JP5036670B2 - Recessed lighting fixture - Google Patents

Description

  The present invention relates to an embedded lighting fixture.

  2. Description of the Related Art Conventionally, there has been known an embedded lighting fixture that is installed by being embedded in a mounting hole formed in a mounting wall such as a ceiling surface. Further, as this type of embedded lighting fixture, an appliance main body in which an opening for emitting light is formed in the lower part, a light source provided inside the appliance main body, and an outer peripheral edge of the opening are formed. There is known a device including a flange portion and a mounting spring portion as a fixing means for the mounting wall portion (see, for example, Patent Document 1). A plurality of attachment spring portions are disposed in the circumferential direction of the flange portion, and are formed obliquely upward from above the flange portion.

  The procedure for installing an embedded lighting fixture with a mounting spring on the mounting wall is to first squeeze each mounting spring in the direction of the center of the fixture with your fingers against the elastic force of the mounting spring. In the state, the instrument main body and each attachment spring part are inserted into the attachment holes. Therefore, when the finger that has narrowed each attachment spring portion is released, each attachment spring portion comes into contact with the edge of the attachment hole. When the appliance main body is pushed upward, each attachment spring portion elastically recovers and expands while each attachment spring portion abuts against the edge of the attachment hole. Then, due to the elastic urging force that the mounting spring portion further expands, the fixture body is pulled upward, the flange portion is in pressure contact with the mounting wall portion, and the embedded lighting fixture is attached. It is installed on the wall. Therefore, the light irradiation part is provided in the vicinity of the vicinity of the opening, and even if it is an embedded luminaire that cannot be mounted and operated inside the luminaire from below, It can be attached.

By the way, in recent years, many highly airtight houses and the like have been constructed for the purpose of improving the airtightness of indoors by reducing the gaps between the joints and the joints between the ceiling and the wall, and improving the airtightness of the room and the like. Yes. For this reason, even when an embedded luminaire is installed on a mounting wall such as a ceiling surface, it is required to ensure a tight seal between the room and the back of the ceiling to ensure airtightness in the room. It has been.
Japanese Patent Laid-Open No. 10-69813

  However, even when the embedded luminaire provided with the mounting spring portion is brought into pressure contact with the mounting wall portion by the pushing force of the mounting spring portion, a gap may be generated between the flange portion and the mounting wall portion. there were. For this reason, it is difficult to seal between the room and the ceiling and the like, and it is difficult to ensure airtightness in the room.

  The present invention has been made to solve the above-described problems, and by eliminating a gap between the flange portion and the mounting wall portion, the space between the room and the back of the ceiling is reliably sealed, and the air An object of the present invention is to provide an embedded lighting apparatus that can ensure the performance.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in Claim 1, it has a light irradiation part in the lower part, the instrument main body in which the flange part was provided in the peripheral part of the light irradiation part, the light source part provided in the instrument main part, A plurality of mounting spring portions disposed in a circumferential direction of the flange portion and formed obliquely upward from above the flange portion, wherein the embedded lighting fixture covers an upper portion of the flange portion. One seal member is provided, and the first seal member is provided with a recess facing the mounting spring portion.

  In Claim 2, It is an embedded illuminating device of Claim 1 attached to the attachment hole of an attachment wall part via an auxiliary | assistant frame, Comprising: The said auxiliary | assistant frame is contact | abutted to the attachment hole periphery of an attachment wall part. A frame body, a fixture for fixing the frame body to the mounting hole, and a second seal member disposed on the upper surface of the frame body and in close contact with the periphery of the mounting hole.

  As effects of the present invention, the following effects can be obtained.

  In the first aspect of the present invention, the first seal member that covers the upper portion of the flange portion is provided, and the first seal member is provided with the recess facing the attachment spring portion, so that the first seal member is caused by interference with the attachment spring portion. Can be prevented, and deterioration of sealing performance due to the bending can be prevented. Further, in the region separated from the mounting spring portion, the pulling force toward the ceiling surface side is relatively weak and the contact pressure of the first seal member is reduced. In this region, the first seal member has a width and thickness. It is possible to secure the sealing property. Therefore, the space between the room and the back of the ceiling can be reliably sealed, and the airtightness of the room or the like can be ensured.

  In Claim 2, even if it is a case where an instrument main body is attached to an attachment wall part via an auxiliary | assistant frame, it is between an instrument main body and an auxiliary | assistant frame by the 2nd seal member provided in the instrument main body side and the auxiliary | assistant frame side. And the sealing property between an auxiliary | assistant frame and an attachment wall part is ensured. Therefore, the space between the room and the back of the ceiling can be reliably sealed, and the airtightness of the room or the like can be ensured.

  Next, embodiments of the invention will be described with reference to the drawings.

  An embedded lighting apparatus 11 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 6. The embedded luminaire 11 according to the first embodiment is installed by being embedded in a circular mounting hole 2 formed in the ceiling surface 1 as a mounting wall portion. In the following description, the vertical direction will be described as the vertical direction in a state where it is installed on the ceiling surface 1. As shown in FIGS. 1 to 4, the embedded lighting fixture 11 includes a fixture main body 21, a flange portion 41, a light source portion 50, a main attachment spring portion 61 and a sub attachment spring portion 62 as attachment spring portions, One seal member 42 is provided.

  The instrument main body 21 has an instrument main body 22 and a lower frame 31, and the instrument main body 22 and the lower frame 31 are formed using a metal material such as aluminum having thermal conductivity. The instrument main body 22 has a cylindrical side wall part 23 and a bottom plate part 24, and a lighting device (not shown) for lighting the LED 53 that is the light source of the light source part 50 is provided inside the instrument main body 22. Contained. The top portion of the instrument main body 22 is closed by fixing a top plate portion 25 formed of a metal plate, and a terminal block 26 is installed in a portion extending outward from the top plate portion 25. An electric wire (not shown) from an external power source is electrically connected to the terminal block 26. Further, the terminal block 26 and the lighting device are electrically connected by an electric wire (not shown) penetrating the side wall portion 23. The lower surface of the bottom plate portion 24 of the instrument main body 22 has a configuration in which the lower frame 31 and the light source unit 50 are mounted.

  The lower frame 31 is a portion to which the light source unit 50 is attached while being fixed to the lower portion of the bottom plate portion 24 of the instrument main body 22 by a lower frame fixing bolt 82. The lower frame 31 has an upper plate part 32, an opening part 33 as a light irradiation part, and a flange part 41. In the upper plate portion 32, light source hole portions 34 through which light from the light source portion 50 is passed and to which the lens 54 is attached are formed at five equal intervals on the same circumference. The lower part of the lower frame 31 is formed in a divergent shape that is gradually expanded, and an opening 33 is formed as a light irradiation part that emits light from the light source part 50. A reflection surface 35 that reflects light from the light source unit 50 is formed from the opening 33 to the inside. As shown in FIGS. 2 and 3, the flange portion 41 is a portion that comes into contact with the ceiling surface 1 in a state where the embedded lighting device 11 is installed in the mounting hole 2 of the ceiling surface 1, and the outer peripheral edge of the opening 33. It is formed in the part.

  The light source unit 50 includes a substantially planar irradiation surface 51, and is provided so that the substantially planar irradiation surface 51 is located in the instrument main body 21 at a position close to the opening 33. The light source unit 50 includes a substrate 52, a lens 54, a light guide plate 56, and a spacer 58. The substrate 52 is provided with LEDs 53 as light sources at equal intervals at five locations on the same circumference so as to correspond to the light source holes 34 of the lower frame 31. The board | substrate 52 and the lighting device (not shown) are electrically connected by the electric wire (not shown). The lens 54 is a member that transmits the light from the LED 53 and forms the irradiation surface 51. The lens 54 is formed of a translucent resin material or the like, and a housing portion 55 corresponding to the LED 53 is formed on the upper surface side. The light guide plate 56 is a member that holds the lens 54 and fixes it to the lower frame 31, and a lens holding hole 57 is formed at a position where the lens 54 is held. In addition, the light guide plate 56 is formed of a translucent resin material or the like, and is configured so that the lower part is brightened by the light from the lens 54, so that the planar illumination surface 51 is configured together with the lens 54. To do. The lower frame 31 and the light guide plate 56 are fixed by a light guide plate fixing bolt 81 at the center. The spacer 58 is a member that is interposed between the light guide plate 56 and the lower frame body 31 and adjusts the distance between the light guide plate 56 and the lower frame body 31, and the lens insertion hole 59 so as not to interfere with the lens 54. Is formed. In this embodiment, the irradiation surface 51 is substantially planar. However, the irradiation surface 51 is not limited to a substantially planar shape. For example, the irradiation surface 51 may be curved upward or downward. The lens 54 may be provided so as to protrude or dip into the irradiation surface 51. Moreover, although the light-guide plate 56 has translucency and the example which becomes bright with the lens 54 was shown, it is not limited to this, For example, only the lens 54 may irradiate light. The instrument body 21 has a structure in which the inside is sealed by the above-described configuration, so that air does not flow between the room and the back of the ceiling through the interior of the instrument body 21. Yes.

  As shown in FIG. 1 to FIG. 4, the main attachment spring portion 61 and the sub attachment spring portion 62 as attachment spring portions are fixing means for fixing the embedded luminaire 11 to the ceiling surface 1. A plurality of members arranged in the circumferential direction and formed obliquely upward from above the flange portion 41. In the present embodiment, a pair of main mounting spring portions 61 are disposed so as to face each other in the diameter direction of the flange portion 41, and a pair of sub mounting spring portions 62 are in phase with the main mounting spring portion 61 by 90 degrees. It is arrange | positioned so that it may oppose in the diameter direction which shifted. Therefore, in this embodiment, the main attachment spring portion 61 and the sub attachment spring portion 62 are arranged at four equal intervals in the circumferential direction of the flange portion 41. The main attachment spring portion 61 and the sub attachment spring portion 62 are both formed by bending a metal plate made of a stainless steel material or the like. In addition, about the shape of an attachment spring part, an attachment position, a number, etc., it is not limited to the thing of a present Example. The main attachment spring portion 61 and the sub attachment spring portion 62 are fixed by the bottom plate portion 24 of the instrument main body 22 and the upper plate portion 32 of the lower frame 31, the end portion of the main attachment spring portion 61, and the sub attachment spring portion. This is done by pinching the ends of 62.

  The 1st seal member 42 is attached to the upper surface of the flange part 41, and is for sealing between room | chamber interior and a ceiling back. As shown in FIGS. 4 and 5, the first seal member 42 is formed in a ring shape so as to cover the upper surface of the flange portion 41, and is opposed to each main attachment spring portion 61 and each sub attachment spring portion 62. Four places are cut out to form a recess 43. Since the first seal member 42 is formed with the recess 43, it is possible to prevent the first seal member 42 from being bent due to interference with the main attachment spring portions 61 and the sub attachment spring portions 62. Prevents deterioration of sealing performance due to.

  Here, in order to explain the relationship between the recess 43 and the sealing performance of the first seal member 42, the case where the seal member 142 without the recess is provided will be described. For example, as shown in FIG. 6, when the seal member 142 having a uniform width without a recess is provided on the upper surface of the flange portion 41, the seal member 142 includes the main attachment spring portions 61 and the sub attachment spring portions. Therefore, the seal member 142 is bent by interference with the main attachment spring portion 61 and the sub attachment spring portion 62. When the seal member 142 is bent, a portion or a gap in which the contact pressure is extremely reduced is generated on the contact surface between the seal member 142 and the flange portion 41 and the contact surface between the seal member 142 and the ceiling surface 1. Will be damaged.

  On the other hand, as shown in FIG. 4, the first seal member 42 is provided with a recess 43 as in this embodiment, so that the first seal member 42 is bent due to interference between the main mounting spring portion 61 and the sub mounting spring portion 62. Can be prevented. For this reason, the contact surface between the first seal member 42 and the flange portion 41 and the contact surface between the first seal member 42 and the ceiling surface 1 can be prevented from generating a portion or gap where the contact pressure is extremely reduced. Airtightness can be ensured.

  In addition, if the recessed part 43 is provided in the 1st seal member 42, the 1st seal member 42 will become thin in the part, and a contact area will reduce. However, in the vicinity of each main attachment spring portion 61 and each sub attachment spring portion 62, a force to pull up the instrument body 21 to the ceiling surface 1 acts strongly, so that it is applied around the recess 43 of the first seal member 42. The contact pressure becomes sufficiently large. For this reason, when the recessed part 43 is provided, the contact area of the part decreases, but on the other hand, since the contact pressure around the recessed part 43 is sufficiently secured, airtightness can be secured.

  Further, in the portion separated from each main attachment spring portion 61 and each sub attachment spring portion 62, the instrument main body 21 is relatively ceiling-mounted compared to the portion close to each main attachment spring portion 61 and each sub attachment spring portion 62. The force to pull up on the surface 1 is weakened. For this reason, the contact pressure applied to the first seal member 42 is also relatively reduced at portions separated from the main attachment spring portions 61 and the sub attachment spring portions 62. In view of this, the width of the first seal member 42 is widened at portions separated from the main attachment spring portions 61 and the sub attachment spring portions 62, thereby ensuring airtightness.

  In the present embodiment, the recess 43 is formed by cutting out portions facing the main attachment spring portions 61 and the sub attachment spring portions 62, but the shape of the recess 43 is limited to this. It is not a thing. In other words, the recess 43 may be any one that can avoid bending due to interference with each main mounting spring portion 61 and each sub mounting spring portion 62 of the first seal member 42.

  For example, by providing the recess 43 in a region wider than the region where each main attachment spring portion 61 and each sub attachment spring portion 62 are formed, each main attachment spring portion 61, each sub attachment spring portion 62 and the first An interval may be generated between the sealing member 42 and the sealing member 42. Moreover, you may provide the recessed part 43 in the area | region slightly narrower than the part in which each main attachment spring part 61 and each sub attachment spring part 62 are formed. In addition, the recess 43 is not cut out so that the bases 61a and 62a of the main attachment springs 61 and the sub attachment springs 62 are pulled out below the first seal member 42. The first seal member 42 is formed to be depressed at a certain depth, and the respective base portions 61a and 62a of the main attachment spring portions 61 and the sub attachment spring portions 62 are formed in the first seal member 42. It is good also as a structure engage | inserted by the recessed part 43 which is a hollow made. In this manner, by providing the recess 43, it is possible to avoid bending due to interference between the first seal member 42 and each of the main mounting spring portions 61 and each of the sub mounting spring portions 62. It is possible to prevent the deterioration of the sealing performance due to.

  In this manner, the first seal member 42 fills the gap between the ceiling surface 1 and the embedded lighting device 11 around the mounting hole 2 of the ceiling surface 1 and seals the space between the room and the ceiling back. This ensures airtightness in the room.

  Next, a description will be given of a procedure for installing the embedded luminaire 11 having the attachment spring portion on the ceiling surface 1. First, against the elastic force of each main attachment spring portion 61 and each sub attachment spring portion 62. Each main attachment spring portion 61 and each sub attachment spring portion 62 are narrowed toward the center of the instrument body 21 with fingers. In this state, the instrument main body 21, each main attachment spring portion 61, and each sub attachment spring portion 62 are inserted into the attachment hole 2. Therefore, when the fingers that have narrowed each main attachment spring portion 61 and each sub attachment spring portion 62 are released, each main attachment spring portion 61 and each sub attachment spring portion 62 come into contact with the edge of the attachment hole 2. When the instrument main body 21 is pushed upward, each main attachment spring portion 61 and each sub attachment spring portion 62 and each sub attachment spring portion 62 come into contact with the edge of the attachment hole 2, while each main attachment spring portion 61 and each sub attachment spring portion. 62 is elastically restored and expanded. Then, the instrument main body 21 is pulled upward by the elastic biasing force of each main attachment spring portion 61 and each sub attachment spring portion 62 to further expand, and the flange portion 41 becomes the first seal member 42. Thus, the embedded lighting device 11 is installed on the ceiling surface 1 in a state of being pressed against the ceiling surface 1.

A second embodiment of the present invention will be described with reference to FIGS.
The second embodiment is different from the first embodiment in that the appliance main body 21 is attached by being embedded in a round attachment hole 2 formed in the ceiling surface 1 via an auxiliary frame 91. The auxiliary frame 91 is used, for example, when an existing embedded lighting fixture is removed and replaced with a smaller-diameter embedded lighting fixture. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The auxiliary frame 91 is attached to the ceiling surface 1 and has a configuration in which the instrument main body 21 is mounted. The auxiliary frame 91 includes a fixing member 90 including a frame body 92, a column 93, and a presser 94, Two seal members 95 are provided. The frame body 92 is configured by fitting and fixing a ring-shaped member 99 to an inner cylinder 96, and comes into contact with the periphery of the mounting hole 2 formed in the ceiling surface 1. The outer diameter L1 of the frame body 92 is formed larger than the diameter of the mounting hole 2. Further, the inner diameter L <b> 2 of the inner cylinder 96 of the frame body 92 is formed to be smaller than the diameter of the mounting hole 2 and the flange portion 41 of the instrument main body 21 and larger than the diameter of the instrument main body 22.

  Posts 93 are erected at two locations on the circumference of the frame body 92 so as to face each other in the diametrical direction, and elongated holes 97 are formed in the vertical direction in the support column 93. The presser 94 is a fixing means for fixing the auxiliary frame 91 to the ceiling surface 1 and is supported by the support column 93 so as to be movable in the vertical direction along the elongated hole 97. The presser 94 has a structure in which one end side is fixed to the support post 93 and the other end abuts against the ceiling surface 1 on the outside of the support post 93 to hold the ceiling surface 1. The auxiliary frame 91 is configured to be fixed to the ceiling surface 1 by sandwiching the ceiling surface 1 therebetween. Even when the attachment hole 2 formed in the ceiling surface 1 is larger than the flange portion 41 of the instrument main body 21, the instrument main body 21 can be attached to the ceiling surface 1 through the auxiliary frame 91.

  The upper surface of the frame body 92 is covered with a second seal member 95. As shown in FIG. 7, the second seal member 95 is formed in a ring shape so as to cover the upper surface of the frame body 92, and a portion corresponding to the support column 93 is cut out. In addition, the 2nd seal member 95 is not limited to what is formed by notching the part of the support | pillar 93, You may form in a uniform width | variety. A space between the auxiliary frame 91 and the ceiling surface 1 is securely sealed by the second seal member 95 provided on the auxiliary frame 91, and an embedded type is provided by the first seal member 42 provided on the instrument body 21 side. Since the space between the lighting fixture 111 and the auxiliary frame 91 is sealed, the space between the room and the back of the ceiling is sealed, and the airtightness of the room is ensured.

  Next, a procedure for installing the embedded lighting fixture 111 including the auxiliary frame 91 on the ceiling surface 1 will be described. First, the auxiliary frame 91 is attached to the ceiling surface 1, and the appliance main body 21 is attached to the auxiliary frame 91. In order to install the auxiliary frame 91 on the ceiling surface 1, first, the auxiliary frame 91 is inserted into the mounting hole 2 from the column 93 side in a state where the presser 94 is supported so as to be vertically movable with respect to the column 93. Then, the auxiliary frame 91 is attached to the ceiling surface 1 by fixing the presser 94 to the support column 93 in a state where the other end side of the presser 94 is in contact with the upper side of the ceiling surface 1. The procedure for attaching the instrument main body 21 to the auxiliary frame 91 is the same as the procedure for installing the instrument main body 21 on the ceiling surface 1 described in the first embodiment.

1 is a perspective view of an embedded lighting fixture 11 according to Embodiment 1. FIG. The front view of the ceiling-mounted state of the embedded lighting fixture 11 which concerns on Example 1. FIG. The side view of the ceiling mounting state of the embedded lighting fixture 11 which concerns on Example 1. FIG. 1 is a longitudinal sectional view of an embedded illumination fixture according to Embodiment 1. FIG. The top view of the 1st seal member 42 of the instrument main body 21 which concerns on Example 1. FIG. The longitudinal cross-sectional view of the embedded lighting fixture 211 which mounted | wore with the sealing member 142 which does not provide a recessed part. FIG. 9 is a perspective view of an auxiliary frame 91 according to a second embodiment. The longitudinal cross-sectional view of the ceiling mounting state of the embedded lighting fixture 111 which abbreviate | omitted one part which concerns on Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceiling surface 11 Implantable lighting fixture 21 Appliance main body 33 Opening part 41 Flange part 42 First seal member 43 Recessed part 50 Light source part 61 Main attachment spring part 62 Secondary attachment spring part 90 Fixing tool 91 Auxiliary frame 92 Frame body 93 Post 94 Presser 95 Second seal member

Claims (2)

An instrument body having a light irradiation part at the bottom, and a flange part provided on the outer peripheral edge of the light irradiation part;
A light source provided inside the instrument body;
A plurality of arranged in the circumferential direction of the flange portion, and an attachment spring portion formed obliquely upward from above the flange portion,
An embedded lighting apparatus, wherein a first seal member that covers an upper portion of the flange portion is provided, and a concave portion that faces the mounting spring portion is provided in the first seal member. The embedded lighting device according to claim 1, wherein the embedded lighting device is attached to an attachment hole of the attachment wall portion via an auxiliary frame.
The auxiliary frame is a frame that comes into contact with the periphery of the mounting hole of the mounting wall,
A fixture for fixing the frame to the mounting hole;
And a second seal member disposed on the upper surface of the frame and in close contact with the periphery of the mounting hole.

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