JP3653844B2 - Shock absorption pad mounting structure for automobiles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an impact-absorbing pad mounting structure for an automobile, and more particularly, to a structure that can be mounted with stability while ensuring the impact-absorbing function of the pad.
[0002]
[Prior art]
Recently, in order to enhance the protection of passengers at the time of a side collision when a vehicle collides from the side of an automobile, a technique of providing an impact bar in a side door and an impact absorbing pad such as a synthetic resin foam is being adopted. The shock absorbing pad is usually disposed at a height position corresponding to the occupant's waist. If this pad is not provided, the outer panel collapses during a severe side impact and reaches the inner panel via the parts installed in the door, and the inner panel collides with a passenger in the vehicle compartment via the door trim at the next moment. Therefore, the impact force on the occupant acts with a delay.
On the other hand, in the case of providing a pad, the pad pressed by the outer panel at the time of a side collision is an opening opened in the inner panel, and the door trim as described above. The occupant is pressed at an early stage before coming into contact with the inner panel. That is, the collision load is transmitted to the occupant at an early stage, and the impact load is sufficiently absorbed by the pad, so that the impact force acting on the occupant is remarkably reduced.
[0003]
Therefore, the mounting structure for mounting the shock absorbing pad must have a stable support function that prevents the pad from falling off due to body vibration and the like, and a function that allows the pad to move relative to the panel member of the side door during a side collision. It is. That is, as described above, it is necessary to move the pad to the vehicle compartment side relative to the door panel member, particularly the inner panel, in order to sufficiently exert the shock absorbing function by the pad.
For example, Japanese Patent Laid-Open No. 6-270681 discloses an attachment structure for attaching a pad via a holding member that holds both front and rear side surfaces and an upper surface portion of the shock absorbing pad, and both front and rear side surfaces and left and right side surfaces of the shock absorbing pad. An attachment structure for attaching a pad via a holding member that holds the pad, an attachment structure for attaching a pad via a cap-like holding member externally fitted to the top of the shock absorbing pad, and the like are described.
[0004]
[Problems to be solved by the invention]
In the conventional pad mounting structure and the pad mounting structure disclosed in the above publication, the holding member is large and heavy, and is disadvantageous in terms of manufacturing cost. There is a problem that it is difficult to move relative to the member. In particular, the conventional mounting structure employs a structure in which the outer surface of the pad is supported by a holding member, so that the pad can be strongly held with a small and simple holding member that easily deforms with a small load. Was impossible at all.
The object of the present invention is to reduce the size of the holding member and simplify its structure, to support the shock absorbing pad stably, and to promote the relative movement of the pad with respect to the panel member of the side door at the time of a side collision. , Etc.
[0005]
[Means for Solving the Problems]
The shock absorbing pad mounting structure for a vehicle according to claim 1 is a structure for mounting a shock absorbing pad provided inside a side door of a vehicle, and supports the peripheral portion along a peripheral portion substantially orthogonal to the load receiving surface of the shock absorbing pad. A holding member is provided, mounting portions to be attached to the panel member of the side door are provided at both ends of the holding member, and a portion other than the mounting portion of the holding member is embedded in the peripheral portion of the shock absorbing pad by insert molding Is provided .
[0006]
Since the holding member is disposed along the peripheral edge substantially orthogonal to the load receiving surface of the shock absorbing pad to hold the peripheral edge of the shock absorbing pad, the peripheral edge of the shock absorbing pad is easily broken at the time of a side collision. Since it becomes relatively easy to move with respect to the panel member of the side door, the shock absorption is excellent. And since the attachment part of the both ends of a holding member is attached to the panel member of a side door, an impact-absorbing pad can be stably supported to a side door. Further, since the portion other than the mounting portion of the holding member is provided in a state where it is embedded in the peripheral portion of the shock absorbing pad by insert molding, the holding member and the shock absorbing pad Thus, the stability of supporting the shock absorbing pad with the holding member can be ensured.
[0008]
According to a second aspect of the present invention, there is provided the shock absorbing pad mounting structure for an automobile according to the first aspect , wherein the holding member is formed of a thin metal plate having a plate thickness direction directed to a load acting direction. Therefore, since the holding member is easily deformed with a small load, the relative movement of the shock absorbing pad with respect to the panel member of the side door can be promoted through the deformation of the holding member in the case of a side collision. Other effects similar to those of the first aspect are achieved.
[0009]
According to a third aspect of the present invention, there is provided the shock absorbing pad mounting structure for an automobile according to the second aspect of the present invention, wherein the holding member is formed as an integral part extending from one mounting portion to the other mounting portion. Therefore, the number of parts of the holding member is minimized, the structure is simple, and the manufacturing and assembly costs can be reduced. Other effects similar to those of the second aspect are achieved.
[0010]
According to a fourth aspect of the present invention, there is provided the shock absorbing pad mounting structure for an automobile according to any one of the first to third aspects, wherein the holding member is about ½ of the peripheral edge of the entire circumference of the shock absorbing pad. It is comprised so that a part may be supported. Therefore, the relative movement of the impact absorbing pad with respect to the panel member of the side door at the time of a side collision can be further promoted, and the holding member can be reduced in size and weight. Other exhibits the same effect as any one of claims 1 to 3.
[0011]
According to a fifth aspect of the present invention, there is provided the shock absorbing pad mounting structure for an automobile according to the fourth aspect , wherein the holding member is provided along a lower peripheral portion of the shock absorbing pad. Therefore, the shock absorbing pad can be stably supported by the holding member.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
This embodiment is an example when the present invention is applied to a right side door on the front side of an automobile. Hereinafter, front and rear and right and left of the automobile will be described as front and rear and right and left.
As shown in FIGS. 1 and 2, the door body of the right side door 1 on the front side of the automobile is composed of an outer panel 2, an inner panel 3, a door trim 4, and the like, and is lifted and lowered by a window regulator (not shown). A door glass 5 is also provided, and a shelf-like armrest portion 6 is formed on the inner surface of the side door 1.
[0013]
Inside the side door 1, an impact bar 7 is arranged in the front-rear direction for increasing rigidity against a side collision in which an external vehicle collides with the side door 1, and both front and rear ends of the impact bar 7 are doors. It is fixed to the main body.
As shown in FIGS. 1 and 2, the side door 1 has an action on the lumbar region of the occupant during a side collision at a position corresponding to the lumbar region of the seated occupant and lower than the armrest unit 6. Shock absorbing pads 10 to 12 made of a synthetic resin foam for relaxing the impact to be placed are arranged in a state where the lift space 14 of the door glass 5 is opened, and an impact absorbing pad 13 is also provided (hereinafter referred to as impact). The absorbent pad is called a pad member).
[0014]
The pad members 10 to 12 are located along the inner surface of the outer panel 2 and supported by the impact bar 7 with the holding member 10 a, and the opening holes of the inner panel 3 that are positioned on the substantially outer surface side of the inner panel 3. And a block-shaped pad member 12 fixed to the outer surface of the door trim 4 by bonding.
A pad member 13 for reducing the impact acting on the side of the chest of the occupant during a side collision is provided between the inner panel 3 and the door trim 4 at a position in the front-rear direction corresponding to the seated occupant and above the armrest portion 6. And fixed to the outer surface of the door trim 4 by bonding.
[0015]
Next, an attachment structure for attaching the pad member 11 to the inner panel 3 from the door trim 4 side will be described.
As shown in FIG. 3 to FIG. 6, the curved holding member 15 is disposed along the lower half of the peripheral edge portion 11a substantially orthogonal to the load receiving surface (outer surface and inner surface) of the pad member 11, The pad member 11 is attached to the inner panel 3 via the holding member 15. The holding member 15 is a member made of a thin steel plate in which the thickness direction is directed to the load acting direction at the time of a side collision, and attachment portions 16 and 17 for attaching to the inner panel 3 are provided at both ends of the holding member 15. The mounting portions 16 and 17 are fixed to the mounting seats 20 and 21 of the inner panel 3 by fasteners 18 and 19, respectively.
[0016]
Of the holding member 15, the holding body portions 15 a other than the mounting portions 16 and 17 are formed in a narrow band shape so as to be deformed even by a small load at the time of a side collision, and the holding body portion 15 a is formed when the pad member 11 is formed. It is provided in a state of being embedded in the peripheral edge portion 11a of the pad member 11 by insert molding, and the holding body portion 15a and the pad member 11 are coupled with a sufficient coupling force. As shown in FIG. 6, the mounting seat 20 for the mounting portion 16 protrudes toward the vehicle compartment side with respect to the mounting seat 21 for the mounting portion 17, so that the mounting seat 15 is positioned in the middle of the holding body portion 15 a of the holding member 15. Is formed with a stepped portion 22 for stepping down.
[0017]
The operation of the shock absorbing pad mounting structure described above will be described.
The holding member portion 15 a of the holding member 15 is configured to support the lower half peripheral portion 11 a of the pad member 11, and the holding member portion 15 a is embedded in the peripheral edge portion 11 a of the pad member 11 and firmly bonded. Therefore, the pad member 11 can be stably supported by the holding member 15 having a small and simple structure.
[0018]
Moreover, when the outer panel 2 is deformed to the vehicle compartment side at the time of a side collision and the side collision load is applied to the pad member 11 that is inserted into the opening of the pad member 10 and the inner panel 3, the holding body portion 15 a of the holding member 15. Due to the deformation of the pad member 11 and the peripheral edge portion 11a of the pad member 11 being broken, the pad member 11 is immediately moved to the vehicle compartment side, and at an early stage after the side collision earlier than the inner panel 3 is moved to the vehicle compartment side. Since the shock force buffered from the pad members 10, 11, and 12 acts on the occupant and presses the occupant toward the vehicle interior side, the shock absorbing performance can be sufficiently enhanced. Moreover, since the holding member 15 is made of a thin steel plate and is an integrated part that is continuous from the mounting part 16 to the mounting part 17, it is a lightweight part with a minimum number of parts and a simple structure. This is also advantageous in terms of cost.
[0019]
Another Embodiment: See FIGS. 7 to 11 Next, a shock absorbing pad mounting structure according to another embodiment will be briefly described.
As shown in FIGS. 7 to 11, the lower half of the peripheral edge portion 30 a orthogonal to the load support surface (outer surface and inner surface) of the pad member 30 made of a synthetic resin foam instead of the pad member 11 is supported. A holding member 31 is provided, and the pad member 30 is fixed to the inner panel 3 via the holding member 31. The holding member 31 is a member made of a thin steel plate with the plate thickness direction directed to the load acting direction at the time of a side collision, and attachment portions 32 and 33 for attachment to the inner panel 3 are provided at both ends of the holding member 31. The mounting portions 32 and 33 are formed and fixed to the mounting seats 36 and 37 of the inner panel 3 by fasteners 34 and 35, respectively.
[0020]
Of the holding member 31, the holding body portions 31 a other than the attachment portions 32 and 33 are formed in a narrow band shape so as to be deformed even by a small load at the time of a side collision, and the holding body portion 31 a is formed when the pad member 30 is formed. It is provided in a state of being embedded in the peripheral edge portion 30a of the pad member 30 by insert molding, and the holding body portion 31a and the pad member 30 are coupled with a sufficient coupling force. As shown in FIG. 11, the mounting seat 36 for the mounting portion 32 is positioned substantially on the same plane as the mounting seat 37 for the mounting portion 33, so the holding member 31 is straight in plan view. is there.
[0021]
The operation of the shock absorbing pad mounting structure described above will be described.
The holding member portion 31a of the holding member 31 is configured to support the lower half peripheral portion 30a of the pad member 30, and the holding member portion 31a is embedded in the peripheral portion 30a of the pad member 30 and firmly coupled. Therefore, the pad member 30 can be supported with good stability.
[0022]
In addition, as described in the above embodiment, when the outer panel 2 is deformed to the vehicle compartment side at the time of a side collision and a side collision load acts on the pad member 30, the deformation of the holding body portion 31a of the holding member 31 causes the deformation. Further, the pad member 30 moves to the vehicle compartment side due to the breakage of the peripheral edge portion 30a of the pad member 30, and the shock force buffered from the plurality of pad members including the pad member 30 is received at an early stage after the side collision. Since it acts on the occupant and presses the occupant toward the passenger compartment, the shock absorbing performance can be sufficiently enhanced. Since the holding member 31 is made of a thin steel plate and is an integrated part that is continuous from the attachment part 32 to the attachment part 33, the number of parts is minimal and the light-weight part has a simple structure. This is also advantageous.
[0023]
Here, the modified example of the embodiment will be described. The shape and material of the pad members 11 and 30 are not limited to those of the embodiment, and may be anything that can absorb a side impact load. Further, the shape and structure of the holding members 15 and 31 are not limited to those of the above embodiment, and the holding members 15 and 31 may be configured to support the peripheral edge of the entire circumference of the pad members 11 and 30. Various modifications can be added to the embodiment without departing from the spirit of the present invention.
[0024]
【The invention's effect】
According to the first aspect of the present invention, the holding member that supports the peripheral edge portion is provided along the peripheral edge portion that is substantially orthogonal to the load receiving surface of the shock absorbing pad, and is attached to the panel member of the side door at both ends of the holding member. Since the portion is provided, the peripheral edge portion of the shock absorbing pad is easily broken in the case of a side collision, and the pad is easily moved relative to the panel member of the side door. And since the attachment part of the both ends of a holding member is attached to the panel member of a side door, an impact-absorbing pad can be stably supported to a side door. In addition, since the portion other than the mounting portion of the holding member is provided in a state of being embedded in the peripheral portion of the shock absorbing pad by insert molding, the holding member and the shock absorbing pad can be used even if the holding member is miniaturized to the minimum necessary. As a result, the stability of supporting the shock absorbing pad with the holding member can be secured.
[0026]
According to the invention of claim 2 , the same effect as that of claim 1 is obtained, but the holding member is formed of a thin metal plate with the plate thickness direction directed to the load acting direction. It is easy to deform | transform, and the relative movement of the shock absorption pad with respect to the panel member of a side door can be accelerated | stimulated through deformation | transformation of a holding member in the case of a side collision.
[0027]
According to the invention of claim 3 , although the same effect as that of claim 2 is obtained, the holding member is configured as an integral part that is continuous from one attachment part to the other attachment part. Minimal and simple structure, reducing manufacturing and assembly costs.
[0028]
According to the invention of claim 4, the same effects as any one of claims 1 to 3, wherein the retaining member is approximately of the total circumference of the peripheral portion of shock absorbing pads 1/2 Since it is configured to support the portion, the relative movement of the shock absorbing pad with respect to the panel member of the side door at the time of a side collision can be further promoted, and the holding member can be reduced in size and weight.
[0029]
According to the invention of claim 5 , although the same effect as that of claim 4 is obtained, the holding member is provided along the lower peripheral edge of the shock absorbing pad, so that the shock absorbing pad is stabilized by the holding member. Can be supported.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a side door of an automobile according to an embodiment of the present invention.
FIG. 2 is a perspective view of a side door.
FIG. 3 is a side view of a pad member (impact absorbing pad).
FIG. 4 is a side view of a holding member.
5 is a cross-sectional view taken along line VV in FIG. 3;
6 is a cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a perspective view of a pad member (impact absorbing pad) of another embodiment.
8 is a side view of the pad member of FIG.
FIG. 9 is a side view of the holding member.
10 is a cross-sectional view taken along line XX of FIG.
11 is a cross-sectional view taken along line XI-XI in FIG.
[Explanation of symbols]
1 Car Side Door 2 Outer Panel 3 Inner Panel 11 Shock Absorbing Pad (Pad Member)
11a Peripheral part 15 Holding members 16, 17 Mounting part 30 Shock absorbing pad (pad member)
30a Peripheral part 31 Holding member 32, 33 Attachment part

Claims (5)

In the structure to mount the shock absorbing pad provided inside the side door of the car,
A holding member for supporting the peripheral edge portion along the peripheral edge substantially orthogonal to the load receiving surface of the shock absorbing pad is provided.
Provided with attachment portions to be attached to the side door panel members at both ends of the holding member ,
A portion of the holding member other than the mounting portion is provided in a state of being embedded in a peripheral portion of the shock absorbing pad by insert molding . 2. The shock absorbing pad mounting structure for an automobile according to claim 1 , wherein the holding member is formed of a thin metal plate with a plate thickness direction directed in a load acting direction. The impact-absorbing pad mounting structure for an automobile according to claim 2 , wherein the holding member is configured as an integral part that extends from one mounting portion to the other mounting portion. The holding member is according to any one of claims 1 to 3, characterized in that it is configured to support approximately half portion of the entire circumference of the peripheral portion of the impact absorbing pad Shock absorption pad mounting structure for automobiles. 5. The shock absorbing pad mounting structure for an automobile according to claim 4 , wherein the holding member is provided along a lower peripheral portion of the shock absorbing pad.

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