JP3214189B2 - Assembling method of door vent structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door vent structure applied to an automobile door and a method of assembling the door vent structure.

[0002]

2. Description of the Related Art As a conventional door vent structure, for example, there is a structure shown in FIGS. 8 and 9 (S-58, 5 of "Introduction MS-8" of Mazda Co., Ltd., March 1992).
9).

[0003] The door trim 1 is mounted on an inner panel of a front door. A ventilation duct 3 is attached to the door trim 1 on the back surface 1b side. The grill portion 5 of the ventilation duct 3 faces the vehicle interior from a through hole 7 extending between the front and back of the door trim 1. The surface 1a of the door trim 1 is provided in the through hole 7.
An escutcheon 9 is assembled on the side. Therefore, when such a door trim 1 is mounted on an automobile door, conditioned air can be blown out from the grill portion 5. Further, the through hole 7 can be hidden by the escutcheon 9.

[0004]

The assembly of the ventilation duct 3 and the escutcheon 9 as described above is performed as follows. That is, the ventilation duct 3 is arranged from the back surface 1b side with respect to the through hole 7 of the door trim 1, and the grill portion 5 is desired from the through hole 7. Further, the escutcheon 9 is disposed in the through hole 7 from the surface 1a side of the door trim 1. Then, the ventilation duct 3 and the escutcheon 9 are fastened together with screws, and fixed to the door trim 1.

However, in the case of such a structure, since the three components of the door trim 1, the ventilation duct 3 and the escutcheon 9 are separate components, it is difficult to obtain mutual alignment accuracy, and the ventilation duct is difficult to assemble. The fastening hole 3 and the fastening hole of the door trim 1 and the fastening hole of the escutcheon 9 may be shifted from each other, and the fastening operation may be difficult. Further, when the ventilation duct 3 and the escutcheon 9 are fastened together to the door trim 1 as described above, the work may be extremely complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a door vent structure and an assembling method of the door vent structure, which can easily perform accuracy and can easily perform an assembling operation.

[0007]

According to a first aspect of the present invention, a door trim is provided with a through-hole extending over the front and back sides, and the grille portion of a ventilation duct assembled on the back side of the door trim is provided with the through-hole. In a method of assembling a door vent structure in which an escutcheon is assembled to the through hole on the front side of the door trim, the escutcheon is integrally provided on the grill portion side of the ventilation duct before the escutcheon is assembled to the door trim. ,
Between the escutcheon and the ventilation duct
The escutcheon is assembled to the through hole on the front side of the door trim while maintaining an integrated state .

According to a second aspect of the present invention, a through hole is provided in the door trim so as to extend from the front to the back, and a grill portion of a ventilation duct assembled on the back side of the door trim faces the through hole, and the through hole is formed on the front side of the door trim. In the method of assembling the door vent structure that attaches the escutcheon to the hole,
The escutcheon is integrally provided on the grill portion side of the ventilation duct, a throat portion is provided at an intermediate portion of the ventilation duct, and at the time of assembly, the escutcheon of the ventilation duct is bent against the through hole. Arranged on the back side of the door trim, then pass the escutcheon from the through hole to the front side of the door trim, rotate the ventilation duct with the throat of the ventilation duct corresponding to the through hole, and place the escutcheon on the door trim. It is characterized in that it is assembled to the through hole on the front side. The invention according to claim 3 is that the door trim is provided with a through hole extending from front to back, and a grill portion of a ventilation duct assembled on a back surface side of the door trim faces the through hole, and an escutcheon is formed in the through hole on the front side of the door trim. In the method of assembling a door vent structure, the ventilation duct side of the ventilation duct
In addition, an esca that is separate from the ventilation duct
After fixing the session, the escutcheon and the vent
While maintaining the fixed state with the tilting duct,
Assemble the escutcheon into the through hole on the front side of the door trim
It is characterized by that.

[0009]

According to the first aspect of the present invention, since the escutcheon is integrally provided on the grill portion side of the ventilation duct, mutual precision between the ventilation duct and the escutcheon can be determined before the door trim is assembled. Can be done in a state. Therefore, if the assembling accuracy of the door trim and the ventilation duct is accurately performed, the accuracy of the escutcheon and the door trim is automatically determined.

At the time of assembling, the escutcheon can be assembled to the through-hole only by assembling the ventilation duct to the door trim.

According to the second aspect of the present invention, at the time of assembly, the ventilation duct is disposed on the back side of the door trim in a state where the escutcheon of the ventilation duct is in contact with the through hole. Thereafter, the escutcheon is passed from the through hole to the front side of the door trim. Then, the ventilation duct is rotated with the throat of the ventilation duct corresponding to the through hole, and the escutcheon is assembled to the through hole on the front side of the door trim. When the ventilation duct is assembled to the door trim in this state, the entire assembly is completed.

[0012]

Embodiments of the present invention will be described below.

The same components as those described above are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 1 is a perspective view of a door trim 1 to which one embodiment of the present invention is applied, viewed from the front surface 1a side.
That is, the escutcheon 9 and the grill portion 5 can be visually recognized on the front surface 1a side of the door trim 1. FIG. 2 shows the door trim 1 in a sectional view taken along line II-II in FIG. FIG. 3 is a partially omitted perspective view of the door trim 1 as viewed from the back surface 1b side.

As shown in FIGS. 2 and 3, the door trim 1 is provided with a through hole 7 extending from front to back. The periphery of the through hole 7 is a receiving recess 11 for fitting the escutcheon 9. Ventilation duct 3 adjacent to through hole 7
There is provided a communication hole 13 for linking to an instrument side duct (not shown). As shown in FIGS. 2 and 3, the door trim 1 is formed so as to protrude so that the space between the through-hole 7 and the communication hole 13 projects toward the vehicle interior. Therefore, the through hole 7 and the communication hole 13 on the back surface 1b side of the door trim 1
A space 15 is formed between the two. As shown in FIG. 3, fixing bosses 17a, 17 on the back surface 1b side of the door trim 1.
b, 17c are provided. A stay 19 is bridged vertically at an intermediate portion in the front-rear direction of the through hole 7. Through hole 13
Is reinforced by the stay 19.

Next, the ventilation duct 3 shown in FIG.
Will be further described with reference to FIGS.

FIG. 4 is a perspective view of the ventilation duct 3 as viewed from the rear side, and FIG.
FIG. 3 is a plan view when viewed from above. The ventilation duct 3 is provided with an escutcheon 9 integrally on one side of the grill portion 5. That is, an engagement claw 21 is provided around the grill portion 5 side of the ventilation duct 3, and a tongue piece 25 having an engagement hole 23 is protrudingly provided on the back side of the escutcheon 9. The engaging hole 23 of the tongue piece 25 is
1 is engaged. In FIGS. 4 and 5, the engaging claws and tongues located below the ventilation duct 3 are not shown. A fastening tongue piece 26 is provided on a side portion of the ventilation duct 3, and is fastened to a fastening boss 28 provided on the escutcheon 9 by a screw 30. The precision of the escutcheon 9 and the ventilation duct 3 is determined by fastening the fastening tongue piece 26 and the fastening boss 28 with the screw 30. In this way, the escutcheon 9 is the grill portion 5 of the ventilation duct 3.
It is assembled integrally on the side. The escutcheon 9 is further provided with an engaging piece 29 having a flexible claw 27.

The ventilation duct 3 is bent, and a throat portion 31 is provided at an intermediate portion thereof. The other end 3a side of the ventilation duct 3 is configured to be in close contact with the communication hole 13 of the door trim 1, and is provided with an insulator 33. Further, the ventilation duct 3 is provided with fastening pieces 35a, 35b, 35c for assembly.

Next, the operation will be described.

In this embodiment, the ventilation duct 3 and the escutcheon 9 are separate components, and the escutcheon 9 is pre-assembled in the ventilation duct 3 in advance. This sub-assembly is performed as follows. First, insert the tongue piece 25 of the escutcheon 9 into the engagement hole 2
At 3, the engaging pawl 21 of the ventilation duct 3 is engaged. In this state, the escutcheon 9 is temporarily held in the ventilation duct 3. Next, the fastening tongue piece 26 of the ventilation duct 3 is fastened and fixed to the fastening boss 28 of the escutcheon 9 with a screw 30. Thereby, the accuracy of the ventilation duct 3 and the escutcheon 9 is determined.

In this state, as shown in FIG. 6, the escutcheon 9 of the ventilation duct 3 is disposed on the rear surface 1b side of the door trim 1 in a state where the escutcheon 9 is in contact with the through hole 7 of the door trim 1. Then, as shown in FIG. 7, the escutcheon 9 is passed through the through hole 7 to the front side of the door trim 1. Then, the throat 31 of the ventilation duct 3 is made to correspond to the through hole 7. At this time, the other end 3a of the ventilation duct 3
The side corresponds to the space 15 on the back surface 1b of the door trim 1. By rotating the ventilation duct 3, FIG.
As described above, the escutcheon 9 is fitted into the receiving recess 11 on the front surface 1a side of the door trim 1. The flexible claw 27 of the escutcheon 9 is engaged with the peripheral edge of the through hole 7 on the back surface 1b side of the door trim 1. Next, the fastening pieces 35a, 35 shown in FIG.
b, 35c are aligned with the bosses 17a, 17b, 17c shown in FIG. 3 and fastened and fixed by screws (not shown). This completes the installation of the ventilation duct 3,
The escutcheon 9 is attached to the through hole 7, and the other end 3 a side of the ventilation duct 3 is in close contact with the communication hole 13.

Since the assembly of the escutcheon 9 is completed only by fastening and fixing the ventilation duct 3 to the door trim 1 in this manner, if the positional accuracy of the assembly of the ventilation duct 3 and the door trim 1 is ensured, the escutcheon 9 can be inserted into the through hole 7. Can be assembled accurately. Therefore, it is extremely easy to set the precision between the door trim 1, the ventilation duct 3 and the escutcheon 9 during assembly. Also, since the assembly can be performed only by handling the ventilation duct 3, the escutcheon 9 is extremely simple as compared with a separate escutcheon. Throat 3
When the ventilation duct 3 is assembled by rotating the ventilation duct 3 by using the hole 1, only the grill portion 5 side of the ventilation duct 3 needs to pass through the through hole 7, so that the fastening pieces 35 a, 35 b, and 35 c are formed large. be able to. Therefore, it is possible to firmly attach the ventilation duct 3 to the door trim 1.

In the above-described embodiment, the escutcheon 9 and the ventilation duct 3 are separately formed and are integrated by a sub-assembly. However, both can be integrally formed from the beginning.

[0024]

According to the present invention As is clear from above, according to the present invention, integrally provided escutcheon the grill portion of the ventilation duct, the said escutcheon
Maintains an integral state with the ventilation duct
Also, since the escutcheon is assembled to the through hole on the front side of the door trim, the escutcheon is automatically and easily aligned with the door trim only by aligning the ventilation duct and the door trim during assembly, and the accuracy is improved. It becomes very easy. In addition, since only the ventilation duct needs to be handled, the assembling work becomes extremely simple.

According to the second aspect of the present invention, since the assembling is performed while rotating using the throat portion of the ventilation duct, the fastening pieces and the like provided in the ventilation duct can be formed large, and the fixing to the door trim can be performed firmly. Can be made. According to the invention of claim 3 ,
To fix the escutcheon to the ventilation duct
Accuracy of ventilation duct and escutcheon
The dispensing can be done before assembling to the door trim.
For this reason, the escutcheon is automatically and easily aligned with the door trim only by adjusting the alignment between the ventilation duct and the door trim at the time of assembling, and the accuracy can be extremely easily obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view seen from the surface of a door trim to which an embodiment of the present invention is applied.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a partially omitted perspective view of the door trim as viewed from the back side.

FIG. 4 is a perspective view of a ventilation duct.

FIG. 5 is a plan view of a ventilation duct.

FIG. 6 is an operation explanatory view.

FIG. 7 is an operation explanatory view.

FIG. 8 is a perspective view of a door trim according to a conventional example.

FIG. 9 is an enlarged perspective view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door trim 1a Front surface 1b Back surface 3 Ventilation duct 5 Grill part 7 Through hole 9 Escussion 31 Throat

Claims (3)

(57) [Claims] 1. A door trim is provided with a through hole extending over the front and back,
In a method of assembling a door vent structure in which a grill portion of a ventilation duct assembled on a back side of the door trim faces the through hole, and an escutcheon is assembled in the through hole on a front side of the door trim, the grill portion of the ventilation duct On the side, the escutcheon is provided integrally before being assembled to the door trim, and the escutcheon and the ventilation duct are
A method of assembling a door vent structure , wherein the escutcheon is assembled into a through hole on the front side of a door trim while maintaining an integrated state . 2. A door trim is provided with a through hole extending over the front and back,
In a method of assembling a door vent structure in which a grill portion of a ventilation duct assembled on a back side of the door trim faces the through hole, and an escutcheon is assembled in the through hole on a front side of the door trim, the grill portion of the ventilation duct The vent is integrally provided on the side, a throat is provided in the middle part of the ventilation duct, and at the time of assembly, the ventilation duct is arranged on the back side of the door trim in a state where the escutche is made to pierce the through hole. Then, the escutcheon is passed from the through hole to the surface of the door trim, and the ventilation duct is rotated with the throat of the ventilation duct corresponding to the through hole, and the escutcheon is assembled to the through hole on the surface side of the door trim. Doorbell characterized by the following: The method of assembling the door structure. 3. A door trim is provided with a through hole extending from front to back.
In a method of assembling a door vent structure in which a grill portion of a ventilation duct assembled on the back side of the door trim faces the through hole, and an escutcheon is assembled in the through hole on the front side of the door trim, the grill portion of the ventilation duct On the side, the Ben
Secure the escutcheon that is separate from the
After was boss, it said with the escutcheon Benchire Shon
While maintaining the fixed state with the duct,
Feature that the door is assembled to the through hole on the front side of the door trim.
How to assemble the door vent structure.