JP2015067148A - Saddle-riding type vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a saddle-riding type vehicle which can effectively perform cushioning of an operator at the time of collision of the vehicle.SOLUTION: A two-wheeled motor vehicle 10 including a saddle-riding type vehicle includes: a seat 16 on which an operator 43 rides; and an air bag device 45 for cushioning the operator 43 by inflation and expansion of an air bag 71 in front of the operator 43 according to a command from a control apparatus, in which the air bag 71 at the time of inflation and expansion is equipped with a head opposing part 71A and a breast presser part 71B which projects to the operator 43 side below the head opposing part 71A. In the vehicle 10, the air bag 71 is so set that a rear end position of the breast presser part 71B at the time of inflation and expansion is generally same as a front end position 16a of the seat 16 in a vehicle longitudinal direction.

Description

  The present invention relates to a saddle-ride type vehicle including an airbag device.

  Conventionally, when the airbag is inflated and deployed, a head-facing portion located in front of the driver's head and a chest pressing portion that is located below the head-facing portion and bulges toward the driver are formed. A saddle-ride type vehicle including an airbag device is known (see, for example, Patent Document 1).

JP 2013-154846 A

In general, when the vehicle collides with an object, if the distance between the airbag after completion of inflation and the driver is far from the driver, position variation between the driver and the airbag may occur. It becomes difficult to do.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a saddle-ride type vehicle capable of effectively buffering a driver when the vehicle collides.

  In order to solve the above-described problem, the present invention is configured such that the airbag (71) is inflated and deployed in front of the driver (43) by the seat (16) over which the driver (43) straddles and the command of the control device. An airbag device (45) that cushions the driver (43), and the airbag (71) during inflation and deployment is located below the head facing portion (71A) and the head facing portion (71A). In a saddle-ride type vehicle including a chest pressing portion (71B) protruding toward the driver (43), the airbag (71) has a rear end position of the chest pressing portion (71B) at the time of inflation and deployment. The front end position (16a) of the seat (16) is set substantially at the same position in the vehicle longitudinal direction.

In the above-described configuration, the airbag (71) is configured so that the front wheel surface (71c) of the front contact surface (71c) that contacts the collision object (65) in front of the vehicle at the time of inflating and deploying has a front wheel ( 33) It may be set at substantially the same position as the rear end position (33a).
In the above configuration, the distance (L1) between the head-facing portion (71A) and the driver's head (46) at the time of inflation and deployment is the distance between the chest pressing portion (71B) and the driver's chest (43a). It may be set larger than the distance (L2).

In the above configuration, the width dimension (W1) in the vehicle width direction of the head facing portion (71A) at the time of inflation and deployment is smaller than the width dimension (W2) in the vehicle width direction of the chest pressing portion (71B). It may be set.
In the above configuration, the width dimension (W1) in the vehicle width direction of the head facing portion (71A) at the time of inflating and deploying is smaller than the width dimension (W2) in the vehicle width direction of the chest pressing portion (71B). The driver's chest (43a) and the driver's head (46) may be set smaller according to the difference in the width dimension in the vehicle width direction.

  The present invention also provides the driver (43) with the seat (16) that the driver (43) straddles and the airbag (71) inflated and deployed in front of the driver (43) according to a command from the control device. A cushioning airbag device (45), and the airbag (71) during inflating and deploying has a head-facing portion (71A) and a driver (43) side below the head-facing portion (71A). In a saddle-ride type vehicle having a chest pressing portion (71B) protruding in the head, the head facing surface (71f) facing the driver's head (46) of the head facing portion (71A) has a vehicle width direction. A recess (71d) having a recess in the center compared to the left and right outer sides is formed.

According to the present invention, since the rear end position of the chest pressing portion at the time of inflating and deploying is set to be approximately the same as the front end position of the seat in the vehicle front-rear direction, the chest pressing portion is brought closer to the driver's chest. Since the position variation between the driver's chest and the chest presser can be further reduced, the cushioning effect of the driver's chest can be enhanced.
In addition, since the position of the front and rear direction of the front contact surface that contacts the collision object in front of the vehicle when the airbag is inflated and deployed is set substantially at the same position as the rear end position of the front wheel provided in the vehicle, Since the part facing part can be brought closer to the driver's head and the positional variation between the driver's head and the head facing part can be further reduced, the cushioning effect of the driver's head can be enhanced.

In addition, since the distance between the head-facing portion and the driver's head when inflated and deployed is set to be greater than the distance between the chest presser and the driver's chest, the head is buffered first, After the chest presser part comes into contact with the driver's chest at the same time as the part is more buffered, even if there is a constricted part in the airbag as in the past, the vehicle width direction between the airbag and the driver Misalignment is unlikely to occur, and variations in airbag cushioning can be suppressed.
In addition, since the width dimension in the vehicle width direction of the head facing portion at the time of inflating and deploying is set smaller than the width dimension in the vehicle width direction of the chest pressing portion, after the chest pressing portion contacts the driver's chest Since the displacement in the vehicle width direction between the airbag and the driver hardly occurs, the overall capacity of the airbag can be reduced by reducing the width of the head facing portion.

In addition, the width dimension in the vehicle width direction of the head-facing portion at the time of inflating and deploying depends on the difference in the width dimension in the vehicle width direction between the driver's chest and head relative to the width dimension in the vehicle width direction of the chest presser Therefore, the same variation can be allowed between the chest pressing portion and the head facing portion in the cushioning of the airbag.
Further, the head-facing surface of the head-facing portion facing the driver's head is formed with a recessed portion whose center is recessed compared to the left and right outer sides in the vehicle width direction. By moving to the inside of the indented portion and further sinking into the head facing portion, the driver's head becomes difficult to move to the left and right outside in the vehicle width direction of the head facing portion. Therefore, the driver's head can be prevented from coming off from the head facing portion, and can be reliably buffered.

1 is a left side view of a motorcycle and a driver including an airbag device according to an embodiment of the present invention. FIG. 6 is an operation diagram showing an operating state of the airbag device at the time of a collision of a motorcycle. FIG. 3 is a left side view showing a state where an airbag of an airbag device mounted on a motorcycle is inflated and deployed. 4A and 4B are explanatory diagrams for explaining an airbag of the airbag device, in which FIG. 4A is a side view of the inflated and deployed airbag, and FIG. 4B is a rear view of the inflated and deployed airbag. It is explanatory drawing which shows the shape and effect | action of a head opposing part, FIG. 5 (A) is the VV sectional view taken on the line of FIG. 4 (B), FIG. 5 (B) is an effect | action figure which shows the effect | action of a head opposing part. It is.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description, descriptions of directions such as front and rear, right and left and up and down are the same as directions with respect to the vehicle body unless otherwise specified. Further, in each figure, the symbol FR indicates the front of the vehicle body, the symbol UP indicates the upper side of the vehicle body, and the symbol LE indicates the left side of the vehicle body.
FIG. 1 is a left side view of a motorcycle 10 and a driver 43 including an airbag device 45 according to an embodiment of the present invention.
The motorcycle 10 includes a body frame 11 serving as a skeleton, a front fork 12 supported by the body frame 11, a front storage portion 13, an engine 14, a seat 16, and a swing arm 17.

The body frame 11 includes a head pipe 21 provided at the front end thereof, and a main frame 22, a center frame 23, a seat rail (not shown), a down frame 26, and an upper frame 27 provided on the left and right sides, respectively.
The head pipe 21 supports the front fork 12 so as to be steerable, the main frame 22 extends rearward and obliquely downward from the lower portion of the head pipe 21, and the center frame 23 extends downward from the rear end portion of the main frame 22. . The seat rail extends rearward from the rear end portion of the main frame 22, the down frame 26 extends downward and obliquely rearward from the front end portion of the main frame 22, and the upper frame 27 extends from the upper portion of the head pipe 21 to the main frame. It extends backward to 22.

The front fork 12 supports a front wheel 33 via a bar handle 31 at the upper end and an axle 32 at the lower end. The front storage portion 13 has a conventional fuel tank shape. The engine 14 includes a crankcase 36 and a cylinder portion 37 provided to tilt forward from the crankcase 36, and a transmission 38 is integrally provided at the rear portion of the crankcase 36.
The seat 16 is attached to the upper part of the seat rail. The swing arm 17 is supported by the center frame 23 so as to be swingable up and down, and a rear wheel 42 is supported at the rear end portion via an axle 41.

An airbag device 45 that cushions the driver 43 when the motorcycle 10 collides with an object such as a vehicle or a wall from the front portion of the front storage portion 13 is provided.
The airbag device 45 includes an impact sensor (acceleration sensor) 47 attached to the lower end portion of the front fork 12 to detect deceleration at the time of a vehicle collision, and an ECU (to which a deceleration signal from the impact sensor 47 is input. A control device (not shown), an inflator (not shown) that is ignited based on an ignition command from the ECU to generate gas, and an airbag 71 (see FIG. 2) that is inflated and deployed by the generated gas.
Here, 46 is a helmet, 51 is a headlight, 52 is a front fender that covers the front wheel 33 from above, 53 is a radiator, 54 is an exhaust pipe, 56 is a side stand, 57 is a main stand, 58 is a passenger grab rail, 61 is a rear fender that covers the rear wheel 42 from above, 62 is a chain that transmits power from the transmission 38 to the rear wheel 42, and 63 is a muffler connected to the rear end of the exhaust pipe 54.

FIG. 2 is an operation diagram showing an operating state of the airbag device 45 when the motorcycle 10 collides.
When the deceleration detected by the impact sensor 47 reaches a predetermined value when the front wheel 33 or a part of the vehicle body collides with the wall 65 (or an object such as a vehicle) while the motorcycle 10 is traveling, the ECU Then, the inflator is ignited to inflate and deploy the airbag 71. As a result, since the airbag 71 is positioned between the wall 65 and the driver 43, the driver 43 can be prevented from directly hitting the wall 65, and the impact acting on the driver 43 can be reduced. be able to.
Specifically, in the driver 43, the chest 43 a is particularly buffered at the lower part of the airbag 71, and the head is buffered via the helmet 46 at the upper part of the airbag 71. Below, the helmet 46 is demonstrated as a head regarding a buffer.

The structure, shape and dimensions of the airbag 71 will be described with reference to FIGS.
FIG. 3 is a left side view showing a state where the airbag 71 of the airbag device 45 mounted on the motorcycle 10 is inflated and deployed, and shows the inflation and deployment of the airbag 71 when the vehicle is stopped.
The airbag device 45 includes an impact sensor 47, a storage box 72, an airbag 71 stored in the storage box 72, an inflator (not shown), and an ECU (Electronic Control Unit, not shown).
The inflated airbag 71 is disposed adjacent to a head facing portion 71A capable of receiving the head facing the driver 43's head (helmet 46) and below the head facing portion 71A. And a breast pressing portion 71B that bulges toward the driver 43 relative to the head facing portion 71A.

The head facing portion 71A extends substantially vertically to a position higher than the helmet 46 of the driver 43, and the position of the front contact surface 71c in the head facing portion 71A in the vehicle front-rear direction is substantially the same as the rear end position 33a of the front wheel 33. Set to position. Further, the position of the rear end of the chest holding portion 71B in the vehicle front-rear direction is set substantially at the same position as the front end position 16a of the seat 16.
The upper end position of the chest presser 71B is set to the same height as the helmet 46 of the driver 43, specifically, the approximate center of the height of the helmet 46, as indicated by a horizontal auxiliary line 75 passing through the position, The lower end position of the chest pressing portion 71B is set to substantially the same height as the abdomen 43b of the driver 43, as indicated by a horizontal auxiliary line 76 passing through the position.
When the distance between the helmet 46 of the driver 43 and the head facing surface 71f that is the back of the head facing portion 71A is L1, and the distance between the chest 43a of the driver 43 and the chest pressing portion 71B is L2, L1> L2. Become. In this embodiment, the distance L2 is closer than before.

4A and 4B are explanatory views for explaining the airbag 71 of the airbag device 45. FIG.
4A is a side view of the airbag 71 inflated and deployed, and FIG. 4B is a rear view of the airbag 71 inflated and deployed.
4 (A) and 4 (B), the airbag 71 has a recessed portion 71d extending in the vertical direction at the center of the width in the vehicle width direction at the head facing portion 71A and the upper end portion of the chest presser portion 71B. Is formed. Further, in the chest pressing portion 71B, a plurality of gas discharge holes 71e and 71e for releasing the internal gas are formed at positions away from the central portion of the width in the vehicle width direction. In this manner, by providing the gas discharge hole 71e, the gas in the airbag 71 during or after the deployment of the driver 43 being pressed or after the completion of the inflation and deployment is released to the outside and the collision energy can be absorbed.
In FIG. 4B, if the width dimension in the vehicle width direction of the head facing portion 71A is W1, and the width dimension in the vehicle width direction of the chest pressing portion 71B is W2, then W1 <W2. That is, the width dimension W1 in the vehicle width direction of the head facing part 71A that receives the helmet 46 (see FIG. 3) and the width dimension W2 in the vehicle width direction of the chest pressing part 71B that receives the chest part 43a (see FIG. 3), It is set according to the width in the vehicle width direction of the helmet 46 and the chest 43a of the driver 43 (see FIG. 3).

5A and 5B are explanatory diagrams showing the shape and action of the head facing portion 71A. 5A is a cross-sectional view taken along the line VV in FIG. 4B, and FIG. 5B is an operation diagram showing the operation of the head facing portion 71A.
As shown in FIG. 5A, the head facing portion 71A includes a hollow portion 71d located in front of the helmet 46 of the driver 43 (see FIG. 3) at the center of the width in the vehicle width direction.
The shape of the airbag 71 described above is shaped by a belt-like or string-like tether (not shown) provided inside the airbag 71.
In FIG. 5 (B), when the helmet 46 of the driver 43 (see FIG. 3) moves forward as indicated by the white arrow due to a vehicle collision, the helmet 46 enters the recessed portion 71d and further moves forward. It sinks into the head facing part 71A. As a result, the helmet 46 becomes difficult to move in the vehicle width direction of the head facing portion 71A, can be prevented from coming off from the head facing portion 71A, and can be reliably buffered.

In FIG. 1 and FIG. 2, the time elapsed from the time when the motorcycle 10 collides with the object until the impact energy absorption of the driver 43 by the airbag 71 is completed will be described in time series from time t = 0 to t5. .
Time t = 0 is defined as the time when the motorcycle 10 collides with the wall 65 and the deceleration detected by the impact sensor 47 increases to reach a predetermined value necessary for inflating and deploying the airbag 71. At this time t = 0, since the ECU instructs ignition of the inflator, gas is generated by ignition of the inflator, the gas is sent into the airbag 71, and the airbag 71 starts to expand and deploy.
At time t = t1, in the airbag 71, the inflation and deployment of the chest pressing portion 71B and the head facing portion 71A is in a state immediately before or after completion. Here, “immediately before the completion of expansion and expansion” refers to an expansion and expansion state capable of exhibiting an effect of absorbing impact energy.
At time t = t2, in the driver 43, the chest 43a contacts the chest pressing part 71B of the airbag 71. In the present embodiment, the rear end position of the chest pressing portion 71B is set to be substantially the same position in the vehicle front-rear direction as the front end position 16a (see FIG. 3) of the seat 16 (see FIG. 3), so that time t = t2 is set. It was possible to make it equal to or greater than time t1 (t1 ≦ t2).

At time t = t3, the airbag 71 moves forward together with the motorcycle 10, and the front contact surface 71c of the airbag 71 contacts the wall 65.
At time t = t4, in the driver 43, the head (helmet 46) contacts the head facing portion 71A of the airbag 71. In the present embodiment, the position of the front contact surface 71c of the airbag 71 in the vehicle front-rear direction is set to be substantially the same as the rear end position 33a (see FIG. 3) of the front wheel 33 of the vehicle, so that time t = t4 is set. The time t was equal to or greater than t3 (t3 ≦ t4).
Absorption of kinetic energy of the driver 43 by the airbag 71 starts at time t = t2 and is completed at time t = t5.
As described above, the difference between the time t = t1 and the time t = t2 is zero or small, and the difference between the time t = t3 and the time t = t4 is zero or small. 43a and the helmet 46, and the position variation between the chest pressing portion 71B and the head facing portion 71A of the airbag 71 can be further reduced. Therefore, the driver 43 can be more reliably received by the airbag 71, and the buffering effect of the driver 43 can be enhanced.

As shown in FIG. 3 above, the airbag 16 cushions the driver 43 by inflating and deploying the airbag 71 in front of the driver 43 in accordance with a seat 16 over which the driver 43 strides and a command from the ECU (control device). A saddle-ride type vehicle including a bag device 45, and an airbag 71 at the time of inflation and deployment including a head facing portion 71A and a chest pressing portion 71B projecting toward the driver 43 below the head facing portion 71A. In the motorcycle 10, the rear end position of the chest pressing portion 71 </ b> B at the time of inflation and deployment is set to be approximately the same as the front end position 16 a of the seat 16 in the vehicle front-rear direction.
According to this configuration, the chest pressing portion 71B can be brought closer to the chest 43a of the driver 43, and the positional variation between the chest 43a and the chest pressing portion 71B can be further reduced, so that the buffering effect of the chest 43a is enhanced. be able to.

  In addition, the airbag 71 has a front-rear surface 71c that is in contact with a wall 65 (see FIG. 2) as a collision object in front of the vehicle at the time of inflation and deployment. Since the head position is substantially the same as the end position 33a, the head facing portion 71A can be brought closer to the helmet 46 of the driver 43, and the positional variation between the helmet 46 and the head facing portion 71A can be further reduced. Therefore, the buffer effect of the helmet (head) 46 can be enhanced.

  Further, the distance L1 between the head facing portion 71A at the time of inflation and deployment and the helmet 46 as the head of the driver 43 is set to be larger than the distance L2 between the chest pressing portion 71B and the chest 43a of the driver 43. Therefore, after the chest 43a is buffered first, the head is more buffered, and at the same time, after the chest presser 71B comes into contact with the chest 43a of the driver 43, the constricted portion of the airbag as in the prior art. Even if there is, the displacement in the vehicle width direction between the airbag 71 and the driver 43 is less likely to occur, and variations in the cushioning of the airbag 71 can be suppressed.

As shown in FIG. 4B, the width dimension W1 in the vehicle width direction of the head facing portion 71A at the time of inflating and deploying is set smaller than the width dimension W2 in the vehicle width direction of the chest pressing portion 71B. Therefore, after the chest pressing portion 71B comes into contact with the chest 43a (see FIG. 2) of the driver 43 (see FIG. 2), the positional deviation in the vehicle width direction between the airbag 71 and the driver 43 hardly occurs. Therefore, the overall capacity of the airbag 71 can be reduced by reducing the width dimension W1 of the head facing portion 71A.
Further, as shown in FIGS. 4B and 5B, the width dimension W1 in the vehicle width direction of the head facing portion 71A at the time of inflation and deployment is the width dimension W2 in the vehicle width direction of the chest pressing portion 71B. On the other hand, since it is set small according to the difference in the width dimension in the vehicle width direction between the chest 43a (see FIG. 2) of the driver 43 (see FIG. 2) and the helmet 46 of the driver 43, the airbag 71 In buffering, the same variation can be allowed between the chest pressing portion 71B and the head facing portion 71A.

  Further, as shown in FIGS. 3, 4B, 5A, and 5B, the head facing surface 71f facing the helmet 46 of the head facing portion 71A has left and right outer sides in the vehicle width direction. Compared to the above, the depression 71d having a depression in the center is formed, so that the helmet 46 of the driver 43 moves forward and enters the depression 71d and further sinks into the head facing part 71A. The helmet 46 is difficult to move to the left and right outside in the vehicle width direction of the head facing portion 71A. Therefore, the helmet 46 can be prevented from coming off from the head facing portion 71A, and can be reliably buffered.

The above-described embodiment is merely an aspect of the present invention, and can be arbitrarily modified and applied without departing from the gist of the present invention.
For example, in the above-described embodiment, as shown in FIGS. 4A and 4B, the gas discharge holes 71e and 71e are formed at positions spaced apart from the center of the width in the vehicle width direction in the chest pressing portion 71B. However, the present invention is not limited to this, and the gas discharge hole 71e may be provided in both the chest pressing portion 71B and the head facing portion 71A, or the gas discharge hole 71e may be provided only in the head facing portion 71A. good. The number of gas discharge holes 71e is not limited to two, and may be one or three or more.
Further, the present invention is not limited to the case where the present invention is applied to the motorcycle 10 (including the scooter) but can be applied to a saddle-ride type vehicle including other than the motorcycle 10.

10 Motorcycles (saddle-ride type vehicles)
16 Seat 16a Front end position 33 Front wheel 33a Rear end position 43 Driver 43a Chest 45 Airbag device 46 Helmet (head)
65 wall (impact)
71 Airbag 71A Head facing portion 71B Chest pressing portion 71c Front contact surface 71f Head facing surface L1 Distance between head and head facing portion L2 Distance between chest and chest pressing portion W1 Width dimension of head facing portion W2 Width dimension of chest holding part

Claims (6)

The airbag (71) that cushions the driver (43) by inflating and deploying the airbag (71) in front of the driver (43) according to the command of the control device and the seat (16) that the driver (43) straddles 45), and the airbag (71) at the time of inflating and deploying has a head-facing portion (71A) and a chest pressing portion projecting toward the driver (43) below the head-facing portion (71A) (71B) in a saddle-ride type vehicle,
In the airbag (71), the rear end position of the chest pressing part (71B) at the time of inflation and deployment is set to be substantially the same position as the front end position (16a) of the seat (16) in the vehicle front-rear direction. A saddle-ride type vehicle characterized by   The airbag (71) is located at the rear of the front wheel (33) provided in the vehicle (10) at a position in the vehicle front-rear direction of the front contact surface (71c) that contacts the collided object (65) in front of the vehicle during inflation and deployment. The saddle riding type vehicle according to claim 1, wherein the saddle riding type vehicle is set at substantially the same position as the end position (33a).   The distance (L1) between the head-facing portion (71A) and the driver's head (46) during inflation and deployment is greater than the distance (L2) between the chest pressing portion (71B) and the driver's chest (43a). The saddle riding type vehicle according to claim 1 or 2, wherein the saddle riding type vehicle is set large.   The width dimension (W1) in the vehicle width direction of the head facing portion (71A) at the time of inflating and deploying is set to be smaller than the width dimension (W2) in the vehicle width direction of the chest pressing portion (71B). The saddle-ride type vehicle according to any one of claims 1 to 3, wherein   The width dimension (W1) in the vehicle width direction of the head-facing portion (71A) at the time of inflating and deploying is compared with the width dimension (W2) in the vehicle width direction of the chest pressing portion (71B). The saddle riding type vehicle according to claim 4, wherein the saddle riding type vehicle is set to be small in accordance with a difference in a width dimension in a vehicle width direction between the head and the head (46). The airbag (71) that cushions the driver (43) by inflating and deploying the airbag (71) in front of the driver (43) according to the command of the control device and the seat (16) that the driver (43) straddles 45), and the airbag (71) at the time of inflating and deploying has a head-facing portion (71A) and a chest pressing portion projecting toward the driver (43) below the head-facing portion (71A) (71B) in a saddle-ride type vehicle,
The head facing surface (71f) facing the driver's head (46) of the head facing portion (71A) is formed with a recessed portion (71d) whose center is recessed compared to the left and right outer sides in the vehicle width direction. A saddle-ride type vehicle characterized by

Images