一種如伸縮臂叉車輛

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1、一種如伸縮臂叉車輛，人員的工作，其中涉及一種平臺(tái)（工作平臺(tái)）。 The personnel work platform includes a shut-off switch that is connected to the electronic controls for the extendible boom forklift.人事工作平臺(tái)涉及一種關(guān)閉開(kāi)關(guān)，連接伸縮臂叉的有向電子控制。 The operational controls of the extendible boom forklift include a personnel work platform control system

2、 that modifies the operation of the extendible boom forklift when the forklift is in a PWP mode.伸縮臂叉車的操作控制涉及人事工作平臺(tái)控制系統(tǒng)，修改了伸縮臂叉的叉車操作時(shí)在工作籌劃模式。 The PWP control system receives inputs from the shut-off switch, a PWP system actuation switch, a service brake pressure switch and a level sensor/switch such

3、that the control system enables the PWP mode only upon satisfying certain safety-related concerns.工作籌劃控制系統(tǒng)接受來(lái)自切斷開(kāi)關(guān)，工作系統(tǒng)驅(qū)動(dòng)開(kāi)關(guān)，制動(dòng)壓力開(kāi)關(guān)和服務(wù)水平傳感器/開(kāi)關(guān)等，該系統(tǒng)只容許在滿足一定的安全有關(guān)的問(wèn)題的工作籌劃模式的投入。 In the PWP mode, the control system engages the parking brake, declutches the transmission, locks the frame stabilizing cylind

4、er, deactivates the auxiliary and tilt hydraulic functions and limits the frame leveling rate to slow speeds.在工作籌劃模式，控制系統(tǒng)從事停車制動(dòng)，傳播穩(wěn)定的框架鎖缸，停用和傾斜液壓輔助功能，并限制幀速率低速平。 BACKGROUND OF THE INVENTION發(fā)明背景 The present invention generally relates to a boom-type vehicle, such as an extendible boom forklift, as

5、is commonly used in construction, industrial, maintenance and repair applications.本發(fā)明波及一種普遍繁華型車輛，如一種伸縮臂叉，像人們一般用于建筑，工業(yè)，保養(yǎng)和維修中的應(yīng)用。 More particularly, the present invention relates to a control system for such reach-type vehicle that is adapted for use in combination with a personnel work platform (PWP

6、) that can be used in combination with the reach-type vehicle.更具體地說(shuō)，本發(fā)明波及一種達(dá)到這種類型的車輛控制系統(tǒng)，聯(lián)合使用了人事工作平臺(tái)（工作），可以結(jié)合使用的覆蓋面型車輛改裝。 Presently, extendible boom forklifts can be used with a separate personnel work platform such that the forklift can be used to raise and lower workers standing on the platform

7、based on various workplace requirements.目前，伸縮臂叉車可以使用一種單獨(dú)的人事工作平臺(tái)，使得叉車可用于提高和減少工人在不同的工作規(guī)定為基本的平臺(tái)的地位。 The personnel work platform typically includes a pair of tubular fork receivers that receive the forks of the forklift such that the personnel work platform is supported on the forks of the forklift.人事工作

8、平臺(tái)，一般涉及一種管狀交叉接受機(jī)接受的叉車叉，這樣的人事工作平臺(tái)上的支持對(duì)叉車叉。 Typically, an operator sits in the cab of the extendible boom forklift and raises and lowers the personnel work platform into the desired location.一般狀況下，操作員坐在伸縮臂叉車的駕駛室和提高，并減少到所需的位置人員的工作平臺(tái)。 Thus, the combination of the personnel work platform and the extendib

9、le boom forklift increase the number of functions the extendible boom forklift can perform at a workplace.因此，結(jié)合人事工作平臺(tái)和伸縮臂叉的增長(zhǎng)某些功能的伸縮臂交叉可以執(zhí)行在工作場(chǎng)合。 Although the combination of the extendible boom forklift and the personnel work platform increase the utility of the extendible boom forklift, the worke

10、rs supported by the personnel work platform can be injured if the control functions of the extendible boom forklift are not modified when the personnel work platform is being used.盡管伸縮臂交叉組合和人事工作平臺(tái)增長(zhǎng)伸縮臂交叉實(shí)用程序，由人事工作平臺(tái)所支持的工人受傷如果伸縮臂叉車的控制功能時(shí)，不會(huì)修改人事工作平臺(tái)正在使用。 For example, if workers are on the platform and

11、 the forklift is allowed to move or the fork assembly is allowed to rotate, or the forklift frame is not leveled correctly, the workers could become injured as a result of such movement.例如，如果工人在平臺(tái)上，并容許叉車交叉裝配移動(dòng)或容許旋轉(zhuǎn)，或不平整叉車框架對(duì)的，工人也許成為由于這種運(yùn)動(dòng)的成果受傷。 Therefore, it is an object of the present invention t

12、o provide a control system for an extendible boom forklift or similar boom-type vehicle that limits the operation of the vehicle when the personnel work platform is being used.因此，它是本發(fā)明提供了一種類似的伸縮臂叉或臂式車輛，限制車輛操作人員的工作平臺(tái)時(shí)，正在使用的控制系統(tǒng)對(duì)象。 Further, it is an object of the present invention to provide relativel

13、y slow movement of the frame leveling cylinder when the personnel work platform is in use.此外，它是本發(fā)明的目的，以提供相對(duì)均衡的框架緩慢運(yùn)動(dòng)時(shí)，氣缸工作平臺(tái)的人員正在使用中。 A still further object of the invention is to provide a system for preventing movement of the vehicle and for providing controlled movement of the boom when the perso

14、nnel work platform is in use.該項(xiàng)發(fā)明的目的是進(jìn)一步為避免車輛移動(dòng)，并提供運(yùn)動(dòng)控制的熱潮時(shí)，工作人員使用的平臺(tái)是一種系統(tǒng)。 Further, it is an object of the present invention to incorporate a shut-off switch on the personnel work platform such that the workers standing on the personnel work platform can shut down operation of the vehicle boom from

15、 the work platform.此外，它是本發(fā)明的對(duì)象納入關(guān)閉對(duì)人事工作平臺(tái)切換，使得工人對(duì)工作人員站在平臺(tái)上可以關(guān)閉了從工作平臺(tái)車熱潮的運(yùn)作。 Yet another object of the invention is to provide a PWP control system that locks the stabilizing cylinder of the forklift and prevents operation of auxiliary hydraulics when the forklift is in a PWP mode of operation.然而，另一種

16、發(fā)明的目的是提供一種控制系統(tǒng)，工作籌劃鎖定穩(wěn)定的叉車氣缸和避免操作時(shí)，輔助液壓叉車工作籌劃中的運(yùn)作模式。 SUMMARY OF THE INVENTION本發(fā)明的概要 The present invention is a control system that modifies the operation of a boom-type vehicle, such as an extendible boom forklift, when the vehicle is being used in connection with a personnel work platform (PWP).

17、本發(fā)明是一種控制系統(tǒng)，修改，如伸縮臂叉，當(dāng)車輛正在與一間人事工作平臺(tái)（工作）連接使用了一種繁華型車輛，經(jīng)營(yíng)。 The PWP control system of the present invention modifies the operation of the forklift to increase the safety of workers positioned on the work platform.本發(fā)明的工作籌劃控制系統(tǒng)修改了叉車作業(yè)，以增長(zhǎng)對(duì)工人的安全工作平臺(tái)定位。 The PWP control system includes a shut-off switch tha

18、t is mounted near the work platform and a PWP system actuator switch.工作籌劃控制系統(tǒng)涉及關(guān)閉開(kāi)關(guān)，接近工作平臺(tái)和工作系統(tǒng)的執(zhí)行器開(kāi)關(guān)上。 The shut-off switch and PWP system actuator switch are interconnected with a control microprocessor included in the electronic operating circuit for the forklift.在關(guān)閉開(kāi)關(guān)及工作籌劃系統(tǒng)互相連接器與開(kāi)關(guān)控制微解決器中的電子工作電路

19、涉及叉車。 The control microprocessor is configured to selectively operate various operating components of the forklift in a PWP mode, which is different than the normal mode of operation.微解決器控制操作配備為選擇性的叉車工作籌劃中的多種操作模式，這是比一般的操作模式不同的組件。 The PWP system actuator switch is positioned in the cab of the forkl

20、ift and must be actuated for the PWP control system to enter the PWP mode.工作系統(tǒng)的執(zhí)行器開(kāi)關(guān)是定位在叉車駕駛室和必須為工作籌劃控制系統(tǒng)進(jìn)入工作籌劃模式驅(qū)動(dòng)。 In addition to the actuation of the PWP system actuator switch, the microprocessor must detect the simultaneous actuation of the service brakes.除了工作系統(tǒng)的開(kāi)關(guān)驅(qū)動(dòng)器，微解決器必須檢測(cè)服務(wù)的剎??車同步驅(qū)動(dòng)。 Speci

21、fically, the PWP system actuator switch and the service brakes must be simultaneously applied for a period of five seconds before the microprocessor allows the control system to enter the PWP mode.具體來(lái)說(shuō)，工作系統(tǒng)執(zhí)行機(jī)構(gòu)和服務(wù)剎車開(kāi)關(guān)必須同步申請(qǐng)了五秒鐘內(nèi)容許前微解決器控制系統(tǒng)進(jìn)入工作籌劃模式。 Upon entering the PWP mode, the PWP control syste

22、m performs several functions to further ensure the safety of a worker on the personnel work platform.在進(jìn)入工作籌劃模式下，工作籌劃控制系統(tǒng)執(zhí)行幾種功能，以進(jìn)一步保證對(duì)人事工作平臺(tái)工人的安全。 Upon entering the PWP mode, the microprocessor sends a signal to the transmission controller, which causes the transmission of the forklift to declutch,

23、to prevent movement of the forklift.在進(jìn)入工作籌劃模式下，微解決器發(fā)送到傳播控制器，從而導(dǎo)致了叉車傳播離合，以避免叉車的運(yùn)動(dòng)信號(hào)。 At the same time, the processor activates the parking brake and locks the rear axle stabilizing system of the forklift to provide a secure four-point stance.同步，解決器激活停車制動(dòng)和鎖定后軸穩(wěn)定的叉車系統(tǒng)提供一種安全的四點(diǎn)立場(chǎng)。 Once the forklift en

24、ters the PWP mode, the PWP control system checks to determine whether the cab of the forklift is in a generally level orientation.一旦進(jìn)入叉車工作籌劃模式下，工作籌劃控制系統(tǒng)檢查，以擬定與否叉車駕駛室在一般水平方向。 Specifically, a level sensor/switch in the cab provides a signal to the microprocessor indicating the orientation of the cab.具

25、體來(lái)說(shuō)，A級(jí)傳感器/開(kāi)關(guān)在駕駛室微解決器提供了一種批示方向的駕駛室信號(hào)。 If the sensor/switch determines that the cab is tilted one way or the other more than 2°, the microprocessor will disable operation of the forklift boom to prevent movement of the personnel work platform.如果傳感器/開(kāi)關(guān)決定了駕駛室傾斜的一種方式或其她超過(guò)2 °，微解決器將禁用繁華的叉車操作，以避免人員的工作平臺(tái)運(yùn)營(yíng)。

26、 In addition to controlling various operational components of the forklift, the microprocessor causes a restriction in the flow of hydraulic fluid to the leveling cylinder of the forklift upon entering the PWP mode.除了控制各業(yè)務(wù)部門的叉車，微解決器導(dǎo)致在液壓流體流向的模式后，進(jìn)入叉車工作平缸限制。 The flow restriction reduces the rate at

27、which the leveling cylinder operates to prevent a worker on the platform from being thrown from the platform due to a tip-over of the forklift caused by incorrect movement of the leveling cylinder.流量限制減少的速度調(diào)平缸工作，以避免被扔在平臺(tái)上的平臺(tái)工人由于針尖對(duì)由不對(duì)的的平缸運(yùn)動(dòng)所導(dǎo)致的叉車。 The PWP control system of the invention includes t

28、he shut-off switch that is mounted to the personnel work platform.本發(fā)明的控制系統(tǒng)涉及工作籌劃關(guān)閉互換機(jī)，安裝在人事工作平臺(tái)。 If a worker on the personnel work platform desires to prevent any further movement of the boom, the worker can depress the shut-off switch.如果對(duì)人事工作平臺(tái)的欲望工人，以避免任何進(jìn)一步行動(dòng)的熱潮，勞動(dòng)者可以克制關(guān)閉開(kāi)關(guān)。 When the shut-off swit

29、ch is moved to its OFF position, the microprocessor activates a joystick disengage solenoid that prevents any further movement of the boom.當(dāng)關(guān)閉開(kāi)關(guān)移動(dòng)到OFF位置的，微解決器激活一種操縱桿脫離電磁鐵來(lái)避免任何進(jìn)一步的運(yùn)動(dòng)熱潮。 Thus, a worker on the platform can prevent further movement of the platform by an operator in the forklift cab.因此，在

30、平臺(tái)上可以避免工人在叉車駕駛室操作平臺(tái)的進(jìn)一步行動(dòng)。 Various other features, objects and advantages of the invention will be made apparent from the following description taken together with the drawings.其她多種功能，對(duì)象和發(fā)明將作出明顯的優(yōu)勢(shì)，采用了從圖紙一并提供如下闡明。 BRIEF DESCRIPTION OF THE DRAWINGS簡(jiǎn)要闡明圖紙 The drawings illustrate the best mode pr

31、esently contemplated of carrying out the invention.圖紙闡明目前的最佳模式貫徹發(fā)明設(shè)想。 In the drawings:在圖紙： FIG.圖1一 is an isometric view of a boom-type vehicle, in the form of an extendible boom forklift, including a personnel work platform (PWP) incorporating the subject matter of the present invention;是一種繁華型車輛

32、等距視圖在一種伸縮臂叉的形式，涉及人事工作平臺(tái)（工作平臺(tái)）納入本發(fā)明的標(biāo)志物; FIG.圖二2二 is a partial perspective view of the shut-off switch mounted to the personnel work platform;是關(guān)閉安裝在人事工作平臺(tái)切換局部透視圖; FIG.圖3三 is a partial perspective view illustrating the control panel used to operate the boom-type vehicle and engage the modified PWP

33、 control system of the present invention;是局部透視圖闡明了用于操作控制面板的熱潮型車輛和修改后的工務(wù)籌劃進(jìn)行，本發(fā)明控制系統(tǒng); FIG.圖4四 is a schematic illustration of the PWP control system of the present invention; and是對(duì)本發(fā)明的工作籌劃控制系統(tǒng)示意圖 FIG.圖五 is a schematic diagram of the hydraulic circuit illustrating the speed control mechanism used to

34、 limit the frame leveling speed in accordance with the present invention, incorporated into the extendible boom vehicle of FIG.是闡明了速度的液壓控制機(jī)制用于限制在本發(fā)明根據(jù)框架練級(jí)速度，進(jìn)入圖伸縮臂汽車納入電路原理圖。 DETAILED DESCRIPTION OF THE INVENTION發(fā)明的具體闡明 Referring to在談到 FIG.圖。 1一 , a vehicle in the form of an extendible boom forkli

35、ft ，在伸縮臂叉的形式車輛 10 10 generally includes a frame or chassis一般涉及一種框架或機(jī)箱 12 12 and a boom assembly大會(huì)和繁華 14 14 mounted to chassis安裝在機(jī)箱 12 12 . 。 Chassis底盤 12 12 includes a central frame member成員涉及中央幀 15 15 extending in a longitudinal front-rear direction.在縱向延伸的前后方向。 A pair of front ground-engaging wheel

36、s and tires一種前端地面車輪和輪胎對(duì)從事 18 18 are carried by a front axle assembly mounted toward the forward end of central frame member是由前橋總成進(jìn)行安裝朝著前端中央幀成員 15 15 , and a pair of rear ground-engaging wheels and tires ，以及對(duì)后方地面從事車輪和輪胎 20 20 are mounted toward the rearward end of central frame member被安裝朝著中央后方結(jié)束幀成員 1

37、5 15 . A cab一種出租車 22 22 is mounted between front wheels前輪之間安裝 18 18 and rear wheels和后輪 20 20 on one side of central frame member在一成員方的中央框架 15 15 , and a drive train is mounted on the side of central frame member ，和驅(qū)動(dòng)器安裝在列車中部的成員方框架 15 15 opposite cab相反駕駛室 22 22 . A pair of uprights一對(duì)立柱 24 24 are moun

38、ted to central frame member安裝到中央幀成員 15 15 toward its rearward end, rearwardly of cab其后方走向結(jié)束，駕駛室 22 22 and wheels和車輪 20 20 . A pair of lift cylinders對(duì)氣瓶的電梯 26 26 are located one on either side of frame位于任一側(cè)一幀 15 15 , and each lift cylinder ，每個(gè)升降油缸 26 26 is connected to chassis連接到機(jī)箱 12 12 via a pivot

39、connection which pivotably secures the cylinder end of the lift cylinder通過(guò)一種樞軸接頭，固定電梯的缸缸端 26 26 to chassis到機(jī)箱 12 12 for movement about a substantially horizontal pivot axis.約一種大大水平翻轉(zhuǎn)軸運(yùn)動(dòng)。 A pair of slave cylinders對(duì)氣瓶的奴隸 30 30 are also located one on either side of chassis也位于機(jī)箱側(cè)面任一 12 12 , and the cyl

40、inder end of each slave cylinder ，以及每個(gè)分泵缸端 30 30 is connected to chassis連接到機(jī)箱 12 12 via a pivot connection which provides pivoting movement of the slave cylinder通過(guò)一種支點(diǎn)連接，提供旋轉(zhuǎn)運(yùn)動(dòng)的分泵 30 30 about a substantially horizontal pivot axis.約一種大大水平翻轉(zhuǎn)軸Boom assembly臂總成 14 14 generally includes an outer boom memb

41、er一般涉及一種外部的繁華成員 32 32 and an intermediate boom member及一種中間臂成員 34 34 which is received within an internal passage defined by outer boom member這是由外內(nèi)收到繁華成員定義一種內(nèi)部通道 32 32 for telescoping inward and outward movement relative to outer boom member抵港及離港的伸縮運(yùn)動(dòng)外相對(duì)繁華的成員 32 32 . Boom assembly臂總成 14 14 further in

42、cludes an inner boom member還涉及一種內(nèi)部成員熱潮 35 35 received within an internal passage defined by intermediate boom member由中間臂內(nèi)收到成員定義一種內(nèi)部通道 34 34 and is mounted for axial inward and outward telescoping movement relative to intermediate boom member并安裝軸向伸縮運(yùn)動(dòng)抵港及離港相對(duì)繁華的成員中間 34 34 . 。 A nose section一種機(jī)頭部分 36 3

43、6 is mounted to the forward end of the inner boom member是安裝在成員的內(nèi)在動(dòng)臂前端 35 35 , and is located forwardly of the forward end of chassis ，坐落在向前的機(jī)箱前端 12 12 . 。 A drive arrangement provides inward and outward movement of intermediate boom member A驅(qū)動(dòng)器的方式，提供進(jìn)出香港的中間臂運(yùn)動(dòng)成員 34 34 and the inner boom member內(nèi)臂成員 3

44、5 35 to which nose section對(duì)于這些機(jī)頭部分 36 36 is mounted, in a manner as is known.安裝，在眾所周知的方式進(jìn)行。A tool mounting assembly一種工具安裝方式 38 38 is pivotably mounted to the lower end of nose section是安裝在機(jī)頭部分的下端 36 36 , and a tilt cylinder (not shown) is interposed between nose section和一種傾斜缸（未顯示）機(jī)頭部分之間的中間人 36 36 and

45、 tool mounting assembly和工具安裝方式 38 38 . 。 Tool mounting assembly工具安裝方式 38 38 includes an arrangement for releasably engaging a tool with boom assembly涉及用于釋放地從事大會(huì)安排的工具 14 14 through nose section通過(guò)機(jī)頭部分 36 36 . 。 As shown in the drawings, personnel work platform (PWP)在圖紙上所示，人事工作平臺(tái)（工務(wù)） 42 42 is received

46、by a fork assembly是大會(huì)收到的叉子 43 43 mounted to the tool mounting assembly安裝在安裝裝配工具 38 38 . Boom assembly臂總成 14 14 includes a mounting structure涉及安裝構(gòu)造 44 44 toward its rearward end.朝著后方結(jié)束。 Lift cylinder升降油缸 26 26 is engaged with mounting structure從事與安裝構(gòu)造 44 44 via a pivot connection通過(guò)樞軸連接 46 46 , and sl

47、ave cylinder和分泵 30 30 is connected to mounting structure連接到安裝構(gòu)造 44 44 via a pivot connection通過(guò)樞軸連接 48 48 . A pivot shaft一種支點(diǎn)軸 50 50 is operable to pivotably mount boom assembly是可操作工作支撐點(diǎn)14 14 to uprights到立柱 24 24 through mounting structure通過(guò)安裝構(gòu)造 44 44 . Boom assembly臂總成 14 14 is pivotable about a piv

48、ot axis defined by the longitudinal axis of pivot shaft是有關(guān)軸的支點(diǎn)縱軸定義一種支點(diǎn)軸擺動(dòng) 50 50 . With the arrangement as described above, boom assembly有了上述的安排，效率變高 14 14 is operable to lift the personnel work platform是可操作性解除人事工作平臺(tái) 42 42 . Extension of lift cylinders延長(zhǎng)電梯缸 26 26 functions to pivot boom assembly大會(huì)樞紐功

49、能，繁華 14 14 upwardly about pivot shaft有關(guān)軸支點(diǎn)向上 50 50 to lift the personnel work platform解除人事工作平臺(tái) 42 42 and likewise retraction of cylinders同樣地回縮氣瓶 26 26 functions to lower the personnel work platform功能，以減少人事工作平臺(tái) 42 42 by allowing boom assembly大會(huì)通過(guò)容許熱潮 14 14 to pivot downwardly about pivot shaft以樞軸向下約樞

50、紐軸 50 50 . In a manner as is known, the rear axle assembly, to which rear wheels在眾所周知的方式，后橋總成，對(duì)此后輪 20 20 are mounted, is pivotable relative to central frame member在坐騎上，是相對(duì)于中央擺動(dòng)架成員 15 15 to provide oscillating movement of wheels提供車輪擺動(dòng)??運(yùn)動(dòng) 20 20 relative to chassis相對(duì)于底盤 12 12 as forklift作為叉車 10 10 tra

51、vels over uneven terrain.走遍平坦地形。 A stabilizing cylinder assembly一種穩(wěn)定汽缸組件 52 52 is interposed between central frame member畫面中央是成員之間的中間人 15 15 and the rear axle assembly, to cushion shocks which would otherwise be experienced by central frame member和后橋總成，以緩沖，否則會(huì)成員由中央幀經(jīng)歷震蕩 15 15 and the components moun

52、ted thereto, such as cab和組件及其安裝，如駕駛室 22 22 and boom assembly和動(dòng)臂總成 14 14 , during such oscillating movement of wheels ，在這樣的振蕩運(yùn)動(dòng)的車輪 20 20 relative to central frame member相對(duì)于中央幀成員 15 15 . 。 In在 FIG.圖。 1一 , stabilizing cylinder ，穩(wěn)定缸 52 52 is shown as being located at the left side of forklift體現(xiàn)為在叉車被左側(cè) 1

53、0 10 . In a similar manner, the front axle assembly, to which front wheels以類似的方式，前橋總成，對(duì)此前輪 18 18 are mounted, is pivotable relative to central frame member在坐騎上，是相對(duì)于中央擺動(dòng)架成員 15 15 to provide oscillating movement of wheels提供車輪擺動(dòng)??運(yùn)動(dòng) 18 18 as forklift作為叉車 10 10 travels over uneven terrain.走遍平坦地形。 A fram

54、e leveling cylinder (not shown in一幀平缸（不顯示在 FIG.圖。 1一 ) is located at the right side of forklift ）位于右側(cè)的叉車 10 10 and is interconnected between central frame member并且是互相連接中環(huán)至幀成員 15 15 and the front axle assembly.和前橋總成。 In a manner as is known, the frame leveling cylinder is utilized to level chassis在眾所

55、周知的方式，幀平缸是運(yùn)用水平底盤 12 12 relative to wheels相對(duì)于車輪 18 18 and和 20 20 when forklift當(dāng)叉車 10 10 is parked on uneven terrain and boom assembly停在不平的地形和繁華大會(huì) 14 14 is to be raised and extended to place a load carried by fork assembly要提高并擴(kuò)大到地方議會(huì)通過(guò)叉進(jìn)行負(fù)載 43 43 onto an elevated surface.表面上高架。 In accordance with a co

56、nventional operation, stabilizing cylinder與老式手術(shù)的規(guī)定，穩(wěn)定缸 52 52 is automatically locked in position upon actuation of the frame leveling cylinder to fix the position of rear wheels自動(dòng)鎖定在平整后的框架的位置固定氣缸驅(qū)動(dòng)的后輪位置 20 20 relative to central frame member相對(duì)于中央幀成員 15 15 , and operation of the leveling cylinder, lo

57、cated between the front axle assembly and central frame member ，和運(yùn)作水準(zhǔn)缸之間，前橋總成和位于中央幀成員 15 15 , is operable to move chassis ，是可操作的移動(dòng)底盤 12 12 to a level position.到水平位置。 Extendible boom forklift伸縮臂叉車 10 10 and fork assembly刀叉大會(huì) 43 43 are of conventional construction.是老式的建設(shè)。 Representatively, extendible

58、boom forklift代表性，伸縮臂叉 10 10 may be that such as is available from Gehl Company of West Bend, Wisconsin under its designation DYNALIFT?, and fork assembly也許是從格爾，如西彎，威斯康辛公司索取根據(jù)其指定DYNALIFT ?和叉大會(huì) 43 43 may be a fork attachment as is also available from Gehl Company of West Bend, Wisconsin and adapted fo

59、r use in combination with its DYNALIFT series of extendible boom material handlers.也許是一種叉附件作為，也可以從格爾西彎，在威斯康星州的公司及合并使用其伸縮臂材料解決DYNALIFT一系列調(diào)節(jié)。 As shown in所示 FIG.圖。 1一 , the personnel work platform assembly的人員，大會(huì)工作平臺(tái) 42 42 is adapted for use in combination with extendible boom forklift是改編結(jié)合伸縮臂叉用 10 10 .

60、 。 In accordance with known construction, the personnel work platform在與出名建筑的規(guī)定，人事工作平臺(tái) 42 42 includes a floor涉及地板 54 54 and a series of vertical railing sections和一系列的垂直扶手部分 56 56 . 。 Personnel work platform人事工作平臺(tái) 42 42 further includes a pair of tubular fork receivers還涉及一對(duì)管狀叉接受機(jī) 58 58 secured to the

61、frame of personnel work platform固定在工作平臺(tái)框架的人員 42 42 below floor樓下 54 54 . 。 Each fork receiver每個(gè)叉接受機(jī) 58 58 defines an internal passage adapted to receive one of the forks定義了一種內(nèi)部??通道適應(yīng)收到叉一 59 59 of the fork attachment貨叉附件 43 43 , such that personnel work platform ，這樣，人事工作平臺(tái) 42 42 can be carried by the

62、 end of extendible boom可進(jìn)行由伸縮臂結(jié)束 14 14 in order to elevate personnel for various tasks.以提高人員的各項(xiàng)任務(wù)。 Personnel work platform人事工作平臺(tái) 42 42 is again of conventional construction, and may be that such as is available from Star Industries of Fort Worth, Tex.再次是老式建筑，并也許被諸如可從明星沃斯堡，得克薩斯州工業(yè) Referring now to談到目

63、前 FIG.圖。 2 2 , a personnel work platform (PWP) control system shut-off switch module ，一種人事工作平臺(tái)（工務(wù)）控制系統(tǒng)關(guān)閉互換機(jī)模塊 60 60 is adapted for mounting to an upper cross-member是適應(yīng)用于安裝到上橫梁 63 63 of the fork assembly.貨叉大會(huì)。 A cable一種電纜 61 61 extends from the PWP control system shut-off switch module延伸，從工務(wù)籌劃控制系統(tǒng)關(guān)閉互

64、換機(jī)模塊 60 60 and includes a connector涉及連接器 62 62 at its end, which is engageable with a connector of the forklift.在其結(jié)束，這是一種連接engageable的叉車。 In this manner, the PWP control system shut-off switch module在這種方式下，工務(wù)籌劃控制系統(tǒng)關(guān)閉互換機(jī)模塊 60 60 is selectively interconnected in the electrical system of the extendible

65、 boom forklift有選擇地在互聯(lián)伸縮臂叉車電氣系統(tǒng) 10 10 . 。 A releasable engagement arrangement is interposed between PWP control system shut-off switch module釋放參與工務(wù)工程籌劃安排是控制系統(tǒng)之間的中間人關(guān)閉互換機(jī)模塊 60 60 and cross-member和橫梁 63 63 of the fork assembly.貨叉。 Representatively, the releasable engagement arrangement may be in the fo

66、rm of mating hook-and-loop strips or the like secured to the underside of the module代表性，參與安排的釋放也許會(huì)在交配鉤環(huán)帶或類似的形式固定在模塊的底部 60 60 and to the upwardly facing surface of cross-member并在向上面臨橫梁表面 63 63 . 。 Any other type of releasable engagement arrangement may be utilized, such as a snap-type engagement fitting, a slide-on fitting with a detent arrangement, or any other construction which provides removable mounting of PWP control system shut-off switch module參與安排的任何其她類型的釋放可以運(yùn)用，如單元式接觸件，幻燈片上有制動(dòng)安排，或任何其她建筑工