JPH10310012A - Door for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively absorb the load to an occupant at the side impact. SOLUTION: A door arm rest 5 is supported in such a manner that it can freely displace to the outside in the width direction of a vehicle via a sliding mechanism 13. The sliding mechanism 13 is formed out of a supporting member 15 and a sliding member 17. Thus, a first energy absorbing member 17 is provided which undergoes plastic deformation while receiving frictional reaction under a load imposed on the door arm rest 5 by the inside of the car interior. A second energy absorbing member 15 is provided which undergoes plastic deformation under higher load than the first energy absorbing member 17 and which is able to transmit the load from the lateral or vertical direction side coming from the first energy absorbing member 17 side to an inner panel 3 and which extends in the longitudinal direction of the car body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door that takes into consideration the mitigation of an occupant during a vehicle side collision.

[0002]

2. Description of the Related Art A conventional structure of this kind is disclosed, for example, in Japanese Utility Model Laid-Open No. 6-59131, Japanese Utility Model Laid-Open No. 6-58759, Japanese Patent Laid-Open No. 6-6123, and Japanese Patent Laid-Open No. 6-47034.
There are those described in Japanese Patent Publication No. In the structures described in these, an energy absorbing structure is provided on an armrest provided on a surface of the inner panel of the vehicle door on the vehicle interior side.

Here, the general sectional structure of a vehicle door will be described with reference to FIG. 13. As shown in FIG. 13 (a), the vehicle door comprises an outer panel 1 and an inner panel 3, and the inner panel The door trim 7 provided with the armrest 5 is attached to a surface of the vehicle 3 on the vehicle interior side.

When the obstacle 9 collides with the outer panel 1 at the time of a side collision, the outer panel 1 is locally deformed as shown in FIG. The collision phenomenon is shown in FIG.
When the outer panel 1 is further advanced as in the above, the outer panel 1 is completely crushed and comes into contact with the inner panel 3. In such a state, the outer panel 1 and the inner panel 3 enter the vehicle cabin, and eventually interfere with the occupant's 11 chest, abdomen, or waist. At this time, the armrest 5 has the energy absorbing structure described in each of the above publications, so that the impact on the occupant 11 can be reduced.

[0005]

However, the structure described in Japanese Patent Application Laid-Open No. 6-58759 has a problem that a considerable amount of deformation is allowed in the initial stage of the compression deformation, so that the energy absorption effect is small. The structure described in Japanese Patent Application Laid-Open No. 6-6123 has a considerably high energy absorption effect at the initial stage of compressive deformation, but after buckling, there is no device for controlling the deformation, so that the energy absorption at the latter half is not improved. There is a problem of poor effectiveness. Furthermore, JP-A-6-6123 and JP-A-6-04703
In the structure described in Japanese Patent Publication No. 4 (1994), energy is properly absorbed when a straight lateral load is applied from the inside of the vehicle compartment to the outside in the vehicle width direction, but the behavior of the occupant during a collision is complicated, A biased load or the like from an oblique vertical direction may also act, and when the biased load is applied, there is a problem that the battery is easily broken by a bending load and the energy absorbing effect is poor.

According to the present invention, it is possible to sufficiently exert an energy absorbing effect from the beginning to the second half of the collision phenomenon, and
An object of the present invention is to provide a vehicle door capable of sufficiently exhibiting an energy absorbing effect even with an eccentric load.

[0007]

The invention according to claim 1 comprises an outer panel and an inner panel, and a door armrest can be displaced outwardly in the vehicle width direction on a surface of the inner panel on the vehicle interior side via a slide mechanism. The slide mechanism is formed by a support member supported on a surface of the inner panel on the vehicle interior side, and a slide member slidably supported by the support member and displaceable with respect to the inner panel. A first energy absorption along the longitudinal direction of the vehicle body, which is plastically deformed while receiving a frictional reaction force with respect to the inner panel side by the displacement of the slide member displaced together with the door armrest due to a load on the door armrest from the vehicle interior side; A member that is plastically deformed by a load higher than that of the first energy absorbing member by the displacement of the slide member; The first energy absorbing member, the inner panel, and the second energy absorbing member along the vehicle longitudinal direction capable of transmitting a load from the lateral direction or the vertical direction from the first energy absorbing member side to the inner panel. It is characterized by being interposed between.

Accordingly, when the occupant interferes with the door armrest from the vehicle interior side during a side collision of the vehicle, the slide member displaced together with the door armrest slides on the support member supported on the vehicle interior side surface of the inner panel to displace. can do. At this time, the first energy absorbing member is plastically deformed while receiving a frictional reaction force by the displacement of the slide member displaced together with the door armrest due to the load on the door armrest from the vehicle interior side, and energy is absorbed from an initial stage. . Further, at the time of the plastic deformation, a load from the side in the horizontal direction from the side of the first energy absorbing member or from the vertical direction can be transmitted to the inner panel through the second energy absorbing member. When the collision phenomenon further progresses, the second energy absorbing member is plastically deformed and further absorbs energy.

According to a second aspect of the present invention, there is provided the vehicle door according to the first aspect, wherein the first energy absorbing member and the second energy absorbing member generate a frictional reaction force while fitting and moving with each other. It is characterized by having a shape that undergoes plastic deformation upon receipt.

Therefore, in addition to the operation of the first aspect of the present invention, the first energy absorbing member and the second
Can be plastically deformed by receiving a frictional reaction force while fitting and moving with each other. With this fitting structure, the second energy absorbing member can transmit a load from the side in the horizontal direction from the side of the first energy absorbing member or from the vertical direction to the inner panel.

According to a third aspect of the present invention, in the vehicle door according to the second aspect, the first energy absorbing member also serves as the slide member, and the second energy absorbing member also serves as the support member. It is characterized by having.

Therefore, in addition to the effect of the second aspect, the slide member and the first energy absorbing member can be integrally formed. Further, the support member and the second energy absorbing member can be integrally formed.

According to a fourth aspect of the present invention, in the vehicle door according to the second or third aspect, the first energy absorbing member and the second energy absorbing member are formed in a U-shaped cross section. It is characterized in that the opening sides face each other and are fitted to each other, and each opening edge has a fitting portion having a curved surface with a reverse curvature.

Therefore, in addition to the function of the second or third aspect of the present invention, the first energy absorbing member and the second energy absorbing member which are formed to have a U-shaped cross section and which are fitted to each other with the openings facing each other. Can be fitted while exhibiting a frictional reaction force to absorb energy. At this time, the fitting can smoothly proceed while exerting a frictional reaction force by the fitting portion having the curved surface of the opposite curvature of each opening edge. or,
At the time of assembling, it can be easily assembled by the fitting portion.

According to a fifth aspect of the present invention, there is provided the vehicle door according to the second or third aspect, wherein the first energy absorbing member is formed in a U-shaped cross section, and the second energy absorbing member is Is formed in a rectangular cross section, and one side of the second energy absorbing member is fixed to the inner panel, and the opening side of the first energy absorbing member is fitted to the other side, and the fitting is performed. The second energy absorbing member is provided with a buckling adjusting portion for setting a load for buckling deformation, which is performed at a fitting portion having a curved surface with a reverse curvature.

Therefore, in addition to the effect of the second or third aspect of the present invention, the first energy absorbing member advances the fitting while receiving a frictional reaction force with respect to the second energy absorbing member to perform plastic deformation. be able to. Further, the fitting can proceed while receiving the frictional reaction force at the fitting portion having the curved surface with the inverse curvature, and the plastic deformation can be performed smoothly. Further, the fitting at the time of assembling the first energy absorbing member and the second energy absorbing member can be easily performed by the fitting portion. Also, the buckling deformation load can be easily set by the buckling adjustment section of the second energy absorbing member.

According to a sixth aspect of the present invention, in the vehicle door according to the second or third aspect, the first energy absorbing member is formed in a substantially triangular cross section with one side opening, and the second energy absorbing member is formed in the second side. Is formed in a substantially triangular closed cross section, and the vertical apex angle of the second energy absorbing member is formed larger than the vertical apex angle of the first energy absorbing member. While being fixed,
The opening side of the first energy absorbing member is fitted to the apex side.

Therefore, in addition to the effect of the second or third aspect of the present invention, since the sectional apex angle of the second energy absorbing member is larger than the sectional apex angle of the first energy absorbing member, the first energy absorbing member is formed by the first energy absorbing member. It is possible to perform energy absorption by performing plastic deformation while receiving a frictional reaction by opening the apex of the energy absorbing member while sliding on the energy absorbing member.

According to a seventh aspect of the present invention, in the vehicle door according to the second aspect, the first energy absorbing member also serves as a part of the slide member, and the second energy absorbing member includes the second energy absorbing member. It is characterized in that it also serves as a part of the slide member and the support member.

Therefore, in addition to the function of the second aspect of the present invention, a part of the slide member and the first energy absorbing member can be integrally formed, and a part of the slide member, the support member and the second energy absorbing member can be formed. The absorbing member can be integrally formed of the same member.

According to an eighth aspect of the present invention, in the vehicle door according to the seventh aspect, the first energy absorbing member has a closed cross section having a contact surface on one side and a projection on the contact surface. The second energy absorbing member is formed in a trapezoidal cross section of one side opening protruding from the inner panel, and has a flange portion slidable along the inner panel at an opening edge, and the trapezoidal cross section The top surface has a recess for fitting the projection of the first energy absorbing member, and the abutment surface is abutted.

Therefore, in addition to the effect of the invention of claim 7, when a load acts on the first energy absorbing member due to a load on the door armrest from the vehicle interior side, the first energy absorbing member is deformed and deformed. The load is transmitted to the second energy absorbing member, and the second energy absorbing member is deformed so as to open the trapezoidal cross section while sliding the flange portion at the opening edge along the surface of the inner panel. At the same time, the first energy absorbing member slides into the recess on the top surface of the second energy absorbing member while the protrusion provided on the contact surface of the second energy absorbing member is deformed. Due to such displacement, the door armrest can be displaced in the vehicle width direction with respect to the inner panel.
In addition, when the flange slides or the protrusion slides into the recess, the first energy absorbing member undergoes plastic deformation while receiving a frictional reaction force, thereby absorbing energy.
Further, the second energy absorbing member is plastically deformed, so that energy can be further absorbed. Further, by the engagement between the recess and the projection, a load from the lateral direction or the vertical direction can be transmitted to the inner panel from the first energy absorbing member side via the second energy absorbing member.

According to a ninth aspect of the present invention, there is provided the vehicle door according to the first aspect, wherein the first energy absorbing member has a convex cross section toward the interior of the vehicle with respect to the inner panel, and the first energy absorbing member has a vertical one. A side edge is fixed to the inner panel, and the other side edge is connected to a slide member along a surface of the inner panel, and a vertical slit is provided in the slide member, and the slit is fitted to the inner panel. And a protruding support member for slidably supporting the slide member along the surface of the inner panel.

Therefore, in addition to the operation of the first aspect of the present invention, when the load is transmitted to the first energy absorbing member by the load on the door armrest from the vehicle interior side, the load is transmitted to the first energy absorbing member via the first energy absorbing member. The load is transmitted to the slide member. Thereby, the first energy absorbing member advances plastic deformation due to bending, and at the same time, the sliding member can slide along the surface of the inner panel due to the relationship between the ridge and the slit. Therefore, the bending deformation of the first energy absorbing member is regulated by the sliding of the slide member along the surface of the inner panel, so that the first energy absorbing member is plastically deformed while receiving a frictional reaction force. When the collision further progresses, a load is transmitted from the first energy absorbing member to the second energy absorbing member, and the energy can be further absorbed by plastic deformation of the second energy absorbing member.

A tenth aspect of the present invention is the vehicle door according to any one of the first to ninth aspects, wherein the first energy absorbing member is connected to the inner panel and the first energy absorbing member is connected to the inner panel.
Wherein a bent energy absorbing portion which bends with plastic deformation of the energy absorbing member is provided.

Therefore, in addition to the function of any one of the first to ninth aspects of the present invention, the bending energy absorbing portion is bent by the displacement of the first energy absorbing member, and further energy absorption is performed together with the first energy absorbing member.

According to an eleventh aspect of the present invention, in the vehicle door according to any one of the first to tenth aspects, the surface of the first energy absorbing member facing the vehicle interior in the vehicle width direction is a vehicle width. It is characterized by being formed in a curved surface in the vehicle front-rear direction that is concave outward.

Therefore, in addition to the function of any one of the first to tenth aspects of the present invention, the surface of the first energy absorbing member facing the vehicle interior in the vehicle width direction is formed into a smooth curved surface conforming to the abdomen of the occupant. And the peak load on the occupant can be suppressed.

A twelfth aspect of the present invention is the vehicle door according to any one of the first to eleventh aspects, wherein the first and second energy absorbing members constitute a core of the door armrest, The door armrest has a pad that covers the core.

Therefore, in addition to the function of any one of the first to eleventh aspects of the present invention, the first and second energy absorbing members can be constituted as a core material of the door armrest, and furthermore, a pad for covering the core material can be provided. Energy absorption can be further improved.

According to a thirteenth aspect of the present invention, in the vehicle door according to the twelfth aspect, the surface of the pad facing the vehicle interior in the vehicle width direction is formed into a curved surface in the vehicle front-rear direction concave toward the vehicle width outside. It is characterized by having been formed.

Therefore, in addition to the effect of the twelfth aspect,
The surface of the pad of the door armrest can also be made a smooth curved surface according to the abdomen of the occupant, and the impact load can be further suppressed.

[0033]

According to the first aspect of the present invention, the first energy absorbing member is plastically deformed while receiving a frictional reaction force by the load on the door armrest from the vehicle interior side, so that sufficient energy is absorbed from the beginning. Can be. Further, when the collision phenomenon progresses, the second energy absorbing member is also plastically deformed, so that sufficient energy absorption can be performed up to the latter half. Furthermore, since the load from the lateral direction or the vertical direction from the first energy absorbing member can be transmitted to the inner panel, even if a partial load is applied to the door armrest, the door armrest can function sufficiently to reduce the energy. Absorption can be performed.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, since plastic deformation is caused by receiving a frictional reaction while being fitted to each other, sufficient energy can be absorbed from the beginning, and Energy can be sufficiently absorbed with respect to the unbalanced load.

According to the third aspect of the invention, in addition to the effects of the second aspect of the invention, it is easy to manufacture and compact, and can be sufficiently applied to a door armrest in a vehicle cabin.

According to the fourth aspect of the invention, in addition to the effect of the second or third aspect, plastic deformation can be performed very smoothly while receiving a frictional reaction force by the fitting portion, and sufficient Energy can be reliably absorbed.

According to the fifth aspect of the invention, in addition to the effect of the second or third aspect, the plastic deformation while receiving the frictional reaction force is smoothly performed by the fitting portion, and the energy absorption is reliably performed from the beginning. Can be made. Also, the second
The energy absorption by the second energy absorbing member is surely performed by the buckling adjustment portion of the energy absorbing member, and accurate and sufficient energy absorption can be achieved until the latter half.

According to the sixth aspect of the present invention, in addition to the effects of the second or third aspect, the second energy absorbing member is opened by utilizing the substantially triangular cross section of the second energy absorbing member. Since the plastic deformation is performed, the plastic deformation is reliably performed while receiving the frictional reaction force, and the energy can be accurately absorbed from the beginning. Further, at the time of assembling, the opening side of the first energy absorbing member can be fitted to the vertex angle side of the second energy absorbing member, so that the assembling becomes extremely easy.

According to the seventh aspect of the invention, in addition to the effect of the second aspect of the present invention, the manufacturing of a part of the slide member and the first energy absorbing member can be integrally formed by the same member,
Further, a part of the slide member, the support member, and the second energy absorbing member can be integrally formed by the same member. Therefore, manufacture is extremely easy. In addition, it can be made compact as a whole and can be sufficiently applied to a door armrest in a vehicle cabin.

According to the invention of claim 8, in addition to the effect of the invention of claim 7, the load from the door armrest side is transmitted to the second energy absorbing member via the closed cross section of the first energy absorbing member. The load can be smoothly transmitted, and the energy can be absorbed accurately.

According to the ninth aspect of the invention, in addition to the effect of the first aspect, the slide member is slid in a direction intersecting the load acting on the door armrest. Plastic deformation due to bending of energy members will be regulated,
Higher energy absorption can be achieved.

According to the tenth aspect, in addition to the effects of any one of the first to ninth aspects, higher energy absorption can be performed by the bending energy absorbing portion.

According to the eleventh aspect, in addition to the effects of any one of the first to tenth aspects, the presence of the curved surface can further reduce the peak load on the abdomen of the occupant.

According to the twelfth aspect of the invention, in addition to the effects of any one of the first to eleventh aspects, the shape of the door armrest can be maintained by sharing the first and second energy absorbing members. The peak load on the occupant can be further suppressed by the energy absorbing effect of the pad.

According to the thirteenth aspect, in addition to the effect of the twelfth aspect, the peak load on the abdomen of the occupant can be further suppressed by the presence of the curved surface of the pad.

[0046]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIGS. 1 and 2 relate to a first embodiment of the present invention, and FIG. 1 is a partially cut-away schematic perspective view of a door armrest 5 of a vehicle door, and FIG. 2A and 2B show cross-sectional views, in which FIG. 1A shows a state before deformation and FIG. 2B shows a state after deformation. This door armrest 5 is also basically the one shown in FIG.
It is provided at the position as described in 3. Therefore, the entire description will be replaced with FIG. 13, and in the present embodiment, the description will be made on the part of the door armrest 5.

As shown in FIGS. 1 and 2, the door armrest 5
Are supported via a slide mechanism 13 so as to be displaceable in the vehicle width direction. The slide mechanism 13 is the inner panel 3
A support member 15 supported on the vehicle interior side surface of the vehicle, and the inner panel 3 slidably supported by the support member 15
And a slide member 17 which can be displaced with respect to.

In this embodiment, the support member 15 also serves as the second energy absorbing member, and the support member 15 and the second
Are the same members. The sliding member 17 also serves as a first energy absorbing member, and the sliding member 17 and the first energy absorbing member 1
7 are configured as the same member and are integrally formed.

Here, the members 15 and 17 will be described as the second energy absorbing member 15 and the first energy absorbing member 17. First, the first and second energy absorbing members 17 and 15 have a U-shaped cross section ( The openings 15a and 17a are fitted to each other with the openings 15a and 17a facing each other, and are provided along the longitudinal direction of the vehicle body. The end wall 15b of the second energy absorbing member 15 is fixed to the inner panel 3 by welding or the like. Each opening 15
a, a fitting portion 21 having a curved surface with a reverse curvature at the edge of 17a,
23 are provided.

The distance between the outer surfaces 25a of the upper and lower walls 25 of the second energy absorbing member 15 is slightly larger than the distance between the inner surfaces 27a of the upper and lower walls 27 of the first energy absorbing member 17, so that the distance between the upper and lower walls can be reduced. It is designed to be difficult.

As shown in FIG. 1, the bent energy absorbing portions 2 are provided at both ends in the front-rear direction of the first energy absorbing member 17.
9 are provided. The bending energy absorbing section 29
The first energy absorbing member 17 is provided integrally with an end portion, has a bent portion 29a, and a flange 31 is fixed to the inner panel 3 by spot welding or the like.

The door armrest 5 is provided with the first
Pad 3 having second energy absorbing members 17 and 15 as a core material, and the outside of both members 15 and 17 as a cushioning material
3 and the pad 33 is further covered with a resin skin 35. Inside the pad 33, a space 24 is formed around the second energy absorbing member 15, so that the first energy absorbing member 17 can smoothly slide.

Then, due to a vehicle side collision or the like, FIG.
As described in the above, when the occupant interferes with the door armrest 5, a load acts on the door armrest 5 from the vehicle interior side by the occupant, and the elastic deformation of the first and second energy absorbing members 17, 15 and the like in the initial stage. Energy absorption takes place via. Next, the door armrest 5 is displaced toward the outside of the vehicle width via the slide mechanism 3.

That is, in the first embodiment, the slide member 17 moves while being guided so as to be fitted to the support member 15, and the displacement of the armrest 5 is allowed. At the time of such a displacement, the first energy absorbing member 17 configured as the same member is plastically deformed by receiving a frictional reaction force against the inner panel 3 side by the displacement of the slide member 17. That is, as shown in FIGS. 2A and 2B, the first energy absorbing member 17 is
Progresses the fitting, and the first energy absorbing member 17 fits into the second energy absorbing member 15 while being slightly expanded so as to penetrate the second energy absorbing member 15 due to the difference in the distance between the outer surface 25a and the inner surface 27a of the upper and lower walls 25, 27. Go.

2 while the first energy absorbing member 17 receives the friction reaction force between the two members 15 and 17.
By performing plastic deformation as shown in (b), energy can be absorbed from the beginning. At this time, the fitting portion 2 having the reverse curvature
1st and 2nd energy absorbing members 1 by 1 and 23
Fitting while deforming 7, 15 is performed smoothly. When the first energy absorbing member 17 is plastically deformed, the second energy absorbing member 15 is set to be plastically deformed with a higher load than the first energy absorbing member 17, so that the first energy absorbing member The plastic deformation of the energy absorbing member 17 can be smoothly performed in advance. Further, the pad 33 is crushed and deformed as shown in FIG. 2B by the movement of the door armrest 5, and absorbs energy by viscous action.

When the collision phenomenon further progresses, the fitting portion 21 of the second energy absorbing member 17 tends to come into contact with the inner surface of the end wall 17b of the first energy absorbing member 17, and the curvature causes the upper and lower walls 25 to move inward. It tends to be bent, and so-called bottoming can be prevented.

Further, when the first energy absorbing member 17 is displaced, the bent energy absorbing portion 29 advances the bending, whereby energy can be absorbed.

With this operation, the energy absorption characteristics can be made closer to the ideal state from the initial stage to the latter half.

FIG. 3 shows the characteristics of the first embodiment by the FS characteristics expressed by the relationship between the change in the load on the abdomen of the occupant and the deformation stroke of the door armrest 5. In FIG. 3, the FS characteristic of the hydraulic damper showing the ideal characteristic waveform is shown. Are the characteristics of the first embodiment of the present invention. In addition, “〜” indicates characteristics when the energy absorbing members 15 and 17 of the first embodiment are not provided. That is, the door armrest does not have the pad and the first and second energy absorbing members, and
This is the characteristic when there is no plastic deformation part for energy absorption, is the characteristic when only the plastic deformation part for energy absorption is provided, and has the plastic deformation part and pad for energy absorption. This is the characteristic in the case of doing.

FIG. 3 shows a characteristic that a high peak load is generated at an early stage and the load is reduced at an early stage. In the case (1), although the initial peak load is slightly lower than in the case (1), there is still a characteristic that the peak load is still high and the load is reduced early as in the case (1). In the case of (1), it has a characteristic that it has the same initial peak load and generates a high peak load due to bottoming in the latter half.

On the other hand, according to the characteristics of the first embodiment of the present invention, the linear region A of FIG. 3 is created through the elastic deformation of the first and second absorbing members 17 and 15 at first, and then the first region is formed.
The energy absorbing member 17 is the second energy absorbing member 15
The buckling deformation region B is created by the action of plastic deformation and the viscosity of the pad 33, and the tip of the second energy absorbing member 15 is bent in the latter half to suppress bottoming, and the bending deformation region C Has been created. Therefore, the rise of the load in the initial stage is rapidly performed, and the peak load is much lower than the peak load.

Thereafter, the deformation mode is suppressed, and the load is increased in the bending deformation region C by reaching the latter half while repeating a slight increase and decrease of the load.

Therefore, even when compared to the characteristics of the hydraulic damper known as an ideal waveform, characteristics similar to the characteristics can be obtained, and the collision phenomenon progresses from the early stage when the occupant interferes with the door armrest 5 and reaches the latter half. Sufficient load absorption can be performed while suppressing the peak load up to this point.

With respect to the door armrest 5,
For example, even when a load is applied from an oblique direction, the first energy absorbing member 17
The load can be reliably transmitted to the inner panel 3 side via the second energy absorbing member 15 by making the fitting progress. Therefore, reliable energy absorption can be performed even with an uneven load.

(Second Embodiment) FIGS. 4 and 5 relate to a second embodiment of the present invention. FIG. 4 is a partially cutaway perspective view corresponding to FIG. 1 of the first embodiment, and FIG. FIG. 3 is a schematic enlarged sectional view corresponding to FIG. 2 of the embodiment. The components corresponding to those in the first embodiment are denoted by the same reference numerals, and the description will not be repeated.

As shown in FIGS. 4 and 5, in the present embodiment, the second energy absorbing member 37 also serving as a support member is formed in a substantially rectangular closed sectional shape. The side 37a is fixed to the inner panel 3 by spot welding or the like, and the opening 17a side of the first energy absorbing member 17 is fitted to the other side 37b. The upper and lower walls 25 of the second energy absorbing member 37 are provided with buckling adjusters 39 formed by being bent inward.

Therefore, in the present embodiment, the other side 37 b of the second energy absorbing member 37 is moved to the end wall 20 of the first energy absorbing member 15 by the buckling adjusting portion 39 provided on the second energy absorbing member 37. After the bottom, the buckling of the second energy absorbing member 37 can be promoted, and the load in the latter half of the collision can be reduced and the peak load can be surely increased, as in the region C shown in FIG. Can be suppressed. Further, the load setting in the region C can be easily adjusted by the size, the number, and the like of the buckling adjusting portions 39. Therefore, more efficient energy absorption can be performed. Other functions and effects are substantially the same as those of the first embodiment.

(Third Embodiment) FIGS. 6 and 7 relate to a third embodiment of the present invention. FIG. 6 is a partially cutaway schematic perspective view corresponding to FIG. 1, and FIG. 7 is a schematic enlarged view corresponding to FIG. It is sectional drawing.
The components corresponding to those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.

As shown in FIGS. 6 and 7, in the present embodiment, the second energy absorbing member 41 also serving as a support member is formed in a substantially triangular closed cross section, and the opposite apex angle side 41a is formed on the inner panel 3. The first energy absorbing member fixed by spot welding or the like and also serving as a slide member is formed in a substantially triangular cross section with one side opening, and the opening 43a side of the first energy absorbing member 43 is connected to the second energy absorbing member 4.
1 is fitted on the vertex angle 41b side.

Therefore, when the occupant interferes with the door armrest 5 and a load acts on the inside of the vehicle cabin, the first energy absorbing member 43 also serving as a slide member is displaced toward the inner panel 3 and the first energy absorbing member 43 is displaced. The opening 43a of the member 43 is connected to the upper and lower walls 25 of the second energy absorbing member 41.
And the vertex angles 41b, 4 of the two members 41, 43
The first energy absorbing member 4 depends on the angle of 3b.
The third opening 43a is gradually expanded while moving along the upper and lower walls 25 of the second energy absorbing member 41, and is deformed so as to penetrate. Thus, the first energy absorbing member 43 undergoes plastic deformation while receiving a frictional reaction force with respect to the second energy absorbing member 41.

Further, with respect to the load on the door armrest 5 from the vertical and diagonal directions, the opening 43a side of the first energy absorbing member 43 is received by interfering with the upper and lower walls 25, and the load from the diagonal direction (diagonal load). ) Can be transmitted from the first energy absorbing member 43 to the inner panel 3 via the second energy absorbing member 41. Therefore, the first energy absorbing member 43 is connected to the second energy absorbing member 4 even with such an uneven load.
It can be plastically deformed while receiving frictional reaction force by being displaced so as to penetrate into 1.

Further, in the latter half of the collision, when the vertex 43b of the first energy absorbing member 43 bottoms on the vertex 41b of the second energy absorbing member 41, the vertex 41b of the second energy absorbing member 41 Buckles and deforms. Therefore, the load can be reduced in the latter half of the collision. The operation of the bent portion 29a and the like are the same as in the first embodiment.

Therefore, in the present embodiment, the degree of plastic deformation increases as the displacement of the first energy absorbing member 43 progresses, and the amount of energy absorption can be increased. Can be performed. Other functions and effects are substantially the same as those of the first embodiment.

(Fourth Embodiment) FIGS. 8 and 9 relate to a fourth embodiment, and FIG. 8 is a partially cutaway schematic perspective view corresponding to FIG.
FIG. 9 is a schematic enlarged sectional view of a main part corresponding to FIG. still,
The components corresponding to those of the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.

In the present embodiment, the second energy absorbing member 45 also serves as a part of the slide member and the support member, and is integrally formed by the same member. The first energy absorbing member 47 also serves as a part of the slide member, and is integrally formed of the same member. The second energy absorbing member 45 is formed in a trapezoidal cross section of one side opening protruding from the inner panel 3, and a flange 49 slidable along the inner panel is provided at an edge of the opening 47a. A concave portion 45c formed by the upper and lower walls 51 on the top surface portion 45b of the trapezoidal cross section of the second energy absorbing member 45.
Are formed. The first energy absorbing member 47
Is provided with a contact surface 47a on one side to form a closed section,
A projection 47b is provided on the contact surface 47a, and the projection 47b is fitted into the recess 45c. Projection 47b is upper and lower wall 5
3 and is in contact with the upper and lower walls 51 of the recess 45c. The first energy absorbing member 47 having a closed cross section is provided with a buckling adjusting portion 55. Note that, also in the present embodiment, a bending energy absorbing portion (not shown) is provided.

When the occupant interferes with the door armrest 5 at the time of a side collision, a load from the vehicle interior side due to the interference causes a load from the second energy absorbing member 45 to the inner panel 3 via the first energy absorbing member 47. Is transmitted. Due to this load transmission, the flange portion 49 of the second energy absorbing member 45 moves up and down along the inner panel 3 so that the upper and lower walls 51 of the concave portion 45c are deformed so as to be opened.

According to this, the first energy absorbing member 4
7 starts to buckle by the buckling adjusting section 55, and at the same time, the upper and lower walls 53 of the projection 47b come into contact with the upper and lower walls 51 of the recess 45c while deforming and projecting into the recess 45c. That is, this is equivalent to the displacement of the slide member together with the door armrest 5. As a result, the first energy absorbing member 47 undergoes plastic deformation while receiving a frictional reaction force, thereby absorbing energy.

Even if a variable load acts on the door armrest 5 from above and below, the load is applied to the second energy absorbing member by the fitting of the recesses 45c and 47b and the contact of the contact surface 47a with the top surface 45b. Thus, the energy can be transmitted to the inner panel 3 side through the hole 45, and the energy can be surely absorbed even with an uneven load.

Further, the first energy absorbing member 47 is completely crushed and the top surface 45 of the second energy absorbing member 45 is
b, the flange portion 49 of the second energy absorbing member 45 can slide further up and down along the inner panel 3 to buckle and deform the second energy absorbing member 45. The load can be reduced in the latter half.

Therefore, in the present embodiment, after the first energy absorbing member 47 is securely buckled and deformed,
Buckling of the second energy absorbing member 45 can be performed, and energy absorption close to an ideal waveform can be performed. Further, the buckling of the first energy absorbing member 47 can be adjusted by setting the shape, size, and number of the buckling adjusting portions 55, and more accurate load absorption can be performed. The other operations are substantially the same as those of the first embodiment.

(Fifth Embodiment) FIG. 10 is a schematic perspective view of a fifth embodiment of the present invention, similar to FIG. The components corresponding to those in FIG. 1 are denoted by the same reference numerals, and the description thereof will not be repeated.

In the present embodiment, the surface 17b of the first energy absorbing member 17 facing the vehicle interior in the vehicle width direction is formed as a curved surface in the vehicle front-rear direction that is concave outward in the vehicle width direction. In the present embodiment, the surface 33a of the pad 33 that faces the vehicle interior in the vehicle width direction is formed as a curved surface that is concave in the vehicle width direction in the vehicle longitudinal direction. Therefore, in the present embodiment, when the abdomen of the occupant interferes with the door armrest 5 due to the presence of the surfaces 17b and 33a, the peak load on the abdomen can be further suppressed.

FIG. 11 is a graph showing the characteristics of the present embodiment. In this embodiment, the characteristics of the first to fourth embodiments when there is no curved surface are shown. As described above, when the curved surfaces 17b and 33a are provided, the initial peak load is low, the energy absorption amount is increased as a whole, and the average is further averaged, and a characteristic close to an ideal waveform is obtained. I was able to.

(Sixth Embodiment) FIG. 12 is a partially cutaway schematic perspective view corresponding to FIG. 1 according to a sixth embodiment. The components corresponding to those in FIG. 1 are denoted by the same reference numerals, and the description thereof will not be repeated.

In the present embodiment, the first energy absorbing member 57 has a projecting cross-sectional shape toward the interior of the vehicle with respect to the inner panel 3, and has a fixed flange 59 provided on the upper edge side so that the first energy absorbing member 57 has a spot on the inner panel 3. It is fixed by welding or the like. The lower edge side is integrally connected to a plate-shaped slide member 61 along the inner panel 3.
The slide member 61 is provided with a plurality of vertical slits 63 at predetermined intervals in the vehicle longitudinal direction. A plurality of projecting support members 65 with heads are provided on the inner panel 3 at predetermined intervals in the vehicle longitudinal direction, corresponding to the slits 63. The support member 65 is fitted to the slide member 61.

[0086] The second energy absorbing member 67 is
It has substantially the same structure as the second energy absorbing member 41 of the embodiment. Note that, also in the present embodiment, a bending energy absorbing section 29 is provided. The surface 57a of the first energy absorbing member 57 and the surface 33a of the pad 3 are formed as curved surfaces as in the fifth embodiment.

When the occupant interferes with the door armrest 5 at the time of collision in the vehicle width direction and a load is applied from the vehicle interior side, the first energy absorbing member 57 undergoes bending deformation so as to crush the cross section and slide. The member 61 descends along the inner panel 3. This descent is caused by the slit 63
Is performed by guiding the slide member 61 with respect to the support member 65. At this time, the slide member 6
1 receives frictional resistance with the inner panel 3. This allows the first energy absorbing member 57 to plastically deform while receiving a frictional reaction force, thereby absorbing energy.

Further, when the first energy absorbing member 57 is deformed and bottoms on the second energy absorbing member 67, the second energy absorbing member 67 buckles via the buckling adjusting portion 39, and The load can be reduced. still,
The bent energy absorbing portion 29, the pad 33 and the like also absorb energy in the same manner as described above.

Therefore, in the present embodiment as well, the energy absorption is increased until the latter half of the collision and the increase in the load in the latter half is suppressed while reducing the initial peak load as in the first embodiment. And energy absorption close to an ideal waveform can be performed. Also in the present embodiment, the surface 57a of the first energy absorbing member 57
The same effect as that of the fifth embodiment can be obtained by the curved surface of the surface 33a of the pad 33.

In addition, in addition to the above embodiments, the pad 3
3, a space portion is formed, and the vehicle width direction of the space portion is set to be horizontal,
When the vertical direction of the vehicle body is vertical, it is possible to add a configuration in which the horizontal dimensional ratio to the vertical is 1 or more. The space may have, for example, a rhombic cross section, an elliptical cross section, a rectangular cross section, a triangular cross section, or the like. By providing such a space, the load absorbing effect can be further improved. Further, when a semi-diamond-shaped hole is provided so as to cut the wall surface of the pad 33, the longer diagonal line is compared with a substantially diamond-shaped hole having an aspect ratio of 1.5 to 2.0: 1.0 adjusted to the collision input direction. The collision energy can be efficiently absorbed while suppressing the expansion of the foam with the same energy absorption efficiency.

In the above embodiments, the description has been made on the premise that the door armrest is provided at the position corresponding to the abdomen of the occupant. However, the door armrest may be disposed at other vertical and vertical positions.

[Brief description of the drawings]

FIG. 1 is a partially cutaway schematic perspective view according to a first embodiment of the present invention.

FIGS. 2A and 2B are enlarged schematic cross-sectional views of main parts before deformation and FIG. 2B is an enlarged schematic cross-sectional view of main parts after deformation according to the first embodiment;

FIG. 3 is an FS characteristic diagram of the first embodiment.

FIG. 4 is a partially cutaway schematic perspective view according to a second embodiment.

FIG. 5 is an enlarged schematic sectional view of a main part according to a second embodiment.

FIG. 6 is a partially cutaway schematic perspective view according to a third embodiment.

FIG. 7 is an enlarged schematic sectional view of a main part according to a third embodiment.

FIG. 8 is a schematic partially cutaway perspective view according to a fourth embodiment.

FIG. 9 is an enlarged schematic cross-sectional view of a main part according to a fourth embodiment.

FIG. 10 is a partially cutaway schematic perspective view according to a fifth embodiment.

FIG. 11 is an FS characteristic diagram according to the fifth embodiment.

FIG. 12 is a partially cutaway schematic perspective view according to a sixth embodiment.

FIGS. 13A and 13B are schematic cross-sectional views illustrating a phenomenon of a side collision, in which FIG. 13A is a schematic diagram before a collision, FIG. 13B is a middle stage of a collision, and FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Outer panel 3 Inner panel 5 Door armrest 13 Slide mechanism 15, 37, 41 2nd energy absorption member (support member) 15a, 17a Opening 17 1st energy absorption member (slide member) 17b End wall 21, 23 Fitting Parts 25, 27, 51, 53 Upper and lower walls 29 Bend energy absorbing part 33 Pad 33a Surface 37a One side 37b Other side 39 Buckling adjustment part 41a Anti-vertex side 41b Apex angle 43a Opening 43b Apex angle 45a Opening 45b Top Surface portion 45c Concave portion 47 First energy absorbing member (part of slide member) 47a Contact surface 47b Projection portion 49 Flange portion 55 Buckling adjusting portion 57 First energy absorbing member 57a Surface 61 Slide member 63 Slit 65 Support member 67 Second energy absorbing member

Claims (13)

[Claims] A door armrest which is displaceably supported on a surface of the inner panel on a vehicle interior side via a slide mechanism in a vehicle width direction, wherein the slide mechanism is provided on the inner panel. A support member supported on a surface of the panel on the vehicle interior side, and a slide member slidably supported by the support member and displaceable with respect to the inner panel; A first energy absorbing member is provided along the longitudinal direction of the vehicle body, which is plastically deformed while receiving a frictional reaction force against the inner panel side by the displacement of the slide member displaced with the door armrest due to a load, and by the displacement of the slide member, The first
Second energy absorption along the vehicle front-rear direction capable of plastically deforming with a load higher than that of the first energy absorbing member and transmitting a load from the first energy absorbing member to the inner panel in the lateral direction or the vertical direction. A vehicle door, wherein a member is interposed between the first energy absorbing member and the inner panel. 2. The vehicle door according to claim 1, wherein the first energy absorbing member and the second energy absorbing member are plastically deformed by receiving a frictional reaction while being fitted to each other. A vehicle door having a shape. 3. The vehicle door according to claim 2, wherein the first energy absorbing member also serves as the slide member, and the second energy absorbing member also serves as the support member. Vehicle door. 4. The vehicle door according to claim 2, wherein the first energy absorbing member and the second energy absorbing member are formed in a U-shaped cross section, and the opening sides face each other. A vehicle door having a fitting portion which is fitted to each other and has a curved surface having a reverse curvature at each opening edge. 5. The vehicle door according to claim 2, wherein the first energy absorbing member has a U-shaped cross section, and the second energy absorbing member has a rectangular cross section. It is formed, one side of the second energy absorbing member is fixed to the inner panel, the opening side of the first energy absorbing member is fitted to the other side, and the fitting is performed with a curved surface having a reverse curvature. A vehicle door characterized in that a buckling adjustment unit for setting a buckling deformation load is provided on the second energy absorbing member, the buckling adjustment unit performing the buckling deformation. 6. The vehicle door according to claim 2, wherein the first energy absorbing member is formed in a substantially triangular cross section with one side opening, and the second energy absorbing member is The second energy absorbing member is formed to have a substantially triangular closed cross section, and the vertical apex angle of the second energy absorbing member is formed larger than the vertical apex angle of the first energy absorbing member, and the apex angle side is fixed to the inner panel, A vehicle door, wherein an opening side of the first energy absorbing member is fitted to a vertex angle side. 7. The vehicle door according to claim 2, wherein the first energy absorbing member also serves as a part of the slide member, and the second energy absorbing member is a part of the slide member. And a support member, which also serves as a support member. 8. The vehicle door according to claim 7, wherein the first energy absorbing member is formed in a closed section having a contact surface on one side and a protrusion on the contact surface. The second energy absorbing member is formed in a trapezoidal cross section of one side opening projecting from the inner panel, and has a flange portion slidable along the inner panel at an opening edge,
A vehicle door characterized in that the top surface of the trapezoidal cross section has a concave portion into which the protrusion of the first energy absorbing member is fitted, and the contact surface is brought into contact. 9. The vehicle door according to claim 1, wherein the first energy absorbing member has a cross section that is convex toward the interior of the vehicle with respect to the inner panel, and one upper and lower side edge is the inner side. The other side edge is fixed to a panel, and the other side edge is coupled to a slide member along the surface of the inner panel, and a vertical slit is provided in the slide member, and the slide member is fitted to the slit in the inner panel. A vehicle door characterized in that a protruding support member is provided so as to be slidably supported along a surface of an inner panel. 10. The vehicle door according to claim 1, wherein the first energy absorbing member is coupled to the inner panel and the first energy absorbing member is plastically deformed. A vehicle door comprising a bent energy absorbing portion. 11. The vehicle door according to claim 1, wherein a surface of the first energy absorbing member facing the vehicle interior in the vehicle width direction has a concave shape in a vehicle width outward direction. A vehicle door formed on a curved surface in a vehicle longitudinal direction. 12. The vehicle door according to claim 1, wherein the first and second energy absorbing members form a core of the door armrest, and the door armrest includes: A vehicle door comprising a pad for covering the core material. 13. The vehicle door according to claim 12, wherein a surface of the pad facing the vehicle interior in the vehicle width direction is formed into a curved surface in a vehicle front-rear direction concave toward the vehicle width direction. Vehicle door.