JP2014112503A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify construction work.SOLUTION: A fixture body 1 is moved in such a manner that head parts 123A of bolts 123 protruding from each of the connection plates 12 come right above first insertion grooves 413 of a supporting member 4. Then, the head parts 123A of the two bolts 123 are inserted into the first insertion grooves 413 respectively when the fixture body 1 is lowered, and furthermore, a cylindrical part 123C of each bolt 123 is inserted into a second insertion groove 414 by passing through the first insertion groove 413. That is, by the two bolts 123 fixed at the fixture body 1 being locked at the peripheral edges of the two second insertion grooves 414 provided at a pair of fitting parts 412 of th supporting member 4 separately, the fixture body 1 is suspended and supported at the supporting member 4. Thus, the fixture body 1 can be supported by the supporting member 4 just by inserting the bolts 123 from the first insertion grooves 413 to the second insertion grooves 414, construction work for installing the lighting fixture to the ceiling can be simplified.

Description

  The present invention relates to a lighting fixture.

  As a conventional lighting fixture, there is a lighting fixture that has a relatively large output and is installed on a high ceiling such as a hall of a building or a gas station (see, for example, Patent Document 1). The lighting fixture described in Patent Document 1 is installed on the ceiling by being fixed using two bolts and nuts to two suspension bolts installed on the ceiling in advance.

JP 2012-129172 A

  However, in the above-described conventional example, it is difficult to perform the construction work by one person because the instrument body must be fixed to the suspension bolt while being supported by the hand.

  The present invention has been made in view of the above problems, and an object thereof is to simplify construction work.

  The lighting fixture of the present invention includes a fixture main body that holds a light source and a power supply device, and a support member that suspends and supports the fixture main body, and the support member is fixed to a construction material, and the fixed A plurality of arm portions protruding from the portion, and the arm portion is provided with a locked portion to which a plurality of locking protrusions provided on the instrument body are detachably locked. Features.

  In this lighting fixture, the locked portion preferably locks the locking protrusion so as to be rotatable.

  In this lighting apparatus, the locking portion includes a rod-shaped shaft portion and a head portion that is larger than the shaft portion and is provided at the tip of the shaft portion, and the locked portion includes the head portion. It is preferable to have the 1st insertion groove which has the dimension which can be inserted, and the 2nd insertion groove which has the dimension which the above-mentioned head cannot insert, and has the dimension which can insert the above-mentioned shaft part, and was connected to the 1st insertion groove.

  In this lighting fixture, the shaft portion may be cylindrical, and the second insertion groove may be formed in a polygonal shape in which the shape of the shaft portion viewed from the axial direction is in contact with the shaft portion at a plurality of sides. preferable.

  In this lighting apparatus, it is preferable that the lighting device includes a retaining member that is provided on the support member and that displaces between a position that closes the first insertion groove and a position that opens the first insertion groove.

  In this lighting fixture, the fixture body is rotatably supported with respect to the support member in a state where the locking portion is inserted into the second insertion groove, and the retaining portion interferes with the fixture body. And it is preferable that the control part which controls the rotation range of the said instrument main body is provided.

  Since the lighting fixture of the present invention can attach the fixture main body to the support member by locking the locking projection provided on the fixture main body to the locked portion provided on the arm portion of the support member, There is an effect that the work can be simplified.

It is a top view of the principal part in embodiment of the lighting fixture which concerns on this invention. The same as above, (a) is a side view, (b) is a bottom view, and (c) is another side view. The same as above, (a) is a top view, (b) is a side sectional view, and (c) is a side view. The same as above, (a) is a perspective view seen from above, (b) is a perspective view seen from below. It is the perspective view seen from the same as the above. The power supply block in the same as above is shown, (a) is a front view, (b) is a right side view, and (c) is a rear view. The support member in the above is shown, (a) is a top view, (b) is a side view, (c) is a bottom view, and (d) is another side view. The retaining member in the above is shown, (a) is a top view, (b) is a side view, (c) is another side view, and (d) is a perspective view. It is a top view which shows the state which attached the same to the inclination ceiling. It is a side view of the support member in the same as the above. It is the top view which abbreviate | omitted a part of the 2nd penetration groove and bolt in the same as the above.

  Hereinafter, embodiments in which the technical idea of the present invention is applied to a lighting device for a high ceiling will be described in detail with reference to the drawings. However, the lighting fixture to which the technical idea of the present invention is applicable is not limited to the high ceiling.

  As shown in FIGS. 2 to 5, this embodiment includes an instrument body 1, three lamps 2, a power supply block 3, a support member 4, and the like.

  The three lamps 2 have the same structure, and are a bottomed cylindrical lamp body 20 having an open bottom surface, a cover 21 that closes the opening surface of the lamp body 20, and a number of radiating fins 22 provided on the lamp body 20. Etc. (see FIGS. 3 and 4).

  A light source (not shown) is disposed on the inner bottom surface of the lamp body 20. The light source is composed of a plurality of light emitting diode (LED) chips mounted on a substrate, and a sealing member made of a synthetic resin (for example, a silicone resin) that has translucency and is mixed with a fluorescent material. . That is, a part of the light emitted from the LED chip (for example, blue light) is wavelength-converted with a fluorescent material, and the wavelength-converted light (for example, yellow light) and the light that has not been wavelength-converted (blue light) are mixed. As a result, the light emitted from the light source becomes white light as a whole.

  The cover 21 is formed in a disc shape from a translucent material such as quartz glass or acrylic resin, and is attached to the lower surface of the lamp body 20.

  The heat radiating fins 22 are thin plate-like, and are erected at a predetermined interval from the upper surface and the side surface excluding the lower surface of the lamp body 20. The lamp body 20 and the heat radiating fins 22 are integrally formed by aluminum die casting.

  The power supply block 3 includes six power supply units (power supply devices) 30, one control unit (control device) 31, an attachment member 33, and the like.

  The six power supply units 30 supply direct current power to one lamp 2 as a pair of the two power supply units 30. For example, the light source of one lamp 2 is divided into two blocks, and DC power is supplied to one block from one power supply unit 30. Each power supply unit 30 includes, for example, a power supply circuit for converting AC power supplied from a commercial AC power source into DC power, and is housed in a case 300 made of metal and a rectangular parallelepiped shape. However, the two power supply units 30 that form a pair may be the same, or may have different rated outputs depending on each block of the light source.

  The case 300 is provided with a narrow projecting piece 301 projecting along the longitudinal direction from the edge of one side surface in the longitudinal direction. On the protruding piece 301, three terminal portions 302 used for electrical wiring with the terminal block 32, the control unit 31, and each lamp 2 are arranged. Further, a screw insertion hole (not shown) through which a mounting screw 34 described later is inserted passes through both ends of the projecting piece 301. Further, the case 300 is provided with two projecting pieces 304 projecting from the edge of the other side surface in the longitudinal direction along the longitudinal direction. A screw insertion hole (not shown) through which the mounting screw 34 is inserted passes through each projecting piece 304 one by one.

  Of these six power supply units 30, two power supply units 30 forming a pair are attached to one attachment member 33. As shown in FIG. 6, the mounting member 33 includes a rectangular fixed piece 330 fixed to the instrument body 1, a flat mounting plate 331 erected from the upper surface of the fixed piece 330, and a fixed piece from the upper end of the mounting plate 331. 330 and a top plate 332 bent in parallel.

  The mounting plate 331 has four screw holes 331A and 331B penetrating therethrough for one power supply unit 30, and mounting screws 34 inserted into the four screw insertion holes of one power supply unit 30 are respectively connected to the screw holes 331A. One power supply unit 30 is attached to the surface of the mounting plate 331 by being screwed. Similarly, one power supply unit 30 is attached to the back surface of the mounting plate 331 by fixing the mounting screws 34 inserted into the four screw insertion holes of the other power supply unit 30 to the screw holes 331B. However, one power supply unit 30 is attached to the surface of the mounting plate 331 in such a posture that the side surface along the longitudinal direction is parallel to the fixed piece 330 of the mounting member 33 as shown in FIG. On the other hand, the other power supply unit 30 is attached to the back surface of the mounting plate 331 in a posture in which the side surface along the longitudinal direction is inclined by approximately 45 degrees with the fixing piece 330 of the mounting member 33 as shown in FIG. . That is, since the mounting postures of the two power supply units 30 with respect to the mounting plate 331 are different, the positions of the screw holes 331A and 331B for mounting each power supply unit 30 can be shifted (FIGS. 6A and 6B). reference). As a result, two power supply units 30 can be attached to one mounting plate 331.

  Thus, since the two power supply units 30 are attached to the front and back surfaces of one mounting plate 331, the space occupied by the power supply unit 30 compared to the case where only one power supply unit 30 is attached to one mounting plate 331. As a result, the overall lighting apparatus can be reduced in size.

  Further, the control unit 31 controls each power supply unit 30 and dimmes each lamp 2 by increasing / decreasing the DC power supplied from the power supply unit 30, and is placed in a rectangular parallelepiped metal case 310. A control circuit is accommodated. The case 310 has protruding pieces 311 protruding from both side surfaces in the longitudinal direction, and the protruding pieces 311 have screw insertion holes extending therethrough.

  The control unit 31 is attached to the top plate 332 of one of the three attachment members 33 (see FIG. 6). Screw holes (not shown) are provided at both ends in the longitudinal direction of the top plate 332, and the mounting screws 35 inserted into the screw insertion holes of the projecting pieces 311 of the case 310 are screwed into the screw holes. The control unit 31 is attached to the lower surface side of the top plate 332 (see FIGS. 6A and 6B). Although the control unit 31 can be attached to the upper surface side of the top plate 332, the attachment of the control unit 31 to the lower surface side of the top plate 332 has an advantage that it is difficult for dust to enter the case 310. Further, in the power supply block 3 including the control unit 31, a terminal block 32 for connecting to a commercial AC power supply is provided on the side surface of the case 300 of one power supply unit 30 (the power supply unit 30 mounted in an inclined posture). Is attached (see FIGS. 3A and 3B).

  As shown in FIG. 2, the instrument main body 1 includes a circular bottom plate 10, two side plates 11 that constitute the side walls of the instrument main body 1, two coupling plates 12 that couple the bottom plate 10 and the two side plates 11, and the like.

  Each coupling plate 12 includes a bottom plate mounting portion 120 that is screwed to an end portion on the lower surface of the bottom plate 10, a side plate mounting portion 121 that is screwed to the longitudinal end portions of the two side plates 11, and the support member 4. A support base 122 for mounting is integrally formed by bending a metal plate (see FIG. 3B). That is, the bottom plate 10 and the two side plates 11 are coupled by the two coupling plates 12 to form a bottomed cylindrical instrument body 1 having an open upper surface as shown in FIG.

  Further, a bolt 123 is inserted through an insertion hole (not shown) penetrating the tip (upper end) of the support base 122 (see FIG. 1). The bolt 123 has an outer diameter of the head portion 123A larger than the inner diameter of the insertion hole, and has a cylindrical portion 123C (a portion that is not a male screw) between the head portion 123A and the screw portion 123B. Is inserted through the insertion hole of the support base 122 so that the outer side is on the outer side (side wall side). Then, the two nuts 124 are fastened to the screw portion 123B of the bolt 123, whereby the bolt 123 is fixed to the support base portion 122. Since the length of the cylindrical portion 123C of the bolt 123 is sufficiently larger than the plate thickness of the support base portion 122, the cylindrical portion 123C of the bolt 123 protrudes from the side surface of the support base portion 122. In other words, in the present embodiment, the cylindrical portion 123C of the bolt 123 protruding from the side surface of the support base 122 corresponds to the locking protrusion.

  Three circular window holes (not shown) pass through the bottom plate 10, and the lower end portion of the lamp 2 is inserted into each window hole. These three window holes are provided at positions where the angles of the straight lines connecting the center of the bottom plate 10 and the center of the window hole are 120 ° (see FIG. 2B). In addition, the flange part 23 which protrudes outward is provided in the side surface of the lamp main body 20, The lamp | ramp 2 is attached to the baseplate 10 by screwing this flange part 23 to the upper surface side of the baseplate 10 ( (See FIG. 3).

  Further, circular vent holes 101 pass through the center of the bottom plate 10 and between adjacent window holes. That is, since the air heated by the heat radiation from the radiation fins 22 of the lamp 2 rises, the cold air outside the instrument body 1 is introduced into the interior of the instrument body 1 through the vent hole 101. The heat dissipation effect by can be enhanced.

  Here, in the instrument main body 1, spaces (regions) are formed between the two adjacent lamps 2 and the side wall (side plate 11). Each power supply block 3 is connected to the bottom plate 10 in the region by screwing the fixing piece 330 of the mounting member 33 so that the mounting plate 331 and the side wall (side plate 11) of the instrument body 1 face each other. One is arranged in each of the regions (see FIG. 3A and FIGS. 4 and 5). Thus, in this embodiment, the instrument main body 1 can be reduced in size by arranging the power supply block 3 in a region that becomes a dead space.

  As shown in FIG. 7, the support member 4 is integrally formed by bending a metal plate with a rectangular fixed portion 40 and two arm portions 41 protruding downward from both ends in the longitudinal direction of the fixed portion 40. Formed.

  The fixing portion 40 has three screw insertion holes 400 extending therethrough along the longitudinal direction, and is fixed to the construction material (ceiling) by mounting bolts (not shown) inserted through the three screw insertion holes 400. The However, the strength of the fixed portion 40 is improved by bending both end portions along the longitudinal direction downward.

  The arm part 41 includes a connecting part 410 whose upper end is connected to the fixed part 40, a flat part 411 bent up at a substantially right angle from the connecting part 410 to the fixed part 40, and a downward and substantially right angle from the tip of the flat part 411. And a mounting portion 412 that is bent at the same time. Further, a substantially rectangular first insertion groove 413 having a dimension capable of inserting the head 123A of the bolt 123 attached to the support base portion 122 passes through the flat portion 411. Further, the attachment portion 412 has a second insertion groove 414 passing through the first insertion groove 413 having a dimension that the head portion 123A cannot be inserted and the cylindrical portion 123C of the bolt 123 can be inserted. The second insertion groove 414 is formed in a long hole shape having a semicircular arc shape at the lower end, and is connected to the first insertion groove 413 at the upper end. The width dimension in the left-right direction is narrower than the head 123A of the bolt 123 and is cylindrical. The dimensions are wider than the part 123C. The first insertion groove 413 and the second insertion groove 414 constitute a locked portion.

  Next, a procedure (construction procedure) for attaching the lighting fixture of the present embodiment to a construction material (ceiling) will be described.

  First, the fixing portion 40 of the support member 4 is fixed to the construction material (ceiling). The support member 4 can be fixed not only on a horizontal ceiling but also on a so-called inclined ceiling.

  Subsequently, the instrument main body 1 is moved so that the head 123A of the bolt 123 protruding from each coupling plate 12 is located directly above the first insertion groove 413 of the support member 4. When the instrument body 1 is lowered, the heads 123A of the two bolts 123 are respectively inserted into the first insertion grooves 413, and the cylindrical portions 123C of the respective bolts 123 are passed through the first insertion grooves 413 to be second inserted. It is inserted into the groove 414.

  That is, the two bolts 123 fixed to the instrument body 1 are respectively locked to the peripheral edges of the two second insertion grooves 414 provided in the pair of attachment portions 412 of the support member 4, The instrument body 1 is supported by being suspended from the support member 4. Thus, since the fixture body 1 can be supported by the support member 4 simply by inserting the bolt 123 from the first insertion groove 413 to the second insertion groove 414, the construction work for installing the lighting fixture on the ceiling can be simplified. Can be planned.

  Here, as shown in FIG. 1, since the length dimension of the cylindrical portion 123C of the bolt 123 is longer than the total dimension of the plate thickness of the support base portion 122 and the mounting portion 412, the cylindrical portion 123C is used as a fulcrum. The instrument main body 1 is rotatable with respect to the support member 4. Therefore, as shown in FIG. 9, when the support member 4 is fixed to the inclined ceiling, the instrument body 1 can be rotated by its own weight to be stabilized in a horizontal state without any adjustment work.

  By the way, since the fixture main body 1 including the lamp 2 and the power supply block 3 has a weight of several tens to several tens of kilograms, the bolt 123 usually does not fall out of the support member 4 through the insertion grooves 413 and 414. . However, when the instrument main body 1 moves upward due to the shaking of the earthquake, the bolt 123 may pass through the insertion grooves 413 and 414 and the instrument main body 1 may fall off the support member 4.

  Therefore, the supporting member 4 is provided with a retaining member 5 that displaces between a position where the first insertion groove 413 is closed and a position where the first insertion groove 413 is opened. As shown in FIG. 8, the retaining member 5 includes a main portion 50, a first fixing portion 51, a second fixing portion 52, a restricting portion 53, and a facing portion 54 that punch and process a metal plate. By doing so, it is formed integrally.

  The main portion 50 is formed in a belt shape and has a dimension (area) that can cover most of the first insertion groove 413. Each of the first fixing portion 51 and the second fixing portion 52 has a larger width dimension than the main portion 50. Further, the first fixing portion 51 is formed with a screw insertion hole 51A penetrating in the thickness direction. On the other hand, the second fixing portion 52 is formed with a long hole-like screw insertion groove 52A that penetrates in the thickness direction and is open at one end in the width direction. Further, in the second fixing portion 52, the end portion on the open end side of the screw insertion groove 52A is bent downward to form a protruding portion 52B. The restricting portion 53 is formed in a substantially convex shape and protrudes horizontally from the main portion 50 from the longitudinal center of the main portion 50. The facing portion 54 is formed in a substantially square shape, and is bent downward from the edge along the longitudinal direction of the main portion 50.

  The retaining member 5 is screwed to the flat portion 411 of each arm portion 41 of the support member 4 with two screws 6. That is, the screw 6 inserted from below into the screw insertion hole 51A of the first fixing portion 51 is tightened into a screw hole (not shown) provided in the flat portion 411, whereby the first fixing portion 51 is flat. Fixed to. On the other hand, after the screw 6 loosely tightened in another screw hole (not shown) provided in the flat portion 411 is inserted into the screw insertion groove 52A, the second fixing portion 52 is tightened by tightening the screw 6 tightly. It is fixed to the flat part 411. However, when the screw 6 is loosened, the retaining member 5 is rotatable with respect to the flat portion 411 with the screw 6 that fixes the first fixing portion 51 as a fulcrum.

  That is, the head 123A of the bolt 123 and the cylinder are moved from the first insertion groove 413 to the second insertion groove 414 in a state where the retaining member 5 is rotated and the main portion 50 is displaced to a position where the first insertion groove 413 is opened. The second fixing portion 52 may be fixed to the flat portion 411 by inserting the portion 123C and then rotating the retaining member 5 to rotate. In the state where the second fixing portion 52 is fixed to the flat portion 411, the main portion 50 covers (closes) most of the first insertion groove 413. Therefore, even if the instrument body 1 moves upward due to an earthquake, the bolt 123 is There is no possibility that the instrument body 1 will fall off the support member 4 through the insertion grooves 413 and 414. Further, in a state where the second fixing portion 52 is fixed to the flat portion 411, the facing portion 54 faces the head portion 123A of the bolt 123, and the facing distance is sufficiently shorter than the total length of the bolt 123 (FIG. 1). reference). Therefore, even if the nut 124 is loosened due to vibration due to an earthquake or the like and falls off the threaded portion 123B, the head 123A of the bolt 123 hits the facing portion 54, and therefore the bolt 123 may fall off from the support base portion 122 and the mounting portion 412. There is nothing.

  Further, in a state where the main portion 50 closes the first insertion groove 413, the restricting portion 53 protruding from the main portion 50 faces the tip of the support base portion 122 through the first insertion groove 413. Therefore, when the instrument main body 1 rotates with respect to the support member 4, the restricting portion 53 interferes with the tip of the support base 122 as shown in FIG. Will be. That is, it is possible to avoid the instrument body 1 from rotating and colliding with the ceiling (particularly an inclined ceiling) due to an earthquake shake or the like.

  By the way, as described above, when the shape of the second insertion groove 414 viewed from the axial direction of the cylindrical portion 123C is a semicircular arc shape, the cylindrical portion 123C and the second insertion groove 414 are disposed at one location (see FIG. 11). It touches only at the lower end in the vertical direction. Then, when the instrument body 1 sways due to an earthquake or the like, the instrument body 1 sways for a long time because the frictional force between the cylindrical portion 123C and the inner peripheral surface of the second insertion groove 414 is relatively small. May continue across.

  Therefore, as shown in FIG. 10, the shape of the second insertion groove seen from the axial direction of the cylindrical portion 123C is a polygonal shape (in the illustrated example, two diagonal sides) in contact with the cylindrical portion 123C. A trapezoidal shape is preferable. That is, compared with the case where the second insertion groove 414 has a semicircular arc shape, the frictional force between the cylindrical portion 123C and the inner peripheral surface of the second insertion groove 414 increases, so that the vibration generated in the instrument body 1 is attenuated. I can speed up the time to do. However, as shown in FIG. 10, it is preferable to provide a gap G between the bottom side (the lowest side) of the second insertion groove 414 and the cylindrical portion 123C. For example, when the cylindrical portion 123C is in contact with three oblique sides and the bottom side, the influence of the frictional force on the bottom side is relatively higher in relation to the weight of the instrument body 1 than the two oblique sides. The part in contact with the bottom of 123C may be easily cut. Therefore, if a gap G is provided between the bottom side of the second insertion groove 414 and the cylindrical portion 123C so that the cylindrical portion 123C is in contact with only two oblique sides of the second insertion groove 414, contact portions with the respective oblique sides Shave can be suppressed. The shape of the second insertion groove 414 is not limited to a trapezoid, and may be a polygon other than a trapezoid (for example, a pentagon or a hexagon).

1 Instrument body 2 Lamp 4 Support member
30 Power supply unit (power supply unit)
40 Fixed part
41 arms
123 bolt (locking projection)
123C Cylindrical part (locking protrusion)
413 1st insertion groove (locked part)
414 Second insertion groove (locked part)

Claims (6)

An instrument body that holds the light source and the power supply device, and a support member that supports the instrument body by suspending it,
The support member has a fixing portion fixed to the construction material and a plurality of arm portions protruding from the fixing portion, and the arm portion has a plurality of locking protrusions provided on the instrument body. A luminaire having a locked portion that is detachably locked.   The lighting fixture according to claim 1, wherein the locked portion locks the locking protrusion so as to be rotatable. The locking portion has a rod-shaped shaft portion and a head portion that is larger than the shaft portion and provided at the tip of the shaft portion,
The locked portion is connected to the first insertion groove having a dimension through which the head can be inserted and a dimension through which the head cannot be inserted and the shaft can be inserted. It has a 2nd penetration groove, The lighting fixture of Claim 1 or 2 characterized by the above-mentioned.   The shaft portion is cylindrical, and the second insertion groove is formed in a polygonal shape in which the shape of the shaft portion viewed from the axial direction is in contact with the shaft portion at a plurality of sides. 3. The lighting fixture according to 3.   5. The illumination according to claim 3, further comprising a retaining member that is provided on the support member and displaces between a position that closes the first insertion groove and a position that opens the first insertion groove. Instruments. The instrument body is rotatably supported with respect to the support member in a state where the locking portion is inserted into the second insertion groove.
The lighting fixture according to claim 5, wherein the retaining portion is provided with a regulating portion that interferes with the fixture main body and regulates a rotation range of the fixture main body.

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