Vehicle interior trim and door structure

Abstract

To provide a technique for improving safety by reducing protrusion of a protrusion part when the protrusion part receives a load.SOLUTION: A vehicle interior trim comprises: a base plate part which is arranged along a vehicle structure constituting a vehicle and covers a cabin side of the vehicle structure; and a protrusion part which is arranged at an initial position with respect to the base plate part so as to protrude from the base plate part toward the inside of the cabin. The protrusion part is attached to the base plate part such that the protrusion part can move in the retreat direction of retreating from the initial position with respect to the base plate part when receiving a load from the cabin side.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to vehicle interior trim and door structures. [Background technology]

[0002] In vehicles, armrests are often provided on the inner wall of the door next to the seat. These armrests may also serve as handles for closing the door. The armrests may also be provided with operating parts including switches for operating power windows and door mirrors.

[0003] The armrest is provided to protrude from the inner wall surface so that an occupant can rest his / her arm thereon, and is configured to have sufficient rigidity to withstand use.

[0004] If an armrest having a relatively high rigidity like this is positioned to protrude from the inner wall surface of the door, when the door is hit from the side of the vehicle and the inner wall surface of the door comes into contact with an occupant, it is conceivable that the impact will be concentrated in the armrest area and transmitted to the occupant.

[0005] Patent document 1 describes how the upper panel of the armrest is maintained in an arm support position during normal vehicle operation and, upon sensing an impact to the side of the vehicle, is moved to a safe position by an actuator, positioning the arm support panel in a folded-down position. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] U.S. Patent No. 6,568,743 [Patent Document 2] JP 2017-179092 A Summary of the Invention [Problem to be solved by the invention]

[0007] In Patent Document 1, when an impact is detected, the armrest can be folded up, but the components of the armrest are still present inside the vehicle cabin. If the armrest has components such as a handle or an operating part, it is difficult to fold it up as in Patent Document 1, and there is a problem that the handle or the operating part actually protrudes.

[0008] The technology disclosed herein has been made in consideration of the above-mentioned actual situation, and its purpose is to provide a technology that improves safety by reducing the protrusion of a protrusion when the protrusion is subjected to a load. [Means for solving the problem]

[0009] In order to solve the above problems, the vehicle interior trim of the present disclosure comprises: a base plate portion disposed along a vehicle structure constituting a vehicle and covering a vehicle interior side of the vehicle structure; a protrusion portion disposed at an initial position with respect to the base plate portion so as to protrude from the base plate portion toward the vehicle interior, The protrusion is attached to the base plate portion such that, when a load is applied from the vehicle interior side, the protrusion is movable in a retraction direction in which the protrusion retracts from the initial position relative to the base plate portion.

[0010] The vehicle interior trim comprises: a weak fixing portion that fixes the protrusion to the base plate portion when the protrusion is in the initial position is provided at a boundary between the protrusion and the base plate portion, When the protrusion receives a load from the vehicle interior side, the weak fixing portion breaks, thereby allowing the protrusion to move relative to the base plate portion.

[0011] Vehicle interior trim, a magnetic attraction member having magnetic properties is provided on a surface of the protruding portion opposite to a surface protruding into the vehicle interior, When the protrusion is in the initial position, the magnetic attraction member faces a metal panel that constitutes the vehicle structure or is attached to the vehicle structure, and is disposed at a distance from the metal panel; When the protrusion becomes movable, the magnetic attraction member may be attracted to the metal panel.

[0012] The interior trim of the vehicle may be configured so that the inside of the protruding portion is filled with a buffer material having thixotropy.

[0013] Vehicle interior trim, an engagement portion that is engaged with the protrusion disposed at the initial position and that is capable of restricting movement of the protrusion in the retraction direction in an engaged state; a drive unit capable of switching the engagement portion between the engaged state and a disengaged state in which the engagement is released by driving the engagement portion; may further comprise:

[0014] In order to solve the above problems, the door structure of the present disclosure includes: The vehicle interior trim; The vehicle structure includes a door body having an outer panel of the door of the vehicle and an inner panel to which the vehicle interior trim is attached; Equipped with.

[0015] The door structure includes: a restricting portion that restricts movement of the protrusion in the retracting direction by engaging with the protrusion disposed at the initial position; a link portion having one end connected to the restricting portion and the other end disposed on the outer panel side, When the outer panel is deformed toward the vehicle cabin, the link portion may move or deform in conjunction with the deformation of the outer panel, thereby releasing the restriction of the protrusion by the restricting portion connected to the one end of the link portion.

[0016] In order to solve the above problems, the door structure of the present disclosure includes: The vehicle interior trim; The vehicle structure includes a door body having an outer panel of the door of the vehicle and an inner panel to which the vehicle interior trim is attached; a detection unit that detects information indicating that the door has been hit or information about the surroundings of the vehicle for predicting the collision; a control unit that acquires a detection result by the detection unit, and switches the engagement unit from the engaged state to the disengaged state by controlling the drive unit when the detection result satisfies a predetermined condition; Equipped with. Effect of the Invention

[0017] According to the present disclosure, it is possible to provide a technique for improving safety by reducing the protrusion of a protrusion when the protrusion is subjected to a load. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of a door structure according to a first embodiment. [Diagram 2] FIG. 2 is an exploded perspective view of the door structure according to the first embodiment. [Diagram 3] FIG. 2 is a perspective view showing an exterior side surface of the base plate portion according to the first embodiment. [Figure 4] FIG. 2 is a cross-sectional view of the door structure according to the first embodiment. [Diagram 5] 10A and 10B are diagrams illustrating operations at the time of a vehicle collision. [Figure 6] 1 is a cross-sectional view showing an initial state (state before a collision) of a door structure according to a first modified example. [Figure 7] FIG. 11 is a cross-sectional view showing a state after a collision of the door structure according to the first modified example. [Figure 8] FIG. 11 is a cross-sectional view showing an initial state (state before a collision) of a door structure according to Modification 2. [Figure 9] FIG. 11 is a cross-sectional view showing a state after a collision of the door structure according to the second modification. [Figure 10] FIG. 11 is a cross-sectional view showing an initial state (state before a collision) of a door structure according to a second embodiment. [Figure 11]FIG. 4 is a perspective view showing a configuration of a restricting portion. [Figure 12] FIG. 11 is a cross-sectional view showing a state after a collision of the door structure according to the second embodiment. [Figure 13] FIG. 11 is a cross-sectional view showing an initial state (state before a collision) of a door structure according to a third embodiment. [Figure 14] FIG. 2 is a diagram illustrating a configuration of a control unit. [Figure 15] FIG. 11 is a cross-sectional view showing a state after a collision of the door structure according to the third embodiment. [Figure 16] FIG. 11 is a diagram illustrating a processing procedure executed by a control unit. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] First Embodiment Hereinafter, a door structure according to an embodiment of the present disclosure will be described with reference to the drawings. Note that each configuration and their combination in each embodiment and each modified example are merely examples, and addition, omission, substitution, and other modifications of configurations are possible as appropriate within the scope of the gist of the present disclosure. The present disclosure is not limited by the embodiments, but is limited only by the claims. Furthermore, each aspect disclosed in this specification can be combined with any other feature disclosed in this specification.

[0020] FIG. 1 is a perspective view of the door structure 1 according to this embodiment, FIG. 2 is an exploded perspective view of the door structure 1 according to this embodiment, FIG. 3 is a perspective view showing the vehicle exterior side of the base plate portion, and FIG. 4 is a cross-sectional view of the door structure. In this embodiment, the up-down direction is also called the Y-axis direction, the left-right direction is also called the X-axis direction, and the front-rear direction is also called the Z-direction. For convenience of explanation of this embodiment, these directions merely exemplify the relative positional relationship of each element in the door structure 1, and are not limited to these directions. For example, the posture when using the door structure 1 is not limited to the direction shown in the figure.

[0021] Fig. 1 shows a door structure 1 provided on the left side of the front seat of a vehicle. The door structure 1 on the right side of the front seat of a vehicle has almost the same configuration except that it is arranged symmetrically compared to Fig. 1, so a description of the same will be omitted. The door structure 1 has a door body 10, a door trim 100 attached to the passenger compartment side of the door body 10, and a door window glass 50.

[0022] The door body 10 is one form of a vehicle structural part that constitutes a vehicle. The door body 10 has an outer panel 11 that forms the outer shell of the vehicle, and an inner panel 12 that is provided on the passenger compartment side of the outer panel 11. The inner panel 12 is disposed at a predetermined distance from the outer panel 11, and defines the passenger compartment side of an internal space 13 that is formed between the outer panel 11 and the inner panel 12. The door body 10 also has a front panel 14 that defines the front side of the internal space 13, and a lower panel 15 that defines the lower side of the internal space 13. 5, an upper panel 16 that defines the upper side of the internal space 13, and a rear panel (not shown) that defines the rear side of the internal space 13. The inner panel 12, the front panel 14, the lower panel 15, the upper panel 16, and the rear panel may be integrally formed by pressing or the like. Each panel 11, 12, 14 to 16 of the door body 10 is formed of metal, for example, a steel plate. The door body 10 has other components such as a latch mechanism that engages with a receiving portion on the vehicle body side to keep the door structure 1 closed when the door structure 1 is closed, a lock mechanism that locks the door structure 1 so that it does not open, and a drive mechanism that opens and closes the door window glass 50, but for convenience, some of the components are omitted in FIGS. 1 to 4.

[0023] The inner panel 12 is provided with an opening (service hole) 121 into which the armrest 30 can be inserted. The front panel 14 is provided with a hinge receiving portion 141, which is connected to the vehicle body via a hinge, thereby mounting the door structure 1 to the vehicle body in an openable and closable manner.

[0024] The door trim 100 is one form of vehicle interior trim. The door trim 100 includes a base plate portion 20, an armrest 30, and a release lever 40.

[0025] The base plate portion 20 is disposed along the passenger compartment side of the door body 10, specifically, along the passenger compartment side of the inner panel 12, the lower panel 15, and the upper panel 16. That is, the base plate portion 20 is an interior material (decorative plate) that covers the passenger compartment side of the door body 10. The base plate portion 20 is provided with an opening 201 penetrating from the passenger compartment side to the passenger compartment side, and as shown in FIG. 3, a support portion 22 that supports the armrest 30 is erected around the opening 201 on the passenger compartment side surface 21 of the base plate portion 20. The support portion 22 is formed in a frame shape so as to surround the opening 201, and the outer end of the armrest 30 is fitted into a fitting hole 23 on the inside of the support portion 22. The fitting hole 23 is extended in a direction from the passenger compartment side of the base plate portion 20 toward the passenger compartment side (X direction in the figure), and is formed so that the armrest 30 can be inserted.

[0026] Further, a joint pin 211 such as a snap fit is provided on the vehicle exterior side surface 21 of the base plate portion 20, and the base plate portion 20 is attached to the door body 10 by fitting this joint pin 211 into a joint hole 120 provided in the inner panel 12 of the door body 10. Although not shown in the figure, the base plate portion 20 may be fastened to the inner panel 12 of the door body 10 by a screw or the like. The release lever 40 is a lever for releasing the engagement by the latch mechanism when the door is opened. In this embodiment, the release lever 40 is provided on the door trim 100, but the release lever 40 may be provided on the door body 10 side.

[0027] The armrest 30 is one form of a protrusion provided to protrude from the base plate portion 20 toward the interior of the vehicle. The armrest 30 of this embodiment has a generally rectangular parallelepiped outer shape, with one end on the vehicle interior protruding from the base plate portion 20 and the other end (exterior end) 34 fitted into a fitting hole 23 of the base plate portion 20 and supported by the support portion 22 of the base plate portion 20. The armrest 30 is configured such that an upper surface 31 thereof is disposed substantially horizontally, allowing a passenger to rest his or her arms on the upper surface 31.

[0028] The armrest 30 is provided with a grip hole 32 extending downward from the upper surface 31 into which an occupant can insert their fingers. For example, when the door is open, the occupant can insert their fingers into the grip hole 32 to grasp the armrest 30 and pull the armrest 30 toward the passenger compartment to close the door. In other words, the armrest 30 also functions as a door handle.

[0029] An operating unit 33 is provided on the upper surface 31 of the armrest 30. The operating unit 33 is, for example, a switch for opening and closing the door window glass 50 and for operating the seat position. Furthermore, an engagement groove 36 that engages with a fragile fixing portion 60 described below is provided on the upper surface 31 of the armrest 30 along the boundary with the interior side surface 24 of the base plate portion 20 and slightly inside the vehicle than the interior side surface 24. The engagement groove 36 is a bottomed slit that is formed to a depth such that when one end of the fragile fixing portion 60 is inserted, the other end of the fragile fixing portion 60 protrudes from the upper surface 31.

[0030] As shown in FIG. 4, an upper portion of the outer end 34 of the armrest 30 is provided with a locking claw 37 that protrudes upward from the upper surface 31. Similarly, a lower portion of the outer end 34 is provided with a locking claw 37 that protrudes downward from the lower surface 35. Meanwhile, a groove 221 into which the locking claw 37 is fitted is provided on the inner wall surface of the support portion 22 of the base plate portion 20. The groove 221 is provided in the extension direction of the fitting hole 23, which is the X direction in the example shown in the figure, and is formed from the outer end of the support portion 22 to the middle of the inner side of the vehicle. When the armrest 30 is inserted into the fitting hole 23 and fitted into the vehicle interior so that the inner end of the armrest 30 protrudes from the inner side surface 24 of the base plate portion 20, the locking claw 37 of the outer end 34 fits into the groove 221 of the support portion 22 and slides within the groove 221. Then, the locking claw 37 hits the groove end 222 on the inside of the vehicle, preventing the armrest 30 from moving toward the inside of the vehicle. As a result, the inside end of the armrest 30 protrudes from the interior side surface 24 of the base plate portion 20, and the armrest 30 is positioned at a predetermined initial position. When the fragile fixing portion 60 is inserted into the engagement groove 36 of the armrest 30 in this state, the upper portion of the fragile fixing portion 60 hits the interior side surface 24 of the base plate portion 20, preventing the armrest 30 from moving toward the outside of the vehicle, and the armrest 30 is fixed to the base plate portion 20. The fragile fixing portion 60 is a fragile member made of, for example, synthetic resin, and is formed so as to break when subjected to a strong load.

[0031] <Operation during vehicle collision> 5 is a diagram for explaining the operation during a vehicle collision. For example, when the door is hit from the side of the vehicle, the armrest 30 comes into contact with the occupant and receives a load in the X direction. When the armrest 30 receives a load in the X direction from the passenger compartment in this way, the fragile fixing portion 60 breaks, and the armrest 30 becomes movable in the retracting direction to retract from the passenger compartment, and moves toward the outside of the vehicle. That is, the armrest 30 is stored in the internal space 13 of the door body 10 and does not protrude from the passenger compartment side surface 24 of the base plate portion 20.

[0032] As a result, in the event of a vehicle collision, the armrest 30 does not hit the occupant locally, but comes into contact with the occupant over a flat surface, dispersing the impact and improving safety in the event of a collision.

[0033] In the example of Figure 5, the armrest 30 is almost completely stored within the interior space 13 during a vehicle collision, but this is not limited to the above. If the armrest 30 protrudes less, the impact during a collision is less likely to be concentrated. Therefore, as long as the armrest 30 moves at least toward the outside of the vehicle from its initial position, a portion of it may protrude from the interior side surface 24 of the base plate portion 20.

[0034] Furthermore, if the fragile fixing portion 60 breaks and the armrest 30 moves, the armrest 30 can be returned to its initial position and the fragile fixing portion 60 can be reinserted into the engagement groove 36 and re-fixed, allowing the armrest 30 to be used repeatedly.

[0035] As described above, the armrest 30 is stored within the door structure 1 when a load is applied toward the outside of the vehicle during a vehicle collision. On the other hand, when the armrest 30 is used normally, for example when an occupant places their arm on the upper surface 31 of the armrest 30, the load acts on the armrest 30 from above downwards. The armrest 30 has an outer end 34 supported by the support portion 22, and the load exerted when the arm is placed on it does not act as a shear force on the weak fixing portion 60, so the weak fixing portion 60 does not break and the armrest 30 does not move. Also, when an occupant places their arm on the upper surface 31 of the armrest 30, the load acts on the armrest 30 from above downwards. Since the outer end 34 of the armrest 30 is supported by the support portion 22, the load exerted when the arm is placed on it does not act as a shear force on the weak fixing portion 60, so the weak fixing portion 60 does not break and the armrest 30 does not move. When the door is closed by inserting a finger into the grab hole 32 of the armrest 30 and pulling the armrest 30 toward the passenger compartment, the load is transmitted to the base plate portion 20 by the locking claw 37 of the armrest 30 abutting against the groove end portion 222, and the locking claw 37 does not break the fragile fixing portion 60. Therefore, in normal use of the armrest 30, the fragile fixing portion 60 does not break and the armrest 30 does not move, but if the armrest 30 receives a load in the outward direction (X direction) during a vehicle collision, the fragile fixing portion 60 breaks and moves to the outside of the vehicle. Therefore, the strength of the locking claw 37 is sufficiently greater than that of the fragile fixing portion 60.

[0036] In this embodiment, the door trim 100 of the front seat has been described, but the above configuration may be applied to the door trim of the rear seat. Also, the vehicle interior trim of the present disclosure is not limited to the door trim, but may be applied to the trim (outfit) on the side of the rear seat in a two-door coupe, for example. That is, the trim may be provided with an armrest 30 and configured to move to the outside of the vehicle in the event of a collision.

[0037] <Variation 1> FIG. 6 is a cross-sectional view showing an initial state (pre-crash state) of a door structure 1A according to Modification 1, and FIG. 7 is a cross-sectional view showing a state of the door structure 1A according to Modification 1 after a crash.

[0038] The door structure 1A of this modification is different from the above-described embodiment in that a magnetic attraction member 70 is provided on the outer end surface of the armrest 30, but the other configurations are the same. For this reason, the same elements as those in the above-described embodiment are denoted by the same reference numerals, and a repeated description will be omitted.

[0039] The magnetic attraction member 70 is a member having magnetism, and is arranged on the end surface of the armrest 30 on the outer side of the vehicle so as to face the outer panel 11 of the door body 10. The magnetic attraction member 70 is formed, for example, from a permanent magnet or a synthetic resin containing a magnetic material. The configuration in which the armrest 30 is arranged at the treatment position and fixed to the base plate portion 20 by the fragile fixing portion 60 is the same as that described above, as shown in FIG. 6.

[0040] When the armrest 30 receives a load due to a side collision with the door of the vehicle, if the fragile fixing portion 60 breaks and the armrest 30 becomes movable, the armrest 30 moves to the outside of the vehicle as shown in Fig. 7. At this time, the magnetic attraction member 70 is attracted to the outer panel 11, which is a magnetic metal panel (e.g., a steel plate), by the magnetic force, and is attracted to the outer panel 11.

[0041] In this manner, according to the configuration of this modified example, the armrest 30 that becomes movable in the event of a collision actively moves to the outside of the vehicle, thereby further improving safety. If the outer panel 11 is made of a material that is not attracted to the magnetic attraction material 70, a ferromagnetic metal plate such as stainless steel can be disposed on the inside of the outer panel 11 (the portion facing the magnetic attraction material 70).

[0042] <Variation 2> Fig. 8 is a cross-sectional view showing the initial state (state before collision) of the door structure 1B according to the modified example 2, and Fig. 9 is a cross-sectional view showing the state of the door structure 1B according to the modified example 2 after the collision. The door structure 1B of this modified example is different from the above-mentioned embodiment in that the armrest 30B is filled with a cushioning material 382 having thixotropy, but the other configurations are the same. For this reason, the same elements as those in the above-mentioned embodiment are given the same reference numerals, and repeated explanations will be omitted.

[0043] The armrest 30B has a buffer section 38 at its tip on the vehicle interior side. The buffer section 38 has a generally rectangular parallelepiped shape, and has an outer cover 381 that defines the six outer faces of the rectangular parallelepiped, for example, the top and bottom, left and right, and front and rear, and a buffer material 382 that fills an internal space 380 defined by the outer cover 381. The outer cover 381 is a flexible member made of synthetic resin or the like. Since the buffer 38 is easily deformed by external stress, the shape of the buffer section 38 is maintained mainly by the buffer material 382 filled in the internal space 380. The buffer material 382 is made of a material having thixotropy, and its properties change when it is subjected to stress. Specifically, when it is not subjected to stress, the buffer material 382 is a plastic solid such as a gel, and when it is subjected to stress, the buffer material 382 becomes closer to a liquid such as a sol, and its viscosity changes. Examples of thixotropic materials include bentonite and synthetic smectite.

[0044] In this way, in the armrest 30B of this modification, the buffer part 38 at the tip portion has thixotropy, so that the buffer part 38 is solid during normal use, but when an occupant comes into contact with the armrest 30B during a vehicle collision and stress is applied to the buffer material 382, ​​the viscosity of the buffer material 382 decreases, causing the buffer part 38 to deform and reduce the impact on the occupant. This enables the armrest 30B to reduce the impact on the occupant, further improving reliability.

[0045] 8 and 9 show an example in which the buffer portion 38 is disposed at the tip portion of the armrest 30B, but this is not limiting, and the buffer portion 38 may be disposed so as to cover the upper surface, front and rear surfaces, etc. of the armrest 30B. The buffer portion 38 is not limited to a material having thixotropy, and may be formed of a material having elasticity and may absorb impacts by using this elasticity.

[0046] Second Embodiment Fig. 10 is a cross-sectional view showing the initial state (state before collision) of the door structure 1C according to the second embodiment, Fig. 11 is a perspective view showing the configuration of the restricting portion 250, and Fig. 12 is a cross-sectional view showing the state of the door structure 1C according to the second embodiment after collision. The door structure 1C of this embodiment is different from the above-mentioned embodiment in that it has a restricting portion 250 that restricts the movement of the armrest 30C and a link portion that releases the restriction by the restricting portion 250, but the other configurations are the same. For this reason, the same elements as those in the above-mentioned embodiment are given the same reference numerals, and repeated explanations will be omitted.

[0047] Compared to the base plate portion 20 in the above-described embodiment, the base plate portion 20C has a hinge 28 that supports the armrest 30C instead of the support portion 22. The hinge 28 connects the outer surface 21 of the base plate portion 20C and the upper rear end of the armrest 30C, and supports the armrest 30C rotatably around a rotation shaft 281.

[0048] Further, on the vehicle exterior side surface 21 of the base plate portion 20C, a flat support plate portion 25 is provided on the lower edge of the opening 201. The support plate portion 25 is provided with a pin insertion hole 251 penetrating in the vertical direction for inserting the lock pin 26 therethrough.

[0049] The lock pin 26 is a cylindrical member having a head 261 at one end which is larger in diameter than the other parts, and a hole 262 for preventing it from coming loose at the other end which penetrates perpendicular to the longitudinal direction (X-axis direction).

[0050] As shown in FIG. 10, in a cross section (XY plane) perpendicular to the rotation axis 281, the surface from the underside to the inside of the vehicle is arc-shaped with the rotation axis 281 as the center, and the outer shape of this cross section is roughly fan-shaped.

[0051] 10, the armrest 30C protrudes from the base plate portion 20C toward the vehicle interior, and its initial position is a position where the top surface 31 is approximately horizontal. In this state, the lock pin 26 is inserted into the pin-through hole 251 from below the support plate portion 25, and the snap pin 27 is inserted into the retaining hole 262 of the lock pin 26 protruding from the upper side of the support plate portion 25. This causes the lock pin 26 to abut against the rear end surface of the armrest 30C, preventing the armrest 30C from rotating toward the vehicle exterior. In this embodiment, the support plate portion 25, the lock pin 26, and the snap pin 27 form a restricting portion 250.

[0052] When the armrest 30 is placed in the initial position, an engagement groove 39 is provided on the underside of the armrest 30C along the boundary with the vehicle interior side surface 24 of the base plate portion 20C and slightly on the vehicle interior side of the vehicle interior side surface 24. The engagement groove 39 is a bottomed slit formed to a depth such that when one end of the fragile fixing portion 60 is inserted, the other end of the fragile fixing portion 60 protrudes from the underside 35. When the fragile fixing portion 60 is inserted into the engagement groove 39, the lower portion of the fragile fixing portion 60 is fixed to the vehicle interior side surface 24 of the base plate portion 20C, thereby preventing the armrest 30 from moving toward the vehicle interior side. The strength of the lock pin 26 is greater than the strength of the fragile fixing portion 60.

[0053] A lever support portion 122 is erected on the outer surface of the inner panel 12 of the door body 10. A swing shaft 122A of a lever portion 123 is provided at the tip of the lever support portion 122, and the lever portion 123 is swingably supported. An inner end 123A of the lever portion 123 is connected to a snap pin 27 via a wire 124, and an outer end 123B is disposed on the outer panel 11 side. A mechanism constituted by the lever portion 123, the lever support portion 122 that swingably supports the lever portion 123, and the like is one form of a link portion that releases the restriction by the restricting portion 250 by moving or deforming in association with the deformation of the outer panel 11 as described later.

[0054] As shown in FIG. 12, when the outer panel 11 is deformed toward the inside of the vehicle due to a collision with the door from the side of the vehicle, the outer end 123B of the lever portion 123 moves toward the inside of the vehicle. Then, with the movement of the outer end 123B, the lever portion 123 swings about the swing shaft 122A, and the inner end 123A moves in a direction away from the lock pin 26, and the snap pin 27 is pulled out of the lock pin 26 via the wire 124. As a result, the lock pin 26 is no longer retained, and the lock pin 26 falls under its own weight, and the engagement with the rear end surface of the armrest 30C is released. When the passenger leans against the armrest 30C due to the impact, the fragile fixing portion 60 breaks, and the armrest 30C becomes rotatable toward the outside of the vehicle about the rotation shaft 281. As a result, the armrest 30C rotates about the rotation shaft 281 and is stored in the door structure 1 as shown in FIG. 12.

[0055] As a result, in the event of a vehicle collision, the armrest 30C does not hit the occupant locally but comes into contact with the occupant on a flat surface, dispersing the impact and improving safety during the collision. In this modified embodiment, the vehicle interior end 123A of the lever portion 123 moves with the deformation of the outer panel 11 to release the restriction by the restricting portion 250, but the present invention is not limited to this. The restriction by the restricting portion 250 may be released by the deformation of the link portion with the deformation of the outer panel 11. For example, the link portion may support the lock pin 26 arranged at a position for restricting engagement with the armrest 30C, and the link portion breaks (deforms) with the deformation of the outer panel 11 due to a collision, causing the lock pin 26 to come off from the position, thereby releasing the restriction on movement.

[0056] <Third embodiment> Fig. 13 is a cross-sectional view showing the initial state (state before collision) of a door structure 1D according to the third embodiment, Fig. 14 is a diagram showing the configuration of a control unit, and Fig. 15 is a cross-sectional view showing the state of the door structure 1D according to the third embodiment after a collision. The door structure 1D of this embodiment is different from the first embodiment described above in that it is provided with a detection unit 80 that detects a collision and a control unit 90 that controls a restriction unit 25D that restricts the movement of the armrest 30 according to the detection result, but the other configurations are the same. For this reason, the same elements as those in the above-mentioned embodiment are given the same reference numerals, and repeated explanations will be omitted.

[0057] The detection unit 80 is an impact sensor for detecting a collision with the door structure 1D from the side of the vehicle. Note that the detection unit 80 is not limited to a sensor for detecting an impact received by the door structure 1D. Alternatively, the detection unit 80 may detect information about the surroundings in order to predict a collision with the door structure 1. For example, the detection unit 80 may include sensing means such as an acceleration sensor, a gyro sensor (angular velocity sensor), a positioning device, a camera, a radar, a LIDAR (Light Detection and Ranging, Laser Imaging Detection and Ranging), or a three-dimensional scanner. Examples of the positioning device include a satellite positioning system such as a GPS (Global Positioning System). Radar and The LIDAR and GPS are used to determine the distance to objects around the vehicle and the speed at which those objects are moving.

[0058] The restricting portion 25D is attached to the outer surface (upper and lower surfaces in the illustrated example) of the support portion 22 near the rear end of the armrest 30 arranged in the initial position. The restricting portion 25D has an electric actuator (driving portion) 253 and a rod portion (engaging portion) 252. The actuator 253 drives the rod portion 252 between a state in which the rod portion 252 is advanced into the fitting hole 23 and a state in which the rod portion 252 is retracted from the fitting hole 23 in response to a control signal from the control portion 90. When the restricting portion 25D brings the rod portion 252 into the fitting hole 23, the rod portion 252 engages with the rear end surface of the armrest 30 arranged in the initial position, and restricts the movement of the armrest 30 in the retracting direction. In addition, the restricting portion 25D switches to a disengaged state in which the engagement between the rear end surface of the armrest 30 and the rod portion 252 is released by causing the rod portion 252 to retract from the engagement hole 23, thereby enabling the armrest 30 to move. The strength of the actuator 253 and the rod portion 252 is greater than that of the weak fixing portion 60 fixed to the vehicle interior side surface.

[0059] The control unit 90 acquires the detection result by the detection unit 80, and when the detection result satisfies a predetermined condition, controls the restriction unit 25D to release the engagement by the rod unit 252, thereby allowing the armrest 30 to be moved. FIG. 14 is a diagram showing the configuration of the control unit 90. The control unit 90 includes a processor 91, a storage unit 92, and an input / output unit 93. The processor 91 comprehensively executes various types of arithmetic processing in the control unit 90. The processor 91 is an arithmetic processing means such as a CPU (Central Processing Unit), a DSP (Digital Signal Processor), or an FPGA (Field-Programmable Gate Array).

[0060] The storage unit 92 includes, for example, a main storage unit 921 and an auxiliary storage unit 922. The main storage unit 921 includes a main storage unit such as a RAM (Random Access Memory) or a ROM (Read Only Memory), and stores information to be processed by the processor 91, for example. The main storage unit 921 may be formed integrally with the processor 91.

[0061] The auxiliary storage unit 922 is composed of a storage medium such as a volatile memory such as a RAM, a non-volatile memory such as a ROM, an EPROM (Erasable Programmable ROM), a hard disk drive (HDD, Hard Disk Drive), or a removable medium. The removable medium is, for example, a Universal Serial Bus (USB) memory or a memory card, which is an externally mountable and computer-readable recording medium.

[0062] The auxiliary storage unit 922 can store an operating system (OS), various programs, various tables, various databases, user data, and the like, for executing the operations of the control unit 90.

[0063] The input / output unit 93 is, for example, an interface that inputs information (detection results, etc.) from the detection unit 80 and outputs information (control signals, etc.) to the detection unit 80 or other devices. The input / output unit 93 may also be a communication module that inputs (receives) information from other devices and outputs (transmits) information to other devices. Furthermore, the input / output unit 93 may be a user interface that inputs operation information by a user using an operation button, a touch panel, etc., and outputs (displays, outputs sounds, etc.) to the user using a display, a speaker, etc.

[0064] ≪Operation≫ Fig. 16 is a diagram showing a processing procedure executed by the control unit 90. The control unit repeatedly executes the processing in Fig. 16 while power is being supplied, for example, when the accessory power source of the vehicle is turned on, or when a start-up instruction is received.

[0065] In step S10, the control unit 90 acquires a detection result from the detection unit 80. For example, the control unit 90 acquires a detection value from an acceleration sensor (shock sensor) and detects a captured image of the surroundings from a camera. In addition, information such as the position, speed, and moving direction of an object is not limited to being acquired from a camera, but may be acquired from a radar, a LIDAR, a three-dimensional scanner, or a combination of these.

[0066] In step S20, the control unit 90 analyzes the state of the door structure 1 and the state of the surroundings of the door structure 1 based on the detection result of the detection unit 80 acquired in step S10. For example, the control unit 90 obtains the value of acceleration detected by the detection unit 80 and the rate of change of acceleration per unit time (jerk). The control unit 90 also performs image processing on the captured image taken by the camera to extract objects present around the vehicle and obtain the position, moving direction, moving speed, etc. of the object as surrounding information. Note that a method for obtaining the position, speed, moving direction, etc. of surrounding objects from the captured image can use known technology, and therefore a detailed description thereof will be omitted.

[0067] In step S30, the control unit 90 determines whether or not to release the restraint of the armrest 30 by the regulating unit 25D depending on whether or not the information indicating the state of the door structure 1 and the state of the surroundings of the door structure 1 obtained in step S20 satisfies a predetermined condition. For example, when the door structure 1 is hit, the collision is detected as a sudden change in acceleration, and the control unit 90 determines (positive determination) that the door structure 1 has received an impact and releases the regulating unit 25D when the jerk obtained in step S20 exceeds a predetermined threshold. In addition, the control unit 90 makes a positive determination when the position of the vehicle and the position of the surrounding objects after a predetermined time coincide with each other, that is, when it is predicted that the object will collide with the vehicle, based on the position, moving direction, moving speed, etc. of the surrounding objects obtained in step S20. Note that these conditions and thresholds may be set by the operation of the occupant.

[0068] If the determination in step S30 is affirmative, the control unit 90 proceeds to step S40 and controls the restricting unit 25D to retract the rod portion 252 and release the engagement between the armrest 30 and the rod portion 252. This allows the armrest 30 to move, and when the armrest 30 comes into contact with an occupant and receives a load in the X direction, the weak fixing portion 60 breaks due to this load and moves to the outside of the vehicle as shown in Fig. 15. That is, the armrest 30 is stored within the internal space 13 of the door body 10 and does not protrude from the inside surface 24 of the base plate portion 20.

[0069] It should be noted that if a negative determination is made in step S30, that is, the information indicating the user's state and the surrounding state does not satisfy the predetermined condition, the processing in FIG. 16 is terminated.

[0070] Thus, according to this embodiment, in the event of a vehicle collision, the armrest 30 can be stored within the door structure 1, so that the armrest 30 does not hit the occupant locally but comes into contact with the occupant on a flat surface, dispersing the impact and improving safety in the event of a collision.

[0071] In this embodiment, the frangible fixing portion 60 may not be used before activation, and the armrests 30, 30B, 30C, and 30D may be prevented from moving toward the inside or outside of the vehicle only by the engagement claw 37, the lock pin 26, or the rod portion 252. [Explanation of symbols]

[0072] 1~1D Door Structure 10 Door body 11 Outer Panel 12 Inner Panel 13. Interior Space 14 Front Panel 15 Lower Panel 16 Upper Panel 20, 20C, 20D Base plate 21 Exterior side 22 Support part 23 Engagement hole 24 Interior side 25 Support plate part 26 Lock pin 27 Snap pin 28 Hinge 30~30D Armrest 31 Top side 36 Engagement groove 37 Locking claw 38 Buffer section 40 Release lever 50 Door window glass 60 Fragile fixed part 70 Magnetic attraction member 80 Detection unit 90 Control section 91 Processor 92 Memory section 93 Input / output section 100 Door Trim 121 Opening (service hole) 122 Lever support part 122A Swing shaft 123 Lever part 123A Inside end of the car 123B Outer edge 124 Wire

Claims

1. a base plate portion disposed along a vehicle structure constituting a vehicle and covering a vehicle interior side of the vehicle structure; a protrusion that is disposed at an initial position with respect to the base plate portion so as to protrude from the base plate portion toward the vehicle interior, and is attached to the base plate portion so as to be movable from the initial position in a retraction direction when a load is applied from the vehicle interior side; an engagement portion that is engaged with the protrusion disposed at the initial position and that is capable of restricting movement of the protrusion in the retraction direction in an engaged state; a drive unit capable of switching the engagement portion between the engaged state and a disengaged state in which the engagement is released by driving the engagement portion; Vehicle interior trim having

2. a weak fixing portion that fixes the protrusion to the base plate portion when the protrusion is in the initial position is provided at a boundary between the protrusion and the base plate portion, The vehicle interior trim according to claim 1 , wherein the weak fixing portion breaks when the protruding portion receives a load from the vehicle interior side, thereby allowing the protruding portion to move relative to the base plate portion.

3. a magnetic attraction member having magnetic properties is provided on a surface of the protruding portion opposite to a surface protruding into the vehicle interior, When the protrusion is in the initial position, the magnetic attraction member faces a metal panel that constitutes the vehicle structure or is attached to the vehicle structure, and is disposed at a distance from the metal panel; 3. The vehicle interior trim according to claim 1, wherein the magnetic attraction member is attracted to the metal panel when the protrusion is movable.

4. 4. The vehicle interior trim according to claim 1, wherein the inside of the protruding portion is filled with a buffer material having thixotropy.

5. A vehicle interior trim according to any one of claims 1 to 4; The vehicle structure includes a door body having an outer panel of the door of the vehicle and an inner panel to which the vehicle interior trim is attached; A door structure comprising:

6. A vehicle interior trim according to any one of claims 1 to 4; The vehicle structure includes a door body having an outer panel of the door of the vehicle and an inner panel to which the vehicle interior trim is attached; a detection unit that detects information indicating that the door has been hit or information about the surroundings of the vehicle for predicting the collision; a control unit that acquires a detection result by the detection unit, and switches the engagement unit from the engaged state to the disengaged state by controlling the drive unit when the detection result satisfies a predetermined condition; A door structure comprising:

Images