WO2019207778A1

WO2019207778A1 - Airbag device for riding type vehicle

Info

Publication number: WO2019207778A1
Application number: PCT/JP2018/017241
Authority: WO
Inventors: 太宮川
Original assignee: 本田技研工業株式会社
Priority date: 2018-04-27
Filing date: 2018-04-27
Publication date: 2019-10-31
Also published as: JPWO2019207778A1; TW201945234A; JP6945065B2

Abstract

In order to dispose an airbag device compactly and deploy an airbag in a vertical direction, there is provided an airbag device for a riding type vehicle, which has: an airbag (52a); a retainer (52) which receives the airbag (52a); and an inflator (51) which generates gas that deploys the airbag (52a), and which is fixed to a frame (30) of the vehicle and is disposed on a stem pipe (31) inserted into a handle base part (42) in which handle bars (41) are connected to the left and right sides thereof.

Description

Airbag device for saddle riding type vehicle

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

2. Description of the Related Art Conventionally, in an airbag device for a saddle-ride type vehicle, there is known a device that facilitates deployment of an airbag upward by discharging gas upward from an inflator provided at the bottom of the airbag device (for example, Patent Document 1).

Japanese Patent Laying-Open No. 2015-145151

By the way, in the airbag apparatus of a saddle-ride type vehicle, it is desired to arrange the airbag apparatus in a compact manner and to deploy the airbag as vertically upward as possible for appropriate protection of the occupant.
The present invention has been made in view of the above-described circumstances. In an airbag device for a saddle-ride type vehicle, the airbag device can be arranged in a compact manner and the airbag can be deployed vertically upward. Objective.

The present invention includes an air bag (52a), a retainer (52) for housing the air bag (52a), and an inflator (51) for generating a gas for deploying the air bag (52a), It is fixed to the frame (30), and is arranged on the stem pipe (31) inserted into the handle base (42) connecting the handle bar (41) on the left and right.

In the above invention, the vehicle may be disposed between the meter (60) mounted on the handlebar (41) and the stem pipe (31) in a side view of the vehicle.

Further, in the above invention, it may be arranged in front of the left and right ends (45a) of the handle bar (41) in a side view of the vehicle.

In the above invention, the handle cover (23) covering the upper part of the handle bar (41) and the inner cover (22) covering the lower part of the handle bar (41) from the rear may be arranged.

According to the airbag device of the saddle-ride type vehicle according to the present invention, the airbag device includes a airbag, a retainer that stores the airbag, and an inflator that generates gas for deploying the airbag, and is fixed to the vehicle frame. , Placed on the stem pipe inserted into the handle base connecting the handle bar to the left and right.
According to this structure, an airbag module can be arrange | positioned near a handle bar, and an airbag module can be arrange | positioned near the upper body part from a passenger | crew's head to a chest. For this reason, an airbag can be comprised compactly and the time concerning the expansion | deployment of an airbag can be shortened.
Furthermore, since the handle bar is disposed outside the stem pipe in the vehicle left-right direction, the airbag can be deployed vertically upward using the space above the stem pipe and the space between the handle bars.

In the above invention, the airbag device for the saddle-ride type vehicle may be disposed between the meter mounted on the handlebar and the stem pipe in a side view of the vehicle.
According to this configuration, the airbag can be arranged while maintaining the layout of the handlebar and the meter. Moreover, an airbag module can be arrange | positioned near the upper body part from a passenger | crew's head to a chest, and an airbag can be comprised compactly.

Moreover, in the said invention, you may arrange | position ahead of the left-right edge part of a handlebar by the vehicle side view.
According to this structure, an airbag module can be arrange | positioned in the position close | similar to the upper body part from the front of a passenger | crew and from a head to a chest.

Moreover, in the said invention, you may arrange | position between the handle cover which covers the upper part of a handle bar, and the inner cover which covers the lower part of a handle bar from back.
According to this configuration, the airbag module can be arranged without changing the external layout of the motorcycle.

FIG. 1 is a left side view of a motorcycle having an airbag apparatus according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of the left side surface showing the handle assembly and the airbag module of the motorcycle. FIG. 3 is a rear perspective view showing the stem pipe and the airbag module. FIG. 4 is a rear perspective view showing the handle assembly.

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. Moreover, the symbol FR shown in each figure indicates the front of the vehicle body, and the symbol UP indicates the upper side of the vehicle body.

FIG. 1 is a left side view of a motorcycle having an airbag apparatus according to an embodiment of the present invention.
The motorcycle 1 (saddle-ride type vehicle) is a scooter type vehicle having a low floor step floor 24 on which a driver (occupant) seated on a seat 10 places his / her feet. The motorcycle 1 has a front wheel 2 in front of a body frame F, and a rear wheel 3 as a driving wheel is pivotally supported by a unit swing engine U (unit swing power unit) connected to the rear portion of the body frame F. . The vehicle body frame F is covered with a resin vehicle body cover C (vehicle body).

The body frame F includes a main frame 30 that extends rearward and downward from the front portion of the vehicle body, a seat rail (not shown) that extends in the front-rear direction below the seat 10, and the like.
The unit swing engine U is a unit swing type in which an engine (not shown) and a transmission case M in which a belt-type continuously variable transmission mechanism (not shown) is housed are integrated, and a swing that supports the rear wheel 3. It also has a function as an arm. A rear cushion 17 is stretched between the rear part of the unit swing engine U and the rear part of the vehicle body frame F.

The vehicle body cover C includes a front cover 20 that covers a lower portion of the handle bar 41, and a pair of left and right front side covers 21 that are connected to the lower side edges of the front cover 20 and extend downward. The vehicle body cover C is further connected to the left and right edges of the front cover 20 and the front side cover 21 to cover the lower part of the handle bar 41 from the rear, and the handle partly covering the upper part of the handle bar 41. A cover 23 is provided. The handle cover 23 is an upper part of the handle bar 41 and covers the center in the vehicle width direction. The front cover 20, the front side cover 21, and the inner cover 22 are fixed to the main frame 30.

A grip portion 45 provided on the upper portion of the handle bar 41 protrudes from the handle cover 23 to the left and right sides of the vehicle and rearward, and the handle cover 23 can rotate with the handle bar 41 relative to the main frame 30. It has become. Note that the rearmost portion of the handlebar 41 in the vehicle front-rear direction is an end portion 45 a of the grip portion 45.
Further, a step floor 24 extending rearward continuously from the lower edge of the inner cover 22, a floor cover 25 covering the step floor 24 from the left and right sides, and a body side cover 26 covering the lower portion of the seat 10 are also provided. include.

A headlight 27 is provided on the front surface of the handle cover 23. A meter 60 for displaying the speed and the like of the motorcycle 1 is provided at the center of the vehicle cover in the vehicle width direction above the handle cover 23. Both the headlight 27 and the meter 60 are attached to the handle bar 41 together with the handle cover 23, and are steered integrally with the grip portion 45 as the grip portion 45 of the handle bar 41 is operated. A rearview mirror 29 is attached to the grip portion 45.

The handle base 42 connected to the lower end of the handle bar 41 is rotatably supported at the front end of the main frame 30. A pair of left and right front forks 16 are attached to the lower end of the handle base 42 via a bridge 46. The front wheel 2 is pivotally supported at the lower end of the front fork 16 and is steered by an operation by the grip portion 45 of the handle assembly 40.
An airbag module 50 (airbag device) is provided above the handle base 42.

FIG. 2 is a partial left side sectional view showing a handle assembly and an airbag module of the motorcycle, and FIG. 3 is a rear perspective view showing the stem pipe and the airbag module. FIG. 4 is a rear perspective view showing the handle assembly.
As shown in FIGS. 2 and 4, the handle assembly 40 includes left and right handle bars 41, a handle base 42, and a bridge 46. The handle base portion 42 is configured in a cylindrical shape, and a handle bar 41 is attached to each side portion in the vehicle left-right direction. A bridge 46 extending in the left-right direction of the vehicle is fixed to the lower end of the handle base 42. Inner tubes 16 a are respectively held at both left and right ends of the bridge 46. The stem pipe 31 is inserted into the handle base 42 and the bridge 46. Thereby, the handle bar 41 can be steered, and the front wheel 2 held by the front fork 16 is steered by the steering of the handle bar 41.

The handle bar 41 includes a connection portion 43 extending from the handle base portion 42 in the left-right direction of the vehicle, a rise portion 44 extending upward from the connection portion 43, and a grip portion 45 extending from the upper end of the rise portion 44 in the vehicle left-right direction. Consists of.
The handle base 42 has a stem pipe 31 erected on the upper surface of the front end of the main frame 30 inserted therein.
As shown in FIG. 3, a steering head 32 is attached to the upper end portion of the stem pipe 31. The steering wheel base 42 is rotatably supported between the main frames 30 by a steering head 32 and a bearing (not shown) mounted below the bridge 46.

An attachment portion 33 for attaching the airbag module 50 is provided at the upper end of the stem pipe 31. The attachment portion 33 is configured by bending a plate-like member so as to have a U-shape when viewed from the vehicle front-rear direction. The attachment portion 33 is provided so as to protrude upward from the steering head 32 in a state where the steering head 32 is mounted on the stem pipe 31. The upper left and right ends of the attachment portion 33 are attached to the lower surface of the retainer 52. The attachment portion 33 avoids the inflator 51 projecting downward from the lower surface of the retainer 52, and fixes the airbag module 50 to the steering head 32. Yes.
Thus, the airbag module 50 can be attached to the attachment portion 33 in a state where the handle base portion 42 is attached to the stem pipe 31 and the steering head 32 is attached. The airbag module 50 is integrally fixed to the stem pipe 31 by the attachment portion 33.

The airbag module 50 is positioned between the rise portions 44 of the handle bar 41 by being attached to the attachment portion 33. The rise portion 44 is configured to extend outward in the left-right direction of the motorcycle 1 while extending upward from the connection portion 43. A sufficient distance is provided between the rise portions 44 so that the airbag module 50 and the rise portion 44 do not come into contact with each other when the handle bar 41 is rotated.

The airbag module 50 includes an inflator 51 provided at a lower portion of the airbag module 50, a retainer 52 provided on the inflator 51, and an airbag 52 a that is folded and held in the retainer 52.
And the opening part 52b is provided in the rear surface lower part of the vehicle front-back direction of the retainer 52. As shown in FIG.

The airbag module 50 is held in the front cover 20 and the handle cover 23 in a state where the airbag module 50 is attached to the stem pipe 31. The front cover 20 is supported by the main frame 30. The handle cover 23 is supported by the handle bar 41 and is configured to be rotatable integrally with the grip portion 45 of the handle bar 41.
A sufficient clearance for turning the handle cover 23 is provided between the inner peripheral portion of the handle cover 23 and the airbag module 50.

A meter 60 is disposed above the airbag module 50 and between the grip portions 45. Thereby, the airbag module 50 is arrange | positioned between the stem pipe 31 and the meter 60 by vehicle side view.
The airbag module 50 is disposed in front of the end portion 45a of the grip portion 45 in the vehicle front-rear direction.
The meter 60 is attached to the handle cover 23 and rotates together with the handle cover 23 by steering the grip portion 45.
The airbag module 50 is disposed between the handle cover 23 and the inner cover 22. As shown in FIG. 2, the inner cover 22 covers the handle base 42 and the airbag module 50 from the rear in the vehicle front-rear direction. The handle cover 23 has the stem pipe 31 positioned on the rotation shaft, and covers the upper portion of the airbag module 50 from above in the vehicle vertical direction. For this reason, the airbag module 50 is located between the handle cover 23 and the inner cover 22 even when the handle cover 23 is rotated by the rotation of the handle bar 41.

Next, the operation of the above configuration will be described.
When the grip portion 45 of the handle bar 41 is rotated, the handle base portion 42 connected to the handle bar 41 rotates about the stem pipe 31 as a rotation axis. Then, together with the bridge 46 connected to the handle base 42, the front fork 16 rotates and the front wheel 2 is steered.
That is, the handle base 42 attached to the outside of the stem pipe 31 rotates integrally with the handle bar 41 without rotating the stem pipe 31, and the front wheel 2 is steered.

Since the airbag module 50 is disposed on the stem pipe 31 via the attachment portion 33, the position and posture of the airbag module 50 with respect to the main frame 30 are independent of the rotation of the handle bar 41. Fixed. For this reason, according to the position of the opening part 52b of the retainer 52, the opening part opened when the airbag 52a is expand | deployed can be provided in the inner cover 22, and the airbag 52a can be expand | deployed. The opening 52b of the retainer 52 can be exposed from the inner cover 22.

The handle bar 41 extends outward from the handle base 42 in the left-right direction of the vehicle. For this reason, the space which arrange | positions the airbag module 50 above the stem pipe 31 with which the handle | steering-wheel base 42 is mounted | worn is comprised.
The airbag module 50 is supported by the main frame 30 via the stem pipe 31. Thereby, the load of the airbag module 50 is supported by the main frame 30. The operation of the handle bar 41 is not affected by the weight of the airbag module 50.
The airbag module 50 is disposed between the handle bars 41, and the rise portion 44 of the handle bar 41 does not contact the airbag module 50 around the airbag module 50 even if the handle bar 41 is rotated left and right. .
Thereby, the airbag module 50 can be disposed in the vicinity of the handle bar 41 without affecting the operation of the handle bar 41.

Next, the operation of the airbag module 50 will be described.
When an acceleration sensor (not shown) of the motorcycle 1 detects an acceleration equal to or higher than a predetermined value, a control unit (not shown) activates the inflator 51 of the airbag module 50. Thereby, the inflator 51 generates gas.
The gas generated by the inflator 51 is supplied to the airbag 52a in the retainer 52.
The gas flowing into the airbag 52a inflates the airbag 52a.
The inflating airbag 52a opens the opening 52b of the retainer 52 and is deployed toward the rear of the vehicle, and opens the opening of the inner cover 22 and deploys rearward. After that, the airbag 52a deployed a predetermined distance rearward is deployed upward as shown in FIG.

Since the airbag 52a is deployed rearward and protrudes from the inner cover 22, and then deployed upward, the retainer 52 and the inner cover 22 are split open while the gas pressure is higher than the inflator 51. Further, the airbag 52a can be deployed rearward. And it expand | deploys upwards and protects a passenger | crew.
Thus, since the airbag 52a is deployed, the airbag module 50 can be disposed in a limited space in front of the occupant and close to the upper body of the occupant. And the airbag 52a can be expand | deployed ahead of a driver | operator's upper body, and the upper body part can be protected from a head to a chest.

As described above, according to the embodiment to which the present invention is applied, the airbag module 50 (airbag device) deploys the airbag 52a, the retainer 52 that houses the airbag 52a, and the airbag 52a. An inflator 51 that generates gas. The airbag module 50 is fixed to the main frame 30 of the motorcycle 1 (vehicle), and is disposed on the stem pipe 31 inserted into the handle base 42 that connects the handle bar 41 to the left and right.
According to this configuration, the airbag module 50 can be disposed in a constrained space on the stem pipe 31. Further, the airbag module 50 can be arranged without changing the layout on the appearance. Further, an impact during operation of the airbag module 50 can be received by the main frame 30 via the stem pipe 31. Thereby, the change of the attitude | position of the airbag module 50 can be reduced at the time of expansion | deployment of the airbag 52a.
And the airbag module 50 can be arrange | positioned in the position close | similar to the upper body part from a passenger | crew's head to a chest in the up-down direction. Thereby, while being able to comprise the airbag 52a compactly, the time concerning expansion | deployment can be shortened.

The airbag module 50 is disposed between the meter 60 mounted on the handle bar 41 and the stem pipe 31.
With this configuration, the airbag module 50 can be disposed while maintaining the positional relationship between the handle bar 41 and the meter 60.

Further, the airbag module 50 is disposed in front of the left and right end portions 45a of the handle bar 41 in a side view of the motorcycle 1 (vehicle).
With this configuration, the airbag module 50 can be disposed in front of the occupant and at a position close to the upper body part from the head to the chest.

The airbag module 50 is disposed between the handle cover 23 that covers the upper portion of the handle bar 41 and the inner cover 22 that covers the lower portion of the handle bar 41 from the rear.
With this configuration, the airbag module 50 can be arranged without changing the external layout of the motorcycle 1.

In the above embodiment, the motorcycle 1 is described as an example of a saddle-ride type vehicle. However, the present invention is not limited to this, and the present invention includes 3 front wheels or two rear wheels. The present invention can be applied to a saddle-type vehicle with wheels and a saddle-type vehicle having four or more wheels.

DESCRIPTION OF SYMBOLS 10 Seat 16a Inner tube 20 Front cover 21 Front side cover 22 Inner cover 30 Main frame 31 Stem pipe 32 Steering head 33 Mounting part 40 Handle assembly 41 Handle bar 42 Handle base part 43 Connection part 44 Rise part 45 Grip part 45a End part 46 Bridge 50 Airbag Module 51 Inflator 52 Retainer 52a Airbag 60 Meter

Claims

An airbag (52a), a retainer (52) for housing the airbag (52a), and an inflator (51) for generating gas for deploying the airbag (52a),
An air for a saddle-ride type vehicle, characterized in that it is disposed on a stem pipe (31) that is fixed to a vehicle frame (30) and inserted into a handle base (42) that connects a handlebar (41) to the left and right. Bag device.
The airbag of a saddle-ride type vehicle according to claim 1, wherein the airbag is disposed between a meter (60) mounted on the handlebar (41) and the stem pipe (31) in a side view of the vehicle. apparatus.
The airbag device for a saddle-ride type vehicle according to claim 1 or 2, wherein the airbag device is disposed in front of the left and right ends (45a) of the handle bar (41) in a side view of the vehicle.
The handlebar (23) covering the upper part of the handlebar (41) and the inner cover (22) covering the lower part of the handlebar (41) from the rear are arranged between the handlebar (41) and the inner cover (22). An airbag device for a saddle-ride type vehicle according to any one of the preceding claims.