JPH0711566Y2 - Takashi pruning tool - Google Patents

Description

[Detailed description of the device]

[0001]

[Field of Industrial Application] The present invention is provided between a long rod such as a high-branch pruning tool, a movable part of a working tool such as a scissors body at the tip of the rod, and a drive handle at the base end of the rod. The invention relates to a high-branch pruning tool having a support rod that can be expanded and contracted together with the length of a connecting rod.

[0002]

2. Description of the Related Art A conventional long rod, such as a high-branch pruning tool, and a connecting rod for operating a working tool, such as a scissor body, which are operated by a drive handle, expand and contract together. The switch body provided between the drive rod and the drive rod is a collet chuck system, and the main rod is engaged with the switch rod provided at the end of the drive rod and the main rod is gripped by the grip portion of the switch body. Yes,

In order to operate the switch body, a switch operating rod is provided along the drive rod between the drive lever of the switch body and the switch drive handle of the base rod.

[0004]

Since the conventional switch described above is a collet chuck type switch body,
The main rod is strongly gripped by the grip portion of the switch body so that the force of the base rod is transmitted to the driven rod.

However, in gripping by the frictional force between the gripping part of the chuck and the driven rod, the gripping part tends to slip on the driven rod, and if a large load is applied to the driven rod during work, the gripping part of the switch body slides on the driven rod. Due to the uncertain gripping of the driven rod that cannot fully operate the driven rod, and the addition of the mechanism for activating the gripping part of the switch body, the entire structure becomes complicated. Therefore, an extra operation for operating the switch body is required.

The present invention has been devised in view of the above, and by engaging the drive handle of the support rod, the hooked portion of the switch body at the tip of the drive rod connected thereto is engaged with the recessed portion of the main rod which engages with the switch body. By inserting the switch body, the engagement between the switch body and the main rod is made accurate and reliable without slippage.

[0007]

[Means for Solving the Problems] A rod 4 composed of a base rod 4 ₁ and a driven rod 4 ₂ and capable of freely expanding and contracting, and a blade 1 ₁ constituting a scissor body 1 supported by a front portion of the rod 4. And drive lever 1 for cutting edge 1 _2
3, in which the connecting rod 3 which is disposed between the drive wheel 2 provided swingable to actuate the cutting edge 1 ₂ parts after the rod 4 can be both stretchable, connecting rod 3 driving rod for extending and retracting 3 ₁ and Shu杆3 ₂ connected to the switch body 5 to the disconnect of the connection arranged between the main lever 3 ₂ and drive rod 3 ₁ driving rod
3 ₁ of the switch body 5 at the sawing operation to connect the Shu杆3 ₂ to drive rod 3 _1, the driving rod 3 ₁ is operated in the opposite direction to the above ground direction when it is returned to the original state switch body 5 Is the driving rod 3 ₁ and the main rod
3 A which was so disconnect the _two main rods 3 ₂ provided by tandem the concave portion 3 ₂₁ toward the longitudinal direction on the basis of the appropriate interval, also the switch body 5 is mainly lever 3 ₂ on the side wall portion of the retaining body 5 ₁ embracing facing the main rod 3 _{and second} retaining body 5 ₁ Shu杆
3 with _two of the concave portions 3 ₂₁ guiding part 5 ₁₁ to induce and支受the engaging portion 5 ₂₁ arrangement the oscillator 5 ₂ provided, also the holding portion 5 _first driven lever 3 ₂ of concave portions 3 ₂₁ Facing each other, and these recesses 3 ₂₁
Freely removed from engagement with the engagement to guiding part 5 ₁₁ induction unit 5 ₁₁ oscillator 5 ₂ having a hooking portion 5 ₂₁ which engages with said engaging portion 5 ₂₁ with the above concave portion 3 ₂₁ and and swingably axial stop in the shaft 6 as news between the oscillator 5 ₂ and the retaining member 5 _first rocking body 5 ₂
A spring 7 that biases toward engaging portion 5 ₂₁ in a direction to engage the concave portion 3 ₂₁ and guiding part 5 ₁₁ of the retaining body 5 ₁ Shu杆3 ₂ provided,
Engaging portion 5 ₂₁ concave portion in the drive lever 5 ₂₂ oscillators 5 ₂ 3 ₂₁
And the guide portion 5 ₁₁ are urged in the direction of strong engagement and the front portion of the drive rod 3 ₁ that grinds the main rod 3 ₂ is engaged with the support shaft 5 ₂₃ to form a link mechanism. engage the structure vital after partial to the action part 2 ₁ of the driving wheel 2, a front portion of the driven rod 4 ₂ to the drive lever 1 ₃ of the action of the cutting edge 1 ₂ etc.鋏体1 Shu杆3 ₂ The drive lever 1 ₃ is engaged with a pin 1 ₃₁ so as to form a link mechanism, and moreover, between the main rod 3 ₂ and the receiving seat 1 ₅ of the receiving blade ₁₁ etc., the receiving blade 1 ₁ etc. receptacle to is provided with a spring 8 for the biases in the direction of the action body such as the cutting edge 1 ₂ opens.

[0008]

[Action] To open and close with respect to the cutting edge 1 ₂ receiving blade 1 ₁ of the rod 4 is adjusted to a desired length鋏体1, first cutting edge 1 ₂ In鋏体1
The main lever 3 ₂ of concave portion of the receiving blades 1 ₁ to under opened, engaging portion 5 ₂₁ connecting rod 3 which are in the switch body 5 oscillator 5 ₂ 3 ₂₁ and Shu杆3 ₂ The guide body 5 ₁ of the holding body 5 ₁ is held in a disengaged state from both of the guiding portions 5 _{11 and} the rod 4 ₁
The rod 4 and the connecting rod 3 can be expanded and contracted by releasing the restriction on the base rod 4 ₁ of the driven rod 4 ₂ fixed to the base rod 4 _{1 by} the lock device 9 of the base rod 4 ₁ that is elastically engaged with the rod 4. To do so.

Next, when the driven rod 4 ₂ is expanded and contracted with respect to the base rod 4 ₁ in order to make the rod 4 have a desired length, the connecting rod 3 is also disconnected from the drive rod 3 ₁ and the main rod 3 ₂ by the switch body 5. Therefore, as the rod 4 expands and contracts, the connecting rod 3 expands and contracts and its length can be easily changed.

By the way, when the length of the rod 4 is set to a desired length, the driven rod 4 ₂ is expanded and contracted with respect to the base rod 4 ₁ to make the rod 4 have a desired length, and the connecting rod 3 is also provided. Engagement of the switch rod 5 and the main rod 3 ₂ to expand and contract according to the expansion and contraction of the rod 4 and to connect and disconnect the drive rod 3 ₁ and the main rod 3 ₂ with the connecting rod 3 Connecting rod 3 with movement
Oscillator but which expands and contracts rod 4 is pulled in the spring 7 concave portion 3 ₂₁ of Shu杆3 ₂ In the nearest turned position to a predetermined length overlap the guiding part 5 ₁₁ of the retaining body 5 ₁ The hanging part 5 _{21 of} 5 ₂ is the guiding part 5
Lightly engage the ₁₁ and concave portion 3 _21, by the action of further locking device 9 is connected Where issued a snap and Kaion is the desired length and is in the drive rod 3 ₁ Shu杆3 ₂ of the rod 4鋏体1 when fixing the driven lever 4 ₂ Moto杆4 ₁ Te is in a state of usable.

[0011] The driving handle 2 provided at the rear end portion of the Moto杆4 ₁ sandwiched branches of a tree to be cut in鋏体1 that follow high branch pruner draw aside curt, connected to said drive wheel 2 driving rod 3 ₁ and the concave portion 3 ₂₁ of the oscillator 5 ₂ main lever 3 ₂ of concave portions 3 of ₂₁ to toward and pull oscillator 5 ₂ engaging portion 5 ₂₁ is Shu杆3 ₂ switch body 5 Idaku bearing member 5 _first guiding part 5 ₁₁ both strongly actuate in the direction of engagement of the engaging portion 5 ₂₁ concave portion 3 ₂₁ and the induction portion 5
Tighten the engagement with ₁₁ , then drive the main rod 3 ₂ to drive rod 3 ₁
When the rod 4 is pulled toward the rear end of the rod 4, the main rod 3 ₂ pulls the drive lever 1 ₃ of the cutting blade 1 ₂ of the scissors 1 connected to the front end of the rod 4 to operate the cutting blade 1 ₂ to receive the blade. compressing the spring 8 with cutting the object to be cut was between 1 _1.

After the cutting of the object to be cut and the like, when the pulling of the drive handle 2 is released, the drive rod 3 ₁ of the connecting rod 3 returns to its original position and the rocking member 5 ₂ of the switch body 5 returns to its original position. It will be. Oscillator 5 ₂ loose engagement between the concave portion 3 _2, and guiding part 5 ₁₁ of the retaining body 5 _first engaging portion 5 ₂₁ and Shu杆3 ₂ of the return to the original position oscillator 5 _2, Moreover, the compressed spring 8 is also released, and the elastic force pulls back the main rod 3 ₂ toward the front part of the rod 4 and moves the cutting blade 1 ₂ away from the receiving blade 1 ₁ to open the scissors portion 1. Becomes

In this case, in the switch body 5, the spring 7 is used.
Of the oscillator 5 ₂ contractile force main lever 3 oscillator 5 ₂ since the attracted toward the _second direction are not able to act blindly, the engaging portion 5 ₂₁ concave portion 3 ₂₁ and guiding part 5 ₁₁ Both of the main rod 3 ₂ and the drive rod 3 ₁ continue to be localized, and the connection is maintained to correspond to the next disconnection operation.

[0014] concave portion 3 of the engaging portion 5 ₂₁ of the oscillator 5 ₂ above
_When the engagement between ₂₁ and the guide portion 5 ₁₁ becomes loose, the hanging portion 5 ₂₁ is localized in the recessed portion 3 ₂₁ and the guide portion 5 _{11 by} the weak pulling force of the spring 7, and therefore the main rod 3 ₂ is roded. 4 together with the driven lever 4 ₂ is moved toward the longitudinal direction of the rod 4 engaging portion 5 ₂₁ concave portion I reverse weak tensile force of the spring 7 3 ₂₁ and guiding part 5 ₁₁
Shu杆third main lever 3 ₂ disengage with the movement of the ₂ lifted off can move freely relative to the switch body 5, that is, one that can change the length of the connecting rod 3.

[0015]

【Example】

An embodiment of the high branch pruning tool of the present invention will be described with reference to the accompanying drawings. 1 is a pair of scissors, cutting edge 1 ₂ for receiving blade 1 ₁
The is obtained by stopping the axial rotatable, 1 ₃ constitutes a bell crank with the cutting edge 1 ₂ and at the cutting edge 1 ₂ of the drive lever provided on the cutting edge 1 _2. The scissors 1 are engaged with the front end portion of the rod 4 in core 1 ₄ provided in the receiving blades 1 _1. Although the scissors body 1 shows the known scissors in which the cutting edge cross-polymerizes with the receiving blade in the examples,
What is called a push-cut type in which the cutting blade abuts on the receiving blade in addition to this, or one that finally grasps an object in this way, as long as it can cut or grasp the object Good.

Numeral 4 is a scissors body 1, which is an alloy of a light metal such as an aluminum alloy used for cutting a branch of a tall tree or for grasping an unreachable narrow place or a distant place and pulling it to the hand. in rod of the consists of a pipe stretch freely, examples thereof a Moto杆4 ₁ steel than a thin pipe driven lever 4 ₂ in Moto杆4 ₁ of a pipe made driven lever 4 ₂ Whereas Moto杆4 ₁ It is a two-stage telescopic rod that is slidably fitted in the longitudinal direction. This rod 4 uses an aluminum alloy pipe in the embodiment, but it may be made of other light metal, plastic, or the like, and the configuration of the rod does not have to be the double system as in the embodiment. The point is that it is light and easy to use and can be expanded and contracted.

[0018] 2 is a driving wheel operating the connecting rod 3 which seals the shaft of the front portion pivotable relative to base rod 4 ₁ alongside the grip hand 4 ₃ to the rear end portion of the Moto杆4 ₁ of the rod 4 .

[0019] 3 strong steel wire or steel strip by a connecting rod made by heat-treating, the main lever 3 ₂ and the linear drive rod of the elongate strip in the embodiment
3 consists of _one Tokyo and Shu杆3 ₂ are as tandem installed a semicircular concave portion 3 based on ₂₁ at predetermined intervals on the upper surface portion.

The semicircular addition may be serrated, engaging portion 5 ₂₁ of the shape is not limited to the embodiments short switch body 5 is engaged, such as the concave portion 3 ₂₁ Example Anything can be combined.

Reference numeral 5 denotes a switch body for connecting and disconnecting the drive rod 3 ₁ and the main rod 3 ₂ to each other. In the embodiment, a switch body is provided on a side wall portion of the holding body 5 ₁ having a substantially U-shaped cross section. those having a guiding part 5 ₁₁ bottom portion from the top surface to the main rod 3 _{and second} concave portion 3 ₂₁ is made of concave substantially V-shape with a matching shape, cross-section becomes substantially inverted U-shaped oscillator 5 ₂ engages from the body portion above the retaining body 5 _1,
Swingably axial stop the ones towards the upper rear to the retaining body 5 ₁ a shaft 6 in the vertical direction of the retaining body 5 _1.

[0022] The oscillator 5 _2, guiding part 5 ₁₁ of the retaining body 5 ₁
Facing to the Shu杆3 ₂ of concave portion 3 guiding part 5 ₁₁ engaging portion 5 ₂₁ of the pin-shaped both to fit Remove engages freely between ₂₁ and Shu杆3 ₂ of concave portions 3 ₂₁ It is provided as follows.

[0023] While engaging portion 5 ₂₁ The above is a pin-shaped in the embodiment, may be the addition claw, short guiding part 5 ₁₁ and the concave portion 3 ₂₁ bottom portion and to firmly engage the Anything can be used.

[0024] oscillator 5 ₂ to above constitutes a bell crank with a drive lever 5 ₂₂ projecting to the oscillator 5 ₂ and in its lower portion, the swing drive lever 5 ₂₂ in the longitudinal direction of the rocking body 5 ₂ When is the oscillator 5 ₂ to allow swinging toward the vertical direction of the retaining body 5 _1.

The above-mentioned connecting rod 3 is inside the rod 4, and the rear end portion of the drive rod 3 ₁ is locked to the acting portion 2 ₁ of the drive handle 2.
That the front end portion on the oscillator 5 ₂ of the drive lever 5 ₂₂ and drive lever 5 ₂₂ about the spindle 5 ₂₃ and drive rod 3 ₁ is engaged so as to constitute a link mechanism.

Further, the main rod 3 ₂ of the connecting rod 3 has a front end portion provided on the front end portion of the driven rod 4 ₂ of the rod 4 and a driving lever 1 ₃ of the cutting lever 1 ₂ of the scissors 1 and a driving lever 1 ₃ sliding Shu杆3 ₂ Whereas retaining body 5 ₁ between the sidewall and the sidewall of the retaining body 5 _first switch element 5 causes the engaged pin 1 ₂₁ such that the main rod 3 ₂ constitute a link mechanism Due to the movably engaged state, the holding body 5 ₁ supports the main rod 3 ₂ and, moreover, the main rod is provided between the side walls of the holding body 5 _1.
A retaining pin 5 ₁₂ that abuts on the upper surface of 3 ₂ is provided to hold the main rod within the holding body 5 ₁ .
3 ₂ regulates the holding body 5 ₁ so that it does not move in the vertical direction.

In the embodiment, the main rod 3 ₂ is fixed by the stop pin 5 ₁₂ .
Of it regulates the acting blindly, may have a structure in addition to the retaining body 5 ₁ main lever 3 ₂ is sandwiched so as not to act blindly, short in retaining body 5 within ₁ Shu杆3 ₂ embracing body 5 ₁ not be be limited to the embodiment as long as the vertical direction of the structure so as not to act blindly toward ones.

[0028] 7 in the coil spring, the coil spring 7 is the oscillator 5 ₂ and the retaining member 5 by the contraction force of the tension passing spring 7 in an expanded state between ₁ the oscillator 5 _second retaining body 5 ₁ Oscillator that pulls downward
5 in _which the _second engaging portion 5 ₂₁ to be localized in the bottom portion of the guiding part 5 ₁₁ of Shu杆3 ₂ of concave portion 3 ₂₁ and the retaining member 5 _1, the tensile force of the spring 7 spring 7 It can be adjusted by the length of extension.

[0029] 8 with a direction to open the cutting edge 1 ₂ of鋏体1 is connected to Shu杆3 ₂ by actuating towards the Shu杆3 ₂ toward the front of the rod 4 from the receiving blade 1 ₁ It is a spring with a force.

The coil spring 8 is in the embodiment is wound main lever 3 ₂ wound at the front portion of the Shu杆3 _2, its front end portion is fastened to Shu杆3 _2,
The rear part is provided with a spring ₁₅ with a seat 15 provided on the core 1 ₄ of the receiving blade 1 _1.
Was received under a compressed condition.

[0031] In the case of adjusting the length in rod 4, for fixing the driven lever 4 ₂ in position relative to Moto杆4 _1, locked to fix the driven lever 4 ₂ Moto杆4 ₁ 9 The basis
It is provided between 4 ₁ and the driven rod 4 ₂ .

[0032] The grip portion 9 ₁ of the locking device 9 in the embodiment driven lever 4 ₂ provided on Moto杆4 _1, stop pin Moto杆4 ₁ and driven lever 4 ₂
9 ₂ at but is made of shall fastened, the locking device 9 is not limited to embodiments, but may be short Moto杆4 in _{which 1} to the driven lever 4 ₂ can be firmly fixed .

Reference numeral 10 denotes a stopper for locking the drive handle 2, and in the embodiment, a latch type stopper 10 axially fixed to the drive handle 2 is engaged with a step portion 4 ₃₁ provided on a handle 4 _3. actuation handle 2 ₁ by coupling can continue to the closed state, by actuation handle 2 release is locked when removing the stopper 10 from the stepped portion 4 ₃₁ reversed are provided between the drive wheel 2 and the handle 4 ₃ It can be opened by the elastic force of the drive spring 11.

The guide portion 5 ₁₁ of the holding body 5 ₁ described above has a V-shaped recess in the embodiment, but in addition to this, the hanging portion 5 ₂₁ of the rocking body 5 ₂ has a recessed portion of the main rod 3 ₂ . It may be a long hole that can be engaged in. in short oscillator 5 _second engaging portion 5 ₂₁ is guiding part 5 ₁₁ that can engage the cut-outs 3 _21, moreover concave portion 3 Anything that can support the hanging portion 5 ₂₁ together with ₂₁ can be used.

[0035]

When, according to the invention] According to the high branch pruner of this invention, when extending and retracting rod 4 for adjusting the length of the rod 4 to a length suitable for work of pruning or Tohate is支受to Moto杆4 ₁ and rod 4 for as driven lever 4 ₂ movement connecting rods 3 in the rod 4 together stretch can fine length adjustment of the rod to allow the stretch close to steplessly or continuously.

The change in the length of the connecting rod 3 is caused when the drive rod 3 ₁ does not pull the oscillating body 5 ₂ of the switch body 5,
Oscillator 5 _second engaging portion 5 ₂₁ of the main lever 3 ₂ main lever 3 ₂ of concave portions 3 follower rod ₂₁ rod 4 for engagement is loose against 4 ₂ connecting rods 3 to stretch to Moto杆4 ₁ it can also be in the retaining body 5 ₁ inside in free connecting rod 3 of a length corresponding to the length of possible rod 4 to slide the switch body 5.

[0037] Then the length of the rod 4 is set to a desired length, those ready for just cutting fixed by the locking device 9 to the driven lever 4 ₂ Moto杆4 _1, followed by the drive driving rod connecting the handle 2 draw bow to limit the thereto 3 ₁ oscillator 5 ₂ was operated oscillator 5 _second engaging portion 5 ₂₁ retaining body 5 _first guiding part 5 ₁₁ and the main switch body 5 lever 3 ₂ of concave portion 3 ₂₁ and to firmly engaged with tensile force of the driving rod 3 ₁ drives the Shu杆3 ₂鋏体1 is intended to be operated.

[0038] That is intended to drive wheel 2 switch body 5 by simply actuating can operate the鋏体1 connects Shu杆3 ₂ and drive rod 3 ₁ continuous thereto, the conventional way switch body When the drive handle 2 is loosened, the rod 4 and the connecting rod 3 can be freely expanded and contracted without requiring an operation mechanism for operation.
And draw bow to limit the drive wheel 2 and the main rod 3 _{and second} connecting rod 3 and the driving lever 3 ₁ can easily transmit power of the connected drive wheel 2 by the switch body 5 to the cutting edge 1 ₂ of鋏体1.

[0039] Next, in the switch body 5, the engagement between the engaging portion 5 ₂₁ and Shu杆3 ₂ oscillators 5 ₂ mainly rod 3 and _second concave portion 3 ₂₁ and the retaining body 5 ₁ derivatives 5 ₁₁ for hooking portion 5 ₂₁ in both engage these ensures engagement contact area becomes large,鋏体1
The engaging portion 5 ₂₁ accidentally during the operation it is advantageous for engagement with the contact area is large is hardly disengaged when鋏体1 without departing from Shu杆3 ₂ is subjected to large load.

The guiding part 5 ₁₁ of the retaining body 5 ₁ can be fitted positively確且reliably engaging portion 5 ₂₁ of the oscillator 5 ₂ to the main lever 3 ₂ of concave portions 3 _21.

The spring 7 retaining body 5 ₁ and engaging portion 5 ₂₁ of the oscillator 5 ₂ in that shrinkage force is provided between the oscillator 5 ₂ Shu杆3 ₂ of concave portions 3
_By urging the engagement member ₂₁ and the guide portion 5 _{11 in} a direction in which the engagement is continued, the delusion of the oscillating body 5 ₂ can be eliminated, and the hanging portion 5 ₂₁ is always positioned in the recessed portion 3 ₂₁ . Driven by rod 3 ₁ and main rod
3 ₂ and of the connecting and favorable operation of the drive wheel 2 can be transmitted immediately to鋏体1.

[0042] When moving the main rod 3 ₂ Shu杆3 ₂ of the concave portion 3
Although ₂₁ engaging portion 5 ₂₁ uplink engaging portion 5 ₂₁ opposite me oscillator 5 ₂ floats on the contractile force of the spring 7 deviates from the climb ride on the upper surface of Shu杆3 _2, at the next concave portion 3 ₂₁ the spring 7 is contracted rocking pull the body 5 ₂ in its lower latching portions 5 ₂₁ is to engage the guiding part 5 ₁₁ next concave portion 3 ₂₁ by eliminating shifts the resistance to the spring 7 from oscillator 5 ₂ minimum the swing time consuming part 5 ₂₁ main lever 3 ₂ cut-outs 3 ₂₁ next concave portion 3 ₂₁ concave portion 3 a migratory engaging portion 5 ₂₁ to the in the You can do it instantly because you don't need a search to match ₂₁ .

That is, since the connecting rod 3 can be expanded and contracted quickly, the rod 4 can be expanded and contracted quickly.

Further, in the spring 7, the main rod 3 ₂ is the driven rod 4 _{2 of the} rod 4.
It moved when changing the length of the connecting rod 3 with, the oscillator 5 ₂
When engaging portion 5 ₂₁ over the concave portion 3 ₂₁ out next concave portion 3 ₂₁ of Shu杆3 ₂ engaging portion 5 ₂₁ to the concave portion 3 ₂₁ together pull in contractile force of the spring 7 Concave part 3 ₂₁ and hanging part 5 ₂₁
Is positioned to make the connection between the main rod 3 ₂ and the drive rod 3 ₁ accurate and reliable, and to maintain the standby state in which the scissors body 1 can be opened and closed at any time.

As described above, according to the present invention, since the structure is simple, no failure occurs, and the rod 4 can be expanded and contracted together with the connecting rod 3 by a simple operation.

[Brief description of drawings]

FIG. 1 is a front view of an overall high branch pruning tool that is an embodiment of the present invention.

FIG. 2 is an enlarged front view in which a rod is cut off for explaining details of a connecting portion between a main rod and a drive rod which constitute a connecting rod.

FIG. 3 is an enlarged plan view in which a rod is cut off for explaining details of a connecting portion between a main rod and a drive rod which constitute a connecting rod.

FIG. 4 is an enlarged cross-sectional view taken along line AA of FIG. 2 in which a rod is omitted.

FIG. 5 is a view showing a state in which the hanging portion of the rocking body is separated from the guiding portion of the holding body and the recessed portion of the main rod in FIG.

FIG. 6 is a view showing a state in which the swinging body floats above the holding body and the hanging portion is disengaged from the recessed portion because the main rod expands and contracts with respect to the drive rod.

[Explanation of symbols]

1鋏体1 ₁ receiving blade 1 _second cutting edge 1 ₃ drive lever 1 ₄ core 1 ₅ seat 1 ₁₁ receptacle 1 ₂₁ pin 2 drive wheel 2 ₁ acting portion 3 connecting rod 3 ₁ driving rod 3 _second main lever 3 ₂₁ concave portion 4 Sao 4 ₁ Moto杆4 _second driven lever 4 ₃ grip hand 4 ₃₁ step portion 5 switches body 5 ₁ retaining member 5 ₁₁ guiding part 5 _second rocking body 5 ₂₁ engaging portion 5 ₁₂ stop pin 5 ₂₂ drive lever 5 ₂₃ Spindle 6 Shaft 7 Spring 8 Spring 9 Lock device 9 ₁ Grip part 9 ₂ Stop pin 10 Stopper 11 Drive spring

Claims (1)

[Scope of utility model registration request] 1. A Moto杆4 ₁ and driven rod engaging stretchable thereto
Drive rod 1 ₃ of the cutting blade 1 ₂ of the scissor body 1 including the rod 4 composed of 4 ₂ and the receiving blade 1 ₁ and the cutting blade 1 ₂ supported by the front portion of the rod 4
And the connecting rod 3 for driving the scissors body 1 provided between the drive handle 2 swingably engaged with the rear portion of the rod 4 and the connecting rod 3 which can be expanded and contracted, the drive rod forming the connecting rod 3. 3 ₁
The switch body 5 to the disconnected connection between Shu杆3 ₂ connected to the main lever
It is provided between 3 ₂ and the drive rod 3 _1, and when the drive rod 3 ₁ is ground, the switch body 5 strongly connects the main rod 3 ₂ to the drive rod 3 ₁ , and the drive rod 3 ₁ is in the opposite direction. When it is returned to the state of the source is operated in those switch body 5 was set to disconnect the drive rod 3 ₁ and Shu杆3 _2, the main lever 3 ₂ is cut-outs 3 ₂₁ towards the longitudinal direction
Are installed in series at desired intervals, and the switch body 5 has a main rod inside the holding body 5 _{1 on} the side wall portion of the holding body 5 ₁ which holds the main rod 3 _2.
3 the induction unit 5 ₁₁支受the engaging portion 5 ₂₁ Sort swing rod 5 ₂ provided with ₂ and facing Shu杆3 ₂ of concave portion 3 _21, also retaining body 5 ₁
Facing the concave portion 3 ₂₁ and the retaining body 5 _first guiding part 5 ₁₁ of Shu杆3 ₂ in the, yet swinging with engaging portion 5 ₂₁ which engages with the guiding part 5 ₁₁ with these cut-outs 3 ₂₁ the body 5 ₂ fasten swingably shaft to retaining body 5 ₁ a shaft 6 as lifting the engaging portion 5 ₂₁ off the engaging relative guiding part 5 ₁₁ with the concave cutout portion 3 _21, further oscillator 5 ₂
Between the retaining body 5 ₁ toward the direction of engaging portion 5 ₂₁ of the oscillator 5 ₂ is engaged with the guiding part 5 ₁₁ of Shu杆3 ₂ of concave portions 3 ₂₁ and the retaining member 5 ₁ a spring 7 which biases provided, and is biased toward the direction engaging portion 5 ₂₁ in the drive lever 5 ₂₂ of the oscillator 5 ₂ to the strong engagement to concave portion 3 ₂₁ and the induction portion 5 ₁₁ Metropolitan With main rod 3 ₂
The front portion of the drive rod 3 ₁ a grinding operation to constitute a link mechanism engaged with the support shaft 5 _23, and engages the rear portion to the working portion 2 ₁ of the driving wheel 2, and Shu杆3 ₂ Shu杆the front portion of the drive lever 1 ₃ of the action of the cutting edge 1 ₂ etc.鋏体1 3 ₂ and the drive lever 1 ₃
And in is engaged by a pin 1 ₃₁ so as to constitute a link mechanism, yet cutting edge 1 ₂ etc. to acceptor such as receiving blades 1 ₁ between the receiving body, such as Shu杆3 ₂ and receiving blades 1 ₁ A high-branch pruning tool characterized in that a spring 8 for urging the action body of FIG.