JP2006108079A - Ceiling lighting unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling lighting unit capable of lighting a joint part and having various illumination patterns. <P>SOLUTION: This ceiling lighting unit has grids G having a plurality of light sources and the joint parts H formed between the adjoining grids G. At least lower surfaces of the grids G and the joint parts H are covered with light transmission members. Light shielding plates are provided between the grids G and the joint parts. The light source 4 are arranged in the grids G and the joint parts M, respectively, so that each grid G or each joint part M can be independently lit by lighting the light sources 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a ceiling lighting unit, and more particularly to a ceiling lighting unit having a grit part having a plurality of light sources and a joint part formed between adjacent grit parts.

In the conventional ceiling lighting unit, as described in Patent Document 1, for example, there is no ceiling lighting unit that can shine the joint portion.
Japanese Patent No. 3066399

  In view of such a conventional situation, an object of the present invention is to provide a ceiling lighting unit that can shine a joint part and further has various illumination patterns.

  In order to achieve the above object, the ceiling lighting unit according to the present invention is characterized in that the grit part and the joint part have a grit part having a plurality of light sources and a joint part formed between adjacent grit parts. And at least a lower surface thereof is covered with a light-transmitting member, a light shielding plate is provided between the grit part and the joint part, the light sources are respectively disposed on the grit part and the joint part, and the light source is turned on. Therefore, each grid or each joint portion can be lit independently.

  In addition, a detachable movable translucent part covering each grid part is supported by a pair of left and right friction arms, and one end of the friction arm is pivotally supported by a fixed frame to move the movable translucent part downward. Accordingly, the first link that swings one end of the movable translucent part away from the joint part, and supports the other part of the movable translucent part and the other end laterally to the fixed frame. The second link may be supported so as to be movable. According to this configuration, the movable translucent part moves away from the grid while moving in the lateral direction by the first link, and therefore the gap with the joint part may be small. Further, by making the end of the second link movable, the friction arm itself can be made thin.

  The said joint part has a translucent member, and this translucent member has a flat part and an inclined part, and these both parts are good also as what makes an obtuse angle. According to this, it is possible to prevent shadows and light shading from occurring in the joints as will be described later.

  The movable translucent part may have a frame assembled in a rectangular shape in plan view, and the longitudinal cross section of the frame may expand outward and have an acute angle as it goes downward. As a result, the light reaches the leading edge of the frame, and the entire grid can be lit without shadow.

  The movable translucent part has a canvas as a translucent member, the frame of the movable translucent part has a canvas pressing member, and the pressing member can be attached and detached from the side of the movable translucent part. Also good. According to this configuration, it is reasonable to perform the work of stretching the canvas fabric on the frame with the lower surface of the movable translucent part oriented upward.

  In each grid part, the light source may be arranged along the frame, and a light source may be further provided that irradiates the front end side of the pressing member at a more acute angle from the diagonal of the rectangle of the grid part. According to this configuration, it is possible to irradiate light uniformly to the front end of the frame, and to obtain illumination light without a shadow.

  According to the feature of the ceiling lighting unit according to the present invention, not only the grit part but also the joint part can be simultaneously illuminated so that it can be seen as an integral surface. In addition, only the joints can be illuminated, making it possible to create lighting according to the situation.

  Other objects, configurations, and effects of the present invention will become apparent from the following embodiments of the present invention.

Next, the present invention will be described in more detail with reference to the accompanying drawings as appropriate.
The ceiling lighting unit 1 according to the present invention generally includes a grit part G and a joint part H, and forms a matrix on the ceiling part.

  The grit part is a substantially rectangular illumination part surrounded by a pair of opposing canvas frames 5 and a pair of opposing canvas mounting frames 6 attached to both ends of the canvas frame 5, and is attached to the canvas mounting frame 6. It is covered with the canvas 2 which is a kind of the translucent member. A plurality of light sources 4a to 4c are arranged on the upper surface of the grit part G as shown in FIG.

  The canvas frame 5 itself is assembled in a rectangle in plan view. As shown in FIGS. 1 and 2, it is attached to a connecting member 22 fixed to a support member 21 attached to a ceiling frame 20 assembled in a rectangular shape in plan view. The friction arm 10 is connected to the fixed side frame 25 so as to be openable and closable in the vicinity of the edge.

  As shown in FIG. 4, the pin latch 19 has a base 19a, a movable pin 19b, and a locking claw 19c on the canvas frame 5 side, and a fixed portion 19d for receiving the movable pin 19b is attached to the fixed side frame 25. Then, by pushing up the movable translucent part M including the canvas mounting frame 6, the engaging claw 19 c is moved back and forth by the pressing of the movable pin 19 b so that it can be selectively attached and detached. The removed movable translucent part M can be opened and closed to a certain angle by the friction arm 10. Thereby, the movable translucent part M and the connected canvas mounting frame 6 can be easily opened and closed, and maintenance work is facilitated.

  Further, as shown in FIG. 2, the canvas mounting frame 6 has a slope inclined in the center direction of the adjacent joint portion. The canvas mounting frame 6 is formed in a rectangular shape in a plan view like the canvas frame 5, and the canvas ground 2 is fastened by bolts at the upper part or the side surface. The longitudinal cross section of the frame extends outward and becomes acute as it goes downward.

  The joint portion H is a portion that is separated by the light shielding plate 30 between the adjacent grit G portions and covered with the acrylic plate 3. As shown in FIG. 5, the light shielding plate 30 is rotatably attached to a hooking portion 31 that is separate from or integral with the frame, and the joint portion H and the grit portion G can be freely partitioned.

  The translucent member 3 made of an acrylic plate has a substantially U-shaped cross section and is inclined so as to be substantially parallel to the inclined surface of the canvas mounting frame 6 as shown in FIGS. It is fixed to the attached acrylic plate attachment portion 23. The acrylic plate attachment portion 23 is inclined with respect to the center of the joint H in the same manner as the acrylic plate 3 described above. A light source 4d is also arranged on the upper surface of the joint H.

Next, lighting of the grit part G and the joint part H will be described.
As shown in FIG. 6, the light sources are arranged on each side of the substantially square in the grit part G (4 a, 4 b), and are also arranged on the diagonal line 4 c of the grit part G. The light emitted from the light source 4c arranged on the diagonal line reaches the corner portion of the opposing grit portion G. Further, as shown in FIG. 8, light reaches the end portion of the canvas mounting frame 6 and the entire grit portion G can be uniformly illuminated without shadows.

  Further, as shown in FIG. 7, the canvas mounting frame 6 and the acrylic plate-made translucent member 3 are inclined. That is, the translucent member 3 has the flat part 3b and the inclination part 3a, and these both parts make an obtuse angle. Due to this inclination, the light emitted from the light source of the grit part G reaches the end of the canvas mounting frame 6, and the light emitted from the light source 4 d of the joint part is transmitted through the inclined surface of the acrylic plate 3 and the inclined surface of the canvas mounting frame 6. Will light up. Therefore, the joint portion H can obtain sufficient brightness, and the frame portion can also be brightened.

  Moreover, the grit part G and the joint part H are partitioned by the light shielding plate 30, and each part has a light source. Therefore, as shown in FIGS. 9A to 9E, it is possible to light only the shaded portion. That is, various illumination patterns can be obtained by combining the lighting of the light sources of the grit parts and joint parts, and patterns and pictures can be expressed. Furthermore, each part can be colored to provide colorful lighting. In addition, if the translucent members 2 and 3 are milky white translucent members, things other than a canvas ground and an acrylic board can also be used.

Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the member similar to 1st embodiment.
As shown in FIGS. 10 and 11 (a), a detachable movable translucent part M covering each grid part G is supported by a pair of left and right friction arms 10 and 10. In FIG. 10A, the friction arm 10 is disposed in front of and behind the paper, differing from the first embodiment by 90 degrees. Further, the pin latch 19 (not shown) is provided on both the left and right sides of FIG. The friction arm 10 is pivoted so that one end of the frictional arm 10 is pivotally supported by the fixed frame 25 and one end of the movable translucent part M is moved away from the joint part H as the movable translucent part M moves downward. The second link 13 has a first link 12 to be supported, and a second link 13 that supports the other part of the movable translucent part M and supports the other end of the first frame 12 so as to be movable in the lateral direction. The upper end of the second link 13 is movably fitted into a slot 25a provided in the fixed frame 25 via a roller 13a. Further, a sub arm 14 whose end is pivotally supported by the fixed frame 25 is connected to a substantially central portion of the second link 13.

  Usually, it is fixed at two places by a pin latch (not shown), and when the pin latch 19 is pushed from below, the movable translucent portion M is moved downward from the chain line as shown by a solid line. The movable translucent part M can be opened and closed even with a very small clearance between the canvas mounting frame 6 and the translucent member 3 made of an acrylic plate.

  FIG. 11A is a cross-sectional view crossing the longitudinal direction of the friction arm 10 of the present embodiment. In the present embodiment, the plate-like base plate 15 is arranged in the fixed side frame 25, and the slot 25a of the fixed side frame 25 is provided in the lower part of the base plate 15, and the end of the second link 13 is a roller in the slot 25a. Since it is movable via 13a, the intervals between the first and second links 12, 13, the base plate 15 and the fixed side frame 25 can be narrowed, and the friction arm 10 itself can be made thin. Further, by making the friction arm 10 thin, the shadow of the friction arm 10 is not reflected on the canvas 2.

  FIG. 12 shows an enlarged view of the canvas mounting frame 6. The frame 6 has a pressing member 6 b for the canvas 2 in addition to the frame body 6 a, and the pressing member 6 b holds the canvas 2. And it is comprised so that attachment / detachment operation of the pressing member 6b can be performed from the side of the movable translucent part M with the screw 6c.

Finally, a comparative example for the present invention will be described.
In the above embodiment, the canvas mounting frame 6 and the acrylic plate 3 are inclined. However, in the comparative example of FIG. 13, the outer surface 6′e of the canvas mounting frame 6 ′ and the outer surface 3′c of the acrylic plate 3 ′ at the joint are formed vertically. In this case, the B portion is bright, but the D portion is dark, and light unevenness occurs. Further, in the comparative example of FIG. 14, there is no partition, and for example, the optical path La of the light source 4 a 1 is blocked by the connecting member 22, and a dark D portion is generated in addition to a bright B portion. On the other hand, in the present invention shown in FIGS. 3 and 4, since both the joint inclined portion 3a and the canvas mounting frame 6 are inclined, it is dark both on the acrylic plate 3 at the joint and on the inside of the canvas mounting frame 6. Does not produce the part.

  INDUSTRIAL APPLICATION This invention can make a joint part shine, Furthermore, it can be used as a ceiling lighting unit which has various illumination patterns. For example, it can also be used for lighting in exhibition halls such as galleries, or for producing showrooms.

It is a partial crushing top view of the ceiling lighting unit concerning the present invention. It is a longitudinal cross-sectional view of the joint part vicinity. It is an expanded sectional view near a joint part. It is an enlarged front view of a pin latch. It is a hook part vicinity enlarged view of a light-shielding plate. It is a top view which shows the direction of the light of illumination. It is a front view which shows the direction of the light of the illumination in a joint part. It is A-A 'sectional drawing of FIG. It is the schematic which shows the pattern of illumination. The second embodiment of the present invention is shown, in which (a) is a longitudinal sectional view in the vicinity of the joint, and (b) is a plan view of the friction arm. Sectional drawing of a friction arm is shown, (a) is 1st embodiment, (b) is 2nd embodiment. It is an enlarged view of the canvas attachment member of 2nd embodiment. FIG. 8 is a view corresponding to FIG. 7 showing a comparative example of the present invention. FIG. 8 is a view corresponding to FIG. 7 illustrating another comparative example of the present invention.

Explanation of symbols

1: ceiling lighting unit, 2: canvas ground (translucent member), 3, 3 ′: acrylic plate (translucent member), 3a: inclined portion, 3b: flat portion, 3′c: outer surface, 4a to d: light source 5: Canvas frame, 6, 6 ': Canvas mounting frame, 6a: Frame body, 6b: Holding member, 6c: Screw, 6d: Inclined portion, 6'e: Outer surface, 10: Friction arm, 11: Mounting seat, 12: First link, 13: Second link, 13a: Roller, 14: Sub arm, 15: Base plate, 19: Pin latch, 19a: Base part, 19b: Movable pin, 19c: Locking claw, 19d: Fixed part, 21: Support member, 22: connecting member, 23: acrylic plate attachment portion (translucent member attachment portion), 25: fixed frame, 25a: slot, 30: light shielding plate, 31: latching portion, G: grit portion, H: Joint, La ~ d: optical path, M1, M2: lighting part, M: movable translucent part

Claims (6)

In a ceiling lighting unit having a grit part having a plurality of light sources and a joint part formed between adjacent grit parts,
The grit part (G) and the joint part (H) are covered at least on the lower surface with a translucent member (2, 3), and between the grit part (G) and the joint part (H). A light shielding plate (30) is provided, and the light source (4) is disposed in the grit part (G) and the joint part (H), respectively, and each grid (G) or joint part ( A ceiling lighting unit characterized in that H) can be lit independently. A detachable movable translucent part (M) covering each grid part (G) is supported by a pair of left and right friction arms (10, 10). One end of the friction arm (10) is fixed side frame (25). ) Pivoted so that one end of the movable translucent part (M) moves away from the joint part (H) as the movable translucent part (M) moves downward. 12) and a second link (13) that supports the other part of the movable translucent part (M) and has the other end supported by the fixed frame (25) so as to be movable laterally. The ceiling lighting unit according to claim 1, wherein: The joint portion (H) has a translucent member, and the translucent member (3) has a flat portion (3a) and an inclined portion (3b), both of which form an obtuse angle. The ceiling lighting unit according to claim 1 or 2. The movable translucent part (M) has a frame assembled in a rectangular shape in a plan view, and the longitudinal cross section of the frame extends outward and becomes an acute angle as it goes downward. The ceiling lighting unit according to any one of? The movable translucent part (M) has a canvas (2) as a translucent member, and the frame of the movable translucent part (M) has a pressing member (6b) of the canvas (2). The ceiling lighting unit according to claim 4, wherein the member (6b) can be attached and detached from a side of the movable translucent part (M). In each grid part (G), the light sources (4a, 4b) are arranged along the frame, and the tip of the pressing member (6b) is more acutely angled from the diagonal of the rectangle of the grid part (G). The ceiling lighting unit according to claim 5, further comprising a light source (4c) for irradiating the side.

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