TWI474775B - Walk-behind mower - Google Patents
Walk-behind mower Download PDFInfo
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- TWI474775B TWI474775B TW101106019A TW101106019A TWI474775B TW I474775 B TWI474775 B TW I474775B TW 101106019 A TW101106019 A TW 101106019A TW 101106019 A TW101106019 A TW 101106019A TW I474775 B TWI474775 B TW I474775B
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- shaft
- drive shaft
- posture
- shift
- support body
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
- A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
- A01B69/007—Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/74—Cutting-height adjustment
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
- A01D34/86—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for use on sloping ground, e.g. on embankments or in ditches
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D75/00—Accessories for harvesters or mowers
- A01D75/002—Carriers for the transport of harvesters or mowers
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Harvester Elements (AREA)
Description
本發明,是關於在機體具備有以縱向姿勢的驅動軸芯為中心進行旋轉的割草用割刃,於上述機體的前部具備有前輪,並具備有從上述機體朝後方延伸出來的把手,具備有可使上述前輪支撐用的支撐體以橫向姿勢的支撐軸芯為中心成上下擺動自如地支撐在上述機體,根據該支撐體之擺動姿勢的設定來調整上述割刃之割草高度的調整機構之割草機。The present invention relates to a cutting blade for mowing that is provided with a driving shaft core that is rotated in a longitudinal direction, and a front wheel is provided at a front portion of the body, and a handle extending rearward from the body is provided. The support body for supporting the front wheel is supported by the support body so as to be vertically swingable around the support shaft core in the lateral posture, and the adjustment of the mowing height of the cutting edge is adjusted according to the setting of the swing posture of the support body. Institutional mower.
此外,本發明,是關於在以縱向姿勢的驅動軸芯為中心進行旋轉的驅動軸的下端側具備有割草用的割刃,在上述驅動軸的下端側配置有接地體的割草機。Further, the present invention relates to a lawn mower having a cutting blade for mowing on a lower end side of a drive shaft that rotates around a drive shaft core in a longitudinal direction, and a grounding body disposed on a lower end side of the drive shaft.
如上述構成的割草機,於日本特開2010-273584號公報(專利文獻1)中,所揭示的構成為是在移動式機體的前部位置支撐著以上端側之輸入軸的軸芯為中心成擺動自如的前輪傳動箱。於該前輪傳動箱的前端側支持著前輪。該專利文獻1中,揭示有利用操作把手的旋轉操作對前輪傳動箱的擺動量進行設定,藉此改變路面用割草裝置的對地高度執行割草高度調整的機構。In the above-described lawn mower, Japanese Laid-Open Patent Publication No. 2010-273584 (Patent Document 1) discloses a configuration in which a shaft core supporting an input shaft on the upper end side at a front portion of the movable body is The center is a swinging front wheel gearbox. The front wheel is supported on the front end side of the front wheel transmission case. Patent Document 1 discloses a mechanism for setting a swing amount of a front wheel transmission case by a rotation operation of an operation handle, thereby changing a ground height adjustment of a road surface mowing apparatus.
此外,如上述構成的割草機,於上述專利文獻1(段落編號【0052】~【0056】、第18圖~第20圖)中,所記載的構成是在具備有前車輪和後車輪的移動式機體具備 有路面用切斷裝置,在該移動式機體的側部具備有坡面之草類切斷用的坡面切斷裝置。於該專利文獻1中,是在移動式機體的側部位置具備有相對於該側部位置以前後朝向姿勢的軸芯為中心成擺動自如的坡面用甲板,在該坡面用甲板所支撐之驅動軸的下端側具備有割草用的割刃,在驅動軸的下端側具備有接地體,藉此構成坡面用切斷裝置。因此,於作業時使接地體接地在地面,藉此就能夠定出對地面之割刃的高度,能夠維持坡面用切斷裝置的割草高度。Further, in the above-described Patent Document 1 (paragraph Nos. [0052] to [0056], and Figs. 18 to 20), the mower described above is provided with the front wheel and the rear wheel. Mobile body There is a road surface cutting device, and a slope cutting device for cutting grasses having a slope surface is provided at a side portion of the mobile body. In the side of the movable body, the side surface of the movable body is provided with a deck for swinging around the axis of the front and rear positions of the side position, and the deck is supported by the deck. The lower end side of the drive shaft is provided with a cutting blade for mowing, and a grounding body is provided on the lower end side of the drive shaft to constitute a slope cutting device. Therefore, the grounding body is grounded on the ground during the work, whereby the height of the cutting edge to the ground can be determined, and the mowing height of the cutting device for the slope can be maintained.
另外,於該專利文獻1中,坡面用甲板,是構成為以橫向姿勢的軸芯為中心成擺動自如支撐在移動式機體,利用操作桿的操作使坡面用切斷裝置和坡面用甲板一起傾斜藉此得以執行割草高度的調整。Further, in the above-described Patent Document 1, the slope deck is configured to be swingably supported by a movable body centering on a shaft core in a lateral posture, and the slope cutting device and the slope surface are operated by the operation of the operating lever. The deck is tilted together to perform the adjustment of the mowing height.
專利文獻1中,為了執行前輪傳動箱之擺動量的調整,是構成為連結前輪傳動箱的起吊具,將該起吊具的驅動螺桿部朝上方延伸,將操作把手的基端輪轂部螺合在驅動螺桿部。In Patent Document 1, in order to perform the adjustment of the swing amount of the front wheel transmission case, the hoisting device that connects the front wheel transmission case is configured to extend the drive screw portion of the hoisting device upward, and the base end hub portion of the operation handle is screwed in Drive the screw section.
於該構成中,是需要有由操作把手旋轉操作的基端輪轂部,同時需要有該操作把手支撐用的支撐構造,又需要有螺合於基端輪轂部的驅動螺桿部和配備有該驅動螺桿部的前輪傳動箱等,因此零件數量增多導致構成複雜化。In this configuration, it is necessary to have a base end hub portion that is rotatably operated by the operation handle, and a support structure for supporting the operation handle is required, and a drive screw portion screwed to the base end hub portion is required and equipped with the drive. The front wheel transmission case of the screw portion and the like, and thus the number of parts is increased to cause a complicated structure.
此外,專利文獻1所揭示的割草高度調整用的機構,是需要操作者站在移動式機體的前部位置對操作把手進行操作,因此也會讓操作者感到麻煩。Further, the mechanism for adjusting the mowing height disclosed in Patent Document 1 requires the operator to operate the operation handle at the front position of the mobile body, which also causes trouble to the operator.
另外,如專利文獻1的記載所示,若要以坡面用切斷裝置全體性擺動的形態來調整高度,則活動部份容易成為大型,導致調整構造的大型化。此外,專利文獻1的調整構造,是構成為以接地體成接地的狀態使坡面用切斷裝置全體性傾斜,因此就無法大幅改變割草高度的調整量。In addition, as shown in the description of the patent document 1, when the height is adjusted in a state in which the slope cutting device is integrally swung, the movable portion is likely to be large, and the adjustment structure is increased in size. In addition, the adjustment structure of the patent document 1 is configured such that the slope cutting device is tilted in a state where the grounding body is grounded, and thus the amount of adjustment of the mowing height cannot be greatly changed.
該專利文獻1的割草機,是於割刃外圍的旋轉軌跡位於與坡面(地面)平行的假想平面上的狀態下割草高度為最高,於旋轉軌跡大幅傾斜的狀態下割草高度就變低,所以若要將割草高度設定成較高,則需要將接地體替換成從割刃往下方突出之突出量為較大的接地體,因此比較費工。In the lawn mower of Patent Document 1, the mowing height is highest in a state where the rotation locus around the cutting edge is on an imaginary plane parallel to the slope surface (ground), and the mowing height is high in a state where the rotation locus is largely inclined. It is low, so if the mowing height is set to be high, it is necessary to replace the grounding body with a grounding body that protrudes downward from the cutting edge and has a large amount of protrusion, which is relatively labor-intensive.
本發明目的之一,是在於簡便構成能夠調整割草高度的調整機構。One of the objects of the present invention is to easily configure an adjustment mechanism capable of adjusting the height of mowing.
此外,本發明另一目的,是在於針對具備有以接地體的接地決定割草高度之割草高度調整機構的割草機,合理性構成能夠大幅調整割草高度的調整機構。Further, another object of the present invention is to provide a lawn mower having a mowing height adjusting mechanism that determines the mowing height by the grounding of the grounding body, and an adjustment mechanism capable of greatly adjusting the mowing height.
本發明相關的割草機,其是構成為於機體具備有以縱向姿勢的驅動軸芯為中心進行旋轉的割草用割刃,在上述機體的前部具備有前輪,具備有從上述機體朝後方延伸出 來的把手,並具備有可使上述前輪支撐用的支撐體以橫向姿勢的支撐軸芯為中心成上下擺動自如地支撐在上述機體,根據該支撐體之擺動姿勢的設定來調整上述割刃之割草高度的調整機構, 上述調整機構,是構成為具備有轉換操作部可將上述支撐體的姿勢自由轉換成使上述支撐體的姿勢為固定的固定狀態和容許上述支撐體的姿勢自由擺動的解除狀態,當以該轉換操作部將上述支撐體設定成上述解除狀態時,是根據上述機體之前部的抬起高度之設定使上述前輪往下方或上方自由移位,該移位可容許上述支撐體的擺動。The lawn mower according to the present invention is configured such that the machine body includes a cutting blade for cutting the blade core in a longitudinal direction, and a front wheel is provided at a front portion of the body, and the body is provided from the body toward Extend rearward The handle is provided, and the support body for supporting the front wheel is supported by the support body in a lateral posture, and is supported by the body up and down, and the cutting edge is adjusted according to the setting of the swing posture of the support body. Mowing height adjustment mechanism, The adjustment mechanism includes a switching operation unit that can freely convert the posture of the support body into a fixed state in which the posture of the support body is fixed, and a release state in which the posture of the support body is allowed to swing freely. When the operation unit sets the support body in the released state, the front wheel is freely displaced downward or upward according to the setting of the lift height of the front portion of the body, and the displacement allows the swing of the support body.
根據該構成時,利用轉換操作部將支撐體設定成解除狀態,利用把手的操作調整機體之前部的抬起量,是能夠自由擺動支撐體使前輪達成接地的姿勢。如上述將支撐體擺動直到割刃和地面的高度達到割草高度所要對應之值為止之後,就利用轉換操作部將支撐體設定成固定狀態,藉此保持割刃和地面的對地高度,實現割草高度的調整。According to this configuration, the support unit is set to the released state by the switching operation unit, and the amount of lift of the front portion of the body is adjusted by the operation of the handle, so that the support body can be swinged freely to bring the front wheel to the ground. After the support body is swung as described above until the height of the cutting edge and the ground reaches the value corresponding to the mowing height, the support body is set to a fixed state by the switching operation portion, thereby maintaining the height of the cutting edge and the ground to the ground. The height of the mowing is adjusted.
其結果,不必使用多數的零件,同時也不必使用精度高的構成就可簡便構成能夠調整割草高度的調整機構。As a result, it is not necessary to use a large number of components, and it is also possible to easily configure an adjustment mechanism capable of adjusting the mowing height without using a high-precision configuration.
本發明也可構成為,上述轉換操作部具備有要對應上述支撐體之複數擺動姿勢的複數卡合部,和,以卡合於複數的上述卡合部之1個卡合部來保持上述支撐體之擺動姿勢的鎖定體,同時上述轉換操作部又具備有要執行上述卡合部和上述鎖定體之卡合及解除之轉換的操作單元。In the present invention, the switching operation unit may include a plurality of engaging portions that correspond to the plurality of swinging postures of the support body, and the one of the engaging portions that are engaged with the plurality of engaging portions to hold the support In the lock body of the swinging posture of the body, the switching operation unit further includes an operation unit for performing switching between the engagement portion and the lock body.
根據上述構成時,利用操作單元的操作是能夠從卡合 部解除鎖定體的卡合,於該解除之後利用操作單元的操作選擇複數卡合部中的一個卡合部使鎖定體卡合,是能夠將支撐體設定成複數擺動姿勢中的一個姿勢。該構成是要讓鎖定體卡合在卡合部的構成,因此能夠堅固地保持擺動姿勢。According to the above configuration, the operation using the operation unit is capable of being engaged The engagement of the unlocking body is released, and after the release, one of the plurality of engaging portions is selected by the operation of the operating unit to engage the locking body, and the support can be set to one of the plurality of swinging postures. This configuration is such that the lock body is engaged with the engagement portion, so that the swing posture can be firmly maintained.
本發明也可構成為,複數的上述卡合部,是構成為具備有卡合板,該卡合板是於其以上述支撐軸芯為中心的圓弧狀區域配置有複數的卡合孔,上述鎖定體以可卡脫於上述卡合孔的鎖定構件構成,上述轉換操作部具有可獲得彈推力使上述鎖定構件卡合於上述卡合孔的鎖簧,上述操作單元具有可作用力量使上述鎖定構件從卡合孔脫離的操作鋼絲,透過該操作鋼絲使力量朝可使上述鎖定構件從上述卡合孔離開之方向作用的鎖定解除桿是配備在上述把手。In the present invention, the plurality of engaging portions may be configured to include an engaging plate that has a plurality of engaging holes disposed in an arcuate region centering on the support shaft core, and the locking portion The body is formed by a locking member that is detachable from the engaging hole, and the switching operation portion has a lock spring that can obtain a spring force to engage the locking member with the engaging hole, and the operating unit has a working force to cause the locking member The operation wire that is detached from the engagement hole is provided with the lock release lever that acts to move the lock member away from the engagement hole through the operation wire.
根據上述構成時,對於卡合板的卡合孔因是以鎖簧的彈推力使鎖定構件卡合,所以能夠確實保持鎖定狀態。此外,由於是構成為利用來自於把手之操作鋼絲的操作使鎖定構件脫離卡合孔,因此操作者不必站在機體的前部進行操作就能夠調整割草高度。According to the above configuration, since the engaging hole of the engaging plate is engaged with the locking member by the elastic thrust of the lock spring, the locked state can be surely maintained. Further, since the lock member is disengaged from the engagement hole by the operation of the operation wire from the handle, the operator can adjust the mowing height without standing at the front of the body.
本發明也可構成為,在上述機體具備有原動部,上述支撐體以內藏有傳動機構可將來自於上述原動部的驅動力傳至上述前輪的傳動箱構成。In the present invention, the body may include a motive portion, and the support body may include a transmission mechanism that transmits a driving force from the motive portion to the front wheel.
根據上述構成時,將原動部的驅動力從傳動箱傳至前輪就能夠獲得行駛驅動力。According to the above configuration, the driving force of the driving force can be obtained by transmitting the driving force of the motive portion from the transmission case to the front wheel.
本發明相關的割草機,其是於以縱向姿勢的驅動軸芯 為中心進行旋轉之驅動軸的下端側具備有割草用割刃,於上述驅動軸的下端側配置有接地體的割草機, 其具備有以內嵌在上述驅動軸的狀態沿著上述驅動軸的驅動軸芯移動自如與上述驅動軸一體性旋轉的移位軸,在上述移位軸的下端具備有上述接地體的同時,具備有可對上述移位軸之往下方的突出量進行調整的調整部。The lawn mower according to the present invention is a driving core in a longitudinal posture The lower end side of the drive shaft that rotates at the center is provided with a lawn cutting blade, and a lawn mower is disposed on the lower end side of the drive shaft. a displacement shaft that is movable integrally with the drive shaft along a drive shaft core of the drive shaft in a state of being embedded in the drive shaft, and the grounding body is provided at a lower end of the shift shaft. An adjustment unit that adjusts the amount of protrusion of the shift shaft downward is provided.
根據該構成時,透過調整部使移位軸對驅動軸成沿著驅動軸芯移動,就能夠改變移位軸下端所具備的接地體和驅動軸所具備的割刃之相對距離,能夠任意設定割草高度。特別是,該構成,是能夠容易增大驅動軸和移位軸的相對性移動量,與專利文獻1所示之使驅動軸和割刃一體性傾斜的構成相比其活動部份較小所以還能夠抑制大型化。According to this configuration, the transmission adjusting unit moves the shift shaft along the drive shaft core, thereby changing the relative distance between the grounding body provided at the lower end of the shift shaft and the cutting edge of the drive shaft, and can be arbitrarily set. Mowing height. In particular, in this configuration, the relative movement amount of the drive shaft and the shift shaft can be easily increased, and the movable portion is smaller than the configuration in which the drive shaft and the cutting edge are integrally inclined as shown in Patent Document 1. It is also possible to suppress the increase in size.
因此,雖然割草機是具備有以接地體的接地來決定割草高度的調整機構之割草機,還是可構成有能夠大幅調整割草高度的調整機構。Therefore, although the lawn mower is a lawn mower equipped with an adjustment mechanism that determines the mowing height by the grounding of the grounding body, an adjustment mechanism capable of greatly adjusting the mowing height can be constructed.
本發明也可構成為,上述驅動軸,是旋轉自如地支撐在機殼的同時,形成為筒狀具有上述移位軸所要插通的孔部,在上述孔部的內圍和上述移位軸的外圍之間,形成有容許上述移位軸對上述驅動軸成上下動的同時使上述驅動軸和上述移位軸一體旋轉的傳動手段。In the present invention, the drive shaft is rotatably supported by the casing, and is formed in a tubular shape having a hole through which the displacement shaft is to be inserted, and an inner circumference of the hole portion and the displacement shaft. Between the outer periphery, a transmission means for allowing the shift shaft to move up and down with respect to the drive shaft and integrally rotating the drive shaft and the shift shaft is formed.
根據上述構成時,當於筒狀之驅動軸的孔部插通有移位軸,使移位軸對驅動軸成沿著驅動軸芯移動時,形成在驅動軸之孔部的內圍和移位軸的外圍之間傳動手段會容許 該移動,將驅動軸的旋轉驅動力經由傳動手段傳至移位軸,使該等驅動軸和移位軸一體性旋轉。如此一來,為了將驅動軸的驅動力傳至移位軸即使不具備有齒輪式或鏈條式等複雜的傳動系統,只要採用花鍵軸或角軸等就能夠使傳動手段的構成比較簡單。According to the above configuration, when the shift shaft is inserted into the hole portion of the cylindrical drive shaft, and the shift shaft is moved along the drive shaft core with respect to the drive shaft, the inner circumference and the shift of the hole portion of the drive shaft are formed. The transmission between the periphery of the bit axis will allow In this movement, the rotational driving force of the drive shaft is transmitted to the shift shaft via the transmission means, and the drive shaft and the shift shaft are integrally rotated. In this way, in order to transmit the driving force of the drive shaft to the shift shaft, even if a complicated transmission system such as a gear type or a chain type is not provided, the configuration of the transmission means can be simplified by using a spline shaft or an angular shaft.
本發明也可構成為,上述調整部,具備:以容許上述移位軸旋轉的狀態卡合在上述移位軸的卡合構件;以平行於上述驅動軸芯的姿勢配備成旋轉自如的操作軸;及於該操作軸旋轉操作時使上述卡合構件沿著上述驅動軸芯移動的螺桿部。In the present invention, the adjustment unit may include an engagement member that engages with the shift shaft in a state in which the shift shaft is allowed to rotate, and an operation shaft that is rotatable in a posture parallel to the drive shaft core. And a screw portion that moves the engaging member along the driving shaft core during the operation of the operating shaft.
根據上述構成時,對操作軸執行旋轉操作利用來自於螺桿部的力量就可使卡合構件沿著驅動軸芯動作,使該卡合構件所卡合的移位軸沿著驅動軸芯動作。此外,由於調整部具備有螺桿部,因此也能夠執行微小量的調整,即使從移位軸沿著驅動軸芯的方向作用有外力時螺桿部份也不會旋轉,能夠維持所設定的割草高度。According to the above configuration, the rotation operation is performed on the operation shaft, and the engagement member can be moved along the drive shaft core by the force from the screw portion, and the shift shaft to which the engagement member is engaged can be moved along the drive shaft core. Further, since the adjustment portion is provided with the screw portion, it is possible to perform a small amount of adjustment, and the screw portion does not rotate even when an external force acts from the displacement shaft in the direction of the drive shaft core, and the set mowing can be maintained. height.
本發明也可構成為,於機體具備有要接觸於地面的車輪和原動部,在該機體的側部位置支撐有以前後朝向姿勢的擺動軸芯為中心成擺動自如之上述機殼的基端部,對該機殼支撐有上述驅動軸,於該驅動軸具備有要傳達來自於原動部之驅動力用的傳動機構。In the present invention, the body may be provided with a wheel and a motive portion to be in contact with the ground, and a base end of the casing that is swingably supported at a side portion of the body at a side portion of the body may be oscillated. The drive shaft is supported by the casing, and the drive shaft is provided with a transmission mechanism for transmitting a driving force from the motive portion.
根據上述構成時,由於是在機體的側部支撐有以前後朝向姿勢的擺動軸芯為中心成擺動自如之上述機殼的基端部,因此割刃的旋轉軌跡會以要與坡面成平行的姿勢容許 機殼的擺動,藉此就能夠割除坡面的草。如上述即使是於構成為擺動自如的機殼具備有驅動軸的構成,還是在能夠自由調整從驅動軸往下方突出之突出量的移位軸具備有接地體,因此就能夠不拘機殼的擺動姿勢使割草高度維持成所設定的值。According to the above configuration, since the base end portion of the casing that swings freely around the pivot axis of the front and rear postures is supported on the side portion of the body, the rotation locus of the cutting edge is parallel to the slope surface. Posture tolerance The swing of the casing, whereby the grass on the slope can be cut off. As described above, even if the casing that is configured to be swingable is provided with the drive shaft, or the shift shaft that can freely adjust the amount of protrusion that protrudes downward from the drive shaft, the grounding body is provided, so that the swing of the casing can be eliminated. The posture maintains the mowing height at the set value.
以下,根據圖面對本發明的實施形態進行說明。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
如第1圖~第4圖所示,割草機是構成為在以單一前輪1和單一後輪2行駛的移動式機體A的上部具備有做為原動部的引擎4、燃料箱5、消音器6等,以從該移動式機體A的後部位置朝後方延伸的形態具備有左右一對的操縱把手7,於該移動式機體A的下面側具備有要對路面之草類進行切斷的路面用切斷裝置B,再加上,於該移動式機體A的左側部具備有要對坡面之草類進行切斷的坡面用切斷裝置C。於該割草機中,也可具備有利用來自於蓄電池的電源形成啟動的電動馬達藉此構成原動部。As shown in FIGS. 1 to 4, the lawn mower is configured such that the upper part of the mobile body A that travels on the single front wheel 1 and the single rear wheel 2 is provided with the engine 4, the fuel tank 5, and the muffler as the motive parts. The device 6 and the like are provided with a pair of left and right steering handles 7 extending from the rear position of the movable body A, and the lower side of the movable body A is provided with a grass to be cut off from the road surface. The road surface cutting device B is provided with a slope cutting device C for cutting the grass on the slope surface on the left side portion of the mobile body A. In the lawn mower, an electric motor that is activated by a power source from a battery may be provided to constitute a motive unit.
於移動式機體的機體框架10具備中心機殼11,於該中心機殼的內部下側配置著具有中心刀刃12(割刃之一例)的路面用切斷裝置B。此外,於機體框架10的左側部具備側機殼13,於該側機殼13的內部下側配置著具有 側刀刃14的坡面用切斷裝置C。側機殼13,如第5圖、第6圖所示,是以沿著移動式機體A前後方向之姿勢的擺動軸芯P為中心成擺動自如支撐在機體框架10。為了讓側機殼13能夠擺動,是於中心機殼11將左端的一部份成型為以擺動軸芯P為中心的筒狀,將側機殼13之右端的一部份成型為以擺動軸芯P為中心的筒狀,藉由具備有貫通在該等筒狀部之內部空間的樞軸15來實現擺動。The body frame 10 of the mobile body is provided with a center casing 11, and a road surface cutting device B having a center blade 12 (an example of a cutting edge) is disposed below the center casing. Further, a side casing 13 is provided on the left side portion of the body frame 10, and is disposed on the lower side of the inside of the side casing 13 The cutting device C is used for the slope of the side cutting edge 14. As shown in FIGS. 5 and 6, the side casing 13 is swingably supported by the body frame 10 centering on the swing axis P along the posture in the front-rear direction of the movable body A. In order to allow the side casing 13 to swing, a part of the left end of the center casing 11 is formed into a cylindrical shape centering on the swinging shaft core P, and a part of the right end of the side casing 13 is formed into a swinging shaft. The core P has a cylindrical shape at the center, and is pivoted by a pivot shaft 15 that penetrates the internal space of the tubular portions.
前輪1,是驅動旋轉自如地支撐在做為支撐體之前輪傳動箱16的前端側下部,後輪2是驅動旋轉自如地支撐在後輪傳動箱17的下部。於移動式機體A的上部位置具備有可將引擎4的驅動力傳至後輪傳動箱17和前輪傳動箱16藉此使驅動力傳至前輪1和後輪2的行駛驅動機構Dr。此外,在中心機殼11的上面和側機殼13的上面所涉及的區域,具備有可將來自於引擎4的驅動力傳至路面用切斷裝置B和坡面用切斷裝置C的割草驅動機構Dc。The front wheel 1 is rotatably supported by a lower portion of the front end side of the wheel transmission case 16 as a support body, and the rear wheel 2 is rotatably supported at a lower portion of the rear wheel transmission case 17. The upper portion of the mobile body A is provided with a travel drive mechanism Dr that transmits the driving force of the engine 4 to the rear wheel transmission case 17 and the front wheel transmission case 16 to transmit the driving force to the front wheel 1 and the rear wheel 2. Further, in the region of the upper surface of the center casing 11 and the upper surface of the side casing 13, the cutting force for transmitting the driving force from the engine 4 to the road surface cutting device B and the slope cutting device C is provided. Grass drive mechanism Dc.
由於是在移動式機體A的側部位置擺動自如地支撐有側機殼13,因此當要在移動式機體A的左側有坡面存在的環境下執行割草作業時,因側機殼13為能夠自由擺動的狀態,所以如第6圖所示坡面切斷裝置C就能夠擺動成為沿著坡面的姿勢,實現坡面草類的切斷。此外,路面用切斷裝置B的中心刀刃12和坡面用切斷裝置C的側刀刃14雖然是配置成旋轉軌跡會重疊的位置關係,但如第4圖所示,只要將中心刀刃12和側刀刃14的旋轉相位錯開90度,就可使中心刀刃12和側刀刃14以不接觸的關 係構成能夠旋轉。另,割草驅動機構Dc,如下述說明其是構成為彎折自如能夠容許側機殼13的擺動。Since the side casing 13 is slidably supported at the side position of the mobile body A, when the mowing operation is to be performed in an environment where the slope on the left side of the mobile body A exists, the side casing 13 is Since the slope cutting device C can be swung into a posture along the slope surface as shown in Fig. 6, the grass on the slope surface can be cut. Further, the center blade 12 of the road surface cutting device B and the side blade 14 of the slope cutting device C are arranged in a positional relationship in which the rotation trajectories are overlapped. However, as shown in Fig. 4, the center blade 12 and the center blade 12 are provided. The rotation phase of the side cutting edge 14 is shifted by 90 degrees, so that the central cutting edge 12 and the side cutting edge 14 can be kept out of contact. The structure is rotatable. Further, the mowing drive mechanism Dc is configured to allow the swing of the side casing 13 to be freely configured as described below.
基於上述構成,該割草機,就能夠邊以來自於引擎4的驅動力驅動前輪1和後輪2使移動式機子體行駛的同時,邊以來自於引擎4的驅動力驅動路面用切斷裝置B和坡面用切斷裝置C,以路面驅動路面用切斷裝置B切斷水平姿勢之路面上面的草類之同時,以坡面用切斷裝置C切斷坡面的草類藉此執行割草作業。According to the above configuration, the lawn mower can drive the front wheel 1 and the rear wheel 2 to drive the mobile machine body while driving from the engine 4, and drive the road surface with the driving force from the engine 4. The cutting device B and the slope cutting device C cut the grass on the road surface in the horizontal posture by the road surface cutting device B, and cut the grass on the slope surface with the cutting device C. This performs a mowing operation.
前輪傳動箱16,如第2圖、第3圖、第10圖、第11圖所示,是於上端部具備輸入軸18,於下端部具備前輪驅動軸19,於該前輪驅動軸19連結著前輪1,於該前輪傳動箱16內藏有鏈條式傳動機構可將輸入軸18的驅動力傳至前輪驅動軸19。於機體框架10的前部位置具備縱向姿勢的前部托座20,對該前部托座20,支撐有以輸入軸18同軸芯的支撐軸芯Q為中心成擺動自如的前輪傳動箱16。於輸入軸18具備有所要連結的中間軸21,於該中間軸21的外端具備有輸入鏈輪22。該前輪傳動箱16,是做為要根據其擺動姿勢的設定來設定路面用切斷裝置B之草類割除高度的中心割草高度調整機構發揮功能。該中心割草高度調整機構的細部將於下述進行說明。As shown in FIG. 2, FIG. 3, FIG. 10, and FIG. 11, the front wheel transmission case 16 includes an input shaft 18 at the upper end portion and a front wheel drive shaft 19 at the lower end portion, and the front wheel drive shaft 19 is coupled to the front wheel drive shaft 19. The front wheel 1 has a chain transmission mechanism incorporated in the front wheel transmission case 16 to transmit the driving force of the input shaft 18 to the front wheel drive shaft 19. A front bracket 20 having a longitudinal posture is provided at a front portion of the body frame 10, and the front bracket 20 supports a front wheel transmission case 16 that is swingable about a support shaft Q that is coaxial with the input shaft 18. The input shaft 18 is provided with an intermediate shaft 21 to be coupled, and an outer end of the intermediate shaft 21 is provided with an input sprocket 22. The front wheel transmission case 16 functions as a center mowing height adjustment mechanism that sets the grass cutting height of the road surface cutting device B in accordance with the setting of the swing posture. The details of the center mowing height adjustment mechanism will be described below.
後輪傳動箱17,是於上端部具備被驅動軸(未圖示),於下端部具備後輪驅動軸25,於上下的中間位置 具備中間輸出軸26,於後輪驅動軸25連結著後輪2,於該後輪傳動箱17內藏有鏈條式傳動機構(未圖示)可將被驅動軸的驅動力傳至後輪驅動軸25和中間輸出軸26。該後輪傳動箱17是連結固定在機體框架10的後端部,如第2圖所示,在與被驅動軸(未圖示)相同的軸芯上具備有行駛離合器機構27和輸入皮帶輪28,該行駛離合器機構27是執行要從輸入皮帶輪28傳至被驅動軸(未圖示)之驅動力的斷續。The rear wheel transmission case 17 includes a driven shaft (not shown) at the upper end portion and a rear wheel drive shaft 25 at the lower end portion. The intermediate output shaft 26 is coupled to the rear wheel 2 at the rear wheel drive shaft 25, and a chain transmission mechanism (not shown) is incorporated in the rear wheel transmission case 17 to transmit the driving force of the driven shaft to the rear wheel drive. Axis 25 and intermediate output shaft 26. The rear wheel transmission case 17 is coupled and fixed to the rear end portion of the body frame 10. As shown in Fig. 2, the same clutch core (not shown) is provided with a running clutch mechanism 27 and an input pulley 28. The running clutch mechanism 27 is a discontinuity that performs a driving force to be transmitted from the input pulley 28 to the driven shaft (not shown).
於中間輸出軸26的外端具有有輸出鏈輪29,從該輸出鏈輪29至前輪傳動箱16的輸入鏈輪22是捲繞有以無端鏈條形成的連動鏈條30。此外,在引擎4之輸出軸所具備的第1輸出皮帶輪31A和輸入皮帶輪28是捲繞有以無端皮帶形成的傳動皮帶32。藉由具備有該前輪傳動箱16、後輪傳動箱17,和,可將引擎4之驅動力傳至後輪傳動箱17的傳動皮帶32,及,可將後輪傳動箱17之驅動力傳至前輪傳動箱16的連動鏈條30就可構成行駛驅動機構Dr。An outer end of the intermediate output shaft 26 has an output sprocket 29 from which the input sprocket 22 of the front wheel transmission case 16 is wound with an interlocking chain 30 formed of an endless chain. Further, the first output pulley 31A and the input pulley 28 provided in the output shaft of the engine 4 are wound with a transmission belt 32 formed of an endless belt. By providing the front wheel transmission case 16, the rear wheel transmission case 17, and the drive belt 32 for transmitting the driving force of the engine 4 to the rear wheel transmission case 17, the driving force of the rear wheel transmission case 17 can be transmitted. The interlocking chain 30 to the front wheel transmission case 16 can constitute the travel drive mechanism Dr.
行駛離合器機構27操作用的行駛離合器操縱把33(參照第10圖)是配備在操縱把手7左側的握把7G附近,根據該行駛離合器操縱把33的握緊操作對行駛離合器機構27進行控制的行駛離合器鋼絲34,是配備在行駛離合器操縱把33和行駛離合器機構27的操作臂27A之間。圖面上雖然未詳細加以圖示,但行駛離合器鋼絲34具有可將內鋼絲收容在外鋼絲之內部的構造,於行駛離合 器操縱把33連結有內鋼絲之一方的端部,於操作臂27A連結有內鋼絲之另一方的端部。The running clutch operating lever 33 (refer to FIG. 10) for operating the running clutch mechanism 27 is provided near the grip 7G on the left side of the operating handle 7, and controls the running clutch mechanism 27 in accordance with the gripping operation of the running clutch operating lever 33. The travel clutch wire 34 is provided between the travel clutch operating handle 33 and the operating arm 27A of the travel clutch mechanism 27. Although not shown in detail in the drawing, the running clutch wire 34 has a structure in which the inner wire can be housed inside the outer wire, and is driven away. The one of the inner wires is connected to one end of the inner wire, and the other end of the inner wire is connected to the operating arm 27A.
基於該構成,只要對行駛離合器操縱把33進行握緊操作透過行駛離合器鋼絲34就可使行駛離合器機構27輸入操作,使引擎4的驅動力從傳動皮帶32傳至後輪傳動箱17。該傳動會造成後輪2驅動,使與驅動同步的驅動力從連動鏈條30傳至前輪傳動箱16,使前輪1驅動執行移動式機體A的行駛。With this configuration, as long as the gripping operation of the running clutch operating lever 33 is transmitted through the running clutch wire 34, the running clutch mechanism 27 can be input and the driving force of the engine 4 can be transmitted from the transmission belt 32 to the rear wheel transmission case 17. The transmission causes the rear wheel 2 to drive, so that the driving force synchronized with the drive is transmitted from the interlocking chain 30 to the front wheel transmission case 16, and the front wheel 1 is driven to perform the traveling of the mobile body A.
如第3圖~第6圖所示,具備有要配置在中心機殼11上部位置的中心齒輪箱40,和,要配置在側機殼13上部位置的側齒輪箱41,並且具備有:可將從中心齒輪箱40以橫向延伸出來之驅動軸42所輸出的驅動力傳至中心刀刃12的傳動系統;及可將來自於驅動軸42的驅動力和來自於2個接合機構43和伸縮自如之中間傳動軸44該等的驅動力傳至側齒輪箱41的受動軸45,然後從該側齒輪箱41傳至側刀刃4的傳動系統,藉此就可構成割草驅動機構Dc。As shown in Figs. 3 to 6, there is provided a center gear case 40 to be disposed at an upper portion of the center casing 11, and a side gear case 41 to be disposed at an upper position of the side casing 13, and is provided with: The driving force output from the drive shaft 42 extending laterally from the center gear box 40 is transmitted to the transmission system of the center cutting edge 12; and the driving force from the driving shaft 42 and the two engaging mechanisms 43 and the expansion and contraction can be freely The driving force of the intermediate transmission shaft 44 is transmitted to the driven shaft 45 of the side gear case 41, and then transmitted from the side gear case 41 to the transmission system of the side cutting edge 4, whereby the mowing drive mechanism Dc can be constructed.
上述2個接合機構43是採用萬向聯軸節等具有以彎折狀態能夠傳達旋轉驅動力之功能的接合機構,中間傳動軸44是採用於外軸的內部內嵌有內軸,對該內嵌部份使用花鍵軸或角軸等就能夠以力矩傳動自如朝軸芯方向相對性移動的形態成為伸縮自如的傳動軸。The two engagement mechanisms 43 are joint mechanisms having a function of transmitting a rotational driving force in a bent state, such as a universal joint, and the intermediate transmission shaft 44 is formed by embedding an inner shaft in the outer shaft. The fitting portion is a telescopically movable transmission shaft that can be relatively moved in the direction of the axial direction by a torque transmission using a spline shaft or an angular shaft.
於驅動軸42的外端位置具備有驅動皮帶輪46,從引擎4之輸出軸所具備的第2輸出皮帶輪31B至驅動皮帶輪46捲繞有驅動皮帶47,又具備有可對該驅動皮帶47作用張力的張緊皮帶輪48。該張緊皮帶輪48是旋轉自如地支承在張緊臂49的擺動端,該張緊臂49是擺動自如支撐在機體框架10。利用該張緊臂49的擺動操作構成要執行驅動皮帶47之驅動力斷續的割草離合器機構。A drive pulley 46 is provided at an outer end position of the drive shaft 42, and a drive belt 47 is wound from a second output pulley 31B provided in an output shaft of the engine 4 to the drive pulley 46, and a tension can be applied to the drive belt 47. Tensioning pulley 48. The tension pulley 48 is rotatably supported by the swing end of the tension arm 49, and the tension arm 49 is swingably supported by the body frame 10. The swinging operation by the tensioning arm 49 constitutes a mowing clutch mechanism for performing the driving force interruption of the driving belt 47.
如第1圖、第3圖所示,割草離合器機構操作用的割草離合器操縱把50,是配置在操縱把手7右側的握把7G附近,割草離合器機構控制用的割草離合器鋼絲51是配備在割草離合器操縱把50和張緊臂49之間。割草離合器鋼絲51具有可將內鋼絲收容在外鋼絲之內部的構造,於割草離合器操縱把50連結有內鋼絲之一方的端部,於張緊臂49連結有內鋼絲之另一方的端部。As shown in Figs. 1 and 3, the mowing clutch operating handle 50 for operating the mowing clutch mechanism is disposed near the grip 7G on the right side of the operating handle 7, and the mowing clutch wire 51 for controlling the mowing clutch mechanism. It is equipped between the mowing clutch operating handle 50 and the tensioning arm 49. The mowing clutch wire 51 has a structure in which the inner wire can be housed inside the outer wire, and the mowing clutch operating handle 50 is connected to one end of the inner wire, and the tension arm 49 is connected to the other end of the inner wire. .
基於該構成,只要對割草離合器操縱把50進行握緊操作透過割草離合器鋼絲51就可使割草離合器機構輸入操作,因此引擎4的驅動力就會從驅動皮帶47傳至割草驅動機構Dc,實現路面用切斷裝置B和坡面用切斷裝置C的驅動。此外,當坡面用切斷裝置C達到沿著坡面之擺動姿勢時,不拘該擺動姿勢的角度只要利用2個接合機構43的彎折和中間傳動軸44的伸縮就可使引擎4的驅動力傳至坡面用切斷裝置C。According to this configuration, the mowing clutch mechanism can be input and operated by the mowing clutch wire 51 by the gripping operation of the mowing clutch operating handle 50, so that the driving force of the engine 4 is transmitted from the driving belt 47 to the mowing drive mechanism. Dc realizes driving of the road surface cutting device B and the slope cutting device C. Further, when the slope cutting device C reaches the swinging posture along the slope surface, the angle of the swinging posture can be driven by the bending of the two engaging mechanisms 43 and the expansion and contraction of the intermediate transmission shaft 44. The force is transmitted to the slope cutting device C.
中心齒輪箱40,是以下部箱40A對中心機殼11成上下貫通的姿勢配備有該下部箱,於該下部箱40A,支承有以縱向姿勢的中心驅動軸芯X為中心成旋轉自如的中心驅動軸55,於驅動軸42具備有第1中心圓錐齒輪56A,該第1中心圓錐齒輪56A配置成可使驅動軸42的驅動力傳至中心驅動軸55的上端,要咬合於該第1中心圓錐齒輪56A的第2中心圓錐齒輪56B配備在中心驅動軸55的上部。於該中心驅動軸55的下端固定設置著支撐板57,於該支撐板57的下面配置有捲附防止錐58的底壁部,於該捲附防止錐58底壁部的下側配置有2片重疊的中心刀刃12,藉由將貫通該等中心刀刃12上下的一對連結螺栓59鎖緊在支撐板57上所固定的螺帽57N,使中心刀刃12和捲附防止錐58支撐在支撐板57。The center gear case 40 is provided with the lower case 40A in a posture in which the center case 11 is vertically penetrated, and the lower case 40A supports a center that is rotatable about the center drive axis X in the vertical posture. The drive shaft 55 is provided with a first center bevel gear 56A on the drive shaft 42. The first center bevel gear 56A is disposed such that the driving force of the drive shaft 42 can be transmitted to the upper end of the center drive shaft 55 to be engaged with the first center. The second center bevel gear 56B of the bevel gear 56A is provided at an upper portion of the center drive shaft 55. A support plate 57 is fixed to the lower end of the center drive shaft 55, and a bottom wall portion of the attachment preventing cone 58 is disposed on the lower surface of the support plate 57, and a lower side of the bottom wall portion of the attachment preventing cone 58 is disposed. The center edge 12 of the sheet overlaps, and the center blade 12 and the winding prevention cone 58 are supported on the support by locking the nut 57N fixed to the support plate 57 by a pair of coupling bolts 59 that pass through the upper and lower blades 12 up and down. Board 57.
捲附防止錐58,是形成為上部外徑比下部外徑還大的杯狀,對形成在該捲附防止錐58之底壁部的2個貫通孔插通有連結螺栓59,對形成在2片中心刀刃12的2個貫通孔插通有連結螺栓59。此外,2片中心刀刃12當中,上側之中心刀刃12的外端是往上方曲折成位移,下側之中心刀刃12的外端是往下方曲折成位移。The wrap preventing cone 58 is formed in a cup shape in which the upper outer diameter is larger than the outer diameter of the lower portion, and the connecting bolts 59 are inserted into the two through holes formed in the bottom wall portion of the wrap preventing cone 58, and are formed in the pair. A coupling bolt 59 is inserted into the two through holes of the two center cutting edges 12. Further, among the two center cutting edges 12, the outer end of the upper center cutting edge 12 is bent to be displaced upward, and the outer end of the lower central cutting edge 12 is zigzag downward.
如上述具備有可從割草驅動機構Dc傳達有驅動力的中心驅動軸55和由該中心驅動軸55驅動的中心刀刃12就可構成路面用切斷裝置B。As described above, the center drive shaft 55 that can transmit the drive force from the mowing drive mechanism Dc and the center blade 12 that is driven by the center drive shaft 55 are provided to constitute the road surface cutting device B.
如第5圖~第9圖所示,側齒輪箱41,是以下部支撐箱41A對側機殼13成上下貫通的姿勢配置有該下部支撐箱41A,於該下部支撐箱41A配置有縱向姿勢的移位軸61,和,透過花鍵嵌合構造外嵌在該移位軸61下端部之筒狀的側驅動軸62,配置成該等與側驅動軸芯Y位於相同軸芯上。以受動軸45的驅動力能夠傳達至移位軸61之上端的形態,將第1側圓錐齒輪63A外嵌在受動軸45,要咬合於該第1側圓錐齒輪63A的第2側圓追齒輪63B配備成與側驅動軸芯Y位於相同軸芯上,藉由將該第2側圓錐齒輪63B透過花鍵嵌合構造外嵌在移位軸61的上端部,是能夠使第2側圓錐齒輪63B和移位軸61朝側驅動軸芯Y的方向相對性移動。As shown in FIGS. 5 to 9 , in the side gear case 41 , the lower support case 41A is disposed such that the lower side case 13 is vertically penetrated, and the lower support case 41A is disposed in the vertical position. The shift shaft 61 and the cylindrical side drive shaft 62 that is externally fitted to the lower end portion of the shift shaft 61 through the spline fitting structure are disposed such that the side drive shaft core Y is located on the same shaft core. The driving force of the driven shaft 45 can be transmitted to the upper end of the shift shaft 61, and the first side bevel gear 63A is fitted to the driven shaft 45 to be engaged with the second side round gear of the first side bevel gear 63A. The 63B is disposed on the same axis as the side drive shaft core Y, and the second side bevel gear 63B is externally fitted to the upper end portion of the shift shaft 61 through the spline fitting structure. The 63B and the shift shaft 61 are relatively moved in the direction of the side drive shaft core Y.
另,形成在移位軸61下部的外面和外嵌在該外面之筒狀側驅動軸62之內面的花鍵嵌合構造,是一種可使移位軸61和側驅動軸62一體性旋轉的同時,可使移位軸61和側驅動軸62朝側驅動軸芯Y的方向相對移動之傳動手段其中一個例子。該傳動手段,也可構成為是將移位軸61之下部和其所要內嵌之側驅動軸62之孔狀部份的剖面形狀形成為4角形等多角形狀,或是在移位軸61的外面和側驅動軸62的內面形成有姿勢為平行於側驅動軸芯Y的溝槽,具備有要卡入在該溝槽的鍵等藉此構成傳動手段。Further, a spline fitting structure formed on the outer surface of the lower portion of the shift shaft 61 and the inner surface of the cylindrical side drive shaft 62 which is externally fitted to the outer surface is a type in which the shift shaft 61 and the side drive shaft 62 are integrally rotated. At the same time, one of the transmission means for relatively moving the shift shaft 61 and the side drive shaft 62 in the direction of the side drive shaft core Y. The transmission means may be configured such that the cross-sectional shape of the lower portion of the shift shaft 61 and the hole-shaped portion of the side drive shaft 62 to be embedded therein is formed into a polygonal shape such as a square shape or the shift shaft 61. The inner surface of the outer and side drive shafts 62 is formed with a groove that is parallel to the side drive axis Y, and is provided with a key or the like to be engaged in the groove.
側驅動軸62,是由中間部份支撐用之滾珠軸承式的軸承64支撐成相對於下部支撐箱41A可旋轉自如,並 且,朝上下方向不能移動,於該側驅動軸62的下端部固定設置著支撐板57。於該支撐板57的下面配置有捲附防止錐58的底壁部,於該捲附防止錐58底壁部的下側配置有2片重疊的側刀刃14,再加上,於該側刀刃14的下側配置有上部板65,藉由將貫通該等側刀刃14上下的連結螺栓59鎖緊在支撐板57上所固定的螺帽57N,使側刀刃14和捲附防止錐58及上部板65支撐在支撐板57。The side drive shaft 62 is supported by a ball bearing type bearing 64 for supporting the intermediate portion so as to be rotatable relative to the lower support box 41A, and Further, the support plate 57 is fixed to the lower end portion of the side drive shaft 62 in the up-and-down direction. A bottom wall portion of the winding preventing cone 58 is disposed on the lower surface of the support plate 57, and two overlapping side cutting edges 14 are disposed on the lower side of the bottom wall portion of the winding preventing cone 58, and the side cutting edge is added to the side edge The lower side of the 14 is provided with an upper plate 65, and the side nut 14 and the wrap preventing cone 58 and the upper portion are fixed by a bolt 57N fixed to the support plate 57 by a connecting bolt 59 that penetrates the upper and lower blades 14 up and down. The plate 65 is supported on the support plate 57.
於上部板65以突出下部的姿勢形成有一對捲附防止片65A,於捲附防止片65A在側端形成有上下方向之中間位置的寬度為較小的凹狀部65B。A pair of wrapping preventing pieces 65A are formed in the upper plate 65 in a downwardly protruding posture, and the wrapping preventing piece 65A is formed with a concave portion 65B having a small width at the intermediate position in the vertical direction at the side end.
移位軸61的下端是從側驅動軸62的下端朝下方突出,於該下端以固定螺栓71固定有下部板70,於該下部板70的下側利用複數保持螺栓73連結有接地體72。另,該保持螺栓73是固定在接地體72,該保持螺栓73是以螺合在下部板70之上面側所配置的保持螺帽74達到鎖緊狀態。The lower end of the shift shaft 61 protrudes downward from the lower end of the side drive shaft 62. The lower plate 70 is fixed to the lower end by a fixing bolt 71, and the grounding body 72 is coupled to the lower side of the lower plate 70 by a plurality of retaining bolts 73. Further, the retaining bolt 73 is fixed to the grounding body 72, and the retaining bolt 73 is locked by the retaining nut 74 disposed on the upper surface side of the lower plate 70.
於下部板70,以朝上方突出的姿勢形成有一對捲附防止體70A,於捲附防止體70A形成有上下方向之中間位置的寬度為較小的凹狀部70B。將一對捲附防止片65A和一對捲附防止體70A的相對性關係設定成可使連接著該一對捲附防止體70A的直線,和,連接著形成在上部板65之一對捲附防止片65A的直線於平面視為正交,利用該等捲附防止體65A,70A就可構成為能夠防止草類等捲附在移位軸61。In the lower plate 70, a pair of wrap-preventing bodies 70A are formed in a posture that protrudes upward, and the wrap-preventing body 70A is formed with a concave portion 70B having a small width at an intermediate position in the vertical direction. The relative relationship between the pair of wrap-preventing sheets 65A and the pair of wrap-preventing bodies 70A is set so that a straight line connecting the pair of wrap-preventing preventing bodies 70A can be connected, and one of the upper plates 65 is connected to the roll The straight line with the preventing piece 65A is regarded as being orthogonal to the plane, and the wrapping preventing bodies 65A, 70A can be configured to prevent the grass or the like from being wound around the shift shaft 61.
此外,形成在一對捲附防止片65A的凹狀部65B,和,形成在一對捲附防止體70A的凹狀部70B是形成為不會妨礙到連結螺栓59的頭部或保持螺帽74操作用的扳手等工具的操作。Further, the concave portion 65B formed in the pair of attachment preventing pieces 65A, and the concave portion 70B formed in the pair of attachment preventing members 70A are formed so as not to obstruct the head or the holding nut of the coupling bolt 59. 74 operation of tools such as wrenches.
接地體72是平面視為圓形,愈中央部愈突出下方之碗狀的成型物,於割草作業時,是以該接地體72的中央部接觸坡面(地面),藉此定出坡面和側刀刃14的距離,因此能夠調整割草高度。另,接地體72是和移位軸61一體性旋轉,以接地狀態進行旋轉是可實現對坡面(地面)之順暢的滑動性。於側齒輪箱41的附近位置具備有要決定接地體72往下方之突出量用的側割草高度設定機構,該側割草高度設定機構的細部將於下述進行說明。The grounding body 72 is a bowl-shaped molded product whose plane is regarded as a circular shape and which is more convex toward the center portion. When the grass cutting operation is performed, the center portion of the grounding body 72 contacts the slope surface (ground), thereby determining the slope. The distance between the face and the side cutting edge 14 makes it possible to adjust the mowing height. Further, the grounding body 72 is integrally rotated with the shift shaft 61, and is rotated in a grounded state to achieve smooth slidability on the slope surface (ground). A side mowing height setting mechanism for determining the amount of protrusion of the grounding body 72 downward is provided in the vicinity of the side gear case 41, and the details of the side mowing height setting mechanism will be described below.
如第7圖、第8圖所示,與側驅動軸Y成平行姿勢的操作軸77,是以其上端比側齒輪箱41的上面還突出於上方的狀態配備在側齒輪箱41。於移位軸61的中央位置外圍形成有環狀溝槽部,於該環狀溝槽部具備有做為卡合構件透過軸承78A卡合的移位裝置78。於操作軸77的下端部形成有螺桿部77A,對螺桿部77A螺合移位裝置78的內螺紋部,就可使該移位裝置78的叉部份卡合在軸承78A。於操作軸77的上端具備有旋轉操作臂79,於該旋轉操作臂79的外端具備有調整把79A。如上述具備有操 作軸77和以螺桿式調整上下位置的移位裝置78就可構成有要調整移位軸61往下方之突出量用的調整部。As shown in FIGS. 7 and 8, the operation shaft 77 that is parallel to the side drive shaft Y is provided in the side gear case 41 in a state in which the upper end thereof protrudes upward from the upper surface of the side gear case 41. An annular groove portion is formed on the outer periphery of the shift shaft 61 at the center position, and the annular groove portion is provided with a shifting device 78 that is engaged with the engaging member through the bearing 78A. A screw portion 77A is formed at a lower end portion of the operation shaft 77, and a screw portion of the shifting device 78 is screwed to the screw portion 77A, so that the fork portion of the shifting device 78 can be engaged with the bearing 78A. A rotation operation arm 79 is provided at an upper end of the operation shaft 77, and an adjustment lever 79A is provided at an outer end of the rotation operation arm 79. As mentioned above The adjusting portion for adjusting the amount of protrusion of the shift shaft 61 downward can be formed by the shaft 77 and the shifting device 78 that adjusts the vertical position by the screw type.
基於上述構成,當操作者抓住調整把79A對操作軸77進行旋轉操作時,移位裝置78會朝上下任一方向動作,該動作會造成移位軸61上下動,改變接地體72和側刀刃14之上下方向的相對距離,因此就能夠實現割草高度的調整。Based on the above configuration, when the operator grasps the adjustment knob 79A to rotate the operation shaft 77, the shifting device 78 moves in either of the up and down directions, which causes the shift shaft 61 to move up and down, changing the grounding body 72 and the side. The relative distance between the upper and lower blades 14 allows the mower height to be adjusted.
當以坡面用切斷裝置C切斷草類時,坡面用切斷裝置C會因為自重的關係而以擺動軸芯P為中心往下降方向擺動,因此就能夠使接地體72維持接觸於坡面(地面)的狀態。以該接地體72的接地位置為基準,在側驅動軸芯Y的方向,接地體72的接地位置至有側刀刃14之旋轉軌跡存在的假想平面為止的距離就是割草高度,如上述所示只要操作者操作調整把79A調整接地體72的突出量,就能夠改變以接地體72與地面之接地位置為基準的側刀刃14之割草水平高度實現割草高度的調整。When the grass is cut by the cutting device C for the slope, the slope cutting device C swings in the downward direction about the swing axis P due to its own weight, so that the grounding body 72 can be kept in contact with the grounding body 72. The state of the slope (ground). Based on the grounding position of the grounding body 72, the distance from the grounding position of the grounding body 72 to the imaginary plane in which the rotational trajectory of the side cutting edge 14 exists in the direction of the side driving axis Y is the mowing height, as shown above. As long as the operator operates the adjustment 79A to adjust the amount of protrusion of the grounding body 72, the mowing height of the side cutting edge 14 based on the grounding position of the grounding body 72 and the ground can be changed to achieve the adjustment of the mowing height.
如第10圖、第11圖所示,於前輪傳動箱16的凸緣部固定設置有縱向姿勢的輔助板81,對該輔助板81支撐有卡合板82,於該卡合板82形成有以支撐軸芯Q為中心的圓弧面,於該圓弧面穿設有複數的卡合孔82A。於前部托座20,在卡合板82之圓弧面的卡合孔82A相向的位置固定設置有前後朝向姿勢的導筒83,對該導筒83支撐有 伸出退縮自如的插銷狀鎖定構件84。將該鎖定構件84朝卡合孔82A方向彈推成突出的鎖簧85是配備在導筒83的內部,於鎖定構件84,連結有要做為操作鋼絲可將該鎖定構件84往離開卡合孔82A之抽出方向操作的鎖定解除鋼絲86的一端。As shown in FIGS. 10 and 11, an auxiliary plate 81 in a longitudinal posture is fixed to the flange portion of the front wheel transmission case 16, and the auxiliary plate 81 is supported with an engaging plate 82, and the engaging plate 82 is formed to support The shaft core Q is a circular arc surface at the center, and a plurality of engaging holes 82A are bored in the arc surface. In the front bracket 20, a guide bush 83 having a front-rear posture is fixedly disposed at a position facing the engaging hole 82A of the arcuate surface of the engaging plate 82, and the guide bush 83 is supported by the guide bush 83. A retractable latch-like locking member 84 is extended. The lock spring 85 that is biased toward the engaging hole 82A to protrude is provided inside the guide bush 83. The lock member 84 is coupled to the wire to be able to move the lock member 84 away from the lock member 84. One end of the wire 86 is unlocked by the locking operation of the hole 82A.
於該構成,是以形成有複數卡合孔82A的卡合板82,和,可卡脫於該卡合板82之卡合孔82A(卡合部一例)的鎖定構件84(鎖定體一例),構成有能夠自由轉換前輪傳動箱16(支撐體一例)的擺動姿勢使該前輪傳動箱16的擺動姿勢為固定之固定狀態和容許自由擺動之解除狀態的轉換操作部F。In this configuration, the engagement plate 82 in which the plurality of engagement holes 82A are formed, and the lock member 84 (an example of the engagement portion) that can be engaged with the engagement hole 82A (an example of the engagement portion) of the engagement plate 82 are configured. There is a switching operation portion F that can freely switch the swinging posture of the front wheel transmission case 16 (an example of the supporting body) so that the swinging posture of the front wheel transmission case 16 is a fixed fixed state and a released state in which the free swing is allowed.
於操縱把手7左側之握把7G的附近,支撐有以軸體89為中心成上下擺動自如其操作形態為從上方往下方壓入操作的鎖定解除操縱桿88,對該鎖定解除操縱桿88連接有鎖定解除鋼絲86的另一方端部。以該鎖定解除操縱桿88和可將該鎖定解除操縱桿88的操作力傳至鎖定構件84的鎖定解除鋼絲86構成有要執行鎖定構件84從卡合板82之卡合孔82A分離之操作的操作單元。鎖定解除鋼絲86具有可將內鋼絲收容在外鋼絲之內部的構造,於鎖定解除操縱桿88連結有內鋼絲之一方的端部,於鎖定構件84連結有內鋼絲之另一方的端部。In the vicinity of the grip 7G on the left side of the manipulation handle 7, a lock release lever 88 that is pivoted up and down about the shaft body 89 and whose operation mode is pressed from above to the lower side is supported, and the lock release lever 88 is connected. There is a other end portion of the lock release wire 86. The lock release lever 88 and the lock release wire 86 that can transmit the operation force of the lock release lever 88 to the lock member 84 constitute an operation to perform the operation of the lock member 84 to be separated from the engagement hole 82A of the engaging plate 82. unit. The lock release wire 86 has a structure in which the inner wire can be housed inside the outer wire, and one end of the inner wire is coupled to the lock release lever 88, and the other end of the inner wire is coupled to the lock member 84.
如上述,以具備有卡合板82和可卡脫於該卡合板82之複數卡合孔82A的鎖定構件84及鎖簧85、鎖定解除鋼絲86、鎖定解除操縱桿88構成有中心割草高度調整機 構。As described above, the locking member 84 including the engaging plate 82 and the plurality of engaging holes 82A that can be detached from the engaging plate 82, the lock spring 85, the lock release wire 86, and the lock release lever 88 constitute a center mowing height adjustment. machine Structure.
前輪傳動箱16是以支撐軸芯Q為中心被支撐成能夠自由擺動,於卡合板82的卡合孔82A卡入有鎖定構件84的鎖定狀態,是可使前輪傳動箱16的擺動姿勢維持著。此外,於鎖定構件84從卡合板82的卡合孔82A抽出的鎖定解除狀態,前輪傳動箱16的自重會允許其前端側往下方移動。另,也可具備有要將前輪傳動箱16的前端側往下方彈推的輔助彈簧,藉此構成為能夠確實執行前端側往下方的移動。The front wheel transmission case 16 is supported so as to be swingable about the support shaft Q, and the locking hole 82A of the engaging plate 82 is locked with the locking member 84, so that the swinging posture of the front wheel transmission case 16 can be maintained. . Further, in the unlocked state in which the lock member 84 is withdrawn from the engagement hole 82A of the engagement plate 82, the weight of the front wheel transmission case 16 allows the front end side thereof to move downward. Further, an auxiliary spring that pushes the front end side of the front wheel transmission case 16 downward may be provided, so that the front end side can be surely moved downward.
基於該構成,操作者操作時只要將鎖定解除操縱桿88往下方壓入,就能夠設定成鎖定構件84從卡合板82的卡合孔82A抽出的鎖定解除狀態,於該狀態下操作者只要將操縱把手7往下壓方向操作,就能夠以後輪2的接地位置為支點使移動式機體A的前部抬起,前輪傳動箱16就會往其前端側下降的方向擺動。反之,於鎖定解除狀態下操作者若將操縱把手7往上抬方向操作,就能夠以後輪2的接地位置為支點使移動式機體A的前部下壓,前輪傳動箱16就會往其前端側上昇的方向擺動。即,對操縱把手7進行下壓或者上抬,是能夠任意設定中心刀刃12的對地高度,於該設定狀態下,只要解除鎖定解除操縱桿88的壓入操作,就能夠達到鎖定構件84利用鎖簧85之彈推力卡合在卡合孔82A的狀態,使中心刀刃12的對地高度成維持狀態實現割草高度的調整。According to this configuration, when the operator releases the lock release lever 88 downward, the lock release state of the lock member 84 from the engagement hole 82A of the engagement plate 82 can be set, and in this state, the operator only needs to When the steering handle 7 is operated in the downward pressing direction, the front portion of the movable body A can be lifted by the grounding position of the rear wheel 2 as a fulcrum, and the front wheel transmission case 16 is swung in the direction in which the front end side is lowered. On the other hand, in the unlocked state, if the operator operates the steering handle 7 in the upward direction, the front portion of the movable body A can be depressed by the grounding position of the rear wheel 2 as a fulcrum, and the front wheel transmission case 16 is directed to the front end side thereof. Swing in the direction of the rise. In other words, the lowering or lifting of the operating handle 7 allows the height of the center blade 12 to be arbitrarily set. In this setting state, the locking member 84 can be utilized by releasing the pressing operation of the unlocking lever 88. The spring force of the lock spring 85 is engaged with the engagement hole 82A, and the height of the center blade 12 is maintained to maintain the grass height.
對水平姿勢之路面和與該路面成傾斜姿勢之坡面的草類同時進行割草作業時,是將割草機的移動式機體A的前輪1和後輪2接地在路面,將側機殼13配置在坡面的上方,將該側機殼13設定成以擺動軸芯P為中心成擺動自如的狀態。於該狀態下,碗狀的接地體72的接地會使側機殼13達到與波面平行的姿勢。然後,利用割草離合器操縱把50使割草離合器機構輸入操作,利用行駛離合器操縱把33使行駛離合器機構27輸入操作開始進行作業,藉此就能夠以路面用切斷裝置B沿著路面的形態執行路面草類的割除,與此同時,碗狀的接地體72會以驅動旋轉的狀態接觸坡面因此就能夠以較低的阻力進行旋轉執行順暢的移動同時,能夠以坡面用切斷裝置C沿著坡面的形態執行坡面草類的割除。When mowing the grass with the horizontal posture and the grass with the slope in the inclined posture, the front wheel 1 and the rear wheel 2 of the mobile body A of the lawn mower are grounded on the road surface, and the side casing is placed. 13 is disposed above the slope surface, and the side casing 13 is set to be swingable about the swing shaft core P. In this state, the grounding of the bowl-shaped grounding body 72 causes the side casing 13 to reach a posture parallel to the wavefront. Then, the mowing clutch operating lever 50 is used to input the mowing clutch mechanism, and the running clutch mechanism 33 is used to input the operation of the running clutch mechanism 27, whereby the road cutting device B can be used along the road surface. At the same time, the bowl-shaped grounding body 72 is in contact with the slope surface in a state of driving rotation, so that it can be rotated with a low resistance to perform smooth movement, and the cutting device can be used as a slope surface. C performs the cutting of the grass on the slope along the shape of the slope.
在執行路面用切斷裝置B的割草高度調整時,只要用手指等對鎖定解除操縱桿88進行下壓操作就能夠從轉換操作部F之卡合板82的卡合孔82A抽出鎖定構件84解除鎖定。於該鎖定解除狀態下利用操縱把手7之下壓量的調整或者上抬量的調整,就能夠將中心刀刃12設定成目標的割草高度,基於鎖定解除操縱桿88之操作的解除,鎖定構件84會卡合於由鎖簧85之彈推力所設定之高度附近的卡合孔82A,因此前輪傳動箱16就會被鎖住藉此實現割草高度調整。When the mowing height adjustment of the road surface cutting device B is performed, the locking member 84 can be released from the engaging hole 82A of the engaging plate 82 of the switching operation portion F by pressing the lock release lever 88 with a finger or the like. locking. In the unlocked state, the center blade 12 can be set to the target mowing height by the adjustment of the amount of depression under the steering handle 7 or the adjustment of the amount of lift, and the locking member is released based on the operation of the lock release lever 88. The 84 is engaged with the engaging hole 82A near the height set by the elastic force of the lock spring 85, so that the front wheel transmission case 16 is locked to thereby realize the mowing height adjustment.
在執行坡面用切斷裝置C的割草高度調整時,操作者 只要抓住旋轉操作臂79的調整把79A進行旋轉操作,就能夠使移位軸61上下動作改變側刀刃14和接地體72的相對距離,藉此實現割草高度的調整。When the mowing height adjustment of the slope cutting device C is performed, the operator As long as the adjustment operation of the rotary operation arm 79 is performed, the rotation of the shift shaft 61 can be performed to change the relative distance between the side cutting edge 14 and the grounding body 72, thereby realizing the adjustment of the mowing height.
本發明除了上述之實施形態以外也可構成為如以下所述的構成。The present invention may be configured as described below in addition to the above-described embodiments.
(a)轉換操作部F,是以實施形態所示之卡合板的圓弧面所具備的複數插銷和具有孔部要卡合於該複數插銷的被卡合構件構成。即使轉換操作部F為上述構成,但只要利用插銷和孔部的卡合來改變前輪傳動箱16的擺動姿勢就能夠調整割草高度,同時還能夠牢固地保持著改變狀態。如上述所示構成時,也可將操作形態設定成是利用要做為操作單元的操作鋼絲等使被卡合構件從插銷分離。(a) The switching operation portion F is composed of a plurality of pins included in the arcuate surface of the engaging plate shown in the embodiment, and an engaged member having a hole portion to be engaged with the plurality of pins. Even if the switching operation portion F has the above configuration, the mowing height can be adjusted by changing the swing posture of the front wheel transmission case 16 by the engagement of the pin and the hole portion, and the changed state can be firmly maintained. When the configuration is as described above, the operation mode may be set such that the engaged member is separated from the pin by an operation wire or the like to be an operation unit.
(b)中心割草高度調整機構,是於卡合板82外圍的圓弧面形成有多數的凹凸,具備有鎖定構件84,該鎖定構件84形成有可卡脫於該多數凹凸的多數凹凸面,此外具備有可將該鎖定構件84往卡合板82之方向彈推的鎖簧85,又具備有可使鎖定構件84反抗鎖簧85的彈推力從卡合板82離開的操作鋼絲等。如上述構成的中心割草高度調整機構,其和實施形態所說明之以單一鎖定構件84卡脫於複數卡合孔82A的構成相比,是能夠以較小的角度設定前輪傳動箱16的擺動姿勢,能夠實現割草高度調整微妙的設定。(b) The center mowing height adjusting mechanism is formed with a plurality of irregularities on the arcuate surface of the outer periphery of the engaging plate 82, and includes a locking member 84 having a plurality of concave and convex surfaces that are engageable with the plurality of irregularities. Further, a lock spring 85 that can push the lock member 84 in the direction of the engagement plate 82 is provided, and an operation wire or the like that allows the lock member 84 to move away from the engagement plate 82 against the spring force of the lock spring 85 is provided. The center mowing height adjusting mechanism configured as described above is capable of setting the swing of the front wheel transmission case 16 at a smaller angle than the configuration in which the single locking member 84 is engaged with the plurality of engaging holes 82A as described in the embodiment. Posture, which enables subtle settings for mowing height adjustment.
(c)操作單元,是採用以桿材構成的連桿機構。即使操作單元為上述構成,但還是能夠從操縱把手7的部位執行轉換操作部F的轉換操作。(c) The operating unit is a link mechanism constructed of a rod. Even if the operation unit has the above configuration, the switching operation of the switching operation portion F can be performed from the portion where the handle 7 is manipulated.
(d)路面用切斷裝置B是應用要利用移位軸61之上下操作調整接地體72往下方之突出量的構成。如此一來,就能夠達到共同零件的利用,能夠以相同的操作形態執行複數之刀刃的割草高度度調整。(d) The road surface cutting device B is configured to adjust the amount of protrusion of the grounding body 72 downward by the operation of the shift shaft 61. In this way, the utilization of the common parts can be achieved, and the mowing height adjustment of the plurality of blades can be performed in the same operation mode.
(e)坡面用切斷裝置C,是於具備有複數側刀刃14的構成中,在複數側刀刃14當中的1個側刀刃14具備有接地體72,以執行該接地體72之上下的位置調整來構成割草高度調整機構。如上述即使坡面用切斷裝置C具備有複數側刀刃14,利用調整1個接地體72往下方之突出量的構成還是能夠實施割草高度調整。(e) The slope cutting device C is configured to include the plurality of side blades 14, and one of the plurality of side blades 14 is provided with a grounding body 72 to execute the grounding body 72. The position is adjusted to form a mowing height adjustment mechanism. As described above, even if the slope cutting device C includes the plurality of side blades 14, the grass height adjustment can be performed by adjusting the amount of protrusion of the one grounding body 72 downward.
(f)如第12圖所示,將移位軸61的上端設置成從第2側圓錐齒輪63B往上方突出。其構成具備有移位裝置78,該移位裝置78是做為卡合構件卡合於該移位軸61之上端部外圍所形成的環狀溝槽部,為了使該移位裝置78沿著側驅動軸芯Y移動,是於形成在操作軸77的螺桿部77A螺合移位裝置78的內螺紋部藉此構成調整部。即使為上述的構成,但操作者只要抓住調整把79A對操作軸77進行旋轉操作,就能夠使移位裝置78朝上下任一方向動作,該動作會造成移位軸61上下動,改變接地體72和側刀刃14之上下方向的相對距離,因此就能夠實現割草高度的調整。(f) As shown in Fig. 12, the upper end of the shift shaft 61 is provided to protrude upward from the second side bevel gear 63B. The shifting device 78 is provided with a shifting device 78 that is an annular groove formed by the engaging member being engaged with the outer periphery of the upper end of the shifting shaft 61, in order to move the shifting device 78 along The side drive shaft core Y moves to form an adjustment portion by screwing the internal thread portion of the screw unit 77A of the operation shaft 77 to the screw unit 78. Even in the above configuration, the operator can move the shifting device 78 in either of the upper and lower directions by grasping the adjustment knob 79A to rotate the operation shaft 77. This operation causes the shifting shaft 61 to move up and down, and the grounding is changed. The relative distance between the body 72 and the side cutting edge 14 in the upper and lower directions enables the adjustment of the mowing height to be achieved.
特別是,針對該其他的實施形態(f),也可採用是將第2側圓錐齒輪63B和側驅動軸62一體成型為筒狀,對該筒狀體的內面以花鍵嵌合移位軸61的構成,採用上述構成時,加長側驅動軸62的尺寸也可達到強度的提昇。In particular, in the other embodiment (f), the second side bevel gear 63B and the side drive shaft 62 may be integrally formed into a tubular shape, and the inner surface of the cylindrical body may be spline-shifted. When the configuration of the shaft 61 is the above configuration, the size of the extension side drive shaft 62 can also be increased.
本發明是能夠利用在割草機。The present invention is capable of utilizing in a lawn mower.
1、2‧‧‧車輪(前輪、後輪)1, 2‧‧‧ wheels (front and rear wheels)
4‧‧‧原動部(引擎)4‧‧‧The original part (engine)
7‧‧‧把手(操縱把手)7‧‧‧Handle (manipulation handle)
12‧‧‧割刃(中心刀刃)12‧‧‧ cutting edge (central blade)
13‧‧‧機殼(側機殼)13‧‧‧Machine case (side case)
14‧‧‧割刃(側刀刃)14‧‧‧ cutting edge (side blade)
16‧‧‧支撐體暨傳動箱(前輪傳動箱)16‧‧‧Support body and gearbox (front wheel gearbox)
41A‧‧‧機殼(下部齒輪箱)41A‧‧‧Chassis (lower gearbox)
61‧‧‧移位軸61‧‧‧Shift shaft
62‧‧‧驅動軸(側驅動軸)62‧‧‧Drive shaft (side drive shaft)
72‧‧‧接地體72‧‧‧ Grounding body
77‧‧‧操作軸77‧‧‧Operating shaft
77A‧‧‧螺桿部77A‧‧‧ Screw Department
78‧‧‧卡合構件(移位裝置)78‧‧‧ engaging members (shifting device)
82‧‧‧卡合板82‧‧‧Plywood
82A‧‧‧卡合部暨卡合孔82A‧‧‧Cabinet and Snap Hole
84‧‧‧鎖定體暨鎖定構件84‧‧‧Locking body and locking member
85‧‧‧鎖簧85‧‧‧Lock spring
86‧‧‧操作鋼絲(鎖定解除鋼絲)86‧‧‧Operating wire (locking wire)
88‧‧‧鎖定解除操縱桿88‧‧‧Lock release lever
A‧‧‧機體(移動式機體)A‧‧‧body (mobile body)
Dc‧‧‧傳動機構(割草驅動機構)Dc‧‧‧Transmission mechanism (mower drive mechanism)
F‧‧‧轉換操作部F‧‧‧Transition Operation Department
P‧‧‧擺動軸芯P‧‧‧Swing core
Q‧‧‧支撐軸芯Q‧‧‧Support core
X‧‧‧驅動軸芯(中心驅動軸芯)X‧‧‧ drive shaft core (central drive shaft core)
Y‧‧‧驅動軸芯(側驅動軸芯)Y‧‧‧ drive shaft core (side drive shaft core)
第1圖為割草機的全體側面圖。Figure 1 is a full side view of the lawn mower.
第2圖為割草機的全體平面圖。Figure 2 is a general plan view of the lawn mower.
第3圖為割草機的傳動系統側面圖。Figure 3 is a side view of the drive system of the lawn mower.
第4圖為表示路面用切斷裝置和坡面用切斷裝置的平面圖。Fig. 4 is a plan view showing a cutting device for a road surface and a cutting device for a slope surface.
第5圖為表示路面用切斷裝置和坡面用切斷裝置之傳動構造的剖面圖。Fig. 5 is a cross-sectional view showing a transmission structure of a road surface cutting device and a slope cutting device.
第6圖為表示作業狀態之路面用切斷裝置和坡面用切斷裝置的剖面圖。Fig. 6 is a cross-sectional view showing the road surface cutting device and the slope surface cutting device in an operation state.
第7圖為表示側割草高度調整機構之構成的剖面圖。Fig. 7 is a cross-sectional view showing the configuration of a side mowing height adjusting mechanism.
第8圖為移位軸和移位裝置和操作軸的橫剖面圖。Figure 8 is a cross-sectional view of the shifting shaft and the shifting device and the operating shaft.
第9圖為接地體之連結構造的分解透視圖。Fig. 9 is an exploded perspective view showing the connection structure of the grounding body.
第10圖為表示中心割草高度調整機構之構成的側面圖。Fig. 10 is a side view showing the configuration of a center mowing height adjusting mechanism.
第11圖為表示中心割草高度調整機構之轉換操作部的剖面圖。Fig. 11 is a cross-sectional view showing a switching operation portion of the center mowing height adjusting mechanism.
第12圖為表示另一實施形態(f)之側割草高度調整機構之構成的剖面圖。Fig. 12 is a cross-sectional view showing the configuration of a side mowing height adjusting mechanism of another embodiment (f).
1‧‧‧車輪(前輪)1‧‧‧ Wheels (front wheel)
7‧‧‧把手(操縱把手)7‧‧‧Handle (manipulation handle)
7G‧‧‧握把7G‧‧‧ grip
10‧‧‧機體框架10‧‧‧ body frame
11‧‧‧中心機殼11‧‧‧ center housing
12‧‧‧割刃(中心刀刃)12‧‧‧ cutting edge (central blade)
16‧‧‧支撐體暨傳動箱(前輪傳動箱)16‧‧‧Support body and gearbox (front wheel gearbox)
18‧‧‧輸入軸18‧‧‧ input shaft
19‧‧‧前輪驅動軸19‧‧‧Front wheel drive shaft
20‧‧‧前部托座20‧‧‧ front bracket
33‧‧‧行駛離合器操縱把33‧‧‧Driving clutch handle
34‧‧‧行駛離合器鋼絲34‧‧‧Travel clutch wire
81‧‧‧輔助板81‧‧‧Auxiliary board
82‧‧‧卡合板82‧‧‧Plywood
82A‧‧‧卡合部暨卡合孔82A‧‧‧Cabinet and Snap Hole
83‧‧‧導筒83‧‧‧Guide
84‧‧‧鎖定體暨鎖定構件84‧‧‧Locking body and locking member
85‧‧‧鎖簧85‧‧‧Lock spring
86‧‧‧操作鋼絲(鎖定解除鋼絲)86‧‧‧Operating wire (locking wire)
88‧‧‧鎖定解除操縱桿88‧‧‧Lock release lever
89‧‧‧軸體89‧‧‧Axis
F‧‧‧轉換操作部F‧‧‧Transition Operation Department
Q‧‧‧支撐軸芯Q‧‧‧Support core
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011215367A JP5896672B2 (en) | 2011-09-29 | 2011-09-29 | Mower |
JP2011215366A JP5706287B2 (en) | 2011-09-29 | 2011-09-29 | Mower |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201313115A TW201313115A (en) | 2013-04-01 |
TWI474775B true TWI474775B (en) | 2015-03-01 |
Family
ID=48437105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW101106019A TWI474775B (en) | 2011-09-29 | 2012-02-23 | Walk-behind mower |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR101518102B1 (en) |
TW (1) | TWI474775B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7251805B2 (en) * | 2020-09-24 | 2023-04-04 | 三笠産業株式会社 | Lock switching mechanism for rotary operation handle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5144639U (en) * | 1974-09-30 | 1976-04-02 | ||
JPH11137045A (en) * | 1997-11-12 | 1999-05-25 | Kioritz Corp | Control system for height of farm machine from ground |
JP2005137272A (en) * | 2003-11-06 | 2005-06-02 | Kubota Corp | Walking type mower |
JP2010273584A (en) * | 2009-05-27 | 2010-12-09 | Kubota Corp | Grass mower |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3786006B2 (en) | 2001-12-20 | 2006-06-14 | 井関農機株式会社 | Mobile farm machine |
-
2012
- 2012-02-23 TW TW101106019A patent/TWI474775B/en active
- 2012-02-28 KR KR1020120020434A patent/KR101518102B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5144639U (en) * | 1974-09-30 | 1976-04-02 | ||
JPH11137045A (en) * | 1997-11-12 | 1999-05-25 | Kioritz Corp | Control system for height of farm machine from ground |
JP2005137272A (en) * | 2003-11-06 | 2005-06-02 | Kubota Corp | Walking type mower |
JP2010273584A (en) * | 2009-05-27 | 2010-12-09 | Kubota Corp | Grass mower |
Also Published As
Publication number | Publication date |
---|---|
KR101518102B1 (en) | 2015-05-06 |
KR20130035161A (en) | 2013-04-08 |
TW201313115A (en) | 2013-04-01 |
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