JP2010010123A - Luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a large light distribution area by projecting a lamp fitting 2 from a frame unit 3, and to expand light distribution extent which is capable of being chosen by a user by expanding a rotation range of the lamp-fitting 2. <P>SOLUTION: A luminaire comprises: the lamp fitting 2; an arm unit 5 fitted to the lamp fitting 2; a rotation axis unit 24 fitted to an end of the arm unit 5; a lamp fitting stopper unit 21 which restricts rotation of the lamp fitting 2 by being attached to the lamp fitting 2 so that a projection amount α of projected base of the lamp fitting 2 is increased by rotating the lamp fitting 2 around a rotation axis unit 24 in one direction; and the frame unit 3, having a notch stopper unit 20 which restricts the rotation of the lamp fitting 2, by being attached to the arm unit 5 so that a projection amount β of the projected base of the lamp fitting 2 is smaller than the projection amount α by rotating the lamp-fitting 2 around the rotation axis unit 24 in the other direction. Accordingly, a user can choose one from among a case for using a light distribution for reducing a radiation loss from a lamp 8, and a case for reducing the projected amount of the projected base of the lamp fitting 2 from the frame unit 3, according to the application. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technique for changing a light distribution angle of a lighting fixture.

  There is a technique related to a lamp that can be swung in a lighting fixture (see, for example, Patent Document 1).

JP 11-273446 A (paragraph “0010”, FIG. 1)

  However, if the lamp is swung in the lighting fixture, the lamp body is shielded from the light by the fixture main body, so that it has not always been possible to efficiently obtain the irradiation of the lamp.

  Further, since the rotation direction of the lamp is one direction, the light distribution that can be selected by the user is limited.

  An object of the present invention is, for example, to obtain a wide light distribution area by projecting a lamp of a lighting fixture from a frame portion.

  Another object of the present invention is to widen the light distribution range that can be selected by the user by, for example, widening the rotation range of the lamp.

  The luminaire according to the present invention includes a lamp, an arm part having one end attached to the lamp, a rotating shaft part to which the other end of the arm part is attached, and the lamp being rotated to one side around the rotating shaft part. A first stopper portion that abuts the lamp and restricts the rotation of the lamp, and the rotation so that a first protruding amount at which a tip portion on one end of the bottom surface of the lamp protrudes increases. Rotating the lamp to the other side around the shaft portion, the second projection amount for projecting the tip portion on the other end side of the bottom surface of the lamp is smaller than the first projection amount, A frame portion having a second stopper portion that abuts on the arm portion and restricts the rotation of the lamp.

  According to the present invention, it is possible to select the light distribution that reduces the irradiation loss of the lamp or the suppression of the protruding amount by which the bottom surface of the lamp protrudes from the frame portion according to the usage.

FIG. 3 is a perspective view showing the lighting apparatus in the first embodiment. FIG. 3 is a perspective view showing the lighting apparatus in the first embodiment. 3 is an exploded perspective view showing the lighting apparatus in Embodiment 1. FIG. FIG. 3 is a diagram illustrating a side view of the lighting fixture in the first embodiment. FIG. 4 is a cross-sectional view taken along the line B-B ′ of the lighting fixture in the first embodiment. FIG. 3 is a side view showing a turning state of the lamp of the lighting fixture in the first embodiment. 3 is a top view of the lighting apparatus in Embodiment 1. FIG. FIG. 3 is a C-C ′ cross-sectional view of the frame portion in the first embodiment. FIG. 3 is a side view showing a turning state of the lamp of the lighting fixture in the first embodiment. 3 is a top view of the lighting apparatus in Embodiment 1. FIG. FIG. 3 is a cross-sectional view taken along the line D-D ′ in the first embodiment. FIG. 10 is a perspective view showing a lighting fixture in a second embodiment. FIG. 10 is a bottom view showing a lighting fixture in a second embodiment. FIG. 10 is a cross-sectional view taken along line A-A ′ of the lighting fixture in the second embodiment. FIG. 10 is an exploded perspective view showing a lighting fixture in a second embodiment. FIG. 10 is an exploded partial perspective view showing a lighting fixture in a second embodiment. FIG. 10 is a partial cross-sectional view showing a lighting fixture in a second embodiment.

Embodiment 1 FIG.
The structure of the lighting fixture of this Embodiment is demonstrated using FIGS.

  1 is a perspective view showing the lighting fixture of the present embodiment, FIG. 2 is a perspective view showing the lighting fixture when the lighting fixture of FIG. 1 is viewed obliquely from above, and FIG. 2 is an exploded perspective view of the lighting fixture of FIG. 2, FIG. 4 is a side view in the direction A of the lighting fixture of FIG. 2, and FIG. 5 is a cross-sectional view of the lighting fixture of FIG.

  The luminaire 1 includes a lamp 2, a frame portion 3, an attachment spring 4 attached to the outer periphery of the frame portion 3, and an arm portion with one end attached to the inner periphery of the frame portion 3 and the other end attached to the lamp 2. 5 is provided.

  The lamp 2 includes a lamp body portion 6 and a lamp reflecting portion 7 extending from one end side of the lamp body portion 6.

  The lamp body portion 6 has a substantially cylindrical shape, and includes a socket portion 9 to which a lamp 8 is attached at one end side of the substantially cylindrical shape.

  The socket part 9 has a lamp socket 10 to which the lamp 8 is attached and a socket attachment part 12 for fixing the lamp socket 10 with a socket attachment screw 11.

  The lamp reflector 7 has a substantially conical shape, the top of the substantially conical shape is connected to the lamp body 6, and the bottom of the substantially conical shape is open to reflect light from the lamp 8 built in the lamp 2. The reflecting plate 13 is provided. Moreover, it has the arm attachment part 14 which protrudes in a horizontal direction with respect to a bottom face from the substantially cone-shaped top vicinity.

  The arm portion 5 has a substantially “<” shape on the front surface and a substantially “L” shape on the side surface. One end of the “<” shape has a rotating shaft mounting hole 15 attached to the frame portion 3, and the other end of the “<” shape and one surface of the substantially “L” shape are the lamp reflector 7. The lamp mounting hole 16 is attached to the arm mounting portion 14.

  The frame portion 3 has a substantially brimmed cap shape with the brim portion 17 as a bottom surface, and is open on both the top surface and the bottom surface.

  Further, the frame portion 3 is provided on the inner surface of the substantially cylindrical portion against the rotary shaft fixing hole 18 and the notch portion 19 and the arm portion 5 on which the arm portion 5 slides when the lamp 2 is rotated. In contact therewith, there is a notch stopper portion 20 that restricts the rotation of the lamp 2 and a lamp stopper portion 21 that abuts the lamp 2 when the lamp 2 is rotated and restricts the rotation of the lamp 2.

  In addition, the flange part 17 arrange | positioned at the bottom face side of the frame part 3 is larger than the diameter of a ceiling embedding hole, and contacts the circumference | surroundings of a ceiling embedding hole when attaching the lighting fixture 1 to a ceiling embedding hole. The lighting fixture 1 is attached by being sandwiched between the elastic portion 22 of the mounting spring 4 described later.

  Moreover, the arm attachment part 14 is each arrange | positioned on the straight line which passes along the center point of the substantially circle which becomes a cross section of a horizontal direction through the lamp | ramp reflection part 7, and it is connected with the lamp attachment hole 16 with the arm attachment screw | thread 14a and the arm attachment nut 14b. Fasten together to fix the arm 5.

  Further, the rotation shaft fixing hole 18 is provided at a position that is asymmetric with respect to the side surface of the luminaire 1 in one direction from the center.

  Further, the rotation shaft attachment hole 15 of the arm portion 5 and the rotation shaft fixing hole 18 of the frame portion 3 are attached by a rotation shaft 23 such as a screw to form a rotation shaft portion 24.

  The mounting spring 4 has a substantially “L” shape on the side surface, and when the lighting fixture 1 is attached to the ceiling embedding hole, a locking claw 25 that is caught in the ceiling embedding hole, and the lighting fixture 1 in the ceiling embedding hole. It is provided with an elastic portion 22 that is elastically deformed when attached to the ceiling and holds (attaches) the lighting fixture 1 to the ceiling embedded hole by elastic force after being inserted into the ceiling embedded hole.

  Next, operation | movement of each part when rotating the lamp 2 to one direction is demonstrated using FIGS.

  6 is a side view when the lamp of the lighting fixture is rotated in one direction, FIG. 7 is a top view of the lighting fixture shown in FIG. 6, and FIG. 8 is a frame of FIG. It is CC 'sectional drawing of a part.

  When the lamp 2 is rotated in one direction, the rotating shaft 24 is in a position in one direction from the center, so that the bottom surface (tip) of the lamp reflector 7 gradually protrudes from the frame 3. When the lamp 2 is rotated, the lamp 2 gradually comes into contact with the lamp stopper portion 21 and the rotation of the lamp 2 is restricted.

  Thus, when the lamp 2 comes into contact with the lamp stopper portion 21, the protrusion amount α at which the tip of the bottom surface of the lamp reflecting portion 7 protrudes from the frame portion 3 is maximized.

  Therefore, the light of the lamp 8 built in the lamp 2 is not blocked by the frame portion 3. In addition, the light distribution angle of the lighting fixture 1 at this time is about 45 degrees.

  The rotation of the lamp 2 is held by the frictional force between the arm part 5 and the frame part 3 (frictional force of the rotating shaft part 24). Even if the lamp 2 rotates when the lamp 2 does not, the lamp 2 comes into contact with the lamp stopper portion 21 and the rotation is restricted, so that the entire lamp reflector 7 does not protrude beyond the frame portion 3.

  Next, operation | movement of each part when rotating the lamp 2 to another direction is demonstrated using FIGS. 9-11.

  9 is a side view when the lamp of the lighting fixture is rotated in the other direction, FIG. 10 is a top view of the lighting fixture shown in FIG. 9, and FIG. 11 is a frame of FIG. It is DD 'sectional drawing of a part.

  Next, when the lamp 2 is rotated to the other side, the rotating shaft 24 is positioned in one direction from the center, so that the bottom surface (tip) of the lamp reflector 7 is gradually stored inside the frame 3. It will be done. When the lamp 2 is further rotated, the arm portion 5 gradually enters the notch portion 19 and comes into contact with the notch stopper portion 20 to restrict the rotation of the lamp 2.

  Thus, when the arm part 5 contacts the notch stopper part 20, the protrusion amount β protruding from the bottom surface of the lamp reflecting part 7 than the frame part 3 is smaller than the protrusion amount α.

  Therefore, although the light of the lamp 8 built in the lamp 2 is shielded by the frame portion 3, the projection amount β by which the lamp reflecting portion 7 protrudes from the ceiling surface is reduced, so that the design is improved. In addition, the light distribution angle of the lighting fixture 1 at this time is about 30 degrees.

  Further, since the arm portion 5 has a “<” shape, when the arm portion 5 is in contact with the notch stopper portion 20, the positional relationship between the rotary shaft portion 24 and the arm attachment portion 14 is determined by illumination. The lamp 2 falls down in the E direction on the vertical line in the state where the fixture 1 is mounted in the ceiling mounting hole or beyond the vertical line.

  Therefore, even when vibrations that are not intended by the user are applied while the arm portion 5 is in contact with the notch stopper portion 20, the lamp 2 is rotated by the frictional force between the arm portion 5 and the frame portion 3 and the weight of the lamp 2. It can suppress moving. In particular, when the notch stopper portion 20 is provided so that the lamp 2 falls in the E direction beyond the perpendicular, there is an effect of suppressing rotation due to vibrations that are not intended by the user.

  In this way, when the light emitted from the luminaire 1 is desired to be taken efficiently or when the design of the ceiling surface is desired to be improved, the lamp 2 can be rotated to cope with each application. .

  Moreover, since the arm part 5 attached to the frame part 3 arrange | positions the rotating shaft part 24 in the position where it becomes asymmetrical when it sees from the side surface (surface to which the rotating shaft part 24 is attached) of the frame part 3, it is a lamp. When 2 is rotated, the bottom surface of the lamp 2 protrudes from the frame part 3 or the bottom surface of the lamp 2 can be moved in a complicated manner.

  Further, by providing the rotating shaft portion 24 inside the frame portion 3, the shape of the front surface of the arm portion 5 is a “<” shape and the shape of the side surface is a simple shape such as an “L” shape. For example, when the rotary shaft portion 24 is provided outside the frame portion 3 and the arm portion 5 is arranged outside, the shape of the arm portion 5 is complicated so as to avoid a structural wall arranged in the height direction of the frame portion 3. It must be made larger, and it will become larger.

  On the other hand, since the arm portion 5 is arranged inside the frame portion 3, the cutout portion 19 is formed so as to cut the inner wall of the frame portion 3 corresponding to the portion where the arm portion 5 is movable so that the arm portion 5 does not interfere. May be provided.

  Therefore, since the rotary shaft 24 and the arm part 5 are provided on the inner wall of the frame part 3, the shape of the arm part 5 and the shape of the frame part 3 are not complicated, neither the shape of the arm part 5 nor the shape of the frame part 3 is complicated. The shape can be made compact.

  In the present embodiment, when the lighting fixture 1 is attached to the ceiling embedding hole, the angle with respect to the vertical direction is α when the arm portion 5 is in contact with the notch stopper portion 20, and the lamp is in contact with the lamp stopper portion. The relationship between the angle α and the angle β has been described in the case where the protrusion amount α <β.

  In the present embodiment, when the lamp 2 is rotated and the projection amount when the lamp 2 contacts the notch stopper portion 20 is α, and the projection amount when the lamp 2 contacts the lamp stopper portion 21 is β, the projection amount The relationship between α and the protrusion amount β has been described for the case where α <β.

  In addition, while making the notch depth of the notch stopper part 20 with which the frame part 3 is provided deeper and increasing the height of the lamp stopper part 21, the relationship between the protrusion amount α and the protrusion amount β is α> β. Good.

  Although not shown, the frame portion 3 is provided with an attachment spring 4 on the outer periphery, the attachment frame portion 26 attached to the ceiling embedding hole, and the lamp 2 is attached via the arm portion 5, and the inner periphery of the attachment frame portion 26. By dividing into the lamp mounting frame portion 27 that is rotatably mounted on the surface, the lamp mounting frame portion 27 can be rotated 360 ° (or 180 °) after the lighting fixture 1 is mounted in the ceiling embedding hole.

  Thus, by comprising the frame part 3 with the attachment frame part 26 and the lamp attachment frame part 27, while rotating the lamp attachment frame 27 and rotating the lamp 2 according to a user's use application, it is possible. As a result, the movable range of the lamp 2 becomes wider, and the irradiation range can be arbitrarily changed.

Embodiment 2. FIG.
The present embodiment is different in the structure of the stopper portion of the first embodiment.

  In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the present embodiment, for convenience of explanation, the operation of rotating the lamp in the horizontal direction with respect to the lower surface of the frame portion is referred to as rotation or horizontal rotation, and the operation of rotating the lamp in the vertical direction with respect to the lower surface of the frame portion. It may be called rotation or vertical rotation.

  The structure of the lighting fixture of this Embodiment is demonstrated using FIGS.

  FIG. 12 is a perspective view showing the lighting fixture of the present embodiment, FIG. 13 is a bottom view showing the lighting fixture when the lighting fixture of FIG. 12 is viewed from below, and FIG. FIG. 15 is an exploded perspective view of the luminaire of FIG. 12, and FIG. 16 is an exploded perspective view of the luminaire of FIG. 15 when viewed from another angle. It is a disassembled partial perspective view.

  The luminaire 1a includes a lamp 2a, a frame portion 3a, an attachment spring 4a attached to the outer periphery of the frame portion 3a, a substantially U-shaped band portion 28 attached to the upper portion of the frame portion 3a, and a rotation to this band. And an arm part 5a to which the lamp 2a is attached at the tip part.

  The lamp 2a includes a lamp main body 29 and a connecting portion 30 that is attached to the upper side of the lamp main body 29 and on both sides thereof. Further, on the lower surface side of the lamp main body 29, the lamp 8 a, a reflection portion 59 having a reflection surface for reflecting light emitted from the lamp 8 a toward the lower surface of the lamp main body 29, and the reflection portion 59 on the lamp main body 29. And a cover portion 60 to be fixed. In addition, on the upper surface side of the lamp body 29, a heat radiating plate 61 for radiating heat generated by the lamp 8a is provided.

  The connecting portion 30 has a mounting screw insertion portion 31 attached to the lamp body 29 on one end side, a rotating shaft fixing hole 32 and a movable stopper claw 33 on the other end side, and a right angle around the center of one end side and the other end side. It is bent and formed. The connecting portion 30 is attached to the lamp body 29 by inserting an attachment screw 34 into the attachment screw insertion portion 31 and screwing the attachment screw 34 into an attachment screw fixing hole 35 of the lamp body 29.

  The rotation shaft fixing hole 32 is formed by burring, and the rotation shaft 36 is difficult to come off when the rotation shaft 36 described later is screwed.

  The movable stopper claw 33 is formed by being cut and raised from the other end side of the connecting portion 30 (in the vicinity of the rotation shaft fixing hole 32).

  The frame portion 3a has a cylindrical shape, and an upper surface and a lower surface of the cylindrical shape are open, and a collar portion that protrudes outward in the cylindrical shape is provided on the lower surface.

  The attachment spring 4a is formed by bending in a V shape, has an attachment screw insertion portion 38 into which an attachment screw 37 is inserted on one end side, and is engaged with an embedding hole provided on the ceiling on the other end side. It has the elastic part 22 to join. The attachment spring 4a is attached to the frame portion 3a by attaching an attachment screw 37 to the attachment screw insertion portion 38 and screwing the attachment screw 37 into an attachment screw fixing hole 39 of the frame portion 3a.

  The band portion 28 is formed to be bent in a “U” shape, has a horizontal rotation shaft rotation stop portion 40 at the center portion, and has a mounting screw insertion hole 41 at the tip portion. The band portion 28 is attached to the frame portion 3a by the attachment screw 42 being inserted into the attachment screw insertion hole 41 and the attachment screw 42 being screwed into the attachment screw fixing hole 43 of the frame portion 3a.

  The horizontal rotation shaft rotation stopping portion 40 has a shape having a straight line portion and a circular arc portion in which a circular portion is cut out.

  The arm part 5a is bent so that the front surface has a “U” shape, and the side surface is formed in a “U” shape. The arm portion 5a includes a horizontal rotation shaft insertion portion 44 at the center portion and a rotation shaft attachment hole 45 at the tip portion. Further, the arm portion 5 a includes a horizontal rotation stopper claw 46 formed by being cut and raised from the arm portion 5 a around the horizontal rotation shaft insertion portion 44, and an arc-shaped movable portion 47 centering on the rotation shaft attachment hole 45. I have.

  In the present embodiment, the rotation shaft fixing hole 32, the rotation shaft 36, and the rotation shaft attachment hole 45 may be collectively referred to as a rotation shaft portion.

  The movable portion 47 includes a first stopper portion 48 into which the movable stopper claw 33 is inserted and the movable stopper claw 33 contacts, and a second stopper portion 49.

  The horizontal rotation shaft 50 has a cap shape with a brim, a fixed portion 51 larger than the diameter of the horizontal rotation shaft insertion portion 44, a rotation portion 52 inserted into the horizontal rotation shaft insertion portion 44, and a tip than the rotation portion 52. The screw part 53 and the flat planar part 54 which are threaded by the part side are provided.

  The rotation stop ring 55 is formed in an O-ring shape, and includes a rotation stopper convex portion 56 protruding in the outer peripheral direction of the O-ring and a protrusion portion 57 protruding in a triangular shape in the inner peripheral direction of the O-ring.

  Two protrusions 57 are provided on the inner periphery of the rotation stop ring 55 so as to face each other. The protrusions 57 come into contact with the flat surface portion 54 of the horizontal rotation shaft 50 to restrict the rotation of the rotation stop ring 55. .

  The horizontal rotation shaft 50 is inserted into the horizontal rotation shaft insertion portion 44 of the arm portion 5 a, the inner periphery of the rotation prevention ring 55, and the horizontal rotation shaft rotation prevention portion 40, and a nut 58 is attached to the screw portion 53 of the horizontal rotation shaft 50. The arm portion 5a and the rotation stop ring 55 are rotatably attached to the band portion 28.

  The cross-section in the insertion direction of the horizontal rotation shaft 50 is substantially the same shape as the shape of the horizontal rotation shaft rotation stopper 40, and the horizontal rotation shaft 50 and the horizontal rotation shaft rotation stopper 40 come into contact with each other. 50 is prevented from rotating.

  When the lamp 2a (arm portion 5a) is rotated in one horizontal direction, the rotation stopper projection 56 of the rotation stop ring gradually contacts the rotation stopper claw 46, and then the projection 57 of the rotation stop ring 55 The flat part 54 of the horizontal rotating shaft 50 is contacted and the rotation of the lamp 2a in the horizontal direction is restricted. In addition, when the lamp 2a (arm portion 5a) is rotated in the other horizontal direction, the lamp 2a operates in the same manner to restrict the rotation of the lamp 2a in the horizontal direction. Thus, the rotation stop ring 50 allows the lamp 2a (arm portion 5a) to rotate 360 ° or more in the horizontal direction. Further, since the rotation of the lamp 2a (arm portion 5a) in the horizontal direction is restricted by the rotation stop ring, the lamp 2a does not rotate more than necessary in the horizontal direction, and the electric wire connected to the lamp 2a. There is no fear of being twisted and cut.

  FIG. 17 is a partial cross-sectional view when the frame portion of the lighting apparatus shown in FIG. 12 is cut along B-B ′, and shows the movable state of the lamp. FIG. 17A is a partial cross-sectional view when the lower surface of the lamp is directed downward, and FIG. 17B is a partial cross-sectional view illustrating a state in which the lamp is rotated in one direction. 17 (c) is a partial cross-sectional view showing a state in which it is rotated in a different direction different from FIG. 17 (b).

  When the irradiation direction of the lamp 2a is directed directly below the lower surface of the frame portion 3a, the lower surface of the lamp 2a is substantially parallel to the lower surface of the frame portion 3a, and the movable stopper claw 33 is positioned at the approximate center of the movable portion 47. .

  When the arm portion 5a is attached to the lamp 2a, the line connecting the rotation shaft attachment holes 32 is in an eccentric position with respect to the diameter of the lower surface of the lamp body 29 (lamp 2a). The lamp 2a rotates around the rotation shaft 36. Therefore, when the lamp 2a is rotated in one direction (G direction), the lower end of the lamp opposite to the rotating shaft 36 protrudes downward from the lower surface of the frame 3a. Further, when the lamp 2a is rotated in one direction, the movable stopper claw 33 comes into contact with the first stopper 48 to restrict the rotation of the lamp 2a.

  Therefore, since the lamp 2a can be protruded from the lower surface of the frame portion 3a by the first stopper 48, the light from the lamp 8a is not easily blocked by the inner wall of the frame portion, and can be efficiently irradiated.

  When the arm portion 5a is attached to the lamp 2a, the line connecting the rotary shaft attachment holes 32 is in an eccentric position with respect to the diameter of the lower surface of the lamp 2a. The lamp 2a rotates around the rotation shaft 36. Therefore, when the lamp 2a is rotated in the other direction (H direction), the lower surface end of the lamp 2a opposite to the rotation shaft 36 is accommodated inward from the lower surface of the frame 3a. Further, when the lamp 2a is rotated in the other direction, the movable stopper claw 33 comes into contact with the second stopper 49 to restrict the rotation of the lamp.

  Accordingly, since the lamp 2a can be housed inward from the lower surface of the frame portion 3a by the second stopper 49, a part of the light from the lamp 8a is shielded by the inner wall of the frame portion and is irradiated with light. Although slightly inferior, the lamp 2a does not protrude from the lower surface of the frame portion 3a, and the design can be improved.

  As described above, since the first stopper 48 and the second stopper 49 are provided, the user can arbitrarily select to improve the light efficiency or the design.

  Further, since the lamp 2a (arm portion 5a) can be rotated 360 ° by the horizontal rotation shaft 50, when the lighting fixture 1a is attached to the ceiling, the movable portion 47 (first stopper 48, second stopper 49). It can be installed without checking the position. Therefore, the user can set the area to be irradiated by rotating the lamp 2a in the horizontal direction from turning the lamp 2a and setting the vertical angle. Alternatively, after the lamp 2a is rotated in the horizontal direction, the user can set the area to be irradiated by rotating the lamp 2a.

  In the present embodiment, the case where the connecting portion 30 (the rotation shaft attachment hole 15a and the movable stopper claw 33) is attached to the lamp body 29 has been described. May be formed integrally.

  Further, in the present embodiment, the case where each part is attached by the mounting screws 34, 37, and 42 has been described, but the method of attaching each part may be riveting, welding, an adhesive, or the like.

  In this embodiment, the case where the movable stopper claw 33 is provided on the lamp 2a side and the movable part 47 is provided on the arm part 5a side has been described. However, the movable part 47 is provided on the lamp 2a side, and the movable stopper claw 33 is provided. You may provide in the arm part 5a side, and the same effect can be acquired also in this case.

  1, 1a Lighting fixture, 2, 2a Lamp, 3, 3a Frame, 4, 4a Mounting spring, 5, 5a Arm, 6 Lamp body, 7 Lamp reflector, 8, 8a Lamp, 9 Socket, 10 Lamp Socket, 11 Socket mounting screw, 12 Socket mounting portion, 13 Reflector, 14 Arm mounting portion, 14a Arm mounting screw, 14b Arm mounting nut, 15 Rotating shaft mounting hole, 16 Lamp mounting hole, 17 Head portion, 18, 18a Rotation Shaft fixing hole, 19 Notch portion, 20 Notch stopper portion, 21 Lamp stopper portion, 22, 22a Elastic portion, 23, 23a Rotating shaft, 24, 24a Rotating shaft portion, 25 Locking claw, 26 Mounting frame portion, 27 Lamp mounting Frame part, 28 Band part, 29 Lamp body, 30 Connecting part, 31 Mounting screw insertion part, 32 Rotating shaft fixing hole, 33 Movable stopper claw, 34 Attached screw, 35 Mounting screw fixing hole, 36 Rotating shaft, 37 Mounting screw, 38 Mounting screw insertion part, 39 Mounting screw fixing hole, 40 Horizontal rotating shaft rotation stop part, 41 Mounting screw insertion hole, 42 Mounting screw, 43 Mounting screw Fixed hole, 44 Horizontal rotating shaft insertion portion, 45 Rotary shaft mounting hole, 46 Horizontal rotating stopper claw, 47 Movable portion, 48 First stopper portion, 49 Second stopper portion, 50 Horizontal rotating shaft, 51 Fixed portion, 52 Rotating part, 53 Screw part, 54 Plane part, 55 Rotating stop ring, 56 Rotating stopper convex part, 57, Protruding part, 58 Nut, 59 Reflecting part, 60 Cover part, 61 Heat sink.

Claims (11)

With lamps,
An arm part having one end attached to the lamp;
A rotation shaft portion to which the other end of the arm portion is attached, a first protrusion amount that the lamp is rotated to one side around the rotation shaft portion, and a tip portion on one end side of the bottom surface of the lamp protrudes. A first stopper portion that abuts the lamp so as to restrict the rotation of the lamp, and the lamp is rotated to the other side around the rotation shaft portion so that the bottom surface of the lamp is A second stopper part that abuts against the arm part and restricts the rotation of the lamp so that a second protrusion amount that protrudes the tip part on the other end side is smaller than the first protrusion amount; A frame having
A lighting apparatus comprising: With lamps,
An arm part having one end attached to the lamp;
A rotation shaft portion to which the other end of the arm portion is attached, a first protrusion amount that the lamp is rotated to one side around the rotation shaft portion, and a tip portion on one side of the bottom surface of the lamp protrudes. The first stopper portion that abuts the lamp so as to restrict the rotation of the lamp, and the lamp is rotated to the other side around the rotating shaft portion so that the bottom surface of the lamp A second stopper portion that abuts against the arm portion and restricts the rotation of the lamp so that a second protrusion amount that protrudes the tip portion on the other end side is larger than the first protrusion amount; Having a frame portion;
A lighting apparatus comprising:   The lighting device according to claim 1, wherein the rotation shaft portion is provided such that an axis line for rotating the lamp is located at a position different from a center line of the bottom surface of the frame portion.   The lighting fixture according to any one of claims 1 to 3, wherein the first stopper portion is a lamp stopper portion provided at a peripheral frame portion at a tip in a height direction of the frame portion.   The lighting device according to any one of claims 1 to 4, wherein the rotation shaft portion is provided on an inner wall portion of the frame portion.   The lighting fixture according to claim 5, wherein the second stopper portion is a notch stopper portion provided by cutting out an inner wall of the frame portion. A lamp having a movable stopper claw;
A frame portion having an opening, to which the lamp is mounted so as to face from the opening;
An arm portion to which the frame portion is rotatably attached;
A rotating shaft portion that rotatably attaches the lamp to one end side of the arm portion;
A movable portion provided in the vicinity of the rotating shaft portion and into which the movable stopper claw is inserted;
The lamp is pivoted to one side around a portion provided on the movable portion and to which the rotating shaft portion is attached, so that a tip portion on one end side of the bottom surface of the lamp projects from the opening. A first stopper for restricting rotation of the lamp;
Rotation of the lamp is regulated so that the lamp is rotated to the other side around the portion provided on the movable part and to which the rotating shaft is attached, and the bottom surface of the lamp is stored in the frame part. A second stopper portion to
A lighting apparatus comprising: With lamps,
A frame portion having an opening, to which the lamp is mounted so as to face from the opening;
An arm portion to which the frame portion is rotatably attached;
A rotating shaft portion that rotatably attaches the lamp to one end side of the arm portion;
A movable stopper claw provided on one end side of the arm portion;
A movable part provided in the vicinity of a portion where the rotating shaft part is attached to the lamp, and the movable stopper claw inserted;
The lamp is pivoted to one side around a portion provided on the movable portion and to which the rotating shaft portion is attached, so that a tip portion on one end side of the bottom surface of the lamp projects from the opening. A first stopper for restricting rotation of the lamp;
Rotation of the lamp is regulated so that the lamp is rotated to the other side around the portion provided on the movable part and to which the rotating shaft is attached, and the bottom surface of the lamp is stored in the frame part. A second stopper portion to
A lighting apparatus comprising:   A circular arc is formed around the rotation shaft, and one end formed in the circular arc is a first stopper part, and the other end formed in the circular arc is a second stopper part. The lighting fixture of Claim 7 or Claim 8.   The illumination according to any one of claims 1 to 9, wherein a light distribution angle is 30 ° when the rotation of the lamp is restricted by contacting the first or second stopper portion. Instruments.   The illumination according to any one of claims 1 to 10, wherein the light distribution angle is 45 ° when the rotation of the lamp is restricted by contacting the first or second stopper portion. Instruments.

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