by the band 30 from the outer peripheral side of the suction port 25. As a result, even when an inexpensive extruded pipe is used as the suction pipe 10, the suction pipe 10 may fall out unexpectedly during the cleaning operation. Such inconvenience can be reliably prevented.

In addition, since the correction reinforcing sleeve 12 is provided with a flange portion 12b at its large diameter end portion 12d, it is more difficult to deform, and as a reinforcing material for the suction pipe 10, Also fulfills the role. As described above, one embodiment of the present invention has been described in detail. However, the present invention is not limited to the above-described embodiment, and in design, does not deviate from the spirit of the invention described in the claims.
Various changes can be made.

[0020]

As will be understood from the above description, the hand-held cleaner according to the present invention comprises:
An inexpensive extruded pipe can be used, and the suction pipe can be surely prevented from dropping out unexpectedly during the cleaning operation.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a hand-held cleaner according to the present invention.

FIG. 2 is an enlarged longitudinal sectional view showing the vicinity of a suction port of the hand-held cleaner shown in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a diagram which is used for describing the operation of the suction pipe mounting structure in the hand-held cleaner shown in FIG.

FIG. 5 is a perspective view showing an example of a conventional hand-held cleaner.

FIG. 6 is an enlarged sectional view showing the vicinity of a suction port of the hand-held cleaner shown in FIG. 5;

FIG. 7 is a diagram which is used for describing the operation of the suction pipe mounting structure in the hand-held cleaner shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Hand-held cleaner 3 ... Air-cooled two-stroke internal combustion engine (motor) 5 ... Blower 10 ... Suction pipe 10a ... Base end 12 ... Correction reinforcing sleeve 12a ... Locking projection 12b ... Flange 12c ... Small diameter side end 12d ... Large diameter side end 20 ... Fan case 25 ... Suction port 30 ... Band

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[Procedure amendment]

[Submission date] August 20, 1998 (1998.8.2
0)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

Claims (5)

[Claims] 1. A blower (5) driven by a prime mover (3), and a fan case (2) of the blower (5) is provided.
0), a cylindrical suction port (25) is provided on the front side, and the base end (10a) of the suction pipe (10) is inserted into the inner peripheral side of the suction port (25) so that the outer peripheral side thereof is fixed. By tightening with a band (30) or the like, the suction port (2
5) In the hand-held cleaner (1) to which the suction pipe (10) is removably fastened and fixed, the base end (10a) of the suction pipe (10) has a tapered correction reinforcing sleeve (12). Characterized in that the small-diameter side end (12c) is inserted into the inner side of the cleaner. 2. The hand-held cleaner according to claim 1, wherein the suction pipe is an extruded pipe made of a synthetic resin material. 3. The hand-held cleaner according to claim 1, wherein a locking projection (12a) for retaining is formed on an outer peripheral surface of the correction reinforcing sleeve (12). 4. An outer diameter of a large-diameter end portion (12d) of the correction reinforcing sleeve (12) is substantially the same as an inner diameter of the base end portion (10a) of the suction pipe (10). The hand-held cleaner according to any one of claims 1 to 3, wherein: 5. A flange-like portion (about the same diameter as the outer diameter of the base end (10a) of the suction pipe (10)) at the large-diameter end (12d) of the straightening reinforcement sleeve (12). The hand-held cleaner according to any one of claims 1 to 4, wherein 12b) is provided.