JP4745516B2 - Shock absorption structure of a motorcycle with a cabin - Google Patents

Shock absorption structure of a motorcycle with a cabin Download PDF

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Publication number
JP4745516B2
JP4745516B2 JP2001063222A JP2001063222A JP4745516B2 JP 4745516 B2 JP4745516 B2 JP 4745516B2 JP 2001063222 A JP2001063222 A JP 2001063222A JP 2001063222 A JP2001063222 A JP 2001063222A JP 4745516 B2 JP4745516 B2 JP 4745516B2
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vehicle
cabin
body frame
shock absorbing
bumper member
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JP2002264750A (en
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秀樹 秋山
豊一 中村
健康 板橋
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to US10/091,560 priority patent/US6764099B2/en
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Description

【０００１】
【発明の属する技術分野】
本発明は、乗員の乗車空間を有するキャビン付き二輪車の衝撃吸収構造に関する。
【０００２】
【従来の技術】
キャビン付き二輪車の衝撃吸収構造として、特開平１０−６７３７４号「乗降部を備えた車両フレーム」が知られる。
上記技術は、同公報の図３によれば、前輪２（符号は公報に使用された符号を流用した）の上方、且つメインフレームパイプ２０の前方に変形要素５１を配置したものであって、車両前方からに衝撃荷重が加わったときに、この衝撃荷重を変形要素５１で受け、衝撃を緩和しようとするものである。
【０００３】
【発明が解決しようとする課題】
しかし、上記の乗降部を備えた車両フレームでは、変形要素５１（以下、「衝撃吸収部材」と呼ぶ）を前輪２の上方、メインフレームパイプ２０の前方に配置するものなので、衝撃荷重を吸収するために十分な大きさの衝撃吸収部材を設けるのが困難な場合もある。特に、二輪車全般や、原動機の全部又は大部分が運転室の下方にあるキャブオーバ型のトラックなどはフロントノーズがない構造であるため、車長の範囲内では車両の前部に衝撃吸収部材の配置が困難である。
車長の範囲内では車両の前部に衝撃吸収部材の配置が困難である車両においても、例えば、衝撃荷重が加わったときに、この衝撃荷重を効率よく吸収させたいものである。
【０００４】
そこで、本発明の目的は、キャビン付き二輪車に衝撃荷重が加わったときに、この衝撃荷重を効率よく吸収し、乗員の乗車空間の損傷を最小限に抑える技術を提供することにある。
【０００５】
【課題を解決するための手段】
上記目的を達成するために請求項１のキャビン付き二輪車の衝撃吸収構造は、車体フレームと、この車体フレームの上方に形成された乗員の乗車空間と、車体フレームにスライド可能に取付けられ、車両空間を保護するバンパ部材とを有するキャビン付き二輪車の衝撃吸収構造であって、バンパ部材が、先端がＵ字形に形成されるとともに側面視では前輪と重なる位置で段曲げされ、前から乗員へ向かう外力を受けさせるために車長方向に延ばされ、バンパ部材のストレート部が、乗車空間の下又は横に配置され、車体フレームは、中央下部にパワーユニットが配置されるとともに、バンパ部材の後端を受ける受け部が形成され、バンパ部材の後端と受け部との間に衝撃荷重を吸収する衝撃吸収部材を介在させ、衝撃吸収部材の潰し量を衝撃吸収部材の有効潰れ長さと呼ぶときに、この有効潰れ長さを、車体前部から乗車空間前部までの長さとしたことを特徴とする。
【０００６】
車長方向に延ばしたバンパ部材で乗員へ向かう外力を受け、バンパ部材の後部に介在させた衝撃吸収部材で衝撃荷重を吸収させる。
すなわち、バンパ部材が先端がＵ字形に形成されるとともに側面視では前輪と重なる位置で段曲げされ、、前から乗員へ向かう外力を受けさせるために車長方向に延ばされ、バンパ部材のストレート部が、乗車空間の下に配置され、車体フレームは、中央下部にパワーユニットが配置されるとともに、バンパ部材の後端を受ける受け部が形成され、バンパ部材の後端と受け部との間に衝撃荷重を吸収する衝撃吸収部材を介在させることで、例えば、車長の範囲内では車両の前部に衝撃吸収部材の配置が困難である車両においても、衝撃荷重が加わったときに、この衝撃荷重を効率よく吸収させることができる。
乗車空間を維持するためのバンパ部材の全移動量は車体前部から乗車空間前部前部までが好ましい。そこで、衝撃吸収部材の有効潰れ長さを車体前部から乗車空間前部までの長さとすることで、乗車空間を維持するために移動可能な全移動量をバンパ部材に与えるようにする。
【０００７】
請求項２は、ストレート部を、車体フレームの下方に潜り込ませたことを特徴とする。
【０００８】
【発明の実施の形態】
本発明の実施の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図１は本発明に係る衝撃吸収構造を搭載した車両の側面図である。
車両としてのキャビン付き二輪車１０は、車体フレーム１１と、車体フレーム１１の前部に取付けたヘッドパイプ１２と、このヘッドパイプ１２に取付けたフロントフォーク１３と、このフロントフォーク１３に取付けた前輪１４と、フロントフォーク１３に連結したハンドル１５と、車体フレーム１１の中央下部に配置したパワーユニット（不図示）と、車体フレーム１１の後部に取付けたスイングユニット１７と、スイングユニット１７の後部に取付けた後輪１８と、車体フレーム１１の後部からスイングユニット１７に掛け渡したサスペンション１９と、車体フレーム１１のほぼ中央に配置した乗員用シート２１と、車体フレーム１１を覆うボディカバー２２と、ヘッドパイプ１２の左右から延ばしたフロントメンバ２４，２４（奥側の２４は不図示）と、車体フレーム１１の後部左右から延ばした支持部材２５，２５（奥側の２５は不図示）と、これらのフロントメンバ２４，２４及び支持部材２５，２５で支持する屋根２６と、車体フレーム１１の中央下部に形成する床２７と、これらの床２７、屋根２６、支持部材２５，２５、フロントメンバ２４，２４を主要構成として形成した乗員の乗車空間としてのキャビン２９とを、主要構成とした二輪車である。
図中、３１はヘッドライト、３２はテールランプ、３３はウインドスクリーンを示す。
【０００９】
また、キャビン付き二輪車１０は、車体フレーム１１にスライド可能に取付ける先端４１ａをＵ字形に形成したバンパ部材４１と、バンパ部材４１の端部４１ｂ，４１ｂ（奥側の４１ｂは不図示）から車体フレーム１１の受け部１１ａ，１１ａ（奥側の１１ａは不図示）にそれぞれ介在させることで衝撃荷重を吸収する衝撃吸収部材４２，４２（奥側の４２は不図示）とからなる車両の衝撃吸収構造４０（以下、「衝撃吸収構造４０」と略記する）を搭載した車両である。
【００１０】
バンパ部材４１は、前記のように平面視でＵ字形に形成した部材であって、側面視では段曲げすることで、後端４１ｂ，４１ｂに衝撃吸収部材４２，４２を配置するとともに、バンパ部材４１のストレート部４３，４３を車体フレーム１１の下方に位置させたものであるようにしたものである。
【００１１】
衝撃吸収部材４２は、衝撃荷重を吸収するための部材であって、衝撃吸収部材の長さＬ１とするときに、この長さＬ１をキャビン付き二輪車１０（車体）の前部からキャビン２９（乗車空間）の前部までの長さに設定したものである。
キャビン２９（乗車空間）を維持するためのバンパ部材４１の全移動量はキャビン付き二輪車１０（車体）の前部からキャビン２９の前部までが好ましい。そこで、衝撃吸収部材４２の長さをキャビン付き二輪車１０の前部からキャビン２９の前部までの長さとすることで、キャビン２９を維持するために移動可能な全移動量をバンパ部材４１に与えるようにした。
この結果、キャビン付き二輪車１０に衝撃荷重が加わったときに、この衝撃荷重を効率よく吸収させることができる。
【００１２】
すなわち、衝撃吸収構造４０は、乗員の乗車空間を有する車両において、前から乗員へ向かう外力を受けさせるためにほぼ車長方向に延ばしたバンパ部材４１を、キャビン２９（乗車空間）の下又は横に備え、且つバンパ部材４１の後部に衝撃吸収部材４２，４２を介在させたものであると言える。
【００１３】
車長方向に延ばしたバンパ部材４１で乗員へ向かう外力を受け、バンパ部材４１の後部に介在させた衝撃吸収部材４２，４２で衝撃荷重を吸収させる。
すなわち、キャビン付き二輪車１０は、車長方向に延ばしたバンパ部材４１をキャビン２９の下又は横に備え、且つバンパ部材４１の後部に衝撃吸収部材４２，４２を介在させたので、例えば、車長の範囲内では車両の前部に衝撃吸収部材の配置が困難である車両においても、衝撃荷重が加わったときに、この衝撃荷重を効率よく吸収させることができる。この結果、衝撃荷重を吸収させてキャビン２９（乗車空間）の変形を最小限にとどめることができる。
【００１４】
以上に述べた衝撃吸収構造４０の作用を説明する。
図２（ａ），（ｂ）は本発明に係る衝撃吸収構造を搭載した車両の作用説明図である。
（ａ）において、例えば、キャビン付き二輪車１０を矢印▲１▼の如く前進させる。
（ｂ）において、キャビン付き二輪車１０が壁などの障害物Ｓに達すると、フロントフォーク１３及び前輪１４が変形を受けるとともに、バンパ部材４１が矢印▲２▼の如く移動することで衝撃吸収部材４２を潰す。衝撃吸収部材４２を潰すことで、キャビン付き二輪車１０に加わる衝撃荷重を吸収させる。
この結果、床２７、屋根２６、支持部材２５，２５、フロントメンバ２４，２４を主要構成として形成したキャビン２９の変形を防止し、乗員Ｍの乗車空間のを維持することができる。
【００１５】
衝撃吸収構造４０は、衝撃吸収部材４２の潰し量を衝撃吸収部材の有効潰れ長さＬ１と呼ぶときに、有効潰れ長さＬ１をキャビン付き二輪車１０（車体）前部からキャビン２９（乗車空間）前部までの長さとしたものであると言える。
乗車空間を維持するためのバンパ部材の全移動量は車体前部から乗車空間前部前部までが好ましい。そこで、衝撃吸収部材４２の有効潰れ長さＬ１をキャビン付き二輪車１０（車体）からキャビン２９（乗車空間）前部までの長さとすることで、キャビン２９を維持するために移動可能な全移動量をバンパ部材４１に与えるようにする。この結果、キャビン付き二輪車１０に衝撃荷重が加わったときに、この衝撃荷重を効率よく吸収させることができる。
【００１６】
図３は本発明に係る第２実施の形態の衝撃吸収構造を搭載した車両の側面図である。図１に示すキャビン付き二輪車１０と同一部品は同一符号を用い詳細な説明を省略する。
すなわち、１２はヘッドパイプ、１３はフロントフォーク、１４は前輪、１５はハンドル、１７はスイングユニット、１８は後輪、１９はサスペンション、２１は乗員用シート、２２はボディカバー、２４，２４（奥側の２４は不図示）はフロントメンバ、２５，２５（奥側の２５は不図示）は延ばした支持部材、２６は屋根、２７は床、２９はキャビン（乗車空間）、３１はヘッドライト、３２はテールランプ、３３はウインドスクリーン、５１は車体フレームであり、車両としてのキャビン付き二輪車５０は、車体フレーム５１にスライド可能に取付ける先端６１ａをＵ字形に形成したバンパ部材６１と、バンパ部材６１の端部６１ｂ，６１ｂ（奥側の６１ｂは不図示）から車体フレーム６１の受け部５１ａ，５１ａ（奥側の５１ａは不図示）にそれぞれ介在させることで衝撃荷重を吸収する衝撃吸収部材６２，６２とからなる車両の衝撃吸収構造６０（以下、「衝撃吸収構造６０」と略記する）を搭載した車両である。
【００１７】
バンパ部材６１は、平面視でＵ字形に形成し、且つ側面視では直線の部材であって、後端６１ｂ，６１ｂに衝撃吸収部材６２，６２を配置するとともに、バンパ部材６１のストレート部６３，６３を車体フレーム１１の両サイドに位置させたものである。
【００１８】
衝撃吸収部材６２は、衝撃荷重を吸収するための部材であって、衝撃吸収部材の有効潰れ長さＬ２とするときに、この有効潰れ長さＬ２をキャビン付き二輪車５０（車体）の前部からキャビン２９（乗車空間）の前部までの長さに設定した衝撃吸収部材４２（図１参照）と同一の部材である。
【００１９】
以上に述べた衝撃吸収構造６０の作用を説明する。
図４（ａ），（ｂ）は本発明に係る第２実施の形態の衝撃吸収構造を搭載した車両の作用説明図である。
（ａ）において、例えば、キャビン付き二輪車５０を矢印▲３▼の如く前進させる。
（ｂ）において、キャビン付き二輪車５０が壁などの障害物Ｓに達すると、フロントフォーク１３及び前輪１４が変形を受けるとともに、バンパ部材６１が矢印▲４▼の如く移動することで衝撃吸収部材６２を潰す。衝撃吸収部材６２を潰すことで、キャビン付き二輪車６０に加わる衝撃荷重を吸収させる。
この結果、床２７、屋根２６、支持部材２５，２５、フロントメンバ２４，２４を主要構成として形成したキャビン２９の変形を防止し、乗員Ｍの乗車空間としてのキャビン２９の損傷を最小限にとどめる。
【００２０】
また、キャビン付き二輪車５０は、Ｕ字形のバンパ部材６１のストレート部６３，６３（一方の６３は不図示）を車体フレーム５１の両サイドに配置したので、側方からの衝撃に対してキャビン２９を保護するサイドメンバとしての作用もなす。この結果、衝撃吸収構造６０は、側方からの衝撃に対してキャビン２９を維持できる構造であると言える。
【００２１】
尚、実施形態では図１に示すように、キャビン付き二輪車１０にバンパ部材４１及び衝撃吸収部材４２を用いた衝撃吸収構造４０を示したが、車両はキャビン付き二輪車に限るものではなく、二輪車、三輪車又は四輪車であってもよい。すなわち、バギー車等のオフロード車や農業車両なども含む。
また、実施形態では図１に示すように、ヘッドパイプ１２から屋根を支持するフロントメンバ２４を延ばしたが、これに限るものではなく、フロントメンバは車体フレーム側から延ばしたものであってもよい。
【００２２】
実施形態では図１に示すように、バンパ部材４１の先端４１ａをＵ字状に形成したが、これに限るものではなく、先端形状はＬ字状又はＴ字状として後端を一つの衝撃吸収部材で衝撃吸収をするものであってもよい。
第２の実施形態では図３に示すように、バンパ部材６１の先端６１ａをＵ字状に形成したが、これに限るものではなく、先端形状はＬ字状又はＴ字状とした別体のバンパ部材を配置して、それぞれの後端を衝撃吸収部材配置するものであってもよい。
【００２３】
【発明の効果】
本発明は上記構成により次の効果を発揮する。
請求項１では、車体フレームと、この車体フレームの上方に形成された乗員の乗車空間と、車体フレームにスライド可能に取付けられ、車両空間を保護するバンパ部材とを有するキャビン付き二輪車の衝撃吸収構造であって、バンパ部材が、先端がＵ字形に形成されるとともに側面視では前輪と重なる位置で段曲げされ、前から乗員へ向かう外力を受けさせるために車長方向に延ばされ、バンパ部材のストレート部が、乗車空間の下又は横に配置され、車体フレームは、中央下部にパワーユニットが配置されるとともに、バンパ部材の後端を受ける受け部が形成され、バンパ部材の後端と受け部との間に衝撃荷重を吸収する衝撃吸収部材を介在させたので、例えば、車長の範囲内では車両の前部に衝撃吸収部材の配置が困難である車両においても、衝撃荷重が加わったときに、この衝撃荷重を効率よく吸収させることができる。この結果、乗員の乗車空間を維持することができる。
衝撃吸収部材の有効潰し長さを車体前部から乗車空間前部までの長さとしたので、乗車空間を維持するために移動可能な全移動量をバンパ部材に与えることができる。この結果、車両に衝撃荷重が加わったときに、この衝撃荷重を効率よく吸収させることができる。
【００２４】
請求項２は、ストレート部を、車体フレームの下方に潜り込ませた。
【図面の簡単な説明】
【図１】本発明に係る衝撃吸収構造を搭載した車両の側面図
【図２】本発明に係る衝撃吸収構造を搭載した車両の作用説明図
【図３】本発明に係る第２実施の形態の衝撃吸収構造を搭載した車両の側面図
【図４】本発明に係る第２実施の形態の衝撃吸収構造を搭載した車両の作用説明図
【符号の説明】
１０，５０…車両（キャビン付き二輪車）、２９…乗車空間（キャビン）４０，６０…車両の衝撃吸収構造、４１，６１…バンパ部材、４２，６２…衝撃吸収部材、Ｌ１，Ｌ２…衝撃吸収部材の有効潰れ長さ。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shock absorbing structure for a two-wheeled vehicle with a cabin having a passenger space.
[0002]
[Prior art]
As a shock absorbing structure for a two-wheeled vehicle with a cabin , Japanese Patent Application Laid-Open No. 10-67374 “Vehicle Frame with a Boarding / Exiting Section” is known.
According to FIG. 3 of the publication, the above technique is such that a deforming element 51 is arranged above the front wheel 2 (the sign is the same as the sign used in the publication) and in front of the main frame pipe 20, When an impact load is applied from the front of the vehicle, the impact load is received by the deformation element 51 to reduce the impact.
[0003]
[Problems to be solved by the invention]
However, in the vehicle frame having the above-described getting-on / off part, the deformation element 51 (hereinafter referred to as “impact absorbing member”) is disposed above the front wheel 2 and in front of the main frame pipe 20, and therefore absorbs an impact load. For this reason, it may be difficult to provide a sufficiently large impact absorbing member. In particular, motorcycles and cab-over type trucks in which all or most of the prime mover is located below the cab have a structure with no front nose. Is difficult.
Even in a vehicle in which it is difficult to dispose the impact absorbing member at the front of the vehicle within the range of the vehicle length, for example, when an impact load is applied, it is desired to efficiently absorb the impact load.
[0004]
Accordingly, an object of the present invention is to provide a technique for efficiently absorbing the impact load when the impact load is applied to the two-wheeled vehicle with the cabin and minimizing damage to the passenger's riding space.
[0005]
[Means for Solving the Problems]
To achieve the above object, a shock absorbing structure for a two-wheeled vehicle with a cabin according to claim 1 is provided with a vehicle body frame, a passenger space formed above the vehicle body frame, a slidably attached to the vehicle body frame, A shock absorbing structure for a two-wheeled vehicle with a cabin having a bumper member for protecting the vehicle, wherein the bumper member is formed in a U shape at the tip and is bent stepwise at a position overlapping the front wheel in a side view, and is applied to the occupant from the front. extended in the longitudinal direction of the vehicle in order to undergo, straight portion of the bumper member is disposed under or beside the riding space, the body frame together with the power unit is placed in the bottom center, the rear end of the bumper member receiving portion is formed to receive the shock absorbing member that absorbs the impact load is interposed between the rear end and the receiving portion of the bumper member, an impact crush amount of the shock absorbing member When called the effective crushing length of the yield member, the effective crushing length, characterized in that the length from the front vehicle body to ride space front.
[0006]
A bumper member extending in the vehicle length direction receives an external force toward the occupant, and an impact load is absorbed by an impact absorbing member interposed at the rear of the bumper member.
That is, the bumper member is the tip is bent stage at a position overlapping with the front wheel in a side view is formed in a U-shape, extended in the longitudinal direction of the vehicle in order to undergo an external force directed from the front to the passenger, straight bumper member section is disposed below the riding space, body frame, the bottom center with the power unit is disposed, receiving portion for receiving the rear end of the bumper member is formed, between the rear end and the receiving portion of the bumper member By interposing an impact absorbing member that absorbs the impact load, for example, even in a vehicle in which it is difficult to arrange the impact absorbing member at the front of the vehicle within the range of the vehicle length, this impact is applied when the impact load is applied. The load can be absorbed efficiently.
The total amount of movement of the bumper member for maintaining the riding space is preferably from the front of the vehicle body to the front of the riding space. Therefore, by setting the effective crushing length of the shock absorbing member to the length from the front portion of the vehicle body to the front portion of the riding space, a total movement amount that can be moved to maintain the riding space is given to the bumper member.
[0007]
Claim 2 is a straight portion, characterized in that was submerge below the body frame.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view of a vehicle equipped with an impact absorbing structure according to the present invention.
A two-wheeled vehicle 10 with a cabin as a vehicle includes a body frame 11, a head pipe 12 attached to the front portion of the body frame 11, a front fork 13 attached to the head pipe 12, and a front wheel 14 attached to the front fork 13. A handle 15 connected to the front fork 13, a power unit (not shown) disposed at the lower center of the body frame 11, a swing unit 17 attached to the rear part of the body frame 11, and a rear wheel attached to the rear part of the swing unit 17. 18, a suspension 19 spanned from the rear part of the body frame 11 to the swing unit 17, an occupant seat 21 disposed almost at the center of the body frame 11, a body cover 22 covering the body frame 11, and the left and right sides of the head pipe 12. Extended front members 24, 24 (back side 24 is not shown), support members 25 and 25 (the back side 25 is not shown) extending from the left and right of the rear portion of the vehicle body frame 11, and a roof 26 supported by the front members 24 and 24 and the support members 25 and 25. And a floor 27 formed at the center lower part of the body frame 11, and a cabin 29 as a passenger's boarding space formed mainly by these floor 27, roof 26, support members 25 and 25, and front members 24 and 24. The motorcycle is the main component.
In the figure, 31 is a headlight, 32 is a tail lamp, and 33 is a wind screen.
[0009]
Further, the two-wheeled vehicle 10 with a cabin has a bumper member 41 having a U-shaped tip 41a that is slidably attached to the vehicle body frame 11, and end portions 41b and 41b of the bumper member 41 (41b on the back side is not shown). The shock absorbing structure for a vehicle is composed of shock absorbing members 42 and 42 (the back side 42 is not shown) that absorbs the impact load by being interposed in the 11 receiving portions 11a and 11a (the back side 11a is not shown). 40 (hereinafter abbreviated as “shock absorbing structure 40”).
[0010]
The bumper member 41 is a member formed in a U shape in a plan view as described above, and the shock absorbing members 42 and 42 are disposed at the rear ends 41b and 41b by bending the bumper member 41 in a side view, and the bumper member 41, straight portions 43, 43 are positioned below the body frame 11.
[0011]
The shock absorbing member 42 is a member for absorbing a shock load, and when the length L1 of the shock absorbing member is set, the length L1 is set from the front portion of the cabin-equipped motorcycle 10 (vehicle body) to the cabin 29 (ride). It is set to the length up to the front of (space).
The total amount of movement of the bumper member 41 for maintaining the cabin 29 (boarding space) is preferably from the front part of the cabin-equipped two-wheeled vehicle 10 (vehicle body) to the front part of the cabin 29. Therefore, by setting the length of the shock absorbing member 42 to the length from the front part of the two-wheeled vehicle 10 with the cabin to the front part of the cabin 29, a total movement amount that can be moved to maintain the cabin 29 is given to the bumper member 41. I did it.
As a result, when an impact load is applied to the two-wheeled vehicle 10 with the cabin, the impact load can be efficiently absorbed.
[0012]
That is, in the vehicle having the passenger's boarding space, the shock absorbing structure 40 allows the bumper member 41 extended substantially in the vehicle length direction to receive an external force from the front toward the passenger under or next to the cabin 29 (boarding space). It can be said that the shock absorbing members 42 and 42 are interposed in the rear part of the bumper member 41.
[0013]
A bumper member 41 extending in the vehicle length direction receives an external force toward the occupant, and an impact load is absorbed by impact absorbing members 42 and 42 interposed in the rear part of the bumper member 41.
Chi words, key Yabin with motorcycle 10, the bumper member 41 extending in the vehicle length direction with the bottom or side of the cabin 29, and since the impact absorbing member 42, 42 at the rear of the bumper member 41 is interposed, for example, Even in a vehicle in which it is difficult to dispose the impact absorbing member at the front portion of the vehicle within the range of the vehicle length, the impact load can be efficiently absorbed when an impact load is applied. As a result, the impact load can be absorbed and the deformation of the cabin 29 (ride space) can be minimized.
[0014]
The operation of the shock absorbing structure 40 described above will be described.
2 (a) and 2 (b) are operation explanatory views of a vehicle equipped with the shock absorbing structure according to the present invention.
In (a), for example, the two-wheeled vehicle 10 with the cabin is advanced as indicated by the arrow (1).
In (b), when the cabin-equipped two-wheeled vehicle 10 reaches an obstacle S such as a wall, the front fork 13 and the front wheel 14 are deformed, and the bumper member 41 moves as indicated by the arrow (2), whereby the shock absorbing member 42 is moved. Crush. By crushing the impact absorbing member 42, the impact load applied to the cabin-equipped motorcycle 10 is absorbed.
As a result, it is possible to prevent deformation of the cabin 29 in which the floor 27, the roof 26, the support members 25 and 25, and the front members 24 and 24 are formed as main components, and to maintain the riding space of the passenger M.
[0015]
In the shock absorbing structure 40, when the crushed amount of the shock absorbing member 42 is referred to as an effective crushed length L1 of the shock absorbing member, the effective crushed length L1 is determined from the front of the two-wheeled vehicle 10 (vehicle body) with a cabin to the cabin 29 (ride space). It can be said that the length is up to the front.
The total amount of movement of the bumper member for maintaining the riding space is preferably from the front of the vehicle body to the front of the riding space. Accordingly, the effective collapse length L1 of the shock absorbing member 42 is set to the length from the two-wheeled vehicle 10 (vehicle body) with the cabin to the front portion of the cabin 29 (ride space), so that the total movement amount that can be moved to maintain the cabin 29 is achieved. Is given to the bumper member 41. As a result, when an impact load is applied to the two-wheeled vehicle 10 with the cabin, the impact load can be efficiently absorbed.
[0016]
FIG. 3 is a side view of a vehicle equipped with the shock absorbing structure of the second embodiment according to the present invention. The same parts as those of the two-wheeled vehicle 10 with the cabin shown in FIG.
That is, 12 is a head pipe, 13 is a front fork, 14 is a front wheel, 15 is a handle, 17 is a swing unit, 18 is a rear wheel, 19 is a suspension, 21 is a passenger seat, 22 is a body cover, and 24 and 24 (back side) 24 is not shown) is a front member, 25 and 25 (25 on the back side is not shown) is an extended support member, 26 is a roof, 27 is a floor, 29 is a cabin (ride space), 31 is a headlight, 32 Is a tail lamp, 33 is a wind screen, 51 is a body frame, and a two-wheeled vehicle 50 with a cabin as a vehicle includes a bumper member 61 having a U-shaped tip 61a that is slidably attached to the body frame 51, and an end of the bumper member 61. From the parts 61b and 61b (the rear side 61b is not shown), the receiving parts 51a and 51a of the body frame 61 (the rear side 51a is not shown). Shock absorbing structure of a vehicle 60 including an impact absorbing member 62 Metropolitan to absorb the impact load by causing each interposed shown) (hereinafter, a vehicle equipped with the abbreviated as "shock absorbing structure 60").
[0017]
The bumper member 61 is formed in a U shape in a plan view and is a straight member in a side view. The bumper member 61 has shock absorbing members 62 and 62 disposed at the rear ends 61b and 61b, and a straight portion 63 of the bumper member 61, 63 is located on both sides of the vehicle body frame 11.
[0018]
The impact absorbing member 62 is a member for absorbing an impact load. When the impact absorbing member has an effective collapse length L2, the effective collapse length L2 is determined from the front portion of the cabin-equipped motorcycle 50 (vehicle body). This is the same member as the shock absorbing member 42 (see FIG. 1) set to the length up to the front portion of the cabin 29 (ride space).
[0019]
The operation of the shock absorbing structure 60 described above will be described.
4 (a) and 4 (b) are operation explanatory views of a vehicle equipped with the shock absorbing structure of the second embodiment according to the present invention.
In (a), for example, the two-wheeled vehicle 50 with a cabin is advanced as indicated by an arrow (3).
In (b), when the cabin-equipped two-wheeled vehicle 50 reaches an obstacle S such as a wall, the front fork 13 and the front wheel 14 are deformed, and the bumper member 61 moves as indicated by the arrow (4), whereby the shock absorbing member 62 is moved. Crush. By crushing the impact absorbing member 62, the impact load applied to the cabin-equipped motorcycle 60 is absorbed.
As a result, the deformation of the cabin 29 formed mainly of the floor 27, the roof 26, the support members 25, 25, and the front members 24, 24 is prevented, and damage to the cabin 29 as a passenger space for the passenger M is minimized. .
[0020]
Also, with a cabin motorcycle 50, the straight portions 63, 63 of the bumper member 61 of U-shaped (one 63 is not shown) so positioned serves to both sides of the body frame 51, a cabin with respect to side impact It also acts as a side member that protects 29. As a result, the shock absorbing structure 60 can be said to be a structure that can maintain the cabin 29 against a side impact.
[0021]
In the embodiment, as shown in FIG. 1, the shock absorbing structure 40 using the bumper member 41 and the shock absorbing member 42 is shown in the two-wheeled vehicle 10 with the cabin, but the vehicle is not limited to the two-wheeled vehicle with the cabin. It may be a tricycle or a four-wheel vehicle. That is, it includes off-road vehicles such as buggy vehicles and agricultural vehicles.
In the embodiment, as shown in FIG. 1, the front member 24 that supports the roof is extended from the head pipe 12. However, the present invention is not limited to this, and the front member may be extended from the vehicle body frame side. .
[0022]
In the embodiment, as shown in FIG. 1, the tip 41a of the bumper member 41 is formed in a U-shape. However, the present invention is not limited to this, and the tip shape is L-shaped or T-shaped, and the rear end is a single shock absorber. It may be one that absorbs shock with a member.
In the second embodiment, as shown in FIG. 3, the tip 61a of the bumper member 61 is formed in a U shape. However, the present invention is not limited to this, and the tip shape is a separate L-shape or T-shape. A bumper member may be arranged, and an impact absorbing member may be arranged at each rear end.
[0023]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
In Claim 1, the shock absorption structure of the two-wheeled vehicle with a cabin which has a vehicle body frame, the passenger | crew's boarding space formed above this vehicle body frame, and the bumper member slidably attached to the vehicle body frame and protecting the vehicle space a is, the bumper member, the tip is bent stage at a position overlapping with the front wheel in a side view is formed in a U-shape, extended in the longitudinal direction of the vehicle in order to undergo an external force directed from the front to the passenger, the bumper member The straight portion of the bumper member is disposed below or beside the riding space, and the body frame has a power unit disposed at a lower center portion, and a receiving portion for receiving the rear end of the bumper member is formed. For example, in a vehicle where it is difficult to place the shock absorbing member at the front of the vehicle within the range of the vehicle length. Also, when an impact load is applied, it is possible to absorb this impact load efficiently. As a result, the passenger's boarding space can be maintained.
Since the effective crushing length of the shock absorbing member is the length from the front part of the vehicle body to the front part of the boarding space, the total amount of movement that can be moved to maintain the boarding space can be given to the bumper member. As a result, when an impact load is applied to the vehicle, the impact load can be absorbed efficiently.
[0024]
According to the second aspect of the present invention, the straight portion is embedded under the vehicle body frame .
[Brief description of the drawings]
FIG. 1 is a side view of a vehicle equipped with a shock absorbing structure according to the present invention. FIG. 2 is an explanatory view of the operation of a vehicle equipped with a shock absorbing structure according to the present invention. FIG. 4 is a side view of a vehicle equipped with the shock absorbing structure of FIG. 4. FIG. 4 is an operation explanatory diagram of the vehicle equipped with the shock absorbing structure of the second embodiment according to the present invention.
DESCRIPTION OF SYMBOLS 10,50 ... Vehicle (two-wheeled vehicle with a cabin), 29 ... Riding space (cabin) 40, 60 ... Shock absorption structure of a vehicle, 41, 61 ... Bumper member, 42, 62 ... Shock absorption member, L1, L2 ... Shock absorption member Effective crush length of.

Claims (2)

車体フレームと、この車体フレームの上方に形成された乗員の乗車空間と、車体フレームにスライド可能に取付けられ、車両空間を保護するバンパ部材とを有するキャビン付き二輪車の衝撃吸収構造であって、
前記バンパ部材は、先端がＵ字形に形成されるとともに側面視では前輪と重なる位置で段曲げされ、前から乗員へ向かう外力を受けさせるために車長方向に延ばされ、前記バンパ部材のストレート部は、前記乗車空間の下に配置され、
車体フレームは、中央下部にパワーユニットが配置されるとともに、前記バンパ部材の後端を受ける受け部が形成され、
前記バンパ部材の後端と前記受け部との間に衝撃荷重を吸収する衝撃吸収部材を介在させ、
前記衝撃吸収部材の潰し量を衝撃吸収部材の有効潰れ長さと呼ぶときに、この有効潰れ長さを、車体前部から前記乗車空間前部までの長さとしたことを特徴とするキャビン付き二輪車の衝撃吸収構造。A shock-absorbing structure for a two-wheeled vehicle with a cabin having a body frame, a passenger's boarding space formed above the body frame, and a bumper member that is slidably attached to the body frame and protects the vehicle space,
The bumper member has a tip is bent stage at a position overlapping with the front wheel in a side view is formed in a U-shape, extended in the longitudinal direction of the vehicle in order to undergo an external force directed from the front to the passenger, the straight of the bumper member The portion is disposed under the riding space,
The vehicle body frame has a power unit disposed at the center lower portion and a receiving portion for receiving a rear end of the bumper member.
An impact absorbing member that absorbs an impact load is interposed between a rear end of the bumper member and the receiving portion ,
Wherein the crushing amount of the shock absorbing member when called the effective crushing length of the shock absorbing member, the effective crushing length, from the vehicle body front portion of the cabin with motorcycles, characterized in that the length to the riding space front Shock absorbing structure. 前記ストレート部は、前記車体フレームの下方に潜り込ませたことを特徴とする請求項１記載のキャビン付き二輪車の衝撃吸収構造。The shock absorbing structure for a two-wheeled vehicle with a cabin according to claim 1, wherein the straight portion is embedded under the vehicle body frame.
JP2001063222A 2001-03-07 2001-03-07 Shock absorption structure of a motorcycle with a cabin Expired - Fee Related JP4745516B2 (en)

Priority Applications (3)

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JP2001063222A JP4745516B2 (en) 2001-03-07 2001-03-07 Shock absorption structure of a motorcycle with a cabin
DE10209969A DE10209969B4 (en) 2001-03-07 2002-03-07 Shock absorber structure for vehicles
US10/091,560 US6764099B2 (en) 2001-03-07 2002-03-07 Shock absorbing structure for vehicles

Applications Claiming Priority (1)

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JP2001063222A JP4745516B2 (en) 2001-03-07 2001-03-07 Shock absorption structure of a motorcycle with a cabin

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CN107416086A (en) * 2017-08-30 2017-12-01 浙江杭派电动车有限公司 A kind of electric truck head of anticollision

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US4311335A (en) * 1980-04-24 1982-01-19 Henry F. Winiecki Crash resistant motorcycle
JPH0438884U (en) * 1990-07-30 1992-04-02
JPH07144587A (en) * 1993-11-24 1995-06-06 Jonan Kaihatsu:Kk Safety device for vehicle
DE19629879A1 (en) * 1996-07-24 1998-01-29 Bayerische Motoren Werke Ag Vehicle frame with access, especially for a two-wheeler
JP3370295B2 (en) * 1998-08-17 2003-01-27 本田技研工業株式会社 Car body structure

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