自走式草坪修剪机的设计说明书.doc

自走式草坪修剪机设计-含PPT【包含10张CAD图纸和文档资料】

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自走式草坪修剪机的设计 英文文献学 院: 专业年级: 学生姓名: 学 号: 设计(论 文)题目: 自走式草坪修剪机的设计 指 导 教 师: 教研室负责人: Grass mower improvementOtis JonesPatent Number: 4,907,403 Date of Patent: Mar. 13, 1990ABSTRACTAn improved grass mower and attachment which employs a sling for holding a disposable bag is disclosed. The sling is open to one side so that full bags can be unloaded without lifting. The sling is mounted to a frame which receives the margin of the bag and this frame is mounted so that it can both pivot downward(when unlatched) and slide rearward relative to a housing from which clippings are delivered to the bag during grass cutting. When the bag is desired to be unloaded, the frame is unlatched and the sling, which is otherwise held above the ground, pivots its open side down to the ground: The housing can slide from over the frame by advancing the mower. The filled bag can be then tied and rolled out of the sling onto the ground without lifting it. A new bag can be fitted to the frame, inside the sling, and the lightweight frame, sling and empty bag returned and relatched under the housing and the mower used to fill the new bag.Keywords: improved ,sling,grass mowerFIELD OFTHE INVENTION The present invention is directed to a new and improved grass mower attachment and is especially concerned with such an improved attachment for a mower which attachment mounts plastic and the like disposable bags to the mower, so as to receive and hold grass clippings generated by the mower during use.BACKGROUND OF THE INVENTION Lawn mowers, and especially powered lawn mowers, are often equipped with attachments including compartments or bags for receiving and storing grass clippings and the like which are propelled out of the operating mower.U.S.Pat.Nos.4,522,019;4,158,280;3,006,128;and2,955,404showexamples of such mower attachments.It has also been recognized that it is desirable to store the clippings, etc. in disposable plastic and like bags. See, for example, U.S. Pat. Nos. 4,095,398, 3,199,277and the Snapper brand Pac-N-Sac Catcher Owner Manual No. 1-5410 (3/86) published by Snapper Power Equipment, McDonough, Georgia, 30253.Such prior art mower attachments for use with plastic bags, while generally effective, have suffered from some drawbacks. They are difficult to load with a new bag and often require disassembly of parts from the mower. And they provide even more difficulties when it comes to unloading a full and often heavy plastic bag which is filled with grass clippings and the like.SUMMARY OF THE INVENTIONThe present invention comprises a sling-like holder for the disposable bag, which sling is open to one horizontal direction, such as the rear of a lawn mower. The bag is-held in the sling above the ground in normal use and filled by clippings propelled from the mower to its upward opening mouth. When it is desired to remove a full or partly filled bag, the mounting for the sling and bag is released so that the bottom of the sling drops to the ground and the bag (preferably after its month has been tied closed) may be rolled out (e.g., to the rear) and need not be lifted at all. By choosing an appropriate spot (e. g. a homeowners garbage pickup area) at which to unroll the full bag, it may not need to be lifted at all by the user.When the bag is free of the sling, an empty bag maybe re-secured in the sling and the sling holder raised up and latched in its operational position to collect more clippings from the mower as it is used again to mow a lawn.The invention, together with the advantages there of, may best be understood by reference to the following description taken in connection with the accompanying drawings, in the several figures of which like reference numerals identify like elements.BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a perspective view of a mower including an attachment constructed in accordance with the present invention, illustrating a filled plastic bag being unloaded;FIG. 2 is a detailed perspective view of a portion of the mower and attachment of FIG.1, with parts broken away to show interior parts; and FIGS. 3-8 are partial side elevation views of part of the mower and attachment (with parts broken away),illustrating successive steps in the unloading process and reloading process, all in accordance with the present invention.DETAILED DESCRIPTION OF THEPREFERRED EMBODIMENTReferring to FIG: 1, there is depicted a mower and a trart,*r,ent which is constructed in accordance with the principles of the present invention and is generally designated by the number 10. The mower and attachment10 includes a more-or-less conventional powered rotary mower 12. The mower 12 has a side exit port area 14from which clippings are expelled when the mower is in operation. The mower 12 moves on the ground on four conventional wheels 12W and has a hand 12H of an inverted U shape. The mower 12 may be entirely conventional and thus need not be described in detail here.Although we have illustrated the invention with a powered rotary mower, it may equally be used with most types of mowers in common use and may be easily adapted to any known hand-guided or rider mower.In accordance with the present invention, connected to the exit area 14 of the mower 12 is a tubular guide 16which guides propelled air and clippings from the exit 14 to an elevated position 18, whereat the guide 16opens into a baffle housing 20.The housing 20 is mounted securely to the handle12H by conventional means such as a strap 20S and clips20C. As these mounts may be entirely conventional and well within the skill of the worker in this field, we do not detail them here. Any conventional mounts may be used so long as they securely hold the housing 20 to the handle 12H. The housing 20, as better shown in FIG.2, defines a first volume 22 which receives the propelled air and clippings from the tube 16 and is open to the bottom. An internal wall 23 divides the housing 20 and separates the volume 22 from a second volume 24, also open to the bottom.In use, air and entailed clippings are propelled into the volume 22 from the tube 16. The clippings and air exit volume 22 from its bottom. As will be explained more below, in use, the air and clippings thereafter enter the mouth of a disposable plastic bag, and the clippings being heavier than air tend to stay in the bag. The air exits out of a portion of the mouth of the bag under the volume 24 and the air enters that volume and exits downward through an opening 25 covered by a screen 26. This opening 25 is at the forward end of the housing 20 and thus the air and any items which may be propelled with it and make it past the baffle and screen26 are propelled away from the user, who, of course, stands and walks behind the handle 12H during use of the mower 12 to cut grass.In accordance with a principal feature of the present invention, a bag mounting apparatus 30 is provided. The bag mounting apparatus 30 includes a generally rectangular frame 32 over the marginal opening portion40M of a disposable plastic bag 40 or 40. The frame 32 is mounted to the housing 20 by means of a pivotable mounting 56, 56 at its forward end. This mounting includes a rod 57 which is welded or otherwise secured to a plate 58, which is in turn secured to the front member 32F of the frame 32 as shown in FIG.2. A pair of torsion springs 59, 59 serve to urge the frame 32 to pivot upward and to counter somewhat the tendency of gravity to pivot the frame downward about the rod 57.The opposite ends of the rod 57 are received for rotation in depending slide members 60, 60 which are each mounted for front to back sliding (on rods such as the rod 62, FIG. 2, mounted at the sides of the housing20 to said housing and preferably covered by a shirt member 64). This sliding mounting allows the frame 32to move between the position shown in FIG. 2, wherein it is aligned under the two volumes 22, 24 (but not under the screen 26 and in substantially airtight contact with the housing along at least the frames rear and sides), to the position shown in FIGS. 1, 4, 5, 6 and 7, where it is exposed and accessible at the rear of the housing 20.As mentioned above, the springs 59, 59 are strong enough to approximately counter the weight of the frame 32, sling 50, and empty bag 40 or 40. However, a loaded bag in the sling 50 and frame 32 will cause the frame 32 to pivot downward (as shown in FIGS. 4 to .To prevent this happening prematurely and to hold the slide members 60, 60 in their forward operational position (FIGS. 2, 3 and 8), a manually-operable latch 70 is provided at the rear of the housing 20. This latch 70serves to releasably captivate the handle 54 when the frame 32 is aligned under the housing 20 (as shown best in FIGS. 2, 3 and 8). When in this alignment the frame and bag open upwardly with the frame delivering the mouth or opening of the bag to the bottom of volumes22 and 24. The frame 32 also serves to mount a sling 50which in accordance with the present invention is open at one side or horizontal direction. This open side is, as best shown in FIG. 1, preferably the rearward side.The sling 50 is preferably made primarily of flexible but non-elastic material such as heavy canvas, although it may be of other material such as nylon netting and may in some applications be made of even more rigid materials. The rear side opening is preferably defined by and reinforced by a generally inverted U-shaped aluminum tubing frame 52 (FIG. 1) secured to the rear corners of the frame 32 and which also serves to mount a rearward handle 54. The ends of the handle 54 are pivotally mounted to the frame 52. The handle 54 aids in securing and releasing the frame 32 and sling 50 to the housing 20, as will be explained below.The frame 52 is secured to the sling in any convenient manner such as by having the canvas sling sewn into a conformingly sized and shaped sleeve and passing the frame 52 through that sleeve.While any latch mechanism will work so long as it is strong enough to hold up under a loaded bag in the sling50, a spring latch mechanism such as shown in FIGS. 1and 3-8 is preferred. (By pushing down the top 70H of the latch 70, the bottom catch 70C is lowered and allows the handle 54 to leave or enter. The handle 54 is pivotally mounted to move over a small angle. A spring mechanism pushes the top 70H and catch 70C upward to hold the handle 54 and thus to hold the frame 32against the underside of the housing 20.)As mentioned above, when the mower is in use, the framework is latched forward and up against the housing ZO with the marginal portions 40M of the mouth of the bag 40 over the upper edge of the frame 32 as shown in FIG. 3. While in use and cutting grass, the mower 12propels air and clippings through the guide 16 into the first chamber or volume 22 of the housing. The only exit from that volume is downward and into the mouth of the bag 40. The air flow is reversed in the bag to flow upward to the second chamber or volume 24 of the housing 20 and thence downward through the screen 26and downward and out the hood formed by members60, 60 and the vertical rear wall between them. The clippings accumulate in the bag 40 and when that bag is loaded, the user will wish to change bags.Unloading a Full BagThis is accomplished (preferably when the mower 10is at a place where the filled bags are to be left) by the following steps. The top 70H of the latch mechanism is pushed downward. This moves the catch 70C (FIG. 1)downward and allows the handle 54 to leave the catch70C and the sling 50, to move down so that its bottom hits the ground. The bottom of the side opening of the sling 50 is also moved to or nearer the ground. At this point, the mower can be moved forward (FIG. 5) to expose the entire frame 32 and bag margin 40M to the user standing behind the mower and attachment 10.The bag margin 40M is preferably tied at this point(FIG. 5) and the bag pushed backward under the frame32 and out of the rear opening of the sling 50 (FIGS. 1and 6). As the bottom of the side opening is almost ground level it presents no obstacle to the bag 40 and the weight of the filled bag (or slight downward pressure on the handle 54 by the user) moves the bottom of the tubing frame 52. The user may easily roll the full bag40 backward so that it is substantially out of the sling 50(FIG. 6) and then advance the mower and attachment10 so that the sling 50 is free of the bag 40.The tubular frame 52 serves to define the side opening from the sling and also serves to keep up the frame32 and permit it from pivoting too far in the downward direction where it might interfere with the removal of the bag 40.Reloading A BagWhen the empty sling 50 is free of the old bag 40, the frame 32 and sling 50 are returned (by the springs 59,59) to approximately the position shown in FIG. 7 and a new bag 40 may be installed. The frame 32, sling 50,and new bag 40 are then slid forward under the housing20 and the latch 70 used to again latch the handle 54(FIG. 8).It should now be appreciated that an easily used apparatus and method for unloading and loading disposable bags from a lawn mower has been described and depicted. The changeable bags are preferably plastic and sized to fill the sling 50.A prototype of the invention has been constructed, tested and shown to work well. This prototype used a frame 32 of about 16 inches by I6 inches in overall size and a sling of about 14 inches by 16 inches by 24 inches. Standard disposable plastic bags of 30 gallon size (2 feet6 inches X 2 feet 10 inches X 1.3 mil) were used in this sling and worked well. The housing 20 was constructed of lightweight foam plastic in the prototype but thin wall plastic or lightweight metal is presently preferred. The prototype was installed on a lawn mower made by Sears Craftsman, Model Number 13197330, and worked well. While one particular embodiment of the invention has been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from the invention, and, therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of the invention. claim1. In combination with a lawn mower of the type which is designed to be moved over the ground and wherein clippings are propelled through an exit port, a disposable bag mounting apparatus coupled to receive the clippings propelled from the exit port and hold a disposable bag, comprising:Means coupled to the exit port for guiding the clippings to an elevated position on the mower; a sling sized and shaped for receiving the disposable bag, said sling having an upper area defining an upward facing opening and a bottom portion and said sling being substantially open to one horizontal direction when in its operational position and in its unloading position so that a filled disposable bag may be moved out of said sling in that direction and through said open side;Means for releasably securing the disposable bag with its open end positioned in an upwardly opening configuration at said upward facing opening of the upper area of said sling with the disposable bags main closed body depending downward in said sling;Means for mounting said sling and the disposable bag therein in an operational position to said mower wherein the open end of the bag is under said elevated position so as to receive clippings propelled by the mower during operation through the exit port to said elevated position into said disposable bag in said sling, wherein the clippings are collected and held, said means for mounting said sling also supporting said sling when in this operational position such that the bottom of said sling clears the ground in normal use, said mounting mean further allowing the bottom of said sling to be selectively lowered to the ground to assume an unloading position such that the disposable bag may be unloaded there from by rolling it out of the substantially open horizontal direction of said sling, and wherein thereafter said sling may be returned to its operational position.2. The combination of claim 1, wherein said sling is made of a flexible but strong and substantially inelastic material and encloses a bag mounted therein on all sides except for the substantially open horizontal direction side.3. The combination of claim 2 wherein said sling open side has a bottom edge to said horizontal opening which edge is held a short distance above ground when the sling is mounted in an operational position, but is lowered to approximately the ground level when in the unloading position.4. The combination of claim 1 wherein said bag mounting apparatus further includes a baffle housing having a front, said housing being mounted to the mower at said elevated position and receiving the clippings from said guiding means, said baffle housing being opento the bottom and to said sling and the open end of said bag when in said operational position, said housing being so constructed as to cause flow from said guide means down into the bag opening and upward from said bag opening to an exit from said housing at the front of said housing, said exit directing flow downward from the housing, whereby clippings tend to accumulate in the bag during operation of the mower, and the flow which does not so accumulate is directed forward of the housing, and wherein said sling is made of a flexible but strong and substantially inelastic material and encloses a bag mounted therein on all sides except for the substantially open horizontal direction side.5. The combination of claim 4, wherein said mounting means for said sling and releasably securing means for said bag includes a generally horizontal open frame over which the margin of the bag may be folded which frame is pivotally mounted at the side opposite the open side of said sling whereby the sling may be lowered to the ground by pivoting downward the frame.6. The combination of claim 4, wherein: said frame pivotally mounted is slid able in a horizontal direction for a short distance, whereby the frame can be moved relative to said housing between a position wherein it is substantially under said housing to a position wherein it is substantially aside said housing and accessible for securing and removing a bag from said frame.7. The combination of claim 6, wherein said mounting means includes a manually releasable latch for securing said frame under said housing.8. In combination with a lawn mower of the type which is designed to be moved over the ground and wherein clippings are propelled through an exit port, a disposable bag mounting apparatus coupled to receive the clippings propelled from the exit port and hold a disposable bag, comprising: Means coupled to the exit port for guiding the clip pings to an elevated position on the mower; a sling sized and shaped for receiving the disposable bag, said sling having an upper area defining an upward facing opening and a bottom portion and said sling being substantially open to one horizontal direction when in its operational position and in its unloading position so that a filled disposable bag may be moved out of said sling in that direction and through said open side; means for releasably securing the disposable bag with its open end positioned in an upwardly opening configuration at said upward facing opening of the upper area of said sling with the disposable bags main closed body depending downward in said sling;Means for mounting said sling and the disposable bag therein in an operational position to said mower wherein the open end of the bag is under said elevated position so as to receive clippings propelled by the mower during operation through the exit port to said elevated position into said disposable bag in said sling, wherein the clippings are collected and held, said means for mounting said slin also supporting said sling when in this operational position such that the bottom of said sling clears the ground in normal use, said mounting means further allowing the bottom of said sling to be selectively lowered to the ground to assume an unloading position such that the disposable bag may be unloaded there from by rolling it out of the substantially open horizontal direction of said sling, and wherein thereafter said sling may be returned to its operational position.Wherein said bag mounting apparatus further includes a baffle housing having a front, said housing being mounted to the mower at said elevated position and receiving the clippings from said guiding means, said baffle housing being open to the bottom and to said sling and the open end of said bag when in said operational position, said housing being so constructed as to cause flow from said guide means down into the bag opening and upward from said bag opening to an exit from said housing at the front of said housing, said exit directing flow downward from the housing, whereby clippings tend to accumulate in the bag during operation of the mower, and the flow which does not so accumulate is directed forward of the housing, and wherein said sling is made of a flexible but strong and substantially inelastic material and encloses a bag mounted therein on all sides except for the substantially open horizontal direction side; wherein said frame pivotally mounted is slid able in a horizontal direction for a short distance, whereby the frame can be moved relative to said housing between a position wherein it is substantially under said housing to a position wherein it is substantially aside said housing and accessible for securing and removing a bag from said frame; wherein said mounting means includes a normally releasable latch for securing said frame under said housing; and wherein said frame is mechanically biased to pivot upward. 9. The combination of claim 7 wherein said opening of said sling is defined by a ridged opening-defining frame.10. Apparatus for retrofitting to a lawn mower of the type which is designed to be moved over the ground and wherein clippings are propelled through an exit port, said apparatus serving to receive a disposable bag mounting, comprising: Means couplable to the exit port area for guiding the clippings to an elevated position on the mower; a sling sized and shaped for receiving the disposable bag, said sling having an upper area defining an upward facing opening and a bottom portion and said sling being substantially open to one horizontal direction when in its operational position and in its unloading position so that a filled disposable bag may be moved out of said sling in that direction and through said open side; Means for releasably securing the disposable bag with its open end positioned in an upwardly opening configuration at said upward facing opening of the upper area of said sling with the disposable bags main closed body depending downward in said sling; Means for mounting said sling and the disposable bag therein in an operational position to said mower wherein the open end of the bag is under said elevated position so as to receive clippings propelled by the mower during operation through the exit port to said elevated position into said disposable bag in said sling, wherein the clippings are collected and held, said means for mounting said sling also supporting said sling when in this operational position such that the bottom of said sling clears the ground in normal use, said mounting means further allowing the bottom of said sling to be selectively lowered to the ground to assume an unloading position such that the disposable bag may be unloaded therefore by rolling it out of the substantially open horizontal direction of said sling, and wherein thereafter said sling may be returned to its operational position.11. The apparatus of claim 10, wherein said mounting means for said sling and bag includes mechanical bias means for urging the sling and bag upward when in its lowered unloading position toward its operational position.剪草机的改进奥蒂斯琼斯 专利号:4907403专利日期:1990.3.13摘要本发明公开了一种采用吊索固定垃圾袋的剪草机。吊索的一面是开放,使全袋可无需提起而被卸载。吊索被安装在车架的集草袋的边缘,使其既可以向下转动(虚掩时)也可从相对于外壳向后滑动当将剪草传递到袋子时。当袋期望被卸载时,框架是虚掩和吊着的,这就是在地面以上,枢轴开口侧倒在地上。该外壳可以从以上的框架通过推进剪草机滑动。集草袋可以绑在一起,并可以直接将其推出去丢地上。一个新的袋子可以装到轻量级框架,在吊索内侧,装好后吊索和空袋退回,在剪草机下次锁存用于填充新袋。关键词:改进,吊索,剪草技术领域的发明本发明涉及一种新的和改进的剪草机的附件,特别关注这样一种改进的装入一次性塑料袋,以便接收和保持在使用过程中产生的草屑的剪草机。发明背景草坪剪草机,特别是动力草坪剪草机,配备的附件通常包括用于接收和存储草屑的隔间或袋等。美国专利编号4522019,4158280,3006128,是这样的剪草机附件2955404例子。它被认为是理想的储存草屑,一次性塑料袋等。看,例如,美国专利号4095398,3199277和甲鱼品牌pac-n-sac捕手的拥有者一年一度的第1-5410(386)的鲷鱼电力设备,麦克唐纳,格鲁吉亚出版,30253公布。这种现有技术的剪草机附件与塑料袋的使用,而普遍的存在一些缺点。它们很难再次装入一个新的袋,并且通常需要从剪草机的零件上拆卸。当谈到卸载一个完整的塑料袋时他们将会更加困难,因为往往塑料袋里面装满了草屑。发明内容本发明包括一种像拿着一次性袋的人的吊索,其吊索的一个水平方向是开放的,例如剪草机的后部。在以上正常使用地面的吊索可以完成从割草机的向上开口的草屑对集草袋的填充。当需要卸载一个完整的或部分填充袋,释放安装的吊索和袋,使吊索的底部下降到地面则袋(它的嘴已经被扎封)可推出,并且不需要解除所有。当吊索上是空袋子,则可以重新把吊索架抬起将空袋子固定在吊具和锁定在工作位置收集草屑,用于再次使用剪草机修剪草坪。本发明,连同其优越性,最好是通过参考下面结合附图去理解。在几个附图中,其中同样的附图标记标识相同的元件。附图的简要说明图1是一个剪草机,包括根据本发明构造的一个附件,示出了填充塑料袋被卸载的透视图;图2是该剪草机和连接图的一部分的详细透视图,部分剖开以显示内部部件;图3-8的剪草机和附件(部分剖开)的一部分的局部的侧视图,示出在卸货过程中和重装过程中的连续步骤,所有的图都是按照本发明所绘。具体实施方式的详细描述参照图1,它描述了一个剪草机和按照本发明的原理并总体上由10号指定的附件构造。剪草机及附件10包括更多或更少常规动力旋转式剪草机12。剪草机12侧出口区域的14,是排出草屑时的剪草机操作。剪草机12在地面上的移动是常规12W和具有倒U形的手柄12H操控四个车轮完成。剪草机12可以是完全常规的,因此不需要在这里进行详细描述。虽然我们已经示出了本发明与动力旋转式剪草机,但它同样可以与大多数常用的剪草机类型使用,并且可以很容易地适应任何已知的手扶式或骑式剪草机。按照本发明,连接到剪草机12的出口区域14是一个管状的导引16,其引导从出口区域14推动空气和草屑到一个较高的位置18,在此,导板16通向一个挡板壳体20。壳体20通过常规方法如吊索20S和夹子20C被牢固地安装到手柄12H。由于这些坐骑可能是完全传统和完全在这一领域的工作人员的能力范围内,我们不在这里详细介绍它们。只要它们牢固的壳体20容纳于手柄12H,任何常规的安装件均可被使用。在壳体20中,图2有更清楚的显示。定义了第一卷22接收从管16和开放的底部推进的空气和草屑。一个内部壁23将壳体20和分隔空间22从第二卷24,也公开于底部。在使用中,空气将草屑推进到卷22从管16。草屑和空气从22的底部出来。如要详细解释则如下,在使用中,空气和草屑之后都进入到一次性塑料袋口中,和草屑比空气重倾向于留在袋中。空气出口的口袋里一部分的体积24下和空气进入该体积并且通过覆盖的屏幕26上的开口25向下流出。该开口25是在壳体20的前端,因此空气和任何物品可以推动它,让它过去的挡板和屏幕26推动远离用户,谁,当然,站立行走在处理12h使用剪草机割草时12。在根据本发明的一个主要特征,提供了一种袋安装装置30。袋安装装置30包括一个在边缘的开口部分40m的一般的矩形框32的一次性塑料袋40或40。框架32是由一个可转动的安装56安装到壳体20和56后端的装置。这种安装包括一杆57,其被焊接或以其它方式固定到板58,后者又固定到框架32的前构件32F,如图2。一对扭转弹簧59,59用于迫使框架32枢转向上和抗衡有所重力的倾向,向下枢转框架绕杆57。在根据滑动部件60,60,它们分别安装于前向后滑动处(上杆诸如杆62接收的转动杆57的相对端部,图2中,安装在壳体20的两侧,以所述壳体优选包括的衬衫构件64)。该滑动安装允许框架32在图中所示的位置之间移动。其特征在于,它是在两个卷22和24(但不包括下屏幕26,并与沿着至少在框架的后部和侧面壳体基本上气密接触),以在图中所示的位置下对齐。1,4,5,6和7,在那里它被暴露,而且在壳体20的后部接触。如上所述,弹簧59,59是足够强的框架32的约计数器的重量,吊索50和空袋40或40。然而,一个装有袋子的吊索50和框架32将导致框架32向下枢转(如图4至图6)。为了防止这种情况发生过早,在其前面的操作位置(图2,图3和8),在外壳20的后部设置一种手动锁存器70保持滑动部件60,60。这个闩锁70用于可释放地抓住手柄54时,框架32在壳体20的下方对齐(如图最好在图2,图3和8)。这种对齐框架和袋向上与交付袋子的口或开口卷22和24的底部的框架中打开。依照本发明公开的一侧或水平方向,车架32还可用于安装吊索50。此开口侧,如在图1最佳示出,最好的是向后侧。吊索50优选主要由柔性但非弹性的材料如重型帆布,尽管它也可以是其它材料,如尼龙网,并且可能在某些应用中进行的更硬的材料制成。后侧的开口最好被定义和一个倒U形的铝合金管框架52钢筋(图1)固定至框架32的后角且可安装后手柄54。手柄54的端部可枢转地安装到框架52。把手54有助于将与框架32和背带50释放到壳体20中,这将在下面说明。框架52是由一个具有帆布吊索缝制成一致地尺寸和形状的套筒,并通过框架52通过该套筒固定在吊索上以任何方便的方式。虽然任何闩锁机构只要它有足够的强度,在吊索50下可将加载的袋托起,一个弹簧锁闩机构,如在图中所示工作。1和3-8是最好的。(通过向下推动锁闩70的顶端70H,底部捕捉70C被降低,并允许手柄54离开或进入该手柄54可枢转地安装在一个小的角度上移动,弹簧机构将顶70H和捕70C向上握住手柄54,从而保持架32相对于壳体20的下侧。)如上面提到的,当剪草机在使用中,该框架靠壳体20与袋40的口在框架32被锁存向前和向上如图的上边缘的边缘部分40M。在切割草时,剪草机12驱使空气和草屑通过导向器16进入第一腔室或壳体的体积22。从该卷的唯一出口是向下并进入袋40的口。空气流中的包逆转为向上流动到第二腔室或外壳20的体积24,并从那里向下穿过筛网26和向下并通过构件60,60以及它们之间的垂直后壁形成的罩。草屑积聚在袋40,当该袋子被装满时,用户将希望换一个袋子。卸载全袋这是通过(优选当剪草机10是在一个地方,填充袋是在左边)通过以下步骤。锁闩机构的顶70H被向下推,这会将捕捉70C(图1)向下,并允许手柄54离开捕70C和吊索50,使得其底部撞击地面向下移动。吊索50的侧面开口的底部也移动到或接近地面。在这一点上,剪草机可以被向前移动(图5),以在整个帧32和袋缘40M承受站在剪草机和附件10后面的用户。袋子缘40M,优选在这一点上栓(图5)和袋向后推压框架32和下出吊索50的后开口的(图1和6)。作为侧开口的底部几乎水平地呈现给袋40没有障碍物并填充袋(或由用户在把手54稍微向下的压力)的重量移动的管道框架52的底部。用户可以容易地卷起充分袋40向后,这样它基本上出吊索50(图6),然后推进剪草机和附件10,使得吊索50是自由的袋40。管状框架52用来从吊索侧开口定义并也用来保持框架32,允许它从枢太远,但在向下的方向它可能会干扰袋40的去除。重装袋当空吊索50是空的旧袋40,框架32和吊索50会返回(通过弹簧59,59),在图中大致所示的位置。7和40可以安装新包。然后框架32、吊索50和新袋40向
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本文标题:自走式草坪修剪机设计-含PPT【包含10张CAD图纸和文档资料】
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