JP2008204745A - Lamp socket device, and luminaire equipped with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lamp socket device to which a lamp can be attached and detached without rotating the lamp, and in which the connected state of an electric wire inserted in an electric wire insertion hole and a terminal part can be easily released. <P>SOLUTION: This lamp socket device 1 is equipped with a support 10 having an open part 39 and a guide slit 35 which is in communication with the open part 39 and in which a lamp pin passing through the open part 39 is inserted, and a socket body 9 rotatably supported by the support 10 between a free position where movement of the lamp pin is not regulated in the guide slit 35 and a restricted position where a contact is brought into contact with the lamp pin to regulate movement of the lamp pin in the guide slit 35. A release hole 11a used for releasing connection of the terminal part and the wire 14 is provided in the vicinity of the electric wire insertion hole 17 of the socket body 9 so that it is positioned on the communicating part 10a side of the open part 39 and the guide slit 35 of the support 10 with respect to the center of rotation of the socket body 9, with the socket boy 9 at the free position. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lamp socket device used for attaching a lamp to a fixture body of a lighting fixture and a lighting fixture including the same.

  2. Description of the Related Art Conventionally, a lamp (for example, a straight tube fluorescent lamp) having a power supply lamp pin that protrudes in pairs in the longitudinal direction of a bulb from an end face of a base fixed to each end of a bulb is used as a fixture for a lighting fixture. There are many lamp socket devices that can be attached to the main body.

  As a lamp socket device of this type, a contact that is electrically connected by contact with a lamp pin and a rotor that is rotatably supported with respect to the socket case are provided in a socket case fixed to the fixture body. There is something to prepare. In the socket case, a case-side slit through which a pair of lamp pins passes is formed on the outer peripheral surface adjacent to the face facing the base, and a pair of faces introduced from the case-side slit on the face facing the base in the rotor. A rotor side slit into which the lamp pin is inserted is formed. Here, in a state where the rotor side slit communicates with the case side slit, the contacts are arranged on both sides in the width direction of the rotor side slit.

  In this lamp socket device, a pair of lamp pins are inserted into the rotor side slit in a state where the rotor side slit is communicated with the case side slit, and the lamp is rotated about the central axis of the base along the protruding direction of the lamp pin. As a result, each lamp pin comes into contact with each contact and is prevented from coming off from the rotor side slit, and the mounting of the lamp is completed. Further, the lamp can be attached and detached by rotating the lamp in the opposite direction to that at the time of mounting and removing the lamp pin from the rotor side slit through the case side slit.

  By the way, in the above-mentioned lamp socket device, a space for gripping and rotating the lamp when attaching and detaching the lamp is required around the lamp. Such structural members are often arranged close to the lamp, and there is a case where a sufficient space around the lamp is not secured and it is difficult to hold and rotate the lamp.

  On the other hand, a lamp socket device that can rotate the lamp without gripping the lamp has been proposed (see, for example, Patent Document 1).

As shown in FIG. 9, the lamp socket device 1 described in Patent Document 1 is integrally coupled to the rotor 47 and has an operation arm 47 a that protrudes from the outer peripheral surface of the socket case 48. With this configuration, by operating the operating arm 47a and rotating the rotor 47, the lamp rotates together with the rotor-side slit 49 of the rotor 47, and the lamp can be attached and detached.
Japanese Patent Laying-Open No. 2005-294239 (see paragraph numbers [0016] to [0018] and FIGS. 3 and 4 of the specification)

  By the way, in the various lamp socket devices described above, since the lamp is rotated around the central axis of the base when the lamp is attached and detached, the central axes of both bases are on the same straight line as in a straight tube fluorescent lamp. This is a prerequisite. That is, a lamp in which the central axes of both caps are not on the same straight line cannot be mounted because the lamp cannot be rotated.

  The present invention has been made in view of the above-described points. The purpose of the present invention is to allow the lamp to be attached and detached without rotating the lamp, and to release the connection state between the electric wire inserted into the electric wire insertion hole and the terminal portion. An object of the present invention is to provide a lamp socket device that can be easily performed and a lighting fixture including the same.

  In order to solve the above-described problems, the invention of claim 1 is a lamp socket device for attaching a lamp having a pair of power supply pin pins protruding in one direction from a base to a fixed position with respect to a fixture body of a lighting fixture. A socket body having a pair of contacts electrically connected to each of the pair of lamp pins, and the socket body with respect to the instrument body in a plane perpendicular to the protruding direction of the lamp pins in a state where the lamp is positioned at the fixed position. And a support portion that is rotatably supported. The support portion is formed on an outer peripheral surface adjacent to a surface facing the base, and is connected to the opening portion through which the pair of lamp pins pass and a surface facing the base. A guide slit extending in a straight line longer than the distance between the pair of lamp pins so that the pair of lamp pins introduced from the opening portion is inserted. The socket body is attached to the instrument body so that the communication part of the socket does not face the instrument body, and the socket body has a pair of contacts facing the longitudinal direction of the guide slit along the longitudinal direction of the guide slit in the plane. In a state where the movement of the pair of lamp pins in the direction is not restricted, and in a state where the pair of contacts face each other along the longitudinal direction of the guide slit and the pair of lamp pins are inserted into the guide slit and the lamp is positioned at the fixed position. A pair of contactors are respectively supported by a support portion so as to be able to rotate between a pair of contact pins and a restraining position for restricting movement of the pair of lamp pins in the longitudinal direction of the guide slit. A pair of electric wire insertion holes to be inserted into the body is provided along the protruding direction of the lamp pin, and each of the pair of contacts is provided in the socket body. A pair of terminal parts that are electrically connected and electrically connected to each of the electric wires inserted from the pair of electric wire insertion holes are housed, and the terminal part is a connection piece electrically connected to the contact, and A locking piece for holding the electric wire inserted from the electric wire insertion hole between the connection pieces and preventing the electric wire from being pulled out by being inserted into the electric wire, and in the vicinity of the electric wire insertion hole in the socket body, The release portion used for releasing the retainer is positioned on the communication portion side of the support portion with respect to the rotation center of the socket body in a state where the socket body is located at either the free position or the restraining position. It is provided in.

  According to the first aspect of the present invention, when the socket body is in the free position, the lamp intersects with the longitudinal direction of the guide slit in a plane perpendicular to the protruding direction of the lamp pin in a state where the lamp is positioned at a fixed position with respect to the fixture body. The pair of contactors face each other along the guide slit and do not restrict the movement of the pair of lamp pins in the longitudinal direction of the guide slit. In the state where the socket body is located at the restraining position, the pair of contacts face each other along the longitudinal direction of the guide slit, so that each of the pair of lamp pins of the lamp located at the fixed position is provided. Since the pair of contacts come into contact with each other to restrict the movement of the pair of lamp pins in the longitudinal direction of the guide slit, The lamp can be attached and detached by rotating the socket body between the free position and the restraint position. As a result, it is not necessary to rotate the lamp itself when attaching or detaching the lamp. Even lamps that are not on the same straight line can be installed. In addition, since the socket body only needs to be rotated when the lamp is attached or detached, the area in which the socket body moves when the lamp is attached or detached becomes relatively small, and a large space is not secured in the area where the socket body passes around the socket body. Therefore, the fixture body of the lighting fixture can be downsized.

  In addition, the support part is attached to the instrument body so that the communicating part of the opening part and the guide slit does not face the instrument body, and the release of the electric wire by the locking piece of the terminal part is released, that is, inserted from the electric wire insertion hole. The release part used for releasing the connection state between the connected electric wire and the terminal part is the communication part side of the support part with respect to the rotation center of the socket body with the socket body positioned at either the free position or the restraint position. If the release part is positioned on the communication part side of the support part with respect to the rotation center of the socket body, when the connection state is released using the release part, the instrument body Therefore, the connection state can be easily released. In addition, since it is not necessary to remove the lamp socket device from the instrument body when the connection state is released and the electric wire is pulled out from the wire insertion hole, the inverter provided in the instrument body can be removed without removing the support portion from the instrument body. It is possible to replace the socket body.

  According to a second aspect of the present invention, in the first aspect of the present invention, the support portion is attached to a fixture main body corresponding to a lamp having a pair of bases whose central axes along the protruding direction of the lamp pins are not located on the same straight line. The release portion is provided so as to be located on the communication portion side of the support portion with respect to the rotation center of the socket body in a state where the socket body is located at the free position, and the socket body is moved from the free position to the restraining position. It is characterized by being rotatably supported by the support portion so that the rotation direction when rotating is the direction in which the release portion is moved to the center side of the instrument body.

  According to the invention of claim 2, since the electric wire inserted into the electric wire insertion hole is not located outside the fixture body, the area occupied by the lamp socket device and the lamp in the fixture body can be reduced, and the lighting fixture can be downsized. .

  The invention according to claim 3 is characterized in that the lamp socket device according to claim 1 or 2 is provided in an instrument body.

  According to the invention of claim 3, since the lamp can be attached to and detached from the instrument body without rotating the lamp, it is possible to attach a lamp whose central axis is not on the same straight line. The connection state between the electric wire inserted into the terminal and the terminal portion can be easily released.

  The present invention has an effect that the lamp can be attached and detached without rotating the lamp, and the connection state between the electric wire inserted into the electric wire insertion hole and the terminal portion can be easily released.

  As shown in FIG. 4, a lamp socket device 1 according to an embodiment of the present invention is a power supply unit that protrudes in pairs in the longitudinal direction of the bulb 2 from the end face of a base 3 fixed to each end of the bulb 2. The lamp 5 having the lamp pin 4 (see FIG. 8A) is attached to a fixed position with respect to the fixture body 7 of the lighting fixture 6.

  In this embodiment, as shown in FIG. 4, an example in which the lamp socket device 1 of the present invention is applied to a lighting fixture 6 corresponding to a straight tube lamp 5 (here, a straight tube fluorescent lamp) is shown. The lighting fixture 6 includes a rectangular plate-like fixture body 7, and the lamp socket device 1 is disposed at each end in the longitudinal direction on one surface side of the fixture body 7.

  As shown in FIGS. 1, 3, 5, and 6, the lamp socket device 1 is electrically connected to a pair of lamp pins 4 protruding from the caps 3 of the lamp 5. The socket main body 9 having the child 8 and the projection direction of the lamp pin 4 in the state where the lamp 5 is located at the fixed position (the front-rear direction of the socket main body 9, the direction along the axial direction of the lamp 5 in FIG. 4). And a support portion 10 that rotatably supports the socket body 9 with respect to the instrument body 7 within a surface (hereinafter referred to as a “rotation surface”). In the following description, the vertical direction in FIG. 5 will be described as the vertical direction for the sake of simplicity, but this direction does not define the mounting direction of the lamp socket device 1. Further, the lamp socket device 1 including the socket body 9 and the support portion 10 in this way may be simply called a lamp socket.

  The socket body 9 is configured such that a bottomed cylindrical inner body 11 having an open front surface, a pair of conductive plates 12 accommodated in the inner body 11, and a pair of conductive plates 12 are accommodated between the inner bodies 11. And an inner cover 13 attached to the front side of the inner body 11. The inner body 11 and the inner cover 13 are both synthetic resin molded products made of an insulating resin material.

  The pair of conductive plates 12 are formed in a symmetrical shape, and are formed by bending, for example, a plate made of a metal material having elasticity, and the contactor 8 and the electric wire 14 for supplying power to the lamp 5. Are electrically connected to each other, and a terminal portion 15 that mechanically holds the electric wire 14 and a connecting piece 16 that connects the contactor 8 and the terminal portion 15 continuously and integrally.

  Here, a pair of electric wire insertion holes 17 for inserting the electric wires 14 into the socket main body 9 are formed at portions corresponding to the terminal portions 15 of the pair of conductive plates 12 on the rear wall of the inner body 11. The core wire 14 a of the electric wire 14 can be connected to the terminal portion 15 by being inserted along the protruding direction and inserting the electric wire 14 into the socket body 9 from the electric wire insertion hole 17.

  The terminal portion 15 is continuous with the connecting piece 16 (that is, electrically connected to the contact 8) and is disposed along the insertion direction of the electric wire 14, and is opposite to the connecting piece 16 in the connecting piece 15a. A standing piece 15b having a core wire insertion hole 15d that is erected so as to be orthogonal to the insertion direction of the electric wire 14, and an electric wire insertion hole that extends from the tip edge of the standing piece 15b toward the connection piece 15a. 17 and a locking piece 15c that holds the electric wire 14 inserted from the core wire insertion hole 15d between the connection piece 15a and bites into the electric wire 14 to prevent it from coming off. That is, the terminal portion 15 in the present embodiment holds the core wire 14a of the electric wire 14 that has passed through the core wire insertion hole 15d provided in the standing piece 15b between the distal end edge of the locking piece 15c and the connection piece 15a. This is a so-called quick connection terminal that simultaneously performs mechanical holding and electrical connection of the electric wire 14.

  The connecting piece 16 is formed in a U-shape projecting downward, and is positioned with respect to the inner body 11 by being inserted into a conductive plate fixing portion 18 provided at a lower portion of the inner peripheral surface of the inner body 11. A contact 8 is extended upward from the connecting piece 16.

  The contact 8 is folded back in the direction in which the upper ends thereof are separated from each other to form a hooking portion 8a. The hooking portion 8a is hooked on a part of an inner cover 13 to be described later, and is positioned in the socket body 9. In addition, a pin holding portion 8 b that protrudes away from each other is formed at a substantially central portion in the longitudinal direction of the contact 8.

  The pair of conductive plates 12 configured as described above are attached to the inner body 11 with the contacts 8 facing each other. At this time, the distance between the pin holding portions 8b of the contact 8 is such that each lamp pin 4 comes into contact with each of the pin holding portions 8b when the pair of lamp pins 4 are arranged between the pin holding portions 8b. Is set.

  With this configuration, each lamp pin 4 is electrically connected to each contact 8 by inserting the pair of lamp pins 4 between the pair of contacts 8 and sandwiching them between the pin holding portions 8b.

  The inner body 11 includes a cylindrical thick tube portion 19 that houses the contact 8 and the connecting piece 16, and a cylindrical thin tube portion 20 that houses the terminal portion 15. It is connected in the front-rear direction so that 20 is the rear and the center axes of the two are aligned. The diameter (inner diameter) of the thick tube portion 19 is set larger than that of the thin tube portion 20. An inlet 22 that communicates with a pin insertion hole 21, which will be described later, formed in the inner cover 13 is formed in the upper portion of the thick cylinder portion 19 so as to be opened forward. Further, the inner body 11 has an operation lever 23 that protrudes in the radial direction of the thick tube portion 19 from the side of the introduction port 22 on the outer peripheral surface of the thick tube portion 19.

  The inner cover 13 has a configuration in which a substantially circular pin insertion hole 21 is provided through a central portion of the front wall, and an inner peripheral wall 24 is provided rearward from the peripheral portion of the front wall. The front wall of the inner cover 13 is provided with a notch 25 that opens the pin insertion hole 21 upward, and the pin insertion hole 21 communicates with the introduction port 22 through the notch 25. The diameter of the pin insertion hole 21 is set to be larger than the interval between the pair of lamp pins 4 protruding from the base 3, and the inner cover 13 is placed with respect to the base 3 with the pair of lamp pins 4 inserted into the pin insertion hole 21. It is relatively rotatable. The inner cover 13 is combined with the inner body 11 in such a manner that the inner peripheral wall 24 is inserted into the thick cylindrical portion 19 of the inner body 11, and the engaging claws 26 projecting from the inner peripheral surface of the thick cylindrical portion 19 are connected to the inner cover 13. The inner body 11 is coupled by engaging with an edge of an engagement hole 27 penetrating the peripheral wall 24. In a state where the inner body 11 and the inner cover 13 are coupled, the inner cover 13 prevents the conductive plate 12 from coming off from the inner body 11. Further, an opening 28 communicating with the notch 25 is formed in the upper portion of the inner peripheral wall 24, and the hooking portion 8 a of the contact 8 described above is hooked on the periphery of the opening 28.

  On the other hand, the support portion 10 includes a bottomed cylindrical outer body 29 having an open front surface, and an outer cover 30 that is attached to the front surface side of the outer body 29 so that the socket body 9 is housed between the outer body 29 and the outer body 29. And have. Both the outer body 29 and the outer cover 30 are synthetic resin molded products made of an insulating resin material. Further, the outer body 29 is made of a resin material having good sliding properties with respect to the resin material used for the inner body 11.

  The outer body 29 includes a cylindrical sliding portion 31 that accommodates the thick cylindrical portion 19 of the socket body 9 and a cylindrical insertion portion 32 that accommodates the thin cylindrical portion 20. It is connected in the front-rear direction so that the center axes of 32 are aligned with each other. The sliding portion 31 is set to have a larger diameter (inner diameter) than the insertion portion 32. The inner diameter of the sliding portion 31 is set to be equal to the outer diameter of the thick cylindrical portion 19 of the socket body 9, so that when the socket body 9 is attached to the outer body 29, the inner body 11 of the socket body 9 is The central axis (the central axis of the thick cylindrical portion 19 and the thin cylindrical portion 20) matches the central axis of the outer body 29 (the central axis of the sliding portion 31). The inner diameter of the exposure hole 33 penetrating the rear wall of the insertion portion 32 is set to be equal to the outer diameter of the thin cylindrical portion 20 of the socket body 9. Therefore, the socket body 9 is fitted to the outer body 29 in such a manner that the outer peripheral surface of the thick cylindrical portion 19 abuts on the inner peripheral surface of the sliding portion 31 and the rear portion of the thin cylindrical portion 20 protrudes rearward through the exposure hole 33. Therefore, it is supported by the outer body 29 so as to be rotatable with the front-rear direction as the rotation axis direction. That is, the socket body 9 is pivotally supported by the outer body 29.

  By the way, the sliding portion 31 has an operation window 34 through which the operation lever 23 is inserted. The operation window 34 is formed in such a size that the operation lever 23 can be moved in the circumferential direction of the sliding portion 31. The outer peripheral surface of the insertion portion 32 forms a tapered surface that decreases the outer diameter toward the rear.

  The outer cover 30 extends in the vertical direction and has a guide slit 35 that is open upward and formed on the front wall. An outer peripheral wall 36 is erected on the rear side from the periphery of the front wall. The guide slit 35 is set so that the dimension in the width direction (left-right direction in FIG. 3A) is slightly larger than the diameter of each lamp pin 4 so that the pair of lamp pins 4 is inserted, and the longitudinal direction (FIG. 3A ) In the vertical direction) is set larger than the distance between the pair of lamp pins 4. The outer cover 30 is combined with the outer body 29 so that the sliding portion 31 of the outer body 29 is surrounded by the outer peripheral wall 36, and an assembly claw 37 protruding from the outer peripheral surface of the outer body 29 is provided in the outer peripheral wall 36. The outer body 29 is coupled by engaging with the edge of the assembly hole 38. The outer peripheral wall 36 has an open portion 39 that opens to a portion corresponding to the operation window 34 of the outer body 29 in a state where the outer body 29 and the outer cover 30 are coupled, and the open portion 39 is formed in the guide slit 35. Communicate. In addition, the dimension of the opening part 39 in the circumferential direction of the outer peripheral wall 36 is set larger than the operation window 34 of the outer body 29 described above.

  Furthermore, a shaft projection 40 that protrudes rearward is provided at a substantially central portion on the rear surface of the front wall of the outer cover 30 so that the center line coincides with the center axis of the outer body 29. In a state where the socket main body 9 is accommodated between the outer body 29 and the outer cover 30, the shaft protrusion 40 is inserted into the socket main body 9 through the pin insertion hole 21 of the socket main body 9 and is held between the pair of contacts 8. Is done. By the way, the shaft protrusion 40 is formed with a relief recess 40 a for avoiding interference with the lamp pin 4 passing through the guide slit 35. The dimension in the width direction of the relief 40 a is set to the same size as the dimension in the width direction of the guide slit 35, and the depth dimension is set to be larger than the projecting dimension of the lamp pin 4 from the base 3. Therefore, when the lamp pin 4 is moved in the guide slit 35, the lamp pin 4 passes through the escape recess 40a, so that the shaft protrusion 40 does not interfere with the movement of the lamp pin 4.

  The lamp socket device 1 of the present embodiment is configured by housing a socket body 9 in a support portion 10. By the way, the lamp socket device 1 is provided with a fixing portion 41 that is used when the lamp socket device 1 is fixed to the instrument body 7. The fixing portion 41 is connected to the socket body 9 with the rotation center of the socket body 9 interposed therebetween so that the opening portion 39 and the communication portion 10a of the guide slit 35 do not face the device body 7 and the support portion 10 is attached to the device body 7. It is provided in the lower part of the outer peripheral surface of the support part 10 so as to oppose 10a. Therefore, the lamp socket device 1 is fixed to the instrument main body 7 so that the communication part 10a does not face the instrument main body 7 by fixing the fixing portion 41 to the instrument main body 7 by a method such as screwing.

  In the lighting fixture 6 shown in FIG. 4, the pair of lamp socket devices 1 are fixed to the fixture body 7 in such a manner that the front surfaces of the support portions 10 in which the guide slits 35 are formed face each other. On the other hand, as shown in FIG. 2, the lamp 5 is configured such that each end face of each base 3 faces the front surface of the support portion 10 of each lamp socket device 1 (the pair of lamp pins 2 of each base 3 is connected to the support portion 10. Are inserted into the guide slit 35) and are attached to the instrument body 7 while being positioned between the pair of lamp socket devices 1. That is, this position is a fixed position (attachment position) with respect to the fixture body 7 of the lamp 5, and in a state where the lamp 5 is positioned at the fixed position, the front surface of the support portion 10 (the front surface of the outer cover 30) is the base of the lamp 5. 3 and the protruding direction of the lamp pin 4 is a direction along the front-rear direction of the lamp socket device 1.

  Next, operation | movement of the lamp socket apparatus 1 of this embodiment is demonstrated.

  With the above-described configuration, the socket body 9 is supported by the support portion 10 so as to be rotatable with the front-rear direction as the rotation axis direction. That is, the socket body 9 is rotatably supported by the support portion 10 in the rotation plane. Here, the rotation range of the socket body 9 is regulated by the size of the operation window 34 provided in the outer body 29 of the support portion 10. That is, since the operation lever 23 provided in the socket body 9 is inserted through the operation window 34, the opening range of the operation window 34 in the support portion 10 abuts the operation lever 23 to restrict the movement range of the operation lever 23. It functions as a restricting means, and the rotation range of the socket body 9 is determined by the size of the operation window 34 in the rotation direction of the socket body 9.

  Here, as shown in FIG. 3A, the rotation range of the socket body 9 is such that the inlet 22 faces upward (hereinafter referred to as “free position”), and the socket body 9 is moved from the free position to the position shown in FIG. The operation window 34 is formed so as to be regulated between the position shown in FIG. 3B (hereinafter referred to as “restraint position”) rotated 90 degrees clockwise. 3A and 3B, the movement range of the operation lever 23, that is, the rotation range of the socket body 9 is indicated by θ1.

  When the socket body 9 is in the free position of FIG. 3A, the guide slit 35 of the support portion 10 and the introduction port 22 of the socket body 9 overlap in the front-rear direction, and the pin insertion hole 21 of the socket body 9 Is open upward. Further, as shown in FIG. 7A, the pair of contacts 8 are opposed to each other along the width direction of the guide slit 35 (the direction intersecting the longitudinal direction of the guide slit 35 in the rotation surface). ing.

  Therefore, in a state where the socket main body 9 is located at the free position, the movement of the pair of lamp pins 4 in the longitudinal direction of the guide slit 35 is not restricted, so that the pair of lamp pins 4 can be freely moved along the longitudinal direction of the guide slit 35. The lamp pin 4 can be inserted into and removed from the pin insertion hole 21 through the opening 39 and the introduction port 22. That is, the lamp 5 can be freely attached and detached. Since the dimension in the width direction of the guide slit 35 is set to be slightly larger than the diameter of the lamp pin 4, the pair of lamp pins 4 inserted into the pin insertion hole 21 are aligned in the longitudinal direction of the guide slit 35. Become.

  As described above, when the pair of lamp pins 4 is inserted into the pin insertion hole 21 as described above, the pair of lamp pins 4 is disposed between the pair of contacts 8 in the socket body 9 as described above. Since the pair of contacts 8 face each other along the width direction of the guide slit 35, the lamp pins 4 and the contacts 8 are not in contact with each other and are not electrically connected.

  On the other hand, in the state where the socket body 9 is in the restrained position, as shown in FIG. 7A, the pair of contacts 8 facing each other in the direction along the width direction of the guide slit 35 causes the rotation of the socket body 9. Accordingly, as shown in FIG. 5 (b), it rotates in the direction of arrow A (clockwise direction), and as shown in FIG. 7 (c), it faces in the direction along the longitudinal direction of the guide slit 35. Become.

  Therefore, when the socket body 9 is positioned at the restraining position with the pair of lamp pins 4 inserted into the guide slit 35 and the lamp 5 positioned at the fixed position, as shown in FIG. The pair of contacts 8 come into contact with the pair of lamp pins 4 to restrict the movement of the pair of lamp pins 4 in the longitudinal direction of the guide slit 35, and freely move the pair of lamp pins 4 along the longitudinal direction of the guide slit 35. In other words, the lamp 5 cannot be moved from the fixed position (the lamp 5 cannot be removed from the lamp socket device 1). In this state, since the pair of contacts 8 are in contact with the pair of lamp pins 4, the pair of contacts 8 and the pair of lamp pins 4 are electrically connected to each other. At this time, the contact 8 is positioned at a position corresponding to the guide slit 35 such that the pair of pin holding portions 8b face each other, and the pair of lamp pins 4 are sandwiched between the pair of pin holding portions 8b. In addition, since the contact 8 is a part of the conductive plate 12 formed using a plate made of a metal material having elasticity, the contact pressure between the lamp pin 4 and the contact 8 is ensured.

  When the socket body 9 is rotated from the free position to the restraint position, the contact 8 is moved from a position not in contact with the lamp pin 4 to a position in contact with the lamp pin 4. A force that rotates together with the socket body 9 is applied by 8. However, in this embodiment, since the lamp pin 4 is inserted through the guide slit 35 of the support portion 10, the rotation of the lamp 5 is restricted by the lamp pin 4 coming into contact with the inner side surface of the guide slit 35 in the width direction, The lamp 5 is prevented from rotating with the socket body 9.

  In the state where the socket body 9 is located at the restraining position, the guide slit 35 of the support portion 10 and the introduction port 22 of the socket body 9 do not overlap in the front-rear direction as shown in FIG. The introduction port 22 communicated with the insertion hole 21 is closed by the support portion 10. Therefore, in this state, since the lamp pin 4 cannot be inserted into and removed from the pin insertion hole 21 through the opening 39 and the introduction port 22, the lamp 5 can be freely attached and detached when the socket body 9 is positioned at the restraining position. It can not be done.

  As described above, in the lamp socket device 1 of the present embodiment, in a state where the socket main body 9 is located at the free position, the pair of contacts 8 face each other along the width direction of the guide slit 35 in the rotation plane, and the guide slit Since the movement of the pair of lamp pins 4 in the longitudinal direction of 35 is not restricted, the pair of lamp pins 4 can be inserted into the guide slit 35 from the opening 39 and the lamp 5 can be positioned at a fixed position with respect to the instrument body 7. In the state where the socket main body 9 is located at the restraining position, the pair of contacts 8 face each other along the longitudinal direction of the guide slit 35 in the rotation surface, so that the pair of lamps 5 located at the predetermined positions are opposed to each other. Since the pair of contacts 8 come into contact with each of the lamp pins 4 to restrict the movement of the pair of lamp pins 4 in the longitudinal direction of the guide slit 35, the lamp 5 can be fixed at the fixed position.

  Therefore, according to the lamp socket device 1 of the present embodiment, the lamp 5 can be attached and detached by rotating the socket body 9 between the free position and the restraining position. As a result, when the lamp 5 is attached or detached, the lamp 5 The lamp 5 which does not need to rotate itself and whose central axis of the base 3 is not on the same straight line can be mounted.

  Further, even when a space for holding and rotating the lamp 5 is not secured around the lamp 5, the attaching / detaching operation of the lamp 5 can be easily performed. Furthermore, in the conventional configuration shown in FIG. 9 in which the lamp 5 is attached / detached by moving the lamp 5 itself, when the lamp 5 becomes large, it becomes difficult to handle the lamp 5 and the workability of attaching / detaching the lamp 5 is deteriorated. In the lamp socket device 1 of the present embodiment, the lamp 5 can be easily attached and detached simply by moving the socket body 9 regardless of the size of the lamp 5, and therefore the workability of attaching and detaching the lamp 5 is deteriorated. There is no.

  In addition, since the socket body 9 only needs to be rotated when the lamp 5 is attached / detached, the area in which the socket body 9 moves when the lamp 5 is attached / detached becomes relatively narrow, and the area through which the socket body 9 passes around the socket body 9. Since it is not necessary to secure a large space, the fixture body 7 of the lighting fixture 6 can be downsized.

  Furthermore, according to the lamp socket device 1 of the present embodiment, the socket body 9 can be rotated by the operation lever 23, so that the lamp 5 can be easily attached and detached. Further, since the side surface of the operation lever 23 (the right side surface in FIG. 3A) is continuous with the inner peripheral surface of the introduction port 22, when the lamp pin 4 is inserted into and removed from the pin insertion hole 21 through the introduction port 22, the lamp pin If 4 is moved along the side surface of the operation lever 23, the side surface of the operation lever 23 can be used as a guide when the lamp pin 4 is inserted and removed, so that the lamp 5 can be attached and detached more easily.

  By the way, in the vicinity of the wire insertion hole 17 in the socket body 9 of the lamp socket device 1 of the present embodiment, as shown in FIGS. 1A and 1B, the wire 14 by the locking piece 15c of the terminal portion 15 is provided. A release portion including a release hole 11a used for releasing the retaining is provided. The release hole 11a is provided so as to correspond to the core wire insertion hole 15d of the standing piece 15b, and is formed to have a size capable of inserting the tip of a jig 50 such as a minus driver. Therefore, in order to unlock the connection state between the electric wire 14 inserted into the electric wire insertion hole 17 and the terminal portion 15, as shown in FIG. 2A, the locking piece 15c is passed through the release hole 11a and the core wire insertion hole 15d. The tip of the jig 50 is brought into contact with this, and the jig 50 is moved in the direction indicated by the arrow D in FIG. The locking piece 15c is bent to release the locked state of the electric wire 14 by the locking piece 15c (that is, the state where the locking piece 15c bites into the electric wire 14), and then the electric wire 14 Is moved in the direction indicated by the arrow E and pulled out from the wire insertion hole 17.

  Thus, in this embodiment, since the terminal part 15 which consists of a quick connection terminal is employ | adopted, the cancellation | release of the connection state of the electric wire 14 and the terminal part 15 can be performed comparatively easily. In order to perform such work, a certain amount of space is required. If sufficient space cannot be secured, the jig 50 cannot be inserted into the release hole 11a well, and the release work becomes difficult.

  Therefore, in the lamp socket device 1 according to the present embodiment, as shown in FIG. 5, the standing piece 15 b of the support portion 10 with respect to the rotation center of the socket body 9 with the socket body 9 positioned at a free position. The conductive plate 12 is accommodated in the socket body 9 so as to be located on the communication part 10a side (that is, the upper side of the socket body 9), and accordingly, the release hole 11a is shown in FIG. As described above, the socket body 9 is provided on the inner body 11 so as to be positioned on the communication portion 10a side of the support portion 10 with respect to the rotation center of the socket body 9 in a state where the socket body 9 is located at a free position. .

  Thus, in this embodiment, the support part 10 is attached to the instrument main body 7 so that the communication part 10a of the opening part 39 and the guide slit 35 does not oppose the instrument main body 7, and is based on the locking piece 15c of the terminal part 15. The release hole 11a, which serves as a release portion used to release the wire 14 and prevent the connection between the wire 14 inserted from the wire insertion hole 17 and the terminal portion 15, positions the socket body 9 in a free position. In this state, the socket body 9 is provided so as to be positioned on the side of the communication portion 10a of the support portion 10 with respect to the rotation center of the socket body 9, so that the socket body 9 is in a free position (the release hole 11a is located with respect to the rotation center of the socket body 9). If it is positioned on the communication part 10a side of the support part 10), the instrument body 7 does not get in the way when the release state is released using the release hole 11a. It can be performed to. Moreover, since it is not necessary to remove the lamp socket device 1 from the instrument main body 7 when the connection state is released and the electric wire 14 is pulled out from the electric wire insertion hole 17, the instrument 10 can be used without removing the support portion 10 from the instrument main body 7. An inverter (not shown) provided in the main body 7 and the socket main body 9 can be replaced.

  In the present embodiment, the release hole 11a is located on the side of the communication portion 10a of the support portion 10 with respect to the rotation center of the socket body 9 in a state where the socket body 9 is located at a free position. However, the release hole 11a is positioned on the side of the communication portion 10a of the support portion 10 with respect to the rotation center of the socket body 9 in a state where the socket body 9 is positioned at the restraining position instead of the free position. May be. In this embodiment, the release portion is formed by the release hole 11a provided in the socket body 9. However, a release button (not shown) capable of pressing the locking piece 15c is provided in the socket body 9, and this release is performed. You may make it comprise a cancellation | release part with a button.

  By the way, in this embodiment, the protrusions 42 are provided on both sides of the shaft protrusion 40 on the back surface of the front wall of the outer cover 30, and the recesses 43 into which the protrusions 42 are fitted are provided in portions corresponding to the protrusions 42 in the socket body 9. Yes. The concave portion 43 has a total of four locations, two locations facing each projection 42 when the socket body 9 is in a free position and two locations facing each projection 42 when the socket body 9 is in a restrained position. It is formed. Here, the front wall of the outer cover 30 has a flexible portion 44 that bends so as to move the protrusion 42 in the front-rear direction. Therefore, when the socket body 9 in the free position or the restraint position is rotated, the flexible portion 44 is bent and the protrusion 42 is retracted from the recess 43, and when the socket body 9 is rotated to the restraint position or the restraint position, the protrusion 42. Fits into the recess 43, and a click feeling is obtained when the socket body 9 rotates. Here, since the notch 25 formed in the inner cover 13 is also used as one recess 43, the recess 43 is actually formed in three places.

  Further, the electric wire insertion hole 17 provided in the rear wall of the socket main body 9 is provided so as to penetrate along the rotation axis direction of the socket main body 9 (that is, the protruding direction of the lamp pin 4), and the electric wire 14 drawn out from the electric wire insertion hole 17 is It is pulled out along the rotation axis of the socket body 9. Therefore, even if the socket body 9 is rotated as shown by the arrow A between the free position shown in FIG. 1A and the restraint position shown in FIG. The passing area C1 can be kept relatively narrow. That is, it is not necessary to secure an extra space around the electric wire 14 when rotating the socket body 9.

  Further, the lamp socket device 1 shown in FIG. 4 temporarily holds the lamp 5 with respect to the instrument body 7 even when the socket body 9 is in a free position and the socket body 9 does not hold the lamp 5. The temporary holding part 45 which can do is provided. The temporary holding portions 45 in FIG. 4 are respectively disposed on both sides of the bulb 2 in the central portion of the instrument body 7 in the longitudinal direction, and temporarily hold the lamp 5 so as to sandwich the longitudinal central portion of the bulb 2. . The temporary holding portion 45 is formed with a lamp holding portion 45a curved in a convex shape in a direction away from each other at the center portion, and the lamp 5 is temporarily held by sandwiching the lamp 5 between the both lamp holding portions 45a. The upper end portions of the pair of temporary holding portions 45 constitute push operation portions 45b that are inclined away from each other toward the upper side, so that the lamp 5 can be moved from the state in which the lamp 5 is sandwiched between the both lamp holding portions 45a. When detaching, the lamp 5 can be easily removed by pushing the push operation part 45b to widen the distance between the two lamp holding parts 45a. Although the lower end portion of the temporary holding portion 45 is fixed to the instrument body 7, the temporary holding portion 45 may be formed integrally with the support portion 10.

  By providing the temporary holding portion 45 as described above, the lamp 5 can be positioned at the fixed position of the fixture body 7 even when the socket body 9 of the lamp socket device 1 is in the free position when the lamp 5 is attached or detached. Can do. As a result, the operator does not need to position the lamp 5 by hand when operating the operation lever 23 to rotate the socket body 9, and the lamp 5 can be easily attached and detached. .

  In addition, since it is not necessary to position the lamp 5 by hand when operating the operation lever 23 to rotate the socket body 9, the operator can move the socket body 9 to a free position to move the lamp pin 4 to the free position. The lamp 5 can be attached to and detached from the temporary holding portion 45 after the connection with the contact 8 is released. Thereby, when attaching / detaching the lamp 5 to / from the temporary holding portion 45, the operator does not need to hold the lamp 5 in a state where the lamp pin 4 is connected to the contact 8. Even if the energization is not cut off, the lamp 5 can be safely attached and detached.

  By the way, if the lamp socket device 1 of the present embodiment is used, not only the lighting fixture 6 corresponding to the straight tube lamp 5 as described above, but also the base 3 along the protruding direction of the lamp pin 4 as shown in FIG. It is also possible to configure the lighting fixture 6 corresponding to the lamp 5 whose central axes are not on the same straight line.

  In the lamp 5 illustrated in FIG. 8, the protruding directions of the lamp pins 4 from the caps 3 are opposite to each other, and the pair of caps 3 are integrally coupled by a coupling piece 46. Although not shown here, the valve 2 is formed in a predetermined shape between the pair of caps 3. As an example of the valve 2, the two valves 2 whose one ends are connected in the vicinity of the middle portion of the both caps 3 are extended in a spiral shape centering on the connecting portion, and each end is connected to the cap 3. It can be of a fixed shape. The lighting fixture 6 corresponding to the lamp 5 includes a disk-shaped fixture body 7, and the lamp socket device 1 is disposed at a portion corresponding to each base 3 on one surface side of the fixture body 7.

  In this type of lamp 5, since the central axis of the base 3 is not collinear, the lamp 5 is attached to and detached from the lamp socket device 1 by rotating the lamp 5 around the central axis of the base 3 as in the conventional configuration. However, if the lamp socket device 1 of the present embodiment described above is used, the lamp 5 can be attached and detached. That is, as shown in FIG. 8A, with the socket body 9 in the free position, the lamp 5 is moved in the direction of arrow B, and the lamp pin 4 is passed through the opening 39 and the inlet 22 with respect to the pin insertion hole 21. Inserting and rotating and moving the socket body 9 to the restraining position as indicated by an arrow A in FIG. 8B completes the holding and electrical connection of the lamp 5 by the lamp socket device 1.

  As described above, if the lamp socket device 1 of the present embodiment is used, the lamp 5 can be attached and detached without moving the lamp 5 itself. Therefore, the lamp 5 whose center axis is not on the same straight line can be attached and detached. Is possible. Further, since the lamp 5 is not rotated, even when the central axis of the bulb 2 and the central axis of the base 3 are not on the same straight line as the lamp 5 in which the bulb 2 is formed in a spiral shape, It is not necessary to provide a space in a region through which the valve 2 passes when the valve 2 rotates, which leads to downsizing of the instrument body 7.

  Further, the socket body 9 in the lamp socket device 1 of the present embodiment corresponds to the lamp 5 having the pair of bases 3 in which the support portion 10 does not have the central axis along the protruding direction of the lamp pin 4 positioned on the same straight line. When attached to the instrument main body 7, the support portion 10 is rotatable so that the rotation direction when rotating from the free position to the restraint position is the direction in which the release hole 11 a is moved to the center side of the instrument main body 7. It is supported.

  Therefore, according to the lamp socket device 1 of the present embodiment, since the electric wire 14 inserted into the electric wire insertion hole 17 is not located outside the instrument main body 7, the area occupied by the lamp socket device 1 and the lamp 5 in the instrument main body 7. The lighting fixture 6 can be downsized.

  Further, in the lamp socket device 1 shown in FIG. 8, a temporary holding portion 45 is provided in the vicinity of each support portion 10, and the temporary holding portion 45 comes into contact with the base 3 of the lamp 5 to thereby connect the lamp 5. Therefore, even if the lamp 5 includes the glass bulb 2 that is difficult to secure high strength due to a narrow tube or a complicated shape, the lamp 5 is temporarily attached without applying a load to the bulb 2. Can be held.

  The configuration of the lamp socket device 1 described above is merely an example. For example, the function of preventing the conductive plate 12 from coming off from the inner body 11 is provided to the outer cover 30 and the inner cover 13 is omitted, or the outer cover 30 is removed. The lamp socket device 1 of the present invention can be realized in various configurations, such as being formed integrally with the fixture body 7, or the support portion 10 being constituted by two members that can be separated in the longitudinal direction of the guide slit 35.

  And according to the lighting fixture 6 which equips the fixture main body 7 with the lamp socket apparatus 1 of this embodiment described above, since the lamp | ramp 5 can be attached or detached with respect to the fixture main body 7, without moving the lamp | The lamp 5 whose center axis is not on the same straight line can be mounted, and the connection state between the electric wire 14 inserted into the electric wire insertion hole 17 and the terminal portion 15 can be easily released.

The lamp socket apparatus of Embodiment 1 is shown, (a) is the perspective view which looked at the state which has a socket main body in a free position from back, (b) is the perspective view which looked at the state in which a socket main body is in a restraint position from back. is there. It is explanatory drawing of the cancellation | release method of the connection state of the electric wire and terminal part in a lamp socket apparatus same as the above. The lamp socket device is shown, wherein (a) is a perspective view from the front when the socket body is in a free position, and (b) is a perspective view from the front when the socket body is in a restrained position. It is a perspective view which shows the lighting fixture provided with the lamp socket apparatus same as the above. It is a disassembled perspective view which shows a lamp socket apparatus same as the above. It is a disassembled perspective view which shows a lamp socket apparatus same as the above. The inside of the socket main body of a lamp socket apparatus same as the above is shown, (a) is a schematic explanatory drawing of the state in which a socket main body exists in a free position, (b) is the state in which a socket main body exists between a free position and a restraint position. (C) is a schematic explanatory drawing of the state which has a socket main body in a restraint position. The other example of the lighting fixture provided with a lamp socket apparatus same as the above is shown, (a) is a perspective view of the state which removed the lamp | ramp, (b) is a perspective view of the state which mounted | wore the lamp | ramp. It is a perspective view of the lamp socket apparatus of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lamp socket apparatus 3 Cap | bolt 4 Lamp pin 5 Lamp 6 Lighting fixture 7 Appliance main body 8 Contact 9 Socket main body 10 Support part 10a Communication part 11a Release hole 14 Electric wire 15 Terminal part 17 Electric wire insertion hole 35 Guide slit 39 Opening part

Claims (3)

A lamp socket device for attaching a lamp having a pair of lamp pins for power supply protruding in one direction from a base to a fixed position with respect to a fixture body of a lighting fixture,
A socket body having a pair of contacts electrically connected to each of the pair of lamp pins, and the socket body with respect to the instrument body in a plane perpendicular to the protruding direction of the lamp pins in a state where the lamp is located at the fixed position. And a support portion that supports rotatably,
The support portion is formed on the outer peripheral surface adjacent to the surface facing the base, and an open portion through which the pair of lamp pins passes, and a pair of lamp pins introduced from the open portion in communication with the open portion on the surface facing the base is inserted. The guide slit extended in a straight line longer than the interval between the pair of lamp pins, and attached to the instrument body so that the open part and the communicating part of the guide slit do not face the instrument body,
The socket body has a free position in which the pair of contacts face each other along the direction intersecting the longitudinal direction of the guide slit in the plane and does not restrict the movement of the pair of lamp pins in the longitudinal direction of the guide slit, and the longitudinal direction of the guide slit. When the pair of contactors face each other and the pair of lamp pins are inserted into the guide slit and the lamp is positioned at the fixed position, the pair of contactors respectively contact the pair of lamp pins and the pair of guide pins in the longitudinal direction of the guide slit. It is supported by the support portion so as to be freely rotatable between a restraint position that restricts the movement of the lamp pin of the lamp pin,
In the socket body, a pair of wire insertion holes for inserting an electric wire into the socket body are provided along the protruding direction of the lamp pin, and the socket body is electrically connected to each of the pair of contacts. A pair of terminal portions to which the respective electric wires inserted from the pair of electric wire insertion holes are electrically connected are housed, and the terminal portions are inserted from the connection pieces electrically connected to the contacts and the electric wire insertion holes. It is provided with a locking piece that holds the electric wire between the connection pieces and prevents the electric wire from being pulled out by biting into the electric wire, and is used in the vicinity of the electric wire insertion hole in the socket body to release the electric wire from being held by the locking piece. The release portion to be provided is provided so as to be positioned on the communication portion side of the support portion with respect to the rotation center of the socket body in a state where the socket body is located at either the free position or the restraining position. Lamp socket device and butterflies.   The support portion is attached to the fixture body corresponding to the lamp having a pair of bases whose central axes along the protruding direction of the lamp pin are not located on the same straight line, and the release portion has positioned the socket body in a free position. In the state, the socket body is provided so as to be positioned on the side of the communication part of the support part with respect to the rotation center of the socket body. 2. The lamp socket device according to claim 1, wherein the lamp socket device is rotatably supported by the support portion so as to be moved toward the center side.   A lighting fixture comprising the lamp socket device according to claim 1 or 2 in a fixture main body.

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