JP5247267B2 - Waste suction device - Google Patents

Description

The present invention relates to a dust suction device for sucking and removing dust including nails, screws, other metal pieces and dust.

Conventionally, asbestos slate has been laid on the lower surface of tiles and metal roofing materials in order to provide fire resistance and heat insulation (see, for example, Patent Document 1). Asbestos is inexpensive and easy to process and has excellent fire resistance, heat insulation, soundproofing, and the like, and has been widely used for building materials and spraying materials. However, in recent years, asbestos has carcinogenicity has become a social problem, and asbestos used in existing buildings has been removed nationwide.
Asbestos slate laid on the roof is generally nailed to the field board. Therefore, when removing the asbestos slate, it is necessary to remove the nail that fixes the asbestos slate to the base plate. However, when the nail holding the asbestos slate is removed using a nail remover, there is a problem that the asbestos is scattered as dust.

Therefore, the inventor of the present invention has a frame main body portion in which a pin penetrating the nail head latching portion of the nail remover, in which a V-shaped cut is formed at the tip of the nail head latching portion, surrounds the nail head latching portion. As a result, the nail puller can be rotated around the pin, and a connecting pipe connected to the flexible hose of the vacuum cleaner is installed in the frame main body at a position facing the V-shaped cut. In addition, an asbestos-containing roof peg extraction device has been devised, in which the entire frame body is covered with a cover (see Patent Document 2). In this device, the nail can be easily pulled out by inserting the head of the nail into the V-shaped cut and rotating the nail punch around the pin. The removed nail is sucked together with the generated asbestos dust by a vacuum cleaner through a connecting pipe. As a result, asbestos is not scattered and the asbestos removal operation can be performed safely and efficiently.

Japanese Patent Laid-Open No. 5-52005 Utility Model Registration No. 3131133

However, in the case of the asbestos-containing roof material peg removal tool described in Patent Document 2, the nail that has been sucked is caught in the flexible hose, causing nail clogging, and the nail removal operation must be interrupted. There were often.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a dust suction device that is excellent in workability without being caught by foreign matter contained in the dust inside the flexible hose.

In order to achieve the above object, a first invention is a dust suction device for sucking and removing dust,
A flexible hose that serves as a suction conveyance path for the dust, and a holding member that holds a suction end of the flexible hose;
The flexible hose is connected to the holding member via a suction hook connecting member that is looped around the flexible hose end, and the discharge of the flexible hose is looped around the hook end. The suction port connected to the foreign matter collecting means for collecting the sucked dust through the discharge hook connecting member, and the inner diameter of the suction port formed at one end of the suction hook connecting member is the same as the inner diameter of the flexible hose Alternatively, the inner diameter is larger than that through the tapered portion, and the inner diameter of the discharge port formed at one end of the discharge hook connecting member is equal to or larger than the inner diameter of the flexible hose ,
In addition, the suction hook connecting member includes a fixing member fixed to the outer peripheral surface of the flexible hose, and a rotating member held by the fixing member and rotatable on the outer peripheral surface of the flexible hose. It is characterized in that there.

In the present invention, the connecting member for connecting the flexible hose to the holding member and the foreign matter collecting means is provided around the end of the flexible hose, and the inner diameter of the suction port formed at one end of the suction hook connecting member is Because the inner diameter of the discharge port formed at one end of the discharge hook connecting member is the same as or larger than the inner diameter of the flexible hose Foreign substances (for example, nails, screws, other metal pieces, small crushed debris, etc.) contained in the sucked dust are not caught in the flexible hose.

According to a second aspect of the present invention, there is provided a nail extractor having a nail head engaging portion in which a notch into which a nail head is inserted is formed at a tip end, a nail pulled out by the nail extractor, and dust generated with a nail extracting action. A flexible hose that serves as a suction conveyance path, and the nail extractor is rotatably held around the base of the nail extractor as a fulcrum, and the suction hose end of the flexible hose is positioned at a position facing the notch of the nail head engaging portion. A dust suction device comprising a holding member for holding,
The flexible hose is connected to the holding member via a suction hook connecting member that is looped around the flexible hose end, and the discharge of the flexible hose is looped around the hook end. It is connected to the foreign matter collecting means for collecting the sucked nail and dust through the discharge hook connecting member, and the inner diameter of the suction port formed at one end of the suction hook connecting member is the inner diameter of the flexible hose. And the inner diameter of the discharge port formed at one end of the discharge hook connecting member is the same as or larger than the inner diameter of the flexible hose ,
In addition, the suction hook connecting member includes a fixing member fixed to the outer peripheral surface of the flexible hose, and a rotating member held by the fixing member and rotatable on the outer peripheral surface of the flexible hose. It is characterized in that there.

For example, when removing the asbestos slate laid on the roof, the nail that has been pulled out by nail removal and the dust generated by the nail removal action and the nail pulling action is cut into the nail head engaging portion. It is sucked by a suction device such as a vacuum cleaner through a flexible hose in which a suction end of the suction hook is disposed at a facing position. For this reason, asbestos is not scattered and the asbestos removal operation can be performed safely and efficiently. In addition, since the suction end of the flexible hose is held by the holding member via the suction hook connecting member having the suction port formed at one end, the suction port of the suction hook connecting member is mistaken during suction. Does not stick to the floor and the suction air volume decreases at a stretch.

In the refuse suction device according to the first and second inventions, the suction hook connecting member is fixed to the outer peripheral surface of the flexible hose, and is held by the fixing member, and the outer periphery of the flexible hose And a rotating member that is rotatable on the surface .
In this configuration, since the flexible hose is rotatable at the connecting portion with the holding member, even when the flexible hose is twisted during the nail pulling operation, the flexible hose can be rotated by rotating the rotating member of the suction hook connecting member. Can be easily eliminated.

Further, in the dust suction device according to the first and second inventions, one end portion is attached to the fixing member constituting the suction hook connecting member, and the ring-shaped member formed on the outer peripheral surface of the flexible hose. The fixing member is fixed to the flexible hose by the first locking member in which the other end is disposed between the protrusions, and one end of the discharge hook connecting member is attached to the flexible hose. The discharge hook connecting member may be fixed to the flexible hose by a second locking member in which the other end is disposed between ring-shaped protrusions formed on the outer peripheral surface.
The movement of the locking member is constrained by the protrusion formed on the outer peripheral surface of the flexible hose, and the connecting member is fixed to the outer peripheral surface of the flexible hose. In this configuration, since the locking member does not protrude inward from the inner peripheral surface of the flexible hose, not only nails and dust are caught on the locking member, but also the connecting member is mechanically fixed to the flexible hose. It can be firmly fixed as compared with the case of simply fixing with an adhesive.

In the dust suction device according to the first and second inventions, it is preferable that the inner peripheral surface of the flexible hose is smooth.
Here, the above “smooth” includes not only a flat and smooth surface but also a smooth surface having a curved surface.
In this configuration, since a flexible hose having a smooth inner peripheral surface is used, foreign matter contained in the sucked dust, for example, a nail, is not caught in the flexible hose, and nail clogging does not occur.

In the refuse suction device according to the first and second inventions, the flexible hose preferably has an inner diameter of 24 to 28 mm.
When the inner diameter of the flexible hose is less than 24 mm, there is a problem that the pressure loss in the flexible hose increases and the suction air speed becomes too low. On the other hand, if the inner diameter of the flexible hose exceeds 28 mm, the suction force is insufficient and a suction failure occurs.

In the dust suction device according to the present invention, the suction hook connecting member and the discharge hook connecting member for connecting the flexible hose to the holding member and the foreign matter collecting means are respectively mounted on the end of the flexible hose, and the suction hook connecting member is provided. The inner diameter of the suction port formed at one end of the discharge hose is the same as or larger than the inner diameter of the flexible hose through the taper portion, and the inner diameter of the discharge port formed at one end of the discharge hook connecting member is flexible. Since the inner diameter of the hose is equal to or larger than the inner diameter of the hose, the foreign matter contained in the sucked dust is not caught in the flexible hose. For this reason, there is no need to interrupt the work, and the dust can be efficiently removed by suction.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.

FIG. 1 is a perspective view, FIG. 2 is a side view, and FIG. 3 is a plan view of a dust suction device 10 according to an embodiment of the present invention. FIG. 4 is a plan sectional view of the suction hose portion of the flexible hose 20, and FIG.

As shown in FIG. 1, the dust suction device 10 includes a nail extractor 11, a flexible hose having a flexibility that serves as a suction conveyance path for dust including a nail extracted by the nail extractor 11 and dust generated by the nail extraction action. 20 and a holding member 15 for holding a nail extractor 11 and a suction end of the flexible hose 20.

The nail puller 11 is substantially perpendicular to the nail head engaging portion 12 starting from the base end of the nail head engaging portion 12 and a nail head engaging portion 12 in which a notch 13 into which the nail head is inserted is formed at the distal end. And has a rod-shaped handle portion 14 extending in the direction to be viewed, and has an L-shape when viewed from the side. The nail head engaging portion 12 has a tapered shape with a sharp tip when viewed from the side (see FIG. 2), and a cut 13 formed at the tip of the nail head engaging portion 12 is U-shaped when viewed from above. (See FIG. 3). By making the cut 13 into such a shape, the extracted nail does not bite into the cut 13 and can be easily removed from the cut 13.

The flexible hose 20 has a smooth inner peripheral surface as opposed to an outer peripheral surface in which ring-shaped protrusions 20a are formed at predetermined intervals in the length direction (see FIG. 4). Since the inner peripheral surface is smooth, the sucked nail is not caught in the flexible hose 20, and clogging of the nail does not occur. The protruding portion 20a is formed of a hard polyvinyl chloride resin, and other than that is a soft polyvinyl chloride resin, and further contains a resin having an antistatic function so that dust does not adhere to the flexible hose 20. The flexible hose 20 is transparent so that the inside of the flexible hose 20 can be seen from the outside.
The inner diameter of the flexible hose 20 is preferably 24 to 28 mm in consideration of the power of the vacuum cleaner used as the suction machine, the length of the nail fixing the asbestos slate, and the like.

The holding member 15 includes a pair of side plates 15a disposed opposite to each other and a pair of bottom plates 15b provided between the pair of side plates 15a. An opening 22 is provided between the bottom plate 15b and the bottom plate 15b.
Between the pair of side plates 15a, the nail extractor 11 and the flexible hose 20 are arranged with the notch 13 formed in the nail head engaging portion 12 of the nail extractor 11 and the suction end surface of the flexible hose 20 facing each other. The nail head engaging portion 12 is pivotally supported by a pair of side plates 15a and a screw 23 penetrating the nail head engaging portion 12, and the suction hook end portion of the flexible hose 20 is interposed via a suction hook connecting member 16 described later. Are connected to the pair of side plates 15a.

In addition, in order to prevent dust generated by the nail extraction action from scattering, the suction member portion of the holding member 15 and the flexible hose 20 is covered with a cover member 21 made of a transparent sheet having flexibility.

At the end of the suction hose of the flexible hose 20, a suction hook connecting member 16 is provided. The suction flap connecting member 16 is located between the first fixing member 17 and the second fixing member 18 fixed to the outer peripheral surface of the flexible hose 20, and between the first fixing member 17 and the second fixing member 18. The rotating member 26 is sandwiched between the first fixing member 17 and the second fixing member 18 and is rotatable on the outer peripheral surface of the flexible hose 20.
The rotating member 26 has a cylindrical shape, and is connected to a pair of side plates 15 a constituting the holding member 15 via a pair of screws 24 protruding in the radial direction of the rotating member 26 with the rotating member 26 interposed therebetween. On the other hand, each of the first fixing member 17 and the second fixing member 18 is formed in a cylindrical shape, and one end portion is attached to the first fixing member 17 or the second fixing member 18, and on the outer peripheral surface of the flexible hose 20. A pin 30 (first locking member) or a screw 31 (first locking member) having a smooth tip with the other end disposed between the adjacent protruding portion 20a and the protruding portion 20a. Is fixed to the outer peripheral surface of the flexible hose 20.
Further, on the outer peripheral surfaces of the first fixing member 17 and the second fixing member 18, step portions 17 a and 18 a having one outer diameter smaller than that of the other one are formed, respectively. 26 rotates on the stepped portions 17a and 18a.

As shown in FIG. 4, the inner peripheral surface from the suction end face of the flexible hose 20 to the edge of the suction port 19 formed at one end of the suction hook connecting member 16 is covered with a caulking material, and outwardly. The taper part 32 which expands toward the diameter is formed. That is, the inner diameter of the suction port 19 is the same as or larger than the inner diameter of the flexible hose 20.
In addition, as for the inclination angle of the taper part 32, 10 degrees-50 degrees are preferable. If the inclination angle exceeds 50 °, the nail is likely to be caught, and conversely if the inclination angle is less than 10 °, the suction of the flexible hose 20 is too long from the end face of the hook to the edge of the inlet 19. Become.

On the other hand, a discharge hook connecting member 33 is provided around the discharge hook end of the flexible hose 20. As shown in FIG. 5, the discharge flap connecting member 33 includes an adapter 34 inserted into a coupler 43 (see FIG. 7) described later, a first sleeve 35 having one end screwed into the adapter 34, And a second sleeve 36 fitted into the sleeve 35.
The adapter 34 has a cylindrical shape, and a concave portion 34a that engages with a cam portion 44a of a coupler 43, which will be described later, is formed at one end portion over the entire outer periphery. Further, on the inner peripheral surface of the other end portion of the adapter 34, a female screw portion 34 b that is screwed with a male screw portion 35 a formed at one end portion of the first sleeve 35 is formed.
The flexible hose 20 is inserted into the second sleeve 36. One end of the first sleeve 35 and the second sleeve 36 is attached to the first sleeve 35 and / or the second sleeve 36, and adjacent ridges 20 a formed on the outer peripheral surface of the flexible hose 20. The other end portion is disposed between the protruding portion 20a and the tip of the flexible hose 20 is fixed to the outer peripheral surface of the flexible hose 20 by a smooth screw 37 (second locking member).
The inner diameter of the discharge port 38 formed at one end of the discharge hook connecting member 33 is the same as or larger than the inner diameter of the flexible hose 20.

Next, the usage method of the dust suction apparatus 10 which concerns on one embodiment of this invention is demonstrated using FIG.6 and FIG.7.
When the dust suction device 10 is connected to a suction device 42 such as a vacuum cleaner, the dust suction device 10 is not directly connected to the suction device 42, and as shown in FIG. 6, a foreign matter collecting container 40 (foreign matter collecting means). Connect via. That is, the flexible hose 20 of the dust suction device 10 is connected to the elbow pipe 27 extending from the foreign matter collection container 40 using the lever type coupling 29, and the flexible hose 41 connected to the suction machine 42 is connected to the foreign matter collection container. A lever-type coupling 29 is connected to an elbow pipe 28 extending from 40.

The lever type coupling 29 is composed of the above-described adapter 34 and a cylindrical coupler 43 into which the adapter 34 is inserted (see FIG. 7). A pair of openings 43a facing each other across the central axis is formed on the side surface of the coupler 43, and the cam part 44a is pivoted on the outside of each opening 43a (on the outer peripheral surface of the coupler 43). A cam lever 44 is attached. The cam portion 44 a can be moved into and out of the coupler 43 from the opening 43 a by the rotation of the cam lever 44. When the cam lever 44 is tilted in a state where the adapter 34 is inserted into the coupler 43, the cam portion 44a engages with the concave portion 34a while rotating on the concave portion 34a surface of the adapter 34, and the adapter 34 and the coupler 43 are in a coupled state. Locked. On the other hand, when the cam lever 44 in the locked state is rotated 180 degrees, the cam portion 44a is rotated out of the coupler 43 to be unlocked.

The foreign matter collection container 40 includes a detachable lid 45 for facilitating disposal of stored nails and dust. Moreover, the foreign material collection container 40 is comprised with the transparent member, and can confirm now easily the quantity of the nail | claw and dust which are accommodated.

The nail pulled out by the dust suction device 10 is stored in the foreign matter collection container 40 via the flexible hose 20. In this way, even when dust gradually accumulates in the suction machine 42 and the suction air volume decreases, the nail collects in the slack portion of the flexible hose 20 and closes the flexible hose 20 so that it cannot be sucked at once. Can be prevented. Further, since the nail does not reach the suction device 42, the suction capability of the suction device 42 can be maintained for a long time.

When removing the asbestos slate 39 laid on the roof, the holding member 15 of the dust suction device 10 is placed on the asbestos slate 39, and the asbestos is formed in the notch 13 formed in the nail head engaging portion 12 of the nail extractor 11. A nail head of a nail (not shown) fixing the slate 39 to a base member (not shown) is inserted. Then, the handle 14 of the nail extractor 11 is rotated to pull out the nail. The pulled nail is sucked from the suction port 19 and stored in the foreign matter collection container 40 via the flexible hose 20. Incidentally, when the length of the flexible hose 20 is about 3 m, the wind speed of the suction port 19 is about 25 to 29 m / s.

Although one embodiment of the present invention has been described above, the present invention is not limited to the configuration described in the above-described embodiment, and is within the scope of matters described in the claims. Other possible embodiments and modifications are also included. For example, in the above embodiment, the holding member holds the nail punch and the suction end of the flexible hose, but the suction of the flexible hose may hold only the end of the hook. Moreover, although the connecting member is fixed to the flexible hose only with the locking member, an adhesive may be used in combination.

1 is a perspective view of a dust suction device according to an embodiment of the present invention. It is a side view of the dust suction apparatus. It is a top view of the dust suction apparatus. It is a plane sectional view of a suction hose part of a flexible hose. It is a half sectional view of a discharge hose part of a flexible hose. It is a schematic diagram for demonstrating the usage method of the dust suction apparatus which concerns on one embodiment of this invention. It is a half sectional view of the A section of FIG.

10: dust suction device, 11: nail removal, 12: nail head engaging portion, 13: notch, 14: handle, 15: holding member, 15a: side plate, 15b: bottom plate, 16: suction hook connecting member, 17: First fixing member, 17a: stepped portion, 18: second fixing member, 18a: stepped portion, 19: suction port, 20: flexible hose, 20a: ridge portion, 21: cover member, 22: opening, 23, 24: Screw, 26: Rotating member, 27, 28: Elbow pipe, 29: Lever coupling, 30: Pin (first locking member), 31: Screw (first locking member), 32: Taper portion, 33: discharge hook connecting member, 34: adapter, 34a: recess, 34b: female screw portion, 35: first sleeve, 35a: male screw portion, 36: second sleeve, 37: screw (second Locking member), 38: outlet, 39: asbestos Rate, 40: foreign matter collecting container (foreign matter trapping means), 41: flexible hose, 42: suction unit, 43: coupler, 43a: opening, 44: cam lever, 44a: cam portion, 45: lid

Claims (5)

A dust suction device for sucking and removing dust,
A flexible hose that serves as a suction conveyance path for the dust, and a holding member that holds a suction end of the flexible hose;
The flexible hose is connected to the holding member via a suction hook connecting member that is looped around the flexible hose end, and the discharge of the flexible hose is looped around the hook end. The suction port connected to the foreign matter collecting means for collecting the sucked dust through the discharge hook connecting member, and the inner diameter of the suction port formed at one end of the suction hook connecting member is the same as the inner diameter of the flexible hose Alternatively, the inner diameter is larger than that through the tapered portion, and the inner diameter of the discharge port formed at one end of the discharge hook connecting member is equal to or larger than the inner diameter of the flexible hose ,
In addition, the suction hook connecting member includes a fixing member fixed to the outer peripheral surface of the flexible hose, and a rotating member held by the fixing member and rotatable on the outer peripheral surface of the flexible hose. dust suction device, characterized in that there. A nail puller having a nail head engaging portion in which a notch into which a nail head is inserted is formed at the tip, a flexible hose serving as a suction conveyance path for the nail pulled out by the nail puller and dust generated by the nail pulling action And a holding member for holding the nail punch so as to be rotatable about the base of the nail punch and a holding member for holding the suction end of the flexible hose at a position facing the notch of the nail head engaging portion. A suction device,
The flexible hose is connected to the holding member via a suction hook connecting member that is looped around the flexible hose end, and the discharge of the flexible hose is looped around the hook end. It is connected to the foreign matter collecting means for collecting the sucked nail and dust through the discharge hook connecting member, and the inner diameter of the suction port formed at one end of the suction hook connecting member is the inner diameter of the flexible hose. And the inner diameter of the discharge port formed at one end of the discharge hook connecting member is the same as or larger than the inner diameter of the flexible hose ,
In addition, the suction hook connecting member includes a fixing member fixed to the outer peripheral surface of the flexible hose, and a rotating member held by the fixing member and rotatable on the outer peripheral surface of the flexible hose. dust suction device, characterized in that there. 3. The dust suction device according to claim 1 , wherein one end portion is attached to a fixing member that constitutes the suction hook connecting member, and the ring-shaped protruding portion formed on the outer peripheral surface of the flexible hose. The fixing member is fixed to the flexible hose by the first locking member in which the other end portion is disposed,
The discharge hook connecting member has one end attached thereto, and the second locking member in which the other end is disposed between the ring-shaped protrusions formed on the outer peripheral surface of the flexible hose, A dust suction device, wherein a discharge hook connecting member is fixed to the flexible hose. The dust suction device according to any one of claims 1 to 3 , wherein an inner peripheral surface of the flexible hose is smooth. The dust suction device according to any one of claims 1 to 4 , wherein an inner diameter of the flexible hose is 24 to 28 mm.

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