JP3233783B2 - Low-temperature preservation goods delivery and delivery vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle for efficiently transporting and delivering perishable foods such as fruits and vegetables, seafood, and other low-temperature preserved products.

[0002]

2. Description of the Related Art For short-distance transportation of fruits, vegetables, dairy products, and fresh fish, a refrigerated vehicle in which an insulating wall is provided inside an aluminum van truck and the inside is cooled with dry ice or ice is mainly used. Have been. In addition, for long-distance transportation and transportation of frozen fish and frozen meat, etc., to keep the temperature in the luggage compartment at a constant temperature, a refrigerated car equipped with a refrigerator on the roof of the driver's cab or in the upper front of the luggage compartment or refrigerated Cars are used. In that case,
There is a method in which the operating power is obtained from a motor of an automobile, and a method in which the operating power is obtained from another independent motor. In some cases, a cooling gas such as liquid nitrogen is blown into the luggage compartment without using a mechanical refrigerator.

[0003]

Among those described above, those that cool the luggage compartment with dry ice or ice are inferior in terms of cooling capacity and temperature control, and are used only for transporting a very limited range of goods and areas. Can not do it. Also, in the case of a machine equipped with a mechanical refrigerator and a blow-in machine such as liquid nitrogen (which will be equipped with a high-pressure cylinder), not only are they considerably heavy, but also because of their considerable weight. Space must be devoted and running costs increase. Further, if there are many opportunities to open and close the doors when loading and unloading luggage, it is difficult to control the temperature, and when a high-pressure cylinder is mounted, handling is not easy, and safety problems remain.

[0004] As described above, there are many problems in the conventional low-temperature preservation goods delivery / delivery vehicle, and it can be generally pointed out that economic efficiency is poor. Therefore, the present invention provides a low-temperature preservation product transportation / delivery vehicle which is easy to handle, has no problem of weight and space, can manage required temperature, and can extremely efficiently transport / ship low-temperature preservation products. As an issue.

[0005]

According to the present invention, there is provided a box-shaped luggage compartment having heat insulation, and a porous, mesh-like or the like surrounding the periphery of the luggage compartment at an appropriate distance from the ceiling. A cooling plate is installed, and a liquefied gas inlet is provided above the cooling plate at an upper part of the side surface of the luggage compartment, and the liquefied gas inlet is opened by being pressed from the outside to remove the pressing force. The above problem has been solved by using a low-temperature preservation goods transportation / delivery vehicle that is configured to be closed.

At the time of shipment, liquefied carbon dioxide, liquefied nitrogen and the like are supplied by inserting a liquefied gas supply insert into the liquefied gas inlet, and a layer of snow dry ice or the like is formed on the cooling plate. By cooling rapidly, the freshness of cold-preserved items can be maintained for about one day in the luggage compartment.
In addition, a liquefied gas supply device is prepared at a distribution center, a store, or the like, and the liquefied gas is supplied at appropriate times, so that the temperature of the luggage compartment during transportation can be maintained at a low temperature.

[0007]

Embodiments of the present invention will be described with reference to the accompanying drawings. In the drawing, reference numeral 1 denotes a low-temperature storage goods delivery / delivery vehicle according to the present invention (rear door opening type), which has a box-shaped luggage compartment 2 made of aluminum, which is generally covered with an insulating material on an inner wall. There is no need to equip a refrigerator or mount a high-pressure cylinder. On the ceiling of the luggage compartment 2, a stainless steel cooling plate 3 of a perimeter, a net shape, a mesh shape or the like, which is generally surrounded, is installed at an appropriate distance from the ceiling. A liquefied gas injection port 4 is formed in the upper part of the side surface of the luggage compartment 2 so as to open above the cooling plate 3. The liquefied gas injection port 4 is opened by being pushed from the outside, and is configured to be hermetically closed by the action of a spring, a magnet or the like as the pushing force is removed.

Reference numeral 5 denotes a liquefied gas supply device installed at a production center factory, a distribution center, or the like, and includes a liquefied gas cylinder 6 for liquefied carbonic acid, liquefied nitrogen, etc., and a liquefied gas supply insert 7. Since the insert 7 will be inserted into the liquefied gas inlet 4,
Both have corresponding shapes. The insert 7 is preferably
The shape is a flat horizontally long box. The supplied liquefied gas is solidified on the cooling plate 3, and in the case of liquefied carbon dioxide, it becomes snow dry ice to cool the room.

Next, the structure of the cooling plate 3 and the insert 7 will be described in more detail with reference to FIGS. 3 in FIG.
Is connected to the high pressure hose 9 of the liquefied gas cylinder 6 by the pressure regulating valve 10.
And a branch nozzle 11 is connected to the solenoid valve. The branch nozzle 11 branches into a plurality (3 in the figure), and each tip nozzle port 12 enters an injection path 13 provided in the insert 7. The inside of the injection path 13 is directed in the direction of entry into the liquefied gas inlet 4 of the insert 7, while the outside is directed outward. This is to ensure that the cooling gas is uniformly distributed in each of the plurality of (three in the figure) cooling chambers.

A space muffler 14 having an opening only at the front surface is provided between the injection paths 13, and a gas vent hole 15 is formed at the rear end side, that is, at the upper surface of a portion which does not enter the liquid gas inlet 4.
Is formed. This muffler 14 is for absorbing and discharging gas pressure accompanying high-pressure gas injection. In addition, the gas vent hole 15 will be arrange | positioned in the main body 16. FIG.
Reference numeral 17 denotes a temperature sensor provided in the muffler 14.

As described above, the cooling chamber 18 is usually divided into several chambers by the partition 19, in which case the partition 19 near the liquefied gas inlet 4 is inclined toward the liquefied gas inlet 4 (see FIG. 4). Thus, the gas injected from the injection path 13 is guided to be distributed evenly in each chamber.

The room temperature can be adjusted by adjusting the supply amount of the liquefied gas. Further, for example, it is also possible to provide an adjustment by slidably attaching a control plate below the cooling plate 3 and changing the cooling air discharge area by sliding the control plate. In addition, the liquefied gas injection port 4 may be provided in each of the partition chambers. In addition, it is also possible to control the release of cold air from each partition room (the above-mentioned control plate may be used), so that one of the partitions can be stored in reserve.

In FIG. 5, reference numeral 21 denotes a curtain such as a roll curtain hung on the cooling plate as appropriate, and reaches the floor of the luggage compartment 2. It is preferable that the curtain 21 be movable back and forth (in the direction of the arrow in the figure). Needless to say, this curtain 21 is for preventing the escape of cold air as much as possible when the door is opened. With this curtain 21, it is possible to stack the luggage and cope with several-order delivery.

The liquefied gas supply device 5 may be operated manually, but is preferably automated. That is, when the insert 7 is Y,
A sensor for detecting the position of the liquefied gas inlet 4 is attached to the insert 7 in a two-axis robot of Z-axis or a three-axis robot of X, Y, and Z axes. Thus, when the vehicle is stopped at a predetermined position, the robot operates based on the action of the sensor, and the insert 7 is guided to the liquefied gas inlet 4.

The transportation and delivery vehicle according to the present invention is intended mainly for one-time transportation, that is, for direct transportation from a shipping point to a destination, and usually carries out loading and unloading of goods on the way. Absent. Therefore, sufficient temperature management in the luggage compartment becomes possible. In the case of several orders, the curtain 2
1 may be used. When used for medium-long distance transportation, it is only necessary to stop at the liquefied gas supply device installation location on the way.

[0016]

As described above, the present invention does not require the installation of a refrigerator or a high-pressure cylinder for transportation and delivery, which saves cost and space, and maintains the baggage compartment at an appropriate temperature. It can transport low-temperature preserved products, is easy to handle, is very economical, and can greatly contribute to promoting the distribution of low-temperature preserved products.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a rear view showing the embodiment of the present invention.

FIG. 3 is a partially cutaway perspective view showing a main part of the present invention.

FIG. 4 is a cross-sectional view of an embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Low-temperature storage and delivery vehicle 2 Luggage compartment 3 Cooling plate 4 Liquefied gas inlet 5 Liquefied gas supply device 6 Liquefied gas cylinder 7 Insert 8 Solenoid valve 11 Branch nozzle 12 Nozzle port 13 Injection path 14 Muffler 15 Gas vent 18 Cooling chamber 19 Partition

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-45759 (JP, A) JP-A-2-75872 (JP, A) JP-A-63-172872 (JP, A) JP-A-3-3 31669 (JP, A) Fully open 1987-38567 (JP, U) Fully open 1984-139416 (JP, U) Fully open, 55-15112 (JP, U) Fully open, 59-152371 (JP, U) 55-36774 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60H 1/32 F25D 3/00 B60P 3/20

Claims (4)

(57) [Claims] 1. A luggage compartment having a heat-insulating box-shaped luggage compartment, and a porous, mesh-like cooling plate surrounding the periphery of the luggage compartment is provided on the ceiling of the luggage compartment at an appropriate distance from the ceiling. A liquefied gas inlet opening above the cooling plate is provided at the upper side of the chamber, and the liquefied gas inlet is opened by pressing from the outside and closed by removing the pressing force. Preservation goods transportation delivery vehicle. (2) Changeable cold air discharge area from the cooling plate
The low-temperature preservation goods transportation and delivery vehicle according to claim 1, wherein 3. A partition is provided in a cooling chamber formed around the periphery of the cooling plate to divide the cooling chamber into a plurality of chambers.
2. The low-temperature-preserved goods transportation / delivery vehicle according to claim 1 , wherein the degree of release of the cold air can be made different in the vehicle. 4. The cooling plate according to claim 1 , wherein one or more curtains are suspended from the door of the luggage compartment so as to be movable in the front-rear direction.
Low temperature storage goods transportation and delivery vehicle according to.