JPH07270060A - Control box lid supporting structure for showcase - Google Patents

Abstract

PURPOSE:To make maintenance work quickly effected by a method wherein a lid, covering the opening of a control box, is opened and closed quickly and easily upon maintenance works such as trial running, adjusting and the like which are effected by operating control instruments in the control box, supported by a case accommodating control equipments including the control instruments controlling various electronic and electrical equipments including instruments constituting a refrigerating machine, refrigerating or freezing to store commodities displayed and shown therein and whose one surface of the outer peripheral surfaces is opened. CONSTITUTION:The lower end of rear end of a lid 20a is supported pivotably by the lower end of rear end of a control box 18a through a pivoting shaft constituted of a stepped screw 33 and the lower end of fore end of the lid 20a is clamped to the lower end of fore end of the control box 18a through a screw 19 while the lid 20a can be opened and closed by pivoting it by removing the screw 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various electronic / electrical devices including a device that constitutes a refrigerator for refrigerating or freezing the products displayed in the interior and cooling the inside of a case with one outer peripheral surface opening. The present invention relates to a control box lid support structure for a showcase, which is capable of opening and closing an opening of a box-shaped control box which is supported by the case and has one surface opened, which has a control device to be controlled.

[0002]

2. Description of the Related Art In a showcase having a case in which one of the outer peripheral surfaces is stored for refrigerating or freezing the products displayed in the interior, a blower, an evaporator, or the like, which is a component of a refrigerator for cooling the inside of the case. Are generally arranged in the case. The components of the refrigerator such as a condenser, a blower, and a compressor are separately arranged under the case or at a place away from the case. A control box containing a control device including an operation device for operating and controlling various electronic / electrical devices including the devices constituting the refrigerator is supported by the case under the case. In such a showcase, the case is often supported by being supported from below by a forklift or the like, and it is necessary to consider so that the control box supported on the lower surface of the case is not damaged during the transportation.

Therefore, in order not to project from the outer peripheral surface,
In addition, the control box, which has a rectangular cross section and a rectangular box shape, has a rectangular cross section and the longitudinal direction is the front and rear direction of the case so that the operation device can be operated through the top opening. It is supported in a pull-out manner so that it can be moved back and forth at either the left or right end. Then, after the showcase is installed on the installation surface, when performing maintenance work such as trial run and adjustment, the operation device is operated through the upper opening of the control box pulled out to the front. FIG. 4 shows a conventional control box lid support structure for a showcase. FIG. 4 shows the structure of a conventional control box lid support structure for a showcase,
(A) is a left-side vertical cross-sectional view, (B) is a perspective view of a main part seen from the front upper left of (A), and (C) is an enlarged perspective view of the control box of (A) seen from the upper right rear. , (D) is an enlarged front vertical cross-sectional view of the main part of the lower left rear end of (C), and the right side of the figures is the front side in (A) and (D).

In FIG. 4, reference numeral 1 denotes a case having an opening 2 which is largely opened and opens on the upper surface. This case 1
Is a case main body 3 having a substantially U-shaped side cross-section, which is formed by a heat insulating wall with both left and right side surfaces and an upper surface opened, and is supported along the inner peripheral surface of the case main body 3 at a distance. It is composed of a substantially U-shaped partition wall 4 and side plates 5 that cover the case body 3 and the left and right side surfaces of the partition wall 4.

A space in the case 1 surrounded by the side plate 5, the partition wall 4 and the case body 3 forms an air passage 6, and the air passage 6 is formed at both ends of the air passage 6 along both front and rear edges of the opening 2. The openings which are open and whose opening faces face each other in the front-back direction form a suction port 7 and a blow-out port 8, respectively. The front opening surface of the blowout port 8 is a honeycomb-shaped rectifying body 9 having front and rear surfaces open, and the rear opening surface of the suction port 7 is a suction hole in which a large number of ventilation holes (not shown) are formed side by side. Each is covered with a mouth cover 10. In addition, a refrigerator 1 for cooling the inside of the case 1 is provided at the lower part on the depth side in the ventilation passage 6.
1, an evaporator 12, a blower 13 for blowing the air in the case 1 to the evaporator 12, and an electric heater 14 arranged between the blower 13 and the evaporator 12. Is provided.

On the other hand, below the left end of the case 1 installed on the installation surface via the frame-shaped legs 15, the blower 13 and the heater 1 are provided.
A control box 18 having a built-in control device 17 including an operation device 16 for controlling various electronic / electrical devices including the electronic / electrical devices including the refrigerator 11 such as 4 and forming a control circuit (not shown) and having an open top surface. Is provided. This control box 18
The upper opening of the control box 18 is detachably supported on the control box 18 by screwing the lower ends of the front and rear ends to the lower ends of the front and rear ends of the control box 18 from both left and right sides, respectively. It is covered with a lid 20.

The control box 18 has a rectangular box shape whose cross section is long in the front-rear direction. The control box 18 has its upper end fixed to the lower surface of the left end of the case 1, and the upper opening is covered by the bottom surface of the case body 3. It is inserted into a box-shaped support body 21 having an open upper surface and a front surface, and is supported below the left end of the case 1 so as to be movable back and forth. In the control box 18, the control box 18
The control device 17 including the operation device 16 does not protrude from the outer peripheral surface of the control box 18 and is installed so that the operation device 16 can be operated through the upper opening of the control box 18. An electric wire 22 connecting between various electronic and electric devices in the case 1 is drawn out from the inside of the control box 18.

The front surface of the case 1 has an inverted vertical U-side cross section.
It is covered with a front cap 23, a color band 24, a bumper rail 25, a front panel 26, a kick plate 27, and the like, which are in the shape of a letter, a plate, or a U-shape in order from the top. At the left end of the kick plate 27, the kick plate 27 is openably and closably covered by a shield plate 29 whose lower end is rotatably supported by a rotary shaft 28 whose axis length direction is horizontal to the left and right. A horizontally long rectangular window 30 is formed therethrough.

In the conventional control box lid support structure for a showcase constructed as described above, after the showcase is installed on its installation surface, maintenance work such as trial run and adjustment is performed by the operating device 1.
6 is operated, the control box 18 is pulled out forward through the window 30 opened by opening the shielding plate 29. At this time, the electric wire 22 drawn out from the control box 18 must be drawn out within a range where it is not pulled and broken.
Although it cannot be pulled out from the case 1 and completely pulled out from the inside of the case 1, it is carried out through the upper opening of the control box 18 which is opened by loosening the pull-out screw 19 of the control box 18 and removing the lid 20.

Further, in the blower 13, the suction port 7 is passed to the ventilation path 6
The air in the case 1 sucked into the inside is cooled by the evaporator 12 and becomes cold air, and a part of the air is rectified by the rectifying body 9 to form a laminar flow, which is blown out from the air outlet 8 and covers the opening 2.
1 is formed and the inside of the case 1 is kept cool. Then, the other part flows into the case 1 through a ventilation hole (not shown) formed in the partition wall 4, cools the inside of the case 1, and is sucked again from the suction port 7 to circulate in the case 1. The circulating flow 32 cools and keeps the products displayed in the case 1 cool.

[0011]

By the way, in such a conventional control box lid support structure for a showcase, a lid 20 for covering the upper surface opening of the control box 18 supported in a pull-out manner below the left end of the case 1 is provided. Control box 18 with screws 19 at the four corners of lid 20
It is a structure that is screwed to and supported. And control box 1
A control device 17 including the operation device 16 is arranged and built in the control box 18 so as not to project from the outer peripheral surface and to be able to operate the operation device 16 through the upper opening in the control box 18. A control device 17 inside and an electric wire 2 connecting between various electronic and electric devices inside the case 1
2 is pulled out from the inside of the control box 18.

As a result, the case 1 in which the front panel 26, kick plate 27, etc. are not yet attached
When the vehicle is supported by a forklift (not shown) from below and is transported, even if the width of the case 1 is narrow, the control box 18 is damaged by the forks of the forklift coming into contact with or being caught by the control box 18. The case 1 can be carried without the need.

However, after the showcase is installed on the installation surface, the shield plate 29 is opened when performing maintenance work such as trial run and adjustment by operating the operation device 16 through the upper opening of the control box 18. Open the window 30 and open this window 30
The control box 18 is pulled out through. At this time, case 1
Since the electric wires 22 connecting the various electronic and electric devices in the inside must be pulled out within a range where they are not pulled and broken, the control box 18 cannot be completely extracted from the inside of the case 1 and the four corners are controlled. The lid 20 must be removed by loosening all the screws 19 which are screwed to the four corners of the box 18.

Therefore, it takes time and effort to operate the operating device 16 through the upper opening of the control box 18, and
When removing the lid 20, a tool such as a screwdriver for loosening the screw 19 is required, and the work of loosening the screw 19 with this tool is very difficult because the control box 18 cannot be completely removed from the case 1. There is. This invention
An object of the present invention is to provide a control box lid support structure for a showcase that allows easy maintenance work, in which the lid can be opened quickly and the opening of the control box can be opened for quick test operation, adjustment, and the like.

[0015]

In order to solve the above-mentioned problems, according to the present invention, a refrigerator for refrigerating or freezing-storing the products displayed in the inside and cooling the inside of a case having one outer peripheral surface opened is constructed. Equipped with a control box that has a control device that operates and controls various electronic and electric devices including devices and is supported by the case and has an opening on one side. A lid that covers the opening of the control box is supported by the control box so that it can be opened and closed. In the control box lid support structure for a showcase, one end of the lid is rotatably supported on one end of the control box.

Further, it is assumed that the lid whose one end is rotatably supported by one end of the control box is the lid whose other end is fastened to the control box with a screw. Also, a lid rotatably supported at one end of the control box and a protrusion at the other end of the control box are formed so as to project from this one toward the other, and the protrusion is fitted to the other. It is assumed that a mating part is formed.

Further, it is assumed that the lid is one whose one end is rotatably supported by one end of the control box via a rotation shaft. Further, it is assumed that the rotating shaft is a rotating shaft composed of stepped screws.

[0018]

According to the present invention, with the above-mentioned structure, the end of the control box on the side opposite to the outer side of the case is rotatably supported on the same side, so that the case can be completely removed from the inside of the case through the window. Even if it is a control box that can not be pulled out and the case outer surface side end of the lid is screwed to the control box with a screw, this screw can be easily loosened by using a tool such as a screwdriver, and by removing the screw, The opening of the control box can be quickly opened and closed by rotating the lid.

Even if the control box cannot be completely removed from the case through the window, the screw of the control box can be easily loosened and removed by using a tool such as a screwdriver, and the lid can be rotated to quickly open the control box. Can be opened and closed. Further, by forming a fitting portion such as a hole or a recess that can be fitted and removed by deforming the lid within the elastic limit of the material forming the lid and a protrusion, the protrusion is removed from the fitting portion and the lid is rotated. The opening of the control box can be opened and closed without any trouble.

Further, by supporting the end of the same side of the lid on the end of the control box on the side opposite to the outer surface side of the case via a rotary shaft, the cover is completely removed from the case through the window. Even with a control box that cannot be taken out, the opening of the control box can be opened and closed quickly by loosening the screw using a tool such as a screwdriver and easily removing it or by removing the protrusion from the fitting part and rotating the lid. .

Further, the end on the same side of the lid is rotatably supported on the end of the control box on the side opposite to the outer surface side of the case through the stepped screw which constitutes the rotation axis, so that the window is passed through. Even if the control box cannot be completely removed from the case, use a tool such as a screwdriver to loosen the screw to remove it easily or remove the protrusion from the fitting part, and rotate the lid to rotate the control box. The opening can be opened and closed quickly, and when the lid needs to be removed, the lid can be removed by loosening and removing the stepped screw.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows the structure of a control box lid support structure for a showcase according to one embodiment of the present invention, (A).
Is a perspective view of the control box whose top opening is covered with a lid, as viewed from the rear upper right, (B) is an enlarged front vertical cross-sectional view of the main part of the right rear end portion of (A), and (C) is (A). FIG. 4B is an enlarged front vertical cross-sectional view of the main part of the right front end of FIG. FIG. 2 shows the structure of a control box lid support structure for a showcase according to another embodiment of the present invention, in which (A) is a perspective view of the control box whose top opening is covered with a lid, as viewed from the rear upper right.
(B) is an enlarged front longitudinal cross-sectional view of the main part of the right rear end portion of (A),
(C) is an enlarged front vertical cross-sectional view of the main part of the right front end of (A),
In (B) and (C), the right side of the drawing is the front side. Further, FIG. 3 shows a configuration of a showcase to which the present invention is applied. (A) is a left-side longitudinal sectional view, (B) is a perspective view of a main part as seen from the front upper left of (A), (A) The right side of the figure is the front side. It should be noted that parts common or identical to those in FIG. 4 are denoted by the same reference numerals, and description thereof may be omitted.

In FIGS. 1 and 3, reference numeral 1 denotes a case having a large opening and an opening 2 opening on the upper surface. The case 1 is formed by a case body 3, a partition wall 4, and both left and right sides of the case body 3 and the partition wall 4. The side plate 5 covers the surface. A space inside the case 1 surrounded by the side plate 5, the partition wall 4 and the case body 3 forms an air passage 6, and openings at both ends of the air passage 6 form an intake port 7 and an air outlet 8, respectively. . The forward opening surface of the air outlet 8 is a rectifying body 9
In addition, the rear opening face of the suction port 7 is provided with a suction port cover 10
In the lower part of the ventilation passage 6 on the depth side, a refrigerator 11 and a blower 13 and an evaporator 12 which are constituent devices are provided.
In addition, the heaters 14 are arranged in parallel in front of and behind the heaters 14, and the above is the same as the above-mentioned conventional example.

On the other hand, below the left end of the case 1 installed on the installation surface via the legs 15, various electronic / electrical devices including the electronic / electrical devices constituting the refrigerator 11, such as the blower 13 and the heater 14, are controlled. A control circuit (not shown),
A control box 18a is shown in FIG. 1 and a control box 18 is shown in FIG.
b are arranged respectively. This control box 18a, 18b
The upper openings of the respective upper ends are screwed to the lower ends of the respective rear ends with the stepped screws 33 forming the rotating shafts from the left and right sides, respectively, and the rear ends are freely rotatable to the control boxes 18a and 18b, respectively. And the lids 20a and 20b that are detachably supported
Each is covered with.

The lower end of the front surface of the lid 20a is screwed to the control box 18a from both left and right sides with screws 19, and the lid 20b is also attached.
Also, at the lower end of the front surface of the control box 18b, there is a projection 34 protruding from the inner surface of the lid 20b in a direction in which they approach each other, and a fitting which is a hole that penetrates the control box 18b in the left-right direction. The parts 35 are formed on both left and right sides.

Further, the upper end of a support body 21 is fixed to the lower surface of the left end portion of the case 1, and is inserted into the support body 21 so that the control boxes 18a and 18b can be moved back and forth so that the case can be drawn out. 1 Each is supported below the left end. In the control boxes 18a, 18b, the control boxes 18a, 18b should not be projected from the outer peripheral surface, and the control boxes 18a, 18b should not be projected.
The operating devices 16 are arranged so that they can be operated through the upper opening of the control device 17, and the control devices 17 including the operating devices 16 are respectively built therein. Further, the control device 17 in the control boxes 18a and 18b and the electric wire 22 connecting between various electronic and electric devices in the case 1 are drawn out from the control boxes 18a and 18b, respectively.

The front surface of the case 1 is covered with a front cap 23, a color band 24, a bumper rail 25, a front panel 26, a kick plate 27, etc. in order from the top. At the left end of the kick plate 27, a window 30 is formed in the kick plate 27, which is openably and closably covered by a shield plate 29 whose lower end is rotatably supported via a rotary shaft 28 and which penetrates in the front-rear direction. The other configurations are the same as those of the conventional example described above.

In the above-described structure, in the showcase of the present invention having the control box lid supporting structure of the above-described structure, the air in the case 1 sucked into the ventilation passage 6 from the suction port 7 by the blower 13 Behavior of the showcase is the same as that of the above-mentioned conventional example, the description thereof will be omitted, and for each of the examples shown in FIG. 1 and FIG.
The operation procedure including the opening / closing operation of the lids 20a and 20b and the function of each part at the time of maintenance work such as adjustment will be described below.

In one embodiment of the present invention shown in FIG. 1, when the operation device 16 is operated to perform maintenance work such as test run and adjustment of the showcase, first, the shield plate 29 is opened. Next, the control box 18a is pulled out forward through the window 30 opened by this, within the range in which the electric wire 22 drawn from the control box 18a is not pulled and the wire is not broken, and the lower end of the front end of the lid 20a is screwed to the control box 18a. Loosen the screw 19 to remove. Then, the lid 20a becomes rotatable about the stepped screw 33 that constitutes the rotation axis.
Maintenance work such as test run and adjustment of the showcase can be performed by operating the operation device 16 through the upper opening of the control box 18a which is opened by rotating and opening and holding a. After the maintenance work is completed, the lid 20a, the control box 18a, and the shield plate 29 can be returned to their original positions by operating in the reverse order of the above.

In the different embodiment of the present invention shown in FIG. 2, when the operation device 16 is operated to perform the trial run, adjustment, etc. of the showcase, first, the shield plate 29 is opened. next,
This opens the control box 18b through the window 30 opened.
The electric wire 22 drawn out from the control box 18b is pulled out to the front within a range where the electric wire 22 is not pulled and is not broken, and the width of the lower end of the front end of the lid 20b is widened to the left or right within the elastic limit of the material of the lid 20b. Then, the protrusion 34 that fits into the fitting portion 35 that is a hole and locks the lower end of the front end portion of the lid 20b to the control box 18b comes off from the fitting portion 35, and the lid 20b rotates about the stepped screw 33 as an axis. Since it is movable, the operation of the operating device 16 can be performed through the upper opening of the control box 18b which is opened by rotating and holding the lid 20b, so that the trial run and adjustment of the showcase can be performed. Further, after the maintenance work is completed, the lid 20b and the control box 18 are operated by operating in the reverse order of the above.
b and the shielding plate 29 can be returned to their original positions.

That is, in each of the embodiments of the present invention shown in FIGS. 1 and 2, a lid 20 is attached to the lower ends of the front ends of the control boxes 18a and 18b pulled out through the window 30.
Screws 1 for fixing the lower ends of the front ends of a and 20b respectively
By loosening 9 or removing the locking projection 34, the lids 20a and 20b can rotate about the stepped screw 33 as an axis.

Therefore, when the control boxes 18a and 18b are pulled out, the screw 19 and the protrusion 34, which come to a position where they can be easily loosened and removed, in the embodiment shown in FIG. In the example of FIG.
The width of the lower end of the front end portion of the lid 20b can be widened to the left and right by hand and easily removed. Therefore, although a tool such as a triber is required in the embodiment of FIG. 1, in any of the embodiments, the operation device 16 can be opened by quickly opening the top openings of the control boxes 18a and 18b during maintenance work without any trouble. Can be operated and maintenance work can be performed quickly.

[0033]

According to the present invention, various electronic / electrical devices including devices that constitute a refrigerator for refrigerating or frozen storing the products displayed and displayed inside and cooling the inside of the case with one side of the outer peripheral surface opened. Built-in control device to operate and control,
One end of the lid, which is supported by the case and covers the opening of the control box which is open on one side and which is openably and closably supported by the control box, is rotatably supported by the one end of the control box. Even if the control box cannot be pulled out, and the end on the outer surface side of the case is screwed to the control box with a screw, this screw can be easily loosened and removed using a tool such as a screwdriver, and the lid can be rotated. The opening of the control box can be opened and closed quickly,
As a result, maintenance work can be performed quickly without much effort.

A lid whose one end is rotatably supported by one end of the control box is fastened to the control box by a screw at the other end, or one of the lid and the other end of the control box is A protrusion protruding from one side toward the other is formed, and a fitting part to which this protrusion fits is formed on the other side, or the rotatably supported via a rotation shaft, Loosen the screws using a tool such as a screwdriver, whether it is a lid that is configured with stepped screws and is rotatably supported, or a control box that cannot be completely removed from the case through a window. The lid can be easily rotated to quickly open and close the opening of the control box by removing the projection or the projection from the fitting portion, and the same effect as described above can be obtained.

As a result, when maintenance work such as trial run and adjustment is performed by operating the operating devices in the control box, the lid is opened to open the opening of the control box. Half the screws or protrusions that support the end opposite to the dynamic support side are removed by hand with or without a tool such as a screwdriver, and the lid is rotated to open the control box opening. It is possible to provide an effect that a control box lid support structure for a showcase that can be opened quickly and that is easy to perform maintenance work can be provided.

[Brief description of drawings]

FIG. 1 shows a structure of a control box lid support structure for a showcase according to one embodiment of the present invention, in which (A) is a control box whose top opening is covered with a lid, as viewed from the rear upper right. Perspective view,
(B) is an enlarged front longitudinal cross-sectional view of the main part of the right rear end portion of (A),
(C) is an enlarged front vertical cross-sectional view of the main part of the right front end of (A)

FIG. 2 is a perspective view of a control box lid support structure for a showcase according to another embodiment of the present invention, in which (A) is a rear perspective view of the control box whose top opening is covered with a lid; ) Is an enlarged front vertical cross-sectional view of the main part of the right rear end portion of (A), and (C) is an enlarged front vertical cross-section of the main part of the right front end portion of (A).

3A and 3B show a configuration of a showcase to which the present invention is applied, where FIG. 3A is a left-side vertical sectional view, and FIG.

4A and 4B show a configuration of a conventional control box lid support structure for a showcase, in which FIG. 4A is a left-side longitudinal sectional view, FIG. ) Is an enlarged perspective view of the control box of (A) as seen from the rear upper right, and (D) is an enlarged front vertical cross-sectional view of the main part of the lower left rear end of (C).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 case 2 opening 3 case body 4 partition wall 5 side plate 6 ventilation path 7 suction port 8 air outlet 9 rectifying body 10 suction port cover 11 refrigerator 12 evaporator 13 blower 14 heater 15 leg 16 operation device 17 control device 18, 18a, 18b Control box 19 Screws 20, 20a, 20b Lid 21 Support 22 Electric wire 23 Front cap 24 Color band 25 Bumper rail 26 Front panel 27 Kick plate 28 Rotating shaft 29 Shielding plate 30 Window 31 Air curtain 32 Circulating flow 33 Stepped screw (Rotating shaft) 34 Protrusion 35 Fitting part

Claims (5)

[Claims] 1. A control device for operating and controlling various electronic and electric devices including a device that constitutes a refrigerator for refrigerating or freezing the products displayed and displayed inside and cooling the inside of a case having one outer peripheral surface opened. A control box lid support structure for a showcase, comprising: a control box supported by the case and having an opening on one side, the lid covering the opening of the control box being openably and closably supported. A control box lid support structure for a showcase, wherein the control box lid is rotatably supported at one end of the control box. 2. The control box lid support structure for a showcase according to claim 1, wherein a lid having one end rotatably supported by one end of the control box and the other end fastened to the control box by a screw. A control box lid support structure for a showcase, characterized in that 3. The control box lid support structure for a showcase according to claim 1, wherein one end of the lid has one end rotatably supported by one end of the control box and the other end of the control box. A control box lid support structure for a showcase, characterized in that a protrusion projecting toward is formed on the other side, and a fitting portion into which the protrusion is fitted is formed on the other side. 4. The control box lid support structure for a showcase according to claim 1, wherein the lid is rotatably supported at its one end on one end of the control box via a pivot shaft. A control box lid support structure for a showcase, which is characterized by being a lid. 5. The showcase control box lid support structure according to claim 4, wherein the pivot shaft is a pivot shaft constituted by a stepped screw. .