JP2985676B2 - Impact energy absorbing structure in the vehicle interior - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to
The present invention relates to a shock energy absorbing structure in a vehicle compartment, which is suitable for absorbing impact energy to a pillar portion of a head of an occupant in the vehicle compartment to protect the head of the occupant.

[0002]

2. Description of the Related Art In recent years, as the automobile society has matured,
There is a growing demand for safety measures for occupants. In particular, various technologies have been developed as protection measures for occupants in the event of a collision of a vehicle.

For example, as a countermeasure for protecting a cabin (cabin) at the time of a collision, a shock absorbing structure in which a vehicle body itself is capable of absorbing shock energy while being crushed in response to a shock from a front-rear direction at the time of a collision. Widespread.
In addition, as a measure for directly protecting the occupant's body in the event of a collision, development of airbags and the like in addition to headrests and seat belts has been promoted.

[0004] That is, as a form of collision, there is a case where the automobile is hit from behind, and in such a collision from behind, the occupant receives a strong rearward force due to inertia and the like. On the other hand, the headrest supports the back and head of the occupant together with the seatback, so that the occupant can avoid a rearward collision while being supported by the seatback and the headrest.

[0005] For example, for a collision from the front,
The occupant receives a strong forward force from the inertia force or the like. In contrast, the seat belt prevents the occupant from moving forward, so that the occupant can avoid a forward collision. Also,
If the occupant receives a very strong forward force, the airbag elastically absorbs the impact energy to the front of the occupant, so that the occupant can avoid collision with the front handle, dash panel, window, etc. it can.

[0006]

[0005] By the way, as a form of collision of a car, a typical one is a collision from the front and back. I knew it wasn't a lot,
As a countermeasure against such a side collision, a countermeasure has been developed to protect the passenger compartment by increasing the strength of the door, for example, by adding a reinforcing material to the door panel.

[0007] Further, at the time of a collision of an automobile, it is conceivable that the occupant receives a force such that the occupant collides with a side surface of the occupant due to an inertial force acting on the occupant in the cabin. That is, as described above, when a force is applied to the occupant in the front-rear direction of the vehicle body during a collision, the occupant is prevented from colliding with the front rear portion of the passenger compartment by the seat back, the headrest, the seat belt, the airbag, and the like. However, if the occupant receives a force directed toward the side surface of the vehicle interior, the occupant may collide with the side surface of the vehicle interior.

[0008] In particular, it is desired that the head of the occupant can be prevented from colliding with a high-strength part on the side surface in the vehicle cabin. A representative example of the high strength portion of the side surface in the vehicle interior is a pillar. Inside of such a pillar portion, for example, a structure that is normally stored such as an airbag and expands when it receives a shock and absorbs shock is difficult to install from above the storage space, Further, in the case of a pillar close to the occupant's head, there is a possibility that the expansion of the airbag cannot be completed in time. Furthermore, the cost increase is large. Therefore, it is conceivable to provide a simple but high-impact absorbing structure on the inside of the pillar portion.

A demand for a vehicle structure capable of protecting the occupant's head against such a head collision against a pillar portion of an automobile is remarkable in, for example, the United States, and the safety of the vehicle is considered from the viewpoint of laws and regulations. There is a movement to strictly control sex. For example, FIG. 9 is a diagram illustrating an example of a test range and a shock direction range of a shock absorption test for checking whether a shock absorbing structure required for a pillar portion to protect an occupant's head satisfies a standard. Here, the center pillar is shown, but in the required height range of the pillar inner 2 provided on the interior side of the pillar (center pillar) 1, the shock absorption test is performed from the range and direction indicated by hatching. Do. In other words, a predetermined impact load is applied to the head-simulating object from the corresponding directions in the entire range of the pillar 1 from the front flange portion 4 to the rear flange portion 5 where the pillar inner 2 is connected to the pillar outer 3, It tests whether the shock absorption is sufficient.

In the case where a shock absorbing structure is provided inside the pillar portion on the inside of the vehicle, even if a predetermined impact load is applied from such a required direction in such a region, the impact is imposed before the object simulating the head directly reaches the pillar inner 2. Is absorbed, it can be determined that the shock absorbing structure satisfies the standard. Reference numerals 6 and 7 in FIG. 9 indicate flange trims generally mounted on the flange portions 4 and 5, respectively.

[0011] Embodiments of the typical addition of such an impact load is a front direction (90 ° direction) perpendicular to the side of the vehicle <br/> chamber for the central portion of the front of the pillar inner 2 a
And impact test in the direction, b, the impact test from b 'direction a side and oblique direction of 45 ° in the passenger compartment against the side of the pillar inner 2, the flange portion 4 of the edge portion of the pillar inner 2,
C is a side and oblique 15 ° direction in the vehicle compartment with respect to 5,
This is an impact test from the c 'direction.

[0012] The impact absorption test is performed in each direction as described above in consideration of all possible directions in which the occupant's head may collide with the pillar 1. Whatever direction the part attempts to collide with the pillar 1 from any direction, it is desired to realize an impact absorbing structure capable of reliably absorbing the impact energy from each of these directions and protecting the occupant's head.

[0013] In current vehicles, especially in passenger cars,
There is a wide variety of pillar inners 2 covered with trims, but such existing trims improve the appearance of the vehicle interior and improve the tactile sensation when the occupant touches the pillars. As a conventional trim, for example, one having a configuration as shown in FIG. 10 is generally used. That is, as shown in FIG.
In particular, there is no interposed member capable of absorbing the intended impact, and the gap d between the pillar inner 2 and the trim 8 is also small. As a matter of course, the head of the occupant cannot be protected against an impact under a predetermined condition.

Further, Japanese Unexamined Utility Model Publication Nos. Hei 3-25349 and Hei 3-68149 disclose a structure for preventing unnecessarily deformation and a structure for improving rigidity.
No consideration is given to impact under certain conditions. The present invention has been made in view of the above-described problems, and protects the occupant's head while absorbing the impact energy at the time of the collision even when the occupant hits the head against the interior of the vehicle. It is an object of the present invention to provide an impact energy absorbing structure in a vehicle cabin, which is made possible.

[0015]

According to the first aspect of the present invention, there is provided a vehicle interior impact energy absorbing structure according to the first aspect of the present invention, wherein a structural member constituting a vehicle interior is provided with a shape holding member on a surface on the vehicle interior side. projecting coated cushion body, the shape retaining member includes a holding portion which covers the surface of the cushion body, so as to reach the surface of the cushion body to the vicinity of the vehicle compartment side surface of the structural member includes a recess formed in, between the passenger compartment side surface of the recess and the structural member of the shape retaining member, the mounting member is interposed to fix the shape-retaining member to said structural member side , Surface of the cushion body and the shape retaining portion
Covering the interior side surface of the structural member so as to cover the material
A trim member is provided .

The impact energy absorbing structure of a vehicle interior of the present invention 請 Motomeko 2 in that in the configuration of claim 1, wherein, between said trim member and the shape retaining member, trim attached for fixing the trim member It is characterized in that a member is interposed.

[0017] Incidentally, good that the structural member is a pillar
Good. Further, as a preferred embodiment, together with the cushion body and the shape retaining member extends in the longitudinal direction of the pillar, the recess of the shape retaining member is in so that extends in the longitudinal direction of the pillar.

In a preferred embodiment, the concave portion of the shape holding member has a bottom surface portion in contact with the surface of the structural member and two upright surface portions on both sides of the bottom surface portion. to so that formed on the inclined state makes a large angle with respect to the bottom surface portion. Further, preferred embodiments and
It is to cushion body to so that is mounted in the recess of the shape retaining member.

[0019]

According to the first aspect of the present invention, in the vehicle interior impact energy absorbing structure, the cushion body is held in shape by the shape holding member, and the recess of the shape holding member and the cabin of the structural member are held. the interposed a mounting member between the inner surface and secured to the structural member side along with the shape retaining member. When an impact is applied to the surface of the structural member on the vehicle interior side , a trim portion attached to the surface of the structural member on the vehicle interior side is applied.
The material, the cushion body, and the shape retaining member covering the cushion member absorb the impact energy directed toward the interior side of the vehicle interior of the structural member while being deformed.

[0020] In the impact energy absorbing structure of a vehicle interior of the present invention of claim 2, wherein the above mentioned, said trim member, the trim mounting member interposed between the trim member and the shape retaining member, the It is fixed to the shape holding member.

In the case where the structural member is a pillar, when an impact is applied to a surface of the pillar on the vehicle interior side , the cushion body mounted on the vehicle interior side surface of the pillar and the cushion body covering the cushion body are covered. shaped holding member, to absorb the impact energy toward the vehicle interior side surface of the pillar while being deformed. When the cushion body and the shape holding member extend in the longitudinal direction of the pillar and the concave portion of the shape holding member extends in the longitudinal direction of the pillar, the cushion body and the shape holding member are At any position in the longitudinal direction of the pillar, the pillar can have the same cross-sectional shape. In this case, the cushion body and the shape maintaining member can be efficiently manufactured by extrusion molding or the like.

The recess of the shape holding member is
A bottom surface contacting the surface and two upright surfaces on both sides of the bottom surface
And the upright surface portion is larger than the bottom surface portion.
When formed in an inclined state that forms an angle, the upright surface portion of the concave portion of the shape holding member is formed in an inclined state that forms a large angle with respect to the bottom surface portion. (The direction perpendicular to the bottom surface). For this reason, when an impact is applied to the recess from the front, without giving a large resistance to the impacted object,
Impact energy is absorbed.

A cushion body is provided in the recess of the shape maintaining member.
When There will be equipped, when an impact is applied to the concave portion of the shape retaining member, the cushion member which is mounted in the concave portion while cooperating with the shape retaining member, absorbs the impact energy.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described. FIGS. 1 to 3 show a shock energy absorbing structure in a vehicle cabin according to the first embodiment. The case where it is equipped with a center pillar which is a structural member constituting the above will be described.

As shown in FIG. 1, a trim (trim member) 10 is provided so as to cover the surface of the pillar inner 2 of the pillar (center pillar) 1 on the vehicle interior side. Inside the trim 10, a cushion body 22 covered with the shape holding member 11 is provided. In FIG. 1, reference numeral 3 denotes a pillar outer, reference numerals 4 and 5 denote flange portions where the pillar inner 2 and the pillar outer 3 are connected, and reference numerals 6 and 7 denote pillar trims mounted on the flange portions 4 and 5.

Shape holding member 11 and cushion body 22
1 extend in the longitudinal direction of the pillar 1 as shown in FIGS. The shape holding member 11 includes a holding portion 12 that covers the surface of the cushion body, and the holding portion 12 includes a front portion 12A and a side portion 12B along the inner surface of the trim 10. A recess 13 extending in the longitudinal direction along the center of the pillar 1 is provided at the center of the front portion 12A.
Are formed. The concave portion 13 is formed in a concave shape toward the vehicle interior, and has a bottom surface portion 13 </ b> A contacting a surface (surface) of the pillar inner 2 of the pillar 1 on the vehicle interior side , and the bottom surface portion 1A.
It is composed of two upright surface portions 13B, 13B protruding on both sides of 3A.

The holding portions 12 are formed on the left and right sides of the concave portion 13, and the cushion bodies 22 are respectively provided in spaces surrounded by the front portion 12 A and the side portions 12 B forming the holding portion 12 and the upright surface portion 13 B. Built-in. The side surface portion 12B of the shape maintaining member 11 is located forward of the vehicle body with respect to the front end of the flange portion 4 and rearward of the vehicle body with respect to the front end of the flange portion 5, and the cushion bodies 22 cover the flange portions 4 and 5, respectively. It is provided as follows.

The shape holding member 11 is formed of a sheet metal, and the cushion body 22 is formed of a hard or soft polyurethane foam. The material and thickness of the sheet metal forming the shape holding member 11 and the cushion body 22 are formed. The hardness or the like of the polyurethane foam is determined by the shape holding member 11.
The shock energy absorbing structure formed by coupling the cushioning body 22 and the cushion body 22 is set to have a required rigidity.

That is, when an impact load of a required magnitude is applied from the surface of the trim 10, the shape retaining member 11 and the cushion body 22 absorb or absorb impact energy while deforming or breaking. While giving a drag to the added body (corresponding to the human head), the speed of the body is reduced and the body is stopped. At this time, if the drag applied to the body is too large, the cushioning does not become sufficient, so that the material and thickness of the sheet metal constituting the shape holding member 11 and the cushion body 22 are configured so that an effective cushioning state is obtained. It is necessary to suppress the hardness and the like of the polyurethane foam to prevent the rigidity of the shape holding member 11 and the cushion body 22 from becoming too high.

Conversely, if the rigidity of the shape holding member 11 and the cushion body 22 is too low, a large distance is required until the body is stopped, so that these rigidities cannot be too low. The thickness T of the cushion body 22 and the distance D from the front ends of the flange portions 4 and 5 to the front and rear end surfaces of the cushion body 22 are set so as to correspond to the rigidity of the shape holding member 11 and the cushion body 22, When an impact load of a required magnitude is applied from the surface of the trim 10, the shape retaining member 11 and the cushion body 22 are deformed or broken, and all the impact energy is absorbed before the trim 10 comes into contact with the pillar inner 2 side. It is possible to do it.

The shape holding member 11 may be formed of a resin material instead of a sheet metal. As shown in FIGS. 1 and 2, screw holes 14 are provided at appropriate intervals in the bottom surface portion 13A of the concave portion 13, and the screw holes 15 are also provided in the corresponding portions of the bottom surface portion 13 </ b> A which contact the pillar inner 2. Are provided at appropriate intervals. Then, as shown in FIG.
The shape holding member 11 is fixed to the pillar inner 2 by screwing and fastening a screw 16 as an attachment member in the insides 4 and 15.

In the front portion 12A of the shape holding member 11, clip holes 17 are provided at appropriate intervals.
By inserting a clip 18 as a trim attachment member provided inside the inside of the clip hole 17 into the clip hole 17, the trim 1
0 is fixed to the shape holding member 11.
10A is a central plane portion of the trim 10, 10B, 10
C is a side edge portion (side edge curved portion) of the trim 10.

Since the impact energy absorbing structure in the passenger compartment as the first embodiment of the present invention is configured as described above, when the occupant's head tries to collide around the pillar 1, the following structure is used. In this way, cushioning protects the occupant's head. That is, for example, as shown in FIG. 1, when an impact is applied to the central flat portion 10A of the trim 10 from the direction a, the upright surface portion 13B of the shape holding member 11 and the cushion body 22 inside bear the impact, For example, the shape holding member 11 is deformed as shown by a dashed line in FIG. 3 (A), and each part of the upright surface portion 13B of the shape holding member 11 is trimmed while being deformed or broken according to impact energy. This impact energy is absorbed before the central plane portion 10A of the ten reaches the pillar inner 2.

As shown in FIG. 1, for example, when an impact is applied to the connecting portion between the central plane portion 10A and the side curved portions 10B, 10C of the trim 10 from the direction b or b ', the cushion 22 And the front portion 12A and the side portion 12B of the shape holding member 11 bear this impact, and the shape holding member 11 is deformed as shown by a chain line in FIG. The impact energy is absorbed before the trim 10 reaches the corner of the pillar inner 2 while the respective portions of the upright surface portion 13B of the eleventh portion are deformed or broken according to the impact energy.

Also, as shown in FIG. 1, for example, when an impact is applied to the side edge curved portions 10B and 10C of the trim 10 from the direction c or c ', the side surfaces of the cushion body 22 and the shape holding member 11 Front part 12A and side part 12B
Bears this impact, and, for example, the shape holding member 11 is deformed as shown by a dashed line in FIG. 3 (C), and each part of the upright surface portion 13B of the shape holding member 11 is deformed according to the impact energy. This impact energy is absorbed before the trim 10 reaches the corner of the pillar inner 2 while breaking or breaking. In particular, in this case, the cushion body 22 easily moves laterally, but since the cushion body 22 is held by the shape holding member 11, the cushion body 22 reliably absorbs impact energy without lateral movement.

In this way, no matter what direction the occupant's head collides from around the pillar, if the impact is below a predetermined level, the impact is buffered below a certain level, and the head is lifted. It can be protected. In addition, it is conceivable that the present structure may have the same shape in any cross section in the longitudinal direction. In this case, the shape holding member 11 and the cushion body 22 can be formed by extrusion molding, and these members can be efficiently manufactured. Can.

Next, a description will be given of a second embodiment of the present invention.
As shown in FIG. 4, a fixing bracket 19 is added to the structure of the first embodiment.
One end is fitted between the flange portion 5 and the pillar trim 7, and the other end is connected to the side surface portion 12 </ b> B of the shape holding member 11 by a screw 20. The configuration of other parts is the same as that of the first embodiment, and the description is omitted here.

The impact energy absorbing structure in the vehicle cabin according to the second embodiment of the present invention is constructed as described above, so that the same operation and effects as those of the first embodiment can be obtained, and the fixing bracket 19 can be used. Since the cushion body 22 is held in cooperation with the shape holding member 11, when an impact is applied to the corresponding portion from the direction c or the direction c ', the lateral movement of the cushion body 22 is reliably restricted, and the cushion body 22 Absorption of impact energy due to deformation or destruction of the material is more reliably performed.

Next, a description will be given of a third embodiment of the present invention.
As shown in FIG. 5, in the structure of the first embodiment,
3 are gently inclined so that the upright surface portions 13B, 13B have a large angle with respect to the bottom surface portion 13A, and the configuration of the other portions is the same as that of the first embodiment, so that the description will be given here. Omitted.

Since the impact energy absorbing structure in the vehicle cabin as the third embodiment of the present invention is constructed as described above, almost the same operation and effect as in the first embodiment can be obtained. Since the rigidity in the direction is weakened, energy can be absorbed without giving excessive resistance to a substance (corresponding to a human head) applied as an impact load from the direction a. Therefore, when the head of the occupant attempts to collide with the pillar 1 from the direction a, the effect of protecting the head becomes remarkable.

Next, a description will be given of a fourth embodiment of the present invention. In the vehicle interior impact energy absorbing structure of this embodiment, as shown in FIG. The cushion body 22A is also mounted in the space. The cushion body 22A is, for example, the concave portion 1.
3 is fixed to the surface by adhesion or the like. Fourth Embodiment of the Present Invention
Since the impact energy absorbing structure in the vehicle cabin as the embodiment is configured as described above, substantially the same operation and effect as those of the first embodiment can be obtained. The cushion body 22A of the concave portion 13 also acts, so that the shock absorbing performance can be improved from the a direction, and the head protection effect when the occupant's head tries to collide with the pillar 1 from the a direction becomes remarkable. .

Next, a description will be given of a fifth embodiment of the present invention.
As shown in FIG. 7, in the structure of the first embodiment,
3 is provided with an auxiliary plate 21 made of sheet metal or resin so as to close the space inside the vehicle.
1 is fixed to the front portion 12A of the shape holding member 11 by welding or bonding, for example. Also, the auxiliary plate 21
May be formed integrally with the shape holding member 11.

The impact energy absorbing structure in the vehicle cabin according to the fifth embodiment of the present invention is constructed as described above, so that substantially the same operation and effect as in the first embodiment can be obtained. The rigidity of the auxiliary plate 21 also acts on the impact from the direction, and the shock absorption characteristics are adjusted from the direction a. Further, the shock absorbing characteristics in the directions b and b 'and the directions c and c' are adjusted by the auxiliary plate 21. In particular, by appropriately setting the rigidity of the auxiliary plate 21 in consideration of the rigidity of the shape holding member 11, the rigidity of the cushion body 22, and the like, it is possible to adjust the absorption characteristics of impact energy from each direction to a desired state. it can.

Next, a description will be given of a sixth embodiment of the present invention.
As shown in FIG. 8, the impact energy absorbing structure is provided on a front pillar which is a structural member constituting a cabin of an automobile. As shown in FIG.
Is formed by connecting a pillar inner 32 and a pillar outer 33 by flange portions 34 and 35, and a flange trim 35 on the door side is provided with a pillar trim 37. Then, so as to cover the passenger compartment side surface of the pillar inner 32 of the pillar 31, trim (trim member) 40 is equipped, on the inside of the trim 40, the cushion body 52,52A coated with shape-retaining member 41 Is decorated. In FIG. 8,
Reference numeral 38 denotes a front window glass.

The shape holding member 41 has a
A holding portion 42 for covering the surface of the cushion body is provided. A concave portion 43 extending in the longitudinal direction of the pillar 31 is formed closer to the front window glass 38 than the holding portion 42. The concave portion 43 includes a bottom surface portion 43A that comes into contact with a surface (front surface) of the pillar inner 32 of the pillar 31 on the vehicle interior side , and an upright surface portion 43B that extends from one side of the bottom surface portion 43A to the holding portion 42.

A cushion body 52 is incorporated in a space surrounded by the holding portion 42 and the surface of the pillar inner 32 on the vehicle interior side, and a cushion 43 is enclosed in a space surrounded by the bottom surface portion 43A and the upright surface portion 43B. A body 52 is incorporated. The side surface portion 42B of the shape holding member 41 is located behind the front end of the flange portion 35, and the front end portion of the bottom portion 43A of the shape holding member 41 is positioned so as to exceed the front end of the flange portion 34. The cushion members 52, 52A are provided so as to cover the flange portions 35, 34.

The shape holding member 41 is formed of a sheet metal, and the cushion bodies 52 and 52A are formed of hard or soft polyurethane foam. , 52A
Is set so that the impact energy absorbing structure formed by combining the shape holding member 41 and the cushion bodies 52 and 52A has a required rigidity.

The shape holding member 41 may be formed of a resin material instead of a sheet metal. Also, as shown in FIG.
A screw hole 44 is provided in the bottom surface 43A.
A screw hole 45 is also provided in a corresponding portion of the pillar inner 32 with which A contacts, and a screw 46 as an attachment member is screwed into these screw holes 44 and 45 and fastened, so that the shape holding member 41 is connected to the pillar inner 32. 32.

A clip hole 47 is provided in the front portion 42A of the shape holding member 41, and a clip 48 serving as a trim mounting member provided inside the trim 40 is inserted into the clip hole 47 to perform trimming. 40 is fixed to the shape holding member 41. Sixth Embodiment
Since the impact energy absorbing structure in the vehicle cabin as the embodiment is configured as described above, the head of the occupant from various directions in the vehicle cabin toward the pillar 31 is substantially similar to the first embodiment. Even if a collision occurs, the impact energy can be absorbed so that the head does not directly collide with the pillar 31 while the shape holding member 41 and the cushion bodies 52 and 52A are deformed or broken.

Therefore, no matter which direction the occupant's head collides from around the pillar, if the impact is below a predetermined level, the impact is buffered below a certain level,
You can protect your head. It is also conceivable to combine the parts of the embodiments described above. For example, the fixing bracket 19 provided in the structure of the second embodiment or its equivalent may be added to the structure of the third to sixth embodiments, or the inclined standing surface portion 13B provided in the structure of the third embodiment, It is conceivable to add 13B or the equivalent to the structure of the fourth or fifth embodiment, or to add the cushion body 22A provided in the structure of the fourth embodiment to the structure of the fifth embodiment.

Further, the shape holding members 11 and 41 of each embodiment are described.
The shape of the cushions 22, 22A, 52, 52A is not limited to the shape of the embodiment. In addition, each embodiment
Although the present invention relates to a center pillar or a front pillar, the present structure can be applied to other pillars such as a rear pillar, and can also be applied to impact energy absorption for a vehicle interior surface other than the pillar.

[0052]

As described above in detail, according to the impact energy absorbing structure in the vehicle compartment according to the first aspect of the present invention, the shape of the structural member constituting the vehicle compartment on the vehicle interior side surface is maintained. cushion body covered with member is protruded, the shape retaining member includes a holding portion which covers the surface of the cushion body, reaching from the surface of the cushion body to the vicinity of the vehicle compartment side surface of the structural member includes a recess formed to be, between the passenger compartment side surface of the recess and the structural member of the shape retaining member, the mounting member through to fix the shape-retaining member to said structural member side And the surface of the cushion body and the shape retention
Cover the surface of the structural member on the vehicle interior side so as to cover the member.
The configuration of the trim member is Ru provided for covering, tri
When the shock energy directed toward the structural member is absorbed by deformation or destruction of the cushion member, the shape retaining member, or the like, the occupant in the passenger compartment attempts to collide with the structural member, for example. In addition, this can be buffered to protect the occupants.

[0053]

According to a second aspect of the present invention, in the vehicle interior impact energy absorbing structure according to the first aspect , a trim mounting member for fixing the trim member between the trim member and the shape holding member. The effect of being able to protect the occupant's head while securely fixing the trim member is obtained. When the structural member is a pillar,
It is possible to reliably buffer the pillar, which is likely to collide with the occupant's head, and the occupant has a great protection effect.

[0055] together with the cushion member and the shape retaining member extends in the longitudinal direction of the pillar, the recess of the shape retaining member is extended in the longitudinal direction of the pillar, the cushion body and the shape-retaining member Easy to manufacture, low cost,
It is possible to obtain an impact energy absorbing structure in the vehicle cabin that has a large occupant protection effect.

[0056] concave portion of the shape retaining member is comprised of two upstanding surface portions on both sides of the bottom and bottom surface portion in contact with the surface of the structural member, it is standing upright surface portion, a large angle to the bottom surface When formed in an inclined state , the impact energy can be absorbed gradually, and the effect of protecting the occupant can be enhanced.

[0057] When the cushion body in a recess of the shape retaining member is equipped, it is possible to enhance the impact absorption effect can be enhanced the protective effect of the occupant.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a shock energy absorbing structure in a vehicle interior as a first embodiment of the present invention is mounted on a vehicle body (pillar).

FIGS. 2A and 2B are views showing a shock energy absorbing structure in a vehicle cabin as a first embodiment of the present invention, wherein FIG. 2A is a front view and FIG.
Is a side view.

FIGS. 3A and 3B are diagrams showing an operation of a shock energy absorbing structure in a vehicle cabin as a first embodiment of the present invention, wherein FIG.
(B) relates to the impact from the b direction, and (C) relates to the impact from the c direction.

FIG. 4 is a half sectional view showing a shock energy absorbing structure in a vehicle cabin according to a second embodiment of the present invention.

FIG. 5 is a sectional view showing a shock energy absorbing structure in a vehicle cabin as a third embodiment of the present invention.

FIG. 6 is a sectional view showing an impact energy absorbing structure in a vehicle cabin according to a fourth embodiment of the present invention.

FIG. 7 is a sectional view showing a shock energy absorbing structure in a vehicle cabin as a fifth embodiment of the present invention.

FIG. 8 is a sectional view showing an impact energy absorbing structure in a vehicle cabin according to a sixth embodiment of the present invention.

FIG. 9 is a cross-sectional view of a pillar portion for explaining an impact load considered as a target of the impact energy absorbing structure in a vehicle cabin according to the present invention.

FIG. 10 is a perspective view showing a trim conventionally provided in a pillar portion.

[Explanation of symbols]

 Reference Signs List 1 pillar (center pillar) 2 pillar inner 2A interior side of pillar inner 2 3 pillar outer 4,5 pillar 1 flange 6,7 flange trim 10 trim (trim member) 10A central plane portion of trim 10 10B, 10C side of trim 10 Curving portion 11 Shape holding member 12 Holding portion of shape holding member 11 12A Front portion of shape holding member 11 12B Side surface portion of shape holding member 11 13 Depression of shape holding member 11 13A Bottom portion of shape holding member 11 13B Shape holding member 11 upright surface portion 13A bottom surface portion 13B upright surface portion 14,15 screw hole 16 screw 17 clip hole 18 clip 19 fixing bracket 20 screw 21 auxiliary plate 22,22A cushion body 31 pillar (front pillar) 32 pillar inner 32A pillar inner 3233 Pillar outer 34, 35 Flange part of pillar 31 37 Flange trim 38 Front window glass 40 Trim (trim member) 41 Shape holding member 42 Holding part of shape holding member 41 43 Depression of shape holding member 41 43A Bottom part of recess 43 43B Depression 43 upright surface portion 43A bottom surface portion 43B upright surface portion 44,45 screw hole 46 screw 47 clip hole 48 clip 52,52A cushion body

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasushi Tsuchihara 5-33-8 Shiba, Minato-ku, Tokyo Inside Mitsubishi Motors Corporation (72) Ryosuke Yamamoto 5-33-8 Shiba, Minato-ku, Tokyo No. Mitsubishi Motors Corporation (56) References JP-A-6-211088 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60R 21/02-21/04 B60R 13 / 02 B62D 25/04

Claims (2)

(57) [Claims] 1. A cushion member covered with a shape holding member protrudes from a surface of a structural member constituting a vehicle compartment of an automobile on a vehicle interior side , and the shape holding member covers a surface of the cushion member. a holding portion, and a recess formed to reach from the surface of the cushion body to the vicinity of the vehicle compartment side surface of the structural member, the concave portion of the shape retaining member and the casing of the structural member between the inner surface, the mounting member is interposed to fix the shape-retaining member to said structural member, so as to cover the surface and the shape retaining member of said cushion body
Trim member for covering the surface of the structural member on the vehicle interior side
Wherein the is provided, in the vehicle interior impact energy absorbing structure. To 2. A between the trim member and the shape retaining member, wherein the trim mounting member for fixing the trim member is interposed, the impact energy absorption of the vehicle interior according to claim 1, wherein Structure .