JP7441713B2 - cooling storage - Google Patents

Description

TECHNICAL FIELD The technology disclosed herein relates to cold storage.

BACKGROUND ART Conventionally, a cooling storage is known that has a storage chamber and a cooling device inside a storage main body, and is movable by providing a plurality of wheels on the lower side of the storage main body. For example, Patent Document 1 states that in a storage room (storage room) of such a cooling storage (refrigerated storage), shelf supports for supporting trays on which stored items are placed can be installed at an arbitrary height. A structure is disclosed. That is, in this storage room, two shelf pillars each having locking holes at predetermined intervals in the vertical direction are provided on the left and right side walls of the storage room, and the shelf pillars are connected to long shelf supports that are approximately L-shaped in cross section. A locking claw is provided, and by locking the locking claw of the shelf support into the locking hole of the shelf pillar, the shelf support can be installed at an arbitrary height on the shelf pillar.

Japanese Patent Application Publication No. 2001-041645

However, in such a cooling storage, the shelf supports are not fixed to the shelf pillars. Therefore, while this is not a major problem when trays or stored items are placed on the shelf holders, when the trays are removed from the shelf holders, the vibrations generated by the cooling device cause the shelf holders and shelf posts to become damaged. There were cases where a contact sound (chattering sound) was generated between the two.

The technology disclosed herein has been completed in view of the above circumstances, and provides a cooling storage in which the generation of contact noise between shelf supports and shelf pillars caused by vibrations of the cooling device is suppressed. The purpose is to

In order to solve the above problems, the technology disclosed herein includes a storage main body, a cooling device for cooling the inside of the storage main body, and a plurality of wheels arranged on the lower side of the storage main body. To provide a refrigerated storage that is equipped and movable. In this cooling storage, the storage main body has a box-like shape that opens forward and has a shelf support structure in which a plurality of shelf boards can be placed vertically side by side. The structure includes a plurality of shelf pillars arranged along the vertical direction on the left and right side walls of the storage room, respectively, and a structure that removably extends to the plurality of shelf pillars on each of the left and right side walls of the storage room. It has a shelf support on which it can be hung. The shelf pillar is provided with locking holes at predetermined intervals in the vertical direction, and includes a convex member in which a portion provided with the locking holes protrudes toward the indoor side of the storage room. a plate-like member extending in the direction and disposed between the convex member and the side wall, and the plate-like member is integrated with the convex member. Accordingly, the present invention is characterized in that the rigidity of the convex member is increased.

In the above configuration, the shelf pillar is constructed by integrating the convex member and the plate member, thereby increasing its rigidity. Therefore, according to such a cooling storage, for example, even if no shelves are placed on the shelf supports, the shelf pillars and the shelf supports will generate contact noise (chattering noise) due to vibrations caused by the driving of the cooling device. Emissions are suppressed. As a result, a cooled storage with reduced noise generation is provided.

In a preferred embodiment of the cooling storage, the plurality of shelf columns are fixed to the side wall by fastening means, and the convex member and the plate member are integrated by welding. . As described above, a cooling storage with a structure in which the shelf pillars are fixed to the side wall by fastening means such as rivets is easy to manufacture, but the shelf pillars and shelf supports may easily generate noise due to vibration. There are concerns. On the other hand, if the convex member of the shelf pillar and the plate member are tightly fixed by welding, it is difficult for rattling to occur between the convex member and the plate member, and thus noise is less likely to be generated. In addition, it is also possible to suppress noise caused by vibration between the shelf pillar and the side wall. It is preferable to apply the technology disclosed herein to such a cooling storage because its effects can be significantly exhibited.

In a preferred aspect of the cooling storage, the shelf pillar is fixed to the side wall at a plurality of fixed positions by the fastening means, and the convex member and the plate member are fixed to each other at a plurality of fixed positions. They are integrated by spot welding above and below the position and between the plurality of fixed positions. According to such a configuration, the advantages of fixing by the fastening means and fixing by spot welding can be effectively utilized, and the generation of noise from the shelf pillars can be effectively suppressed.

In a preferred embodiment of the cooling storage, the convex member and the plate member have substantially the same outer shape along the side wall of the storage chamber. According to such a configuration, the convex member and the plate member can be reliably and easily integrated, the rigidity of the shelf pillar can be effectively increased, and the shelf board and shelf support can be attached easily. It is possible to realize a shelf support structure that has an excellent appearance when not in use.

In a preferred embodiment of the cooling storage, the convex member is located at a central portion of the storage chamber in the front-rear direction, and is provided with the locking hole and protrudes toward the indoor side of the storage chamber. a convex surface portion that extends from both ends of the convex surface portion in the front-rear direction toward the side wall and supports the convex surface portion; a pair of substrate parts that are spaced apart from each other and extend in a direction along the surface of the side wall. The plate member is integrated with the convex member by spot welding at a peripheral edge portion of the wall portion of the substrate portion. According to such a configuration, the rigidity of the shelf pillar can be further effectively increased.

In a preferred embodiment of the cooling storage, the convex member is located at a central portion of the storage chamber in the front-rear direction, and is provided with the locking hole and protrudes toward the indoor side of the storage chamber. a pair of wall portions supporting the convex portion and receding toward the side walls from both ends of the convex portion in the front-rear direction; a pair of substrate parts that are spaced apart from each other in the direction and abut on the side wall. The plate member has a shape corresponding to the wall portion, and is integrally attached to each of the opposing surfaces of the pair of wall portions. With this configuration, it is possible to effectively increase the rigidity of the convex member while suppressing an increase in the overall size and mass of the shelf column, and suppress the generation of contact noise between the shelf column and the side wall due to vibration. can do.

In a preferred embodiment of the cooling storage, the cooling device includes a compressor and a condenser arranged in the machine room, a cooler arranged at an upper part in the storage room, and an air flow from the machine room into the storage room. The refrigerant pipe is characterized in that it includes a refrigerant pipe that connects the compressor, the condenser, and the cooler. In a cooling storage with such a configuration, the cooling device is disposed above and below the storage room, and vibrations caused by driving the cooling device are easily transmitted to the shelf support structure. Therefore, it is preferable to apply the technique disclosed herein because its effects can be more clearly exhibited. In addition, a cooling storage with such a configuration is able to circulate cold air appropriately within the storage room, and by arranging relatively heavy components such as the compressor and condenser below the storage room, the center of gravity of the cooling storage is improved. can be lowered. Thereby, the cooling storage can be moved safely and smoothly even when a plurality of shelf boards are placed thereon.

According to the present invention, it is possible to provide a cooling storage in which the generation of contact noise between a shelf support and a shelf post due to vibration of a cooling device is suppressed.

A perspective view showing a cooling storage with the door of the storage room closed according to an embodiment A perspective view showing a state in which the door of a cooling storage having a storage room with a shelf structure is opened. Front view showing a state in which the door of a cooling storage having a storage room with a shelf structure is opened Cross-sectional view of the cooling storage with the storage door closed (cross-section taken along line A-A in Figure 1) A view of the machine room from above Exploded perspective view of shelf pillars in shelf board structure Plan view of convex member in shelf column An enlarged perspective view of the main parts of the shelf support in the shelf board structure An enlarged side view of the main parts of the shelf structure A plan view of a convex member according to another embodiment A cutaway perspective view of a main part of a convex member according to another embodiment

The technology disclosed herein will be described based on a cooling storage 10 according to an embodiment with reference to FIGS. 1 to 8. Note that the symbols F, Rr, L, R, U, and D shown in each figure indicate the front, rear, left, right, upper, and lower, respectively, and the symbols IN and OUT respectively indicate the storage chamber 15, which will be described later. The indoor and outdoor sides are shown. However, the above-mentioned direction is only determined for convenience and should not be interpreted in a limited manner.

As shown in FIG. 1, the cooling storage 10 includes a truck section 12 having a plurality of casters (wheels) 11, and a vertically elongated storage main body 13 erected on the truck section 12. It is configured so that it can be easily moved by rotating the casters 11. As shown in FIGS. 2 to 4, the storage main body 13 includes a storage chamber 15 in which stored items can be stored, and a machine room 16 disposed below the storage chamber 15.

The storage room 15 is in the shape of a casing with a front opening, and a storage space is formed by a left side wall 15A, a right side wall 15B, a ceiling wall 15C, a back wall 15D, and a bottom wall 15E. As shown in FIGS. 1 and 2, the door 14 is rotatably attached to the right edge of the opening of the storage room 15 via a pair of hinge parts 14A provided above and below. A handle 17 is provided on the left side of the door 14, and by operating this handle 17, the door 14 can be rotated about the hinge part 14A as a central axis, and the storage chamber 15 can be opened to the outside. , and can be closed off from the outside. Note that the insides of the walls 15A, 15B, 15C, 15D, 15E and the door 14 that partition the storage room 15 are filled with a heat insulating material, so that the storage room 15 has heat insulation properties. However, illustration of the heat insulating material is omitted in each figure. In addition, the indoor surfaces of the walls 15A, 15B, 15C, 15D, 15E and the door 14 are made of metal plates such as stainless steel and aluminum alloy, so that the storage room 15 can be cooled effectively. It has become.

The cooling storage 10 has a cooling device 30 for cooling the inside of the storage main body 13 (storage chamber 15). As shown in FIGS. 4 and 5, the machine room 16 is equipped with a machine room side unit 30A that constitutes a part of the cooling device 30. The machine room side unit 30A includes a condenser 31, a condenser fan 32, and a compressor 33. The machine room side unit 30A is arranged on the right side of the machine room 16, and is provided with a condenser 31, a condenser fan 32, and a compressor 33 in this order from the front. In addition to the machine room side unit 30A, the cooling device 30 includes refrigerant pipes 34A and 34B in which refrigerant is sealed, and a cooler 35 (evaporator) disposed in a cooler chamber 52 above the storage chamber 15, which will be described later. It is composed of and. The refrigerant pipes 34A and 34B extend rearward from the machine room unit 30A, and connect the machine room unit 30A and the cooler 35 of the cooler room 52 in a circulating manner. The refrigerant pipe 34A is a discharge side refrigerant that communicates from the compressor 33 to the cooler 35 via the condenser 31, and sends the refrigerant compressed by the compressor 33 and liquefied by the condenser 31 toward the cooler 35. It's a tube. The refrigerant pipe 34B is a suction-side refrigerant pipe that connects the cooler 35 and the compressor 33 and allows the refrigerant returned from the cooler 35 to be sucked into the compressor 33 again.

As shown in FIGS. 3 and 4, the cooler 35 is fixed to the lower surface of the ceiling wall 15C, and is located above the storage chamber 15 inside the cooler chamber 52 defined by the housing member 51 and the ceiling wall 15C. is housed in. The refrigerant pipes 34A and 34B are bent upward at the right rear end of the machine room 16, extend from the machine room 16 into the storage room 15, and are connected to the cooler 35 in the cooler room 52. has been done. In the storage chamber 15, the refrigerant pipes 34A and 34B are arranged along the corner of the back wall 15D and the right side wall 15B, and the lower part of the refrigerant pipes 34A and 34B than the housing member 51 is It is covered by a refrigerant pipe cover 50 attached along the right back corner inside the storage chamber 15.

The housing member 51 is attached so as to hang down from the ceiling wall 15C in front of the cooler 35, and includes a metal spacer 51A that secures the height of the cooler chamber 52, and a rearward tilted position below the spacer 51A. and a resin air duct 51B attached to the air duct 51B. The air duct 51B is provided with an internal fan 53 in front of the cooler 35, and when the internal fan 53 operates, the internal air in the storage room 15 is sent to the cooler room 52. Further, in front of the cooler 35 in the cooler chamber 52, as shown in FIG. 4, an internal thermistor 55 is installed to detect the temperature of the internal air sent by the internal fan 53. A gap 54 is provided between the rear end of the air duct 51B and the back wall 15D, and this gap 54 serves as an outlet of the cooler chamber 52. In such a cooling storage 10, when the cooling device 30 is driven and the internal fan 53 is operated, the internal air of the storage compartment 15 is sucked into the cooler chamber 52 by the internal fan 53, and the air is transferred to the cooler. 35, the cold air becomes cold air through heat exchange, and is blown out from the gap 54 into the storage chamber 15 along the inner surface of the rear wall 15D, and the cold air is circulated and supplied into the storage chamber 15. Further, the internal temperature of the refrigerator is detected by the internal refrigerator thermistor 55, and operation and stop of the cooling device 30 are controlled according to the internal temperature of the refrigerator, so that the internal temperature of the refrigerator is maintained at a predetermined cooling temperature. .

Note that the air duct 51B also functions as a drain pan. The air duct 51B has a bottom surface that slopes downward toward the rear, so that water dripping from the cooler 35 onto the bottom surface of the air duct 51B flows toward the rear. A drain hose 60 is connected to the rear end of the air duct 51B. The drain hose 60 passes through the inside of the back wall 15D of the storage main body 13 and extends to the machine room 16. As shown in FIG. 5, the lower end of the drain hose 60 is open above the drain tank 42, and the defrosting water generated in the cooler chamber 52 flows down the drain hose 60 and collects in the drain tank 42. It has become.

Further, as shown in FIGS. 2 to 4, a shelf support structure 20 made of metal such as stainless steel or aluminum alloy is provided in the storage chamber 15. Roughly speaking, the shelf support structure 20 includes a shelf post 21 and a tray guide 25 (shelf support). ) can be placed singly or in multiples in a vertically aligned manner. Specifically, one shelf post 21 is fixed to each of the left and right side walls 15A and 15B in the storage room 15 at the front and rear. The shelf pillar 21 is provided with a plurality of locking holes 23 at predetermined intervals in the vertical direction, and the tray guide 25 is inserted into the front and rear shelf pillars 21 in a substantially horizontal position on each of the left and right side walls 15A, 15B. It is designed to be removably attached so that it can be attached to the camera. A pair of tray guides 25 are installed at the same height of the left and right shelf pillars 21, and one tray 26 can be placed on the pair of tray guides 25. It has become. In such a shelf support structure 20, the structure of the shelf pillar 21 is the same on the front, back, left and right sides, and the structure of the tray guide 25 is the same on the left and right sides. Therefore, the following description of the shelf support structure 20 will be based on the shelf support structure 20 provided on the left side wall 15A, and description of the right shelf support structure 20 will be omitted as appropriate.

As shown in FIG. 4, the shelf pillar 21 has a roughly elongated columnar shape, and is installed on the left side wall 15A so that its longitudinal direction extends along the up-down direction. As shown in FIG. 6, the shelf pillar 21 includes a convex member 22 disposed on the indoor side of the storage room 15, and an outdoor side with respect to the convex member 22, that is, between the convex member 22 and the left side wall 15A. and a plate-like member 24 disposed between them.

The convex member 22 has a convex cross-sectional shape, in which a long flat plate material is protruded toward the indoor side so that the cross-sectional shape is U-shaped at the center portion in the short direction. I am doing it. Specifically, the convex member 22 has a convex surface portion 22A, a pair of wall portions 22B, and a pair of substrate portions 22C. The convex surface portion 22A is a central portion in the transverse direction that is arranged so as to correspond to the front-rear direction, and is provided with a locking hole 23, which will be described later, and is a flat surface that projects toward the indoor side with respect to the base plate portion 22C. It is a part. The pair of wall portions 22B are portions that support the convex portion 22A while being spaced apart from the left side wall 15A by retreating toward the left side wall 15A from both ends of the convex portion 22A in the front-rear direction. The pair of substrate portions 22C are planar portions that are continuous with the ends of the pair of wall portions 22B along the left side wall 15A and extend in directions away from each other (separated in the front-rear direction) along the surface of the left side wall 15A. It is.

As shown in FIG. 6, a plurality of locking holes 23 are formed through the convex portion 22A at predetermined intervals in the vertical direction. Each of the locking holes 23 is formed as a rectangular hole extending in the horizontal direction (front-back direction), and the center portion in the front-back direction is slightly longer than the front-back dimension of the locking claw 25A of the tray guide 25, which will be described later. The width is widened downward so that the locking claw 25A of the tray guide 25 can be stably accommodated.

The plate member 24 is a member for increasing the rigidity of the convex member 22, and is integrated with the convex member 22. In this embodiment, the convex member 22 and the plate-like member 24 are configured so that the outer shape of the surface along the left side wall 15A is approximately the same, and when they are overlapped, the base of the convex member 22 is The outline of the portion 22C and the outline of the plate-like member 24 are made to match. Further, in this embodiment, the plate member 24 is integrated with the convex member 22 by spot welding. A fusion joining method such as spot welding is a joining method in which at least one of the joining material and the material to be joined is melted and solidified, and is performed through its own liquid phase without going through another material. Because it is bonded, it is characterized by the fact that gaps are unlikely to form at the bonding interface. Therefore, there is an advantage that rattling is less likely to occur between the plate member 24 and the convex member 22 after joining, and chattering noise is less likely to occur even if vibration or the like is applied. In this embodiment, the plate member 24 and the convex member 22 are spot welded at a plurality of welding points W, as shown in FIGS. 6 and 7. Note that the method of joining the convex member 22 and the plate member 24 is not limited to this, and includes fusion joining methods such as arc welding, laser welding, and electron beam welding, as well as solid phase joining methods such as ultrasonic welding. , and other joining methods may also be used. The shelf post 21 is prepared by integrating the plate member 24 and the convex member 22.

Further, in this embodiment, the shelf post 21 is fixed to the left side wall 15A by mechanical fastening means such as rivets. More specifically, the shelf pillar 21 is fixed to a metal plate forming the indoor surface of the left side wall 15A of the storage room 15 using a plurality of rivet fasteners. For example, even if the total thickness of the shelf pillar 21 (joining material) and the plate material of the left side wall 15A (joint material) is thick, the joining using rivets can be performed by connecting the respective materials as shown in FIGS. 6 and 7. It is convenient in that it can be fastened without the need for heating means, etc. by providing a fastening hole CH in the hole CH, inserting a rivet fastener (intermediate material) of an appropriate shape, and plastically deforming (caulking) the rivet fastener. . It is also advantageous in that the shelf post 21 and the plate material can be fastened together from one side (here, the shelf post 21 side).

Note that it is not preferable to overlap the welding point W and the fastening hole CH in the shelf post 21 because it becomes difficult to obtain the effect of increasing the rigidity of the convex member 22 by the plate member 24. Therefore, in determining the arrangement of the welding point W and the fastening hole CH in the shelf post 21, it is preferable to first determine the position of the welding point W in the convex member 22. For example, as shown in FIG. 7, the welding point W on the convex member 22 is located in an area closer to the wall portion 22B than the center in the transverse direction in each of the pair of substrate portions 22C that is in contact with the plate-like member 24. It is good to have one. The convex member 22 has high rigidity near the bent portion that is the boundary between the wall portion 22B and the substrate portion 22C due to its shape, and is bonded to the plate-like member 24 at the peripheral portion of the wall portion 22B. By doing so, shaking and deformation of the convex member 22 due to vibration can be effectively suppressed, and this is suitable for increasing the rigidity of the shelf post 21 as a whole. Further, although the position in the longitudinal direction of the welding point W on the convex member 22 depends on the longitudinal dimension of the shelf post 21, for example, the position at both the upper and lower ends, the central part, and the intermediate part thereof, It can be about a point. Regarding the plate member 24, it is preferable to provide a welding point W at a position corresponding to the welding point W of the convex member 22.

Note that when spot welding the convex member 22 and the plate member 24, the correspondence between the convex member 22 and the plate member 24 is determined in order to precisely overlap the convex member 22 and the plate member 24 without misalignment. It is preferable to provide positioning holes P for positioning at the respective positions. The positioning holes P may be provided, for example, at four corners of the area where the convex member 22 and the plate member 24 are brought into contact, and at positions that do not interfere with the welding point W and the fastening hole CH.

The fastening holes CH for fastening the shelf post 21 to the left side wall 15A with rivets are preferably provided in areas near both ends of the shelf post 21 in the transverse direction, for example, as shown in FIG. In each of the pair of substrate parts 22C, the fastening hole CH is preferably provided in a region closer to the end opposite to the wall part 22B than the center in the lateral direction. Although the positions of the fastening holes CH in the longitudinal direction of the shelf post 21 depend on the longitudinal dimensions of the shelf post 21, for example, the positions of the fastening holes CH in the longitudinal direction of the shelf post 21 are about four points, including the upper and lower ends and two points between these. can do. Note that fastening holes CH may be provided in corresponding positions for both the convex member 22 and the plate member 24. Here, regarding the convex member 22, since the shape of the locking hole 23 has an upper and lower distinction, in order to prevent the convex member 22 from being attached upside down to the left side wall 15A, a pair of base plate portions are attached. The vertical position of the fastening hole CH may be made different between the board part 22C arranged on the front side in the front-rear direction and the board part 22C arranged on the rear side of the board part 22C. In FIG. 7, regarding the two fastening holes CH arranged near the center in the vertical direction, the two fastening holes CH arranged in the front (left side in the figure) are relatively separated in the vertical direction, and the two fastening holes CH ) is arranged so as to be relatively close to each other in the vertical direction.

As shown in FIG. 9, the tray guide 25 has a substantially L-shaped cross-sectional shape when viewed from the front, and is longer than the distance between the two shelf pillars 21, 21 disposed at the front and rear of the left side wall 15A. It is formed to be long. Further, the tray guide 25 is composed of a vertical surface portion extending along the left side wall 15A, and a horizontal surface portion extending horizontally from this vertical surface portion toward the indoor side. As shown in FIG. 8, each is provided with locking claws 25A, 25A that are removably locked in locking holes 23, 23 of the shelf pillars 21, 21 at the same height. The locking pawl 25A moves back a predetermined dimension (same or slightly larger than the thickness of the convex surface portion 22A) from the vertical surface toward the shelf pillar 21 (outdoor side) and then extends upward, thereby eliminating the step. forming a section. After inserting these locking claws 25A, 25A into the widened portions of the locking holes 23, 23, the tray guide 25 inserts the vertical surface portions with the stepped portions resting on the lower hole wall surfaces of the locking holes 23, 23. By placing it along the convex surface portion 22A, it can be attached to the shelf pillars 21, 21 at a predetermined height position with the horizontal surface portion extending horizontally toward the indoor side. As shown in FIG. 9, a tray 26 can be placed on a pair of opposing tray guides 25 mounted at the same height on the opposing side walls 15A, 15B.

When the tray 26 is placed on the tray guide 25, a downward force is applied to the horizontal surface portion of the tray guide 25. At this time, since the stepped portion of the tray guide 25 is placed in the locking hole 23, the downward force is converted into a force that rotates the tray guide 25 (clockwise in FIG. 9) using the stepped portion as a fulcrum. Below the stepped portion, the vertical surface portion contacts the convex portion 22A from the indoor side, and above the stepped portion, the locking pawl 25A abuts the convex portion 22A from the outdoor side, thereby regulating the rotation of the tray guide 25. ing. This allows the tray guide 25 to stably support the tray 26 and the stored items against downward force. On the other hand, when the tray 26 is not placed on the tray guide 25, the indoor end of the horizontal surface portion of the tray guide 25 becomes a free end, and the vibration generated when the cooling device 30 is driven, for example, causes the tray to move upward and downward. It has a structure that allows it to swing. Since both the shelf pillar 21 and the tray guide 25 are made of metal, even a slight vibration may generate a slight contact sound. Therefore, as described above, the rigidity of the shelf post 21 is increased, the vibration of the shelf post 21 itself is suppressed, and the vibration from the cooling device 30 is difficult to propagate to the tray guide 25 via the shelf post 21. As a result, in the cooling storage 10, the generation of contact noise between the shelf pillars 21 and the tray guides 25 is suppressed.

According to the cooling storage 10 having the above configuration, in the shelf support structure 20 provided in the storage room 15, the shelf pillars 21 are provided with the locking holes 23 at predetermined intervals in the vertical direction, and the locking holes 23 are provided with the locking holes 23 at predetermined intervals in the vertical direction. A convex member 22 whose provided portion protrudes toward the indoor side of the storage chamber 15, and a plate-like member 24 extending in the vertical direction and disposed between the convex member 22 and the side wall 15A. The plate member 24 is integrated with the convex member 22, thereby increasing the rigidity of the convex member 22. Therefore, for example, even if the tray 26 is not placed on the tray guide 25 and the shelf post 21 and the tray guide 25 are not locked together by the tray 26, the shelf post 21 and the tray guide 25 may be locked together. This suppresses generation of minute contact sounds (chattering sounds) due to vibrations caused by the driving of the cooling device 30. As a result, a cooled storage with reduced noise generation is provided.

Further, the two shelf pillars 21 provided in the front and rear are each fixed to the left and right side walls 15A, 15B with rivet fasteners, and the convex member 22 and plate member 24 are connected by spot welding. It is integrated. Although the cooling storage 10 in which the shelf pillars 21 are fixed to the side walls 15A and 15B by fastening means such as rivets has good workability in manufacturing, there is a gap at the joint interface because the joint is made using other members. There is a concern that vibrations caused by the driving of the cooling device 30 will be amplified and the shelf pillars 21 and tray guides 25 will be likely to generate noise. By applying the shelf support structure 20 disclosed here to such a cooling storage 10, the vibration of the shelf pillars 21 themselves can be suppressed, and the effect of suppressing the generation of contact noise with the tray guides 25 can be significantly exhibited. can.

Further, the convex member 22 and the plate member 24 have a configuration in which the outer shapes of the surfaces along the left and right side walls 15A, 15B of the storage chamber 15 are substantially the same. The convex member 22 is provided with a locking hole 23 at the center portion in the transverse direction, and includes a convex portion 22A projecting toward the indoor side, and a side wall extending from both ends of the convex portion 22A in the transverse direction. A pair of wall portions 22B, 22B that retreat toward 15A, 15B and support the convex surface portion 22A, and a pair of wall portions 22B, 22B that are continuous with the pair of wall portions 22B, 22B, respectively, and spaced apart in the front-rear direction, and that are attached to the surfaces of the side walls 15A, 15B. It is configured to include a pair of substrate parts 22C, 22C extending in the direction along the line. The plate member 24 is characterized in that it is integrated with the convex member 22 by spot welding at the peripheral edge portions of the wall portions 22B, 22B of the base plate portions 22C, 22C. According to such a cooling storage 10, the convex member 22 and the plate member 24 can be reliably and easily integrated, the rigidity of the shelf pillar 21 can be effectively increased, and the tray guide 25 can be Moreover, even when the tray 26 is not attached, a shelf support structure with excellent appearance can be realized.

The cooling device 30 also includes a compressor 33 and a condenser 31 arranged in the machine room 16 , a cooler 35 arranged in a cooler room 52 above the storage room 15 , and a cooler 35 arranged inside the storage room 15 from the machine room 16 . It includes refrigerant pipes 34A and 34B that enter the refrigerant pipe and connect the compressor 33, condenser 31, and cooler 35. In the cooling storage 10 having such a configuration, the cooling device 30 is disposed above and below the storage chamber 15, and vibrations caused by driving the cooling device 30 are easily transmitted to the shelf support structure 20. There is. Therefore, it is preferable to apply the technology disclosed herein because the noise suppression effect can be more clearly exhibited. In addition, the cooling storage 10 having such a configuration can appropriately circulate cold air within the storage chamber 15, and relatively heavy members such as the compressor 33 and the condenser 31 are disposed below the storage chamber 15. As a result, the center of gravity of the cooling storage 10 can be lowered. Thereby, even when a plurality of trays 26 are placed thereon, the cooling storage 10 can be moved safely and smoothly.

<Other embodiments>
The technology disclosed herein is not limited to that disclosed in the above embodiments, and, for example, the following aspects are also included within the technical scope disclosed herein. Further, the technology disclosed herein can be implemented in various modified forms without departing from the essence thereof.

(1) The fastening position of the shelf column 21 to the side walls 15A, 15B (for example, the fastening hole CH), the fixing position of the convex member 22 and the plate member 24 (for example, the welding point W), and the relative positional relationship thereof is not limited to what is disclosed in the above embodiments. For example, the fastening positions of the shelf post 21 to the side walls 15A and 15B may be at equal intervals in the vertical direction, as shown in FIG. 10, or may be at the same height position at the front and rear of the shelf post 21. . Furthermore, the fixed positions of the convex member 22 and the plate-like member 24 may be on the end side of the fastening position at the four corners of the shelf post 21. That is, the fixed positions of the convex member 22 and the plate-like member 24 may be arranged above and below the plurality of fastening positions, and between the plurality of fastening positions (for example, approximately at the center).
(2) Furthermore, the dimensions and shape of the plate member 24 integrated into one convex member 22, and the manner of integration thereof are not limited to those disclosed in the above embodiment. For example, the dimensions and shape of the plate-like member 24 do not need to match the outer shape of the convex member 22, and the position where it is integrated is not limited to the base plate portion 22C of the convex member 22. For example, the plate member 24 may have a shape corresponding to a portion of the convex member 22 (here, the wall portion 22B), as shown in FIG. Further, the plate member 24 having a shape corresponding to the wall portion 22B in this manner may be integrated into one of the opposing (outdoor side) surfaces of the pair of wall portions 22B, or , as shown in FIG. 11, one each (two in total) may be integrated on both opposing surfaces of the pair of wall portions 22B. The method of integration in this case is not particularly limited, and may be, for example, spot welding or bonding using bonding means such as adhesive.
(3) Furthermore, in the above embodiment, the plate member 24 is provided over the entire length of the convex member 22 in the longitudinal direction, but the present invention is not limited thereto. For example, the rigidity of the convex member 22 can be increased by integrating the plate member 24 into the convex member 22, even if only slightly. However, from the viewpoint of clearly exhibiting the effect of improving rigidity and further suppressing noise, the plate-like member 24 should be, for example, 1/3 or more (preferably 2/3 or more, e.g. 3/3) of the length of the convex member 22 in the longitudinal direction. 4 or more).
(4) In the above embodiment, the plate member 24 is made of a metal material, but is not limited to this. For example, the plate-like member can be made of various inorganic materials, organic materials, composite materials of these and metal materials, etc., as long as the rigidity of the convex member can be increased and it can be integrated into the convex member. may be configured. However, from the viewpoints of ease of manufacture, durability/durability in low-temperature environments, compliance with food hygiene laws, etc., it is preferable to use a metal material.
(5) In addition to the embodiments described above, the arrangement of the machine room containing the compressor and the condenser in the cooling storage can be changed as appropriate. In the above embodiment, the machine room is arranged below the storage room, but the present invention is not limited to this, and for example, the machine room may be arranged above the storage room.

10...Cooling storage, 11...Casters (wheels), 13...Storage main body, 15...Storage room, 16...Machine room, 20...Shelf support structure, 21...Shelf pillar, 22...Convex member, 24...Plate member, 25...tray guide (shelf support), 26...tray (shelf board), 30...cooling device, W...welding point, CH...fastening hole, P...positioning hole

Claims (7)

A movable cooling storage that includes a storage main body, a cooling device for cooling the inside of the storage main body, and a plurality of wheels arranged on the lower side of the storage main body,
The storage main body has a box-like shape that opens to the front, and includes a storage chamber that has a shelf support structure on which a plurality of shelf boards can be placed vertically side by side,
The shelf support structure is
a plurality of shelf pillars arranged along the vertical direction on the left and right side walls of the storage room, respectively;
Each of the left and right side walls of the storage room includes a shelf support that is removably spanned over the plurality of shelf pillars,
The shelf pillar is
a convex member having locking holes provided at predetermined intervals in the vertical direction, and a portion where the locking holes are provided protrudes toward the indoor side of the storage chamber;
a plate-shaped member extending in the vertical direction and disposed between the convex member and the side wall;
The cooling storage is configured such that the plate member is integrated with the convex member to increase the rigidity of the convex member. The plurality of shelf pillars are fixed to the side wall by fastening means, and
The cooling storage according to claim 1, wherein the convex member and the plate member are integrated by welding. The shelf post is fixed to the side wall at a plurality of fixed positions by the fastening means,
According to claim 2, the convex member and the plate member are integrated by spot welding above and below the plurality of fixed positions and between the plurality of fixed positions. Cold storage as described. The cooling storage according to claim 1, wherein the convex member and the plate member have substantially the same outer shape on a surface along the side wall of the storage chamber. The convex member is
a convex portion that is a central portion of the storage chamber in the front-rear direction and is provided with the locking hole and protrudes toward the indoor side of the storage chamber;
a pair of wall portions that extend backward from both ends of the convex surface portion in the front-rear direction toward the side wall and support the convex surface portion;
a pair of substrate portions that are respectively continuous with the pair of wall portions and spaced apart from each other in the front-rear direction and extend in a direction along the surface of the side wall;
It is configured with
The cooling storage according to claim 1, wherein the plate member is integrated with the convex member by spot welding at a peripheral edge portion of the wall portion of the substrate portion. The convex member is
a convex portion that is a central portion of the storage chamber in the front-rear direction and is provided with the locking hole and protrudes toward the indoor side of the storage chamber;
a pair of wall portions that support the convex surface portion and recede from both ends of the convex surface portion in the front-rear direction toward the side wall;
a pair of substrate portions that are connected to the pair of wall portions and that are spaced apart from each other in the front-rear direction and abut the side walls;
It is configured with
The cooling storage according to claim 1, wherein the plate-like member has a shape corresponding to the wall portion and is integrally attached to each of opposing surfaces of the pair of wall portions. The cooling device includes:
A compressor and a condenser arranged in the machine room ,
a cooler disposed in the upper part of the storage chamber;
a refrigerant pipe that enters the storage room from the machine room and connects the compressor, the condenser, and the cooler;
The cooling storage according to any one of claims 1 to 6, characterized by comprising:

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