JP2011119274A - Showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a show case, in which electrical connection between a terminal of an illumination lamp and a power feeding part formed in a socket can be carried out certainly and safely, and simplicity of installation work of the illumination lamp is attained. <P>SOLUTION: The show case 1 is provided with a socket 22 which is constituted of a main unit side socket member 23 and an illumination lamp side socket member 24 which connect the illumination lamp 14 to a power supply of a main unit. The main unit side socket member has a connection portion 29 having a power feeding contact piece 35 built in and the illumination lamp side socket member 24 has an installation lamp 55 installed at end part of the illumination lamp 14 and a housing portion 56. In a state the installation portion 55 is installed at the end part of the illumination lamp 14, the terminal 14A faces the housing portion 56 and in the state the connection portion 29 is housed in the housing portion 56, the terminal 14A is electrically connected to the power feeding contact piece 35 and energizes the power feeding contact piece 35 to the terminal 14A side by a pressing part 61 formed in the housing portion 56. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an illuminating lamp provided for illuminating a display room or the front of a showcase, and more particularly to a showcase provided with an illuminating lamp having a terminal at an end.

  2. Description of the Related Art Conventionally, showcases installed in supermarkets, convenience stores, and the like are equipped with illumination lamps for illuminating the display room, the front of the showcase, and the like in a display room formed in the main body. The illuminating lamp is attached to the canopy lower surface located in the front part of the ceiling surface of the display room or in front of the shelf lower surface when a plurality of shelves are installed. Since a fluorescent lamp or the like is generally used as the illumination lamp, replacement work is required as it deteriorates over time.

  Each illumination lamp attached in the display room is connected to a power supply line connected to a power source installed in the machine room (see Patent Document 1). Since the illuminating lamp is attached to the front part of the display room, the power supply line is drawn out to the position of the illuminating lamp, and is wired along the lower surface of the shelf or the ceiling surface. . As shown in FIGS. 57 and 58, a socket 202 is attached to the end of the power supply line 201. By attaching a terminal 204 provided at the end of the illuminating lamp 203 to the socket 202, the illuminating lamp 203 and the feeder line 201 are electrically connected, and are electrically connected to the power source 205 via the feeder line 201.

  In this case, considering the workability of attaching / detaching the illuminating lamp to / from the socket to which the feeding line is connected, the feeding line in the vicinity of the socket is in the vicinity of the mounting position of the illuminating lamp while the feeding line is kept in a predetermined slack. It is fixed to. Therefore, in the state where the illuminating lamp is mounted, there is a problem that the power supply line is exposed to the front surface of the display room due to the power supply line slacking downward from the shelf or the ceiling surface, which is not preferable in appearance.

  Moreover, the illuminating lamp electrically connected to the power supply line via the socket is fixed by sandwiching a clip or the like fixed to the lower surface of the shelf or the ceiling surface of the display room. In particular, in a low-temperature showcase that is used by cooling the inside of the showcase, a heat retaining cylinder is attached to the illuminating lamp in order to suppress a decrease in illuminance due to temperature dependence of the illuminating lamp such as a fluorescent lamp. For this reason, lighting lamps that are mounted long across the left and right sides of the showcase are troublesome because they involve work to detach from clips that are attached in the longitudinal direction and work to detach from each socket during replacement work. was there.

Therefore, in order to simplify the replacement operation of the illuminating lamp as described above and prevent the feeding line from being exposed, a fluorescent lamp mounting apparatus as disclosed in Patent Document 2 has been developed. This fluorescent lamp mounting device includes a socket body fixed to the lower surface of the shelf and a fluorescent lamp holder mounted and fixed to the socket body. Fluorescent lamp holders are attached to both ends of a fluorescent lamp provided with a power receiving terminal pin, and by attaching the fluorescent lamp holder to the socket body, the feeding line is not exposed in a slack state from the bottom of the shelf, and The fluorescent lamp can be attached to the lower surface of the shelf only by engaging the fluorescent lamp holder with the socket body.
JP-A-7-143828 Japanese Utility Model Publication No. 5-69892

  However, in the socket configuration in Patent Document 2 as described above, the power receiving terminal pins are electrically connected by contact with the elastic force of the power supply contact piece itself. For this reason, when the power receiving terminal pin is repeatedly inserted and removed, the elastic force of the power supply contact piece itself is weakened, and there is a problem in that a contact failure between the power reception terminal pin and the power supply contact piece occurs. Such poor contact causes inconvenience that the lighting of the fluorescent lamp is not reliably performed, and in some cases, the terminal pin for power reception rises to an abnormal temperature, and the terminal pin or the socket may be burned out. there were.

  Further, in the conventional socket structure, the fluorescent lamp holder and the socket main body constituting the socket are formed by coupling elastic pieces on both sides formed on the outer surface side of the end face of the fluorescent lamp holder. By engaging with the locking groove, it was engaged detachably. Then, by pulling the fluorescent lamp itself downward, the engagement is released. For this reason, the fluorescent lamp holder and the socket body are detached by applying a force downward, so that the engaging force is weakened by repeated mounting work, and the weight of the fluorescent lamp is affected. In combination with the fluorescent lamp, the fluorescent lamp attached to the socket may fall off together with the fluorescent lamp holder.

  Therefore, in order to secure these engagement mechanisms, a mechanism for engaging the engagement members formed with each other is used, and when the engagement members are disengaged, the engagement members located on the inner side are pressed inward. It is conceivable to release the engagement. However, in such a configuration, a large force has to be transmitted to the engaging member located inside to disengage the engagement, and there is a problem that the operation becomes complicated.

  Further, as shown in FIGS. 57 and 58, the fluorescent lamp attached to the bottom surface of the shelf or the ceiling surface of the display room is electrically connected via a power supply line 201 in which a capacitor 206 is connected to a power source 205 provided in the showcase body. Connected. In the configuration of the fluorescent lamp socket as described above, it is possible to electrically connect the power receiving terminal pin of the fluorescent lamp and the power supply contact piece. However, the capacitor 206 is attached to any location of the showcase and is connected to the power supply connection. It was connected separately to the power supply line connected to the piece. For this reason, the wiring is complicated, and the work of collecting the wiring is complicated.

  On the other hand, the fluorescent lamp holder in the prior art as described above suppresses inconvenience that the heat of the fluorescent lamp leaks into the display room, and suppresses inconvenience that the illuminance of the fluorescent lamp decreases due to the temperature in the display room. Therefore, it plays a role as a support member to which a fluorescent lamp cover for heat insulation to be attached is attached. However, since the fluorescent lamp cover support member formed on the fluorescent lamp holder is configured by inserting the cylindrical wall of the fluorescent lamp holder into the fluorescent lamp cover, it can be easily removed from the fluorescent lamp holder. There is a problem that the fluorescent lamp cover falls off and the replacement work of the illumination lamp becomes complicated.

  Furthermore, when the showcase to which the illuminating lamp is attached is used as a low-temperature showcase, dew condensation occurs on the illuminating lamp itself or the fluorescent lamp cover surrounding the illuminating lamp. There is a risk of intrusion into the electrical connection of the lamp and short circuit.

  Accordingly, the present invention has been made to solve the conventional technical problems, and can reliably and safely perform electrical connection between the terminal of the illuminating lamp and the power feeding portion provided in the socket. Provided is a showcase capable of simplifying the operation of mounting an illuminating lamp.

  The showcase of the present invention is provided with an illuminating lamp having a terminal at an end thereof, and includes a socket for connecting the illuminating lamp to a power source of the main body, and the socket is fixed to the main body side and is internally provided. A main body side socket member having a power feeding portion and an illuminating light side socket member that is attached to the main body side socket member and is detachably attached to the main body side socket member. The terminal of the illuminating lamp is electrically connected to the power feeding portion of the main body side socket member directly or via the conductive member while being attached to the socket member, and the illuminating lamp side socket member is connected to the main body side socket member. A waterproofing mechanism is provided for watertightly isolating the power feeding unit and the terminal of the illuminating lamp from the outside in a mounted state.

  According to the showcase of the present invention, in the showcase provided with an illuminating lamp having a terminal at the end, the socket is provided for connecting the illuminating lamp to the power source of the main body, and the socket is fixed to the main body side. It consists of a main body side socket member having a power feeding part inside, and an illuminating lamp side socket member that is attached to the illuminating lamp and is detachably attached to the main body side socket member. The terminal of the illuminating lamp is connected to the power supply part of the main body side socket member directly or via the conductive member while being attached to the side socket member, and the illuminating lamp side socket member is connected to the main body side socket member. In particular, the showcase is a low-temperature showcase because it has a waterproof mechanism that watertightly isolates the power supply unit and the terminal of the illuminating lamp from the outside. In this case, since the terminal and the power feeding unit are isolated from the outside by the waterproof mechanism, it is possible to suppress the occurrence of a short circuit due to the dew that adheres to the surface of the socket and enters the illuminating lamp side socket member. . Therefore, even when condensed water adheres to the illuminating lamp or the socket, the illuminating lamp can be used safely.

  Embodiments to which the present invention is applied will be described below with reference to Examples 1 to 4.

  First, the showcase of Example 1 will be described with reference to the drawings. 1 is a perspective view of a low-temperature showcase 1 as an embodiment of the showcase of the present invention, FIG. 2 is a schematic longitudinal side view of the low-temperature showcase 1, FIG. 3 is a perspective view of the bottom surface of the shelf 8, and FIG. The partial perspective view of is shown. In each figure, a low-temperature showcase 1 is installed in a store such as a supermarket or a convenience store, and a main body 4 is configured by attaching side plates 3 and 3 on both sides of a substantially U-shaped heat insulating wall 2. . A partition plate 6 and a bottom plate 7 are attached to the inside of the heat insulating wall 2 with a space therebetween, and a display chamber 5 that opens to the front is formed inside of the partition plate 6 and the heat insulating wall 2. The duct 9 is configured.

  The duct 9 communicates with a discharge port 10 that opens at the upper edge of the opening of the display chamber 5 and a suction port 11 that opens at the lower edge of the opening. A fan 12 is installed vertically, and a blower 13 is installed in the duct 9 below the bottom plate 7.

  In the display room 5, a plurality of shelves 8 are built up and down. The shelf 8 is held by a support column 64 provided in the display chamber 5 by brackets 65, 65 attached to the left and right. The shelf 8 has a reinforcing plate 32 attached to the lower surface thereof at a predetermined interval from the left and right sides. In the present embodiment, the shelf 8 includes a front part under the shelf and a rear part under the shelf. As shown in FIG. 4, the reinforcing plate 32 has a substantially trapezoidal cross section whose upper side is longer than the lower side. In this embodiment, the lower surface is the lower end of the price rail 8 </ b> A attached to the front end of the shelf 8. It shall be substantially flush with the position. The rear upper end of the reinforcing plate 32 is bent outward to form a fixed surface, and is fixed to the lower surface of the shelf 8 by spot welding.

  Further, an attachment piece 50 is formed on the lower surface of the shelf 8 so as to be positioned on the front side of the reinforcing plate 32 and to extend downward in the left and right directions. The mounting piece 50 is formed to be inclined forward and downward at a predetermined angle, and a plurality of notches 50A are formed at predetermined intervals as shown in FIG. In the present embodiment, the attachment pieces 50 are not formed on the left and right side ends, and a part of the shelf plate constituting the shelf 8 is located at the same position as the attachment pieces 50 in the same manner as the attachment pieces 50. An end mounting piece 67 is formed by cutting and raising downward at an angle of.

  And, on the lower surface of the shelf 8, as will be described in detail later, a product on the shelf 8 installed under the socket 22 via a socket 22 and an illumination lamp 14 for illuminating the front of the display room 5 are detachably attached. It has been.

  Further, a canopy 15 is provided at the upper edge of the front opening of the heat insulating wall 2 so as to be located in front of the discharge port 10, and the lower part of the canopy 15 illuminates the inside of the display chamber 8 and the periphery of the display chamber 8 from above. An illuminating lamp 16 is detachably attached via a socket 22 and the like in each embodiment described in detail below. The illuminating lamps 14 and 16 have terminals for receiving power at their ends, and can be turned on by power feeding from the power feeding section, and are, for example, fluorescent lamps, LEDs, and the like.

  On the other hand, a machine room 17 is formed below the heat insulating wall 2, and a unit base 18 is provided in the machine room 17, and is included in the cooling device R on the unit base 18. A compressor 19, a condenser 20, and a condenser blower 21 are installed and disposed in the machine room 17.

  With the above configuration, when the blower 13 is operated, the cold air that has exchanged heat with the cooler 12 is raised in the duct 9 and discharged into the display chamber 5 from the discharge port 10. Then, the cool air sucked from the suction port 11 is accelerated again by the blower 13, and the cool air is circulated in the display chamber 5 to cool the display chamber 5 to a predetermined temperature.

  Next, the structure of the socket 22 of the illuminating lamp 14 of the showcase 1 of the present invention will be described with reference to FIGS. 5 is a side view of the socket 22 attached to one side of the display chamber 5, FIG. 6 is a partial perspective sectional view of the socket 22 of FIG. 5, FIG. 7 is a perspective view of the main body side socket member 23, and FIG. 9 is a side view of the housing 25 of the main body side socket member 23, FIG. 10 is a side view of the lid member 26 of the main body side socket member 23, and FIG. 11 is a plan view of FIG. 8 viewed from below. 12 is a front view of the main body side socket member 23, FIG. 13 is a view showing a state where the feeder line 36 is attached to FIG. 11, FIG. 14 is a perspective view of the illuminating lamp side socket member 24, and FIG. 16 is a side view of the side socket member 24, FIG. 16 is a view of FIG. 15 viewed from the right, FIG. 17 is a view of FIG. 15 viewed from the back side, FIG. 20, the power supply line 36 and the illuminating lamp 14 are installed in the socket 22. FIG. 21 is an electrical wiring diagram, FIG. 22 is a partially cutaway perspective view of the state in which the socket 22 is attached to the bottom surface of the shelf 8, and FIG. 23 is a perspective view in which the socket 22 is attached to the bottom surface of the shelf 8. 24 is a partially longitudinal side view of FIG. 23, and FIG. 25 is an enlarged perspective view of the socket 22 attached to the end of the shelf 8 as seen from below. .

  The socket 22 in this embodiment is for fixing the illuminating lamp 14 having the power receiving terminal 14 </ b> A at the end thereof to the main body side of the showcase 1, in this embodiment, the lower surface of the shelf 8. The socket 22 includes a main body side socket member 23 and an illuminating lamp side socket member 24.

  The main body side socket member 23 includes a housing 25 that opens inward and a lid member 26 that closes the opening of the housing 25. The housing 25 is attached to the main body side mounting surface 28 that is attached in contact with the lower surface of the shelf 8, a connection portion 29 that protrudes downward from the main body side mounting surface 28, and the rear end of the main body side mounting surface 28. The capacitor housing 30 to be formed is integrally formed of a hard synthetic resin. The connection portion 29 and the capacitor housing portion 30 are formed in communication with each other and both open toward the inside of the display chamber 5.

  And the capacitor | condenser 34 is accommodated only in the capacitor | condenser accommodating part 30 of one socket 22 of the sockets 22 attached to the both ends of the illuminating lamp 14. FIG.

  The connection portion 29 formed in the housing 25 is formed with a partition wall 29A that divides the inside up and down, and two power supply contact pieces (power supply portions) 35 in a state of being suspended across the partition wall 29A. , 35 are accommodated. Feed lines 36 are connected to the upper ends of these feed contacts 35. FIG. 21 shows the connection relationship of the power supply line 36 of each power supply connection piece 35. That is, for the socket 22 in which the capacitor 34 is accommodated in the housing 25, one power supply line 36 is connected to the capacitor 34. The other power supply line 36 is drawn outside with the lid member 26 attached, and is connected to a power source 37 provided in the machine room 17 of the showcase 1. In addition, for the socket 22 in which the capacitor 34 is not accommodated in the casing 25, after any of the power supply wires 36 is pulled out with the lid member 26 attached, the other one accommodates the capacitor 34. The other feeder line 36 is connected to a power source 37 in the same manner as described above.

  As a result, the capacitor 34 that has been conventionally attached to any part of the display room or the showcase separately from the socket can be accommodated in the socket 22, and is wired to the illumination lamp 14 via the feeder line 36. It is not necessary to separately attach the connected capacitor 34 in the showcase 1. Therefore, it is possible to simplify the wiring process of the feeder line 36, reduce the number of parts, and improve the assembly workability.

  The power supply contact piece 35 is made of an elastic material, and is curved toward the center of the connection portion 29 as shown in FIGS. 6 and 9. After the power supply contact pieces 35, 35 are close to each other, the connection portion 29, that is, the power supply contact piece 35 accommodated on the front side of the main body side socket member 23 is front (left side in FIG. 6), and the power supply contact piece 35 accommodated on the rear side is rearward (right side in FIG. 6). ), And further protrudes toward the inner wall so as to approach the inner wall of the connection portion 29.

  An insertion portion 39 is formed on the lower surface of the connection portion 29 for inserting the power receiving terminal 14A of the illuminating lamp 14 from the lower end with the partition wall 29A being separated. Therefore, the terminal 14A inserted from the insertion portion 39 formed at the lower end of the connection portion 29 can enter the connection portion 29 to which the power supply contact piece 35 is attached.

  Further, on the front and rear surfaces of the connection portion 29, as shown in FIG. 12, a predetermined height from the lower end, specifically, the folded end surface of the power supply contact piece 35 accommodated in the connection portion 29 is the connection portion. Notches 29B and 29B are formed over the height close to the inner wall of 29.

  Further, before and after the connection portion 29 (shown on the left and right in FIG. 9), engagement claws (engagement portions) 40 and 40 whose lower ends protrude inward after hanging are provided with the housing 25. It is integrally formed. The engaging claws 40, 40 are detachably inserted into engaging claws 41, 41 formed on the illuminating lamp side socket member 24, which will be described later. Suppose that a predetermined space is formed.

  On the other hand, a mounting surface engaging portion 31 is formed at the front end of the main body side mounting surface 28 of the housing 25 so as to be detachably locked to the mounting piece 50 or the end mounting piece 67 on the lower surface of the shelf 8. The mounting surface engaging portion 31 is inclined at substantially the same angle as the mounting piece 50 or 67 as described above, and is formed to open toward the mounting piece 50 or 67.

  Further, the capacitor accommodating portion 30 of the housing 25 is formed to be inclined downward and rearward with respect to the main body side mounting surface 28. The rear surface of the capacitor housing portion 30 is formed so as to be inclined by a predetermined angle so that it can be attached along the front wall 32A of the reinforcing plate 32 having a substantially trapezoidal cross section formed on the lower surface of the shelf 8. As shown in FIG. 22, the reinforcing plate 32 is formed with an engagement hole 51 and a screw hole 52 at the mounting position of the socket 22. On the other hand, a holding projection 33 is formed on the rear surface of the capacitor housing portion 30 so as to project toward the front wall 32 </ b> A of the reinforcing plate 32.

  The holding projection 33 is formed with a notch 33A (shown only in FIG. 22) which is substantially flush with the rear surface of the capacitor housing portion 30 and is formed in a predetermined dimension from the outside to the inside. After inserting into the engagement hole 51 formed in 32, the socket 22 is slid in the cutting direction, that is, outward. Thereafter, a screw hole 47 formed in the lid member 26 described later and a screw hole 52 formed in the reinforcing plate 32 are overlapped and screwed with a screw 53, so that the socket 22 is securely connected to the reinforcing plate 32. It becomes possible to fix to.

  Further, the front surface of the capacitor housing portion 30 is continuously formed integrally with the engaging claw 40 located on the rear side of the connection portion 29 (on the rear side in this embodiment). An inclined surface 30 </ b> A is formed that is inclined while being inclined so as to form an acute angle with respect to the engagement between the joint claw 40 and the engagement claw 41 of the illuminating lamp side socket member 24. As a result, a finger insertion space is formed between the inclined surface 30A and the engaging claw 41 of the illuminating lamp side socket member 24 so that a finger can be inserted.

  On the other hand, as shown in FIG. 10, the lid member 26 is formed in substantially the same shape as the connection portion 29 of the housing 25 and the opening of the capacitor housing portion 30. A terminal insertion notch 42 is formed at a position corresponding to the lid portion of the connection portion 29 of the housing 25 corresponding to the insertion portion 39 and the partition wall 29A formed in the housing 25. Further, a flange 44 that abuts on the upper edge of the illuminating lamp side socket member 24 is formed on the upper portion of the connection portion 29.

  The lid member 26 has a feeder outlet 26 </ b> A formed at a position corresponding to the rear portion of the body-side mounting surface 28 of the housing 25. Further, as shown in FIG. 7, a lid-side capacitor housing portion 45 opening toward the inside of the capacitor housing portion 30 is formed at a position corresponding to the lid member of the capacitor housing portion 30, and the lid-side capacitor A fixing portion 46 that is substantially flush with the rear surface of the capacitor housing portion 30 of the housing 25 is formed at the rear end of the housing portion 45. The fixing portion 46 is in contact with the reinforcing plate 32 attached to the lower surface of the shelf 8 as described above, and the screw hole 47 for screwing with the screw hole 52 formed in the reinforcing plate 32 and the grounding terminal fixing portion. 48 (shown in FIGS. 11 and 12) is formed.

  Therefore, together with the power supply line 36 as described above, the ground terminal 69 drawn from the power source 37 to the main body socket member 23 is stably fixed to the ground terminal fixing portion 48 as shown in FIGS. Thereby, the ground terminal 69 can be safely and easily fixed to the main body side socket member 23, and the wiring process of the ground terminal 69 can be simplified.

  Next, the illuminating lamp side socket member 24 will be described with reference to FIGS. 14 to 19. The illuminating lamp side socket member 24 is formed of a hard synthetic resin, like the main body side socket member 23, and has a mounting portion 55 mounted on the end portion of the illuminating lamp 14 and an outer side of the mounting portion 55. It is comprised from the accommodating part 56 formed.

  The mounting portion 55 includes a bottomed cylindrical cover portion 57 that surrounds the end portion of the illuminating lamp 14, and a plurality of illuminating lamp holding portions 58 that are formed to protrude inward from the inner wall of the cover portion 57. It is configured. The illuminating lamp holding portion 58 can hold the outer periphery of the illuminating lamp 14 inserted into the cover portion 57 substantially exactly. Moreover, the illumination lamp holding part 58 is formed so that the display chamber 5 side, that is, the insertion side end of the illumination lamp 14 is expanded outward, so that the end of the illumination lamp 14 can be easily inserted. Become.

  The illuminating lamp holding portion 58 formed on the cover portion 57 is not limited to the above shape. For example, as shown in FIG. 26, the bottom surface of the cylinder constituting the cover portion 57, that is, the outside of the cover portion 57 is formed. The end lamp is provided with a plurality of (four in FIG. 26) claw-shaped illumination lamp holding portions 63 formed inwardly, that is, projecting toward the insertion side of the end of the illumination lamp 14. It may hold | maintain by pinching 14 edge part. At this time, as shown in FIG. 27, the claw-shaped illumination lamp holding part 63 may be formed so as to protrude further to the illumination lamp 14 side than the middle of the cover part 57. As shown in the drawing, the structure may be configured to be engaged with a groove 14 </ b> B formed in advance at the end of the illuminating lamp 14.

  In any configuration, the outer periphery of the illuminating lamp 14 inserted into the cover portion 57 can be held substantially exactly by each illuminating lamp holding portion 63.

  Further, as shown in FIGS. 16 and 19, a heat insulating cylinder holding part 59 composed of a plurality of protrusions formed substantially in parallel with the insertion direction of the illumination lamp 14 is formed on the outer peripheral surface of the cover part 57. (Not shown in FIG. 18). The heat insulating cylinder 43 is a transparent cylindrical member made of a hard synthetic resin that surrounds the periphery of the lighting lamp 14 in the longitudinal direction, and has a function of cutting off heat between the lighting lamp 14 and the inside of the display chamber 5. While preventing the heat | fever of the illuminating lamp 14 from having a bad influence on the goods in the display room 5, the illuminating lamp 14 itself is cooled by the cool air in the said display room 5, and it prevents that illumination intensity falls. Therefore, the outer dimension of the cover part 57 of the mounting part 55 is formed to be smaller than the inner diameter dimension of the heat retaining cylinder 43, and the difference between the outer dimension of the cover part 57 and the inner diameter dimension of the heat retaining cylinder 43 is kept warm. By making up with the protrusions of the tube holding portion 59, the heat insulating tube 43 can be held substantially exactly.

  It should be noted that the heat retaining tube holding portion 59 formed on the outer peripheral surface of the cover portion 57 is not limited to the above shape, and for example, protrudes outwardly on the outer peripheral surface of the cover portion 57 as shown in FIG. A plurality of projections 70 to be formed are formed. On the other hand, openings 71 and 71 are also formed at positions corresponding to the projections 70 at the end of the heat retaining cylinder 43, and the openings 70 are formed in the heat retaining cylinder 43. It is assumed that the heat insulating cylinder 43 may be held by being inserted into the.

  Terminal insertion holes 60 and 60 through which power receiving terminals 14 </ b> A and 14 </ b> A provided at the end portion of the illumination lamp 14 can be inserted are formed on the cylindrical bottom surface constituting the cover portion 57, that is, the outer end surface of the cover portion 57. Has been. The terminal insertion hole 60 is formed in a long hole shape that is formed by caulking the central portion only in one direction so as to be shorter than the other directions. Therefore, the inner edge of the terminal insertion hole 60 is pressed against the terminal 14A in a state where the terminal 14A is inserted. As a result, the terminal 14A once inserted into the terminal insertion hole 60 is not easily removed.

  In the present embodiment, the terminal insertion hole 60 formed on the outer end surface of the cover portion 57 has a long hole shape, but is not limited thereto, and as shown in FIG. 30, the terminal 14A It is also possible to use a circular terminal insertion hole 72 formed on the inner diameter that can be engaged substantially exactly with respect to the outer dimensions of the terminal.

  On the other hand, the accommodating portion 56 formed outside the mounting portion 55 has an upper surface opened, and an accommodating space for detachably accommodating the connecting portion 29 of the main body side socket member 23 is formed therein. The terminal 14 </ b> A of the illuminating lamp 14 inserted through the terminal insertion hole 58 of the cover part 57 enters the storage space, that is, the storage part 56.

  In addition, at the lower corners of the housing portion 56, pressing portions 61 and 61 are formed integrally with the housing portion 56 so as to protrude upward in the interior. Further, a plurality of, in the present embodiment, two drain holes 62, 62 are formed on the lower surface of the accommodating portion 56.

  Before and after the accommodating portion 56 (shown on the left and right in FIG. 17), the portion extends outward from the lower surface of the accommodating portion 56 by a predetermined dimension, i.e., extends in the front-rear direction, and then stands up at a substantially right angle. The engaging claws 41 and 41 are formed integrally with the accommodating portion 56. Each of the engaging claws 41, 41 is made of an elastic material that can be pressed inward with the lower end as a center, and the engaging claw 41 formed at the upper end on the outer side, that is, on the front side, The engagement claw 41 formed on the rear side is formed so as to protrude rearward. The engaging claws 41 and 41 can be engaged with and disengaged from the engaging claws 40 and 40 formed on the main body side socket member 23 as described above.

  Next, a method for attaching the socket 22 and a method for attaching the illuminating lamp 14 using the socket 22 in this embodiment will be described. First, the main body side socket member 23 constituting the socket 22 is fixed to the lower surface of the shelf 8.

  As shown in FIGS. 3 and 25, when attaching the main body side socket member 23 to the end of the lower surface of the shelf 8, the holding projection 33 formed on the rear surface of the capacitor housing portion 30 of the main body side socket member 23 is attached to the shelf 8. It inserts along the said shelf side board 68 between the reinforcement board 32 provided in a lower surface, and the shelf side board 68 which comprises a shelf side surface, and the attachment surface engaging part 31 is latched by the edge part attachment piece 67. FIG. Thereafter, the screw hole 47 formed in the fixing portion 46 of the main body side socket member 23 is overlapped with the screw hole previously drilled in the reinforcing plate 32 and screwed with a screw (not shown).

  As a result, the main body side socket member 23 is constituted by two parts of the casing 25 and the lid member 26. However, the casing 25 is held by the mounting surface engaging portion 31 being locked to the end mounting piece 67. The protrusion 33 is inserted between the reinforcing plate 32 and the shelf side plate 68, and is sandwiched between the lid member 26 that directly fixes the casing 25 to the lower surface of the shelf 8 with screws, and the shelf side plate 68. For this reason, even when a pulling force is applied to the engaging claws 40, 40 formed in the housing 25, the lid member 26 and the housing 25 are separated, and the illuminating lamp 14 attached to the socket 22 is provided. The inconvenience of falling can be avoided.

  Further, when the length of the illuminating lamp 14 to be rated is shorter than the width dimension of the showcase 1, it is attached to the showcase 1 according to the length dimension of the illuminating lamp 14. Therefore, the socket 22 for attaching the illuminating lamp 14 is located not inside the end portion of the shelf 8 but inside the end portion and attaches the socket 22.

  In this case, as shown in FIGS. 22 and 23, the holding projection 33 of the main body side socket member 23 is inserted into the engagement hole 51 previously drilled in the reinforcing plate 32, and the attachment surface engaging portion 31 is attached. Lock to the piece 50. Thereafter, with the holding projection 33 inserted into the engagement hole 51, the main body side socket member 23 is slid outward, and the notch 33 </ b> A formed in the holding projection 33 is engaged with the end surface of the engagement hole 51. Combine. In this state, the screw hole 47 formed in the fixing portion 46 of the main body side socket member 23 is overlapped with the screw hole 52 drilled in advance in the reinforcing plate 32 and is screwed by the screw 53.

  As a result, the casing 25 is a lid member that closes the opening of the casing 25 in a state where the mounting surface engaging portion 31 is locked to the mounting piece 50 and the holding projection 33 is pressed against the end surface of the engaging hole 51. 26 is screwed directly to the reinforcing plate 32. Even in this case, even if a downward pulling force is applied to the engaging claws 40, 40 formed on the housing 25, the lid member 26 and the housing 25 are separated, and the illuminating lamp 14 attached to the socket 22 falls. Inconvenience can be avoided.

  Next, a method of attaching the illuminating lamp 14 and the illuminating lamp side socket member 24 to the main body side socket member 23 constituting the socket 22 will be described. First, the illuminating lamp side socket members 24 are attached to both ends of the illuminating lamp 14. At this time, the power receiving terminal 14 </ b> A of the illuminating lamp 14 is inserted into the terminal insertion holes 60, 60 formed in the cover part 57, and the terminal part 14 </ b> A is formed outside the cover part 57. It will be in a state facing inside.

  Further, in the present embodiment, since the illumination lamp holding portion 58 is formed on the inner wall of the cover portion 57, the illumination lamp 14 is held substantially exactly in the cover portion 57. Furthermore, since the terminal 14A provided in the illuminating lamp 14 is inserted into the terminal insertion hole 60, the terminal insertion hole 60 having a shape in which the central portion is caulked is also held substantially exactly.

  As a result, since the illuminating lamp 14 is held by the illuminating lamp side socket member 24 with the illuminating lamp side socket member 24 attached to the end of the illuminating lamp 14, the illuminating lamp side can be easily attached in the mounting operation. The inconvenience that the socket member 24 is detached from the illumination lamp 14 can be suppressed.

  It is to be noted that the heat insulation cylinder 43 may be attached to the illuminating lamp 14 in a state where the one illuminating lamp side socket member 24 is attached. In this case, the end portion of the heat retaining tube 43 is held substantially tightly by the heat retaining tube retaining portion 59 formed on the outer peripheral surface of the cover portion 57 of the illuminating lamp side socket member 24. It is possible to suppress the inconvenience that the heat retaining tube 43 falls off during the replacement work, and it is possible to easily attach the heat retaining tube 43 together with the illuminating lamp 14 to the illuminating lamp side socket member 24.

  With the illuminating lamp side socket members 24 attached to both ends of the illuminating lamp 14, each illuminating lamp side socket member 24 is attached to the main body side socket member 23. That is, the connecting portion 29 of the main body side socket member 23 is inserted into the accommodating portion 56 of the illuminating lamp side socket member 24. At this time, since the terminal 14 </ b> A for receiving power of the illuminating lamp 14 is attached in the accommodating portion 56, the terminal 14 </ b> A is inward from the insertion portion 39 formed at the lower end of the connection portion 29. It enters and comes into contact with the power supply contact piece 35 accommodated in the connection portion 29.

  Here, the power supply contact piece 35 is bent toward the center of the connection portion 29 by the elastic member as described above, and after both the power supply contact pieces 35 come close to each other, the shape is folded back toward the side of the connection portion 29. Therefore, the elastic force of the power supply contact piece 35 urges the terminal 14A inserted from the insertion portion 39. Thereby, these terminals 14A and the feeding contact piece 35 are electrically connected.

  In particular, in the housing portion 56 of the illuminating lamp side socket member 24 in the present embodiment, the pressing portions 61 and 61 are formed at the lower corners, so that the pressing portions 61 and 61 are the front and rear surfaces of the connecting portion 29. It enters the inside of the connection part 29 from the notch 29B formed in. As a result, the pressing portion 61 urges the power supply contact piece 35 inward, that is, toward the terminal 14 </ b> A after contacting the power supply contact pieces 35, 35 in the connection portion 29.

  Accordingly, the power supply contact pieces 35 and 35 are deformed from the dotted line state to the solid line state in FIG. 6, and the power supply contact piece 35 can be reliably brought into contact with the terminal 14 </ b> A. Therefore, it is possible to reliably perform the electrical connection between the power supply contact piece 35 and the terminal 14A of the illuminating lamp 14 stably as compared with the conventional structure, and the reliability can be improved.

  Therefore, a force is applied in a direction in which the terminal 14 </ b> A of the illuminating lamp 14 attached to the shelf 8 by the socket 22 is separated from the power supply contact piece 35 accommodated in the connection portion 29 of the main body side socket member 23 due to its own weight. However, the pressing portion 61 formed in the housing portion 56 of the illuminating lamp side socket member 24 can reliably press the power supply contact piece 35 attached to the main body side socket member 23 against the terminal 14A of the illuminating lamp 14, resulting in poor contact. Accordingly, it is possible to avoid lighting failure and burning of the terminal 14A and the socket 22 due to an abnormal rise in temperature, and the reliability of the socket 22 itself is improved.

  Further, the connecting portion 29 of the main body side socket member 23 is inserted into the accommodating portion 56 of the illuminating lamp side socket member 24, and the illuminating lamp side socket member 24 is further pushed upward to form the outer portion of the accommodating portion 56. The engaging claws 41, 41 engage with the engaging claws 40, 40 formed outside the connection portion 29 of the main body side socket member 23.

  Thereby, the illumination light side socket member 24 can be attached to the main body side socket member 23 stably. Therefore, it becomes possible to easily attach the illuminating lamp 14 to the lower surface of the shelf 8 as compared with the conventional configuration in which the illuminating lamp is held by the clip, and the mounting operation can be simplified. Further, by stably locking the illuminating lamp side socket member 24 to the main body side socket member 23, the terminal 14A of the illuminating lamp 14 is stably brought into contact with the power supply contact piece 35 accommodated in the main body side socket member 23. It is possible to perform illumination stably and safely.

  In this case, since the end of the illuminating lamp 14 is surrounded by the cover portion 57 of the illuminating lamp side socket member 24, the vicinity of the terminal 14A of the illuminating lamp 14 can be protected. Furthermore, since the end portion of the illuminating lamp 14 is substantially firmly held by the illuminating lamp holding portion 58 of the illuminating lamp side socket member 24 attached to the main body side socket member 23, the illuminating lamp 14 itself is stably illuminated. The lamp side socket member 24 can hold the lamp. Further, the weight of the illuminating lamp 14 affects the electrical connection portion between the terminal 14 </ b> A of the illuminating lamp 14 and the power supply contact piece 35 attached in the main body side socket member 23 as a load, thereby suppressing the inconvenience that causes poor contact. Will be able to. Also by this, the electrical connection between the terminal 14A of the illuminating lamp 14 and the feeding contact piece 35 can be ensured.

  Furthermore, since the terminal 14A of the illuminating lamp 14 is also pressed against the inner edge of the terminal insertion hole 60 formed in the cover part 57 of the illuminating lamp side socket member 24, the terminal 14A itself is stably held by the cover part 57. Is done. Also by this, the weight of the illuminating lamp 14 affects the electrical connection portion between the terminal 14A of the illuminating lamp 14 and the power supply contact piece 35 mounted in the main body side socket member 23 as a load, resulting in inconvenience of contact failure. Therefore, the electrical connection between the terminal 14A of the illuminating lamp 14 and the feeding contact piece 35 can be ensured.

  Further, since the heat insulating tube 43 surrounding the periphery of the illuminating lamp 14 is held substantially exactly by the heat insulating tube holding portion 59 formed on the outer peripheral surface of the cover portion 57 of the illuminating light side socket member 24, It becomes difficult for the cool air in the display chamber 5 to enter the heat retaining cylinder 43 in which the lamp 14 is accommodated, and it is possible to suppress a decrease in illuminance due to the illumination lamp 14 being exposed to the cool air and decreasing in temperature. In addition, it is possible to prevent the dew condensation adhering to the surface of the heat insulating cylinder 43 from entering the heat insulating cylinder 43 and to prevent the dew condensation from entering the terminal 14A or the like attached to the illuminating lamp side socket member 24. It becomes possible to use the illumination lamp 14 safely.

  In addition, in the case where the heat insulating cylinder 43 cannot be attached, for example, the dew adhering to the surfaces of the illuminating lamp 14 and the socket 22 enters the illuminating lamp side socket member 24, particularly the accommodating portion 56 in which the terminal 14A is accommodated. Even if it exists, since the drain hole 62 is formed in the lower surface of the accommodating part 56, the said condensed water can be easily discharged | emitted smoothly from the drain hole 62 without adhering to the terminal 14A. Therefore, a short circuit due to the condensed water can be suppressed, and the illuminating lamp 14 can be used safely.

  On the other hand, when releasing the engagement between the main body side socket member 23 and the illuminating lamp side socket member 24, the inclined surface 30A formed on the front surface of the capacitor housing portion 30 of the main body side socket member 23, and the illuminating lamp side socket member An index finger or a middle finger is inserted into a finger insertion space formed between the rear engaging claw 41 formed on the front side 24 and a thumb is applied to the front engaging claw 41. Then, by pressing the engaging claw 41 inward with a finger, the engaging claw 41 is deformed inward and the engagement with the engaging claw 40 is released.

  At this time, the index finger and the middle finger inserted into the finger insertion space can be applied with less force by applying the principle of the lever with the contact point as an axis by, for example, the first joint contacting the inclined surface 30A. The engagement claw 41 can be pressed inward to release the engagement. Thereby, the troublesomeness of the engagement work of the main body side socket member 23 and the illuminating lamp side socket member 24 can be eliminated, and the attaching work of the illuminating lamp 14 can be simplified.

  Next, the structure of the socket 80 of the showcase illuminating lamp 14 according to the second embodiment will be described with reference to FIGS. The entire configuration of the showcase is the same as that in the above embodiment, and the description thereof is omitted. 31 is a perspective view of the bottom surface of the shelf 8 with the socket 80 attached, FIG. 32 is a perspective view of the socket 80, FIG. 33 is a perspective view of the main body side socket member 81, and FIG. 34 is a perspective view of the illuminating lamp side socket member 82. 35 is a partially transparent side view of the socket 80 of FIG. 32, FIG. 36 is a sectional view of FIG. 32 viewed from the left side, and FIG. 37 is a sectional view of the state where the illumination lamp 14 is attached to FIG.

  The socket 80 according to the second embodiment is for fixing the illuminating lamp 14 having the power receiving terminal 14 </ b> A at the end thereof to the main body side of the showcase 1, in this embodiment, the lower surface of the shelf 8. The socket 80 includes a main body side socket member 81 and an illuminating lamp side socket member 82.

  The main body side socket member 81 includes a housing 83 that opens inward, and a lid member 84 that closes the opening of the housing 83, both of which are formed of hard synthetic resin.

  The casing 83 has a connection portion 86 formed to hang down from the lower surface of the shelf 8, and the connection portion 86 is formed with a partition wall 86A that divides the interior vertically. Two power supply contact pieces (power supply units) 87 and 87 are accommodated in a state of being suspended. A power supply line 88 is connected to the upper ends of these power supply contact pieces 87, and the power supply line 88 is drawn to the outside from a power supply line drawing portion 85 formed on the upper surface of the housing 83.

  Note that the main body side socket member 81 in this embodiment is not provided with a housing portion for housing a capacitor as in the above embodiment, and therefore the power supply line 88 is separately provided in the showcase. After being connected to the capacitor, it shall be connected to the power supply.

  The power supply contact piece 87 is made of an elastic material, and is curved toward the center of the connection portion 86 as shown in FIG. 35. After both the power supply contact pieces 87 and 87 are close to each other, they are directed outward. The distance between the bent power supply contact pieces 87 and 87 is increased. In addition, the terminal holding | maintenance part 87A formed along the external shape of the terminal 14A of the illuminating lamp 14 shall be formed in the position where both electric power feeding contact pieces 87 and 87 adjoin. An insertion portion 90 is formed on the lower surface of the connection portion 86 to insert the power receiving terminal 14A of the illuminating lamp 14 from the lower end with the partition wall 86A being separated. Therefore, the terminal 14A inserted from the insertion portion 90 formed at the lower end of the connection portion 86 can enter the connection portion 86 to which the power supply contact piece 87 is attached.

  On the other hand, an operation portion 92 having elasticity, in which an engagement claw (engagement portion) 91 is formed at the lower portion, is formed on a side surface located outside the connection portion 86. The operation portion 92 has an upper end formed continuously with the connection portion 86 and is inclined from the upper portion inward, that is, toward the illumination lamp 14. An engagement claw 91 that protrudes inward is formed in the operation portion 92 at a position corresponding to the lower side of the connection portion 86 located on the inner side. The engaging claw 91 is formed to extend to a position corresponding to the inner side surface of the insertion portion 90, and the upper surface of the engaging claw 91 is a partition wall 86 </ b> A formed in the connection portion 87. It is assumed that there is a predetermined distance from the lower end of. And the lower end of the operation part 92 in which the said engaging nail | claw 91 is formed inclines toward the outward again, and is formed. Thereby, the operation part 92 having the engaging claw 91 is formed to extend outward from the connection part 86, in the present embodiment, downward.

  Further, as described above, in the middle of the operation portion 92 corresponding to the position where the terminal 14A of the illuminating lamp 14 entering from the insertion portion 90 of the connection portion 86 is fixed, it is directed inward as shown in FIGS. The terminal holding part 93 which protrudes is formed.

  A sliding surface 94 of the illuminating lamp side socket member 24 is formed at the front and rear end portions of the outer surface of the connecting portion 86 so as to be cut out in the vertical direction.

  On the other hand, the lid member 84 is formed in substantially the same shape as the inner surface of the housing 83, and a fixing portion 95 extending inward is formed at the upper end of the lid member 84. The fixing portion 95 is formed with an engagement hole 96 for fixing to the lower surface of the shelf 8 by screwing.

  The opening of the casing 83 is closed by a lid member 84 in a state where the power supply contact piece 87 and the power supply line 88 are disposed in the casing 83, and the casing 83 and the lid member 84 are closed. The joint surface is bonded and integrated. In addition, in a state where the casing 83 and the lid member 84 are integrated, a flange 97 is formed on the upper portion of the connection portion 86 so as to form a gap having a predetermined dimension with the outer peripheral surface of the connection portion 86. To do.

  On the other hand, the illuminating lamp side socket member 82 is formed of a hard synthetic resin similarly to the main body side socket member 81, and the mounting portion 100 to be mounted on the end portion of the illuminating lamp 14 and the mounting portion 100. It is comprised from the accommodating part 101 formed in the outer side.

  The mounting portion 100 is formed in a bottomed cylindrical shape surrounding the end portion of the illumination lamp 14. Then, terminal insertion holes 102 and 102 through which power receiving terminals 14A and 14A provided at the end portion of the illumination lamp 14 can be inserted into the cylindrical bottom surface constituting the mounting portion 100, that is, the outer end surface of the mounting portion 100. Is formed.

  On the other hand, the accommodating part 101 formed on the outer side of the mounting part 100 has an upper surface and an outer side surface that are continuously open to accommodate the connecting part 86 of the main body side socket member 81 in a removable manner. A housing space is formed, and the terminal 14 </ b> A of the illuminating lamp 14 inserted through the terminal insertion hole 102 of the mounting portion 100 enters the housing space, that is, the housing portion 101. At this time, it is assumed that the shape of the upper end 101A of the accommodating portion 101 is formed so as to be insertable between the connecting portion 86 of the main body side socket member 81 and the flange 97 as shown in FIG.

  Further, the outer end surface of the housing portion 101, that is, the end surface opposite to the side on which the mounting portion 100 is formed, is formed so as to extend slightly inward. In addition, an operation portion insertion port 104 that is cut out in a substantially U-shape is formed on the lower surface of the housing portion 101, and an inner edge of the operation portion insertion port 104 is formed on the operation portion 92. The end surface 105 is used to lock the engaging claw 91.

  Next, a method for attaching the socket 80 and a method for attaching the illuminating lamp 14 using the socket 80 according to the embodiment will be described. First, the fixing portion 95 formed on the lid member 84 of the socket member 81 on the main body side is directed to the end of the lower surface of the shelf 8, and the engagement hole 96 formed in the fixing portion 95 is previously drilled on the lower surface of the shelf 8. It overlaps with the provided engagement hole and is fixed with a screw (not shown). Thereby, the main body side socket member 81 constituting the socket 80 is fixed to the lower surface of the shelf 8.

  Next, the illuminating lamp side socket members 82 are attached to both ends of the illuminating lamp 14. At this time, the power receiving terminal 14 </ b> A of the illuminating lamp 14 is inserted into the terminal insertion holes 102 and 102 formed in the mounting portion 100, and the housing portion 101 in which the terminal 14 </ b> A is formed outside the mounting portion 100. It will be in a state facing inside.

  Note that the inner diameter of the mounting portion 100 is formed to be larger than the outer dimension of the illuminating lamp 14 by a predetermined dimension. For example, the end of the heat retaining cylinder 43 as shown in the above embodiment may be held. .

  In a state in which the illuminating lamp side socket members 82 are mounted on both ends of the illuminating lamp 14, the housing portion is formed in the illuminating lamp side socket member 82 from the lower side of the main body side socket member 81. Insert into 101. At this time, it is possible to easily insert the connecting portion 86 into the accommodating portion 101 by sliding the outer side end surface of the accommodating portion 101 along the sliding surface 94 formed on the connecting portion 86. It becomes.

  At this time, the power receiving terminal 14A of the illuminating lamp 14 is attached to the housing portion 101 so that the terminal 14A is inward from the insertion portion 90 formed at the lower end of the connecting portion 86. The power supply contact piece 87 accommodated inside the connection portion 86 enters, and the terminal 14A is sandwiched between the elastic force of the power supply contact piece 87 and the terminal holding portion 87A formed on the power supply contact piece 87. . As a result, the terminal 14A and the feeding contact piece 87 are electrically connected.

  Further, in the process of pushing up the accommodating portion 101 of the illuminating lamp side socket member 82 toward the mounting surface of the main body side socket member 81, the operation portion 92 is formed to project on the track of the accommodating portion 101. The end portion of the portion 92 is inserted into and removed from the operation portion insertion port 104 formed on the lower surface of the accommodating portion 101, and the operation portion 92 is made of an elastic material. Is pushed outward by the end surface of the operation portion insertion port 104, and therefore, the engaging claw 91 formed in the operation portion 92 is deformed toward the outside and pushed upward further, so that the lower end of the housing portion 101 is The operation unit 92 returns to the initial state, that is, the position corresponding to the inner side surface of the insertion unit 90.

  In this state, the engaging claw 91 formed on the operation unit 92 is locked to the end surface 105 formed on the lower end of the storage unit 101. At this time, the upper end 101 </ b> A of the accommodating portion 101 is accommodated in a gap between the connecting portion 86 formed on the main body side socket member 81 and the flange 97.

  Thereby, the illuminating lamp side socket member 82 can be stably attached to the main body side socket member 81. Therefore, it becomes possible to easily attach the illuminating lamp 14 to the lower surface of the shelf 8 as compared with the conventional configuration in which the illuminating lamp is held by the clip, and the mounting operation can be simplified. In addition, the terminal 14A of the illuminating lamp 14 is stably brought into contact with the power supply contact piece 87 accommodated in the main body side socket member 81 by stably locking the illuminating lamp side socket member 82 to the main body side socket member 81. It is possible to perform illumination stably and safely.

  Also in this case, since the end of the illuminating lamp 14 is surrounded by the mounting part 100 of the illuminating lamp side socket member 82, the vicinity of the terminal 14A of the illuminating lamp 14 can be protected. Further, as shown in FIG. 37, since the terminal 14A of the illuminating lamp 14 is held by the terminal holding section 94 in a state where the operation section 92 is returned to the initial state, the terminal 14A of the illuminating lamp 14 and the main body side socket are provided. The weight of the illuminating lamp 14 affects the electrical connection portion with the power supply contact piece 87 mounted in the member 81 as a load, and the inconvenience that causes poor contact can be suppressed. The electrical connection with the contact piece 87 can be ensured. Further, in this case, since the terminal 14A of the illuminating lamp 14 can be held by the terminal holding portion 94 formed directly on the operation portion 92, the illuminating lamp 14 can be connected without using the illuminating lamp side socket member 82. It is also possible to attach to the main body side socket member 81.

  On the other hand, when the engagement between the main body side socket member 81 and the illuminating lamp side socket member 82 is disengaged, the operation portion 92 formed extending outward from the socket 80, that is, downward is directed outward. By pressing, the engagement claw 91 formed on the operation portion 92 is disengaged from the end surface 105. In this state, the illuminating lamp side socket member 82 is pulled down, so that the illuminating lamp side socket member 82 is lowered. It can be detached from the main body side socket member 81.

  In particular, since the operation portion 92 in the embodiment is formed to extend below the main body side socket member 81, the operability is good, and the main body side socket member 81 of the socket 80 and the illuminating lamp side socket member 82 are provided. Can be easily engaged and disengaged.

  Therefore, the socket 80 in this embodiment can easily recognize the operation unit 92 not only when attached to the bottom surface of the shelf 8 but also when attached to the ceiling surface of the display chamber 5 or the canopy 15. In particular, since it can be operated, the effect can be exhibited.

  Furthermore, since the operation unit 92 is formed to extend below the main body side socket member 81, even when condensation is attached to the socket 80, the operation unit 92 is connected to the socket 80 via the operation unit 92. In addition, since the condensed water accumulated inside can be discharged to the outside from the operation portion insertion port 104, water droplets adhere to the terminal 14A and the power supply contact piece 87 of the illuminating lamp 14, and a short circuit or the like occurs. Inconveniences that occur can be suppressed in advance.

  Next, the structure of the socket 110 of the illuminating lamp 14 in the showcase according to the third embodiment will be described with reference to FIGS. 38 to 42. The entire configuration of the showcase is the same as that in the above embodiment, and the description thereof is omitted. FIG. 38 is a perspective view of the bottom surface of the shelf 8 with the socket 110 attached, FIG. 39 is an internal perspective side view of the main body side socket member 111, FIG. 40 is a plan view of the main body side socket member 111 viewed from below, and FIG. 42 is a side view of the illuminating lamp side socket member 112 as seen from the outside, and FIG.

  The socket 110 according to the third embodiment fixes the illuminating lamp 14 having the power receiving terminal 14 </ b> A at the end thereof so as to be freely disengaged from the main body side of the showcase 1, in this embodiment, the lower surface of the shelf 8. The socket 110 includes a main body side socket member 111 and an illuminating lamp side socket member 112. In addition, in the lighting lamp side socket member 112 according to the third embodiment, the pressing portion 61 is not formed, and the terminal insertion hole 60 may be either a round hole or a long hole. Except for the above, it is assumed that the configuration is substantially the same as the illuminating lamp side socket member 24 in the first embodiment.

  The main body side socket member 111 includes a housing 113 that opens inward and a lid member 114 that closes the opening of the housing 113, both of which are formed of hard synthetic resin. The housing 113 has a connection part 116 formed to hang down from the lower surface of the shelf 8, and the connection part 116 is formed with a partition wall 116 </ b> A that divides the interior vertically. Two power supply contact pieces (power supply units) 117 and 117 are accommodated in a state of being suspended. Note that the power supply contact piece 117 is configured in substantially the same manner as the power supply contact piece 87 shown in the second embodiment, and a description thereof will be omitted. Feed lines 118 are respectively connected to the upper ends of the feed contact pieces 117, and the feed lines 118 are drawn to the outside from the upper surface of the housing 113.

  Since the main body side socket member 111 in this embodiment is not provided with a housing portion for housing a capacitor as in the first embodiment, the feeder line 118 is separately provided in a showcase. Connected to the power supply after being connected to the capacitor.

  An insertion portion 120 for inserting the power receiving terminal 14A of the illuminating lamp 14 from the lower end is formed on the lower surface of the connection portion 116 with the partition wall 116A being separated. Therefore, the terminal 14 </ b> A inserted from the insertion part 120 formed at the lower end of the connection part 116 can enter the connection part 116 to which the power supply contact piece 117 is attached.

  In addition, engaging claws (engaging portions) 121 and 121 having a lower end projecting inward after hanging down before and after the connecting portion 116 (shown on the left and right in FIGS. 40 and 42) are housings. It is formed integrally with the body 113. Since the engaging claws 121 and 121 are detachably inserted into the engaging claws 41 and 41 formed on the illuminating lamp side socket member 112, there is a predetermined gap between the engaging claws 121 and the connecting portion 116. It is assumed that a space is formed.

  On the other hand, the lid member 114 is formed in substantially the same shape as the opening of the connection portion 116 of the housing 113, and a flange 124 that is in contact with the upper end of the illuminating lamp side socket member 112 at the upper portion of the connection portion 116. Is formed. Further, a fixing portion 122 is formed at the upper end of the lid member 114 horizontally with respect to the mounting surface of the shelf 8. The fixing portion 122 abuts on the lower surface of the shelf 8 and is screwed in advance with a screw hole and a screw. A screw hole 123 for mating is formed.

  The opening of the housing 113 is closed with a lid member 114 in a state where the power feeding contact piece 117 and the power feeding line 118 are disposed therein, and the joint surface between the housing 113 and the lid member 114 is It shall be bonded and integrated. In addition, in a state where the casing 113 and the lid member 114 are integrated, a flange 124 that forms a gap of a predetermined dimension with the outer peripheral surface of the connection portion 116 is formed on the upper portion of the connection portion 116. To do. A waterproof rubber 125 constituting a waterproof mechanism is provided in a gap between the flange 124 and the outer peripheral surface of the connection portion 116.

  With the above configuration, a method of attaching the illuminating lamp 14 by the socket 110 in the embodiment will be described. First, the fixing portion 122 formed on the lid member 114 of the main body side socket member 111 is directed to the end of the lower surface of the shelf 8, and the engagement hole 123 formed in the fixing portion 122 is previously drilled in the lower surface of the shelf 8. It overlaps with the provided engagement hole and is fixed with a screw (not shown). Thereby, the main body side socket member 111 which comprises the socket 110 is fixed to the shelf 8 lower surface.

  Next, the illuminating lamp side socket members 112 are attached to both ends of the illuminating lamp 14. At this time, the power receiving terminal 14 </ b> A of the illuminating lamp 14 is inserted into the terminal insertion holes 60, 60 formed in the cover part 57, and the terminal part 14 </ b> A is formed outside the cover part 57. It will be in a state facing inside.

  With the illuminating lamp side socket members 112 attached to both ends of the illuminating lamp 14, each illuminating lamp side socket member 112 is attached to the main body side socket member 111. That is, the connection portion 116 of the main body side socket member 111 is inserted into the housing portion 56 of the illuminating lamp side socket member 112. At this time, since the power receiving terminal 14A of the illuminating lamp 14 is mounted in the accommodating portion 56, the terminal 14A is formed at the lower end of the connecting portion 116 as in the first embodiment. Terminal holding portion 117 </ b> A formed on the power supply contact piece 117 and the elastic force of the power supply contact piece 117. The terminal 14A is clamped at. As a result, the terminal 14A and the feeding contact piece 117 are electrically connected.

  Further, the connecting portion 116 of the main body side socket member 111 is inserted into the accommodating portion 56 of the illuminating lamp side socket member 112, and further, the illuminating lamp side socket member 112 is pushed upward to be formed outside the accommodating portion 56. The engaging claws 41, 41 engage with the engaging claws 121, 121 formed outside the connection portion 116 of the main body side socket member 111.

  Thereby, the illumination light side socket member 112 can be stably attached to the main body side socket member 111. Therefore, it becomes possible to easily attach the illuminating lamp 14 to the lower surface of the shelf 8 as compared with the conventional configuration in which the illuminating lamp is held by the clip, and the mounting operation can be simplified. Further, by stably locking the illuminating lamp side socket member 112 to the main body side socket member 111, the terminal 14 </ b> A of the illuminating lamp 14 is stably brought into contact with the power supply contact piece 117 accommodated in the main body side socket member 111. It is possible to perform illumination stably and safely.

  At this time, since the flange 124 is formed on the main body side socket member 111 at a predetermined distance from the outer peripheral surface of the connection portion 116, the upper end of the housing portion 56 of the illuminating lamp side socket member 112 It is accommodated in a gap formed between the connecting portion 116 and the flange 124. In this case, since the waterproof rubber 125 is provided between the flange 124 and the connection portion 116, the waterproof rubber 125 causes the housing portion 56 of the illuminating lamp side socket member 112 and the main body side socket member 111 to be connected. This contact surface can be isolated from the outside in a watertight manner.

  Thereby, in particular, when the inside of the display chamber 5 is cooled to a predetermined temperature as in the present embodiment, it is partitioned by the waterproof rubber 125, so that it adheres to the surface of the socket 110 and enters into the illuminating lamp side socket member 112. It is possible to suppress the occurrence of a short circuit due to the dew condensation that has entered and attached to the feeding contact piece 117 and the terminal 14A of the illuminating lamp 14. Therefore, even when condensed water adheres to the illumination lamp 14 and the socket 110, the illumination lamp 14 can be used safely.

  When releasing the engagement between the main body side socket member 111 and the illuminating lamp side socket member 112, the front and rear engaging claws 41, 41 formed on the illuminating lamp side socket member 112 are clamped with fingers, By pressing the engagement claw 41 inward, the engagement claw 41 is deformed inward and the engagement with the engagement claw 121 is released.

  In the first and third embodiments, the engagement between the main body side socket member 23 or 111 and the illuminating lamp side socket member 24 or 112 is an engagement formed on the main body side socket member 23 (or 111). This is done by engaging the joint claw 40 (or 121) with the engagement claw 41 formed on the illuminating lamp side socket member 24 (or 112). At this time, the engaging claw 40 (or 121) is formed so that the lower end protrudes toward the connecting portion 29 (or 116), and the engaging claw 41 is formed so that the upper end protrudes outward. However, the engagement between the main body side socket member and the illuminating lamp side socket member is not limited to this. Hereinafter, another embodiment will be described with reference to FIG. 43 to FIG. 45 or FIG. 46 to FIG.

  43 is an internal perspective sectional view of a main body side socket member 131 constituting a socket 130 as a first other embodiment, and FIG. 44 is an illumination lamp side socket member 132 attached to the main body side socket member 131 of FIG. FIG. 45 is a partial perspective cross-sectional view of the socket 130. In addition, since it is the structure substantially the same as the socket 110 in Example 3 except the point about the structure about an engaging part and the waterproof mechanism, description is abbreviate | omitted.

  The engagement claws (engagement portions) 133 formed on the main body side socket member 131 in this embodiment are positioned in front of and behind the connection portion 116 (shown on the left and right in FIG. 43). The upper end is formed so as to be folded upward, and the upper end protrudes outward and is formed integrally with the connecting portion 116. This engaging claw 133 is also made of an elastic material as in the above embodiments, and can be deformed by pressing the folded portion.

  On the other hand, the engaging portion 134 formed on the illuminating lamp side socket member 132 is located on the front and rear surfaces (shown on the left and right in FIG. 44) of the housing portion 56 and is formed to protrude outward. The engaging portion 134 is formed with a communication hole penetrating vertically.

  With such a configuration, the connection portion 116 of the main body side socket member 131 is inserted into the housing portion 56 of the illuminating lamp side socket member 132, and the illuminating lamp side socket member 132 is further pushed upward to form the outer surface of the housing portion 56. The lower ends of the engaging claws 133 formed on the main body side socket member 131 are inserted into the engaging portions 134, 134. At this time, since the engaging claw 133 is made of an elastic material that is folded back upward, the engaging claw 133 that has entered the illuminating lamp side socket member 132 from the lower end engages as the upper part enters. An urging force that spreads outward acts inside the joint portion 134, whereby the engagement claw 133 is reliably engaged with the engagement portion 134.

  Thereby, the illumination light side socket member 132 can be stably attached to the main body side socket member 131. Therefore, the terminal 14A of the illuminating lamp 14 can be stably brought into contact with the power supply contact piece 117 accommodated in the main body side socket member 131, and illumination can be performed stably and safely.

  46 is an internal perspective sectional view of a main body side socket member 141 constituting a socket 140 as another second embodiment, and FIG. 47 is an illumination lamp side socket member 142 attached to the main body side socket member 141 of FIG. FIG. 48 is a partial perspective sectional view of the socket 140. In addition, since it is the structure substantially the same as the socket 110 in Example 3 except the point about the structure about an engaging part and the waterproof mechanism, description is abbreviate | omitted.

  The engagement claws (engagement portions) 143 formed on the main body side socket member 141 in this embodiment are positioned in front of and behind the connection portion 116 (shown on the left and right in FIG. 46), and after hanging down, the lower end is The engaging claw 143 located on the outer side, that is, on the front side, protrudes forward, and the engaging claw 143 located on the rear side protrudes rearward, and is formed integrally with the connecting portion 116. The engaging claws 143 are also made of an elastic material as in the above embodiments.

  On the other hand, the engaging portion formed on the illuminating lamp side socket member 142 extends outward from the front and rear surfaces of the housing portion 56 (shown on the left and right in FIG. 47) by a predetermined dimension, that is, after extending in the front-rear direction, respectively. Engagement pieces (engagement portions) 144 and 144 formed upright at substantially right angles are formed integrally with the housing portion 56. The engagement piece 144 is made of an elastic material that allows the engagement piece 144 to be pressed inwardly around the connecting portion with the accommodating portion 56, and has an upper end inwardly toward the accommodating portion 56 side. It is formed so as to protrude. Further, a predetermined gap is formed between the engagement piece 144 and the accommodating portion 56 so that the engagement claw 143 of the main body side socket member 141 can be inserted.

  With this configuration, the connection part 116 of the main body side socket member 141 is inserted into the housing part 56 of the illuminating lamp side socket member 142, and the illuminating lamp side socket member 142 is further pushed upward. Accordingly, the upper end of the engagement piece 144 is deformed outward by the engagement claw 143 that abuts on the upper end of the engagement piece 144, so that each engagement claw 143 formed on the outer surface of the housing portion 56. Is accommodated between the accommodating portion 56 and the engaging piece 144, whereby the upper end protruding inward of the engaging piece 144 and the lower end protruding outward of the engaging claw 143 are combined. Then, the engagement piece 144 and the engagement claw 143 are reliably engaged by the inward biasing force of the engagement piece 144.

  Thereby, the illumination light side socket member 142 can be attached to the main body side socket member 141 stably. Therefore, the terminal 14A of the illuminating lamp 14 can be stably brought into contact with the power supply contact piece 117 accommodated in the main body side socket member 141, and illumination can be performed stably and safely.

  Next, the structure of the socket 150 of the illuminating lamp 14 in the showcase according to the fourth embodiment will be described with reference to FIGS. The entire configuration of the showcase is the same as that in the above embodiment, and the description thereof is omitted. 49 is a longitudinal side view of the main body side socket member 150 constituting the socket 150, FIG. 50 is a plan view of FIG. 49 viewed from below, FIG. 51 is a front view of the main body side socket member 151, and FIG. FIG. 53 is a front view of FIG. 52 viewed from the left, FIG. 54 is a sectional view of FIG. 53, FIG. 55 is a plan view of FIG. A cross-sectional view is shown.

  The socket 150 according to the fourth embodiment is for fixing the illuminating lamp 14 having the power receiving terminal 14 </ b> A at the end thereof to the main body side of the showcase 1, in this embodiment, the lower surface of the shelf 8. The socket 150 includes a main body side socket member 151 and an illuminating lamp side socket member 152.

  The main body-side socket member 151 includes a housing 153 that opens inward and a lid member 154 that closes the opening of the housing 153, both of which are molded from a hard synthetic resin. The housing 153 has a connection portion 156 having an opening on the lower side. The connection portion 156 includes two power supply contact pieces (power supply portions) 157 and 157 inside, and lower ends of the power supply contact pieces 157 and 157. Are electrically connected to power supply terminals 158 and 158, respectively. The power supply side terminals 158 and 158 are electrically connected by inserting a power reception side terminal (conductive member) provided in the illuminating lamp side socket member 152 into the inside, and a lower surface opening formed in the connection portion 156. It faces.

  A flange 156A extending downward is formed at the opening edge of the connecting portion 156, and the periphery of the power supply side terminals 158 and 158 is surrounded by the flange 156A. Further, in this connection portion 156, a waterproof rubber 163 having a waterproof function for watertightly separating the inside and the outside of the connection portion 156 where the power supply contact piece 157 is provided is provided. On the other hand, power supply lines 159 and 159 are connected to upper ends of the power supply contact pieces 157 and 157, respectively, and the power supply lines 159 are drawn out from the upper surface of the housing 153.

  Since the main body side socket member 151 in this embodiment is not provided with a housing portion for housing a capacitor as in the first embodiment, the feeder 159 is separately provided in the showcase. Connected to the power supply after being connected to the capacitor.

  Engaging claws (engaging portions) 160 and 160 whose bottom ends project inward after hanging down before and after the connecting portion 156 (shown on the left and right in FIGS. 49 and 50) are housings. It is formed integrally with the body 153. Since the engaging claws 160 and 160 are detachably inserted into the engaging claws 161 and 161 formed on the illuminating lamp side socket member 152, there is a predetermined gap between the engaging claws 160 and the connecting portion 156. It is assumed that a space is formed.

  On the other hand, the lid member 154 is formed in substantially the same shape as the opening of the connection portion 156 of the housing 153, and the upper end of the lid member 154 has a fixing portion 155 formed horizontally with respect to the shelf 8 mounting surface. The fixing portion 155 is formed with a screw hole 155A that contacts the lower surface of the shelf 8 and is screwed into a screw hole that is previously drilled.

  The opening of the housing 154 is closed with a lid member 154 in a state where the power supply contact piece 157, the power supply side terminal 158, and the power supply line 159 are disposed in the housing 153. The joint surface with the lid member 154 is bonded and integrated.

  On the other hand, the illuminating lamp side socket member 152 is formed of a hard synthetic resin similarly to the main body side socket member 151, and the mounting portion 164 to be mounted on the end portion of the illuminating lamp 14 and the mounting portion 164 of the mounting portion 164. It is comprised from the connection part 166 formed in an outer side.

  The mounting portion 164 includes a bottomed cylindrical cover portion 165 that surrounds the end portion of the illumination lamp 14. Terminal insertion holes 167 and 167 through which power receiving terminals 14A and 14A provided at the end of the illuminating lamp 14 can be inserted are formed on the bottom surface of the cylinder constituting the cover 165, that is, the outer end surface of the cover 165. Yes.

  On the other hand, the connection part 166 formed outside the mounting part 164 protrudes upward from the upper surface of the connection part 166 and the lower part is electrically connected to the terminal 14A of the illuminating lamp 14 inserted from the terminal insertion hole 167. The power receiving side terminal 168 is provided so as to be connectable to the terminal.

  Before and after the connection portion 166 (illustrated on the left and right in FIG. 52), the connection portion 166 extends outward from the lower surface of the connection portion 166 by a predetermined dimension, that is, extends in the front-rear direction, and then stands up at a substantially right angle. The engaging claws 161 and 161 are formed integrally with the connecting portion 166. Each of the engaging claws 161 and 161 is made of an elastic material that can be pressed inwardly with the lower end as a center, and the engaging claw 161 having an upper end formed outward, that is, on the front side, The engagement claw 161 formed on the rear side is formed so as to protrude rearward. The engaging claws 161 and 161 can be engaged with and disengaged from the engaging claws 160 and 160 formed on the main body side socket member 151 as described above.

  With the above configuration, a method for mounting the illuminating lamp 14 using the socket 150 in the embodiment will be described. First, the fixing portion 155 formed on the lid member 154 of the main body side socket member 151 is directed to the end portion of the lower surface of the shelf 8, and the engaging hole 155A formed in the fixing portion 155 is previously drilled in the lower surface of the shelf 8. It overlaps with the provided engagement hole and is fixed with a screw (not shown). Thereby, the main body side socket member 151 constituting the socket 150 is fixed to the lower surface of the shelf 8.

  Next, the illuminating lamp side socket members 152 are attached to both ends of the illuminating lamp 14. At this time, the power receiving terminal 14A of the illuminating lamp 14 is inserted into the terminal insertion holes 167 and 167 formed in the cover portion 165, and the power receiving side terminal 168 in which the terminal 14A is accommodated in the connection portion 166, 168 is electrically connected.

  With the illuminating lamp side socket members 152 attached to both ends of the illuminating lamp 14, each illuminating lamp side socket member 152 is attached to the main body side socket member 151. That is, the connection portion 156 of the main body side socket member 151 is connected to the connection portion 166 of the illuminating lamp side socket member 152. At this time, since the power receiving side terminals 168 and 168 electrically connected to the power receiving terminal 14A of the illuminating lamp 14 protrude from the upper surface of the connection portion 166, the power receiving side terminals 168 are connected. The terminals are electrically connected by being fitted into power supply side terminals 158 and 158 provided in the portion 156. Further, since one end of the power supply side terminal 158 is electrically connected to the power supply line 159 connected to the power source, the terminal 14A of the illumination lamp 14 is also electrically connected to the power source.

  In addition, the connection portion 166 of the illuminating lamp side socket member 152 and the connection portion 156 of the main body side socket member 151 are connected, and the illuminating lamp side socket member 152 is further pushed upward to form the connection portion 166 outside. The engaging claws 161 and 161 engage with engaging claws 160 and 160 formed on the outer side of the flange 156A of the main body side socket member 151.

  Thereby, the illumination light side socket member 152 can be attached to the main body side socket member 151 stably. Therefore, it becomes possible to easily attach the illuminating lamp 14 to the lower surface of the shelf 8 as compared with the conventional configuration in which the illuminating lamp is held by the clip, and the mounting operation can be simplified. Further, by stably locking the illuminating lamp side socket member 152 to the main body side socket member 151, the terminal 14 </ b> A of the illuminating lamp 14 can be stably connected via the conductive member such as the power receiving side terminal 168 and the power feeding side terminal 158. The power supply contact piece 157 accommodated in the main body side socket member 151 can be electrically connected, and illumination can be performed stably and safely.

  At this time, since the main body side socket member 151 is provided with the waterproof rubber 163 in the connecting portion 156, the power receiving side terminal 168 of the illuminating lamp side socket member 152 and the main body side socket are provided by the waterproof rubber 163. The power supply side terminal 158 of the member 151 can be water-tightly isolated from the outside.

  Thereby, in particular, when the inside of the display chamber 5 is cooled to a predetermined temperature as in the present embodiment, it is partitioned by the waterproof rubber 163, so that dew condensation adhering to the surface of the socket 150 is applied to the terminals 158 and 168. It can suppress that it adheres and a short circuit generate | occur | produces. Therefore, even when condensed water adheres to the illumination lamp 14 and the socket 150, the illumination lamp 14 can be used safely.

  When releasing the engagement between the main body side socket member 151 and the illuminating lamp side socket member 152, the front and rear engaging claws 161, 161 formed on the illuminating lamp side socket member 152 are clamped with fingers, By pressing the engagement claw 161 inward, the engagement claw 161 is deformed inward, and the engagement with the engagement claw 160 can be released.

It is a perspective view of a low-temperature showcase. It is a schematic longitudinal side view of the low-temperature showcase of FIG. (Example 1) which is a lower surface perspective view of the shelf in the state where the socket and the illumination lamp were attached. (Example 1) which is a fragmentary perspective view of a shelf lower surface. (Example 1) which is a side view of the socket attached to the one side of a display room. FIG. 6 is a partially transparent sectional view of the socket of FIG. 5 (Example 1). (Example 1) which is a perspective view of a main body side socket member. (Example 1) which is a side view of a main body side socket member. (Example 1) which is a side view of the housing | casing of a main body side socket member. (Example 1) which is a side view of the cover member of a main body side socket member. FIG. 9 is a plan view of FIG. 8 as viewed from below (Example 1). (Example 1) which is a front view of a main body side socket member. FIG. 11 is a diagram showing a state where a power supply line is attached to FIG. 11 (Example 1). (Example 1) which is a perspective view of an illumination light side socket member. (Example 1) which is a side view of an illumination light side socket member. FIG. 16 is a diagram when FIG. 15 is viewed from the right (Example 1). FIG. 16 is a view from the back side of FIG. 15 (Example 1). FIG. 16 is a diagram when FIG. 15 is viewed from below (Example 1). (Example 1) which is an expanded sectional view of a cover part. (Example 1) which is the schematic explaining the state which attaches a feeder and an illumination lamp to a socket. FIG. 21 is an electrical wiring diagram of FIG. 20 (Example 1). (Example 1) which is the partially notched perspective view which looked at the state in which a socket is attached to the shelf lower surface from the downward direction. It is the expansion perspective view seen from the lower part which shows the state where the socket was attached to the shelf lower surface (Example 1). It is a partial vertical side view of FIG. It is the expansion perspective view seen from the lower part which shows the state where the socket was attached to the shelf edge part. It is a side view of the illuminating lamp side socket member which shows the illuminating lamp holding | maintenance part as another Example. It is sectional drawing of FIG. It is sectional drawing of FIG. It is an exploded view which shows the heat insulation cylinder holding | maintenance part as another Example. It is a side view which shows the terminal penetration hole as another Example. (Example 2) which is a perspective view of the shelf lower surface in the state where the socket was attached. (Example 2) which is a perspective view of a socket. (Example 2) which is a perspective view of a main body side socket member. (Example 2) which is a perspective view of an illumination light side socket member. FIG. 33 is a partially transparent side view of the socket of FIG. 32 (Example 2). FIG. 33 is a cross-sectional view of FIG. 32 viewed from the left side (Example 2). FIG. 36 is a cross-sectional view of a state where an illumination lamp is attached to FIG. (Example 3) which is a perspective view of the shelf lower surface in the state where the socket was attached. (Example 3) which is an internal see-through | perspective side view of a main body side socket member. (Example 3) which is the top view which looked at the main body side socket member from the downward direction (Example 3) which is the side view seen from the outer side of an illumination light side socket member. (Example 3) which is a partial see-through | perspective side view of a socket. It is internal perspective sectional drawing of the main body side socket member which comprises the socket as another Example. It is the side view seen from the outer side of the illuminating lamp side socket member attached to the main body side socket member of FIG. It is a fragmentary perspective sectional view of a socket. FIG. 5 is an internal perspective sectional view of a main body side socket member constituting a socket as another embodiment, FIG. 4. It is the side view seen from the outer side of the illuminating lamp side socket member attached to the main body side socket member of FIG. It is a fragmentary perspective sectional view of a socket. (Example 4) which is a vertical side view of a main body side socket member. FIG. 50 is a plan view of FIG. 49 as viewed from below (Example 4). (Example 4) which is a front view of a main body side socket member. (Example 4) which is the internal see-through | perspective side view which looked at the illumination light side socket member from the outside. (Example 4) which is the front view which looked at FIG. 52 from the left. FIG. 54 is a cross-sectional view of FIG. 53 (Example 4). FIG. 52 is a plan view of FIG. 52 as viewed from below (Example 4). (Example 4) which is sectional drawing of a socket. It is the schematic explaining the state which attaches a feeder and an illumination lamp to the conventional socket. FIG. 58 is an electrical wiring diagram of FIG. 57.

1 Showcase 5 Display room 8 Shelf 14 Illumination lamp (for under shelf)
14A terminal (for power reception)
16 Lighting (for ceiling)
22, 80, 110, 130, 140, 150 Socket 23, 81, 111, 131, 141, 151 Main body side socket member 24, 82, 112, 132, 142, 152 Illumination lamp side socket member 25, 83, 113, 153 Case 26, 84, 114, 154 Lid member 28 Main body side mounting surface 29, 86, 116, 156, 166 Connection portion 29A, 116A Partition wall 29B Notch 30 Capacitor housing portion 31 Mounting surface engaging portion 32 Reinforcing plate 32A Front wall 33 Holding projection 33A Notch 34 Capacitor 35, 87, 117, 157 Feeding contact piece 36, 118, 159 Feeding line 37 Power supply 39, 120 Insertion part 40, 41, 121, 133, 143, 160, 161 Engaging claw 42 Notch 43 Insulation tube 45 Capacitor housing portion on lid side 46, 95, 122, 155 Fixing portion 4 , 52, 155A Screw hole 48 Ground terminal fixing portion 50 Mounting piece 51, 96, 123 Engagement hole 55, 100, 164 Mounting portion 56, 101 Housing portion 57, 165 Cover portion 58, 63 Illumination lamp holding portion 59 Heat insulation cylinder Holding portion 60, 72, 102, 167 Terminal insertion hole 61 Pressing portion 62 Drain hole 67 End attachment piece 69 Grounding terminal 87A Terminal holding portion 88 Feed line 90 Inserting portion 91 Engaging claw (engaging portion)
92 Operation part 93 Terminal holding part 103 Holding piece 104 Operation part insertion port 105 End face 125,163 Waterproof rubber 134 Engagement part 144 Engagement part 158 Power supply side terminal 168 Power reception side terminal

Claims (1)

In a showcase comprising an illuminating lamp having a terminal at the end,
A socket for connecting the illuminating lamp to the power source of the main body,
The socket is composed of a main body side socket member fixed to the main body side and having a power feeding portion therein, and an illuminating lamp side socket member attached to the illuminating lamp and detachably attached to the main body side socket member,
With the illuminating lamp side socket member attached to the illuminating lamp being attached to the main body side socket member, the terminal of the illuminating lamp is directly connected to the power feeding portion of the main body side socket member or via a conductive member. Electrically connected,
A showcase comprising a waterproof mechanism for watertightly isolating the power feeding unit and the terminal of the illuminating lamp from the outside in a state where the illuminating lamp side socket member is attached to the main body side socket member.