JP2018144674A - Instrument panel structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize easy assembly of a design panel while realizing certain drop prevention of the design panel locked on a vehicular side panel.SOLUTION: A passenger seat air bag apparatus 40 is arranged in an inner space of a vehicular side panel 10. A locking claw part 21 of a design panel 20 is locked on a locking hole 15 formed on the vehicular side panel 10. A drop prevention hole 17 is formed on the vehicular side panel 10, which comprises an upper opening part 17a and a lower opening part 17b communicated with it. The design panel 20 comprises a drop prevention piece part 23 having a long length. The drop prevention piece part 23 has an extension part 24 to be a middle section and a locking projection part 25 formed on a tip end part of the extension part 24. The locking projection part 25 is designed to allow insertion of the upper opening part 17a, but not to allow insertion of the lower opening part 17b. The extension part 24 has a narrow width so as to allow insertion of the lower opening part 17b.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an instrument panel structure.

  Some instrument panels lock the design panel on the surface on the passenger seat side of the vehicle body side panel (main body part of the instrument panel) from the viewpoint of improving the appearance of the instrument panel. That is, the latching claw part provided in the design panel is latched with the latching hole provided in the vehicle body side panel.

  On the other hand, it is common to equip the interior space of the instrument panel with a passenger seat airbag. When this passenger seat airbag is activated, a considerable impact is applied to the instrument panel, so that the design panel is likely to drop off.

  In Patent Document 1 and Patent Document 2, the design panel is locked to the surface of the vehicle body side panel using the locking hole and the locking claw, and the design panel is longer than the locking claw. The locking claw part for preventing falling off is provided so that when the locking action of the locking claw part is released by impact, the locking claw part for falling off is locked to the vehicle body side panel. What prevents the panel from falling off is disclosed.

  In the device described in Patent Document 1, first, a long drop-off locking claw portion formed on the design panel is inserted into a drop-off prevention locking hole formed on the vehicle body side panel. While the design panel is largely swung, the locking claw portion is aligned with the locking hole of the vehicle body side panel, and then the locking claw portion is inserted into the locking hole. In the thing of patent document 2, only the elongate latching claw part provided in the design panel is longer than a normal latching claw part, and it has big resistance with respect to the latching hole for dropout prevention. It is inserted while receiving.

Japanese Patent Laying-Open No. 2015-20470 JP 2004-230969 A

  In the device disclosed in Patent Document 1, the design panel is greatly swung while the locking claw portion for preventing dropout is inserted into the locking hole for dropout prevention, and the locking claw portion of the design panel is moved to the body side panel. Since it is necessary to align with the locking hole, the assembling property of the design panel is poor. Moreover, in the thing of patent document 1, when swinging a design panel at the time of an assembly | attachment, there is a possibility that a long drop-off prevention locking projection may be broken, which is not preferable.

  Moreover, in the thing of patent document 2, since the latching protrusion part for drop-off prevention is long, since it inserts it receiving a big resistance with respect to the latching hole for drop-off prevention, the assemblability is bad. In addition, the drop-off preventing piece is easily buckled and deformed during the insertion. In addition, if it is attempted to smoothly insert into the dropout prevention locking hole, it is necessary to make the lockout hole for dropout prevention correspondingly larger, and the locking action utilizing the locking projection part for dropout prevention Will be weak.

  The present invention has been made in consideration of the above circumstances, and its purpose is to facilitate assembly of the design panel while reliably preventing the design panel locked to the vehicle body side panel from falling off. An object of the present invention is to provide an instrument panel structure that can be used.

In order to achieve the above object, the following solution is adopted in the present invention. That is, as described in claim 1,
An instrument panel structure in which a passenger seat airbag is disposed in the interior space of the vehicle body side panel, and a design panel is locked to the surface of the passenger seat side of the vehicle body side panel,
A locking hole and a drop-off preventing hole are provided on a surface on the passenger seat side of the vehicle body side panel, a locking claw portion that is locked to the locking hole on the back side of the design panel, and the locking claw A drop-off prevention piece portion that is longer than the portion and locked in the drop-off prevention hole is formed to protrude,
The dropout prevention hole has a shape having an upper opening and a lower opening that is connected to the lower edge of the upper opening and is narrower than the upper opening.
The drop-off preventing piece has an extended portion and a locking projection formed at the tip of the extended portion,
The extending portion is set to be narrow enough to be inserted through the upper opening and the lower opening,
The locking protrusion is set to be wide enough to be inserted through the upper opening but not through the lower opening,
In the locked state in which the locking claw is inserted into the locking hole, the extended portion is inserted into the lower opening, and the locking protrusion is further on the back side than the lower opening. It is supposed to be located in the
It is like that.

  According to the above solution, the long drop-off prevention piece can be smoothly inserted into the drop-off prevention hole without receiving a large resistance through the upper opening of the drop-off prevention hole and buckled during the insertion work. It is possible to prevent the design panel from falling off after assembling. Further, when the design panel is assembled, the drop-off prevention piece portion is moved from the upper opening portion to the lower opening portion with respect to the movement in the direction in which the locking claw portion is locked (inserted) into the locking hole. Only a slight downward movement is required, and the design panel can be easily assembled together with the fact that the drop-off prevention piece can be smoothly inserted into the drop-off prevention hole.

  A preferred mode based on the above solution is as described in claim 2 and the following.

In a state where the locking projection is at the height position of the upper opening, the locking claw is positioned above the locking hole,
As at least one of the locking claw and the locking hole is inserted into the locking hole from a state where the locking claw is positioned above the locking hole, the locking claw is A guide portion is formed for guiding so as to be displaced downward.
(Corresponding to claim 2). In this case, in the process of inserting the locking claw portion into the locking hole, the movement of the drop-off prevention piece portion moving toward the lower opening portion can be automatically obtained, and the design panel can be easily assembled. Can be done.

A holding hole is formed in the vehicle body side panel,
On the back side of the design panel, a holding projection for projecting the weight of the design panel to the vehicle body side panel when inserted into the holding hole is formed to protrude,
With the locking claw portion inserted into the locking hole and locked, the holding projection is inserted into the holding hole.
(Corresponding to claim 3). In this case, it is preferable when the design panel is firmly supported on the vehicle body side panel.

In the state where the locking projection is at the height position of the upper opening, the holding projection is positioned above the holding hole,
As the holding protrusion is inserted into the holding hole from at least one of the holding protrusion and the holding hole, the holding protrusion is directed downward. A guide portion is formed for guiding so as to be displaced.
(Corresponding to claim 4). In this case, in the process of inserting the holding protrusion into the holding hole, the movement of the drop-off prevention piece portion moving toward the lower opening can be automatically obtained, so that the design panel can be assembled more easily. It can be carried out.

  On the vehicle body side panel, a bulging portion on which the right and left ends of the locking projection can be placed in a state where the locking projection is brought close to the upper opening at the height position of the upper opening. It is formed (corresponding to claim 5). In this case, it is possible to insert the drop-off prevention piece into the upper opening in a stable state in which the locking protrusions constituting the tip of the long drop-off prevention piece are placed on the placement part. And can be assembled more easily.

  The locking protrusion has a shape having a wide part extending to the left side and the right side of the extension part, and a rear extension part extending rearward from the left and right ends of the wide part. (Corresponding to claim 6). In this case, the rear extension is easily caught on the peripheral edge of the lower opening, which is preferable for more reliably preventing the design panel from falling off.

  The drop-off prevention piece is provided at a position overlapping the front passenger seat airbag in the front-rear direction in plan view (corresponding to claim 7). In this case, it is preferable to prevent the design panel from falling off by providing the drop-off preventing piece at a position where the airbag device is susceptible to a large impact when the airbag device is activated.

  According to the present invention, it is possible to easily assemble the design panel while reliably preventing the design panel locked to the vehicle body side panel from falling off.

The principal part perspective view which shows an example of the instrument panel structure to which this invention was applied. Side surface sectional drawing in the airbag part for passenger seats. The perspective view which shows the back surface side of a design panel. The principal part plane sectional view which shows the assembly | attachment state of the design panel with respect to a vehicle body side panel. The perspective view which shows a drop-off prevention hole. The perspective view which shows the detail of a drop-off prevention piece part. Side surface sectional drawing which shows the state immediately after inserting a drop-off prevention piece part in the upper opening part of a drop-off prevention hole, and shows the state in the process of mounting the design panel. FIG. 8 is a side sectional view showing the relationship between the holding projection and the holding hole in a state corresponding to FIG. 7. FIG. 8 is a side sectional view showing the relationship between the locking projection and the locking hole in a state corresponding to FIG. 7. FIG. 8 is a side cross-sectional view corresponding to FIG. 7, showing a state where the design panel is completely attached. FIG. 9 is a side sectional view corresponding to FIG. 8, showing a state where the design panel is completely attached. FIG. 10 is a side sectional view corresponding to FIG. 9, showing a state where the design panel is completely attached.

  In FIG. 1, the instrument panel 1 includes a vehicle body side panel 10 and a design panel 20 locked to the vehicle body side panel 10.

  In the embodiment, the vehicle body side panel 10 includes a rigid synthetic resin frame panel 11 and a synthetic resin covering material 12 covering the surface of the frame panel 11. 11 also has a panel material 13 made of synthetic resin firmly fixed to 11. The frame panel 11 is fixed to a steering support member 30 as a frame strength member extending in the vehicle width direction (see FIG. 4).

  As shown in FIGS. 2 and 4, a passenger seat airbag device 40 is disposed in the internal space of the vehicle body side panel 10. The airbag device 40 is fixed to the steering support member 30 via a bracket 31. The airbag device 40 includes a case 41, an inflator 42, and an airbag 43 (shown simply by a broken line in FIG. 2) stored in a folded state in the case 41.

  The design panel 20 is formed to extend long in the vehicle width direction at a position corresponding to the passenger seat in the vehicle body side panel 10. When the airbag device 40 is activated, the airbag 43 is inflated and deployed forward of the passenger seat by breaking the upper portion of the instrument panel 1 on the passenger seat side. The design panel 20 is easily detached from the vehicle body side panel 10 due to the impact at this time. In particular, since the capacity of the airbag device 40 tends to be increased from the viewpoint of improving collision safety, the design panel 20 is easily detached from the vehicle body side panel 10 when the airbag device 40 is operated. . As will be described later, the design panel 20 is prevented from falling off the vehicle body side panel 10 when the airbag device 40 is operated.

  Next, the attachment structure with respect to the vehicle body side panel 10 of the design panel 20 is demonstrated. First, on the back surface side of the design panel 20, a plurality of locking claw portions 21, a plurality of holding projection portions 22, and a plurality of dropout prevention piece portions 23 are formed to protrude at intervals in the vehicle width direction. Has been. The protruding length of the drop-off preventing piece 23 is sufficiently larger than the protruding length of the locking claw 21 and the holding projection 22.

  As shown in FIGS. 9 and 12, the locking claw portion 21 has a tip portion tapered and expanded in the vertical direction. In particular, the upper surface of the distal end portion of the locking claw portion 21 is a guide surface 21a that is inclined so as to gradually become lower toward the distal end. The base end portion of the latching claw portion 21 has a rib structure to ensure rigidity. Such a locking claw portion 21 can be integrally formed with the design panel 20, but can also be configured such that only the tip portion is formed of a separate member and integrated with the design panel 20.

  The holding projection 22 is configured to support the weight of the design panel 20 on the vehicle body side panel 10 side, and is formed as a highly rigid shape such as a rib having an H-shaped cross section. The upper surface of the tip of the holding projection 22 is a guide surface 22a that is inclined so as to gradually become lower toward the tip.

  The drop-off prevention piece portion 23 has a long and narrow plate-like extension portion 24 and a wide locking projection portion 25 formed at the distal end portion of the extension portion 24. The locking projection 25 includes a wide portion 25a that protrudes to the left and right sides of the extended portion 24, and a rear extension 25b that extends rearward from the left and right ends of the wide portion 25a. It is formed in a substantially bowl shape. In the embodiment, such a drop-off preventing piece 23 is formed separately from the design panel 20 and is fixed to the design panel 20 (of which a boss-like protrusion is formed) by a screw 26 (FIG. 2). (See FIGS. 7 and 10). Note that the drop-off preventing piece 23 can be integrally formed with the design panel 20.

  The vehicle body side panel 10 is formed with a locking hole 15 corresponding to the locking claw portion 21, a holding hole 16 is formed corresponding to the holding projection 22, and is dropped corresponding to the falling prevention piece portion 23. A prevention hole 17 is formed. More specifically, the locking hole 15 and the holding hole 16 are formed in the frame panel 11, and the dropout prevention hole 17 is formed in the panel material 13.

  The drop-off prevention hole 17 has a wide upper opening 17a at the top and a narrow lower opening 17b at the bottom. That is, the lower opening 17b is positioned in communication with the center of the lower edge of the upper opening 17a. Each of the openings 17a and 17b has a substantially rectangular shape.

  Of the peripheral edge of the drop-off prevention hole 17, the left and right edges of the lower opening 17cb are provided with a mounting portion 17c bulging rearward (toward the passenger seat) (see FIG. 5). . The upper surface of the mounting portion 17c is a flat surface and is set to have a height at a lower end position of the upper opening portion 17a (a height at an upper end position of the lower opening portion 17b).

  The left-right width and thickness of the extending portion 24 in the drop-off preventing piece portion 23 are set so that both the upper opening portion 17a and the lower opening portion 17b can be inserted. On the other hand, the lateral width and thickness of the locking projection 25 in the drop-off preventing piece 23 are set so that the upper opening 17a can be smoothly inserted, but the lower opening 17b cannot be inserted.

  Next, a procedure for attaching the design panel 20 to the vehicle body side panel 10 will be described. First, the drop-off prevention piece 23 is positioned in the immediate vicinity of the drop-off prevention hole 17 at the height position of the upper opening 17a, and the locking projection 25 is placed on the placement portion 17c. From this state, the design panel 20 is displaced forward, and the locking projection 25 of the drop-off preventing piece 23 is inserted through the upper opening 17a.

  FIG. 7 shows a state immediately after the locking projection 25 passes through the upper opening 17a. At this time, the holding projection 22 is positioned on the upper side of the holding hole 16 (see FIG. 8). Moreover, the latching claw part 21 is located in the upper part in the immediate vicinity of the latching hole 15 (refer FIG. 9).

  When the design panel 20 is further displaced forward from the state shown in FIGS. 7 to 9, the design panel 20 is displaced forward by the action of the guide surface 22 a of the holding projection 22 and the guide surface 21 a of the locking claw 21. Accordingly, while the design panel is displaced downward, the holding projection 22 is fitted into the holding hole 16 (see FIG. 11), and the locking claw portion 21 is locked into the locking hole 15 (see FIG. 12). The drop prevention piece 23 is inserted deeply into the drop prevention hole 17 (see FIG. 10).

  Note that the upper surface 15a of the locking hole 15 and the upper surface 16a of the holding hole 16 are inclined so as to be gradually positioned downward as they go forward, so as to promote the guide function of the guide surfaces 21a and 22a. is there. In addition to or instead of forming the guide surface on the locking claw portion 21 or the holding projection 22, the upper surface of the locking hole 15 or the holding hole 16 can be positively configured as a guide surface ( In this case, the longitudinal length of at least the upper surface of the locking hole 15 and the holding hole 16 is set to be long).

  In a state where the locking claw portion 21 is locked in the locking hole 15, the drop-off preventing piece portion 23 is in a state where the extended portion 24 is inserted into the lower opening 17b (from the state of FIG. 7 to FIG. 10). The state in which the locking protrusion 25 is located deeply below the drop-off prevention hole 23 (the locking action by the locking protrusion 25 is not exerted). State).

  The state shown in FIGS. 10 to 12 is a state where the attachment of the design panel 20 to the vehicle body side panel 10 is completed. 10 to 12, the upper edge portion of the design panel 20 is inserted into the storage recess 13a formed in the panel member 13 and extending in the vehicle width direction, and the design panel 20 The parting line portion between the vehicle body side panel 10 is set so that it looks good.

  When the design of the design panel 20 is completed, the locking claw portion 21 is pulled out of the locking hole 15 and the holding projection 22 is pulled out of the holding hole 16 due to an impact when the airbag device 40 is operated. Is assumed. At this time, the locking projection 25 in the drop-off prevention piece 23 is locked to the peripheral edge of the lower opening 17b, and the design panel 20 is prevented from falling off the vehicle body side panel 10. Particularly, the design panel 20 is prevented from falling off by providing the drop-off prevention piece 23 (drop-off prevention hole 7) at a position overlapping the airbag device 40 in the front-rear direction in a plan view as shown in FIG. Is more preferable. Further, since the locking projection 25 of the drop-off preventing piece 23 has a pair of left and right rear extension portions 25b, the rear extension portion 25b can be reliably locked to the peripheral edge portion of the lower opening portion 17b, and the design panel This is even more preferable for preventing 20 from falling off.

  As described above, when the fall prevention piece 23 is inserted into the fall prevention hole 17, the fall prevention piece 23 is not subjected to an excessive external force for insertion, and the fall prevention piece 23 is buckled. And can be inserted without causing damage. Further, the design panel 20 can be attached to the vehicle body side panel 10 only by being displaced slightly downward from the height position of the upper opening 17a to the height position of the lower opening 17b. As a result, it is possible to improve the installation workability. In particular, by forming the guide surfaces 21a and 22a, when the design panel 20 is displaced forward, the design panel 20 is automatically displaced downward, and the drop-off preventing piece 23 is inserted through the lower opening 17b. It can be automatically changed to a state, and the assembly workability is further improved.

  Since the locking claw portion 21 is longer than the holding projection portion 22 in the dropout prevention piece portion 23, it is easy to visually confirm the position of the tip portion of the dropout prevention piece portion 23. It is easy to position the portion (the locking projection 25) in the upper opening 17a. In particular, by providing the mounting surface 17c, the locking protrusion 25 of the drop-off prevention piece 23 is placed on the placement surface 17c, and the drop-off prevention piece 23 is placed in the drop-off prevention hole 17 in a stable state. Can be inserted. In addition, with the locking projection 25 of the drop-off prevention piece 23 placed on the mounting surface 17c, the locking claw 21 is positioned with respect to the locking hole 15 and the holding projection 22 is positioned with respect to the holding hole 16. Can be performed almost completely, and the assembly workability is also improved in this respect.

  By forming the locking hole 15 and the holding hole 16 in the frame panel 11 having excellent rigidity, it is preferable for firmly attaching the design panel 20 to the vehicle body side panel 10. Further, by forming the drop-off prevention hole 17 in the panel material 13 made of synthetic resin, it is preferable to bulge and form the mounting portion 17 c in relation to the drop-off prevention hole 17.

  Although the embodiments have been described above, the present invention is not limited to the embodiments, and appropriate modifications can be made within the scope of the claims. The locking hole 15 and the holding hole 16 can also be formed in the panel material 13. The dropout prevention hole 17 can also be formed in the frame panel 11. A shape corresponding to the holding projection 22 may be formed in the locking claw 21 (attachment seat thereof), and the holding hole 16 and the locking hole 15 may be made common. The holding protrusions 22 (holding holes 16) may not be provided. Of course, the object of the present invention is not limited to what is explicitly stated, but also implicitly includes providing what is substantially preferred or expressed as an advantage.

  The present invention can provide a suitable instrument panel structure in a vehicle.

DESCRIPTION OF SYMBOLS 1: Instrument panel 10: Car body side panel 11: Frame panel 13: Panel material 15: Locking hole 16: Holding hole 17: Fall-off prevention hole 17a: Upper opening part 17b: Lower opening part 17c: Mounting part 20: Design Panel 21: Locking claw part 22: Holding projection part 23: Drop-off prevention piece part 24: Extension part 25: Locking protrusion part 25a: Wide part 25b: Rear extension part 30: Steering support member 40: Airbag device

Claims (7)

An instrument panel structure in which a passenger seat airbag is disposed in the interior space of the vehicle body side panel, and a design panel is locked to the surface of the passenger seat side of the vehicle body side panel,
A locking hole and a drop-off preventing hole are provided on a surface on the passenger seat side of the vehicle body side panel, a locking claw portion that is locked to the locking hole on the back side of the design panel, and the locking claw A drop-off prevention piece portion that is longer than the portion and locked in the drop-off prevention hole is formed to protrude,
The dropout prevention hole has a shape having an upper opening and a lower opening that is connected to the lower edge of the upper opening and is narrower than the upper opening.
The drop-off preventing piece has an extended portion and a locking projection formed at the tip of the extended portion,
The extending portion is set to be narrow enough to be inserted through the upper opening and the lower opening,
The locking protrusion is set to be wide enough to be inserted through the upper opening but not through the lower opening,
In the locked state in which the locking claw is inserted into the locking hole, the extended portion is inserted into the lower opening, and the locking protrusion is further on the back side than the lower opening. It is supposed to be located in the
Instrument panel structure characterized by that. In claim 1,
In a state where the locking projection is at the height position of the upper opening, the locking claw is positioned above the locking hole,
As at least one of the locking claw and the locking hole is inserted into the locking hole from a state where the locking claw is positioned above the locking hole, the locking claw is A guide portion is formed for guiding so as to be displaced downward.
Instrument panel structure characterized by that. In claim 1 or claim 2,
A holding hole is formed in the vehicle body side panel,
On the back side of the design panel, a holding projection for projecting the weight of the design panel to the vehicle body side panel when inserted into the holding hole is formed to protrude,
With the locking claw portion inserted into the locking hole and locked, the holding projection is inserted into the holding hole.
Instrument panel structure characterized by that. In claim 3,
In the state where the locking projection is at the height position of the upper opening, the holding projection is positioned above the holding hole,
As the holding protrusion is inserted into the holding hole from at least one of the holding protrusion and the holding hole, the holding protrusion is directed downward. A guide portion is formed for guiding so as to be displaced.
Instrument panel structure characterized by that. In any one of Claims 1 thru | or 4,
On the vehicle body side panel, a bulging portion on which the right and left ends of the locking projection can be placed in a state where the locking projection is brought close to the upper opening at the height position of the upper opening. An instrument panel structure characterized by being formed. In any one of Claims 1 thru | or 5,
The locking protrusion has a shape having a wide part extending to the left side and the right side of the extension part, and a rear extension part extending rearward from the left and right ends of the wide part. Instrument panel structure characterized by In any one of Claims 1 thru | or 6,
The instrument panel structure according to claim 1, wherein the drop-off preventing piece is provided at a position overlapping with the front passenger airbag in the front-rear direction in plan view.

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