JP3591865B2 - Recessed lighting fixture - Google Patents

Description

[0001]
[Industrial applications]
According to the present invention, the frame body is fixed in a state where the frame body is inserted from the through hole to the outside in the through hole radial direction of the frame body which is inserted toward the back surface side of the fixed plate from the through hole formed in the fixed plate such as a ceiling plate or a wall plate. A flange abutting on the plate surface side is provided, and a reflection plate that is inserted from the through hole toward the back side of the fixed plate is mounted on the inside of the through hole radial direction of the frame body, and the frame body includes The present invention relates to an embedded lighting device to which a stopper for preventing the frame body from coming out of the through hole is attached in a protruding position in which a front end portion protrudes radially outward from a peripheral edge of the through hole on the back surface side of the fixing plate. .
[0002]
[Prior art]
The recessed lighting device prevents the frame body that has entered through the through-hole from coming out of the through-hole in a protruding position in which the front end protrudes outward in the through-hole radial direction from the periphery of the through-hole on the back side of the fixing plate. Fixing the frame body that is inserted toward the back side of the fixed plate by sandwiching the fixed plate from the front and back with the stopper that makes the stopper and the flange that comes into contact with the front surface of the fixed plate with the frame inserted through the through hole It is configured so that it can be installed in a state where it is fixed to the plate and the reflector attached to the inside of the through hole in the through hole direction of the frame enters toward the back side of the fixed plate, but it does not escape from the through hole of the frame. As the stopper, for example, as described in Japanese Utility Model Application Laid-Open No. 4-78709, a stopper is inserted into an opening such as a slit formed in a frame body and locked in the protruding position at the periphery of the opening ( Hereinafter, it is referred to as a first stopper.) As described in Japanese Unexamined Patent Publication No. 4-62709, the frame is fixed at a fixed position of the frame, urged to return to the protruding posture, and elastically displaced against the urging force. In addition, there is one manufactured by a leaf spring or the like, which is changed to a posture that can be inserted from the through hole (hereinafter, referred to as a second stopper).
The first stopper requires an operation in which the reflection plate is removed from the frame, the frame is inserted toward the back surface of the fixed plate, and the frame is locked to the periphery of the opening in the protruding position. While there is a disadvantage that the fixing work of the body to the fixing plate becomes complicated, there is an advantage that the retaining from the through hole is reliable and the reliability is high, whereas the second retaining device is resistant to the urging force. If the posture is changed to a position that can be inserted from the through-hole together with the frame by the elastic displacement, and then inserted into the through-hole, then, without specially operating the second stopper, the elastic restoring force of the fixed plate back side. The frame body is prevented from coming off by returning to the protruding position, so that there is an advantage that the fixing work of the frame body to the fixing plate is simplified, but the frame body fixed to the fixing plate is forcibly strong on the fixing plate surface side. When pulled, the second The stopper is strongly pressed against the peripheral edge of the through-hole, and its tip is elastically displaced inward in the radial direction of the through-hole against the urging force. There is a disadvantage that the properties are relatively low.
For this reason, it is desirable to determine rationally whether to use the first retaining device or the second retaining device according to the installation location of the embedded lighting fixture. However, in the case where the conventional recessed lighting device has a retaining structure using the first retaining member, a frame body having a structural specification to which only the first retaining member can be attached is manufactured and assembled, and the second retaining member is assembled. In the case where the stopper is used as a retaining specification, a frame having a structural specification to which only the second retaining member can be attached is manufactured and assembled.
[0003]
[Problems to be solved by the invention]
For this reason, in the embedded lighting fixture of a fixed specification, the retaining specification is changed to a retaining specification using the first retaining member or a retaining specification using the second retaining member, and the first retaining member and the second retaining member are changed. If it is necessary to properly use the retainer, it is necessary to assemble a frame having a structural specification corresponding to the retainer, so that there is a drawback that the manufacturing cost of the embedded lighting fixture is high.
[0004]
The present invention has been made in view of the above circumstances, and by devising a structure of a frame body to which a retaining member is attached, in a fixed specification embedded lighting device, the retaining specification is changed at a low cost. The purpose is to be able to.
[0005]
Another object of the present invention is to reduce the amount of light reflected from the reflector by mounting a large reflector while simplifying the structure of the second stopper.
[0006]
Another object of the present invention is to simplify the structure for attaching the second stopper to the frame.
[0007]
[Means for Solving the Problems]
The feature configuration of the present invention for achieving the above object is that the frame is inserted from the through hole to the outside of the through hole radial direction of the frame to be inserted from the through hole formed in the fixing plate toward the back side of the fixing plate. A flange is provided in contact with the front surface side of the fixed plate in a state, and a reflection plate that is inserted from the through hole toward the back surface side of the fixed plate is mounted on a radially inner side of the through hole of the frame body. An embedded type to which a stopper for preventing the frame body from coming out of the through hole is attached in a protruding posture in which a front end portion protrudes outward in a radial direction of the through hole from a peripheral edge of the through hole on the back surface side of the fixing plate. A lighting fixture, wherein a first mounting portion that can be inserted into an opening formed in the frame body and that can be attached with a first stopper that is locked to the periphery of the opening in the protruding position, and a fixed position of the frame body And return to the protruding position. Is Utsukezei and a second attachment portion attachable to the second retaining member is posture change insertable attitude from the through-hole together with the frame body is provided with an elastic displacement of the against the biasing force Has been
[0008]
The second stopper is integrally formed of an elastic material with a fixing portion fixed to a fixing surface formed on the frame body and a projecting portion projecting radially outward of the fixing portion in a cantilever posture outside the through hole. The posture is changed to a posture that can be inserted from the through hole together with the frame by elastic deformation of the protruding portion, and the position where the first mounting portion and the second mounting portion are along the circumferential direction of the through hole is changed. The fixing surface is arranged vertically and the fixing surface of the second retaining member is fixed to the fixing portion of the second retaining member in the protruding position. It is located in a state where it penetrates the inside of the through-hole radial direction and is fixed .
[0009]
When the second stopper is locked in the opening and is prevented from rotating, the structure for attaching the second stopper to the frame can be simplified.
[0010]
[Action]
In a fixed-type embedded lighting fixture, the retaining specification is changed to a retaining specification using a first retaining member or a retaining specification using a second retaining member, and the first retaining member and the second retaining member are changed. When it is desired to properly use the above, a retaining member corresponding to the retaining specification can be attached without changing the structural specification of the frame.
[0011]
Further, the second stopper is integrally formed of an elastic material integrally with a fixing portion fixed to the fixing surface formed on the frame body, and a protruding portion projecting in a cantilever posture radially outward from the fixing portion in the radial direction of the through hole. The posture is changed to a posture that can be inserted from the through hole together with the frame by elastic deformation of the protruding portion, and the first mounting portion and the second mounting portion are arranged vertically so as to be aligned in the circumferential direction of the through hole. The fixing surface allows the fixing portion of the second stopper to enter the through hole radially inward of the through hole radially outward side surface of the opening periphery at the position where the first stopper is locked in the protruding position. Since it is arranged so as to be fixed , the structure of the second stopper can be simplified, and the fixing surface for fixing the second stopper stops the fixing portion of the second stopper from the first stopper. At the position where the stopper is locked in the protruding position, A larger reflector is attached, compared to the case where the outer side in the through-hole radial direction and the through-hole radial direction are arranged at the same position in the through-hole radial direction or a state fixed to the outer side in the through-hole radial direction, and the amount of reflected light from the reflector is reduced. Reduction can be suppressed.
[0012]
In other words, in the case where the first retaining member is used as the retaining member, the first retaining member is inserted into the opening and locked in the protruding position at the periphery of the opening of the frame body. Since the base-side end enters the through-hole radial direction inside of the frame, the reflecting plate of the reflector is positioned so that the reflector fits in the through-hole radially inner than the base-side end of the first stopper that has entered the frame. A second stopper for which the size and shape need to be determined, and in which a fixed portion fixed to the fixed surface and a protruding portion projecting in a cantilever position radially outside the through hole from the fixed surface are integrally formed. In the case of the retaining specification, the projecting portion of the second retaining member is elastically deformed, and even if the posture is changed to a position that can be inserted from the through hole together with the frame body, the base side of the projecting portion is fixed to the through hole diameter from the fixing surface. It is bent in a state of protruding outward in the direction, so the bay As the deformed portion can be inserted from the through-hole together with the frame body, it is necessary to determine the size and shape of the frame.
[0013]
Therefore, in the embedded lighting device of a fixed specification, without changing the structural specification of the frame, the retaining specification of the retaining member is either the retaining specification by the first retaining member or the second retaining member integrally formed of an elastic material. In providing a first attachment portion to which a first stopper can be attached and a second attachment portion to which a second stopper can be attached, as shown in a comparative example of FIG. The fixing surface 01 for fixing the second stopper 5 made of a leaf spring or the like fixes the fixing portion 5a of the second stopper 5 to the position where the first stopper 4 is locked in the protruding position. When it is arranged at the same position in the through hole radial direction outward side surface 02 of the opening periphery in the through hole radial direction or in a state fixed to the outer side in the through hole radial direction further than that, the case where the first retaining member 4 is used as the retaining specification. of, The amount d1 of the first retaining member 4 locked to the peripheral edge of the opening of the frame body 03 in the projecting posture from the radially outward side surface 02 of the peripheral edge of the opening toward the radially inward side of the through hole, and the second retaining member. 5, when the protrusion 5b of the second stopper 5 is elastically deformed and inserted together with the frame 03 from the through hole B of the fixing plate A, the base side thereof is in the through hole radial direction from the fixing surface 01. It is necessary to determine the size and shape of the reflection plate 04 such that an interval equal to or more than the amount d, which is the sum of the amount d2 protruding outward, is formed between the inner peripheral surface of the through hole B and the outer surface of the reflection plate 04. In addition, the size of the reflection plate 04 that can be mounted inside the through hole of the frame body 03 in the radial direction is reduced accordingly.
[0014]
As shown in FIG. 1, for example, the first and second mounting portions 7 and 8 are vertically arranged such that the positions along the circumferential direction of the through hole B are aligned. The fixing surface 8a for fixing the fixing portion 5a of the stopper 5 penetrates the fixing portion 5a more than the radially outward side surface 1c of the peripheral edge of the opening at the position where the first stopper 4 is locked in the protruding position. If it is arranged so as to be inserted into the hole diameter direction inner side and fixed, the first retaining member 4 in the position where the first retaining member 4 is locked in the protruding posture in the case of the retaining specification by the first retaining member 4. The range e located radially inward of the through-hole radially outward side surface 1c of the opening periphery and the protrusion 5b of the second stopper 5 when the second stopper 5 is designed to prevent the second stopper 5 from falling off. Elastically deformed and inserted through frame B with frame 1 Its base side from the range f projecting from the fixing surface 8a into the through hole diameter direction outer side is heavy when that interval must be formed between the through hole B in the peripheral surface and the reflecting plate 3 outer surface is reduced, the frame Thus, the size of the reflector 3 that can be mounted inside the through hole in the radial direction can be increased.
[0015]
In the case where the second stopper is locked to the opening and is prevented from rotating, it is possible to fix the second stopper in a detent state by fixing one part of the second stopper to the frame with a screw or the like. it can.
[0016]
【The invention's effect】
The recessed lighting device according to the first aspect of the present invention can change the retaining specification of the recessed lighting device of a fixed specification at a low cost.
[0017]
Also, implantable luminaire according to claim 1 can also while simplifying the structure of the second stopper member, by mounting a large reflecting plate, to suppress the decrease in the amount of reflected light from the reflecting plate.
[0018]
Implantable luminaire according to claim 2 can simplify the mounting structure of the frame of the second retaining member.
[0019]
【Example】
FIGS. 1 and 2 show a case in which a frame 1 penetrates from a circular through hole B formed in a ceiling plate A, which is an example of a fixing plate, to a radially outer side of the through hole of the frame 1 to be inserted toward the back surface side of the ceiling plate. An annular flange 2 is provided which comes into contact with the surface of the ceiling plate in a state of being inserted through the hole B, and a reflection plate which is inserted from the through hole B toward the rear surface of the ceiling plate from the through hole B to the inside of the frame body 1 in the through hole radial direction. 3 is mounted, and the frame 1 is inserted into the frame 1 from the through hole B in a protruding posture in which the front end protrudes outward in the through hole radial direction from the peripheral edge of the through hole B on the back surface side of the ceiling plate. The downlight is an example of an embedded lighting fixture to which the stoppers 4 and 5 for preventing the escape from the through hole B are attached, and a vertically long slit hole which is an example of an opening formed in the frame 1 is shown. 6 and engaged with the periphery of the slit hole in the above-mentioned protruding posture. A first attachment portion 7 to which the first stopper 4 can be attached and a fixed position at the lower portion of the frame 1 are urged to return to the protruding position, and against the urging force. And the second mounting portion 8 to which the second stopper 5 whose posture is changed to a position in which it can be inserted from the through hole B together with the frame body 1 by the elastic displacement of the frame 1 is aligned with the position along the through hole circumferential direction. The upper and lower holders are arranged so that the retaining specification can be changed without changing the structural specification of the frame body 1 by using the first retaining member 4 as shown in FIGS. As shown in FIG. 9, it is configured to be able to be changed to a retaining specification by the second retaining member 5.
[0020]
The frame 1 is formed by sheet metal molding in a downward U-shape in a side view, and both ends of a U-shaped band-shaped frame 1a having both side edges bent are screwed to a resin-made cylindrical frame 1b. A support frame 11 made of sheet metal for supporting the socket 10 of the incandescent lamp 9 is screwed to the upper surface side of the band-shaped frame 1a, and the above-mentioned flange 2 is integrated with the lower end side of the cylindrical frame 1b. Is molded.
[0021]
The reflecting plate 3 is formed by sheet metal forming a circular downward bowl shape in a plan view, has a through hole 3a through which the incandescent lamp 9 is inserted into the inner central portion thereof, and screws the upper portion thereof into the band-shaped frame 1a. The lower peripheral edge 3b is fitted and fixed in an annular step formed on the inner peripheral side of the flange 2.
[0022]
As shown in FIGS. 6 and 7, the first stopper 4 is pressed against a slide fitting 12 slidably mounted along the slit hole 6 to press the slide fitting 12 against the back surface of the ceiling plate. The member 13 is mounted so as to be vertically swingable around the horizontal axis X.
[0023]
The slide fitting 12 is formed by sheet metal forming a thin plate in an upward U-shape with a width slightly smaller than the width of the slit hole 6, and each of opposing pieces 12 a opposed to each other with a gap is provided on the back side of the ceiling plate. A pressing piece 12b pressed against the slit and a penetrating piece 12c inserted through the slit hole 6 radially inward from the slit hole 6 extend, and each of the penetrating pieces 12c has a retaining piece 12d from the slit hole 6 on the lateral side. A rib 12e is formed to bend laterally on the upper free end side of each of the opposing pieces 12a, and the slide fitting 12 is pressed against each of the ribs 12e against the back side of the ceiling plate. At the same time, an elastic piece 12f which is pressed against the outer surface of the frame body 1, that is, the outer surface of the strip-shaped frame 1a next to the slit hole 6 and elastically bends upwardly is extended. It is upward bent.
[0024]
The operation member 13 is supported so as to be vertically swingable around a horizontal axis X across the right and left insertion pieces 12c, and is operated to swing vertically by being hooked on a finger with the horizontal axis X interposed therebetween. And an inner surface of the frame 1, that is, a pressing arm 13 b that is pressed against the inner surface of the belt-shaped frame 1 a, and is formed into an S-shape in a side view integrally provided.
[0025]
The second stopper 5 is formed of a band-shaped leaf spring which is an example of an elastic material. As shown in FIG. 11, the second attachment stopper 8 is formed on the band-shaped frame 1a of the frame body 1. A fixed plate portion 5a fixed to the fixed surface 8a and a protruding plate portion 5b projecting outward in the through hole radial direction from the fixed plate portion 5a in a cantilever posture are integrally formed by bending.
[0026]
The second mounting portion 8 is formed by stamping and forming a portion of the band-shaped frame 1 a at the lower end side of the slit hole 6 forming the first mounting portion 7 radially inward of the through hole, and a fixing plate of the second stopper 5. The fixing surface 8a for fixing the portion 5a is arranged such that the fixing plate portion 5a is positioned in the through hole radial direction more than the through hole radial direction outward side surface 1c of the peripheral edge of the slit hole at the position where the first stopper 4 is locked in the protruding posture. It is arranged in a state where it enters inside and is fixed.
[0027]
Then, in the above-mentioned fixed-type embedded lighting fixture, when it is desired that the retaining specification of the embedded retaining fixture is the retaining specification by the first retaining member 4, as shown in FIGS. When the operation member 13, the insertion piece 12 c, and the retaining piece 12 d are inserted into the slit hole 6 from the radial outside of the through-hole and the second retaining member 5 is to be used as a retaining specification, as shown in FIGS. Then, the fixing plate portion 5a of the second stopper 5 is applied to the fixing surface 8a formed on the band-shaped frame 1a, and is screwed together with the band-shaped frame 1a to the cylindrical frame 1b to change the structural specification of the frame 1. The first retaining member 4 or the second retaining member 5 corresponding to the retaining specification can be attached without the retaining member.
[0028]
As shown in FIG. 9, the second stopper 5 is fixed to the cylindrical frame 1b together with the band-shaped frame 1a by screwing one portion of the fixed plate 5a, and the end of the fixed plate 5a. 5c is locked in the slit hole 6 and is prevented from rotating.
[0029]
Next, a method of installing the above embedded lighting fixture will be described.
In the case of the retaining specification using the first retaining member 4, the incandescent lamp 9 and the reflecting plate 3 are removed, and the rib 12e of the first retaining member 4 inserted into the slit hole 6 is removed as shown in FIG. The elastic piece 12f is held along the outer surface of the belt-shaped frame 1a, and is inserted together with the frame 1 toward the rear surface of the ceiling plate until the flange 2 contacts the ceiling plate surface a. ), The slide fitting 12 is pushed out to the upper side of the back surface of the ceiling plate until the retaining piece 12d comes into contact with the inner surface of the belt-shaped frame 1a, and as shown by the solid line in FIG. The pressing piece 12b is pressed against the back surface b of the ceiling plate by the downward movement of the metal fitting 12 along the slit hole 6.
[0030]
When the operation arm 13a of the operation member 13 is pivoted downward as shown by the arrow, the tip of the pressing arm 13b is pressed against the inner surface of the strip-shaped frame 1a next to the slit hole 6, and the flange 2 contacts the ceiling plate surface a. When the operation arm 13a is further rocked, the elastic piece 12f of the slide fitting 12 is elastically deformed, and the horizontal axis X is moved to the tip of the pressing arm 13b. The sliding bracket 12 is further moved downward with the portion as a fulcrum, and the entire slide bracket 12 is further pressed down, the horizontal axis X moves slightly below the tip of the pressing arm 13b, and the operating arm 13a contacts the inner surface of the belt-shaped frame 1a. Then, as shown in FIG. 5 (c), the first retaining piece is held in a state in which the pressing piece 12b of the slide fitting 12 strongly presses the rear surface b of the ceiling plate by the elastic restoring force of the elastically deformed elastic piece 12f. 4 is locked in the projecting position in the slit periphery, the frame 1 is fixed to the ceiling plate A.
[0031]
Next, the reflecting plate 3 is inserted into the back side of the ceiling plate from the inside of the flange 2 and screwed to the belt-shaped frame 1a, and the incandescent lamp 9 is mounted on the socket 10.
[0032]
When the embedded lighting fixture of the retaining specification by the first retaining member 4 is removed from the ceiling panel A, an operation reverse to the installation operation described above may be performed.
[0033]
In the case of the retaining specification using the second retaining member 5, as shown in FIG. 10, the protruding plate portion 5b of the second retaining member 5 is elastically deformed by a finger so as to be along the outer surface of the band-shaped frame 1a. (2) Change the posture of the stopper 5 together with the frame 1 to a position in which it can be inserted from the through hole B, hold the state, and maintain the state until the flange 2 abuts on the ceiling plate surface a. The protruding plate portion 5b, which has entered the rear surface of the ceiling plate, pushes the rear surface b of the ceiling plate as shown by a virtual line in FIG. The frame 1 is fixed to the ceiling plate A.
[0034]
When removing the embedded lighting fixture of the retaining specification by the second retaining member 5 from the ceiling plate A, the incandescent lamp 9 and the reflecting plate 3 are removed as necessary, and the frame 1 is forcibly removed. When pushed down, the protruding plate portion 5b of the second stopper 5 is pressed against the back surface b of the ceiling plate around the through hole B and elastically deforms along the outer surface of the belt-shaped frame 1a, and is pushed out from the through hole B.
[0035]
[Other Examples]
1. The frame in which the first mounting portion and the second mounting portion are provided may be formed in a bottomed cylindrical box shape.
2. The shape and structure of the first stopper are not particularly limited as long as the first stopper is inserted into an opening such as a hole, a groove, or a notch formed in the frame body and is locked in the protruding position at the periphery of the opening. .
3. The second retaining member is formed by integrally molding the fixed portion and the protruding portion with an elastic resin or the like, as long as the posture is changed to a position that can be inserted from the through hole together with the frame by elastic deformation of the protruding portion. It may be something.
4. It may be an embedded lighting fixture that is installed by being inserted into a through-hole formed in a fixed plate whose surface is fixed along the vertical direction, such as an interior wall plate.
5. The shape of the reflector is not limited to a circle in a plan view, but may be a polygon or an ellipse in a plan view.
6. The mounting structure of the reflector to the frame may be a structure in which a leaf spring fixed to the frame is engaged and disengaged from a through-hole formed in the reflector, and is detachably mounted.
[0036]
Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional front view. FIG. 2 is a partially cut-away side view. FIG. 3 is a partial cross-sectional front view in a case where a retainer is provided with a first retainer. FIG. 4 is a first retainer. Side view of main part when retaining specification is used [Fig. 5] (a), (b) and (c) are cross-sectional views of main part explaining the installation method [Fig. 6] Plan view of first retaining member [ FIG. 7 is a side view of the first retaining member. FIG. 8 is a partial cross-sectional front view of a main portion when the retaining specification is provided by the second retaining member. FIG. 10 is a cross-sectional view of a main part illustrating an installation method. FIG. 11 is a perspective view of a second stopper. FIG. 12 is a partial cross-sectional front view showing a comparative example.
DESCRIPTION OF SYMBOLS 1 Frame 1c Outward side surface 2 Flange 3 Reflector 4 First stopper 5 Second stopper 5a Fixed part 5b Projection 6 Opening 7 First mounting part 8 Second mounting part 8a Fixed surface A Fixed plate B Penetration Hole

Claims (2)

The frame (1) is inserted from the through hole (B) to the outside in the radial direction of the through hole of the frame (1) to be inserted from the through hole (B) formed in the fixed plate (A) toward the back surface of the fixed plate. A reflection plate provided with a flange (2) that comes into contact with the front surface side of the fixed plate in a state where the fixing plate is in a diametrically inward direction of the through hole of the frame body (1) from the through hole (B) toward the back surface of the fixed plate. (3) is mounted, and the frame (1) has a front end protruding outward in the radial direction of the through-hole from the peripheral edge of the through-hole (B) on the back side of the fixing plate. An embedded lighting fixture to which a stopper (4, 5) for preventing the body (1) from coming out of the through-hole (B) is attached, wherein an opening (6) formed in the frame (1) is provided. A first detachable stopper (4) which is inserted into the opening and locked on the periphery of the opening in the protruding position; The frame (1) is fixed to a mounting portion (7) and a fixed position of the frame (1) and urged to return to the protruding posture, and is elastically displaced against the urging force. And a second mounting portion (8) to which a second stopper (5) whose posture is changed to a posture that can be inserted from the through hole (B) is provided.
The second retaining member (5) has a fixing portion (5a) fixed to a fixing surface (8a) formed on the frame body (1), and a radially outer portion of the fixing portion (5a). A protruding portion (5b) protruding in a holding posture is formed integrally with an elastic material, and is configured to be inserted together with the frame (1) from the through hole (B) by elastic deformation of the protruding portion (5b). And the first mounting portion (7) and the second mounting portion (8) are arranged up and down so as to be aligned with each other in a circumferential direction of the through hole, and the fixing surface (8a) is fixed to the second mounting portion. (2) The fixing portion (5a) of the retaining member (5) is located at a position where the first retaining member (4) is locked in the protruding position, more than the radially outward side surface (1c) of the peripheral edge of the opening. An embedded lighting device which is disposed so as to be inserted into the through hole radially inward and fixed . It said second retaining member (5) is embedded lighting instrument of claim 1 wherein the prevent rotation engages said the opening (6).

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