JP2005305577A - Electric drilling device with dust collection function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose an electric drilling device with a dust collection function capable of collecting chips generated by an electric drill during drilling without scattering them to the surroundings. <P>SOLUTION: The electric drilling device 1 with a dust collection function is composed such that a dust collection pipe 4 is attached to an electric drill body 2 by a fixing band 8 and a dust collection lid 5 is attached to the tip of the pipe 4. The dust collection pipe 4 is telescopic and can be contracted along with a drill 21 which is pressed into the surface 11 of a drilling target member. Therefore, the dust collection lid 5 is constantly held in a state of firmly adhering on the surface 11 of the member. Consequently, it is possible to prevent the scattering of the chips to the surroundings by the dust collection lid 5 surrounding a drilling position. The chips are collected into a dust collection bag 6 by being constantly sucked toward a suction hole with sufficient suction force. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric drill apparatus used for drilling holes in wood, metal members, and the like, and more particularly to an electric drill apparatus having a dust collecting function for collecting chips generated during drilling.

  In an electric drill apparatus used in a construction site such as a building, since the chips generated by drilling are scattered around, a cleaning operation is necessary after the operation is completed. For example, when a wooden flooring material or the like is attached to a steel frame base, it is necessary to perform screw hole processing for fixing the flooring material to the steel base. If the swarf (iron powder) generated during screw hole processing is not removed reliably, red rust will be generated in the iron powder, causing discoloration of the flooring material.

  However, conventionally, no simple dust collection system capable of efficiently sucking chips generated by drilling work has been proposed.

  An object of the present invention is to propose an electric drill device with a dust collecting function that can be drilled while sucking generated chips and is convenient for carrying.

In order to solve the above problems, the electric drill apparatus with a dust collection function of the present invention is
A portable electric drill body,
A dust collector,
A dust collecting pipe attached to the electric drill body;
A dust collection lid attached to the tip of the dust collection pipe;
The rear end of the dust collecting pipe is connected to the suction port of the dust collector through a dust bag.
The dust collecting lid includes a lid plate and an edge flange formed on the outer peripheral edge of the lid plate,
The lid plate is formed with a suction hole communicating with the dust collecting pipe and a drill passage hole for passing a drill,
The dust collecting pipe is extendable in the axial direction of the drill, and is always biased by a spring force in the extending direction.

  In the electric drill device with a dust collection function having this configuration, a dust collection lid is pressed against the surface of a plate material or the like to be drilled, and in this state, a drilling operation is performed with a drill. Since the dust collecting pipe with the dust collecting lid attached is extendable in the drill axis direction, the dust collecting pipe shrinks as drilling progresses, and the edge flange of the dust collecting lid is always the plate to be drilled. The state of being in close contact with the surface such as is maintained. Therefore, the chips generated from the perforated part are sucked toward the suction hole formed in the dust collecting lid without scattering around, and are collected from here through the dust collecting pipe to the dust collecting bag. . When the drill is pulled up after the drilling is finished, the dust collecting pipe is restored to the extended state by the spring force.

  Here, if a shoulder band is attached to the dust collector, a hole can be drilled at a necessary location while carrying the dust collector.

  As described above, at the time of drilling work by the electric drill apparatus with a dust collecting function of the present invention, the dust collecting lid is in close contact with the surface to be drilled while surrounding the drilling position. Therefore, the generated chips can be efficiently sucked toward the suction hole formed in the dust collecting lid without being scattered around. Moreover, it is easy to move to a work place while carrying the dust collector.

  Hereinafter, an example of an electric drill apparatus with a dust collecting function to which the present invention is applied will be described with reference to the drawings.

  FIG. 1 is a perspective view of an electric drill apparatus with a dust collecting function of this example, and FIG. 2 is a partial perspective view when viewed from the drill tip side. The electric drill device 1 with a dust collecting function includes a portable electric drill main body 2, a dust collector 3, a dust collecting pipe 4 attached to the electric drill main body 2, and a dust collecting lid 5 attached to the tip of the dust collecting pipe 4. have. The rear end 4 a of the dust collection pipe 4 is connected to the suction port 3 a of the dust collector 3 through a cylindrical case 7 in which the dust collection bag 6 is accommodated.

  The dust collecting pipe 4 protrudes in a coaxial state from a large-diameter pipe 41 attached to the side surface of the electric drill main body 2 by a fixing tool such as a fixing band 8 and a telescopic state from the tip of the large-diameter pipe 41. A small-diameter pipe 42 and a flexible hose 43 connected to the rear end of the large-diameter pipe 41 are provided. The small-diameter pipe 42 is held in an extended state shown in the drawing by a built-in spring (not shown). It is possible to push the small diameter pipe 42 into the large diameter pipe 41 with a force larger than the spring force.

  The dust collecting lid 5 attached to the tip of the small-diameter pipe 42 has a flat cup shape, and has a circular lid plate 51 and an annular edge extending in an orthogonal direction from the outer peripheral edge of the lid plate 51. Part flange 52 is provided. A suction hole 53 into which the small-diameter pipe tip 42a of the dust collection pipe 4 is inserted is formed at a position shifted from the center of the lid plate 51 to one side. In addition, a drill passage hole 54 for passing the drill 21 of the electric drill main body 2 is formed at a position shifted from the center to the other side. The dust collecting pipe 4 extends in parallel with the drill 21, and a dust collecting lid 5 is attached in a perpendicular state at a position corresponding to the tip of the drill 21.

  Here, a shoulder band 9 is attached to the dust collector 3. Therefore, as shown in FIG. 3, the dust collector 3 is hung on the shoulder, and the handle 22 of the electric drill main body 2 is held with one hand, and in this state, the hole can be drilled by moving to the drilling position.

  4 to 6 are explanatory views showing the drilling operation. As shown in FIG. 4, a drill 21 is positioned on a member surface 11 to be drilled, for example, vertically. When positioning is performed in this manner, the dust collection lid 5 attached in an orthogonal state to the tip of the dust collection pipe 4 extending in parallel with the drill 21 is brought into close contact with the member surface 11. That is, the tip end surface of the annular edge flange 52 of the dust collecting lid 5 is in close contact with the member surface 11 and surrounds the drilling position. In this state, the electric drill main body 2 is driven to push the drill 21 into the member surface 11 while rotating the drill 21, whereby a hole is made. When the drill 21 is pushed into the member surface 11, the small diameter pipe 42 of the dust collecting pipe 4 is pushed into the large diameter pipe 41 accordingly.

  Therefore, as shown in FIG. 5, the dust collecting lid 5 is always held in close contact with the member surface 11. Chips generated at the time of drilling are sucked toward the suction hole 53 formed in the dust collecting lid 5, sucked up from here to the dust collecting pipe 4, and captured by the dust collecting bag 6. At the end of drilling, as shown in FIG. 6, most of the drill 21 is pushed into the member surface 11, and the small-diameter pipe 42 is also pushed into the large-diameter pipe 41 along with this, so that the protruding portion is shortened. When the drill 21 is pulled out from the member surface 11 after completion of drilling, the small-diameter pipe 42 is extended from the large-diameter pipe 41 by the spring force, and returns to the initial state shown in FIG. 1 or FIG.

  This exchange is performed when the dust bag 6 is full. Therefore, it is desirable that the case 7 of the dust bag 6 has a structure that allows the dust bag 6 to be easily replaced.

  Thus, if the electric drill apparatus with a dust collection function of this example is used, the generated chips can be simultaneously sucked into the dust collection bag 6 and collected while performing a drilling operation. In addition, since the dust collection lid 5 attached to the tip of the elastic dust collection pipe 4 can be kept in close contact with the surface of the member to be drilled at all times, it is always possible to suck the chips with sufficient suction force, Chips do not scatter around.

It is an external appearance perspective view of the electric drill apparatus with a dust collection function to which the present invention is applied. It is a fragmentary perspective view at the time of seeing from the drill front end side of the electric drill apparatus of FIG. It is explanatory drawing which shows the state which carried the electric drill apparatus of FIG. It is explanatory drawing which shows the drilling operation | movement of the electric drill apparatus of FIG. It is explanatory drawing which shows the drilling operation | movement of the electric drill apparatus of FIG. It is explanatory drawing which shows the drilling operation | movement of the electric drill apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric drill apparatus, 2 Electric drill main body, 21 Drill, 22 Handle, 3 Dust collector, 3a Suction port, 4 Dust collection pipe, 41 Large diameter pipe, 42 Small diameter pipe, 43 Flexible hose, 5 Dust collection cover, 51 Cover Plate, 52 Edge flange, 53 Suction hole, 54 Drill passage hole, 6 Dust collection bag, 7 Case, 8 Fixed band, 9 Shoulder band

Claims (2)

A portable electric drill body,
A dust collector,
A dust collecting pipe attached to the electric drill body;
A dust collection lid attached to the tip of the dust collection pipe;
The rear end of the dust collecting pipe is connected to the suction port of the dust collector through a dust bag.
The dust collecting lid includes a lid plate and an edge flange formed on the outer peripheral edge of the lid plate,
The lid plate is formed with a communication hole communicating with the dust collecting pipe and a drill passage hole for passing a drill,
The electric drill device with a dust collecting function, wherein the dust collecting pipe is extendable in the axial direction of the drill and is always urged by a spring force in the extending direction. In claim 1,
An electric drill apparatus with a dust collecting function, wherein a shoulder band for carrying the dust collector is attached to the dust collector.

Images