JPH0673758A - Lifting-lowering step device for wheel loader - Google Patents
Lifting-lowering step device for wheel loaderInfo
- Publication number
- JPH0673758A JPH0673758A JP22976292A JP22976292A JPH0673758A JP H0673758 A JPH0673758 A JP H0673758A JP 22976292 A JP22976292 A JP 22976292A JP 22976292 A JP22976292 A JP 22976292A JP H0673758 A JPH0673758 A JP H0673758A
- Authority
- JP
- Japan
- Prior art keywords
- section
- fender
- rear vehicle
- wheel loader
- driver
- 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
Landscapes
- Vehicle Step Arrangements And Article Storage (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はホイールローダの昇降ス
テップ装置に関するものであり、特に、ステップの昇降
性の向上に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating / lowering step device for a wheel loader, and more particularly to improvement of elevating / lowering step.
【0002】[0002]
【従来の技術】ホイールローダは、バケット及びアーム
等の建設機械を備えた前車両部と、機関部及び操作機構
を搭載した後車両部とに二分割されており、前車両部と
後車両部とはピン結合されている。そして、ステアリン
グ機構と油圧シリンダとを連動させて前車両部を左右へ
回向自在にしてある。又、後車両部には運転席を設けて
あり、後車両部の側面に昇降用のステップを設けてあ
る。2. Description of the Related Art A wheel loader is divided into a front vehicle section equipped with a construction machine such as a bucket and an arm and a rear vehicle section equipped with an engine section and an operating mechanism. And are pin-coupled. The steering mechanism and the hydraulic cylinder are interlocked with each other so that the front vehicle section can be freely rotated to the left and right. A driver's seat is provided in the rear vehicle section, and a step for raising and lowering is provided on the side surface of the rear vehicle section.
【0003】[0003]
【発明が解決しようとする課題】従来のホイールローダ
は、前述したように後車両部の側面に昇降用のステップ
を設けてあるが、後車両部側面の下部位置に設けてある
ため、オペレータが運転席に乗降するに当って、ステッ
プと運転席のフロアとの高さの差が大きく、乗降が困難
であった。As described above, the conventional wheel loader is provided with the step for raising and lowering on the side surface of the rear vehicle portion, but since it is provided at the lower position of the side surface of the rear vehicle portion, the operator can When getting on and off the driver's seat, there was a large difference in height between the step and the floor of the driver's seat, making it difficult to get on and off.
【0004】そこで、ホイールローダの運転動作及び安
全性に支障を来たすことなく、運転席への昇降が容易に
行えるようにするために解決すべき技術的課題が生じて
くるのであり、本発明はこの課題を解決することを目的
とする。Therefore, there arises a technical problem to be solved in order to easily move up and down to the driver's seat without impairing the driving operation and safety of the wheel loader. The purpose is to solve this problem.
【0005】[0005]
【課題を解決するための手段】本発明は上記目的を達成
するために提案されたものであり、バケット及びアーム
等の建設機械を備えた前車両部と、機関部及び操作機構
を搭載した後車両部とに二分割され、前車両部と後車両
部とをピン結合するとともにステアリング機構と油圧シ
リンダとを連動させて前車両部を左右へ回向自在にした
ホイールローダに於いて、後車両部の側面に上部ステッ
プと下部ステップとを設け、上部ステップは後車両部の
上部側面位置に設けるとともに、下部ステップは後車両
部の下部側面前方まで囲繞するように固設し、且つ、下
部ステップを前車両部に設けた前車輪後部のフェンダの
下端部より低位置に設けたホイールローダの昇降ステッ
プ装置を提供するものである。SUMMARY OF THE INVENTION The present invention has been proposed in order to achieve the above-mentioned object, and after mounting a front vehicle section equipped with a construction machine such as a bucket and an arm, an engine section and an operating mechanism. In a wheel loader that is divided into two parts, a front vehicle part and a rear vehicle part are pin-coupled, and a steering mechanism and a hydraulic cylinder are interlocked to allow the front vehicle part to rotate left and right. An upper step and a lower step are provided on the side surface of the rear part, the upper step is provided at an upper side surface position of the rear vehicle part, and the lower step is fixed so as to surround the lower side surface of the rear vehicle part. The present invention provides an elevating step device for a wheel loader, which is provided at a position lower than the lower end of the fender at the rear of the front wheel provided at the front vehicle part.
【0006】[0006]
【作用】本発明の昇降ステップ装置は後車両部の側面に
上部ステップと下部ステップとを二段構成に設けてあ
る。従って、オペレータが運転席へ乗降するに当り、運
転席のフロアと各ステップ並びに地上との間隔が小とな
り、乗降が極めて容易となる。又、下部ステップは前車
両部の前車輪後部のフェンダの下端部より低位置に設け
てあるため、前車両部を最大に回向した場合であって
も、フェンダの下端部が下部ステップに接触することは
ない。In the lifting step device of the present invention, the upper step and the lower step are provided in two stages on the side surface of the rear vehicle section. Therefore, when the operator gets on and off the driver's seat, the space between the floor of the driver's seat and each step and the ground becomes small, and the getting on and off becomes extremely easy. Also, since the lower step is located lower than the lower end of the fender behind the front wheels of the front vehicle, the lower end of the fender contacts the lower step even when the front vehicle is maximally rotated. There is nothing to do.
【0007】[0007]
【実施例】以下、本発明の一実施例を図面に従って詳述
する。図1及び図2はホイールローダの全体図であり、
バケット11及びアーム12等の建設機械を備えた前車
両部13と、エンジンや油圧装置などの機関部(図示せ
ず)、運転席14及び操作機構15等を搭載した後車両
部16とに二分割されている。前車両部13の中央後部
にブラケット17を設けるとともに、後車両部16の中
央前部に連結部18を突設し、前記ブラケット17と連
結部18とをピン結合して前車両部13と後車両部16
とを連結する。又、後車両部16の連結部18の側方か
ら油圧シリンダ19を前方へ突設し、該油圧シリンダ1
9のピストンロッド19aを前車両部13のブラケット
17の側方に接続する。An embodiment of the present invention will be described in detail below with reference to the drawings. 1 and 2 are overall views of the wheel loader,
A front vehicle section 13 including construction equipment such as a bucket 11 and an arm 12 and an engine section (not shown) such as an engine and a hydraulic device, a rear vehicle section 16 on which a driver's seat 14 and an operating mechanism 15 are mounted. It is divided. A bracket 17 is provided at the center rear part of the front vehicle part 13, and a connecting part 18 is projectingly provided at the center front part of the rear vehicle part 16, and the bracket 17 and the connecting part 18 are pin-connected to each other to form the rear vehicle part 13 and the rear part. Vehicle section 16
And are connected. Further, a hydraulic cylinder 19 is provided so as to project from the side of the connecting portion 18 of the rear vehicle portion 16 so as to project forward.
The piston rod 19a of 9 is connected to the side of the bracket 17 of the front vehicle unit 13.
【0008】而して、当該ホイールローダはオペレータ
が操作機構15を操作してアーム12及びバケット11
等の建設機械を操作するとともに、ステアリング機構2
0を操作して前車両部13を左右へ回向する。例えば、
オペレータが左方向へステアリング機構20を操作すれ
ば、油圧装置の作動によって油圧シリンダ19のピスト
ンロッドが収縮し、後車両部16に対して前車両部13
はブラケット17と連結部18のピン結合部を中心に、
図2に於いて反時計方向へ回動する。従って、当該ホイ
ールローダは左旋回することになる。In the wheel loader, the operator operates the operation mechanism 15 to operate the arm 12 and the bucket 11.
Steering mechanism 2 while operating construction machines such as
Operate 0 to turn the front vehicle section 13 to the left and right. For example,
When the operator operates the steering mechanism 20 in the leftward direction, the piston rod of the hydraulic cylinder 19 contracts due to the operation of the hydraulic device, and the front vehicle portion 13 with respect to the rear vehicle portion 16 is contracted.
Is centered around the pin connecting part of the bracket 17 and the connecting part 18,
It rotates counterclockwise in FIG. Therefore, the wheel loader turns left.
【0009】後車両部16の後車輪21,21の前方位
置には、左右に燃料タンク22及びオイルタンク23が
設けられており、夫々の側面に上部ステップ24及び下
部ステップ25とが設けられている。燃料タンク22及
びオイルタンク23は、左右略対称形であり、上部が前
後方向に長く形成され、下部になるに従って前後方向が
短くなっている。A fuel tank 22 and an oil tank 23 are provided on the left and right at the front positions of the rear wheels 21, 21 of the rear vehicle section 16, and an upper step 24 and a lower step 25 are provided on the respective side surfaces. There is. The fuel tank 22 and the oil tank 23 are substantially symmetrical to each other in the left-right direction.
【0010】図3は燃料タンク22の上部を示す図1の
A−A線矢視図であるが、後車両部16の側面で且つ後
車輪21の前方位置に燃料タンク22の外側面が湾曲す
るように膨出して設けられている。そして、該燃料タン
ク22の側面に上部ステップ24が突設されており、上
部ステップ24の上部位置は燃料タンク22の側面に凹
部26を設けて、オペレータの足が上部ステップへ深く
乗るように形成する。尚、この凹部26は必ずしも必要
なものではなく、燃料タンク22の加工性等を考慮して
凹部26を設けなくともよい。又、図示は省略するが、
ホイールローダの他側部に設けたオイルタンク23も同
様の形状に形成され、上部ステップ24が設けられてい
る。FIG. 3 is a view showing the upper portion of the fuel tank 22 taken along the line AA of FIG. 1, and the outer side surface of the fuel tank 22 is curved on the side surface of the rear vehicle portion 16 and at the front position of the rear wheel 21. It is provided so as to swell. An upper step 24 is provided on the side surface of the fuel tank 22, and a recess 26 is formed on the side surface of the fuel tank 22 at the upper position of the upper step 24 so that the operator's foot can ride deeply on the upper step. To do. The recess 26 is not always necessary, and the recess 26 may not be provided in consideration of the workability of the fuel tank 22. Although not shown,
The oil tank 23 provided on the other side of the wheel loader is also formed in the same shape and has an upper step 24.
【0011】図4は燃料タンク22の下部を示す図1の
B−B線矢視図であるが、図3に示した燃料タンク22
の上部と比較して、前後方向の長さが短くなっている。
即ち、該燃料タンク22は上部から下部に至るに伴って
先細りの状態となり、燃料タンク22の下部には後車両
部16の下部側面の前方まで囲繞するように下部ステッ
プ25が設けられているが、図3に示すように下部ステ
ップ25は燃料タンク22の側面から一部しか突出して
いない。従って、通常の運転中に下部ステップが作業の
邪魔になることはない。又、図1に示すように、前車両
部13の前車輪27の後部に設けたフェンダ28の下端
部28aと比較して、前記下部ステップ25の取付位置
が低位置になっている。FIG. 4 is a view showing the lower portion of the fuel tank 22 taken along the line BB of FIG. 1, but the fuel tank 22 shown in FIG.
The length in the front-back direction is shorter than that of the upper part.
That is, the fuel tank 22 is tapered from the upper portion to the lower portion, and the lower step 25 is provided at the lower portion of the fuel tank 22 so as to surround the lower side surface of the rear vehicle portion 16 to the front. As shown in FIG. 3, the lower step 25 projects only partially from the side surface of the fuel tank 22. Therefore, the lower steps do not interfere with the work during normal operation. Further, as shown in FIG. 1, the mounting position of the lower step 25 is lower than that of the lower end portion 28a of the fender 28 provided at the rear portion of the front wheel 27 of the front vehicle portion 13.
【0012】而して、本発明は上部ステップ24と下部
ステップ25の二段の昇降ステップ装置を設けたことに
より、オペレータが運転席14へ乗降するに当っては、
図1及び図2に示すサイドグリップ29を把持しながら
先ず下部ステップ25に一方の足を乗せ、次に他方の足
を上部ステップ24に乗せて、更に前記一方の足をフロ
ア30まで持ち上げる。従って、昇降ステップ装置を上
下二段にしたことから運転席のフロア30と上部ステッ
プ24及び下部ステップ25並びに地上との間隔が小に
なり、オペレータの乗降動作が極めて容易になった。Thus, the present invention is provided with the two-step lifting device of the upper step 24 and the lower step 25, so that when the operator gets on and off the driver's seat 14,
While gripping the side grip 29 shown in FIGS. 1 and 2, first, one foot is put on the lower step 25, then the other foot is put on the upper step 24, and the one foot is further lifted to the floor 30. Therefore, since the elevating step device is vertically arranged in two stages, the distance between the floor 30 of the driver's seat, the upper step 24, the lower step 25, and the ground becomes small, and the operator's getting on / off operation becomes extremely easy.
【0013】そして、例えば、前車両部13を左方向へ
最大に回向した場合には、図5に示すように、前車両部
13の前車輪27及びフェンダ28が後車両部16の燃
料タンク22に接近する。そして、フェンダ28の下端
部28aは燃料タンク22の上部側面及び下部ステップ
25よりやや内側へ入り込む。然し、前述したように、
燃料タンク22の下部は上部と比べて前後方向の長さが
短くなっており、且つ、下部ステップ25の取付位置が
フェンダ28の下端部28aより低位置になっているた
め、フェンダ28が燃料タンク22及び下部ステップ2
5に接触することはない。Then, for example, when the front vehicle section 13 is turned to the left to the maximum, as shown in FIG. 5, the front wheels 27 and the fenders 28 of the front vehicle section 13 are connected to the fuel tank of the rear vehicle section 16. Approach 22. Then, the lower end portion 28a of the fender 28 enters slightly inside the upper side surface of the fuel tank 22 and the lower step 25. However, as mentioned above,
The lower portion of the fuel tank 22 has a shorter length in the front-rear direction than the upper portion, and the mounting position of the lower step 25 is lower than the lower end portion 28a of the fender 28. 22 and lower step 2
No contact with 5.
【0014】又、図示は省略するが、前車両部13を右
方向へ最大に回向した場合にも、図5とは対称位置で同
様の作用を為し、前車輪27のフェンダ28がオイルタ
ンク23及び下部ステップ25へ接触することはない。
尚、本発明は、本発明の精神を逸脱しない限り種々の改
変を為すことができ、そして、本発明が該改変されたも
のに及ぶことは当然である。Although illustration is omitted, even when the front vehicle portion 13 is turned to the right to the maximum, the same operation is performed at a position symmetrical to that of FIG. 5, and the fender 28 of the front wheel 27 is oiled. There is no contact with the tank 23 and the lower step 25.
The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified one.
【0015】[0015]
【発明の効果】本発明は上記一実施例に詳述したよう
に、後車両部の側面に上部ステップと下部ステップとを
設けて二段構成の昇降ステップ装置となっている。従っ
て、運転席のフロアと各ステップとの間隔、並びに地上
からのステップへの高さが小となり、オペレータが運転
席へ乗降するのが極めて容易となって作業性が向上す
る。As described in detail in the above one embodiment, the present invention is a lifting step device having a two-stage structure in which an upper step and a lower step are provided on the side surface of the rear vehicle section. Therefore, the distance between the floor of the driver's seat and each step and the height from the ground to the step are small, and it is extremely easy for the operator to get on and off the driver's seat, and the workability is improved.
【0016】又、下部ステップは後車両部の下部側面前
方まで囲繞するように設けられているので、確実に足を
乗せることができ、且つ、前車輪後部のフェンダの下端
部より下部ステップが低位置に設けられているため、前
車両部を最大に回向した場合にフェンダの下端部が後車
両部の側面及び下部ステップに接触することはない。Further, since the lower step is provided so as to surround up to the front of the lower side surface of the rear vehicle part, it is possible to surely put the foot on the lower step, and the lower step is lower than the lower end part of the fender at the rear part of the front wheel. Since it is provided at the position, the lower end portion of the fender does not contact the side surface and the lower step of the rear vehicle portion when the front vehicle portion is turned to the maximum.
【図1】ホイールローダの全体を示す側面図。FIG. 1 is a side view showing the entire wheel loader.
【図2】ホイールローダの全体を示す平面図。FIG. 2 is a plan view showing the entire wheel loader.
【図3】燃料タンクの上部を示す図1のA−A線矢視
図。FIG. 3 is a view showing an upper portion of a fuel tank, taken along the line AA of FIG.
【図4】燃料タンクの下部を示す図1のB−B線矢視
図。FIG. 4 is a view of the lower portion of the fuel tank as seen from the direction of arrows BB in FIG. 1.
【図5】前車両部が最大に回向した場合の前車輪のフェ
ンダと後車輪部の燃料タンク及びスラップの位置関係を
示す図1のB−B線矢視図。5 is a view taken along the line BB in FIG. 1 showing the positional relationship between the fenders of the front wheels and the fuel tanks and the slaps of the rear wheels when the front vehicle section is maximally rotated.
11 バケット 12 アーム 13 前車両部 14 運転席 15 操作機構 16 後車両部 17 ブラケット 18 連結部 19 油圧シリンダ 20 ステアリング機構 21 後車輪 22 燃料タンク 23 オイルタンク 24 上部ステップ 25 下部ステップ 27 前車輪 28 フェンダ 28a 下端部 11 Bucket 12 Arm 13 Front Vehicle Section 14 Driver's Seat 15 Operation Mechanism 16 Rear Vehicle Section 17 Bracket 18 Connecting Section 19 Hydraulic Cylinder 20 Steering Mechanism 21 Rear Wheel 22 Fuel Tank 23 Oil Tank 24 Upper Step 25 Lower Step 27 Front Wheel 28 Fender 28a Bottom edge
───────────────────────────────────────────────────── フロントページの続き (72)発明者 枝 賢次 広島県広島市安佐南区祇園3丁目12番4号 油谷重工株式会社技術部内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kenji Eda 3-12-4 Gion, Asanan-ku, Hiroshima-shi, Hiroshima Prefecture Yutani Heavy Industries Co., Ltd.
Claims (1)
た前車両部と、機関部及び操作機構を搭載した後車両部
とに二分割され、前車両部と後車両部とをピン結合する
とともにステアリング機構と油圧シリンダとを連動させ
て前車両部を左右へ回向自在にしたホイールローダに於
いて、後車両部の側面に上部ステップと下部ステップと
を設け、上部ステップは後車両部の上部側面位置に設け
るとともに、下部ステップは後車両部の下部側面前方ま
で囲繞するように固設し、且つ、下部ステップを前車両
部に設けた前車輪後部のフェンダの下端部より低位置に
設けたことを特徴とするホイールローダの昇降ステップ
装置。1. A front vehicle section provided with a construction machine such as a bucket and an arm, and a rear vehicle section equipped with an engine section and an operating mechanism, and the front vehicle section and the rear vehicle section are pin-connected to each other. In a wheel loader in which a steering mechanism and a hydraulic cylinder are interlocked to rotate a front vehicle section to the left and right, an upper step and a lower step are provided on a side surface of a rear vehicle section, and an upper step is an upper section of the rear vehicle section. In addition to being installed at the side surface position, the lower step is fixed so as to surround the lower vehicle front side of the rear vehicle portion, and the lower step is provided at a position lower than the lower end portion of the fender behind the front wheels provided in the front vehicle portion. A lifting / lowering step device for a wheel loader, which is characterized in that
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4229762A JP3033082B2 (en) | 1992-08-28 | 1992-08-28 | Wheel loader lifting step device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4229762A JP3033082B2 (en) | 1992-08-28 | 1992-08-28 | Wheel loader lifting step device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0673758A true JPH0673758A (en) | 1994-03-15 |
JP3033082B2 JP3033082B2 (en) | 2000-04-17 |
Family
ID=16897280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4229762A Expired - Fee Related JP3033082B2 (en) | 1992-08-28 | 1992-08-28 | Wheel loader lifting step device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3033082B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09142217A (en) * | 1995-11-22 | 1997-06-03 | Hitachi Constr Mach Co Ltd | Step-article housing part unit for work machine |
US6533323B1 (en) * | 1999-12-27 | 2003-03-18 | Scott D. Weaver | Tractor quarter fender |
JP2019078135A (en) * | 2017-10-27 | 2019-05-23 | 株式会社小松製作所 | Work machine |
-
1992
- 1992-08-28 JP JP4229762A patent/JP3033082B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09142217A (en) * | 1995-11-22 | 1997-06-03 | Hitachi Constr Mach Co Ltd | Step-article housing part unit for work machine |
US6533323B1 (en) * | 1999-12-27 | 2003-03-18 | Scott D. Weaver | Tractor quarter fender |
JP2019078135A (en) * | 2017-10-27 | 2019-05-23 | 株式会社小松製作所 | Work machine |
Also Published As
Publication number | Publication date |
---|---|
JP3033082B2 (en) | 2000-04-17 |
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