JP6436392B2 - Bolt, lighting device attached to a wall using the bolt, and method of attaching the lighting device to a wall - Google Patents

Description

  The present invention relates to a bolt, a lighting device attached to a wall using the bolt, and a method of attaching the lighting device to a wall.

  2. Description of the Related Art Conventionally, as an illumination device, a ceiling-embedded illumination device that is housed and fixed in an embedding hole formed in a ceiling is known.

  In such a ceiling-embedded lighting device, the case main body in which the illumination member is accommodated is accommodated in the embedding hole formed in the ceiling, and the flange portion formed in the case main body is brought into contact with the ceiling surface around the embedding hole. In this state, it is embedded and fixed in the ceiling.

  At this time, the case body generally inserts the end of the suspension bolt arranged in the embedding hole into the insertion hole formed in the case body, and attaches the nut to the male screw portion formed at the end of the suspension bolt. By fastening, it is housed and fixed in the embedding hole.

  By the way, there is a case where an existing lighting device is replaced with a new lighting device for reasons such as aging deterioration and energy saving. However, in recent years, since the thinning of the lighting device has been promoted, the replacement work of the lighting device has been promoted. In some cases, the existing lighting device is replaced with a thin lighting device.

  Thus, when replacing a relatively thick existing lighting device with a thin lighting device, the male thread portion of the existing hanging bolt may not be inserted into the insertion hole of the case body, The lower bolts had to be replaced with new ones. If the existing suspension bolt is replaced with a new one, the number of work steps increases and the cost also increases.

  Therefore, in order to solve such a problem, for example, a technique described in Patent Document 1 has been proposed.

  In Patent Document 1, an existing hanging bolt is fastened to one end of an extension nut and an extension bolt is fastened to the other end to attach a new lighting device without removing the existing hanging bolt. I have to.

Utility Model Registration No. 3153912

  However, in the above prior art, when installing a new lighting device, it is necessary to fasten the existing suspension bolt to the extension nut and fasten the extension bolt to the extension nut and then fasten the tip of the extension bolt with the nut. There is.

  As described above, in the above-described prior art, it is not necessary to replace the existing hanging bolt with a new one, but it takes time to attach the lighting device.

  Then, an object of this invention is to obtain the volt | bolt which can simplify a work process more, the illuminating device attached to a wall part using the said volt | bolt, and the attachment method to the wall part of an illuminating device.

A bolt according to the present invention includes a head having a surface formed on one side and a seating surface on the other side, and a shaft extending from the seating surface of the head to the other side. The shaft portion is formed with a cylindrical female screw portion having a tip opened to the other side and a thread groove formed on the inner periphery. Then, on the surface side of the head, handle portion which can be pinched by fingers is provided, on the knob portion is engaging portion is provided capable of engaging the fastener The head part and the knob part are formed in a plate shape, and the thickness direction of the knob part intersects the thickness direction of the head part .

Moreover, the illuminating device concerning this invention is provided with the illuminating member which has a light source, the case holding the said illuminating member, and the volt | bolt used when fixing the said case. In addition, the case has a space portion having an opening portion, an insertion hole through which the space portion communicates with the outside and through which the bolt is inserted, and is formed in an embedded space formed in the wall portion. A case main body is provided. Further, the case includes a flange portion that is formed on the opening side of the case main body and contacts the surface of the wall portion in a state where the case main body is accommodated in the embedded space. On the other hand, the bolt has a surface formed on one side and a seating surface on the other side, a head disposed in the space, and a head extending from the seating surface of the head to the other side. Includes a shaft portion that is inserted into the insertion hole from the space portion side. In addition, the shaft portion has a cylindrical end that is open to the other side and has a thread groove formed on the inner periphery thereof, and can be fastened to a male screw portion of an existing bolt disposed in the embedded space. A female screw portion is formed. Then, on the surface side of the head, handle portion which can be pinched by fingers is provided, on the knob portion is engaging portion is provided capable of engaging the fastener The head part and the knob part are formed in a plate shape, and the thickness direction of the knob part intersects the thickness direction of the head part .

  Moreover, the attachment method to the wall part of the illuminating device concerning this invention is an attachment method to the wall part of an illuminating device provided with the illumination member which has a light source, and the case holding the said illumination member.

  And the attachment method to the wall part of an illuminating device is equipped with the positioning process, the volt | bolt insertion process, the volt | bolt fastening process, and the illuminating member holding process.

  In the alignment step, the case main body of the case is accommodated in the embedded space formed in the wall portion with the opening of the space portion formed in the case main body facing the surface side of the wall portion. . And the flange part formed in the said opening part side of the said case main body is made to contact | abut to the surface of the said wall part. And in this state, it is the process of aligning the external thread part of the existing bolt arrange | positioned in the said embedding space, and the insertion hole formed in the said case main body.

The bolt insertion step includes a plate-shaped head having a surface formed on one side and a seating surface on the other side, and a shaft extending from the seating surface of the head to the other side. In this step, the shaft portion of the bolt is introduced into the space portion from the opening side and is inserted into the insertion hole.

  The bolt fastening step is a step of fastening a cylindrical female screw portion formed on the shaft portion, having a tip opened to the other side and having a screw groove formed on the inner periphery thereof, to the male screw portion of the existing bolt. is there.

  The lighting member holding step is a step of storing and holding the lighting member in the space.

  The bolt fastening step includes a first bolt fastening step or a second bolt fastening step.

The first bolt fastening step is a plate-like knob portion provided on the front surface side of the head, and the finger is pinched with a knob portion whose thickness direction intersects the thickness direction of the head. This is a step of fastening the female screw portion to the male screw portion of the existing bolt by rotating the bolt. On the other hand, in the second bolt fastening step, the female screw portion is turned into the male screw portion of the existing bolt by engaging the fastener with the engaging portion provided in the knob portion and rotating the bolt. It is the process of fastening.

  ADVANTAGE OF THE INVENTION According to this invention, the volt | bolt which can simplify a work process more, the illuminating device attached to a wall part using the said volt | bolt, and the attachment method to the wall part of an illuminating device can be obtained.

It is a figure which shows the volt | bolt concerning one Embodiment of this invention, Comprising: (a) is a perspective view, (b) is a front view. It is a side view which shows the volt | bolt concerning one Embodiment of this invention, and the existing volt | bolt fastened with the said volt | bolt. It is a perspective view which shows the state by which the illuminating device is embedded and fixed to the ceiling. It is sectional drawing which shows the state by which the existing illuminating device is embedded and fixed to the ceiling. It is a figure which shows the state which accommodated the case of the illuminating device concerning one Embodiment of this invention in the existing embedded space, Comprising: (a) is sectional drawing, (b) is the perspective view seen from the back side. It is a figure which shows the state by which the illuminating device concerning one Embodiment of this invention is embedded and fixed to the ceiling, Comprising: (a) is sectional drawing, (b) is the perspective view seen from the back surface side. It is a perspective view which shows the state which aligned the penetration hole formed in the case main body of the illuminating device concerning one Embodiment of this invention, and the external thread part of the existing volt | bolt arrange | positioned in embedding space. It is sectional drawing which shows the state which aligned the penetration hole formed in the case main body of the illuminating device concerning one Embodiment of this invention, and the external thread part of the existing volt | bolt arrange | positioned in embedding space. It is a perspective view which shows the state which pinched the knob part of the volt | bolt of the illuminating device concerning one Embodiment of this invention with a finger | toe, and fastened the internal thread part to the external thread part of the existing volt | bolt. It is sectional drawing which shows the state which pinched the knob part of the volt | bolt of the illuminating device concerning one Embodiment of this invention with a finger | toe, and fastened the internal thread part to the external thread part of the existing bolt. It is a perspective view which shows the state which made the fastener engage with the engaging part provided in the knob part concerning one Embodiment of this invention, and fastened the internal thread part to the external thread part of the existing volt | bolt. It is sectional drawing which shows the state which made the fastener engage with the engaging part provided in the knob part concerning one Embodiment of this invention, and fastened the internal thread part to the external thread part of the existing volt | bolt.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following, an illuminating device (ceiling-embedded illuminating device) attached in a state of being embedded in an embedding hole formed in a ceiling as a wall portion will be exemplified.

  First, the configuration of the bolt 40 will be described.

  As shown in FIG. 1A, the bolt 40 according to the present embodiment includes a head portion 41 and a shaft portion 42. The bolt 40 can be formed of a metal such as brass.

  In the present embodiment, the head portion 41 is formed in a disc shape (plate shape), and one side (one side) of the disc-shaped head portion 41 in the thickness direction is a flat surface 41a. Yes. Further, the other side (the other side) of the disc-shaped head portion 41 in the thickness direction is a flat seat surface 41b. Note that the shape of the head 41 is not limited to a plate shape such as a disk shape, and may be various shapes.

  The shaft portion 42 has a columnar shape having a smaller diameter than the head portion 41, and extends from the seating surface 41 b of the head portion 41 toward the other side. In the present embodiment, the head portion 41 and the shaft portion 42 are formed to be concentric.

  Further, in the present embodiment, a female screw portion 43 is provided on the shaft portion 42. The female screw portion 43 has a cylindrical shape in which an opening 43 b that opens to the other side is formed at the tip 43 a, and a screw groove 43 c is formed on the inner periphery of the cylindrical female screw portion 43. Then, from the opening 43b of the cylindrical female screw portion 43, for example, a male screw portion of a mating bolt such as a male screw portion 15b formed at a tip 15a of an existing bolt 15 described later is inserted (see FIG. 2). ).

  In the present embodiment, the screw groove 43 c of the female screw portion 43 is formed continuously from the tip 42 a of the shaft portion 42 to the root portion 42 b side, and more than half of the other side of the shaft portion 42 is connected to the female screw portion 43. It has become. That is, the shaft portion 42 is formed by the columnar root portion 42b and the cylindrical female screw portion 43 provided continuously from the tip 42a to the other side of the root portion 42b. In the present embodiment, the axial length of the female screw portion 43 is about 100 mm. In addition, the range in which the internal thread part 43 (screw groove 43c) in the axial part 42 is formed can be set suitably.

  On the other hand, a knob portion 44 that can be pinched with the finger 61 of the operator 60 is provided on the surface 41a side of the head 41 (see FIGS. 9 and 10).

  The knob portion 44 has a plate shape, and is provided on the head 41 in a state where the plate-like knob portion 44 protrudes from the surface 41a to one side. In the present embodiment, the plate-like knob portion 44 protrudes so as to be orthogonal to the surface 41 a of the head 41. Therefore, the plate-like knob portion 44 is provided on the head 41 so that the thickness direction of the knob portion 44 is orthogonal to (intersects) the thickness direction of the plate-like head 41.

  Further, as shown in FIG. 2, the knob portion 44 is formed in a mountain shape that becomes narrower as the distance from the head 41 in a side view of the bolt 40 (as viewed from the thickness direction of the knob portion 44). Yes. As described above, in the present embodiment, the knob portion 44 is formed in a taper shape in which the base portion 44a side is wide and the tip end 44b side is narrow.

  Further, the knob portion 44 is formed so that the entire knob portion 44 overlaps the head portion 41 when the bolt 40 is viewed from the front (when viewed from the axial direction of the shaft portion 42). That is, in this embodiment, as shown in FIG. 1B, the area defined by the outline of the head 41 in the front view of the bolt 40 (the circumference in FIG. 1B and the area inside the area). The area of the knob portion 44 (a rectangular area in the circle in FIG. 1B) exists only inside. In other words, the knob portion 44 is formed so as not to protrude from the head 41 in the front view of the bolt 40.

  An engaging groove (engaging portion) 45 that opens to one side is formed at the center of the tip 44b of the knob portion 44, and a fastener such as a minus screwdriver 70 is inserted into the engaging groove 45. (Engaged).

  The bolt 40 having such a configuration can be used, for example, when the case main body of the lighting device is fixed in a state of being accommodated in an embedding hole formed in a wall portion of a building.

  Hereinafter, the existing lighting device 20 embedded and fixed in the embedded space 14 of the ceiling (wall) 10 and the embedded lighting device 20 embedded and fixed in the embedded space 14 in which the existing lighting device 20 is embedded are embedded and fixed. Two lighting devices of the new lighting device 30 will be described as an example.

  First, the structure of the existing lighting device 20 and the structure for attaching the existing lighting device 20 to the ceiling 10 will be described.

  The existing lighting device 20 includes a case 21 made of, for example, a metal such as iron, and the lighting member 26 is accommodated and held in the case 21.

  The case 21 includes a case main body 22, and the case main body 22 is formed in a box shape having one end opened by a back wall 23 and a side wall 24 erected from the periphery of the back wall 23.

  The case body 22 is formed with a space 22b having an opening 22a at one end, and the illumination member 26 is accommodated and held in the space 22b. In the present embodiment, the case main body 22 formed in a rectangular parallelepiped shape is illustrated, but the shape of the case main body is not limited to this and can be various shapes.

  Further, a flange portion 25 is formed to extend outward at the opening 22a side of the case body 22, that is, at the tip of the side wall 24 on the opening 22b side. Further, an insertion hole 23 a is formed in the center of the back wall 23 so as to penetrate the back wall 23 in the thickness direction. The insertion hole 23a may be a round hole or a long hole.

  On the other hand, the ceiling 10 has an embedded space 14 in which an opening 14 a is formed on the indoor side, and the case main body 22 is accommodated in the embedded space 14.

  Specifically, as shown in FIG. 4, the ceiling 10 includes a base 11 and a ceiling wall 12 arranged so as to be separated from the base 11, and the base 10 is interposed between the base 11 and the ceiling wall 12. Is formed with a ceiling space 13 in which wiring and the like can be arranged.

  The opening 12a corresponding to the width and length of the case body 22 is formed in the ceiling wall 12 to form the embedded space 14 having the opening 14a and accommodating the case body 22 of the case 21. doing. When the case main body 22 is accommodated in the embedded space 14, the flange portion 25 comes into contact with the wall surface (surface of the wall portion) 12 a of the ceiling wall 12.

  It is also possible to form an embedded space in the ceiling wall where the ceiling space is not formed.

  Further, a bolt is fixed to the base 11 so as to protrude downward, and this bolt is an existing bolt 15 having a male screw portion 15b.

  In the present embodiment, the existing bolt 15 is a case where the tip 15a passes through the insertion hole 23a in a state where the case body 22 is accommodated in the embedded space 14 and the flange portion 25 is in contact with the wall surface 12a of the ceiling wall 12. The base 11 is provided so as to protrude into the space 22 b of the main body 22.

  The case body 22 (case 21) is housed and fixed in the embedded space 14 formed in the ceiling 10 by fastening the nut 50 to the tip 15a protruding into the space 22b of the case body 22. A reinforcing plate 27 that suppresses deformation of the case body 22 is provided around the insertion hole 23 a of the case body 22. In this embodiment, a substantially U-shaped reinforcing plate 27 is attached to the back wall 23 in the space 22b. However, the shape of the reinforcing plate is not limited to this. Moreover, the site | part which attaches a reinforcement board can also be set suitably.

  As described above, the case 21 is formed with the space 22b having the opening 22a and the insertion hole 23a through which the existing bolt 15 is inserted through the space 22b and the outside. The case body 22 is provided in the embedded space 14.

  The case 21 includes a flange portion 25 that is formed on the opening 22a side of the case main body 22 and abuts against the surface 12b of the ceiling wall 12 in a state where the case main body 22 is accommodated in the embedded space 14.

  The lighting member 26 is housed and held in the space 22 b of the case body 22 in a state where the case body 22 (case 21) is housed and fixed in the buried space 14 formed in the ceiling 10. A fixed existing lighting device 20 is formed.

  Various types of illumination members can be used as the illumination member 26. In the present embodiment, the illumination member 26 includes a light source 26a and a reflector 26b that reflects light emitted from the light source 26a. .

  Also, various types of light sources can be used as the light source 26a. In the present embodiment, a straight tube lamp is illustrated as shown in FIG. Moreover, as a straight tube | pipe type lamp, what emits white light with high brightness | luminance using LED which emits blue light, and the fluorescent substance which emits yellow fluorescence can be used, for example.

  The light source 26a is attached to a socket 26c fixed to the case body 22 via a bracket 26d.

  Next, a configuration of the lighting device 30 that is embedded and fixed in the embedded space 14 instead of the existing lighting device 20 and a structure for attaching the lighting device 30 to the ceiling 10 will be described.

  Similarly to the existing lighting device 20, the lighting device 30 also includes a case 31 formed of a metal such as iron, and the lighting member 36 is accommodated and held in the case 31.

  The case 31 is formed with a space 32b having an opening 32a and an insertion hole 33a through which the bolt 40 is inserted through the space 32b and the outside. A case main body 32 accommodated in the space 14 is provided.

  The case main body 32 is formed in a box shape having one end opened by a back wall 33 and a side wall 34 erected from the periphery of the back wall 33. The width and length of the case main body 32 are substantially the same as those of the case main body 22 of the existing lighting device 20 described above, but the thickness is thinner than that of the case main body 22. The shape of the case main body is not limited to this, and various shapes can be used as long as the shape can be accommodated in the embedded space 14 from which the existing lighting device 20 is removed.

  Further, an insertion hole 33 a is formed in the center portion of the back wall 33 so as to penetrate the back wall 33 in the thickness direction. The insertion hole 33a may be a round hole or a long hole.

  A reinforcing plate 37 that suppresses deformation of the case body 32 is provided around the insertion hole 33 a of the case body 32. In this embodiment, a substantially U-shaped reinforcing plate 37 is attached to the back wall 33 in the space 32b. However, the shape of the reinforcing plate is not limited to this. Moreover, the site | part which attaches a reinforcement board can also be set suitably.

  The case 31 includes a flange portion 35 that is formed on the opening 32 a side of the case main body 32 and contacts the surface 12 b of the ceiling wall 12 in a state where the case main body 32 is accommodated in the embedded space 14. The flange portion 35 is formed to extend outward at the opening 32 a side of the case body 32, that is, at the tip of the side wall 34 on the opening portion 32 b side.

  Various kinds of illumination members can be used as the illumination member 36. In this embodiment, the light source 36a and the reflector 36b that reflects the light emitted from the light source 36a are illustrated.

  Various types of light sources can be used as the light source 36a. In the present embodiment, a straight tube lamp is illustrated as shown in FIG. Moreover, as a straight tube | pipe type lamp, what emits white light with high brightness | luminance using LED which emits blue light, and the fluorescent substance which emits yellow fluorescence can be used, for example.

  The light source 36a is attached to a socket 36c fixed to the case body 32 via a bracket 36d.

  As described above, the thickness of the case main body 32 of the lighting device 30 is thinner than the thickness of the case main body 22. Therefore, even if the case main body 32 (case 31) is accommodated in the embedded space 14 formed in the ceiling 10, the existing bolt 15 is not inserted into the insertion hole 33a of the back wall 33 (see FIG. 5). That is, a gap D is formed between the back wall 33 and the tip 15 a of the existing bolt 15.

  Therefore, in this embodiment, the case main body 32 of the lighting device 30 is accommodated and fixed in the embedded space 14 by fastening the bolt 40 described above to the existing bolt 15.

  Specifically, the bolt 40 is disposed in the case main body 32 in a state where the head portion 41 is disposed in the space portion 32b and the shaft portion 42 is inserted through the insertion hole 33a. A cylindrical female screw portion 43 formed on the shaft portion 42 is fastened to the male screw portion 15 b of the existing bolt 15. At this time, a fastening portion 80 of the female screw portion 43 and the male screw portion 15b (a portion inserted into the cylinder of the female screw portion 43 in the male screw portion 15b) 80 is located outside the case main body 32 in the embedded space 14. Will be located.

  In the present embodiment, such a configuration allows the case main body 32 of the lighting device 30 to be housed and fixed in the embedded space 14. Therefore, the bolt 40 used for attaching the lighting device 30 to the ceiling (wall portion) 10 is not only a function of the above-described conventional extension nut and extension bolt, but also a case fixing nut fastened to the extension bolt. It also has functions.

  The lighting device 30 embedded and fixed in the ceiling 10 is formed by housing and holding the lighting member 36 in the space portion 32 b of the case main body 32.

  In this embodiment, except that the thickness of the case main body 32 is thinner than the thickness of the case main body 22 and the bolt 40 inserted through the insertion hole 33a is fastened to the existing bolt 15. Basically, the illumination device 30 having the same configuration as the existing illumination device 20 is illustrated.

  However, the light source 36a of the illuminating device 30 is changed to a light source of a different type from the light source 26a used in the existing illuminating device 20, or the shape of the reflecting plate 36b is changed from the shape of the reflecting plate 26b. It is possible to perform appropriately.

  In the present embodiment, the female screw portion 43 of the bolt 40 is continuously formed from the tip 42a of the shaft portion 42 to the root portion 42b side, and the thickness of the lighting device that can be attached using the bolt 40. Has a certain width. Therefore, even if it is an illuminating device thicker than the illuminating device 30, or it is a thin illuminating device, if the difference in thickness is within a predetermined range, it can be attached using this bolt 40. .

  Next, an example of a method of replacing the existing lighting device 20 embedded and fixed in the ceiling 10 with the existing bolt 15 with a new lighting device 30 that is thinned without removing the existing bolt 15 will be described.

  That is, an example of a method for attaching the thin lighting device 30 to the ceiling (wall) 10 will be described.

  First, the case body 32 of the case 31 is formed on the ceiling (wall portion) 10 with the opening portion 32a of the space portion 32b facing downward (the wall surface 12a side of the ceiling wall 12: the surface side of the wall portion). In the embedded space 14.

  Then, the flange portion 35 formed on the opening 32 a side of the case main body 32 is brought into contact with the wall surface (wall surface) 12 a of the ceiling wall 12 while the case main body 32 is accommodated in the embedded space 14.

  That is, while the case main body 32 is accommodated in the embedded space 14, the flange portion 35 formed on the opening 32a side of the case main body 32 is brought into contact with the wall surface (surface of the wall portion) 12a of the ceiling wall 12. (See FIGS. 5, 7 and 8).

  In this state, the existing bolt 15 disposed in the embedded space 14 and the insertion hole 33a formed in the case main body 32 are aligned (alignment process). If no gap is formed between the side wall 34 of the case main body 32 and the ceiling wall 12, the case main body 32 is accommodated in the embedded space 14 and the flange portion 35 is brought into contact with the wall surface 12a. Combinations can also be made.

  Next, the shaft portion 42 of the bolt 40 is introduced into the space portion 32b from the opening 32a side, and the shaft portion 42 is inserted from the tip 42a into the insertion hole 33a (bolt insertion step).

  Next, in a state where the shaft portion 42 of the bolt 40 is inserted through the insertion hole 33a, the cylindrical female screw portion 43 is fastened to the male screw portion 15b of the existing bolt 15 (bolt fastening step).

  Specifically, as shown in FIGS. 9 and 10, the female screw portion 43 is provided by turning the bolt 40 by pinching the knob portion 44 provided on the surface 41 a side of the head 41 with the finger 61. Fastening to the male threaded portion 15a of the bolt 15 (first bolt fastening step). In the present embodiment, since the knob portion 44 that is easy to pinch with the finger 61 is formed on the bolt 40, even if the female screw portion 43 is fastened to the male screw portion 15 a of the existing bolt 15 with the finger 61 of the operator 60. It is possible to obtain a tightening torque necessary for fastening the bolt 40. Therefore, the fastening of the bolt 40 can be completed only by the first bolt fastening process.

  However, since there is a limit to the tightening torque that can be obtained by fastening with the finger 61, when it is desired to fasten the bolt 40 with a stronger tightening torque, the following second bolt fastening process can be performed. Alternatively, the bolt 40 can be temporarily fixed to the existing bolt 15 with the finger 61 of the worker 60, and then the second bolt fastening process can be performed.

  Specifically, as shown in FIGS. 11 and 12, after the female screw portion 43 and the male screw portion 15a are in a temporarily fastened state, the engagement groove (engagement portion) 45 provided in the knob portion 44 is negatively provided. A screwdriver (fastener) 70 is inserted (engaged) and the bolt 40 is rotated. By doing so, the female screw portion 43 is fastened to the male screw portion 15a of the existing bolt 15 (second bolt fastening step).

  In addition, it is possible to perform only the second bolt fastening step without performing the first bolt fastening step.

  In this bolt fastening process, the female screw portion 43 is fastened to the male screw portion 15 b of the existing bolt 15 located outside the case main body 32 in the embedded space 14.

  In this way, by fastening the female screw portion 43 to the male screw portion 15 a of the existing bolt 15, after the case main body 32 is housed and fixed in the embedded space 14, the lighting member 36 is housed in the space portion 32 b. Hold (illumination member holding step). In addition, after attaching the bracket 36d of the illumination member 36 to the case body 32 in advance, the case body 32 is accommodated and fixed in the embedded space 14, and then the illumination member 36 other than the bracket 36d is accommodated in the space portion 32b. You may make it hold.

  Thus, the new thinned illumination device 30 is attached in a state of being embedded in the ceiling (wall portion) 10 (see FIG. 6).

  As described above, the bolt 40 of this embodiment includes the head 41 having the surface 41a formed on one side and the seating surface 41b formed on the other side, and the seating surface 41b of the head 41 on the other side. An extending shaft portion 42. The shaft portion 42 is formed with a cylindrical female screw portion 43 having a distal end 43a opened to the other side and a thread groove formed on the inner periphery. A knob portion 44 that can be pinched with a finger 61 is provided on the front surface 41 a side of the head 41, and a minus driver (fastener) 70 can be engaged with the knob portion 44. An engagement groove portion (engagement portion) 45 is provided.

  In this way, with a simpler configuration, the bolt 40 can have not only the functions of the extension nut and the extension bolt but also the function of a case fixing nut fastened to the extension bolt.

  And by using such a volt | bolt 40, an operation process can be simplified more now.

  In the present embodiment, the head portion 41 and the knob portion 44 are formed in a plate shape, and the thickness direction of the knob portion 44 intersects the thickness direction of the head portion 41. If it carries out like this, it will become easy to pinch the knob part 44 with the finger | toe 61, and the fastening operation | work using the volt | bolt 40 can be performed more easily.

  Further, in the present embodiment, the knob portion 44 is formed in a mountain shape that becomes narrower as the distance from the head 41 in a state viewed from the thickness direction of the knob portion 44. By doing so, the region pinched by the finger 61 of the knob portion 44 can be made larger on the root portion 44a side than on the tip end 44b side. As a result, since the load from the finger 61 can be more efficiently transmitted to the vicinity of the head 41 when the knob part 44 is pinched with the finger 61, the bolt 40 can be more easily transmitted with the finger 61. It becomes easy to rotate. Moreover, since the front end 44b side becomes narrower, it is possible to suppress the front end 44b side from being deformed as compared with the case where a rectangular knob portion is used.

  In the present embodiment, the engaging portion is the engaging groove portion 45 formed at the tip of the knob portion 44. In this way, it is possible to insert (engage) coins or the like as a fastener into the engaging groove portion 45. For example, when the bolt 40 is loosened and retightened, a minus driver 70 or the like is prepared. It becomes possible to perform the fastening work without doing. As described above, by adopting a configuration in which a member such as a small change can also be used as a fastener, it is possible to save labor at the time of fastening work and to perform the fastening work more easily.

  Further, in the present embodiment, the entire knob portion 44 overlaps the head portion 41 when viewed from the axial direction of the shaft portion 42. By carrying out like this, it can suppress that the volt | bolt 40 will enlarge.

  Moreover, the illuminating device 30 of this embodiment is provided with the illumination member 26 which has the light source 26a, the case 31 holding the illumination member 26, and the volt | bolt 40 used when fixing the case 31. FIG.

  The case 31 has a space 32b having an opening 32a and an insertion hole 33a through which the bolt 40 is inserted through the space 32b and the outside. A case main body 32 accommodated in the formed embedded space 14 is provided.

  Further, the case 31 is formed on the side of the opening 32 a of the case main body 32, and has a flange portion 35 that contacts the wall surface (wall surface) 12 a of the ceiling wall 12 in a state where the case main body 32 is accommodated in the embedded space 14. I have.

  On the other hand, the bolt 40 has a surface 41a formed on one side and a seating surface 41b formed on the other side, and a head 41 disposed in the space 32b and the seating surface 41b of the head 41 on the other side. The shaft portion 42 is provided so as to extend and the tip 42a is inserted into the insertion hole 33a from the space portion 32b side.

  The shaft portion 42 has a tip 43a that opens to the other side and is formed with a screw groove 43c on the inner periphery, and can be fastened to the male screw portion 15a of the existing bolt 15 disposed in the embedded space 14. A cylindrical female screw portion 43 is formed.

  A knob portion 44 that can be pinched with a finger 61 is provided on the front surface 41 a side of the head 41, and a minus driver (fastener) 70 can be engaged with the knob portion 44. An engagement groove portion (engagement portion) 45 is provided.

  If the configuration of the lighting device 30 is such a configuration, the case main body 32 can be embedded and fixed in the existing embedded space 14 without removing the existing bolt 15 even when the lighting device 30 is thinned.

  Moreover, the attachment method to the ceiling (wall part) 10 of the illuminating device 30 of this embodiment is the ceiling (wall part) of the illuminating device 30 provided with the illumination member 26 which has the light source 26a, and the case 31 holding the illumination member 26. FIG. 10 is a mounting method.

  And the attachment method to the ceiling (wall part) 10 of this illuminating device 30 is equipped with the alignment process, the bolt insertion process, the bolt fastening process, and the illumination member holding process.

  Here, the alignment step is a step performed as follows.

  First, the case main body 32 of the case 31 is placed in a state where the opening 32a of the space 32b formed in the case main body 32 faces downward (the wall surface 12a side of the ceiling wall 12: the surface side of the wall portion). It is accommodated in the embedded space 14 formed in the (wall portion) 10.

  Then, the flange portion 35 formed on the opening 32 a side of the case main body 32 is brought into contact with the wall surface (wall surface) 12 a of the ceiling wall 12 while the case main body 32 is accommodated in the embedded space 14.

  In this state, the existing bolt 15 disposed in the embedded space 14 and the insertion hole 33a formed in the case main body 32 are aligned.

  Further, in the bolt insertion process, the shaft portion 42 extending from the seating surface 41b of the head 41 having the surface 41a formed on one side and the seating surface 41b formed on the other side is connected to the opening 32a side. Is introduced into the space 32b through the insertion hole 33a.

  Further, in the bolt fastening step, a cylindrical female screw portion 43 formed on the shaft portion 42, having the tip 43 a opened to the other side and having a screw groove 43 c formed on the inner periphery is replaced with a male screw portion 15 b of the existing bolt 15. It is the process of fastening to.

  The lighting member holding step is a step of storing and holding the lighting member 26 in the space portion 32b.

  The bolt fastening process includes a first bolt fastening process or a second bolt fastening process.

  In the first bolt fastening step, the female screw portion 43 is turned to the male screw portion 15b of the existing bolt 15 by pinching the knob portion 44 provided on the surface 41a side of the head 41 with the finger 61 and rotating the bolt 40. It is the process of fastening to.

  In the second bolt fastening step, the screw 40 is rotated by engaging a minus screwdriver (fastener) 70 with an engagement groove (engagement part) 45 provided in the knob part 44, thereby rotating the female screw part 43. Is fastened to the male screw portion 15b of the existing bolt 15.

  If the lighting device 30 is attached to the ceiling (wall portion) 10 by such a method, the work process can be further simplified. As a result, it is possible to more easily perform the work of replacing the existing lighting device 20 embedded and fixed in the ceiling 10 with the existing bolt 15 with the new thinning lighting device 30 without removing the existing bolt 15. .

  Moreover, since the existing parts are used more and the bolt 40 having a simpler configuration is used, the cost can be reduced. In addition, the time required for the replacement work can be shortened, and the cost can be reduced in this respect.

  Further, since the extension work of the existing bolt and the installation work of the case main body 32 are completed simply by fastening the bolt 40 to the existing bolt 15, the installation workability can be further improved.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

  For example, in the above-described embodiment, the ceiling-embedded lighting device that is attached in a state of being embedded in the embedded hole formed in the ceiling is illustrated, but the lighting device is embedded in the embedded hole formed in the side wall of the building. Is also possible.

  Also, the case, light source, and other detailed specifications (shape, size, layout, etc.) can be changed as appropriate.

10 Ceiling (wall)
DESCRIPTION OF SYMBOLS 14 Embedded space 15 Existing bolt 15b Male thread part 30 Illumination device 31 Case 32 Case main body 32a Opening part 32b Space part 33a Insertion hole 35 Flange part 36 Illumination member 36a Light source 40 Bolt 41 Head part 41a Surface 41b Seat surface 42 Shaft part 42a Tip 43 female threaded portion 43a tip 43b opening 44 knob 44b tip 45 engagement groove (engagement portion)
61 fingers 70 slotted screwdriver (fastener)
80 Fastening part

Claims (11)

A head having a surface formed on one side and a seating surface formed on the other side;
A shaft extending from the seating surface of the head to the other side;
With
The shaft portion is formed with a cylindrical female screw portion having a tip opened to the other side and a thread groove formed on the inner periphery.
On the surface side of the head, a knob portion that can be pinched with a finger is provided,
The knob portion is provided with an engaging portion capable of engaging a fastener ,
The head and the knob are formed in a plate shape,
The bolt characterized in that the thickness direction of the knob portion intersects the thickness direction of the head portion . 2. The bolt according to claim 1 , wherein the knob portion is formed in a mountain shape that becomes narrower with increasing distance from the head when viewed from the thickness direction of the knob portion. The bolt according to claim 1 or 2 , wherein the engaging portion is an engaging groove portion formed at a tip of the knob portion. The bolt according to any one of claims 1 to 3 , wherein the entire knob portion overlaps the head when viewed from the axial direction of the shaft portion. An illumination member having a light source;
A case for holding the illumination member;
A bolt used to fix the case;
A lighting device comprising:
The case is
A case main body formed in the embedded space formed in the wall portion, wherein a space portion having an opening portion is formed, an insertion hole is formed through which the space portion is communicated with the outside and the bolt is inserted. ,
A flange portion that is formed on the opening side of the case body, and that contacts the surface of the wall portion in a state in which the case body is accommodated in the embedded space;
With
The bolt is
A head is formed on one side and a seating surface is formed on the other side, and a head arranged in the space;
A shaft portion that extends from the seating surface of the head to the other side, and a tip is inserted into the insertion hole from the space portion side;
With
A cylindrical female screw that can be fastened to a male screw portion of an existing bolt disposed in the embedded space, the tip of the shaft portion having an opening on the other side and a thread groove formed in the inner periphery. Part is formed,
On the surface side of the head, a knob portion that can be pinched with a finger is provided,
The knob portion is provided with an engaging portion capable of engaging a fastener ,
The head and the knob are formed in a plate shape,
A lighting device, wherein a thickness direction of the knob portion intersects a thickness direction of the head portion . The lighting device according to claim 5 , wherein a fastening portion between the female screw portion and the male screw portion is located outside the case body in the embedded space. 7. The illumination according to claim 5 , wherein the knob portion is formed in a mountain shape that becomes narrower with distance from the head when viewed from the thickness direction of the knob portion. 8. apparatus. The lighting device according to any one of claims 5 to 7 , wherein the engagement portion is an engagement groove portion formed at a tip of the knob portion. The lighting device according to any one of claims 5 to 8 , wherein the entire knob portion overlaps the head portion when viewed from the axial direction of the shaft portion. A method of attaching to a wall portion of a lighting device comprising a lighting member having a light source and a case for holding the lighting member,
The case body of the case is housed in an embedded space formed in the wall portion with the opening of the space portion formed in the case body facing the surface side of the wall portion, and the case body The position of the male screw part of the existing bolt arranged in the embedded space and the insertion hole formed in the case body with the flange part formed on the opening side of the wall abutting the surface of the wall part An alignment process for alignment;
The shaft portion of the bolt including: a plate-shaped head portion having a surface formed on one side and a seat surface formed on the other side; and a shaft portion extending from the seat surface of the head to the other side. A bolt insertion step of introducing the through hole into the space from the opening side,
A bolt fastening step of fastening a cylindrical female screw portion formed on the shaft portion, the tip opening to the other side and having a thread groove formed on the inner periphery thereof, on the male screw portion of the existing bolt;
A lighting member holding step of storing and holding the lighting member in the space portion;
With
The bolt fastening process includes
A plate-like knob provided on the surface side of the head , wherein the bolt is rotated by pinching the knob with a thickness direction intersecting the thickness direction of the head with a finger. , A first bolt fastening step of fastening the female screw portion to the male screw portion of the existing bolt, or
A second bolt fastening step of fastening the female screw portion to the male screw portion of the existing bolt by engaging a fastener with an engaging portion provided in the knob portion and rotating the bolt;
A method of attaching the lighting device to the wall portion. The lighting device according to claim 10 , wherein in the bolt fastening step, the female screw portion is fastened to a male screw portion of the existing bolt located outside the case main body in the embedded space. How to attach to the wall.

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