JP2010218919A - Arm for spotlight, spotlight, and ceiling-embedded type spotlight unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize downsizing of an opening formed in a ceiling plate by providing an arm for a spotlight, capable of enlarging a range of light which can be irradiated by the spotlight and by making a spotlight a ceiling-embedded type equipped with the arm. <P>SOLUTION: In the spotlight equipped with its spotlight body 3 equipped with a lamp as a light source and the arm 2 for retaining the spotlight body 3 at the tip part, the arm 2 is formed by the arm body 21 and a coupling rod 22, in which one end 22a is coupled to the tip of the arm body 21 in a push-openable fashion, and the spotlight body 3 is retained capable of push-opening at the other end 22b of the coupling rod 22. According to this constitution, by the combination of push-opening movement of the coupling rod 22 and push-opening movement of the spotlight body 3, the range which can be irradiated by the spotlight 1 equipped with this arm 2 can be significantly widened. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a spotlight arm, a spotlight, and a ceiling-embedded spotlight unit, and more specifically, spotlight irradiation in a spotlight arm that holds a spotlight body provided with a light source at a tip portion. A spotlight arm capable of expanding the possible range, a spotlight having the spotlight arm, and the spotlight and a storage box in which the spotlight is embedded in an opening formed in the ceiling. The present invention relates to a ceiling embedded spotlight unit comprising a combination.

  Spotlights are used in exhibition halls, stores, hotel accommodations, etc. for lighting of various exhibits and products, indirect lighting by light irradiation on walls, and other various uses. An increasing number of scenes are used as lighting.

  Such a spotlight is generally formed by housing a lamp or reflector as a light source in a body forming an outer shell and covering the front opening of the body with a transparent plate such as a light-transmitting glass plate. A spotlight main body and an arm that holds the spotlight main body at the tip end thereof so as to be slidable are mounted. The base end of the arm is attached to a desired position on the wall surface or ceiling plate by, for example, screwing or the like. The irradiation direction can be adjusted by swinging the spotlight body held at the tip and directing the optical axis in a predetermined direction.

  In such a spotlight, when the base end of the arm is directly attached to a wall surface or ceiling, the spotlight protrudes from the wall surface or ceiling into the indoor space. May be damaged.

  Therefore, in order to improve the indoor landscape and design, the spotlight can be directly touched by the viewer from the indoor side by installing the spotlight in the opening formed in the ceiling board. It is also proposed to install so that there is no.

  Thus, in order to install the spotlight embedded in the ceiling, as shown in FIG. 14 as an example, a storage box 150 that opens downward toward the opening 171 formed in the ceiling plate 170 on the ceiling is provided. In some cases, the spotlight 100 can be accommodated in the space in the accommodation box 150 by attaching the base end 122 of the arm 120 provided on the spotlight 100 to the top plate of the accommodation box 150.

  A spotlight that can be embedded in a ceiling by combining such a spotlight and the storage box is referred to as a “ceiling embedded spotlight unit” in this specification.

  Here, in the ceiling-embedded spotlight unit configured as described above, the irradiation light from the spotlight main body 130 is the opening 171 formed in the ceiling plate 170 or the opening of the storage box 150 that borders the opening 171. In view of the fact that the light irradiation range by the spotlight 100 is restricted by the size of the opening of the storage box 150 as a result, the interior of the storage box 150 The base end 122 of the arm 120 is attached to the top plate so as to be rotatable in the horizontal direction, and the arm 120 is rotated about the base end 122 by tilting the arm 120 at a predetermined angle with respect to the vertical line. It has also been proposed to change the direction of irradiation by the spotlight 100 by moving it (see Patent Document 1).

JP 2005-26100 A

  As described above, in the above-described ceiling-embedded spotlight unit in which the spotlight 100 is accommodated in the accommodation box 150 arranged on the back of the ceiling, the light of the spotlight 100 accommodated in the accommodation box 150 is Since the room is irradiated through the opening of the storage box 150 as described above, if the opening size of the storage box 150 is reduced, the light irradiation range is correspondingly narrowed.

  In order to compensate for such a narrow irradiation range, it is necessary to increase the number of ceiling-mounted spotlight units, which not only increases the work period and costs for installing lighting fixtures, As a result of the formation of a large number of apertures, the appearance of the ceiling viewed from the indoor side becomes poor.

  On the other hand, if the size of the opening formed in the ceiling plate is increased and the opening size of the storage box is increased accordingly, the light irradiation range by the spotlight stored in the storage box can be expanded.

  However, the presence of a large opening formed in the ceiling panel not only deteriorates the appearance of the ceiling part seen from the room, but if the opening formed in the ceiling is made large, the spotlight hidden behind the folding ceiling The field of view from the indoor side is entered through this opening.

  With respect to such a problem, in the invention described in the above-mentioned Patent Document 1, the base end 122 of the arm 120 of the spotlight 100 is attached to the top plate of the storage box 150 so as to be rotatable in the horizontal direction. , By tilting the arm 120 with respect to the vertical line, as shown in FIG. 14, the arm 120 rotates with the base end portion 122 as a fulcrum, and the spotlight main body 130 held by the tip end portion 121 of the arm 120. By the peristaltic movement, the irradiable range of the spotlight 100 can be expanded.

  However, in the configuration described in Patent Document 1, for example, when the rotation position of the arm 120 is at the position shown in FIG. 16A in plan view, the irradiation direction of the spotlight 100 is the peristaltic movement of the spotlight main body 130. Even if it can be tilted in the length direction (vertical direction in the figure) of the opening formed in the ceiling board, it cannot be tilted in the width direction of the opening (horizontal direction in the figure).

  Therefore, for example, when it is desired to tilt the optical axis in the direction indicated by the arrow A in FIG. 16A, first, the arm 120 is rotated to the position shown in FIG. The main body 130 is inclined as shown in FIG. 14, but when the opening width of the storage box 150 is narrowed in combination with the spotlight 100 provided with the inclined arm 120, the arm shown in FIG. In the 120 rotation position, the spotlight main body 130 is disposed directly above the ceiling board 170 (see FIG. 15).

  As a result, if the required inclination of the optical axis is a relatively large angle as shown in FIG. 14 (for example, 45 ° with respect to the perpendicular), light can be efficiently irradiated through the opening 171. However, as the inclination of the optical axis with respect to the vertical line becomes more acute, much of the irradiation light from the spotlight 100 is blocked by the opening edge of the storage box 150 as shown in FIG. Therefore, when it is desired to slightly tilt the optical axis in the direction of arrow A shown in FIG. 16, the ceiling-embedded spotlight unit having the structure shown in FIGS. 14 and 15 cannot cope with this.

  Further, in the configuration described in Patent Document 1, it is necessary to rotate the spotlight 100 around the base end portion of the arm 120 when changing the light irradiation direction. In the configuration described in Patent Document 1, since the arm is inclined, the rotation trajectory of the spotlight main body 130 is relatively large. As a result, the above-described storage box for storing such a spotlight 100 is provided. The space inside 150 becomes larger, and the storage box 150 installed behind the ceiling becomes larger.

  Accordingly, the present invention has been made to solve the above-described disadvantages of the prior art, and an arm for a spotlight that can expand a light irradiable range by a spotlight by deforming the arm in a limited space. , And providing a spotlight having the spotlight arm, and further, by combining the spotlight having the spotlight arm and the storage box, the opening formed in the ceiling plate is made relatively small, An object of the present invention is to provide a ceiling-embedded spotlight unit capable of expanding the irradiable range of the spotlight accommodated in the accommodation box without enlarging the accommodation box. To do.

  In order to achieve the above object, the spotlight arm 2 of the present invention includes an arm main body 21 and a connecting rod 22 that is slidably connected to the distal end of the arm main body 21 and has the connecting rod 22. The spotlight body 3 having a lamp as a light source is slidably held at the other end 22b of the light source (claim 1).

The spotlight 1 according to the present invention includes a spotlight body 3 having a lamp as a light source, and a spotlight 1 having an arm 2 that holds the spotlight body 3 at the tip.
The arm 2 is formed by an arm main body 21 and a connecting rod 22 having one end 22a connected to the tip of the arm main body 21 so as to be swingable, and the spotlight main body 3 is swung to the other end 22b of the connecting rod 22. It is possible to hold it (claim 2).

  Further, the ceiling-embedded spotlight unit of the present invention is directed to the spotlight 1 holding the spotlight body 3 having a lamp as a light source at the tip of the arm 2 and the opening 71 formed in the ceiling plate 7. The box 2 is formed by a combination of a storage box 5 having a box shape that opens and a chamber for storing the spotlight 1 is defined in the back of the ceiling. The spotlight body 3 is configured to be slidably held at the other end 22b of the connecting rod 22 by being configured by a main body 21 and a connecting rod 22 that is slidably connected to the tip of the arm body 21. The base end portion (base portion 211) of the arm main body 21 is rotatably attached to the top plate of the storage box 5 (Claim 3).

  In the ceiling-embedded spotlight unit having the above-described configuration, the base end portion (base portion 211) of the arm body 21 is preferably slidably mounted in the length direction of the storage box 5 on the top plate of the storage box 5. (Claim 4).

  Due to the configuration of the present invention described above, the spotlight 1 having the spotlight arm 2 of the present invention, and the ceiling-embedded spotlight unit in which the spotlight 1 and the storage box 5 are combined, The light arm 2 is formed by an arm main body 21 and a connecting rod 22 whose one end 22a is slidably connected to the tip of the arm main body 21, and the spotlight main body is swung to the other end 22b of the connecting rod 22. Since the arm 2 is deformed by the swinging of the connecting rod 22, the spotlight main body 3 can be arranged at a desired position on the rotation trajectory of the connecting rod 22.

  As a result, the deformation of the arm 2 in a relatively narrow space is achieved by the combination of the adjustment of the swing position of the connecting rod 22 and the swing of the spotlight body 3 slidably held at the other end 22b of the connecting rod 22. As a result, the optical axis of the spotlight body 3 can be directed in various directions.

  As a result, the irradiable range of the spotlight provided with the spotlight arm can be greatly expanded, and when such a spotlight 1 is used as a ceiling-embedded type, Even when the opening width was narrowed and the space in the storage box 5 was narrowed to reduce the size of the storage box 5, the irradiation range of the spotlight 1 could be expanded.

  In particular, in the configuration in which the base end portion (base portion 211) of the arm body 21 is rotatably attached to the top plate of the storage box 5, and in the configuration in which the base body 21 is slidable in the length direction of the storage box 5, The combination of not only the deformation of the arm 2 accompanying the swinging of the connecting rod 22 and the swinging of the spotlight main body 3 but also the rotation and sliding of the arm could further expand the irradiation range of the spotlight 1. .

The perspective view of the spotlight provided with the arm for spotlights of this invention. The front view of the spotlight provided with the arm for spotlights of this invention. The right view which shows the partially disassembled state of the spotlight provided with the arm for spotlights of this invention. The partial cross section right view of the spotlight provided with the arm for spotlights of this invention. Explanatory drawing of the deformation | transformation state of an arm. The perspective view of the arm for spotlights of this invention. The enlarged view of the front-end | tip part of the arm for spotlights of this invention. The right view of the spotlight arm of the present invention (the state where the connecting rod is swung on the arm extension). The right view of the spotlight arm of this invention (The state which slid the connection rod to the position which overlaps with an arm part). The right view of the spotlight arm of this invention (The state which slid the connection rod in the orthogonal direction with the arm part). Explanatory drawing of the ceiling-embedded spotlight unit of this invention. Explanatory drawing of the ceiling-embedded spotlight unit of this invention. It is explanatory drawing which showed the relationship between the peristaltic position of a connection rod, and the change state of the irradiation range of light, (A), (B) is a change of the range of an irradiation angle, (C), (D) is an optical axis. It is explanatory drawing of the change of the light quantity thru | or irradiation range in the case of having the same inclination angle. Explanatory drawing of the conventional ceiling-embedded spotlight unit (in a state where the optical axis is inclined). Explanatory drawing of the conventional ceiling-embedded spotlight unit (the state which made the optical axis the perpendicular direction). It is explanatory drawing of the spotlight provided with the arm for conventional spotlights, (A) is arrangement | positioning in case an optical axis is inclined with respect to the length direction of the opening formed in the ceiling, (B) is an opening of an opening. Arrangement for tilting the optical axis in the direction perpendicular to the length direction.

  Next, embodiments of the present invention will be described below with reference to the accompanying drawings.

〔Spotlight〕
1 to 5 is a spotlight provided with a spotlight arm 2 according to the present invention. The spotlight 1 is attached to the spotlight arm 2 and the tip of the spotlight arm 2. It is comprised by the spotlight main body 3 hold | maintained so that sliding is possible.

  As shown in FIG. 4, the spotlight main body 3 is formed by housing various components necessary for light irradiation in a body 31 constituting the outer shell, as shown in FIG. In the embodiment, a socket 33 for attaching a lamp 32 as a light source, a lamp 32 attached to the socket 33, and light generated by the lamp 32 in a body 31 in which a heat radiation port 311 is formed. The spotlight main body 3 is integrally formed by accommodating a mirror 34 that reflects in the direction of and covering the front opening of the body 31 with a hood 35 having a transparent plate such as a glass plate.

  The aforementioned socket 33 is provided with a cable 36 for connecting the lamp 32 attached to the socket 33 to a power source, and a heat radiating fin 37 is provided on the outer periphery thereof. The heat can be radiated by exchanging heat with the outside air through a heat radiation port 311 provided in the body 31.

  Further, an anti-glare cap 38 is attached to the tip of the lamp 32 attached to the socket 33 as shown in FIGS. 2 to 4, and the light generated by the lamp 32 is directly reflected without being reflected by the mirror 34. The glare caused by entering the field of view is reduced.

  The spotlight main body 3 configured as described above is provided with a structure for slidably holding the spotlight main body 3 at the tip of a spotlight arm 2 to be described later. Is provided with a tongue-like stay 312 at a symmetrical position in the width direction of the body 31 of the spotlight body 3 as shown in FIG. 1 and through a pin hole (not shown) formed in the stay 312. The arm 2 can be attached to the tip.

  However, the spotlight main body 3 may be attached to the tip of the arm 2 by any structure as long as the spotlight main body 3 can be slidably held at the tip of the arm 2 and is not limited to the illustrated embodiment. .

  Also, the spotlight body 3 may have various known structures as long as it can irradiate light generated by the lamp 32 as a light source in a predetermined direction. For example, the spotlight body 3 can be applied. May be formed in a rectangular tube shape as a whole, or depending on the type of lamp used, the transparent plate covering the front surface may be omitted. Various structures can be changed, and the present invention is not limited to the illustrated embodiment.

  The spotlight arm 2 of the present invention holding the spotlight main body 3 configured as described above includes an arm main body 21 and a connecting rod 22 that is connected to the tip of the arm main body 21 so that one end 22a is slidable. The spotlight body 3 can be attached to the other end 22b of the connecting rod 22 so as to be slidable (see FIGS. 6 to 10).

  In the illustrated embodiment, the arm body 21 is bent in two places on the center side in the length direction of the belt-like metal plate as shown in FIGS. A base portion 211 that is formed in a substantially downward U-shape and is formed at the center portion and serving as a base end portion of the arm body 21, and two arms that are continuously formed at both ends of the base portion 211. It is formed in a shape provided with a portion 212.

  As shown in FIG. 3, each arm portion 212 of the arm main body 21 is formed so that the center thereof overlaps with the rotation center O of the arm 2 centering on the fitting member 23 described later, as seen from the side. Inclination like the arm shown in FIGS. 14 and 15 described as the prior art is not provided in the arm portion 212.

  The base portion 211 has a base rail 211 provided on a guide rail 6 provided on a top plate of the storage box 5 to be described later on a surface opposite to the protruding side of the arm portion 212 (upper surface in FIG. 2). A fitting member 23 for attaching the guide rail 6 so as to be rotatable and movable in the length direction of the guide rail 6 is attached. By combining the fitting member 23 and the guide rail 6, the arm 2 is provided. And a slide mechanism that can move the arm 2 to a predetermined position in the length direction of the storage box 5.

  As will be described later, in the configuration of this embodiment using the guide rail 6 having a C-shaped cross section, a cylindrical shape having grooves 231 formed in the circumferential direction is formed as shown in FIG. , A fitting member 23 having a flange 232 formed thereon is provided above a portion where the groove 231 is formed, and the flange 232 of the fitting member 23 is fitted into a fitting groove 61 formed in the guide rail 6. By combining (see FIG. 11), the arm 2 can be rotated with respect to the guide rail 6 and can be attached in a slidable state.

  The fitting member 23 is formed with a screw hole 233 in which a female screw is formed on the inner periphery passing through the center thereof, as shown in an enlarged cross-sectional view of a main part shown in a circle in FIG. A through hole 211a that penetrates the thickness of the base portion 211 is formed in the base portion 211 of the arm main body 21 corresponding to the position where the screw hole is formed (see FIG. 6). The front end of the fixing bolt 24 is inserted into the through hole 211a of the base portion 211 from the opposite surface side and screwed into the screw hole 233 of the fitting member 23, and the front end protrudes from the upper end of the fitting member 23. It can be configured.

  With this configuration, the fixing bolt 24 is tightened in a state in which the flange portion 232 of the fitting member 23 is fitted to a guide rail 6 described later, and the tip of the fixing bolt 24 is fixed to the fitting member 23. When projecting from the upper end, the tip of the bolt 24 is pressed against the inner wall of the fitting groove 61 of the guide rail 6 so that the arm 2 can be fixed at a predetermined position of the guide rail 6. Yes.

  As shown in FIG. 2, for example, a handle 25 is attached to the rear end of the bolt 24. By screwing the bolt 24 by rotating the handle 25, a guide rail can be used without using a tool or the like. You may comprise so that the said arm 2 can be fixed to the predetermined position on 6.

  The aforementioned arm portions 212 and 212 formed continuously at both ends of the base portion 211 are formed slightly wider than the width of the spotlight main body 3 to be held between the tip portions, as described above. The spotlight main body 3 is attached between the tips of the formed arm portions 212, 212 via connecting rods 22, 22 (see FIG. 2).

  The arm portions 212 and 212 may be arranged in parallel with each other over the entire length from the connecting side end portion to the base portion 211 to the tip end. In the embodiment, both arm portions 212 and 212 are both arm portions within a predetermined length from the end portion on the connection side with the base portion 211 toward the distal end side (lower side in FIGS. 2 and 6). The gap between the arms 211 and 212 is formed so that the gap between the arms 212 and 212 is parallel with a constant width, and the base 211 and the arms are seen in front view as shown in FIG. The portions 212 and 212 are formed so as to be substantially trapezoidal as a whole.

  One end 22a of the connecting rods 22 and 22 described above is slidably connected to the distal ends of the arm portions 212 and 212 of the arm main body 21 thus formed, and the other end 22b of the connecting rods 22 and 22 is slidable. Further, the stay 312 (see FIG. 1) provided on the body 31 of the spotlight body 3 described above can be connected.

  The connecting rods 22 and 22 for connecting the spotlight body 3 and the tip of the arm body 21 are formed by bending a metal plate into a Z or S shape in the example shown in FIGS. It is formed in a crank shape having a flat part connected to the tip of the arm body 21, a flat part attached to a stay 312 provided on the body 31 of the spotlight body 3, and an inclined part connecting the two flat parts. The flat portion on the one end 22a side of the connecting rod 22 is rotatably supported by the pin 26 at the tip of each arm portion 212, 212 in a state of surface contact with the surface facing the other arm portion. The stays 312 provided on the body 31 of the spotlight body 3 are rotatably supported by the pins 27 on the other end 22b of the spotlights 22 and 22 so that the connecting rods 22 and 22 have the crank shape. Ri, head, etc. of the pin 27 rotatably mounting the spotlight body 3 are prevented from interfering with the arm portion 212 of the arm body 21 upon rotation of the connecting rod 22.

  The connecting rod 22 does not necessarily have to be formed in a crank shape as shown in the illustrated embodiment. For example, a flat plate shape may be used.

  When the connecting rod 22 is formed in such a flat plate shape, one end of the connecting rod 22 is avoided in order to avoid interference between the head of the connecting rod 22 and the pin 27 and the arm portion 212 when the connecting rod 22 rotates. For example, the spacers may be fixed with the pins 26 in a state where a spacer is disposed between the distal end of the arm 22a and the arm portion 212, and various modifications are possible without being limited to the illustrated embodiment.

  1, 2 and 6, as described above, the arm body 21 is formed in a substantially downward U shape to provide two arm portions 212, 212, and the two arm portions 212, 212 The spotlight body 3 has been described as being slidably attached to the respective ends via the connecting rods 22; however, instead of this configuration, for example, one of the arm portions of the arm body shown in FIG. 2 is omitted without being provided. Then, the arm main body 21 is formed in a substantially inverted L shape formed by only the base portion and one arm portion 212, and the spotlight main body 3 is fixed to the tip of the arm portion 212 via the connecting rod 22 so as to be slidable. And it is good also as a structure which makes the spotlight main body 3 cantilever, The structure is not limited to the example of illustration.

[Embedded spotlight unit]
The spotlight 1 having the spotlight arm 2 configured as described above is obtained by independently changing the spotlight 1 having the spotlight arm 2 by deformation of the arm by the combination of the arm body 21 and the connecting rod 22. Even if it is used in the above, the light irradiable range by the spotlight 1 can be expanded. For example, the formation of the fitting member 23 provided in the base portion 211 of the arm body 21 is omitted, and this The base portion 211 may be used by directly attaching to the wall surface such as a wall or a ceiling, or the arm body is attached to the guide rail 6 attached to the ceiling or the guide rail 6 suspended from the ceiling at a predetermined position. It is good also as what is used by fitting and attaching the said fitting part 23 provided in the base part 211 of 21 (not shown).

  However, the spotlight 1 having the spotlight arm 2 having the above-described configuration irradiates light indoors through an opening 71 formed in the ceiling board 7 by using the spotlight 1 as a ceiling-embedded type. Regardless of what is to be done, it is difficult to be restricted by the size or the like of the opening 71 formed in the ceiling plate 7 when changing the light irradiation direction or the like.

  Thus, when the spotlight 1 is used as a ceiling-embedded type, in addition to the spotlight 1 described above, a storage box 5 for storing the spotlight 1 is prepared, and the ceiling board 7 at the spotlight 1 mounting position is prepared. The above-mentioned storage box 5 is installed behind the ceiling at the position where the opening 71 is formed, and the spotlight 1 is mounted in the storage box 5 so that the spotlight 1 having the above-described configuration is mounted on the ceiling. It can be installed in an embedded state.

  As described above, the above-described storage box 5 that forms the storage space for the spotlight 1 on the back of the ceiling has a box shape that opens downward toward the above-described opening 71 formed in the ceiling plate 7. As shown in FIGS. 11 and 12, a frame 51 attached to the periphery of an opening 71 formed in the ceiling, a hood 52 having a U-shaped cross section that covers the top of the frame 51, and the frame 51 A bracket 53 is provided to be fixed at a predetermined position on the back of the ceiling.

  This storage box 5 is installed in advance at a position that becomes the ceiling behind the construction (attachment) of the ceiling board 7.

  The aforementioned frame 51 provided in the storage box 5 is a metal long member formed in a substantially L-shaped cross section cut into a predetermined dimension corresponding to the size of the opening 71 to be formed in the ceiling plate 7. Thus, by performing construction (attachment) of the ceiling plate 7 along the frame body 51 provided in the storage box 5, at least two sides in the length direction of the opening edge are formed on the constructed ceiling body. An opening 71 defined by 51 is formed.

  In the illustrated embodiment, the frame 51 includes a horizontal portion 511 disposed on the ceiling plate 7 within a predetermined range from the edge of the opening 71, and a vertical portion 512 rising upward in the orthogonal direction with respect to the horizontal portion 511. I have.

  The horizontal portion 511 is formed with a bent portion 511 a that covers the edge of the opening 71 of the ceiling plate 7, and the portion of the storage box 5 that protrudes in the horizontal direction from the bent portion 511 a to the inner peripheral direction of the opening 71. An opening edge is formed.

  In this manner, the horizontal portion 511 of the portion protruding to the inner peripheral side of the opening 71 formed in the ceiling plate 7 has an inclined portion inclined upward from the end portion on the front end side in the protruding direction toward the outer peripheral side of the opening. 511b is provided, and a large number of sawtooth-shaped irregularities are formed on the surface of the inclined portion 511b, and the light hitting this portion is cut to reduce the aesthetic appearance due to the opening edge appearing to shine by reflected light. It is comprised so that it can prevent.

  In the vertical portion 512 of the frame body 51, a wedge-shaped fitting projection 512a that widens in the protruding direction on the surface opposite to the protruding side of the horizontal portion 511 is provided at predetermined intervals in the height direction. A fitting recess having a shape in which the cross-sectional shape of the fitting protrusion 512a is horizontally reversed is formed between the fitting protrusions 512a (see an enlarged view in FIG. 11).

  The frame 51 is attached to the back of the ceiling in a shape corresponding to the fitting protrusion 512a provided on the vertical portion 512 of the frame 51 on the vertical portion 532 of the bracket 53 having an inverted L-shaped cross section. A fitting projection 532 a is formed, and the fitting projection 512 a provided on the vertical portion 512 of the frame 51 is fitted between the fitting projection 532 a provided on the vertical portion 532 of the bracket 53, and the vertical of the frame 51 The fitting projections 532a provided on the vertical portion 532 of the bracket 53 are fitted into the interval between the fitting projections 512a provided on the portion 512 to connect them, and in this state, the bracket 53 is placed at a predetermined position on the ceiling. By attaching, the frame body 51 can be attached at a predetermined position on the back of the ceiling, the engaging position of both the protrusions 512a and 532a is changed in the vertical direction, and the bracket 53 By adjusting the mounting position, it is possible to adjust the position of the frame 51 in the height direction in the back of the ceiling, and protrudes into the surface of the ceiling plate 7 on the indoor side and the opening 71 of the frame 51. The lower surface of the part is adjusted so as to be arranged on the same plane.

  As described above, the hood 52 that opens downward is attached to the surface of the vertical portion 512 of the frame 51 that is opposite to the side on which the fitting protrusion 512a is formed. An upper part of the frame 51 is covered, and a storage box 5 that opens downward is formed.

  A guide rail 6 is attached to the inner wall (top plate) of the hood 52 that forms the top plate of the storage box 5, and the length direction of the storage box 5 is the length direction. By fitting the fitting member 23 provided on the arm 2 of the spotlight 1 described above, the above-described spotlight 1 can be mounted in the storage box 5.

  As shown in an enlarged view in FIG. 11, the guide rail is formed in a substantially C-shaped cross section that opens downward, and thereby the fitting portion 23 is fitted with the flange portion 232 of the fitting member 23 therein. A groove 61 is formed, and an opening edge 61a of the fitting groove 61 is fitted into a groove 231 formed in the circumferential direction of the fitting member 23, so that the flange portion 232 of the fitting member 23 is fitted. Is inserted into the fitting groove 61 so that the fitting member 23 cannot be pulled out downward, the fitting member 23 can be slid in the length direction of the guide rail 6, and The fitting member 23, that is, the arm 2 and the spotlight body 3 attached thereto can be rotated around the center of the fitting member 23.

  In the embodiment shown in FIGS. 11 and 12, the height of the storage box 5 is relatively low in FIG. 11 and the height of the storage box 5 is relatively high in FIG. When there is a limit, or when it is desired to irradiate the light from the spotlight 1 without being blocked by the opening edge, or when it is desired to expose a part of the spotlight from the opening 71 or the like, FIG. The spotlight main body 3 may be disposed close to the opening 71 using a soundproof box 5 having a relatively low height as shown in FIG. When it is desired to make it difficult to be recognized, the height of the storage box 5 is used depending on the purpose or purpose such as using the storage box 5 having a relatively high height as shown in FIG. Change And it can also be.

[Action]
In the spotlight arm 2 of the present invention configured as described above, the tip of the arm main body 21 and the spotlight main body 3 are connected by the connecting rod 22 as described above. As shown in FIG. 10, it is possible to move the axial stop position of the spotlight body 3 to any position on the circular orbit which is the swing range of the other end 22b of the connecting rod 22, and this connecting rod The spotlight main body 3 is swung at the rocking position of the other end 22b of 22 so that the irradiation direction of the spotlight main body 3 can be directed in all 360 ° directions from each position on the circular orbit.

  In particular, when the fitting member 23 provided at the base end portion (base portion 211) of the arm body 21 is fitted to the guide rail 6 so as to be rotatable, the arm 2 is centered on the fitting member 23. By rotating the, the irradiation direction is variable in all directions of 360 ° in plan view, and by combining these, the irradiation direction of the spotlight 1 can be changed to various directions.

  As described above, the spotlight arm 2 of the present invention has the arm deformed via the connecting portion between the arm body 21 and the connecting rod 22, and the spotlight main body 3 held on the other end 22b of the connecting rod 22 The spotlight 1 provided with the spotlight arm 2 can be embedded in the ceiling in combination with the storage box 5 by being capable of swinging and further by rotatably mounting the arm 2 to the guide rail 6. When configured as a spotlight unit of a type, it is possible to expand the irradiable range by the spotlight 1 without enlarging the space in the storage box 5 and making the size of the opening 71 as small as possible. Is possible.

  Here, FIG. 13 (A) to FIG. 13 (D) are explanatory views schematically showing the positional relationship between the spotlight arm 2 of the present invention and the storage box 5 (especially opening) in a side view, In the state shown in FIG. 13A where the connecting rod 22 is arranged at a position overlapping the arm portion of the arm body 21, the irradiation range of light that can be varied by swinging the spotlight body 3 is an angle θ1 in the drawing. is there.

  On the other hand, when the irradiation range is a wider angle θ2, the spotlight main body 3 is swung in the state shown in FIG. 13B in which the connecting rod 22 is arranged on the extension of the arm main body 21. The irradiation angle of the spotlight can be widened with respect to the irradiation range at the position shown in FIG. 13 (A). Moreover, when the arm 2 is deformed, a large space is not required in the storage box.

  Further, when the irradiation direction is inclined by inclining the spotlight body 3, even when light is irradiated at the same inclination angle, as shown in FIGS. 13C and 13D, the connecting rod 22 Depending on where the spotlight body 3 is placed on the circular orbit, the relative positional relationship with the opening edge can be adjusted, so that even if the light is irradiated at the same inclination angle, Irradiate without being blocked by the opening edge [FIG. 13C], or if necessary, block a part of the irradiation light by the opening edge [FIG. 13D] to adjust brightness, irradiation range, etc. In this state, it is possible to light up the target, and various effects such as illumination that cannot be achieved by a conventional ceiling-embedded spotlight unit are also possible.

1 Spotlight 2 Spotlight arm 21 Arm body
211 Base part
211a opening
212 arms 22 connecting rods
22a one end
22b Other end 23 Fitting member
231 groove
232 Flange
233 Screw hole 24 Fixing bolt 25 Handle 26, 27 Pin 3 Spotlight body 31 Body
311 Heat dissipation port
312 Stay 32 Lamp 33 Socket 34 Mirror 35 Hood 36 Cable 37 Radiation fin 38 Anti-glare cap 5 Storage box 51 Frame
511 Horizontal
511a Bent part
511b Inclined part
512 Vertical section
512a Mating protrusion 52 Hood 53 Bracket
532 vertical section
532a Fitting protrusion 6 Guide rail 61 Fitting groove
61a Opening edge 7 Ceiling plate 71 Opening 100 Spotlight 120 Spotlight arm 121 Tip portion 122 Base end portion 130 Spotlight body 150 Storage box 170 Ceiling plate 171 Opening

Claims (4)

  A spotlight body comprising a arm body and a connecting rod having one end slidably connected to a tip of the arm body, and a spotlight body provided with a lamp as a light source is slidably held at the other end of the connecting rod; A featured spotlight arm. In a spotlight body provided with a lamp that is a light source, and a spotlight provided with an arm that holds the spotlight body at the tip,
The arm is formed by an arm body and a connecting rod that is slidably connected to a tip of the arm body, and the spotlight body is slidably held at the other end of the connecting rod. To spotlight. A spotlight holding a spotlight body provided with a lamp as a light source at the tip of the arm, and a box shape that opens toward the opening formed in the ceiling plate, and the room for housing the spotlight is a ceiling In the ceiling-embedded spotlight unit composed of a combination of storage boxes defined on the back,
The arm of the spotlight is constituted by an arm main body and a connecting rod having one end connected to the tip of the arm main body so as to be swingable, and the spotlight main body is slidably held at the other end of the connecting rod. ,
A ceiling-embedded spotlight unit, wherein a base end portion of the arm body is rotatably attached to a top plate of the storage box.   The ceiling-embedded spotlight unit according to claim 3, wherein a base end portion of the arm body is slidably attached to a top plate of the storage box in a length direction of the storage box.

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