JPH0544703Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention belongs] This invention is formed at the upper front end of a main body case having a U-shaped cross section and having an opening for taking out products on the front side.
The present invention relates to a wiring duct for a show case in which electrical components and wiring are housed.

[Prior art and its problems]

FIG. 3 shows a so-called reach-in type case that has a door 2 at the front opening 1a of a main case 1 having a substantially U-shaped cross section. The door 2 has a large glass window, and a heater is attached to the door to prevent dew condensation on the glass window. On the other hand, in the main body case 1, a fan 6 and a cooler 7 are disposed within a cold air circulation path 5 formed between an outer box 3 and an inner box 4 that constitute the main body case 1. Also, the inside of the inner box 4 is the chamber interior 8.
There are shelves 9 arranged in multiple levels above and below, and fluorescent lamps (not shown) for illuminating the interior of the refrigerator are installed at both front sides of the interior.

In the above case, air inside the refrigerator is sucked into the cold air circulation path 5 from the suction port 5a by the fan 6,
The air is cooled by the cooler 7 and sent in the direction of the arrow, forming a cold air curtain from the outlet 5b to the outlet opening 1a and along the door 2, and cooling the inside 8 of the refrigerator.

A wiring duct 10 is provided at the upper front end of the main body case 1 . As shown in FIGS. 4 and 5, the wiring ducts 10 are provided in plural numbers in the longitudinal direction on the front surface of the outer box 3, and are connected to U-shaped brackets 12 fixed by screw members 11a. The U-shaped duct case 13 is covered with the screw member 11b and fixed, and the outer box 3 is placed inside the U-shaped duct case 13.
A small chamber 14 is formed extending along the longitudinal direction. In the small chamber 14, a lead wire 15 of the heater is guided through the hinge 2a of the door 2.
In addition, the lead wire 15 of the fluorescent lamp is wired, and furthermore, a ballast for the fluorescent lamp and the like are provided. Reference numeral 16 denotes a blinding plate that hangs down above the show case when it is installed, and prevents the rear part from being exposed to the customer's eyes.

By the way, in conventional wiring ducts, in order to remove and remove the duct case 13 during maintenance to inspect wiring, etc., the screw member 11b is located behind the blinding plate 16, so the blinding plate 16 must be attached and detached, which requires maintenance work. Moreover, as shown in FIG. 6, when the duct case 13 is attached, the lead wire 15 is inserted between the bracket 12 and the duct case 13 by the screw member 11b that is screwed into the bracket 12. I was worried about getting hurt.

[Purpose of invention]

The purpose of this invention is to provide a wiring duct for a housing case that facilitates maintenance work on the housing case and does not cause damage to the wires housed therein.

[Key points of the idea]

This idea consists of a duct case that has a U-shaped cross section and is fixed to the main case with the opening facing forward, and a duct cover that is detachably fixed to the opening of the case. The wiring can be inspected simply by attaching and removing the cover, and the wiring is not damaged.

[Example of idea]

1 and 2 show an embodiment of this invention, and parts common or identical to those in FIGS. 3 to 5 are designated by the same reference numerals.

In Figures 1 and 2, duct case 1
3 is formed into a substantially U-shaped cross section, and the opening side edge is bent inward to form a locking piece 13a.
This duct case 13 is fixed to the front surface of the outer box 3 by screw members 11 with the opening facing forward.
form 4. A duct cover 18 is made of flexible plastic and has a pair of protrusions 18a each having a claw 18b at the tip thereof, which protrudes from the back surface with the claws 18b facing each other. This duct cover 18 connects the projecting piece 18a to the duct case 1.
The push-in claw 18b is engaged with the locking piece 13a in the opening of No. 3 to be fixed to the duct case 13, forming the front wall of the small chamber 14 and closing the opening. When opening the duct case 13, the duct cover 18 can be pulled forward from both ends in order by pulling the claws 18b off the locking pieces 13a, or the duct cover 18 can be moved laterally as it is. It can be easily opened by sliding and pulling it out. It is also possible to provide a recess in the upper front edge of the main body case 1 and store the duct case 13 there.

In the above-mentioned configuration, when performing maintenance on the show case, only the duct cover 18 is removed and the blinding plate 16 is left in place, and the electrical components housed in the small room 14, such as the lead wire 15 and the ballast, are inspected and maintained. be exposed. Further, after confirming that the lead wire 15 and the like are properly accommodated in the small chamber 14, the duct cover 18 is attached. Therefore, there is no fear that the lead wire 15 will be pinched or damaged.

[Effect of idea]

According to this invention, the duct case has a U-shaped cross section and is fixed to the main body case with the opening facing forward, and a duct cover is detachably fixed to the opening of the case. Therefore, it is possible to inspect the wiring and electrical components inside the wiring duct simply by removing and removing the duct cover, making maintenance work on the show case extremely easy and quick. Since the duct can be closed after checking the condition, the risk of wiring being damaged during storage is completely eliminated.

In addition, since the duct cover can be easily installed and removed, the duct case can be easily adjusted vertically by slightly loosening the screw member 11, and when the duct cases are connected, it is possible to match the vertical levels of the duct cases. It's extremely easy to do.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a wiring duct showing an embodiment of this invention, Fig. 2 is a perspective view of the same wiring duct, Fig. 3 is a sectional view of a reach-in type show case to which this invention is applied, and Fig. 4 is a conventional one. FIG. 5 is a perspective view showing the inside of the wiring duct, and FIG. 6 is a sectional view showing a defective state. 1...Body case, 3...Outer box, 10...Wiring duct, 13...Duct case, 15...Lead wire, 18...Duct cover, 18a...Protrusion piece, 1
8b...Claws.

Claims (1)

[Scope of utility model registration request] In the wiring duct of the case, which extends in the longitudinal direction and is provided at the upper front end of the main body case, which has an opening on the front and has an approximately U-shaped cross section, the wiring duct has a U-shaped cross section, and the edge of the opening is turned inward. A duct case is formed by bending to form a locking piece and is fixed to the main case with the opening surface facing forward, and the duct case is removably fixed to the opening surface of the case and is made of flexible plastic. 1. A wiring duct for a show case, comprising a duct cover and a duct cover from which a protruding piece having a claw at the tip protrudes from the back surface of the duct cover.