JP5440800B2 - socket - Google Patents

Description

  The embodiment of the present invention is mounted by inserting and rotating a pair of L-shaped lamp pins having a pair of leg portions of a straight tube lamp and bent portions directed outward from the tips of the leg portions. Related to sockets.

  In general, a straight tube fluorescent lamp having G13 type caps at both ends from which a pair of cylindrical lamp pins protrude and a lighting device using a socket to which the fluorescent lamp is connected are often used.

  Some sockets are rotationally mounted, and after a pair of lamp pins of a straight tube fluorescent lamp is inserted from the front end side of the socket and the straight tube fluorescent lamp is arranged on the front side of the socket, a straight tube fluorescent lamp Is rotated with respect to the socket so that the pair of lamp pins are electrically connected to and held by the pair of terminals disposed in the socket.

  Also, a straight tube lamp using an LED element has been proposed. In this straight tube lamp, there is a straight tube lamp having a base having a pair of L-shaped lamp pins in addition to a straight tube lamp using a G13-type base as in the prior art.

JP 2003-100402 A Utility Model Registration No. 3152509

  However, sufficient studies have not been made on the mounting of a straight tube lamp having a pair of L-shaped lamp pins.

  The problem to be solved by the present invention is to provide a socket capable of guiding a straight tube lamp having a pair of L-shaped lamp pins to a predetermined mounting position.

  The socket of the embodiment is mounted by inserting and rotating a pair of L-shaped lamp pins of a straight tube lamp. The socket includes a socket body, a rotor disposed in the socket body, and a pair of terminals. An insertion port into which a pair of lamp pins can be inserted is provided on a surface that intersects the front surface of the socket body that faces the straight tube lamp when the straight tube lamp is mounted. An opening that communicates with the insertion port and that allows the pair of lamp pins to rotate is provided in front of the socket body. An inclined portion is provided at the edge of the opening of the socket body so as to project and incline from the front side to the back side along the lamp rotation direction.

  According to the present invention, it can be expected that a straight tube lamp having a pair of L-shaped lamp pins is guided to a predetermined mounting position.

It is the perspective view which removed the cover of the socket which shows one Embodiment, and was seen from the back side. An example of mounting a straight tube lamp on the socket is shown, (a) is a cross-sectional view of the straight tube lamp in a predetermined mounting position, and (b) is a socket body in which the straight tube lamp is more than the predetermined mounting position. Sectional drawing of the state away from the front of (2), (c) is a sectional view of another state where the straight tube lamp is further away from the front of the socket body than the predetermined mounting position. It is a perspective view which shows a part of socket same as the above and a straight tube | pipe type | mold lamp. It is a perspective view of the decomposition | disassembly state of a socket same as the above. It is a perspective view of the straight tube | pipe type lamp connected to a socket same as the above. It is a side view of the lighting fixture using a socket same as the above. It is a perspective view of a lighting fixture same as the above.

  Hereinafter, an embodiment will be described with reference to the drawings.

  FIG. 6 and FIG. 7 show a lighting fixture 11 which is an embedded lighting fixture of the type for two straight tube fluorescent lamps, and two straight tube lamps 12 are used for the lighting fixture 11.

  The luminaire 11 is an elongated bottom fixture body 15 that is embedded in the ceiling surface, and is disposed opposite to both ends in the longitudinal direction of the fixture body 15 so that the ends of the straight tube lamps 12 are respectively mounted. Two sets of sockets 16 and 17, and a lighting device 18 that is disposed in the fixture body 15 and lights up the straight tube lamp 12. The socket 16 on one end to which one end of the straight tube lamp 12 is attached is the power supply side, and the socket 17 on the other end to which the other end of the straight tube lamp 12 is attached is the non-power supply side and on the ground side. is there. Note that the ground-side socket 17 may be used for both ground connection and attachment of the straight tube lamp 12 or only for attachment of the straight tube lamp 12.

  As shown in FIG. 5, the straight tube lamp 12 includes a translucent cover 21, which is a tube formed in a straight tube shape with a tube length and a tube diameter similar to those of the arc tube of a straight tube fluorescent lamp. The light source unit 22 accommodated in the transparent cover 21 and the caps 23 and 24 provided at both ends of the translucent cover 21 are provided. The base 23 on one end of the straight tube lamp 12 is a power supply side mounted on the socket 16 on the power supply side, and the base 24 on the other end side of the straight tube lamp 12 is not supplied with power on the socket 17 on the ground side. This is the earth side. Note that the ground-side base 24 may be either attached to the socket 17 or may be attached only to the socket 17, either of which may be used.

  The light source unit 22 includes a plurality of substrates 26 on which a plurality of semiconductor light emitting elements 25 such as LED elements and EL elements are mounted, and a mounting plate 27 to which these substrates 26 are attached. As the mounting method of the semiconductor light emitting element 25, in the case of an LED element, a method of mounting a plurality of SMD (Surface Mount Device) packages with connection terminals in which LED chips are mounted on the substrate 26, A COB (Chip On Board) method for mounting LED elements is used.

  As shown in FIG. 3, a protrusion 28 protruding along the radial direction is formed on the end face of the feeding-side base 23, and a pair of electrical connections from the protrusion 28 to the light source unit 22 is made. A lamp pin 29 is projected. These lamp pins 29 are formed of a flat plate having a quadrangular cross section, projecting along the longitudinal direction of the straight tube lamp 12, and the leg 29a from the tip of the leg 29a to the other leg 29a It is bent and formed into an L shape having a bent portion 29b protruding outward so as to be separated from each other. The plate thickness of the lamp pins 29 is 1 mm, the distance between the centers of the leg portions 29a of the pair of lamp pins 29 is 16 mm, and the distance between the leg portions 29a of the pair of lamp pins 29 is 15 mm. In contrast, the G13 type base has a pair of lamp pins with a diameter of 2.29 to 2.67 mm, a distance between the centers of the pair of lamp pins of 12.7 mm, and a distance between the outside of the pair of lamp pins of 15.17 mm. Therefore, the pair of lamp pins 29 of the base 23 on the power supply side are different in shape from the pair of lamp pins of the G13-type base and are wider than the pair of lamp pins of the G13-type base, and are compatible with the G13-type base. There is no sex.

  As shown in FIG. 6, one ground pin 30 protrudes from the center of the tube axis of the end face of the end face of the base 24 on the ground side. The ground pin 30 has a columnar leg portion 30a protruding from the base 24, and an elliptical (oval-shaped) holding portion 30b provided at the tip of the leg portion 30a.

  In the straight tube lamp 12, the direction in which the pair of lamp pins 29 are aligned and the longitudinal direction of the holding portion 30b of the ground pin 30 coincide with each other, and the surface parallel to these directions and the semiconductor light emitting element of the light source unit 22 25 light emitting surfaces are provided in parallel. That is, the straight tube lamp 12 is provided so that light from the light emitting surface of the semiconductor light emitting element 25 of the light source unit 22 can be irradiated in a predetermined irradiation direction in a state where the straight lamp 12 is correctly mounted between the sockets 16 and 17.

  As shown in FIG. 6, the sockets 16 and 17 have a pair of lamp pins 29 and a ground pin 30 inserted into their predetermined mounting positions from the front end surfaces of the sockets 16 and 17, and 90 around the tube axis of the straight tube lamp 12. A rotation mounting type that is mounted at a predetermined mounting position by rotating is used.

  Next, FIGS. 1 to 4 show the socket 16 on the power supply side. The socket 16 includes a socket body 41, a rotor 42 disposed in the socket body 41, and a pair of terminals 43. Hereinafter, with respect to the socket 16, the side attached to the instrument body 15 is referred to as the base end, and the opposite side is referred to as the front end, and the surface facing the end surface of the straight tube lamp 12 when mounted is the front surface, the opposite side is the back surface, and The space between the front and back is called the side.

  The socket body 41 is made of an insulating synthetic resin, and includes a case 46 whose back surface is opened and a cover 47 that is attached to the back surface of the case 46.

  An attachment portion 48 attached to the instrument body 15 is provided at the base end of the case 46, and an insertion port 49 into which the pair of lamp pins 29 of the straight tube lamp 12 can be inserted is formed at the distal end surface of the case 46. A circular opening 50 is formed on the front surface of the base plate. The circular opening 50 is formed so that the leg 29a of the pair of lamp pins 29 inserted through the insertion opening 49 is rotatable.

  In the case 46, a pair of terminal holding portions 51 for holding the base end sides of the pair of terminals 43 are formed, and a pair of terminal holding portions 52 for holding the distal end sides of the pair of terminals 43 are formed. Yes. An electric wire insertion hole 53 that communicates with each terminal holding portion 51 is formed at the base end of the case 46.

  In the case 46, a wall portion 54 is formed so as to project vertically from the front side to the back side at the edge of the opening 50 opposite to the insertion port 49 at the tip and facing the insertion port 49. ing. In the state where the straight tube lamp 12 is in a predetermined mounting position with respect to the socket 16, the wall portion 54 is such that the bent portion 29b of one lamp pin 29 inserted first from the insertion port 49 is behind the wall portion 54. And the leg portion 29a abuts against the wall portion 54 to allow the straight tube lamp 12 to be inserted into a predetermined insertion position with respect to the socket 16, and the straight tube lamp 12 is inserted into the socket 16. On the other hand, in a state where it is far away from the front surface of the socket body 41 than the predetermined mounting position, the tip of the bent portion 29b of one lamp pin 29 inserted first from the insertion port 49 comes into contact with the wall portion 54, and the straight pipe The shape lamp 12 is configured to be restricted from being inserted into the socket 16 at a predetermined insertion position.

  Further, in the case 46, at the edge of the opening 50, on both sides of the insertion area of the lamp pin 29 from the insertion port 49, at both sides of the wall 54 and both sides of the insertion port 49, An inclined portion 55 is formed so as to protrude and incline from the front side to the back side of the case 46 along the lamp rotation direction. These inclined portions 55 are configured by ribs 55a that are curved along the inner peripheral edge of the opening 50 and project perpendicularly to the back side of the case 46, and inclined surfaces 55b formed on the back side of the ribs 55a. Yes. The inclined surface 55b is inclined so as to protrude toward the back side as it moves away from the position of the wall portion 54 and the insertion port 49 in the rotational direction.

  The inclined portion 55 is formed in a region where the bent portion 29b of the pair of lamp pins 29 inserted and rotated from the insertion port 49 into the opening 50 can ride. One end of the inclined portion 55 having the smallest protrusion dimension to the rear side is the same as the protrusion dimension of the wall portion 54, and a pair of lamp pins of the straight tube lamp 12 inserted into the socket 16 at a predetermined insertion position. The 29 bent portions 29b are configured to be able to ride. The other end side of the inclined portion 55 with the largest protrusion dimension to the back side is larger than the back side edge of the terminal 43 held by the terminal holding portions 51 and 52 in the case 46, and the bent portion 29b of the lamp pin 29 is connected to the terminal. It is configured to be able to guide to the back side from 43.

  The front surface of the cover 47 is formed with a plurality of locking portions 58 that are locked to the case 46 in a state where the back surface of the case 46 is closed. A holding projection 59 is provided. Further, on the front surface of the cover 47, a pair of support portions 60 that rotatably support the rotor 42 are projected at positions concentric with the opening 50 of the case 46, and along the periphery of the support portions 60 A guide wall 61 is formed to protrude. A groove portion 60a that allows the lamp pin 29 to pass therethrough is formed between the pair of support portions 60, and a claw portion 60b that prevents and locks the rotor 42 that is rotatably supported is formed at the tip of the pair of support portions 60. ing. Further, the guide wall 61 is formed with a notch 61a for giving a moderation to the rotor 42 at a predetermined rotational position every 90 °.

  The rotor 42 is made of an insulating synthetic resin and is formed in a cylindrical shape that is rotatably fitted around the support portion 60 of the cover 47. A groove portion 64 that allows passage of the lamp pin 29 is formed along the radial direction at a position near the front of the rotor 42.

  The front portion of the rotor 42 is rotatably disposed in the opening 50 of the case 46, and the front surface of the rotor 42 protrudes from the front surface of the case 46 and has a protrusion 28 of the base 23 of the straight tube lamp 12. A pair of fitting protrusions 65 that are slidably fitted are formed to protrude.

  The rear part of the rotor 42 is disposed between the support part 60 and the guide wall 61, and a pair of protrusions 66 are formed to protrude at two locations parallel to the groove direction of the groove part 64 on the outer peripheral surface of the rear part of the rotor 42. ing. The protrusion 66 engages with the notch 61a of the guide wall 61 to give moderation to the rotational position of the rotor 42, and a part of the rotor 42 is elastically deformed around the protrusion 66 so that the protrusion 66 is The rotor 42 is allowed to rotate by contacting the inner peripheral surface of the guide wall 61 and sliding on the inner peripheral surface.

  Further, the terminal 43 is formed of a conductive leaf spring, and is disposed in the wire connecting portion 69 disposed in the terminal holding portion 51 on the proximal end side of the case 46 and the terminal holding portion 52 on the distal end side of the case 46. A connecting plate portion 71 connected to the lamp pin 29 is formed at the tip portion 70 to be connected, and an intermediate portion between the wire connecting portion 69 and the tip portion 70.

  The electric wire connecting portion 69 has an insertion hole 72 through which an electric wire inserted from the electric wire insertion hole 53 is inserted, and a locking piece 73 that is electrically connected to the electric wire inserted through the insertion hole 72 and prevents the electric wire from coming off. have.

  The connection plate portion 71 is formed with a terminal holding portion 74 that is recessed toward the contact surface with which the leg portion 29a of the lamp pin 29 contacts. The terminal holding portion 74 has a recessed surface 74a and a pair of inclined surfaces 74b at both ends of the recessed surface 74a. The terminal 43 is configured such that, in a connected state with the lamp pin 29, both inclined surfaces 74b of the terminal holding portion 74 are in contact with two corners of the outer two portions of the leg portion 29a having a square cross section of the lamp pin 29, respectively. Yes.

  The width dimension of the terminal holding part 74 located at the intermediate part of the connection plate part 71 is formed wider than the width dimension of the connection plate part 71 at both ends from the terminal holding part 74. Both side edges of the inclined surface 74b of the connection plate portion 71 are formed in an inclined shape so as to continuously connect both side edges of the wide recessed surface 74a and both side edges on both sides of the connection plate portion 71.

  The earth-side socket 17 has the earth pin 30 of the straight tube lamp 12 inserted along the longitudinal direction of the holding portion 30b of the earth pin 30 and is rotated by 90 ° about the tube axis of the straight tube lamp 12. As a result, the longitudinal direction of the holding portion 30b of the ground pin 30 is transverse to the insertion direction into the socket 17, and is electrically connected to the terminals arranged in the socket 17 and supported by the socket 17.

  The lighting device 18 shown in FIG. 7 receives a commercial AC power supply, converts AC power into DC power, and converts the DC power into a pair of terminals 43 of the socket 16 on the power feeding side and a pair of straight tube lamps 12. The light source unit 22 is supplied through the lamp pin 29.

  Next, in the lighting fixture 11 configured as described above, when connecting the straight tube lamp 12, as shown in FIG. 6, a pair of lamp pins of the straight tube lamp 12 from the front end surfaces of the sockets 16 and 17 is used. The straight tube lamp 12 is mounted between the sockets 16 and 17 by inserting 29 and the ground pin 30 and rotating 90 ° about the tube axis of the straight tube lamp 12.

  When the lamp pin 29 of the straight tube lamp 12 is attached to the socket 16 on the power supply side (see FIG. 3), the pair of lamp pins 29 of the straight tube lamp 12 are inserted into the groove portion 64 of the rotor 42 from the insertion port 49 of the case 46. And inserted into the opening 50 of the case 46 through the groove 60a of the support 60 of the cover 47.

  At this time, as shown in FIG. 2 (a), when the straight tube lamp 12 is in a predetermined mounting position with respect to the socket 16, the bent portion of one lamp pin 29 inserted first from the insertion port 49 is provided. 29b enters the back side from the wall portion 54 of the case 46, the leg portion 29a contacts the wall portion 54, the pair of lamp pins 29 are disposed in the opening 50 of the case 46, and the straight tube lamp 12 is the socket. 16 is inserted at a predetermined insertion position. At this time, the protrusion 28 protruding from the end face of the base 23 of the straight tube lamp 12 is fitted between the pair of fitting protrusions 65 of the rotor 42.

  In this normal insertion state, the bent portions 29b of the pair of lamp pins 29 are arranged on the back side of the back surface position of the inclined portion 55 of the case 46 and the back surface position of the terminal 43 held in the case 46.

  In addition, as shown in FIG. 2 (b), for example, the straight tube lamp 12 is tilted when the straight tube lamp 12 is not sufficiently inserted into the ground pin 30 side or the socket 17 so that the straight tube lamp 12 In a state where the socket 16 is far away from the front surface of the socket body 41 with respect to the predetermined mounting position, the tip of the bent portion 29b of the lamp pin 29 inserted first from the insertion port 49 is the wall portion 54 of the case 46. The straight tube lamp 12 is restricted from being inserted into the socket 16 at a predetermined insertion position.

  In this incomplete insertion state, since the other lamp pin 29 inserted later into the insertion port 49 is located in the insertion port 49 and not inserted into the opening 50, the straight tube lamp 12 is inserted into the socket. Even if it tries to rotate to attach to 16, the other lamp pin 29 abuts against the part of the case 46 that forms the insertion port 49, and the straight tube lamp 12 cannot be rotated, incomplete insertion It is possible to prevent the straight tube lamp 12 in the state from being attached to the socket 16.

  In addition, as shown in FIG. 2 (c), even if the straight tube lamp 12 is farther from the front of the socket body 41 than the predetermined mounting position with respect to the socket 16, it is inserted first from the insertion port 49. When the bent portion 29b of the lamp pin 29 enters the back side from the wall portion 54 of the case 46, the bent portion 29b of the one lamp pin 29 inserted first from the insertion port 49 is the wall portion 54 of the case 46. The leg portion 29a comes into contact with the wall portion 54 by entering the rear side more, the pair of lamp pins 29 are disposed in the opening 50 of the case 46, and the straight tube lamp 12 is inserted into the socket 16 at a predetermined insertion position. Inserted into.

  In this inserted state, the rotation trajectory of the bent portion 29b of the pair of lamp pins 29 when the straight tube lamp 12 rotates at this position is held in the inclined surface 55b of the inclined portion 55 of the case 46 and the case 46. The terminal 43 is disposed in an area that interferes with the terminal 43.

  When the straight tube lamp 12 is inserted into the socket 16 at a predetermined insertion position (the state shown in FIG. 2 (a) or (c)), the straight tube lamp 12 is rotated with respect to the socket 16. It is possible.

  The straight tube lamp 12 is rotated by 90 ° about the tube axis of the straight tube lamp 12 to the connection position so that the radiation direction of the light is directed to a predetermined irradiation direction. As a result, at least a pair of lamp pins 29 abut on the rotor 42 on the outer diameter side of the support portion 60 of the cover 47, and the rotor 42 rotates together with the straight tube lamp 12. In a state where the straight tube lamp 12 is in a predetermined mounting position with respect to the socket 16, in addition to the pair of lamp pins 29 contacting the rotor 42 on the outer diameter side from the support portion 60 of the cover 47, the base 23 The rotor 42 rotates together with the straight tube lamp 12 by the protrusion 28 coming into contact with the fitting protrusion 65 of the rotor 42.

  When the straight tube lamp 12 is rotated, as shown in FIG. 2A, when the straight tube lamp 12 is in a predetermined mounting position with respect to the socket 16, the straight tube lamp 12 is rotated. Accordingly, the bent portion 29b of the pair of lamp pins 29 moves to the back side of the terminal 43 without interfering with the inclined portion 55 of the case 46 or the terminal 43 held in the case 46.

  Further, when the straight tube lamp 12 is rotated, as shown in FIG. 2 (c), even if the straight tube lamp 12 is farther from the front of the socket body 41 than the predetermined mounting position with respect to the socket 16. When the bent portion 29b of one of the lamp pins 29 inserted in advance from the insertion port 49 enters the back side from the wall portion 54 of the case 46, as shown in FIG. Along with the rotation, the bent portions 29b of the pair of lamp pins 29 abut on the inclined surfaces 55b of the pair of inclined portions 55 of the case 46 corresponding to the rotation direction.

  Since the inclined surfaces 55b of the inclined portions 55 project and incline toward the back side of the case 46 along the rotation direction of the straight tube lamp 12, the bent portions of the pair of lamp pins 29 are along the inclined surfaces 55b of the inclined portions 55. 29b rotates and moves to the back side, the straight tube lamp 12 approaches the front surface of the socket body 41, and the straight tube lamp 12 is automatically pulled into the socket 16 at a predetermined mounting position.

  At this time, in a state where the bent portions 29b of the pair of lamp pins 29 ride on the pair of inclined portions 55, the leg portions 29a of the pair of lamp pins 29 are formed by the ribs 55a of the pair of inclined portions 55 and the edges of the opening 50, Since the movement of the pair of lamp pins 29 in the direction facing each other is restricted, the state where the bent portions 29b of the pair of lamp pins 29 ride on the pair of inclined portions 55 is reliably maintained.

  In this way, the straight tube lamp 12 is located at a predetermined mounting position with respect to the socket 16, and the bent portions 29b of the pair of lamp pins 29 do not interfere with the terminals 43 held in the case 46, It moves to the back side of the terminal 43.

  During the rotation of the straight tube lamp 12, the leg portions 29a of the pair of lamp pins 29 come into contact with the connection plate portions 71 of the pair of terminals 43, and the connection plate portions 71 are elastically deformed outward.

  When the rotor 42 rotates, the protrusion 66 of the rotor 42 is rotated while sliding on the inner peripheral surface of the guide wall 61 by detaching from the notch 61a of the guide wall 61, and the pair of lamp pins 29 are connected to each other. The protrusion 66 of the rotor 42 fits into the notch 61a located next to the guide wall 61, and a load is applied to the rotation of the straight tube lamp 12, causing the straight tube lamp 12 to rotate to the connection position. Can be confirmed.

  When the straight tube lamp 12 is rotated to a predetermined connection position, the groove 64 of the rotor 42 is disengaged from the position of the insertion port 49 of the case 46 and is closed at the edge of the opening 50 of the case 46, and the pair of lamp pins 29 Is prevented from dropping from the insertion port 49 of the case 46. Further, the bent portions 29b of the pair of lamp pins 29 are disposed on the back side of the terminal 43, and the lamp pins 29 are prevented from falling off from the opening 50 of the case 46.

  Then, when the straight tube lamp 12 is rotated to a predetermined connection position, the legs of the pair of lamp pins 29 having a square cross section are formed on both inclined surfaces 74b of the terminal holding portion 74 provided on the connection plate portion 71 of the pair of terminals 43. The two corners on the outside of the portion 29a are in contact with each other, and each terminal 43 is held in contact with each lamp pin 29 at two points.

  On the other hand, the ground pin 30 of the straight tube lamp 12 is inserted by the ground pin 30 of the straight tube lamp 12 along the longitudinal direction of the holding portion 30b of the ground pin 30 and rotated by 90 ° about the tube axis of the straight tube lamp 12 As a result, the longitudinal direction of the holding portion 30b of the ground pin 30 is transverse to the insertion direction into the socket 17, and is electrically connected to the terminals arranged in the socket 17 and supported by the socket 17. .

  Then, by the operation of the lighting device 18, DC power from the lighting device 18 is supplied to the light source unit 22 through the pair of terminals 43 of the socket 16 on the power feeding side and the pair of lamp pins 29 of the straight tube lamp 12, and the light source unit 22 Each semiconductor light emitting element 25 is turned on, and light from each semiconductor light emitting element 25 passes through the translucent cover 21 and is irradiated in a predetermined irradiation direction below the lighting fixture 11.

  When the straight tube lamp 12 is removed, the straight tube lamp 12 is rotated by 90 ° in the direction opposite to that when the straight tube lamp 12 is mounted. Thus, in the socket 16 on the power supply side, the groove portion 64 of the rotor 42 that rotates together with the pair of lamp pins 29 coincides with the insertion port 49 of the case 46, so that the pair of lamp pins 29 are inserted through the insertion port 49 of the case 46. Can be removed. On the other hand, in the socket 17 on the ground side, the longitudinal direction of the holding portion 30b of the ground pin 30 coincides with the insertion direction with respect to the socket 17, and the ground pin 30 can be removed from the socket 17.

  As described above, in the socket 16 on the power supply side of the present embodiment, the edge portion of the opening 50 of the socket body 41 is provided with the inclined portion 55 that protrudes and inclines from the front side to the back side along the lamp rotation direction. The straight tube lamp 12 in which the L-shaped lamp pin 29 is inserted into the opening 50 from the insertion port 49 of the socket body 41 is further away from the front of the socket body 41 than the predetermined mounting position. Even when the lamp is rotated, the bent portion 29b of the lamp pin 29 rides on the inclined portion 55, and the inclined portion 55 can guide the straight tube lamp 12 to a predetermined mounting position. Can be installed securely.

  Further, the straight tube lamp 12 is attached to the socket 16 on the edge of the opening 50 opposite to the insertion port 49 of the socket body 41 and facing the insertion port 49 from the predetermined mounting position of the socket body. Since the wall portion 54 that restricts the insertion of the lamp pin 29 in a state far away from the front of the 41 is provided, it is possible to prevent the straight tube lamp 12 in an incompletely inserted state from being attached to the socket 16.

  Further, in a state where the bent portions 29b of the pair of lamp pins 29 ride on the pair of inclined portions 55, the leg portions 29a of the pair of lamp pins 29 are paired by the ribs 55a of the pair of inclined portions 55 and the edges of the opening 50. Since the movement of the lamp pins 29 in the direction in which the lamp pins 29 face each other is restricted, the state where the bent portions 29b of the pair of lamp pins 29 ride on the pair of inclined portions 55 can be reliably maintained.

  In addition, since the width dimension of the terminal holding portion 74 located at the intermediate portion of the connection plate portion 71 of the terminal 43 is formed wider than the width dimension at both ends from the terminal holding portion 74 of the connection plate portion 71, the terminal The spring property of the holding portion 74 is enhanced, and the lamp pin 29 connected to the terminal holding portion 74 can be reliably held. Further, if the overall width dimension of the connection plate portion 71 is increased, the bent portion 29b of the lamp pin 29 that rotates when the straight tube lamp 12 is mounted may interfere with the terminal plate portion 71 and forcibly deform the terminal 43. However, the bent portion 29b of the lamp pin 29 that rotates when the straight tube lamp 12 is mounted moves to the back side of the terminal 43, that is, the region at both ends of the terminal holding portion 74 does not increase the width dimension. By only increasing the width dimension, the spring property for holding the lamp pin 29 can be enhanced, and the bent portion 29b of the rotating lamp pin 29 can be prevented from interfering with the terminal 43.

  Although the wall portion 54 is preferably provided, the wall portion 54 may not be provided because the straight tube lamp 12 can be guided to the predetermined mounting position by the inclined portion 55 even when the wall portion 54 is not provided.

  Further, the terminal 43 may have a wider width on the electric wire connecting portion 69 side to enhance the spring property.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

12 Straight tube lamp
16 socket
29 Lamp pin
29a Leg
29b Bend
41 Socket body
42 Rotor
43 terminals
49 insertion slot
50 openings
54 Wall
55 Slope

Claims (3)

A socket to be mounted by inserting and rotating a pair of L-shaped lamp pins having a pair of leg portions provided at one end of a straight tube lamp and a bent portion directed outward from the tip of the leg portions. Because
Provided on a surface intersecting the front surface facing the straight tube lamp when the straight tube lamp is mounted, and provided with an insertion port into which the pair of lamp pins can be inserted, and in communication with the insertion port on the front surface A socket body having an opening in which a pair of leg portions of the lamp pin is rotatable, and an inclined portion provided at an edge of the opening and projecting and inclined from the front side to the back side along the lamp rotation direction; ;
A rotor disposed in the socket body and rotating with respect to the socket body as the straight tube lamp rotates;
A pair of terminals disposed in the socket body and electrically connected to the pair of lamp pins;
A socket characterized by comprising: The socket body is provided at an edge of the opening facing the insertion port, and the straight tube lamp is inserted from the insertion port in a state of being separated from the front surface of the socket body from a predetermined mounting position. The socket according to claim 1, further comprising a wall portion that restricts insertion of the lamp pin. One end and the other end of the terminal are held by the socket body, the lamp pin is connected to the intermediate portion, and the width of the intermediate portion is wider than that of the one end and the other end. The socket according to claim 1 or 2, characterized by the above-mentioned.

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