JP4358461B2 - Evaporator mounting structure at the rear of a vehicle in a van-type vehicle with a retractable shutter at the ceiling - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a mounting structure for an internal freezing evaporator of a van type vehicle that is temperature-controlled, in particular, a van type vehicle to which a shutter door that is slid and stored in the lower part of the ceiling when the door is opened.
[0002]
[Prior art]
In the past, the internal evaporator was directly attached to the ceiling. For this reason, when the rear door is a sliding shutter door that is retractable at the bottom of the ceiling, the evaporator cannot be attached to the shutter storage portion.
[0003]
In recent years, it has become necessary to mount a plurality of evaporators, such as the front and rear parts in a warehouse, for example, in vehicles with multi-temperature management, and in particular, when installed near the rear door, it was not possible to install due to the presence of the shutter door on the ceiling. .
[0004]
The present applicant has previously made an application for a patent on a refrigerated car box equipped with an evaporator (see Japanese Utility Model Laid-Open No. 5-10973 and Japanese Patent No. 3056387). As shown in FIG. 5, the ceiling 5 is provided with a heat insulating layer 9 made of a synthetic resin foam material inside a thin metal plate 8 corrugated in the longitudinal direction of the packing box 1, and a synthetic resin plate or The wood board 10 is stretched. The front end of the ceiling 5 is provided with a recess 11 formed by thinly forming the heat insulating layer 9 (thickness S). FIG. 6 is a partial cross-sectional view showing the recess 11 in an enlarged manner. An evaporator 12 formed in a thin shape is attached in the recess 11. The ceiling 5 is provided with a plurality of air circulation grooves 13 as necessary. 6 is a floor of a van type vehicle.
[0005]
FIG. 7 shows a case where goods having different internal temperatures, such as chilled foods and frozen foods, are transported in one packing box when the goods are transported in a shipping container for transporting frozen goods. FIG. 7 shows an example used in such a case. In this example, two depressions 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 are respectively attached to the two depressions 11 in the same manner as in the above example. Similarly in this example, the evaporator 12 is formed thin, and the lower surface of the evaporator 12 is substantially flush with the inner surface of the ceiling 5. Reference numeral 14 denotes a partition wall that divides the interior of the packing box 1 into two rooms. Of course, in this embodiment, the cold air blown from the evaporators 12 and 12 circulates in the respective rooms.
[0006]
In the case of this example in which the rear door is not a ceiling retractable shutter door but a double door, the evaporator does not protrude inward (downward) from the ceiling. A shutter door can be attached. However, as seen in FIG. 7, the thickness of the heat insulating layer on the ceiling is sacrificed for the heat retaining function, and the structure is complicated, so that the manufacturing cost has to be high.
[0007]
[Problems to be solved by the invention]
It is an object of the present invention to ensure heat insulation and at low cost so that an evaporator can be installed under the space while securing a shutter storage space at the bottom of the ceiling.
[0008]
[Means for Solving the Problems]
(1) In a van type vehicle equipped with a lower ceiling retractable shutter, an evaporator mounting frame is provided between both side walls of the van type vehicle at a lower position of the shutter rail, and the evaporator is attached thereto.
(2) The evaporator-dedicated frame includes a pair of longitudinal members attached to the side wall, a pair of transverse members orthogonal to the pair of longitudinal members, and further between the transverse members and parallel to the longitudinal member. The evaporator mounting member is attached to the lower part of the evaporator mounting member with a bolt or the like.
(3) Change the position of the evaporator in the left-right direction by changing the position of the evaporator in the horizontal direction that makes up the evaporator-dedicated frame, and change the position of the evaporator in the vertical direction. The mounting position of the longitudinal member to be configured is shifted up and down.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 2 is a longitudinal sectional view of a van type vehicle V embodying the present invention. As shown in FIG. 2, the van type vehicle V is partitioned 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 front chamber ceiling, and an evaporator 23 is also attached to the lower part of the ceiling of the rear room B, so that the room A and the room B can be managed at different room temperatures.
[0010]
Reference numeral 24 denotes a shutter door, which is guided by rails provided on both sides of the vehicle and is sent to the lower ceiling as shown in FIG. 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, and rails 26 of a shutter door 24 are provided at lower portions on both sides of a ceiling 25. The shutter door 24 is closed when the operation piece 27 is pulled downward, and when the lock device 28 is opened, the shutter door 24 is urged by a spring force of a spring 29 provided at the upper part of the rear section structure and can be pushed up and opened by a small human power.
[0012]
In FIG. 1, reference numeral 30 denotes a mounting frame for 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 longitudinal members such as an L-shaped material (not particularly limited in shape) attached to the side wall of the upper part of the inner wall of the van type vehicle V (below the shutter rail). A pair of front and rear transverse members 32a and 32b are fixed in parallel between the longitudinal members 31a and 31b perpendicularly to the longitudinal members 31a and 31b. Further, U-shaped members (particularly not limited in shape) 33a and 33b are 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 with bolts 34 and nuts 35. In the figure, four bolts 34 are used, but the number is not particularly limited.
[0014]
Reference numeral 36 denotes a fixing tool such as a blind rivet for fixing the longitudinal member 31a or 31b to the side wall.
[0015]
As described above, the mounting frame 30 assembled with a mold material or the like is passed between both side walls in the warehouse of the van type vehicle, and the evaporator 23 is attached to 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. Therefore, the attachment position of the evaporator 23 integrated with the attachment frame 30 can be freely set to the front and rear and the top and bottom. Can be set to position.
[0016]
【The invention's effect】
When the rear door is a lower ceiling retractable shutter door, the evaporator can be easily installed on the lower portion of the door rail using the mounting frame of the present invention. For this reason, various variations of the van type vehicle for multiple temperature management are possible.
[0017]
In particular, the mounting frame can be mounted easily because the longitudinal member can be mounted at a desired position with respect to the side wall and can be mounted in advance on the U-shaped members 33a and 33b for mounting the rear evaporator. .
[0018]
In addition, since the U-shaped members 33a and 33b and the like can be moved to the left and right with respect to the horizontal members 32a and 32b, it is possible to effectively load by changing the position of the evaporator to a preferable position in relation to the load. It is.
[Brief description of the drawings]
FIG. 1 is a rear perspective view of a van type vehicle embodying the present invention.
FIG. 2 is a longitudinal sectional view of a van type vehicle.
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is an exploded perspective view of a mounting device for a rear evaporator.
FIG. 5 is a cross-sectional view of a known refrigeration vehicle.
6 is a detailed view of the evaporator mounting portion in FIG. 5. FIG.
FIG. 7 is a cross-sectional view of a multi-room temperature management van type vehicle.
[Explanation of symbols]
1 Packing box 5 Ceiling 6 Floor 8 Metal plate 9 Heat insulation layer 10 Wood board
11 Dimple 12 Evaporator
13 Groove 14 Partition wall
21 Partition 22 Evaporator
23 Evaporator 24 Shutter door
25 Ceiling 26 Rail
27 Operation piece 28 Locking device
29 Spring 30 Mounting frame
31a, 31b Longitudinal member 32a, 32b Transverse member
33a, 33b U-shaped member in cross section 34 bolt
35 nut

Claims (3)

In a van type vehicle equipped with a lower ceiling retractable shutter, the lower part of the ceiling is characterized in that an evaporator-dedicated frame is provided between the side walls of the van type vehicle at the lower position of the shutter rail, and the evaporator is attached to this frame. A structure for attaching an evaporator to a rear portion of a van type vehicle having a type shutter. The evaporator-dedicated frame includes a pair of longitudinal members attached to the side wall, a pair of transverse members orthogonal to the pair of longitudinal members, and a pair of parallel members between the transverse members and parallel to the longitudinal member. An evaporator mounting structure for a vehicle rear portion in a van type vehicle having a ceiling lower storage type shutter according to claim 1, comprising an evaporator mounting member, wherein the evaporator is mounted to the lower portion of the evaporator mounting member with a bolt or the like. Changing the position of the evaporator in the left-right direction can be done by changing the position of the evaporator in the horizontal direction that makes up the evaporator-dedicated frame, and changing the position of the evaporator in the vertical direction of the evaporator-dedicated frame. The structure for attaching an evaporator to a rear portion of a van type vehicle having a lower ceiling storage shutter according to claim 1, wherein the directional member is attached at a position shifted up and down.

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