505611 A7 B7 五、發明說明（1 ) 〔產業上之利用領域〕 本發明係關於採用油壓驅動系統之引擎式堆高機者。 (請先閱讀背面之注意事項再填寫本頁) 〔先行技術〕 已往’做爲一般的引擎式堆高機所屬動力傳達裝置者 ’以離合器式和扭矩變速器爲主流，惟其他亦有採用油壓 驅動系統之引擎式堆高機存在。該採用油壓驅動系統之引 擎式堆高機係爲單一泵單一馬達形式和單一泵2馬達形式 ，其特徵爲高效率化，不需前方差速傳動裝置等，而其迴 旋系統大部分爲後輪轉向者。 經濟部智慧財產局員工消費合作社印製 更且已往一般的堆高機，其重心位置較乘坐用車爲高 ，又因具有托架之故，迴旋時候之穩定性不良，若以高速 做急迴旋時即有側傾而倒之慮，其對策之一例，有對應速 度來控制托架量之措施。又，迴旋時之橫倒事故，於行駛 速度愈快，和急迴旋時愈容易發生，故以減慢迴旋時之行 駛速度可予防止，但這時候，尙關連到駕駛員（操作員） 之意志（即加速踩板之踩動量），而容易產生操作失誤。 於是，做爲自動地控制行駛速度之系統，曾有提供將方向 盤之轉向角回饋，並使用電子調速器來改變引擎轉數的方 式者。 〔發明所欲解決之課題〕 然而，按照前述之已往構成時，由於對做爲驅動輪之 左右側前輪使用共同之泵故，其機動性不良，且迴旋半徑 -4 - 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 505611 A7 —_ B7 五、發明說明（2 ) 亦大◦另將迴旋時之行駛速度，靠改變引擎之轉數來控制 之方式’不但其構造變複雜，而且無法隨意設定行駛速度 〇 (請先閱讀背面之注意事項再填寫本頁) 進而’其制動系統係與通常的堆高機一樣地採用裝設 制動鼓輪於前輪轂構成之型式，故在製作成本和配置空間 方面存有問題點。又對直接安裝油壓馬達於前輪之型式裡 無法利用到前述之制動系統。 〔用以解決課題之手段〕 爲解決前述已往技術所具之問題點，本發明以提供藉 採用2泵2馬達形式，除能提高機動性外尙能縮小迴旋半 徑之油壓驅動式堆高機爲第1個目的。 再以提供可將油壓驅動系統所持之油壓制動器用於常 用制動器的油壓驅動式堆高機爲第2個目的。 爲欲達成前述之第1個目的，本發明之油壓驅動式堆 高機，係於車體設置左右一對前輪與左右一對後輪，同時 在車體前端側復設置豎桿與叉架所構成之油壓驅動式堆高 機中，其特徵爲： 經濟部智慧財產局員工消費合作社印製 各前輪直接連結於分別安裝在油壓馬達側之驅動軸並 與之連動，而於車體側除設置經由引擎所驅動之多數油壓 泵外，尙於一個油壓馬達上連接相對應之一個油壓泵，而 各後輪依照可對車體側縱軸心周圍做自由迴旋之方式設置 〇 按照前述本發明之構成，於前後進行駛中車速之控制 -5- 本紙張尺度適用中國國家標準（CNS)A4規格mo X 297公釐） 505611 A7 B7 五、發明說明（3 ) ，可藉變速桿轉換兩油壓泵之油的流通方向，改變各油壓 (請先閱讀背面之注意事項再填寫本頁) 馬達之旋轉方向的同時’復藉加速踏板控制引擎之旋轉數 ，及油壓栗之油流量，用以改變油壓馬達之旋轉數予以施 行。而迴旋之控制，則根據方向盤之轉向角和後輪轉向角 (迴旋角），對左右之前輪施行各旋轉數之控制（同數和 差）和各旋轉方向之控制（同方向和相反方向）得以成爲 可能。 又，就堆高機之驅動形式而言，由於採用2泵2馬達 型式之油壓驅動系統（H S T系統），復對做爲驅動輪之 左右前輪予以個別控制之措施，而能夠提高機動性，縮小 迴旋半徑者。而經藉將各前輪直接裝設在分別安裝於車體 之油壓馬達側的措施，除能簡化動力傳達部之外，尙能擴 充配置上之自由度。進而再除油壓驅動系統之特性的高效 率化，不需前方差速傳動之外尙可望引擎最適控制帶來之 低燃費利多也。 如本發明中適宜之實施形態，其中對迴旋時之行駛速 度的變更，係按照方向盤之轉向角度控制油壓馬達之旋轉 數而進行者。 經濟部智慧財產局員工消費合作社印製 按照前述適宜之實施形態時，迴旋時之行駛速度，於 不改變引擎之旋轉數爲前提下，可因應方向盤之轉向角控 制油壓馬達之旋轉數自動地改變，故除能將構造予以簡化 外，尙可將迴旋時之行駛速度與加速踏板不相干地隨意予 以設定之。 如本發明中適宜之實施形態，其中迴旋時之行駿速度 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -6 - 505611 A7 ___B7___ 五、發明說明（4 ) 的變更，係按照後輪之轉向角控制油壓馬達之旋轉數所進 行者。 (請先閱讀背面之注意事項再填寫本頁) 按照前述適宜之實施形態時，迴轉時之行駛速度，於 不改變引擎之旋轉數爲前提下，可因應後輪之轉向角控制 油壓馬達之旋轉數自動地改變，故除能簡化其構造外，尙 可將迴轉時之行駛速度與加速踏板不相干地隨意予以設定 之。 爲達成前述之第2目的，於依照本發明所屬另外之實 施形態中，其特徵爲： 油壓泵係具藉來自控制器之行駛指令訊號控制斜盤角 之電控器方式構成，並以輸入來自測出制動器踏板之踏進 量用感測手段的測出訊號於該控制器之舉，從該控制器對 油壓泵輸出行駛指令訊號者。 經濟部智慧財產局員工消費合作社印製 依照該另外之實施形態時，經由踏下制動器踏板之舉 ，藉檢測手段測出踏進量而將測出訊號輸入控制器，然後 按照測出訊號從控制器對油壓泵輸出行駿指令訊號，因而 可以控制油壓泵之斜盤角。換言之，按照制動器踏板之踏 進量，控制將油壓泵之斜盤角返回於0 °之速度而進行制 動操作。屆時，設定成在制動器踏板之行程末端稍前處使 讓油壓泵之斜盤角爲0 °之形式，而至行程末端連油壓馬 達內藏之停車制動器亦可予致動者。 因此，能夠將油壓驅動系統原帶之油壓制動器有效使 用爲常用制動器，除在製造成本和空間配置上做成更適合 者外，尙有可能做成直接安裝油壓馬達於前輪之形式。更 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 505611 A7 B7___ 五、發明說明（5 ) 與通常之扭矩轉換器式堆高機同樣地進行經由制動器踏板 達成之寸動操作。 (請先閱讀背面之注意事項再填寫本頁) 〔實施例〕 茲按照所附第1〜4圖就本發明之第1種實施例說明 如下。 堆高機1，乃於其車體2之前部設置左右一對前輪（ 驅動輪）3 A，3 B之同時，復於後部尙設置左右一對之 後輪（轉向輪）4 A，4 B。且於車體2之前部，在上方 構設駕駛座5。前述車體2之前端部有朝上下方向伸縮自 如的豎桿6 ，以使朝車寬方向之連接軸7介於中間並可朝 前後方向擺動自如的方式安裝之同時，尙有使其做前後方 向之擺動的傾轉用汽缸8設置在車體2與豎桿6之間。 經濟部智慧財產局員工消費合作社印製 前述豎桿6，係由車體2側之左右一對外框架9和被 該外框架9所引導而昇降自如之左右一對內框架1 0所組 成，而於外框架9和內框架1 0之間設置昇降汽缸1 1。 另，設置藉內框架1 〇側引導而自由昇降之昇降托架1 2 外，尙在該昇降托架1 2處以上下一對指形桿爲媒介設置 左右一對叉桿1 3。 於前述駕駛座5，配設有座位1 5，和位於該座位 1 5前方之方向盤1 6等。而於駕駛座5之上方，通過自 本體2側立設之前方管1 7和後方管1 8配設護頂罩1 9 。更於座位1 5之後方的本體2上設置平衡配重2 0。 左右一對前輪3 A，3 B，其胎環3 a經由連結具 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -8 - 505611 A7 B7 五、發明說明（6 ) (請先閱讀背面之注音？事項再填寫本頁) 2 3A，2 3B分別直接安裝於油壓馬達2 1A，2 1B 所屬旋轉凸緣（驅動軸之一例）2 2 A，2 2 B上，藉此 完成與油壓馬達2 1 A，2 1 B側之連結連動。而油壓馬 達2 1 A，2 1 B之裝配，係固定於車體2側，即前車架 之上。 前述車體2側設置引擎2 5，而在該引擎2 5直接安 裝著一對（多數）油壓泵（H S T串列聯式泵）2 6 A， 2 6 B。其安裝方法，乃以引擎2 5和車架予以橡皮緩衝 式裝配者。而且，使其以一個油壓馬達2 1 A，2 1 B對 應一個油壓泵2 6 A，2 6 B之型態，即，爲使其成爲2 泵2馬達型之油壓泵系統（H S T系統），將相對應之油 壓泵26Α，26Β與油壓馬達21Α，21Β以配管（ 如油壓軟管等）2 7 A，2 7 Β介於中間連接之。 左右一對後輪4 A，4 B，乃分別對車體2之縱軸心 29A，29B周圍自由迴旋之方式設置。30表示電氣 式之變速操作桿，3 1爲控制器，3 2爲電氣式之加速踏 板，3 3爲電氣式之制動器踏板。 經濟部智慧財產局員工消費合作社印製505611 A7 B7 V. Description of the invention (1) [Application field in industry] The present invention relates to an engine-type stacker using a hydraulic drive system. (Please read the precautions on the back before filling in this page.) [Advanced technology] In the past, 'as a power transmission device belonging to a general engine stacker', the clutch and torque transmission are the mainstream, but others also use oil pressure An engine stacker for the drive system exists. The engine stacker with hydraulic drive system is a single-pump single-motor form and a single-pump 2-motor form. It is characterized by high efficiency and does not require a front differential transmission. The majority of its swing system is the rear Wheel steer. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has printed a more conventional stacker. Its center of gravity is higher than that of a passenger car, and because of the bracket, the stability during turning is not good. From time to time, there is a concern of rolling and falling. As an example of the countermeasure, there is a measure to control the amount of the carriage according to the speed. In addition, the rolling accident at the time of turning is more likely to occur at the faster driving speed and during the rapid turning, so it can be prevented by slowing the driving speed at the time of turning, but at this time, it is related to the driver (operator). Will (that is, to accelerate the pedaling momentum of the pedal), and it is easy to cause operation errors. Therefore, as a system for automatically controlling the driving speed, there have been methods that provide feedback of the steering angle of the steering wheel and use an electronic governor to change the number of engine revolutions. [Problems to be Solved by the Invention] However, according to the above-mentioned conventional structure, since the common pumps are used for the left and right front wheels as the driving wheels, the maneuverability is poor, and the turning radius is -4-This paper size is applicable to China Standard (CNS) A4 specification (210 X 297 mm) 505611 A7 —_ B7 V. Description of the invention (2) is also large ◦ In addition, the driving speed during turning is controlled by changing the number of engine revolutions' not only its structure It becomes complicated and the driving speed cannot be set arbitrarily (please read the precautions on the back before filling in this page), and further 'the braking system is the same as that of a conventional stacker with a brake drum on the front hub, Therefore, there are problems in terms of production cost and configuration space. In the case of directly mounting the hydraulic motor on the front wheels, the aforementioned braking system cannot be used. [Means to solve the problem] In order to solve the problems of the previous technology, the present invention provides a hydraulically driven stacker that can reduce the radius of gyration by using two pumps and two motors in addition to improving mobility. For the first purpose. The second purpose is to provide a hydraulically driven stacker that can use the hydraulic brakes held by the hydraulic drive system for common brakes. In order to achieve the aforementioned first object, the hydraulically driven stacker of the present invention is provided with a pair of left and right front wheels and a pair of left and right rear wheels on the vehicle body, and a vertical rod and a fork frame are additionally provided on the front side of the vehicle body. The hydraulic drive stacker consists of the following features: printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, each front wheel is directly connected to and connected to a drive shaft installed on the hydraulic motor side, and is connected to the vehicle body. In addition to the majority of hydraulic pumps driven by the engine, a hydraulic pump is connected to a hydraulic motor, and each rear wheel is set in a manner that allows free rotation around the longitudinal axis of the vehicle body side. 〇 According to the above-mentioned composition of the present invention, the speed control during forward and backward travel -5- This paper size applies the Chinese National Standard (CNS) A4 specification mo X 297 mm) 505611 A7 B7 V. Description of the invention (3), which can be borrowed The shift lever changes the direction of oil flow between the two hydraulic pumps and changes the oil pressure (please read the precautions on the back before filling this page). At the same time as the rotation direction of the motor, 're borrow the accelerator pedal to control the number of engine rotations and the oil pressure. Oil flow for changing the number of rotations of the hydraulic motor to be applied to the row. The control of turning is based on the steering angle of the steering wheel and the steering angle of the rear wheels (turning angle), the control of the number of rotations (same number and difference) and the direction of rotation (same direction and opposite direction) on the left and right front wheels. Made it possible. In addition, as for the driving mode of the stacker, since the hydraulic drive system (HST system) of 2 pumps and 2 motors is adopted, the measures of individually controlling the left and right front wheels as the driving wheels can be improved, and the mobility can be improved. Reduce the radius of gyration. By directly installing each front wheel on the side of the hydraulic motor installed on the vehicle body, in addition to simplifying the power transmission section, it is possible to expand the degree of freedom in configuration. Furthermore, in addition to the high efficiency of the characteristics of the hydraulic drive system, the front differential transmission is not required, and it is expected that the optimal control of the engine will bring low fuel consumption and more profits. According to a preferred embodiment of the present invention, the change in the running speed during turning is performed by controlling the number of rotations of the hydraulic motor in accordance with the steering angle of the steering wheel. When printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in accordance with the foregoing suitable implementation form, the driving speed at the time of rotation can be controlled automatically based on the steering angle of the steering wheel without changing the number of engine rotations. Change, so in addition to simplifying the structure, you can arbitrarily set the driving speed at the time of turning irrelevant to the accelerator pedal. As a suitable implementation form of the present invention, the travel speed at the time of convolution is in accordance with the Chinese national standard (CNS) A4 specification (210 X 297 mm) -6-505611 A7 ___B7___ 5. Changes to the description of the invention (4) , Is based on the steering angle of the rear wheel to control the number of rotation of the hydraulic motor. (Please read the precautions on the back before filling in this page.) According to the above-mentioned suitable implementation mode, the driving speed during turning can be controlled based on the steering angle of the rear wheels without changing the number of engine rotations. The number of rotations is automatically changed, so in addition to simplifying its structure, the driving speed during turning can be set arbitrarily regardless of the acceleration pedal. In order to achieve the above-mentioned second object, in another embodiment according to the present invention, it is characterized in that: the hydraulic pump is constituted by an electric controller that controls the swash plate angle by a driving instruction signal from the controller, and is input by The controller measures the signal from the brake pedal to measure the amount of depression of the brake pedal, and outputs the driving command signal to the hydraulic pump from the controller. When printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in accordance with this other implementation form, by pressing the brake pedal, measuring the amount of pedaling through the detection means, the measured signal is input to the controller, and then the control is performed according to the measured signal. The controller outputs the command signal to the hydraulic pump, so it can control the swash plate angle of the hydraulic pump. In other words, in accordance with the amount of depression of the brake pedal, the brake is controlled by returning the swash plate angle of the hydraulic pump to a speed of 0 °. At that time, it is set to make the swashplate angle of the hydraulic pump 0 ° slightly before the stroke end of the brake pedal, and the parking brake built into the hydraulic motor can also be actuated at the end of the stroke. Therefore, the hydraulic brakes originally provided by the hydraulic drive system can be effectively used as common brakes. In addition to being more suitable in terms of manufacturing cost and space configuration, it may not be possible to install the hydraulic motor directly on the front wheels. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 505611 A7 B7___ V. Description of the invention (5) Same as the usual torque converter stacker, the jog achieved through the brake pedal operating. (Please read the precautions on the back before filling out this page) [Embodiment] The first embodiment of the present invention will be described in accordance with the attached drawings 1 to 4 as follows. The stacker 1 is provided with a pair of left and right front wheels (driving wheels) 3 A, 3 B at the front of the body 2 and a pair of left and right rear wheels (steering wheels) 4 A, 4 B at the rear. A driver seat 5 is arranged above the front portion of the vehicle body 2. The front end of the aforementioned vehicle body 2 is provided with a vertical rod 6 that can be flexibly extended in the up-down direction, so that the connecting shaft 7 in the vehicle width direction is interposed and can swing freely in the forward-backward direction. The tilting cylinder 8 is provided between the vehicle body 2 and the vertical rod 6. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed the aforementioned vertical rod 6, which is composed of a left and right outer frame 9 on the side of the vehicle body 2 and a pair of inner frames 10 that are guided by the outer frame 9 and can be raised and lowered freely. A lifting cylinder 11 is provided between the outer frame 9 and the inner frame 10. In addition, an elevating bracket 12 is provided which can be raised and lowered freely by being guided by the inner frame 10 side, and a pair of left and right fork rods 13 are provided on the elevating bracket 12 above and below a pair of finger bars. The aforementioned driver's seat 5 is provided with a seat 15 and a steering wheel 16 located in front of the seat 15. Above the driver's seat 5, a front cover 17 and a rear tube 18 are provided from the side of the main body 2 to provide a roof cover 19. A counterweight 20 is provided on the body 2 behind the seat 15. A pair of left and right front wheels 3 A, 3 B, the tire ring 3 a of which is attached to the paper, the size of the paper is applicable to China National Standard (CNS) A4 (210 X 297 mm) -8-505611 A7 B7 V. Description of the invention (6) (Please read the phonetic on the back? Matters before filling out this page) 2 3A, 2 3B are directly installed on the rotary flange (an example of the drive shaft) 2 2 A, 2 2 B of the hydraulic motor 2 This completes the linkage with the hydraulic motors 2 1 A and 2 1 B. The assembly of hydraulic motors 2 1 A and 2 1 B is fixed on the side of the car body 2, namely on the front frame. The engine 2 5 is provided on the body 2 side, and a pair of (most) hydraulic pumps (HST tandem pumps) 2 6 A, 2 6 B are directly installed on the engine 2 5. The installation method is a rubber buffer type assembler with the engine 25 and the frame. In addition, the hydraulic pumps 2 1 A and 2 1 B correspond to the hydraulic pumps 2 6 A and 2 6 B. That is, in order to make them a 2 pump 2 motor type hydraulic pump system (HST System), the corresponding hydraulic pumps 26A, 26B and the hydraulic motors 21A, 21B are connected with pipes (such as hydraulic hoses) 2 7 A, 2 7 Β in the middle. A pair of left and right rear wheels 4 A and 4 B are provided to freely rotate around the longitudinal axis 29A and 29B of the vehicle body 2 respectively. 30 indicates an electric shift lever, 31 is a controller, 3 2 is an electric accelerator pedal, and 3 3 is an electric brake pedal. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs
繼而，就前述第一種實施例之作用予以說明如下。 所附第1 ，2圖，以及第4 (A)圖表示通常之前後 進行駛情形。此時左右之前輪3 A，3 B連同左右之後輪 4 A，4 B皆朝前後方向。且其前後進行駛係藉變速操作 桿3 0施行，並以輸入前後退訊號5 1於控制器3 1 ，通 過該控制器3 1之行駛指令5 2，5 3轉換油壓泵2 6 A ，2 6 B之油流方向，藉以改變油壓馬達2 1 A，2 1 B -9 - 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 505611 A7 _ B7 五、發明說明（7 ) 之旋轉方向。 更以藉加速踏板3 2將車速指令訊號5 4輸入控制器 (請先閱讀背面之注意事項再填寫本頁) 3 1之舉，控制引擎2 5之旋轉數5 5，及自油壓荥 2 6 A，2 6 B流出之油壓（油之流量）5 6 ，5 7之流 量，俾改變油壓馬達2 1 A，2 1 B之旋轉數5 8，5 9 進行速度之控制。尙於欲停車等時，可藉制動器踏板3 3 將制動訊號6 0輸入控制器3 1而達成之。 迴旋時之控制，乃由乘坐於駕駛座5之座席1 5上之 駕駛員藉著操作方向盤1 6等而爲，屆時行駛速度之改變 ，係按照方向盤1 6之轉向角（旋轉角）的位置訊號6 1 ，控制油壓泵2 6 A，2 6 B之斜盤，進而控制油壓馬達 2 1A，2 1B之旋轉數58，59和旋轉方向達成之。 於是，如下所述，得將對應於方向盤1 6之轉向角， 控制兩油壓馬達2 1 A，2 1 B之旋轉數5 8，5 9和旋 轉方向等施行。Next, the effects of the aforementioned first embodiment will be described below. The attached figures 1, 2 and 4 (A) show the normal forward and backward driving situation. At this time, the left and right front wheels 3 A, 3 B together with the left and right rear wheels 4 A, 4 B are facing forward and backward. And the forward and backward driving is implemented by the shift lever 30, and the forward and backward signal 5 1 is input to the controller 3 1, and the hydraulic pump 2 6 A is converted by the driving instruction 5 2, 5 3 of the controller 3 1, 2 6 B oil flow direction to change the hydraulic motor 2 1 A, 2 1 B -9-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 505611 A7 _ B7 V. Description of the invention (7) the direction of rotation. In addition, the accelerator pedal 3 2 is used to input the speed command signal 5 4 into the controller (please read the precautions on the back before filling out this page). The action of 1 is to control the number of rotations of the engine 2 5 5 5 and the oil pressure 油 2 6 A, 2 6 B Outflow hydraulic pressure (oil flow) 5 6, 5 7 flow rate, change the number of rotation of oil motor 2 1 A, 2 1 B 5 8, 5 9 Speed control.停车 When you want to stop, etc., you can use the brake pedal 3 3 to input the brake signal 60 to the controller 3 1 to achieve it. The control during turning is performed by the driver seated on seat 15 of driver's seat 5 by operating steering wheel 16 etc. The change in driving speed at that time is based on the steering angle (rotation angle) of steering wheel 16 Signal 6 1 is achieved by controlling the swashplates of the hydraulic pumps 2 6 A and 2 6 B, and then controlling the rotation numbers of the hydraulic motors 2 1A and 2 1B at 58, 59 and the direction of rotation. Then, as described below, it is necessary to control the number of rotations of the two hydraulic motors 2 1 A, 2 1 B and the rotation direction according to the steering angle of the steering wheel 16 and the rotation direction.
a ··方向盤1 6位於中立處的時候......如於第4 ( A )圖表示，其左右之油壓馬達2 1A，2 1 B之旋轉數 5 8，5 9爲相同者，故做直進動作。 經濟部智慧財產局員工消費合作社印製 b ··方向盤之轉向角（位置訊號6 1 )小時......如第 4 ( B )圖表示，於左右同方向之旋轉中讓左右之旋轉數 58，59間存有差異（譬如，58>59) ° c ··方向盤之轉向角（位置訊號6 1 )位於中間處時 ……如第4圖（C )表示，僅讓一邊之前輪旋轉（譬如’ 僅旋轉左側之前輪3 A )。 -10- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 505611 A7 -----B7 五、發明說明（8 ) d :方向盤之轉向角（位置訊號6 1 )較位於中間處 爲大的時候......如第4 ( D )圖表示，於左右反方向之旋 轉中，讓左右之旋轉數5 8，5 9間存有差異（譬如， 5 8 > 5 9 )。 e :方向盤之轉向角（位置訊號6 1 )位至最大（方 向盤閉鎖）的時候......如第4 ( E )圖表示，於左右反方 向之旋轉，使左右之旋轉數5 8，5 9相同。在此時，得 使迴旋半徑極小化。 於前述內容中，第4 (B)〜（E)圖係舉右迴旋之 情形表示者，惟將方向盤1 6之轉向朝相反方向之舉，亦 可同樣地進行左迴旋。又所示者雖爲前進時，惟後進之情 形亦可同樣地達成。而且於左右迴旋之際，屬迴旋腳輪型 之左右後輪4A，4 B即能追從轉向也。又，方向盤1 6 之轉向角和左右油壓馬達2 1 A，2 1 B之旋轉數5 8， 5 9間的關係，則可藉控制器3 1之設定隨意地加以改變 0 更當於方向盤1 6之轉向角爲一定（譬如僅藉單邊輪 旋轉之樞軸旋轉）以上之急迴旋時’則與加速踏板3 2不 相干地將油壓馬達2 1 A，2 1 B之旋轉數5 8，5 9的 上限予以自動地控制。即，尙未達到急迴旋時所預設之油 壓馬達2 1A，2 1B之旋轉數58 ’ 59前’可藉加速 踏板3 2予以控制，惟設法使其不超過設定値。就其方法 而言，有： 單一速固定馬達之情形時：藉控制器3 1輸入方向盤 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公t ) . — Jim — — — — I ills — ^--------- (請先閱讀背面之注咅？事項再填寫本頁) 505611 A7 五、發明說明（9 ; 1 6之轉向角，油壓馬達2 1A，2 1 B之旋轉數58， 5 9 ’用以控制油壓馬達2 1A，2 1 B之斜盤。 雙速容量轉換馬達之情形時：當方向盤1 6之轉向角 達一定以上時’對油壓馬達2 1 A，2 1 B之容量轉換加 以控制，並使其僅以單一速旋轉，以限制旋轉數5 8， 等方法。 如前所述就堆高機1之驅動形式言，由於採用雙泵雙 馬達型之油壓驅動系統（H S T系統）之故，能靠前輪 3Α，3Β進行迴旋，而不必藉後輪4Α，4Β轉向之。 但是，若爲固定軸式著時，於迴旋時將會產生輪胎之滑移 ，惟在這時候’由於採用迴旋腳輪型者而得以追從由前輪 3Α，3Β主導之前後進、迴旋。 又，採用2泵2馬達型之油壓驅動系統（H S Τ系統 )做爲堆高機1之驅動形式，並以個別控制做爲驅動輪之 左右前輪3 A，3 Β之舉，可提高機動性，且迴旋半徑亦 能縮小。而且將各前輪3 A，3 B藉著直接配裝於分別安 裝在車體2之油壓馬達2 1 A，2 1 B側，除能簡化動力 傳達部外，尙可擴大配置上之自由度。更且除油壓驅動系 統特性之高效率化，不需前方差速傳動之外’尙可望引擎 最適控制帶來之低燃費利多。 如此種形式之堆高機1，乃由坐在駕駛座5之座席 1 5上之駕駛員，譬如，操作昇降用操作桿致動昇降汽缸 1 1之舉，經由昇降托架1 2等’使叉桿1 3沿豎桿6做 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） _ 12 - (請先閱讀背面之注意事項再填寫本頁) 裝 丨_丨丨訂---------. 經濟部智慧財產局員工消費合作社印製 505611 A7 ________________________ B7 五、發明說明（1Q) 昇降動作，得以進行所期之堆高作業。又，藉著操作傾轉 用操作桿致動傾轉用汽缸8，使豎桿6圍繞連結軸7四周 擺動（傾轉），俾能經過昇降托架1 2等得以改變叉桿 (請先閱讀背面之注意事項再填寫本頁) 1 3之姿勢。 繼而，將本發明所屬第2種實施例參照所附第5、6 圖說明之如次。 於本之第2種實施例中之整體構成等係與前述第1種 實施例（第1 ，2圖，第4圖）者相同。在本第2實施例 裡，將迴轉感測器3 4安裝在電氣式制動器踏板3 3之旋 轉中心處者。而油壓泵2 6 A，2 6 B係屬接收來自控制 器3 1之行駛指令訊號5 2，5 3再控制斜盤角之電控式 構成。 前述迴轉感測器3 4，係屬測出制動器踏板3 3之踏 進量的測出手段之一例，就該測出手段而言亦可採用行程 感測器等。而且，具有將來自迴轉感測器3 4之制動訊號 (測出訊號）6 2輸入控制器3 1之舉，即從該控制器 3 1向油壓泵2 6 A，2 6 B輸出行駛指令訊號5 2， 5 3之構成。 經濟部智慧財產局員工消費合作社印製 於此第2種實施例中，若欲停車等時，即可藉將對應 於制動器踏板3 3之踏進量（踩下値）之制動訊號6 2輸 出控制器3 1而達成。 意即油壓驅動系統之油壓制動，係於油壓泵之斜盤角 成0 °時即產生制動作用。於是使用電氣式控制之油壓泵 2 6 A，2 6 B，使其與制動器踏板3 3做電氣式連動， -13- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 505611 A7 _____ B7 五、發明說明（11) 當踏下該制動器踏板3 3時控制油壓泵2 6 A，2 6 B之 斜盤角成爲0 ° 。但是，若踩下制動器踏板3 3後即刻使 油壓泵2 6 A，2 6 B之斜盤角成〇。，則構成緊急制動 而與通常之堆高機大異其感覺。 ‘ 因此，爲能提供與通常之堆高機相同的感覺，須藉次 述之系統進行控制。即，藉踏進制動器踏板3 3之舉，由 旋轉感測器3 4測出踏進量，俾將制動訊號6 2輸入控帋[| 器3 1。因應該制動訊號6 2，自控制器3 1向兩油壓泵 2 6 A，2 6 B分別輸出行駛指令訊號5 2，5 3，用以 控制油壓泵2 6 A，2 6 B之斜盤角。即，因應制動器踏 板3 3之踏進量，控制使斜盤角返回〇 °之速度而進行制 動操作。 彼時，設定於在制動器踏板3 3之行程末端稍前處始 讓油壓泵2 6 A，2 6 B之斜盤角成〇 ° ，並於行程末端 連帶地致動內藏於油壓馬達2 1 A，2 1 B中之停車制動 器。而且藉汽車型油壓驅動系統，設定爲隨踏動加速踏板 3 2可改變油壓泵2 6 A，2 6 B之斜盤角，但一旦放開 加速踏板3 2上之腳時，斜盤角即會緩慢地返回到0 ° 。 另，制動回路係被視爲最優先者。 如前所述，於油壓驅動式之堆高機中，可有效地使用 油壓驅動系統所具有的油壓制動器爲常用制動器，除在製 造成本和配置空間的考量上能適切地構成外，尙可做成將 油壓馬達2 1A，2 1B直接安裝在前輪3A，3B之形 式。更且，與通常之扭矩轉換器式之堆高機同樣地，藉制 -IJ— — — — — — I --------^ ·111111-- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -14- 505611 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（12 ) 動器踏板3 3進行寸動操作。 再者’第6圖係表示控制例（制動特性）之說明圖。 即’第6 ( A )圖表示制動電位計之輸出範圍。在此 ’制動器從1 · 5 V生效，至3 · 5 V達到最高減速。制 動電壓在3 · 5〜4 · 5 V之間，視爲具有於3 · 5 V時 相同之特性者。當制動電壓在〇 · 5 V以下，或4 · 5 V 以上時，即判斷爲異常（斷線），須儘速停車。 當鍵形開關呈通電時而制動電壓爲1 · 5 V以上時， 即判斷爲制動返原不良，須等待至制動電壓到未滿1 · 5 V時才能行駛。 又，第6 ( B )圖表示自加速踏板移離而踏下制動踏 板時之減速時間。而，第6 ( C )圖表示自加速踏板移離 經2秒後踏下制動踏板至2 · 5 V之位置，再經2秒後放 開制動踏板之情形。 再者，於第6 ( D )圖表示一邊踏加速踏板一邊再踏 制動踏板時之特性，在此將未踏制動踏板時定爲1 〇 〇 % 。又第6 ( E )圖中表示自加速踏板移離腳時之減速時間 〇 於前述之實施形態中雖係採用追從轉向之迴旋腳輪形 式做左右一對後輪4 A，4 B，惟在左右一對後車輪4 A ，4 B之中，將一邊之後輪4做成以手輪藉由汽缸等強制 轉向之駕駛轉向形式，並將另一邊之後輪4做成迴旋腳輪 形式者亦可。在這時候，將一邊之後輪4的轉向角回蝕控 制油壓泵2 6 A，2 6 B，俾控制油壓馬達2 1 A， (請先閱讀背面之注意事項再填寫本頁) .裝 訂——a When the steering wheel 16 is in the neutral position ... As shown in Figure 4 (A), the left and right hydraulic motors 2 1A, 2 1 B have the same number of rotations 5 8, 5 9 , So do a straight forward action. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs b. The steering angle of the steering wheel (position signal 6 1) hours ... As shown in Figure 4 (B), let the left and right rotate in the same direction There is a difference between the number 58, 59 (for example, 58> 59) ° c. When the steering angle (position signal 6 1) of the steering wheel is in the middle ... As shown in Figure 4 (C), only one side of the front wheel is rotated (Such as' only rotate the left front wheel 3 A). -10- This paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 505611 A7 ----- B7 V. Description of Invention (8) d: Steering Wheel When the steering angle (position signal 6 1) is larger than that in the middle ... As shown in Figure 4 (D), in the left and right rotation, let the number of left and right rotations be 5 8, 5 9 There are differences between them (for example, 5 8 > 5 9). e: When the steering angle (position signal 6 1) of the steering wheel is at its maximum (the steering wheel is locked) ... As shown in Figure 4 (E), the rotation in the opposite direction of the left and right makes the number of left and right rotations 5 8 , 5 9 are the same. At this time, the radius of gyration must be minimized. In the foregoing, the 4th (B) to (E) diagram shows the situation where the right turn is performed, but the left turn can be similarly performed by turning the steering wheel 16 in the opposite direction. Although the one shown is a forward move, the backward move can be achieved in the same way. And when turning left and right, the left and right rear wheels 4A, 4 B, which are swivel casters, can follow the steering. In addition, the relationship between the steering angle of the steering wheel 16 and the number of rotations of the left and right hydraulic motors 2 1 A, 2 1 B, 5 8 and 5 9 can be changed arbitrarily by the setting of the controller 3 1. When the steering angle of 16 is constant (for example, only by the pivot of the unilateral wheel rotation), when the sharp turning is more than ', it is irrelevant to the accelerator pedal 3 2 and the number of rotations of the hydraulic motor 2 1 A, 2 1 B is 5 The upper limit of 8, 59 is controlled automatically. That is, 尙 does not reach the preset number of rotations of the hydraulic motors 2 1A, 2 1B 58 '59 before' can be controlled by the accelerator pedal 3 2, but it is managed to not exceed the setting 値. In terms of its methods, there are: In the case of a single-speed fixed motor: the controller 3 1 is input to the steering wheel. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 g t). — Jim — — — — I ills — ^ --------- (Please read the note on the back? Matters before filling out this page) 505611 A7 V. Description of invention (9; steering angle of 16; hydraulic motor 2 1A, 2 1 The number of rotations of B is 58, 5 9 'for controlling the swash plate of the hydraulic motors 2 1A, 2 1 B. In the case of a two-speed capacity conversion motor: When the steering angle of the steering wheel 16 reaches a certain value or more' The capacity conversion of 2 1 A, 2 1 B is controlled, and it is only rotated at a single speed to limit the number of rotations 5 8, etc. As mentioned above, the driving form of stacker 1 is because of the use of double pumps Due to the dual-motor type hydraulic drive system (HST system), the front wheels 3A and 3B can be used for turning, instead of using the rear wheels 4A and 4B to steer it. The tire slips, but at this time 'because of the caster type, it can be followed by the front wheels 3A, 3 Β dominates the forward and backward movements. The two-pump, two-motor type hydraulic drive system (HS T system) is used as the drive mode of the stacker 1, and the individual controls are used as the drive wheels. The left and right front wheels 3 A, 3 Β can improve maneuverability and reduce the radius of gyration. Furthermore, the front wheels 3 A and 3 B can be directly fitted to the hydraulic motors 2 1 A and 2 1 B mounted on the vehicle body 2, respectively. In addition to simplifying the power transmission section, it is possible to expand the degree of freedom in configuration. In addition to the high efficiency of the hydraulic drive system, no front differential transmission is required. 尙 Low fuel costs due to optimal engine control are expected The stacker 1 in this form is driven by the driver sitting on the seat 15 of the driver's seat 5, for example, by operating the lifting operation lever to actuate the lifting cylinder 11 through the lifting bracket 12 'Make the fork rod 1 3 along the vertical rod 6 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) _ 12-(Please read the precautions on the back before filling this page) Installation 丨 _ 丨丨 Order ---------. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 505611 A7 ________ ________________ B7 V. Description of the invention (1Q) The lifting operation enables the desired stacking operation. In addition, the tilting cylinder 8 is activated by operating the tilting operation lever, so that the vertical rod 6 swings around the connecting shaft 7 ( Tilting), you can change the position of the fork lever through the lifting bracket 1 2 (please read the precautions on the back before filling this page) 1 3. Then, refer to the attached second embodiment of the present invention as the second embodiment Figures 5 and 6 are as follows. The overall structure and the like in the second embodiment are the same as those in the first embodiment (FIGS. 1, 2 and 4). In the second embodiment, the rotation sensor 34 is installed at the center of rotation of the electric brake pedal 33. The hydraulic pumps 2 6 A and 2 6 B are electrically controlled structures that receive the driving command signals 5 2 and 5 3 from the controller 31 and then control the swash plate angle. The rotation sensor 34 is an example of a measurement method for measuring the amount of depression of the brake pedal 33, and a stroke sensor or the like may be used as the measurement method. In addition, the brake signal (detected signal) 6 2 from the rotation sensor 34 is input to the controller 31, that is, the driving instruction is output from the controller 31 to the hydraulic pumps 2 6 A and 2 6 B. The composition of the signals 5 2, 5 3. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is printed in this second embodiment. If you want to stop, etc., you can use the brake signal 6 2 output control corresponding to the amount of depression of the brake pedal 3 (press the 値). Device 31 is reached. This means that the hydraulic brake of the hydraulic drive system will produce a braking effect when the swash plate angle of the hydraulic pump reaches 0 °. Therefore, the electrically controlled hydraulic pumps 2 6 A and 2 6 B are used to electrically connect with the brake pedal 3 3. -13- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 505611 A7 _____ B7 V. Description of the invention (11) When the brake pedal 3 3 is depressed, the swash plate angle of the hydraulic pumps 2 6 A and 2 6 B becomes 0 °. However, if the brake pedal 33 is depressed, the swash plate angles of the hydraulic pumps 2 6 A and 2 6 B will be zero immediately. , It constitutes emergency braking and is different from the usual stacker. ‘Therefore, in order to provide the same feeling as a conventional stacker, it must be controlled by the system described below. That is, by stepping on the brake pedal 3 3, the amount of depression is detected by the rotation sensor 3 4, and the brake signal 6 2 is input to the control unit [| 器 31 1]. In response to the brake signal 6 2, the controller 3 1 outputs driving command signals 5 2 and 5 3 to the two hydraulic pumps 2 6 A and 2 6 B, respectively, for controlling the tilt of the hydraulic pumps 2 6 A and 2 6 B. Corner. That is, in response to the amount of depression of the brake pedal 33, the speed at which the swash plate angle is returned to 0 ° is controlled to perform the braking operation. At that time, it was set to make the swashplate angles of the hydraulic pumps 2 6 A and 2 6 B slightly before the end of the stroke of the brake pedal 3 3, and actuate the built-in hydraulic motor in conjunction with the end of the stroke. Parking brake in 2 1 A, 2 1 B. And by the automobile type hydraulic drive system, it is set to change the swashplate angle of the hydraulic pumps 2 6 A and 2 6 B as the accelerator pedal 3 2 is depressed, but once the foot on the accelerator pedal 3 2 is released, the swashplate The angle will then slowly return to 0 °. In addition, the brake circuit is considered the highest priority. As mentioned above, in hydraulically driven stackers, the hydraulic brakes of the hydraulic drive system can be effectively used as common brakes. In addition to the appropriate construction in consideration of manufacturing costs and space,尙 It can be made to install the hydraulic motors 2 1A, 2 1B directly on the front wheels 3A, 3B. In addition, similar to the conventional torque converter type stacker, borrowed -IJ — — — — — — I -------- ^ · 111111-- (Please read the precautions on the back before (Fill in this page) This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) -14- 505611 A7 B7 Printed by the Consumers ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (12) Actuator pedal 3 3 Perform jog operation. Furthermore, FIG. 6 is an explanatory diagram showing a control example (braking characteristics). That is, the "Fig. 6 (A)" shows the output range of the brake potentiometer. Here the brake becomes effective from 1 · 5 V and reaches the maximum deceleration of 3 · 5 V. The braking voltage is between 3 · 5 ~ 4 · 5 V, and it is considered to have the same characteristics as at 3 · 5 V. When the braking voltage is below 0 · 5 V or above 4 · 5 V, it is judged as abnormal (disconnected) and the vehicle must be stopped as soon as possible. When the key switch is energized and the braking voltage is 1 · 5 V or more, it is judged that the brake return is not good. You must wait until the braking voltage is less than 1 · 5 V before driving. Fig. 6 (B) shows the deceleration time when the brake pedal is depressed when the self-accelerating pedal is removed. Figure 6 (C) shows the situation where the brake pedal is depressed to a position of 2.5 V after 2 seconds since the accelerator pedal is removed, and the brake pedal is released after 2 seconds. In addition, FIG. 6 (D) shows the characteristics when the brake pedal is depressed while the accelerator pedal is depressed, and the percentage when the brake pedal is not depressed is set to 100%. The figure 6 (E) shows the deceleration time when the accelerator pedal is moved away from the foot. In the aforementioned embodiment, the left and right rear wheels 4 A and 4 B are made of turning casters that follow the steering. Among the left and right pair of rear wheels 4 A and 4 B, one side rear wheel 4 may be made into a steering steering type in which a hand wheel is forcibly steered by a cylinder or the like, and the other rear wheel 4 may be formed in a swivel caster form. At this time, the steering angle of the rear wheel 4 is etched back to control the hydraulic pumps 2 6 A, 2 6 B, and the hydraulic motor 2 1 A is controlled (please read the precautions on the back before filling this page). Binding ——
S 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -15- 505611 A7 B7 五、發明說明（13) 2 1 B之旋轉數5 8，5 9進行直進及迴旋操作。 (請先閱讀背面之注意事項再填寫本頁) 又於前述實施之形態中，係將迴旋時之行駛速度之改 變，藉由對應方向盤1 6之轉向角來控制油壓馬達2 1 A ，2 1 B之旋轉數5 8，5 9所完成，惟於執行本發明所 屬申請專利範圍第1項之際，譬如迴旋時之行駛速度，亦 可與方向盤1 6之轉向角不相干地，藉加速踏板3 2對油 壓馬達2 1 A，2 1 B之旋轉數5 8，5 9予以控制。 於前述之兩實施例中，指將行駛速度之變更，按照方 向盤1 6之轉向角（迴轉角）的位置訊號6 1來進行，惟 與通常之堆高機同樣地，在後輪4 A，4 B採用轉向操縱 機構之形式中，亦可按照該後輪4 A，4 B之轉向角進行 變速。 艮P，依照後輪4 A，4 B之轉向角（方向盤1 6之轉 向角）產生之測出訊號，將油壓泵2 6 A，2 6 B之斜盤 予以控制，藉以控制油壓馬達2 1 A，2 1 B之旋轉數 5 8，5 9和迴轉方向而進行者。在此情形下，係藉後輪 4 A，4 B之轉向角決定迴旋中心並以控制器3 1進行適 配的控制。 經濟部智慧財產局員工消費合作社印製 〔圖面之簡單說明〕 第1圖表示本發明之第1種實施例，係爲油壓驅動式 堆高機之側視圖。 第2圖係油壓驅動式堆高機所屬車輪部分局部截面之 平面俯視圖。 -16- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 505611 A7 B7 五、發明說明（14 ) 第3圖係油壓驅動式堆高機之系統架構圖。 第4圖係說明同爲油壓驅動式堆高機操縱狀態之槪略 平面俯視圖。 第5圖表示本發明之第2種實施例，係爲油壓驅動式 堆高機之系統架構圖。 第6圖係屬油壓驅動式堆高機之控制說明圖。 2 4 圖號說明〕 車體 A，3 B 前輪（驅動輪） A，4 B 後輪（轉向輪） 6 方向盤 (請先閱讀背面之注意事項再填寫本頁) 2 2 2 經濟部智慧財產局員工消費合作社印製 1 A 2 A 3 A 5 6 A 7 A 0 4S This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm) -15- 505611 A7 B7 V. Description of the invention (13) The rotation number of 2 1 B is 5 8, 5 9 for straight forward and revolving operations. (Please read the precautions on the back before filling this page.) In the form of the previous implementation, the driving speed during turning is changed, and the hydraulic motor 2 1 A is controlled by the steering angle of the steering wheel 16 The number of rotations of 1 B is completed by 5 8, 59, but when the first item of the scope of the patent application of the present invention is executed, for example, the driving speed when turning, it can also be irrelevant to the steering angle of the steering wheel 16 by accelerating. The pedal 3 2 controls the number of rotations of the hydraulic motors 2 1 A, 2 1 B, 5 8 and 5 9. In the foregoing two embodiments, the change of the running speed is performed in accordance with the position signal 61 of the steering angle (slewing angle) of the steering wheel 16, but the same as the ordinary stacker, at the rear wheel 4 A, In the form of 4 B adopting a steering control mechanism, the speed can also be changed according to the steering angles of the rear wheels 4 A and 4 B. That is, according to the measured signals generated by the steering angles of the rear wheels 4 A and 4 B (the steering angle of the steering wheel 16), the swash plates of the hydraulic pumps 2 6 A and 2 6 B are controlled to control the hydraulic motor. 2 1 A, 2 1 B with the number of rotations 5 8, 59 and the direction of rotation. In this case, the turning angle is determined by the steering angles of the rear wheels 4 A and 4 B, and the appropriate control is performed by the controller 31. Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economics [Simplified Description of Drawings] Figure 1 shows the first embodiment of the present invention, which is a side view of a hydraulically driven stacker. Fig. 2 is a plan top view of a partial cross section of a part of a wheel to which the hydraulically driven stacker belongs. -16- This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) 505611 A7 B7 V. Description of the invention (14) Figure 3 is the system architecture diagram of the hydraulic driven stacker. Fig. 4 is a schematic plan view illustrating the operating state of the hydraulically driven stacker. Fig. 5 shows a second embodiment of the present invention, which is a system architecture diagram of a hydraulically driven stacker. Fig. 6 is a control explanatory diagram of a hydraulically driven stacker. 2 4 Description of drawing number] Body A, 3 B Front wheel (drive wheel) A, 4 B Rear wheel (steering wheel) 6 Steering wheel (Please read the precautions on the back before filling this page) 2 2 2 Intellectual Property Bureau, Ministry of Economic Affairs Printed by employee consumer cooperative 1 A 2 A 3 A 5 6 A 7 A 0 4
胎環 2 1 B 2 2 B 2 3 B 引擎 2 6 B 2 7 B 油壓馬達 旋轉凸緣（驅動軸） 連結器 油壓泵 配管（如油壓軟管等） 電氣式變速操作桿 控制器 電氣式加速踏板 電氣式制動器踏板 迴轉感測器 -17- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）Tire ring 2 1 B 2 2 B 2 3 B Engine 2 6 B 2 7 B Hydraulic motor rotating flange (drive shaft) Connector hydraulic pump piping (such as hydraulic hose, etc.) Electric shift lever controller Electric Accelerator Pedal Electric Brake Pedal Rotary Sensor-17- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)