JP2014096380A - Receptacle, and lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receptacle capable of surely connecting a pin to a terminal and preventing the pin from falling off.SOLUTION: A receptacle 16 includes: a receptacle body 41 in which a pin mounting opening is provided on a front face thereof; and an insertion groove 49 is provided from a tip surface perpendicular to the front face to the pin mounting opening on the front face. The pin 28 of a straight-tube lamp is inserted from the insertion groove 49 of the tip surface of the receptacle body 41 into the pin mounting opening and a shaft part 29 of the pin 28 is inserted from the insertion groove 49 on the front face of the receptacle body 41 into the pin mounting opening, and the pin 28 is rotated with the tube axis of the straight-tube lamp as a center to mount the lamp to the receptacle 16. The receptacle 16 allows rotation of the pin 28 the shaft part 29 of which is inserted in the pin mounting opening of the receptacle body 41, and includes a rotation regulating part 71 for regulating rotation of the pin 28 positioned in the insertion groove 49 before the shaft part 29 is inserted in the pin mounting opening of the receptacle body 41.

Description

  Embodiments of the present invention relate to a socket for connecting a straight tube lamp in which a pin having a shaft portion at one end and a connecting portion having an elliptical cross section at the tip of the shaft portion is projected, and a lighting device using the socket.

  In general, there are many illuminating devices using a straight tube fluorescent lamp having G13 type caps at both ends from which a pair of lamp pins having a circular cross section project, and a socket for a straight tube fluorescent lamp to which the straight tube fluorescent lamp is connected. It is used.

  In such a straight tube fluorescent lamp socket, the lamp pins at both ends of the straight tube fluorescent lamp are inserted from the end surfaces of a pair of sockets, and are rotated by rotating around the tube axis of the straight tube fluorescent lamp. There is a rotating mounting type.

  In addition, a straight tube lamp using a low power consumption and long-life LED element has been proposed as a light source that can be used in an existing lighting device instead of a straight tube fluorescent lamp.

  This straight tube lamp has the same tube length as that of the straight tube fluorescent lamp, and is provided with a G13-type base in which a pair of base pins having the same circular section as the straight tube fluorescent lamp protrudes at both ends. Similar to the tube fluorescent lamp, it can be mounted between a pair of sockets provided in an existing lighting fixture.

  However, since the straight tube lamp uses a G13 type base that is compatible with the straight tube fluorescent lamp, the straight tube lamp is mistakenly attached to an illumination device equipped with a lighting circuit for the straight tube fluorescent lamp. There is a risk that the straight tube fluorescent lamp may be mounted or the straight tube fluorescent lamp may be erroneously mounted on a lighting device equipped with a lighting circuit for a straight tube lamp.

JP 2003-100402 A Utility Model Registration No. 3152509

In order to prevent erroneous mounting of the straight tube lamp, for example, it is projected one pin to one end of the straight tube lamp, by protruding a pair of lamp pins for power supply to the other end, the G13 shape mouthpiece It is conceivable to eliminate compatibility with the straight tube fluorescent lamp.

  When such a straight tube lamp pin is mounted in a rotary mounting type socket, since there is only one pin, the pin may be rotated even if the pin is not inserted to a predetermined insertion position of the socket. Conceivable. In that case, there is a possibility that the connection between the pin and the terminal arranged in the socket cannot be made reliably, or the pin falls out of the socket.

  This invention is made in view of such a point, and it aims at providing the socket which can prevent the drop-off | omission of a pin while ensuring the connection of a pin and a terminal, and an illuminating device using this socket. .

  The socket according to the embodiment includes a socket body in which a pin mounting opening is provided on the front surface and an insertion groove is provided from a front end surface intersecting the front surface to the pin mounting opening on the front surface. Then, the pin of the straight tube lamp is inserted from the insertion groove on the front end surface of the socket body, the shaft portion of the pin is inserted from the insertion groove on the front surface of the socket body into the pin mounting opening, and the pin is inserted into the tube of the straight tube lamp. Rotate around the shaft and attach to the socket. Further, the socket allows rotation of the pin with the shaft portion inserted into the pin mounting opening of the socket body, and the pin in a state where it is positioned in the insertion groove before the shaft portion is inserted into the pin mounting opening of the socket body. A rotation restricting portion for restricting rotation is provided.

  According to the present invention, the rotation restricting portion restricts the rotation of the pin in the state where it is located in the insertion groove before the shaft portion is inserted into the pin attaching opening of the socket body. It is possible to prevent the pin from being mounted when the shaft part of the socket is not securely inserted or inserted obliquely, and the correct insertion position where the shaft part of the pin is inserted into the pin mounting opening of the socket body By allowing the rotation of the pin only with, it can be expected that the connection between the pin and the terminal can be ensured and the pin can be prevented from falling off the socket body.

It is sectional drawing of the socket for pins which shows 1st Embodiment. It is sectional drawing of the lamp pin mounting state of the socket for pins same as the above. It is a perspective view of a part of the socket for pins and the straight tube lamp. It is a perspective view of the decomposition | disassembly state of the socket for pins same as the above. It is a front view of the socket for electric power feeding same as the above. It is a perspective view of a straight tube | pipe type lamp same as the above. It is a side view of the illuminating device using the socket for pins same as the above, and the socket for electric power feeding. It is a perspective view of an illuminating device same as the above. It is sectional drawing of the socket for pins which shows 2nd Embodiment. It is a perspective view of the terminal of the socket for pins which shows a 3rd embodiment. It is sectional drawing of the socket for pins same as the above. The socket for pins which shows 4th Embodiment is shown, (a) is sectional drawing of the state which inserted the pin, (b) is sectional drawing of the state which rotated the pin to the attachment position.

  Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 8.

  As shown in FIG. 8, the illuminating device 11 includes a luminaire 12 that is an embedded luminaire of the type for two straight tube fluorescent lamps, and two straight tube lamps 13 used in the luminaire 12. I have.

  The luminaire 12 is an elongated lower fixture body 15 that is embedded in the ceiling surface, and is opposed to both ends of the fixture body 15 in the longitudinal direction. Two sets of sockets 16 and 17 (socket 16 is shown in FIG. 7), and a lighting device 18 which is disposed on the instrument body 15 and is a dedicated power source for lighting the straight tube lamp 13. The socket 16 on one end side where the one end side of the straight tube lamp 13 is mounted is for pins, and the socket 17 on the other end side where the other end side of the straight tube lamp 13 is mounted is for power feeding.

  As shown in FIG. 6, the straight tube lamp 13 includes a translucent cover 21 having a tube length and a tube diameter similar to those of a straight tube fluorescent lamp and formed in substantially the same appearance as the 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. A base 23 on one end side of the straight tube lamp 13 is for a pin attached to a socket 16 for pins, and a base 24 on the other end side of the straight tube lamp 13 is for power supply attached to a socket 17 for power supply. It is.

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. In the case of an LED element, the semiconductor light emitting element 25 is an SMD (Surface with a connection terminal on which an LED chip is mounted.
Mount Device) package is used. In this SMD package, for example, an LED chip that emits blue light is arranged in the package, and this LED chip is mixed with a yellow phosphor that emits yellow light by being excited by a part of the blue light from the LED chip. Sealed with a phosphor layer such as silicone resin. Therefore, the surface of the phosphor layer becomes a light emitting surface, and white light is emitted from this light emitting surface.

  As shown in FIG. 3, one (one) pin 28 projects from the end surface of the pin base 23 from the center of the tube axis of the end surface. The pin 28 has a cylindrical shaft portion 29 protruding from the base 23 and an elliptical (oval-shaped) connection portion 30 provided at the tip of the shaft portion 29. Both ends in the longitudinal direction of the connecting portion 30 are formed in arcuate surfaces. As shown in FIG. 1, when the diameter of the shaft portion 29 is a, the dimension in the short direction of the connecting portion 30 is b, and the length in the longitudinal direction of the connecting portion 30 is c, the dimensional relationship of a <b <c. It is in. As a specific example of the dimension of the connection part 30, the dimension b in the short direction of the connection part 30 is 4 mm, and the dimension c in the longitudinal direction of the connection part 30 is 8 mm.

  As shown in FIGS. 6 and 7, a pair of power supply lamp pins 31 protrude from the end face of the power supply base 24.

  In the straight tube lamp 13, the longitudinal direction of the connecting portion 30 of the pin 28 is aligned with the direction in which the pair of lamp pins 31 are aligned, 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, it 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 tube lamp 13 is correctly mounted between the sockets 16 and 17.

  As shown in FIG. 7, the sockets 16, 17 are inserted into the sockets 16, 17 by inserting pins 28 and lamp pins 31 and rotated by, for example, 90 ° about the tube axis of the straight tube lamp 13. A rotational mounting type that is mounted at the mounting position is used.

  Next, FIGS. 1 to 4 show a pin socket 16. The socket 16 includes a socket body 41 and a pair of terminals 42 disposed in the socket body 41. 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, the surface facing the end surface of the straight tube lamp 13 is the front surface, the opposite side is the back surface, and the front surface. The space between the back surface is called the outer surface.

  The socket body 41 is made of an insulating synthetic resin, and includes a case 45 having a back surface opened and a cover 46 attached to the back surface of the case 45.

  A mounting portion 47 that is attached to the instrument main body 15 is provided at the base end of the case 45, a substantially circular pin mounting opening 48 is formed on the front surface of the case 45, and the front surface from the front end surface that is the front end of the outer surface of the case 45 An insertion groove 49 communicating with the pin mounting opening 48 is formed.

  A regulation wall 50 constituting both side walls of the insertion groove 49 is formed from both side edges of the insertion groove 49 on the distal end surface of the case 45 toward the inside of the case 45. The facing distance d between the regulation walls 50 on both sides is formed to be larger than the dimension b in the short direction of the connecting portion 30 of the pin 28 and smaller than the dimension c in the longitudinal direction of the connecting portion 30. Further, in the case 45, wall portions 51 are formed on the outer sides of the regulating walls 50 on both sides.

  The space between the insertion groove 49 on the front surface of the case 45 and the pin mounting opening 48 is narrower than the diameter of the shaft portion 29 of the pin 28, and the pin 28 between the insertion groove 49 and the pin mounting opening 48 is A narrow portion 52 that provides resistance to movement of the shaft portion 29 is provided. The narrow portion 52 is formed in a mountain shape protruding into the insertion groove 49, and a slit 53 is formed on the front surface of the case 45 outside the narrow portion 52. When the shaft portion 29 of the pin 28 passes through the narrow portion 52, the narrow portion 52 is elastically deformed to the outside of the insertion groove 49, and the shaft portion 29 of the pin 28 passes through the narrow portion 52. Allow.

  In the case 45, a pair of terminal holding portions 54 for holding the proximal end sides of the pair of terminals 42 are formed, and a terminal holding portion 55 for holding the distal end sides of the pair of terminals 42 is formed. The terminal holding part 55 includes a restriction wall 50 and a wall part 51. A wire insertion hole 56 communicating with each terminal holding portion 54 is formed at the base end of the case 45.

  The front surface of the cover 46 is formed with a plurality of locking portions 57 that are locked to the case 45 in a state where the back surface of the case 45 is closed, and a plurality of holding protrusions that position and hold the terminals 42 with the case 45. A portion 58 is projected.

  Further, the terminal 42 is formed of a conductive leaf spring, and is disposed in the line connecting portion 61 disposed in the terminal holding portion 54 on the proximal end side of the case 45 and in the terminal holding portion 55 on the distal end side of the case 45. A distal end portion 62 to be connected, and a terminal piece portion 63 connected to the pin 28 between the line connecting portion 61 and the distal end portion 62 are formed. The pair of terminals 42 are arranged in the case 45 so that the terminal piece 63 extends along both sides of the insertion groove 49 in the case 45.

  The line connecting portion 61 has an insertion hole 64 through which a line inserted from the line insertion hole 56 is inserted, and a locking piece 65 that is electrically connected to the line inserted through the insertion hole 64 and prevents the line from coming off. have.

  The distal end portion 62 is bent in a substantially L shape from the distal end of the terminal piece portion 63 facing the insertion groove 49 on the distal end surface of the socket body 41 toward the outer side of the insertion groove 49.

  The terminal piece 63 is formed with a pin holding portion 66 whose surface facing the insertion groove 49 is recessed. The pin holding portion 66 is formed in a recess having a substantially V-shaped cross section composed of a pair of inclined surfaces 67, and as shown in FIG. 2, the peripheral surface of the connecting portion 30 of the pin 28 rotated to a predetermined mounting position. The two points of the pair of inclined surfaces 67 are configured to contact each other.

  The terminal piece portion 63 is formed with a restricting piece portion 68 that is bent from the distal end side of the pin holding portion 66 toward the outer side opposite to the insertion groove 49. This restricting piece 68 abuts against the wall 51 of the case 45 and restricts the terminal piece 63 from being elastically deformed outside the insertion groove 49.

  As shown in FIG. 1, in the terminal piece portion 63 of the pair of terminals 42, the facing interval e at the distal end side of the terminal piece portion 63 and closer to the inlet side of the insertion groove 49 than the pin holding portion 66 is The dimension is set to be smaller than the dimension b in the short direction of the 28 connecting portions 30. The terminal piece 63 of the pair of terminals 42 is elastically deformed to the outside of the insertion groove 49, thereby allowing the connection portion 30 of the pin 28 to pass.

  Then, the regulation wall 50 located on both sides of the insertion groove 49 of the case 45 and the tip side of the pair of terminals 42 allow the pin 28 with the shaft portion 29 inserted into the pin mounting opening 48 to rotate, and the pin mounting opening A rotation restricting portion 71 that restricts the rotation of the pin 28 in a state of being positioned in the insertion groove 49 before the shaft portion 29 is inserted into the shaft 48 is configured.

  As shown in FIG. 5, the power supply socket 17 includes a socket body 74, a rotor 75 that is rotatably disposed in the socket body 74, and a pair of power supply terminals 76 that are disposed in the socket body 74. It has.

  The socket body 74 is formed with a circular opening 74a in which the rotor 75 is rotatably arranged on the front surface, and an insertion groove 74b through which the pair of lamp pins 31 are inserted from the front end surface to the front opening 74a. Is formed. The rotor 75 is also formed with an insertion groove 75a into which the pair of lamp pins 31 are inserted.

  Then, the pair of lamp pins 31 of the straight tube lamp 13 are inserted into the insertion groove 74b and the insertion groove 75a of the rotor 75 from the front end surface of the socket body 74, and the straight tube lamp 13 is rotated by 90 ° about its tube axis. By doing so, the pair of lamp pins 31 come into contact with the pair of power supply terminals 76 in the middle of the rotation, and the pair of power supply terminals 76 are elastically deformed outward and mounted at a predetermined mounting position.

  Further, the lighting device 18 shown in FIG. 8 receives a commercial AC power supply, converts AC power into DC power, and converts the DC power into a pair of power supply terminals 76 of a power supply socket 17 and a pair of straight tube lamps 13. Is supplied to the light source unit 22 through the lamp pin 31.

  Next, when the straight tube lamp 13 is connected in the lighting device 11 configured as described above, the pin 28 and the lamp pin 31 of the straight tube lamp 13 are connected to the sockets 16 and 17 as shown in FIG. The straight tube lamp 13 is inserted between the front end surfaces, the straight tube lamp 13 is arranged between the sockets 16 and 17, and the straight tube lamp 13 is rotated by 90 ° about the tube axis of the straight tube lamp 13, so that the straight tube lamp 13 is inserted into the socket 16, Wear between 17.

  As shown in FIG. 1, the pin 28 of the straight tube lamp 13 is inserted into the insertion groove 49 with the longitudinal direction of the connecting portion 30 directed toward the insertion groove 49 on the distal end surface of the case 45.

  When the connecting portion 30 of the pin 28 is inserted into the insertion groove 49 from the distal end surface of the case 45, first, at the inlet portion of the insertion groove 49, the connecting portion 30 contacts the pair of terminals 42 and the connection is established. Made immediately. At this time, in the power supply socket 17, the lamp pin 31 does not come into contact with the power supply terminal 76 simply by inserting the power supply lamp pin 31 of the straight tube lamp 13 into the power supply socket 17.

  When the connecting portion 30 of the pin 28 is further inserted into the insertion groove 49, the connecting portion 30 of the pin 28 is interposed between the pair of terminals 42 while elastically deforming the pair of terminals 42 outward at the connecting portion 30 of the pin 28. It will be inserted.

  When the connecting portion 30 of the pin 28 is further inserted into the insertion groove 49, the shaft portion 29 of the pin 28 comes into contact with the pair of narrow portions 52 of the case 45, and resistance is applied to the insertion of the pin 28. When the pin 28 is further inserted against this resistance, the shaft 29 of the pin 28 elastically deforms the pair of narrow portions 52 of the case 45 outward while the shaft 29 of the pin 28 The pair of narrow portions 52 are passed over and fitted into the pin mounting opening 48 of the case 45. When the shaft portion 29 of the pin 28 fits into the pin mounting opening 48 of the case 45, the insertion of the pin 28 is restricted and the insertion position is positioned, and a pair of pins 28 on the opposite side to the insertion direction of the shaft portion 29 of the pin 28 is positioned. The narrow portion 52 contacts the shaft portion 29, and the shaft portion 29 of the pin 28 is held in a state of being fitted into the pin mounting opening 48 of the case 45. Therefore, the operator can easily grasp that the pin 28 of the straight tube lamp 13 has been inserted to the predetermined insertion position of the socket 16, and the pin 28 of the straight tube lamp 13 is displaced from the predetermined insertion position of the socket 16. Can be prevented.

  When the pin 28 of the straight tube lamp 13 is inserted to a predetermined insertion position of the socket 16, the pin 28 is disposed between the pin holding portions 66 of the pair of terminals 42 as shown by a two-dot chain line in FIG.

  On the other hand, as shown in FIG. 5, the pin 28 of the straight tube lamp 13 is inserted into the socket 16 on the pin side, and at the same time, the pair of lamp pins 31 of the straight tube lamp 13 are inserted into the socket 17 on the power supply side. The pair of lamp pins 31 is disposed on the rotor 75 but is not yet connected to the pair of power supply terminals 76.

  Then, it is rotated by 90 ° about the tube axis of the straight tube lamp 13 to the mounting position so that the light emission direction of the straight tube lamp 13 is directed to a predetermined irradiation direction.

  When the straight tube lamp 13 is rotated, the connecting portion 30 of the pin 28 is rotated while elastically deforming the terminals 42 on both sides outward at both longitudinal ends of the connecting portion 30 of the pin 28. As shown in FIG. 2, when the pin 28 rotates 90 °, both ends in the longitudinal direction of the connecting portion 30 are fitted into the pin holding portions 66 of the terminals 42 on both sides and stopped.

  In a state where both ends in the longitudinal direction of the connecting portion 30 are fitted into the pin holding portions 66 of the terminals 42 on both sides, the inclined surfaces 67 of the pin holding portions 66 of the terminals 42 on both sides are in contact with the connecting portions 30, respectively. The pin 28 is held in a state where the terminals 42 on both sides are in contact with each other at four points. At this time, the restricting piece 68 provided on the tip end side of the pin holding portion 66 abuts against the wall portion 51 of the case 45 and restricts the terminal 42 on both sides from moving outward. The pin is prevented from being detached from the pin holding portion 66, and the pin 28 is reliably prevented from falling off the socket 16.

  On the other hand, in FIG. 5, when the straight tube lamp 13 is rotated, the pair of lamp pins 31 are rotated together with the rotor 75 to contact the pair of power supply terminals 76, and the pair of lamp pins 31 are rotated at 90 °. Is held in 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 power supply terminals 76 of the socket 17 for power supply and the pair of lamp pins 31 of the straight tube lamp 13, and the light source unit 22 Each of the semiconductor light emitting elements 25 is turned on, and light from each of the semiconductor light emitting elements 25 passes through the translucent cover 21 and is irradiated in a predetermined irradiation direction below the lighting fixture 12.

  When the straight tube lamp 13 is removed, the straight tube lamp 13 is rotated by 90 ° from the mounting position to the insertion position. As a result, in the pin socket 16, the longitudinal direction of the connecting portion 30 of the pin 28 is oriented in the insertion direction with respect to the socket 17, and the pin 28 can be removed from the insertion groove 49 of the socket 17. On the other hand, in the power supply socket 17, the direction in which the pair of lamp pins 31 are aligned is directed to the insertion direction with respect to the socket 16, and the pair of lamp pins 31 can be removed from the insertion groove 74b of the socket 17.

  When the straight tube lamp 13 is removed, when the straight tube lamp 13 is rotated by 90 ° from the mounting position to the insertion position, the pair of lamp pins 31 is supplied with a pair of power supplies while the contact between the pin 28 and the terminal 42 is maintained. When the contact with the terminal 76 is released and then the straight tube lamp 13 is removed from the sockets 16 and 17, the contact between the pin 28 and the terminal 42 is released.

  As described above, when the straight tube lamp 13 is attached or detached, the pair of lamp pins 31 and the pair of power supply terminals 76 can be brought into contact with and released from contact with each other in a connected state.

  According to the pin socket 16, the rotation restricting portion 71 restricts the rotation of the pin 28 in a state where the shaft portion 29 is positioned in the front insertion groove 49 where the shaft portion 29 is inserted into the pin mounting opening 48 of the socket body 41. Therefore, it is possible to prevent the pin 28 from being inserted when the shaft portion 29 of the pin 28 is not securely inserted into the pin mounting opening 48 of the socket body 41 or is inserted obliquely, and the socket body By allowing the pin 28 to rotate only at the correct insertion position where the shaft portion 29 of the pin 28 is inserted into the 41 pin mounting opening 48, the connection between the pin 28 and the terminal 42 can be ensured, and the pin 28 is a socket. It is possible to prevent the main body 41 from falling off.

  Further, the gap between the insertion groove 49 on the front surface of the socket body 41 and the pin mounting opening 48 is narrower than the diameter of the shaft portion 29 of the pin 28, and the pin between the insertion groove 49 and the pin mounting opening 48 Since the narrow portion 52 that provides resistance to the movement of the shaft portion 29 of 28 is provided, when the pin 28 is inserted into the socket 16, it is indicated to the operator that the pin 28 has been inserted to the predetermined insertion position of the socket 16. On the other hand, the pin 28 can be positioned and held at a predetermined insertion position, and the pin 28 can be prevented from being displaced or removed from the predetermined insertion position of the socket 16.

  Next, a second embodiment will be described with reference to FIG. In addition, about the same structure as the said embodiment, the description is abbreviate | omitted using the same code | symbol.

  Dowel-shaped protrusions 81 protrude from both end positions of the pin holding portion 66 of the terminal 42 at both the distal end side and proximal end side positions corresponding to the rotation direction of the connection portion 30 of the pin 28.

  When the connecting portion 30 of the pin 28 inserted between the pin holding portions 66 of the pair of terminals 42 is rotated, both end portions in the longitudinal direction of the connecting portion 30 of the pin 28 are connected to each one protruding portion 81 of each terminal 42. Since both ends in the longitudinal direction of the connecting portion 30 are fitted into the pin holding portions 66 of the respective terminals 42 by abutting and overcoming each one of the protrusions 81, moderation is given to the rotational position of the pin 28, and the pin 28 It is possible to make it easier for the operator to grasp that the camera has been rotated to a predetermined mounting position. In addition, each of the other protrusions 81 of each terminal 42 is prevented from coming off from the pin holding part 66 of each terminal 42 because both ends in the longitudinal direction of the connection part 30 that have passed over each one protrusion 81 rotate too much. Can be prevented.

  Next, a third embodiment will be described with reference to FIGS. 10 and 11. In addition, about the same structure as the said embodiment, the description is abbreviate | omitted using the same code | symbol.

  The pin holding portion 66 of the terminal piece portion 63 of the pair of terminals 42 is provided with a pin fitting opening 84 into which the connecting portion 30 of the pin 28 rotating to the mounting position is fitted. And the pin holding of the pair of terminals 42 When rotating the connecting part 30 of the pin 28 inserted between the parts 66, both ends in the longitudinal direction of the connecting part 30 of the pin 28 are fitted into the pin fitting openings 84, so that the moderation of the rotational position of the pin 28 is reduced. The operator can easily grasp that the pin 28 has been rotated to the predetermined mounting position. In addition, when both end portions in the longitudinal direction of the connecting portion 30 are fitted in the pin fitting openings 84, the edge portions on the distal end side and the proximal end side of the pin fitting openings 84 of the terminals 42 on both sides are connected to the connecting portion 30. Since the pins 28 are held in contact with each other and the terminals 42 on both sides are in contact with each other at four points, the pins 28 can be securely held by the four-point support by the terminals 42 on both sides. Prevents the socket 16 from falling off.

  Next, a fourth embodiment will be described with reference to FIG. In addition, about the same structure as the said embodiment, the description is abbreviate | omitted using the same code | symbol.

  The pair of terminals 42 are arranged on both sides of the insertion groove 49 in the case 45 at positions where the connection portions 30 of the pins 28 inserted into the insertion groove 49 do not contact. That is, the pair of terminals 42 does not come into contact only by inserting the pin 28 into the insertion groove 49 of the socket main body 41, and the pin 28 is rotated after being inserted into a predetermined insertion position of the socket main body 41, so that the pin 28 Configured to come into contact.

  The pin holding portions 66 of the pair of terminals 42 are disposed at positions facing both sides of the connection portion 30 of the pin 28 inserted at a predetermined insertion position of the socket body 41.

  When the straight tube lamp 13 is mounted, the connecting portion 30 of the pin 28 is connected to the pair of terminals 42 in a state where the pin 28 is inserted into a predetermined insertion position of the socket body 41 as shown in FIG. There is no contact. On the other hand, as shown in FIG. 5, in a state where the pair of power supply lamp pins 31 is inserted into the socket 17, the pair of lamp pins 31 is not in contact with the pair of power supply terminals 76.

  By rotating the straight tube lamp 13, as shown in FIG. 12B, the connection portion 30 of the pin 28 contacts the pair of terminals 42, while the pair of lamp pins 31 contacts the pair of power supply terminals 76. To do. At this time, the rotation angle θ1 required for the connection portion 30 of the pin 28 to contact the pair of terminals 42 is smaller than the rotation angle θ2 required for the pair of lamp pins 31 to contact the pair of power supply terminals 76, θ1 <Θ2 relationship.

  Therefore, when the straight tube lamp 13 is rotated, the pin 28 and the terminal 42 are first contacted to be connected, and then the pair of lamp pins 31 are contacted to the pair of power supply terminals 76 to enable power supply.

  When the straight tube lamp 13 mounted between the sockets 16 and 17 is rotated to remove it, the pair of lamp pins 31 is first released from contact with the pair of power supply terminals 76, and then the pin 28 and Contact with the terminal 42 is released.

  As described above, when the straight tube lamp 13 is attached or detached, the pair of lamp pins 31 and the pair of power supply terminals 76 can be brought into contact with and released from contact with each other in a connected state.

  Also in the fourth embodiment, as in the first embodiment, the pin socket 16 includes the rotation restricting portion 71, and the shaft portion 29 of the pin 28 is securely inserted into the pin mounting opening 48 of the socket body 41. It is possible to prevent the pin 28 from being mounted when not inserted or obliquely inserted, and at the correct insertion position where the shaft portion 29 of the pin 28 is inserted into the pin mounting opening 48 of the socket body 41. By allowing only the rotation of the pin 28, the connection between the pin 28 and the terminal 42 can be ensured, and the pin 28 can be prevented from falling off the socket body 41. Further, the configuration of the terminal 42 of the second and third embodiments can be applied.

Further, the rotation restricting portion 71 may be constituted by only the socket body 41, may be constituted by only the terminal 42, or may be constituted by both of them.
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.

11 ... lighting device, 13 ... straight tube lamp, 16 ... socket for pin, 17 ... socket for power supply, 28 ... pin, 29 ... shaft, 30 ... connector, 41 ... socket body, 42 ... terminal, 48 ... Pin mounting opening, 49 ... Insertion groove, 52 ... Narrow part, 63 ... Terminal piece part, 66 ... Pin holding part, 71 ... Rotation restricting part, 81 ... Projection part, 84 ... Pin fitting opening

Claims (5)

Front with pin mounting opening is provided with insertion groove to extend from the distal end surface intersecting the front surface pin mounting opening of the front provided, the shaft portion of Lupi emissions projecting from one end of the straight tube lamp and together with the connection portion of the elliptical cross-sectional shape of the tip of the shaft portion is inserted into the insertion groove of the front end surface, the shaft portion of the pin is inserted into the insertion groove or Rapi down mounting opening of the front, the pin mounting opening a socket body inserted pins are mounted is rotated at the predetermined mounting position around the tube axis of the straight tube lamp;
To permit rotation of the pin shaft portion is inserted into the pin mounting opening of the socket body, the rotation of the pin in a state located in the insertion groove of the front shaft portion is inserted into the pin mounting opening of the socket body A rotation restricting part for restricting
A pin connection unit of Lupi down to rotate the mounting position is Ru is connected;
A socket characterized by comprising: Between the insertion groove and the pin mounting opening of the front surface of the socket body, a narrow gap than the diameter of the shaft portion of the pin, the movement of the shaft portion of the pin between the insertion groove and the pin mounting opening The socket according to claim 1, further comprising a narrow portion that provides resistance to the socket. Pin is opposed to the peripheral surface of the connection portion of the pin, Lupi down holding portion to the contact fits the connections Lupi down to rotate the mounting position, and the rotational direction of the connection portion of the pin claim 1 or 2 socket, wherein it has a projection provided at both end positions of the pin holding portions corresponding to. Pin has a pair of terminal piece portion facing the peripheral surface of the connection portion of the pin, the pair of terminal pieces, write Mupi down connections Lupi down to rotate the mounting position is fitted The socket according to claim 1, wherein a fitting opening is provided. One shaft unit and Lupi down to having a connection portion of the elliptical cross-sectional shape of the tip of the shaft portion is protruded, the straight tube lamp which lamp pin is protruded for feeding the other end;
It claims 1 pin of the straight tube lamp is mounted and the socket for the pin 4 any one described;
A power supply socket into which a lamp pin for power supply of a straight tube lamp is inserted;
An illumination device comprising:

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