JP7405691B2 - lighting equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to lighting equipment.

Patent Document 1 discloses a lighting device in which a lamp serving as a light source can be housed in a bottomed cylindrical lamp body. In this lighting device, a mounting plate parallel to the bottom of the light body is attached to a midway position inside the light body, and a socket for mounting a lamp is attached to the center of the mounting plate on the opening side. Further, the bottom side of the lamp body has an arm portion that rotatably supports the lamp body.

Japanese Patent Application Publication No. 2008-4529

According to this configuration, the mounting plate is provided at a position sufficiently distant from the bottom of the lamp body so as not to interfere with the rotating arm. Therefore, there was a problem that the lamp body became larger.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture whose main body, which includes a socket for attaching a light source, can be downsized.

The lighting fixture of the present invention includes:
A bottomed cylindrical instrument body,
A socket for attaching a light source,
a socket base that is attached to the inside of the instrument main body with the socket attached to one side;
The socket base is
a bottom portion that covers the bottom surface of the socket and protrudes toward the other surface of the socket base;
a side portion covering a side surface of the socket;
an opening provided in the bottom;
An electric wire pulled out from the socket is guided to the other side of the socket base through the opening ,
A thermostat is attached to the socket base and controls turning on and off of the light source according to the ambient temperature .

In the above lighting equipment,
The socket base may include a plurality of ribs provided along an outer surface of the side portion.

In the above lighting equipment,
The instrument main body has a positioning part facing the other side of the socket base,
The socket base is
a first contact part that can come into contact with the positioning part;
a second contact portion that protrudes toward the other surface side than the first contact portion and is capable of contacting the positioning portion;
The position of the socket base relative to the instrument body in the direction from the one side to the other side is a first position where the first abutting part abuts the positioning part, or a position where the second abutting part abuts the positioning part. Alternatively, it may be positioned at a second position abutting the second position.

According to the lighting fixture of the present invention, the fixture body including the socket for attaching the light source can be downsized.

It is a front view of the lighting fixture of one embodiment. FIG. 2 is a partial cross-sectional view taken along the line AA in FIG. 1; 2 is a partial sectional view taken along line BB in FIG. 1. FIG. FIG. 2 is an exploded perspective view of the lighting fixture in FIG. 1 as seen from the right side. FIG. 2 is an exploded perspective view of the lighting fixture of FIG. 1 as seen from the left side. FIG. 3 is a front view of the instrument body. 7 is a sectional view taken along line CC in FIG. 6. FIG. It is a perspective view of a socket base. It is a right side view of the arm part in a 1st state. It is a right side view of the arm part in a 2nd state. It is a partial sectional view of the instrument main body equipped with a small-sized light source.

In this embodiment, a lighting fixture 10, which is an embodiment of the present invention, will be described as an example. The lighting fixture 10 is a lighting fixture installed on a mounting surface such as a ceiling or a wall surface, and is a so-called spotlight. In the following description, each direction is defined based on the lighting fixture 10 in the state of FIG. 1, and the direction of each component is also based on the state assembled in the lighting fixture 10 in the state of FIG. 1.

Specifically, the left and right sides in FIG. 1 are the left and right sides of the lighting fixture 10, the upper and lower sides in FIG. 1 are the upper and lower sides of the lighting fixture 10, and the front side of the paper in FIG. The back side of the paper in FIG. 1 is defined as the rear side (back side) of the lighting fixture 10. The front side of the socket base 50 is an example of one side of the socket base 50, and the back side of the socket base 50 is an example of the other side of the socket base 50.

As shown in FIGS. 1 to 5, the lighting fixture 10 includes a fixture body 20, a light source 30, a socket 40, a socket base 50, a thermostat 70, an arm part 80, and a base part 100.

As shown in FIGS. 1 and 2, the device main body 20 is a member that accommodates and holds the light source 30, the socket 40, the socket base 50, and the thermostat 70 therein. As shown in FIGS. 6 and 7, the instrument main body 20 is a cylindrical member with a bottom. The instrument main body 20 includes a cylindrical portion 21, a bottom portion 22, a first opening 23, a second opening 24, a protrusion 25 as an example of a positioning portion in the circumferential direction, and an example of a positioning portion in the front-rear direction. It has a first protrusion 26, a first screw hole 27, a second protrusion 28, and a second screw hole 29. In this embodiment, the instrument body 20 is integrally molded. Note that the instrument main body 20 may be constructed by assembling a plurality of members.

The device main body 20 of this embodiment can be made of a metal material such as aluminum or aluminum alloy that is durable enough to hold the light source 30, the socket 40, the socket base 50, the thermostat 70, and the like. When the fixture main body 20 is made of a metal material such as aluminum or an aluminum alloy, the heat dissipation of the lighting fixture 11 can be improved because of its high thermal conductivity. The material constituting the instrument body 20 is not limited to metal materials such as aluminum, but may also be other metal materials such as iron or iron alloys, resin materials, or a combination thereof.

The tube portion 21 is a cylindrical member having a diameter and length (depth) that can accommodate the light source 30, the socket 40, the socket base 50, the thermostat 70, and a portion of the arm portion 80. The inner surface of the cylindrical portion 21 has a tapered shape that widens toward the front. The shape of the cylindrical portion 21 may be any cylindrical shape, and may be, for example, a rectangular cylindrical shape.

The bottom portion 22 is a substantially disk-shaped member that covers the rear end portion of the cylindrical portion 21 and extends in the vertical and horizontal directions. The first opening 23 is a circular portion formed at the front end of the cylindrical portion 21 . The light emitted from the light source 30 is emitted to the front side of the instrument main body 20 through the first opening 23. Further, the light source 30 is attached and detached through the first opening 23.

The second opening 24 is a notch formed from the rear upper part of the cylindrical part 21 to the upper part of the bottom part 22. As shown in FIG. 2, the second opening 24 is an opening for exposing the arm portion 80 from the instrument body 20, and is formed in a size that prevents interference between the rotating instrument body 20 and the arm portion 80. .

As shown in FIGS. 6 and 7, the protruding portion 25 is a member that positions the socket base 50 in the circumferential direction. The protruding portion 25 is disposed at the rear lower portion of the inner surface of the cylindrical portion 21 so as to extend in the front-rear direction.

The first protrusion 26 is a member that is provided facing the back side of the socket base 50 and positions the socket base 50 in the front-rear direction. The first protruding portion 26 is a member that protrudes forward from a region below the center of the front surface of the bottom portion 22 . In this embodiment, two first protrusions 26 are provided symmetrically, but there is no particular limitation on the number, and one or more may be provided. The front end surface 26A of the first protrusion 26 serves as a contact surface that comes into contact with the socket base 50 and positions the socket base 50 in the front-rear direction.

The first screw hole 27 is a screw hole formed in the front end surface 26A of the first protrusion 26. The first screw hole 27 is used for screwing the socket base 50 to the instrument body 20.

The second protruding portion 28 is a member that supports the arm portion 80 at the attachment position. The second protruding portion 28 is a member that protrudes forward from a region above the center of the front surface of the bottom portion 22 . In this embodiment, two second protrusions 28 are provided symmetrically, but there is no particular limitation on the number, as long as one or more second protrusions 28 are provided. The front end surface 28A of the second protrusion 28 serves as a support surface that supports the arm portion 80.

The second screw hole 29 is a screw hole formed in the front end surface 28A of the second protrusion 28. The second screw hole 29 is used for screwing the arm portion 80 to the instrument body 20.

As shown in FIGS. 1 to 5, the light source 30 is a light bulb or the like having a base that can be attached to a socket 40. In this embodiment, an LED (Light Emitting Diode) bulb is used as the light source 30. Note that the type of light source 30 is not particularly limited, and for example, a light emitting module mounted with a surface-mounted type or chip-on-board type LED element, an organic EL element, etc. may be used.

By the way, the LED bulbs used as the light source 30 include LED bulbs of different sizes, such as the large size (for example, 100W type) shown in FIGS. 1 to 5 and the small size (for example, 60W type) shown in FIG. exist. Although details will be described later, the lighting fixture 10 of this embodiment can be equipped with light bulb-shaped light sources 30 of two different sizes. As shown in FIG. 10, when attaching a small-sized light source 30, the socket base 50 is attached upside down with respect to the instrument main body 20. Thereby, the position of the front end of the small-sized light source 30 within the instrument main body 20 can be arranged at approximately the same position as the position of the front end of the large-sized light source 30.

As shown in FIGS. 2 to 5, the socket 40 is a cylindrical member with a bottom to which the light source 30 is attached. An electric wire 41 for connecting to an external power source is drawn out from the bottom of the socket 40. The light source 30 is screwed into the socket 40 and fixed at a position where the front end does not protrude from the opening 23 of the instrument body 20.

As shown in FIGS. 2 to 5 and 8, the socket base 50 is a member that supports the socket 40 and functions as a heat sink. The socket base 50 is attached inside the instrument main body 20 with the socket 40 attached to the front side. The socket base 50 includes a side portion 51, a rib 52, a flange portion 53, a bottom portion 54, an opening for electric wires 55, an arm notch 56, a first positioning notch 57, and a second positioning notch 57. It has a notch 58, a first abutting part 59, a first mounting hole 60, a second abutting part 61, a second mounting hole 62, a thermostat mounting part 63, and a thermostat notch 64. .

In this embodiment, the socket base 50 is integrally molded. Note that the socket base 50 may be constructed by assembling a plurality of members. The material constituting the socket base 50 is preferably a material with high thermal conductivity, and for example, metal materials such as aluminum, aluminum alloy, iron, and iron alloy can be used.

Heat generated from the light source 30 is transferred to the air around the light source 30 and the socket 40. The heat transferred to the socket 40 is transferred to the socket base 50 and the instrument body 20. When the temperature of the surrounding area is lower than that of the device main body 20, the heat generated from the light source 30 is transmitted to the air around the device main body 20 and the socket base 50, and is radiated.

The side portion 51 is a cylindrical member that covers the outer surface of the socket 40. The side portion 51 functions as a heat sink, increasing the heat dissipation of heat generated from the light source 30 and transmitted to the socket 40. Although the side portion 51 of this embodiment covers the entire circumference of the socket 40, the side portion of the socket base 50 only needs to cover at least a portion of the socket 40.

The ribs 52 are plate-shaped members provided on the outer surface of the side portion 51 and extending in the front-rear direction, and a plurality of ribs 52 are provided at intervals along the circumferential direction of the outer surface of the side portion 51. The ribs 52 function as a heat sink, increasing the heat dissipation of heat generated from the light source 30 and transmitted to the side portions 51.

The flange portion 53 is a substantially annular member extending in the vertical and horizontal directions from the outer surface near the rear end of the side portion 51 . The outer diameter of the flange portion 53 is formed to a size that fits into the cylindrical portion 21 of the instrument main body 20.

The bottom portion 54 is a member that covers the bottom surface of the socket 40 and protrudes from the flange portion 53 toward the back side. The bottom portion 54 is a substantially disk-shaped member that covers the rear end portion of the side portion 51 and extends in the vertical and horizontal directions. The bottom portion 54 functions as a heat sink, increasing the heat dissipation of the heat generated from the light source 30 and transferred to the socket 40. Furthermore, since the bottom portion 54 protrudes further toward the rear side than the flange portion 53, the socket 40 is placed closer to the rear end of the instrument main body 20, and the length of the instrument main body 20 in the front-rear direction can be shortened. . That is, the instrument main body 20 can be downsized.

The wire opening 55 is a substantially elliptical opening provided in the bottom portion 54 . As shown in FIG. 2, the electric wire 41 pulled out from the socket 40 is guided to the back side of the socket base 50 via the electric wire opening 55.

As shown in FIGS. 2 and 8, the arm notch 56 is a notch formed from the upper part of the bottom part 54 to the rear upper part of the side part 51. As shown in FIGS. The arm notch 56 is formed in a size that prevents the socket base 50 from interfering with the arm 80 when the instrument main body 20 rotates approximately 90 degrees as shown by the two-dot chain line in FIG. By providing the arm notch 56, the length of the instrument body 20 in the front-rear direction can be shortened by arranging the socket base 50 close to the rear end of the instrument body 20. That is, the instrument main body 20 can be downsized.

The first positioning notch 57 is a notch formed at the lower end of the flange portion 53. As shown in FIGS. 1 and 2, the first positioning notch 57 is inserted into the protrusion 25. As shown in FIGS. Thereby, the socket base 50 is positioned in the circumferential direction.

As shown in FIGS. 8 and 10, the second positioning notch 58 is a notch formed at the upper end of the flange portion 53. As shown in FIGS. As shown in FIG. 10, the second positioning notch 58 is inserted into the protrusion 25 when a small-sized light source 30 is used. Thereby, the socket base 50 is positioned in the circumferential direction.

Note that the positioning of the socket base 50 in the circumferential direction with respect to the instrument body 20 is achieved by providing a convex portion on the outer periphery of the socket base 50 in place of the protrusion 25, the first positioning notch 57, and the second positioning notch 58. A groove may be provided on the inner surface of the cylindrical portion 21, and the convex portion may be inserted into the groove.

As shown in FIGS. 2 and 8, the first contact portion 59 is a member that comes into contact with the first protrusion 26, which is a positioning portion in the front-rear direction when a large-sized light source 30 is used. In the present embodiment, the first abutting portions 59 are formed of a portion around the first mounting hole 60 on the back surface of the flange portion 53, and are provided in pairs on the left and right sides. Note that the first contact portion 59 may be in the form of protruding or recessing from the back surface of the flange portion 53. When the first contact portion 59 comes into contact with the front end surface 26A of the first protrusion 26, the socket base 50 is positioned at the first position in the front-rear direction (the position shown in FIG. 2) with respect to the instrument main body 20.

The first attachment hole 60 is a hole that is formed in the flange portion 53 at a position surrounded by the first contact portion 59 and penetrates in the front-rear direction. When the socket base 50 is in the first position, the first mounting hole 60 overlaps the first screw hole 27. The socket base 50 is fixed to the instrument body 20 by being screwed into the first screw hole 27 using the first mounting hole 60 .

As shown in FIGS. 8 and 10, the second contact portion 61 is a member that comes into contact with the first protrusion 26 when the small-sized light source 30 is used. The second abutting portion 61 is a protruding portion that protrudes further toward the back side than the first abutting portion 59 . By abutting the rear end surface of the second contact portion 61 with the front end surface 26A of the first protrusion 26, the socket base 50 is positioned at the second position in the front-rear direction (the position shown in FIG. 10) with respect to the instrument main body 20. be done.

The second attachment hole 62 is a hole formed in the rear end surface of the second contact portion 61 and penetrates in the front-rear direction. When the socket base 50 is in the second position, the second mounting hole 62 overlaps the first screw hole 27. The socket base 50 is fixed to the instrument body 20 by being screwed into the first screw hole 27 using the second attachment hole 62.

In this way, the socket base 50 in the second position is located further forward than in the first position. Therefore, the position of the front end of the small-sized light source 30 within the instrument body 20 can be placed at approximately the same position as the front end of the large-sized light source 30. Furthermore, when the socket base 50 is in the second position, a sufficient space is formed between the rear end of the socket base 50 and the arm section 80, so that when the instrument main body 20 rotates approximately 90 degrees, The socket base 50 does not interfere with the arm portion 80. Further, the electric wire 41 drawn out from the socket 40 is guided to the back side of the socket base 50 through an electric wire opening 55 provided near the center of the bottom portion 54 of the socket base 50. Therefore, even if the socket base 40 is changed from the first position to the second position, the position from which the electric wire 41 is drawn out is unlikely to be changed. Therefore, the positional relationship with the arm portion 80 supported within the instrument body 20 in the vertical direction of the instrument body 20 is not greatly affected.

Note that the socket base 50 may be positioned in the front-back direction with respect to the instrument body 20 by using a flat surface that is the bottom portion 22 of the instrument body 20 instead of the first protrusion 26. In this case, the first abutting portion 59 may be a protruding portion that protrudes rearward, and the second abutting portion 61 may be made to further protrude.

In this way, by changing the fixed portion of the socket base 50 in the fixture body 20, it is possible to provide a lighting fixture 10 that is compatible with two different sizes of light sources 30. In addition, in this embodiment, the socket base 50 is configured to accommodate two types of sizes, but the present invention is not limited to this. The socket base 50 can further include a third abutting part or the like at a different position in the front-rear direction from the first abutting part 59 and the second abutting part 61, increasing the number of attachable positions to the instrument body 20. You can also do it. Thereby, the device main body 20 and the socket base 50 can be made common, and the device can be configured to accommodate light sources 30 of a plurality of sizes.

As shown in FIGS. 3 and 8, the thermostat mounting portion 63 is a protrusion provided on the outer surface of the side portion 51, and the front end surface thereof has a screw for screwing a holder 71 that holds the thermostat 70. Has a hole. The thermostat notch 64 is a notch formed in the flange portion 53 near the thermostat mounting portion 63. The thermostat notch 64 is a notch that guides the electric wire of the thermostat 70 to the back side of the socket base 50.

According to such a socket base 50, it is possible to support the socket 40, efficiently radiate heat generated from the light source 30, and downsize the instrument body 20. Further, by using the main body 20 and the socket base 50 in common, it is possible to realize a configuration that can accommodate light sources 30 of a plurality of sizes.

As shown in FIG. 3, the thermostat 70 is a member that controls turning on and off of the light source 30 according to the ambient temperature. The thermostat 70 is held by a holder 71 fixed to the socket base 50 and is placed near the light source 30. By providing the thermostat 70, the light source 30 can be turned off before the fixture main body 20 reaches a high temperature, so the safety of the lighting fixture 10 can be improved.

As shown in FIGS. 2 to 5, 9A, and 9B, the arm portion 80 is a member that connects the base portion 100 and the instrument main body 20 and allows the instrument main body 20 to rotate within a vertical plane and a horizontal plane. It is. The arm portion 80 includes an arm 81 and a fixture 82 . Here, the state of the arm portion 80 when the instrument body 20 is in the position shown by the solid line in FIG. The state of the arm portion 80 at a certain time is defined as a second state (the state shown in FIG. 9B).

The arm 81 is a member that is inserted through the second opening 24 of the instrument main body 20 and connects the base portion 100 and the fixture 82. The arm 81 is a cylindrical rod-like member that extends in the vertical direction, and has an upper cylindrical portion 83 and a lower cylindrical portion 84 . The upper cylindrical portion 83 is a substantially square cylindrical member having a cylindrical inner surface 83A. The electric wire 41 is inserted into the space surrounded by the inner surface 83A. The upper cylinder part 83 is inserted into the hole 101 of the base part 100 and is rotatably fixed to the base part 100 with a nut or the like. As a result, the arm 81 can rotate approximately 360 degrees in a horizontal plane relative to the base portion 100.

The lower cylindrical portion 84 is a substantially square cylindrical member that extends downward from the lower end of the upper cylindrical portion 83 and has a cylindrical inner surface 84A. The electric wire 41 is inserted into the space surrounded by the inner surface 84A. The lower cylinder portion 84 has a groove portion 85 , a hole portion 86 , a first restriction portion 87 , and a second restriction portion 88 . The groove portion 85, the first restriction portion 87, and the second restriction portion 88 are provided symmetrically on the left and right side surfaces of the lower cylinder portion 84.

The groove portion 85 is a stepped portion recessed around the lower end portions of the left and right side surfaces of the lower cylinder portion 84 . The hole 86 is a through hole through which a bolt that rotatably supports the fixture 82 is inserted. The hole 86 extends in the left-right direction and is formed at a position connecting the left and right grooves 85.

The first regulating portion 87 is a member that regulates the fixture 82 when holding the arm portion 80 in the first state. The second restricting portion 88 is a member that restricts the fixture 82 when holding the arm portion 80 in the second state. The first restricting portion 87 and the second restricting portion 88 are surfaces formed along the radial direction of the hole portion 86 using the step of the groove portion 85, and the first restricting portion 87 and the second restricting portion 88 are substantially different from each other. They are arranged at an angle of 90°.

The fixture 82 is a member that connects the arm 81 and the instrument body 20. The fixture 82 is a sheet metal member, and has a right front plate part 90, a left front plate part 91, a right plate part 92, a left plate part 93, and a rear plate part 94. The right front plate part 90 and the left front plate part 91, and the right plate part 92 and the left plate part 93 are each configured symmetrically. Here, the description will be made based on the direction when the arm portion 80 is in the first state shown in FIG. 9A.

The right front plate part 90 and the left front plate part 91 are substantially rectangular plates disposed on the right and left sides of the arm 81, extending in the vertical and horizontal directions, and have holes 95 penetrating in the front and rear directions. The hole 95 is screwed over the second screw hole 29 of the instrument body 20.

The right plate portion 92 is a plate material that extends rearward from the left end of the right front plate portion 90 and overlaps the groove portion 85 on the right side of the arm 81. The left plate portion 93 is a plate material that extends rearward from the right end of the left front plate portion 91 and overlaps the groove portion 85 on the left side of the arm 81. The rear plate portion 94 is a plate material that connects the left end portion of the right plate portion 92 and the right end portion of the left plate portion 93. The right plate part 92 and the left plate part 93 have a hole 96 , a first regulated part 97 , and a second regulated part 98 .

The hole 96 is a hole penetrating in the left-right direction, and is formed at a position overlapping with the hole 86 of the arm 81. The hole 96 overlaps the hole 86 of the arm 81 and is fixed with bolts and nuts. This allows the fixture 82 to rotate relative to the arm 81 within a vertical plane.

The first regulated portion 97 is a member that is regulated by the first regulating portion 87 of the arm 81 when the arm portion 80 is held in the first state. The second regulated portion 98 is a member that is regulated by the second regulating portion 88 of the arm 81 when the arm portion 80 is held in the second state. The first regulated portion 97 and the second regulated portion 98 are protruding pieces formed along the radial direction of the hole 96, and the first regulated portion 97 and the second regulated portion 98 are approximately 180 degrees apart. They are arranged so as to form an angle of . As a result, the fixture 82 has two states in which the first regulated part 97 abuts the first regulating part 87 and the second regulated part 98 abuts the second regulating part 88 by about 90 degrees in the vertical plane. °Can be rotated. The approximately 90° rotation of the arm portion 80 is restricted by the arm 81 and the fixture 82. Therefore, the arm 81 does not come into contact with the instrument main body 20, making it difficult to apply a load to the arm portion 80.

According to the arm section 80, the main body 20 of the appliance can be rotated approximately 360 degrees in the horizontal plane and approximately 90 degrees in the vertical plane, and the light emitted from the light source 30 can be irradiated in almost all desired directions in the room. can do.

As shown in FIGS. 2 to 5, the base portion 100 is a member that fixes the lighting fixture 10 to a mounting surface and connects the electric wire 41 to an external power source. The base portion 100 has a hole 101 on the lower surface through which the arm 81 is inserted and rotatably supported.

As described above, the lighting fixture 10 according to the present embodiment includes a bottomed cylindrical fixture body 20, a socket 40 to which the light source 30 is attached, and a socket 40 attached to one side of the fixture body 20. It has a socket base 50. The socket base 50 has a bottom portion 54 that covers the bottom surface of the socket 40 and protrudes to the other surface side of the socket base 50, a side portion 51 that covers the side surface of the socket 40, and an opening 55 for a wire provided in the bottom portion 54. . The electric wire 41 pulled out from the socket 40 is guided to the other surface side of the socket base 50 via the electric wire opening 55. According to this configuration, since the bottom portion 54 protrudes further to the rear side than the flange portion 53, the socket 40 is disposed closer to the rear end of the instrument main body 20, and the length of the instrument main body 20 in the front and back direction can be shortened. I can do it. That is, the instrument main body 20 can be downsized.

According to the lighting fixture 10 according to the present embodiment, the socket base 50 has a plurality of ribs 52 provided along the outer surface of the side portion 51. Thereby, the rib 52 functions as a heat sink, and the heat dissipation performance of the heat generated from the light source 30 and transmitted to the side portion 51 is improved.

According to the lighting fixture 10 according to the present embodiment, the fixture main body 20 has the first protrusion 26 facing the other side of the socket base 50. The socket base 50 includes a first contact part 59 that can come into contact with the first protrusion 26 and a second contact part 59 that protrudes from the first contact part 59 to the other side and can come into contact with the first protrusion 26. It has a contact portion 61. The position of the socket base 50 with respect to the instrument body 20 in the direction from one side to the other side is a first position where the first abutting part 59 abuts the first protrusion 26 or a position where the second abutting part 61 abuts the first protrusion. is alternatively positioned in a second position abutting portion 26. Thereby, the device main body 20 and the socket base 50 can be made common, and the device can be configured to accommodate light sources 30 of a plurality of sizes.

The lighting fixture 10 according to the present embodiment includes a thermostat 70 that is attached to the socket base 50 and controls turning on and off of the light source 30 according to the ambient temperature. Thereby, the light source 30 can be turned off before the fixture main body 20 becomes high temperature, so the safety of the lighting fixture 10 can be improved.

10 lighting fixture 20 fixture body 26 first protrusion part (positioning part)
30 light source 40 socket 41 electric wire 50 socket base 51 side 52 rib 54 bottom 55 opening for electric wire (opening)
59 First contact part 61 Second contact part 70 Thermostat

Claims (3)

A bottomed cylindrical instrument body,
A socket for attaching a light source,
a socket base that is attached to the inside of the instrument main body with the socket attached to one side;
The socket base is
a bottom portion that covers the bottom surface of the socket and protrudes toward the other surface of the socket base;
a side portion covering a side surface of the socket;
an opening provided in the bottom;
An electric wire pulled out from the socket is guided to the other side of the socket base through the opening ,
A lighting equipment including a thermostat that is attached to the socket base and controls turning on and off of the light source according to ambient temperature . The lighting fixture according to claim 1, wherein the socket base has a plurality of ribs provided along an outer surface of the side part. The instrument main body has a positioning part facing the other side of the socket base,
The socket base is
a first contact part that can come into contact with the positioning part;
a second contact portion that protrudes toward the other surface side than the first contact portion and is capable of contacting the positioning portion;
The position of the socket base relative to the instrument body in the direction from the one side to the other side is a first position where the first abutting part abuts the positioning part, or a position where the second abutting part abuts the positioning part. 3. A luminaire according to claim 1 or claim 2, wherein the luminaire is alternatively positioned in a second position abutting the luminaire.

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