JP2944566B2 - Cold storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open/close a pressure regulation port in turning a door opening/ closing device by mounting a knob on a shaft member in which an opening is turnably fixed by a heat-insulated door having a groove formed over the whole length in the longitudinal direction to form the door opening/closing device, and providing a pair of upper and lower lever parts to work as the lever in opening/closing a door and a knob fixing part on the shaft member. SOLUTION: A door opening/closing device 30 is formed by mounting a knob 35 on a shaft member 34 which is stored in a groove 5B formed in a heat-insulated door 5 over the whole length in the longitudinal direction, and turnably fixed thereto. The shaft member 34 comprises upper and lower lever parts which are turnably held relative to a heat-insulated box on each end and work as a lever to the heat-insulated door 5 in opening/closing the heat- insulated door 5, and a shaft part to be turned by the turning operation of the knob 35, and is provided with a fixing part to fix the knob 35. An pressure regulating lid 32 to open/close a pressure regulation port is interlocked with the turning operation of the door opening/closing device 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-temperature storage for cooling articles stored in a storage room by a cooling device.

[0002]

2. Description of the Related Art In a low-temperature storage provided with a heat insulating box having an opening on one side and a heat insulating door for opening and closing the opening, the opening is opened and closed by a handle provided on the heat insulating door. In this configuration, there is a disadvantage that the airtightness cannot be improved when the door is closed.

[0003] In view of the above, a shaft portion formed vertically is provided on the front surface of the heat-insulating door, a handle is attached to the shaft portion, and the shaft portion is rotated by opening and closing the heat-insulating door.
A lock mechanism provided above and below the shaft locks the heat-insulating door to improve the airtightness of the door.

[0004]

However, in the prior art, since the shaft is provided in front of the heat insulating door, only the shaft protrudes forward from the heat insulating door. There was a disadvantage that they could not be arranged.

[0005] Therefore, the present invention provides a low-temperature storage that can be efficiently arranged in a small space while improving the airtightness of the heat insulating door.

[0006]

[0007]

According to a first aspect of the present invention, there is provided a low-temperature storage box having an insulation box having a storage room, the opening of which is opened and closed by a heat insulation door having a groove formed over the entire length in the vertical direction, and a storage room. A shaft member rotatably fixed to the groove and a door opening / closing device including a handle attached to the shaft member, wherein the shaft member includes a pair of upper and lower levers that act as levers when opening and closing the heat insulating door. A pair of fixing portions for fixing the portion and the handle are provided.

[0008] The low-temperature storage of claim 2 is provided with a fixing member formed on the right and left sides of the groove in order to rotatably store the shaft member in the groove in addition to the first aspect.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

[0010] Reference numeral 1 denotes a low-temperature storage, which is called a cold roll box, which is mounted on a transportation means such as a truck to be transported to a destination and which can cool the stored articles during transportation. A low-temperature refrigerator will be described as an example.

The low-temperature refrigerator 1 is provided with wheels 2 for moving the bottom thereof, and has an opening 3 in the front surface, and a heat insulating box 4 having a ceiling wall 4A whose whole surface is inclined downward and backward. A storage room 6 formed by a closed heat-insulating door 5, and a cooling device 7, a blower 8, and a cool storage member 9 for cooling the storage room 6.
A wire fin condenser 1 formed by a compressor 11 disposed in a mechanical space M formed below the heat insulating box 4, the top wall 4A and a horizontal top plate 12 covering the top wall 4A.
3 and a space K having a substantially triangular longitudinal section for accommodating the blower 14 for the condenser. An air inlet 15 is formed at the rear of the top plate 12 and an air outlet 16 is formed at the front.

The storage room 6 is divided into two upper and lower rooms by a partition plate 20, the upper room being an article storage room 21, and the lower room being a freezing room 22.
And It is desirable that the partition plate 20 is detachably mounted or one end is rotatably disposed.

In the freezing chamber 22, a pipe-on-sheet type evaporator 7 as a cooling device, a blower 8 and a cold storage material 9 as a cool storage member are housed and arranged. Uses a DC blower that is driven.

Numeral 24 denotes a duct arranged along the back wall 4E of the heat insulating box 4. One end of the duct is opened at the upper part of the article storage chamber 21 to form an air outlet 23. It has an opening on the upper side, and has an article storage room 21 and a freezing room 22
At the rear thereof through the duct 24.
In addition, the article storage room 21 and the freezing room 22 communicate with each other at a front portion thereof through an inlet 25 formed at a front portion of the partition plate 20. Then, the cool air that has passed through the cold storage agent 9 in the freezing chamber 22 is guided through the duct 24 from the outlet 23 into the upper part of the article storage chamber 21, and a cool air circulation path Q that returns from the suction port 25 to the freezing chamber 22 is formed. .

Reference numeral 30 denotes a door opening / closing device that is rotatably provided with respect to the heat insulating door 5 and the heat insulating box 4 and that opens and closes the heat insulating door 5.
Reference numeral 1 denotes a pressure adjusting port provided in a first groove 5A formed at an appropriate position of the heat-insulating door 5 and communicates with the outside and the storage room 6. Reference numeral 32 denotes a pressure adjusting port 31 interlocked with a rotation operation of the door opening / closing device 30. It is a pressure adjustment lid that opens and closes.

The door opening / closing device 30 includes a second groove (a groove in the claims) 5 formed in the heat insulating door 5 over the entire length in the vertical direction.
B, a shaft member 34 rotatably fixed to the groove 5B, and a handle 3 attached to the shaft member 34.
5 The shaft member 34 is rotatably held at both ends with respect to the heat-insulating box 4, and is opened and closed when the heat-insulating door is opened and closed.
An upper and lower lever portion 36 acting as a lever with respect to the shaft portion 37, and a shaft portion 37 which is rotated by a rotation operation of the handle 35. The shaft portion 37 is provided with a fixing portion 38 for fixing the handle 35, and is rotatably held in the second groove 5B by the fixing members 39A and 39B while being housed in the second groove 5B. You.
5C is a door gasket.

Reference numeral 40 denotes a safety device for inhibiting the turning operation of the door opening / closing device 30 when the opening 3 is closed by the heat insulating door 5, and a first device for restricting the movement of the handle 35 in the front-rear direction.
Safety member 40A and second safety member 40B for preventing the handle 35 held by the first safety member 40A from rotating in the vertical direction.
By locking a key device such as a padlock in holes formed in each of the safety members 40A and 40B, the turning operation of the door opening / closing device (specifically, the handle 35) is prohibited. Therefore, the door opening / closing device 30 held by the safety device 40 does not accidentally come off due to vibration or the like during transportation of the low-temperature storage.

[0018]

According to the first aspect of the present invention, an insulating box having a storage room whose opening is openable and closable by an insulating door having a groove formed over the entire length in the longitudinal direction, A door member comprising a shaft member rotatably fixed to the shaft member and a handle attached to the shaft member, wherein the shaft member has a pair of upper and lower levers and a handle that acts as a lever when opening and closing the heat insulating door. By providing a pair of fixing portions for fixing the shaft member, the shaft member is exposed to the front surface in the same manner as the case where the shaft member is attached so as to protrude forward from the front surface of the door, so that the maintenance of the shaft member is facilitated. in addition,
Since the shaft member can be made flat without protruding forward from the heat insulating door, a plurality of low-temperature chambers can be efficiently arranged in a small space.

According to the second aspect of the present invention, in addition to the first aspect, a fixing member formed on the left and right sides of the groove is provided to rotatably store the shaft member in the groove. The member can be rotatably stored in the groove, and the strength of the heat insulating door can be improved.

[Brief description of the drawings]

FIG. 1 is an overall front perspective view.

FIG. 2 is an enlarged perspective view of a main part of FIG.

FIG. 3 is a perspective view of a door opening and closing device.

FIG. 4 is a sectional view taken along line AA of FIG. 1;

FIG. 5 is a sectional view taken along line BB of FIG. 1;

FIG. 6 is a sectional view taken along line CC of FIG. 1;

FIG. 7 is a view corresponding to FIG. 6 in a state where a pressure adjusting lid is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Low-temperature storage 3 Opening 4 Insulation box 5 Insulated door 5B 2nd groove 6 Storage room 7 Cooling device 30 Door opening / closing device 31 Pressure adjustment port 32 Pressure adjustment lid 34 Shaft member 35 Handle 36 Up-and-down lever part 38 Fixing part 39A Fixing member 39B Fixing member

Continued on the front page (72) Inventor Yoshiaki Takano 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Toshio Sagara 2-5-2-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Inside Electric Co., Ltd. (56) References Japanese Utility Model 60-156382 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F25D 23/02

Claims (2)

(57) [Claims] 1. An insulating box having a storage room whose opening is opened and closed by a heat insulating door having a groove formed over the entire length in the vertical direction, a heat insulating box having a storage room, and rotatably fixed to the groove. A door opening / closing device including a shaft member and a handle attached to the shaft member, wherein the shaft member includes a pair of upper and lower levers acting as levers when opening and closing the heat-insulating door, and a fixing portion for fixing the handle. Low temperature storage. 2. The low-temperature storage according to claim 1, further comprising a fixing member formed on both sides of the groove so as to rotatably store the shaft member in the groove.