JP2004073685A - Dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve operability and workability by providing a positioning means for a tank and a head to always match a connecting part of a duct hose with a switch surface. <P>SOLUTION: A part of a lower end of a head 4 is turned down and formed in U-shape 8, and a form of a connecting part 7 for attaching/detaching a dust hose 6 of a tank 5 is made correspondent thereto, such that the surface of a switch 3 of the head 4 and the connecting part 7 for attaching/detaching the duct hose 6 of the tank 5 are always provided on the same straight line. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable dust collector in which a tank for storing sucked dust and the like and a head for accommodating a motor and the like are detachable, and more particularly to a positioning structure of the head with respect to the tank of the dust collector. Things.
[0002]
[Prior art]
A conventional dust collector will be described with reference to FIGS. 5 is a front view showing a conventional dust collector, FIG. 6 is a left side view of the dust collector shown in FIG. 5, and FIG. 7 is a plan view of the dust collector shown in FIG. As shown in FIGS. 5 to 7, a general portable dust collector has a tank portion 5 for storing dust, liquid, and the like conveyed through a duct hose (not shown). A head unit 4 having a motor or the like as a driving source is detachably provided to the unit 5 so that dust and the like accumulated in the tank 5 can be discarded after detaching the head unit 4 from the tank unit 5. It is configured.
[0003]
The head unit 4 is provided with a dust collection fan rotated by a motor, a switch 3 for starting and stopping the motor, and the like. Further, the head unit 4 is viewed from above by the shape of the motor and the dust collection fan. In addition to being substantially circular, the opening above the tank 5 corresponding to the head 4 is also substantially circular.
[0004]
Further, the tank unit 5 is provided with a clamp unit 9 for fixing and releasing the head unit 4, a connection unit 7 to which a duct hose for conveying dust and the like can be attached and detached, and the like.
[0005]
In such a configuration, when the switch 3 is turned on, the dust collection fan is rotated by the motor, and a suction force is generated in the duct hose via the tank portion 5, and dust and the like pass through the duct hose using the suction force. It is transported and stored in the tank unit 5. When discarding dust and the like in the tank 5, the clamping device 9 is released, the head 4 is lifted up and removed from the tank 5, and the tank 5 is turned over to discard the accumulated dust and the like. are doing. After the disposal, the head unit 4 is placed on the tank unit 5 that has been erected, and is fixed at a free position by the clamp device 9.
[0006]
However, in the above-described dust collector, when the operator places the head unit 4 on the tank unit 5, there is nothing to regulate the rotation direction of the substantially circular head unit 4 having the switch 3. At present, the connection portion 7 and the switch 3 mounting surface of the head portion 4 are hardly located on the same straight line, and the operator has unknowingly incorporated the connection portion without being conscious of it. For this reason, after assembling the head part 4 and the tank part 5, when performing dust collection work, it is noticed that the switch 3 side is not facing the operator side, that is, while working while pulling the dust collector body with the duct hose, the duct hose connection is performed. Since the side is the operator position, if there is no switch 3 surface at this position, the operator has to go around the rear of the dust collector body and operate the switch 3. In other words, it is necessary to operate the switch 3 each time the work is started, interrupted, or terminated, and if there is no switch 3 surface at an appropriate position, it takes time to turn the switch 3 on and off. There is a problem that this leads to a decrease in
[0007]
[Problems to be solved by the invention]
As described above, the conventional dust collector has no means for positioning the head portion at an arbitrary position with respect to the tank portion, so the connection portion of the duct hose provided on the tank portion and the switch surface provided on the head portion are not provided. Is often not located on the same straight line, and when the operator at the duct hose connection side performs on / off operation, there is no switch surface on the duct hose connection side, and it is bothersome to go behind the dust collector body. Since the switch has to be operated and the switch 3 requires time to be turned on / off, there is a problem that operability and workability are reduced.
[0008]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, to provide a positioning means for a tank part and a head part, so that a connection part of a duct hose and a switch surface can always be matched, thereby improving operability and workability. Is to improve.
[0009]
[Means for Solving the Problems]
The object is to provide a motor as a drive source, a dust collection fan rotated by the motor, a head unit for housing the fan, a switch provided on the head unit and controlling the motor, and a switch provided below the head unit having the switch. And a duct portion attached to a connection portion of the tank portion, the lower portion of the head portion having a downwardly projecting portion. This is achieved by providing a concave portion corresponding to the protruding portion in the head portion having the connecting portion.
[0010]
Further, the object is to provide a motor as a driving source, a dust collection fan rotated by the motor, a head unit for housing the fan, a switch provided on the head unit and controlling the motor, and a head unit having a switch. In a dust collector including a tank located below and for storing dust conveyed by a dust collecting fan, and a duct hose attached to a connection of the tank, a part of an upper end of a head having a connection is provided. This is achieved by providing an upwardly projecting portion and providing a recess corresponding to the projecting portion at a part of the lower end of the head portion.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
The dust collector in the present embodiment will be described with reference to FIGS. 1 is a front view showing an example of the dust collector according to the present embodiment, FIG. 2 is a left side view of the dust collector shown in FIG. 1, FIG. 3 is a right side view of the dust collector shown in FIG. 1, and FIG. It is a top view.
[0012]
1 to 4, the dust collector includes a motor 1 as a driving source, a head 4 having a dust collecting fan 2 directly connected to the motor 1, and a switch 3 for starting and stopping the motor. The head 4 has a substantially circular shape when viewed from above due to the shapes of the motor 1 and the dust collecting fan 2. A tank portion 5 for storing collected liquid or dust is disposed below the circular head portion 4, and a duct hose 6 for conveying dust and the like is attached to and detached from the tank portion 5. The connection part 7 is provided in a suitable place. Further, the tank unit 5 is provided with a clamp device 9 for fixing and releasing the head unit 4. A part of the lower end of the head part 4 is formed in a substantially U-shape 8 protruding downward, while a part of the upper end of the connecting part 7 for attaching and detaching the duct hose 6 provided in the tank part 5 is formed in a U shape. It has a concave shape (U-shaped groove) that matches the character shape 8, that is, follows the U shape 8. The protruding portion of the U-shape 8 and the shape of the concave portion are formed on each of the head portion 4 and the tank portion 5 so as to be located on the same straight line.
[0013]
In the above configuration, when the switch 3 is turned on, the motor 1 starts and the dust collection fan 2 rotates, so that a suction force is generated in the duct hose 6 via the tank unit 5. Dust and the like are conveyed into the tank unit 5 through the duct hose 6 by the suction force. When discarding dust and the like in the tank section 5, the clamp device 9 is released, the head section 4 is lifted up and removed from the tank section 5, and the dust and the like accumulated by dropping the tank section 5 sideways are discarded. be able to. After being discarded, the head unit 4 is placed on the tank unit 5 and fixed with the clamp device 9. At this time, the U-shape 8 of the connection unit 7 in the tank unit 5 is adjusted by matching the above-mentioned U-shapes 8. Reference numeral 8 serves as a guide portion, and can be fixed by the clamp device 9 in a state where the position of the connection portion 7 of the tank portion 5 and the surface of the switch 3 of the head portion 4 are always in the same position (proper state).
[0014]
Therefore, since the switch 3 surface is always located on the worker side, the operability of the switch 3 is good, and the operability can be improved. Further, since only the shape of the lower end of the head portion 4 and the shape of the duct hose connection member of the tank portion 5 are changed without any additional parts, a dust collector having an inexpensive configuration and capable of performing reliable positioning can be provided.
[0015]
In addition, as a shape for aligning the head part 4 and the tank part 5 at the same position, a part of the lower end of the head part 4 is formed upward to form an inverted U-shape. The shape of the upper end of the connecting portion 7 for attaching and detaching the hose 6 may be adjusted to an inverted U-shape. That is, the same effect can be obtained even if the U-shaped direction is provided in reverse. Further, a V-shape other than the above-described U-shape may be used, and a shape other than the above may be any shape as long as the above-mentioned effect is obtained. Further, the embodiment in which the protruding portion or the concave portion is formed integrally by the members forming the head portion 4 or the tank portion 5 has been described, but the protruding portion or the concave portion forms the head portion 4 or the tank portion 5. You may form with a member different from a member.
[0016]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the connection part of a duct hose and a switch surface are matched by providing the protrusion part which faces downward at the lower end part of a head part, and providing the recessed part corresponding to a protrusion part with the head part which has a connection part. , And the operability of the switch is good, and the workability can be improved. Further, since only the shape of the lower end of the head portion and the shape of the duct hose connecting member of the tank portion are changed without any additional parts, it is possible to provide an inexpensive configuration and a dust collector that can reliably perform positioning.
[0017]
In addition, by providing a protruding portion facing upward at a part of the upper end of the head part having the connecting part and providing a concave part corresponding to the protruding part at a part of the lower end of the head part, the connecting part of the duct hose and the switch surface are aligned. , And the operability of the switch is good, and the workability can be improved. Further, since only the shape of the lower end of the head portion and the shape of the duct hose connecting member of the tank portion are changed without any additional parts, it is possible to provide an inexpensive configuration and a dust collector that can reliably perform positioning.
[Brief description of the drawings]
FIG. 1 is a front view showing an example of a dust collector according to the present invention.
FIG. 2 is a left side view of the dust collector shown in FIG.
FIG. 3 is a right side view of the dust collector shown in FIG.
FIG. 4 is a plan view of the dust collector shown in FIG.
FIG. 5 is a front view showing a conventional dust collector.
FIG. 6 is a left side view of the dust collector shown in FIG.
FIG. 7 is a plan view of the dust collector shown in FIG.
[Explanation of symbols]
1 is a motor, 2 is a dust collecting fan, 3 is a switch, 4 is a head, 5 is a tank, 6 is a duct hose, 7 is a connection, and 8 is a U-shape.

Claims (14)

A motor serving as a driving source, a dust collection fan rotated by the motor, a head unit for housing the fan, a switch provided on the head unit for controlling the motor, and the head unit including the switch And a tank portion for storing dust conveyed by the dust collecting fan and a duct hose attached to a connection portion of the tank portion. A dust collector, wherein a downwardly protruding portion is provided, and a concave portion corresponding to the protruding portion is provided on the head portion having the connection portion. The dust collector according to claim 1, wherein the protrusion is disposed below the switch surface, and the recess is disposed above the connection portion. The dust collector according to claim 1, wherein the protrusion and the recess are located on the same straight line. The dust collector according to claim 1, wherein the protrusion is U-shaped. The dust collector according to claim 1, wherein the recess is a U-shaped groove corresponding to the U-shape. The dust collector according to claim 1, wherein the protrusion has a V shape. The dust collector according to claim 1, wherein the recess is a V-shaped groove corresponding to the V-shape. A motor serving as a driving source, a dust collection fan rotated by the motor, a head unit for housing the fan, a switch provided on the head unit for controlling the motor, and the head unit including the switch A dust tank, which is located below the container and stores dust conveyed by the dust collecting fan, and a duct hose attached to a connecting portion of the tank portion, wherein the head portion having the connecting portion is provided. A dust collector, wherein an upwardly projecting portion is provided at a part of an upper end of the head portion, and a concave portion corresponding to the projecting portion is provided at a part of a lower end of the head portion. 9. The dust collector according to claim 8, wherein the protrusion is disposed above the connection part, and the recess is disposed below the switch surface. The dust collector according to claim 8, wherein the protrusion and the recess are located on the same straight line. The dust collector according to any one of claims 8 to 10, wherein the projection is U-shaped. The dust collector according to any one of claims 8 to 10, wherein the recess is a U-shaped groove corresponding to the U-shape. The dust collector according to any one of claims 8 to 10, wherein the protrusion is V-shaped. The dust collector according to claim 8, wherein the recess is a V-shaped groove corresponding to the V-shape.

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