JP2007215572A - Showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a showcase allowing a power-receiving terminal pin of an illuminating lamp to be securely attached to a socket by a simple structure, and capable of preventing inconvenience caused by the defective contact. <P>SOLUTION: In the showcase 1, the illuminating lamp 14 with power-receiving terminal pins 14A at both ends is attached to the lower surface of a shelf 8 by a pair of clips 23. The showcase 1 includes a pair of sockets 22 attached to both ends of the illuminating lamp 14 to be electrically connected to the terminal pins 14A. Each socket 22 has an engagement part 27 in such a shape as can be detachably engaged with the clip 23. Each clip 23 is attached at a prescribed position on the lower surface of the shelf 8, and can be engaged with the engagement part 27 of each socket 22 while the socket 22 is normally connected to each terminal pin 14A of the illuminating lamp 14. <P>COPYRIGHT: (C)2007,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 illuminating lamp is electrically connected to a power source installed in the machine room via a socket to which a feeder line is connected. The illuminating lamp electrically connected to the power supply line through the socket is fixed by being sandwiched between a shelf bottom surface, a display room ceiling surface, a clip fixed to the canopy, or the like. In particular, in low-temperature showcases that are used by cooling the inside of the showcase, in order to suppress the decrease in illuminance due to the temperature dependence of the lighting lamps such as fluorescent lamps and the adverse effects on the display room due to the heat of the lighting lamps, A heat insulating cylinder is attached to surround the surroundings. In this case, after the socket is attached to one end of the illuminating lamp, the heat insulating cylinder is attached to surround the illuminating lamp, and the socket is attached to the other end of the illuminating lamp. And the clip attached to the main body side fixes the illuminating lamp to the main body by sandwiching the heat insulating cylinder to which the illuminating lamp is attached (see Patent Document 1).
JP-A-7-143828

  In the case described above, the terminal pin for receiving power of the illuminating lamp is electrically connected to a charging unit provided in the socket when the illuminating lamp is fitted into the socket. In addition, the power supply line connected to the charging part of the socket is designed so that the power supply line keeps a predetermined slack in consideration of the workability of attaching and detaching the lamp. It is fixed in the vicinity. Therefore, the socket is attached to the end portion of the illuminating lamp in a free state, and the socket is easily detached from the end portion of the illuminating lamp when the engagement force between the socket and the illuminating lamp decreases due to repeated use. Thus, there is a problem that poor contact between the power receiving terminal pin and the socket-side charging unit occurs. In addition, depending on the worker, the socket may not be sufficiently and securely attached to the end portion of the illuminating lamp, and even in such a case, poor contact between the power receiving terminal pin and the charging portion on the socket side occurs. There was a problem.

  Such poor contact leads to inconvenience that lighting of the lighting 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 socket may be burned out. there were.

  In addition, whether or not such a power receiving terminal pin is securely connected to the socket-side charging unit is generally performed by detecting a contact failure of the electronic ballast.

  Therefore, the present invention has been made to solve the conventional technical problem, and it is possible to reliably attach the power receiving terminal pin of the illuminating lamp to the socket with a simple configuration, and to prevent inconvenience due to poor contact. Provide a showcase that can be avoided.

  The showcase of the present invention is constructed by attaching an illuminating lamp having power receiving terminal pins at both ends to a main body with a pair of clips, which are respectively attached to both ends of the illuminating lamp and electrically connected to the terminal pins. Each socket has a pair of power feeding sockets to be connected. Each socket has an engaging portion in which the clip is detachably engageable. Each clip is attached to a predetermined position of the main body. Each clip can be engaged with an engaging portion of each power supply socket in a state of being normally connected to each terminal pin of the illuminating lamp.

  According to the invention, in a showcase in which an illuminating lamp having power receiving terminal pins at both ends is attached to the main body by a pair of clips, the illuminating lamp is mounted on both ends of the illuminating lamp and electrically connected to the terminal pins. Each of the sockets has a pair of power supply sockets, each socket having an engaging portion in which the clip is detachably engageable, each clip is attached to a predetermined position of the main body, and each power supply socket is an illuminating lamp. When each clip is engaged with the engaging part of each power supply socket with each terminal pin properly connected, the terminal pin of the illuminating lamp is not normally attached to the power supply socket. Therefore, the socket cannot be held by the clip, and the operator can recognize that the terminal pin of the illumination lamp is not properly attached. Accordingly, it is possible to promptly attach the terminal pin of the illuminating lamp to the power feeding socket, and it becomes possible to attach the illuminating lamp in a state where the terminal pin of the illuminating lamp is securely attached to the power feeding socket. .

  The contact failure between the terminal pin of the illuminating lamp and the power supply socket can be avoided in advance, the inconvenience that the lighting of the illuminating lamp is not reliably performed, and the terminal pin for receiving power rises to an abnormal temperature, It is possible to avoid the disadvantage that the terminal pins and sockets are burned out.

  Hereinafter, a showcase to which the present invention is applied 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 each mounting member of the illuminating lamp 14, and FIG. Is a front view showing the mounting state of the illuminating lamp, FIG. 5 is a plan view showing the mounting state of the illuminating lamp, FIG. 6 is a side view showing the mounting state of the illuminating lamp, and FIG. 8 is a front view of the clip 23, and FIG. 9 is a plan view of the clip 23.

  The 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 to both sides of a heat insulating wall 2 having a substantially U-shaped cross section. 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. A price rail 8 A is attached to the front end of the shelf 8.

  Further, as will be described in detail later, a product on the shelf 8 installed on the lower side by a power supply socket 22 and a clip 23 and an illumination lamp 14 for illuminating the front of the display room 5 are attached to and detached from the lower surface of the shelf 8. It is attached freely.

  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. The illuminating lamps 14 and 16 are provided with a terminal 14A for receiving power at their ends, and can be turned on by power feeding from a charging unit, 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, with reference to FIG. 3 thru | or FIG. 9, the attachment mechanism of the illuminating lamp 14 which concerns on this invention is demonstrated. The illuminating lamp 14 in the present embodiment has power receiving terminal pins 14A and 14A at both ends, and extends in the longitudinal direction. The illuminating lamp 14 is detachably attached to the lower surface of the shelf 8 by a pair of power feeding sockets 22 and a pair of clips 23 that attach the socket 22 to the main body side, in this embodiment, the lower surface of the shelf 8.

  The socket 22 is formed of a hard synthetic resin, and includes a holding portion 25 attached to an end portion of the illuminating lamp 14, a flange portion 26 formed to protrude outward from the outer edge of the holding portion 25, It is comprised from the engaging part 27 formed in the outer side of the collar part 26. As shown in FIG.

  The holding portion 25 is formed in a cylindrical shape surrounding the end portion of the illuminating lamp 14, and the inner diameter of the cylindrical portion allows the end portion of the illuminating lamp 14 to enter and engage substantially tightly. The outer diameter of the cylinder can be engaged with the inner diameter of the heat insulating cylinder 30 almost exactly.

  Here, the heat insulating cylinder 30 is a transparent cylindrical member made of a hard synthetic resin that surrounds the periphery of the illuminating lamp 14 in the longitudinal direction, and has a function of heat cutting between the illuminating lamp 14 and the inside of the display chamber 5. Is. That is, the heat of the illuminating lamp 14 is prevented from adversely affecting the products in the display room 5, and the illuminating lamp 14 itself is cooled by the cool air in the display room 5, thereby preventing the illuminance from being lowered. To do.

  The engaging portion 27 formed on the outer side of the collar portion 26 accommodates a power supply contact piece as a charging portion (not shown) inside, and the power supply contact piece enters the illumination lamp 14 that has entered from the holding portion 25. The terminal pin 14A can be electrically connected. The power supply line 28 connected to the power supply contact piece is drawn out from the upper surface of the engaging portion 27.

  Further, the outer shape of the joint portion 27 in the present embodiment has a substantially circular cross section at the lower portion and a rectangular shape whose upper portion is smaller than the substantially circular diameter of the lower portion, and these are configured continuously. Thus, the shape is constricted in the middle. The constriction has a shape in which a clip 23 described later can be detachably engaged.

  On the other hand, the clip 23 is configured integrally with a fixing portion 31 and an elastic clamping portion 32. The fixing portion 31 is configured substantially horizontally with respect to the mounting surface of the illuminating lamp 14, that is, the mounting surface of the shelf 8 and the canopy 15, and a plurality of mounting holes 31 </ b> A are formed in the fixing portion 31. Yes.

  And the clamping part 32 is comprised by two clamping pieces 32A and 32A formed by drooping from the front end and rear end of the edge part located in the outer side of the fixing | fixed part 31, as FIG. 7 shows. . The sandwiching pieces 32A and 32A are bent in the direction of being separated from each other and positioned in the middle, and then bent in the direction of approaching each other, and the lower ends thereof are bent again in the direction of separating from each other. . As a result, the sandwiching portion 32 can be configured such that the sandwiching pieces 32A and 32A always have an inward biasing force, and the engaging portion 27 is detachably engaged between the sandwiching pieces 32A and 32A. An engaging portion holding space that can be stopped is formed.

  The clip 23 as described above is fixed to the mounting position of the illuminating lamp 14, that is, the lower surface of the shelf 8 with a screw or the like in advance. Here, the clip 23 includes the engaging portions 27 of the sockets 22 and 22 in a state in which the power receiving terminal pins 14A and 14A are normally electrically connected to each other. It is assumed that each is fixed at a preset mounting position so as to come to position 27.

  The mounting method of the illuminating lamp 14 is demonstrated by the above structure. First, the holding portions 25 of the socket 22 are attached to both ends of the illuminating lamp 14. At this time, the terminal pin 14 </ b> A for receiving power of the illuminating lamp 14 enters the engaging portion 27 formed outside the holding portion 25, and is electrically connected to the feeding contact piece attached in the engaging portion 27. Connected.

  Further, since the inner diameter dimension of the holding portion 25 is configured to be capable of holding the illuminating lamp 14 almost exactly, the socket 22 is attached to the socket 22 by mounting the illuminating lamp 14 in the holding portion 25. It will be held at the end of the illuminating lamp 14.

  In addition, the heat insulation cylinder 30 is attached from the edge part side of the illuminating lamp 14 in which one socket 22 is attached to the illuminating lamp 14, and the socket 22 is not yet attached. In this case, since the holding portion 25 of the socket 22 has an outer diameter that is smaller than the inner diameter dimension of the heat retaining cylinder 30, the heat retaining cylinder 30 is inserted into the end portion of the heat retaining cylinder 30 and the socket 22 is inserted into the socket 22. It becomes possible to hold at. In such a case, the end of the heat retaining cylinder 30 can be inserted until it comes into contact with the flange portion 26 protruding outward from the outer edge of the holding portion 25.

  Thereafter, the other socket 22 is similarly attached to the other end of the illuminating lamp 14 and the other end of the heat retaining tube 30 in a state where the heat retaining tube 30 is retained by the one socket 22. Thereby, the terminal pins 14A and 14A provided at both ends of the illuminating lamp 14 are both electrically connected to the power supply provided in the main body of the showcase 1 through the power supply contact piece and the power supply line provided in the socket 22. The Rukoto. Further, similarly to the illuminating lamp 14, the heat insulating cylinder 30 surrounding the illuminating lamp 14 is fixed by the sockets 22 and 22.

  Then, with the sockets 22, 22 attached to the end portions of the lighting lamp 14 and the heat insulating cylinder 30, they are applied to the clips 23, 23 attached in advance to the bottom surface of the shelf 8, the ceiling surface of the display chamber 5, or the mounting surface of the canopy 15. . The engaging portion 27 of the socket 22 is inserted into the holding portion 32 of the clip 23 from below, and the engaging portion 27 is accommodated in the engaging portion holding space formed between the holding pieces 32A and 32A of the holding portion 32. .

  At this time, since each holding piece 32A is made of an elastic material, the engaging portion 27 of the socket 22 can be easily inserted while separating each holding piece 32A. Since the urging force always acts inward, the engaging portion 27 can be reliably held. In addition, since the engaging portion 27 is also shaped to have a constriction in the middle, the engaging portion 27 can be easily held by the clip 23. Thus, the illumination lamp 14 is mounted in the display chamber 5 by engaging the engaging portions 27 of the sockets 22 attached to both ends of the illumination lamp 14 with the clamping portions 32 of the clip 23.

  Here, as described above, the clip 23 is an engagement of the sockets 22 and 22 in a state in which the power receiving terminal pins 14A and 14A in which the holding portions 32 are provided at both ends of the illuminating lamp 14 are normally electrically connected. They are respectively fixed at preset mounting positions so as to come to the positions of the joint portions 27 and 27.

  Therefore, when either one or both sockets 22 are not normally attached to the illuminating lamp 14, the positions of both sockets 22 are more relative to the center position of the illuminating lamp 14 than when it is normal (regular position). It will shift outward. Accordingly, when applied to the clip 23 in that state, one clip 23 corresponds to the engaging portion 27 of the one socket 22 and the other clip 23 is positioned inside the engaging portion 27 of the other socket 22. However, it hits the collar 26 and cannot be engaged.

  Thereby, when both the sockets 22 attached to both ends of the illuminating lamp 14 are not normally attached, the clips 23 cannot be attached to the engaging portions 27 of the both sockets 22. Since it can be found that the socket 22 is not securely attached to the illuminating lamp 14, the occurrence of a failure can be avoided in advance.

  Then, it is possible to prompt the operator to normally attach the socket 22 to the end portion of the illuminating lamp 14 and to normally electrically connect the terminal pin 14 </ b> A of the illuminating lamp 14 to the power supply contact piece in the socket 22. Thereby, it becomes possible to attach the illuminating lamp 14 with the terminal pin 14 </ b> A of the illuminating lamp 14 being securely attached to the socket 22.

  Therefore, it becomes possible to avoid a contact failure between the terminal pin 14A of the illuminating lamp 14 and the feeding contact piece provided in the engaging portion 27 of the socket 22, and the reliability is improved. Further, it is possible to avoid the disadvantage that the lighting lamp 14 is not reliably turned on and the disadvantage that the terminal pin 14A rises to an abnormal temperature and the terminal pin 14A and the socket 22 are burned out. Become.

  In addition, in the said Example, although each socket 22 and each clip 23 were explained in full detail as what is used for the attachment of the illuminating lamp 14 attached to the shelf 8 lower surface, on this side, on the attachment surface of the canopy 15 Similarly, the illuminating lamp 16 to be attached can be reliably attached in a normal state by the sockets 22 and the clips 23.

It is a perspective view of a low-temperature showcase. It is a schematic longitudinal side view of a low-temperature showcase. It is a perspective view of each attachment member of an illuminating lamp. It is a front view which shows the attachment state of an illuminating lamp. It is a top view which shows the attachment state of an illuminating lamp. It is a side view which shows the attachment state of an illuminating lamp. It is sectional drawing of a clip. It is a front view of a clip. It is a top view of a clip.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Low-temperature showcase 5 Display room 8 Shelf 14, 16 Illumination lamp 15 Canopy 22 Socket 23 Clip 25 Holding part 26 Hook part 27 Engagement part 28 Power supply line 30 Heat insulation cylinder 31 Fixing part 32 Holding part 32A Holding piece

Claims (1)

In a showcase in which an illuminating lamp having terminal pins for receiving power at both ends is attached to the main body with a pair of clips,
A pair of power supply sockets respectively attached to both ends of the illuminating lamp and electrically connected to the terminal pins;
Each socket has an engaging portion in a shape that allows the clip to be detachably engaged,
Each clip is attached to a predetermined position of the main body, and each clip is engaged with each power supply socket in a state where each power supply socket is normally connected to each terminal pin of the illuminating lamp. A showcase that can be engaged with a section.

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