JP2001301647A - Chassis frame structure for cab-over type truck - Google Patents
Chassis frame structure for cab-over type truckInfo
- Publication number
- JP2001301647A JP2001301647A JP2000123589A JP2000123589A JP2001301647A JP 2001301647 A JP2001301647 A JP 2001301647A JP 2000123589 A JP2000123589 A JP 2000123589A JP 2000123589 A JP2000123589 A JP 2000123589A JP 2001301647 A JP2001301647 A JP 2001301647A
- Authority
- JP
- Japan
- Prior art keywords
- cab
- side frame
- vehicle
- frame
- collision
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は車両の前面衝突と追
突に対し、キヤブの変形を抑えて乗員の生存空間を確保
する、キヤブオーバ型貨物車両のシヤシフレーム構造に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelter frame structure for a cargo-over type freight vehicle that suppresses deformation of the cap and secures a living space for occupants in frontal collision and rear-end collision of the vehicle.
【０００２】[0002]
【従来の技術】キヤブ（運転台）がシヤシフレームの前
部に搭載され、運転者の座席が内燃機関よりも前方に位
置するキヤブオーバ型貨物車両では、障壁（バリア）へ
の前面衝突時、シヤシフレームの前端が障壁に突き当つ
て有効に変形することにより衝突エネルギを吸収し、キ
ヤブの生存空間を確保し、乗員の安全性を保つようにな
つている。2. Description of the Related Art In a cap-over type freight vehicle in which a cabin (cab) is mounted on a front portion of a shiyasu frame and a driver's seat is located ahead of an internal combustion engine, when a frontal collision with a barrier occurs, By effectively deforming the front end of the palm frame against the barrier, it absorbs collision energy, secures a living space for the cab, and maintains occupant safety.
【０００３】小型のキヤブオーバ型貨物車両では、シヤ
シフレームの狭い空間に種々の補機類が搭載されるの
で、シヤシフレームの幅が前方から後方へ広がるように
湾曲され、シヤシフレームの幅の広い部分に内燃機関が
支持される。上述のような小型のキヤブオーバ型貨物車
両では、障壁に対する正面衝突時、キヤブの生存空間を
確保するには、シヤシフレームの側枠の前半部を閉断面
構造とすることにより、シヤシフレームの変形を抑え安
全性を確保している。しかし、キヤブオーバ型貨物車両
が前方の貨物車両に追突する時は、追突車両の運転者が
傷害を負う危険性が高い。[0003] In a small cabin-over type freight vehicle, various accessories are mounted in a narrow space of the shiyashi frame, so that the width of the shiyashi frame is curved so as to expand from the front to the rear, and the width of the shiyashi frame is increased. The internal combustion engine is supported on a wide portion of the internal combustion engine. In the case of the above-mentioned small cap-over type freight vehicle, in the event of a head-on collision with a barrier, in order to secure a living space for the cap, the front half of the side frame of the shiyasu frame has a closed cross-sectional structure. Deformation is suppressed to ensure safety. However, when a cap-over type freight vehicle collides with a preceding freight vehicle, there is a high risk that the driver of the rear-end vehicle will be injured.
【０００４】図６〜８に示すように、キヤブオーバ型貨
物車両は左右１対の側枠７に複数の横部材を結合してシ
ヤシフレーム２０が構成され、左右１対の側枠７の前端
から少し後方部分に内燃機関１０が支持され、内燃機関
１０の上側に運転者の着座位置がくるように、キヤブ３
１の前後左右の４隅が側枠７の上に支持される。前輪２
６はキヤブ３１の前後方向ほぼ中心に位置するようにシ
ヤシフレーム２０に支持される。[0006] As shown in FIGS. 6 to 8, in a cap-over type freight vehicle, a plurality of lateral members are connected to a pair of left and right side frames 7 to form a shiyashi frame 20. The internal combustion engine 10 is supported at a position slightly rearward from the vehicle, and the cabin 3 is positioned so that the driver's seating position is located above the internal combustion engine 10.
The four front, rear, left and right corners are supported on the side frame 7. Front wheel 2
6 is supported by the palm frame 20 so as to be located substantially at the center of the cabinet 31 in the front-rear direction.
【０００５】図８に示すように、従来のシヤシフレーム
２０は断面コ字形をなす側枠７の前端に、閉断面をなす
補強部材２９が結合され、左右１対の補強部材２９の間
に第１の横部材が結合される。側枠７の前端部から上方
へ延びる支板２１のキヤブマウント２２に、キヤブ３１
の前端床部がチルト軸により傾動可能に支持される。[0005] As shown in FIG. 8, in the conventional shiiyashi frame 20, a reinforcing member 29 having a closed cross section is connected to a front end of a side frame 7 having a U-shaped cross section. The first cross member is joined. A cap 31 is mounted on a cap mount 22 of a support plate 21 extending upward from the front end of the side frame 7.
Is tiltably supported by a tilt shaft.
【０００６】車両が図６に示すような平坦な障壁３０に
前面衝突する時、前バンパが障壁３０に突き当たり、衝
突エネルギは左右１対の側枠７により支持され、キヤブ
３１の変形は最小限に抑えられるが、図７に示すよう
に、車両が前方車両に追突する時は、前方車両のシヤシ
フレーム２０と追突車両のシヤシフレーム２０とに高低
差があると、キヤブ３１が前方車両の荷台３２に直接衝
突して大幅に潰れ、運転者の生命に危険をもたらす恐れ
がある。すなわち、図９に示すように、追突車両にかか
る荷重はキヤブ３１とキヤブ３１の前端を支持するキヤ
ブマウント２２とに作用し、キヤブマウント２２が側枠
７の前端から分離して後方へ移動し、キヤブ３１の前壁
を大幅に後退させる。When the vehicle collides with the flat barrier 30 as shown in FIG. 6, the front bumper collides with the barrier 30, the collision energy is supported by the pair of left and right side frames 7, and the deformation of the cap 31 is minimized. As shown in FIG. 7, when the vehicle collides with the preceding vehicle, if there is a height difference between the front frame of the front vehicle and the rear frame of the rear vehicle, the cap 31 is moved by the front vehicle. Directly colliding with the cargo bed 32 of the vehicle, and may be greatly crushed, which may cause a danger to the driver's life. That is, as shown in FIG. 9, the load applied to the rear-end collision vehicle acts on the cab 31 and the cab mount 22 supporting the front end of the cab 31, and the cab mount 22 separates from the front end of the side frame 7 and moves rearward. Significantly retreat the 31 front wall.
【０００７】したがつて、前面衝突のみを考慮して側枠
７を閉断面構造として強化すると、追突時のキヤブ３１
と側枠７にキヤブ３１を支持するキヤブマウント２２と
に作用する衝突荷重に対して、側枠７の強度が強すぎ、
側枠７を有効に上下に湾曲させるためには、キヤブマウ
ント２２と側枠７との結合強度をかなり強固なものにし
なければならず、現実の構造として成立させることはか
なり難しい。Accordingly, if the side frame 7 is strengthened to have a closed cross-sectional structure in consideration of only a frontal collision, the cab 31 during a rear-end collision can be improved.
The strength of the side frame 7 is too strong with respect to the collision load acting on the cab mount 22 supporting the cab 31 on the side frame 7,
In order to bend the side frame 7 up and down effectively, the coupling strength between the cap mount 22 and the side frame 7 must be made quite strong, and it is quite difficult to achieve a real structure.
【０００８】側枠７を開断面構造とし、キヤブマウント
２２と側枠７との結合強度を強固にする時は、車両の追
突時、側枠７に上下方向の曲げを発生させることができ
るが、車両の前面衝突時に、シヤシフレーム２０の後方
部分（内燃機関搭載部分）の幅が広くなるように、側枠
７が湾曲していると、湾曲部に左右方向の曲げ変形が発
生し易く、キヤブ３１の生存空間を確保することが難し
くなる。そこで、側枠７の左右方向の湾曲をなくすため
に、前後方向に真直ぐにすることも考えられるが、車両
のレイアウトの自由度が減じられ、小型のキヤブオーバ
型貨物車両の利点が損われる。When the side frame 7 has an open cross-sectional structure and the coupling strength between the cap mount 22 and the side frame 7 is strengthened, the side frame 7 can be bent in the vertical direction at the time of a rear-end collision of the vehicle. When the side frame 7 is curved so that the width of the rear portion (the portion on which the internal combustion engine is mounted) of the palm frame 20 is widened at the time of a frontal collision of the vehicle, the bending portion is likely to bend in the left-right direction, It becomes difficult to secure a living space for the cab 31. Therefore, it is conceivable to straighten the side frame 7 in the front-rear direction in order to eliminate the left-right bending of the side frame 7. However, the degree of freedom of the layout of the vehicle is reduced, and the advantage of the small-sized, carryover-type freight vehicle is impaired.
【０００９】特開平 8-1881745号に開示されるキヤブオ
ーバ型貨物車両のシヤシフレーム構造では、左右１対の
側枠に、閉断面をなしかつ両側壁に前後方向の間隔を存
して複数の孔、リード、切欠などを設けた衝撃吸収部材
を支持し、該衝撃吸収部材の前端に前バンパを支持し、
車両の前面衝突時前バンパから受ける衝撃を、衝撃吸収
部材の孔、リード、切欠などからの圧壊により吸収し、
シヤシフレームとキヤブの変形を抑え、乗員の生存空間
を確保するものでる。しかし、上述のキヤブオーバ型貨
物車両のシヤシフレーム構造ではシヤシフレームとは別
に衝撃吸収部材を設けるという点でコストの増加を来
し、また特に小型のキヤブオーバ型貨物車両では前輪懸
架機構との関係で衝撃吸収部材の配置空間を確保するこ
とが難しい。[0009] In the shiyashi frame structure of a cap-over type freight vehicle disclosed in Japanese Patent Application Laid-Open No. H8-1881745, a plurality of left and right side frames have a closed section and a plurality of side walls with a space in the front-rear direction. Supporting a shock absorbing member provided with holes, leads, notches, etc., supporting a front bumper at the front end of the shock absorbing member,
The impact received from the front bumper at the time of frontal collision of the vehicle is absorbed by crushing from holes, leads, notches, etc. of the shock absorbing member,
It restrains the deformation of the shiyashi frame and the cab, and secures a living space for the occupants. However, the above-described cab-type freight vehicle has a cost increase in that a shock absorbing member is provided separately from the plywood frame, and particularly in a small-size cap-over type freight vehicle, the relationship with the front wheel suspension mechanism is increased. Therefore, it is difficult to secure a space for disposing the shock absorbing member.
【００１０】[0010]
【発明が解決しようとする課題】本発明の課題は上述の
問題に鑑み、車両の前面衝突と追突のいずれの場合に
も、シヤシフレームの前端またはキヤブ前面への入力を
シヤシフレームへ有効に伝え、シヤシフレームの変形に
より衝突エネルギを吸収し、キヤブの生存空間を確保す
るようにした、キヤブオーバ型貨物車両のシヤシフレー
ム構造を提供することにある。SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to effectively apply an input to the front end of the shiyasu frame or the front of the cab to the shiyashi frame in both a frontal collision and a rear-end collision of the vehicle. SUMMARY OF THE INVENTION It is an object of the present invention to provide a shiyashi frame structure for a cabin overcargo vehicle in which collision energy is absorbed by deformation of a shiyasu frame to secure a living space for the cab.
【００１１】[0011]
【課題を解決するための手段】上記課題を解決するため
に、本発明の構成は断面コ字形をなす左右１対の側枠の
前端床部に第１の横部材を結合し、第１の横部材の上面
に配設したキヤブマウントにキヤブの前端床部を軸支持
し、各側枠の上下縁部に側枠を閉断面とする閉鎖板を結
合し、左右１対の側枠の間に支持した内燃機関よりも前
方部分に第２の横部材を結合し、前記閉鎖板の第１，第
２の横部材の間の部分に開口を設けたことを特徴とす
る。In order to solve the above-mentioned problems, the present invention is characterized in that a first horizontal member is connected to a front end floor portion of a pair of left and right side frames having a U-shaped cross section, The front end floor of the cab is supported by the cab mount arranged on the upper surface of the horizontal member, and the upper and lower edges of each side frame are combined with a closing plate having a closed cross section of the side frame. A second horizontal member is connected to a portion forward of the supported internal combustion engine, and an opening is provided in a portion between the first and second horizontal members of the closing plate.
【００１２】[0012]
【発明の実施の形態】本発明は車両の追突事故時、側枠
に対するキヤブの前端床部の支持部よりも弱い部分を側
枠の前端付近に設けることにより、側枠がキヤブと一体
的に変形し、キヤブの変形と後退量を抑え、生存空間を
確保する。このため、シヤシフレームを構成する左右１
対の断面コ字形をなす側枠の上下縁部に、側枠を閉断面
構造にする閉鎖板を結合し、閉鎖板の前端付近に開口を
設け、車両の前面衝突時、左右の側枠が開口部分で屈曲
して衝突エネルギを吸収するようにする。内燃機関は左
右１対の側枠の前端から少し後方へ離れた部分に支持
し、左右１対の側枠の内燃機関よりも前方部分の間隔を
狭くし、この部分に前輪懸架機構を配設する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a side frame integrally with a cap by providing a portion near the front end of the side frame that is weaker than a support portion of a front end floor portion of the cab with respect to the side frame in a rear-end collision of a vehicle. Deforms, restrains the deformation and retreat of the cab, and secures a living space. Therefore, the left and right 1
At the upper and lower edges of the pair of side frames having a U-shaped cross section, a closing plate that makes the side frame a closed cross section structure is connected, and an opening is provided near the front end of the closing plate, so that at the time of a frontal collision of the vehicle, the left and right side frames are It bends at the opening to absorb the collision energy. The internal combustion engine is supported at a portion slightly rearward from the front end of the pair of left and right side frames, the distance between the front portions of the pair of left and right side frames is narrower than that of the internal combustion engine, and a front wheel suspension mechanism is disposed at this portion. I do.
【００１３】つまり、左右１対の側枠の内燃機関のラジ
エータよりも前方部分に第２の横部材を配設し、側枠の
前端の第１の横部材と第２の横部材との間の部分に、側
枠を閉断面構造とする閉鎖板を結合し、閉鎖板に開口を
設ける。キヤブは前端床部を、側枠の前端すなわち第１
の横部材との結合部の上面に配設したキヤブマウントに
チルト軸により支持し、またキヤブの後端床部は左右の
側枠に掛け渡した逆Ｕ字形の櫓の上に、前後左右にずれ
ないように係止する。したがつて、車両の前面衝突時ま
たは前方車両に追突時、側枠の開口部分から側枠が上下
方向へ屈曲して衝突エネルギを吸収する。この時、キヤ
ブの前壁面も変形して後退するが、キヤブの前端床部を
支持するキヤブマウントよりも側枠の開口部分の強度が
弱くなつているので、キヤブだけが大きく変形して後退
することはなく、キヤブの生存空間が確保される。In other words, a second horizontal member is disposed at a portion of the pair of left and right side frames in front of the radiator of the internal combustion engine, and between a first horizontal member and a second horizontal member at the front end of the side frame. Is connected to a closing plate having a side frame with a closed cross-sectional structure, and an opening is provided in the closing plate. The cab rests on the front end floor at the front end of the side frame,
It is supported by a tilt shaft on the mount mounted on the upper surface of the joint with the horizontal member, and the rear end floor of the cap is shifted back and forth and left and right on an inverted U-shaped turret crossed over the left and right side frames Lock so that there is no. Therefore, at the time of a frontal collision of a vehicle or a collision with a vehicle ahead, the side frame is bent up and down from the opening of the side frame to absorb the collision energy. At this time, the front wall of the cab also deforms and retreats, but since the strength of the opening of the side frame is weaker than that of the cab mount that supports the front end floor of the cab, only the cab deforms greatly and retreats No, the living space of the cab is secured.
【００１４】[0014]
【実施例】図１は本発明に係るキヤブオーバ型貨物車両
のシヤシフレームの前半部を示す平面図である。シヤシ
フレーム２０は断面コ字形をなす左右１対の側枠７を複
数の横部材により連結して構成される。図示の実施例で
は、側枠７の前端に第１の横部材２が強固に結合され
る。横部材２から所定の間隔だけ後方へ離れた部分に第
２の横部材５が結合され、横部材５の両端部付近に前輪
２６（図４）を懸架する板ばね２５の前端が、ばね支持
部材４により側枠７に支持され、板ばねの後端はばね支
持部材８により側枠７に支持される。左右１対の側枠７
の間隔は横部材５よりも後方で広げられ、側枠７の広く
なつた部分にラジエータ６が支持部材６ａにより、内燃
機関１０がエンジンマウント９によりそれぞれ支持され
る。内燃機関１０の後部にはクラツチ１２と変速機１３
が一体に結合され、変速機１３の出力軸の回転は公知の
推進軸を経て、後輪２７（図７を参照）の終減速機へ伝
えられる。FIG. 1 is a plan view showing the first half of a shiyashi frame of a carryover type freight vehicle according to the present invention. The palm frame 20 is configured by connecting a pair of left and right side frames 7 having a U-shaped cross section with a plurality of lateral members. In the embodiment shown, the first transverse member 2 is firmly connected to the front end of the side frame 7. A second horizontal member 5 is coupled to a portion separated rearward by a predetermined distance from the horizontal member 2, and a front end of a leaf spring 25 for suspending a front wheel 26 (FIG. 4) near both ends of the horizontal member 5 is supported by a spring. The rear end of the leaf spring is supported by the side frame 7 by the spring support member 8. Left and right pair of side frames 7
Are extended behind the horizontal member 5, and the radiator 6 is supported by the support member 6 a and the internal combustion engine 10 is supported by the engine mount 9 at the widened portion of the side frame 7. A clutch 12 and a transmission 13 are provided at the rear of the internal combustion engine 10.
The rotation of the output shaft of the transmission 13 is transmitted to the final reduction gear of the rear wheel 27 (see FIG. 7) via a known propulsion shaft.
【００１５】図２に示すように、本発明によれば側枠７
の内燃機関１０を支持するエンジンエンジンマウント９
よりも前方側部分に、側枠７の上下縁部７ａに閉鎖板１
７を結合して側枠７が閉断面構造とされる。各側枠７の
前端には断面方形の補強部材２９が結合され、該補強部
材２９の間に横部材２の端部が突き合される。側枠７の
前端部に上方へ突出する支板２１により横方向の軸孔を
有するキヤブマウント２２が支持され、該キヤブマウン
ト２２にキヤブ３１の前端床部がチルト軸により支持さ
れる。キヤブ３１の後端床部は左右の側枠７に掛け渡し
た逆Ｕ字形の櫓の上に、前後左右にずれないように係止
される。前面衝突時、横部材５と横部材２との間で側枠
７が押し潰されるように、閉鎖板１７に開口２３が設け
られる。開口２３の上下方向の寸法は側枠７の上下縁部
７ａの間隔にほぼ等しく、開口２３の前後方向の寸法は
上下方向の寸法よりも長い。開口２３は舵取機構ユニツ
トを取り付けるための作業孔を兼ねる。According to the present invention, as shown in FIG.
Engine mount 9 for supporting internal combustion engine 10
The closing plate 1 is provided on the upper and lower edges 7a of the side frame 7 on the front side portion.
7, the side frame 7 has a closed sectional structure. A reinforcing member 29 having a rectangular cross section is connected to the front end of each side frame 7, and the end of the horizontal member 2 abuts between the reinforcing members 29. At the front end of the side frame 7, a cap mount 22 having a horizontal shaft hole is supported by a support plate 21 protruding upward, and the front end floor portion of the cap 31 is supported by the cap mount 22 by a tilt shaft. The rear end floor portion of the cap 31 is locked on an inverted U-shaped turret extending over the left and right side frames 7 so as not to be shifted from front to back and left and right. An opening 23 is provided in the closing plate 17 so that the side frame 7 is crushed between the horizontal members 5 and 2 at the time of a frontal collision. The vertical dimension of the opening 23 is substantially equal to the distance between the upper and lower edges 7a of the side frame 7, and the longitudinal dimension of the opening 23 is longer than the vertical dimension. The opening 23 also serves as a working hole for mounting the steering mechanism unit.
【００１６】上述のように、側枠７の内燃機関搭載部か
ら前端まで、閉鎖板１７を側枠７の縁部７ａに結合して
閉断面とし、横部材２と横部材５との間の部分の閉鎖板
１７に開口２３を設けたことにより、車両の前面衝突
時、特に車両が前方車両の荷台３２とシヤシフレーム２
０に追突した時、図３，４に示すように、キヤブ３１の
前壁が押し潰されるだけでなく、左右の側枠７が開口２
３の部分で押し潰されて上方または下方へ湾曲し、衝突
荷重を吸収する。衝突荷重がキヤブ３１の前壁だけでな
く側枠７の変形により吸収されるので、キヤブ３１の変
形が抑えられ、生存空間が確保される。As described above, from the internal-combustion engine mounting portion of the side frame 7 to the front end, the closing plate 17 is connected to the edge 7a of the side frame 7 to form a closed cross section. By providing the opening 23 in the closing plate 17 of the part, in the event of a frontal collision of the vehicle, especially when the vehicle
0, not only is the front wall of the cab 31 crushed, but also the left and right side frames 7 are opened as shown in FIGS.
The portion 3 is crushed and curved upward or downward to absorb a collision load. Since the collision load is absorbed not only by the front wall of the cap 31 but also by the deformation of the side frame 7, the deformation of the cap 31 is suppressed, and a living space is secured.
【００１７】車両の追突時、キヤブ３１の前面が変形す
るだけでなく、側枠７の閉鎖板１７の開口２３の部分が
上方または下方への屈曲する。この時、衝突荷重は閉鎖
板１７の開口２３を潰し、その結果、局部的に断面係数
の小さくなつた側枠７に衝突荷重が集中して、閉鎖板１
７の開口２３からシヤシフレーム２０が上下方向に曲げ
られる。図５に示すように、側枠７の閉鎖板１７の開口
２３が圧壊する時の初期抗力は過大なものではなく、減
速度も比較的小さい。閉鎖板１７の開口２３が圧壊する
と閉鎖板１７の開口２３の前後部分が癒着して前後方向
の荷重に対して強固になり、圧壊した開口２３をさらに
密着させながら変形するので、図５に線４２で示すよう
に、線４１で示す従来の車両の場合よりも、適度な抗力
を長い変形ストロークに亘つて持続する。つまり、衝突
エネルギが効率的に吸収され、キヤブ３１の生存空間が
確保される。At the time of a rear-end collision of the vehicle, not only the front surface of the cap 31 is deformed, but also the portion of the opening 23 of the closing plate 17 of the side frame 7 is bent upward or downward. At this time, the collision load crushes the opening 23 of the closing plate 17, and as a result, the collision load concentrates on the side frame 7 having a locally reduced section modulus, and the closing plate 1
The shiyashi frame 20 is bent in the vertical direction from the opening 23. As shown in FIG. 5, the initial drag when the opening 23 of the closing plate 17 of the side frame 7 is crushed is not excessive, and the deceleration is relatively small. When the opening 23 of the closing plate 17 is crushed, the front and rear portions of the opening 23 of the closing plate 17 adhere to each other and become strong against the load in the front-rear direction. As shown at 42, moderate drag persists over a longer deformation stroke than in the conventional vehicle shown by line 41. That is, the collision energy is efficiently absorbed, and the living space of the cab 31 is secured.
【００１８】[0018]
【発明の効果】本発明は上述のように、断面コ字形をな
す左右１対の側枠の前端部に第１の横部材を結合し、第
１の横部材の上面に配設したキヤブマウントにキヤブの
前端床部を軸支持し、各側枠の上下縁部に側枠を閉断面
とする閉鎖板を結合し、左右１対の側枠の間に支持した
内燃機関よりも前方部分に第２の横部材を結合し、前記
閉鎖板の第１，第２の横部材の間の部分に開口を設けた
ので、車両の前面衝突時、側枠の湾曲部の変形を防止し
つつ軸圧壊相当の側枠の変形特性を示し、追突時はキヤ
ブ支持部の破断を防止しつつ側枠に上下方向の曲げを発
生させるので、シヤシフレームの変形により衝突エネル
ギが効率的に吸収され、キヤブの生存空間が確保され
る。As described above, according to the present invention, the first horizontal member is connected to the front ends of the pair of left and right side frames having a U-shaped cross section, and the cap mount is disposed on the upper surface of the first horizontal member. The front end floor of the cab is pivotally supported, and the upper and lower edges of each side frame are connected with a closing plate having a closed cross section of the side frame. Since the two lateral members are connected to each other and an opening is provided in a portion between the first and second lateral members of the closing plate, the axial crushing can be performed while preventing the curved portion of the side frame from being deformed at the time of a frontal collision of the vehicle. It shows considerable deformation characteristics of the side frame.In the case of a rear-end collision, the side frame is bent in the vertical direction while preventing breakage of the cab support part. Living space is secured.
【図１】本発明に係るキヤブオーバ型貨物車両のシヤシ
フレームの平面図である。FIG. 1 is a plan view of a shiyashi frame of a carryover type freight vehicle according to the present invention.
【図２】同シヤシフレーム構造の要部を示す斜視図であ
る。FIG. 2 is a perspective view showing a main part of the palm frame structure.
【図３】車両の衝突時のシヤシフレーム構造の変形状態
を示す側面図である。FIG. 3 is a side view showing a deformed state of the shiyashi frame structure at the time of a vehicle collision.
【図４】車両の追突時のキヤブの変形状態を示す側面図
である。FIG. 4 is a side view showing a deformed state of the cab at the time of a rear-end collision of the vehicle.
【図５】本発明による車両と従来の車両との各シヤシフ
レームの変位と荷重との関係を表す線図である。FIG. 5 is a diagram showing the relationship between the displacement and load of each of the shiyasu frames of the vehicle according to the present invention and the conventional vehicle.
【図６】車両の前面衝突直前の状態を示す側面図であ
る。FIG. 6 is a side view showing a state immediately before a frontal collision of the vehicle.
【図７】車両の追突直前の状態を示す側面図である。FIG. 7 is a side view showing a state immediately before a rear-end collision of the vehicle.
【図８】従来の車両の側枠のキヤブ支持部を示す斜視図
である。FIG. 8 is a perspective view showing a cap support portion of a side frame of a conventional vehicle.
【図９】従来の車両の追突時のキヤブの変形状態を示す
側面図である。FIG. 9 is a side view showing a deformed state of a cap at the time of a rear-end collision of a conventional vehicle.
２：第１の横部材 ５：第２の横部材 ７：側枠 ７
ａ：縁部 １０：内燃機関１７：閉鎖板 ２０：シヤシ
フレーム ２２：キヤブマウント ２３：開口２５：板
ばね ２６：前輪 ２７：後輪 ３０：障壁（バリア）
３１：キヤブ2: First horizontal member 5: Second horizontal member 7: Side frame 7
a: Edge 10: Internal combustion engine 17: Closure plate 20: Shiyasu frame 22: Cab mount 23: Opening 25: Leaf spring 26: Front wheel 27: Rear wheel 30: Barrier
31: Cab
Claims (1)
に第１の横部材を結合し、第１の横部材の上面に配設し
たキヤブマウントにキヤブの前端床部を軸支持し、各側
枠の上下縁部に側枠を閉断面とする閉鎖板を結合し、左
右１対の側枠の間に支持した内燃機関よりも前方部分に
第２の横部材を結合し、前記閉鎖板の第１，第２の横部
材の間の部分に開口を設けたことを特徴とするキヤブオ
ーバ型貨物車両のシヤシフレーム構造。A first horizontal member is connected to the front ends of a pair of left and right side frames having a U-shaped cross section, and a front end floor portion of the cabinet is axially supported by a mount mounted on an upper surface of the first horizontal member. And, a closing plate having a side frame as a closed cross section is connected to upper and lower edges of each side frame, and a second horizontal member is connected to a portion forward of the internal combustion engine supported between a pair of left and right side frames, An opening is provided in a portion between the first and second horizontal members of the closing plate, and a shiyashi frame structure of a cap-over type freight vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000123589A JP4212756B2 (en) | 2000-04-25 | 2000-04-25 | A coconut frame structure for a cab-over type freight vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000123589A JP4212756B2 (en) | 2000-04-25 | 2000-04-25 | A coconut frame structure for a cab-over type freight vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001301647A true JP2001301647A (en) | 2001-10-31 |
| JP4212756B2 JP4212756B2 (en) | 2009-01-21 |
Family
ID=18633870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000123589A Expired - Fee Related JP4212756B2 (en) | 2000-04-25 | 2000-04-25 | A coconut frame structure for a cab-over type freight vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4212756B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016210322A (en) * | 2015-05-11 | 2016-12-15 | いすゞ自動車株式会社 | Vehicle body front part structure |
| CN108749925A (en) * | 2018-05-28 | 2018-11-06 | 江铃汽车股份有限公司 | A kind of vehicle frame fore device with crusherbull zone function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016210322A (en) * | 2015-05-11 | 2016-12-15 | いすゞ自動車株式会社 | Vehicle body front part structure |
| CN108749925A (en) * | 2018-05-28 | 2018-11-06 | 江铃汽车股份有限公司 | A kind of vehicle frame fore device with crusherbull zone function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4212756B2 (en) | 2009-01-21 |
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