JP4029277B2 - Door support member mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door support member mounting structure, and more specifically, when a door support member is attached to the back side of a door peripheral part adjacent to the periphery of an airbag door provided on a vehicle interior member, the back side of the door peripheral part This relates to a door support member mounting structure configured to engage a first mounting portion provided on the second mounting portion and a second mounting portion provided at a required position of the door support member.
[0002]
[Prior art]
Most passenger cars are equipped with a driver's seat airbag device and a passenger's seat airbag device as standard in order to protect passengers from impacts caused by a collision accident or the like. The driver's seat airbag device is generally installed in a state where it is stored in a horn pad portion of a steering wheel, and the passenger's seat airbag device is installed in the front of a passenger compartment as shown in FIG. 7, for example. It is mounted in a state of being stored inside an instrument panel 10 as an interior member. For this reason, the panel base member 12 constituting the instrument panel 10 has an airbag door 14 that opens to the passenger compartment when it receives a pressing force of the airbag 24 that has started to expand due to the operation of the airbag device 20. However, it is provided in the part corresponding to the opening part of case 22 in this airbag apparatus 20, and an airbag insertion port is defined as a result of this airbag door 14 opening.
[0003]
Here, the conventional airbag door 14 has been mainly formed in a form that is formed separately from the panel base material 12 and assembled to the panel base material 12. As described above, the panel base material 12 is integrally formed, and the design surface is constantly being formed as a part of the base material 12. In the airbag door 14 of the latter type, a planned tear line 16 is formed along the outer edge line of the door 14, and when the pressing force of the airbag 24 is applied, the planned tear line 16 is formed. By being broken, separation from the panel base material 12 and opening to the passenger compartment are allowed. In addition, as an opening mode of the airbag door 14, in addition to the double-opening type (as illustrated in FIG. 7) constituted by two doors, a single-opening type (not shown) consisting of one door, There is a four-way opening type (not shown) composed of four doors.
[0004]
Here, the panel base 12 provided integrally with the airbag door 14 is generally formed from a relatively hard resin material obtained by adding a reinforcing material such as mica to a material such as polypropylene (PP). Therefore, particularly when a strong pressing force of the airbag 24 is momentarily received at a low temperature (below zero degrees), the impact causes the airbag door 14 and / or the door peripheral portion 18 adjacent to the periphery thereof. There is a risk of damage. For this reason, for example, one end side of the airbag door 20 is connected to the rear side of the airbag door 14 and the rear side of the door peripheral portion 18 for the purpose of preventing the airbag door 14 and the door peripheral portion 18 from being damaged. The other end side of the door support member 30 is attached.
[0005]
The door support member 30 is preferably made of a metal having rigidity shown in FIGS. 7 and 8, and one end side of the door support member 30 is connected to the case 22 of the airbag device 20 and the door peripheral portion 18 is used. A fixed bracket 32 having a rectangular tube shape, the other end of which is attached to the back side of the airbag, and movable brackets 34 and 34 provided inside the opening of the fixed bracket 32 and connected to the back sides of the airbag doors 14 and 14, respectively. It is configured (in the case of double opening type shown in the figure). The fixed bracket 32 is formed of a cylindrical body portion 36 connected to the case 22, and a mounting frame portion 38 that is integrally formed with the end portion of the cylindrical body portion 36 and connected to the back side of the door peripheral portion 18. ing. The movable brackets 34 and 34 correspond to the airbag doors 14 and 14, respectively. A support panel 40 welded or screwed to the cylindrical body portion 36 of the fixed bracket 32, and the support panel 40 The reinforcing panel 42 is attached to the back surface of the corresponding airbag door 14 and 14 by being joined by the hinge portion 44.
[0006]
Here, the mounting frame portion 38 of the fixed bracket 32 and the reinforcing panel 42 of each of the movable brackets 34 and 34 use a heat caulking technique that is a known technique for the door peripheral portion 18 and the back side of the airbag doors 14 and 14. Are connected based on the mounting structure. Specifically, as shown in FIG. 9 and FIG. 10A, the first mounting portion is formed at the same time as the panel base 12 on the back side of the door peripheral portion 18 and the airbag doors 14, 14 at the time of molding. A plurality of base material engaging protrusions 50 and door engaging protrusions 54 are provided at a required height. Further, in the door support member 30, a base material engagement hole 52 into which the base material engagement protrusion 50 can be correspondingly inserted is provided in the attachment frame portion 38 of the fixed bracket 32 as a second attachment portion. A door engagement hole 56 through which the door engagement protrusion 54 can be inserted correspondingly is formed in the reinforcing panel 42 of each movable bracket 34, 34.
[0007]
When the door support member 30 is attached to the back side of the airbag doors 14 and 14 and the door peripheral portion 18, the door support member 30 is first positioned on the back side of the panel base 12 as shown in FIG. Originally, the corresponding base material engaging protrusions 50 are inserted into the base material engaging holes 52 formed in the fixed bracket 32, and the door engagements formed in the respective movable brackets 34 and 34. The corresponding door engaging protrusion 54 is inserted into the hole 56 (FIG. 10A). Then, the caulking tool (forming tool) 26 (26A, 26B, 26C, 26D) in the caulking machine is brought close to the respective base material engaging protrusions 50 and the respective door engaging protrusions 54, and the base material The front end protruding portion of the base material engaging protrusion 50 protruding from the joint hole 52 and the front end protruding portion of the door engaging protrusion 54 protruding from the door engagement hole 56 are respectively connected to the caulking tools 26A, 26B, 26C, and 26D. Crushing while heating at the tip pressing surface (FIG. 10B). As a result, the fixing bracket 32 causes the mounting frame portion 38 to be a door by the widening engaging portion 58 in which the tip protruding portion of each base material engaging protrusion 50 inserted correspondingly to each base material engaging hole 52 is deformed. The movable brackets 34 and 34 are attached to the back side of the peripheral portion 18 in a state of being engaged (heat crimped), and the movable brackets 34 and 34 are inserted into the door engagement holes 56 correspondingly. The reinforcing panels 42 and 42 are attached to the back sides of the corresponding airbag doors 14 and 14 in a state of being engaged (heat-caulked) by the widened engaging portion 60 whose projecting portion is deformed (FIG. 10C).
[0008]
Accordingly, the airbag doors 14 and 14 are supported from the back side by the reinforcing panels 42 and 42 of the movable bracket 34, and the door peripheral portion 18 is supported from the back side by the mounting frame portion 38 of the fixed bracket 32. Thereby, in the stage before the opening of the airbag door 14 where the pressing force of the inflating airbag 24 starts to act on the back side, the door peripheral portion 18 is prevented from rising, so that the fracture at the planned tear line 16 occurs. Can be reliably caused, and deformation of the panel base 12 due to the floating of the door peripheral portion 18, breakage of the panel base 12 due to this, and the like can be prevented. On the other hand, when the airbag doors 14 and 14 that are broken and separated from the panel base material 12 collide with the front side of the door peripheral portion 18, the airbag doors 14 and the door peripheral portion 18 of the airbag peripheral portion 18 are associated with the impact. Damage can be prevented.
[0009]
[Problems to be solved by the invention]
Incidentally, the instrument panel 10 has a bucket shape extending from the vicinity of the lower end of the windshield 28 to the front side of a passenger seat (not shown), as is apparent from FIGS. For this reason, when the door support member 30 is attached to the back side of the panel base member 12, the base member engaging protrusion 50 located on the passenger seat side among the base member engaging protrusions 50 to which the fixing bracket 32 is particularly attached. (50A) comes to be located in a part deeper than the cylindrical part 36 of the fixed bracket 32. Therefore, the caulking tool 26D that attempts to enter the space 19 defined between the fixing bracket 32 and the panel base material 12 in order to thermally caulk the base material engaging protrusion 50A is provided on the panel base material 12. The situation which interferes with the lower end edge 12a of No., etc. occurred. In such a case, since the heat caulking work of the base material engaging protrusion 50A by the caulking tool 26D is impossible, the heat caulking work (deformation work) of the base material engaging protrusion 50A is manually performed by an operator. ), And was extremely inefficient.
[0010]
In the case where the caulking of the base material engaging protruding piece 50A is omitted in order to prioritize the efficiency of the mounting work, the airbag door 14 in which the pressing force of the inflating airbag 24 begins to act on the back side. Since the floating of the door peripheral portion 18 cannot be restricted in the stage before opening the door, the reliable and appropriate breaking at the planned opening line 16 is not caused, and the smooth opening of the airbag doors 14 and 14 is hindered. There is a jealousy. Moreover, since the panel base material 12 will be partially deformed when the door peripheral part 18 is lifted, the panel base material 12 may be damaged due to this.
[0011]
OBJECT OF THE INVENTION
  The present invention has been proposed to suitably solve the above-described problems. When the door support member is attached to the back side of the airbag door provided on the vehicle interior member and the door peripheral portion, the present invention is provided.The second1 mounting part and 2nd mounting partPart ofIt is an object of the present invention to provide a door support member mounting structure that can be made efficient and rationalized by being engaged without post-processing.
[0012]
[Means for Solving the Problems]
  In order to solve the above-mentioned problems and achieve an intended object, the present invention provides a door peripheral member mounted on the back side of a door peripheral member adjacent to the periphery of an airbag door provided on a vehicle interior member. In the door support member mounting structure configured to engage the first mounting portion provided on the back side and the second mounting portion provided at a required position of the door support member,
  The first mounting portion;
  Protruding on the back side of the peripheral part of the door,When the door support member is set on the back side of the door peripheral portion, the latch that forms a part of the corresponding second mounting portionInserted into the hole and engaged with the door support memberCan stopHook-shaped protrusionWhen,
  Protruding on the back side of the peripheral part of the door,After the door support member is set on the back side of the door peripheral part, the attachment that forms a part of the corresponding second mounting portionRib-shaped projecting piece that can be engaged with the door support member by deforming the tip protruding portion when inserted through the holeIt is characterized by comprising.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, a door reinforcing member mounting structure according to the present invention will be described below with reference to the accompanying drawings by way of a preferred embodiment. Note that the same reference numerals are used to indicate the same members and parts as those already described in the section of the prior art described with reference to FIGS.
[0014]
FIG. 1 is a schematic sectional view of an instrument panel showing a door support member mounting structure according to a preferred embodiment of the present invention, and FIG. 2 is a partially enlarged sectional view of FIG. The instrument panel 10 of the example is basically the same as that illustrated in FIG. 7 and is injection-molded from a relatively hard resin material in which a reinforcing material such as mica is added to a material such as polypropylene (PP). The panel base 12 is a single-layer type, and the airbag doors 14 and 14 are integrally provided by forming a planned tear line 16 at a required position (front of the passenger seat) of the panel base 12. It has been. And on the back side of the panel base material 12, a predetermined number of door engaging protrusions 54 are provided integrally with the doors 14 and 14 on the back side of the airbag doors 14 and 14, and around the door. On the back side of the portion 18, a predetermined number of base material engaging protrusions 50 serving as a first mounting portion are integrally protruded from the door peripheral portion 18.
[0015]
As the door support member 30 implemented in the mounting structure of the present embodiment, the conventional one illustrated in FIGS. 8 and 9 is used as it is, and one end side of the door support member 30 is connected to the case 22 of the airbag device 20 and the door is used. A rectangular bracket-like fixed bracket 32 whose other end is connected to the back side of the peripheral portion 18, and a movable bracket 34 provided inside the opening of the fixed bracket 32 and connected to the back side of the airbag doors 14, 14. , 34. The fixing bracket 32 is formed of a cylindrical body portion 36 connected to the case 22 and a mounting frame portion 38 that is integrally formed with the end portion of the cylindrical body portion 36 and connected to the back side of the door peripheral portion 18. Has been. Each of the movable brackets 34, 34 is welded or screwed to the inner surface of the cylindrical portion 36 of the fixed bracket 32, and the corresponding airbag door 14 is joined to the support panel 40 by a hinge portion 44. , 14 and the reinforcing panel 42 connected to the back surface. Here, a predetermined number of door engagement holes 56 corresponding to the respective door engagement protrusions 54 are formed in the reinforcing panel 42 of each movable bracket 34, 34, and the fixing bracket 32 is attached. A predetermined number of base material engagement holes 52 serving as second attachment portions corresponding to the respective base material engagement protrusions 50 are formed in the frame portion 38.
[0016]
In the mounting structure of the door support member 30 according to the present embodiment, a base material engaging protrusion (first mounting portion) 50 and a base provided for mounting the fixing bracket 32 on the back side of the door peripheral portion 18 are provided. The engagement mode of the material engagement hole (second attachment portion) 52 is changed from the conventional one. That is, when the door support member 30 is set on the back side of the door peripheral portion 18, the base material engagement projecting piece 50 protruding from the back side of the door peripheral portion 18 An appropriate number of locking protrusions (locking protrusions) 62 that can be locked in a part of the locking hole (locking receiving portion) 64 without post-processing, and the door support member on the back side of the door peripheral portion 18 After setting 30, an appropriate number of engaging protrusions (which can be engaged by applying appropriate post-processing to an engaging hole (engaging receiving portion) 68 forming a part of the corresponding base material engaging hole 52 ( (Engagement protrusion) 66. In other words, the fixing bracket 32 is configured so that the door peripheral portion 18 is engaged by the locking action between the locking protrusions 62 and the corresponding locking holes 64 and the locking action of the locking protrusions 66 and the corresponding locking holes 68. It is designed to be attached to the back side.
[0017]
As shown in FIGS. 2 and 3, the locking protrusion 62 as the locking protrusion is a hook-shaped protrusion protruding at a required position on the back side of the door peripheral portion 18. A locking portion 62a that protrudes toward the windshield side of the panel base 12 is formed with the length of the tip portion set larger than the length of the base portion to be joined. The locking hole 64 as a locking receiving portion is an elongated through hole formed at a required position of the mounting frame portion 38 in the door support member 30 and has a length that allows the locking protrusion 62 to be inserted. Is set to Each of the locking protrusions 62 and the locking holes 64 configured as described above is formed by inserting the locking protrusions 62 into the locking holes 64 correspondingly (FIG. 4A). By displacing the door support member 30 toward the occupant seat side of the material 12, each reliable locking can be achieved (FIG. 4B).
[0018]
The engaging protrusion 66 as the engaging protrusion has the same shape as that of the conventional form shown in FIGS. 9 and 10, and as shown in FIGS. 2 and 3, It is a rib-shaped projecting piece projecting at a required position. Further, the engaging hole 68 as the engaging receiving portion has the same shape as that of the conventional embodiment shown in FIGS. 9 and 10, and is an elongated shape formed at a required position of the mounting frame portion 38 in the door support member 30. It is a through hole. Each of the engaging protrusions 66 and the engaging holes 68 configured in this way is engaged with the engaging protrusions 66 inserted through the engaging holes 68 (FIG. 5A). A widening engaging portion 58 in which the tip protruding portion is deformed by heating and crushing the tip protruding portion of the engaging protruding piece 66 protruding from the hole 68 by the caulking tool (forming tool) 26 (26A). As a result, each reliable engagement is achieved (FIG. 5B).
[0019]
Here, in the door support member mounting structure according to the embodiment, the portion where the locking protrusion 62 and the corresponding locking hole 64 are provided is when the door support member 30 is set on the back side of the door peripheral portion 18. In addition, the deformation work by the caulking tool 26D used for deforming the engaging projection piece 66 is an inefficient or impossible part. That is, as described with reference to FIGS. 7 and 8, the base material engaging protruding piece 50 </ b> A located in a part deeper than the cylindrical body part 36 of the fixing bracket 32 set on the back side of the door peripheral part 18, Since the deformation work (heat caulking) by the caulking tool 26D is an inefficient or impossible portion, the locking protrusion 62 is provided in the portion where the base material engaging protrusion 50A is provided. is there.
[0020]
On the other hand, the door engagement protrusions 54 and the door engagement holes 56 provided for attaching the movable brackets 34, 34 to the back side of the airbag doors 14, 14 are the same as those in the conventional embodiment shown in FIG. It is the same and there is no change. That is, each of the door engagement protrusions 54 and the door engagement holes 56 are arranged in such a manner that the door engagement protrusions 54 are inserted into the door engagement holes 56 correspondingly (FIG. 5A). The front end protruding portion of the door engagement protruding piece 54 protruding from the joint hole 56 is heated and crushed by the caulking tools 26B and 26C, and is heat caulked, whereby each of the wide end engaging portions 60 in which the front end protruding portion is deformed. Secure engagement is achieved (FIG. 5B).
[0021]
Next, a procedure for attaching the door support member 30 to the back side of the airbag doors 14 and 14 and the door peripheral portion 18 based on the door support member mounting structure according to the embodiment configured as described above will be described. 4 and FIG. In the mounting structure of the embodiment, when engaging the base material engaging protrusions 50 and the base material engaging holes 52, first, the respective locking protrusions 62 are correspondingly locked to the locking holes 64, Thereafter, each of the engaging protrusions 66 is engaged with the engaging hole 68 in a corresponding manner, whereby the fixing bracket 32 is securely attached to the back side of the door peripheral portion 18. .
[0022]
First, the door support member 30 is positioned in an appropriate inclined posture on the back side of the airbag doors 14 and 14 provided on the panel base 12 and the door peripheral portion 18 adjacent to the periphery of the doors 14 and 14 (FIG. 4 ( a)). Then, the base material engaging protrusions 50 provided on the back side of the door peripheral portion 18 are provided with the respective locking holes 64 forming a part of the base material engaging hole 52 provided in the fixing bracket 32 of the door support member 30. Each locking protrusion 62 is aligned with each locking protrusion 62 and a corresponding locking hole 64 is inserted.
[0023]
Next, the door support member 30, which has been inclined, is brought into close contact with the airbag doors 14, 14 and the back side of the door peripheral portion 18 while being pushed toward the passenger seat side (right side in the figure) of the panel base 12. (FIG. 4B). At this time, one of the base material engaging protrusions 50 provided on the back side of the door peripheral portion 18 with respect to each engaging hole 68 forming a part of the base material engaging hole 52 provided in the fixing bracket 32. Each engaging protrusion 66 forming a part is inserted correspondingly. On the other hand, in each movable bracket 34, 34, each door engagement protrusion 54 provided on the back side of the airbag door 14, 14 corresponds to each door engagement hole 56 provided in the reinforcing panel 42. Will be inserted through.
[0024]
Accordingly, the movable brackets 34 and 34 and the fixed bracket 32 of the door support member 30 are temporarily set on the back side of the airbag doors 14 and 14 and the door peripheral portion 18, respectively. At this time, each locking projection piece 62 is correspondingly locked to each locking hole 64, and the passenger seat side of the mounting frame portion 38 of the fixed bracket 32 is already on the back side of the door peripheral portion 18. Fixed.
[0025]
When the temporary setting of the door support member 30 with respect to the back side of the airbag doors 14 and 14 and the door peripheral portion 18 is completed, each engagement in the base material engagement projecting piece 50 protruding from the engagement hole 68 in the base material engagement hole 52 is performed. The crimping tools 26A, 26B, and 26C of the crimping machine are correspondingly brought close to the landing protrusions 66 and the respective door engagement protrusions 54 protruding from the door engagement holes 56, and the tip ends of the respective engagement protrusions 66. The protruding portion and the protruding portion at the front end of each door engaging protruding piece 54 are heated and crushed and deformed by heat (FIG. 5A). As a result, in each engagement protrusion 66, the wide engagement portion 58 formed by deforming the tip protruding portion achieves reliable engagement with the corresponding engagement hole 68, and each door engagement protrusion In the piece 54, reliable engagement with the corresponding door engagement hole 56 is achieved by the widening engagement portion 60 formed by deforming the tip protruding portion (FIG. 5B).
[0026]
As described above, in the door support member mounting structure according to the embodiment, the locking action between the locking protrusions 62 and the locking holes 64 that form a part of the base material engagement protrusion 50 and the base material engagement. The fixing bracket 32 is suitably attached to the back side of the door peripheral portion 18 based on the engaging action of the engaging protrusions 66 and the engaging holes 68 forming a part of the protrusion 50. Further, the corresponding movable brackets 34, 34 are suitably attached to the back side of the airbag doors 14, 14 based on the engagement action of each door engagement protrusion 54 and each door engagement hole 56. Therefore, when the fixing bracket 32 is attached to the back side of the door peripheral portion 18, the locking protrusion 62 that forms a part of the base material engaging protrusion 50 forms a part of the base material engaging hole 52 without post-processing. Since it is locked in the locking hole 64, it is possible to improve the efficiency and rationalization of the operation of attaching the door support member 30. In particular, when the door support member 30 is set on the back side of the door peripheral portion 18, deformation work (thermal caulking) by the caulking tool 26 (26 </ b> D) used to deform the engaging protrusion 66 is not performed. Since the locking protrusion 62 is provided at an efficient or impossible location, the efficiency and rationalization of the door support member 30 mounting operation can be greatly increased.
[0027]
In addition, each said locking hole 64 which makes a part of the said base material engaging hole 52 is good also as a slit aspect opened to the edge of the attachment frame part 38 so that it may illustrate in Fig.6 (a), for example. When each locking hole 64 is formed in this way, as shown in FIG. 6B, the airbag doors 14 and 14 provided in the panel base 12 and the door periphery adjacent to the periphery of the doors 14 and 14 are provided. It can be expected that the door support member 30 is easily positioned on the back side of the portion 18 with an appropriate inclination posture.
[0028]
In the door support member mounting structure according to the above-described embodiment, the locking protrusions 62 forming a part of the base material engagement protrusions 50 and the locking holes 64 forming a part of the base material engagement holes 52 are provided. When the door support member 30 is set on the back side of the door peripheral portion 18, the portion to be provided is a portion where at least deformation work (thermal caulking) by the caulking tool 26 is inefficient or impossible. A part of the engaging protrusion piece 66 and a part of the engaging hole 68 provided at a portion where the deformation operation by the tool 26 can be performed are changed to an engaging protrusion piece 62 and an engaging hole 64 in an engaging state. Also good. For example, the engagement projection piece 66 provided in the portion (FIG. 3) located in the left-right direction of the panel base 12 on the back side of the door peripheral member 18 is engaged with the corresponding engagement hole 68. It may be a protruding piece. Thus, since the number of the engaging protrusions 66 is reduced by the increase in the number of the engaging protrusions 62, the number of steps for caulking the engaging protrusions 66 by the caulking tool 26 is reduced, and the airbag door is reduced. 14, 14 and the door support member 30 can be attached to the back side of the door peripheral portion 18 with a significantly improved efficiency and rationalization.
[0029]
Note that the door support member mounting structure that is the subject of the present application is not limited to the door support member that is mounted on the back side of the airbag doors 14 and 14 provided on the instrument panel 10, for example, the side air provided on the door trim. The present invention can also be applied when a door support member attached to the back side of a bag airbag door, a pillar garnish or a curtain airbag airbag door provided on a roof side panel is attached at a predetermined position.
[0030]
【The invention's effect】
  As described above, according to the door support member mounting structure of the present invention, each of the first mounting portions is formed.Hook-shaped protrusionAnd each lock that forms part of the second mounting partHoleEach of which forms a part of the first mounting portionRib-shaped protrusionAnd a part of the second mounting portionHoleThe door support member can be suitably attached to the back side of the door peripheral portion. Therefore, when the door support member is attached to the back side of the door peripheral part, it forms a part of the first mounting portion.Hook-shaped protrusionSince it is locked in the locking hole that forms a part of the second mounting portion without post-processing, there is a beneficial effect that the number of deformation work steps can be reduced, and the efficiency and rationalization of the mounting work of the door support member can be achieved. .
  In particular, when the door support member is set on the back side of the door peripheral portion,Facing the space surrounded by the panel base material of the vehicle interior member that curves to the back side and the cylindrical part protruding to the back side of the door support memberSaid partHook-shaped protrusionIf it is provided, the efficiency and rationalization of the mounting operation of the door support member can be achieved.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of an instrument panel showing a connection structure of door support members according to a preferred embodiment of the present invention.
FIG. 2 is a partially enlarged cross-sectional view of FIG.
FIG. 3 is a schematic perspective view showing a state in which a door support member is attached to the back side of an airbag door and a door peripheral portion provided on the instrument panel based on the mounting structure of the embodiment.
FIG. 4 is an explanatory cross-sectional view showing a process of attaching the door support member to the back side of the airbag door and the peripheral portion of the door, wherein (a) is one of the base material engagement holes provided in the fixing bracket of the door support member. Each of the locking holes forming a portion shows a state in which the locking protrusions forming a part of the base material engaging protrusions provided on the back side of the peripheral portion of the door are correspondingly inserted, and (b) is an airbag By setting the door support member on the back side of the door and the peripheral part of the door, each engaging protrusion that forms part of the base material engaging protrusion corresponds to each engaging hole that forms part of the base material engaging hole The door engagement protrusion corresponding to each door engagement hole is inserted correspondingly.
FIG. 5 is an explanatory cross-sectional view showing a process of attaching the door support member to the back side of the airbag door and the peripheral portion of the door, wherein (a) shows a caulking tool applied to each engaging protrusion and each door engaging protrusion. FIG. 4B shows a state in which the engaging projection pieces and the door engagement projection pieces are thermally crimped by the caulking tool.
FIG. 6A is a schematic perspective view showing a state in which a door support member provided with another type of locking hole opened at the edge of the support frame is attached to the back side of the airbag door and the door peripheral portion. It is a figure, (b) is the schematic sectional drawing which showed the state which attaches the door support member provided with the latching hole of another form shown in (a) to the back side of an airbag door and a door periphery site | part.
FIG. 7 is a schematic cross-sectional view of an instrument panel showing a conventional door support member connection structure.
FIG. 8 is a schematic perspective view showing the instrument panel with the door support member attached to the back side of the airbag door and the door peripheral part, partially broken and partially omitted.
FIG. 9 is a schematic perspective view showing a state in which a door support member is attached on the back side of an airbag door and a door peripheral portion provided on an instrument panel based on a conventional mounting structure.
FIG. 10 is an explanatory cross-sectional view showing the process of attaching the door support member to the back side of the airbag door and the door peripheral portion over time, wherein (a) shows the base material engaging protrusion and the door engaging protrusion; A state in which the base material engaging hole and the door engaging hole are inserted is shown, (b) is a base material engaging protrusion and a door engaging protrusion that are inserted correspondingly to the base material engaging hole and the door engaging hole. FIG. 6C shows a state in which the caulking tool is brought close to each other, and FIG. 5C shows a state in which each base material engaging protrusion and door engaging protrusion are caulked by the caulking tool.
[Explanation of symbols]
  10 Instrument panel (vehicle interior parts)
  11 Panel base material
  14 Airbag door
  18 Door area
  19 space
  30 Door support member
  36 Tube body
  50 Base material engagement protrusion (first mounting part)
  52 Base material engagement hole (second mounting part)
  62 Locking protrusion (Hook-shaped protrusion)
  64 LockingHole
  66 Engagement protrusion (Rib-shaped protrusion)
  68 mooringHole

Claims (5)

When attaching the door support member (30) to the back side of the door peripheral part (18) adjacent to the periphery of the airbag door (14, 14) provided on the vehicle interior member (10), the back side of the door peripheral part (18) In the door support member mounting structure configured to engage the first mounting portion (50) provided on the second mounting portion (52) provided at a required position of the door support member (30),
The first mounting portion (50)
When the door support member (30) is set on the back side of the door peripheral part (18) and protrudes on the back side of the door peripheral part (18), a part of the corresponding second mounting portion (52) is attached. eggplant locking hole (64) to be inserted hook-like protrusion which can engaged with the door support member (30) (62),
Projecting from the back side of the door surrounding site (18), after setting the door support member (30) on the back of the door near the site (18), forming part of the second mounting portion of the corresponding (52) the door support member, characterized by being configured from a rib-like protrusion by deforming the tip projecting portion when was inserted into the engaging hole (68) capable of engaged with the door support member (30) (66) Mounting structure. When the door support member (30) is set on the back side of the door peripheral portion (18), the bowl-shaped projecting piece (62) is curved on the back side of the panel base member (12 ) of the vehicle interior member (10). ) and mounting structure according to claim 1, wherein the door support member provided with a portion facing the space (19) surrounded by the cylindrical portion that protrudes on the back side (36) of the door support member (30). The hook-shaped protrusion (62) of the locking hole (64) to correspondingly inserted to the door support member (30) to the locked so the rib-like protrusion (66) from the engagement wearing holes (68 ) to be to engaged with the door support member in response to insertion (30), according to claim 1 or 2 wherein the mounting of the door support member relative to the back side of the door surrounding site (18) (30) is made Door support member mounting structure. The locking hole (64) The door support member (30) The door support member mounting structure according to any one of claims 1 to 3, wherein the door support member attachment structure is an elongated through-hole formed in the door. The locking hole (64) The door support member (30) The door support member mounting structure according to any one of claims 1 to 3, wherein the door support member is a slit opened at an edge of the door support member.

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