JP5146738B2 - Revolving light - Google Patents

Description

  The present invention relates to a rotating lamp.

The rotating lamp is installed on a roof of an emergency vehicle, for example, and is used as a rotating warning lamp for generating a warning signal such as a rotating flashlight. The rotating lamp has a light emitting diode (hereinafter also referred to as LED) as a light source, a reflecting mirror that reflects light from the LED in a predetermined irradiation direction, and a rotation drive mechanism that rotates the reflecting mirror. (For example, refer to Patent Document 1).
JP 2006-318885 A

However, since the LED emits directional light, if the visibility is increased by the reflected light, the reflecting mirror is enlarged. As a result, the rotating lamp becomes large. On the other hand, there is a demand for downsizing of rotating lamps. However, if the reflecting mirror is downsized, the visibility of the rotating lamp when viewed from the surroundings is lowered.
Therefore, an object of the present invention is to provide a rotating lamp that is small and has high visibility.

The rotating lamp of the present invention is a rotating lamp that emits light from a light emitting diode toward an irradiation direction intersecting the rotating axis by a reflecting mirror that is driven to rotate around a predetermined rotating axis by a rotating drive mechanism, The light emitting diode is disposed at a predetermined light source position on the rotation axis , and the reflecting mirror is formed in a rotating parabolic shape with the light source position as a focus, and the light from the light emitting diode is irradiated in the irradiation direction. a parabolic first reflecting surface for reflecting towards, is formed in a planar shape extending in a direction perpendicular to the axis of rotation, it has to face the light emitting diodes and reflects direct light from the light-emitting diode And a parabolic third reflecting surface for reflecting the reflected light reflected by the second reflecting surface in a direction including the irradiation direction. And ( Motomeko 1).

  According to the present invention, the light from the light emitting diode is converted into parallel light by the first reflecting surface and reflected in the irradiation direction. In addition, since the reflected light of the third reflecting surface is emitted in the irradiation direction, visibility from the surroundings can be enhanced. Further, since the third reflecting surface receives the reflected light from the second reflecting surface, the degree of freedom in design for reflecting the light in the irradiation direction can be increased as compared with the case of receiving the direct light from the light emitting diode. As a result, the third reflective surface can improve the visibility when viewed from the surroundings while effectively using the space. Here, the irradiation direction may include a plurality of irradiation directions. Further, the rotational paraboloid shape is intended to include a rotational paraboloid shape and a shape approximate to the rotational paraboloid shape.

In the present invention, it is preferable that the axis of symmetry of the paraboloid of rotation of the first reflecting surface intersects the rotation axis at a right angle (Claim 2). In this case, the first reflecting surface can reflect parallel light in a direction orthogonal to the rotation axis. As a result, for example, when the rotation axis is along the vertical direction, the visibility from a position far away from the rotating lamp can be enhanced.
In this invention, since the 2nd reflective surface is a plane, it is easy to design the 3rd reflective surface. In addition, when the reflected light from the first reflecting surface is reflected parallel to the direction orthogonal to the rotation axis, the reflected light from the first reflecting surface can be irradiated to the outside without being blocked by the second reflecting surface.

Moreover, in this invention, it is preferable that the said 2nd reflective surface is extended from the edge of the said 1st reflective surface regarding the direction in alignment with the said rotation axis (Claim 3 ). In this case, the space can be used more effectively while effectively using the light from the light emitting diode.
In the present invention, the third reflecting surface includes a rotating paraboloid focusing on a point symmetrical to the light source position with respect to the second reflecting surface, and the axis of symmetry of the rotating paraboloid is the axis of rotation. Is preferably crossed (claim 4 ). In this case, the third reflecting surface can radiate parallel light parallel to the symmetry axis, and visibility from the surroundings can be enhanced by the parallel light.

In the present invention, the third reflecting surface includes a plurality of said paraboloid, a direction axis of symmetry of these rotating paraboloid extends is preferably different from each other (Claim 5). In this case, since the plurality of paraboloids included in the third reflecting surface can irradiate parallel light in different directions, visibility from the surroundings can be further enhanced.
Moreover, in this invention, the said symmetry axis of the said rotation paraboloid of the said 3rd reflective surface may cross | intersect the said rotation axis at right angle (Claim 6 ). In this case, the third reflecting surface can reflect parallel light in a direction orthogonal to the rotation axis. As a result, for example, when the rotation axis is along the vertical direction, the visibility from a position far away from the rotating lamp can be enhanced.

Further, in the present invention, the third reflecting surface is formed at an outer peripheral edge portion at one end portion of the reflecting mirror with respect to a direction along the rotation axis, and when viewed in the irradiation direction, It may overlap with at least a part (Claim 7 ). In this case, the space can be used more effectively.
According to an eighth aspect of the present invention, the third reflecting surface is located in front of a light source position disposed on the rotation axis, and is in the form of three paraboloids adjacent to each other in the circumferential direction around the rotation axis. The rotating lamp according to any one of claims 1 to 7, wherein the rotating lamp includes a reflective surface.
The invention according to claim 9 has a two-stage configuration in which the light emitting diode and the reflecting mirror are arranged symmetrically vertically with respect to the rotation axis direction with the second reflecting surface as a center. The rotating lamp according to any one of claims 1 to 8.
Further, in the present invention, a sub light source position is set apart from the light source position with respect to a direction along the rotation axis, and further includes a sub light emitting diode arranged at the sub light source position, It may further include a fourth reflecting surface that is formed in a paraboloidal shape focusing on the sub light source position and reflects light from the sub light emitting diode toward the irradiation direction (claim 10 ). In this case, the light from the sub-light emitting diode is converted into parallel light by the fourth reflecting surface and reflected in the irradiation direction. Since the reflected light of the fourth reflecting surface is emitted in addition to the reflected light of the first reflecting surface and the third reflecting surface, visibility from the surroundings can be further enhanced.

In the present invention, it is preferable that the axis of symmetry of the paraboloid of the fourth reflecting surface intersects the axis of rotation at a right angle (claim 11 ). In this case, the fourth reflecting surface can reflect parallel light in a direction orthogonal to the rotation axis. As a result, for example, when the rotation axis is along the vertical direction, the visibility from a position far away from the rotating lamp can be enhanced.
In the present invention, the reflecting mirror is opposed to the sub light emitting diode in a posture intersecting the rotation axis, and reflects a direct light from the sub light emitting diode, and the fifth reflecting surface. It may further include a sixth reflecting surface that reflects the reflected light in a direction including the irradiation direction (claim 12 ). In this case, in addition to being reflected by the fourth reflecting surface in the irradiation direction, the light from the sub light emitting diode is reflected by the sixth reflecting surface via the fifth reflecting surface and emitted in the irradiation direction. . As a result, visibility from the surroundings can be improved. Further, since the sixth reflecting surface receives the reflected light from the fifth reflecting surface, the degree of design freedom for reflecting the light in the irradiation direction can be increased as compared with the case of receiving the direct light from the sub light emitting diode. As a result, the sixth reflecting surface can enhance the visibility when viewed from the surroundings while effectively using the space.

In the present invention, the fifth reflecting surface is preferably formed in a plane that intersects at right angles with the axis of rotation (claim 13). In this case, since the fifth reflecting surface is a flat surface, it is easy to design the sixth reflecting surface. Further, when the reflected light from the fourth reflecting surface is reflected in parallel to the direction orthogonal to the rotation axis, the reflected light from the fourth reflecting surface can be radiated outside without being blocked by the fifth reflecting surface.

Moreover, in this invention, it is preferable that the said 5th reflective surface is extended from the edge of the said 4th reflective surface regarding the direction in alignment with the said rotating shaft line (Claim 14 ). In this case, the space can be used more effectively while effectively using the light from the sub-light emitting diode.
In the present invention, the sixth reflecting surface includes a rotating paraboloid focusing on a point symmetrical to the sub-light source position with respect to the fifth reflecting surface, and the axis of symmetry of the rotating paraboloid is the axis of rotation. (Claim 15 ). In this case, the sixth reflecting surface can radiate parallel light parallel to the symmetry axis, and visibility can be enhanced by this parallel light.

In the present invention, the sixth reflective surface includes a plurality of said paraboloid, preferably the direction of the axis of symmetry of these rotating paraboloid extends are different from each other (claim 16). In this case, since the plurality of paraboloids included in the sixth reflecting surface can irradiate parallel light in different directions, visibility from the surroundings can be further enhanced.
Further, in the present invention, with respect to the direction along the rotation axis, the third reflecting surface is disposed outside the light source position, the sixth reflecting surface is disposed outside the sub light source position, The first, second, fourth, and fifth reflecting surfaces may be disposed between the light source position and the sub-light source position (claim 17 ). In this case, since the light emitting diode and the sub light emitting diode can be arranged at both ends of the reflecting mirror in the direction along the rotation axis, the structure for fixing the light emitting diode and the sub light emitting diode can be simplified. As a result, the space can be used more effectively.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the first embodiment, description will be made in accordance with a case where a rotating lamp is applied to a rotating warning lamp.
FIG. 1 is a cross-sectional view of a rotating warning lamp 1 to which the rotating lamp according to the first embodiment of the present invention is applied. Referring to FIG. 1, a rotation warning lamp 1 includes a rotation lamp 2 and a cylindrical outer case 3 that accommodates the rotation lamp 2. The outer case 3 includes a case main body 4 that supports the rotating lamp 2 and a glove 5 that is fixed to the case main body 4. The globe 5 is formed of a translucent member, and can transmit light from the rotating lamp 2 to the surroundings. The rotating lamp 2 emits light to the entire circumference while changing the light irradiation direction (for example, the first irradiation direction A1) around a predetermined rotation axis 6.

The central axis of the outer case 3 and the rotational axis 6 of the rotating lamp 2 are along each other and along the vertical direction Z. The bottom of the case body 4 is fixed to a predetermined installation target member 7 directly or indirectly. Here, examples of the installation target member 7 include a roof, a signboard, and a mechanical device of an emergency vehicle.
The posture of the rotation warning lamp 1 can be set freely. In the present embodiment, the rotating lamp 2 will be described based on the case where the rotating warning lamp 1 is in the above-described attitude in which the rotation axis 6 of the rotating lamp 2 is along the vertical direction Z.

  The rotating lamp 2 emits light emitted from a light emitting diode 8 (also referred to as LED 8) as a light source (main light source), a sub light emitting diode 9 (also referred to as sub LED 9) as a sub light source, and the LED 8 and the sub LED 9. A reflecting mirror 10 that reflects in a predetermined irradiation direction, for example, the first irradiation direction A1, and a rotation drive mechanism 11 that rotates the reflecting mirror 10 around the rotation axis 6 are provided. As the reflecting mirror 10 rotates around the rotation axis 6, the irradiation direction of the reflected light by the reflecting mirror 10 gradually changes. Thereby, light is irradiated toward the entire circumference in the horizontal direction.

FIG. 2 is a perspective view of the reflecting mirror 10 of the rotating lamp 2 of FIG. Referring to FIGS. 1 and 2, the irradiation direction of rotating lamp 2 is a direction in which light is reflected by reflecting mirror 10, and is specifically set for each of a plurality of reflecting surfaces of reflecting mirror 10 to be described later. The first to eighth irradiation directions A1 to A8 are included.
The rotating lamp 2 has a light source position P1 and a sub light source position P2. The light source position P1 and the sub light source position P2 are defined by the reflecting mirror 10, and the LED 8 and the sub LED 9 are to be disposed in order to emit light in the irradiation directions A1 to A8 by the reflecting mirror 10.

When the LED 8 disposed at the light source position P1 emits light, the light is reflected by the reflecting mirror 10 and irradiated in predetermined irradiation directions A1 to A4. Further, when the sub LED 9 disposed at the sub light source position P2 emits light, the light is reflected by the reflecting mirror 10 and irradiated in predetermined irradiation directions A5 to A8.
Specifically, the light source position P1 and the sub light source position P2 are disposed on the rotation axis 6 and are spaced apart from each other. The light source position P <b> 1 is disposed at the lower end 12 of the reflecting mirror 10. Further, the sub light source position P <b> 2 is disposed at the upper end portion 13 of the reflecting mirror 10.

Returning to FIG. The revolving lamp 2 includes a base 16, a light source support member 17 that supports the LED 8 in a fixed state, a reflector support member 18 that supports the reflecting mirror 10, and a sub light source support member 19 that supports the sub LED 9 in a fixed state. Is provided. The base 16 supports the light source support member 17 in a fixed state, supports the reflector support member 18 rotatably, and supports the rotation drive mechanism 11.
The LED 16 is positioned with respect to the reflecting mirror 10 by the base 16, the light source supporting member 17, and the reflecting mirror supporting member 18, and as a result, is arranged at the light source position P1. Further, the sub LED 9 is positioned with respect to the reflecting mirror 10 by the outer shell case 3, the base 16, the reflecting mirror support member 18 and the sub light source supporting member 19, and as a result, is arranged at the sub light source position P2. It has become.

  The base 16 is fixed to the case body 4, supports the LED 8 in a fixed state via the light source support member 17, and rotatably supports the reflector 10 via the reflector support member 18. The base 16 includes a plate-shaped main body 20 and a support shaft 21 protruding upward from the main body 20. The center axis of the support shaft 21 coincides with the rotation axis 6. The support shaft 21 and the main body 20 are fixed to each other, and specifically, are integrally formed by a single member.

The support shaft 21 fixes the light source support member 17 in a state where the light source support member 17 is positioned at a predetermined position in the axial direction of the support shaft 21. The light source support member 17 supports the circuit board 22. The LED 8 is supported on the conductor portion of the circuit board 22 in an electrically connected state.
The LED 8 is provided as a single unit. The LED 8 emits directional light. The LED 8 has an optical axis 23. The optical axis 23 is the direction in which the LED 8 emits light most strongly, and is along the rotation axis 6. The LED 8 emits light along the optical axis 23 upward. The light generated from the LED 8 is strongest on the optical axis 23, but also travels in a direction non-parallel to the optical axis 23.

The auxiliary light source support member 19 is fixed to the top of the globe 5 of the outer case 3 and supports the auxiliary LED 9. The sub light source support member 19 is made of, for example, a circuit board, and a conductor portion of the circuit board is electrically connected to the sub LED 9.
The sub LED 9 is provided as a single unit. Similar to the LED 8, the sub LED 9 emits directional light and has an optical axis 24. The sub LED 9 emits light along the optical axis 24 downward along the vertical direction Z. The light generated from the sub LED 9 is the strongest on the optical axis 24 but also travels in a direction non-parallel to the optical axis 23.

Further, the support shaft 21 positions the reflector support member 18 in the axial direction and the radial direction of the support shaft 21 while holding the reflector support member 18 rotatably via the bearing 25. The reflector support member 18 and the reflector 10 are fixed to each other so that they can rotate together.
The reflecting mirror support member 18 has an annular shape surrounding the LED 8 and the light source support member 17. Specifically, the reflecting mirror support member 18 has a cylindrical portion 26 supported by the support shaft 21 via a bearing 25 and an annular plate portion 27 extending radially outward from the cylindrical portion 26. doing. The cylindrical portion 26 extends in the axial direction of the support shaft 21, and the inner periphery of the cylindrical portion 26 is fitted to the outer periphery of the bearing 25. The reflecting mirror 10 is fixed to the upper surface of the annular plate portion 27. The annular plate portion 27 is rotationally driven by the rotational drive mechanism 11.

The rotation drive mechanism 11 includes an electric motor 30 as a drive source, and a plurality of power transmission members 31, 32, 33, and 34 as transmission mechanisms for transmitting rotation of the output shaft of the electric motor 30 to the reflecting mirror 10. have.
The first power transmission member 31 and the second power transmission member 32 transmit power to each other by engaging with each other. The first power transmission member 31 functions as a driving member, and the second power transmission member 32 functions as a driven member. The first power transmission member 31 is a relatively small-diameter cylindrical roller, and is fixed to the output shaft of the electric motor 30. The second power transmission member 32 is formed of a disk-shaped elastic member having a relatively larger diameter than the first power transmission member 31. The first power transmission member 31 is engaged with the engaging portion of the outer peripheral surface of the first power transmission member 31 and the engaging portion of the outer peripheral surface of the second power transmission member 32 with friction. Is transmitted to the second power transmission member 32.

The second power transmission member 32 and the third power transmission member 33 are fixed to each other via a shaft member 35 so as to rotate integrally with each other. The shaft member 35 is rotatably supported by the base 16.
The third power transmission member 33 and the fourth power transmission member 34 are engaged with each other to transmit power to each other. The third power transmission member 33 functions as a driving member, and the fourth power transmission member 34 functions as a driven member. The third power transmission member 33 is a cylindrical roller having a relatively small diameter. The fourth power transmission member 34 is a ring formed of an elastic member having a relatively large diameter as compared with the third power transmission member 33. The engagement portion on the outer peripheral surface of the third power transmission member 33 and the engagement portion on the outer peripheral surface of the fourth power transmission member 34 are engaged with each other with friction, whereby the third power transmission member 33 is engaged. Is transmitted to the fourth power transmission member 34. The fourth power transmission member 34 and the annular plate portion 27 of the reflector support member 18 are integrally formed of a single member so that they can rotate integrally with each other. Note that the annular plate portion 27 and the fourth power transmission member 34 may be formed as separate members and fixed to each other.

  FIG. 3 is a front view of the reflecting mirror 10 of FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 5 is a cross-sectional view taken along the line VV of FIG. FIG. 6 is a plan view of the reflecting mirror 10 of FIG. In the following description, the direction orthogonal to the rotation axis 6 and orthogonal to the first irradiation direction A1 described later is also referred to as the left-right direction Y or the side. Further, the direction orthogonal to the rotation axis 6 and orthogonal to the left-right direction Y is also referred to as the front-rear direction X, and the direction in which light is irradiated from the reflecting mirror 10 is also referred to as the front.

  With reference to FIGS. 1, 2, and 3, the reflecting mirror 10 includes an annular plate 38 connected to the reflecting mirror support member 18, a curved plate 40 formed on the outer edge of the annular plate 38, and the annular plate 38. The curved plate 41 that extends upward from the upper surface of the curved plate 41 faces the light source position P1, the flat plate 42 that extends forward from the upper edge of the curved plate 41, and the upper edge of the curved plate 41 that extends upward. It has a curved plate 43 that extends and faces the lower side of the sub-light source position P2, and a curved plate 44 that is connected to the upper edge of the curved plate 43 and faces the vertical plate Z in the vertical direction Z. The flat plate 42 is disposed at an equal distance from the light source position P1 and the sub light source position P2. Each of these plates 38, 40, 41, 42, 43, 44 is integrally formed by a single member.

  2 and 3, the reflecting mirror 10 includes a first reflecting surface 51, a second reflecting surface 52, a third reflecting surface 53, a fourth reflecting surface 54, a fifth reflecting surface 55, And a sixth reflecting surface 56. The respective reflecting surfaces 51, 52, 53, 54, 55, 56 are focused in the irradiation directions A1 to A8. Although not specifically illustrated, the reflecting mirror 10 includes a reflecting surface forming member that forms each reflecting surface 51, 52, 53, 54, 55, and 56 and a carrier that carries this reflecting surface forming member. doing. The carrier is made of a synthetic resin member. The reflecting surface forming member is formed of a thin film formed by aluminum vapor deposition on the surface of the carrier. Note that the reflecting surface forming member and the carrier may be formed of a single member.

  1, 4, and 5, the first reflecting surface 51 receives direct light from the LED 8 and reflects the received light toward the first irradiation direction A <b> 1. The first irradiation direction A1 is a direction orthogonal to the rotation axis 6. The 1st reflective surface 51 is formed in the rotation paraboloid shape. The focal point F1 of the paraboloid shape coincides with the light source position P1. The rotational paraboloidal symmetry axis S1 (line passing through the focal point F1 and the apex) intersects the rotational axis 6 at a right angle and is parallel to the first irradiation direction A1. The first reflecting surface 51 has an intersection C1 with the rotation axis 6 (corresponding to an intersection with the optical axis 23 of the LED 8). The 1st reflective surface 51 is formed in the concave curved surface of the curved board 41, and has covered the light source position P1 from upper direction, back, and the left-right side.

  With reference to FIGS. 1, 3, and 4, the second reflecting surface 52 is disposed to face the LED 8 so as to intersect the rotation axis 6, and reflects the direct light from the LED 8. The reflection direction at this time is a direction that intersects obliquely downward with respect to the rotation axis 6, and is a direction from the second reflection surface 52 toward the third reflection surface 53. The reflected light from a part of the second reflecting surface 52 reaches the third reflecting surface 53, and the reflected light from the other part of the second reflecting surface 52 is irradiated downward around the rotating lamp 2.

  The second reflecting surface 52 faces the LED 8 along a direction inclined obliquely with respect to the rotation axis 6. The second reflecting surface 52 is disposed in front of the LED 8 (the direction in which light is emitted from the rotating lamp 2). The second reflecting surface 52 is formed in a plane that intersects the rotation axis 6 at a right angle. Specifically, the extended surface of the second reflecting surface 52 intersects the rotation axis 6 at a right angle. The second reflecting surface 52 extends from the end edge 57 of the first reflecting surface 51 on the side far from the light source position P <b> 1 in the direction X <b> 1 along the rotation axis 6, and is formed on the lower surface of the flat plate 42.

With reference to FIGS. 1, 2, and 3, the third reflection surface 53 includes a first partial reflection surface 61, a second partial reflection surface 62, and a third partial reflection surface 63. Yes. The first partial reflection surface 61, the second partial reflection surface 62, and the third partial reflection surface 63 are arranged adjacent to each other in the circumferential direction around the rotation axis 6.
2, 4, 5, and 6, the first partial reflection surface 61 reflects the reflected light from the second reflection surface 52 in the second irradiation direction A <b> 2. The first partial reflection surface 61 is formed in a rotational paraboloid shape. The focal point F2 of the paraboloid shape coincides with the symmetry point P11 of the light source position P1 with respect to the second reflecting surface 52. The rotational paraboloidal symmetry axis S2 intersects the rotation axis 6 at a right angle and is parallel to the second irradiation direction A2. The first partial reflection surface 61 is formed on the concave curved surface of the curved plate 40. The second irradiation direction A2 is a direction orthogonal to the rotation axis 6 and is parallel to the first irradiation direction A1.

  The second partial reflection surface 62 reflects the reflected light from the second reflection surface 52 toward the third irradiation direction A3. The second partial reflection surface 62 is formed in a paraboloid shape. The focal point F3 of the paraboloid shape coincides with the symmetry point P11 of the light source position P1 with respect to the second reflecting surface 52. The axis of symmetry S3 of the rotational paraboloid shape intersects the rotation axis 6 at a right angle and is parallel to the third irradiation direction A3. The second partial reflection surface 62 is formed on the concave curved surface of the curved plate 40, and is adjacent to the first partial reflection surface 61 in the circumferential direction around the rotation axis 6.

The third irradiation direction A3 is a direction orthogonal to the rotation axis 6 and is inclined obliquely to the second irradiation direction A2. The third irradiation direction A3 and the second irradiation direction A2 form a predetermined angle D1, for example, an acute angle, when viewed along the rotation axis 6.
The third partial reflection surface 63 reflects the reflected light from the second reflection surface 52 toward the fourth irradiation direction A4. The third partial reflection surface 63 is formed in a rotational paraboloid shape. The focus F4 of the paraboloid shape coincides with a symmetry point P11 that is symmetric with respect to the light source position P1 with respect to the second reflection surface 52. The rotational paraboloidal symmetry axis S4 intersects the rotational axis 6 at right angles and is parallel to the fourth irradiation direction A4. The third partial reflection surface 63 is formed on the concave curved surface of the curved plate 40, and is adjacent to the first partial reflection surface 61 in the circumferential direction around the rotation axis 6.

  The fourth irradiation direction A4 is a direction orthogonal to the rotation axis 6 and is inclined obliquely to the second irradiation direction A2. The fourth irradiation direction A4 and the second irradiation direction A2 form a predetermined angle D2, for example, an acute angle, when viewed along the rotation axis 6. When viewed along the rotation axis 6, the fourth irradiation direction A 4 and the third irradiation direction A 3 are opposite to each other with respect to the plane X 10 including the second irradiation direction A 2 and the rotation axis 6. ing. The predetermined angle D2 formed by the fourth irradiation direction A4 and the second irradiation direction A2 is equal to the predetermined angle D1 formed by the third irradiation direction A3 and the second irradiation direction A2.

  The parabolic focal points F2, F3, and F4 of the first to third partial reflection surfaces 61, 62, and 63 of the third reflection surface 53 coincide with each other and also coincide with the sub-light source position P2. ing. The rotational paraboloidal symmetry axes S2, S3, S4 of the first to third partial reflection surfaces 61, 62, 63 of the third reflection surface 53 are different from each other with respect to the circumferential direction around the rotation axis 6. Extending along. Each of the symmetry axes S2, S3, S4 intersects the rotation axis 6 at right angles. Further, when viewed along the rotation axis 6, the symmetry axes S <b> 2, S <b> 3, S <b> 4 intersect each other.

  2, 4, 5, and 6, the fourth reflecting surface 54 receives the direct light from the sub-LED 9 and reflects the received light toward the fifth irradiation direction A <b> 5. The fifth irradiation direction A5 is a direction orthogonal to the rotation axis 6 and is parallel to the first irradiation direction A1. The 4th reflective surface 54 is formed in the rotation paraboloid shape. The focal point F5 of the paraboloid shape coincides with the sub light source position P2. The rotational paraboloidal symmetry axis S5 (line passing through the focal point F5 and the apex) intersects the rotational axis 6 at a right angle and is parallel to the fifth irradiation direction A5. The fourth reflecting surface 54 has an intersection C2 with the rotation axis 6 (corresponding to an intersection with the optical axis 24 of the sub LED 9). The fourth reflecting surface 54 is formed on the concave curved surface of the curved plate 43, and surrounds the sub light source position P2 from below, rearward, and left and right sides.

  The fifth reflecting surface 55 is disposed so as to face the sub LED 9 so as to intersect the rotation axis 6, and reflects the direct light from the sub LED 9. The reflection direction at this time is a direction that crosses obliquely upward with respect to the rotation axis 6 and is a direction from the fifth reflection surface 55 toward the sixth reflection surface 56. The fifth reflecting surface 55 faces the sub LED 9 along a direction inclined obliquely with respect to the rotation axis 6. The fifth reflecting surface 55 is disposed in front of the sub LED 9. The fifth reflecting surface 55 is formed in a plane that intersects the rotation axis 6 at a right angle. Specifically, the extended surface of the fifth reflecting surface 55 intersects the rotation axis 6 at a right angle. The fifth reflecting surface 55 extends from the edge 64 of the fourth reflecting surface 54 on the side far from the sub light source position P2 in the direction X1 along the rotation axis 6 and is formed on the upper surface of the flat plate 42. .

The sixth reflecting surface 56 has a first reflecting surface portion 71, a second reflecting surface portion 72, and a third reflecting surface portion 73. The first reflecting surface portion 71, the second reflecting surface portion 72, and the third reflecting surface portion 73 are arranged adjacent to each other in the circumferential direction around the rotation axis 6.
The first reflecting surface portion 71 reflects the reflected light from the fifth reflecting surface 55 toward the sixth irradiation direction A6. The first reflecting surface portion 71 is formed in a rotational paraboloid shape. The focal point F6 of the rotational paraboloid shape coincides with the symmetry point P12 of the sub light source position P2 with respect to the fifth reflecting surface 55. The rotational paraboloidal symmetry axis S6 obliquely intersects the rotational axis 6 at a predetermined angle D3 and is parallel to the sixth irradiation direction A6. The first reflecting surface portion 71 is formed on the concave curved surface of the curved plate 44. The sixth irradiation direction A6 is a direction that intersects obliquely downward with a predetermined angle D3 with respect to the rotation axis 6. The sixth irradiation direction A6 and the fifth irradiation direction A5 are parallel to each other when viewed along the rotation axis 6.

  The second reflecting surface portion 72 reflects the reflected light from the fifth reflecting surface 55 toward the seventh irradiation direction A7. The second reflecting surface portion 72 is formed in a rotational paraboloid shape. The rotational paraboloid focus F7 coincides with the symmetry point P12 of the sub-light source position P2 with respect to the fifth reflecting surface 55. The rotational paraboloidal symmetry axis S7 crosses the rotation axis 6 obliquely at a predetermined angle D4 and is parallel to the seventh irradiation direction A7. The second reflective surface portion 72 is formed on the concave curved surface of the curved plate 44, and is adjacent to the first reflective surface portion 71 in the circumferential direction around the rotation axis 6.

The seventh irradiation direction A7 is a direction intersecting obliquely downward with a predetermined angle D4 with respect to the rotation axis 6. The predetermined angle D4 formed by the seventh irradiation direction A7 and the rotation axis 6 is equal to the predetermined angle D3 formed by the sixth irradiation direction A6 and the rotation axis 6.
The seventh irradiation direction A7 is inclined laterally with respect to the sixth irradiation direction A6. The seventh irradiation direction A7 and the sixth irradiation direction A6 form a predetermined angle D5, for example, an acute angle, when viewed along the rotation axis 6.

  The third reflecting surface portion 73 reflects the reflected light from the fifth reflecting surface 55 toward the eighth irradiation direction A8. The 3rd reflective surface part 73 is formed in the rotation paraboloid shape. The focal point F8 of the paraboloid shape coincides with a symmetry point P12 that is symmetric with respect to the sub light source position P2 with respect to the fifth reflection surface 55. The axis of symmetry S8 of the paraboloid of rotation is obliquely intersected with the rotation axis 6 at a predetermined angle D6, and is parallel to the eighth irradiation direction A8. The third reflective surface portion 73 is formed on the concave curved surface of the curved plate 44, and is adjacent to the first reflective surface portion 71 in the circumferential direction around the rotation axis 6.

The eighth irradiation direction A8 is a direction that intersects obliquely downward with a predetermined angle D6 with respect to the rotation axis 6. A predetermined angle D6 formed by the eighth irradiation direction A8 and the rotation axis 6 is made equal to a predetermined angle D3 formed by the sixth irradiation direction A6 and the rotation axis 6.
The eighth irradiation direction A8 is inclined laterally with respect to the sixth irradiation direction A6. The eighth irradiation direction A8 and the sixth irradiation direction A6 form a predetermined angle D7, for example, an acute angle, when viewed along the rotation axis 6. Further, when viewed along the rotation axis 6, the eighth irradiation direction A 8 and the seventh irradiation direction A 7 are opposite to each other with respect to the plane X 11 including the sixth irradiation direction A 6 and the rotation axis 6. It is intended to be suitable for. A predetermined angle D7 formed by the eighth irradiation direction A8 and the sixth irradiation direction A6 is equal to a predetermined angle D5 formed by the seventh irradiation direction A7 and the sixth irradiation direction A6.

  The paraboloidal focal points F6, F7, and F8 of the first to third reflecting surface portions 71, 72, and 73 of the sixth reflecting surface 56 coincide with each other and also coincide with the light source position P1. Yes. The symmetry axes S6, S7, S8 of the paraboloid shape of the first to third reflecting surface portions 71, 72, 73 of the sixth reflecting surface 56 are different from each other with respect to the circumferential direction around the rotation axis 6. Extending along. Each of the symmetry axes S6, S7, and S8 intersects the rotation axis 6 obliquely downward. Further, when viewed along the rotation axis 6, the symmetry axes S 6, S 7, S 8 intersect each other.

  The seventh irradiation direction A7 of the second reflection surface portion 72 of the sixth reflection surface 56 and the third irradiation direction A3 of the second partial reflection surface 62 of the third reflection surface 53 are along the rotation axis 6. Are parallel to each other. The eighth irradiation direction A8 of the third reflection surface portion 73 of the sixth reflection surface 56 and the fourth irradiation direction A4 of the third partial reflection surface 63 of the third reflection surface 53 are along the rotation axis 6. Are parallel to each other.

  The first reflecting surface 51, the second reflecting surface 52, the fifth reflecting surface 55, and the fourth reflecting surface 54 are adjacent to each other in the order described here with respect to the direction X1 along the rotation axis 6, and the light source position P1. It is arranged between the sub light source position P2. The first reflecting surface 51 is disposed between the second reflecting surface 52 and the third reflecting surface 53. Further, the second reflecting surface 52 and the third reflecting surface 53 are opposed to each other.

  The third reflecting surface 53 is disposed outward from the first reflecting surface 51 and disposed outward from the light source position P1 with respect to the direction X1 along the rotation axis 6. Since the position outside the light source position P1 with respect to the direction X1 along the rotation axis 6 is behind the LED 8 (opposite to the light emitting direction of the LED 8), direct light from the directional LED 8 tends not to reach. is there. Since the 3rd reflective surface 53 was provided in such a position, it contributes to effective utilization of a space.

  Further, the third reflecting surface 53 is curved as an outer edge portion of the reflecting mirror 10 in the radial direction X2 around the rotating axis 6 at the lower end 12 of the reflecting mirror 10 in the direction X1 along the rotating axis 6. It is formed on the plate 40. Direct light from the directional LED 8 tends to hardly reach the outer edge of the reflecting mirror 10. Since the 3rd reflective surface 53 is arrange | positioned in such an outer edge part, it contributes to effective utilization of a space.

The third reflecting surface 53 overlaps with the third power transmission member 33 and the fourth power transmission member 34 that are part of the rotation drive mechanism 11 when viewed along the first irradiation direction A1. Are arranged. With respect to the direction X1 along the rotation axis 6, the distance between the third reflecting surface 53 and the rotation drive mechanism 11 can be shortened, which contributes to effective use of space.
The fourth reflecting surface 54 is disposed between the fifth reflecting surface 55 and the sixth reflecting surface 56. Further, the fifth reflecting surface 55 and the sixth reflecting surface 56 are opposed to each other.

The sixth reflecting surface 56 is disposed outward from the fourth reflecting surface 54 in the direction X1 along the rotation axis 6 and is disposed outward from the sub light source position P2. Similar to the third reflecting surface 53, the sixth reflecting surface 56 is arranged behind the sub LED 9, which contributes to effective use of space.
Further, the sixth reflecting surface 56 is a curved plate as an outer edge portion of the reflecting mirror 10 in the radial direction X2 centered on the rotating axis 6 at the upper end portion 13 of the reflecting mirror 10 in the direction X1 along the rotating axis 6. 44. Direct light from the directional sub LED 9 tends not to reach the outer edge of the reflecting mirror 10. Since the 6th reflective surface 56 is arrange | positioned in such an outer edge part, it contributes to effective utilization of a space.

The sixth reflecting surface 56 is disposed so as to overlap the sub LED 9 and the sub light source support member 19 when viewed along the first irradiation direction A1. With respect to the direction X1 along the rotation axis 6, the distance between the sixth reflecting surface 56, the sub LED 9 and the sub light source support member 19 can be shortened, which contributes to effective use of space.
As described above, in the rotating lamp 2 according to the embodiment of the present invention, the light from the LED 8 intersects the rotational axis 6 by the reflecting mirror 10 that is rotationally driven around the predetermined rotational axis 6 by the rotational drive mechanism 11. The rotating lamp 2 emits light in the first to eighth irradiation directions A1 to A8. The LED 8 is disposed at a predetermined light source position P <b> 1 on the rotation axis 6, and the optical axis 23 is set along the rotation axis 6. The reflecting mirror 10 is (1) formed as a rotating paraboloid with the light source position P1 as the focal point F1, and reflects the light from the LED 8 toward the first irradiation direction A1, and (2 2) a second reflecting surface 52 that faces the LED 8 in a posture crossing the rotation axis 6 and reflects direct light from the LED 8, and (3) the reflected light from the second reflecting surface 52 is second to fourth. And a third reflecting surface 53 that reflects toward the irradiation directions A2, A3, and A4.

  According to the present embodiment, the light from the LED 8 is converted into parallel light by the first reflecting surface 51 and reflected in the first irradiation direction A1. In addition to this, since the second reflecting surface 52 faces the LED 8 so as to intersect the rotation axis 6, the emitted light from the LED 8 radiates in a direction inclined forward with respect to the optical axis 23. Can be reflected toward the third reflecting surface 53 (this light is directed toward the outside of the first reflecting surface 51). The reflected light of the third reflecting surface 53 is emitted in the second to fourth irradiation directions A2, A3, A4. As a result, visibility from the surroundings can be improved.

Moreover, since the 3rd reflective surface 53 receives the reflected light from the 2nd reflective surface 52, compared with the case where it receives the direct light from LED8, the design freedom for reflecting light to irradiation direction A2, A3, A4 is free. The degree can be increased. As a result, the third reflective surface 53 can enhance the visibility when viewed from the surroundings while effectively using the space.
For example, the third reflecting surface 53 is disposed in a place where the third reflecting surface 53 tends to be difficult to use for reflecting the direct light from the LED 8, for example, the outer peripheral edge of the end 12 of the reflecting mirror 10. High visibility can be obtained by the reflected light.

In particular, since the third reflecting surface 53 is disposed on the outer peripheral edge of the end 12 of the reflecting mirror 10, for example, the entire reflecting surface when viewed from the surroundings without significant change of the rotation drive mechanism 11 is used. The size of can be increased. As a result, the visibility of the rotating lamp 2 can be easily increased.
In the present embodiment, the first reflecting surface 51 preferably includes a paraboloid of revolution, and the axis of symmetry S1 of the paraboloid of revolution preferably intersects the axis of rotation 6 at a right angle. In this case, the first reflecting surface 51 can reflect parallel light in a direction orthogonal to the rotation axis 6. As a result, for example, when the rotation axis 6 is along the vertical direction Z, the visibility from a position far away from the rotating lamp 2 can be enhanced.

Moreover, it is preferable for the 1st reflective surface 51 to cross | intersect the optical axis 23 of LED8 to improve visibility. Strong light along the optical axis 23 can be reliably irradiated to the surroundings by the first reflecting surface 51.
In the present embodiment, the second reflecting surface 52 is preferably formed in a plane that intersects the rotation axis 6 at a right angle. In this case, since the second reflecting surface 52 is a flat surface, the third reflecting surface 53 can be easily designed. For example, when the first to third partial reflection surfaces 61, 62, and 63 of the third reflection surface 53 are formed in a paraboloid shape, the focal points F2, F3, and F4 of these paraboloid shapes are It is possible to easily match the symmetry point P11 of the light source position P1 with respect to the two reflecting surfaces 52. As a result, the visibility of the third reflecting surface 53 can be enhanced. Further, when the reflected light from the first reflecting surface 51 is reflected in the direction orthogonal to the rotation axis 6, the reflected light from the first reflecting surface 51 can be irradiated outside without being blocked by the second reflecting surface 52.

Here, in the plane that intersects the rotation axis 6 at a right angle, the intersection of the plane and the rotation axis 6 is inside the outline of the plane, and the intersection of the plane and the rotation axis 6 is the outline of the plane. And the case of being outside. The same applies to the fifth reflecting surface 55.
In the present embodiment, the second reflecting surface 52 is preferably extended from the edge 57 of the first reflecting surface 51 in the direction X1 along the rotation axis 6. In this case, the space can be used more effectively while effectively using the light from the LED 8.

The plane of the second reflecting surface 52 extends from the edge 57 of the first reflecting surface 51 on the side far from the light source position P1 with respect to the direction X1 along the rotation axis 6. It is preferable to improve the visibility.
In the present embodiment, each of the first to third partial reflection surfaces 61, 62, 63 of the third reflection surface 53 has a focal point F <b> 2 that is symmetrical with respect to the light source position P <b> 1 with respect to the second reflection surface 52. Included are paraboloids F3 and F4. The axis of symmetry S2, S3, S4 of each of these paraboloids intersects the axis of rotation 6. In this case, the third reflecting surface 53 can radiate parallel light parallel to the symmetry axes S2, S3, and S4, and visibility from the surroundings can be enhanced by the parallel light.

  Moreover, in this embodiment, the 3rd reflective surface 53 contains the 1st, 2nd and 3rd partial reflective surface 61, 62, 63 as several rotation paraboloid, and these rotation paraboloid surfaces are symmetrical. The directions in which the axes S2, S3, S4 extend (corresponding to the second to fourth irradiation directions A2, A3, A4) are preferably different from each other. In this case, since the plurality of paraboloids included in the third reflecting surface 53 can irradiate parallel light in different directions, visibility from the surroundings can be further enhanced.

For example, the symmetry axes S <b> 2, S <b> 3, S <b> 4 of the plurality of paraboloids included in the third reflecting surface 53 are different from each other in the circumferential direction about the rotation axis 6. Thereby, since the second to fourth irradiation directions A2, A3, and A4 are different in the circumferential direction, the reflected light from the third reflecting surface 53 is visually recognized when the rotating lamp 2 is viewed from a predetermined position in the periphery. Can be made longer.
In the present embodiment, the symmetry axes S 2, S 3, S 4 of the paraboloid of the third reflecting surface 53 intersect with the rotation axis 6 at a right angle. In this case, the third reflecting surface 53 can reflect parallel light in a direction orthogonal to the rotation axis 6. As a result, for example, when the rotation axis 6 is along the vertical direction Z, the visibility from a position far away from the rotating lamp 2 can be enhanced.

  In the present embodiment, the third reflecting surface 53 is formed on the curved plate 40 as the outer peripheral edge portion at the one end portion 12 of the reflecting mirror 10 in the direction X1 along the rotation axis 6. The third reflecting surface 53 overlaps the third and fourth power transmission members 33 and 34 as a part of the rotation drive mechanism 11 when viewed in the first irradiation direction A1. In this case, the space can be used more effectively. Note that the third reflecting surface 53 may be disposed so as to overlap the entire rotation drive mechanism 11 when viewed in the first irradiation direction A1.

  In the present embodiment, a sub-light source position P2 is set apart from the light source position P1 with respect to the direction X1 along the rotation axis 6, and a sub-LED 9 disposed at the sub-light source position P2 is further provided. . The reflecting mirror 10 further includes a fourth reflecting surface 54 that is formed in the shape of a rotating paraboloid with the sub-light source position P2 as the focal point F5 and reflects the light from the sub-LED 9 toward the fifth irradiation direction A5. . Thereby, the light from the sub LED 9 is converted into parallel light by the fourth reflection surface 54 and reflected in the fifth irradiation direction A5. Since the reflected light of the fourth reflecting surface 54 is emitted in addition to the reflected light of the first reflecting surface 51 and the third reflecting surface 53, visibility from the surroundings can be further enhanced.

In the present embodiment, the fourth reflecting surface 54 includes a paraboloid of revolution, and the axis of symmetry S5 of the paraboloid of revolution intersects the axis of rotation 6 at a right angle. In this case, the fourth reflecting surface 54 can reflect parallel light in a direction orthogonal to the rotation axis 6. As a result, when the rotation axis 6 is set along the vertical direction Z, the visibility from a position far away from the rotating lamp 2 can be improved.
Further, it is preferable that the fourth reflecting surface 54 intersects with the optical axis 24 of the sub LED 9 in order to improve visibility. Strong light along the optical axis 24 can be reliably irradiated to the surroundings by the fourth reflecting surface 54.

  Further, the reflecting mirror 10 of the present embodiment faces the sub LED 9 in a posture intersecting with the rotation axis 6, reflects the direct light from the sub LED 9, and the reflected light by the fifth reflecting surface 55. And a sixth reflecting surface 56 that reflects the light toward the sixth to eighth irradiation directions A6 to A8. In this case, since the fifth reflecting surface 55 faces the sub LED 9 so as to intersect the rotation axis 6, the emitted light from the sub LED 9 is radiated in a direction inclined with respect to the optical axis 24. Light (this light is directed toward the outside of the fourth reflecting surface 54) can be reflected toward the sixth reflecting surface 56. In addition to being reflected by the fourth reflecting surface 54 in the fifth irradiation direction A5, the light from the sub LED 9 is reflected by the sixth reflecting surface 56 via the fifth reflecting surface 55, and the irradiation directions A5 to A8. To be emitted. As a result, visibility from the surroundings can be improved.

Further, since the sixth reflecting surface 56 receives the reflected light from the fifth reflecting surface 55, the degree of freedom in design for reflecting the light in the irradiation directions A6 to A8 as compared with the case where the sixth reflecting surface 56 receives the direct light from the sub-LED 9. Can be high. As a result, the sixth reflecting surface 56 can enhance the visibility when viewed from the surroundings while effectively using the space.
In the present embodiment, the fifth reflecting surface 55 is preferably formed in a plane that intersects the rotation axis 6 at a right angle. In this case, since the fifth reflecting surface 55 is a flat surface, the sixth reflecting surface 56 can be easily designed. For example, the parabolic focal points F 6, F 7, F 8 of the first to third reflecting surface portions 71, 72, 73 of the sixth reflecting surface 56 are symmetrical with respect to the fifth light reflecting surface 55. It can be easily matched with P12. As a result, the visibility of the sixth reflecting surface 56 can be improved. Further, when the reflected light from the fourth reflecting surface 54 is reflected in parallel to the direction orthogonal to the rotation axis 6, the reflected light from the fourth reflecting surface 54 can be irradiated to the outside without being blocked by the fifth reflecting surface 55. .

In the present embodiment, the fifth reflecting surface 55 extends from the edge 64 of the fourth reflecting surface 54 in the direction X <b> 1 along the rotation axis 6. Thereby, the space can be used more effectively while effectively using the light from the sub-LED 9.
The plane of the fifth reflecting surface 55 extends from the edge 64 of the fourth reflecting surface 54 on the side far from the sub-light source position P2 with respect to the direction X1 along the rotation axis 6. It is preferable to increase the visibility of 56.

The second reflecting surface 52 and the fifth reflecting surface 55 are preferably formed on surfaces opposite to each other of the flat plate 42 that forms a part of the reflecting mirror 10. In this case, the space can be used more effectively.
In the present embodiment, each of the first to third reflecting surface portions 71, 72, 73 of the sixth reflecting surface 56 has a focal point F6 that is symmetrical with respect to the sub-light source position P2 with respect to the fifth reflecting surface 55 as a focal point F6. The paraboloids F7 and F8 are included. The axis of symmetry S6, S7, S8 of each of these paraboloids intersects the axis of rotation 6. In this case, the sixth reflecting surface 56 can radiate parallel light parallel to the symmetry axes S6, S7, and S8, and visibility can be enhanced by the parallel light.

  Further, in the present embodiment, the sixth reflecting surface 56 includes first to third reflecting surface portions 71, 72, 73 as a plurality of rotating paraboloids, and symmetry axes S6, S6 of these rotating parabolas. The directions in which S7 and S8 extend (corresponding to the sixth to eighth irradiation directions A6, A7, and A8) are different from each other. Thereby, since the several paraboloid contained in the 6th reflective surface 56 can irradiate parallel light in a mutually different direction, the visibility from the circumference | surroundings can be improved further.

For example, the symmetry axes S <b> 6, S <b> 7, S <b> 8 of the plurality of paraboloids included in the sixth reflecting surface 56 are different from each other in the circumferential direction around the rotation axis 6. Thereby, since the sixth to eighth irradiation directions A6, A7, and A8 are different from each other in the circumferential direction, the reflected light from the sixth reflecting surface 56 is visually recognized when the rotating lamp 2 is viewed from a predetermined position in the periphery. Can be made longer.
The symmetry axes S6, S7, S8 of the paraboloids of the first to third reflecting surface portions 71, 72, 73 of the sixth reflecting surface 56 intersect obliquely downward with respect to the rotation axis 6. . In this case, since the sixth reflecting surface 56 can reflect the parallel light downward, the visibility from the lower side of the rotating lamp 2 can be improved.

  In the present embodiment, with respect to the direction X1 along the rotation axis 6, the third reflecting surface 53 is disposed outward from the light source position P1, and the sixth reflecting surface 56 is disposed outward from the sub light source position P2. The first, second, fourth, and fifth reflecting surfaces 51, 52, 54, and 55 may be disposed between the light source position P1 and the sub light source position P2. In this case, since the LED 8 and the sub LED 9 can be arranged at both end portions 12 and 13 of the reflecting mirror 10 with respect to the direction X1 along the rotation axis 6, the structure for fixing the LED 8 and the sub LED 9 can be simplified. As a result, the space can be used more effectively.

In addition, by arranging the second and fifth reflecting surfaces 52 and 55 at equal distances from the light source position P1 and the sub-light source position P2, the reflecting surface becomes substantially rectangular when viewed from the first irradiation direction A1. Visible, the center of this becomes brighter. Therefore, the visibility can be further enhanced.
In the present embodiment, the first irradiation direction A1 of the first reflecting surface 51 of the reflecting mirror 10 is orthogonal to the rotation axis 6, but is not limited to this. For example, there may be a case where the first irradiation direction A1 intersects the rotation axis 6 obliquely, for example, downward. In this case, the visibility when viewed from below can be improved. Similarly, the second to fifth irradiation directions A2 to A5 may be obliquely intersected with the rotation axis 6. Further, the sixth to eighth irradiation directions A8 intersect with the rotation axis 6 obliquely downward, but are not limited thereto, and may be, for example, obliquely upward or orthogonal to the rotation axis 6. You may do it. Further, the first to eighth irradiation directions A1 to A8 may be parallel to each other or different from each other. The same applies to a second embodiment described later.

Moreover, the following modifications can be considered about this embodiment. In the following description, the difference from the above-described embodiment will be mainly illustrated, and this point will be mainly described. Although explanation is omitted about other composition, it is the same as that of the above-mentioned embodiment, and attaches the same numerals.
For example, FIG. 7 is a side view of a signal indicator lamp to which the rotating lamp according to the second embodiment of the present invention is applied, and a part of the signal indicator lamp is shown in cross section. Referring to FIG. 7, a signal indicator lamp 101 includes a top cover 102 as a unit disposed at the top of the signal indicator lamp 101, a display unit 103 that emits light to display a signal, and a base of the signal indicator lamp 101. And a base unit 104 disposed near the end. For example, three display units 103 are provided, but at least one display unit 103 may be provided.

  The plurality of units 102, 103, 104 described above can be stacked in the stacking direction S and can be connected in a stacked state. For example, each of the units 102, 103, 104 described above has a cylindrical shape with a circular cross section. The units 102, 103, and 104 are stacked and connected to each other such that the cylindrical central axes of the units 102, 103, and 104 coincide with each other. Thereby, the signal indicator lamp 101 is comprised. The signal indicator lamp 101 has a columnar shape that is long in the stacking direction, and is installed on the installation target member 7, for example, the upper surface of the automatic machine, with the stacking direction along the vertical direction Z, for example. In addition, although the installation attitude | position of the signal indicator lamp 101 is not limited to the above-mentioned attitude | position, in this embodiment, it demonstrates according to the case where the lamination direction of the signal indicator lamp 101 follows the up-down direction Z.

The base unit 104 has a power supply device that supplies power to the display unit 103. The end of the base unit 104 is attached to the installation target member 7.
The display unit 103 includes a translucent globe 105 as a cylindrical outer case and a rotating lamp 106 accommodated in the globe 105. The rotating lamp 106 is supported by the globe 105.

FIG. 8 is a cross-sectional view of the rotating lamp 106 of FIG. FIG. 9 is a perspective view of the reflecting mirror of FIG. With reference to FIG. 8 and FIG. 9, the rotating lamp 106 of the present embodiment is different from the rotating lamp 2 of the first embodiment in the following points, and the other configurations are the same.
The rotating lamp 106 receives the LED 8, the reflecting mirror 107 that receives the light emitted from the LED 8 and reflects it in a predetermined irradiation direction A 1 to A 4, and the rotational drive that rotates the reflecting mirror 107 around a predetermined rotation axis 6. Mechanism 108. As the reflecting mirror 107 rotates around a predetermined rotation axis 6, the irradiation directions A <b> 1 to A <b> 4 of the reflected light by the reflecting mirror 107 gradually change. As a result, light is emitted toward the entire circumference in the horizontal direction. The rotating lamp 106 does not have the sub light source position P2 and the sub LED 9. The rotating lamp 106 has the light source position P1, but does not have the sub light source position P2. The reflecting mirror 107 is obtained by eliminating the upper half of the reflecting mirror 10 of the first embodiment.

The reflecting mirror 107 and the rotation driving mechanism 108 of the rotating lamp 106 according to the present embodiment are different from the reflecting mirror 10 and the rotation driving mechanism 11 of the rotating lamp 2 according to the first embodiment in the following points, and other configurations. About the same.
The rotation drive mechanism 108 includes an electric motor 30 as a drive source, and first and second power transmission members 31 and 32 as transmission mechanisms for transmitting the rotation of the electric motor 30 to the reflecting mirror 107. ing.

  The first power transmission member 31 and the second power transmission member 32 transmit power to each other by engaging with each other. The first power transmission member 31 functions as a driving member, and the second power transmission member 32 functions as a driven member. The first power transmission member 31 is a relatively small-diameter cylindrical roller, and is fixed to the output shaft of the electric motor 30. The second power transmission member 32 has an annular shape that is relatively larger in diameter than the first power transmission member 31 and is formed of a single member with the annular plate 38 so that the second power transmission member 32 can rotate integrally with the annular plate 38 of the reflecting mirror 107. It is integrally formed. When the engaging portion on the outer peripheral surface of the first power transmission member 31 and the engaging portion on the inner peripheral surface of the second power transmission member 32 engage with each other with friction, the first power transmission member The rotation of 31 is transmitted to the second power transmission member 32. The annular plate 38 and the second power transmission member 32 may be formed as separate members and fixed to each other.

FIG. 10 is a front view of the reflecting mirror 107 of FIG. FIG. 11 is a cross-sectional view taken along the line XI-XI in FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG.
The reflecting mirror 107 has the first reflecting surface 51, the second reflecting surface 52, and the third reflecting surface 53, but does not have the fourth to sixth reflecting surfaces 54, 55, and 56. Thereby, the reflecting mirror 107 is reduced in size with respect to the direction X1 along the rotation axis 6. Further, the rotating lamp 106 can be downsized, and the signal display lamp 101 can be downsized.

  The third reflecting surface 53 of the reflecting mirror 107 is disposed so as to overlap the first and second power transmission members 31 and 32 as a part of the rotation drive mechanism 108 when viewed in the first irradiation direction A1. In addition, a part of the electric motor 30 is disposed so as to overlap. As a result, the space can be used more effectively. As a result, for example, the light from the rotating lamp 106 is emitted from almost the entire outer peripheral surface of the globe 105.

With respect to the direction X1 along the rotation axis 6, the outer shape of the rotating lamp 106 can be reduced (thinned) while maintaining the size of the entire reflecting surface of the rotating lamp 106 when viewed from the periphery. Therefore, for example, the signal display lamp 101 can be reduced in size while maintaining the visibility of the stacked signal display lamp 101 high. As a result, the signal indicator lamp 101 can be applied to a wider range of uses.
In addition, as a paraboloid of each above-mentioned embodiment, what is necessary is just to have comprised a part of rotation paraboloid shape, and it replaced with the rotation paraboloid shape, and the shape approximated to the rotation paraboloid shape It can also be considered.

  In each of the above-described embodiments, the second reflecting surface 52 is formed in a plane that is orthogonal to the rotation axis 6, but is formed in a plane that obliquely intersects the rotation axis 6. May be. Moreover, although the extended surface of the 2nd reflective surface 52 and the rotation axis 6 crossed mutually, the case where the inner side part of the outline of the 2nd reflective surface 52 and the rotation axis 6 cross | intersect can also be considered. The same applies to the fifth reflecting surface 55.

  In each of the above-described embodiments, the third reflecting surface 53 has a plurality of paraboloids (corresponding to the first to third partial reflecting surfaces 61, 62, and 63), but at least one of them. There should be a paraboloid of revolution. For example, the second partial reflection surface 62 and the third partial reflection surface 63 of the third reflection surface 53 are eliminated, and the first partial reflection surface 61 is extended to both sides in the circumferential direction around the rotation axis 6. May be formed. Further, the first partial reflection surface 61 of the third reflection surface 53 may be eliminated, and the second partial reflection surface 62 and the third partial reflection surface 63 may be formed to extend toward each other. The same applies to the sixth reflecting surface 56.

  Further, the rotating lamp 2 of the first embodiment may be applied to the laminated signal display lamp 101. Further, the rotating lamp 106 of the second embodiment may be applied to the rotation warning lamp 1. In addition, various changes can be made within the scope of the matters described in the claims.

It is sectional drawing of the rotation warning light to which the rotation lamp of the 1st Embodiment of this invention was applied. It is a perspective view of the reflective mirror of the rotary lamp of FIG. It is a front view of the reflecting mirror of FIG. It is sectional drawing of the IV-IV cross section of FIG. It is sectional drawing of the VV cross section of FIG. It is a top view of the reflective mirror of FIG. It is a side view of the signal indicator lamp to which the rotary lamp of the 2nd Embodiment of this invention was applied, and one part is cross-sectional displayed. It is sectional drawing of the rotary lamp of FIG. It is a perspective view of the reflecting mirror of FIG. FIG. 10 is a front view of the reflecting mirror of FIG. 9. It is sectional drawing of the XI-XI cross section of FIG. It is sectional drawing of the XII-XII cross section of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2,106 ... Rotating lamp 6 ... Rotating axis 8 ... Light emitting diode 9 ... Sub-light emitting diode 10, 107 ... Reflective mirror 11, 108 ... Rotation drive mechanism 12 ... End part (one side of reflective mirror) 23 ... Optical axis 30 ... Electricity Motor (part of rotation drive mechanism)
31 ... 1st power transmission member (a part of rotation drive mechanism)
32 ... 2nd power transmission member (a part of rotation drive mechanism)
33 ... Third power transmission member (part of rotation drive mechanism)
34 ... Fourth power transmission member (part of the rotational drive mechanism)
40: Curved plate (outer peripheral edge)
51 ... 1st reflective surface 52 ... 2nd reflective surface 53 ... 3rd reflective surface 54 ... 4th reflective surface 55 ... 5th reflective surface 56 ... 6th reflective surface 57 ... (the 1st reflective surface regarding the direction along a rotating shaft line) ) Edge 64... Edge A1... First irradiation direction A2. Second irradiation direction (direction in which the axis of symmetry of the paraboloid of the third reflection surface extends) )
A3: Third irradiation direction (direction in which the axis of symmetry of the paraboloid of the third reflecting surface extends)
A4: Fourth irradiation direction (direction in which the axis of symmetry of the paraboloid of the third reflecting surface extends)
A5: Fifth irradiation direction A6: Sixth irradiation direction (direction in which the axis of symmetry of the paraboloid of the sixth reflecting surface extends)
A7: Seventh irradiation direction (direction in which the axis of symmetry of the paraboloid of the sixth reflecting surface extends)
A8: Eighth irradiation direction (direction in which the axis of symmetry of the paraboloid of the sixth reflecting surface extends)
F1 (Focus of the first reflecting surface) F2, F3, F4 ... Focus (Focus of the paraboloid of the third reflecting surface)
F5 (Focus on the fourth reflecting surface) F6, F7, F8 ... Focus (Focus on the paraboloid of the sixth reflecting surface)
S1... Symmetry axis (of the paraboloid of the first reflecting surface) S2, S3, S4... Symmetry axis (the axis of symmetry of the paraboloid of the third reflecting surface)
S5... Symmetry axis S6, S7, S8... Symmetry axis (Symmetry axis of the rotation paraboloid of the sixth reflection surface)
P1 ... Light source position P2 ... Sub-light source position P11 ... Symmetry point P12 (of the light source position with respect to the second reflection surface) ... Symmetry point X1 (with respect to the fifth reflection surface) Symmetry point X1 ... Direction (direction along the rotation axis)
X2 ... radial direction

Claims (17)

A rotating lamp that emits light from a light emitting diode toward an irradiation direction intersecting the rotation axis by a reflecting mirror that is driven to rotate about a predetermined rotation axis by a rotation drive mechanism,
The light emitting diode is disposed at a predetermined light source position on the rotation axis ,
The reflector is
A parabolic first reflecting surface that is formed in a rotating parabolic shape with the light source position as a focus, and reflects light from the light emitting diode toward the irradiation direction;
A planar second reflecting surface that is formed in a planar shape extending in a direction orthogonal to the rotational axis, is opposed to the light emitting diode, and reflects direct light from the light emitting diode;
A rotating lamp comprising a parabolic third reflecting surface for reflecting reflected light reflected by the second reflecting surface in a direction including the irradiation direction.   The rotating lamp according to claim 1, wherein the axis of symmetry of the paraboloid of the first reflecting surface intersects the axis of rotation at a right angle. The second reflective surface, characterized in that it extends from the edge of the first reflecting surface with respect to the direction along the rotational axis, rotating lamp according to claim 1 or 2. The third reflecting surface includes a rotating paraboloid focusing on a point symmetric with respect to the light source position with respect to the second reflecting surface, and the axis of symmetry of the rotating paraboloid intersects the rotation axis. The revolving lamp according to any one of claims 1 to 3 , characterized in that: 5. The rotating lamp according to claim 4 , wherein the third reflecting surface includes a plurality of the rotating paraboloid surfaces, and directions in which a symmetry axis of the rotating paraboloid surfaces extends are different from each other. The third axis of symmetry of said paraboloid reflective surface, characterized in that intersects at right angles to the axis of rotation, rotating lamp according to claim 4 or 5. The third reflecting surface is formed at an outer peripheral edge portion at one end portion of the reflecting mirror with respect to a direction along the rotation axis, and overlaps at least a part of the rotation driving mechanism when viewed in the irradiation direction. The reflecting mirror according to any one of claims 1 to 6 , characterized in that:   The third reflection surface includes three parabolic reflection surfaces that are positioned forward with respect to a light source position disposed on the rotation axis and that are adjacent to each other in the circumferential direction around the rotation axis. The rotating lamp according to any one of claims 1 to 7.   9. The apparatus according to claim 1, wherein said light emitting diode and said reflecting mirror are arranged in two upper and lower stages symmetrically in the vertical direction about said second reflecting surface with respect to said rotational axis direction. A rotating lamp according to any one of the above. A sub-light source position is set apart from the light source position with respect to the direction along the rotation axis,
A sub light emitting diode disposed at the sub light source position is further provided,
The reflecting mirror is formed in a paraboloidal shape with the sub-light source position as a focal point, and further includes a fourth reflecting surface that reflects light from the sub-light emitting diode toward the irradiation direction. The revolving lamp according to any one of claims 1 to 8. The rotating lamp according to claim 10 , wherein the axis of symmetry of the paraboloid of the fourth reflecting surface intersects the axis of rotation at a right angle. The reflecting mirror faces the sub light emitting diode in a posture intersecting with the rotation axis, reflects a direct light from the sub light emitting diode, and reflects light from the fifth reflecting surface in the irradiation direction. The revolving lamp according to claim 10 or 11 , further comprising a sixth reflecting surface that reflects toward a direction including. The rotating lamp according to claim 12 , wherein the fifth reflecting surface is formed in a plane that intersects the rotation axis at a right angle. The rotating lamp according to claim 12 or 13 , wherein the fifth reflecting surface is extended from an edge of the fourth reflecting surface with respect to a direction along the rotation axis. The sixth reflecting surface includes a rotating paraboloid focusing on a point symmetrical to the sub-light source position with respect to the fifth reflecting surface, and the axis of symmetry of the rotating paraboloid intersects the rotation axis. The rotating lamp according to any one of claims 12 to 14 , characterized in that: The rotating lamp according to claim 15 , wherein the sixth reflecting surface includes a plurality of the rotating paraboloid surfaces, and directions in which a symmetry axis of the rotating paraboloid surfaces extends are different from each other. With respect to the direction along the rotation axis, the third reflecting surface is disposed outward from the light source position, the sixth reflecting surface is disposed outward from the sub-light source position, and the first, second, The rotating lamp according to any one of claims 12 to 16 , wherein the fourth and fifth reflecting surfaces are disposed between the light source position and the sub-light source position.

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