JP7058517B2 - Mounting brackets and lighting equipment using them - Google Patents

Description

The present invention relates to a mounting bracket for a lighting fixture installed on the ceiling of a system and a lighting device using the same.

Conventionally, when fixing a lighting fixture to a system ceiling in which a T-bar is assembled in a grid pattern, it has been proposed to use a mounting member hooked from the upper side of the T-bar on the end surface of the fixture body (see, for example, Patent Document 1). The lighting fixture of Patent Document 1 has a fixture attached to the upper surface of the fixture body, and a locking tool fixed by a screw from the upper surface of the fixture and locked on a T-bar.

Japanese Unexamined Patent Publication No. 10-10636

However, since the locking tool of Patent Document 1 is fixed to the upper surface of the mounting tool by a screw, the screw may loosen due to the vibration or load of the device. At this time, it is conceivable that the locking tool may come off the T-bar and the luminaire may fall.

The present invention has been made to solve the above-mentioned problems, and to provide a mounting bracket capable of surely preventing a lighting fixture from falling from a T-bar and a lighting device using the same. With the goal.

The mounting bracket of the present invention is a mounting bracket for attaching a lighting fixture to a bar material, and is a main body fitting that holds the lighting fixture on the fixture mounting surface and has an opening on the side surface side, and a main body fitting that is inserted into the opening. The main body metal fittings are supported from the equipment mounting surface side by a support member connected to the mounting surface side, and the main body metal fittings are provided with a mounting member mounted on the upper part of the bar material, and the main body metal fittings are formed with the equipment mounting surface. It has a flat plate portion extending in one direction and a side surface portion provided at both ends in the longitudinal direction of the flat plate portion to form an opening and projecting toward the fixture mounting surface side, and the side surface portion is mounted from a side edge. A main body that protrudes toward the placing member and has a protruding piece whose lower end is placed on the upper part of the bar material, and the mounting member is provided with a support member at the upper end and is positioned laterally on the upper part of the bar material. It has a portion and a side wall portion that protrudes from the side end of the main body portion to the main body metal fitting side and the lower end thereof is placed on the upper portion of the bar material .

According to the mounting bracket of the present invention and the lighting device using the same, the main body bracket is supported from the fixture mounting surface side, and the mounting member is provided to be mounted on the upper part of the bar material. Is applied with a force in the direction of pressing from the main body metal fittings to the T-bar due to the load of the lighting equipment. Therefore, even if the connection between the main body fitting and the mounting member is released, the main body fitting remains supported by the mounting member, so that the lighting fixture can be reliably prevented from falling. can.
be able to.

It is a perspective view which shows the appearance that the lighting apparatus which concerns on Embodiment 1 of this invention is attached to the ceiling. It is an exploded perspective view of the lighting apparatus of FIG. It is sectional drawing which shows an example of the bar material to which the lighting apparatus of FIG. 1 is attached. It is a perspective view which shows an example of the mounting bracket which concerns on Embodiment 1 of this invention. It is an exploded perspective view which shows the periphery of the side end of the mounting bracket of FIG. It is a side view which shows the periphery of the side end of the mounting bracket of FIG. It is a figure which shows the operation example when the lighting equipment which concerns on Embodiment 1 of this invention is attached to a T bar. It is a figure which shows the operation example when the lighting equipment which concerns on Embodiment 1 of this invention is attached to a T bar.

Embodiment 1.
Hereinafter, embodiments of the luminaire of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which the lighting device according to the first embodiment of the present invention is attached to the ceiling, and FIG. 2 is an exploded perspective view of the lighting device of FIG. The lighting device 1 of FIGS. 1 and 2 is installed on the system ceiling in which the bar material TB is assembled, and includes a lighting fixture 1A that emits light and a mounting bracket 30 that holds the lighting fixture 1A. ..

The lighting fixture 1A has a fixture main body 10 and a light source unit 20 housed in the fixture main body 10. The instrument body 10 has a long shape extending in one direction (arrow X direction), and has a concave accommodating portion 11 in which a part of the light source unit 20 is accommodated and an optical axis direction from the opening peripheral edge of the accommodating portion 11. A reflecting portion 12 extending so as to spread in the (arrow Z direction) and an end plate 13 provided at a side end in the longitudinal direction (arrow X direction) are provided. The accommodating portion 11 is formed in a substantially rectangular cross section, and a light source unit 20 is attached to the opening side of the accommodating portion 11. The accommodating portion 11 accommodates a terminal block (not shown), an electric wire for connecting each electric component, and the like. Further, in the storage recess formed in the storage portion 11, a fixing tool 2 such as a bolt connecting the instrument main body 10 and the mounting bracket 30 is housed so that the parts in the storage portion 11 do not interfere with each other. It is stored in. The shape of the instrument main body 10 is formed to have a substantially trapezoidal cross section as a whole, but the shape is not limited to this, and various shapes may be adopted, for example, a substantially rectangular parallelepiped cross section may be used.

The light source unit 20 has a long shape extending in one direction (arrow X direction), and irradiates light from the opening side of the instrument main body 10. The light source unit 20 includes, for example, an LED substrate in which LEDs that emit light are arranged side by side in the longitudinal direction (arrow X direction), a frame 21 to which a light emitting substrate is mounted, and a cover 22 that covers the LED substrate and the power supply unit. are doing. Further, a power supply device (dimming control device) 23 having a built-in inverter circuit or the like for supplying electric power to the light source unit 20 is attached to the frame 21, and the power supply device 23 is housed in the housing unit 11. .. Although the case where a light source made of an LED is used for the light source unit 20 is illustrated, a fluorescent lamp, an organic EL, or the like may be used.

The above-mentioned lighting fixture 1A is fixed to the bar material TB by using the mounting bracket 30. The bar material TB is a so-called T-bar, which extends in one direction (arrow X direction) and is provided on the ceiling so as to be parallel to each other. A ceiling panel is attached between the bar members TB, and the above-mentioned lighting fixture 1A is arranged.

FIG. 3 is a cross-sectional view showing an example of a bar material TB to which the lighting device of FIG. 1 is attached. The bar material TB of FIG. 3 includes a web BW extending in the vertical direction (arrow Z direction), a head BT provided at the upper end of the web BW and protruding in the width direction (arrow X direction) from the web BW, and the web BW. It has a flange portion BF provided at the lower end. Further, a hook portion BK bent downward is provided between the head portion BT and the flange portion BF.

As shown in FIGS. 1 to 3, when the lighting fixture 1A is installed on the bar material TB, a mounting bracket 30 for attaching the fixture main body 10 to the bar material TB is fixed to the upper surface of the fixture main body 10. Then, the mounting bracket 30 is placed on the head BT of the bar material TB, and the peripheral edge of the reflecting portion 12 is placed on the flange portion BF.

4 is a perspective view showing an example of the mounting bracket according to the first embodiment of the present invention, FIG. 5 is an exploded perspective view showing the periphery of the side end of the mounting bracket of FIG. 4, and FIG. 6 is an exploded perspective view. It is a side view which shows the periphery of the side end of the mounting bracket of FIG. The mounting brackets 30 of FIGS. 1 to 6 include a main body fitting 40 fixed to the instrument main body 10, a mounting member 50 attached to the main body fitting 40 and mounted on the bar material TB, and the mounting bracket 30 having a bar. It has a regulating member 60 that prevents the material TB from coming off upward.

In addition, in FIGS. 1 and 2, a plate portion 31 provided in the longitudinal direction (arrow X direction) of the lighting fixture 1A is attached to the mounting bracket 30, and is connected to the lighting fixture 1A via the plate portion 31. ing. By passing through the plate portion 31 in this way, the lighting fixture 1A can be held more stably. The lighting fixture 1A and the mounting bracket 30 may be directly connected to each other without using the plate portion 31.

The main body metal fittings 40 of FIGS. 4 to 6 are plate-shaped members extending in the lateral direction (arrow Y direction) of the instrument main body 10, and a fixing tool 2 such as a bolt is attached to the bottom of the accommodating portion 11 of the instrument main body 10. Fixed using. The main body metal fitting 40 has a plate-shaped flat plate portion 41, a rib 42 bent upward along the edge portion of the flat plate portion 41 in the longitudinal direction (arrow Y direction), and the flat plate portion 41 in the longitudinal direction (arrow Y direction). It has side surface portions 43 provided at both end ends and bent toward the instrument main body 10.

The flat plate portion 41 has a length straddling between two parallel bar member TBs in the longitudinal direction (arrow Y direction). In the flat plate portion 41, a mounting hole 41a into which the fixture 2 is inserted when connected to the instrument main body 10 is formed substantially in the center in the longitudinal direction (arrow Y direction). Then, the lighting fixture 1A is fixed to the fixture mounting surface 40x of the flat plate portion 41. Further, fixing holes 41b for fixing the mounting member 50 by a fixing tool 32 such as a screw are formed on both ends of the flat plate portion 41.

The rib 42 has a shape in which the edge portion of the flat plate portion 41 is bent, for example, in an orthogonal direction (arrow Z direction) and protrudes in a direction away from the luminaire 1A. Insertion holes 42a into which a part of the mounting member 50 is inserted are formed on both ends of the rib 42 in the longitudinal direction (arrow Y direction).

The side surface portion 43 is formed by bending the side end of the flat plate portion 41 in, for example, an orthogonal direction (arrow Z direction), and an opening 44 is formed downward from the connection portion between the flat plate portion 41 and the side surface portion 43. Has been done. Further, a recess 43a is formed at the lower end of the side surface portion 43, and a protruding piece 43b protruding outward (on the mounting member 50 side) from the side edge of the side surface portion 43 is provided. Further, the rib 42 and the side surface portion 43 improve the rigidity of the flat plate portion 41.

The mounting member 50 supports the main body metal fitting 40 from the instrument mounting surface 40x side, and is mounted on the head (upper) BT of the bar material TB. The mounting member 50 has a main body portion 51 provided so as to face the side surface portion 43, a side wall portion 52 extending from both side edges of the main body portion 51 toward the main body metal fitting 40 side and sandwiching both ends of the flat plate portion 41, and a main body portion. It has a support member 53 extending from the upper end of 51 toward the main body metal fitting 40 side.

The main body portion 51 is arranged so as to face the side surface portion 43, and has a shape protruding from the lower end 52x of the side wall portion 52 toward the bar member TB side (arrow Z direction). The head BT of the bar material TB is inserted between the side surface portion 43 and the main body portion 51 (see FIG. 3). At this time, the main body portion 51 is located on the side surface of the head portion BT of the bar material TB, and cooperates with the side surface portion 43 to restrict the movement of the mounting bracket 30 in the longitudinal direction (arrow Y direction).

Each side wall portion 52 is formed with a semicircular protrusion 52a projecting toward the opposite side wall portion 52, and the protrusion 52a is inserted into the insertion hole 42a of the rib 42. As a result, the mounting member 50 is temporarily fixed to the side end of the main body fitting 40 and is positioned. It should be noted that the case where the side wall portion 52 and the rib 42 are each provided with a protrusion 52a on the side wall portion 52 side and an insertion hole 42a on the rib 42 side as locking portions to be fitted to each other is illustrated. However, it suffices to have a fitting structure, and an insertion hole may be provided on the side wall portion 52 side and a protrusion portion may be provided on the rib 42 side.

Here, when the mounting bracket 30 is placed on the bar material TB, the lower end 52x of the side wall portion 52 is supported on the head BT of the bar material TB. Further, the lower end 52x of the side wall portion 52 is positioned at the same height as the lower end of the protruding piece 43b. Therefore, the protruding piece 43b is also in a state of being supported by the head BT of the bar material TB, similarly to the side wall portion 52.

The support member 53 is formed by being bent from the upper portion of the main body portion 51 toward the main body metal fitting 40 side. The support member 53 is provided between the two side wall portions 52 and is inserted into the opening 44. A gap is formed between the side wall portions 52 on the tip end side of the support member 53, and the width of the tip end side of the support member 53 is smaller than the width of the opening 44. A fixing hole 53a into which a fixture 32 such as a bolt is inserted is formed at the tip of the support member 53, and when the tip of the support member 53 is inserted into the opening 44, the fixing hole 53a is on the main body metal fitting 40 side. It is positioned so as to overlap the fixing hole 41b. Then, the fixing tool 32 is fixed through the fixing hole 41b and the fixing hole 53a, so that the main body metal fitting 40 and the mounting member 50 are connected. At this time, the mounting member 50 is in a state where the main body metal fitting 40 is supported by the support member 53 from the instrument mounting surface 40x side.

The restricting member 60 is attached to the main body fitting 40 and restricts the mounting fitting 30 from moving to the upper side of the bar material TB. The regulating member 60 is, for example, a plate-shaped member having a Z shape, and is provided on a base portion 61 extending in the vertical direction (arrow Z direction) along the side surface portion 43 and one end side of the base portion 61, and is provided on the main body metal fitting 40 side. It has a fixed portion 62 bent in a straight line and a hooking portion 63 provided on the other end side of the base portion 61 and bent toward the mounting member 50 side.

The base portion 61 extends in the vertical direction (arrow Z direction) longer than the side surface portion 43, and when the fixing portion 62 is fixed to the main body metal fitting 40, the hook portion 63 is below the lower ends of the side surface portion 43 and the main body portion 51. It is designed to be located on the side. Further, the base portion 61 is positioned at a position overlapping the recess 43a in the width direction (arrow X direction) of the side surface portion 43. Then, when the restricting member 60 is elastically deformed toward the lighting fixture 1A side (arrow Y direction) at the time of installation, the base portion 61 is inserted between the recesses 43a of the main body fitting 40, so that the recess 43a serves as a guide for the elastic deformation. It is possible to prevent the base 61 from elastically deforming in an unintended direction.

The fixing portion 62 is fixed to the flat plate portion 41 of the main body fitting 40 in a state of being inserted into the opening 44, and a fixing hole 62a for inserting the fixing tool 32 is formed at the tip thereof. Then, the support member 53 and the fixing portion 62 are inserted into the opening 44 in a superposed state, and are fixed to the flat plate portion 41 by the fixing tool 32.

The hook portion 63 has a shape bent so as to project outward on the other end side of the base portion 61, and is hooked on the hook portion BK of the bar material TB at a position below the lower end of the side surface portion 43. (See Fig. 3). As a result, the mounting bracket 30 can be restricted from moving to the upper side of the bar material TB. Although the case where the regulating member 60 is made of a plate-shaped member is illustrated, it is preferable that the regulating member 60 is formed of an elastic material such as a spring material, and the shape formed of the plate material is illustrated, but a wire rod or the like is shown. It may be formed with. Further, although the case where the hook portion 63 is hooked on the hook portion BK is illustrated, the hook portion 63 may be hooked on the lower side of the head BT. In this case, the length of the base portion 61 is such that the tip of the hooking portion 63 is located at the lower end of the head BT.

An example of assembling the mounting bracket 30 will be described with reference to FIGS. 1 to 6. First, the support member 53 of the mounting member 50 and the fixing portion 62 of the regulating member 60 are inserted from the outside of the opening 44 of the main body fitting 40. At this time, the support member 53 moves on the flat plate portion 41, and the two side wall portions 52 move with the rib 42 sandwiched between them. Then, when the mounting member 50 and the regulating member 60 are inserted to predetermined positions, the protrusion 52a of the side wall portion 52 is inserted into the insertion hole 42a of the rib 42, locked, and temporarily fixed. Further, the fixing hole 53a and the fixing hole 62a are positioned on the mounting hole 41a, and the main body metal fitting 40, the mounting member 50, and the regulating member 60 are connected by using the fixing tool 32. In this way, since the main body metal fitting 40, the mounting member 50, and the regulating member 60 are connected by one fixing tool 32, it is possible to improve the efficiency of the assembly work while reducing the number of parts. Further, by temporarily fixing the 42 and the side wall portion 52, work efficiency can be improved.

7 and 8 are schematic views showing how the luminaire with the mounting bracket attached to the luminaire is fixed to the bar material, and the luminaire 1 is attached to the bar material TB with reference to FIGS. 1 to 8. The mounting method is explained. As shown in FIG. 7, the head BT of the bar material TB is positioned between the side surface portion 43 of the lighting device 1 and the main body portion 51, and the lighting device 1 is positioned toward the head BT side of the bar material TB. Moving.

Then, the lower end 52x of the side wall portion 52 of the mounting member 50 hits the head BT of the bar material TB, and the mounting member 50 is mounted on the bar material TB. At this time, the lower end of the protruding piece 43b is also placed on the head BT of the bar material TB, and the main body metal fitting 40 is also supported by the bar material TB. Therefore, the load of the luminaire 1A can be shared by each of the side wall portion 52 and the projecting piece 43b, and the respective loads can be reduced. At this time, the support member 53 of the mounting member 50 is in a state of supporting the lighting fixture 1A and the main body fitting 40 from the fixture mounting surface 40x side of the main body fitting 40. Further, by arranging the side surface portion 43 and the main body portion 51 on the side of the head portion BT of the bar material TB, the movement of the lighting device 1 in the width direction (arrow Y direction) is restricted.

Further, when the lighting device 1 moves to the head BT side of the bar material TB, the hooking portion 63 of the restricting member 60 is elastically deformed so as to spread outward while sliding on the head BT of the bar material TB. At this time, the regulating member 60 is inserted between the recesses 43a of the main body fitting 40 when elastically deformed. As a result, unintentional elastic deformation of the lighting device 1 in the longitudinal direction (arrow Y direction) is suppressed. Then, when the lower end 52x of the side wall portion 52 is located on the bar material TB, the hooking portion 63 is hooked on the hook portion BK of the bar material TB. In this way, by catching the hooking portion 63 on the bar material TB, it is possible to prevent the lighting device 1 from coming off in the upward direction.

According to the above embodiment, since the mounting member 50 is assembled so as to support the main body metal fitting 40 from the instrument mounting surface 40x side, even if the fixture 32 comes off, the state of being supported by the support member 53 is maintained. maintain. As a result, even if the fixture 32 comes off, the lighting fixture 1A can be prevented from falling.

Further, the mounting member 50 is to be assembled efficiently by temporarily fixing the mounting member 50 before connection by the fixing tool 32 by engaging the protrusion 52a of the side wall portion 52 with the insertion hole 42a of the rib 42. Can be done. Further, since the side wall portion 52 is engaged so as to sandwich the flat plate portion 41, it is possible to suppress deformation or breakage due to a load in the longitudinal direction (arrow X direction) of the lighting fixture 1A due to vibration or the like.

Further, by inserting the support member 53 and the fixing portion 62 into the opening 44 of the main body metal fitting 40 and assembling, only one fixing tool 32 is required, the number of parts can be reduced, and the assembling is efficient. It can be carried out. Further, since the support member 53 is inserted into the opening 44, even if the fixture 32 is removed, the support member 53 restricts the movement of the main body metal fitting 40 in the width direction (arrow X direction), and the main body. It is possible to prevent the metal fitting 40 and the support member 53 from coming off easily.

The embodiment of the present invention is not limited to the above embodiment, and various modifications can be made. For example, it has been explained that the end portion of the side wall portion 52 and the end portion of the projecting portion 213c have the same height, but the height does not have to be the same, and the end portion of the side wall portion 52 is the bar material TB first. It may be in contact with the head.

Further, although the explanation has been given to inserting the support member 53 and the fixing portion 62 of the mounting member 50 into the opening 44 of the main body metal fitting 40, only the support member 53 of the mounting member 50 may be inserted, and the restricting member 60 is a side wall. It may be provided inside the portion 52.

Further, the protrusion 52a may have a shape that engages with the insertion hole 42a as well as a semicircular protrusion. Further, not only the engagement by the protrusion and the opening, but also the engagement by the claw shape and the opening may be used, and both may be the engagement by the claw shape.

1 Lighting device, 1A Lighting device, 2 Fixture, 10 Fixture body, 11 Accommodation part, 12 Reflection part, 13 End plate, 20 Light source unit, 21 frame, 22 Cover, 23 Dimming control device, 30 Mounting bracket, 31 plate Part, 32 Fixture, 40 Main body bracket, 40x fixture mounting surface, 41 flat plate part, 41a mounting hole, 41b fixing hole, 42 rib, 42a insertion hole, 43 side surface part, 43a recess, 43b protrusion piece, 44 opening, 50 mounting Placement member, 51 main body, 52 side wall, 52a protrusion, 52x lower end, 53 support member, 53a fixing hole, 60 restricting member, 61 base, 62 fixing part, 62a fixing hole, 63 hooking part, BF flange part, BK Hook part, BT head, BW web, TB bar material.

Claims (7)

A mounting bracket that attaches a lighting fixture to a bar material.
The main body metal fitting that holds the lighting fixture on the fixture mounting surface and has an opening on the side surface side,
The main body fitting is supported from the device mounting surface side by a support member inserted into the opening and connected to the device mounting surface side of the main body metal fitting, and is placed on the upper portion of the bar material. Members and
Equipped with
The main body metal fittings
A flat plate portion on which the instrument mounting surface is formed and extends in one direction,
A side surface portion provided at both ends in the longitudinal direction of the flat plate portion, the opening is formed, and the side surface portion projects toward the instrument mounting surface side.
Have,
The side surface portion
It has a protruding piece that protrudes from the side edge toward the previously described placement member and the lower end is placed on the upper portion of the bar material.
The above-mentioned placing member is
The support member is provided at the upper end, and the main body portion positioned laterally on the upper portion of the bar material and the main body portion.
A side wall portion that protrudes from the side end of the main body portion to the main body metal fitting side and whose lower end is placed on the upper portion of the bar material.
Mounting bracket with . The mounting bracket according to claim 1 , wherein the main body fitting is provided with a rib protruding in a direction away from the lighting fixture at the edge portion in the lateral direction of the flat plate portion. The mounting bracket according to claim 2 , wherein the side wall portion and the rib are provided with locking portions that are fitted to each other. A mounting bracket that attaches a lighting fixture to a bar material.
The main body metal fitting that holds the lighting fixture on the fixture mounting surface and has an opening on the side surface side,
The main body fitting is supported from the device mounting surface side by a support member inserted into the opening and connected to the device mounting surface side of the main body metal fitting, and is placed on the upper portion of the bar material. Members and
Equipped with
The main body metal fittings
A flat plate portion on which the instrument mounting surface is formed and extends in one direction,
A side surface portion provided at both ends in the longitudinal direction of the flat plate portion, the opening is formed, and the side surface portion projects toward the instrument mounting surface side.
Have,
The above-mentioned placing member is
The support member is provided at the upper end, and the main body portion positioned laterally on the upper portion of the bar material and the main body portion.
A side wall portion that protrudes from the side end of the main body portion to the main body metal fitting side and whose lower end is placed on the upper portion of the bar material.
Have,
A rib protruding in a direction away from the luminaire is provided on the lateral edge of the flat plate portion.
A mounting bracket provided with a locking portion that fits each other on the side wall portion and the rib. A regulation that is attached to the main body fitting and has a hooking portion that is hooked on the bar material at a position protruding below the lower end of the side surface portion, and restricts the movement of the mounting bracket to the upper side of the bar material. The mounting bracket according to any one of claims 1 to 4 , further comprising a member. The mounting bracket according to any one of claims 1 to 5 .
Lighting fixtures held by the mounting bracket and
Lighting equipment equipped with. The luminaire according to claim 6 , wherein the luminaire has a storage recess for accommodating a fixture for connecting to the mounting bracket.

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