JPH09269188A - Illumination device for display case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change a mount position of a fluorescent lamp, which illuminates a storage chamber, with much ease for adjustment of illumination in the storage chamber by providing a holding means for holding the fluorescent lamp in a display case in such a manner as to change a mount position of the fluorescent lamp vertically. SOLUTION: Shelves 12 in a plurality of stages are mounted on struts 13 on both sides in a storage chamber 8 enclosed by heat insulating walls 2 having a substantially C-shaped cross section in a display case in such a manner that they can be changed in vertical positions, and a front opening of the storage chamber 8 is openably closed by turning type glass doors 14. A fluorescent lamp 17 is mounted in a vertical direction on the strut between a door frame 16 and the glass doors 14 positioned on both sides of the opening of the storage chamber 8. Mounting of the fluorescent lamp 17 is effected by partial-circular shaped clips 26, which constitute holding means fixed at two vertical positions, and a bottom of the fluorescent lamp 17 is usually held by a metallic fitting 36. In the case where illumination is short of the shelf 12 installed at an uppermost position, a holding fitting 31 is mounted to the lower clip 26 to hold the fluorescent lamp 17 at a higher position to have illumination reaching the shelf 12 installed at the uppermost position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase in which fluorescent lamps are installed vertically to illuminate a storage room.

[0002]

2. Description of the Related Art Conventionally, a so-called reach-in type showcase has a sliding door type front opening of a heat insulating wall whose inside is a storage chamber, as disclosed in Japanese Utility Model Publication No. 4-20941 (E05D15 / 06). It is opened and closed freely with the glass door of, and both sides of the opening of this storage room, and
A fluorescent lamp for illuminating the inside of the storage compartment is vertically installed inside the central partition.

A fluorescent lamp is usually constructed by inserting a fluorescent tube into a translucent cylindrical jacket and connecting sockets to both ends of the fluorescent tube. The fluorescent tube is held at the center of the jacket by a spacer. There is. Further, the fluorescent lamp holds the side surface of the jacket with a curved clip fixed to the showcase, and the bottom surface is held by a slip stopper also fixed to the showcase.

[0004]

By the way, since a standard product is usually used as the fluorescent tube, the length of the fluorescent lamp is about 30% shorter than the vertical dimension of the opening of the showcase, and at the time of shipping, it is approximately in the center of the storage chamber. It is attached to illuminate.
Therefore, in the storage room that is above and below the fluorescent lamp,
Darker than other areas.

In this case, the lower part of the storage room becomes relatively bright because the light from the in-store lighting attached to the ceiling of the shop is inserted through the glass door, but the upper part of the storage room is disturbed by the upper edge of the opening. Since the light from the in-store lighting does not shine, it becomes dark and wins.

With the change of the mounting position of the shelf in the storage room,
When the darkness of the upper part becomes a problem at the installation site, the lack of illuminance can be resolved by moving the mounting position of the fluorescent lamp upward. Since it was held by non-slip, in order to change the mounting position of the fluorescent light, remove the shelf etc., once remove the clip and anti-slip,
There was a problem in that it had to be reattached to the upper position, which forced an extremely complicated work.

The present invention has been made in order to solve the above-mentioned conventional technical problems, and in order to adjust the illuminance in the storage room, the mounting position of the fluorescent lamp can be changed extremely easily. The lighting device is provided.

[0008]

The lighting device of the present invention is applied to a showcase in which fluorescent lamps for illuminating the interior of a storage chamber are vertically installed, and the fluorescent lamps are held in the showcase so that the vertical mounting position can be changed. It is provided with a holding means.

According to the present invention, since the holding means for holding the fluorescent lamp in the showcase so that the vertical mounting position can be changed is provided, it is possible to cope with the situation of the showcase installation site or the form of the product display in the storage room. The mounting position of the fluorescent lamp can be arbitrarily changed by the holding means.

Therefore, the illuminance in the storage room can be adjusted very easily, and the product display effect in the storage room can be significantly improved.

In the lighting device for a showcase according to a second aspect of the present invention, in the above description, the holding means is attached to the showcase, and a clip for holding a side surface of the fluorescent lamp and a clip which can be vertically changed in position are attached to the clip. And a holder for holding the bottom surface of the lamp.

According to the invention of claim 2, the holding means of claim 1 is attached to the showcase, and the clip for holding the side surface of the fluorescent lamp and the clip which is vertically changeably attached to the clip are attached to the bottom surface of the fluorescent lamp. Since it is composed of a holding tool for holding, the existing clip can be used, and the vertical mounting position of the fluorescent lamp can be changed only by changing the mounting position of the holding tool to this clip up and down. Therefore, the operability can be improved while suppressing the cost increase to the minimum.

According to a third aspect of the present invention, there is provided the illuminating device for a showcase according to the first aspect, in which the fluorescent lamp includes a fluorescent tube and a jacket that covers the periphery of the fluorescent tube, and the holding means is continuous with the jacket. It comprises a spiral groove and a clip attached to the showcase and slidably engaged with the groove.

According to the third aspect of the present invention, the holding means of the first aspect is provided with a continuous spiral groove formed in a jacket that covers the periphery of the fluorescent tube of the fluorescent lamp, and the groove is attached to the showcase. Since it is composed of a clip slidably engaged with, the upper and lower mounting positions of the fluorescent lamp can be changed steplessly by rotating the jacket, and the operability is further improved. Moreover, since the number of parts can be reduced, the assembling workability is also improved.

In the illuminating device for a showcase according to a fourth aspect of the present invention, the bottom surface of the groove is brought into contact with the periphery of the fluorescent tube.

According to the invention of claim 4, since the bottom surface of the concave groove of the jacket is brought into contact with the periphery of the fluorescent tube, the fluorescent tube can be held at the center of the jacket by the concave groove. It is possible to reduce the number of parts by eliminating the spacer which has been conventionally required.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a showcase 1 of an embodiment, and FIG. 2 is a vertical sectional side view of the showcase 1. The showcase of the embodiment is a low-temperature showcase for refrigeration or refrigeration installed in a store such as a supermarket or a convenience store. It is configured.

A partition plate 4 is provided inside the heat insulating wall 2 with a space therebetween.
Is attached from the back to the top, and the partition plate 4
A bottom plate 6 is attached to the lower end of the. A series of ducts 7 are formed between the partition plate 4 and the bottom plate 6 and the heat insulating wall 2, and a storage chamber 8 opened to the front is formed inside the partition plate 4 and the bottom plate 6.

In the duct 7 below the bottom plate 6, a cooler 9 and a blower 11 included in a cooling device are arranged, and a plurality of shelves 12 ... It is installed on 13 so that the vertical position can be changed. The front opening of the storage chamber 8 is closed by openable glass doors 14, 14. Further, a resin door frame 16 is attached to the opening edge of the storage chamber 8, and a fluorescent lamp 17 is provided on a pillar (not shown) between the door frames 16 and 16 and the glass doors 14 and 14 located on both sides of the opening. Are attached to the top and bottom respectively.

When the blower 11 is operated, the cooler 9
The cold air that has exchanged heat with the air is blown upward in the duct 7 and is discharged into the storage chamber 8 from the discharge port 18 at the front end of the partition plate 4 on the top surface. Then, the cold air that has circulated and cooled in the storage chamber 8 is sucked into the duct 7 through the suction port 19 at the front end of the bottom plate 6.

On the other hand, the fluorescent lamp 17 has a fluorescent tube 21, a tubular jacket 22 made of translucent resin covering the periphery thereof, and sockets 23, 2 connected to the upper and lower ends of the fluorescent tube 21 to supply electric power.
3, the projection 23 at the center of the outer surface of the socket 23, 23.
The lead wire 24 is drawn out from A and 23A. Moreover, the upper and lower ends of the jacket 22 are rotatable only by being inserted into the sockets 23, 23.

On the other hand, reference numeral 26 is a clip constituting a holding means, which is formed of an elastic strip-shaped thin metal plate, has a circular shape as a whole as shown in FIG. 5, and faces outward. It has a mounting portion 26A that is bent in a rectangular shape, and the front portion thereof has an arc shape with an opening. And
The mounting portion 26A is screwed to the door frame 16 (or a support) to fix the clip 26 (in the embodiment, two positions are provided at the upper and lower sides).

Reference numeral 36 is a metal fitting that is attached at the same position as the non-slip member that has been conventionally attached, and is used to position the fluorescent lamp 17 when the showcase 1 is shipped. Is attached to. Then, normally, in this state, the fluorescent lamp 17 is inserted into the inside from the openings of the clips 26, 26 by utilizing its elasticity.

At this time, the clips 26, 26 abut on the periphery of the jacket 22 and hold the side surfaces thereof, and the metal fitting 36 holds the bottom surface of the fluorescent lamp 17. In this state, the fluorescent lamp 17 illuminates substantially the center of the storage chamber 8 in the vertical direction.

Here, the lower part of the storage room 8 becomes relatively bright because the light from the in-store lighting 38 attached to the ceiling 37 of the shop is inserted through the glass doors 14 and 14 as shown in FIG. Since the upper edge of the opening 8 obstructs the upper edge of the opening 8 and the light from the in-store illumination 38 does not enter, the upper portion of the inside 8 is inevitably darkened.

In particular, when the shelf 12 is also installed at the uppermost part in the storage room 8 as shown in FIG. 2, the shelf 12 is much darker than the lower part, and the display effect is significantly reduced. In such a case, before attaching the fluorescent lamp 17 to the clips 26, 26, the holder 31 constituting the holding means is attached to the lower clip 26.

The holder 31 is formed in a rectangular ring shape having upper and lower sides and two left and right sides by bending and welding a wire or the like. Further, the upper portion of the holder 31 has a narrow width whose inner dimension substantially matches the outer dimension of the mounting portion 26A of the clip 26, and an upper end portion thereof is formed with a locking portion 32 bent forward at a right angle. Has been done. In addition, the holder 31
The width of the lower part is gradually enlarged downward, and the lower end is a holding part 33 bent forward at a right angle.

Further, in the narrow width portion below the locking portion 32, projections 34, 34 projecting inward from both sides are provided at positions spaced from the locking portion 32 by a predetermined distance. .

As shown in FIG. 6, the holding tool 31 is inserted in the lower clip 26 between its left and right sides in a state of being laid down in the lateral direction. , 34, the holder 33 is rotated 90 degrees as shown by the arrow to position the holding portion 33 below the clip 26.

At this time, as shown in FIGS. 7 and 8, the engaging portion 32 engages with the upper edge of the clip 26, so that the holder 31 is engaged with the clip 26. Further, the lower holding portion 33 is located above the metal fitting 36 by about 200 mm in the embodiment. When the fluorescent lamp 17 is attached, the clip 2
Similarly, 6 and 26 are in contact with the periphery of the jacket 22 and hold the side surfaces thereof, and the tip of the locking portion 32 of the holder 31 is in contact with the jacket 22 for positioning and holding the holding portion 33.
Contacts the lower surface of the socket 23 at the lower end of the fluorescent lamp 17 and engages with the outer edge of the protrusion 23A to hold the bottom surface of the fluorescent lamp 17 (FIG. 3).

As a result, since the mounting position of the fluorescent lamp 17 is raised by about 200 mm in the embodiment, it is possible to illuminate the commodity on the smallest shelf 12 well.
Further, when it is desired to make it brighter, the holder 31 is moved upward and its elasticity is used to engage the protrusions 34, 34 with the upper edge of the clip 26. As a result, the fluorescent lamp 1
Since the mounting position of 7 is changed further upward (the distance between the locking portion 32 and the protrusion 34, that is, it can be changed in two steps in this embodiment), the lighting effect in the upper part of the storage chamber 8 is further improved. To do.

Incidentally, FIG. 10 shows a holder 31 of another embodiment. In this case, the holder 31 is made of a steel plate or hard resin, the upper end of which is provided with a locking portion 32 that projects forward from the central portion, and the lower end of the holding portion 3 whose inside is open.
3 is formed so as to project forward. In addition, the holder 31
A groove 35 continuous with the opening of the holding portion 33 is formed in the center of the groove 35, and a plurality of protrusions 34 projecting inward are formed on both side edges of the groove 35 at predetermined intervals in the vertical direction. . The inner dimension of the groove 35 substantially matches the outer dimension of the mounting portion 26A of the clip 26, and the distance between the protrusions 34, 34 is smaller than that.

Then, with the clip 26 inserted into the groove 35 and holding the bottom surface of the fluorescent lamp 17 by the holding portion 33, the mounting portion 26 is attached to the upper edge of the groove 35 and the projections 34, 34.
By selectively engaging A, the mounting position of the fluorescent lamp 17 can be changed up and down stepwise.

Next, FIGS. 11 to 15 show another embodiment of the present invention. In each figure, the same reference numerals as those in FIGS. 1 to 10 have the same or similar functions. In this case, a continuous spiral concave groove 42 is formed in the jacket 22, and the bottom surface of the concave groove 42 is in contact with the internal fluorescent tube 21 as shown in FIG. Also,
The lower clip indicated by 41 is formed of, for example, a hard resin, and its cross section is circular, and
As shown in FIG. 3, the whole has an annular shape with a part open. Further, similarly to the clip 26, it has a mounting portion 41A that projects outward in a rectangular shape.

When the fluorescent lamp 17 is attached, the clip 41 is slidably engaged with the groove 42 of the jacket 22 as shown in FIG. Here, the jacket 22 is rotatably inserted into the socket 23 as described above. Therefore, when the jacket 22 is rotated counterclockwise when viewed from above, the fluorescent lamp 17 moves upward while being held by the clip 41, and moves downward when it is rotated in the opposite direction.

Therefore, in this embodiment, the vertical mounting position of the fluorescent lamp 17 can be changed steplessly, and the operability is further improved. Further, the holder is not required and the number of parts can be reduced, so that the assembling workability is also improved.

Further, since the bottom surface of the concave groove 42 of the jacket 22 is brought into contact with the periphery of the fluorescent tube 21, it becomes possible to hold the fluorescent tube 21 at the center of the jacket 22 by the concave groove 42. The required spacer can be eliminated, and the number of parts can be reduced.

[0038]

As described above in detail, according to the present invention, since the holding means for holding the fluorescent lamp in the showcase so that the vertical mounting position can be changed is provided, the situation of the showcase installation site or the inside of the storage room. The mounting position of the fluorescent lamp can be arbitrarily changed by the holding means according to the form of the product display.

Therefore, the illuminance in the storage room can be adjusted very easily, and the product display effect in the storage room can be remarkably improved.

According to the invention of claim 2, the holding means of claim 1 is attached to the showcase, and the clip for holding the side surface of the fluorescent lamp and the clip which is vertically changeable are attached to the bottom surface of the fluorescent lamp. Since it is composed of a holding tool for holding, the existing clip can be used, and the vertical mounting position of the fluorescent lamp can be changed only by changing the mounting position of the holding tool to this clip up and down. Therefore, the operability can be improved while suppressing the cost increase to the minimum.

According to the invention of claim 3, the holding means of claim 1 is provided with a continuous spiral groove formed in a jacket that covers the periphery of the fluorescent tube of the fluorescent lamp, and the groove is attached to the showcase. Since it is composed of a clip slidably engaged with, the upper and lower mounting positions of the fluorescent lamp can be changed steplessly by rotating the jacket, and the operability is further improved. Moreover, since the number of parts can be reduced, the assembling workability is also improved.

According to the invention of claim 4, since the bottom surface of the concave groove of the jacket is brought into contact with the periphery of the fluorescent tube, the fluorescent tube can be held at the center of the jacket by the concave groove. It is possible to reduce the number of parts by eliminating the spacer which has been conventionally required.

[Brief description of drawings]

FIG. 1 is a perspective view of a showcase according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a showcase.

FIG. 3 is a partially cutaway side view of a fluorescent lamp of a showcase.

FIG. 4 is a perspective view of a holder.

FIG. 5 is a plan view of a clip and a holder.

FIG. 6 is a perspective view of a clip and a holder showing a procedure for attaching the holder.

FIG. 7 is a perspective view of the door frame with the holder attached to the clip.

FIG. 8 is a plan view of the clip with a holder attached.

FIG. 9 is a bottom view of the holder and the fluorescent lamp.

FIG. 10 is a perspective view of a holder according to another embodiment.

FIG. 11 is a partially cutaway side view of a fluorescent lamp of a showcase according to another embodiment.

FIG. 12 is an exploded side view of the fluorescent lamp of FIG.

13 is a vertical cross-sectional side view of the fluorescent lamp of FIG.

14 is a plan view of the clip of FIG. 11. FIG.

15 is a rear view of the clip of FIG. 11. FIG.

[Explanation of symbols]

 1 Showcase 2 Heat Insulation Wall 8 Storage Room 12 Shelf 14 Glass Door 16 Door Frame 17 Fluorescent Lamp 21 Fluorescent Tube 22 Jacket 23 Socket 26, 41 Clip 31 Holding Tool 32 Locking Part 33 Holding Part 34 Projecting Part 42 Recessed Groove

Claims (4)

[Claims] 1. A showcase in which a fluorescent lamp for illuminating the inside of a storage room is vertically installed, and a holding means for holding the fluorescent lamp in the showcase so that a vertical mounting position can be changed. Lighting device for the case. 2. The holding means comprises a clip which is attached to the showcase and holds the side surface of the fluorescent lamp, and a holder which is attached to the clip such that the vertical position can be changed and holds the bottom surface of the fluorescent lamp. Claim 1 characterized by the above-mentioned.
Showcase lighting system. 3. The fluorescent lamp comprises a fluorescent tube and a jacket covering the circumference of the fluorescent tube, and the holding means is provided with a continuous spiral groove formed in the jacket and attached to a showcase. The lighting device for a showcase according to claim 1, further comprising a clip slidably engaged with the groove. 4. The lighting device for a showcase according to claim 3, wherein the bottom surface of the groove is in contact with the periphery of the fluorescent tube.