JP5572073B2 - Lamp socket and lighting device - Google Patents

Description

  The present invention relates to a lamp socket on which a straight tube lamp is mounted and an illumination device including the same.

  2. Description of the Related Art Conventionally, as a lighting device for home use or facilities, a lighting device including a lamp socket in which a straight tube lamp is mounted has been widely used. Some lamp sockets are used in lighting devices in which at least two straight tube lamps are arranged in a straight line.

  As this type of lamp socket, in order to connect the respective cap portions of the straight tube lamp facing each other, an opening provided on one surface side of the socket body and the other surface side opposite to the one surface; It is known that a pair of lamp pins provided in the opening and projecting from a base part of a straight tube lamp are respectively inserted and a rotor that rotates around the axial direction of the straight tube lamp (for example, Patent Document 1).

  The lamp socket includes contact pieces that are provided in pairs on the one surface side and the other surface side and that can contact each of the lamp pins inserted into the rotor. Therefore, the lamp socket has a pair of lamp pins at the mounting position where the straight tube lamp is mounted on the one surface side and the other surface side of the socket body by facing each other linearly and rotating around the axial direction. Each of the contact pieces comes into contact with the surface side and the other surface side.

  When two straight tube fluorescent lamps are arranged in a straight line, the lamp socket described above has a pair of lamp pins protruding from the base portion of the straight tube fluorescent lamp as a fluorescent lamp on the one surface side or the other surface side. Compared with a lighting device having two lamp sockets that can be inserted only into the lamp unit, the number of lamp sockets used is reduced, and non-light emission is caused by the thickness of the lamp socket in the axial direction of the straight tube lamp of the lighting device. The area can be reduced.

JP-A-2005-50729

  However, in the lamp socket disclosed in Patent Document 1 described above, a rotor that inserts two lamp pins protruding from each of the pair of base portions of the straight tube lamp and rotates the shaft tube around the axial direction of the straight tube lamp. Are provided on one surface side and the other surface side of the socket body. Therefore, the lamp socket is positioned on the one surface side and the other surface side where each contact piece is partitioned by a partition plate inside the lamp socket. For this reason, the lamp socket has a thickness of two lamp sockets in which lamp pins protruding from the base portion of the straight tube lamp are inserted only on one surface side in order to arrange the two straight tube lamps in a straight line. Compared to the adjacent one, the wall thickness of the socket body could only be reduced.

  Therefore, at the present time when a lamp socket that can be made thinner with a simple configuration is required, the above-described configuration of the lamp socket is not sufficient. In addition, at present when a lighting device having a simple configuration and a small non-light emitting area is required, the configuration of the lighting device including the lamp socket described above is not sufficient, and further improvement is required.

  In recent years, LED lamps using light-emitting diodes that have a longer life than fluorescent lamps and can reduce power consumption are becoming popular, and straight tube LEDs as an alternative light source for straight tube fluorescent lamps. A direct-tube LED lamp dedicated illumination device on which the lamp and the straight-tube LED lamp are mounted is being developed. The straight tube type LED lamp has a structure including two lamp pins projecting from a cap portion on one end side of the tube body and one lamp pin projecting from a cap portion on the other end side. A standard (JEL801: 2010) by the Society has also been established "Straight-tube LED lamp system with L-shaped base (for general lighting)".

  At present, lamp sockets to which straight tube LED lamps are mounted are also known as lamp sockets that can be made thinner with a simple structure by taking advantage of the shape and arrangement of the lamp pins of the straight tube lamps described above. It is not done. Further, in a lighting device in which two straight tube LED lamps are arranged in a straight line, a non-light-emitting region in the axial direction of the straight tube lamp, taking advantage of the shape and arrangement characteristics of the lamp pins of the straight tube lamp described above. Nothing is known that can make it smaller.

  The present invention has been made in view of the above-described reasons, and an object of the present invention is to provide a lamp socket that can be made thinner with a simple configuration and a lighting device with a smaller non-light emitting area.

  The lamp socket of the present invention is a straight tube type provided with two first lamp pins projecting from the first base part on one end side of the tube body and one second lamp pin projecting from the second base part on the other end side. An electrically insulating socket body on which a lamp can be mounted, and a conductive portion provided on the socket body and capable of individually electrically connecting the first lamp pin and the second lamp pin of the straight tube lamp. In the lamp socket, the socket main body is configured such that the first base part of the straight tube lamp can abut on one surface side, and the two first lamp pins protruding from the first base part are provided. The second base part of the other straight tube lamp can be brought into contact with the first receiving surface having a pair of first insertion ports to be inserted and the other surface side opposite to the one surface, And the above-mentioned protruding from the second base part A second receiving surface having a second insertion port for inserting the second lamp pins, and the conductive portion is electrically connected to the two first lamp pins. 1 conductive plate and a second conductive plate electrically connectable to the one second lamp pin, and the straight tube lamp is opposed to the one surface side and the other surface side, respectively. In the mounting position to be mounted linearly, the pair of first conductive plates each include a first contact piece that makes contact with the two first lamp pins, respectively, and the second conductive plate includes the first conductive plate. A second contact piece in contact with the second lamp pin, and a pair of the first conductive plate and the second conductive plate in a projection view on the first receiving surface of the pair of the first conductive plate and the second conductive plate. The second contact piece is positioned between the one contact pieces.

  In this lamp socket, it is preferable that the first conductive plate and the second conductive plate are arranged adjacent to each other along a plane parallel to the first receiving surface.

  In the lamp socket, the first insertion port and the second insertion port are openings of linear grooves provided from the outer peripheral surface side of the socket body toward the center side, and at the mounting position. Preferably, the first contact pieces and the two first lamp pins are in contact with each other, and the second contact pieces and the one second lamp pin are in contact with each other.

  In this lamp socket, the socket body protrudes in the normal direction of the first receiving surface from at least the first receiving surface side, and part of the outer periphery of the first cap portion of the straight tube lamp. It is preferable to have a holding part for mechanically holding.

  In this lamp socket, the socket body is provided with the linear groove portion on each of the first receiving surface and the second receiving surface along a direction perpendicular to a direction in which gravity of the straight tube lamp is applied. It is preferable.

  In the lamp socket, the socket main body includes a linear groove provided from the outer peripheral surface side of the socket main body toward the central portion, and the linear groove at an end of the linear groove on the central portion side. An arcuate groove that can continuously guide the first lamp pin in a rotational direction that rotates the straight tube lamp about an axial direction, and the first insertion port includes an opening of the linear groove and the arcuate groove It is preferable that at the mounting position, the two first lamp pins are mechanically held by the first contact piece disposed in the arc-shaped groove.

  In this lamp socket, the socket body is provided on the one surface side, protrudes in a direction perpendicular to the one surface and is movable to the inner side of the socket body, and is located inside the socket body and is located inside the socket body. A pressing member that presses the plunger from the inner side to the outer side of the socket body, the plunger including the first receiving surface, and the first receiving surface is the first receiving port. A pair of the first insertion ports into which the two first lamp pins are inserted in a direction perpendicular to the surface and the first lamp pins and the first conductive plate are electrically connected to each other; It is preferable that the first conductive plate and the second conductive plate are arranged adjacent to each other in the direction perpendicular to the movement direction of the plunger from the protruding position to the mounting position.

  In the lamp socket, the socket body is provided on the other surface side, protrudes in a direction perpendicular to the other surface, and is movable to the inner side of the socket body. A pressing member that presses the plunger from the inner side to the outer side of the socket body, and the plunger provided on the other surface side includes a second receiving surface, and the second receiving surface is And the second insertion port into which the one second lamp pin is inserted in a direction perpendicular to the second receiving surface to electrically connect the second lamp pin and the second conductive plate. The first conductive plate and the second conductive plate are adjacent to each other in the direction perpendicular to the movement direction of the plunger from the protruding position of the plunger provided on the other surface side to the mounting position. Together It is preferable that the disposed Te.

  The lighting device of the present invention is characterized in that a plurality of lighting fixtures including any of the above-described lamp sockets are arranged in a straight line.

  The lamp socket of the present invention has a remarkable effect that it is possible to provide a lamp socket that can be made thinner with a simple configuration.

  The illuminating device of the present invention has a remarkable effect that it can provide an illuminating device with a simple configuration and a smaller non-light emitting area.

The lamp socket of Embodiment 1 is shown, (a) is the external appearance perspective view of the one surface side of a socket main body, (b) is the external appearance perspective view of the other surface side of a socket main body. It is a top view which shows a lamp socket same as the above. The lamp socket same as the above is shown, (a) is an exploded perspective view seen from one surface side of the socket body, (b) is an exploded perspective view seen from the other surface side of the socket body. The straight tube lamp mounted on the lamp socket is shown in the same figure. (A) is a front view, (b) is a projection of the lamp pin of the second cap part, which is the cap on the other end, on the first cap part, which is the cap on the one end side. FIG. It is a front view which shows the other lamp socket same as the above. The typical explanatory view which attaches a straight tube form lamp to the illuminating device provided with the lamp socket same as the above is shown, (a) is one surface side of a socket body, and (b) is the other surface side of a socket body. An illuminating device provided with the lamp socket which attached the straight tube | pipe type lamp same as the above is shown, (a) is a side view, (b) is a top view. The lamp socket of Embodiment 2 is shown, (a) is typical sectional drawing, (b) is XX sectional drawing of (a). It is a schematic block diagram which shows the illuminating device of Embodiment 3.

(Embodiment 1)
The lamp socket of this embodiment is demonstrated based on FIG. 1 thru | or FIG. 3, and a straight tube | pipe type lamp is demonstrated based on FIG. In addition, in each figure, the same number is attached | subjected with respect to the same component, and the overlapping description is abbreviate | omitted.

  First, a straight tube lamp 20 composed of a straight tube LED lamp with an L-shaped base attached to the lamp socket 10 of the present embodiment will be described. The straight tube lamp 20 includes an arc tube 21 that is a tube main body formed of a translucent material (for example, glass or synthetic resin) into a cylindrical straight tube. A base is provided at each end of the arc tube 21 in the axial direction. The straight tube lamp 20 connected to the lamp socket 10 of the present embodiment is a bottomed cylindrical first power supply base that covers one end of the arc tube 21 as the base at one end. A portion 22 is provided. Further, the straight tube lamp 20 is provided with a bottomed cylindrical grounding second base portion 23 as a base at the other end so as to cover the other end portion side of the arc tube 21 in the axial direction. ing.

  Although not shown, a mounting substrate (for example, a ceramic substrate) having a slightly shorter overall length than the arc tube 21 is housed inside the arc tube 21. On one surface side of the mounting substrate, a mounting pattern is formed in which a plurality of light emitting diodes (not shown) capable of emitting white light are mounted and electrically connected at a predetermined interval. Further, on the other surface side of the mounting substrate, a reflecting plate made of an aluminum material having a C-shaped cross section in which a side wall portion protruding from a bottom surface portion in contact with the other surface side reflects light from the light emitting diode in a predetermined direction (see FIG. Not shown). The reflector also functions as a heat sink that releases the heat of the light emitting diode to the outside from the other surface side of the mounting substrate via the bottom surface portion.

  On the end face of the first base portion 22 of the straight tube lamp 20, concave portions 22b and 22b that are recessed in a substantially semicircular shape are provided on both sides of the central portion in the radial direction (see FIG. 4B). Is provided with a substantially rectangular parallelepiped protruding portion 22a protruding forward from the concave portion 22b. The projecting portion 22 a is formed in a plate shape with a metal material at a symmetrical position across the central axis (not shown) of the cylindrical arc tube 21, and projects along the axial direction of the straight tube lamp 20. Two first lamp pins 24, 24 as power supply lamp pins to be supplied are provided substantially in parallel. Each of the first lamp pins 24 includes a plate-like protrusion 24a that protrudes in parallel with the axial direction of the straight tube lamp 20, and a direction in which the tip of the plate-like protrusion 24a is bent at a substantially right angle toward the central axis. And a bent portion 24b protruding outward in the opposite direction.

  The two first lamp pins 24, 24 are electrically connected to the mounting substrate through lead wires (not shown) inside the arc tube 21, for example. Note that a circuit board (not shown) such as a full-wave rectifier for electrically protecting the light emitting diode is also mounted on the mounting substrate. That is, in the straight tube lamp 20, even when any of the first lamp pins 24, 24 is connected to the positive electrode side of the external DC power supply via the lamp socket 10, a forward current flows through each light emitting diode. The two first lamp pins 24, 24 and each light emitting diode are electrically connected through a full-wave rectifier. Accordingly, the two first lamp pins 24 and 24 function as terminals for supplying power to the light emitting diodes of the straight tube lamp 20.

In addition, although the light emitting diode accommodated in the straight tube lamp 20 is not illustrated, for example, when energized, an LED chip that emits blue light having a peak wavelength in the range of 420 nm to 490 nm; And a package body made of ceramic (for example, alumina or the like) provided on one surface with a storage recess for storing the LED chip. The storage recess absorbs part of the blue light emitted from the LED chip and emits a longer wavelength fluorescent light (for example, yellow light) (for example, Y ₃ Al ₅ O activated by Ce). ₁₂ , a translucent resin (for example, silicone resin, epoxy, etc.) containing aluminate-based phosphors such as Tb ₃ Al ₅ O ₁₂ activated by Ce or Ba ₂ SiO ₄ activated by Eu. A wavelength conversion member made of a resin, an acrylic resin, a polycarbonate resin, or the like. The light emitting diode is provided with an external connection electrode (not shown) on the other surface of the package body, and the external connection electrode and the mounting pattern of the mounting substrate are made of solder (not shown). Is not electrically connected through).

  The second base part 23 serving as a base on the other end side of the straight tube lamp 20 is one second lamp pin which is a grounding lamp pin protruding from the second base part 23 along the axial direction of the straight tube lamp 20. 25. The second lamp pin 25 includes a shaft portion 25 a that protrudes along the axial direction from the center portion of the end face of the second base portion 23 and is formed in a round bar shape from a metal material. A direction parallel to the direction in which the two first lamp pins 24, 24 projecting from the first base part 22 of the straight tube lamp 20 are arranged in the axial direction at the distal end of the shaft part 25a is defined as the longitudinal direction. The large-diameter portion 25b that is larger than the shaft diameter of the shaft portion 25 is formed (see FIG. 4B). The large diameter portion 25b is made of a metal material and formed integrally with the shaft portion 25a. That is, the second lamp pin 25 includes a round bar-shaped shaft portion 25a that protrudes in a direction parallel to the axial direction of the straight tube lamp 20, and a large-diameter portion 25b. The second lamp pin 25 is electrically connected to the mounting pattern of the mounting substrate and functions as a ground pin for grounding. That is, the straight tube lamp 20 is a one-side power feeding method in which power is fed from the first base portion 22 on one end side.

  In the lamp socket 10 of the present embodiment in which such a straight tube lamp 20 can be mounted, the straight tube lamp 20 is provided on the one surface 5a side of the socket body 5 as shown in FIGS. The first cap 22 includes a pair of first insertion ports 2a and 2a into which the first lamp pins 24 and 24 projecting from the first cap 22 can be inserted. The first receiving surface 1a is provided. Further, the lamp socket 10 can be brought into contact with the second base portion 23 of another straight tube lamp 20 on the other surface 5b side opposite to the one surface 5a, and is protruded from the second base portion 23. It has the 2nd receiving surface 1b provided with the 2nd insertion port 2b which inserts the 2nd lamp pin 25.

  The socket body 5 of the lamp socket 10 includes a body 6 having an opening 6f and a hollow inside, and a cover 7 provided so as to cover the opening 6f of the body 6 (see FIG. 3A). . On one surface 5 a side of the socket body 5, a conductive portion 3 that is housed in a cavity inside the body 6 and can be electrically connected individually to the two first lamp pins 24, 24 of the straight tube lamp 20 is configured. A pair of first conductive plates 3a and 3a, which are conductive plates for feeding power, are provided. Further, on the other surface 5 b side of the socket body 5, the socket body 5 is accommodated in one straight groove portion 5 d provided from the outer peripheral surface 6 a side of the body 6, which is a side surface of the socket body 5, toward the center portion side. There is provided a second conductive plate 3b which is a conductive plate for grounding which constitutes a conductive portion 3 which can be electrically connected to one second lamp pin 25 of the lamp 20 (see FIG. 3B).

  The body 6 is formed in a substantially rectangular parallelepiped shape from a synthetic resin, and the upper surface (upper side in FIG. 1) is a curved surface in which the central part in the left-right direction (left-right direction in FIG. 1) is convex upward compared to both sides It is in the shape. The cover 7 is made of synthetic resin, and is formed in a flat plate shape that covers the opening 6f of the body 6. That is, the socket body 5 is provided with electrical insulation by being formed using a synthetic resin. On one surface 5 a side of the socket body 5, two linear grooves 5 c and 5 c that are substantially parallel to the central portion side from the outer peripheral surface 6 a side that is the side surface of the socket body 5 are provided. The two linear grooves 5c and 5c function as first insertion ports 2a and 2a into which the first lamp pins 24 and 24 of the straight tube lamp 20 are inserted, respectively, in the openings of the linear grooves 5c and 5c. In addition, as shown in FIG. 2, the width | variety of each 1st insertion port 2a is inserted in the upper surface side of the body 6 so that the bending part 24b bent from the plate-shaped protrusion part 24a of the 1st lamp pin 24 can be inserted. The wide portion 2aa is made wider.

  The pair of first conductive plates 3a is formed by bending a plate-shaped body made of a metal material having good conductivity (for example, a copper alloy). The first conductive plate 3a is a central piece 3aa fixed to the inner bottom surface 6d side of the cavity of the body 6, and protrudes upward (upward in FIG. 3) from one side edge of the central piece 3aa. A holding piece 3ae which is held in contact with the inner stepped portion 6e projecting in the body 6 and held by the body 6, and a central piece which is longer than the holding piece 3ae at the other side edge of the central piece 3aa and substantially parallel to the holding piece 3ae. And an extending piece 3ab extending from 3aa. The extending piece 3ab includes a first contact piece 3ac that is in contact with the first lamp pin 24 of the straight tube lamp 20 at a distal end portion of the extending piece 3ab, and a side opposite to the holding piece 3ae side from the distal end portion of the first contact piece 3ac. And a guide piece 3ad that is bent outwardly. The first contact piece 3ac is bent into a substantially V shape, and the middle part in the vertical direction protrudes in the left-right direction from both side parts. The shape of the first contact piece 3ac is not limited to the V shape as long as it can contact the first lamp pin 24, and may be formed in various shapes such as a flat plate shape. The extending piece 3ab is formed wider than the first contact piece 3ac provided at the tip. The extension piece 3ab is arranged so that the bent portion 24b of the first lamp pin 24 is not inserted too much into the inside of the body 6 when the first lamp pin 24 is inserted into the linear groove portion 5c. A regulating end 3af that regulates the movement of the bent portion 24b is exposed at the tip.

  Further, the first conductive plate 3a is a cavity inside the body 6 with the guide piece 3ad on the upper side and the central piece 3aa on the lower side so that the first contact piece 3ac is disposed in the first insertion port 2a. It is stored inside. The first receiving surface 1a of the lamp socket 10 is in contact with the protruding portion 22a of the straight tube lamp 20, and is provided with a pair of parallel first insertion ports 2a, 2a of the socket body 5 and linear grooves 5c, 5c. The first conductive plates 3 a and 3 a hold the first lamp pin 24 of the straight tube lamp 20. Here, when the straight tube lamp 20 is mounted on the lamp socket 10, the plate-like protrusions 24a of the first lamp pins 24 are held in the first contact piece 3ac bent in a V shape of the first conductive plate 3a. Thus, the first lamp pin 24 is held on the lamp socket 10 side. The plate-like protrusion 24a of the first lamp pin 24 is held by the first contact piece 3ac of the first conductive plate 3a, so that the straight tube lamp 20 is difficult to be removed from the lamp socket 10. In addition, even when the straight tube lamp 20 is about to come out of the lamp socket 10, the electrical connection between the first lamp pin 24 and the first contact piece 3ac is stabilized, so that an arc generated due to a poor electrical connection. It becomes difficult for discharge to occur. The socket body 5 is provided with a plurality (four in this case) of through holes 4 penetrating into the body 6, and at least two of the through holes 4 are connected to a pair of first conductive members. It is an insertion hole for an electric wire (not shown) that can be electrically connected to the plate 3a side. In addition, the first conductive plate 3a may be configured to include a quick connection terminal so that the electric wire can be easily and electrically connected to the electric wire inserted into the through hole 4.

  The lamp socket 10 includes a linear groove 5 d provided on the outer side of the body 6 from the outer peripheral surface 6 a side of the body 6 toward the center side on the other surface 5 b side of the socket body 5. Inside the straight groove portion 5d, a second conductive plate 3b constituting the conductive portion 3 that can be electrically connected to the second lamp pin 25 of the straight tube lamp 20 is provided. The opening of the linear groove 5d on the outside of the body 6 becomes a second insertion port 2b into which the second lamp pin 25 of the straight tube lamp 20 is inserted.

  The second conductive plate 3b that can be electrically connected to one second lamp pin 25 is formed by bending a plate-like body made of a metal material (for example, copper alloy) having good conductivity. The second conductive plate 3b includes a central piece 3ba that is fixed to one end surface 6b of a linear groove 5d provided on the outer side of the body 6, and a pair of holding pieces that protrude upward from both side edges of the central piece 3ba. 3bb, 3bb, a second contact piece 3bc provided at the tip of each holding piece 3bb and contacting the second lamp pin 25 of the straight tube lamp 20, and bent outward from the tip of the second contact piece 3bc. And a guide piece 3bd. The second conductive plate 3b includes a conductive piece 3be extending from the central end of the central piece 3ba in the direction opposite to the extending direction of the holding piece 3bb. The pair of second contact pieces 3bc, 3bc are bent in a substantially V shape so as to face each other so as to sandwich the shaft portion 25a of the second lamp pin 25, and the middle portion in the vertical direction protrudes in the left-right direction from both side portions. ing. Note that the shape of the pair of second contact pieces 3ac, 3ac is not limited to a V shape as long as it can contact the second lamp pin 25, and may be formed in various shapes such as a flat plate shape. Further, the conductive piece 3be may be one in which a lead wire (not shown) is connected in advance to the end opposite to the central piece 3ba or a quick connection terminal (not shown). Good.

  The second conductive plate 3b has the guide piece 3bd on the upper side (upper side in FIG. 3) so that the pair of second contact pieces 3bc and 3bc are arranged on the left and right sides of the second insertion port 2b of the body 6, respectively. The central piece 3ba is placed on the lower side (downward in FIG. 3) and is housed in a linear groove 5d provided on the outer side of the body 6. On the second receiving surface 1 b of the lamp socket 10, the second conductive plate 3 b in the linear groove portion 5 d provided with the second insertion port 2 b of the body 6 is connected to the second cap portion 23 of the straight tube lamp 20. The 2nd lamp pin 25 protruded from is hold | maintained. Each of the second contact pieces 3bc is separated in the left-right direction at the second insertion port 2b as the second lamp pin 25 of the straight tube lamp 20 is inserted between the pair of second contact pieces 3bc, 3bc. A gap is provided between the linear groove portion 5d in the second insertion port 2b so that the second insertion port 2b can move in a moving direction.

  Note that a groove-like narrow portion 6c narrower than the width in the major axis direction of the large diameter portion 25b of the second lamp pin 25 is formed on the lower end side of the linear groove portion 5d constituting the second insertion port 2b in the socket body 5. I have. The narrow portion 6c accommodates the conductive piece 3be of the second conductive plate 3b. The second conductive plate 3b can function as the grounding ground terminal by electrically connecting the second conductive plate 3b to the second lamp pin 25 serving as a grounding ground pin.

  In the lamp socket 10 of the present embodiment, two first lamp pins 24 and 24 projecting from the first base part 22 on one end side of the arc tube 21 which is a tube main body, and the second base part 23 on the other end side. The lamp socket 10 is thinned with a simple configuration by taking advantage of the shape and arrangement characteristics of the lamp pins 24 and 25 of the straight tube lamp 20 having one lamp pin 25 protruding from the lamp. That is, the lamp socket 10 of the present embodiment has a pair of first lamps at the mounting positions where the straight tube lamps 20 are mounted in a straight line so as to face each other on the both surfaces of the one surface 5a and the other surface 5b of the socket body 5. One conductive plate 3a includes first contact pieces 3ac and 3ac that are in contact with the two first lamp pins 24 and 24, respectively. In the lamp socket 10, the second conductive plate 3b includes a pair of opposed second contact pieces 3bc and 3bc that come into contact with one second lamp pin 25. In particular, the lamp socket 10 includes a pair of first contact pieces in a projected view (not shown) of the pair of first conductive plates 3a, 3a and the second conductive plate 3b onto the first receiving surface 1a. The second contact piece 3bc is positioned between 3ac and 3ac. Thereby, the lamp socket 10 of this embodiment is compared with the case where two lamp sockets in which the first lamp pin 24 and the second lamp pin 25 of the straight tube lamp 20 are inserted only on the one surface 5a side are combined, The thickness of the socket body 5 can be reduced. Accordingly, the lamp socket 10 can halve the number of lamp sockets 10 incorporated into the lighting device 30 described later, for example, and can reduce the material used for the lamp socket 10.

  In the lamp socket 10, the socket body 5 electrically connects the pair of first conductive plates 3a and 3a for supplying power to the two first lamp pins 24 and 24 and the one second lamp pin 25. Since the two conductive plates 3b are arranged adjacent to each other along a plane parallel to the first receiving surface 1a, the thickness of the lamp socket 10 can be further reduced. That is, the lamp socket 10 has the function of two lamp sockets for inserting the first lamp pin 23 and the second lamp pin 25 of the straight tube lamp 20 only on the one surface 5a side. The thickness can be maintained without changing the thickness.

  Further, the configuration of the lamp socket 10 of the present embodiment is not limited to the above-described configuration. For example, as illustrated in FIG. 5A, the socket body 5 is the first from at least the first receiving surface 1 a side. And holding parts 8 and 8 that mechanically hold a part of the outer periphery of the first base part 22 of the straight tube lamp 20 protruding in the normal direction of the receiving face 1a (perpendicular to the paper surface of FIG. 5). It is good also as a structure. In the lamp socket 10 shown in FIG. 5A, along the outer peripheral edge of the cover 7, a pair of holding portions 8, 8 that are curved in an arc shape are provided so as to protrude from the first receiving surface 1a side. Here, the holding portions 8 and 8 are made of a resin material and have elasticity. Therefore, the first receiving surface 1a of the lamp socket 10 is an opening portion of two linear grooves 5c, 5c that are substantially parallel with the protruding portion 22a of the first base portion 22 of the straight tube lamp 20 being in contact with the first receiving surface 1a. When the two first lamp pins 24, 24 are inserted along one insertion slot 2 a, 2 a, the pair of holding parts 8, 8 become a pair of holding parts with the insertion of the first base part 22 of the lamp socket 10. It is deformed so that 8, 8 spreads away. Further, at the mounting position where the lamp socket 10 is mounted with the straight tube lamp 20 on the one surface 5a side of the socket body 5, the first conductive plates 3a, 3a and the first lamp pins 24, 24 are connected, and a pair of holdings are held. The interval between the portions 8 and 8 can be returned to the original state, and the first base portion 22 of the straight tube lamp 20 can be held.

  The interval between the two holding portions 8 and 8 is set to be slightly larger than the outer diameter of the first base portion 22. Further, the projecting dimension of the holding portions 8 and 8 (distance from the front surface side of the body 6 to be the first receiving surface 1a to the tip of the retaining unit 8) is the projecting dimension of the projecting portion 22a of the straight tube lamp 20 ( The distance is larger than the distance from the front surface of the recess 22b to the tip surface of the protrusion 22a. In FIG. 5A, the holding portions 8 are illustrated only on the one surface 5a side of the socket body 5 in the lamp socket 10, but at least one of the one surface 5a side and the other surface 5b side of the socket body 5 is illustrated. What is necessary is just to provide. As a result, the lamp socket 10 can more reliably hold the straight tube lamp 20 mechanically.

  The lamp socket 10 has two linear grooves substantially parallel to a direction parallel to the direction in which the gravity of the straight tube lamp 20 of the socket body 5 is applied (above the paper surface of FIG. 1 or the left side of the paper surface of FIG. 5). Instead of providing the first insertion ports 2a, 2a serving as openings of 5c, 5c, as shown in FIG. 5B, the socket body 5 is connected to the first receiving surface 1a on the straight tube lamp 20. Two linear groove portions 5c and 5c that are substantially parallel to the direction in which the gravity is applied may be provided along a direction perpendicular to the direction (up and down direction in FIG. 5). Thereby, the lamp socket 10 can hold | maintain the 1st lamp pins 24 and 24 of the straight tube | pipe type lamp 20 by linear groove part 5c, 5c itself.

  Although not shown in FIG. 5B, the straight groove portion 5d is formed on the second receiving surface 1b of the socket body 5 along the direction perpendicular to the direction in which the gravity of the straight tube lamp 20 is applied. It is more preferable to provide the provided configuration.

  Further, the lamp socket 10 is provided with the first insertion ports 2a and 2a formed by only the openings of the linear grooves 5c and 5c on the center side from the outer peripheral surface 6a of the socket body 5 described above, instead of providing the first insertion ports 2a and 2a shown in FIG. As shown in c), the socket body 5 includes two substantially parallel straight groove portions 5c, 5c provided from the outer peripheral surface 6a side of the socket body 5 toward the center portion side, and the straight groove portions 5c, 5c. Two substantially parallel two guides that can guide the first lamp pins 24 and 24 in a rotational direction that is continuous with the straight grooves 5c and 5c at the end on the center side of the shaft and rotates the straight tube lamp 20 around the axial direction. It is good also as a structure provided with the arc-shaped groove parts 5e and 5e. The first insertion openings 2a and 2a are openings of the linear grooves 5c and 5c and the arc-shaped grooves 5e and 5e, and the straight tube lamp 20 is opposed to the one surface 5a side and the other surface 5b side, respectively. Thus, the two first lamp pins 24, 24 are mechanically held by the first contact pieces 3ac, 3ac disposed in the arc-shaped grooves 5e, 5e, respectively, at the mounting position where they are mounted linearly.

  Although not shown, the second conductive plate 3b disposed in the linear groove 5d of the second insertion port 2b into which the second lamp pin 25 is inserted is connected to the second conductive plate 3b by the second lamp pin. The shaft portion 25a of the second lamp pin 25 is configured to be rotatable around the axial direction in a state where the 25 is in contact. Thereby, it becomes possible to set it as the lamp socket 10 which can perform attachment or detachment operation of the straight tube | pipe lamp 20 more reliably.

  The lamp socket 10 shown in FIG. 5C is parallel to the first receiving surface 1a, and the first lamp pins 24 and 24 of the straight tube lamp 20 are connected to the first insertion ports 2a and 2a of the lamp socket 10, respectively. If it inserts along 2a, it will be in the state where insertion of the 1st lamp pins 24 and 24 was controlled in the edge part by the side of the central part in socket main part 5 of linear groove parts 5c and 5c. In this state, the straight tube lamp 20 is rotated around the axial direction to a predetermined angle (for example, 30 degrees) so that the light emitting diode faces the irradiation surface side. As the straight tube lamp 20 rotates, the first lamp pins 24, 24 move along the arc-shaped grooves 5e, 5e, and the first contact piece 3ac of the first conductive plate 3a and the first lamp pin 24 are electrically connected. And the straight tube lamp 20 is mechanically held by the socket lamp 10. At this time, the two first lamp pins 24, 24 are electrically connected to the two first conductive plates 3a, 3a disposed inside the body 6, and are straight tube-shaped from the lamp socket 10 side. A direct current can be supplied to the light emitting diode of the lamp 20. In addition, the straight tube lamp 20 mounted on the lamp socket 10 is rotated in the axial direction so that the first lamp pins 24 and 24 are subjected to the gravity of the straight tube lamp 20 (on the left side of FIG. 5). )). The first contact pieces 3ac, 3ac in the arc-shaped grooves 5e, 5e and the first lamp pins 24, 24 are electrically connected, and the straight tube lamp 20 is mechanically held by the socket lamp 10. Therefore, the lamp socket 10 of FIG. 5 (c) has a straight tube lamp from the lamp socket 10 as compared with a straight tube lamp 20 in which only the straight groove portion 5c is provided in a direction parallel to the direction in which the gravity of the straight tube lamp 20 is applied. It becomes possible to suppress that 20 falls out more.

  That is, the lamp socket 10 of FIG. 5C rotates the straight tube lamp 20 around the axial direction in a state where the first base portion 22 of the straight tube lamp 20 is in contact with the first receiving surface 1a. Thus, when the lamp socket 10 is mounted, the shaft portion 25a of the single second lamp pin 25 is provided on the second base portion 23 side of the straight tube lamp 20 only by providing the lamp socket 10 having the same configuration. The conductive plate 3b can be sandwiched between a pair of second contact pieces 3bc, 3bc facing each other. As a result, the lamp socket 10 does not require a separate rotor having a rotation mechanism on the second receiving surface 1b, and the configuration of the second receiving surface 1b can be simplified.

  Next, a method of mounting the straight tube lamp 20 on the lamp socket 10 will be described.

  6 and 7 are external perspective views of the lighting device 30 including the lamp socket 10 of the present embodiment. The lighting device 30 is used by being fixed to a ceiling material (not shown). The illuminating device 30 is configured by arranging a plurality of (three in this case) luminaires 31 including the lamp socket 10 described above in a straight line. In addition, in the illuminating device 30 shown to FIG. 6 (a), (b), in order to make a structure intelligible, one lamp socket 10 provided in one edge part of the illuminating device 30 is abbreviate | omitted and illustrated.

  The lighting device 30 has a lighting circuit (not shown) that converts an AC voltage from a commercial power source into a predetermined DC voltage, steps down the voltage, and supplies the voltage to the straight tube lamp 20 in accordance with the length of the straight tube lamp 20. It is housed in each of the elongated cuboid lighting fixtures 31. The lighting device 30 includes a lamp socket 10 protruding from the main body of the lighting fixture 31 so that the straight tube lamp 20 can be held at both longitudinal ends of the lighting fixture 31. By attaching the first base part 22 and the second base part 23 provided at both ends of the arc tube 21 in the three straight tube lamps 20 to the corresponding lamp sockets 10, the straight tube lamp 20 is luminaire. Attach to 31 lamp sockets 10.

  In the lighting device 30, the four lamp sockets 10 are connected to the first base part 22 and the second base part of the straight tube lamp 20 so that the three straight tube lamps 20 can be arranged in a straight line. It arrange | positions with the predetermined space | interval according to the length between 23. When each straight tube lamp 20 is mounted on the lamp socket 10, the first base portion 22 of the straight tube lamp 20 is connected to the first receiving surface 1 a side of the lamp socket 10, and the second tube portion 20 of the straight tube lamp 20. The base part 23 is set to the second receiving surface 1b side of the lamp socket 10, and the three straight tube lamps 20 are brought close to each lamp socket 10 toward the lighting fixture 31 side. In the straight tube lamp 20, the pair of first lamp pins 24 and 24 are inserted into the two first insertion ports 2 a and 2 a on the first receiving surface 1 a of the lamp socket 10. Further, in the straight tube lamp 20, the second lamp pin 25 of the straight tube lamp 20 is inserted into one second insertion port 2b on the second receiving surface 1b of another lamp socket 10 (FIG. 6). (Refer to the one-dot chain line of (a), (b)).

  As shown in FIG. 7, the lamp socket 10 has a straight pipe so that the straight pipe lamps 20, 20 are mounted on the one surface 5 a side and the other surface 5 b side in a straight line facing each other. When the first base portion 22 on one end side of the shaped lamp 20 is inserted into the lamp socket 10 side, the two first lamp pins 24 and 24 are inserted into the first insertion ports 2a and 2a, respectively, and a pair of first conductive members. The first lamp pin 24 comes into contact with the first contact pieces 3ac, 3ac included in the plates 3a, 3a, respectively.

  Similarly, the lamp socket 10 is provided at the other end side of the straight tube lamp 20 so that the straight tube lamp 20 is mounted on the one surface 5a side and the other surface 5b side so that the straight tube lamp 20 is mounted in a straight line. When the second cap part 23 having the cap is inserted into the lamp socket 10 side, one second lamp pin 25 is inserted into the second insertion port 2b, and the second contact piece 3bc provided in the second conductive plate 3b, The second lamp pin 25 comes into contact between 3bc.

  In this state, the straight tube lamp 20 includes the mounting board and the first lamp pins 24 and 24 and the second lamp pin 25 so that the light emitting diode inside the light emitting tube 21 faces the irradiation surface side opposite to the main body of the lighting fixture 31. Is defined. At this time, the two first lamp pins 24 and 24 are electrically connected to the two first conductive plates 3 a and 3 a disposed inside the body 6 of the lamp socket 10, and DC power is supplied from the lighting circuit to the light emitting diode side of the straight tube lamp 20. In addition, the large diameter portion 25b of one second lamp pin 25 of the straight tube lamp 20 is electrically connected to the second conductive plate 3b, thereby becoming a ground pin for grounding. In addition, the first contact is made after the first contact piece 3ac of the first conductive plate 3a is bent outward with the insertion of the plate-like protrusion 24a in the first lamp pin 24 into the first insertion port 2a. The plate-like protrusion 24a is held in contact with the first contact piece 3ac by the elastic force of the piece 3ac or the like. Therefore, since the plate-like protrusions 24a of the first lamp pins 24 of the straight tube lamp 20 are mechanically held by the first contact piece 3ac, the first base portion 22 of the straight tube lamp 20 is connected to the lamp socket 10. Will not fall off.

  The lamp socket 10 of the present embodiment has been described using a straight-tube LED lamp with an L-shaped base with a single-side power supply as the straight-tube lamp 20, but in order to mount a straight-tube lamp with a double-side power supply system. It may be used. That is, the lamp socket 10 is provided with one surface of the socket body 5 in the lamp socket 10 in order to mount not only a one-side power feeding method in which power is fed only on the one surface 5a side of the socket body 5 but also a both-side power feeding type straight tube lamp. It is good also as a structure which can each be electrically fed from the 5a side and the other surface 5b side. Further, in the lighting device 30 described above, when the three straight tube lamps 20 are mounted on the lamp socket 10 so as to be arranged in a straight line, it is not necessary to configure all of them with the lamp socket 10 of the present embodiment. The lamp socket 10 of the present embodiment may be provided only in the lamp socket 10 of the lighting fixture 31 on which at least the straight tube lamp 20 is mounted so as to face and straight. That is, the illuminating device 31 includes lamp sockets (not shown) for inserting the first lamp pin 23 and the second lamp pin 25 of the straight tube lamp 20 only on the one surface 5a side only on both end sides of the illuminating device 31. It is good also as a structure.

(Embodiment 2)
The lamp socket 10 of this embodiment shown in FIG. 8 is along the 1st receiving surface 1a to which the 1st nozzle | cap | die part 22 of the straight tube | pipe type lamp 20 is mounted | worn like Embodiment 1 shown in FIG. Instead of moving the straight tube lamp 20 in a direction parallel to the first receiving surface 1a and inserting the first lamp pins 24, 24 into the first insertion port 2a, Using the movable plunger 9, the first lamp pins 24, 24 of the straight tube lamp 20 are provided in the first insertion ports 2 a, 2 a perpendicular to the first receiving surface 1 a on which the first base portion 22 is mounted. The difference is that it is configured to be inserted. In addition, in the figure, the same member as Embodiment 1 is attached with the same number, and the description is omitted.

  In the lamp socket 10 of this embodiment, as shown in FIGS. 8A and 8B, the socket body 5 is provided on the one surface 5a side of the socket body 5 and protrudes in a direction perpendicular to the one surface 5a. 5, a plunger 9 movable to the inside of the socket 5, and pressing members 9 a and 9 a that are inside the socket body 5 and press the plunger 9 from the inside of the socket body 5 to the outside of the socket body 5. .

  In the lamp socket 10 of the present embodiment, the plunger 9 includes a first receiving surface 1a, and the first receiving surface 1a has two first lamp pins 24 perpendicular to the first receiving surface 1a. , 24 are inserted, and the first lamp pins 24, 24 and the first conductive plates 3a, 3a are electrically connected to the pair of first insertion ports 2a, 2a. Further, the lamp socket 10 has a plunger from the position where the plunger 9 protrudes to a mounting position where the straight tube lamp 20 is mounted in a straight line so as to face the one surface 5a side and the other surface 5b side of the lamp socket 10, respectively. The first conductive plate 3a and the second conductive plate 3b are arranged adjacent to each other in a direction perpendicular to the moving direction 9.

  More specifically, the lamp socket 10 has a plunger 9 that is movable in the inner direction of the socket body 5 along the axial direction of the straight tube lamp 20 and has a first receiving surface 1a. The lamp socket 10 is brought into contact with the two first lamp pins 24 and 24 of the straight tube lamp 20 on the inner bottom surface side of each cylindrical first insertion port 2a of the plunger 9 on the one surface 5a side. Each of the first conductive plates 3a includes a flat first contact piece 3ag. The lamp socket 10 is a flat plate in the second conductive plate 3b that is brought into contact with one lamp pin 25 of another straight tube lamp 20 on the inner bottom surface side of the cylindrical second insertion port 2b on the other surface 5b side. Shaped second contact piece 3bf.

  The plunger 9 is pressed from the inner side of the socket body 5 toward the outer side of the socket body 5 by pressing members 9a and 9a made of metal coil springs. Thus, when the lamp socket 10 is mounted with the straight tube lamp 20, the lamp pin 20 is inserted into the first insertion port 2 a provided in the plunger 9, and the plunger 9 is pushed toward the inside of the socket body 5. The lamp pin 25 can be inserted into the second insertion port 2b provided on the other receiving surface 1b. Here, the plunger 9 is made of a synthetic resin molded product having electrical insulation, and the plunger 9 is fitted into a shaft hole 6 g provided in the cover 7 of the lamp socket 10.

  One end portion side of each pressing member 9a, 9a made of a metal coil spring is fixed to each of the fixing pieces 3ai, 3ai made of a metal material for fixing one end portion side of each pressing member 9a, and the above-mentioned inside of the first insertion port 2a. The first contact plates 3ag, 3ag of the first conductive plates 3a, 3a provided on the bottom surface side are electrically connected via connection portions 3ah, 3ah made of a metal material. Furthermore, the other end side of the pressing members 9a, 9a is configured to be electrically connectable to the first contact pieces 3ag, 3ag side from the outside via the connection plates 9b, 9b. The plunger 9 uses metal coil springs as the pressing members 9a and 9a from the inside of the socket 6. However, the plunger 9 is not limited to a coil spring and may be a plunger that can press the plunger 9 toward the outside of the socket 6. Various types can be used.

  The plunger 9 is not limited to the one provided on the one surface 5a side, and may be provided on the other surface 5b side instead of the one surface 5a side. In this case, the plunger 9 provided on the other surface 5b side of the socket body 5 includes a second receiving surface 1b, and the second receiving surface 1b is 1 in the direction perpendicular to the second receiving surface 1b. What is necessary is just to provide the 2nd insertion port 2b by which this 2nd lamp pin 25 is inserted and this 2nd lamp pin 25 and the 2nd electrically-conductive board 3b are electrically connected. Further, the lamp socket 10 has a first direction perpendicular to the moving direction of the plunger 9 from the position where the plunger 9 provided on the other surface 5b side of the socket body 5 protrudes to the position where the straight tube lamp 20 is mounted. The conductive plate 3a and the second conductive plate 3b may be arranged adjacent to each other.

  In the lamp socket 10 of the present embodiment, the plunger 9 or the straight tube lamp having the first insertion port 2a into which the first lamp pin 24 of the straight tube lamp 20 is inserted in a direction substantially perpendicular to the first receiving surface 1a. Since the 20 second lamp pins 25 have the plunger 9 provided with the second insertion port 2b that is inserted in a direction substantially perpendicular to the second receiving surface 1b, the straight tube lamp 20 can be relatively easily connected to the lamp socket 10. It becomes possible to attach to.

(Embodiment 3)
Below, the illuminating device 30 provided with the lamp socket 10 demonstrated in Embodiment 1 is demonstrated with reference to the schematic block diagram of FIG.

  The illuminating device 30 of the present embodiment includes a rectangular parallelepiped luminaire 31 capable of arranging a plurality of (here, two) straight tube lamps 20 in a straight line. The lighting fixture 31 includes only the two lamp sockets 10 of the first embodiment for mounting and supplying power to the two straight tube lamps 20 and the second lamp pin 25 serving as a ground terminal of the straight tube lamp 20. A lamp socket 11 that can be held is provided. Inside the luminaire 31, a terminal block 33 to which a power line from the commercial power supply AC is connected, and an AC voltage from the commercial power supply AC input via the terminal block 33 is a predetermined type adapted to the straight tube lamp 20. A lighting circuit 32 for converting the voltage into the voltage is stored. The output terminal of the lighting circuit 32 is connected to the lamp sockets 10 and 10 via the internal wiring 34, and power is supplied from the first base portion 22 side of the straight tube lamp 20 attached to the lamp sockets 10 and 10. . In addition, the ground terminal portion of the lighting circuit 32 is electrically connected to the central lamp socket 10 and the lamp socket 11 provided at one end (right side in FIG. 9) of the lighting fixture 31 via the internal wiring 36. It is connected.

  Thereby, the illuminating device 30 provided with the lamp socket 10 of Embodiment 1 between the two straight tube lamps 20 arranged in a straight line corresponds the lamp socket 11 to each of the straight tube lamps 20. Therefore, the length of the straight tube lamp 20 in the axial direction can be shortened as compared with the case where it is provided separately. Since the illumination device 30 using the lamp socket 10 of the present embodiment can reduce the thickness of the lamp socket 10, the illumination device 30 having a smaller non-light emitting area can be obtained.

DESCRIPTION OF SYMBOLS 1a 1st receiving surface 1b 2nd receiving surface 2a 1st insertion port 2b 2nd insertion port 3 Conductive part 3a 1st conductive plate 3ac 1st contact piece 3b 2nd conductive plate 3bc 2nd contact Piece 5 Socket body 5a One surface 5b Other surface 5c Straight groove portion 5e Arc-shaped groove portion 6a Outer peripheral surface 8 Holding portion 9 Plunger 9a Press member 10 Lamp socket 20 Straight tube lamp 22 First cap portion 23 Second cap portion 24 First lamp pin 25 Second lamp pin 30 Lighting device 31 Lighting fixture

Claims (9)

Electrical insulation capable of mounting a straight tube lamp having two first lamp pins projecting from the first base part on one end side of the tube body and one second lamp pin projecting from the second base part on the other end side A socket socket, and a socket portion provided on the socket body, the first lamp pin and the second lamp pin of the straight tube lamp can be individually electrically connected,
The socket body is capable of abutting the first base part of the straight tube lamp on one surface side, and inserting a pair of first lamp pins protruding from the first base part. The second base part of the other straight tube lamp can be brought into contact with the first receiving surface having the insertion opening and the other surface side opposite to the one surface, and the second base part And a second receiving surface provided with a second insertion port for inserting the one second lamp pin protruding from the conductive portion, and the conductive portion is electrically connected to the two first lamp pins, respectively. A pair of possible first conductive plates and a second conductive plate electrically connectable to the one second lamp pin;
In the mounting position in which the straight tube lamps are mounted in a straight line on the one surface side and the other surface side, the pair of first conductive plates are separated from the two first lamp pins, respectively. A first contact piece that contacts, and the second conductive plate includes a second contact piece that contacts the one second lamp pin;
In the projection view of the pair of first conductive plates and the second conductive plate on the first receiving surface, the second contact pieces are positioned between the pair of first contact pieces. A lamp socket characterized by that.   The lamp socket according to claim 1, wherein the first conductive plate and the second conductive plate are arranged adjacent to each other along a plane parallel to the first receiving surface.   The first insertion port and the second insertion port are openings of linear grooves provided from the outer peripheral surface side of the socket body toward the center side, and the first insertion port and the second insertion port are arranged at the mounting position. The lamp socket according to claim 2, wherein the contact piece and the two first lamp pins are in contact with each other, and the second contact piece and the one second lamp pin are in contact with each other.   The socket body protrudes in the normal direction of the first receiving surface from at least the first receiving surface side, and mechanically holds a part of the outer periphery of the first cap portion of the straight tube lamp. The lamp socket according to claim 3, further comprising a holding portion.   The socket body is provided with the linear groove portion on each of the first receiving surface and the second receiving surface along a direction perpendicular to a direction in which gravity of the straight tube lamp is applied. The lamp socket according to claim 3.   The socket body includes a straight groove portion provided from the outer peripheral surface side of the socket body toward the center portion side, and the straight pipe portion continuous with the straight groove portion at an end portion of the straight groove portion on the center portion side. An arcuate groove that can guide the first lamp pin in a rotational direction that rotates the shaped lamp around an axial direction, and the first insertion port is an opening of the linear groove and the arcuate groove, 3. The lamp socket according to claim 2, wherein, in the mounting position, the two first lamp pins are mechanically held by the first contact piece disposed in the arc-shaped groove portion.   The socket body is provided on the one surface side, protrudes in a direction perpendicular to the one surface and is movable to the inner side of the socket body, and the socket body is located inside the socket body from the inner side of the socket body. A pressing member that presses the plunger on the outer side of the main body, the plunger including the first receiving surface, and the first receiving surface is perpendicular to the first receiving surface. The two first lamp pins are inserted, and the first lamp pins and the first conductive plate are electrically connected to each other. The pair of first insertion ports are provided, and the plunger protrudes from the protruding position. 2. The lamp according to claim 1, wherein the first conductive plate and the second conductive plate are arranged adjacent to each other in a direction perpendicular to the movement direction of the plunger before reaching the mounting position. socket.   The socket body is provided on the other surface side, protrudes in a direction perpendicular to the other surface and is movable to the inner side of the socket body, and the socket body is located inside the socket body from the inner side of the socket body. A pressing member that presses the plunger on the outer side of the main body, and the plunger provided on the other surface side includes a second receiving surface, and the second receiving surface includes the second receiving surface. A second insertion port through which the second lamp pin is inserted in a direction perpendicular to the receiving surface and the second lamp pin and the second conductive plate are electrically connected; The first conductive plate and the second conductive plate are arranged adjacent to each other in the direction perpendicular to the movement direction of the plunger from the protruding position of the plunger provided to the mounting position to the mounting position. Features that become Lamp socket according to claim 1 or claim 7.   9. A lighting device comprising a plurality of lighting fixtures each including the lamp socket according to claim 1 arranged in a straight line.

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