JP6178270B2 - Wall material drilling method, drilling device, wiring device installation device, drilling center position display device and detector - Google Patents

Description

  The present invention relates to a wall material perforation method, a perforation apparatus, a wiring apparatus installation apparatus, and a perforation center position display apparatus for allowing a wiring box installed on the back of a wall to face a wall surface.

  Conventionally, the wiring box concealed on the back of the wall so that the wiring box installed on the back of the wall faces the wall surface, and wiring devices such as outlets and switches can be attached to the wiring box from the front of the wall. Various apparatuses and methods for detecting a wall surface from a wall and forming a through hole in a wall material are used.

  For example, Patent Document 1 discloses a through-hole drilling method in which a through-hole (H) in which a plurality of circular perforations are overlapped is formed in a wall body (W) using a drilling tool (D) that can be drilled in a circular shape. doing. In the through-hole drilling method, a magnet (6) as a detected portion provided inside the opening of the wiring box (B2 to B8) is detected by the magnetic detector (A), thereby making a drilling center of one circular drilling. Drilling centers (C1 to C4) for drilling a plurality of circular drillings by defining (C1) and then deriving the remaining drilling centers (C2 to C4) using the gauge tool (G1, G2) And drilling a plurality of times using the drilling tool (D) to form a through hole (H) at a predetermined position of the wall (W). As a result, the wiring boxes (B2 to B8) installed on the back of the wall are exposed to the wall surface through the through holes (H) made of the overlapping holes, and the mounting portion for attaching the wiring device is exposed to the wall surface. be able to.

  In Patent Document 2, an electric drilling tool (30) that can be drilled in a vertically long ellipse shape is used to mount the wiring box (11) arranged on the back of the wall up and down on the wall material (Wa). A method is disclosed in which one through hole (Wb) having a vertically long elliptical shape in the direction is formed. A magnet (23) serving as a detected portion is formed in the approximate center of the opening (K) of the wiring box (11), and the position of the magnet (23) is detected from the wall surface with a magnet detector. The perforation center position of (Wb) is determined. Then, using the punching tool (30), an elliptical through hole (Wb) extending vertically in the long side direction of the wiring box (11) is drilled in the wall material (Wa) with the magnet (23) as the center.

Japanese Patent Laid-Open No. 10-98820 JP 2010-119219 A

  In the wiring box of Patent Document 1, the detected portion is provided in the wiring box so as to determine a drilling center position for a round drilling tool so that a plurality of circular holes are overlapped to form a through hole. It is arrange | positioned in the position eccentric from the center position of the opening part. This detected part is detected by a magnetic detector, and the center positions (drilling positions) of a plurality of circular holes are determined based on the detection positions. However, it is not possible to accurately and simply determine the drilling center position for the elliptical drilling type punch based on the position of the eccentric detection target portion. On the other hand, in the wiring box of Patent Document 2, the detected part is an opening of the wiring box so as to determine the drilling center position for the elliptical drilling type punch so that a through hole made of an elliptical hole is drilled. It is arrange | positioned in the approximate center position. This detected part is detected by a magnetic detector, and the center position (drilling position) of the elliptical hole is determined. However, it is not possible to accurately and easily determine the drilling center position for a circular drilling type punch based on the position of the detected part formed at the center. That is, the wiring box is classified into at least two types, that is, a type in which a superposed hole (a plurality of circular holes) is formed and a type in which an elliptical hole is formed, depending on the position where the detected part is formed.

  In order to accurately and easily determine the drilling position on the wall surface, it is necessary to use two types of drilling tools, a circular drilling type and an elliptical drilling type, depending on the type of wiring box installed. In particular, since the wiring box is installed in a concealed wall space, the operator does not know which type of wiring box is installed, and there is a possibility that the drilling position is wrong. In order to prevent at least inconsistency between the punching tool and the wiring box, the operator has to prepare two kinds of punching tools in advance and always carry them and go to the site. As a result, there is a problem that the burden (physical and economical) of the worker becomes large. Therefore, depending on the position of the detected part of the wiring box installed on the back of the wall, the wiring box can face the wall surface regardless of whether the drilling tool is a round drill or an elliptical drill. In addition, there is a need for a drilling method or the like that can form through holes in a wall material.

  The present invention has been made in order to solve the above-described problems, and the object thereof is to easily drill a through hole in a wall material regardless of whether an elliptical perforation type or a round perforation type is used. It is an object of the present invention to provide a wall material drilling method, a drilling device, a wiring device installation device, a drilling center position display device, and a detector that make it possible.

According to a first aspect of the present invention, there is provided a method for perforating a wall material, wherein a first transparent member is formed on a wall material so that a pair of attachment portions for attaching a wiring device formed on a wiring box installed on the back of the wall face the wall surface. A perforation method for forming one of a hole and a second through-hole, wherein the first through-hole is an elliptical hole, and the second through-hole is a polymerization hole in which a plurality of circular holes are connected. ,
A detection unit for detecting the detected part of the wiring box from the wall surface, a first display unit for displaying the elliptical center position of the first through hole on the wall surface, and a plurality of circular circles of the second through hole Detecting the position of the detected part of the wiring box from the wall surface using a detector comprising a plurality of second display parts for displaying the center position on the wall surface;
While the detected part is detected by the detector, the ellipse center position of the first through-hole is displayed on the wall surface on the first display unit, and the plurality of second through-holes on the wall surface on the plurality of second display units. Displaying the center position of the perfect circle;
When using the first drilling tool having a drilling blade capable of drilling in an elliptical shape, the drilling center position of the first drilling tool is matched with the elliptical center position displayed on the wall surface in the first display unit, and the first drilling tool is made. When the second perforation tool having a perforation blade that can be perforated in a circular shape is used, the center position of the second perforation tool and the second display portion are used. And a step of forming a plurality of circular holes in the wall material in order with the second perforating tool to perforate the second through-hole by matching with the center of the perfect circle displayed on the wall surface. .

  The wall material drilling method according to claim 2 is the hole drilling method according to claim 1, wherein an intermediate position of each of the pair of attachment portions coincides with an elliptical center position of the first through hole, and a pair of detected portions is provided. It is arrange | positioned in the intermediate position between these attaching parts.

According to a third aspect of the present invention, there is provided the perforating apparatus according to the third aspect, wherein the first through hole and the second through hole are formed in the wall member so that the pair of attachment portions for attaching the wiring device formed on the wiring box installed on the back of the wall face the wall surface. One of the two through holes, the first through hole is an elliptical hole, and the second through hole is a polymerization hole in which a plurality of circular holes are connected,
A detection unit for detecting the detected part of the wiring box from the wall surface, a first display unit for displaying the elliptical center position of the first through hole on the wall surface, and a plurality of circular circles of the second through hole the central position and a plurality of second display unit for displaying on the wall surface, the ellipse center position and a plurality of positive by the first display unit and a plurality of second display portion while detecting the object detecting unit by the detection unit A detector that displays all the circle center positions on the wall,
Any one of a first punch having a drilling blade capable of drilling in an elliptical shape and a second punch having a drilling blade capable of drilling in a circular shape;
With
When the first drilling tool is used, the first drilling tool is made to match the drilling center position of the first drilling tool with the elliptical center position displayed on the wall surface by the first display unit, and the first perforation tool is used as the first through-hole in the wall material. On the other hand, when the second drilling tool is used, the second drilling tool is made to coincide with the drilling center position of the second drilling tool and the center position of the perfect circle displayed on the wall surface by the second display unit. The second through hole can be drilled by sequentially forming a plurality of circular holes in the wall material.

  According to a fourth aspect of the present invention, in the perforating apparatus according to the third aspect, the position of the detected portion of the wiring box on the wall surface matches the elliptical center position of the first through hole. .

The wiring device installation device according to claim 5 is a wiring device installation device for installing a wiring device on a wall material,
A pair of mounting portions for mounting the wiring device and a detected portion detected from the wall surface, and the pair of mounting portions from the first through hole or the second through hole formed in the wall material is a wall A wiring box that is installed on the back of the wall so as to face the front, the first through hole is an elliptical hole, and the second through hole is a superposed hole in which a plurality of circular holes are connected;
A detection unit for detecting the detected part of the wiring box from the wall surface, a first display unit for displaying the elliptical center position of the first through hole on the wall surface, and a plurality of circular circles of the second through hole the central position and a plurality of second display unit for displaying on the wall surface, the ellipse center position and a plurality of positive by the first display unit and a plurality of second display portion while detecting the object detecting unit by the detection unit A detector that displays all the circle center positions on the wall,
A first drilling tool having a drilling blade capable of drilling in an elliptical shape with the center of the ellipse displayed on the wall surface of the first display unit as the center of drilling in order to drill the first through hole, and the second through hole A second drilling tool having a drilling blade capable of drilling in a circular shape with the center position of the perfect circle displayed on the wall surface of the second display unit as a center of drilling position. It is characterized by that.

According to a sixth aspect of the present invention, there is provided a perforation center position display device comprising: an elliptical hole on a wall member so that a pair of attachment portions for attaching a wiring device formed on a wiring box installed on the back of a wall face a wall surface. In order to form either the first through hole or the second through hole that is a superposed hole in which a plurality of circular holes are connected, the elliptical center position of the first through hole and the second through hole are formed. A drilling center position display device for displaying a plurality of circle center positions on a wall surface,
A wiring box having a detected part detected from the wall surface;
A detection unit for detecting the detected part of the wiring box from the wall surface, a first display unit for displaying the elliptical center position of the first through hole on the wall surface, and a plurality of circular circles of the second through hole A plurality of second display units for displaying the center position on the wall surface, and the first display unit and the plurality of second display units detect the center position of the ellipse and the plurality of normal positions in a state where the detected unit is detected by the detection unit. And a detector for displaying all of the circle center positions on the wall surface.

The detector according to claim 7 is formed by drilling one of a first through hole that is an elliptical hole and a second through hole that is a superposed hole in which a plurality of circular holes are connected to a wall material. The wiring box is detected from the wall surface so that the pair of mounting portions for mounting the wiring device formed on the wiring box installed behind the wall face the wall surface through the first and second through holes. Detector for
A detection unit for detecting the detected part of the wiring box from the wall surface;
A first display unit for displaying the elliptical center position of the first through-hole on the wall surface;
A plurality of second display parts for displaying a plurality of center positions of the second circular holes on the wall surface,
In the state where the detected part is detected by the detection part, all of the ellipse center position and the plurality of perfect circle center positions are displayed on the wall surface by the first display part and the plurality of second display parts.

  According to an embodiment of the present invention, in a state where the detection unit of the wiring box is detected by the detection unit of the detector, the elliptical center position (first drilling center position of the first through hole on the wall surface in the first display unit. ) And a plurality of second circular circular center positions (second perforation center positions) of the second through-holes on the wall surface by the plurality of second display units. It is possible to simultaneously display on the wall surface the respective drilling center positions at which both holes can be drilled. Thereby, according to the drilling tool used in any one of the first and second punching tools, one of the elliptical center position of the first through hole and the plurality of round circle center positions of the second through hole is selected, You can easily make a through hole in the wall material and make the wiring box properly face the wall surface. Therefore, according to the present invention, it is possible to easily drill a through hole in a wall material regardless of whether an elliptical drilling type or a circular drilling type is used.

  According to another embodiment of the present invention, in addition to the above effect, the middle position of the pair of attachment portions matches the ellipse center position of the first through-hole, thereby being vertically symmetrical with respect to the ellipse center position. The pair of attachment portions can be appropriately exposed at the positions. Furthermore, when the detected part of the wiring box and the ellipse center position match, the position where the detected part is detected by the detector part of the detector and the position where the ellipse center position is displayed on the first display part of the detector Are in the same position, and the operator can operate the detector intuitively, realizing a good feeling of use of the detector.

The perspective view from the front of (a) the front of the detector in one embodiment of the present invention, and (b) the back. The (a) front view, (b) side view, and (c) top view of the detector of FIG. (A) AA sectional drawing of the detector of FIG. 2, and (b) BB sectional drawing. The disassembled perspective view of the detector of FIG. The perspective view of the 1st punch (ellipse drilling type) in one embodiment of the present invention. The (a) front view and (b) top view of the 1st drilling tool of FIG. Sectional drawing at the time of the drilling of the 1st drilling tool of FIG. The perspective view of the 2nd perforation tool (circular perforation type) in one embodiment of the present invention. The (a) front view and (b) top view of the 2nd punch of FIG. Sectional drawing at the time of perforation of the 2nd perforation tool of FIG. The perspective view of the wiring box in one Embodiment of this invention. The (a) front view and (b) sectional drawing of the wiring box of FIG. In one embodiment of the present invention, (a) a schematic diagram of a first installation structure in which a first through hole is formed in a wall material and (b) a second installation structure in which a second through hole is formed in a wall material. . In one Embodiment (Example 1) of this invention, (a) plane schematic diagram and (b) side schematic diagram which show the process of detecting the to-be-detected part of a wiring box with a detector, and displaying a drilling position on a wall surface. In one Embodiment (Example 1) of this invention, the front schematic diagram of the wall material which displayed on the wall surface both the 1st drilling center position of an elliptical hole, and the 2nd drilling center position of a some circular hole. In another embodiment (Example 2) of this invention, (a) plane schematic diagram and (b) side schematic diagram which show the process which detects the to-be-detected part of a wiring box with a detector, and displays a drilling position on a wall surface. In another embodiment (Example 2) of this invention, the front schematic diagram of the wall material which displayed both the 1st drilling center position of the elliptical hole and the 2nd drilling center position of several circular holes on the wall surface. In another embodiment (Example 3) of this invention, (a) plane schematic diagram and (b) side schematic diagram which show the process of detecting the to-be-detected part of a wiring box with a detector, and displaying a drilling position on a wall surface. In another embodiment (Example 3) of this invention, the front schematic diagram of the wall material which displayed both the 1st drilling center position of the elliptical hole and the 2nd drilling center position of several circular holes in the wall surface. In another embodiment (Example 4) of this invention, the front schematic diagram of the wall material which displayed both the 1st drilling center position of the elliptical hole and the 2nd drilling center position of several circular holes on the wall surface. In another embodiment (Example 5) of this invention, the front schematic of the wall material which displayed both the 1st drilling center position of the elliptical hole and the 2nd drilling center position of several circular holes in the wall surface.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic diagram for explaining a suitable shape dimension, and a dimension ratio etc. do not necessarily correspond with an actual dimension ratio. That is, the present invention is not limited to the dimensional ratio in the drawings. In addition, the vertical and horizontal directions in the present invention are merely a concept indicating a relative position, and needless to say, these can be applied interchangeably.

Example 1
In one embodiment of the present invention, the wall material W is provided with either the first through-hole H1 or the second through-hole H2 so that the wiring box 170 installed in the concealed state on the wall material W faces the wall surface. Form. The first through hole H1 is an elliptical (or oval) hole. This “elliptical” shape is a concept including an oval shape close to a rectangle. On the other hand, the second through hole H2 is a polymerization hole in which a plurality of (two) circular holes are connected. In the perforating apparatus according to the embodiment of the present invention, one of the first through hole H1 and the second through hole H2 is provided in the wall material W so that the wiring box 170 installed in the wall material W faces the wall surface. An apparatus for selecting and forming. The punching device includes a detector 110 and any one of the first punching tool 130 and the second punching tool 150. Further, in the wiring device installation apparatus according to the embodiment, the first through hole H1 or the second through hole H2 is formed in the wall material W, and the wiring box 170 faces the wall surface so that the wiring device E is placed on the wall material. It is an apparatus for installing with respect to W. The wiring device installation apparatus includes a detector 110, one of the first punching tool 130 and the second punching tool 150, and a wiring box 170. Further, the perforation center position display device selects the first through-hole H1 or the second through-hole H2 in the wall material W and enables the first through-hole H1 and the second through-hole to be drilled. This is a device for displaying all the drilling center positions C1, C2 of the hole H2 on the wall surface. The perforation center position display device includes a detector 110 and a wiring box 170. Hereinafter, each member which comprises each apparatus is demonstrated in detail.

  With reference to FIGS. 1-4, the detector 110 of one Embodiment of this invention is demonstrated. FIGS. 1A and 1B are a perspective view from the front (front) of the detector 110 and a perspective view from the rear (back). 2A to 2C are a front view, a side view, and a plan view of the detector 110, respectively. 3A and 3B are an AA sectional view and a BB sectional view of the detector 110, respectively. FIG. 4 is an exploded perspective view of the detector 110.

  As shown in FIGS. 1 and 2, the detector 110 according to an embodiment is a hollow casing 111, a detection plate 112 arranged in the casing 111, and a magnet attached to the detection unit 112. The detection part 113 and the sliding contact part 114 provided in the front end of this housing | casing 111 and addressed to a wall surface are provided. The casing 111 is a hollow body made of a transparent resin (polystyrene in this embodiment), and is surrounded by left and right side walls 111a, upper and lower side walls 111b, a front wall 111c, and a rear wall 111d.

  In the side view of the housing 111, the left and right side walls 111a are formed by combining a rectangular portion on one (front wall 111c) side and a semicircular portion on the other (rear wall 111d) side. The left and right side walls 111a, the upper and lower side walls 111b, and the front wall 111c are formed as flat surfaces, and the rear wall 111d of the casing 111 is formed as a curved surface. A pair of cross-shaped sighting portions 118 are formed above and below the curved surface of the rear wall 111d of the casing 111. Further, at the front end edge of the casing 111, a ruled part 119a is formed so as to protrude from the approximate center of the left and right side walls 111a and the upper and lower side walls 111b. The ruled part 119a is a pair of protrusions, and by pressing the ruled part 119a against the wall surface, the wall surface can be recessed and marked. Further, as shown in FIG. 2, an uneven gripping portion 119 b is provided on the outer surface of the left and right side walls 111 a of the casing 111 from the other end to the approximate center. The grip portion 119b functions as a slip stopper when gripped by an operator. For convenience of explanation, FIG. 1 does not depict the grip portion 119b.

  As shown in FIG. 3A, a support 111e for supporting the detection plate 112 is provided in the casing 111 at the boundary between the rectangular portion and the semicircular portion in the side view of the casing 111. Yes. The support 111e is a thin plate that extends perpendicularly to the left and right side walls 111a and the upper and lower side walls 111b of the casing 111 (or extends in parallel to the front wall 111c), and is integrated with the left and right side walls 111a and the upper and lower side walls 111b. Is formed. A narrow slit 111f extending between the upper and lower side walls 111b is formed in the support portion 111e, and a support shaft 111g extends in the direction of the left and right side walls 111a at the approximate center of the slit 111f. The detection plate 112 is disposed in the slit 111f, and the detection plate 112 is pivotally supported by the support shaft 111g in the housing 111.

  The detection plate 112 is a disc made of an opaque resin (polystyrene in this embodiment) having a circular outer peripheral edge when viewed from the side. The detection plate 112 includes a short cylindrical portion 112a projecting forward in a short cylindrical shape from the front end side of the outer peripheral edge thereof, a shaft hole 112b through which the support shaft 111g is inserted, and an outer peripheral edge on the opposite side of the short cylindrical portion 112a. And a pair of cuts 112c cut out at. A magnet is incorporated in the short cylinder portion 112a as the detection portion 113. This magnet is a rare-earth magnet (for example, a neodymium magnet) having a high magnetic force, and can respond to an external magnet through the outer wall of the casing 111. Further, in the detection plate 112, the flesh portion in the vicinity of the short cylindrical portion 112a is cut out and the flesh portion on the opposite side is formed thick so that the center of gravity does not deviate from the center. That is, the shape of the detection plate 112 is designed to be pivotally supported in a balanced state so that the detection unit 113 functions like a compass.

  The detection plate 112 can rotate around the support shaft 111g in the circumferential direction (the arrow direction in FIG. 3A), and the left and right side walls 111a in the direction of the left and right side walls 111a around the slit 111f of the support portion 111e (FIG. 3B). ) In the direction of the arrow). That is, the detection unit 113 can rotate in two directions, the vertical direction and the horizontal direction, in response to the external magnetic force. When the detection unit 113 moves to the center position of the front wall 111c, the position of the notch 112c of the detection plate 112 matches the center position of the aiming unit 118 of the housing 111. That is, as will be described later, the position of the notch 112c of the detection plate 112 and the center position of the aiming part 118 of the casing 111 are matched, so that the position of the detected part 173 of the wiring box 170 is detected by the detection part 113. Can be detected.

  In addition, as shown in FIG. 3A, a first display portion 115 is formed to protrude forward at the center of the front wall 111c of the casing 111. The first display unit 115 is a quadrangular pyramid with a sharp tip, and is formed integrally with the front wall 111 c of the housing 111. Then, when the first display unit 115 is pressed against the wall material W, the wall material W can be recessed or scratched. In addition, two second display portions 116 are formed to project forward from above and below the first display portion 115. Each of the second display units 116 is located in the middle between the left and right side walls 111a, and is disposed at a position separated from the first display unit 115 by an equal distance d. That is, the first display unit 115 and the pair of second display units 116 are aligned on a straight line in the middle of the left and right side walls 111a. Similar to the first display unit 115, the second display unit 116 is a quadrangular pyramid with a sharp tip. Unlike the first display unit 115, the second display unit 116 is not integrally formed with the front wall 111c of the housing 111, but is a plate body 114a fixed to the front wall 111c of the housing 111 with an adhesive or the like. Are integrally formed. The plate body 114 a has the same shape and size as the front wall 111 c of the housing 111 when viewed from the front. A through hole is formed in the approximate center of the plate body 114a. The first display portion 115 passes through the through hole and protrudes from the outer surface of the plate body 114a. The plate body 114a is formed from a resin harder than the casing 111 (polycarbonate in the present embodiment). That is, the second display unit 116 is harder than the first display unit 115.

  Further, on the front wall 111 c side of the detector 110, a sliding contact portion 114 that is addressed to the wall material W when the wiring box 170 is searched is provided. The sliding contact portion 114 includes a plate body 114a fixed to the casing 111 and a buffer body 114b bonded to the outer surface of the plate body 114a. The buffer body 114b is a soft cushion sheet made of foamed polyethylene. As will be described later, when searching the detected portion 173 of the wiring box 170, the buffer body 114b of the sliding contact portion 114 is in direct sliding contact with the wall surface, and after detection, the detector 110 is pressed against the wall material W, The buffer body 114b is deformed and the first and second display portions 115 and 116 are pressed against the wall surface, and the wall surface is marked with a dent or scratch. And the 1st display part 115 displays the ellipse center position C1 for drilling the 1st through-hole H1. On the other hand, the second display unit 116 displays a plurality (two) of circular center positions C2 for forming the second through holes H2 (see FIG. 15).

  FIG. 4 is an exploded perspective view of the detector 110 according to the present embodiment. With reference to FIG. 4, the process of assembling the detector 110 will be described. As shown in FIG. 4, the housing 111 includes a pair of divided bodies 111 ′. In addition, the detection unit 113 which is a magnet is fixed in the short cylinder portion 112a of the detection plate 112 with an adhesive or the like. The detection plate 112, the support shaft 111g, the plate body 114a, and the buffer body 114b, which are separate bodies, are assembled to the casing 111. In FIG. 4, the support shaft 111 g is inserted into the shaft hole 112 b of the detection plate 112. The detection plate 112 is accommodated in the slit 111f, and the support shaft 111g penetrating the detection plate 112 is accommodated in a groove (concave) on the dividing edge of the support portion 111e. In this state, the joint end surface of the divided body 111 ′ of the housing 111 is combined and bonded in a fitting manner, so that the detection plate 112 is rotatably assembled in the housing 111. Then, the plate body 114a is fixed to the front wall 111c of the casing 111 so that the first display unit 115 penetrates the through hole at the center of the plate body 114a. Finally, the detector 110 is assembled by bonding the buffer body 114b to the outer surface of the plate body 114a.

  Next, with reference to FIG. 5 to FIG. 7, an elliptical perforation type first punch 130 according to an embodiment of the present invention will be described. FIG. 5 is a perspective view of the first punch 130. 6A and 6B are a front view and a plan view of the first punch 130, respectively. FIG. 7 is a cross-sectional view showing the first drilling tool 130 during drilling.

  As shown in FIG. 5, the first punching tool 130 includes a punching tool body 131, a drilling blade 132 having a predetermined drilling locus, a positioning shaft 133, an engagement shaft 134, a cutting depth adjusting unit 135, A rotation drive shaft 136, an annular contact surface 137, a lock portion 138, and a level 139 are provided. In this embodiment, the drilling blade 132 side of the first drilling tool 130 is defined as the front and the opposite side is defined as the rear.

  An annular contact surface 137 that can contact the wall material W during drilling is formed at the front end of the first punch 130. Inside the annular contact surface 137, a drilling blade 132 made of a plurality of saw blades having a vertically long oval (oval) drilling locus is formed. A positioning shaft 133 having a sharp tip is disposed at the center of the drilling locus of the drilling blade 132. That is, the distal end of the positioning shaft 133 is arranged at the first drilling center position for the first through hole H1. The positioning shaft 133 is urged by a spring so as to protrude forward of the annular contact surface 137 as shown in FIG. 6B, and when its tip is pressed backward (for example, the positioning shaft 133). When the tip of is pressed against the wall surface, it is displaced to retract backwards.

  The perforating blade 132 and the engagement shaft 134 are configured to be interlocked with the rotation drive shaft 136. When the rotary drive shaft 136 provided at the rear end of the punching tool 130 is pushed forward by a predetermined amount (in the drilling direction), the punching blade 132 and the engagement shaft 134 protrude by a predetermined amount. Further, the rotation of the rotary drive shaft 136 is transmitted to the drilling blade 132 and the engagement shaft 134, and the drilling blade 132 and the engagement shaft 134 rotate together according to the rotation input to the rotary drive shaft 136. Then, the cutting depth adjusting unit 135 can limit the protruding amount of the drilling blade 132 and the engaging shaft 134, and the cutting depth is adjusted by rotating the cutting depth adjusting unit 135 and matching the scale 135a. can do. Further, lock portions 138 for locking the punching tool main body 131 as a housing so as to be opened and closed are provided on both sides of the punching tool main body 131.

  As shown in FIGS. 5 and 6B, a liquid level 139 is installed on the upper surface of the punching tool main body 131 of the first punching tool 130. The level 139 is used to accurately drill an elliptical hole without tilting. The level 139 includes a turntable 139a that is rotatably fixed on the punching tool main body 131, a cylinder 139b that seals liquid (oil) mounted on the turntable 139a, and an inscription on the cylinder 139b. And a bubble 139d that moves on the scale 139c according to the inclination of the level 139. The posture of the first punching tool 130 is adjusted and maintained in the horizontal direction so that the bubble 139d is positioned inside the scale 139c.

  As shown in FIG. 6B, the cylindrical body 139b can rotate on the turntable 139a, and is rotated by 1/8 rotation (45) due to the engagement relationship (not shown) of the punching tool main body 131 and the turntable 139a. It is locked every time. That is, the cylindrical body 139b can take three arrangements on the upper surface of the punching tool main body 131 along the left-right direction, the front-rear direction, and the oblique direction. For example, when the cylinder 139b is arranged along the left-right direction, the short axis of the drilling locus of the drilling blade 132 is maintained in the horizontal direction when the bubble 139d is positioned inside the scale 139c. Further, when the cylindrical body 139b is arranged along the front-rear direction, if the bubble 139d is positioned inside the scale 139c, the front-rear axis (that is, the positioning shaft 133, the rotation drive shaft 136, etc.) of the first punching tool 130, etc. ) Is maintained horizontally. Further, when the cylindrical body 139b is arranged along an oblique direction (45 degrees from the front-rear axis), if the bubble 139d is positioned inside the scale 138c, the short axis of the drilling blade 132 and the first drilling tool 130 Both front and rear axes are simultaneously maintained in the horizontal direction. These three levels of the level 139 can be selectively used according to the usage status of the first punching tool 130.

  FIG. 7 is a cross-sectional view of the first drilling tool 130 of the present embodiment in a state where the wall material W is drilled. When drilling with the first drilling tool 130, first, the positioning shaft 133 is aligned with the drilling center position of the elliptical shape (first through hole H1) to be formed, and the level of the first drilling tool 130 is set using the level 139. Maintain a horizontal posture. Then, when the annular contact surface 137 of the first punching tool 130 is pressed against the wall surface in the horizontal posture, the positioning shaft 133 is retracted rearward. In this state, when the electric tool U (for example, electric drill or electric screwdriver) attached to the rotary drive shaft 136 is driven and the first drilling tool 130 (or the electric tool U) is pushed forward, as shown in FIG. Then, the drilling blade 132 and the engagement shaft 134 are moved forward into the wall material W while rotating. Since the engagement shaft 134 bites into and engages with the cutting piece of the wall material W, the cutting piece is prevented from rotating and peeling off with the rotation of the drilling blade 132, and clean drilling without burrs and the like can be stably performed. Can be formed. When the perforating blade 132 is advanced until it passes through the back surface of the wall material W, an elliptical perforation corresponding to the perforation locus of the perforating blade 132 is formed in the wall material W. Since the punching mechanism described here is partially in common with the punching tool disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2010-221303), a part of the structural description thereof is omitted. In addition, although the electric tool U is mentioned as a means for driving the rotation drive shaft 136, manual rotation drive means may be used. Alternatively, the rotation drive shaft and the rotation drive means may be omitted as long as the wall material can be drilled (punched) without rotating the drilling blade.

  Next, with reference to FIG. 8 to FIG. 10, the second circular punching device 150 of a circular drilling type according to an embodiment of the present invention will be described. FIG. 8 is a perspective view of the second punch 150. 9A and 9B are a front view and a plan view of the second punch 150, respectively. FIG. 10 is a cross-sectional view showing the second punch 150 at the time of drilling.

  As shown in FIG. 8, the second drilling tool 150 includes a drilling tool main body 151, a drilling blade 152 having a circular drilling locus, a positioning shaft 153 positioned at the drilling center, a cutting depth adjusting unit 155, A rotation drive shaft 156 and an annular contact surface 157 are provided.

  At the front end of the second punch 150, a circular annular contact surface 157 that can contact the wall material W during drilling is formed. A pair of drilling blades 152 that rotate to draw a circular drilling locus are formed inside the annular contact surface 157. As shown in FIG. 9A, the perforation blade 152 is composed of two single blades located at an equal distance (r / 2) from the center (positioning shaft 153). It is configured to draw two perfect circular drilling trajectories. The second drilling tool 150 is provided with a drilling diameter adjusting mechanism 158 capable of adjusting the distance r (drilling diameter) between the drilling blades 152, and the drilling diameter adjusting mechanism 158 is operated according to the scale (that is, By turning the knob), the respective drilling blades 152 move closer to or away from each other, and the drilling diameter r can be set to a desired value.

  A positioning shaft 153 is disposed at the center of the drilling locus of the drilling blade 152. That is, the positioning shaft 153 is disposed at each center position C2 of the second circular hole H2. The positioning shaft 153 has a drill-like tip and is configured to be able to enter the wall material W by rotating together with the drilling blade 152. Further, when the rotary drive shaft 156 provided at the rear end of the second punch 150 is pushed forward by a predetermined amount (perforation direction), the punch blade 152 and the positioning shaft 153 protrude by a predetermined amount. Further, the rotation of the rotary drive shaft 156 is transmitted to the drilling blade 152 and the positioning shaft 153, and the drilling blade 152 and the positioning shaft 153 rotate together according to the rotation input to the rotary drive shaft 156. And the cutting depth adjustment part 155 can restrict | limit the protrusion amount of the piercing blade 152 and the positioning shaft 153, and adjusts the cutting depth by rotating the said cutting depth adjustment part 155 and adjusting the scale. Can do.

  FIG. 10 is a cross-sectional view of the second punch 150 of the present embodiment in a state where the wall material W is punched. When drilling with the second drilling tool 150, first, the positioning shaft 153 is aligned with the drilling center position of the regular circle (second through hole H2) to be formed. In addition, since the drilling locus of the second punch 150 is a perfect circle, it is not necessary to adjust the inclination with a level. Then, when the annular contact surface 137 of the first punch 150 is pressed against the wall surface, the positioning shaft 153 retracts backward together with the rotation drive shaft 156. In this state, when the electric tool U (for example, electric drill or electric screwdriver) attached to the rotary drive shaft 156 is driven and the second drilling tool 150 (or the electric tool U) is pushed forward, as shown in FIG. Then, the drilling blade 152 and the positioning shaft 153 move forward into the wall material W while rotating. When the tip of the perforation blade 152 is advanced until it comes out to the back surface of the wall material W, a circular perforation corresponding to the perforation locus of the perforation blade 152 is formed in the wall material W. In addition, although the electric tool U is mentioned as a means for driving the rotation drive shaft 136, manual rotation drive means may be used. Alternatively, the rotation drive shaft and the rotation drive means may be omitted as long as the wall material can be drilled (punched) without rotating the drilling blade.

  Subsequently, a wiring box 170 according to an embodiment of the present invention will be described with reference to FIGS. 11 and 12. FIG. 11 is a perspective view of the wiring box 170. 12A to 12C are a front view, a side view, and a plan view of the wiring box 170. FIG.

  As shown in FIGS. 11 and 12, the wiring box 170 is a rectangular housing having a bottom wall and a peripheral wall, and has an opening 171 on the front surface thereof. The wiring box 170 has a pair of mounting portions 172 provided above and below the periphery of the opening 171, a detected portion 173 extending from the bottom wall to the opening 171, and a construction material on the back of the wall. A fixed portion 174 that is indirectly fixed (on the left side wall of the front view). The pair of mounting portions 172 are configured as screw holes for mounting wiring devices such as outlets and switches. The detected portion 173 is disposed at the center position of the opening 171 in a front view. The detected portion 173 protrudes from the bottom wall of the wiring box 170 toward the front opening 171 side, and has a magnet 173a held at the tip of the protruding portion. The magnet 173 a is a rare earth magnet (for example, a neodymium magnet) having a high magnetic force, and can act on the wall surface via the wall material W. As described later, the magnetic field leaking from the magnet 173a can be detected from the wall surface by the detector 110. And the position of the to-be-detected part 173 corresponds with the ellipse center position C1 of the 1st through-hole H1. In general, the wiring box 170 is designed for an elliptical drilling type punch to drill an elliptical hole in the wall material W.

  13 (a) and 13 (b) show a first installation structure 11 and a second installation constructed such that a wiring device (not shown) can be arranged via a wall material W in a wiring box 170 installed on the back of the wall. Structure 12 is shown. As shown in FIG. 13A, in the first installation structure 11, a vertically long first elliptic hole H1 is formed in the wall material W, and the wiring box 170 is inserted through the first hole H1. The opening 171 and the pair of mounting portions 172 face the wall surface. On the other hand, as shown in FIG. 13 (b), in the second installation structure 12, a second through hole H2 in which two circular holes are continuous and polymerized is formed in the wall material W, and the second through hole H2 is formed. Accordingly, the opening 171 and the pair of attachment portions 172 of the wiring box 170 face the wall surface. That is, both the 1st installation structure 11 and the 2nd installation structure 12 are comprised so that attachment of a wiring appliance is possible. In this way, one of the first installation structure 11 and the second installation structure 12 is selected so that the wiring box 170 faces the wall surface, and the wiring device is disposed on the wall material W.

  Next, the first through hole H1 or the second through hole H2 is selectively formed in the wall material W by using the detector 110, the first punching tool 130 or the second punching tool 150, and the wiring box 170 described above. A method (or a drilling method) for forming the first installation structure 11 or the second installation structure 12 in order to form the wiring apparatus and attach the wiring device to the wall material W will be described.

  First, although not shown, the wiring box 170 is fixed indirectly or directly to the construction material (intercolumn) in the wall space. Then, the wall material W is erected with respect to the building material so that the opening 171 of the wiring box 170 is brought close to the back surface of the wall material W. Thereby, the wiring box 170 is installed at a predetermined position of the wall material W behind the wall.

  Next, as shown in FIGS. 14A and 14B, the sliding contact portion 114 of the detector 110 is directed from the wall surface to the wall surface of the wall material W, and the position of the detected portion 173 of the wiring box 170 on the back of the wall. Explore. More specifically, when the sliding contact portion 114 of the detector 110 is brought into contact with the wall surface of the wall material W via the buffer body 114b, the detection portion 113, which is a magnet, is detected by the detected portion 173 of the wiring box 170 behind the wall. Attracted by (magnet 173a). Due to the attractive force between the magnets, as indicated by the phantom lines in FIGS. 14A and 14B, the detection plate 112 rotates about the support shaft 111g and tilts about the slit 111f as an axis, thereby detecting the detector 113. Indicates the direction of the detected part 173 like a compass. The detected unit 173 is searched by sliding the detector 110 along the wall surface in the direction indicated by the detecting unit 113. 14A and 14B, when the detection unit 113 detects the detected unit 173, the detection unit 113 is positioned at the center of the housing front wall 111c, and the detection plate 112 The notch 112c is located at the center of the aiming part 118.

  In this manner, the detector 110 is maintained in a horizontal posture (the upper and lower side walls 111b are kept horizontal) in a state where the detected unit 173 is detected by the detection unit 113. At this time, the first display unit 115 is positioned directly in front of the detected portion 173 of the wiring box 170, and the two second display units 116 are separated from the first display unit 115 by a predetermined distance on both sides in the vertical direction of the wall material W. At a position separated by d. Then, the buffer body 114b of the sliding contact portion 114 is crushed by pressing the detector 110 against the wall material W while maintaining the detected posture, and the cone-shaped first display portion 115 and second display portion. The part 116 bites into the wall material W. At this time, since it is difficult to apply the force uniformly to the surface, the load on the second display unit 116 on the side is larger than the first display unit 115 in the middle. In the detector 110, since the second display unit 116 is harder than the first display unit 115, the strength of the second display unit 116, which is more burdensome, is strengthened, and the durability is effectively improved. It is a thing.

  As a result, as shown in FIG. 15, three perforation center positions (dents) C1, C2, and C2 are marked on the wall surface of the wall material W. The first drilling center position C1 is displayed by the first display unit 115 of the detector 110 and matches the elliptical center position of the first through hole H1. On the other hand, the second drilling center position C2 is displayed by the second display unit 116 of the detector 110, and coincides with the center positions of the two circular holes of the second through hole H2. The first perforation center position (ellipse center position) C1 and each second perforation center position (perfect circle center position) C2 are separated by a distance d. The distance d corresponds to the distance d between the first display unit 115 and the second display unit 116. In general, the dimensions of the piping box 170 are determined by standards. Therefore, the relative position (that is, distance d) between the first display unit 115 and the second display unit 116 can be determined in advance based on the standard dimension of the piping box 170.

  As shown in FIG. 15, by the detector 110, the wall surface of the wall material W is provided with the elliptical center position C1 for forming the first through hole H1 as an elliptical hole and the second circularly overlapping hole as the second circularly overlapping hole. A plurality of circular center positions C2 for forming the through holes H2 are displayed. At this time, the first through hole H1 and the second through hole H2 can be selected and drilled based on either the first drilling center position C1 or the second drilling center position C2.

  Subsequently, the operator prepares one of the first punching tool 130 that can be drilled in an elliptical shape and the second punching tool 150 that can be drilled in a circular shape. At this time, when the operator holds only one of the punching tools, the drilling tool to be held may be prepared. Or when an operator has both the punching tools, according to the kind etc. of wall material W, it selects and prepares which punching tool to use. For example, when the wall material W is a relatively hard wooden plywood (so-called control panel), when the first perforated drilling tool 130 is selected, the wall material W is perforated with the saw-tooth perforated blade 132. Is known to be difficult and time consuming. In such a case, it is preferable to select the circular perforated single-blade second perforating tool 150. Alternatively, in the case where the wall material W is a relatively soft gypsum board, if the second perforation tool 150 having a circular perforation shape is selected, at least two perfect circles must be perforated in the wall material W. Compared to the tool 130, the drilling operation takes more time. In such a case, it is preferable to use the first drilling tool 130 of elliptical drilling type. That is, the operator can use the drilling tool arbitrarily according to the situation.

  When the operator uses the first punching tool 130 (or has only the first punching tool 130), the positioning axis 133 indicating the center of the drilling locus of the first punching tool 130 and the elliptical center position C1 are matched. Then, the first perforation tool 130 perforates the elliptical first through hole H1 in the wall material W. As a result, the first installation structure 11 shown in FIG. 13A is constructed. On the other hand, when the operator uses the second drilling tool 150 (or has only the second drilling tool 150), the positioning shaft 153 indicating the center of the drilling locus of the second drilling tool 150 and the circular center position C2 are matched. Then, a plurality of (two) circular holes are sequentially formed in the wall material W by the second punching tool 150 to punch the second through hole H2. Thereby, the 2nd installation structure 12 shown in Drawing 13 (b) is built. In this way, the operator selects and drills either the first through hole H1 or the second through hole H2 arbitrarily using the first and second punching tools 130 and 150, and the wiring box The opening 171 of 170 and a pair of attachment part 172 can face a wall surface. Then, by removing the magnet 173a (or the entire detected portion 173) of the detected portion 173, the first and the first in order to arrange the wiring device in the wiring box 170 (attachment portion 172) via the wall material W. 2 Installation structures 11 and 12 can be selectively constructed. Finally, in the constructed first and second installation structures 11, 12, the wiring device (not shown) is fixed to the pair of mounting portions 172 with screws, so that the wiring device is attached to the wall material W. Can be installed. Note that the method described here is merely an example, and those skilled in the art can change the order of the steps or omit unnecessary steps depending on the situation.

  Hereinafter, the effect of the wall material drilling method, the drilling device, the wiring device installation device, the drilling center position display device, and the detector 110 according to an embodiment of the present invention will be described.

  In the drilling method (piercing device, wiring device installation device, drilling center position display device and detector 110) according to an embodiment of the present invention, the detected portion 173 of the wiring box 170 is detected by the detector 113 of the detector 110. Thus, the first display unit 115 of the detector 110 displays the elliptical center position C1 of the elliptical hole constituting the first through hole H1 on the wall surface of the wall material W, and a plurality (two) of the second display units 116. By displaying the center positions C2 of the plurality of (two) circular holes constituting the second through hole H2 on the wall surface of the wall material W, the first and second through holes H1, The drilling center positions C1 and C2 that enable drilling of both H2 can be displayed on the wall surface at the same time. Thereby, according to the piercing tool arbitrarily used among the first piercing tool 130 and the second piercing tool 150, a plurality of positive center positions C1 of the first through hole H1 and the second through hole H2 are set. One of the circle center positions C2 can be selected, a through hole can be easily formed in the wall material W, and the wiring box 170 can be appropriately faced to the wall surface. For example, even when the operator owns only one of the circular perforation type first perforation tool 130 and the elliptical perforation type second perforation tool 150, the center positions of the first and second through holes H1 and H2 are perforated. Since both C1 and C2 are simultaneously displayed on the wall surface, the drilling center position can be appropriately selected in accordance with the drilling tool owned and the drilling operation can be easily performed. And the drilling method of this embodiment (a punching device, a wiring tool installation device, a drilling center position display device, and a detector 110) greatly reduces the burden on the operator such as preparing and carrying two types of punching tools. In addition, the operator is provided with a degree of freedom to select a drilling tool or a drilling shape according to the situation such as the type of wall material.

  Furthermore, in one embodiment of the present invention, the detected portion 173 of the wiring box 170 and the ellipse center position C1 match, so that the detected portion 173 of the detector 110 detects the detected portion 173, and The position at which the ellipse center position C1 is displayed on the first display unit 115 of the detector 110 is the same position, and the operator can intuitively operate the detector 110, thereby realizing a good feeling of use of the detector 110. be able to.

(Example 2)
Although the wiring box 170 of Example 1 is disposed at the center of the opening 171, the present invention can be applied to other types of wiring boxes and is not limited to the above embodiment. In the second embodiment, as illustrated in FIG. 16A, the wiring box 270 includes a detected portion 273 at a position eccentric from the center of the opening 271. That is, the wiring box 270 is generally designed for a circular perforation tool in order to perforate a plurality of circular holes in the wall material W. The detector 210 according to the second embodiment corresponds to the wiring box 210 in which the detected portion 273 is eccentric from the center of the opening 271. That is, the detector 210 has the same basic configuration as the detector 110, but the arrangement pattern of the first display unit 215 and the second display unit 216 is different from that of the detector 110.

  As shown in FIGS. 16A and 16B, one second display portion 216 is provided at the center position of the front wall 211 c of the casing 211 of the detector 210. In addition, a first display unit 215 is provided at a position spaced apart from the second display unit 216 by a distance d. Furthermore, a second display unit 216 is provided at a position spaced apart from the first display unit 215 by a distance d. The first display unit 215 and the pair of second display units 216 are aligned on a straight line in the middle of the left and right side walls 211a. That is, as shown in FIG. 16B, the second display unit 216 is arranged in front of the detected unit 273 in a state where the detected unit 273 of the wiring box 270 is detected by the detecting unit 212a of the detector 210. The upper first display unit 215 and the second display unit 216 are arranged further upward.

  Then, as shown in FIGS. 16A and 16B, the first display unit 215 and the first display unit 215 are pressed by pressing the detector 210 against the wall surface with the detector 210 detecting the position of the detected unit 273 of the wiring box 270. The pair of second display portions 216 can be recessed into the wall surface. As a result, as shown in FIG. 17, the first display portion 215 displays the elliptical center position C1 of the first through hole H1, and the pair of second display portions 216 includes a plurality of second through holes H2. A perfect circle center position C2 is displayed. The lower perfect circle center position C <b> 2 corresponds to the position of the detected part 273. Then, based on these markings, one of the first and second drilling tools is selected to drill the wall material W, and the opening 271 and the pair of wiring boxes 270 are formed on the wall surface of the wall material W. The mounting portion 272 can be exposed.

(Example 3)
The present invention can also be applied to a wiring box having a plurality of appliance installation areas in which a plurality of wiring appliances can be attached. For example, as shown in FIGS. 18 (a) and 18 (b), the wiring box 370 has three appliance installation areas connected sideways. In order to make the three appliance installation areas (opening 371 and three pairs of attachment portions 372) of the wiring box 370 installed on the back of the wall face the wall surface, a plurality of overlapped through holes can be drilled on the wall surface W. is necessary. That is, in the present embodiment, three first through holes H1 (total of three elliptical holes) overlap in the horizontal direction, or three second through holes H2 (total of six circular holes) in the horizontal direction. By polymerizing, one large through hole is formed. One detected portion 373 is arranged at the center of the instrument installation area in the middle of the wiring box 370.

  The detector 310 has the same basic configuration as the detector 110 of the first embodiment, but the arrangement pattern of the first display unit 315 and the second display unit 316 corresponds to the wiring box 370. . That is, in the detector 310, the plate body 314a of the sliding portion 314 extends sideways in a longitudinal shape. The plate body 314a is provided with three first display portions 315 aligned at equal intervals in the longitudinal direction and six second display portions 316 aligned above and below each first display portion 315. The first display portions 315 are arranged apart from each other so as to match the center position of each appliance installation area of the wiring box 370.

  As shown in FIGS. 18A and 18B, the first display unit 315 in the middle matches the position of the detected unit 373 with the detector 310 detecting the position of the detected unit 373 of the wiring box 370. In this state, the three first display units 315 and the six second display units 316 can be recessed into the wall surface by pressing the detector 310 against the wall surface while maintaining the detector 310 in a horizontal posture. . As a result, as shown in FIG. 19, a plurality (three) of first display portions 315 display a plurality of ellipse center positions C1 of the first through holes H1, and a plurality (six) of second displays. The portion 316 displays a plurality of center positions C2 of the second circular holes H2. The center position C1 of the ellipse in the middle corresponds to the position of the detected part 373. Then, based on these markings, a wall of the wall material W is formed by sequentially drilling a plurality of elliptical holes or a plurality of circular holes in the wall material W using one of the first and second drilling tools. The opening 371 and the three pairs of attachment portions 372 of the wiring box 370 can be exposed to the table.

  In the detectors 110, 210, and 310 of the first to third embodiments, the structures of the casings 111, 211, and 311 are common. Therefore, the forms can be converted to each other by exchanging the plate bodies 114a, 214a, and 314a attached to the front surfaces of the housing front walls 111c, 211c, and 311c. That is, a plurality of plate bodies in which the first and second display sections are arranged in a predetermined pattern that matches various wiring box shapes are prepared in advance, and the plate body (first plate) attached to the detector housing according to the shape of the wiring box The patterns of the first and second display portions) can be appropriately selected and changed. Thereby, it becomes possible to display a desired perforation center position on the first display unit and the second display unit regardless of the shape of the wiring box.

(Examples 4 and 5)
By the way, in the wiring box 270 in which the detected portion 273a is eccentric as in the second embodiment, it may not be known whether the detected portion 273a is arranged up or down until the wall material W is drilled. Because the fixed portion 274 of the wiring box 270 is formed on one of the left and right side walls (left side in front view), the wiring box 270 is turned upside down depending on the (left and right) relative position of the construction material with respect to the wiring box 270. It is because it is installed. In such a case, if there is no prior information, even if the detected portion 273 is detected by the detector 210 and three points are marked on the wall surface by the first display portion and the second display portion, one second perforation is required. If the center position C2 is accurately displayed, the marking may be shifted above or below the wiring box 270, and the remaining first drilling center position C1 and second drilling center position C2 may not be displayed accurately.

Example 4
In order to deal with such a problem (or problem), in the fourth embodiment, the detected portion 473 (magnet 473a) of the wiring box 470 is configured to be detachable or attachable afterwards, and the wiring box 470 is provided. The to-be-detected part 473 (magnet 473a) can be attached to two attachment parts 473b that are symmetrically offset vertically from the center of the opening part 471. FIGS. 20A and 20B are schematic front views of the wall material W displaying both the first perforation center position C1 of the elliptical hole and the second perforation center positions C2 of the plurality of circular holes on the wall surface. FIG. 20A shows a state in which the fixing portion 473 is positioned on the left side of the wiring box 470 and the wiring box 470 is fixed to the left construction material (not shown), while FIG. The fixing part 473 is located on the right side of the box 470, and the wiring box 470 is fixed to the right construction material (not shown). That is, the wiring boxes 470 shown in FIGS. 20 (a) and 20 (b) are installed upside down.

  As shown in FIGS. 20A and 20B, the pair of attachment portions (eccentric positions) 473b of the detected portion 473 (magnet 473a) are positioned in the middle of the left and right side walls and symmetrical with respect to the center of the opening 471. Is located. Further, the position where the detected portion 473 is attached in the state where the wiring box 470 is installed so that the position of the detected portion 473 does not change depending on the position of the construction material (that is, even if the wiring box 470 is reversed). It was predetermined in any one of the attaching parts 473b. As a result, it is determined that the detected position of the detected portion 473 is always at one of the eccentric positions of the wiring box 470 (downward in the fourth embodiment). Then, based on the position information (or rule) of the detected part 473 defined at any one of the upper and lower positions, the first and second drilling center positions C1 and C2 are accurately marked on the wall surface by the detector on the wiring box. can do. That is, in the fourth embodiment, as shown in FIGS. 20A and 20B, it is specified (ruled) that the detected portion is attached to the lower eccentric position with the wiring box 470 installed. For example, it can be seen that the first drilling center position C1 and the second drilling position C2 are disposed above the second drilling position C2 directly in front of the detected portion. For example, using the detector 210 of the second embodiment, The first drilling center position C1 and the second drilling position C2 can be accurately displayed.

  In the fourth embodiment, the magnet 473a can be freely attached to and detached from the pair of hollow cylindrical attachment portions 473b, and the magnet 473a is attached to the attachment portion 473b based on the defined eccentric position (that is, the detected portion). 473 is attached to the eccentric position of the wiring box 470). However, the mechanism for attaching the detected part to the wiring box is not limited to this, and examples thereof include the following mechanisms. A cylinder including a magnet as a detected part is detachably fitted into a recess in the bottom wall of the wiring box. The cylinder is subsequently bonded to the bottom wall of the wiring box with an adhesive. The cylinder is magnetically attached to the bottom wall of the wiring box.

That is, the characteristics of the drilling method of Example 4 are as follows.
Either a first through hole or a second through hole is formed in the wall material so that a pair of attachment portions for attaching the wiring device formed on the wiring box installed on the back of the wall face the wall surface. The first through hole is an elliptical hole, the second through hole is a superposed hole in which a plurality of circular holes are connected, and the wiring box is connected to the wall surface by a detector. A detected portion to be detected, and the detected portion can be detachably or later disposed at at least two eccentric positions that are symmetrically eccentric from the center position of the opening of the wiring box,
When installing the wiring box on the back of the wall, a step of attaching the detected portion from at least two eccentric positions to one, and attaching the detected portion to the specified eccentric position;
A detection unit for detecting the detected portion of the wiring box from a wall surface, a first display unit for displaying an elliptical center position of the first through-hole on a wall surface, and a second through-hole Using a detector comprising a plurality of second display units for displaying a plurality of center positions of a perfect circle on the wall surface, the position of the detected part of the wiring box is determined from the wall surface based on the specified eccentric position. The process of detecting,
While the detected portion is detected by the detector, the ellipse center position of the first through hole is displayed on the wall surface on the first display portion, and the second display portion displays the second ellipse center position on the wall surface. Displaying a plurality of circular center positions of the through holes;
When using the first drilling tool having a drilling blade capable of drilling in an elliptical shape, the drilling center position of the first drilling tool and the elliptical center position displayed on the wall surface of the first display unit are matched, When the second perforating tool having a perforating blade capable of perforating the wall material with the first perforating tool and having a perfect perforated shape is used, the drilling center position of the second perforating tool And the circular center position displayed on the wall surface by the second display unit are matched with each other, and a plurality of circular holes are sequentially formed in the wall material by the second punching tool to punch the second through hole. And a step of drilling a wall material.

(Example 5)
Further, the configuration of the fifth embodiment can solve the above-described problem of the second embodiment as in the fourth embodiment. FIGS. 21A and 21B are schematic front views of the wall material W displaying both the first perforation center position C1 of the elliptical hole and the second perforation center positions C2 of the plurality of circular holes on the wall surface. As in FIGS. 20A and 20B, the wiring boxes 570 in FIGS. 21A and 21B are installed in an inverted state.

  As shown in FIGS. 21A and 21B, the wiring box 570 of the fifth embodiment includes a pair of detected portions 573 (magnets 573a) at positions that are symmetrically decentered vertically from the center of the opening 571. The pair of to-be-detected parts 573 are located in the middle of the left and right side walls and are symmetrically positioned vertically with respect to the center of the opening 571. That is, even if the wiring box 570 is turned upside down according to the position of the building material as shown in FIGS. 21A and 21B, the position of the pair of detected parts 573 detected from the wall surface does not change. And the position where the wiring box 570 is arrange | positioned on the wall back can be correctly grasped | ascertained by detecting and confirming the position of the two to-be-detected parts 573 with a detector. Based on this position information, for example, by using the detector 210 of the second embodiment and pressing the first and second display portions 215 and 216 against the wall surface in a state where the lower fixed portion 574 is detected, FIG. As shown in (a) and (b), the drilling center positions C1 and C2 can be displayed accurately. Therefore, in the form of Example 5, the operator sets the first and second drilling center positions by determining the positions for marking three points on the wall surface in the first display unit and the second display unit of the detector so as not to make a mistake. It can be accurately displayed on the wall.

That is, the features of the drilling center position display device of Example 5 are as follows.
A first through hole, which is an elliptical hole, and a plurality of circles are formed on the wall material so that a pair of attachment portions for attaching the wiring device formed on the wiring box installed on the back of the wall face the wall surface. In order to form either one of the second through holes, which are superposed holes that are continuous holes, an elliptical center position of the first through hole and a plurality of circular center positions of the second through hole are displayed on the wall surface. A drilling center position display device,
A pair of to-be-detected parts detected from the wall surface, and the pair of to-be-detected parts are respectively arranged at positions that are symmetrically decentered vertically from the center position of the opening;
A detection unit for detecting the detected portion of the wiring box from a wall surface, a first display unit for displaying an elliptical center position of the first through-hole on a wall surface, and a second through-hole A plurality of second display units for displaying a plurality of center positions of the perfect circle on the wall surface, and the first display unit and the plurality of second display units in the state in which the detected unit is detected by the detection unit. A drilling center position display device, comprising: a detector that displays an ellipse center position and all of the plurality of perfect circle center positions on a wall surface.

(Modification)
The present invention is not limited to the embodiments 1 to 5 described above, and assumes various modifications and alterations. For example, the form of the first and second punches is not limited to the above form. The first and second punching tools only need to have a minimum punching function, and each function can be omitted or other functions can be added. Moreover, the 1st display part and the 2nd display part should just be able to mark a wall surface at least, and may be the ink and graphite which color a wall surface. Further, the shape and material of each member can be arbitrarily changed as long as the effects of the present invention are exhibited.

  The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various modes as long as they belong to the technical scope of the present invention.

11 First installation structure 12 Second installation structure 110 Detector 111 Case 112 Detection plate 113 Detection unit (magnet)
114 Sliding contact portion 114a Plate body 114b Buffer 115 First display portion 116 Second display portion 118 Aiming portion 130 First drilling tool 131 Punching tool body 132 Punching blade 133 Positioning shaft 134 Engagement shaft 135 Cutting depth adjusting unit 136 Rotation Driving shaft 137 Annular contact surface 140 Electric tool 150 Second punching tool 151 Drilling tool main body 152 Drilling blade 153 Positioning shaft 155 Cutting depth adjusting portion 156 Rotation drive shaft 157 Annular contact surface 170 Wiring box 171 Opening portion 172 Mounting portion 173 Detected part 173a Magnet (part of the detected part)
174 Fixed portion d Distance between first and second display portions (distance between first and second drilling center positions)
W Wall material H1 First through hole (elliptical hole)
H2 Second through hole (polymerization hole)
C1 1st drilling center position (ellipse center position)
C2 Second drilling center position (round circle center position)

Claims (7)

Either a first through hole or a second through hole is formed in the wall material so that a pair of mounting portions for mounting the wiring device formed on the wiring box installed on the back of the wall face the wall surface. The first through hole is an elliptical hole, and the second through hole is a superposed hole in which a plurality of circular holes are connected,
A detection unit for detecting a detected portion of the wiring box from a wall surface; a first display unit for displaying an elliptical center position of the first through-hole on a wall surface; and a plurality of the second through-holes Detecting the position of the detected part of the wiring box from the wall surface using a detector comprising a plurality of second display parts for displaying the center position of the perfect circle on the wall surface;
While the detected portion is detected by the detector, the ellipse center position of the first through hole is displayed on the wall surface on the first display portion, and the second display portion displays the second ellipse center position on the wall surface. Displaying a plurality of circular center positions of the through holes;
When using the first drilling tool having a drilling blade capable of drilling in an elliptical shape, the drilling center position of the first drilling tool and the elliptical center position displayed on the wall surface of the first display unit are matched, When the second perforating tool having a perforating blade capable of perforating the wall material with the first perforating tool and having a perfect perforated shape is used, the drilling center position of the second perforating tool And the circular center position displayed on the wall surface by the second display unit are matched with each other, and a plurality of circular holes are sequentially formed in the wall material by the second punching tool to punch the second through hole. And a step of drilling a wall material.   The intermediate position of each of the pair of attachment portions matches the elliptical center position of the first through hole, and the detected portion is disposed at an intermediate position between the pair of attachment portions. 2. The drilling method according to 1. Either a first through hole or a second through hole is formed in the wall material so that a pair of mounting portions for mounting the wiring device formed on the wiring box installed on the back of the wall face the wall surface. The first through hole is an elliptical hole, and the second through hole is a superposed hole composed of a plurality of continuous circular holes,
A detection unit for detecting a detected portion of the wiring box from a wall surface; a first display unit for displaying an elliptical center position of the first through-hole on a wall surface; and a plurality of the second through-holes of a plurality of second display unit for displaying a perfect circle centered position on the wall, the detecting portion by said by said first display portion and the plurality of second display portion while detecting the object detecting portion A detector for displaying all of the center position of the ellipse and the center positions of the plurality of circles on the wall;
Any one of a first punch having a drilling blade capable of drilling in an elliptical shape and a second punch having a drilling blade capable of drilling in a circular shape;
With
When using the first perforating tool, the perforation center position of the first perforating tool is matched with the ellipse center position displayed on the wall surface of the first display unit, and the first perforating tool is attached to the wall material by the first perforating tool. When the first perforation can be drilled, and when the second perforation tool is used, the perforation center position of the second perforation tool and the center position of the perfect circle displayed on the wall surface of the second display unit The second perforation device is capable of perforating the second through hole by sequentially forming a plurality of circular holes in the wall material with the second perforation tool.   The drilling device according to claim 3, wherein the position of the detected portion of the wiring box on the wall surface matches the elliptical center position of the first through hole. A wiring device installation device for installing a wiring device on a wall material,
It has a pair of attachment parts for attaching the wiring apparatus, and a detected part detected from the wall surface, and the pair of attachments from the first through hole or the second through hole formed in the wall material. A wiring box that is installed on the back of the wall so that the part faces the wall surface, the first through hole is an elliptical hole, and the second through hole is a superposed hole in which a plurality of circular holes are connected;
A detection unit for detecting the detected portion of the wiring box from a wall surface, a first display unit for displaying an elliptical center position of the first through-hole on a wall surface, and a second through-hole and a plurality of second display unit for displaying a plurality of perfect circle center position on the wall, the by the first display portion and the plurality of second display portion while detecting the object detecting unit by the detection unit A detector for displaying all of the center position of the ellipse and the center positions of the plurality of perfect circles on a wall;
In order to drill the first through hole, a first drilling tool having a drilling blade capable of drilling in an elliptical shape with the center of the ellipse displayed on the wall surface of the first display unit as the center of drilling, and the second In order to drill a through hole, any one of the second drilling tools having a drilling blade capable of drilling in a circular shape with the center of the perfect circle displayed on the wall surface of the second display unit as the center of drilling. A wiring appliance installation apparatus comprising: A first through hole, which is an elliptical hole, and a plurality of circles are formed on the wall material so that a pair of attachment portions for attaching the wiring device formed on the wiring box installed on the back of the wall face the wall surface. In order to form either one of the second through holes, which are superposed holes that are continuous holes, an elliptical center position of the first through hole and a plurality of circular center positions of the second through hole are displayed on the wall surface. A drilling center position display device,
A wiring box having a detected part detected from the wall surface;
A detection unit for detecting the detected portion of the wiring box from a wall surface, a first display unit for displaying an elliptical center position of the first through-hole on a wall surface, and a second through-hole A plurality of second display units for displaying a plurality of center positions of the perfect circle on the wall surface, and the first display unit and the plurality of second display units in a state where the detected unit is detected by the detection unit. A perforation center position display device, comprising: a detector that displays all of the ellipse center position and the plurality of round circle center positions on a wall surface. Formed in the wiring box installed on the back of the wall by drilling one of the first through hole, which is an elliptical hole, and the second through hole, which is a superposed hole in which a plurality of circular holes are connected, to the wall material A detector for detecting the wiring box from the wall surface so that the pair of attachment portions for attaching the wiring device are made to face the wall surface through the first and second through holes,
A detection unit for detecting the detected part of the wiring box from the wall surface;
A first display for displaying an elliptical center position of the first through hole on a wall surface;
A plurality of second display parts for displaying a plurality of center positions of the circles of the second through holes on the wall surface;
The ellipse center position and the plurality of perfect circle center positions are all displayed on a wall surface by the first display section and the plurality of second display sections in a state where the detected section is detected by the detection section. Detector.

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