JP5217678B2 - Instrument panel duct structure - Google Patents

Description

  The present invention relates to a duct structure for an instrument panel.

As a duct structure of a conventional instrument panel, a pair of protruding wall portions (duct wall portions) parallel to each other are provided on the back surface of the panel base material, and an opening formed between these protruding wall portions is formed as a band-shaped lid member ( It is known that a duct is formed by covering both side edges in the width direction of the lid member with the tip edge of the protruding wall portion with an adhesive (for example, Patent Document 1).
JP 2002-205528 A

  However, in such a conventional structure, since the seal (mainly airtight) is secured between the lid member and the protruding wall portion by the adhesive, the adhesive should be applied with great care so as to eliminate the adhesive unevenness. There is a need to do. For this reason, productivity has been lowered, and the associated costs have been increased.

  Therefore, the present invention seeks to obtain an instrument panel duct structure capable of further improving productivity.

The present invention forms a concave groove portion that opens on the cover base side in the panel base material, covers the opening of the concave groove portion with a lid member to form a duct, and presses the lid member against the panel base material by the cover portion , One of the panel base member and the lid member is formed on the outside of the recessed groove portion and extends substantially parallel to the recessed groove portion, and the other is inserted into the second recessed groove portion. Formed on the widthwise outer side surface of the second groove portion and the side surface of the convex portion facing the side surface in the opening direction of the second groove portion. Forming an inclined surface that is inclined with respect to the panel base material, and pressing the lid member against the panel base material so that the inclined surface and the other abutting surface corresponding to the inclined surface are pressed against each other; The width of the concave groove portion by the inclined surface and the contact surface Outwardly, the most important feature that the formation of the annular seal portion mutually brought into close contact with side surfaces between the convex portion of the second groove portion in the longitudinal direction of the groove portion.

According to the present invention, by pressing the lid member against the panel base material by the covering portion, the surface pressure of the seal portion between the lid member and the panel base material can be increased and the sealing performance can be enhanced. That is, as compared with the conventional case where the seal is secured only with the adhesive, the duct sealability can be secured more easily, and the productivity can be increased accordingly.
Further, in the present invention, the strip-shaped seal portion in which the side surface of the panel base material and the side surface of the lid member are in close contact with each other along the longitudinal direction of the concave groove portion is formed on both sides in the width direction of the concave groove portion. Sex can be ensured more reliably.
Further, in the present invention, the second concave groove portion that is located outside the concave groove portion and extends substantially parallel to the concave groove portion is formed in one of the panel base member and the lid member, and the second concave portion is formed in the other. A ridge to be inserted into the groove is formed. According to such a configuration, there is an advantage that it is easy to enhance the sealing performance due to the concave and convex shapes that are fitted to each other, and the lid member can be positioned more easily. Moreover, there is an advantage that it becomes easy to set the belt-shaped seal portion by using the uneven shape.
In the present invention, the inclined surface that is inclined with respect to the opening direction of the second groove portion on either the side surface on the outer side in the width direction of the second groove portion or the side surface of the ridge portion facing the side surface. , And the cover member is pressed against the panel base material to press the contact surface corresponding to the side surface against the side surface, and the belt-shaped seal portion is formed by the side surface and the side surface. According to such a configuration, as the lid member is pushed into the panel base material side, the adhesiveness between the side surfaces of the belt-shaped seal portion can be increased, and therefore the sealability of the belt-shaped seal portion can be improved relatively easily.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same component is contained in several embodiment shown below. Therefore, the same constituent elements are given common reference numerals, and redundant description is omitted. In the following, the vehicle interior side of the instrument panel (outer wall) is referred to as the front side, and the opposite side (that is, the side covered with the outer wall) is referred to as the back side. In all of FIGS. 1 to 5, the upper side is the front side and the lower side is the back side.

  (First Embodiment) FIG. 1 is a sectional view of a duct structure of an instrument panel according to this embodiment, and FIG. 2 is an enlarged view of a portion II in FIG.

  As shown in FIG. 1, the instrument panel 1 includes a panel base 2 formed of a metal plate or a hard plastic that forms the skeleton of the instrument panel 1, and a covering portion that covers the surface 2F of the panel base 2. 3 is provided.

  The covering portion 3 includes a foam material layer 3P formed of a foamable resin material and the like, and a skin 3B that covers the surface side of the foam material layer 3P. The foam material layer 3P is expanded between the panel base material 2 and the skin 3B after being introduced in an unfoamed state.

  In addition, a duct 10 for supplying conditioned air or the like is disposed on the back side of the panel substrate 2 (lower side in FIG. 1). In the present embodiment, the groove 10 is formed on the surface 2F of the panel base material 2 so as to open toward the cover 3, and the opening 12 of the groove 11 is covered with the lid member 13 to form the duct 10. In such a configuration, the lid member 13 is pressed against the panel base material 2 by the covering portion 3.

  The groove 11 has a pair of side walls 11S and a bottom wall 11B, and is recessed in a substantially U-shaped cross section. Further, the end surface S on the opening 12 side of the side wall 11S is lowered by one step from the surface 2F of the general part of the panel base 2 by the thickness of the lid member 13, and the surface 13F of the lid member 13 placed on the end surface S is lowered. The outer surface 13 </ b> O on the front side and the surface 2 </ b> F of the general part of the panel base material 2 are substantially flush with each other. Further, the width W1 of the lid member 13 is made larger than the opening width W2 of the opening 12 of the recessed groove portion 11, and both side edges 13S in the width direction (substantially left-right direction in the figure) of the lid member 13 are placed on the end surface S. It can be done.

  Further, as shown in FIG. 2, a position adjacent to the outer side in the width direction of the groove 11 with respect to the end surface S is formed in the surface 2 </ b> F of the panel base material 2 so as to be relatively shallow in a linear shape. A second groove portion 14 that extends in parallel with 11 and opens to the front side is formed, and a convex strip portion 15 that protrudes toward the back side formed on both side edge portions 13 </ b> S of the lid member 13 in the second groove portion 14. Is inserted from the front side.

  Here, in the present embodiment, as shown in FIG. 2, the outermost side surface 15a in the width direction, which is a part of the outer surface 13O of the lid member 13, and the second recess as a contact surface facing the side surface 15a. The band-shaped seal portion BS is formed by closely contacting the side surface 14a of the groove portion 14 with each other. The side surface 14a is a part of the surface 2F of the panel base material 2. 2 shows one side in the width direction of the groove 11 (the right side in FIG. 1), the other side in the width direction of the groove 11 (the left side in FIG. 1) also has the same structure as in FIG. It has become. That is, in the present embodiment, the strip-shaped seal portion BS is extended along the longitudinal direction of the concave groove portion 11 on both sides in the width direction of the concave groove portion 11.

  Here, the side surface 14 a of the second groove portion 14 is an inclined surface that goes outward in the width direction of the groove portion 11 as it goes outward in the opening direction of the groove portion 11, and the lid member 13 is pressed against the panel substrate 2. The side surface 15a of the ridge 15 of the lid member 13 is pressed against the side surface 14a as the cover member 13 is pressed, so that the adhesion is enhanced.

  And in this embodiment, it is suitable to form both the panel base material 2 and the cover member 13 with a synthetic resin material, and to form the cover member 13 with an elastic material more flexible than a panel base material 2, and more flexible. It is.

  As described above, according to the duct structure of the instrument panel according to the present embodiment, the groove portion 11 that opens to the cover portion 3 side is formed in the panel base material 2, and the opening 12 of the groove portion 11 is formed as a lid member. By covering with 13, the duct 10 can be formed on the back side of the panel substrate 2. In this embodiment, the lid member 13 is pressed against the panel base material 2 by the covering portion 3. By doing so, with a relatively simple configuration, the surface pressure of the belt-like seal portion BS as a seal portion between the lid member 13 and the panel base 2 can be increased, and a required sealing property can be ensured. In particular, in this embodiment, the lid member 13 can be easily pressed against the panel base material 2 by the pressure of the foam material layer 3P generated by foaming between the panel base material 2 and the skin 3B.

  According to such a configuration, it is not necessary to ensure sealing performance with only the adhesive, so that the adhesive application process can be performed more quickly and easily, or the application of the adhesive can be omitted. It becomes like this. Therefore, the formation of the duct 10 and the securing of the sealing property can be achieved relatively easily, and the productivity can be increased, which contributes to the reduction of the manufacturing cost.

  Moreover, in this embodiment, the surface 2F (side surface 14a of the 2nd ditch | groove part 14 in this embodiment) and a lid | cover on the width direction both sides of the ditch | groove part 11 along the longitudinal direction of the said ditch | groove part 11 are covered. A band-shaped seal portion BS is formed in which the outer surface 13O of the member 13 (in this embodiment, the side surface 15a of the convex portion 15 of the lid member 13) is in close contact with each other. Thus, by setting the strip-shaped seal portions BS on both sides in the width direction of the concave groove portion 11, the airtightness of the duct 10 can be more reliably ensured, and the flow before the foaming material layer 3P is foamed. It can suppress more reliably that the foaming material in a state of property flows into the duct 10.

  Moreover, in this embodiment, it goes to the surface 2F of the panel base material 2 with respect to the opening direction of the ditch | groove part 11, and specifically goes to the width direction outer side of the said ditch | groove part 11 toward the opening direction outward. The side surface 14a is formed as an inclined surface, and the cover member 13 is pressed against the panel base material 2, thereby pressing the side surface 15a of the ridge 15 as a contact surface corresponding to the side surface 14a. The belt-like seal portion BS was formed by the side surface 14a and the side surface 15a. According to such a configuration, as the cover member 13 is pushed into the panel base material 2 side, the adhesiveness between the side surfaces 14a and 15a at the band-shaped seal portion BS can be enhanced, and therefore the sealing performance of the band-shaped seal portion BS is relatively easy. Can be improved. In addition, the inclination direction (inclination angle with respect to the opening direction) and the installation position of the inclined surface are not limited to the example of this embodiment, and the inclined surface and the contact surface are pressed by pressing the lid member 13 against the panel substrate 2 side. Any configuration can be used as long as they can be pressed against each other.

  In the present embodiment, the lid member 13 is made of a material that is more flexible than the panel base material 2. That is, in the present embodiment, at least the lid member 13 among the portion where the surface 2F of the panel base material 2 forming the strip-shaped seal portion BS is formed and the portion where the outer surface 13O of the lid member 13 contacting the surface 2F is formed. The portion where the outer surface 13O is formed is made of an elastic material, and the surface 2F and the outer surface 13O are elastically adhered to each other. For this reason, the flexibility (elasticity) of the lid member 13 is utilized while the required rigidity and strength as the skeleton of the instrument panel can be easily secured by forming the panel base material 2 from a relatively hard material. There is an advantage that it becomes easy to improve the sealing performance of the belt-like seal portion BS as the seal portion. In addition, it is not essential to mold the entire lid member 13 with a material having flexibility or elasticity suitable for sealing, and a part of the sealing member BS is partially sealed by two-color molding or the like. A portion made of a material having flexibility or elasticity suitable for the above may be set. Of course, a portion made of a flexible or elastic material suitable for sealing may be set on the panel base 2 side.

  Moreover, in this embodiment, while providing the 2nd groove part 14 in the side edge part 12S of the opening 12 of the groove part 11, the protruding item | line inserted in the 2nd groove part 14 in the side edge part 13S of the cover member 13 is provided. A portion 15 is formed. According to such a configuration, it is easy to improve the sealing performance by the concave and convex shapes that are fitted to each other, and there is an advantage that the lid member 13 can be positioned more easily. There is also an advantage that it becomes easy to set the belt-like seal portion BS by using the uneven shape.

  FIG. 3 is a cross-sectional view of the vicinity of the side edge of the lid member of the duct structure of the instrument panel according to the modification of the first embodiment (substantially the same position as FIG. 2).

  In this modified example, the side surface 11S of the groove 14 is extended to the lid member 13 side to project the sub-projections 16, and the thickness of the sub-projections 16 is at a position corresponding to the sub-projections 16 on the back side of the lid member 13. A pair of convex wall portions 17 are provided with a width slightly smaller than the length T, and the sub-ridges 16 as the convex strip portions are press-fitted into the concave groove portions 14 </ b> A formed between the convex wall portions 17. At this time, the sub ridge 16 is formed of a material having higher flexibility than the main body of the panel base 2 or the lid member 13 by two-color molding.

  According to this modification, in addition to the concave groove portion 14 and the convex strip portion 15, a seal portion can be formed between the concave groove portion 14 </ b> A and the sub convex strip 16, and the duct 10 can be sealed. This can be further improved.

  (Second Embodiment) FIG. 4 is a sectional view of a duct structure of an instrument panel according to this embodiment.

  As shown in FIG. 4, also in the present embodiment, as in the first embodiment, the groove portion 11 that opens to the cover portion 3 side (front side) is formed in the panel base material 2, and the opening 12 of the groove portion 11 is formed. Is covered with a lid member 13 to form a duct. Also in the present embodiment, the surface 13F of the lid member 13 and the surface 2F of the general part of the panel substrate 2 are substantially flush.

  However, in the present embodiment, the surfaces 2F and 13F of the panel base material 2 and the lid member 13 are covered with the covering portion 3 made of only the skin 3B, and between the back side of the skin 3B and the front side of the panel base material 2 and the lid member 13 For example, a sheet-like adhesive layer is disposed in advance in the gap, and air is sucked from the gap through the exhaust port 18 penetrating the panel base material 2 using a suction device or the like, so that the skin 3B is The point which pressed against the panel base material 2 and the cover member 13 side and improved the adhesiveness of the panel base material 2 and the cover member 13 by this differs from the said 1st Embodiment.

  According to such a configuration, the lid member 13 can be pressed against the side edge portion 12S of the concave groove portion 11 by the skin 3B, so that the lid member 13 can be attached and fixed to the skin 3B. And it becomes easy to make the skin 3B, the panel base material 2, and the lid member 13 adhere closely, and it becomes easy to ensure the sealing performance between the panel base material 2 and the lid member 13, and seals the duct 10 Can be improved.

  In particular, in the present embodiment, the lid member 13 is removed from the space between the panel base material 2 and the lid member 13 and the skin 3B and bonded to each other by a relatively simple operation to bond the lid member 13 to the side edge portion 12S of the groove 11. It is possible to enhance the sealing performance between the panel base material 2 and the lid member 13.

  That is, even in the present embodiment, the lid member 13 can be fixed using the existing covering portion 3 that covers the surface 2F of the panel base material 2 as in the first embodiment. It is possible to increase the productivity while achieving the formation and the sealing performance more easily and at a lower cost.

  (Third Embodiment) It is a sectional view of a duct structure of an instrument panel according to this embodiment.

  As shown in FIG. 5, in this embodiment as well, in the same manner as in the above embodiment, the panel substrate 2 is formed with a groove 11 that opens to the cover 3 side (front side), and the opening 12 of the groove 11 is covered with a lid. A duct is formed by covering with a member 13. Also in the present embodiment, the surface 13F of the lid member 13 and the surface 2F of the general part of the panel substrate 2 are substantially flush.

  However, in the present embodiment, the surfaces 2F and 13F of the panel base material 2 and the lid member 13 are covered with the covering portion 3 made only of the skin 3B, and the skin 3B is wound around and attached to the back side of the panel base 2 and is produced by this attachment. The point that the lid member 13 is pressed against the panel base material 2 by the tension of the outer skin 3B is different from the above embodiment.

  Specifically, both side portions of the panel base material 2 were bent to the back side at a predetermined interval from the side wall of the stepped portion, and the skin 3B was wound around the gap δ from the side edge of the panel base material 2 to the back side. A locking member 20 having a U-shaped cross section that covers the outside of the groove 11 is provided while the end is pushed in, and both end portions 20E of the locking member 20 are press-fitted into the gap δ.

  According to such a configuration, the lid member 13 can be pressed against the side edge portion 12S of the concave groove portion 11 by the tension of the skin 3B, so that the lid member 13 can be attached and fixed to the skin 3B. And it becomes easy to adhere | attach the skin 3B, the panel base material 2, and the cover member 13, and it becomes easy to ensure the sealing performance between the recessed groove part 11 and the cover member 13 in connection with this, The sealing performance of the duct 10 Can be improved.

  In particular, in the present embodiment, the cover member 13 is pressed against the side edge portion 12S of the recessed groove portion 11 by a relatively simple operation of winding the skin 3B around the back side of the panel base material 2 and fixing it. The sealing performance with the lid member 13 can be improved.

  That is, even in the present embodiment, the lid member 13 can be fixed using the existing covering portion 3 that covers the surface 2F of the panel base material 2 as in the above-described embodiment. Further, productivity can be increased while ensuring sealing performance more easily and at a lower cost.

  In addition, also in the said 2nd, 3rd embodiment, the ditch | groove part 14 and the protruding item | line part 15 which were shown in the said 1st Embodiment can be formed. In addition, when a gap is formed between the lid member 13 and the panel base material 2, as shown in FIGS. 4 and 5, stickers 19 and 21 having a stretchability of about 1 mm in thickness are attached to the gap. It is preferable to close the door.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

It is sectional drawing of the duct structure of the instrument panel concerning 1st Embodiment of this invention. It is an enlarged view of the II section in FIG. It is sectional drawing of the side edge part vicinity (position substantially the same as FIG. 2) of the cover member of the duct structure of the instrument panel concerning the modification of 1st Embodiment of this invention. It is sectional drawing of the duct structure of the instrument panel concerning 2nd Embodiment of this invention. It is sectional drawing of the duct structure of the instrument panel concerning 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument panel 2 Panel base material 2F (Panel base material) Surface 3 Cover part 3B Skin 3P Foam layer 10 Duct 11 Groove part 12 Opening 13 Lid member 13F (Lid member) surface 13O (Lid member) outer surface 14 (Second) concave groove portion 14a inclined surface 15 ridge 15a contact surface BS strip-shaped seal portion (seal portion)

Claims (5)

A panel base material, and a covering portion covering the surface of the panel base material,
Forming a groove portion that opens to the cover portion side in the panel base material, forming a duct by covering the opening of the groove portion with a lid member, pressing the lid member against the panel base material by the cover portion ,
One of the panel base member and the lid member is formed with a second groove portion that is located outside the groove portion and extends substantially parallel to the groove portion, and the second groove portion on the other side. Forming the ridges to be inserted,
An inclined surface that is inclined with respect to the opening direction of the second groove portion is formed on either the side surface on the outer side in the width direction of the second groove portion or the side surface of the ridge portion facing the side surface. By pressing the lid member against the panel base material, the inclined surface and the other contact surface corresponding to the inclined surface are pressed against each other, and the inclined surface and the contact surface, A band-shaped seal portion is formed on the outer side in the width direction of the concave groove portion, in which the side surface of the second concave groove portion and the side surface of the convex strip portion are in close contact with each other along the longitudinal direction of the concave groove portion. The instrument panel duct structure. Of the portion of the side surface of the lid member abuts against the portion and the side surface side surface is formed of the panel substrate which constitutes the annular seal portion is formed, to form the at least one elastic material, duct structure of the instrument panel according to claim 1, characterized in that the said side surface and the side surface and so as to elastically contact. The duct structure for an instrument panel according to claim 1 or 2 , wherein the lid member is made of a material that is more flexible than the panel base material. The covering portion includes a foam layer, according to any one of claims 1-3, characterized in that the urge said lid member to the panel substrate by foaming the foam layer The instrument panel duct structure. The covering portion includes a skin, and the skin is wound around the back side of the panel base material to generate tension on the skin, and the lid member is pressed against the panel base material by the tension. The duct structure of the instrument panel as described in any one of 1-4 .

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