JP5783857B2 - Elevator car lighting device and elevator car lighting method - Google Patents

Description

  The present invention relates to an elevator car illumination device and an elevator car illumination method for illuminating an elevator car.

  2. Description of the Related Art Conventionally, there is known an elevator car illumination device that includes a ring-shaped substrate and a plurality of LEDs mounted on the substrate. The plurality of LEDs are arranged side by side so as to draw a circle in accordance with the shape of the substrate (see, for example, Patent Document 1).

JP 2002-367406 A

  However, the light emitted from the LED usually has an irradiation angle of about 120 °. Therefore, when a conventional elevator car lighting device is installed in the upper part of the elevator car and the interior of the car is illuminated, there will be a part where a lot of light hits and a part where no light hits the floor of the car. To do. In other words, there is a problem that uneven light occurs on the floor of the car.

  The present invention provides an elevator car lighting device and an elevator car lighting method capable of reducing unevenness of light generated on a car floor.

An elevator car lighting device according to the present invention is an elevator car lighting device that is provided in a car and illuminates the car, and includes a plurality of LED units having a board and LEDs mounted on the board, A plurality of holding members attached to a cage and holding each of the substrates, wherein the plurality of LED units are arranged in a polygonal shape, and each holding member is centered on a rotating shaft and the rotating shaft And a holder main body that holds the substrate, and each of the holder main bodies rotates about the rotation axis, so that light emitted from the LED units is emitted. Each said board | substrate is separately inclined with respect to a horizontal surface so that it may spread | diffuse and may hit the floor of the said cage | basket | car.

In the elevator car lighting method according to the present invention, a plurality of LED units having a board and LEDs mounted on the board and arranged in a polygonal shape, and a rotation axis and the rotation axis are rotatable. using a plurality of holding members attached to the basket has a holding body for holding the substrate disposed on, a elevator-car lighting method of illuminating the inside car, the rotating each said holder body by rotating around a shaft, a substrate inclining step of inclining separately each said substrate with respect to a horizontal plane so as to diffuse the light emitted from each of the plurality of the LED unit hits the floor of the cage I have.

  According to the elevator car lighting device according to the present invention, a plurality of LED units including a substrate and a plurality of LED units having LEDs mounted on the substrate, and a holding device attached to the car and holding each substrate, the plurality of LED units. Are arranged side by side in a polygonal shape, and the holding device tilts the substrate with respect to the horizontal plane so that the light emitted from each LED unit diffuses and hits the floor of the car, so that the light emitted from each LED unit is It is possible to reduce hitting on a part of the floor of the car. As a result, light unevenness generated on the floor of the car can be reduced.

  According to the elevator car lighting method according to the present invention, light emitted from each of a plurality of LED units arranged in a polygonal shape having LEDs mounted on the board and the board is diffused and hits the floor of the car. Thus, since the substrate tilting step for tilting the substrate with respect to the horizontal plane is provided, it is possible to reduce the light emitted from each LED unit from being concentrated on a part of the floor of the car. As a result, light unevenness generated on the floor of the car can be reduced.

It is a front view which shows the elevator which concerns on Embodiment 1 of this invention. It is the bottom view which looked at the illuminating device of FIG. 1 from the downward direction. It is arrow sectional drawing along the III-III line of FIG. It is a figure which shows the light distribution characteristic of the illuminating device of FIG.

Embodiment 1 FIG.
1 is a front view showing an elevator according to Embodiment 1 of the present invention. In the figure, the elevator includes a car 1 and a lighting device (elevator car lighting device) 2 provided on the top of the car 1. The car 1 includes a floor 11, a side wall 12 that stands on the floor 11, and a ceiling 13 that is provided on the top of the side wall 12. The lighting device 2 is attached to the ceiling 13. In this example, the lighting device 2 is arranged below the lower surface of the ceiling 13. Note that the lighting device 2 may be disposed above the lower surface of the ceiling 13.

  2 is a bottom view showing the illumination device 2 of FIG. 1 as viewed from below, and FIG. 3 is a cross-sectional view taken along the line III-III of FIG. In the figure, the illuminating device 2 includes an aluminum base plate 21 formed in a ring shape, six holding members 22 attached to the base plate 21, and six pieces each held by each holding member 22. The LED unit 23 and six acrylic covers 24 attached to each holding member 22 one by one are provided. In FIG. 2, the acrylic cover 24 is omitted in order to make the base plate 21 and the LED unit 23 easier to see.

  The base plate 21 is attached to the lower surface of the ceiling 13 (FIG. 1) using a holding metal fitting (not shown). That is, the holding member 22 is attached to the car via the base plate 21 and the holding metal fitting.

  Each holding member 22 and each LED unit 23 are arranged on the same circumference around the vertical line that is a straight line extending in the direction of gravity, and arranged at equal intervals in the circumferential direction. Each of the six holding members 22 and the LED units 23 are arranged in a hexagonal shape. That is, each of the six holding members 22 and the LED units 23 are arranged so that each holding member 22 and the LED unit 23 constitute each side of the hexagon.

  Each holding member 22 includes a bearing portion 221 fixed to the base plate 21, a rotation shaft 222 extending in the horizontal direction and fitted to the bearing portion 221, and holding the LED unit 23, with the rotation shaft 222 as the center. And a holding body 223 that rotates. The holding portion main body 223 includes a support bar 224 that is fixed to the rotation shaft 222 and extends in the radial direction of the rotation shaft 222, and a mounting bracket 225 that is fixed to the support rod 224 and holds the LED unit 23. The bearing part 221, the rotation shaft 222, and the support bar 224 are made of hard plastic. The bearing portion 221 is a receiving portion having a slightly smaller diameter than the rotation shaft 222 and is fitted to the rotation shaft 22. Between the bearing portion 221 and the rotation shaft 222, the holding portion main body 223 and the LED are arranged. A frictional force that suppresses the rotation of the holding portion main body 223 around the rotation shaft 222 generated by the weight of the unit 23 is generated. That is, when the operator applies a rotating force to the holding portion main body 223, the holding portion main body 223 rotates about the rotation shaft 222, and the force by the operator is removed, so that the rotation shaft The holding unit main body 223 is fixed to the 222. The holding part main body 223 may have a fixing member (not shown) that fixes the position with respect to the rotation shaft 222. That is, the position of the holding portion main body 223 with respect to the rotation shaft 222 may be fixed by the fixing member after the holding portion main body 223 is rotated to an appropriate position around the rotation shaft 222.

  Each LED unit 23 has a rectangular substrate 231 in plan view and three LEDs 232 mounted on the substrate 231. Each LED 232 is arranged side by side in the longitudinal direction of the substrate 231. Each LED unit 23 is arranged so that the substrate 231 extends along each side of the hexagon formed by the six LED units 23. Each LED unit 23 is held by the holding unit main body 223 and rotates around the rotation shaft 222 as the holding unit main body 223 rotates. The six LED units 23 are rotated about a rotation shaft 222 so that the light emitted from each LED unit 23 diffuses and hits the floor 11 (FIG. 1) of the car 1 so that each substrate 231 is horizontal. (Substrate tilting step). Specifically, the surface of the substrate 231 on which the LED 232 is mounted is horizontal so that the portion of the substrate 231 located on the inner side in the radial direction of the base plate 21 is farther from the base plate 21 than the portion of the substrate 231 located on the outer side. It is inclined with respect to. In this example, all the substrates 231 are arranged to be inclined with respect to the horizontal plane, but only some of the substrates 231 may be arranged to be inclined with respect to the horizontal plane. In addition, the surface of the substrate 231 on which the LED 232 is mounted is positioned with respect to the horizontal plane so that the portion of the substrate 231 located on the inner side in the radial direction of the base plate 21 is closer to the base plate 21 than the portion of the substrate 231 located on the outer side. It may be inclined. In this case, the light emitted from the pair of LED units 23 at the opposing positions intersects, further diffuses, and strikes the floor 11 of the car 1.

  Each acrylic cover 24 covers each holding member 22 and each LED unit 23 together with the base plate 21. Each acrylic cover 24 is made of a transparent material.

  FIG. 4 is a diagram showing the light distribution characteristics of the illumination device 2 of FIG. In FIG. 4, the light distribution characteristic of the illuminating device 2 when the illuminating device 2 is arrange | positioned in the center part of the ceiling 13 (FIG. 1) arrange | positioned in the position whose height is 2.5 m from the floor 11 (FIG. 1) is shown. ing. The vertical axis represents the illuminance on the floor 11. The horizontal axis indicates the distance from the central portion of the floor 11, and the central portion of the floor 11 is the center of the horizontal axis. In FIG. 4, in order to compare with the light distribution characteristic of the illumination device 2, the light distribution characteristic of the illumination device 2 when the substrate 231 is horizontal and the illumination when a fluorescent tube is used instead of the illumination device 2. It is displayed together with the light distribution characteristics of the device. In the figure, A is a light distribution characteristic of an illuminating device using a fluorescent tube, B is a light distribution characteristic of the illuminating device 2 when the substrate 231 is leveled, and C is an illumination when the substrate 231 is inclined with respect to a horizontal plane. This is a light distribution characteristic of the device 2. In the case of a lighting device using a fluorescent tube, there is almost no difference in illuminance between the center portion of the floor 11 and the end portion of the floor 11. That is, in the case of a lighting device using a fluorescent tube, uneven light does not occur on the floor 11. When the substrate 231 is leveled, the light emitted from the LEDs 232 hits the center portion of the floor 11 without being diffused. That is, a lot of light hits the center part of the floor 11 and the light does not hit the end part of the floor 11 much. As a result, uneven light occurs on the floor 11. When the substrate 231 is inclined, the difference between the illuminance at the center portion of the floor 11 and the illuminance at the end portion of the floor 11 is reduced as compared with the case where the substrate 231 is leveled. That is, the light unevenness generated on the floor 11 is reduced.

  As described above, according to the illumination device 2 according to the first embodiment of the present invention, the six LED units 23 having the LEDs 232 mounted on the substrate 231 and the substrate 231 and the car 1 are attached, 6 LED units 23 are arranged in a hexagonal shape, and the holding member 22 diffuses the light emitted from each LED unit 23 to the floor 11 of the car 1. Since the substrate 231 is inclined with respect to the horizontal plane so as to hit the light, it is possible to reduce the light emitted from the LED unit 23 from being concentrated on a part of the floor 11 of the car 1. As a result, the light unevenness generated on the floor 11 of the car 1 can be reduced. In addition, since the substrate 231 is formed in a square shape in plan view as compared with a conventional substrate formed in a ring shape, the manufacturing yield of the substrate 231 can be improved. Further, compared to a conventional lighting device in which LEDs are mounted on a substrate so as to draw a circle in accordance with the shape of the substrate formed in a ring shape, the LED 232 is linearly formed on the substrate 231 formed in a square shape in plan view. Is mounted, the mounting of the LED 232 can be facilitated. As a result, the mounting of the LED 232 on the substrate 231 can be automated.

  Further, the holding member 22 includes a rotation shaft 222 and a holding portion main body 223 that is rotatably provided around the rotation shaft 222 and holds the substrate 231, and the holding portion main body 223 uses the rotation shaft 222. Since the tilt angle of the substrate 231 with respect to the horizontal plane can be changed by rotating to the center, the tilt angle of the substrate 231 with respect to the horizontal plane is adjusted according to the shape of the cage 1 when the lighting device 2 is attached to the cage 1. can do. Thereby, according to the shape of the cage | basket | car 1, the inclination angle with respect to the horizontal surface of the board | substrate 231 can be made into an optimal angle.

  Moreover, since each LED unit 23 is on the same circumference and is arranged in the circumferential direction at equal intervals, the dispersion | variation in the circumferential direction of the light emitted from the illuminating device 2 can be reduced. Thereby, generation | occurrence | production of the light nonuniformity about the circumferential direction centering on the part of the floor | bed 11 located directly under the illuminating device 2 can be prevented. As a result, the light unevenness generated on the floor 11 can be further reduced.

  According to the elevator car lighting method according to the present invention, the light emitted from each of the six LED units 23 having the board 231 and the LED 232 mounted on the board 231 and arranged in a hexagonal shape is diffused. Since the substrate tilting step of tilting the substrate 231 with respect to the horizontal plane so as to hit the floor 11 of the car 1 is provided, the light emitted from the LED unit 23 is also reflected from the side wall 12, and the floor 11 of the car 1 It is possible to reduce hitting on a part. As a result, the light unevenness generated on the floor 11 of the car 1 can be reduced.

  In the first embodiment, the configuration in which the substrate 231 is tilted with respect to the horizontal plane by rotating around the rotation shaft 222 while the holding unit main body 223 holds the LED unit 23 has been described. The holding portion main body 223 may have a configuration that does not have the rotation shaft 222 and is fixed to the base plate 21 and holds the substrate 231 that is inclined with respect to the horizontal plane.

  In the first embodiment, the configuration in which each substrate 231 is inclined with respect to the horizontal plane so that the light emitted from the LED 232 diffuses and hits the floor 11 (FIG. 1) of the car 1 has been described. However, if necessary, a configuration in which some of the substrates 231 are inclined with respect to the horizontal plane so that the light emitted from the LEDs 232 concentrates and hits the floor 11 of the car 1 may be employed.

  In the first embodiment, the lighting device 2 is described in which the six holding members 22 and the LED units 23 are arranged so as to constitute each side of the hexagon. However, for example, the eight holding members 22 and A plurality of holding members 22 and LED units 23 are arranged so as to form polygonal sides determined according to the number so that the LED unit 23 forms each side of the octagon. It may be.

  In the first embodiment, the LED units 23 are arranged on the same circumference and arranged at equal intervals in the circumferential direction. However, the present invention is not limited to this, and light emitted from the LEDs 232 is diffused. Then, the substrate 231 may be disposed so as to be inclined with respect to the horizontal plane so as to hit the floor 11 of the car 1.

  Moreover, although the said Embodiment 1 demonstrated the structure by which the one illuminating device 2 was provided in the ceiling 13 of the cage | basket | car 1, the structure by which the several illuminating device 2 was provided in the ceiling 13 may be sufficient. In this case, since the light emitted from the adjacent illuminating devices 2 overlaps each other, the light unevenness generated on the floor 11 can be further reduced.

  In the first embodiment, the lighting device 2 newly attached to the ceiling 13 of the car 1 has been described. However, the existing fluorescent lamp lighting device on the ceiling 13 of the car 1 is removed from the ceiling 13 and the fluorescent lamp lighting device is removed. The illuminating device 2 attached to the part of the ceiling 13 to which was attached may be used.

  DESCRIPTION OF SYMBOLS 1 Car, 2 Lighting device (Elevator car lighting device), 11 Floor, 12 Side wall, 13 Ceiling, 21 Base plate, 22 Holding member, 23 LED unit, 24 Acrylic cover, 221 Bearing part, 222 Rotating shaft, 223 Holding Main body, 224 support rod, 225 mounting bracket, 231 substrate, 232 LED.

Claims (4)

An elevator car lighting device that is provided in a car and illuminates the car,
A plurality of LED units having a substrate and LEDs mounted on the substrate;
A plurality of holding members attached to the cage and holding each of the substrates;
The plurality of LED units are arranged in a polygonal shape,
Each of the holding members has a rotation shaft and a holding portion main body that is provided to be rotatable about the rotation shaft and holds the substrate, and each holding portion main body is centered on the rotation shaft. in by turning the elevator car in the lighting apparatus characterized by tilting separately with respect to a horizontal plane of each of said substrate so the light emitted strikes the floor of the cage is diffused from each said LED units. The holding member, by pre-Symbol main holder body is rotated around the rotating shaft, the elevator car of claim 1, wherein the inclination angle of the substrate with respect to the horizontal plane is changeable Lighting device.   3. The elevator cab illumination device according to claim 1, wherein the LED units are arranged on the same circumference at regular intervals in the circumferential direction. A plurality of LED units having a substrate and LEDs mounted on the substrate and arranged side by side in a polygonal shape, a rotation shaft, and a holding portion main body that is rotatably provided around the rotation shaft and holds the substrate An elevator car lighting method for illuminating the car using a plurality of holding members attached to the car,
By each said main holder body is rotated around the pivot axis, each said substrate so as to diffuse the light emitted from each of the plurality of the LED unit hits the floor of the car with respect to a horizontal plane An elevator car lighting method comprising a substrate tilting step for tilting separately .

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