JP5725991B2 - Lamp socket and lighting fixture - Google Patents

Description

  The present invention relates to a lamp socket and a lighting fixture.

  Recently, straight tube LED lamps are being sold as an alternative to straight tube fluorescent lamps. However, unlike a straight tube fluorescent lamp that emits light around the entire circumference of the tube, the irradiation surface of the straight tube LED lamp has a relatively strong directivity, and there is a disadvantage that only a limited range can be irradiated after being mounted on a lighting fixture.

  Conventionally, there is an internal structure of a straight tube LED lamp in which an irradiation surface can be moved by connecting a tube and a base portion with an electric wire and rotating the tube after being mounted on a lighting fixture (for example, see Patent Document 1).

  Conventionally, as a lamp socket to which a straight tube fluorescent lamp is mounted, there is a lamp socket having a lamp pin insertion portion that leads from the upper surface side of the socket body to a lamp holding position (see, for example, Patent Document 2). When the lamp pin of the straight tube fluorescent lamp is inserted into the lamp pin insertion portion of the lamp socket and then the straight tube fluorescent lamp is rotated, the lamp pin and the conductive metal fitting inside the socket are connected, and the straight tube fluorescent lamp emits light.

International Publication No. 2009/154162 JP 2006-185787 A

  In patent document 1, since it has a rotation mechanism between the nozzle | cap | die part and pipe | tube of a straight tube | pipe LED lamp, creation of a dedicated straight tube | pipe LED lamp is essential. Moreover, as a lamp socket to which a straight tube LED lamp is mounted, only a lamp socket having a structure in which the lamp is mounted by being pushed in the axial direction of the lamp can be used, so there are many restrictions and inconvenience is caused to the user. Moreover, since the electric wire which connects a nozzle | cap | die part and a pipe | tube twists when a straight tube | pipe LED lamp is rotated, there exists a subject in terms of quality or safety.

  In Patent Document 2, the straight tube lamp is rotated from the top surface of the socket to the lamp holding position, and when the user attaches the straight tube lamp at a halfway position, the straight tube lamp falls due to the influence of vibration or the like. There is a fear.

  An object of the present invention is to provide a lamp socket in which, for example, a mounted straight tube lamp is rotated to adjust a circumferential direction stepwise.

A lamp socket according to one aspect of the present invention is:
A rotor provided with a pair of through holes penetrating in the axial direction;
A socket body provided with an opening into which a straight tube lamp in which a pair of power supply pins protrude from a base is inserted, and a guide portion to which the rotor is attached and guides the rotation of the rotor;
When the base of the straight tube lamp is inserted into the opening with the pair of through holes being in a predetermined position in the circumferential direction of the rotor, the pair of power supply pins are inserted into the pair of penetrations. Inserted into the hole,
When the straight tube lamp is rotated in a state where the pair of power feeding pins are inserted into the pair of through holes, the inner peripheral surfaces of the pair of through holes are pressed by the pair of power feeding pins. The rotor rotates,
Of the surfaces of the rotor and the guide portion that face each other, a pair of convex portions are provided on one surface, and the pair of through holes are located on a position other than the predetermined position on the other surface. In a state, each pair is provided with a plurality of pairs of recesses that can be fitted with the pair of protrusions,
When the rotor rotates and the pair of convex portions comes to a position facing any one of the pair of concave portions, the pair of convex portions and the pair of concave portions are fitted. By combining, the rotor is positioned in the circumferential direction.

  According to one aspect of the present invention, the straight tube lamp mounted on the lamp socket can be rotated to adjust the circumferential direction stepwise.

FIG. 3 is a perspective view of the lighting apparatus according to Embodiment 1. FIG. 3 is a partially enlarged perspective view of the straight tube LED lamp according to the first embodiment. FIG. 3 is a partially enlarged perspective view of the straight tube LED lamp according to the first embodiment. FIG. 3 is an exploded perspective view of the power supply side socket according to the first embodiment. The rear view except the socket cover of the electric power feeding side socket which concerns on Embodiment 1. FIG. The front view which shows the state of the electric power feeding side socket at the time of the straight tube | pipe type LED lamp which concerns on Embodiment 1 rotates in the lamp | ramp circumferential direction. FIG. 3 is a partial cross-sectional view illustrating a connection state between the power supply pin and the conductive metal fitting according to the first embodiment. FIG. 6 is an exploded perspective view of a power supply side socket according to the second embodiment. The rear view except the socket cover of the electric power feeding side socket which concerns on Embodiment 2. FIG. FIG. 9 is a partial cross-sectional view illustrating a connection state between a power feeding pin and a conductive metal fitting according to a second embodiment.

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

Embodiment 1 FIG.
FIG. 1 is a perspective view of a lighting fixture 10 according to the present embodiment.

  The lighting fixture 10 includes a fixture main body 11, a grounding side socket 12, and a power feeding side socket 30, and is used with one straight tube LED lamp 20 mounted on the grounding side socket 12 and the power feeding side socket 30. Moreover, although not shown in figure, the lighting fixture 10 is provided with the lighting device which lights the straight tube | pipe type LED lamp 20. As shown in FIG. The lighting device is accommodated in the instrument body 11. The lighting fixture 10 is installed on a ceiling, for example. The ground side socket 12 is attached to one end side of the instrument body 11 in the longitudinal direction. The power supply side socket 30 is attached to the other end side of the instrument body 11 in the longitudinal direction.

  The lighting fixture 10 may be used with two or more straight tube LED lamps 20 attached thereto. Moreover, the lighting fixture 10 may be provided with a reflecting plate for controlling the light distribution of the straight tube LED lamp 20. The reflector is attached to the instrument body 11, for example.

  FIG. 2 is a partially enlarged perspective view of the straight tube LED lamp 20 in which one end portion of the straight tube LED lamp 20 is enlarged. FIG. 3 is a partially enlarged perspective view of the straight tube LED lamp 20 in which the other end portion of the straight tube LED lamp 20 is enlarged.

  The straight tube LED lamp 20 has a straight tube shape, but is different from a straight tube LED lamp using a base G13 of a conventional straight tube fluorescent lamp, in which two types of caps are provided in one lamp.

  One base is a ground-side base 21, and a ground pin 23 is provided at the center of the lamp receiving portion 22 on the end face. The ground pin 23 has a T-shape and is composed of a cylindrical portion 23a and an elliptical portion 23b. The short diameter of the elliptical part 23b is larger than the diameter of the cylindrical part 23a. The ground pin 23 is connected to a metal part such as a heat radiating fin of the straight tube type LED lamp 20. The ground side base 21 is detachably attached to the ground side socket 12 of the lighting fixture 10.

  The other base is a power supply side base 24 and is provided with a lamp hooking portion 25 having a convex shape on the end face. The lamp hooking portion 25 is provided with a pair of power supply pins 26 extending in the lamp axis direction. The power supply pin 26 has an outward L-shape and includes a shaft portion 26a extending in the lamp axis direction and a retaining portion 26b extending from the tip of the shaft portion 26a to the outside in the parallel direction of the lamp hooking portion 25. ing. The power supply side cap 24 is detachably attached to the power supply side socket 30 of the lighting fixture 10. When the power supply side cap 24 is attached to the power supply side socket 30, power is supplied from the power supply side socket 30 to the LED mounted on the substrate or the like inside the straight tube LED lamp 20 via the power supply side base 24. Can be lit.

  Thus, in the present embodiment, the straight tube LED lamp 20 has a base that is different from one to the other, and one of the caps is intended for feeding the straight tube LED lamp 20 (the ground side base 21). The other base is intended to connect the metal part of the straight tube LED lamp 20 and the lighting fixture 10 (power supply side base 24). As such a straight tube type LED lamp 20, for example, a “straight tube type LED lamp system with an L-shaped pin cap GX16t-5” of the Japan Light Bulb Industry Association standard which may become a mainstream in the future can be used. As the straight tube LED lamp 20, other conventional straight tube LED lamps may be used. In addition, as long as the pair of power supply pins protrude from the base, a straight tube lamp that emits light by a light emitter (for example, organic EL) other than the LED may be used instead of the straight tube LED lamp 20. .

  FIG. 4 is an exploded perspective view of the power supply side socket 30. FIG. 5 is a rear view of the power supply side socket 30 with the socket cover 60 removed.

  The power supply side socket 30 includes a socket body 31, a rotor 40, a pair of conductive fittings 50, and a socket cover 60. The socket body 31 is provided with an opening 32. The rotor 40 is disposed so as to fit into the opening 32 of the socket body 31 and is rotatably accommodated. The rotor 40 is provided with a pair of pin insertion holes 43 into which the power supply pins 26 of the straight tube LED lamp 20 can be inserted. The conductive metal fitting 50 is disposed outside the rotor 40 and is connected to the power supply pin 26 when the power supply pin 26 is rotated in the circumferential direction of the straight tube LED lamp 20. The socket cover 60 holds the rotor 40 and covers the socket body 31.

  The socket body 31 is provided with a substantially circular opening 32 centered on a desired lamp holding position. A guide rib 33 having a diameter larger than that of the opening 32 is provided inside the socket body 31. The guide rib 33 is formed with fixing grooves 34 at least at four or more locations. The fixing groove 34 is provided at each location facing the center of the opening 32. Specifically, as shown in FIG. 5, a total of twelve fixing grooves 34 are provided at 30 degrees centering on the lamp holding position. A pair of attachment portions 35 are provided on the inner wall of the socket body 31.

  The rotor 40 includes a cylindrical portion 41 extending in the lamp insertion direction and a receiving portion 42 that is substantially disk-shaped and larger than the opening 32 of the socket body 31 and on which the cylindrical portion 41 stands. The receiving portion 42 is provided with a pin insertion hole 43 which is a hole larger than the tip end surface of the retaining portion 26 b of the power supply pin 26. Further, the receiving portion 42 is positioned from the outer peripheral portion of the receiving portion 42 so that the position of the receiving portion 42 in the circumferential direction is substantially the same as the pin insertion hole 43 and the position of the receiving portion 42 in the radial direction is outside the pin insertion hole 43. A pair of convex portions 44 projecting radially outward is provided. The distance D1 between the convex portions 44 (particularly, the tip portion thereof) is the distance D2 between the opposing portions of the guide rib 33 of the socket body 31 (limited to the portion without the fixing groove 34) (that is, the inner diameter of the guide rib 33). Longer. The rotor 40 has a position approximately 90 degrees from the pin insertion hole 43 in the circumferential direction of the receiving portion 42 (when the position of the pin insertion hole 43 is 0 degrees and 180 degrees, positions at or near 90 degrees and 270 degrees). Thus, a notch 45 is continuously cut from the outer peripheral side of the receiving part 42 to the middle of the cylindrical part 41 so as to bisect the receiving part 42. The width D3 of the notch 45 is slightly larger than the length obtained by subtracting the distance D2 between the facing portions of the guide rib 33 from the distance D1 between the convex portions 44. Therefore, as will be described later, when the rotor 40 rotates as the straight tube LED lamp 20 rotates in the lamp circumferential direction, the convex portion 44 is pressed by the guide rib 33 and the rotor 40 is generated. Elastic deformation can be absorbed by the notch 45.

  As shown in FIG. 5, the conductive metal fitting 50 extends in the direction in which the cylindrical portion 41 of the rotor 40 extends, and includes a pin side contact portion 51 that is an arcuate surface that curves along the outer periphery of the cylindrical portion 41, and a power supply side. A power output unit such as an electronic ballast outside the socket 30 and a quick connection terminal 52 connected via an electric wire are included. The diameter of the pin side contact portion 51 is narrower than the pin pitch of the power supply pins 26 of the straight tube LED lamp 20. Therefore, as will be described later, when the straight tube LED lamp 20 rotates in the lamp circumferential direction, the pin side contact portion 51 contacts the outer surface of the shaft portion 26a of the power supply pin 26 and is connected to the power supply pin 26. .

  The socket cover 60 holds the rotor 40 and a pair of conductive fittings 50. The socket cover 60 includes a pair of claw portions 61 that are engaged with the pair of attachment portions 35 on the inner wall of the socket body 31.

  FIG. 6 is a front view showing a state of the power supply side socket 30 when the straight tube LED lamp 20 rotates in the lamp circumferential direction. In this figure, the straight tube LED lamp 20 is not shown. FIG. 7 is a partial cross-sectional view showing a connection state between the power feed pin 26 and the conductive metal fitting 50.

  6A shows a state when the straight tube LED lamp 20 is inserted into the opening 32 of the socket body 31, that is, a state before the rotor 40 is rotated (rotated by 0 degrees). (B) is a state when the straight tube LED lamp 20 is rotated 30 degrees together with the rotor 40, that is, a state where the rotor 40 is rotated 30 degrees. (C) is a state when the straight tube LED lamp 20 is rotated by 60 degrees together with the rotor 40, that is, a state where the rotor 40 is rotated by 60 degrees. (D) is a state when the straight tube LED lamp 20 is rotated 90 degrees together with the rotor 40, that is, a state where the rotor 40 is rotated 90 degrees.

  In the state of (a), even if the power supply pin 26 is inserted into the pin insertion hole 43, it is not connected to the conductive metal fitting 50 (not in contact with the pin side surface contact portion 51), and the power supply pin 26 is in the state of (b) to (d). And the conductive metal fitting 50 are connected (the feed pin 26 contacts the pin side contact portion 51).

  When the straight tube type LED lamp 20 is attached to the power supply side socket 30, the rotor 40 is arranged such that the pin insertion holes 43 of the rotor 40 are aligned in a direction parallel to the height direction of the socket body 31 as shown in FIG. It is necessary to adjust the circumferential position. When the pin insertion holes 43 are not aligned in the direction parallel to the height direction of the socket body 31 as in (b) to (d), the retaining portion 26b of the power supply pin 26 contacts the front surface 50a of the conductive metal fitting 50. The power supply pin 26 cannot be inserted into the pin insertion hole 43 (that is, the power supply pin 26 does not penetrate the pin insertion hole 43). Therefore, in the state of (b) to (d), the straight tube LED lamp 20 cannot be mounted on the power supply side socket 30.

  Even when the straight LED lamp 20 is removed from the power supply side socket 30, the rotor 40 is arranged so that the pin insertion holes 43 of the rotor 40 are aligned in a direction parallel to the height direction of the socket body 31 as shown in FIG. It is necessary to adjust the circumferential position. When the pin insertion holes 43 are not aligned in the direction parallel to the height direction of the socket body 31 as in (b) to (d), the retaining portion 26 b of the power supply pin 26 is caught on the rear surface 50 b of the conductive metal fitting 50. The power feed pin 26 cannot be removed from the pin insertion hole 43. Therefore, the straight tube LED lamp 20 cannot be removed from the power supply side socket 30 in the states (b) to (d).

  Even when the straight tube type LED lamp 20 is mounted on the power supply side socket 30, the power supply pin 26 is not connected to the conductive metal fitting 50 arranged inside the socket body 31 in the state of (a), so that the straight tube type The LED lamp 20 is not lit.

  When the straight tube LED lamp 20 is rotated in the lamp circumferential direction in the state of (a), the convex portion 44 of the rotor 40 passes (slides) through the guide rib 33 of the socket main body 31, but as described above, Since the distance D <b> 1 between the convex portions 44 is longer than the distance D <b> 2 between the facing portions of the guide rib 33, the rotor 40 is elastically deformed so as to narrow the width of the notch 45. At this time, as shown in FIG. 7, the outer surface of the shaft portion 26a of the power supply pin 26 and the pin side surface contact portion 51 of the conductive metal fitting 50 come into contact with each other, and the straight tube LED lamp 20 can be turned on. As described above, since the diameter of the pin side surface contact portion 51 is narrower than the pin pitch of the power supply pins 26, the pin side surface contact portion 51 contacts the power supply pin 26 by pushing it toward the center of the arc. Thereafter, when the convex portion 44 of the rotor 40 reaches (fits) the fixing groove 34 of the socket body 31, the rotor 40 is not elastically deformed, and the rotor 40 is positioned in the state (b). Therefore, the user can obtain an appropriate click feeling.

  When the straight tube LED lamp 20 is rotated in the lamp circumferential direction in the state of (b) and the rotor 40 is positioned in the state of (c), the straight tube LED lamp 20 is moved in the state of (c). The same applies to the case where the rotor 40 is positioned in the state (d) by rotating in the lamp circumferential direction.

  As described above, in the present embodiment, the power supply side socket 30 (an example of a lamp socket) includes the rotor 40 and the socket body 31. The rotor 40 is provided with a pair of pin insertion holes 43 (an example of a through hole) penetrating in the axial direction. The socket body 31 is provided with an opening 32 into which a straight tube LED lamp 20 (an example of a straight tube lamp) into which a pair of power supply pins 26 protrude from a power supply side cap 24 (an example of a cap) is inserted. The socket body 31 is provided with a rotor 40 and a guide rib 33 (an example of a guide portion) that guides the rotation of the rotor 40. One of the surfaces of the rotor 40 and the guide rib 33 facing each other (that is, the outer peripheral surface of the rotor 40 and the inner peripheral surface of the guide rib 33) (in this embodiment, the outer peripheral surface of the rotor 40). However, the inner peripheral surface of the guide rib 33 may be provided with a pair of convex portions 44. A state in which the pair of pin insertion holes 43 are at a position other than a predetermined position on the other surface (in this embodiment, the inner peripheral surface of the guide rib 33 but may be the outer peripheral surface of the rotor 40). Thus, a plurality of pairs of fixing grooves 34 (examples of recesses) in which each pair can be fitted with a pair of protrusions 44 are provided. Here, the predetermined position is a position at which the pair of power supply pins 26 of the straight tube LED lamp 20 can be inserted into the pair of pin insertion holes 43. In the present embodiment, the position of the pin insertion hole 43 in the state of FIG. 6A corresponds to the “predetermined position”. And the position of the pin insertion hole 43 in the states of (b) to (d) in FIG. 6 corresponds to “a position other than a predetermined position”.

  When the power supply side cap 24 of the straight tube LED lamp 20 is inserted into the opening 32 with the pair of pin insertion holes 43 being in a predetermined position in the circumferential direction of the rotor 40, the pair of power supply pins 26 is It is inserted into the pair of pin insertion holes 43. When the straight tube LED lamp 20 is rotated in this state, the rotor 40 is rotated by pressing the inner peripheral surfaces of the pair of pin insertion holes 43 by the pair of power supply pins 26. And when one pair of convex part 44 comes to the position which opposes any one pair of fixed groove 34 among several pairs of fixed grooves 34, one pair of convex part 44 and the said one pair of fixed groove 34 fit. By combining, the rotor 40 is positioned in the circumferential direction.

  In the present embodiment, the six pairs of fixing grooves 34 are provided at positions shifted by approximately 30 degrees in the circumferential direction of the rotor 40. However, the number and positions of the pairs of fixing grooves 34 are changed as appropriate. It doesn't matter. Further, in the present embodiment, as the six pairs of fixing grooves 34, five pairs that can be fitted to the pair of convex portions 44 in a state where the pair of pin insertion holes 43 are in “positions other than a predetermined position”. A fixed groove 34 and a pair of fixed grooves 34 that can be fitted to the pair of convex portions 44 in a state where the pair of pin insertion holes 43 are in a “predetermined position” are provided. The former fixing grooves 34 (5 pairs of fixing grooves 34) may be two or more pairs. Further, the latter fixing grooves 34 (a pair of fixing grooves 34) are not essential. However, the presence of the latter allows the rotor 40 to be positioned even when the pin insertion hole 43 is in a predetermined position. .

  In the present embodiment, the power supply side socket 30 further includes a pair of conductive metal fittings 50. Each conductive fitting 50 includes a pin side contact portion 51 (an example of a bending portion) that is curved in an arc shape along the circumferential direction of the rotor 40, and a quick connection terminal 52 (terminal) that is electrically connected to an external power source. Part) is provided integrally. As shown in FIG. 5, the pair of conductive metal fittings 50 are attached to the inside of the socket body 31 so as to face each other with a predetermined gap G therebetween. In the present embodiment, the position where the pair of pin insertion holes 43 overlaps with the predetermined gap G in the axial direction of the rotor 40 corresponds to the predetermined position.

  When the power supply side cap 24 of the straight tube LED lamp 20 is inserted into the opening 32 with the pair of pin insertion holes 43 being in a predetermined position in the circumferential direction of the rotor 40, the pair of power supply pins 26 is It is inserted into the pair of pin insertion holes 43 and reaches the predetermined gap G. When the straight tube LED lamp 20 is rotated in this state, the rotor 40 rotates and the side surfaces of the pair of power supply pins 26 come into contact with the pin side surface contact portion 51, so that the pair of power supply pins 26 are quickly connected. It is electrically connected to the terminal 52 (and to an external power supply via the quick connection terminal 52). As a result, the straight tube LED lamp 20 can be turned on.

  According to the present embodiment, since a general-purpose straight tube LED lamp 20 can be used, the utility is high. Moreover, no matter what direction the straight tube LED lamp 20 is rotated, there is no change in the internal structure of the straight tube LED lamp 20 (such as twisting of the internal electric wire). Because it can be lit, safety is high. Further, no matter what direction the straight tube LED lamp 20 is rotated, the power supply pin 26 of the straight tube LED lamp 20 is in reliable contact with the pin side contact portion 51 of the conductive metal fitting 50, so that the reliability is high. . Further, the straight tube LED lamp 20 can be positioned at an arbitrary circumferential position, and further, since the straight tube LED lamp 20 is also held by the ground side socket 12, the straight tube LED lamp 20 can be prevented from falling. The distance between the ground side socket 12 and the power supply side socket 30 is substantially equal to the length of the straight tube LED lamp 20. The metal receiving part of the ground side socket 12 is slidable inside the ground side socket 12 so that the straight tube LED lamp 20 can be attached and detached by sliding the metal receiving part. It has become. That is, the straight tube LED lamp 20 can be reliably prevented from coming off or falling by sliding the metal receiving part of the ground side socket 12.

  Here, an outline of a method for assembling the power supply side socket 30 will be described.

  The guide rib 33 of the socket body 31 and the rotor 40 are brought into contact with each other, and the convex portion 44 of the rotor 40 is fitted into the fixing groove 34 of the socket body 31. At this time, the fixing groove 34 into which the convex portion 44 of the rotor 40 is fitted may be an arbitrary fixing groove 34, but the pin insertion holes 43 of the rotor 40 are arranged in parallel with the height direction of the socket body 31. Is desirable. By doing so, the power supply side cap 24 of the straight tube LED lamp 20 can be immediately inserted into the power supply side socket 30 after assembly.

  Thereafter, a pair of conductive metal fittings 50 are arranged outside the cylindrical portion 41 of the rotor 40 so that the pin side contact portions 51 face each other, and the mounting portion 35 of the socket body 31 and the claw portion 61 of the socket cover 60 are fitted. As described above, the socket cover 60 is attached to the socket body 31.

  As described above, the power supply side socket 30 is sequentially assembled in one direction, so that the assembly is easy.

  As described above, the power supply side socket 30 according to the present embodiment includes the socket body 31, the rotor 40, the pair of conductive fittings 50, and the socket cover 60. The socket body 31 has an opening 32 on the front surface, and has guide ribs 33 along the circumference inside the opening 32, and has fixing grooves 34 at least at four locations in the middle of the guide rib 33. . The rotor 40 is attached to the opening 32 of the socket body 31 and has a pin insertion hole 43 into which the power supply pin 26 (lamp pin) of the straight tube LED lamp 20 is inserted. It has the convex part 44 and has a rotation mechanism. The pair of conductive metal fittings 50 is disposed outside the rotor 40 so that the power feeding pin 26 is inserted into the rotor 40 and contacts the outside of the power feeding pin 26 when the straight tube LED lamp 20 is rotated. The The socket cover 60 holds the rotor 40 and the pair of conductive fittings 50 and is attached to the socket body 31.

  According to the present embodiment, a new straight tube LED lamp that is generally available without a mechanism for rotating the base and the tube is used, and the new straight tube LED lamp is mounted on the lamp socket after the new straight tube LED lamp is mounted. In a state where the LED lamp and the conductive metal fitting 50 inside the lamp socket are connected, the irradiation surface of the new straight tube type LED lamp can be moved in accordance with the fixing groove 34 of the lamp socket body. Further, since the lamp pin of the new straight tube LED lamp is inserted into the lamp socket in the lamp axis direction, the new straight tube LED lamp does not fall.

Embodiment 2. FIG.
In the present embodiment, the conductive metal fitting 50 is different from the first embodiment. Therefore, hereinafter, the shape of the conductive metal fitting 50 according to the present embodiment will be described.

  FIG. 8 is an exploded perspective view of the power supply side socket 30. FIG. 9 is a rear view of the power supply side socket 30 with the socket cover 60 removed. FIG. 10 is a partial cross-sectional view showing a connection state between the power feed pin 26 and the conductive metal fitting 50.

  In the present embodiment, the conductive metal fitting 50 is an arcuate surface that extends in a direction perpendicular to the extending direction of the cylindrical portion 41 of the rotor 40 as shown in FIG. 9 and curves along the outer periphery of the cylindrical portion 41. It has a pin tip contact portion 53 and a quick connection terminal 52 connected to a power supply output portion such as an electronic ballast outside the power supply side socket 30 via an electric wire. The pin tip contact portion 53 is in surface contact with the retaining portion 26b of the power supply pin 26 as shown in FIG. Further, the pin tip contact portion 53 is in a position not overlapping the pin insertion hole 43 in the circumferential direction of the rotor 40 in the same state as in FIG. 6A and is not connected to the retaining portion 26b. When the straight tube LED lamp 20 rotates in the lamp circumferential direction and the pin tip contact portion 53 is in a state similar to (b) to (d) in FIG. 6, the outer surface of the retaining portion 26 b of the power supply pin 26. In contact with the power supply pin 26.

  The pin tip contact portion 53 has a spring property and can be elastically deformed. When the straight tube LED lamp 20 rotates in the lamp circumferential direction, the tip surface (bottom surface) of the power supply pin 26 presses the pin tip contact portion 53, and the pin tip contact portion 53 is elastically deformed. Maintain contact with. Further, when the straight tube LED lamp 20 rotates, the pair of power supply pins 26 also rotate. However, the pin tip contact portion 53 follows the rotation of the pair of power supply pins 26 due to the spring property of the pin tip contact portion 53. To maintain contact.

  As described above, in the present embodiment, each conductive metal fitting 50 includes a pin tip contact portion 53 (an example of a bending portion) that curves in an arc shape along the circumferential direction of the rotor 40, and an external power source. An electrically connected quick connection terminal 52 (an example of a terminal portion) is integrally provided. As shown in FIG. 9, the pair of conductive metal fittings 50 are attached to the inside of the socket body 31 so as to face each other with a predetermined gap G therebetween.

  When the power supply side cap 24 of the straight tube LED lamp 20 is inserted into the opening 32 with the pair of pin insertion holes 43 being in a predetermined position in the circumferential direction of the rotor 40, the pair of power supply pins 26 is It is inserted into the pair of pin insertion holes 43 and reaches the predetermined gap G. When the straight tube type LED lamp 20 is rotated in this state, the rotor 40 rotates and the tip of the pair of power supply pins 26 comes into contact with the pin tip contact portion 53, so that the pair of power supply pins 26 are quickly connected. It is electrically connected to the terminal 52 (and to an external power supply via the quick connection terminal 52). As a result, the straight tube LED lamp 20 can be turned on.

  According to the present embodiment, the same effect as in the first embodiment can be obtained.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to these embodiment, A various change is possible as needed.

  DESCRIPTION OF SYMBOLS 10 Lighting fixture, 11 Appliance body, 12 Ground side socket, 20 Straight tube type LED lamp, 21 Ground side base, 22 Lamp receiving part, 23 Ground pin, 23a Cylindrical part, 23b Ellipse part, 24 Power supply side base, 25 Lamp hook 26, power supply pin, 26a shaft, 26b retaining portion, 30 power supply side socket, 31 socket body, 32 opening, 33 guide rib, 34 fixing groove, 35 mounting portion, 40 rotor, 41 cylindrical portion, 42 Portion, 43 pin insertion hole, 44 convex portion, 45 notch portion, 50 conductive metal fitting, 50a front surface, 50b rear surface, 51 pin side contact portion, 52 quick connection terminal, 53 pin tip contact portion, 60 socket cover, 61 claw portion.

Claims (5)

A rotor provided with a pair of through holes penetrating in the axial direction;
A socket body provided with an opening into which a straight tube lamp in which a pair of power supply pins protrude from a base is inserted, and a guide portion to which the rotor is attached and guides the rotation of the rotor;
When the base of the straight tube lamp is inserted into the opening with the pair of through holes being in a predetermined position in the circumferential direction of the rotor, the pair of power supply pins are inserted into the pair of penetrations. Inserted into the hole,
When the straight tube lamp is rotated in a state where the pair of power feeding pins are inserted into the pair of through holes, the inner peripheral surfaces of the pair of through holes are pressed by the pair of power feeding pins. The rotor rotates,
Of the surfaces of the rotor and the guide portion that face each other, a pair of convex portions are provided on one surface, and the pair of through holes are located on a position other than the predetermined position on the other surface. In a state, each pair is provided with a plurality of pairs of recesses that can be fitted with the pair of protrusions,
When the rotor rotates and the pair of convex portions comes to a position facing any one of the pair of concave portions, the pair of convex portions and the pair of concave portions are fitted. By combining, the rotor is positioned in the circumferential direction ,
A notch portion cut out from one end to the middle along the axial direction of the rotor is provided at a position different from the pair of through holes in the circumferential direction of the rotor, and the 1 lamp socket characterized that you absorb the elastic deformation of the rotor caused by the convex portions of the pair is pressed by the guide portion. The lamp socket further includes:
A curved portion that is curved in an arc shape along the circumferential direction of the rotor and a terminal portion that is electrically connected to an external power source are integrally provided, and the inner side of the socket body is opposed to each other with a predetermined gap therebetween. A pair of conductive metal fittings attached to the
The predetermined position is a position where the pair of through holes overlaps the predetermined gap when viewed from the axial direction of the rotor,
When the straight tube lamp base is inserted into the opening in a state where the pair of through holes are at the predetermined position in the circumferential direction of the rotor, the pair of power feeding pins is the pair of power supply pins. Inserted into the through-hole to reach the predetermined gap,
When the straight tube lamp is rotated in a state where the pair of power supply pins reach the predetermined gap, the rotor rotates so that the pair of power supply pins contact the curved portion. The lamp socket according to claim 1, wherein the pair of power feeding pins are electrically connected to the terminal portion.   When the straight tube lamp is rotated in a state where the pair of power supply pins reach the predetermined gap, the rotor rotates and the side surfaces of the pair of power supply pins contact the curved portion. The lamp socket according to claim 2, wherein the pair of power supply pins are electrically connected to the terminal portion.   When the straight tube lamp is rotated in a state where the pair of power supply pins reach the predetermined gap, the rotor rotates and the tips of the pair of power supply pins come into contact with the curved portion. The lamp socket according to claim 2, wherein the pair of power supply pins are electrically connected to the terminal portion. A lamp socket according to any one of claims 1 to 4;
An instrument body to which the lamp socket is attached;
A lighting device that is a lighting device housed in the fixture main body and includes a lighting device that lights a straight tube lamp mounted in the lamp socket.

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