JPH0332458Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a mounting device for air conditioning ducts for vehicles.
The present invention mainly relates to a duct mounting device that is applied to install an air conditioning duct in the ceiling of a vehicle body when a cooling device is later installed in a railway vehicle that is not initially equipped with a cooling device.

(Prior art and its problems) Conventionally, in order to install the duct in the ceiling of the vehicle body when installing the above-mentioned air conditioning system in a railway vehicle, the duct had to be made in an almost perfect shape at the factory in advance. Then, this duct is supported by a duct support frame attached to the lower surface of the roof of the vehicle body, and then a plurality of crosspieces for supporting ceiling panels are arranged horizontally below this support frame, and these crosspieces are connected via hanging trees. They were suspended from the underside of the roof, and ceiling panels made of thin decorative veneer were attached to these beams from the underside. However, a large number of components such as duct support frames, crosspieces, and hanging rods are required, and the work of attaching the duct support frame and hanging rods to the lower surface of the roof of the vehicle body, as well as the work of attaching the ceiling panel to the crosspieces, all require upward work. (The work was done while looking upwards), which made the work extremely difficult and inefficient. Furthermore, since the ceiling panel was made of thin veneer, it tended to become wavy and deformed even after installation, resulting in an unsightly appearance.

(Technical means for solving the problems) The present invention was made with the aim of solving the above-mentioned conventional problems, and the technical means for that purpose are: a pair of duct side wall frames 3 on both sides; 3 is attached to the lower surface of the roof B of the vehicle body A, and the lower end of the duct side wall frame 3 is provided with an air outlet grill 4.
A ceiling panel 5 made of a composite board such as a honeycomb board is attached, and the duct side wall frames 3, 3 and both front and rear ends of the ceiling panel 5 are connected to a wall extending across the vehicle body A and integrally therewith. Part a ₁ , a ₂
These duct side wall frames 3, 3, the ceiling panel 5, the roof part B of the vehicle body A, and the wall part
A ₁ and a ₂ form a cold air duct 1.

(Example) Next, an example of the present invention will be described based on the drawings.

Figure 1 is a plan view of the air conditioning duct of the air conditioning system installed in a conventional railway vehicle, seen from below inside the train, Figure 2 is a longitudinal sectional view of the vehicle showing the installation device for the air conditioning duct, and Figure 3 The figure is a detailed enlarged view of a part of FIG. 2. In these figures, A is the vehicle body, B is the roof of both vehicles, C is the main body of the air conditioner housing the cooling device, etc., which is located above the roof B, and D is the air conditioner. Showing the duct. This air conditioning duct D is connected to the roof part B of the vehicle body.
A series of cold air ducts 1 disposed on the lower surface side, that is, in the ceiling, over almost the entire length of the vehicle body A;
The cold air duct 1 is comprised of a plurality of return ducts 2 provided adjacently on both longitudinal sides of the cold air duct 1.

In forming the cold air duct 1, for example, a pair of duct side wall frames 3, 3 each having a substantially U-shaped cross section and made of extruded aluminum are placed with their U-shaped openings facing upward. The upper end portions of each duct side wall frame 3 are fixed to the roof portion B while being placed in parallel to the lower surface of the vehicle body roof portion B, and the blow-off grilles 4 are installed in advance at required locations. Ceiling panel 5 made of honeycomb board where
Attach to the lower end of the duct side wall frames 3, 3,
Further, both front and rear end portions of these duct side wall frames 3, 3 and ceiling panel 5 form a front transverse bulkhead portion _a1 extending across the vehicle body A and integrally with the vehicle body.
and the rear end wall part _a2 , and thus the pair of duct side wall frames 3, 3 on both sides, the ceiling panel 5, the roof part B of the vehicle body A, and the wall part _a1 ,
A cold air duct 1 consisting of ₂ is formed. That is, the frames 3, 3 cover both vertical walls of the cold air duct 1, the ceiling panel 5 covers its bottom wall, and the front transverse partition wall _a1 and the rear end wall _a2 cover its horizontal walls. The both side walls and the roof B of the vehicle main body A form the upper wall thereof. And this cold air duct 1
Although not shown, the vehicle has a cold air inlet opened at an appropriate location such as the front and rear ends or the middle of the roof B of the vehicle body, and the cold air from the cooling air device in the device body C is introduced through this inlet. It is becoming more and more like this. On the other hand, as schematically shown in FIG. 2, each return duct 2 is constructed by inserting a cylindrical duct body 6 with open upper and lower ends into a notch in which a part of the duct side wall frame 3 is cut out. The upper end of the duct body 6 is fixed to the roof B, and a suction grill 7 is attached to the lower end opening of the duct body 6.
The air sucked in from the inside of the vehicle is introduced into the cooling device of the device body C through a communication port 8 opened in the roof B. Incidentally, the suction grill 7 is attached to the duct body 6 so that it can be pivoted to open and close, so that it can be easily cleaned.

To explain the cold air duct 1 in more detail with reference to FIG. 3, each duct side wall frame 3 is formed into a substantially U-shaped cross section with an inner wall portion 3a, an outer wall portion 3b, and a bottom wall portion 3c. Flange parts 9 and 10 are formed at the upper ends of the wall part 3a and the outer wall part 3b, respectively, and when installing each frame 3, these flange parts 9 and 10 are attached to the roof of the vehicle body A with screws 11. It is attached to the bottom surface of part B. In addition, the ceiling panel 5 has a core material 5 made of paper honeycomb or the like.
A front plate 5b and a back plate 5c made of plywood or the like are attached to both the front and back sides of panel a, and a reinforcing edging material 13 is attached to the periphery of the panel 5 and the periphery of the outlet grill attachment opening 12.
As shown in FIG. 3, the air outlet grill 4 is attached to each air outlet grill mounting opening 12 together with an air volume adjustment plate 15 with screws 16, and as shown in FIG. A sheet-shaped heat insulating material 17 made of foamed polyethylene is adhered to the back surface of the panel 5 except for the opening 12. In addition, in this way, the heat insulating material 17 is attached to the inner wall portion 3a of the duct side wall frame 3 and the vehicle body A.
The heat insulating material 17 is also attached to the lower surface of the roof B of the cooling air duct 1 so that the inner circumferential surface of the cold air duct 1 is covered with the heat insulating material 17. When installing the ceiling panel 5, after each duct side wall frame 3 is installed on the roof B, this ceiling panel 5 is held horizontally so that the lower ends of the pair of duct side wall frames 3, 3 are Then, place both ends of the ceiling panel 5 in contact with the mounting brackets 18 attached to the lower end of the inner wall 3a of each frame 3, and apply the presser members 19 to the lower surface side of the mounting brackets 18 and tighten the screws. 20, it is sufficient to attach and fix it to the mounting bracket 18. By attaching the ceiling panel 5 in this manner, the ceiling panel 5 and the opposing inner wall portions 3 of the pair of duct side wall frames 3, 3 on both sides
A cold air duct 1 is formed, which includes a roof portion B, a roof portion B, and wall portions a ₁ and a ₂ .

A lighting fixture 21, such as a fluorescent light, is attached to the lower surface of each of the duct side wall frames 3, and its wiring is done using the space S inside the duct side wall frame 3.

In the embodiments described above, a wall material having a U-shaped cross section is used as the frame for the duct side wall, but the cross-sectional shape of the duct side wall frame is not limited to the U-shape, and may be I-shaped, L-shaped, etc. It can be of any shape.

(Effect of the invention) The present invention has a honeycomb board in which the upper end of the duct side wall frame 3 is attached to the lower surface of the roof B of the vehicle body A, and the lower end of the duct side wall frame 3 is provided with a blowout grille 4. A ceiling panel 5 made of a composite board such as the above is attached, and the side wall frames 3, 3 and both front and rear ends of the ceiling panel 5 are connected to wall sections _a1 , _a2 extending across the vehicle body A and integrally therewith. The duct side wall frames 3, 3, the ceiling panel 5, the roof B of the vehicle body A, and the walls a1 and a2 are connected to the walls _a1 and a2, respectively, and are connected to the walls a1 and _a2 . When installing the cold air duct 1, the top wall and front and rear end walls of the duct 1 are extended integrally with the roof B of the vehicle body A and the vehicle body, respectively. The components that are actually manufactured and installed on the vehicle body A _side are the ceiling panel 5 equipped with the duct side wall frames 3, 3 and the air outlet grille 4 _.
Only two members are required, therefore, the number of parts to be manufactured and installed is significantly less than that of the conventional method, and the upward installation work is also reduced, which reduces the manufacturing cost of the duct, and
The work of installing the duct can be done easily and efficiently. It is especially suitable for installing air conditioning ducts on conventional vehicles. In addition, since the ceiling panel is made of a composite board such as a honeycomb board, there is no need for conventional crosspieces when installing it, and since the ceiling panel itself is a rigid body, it does not deform after installation. This also improves the appearance of the product.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a plan view of an air conditioning duct installed in a railway vehicle, looking up from below the train, and Fig. 2 is a view of the - of Fig. 1.
3 is a partially enlarged detailed sectional view of FIG. 2; FIG. A...Vehicle body, _a1 , _a2 ...Wall of vehicle body A, B...Roof, D...Air conditioning duct, 1...Cold air duct, 2...Return duct, 3...For duct side wall Frame body, 4...Blowout grill, 5...Ceiling panel.

Claims (1)

[Scope of utility model registration request] The upper ends of the pair of duct side wall frames on both sides are attached to the lower surface of the roof of the vehicle body, and the lower end of the duct side wall frames is attached with a ceiling panel made of a composite board such as a honeycomb board equipped with an outlet grill, Furthermore, both the front and rear ends of the duct side wall frame and the ceiling panel are connected to a wall extending integrally across the vehicle body, so that the duct side wall frame, the ceiling panel, and the roof of the vehicle body are connected to each other. and the wall portion to form a cold air duct.