JPS6015214A - Duct structure - Google Patents

Abstract

PURPOSE:To raise the operability of connection by exactly connecting ducts by a method in which the rear bent portion of a duct connector is cut diagonally by leaving its one side intact, and the cut portions of the duct connector are detachably attached to ducts. CONSTITUTION:An intake port 15 to be connected with the rear heater port 13 of a heater unit 11 is formed in a crank-like duct connector 9, and a sealant 17 is attached to the peripheral edge of the intake port 15. The rear bent portion 19 is cut diagonally by leaving its one side 21 intact, where the one side 21 serves as a hinge having some play allowance by an R-portion formed in a hair pin shape. The opening peripheral edge on the cut side of the connector 9 is fitted into opening peripheral edge of the duct main body 3, and recessions 23 to be coupled with projections 25 of both sides of the connector 9 are provided on the inner surface of the side wall of the main body 3. The connector 9 is locked thereby. The movement of connected position is regulated by an elastic material 27 attached to the end portion of the cut side of the connector 9.

Description

[Detailed description of the invention] Industrial applications This invention relates to a duct structure.

Prior art In general, heaters installed in automobiles]-Nitsu 1~
Rear heater ducts 1 to 1 are connected to guide warm air to the rear.

As a conventional heater duct, for example, 1979
There is a structure as shown in Figures 1 and 2 on page 659 of the maintenance manual for the Gloria (Model 430) published by Nissan Cetrick, published in 2007. That is, Lyahita Dak 1-1
On the rear end side of the dow 1 to the main body part 3, there is a blowout lower extending over the floor 1 hennnel part 52 and branched by branch pipes 5, 5; l) Furthermore, on the front end side, intake ports 15 are provided in the floor 1 to the tunnel portion 521, respectively. The intake port 15 is connected to the rear heater of the heater units 1 to 11.
The structure is connected to 113.

In the figure, 29 is a connection port to the heater duct 1, 31 is a connection port to the differential ventilator duct 1, 33 is a connection port for the zenter ventilator duct, 35 is a connection port to the blade ventilator duct 1, and 50
is 70-Akarpetsu h, 58 is) []] Abanel general surface 5G is a dashico panel, 1) 4 indicates to Insu 1.

Conventional Heat Units l-11, Lya Hita Dak 1-1,
To remove the carpet 50 (-), first move the heater unit 1-11 to the dashco panel 56 and the floor panel 52 to the bracket 1 (No C removal (=11), then move the rear unit 1-1 to the floor panel 56 and the floor panel 52 to the bracket 1. It was placed on the panel 58 and fixed with adhesive tape or the like, and then the carpellers 1 to 50 were placed on it.

As shown in FIG. 2, the space between the heater unit 1 and the floor tunnel portion 52 is narrow in the above IM space, so the carpellers 1 to 50 are laid over the dimension a of the bottom surface of the heater R unit 11. Therefore, there was a drawback that the original sound could not be heard within dimension a).

As shown in Figure 3 of C1, heater units i~1 are placed on the C dimension floor! If the structure is lifted up from the channel 52, and the forces 1 to 50 are extended to the entire bottom surface of the heater unit 1-11 (J), the sound insulation will be 1-1, and the end to the carpeller 1 will also be extended. Although the appearance is improved by hiding it, since the heater unit 1 to the heater duct A7 is moved upwards compared to the conventional heater duct 1, the conventional heater duct 1 to the glue A7 must be extended further upward in the shape of a crank as shown in the figure.

However, it would be difficult to simply extend and integrally mold the intake side of the current duct (~ structure), and it would be possible to replace it with a separate piece (J), but it would require more parts, and the number of joints would increase. !I had a problem with leakage.

Purpose of the Invention This invention provides a carpet on the bottom surface of heater units 1 to 1.
In the structure in which the heater unit 1~ is raised upward so that the heater unit 1~ can be held up, the connection of the tough I~ can be ensured and the workability of the connection can be improved 11! Kodakt, tilj KH
, in order to solve the above problem (67).

Structure of the Invention In order to achieve the above-mentioned object, Dak 1 to (14 Dow 1)
A crank-shaped duct (-1 volume) is formed in the front half of the main body part, and an intake port that can be connected to the heater unit's rear heater is provided on the front end side of the dow 1 to the connection part. An air outlet is provided on the rear end side of the part (pu), the rear bent part of the dow L-connection part is cut out on the diagonal line of -C, leaving the - side,
The crank-shaped dow 1-18 connection part and the main body part of the dow 1 are integrally constructed at the throat to which the cutout part is detachably attached.

Embodiment Hereinafter, one embodiment of the present invention will be explained in detail with reference to the drawings of FIGS. 4 to 8. Incidentally, the same members as in the third example and the second example will be described using the same reference numerals (q).

1 in the figure shows a carrier heater duct, the rear half of the body 3 of the duct 1'' is branched by branch pipes 5.5, and each end of the branch pipes 5, 5 has a blower lower.

7 is formed. On the other hand, in the crank-shaped dow 1 to the connecting part 9 formed in the front half of the duct main part 3, an intake port 15 that can be connected to the heater heater 11 and the heater rod 13 is formed, and the periphery of the intake port 15 is , a sealing material 17 made of a material such as urethane is attached. The rear bent portion 19 formed in a crank shape is cut out diagonally apart from the − side 21, and the − side 21 is a hinge portion having a slight play due to a rounded portion bent into a hairpin shape. . Dow 1 to connection part 9 [31, C tough 1 to main body part 3 are integrally molded by blow molding, and the width is
It is formed to be slightly narrower than the width of the main body portion 3. As shown in FIG. There is.

j: At silk (1+-+ working position), the engaging protrusions 25.25 iQ t-J were attached to both sides of the dow 1 to the connecting part 4-9.
Engagement section recesses 23, 23 that engage with the iQ 11 are respectively formed on the inner surface of the side wall of the duct main body 3. As a result, the duct connecting portion 9 is locked at the working position (2).Also, at the (N1-) position T, the elastic body that comes into contact with the opening periphery 3a of the duct main portion 30 is locked. 27 is attached to the end of the notch side of the duct connection part 9.The elastic body 27 is made of a material such as urethane, and has a seal function on the abutting surface and a spar function to restrict movement at the abutting position. It is equipped with

Build ducts 1 to 4M configured in this way, and
The connecting portion 9 is fixed at the working position (1) by the engaging protrusion 25 and the engaging recess 23. Therefore, the silk f for heater units 1 to 11 and 13 is =
In addition to making it easier to carry out the work, it is also possible to manage the heater duct 1 as an integrated unit. In addition, if the intake ports 15 of the dows 1 to the connecting portions 9 are inserted into the heater port 13, the dows 1 to the connecting portions 9 are connected at the 4-position (J position I. At this time, the elastic body 2
7 contacts the opening peripheral portion 3a of the main body portion 3 to ensure a seal on the contact surface. Also, if there is a slight deviation in the position M' and J of the main body part 3 to the duct 1, the hinge part
: is absorbed.

Effects of the Invention As described above, according to the present invention, the work of assembling the ducts 1 to 4 becomes easier, the workability is improved, and the sealing ability is also improved. This will ensure that it will not come off due to vibration.

Furthermore, the number of parts to be managed can be reduced.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of the structure of the conventional duct 1, Figure 2 (3
L to L 〇 Silk (=J' k: A cross-sectional view of a part showing the J state, Figure 3 is a cross-sectional view of the structure of the conventional heater knit 1 to the duct 1 when raised in the negative direction, Figure 4 shows Tough 1 to WJjfff according to the present invention, and is a perspective view of the state removed from the heater knit, FIG. 5 is a perspective view of the main part, and FIG. 6 is a partial cutaway similar to FIGS. 2 and 3. A top view, FIG. 7 is a sectional view taken along the line Vl-Vl in FIG. 6, and FIG. 8 is an explanatory diagram of the operation. Explanation of main drawing symbols 3... Main body part 7... Suction port 9 ...Dash 1~Connection part 11...Heater unit]Nitsu 1~13...
Rear heater port 15...Intake "121...-side"

Claims (1)

[Claims] A crank-shaped duct connection part is formed in the front half of the duct main body, and an intake port that can be connected to the heater unit is provided at the front end of the duct connection part, while an intake port is provided at the rear end of the duct main body. A duct structure characterized in that a rear bent part of the duct main body is cut out diagonally leaving a - side, and the cutout part is detachably attached.