JP3690204B2 - Vehicle shock mitigation structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an impact mitigation structure for a vehicle, and more particularly, to a pedal device for a vehicle such as an accelerator pedal or a brake pedal operated by a passenger's foot.
[0002]
[Prior art]
For example, as shown in FIG. 20 (see Japanese Patent Laid-Open No. 10-305740), for example, a conventional shock-reducing structure for a vehicle such as an automobile, particularly, an accelerator pedal or a brake pedal operated by a passenger's foot is known. ).
[0003]
In this conventional example, an airbag 6 is provided on the back side of the pedal 4a, and when the vehicle collides, the airbag 6 is inflated and deployed in the vehicle width direction (left and right as viewed from the occupant), thereby placing the airbag 6 on the pedal 4a. Even if the occupant's foot a moves due to the impact or inertia caused by the collision of the vehicle, it is protected by the airbag 6 without falling on the vehicle body floor 1.
[0004]
Further, the impact of entering the sole from the vehicle body panel (toe board) 2 or the like is mitigated by the energy absorption effect of the airbag 6.
[0005]
[Problems to be solved by the invention]
However, according to the conventional structure, the airbag 6 that bulges and deploys at the time of a vehicle collision is deployed from the back side of the pedal 4a in the direction opposite to the occupant's foot a (the back side of the pedal). Therefore, for example, as shown in FIG. 21, the vehicle body panel (toe board) 2 is deformed and moved rearward as the master back of the brake disposed in front of the vehicle moves rearward in the event of a frontal collision of the vehicle. If the vehicle body panel (toe board) 2 and the pedal arm 4b directly interfere with each other, even if the airbag 6 bulges and deploys, the impact is transmitted to the occupant's sole through the pedal arm 4b. There was a problem that the relaxation effect could not be expected. Therefore, it is necessary to take measures for the layout of the pedal arm 4b.
[0006]
Further, when the toe a slides down from the pedal 4a, the ankle 6 may be twisted due to the elasticity of the airbag 6 although it is supported by the airbag 6, and tuning with careful attention to the airbag 6 itself is also possible. It was necessary.
[0007]
Therefore, the present invention provides an impact mitigation structure for a vehicle that can be expected to have an impact mitigation effect regardless of the form of interference between a vehicle body panel and a pedal when a vehicle collides.
[0008]
[Means for Solving the Problems]
According to the first aspect of the present invention, in the pedal disposed at the foot of the occupant and operated by the foot, the pedal is at least two of a first plate facing the occupant side and a second plate disposed on the back side thereof. The air bag is sandwiched between the plurality of plates, and the air bag is inflated or deployed when the vehicle collides.
[0009]
In the invention of claim 2, the pedal of claim 1 is formed in a size that substantially covers the entire sole of the occupant, and its lower end is rotatably attached to the vehicle body floor below the pedal. It is characterized by having.
[0010]
According to a third aspect of the present invention, an inflator for inflating or deploying the airbag according to the first and second aspects is provided on the back side of the second plate of the pedal, and a hole penetrating the second plate from the back side. And a jet port for injecting the gas jetted from the inflator into the airbag is attached to the airbag via a hole in the second plate.
[0011]
According to a fourth aspect of the present invention, the first plate according to the first and second aspects is formed wider than the second plate, and the airbag is exposed from the second plate so that the first plate and the first plate In addition to being arranged between two plates, the jet port for injecting the gas of the inflator is attached to an exposed portion of the airbag.
[0012]
In the fifth aspect of the present invention, a link member that transmits the stepping operation of the occupant to the power control device is connected to the first plate side of the pedal according to any one of the first to fourth aspects, and the pedal is depressed to depress the pedal. It is characterized in that an accelerator operation is performed via a link member.
[0013]
In a sixth aspect of the present invention, a link member is connected to the second plate side of the pedal according to any one of the first to fourth aspects to transmit an occupant's stepping operation to the brake device, and the link is depressed by depressing the pedal. The brake is operated through the member.
[0014]
The invention according to claim 7 is characterized in that the airbag according to claims 1 to 6 is greatly inflated or deployed on the occupant's heel side.
[0015]
The invention according to claim 8 is characterized in that the airbag according to any one of claims 1 to 7 is expanded or deployed in a wider range than the pedal as viewed from the front of the pedal.
[0016]
In invention of Claim 9, while providing the 1st plate and 2nd plate of the pedal of Claims 1-8 so that both may move, when the air bag expands or expands, A stopper is provided so that the movable amount of the second plate is smaller than the movable amount of the first plate.
[0017]
According to a tenth aspect of the present invention, the second plate according to any one of the first to ninth aspects is characterized in that a relief hole is provided so as to allow only a part of the volume of the airbag to be deployed. .
[0018]
【The invention's effect】
According to the first aspect of the present invention, the pedal is composed of a plurality of plate members composed of at least two plates, the first plate facing the occupant side and the second plate arranged on the back side thereof. Since the airbag is sandwiched between the two plates so that the airbag is inflated or deployed when the vehicle collides, the pedal is separated into the first plate and the second plate when the vehicle collides. When the airbag is inflated or deployed, the impact force to the occupant's sole can be absorbed and relaxed.
[0019]
Moreover, even if the vehicle body panel below the pedal is deformed or retracted in the event of a vehicle collision, the airbag always exists between the sole of the occupant and the vehicle body panel. It is possible to expect an impact relaxation effect.
[0020]
In addition, since the foot of the occupant is placed on the airbag via the first plate, the reaction force from the airbag can be dispersed by the first plate, so that an impact mitigation effect is further expected. be able to.
[0021]
In addition, since the occupant's toes are on the first plate in this way, the possibility that the ankles twist may be reduced even when a slightly eccentric load is applied to the toes.
[0022]
According to the second aspect of the present invention, in addition to the effect of the first aspect, the pedal is formed in a size that substantially covers the entire sole of the occupant, and the lower end of the pedal is rotated to the vehicle body floor below the pedal. Since it is movably attached, there is no fear that the toes slip off from the pedal even if the position of the toes moves slightly due to the impact or inertia at the time of collision of the vehicle.
[0023]
According to the third aspect of the present invention, in addition to the effects of the first and second aspects, an inflator for inflating or deploying the airbag is provided on the back side of the second plate of the pedal, and the second plate is provided with the inflator. A hole penetrating from the back side is provided, and a spout for injecting the gas ejected from the inflator into the airbag is attached to the airbag via the hole of the second plate. The airbag can be inflated or deployed uniformly.
[0024]
According to the invention of claim 4, in addition to the effects of claims 1 and 2, the first plate is formed wider than the second plate, and the airbag is exposed from the second plate to Since the jet port for injecting the gas of the inflator is attached to the exposed portion of the airbag while being disposed between the first plate and the second plate, the airbag is inflated or deployed at the time of a collision. First, since the portion that extends beyond the second plate is deployed, the pressure at the initial deployment of the airbag can be absorbed, and the impact input to the occupant's sole can be kept small.
[0025]
According to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects, a link member that transmits an occupant's stepping operation to the power control device is connected to the first plate side of the pedal. When the airbag is deployed during a vehicle collision, the deployment force of the airbag is opposite to the pedal depression direction with respect to the first plate. Because it acts in the direction, even if the occupant is not aware of the collision, or even if the pedal is depressed for some reason, the accelerator operation is released against the pedal depressing operation and the forward movement of the vehicle after the collision is suppressed. Can do.
[0026]
According to the sixth aspect of the present invention, in addition to the effects of the first to fourth aspects, a link member that transmits an occupant's stepping operation to the brake device is connected to the second plate side of the pedal. Since the brake is operated via the link member by depressing the pedal, when the airbag is deployed at the time of a vehicle collision, the deployment force of the airbag is applied to the second plate when the occupant is depressing the pedal. Therefore, when the occupant is fully depressing the pedal, the pedal depressing force is maintained, and even when the pedal depressing force is insufficient, by assisting this, The forward movement of the vehicle can be suppressed.
[0027]
According to the seventh aspect of the present invention, in addition to the effects of the first to sixth aspects, since the airbag is greatly inflated or deployed on the heel side of the occupant, the ankle of the occupant can be prevented from warping. Can do.
[0028]
According to the eighth aspect of the present invention, in addition to the effects of the first to seventh aspects, since the airbag is inflated or deployed in a wider range than the pedal when viewed from the front of the pedal, the airbag protrudes from the pedal. The impact can be mitigated even in the part where the crack is present.
[0029]
According to the ninth aspect of the invention, in addition to the effects of the first to eighth aspects, the first plate and the second plate of the pedal are both movable when the airbag is inflated or deployed. Since the stopper is provided so that the movable amount of the second plate is smaller than the movable amount of the first plate, the first plate is stepped on by the occupant when the airbag is inflated or deployed in the event of a collision. In this case, since the second plate side first moves until it is regulated by the stopper, the pressure at the initial stage of airbag deployment is absorbed by the movement of the second plate, and the impact input to the occupant's sole is kept small. be able to.
[0030]
According to the tenth aspect of the present invention, in addition to the effects of the first to ninth aspects, the second plate is provided with a relief hole that allows only a part of the volume of the airbag to be deployed. Therefore, when the airbag is inflated or deployed at the time of a collision, the airbag is first deployed from the portion corresponding to the relief hole, so that the pressure at the initial stage of the airbag is absorbed by the portion corresponding to the relief hole, to the foot of the passenger The impact input can be kept small.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
[0032]
1 and 2 show an embodiment of an automobile impact mitigation structure to which the present invention is applied. In particular, the first embodiment applies the present invention to a brake pedal disposed at the foot of a driver's seat of an automobile. It is applied.
[0033]
FIG. 1 is a perspective view showing the structure of a pedal according to the present embodiment. Reference numeral 101 denotes a pedal composed of a first plate 101a facing the occupant side and a second plate 101b arranged on the back side. An airbag 102 is sandwiched between the first plate 101a and the second plate 101b.
[0034]
The inner surfaces of the first plate 101a and the second plate 101b described above are bonded to the surface (fabric) of the airbag 102 with an adhesive or the like so as to be integrated. In this state, the edge of the first plate 101a and the edge of the second plate 101b are bonded with an adhesive or the like, and are separated by a certain amount of tensile force acting between them.
[0035]
An inflator for inflating or deploying the airbag 102 in the event of a vehicle collision is attached to the back side of the second plate 101b.
[0036]
The second plate 101b is provided with a hole 113 penetrating from the back side thereof, and an outlet 103a for injecting gas injected from the inflator 103 into the airbag 102 is provided in the hole 113 of the second plate 101b. It is attached to the airbag 102 via
[0037]
The pedal 101 is formed to have a size that substantially covers the entire sole of the occupant, and a lower end 104 of the pedal 101 is rotatably attached to the vehicle body floor 105 below the pedal. As shown in FIG. 2, the pedal 101 is depressed with the hinge 104 as a fulcrum.
[0038]
Reference numeral 106 denotes a sensor that detects a vehicle collision as a deceleration waveform, and the sensor 106 is installed in a vehicle body part that is not deformed when the vehicle collides. The vehicle deceleration waveform detected by the sensor 106 is sent to the controller 107 for processing, and when it is predicted that the vehicle body panel 108 at the foot of the passenger will be deformed or retracted due to a vehicle collision, a signal for deploying the airbag 102 is sent. This is sent to the inflator 103.
[0039]
Here, the effect | action at the time of the collision of a vehicle is demonstrated.
[0040]
FIG. 3 shows a state in which the vicinity of the passenger's feet is deformed when the vehicle collides with the front.
[0041]
Until the collision occurs, that is, in a normal state, as shown in FIG. 3A, the first plate 101a and the second plate 101b of the pedal 101 are integrally joined by the adhesive as described above.
[0042]
When the vehicle collides, a gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIG.
[0043]
According to the structure of the above embodiment, the pedal 101 is composed of the first plate 01a facing the occupant side and the second plate 101b disposed on the back side, and the plurality of plates 101a and 101b. Since the airbag 102 is sandwiched between the two and the airbag 102 is inflated or deployed when the vehicle collides, the pedal 101 is separated into the first plate 101a, the second plate, and 101b when the vehicle collides. Then, the airbag 102 is inflated or deployed from that time, so that the impact force to the occupant's sole can be absorbed and relaxed.
[0044]
Moreover, even if the vehicle body panel 108 below the pedal is deformed and retracted during a vehicle collision, the airbag 102 is always present between the sole of the occupant and the vehicle body panel 108. An impact mitigating effect can be expected regardless of the form of interference.
[0045]
In addition, since the occupant's sole is placed on the airbag 102 via the first plate 101a, the reaction force from the airbag 102 can be dispersed by the first plate 101a. Can be expected further.
[0046]
Further, as shown in FIG. 4 (a), when the occupant's feet are directly restrained by the airbag 102, the ankle may be twisted depending on the direction of the load, but this embodiment shown in FIG. 4 (b). As described above, since the occupant's toes are on the first plate 101a, the possibility of the ankle twisting can be reduced even if a slightly eccentric load is applied to the toes.
[0047]
In particular, according to this embodiment, in addition to these effects, the pedal 101 is formed to have a size that substantially covers the entire sole of the occupant, and the lower end of the pedal 101 is rotated by a hinge 104 on the vehicle body floor 108 below the pedal. Since it is mounted so as to be movable, even if the position of the toe moves slightly due to the impact or inertia at the time of the collision of the vehicle, there is no fear that the toe slips off from the pedal 101.
[0048]
An inflator 103 for inflating or deploying the airbag 102 is provided on the back side of the second plate 101b of the pedal 101, and a hole 113 penetrating from the back side is provided on the second plate 101b. Since the jet port 103a for injecting the gas to be injected into the airbag 102 is attached to the airbag 102 through the hole 113 of the second plate 102, the airbag 102 can be reliably and uniformly provided with a simple structure. Can be inflated or deployed.
[0049]
FIG. 5 shows a second embodiment of the present invention. In this embodiment as well, the pedal 101 includes a first plate 101a and a second plate 101b, and an air bag 102 is sandwiched between them. The configuration is the same as that of the first embodiment.
[0050]
In particular, in the second embodiment, as shown in FIG. 5, a link member 109 is connected to the second plate 101b side of the pedal 101 to transmit an occupant's stepping operation to a brake device (not shown). The brake is actuated via the link member 109 by stepping on.
[0051]
Moreover, in the second embodiment, unlike the first embodiment, the pedal 101 is not a hinge 104 but a bracket disposed inside the vehicle instrument panel 110 via a link member 109 connected to the second plate 101b side. 110a is suspended on the vehicle instrument panel 110, and when the occupant performs a braking operation as shown in FIG. 11B, the pedal 101 is depressed with the bracket 110a as a fulcrum.
[0052]
This is a suspension system often used for brake pedals of automobiles, particularly passenger cars, and of course, sufficient space is secured so as not to interfere with the floor panel 105 and the vehicle body panel 108 even when the pedal 101 is fully depressed. Needless to say that it is.
[0053]
Here, the effect | action at the time of the collision of a vehicle is demonstrated.
[0054]
The operation after the collision is the same as that of the first embodiment. Until the collision occurs, that is, in the normal state, as shown in FIGS. 5A and 5B, the first plate 101a and the second plate of the pedal 101 are used. 101b is integrally joined.
[0055]
When the vehicle collides, gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIG.
[0056]
According to the structure of the second embodiment described above, in addition to obtaining the same effect as in the case of the first embodiment, such as mitigating the impact on the sole, A link member 109 is connected to the second plate 101b side of the pedal 101 to transmit an occupant's stepping operation to a brake device (not shown), and the brake is operated via the link member 109 by stepping on the pedal 101. Therefore, when the airbag 102 is deployed at the time of a vehicle collision, the deployment force of the airbag 102 acts on the second plate 101b in the pedal depressing direction. Therefore, when the occupant depresses the pedal 101, In addition to maintaining the pedal effort, and assisting in the case where the pedal effort is insufficient, the forward movement of the vehicle after a collision can be suppressed. That.
[0057]
FIG. 6 shows a third embodiment of the present invention. In this embodiment as well, the pedal 101 is composed of a first plate 101a and a second plate 101b, and an air bag 102 is sandwiched between them. The configuration is the same as that of the first embodiment, and the same structure as that of the first embodiment is adopted in that the pedal 101 is pivotally fixed by a hinge 104 at the lower end thereof.
[0058]
Similarly to the second embodiment, a link member 109 for transmitting a stepping operation by an occupant to a brake device (not shown) is connected to the second plate 101b side of the pedal 101, and the pedal 101 is depressed to depress the pedal 101. The brake is operated via the link member 109.
[0059]
That is, the third embodiment is a modification of the second embodiment, and has a structure in which the lower end of the pedal 101 is rotatably fixed to the vehicle body floor 105 by a hinge 104 as in the first embodiment.
[0060]
Here, the effect | action at the time of the collision of a vehicle is demonstrated.
[0061]
The operation after the collision is the same as in the first and second embodiments. Until the collision occurs, that is, in the normal state, as shown in FIG. 7A, the first plate 101a and the second plate 101b of the pedal 101 Are joined together.
[0062]
When the vehicle collides, a gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIG.
[0063]
According to the structure of the third embodiment described above, in addition to obtaining the same effect such as mitigating the impact on the sole as in the first and second embodiments, the same as in the second embodiment, A link member 109 is connected to the second plate 101b side of the pedal 101 to transmit an occupant's stepping operation to a brake device (not shown), and the brake is operated via the link member 109 by stepping on the pedal 101. Therefore, when the airbag 102 is deployed at the time of a vehicle collision, the deployment force of the airbag 102 acts on the second plate 101b in the pedal depressing direction. Therefore, when the occupant depresses the pedal 101, While maintaining the pedal depression force and assisting the pedal depression force when it is insufficient, the forward movement of the vehicle after the collision can be suppressed. .
[0064]
In addition, in this third embodiment, the lower end of the pedal 101 is fixed to the vehicle body floor 105 by a hinge 104 so as to be rotatable, so that the hinge 104 portion serves as a fulcrum, so that the pedal effort can be further assisted.
[0065]
FIG. 8 shows a fourth embodiment of the present invention.
[0066]
The basic configuration of the present embodiment is the same as that of the first embodiment. The pedal 101 includes a first plate 101a and a second plate 101b, and an air bag 102 is sandwiched between them. A lower end on the second plate 101b side is rotatably attached to the vehicle body floor 105 by a hinge 104.
[0067]
In particular, in the fourth embodiment, as shown in FIGS. 8A and 8B, the occupant's stepping operation is transmitted to the throttle valve of the engine, which is a power control device, on the first plate 101a side of the pedal 101. Then, the link member 111 for operating is connected, and when the pedal 101 is depressed, the accelerator operation is performed via the link member 111.
[0068]
That is, when the occupant depresses the pedal 101, the link member 111 is pulled to open the accelerator and increase the rotation of the engine.
[0069]
Here, the effect | action at the time of the collision of a vehicle is demonstrated.
[0070]
The action after the collision is the same as that of the first embodiment. Until the collision occurs, that is, in the normal state, the first plate 101a and the second plate 101b of the pedal 101 are integrated as shown in FIG. 9A. It is joined to.
[0071]
When the vehicle collides, a gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIG.
[0072]
According to the structure of the fourth embodiment described above, in addition to obtaining the same effect as in the case of the first embodiment, the impact to the sole is alleviated. The link member 111 that transmits the depression operation of the occupant to the power control device is connected to the first plate 101a side of the pedal 101, and the accelerator operation is performed via the link member 111 when the pedal 101 is depressed. When the airbag 102 is deployed during a vehicle collision, the deployment force of the airbag 102 acts on the first plate 101a in a direction opposite to the pedal depression direction, as shown in FIG. 9B. Even if the occupant is not aware of the collision or depresses the pedal 101 for some reason, the accelerator operation is canceled against the pedal depressing operation. Since decreasing the rotational speed of the engine, it is possible to suppress the forward movement of the vehicle after the collision.
[0073]
FIG. 10 shows a fifth embodiment of the present invention.
[0074]
The basic configuration of this embodiment is the same as that of the fourth embodiment. The pedal 101 includes a first plate 101a and a second plate 101b, and an air bag 102 is sandwiched between the first plate 101a and the second plate 101b. A lower end on the side of the two plates 101b is rotatably attached to the vehicle body floor 105 by a hinge 104.
[0075]
Further, a link member 111 is connected to the first plate 101a side of the pedal 101 to transmit and operate an occupant's stepping operation to an engine throttle valve or the like which is a power control device. An accelerator operation is performed via the link member 111.
[0076]
Particularly in the fifth embodiment, as shown in FIG. 10, the airbag 102 is greatly inflated or deployed on the occupant's heel side.
[0077]
FIG. 11 shows an example for increasing the expansion amount on the heel side.
[0078]
In FIG. 2A, the amount of deployment is regulated by tying a fishing line 114 inside the toe side of the airbag 102.
[0079]
On the other hand, in the same figure (b), the fabric itself of the airbag 102 is cut so as to have a larger volume on the heel side.
[0080]
Here, the effect | action at the time of the collision of a vehicle is demonstrated.
[0081]
The action after the collision is the same as that of the first embodiment, and the first plate 101a and the second plate 101b of the pedal 101 are integrally joined until the collision occurs, that is, in a normal state.
[0082]
When the vehicle collides, gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIG. Moreover, in the present embodiment, as described above, the airbag 102 is greatly inflated or deployed on the occupant's heel side.
[0083]
According to the structure of the fifth embodiment described above, the impact on the sole is mitigated as in the first embodiment, and an occupant is placed on the first plate 101a side of the pedal 101 as in the fourth embodiment. Since the link member 111 that transmits the stepping operation to the power control device is connected and the accelerator 101 is operated via the link member 111 by stepping on the pedal 101, the airbag 102 is deployed when the vehicle collides. Then, since the deployment force of the airbag 102 acts on the first plate 101a in the direction opposite to the pedal depression direction, even if the occupant does not notice the collision or the pedal 101 is depressed due to some reason. The accelerator operation is canceled against this pedal depression operation, and the engine speed is reduced, so the vehicle moves forward after a collision. In addition to obtaining the same effect of being able to be suppressed, according to this embodiment, since the airbag 102 is greatly inflated or deployed on the occupant's heel side, the occupant's ankle warps Can be suppressed.
[0084]
In the fifth embodiment, the structure of the fourth embodiment is such that the airbag 102 as shown in FIG. 10 is added with a structure that greatly expands or deploys on the passenger's heel side. Needless to say, the structures of the first to third embodiments may be used.
[0085]
FIG. 12 shows a sixth embodiment of the present invention.
[0086]
The basic configuration of this embodiment is the same as that of the first to fifth embodiments described above, and the pedal 101 includes a first plate 101a and a second plate 101b, and an airbag 102 is sandwiched therebetween.
[0087]
Particularly in the sixth embodiment, as shown in FIG. 12, the airbag 102 is inflated or deployed over a wider range than the pedal 101 when viewed from the front of the pedal 101.
[0088]
Here, the effect | action at the time of the collision of a vehicle is demonstrated.
[0089]
The operation after the collision is the same as in the first to fifth embodiments, and the first plate 101a and the second plate 101b of the pedal 101 are integrally joined until a collision occurs, that is, in a normal state.
[0090]
When the vehicle collides, gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIG.
[0091]
According to the structure of the sixth embodiment described above, in addition to obtaining the same effect that the impact on the sole is reduced as in the first to fifth embodiments, in addition, according to this embodiment, Since the airbag 102 is expanded or deployed in a wider range than the pedal 101 when viewed from the front of the pedal 101, the impact can be reduced even at a portion protruding from the pedal 101.
[0092]
That is, the entire foot is not always on the pedal 101 in the emergency avoidance operation of the occupant. However, since the airbag 102 is expanded or inflated in a wider range than the pedal 101 as described above, the airbag 102 can be attached to the vehicle body panel 108 and the foot even if the airbag 102 is a portion protruding from the pedal 101. By being in between, the impact transmitted to the toes can be mitigated.
[0093]
FIG. 13 shows a seventh embodiment of the present invention.
[0094]
The basic configuration of this embodiment is the same as that of the first to sixth embodiments described above, and the pedal 101 includes a first plate 101a and a second plate 101b, and an airbag 102 is sandwiched therebetween.
[0095]
In particular, in the seventh embodiment, as shown in FIG. 13, the first plate 101a is formed wider than the second plate 101b, and the airbag 102 is exposed from the second plate 101b. It is arranged between the second plate 101b and the ejection port 103b for injecting the gas of the inflator 103 is attached to an exposed portion of the airbag 102.
[0096]
Here, the effect | action at the time of the collision of a vehicle is demonstrated.
[0097]
The operation after the collision is the same as in the first to sixth embodiments, and the first plate 101a and the second plate 101b of the pedal 101 are integrally joined until the collision occurs, that is, in a normal state.
[0098]
When the vehicle collides, a gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIGS. 14 (a) and 14 (b).
[0099]
According to the structure of the seventh embodiment described above, in addition to obtaining the same effect that the impact on the sole is alleviated as in the first to sixth embodiments, in addition, according to this embodiment, The first plate 101a is formed wider than the second plate 101b, the airbag 102 is exposed from the second plate 101b and disposed between the first plate 101a and the second plate 101b. Since the jet port 103b for injecting the gas of the inflator 103 is attached to an exposed portion of the airbag 102, when the airbag 102 is inflated or deployed at the time of collision, it first protrudes beyond the second plate 101b. Since it is deployed from the part, this absorbs the pressure at the initial stage of deployment of the airbag 102 and reduces the impact input to the occupant's sole. It can be suppressed.
[0100]
More specifically, the airbag 102 is sandwiched between the first plate 101a and the second plate 101b as described above, and the first plate 101a and the second plate 101b are integrally formed by an adhesive. It is joined. Therefore, when the airbag 102 starts to be deployed, a certain high gas pressure is required to separate the first plate 101a and the second plate 101b. Further, as a characteristic of a general gas type inflator, the initial gas pressure tends to rise rapidly, and there is a possibility that an impact due to the gas pressure is applied to the sole of the occupant at the initial stage of deployment.
[0101]
Accordingly, when the airbag 102 is inflated or deployed in the event of a collision in this manner, the airbag 102 is first deployed from the portion that protrudes beyond the second plate 101b, thereby absorbing the pressure at the initial deployment of the airbag 102, and The impact input to the sole can be kept small.
[0102]
FIG. 15 shows an eighth embodiment of the present invention.
[0103]
The basic configuration of this embodiment is the same as that of the first to sixth embodiments described above, and the pedal 101 includes a first plate 101a and a second plate 101b, and an airbag 102 is sandwiched therebetween. Further, in this embodiment, the lower end of the pedal 101 is fixed to the vehicle body floor 105 with a hinge 104 so as to be rotatable as in the above embodiment.
[0104]
In particular, in the eighth embodiment, as shown in FIG. 15, when the airbag 102 is inflated or deployed, both the first plate 101a and the second plate 101b of the pedal 101 are movable together. The stopper 112 is provided so that the movable amount of the second plate 101b is smaller than the movable amount of the first plate 101a.
[0105]
Specifically, for example, when the easily bent portion 115 is provided on the second plate 101b as shown in FIG. 15 and the airbag 102 is deployed, the second plate 101b is shown in FIG. By being deformed by the portion 115, the second plate 101b can be moved by a slight amount even when it is fixed to the vehicle body floor 105 by the hinge 104.
[0106]
A stopper 112 is provided behind the second plate 101b, and the movable amount of the second plate 101b is set to be smaller than the movable amount of the first plate 101a by the stopper 112.
[0107]
Here, the action at the time of the collision of the vehicle will be described with reference to FIG.
[0108]
The operation after the collision is the same as in the first to sixth embodiments, and the first plate 101a and the second plate 101b of the pedal 101 are integrally joined until the collision occurs, that is, in a normal state.
[0109]
When the vehicle collides, a gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIGS. 14 (a) and 14 (b).
[0110]
At this time, pressure is applied from the airbag 102 to both the first plate 101a and the second plate 101b in opposite directions.
[0111]
However, since the first plate 101a is stepped on by the occupant, the second plate 101b first starts moving while being deformed by the easily bendable portion 115. Then, after the second plate 101b moves slightly, when the movement is restricted by the stopper 112, the first plate 101a starts to move and the airbag 102 is deployed.
[0112]
According to the structure of the above eighth embodiment, in addition to obtaining the same effect that the impact on the sole is alleviated as in the first to sixth embodiments, in addition, according to this embodiment, The first plate 101a and the second plate 101b of the pedal 101 are provided so that both of them are movable when the airbag 102 is inflated or deployed, and the movable amount of the second plate 101b is the first plate 101a. Since the stopper 112 is provided to be smaller than the movable amount of the first plate 101a when the airbag 102 is inflated or deployed at the time of collision, the first plate 101a is stepped on by the occupant first. Until the air pressure is regulated by the stopper 112, the pressure at the initial stage of deployment of the airbag 102 is reduced by the second plate 101b. Is absorbed by movement, it is possible to reduce the impact input to the occupant's foot.
[0113]
That is, the eighth embodiment also absorbs the high gas pressure necessary to separate the first plate 101a and the second plate 101b at the start of the deployment of the airbag 102, as in the seventh embodiment. The impact input to the sole can be kept small.
[0114]
FIG. 17 shows a ninth embodiment of the present invention.
[0115]
The basic configuration of this embodiment is the same as that of the first to sixth embodiments described above, and the pedal 101 includes a first plate 101a and a second plate 101b, and an airbag 102 is sandwiched therebetween. Further, in this embodiment, the lower end of the pedal 101 is fixed to the vehicle body floor 105 with a hinge 104 so as to be rotatable as in the above embodiment.
[0116]
In particular, in the ninth embodiment, as shown in FIG. 17, the second plate 101 b is provided with a relief hole 116 that allows only a part of the volume of the airbag 102 to be deployed.
[0117]
Moreover, a bypass is provided so that the gas from the inflator 103 flows preferentially to this portion of the airbag 102b.
[0118]
Here, the action at the time of the collision of the vehicle will be described with reference to FIGS.
[0119]
The operation after the collision is the same as in the first to sixth embodiments, and the first plate 101a and the second plate 101b of the pedal 101 are integrally joined until the collision occurs, that is, in a normal state.
[0120]
When the vehicle collides, a gas is injected from the inflator 103 into the airbag 102 according to a command from the controller 107, and the airbag 102 is inflated or deployed as shown in FIGS. 14 (a) and 14 (b).
[0121]
At this time, first, a gas is injected from the inflator 103 into the portion 102 b corresponding to the relief hole 116 of the airbag 102, and is developed from the portion of the relief hole 116.
[0122]
However, since the diameter of the relief hole 116 is not large, after the airbag 102b corresponding to the relief hole 116 is deployed to some extent, the main body portion of the airbag 102 is moved while the first plate 101a moves in the sole direction. expand.
[0123]
According to the structure of the ninth embodiment described above, in addition to obtaining the same effect that the impact on the sole is mitigated as in the first to sixth embodiments, in addition, according to this embodiment, Since the second plate 101b is provided with a relief hole 116 that allows only a part of the volume of the airbag 102 to be deployed, when the airbag 102 is inflated or deployed in the event of a collision, Since the airbag 102 is deployed from the portion 102 b corresponding to the hole 116, the pressure at the initial stage of deployment of the airbag 102 can be absorbed by the portion 102 b corresponding to the relief hole 116, and the impact input to the occupant's sole can be kept small.
[0124]
That is, as in the seventh and eighth embodiments, the ninth embodiment also absorbs the high gas pressure necessary to separate the first plate 101a and the second plate 101b when the airbag 102 starts to be deployed. The impact input to the occupant's sole can be kept small.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a pedal portion according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a state during normal use in the embodiment.
FIG. 3 is an operation explanatory diagram of an impact mitigation structure at the time of a vehicle collision in the embodiment.
FIG. 4 is a diagram comparing the case of being restrained directly by an airbag (a) and the case of being restrained via a plate (b).
FIG. 5 is an operation explanatory diagram of an impact mitigation structure at the time of a vehicle collision in the second embodiment of the present invention.
FIG. 6 is a perspective view (a) and an exploded perspective view (b) of a pedal portion showing a configuration according to a third embodiment of the present invention.
FIG. 7 is an operation explanatory diagram of an impact mitigation structure at the time of a vehicle collision according to a third embodiment of the present invention.
FIG. 8 is a perspective view (a) and an exploded perspective view (b) of a pedal portion showing a configuration in a fourth embodiment of the present invention.
FIG. 9 is an operation explanatory diagram of an impact mitigation structure at the time of a vehicle collision in the fourth embodiment of the present invention.
FIG. 10 is an operation explanatory diagram of an impact mitigation structure at the time of a vehicle collision according to a fifth embodiment of the present invention.
FIG. 11 is a perspective view showing a specific example of an airbag according to a fifth embodiment of the present invention.
FIG. 12 is a perspective view showing a state of airbag deployment at the time of a vehicle collision in a sixth embodiment of the present invention.
FIG. 13 is a perspective view showing a configuration in a seventh embodiment of the present invention.
FIG. 14 is a perspective view showing a state of airbag deployment at the time of a vehicle collision in a seventh embodiment of the present invention.
FIG. 15 is a perspective view showing a configuration according to an eighth embodiment of the present invention.
FIG. 16 is an operation explanatory diagram of an impact mitigation structure at the time of a vehicle collision according to an eighth embodiment of the present invention.
FIG. 17 is a perspective view showing a configuration according to a ninth embodiment of the present invention.
FIG. 18 is a perspective view showing a state of airbag deployment at the time of a vehicle collision in the ninth embodiment of the present invention.
FIG. 19 is an operation explanatory diagram of an impact mitigation structure at the time of a vehicle collision in the ninth embodiment of the present invention.
FIG. 20 is an operation explanatory diagram of a shock mitigation structure at the time of a vehicle collision in a conventional structure and a perspective view showing a pedal portion.
FIG. 21 is an operation explanatory diagram of an impact mitigation structure at the time of a vehicle collision in a conventional structure.
[Explanation of symbols]
101 pedal
101a First plate
101b Second plate
102 airbag
103 inflator
103a, 103b spout
105 body floor
109 Link member (brake)
111 Link member (accelerator)
112 Stopper
113 hole
116 relief hole

Claims (10)

In the pedal that is placed at the foot of the occupant and operated with the foot,
The pedal is composed of a plurality of plate members composed of at least two plates, a first plate facing the occupant side and a second plate arranged on the back side of the pedal, and an air bag is sandwiched between the plurality of plates. An impact mitigating structure for a vehicle, wherein the airbag is inflated or deployed when the vehicle collides. 2. The vehicle according to claim 1, wherein the pedal is formed to have a size that substantially covers an entire sole of a passenger, and a lower end of the pedal is rotatably attached to a vehicle body floor below the pedal. Impact relaxation structure. An inflator for inflating or deploying the airbag is provided on the back side of the second plate of the pedal, and a hole penetrating from the back side is provided on the second plate, and gas ejected from the inflator is injected into the airbag. The vehicle impact mitigating structure according to any one of claims 1 and 2, wherein a jetting outlet is attached to the airbag through a hole in the second plate. The first plate is formed wider than the second plate, the airbag is exposed from the second plate and disposed between the first plate and the second plate, and the inflator gas is injected. The impact mitigating structure for a vehicle according to any one of claims 1 and 2, wherein a jet port is attached to an exposed portion of the airbag. A link member that transmits an occupant's stepping operation to the power control device is connected to the first plate side of the pedal, and the accelerator operation is performed via the link member by depressing the pedal. Item 5. The impact mitigation structure for a vehicle according to any one of Items 1 to 4. A link member that transmits an occupant's stepping operation to a brake device is connected to the second plate side of the pedal, and the brake is operated via the link member by stepping on the pedal. Item 5. The impact mitigation structure for a vehicle according to any one of Items 1 to 4. The impact mitigation structure for a vehicle according to any one of claims 1 to 6, wherein the airbag is greatly inflated or deployed on the occupant's heel side. 8. The impact mitigating structure for a vehicle according to claim 1, wherein the airbag is inflated or deployed in a wider range than the pedal when viewed from the front of the pedal. The first plate and the second plate of the pedal are provided so that both of them can move when the airbag is inflated or deployed, and the movable amount of the second plate is smaller than the movable amount of the first plate. A vehicle impact mitigating structure according to claim 1, wherein a stopper is provided as described above. 10. The impact mitigation structure for a vehicle according to claim 1, wherein the second plate is provided with a relief hole that allows only a part of the volume of the airbag to be deployed.

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