JP2020159934A - Detection tool - Google Patents

Abstract

To provide a detection tool capable of inhibiting a covering member from being lost when a marking part is exposed.SOLUTION: A magnet detector 20 includes: a housing 21 having a sliding contact surface 34; a detection part provided inside the housing 21; and a marking part 65 exposed from the sliding contact surface 34 to the outside of the housing 21 and expressing the detected position of a permanent magnet on the surface of a wall material. Also, the magnet detector 20 includes a covering member 22 integral with the housing 21 and covering the marking part 65. The covering member 22 is movable to a first position covering the marking part 65 and a second position P2 which exposes the marking part 65 and is positioned on the same plane as the sliding contact surface 34.SELECTED DRAWING: Figure 5

Description

The present invention relates to a detector that detects a body to be detected arranged on the back side of a concealing material of a building from the front side of the concealing material.

Wiring fixtures such as switches that are attached to the wall of a building are attached to a wiring box arranged on the back side of the wall material. The wiring box is a bottomed square box that opens to the front. The wiring box is attached to a structure such as a pillar so that the opening side faces the back surface of the wall material before the wall material is arranged on the opening side of the wiring box. After the wiring box is attached to the structure, a wall material is installed on the opening side of the wiring box, and the wiring box is hidden behind the wall material. Then, when connecting a wiring device such as a switch to the wiring box, the position of the wiring box is searched from the front side of the wall material, and a hole is made in the wall material at a hidden position of the detected wiring box. The wiring box is exposed to the front side of the wall material, and the wiring equipment is attached to the wiring box.

In order to find the position of the wiring box from the front side of the wall material, a magnet is arranged in the wiring box, and a detector is used to find the position of the wiring box by detecting the magnet (for example, patent). Document 1). The magnet detector described in Patent Document 1 detects a magnetic flux line generated from a magnet by a Hall element, and shows the detection result of the Hall element to a user by a display means. After detecting the magnet from the front side of the wall material, the position of the detected magnet is indicated on the surface of the wall material. The magnet detector of Patent Document 1 includes a stamp for indicating the position of the magnet on the surface of the wall material. This stamp is covered and protected by a covering member when not in use in the magnet detector.

JP-A-2007-101451

However, in the magnet detector of Patent Document 1, there is a risk that the covering member may be lost when the stamp is exposed for marking.
An object of the present invention is to provide a detector capable of preventing the covering member from being lost when the marking portion is exposed.

The detector for solving the above problems is a detector that detects the detected object arranged on the back side of the concealing material of the building from the front side of the concealing material, and is used when detecting the detected object. A housing having a sliding contact surface along the surface of the concealing material, a detection unit provided inside the housing and arranged on the back side of the concealing material to detect the detected body, and the detection unit. The covering member includes a marking portion for indicating the position of the detected object detected by the portion on the surface of the concealing material, and a covering member assembled to the housing and covering the marking portion. A first position that covers the marking portion and a second position that exposes the marking portion and is located on the same surface as the sliding contact surface or away from the surface of the concealing material from the sliding contact surface. The gist is that it can be moved to.

Further, regarding the detector, the covering member may be assembled to the housing so as to be slidably movable between the first position and the second position along the surface direction of the sliding contact surface. ..
Further, regarding the detector, the housing houses the slide groove extending in the sliding direction in which the covering member slides, and the covering member recessed from the sliding contact surface at the second position of the covering member. The slide groove is continuous with the groove portion located on the first position side in the slide direction and the second position side in the slide direction with respect to the groove portion. It is composed of an expansion groove portion that spreads toward the side opposite to the sliding contact surface and is wider than the groove portion, the covering member includes a hooking protrusion that is inserted into the slide groove, and the covering member is in the second position. The covering member may be movable to a position where it is housed in the accommodating recess by inserting the hooking protrusion into the expansion groove portion.

Further, regarding the detector, the housing has a base portion having the sliding contact surface and the accommodating recess, and a cover main body for accommodating the detection portion together with the base portion, and between the base portion and the cover main body. The slide groove is located at the base, and the base portion and the cover body can be relatively moved along the lateral direction of the slide groove so as to narrow the groove width, and the covering member is located at the first position. When doing so, it may have a regulation structure that regulates the relative movement of the marking portion and the sliding contact surface.

Further, regarding the detector, in a state where the base portion and the cover main body do not move relative to each other, the marking portion is located at a position reserved inside the housing from the sliding contact surface, and the base portion and the cover body are located. Due to the relative movement of the main body, the marking portion and the sliding contact surface move relatively in the direction intersecting the sliding contact surface, and the relative movement causes the marking portion to protrude from the sliding contact surface. It is possible, and when the covering member is located at the first position, the regulation structure may be formed by inserting the hooking protrusion into the groove.

Further, regarding the detector, the housing includes a shaft support portion that supports the base portion and the cover body in order to relatively move the base portion and the cover body, and presses the cover body toward the surface of the concealing material. The cover body is tilted relative to the base portion with the shaft support portion as the center of tilt, and the marking portion provided at a position reserved from the sliding contact surface to the inside of the housing is more than the sliding contact surface. You may let it pop out.

According to the present invention, it is possible to prevent the covering member from being lost when the marking portion is exposed.

A perspective view of a state in which the permanent magnet of the wiring box on the back side of the wall material is detected by a magnet detector. The perspective view which shows the magnet detector from the covering member side. An exploded perspective view showing a magnet detector. An exploded perspective view showing a housing and a covering member. The perspective view of the state where the covering member is located at the 2nd position, and the marking part protrudes. A side view showing a state in which the covering member is located at the first position. FIG. 5 is a cross-sectional view showing a state in which the covering member is located at the first position. A side view showing a state in which the covering member is located at the second position. A side view showing a state in which the marking portion protrudes from the sliding contact surface.

Hereinafter, an embodiment in which the detector is embodied will be described with reference to FIGS. 1 to 9. In the following description, the "top", "bottom", "left", "right", "front (front)", and "back (rear)" of the wiring box 11 and the magnet detector 20 are the arrows Z1 shown in FIG. The direction is the vertical direction, the direction of the arrow Z2 is the left-right direction, and the direction of the arrow Z3 is the front-back (front-back) direction.

First, the wiring box 11 as the arrangement will be described.
As shown in FIG. 1, the wiring box 11 made of synthetic resin has a rectangular plate-shaped bottom wall 13 and a peripheral wall 12 erected from the four side peripheral edges of the bottom wall 13, and has an opening on the front surface. It has a square bottom box shape. The wiring box 11 is provided with a wiring penetration portion 12a on the upper wall through which a cable (not shown) can be routed. The wiring box 11 includes a cylindrical support portion 14 projecting from the bottom wall 13 toward the opening side. The wiring box 11 includes a permanent magnet 15 supported by the support portion 14. The permanent magnet 15 is exposed toward the opening of the wiring box 11.

The wiring box 11 includes a plurality of mounting holes 16 penetrating the left side wall. Then, the wiring box 11 is attached to the pillar 17 by screwing the screw 19 from the mounting hole 16 into the pillar 17 as a structure for constructing a building. A wall material 18 as a concealing material is arranged on the opening side of the wiring box 11 attached to the pillar 17, and the wiring box 11 is concealed on the back side of the wall material 18.

Next, the magnet detector 20 will be described. The magnet detector 20 is a detector that detects a permanent magnet 15 as a detected body arranged on the back side of the wall material 18 from the front side of the wall material 18.
As shown in FIG. 1 or 2, the magnet detector 20 has a housing 21 constituting the outer shell, a covering member 22 assembled to the housing 21, and inside the housing 21 as shown in FIG. It is provided with a detection unit 60 provided. As shown in FIG. 1 or 2, the housing 21 is formed of a synthetic resin material in a rectangular box shape, and has a sliding contact surface 34 along the surface of the wall material 18 on the rear surface when the permanent magnet 15 is detected. Prepare for. The covering member 22 is assembled to the housing 21 so as to be slidable in the longitudinal direction along the surface direction of the sliding contact surface 34. In the following description, the direction in which the covering member 22 slides and moves is defined as the slide direction S. The slide direction S coincides with the longitudinal direction of the housing 21. The width direction W of the housing 21 is defined as a direction along the sliding contact surface 34 and orthogonal to the sliding direction S. The width direction W coincides with the lateral direction of the housing 21. Further, the direction orthogonal to the sliding contact surface 34 is defined as the thickness direction D of the housing 21.

As shown in FIG. 3, the housing 21 is composed of a bottomed square box-shaped base 30 that opens on one side and a covered square box-shaped cover body 50 that opens on one side. The housing 21 is configured by assembling the base 30 and the opening surfaces of the cover body 50 so as to face each other.

As shown in FIG. 3 or 4, the base 30 stands from a rectangular plate-shaped bottom plate 31, a long side wall 32 erected from a pair of long edges of the bottom plate 31, and a pair of short edges of the bottom plate 31. It is provided with a short side wall 33 provided. The bottom plate 31 is provided with a flat surface-like sliding contact surface 34 on the outer surface. The sliding contact surface 34 is provided on a part of the outer surface of the bottom plate 31 near one end (upper end) of the slide direction S, and is provided from substantially the center of the slide direction S to the other end (lower end). Therefore, the sliding contact surface 34 is separated on both sides in the sliding direction S. The base portion 30 is provided with an accommodating recess 35 between the sliding contact surfaces 34 separated on both sides in the sliding direction S, and the accommodating recess 35 is recessed from the sliding contact surface 34. When the accommodating recess 35 is viewed from the outside in the thickness direction D, the inner bottom surface 35a of the accommodating recess 35 has a rectangular shape. The accommodating recess 35 has an inner bottom surface 35a parallel to the sliding contact surface 34 and an inner surface surface 35b rising from both end edges of the inner bottom surface 35a in the sliding direction S. The inner bottom surface 35a and the inner side surface 35b have a flat surface shape.

The base portion 30 includes a tilting recess 36 that is recessed from a sliding contact surface 34 near one end in the sliding direction S. When the tilting recess 36 is viewed from the outside in the thickness direction D, the tilting recess 36 has a rectangular shape. The bottom surface of the tilting recess 36 is recessed from the inner bottom surface 35a of the housing recess 35. The base portion 30 is provided with a through hole 37 substantially in the center of a sliding contact surface 34 provided in substantially half from the center to the other end in the slide direction S, and is provided with a positioning recess 34a closer to the accommodating recess 35 than the through hole 37. .. The positioning recess 34a has a circular hole shape.

Further, the base portion 30 includes slide grooves 38 provided in each long side wall 32. That is, the housing 21 is provided with slide grooves 38 on both end faces in the width direction W. Therefore, the housing 21 includes the slide groove 38 and the accommodating recess 35. Each slide groove 38 is recessed from the outer surface of each long side wall 32. The slide groove 38 extends in the slide direction S. The slide groove 38 is composed of an expansion groove portion 39 forming from substantially the center to one end in the slide direction S and a groove portion 40 forming from substantially the center to the other end in the slide direction S.

As shown in FIG. 6, the dimensions of the expansion groove 39 in the slide direction S are the same as the dimensions of the accommodating recess 35 in the slide direction S. Here, when the base portion 30 is viewed along the width direction W, assuming a virtual line L1 that passes through each end edge of the expansion groove portion 39 in the slide direction S and extends in the thickness direction D, the virtual line L1 is , Each inner side surface 35b of the accommodating recess 35 is passed. Therefore, the expansion groove 39 and the accommodating recess 35 are provided at the same position in the thickness direction D.

The size of the expansion groove 39 along the thickness direction D is larger than the size of the groove 40 along the thickness direction D. That is, the groove width, which is the dimension of the slide groove 38 in the lateral direction, is wider in the expansion groove portion 39 than in the groove portion 40. The expansion groove portion 39 extends toward the side opposite to the sliding contact surface 34 along the thickness direction D as compared with the groove portion 40. Of the edge edges facing the thickness direction D of the slide groove 38, if the edge edge closer to the sliding contact surface 34 is the first edge edge 38a and the edge edge far from the sliding contact surface 34 is the second edge edge 38b, it is expanded. By providing the groove portion 39, the second end edge 38b has a step at the boundary between the expansion groove portion 39 and the groove portion 40. On the other hand, the first edge 38a extends linearly in the sliding direction S, and there is no step between the expansion groove 39 and the groove 40.

As shown in FIG. 3, the base portion 30 includes a rotation shaft 32a on the inner surface of each long side wall 32. Each rotation shaft 32a projects from the inner surface of each long side wall 32 on one end side in the slide direction S. The pair of rotating shafts 32a face each other in the width direction W. The base portion 30 is provided with a retaining projection 32b on the inner surface of each long side wall 32 on the other end side in the sliding direction S. The pair of retaining protrusions 32b face each other in the width direction W. Assuming that the tip of each long side wall 32 in the direction of protrusion from the bottom plate 31 is the tip edge, each long side wall 32 includes a notch 32c that is recessed from the tip edge toward the bottom plate 31.

The base portion 30 is provided with a base portion side recess 33a on the short side wall 33 on the other end side in the slide direction S. The base side recess 33a is provided at the center of the edge of the short side wall 33 extending in the width direction W, and is recessed in a rectangular shape from the edge of the short side wall 33 toward the bottom plate 31.

The base portion 30 includes a pair of level holding portions 33b on the short side wall 33 on one end side in the sliding direction S. The pair of level holder holding portions 33b are provided on the outer surface of the short side wall 33, and are erected with a gap in the width direction W. The level 42 is held in a space surrounded by the outer surface of the short side wall 33 and the pair of level holding portions 33b. Therefore, the magnet detector 20 includes a level 42, which is integrated with the base 30.

Next, the cover body 50 will be described.
As shown in FIG. 1 or 3, the cover main body 50 includes a rectangular plate-shaped cover plate 51, a cover long side wall 52 erected from a pair of long edges of the cover plate 51, and a pair of cover plates 51. A cover short side wall 53 erected from the short edge portion is provided. The cover plate 51 is provided with a plurality of through holes 51a in a portion from substantially the center to one end in the slide direction S. The plurality of through holes 51a are arranged in a matrix of 7 rows × 7 columns. Further, the distance between the through holes 51a adjacent to each other in the slide direction S and the distance between the through holes 51a adjacent to each other in the width direction W are equal. The cover plate 51 is provided with a switch through hole 51b on the other end side in the slide direction S.

The cover main body 50 includes a gripping recess 55 recessed in the width direction W from the outer surface of each cover long side wall 52. Each gripping recess 55 is provided on the other end side in the slide direction S. Each gripping recess 55 is recessed in a rectangular shape when viewed from the outer surface of each cover long side wall 52. The cover body 50 includes a frame portion 56 extending along the edge of the gripping recess 55. The frame portion 56 projects from the outer surface of the cover long side wall 52 so as to be orthogonal to the outer surface of the cover long side wall 52. In each cover long side wall 52, assuming that the tip in the direction of protrusion from the cover plate 51 is the tip edge, each frame portion 56 includes a contact end edge 56a that protrudes from the tip edge of the cover long side wall 52. The abutting edge 56a extends linearly in the sliding direction S.

The cover main body 50 is provided with a shaft hole 52a in each cover long side wall 52. Each shaft hole 52a is bored on one end side of each cover long side wall 52 in the slide direction S. Further, the cover main body 50 is provided with a retaining hole 52b in each cover long side wall 52. Each retaining hole 52b is an elongated hole whose length extends in the thickness direction D. The pair of retaining holes 52b face each other in the width direction W. As shown in FIG. 7, the cover main body 50 includes a pair of boss portions 54 on the inner surface of the cover plate 51. The pair of boss portions 54 are arranged on both sides in the width direction W on the inner surface of the inner surface of the cover plate 51 on the other end side in the slide direction S.

The cover body 50 is provided with a cover-side recess 53a on the cover short side wall 53 on the other end side in the slide direction S. The cover-side recess 53a is provided at the center of the edge of the cover short side wall 53 extending in the width direction W, and is recessed in a rectangular shape from the edge of the cover short side wall 53 toward the bottom plate 31. The cover short side wall 53 on one end side in the slide direction S is provided with a horizontal recess 53b that is recessed toward the inside of the cover body 50.

Next, the detection unit 60 housed in the housing 21 will be described. As shown in FIG. 3, the detection unit 60 has a shape extending in the sliding direction S. One end of the detection unit 60 is fixed to the cover body 50 by a screw (not shown), and the other end of the detection unit 60 is screwed into the boss portion 54 of the cover body 50 that penetrates the detection unit 60. It is fixed to the cover body 50.

As shown in FIG. 3, the detection unit 60 includes a substrate 61 whose length extends in the slide direction S. The detection unit 60 includes a plurality of LED lamps L arranged in a region from substantially the center to one end in the longitudinal direction on one surface of the substrate 61. The plurality of LED lamps L are arranged in a matrix of 7 rows × 7 columns. Further, the detection unit 60 includes a power switch 62 on one surface of the substrate 61 on the other end side in the longitudinal direction.

Then, as shown in FIG. 7, each LED lamp L of the detection unit 60 is arranged so as to correspond to the through hole 51a of the cover main body 50 separately. Therefore, each LED lamp L can be visually recognized through the through hole 51a. Further, the power switch 62 of the detection unit 60 is inserted into the switch through hole 51b. Therefore, the power switch 62 penetrates the switch through hole 51b and is exposed to the outside of the housing 21, and can be pressed from the outside of the housing 21.

The detection unit 60 includes a cylindrical holding cylinder portion 64 on the other surface of the substrate 61 on the other end side in the longitudinal direction, and the marking portion 65 is held inside the holding cylinder portion 64. The marking unit 65 is a stamp. The detection unit 60 includes a power receiving plug 66 on the other end side in the longitudinal direction.

The base 30 and the cover body 50 having the above configuration are integrally assembled to form the housing 21, and the detection unit 60 is housed between the base 30 and the cover body 50. In the housing 21, the pair of cover long side walls 52 and the pair of cover short side walls 53 of the cover body 50 are formed inside the rectangular frame formed by the pair of long side walls 32 and the pair of short side walls 33 of the base 30. A rectangular frame is included.

As shown in FIG. 8, in the housing 21, the rotating shaft 32a of the base 30 is inserted into the shaft hole 52a of the cover main body 50, and the shaft support portion 59 is formed from the rotating shaft 32a and the shaft hole 52a. .. Further, in the housing 21, the retaining projection 32b of the base 30 is inserted into the retaining hole 52b of the cover body 50. The base portion 30 and the cover main body 50 are configured to be relatively tiltable with the rotation shaft 32a of the shaft support portion 59 as the tilt center. Therefore, the base 30 and the cover body 50 are relatively movable.

As shown in FIG. 7, the urging spring 45 is in contact with the other end side of the detection portion 60 fixed to the cover main body 50 in the longitudinal direction in the housing 21. Each urging spring 45 is interposed between the bottom plate 31 and the other surface of the substrate 61. The urging spring 45 urges the cover body 50 and the base 30 in a direction in which they are separated from each other. On the other hand, the base portion 30 and the cover main body 50 can be tilted so as to approach each other against the urging force of the urging spring 45. The tilt range of the other of the base 30 and the cover body 50 is the dimension of the retaining hole 52b in the longitudinal direction.

As shown in FIG. 6, in the housing 21, a part of the frame portion 56 of each cover long side wall 52 is inserted into the cutout portion 32c of each long side wall 32, and each cutout portion 32c is one of the cover long side walls 52. Closed by the department. Since a part of the frame portion 56 surrounds the gripping recess 55, a part of the gripping recess 55 is inserted inside each notch 32c. Of the second edge 38b of the slide groove 38, the abutting edge 56a of the frame 56 is lined up along the groove 40. Therefore, it can be said that the groove 40 of the slide groove 38 is partitioned by the first edge 38a along the groove 40 and the contact edge 56a. Therefore, it can be said that the slide groove 38 is located between the base portion 30 and the cover main body 50 in the thickness direction D. Then, a tilting allowable space M is partitioned between the first edge 38a along the groove 40 and the contacting edge 56a. The tilt allowable space M will be described later.

The magnet detector 20 includes a level 42 at one end of the housing 21 in the sliding direction S. The level 42 is held by the level holding portion 33b of the base 30, and is exposed from the level recess 53b to the front surface of the cover plate 51. The magnet detector 20 includes a connection port 44 on the other end side of the housing 21 in the slide direction S. The connection port 44 is formed in a rectangular shape by combining the base side recess 33a of the base 30 and the cover side recess 53a of the cover body 50. The power receiving plug 66 of the detection unit 60 is exposed at the connection port 44.

Next, the covering member 22 will be described.
As shown in FIG. 3 or 4, the covering member 22 includes a flat plate-shaped covering main body 23, a pair of mounting pieces 24 extending from both end edges in the longitudinal direction of the covering main body 23, and each other from each mounting piece 24. It has a hooking protrusion 25 that protrudes toward the mounting piece 24 of the above.

The thickness of the covering main body 23 in the thickness direction D of the housing 21 is defined as the thickness. Further, the dimension of the accommodating recess 35 along the thickness direction D is defined as the depth. The thickness of the covering body 23 is the same as or slightly smaller than the depth of the accommodating recess 35. The covering main body 23 is provided with an inner surface 23b on a surface facing the sliding contact surface 34 of the base portion 30 or an inner bottom surface 35a of the accommodating recess 35, and an outer surface 23a on the opposite surface of the inner surface 23b in the thickness direction of the covering main body 23. The covering main body 23 includes a positioning protrusion 23c on the inner surface 23b. When the covering member 22 is positioned at the first position P1 described later, the positioning projection 23c hooks on the positioning recess 34a of the base portion 30 to position the covering member 22 at the first position P1.

Of the pair of long edges of the covering main body 23, the portion where the covering main body 23 and each mounting piece 24 intersect with each other near one long edge has a shape of being recessed over the covering main body 23 and the mounting piece 24. The covering member 22 is provided with a finger hook portion 26 in a portion recessed over the covering main body 23 and the housing 21. The finger hook portion 26 is a portion on which a finger is hooked when operating the covering member 22. Further, the covering member 22 includes an operating projecting piece 23d protruding from the central portion of the other long edge of the covering main body 23.

Each hooking protrusion 25 is provided on the tip edge of each mounting piece 24 in the projecting direction from the covering main body 23. Each hooking protrusion 25 is provided over the lateral direction of the covering main body 23, that is, the entire longitudinal direction of the mounting piece 24.

Then, in the covering member 22, each hooking protrusion 25 is inserted into the slide groove 38. Therefore, when the covering member 22 is operated in the sliding direction S, the hooking protrusion 25 is guided along the sliding direction S by the slide groove 38, and the covering member 22 moves in the sliding direction S.

As shown in FIG. 2 or 5, in the magnet detector 20, the covering member 22 is assembled to the housing 21 so as to be slidably movable between the two positions of the first position P1 and the second position P2. The first position P1 is a position that covers the marking portion 65, and is a position away from the shaft support portion 59 in the slide direction S. The second position P2 is a position where the marking portion 65 is exposed and the outer surface 23a of the covering member 22 is located on the same surface as the sliding contact surface 34. Therefore, the groove 40 of the slide groove 38 is located on the first position P1 side in the slide direction S, and the expansion groove 39 is continuous with the groove 40 on the second position P2 side in the slide direction S with respect to the groove 40.

The first position P1 is also a position where the other end of the mounting piece 24 in the longitudinal direction abuts on the other end of the slide groove 38 in the longitudinal direction. In the covering member 22 located at the first position P1, the entire covering main body 23 is located on the sliding contact surface 34. When the covering member 22 is located at the first position P1, the marking portion 65 is located at a position reserved from the sliding contact surface 34 to the inside of the housing 21.

As shown in FIG. 6 or 7, when the covering member 22 is located at the first position P1, each hooking protrusion 25 is for contacting the first end edge 38a of the groove 40 with the cover body 50. Located between the edge 56a, each hooking protrusion 25 is in contact with the first edge 38a and the contact edge 56a. That is, the hooking protrusion 25 is interposed between the first edge 38a and the contacting edge 56a. Therefore, the hooking protrusion 25 abuts on a part of the base 30 facing the thickness direction D and a part of the cover body 50, and this contact restricts the relative movement of the base 30 and the cover body 50. ing. Therefore, when the covering member 22 is located at the first position P1, the covering member 22 regulates the relative movement of the base portion 30 and the cover main body 50. As a result, when the covering member 22 is located at the first position P1, the relative movement between the marking portion 65 and the sliding contact surface 34 is restricted. Therefore, the groove 40 and the hooking protrusion 25 that has entered the groove 40 form a regulation structure that regulates the relative movement of the marking portion 65 and the sliding contact surface 34.

By sliding the covering member 22 at the first position P1 toward one end in the sliding direction S, the covering member 22 can be moved from the first position P1 to the second position P2. As shown in FIG. 5 or 8, the second position P2 is a position where the entire covering main body 23 is accommodated in the accommodating recess 35. The second position P2 of the covering member 22 is also a position where one end of the mounting piece 24 in the longitudinal direction comes into contact with one end of the slide groove 38 in the longitudinal direction.

As shown in FIG. 5, when the covering member 22 is located at the second position P2, the operating projecting piece 23d is inserted into the tilting recess 36. When the covering member 22 is located at the second position P2, the outer surface 23a of the covering main body 23 is located on the same surface as the sliding contact surface 34, as shown in FIG. Further, when the covering member 22 is located at the second position P2, each hooking protrusion 25 enters the expansion groove portion 39 of the slide groove 38 and is in contact with the second end edge 38b of the expansion groove portion 39. The position of the hooking protrusion 25 when the covering member 22 is located at the second position P2 is more sliding than the position of the hooking protrusion 25 when the covering member 22 is located at the first position P1. It is a position away from the surface 34.

As described above, the expansion groove 39 is expanded in the direction away from the sliding contact surface 34, the dimension in the thickness direction D is made larger than the groove 40 in the expansion groove 39, and the accommodating recess 35 is recessed from the sliding contact surface 34. ing. As a result, by inserting the hooking protrusion 25 into the expansion groove 39, the covering member 22 can be moved to a position where the covering member 22 is stored in the accommodating recess 35, and the entire covering member 22 is reserved from the sliding contact surface 34. The outer surface 23a of the covering main body 23 can be positioned on the same surface as the sliding contact surface 34.

Further, unlike the groove portion 40, the end edge of the cover main body 50 is not arranged along the expansion groove portion 39, and the cover main body 50 is not in contact with the hooking protrusion 25 arranged in the expansion groove portion 39. .. Therefore, when the covering member 22 is located at the second position P2, the hooking protrusion 25 does not enter the groove 40 and breaks, and the hooking protrusion 25 moves the base portion 30 and the cover body 50 relative to each other. Is not regulated. That is, when the covering member 22 is located at the second position P2, the base portion 30 and the cover main body 50 can be tilted around the shaft support portion 59. Then, when the covering member 22 is located at the second position P2, the base portion 30 and the cover body 50 move relatively so as to narrow the groove width of the slide groove 38 by the hooking protrusion 25 entering the expansion groove portion 39. It will be possible. Therefore, the groove portion 40 constitutes the tilting allowable space M.

When the operating projectile 23d is pressed while the covering member 22 is located at the second position P2, the operating projectile 23d uses the recess of the tilting recess 36 as shown by the alternate long and short dash line in FIG. Can be pushed down. Then, the covering member 22 can be tilted, and the edge of the covering main body 23 near the marking portion 65 can be raised above the sliding contact surface 34. Then, if the covering member 22 is pushed toward the first position P1 as it is, the contact between the covering main body 23 and the inner side surface 35b of the accommodating recess 35 is avoided, and the covering main body 23 can ride on the sliding contact surface 34. it can. Further, by pushing the covering member 22 toward the first position P1, the covering member 22 can be positioned at the first position P1.

Therefore, the covering member 22 can move between the first position P1 that covers the marking portion 65 and the second position P2 that exposes the marking portion 65. Further, each of the pair of hooking protrusions 25 of the covering member 22 comes into contact with the first end edge 38a of the slide groove 38. Due to this contact, the covering member 22 is restricted from coming off the housing 21 along the thickness direction D of the housing 21. Further, the detachment of the covering member 22 in the slide direction S of the housing 21 is restricted by the contact of the hooking protrusion 25 with each end edge of the slide groove 38 in the slide direction S.

Next, how to use the magnet detector 20 will be described together with the action. As shown in FIG. 1, a wiring box 11 is attached to the pillar 17, a wall material 18 is arranged on the opening side of the wiring box 11, and the wiring box 11 is hidden behind the wall material 18. Has been done. Further, as shown in FIG. 2, the covering member 22 is located at the first position P1, and the marking portion 65 is covered by the covering main body 23 of the covering member 22.

First, the user presses the power switch 62 to drive the detection unit 60. Next, the user puts a finger on the finger hook portion 26 with respect to the covering member 22 located at the first position P1 and pushes the covering member 22 toward one end in the slide direction S. The positioning protrusion 23c of the covering member 22 is removed from the positioning recess 34a, and the covering member 22 is directed to one end in the slide direction S.

Then, since the hooking protrusion 25 moves along the groove 40 of the slide groove 38, the covering member 22 slides toward one end in the slide direction S. At this time, the inner surface 23b of the covering main body 23 is in sliding contact with the sliding contact surface 34.

Then, the covering member 22 moves to one end in the slide direction S, and the hooking protrusion 25 comes into contact with one end edge in the slide direction S in the slide groove 38. Here, using the groove width of the expansion groove portion 39, the covering member 22 is pushed toward the accommodating recess 35 until the long edge portion of the hooking protrusion 25 abuts on the second end edge 38b. Then, as shown in FIG. 8, the covering main body 23 enters the accommodating recess 35, and the operating projecting piece 23d enters the tilting recess 36. The outer surface 23a of the covering main body 23 is located on the same surface as the sliding contact surface 34, and the covering member 22 is located at the second position P2. By locating the covering member 22 at the second position P2, the marking portion 65 is exposed from the through hole 37 of the sliding contact surface 34. However, the marking portion 65 is located at a position ahead of the sliding contact surface 34 inside the housing 21, and does not protrude from the sliding contact surface 34.

Then, a finger is inserted into both gripping recesses 55 to sandwich the magnet detector 20, and the permanent magnet 15 of the wiring box 11 is held by the detection unit 60 while the sliding contact surface 34 is in sliding contact with the surface of the wall material 18. Let it be detected. When the permanent magnet 15 is detected by the detection unit 60, the position of the permanent magnet 15 is indicated by the display of the LED lamp L. Although the method of detecting the permanent magnet 15 is not described in detail, when the LED lamp L at the center of the 49 LED lamps L is lit, the permanent magnet 15 is located at a position facing the marking portion 65.

Next, as shown in FIG. 9, the user presses the cover body 50 toward the surface of the wall material 18. Then, the cover body 50 tilts relative to the base 30 with the rotation shaft 32a of the shaft support portion 59 as the tilt center. That is, the base 30 and the cover body 50 move relatively. At this time, the detection portion 60 is pressed toward the base portion 30 together with the cover body 50 against the urging force of the urging spring 45, but the marking portion 65 inserted into the through hole 37 is inside the through hole 37. It is extruded toward the wall material 18. Then, the marking portion 65 provided at a position ahead of the sliding contact surface 34 inside the housing 21 protrudes from the through hole 37 to the outside of the sliding contact surface 34, and is marked on the wall material 18 by the marking portion 65. ..

Next, after the detection and marking of the permanent magnet 15 by the magnet detector 20 is completed, the user separates the magnet detector 20 from the wall material 18 and presses the operation projectile 23d in the magnet detector 20. The operating protrusion 23d is pushed down by using the recess of the tilting recess 36. Then, the edge of the covering main body 23 near the marking portion 65 rises above the sliding contact surface 34, and the hooking protrusion 25 that is in contact with the second edge 38b of the expansion groove 39 also rises, and the hooking protrusion 25 also rises. The tip of the groove rises to the height of the second edge 38b of the groove 40.

When the covering member 22 is pushed toward the first position P1 as it is, the hooking protrusion 25 moves from the expansion groove portion 39 to the groove portion 40 and moves along the groove portion 40, so that the covering member 22 moves in addition to the sliding direction S. Slide to the edge. At this time, the inner surface 23b of the covering main body 23 is in sliding contact with the sliding contact surface 34.

Then, as shown in FIG. 6, the hooking protrusion 25 abuts on the other end edge of the slide direction S in the slide groove 38, and the positioning protrusion 23c of the covering member 22 enters the positioning recess 34a. Then, the marking portion 65 is covered with the covering main body 23, and the covering member 22 is located at the first position P1. When the covering member 22 is located at the first position P1, each hooking protrusion 25 comes into contact with the first edge 38a of the groove 40 and the contacting edge 56a of the frame 56. Therefore, the covering member 22 located at the first position P1 regulates the tilting of the base portion 30 and the cover body 50 in the thickness direction D. Further, the marking portion 65 is located at a position ahead of the sliding contact surface 34 and does not protrude from the sliding contact surface 34.

According to the above embodiment, the following effects can be obtained.
(1) The magnet detector 20 includes a covering member 22 assembled to the housing 21. The covering member 22 is movable between the first position P1 that covers the marking portion 65 and the second position P2 that exposes the marking portion 65. Therefore, when the magnet detector 20 is used, by locating the covering member 22 at the second position P2, the marking portion 65 can be exposed from the sliding contact surface 34 while the covering member 22 is assembled to the housing 21. It is possible to prevent the covering member 22 from being lost.

(2) When the covering member 22 is located at the first position P1, the marking portion 65 is located at a position reserved inside the housing 21 from the sliding contact surface 34. Therefore, since the marking portion 65 is exposed from the sliding contact surface 34, interference between the marking portion 65 and the covering member 22 can be suppressed when the covering member 22 is moved to the second position P2. Further, even if the covering member 22 is positioned at the second position P2, it is possible to prevent the marking portion 65 from coming into contact with the wall material 18, and when the magnet detector 20 is moved along the wall material 18, the marking portion 65 It is possible to prevent the wall material 18 from being soiled. Then, with the covering member 22 positioned at the second position P2, the cover body 50 is pressed toward the surface of the wall material 18 while the sliding contact surface 34 is in contact with the surface of the wall material 18, so that the marking portion 65 Can be projected from the sliding contact surface 34 and marked on the wall material 18.

(3) When the covering member 22 is located at the first position P1, the hooking protrusion 25 of the covering member 22 is for contacting the first end edge 38a of the slide groove 38 with the frame portion 56 provided in the cover body 50. It abuts on the edge 56a. By this contact, the relative movement of the base 30 and the cover body 50 can be regulated, and the movement of the detection unit 60 integrated with the cover body 50 can be regulated. As a result, it is possible to prevent the marking portion 65 from popping out from the sliding contact surface 34.

(4) The base portion 30 and the cover main body 50 are relatively tiltably supported by the shaft support portion 59. Then, the sliding contact surface 34 of the base portion 30 is brought into contact with the wall material 18, and the cover main body 50 is pressed toward the surface of the wall material 18, so that the cover main body 50 tilts relative to the base portion 30 and is in sliding contact. The marking portion 65 located at a position ahead of the surface 34 protrudes from the sliding contact surface 34. Therefore, by pressing the cover body 50 against the wall material 18, the marking portion 65 can be pressed against the sliding contact surface 34, and marking can be easily performed.

(5) The slide groove 38 has an expansion groove portion 39 and a groove portion 40, and when the covering member 22 is located at the first position P1, the hooking protrusion 25 of the covering member 22 is located at the groove portion 40 and is located at the groove portion 40. The first edge 38a located is in contact with the contacting edge 56a of the frame portion 56. By this contact, the relative tilt of the base portion 30 and the cover body 50 can be suppressed, and the marking portion 65 can be prevented from popping out from the sliding contact surface 34.

(6) The slide groove 38 has an expansion groove portion 39 and a groove portion 40, and when the covering member 22 is located at the second position P2, the hooking protrusion 25 of the covering member 22 is located at the expansion groove portion 39 and is located at the expansion groove portion 39. The expanded width of 39 can be used to accommodate the covering member 22 into the accommodating recess 35. As a result, the outer surface 23a of the covering main body 23 and the sliding contact surface 34 can be positioned on the same surface, and the magnet detector 20 can be easily brought into sliding contact with the surface of the wall material 18.

(7) With the slide groove 38, the hooking protrusion 25 of the covering member 22 can be moved in the sliding direction S of the housing 21, and the covering member 22 can be guided to slide and move in the sliding direction S. ..

(8) The covering member 22 includes a finger hook portion 26 that is recessed from both ends of the covering main body 23 in the longitudinal direction to the mounting piece 24. By hooking a finger on the finger hook portion 26, it is easy to push the covering member 22 and slide it.

(9) When the covering member 22 is located at the first position P1, the hooking protrusion 25 of the covering member 22 comes into contact with the first end edge 38a of the slide groove 38 and the contacting edge 56a of the frame portion 56. .. By this contact, the relative movement of the base 30 and the cover body 50 can be regulated, and the movement of the detection unit 60 integrated with the cover body 50 with respect to the base 30 can be regulated. Therefore, it is possible to prevent the connection port 44 from being deformed so as to be closed due to the relative movement of the base portion 30 and the cover body 50, and it is possible to prevent the charging cable connected to the power receiving plug 66 from being damaged.

(10) The level 42 is arranged on the shaft support 59 side of the housing 21. Therefore, when the cover body 50 is pressed against the wall material 18 and the cover body 50 is tilted, the leveling device 42 near the shaft support portion 59 is slightly affected by the tilting, and the leveling device 42 is used for leveling. However, the effect of marking can be slight.

(11) The covering member 22 is provided with a positioning protrusion 23c, and the housing 21 is provided with a positioning recess 34a on the sliding contact surface 34. Therefore, when the covering member 22 is positioned at the first position P1, the positioning projection 23c is hooked on the positioning recess 34a, and the covering member 22 can be positioned at the first position P1. Therefore, it is possible to prevent the covering member 22 located at the first position P1 from being displaced from the first position P1.

(12) The covering member 22 includes an operating projecting piece 23d, and the base portion 30 includes a tilting recess 36 recessed from the sliding contact surface 34. When the covering member 22 located at the second position P2 is moved to the first position P1, the covering member 22 can be raised by pressing the operation projecting piece 23d using the depth of the tilting recess 36. .. Therefore, it is possible to prevent the edge of the covering member 22 from interfering with the inner side surface 35b of the accommodating recess 35, and it is easy to move the covering member 22 toward the first position P1.

The above embodiment may be changed as follows.
○ The operating projectile 23d of the covering member 22 may not be provided, and in this case, the tilting recess 36 of the base 30 may not be provided.

○ The positioning protrusion 23c of the covering main body 23 may not be provided, and in this case, the positioning recess 34a of the sliding contact surface 34 may not be provided.
○ A positioning recess may be provided on the inner surface 23b of the covering main body 23, and a positioning protrusion may be provided on the sliding contact surface 34.

○ The magnet detector 20 does not have to include the level 42.
○ The finger hook 26 of the covering member 22 may not be provided.
○ The slide groove 38 may not be formed so that the groove widths of the expansion groove portion 39 and the groove portion 40 are different from each other, and may have the same wide groove width as the expansion groove portion 39 over the entire slide groove 38. In the embodiment, the groove 40 is partitioned by the first edge 38a and the contact edge 56a of the base 30, but when the entire slide groove 38 has the same groove width as the expansion groove 39, it is for contact. The edge 56a may be omitted.

○ In the housing 21, the shaft support portion 59 may be arranged near the center of the slide direction S so that it can be tilted.
The shaft support portion 59 of the housing 21 may be eliminated, and the base portion 30 and the cover main body 50 may be relatively movable in the thickness direction D as a whole.

○ The dimension of the inner side surface 35b indicating the depth of the accommodating recess 35 in the lateral direction may be larger than the thickness of the covering main body 23. Then, when the covering member 22 is located at the second position P2, the outer surface 23a of the covering main body 23 may be positioned at a position ahead of the sliding contact surface 34 inside the housing 21.

○ In the cover body 50 and the detection unit 60, a through hole is formed at a position facing the marking portion 65 in the thickness direction D, and a finger is inserted into the through hole so that the marking portion 65 protrudes from the sliding contact surface 34. The extruded marking portion 65 and the sliding contact surface 34 may be relatively movable.

○ The covering member 22 may be assembled to the housing 21 so as to be tiltable instead of sliding. For example, a rotating shaft is provided on the inner surface of each mounting piece 24 of the covering member 22, and a shaft hole is provided in each long side wall 32 of the base portion 30, and the rotating shaft is supported in the shaft hole. Then, the covering member 22 may be movable to the first position P1 and the second position P2 with the rotation axis as the rotation center.

○ In the embodiment, the regulation structure is constructed by inserting the hooking protrusion 25 of the covering member 22 into the groove 40, but the regulation structure is not limited to this. For example, a restricting member is movably provided on the long side wall 32 of the base portion 30 or the cover long side wall 52 of the cover body 50, and when the covering member 22 is located at the first position P1, it is moved so as to enter the groove portion 40. Therefore, the relative movement of the marking portion 65 and the sliding contact surface 34 may be restricted.

○ The detected body is a component charged with static electricity, and the detector may be a detector that detects static electricity from the front side of the wall material 18 by the detection unit.
○ The housing 21 may not be composed of two relatively movable members (base 30 and cover body 50), or may be composed of one member of the box-shaped housing.

○ The concealing material may be a floor material or a ceiling board instead of the wall material 18.

S ... slide direction, P1 ... first position, P2 ... second position, 15 ... permanent magnet as a detected object, 18 ... wall material as a concealing material, 20 ... magnet detector as a detector, 21 ... housing , 22 ... Covering member, 25 ... Hooking protrusions constituting the regulation structure, 30 ... Base, 34 ... Sliding contact surface, 35 ... Containment recess, 38 ... Slide groove, 39 ... Expansion groove, 40 ... Regulating structure. Groove, 50 ... Cover body, 59 ... Shaft branch, 60 ... Detection part, 65 ... Marking part.

Claims (6)

It is a detector that detects the object to be detected arranged on the back side of the concealing material of a building from the front side of the concealing material.
A housing having a sliding contact surface along the surface of the concealing material when detecting the object to be detected, and a housing having a sliding contact surface.
A detection unit provided inside the housing and disposed on the back side of the concealing material to detect the detected body,
A marking unit for indicating the position of the detected body detected by the detection unit on the surface of the concealing material, and
A covering member that is assembled to the housing and covers the marking portion is provided.
The covering member has a first position for covering the marking portion, the marking portion is exposed and is located on the same surface as the sliding contact surface, or is separated from the surface of the concealing material from the sliding contact surface. A detector characterized by being movable to a second position. The detector according to claim 1, wherein the covering member is assembled to the housing so as to be slidably movable between the first position and the second position along the surface direction of the sliding contact surface. .. The housing has a slide groove extending in the sliding direction in which the covering member slides, and a housing recess that is recessed from the sliding contact surface at the second position of the covering member and houses the covering member. The slide groove is continuous with the groove portion located on the first position side in the slide direction and the second position side in the slide direction with respect to the groove portion, and is opposite to the sliding contact surface. It is composed of an expansion groove that spreads toward the surface and is wider than the groove.
The covering member includes a hooking protrusion that is inserted into the slide groove.
The second aspect of claim 2, wherein when the covering member is located at the second position, the covering member can be moved to a position where the covering member is housed in the accommodating recess by inserting the hooking protrusion into the expansion groove portion. Detector. The housing has a base portion having the sliding contact surface and the accommodating recess, and a cover main body for accommodating the detection portion together with the base portion, and the slide groove is located between the base portion and the cover main body. However, the base portion and the cover body can be relatively moved along the lateral direction of the slide groove so as to narrow the groove width, and when the covering member is located at the first position, the marking portion. The detector according to claim 3, which has a regulatory structure that regulates relative movement between the surface and the sliding contact surface. In a state where there is no relative movement between the base portion and the cover body, the marking portion is located at a position reserved inside the housing from the sliding contact surface, and the relative movement between the base portion and the cover body is performed. As a result, the marking portion and the sliding contact surface move relatively in the direction intersecting the sliding contact surface, and the marking portion can protrude from the sliding contact surface due to the relative movement, and the covering The detector according to claim 4, wherein when the member is located at the first position, the hooking protrusion enters the groove to form the regulation structure. The housing includes a shaft support portion that pivotally supports the base portion and the cover body so as to relatively move the cover body, and by pressing the cover body toward the surface of the concealing material, the shaft support portion is tilted at the center. The cover body tilts relative to the base portion, and the marking portion provided at a position reserved from the sliding contact surface to the inside of the housing is projected from the sliding contact surface according to claim 5. Described detector.