JPH10250414A - Structure and assembly method for instrument panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make excellent in assembly performance, seal performance and reinforcing performance, and prevent a pressure drop and noise in a flow of air. SOLUTION: In a duct member 12 having a recessed part 13, a nozzle member 20 is connected, the duct member 12 connecting the nozzle member 20 is connected to an instrument panel member 11, so that a duct connected to a blow port member 17 and a nozzle part 21 connected to a differential blow port 23 are formed into a single part with the instrument panel member 11. Accordingly, necessity for a seal process of the nozzle 21 is eliminated, apprehension of fluid flowing to the outside is decreased, assembly performance is improved, and a duct integral type instrument panel structure is formed, which is excellent in assembly performance, seal performance and reinforcing performance further with a pressure drop and noise prevented in a flow of air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure and an assembling method of an instrument panel integrally provided with a duct for air conditioning.

[0002]

2. Description of the Related Art A duct of an air conditioner is provided on the back side of an instrument panel of a vehicle, and the duct communicates with a defroster nozzle for guiding air to the inside of a window and an outlet inside the vehicle. BACKGROUND ART In recent years, in order to reduce the number of parts and facilitate assembly, various duct-integrated instrument panels provided integrally with a defroster nozzle and a duct communicating with an outlet inside a vehicle have been used.

The structure of a conventional instrument panel will be described with reference to FIG. FIG. 9 is a sectional view showing the structure of a conventional instrument panel integrated with a duct.

[0004] As shown in the figure, a vent member 3 is provided on the back surface of an instrument panel 1 of a vehicle and opens to the cabin 2 side, and a duct 4 is attached to the back surface of the instrument panel 1. I have. The duct 4 has a communication hole 5 communicating with the outlet member 3.

[0005] Further, a defroster outlet (differential outlet) 7 opening toward the front window 6 is formed on the front side of the instrument panel 1 on the vehicle, and is provided on the back of the instrument panel 1 corresponding to the differential outlet 7. Is provided with an opening 8 of the duct 4. A defroster nozzle 9 is fitted into an opening 8 on the back surface side of the instrument panel 1, and the opening 8 and the defroster nozzle 9 are joined in a state where there is no air leakage. On the bottom surface of the duct 4 and the defroster nozzle 9, the duct 1 on the air conditioner side is provided.
0 is provided in communication.

[0006] The duct 4 connected to the outlet member 3 and the duct 10 connected to the differential outlet 7 are separately formed, and after the duct 10 is fitted into the opening 8, they are respectively joined to join the duct 4 and the duct 10. The object is joined to the instrument panel 1 to form an integral part.

[0007] The air heated to a predetermined temperature by the air conditioner is sent through the duct 10 to the duct 4, and the air at the predetermined temperature is introduced into the vehicle compartment 2 from the duct 4 through the outlet member 3 at a predetermined air volume. . Further, the air heated to a predetermined temperature by the air conditioner passes through the duct 10 and the opening 8 and passes through the defroster nozzle 9.
The wind at a predetermined angle is sent from the outlet 7 to the inside of the front window 6.

[0008]

The structure of the conventional instrument panel 1 is such that a defroster nozzle 8 separate from the duct 4 is provided with a defroster nozzle 8 separate from the duct 4 in order to send wind at a predetermined angle inside the front window 6. Since it is provided inside, if the duct 4 and the defroster nozzle 8 are not securely joined, there is a possibility that the air sent from the air conditioner leaks from the joint to the outside. Duct 4 and defroster nozzle 8
In order to prevent air from leaking from the joint portion between the duct 10 and the opening 8, a sealing material such as urethane is attached to the fitting portion between the duct 10 and the opening 8, or the fitting between the duct 10 and the opening 8 is tight. We are dealing. For this reason, the structure of the conventional instrument panel 1 requires a large number of assembling man-hours and a lot of labor, and the number of parts has also increased.

A duct 4 is attached to the back of the instrument panel 1 so that the instrument panel 1
Overall rigidity is ensured. However, since the defroster nozzle 8 separate from the duct 4 is provided on the front side of the instrument panel 1, the rigidity of the instrument panel 1 as a whole on the front side is weak.

In order to integrate the duct, an instrument panel has been proposed in which an instrument panel is formed by a front surface and a back surface, and a space portion serving as a duct is formed at an appropriate position between the front surface and the back surface. Japanese Utility Model Application Laid-Open No. 2-40633). However, in order to form a space between the front surface and the back surface, a special molding process is required, and the molding becomes large.

On the other hand, in the structure of the conventional instrument panel 1, the duct 4 is joined to the back surface of the instrument panel 1, and a communication hole 5 communicating with the outlet member 3 is formed on the front side of the duct 4. Therefore, the communication hole 5
And the instrument panel 1 has a vertical wall portion 4a, and the air sent from the duct 10 into the duct 4 interferes with the vertical wall portion 4a and becomes a vortex of the wind, resulting in a pressure loss. There was a possibility that the intended air volume could not be obtained. Further, there is a possibility that air noise is generated by the vortex.

The present invention has been made in view of the above circumstances, and has a structure and an assembly of a duct-integrated instrument panel which is excellent in assembling performance, sealing performance and reinforcing performance, and which prevents pressure loss and noise of an air flow. The aim is to provide a method.

[0013]

To achieve the above object, an instrument panel according to the present invention has a structure comprising a first panel member attached to a back surface of an instrument panel member of a vehicle. In a structure of an instrument panel that forms a gap between the panel member and the instrument panel member, at least a part of the first panel member on a side facing the instrument panel member cooperates with the first panel member in a closed cross section. A second panel member forming a portion is attached, and the first panel member to which the second panel member is attached is attached to the instrument panel member.

An opening is formed in a wall of the gap, one end of an air outlet member is connected to the opening, and a fluid from the gap is guided to a surface of the instrument panel member. The other end of the air outlet member is opened, and a fluid guide member is provided on an inner wall portion of the gap portion continuous with an edge of the opening portion. Further, the fluid guide member is a plate-like member having one end extending from at least a part of the periphery of the opening and the other end connected to the inner surface of the gap.

In order to achieve the above object, a method of assembling an instrument panel according to the present invention is characterized in that a second panel member is attached to a first panel member, and the second panel member is attached to the first panel member. A first step for forming a closed cross section on at least a part of the one panel member, and after the first step, the first panel member is attached to the instrument panel member of the vehicle together with the second panel member. A second step of attaching to the back surface, forming a gap between the first panel member and the back surface, and forming a closed cross-section between the first panel member and the second panel member and the back surface. And after the second step, the first surface
Third mounting the instrument panel member to which the panel member and the second panel member are mounted on the vehicle
And a step.

The gap formed between the instrument panel member and the first panel member is a duct of an air conditioner communicating with an air outlet serving as an air outlet member, and faces the instrument panel member. The closed cross-section formed at least in part on the side in cooperation with the first panel member is a defroster nozzle of the air conditioner communicating with the defroster outlet.

[0017]

1 is a perspective view showing the structure of an instrument panel according to an embodiment of the present invention, and FIG. 2 is a sectional view of FIG.

A peripheral portion of a duct member 12 as a first panel member is attached to the back surface of the instrument panel member 11 of the vehicle, and the front and rear ends of the duct member 12 are in front of the upper surface of the instrument panel member 11 (in FIG. 2). Left side) and rear side (right side in FIG. 2). The duct member 12 is formed in an uneven shape, and the back side of the bottom surface of the concave portion 13 forming the outer surface is joined to the back surface of the instrument panel member 11. Spaces 14 and 15 having a predetermined shape are formed between the rear surface of the instrument panel member 11 and the duct member 12 with the concave portion 13 interposed therebetween.

An outlet member 17 serving as an air outlet member is provided on the rear surface on the rear side of the instrument panel member 11 as an air outlet member which opens toward the cabin 16, and the other end of the outlet member 17 (the right end in FIG. 2). Is open on the surface of the instrument panel member 11. Cabin 1 in space 14
A communication hole 19 as an opening is formed in the wall portion 18 on the sixth side, and one end (the left end in FIG. 2) of the outlet member 17 is connected to the communication hole 19.

A nozzle member 20 serving as a second panel member is attached to the front space 15 over the duct member 12 and the back surface of the instrument panel member 11, and the nozzle member 20 cooperates with the duct member 12 in the space 15. The nozzle section 21 is formed as a closed section. On the vehicle front side of the instrument panel member 11, a defroster outlet (differential outlet) 23 that opens toward the front window 22 is formed, and the differential outlet 23 communicates with the nozzle portion 21. An air conditioner-side duct 24 is provided on the bottom surface of the duct member 12, and the duct 24 communicates with the nozzle portions 21 of the spaces 14 and 15, respectively. Therefore, by joining the duct member 12 to the instrument panel member 11 in an airtight manner, the space 1
The fluid sent to the nozzle 4 and the nozzle portion 21 does not leak outside.

On the other hand, the upper edge 25 of the communication hole 19 in the space 14
The other end of the fluid guide member 26 is connected to the back surface of the instrument panel member 11 (the inner surface of the space 14).
The wall portion 18 in the space 14 is covered by the inclined plate-like member by the fluid guide member 26, and the fluid from the space 14 does not interfere with the wall portion 18 and the outlet member 1
Guided to 7.

The fluid guide member 26 will be described in detail with reference to FIG. FIG. 3 shows the appearance of the duct member 12 representing the fluid guide member 26. As shown in FIG. 3 (a), the surface of the duct member 12 which abuts on the outlet member 17 is cut into the shape of the communication hole 19 except for the lower edge 25 of the wall 18 (shown by a dotted line in the figure). The fluid guide member 2 is bent inward (in the direction of the arrow in the figure) using the lower edge 25 as a hinge.
6, and a communication hole 19 is formed. Then, FIG. 3 (b)
, The fluid guide member 26 facing the lower edge 25
Is joined to the back surface of the instrument panel member 11.

Another example in which the fluid guide member 26 is provided will be described with reference to FIG. FIG. 4 shows the appearance of the duct member 12 showing another example of forming the fluid guide member 26. FIG.
As shown in (a), the outlet member 1 of the duct member 12
The surface abutting on 7 is cut out in a shape of a portion corresponding to the wall portion 18 and the communication hole 19 except for the upper edge 27 serving as a hinge (shown by a dotted line in the figure), and the height corresponding to the height of the wall portion 18 from the upper edge 27 is shown. A hinge portion 28 (shown by a two-dot chain line in the figure) having a reduced thickness is formed in a position parallel to the upper edge 27.

As shown in FIG. 4 (b), the lower part of the part cut out around the hinge part 28 is bent inward (in the direction of the arrow in the figure), and the part cut out around the upper edge 27 is further bent. It is rotated 360 degrees outward (in the direction of the arrow in the figure). Then, as shown in FIG. 4C, the side 28a of the fluid guide member 26 facing the hinge portion 28 is joined to the back surface of the instrument panel member 11 to form the fluid guide member 26, and the communication hole 19 is formed. It is formed.

By forming the fluid guide member 26 as shown in FIGS. 3 and 4, the fluid from the space 14 is
Can be provided without increasing the number of components and the number of assembling steps. In the above embodiment,
The fluid guide member 26 is formed by cutting and bending a surface of the duct member 12 that comes into contact with the outlet member 17 into a predetermined shape. However, another member is provided on the back side of the wall portion 18 in the space 14 to provide fluid guide. It can also be a member.

As shown in FIG. 2, various electric components such as audio equipment and an air conditioner control 31 are provided on the vehicle compartment 16 side of the instrument panel member 11. As shown in FIGS. 1 and 2, the air conditioner control 31 (similarly for other electrical components) is connected to a power supply via a wire 33 and a connector 34 which branch off from a harness 32 as a harness member. .

The support of the harness 32 and the electric wire 33 will be described with reference to FIG. 2 and FIGS. FIG. 5 is a perspective view of the duct member 12 showing the state of support of the harness 32 as viewed from the lower surface, FIG. 6 is a perspective view of another example of the arrangement of the rib members, and FIG. FIG. 8 shows a perspective state of the part, and FIG. 8 shows a state viewed from the line VIII-VIII in FIG.

As shown in FIG. 2 and FIG.
The harness 32 is accommodated in the recess 13 of the harness 3.
2 is a plurality of rib members 3 integrally formed with the duct member 12.
5 sandwiched in the recess 13. Rib member 35
Are projected from the upper and lower wall surfaces of the recess 13 with the harness 32 interposed therebetween, and are projected from the wall surface of the recess 13 in the longitudinal direction. In the illustrated example, the rib members 35 are provided at four places, and the rib members 35a and 35b provided on the wall surface on the space 14 side and the rib members 35c and 35d provided on the wall surface on the space 15 side are the same in the vertical direction. And the rib members 35a and 35b and the rib member 35
c and 35d are arranged so as to be shifted in the longitudinal direction (left-right direction of the vehicle).

As described above, the two rib members 35 are arranged at the same position in the vertical direction, and the two rib members 35 at the same position in the vertical direction are shifted from each other in the longitudinal direction. Die cutting when the member 35 is integrally formed can be easily performed.

The locations at which the rib members 35 are provided are not limited to four, and an appropriate number of rib members 35 can be provided according to the shape of the harness 32. As shown in FIG. 6, four rib members 35a, 35b, 35c, 3
It is also possible to dispose the position of 5d vertically and vertically. Further, the rib member 35 may be provided with only lower rib members 35a and 35c (lower side in FIG. 2, upper side in FIGS. 5 and 6).

The harness 32 is connected to the recess 13 of the duct member 12.
The harness 32 can be accommodated by using the harness 32 without using a member such as a clip. Further, since the harness 32 is formed by bundling a plurality of electric wires, the diameter of the harness 32 is not constant.
By sandwiching 2, the harness 32 having a variation in diameter can be reliably accommodated in the recess 13.

As shown in FIGS. 7 and 8, a pair of guide ribs 36 are protrudingly provided near the recess 13 on the surface of the duct member 12 at the branch portion of the electric wire 33. An electric wire 33 branching from the harness 32 is arranged between them. The guide rib 36 is provided at at least one location where the electric wire 33 branches. By positioning and supporting the electric wires 33 at the branch portions, the branch portions of all the electric wires 33 are positioned, and the position of the harness 32 in the longitudinal direction is determined.

The branch portion of the electric wire 33 is a pair of guide ribs 3
6, the position of the electric wire 33 with respect to the electrical components (air conditioner control 31) provided on the instrument panel member 11 is accurately determined, and when the connector 34 is connected to the air conditioner control 31, Will not be loosened or pulled backwards, and will always be placed in the proper state.

A method for assembling the above-described instrument panel structure will be described.

The nozzle member 2 is provided at a predetermined position of the duct member 12 which is formed into a shape in which a rib member 35 is provided in the recess 13 and a guide rib 36 is provided in the vicinity of the recess 13.
0 is joined so that the instrument panel member 11 and the nozzle member 20 can form the nozzle portion 21 having a closed cross section (first step).

After joining the nozzle member 20 to the duct member 12, that is, after the first step, the duct member 12 to which the nozzle member 20 is joined is joined to the back surface of the instrument panel member 11 of the vehicle. As a result, spaces 14 and 15 are formed between the back surface of the instrument panel member 11 and the duct member 12 with the recess 13 interposed therebetween.
The nozzle portion 21 is formed in the duct 5 between the duct member 12 and the nozzle member 20 and the back surface of the instrument panel member 11 (second step).

Then, a portion of the duct member 12 cut off with the lower edge 25 on the front side as a hinge is bent inward to form the communication hole 19 as the fluid guide member 26, and the fluid guide member facing the lower edge 25 is formed. The side 25a of 26 is joined to the back surface of the instrument panel member 11.

The duct member 1 to which the nozzle member 20 is joined
2 is bonded to the back of the instrument panel member 11 of the vehicle, that is, after the second step, the instrument panel member 11 to which the duct member 12 and the nozzle member 20 are bonded is mounted on the vehicle (third step). ). A duct 24 on the air conditioner side is provided in communication with the space 14 (duct) connected to the outlet member 17 and the bottom surface of the nozzle 21 connected to the differential outlet 23.

After the instrument panel member 11 is mounted on the vehicle, the harness 3 is inserted into the recess 13 of the duct member 12.
2 is inserted and clamped by the plurality of rib members 35, and the electric wire 33 branched from the harness 32 is connected to the pair of guide ribs 3.
6 between. By arranging the electric wire 33 between the guide ribs 36, the position of the harness 32 in the longitudinal direction is maintained at a predetermined position. For this reason, the positioning of the electric wire 33 with respect to the air conditioner control 31 on the instrument panel member 11 side can be performed easily and accurately without marking.

The air heated to a predetermined temperature by the air conditioner is sent to the space 14 through the duct 24,
Air having a predetermined temperature is introduced into the vehicle interior 16 at a predetermined air volume through the outlet 9 and the outlet member 17. At this time, space 14
The fluid passing through the communication hole 19 is guided by the fluid guide member 26 and sent to the outlet member 17 without interfering with the wall portion 18. The air heated to a predetermined temperature by the air conditioner passes through the duct 24 and the space 15 and passes through the nozzle 21.
Is sent to the inside of the front window 22 from the differential outlet 23.

According to the structure of the instrument panel described above, the nozzle member 20 is joined to the duct member 12 having the recess 13 and the duct member 1 to which the nozzle member 20 is joined.
By joining 2 to the instrument panel member 11, the duct connected to the outlet member 17 and the nozzle portion 21 connected to the differential outlet 23 can be integrated with the instrument panel member 11. For this reason, the sealing process of the nozzle part 21 becomes unnecessary, the possibility of fluid leakage to the outside is reduced, and the assembling performance is improved.

The instrument panel member 11 is joined with a one-piece duct member 12 from the front to the rear of the vehicle, and has a closed cross section together with the recess 13 and the nozzle member 20. 11 can be reinforced.

Further, since the air sent from the space 14 to the outlet member 17 is guided by the fluid guide member 26 and does not interfere with the wall portion 18, the air does not become a vortex and a pressure loss always occurs. The intended air volume can be obtained, and there is no fear of generating air noise. Further, since a part of the surface of the duct member 12 facing the outlet member 17 is cut out and the fluid guide member 26 is provided integrally with the duct member 12, the fluid guide member is increased without increasing the number of parts and the number of assembling steps. 26 can be provided.

In the above-described method of assembling the instrument panel, the first step of joining the nozzle member 20 to the duct member 12 and the second step of joining the duct member 12 to which the nozzle member 20 is joined to the instrument panel member 11 are performed. 2
And a third step of mounting the instrument panel member 11 in which the nozzle member 20 and the duct member 12 are integrated into a vehicle. For this reason, the instrument panel member 11 in which the duct including the front defroster duct is integrated can be easily and accurately created, and an instrument panel excellent in assembling performance, sealing performance and reinforcing performance can be obtained. It becomes possible.

According to the structure of the instrument panel described above, the harness 3 is inserted into the recess 13 of the duct member 12.
2 is inserted and the rib member 35 is protruded from the wall surface of the concave portion 13 so as to clamp the harness 32. Therefore, the harness 32 can be stored without using a member such as a clip, and the number of parts and the number of work steps are reduced. Reduction and cost reduction can be achieved. In addition, even if the diameter of the harness 32 varies, the variation in the diameter is absorbed by the rib member 35, and the harness 32 can be securely accommodated in the concave portion 13, so that the harness 32 flaps or engages with another coupling member. No more getting stuck.

The harness 3 is formed by the guide rib 36.
Since the electric wire 33 branching from the position 2 is arranged between the pair of guide ribs 36, the position of the harness 32 in the longitudinal direction is maintained at a predetermined position. For this reason, the positioning of the electric wire 33 with respect to the electrical equipment on the instrument panel member 11 side can be easily and accurately performed without performing marking or the like, the assembling performance of the harness 32 is improved, and the electric wire 3
3 will not be too loose or too nervous.

[0047]

The structure of the instrument panel according to the present invention is characterized in that the second panel member is joined to the first panel member, and the first panel member joined to the second panel member is joined to the instrument panel member. The gap including the duct of the front defroster is integrated with the instrument panel member. For this reason, by ensuring the sealing process of the first panel member with respect to the instrument panel member, the possibility of fluid leakage from the duct including the front defroster duct to the outside is reduced, and the assembling performance is improved. Also, by providing the second panel member that forms a closed cross section in cooperation with the first panel member,
It is possible to reinforce the entire instrument panel member.

Further, an opening is formed in the wall surface of the gap portion facing the air outlet member, and the fluid guide member is provided on the inner wall portion of the gap portion continuously to the edge of the opening portion. The sent air is guided by the fluid guide member and does not interfere with the wall surface. For this reason, an aimed air volume can be always obtained without a pressure loss due to a wind vortex, and there is no possibility of generating air noise. Further, since the fluid guide member is a plate-like member having one end extending from at least a part of the periphery of the opening and the other end connected to the inner surface of the gap, the fluid guide member can be provided without increasing the number of parts and assembly steps. A member can be provided.

As a result, it is possible to provide a duct-integrated instrument panel structure which is excellent in assembling performance, sealing performance and reinforcing performance, and which prevents pressure loss and noise of air flow.

Further, in the method of assembling an instrument panel according to the present invention, a first step of joining a second panel member to a first panel member, and a step of joining the first panel member joined to the second panel member to an instrument panel member And a third step of mounting an instrument panel member in which the second panel member and the first panel member are integrated into a vehicle. For this reason, it is possible to easily and accurately create an instrument panel member that integrates the space including the duct of the front defroster, and it is possible to provide an instrument panel with excellent assembly performance, sealing performance, and reinforcement performance. Becomes

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a structure of an instrument panel according to an embodiment of the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is an external view of a duct member 12 representing a fluid guide member 26.

FIG. 4 is an external view of a duct member 12 showing another example of forming the fluid guide member 26.

FIG. 5 shows a duct member 12 indicating a support state of a harness 32.
FIG.

FIG. 6 is a perspective view illustrating another example of the arrangement of the rib members.

FIG. 7 is a perspective view of a portion where the electric wire 33 branches.

FIG. 8 is a view taken along line VIII-VIII in FIG. 7;

FIG. 9 is a cross-sectional view illustrating a structure of a conventional instrument panel integrated with a duct.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Instrument panel member 12 Duct member 13 Concave part 14, 15 Space 16 Chamber 17 Outlet member 18 Wall part 19 Communication hole 20 Nozzle member 21 Nozzle part 22 Front window 23 Defroster outlet (Diff outlet) 24 Duct 25 Upper edge Part 26 fluid guide member 27 upper edge 28 hinge part 31 air conditioner control 32 harness 33 electric wire 34 connector 35 rib member 36 guide rib

Claims (4)

[Claims] A first panel member attached to a back surface of an instrument panel member of a vehicle, wherein a gap is formed between the back surface and the first panel member; A second panel member that forms a closed cross section in cooperation with the first panel member is attached to at least a part of the side facing the instrument panel member, and the first panel member to which the second panel member is attached is attached. A structure of an instrument panel, wherein a panel member is attached to the instrument panel member. 2. The device according to claim 1, wherein an opening is formed in a wall of the gap, one end of an air outlet member is connected to the opening, and fluid from the gap is formed on a surface of the instrument panel member. The other end of the air outlet member is opened to guide the air outlet member, and a fluid guide member is provided on an inner wall portion of the gap portion continuous with an edge of the opening portion. 3. The fluid guide member according to claim 2, wherein one end of the fluid guide member is a plate-shaped member extending from at least a part of a periphery of the opening and the other end is connected to an inner surface of the gap. Characteristic instrument panel structure. 4. A first panel for attaching a second panel member to a first panel member to form a closed cross section in at least a part of the first panel member by the first panel member and the second panel member. After the first step, the first panel member is attached to the back surface of the instrument panel member of the vehicle together with the second panel member, and a gap is provided between the first panel member and the back surface. A second step of forming a closed cross section between the first panel member and the second panel member and the back surface, and after the second step, the first panel member is formed on the back surface. And a third step of mounting, on the vehicle, the instrument panel member to which the second panel member is attached, a method of assembling an instrument panel.