JP6246018B2 - Lamp and lighting device - Google Patents

Description

  The present invention relates to a lamp and a lighting device.

  In recent years, as an alternative to incandescent bulbs, mini-krypton bulbs and bulb-type fluorescent lamps that have been used as light sources for lighting fixtures, there are LED lamps that are bulb-type lamps using LEDs as light sources. There is also a new lighting fixture that uses organic EL as a light source.

  For example, there is a lighting fixture that emits light by sliding and mounting a rectangular organic EL in a dedicated socket (see, for example, Patent Document 1).

  In a thin downlight using a conventional lamp, the lamp is arranged obliquely in order to suppress the height of the lighting fixture. There is an LED lamp that can be attached to the thin downlight (see, for example, Patent Document 2). The LED lamp has a light emitting surface inclined so that the lower side can be irradiated with the LED lamp attached obliquely. After the LED lamp base is screwed into the socket and the LED lamp is attached to the fixture body, the LED lamp body can be rotated so that the light emitting surface faces downward.

JP 2013-51053 A International Publication No. 2012/060103

  The lighting fixture of Patent Document 1 requires a dedicated socket. Therefore, even if the technique of Patent Document 1 is applied, the rectangular organic EL cannot be attached to an existing lighting fixture.

  In the luminaire of Patent Document 2, the light emitting surface rotates in a tilted state, but the tilt angle cannot be changed. Therefore, even if the technique of patent document 2 is applicable to a thin downlight, it cannot be applied to a normal downlight.

  Moreover, in the lighting fixture of patent document 2, although the main body of an LED lamp is rotated so that a light emission surface may face downward, this is because the function as a downlight cannot be fulfilled unless the light emission surface is facing downward. . That is, the technique of Patent Document 2 does not rotate the main body of the LED lamp in order to arbitrarily adjust the direction of the light source.

  If the light source of the bulb-shaped lamp is replaced with a rectangular organic EL and this lamp is attached to a normal downlight, the light source is not circular, so the direction of the light source (rectangular direction) must be considered. That is, when the lamp cap is screwed into the socket and the lamp is mounted on the lighting fixture, the position of the light source in the rotational direction may not be the desired position.

  An object of the present invention is to make it possible to arbitrarily adjust the direction of a light source, for example, when a lamp base is screwed into a socket and the lamp is mounted on a lighting fixture.

A lamp according to one aspect of the present invention includes:
A cylindrical body with a base attached to one end and a first step provided on the outer peripheral surface on the way from one end to the other;
A light source mounting portion on one end facing the main body and a light source mounted on the other end;
An insertion hole penetrating from one end to the other end is formed, and a second step portion corresponding to the first step portion is provided on the inner peripheral surface of the insertion hole on the way from one end to the other end, A main body portion is inserted, the other end is connected to the light source mounting portion, and the second step portion presses the first step portion toward the light source mounting portion, so that the main body portion becomes the light source mounting portion. And a holding unit that holds the unit rotatably.

  In the present invention, the main body of the lamp is inserted into the insertion hole of the holding portion of the lamp, the holding portion is connected to the light source mounting portion of the lamp, and the holding portion rotatably holds the main body with respect to the light source mounting portion. For this reason, according to the present invention, it is possible to arbitrarily adjust the direction of the light source when the lamp cap is screwed into the socket and the lamp is mounted on the lighting fixture.

1 is a perspective view of a lamp according to Embodiment 1. FIG. 1 is a perspective view of a lamp according to Embodiment 1. FIG. FIG. 3 is an exploded perspective view of the lamp according to the first embodiment. FIG. 3 is an exploded perspective view of the lamp according to the first embodiment. FIG. 3 is a front view of a light emitting edge portion of the lamp according to the first embodiment. FIG. 3 is a side view of a light emitting edge portion of the lamp according to the first embodiment. The rear view and AA sectional drawing of the light emission pressing edge part of the lamp | ramp which concerns on Embodiment 1. FIG. FIG. 3 is a front view of a light emission rear surface portion of the lamp according to the first embodiment. FIG. 3 is a side view of a light emission rear surface portion of the lamp according to the first embodiment. FIG. 3 is a rear view of the light emission rear surface portion of the lamp according to the first embodiment. FIG. 3 is a front view of a power supply lid portion of the lamp according to the first embodiment. FIG. 3 is a side view of a power supply lid portion of the lamp according to the first embodiment. FIG. 3 is a rear view of the power supply lid portion of the lamp according to the first embodiment. FIG. 3 is a front view of the main body of the lamp according to the first embodiment. FIG. 3 is a side view of the main body of the lamp according to the first embodiment. FIG. 3 is a rear view of the main body of the lamp according to the first embodiment. FIG. 3 is a front view of a main body connecting portion of the lamp according to the first embodiment. FIG. 3 is a side view of a main body connecting portion of the lamp according to the first embodiment. FIG. 3 is a rear view of the main body connecting portion of the lamp according to the first embodiment. FIG. 3 is an exploded side view of the lamp according to the first embodiment. BB sectional drawing (partial sectional view) of the lamp according to Embodiment 1. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the embodiment, the directions such as “up”, “down”, “left”, “right”, “front”, “rear”, “front”, “back” are as such for convenience of explanation. However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like.

Embodiment 1 FIG.
Below, the lighting fixture which concerns on this Embodiment demonstrates the light source side (light irradiation side) as the front (front direction), and a nozzle | cap | die side back (back direction). As described above, these directions are only described as such for convenience of explanation. For example, if the present embodiment is applied to a downlight, the light source side is downward ( (Or diagonally downward), the base side is upward (or diagonally upward).

  1 and 2 are perspective views of the lamp 1 according to the present embodiment. 3 and 4 are exploded perspective views of the lamp 1. 1 and 3 are views of the lamp 1 as viewed obliquely forward and obliquely downward. 2 and 4 are views of the lamp 1 as viewed obliquely rearward and obliquely downward.

  The lamp 1 uses a rectangular organic EL 20 as a light source of a light bulb shaped lamp. Although not shown, the lamp 1 is attached to the instrument body by screwing a standard base such as an E26 base or any other shape into a socket. For example, if the lighting fixture is a downlight, the fixture body is installed by being embedded in a ceiling or the like. If the lighting fixture is a hanging type fixture, the fixture body is hung from the ceiling or the like. This embodiment can be applied to various types of lighting fixtures. That is, the instrument body may be installed at an arbitrary place.

  The lamp 1 includes a light emitting edge portion 10, an organic EL 20, a light emitting back surface portion 30, a power source lid portion 40, a main body portion 50, and a main body connecting portion 60 from the front to the rear.

  The light emission pressing edge portion 10 is a substantially quadrangular frame member when viewed from the front. A large opening having a substantially quadrangular cross section is formed inside the light emitting ledge 10 so that the organic EL 20 can be accommodated and light from the organic EL 20 can pass therethrough.

  The organic EL 20 is a substantially rectangular surface light source when viewed from the front. The front surface of the organic EL 20 emits light. Although not shown, an electrical connection portion to which a power supply wire is connected is disposed on the back surface of the organic EL 20.

  The light emission back surface part 30 is a substantially quadrilateral plate member in front view. An opening having a substantially circular cross section is formed at the center of the light emitting back surface 30. The light emitting back surface portion 30 is fitted with the light emitting pressing edge portion 10. Organic EL20 is hold | maintained because the light emission back surface part 30 and the light emission pressing edge part 10 pinch | interpose organic EL20.

  The power supply lid portion 40 is a substantially circular plate member when viewed from the front. An opening having a substantially circular cross section is formed at the center of the power supply lid 40 so that a power supply wire can be inserted.

  The main body 50 is a substantially circularly-preferred cylindrical member having openings formed on both the bottom surface and the apex. Although not shown, a lighting device that turns on the organic EL 20 by receiving power from a commercial power source supplied via a base is housed in the main body 50. The top side (rear end) of the main body 50 is tapped (threaded) so that the base can be screwed together.

  The main body connecting portion 60 is a substantially ring-shaped member in front view.

  Below, the detail of each part of the lamp | ramp 1 is demonstrated.

  FIG. 5 is a front view of the light emitting edge 10. FIG. 6 is a side view of the light emitting ledge 10. FIG. 7 is a rear view and a cross-sectional view taken along the line AA of the light emitting ledge 10. In FIG. 6, the left side is the front and the right side is the rear.

  The light emitting edge 10 is formed with an opening 11 for allowing light from the organic EL 20 to pass through and irradiating forward. The organic EL 20 is housed inside the frame of the light emitting ledge 10. The light emission pressing edge portion 10 is fitted to the light emission back surface portion 30. As a result, the organic EL 20 is sandwiched and held between the light emitting pressing edge portion 10 and the light emitting back surface portion 30.

  As shown in the AA sectional view of FIG. 7, the light emitting ledge 10 has a cross section from the rear (upper side of the AA sectional view of FIG. 7) to the front (lower side of the AA sectional view of FIG. 7). It has a three-step shape (a combination of an L shape and a square shape), and the first and second steps contact the light emitting back surface 30 and the third step contacts the organic EL 20. It is a step.

  FIG. 8 is a front view of the light emitting back surface portion 30. FIG. 9 is a side view of the light emitting back surface 30. FIG. 10 is a rear view of the light emitting back surface portion 30. In FIG. 9, the left side is the front and the right side is the rear.

  The light emission back surface part 30 is an example of a light source mounting part.

  A circular power supply opening 31 is formed in the center of the light emitting back surface 30. The power supply opening 31 is an example of a through-hole for passing an electric wire that passes from the rear end to the front end of the light emitting back surface 30. The shape of the power supply opening 31 is preferably circular, but may be other shapes such as a rectangle.

  The organic EL 20 housed in the light emitting pressing portion 10 can be attached to the front end (the other end) of the light emitting back surface portion 30. A first protrusion 33 protruding on the front surface 32 (front end surface) of the light emitting back surface portion 30 so as to contact the light emitting pressing edge portion 10 (specifically, the second step of the stepped portion described above); A second projecting portion 34 projecting to contact the back surface of the organic EL 20 is formed. The first protrusion 33 is disposed at a position where each side of the quadrangle that defines the contour of the light emitting back surface 30 is offset inward. Four second projecting portions 34 are arranged at equal intervals on a rectangular diagonal line defining the light emitting back surface portion 30. The second protrusion 34 is an example of a protrusion that protrudes from the front end of the light emitting back surface 30 and can contact the organic EL 20. The second protrusions 34 only need to be able to contact the organic EL 20, and the shape, orientation, position, size, number, and the like are not limited to those shown in FIG.

  The rear end (one end) of the light emitting back surface portion 30 faces the front end of the main body portion 50. On the back surface 35 (rear end surface) of the light emitting back surface portion 30, a rotating shaft portion 36 that rises vertically from the peripheral edge portion of the power supply opening hole 31 is formed. The rotating shaft portion 36 projects in an annular shape from the rear end of the light emitting back surface portion 30. A pair of first locking portions 37 protruding outward are formed on a part of the outer peripheral surface of the rotating shaft portion 36. The first locking portion 37 is an example of a rotation limiting portion that limits the rotation of the main body portion 50 within a certain range.

  The back surface 35 of the light emitting back surface portion 30 is recessed around the rotation shaft portion 36, and this portion is a recessed portion 38 that contacts the main body connecting portion 60. The center of the inner and outer periphery of the recess 38 coincides with the center of the outer periphery of the rotating shaft portion 36. The diameter of the inner periphery of the recess 38 is the same as the diameter of the outer periphery of the rotating shaft portion 36. The diameter of the outer periphery of the recess 38 is larger than the diameter of the outer periphery of the rotating shaft portion 36, but is smaller than the length of the quadrangular side that forms the outline of the light emitting back surface portion 30. Four screw holes 39 penetrating from the rear end to the front end of the light emitting back surface portion 30 are formed in the concave portion 38. The position and number of the screw holes 39 are not limited to those shown in the figure, and can be changed as appropriate.

  FIG. 11 is a front view of the power cover 40. FIG. 12 is a side view of the power cover 40. FIG. 13 is a rear view of the power cover 40. In FIG. 12, the left side is the front and the right side is the rear.

  A circular power supply hole 41 through which the electric wire passes is formed in the center of the power supply cover 40. The diameter of the power supply hole 41 is smaller than the diameter of the power supply opening hole 31 of the light emitting back surface portion 30.

  Two screw holes 42 penetrating from the rear end (one end) to the front end (the other end) of the power supply lid 40 are further formed in the power supply lid 40. Note that the position and number of the screw holes 42 are not limited to those shown in the drawings, and can be changed as appropriate.

  FIG. 14 is a front view of the main body 50. FIG. 15 is a side view of the main body 50. FIG. 16 is a rear view of the main body 50. In FIG. 15, the left side is the front and the right side is the rear.

  The main body 50 has a conical cylindrical shape.

  The rear end (one end) of the main body 50 is a portion that hits the apex of the conical shape, and an opening is formed in this portion. The rear end of the main body portion 50 is threaded to form a screw portion 55. A base (not shown) is attached to the screw portion 55.

  Although not shown, the main body 50 houses a lighting device connected to the organic EL 20 by an electric wire.

  The front end (the other end) of the main body 50 faces the rear end of the light emitting back surface 30. The front end of the main body 50 is a portion that hits the conical bottom surface. In this portion, in addition to the opening 51 for passing the electric wire, two screw holes 54 for attaching the power cover portion 40 are formed. Yes. The size of the opening 51 is substantially the same as the size of the power supply lid 40. A power supply lid 40 is attached to the front surface (front end surface) of the main body 50, and the opening 51 is closed by the power supply lid 40. The lighting device housed in the main body 50 supplies power to the organic EL 20 via an electric wire inserted into the power supply hole 41 of the power supply lid 40. Note that the position and number of the screw holes 54 are not limited to those shown in the drawings, and can be changed as appropriate.

  An annular rotating portion 52 that abuts the rotating shaft portion 36 and the first locking portion 37 of the light emitting back surface portion 30 in the front-rear direction is formed at the peripheral edge portion of the opening portion 51. The rotating part 52 is an example of a first step part. As shown in FIG. 15, a first step portion (rotating portion 52) is provided on the outer peripheral surface of the main body 50 on the way from the rear end to the front end of the main body 50. A part of the surface of the rotating portion 52 that contacts the first locking portion 37 is formed with a pair of second locking portions 53 that protrude forward and have an arcuate cross section. The rotating portion 52 rotates along the rotation shaft portion 36 of the light emitting back surface portion 30. At this time, each second locking portion 53 rotates in the direction of rotation with one first locking portion 37 of the light emitting back surface portion 30. It is possible to move in the section from the position where it abuts to the position where it abuts against the other first locking portion 37 in the rotational direction. That is, the main body 50 can rotate within a range corresponding to this section. The 2nd latching | locking part 53 is an example of a convex part. In the present embodiment, the rotation restricting portion (first locking portion 37) of the light emitting back surface portion 30 comes into contact with the outer wall surface of the convex portion (second locking portion 53) to keep the rotation of the main body portion 50 constant. Although restricted within the range, the rotation restricting portion (first locking portion 37) of the light emitting back surface portion 30 abuts against the inner wall surface of the concave portion provided at the front end of the main body portion 50 instead of the convex portion, and the main body portion 50. May be limited to a certain range.

  FIG. 17 is a front view of the main body connecting portion 60. FIG. 18 is a side view of the main body connecting portion 60. FIG. 19 is a rear view of the main body connecting portion 60. In FIG. 18, the left side is the front and the right side is the rear.

  The main body connecting part 60 is an example of a holding part.

  A circular insertion hole 61 that penetrates from the rear end (one end) to the front end (the other end) of the main body connecting portion 60 is formed at the center of the main body connecting portion 60. A groove 63 is formed on the inner peripheral surface of the insertion hole 61. The insertion hole 61 has a diameter on the front end side larger than a diameter on the rear end side with the groove 63 as a boundary. The groove part 63 is an example of a second step part. As shown in FIG. 17, the inner circumferential surface of the insertion hole 61 has a second step corresponding to the first step portion (rotating portion 52) of the main body portion 50 on the way from the rear end to the front end of the main body connecting portion 60. A portion (groove portion 63) is provided.

  On the front surface (front end surface) of the main body connecting portion 60, a connecting contact portion 62 that contacts the recess 38 of the light emitting back surface portion 30 is formed. Four screw holes 64 for connecting the light emitting back surface portion 30 are formed in the connection contact portion 62. Note that the position and number of the screw holes 64 are not limited to those shown in the drawings, and can be changed as appropriate.

  The main body 50 is inserted into the insertion hole 61 from the base side (that is, using the front end side of the insertion hole 61 as an inlet). The front end of the main body connecting portion 60 is connected to the light emitting back surface portion 30. At this time, the rotation part 52 of the main body part 50 is accommodated in the groove part 63 (that is, the first step part comes into contact with the second step part), and the connection contact part 62 is fixed to the recess 38 of the light emitting back surface part 30. The The groove portion 63 (second step portion) presses the rotating portion 52 (first step portion) of the main body portion 50 toward the light emitting back surface portion 30, so that the main body portion 50 is rotatable with respect to the light emitting back surface portion 30. Retained.

  Hereinafter, the assembly of the lamp 1 will be described.

  FIG. 20 is an exploded side view of the lamp 1. FIG. 21 is a cross-sectional view (partial cross-sectional view) of the lamp 1 taken along the line BB. In FIG. 21, the left side is the front and the right side is the rear.

The lamp 1 is assembled by the procedures (1) to (4) shown in FIG.
(1) The power supply lid 40 is attached to the main body 50 (the screw 72 is screwed into the screw hole 54 of the main body 50 through the screw hole 42 of the power supply lid 40), and the opening 51 of the main body 50 is closed.
(2) The rotating shaft portion 36 of the light emitting back surface portion 30 is brought into contact with the rotating portion 52 of the main body portion 50.
(3) The main body portion 50 is inserted into the insertion hole 61 of the main body connecting portion 60, and the light emitting back surface portion 30 is connected to the main body connecting portion 60 (the screw 71 is threaded through the screw hole 39 of the light emitting back surface portion 30). Screwed into hole 64). At this time, since the rotating part 52 (first step part) of the main body part 50 comes into contact with the groove part 63 (second step part) of the main body connecting part 60, the main body part 50 is rotatable with respect to the light emitting back surface part 30. Retained.
(4) The light emitting ledge 10 containing the organic EL 20 is attached to the light emitting back surface 30. At this time, the organic EL 20 is electrically connected to the lighting device inside the main body 50 by an electric wire inserted in order through the power supply hole 41 of the power supply lid 40 and the power supply opening 31 of the light emitting back surface 30.

  As shown in FIG. 21, it is connected to the organic EL 20 by a gap (step) C generated between the front surface 32 of the light emitting back surface portion 30 and the front surfaces of the first projecting portion 33 and the second projecting portion 34 of the light emitting back surface portion 30. It is possible to prevent the electric wires to be crushed between the back surface of the organic EL 20 and the front surface 32 of the light emitting back surface portion 30. That is, in the present embodiment, when the main body 50 rotates with respect to the light emitting back surface 30, the height of the second protruding portion 34 formed at least between the front end of the light emitting back surface 30 and the organic EL 20. The electric wire can move in the gap C. For this reason, when adjusting the direction of organic EL20 by rotation, it can prevent that an electric wire is crushed, pulled, or twisted about an electric wire.

  Further, in the present embodiment, when the main body 50 rotates with respect to the light emitting back surface 30, it is formed at least between the rear end of the light emitting back surface 30 and the peripheral portion of the opening 51 of the main body 50. The electric wire can move in a gap (step) D corresponding to the height of the rotating shaft portion 36 of the light emitting back surface portion 30. For this reason, when adjusting the direction of organic EL20 by rotation, it can prevent that an electric wire is crushed, pulled, or twisted about an electric wire. In addition, in this Embodiment, since the power supply cover part 40 is used, although the height of the clearance gap D will reduce correspondingly, the power supply cover part 40 is still arrange | positioned rather than the front surface 32 of the light emission back surface part 30. By doing so, a certain gap D is secured.

  As described above, in the present embodiment, the lamp 1 includes the light emitting back surface portion 30 having the rotating shaft portion 36, the main body portion 50 having the rotating portion 52 in contact with the rotating shaft portion 36, and the light emitting back surface. Since the main body connecting portion 60 that is connected to the portion 30 and rotatably holds the main body portion 50 is provided, the direction of the angular light source can be easily adjusted.

  Further, the step C and the step D can reduce the electric wire load accompanying the rotation.

  In the present embodiment, the organic EL 20 having a square light emitting surface is used as the light source of the lamp 1, but instead of the organic EL 20, an organic EL having a circular or other light emitting surface, or a light emitting device. Other types of light sources may be used, such as LED light sources with arbitrary shapes on the surface (for example, a plurality of LEDs covered with a diffusion cover). In that case, it is desirable to use a light source that does not change the direction of light irradiation (or stays within a certain range) even if the light distribution changes when it rotates. By using such a light source, a desired light distribution can be obtained simply by changing the position (orientation) of the light source in the rotation direction when the base of the lamp 1 is screwed into the socket and the lamp 1 is mounted on the lighting fixture. Can do.

  As mentioned above, although embodiment of this invention was described, you may implement this embodiment partially. For example, only one of those described as “parts” in the description of this embodiment may be adopted, or some arbitrary combinations may be adopted. In addition, this invention is not limited to this embodiment, A various change is possible as needed.

  DESCRIPTION OF SYMBOLS 1 lamp | ramp, 10 light emission edge part, 11 opening part, 20 organic EL, 30 light emission back surface part, 31 power supply opening hole, 32 front surface, 33 1st protrusion part, 34 2nd protrusion part, 35 back surface, 36 rotating shaft part, 37 First locking portion, 38 concave portion, 39 screw hole, 40 power supply lid portion, 41 power supply hole, 42 screw hole, 50 main body portion, 51 opening portion, 52 rotating portion, 53 second locking portion, 54 screw hole, 55 Screw part, 60 Main body connection part, 61 Insertion hole, 62 Connection contact part, 63 Groove part, 64 Screw hole, 71 Screw, 72 Screw

Claims (7)

A cylindrical body with a base attached to one end and a first step provided on the outer peripheral surface on the way from one end to the other;
A light source mounting portion on one end facing the main body and a light source mounted on the other end;
An insertion hole penetrating from one end to the other end is formed, and a second step portion corresponding to the first step portion is provided on the inner peripheral surface of the insertion hole on the way from one end to the other end, A main body portion is inserted, the other end is connected to the light source mounting portion, and the second step portion presses the first step portion toward the light source mounting portion, so that the main body portion becomes the light source mounting portion. A lamp having a holding portion that is rotatably held with respect to the lamp. The main body portion houses a lighting device connected by the light source and an electric wire,
The light source mounting part is formed with a through-hole for passing the electric wire, which penetrates from one end of the light source mounting part to the other end, and protrudes from the other end of the light source mounting part. Possible protrusions are provided,
When the main body rotates with respect to the light source mounting portion, the electric wire is formed in a gap corresponding to the height of the protruding portion formed between the other end of the light source mounting portion and the light source. The lamp of claim 1, wherein the lamp moves. The other end of the main body is formed with an opening for passing the electric wire,
The light source mounting portion is provided with an annular rotating shaft that protrudes from one end of the light source mounting portion and contacts the peripheral edge of the opening,
When the main body rotates with respect to the light source mounting portion, a gap formed between the one end of the light source mounting portion and the peripheral edge of the opening is formed in the gap corresponding to the height of the rotation shaft portion. The lamp according to claim 2, wherein the electric wire moves. The other end of the main body is provided with a convex portion or a concave portion,
One end of the light source mounting portion is provided with a rotation restricting portion that contacts the outer wall surface of the convex portion or the inner wall surface of the concave portion and restricts the rotation of the main body portion within a certain range. The lamp according to any one of claims 1 to 3.   5. The lamp according to claim 1, wherein a light source having a square light emitting surface is mounted as the light source at the other end of the light source mounting portion.   The lamp according to claim 1, wherein an organic EL is mounted as the light source at the other end of the light source mounting portion. A lamp according to any one of claims 1 to 6;
An illumination device comprising: a socket into which a base attached to a main body of the lamp is screwed.

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