JP5339607B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture for indirect lighting that is embedded in a ceiling and used by being connected in the longitudinal direction.

2. Description of the Related Art Conventionally, there is a lighting fixture for indirect illumination in which light from a light source such as a fluorescent lamp is blocked to avoid direct light and reflected on a ceiling or a wall to make indirect light (for example, see Patent Document 1).
As shown in FIG. 13, the luminaire described in Patent Document 1 includes a fixture main body 101 on which a straight fluorescent lamp 100 is mounted, and a fixture main body 101 sandwiching the fluorescent lamp 100 in a direction perpendicular to the wall surface 104. And the reflector 102 provided on the lower surface of the fixture main body 101 and projecting from the end face on the reflector 102 side of the fluorescent lamp 100 in the direction perpendicular to the wall surface 104 and below the fixture main body 101 and the fluorescent lamp 100 And a light-shielding cover 103 covering the surface. An upper reflecting plate 105 that reflects the light of the fluorescent lamp 100 upward and a lower reflecting plate 106 that reflects downward are provided facing the fluorescent lamp 100 at a position ahead of the cover 103.

  Thus, the upward illumination illuminates the upper side with the irradiation light from the fluorescent lamp 100 and the reflected light reflected upward by the upper reflecting plate 105. Further, the downward illumination is such that the cover 103 blocks the direct light downward from the fluorescent lamp 100 and illuminates only with the reflected light reflected downward by the lower reflector 106.

JP 2007-134174 A (FIG. 1)

  However, when the lighting apparatus described in Patent Document 1 described above is used by being connected in the longitudinal direction, there is a problem that direct light from the fluorescent lamp 100 leaks between adjacent lighting apparatuses, which is not preferable in appearance. It was.

  The present invention has been made in order to solve the conventional problems, and when using the luminaires connected in the longitudinal direction, the luminaire can prevent light from directly leaking between adjacent luminaires. The purpose is to provide.

  The lighting fixture of the present invention includes a long plate-shaped first side plate and a second side plate, and a long plate-shaped top plate that connects upper ends of both side plates, and the first side plate is used as a wall surface. A long box-shaped instrument body with an opening on the bottom surface that is embedded in the ceiling surface, and a straight tube fluorescent lamp attached to the socket mounting bracket attached to the first side plate are detachable. And a reflector that is provided in a space between the top plate and the second side plate and the fluorescent lamp inside the instrument body and diffuses and reflects light from the fluorescent lamp downward And a light shielding plate that is provided on the first side plate and protrudes from an end surface on the reflection plate side of the fluorescent lamp in a direction perpendicular to the wall surface and covers the lower side of the fluorescent lamp, A lighting fixture connected in a direction, said fixture Each end plate is provided at both ends in the longitudinal direction of the body, the edge of at least one end plate of said end plate adjacent, and has a structure in which a protruding piece that protrudes into said longitudinal direction.

  With this configuration, the fluorescent lamp is detachably attached to the socket of the socket mounting bracket attached to the first side plate of the instrument body. Above the fluorescent lamp is a top plate of the instrument body, and from above to the front is a reflector that reflects the light of the fluorescent lamp downward. Below the fluorescent lamp is a light-shielding plate that protrudes to the front of the fluorescent lamp and can be rotated. And since the end plate is provided at both ends in the longitudinal direction of the instrument body, and the protruding piece projecting in the longitudinal direction is provided at the edge of at least one of the adjacent end plates, the instrument body is connected in the longitudinal direction. In use, it is possible to improve the appearance by preventing light from leaking between adjacent instrument bodies.

Moreover, the lighting fixture of this invention has the structure which provided the packing which presses the said protrusion piece of the said end plate in the edge part of the said light-shielding plate .

  With this configuration, it is possible to reliably prevent light leakage by covering the protruding pieces with packing, and to prevent the adjacent end plates from separating by pressing the protruding pieces with packing. .

  In the present invention, since the end plate is provided at both ends in the longitudinal direction of the instrument body, and the protruding piece projecting in the longitudinal direction is provided at the edge of at least one of the adjacent end plates, the instrument body is disposed in the longitudinal direction. When used in connection with a lighting fixture, it is possible to provide a lighting fixture that has the effect of preventing the leakage of light from between adjacent fixture bodies and improving the appearance.

Sectional drawing which shows the state using the lighting fixture concerning embodiment of this invention. Sectional drawing of the lighting fixture concerning embodiment of this invention Exploded perspective view of lighting fixture The perspective view of the lighting fixture seen from the 2nd side plate side The perspective view of the lighting fixture seen from the 1st side plate side (A) is a front view of the socket mounting bracket, (B) is a plan view seen from the B direction in (A), (C) is a bottom view seen from the C direction in (A), and (D) is (A). Side view seen from middle D direction, (E) is (A) Side view seen from middle E direction Cross section of socket mounting bracket Sectional drawing which shows the positional relationship of a light-shielding plate and a socket mounting bracket Sectional drawing which shows the attachment position of the end plate provided in the edge part of the instrument main body (A) is a perspective view showing a state in which the appliance main body of an adjacent lighting fixture is approached, (B) is a perspective view showing a state in which adjacent appliance main bodies are connected, and (C) corresponds to the protruding piece of the end plate. The perspective view which shows the case where packing is provided, (D) is a perspective view which shows the state which connected the instrument main body and closed the light-shielding plate (A) is a front view of the left end plate, (B) is a bottom view as seen from the B direction in (A), (C) is a side view as seen from the C direction in (A), and (D) is a perspective view. (A) is a front view of the right end plate, (B) is a bottom view seen from the B direction in (A), (C) is a side view seen from the C direction in (A), and (D) is a perspective view. Cross-sectional view of a conventional indirect lighting fixture

Hereinafter, the lighting fixture of 1st Embodiment of this invention is demonstrated using drawing. In the following description, the vertical direction in FIG. 1 is defined as the vertical direction.
As shown in FIG. 1, the luminaire 10 according to the embodiment of the present invention can be used as indirect illumination by being embedded in a ceiling 12 along the wall 11 of a passage or hallway and connected in the longitudinal direction.

  As shown in FIG.2 and FIG.3, it has the elongate plate-shaped top plate 23 which connects the upper end part of the 1st side plate 21 and the 2nd side plate 22 of a long plate shape, and both the side plates 21 and 22. As shown in FIG. The instrument main body 20 having an open bottom surface embedded in the ceiling surface 12 with the first side plate 21 in contact with the wall surface 11 is provided.

  As shown in FIGS. 2 to 5, the instrument body 20 is provided with a first side plate 21, a second side plate 22, and a top plate 23 that connects the upper ends of the side plates 21, 22 at a predetermined interval. It is attached to the plate 26 and held in a U-shaped cross section. The length of the instrument body 20 in the longitudinal direction is formed in a box that substantially matches the length of the fluorescent lamp 32 in the longitudinal direction, and from a ceiling surface (not shown) located above the ceiling surface 12. It is suspended by a plurality of hanging bolts 13 and is embedded in the ceiling surface 12.

  Inside the instrument body 20, a socket mounting bracket 30 for attaching a pair of sockets 31, 31 to which a straight fluorescent lamp 32 is detachably attached is attached to the inner surface of the first side plate 21. In addition, in a space between the top plate 23 and the second side plate 22 and the fluorescent lamp 32, a reflecting plate 24 that diffuses and reflects the light of the fluorescent lamp 32 downward is provided. Further, the lower end portion of the first side plate 21 protrudes beyond the end surface 321 of the fluorescent lamp 32 on the reflecting plate 24 side in a direction perpendicular to the wall surface 11 (hereinafter referred to as “horizontal direction”). A light-shielding plate 25 is provided to cover the lower side.

In the space between the reflector plate 24 and the top plate 23, a terminal block connected to a commercial power source wired behind the ceiling and supplied with power, a lighting device connected and wired to the terminal block, etc. It is attached to the lower surface of the plate 23 and accommodated. The socket 31 is connected to the lighting device and receives power supply.
Therefore, the electric power from the commercial power source is supplied to the lighting device of the lighting fixture 10 through the terminal block, and further sent to the socket 31 to light the fluorescent lamp 32.

As shown in FIGS. 6 and 7, the socket mounting bracket 30 includes a vertical plate-shaped first mounting plate 33 and a horizontal direction from the upper end of the first mounting plate 33 toward the second side plate 22. A second mounting plate 34 extending to the second side plate 22 and an extending portion 35 extending downwardly from the lower end portion of the first mounting plate 33 toward the second side plate 22.
The first mounting plate 33 is screwed (screw 333) to the first side plate 21 in screw holes 332 provided at predetermined intervals.

  The second mounting plate 34 is provided over the entire length of the socket mounting bracket 30 and is substantially the entire length of the lighting fixture 10. Both end portions in the longitudinal direction of the first mounting plate 33 are bent vertically in the direction of the second side plate 22 along the vertical folding line 331 to form a socket mounting portion 36 for mounting the socket 31. The fold line 331 is provided slightly inside (for example, about several mm) from both end faces of the second mounting plate 34 that is the entire length of the socket mounting bracket 30. As a result, the socket mounting portion 36 faces at a predetermined interval so as to mount the socket 31 at a position where the fluorescent lamp 32 is held.

  The extension portion 35 of the socket mounting bracket 30 is bent vertically upward from a support plate 351 provided obliquely forward and downward from the lower end portion of the first mounting plate 33 and a bending point 353 at the tip of the support plate 351. And a locking plate 352. The support plate 351 and the locking plate 352 are provided between the pair of socket mounting portions 36 and 36, and are slightly shorter (for example, about several mm) than the length of the first mounting plate 33. Since the extending portion 35 is formed by bending a metal plate and is provided over substantially the entire length of the instrument body 20, the light of the fluorescent lamp 32 does not leak to the outside from the extending portion 35.

  As shown in FIGS. 2 and 3, the reflector 24 is made of a metal plate, and has a flat horizontal portion 241 provided at the upper end thereof, and a lower side of the horizontal portion 241 in a substantially circular arc shape in cross section. And a drooping portion 243 extending downward from the lower end of the bending portion 242. The horizontal portion 241 is attached to the lower surface of the second mounting plate 34 of the socket mounting bracket 30 with screws 244. The inner surface of the reflector 24 facing the fluorescent lamp 32 is painted white to reflect light. For example, fine irregularities and the like are provided on the inner surfaces of the curved portion 242 and the hanging portion 243 so that incident light is diffused and reflected.

  A non-reflective member 245 is attached to the lower end portion of the hanging portion 243 of the reflecting plate 24. The non-reflective member 245 is painted with, for example, frosting, and absorbs light. Thereby, the difference in brightness between the portion darkened by the socket 31 and the bright portion between the sockets 31 and 31 is reduced.

An attachment frame 40 that covers the space between the second side plate 22 and the ceiling surface 12 is attached below the second side plate 22 so as to be continuous with the lower end portion of the non-reflective member 245. A locking piece 41 extending horizontally forward is provided at the lower end of the mounting frame 40, and the upper surface of the locking piece 41 contacts the lower surface of the ceiling surface 12.
Thereby, the space between the second side plate 22 and the ceiling surface 12 is covered without a gap.

As shown in FIG. 8, the light shielding plate 25 is provided over substantially the entire length of the lighting fixture 10 by bending a metal plate. The light shielding plate 25 includes a planar light shielding portion 251 that blocks light from the fluorescent lamp 32, a front end portion 252 formed by folding the front end portion of the light shielding portion 251 at a right angle, and further folding the tip 180 degrees, and the light shielding portion 251. A support portion 253 whose upper end is folded 180 degrees upward, and a locking portion 254 where the front end of the support portion 253 is bent up at a right angle. The rear end portion of the support portion 253 (the first side plate 21 side end portion) is attached to the lower end portion of the first side plate 21 via a hinge 255 that is an attachment portion with the first side plate 21. A plurality of (for example, three) hinges 255 are provided at predetermined intervals in the longitudinal direction.
Thereby, the light shielding plate 25 is supported so as to be rotatable in the vertical direction with respect to the first side plate 21.

  A spring member 27 is attached to the locking portion 254 of the light shielding plate 25 with a screw 271. The spring member 27 is a member for holding the light shielding plate 25 in the closed state (the state shown in FIG. 8) by rotating the light shielding plate 25 upward by the extending portion 35 of the socket mounting bracket 30. In a state where the light shielding plate 25 is closed, the bending point 353 of the extending portion 35 abuts on the upper surface of the support portion 253 of the light shielding plate 25, and the upper end of the locking portion 352 is held by the spring member 27. It is locked so as not to rotate downward.

  Accordingly, when the light shielding plate 25 is closed when the lighting apparatus 10 is used, the bending point 353 of the extending portion 35 is in contact with the light shielding plate 25, so that the light from the fluorescent lamp 32 extends with the light shielding plate 25. The light from the fluorescent lamp 32 does not leak from between the protruding portions 35 and from the hinge 255 which is the attachment portion of the first side plate 21 and the light shielding plate 25. In addition, it is also possible to provide a packing between the bending point 353 of the extending portion 35 and the light shielding plate 25 to prevent light leakage more reliably.

  The spring member 27 includes an attachment portion 272 attached to the engagement plate 254 with a screw 271, an engagement portion 273 as one end obtained by bending the tip (upper end) of the attachment portion 272 toward the first side plate 21, A distal end portion 274 formed by bending the distal end of the portion 273 forward (at the second side plate 22 side) at a substantially right angle. The spring member 27 is provided at a plurality of locations (here, three locations (see FIG. 3) corresponding to the position of the hinge 255) at predetermined intervals along the longitudinal direction of the extending portion 35.

  In a state where the light shielding plate 25 is closed, the locking portion 273 of the spring member 27 is held by the locking portion 352 of the extending portion 35 of the socket mounting bracket 30, so that the distal end 274 side of the locking portion 273 is hinged 255. Is located inside a circle R passing through the tip of the locking portion 352. Note that the locking portion 273 is provided at an angle close to the tangent to the circle R so that the locking portion 352 can easily reach the locking portion 273 of the spring member 27 when the light shielding plate 25 is closed.

With reference to FIG. 2, opening and closing of the light shielding plate 25 when the fluorescent lamp 32 is replaced will be described.
When the lighting fixture 10 is used, the light shielding plate 25 is rotated upward about the hinge 255, and the spring member 27 of the light shielding plate 25 is locked by the extending portion 35 of the socket mounting bracket 30. Thereby, the closed state of the light shielding plate 25 is maintained (indicated by a solid line in FIG. 2).
On the other hand, when the light shielding plate 25 is opened downward, the tip of the light shielding plate 25 is pushed downward. As a result, the locking portion 273 of the spring member 27 of the light shielding plate 25 is pushed and elastically deformed by the locking plate 352 of the extending portion 35, and the spring member 27 gets over the locking plate 352 and the light shielding plate 25 opens. (Indicated by a broken line in FIG. 2).

  As shown in FIGS. 9 and 10, end plates 50 are provided at lower ends of the first side plate 21 in the longitudinal direction, which are both longitudinal ends of the instrument body 10. A left end plate 50A is provided at the left end of the first side plate 21, and a right end plate 50B is attached to the right end. In addition, when naming end plate generically, it displays with "end plate 50".

  As shown in FIGS. 11 and 12, each of the end plates 50A and 50B includes abdominal plates 51A and 51B having a flat plate shape with a horizontal upper side, and attachment portions along the vertical sides of the abdominal plates 51A and 51B. 52A and 52B are formed by bending. The attachment portions 52A and 52B are bent inward of the instrument main body 10 in both the left and right end plates 50A and 50B. That is, the left end plate 50A is bent in the right direction and the left end plate 50B is bent in the left direction.

  The belly plates 51A and 51B of the end plates 50A and 50B are provided with screw holes 54A and 54B for connection at corresponding positions. The connection of the end plates 50A and 50B will be described later. For example, the belly plate 51A of the left end plate 50A is provided with an “A” stamp, and the belly plate 51B of the right end plate 50B is provided with a “B” stamp, for example, to prevent erroneous mounting. desirable.

In addition, projecting pieces 53A and 53B are bent along the oblique sides of the clothing plates 51A and 51B. The protruding pieces 53A and 53B are bent in the same direction in both the left and right end plates 50A and 50B. That is, the left end plate 50 </ b> A and the right end plate 50 </ b> B are also bent rightward toward the instrument body 20, for example.
Therefore, in the left end plate 50A, the mounting portion 52A and the protruding piece 53A are bent in the same direction (right direction) (see FIG. 11C), and in the right end plate 50B, the mounting portion 52A and the protruding piece 53A is bent in the opposite direction (see FIG. 12C).

Next, with reference to FIG. 10, the case where the several lighting fixture 10 is connected to a longitudinal direction is demonstrated.
When the adjacent lighting fixtures 10 are connected, the lighting fixtures 10 are arranged in the space for the lighting fixtures provided on the ceiling 12 along the wall 11 (see FIG. 1). Then, as shown in FIG. 10A, with the light shielding plate 25 opened, the abdominal plate 51B of the right end plate 50B of the left luminaire 10 and the left end plate 50A of the right luminaire 10 The abdominal plate 51A is brought into surface contact, and is fastened through attachment screws (not shown) to attachment holes 54A and 54B provided in the abdominal plates 51A and 51B (see FIG. 10B).

  At this time, the protruding piece 53A and the protruding piece 53A protrude so that the protruding piece 53B of the right end plate 50B of the left lighting fixture 10 and the protruding piece 53A of the left end plate 50A of the right lighting fixture 10 overlap without interference. The pieces 53B are shifted and provided. That is, the protruding piece 53B of the right end plate 50B of the left luminaire 10 is bent and formed so as to overlap the outside (lower side) of the protruding piece 53A of the left end plate 50A of the right luminaire 10. Thereafter, the light shielding plate 25 is closed (see FIG. 10D).

  As shown in FIGS. 10C and 10D, it is desirable to provide a packing 55 that presses the protruding piece 53 of the end plate 50 at the end of the light shielding plate 25. Accordingly, it is possible to prevent light from leaking from the vicinity of the protruding piece 53 and to press the protruding piece 53 to prevent the overlapping protruding pieces 53 from rattling.

  As described above, according to the lighting fixture 10 according to the embodiment of the present invention described above, the end plates 50A and 50B are provided on both ends in the longitudinal direction of the fixture body 20, and the edge portions of the adjacent end plates 50A and 50B are provided in the longitudinal direction. Since the protruding pieces 53A and 53B that protrude are overlapped with each other, the light of the fluorescent lamp 32 is prevented from leaking from between the adjacent tool bodies 20 when the tool body 20 is connected in the longitudinal direction. Appearance can be improved.

  Further, by covering the protruding piece 53 with the packing 55, light leakage can be surely prevented, and by pressing the protruding piece 53 with the packing 55, the adjacent end plates 50A and 50B can be separated. Can be prevented.

  In addition, since the extending portion 35 extending from the socket mounting bracket 30 is provided and the spring member 27 having one end fixed to the light shielding plate 25 is removably locked by the extending portion 35, the light shielding plate 25 can be held closed. Further, the light shielding plate 25 can be opened and closed by detaching the spring member 27 from the extending portion 35. Thereby, the light shielding plate 25 can be opened and the fluorescent lamp 32 can be easily replaced.

  Further, since the extending portion 35 of the socket mounting bracket 30 has a structure that does not leak the light of the fluorescent lamp 32 to the outside, the extending portion 35 of the socket mounting bracket 30 that holds the light shielding plate 25 in a closed state is used. , Light can be prevented from leaking.

  Furthermore, since the hinge 255 as the attachment portion has a structure that does not allow light to pass therethrough, it is possible to prevent light from leaking from the hinge 255.

In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the above-described embodiment, the case where the left and right end plates 50A and 50B of the lighting fixture 10 are provided with the protruding pieces 53A and 53B, respectively, but the protruding piece 53 is provided only on one end plate 50, It is also possible to cover the other end plate 50 with the protruding piece 53.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Wall surface 12 Ceiling surface 20 Appliance main body 21 1st side plate 22 2nd side plate 23 Top plate 24 Reflecting plate 25 Light-shielding plate 31 Socket 32 Fluorescent lamp 50 End plate 53 Projection piece 55 Packing

Claims (2)

A long plate-shaped first side plate and a second side plate, and a long plate-shaped top plate that connects upper ends of both side plates, the first side plate being brought into contact with the wall surface to the ceiling surface A long box-shaped instrument body with an open bottom surface to be embedded;
A socket that is attached to a socket mounting bracket attached to the first side plate and in which a straight tube fluorescent lamp is detachably mounted;
A reflecting plate that is provided in a space between the top plate and the second side plate and the fluorescent lamp inside the instrument body and diffuses and reflects light from the fluorescent lamp downward;
A light-shielding plate provided on the first side plate and projecting from an end surface on the reflection plate side of the fluorescent lamp in a direction perpendicular to the wall surface and covering a lower side of the fluorescent lamp,
A lighting fixture that is used by connecting the fixture body in the longitudinal direction,
End plates are provided at both ends in the longitudinal direction of the instrument body,
A lighting fixture, wherein a projecting piece projecting in the longitudinal direction is provided at an edge of at least one of the adjacent end plates. The lighting fixture according to claim 1 , wherein a packing for pressing the protruding piece of the end plate is provided at an end of the light shielding plate .

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