articulated vehicle

Abstract

A semi-trailer vehicle comprising: a steering system (31) comprising a steering rod (21); a display or speedometer (53) arranged in front of the steering rod (21) and at a lower height than the steering rod (21); and an airbag device (60) arranged in the steering rod (21), characterized in that the airbag device (60) comprises an inflation device (63); an airbag (62) which inflates with the gas released by the inflation device (63); and a holder (61) which receives the airbag (62); wherein the airbag (62) comprises an airbag main body (71), the airbag main body (71) having an upwardly directed deployment section (71a) which inflates above the steering rod (21);and a downwardly directed deployment section (71b) which deploys below the steering rod (21), wherein the downwardly directed deployment section (71b) is provided with a circumference reduction section (73) which deploys with a shorter circumference in a vertical direction than that of the right and left circumferences; and wherein the upwardly directed deployment section (71a) has a bead section (72) which projects downward and forward in relation to the airbag main body (71), which deploys from above the steering rod (21) and which bulges in the direction of the indicator (53) during deployment.

Description

[Technical area]

[0001] The present invention relates to a semi-trailer vehicle or a vehicle with a driver saddle. [State of the art]

[0002] An airbag device installed in a semi-trailer vehicle is generally known (see, for example, patent literature 1). Patent Literature 1 describes the configuration in which an airbag device is mounted on a body frame is arranged between a steering system and a fuel tank and a holding element extending from the fuel tank connected to a deployed airbag. In Patent Literature 1, the holding member holds the deployed airbag, to adjust the position of the airbag during deployment. [Citation list] [Patent literature]

[0003] [Patent Literature 1] JP-A No. H10-35564 [Summary of the invention] [Technical problem]

[0004] There is currently a requirement that the airbag device should be located in the handlebar. However, it is difficult the technology described in Patent Literature 1 for an airbag mounted on a body frame to to apply the posture control of an airbag mounted in a handlebar.

[0005] The present invention has been made in view of the above circumstances, and it is an object to provide a To provide a semi-trailer vehicle capable of maintaining the posture of an airbag during deployment in the semi-trailer To stabilize a vehicle that contains an airbag device in a handlebar. [Solution to the problem]

[0006] A semi-trailer vehicle is equipped with a steering system comprising a handlebar, a display, the handlebar and is located at a lower height than the handlebar, and an airbag device which is arranged in the handlebar. In the saddle vehicle, the airbag device comprises a inflator, an airbag that inflates with the gas released by the inflator, and a Bracket that holds the airbag. The airbag contains a bead portion that moves toward the Display bulges. [Advantageous effects of the invention]

[0007] In the saddle vehicle containing the airbag device in the handlebar, it is possible to equip the saddle vehicle with to provide simple stabilization of the position of the airbag during deployment. [Brief description of the drawings] [Fig. 1] Fig. 1 is a side view of a semi-trailer vehicle according to an embodiment of the present Invention. [Fig. 2] Fig. 2 is a view showing the periphery of a handlebar when the vehicle with saddle is viewed from above and viewed from behind. [Fig. 3] Fig. 3 is a sectional view along line III-III of Fig. 2. [Fig. 4] Fig. 4 is a left side view showing a main part of the semi-trailer vehicle with an airbag after shows development. [Fig. 5] Fig. 5 is a view showing a main part of the semi-trailer vehicle with the airbag after deployment, seen from above and from the front. [Fig. 6] Fig. 6 is a perspective view of the airbag after deployment, seen from the front and left side. [Fig. 7] Fig. 7 is a diagram showing a main part of the airbag. [Fig. 8] Fig. 8 is an explanatory diagram when a user or driver is in contact with the airbag after deployment. collided. [Description of the embodiments]

[0008] In the following, an embodiment of the present invention will be described with reference to the drawings Please note that in the description, directional terms such as front and back, right and left and top and bottom are identical to directions in relation to a vehicle body, unless they are specifically are specified.

[0009] The reference symbol FR shown in each drawing denotes a front side of the vehicle body, the Reference symbol UP denotes an upper side of the vehicle body and reference symbol LH denotes a left side the vehicle body. [Embodiment]

[0010] Fig. 1 is a side view of a semi-trailer vehicle 10 according to the embodiment of the present invention.

[0011] The semi-trailer vehicle 10 is a vehicle with a body frame 11, a body frame 11 carried drive unit 12, a front fork 14 which carries a steerable front wheel 13, a swing arm 16 which Rear wheel 15, and a seat or saddle 17 for a user.

[0012] The saddle vehicle 10 is the vehicle on which the user sits and rides on the seat 17. The seat 17 is arranged above a rear part of the body frame 11.

[0013] The body frame 11 comprises a head tube 18 which is fixed to a front end portion of the body frame 11, a front frame 19 positioned at a rear side of the head pipe 18, and a rear frame 20 positioned at a rear side of the front frame 19. A front end portion of the front frame 19 is connected to the head tube 18.

[0014] The seat 17 is supported by the rear frame 20.

[0015] The front fork 14 is carried by the steering tube 18 so that it can be freely steered to the right and left. Front wheel 13 is carried by an axle 13a which is arranged at a lower end portion of the front fork 14. An upper end portion of the front fork 14 is attached to a handlebar 21 for steering, which can be grasped by the user becomes.

[0016] The swing arm 16 is carried by a pivot shaft 22, which is supported on the body frame 11. The Pivot shaft 22 is a shaft that extends horizontally in the direction of the vehicle width. The pivot shaft 22 is a front end section of the swing arm 16. The swing arm 16 swings in the vertical direction around the Swivel shaft 22.

[0017] The rear wheel 15 is carried by an axle 15a which is fixed to a rear end portion of the swing arm 16 is arranged.

[0018] The drive unit 12 is arranged between the front wheel 13 and the rear wheel 15 and is driven by Body frame 11 worn.

[0019] The drive unit 12 is an internal combustion engine. The engine 12 comprises a crankcase 23 and a Cylinder section 24 in which a reciprocating piston is located. The cylinder part 24 has an outlet opening to which a Outlet device 25 is connected.

[0020] The power of the drive unit 12 is transmitted via a drive force transmission element which connects the drive unit 12 with the rear wheel 15, is transferred to the rear wheel 15.

[0021] The semi-trailer vehicle 10 comprises a front fender 26 covering the front wheel 13 from above, a rear Mudguard 27, which covers the rear wheel 15 from above, steps 28 on which the user places his feet, and a Fuel tank 29 in which the fuel to be used by the drive unit 12 is stored.

[0022] The front mudguard 26 is attached to the front fork 14. The rear mudguard 27 and the foot steps 28 are arranged below the seat 17. The fuel tank 29 is supported by the body frame 11.

[0023] The saddle vehicle 10 according to the embodiment is a scooter-type saddle vehicle having a seat 17 on which a user is to sit astride. The drive unit 12 of the saddle vehicle 10 is a unitary oscillating motor that Functions of an engine as a drive source for the rear wheel 15 and the swing arm 16 which supports the rear wheel 15. In the saddle vehicle 10, the steps or steps 28 on which the driver places his right and left feet are Step shelves provided as a pair to the right and left below and in front of the seat 17.

[0024] The saddle vehicle 10 has a steering system 31 comprising a pair of right and left front forks 14. The Steering system 31 comprises a steering shaft 32, which is pivotally mounted on the steering tube 18. A laterally extending bridge element 33 is attached to a lower end of the steering shaft 32. The upper sections of the pair from the right and left front forks 14 are connected to the right and left ends of the bridge element 33. The pair of right and left front fork 14 is arranged on the right and left side of the front wheel 13 to support the front wheel 13 to support.

[0025] Fig. 2 is a view showing the surroundings of the handlebar 21 when the saddle vehicle 10 is viewed from above and from viewed from behind.

[0026] A plate-shaped steering column 34 is arranged at an upper end of the steering shaft 32. On the steering column 34 A pair of right and left handlebar holders 35 is arranged. The handlebar 21 is attached to the handlebar holders 35 The handlebar 21 comprises a central section 21a of the handlebar, which is attached to the handlebar holders 35 and extends in the lateral direction, as well as a right and a left extension section 21b, which extend from the outer end in the lateral direction of the middle Section 21a of the handlebar extend outwards in a lateral direction.

[0027] The steering system 31 in this embodiment essentially comprises the steering shaft 32, the bridge element 33, the pair of right and left front forks 14, the handlebar column 34, the pair of right and left handlebar holders 35 and the Handlebar 21.

[0028] Handlebar switches 36a, 36b are respectively controlled by the right and left pair of right and left extension sections 21b. The handles 37a, 37b are respectively on the right and left outer side of the respective handlebar switches 36a, 36b. In addition, each of the handlebar levers 38a, 38b and each of the Rearview mirrors 39a, 39b from a corresponding one of the right-left pair of the right and left extension sections 21b worn.

[0029] As shown in Fig. 1 and Fig. 2, the semi-trailer vehicle 10 comprises a body cover 40 which Vehicle body including the body frame 11 and the like. The body cover 40 comprises a front cover 41 which covers the head pipe 18 and an upper part of the steering system 31 from the front and from the right and left side, and an inner cover 42 extending continuously from a rear edge of the front Cover 41 extends to cover the head tube 18 and an upper part of the steering system 31 from behind. The Body cover 40 also includes a center cover 43 located below and in front of the seat 17, a Sub-cover 44, which is located under the steps 28 to cover the vehicle body from below, and a rear side cover 45 located under the seat 17 to cover the rear frame 20 from the side.

[0030] A front part of the middle cover 43 extends continuously from a lower part of the inner Cover 42. The center cover 43 is located on the inside of the driver’s right and left legs, with the legs extend from the seat 17 to the steps 28. Viewed from the side of the vehicle, the inner Cover 42, the middle cover 43 and a front side of the seat 17 have a downwardly recessed spreading space or Straddling space 43a. The user can straddle the saddle vehicle 10 over the straddling space 43a or straddle it sit on it when he / she mounts or dismounts the semi-trailer vehicle 10.

[0031] Fig. 3 is a sectional view taken along line III-III of Fig. 2.

[0032] A headlight 51 is arranged at a lower part of a front portion of the front cover 41. A Windshield 52 is attached to an upper part of the front section of the front cover 41. The The windshield 52 is tilted backwards in the side view of the vehicle. The windshield 52 consists of Materials that are translucent, allowing the user to see an area in front of him through the windshield 52 can be visually recognized. The width of the windshield 52 from right to left is smaller than the length between the left and right inner ends of the respective right and left handles 37a, 37b (see Fig. 2).

[0033] On the back of the windshield 52 and above the headlight 51 there is a display or Instrument panel 53 is arranged, which displays information about the semi-trailer vehicle 10, such as the vehicle speed and / or similar. The display 53 is arranged in front of the handlebar 21. The display 53 is in plan view of from right to left than from front to back (see Fig. 2). In the side view of the vehicle body, the Display 53 is arranged below an upper handlebar end line L2 (see Fig. 3), which extends horizontally through an upper end of the handlebar 21.

[0034] The display 53 includes a housing 54 which houses the main body of the display and a display screen 55, which is arranged on top of the housing 54. The housing 54 has the shape of a flat box and is arranged so that the direction of the through-thickness is vertical. In plan view, the housing 54 is in The display 53 is located centrally above the steering tube 18 and in front of the handlebar column 34. The display 53 is arranged so that the screen 55 on the top faces backwards is inclined downwards so that the display 53 is clearly visible to the driver who is above and behind the display 53. The display 53 is attached to the vehicle body so that the display 53 cannot be moved in the right and left directions is rotated even if the handlebar 21 is steered in the right and left directions.

[0035] The display 53 is formed by an opening 56a (see Fig. 2) of a laterally extending Display cover 53 is visible at the front. The display cover 56 is shaped so that it fits with the screen 55 The display cover 56 is arranged on the front cover 41. At a front end of the Display cover 56 is a screen-shaped shaped display panel 57, which extends in front of the display 53 upwards towards the rear. Display panel 57 covers the display 53 from above and from the front. The display panel 57 corresponds to an upper portion of a front surface portion of the front cover 41, and the upper portion extends further to above than the display 53. The display panel 57 is arranged so that the top of the display 53 is visible from above and from cannot be illuminated at the front. The indicator visor 57 is not transparent and has a lower light transmittance than the windshield 52. The display visor 57 has a smaller width from right to left than the Windshield 52.

[0036] As shown in Fig. 2, Fig. 3, in the embodiment, an airbag device 60 is mounted on the handlebar 21 The airbag device 60 is arranged in a central area in the left-right direction of the handlebar 21. The airbag device 60 is arranged in the embodiment so that it covers the steering column 34 when viewed from above. In other words, the airbag device 60 is on the extension line L1 of the axis line of the steering shaft 32 arranged.

[0037] The airbag device 60 comprises a box-shaped bracket 61, an airbag 62 which is mounted in the bracket 61 is housed, an inflator 63 which releases gas into the airbag 62, and a cover 64 which forms a top of the Holder 61 closes. A space surrounded by the holder 61 and the cover 64 forms an airbag Holding section 60a.

[0038] The holder 61 has the shape of an approximately rectangular plate (see Fig. 2). The inflation device 63 is mounted on a top of the holder 61. The inflation device 63 is attached to the holder 61 and in a central Area in the direction of the vehicle width of the bracket 61. The inflator 63 comprises a cylindrical Housing 63a. In the housing 63a, a gas-forming agent and an initiator are arranged, which the gas-forming agent causes a gas-forming reaction to begin. The trigger includes an ignition device.

[0039] The airbag 62 is located in the airbag support part 60a, possibly in a folded state.

[0040] The cover 64 is fixed to the bracket 61 by cutting an outer peripheral surface thereof into a peripheral edge portion of the bracket 61. The cover 64 includes a gap portion 64a which splits, when the airbag 62 deploys, and a fixed portion 64b attached to an opening of the holder 61, also after the airbag 62 has deployed.

[0041] On the underside of the holder 61, a hook part 65 is formed, which is hooked onto the handlebar 21. The Hook part 65 has the shape of a metal plate. The hook section 65 is approximately S-shaped or curved. The hook part 65 is open at the front. The handlebar 21 is inserted into the Hook portion 65 is inserted so that the hook portion 65 can be hooked onto the handlebar 21. The hook portion 65 is arranged between the handlebar holders 35. The open part of the hook part 65 is, for example, smaller than the diameter the handlebar 21. This may make it difficult to remove the handlebar 21 from the hook part 65, after it has been hooked into the hook part 65 through the open part.

[0042] In addition, a downwardly extending insertion portion 66 is formed in front of the hook portion 65. A claw portion 66a is formed at the front end (lower end) of the insertion portion 66. The claw portion 66a is inserted into an insertion hole 34a formed in a front end of the handlebar column 34. Thereby the insertion section 66 is held in the handlebar column 34.

[0043] The airbag device 60 in this embodiment is characterized by the simple configuration with the hook part 65 and the insert part 66 on the handlebar 21. Therefore, the airbag device 60 is easy to attach. In addition, the airbag device 60 may be used instead of the configuration of the airbag device 60 mounted on the handlebar 21 under Using the hook portion 65 and the insertion portion 66, in the form of the holder 61 which is carried by the handlebar 21.

[0044] The semi-trailer vehicle 10 comprises an acceleration sensor (not shown) for detecting an acceleration acting on the semi-trailer Vehicle 10 acting shock. The acceleration sensor is electrically connected to a control unit (not shown) of the semi-trailer vehicle 10, and the control unit is electrically connected to the inflation device 63. The Control unit is a hardware with a processor, a memory and / or similar. The control unit determines on the Based on a detected acceleration, whether the airbag device 60 should be triggered or not. If the Airbag device 60 is to be triggered, the control unit actuates the inflator 63 to inject gas into the airbag 62 The airbag 62 expands due to the gas pressure and deploys. In this case, the control unit does not need to necessarily be a control unit for the vehicle itself, but can also be an airbag control unit. With other In other words, the control unit can be an ECU (Electronic Control Unit) that is responsible for Airbag 62 was developed, and the ECU can be independent of a vehicle control ECU.

[0045] When the airbag device 60 is to be triggered, the control unit actuates the inflator 63 to supply gas into the airbag 62. The airbag 62 expands due to the gas pressure, so that the airbag 62 is deployed from the Bracket 61 unfolded outwards.

[0046] Fig. 4 is a left side view showing a main part of the semi-trailer vehicle 10 with an airbag 62 after Fig. 5 is a view showing a main part of the semi-trailer vehicle 10 with the airbag 62 after deployment shows, seen from above and from the front.

[0047] In the present embodiment, the state ''during deployment'' is referred to as a state in in which the inflator 63 is in operation and the airbag 62 is in the middle of its expansion. The state ´´after deployment´´ is referred to as a state in which the operation of the inflator 63 is completed and the Airbag 62 expands to a necessary and sufficient extent. The ´´front´´ of the airbag 62 is also the Part that can be seen from the front of the semi-trailer vehicle 10 after deployment. Furthermore, The “rear” of the airbag 62 is an area seen from behind after deployment.

[0048] The airbag 62 is formed into a bag shape by sewing the base fabric. The airbag 62 comprises in this Embodiment, a bag-shaped main chamber (airbag main body) 71 which expands in front of a user R, and a tubular sub-chamber (bulge part) 72, which is connected to the front of the main chamber 71 and is located in front of the main chamber 71 bulges. The airbag 62 is configured in this embodiment to be located behind the handlebar 21 unfolds and also unfolds upwards and downwards on the handlebar 21. In Fig. 4 and Fig. 8, a dashed line L is a horizontal line passing through a lower end of a connecting portion 70 from the side of the vehicle body In this embodiment, the dashed line L is lower than the upper end line L2 of the handlebar. The dashed Dot line L is one of the lines for dividing between an upper chamber section 71a and a lower Chamber section 71b. The airbag 62 is deployed in a position below the handlebar 21.

[0049] The airbag 62 has a connecting portion 70 (see Fig. 3) which is connected to the inflator 63. The connecting portion 70 is connected so as to cover the inflator 63 from the outer periphery, and is attached to the bracket 61. The main chamber 71 is connected to the connecting section 70. Thus, When the inflator 63 is actuated, the gas of the inflator 63 is pumped through the connecting section 70 into the Main Chamber 71.

[0050] Fig. 6 is a perspective view of the airbag 62 after deployment, seen from the front and from the left.

[0051] The main chamber 71 of the airbag 62 comprises the upper chamber section (upwardly directed Deployment section) 71a, which after deployment curves upwards over the handlebar 21, and the lower Chamber section (downwardly directed deployment section) 71b, which, after deployment, extends downwards over the Handlebar 21 is curved. The connecting section 70 is between the upper chamber section 71a and the lower Chamber section 71b is arranged. The connecting section 70 is arranged in a central area in the direction of the The gas flows from the inflator 63 through the connecting section 70 into the Main chamber 71. When the inflator 63 is actuated, the gas is configured to easily enter the upper part of the chamber 71a and the lower part of the chamber 71b at approximately the same time. In other words, In Fig. 4, Fig. 8, the upper chamber section 71a bulges further upwards than a higher line L2 of the upper Handlebar end line L2 and the dashed line L. Likewise, the lower chamber section 71b curves further downwards than a lower line L1 of the upper handlebar end line L2 and the dashed line L.

[0052] In the lower part of the chamber 71b, a vertically extending circumferential reduction section 73 arranged in a position that becomes the front surface after deployment. The circumference reduction portion 73 is a Area that has a shorter circumference in terms of appearance compared to that in the right and left adjacent areas (periphery). In other words, since the airbag 62 is usually deployed with gas expands, the airbag 62 enters a state in which it expands from the inside outwards and slightly into a curved surface state in which the airbag is convexly curved outwards. Thus, the circumference of the Airbags 62 to a length that follows the convex outwardly curved shape. In contrast, in the Circumference reduction section 73 compared to the right and left adjacent areas of the Circumference reduction section 73 the deployment with a shorter length in the circumferential direction (vertical direction) In other words, a difference between the The circumference of the right and left adjacent areas of the circumference reduction section 73 and the circumference of the Circumference reduction section 73 causes the airbag 62 to be inflated with the circumference of the circumference reduction section 73 formed wrinkles are unfolded.

[0053] For the circumference reduction section 73, in this embodiment, the top and bottom of the Circumference reduction section 73 with a shorter retaining band (retaining band element) 73a compared to the periphery As a result, the circumference reducing portion 73 enters a state incomplete unfolding in the vertical direction and is with a shorter circumference in the vertical direction in the Compared to the circumference unfolded. Instead of the holding cable 73a, the circumference reduction section 73 can be replaced by a area can be configured by applying a base fabric in the direction from front to back on the top of the circumference is sewn.

[0054] A pair of right and left external vent holes 74 are formed in the front of the upper chamber part 71a The external vent hole 74 is a hole for venting the airbag 62 to the outside. The external Ventilation holes 74 facilitate the absorption of the impact on the user R when he or she is in the air after the deployment of the Airbags 62 comes into contact with the airbag 62.

[0055] At the front of the chamber top 71a, below the external or outer vent holes 74 and An internal vent hole 75 is formed above the connecting section 70 (see Fig. 3, Fig. 6). The inner vent hole 75 is formed in a central portion in the lateral direction. The inner vent hole 75 is configured to prevent gas from escaping due to a lower pressure than the outer vent holes 74. The sub-chamber 72 is connected around the inner vent hole 75 to inner vent hole 75. The interior of the main chamber 71 is connected to the inner vent hole 75 Inside the lower chamber 72.

[0056] The sub-chamber 72 is shaped so that it expands in the form of a cylinder with a bottom. In particular, the Lower chamber 72 has a cylindrical lower chamber tube section 72a extending from the front of the upper chamber section 71a extends downwards and forwards, and a flat-shaped front sub-chamber end section 72b, which is arranged to block the front end of the lower chamber tube section 72a. Here, the Outer surface of the lower chamber tube section 72a and the outer surface of the upper chamber section 71a of the Main chamber 71 are connected in such a way that they form an angle of less than 180 degrees. In other words: The Outer surface of the lower chamber tube section 72a is connected to the outer surface of the upper chamber section 71a, to form a serrated, annular outer peripheral portion 77.

[0057] As shown in Fig. 4, for the sub-chamber 72, the size and the connection position after deployment adjusted so that after deployment, the front end portion 72b of the lower chamber on the screen 55 of the display or instrument panel 53 and the tube section 72a of the lower chamber rests on the visor 57 of the display.

[0058] Fig. 7 is a schematic diagram of a main part of the airbag 62.

[0059] In this embodiment, the inner vent hole 75 is formed by a flexible, openable and closable Base fabric (check valve) 76 closed. The base fabric 76 to be opened / closed or open / closed is large enough to cover the inner vent hole 75. The base fabric 76 for opening / closing, for example, has a square shape. The open / closed base fabric 76 is arranged outside the main chamber 71. At a Side portion of the open / closed base fabric 76 is along one side of the open / closed Base fabric 76 a sewing section 76a for sewing the open / closed base fabric 76 to the main chamber 71 As a result, the base fabric 76 to be opened / closed extends under normal conditions along the outer surface of the main chamber 71 and is held in a locking position (the dashed-dotted line of Fig. 7), to block the inner vent hole 75. And when gas flows from the main chamber 71 into the sub-chamber 72, the sewing section 76a serves as the base end, so that the open / closed base fabric 76 is pressed by the gas and deformed to reach an open position (the solid line in Fig. 7). This causes the inner Vent hole 75 is opened so that the gas can flow into the sub-chamber 72. When the gas is about to escape from the sub-chamber 72 into the main chamber 71, the opened / closed base fabric 76 returns to the In this way, the internal vent hole 75 is blocked to prevent the gas from flowing back from the sub-chamber 72 into the main chamber 71. The base fabric 76, which can be opened / closed, functions as a check valve.

[0060] Fig. 8 is an explanatory diagram when the user R collides with the airbag 62 after deployment.

[0061] As shown in Fig. 1 to Fig. 8, in the semi-trailer vehicle 10, when an impact is detected, the inflation device 63 actuated to expel gas from the inflator 63. When the gas exits the inflator 63, the airbag 62 expands due to the gas and unfolds to the outside of the holder 61. At this time, the Cover 64 is split open by the airbag 62, and the airbag 62 pushes the remaining cover 64 away to deploy.

[0062] When the gas flows into the main chamber 71 of the airbag 62, the upper part of the chamber 71a and the lower part of the chamber 71b. At this time, as seen from the side of the vehicle, the upper part of the chamber 71a upwards or forwards with respect to the connecting section 70. The lower part of the chamber 71b extends downward or rearward with respect to the connecting portion 70.

[0063] Since the circumference reduction portion 73 is arranged in the lower chamber portion 71b, the airbag deploys 62 during the deployment of the airbag 62 so that the base fabric is stretched around the circumference reduction section 73 Therefore, a force acts on the front end (rear end) of the front side (bottom side) of the chamber bottom part 71b, which is pulled by the handlebar 21, so that the chamber bottom part 71b unfolds so that it moves downwards and rotates forward around the handlebar 21. As shown in Fig. 4 and Fig. 8, the lower part of the chamber 71b moves further down than the upper end line L2 of the handlebar and the dashed line L, so that the lower part of the Chamber 71b can easily unfold and rests against the inner cover 42. Thus, the main chamber 71 easily enters a state in which it extends in the vertical direction, so that the upper position of the chamber 71a is slightly above the handlebar 21 and the lower portion of the chamber 71b can be positioned slightly below the handlebar 21. In particular, the upper portion 71a of the chamber is positioned higher than the upper end line L2 of the handlebar and the Dash-dot line L, and the lower portion 71b of the chamber has a part positioned further down than the upper End line L2 of the handlebar and the dash-dot line L. In other words, the airbag 62 is easily in a suitable Position to catch the user R unfolded.

[0064] In the upper part of the chamber 71a, during the unfolding by the inflowing gas, the gas escapes through the inner Vent hole 75 into the lower chamber 72. The gas flowing out through the inner vent hole 75 pushes the opening / closing base tissue 76 and flows into the lower chamber 72. This causes the lower chamber 72 to bulge due to the gas towards a lower front section. At this time, the front End portion 72b of the sub-chamber to the display screen 55 of the display 53 or the display cover 56. In addition the lower chamber tube section 72a abuts the front of the sight 57 of the indicator. In this way, the upper part 71a of the Main chamber 71 supported by the indicator 53 and the indicator sight 57 via the sub-chamber 72.

[0065] As shown in Fig. 8, the airbag 62 is deployed upon contact of the user or driver R with the airbag 62 in the lower Part of the chamber 71b of the airbag 62 is pressed against the inner cover 42. In addition, the airbag 62 is pressed in the upper part the chamber 71a via the sub-chamber 72 against the display 53 and the display panel 57. In this way, the airbag 62 is subjected to an appropriate reaction force from the front so that the airbag 62 can protect the user R while the airbag 62 arranged in the handlebar 21 is held in a suitable position.

[0066] In particular, the base fabric 76, which acts as a check valve, is in the internal vent opening 75 Thus, by preventing backflow after a reduction in the power of the Inflator 63 slightly prevents a reduction of the internal pressure in the lower chamber 72, so that the upper part the chamber 71a is easily and adequately received by the display 53 and the measuring device sight 57.

[0067] As described above, according to the embodiment to which the present invention is applied, a saddle Vehicle comprises: a steering system 31 comprising a handlebar 21; a display 53 arranged in front of the handlebar 21 and is arranged at a height level lower than the handlebar 21; and an airbag device 60, which is arranged in the handlebar 21. In the saddle vehicle, the airbag device 60 comprises: an inflator 63; an airbag 62 which inflates with the gas discharged from the inflator 63; and a bracket 61, which accommodates the airbag 62. The airbag 62 comprises a sub-chamber 72 which, during deployment, moves towards the Display 53 is bulging.

[0068] With this configuration, in the saddle vehicle 10, which includes the airbag device 60 in the handlebar 21, the posture of the airbag 62 during deployment. In this way, the force acting on the user R can be Impact can be effectively reduced.

[0069] In the embodiment, the airbag 62 comprises: a main chamber 71 located at the rear of the handlebar 21 unfolded upwards and downwards; and the lower chamber 72, which in relation to the main chamber mer 71 projects downwards and forwards and unfolds from above the handlebar 21.

[0070] Since the sub-chamber 72 is shaped so that it protrudes downwards and forwards from the main chamber 71, the sub-chamber 72 slightly unfolds and abuts the display 53, so that the reaction force of the display 53 during the Deployment can be absorbed via the lower chamber 72. This allows the position of the airbag 62 to be stabilized become.

[0071] In addition, in this embodiment, a visor 57 is provided which covers the display 53 from the front. Lower chamber 72 rests on the sight 57 of the display during use.

[0072] In this configuration, the sub-chamber 72 rests against the visor 57 of the display, so that the sub-chamber 72 can be easily is prevented from moving forward beyond the indicator 53 when the user R with the airbag 62 in Contact occurs. Therefore, the airbag 62 can deploy under conditions of a stable body position.

[0073] Furthermore, the main chamber 71 in this embodiment comprises: an upper chamber portion 71a, which unfolded upwards towards the handlebar 21, and a lower chamber section 71b, which extends downwards towards the handlebar 21. The lower chamber section 71b is provided with a circumference reduction section 73, which extends a shorter circumference in the vertical direction than that of the right and left circumferences.

[0074] In this configuration, during the deployment of the main chamber 71, the front of the lower part of the Chamber 71b slightly loaded by a force passing through the circumference reducing section 73 in the direction of the handlebar 21 is pulled so that the lower part of the chamber 71b is moved by a force of forward rotation around the handlebar 21 In this way, the lower part of the chamber 71b can be prevented from rotating backwards become.

[0075] In addition, in this embodiment, a holding cable 73a is provided which connects the upper and lower ends of the circumference reduction section 73.

[0076] In this configuration, the circumference reducing portion 73 can be formed by a simple configuration under Using the retaining strap 73a to connect to the surface of the airbag 62.

[0077] Furthermore, in this embodiment, between the main chamber 71 and the sub-chamber 72, an open / closed bottom fabric 76 arranged to prevent the backflow of gas from the sub-chamber 72 into the main chamber 71 to limit.

[0078] With this configuration, the internal pressure in the subchamber 72 can be easily maintained during use so that an appropriate reaction force can be easily absorbed by the measuring device 53.

[0079] Furthermore, in the embodiment, the airbag 62 has a right-left width which is larger than that of a Display cover 56 covering the display 53, and also the right-left width is smaller than a length between the outer ends in the direction of the vehicle width of the right and left handles 37a, 37b. In particular, in this Embodiment of the airbag 62 narrower than a length between the inner ends in the direction of the vehicle width of the right and left handles 37a, 37b.

[0080] With this configuration, the airbag 62 can be easily made compact, so that the airbag device 60 can be made compact. Thus, the airbag device 60 can be easily arranged in the handlebar 21.

[0081] Furthermore, the embodiment includes a handlebar column 34 which is mounted on an upper end portion of the Steering system 31 is arranged to support the handlebar 21. The handlebar column 34 has a Insertion hole 34a penetrating in the vertical direction. The airbag device 60 includes: a hook portion 65, which is hooked onto the handlebar 21, and an insertion section 66 which is inserted into the insertion hole 34a and is fastened.

[0082] With this configuration, the airbag device 60 located in the saddle vehicle 10 can be easily mounted become.

[0083] Furthermore, in the embodiment, an inner cover 42 is provided which covers the steering system 31 from behind The airbag 62 is mounted on the inner cover 42 and the handlebar 21.

[0084] With this configuration, an appropriate reaction force can be obtained from the inner cover 42 during unfolding can be easily absorbed. [Other embodiments]

[0085] The above embodiment illustrates only one aspect of the present invention, and various Variations and applications are optionally possible without departing from the spirit and scope of the present invention to deviate.

[0086] In the above embodiment, the configuration was described in which the sub-chamber 72 is mounted on the sight 57 of the display but not on the front of the handlebar 21. However, the configuration of the lower chamber 72 is not For example, the sub-chamber 72 can be configured to be based on the length between the indicator visor 57 and the handlebar 21 from front to back. At this point, the For example, the lower chamber 72 can be designed to rest lightly against the handlebar 21 by adjusting the position of the Holder 61 is moved backward relative to the handlebar 21, and the like. This allows the lower chamber 72 during use, rest lightly against the front of the handlebar 21. At this point, the unfolding Sub-chamber 72 slightly into a state in which it is between the metering orifice 57 and the lateral direction extending handlebar 21, so that the position of the airbag 62 is slightly stabilized during deployment can be.

[0087] In the above embodiment, a motorcycle having a front wheel 13 and a rear wheel 15 was exemplified as The present invention is not limited to the semi-trailer vehicle 10. The present invention can to a three-wheeled articulated vehicle with two front or rear wheels, a articulated vehicle with four or more wheels be applied. (Configurations supported by the embodiment described above)

[0088] The embodiment described above supports the following configurations. (Configuration 1)

[0089] A saddle vehicle comprises: a steering system comprising a handlebar; a display arranged in front of the handlebar and is arranged at a lower height level than the handlebar; and an airbag device which is arranged in the handlebar. In the saddle vehicle, the airbag device comprises: an inflator; a Airbag that inflates with the gas released by the inflator; and a bracket that holds the airbag and the airbag includes a bulge section that bulges toward the measuring device during deployment.

[0090] With this configuration, the posture of the airbag during deployment in a saddle Vehicle can be stabilized with airbag device in the handlebar. (Configuration 2)

[0091] In the saddle-type vehicle according to configuration 1, the airbag comprises: an airbag main body extending top and bottom of the rear of the handlebar; and the bead portion which is directed downwards with respect to the airbag main body protrudes from the bottom and front and unfolds from above the handlebars.

[0092] Since the bead is shaped to protrude downwards and forwards from the airbag main body, the The bead unfolds slightly and hits the measuring device, so that the reaction force of the display during the unfolding over the The bulge can be absorbed. This stabilizes the position of the airbag. (Configuration 3)

[0093] In the semi-trailer vehicle according to configuration 2, the semi-trailer vehicle also comprises a display or Speedometer visor that covers the display from the front, and the beaded part hits the display during use. visor.

[0094] In this configuration, the beaded part rests against the viewing window of the display, so that the beaded part can be easily is prevented from moving forward beyond the measuring device when the user is in the airbag Contact occurs. Therefore, the airbag can be deployed when the rider maintains a stable posture. (Configuration 4)

[0095] In the case of a semi-trailer vehicle or a vehicle with a saddle according to configuration 3, the bead is in contact with the a front of the handlebar.

[0096] In this configuration, the position of the bead part can be easily stabilized since it is between the visor and the handlebars and the airbag can therefore be deployed stably. (Configuration 5)

[0097] In the saddle vehicle according to any one of configurations 2 to 4, the airbag main body comprises: an upwardly directed deployment section that unfolds upwards over the handlebar; and a downwards directed Deployment section that unfolds downwards over the handlebar, and the downward-facing deployment section is provided with a circumference reduction section which has a shorter circumference in a vertical direction than of the right and left circumference.

[0098] In this configuration, during deployment of the airbag main body, the front of the downward-facing deployment section is slightly subjected to a force which is directed from the circumference reducing section towards the handlebars so that the downward-facing deployment section is supported by a force of forward rotation around the handlebars. In this way, the downward-directed deployment area can be Rotational movement backwards is prevented. (Configuration 6)

[0099] In the semi-trailer vehicle according to configuration 5, the semi-trailer vehicle further comprises a holding element which upper and lower ends of the circumference reduction section.

[0100] In this configuration, the circumference reduction can be achieved by a simple configuration using the Holding element for connection to the surface of the airbag. (Configuration 7)

[0101] In the semi-trailer vehicle according to any one of configurations 2 to 6, the semi-trailer vehicle further comprises a Check valve element that prevents the backflow of gas from the bead or bulge section into the airbag Main body, wherein the check valve element is disposed between the airbag main body and the bead portion is arranged.

[0102] With this configuration, the internal pressure in the bead part can be easily maintained during deployment, so that an appropriate reaction force can be easily absorbed by the measuring device. (Configuration 8)

[0103] In a semi-trailer vehicle according to any one of configurations 1 to 7, the airbag has a right-left width which is greater than that of an ad cover that covers the ad, and a right-left width that is smaller than the length between the right and left handles.

[0104] With this configuration, the airbag can be easily made compact, so that the airbag device can be compact This allows the airbag device to be easily installed in the handlebar. (Configuration 9)

[0105] In the semi-trailer vehicle according to any one of configurations 1 to 8, the semi-trailer vehicle further comprises a Support member arranged at an upper end portion of the steering system to support the steering rod, wherein the support element has an insertion hole formed therein to be penetrated in the vertical direction, and the Airbag device comprises: a hook portion which is hooked to the handlebar; and an insertion portion, which is inserted into the insertion hole and secured.

[0106] With this configuration, the airbag device located in the saddle of the vehicle can be easily installed become. (Configuration 10)

[0107] In the semi-trailer vehicle according to any one of configurations 1 to 9, the semi-trailer vehicle further comprises a Inner cover that covers the steering system from behind, and the airbag is attached to the inner cover and the steering rod recorded.

[0108] With this configuration, an appropriate reaction force during deployment can be easily generated from the inner Cover can be included. [List of reference signs] 10 semi-trailer vehicle with saddle 21 handlebars 31 Steering 34 Steering column (support pillar) 34a insertion hole 37a handle 37b handle 42 Inner cover 53 Display or speedometer or instrument panel 56 Display cover 57 Sight of the display 60 Airbag device 61 bracket 62 airbags 63 Inflator or inflation device 65 Section of the hook 66 Insert section 71 Main chamber (airbag main body) 71a Upper part of the chamber (upward-facing or triggering part) 71b Lower part of the chamber (downward-facing or triggering part) Lower chamber (bulge or bead section) 72 73 circumference reduction section 73a Holding rope (holding rope element) 76 Base fabric open / close or open / closed (check valve element)

Claims

1. A semi-trailer vehicle comprising: a steering system (31) comprising a handlebar (21); a display or Speedometer (53) arranged in front of the handlebar (21) and at a lower height than the handlebar (21); and an airbag device (60) arranged in the handlebar (21), characterized in that the airbag device (60) comprises an inflator (63); an airbag (62) which is movable with the air pressure generated by the inflator (63) released gas; and comprises a holder (61) which receives the airbag (62) and the airbag (62) has a bead portion (72) which bulges towards the indicator (53) during deployment.

2. The saddle vehicle according to claim 1, wherein the airbag (62) comprises an airbag main body (71) located at the rear of the Handlebar (21) is unfolded upwards and downwards; wherein the bead portion (72) which is protruding relative to the airbag main body (71) protrudes downwards and forwards, unfolding from above the handlebar (21).

3. A semi-trailer vehicle according to claim 2, further comprising a display visor (57) covering the display (53) from the front, wherein the bead portion (72) rests against the visor (57) of the display during deployment.

4. The semi-trailer vehicle according to claim 3, wherein the bead portion (72) is positioned on a front side of the Handlebar (21).

5. The semi-trailer vehicle according to claim 2, wherein the airbag main body (71) comprises: an upwardly directed deployment portion (71a) located above the Handlebar (21) unfolded; and a downwardly directed deployment section (71b) located below the handlebar (21) unfolds, and wherein the downwardly directed deployment portion (71b) is provided with a circumference reduction portion (73), which unfolds with a shorter circumference in a vertical direction than that of the right and left circumferences.

6. A saddle vehicle according to claim 5, further comprising a tether (73a) connecting the upper and lower ends of the circumference reduction section (73).

7. A semi-trailer vehicle according to any one of claims 2 to 6, further comprising a check valve element (76) which Restricts backflow of gas from the bead portion (72) to the airbag main body (71), wherein the check valve element (76) is arranged between the airbag main body (71) and the bead portion (72).

8. The semi-trailer vehicle according to any one of claims 1 to 6, wherein the airbag (62) has a right-left width which is greater than that of a display cover (56) covering the display (53) and also has a right-left width which is smaller is a length between the right and left handles (37a, 37b).

9. A semi-trailer vehicle according to any one of claims 1 to 6, further comprising a support member (34) mounted on an upper end portion of the steering system (31) is arranged to support the handlebar (21), wherein the support element (34) has an insertion hole (34a) formed therein for penetration in the vertical direction, and the airbag device (60) comprises: a hook portion (65) which is hooked onto the handlebar (21); and a Insertion section (66) which is inserted into the insertion hole (34a) and fixed.

10. A semi-trailer vehicle according to any one of claims 1 to 6, further comprising an inner cover (42) which covers the steering system (31) from behind, whereby the airbag (62) is held on the inner cover (42) and the handlebar (21).

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