JPH0615916U - Combined use of hammer drill and wire cleaner - Google Patents

Abstract

(57) [Abstract] [Purpose] An electric hammer drill for drilling and chipping, and an electric wire cleaner for cleaning pipes, which had to be individually installed in the past. Reduce costs and simplify carrying and use. [Structure] A shank (6) is provided at the center of the rear end of the wire cleaner drum (3) in which the wire rope (7) is freely retracted and wound into the internal space, and this shank (6) can be used as a drill and a chisel. A stand that holds the body of the hammer drill (1) while rotatably supporting the front end of the wire cleaner drum (3) that is fitted to the chuck (2) of the electric hammer drill (1) ( It is held by 10). In this state, the pipe is cleaned as a wire cleaner, disassembled, and the hammer drill (1) alone is used to punch and chip.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is a hammer drill with a single machine that has the functions of an electric hammer drill that is used separately for drilling and chipping, and an electric wire cleaner that cleans the inside of piping. It is related to a wire cleaner combined use machine.

[0002]

[Prior art]

 When repairing waterworks, it is necessary to have an electric hammer drill for drilling holes and chiseling with chisel, and an electric wire cleaner for cleaning pipes such as removing clogging of sewer pipes. In the past, each had its own machine.

[0003]

[Problems to be solved by the device]

 Installing a hammer drill and a wire cleaner separately imposes a heavy burden on equipment costs, and it is bulky to carry in a vehicle at all times.

The object of the present invention is to configure a wire cleaner to operate using a motor of a hammer drill, and to perform three functions of drilling, chipping and cleaning a pipe by one machine. , To reduce equipment costs and to facilitate the use.

[0005]

[Means for Solving the Problems]

 This invention to achieve the above-mentioned object is a rear end center of a wire cleaner drum in which a wire rope is freely wound in and out from a wire inlet / outlet provided at the front end of a hemispherical surface of a substantially hemispherical plastic hollow body. Front leg fixed to the front support member that rotatably supports the wire inlet / outlet of the wire cleaner drum, by fitting a shank to a chuck of a hammer drill that can selectively use a drill and chisel. A hammer drill wire holding the wire cleaner drum and the hammer drill by a stand formed by connecting a rear leg fixed to a substantially U-shaped rear support member that holds the body portion of the hammer drill. -It is a machine that doubles as a cleaner.

Further, it is a hammer drill / wire cleaner dual-purpose machine in which the tip of the wire rope of the wire cleaner drum is formed in a spiral shape having a relatively large diameter.

[0007]

[Action]

 Fit the shank at the rear end of the wire cleaner drum into the chuck of the hammer drill, insert the wire pulled out from the wire inlet / outlet at the end into the pipe, and start the hammer drill.The wire of the hammer cleaner rotates the wire cleaner drum. Then, the wire can be cleaned by stirring the inside of the pipe to remove clogging, etc.

[0008] At this time, if the tip of the wire rope has a relatively large-diameter spiral portion, it can be inserted even through a narrow opening through which the diameter of the wire passes, and if the spiral portion is inserted into the pipe. The elasticity of the wire shrinks the diameter along the inner diameter of the pipe, so the inner wall of the pipe is scratched and cleaned cleanly.

If the hammer drill is removed from the stand and the wire cleaner drum, it can be used as a single hammer drill for drilling with the drill attached to the chuck and for chipping with the chisel attached.

In short, this machine combines a hammer drill and a wire cleaner into one unit, and has three functions of drilling, chipping, and cleaning pipes.

[0011]

【Example】

 The present invention will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional side view of an essential part of the machine used as a wire cleaner, and (1) is an electric hammer drill with a chuck ( 2) A drill and chisel having the same shank can be fitted and mounted respectively, and the operation can be switched between rotation and impact. Drilling with a drill and chisel with a chisel are possible. This is a power tool that can perform two types of work, such as chiseling, and it is a well-known electric tool that is widely used, and detailed structure thereof will be omitted.

(3) is a wire cleaner drum, which is composed of a substantially hemispherical hollow plastic body, and is provided with a wire inlet / outlet (4) composed of a metal cylinder projecting forward from the top of the hemispherical surface. At the center of the end, a bowl-shaped shank support (5) made of metal is recessed and attached, and a shank (6) fitted to the chuck (2) of the hammer drill (1) is attached to the center of the recess. It sticks out and sticks out.

Reference numeral (7) is a wire rope, which is wound inside the wire cleaner drum (3) from the wire inlet / outlet (4) leaving the tip end thereof and elastically elastically attached to the inner circumference of the wire cleaner drum (3) by its own elasticity. It can be pulled out by any length by pulling it by hand. A one-touch connecting tool (8) is fixed to the tip of the wire rope (7), and a cleaning tool (9) such as a brush shown by an imaginary line can be attached / detached with one touch.

Further, the tip of the wire rope (7) may be a spiral portion (7a) having a relatively large diameter (D 1) as shown in FIG. 2, and the spiral portion (7a) is the wire rope (7). It can be inserted into the tube as long as there is an opening for the tip of the tube, and the flexibility of the spiral part (7a) allows the spiral part (7a) to freely shrink in diameter according to the inner diameter of the tube. D) Can follow the inside diameter of the following tubes:

Thus, when the hammer drill (1) is started and the wire cleaner drum (3) is rotated, the wire rope (7) also expands the wire cleaner drum (3) by its elastic expansion force and the centrifugal force generated by the rotation. By being pressed against the inner circumference, it rotates integrally with the wire cleaner drum (3), and the inner wall of the pipe can be cleaned cleanly by rubbing it with the spiral portion (7a), which is very convenient. Since the spiral portion (7a) can pass through the wire entrance / exit (5) by its own elasticity, it can be housed in the drum body (4).

FIG. 3 is a view of FIG. 1 taken along the line AA, in which a shank (6) is fixed to the center, and this shank (6) has two vertical grooves (6a) on its outer circumference. It is formed in a symmetrical position, and when it fits in the center hole of the chuck (2), the protrusion inside the chuck engages with this vertical groove (6a) and the rotation of the hammer drill (1) is changed from the shank (6). It is transmitted to the wire cleaner drum (3).

Reference numeral (10) is a stand, and a front support member (11) formed of a ball bearing and a rear support member (12) having a U-shape and having an upper end curved rearward are inverted V when viewed from the front. The front legs (13) and the rear legs (14) each having a V-shape are fixed to the upper ends thereof, and large-diameter leg end portions () formed on the left and right lower ends of the front legs (13) and the rear legs (14). 13a) and (14a) are connected by two connecting bars (15) and (15) parallel to the front-rear direction. The code (16) is a code for hanging the hammer drill (1) when not in use.

The rear support member (12) shown by dots of the stand (10) in the figure, the front leg (13) and the front half of the connecting bar (15) are covered with an elastic cushioning material such as rubber. , A hammer drill (1) clamped by the rear support member (12), and a sink or bathtub that may come into contact with the front leg (13) or the connecting bar (15) when used as a wire cleaner. This is to prevent damage.

As shown in FIG. 1, the stand (10) rotatably supports the wire inlet / outlet (4) of the wire cleaner drum (3) on the front support member (11), and at the rear support member (12). The body of the hammer drill (1) with the shank (6) fitted to the chuck (2) is pushed into the center of the U-shape from above to clamp it. At this time, the hammer drill (1) shifts backward. A stopper (17) is provided so as to protrude from the hammer drill (1) so that it does not exist, and the stopper (17) is brought into contact with the front side of the rear support member (12).

As described above, the stand (10) is assembled to the hammer drill (1) and the wire cleaner drum (3) in the state shown in FIG. 1 in the front support member (11) and the rear support member (12). It's just a snap and almost no need to use a single screw, so it's extremely easy and quick with almost one-touch, and disassembly is just as easy.

In the figure, (18) is a main handle of the hammer drill (1), in which a switch (19) is incorporated. (20) is a sub handle, which is attached to the neck portion between the body of the hammer drill (1) and the chuck (2), and is bent into an L shape.

When using this machine as a wire cleaner, combine the hammer drill (1), the wire cleaner drum (3), and the stand (10) in the state of FIG. 1 to attach the wire rope (7). When pulling out the required length, inserting it into the pipe, and holding it with the main handle (18) and the sub handle (20) or the stand (10). ) And the wire cleaner drum (3) are removed, and only the hammer drill (1) is detached, and the chuck (2) is fitted with a drill or chisel and drilled or chipped as before.

[0023]

[Effect of device]

 According to the hammer drill / wire cleaner dual-purpose machine according to the present invention described above, by fixing the shank to the wire cleaner drum, the hammer drill and the wire cleaner drum can be easily docked and the docked state can be maintained. By installing a stand that can be attached and detached very easily, the hammer drill and wire cleaner, which had to be equipped as separate machines in the past, can be combined into one unit to perform the functions of both. In addition, it is not too bulky to carry and the hammer drill, wire cleaner drum and stand can be assembled and disassembled very easily for use, which shortens the preparation time and improves work efficiency. .

[Brief description of drawings]

FIG. 1 is a side view showing a longitudinal section of a wire cleaner drum with a hammer drill and a wire cleaner drum docked.

FIG. 2 is a side view of a wire cleaner drum in which a tip end portion of a wire has a spiral shape.

FIG. 3 is a diagram of FIG. 1 viewed in the direction of line AA.

FIG. 4 is a perspective view of a stand.

[Explanation of symbols]

 1 Hammer Drill 2 Chuck 3 Wire Cleaner Drum 4 Wire Entry / Exit 6 Shank 7 Wire Rope 7a Spiral Part 10 Stand 11 Front Support Member 12 Rear Support Member 13 Front Leg 14 Rear Leg 15 Connecting Bar

Claims (2)

[Scope of utility model registration request] 1. A shank projecting from a wire entrance provided at the front end of a hemispherical surface of a substantially hemispherical plastic hollow body to the center of the rear end of a wire cleaner drum in which a wire rope is freely taken in and out of the hollow interior. Then, the shank is fitted to a chuck of a hammer drill capable of selectively using a drill and a chisel, and a front leg fixed to a front support member that rotatably supports a wire inlet / outlet of the wire cleaner drum, and a body of the hammer drill. A hammer drill / wire cleaner dual-purpose machine characterized in that the wire cleaner drum and the hammer drill are held by a stand formed by connecting a rear leg fixed to a substantially U-shaped rear support member that holds the portion. 2. The combined hammer drill and wire cleaner machine according to claim 1, wherein the tip end of the wire rope of the wire cleaner drum is formed in a spiral shape having a relatively large diameter.