JP3965503B2 - Drilling tool with chip receiving cover - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a punching device for drilling through holes in a body to be drilled, and in particular, having a simple structure and scattering of chips generated when drilling through holes in a body to be drilled. The present invention relates to a punching tool provided with a chip receiving cover that can surely prevent spillage and can easily eliminate the chip.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a wide variety of drilling tools provided with a cover body for preventing shattering scattering generated when a through hole is drilled in a drilled body have been developed and are widely available on the market.
[0003]
On the other hand, as a drilling tool provided with a cover body that receives a chip generated when drilling a through hole in a drilled body such as a ceiling material or a wall material, for example, a drilling tool described in Japanese Utility Model Publication No. 61-28653 is disclosed. Has been.
[0004]
[Problems to be solved by the invention]
By the way, in the drilling tool provided with the cover body which receives the conventional chip represented by the drilling tool described in Japanese Utility Model Publication No. 61-28653, the drilling tool in the horizontal direction such as a ceiling material is used. When drilling through holes, for example, when drilling through holes in wall materials so that the front of the wiring box placed behind the wall to be erected faces the wall surface, cut it during the drilling operation. Although the drilling operation can be performed without splashing debris, if the drilling tool is moved away from the drilled body after being drilled, or if the drilling tool is tilted, the cutting housed in the cover body is cut. There was a problem that the residue spilled from this cover body.
[0005]
The present invention has been devised in view of such a situation, and the problem to be solved is to solve the above-described problems and problems of the conventional drilling tool. And the purpose is that the structure is simple, it is possible to surely prevent the spilling and spilling of the chips generated when the through holes are drilled into the drilled body, and the chips can be easily eliminated A drilling tool provided with a chip receiving cover is provided.
[0006]
[Means for Solving the Problems]
The gist of the invention of claim 1 employed as a means for solving the above-mentioned problems is that the through hole is provided with an end face that comes into contact with the peripheral edge of the through hole to be drilled in the drilled body. A chip receiving cover body that prevents the chips generated when the dust is scattered and collects the chips and is housed inside the cover body and protrudes while rotating forward from the end face of the cover body A drilling tool having a drilling blade for drilling the through hole into the drilled body,
The chip receiving cover body includes a cup-shaped leg having the opened end face, and a discharge port for removing the chips collected inside the chip receiving cover body on the side wall surface of the leg. The discharge port is detachably covered by a discharge body, and the discharge body covers a portion of the side wall surface extending from the bottom surface and the side surface facing the opening of the leg in a state of covering the discharge port. and it is characterized in that it is formed in the dust receiving portion shape of the dustpan in order to configure.
[0007]
According to the drilling tool provided with the chip receiving cover body according to claim 1, which employs such a configuration, it occurs when a through hole is drilled in a drilled body such as a wall material or a ceiling material. The through-holes can be drilled while collecting the chips to be collected in the dust receiving part-shaped discharge body (while preventing the chips from falling off). Further, the chips collected in the discharger can be easily taken out and disposed of appropriately. In other words, when drilling a through-hole in the drilled body, it is possible not only to prevent the chips from scattering around the work site and not to contaminate the work site, but also to the chips collected in the discharge body. Can be easily discarded.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a punching tool according to the present invention will be described in detail according to an embodiment shown in the drawings.
[0011]
FIG. 1 is a partially broken front view showing a punching tool 10 provided with a chip receiving cover body of the first embodiment, and FIG. 2 is a partially broken side view of the same.
[0012]
As shown in the figure, the punching tool 20 has a rotary shaft 1 that is detachably attached to a rotary drive tool and is rotationally driven by the rotary drive tool, and one end that is detachably fixed to the rotary shaft 1 and has a wall. A center shaft 2 that provides the position of the drilling center of the through-hole formed in the material, and a central through hole that is concentric with the position of the drilling center of the through-hole are formed. A main body block 6 comprising a rotary body 5 having a perforated blade 4 which is detachably inserted and fixed by blade brackets 3 attached to opposite sides opposite to each other at a predetermined distance from the central through hole. When,
A cup-shaped leg 7b that covers the entire rotating body 5 in which a cutout outlet 7a is formed on the side wall surface, and an insertion hole 7c that is integrally formed on the top of the leg 7b and through which the rotating shaft 1 is inserted. A cover body 7 comprising: a cylindrical portion 7d; a scrap catcher 7i capable of collecting and storing scraps; and a discharge body 7e which can be detachably mounted so as to cover the entire discharge port 7a;
And a cut depth adjusting device 12 which is fixed on the upper surface of the cover body 7 and limits the moving distance of the main body block 6.
[0013]
The rotary shaft 1 is integrally provided with a gripping portion 1a that can be detachably attached to a rotary drive tool, and a housing 1b that has a cylindrical space that extends from the gripping portion 1a and opens at the tip. An attachment portion 1c that can be removably inserted into an attachment portion 2a formed on the center shaft 2 described later is formed on the shaft center. In addition, a coil spring (elastic body) that constantly urges the center shaft 2 in the protruding direction by a resilient force in the housing 1b and can be immersed in the housing 1b against the resilient force. ) 1d is decorated. One end of the spring 1d is elastically supported on the inner bottom surface of the housing 1b, and the other end is elastically supported on an attachment portion 2a formed on the center shaft 2.
[0014]
The center shaft 2 is provided with an attachment portion 2a formed in a shape corresponding to the attachment portion 1c formed in the housing 1b at one end, and the rotating shaft 2 is attached to the attachment portion 2a. A mounting portion 1c formed in the shape of the rotary shaft 1 is detachably attached, and can be fixed so as to idle with respect to the rotary shaft 1 by a stopper ring (detachment means) 2b. A tip 2c is integrally formed at the other end, and this tip 2c can be made to enter the surface of the drilled body.
[0015]
The center shaft 2 is provided with an attachment portion 2a formed in a shape corresponding to the attachment portion 1c formed in the housing 1b at one end, and the rotating shaft 2 is attached to the attachment portion 2a. A mounting portion 1c formed in the shape of the rotary shaft 1 is detachably attached, and can be fixed so as to idle with respect to the rotary shaft 1 by a stopper ring (detachment means) 2b. A tip 2c is integrally formed at the other end, and this tip 2c can be made to enter the surface of the drilled body.
[0016]
The rotating body 5 is formed with nut fixing portions formed in nut shapes on opposite sides facing each other at a predetermined distance from the center through hole, and the blade body bracket 6 is bolted to the fixing portion. It can be done.
[0017]
That is, the center shaft 2 is attached to the rotating shaft 1 and can be idled, and is urged in the protruding direction by the restoring force of the coil spring 1d built in the rotating shaft 1, but the perforation according to the present invention. When the entire tool 20 is pressed against the body to be drilled, the tip 2c enters the surface of the body to be drilled, and the center shaft 2 is moved inward of the rotating shaft 1 against the 1d spring force of the spring. The tip 2c can enter the surface of the body to be drilled so that the position of the drilling center of the through hole formed in the body to be drilled is not displaced. It is supposed to function as.
[0018]
The blade bracket 6 is integrally formed in a substantially rectangular parallelepiped shape, and a female screw is threaded on the outer side wall. The bolt head of the bolt 11 screwed to the female screw, the side wall of the blade bracket 6 and The perforating blade 4 is sandwiched between them. In addition, a long through hole is formed in the center portion of the blade bracket 6, and by screwing the tip of the bolt provided through the through hole to the fixing portion formed in the nut shape, The rotating body is fixed to both sides.
However, the shape and quantity of the blade bracket to be attached to the rotating body is not limited, and it is only necessary that each drilling blade is fixed so as to draw the same circular locus around the center of the center axis. It goes without saying that the design can be changed as appropriate.
[0019]
It is preferable that the drilling blade has a V-shaped cutting edge because the sharpness when the wall material is drilled is good.
[0020]
Next, the cover body 7 will be described.
3 is an overall perspective view showing the appearance of the cover body 7, FIG. 4 is a side view of a partially broken main part, and FIG. 5 is a bottom view.
In the figure, the cover 7 has a cylindrical portion provided with a cup-shaped leg 7b that covers the entire rotating body 5 and an insertion hole 7c that is integrally formed on the top of the leg 7b and through which the rotating shaft 1 is inserted. 7d, a scrap catcher 7h capable of collecting and storing scraps, and a discharge body 7e that is detachably locked so as to cover the whole through a locking portion 7g formed at the peripheral edge of the discharge port 7a. The side wall surface is formed with a cutout outlet 7a.
[0021]
The cup-shaped leg 7b is formed from the end surface of the cover body 7 with the end surface 7f of the leg in contact with the periphery of a through-hole to be drilled with respect to the drilled body such as a wall material or a ceiling material. The ejector 7e may be any one that functions so as to prevent the scattering of chips generated when the perforation blade 4 is rotated while projecting from the rear to the front and the through-hole is drilled. It functions to prevent scattering of chips generated when drilling through holes, and can easily remove the chips collected and stored in the scrap catcher 7h through the discharge port 7e. As long as it functions in the same way.
[0022]
In addition, if a tapered drop surface is formed at the opening end of the scrap catcher 7h, a chip produced when a through hole is drilled in the drilled body is formed around the opening end of the scrap catcher 7h. This is particularly preferable because it can be reliably moved toward the scrap catcher 7h without dropping into the scrap catcher 7h and dropped into the scrap catcher 7h.
[0023]
Further, if the discharger 7e is formed in the shape of a dust catcher for dust removal, all the scraps can be collected on the inner surface of the discharger, and the discharger 7e is prevented from falling off. 7e can be removed, and this discharger 7e can be removed while preventing spilling of chips, so that the chips can be disposed of reliably.
[0024]
The incision depth adjusting device 12 uses the “incision depth adjusting device in a rotary cutting tool” described in Japanese Utility Model Publication No. 59-43045 filed by the applicant of the present application, and is axially formed on the inner peripheral surface. Forming a slope in a spiral shape The lower part of the cylindrical cylinder has a leg that is rotatably fitted around the cylindrical part of the main body, and a slider that is slidable in the axial direction at the upper part is mounted from the cylindrical body. The structure is made to project and correspond to the spiral slope of the rotating cylinder.
[0025]
Next, the operation of the punching tool 20 based on the present embodiment will be described.
FIGS. 6 to 8 show the wall material 8 standing on the front surface so that the punching tool 20 according to this embodiment causes the entire surface of one side of the wiring box 9 arranged on the back of the wall to face the wall surface. It is explanatory drawing for demonstrating the drilling method of the through-hole 10, taking the case where the through-hole 10 is drilled as an example, and the said drilling tool 10 is abbreviate | omitted while omitting the upper part.
[0026]
As described above, the grip portion 1a of the rotary shaft 1 is gripped by a chucking portion in a handy type rotary drive tool (not shown) and is rotationally driven by the rotary drive tool. The rotary shaft 1 is inserted into a central through hole of a body provided concentrically with a through hole 10 formed in a wall material, and is detachably fixed. The rotary shaft 1 is spaced apart from the central through hole by a predetermined distance. Since the blade body bracket 3 to which the drilling blade 4 is attached is detachably fixed to the opposite positions on both sides, the rotation of the rotary shaft 1 causes them to rotate integrally. ing.
Accordingly, each of the perforating blades 4 can be rotated while drawing the same circular locus around the center of the center shaft 2, and the distance between the center shaft 2 and the blade body bracket 3 can be freely set. Through holes with different diameters can be drilled.
[0027]
First, as shown in FIG. 6, a detected part 9 d provided at an eccentric position of a wiring box arranged behind the wall and previously provided with a metal foil or a magnet is detected by a detector 13 that can be detected from the wall surface. When the tip 2c provided at the tip of the center shaft 2 is pressed against the detected position of the detected portion 9d, the tip 2c enters and pierces the surface of the wall material 8, and the center position of the through hole is set. Functions as a fixed positioning. That is, the center of the center shaft 2 is not displaced and the through-hole 10 can be provided with high accuracy.
[0028]
Next, as shown in FIG. 7, when the entire punching tool is pressed against the wall material 8, a coil spring (elastic body) 1d is built in the housing 1b and always urged toward the protruding direction of the center shaft 2. However, the center shaft 2 can be immersed in the housing 1b against the elastic force of the spring 1d while the tip 2c is allowed to enter the surface of the wall material 8, and the through hole The peripheral end of the cover body 7 can be brought into contact with a position corresponding to the outer peripheral edge.
At this time, each drilling blade 4 is fixed at a position that is appropriately adjusted so that it cannot be brought into contact with the drilled body, so that the wall material 8 does not hit the drilling blade 4. When the entire punch is further pressed against the wall member 8, the center shaft 2 is moved inward of the housing 1b against the elastic force of the spring 1d while the tip 2c is allowed to enter the surface of the drilled body. Further, it is possible to immerse all the punching blades 4 in contact with the wall material 8.
[0029]
Next, while the scrap catcher 7h is disposed below, when the entire punching tool 20 is continuously pushed toward the wall member 8 while the handy-type rotary drive tool is driven to rotate, the tip 2c is moved to the wall member 8. Only the perforation blade 4 can be advanced in a state where it has entered the surface of the surface, and as shown in FIG. 8, the through-hole 10 can be perforated in the wall material 8 by the perforation blade 4 and disposed on the back of the wall. Part of one side of the wiring box can face the wall surface.
[0030]
At this time, the through hole 10 is collected and stored in the scrap catcher 7h while preventing the shatter from being scattered when the entire cover body 7 drills the through hole 10 in the wall material 8. Can be drilled. In particular, unlike a conventional drilling tool, after the drilling operation is finished, as shown in FIG. 9, when the scrap catcher 7h is disposed below, or the scrap catcher 7h is provided on the entire periphery of the lower end (not shown) In the drilling tool, since the chips collected in the scrap catcher 7h can be held in the stored state as they are, the drilling tool 20 can be separated from the drilled body, the drilling tool 20 can be tilted, and then drilled. Even if the tool 20 is conveyed while being tilted, the scraps stored in the scrap catcher 7h will not fall out and can be taken out and discarded as appropriate through the discharge port 7a provided in the cover body 7.
[0031]
When the drilling is completed, the cutout waste material remains in the form in which the tip 2c provided on the center shaft 2 is pierced into the center hole. Therefore, the cutout waste material can be removed from the through-hole 10 while being pierced into the tip 2c and discarded.
[0032]
Therefore, the punching tool provided with the chip receiving cover body described as the first embodiment is different from the punching tool provided with the cover body without a discharge port in the case of drilling a through hole. Even if the body is inclined at various angles from the horizontal direction to the vertical direction, the chips can be held in a stored state without being scattered and scattered on one side. Since the cut-out waste material remains in the form where the sharp tip 2c is pierced into the center hole, the cut-out waste material can be removed from the through-hole 10 while being pierced into the tip 2c and discarded, and the punching tool 20 is conveyed while being tilted. Even so, the chips stored in the discharger 7e are not spilled off, and can be disposed of by appropriately discarding them.
[0033]
By the way, the punching tool 10 of the first embodiment described above describes one embodiment of the present invention, and “the punching tool provided with the chip receiving cover” of the present invention is a necessary process, a through hole. A cover body 7 whose end face abuts on the periphery of the cover body 7 and is housed inside the cover body 7 so as to protrude forward while rotating from the end face of the cover body 7, and the through hole 10 is drilled into the drilled body. The cover body 7 has an opening that can be freely opened and closed, and has a configuration in which a discharge body capable of collecting and storing chips is detachably provided as necessary. It points out all of the punch.
[0034]
When carrying out the present invention, various design changes can be made without departing from the gist of the present invention. For example, the discharge body 7e is provided via a locking portion 7g formed at the peripheral edge of the discharge port 7a. Instead of the configuration of detachably locking the lid member, the lid member formed in a shape covering the entire surface of the discharge port is pivotally supported or slid on the peripheral edge of the discharge port 7a so as to be freely opened and closed. (Not shown). The dimensions, materials, and the like of the cup-shaped leg 7b, the discharge port 7a, the discharge body 7e, or the lid member are all matters that can be appropriately changed in design.
[0035]
Finally, the above-described method of using the punching device of the present invention also has various modes. For example, as shown in FIG. 10, the through-hole is directly drilled in the wall material covering the front surface, so that it is arranged on the back of the wall. A cable or a wiring device connected to the cable can be pulled out on the wall surface to face the wall surface, and can be fixed to the wall material with a wiring device mounting frame interposed.
[0036]
【The invention's effect】
As described above in detail, according to the punching tool provided with the chip receiving cover according to claim 1, the discharge port for discharging the chips collected and stored inside the cover body, in particular, the scrap catcher. Since the discharge port is provided with a lid member that can be freely opened and closed, the chips produced when the through-hole is drilled in the drilled body through the discharge port can be easily and appropriately removed. The work site is not dirty.
[0037]
According to the punching tool provided with the chip receiving cover according to claim 2, a discharge port for discharging the chips collected and stored in the scrap catcher is formed in the cover body. Since the discharge body covering the discharge port is detachably provided, the punching tool provided with the chip receiving cover is in addition to the function and effect of the punching tool provided with the chip receiving cover according to claim 1. The chips collected and stored in the scrap catcher are collected on the inner surface of the discharge body, and the discharge body can be removed while preventing the chips from falling out, and the chips can be reliably removed as they are.
[0038]
That is, the drilling tool provided with the chip receiving cover according to the present invention has a simple structure, and can collect and store the chips inside the cover body at the work site, so that the chips are scattered or fallen down. The through hole can be drilled in the drilled body without being scattered all over the surface, and even if the drilling tool is separated from the drilled body, it can be held with the chips contained inside the cover body. In this case, the chip can be easily taken out and discarded, and the workability of drilling the through holes can be improved.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view showing a punching device according to an embodiment of the present invention.
2 is a side view with a part broken away showing the punching device of FIG. 1. FIG.
FIG. 3 is an overall perspective view showing an appearance of a cover body.
4 is a partially cutaway side view of the cover body of FIG. 3 partially broken away.
FIG. 5 is a bottom view of the cover body of FIG. 3;
FIG. 6 is a longitudinal sectional view showing a state in which a portion corresponding to the detected portion of the wiring box is detected by a detection tool from the front side of the drilled body.
FIG. 7 is a longitudinal cross-sectional view showing a state in which a through-hole having a drilling center at a position corresponding to the detected portion of the wiring box is drilled in the drilled body using a drilling tool. .
FIG. 8 is a longitudinal cross-sectional view showing a state in which a detected portion is broken after a through-hole is formed in the drilled body. In the case of a reusable type that is detachably hooked, it is removed from the wiring box and reused.
[Fig. 9] Fig. 9 is a main part explanatory view showing a state where the chips collected and stored in the scrap catcher are collected on the discharger side, and then the discharger is removed together with the chips and discarded. .
FIG. 10 is a perspective view showing another embodiment related to the use of the punching device of the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rotating shaft 1a ... Holding part 1b ... Housing 1c ... Attachment part 1d ... Spring (elastic body)
2 ... Center shaft 2a ... Attachment part 2b ... Stopper ring (detachment means)
2c ... Point 3 ... Blade bracket 3a ... Female screw 3b ... Through hole 4 ... Punching blade 5 ... Rotating body 6 ... Main body block 7 ... Cover body 7a ... Discharge port 7b ... Leg 7c ... Insertion hole 7d ... Cylindrical part 7e ... Discharge body 7f ... Rim edge 7g ... Locking portion 7h ... Scrap catcher 7i ... Drop surface 8 ... Wall material 9 ... Wiring box 9a ... Wiring box body 9b ... Positioning portion 9c ... Boss body 9d ... Detected portion 10 ... Through hole 11 ... Bolt 12 ... Incision depth adjusting device 13 ... Detector 14 ... Cut 15a ... Wiring fixture mounting frame 15b ... Wiring fixture 20 ... Punching tool

Claims (1)

A chip receiver that has an end surface that comes into contact with a peripheral edge of a through-hole to be drilled in a body to be drilled and prevents the chips generated when the through-hole is drilled and collects the chip. A piercing tool comprising a cover body and having a piercing blade which is accommodated inside the cover body and protrudes while rotating forward from an end surface of the cover body to pierce the through hole with respect to the pierced body. And
The chip receiving cover body includes a cup-shaped leg having the opened end face, and a discharge port for removing the chips collected inside the chip receiving cover body on the side wall surface of the leg. The discharge port is detachably covered by a discharge body, and the discharge body covers a portion of the side wall surface extending from the bottom surface and the side surface facing the opening of the leg in a state of covering the discharge port. characterized in that it is formed in the dust receiving portion shape of the dustpan in order to structure, chips received piercer provided with a cover member.

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