JPH0113019Y2 - - Google Patents
Info
- Publication number
- JPH0113019Y2 JPH0113019Y2 JP1983166062U JP16606283U JPH0113019Y2 JP H0113019 Y2 JPH0113019 Y2 JP H0113019Y2 JP 1983166062 U JP1983166062 U JP 1983166062U JP 16606283 U JP16606283 U JP 16606283U JP H0113019 Y2 JPH0113019 Y2 JP H0113019Y2
- Authority
- JP
- Japan
- Prior art keywords
- driver
- seat
- frame
- front frame
- rear frame
- 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.)
- Expired
Links
- 230000008602 contraction Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
【考案の詳細な説明】
本考案は、前方フレームと後方フレームとを屈
折自在に連結した車体屈折式操舵装輪車両に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a steering wheeled vehicle of a vehicle body bending type in which a front frame and a rear frame are connected in a bendable manner.
従来、この種の車両としては第１図、第２図に
示すように、前輪１と作業機２とを備えた前方フ
レーム３と、後輪４を備えた後方フレーム５とを
センタピン６で屈折自在に連結し、前方フレーム
３に運転席７を設けた車両、第３図、第４図に示
すように運転席７を後方フレーム５に設けた車両
が知られている。 Conventionally, in this type of vehicle, as shown in FIGS. 1 and 2, a front frame 3 having a front wheel 1 and a work implement 2, and a rear frame 5 having a rear wheel 4 are bent at a center pin 6. Vehicles in which the driver's seat 7 is freely connected to the front frame 3, and vehicles in which the driver's seat 7 is provided in the rear frame 5 as shown in FIGS. 3 and 4 are known.
そして、前者の運転席７が前方フレーム３にあ
る車両においては、運転席６が前方フレーム３と
常に同一向きとなるので、走行時の前方視界が良
いと共に、作業機２を常に真直に目視できるから
作業性が良い。 In the former vehicle where the driver's seat 7 is located on the front frame 3, the driver's seat 6 always faces the same direction as the front frame 3, so the forward visibility is good while driving and the work equipment 2 can always be viewed straight. Good workability.
しかし、その反面に前後進時ともに車両の進行
方向が、スタート時の前方フレーム３に対する後
方フレーム５の角度θ1によつて決定されるので、
スタート時にはオペレータが後方をふりむいて前
記角度θ1を確認しないとオペレータの意志と違う
方向に発進する可能性があり、特に後進時は注意
が必要であり、ややもすると初心者には困難であ
つた。 However, on the other hand, since the direction of movement of the vehicle in both forward and backward motion is determined by the angle θ 1 of the rear frame 5 with respect to the front frame 3 at the start,
At the time of starting, if the operator does not look back and check the angle θ 1 , there is a possibility that the vehicle will start in a direction different from the operator's intention, and care must be taken especially when reversing, which may be difficult for beginners. .
また、後者の運転席７が後方フレーム５に設け
てある車両においては、運転席６が前方フレーム
３及び作業機２と異なる向きとなるので前方視界
が悪いと共に、作業性が悪いが、オペレータは運
転席７より前方フレーム３を常に目視できて車両
の走行方向を常に認知できるとの利点を有し、特
に後進時は前者に比し運転が容易である。 In addition, in the latter vehicle in which the driver's seat 7 is provided on the rear frame 5, the driver's seat 6 is oriented in a different direction from the front frame 3 and the work equipment 2, resulting in poor forward visibility and poor workability. It has the advantage that the front frame 3 can always be seen from the driver's seat 7 and the running direction of the vehicle can always be recognized, and driving is easier than the former, especially when going backwards.
この様に、運転席７が前方フレーム３に設けて
ある車両と後方フレーム５に設けてある車両とで
は、相反する利点と不具合とを有するので、通常
は作業条件やオペレータの好み等によつてどちら
かに決定しているが、他の作業条件や好みの異な
るオペレータが運転する場合には好ましくない。 As described above, vehicles in which the driver's seat 7 is provided in the front frame 3 and vehicles in which the driver's seat 7 is provided in the rear frame 5 have contradictory advantages and disadvantages, so it is usually determined by work conditions, operator preference, etc. Although one has been decided, it is not preferable if the operation is performed by operators with different working conditions or preferences.
本考案は上記の事情に鑑みなされたものであ
り、その目的は、運転席を前方フレームの向きと
後方フレームの向きとのどちらにでも選択的に合
せることができるようにした車体屈折式操舵装輪
車両を提供することである。 The present invention was developed in view of the above circumstances, and its purpose is to provide a vehicle body refraction type steering system that allows the driver's seat to be selectively aligned with either the front frame orientation or the rear frame orientation. To provide wheeled vehicles.
以下第５図以降を参照して本考案の実施例を説
明する。 Embodiments of the present invention will be described below with reference to FIG. 5 and subsequent figures.
なお、従来と同一部材は符号を同一とする。 Note that members that are the same as those in the prior art have the same reference numerals.
前方フレーム３には上下前横板８，９が設けら
れ、後方フレーム５には上下後横板１０，１１が
設けてあり、上下前横板８，９と上下後横板１
０，１１とは上下のセンタピン６，６で連結さ
れ、前方フレーム３と後方フレーム５とはセンタ
ピン６，６を中心として屈折自在に連結してあ
る。 The front frame 3 is provided with upper and lower front horizontal plates 8 and 9, and the rear frame 5 is provided with upper and lower rear horizontal plates 10 and 11.
0 and 11 are connected by upper and lower center pins 6, 6, and the front frame 3 and rear frame 5 are connected so as to be bendable around the center pins 6, 6.
前記後方フレーム５には上下横板１２，１３を
介して筒体１４が固設され、この筒体１４には軸
１５が回転自在に挿通してあり、この軸１５の中
心１５ａは前記センタピン６の中心６ａと同一位
置となつていると共に、軸１５の上部には運転席
架台１６が固設され、この運転席架台１６には運
転席７が設けてある。 A cylindrical body 14 is fixed to the rear frame 5 via upper and lower horizontal plates 12 and 13, and a shaft 15 is rotatably inserted through the cylindrical body 14. The driver's seat mount 16 is fixed to the upper part of the shaft 15, and the driver's seat 7 is provided on the driver's seat mount 16.
前記筒体１４の内周面には複数の環状溝１７が
形成され、この環状溝１７には複数のホース１８
が接続してあると共に、前記軸１５には前記各環
状溝１７に開口する複数の油孔１９が形成されて
筒体１４と軸１５とでスイベルジヨイントを構成
している。 A plurality of annular grooves 17 are formed in the inner peripheral surface of the cylinder 14, and a plurality of hoses 18 are formed in the annular groove 17.
are connected to each other, and the shaft 15 is formed with a plurality of oil holes 19 opening into each of the annular grooves 17, so that the cylindrical body 14 and the shaft 15 form a swivel joint.
そして、前記各油孔１９が運転席７に設けた作
業機操作・変速レバ・ブレーキペタル・アクセル
ペタル・ハンドル等の操縦機器にホース２０を介
して接続され、前記各ホース１８が油圧源又は作
業機シリンダ・変速シリンダ・ブレーキアクチユ
エータ・エンジン制御シリンダ・ステアリングシ
リンダ等の油圧空圧機器に接続してある。 Each of the oil holes 19 is connected via a hose 20 to operating equipment such as a work machine operation, a gear shift lever, a brake pedal, an accelerator pedal, a handle, etc. provided in the driver's seat 7, and each of the hoses 18 is connected to a hydraulic power source or a working device. It is connected to hydraulic and pneumatic equipment such as machine cylinders, speed change cylinders, brake actuators, engine control cylinders, and steering cylinders.
なお、照明燈とスイツチとを接続する電気配線
も図示しない前記スイベルジヨイントと同一中心
位置に設けたロータリジヨイントで接続してあ
る。 The electric wiring connecting the illumination light and the switch is also connected by a rotary joint (not shown) provided at the same central position as the swivel joint.
前記運転席架台１６に固設したレバ２１と後方
フレーム５とに亘つてシリンダ２２が枢着連結し
てあると共に、該シリンダ２２の縮少、伸長室２
２ａ，２２ｂは制御バルブ２３を介して油圧源２
４とタンク２５とに接続制御される。 A cylinder 22 is pivotally connected to a lever 21 fixed to the driver's seat frame 16 and the rear frame 5, and the cylinder 22 has a contraction and expansion chamber 2.
2a and 22b are connected to the hydraulic power source 2 via the control valve 23.
4 and tank 25 for connection control.
そして、制御バルブ２３は伸長位置イ、縮小位
置ロ、中立位置ハを備え、変速機前後進信号発生
器２６、屈折角信号発生器２７、運転席固定切換
信号発生器２８等よりの変速機前後進信号R1、
屈折角信号R2、切換信号R3，R4が入力される演
算制御素子２９よりの信号で切換えられる。 The control valve 23 has an extended position A, a contracted position B, and a neutral position C. The control valve 23 has an extended position A, a contracted position B, and a neutral position C. Advance signal R 1 ,
The refraction angle signal R 2 and switching signals R 3 and R 4 are switched by a signal from the arithmetic control element 29 that is input.
例えば、前方フレーム３に運転席７を設けると
の信号R3が入力された状態で、屈折角信号R2が
入力されると、演算制御素子２９より伸縮位置切
換信号が制御バルブ２３に入力されて伸長位置イ
又は縮少位置ロに切換えられ、シリンダ２２が伸
長又は縮少して運転席７を、後方フレーム５に対
する前方フレーム３の揺動に追従して揺動して運
転席７を前方フレーム３と同一向きとする。 For example, when the refraction angle signal R 2 is input while the signal R 3 indicating that the driver's seat 7 is installed in the front frame 3 is input, a telescopic position switching signal is input from the arithmetic control element 29 to the control valve 23 . The cylinder 22 is extended or retracted, and the driver's seat 7 is swung to follow the oscillation of the front frame 3 relative to the rear frame 5, and the driver's seat 7 is moved to the front frame. Same direction as 3.
また、後方フレーム５に運転席７を設けるとの
信号R4が入力されると、制御バルブ２３は伸長
位置イに切換えられて運転席７は後方フレーム５
と同一向きとなり、その後に中立位置ハに切換え
られてシリンダ２２はロツクされて運転席７は前
述の状態で後方フレーム５に固定される。 Further, when the signal R4 indicating that the driver's seat 7 is installed in the rear frame 5 is input, the control valve 23 is switched to the extended position A, and the driver's seat 7 is installed in the rear frame 5.
Then, the cylinder 22 is locked and the driver's seat 7 is fixed to the rear frame 5 in the above-described state.
なお、屈折角信号R2に応じて運転席７を前方
フレーム３又は後方フレーム５に対して任意の角
度位置とするようにしても良いと共に、前進後に
は前方フレーム３の向きに運転席７を合せ、後進
時には後方フレーム５の向きに運転席７を合せる
こともできる。 Note that the driver's seat 7 may be set at any angle position with respect to the front frame 3 or the rear frame 5 according to the refraction angle signal R2 , and the driver's seat 7 may be set in the direction of the front frame 3 after moving forward. The driver's seat 7 can also be aligned with the direction of the rear frame 5 when traveling in reverse.
なお、運転席架台１６に設けた軸１５と筒体１
４とはセンタピン６の中心６ａを中心として相対
的に回転自在であるから、運転席７は後方フレー
ム５又は前方フレーム３に対して回転変位でき、
何ら支障なく操舵できる。 Note that the shaft 15 provided on the driver's seat frame 16 and the cylinder body 1
4 is relatively rotatable around the center 6a of the center pin 6, so the driver's seat 7 can be rotationally displaced relative to the rear frame 5 or the front frame 3.
It can be steered without any problems.
また、筒体１４と軸１５とはスイベルジヨイン
トとなつているから、運転席７内の操縦機器と前
方、後方フレーム３，５に設けた油圧源、油圧機
器とを接続連通でき、運転席７より操縦できる。 In addition, since the cylinder body 14 and the shaft 15 are swivel jointed, the control equipment in the driver's seat 7 can be connected and communicated with the hydraulic power sources and hydraulic equipment provided in the front and rear frames 3 and 5, and the driver's seat Can be operated from 7.
本考案は以上の様になり、制御バルブ２３を切
換えることで油圧源２４の圧油をシリンダ２２の
縮少室２２ａ、伸長室２２ｂに供給してシリンダ
２２を縮少、伸長することで、運転席７を前方フ
レーム３又は後方フレーム５のどちらか一方に対
して回転できる。 The present invention is as described above, and by switching the control valve 23, the pressure oil of the hydraulic source 24 is supplied to the contraction chamber 22a and the expansion chamber 22b of the cylinder 22, and the cylinder 22 is contracted and expanded. The seat 7 can be rotated relative to either the front frame 3 or the rear frame 5.
したがつて、前方フレーム３と後方フレーム５
を屈折させた時に運転席７を、前方フレーム３の
向き又は後方フレーム５の向きのどちらにも選択
的に合せることができ、作業条件又はオペレータ
の好みに合つた車体屈折式操舵装輪車両とするこ
とができる。 Therefore, the front frame 3 and the rear frame 5
When the driver's seat 7 is bent, the driver's seat 7 can be selectively aligned with either the direction of the front frame 3 or the direction of the rear frame 5, making it possible to create a body-folding steering wheeled vehicle that suits work conditions or operator preference. can do.
第１図、第２図は従来例の正面図と平面図、第
３図、第４図は異なる従来例の正面図と平面図、
第５図は本考案の実施例を示す正面図、第６図は
要部断面図、第７図はその平面図である。
１は前輪、３は前方フレーム、４は後輪、５は
後方フレーム、６はセンタピン、７は運転席、２
２はシリンダ。
1 and 2 are a front view and a plan view of a conventional example, and FIGS. 3 and 4 are a front view and a plan view of a different conventional example,
FIG. 5 is a front view showing an embodiment of the present invention, FIG. 6 is a sectional view of the main part, and FIG. 7 is a plan view thereof. 1 is the front wheel, 3 is the front frame, 4 is the rear wheel, 5 is the rear frame, 6 is the center pin, 7 is the driver's seat, 2
2 is a cylinder.
Claims (1)
えた後方フレーム５とをセンタピン６で屈折自在
に連結し、前記前方フレーム３又は後方フレーム
５のどちらか一方に運転席７を、前記センタピン
６の中心６ａと同一位置を中心として前記前方フ
レーム３と後方フレーム５の屈折方向に回転自在
に設けると共に、該運転席７と前方フレーム３又
は後方フレーム５のどちらか一方とに亘つてシリ
ンダ２２を、そのシリンダ２２を伸長、縮少する
と運転室７が前記前方フレーム３又は後方フレー
ム５のどちらか一方に対して回転するように連結
し、該シリンダ２２の縮少室２２ａ、伸長室２２
ｂに油圧源２４の圧油を供給制御する制御バルブ
２３を設けたことを特徴とする車体屈折式操舵装
輪車両。 A front frame 3 having a front wheel 1 and a rear frame 5 having a rear wheel 4 are refractably connected by a center pin 6, and a driver's seat 7 is attached to either the front frame 3 or the rear frame 5 by the center pin. A cylinder 22 is provided rotatably in the bending direction of the front frame 3 and the rear frame 5 about the same position as the center 6a of the driver's seat 7 and either the front frame 3 or the rear frame 5. When the cylinder 22 is extended or contracted, the driver's cab 7 is connected to rotate with respect to either the front frame 3 or the rear frame 5, and the contraction chamber 22a and the expansion chamber 22 of the cylinder 22 are
1. A steering wheeled vehicle of a vehicle body refraction type, characterized in that a control valve 23 for controlling the supply of pressure oil from a hydraulic source 24 is provided at b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16606283U JPS6073683U (en) | 1983-10-28 | 1983-10-28 | Vehicle with refraction steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16606283U JPS6073683U (en) | 1983-10-28 | 1983-10-28 | Vehicle with refraction steering wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6073683U JPS6073683U (en) | 1985-05-23 |
| JPH0113019Y2 true JPH0113019Y2 (en) | 1989-04-17 |
Family
ID=30363652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16606283U Granted JPS6073683U (en) | 1983-10-28 | 1983-10-28 | Vehicle with refraction steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6073683U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100961431B1 (en) * | 2008-02-25 | 2010-06-09 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Relive valve |
-
1983
- 1983-10-28 JP JP16606283U patent/JPS6073683U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6073683U (en) | 1985-05-23 |
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