JP2019004821A - Felling cutter - Google Patents

Felling cutter Download PDF

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JP2019004821A
JP2019004821A JP2017125410A JP2017125410A JP2019004821A JP 2019004821 A JP2019004821 A JP 2019004821A JP 2017125410 A JP2017125410 A JP 2017125410A JP 2017125410 A JP2017125410 A JP 2017125410A JP 2019004821 A JP2019004821 A JP 2019004821A
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cutting
pivot
grapple
cutting blade
head
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JP6976739B2 (en
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松本　良三
Ryozo Matsumoto
良三 松本
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Abstract

To provide a felling cutter formed of a grapple which holds a timber and a cutting blade for cutting a timber in the vicinity of a bottom, in which the cutting blade is stored when it is not used, and the grapple can grip a log which is fallen sidelong.SOLUTION: There is provided a felling cutter comprising: a head (4) attached through a hanger (8) to an attachment (7) attached to a boom arm (6) of a caterpillar (1); left and right grapples (17, 18) which are coupled to a head body (4a) rotatably around a pivot (20); a hydraulic cylinder (23) actuating the grapples so as to be opened and closed around the pivot; a cutting blade (29) which is coupled to the head body rotatably by a pivot (33), and is rotatable between a cutting position and a storage position; and a hydraulic cylinder (36) for actuating so as to rotate the cutting blade around the pivot, and further comprising a pair of reception parts (39, 40) for receiving a timber (T) for resisting to cutting force in cutting time.SELECTED DRAWING: Figure 3

Description

本発明は、立木を切り倒したり、横倒しの丸太を掴んで運んだりすることができる伐倒切断機に関する。   The present invention relates to a felling and cutting machine that can cut down standing trees or grab and carry a lying log.

この種の伐倒切断機は、掴み装置及び切断装置を含むヘッドを有し、該ヘッドは、無限軌道車のブーム・アームに操作可能に取り付けられたアタチメントにハンガーを介して取り付けられ、ハンガーは、ジョイント及びジョイントに旋回可能に取り付けられたハンギングブラケットを有する。ヘッドは、ハンギングブラケットに枢着連結され、油圧シリンダにより水平位置と縦向き位置との間で回転されるようになっている。ヘッドの掴み装置は、ヘッドの左右側でヘッドのフレームに枢着連結され、油圧シリンダによりた開閉可能に操作されるグラップルを含み、また切断装置は、ヘッドに装着されたチエーンソーを含む。   This type of felling and cutting machine has a head including a gripping device and a cutting device, which head is attached to an attachment operably attached to the boom arm of the tracked vehicle via a hanger, And a hanging bracket pivotably attached to the joint. The head is pivotally connected to the hanging bracket, and is rotated between a horizontal position and a vertical position by a hydraulic cylinder. The head gripping device includes a grapple pivotally connected to the head frame on the left and right sides of the head and operated to be opened and closed by a hydraulic cylinder, and the cutting device includes a chain saw mounted on the head.

伐倒作業に当たっては、ヘッドを縦向き位置にして、ブーム・アームの操縦でヘッドを立木に近づけ、閉じられるグラップルで木立を抱き抱え、しかる後、チエーンソーを作動して立木を切断する。立木の太さによっては、チエーンソーの一回の作動では切断できない場合がある。ハンガーのハンギングプケットを油圧モータによりジョイントに対して回転ささせて、木の周りにヘッドの位置変えを行い、再びチエーンソーを作動して切断作業を繰り返す。立木の切断は、チエーンソーの高速走行によって行なわれる。   In the felling work, the head is set to the vertical position, the head is brought close to the standing tree by maneuvering the boom arm, the tree is held by the closed grapple, and then the chain saw is operated to cut the standing tree. Depending on the thickness of the standing tree, it may not be cut by a single operation of the chain saw. The hanger's hanging bucket is rotated with respect to the joint by a hydraulic motor, the head is repositioned around the tree, and the chain saw is operated again to repeat the cutting operation. The cutting of the standing trees is performed by a chain saw running at high speed.

ヘッドの縦向き横位置では、チエーンソーは、木の根もと近くにあり、切断中木の周りの土、石や砂利に遭遇し易い。作動中チエーンソーは、高速で走行するから、土、石や砂利に遭遇すると、これらを弾き飛ばし、その結果、チエーンソーの刃を損傷させてしまうことがある。   In the vertical and horizontal position of the head, the chain saw is near the root of the tree and is likely to encounter soil, stones and gravel around the cutting tree. During operation, the chain saw travels at high speeds, so when it encounters dirt, stones or gravel, it blows them away, which can damage the chain saw blade.

本発明の目的は、立木を抱き抱えるグラップルと立木を根元近くで切断する切断刃の組み合わせからなり、切断刃を使用しないときには、格納され、グラップルで横倒しの丸太を掴むことができる伐倒切断機を提供することにある。   An object of the present invention is a felling and cutting machine comprising a combination of a grapple holding a tree and a cutting blade that cuts the tree close to the root, and when not using the cutting blade, it is stored and can be used to grab a laid log with the grapple Is to provide.

本発明の上記の目的は、無限軌道車のブーム・アームに操作可能に取り付けられたアタチメントにハンガーを介して取り付けられたヘッドと、ヘッド本体に枢軸により回動可能に連結された左右のグラップルと、該グラップルを、枢軸を中心に開閉させるように作動する油圧シリンダと、ヘッド本体に枢軸により回動可能に連結され、切断位置と格納位置との間で回転できる切断刃と、該切断刃を枢軸を中心に回転させるように作動する油圧シリンダと、を含み、更に、切断中切断力に抵抗するため、立木を受ける前後一対の受け部をヘッド本体に設けた伐倒切断機を提供することによって達成される。   The above object of the present invention is to provide a head attached to an attachment operably attached to a boom arm of an endless track vehicle via a hanger, and left and right grapples pivotally connected to a head body by a pivot. A hydraulic cylinder that operates to open and close the grapple around the pivot, a cutting blade that is pivotally connected to the head body by the pivot, and that can rotate between a cutting position and a retracted position; and To provide a felling and cutting machine having a pair of front and rear receiving portions for receiving a standing tree in a head body in order to resist cutting force during cutting, and a hydraulic cylinder that operates to rotate around a pivot axis Achieved by:

［作用］
ハンガーから吊り下げられたヘッドを縦向きにし、左右のグラップルを開いた状態で立木に近づけ、グラップルを閉じて立木を抱き抱え、次いで切断刃による押し切り作用で立木を切断する。その際ヘッド本体の受け部が立木を受け止めるため、木が切りやすく縦割れを起こすことがない。1回の切断操作で立木を切り倒せない場合には、切断刃を戻してヘッドを立木の周りに回転させてヘッドの位置変えを行い、切断刃による切断操作を適宜繰り返す。 [Action]
The head suspended from the hanger is turned vertically, the left and right grapples are opened, approach the standing tree, the grapple is closed, the standing tree is held, and then the standing tree is cut by a push cutting action by a cutting blade. At that time, since the receiving portion of the head body receives the standing tree, the tree is easy to cut and does not cause vertical cracking. If the standing tree cannot be cut down by one cutting operation, the cutting blade is returned, the head is rotated around the standing tree, the head is repositioned, and the cutting operation by the cutting blade is repeated as appropriate.

立木の切断作業の様子を示す無限軌道車及び本発明による伐倒切断機の全体側面図である。It is a whole side view of the endless track vehicle which shows the state of cutting work of a tree, and the felling cutting machine by this invention. 水平位置で示す伐倒切断機の側面図である。It is a side view of the felling cutting machine shown in a horizontal position. 伐倒切断機の正面図である。It is a front view of a felling and cutting machine. 伐倒切断機の平面図である。It is a top view of a felling cutting machine. 伐倒切断機の底面図である。It is a bottom view of a felling and cutting machine. 図５の矢印６−６線から切断刃の部分の正面図である。It is a front view of the part of a cutting blade from the arrow 6-6 line of FIG. グラップル部分の正面図である。It is a front view of a grapple part. 図５の矢印８−８から見た図である。It is the figure seen from the arrow 8-8 of FIG. 図５の矢印９−９から見た図である。It is the figure seen from the arrow 9-9 of FIG.

図1を参照すると、本発明による伐倒切断機1は、掴み装置2及び切断装置3を含むヘッド4を有し、該ヘッドは、無限軌道車5のブーム・アーム6に操作可能に取り付けられたアタチメント7にハンガー8を介して取り付けられる。ハンガー８は、ジョイント9及びジョイントに旋回可能に取り付けられ、油圧モータにより回転されるようになったハンギングブラケット10を有する。ヘッド4は、ハンギングブラケット10にピン11で枢着連結され、油圧シリンダ12により水平位置と縦向き位置との間で回転されるようになっている。   Referring to FIG. 1, a felling and cutting machine 1 according to the present invention has a head 4 including a gripping device 2 and a cutting device 3, which is operably attached to a boom arm 6 of an endless track vehicle 5. It is attached to the attachment 7 via the hanger 8. The hanger 8 includes a joint 9 and a hanging bracket 10 that is pivotally attached to the joint and is rotated by a hydraulic motor. The head 4 is pivotally connected to the hanging bracket 10 by a pin 11, and is rotated between a horizontal position and a vertical position by a hydraulic cylinder 12.

ヘッドの掴み装置2は、図２乃至５及び７図に明瞭に示されているように、ヘッド本体４ａに設けられた左側２本のグラップル１７，１７と右側１本のグラップル１８とを含む。連結管１４，１５が、グラッブル１７，１７及びグラップル１８をそれぞれ貫いて長手方向に延び、そしてグラッブル１７，１７及びグラップル１８にそれぞれ固定して取り付けられている。グラップル１７，１７及びグラップル１８は、ヘッド本体４ａのフレームを構成する前後一対のブラケット１９，１９に枢軸２０，２０で連結される。グラップル１８は、単一のものであるから、枢軸２０の支持を確保するため、枢軸２０は、連結管１５に固定して設けられた前後２対のブラケット２１，２１で支持される。かくして、グラップル１８は、グラップル１７と１７との間にあって、グラップル１７，１８がそれらの枢軸を中心に回動するとき、グラップル１７，１８は、互いに交差できるように構成されている。   As clearly shown in FIGS. 2 to 5 and 7, the head gripping device 2 includes two left grapples 17 and 17 and one right grapple 18 provided on the head body 4a. Connecting pipes 14 and 15 extend longitudinally through the grabbles 17 and 17 and the grapple 18, respectively, and are fixedly attached to the grabbles 17 and 17 and the grapple 18, respectively. The grapples 17 and 17 and the grapple 18 are connected to a pair of front and rear brackets 19 and 19 constituting a frame of the head body 4a by pivots 20 and 20, respectively. Since the grapple 18 is a single piece, the pivot 20 is supported by two pairs of front and rear brackets 21 and 21 fixed to the connecting pipe 15 in order to ensure the support of the pivot 20. Thus, the grapple 18 is located between the grapples 17 and 17 so that when the grapples 17 and 18 rotate about their pivot axes, the grapples 17 and 18 can intersect each other.

油圧シリンダ２３は、その後端が右グラップル１８の枢軸２０に連結され、プランジャ端が、グラップル１７と一体をなす、左グラップルの連結管１４に固定して取り付けられた一対のブラケットアーム２４，２４にピボットピン２５で連結されている。一方のグラップルの回転を他方のグラップルに伝えるため、同調稈２６が左右グラップル１７と１８を互いに連結する。具体的には、同調稈２６は、一端がプケットアーム２４，２４にピン２７，２７で連結され、他端がグラップル１８及びこれと一体をなすブラケット２１にピン２８，２８で連結される。かくして油圧シリンダ２３の伸張、収縮により、同調稈２６を介してグラップル１７，１８を、枢軸２０，２０を中心に同期して開閉させることができる。   The hydraulic cylinder 23 has a rear end connected to the pivot 20 of the right grapple 18, and a plunger end fixed to a pair of bracket arms 24, 24 fixedly attached to the left grapple connecting pipe 14. They are connected by a pivot pin 25. In order to transmit the rotation of one grapple to the other grapple, the tuning rod 26 connects the left and right grapples 17 and 18 to each other. Specifically, one end of the tuning rod 26 is connected to the pucket arms 24, 24 by pins 27, 27, and the other end is connected to the grapple 18 and the bracket 21 integrated therewith by pins 28, 28. Thus, by the expansion and contraction of the hydraulic cylinder 23, the grapples 17 and 18 can be opened and closed in synchronization with the pivots 20 and 20 through the synchronization rod 26.

切断装置３は、図２乃至７でわかるように、ヘッド本体４ａの後部に配置された切断刃２９を含む。切断刃２９は、好ましくは、反り刃からなるのがよい。スリーブ３０が、ヘッド本体４ａのフレームを構成する前後一対のブラケット３１，３２間に設けられた枢軸３３で回転自在に支持され、切断刃２９は、スリーブ３０に固着された取付板３４にボルト止め３５されている。切断刃２９を枢軸３３を中心に回転させるように作動する油圧シリンダ３６が設けられている。油圧シリンダ３６は、一端がブラケット３１，３２間に設けられたピボットピン３７に連結され、プランジャ端が取付板３１にピボットピン３８で連結されている。かくして、油圧シリンダ３８の伸張、収縮により、切断刃２９を、枢軸３３を中心に切断位置（開いた位置）と格納位置との間で回転させることができる。   As can be seen in FIGS. 2 to 7, the cutting device 3 includes a cutting blade 29 disposed at the rear portion of the head body 4a. The cutting blade 29 is preferably a warped blade. A sleeve 30 is rotatably supported by a pivot 33 provided between a pair of front and rear brackets 31 and 32 constituting a frame of the head body 4a, and the cutting blade 29 is bolted to a mounting plate 34 fixed to the sleeve 30. 35. A hydraulic cylinder 36 is provided that operates to rotate the cutting blade 29 about the pivot 33. One end of the hydraulic cylinder 36 is connected to a pivot pin 37 provided between the brackets 31 and 32, and a plunger end is connected to the mounting plate 31 by a pivot pin 38. Thus, by the expansion and contraction of the hydraulic cylinder 38, the cutting blade 29 can be rotated between the cutting position (open position) and the retracted position about the pivot 33.

図５、８及び９でわかるように、切断刃２９による切断中立木を受ける一対の受け部３９，４０が切断刃２９６の前後に設けられる。受け部３９は、ヘッド本体４ａのブラケット３１の中央下部に円弧面として存在し、また受け部４０は、本体に固定して設けられた受け板の中央下部に円弧面として存在する。受け部３９，４０は、切断刃の両面に近接して位置することが望ましい。受け部間の間隔が広すぎると立木の受け止めがわるくなり、切断刃により立木の切断が巧くいかず、ときとして材に割れを引き起こしてしまうことがある。   As can be seen in FIGS. 5, 8, and 9, a pair of receiving portions 39 and 40 that receive a neutral tree cut by the cutting blade 29 are provided in front of and behind the cutting blade 296. The receiving part 39 exists as a circular arc surface at the center lower part of the bracket 31 of the head main body 4a, and the receiving part 40 exists as an arc surface at the central lower part of a receiving plate fixed to the main body. It is desirable that the receiving portions 39 and 40 are located close to both surfaces of the cutting blade. If the spacing between the receiving portions is too wide, the stand will not be able to receive the stand, and the cutting blade will not cut the stand well, and sometimes the material will be cracked.

立木の切り倒しにあたり、無限軌道車５のブーム・アーム６に操作可能に取り付けられたアタチメント7からハンガー8を介して取り付けられ伐倒切断機のヘッド４を油圧シリンダ12により水平位置から縦向き位置にする。左右のグラップル１７，１８を開いた状態で立木Ｔに近づけ、油圧シリンダ２３を伸張させてグラップル１７，１８を閉じて立木を抱き抱える。これにより立木は、グラップル１７，１８でしっかりと保持される。縦向き位置では、切断刃２９は、立木Ｔの根元に近い位置にある（図１参照）。次いで油圧シリンダ３６を伸張させて切断刃２９を、枢軸３３を中心に回転させ、立木Ｔを一対の受け部３９，４０で受け止めながら押し切り作用で立木を切断する。1回の切断操作で立木を切り倒せない場合には、油圧シリンダ３６の収縮により切断刃２９を戻し、ヘッド１を立木の周りに回転させてヘッド１の位置変えを行い、切断刃２９による切断操作を適宜繰り返す。切断された木は、グラップルで抱えられたままヘッド４と共に倒される。   When cutting down a standing tree, the head 4 of the felling cutting machine attached from the attachment 7 operably attached to the boom arm 6 of the endless track vehicle 5 through the hanger 8 is moved from the horizontal position to the vertical position by the hydraulic cylinder 12. To do. The left and right grapples 17 and 18 are opened and brought close to the tree T, the hydraulic cylinder 23 is extended, the grapples 17 and 18 are closed, and the tree is held. Accordingly, the standing tree is firmly held by the grapples 17 and 18. In the vertical position, the cutting blade 29 is in a position close to the root of the standing tree T (see FIG. 1). Next, the hydraulic cylinder 36 is extended to rotate the cutting blade 29 about the pivot 33, and the standing tree T is cut by a push-off action while the standing tree T is received by the pair of receiving portions 39 and 40. When the cutting tree cannot be cut down by one cutting operation, the cutting blade 29 is returned by contraction of the hydraulic cylinder 36, the head 1 is rotated around the standing tree, the position of the head 1 is changed, and the cutting by the cutting blade 29 is performed. Repeat the operation as appropriate. The cut tree is brought down together with the head 4 while being held by the grapple.

本発明によれば、回転させる切断刃により、立木を押し切りのように切断するようにしたから、立木の周りに存在するかもしれない土，石や砂利に遭遇しても、これらを弾き飛ばすことがなく、従って刃を傷めることがない。切断刃による立木の切断中立木は、一対の受け部で受け止められているから、立木には歪んだ力が加わらないため、木に割れが入らない。   According to the present invention, the cutting blade is rotated like a push-cut by the rotating cutting blade, so that even if it encounters soil, stones or gravel that may exist around the standing tree, it will be blown away. So there is no damage to the blade. Since the neutral tree cut by the cutting blade is received by the pair of receiving portions, the tree is not cracked because a distorted force is not applied to the tree.

本発明によれば伐倒切断機では、切断刃が格納位置にあるとき、グラップルは、切り倒されて横になっている材木を１本以上掴んで場所から場所へ運んだり、運搬車に積み込んだりするのにも使うことができ，林業機械として大変有用である。   According to the present invention, in the felling and cutting machine, when the cutting blade is in the retracted position, the grapple grips one or more timbers that have been cut down and lie down, carry them from place to place, or load them onto a transport vehicle. It can also be used as a forestry machine.

１ 無限軌道車
２ 掴み装置
３ 切断装置
４ ヘッド
４ａヘッド本体
６ ブーム・アーム
７ アタチメント
８ ハンガー
１７ グラップル
１８ グラップル
２０ 枢軸
２３ 油圧シリンダ
２９ 切断刃
３３ 枢軸
３６ 油圧シリンダ
３９ 受け部
４０ 受け部
Ｔ 立木 DESCRIPTION OF SYMBOLS 1 Endless track vehicle 2 Grasp device 3 Cutting device 4 Head 4a Head main body 6 Boom arm 7 Attachment 8 Hanger 17 Grapples 18 Grapples 20 Axis 23 Hydraulic cylinder 29 Cutting blade 33 Axis 36 Hydraulic cylinder 39 Receiving portion 40 Receiving portion T Standing tree T

Claims (2)

無限軌道車のブーム・アームに操作可能に取り付けられたアタチメントにハンガーを介して取り付けられたヘッドと、ヘッド本体に枢軸により回動可能に連結された左右のグラップルと、該グラップルを枢軸を中心に開閉させるように作動する油圧シリンダと、ヘッド本体に枢軸により回動可能に連結され、切断位置と格納位置との間で回転できる切断刃と、該切断刃を枢軸を中心に回転させるように作動する油圧シリンダと、を含み、更に、切断中切断力に抵抗するため、立木を受ける前後一対の受け部をヘッド本体に設けた伐倒切断機。   A head attached to an attachment operably attached to the boom arm of the endless track vehicle via a hanger, left and right grapples pivotally connected to the head body by a pivot, and the grapple around the pivot A hydraulic cylinder that operates to open and close, a cutting blade that is pivotally connected to the head body by a pivot, and that can rotate between a cutting position and a storage position; and that the cutting blade is rotated about the pivot And a hydraulic cutter that further includes a pair of front and rear receiving portions for receiving standing trees in order to resist cutting force during cutting. 一方のグラップルの回転を他方のグラップルに伝えるため、左右グラップルを互いに連結する同調稈を含む、請求項１による伐倒切断機。   2. A felling and cutting machine according to claim 1, comprising a tuning rod connecting the left and right grapples to each other to transmit rotation of one grapple to the other grapple.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02222623A (en) * 1989-02-23 1990-09-05 Sango Juki Kk Tree-cutting tool
JP2001336171A (en) * 2000-05-26 2001-12-07 Yanmar Diesel Engine Co Ltd Revolving device for hydraulic rotary grapple
JP2009065840A (en) * 2007-09-10 2009-04-02 Mitsuhiro Tanaka Bamboo-cutting attachment and bamboo-cutting operating machine provided with it
JP2012184584A (en) * 2011-03-04 2012-09-27 Muroto Tekkosho:Kk Power shovel attachment
JP2012202156A (en) * 2011-03-28 2012-10-22 Muroto Tekkosho:Kk Attachment with cutter for power shovel
JP2013163889A (en) * 2010-09-30 2013-08-22 Matsumoto System Engineering Kk Grapple bucket device
JP2014226095A (en) * 2013-05-23 2014-12-08 松本　良三 Device for cutting standing tree
JP2015223086A (en) * 2014-05-26 2015-12-14 博 小野寺 Continuous logging apparatus for timber, and continuous gripping apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02222623A (en) * 1989-02-23 1990-09-05 Sango Juki Kk Tree-cutting tool
JP2001336171A (en) * 2000-05-26 2001-12-07 Yanmar Diesel Engine Co Ltd Revolving device for hydraulic rotary grapple
JP2009065840A (en) * 2007-09-10 2009-04-02 Mitsuhiro Tanaka Bamboo-cutting attachment and bamboo-cutting operating machine provided with it
JP2013163889A (en) * 2010-09-30 2013-08-22 Matsumoto System Engineering Kk Grapple bucket device
JP2012184584A (en) * 2011-03-04 2012-09-27 Muroto Tekkosho:Kk Power shovel attachment
JP2012202156A (en) * 2011-03-28 2012-10-22 Muroto Tekkosho:Kk Attachment with cutter for power shovel
JP2014226095A (en) * 2013-05-23 2014-12-08 松本　良三 Device for cutting standing tree
JP2015223086A (en) * 2014-05-26 2015-12-14 博 小野寺 Continuous logging apparatus for timber, and continuous gripping apparatus

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