WO2009003367A1 - Sécateur de type ciseaux - Google Patents

Sécateur de type ciseaux Download PDF

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Publication number
WO2009003367A1
WO2009003367A1 PCT/CN2008/001249 CN2008001249W WO2009003367A1 WO 2009003367 A1 WO2009003367 A1 WO 2009003367A1 CN 2008001249 W CN2008001249 W CN 2008001249W WO 2009003367 A1 WO2009003367 A1 WO 2009003367A1
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WO
WIPO (PCT)
Prior art keywords
chain
handle
casing
connecting rod
button
Prior art date
Application number
PCT/CN2008/001249
Other languages
English (en)
French (fr)
Inventor
Yong Chen
Original Assignee
Yong Chen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yong Chen filed Critical Yong Chen
Priority to DE112008001815.4T priority Critical patent/DE112008001815B4/de
Publication of WO2009003367A1 publication Critical patent/WO2009003367A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/08—Other tools for pruning, branching or delimbing standing trees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/02—Chain saws equipped with guide bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/12—Lubricating devices specially designed for chain saws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/14—Arrangements for stretching the chain saw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/003—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for chain saws

Definitions

  • the present invention relates to a trimming tool, and more particularly to a scissor-type pruning shear.
  • Chain saws are commonly used tools for trimming or cutting plants. They are generally driven by a drive mechanism that drives a circular saw blade. They have a long history and many improvements have been made in the development of the product.
  • a chain saw as disclosed in U.S. Patent No. 3,991,470 which has two guard plates that are pivotally mounted to the body and are coplanar with the chain plates and chains, with flared faces at the heads of the two shield plates.
  • the guiding device is used to introduce the object to be cut. Thanks to the use of two guard plates, it is possible to prevent the operator or the person next to them from coming into contact with the chain saw for good safety.
  • this chain saw also has disadvantages, and the opening and closing of the two shield plates used cannot be controlled by the user, which is inconvenient to use.
  • a chain saw as disclosed in U.S. Patent No. 4,294,012, has a protective plate that is rotatable relative to the chain plate and chain of the chainsaw and located in a plane parallel to the plane of the chainsaw blade so that the shield It can be inserted under the sawed wood to lower the sawdust chain of the wood, or to grasp the sawed twig and direct it into the chain saw.
  • the chain saw has a first handle disposed on the chain saw body and a second handle coupled to the shield so that the shield can be rotated relative to the chain by rotating the handles relative to one another.
  • a disadvantage of such a chain saw is that the positions of the first handle and the second handle are unreasonable and the operation is inconvenient.
  • the technical problem to be solved by the present invention is to overcome the above drawbacks of the prior art and provide A scissor pruning shear that makes it easy to handle and safe.
  • Scissor pruning shears including:
  • Two handles one of which is a D-shaped handle with a shaft attached to the housing, and the other is a straight handle.
  • the plane of the D-shaped handle is 90 degrees from the axis of the straight handle, and one end of the straight handle is connected to the shaft of the shield.
  • the connecting rod shaft is connected, the other end of the connecting rod is connected to the casing, the tail is connected with the shaft of the casing through the soft rubber and the hinge to form a four-bar linkage mechanism, and the straight handle drives the protective cover through the four-bar linkage mechanism to be inaccessible to the workpiece to be cut. a first position of the cutting chain and a second position at which the cut object can approach the cutting chain;
  • a chain cutting mechanism the driving mechanism drives the sprocket to drive the chain to perform the cyclic cutting movement;
  • a casing a built-in drive mechanism of the casing, and a chain cutting mechanism.
  • the straight handle is also provided with a releasable locking mechanism that is releasably locked when the shield is in the first position.
  • the motor of the above drive mechanism has its axis in the same plane as the two handles, and drives the sprocket through a pair of bevel gear mechanisms.
  • the second handle is disposed on the other side opposite to the D-shaped handle, and its axis is at a vertical angle of 90 degrees with the plane of the D-shaped handle, which can conveniently hold the scissors-type pruning Cut, easy to work, and easy to adjust D type according to working environment
  • the angle of the handle is also convenient for the user to carry the tool.
  • Figure 1 is a front elevational view of an embodiment of the present invention.
  • Figure 2 is a rear elevational view of an embodiment of the present invention.
  • FIG. 3 is a view showing a state in which a handle and a shield are unfolded according to an embodiment of the present invention.
  • FIG. 4 is a schematic view of plant pruning according to an embodiment of the present invention.
  • Fig. 5 is a schematic view showing the plant trimming according to another embodiment of the present invention.
  • Fig. 6 is a schematic view showing the locking mechanism of the embodiment of the present invention when it is locked.
  • Fig. 7 is a schematic view showing the locking mechanism of the embodiment of the present invention when it is not locked.
  • Figure 8 is a schematic illustration of a tool-free chain tensioning mechanism in accordance with an embodiment of the present invention.
  • Figure 9 is a schematic illustration of an automatic lubrication mechanism in accordance with an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of an operation switch according to an embodiment of the present invention.
  • the scissors pruning shears include:
  • the casing has a chain saw driving mechanism, and supports a chain cutting mechanism, the chain plate 5 supports the chain 4;
  • Two handles 6, 7, a D-handle 7 is connected to the casing 1, and the other handle 6 has one end connected to the shield 3 through the shaft 19.
  • the head position of the handle is connected to the rod 9 through the shaft 10, and the other end of the rod 9 is passed.
  • the shaft 11 is connected to the casing 1, and the rear of the handle passes through the soft rubber and the hinge 12 and the casing 1 The shaft is connected, and the push switch 8 is provided on the handle 6.
  • the second protective cover 2, 3, the protective cover 2 is fixed on the casing 1 and blocks the chain 4.
  • the D-handle 7 is attached to the casing 1 by a hand wheel 14 shaft. Thanks to the D-handle 7, it is easy to handle and easy to operate the entire pruning shears. It is also possible to change the position of the D-handle 7 by tightening and loosening the hand wheel 14 to suit different operational needs.
  • the D-handle 7 is further provided with an operation switch 8, as shown in FIG. 10, the operation switch includes a long type of bar 81 and a touch switch 82 connected to the handle through the shaft 83, and the bar 81 is directly opposite to the touch switch 82, and is pressed.
  • the bar 81 turns on the touch switch 82 to control the operation of the motor.
  • the same operation switch 8 is also provided on the straight handle, and is connected in series with the operation switch 8 on the D-type handle. Only two switches can be pressed at the same time to turn on the power of the pruning shear, and the pruning shear can work. safer. Since such switches are more common, they are not discussed in detail here.
  • Figure 3 shows the state in which the protective cover 3 of the scissors pruning shears is fully opened. This is the working position normally used by the tool. The user can adjust the angle of the D-shaped handle 7 through the hand wheel 14, which is convenient for holding. The shield 3 is manipulated by the straight handle 6 to open or close the shield 3.
  • the protective cover 3 is interlocked with the handle 6 through the connecting rod 9 and the hinges 10, 11 under the manipulation of the handle 6, is driven by the handle 6, and is opened by the handle 6 to accommodate the cut objects such as branches or cans for cutting. .
  • the protective cover 3 can also clamp and limit the cut object, making the cutting more convenient, and the upper chain 4 is covered by the protective cover 2, avoiding the operator and the person next to it. When you encounter a chain saw, you can improve the safety of the operation, as shown in Figure 4.
  • the protective cover 2 can also be axially connected to the casing 1 and is limited by a spring. See Figure 5 for the working state. When working, the protective cover 2 is pushed away by sawn branches or cans 20 and clamped by branches or cans by spring force to facilitate cutting.
  • the handle of the scissors pruning shears 6 is also provided with a locking mechanism, as shown in Fig. 6 and Fig. 7.
  • the locking mechanism comprises: a connecting rod 22, a push button switch, a slider 25, the connecting end 22 is fixed on the casing 1 and the other end has an elliptical hole 23, and a guiding groove 28 is guided by a post 24 fixed on the handle.
  • the push button switch includes a button 26, a spring 27 sleeved on the button 26, and the slider 25 is placed in the inner groove 20 of the handle and movable in the slot, one end of which is coupled to the spring 29, and the spring 29 is fixed to the handle.
  • the link 22 pushes the slider 25 to move within the slot to release the position, until the link 22 moves to its oblong hole 23 to the button, allowing the button 26 to depress and lock the link 22
  • the steps on the slider 25 can block the button 26 so that it cannot be depressed.
  • the locking mechanism is used to lock the handle 6 when the shield is in the closed state, that is, in the non-working state, for the purpose of safe use and convenient storage.
  • Figure 6 is in the locked position, the ring groove on the button 26 is caught in the elliptical hole 23 of the link 22, locking the straight handle in a position to close the shield 3.
  • Fig. 7 shows the state of the straight handle in the maximum open position.
  • Figure 8 is a tool-free chain tensioning mechanism provided in the scissor pruning shear.
  • the chain will be stretched due to long-term stress, so it is necessary to pass the chain tensioning mechanism to the chain.
  • the bar is tensioned.
  • the chain tensioning mechanism is: a screw 19 has a bevel gear 17 at one end, is fixed on the casing 1, the main body thereof passes through the nut 18, the nut 18 is fixed on the chain plate 5, the bevel gear 17 meshes with the other bevel gear 16, and the other One end of the bevel gear 16 is fixed to the adjustment knob 15.
  • the chain tensioning mechanism drives the bevel gear 16 by rotating the adjusting knob 15 fixed on the casing 1.
  • the bevel gear 16 drives the bevel gear 17, and the bevel gear 17 rotates together with the screw 19 to drive the nut 18 to move, and then the nut 18
  • the chain plate 5 is moved to thereby tension the chain 4.
  • the present invention also provides a chain automatic lubrication mechanism.
  • the chain automatic lubrication mechanism comprises a fuel tank 28, a fuel pipe 31, a grease nipple 33, an oil pump 32, an oil pump 32 inlet and outlet connected to the oil pipe 31, one end of the rotary shaft of the oil pump 32 is connected with the worm wheel 29, the worm wheel 29 is matched with the worm 30, and the screw 30 is driven by the motor.
  • the motor When the chain 4 is lubricated, the motor is started, and the motor output shaft drives the worm 30 and the worm wheel 29 to rotate, and then the oil pump 32 generates a pressure difference in the oil pipe 31, thereby passing the oil in the oil storage tank 28 through the oil pipe 31 and the oil nozzle 33. It is sent to the chain 4 to achieve automatic lubrication of the chain.
  • the scissors-type pruning shear provided by the invention can be conveniently held, is convenient to work, and is also convenient to carry. Improve the convenience and safety of cutting.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Scissors And Nippers (AREA)

Description

技术领域
本发明涉及一种修剪工具， 特别涉及一种剪刀式修枝剪。
背景技术
链锯是常用的修剪或切割植物的工具， 其一般由驱动机构驱动循 环式链锯刀而工作， 已有很长的历史了，并在产品的发展过程中作了 许多改进。 如美国专利文献 US 3991470中公开的一种链锯， 其具有二 个防护板， 可以枢转地安装在机体上， 并与链板和链条同平面， 在二 个防护板的头部有喇叭口形的导向装置，用于导入被切割物体。 由于 使用二个防护板， 因此能够防止操作者或旁边的人接触链锯，具有很 好的安全性。但这种链锯也存在不足之处，其采用的二个防护板的打 开和关闭不能由使用者来控制， 使用起来不方便。
又如美国专利文献 US 4294012中公开的一种链锯， 具有一个防护 板，该防护板相对于链锯的链板和链条可以转动并且位于平行于链锯 刀片平面的平面内，以使得防护板可以插入到被锯切的木头下面以降 低木头锯屑卡塞链条，或者抓住被锯切的小树枝并将其导入链锯。该 链锯具有设置在链锯主体上的第一把手，以及连接于防护板的第二把 手， 从而可以通过将把手相对彼此转动来相对于链条转动防护板。这 种链锯的缺陷在于第一把手与第二把手的位置不合理， 操作不方便。
发明内容
本发明所要解决的技术问题是克服现有技术的上述缺陷而提供 一种剪刀式修枝剪， 使其既能方便操作又安全。
本发明解决上述技术问题所采用的技术方案为：
剪刀式修枝剪， 包括：
两个防护罩， 一个防护罩固定在机壳上， 另一个防护罩轴连在机 壳上；
两个手柄， 其中一个为轴连在壳体上的 D型手柄， 另一个为直手 柄， D型手柄所在的平面与直手柄的轴线成 90度， 直手柄一端与防护 罩轴连， 中间由连杆轴连， 连杆另一端轴连在机壳上， 尾部通过软胶 和铰链与机壳轴连而形成四连杆机构，直手柄通过四连杆机构带动防 护罩在被切割物不易接近切割链条的第一位置和被切割物可以接近 切割链条的第二位置之间转动；
一链条式切割机构： 由驱动机构驱动链轮带动链条做循环切割运 动；
一机壳， 机壳内置驱动机构， 并支撑链条式切割机构。
上述直手柄上还设置可释放锁定机构， 在防护罩位于第一位置 时， 该直手柄被可释放地锁定。
上述驱动机构的马达其轴线与两个手柄处于同一平面， 并通过一 对锥齿轮机构驱动链轮。
与现有技术相比， 本发明的优点在于：
1、 通过设置可以调整角度的 D型手柄， 该第二把手设置在与 D型 手柄相对的另一边， 其轴线与 D型手柄所在的平面成 90度垂直角度， 能方便握持剪刀式修枝剪， 便于工作， 并可视工作环境方便调整 D型 手柄的角度， 同时也便于使用者携带该工具。
2、 将防护罩与手柄连接， 使用者可以通过手柄来操作防护板打 开和关闭， 提高了剪切的方便程度和安全性。
附图说明
图 1为本发明实施例的主视图。
图 2为本发明实施例的后视图。
图 3为本发明实施例的把手和一防护罩展开状态图。
图 4为本发明实施例的植物修剪示意图。
图 5为本发明另一实施例的植物修剪示意图。
图 6为本发明实施例的锁定机构锁定时的示意图。
图 7为本发明实施例的锁定机构未锁定时的示意图。
图 8为本发明实施例的免工具的链条张紧机构的示意图。
图 9为本发明实施例的自动润滑机构的示意图。
图 10为本发明实施例的操作开关的示意图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图 1、 图 2所示， 剪刀式修枝剪包括：
一机壳 1， 机壳内置链锯驱动机构， 并支撑链条式切割机构， 链 板 5支撑链条 4;
二手柄 6、 7， 一 D型手柄 7轴连在机壳 1， 另一手柄 6其一端与防 护罩 3通过轴 19连接， 手柄的头部位置通过轴 10连接拉杆 9， 拉杆 9另 一端通过轴 11连接在壳体 1上，手柄的后部通过软胶和铰链 12与机壳 1 轴连， 手柄 6上设置按压开关 8。
二防护罩 2、 3, 防护罩 2固定在机壳 1上， 并挡住链条 4。
D型手柄 7由手轮 14轴连在机壳 1上。 由于采用 D型手柄 7， 因此便 于握持，方便操作整个修枝剪。还可以通过拧紧和放松手轮 14而改变 D型手柄 7的位置， 以适应不同的操作需要。
D型手柄 7上还设有操作开关 8， 见图 10， 操作开关包括通过轴 83 连接在手柄上的长型按条 81和触动开关 82， 按条 81正对触动幵关 82， 按下按条 81便接通触动开关 82， 从而控制电机工作。
同样， 直手柄上也设置了相同的操作开关 8， 与 D型手柄上的操作 开关 8串联， 操作时只有二个开关同时按下才能接通修枝剪的电源， 修枝剪才能工作， 因此更安全。 由于此类开关较常见， 在此不作详细 论述。
图 3显示了剪刀式修枝剪的防护罩 3处于完全打开时的状态， 这是 该工具通常使用的工作位置，使用者可以通过手轮轮 14调整 D型手柄 7的角度， 方便握持， 通过直把手 6来操纵防护罩 3, 使防护罩 3打开或 关闭。
不工作时，两个防护罩 2、 3合拢将链板 5链条 4遮住，起保护作用， 见图 1。
工作时， 防护罩 3在手柄 6的操纵下通过连杆 9和铰链 10、 11与手 柄 6联动， 由手柄 6驱动而打开，并与链条间容纳树枝或罐木等被切割 物进入而进行切割。 防护罩 3还可以对被切割物进行夹持和限位， 使 切割更方便，而且上部链条 4由防护罩 2遮盖，避免操作者和旁边的人 碰到链锯， 提高操作的安全性， 见图 4。
上述防护罩 2还可轴连在机壳 1并由弹簧限位， 其工作状态参见图 5。工作时防护罩 2被锯切的树枝或罐木 20等推开，并受弹簧力的作用 而夹住树枝或罐木， 从而方便切削。
剪刀式修枝剪的手柄 6上还设置了锁定机构， 见图 6、 图 7。
该锁定机构包括： 连杆 22、 按钮开关、 滑块 25， 连杆 22—端固定 在机壳 1上， 另一端带椭圆形孔 23， 并有一引导槽 28由固定在手柄上 的柱 24引导， 按钮开关包括按钮 26、套在按钮 26上的弹簧 27， 滑块 25 置于手柄的内槽 20中并能在槽中移动，其一端与弹簧 29连接，弹簧 29 固定在手柄上。当两个手柄合拢时，连杆 22推动滑块 25在槽内移动而 让开位置，至连杆 22移动至其椭圆形孔 23到按钮下，使按钮 26可以压 下并锁住连杆 22; 当两个手柄打开后，滑块 25上的台阶可以挡住按钮 26, 使其不能压下。
上述锁定机构用于在防护罩处于闭合状态即非工作状态时将手 柄 6锁定， 以达到安全使用和便于存放携带的目的。
图 6是在锁定位置时， 按钮 26上的环槽卡在连杆 22的椭圆型孔 23 中， 将直把手锁定在使防护罩 3处于闭合的位置。
图 7显示了直手柄在最大打开位置时的状态， 通过按压所述直手 柄， 按钮 26上的环槽脱离连杆 22的椭圆型孔 23, 被弹簧 27弹起， 则直 手柄从锁定位置被释放。
图 8为该剪刀式修枝剪中设置的免工具的链条张紧机构。 链锯在 工作中，链条由于长期受力会被拉长，故需要通过链条张紧机构对链 条进行张紧。
链条张紧机构为： 螺杆 19一端带锥齿轮 17， 固定在壳体 1上， 其 主体穿过螺母 18， 螺母 18固定在链板 5上， 锥齿轮 17与另一锥齿轮 16 啮合， 另一锥齿轮 16的一端固定调节钮 15。
上述链条张紧机构通过旋转固定在机壳 1上的调节钮 15而驱动锥 齿轮 16，锥齿轮 16再驱动锥齿轮 17，锥齿轮 17与螺杆 19一起旋转时带 动螺母 18移动， 再由螺母 18带动链板 5移动， 从而使链条 4张紧。
参见图 9， 本发明还设置了链条自动润滑机构。
上述链条自动润滑机构包括油箱 28、 油管 31、 油嘴 33、 油泵 32， 油泵 32进出口连接油管 31， 油泵 32旋转轴一端连接蜗轮 29， 蜗轮 29 与蜗杆 30配合， 螺杆 30由电机带动。
润滑链条 4时， 启动电机， 由电机输出轴带动蜗杆 30、 蜗轮 29转 动，再通过油泵 32在油管 31中产生压力差， 由此将储油罐 28中的油通 过油管 31、 油嘴 33将油送到链条 4上， 从而实现自动润滑链条。
工业实用性
本发明提供的剪刀式修枝剪能方便握持， 便于工作， 同时也便于 携带。 提高了剪切的方便程度和安全性。

Claims

权利栗求
1、 剪刀式修枝剪， 其特征在于：
包括：
两个防护罩， 一个防护罩固定在机壳上， 另一个防护罩轴连在机 壳上；
两个手柄， 其中一个为轴连在壳体上的 D型手柄， 另一个为直手 柄， D型手柄所在的平面与直手柄的轴线成 90度， 直手柄一端与防护 罩轴连， 中间由连杆轴连， 连杆另一端轴连在机壳上， 尾部通过软胶 和铰链与机壳轴连而形成四连杆机构，直手柄通过四连杆机构带动防 护罩在被切割物不易接近切割链条的第一位置和被切割物可以接近 切割链条的第二位置之间转动；
一链条式切割机构： 由驱动机构驱动链轮带动链条做循环切割运 动；
一机壳， 机壳内置驱动机构， 并支撑链条式切割机构。
2、 根据权利要求 1所述的剪刀式修枝剪， 其特征在于： 所述的驱 动机构的马达其轴线与两个手柄处于同一平面，并通过一对锥齿轮机 构驱动链轮。
3、 根据权利要求 1或 2所述的剪刀式修枝剪， 其特征在于： 所述 的链条上设置免工具的链条张紧机构，所述的免工具的链条张紧机构 为： 螺杆一端带锥齿轮， 固定在壳体上， 其主体穿过螺母， 螺母固定 在链板上，锥齿轮与另一锥齿轮啮合，另一锥齿轮的一端固定调节钮。
4. 根据权利要求 1或 2所述的剪刀式修枝剪， 其特征在于： 所述 的直手柄上设锁定机构，所述的锁定机构为：连杆、按钮开关、滑块， 连杆一端固定在机壳上，另一端带椭圆形孔，并有一引导槽由固定在 手柄上的柱引导， 按钮开关包括按钮、套在按钮上的弹簧， 滑块置于 手柄的内槽中并能在槽中移动，其一端与弹簧连接，弹簧固定在手柄 上； 当两个手柄合拢时，连杆推动滑块在槽内移动至连杆移动至其椭 圆形孔到按钮下， 压下按钮并锁住连杆， 按下手柄后， 按钮离开椭圆 形孔而释放连杆。
5. 根据权利要求 3中的剪刀式修枝剪， 其特征在于： 所述的直手 柄上设锁定机构， 所述的锁定机构为： 连杆、按钮开关、 滑块， 连杆 一端固定在机壳上，另一端带椭圆形孔，并有一引导槽由固定在手柄 上的柱引导， 按钮开关包括按钮、套在按钮上的弹簧， 滑块置于手柄 的内槽中并能在槽中移动， 其一端与弹簧连接， 弹簧固定在手柄上； 当两个手柄合拢时，连杆推动滑块在槽内移动至连杆移动至其椭圆形 孔到按钮下， 压下按钮并锁住连杆， 按下手柄后， 按钮离开椭圆形孔 而释放连杆。
6. 根据权利要求 1或 2所述的剪刀式修枝剪， 其特征在于： 还设 置了链条自动润滑机构， 链条自动润滑机构包括油箱、 油管、 油嘴、 油泵， 油泵进出口连接油管， 油泵旋转轴一端连接蜗轮， 蜗轮与蜗杆 配合， 螺杆由电机带动。
7. 根据权利要求 3所述的剪刀式修枝剪， 其特征在于： 还设置了 链条自动润滑机构，链条自动润滑机构包括油箱、油管、油嘴、油泵， 油泵进出口连接油管， 油泵旋转轴一端连接蜗轮， 蜗轮与蜗杆配合， 螺杆由电机带动。
8. 根据权利要求 4所述的剪刀式修枝剪， 其特征在于： 还设置了 链条自动润滑机构，链条自动润滑机构包括油箱、油管、油嘴、油泵, 油泵进出口连接油管， 油泵旋转轴一端连接蜗轮， 蜗轮与蜗杆配合， 螺杆由电机带动。
9. 根据权利要求 5所述的剪刀式修枝剪， 其特征在于： 还设置了 链条自动润滑机构，链条自动润滑机构包括油箱、油管、油嘴、油泵， 泵进出口连接油管， 油泵旋转轴一端连接蜗轮， 蜗轮与蜗杆配合， 螺杆由电机带动。
PCT/CN2008/001249 2007-06-30 2008-06-30 Sécateur de type ciseaux WO2009003367A1 (fr)

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