JP2021124257A - Storage - Google Patents

Abstract

To provide a storage having an excellent maintenance workability in which a suspension-support state of an electrical equipment box in a machine chamber can be released without drawing out the whole length in depth of the electrical equipment box from the machine chamber.SOLUTION: A slide mechanism 22 which supports an electrical equipment box 21 in a slidable manner in a front-rear direction, includes a guide body 23 provided to the machine chamber 14, and a runner body 24 provided to the electrical equipment box 21 and guided and engaged with the guide body 23. Each of the guide bodies 23 is composed of a rear guide 23B and a front guide 23A, and each of the runner bodies 24 is composed of a rear runner 24B and a front runner 24A. The height position Ha at a front end part Pa of a rear support surface 33B is set such as to be lower than the height position Hb at a rear end part Pb of the front support surface 33A of the front guide 23A. The slide locus of the rear runner 24B when the rear runner 24B is slid frontward while being supported by the rear guide 23B is set such as not to interfere with the front guide 23A.SELECTED DRAWING: Figure 1

Description

The present invention relates to a storage in which an electrical box suspended and supported in a machine room is configured to be slidable in the front-rear direction. Specific examples of the storage in the present invention include a refrigerator, a freezer, a cooler, a cold storage, and the like, in addition to a showcase.

In the storage of the present invention, the electrical box is suspended and supported by a rail arranged in the machine chamber, and the electrical box is slidable in the front-rear direction along the rail. It is known in Document 1. On the top surface of the machine room 13 of the cooling storage of Patent Document 1, a main body side rail 23 as a holding portion is arranged over the front and rear. The main body side rail 23 is mounted by forming a predetermined gap G in the front-rear direction between the mounting rail 24 having a stepped cross section screwed to the top surface of the machine room 13 and the upper surface and the end face of the lower side of the mounting rail 24. It is composed of a crank-shaped holding rail 25. An electrical box side rail 32 having a substantially L-shaped cross section as a held portion is attached to the upper end of the electrical box 16 over the front and rear, and the electrical box side rail 32 is bent from the side of the electrical box 16 to the upper surface side. There is. In the cooling storage of Patent Document 1 having the above rail structure, the rear end of the electrical box side rail 32 of the electrical box 16 is the gap between the mounting rail 24 and the holding rail 25 at the front end of the main body side rail 23. By inserting it into the G, the electrical box 16 can be suspended and supported in the machine room 13. Further, by moving the electric box side rail 32 in the main body rail 23, the electric box 16 can be slid and moved in the front-rear direction while maintaining the suspended support state.

Japanese Unexamined Patent Publication No. 7-159025

In the cooling storage of Patent Document 1, in order to lower the electrical box 16 from the main body side rail 23 and release the hanging support state, all of the electrical box 16 is pulled out from the machine room 13 and the electrical box with respect to the main body side rail 23. It is necessary to release all of the engaged states of the side rails 32, and more specifically, it is necessary to pull out the rear end of the electrical box side rail 32 from the front end of the main body side rail 23. Therefore, in the cooling storage of Patent Document 1, when the electrical box 16 is lowered (the suspended support state is released) and the maintenance work is performed, the entire depth length of the electrical box 16 must be pulled out from the machine room 13. Therefore, maintenance work cannot be performed efficiently. Further, in the cooling storage of Patent Document 1, it is necessary to set the cable lengths such as the power supply line and the communication line in advance by the depth length of the electrical box 16, and the cable routing may be complicated by that amount. Inevitable.

It is an object of the present invention to provide a storage that can release the suspended support state of the electrical box in the machine room without pulling out the entire depth length of the electrical box from the machine room and has excellent maintenance workability. And.

The present invention is intended for a storage room provided with a slide mechanism 22 that supports the electrical box 21 assembled in the machine room 14 so as to be slidable in the front-rear direction. The slide mechanism 22 includes a pair of left and right guide bodies 23 provided in the upper part of the machine room 14, and a pair of left and right runner bodies 24 provided in the upper part of the electrical box 21 and guided by the guide bodies 23. Each guide body 23 is composed of a rear guide 23B arranged behind the machine room 14 and a front guide 23A arranged in front of the machine room 14, and each runner body 24 is arranged behind the electrical box 21. It is composed of a rear runner 24B and a front runner 24A arranged in front of the electrical box 21. The front support surface 33A is defined based on the extension direction of the support portion 30 that supports the front runner 24A of the front guide 23A, and the rear support surface 33B is defined based on the extension direction of the support portion 30 that supports the rear runner 24B of the rear guide 23B. Is specified, the height position Ha at the front end portion Pa of the rear support surface 33B is set to be lower than the height position Hb at the rear end portion Pb of the front support surface 33A. The feature is that the slide locus of the rear runner 24B when the rear runner 24B is slid forward while being supported by the support portion 30 of the rear guide 23B is set so as not to interfere with the front guide 23A. do.

The rear guide 23B extends from the rear end of the machine room 14 to the center of the machine room 14 in the front-rear direction, and the front guide 23A extends from the center of the machine room 14 in the front-rear direction to the front end of the machine room 14. It has reached. When the electrical box 21 is slid forward from the mounting posture in which the electrical box 21 is assembled in the machine room 14 by the slide mechanism 22 to release the engagement state between the rear runner 24B and the rear guide 23B. The front runner 24A and the front guide 23A are configured to be disengaged from each other. It should be noted here that "when the engagement state between the rear runner 24B and the rear guide 23B is released, the engagement state between the front runner 24A and the front guide 23A is released." The rear runner 24B and the rear guide 23B are not limited to the configuration in which the engagement state between the front runner 24A and the front guide 23A is released at substantially the same time as the engagement state between the rear runner 24B and the rear guide 23B is released. After the engagement state with the front runner 24A is released, the engagement state between the front runner 24A and the front guide 23A is released, or before the engagement state between the rear runner 24B and the rear guide 23B is released. It is a concept including a configuration in which the engagement state between the front runner 24A and the front guide 23A is released.

The vertical gap dimension G defined by the height position Ha at the front end Pa of the rear support surface 33B and the height position Hc at the rear end Pc of the lower surface of the front guide 23A is the vertical gap dimension G of the rear runner 24B. It is set larger than the thickness dimension Ta.

The front guide 23A and the rear guide 23B have a rail piece 31 that is provided in the upper part of the machine room 14 and projects inward from a pair of support walls 29 extending in the front-rear direction. It has runner pieces 32 that project outward from the left and right side surfaces of 21. The front support surface 33A is defined based on the extension direction of the upper surface of the rail piece 31 constituting the front guide 23A, and the rear support surface 33B is defined based on the extension direction of the upper surface of the rail piece 31 constituting the rear guide 23B. There is. The vertical gap dimension G defined by the height position Ha at the front end Pa of the rear support surface 33B and the height position Hc at the rear end Pc of the lower surface of the rail piece 31 constituting the front guide 23A is the rear. The thickness dimension Tb in the vertical direction of the runner piece 32 constituting the runner 24B is set to be larger.

Each of the front support surface 33A and the rear support surface 33B can be a horizontal plane running in the front-rear direction. Alternatively, each of the front support surface 33A and the rear support surface 33B can be an inclined surface that lowers toward the rear.

In the storage 1 of the present invention, the pair of left and right guide bodies 23 provided in the upper part of the machine room 14 are arranged behind the machine room 14 and the rear guides 23B and the front guides 23B are arranged in front of the machine room 14. It is composed of the guide 23A, and the height position Ha at the front end portion Pa of the rear support surface 33B defined based on the extension direction of the support portion 30 of the rear guide 23B is extended in the extension direction to the support portion 30 of the front guide 23A. It was set to be lower than the height position Hb at the rear end portion Pb of the front support surface 33A defined based on the above. Further, each of the pair of left and right runner bodies 24 provided on the upper part of the electrical box 21 and being engaged and guided by the guide body 23 are arranged behind the electrical box 21 and then in front of the runner 24B and the electrical box 21. It is composed of the arranged front runner 24A, and further, the slide locus of the rear runner 24B when the rear runner 24B is slid forward is set so as not to interfere with the front guide 23A. In the storage 1 having the above configuration, the front and rear runners 24A and 24B on the electrical box 21 side are supported by the front and rear guides 23A and 23B on the machine room 14 side, so that the electrical box 21 can be moved to the machine room 14. It can be mounted inside in a suspended support state. Further, when the electrical box 21 is moved forward from such a mounted state, the engagement state between the front runner 24A and the front guide 23A and the engagement state between the rear runner 24B and the rear guide 23B Is released, the suspended support state of the electrical box 21 can be released, and the electrical box 21 can be lowered onto the bottom surface of the machine room 14. At this time, since the slide locus of the rear runner 24B when the rear runner 24B is slid forward is set so as not to interfere with the front guide 23A, the guide body 23 is divided into the front guide 23A and the rear guide 23B. Regardless, the rear runner 24B can be slid forward without any trouble.

As described above, according to the storage 1 of the present invention, the engagement state between the front runner 24A and the front guide 23A and the engagement state between the rear runner 24B and the rear guide 23B are released. Since the hanging support state of the electrical box 21 can be released and the electrical box 21 can be lowered, the electrical box 21 can be lowered with a smaller slide movement width without pulling out the entire depth length of the electrical box 21. It becomes possible to perform maintenance work with high work efficiency. Further, since the play margin of the cable length such as the power supply line and the communication line can be reduced by the amount that the slide movement width of the electrical box 21 at the time of descent is reduced, the cable routing configuration can be simplified. In addition, it is possible to prevent the cable routing from becoming complicated.

The rear guide 23B extends from the rear end of the machine room 14 to the center of the machine room 14 in the front-rear direction, and the front guide 23A extends from the center of the machine room 14 in the front-rear direction to the front end of the machine room 14. From the mounting posture in which the electrical box 21 is assembled in the machine room 14 by the slide mechanism 22, the electrical box 21 is slid forward to release the engagement state between the rear runner 24B and the rear guide 23B. At that time, if the front runner 24A and the front guide 23A are configured to be disengaged, the length dimension of the front and rear guides 23A and 23B in the front-rear direction is about half of the total length of the machine room 14. Further, by sliding the electrical box 21 about half of the total length of the machine room 14, the hanging support state can be released and the electrical box 21 can be lowered. Therefore, maintenance work can be performed with high work efficiency, and the cable routing configuration can be simplified.

Specifically, the vertical gap dimension G defined by the height position Ha at the front end Pa of the rear support surface 33B and the height position Hc at the rear end Pc of the lower surface of the front guide 23A is the rear runner. It is possible to adopt a configuration in which the thickness dimension Ta in the vertical direction of 24B is set to be larger. This makes it possible to prevent the slide locus of the rear runner 24B from interfering with the front guide 23A when the rear runner 24B is slid forward.

Assuming that the front and rear guides 23A and 23B have rail pieces 31 and the front and rear runners 24A and 24B have runner pieces 32, for example, the guide body 23 or the runner body 24 is composed of a runner unit having rollers. Compared with, the guide mechanism can be greatly simplified. It is also possible to save space in the guide mechanism. At this time, the front support surface 33A is defined based on the extension direction of the upper surface of the rail piece 31 constituting the front guide 23A, and the rear support surface 33B is defined based on the extension direction of the upper surface of the rail piece 31 constituting the rear guide 23B. A vertical gap defined by the height position Ha at the front end Pa of the rear support surface 33B and the height position Hc at the rear end Pc of the lower surface of the rail piece 31 constituting the front guide 23A. When the dimension G is set to be larger than the vertical thickness dimension Tb of the runner piece 32 constituting the rear runner 24B, the slide locus of the rear runner 24B when the rear runner 24B is slid forward is a front guide. It is possible to prevent interference with 23A.

If each of the front support surface 33A and the rear support surface 33B is a horizontal plane running in the front-rear direction, the electrical box 21 is prevented from inadvertently sliding in the front-rear direction, and the reliability of the slide mechanism is improved. ..

If each of the front support surface 33A and the rear support surface 33B is an inclined surface that descends toward the rear, the electrical box 21 can be configured to move backward, so that the electrical box 21 is inadequate. It is possible to prevent the vehicle from sliding forward.

It is a longitudinal side view of the main part of the storage which concerns on Example 1 of this invention. It is a longitudinal side view of the storage. It is a front view of the machine room which constitutes a storage. It is a plan view of the slide mechanism, and is the cross-sectional view taken along line AA in FIG. It is a vertical sectional front view of a slide mechanism, and is the cross-sectional view taken along line BB in FIG. It is a figure for demonstrating the work of removing an electrical box from a machine room. It is a figure for demonstrating the method of mounting an electrical box in a machine room. It is a figure for demonstrating another mounting method of an electrical box in a machine room. It is a longitudinal side view of the main part of the storage which concerns on Example 2 of this invention. It is a longitudinal side view of the main part of the storage which concerns on Example 3 of this invention.

(Example 1) FIGS. 1 to 8 show Example 1 in which the storage according to the present invention is applied to a multi-stage open showcase. The front-back, left-right, and up-down in this embodiment follow the crossing arrows shown in FIGS. 1 to 3 and the notations of front-back, left-right, and up-down in the vicinity of the arrows. In FIG. 2, the open showcase 1 includes a main body case 2 formed of a heat insulating box whose front surface is open, and an inner case 3 arranged inside the main body case 2, and the inside of the inner case 3 is displayed. It is partitioned as room 4. A cold air passage 7 is partitioned between the cases 2 and 3 from a suction port 5 provided on the lower front edge of the display chamber 4 to an air outlet 6 provided on the upper front edge of the display chamber 4. Reference numeral 8 is a shelf board made of flat glass provided in a multi-stage shape, and the rear ends of the shelf brackets 9 fixed to the left and right ends of the shelf board 8 are supported by the rear wall of the inner case 3.

The cold air passage 7 is formed in a U-shaped cross section, and the evaporator 12 constituting the refrigerating device and the circulation fan 13 for circulating air in the main body case 2 are installed in the passage 7. The circulation fan 13 is constantly driven during the operation of the open showcase 1, and air is blown from the outlet 6 toward the suction port 5 by the drive of the circulation fan 13, and the display chamber 4 is opened in the front opening of the main body case 2. An air curtain that suppresses the intrusion of outside air into the air curtain is formed. The display room 4 is cooled by heat exchanged by the evaporator 12 and the cooled air is supplied by the air curtain.

In the machine room 14 partitioned under the main body case 2, a compressor 15 and a condenser 16 constituting a refrigerating device together with an evaporator 12 and a condenser fan 17 for cooling both 15 and 16 are installed. There is. Each of the devices 12, 15 to 17 constituting these refrigeration devices is connected in a loop by a refrigerant pipe (not shown). A machine room panel 18 is detachably attached to the front surface of the machine room 14, and the machine room 14 can be opened and closed by attaching and detaching the machine room panel 18.

As shown in FIG. 3, the above-mentioned devices 15 to 17 constituting the refrigerating device installed in the machine room 14 are assembled to the left side of the machine room 14 in the front view, and to the right side of the machine room 14. , The electrical box 21 on which the lighting equipment and the control device for controlling the refrigerating device included in the open showcase 1 are mounted is installed. Specifically, the electrical box 21 is assembled in the machine room 14 by a slide mechanism 22 that suspends and supports the box 21 so as to be slidable in the front-rear direction (see FIG. 2). The slide mechanism 22 includes a pair of left and right guide bodies 23 provided in the upper part of the machine room 14, and a pair of left and right runner bodies 24 provided in the upper part of the electrical box 21 and guided by the guide bodies 23. As shown in FIGS. 1 and 4, each guide body 23 is composed of a front guide 23A arranged in front of the machine room 14 and a rear guide 23B arranged behind the machine room 14. Further, each runner body 24 is composed of a front runner 24A arranged in front of the electrical box 21 and a rear runner 24B arranged behind the electrical box 21. The front runner 24A is engaged and supported by the front guide 23A so as to be slidable in the front-rear direction, and the rear runner 24B is engaged and supported by the rear guide 23B so as to be slidably movable in the front-rear direction. The front and rear guides 23A and 23B are arranged in the same position in the machine room 14 in the left-right direction, and the front guides 23A and the rear guides 23B arranged in the front-rear direction in a plan view are in a straight line.

As shown in FIGS. 1 and 5, the guide body 23 is provided on the lower surface of the bottom wall 2A of the main body case 2 (the top wall of the machine room 14) via the guide base 27. The guide base 27 includes a support frame 28 having an inverted hat-shaped cross section in a side view, and a pair of vertical walls (support walls) 29 extending downward from the left and right edges of the lower wall of the support frame 28. Each vertical wall 29 is provided over the front-rear direction of the lower wall of the support frame 28, and the lower edge thereof is formed in a stepped shape in which the front side is high and the rear side is low with a substantially central portion as a boundary. Support portions 30 for receiving the front and rear runners 24A and 24B are provided on the front side portion and the rear side portion of the lower edge of the vertical wall 29, respectively. In this embodiment, rail pieces 31 are formed so as to project inward on each of the front lower edge and the rear lower edge of each vertical wall 29, and the rail pieces 31 form a support portion 30. A pair of rail pieces 31 formed on the lower front edge of the vertical wall 29 constitutes the front guide 23A, and the front guide 23A extends from the central portion of the machine room 14 in the front-rear direction to the front end portion of the machine room 14. It has reached. Further, a pair of rail pieces 31 formed on the rear lower edge of the vertical wall 29 constitute the rear guide 23B, and the rear guide 23B is from the rear end of the machine room 14 in the front-rear direction of the machine room 14. It reaches the central part of. The support frame 28 and the vertical wall 29 of the guide base 27 and the rail piece 31 (support portion 30) are integrally formed by bending a galvanized steel plate cut out to a predetermined shape. The rail piece 31 is fixed to the top surface of the machine room 14 by fastening the front and rear horizontal wall portions of the guide base 27 to the top wall of the machine room 14 with fasteners.

As shown in FIGS. 1 and 4, the electrical box 21 is formed in a square box shape having an open upper surface, and a control device or the like is mounted therein. Although not shown, the control device in the electrical box 21 is connected to various devices included in the open showcase 1 by cables such as a power supply line and a communication line. Each of the upper edges of the left and right walls 21A and 21B of the electrical box 21 is formed in a stepped shape with the front side high and the rear side low with the central portion as a boundary, and the front and rear guides are formed on the front upper edge and the rear upper edge. Runners 24A and 24B before and after being received by 23A and 23B are provided. In this embodiment, runner pieces 32 are formed so as to project outward on each of the front upper edge and the rear upper edge of the left and right walls 21A and 21B of the electrical box 21. A pair of left and right runner pieces 32 formed on the front upper edges of the left and right walls 21A and 21B form a front runner 24A, and a pair of left and right runner pieces 32 formed on the rear upper edges of the left and right walls 21A and 21B. It constitutes the rear runner 24B. The electrical box 21 and the runner piece 32 are integrally formed by bending a galvanized steel sheet cut out to a predetermined shape.

Each rail piece 31 is composed of a horizontal wall. Specifically, the front support surface 33A is defined based on the extension direction of the upper surface of the rail piece 31 (support portion 30) that supports the front runner 24A of the front guide 23A, and the rail that supports the rear runner 24B of the rear guide 23B. When the rear support surface 33B is defined based on the extension direction of the piece 31 (support portion 30), each of the front support surface 33A and the rear support surface 33B is a horizontal plane running in the front-rear direction. Similarly, each runner piece 32 is composed of a horizontal wall, and specifically, the lower surfaces of the front runner 24A and the rear runner 24B which are engagedly supported (received and supported) by the front support surface 33A and the rear support surface 33B. Each is a horizontal plane running in the front-back direction. In FIG. 1, reference numeral 36 indicates a lock screw for holding the electrical box 21 in the mounting posture immovably. By screwing the lock screw 36 into the support frame 28 via the fixing wall 37 formed continuously on the upper edge of the front wall of the electrical box 21, the fixing wall 37 is fastened and fixed to the guide base 27. The slide movement of 21 can be regulated.

When the electrical box 21 is slid forward with the runner pieces 32 (front and rear runners 24A and 24B) supported by the rail pieces 31 (support portion 30) of the front and rear guides 23A and 23B, the rear runner 24B The slide locus is configured so as not to interfere with the front guide 23A. Specifically, as shown in FIG. 3, the height position Ha at the front end portion Pa of the rear support surface 33B of the rear guide 23B is higher than the height position Hb at the rear end portion Pb of the front support surface 33A in the front guide 23A. Is also set low. Further, as shown in FIG. 3, the height position Ha at the front end Pa of the rear support surface 33B in the rear guide 23B and the height position (front) at the rear end Pc of the lower surface of the rail piece 31 constituting the front guide 23A. The vertical gap dimension G defined by (height position at the rear end Pc of the lower surface of the guide 23A) Hc is the vertical thickness dimension Ta of the rear runner 24B, in other words, the runners constituting the rear runner 24B. It is set to be larger than the vertical thickness dimension Tb of the piece 32.

Further, as shown in FIG. 3, the vertical dimension W1 between the lower surface of the lower wall of the support frame 28 and the front support surface 33A is from the vertical dimension W2 between the upper surface of the front runner 24A and the lower surface of the rear runner 24B. Is also set large.

Next, a method of mounting the separated electrical box 21 in the open showcase according to the present embodiment having the above configuration will be described with reference to FIG. 7. First, about half of the electrical box 21 in the front-rear direction is inserted into the machine room 14, and the electrical box 21 is placed on the bottom surface of the machine room 14. From this state, the electrical box 21 is held and lifted, and the rear end of the rear runner 24B is hooked on the tip of the rear support surface 33B of the rear guide 23B. Next, the rear runner 24B hooks the rear end of the front runner 24A on the tip of the front support surface 33A of the front guide 23A while pushing the electrical box 21 which is cantilevered and supported by the rear guide 23B backward. After that, by pushing the electrical box 21 backward until the fixed wall 37 abuts on the support frame 28, the electrical box 21 can be brought into a mounted state in which it is suspended and supported by the slide mechanism 22. Finally, the lock screw 36 is screwed in to restrict the sliding movement of the electrical box 21, and the mounting operation is completed.

In the open showcase according to the present embodiment, the separated electrical box 21 can be mounted by the procedure as shown in FIG. First, the electrical box 21 placed on the floor surface in front of the machine room 14 is held and lifted, and the rear end of the rear runner 24B is hooked on the tip of the front support surface 33A of the front guide 23A. In this state, the electrical box 21 is pushed backward, and the front runner 24A is inserted between the lower surface of the lower wall of the support frame 28 and the front support surface 33A while the rear runner 24B is received and supported by the front support surface 33A. In this state, the rear runner 24B is received and supported by the front support surface 33A, but the front runner 24A is separated from the front support surface 33A and is not supported. Further, when the electrical box 21 is pushed backward, the receiving support of the rear runner 24B is released and falls on the rear end side of the front supporting surface 33A, but the rear runner 24B is received and supported by the rear supporting surface 33B immediately after the fall. Will be done. As the electrical box 21 falls, the electrical box 21 sinks downward, so that the front runner 24A is received and supported by the front support surface 33A. After that, the electrical box 21 is pushed backward until the fixed wall 37 abuts on the support frame 28. After that, the mounting operation is completed in the same manner as the previous mounting method. In the mounting method of FIG. 8, as described above, the vertical dimension W1 between the lower surface of the lower wall of the support frame 28 and the front support surface 33A is set between the upper surface of the front runner 24A and the lower surface of the rear runner 24B. It depends on setting it larger than the vertical dimension W2 of.

Next, the separation operation (removal work) of the electrical box 21 will be described with reference to FIG. First, the machine room panel 18 is separated from the front side of the machine room 14, so that the electrical box 21 can be accessed from the front side of the machine room 14. Next, by loosening the lock screw 36 to release the fastening and fixing of the fixing wall 37 to the support frame 28, the electrical box 21 becomes slidable. In this state, by holding the electrical box 21 and pulling it toward the front side (front side), the front runner 24A and the rear runner 24B slide on the front guide 23A and the rear guide 23B, and the electrical box 21 moves into the machine room. It is pulled out to the outside of 14. When the electrical box 21 is pulled out about half in the front-rear direction, the engagement state between the front guide 23A and the runner 24A is first released. Further, when the electrical box 21 is pulled out toward the front side, the engagement state between the guide 23B and the runner 24B on the rear side is released, the hanging support state of the electrical box 21 by the slide mechanism 22 is released, and the electrical box 21 is released. It can be lowered onto the bottom surface of the machine room 14.

As described above, according to the open showcase 1 according to the present embodiment, the engagement state of the front runner 24A with the front guide 23A and the engagement state of the rear runner 24B with the rear guide 23B are as described above. By releasing it, the hanging support state of the electrical box 21 can be released and the electrical box 21 can be lowered. Therefore, the electrical box 21 can be lowered with a smaller slide movement width without pulling out the entire depth length of the electrical box 21. 21 can be lowered, and maintenance work can be performed more efficiently. Further, since the play margin of the cable length such as the power supply line and the communication line can be reduced by the amount that the slide movement width of the electrical box 21 at the time of descent is reduced, the cable routing configuration can be simplified. It is also possible to prevent the cable routing from becoming complicated.

Specifically, from the mounting posture in which the electrical box 21 is assembled in the machine room 14 by the slide mechanism 22, the electrical box 21 is slid forward and the rear runner 24B and the rear guide 23B are engaged with each other. Since the engagement state between the front runner 24A and the front guide 23A is released when the front runner 24A is released, the length dimension of the front and rear guides 23A and 23B in the front-rear direction is about half of the total length of the machine room 14. Further, by sliding the electrical box 21 about half of the total length of the machine room 14, the hanging support state can be released and the electrical box 21 can be lowered. Therefore, maintenance work can be performed with high work efficiency, and the cable routing configuration can be simplified.

Since the front and rear guides 23A and 23B are composed of rail pieces 31 and the front and rear runners 24A and 24B are composed of runner pieces 32, the slide mechanism 22 can be greatly simplified and space can be saved. Further, the vertical gap dimension G defined by the height position Ha at the front end Pa of the rear support surface 33B and the height position Hc at the rear end Pc of the lower surface of the rail piece 31 constituting the front guide 23A is set. Since the thickness dimension Tb in the vertical direction of the runner piece 32 constituting the rear runner 24B is set to be larger, the slide locus of the rear runner 24B when the rear runner 24B is slid forward interferes with the front guide 23A. Can be prevented.

(Example 2) FIG. 9 shows an open showcase according to the second embodiment. In this embodiment, each of the rail piece 31 (support wall 30) constituting the front guide 23A and the rail piece 31 (support wall 30) constituting the rear guide 23B is provided at a position where the front end portion is lower than the rear end portion. It is different from the slide mechanism 22 of the first embodiment in that it is composed of an inclined wall and each of the front support surface 33A and the rear support surface 33B is an inclined surface that lowers toward the rear. Further, the first embodiment is characterized in that each of the runner piece 32 constituting the front runner 24A and the runner piece 32 constituting the rear runner 24B is composed of an inclined wall provided at a position lower than the rear end portion at the front end portion. It is different from the slide mechanism 22. The slopes of the inclined walls forming the rail piece 31 and the runner piece 32 are set to be the same. Since the other parts are the same as those in the first embodiment, the same members are designated by the same reference numerals and the description thereof will be omitted. The same shall apply in the following examples.

As described above, if each of the front support surface 33A and the rear support surface 33B is an inclined surface that lowers as it goes backward, the electrical box 21 can be configured to move backward, and the electrical box 21 can be freely moved. It is possible to prevent the 21 from inadvertently sliding forward. Since the slide mechanism 22 prevents the electrical box 21 from inadvertently moving forward, the lock screw 36 in the first embodiment can be omitted. It can be assumed that each of the front support surface 33A and the rear support surface 33B is an inclined surface that rises as it goes backward. In that case, the electrical box 21 is separated during the separation operation (removal work) of the electrical box 21. The electrical box 21 can be pulled out to the front side (front side) with a small pulling force by using its own weight.

(Example 3) FIG. 10 shows an open showcase according to the third embodiment. In this embodiment, the support portions 30 of the front and rear guides 23A and 23B are replaced with rail pieces 31 to form a pair of front and rear rollers 40 and 40, which is different from the slide mechanism 22 of the first embodiment. Each roller 40 is rotatably provided on the inner surface side of a tongue piece-shaped vertical wall (support wall) 29 extending downward from the left and right edges of the lower wall of the support frame 28 by a roller shaft 41 composed of a horizontal axis. ing. The rollers 40 have the same shape and the same size, and the height positions of the roller shafts 41 of the rollers 40 constituting the front guide 23A are the same. Similarly, the height positions of the roller shafts 41 of the rollers 40 constituting the rear guide 23B are the same. The front support surface 33A of the support portion 30 of the front guide 23A coincides with the common circumscribed line in the upper half of the pair of rollers 40 and 40. Similarly, the rear support surface 33B of the support portion 30 of the rear guide 23B coincides with the common circumscribed line in the upper half of the pair of rollers 40.40. Each of the front support surface 33A and the rear support surface 33B is a horizontal plane running in the front-rear direction.

The height position Ha at the front end Pa of the rear support surface 33B of the rear guide 23B in the first embodiment, the height position Hb at the rear end Pb of the front support surface 33A in the front guide 23A, and the rear end of the lower surface of the front guide 23A. The height position Hc in the portion Pc is the uppermost portion of the roller 40 on the front side of the rear guide 23B, the uppermost portion of the roller 40 on the rear side of the front guide 23B, and the roller 40 on the rear side of the front guide 23B, respectively. Corresponds to the bottom. The vertical gap dimension G defined by the height position Ha and the height position Hc is set to be larger than the thickness dimension Tb (Ta) of the rear runner 24B (rail piece 31). The support portions 30 of the front and rear guides 23A and 23B may be composed of rail pieces 31, and the runner pieces 32 of the front and rear runners 24A and 24B may be composed of a pair of front and rear rollers 40.

In each of the above embodiments, the electrical box 21 is installed on the right side of the machine room 14, but the refrigerating device may be assembled on the right side of the machine room 14 and the electrical box 21 may be installed on the left side. The present invention can also be applied to an open showcase in which a machine room 14 is partitioned on the left-right side or the upper side of the main body case 2. The present invention can be applied not only to open showcases, but also to reach-in showcases, commercial refrigerators / freezers, coolers, refrigerators, and the like.

1 Storage (open showcase)
14 Machine room 21 Electrical box 22 Slide mechanism 23 Guide body 23A Front guide 23B Rear guide 24 Runner body 24A Front runner 24B Rear runner 30 Support part 31 Rail piece 32 Runner piece 33A Front support surface 33B Rear support surface G Gap dimension Ha Rear support Height position at the front end of the surface Hb Height position at the rear end of the front support surface Hc Height position at the rear end of the lower surface of the front guide (height position at the rear end of the lower surface of the rail piece)
Pa Front end of the rear support surface Pb Rear end of the front support surface Pc Rear end of the lower surface of the front guide Ta Vertical thickness dimension of the rear runner Tb Vertical thickness dimension of the runner piece

Claims (6)

It is a storage room provided with a slide mechanism (22) that supports the electrical box (21) assembled in the machine room (14) so as to be slidable in the front-rear direction.
The slide mechanism (22) is engaged and guided by a pair of left and right guide bodies (23) provided in the upper part of the machine room (14) and a guide body (23) provided in the upper part of the electrical box (21). Equipped with a pair of left and right runner bodies (24),
Each guide body (23) is composed of a rear guide (23B) arranged behind the machine room (14) and a front guide (23A) arranged in front of the machine room (14).
Each runner body (24) is composed of a rear runner (24B) arranged behind the electrical box (21) and a front runner (24A) arranged in front of the electrical box (21).
A support that defines the front support surface (33A) based on the extension direction of the support portion (30) that supports the front runner (24A) of the front guide (23A) and supports the rear runner (24B) of the rear guide (23B). When the rear support surface (33B) is defined based on the extension direction of the portion (30), the height position (Ha) of the rear support surface (33B) at the front end portion (Pa) is after the front support surface (33A). It is set to be lower than the height position (Hb) at the end (Pb).
The slide locus of the rear runner (24B) when the rear runner (24B) is slid forward while being supported by the support portion (30) of the rear guide (23B) so as not to interfere with the front guide (23A). A storage that is characterized by being set. The rear guide (23B) extends from the rear end of the machine room (14) to the center of the machine room (14) in the front-rear direction.
The front guide (23A) extends from the central portion of the machine room (14) in the front-rear direction to the front end portion of the machine room (14).
From the mounting posture in which the electrical box (21) is assembled in the machine room (14) by the slide mechanism (22), the electrical box (21) is slid forward to move the rear runner (24B) and the rear guide (23B). The storage according to claim 1, wherein the engagement state between the front runner (24A) and the front guide (23A) is released when the engagement state with the front runner (24A) is released. The vertical direction defined by the height position (Ha) at the front end (Pa) of the rear support surface (33B) and the height position (Hc) at the rear end (Pc) of the lower surface of the front guide (23A). The storage according to claim 1 or 2, wherein the gap dimension (G) is set to be larger than the vertical thickness dimension (Ta) of the rear runner (24B). The front guide (23A) and the rear guide (23B) have rail pieces (31) that are provided in the upper part of the machine room (14) and project inward from a pair of support walls (29) that extend back and forth.
The front runner (24A) and the rear runner (24B) have runner pieces (32) protruding outward from the left and right sides of the electrical box (21).
The front support surface (33A) is defined based on the extension direction of the upper surface of the rail piece (31) constituting the front guide (23A), and in the extension direction of the upper surface of the rail piece (31) constituting the rear guide (23B). The rear support surface (33B) is defined based on this.
The height position (Ha) at the front end (Pa) of the rear support surface (33B) and the height position (Hc) at the rear end (Pc) of the lower surface of the rail piece (31) constituting the front guide (23A). Claims 1 to 3 in which the vertical gap dimension (G) defined by the above is set to be larger than the vertical thickness dimension (Tb) of the runner piece (32) constituting the rear runner (24B). The storage listed in any one of. The storage according to claim 1, wherein each of the front support surface (33A) and the rear support surface (33B) is a horizontal plane running in the front-rear direction. The storage according to claim 1, wherein each of the front support surface (33A) and the rear support surface (33B) is an inclined surface that lowers toward the rear.

Images