Structure for attaching evaporator to rear of van-type vehicle equipped with under-ceiling housed shutter

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a temperature-controlled van-type vehicle, particularly an evaporator for internal freezing of a van-type vehicle to which a shutter door that slides and is stored under the ceiling is attached when the door is opened.

【0002】

[Conventional technology]

In the past, the evaporator inside the refrigerator was directly attached to the ceiling. Therefore, when the rear door is a sliding shutter door that can be retracted under the ceiling, an evaporator cannot be attached to the shutter retracting portion.

【0003】

In recent years, in vehicles that control multiple temperatures, it has become increasingly necessary to install a plurality of evaporators, such as the front and rear parts of the refrigerator, and in particular, due to the presence of the shutter door present on the ceiling when installing near the rear door, the vehicle could not be installed. ..

【0004】

The applicant has previously improved the refrigerated truck cargo box equipped with an evaporator and filed a patent application (see Jitsukaihei 5-10973, Patent No. 3056387). As shown in FIG. 5, the ceiling 5 has a heat insulating layer 9 made of a synthetic resin foam material arranged inside a thin metal plate 8 corrugated in the longitudinal direction of the packing box 1, and the synthetic resin plate or the inside thereof. It has a structure in which a wooden board 10 is stretched. A recess 11 formed by forming a thin (thickness S) heat insulating layer 9 is provided at the front end of the ceiling 5. FIG. 6 is a partial cross-sectional view showing the 11 portions of the recess in an enlarged manner. A thinly formed evaporator 12 is mounted in the recess 11. Further, a plurality of grooves 13 for air circulation are provided in the ceiling 5 as needed. 6 is the floor of a van-type vehicle.

【0005】

In addition, FIG. 7 shows a case where goods are transported in a packing box for transporting frozen foods, and goods having different internal temperatures such as chilled foods and frozen foods are transported in one packing box. Figure 7 shows an example used in such cases. In this example, two recesses 11 are provided at the front end and the rear end of the ceiling 5 of the packing box 1, and evaporators 12 and 12, respectively, are attached to the two recesses 11 in the same manner as in the above example. Similarly in this example, the evaporator 12 is formed to be thin, and the lower surface of the evaporator 12 is substantially flush with the inner surface of the ceiling 5. 14 is a partition wall that divides the inside of the packing box 1 into two rooms. Of course, in this embodiment, the cold air blown out from the evaporators 12 and 12 circulates in each room.

【0006】

In the packing box for transporting frozen foods shown in Fig. 7, the rear door is not a ceiling-retractable shutter door, but a double door. In this example, the evaporator does not protrude inward (downward) from the ceiling. , Shutter door can be installed. However, as can be seen in Fig. 7, the thickness of the heat insulating layer on the ceiling is sacrificed in terms of heat retention function, and the structure is complicated, so the manufacturing cost has to be high.

【0007】

[Problems to be Solved by the Invention]

The challenge is to ensure heat retention, low cost, secure a shutter storage space under the ceiling, and install an evaporator under it.

【0008】

[Means for solving problems]

(1) In a van-type vehicle equipped with a retractable shutter under the ceiling, a frame dedicated to mounting an evaporator was provided between both side walls of the van-type vehicle at the lower position of the shutter rail, and the evaporator was mounted on the frame. (2) The frame dedicated to mounting the evaporator is located between a pair of vertical members to be mounted on the side wall, a pair of horizontal members orthogonal to the pair of vertical members, and further parallel to the vertical members. It is composed of a pair of evaporator mounting members, and the evaporator is mounted on the lower part of the evaporator mounting member by bolts or the like. (3) Change the position of the evaporator in the left-right direction by changing the mounting position to the lateral members that make up the frame dedicated to mounting the evaporator to the left and right, and change the position of the evaporator in the vertical direction by changing the frame dedicated to mounting the evaporator. The mounting position of the constituent vertical members is shifted up and down.

【0009】

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 2 is a vertical cross-sectional view of the van type vehicle V in which the present invention is carried out. As shown in FIG. 2, the van-type vehicle V is divided into a front chamber A and a rear chamber B by a partition wall 21. An evaporator 22 is attached to the lower part of the ceiling of the front room, and an evaporator 23 is attached to the lower part of the ceiling of the rear room B so that the rooms A and B can be managed at different room temperatures.

【0010】

24 is a shutter door, which is guided by rails provided on both sides of the vehicle and sent to the lower part of the ceiling for storage as shown in Fig. 2. Since there is a shutter door 24 stored in the lower part of the ceiling, the evaporator 23 cannot be directly attached to the lower part of the ceiling as in the known structure (FIG. 7). The present invention solves this problem.

【0011】

FIG. 1 shows a rear evaporator mounted by the mounting structure of the present invention, in which rails 26 of the shutter door 24 are provided on both lower sides of the ceiling 25. When the operation piece 27 is pulled downward, the shutter door 24 is closed, and when the lock device 28 is opened, the shutter door 24 is urged by the spring force of the spring 29 provided at the upper part of the rear section structure and can be pushed up and opened by a small human force.

【0012】

By the way, in FIG. 1, 30 is a mounting frame of the rear evaporator 23 provided at the lower part of the shutter rail 26. The details of the mounting frame will be described below with reference to FIG. In FIG. 4, 31a and 31b are a pair of left and right vertical members such as an L-shaped member (the shape is not particularly limited) attached to the side wall of the upper part of the inner wall (below the shutter rail) of the van-shaped vehicle V. A pair of front and rear horizontal members 32a and 32b are fixed in parallel between the vertical members 31a and 31b at right angles to these vertical members 31a and 31b. A U-shaped cross-section member (the shape is not particularly limited) 33a and 33b are further fixed in parallel between the horizontal members 32a and 32b.

【0013】

The rear evaporator 23 is attached to the lower part of the U-shaped members 33a and 33b by bolts 34 and nuts 35. In the figure, it is attached with four bolts 34, but the number is not particularly limited.

【0014】

Reference numeral 36 denotes a fixing tool such as a blind rivet that fixes the vertical member 31a or 31b to the side wall.

【0015】

As described above, a mounting frame 30 assembled of a mold material or the like is passed between both side walls of the van-type vehicle, and the evaporator 23 is mounted on the frame 30. At this time, if the evaporator 23 is attached to the frame 30 in advance, the attachment frame 30 can be fixed at an arbitrary position on the side wall. Can be set to position.

【0016】

[Effect of the invention]

When the rear door is a retractable shutter door under the ceiling, the evaporator can be easily installed under the door rail by using the mounting frame of the present invention. For this reason, various variations of van-type vehicles for multiple temperature control have become possible.

【0017】

In particular, the mounting frame can be mounted at a desired position with respect to the side wall in the vertical direction, and can be easily mounted because it can be mounted in advance on the U-shaped cross-section members 33a and 33b for mounting the rear evaporator. ..

【0018】

In addition, since the U-shaped cross-section members 33a, 33b, etc. can be moved to the left and right with respect to the horizontal members 32a, 32b, the position of the evaporator can be changed to a preferable position due to the load, etc., and effective loading is possible. Is.

[Simple explanation of drawings]

[Figure 1]

The rear perspective view of the van type vehicle which carried out the present invention.

[Figure 2]

Vertical sectional view of a van type vehicle.

[Fig. 3]

Right side view of FIG.

[Fig. 4]

An exploded perspective view of the rear evaporator mounting device.

[Fig. 5]

Sectional drawing of a known refrigerator truck.

[Fig. 6]

A detailed view of the evaporator mounting portion in FIG.

[Fig. 7]

Cross-sectional view of a multi-chamber temperature-controlled van-type vehicle.

[Explanation of symbols]

1 packing box 5 ceiling 6 floor 8 metal plate 9 Insulation layer 10 Wood board 11 dent 12 evaporator 13 groove 14 partition wall 21 Partition wall 22 Evaporator 23 Evaporator 24 Shutter door 25 ceiling 26 rails 27 Operation piece 28 Lock device 29 spring 30 mounting frame 31a, 31b Vertical member 32a, 32b Horizontal member 33a, 33b U-shaped cross section 34 bolts 35 nuts