Gauge and wiring box device

Abstract

To provide a gauge with which, when establishing the horizontality and verticality of the gauge by a level in forming wall holes, it is possible to locate a marking unit for indicating the contours, etc., of wall holes at an exact attitude of installation.SOLUTION: A gauge 1 comprises: a body unit 10 including a level 22 and a marking unit for marking off and indicating a wall hole contour and a reference point by moving a writing instrument along the profiles of these; and a needle unit 29 that projects from the reverse side and is retained at a wall surface, and that restricts movement along the wall surface. When marking off a wall hole contour using the gauge 1, a specific position in the state of the contour of a wall hole scheduled to be formed being matched with the position of the marking unit is taken as a point of reference and the needle unit 29 is retained at this reference position. Furthermore, the whole of the gauge 1 is swung around the needle unit 29 as the axis of swinging until the level 22 indicates being horizontal, and the position of the marking unit is, thereby, matched with the contour of the wall hole scheduled to be formed. Thereafter, a writing instrument is moved along the marking unit to indicate the contour of the wall hole on the wall surface.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a gauge and a wiring box device for scribing the contour of a wall hole formed for installing a wiring device on a wall, the center position of a perforating tool for forming the wall hole, and the like.

Background Art

[0002] When installing wiring devices such as electrical outlets and switches on an interior wall, a wall hole is formed on the wall surface, a cable wired inside the wall is drawn out from the wall hole to the wall surface and connected to the wiring device, and then attached to the wall surface. Also, when installing a wiring box inside the wall and accommodating the wiring device therein, after forming the wall hole, the wiring box is inserted from the wall surface into the wall and installed, or the wiring box is first installed inside the wall, then the position of the wiring box is detected from the wall surface to form a wall hole, and then the cable inside the wall is passed through the wiring box, drawn out from the wall hole and connected to the wiring device, and this is attached to the wall surface.

[0003] When forming these wall holes, after scribing the contour of the wall hole and the perforation center position for forming the wall hole on the wall surface using a gauge, the wall surface is cut along the display to form the wall hole. Here, the wall hole is formed in various shapes such as a square hole and an oval hole corresponding to the contour of the shape and size of the wiring box to be installed. However, if the horizontal and vertical straightness of the contour of the wall hole displayed on the wall surface is not present, the formed wall hole and further the wiring device and the like may be inclined obliquely, resulting in a deteriorated appearance. For this reason, when scribing using a gauge, it is necessary to display an accurate contour with horizontal and vertical straightness on the wall surface.

[0004] However, since the wall surface is generally smooth and slippery, it is easy to shift in position when scribing along the scribing part while holding the gauge by hand, and during scribing, the gauge cannot be stably held on the wall surface and may not be accurately positioned.

[0005] Therefore, Patent Document 1 proposes a gauge that can attach a contour mark for forming a square hole on a wall surface. When attaching a contour mark for drilling a square hole with standardized dimensions, such as an outlet installation hole or a power switch hole, on the wall surface, this gauge is applied to the wall surface, and two stop pins that can protrude and retract from the back surface of the gauge body are stabbed into the wall surface, preventing the gauge body from slipping and shifting in position and enabling it to be held in a fixed posture.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, when stabbing the stop pins into the wall surface, the gauge described in Patent Document 1 is difficult to operate because while applying it to the wall surface and maintaining the position of the square hole, such as the height from the floor, the horizontal and vertical sides of the gauge are maintained in a horizontal and vertical posture while checking the spirit level. In particular, when forming in accordance with the contour of a wiring box for installing a wall hole on the wall surface, it is difficult to adjust the posture of the gauge while checking the spirit level so as to match the contour of the accurate installation posture of the wiring box.

[0008] Therefore, an object of the present invention is to provide a gauge and a wiring box device that can easily and accurately arrange a ruled portion in an accurate installation posture when measuring horizontal and vertical degrees with a spirit level in the formation of a wall hole.

Means for Solving the Problems

[0009] The gauge according to claim 1 is for ruling at least one of the contour of a wall hole formed for installing a wiring device on a wall and a reference point for forming the wall hole on the wall, a spirit level that can be viewed from the front, A main body having a ruled line portion that ruled lines and displays at least one of the contour and the reference point. A locking portion that protrudes from the back side and locks to the wall, suppresses movement along the wall surface, and serves as a rocking axis when the main body is rocked. Thereby, it is positioned at the reference point of the installation position of the wall hole, and by rocking the entire gauge with the locking portion as the rocking axis, it is easy to measure the horizontal and vertical degrees of the ruled line portion when arranging the gauge.

[0010] The gauge according to claim 2, in particular, the spirit level and the locking portion are provided side by side in the vertical direction at the center in the horizontal direction of the wall hole. Thereby, it is easy to perform the operation of measuring the horizontal and vertical degrees of the ruled line portion while visually checking the spirit level and rocking the locking portion in a sensory and visual manner. The gauge according to claim 3, in particular, the locking portion locks to the central position in the height direction of the wall hole. Thereby, the left and right balance is achieved with the locking portion as the axis, the entire gauge can be rocked evenly, and it is easy to adjust the gauge to a horizontal posture.

[0011] The gauge according to claim 4 includes a spirit level that can be confirmed from the front, a main body having a ruled line portion that ruled lines and displays at least one of the contour and the reference point, A positioning portion that protrudes from the back side and locks to the wall to restrict movement along the wall surface, and is provided with Based on a specific position in a state where the contour of the wall hole to be formed matches the position of the ruled line portion, the positioning portion is locked to this reference position, and the entire gauge is moved with the positioning portion as the rocking axis so that the spirit level indicates horizontal, thereby making the position of the ruled line portion match the contour and the reference point of the wall hole.

[0012] The gauge according to claim 5, in particular, the positioning portion locks inside the contour of the wall hole. Thereby, the damage to the wall caused by the locking portion is removed inside the wall hole when the wall hole is formed, and thus does not remain on the wall surface after the wall hole is formed, and therefore the appearance is not damaged. The gauge according to claim 6 is characterized in that the positioning part is separate from the main body and consists of a needle part that can pierce the wall with its tip. Thereby, the positioning part does not interfere with the work until it is arranged at the reference position. The gauge according to claim 7 is characterized in that the main body is provided with a through hole through which the needle part is inserted, and a guiding part is formed on the front side of the through hole, in which an alignment part provided at the base of the needle part is fitted to guide the needle part to the center of the through hole. Thereby, since the needle part can always be arranged at the same central position in the through hole, the ruled part can be arranged in a more accurate installation posture.

[0013] The wiring box device according to claim 8 comprises a wiring box installed on the back side of the wall and provided with a detected part that is detected from the front side of the wall and whose position is specified, a locking part that locks to the wall surface position specified by the detected part, a display part that displays at least one of the contour of the wall hole formed for installing a wiring fixture fixed to the wiring box and the reference point for forming the wall hole, and a level that can be confirmed from the front, and a gauge, the gauge can swing as a whole with the locked locking part as the rotation axis, and by rotating, the position of the display part can be arranged to coincide with the contour of the wall hole and the reference point.

Advantages of the Invention

[0014] The present invention suppresses or restricts movement along the wall surface and is provided with a locking part that serves as the swing axis when the main body swings. Therefore, when ruling along the ruled part, by locking the locking part at a specific reference position where the contour of the wall hole and the position of the ruled part coincide, it is possible to suppress or restrict the gauge from sliding and moving along the wall surface, and by swinging or rotating around the positioning point of the locking part, after locking the locking part, it is possible to concentrate on the work of checking the level and making the gauge horizontal and vertical. As a result, it becomes easier to make the gauge horizontal and vertical, and the ruled part can be easily arranged in an accurate installation posture.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Mode for Carrying Out the Invention

[0016] Hereinafter, the gauge of the embodiment of the present invention will be described with reference to the drawings. The gauge of the present embodiment is for scribing the outline of a wall hole formed for installing wiring devices such as a socket or a switch on a wall and a reference point for forming the wall hole. The gauge has a main body having a level that can be confirmed from the front, and a scribing portion for scribing and displaying the outline of the wall hole and the reference point along a writing instrument, and a locking portion that protrudes from the back side and locks to the wall to suppress movement along the wall surface and serves as a rocking axis for rocking the main body. In the installation of wiring devices on the wall surface, there are cases where a wiring box is attached to the back of the wall and cases where it is not. Hereinafter, each component will be described.

[0017] In FIGS. 1 to 4, the gauge 1 has a main body 10 formed in a rectangular plate shape by synthetic resin or the like. The outer peripheral edge 15 of the main body 10 is formed in the same size and shape as the outer peripheral size of the decorative plate 70 that covers the entire wall hole 41 of the wall surface 40 and the wiring device 60 shown in FIGS. 7 and 8, and can be used as a display portion 11 when checking the position and size of the outer peripheral edge of the decorative plate 70 with respect to the center of the wall hole 41 of the wall surface 40. However, the outer peripheral edge 15 of the main body 10 may be different from the position and size of the outer peripheral edge of the decorative plate 70 and may not display these.

[0018] On the vertical line portion V passing through the intermediate positions of the upper side 15a and the lower side 15b of the outer peripheral edge 15 of the gauge 1 in the vertical direction, the piercing center position of the holsaw, which is a piercing tool for drilling the wall hole 41, is indicated. At the intersection of the horizontal line portion H passing through the intermediate positions of the left side 15c and the right side 15d of the outer peripheral edge 15 of the gauge 1 in the horizontal direction, a gauge center ruling portion 16 is provided to indicate the position that is the center of the entire body 10 and also the center of the wall hole 41 formed by the oval hole 41a. Further, at positions vertically separated from there by a predetermined distance, a daruma hole center ruling portion 17 is provided to indicate the center positions of the circles of the wall hole 41 formed by the daruma holes 41b. These ruling portions 12 are formed by the through hole 26 shown in FIG. 4(d).

[0019] Also, these ruling portions 12 may be formed by the through holes 26 shown in FIGS. 5(c) and (d). This through hole 26 has a stepped portion 26a in the intermediate portion in the thickness direction of the main body 10 and is formed by a two-step hole with a large-diameter hole on the front side and a small-diameter hole on the rear side of the main body 10. The large-diameter hole of the through hole 26 has a diameter substantially the same as the outer diameter of the alignment portion 29d of the needle portion 29 to be described later and serves as a guide portion 26b for guiding the insertion of the alignment portion 29d, and the small-diameter hole is formed to have a size through which the stop needle 29b of the needle portion 29 can be inserted.

[0020] On the inner side at a predetermined distance from the outer peripheral edge 15 of the gauge 1, through grooves 18 with a constant width are provided in parallel along each side of the outer peripheral edge 15. The through grooves 18 are formed by ruling slits, and the outer and inner portions of the through grooves 18 are connected by a connecting portion 19 at the intermediate portions of the upper and lower pair of horizontal sides of the through grooves 18. The lower edge of the opposing outer inner wall slope 18a in the through groove 18 forms a contour ruling portion 13 that indicates the contour 42 of the wall hole 41 into which the retrofit wiring box 50a installed on the back of the wall can be inserted through the wall hole 41 after the wall hole 41 is formed. If the wall surface 40 is cut along this ruling portion to form the wall hole 41, the retrofit wiring box 50a can be inserted into the wall hole 41 from the wall surface side toward the back of the wall.

[0021] In addition, the inner wall slopes 18b facing each other in the through groove 18 form a contour ruled line portion 14 that indicates the contour 42 of the wall hole 41 for attaching wiring devices 60 such as switches and outlets from the wall surface side into the pre-installed wiring box 50b installed on the back of the wall before forming the wall hole 41. When the wall surface 40 is cut along the contour ruled line portion 14, a wall hole 41 having approximately the same size and shape as the opening 53 of the pre-installed wiring box 50b is formed.

[0022] In the present embodiment, the contour ruled line portion 13 and the contour ruled line portion 14 are formed at the lower edges of the outer wall slope 18a and the inner wall slope 18b of the common through groove 18, respectively. Note that the inner wall slopes on both sides of the through groove 18 are formed as slopes to facilitate ruling with a pen or the like of a writing instrument, but are not limited thereto.

[0023] Here, the through groove 18 is blocked by a connecting portion 19 where the middle portion of the horizontal side connects the outer portion and the inner portion. However, if ruled along the through groove 18, at least the rectangular corners are displayed on the wall surface 40, so the entire circumference can be ruled by connecting the corners with lines thereafter.

[0024] Also, on the vertical line portion V of the gauge 1, an instrument mounting position display portion 20 and an instrument mounting position display portion 21 formed of through holes are provided above and below the pair of upper and lower Daruma hole center ruled line portions 17, 17, respectively. These instrument mounting position display portions indicate the positions of the boss portions 55 to which screws 64 inserted through the pair of upper and lower screw through holes 63, 63 of the instrument mounting frame 61 are attached in the wiring box 50 to which the instrument mounting frame 61 of the wiring device 60 is attached. Corresponding to the positions of the boss portions 55 provided in the wiring box 50, the instrument mounting position display portion 20 indicates the positions with respect to the boss portions 55 provided on the sides close to the upper and lower sides of the opening 53, and the instrument mounting position display portion 21 indicates the positions with respect to the boss portions 55 provided on the sides away from the upper and lower sides of the opening 53.

[0025] The gauge 1 further includes a level 22, a detection unit 23, and a locking unit 27. The level 22 is a well-known instrument, and it is possible to confirm that the equipment is in a horizontal state based on the position of the bubble in the ether enclosed inside the glass tube. Thereby, it is possible to confirm that the horizontal line portion H of the rectangular gauge 1 is in a horizontal posture and the vertical line portion V is in a vertical posture.

[0026] The detection unit 23 searches for a detected unit 59 provided in a pre-installed wiring box 50b installed on the back side of the wall before forming the wall hole 41 by moving the back surface of the main body 10 shown in Fig. 1(b) along the wall surface 40a. It has a detection magnet 24 that can be magnetized to the detected unit 59 of the pre-installed wiring box 50b and a housing space 25 that houses the detection magnet 24 in a freely movable manner. As shown in Fig. 4(a) etc., the detection magnet 24 has a donut shape, and the central hole is a pen tip insertion hole 23a into which the tip of a pen or the like can be inserted.

[0027] The housing space 25 is formed with a tilting guide surface 25a that tilts toward the back side along the circumferential direction. When not detecting, the detection magnet 24 that is tilted with respect to the wall surface 40a by the tilting guide surface 25a is tilted toward the wall surface 40a and rises along it when it reaches directly above the detected unit 59 of the pre-installed wiring box 50b. The detection unit 23 can recognize from the front of the main body 10 that the gauge 1 has reached directly above the detected unit 59.

[0028] A locking unit 27 is provided below the detection unit 23. The locking unit 27 is formed by a needle portion 29 having a length such that the tip can be pierced into the wall surface 40. The locking unit 27 is also a positioning unit 28 that protrudes from the back side and locks to the wall surface 40 to restrict the gauge 1 from shifting and moving along the wall surface 40 when drawing grid lines. As shown in Figs. 5(a) and (b), the needle portion 29 includes a base portion 29a and a stop needle 29b provided on the tip side, and a gripping portion 29c for gripping with a finger is formed on the opposite side of the stop needle 29b.

[0029] Here, as shown in FIGS. 5(c) and 5(d), the needle portion 29 may be provided with an alignment portion 29d on the base portion 29a that fits into the guide portion 26b of the through hole 26. The outer diameter of the alignment portion 29d is formed to be substantially the same size as the inner diameter of the guide portion 26b of the through hole 26. Further, when the stop needle 29b of the needle portion 29 reaches the step portion 26a of the through hole 26 after being inserted into the through hole 26, the tip is formed to be the same height as or in contact with the wall surface 40a. Thereby, when the needle portion 29 is inserted into the through hole 26, the alignment portion 29d fits into the guide portion 26b and moves while being guided to descend, and the stop needle 29b of the needle portion 29 is disposed at the center within the through hole 26 and pierces and locks to the wall surface 40.

[0030] When not in use, the locking portion 27 is such that the needle portion 29 is held and accommodated in parallel along the plane of the main body 10 in a holding portion 30 provided below the detection portion 23 as shown in FIG. 4(b). The holding portion 30 is formed by accommodating a needle holding sponge 30a into which the needle portion 29 pierces inside a substantially columnar portion integrally provided in parallel with the front surface of the main body 10. When the locking portion 27 is not in use, the needle portion 29 is held and accommodated in the holding portion 30 in a state of piercing the needle holding sponge 30a. However, when not in use, the locking portion 27 may be accommodated and held at a location other than the holding portion 30, for example, a location separate from the main body 10.

[0031] At two locations at the lower end portion of the main body 10, a through hole 31 for piercing the wall surface 40 by passing a piercing member 37 such as the needle portion 29 and a through hole 32 provided at a position horizontally spaced apart therefrom are formed. Further, at a position away from the position where the locking portion 27 is provided, a plurality of concentric circle ruling hole groups 33 for ruling a plurality of concentric circles having different diameters centered on the piercing member 37 that has pierced the wall surface 40 through these through holes are formed. The plurality of concentric circle ruling hole groups 33 have small holes 34 arranged at two locations at the upper end portion and a plurality of small holes 34 arranged in two rows on a vertical line in the right half portion on the front surface of the main body 10. Note that the through holes and the small holes 34 are not limited to these numbers and positions.

[0032] As shown in FIG. 10, the piercing member 37 is passed through either the through hole 31 or the through hole 32 and pierced into the wall surface 40. The tip of a writing instrument is inserted into any one of the small holes 34 of the ruled line hole group 33 for multiple circles. If the writing instrument is rotated together with the gauge 1 around the piercing member 37, as shown in FIG. 11, a plurality of concentric circles with different diameters can be ruled.

[0033] Furthermore, in the main body 10, in a range of a predetermined width at the vertical intermediate position in both left and right outer portions adjacent to the vertical through groove 18, as shown in FIG. 4(c), the back side is formed into a thin wall that is slightly recessed. This thin wall portion with a certain width becomes a proximity portion 35 that bends and undergoes a proximity displacement with respect to the wall surface 40 by being pressed from the front side toward the wall surface 40. A plurality of temporary fixing claws 36 are formed as anti-slip members, which are small convex portions that are pressed against the wall surface 40 to generate frictional force, at the portion of the proximity portion 35 facing the wall surface 40.

[0034] By the way, when installing the wiring device 60 on the wall surface 40, it is often the case that a wiring box 50 is attached to the wall cavity and the wiring device 60 is accommodated and installed inside this. Therefore, next, an example of the assembly configuration of the wiring device 60 and the wiring box 50 will be described. As shown in FIGS. 7 and 8, in the wiring box 50, the wiring device 60 fixed to the device mounting frame 61 is accommodated in the internal space 54, and a decorative plate 70 is attached to cover and decorate the entire device mounting frame 61 and the wall hole 41 of the wall surface 40 on the front side of the wiring device 60.

[0035] The wiring box 50 is composed of a side wall 51 and a bottom wall 52, has an opening 53, and is formed in a box shape in which the opening 53 has various shapes such as an oval shape or a rectangular shape. Cables in the wall cavity are inserted through insertion holes 51a formed at the centers of the side walls 51 on the upper surface side and the lower surface side.

[0036] At the end portions on the inner surfaces of the side walls 51 on the upper side and the lower side, on the opening 53 side, a pair of boss portions 55 projecting toward the internal space 54 are provided so as to face each other in the vertical direction, and fixing holes 55a for fixing the appliance mounting frame 61 to the wiring box 50 are provided at the centers thereof. The fixing holes 55a are screwed from the wall surface side with screws 64 inserted through screw through holes 63 provided in the appliance mounting frame 61.

[0037] The appliance mounting frame 61 is formed in a vertically long rectangular plate shape, and a wiring appliance 60 is inserted and mounted in an opening 62 formed in the central portion, and is mounted in the opening 53 of the wiring box 50 in the vertically long direction. The wiring appliance 60 projects by a predetermined thickness on the front surface side, and the portion projecting from the back surface side is accommodated in the wiring box 50. A pair of screw through holes 63 each formed of a long hole through which a screw 64 is inserted are formed vertically in the middle portions in the width direction of the upper and lower portions of the appliance mounting frame 61. Note that the appliance mounting frame 61 also constitutes a part of the wiring appliance 60.

[0038] The decorative plate 70 is entirely formed in a rectangular frame shape, and a flange 72 having a certain height is erected on the back surface side along the outer peripheral edge of the rectangular frame plate-shaped decorative plate body 71. The outer peripheral size of the decorative plate 70 is formed to be large enough to cover at least the entire wiring appliance 60, the appliance mounting frame 61, and the wall hole 41 of the wall surface 40. An opening 73 into which the front surface side of the wiring appliance 60 is inserted is formed in the central portion of the decorative plate body 71, and the opening 73 is formed to have substantially the same size and shape as the outer shape of the wiring appliance 60. After installation, only the front surface of the wiring appliance 60 is exposed on the wall surface side by a slight height. Although not shown, the decorative plate 70 is attached to a decorative plate mounting frame attached to the appliance mounting frame 61 and is attached to the appliance mounting frame 61.

[0039] Next, the formation of the wall hole 41 in the wall surface 40 where the wiring appliance 60 is installed will be described. When forming the wall hole 41, first, the contour 42 and the reference point 43 of the wall hole 41 are scribed and displayed on the wall surface 40 using the gauge 1 of the present embodiment.

[0040] First, a case where the retrofit wiring box 50a is inserted into the wall hole 41 from the wall surface side after forming the wall hole 41 will be described. Here, the case where the wall hole 41 is the rectangular corner hole 41c shown in FIG. 7 is shown. At this time, the outline 42 of the wall hole 41 is indicated by scribing on the wall surface 40a along the contour grid portion 13 formed on the inner wall slope 18a outside the through groove 18. The scribed line indicates on the wall surface 40 the size into which the retrofit wiring box 50a can be inserted. In addition, as the wall hole 41, there are also those formed in a round hole, the oval hole 41a shown in FIGS. 8 and 9, the daruma hole 41b, and the like.

[0041] To indicate the outline 42 of the wall hole 41 of the corner hole 41c, first, measure from the wall surface side using a laser marking device or the like to determine the installation position of the wiring fixture 60 from the floor surface or the wall surface, or determine the position of the wall hole 41 based on an external standard or the like. Then, based on a specific position in a state where the outline 42 of the wall hole 41 to be formed and the contour grid portion 13 match, this position is defined as the reference position for locking the locking portion 27. The reference position is usually the horizontal and vertical center position of the wall hole 41 and is defined at the center position of the wiring fixture 60 or the decorative plate 70. However, the reference position may be defined at another position transcribed therefrom, for example, at the center position of the wall hole 41 of the daruma hole 41b or at any of the four corners of the decorative plate 70. Here, the reference position is the horizontal and vertical center position of the wall hole 41.

[0042] After determining the reference position, as shown in FIG. 6, the needle portion 29 is passed through the gauge center grid portion 16 and stabbed and locked at the reference position. At this time, if the needle portion 29 shown in FIGS. 5(c) and (d) is used, before the stop needle 29b is inserted into the through hole 26 and the tip pierces the wall surface 40, the alignment portion 29d fits into the guide portion 26b of the through hole 26, and the stop needle 29b moves while being guided to the center of the circle of the through hole 26 and pierces the wall surface 40. Therefore, after locking the needle portion 29 at the reference position, while looking at the level 22, the entire gauge 1 is rotated with the locked needle portion 29 as the swing axis and the rotation axis, and the rotation is stopped when the level 22 indicates horizontal. At the position where the rotation stops, the gauge 1 has a horizontal and vertical degree and becomes a horizontal and vertical posture, and the position of the contour grid portion 13 of the gauge 1 matches the outline 42 of the wall hole 41.

[0043] Next, at this position, along the contour ruled line portion 13 with a writing instrument, the contour 42 of the wall hole 41 is ruled and displayed on the wall surface 40. At this time, the needle portion 29 is locked to the wall surface 40, and by performing the operation while pressing the back side of the main body 10 against the wall surface 40, the temporary fixing claws 36 of the proximity portion 35 are in pressure contact with the wall surface 40, so that the gauge 1 can be prevented from being displaced. Further, when the needle portion 29 is locked at the reference position, in addition to this, at any other arbitrary position of the gauge 1, the piercing member 37 such as the needle portion 29 may be pierced into the wall surface 40. For example, if the needle portion 29 is pierced and locked into the gauge center ruled line portion 16 corresponding to the reference position, and the piercing member 37 is also pierced at any one position such as the instrument mounting position display portion 20 in the gauge 1, since it is pierced at two different positions on the plane of the main body 10, the gauge 1 can be held at a fixed position, and it is possible to surely prevent the gauge 1 from rotating about the reference position and shifting in angle during the ruling.

[0044] In addition, in the case of installing the retrofit wiring box 50a, when the wall hole 41 is the daruma hole 41b, similar to the case of the square hole 41c, the horizontal and vertical center positions of the wall hole 41 are defined as the reference position, the needle portion 29 is passed through the gauge center ruled line portion 16 and pierced at the reference position, and when the gauge 1 is set in the horizontal and vertical postures using the level 22, the position of the daruma hole center ruled line portion 17 coincides with the reference point 43 of the wall hole 41. Therefore, at this position, the contour 42 of the wall hole 41 and the reference point 43, that is, the center positions of the two circles of the daruma hole 41b are ruled and displayed.

[0045] Next, the case where the wall hole 41 is formed after previously installing the pre-installed wiring box 50b in the wall will be described. When the wall hole 41 is a rectangular square hole 41c for attaching wiring instruments 60 such as switches and outlets from the wall surface side into the pre-installed wiring box 50b and is of substantially the same size and shape as the opening 53 of the pre-installed wiring box 50b, ruling is performed along the contour ruled line portion 14 for displaying the contour 42 of the wall hole 41. In this case, the contour 42 of the wall hole 41 can be displayed by the same procedure as in the case of forming the wall hole 41 where the aforementioned retrofit box is installed.

[0046] On the one hand, when the wall hole 41 is a oval-shaped hole 41a as shown in FIGS. 8 and 9, first, the detection unit 23 of the gauge 1 detects the detected part 59 of the pre-installed wiring box 50b installed on the back of the wall from the wall surface. The detected part 59 of the pre-installed wiring box 50b is provided at the center of the opening 53 of the pre-installed wiring box 50b. When detecting the detected part 59, move the back surface of the main body 10 along the wall surface 40a, and when the detection magnet 24 of the detection unit 23 reaches directly above the detected part 59 of the pre-installed wiring box 50b, confirm the upward movement of the detection magnet 24 along the wall surface 40 to detect the detected part 59. Here too, the reference position is the horizontal and vertical center position of the wall hole 41, and the needle part 29 is inserted into the gauge center grid marking part 16 corresponding to this.

[0047] After detecting the detected part 59, insert the pen of the writing instrument into the pen tip insertion hole 23a of the detection unit 23 of the gauge 1 to mark the wall surface 40. Next, align the gauge center grid marking part 16 with the position of this mark. In this state, the gauge center grid marking part 16 is located directly above the detected part 59. Therefore, pierce and lock the needle part 29 into the gauge center grid marking part 16 set as the reference position. Subsequently, while looking at the level 22 in that state, rotate the entire gauge 1 with the locked needle part 29 as the swing axis and the rotation axis, and stop the rotation when the level 22 indicates horizontal. At the position where the rotation stops, the gauge 1 is in a horizontal and vertical posture, and the position of the gauge center grid marking part 16 coincides with the reference point 43 for forming the wall hole 41 to be formed.

[0048] Also, when the wall hole 41 is the daruma hole 41b shown in FIG. 9, the detected part 59 of the pre-installed wiring box 50b is provided at a position that coincides with the center position of either one of the two circles of the daruma hole 41b, which is separated by a predetermined distance in the vertical direction from the center of the opening 53 (not shown). The reference position is determined at this center position of one side. Therefore, first, detect this detected part 59 in the same manner as in the case of the oval-shaped hole 41a.

[0049] Once the position of the detected part 59 is detected, insert the pen of the writing instrument into the pen tip insertion hole 23a of the detection part 23 of the gauge 1 to mark the wall surface 40, and align the center grid drawing part 17 of the daruma hole corresponding to the detection part 23 with the position of the mark. Then, pierce and lock the needle part 29 into the center grid drawing part 17 of the daruma hole where the position coincides with the reference position. In this state, while looking at the level 22, rotate the entire gauge 1 around the locked needle part 29 as the axis, and stop the rotation when the level 22 indicates horizontal. At the position where the rotation stops, the gauge 1 is in a horizontal and vertical posture, and the positions of the upper and lower two center grid drawing parts 17 of the daruma hole coincide with the center positions of the two circles of the daruma hole 41b of the wall hole 41 to be formed respectively, and coincide with the reference point 43 for forming the wall hole 41.

[0050] Therefore, next, remove the needle part 29, and use a compass or the like to draw a circle around the center grid drawing part 17 of the daruma hole to display the contour 42 of the daruma hole 41b. In this case, instead of a compass, a circle can also be drawn using the piercing member 37, the through holes 31, the through holes 32, and the multi-circle drawing hole group 33 of the gauge 1. That is, as shown in FIG. 10, after passing the piercing member 37 through the through hole 31 or the through hole 32 and piercing it into the reference point 43 of the wall surface 40, insert the tip of the writing instrument into the small hole 34 that matches the radius of the wall hole 41 among the multi-circle drawing hole group 33, and draw a circle around the through hole 31 or the through hole 32 as shown in FIG. 11. Thereby, as shown in FIG. 9, the contours 42 of the upper and lower two daruma holes 41b can be displayed on the wall surface 40a. In this case, it is not necessary to bring a compass to the site separately, and if it is forgotten to bring it to the site, it can be handled with the gauge 1. In addition, these through holes and the small holes 34 of the multi-circle drawing hole group 33 can also be used when displaying circles other than the wall hole 41.

[0051] Also, when displaying the contour 42 of the oval hole 41a on the wall surface 40a, first, draw and display the daruma hole 41b composed of the upper and lower two circles on the wall surface 40a, and then, as shown in FIG. 9, it can be displayed by connecting the left end points and the right end points of the daruma hole 41b with a straight line.

[0052] In addition, in the grid drawing operation of the contour 42 of the wall hole 41 and the reference point 43 described above, the reference position for locking the needle portion 29 which is the locking portion 27 is determined at the horizontal and vertical center position of the wall hole 41 or the center position of one of the two circles of the daruma hole 41b. However, the reference position is the position where the needle portion 29 is locked to the wall surface 40 in order to maintain the arrangement state in which the contour 42 of the wall hole 41 and the grid drawing portion 12 coincide when the grid 42 etc. are drawn on the wall surface 40 and the gauge 1 is arranged in the horizontal and vertical postures, and it may be determined at a position other than the above. However, if the reference position is determined at the above position, the left and right balance is achieved, and thus the horizontal and vertical alignment work is easy.

[0053] Next, after displaying the contour 42 of the wall hole 41 and the reference point 43 on the wall surface 40 in this way, in order to form the wall hole 41, when the wall hole 41 is a square hole 41c etc., the wall surface 40 is cut along the contour 42 using a saw or the like. Further, even when the wall hole 41 is a oval hole 41a or a daruma hole 41b etc., in the case where the drilling tool is forgotten at the site, the drilling tool is not charged, or it is not prepared because there is only one place, etc., it is cut along the contour 42 using a saw or the like. Therefore, in such a case, it is necessary to use the cage 1 to display the contour 42 of the wall hole 41.

[0054] On the other hand, when forming the wall hole 41 using a drilling tool such as a horso, with the reference point 43 drawn on the wall surface 40a as the drilling center, the daruma hole 41b shown in FIG. 9 can be formed by drilling in a state where the two circular holes of the daruma hole 41b are partially overlapped and connected vertically. Further, when forming the oval hole 41a, after forming the daruma hole 41b, it can be formed by cutting the hatched portion shown in FIG. 9 protruding to the inner side of the overlapping portion with a saw or the like. Note that the oval hole 41a can also be formed by one drilling using a horso dedicated to the oval hole.

[0055] Next, in order to install the wiring device 60 after forming the wall hole 41 in this way, in the case of the retrofit wiring box 50a, for example, as shown in FIG. 7, grooves 51b are formed in the upper and lower side walls 51 of the retrofit wiring box 50a, bolts 56 are fitted into the grooves 51b, plate claws 57 are attached to the rear ends of the bolts 56, and the bolts 56 are screwed in from the wall surface side, so that the wall surface 40 is clamped between the plate claws 57 and the flanges 58 protruding from the left and right side edges of the opening 53 of the retrofit wiring box 50a, and the retrofit wiring box 50a is fixed and attached to the wall hole 41. In the case of the pre-installed wiring box 50b, although not shown, it is attached to a column provided on the back of the wall using screws.

[0056] Subsequently, although not shown, the cable on the back of the wall is inserted into the insertion hole 51a of the side wall 51 of the wiring box 50 and pulled out into the internal space 54 of the wiring box 50. Further, the end of the cable is pulled out from the opening 53 of the wiring box 50 to the wall surface side and connected to the wiring device 60. Then, the fixture mounting frame 61 to which the wiring device 60 is attached is brought into contact with the wall surface 40a, and the wiring device 60 and the end of the cable are accommodated in the internal space 54 of the wiring box 50. Next, screws 64 are inserted through the screw through holes 63 of the fixture mounting frame 61 and screwed into the fixing holes 55a of the boss portion 55 of the wiring box 50 to attach the fixture mounting frame 61.

[0057] Finally, the decorative plate 70 is attached from the front side of the fixture mounting frame 61. As a result, only the front portion of the wiring device 60 is exposed, and the entire front side of the wall hole 41 and the fixture mounting frame 61 is covered with the decorative plate 70.

[0058] By the way, the above embodiment also constitutes the following wiring box device. That is, a wiring box 50 provided on the back side of the wall and having a detected portion 59 that is detected from the wall surface side and whose position is specified, a locking portion 27 that locks to the wall surface position specified by the detected portion 59, a display portion that displays at least one of the contour 42 of the wall hole 41 formed for installing the wiring device 60 fixed to the wiring box 50 and the reference point 43 for forming the wall hole 41, and a level 22 that can be confirmed from the front, and a gauge 1. comprising The gauge 1 can swing as a whole with the locked locking part 27 as the swing axis, and by rotating it, the position of the display part can be arranged at a position that coincides with at least one of the contour 42 of the wall hole 41 and the reference point 43. Wiring box device.

[0059] Next, the operation of the gauge 1 of this embodiment will be described. The gauge 1 restricts movement along the wall surface 40a and has a locking part 27 that serves as the rotation axis when the main body 10 is rotated. Therefore, when scribing along the scribing part 12, the locking part 27 is locked at the reference position determined in a state where the contour 42 of the wall hole 41 to be formed coincides with the position of the scribing part 12, so that the gauge 1 can be prevented from sliding and moving along the wall surface 40a. By rotating with the locking part 27 as the rotation axis, after the locking part 27 is locked, it is possible to concentrate on the operation of checking the spirit level 22 and making the gauge 1 horizontal and vertical. As a result, the operation of making the gauge 1 horizontal and vertical becomes easier, and the scribing part 12 can be easily arranged in an accurate installation posture.

[0060] Also, since the spirit level 22 and the locking part 27 are provided side by side in the vertical direction at the center of the wall hole 41 in the horizontal direction, it is easy to perform the operation of making the scribing part 12 horizontal and vertical while visually checking the spirit level 22 and swinging the locking part 27. In addition, since the locking part 27 locks at the center in the horizontal direction of the wall hole 41 and at the center position in the height direction, the left and right can be balanced with the locking part 27 as the axis, and the entire gauge 1 can be swung evenly, making it easy to adjust the gauge 1 to a horizontal posture.

[0061] Furthermore, since the positioning part 28 locks inside the contour 42 of the wall hole 41, the damage to the wall surface 40 by the needle part 29 will not remain on the wall surface 40 after the formation of the wall hole 41 because the inner part is removed during the formation of the wall hole 41. Therefore, the appearance will not be damaged by the locking of the locking part 27.

[0062] And since the positioning portion 28 is separate from the main body 1 and consists of a needle portion 29 whose tip can be pierced into the wall surface 40, it does not interfere with the work until it is placed at the reference position. Further, the main body 10 is provided with a through hole 26 through which the needle portion 29, which is the positioning portion 28, is inserted. When the through hole 26 is formed with a guiding portion 26b on its front side, into which an alignment portion 29d provided at the base 29a of the needle portion 26 fits and the needle portion 29 is guided to the center of the through hole 26, when piercing the wall surface 40 with the needle portion 29, it is possible to prevent the stop needle 29b from being disposed at a position deviated from the center within the through hole 26 and always dispose it at the center position within the through hole 26. Thereby, the ruled portion 12 of the gauge 1 can be disposed in a more accurate installation posture with respect to the wall surface 40.

[0063] In addition, since a part of each of the outline ruled portions 13 and 14 of the ruled portion 12 is formed by a common through groove 18, the entire gauge 1 is configured to be compact and simple. Further, since these ruled portions 12 are formed in the through groove 18, a writing instrument can be smoothly ruled along the through groove 18.

[0064] By the way, in the above embodiment, the case where the wiring box 50 is installed in the wall when installing the wiring device 60 on the wall surface 40 has been described. However, in the case where the wiring device 60 is installed without installing the wiring box 50, the contour 42 and the reference point 43 of the wall hole 41 can be ruled and displayed using the gauge 1 in the same manner as in the above embodiment.

[0065] Also, the ruled portion 12 of the above embodiment may display only one of the contour 42 and the reference point 43 of the wall hole 41.

[0066] Furthermore, although a part of the contour 42 of the wall hole 41 is not displayed when ruled along the outline ruled portions 13 and 14 of the above embodiment, they may be configured to display the entire contour 42. For example, the outline ruled portion 13 may be formed on the outer peripheral edge 15 of the main body 10. In addition, although the outline ruled line portions 13 and 14 are formed by a common through groove 18, they may be formed by separately provided through grooves or the like. And, the end faces of the outline ruled line portions 13 and 14 are formed as inclined surfaces, but they may be formed as vertical surfaces or as inclined surfaces inclined in the reverse direction.

[0067] In addition, in addition to writing on the wall surface 40 along the writing instrument, the ruled line portion 12 of the above-described embodiment may be one that is displayed on the wall surface 40 by a stamp mark or a scratch by piercing. In this case, the stamp mark or the pierced portion becomes the ruled line portion 12. Also, regarding the display portion of the wiring box device in the claims, in addition to the outline ruled line portions 13, 14, the gauge center ruled line portion 16, and the Daruma hole center ruled line portion 17, a portion where a stamp mark or a pierced and damaged portion may be used as the display portion.

[0068] In the needle portion 29 of the above-described embodiment, only one stop needle 29b is provided, but as shown in FIG. 12, a plurality of stop needles may be provided. As shown in FIGS. 12(a) to (c) of this needle portion 29, two stop needles 29b project from the bottom surface of the base portion 29a. FIG. (d) of the same figure shows a needle portion 29 provided with three stop needles 29b, and FIG. (e) of the same figure shows a needle portion 29 provided with four stop needles. Note that the needle portion 29 is more difficult to guide compared to the alignment portion 29d of the needle portion 29 in FIGS. 5(c) and (d), but these plurality of stop needles 29b may be guided by the guide portion 26b of the through hole 26.

[0069] Furthermore, the locking portion 27 and the positioning portion 28 of the above-described embodiment are composed of the needle portion 29, but as shown in FIG. 13, they may be formed of elastic pieces 38. The elastic pieces 38 are provided on the vertical line portion V of the gauge 1 or the like, and as shown in FIG. 13(a), they are formed in a strip shape inside a groove that is notched in a U shape in the main body 10, and can be elastically bent in the vertical direction with the base end of the elastic piece 38 as the axis. As shown in FIG. 13(b), a needle-like locking projection 38a is provided at the tip of the back surface side of the elastic piece 38. When the upper surface is pressed, the elastic piece 38 bends downward as shown in FIG. 13(c), and the locking projection 38a pierces and locks into the wall surface 40. Alternatively, the projection protruding from the tip of the back surface side of the elastic piece 38 may be formed of a short columnar elastic material such as rubber, and when the elastic piece 38 is pressed, the tip surface of this projection comes into pressure contact with the wall surface 40 and is locked in the reference position.

[0070] Also, the locking portion 27 is locked by piercing the wall surface 40, but it is not limited to this. For example, an adhesive is applied to the tip or a rubber plate is attached and locked to the wall surface 40 by adhesion, or the tip is formed of a short columnar elastic body that can expand and contract in the axial direction and is elastically pressed against the wall surface 40 to be locked. In this case, the locking portion 27 does not need to pierce the wall surface 40, and suppresses the movement of the gauge 1 along the wall surface 40 during grid drawing due to the sliding resistance caused by the frictional force with the wall surface 40.

[0071] The main body 10 of the above-described embodiment is formed in a rectangular plate shape, but it is not limited to this shape. Depending on the shapes of the wall hole 41 of the wall surface 40, the wiring box 50, the wiring fixture 60, etc., it may be formed in a square plate shape, a circular plate shape, an elliptical plate shape, an oval plate shape, a daruma-shaped plate shape, or the like.

[0072] Furthermore, although the wiring box 50 of the above embodiment is shown as a single unit, it can also be applied when a wiring box formed by combining a plurality of units is installed. Examples of such a wiring box include one formed by arranging two or three wiring boxes in series horizontally, or one formed by arranging four wiring boxes in two rows each horizontally and vertically, and the wall hole 41 is also formed in a corresponding size and shape.

Description of Reference Numerals

[0073] 1: Gauge, 10: Main body, 12: Grid section, 13: Outline grid section A, 14: Outline grid section B, 16: Gauge center grid section, 17: Daruma hole center grid section, 22: Level, 26: Through hole, 26b: Guide part, 27: Locking part, 28: Positioning part, 29: Needle part, 29a: Base part, 29d: Alignment part, 40: Wall surface, 40a: Wall surface, 41: Wall hole, 41a: Oval hole, 41b: Daruma hole, 41c: Square hole, 42: Outline, 43: Reference point, 50: Wiring box, 50b: Prefixed wiring box, 60: Wiring fixture, H: Horizontal line part, V: Vertical line part.

Claims

1. A gauge for scribing at least one of the contour of a wall hole formed for installing a wiring device on a wall and a reference point for forming the wall hole on the wall, comprising: a spirit level visible from the front; a main body having a scribing portion for scribing and displaying at least one of the contour and the reference point; and a locking portion protruding from the back side and locking to the wall to suppress movement along the wall surface and serving as a rocking axis when the main body is rocked. The gauge is characterized by comprising the above.

2. The gauge according to claim 1, wherein the spirit level and the locking portion are provided side by side in the vertical direction at the center of the wall hole in the horizontal direction.

3. The gauge according to claim 2, wherein the locking portion locks to the central position in the height direction of the wall hole.

4. A gauge for scribing at least one of the contour of a wall hole formed for installing a wiring device on a wall and a reference point for forming the wall hole on the wall, comprising: a spirit level visible from the front; a main body having a scribing portion for scribing and displaying at least one of the contour and the reference point; and a positioning portion protruding from the back side and locking to the wall to regulate movement along the wall surface. The gauge comprises: With reference to a specific position in a state where the contour of the wall hole to be formed coincides with the position of the scribing portion, the positioning portion is locked to this reference position, and with the spirit level indicating horizontal, the entire gauge is moved with the positioning portion as the rocking axis so that the position of the scribing portion coincides with the contour of the wall hole to be formed and the reference point. The gauge is characterized by this.

5. The gauge according to claim 4, wherein the positioning portion locks inside the contour of the wall hole.

6. The gauge according to claim 4 or claim 5, wherein the positioning portion is separate from the main body and consists of a needle portion whose tip can be pierced into the wall.

7. The main body of the gauge according to claim 6 is provided with a through hole for inserting the needle portion, and on the front side of the through hole, a guiding portion is formed in which an alignment portion provided at the base of the needle portion fits and the needle portion is guided to the center of the through hole.

8. A wiring box installed on the back side of the wall and provided with a detected portion that is detected from the front side of the wall surface and whose position is specified. A locking portion that locks to the wall surface position specified by the detected portion, a display portion for displaying at least one of the contour of the wall hole formed for installing a wiring device fixed to the wiring box and a reference point for forming the wall hole, and a level that can be confirmed from the front. A gauge comprising: A wiring box device comprising: The gauge is characterized in that the entire gauge can swing about the locked locking portion as a rotation axis, and by rotating, the position of the display portion can be arranged at a position that coincides with the contour of the wall hole and the reference point. A wiring box device.

Images