JP3127740U - Standing cutting aid - Google Patents

Abstract

The present invention provides an easy-to-carry and inexpensive stand-cutting device that can be used without any trouble even on an inclined surface such as a mountain or other places where heavy machinery cannot be carried.
An upper member is connected to an upper end of a lower member so as to be rotatable in the vertical direction with respect to the lower member, and the lower member is connected to a base of a tree. A standing tree characterized in that a lower side fixing means 9 for fixing to 7a is provided, and the upper member 5 is provided with an upper side fixing means 11 for fixing the upper member 5 to the upper part 7b of the standing tree 7. Cutting assist device.
[Selection] Figure 1

Description

  The present invention relates to a standing tree cutting assist device, and more specifically, when cutting a standing tree, the upper part of the standing tree separated from the base of the standing tree is safely brought down to the ground in a predetermined direction or safely to the ground. The present invention relates to a standing tree cutting auxiliary device that can be lowered.

  When cutting a standing tree, it is required from the standpoint of safety to accurately depress the upper part of the standing tree separated from the base of the standing tree in a predetermined direction. However, the standing tree separated from the base of the standing tree is required. It is not always easy to reliably control the upper part and to tilt it precisely in a predetermined direction.

  In order to solve such a problem, Japanese Patent Laid-Open No. 8-228615 discloses a cutting work machine such as a standing tree in which an upper swing body is provided on a lower traveling body and an attachment is provided on the upper swing body. .

  This cutting machine such as a standing tree has a grapple connected to the tip of the attachment, and a cutting device provided in the front part of the lower traveling body.

That is, in the cutting machine for standing trees, the base of the standing trees is cut by the cutting device at the front part of the lower traveling body in the state where the upper part of the standing trees is gripped by the grapple at the tip of the attachment, and the upper part of the standing trees is moved to the upper swing body. And the attachment are placed at a predetermined ground position.
JP-A-8-228615

  However, the conventional cutting work machine such as wood has the following problems.

(A) The conventional cutting machine such as a standing tree is a heavy machine in which an upper swing body is provided on a lower traveling body and an attachment is provided on the upper swing body, and thus is extremely expensive.

(B) The conventional cutting work machine such as standing trees is a heavy machine provided with an upper turning body on the lower traveling body and an attachment provided on the upper turning body. It cannot be used where it cannot.

  The present invention has been made in order to solve the above-described problems in the conventional cutting work machine such as standing trees.

That is, the present invention has been made to provide an easy-to-carry and inexpensive stand-cutting auxiliary device that can be used without any trouble even on an inclined surface such as a mountain or other places where heavy machinery cannot be carried.

  In order to solve the above problems, the present invention provides the following standing tree cutting assisting device.

(1) An upper member is connected to the upper end of the lower member so as to be pivotable in the vertical direction with respect to the lower member, and the lower member is fixed to the bottom of the standing tree. An apparatus for assisting cutting of standing trees, comprising: fixing means, wherein the upper member is provided with upper fixing means for fixing the upper member to the upper part of the standing tree.

(2) One end of the lower fixing arm is provided with a lower fixing means for fixing the lower fixing arm to the base of the standing tree, and the upper rotating arm is arranged in the vertical direction at the other end of the lower fixing arm. The upper rotary arm is provided with an upper fixing means for fixing the upper rotary arm to the upper part of the standing tree, and the other end of the upper rotary arm is provided with the upper rotary arm. A standing tree cutting assist device characterized in that a driving means for rotating the moving arm in the vertical direction is connected (Claim 2).

(3) The fixing means includes a bolt penetrating the standing tree in a substantially horizontal direction (Claim 3).

[Operation of device]
[Convention of claim 1]
When cutting a standing tree, first, the standing tree cutting assisting device is fixed to the standing tree according to the direction in which the standing tree should be brought down. That is, the lower member is fixed to the base of the standing tree by the lower fixing means, and the upper member is fixed to the upper part of the standing tree by the upper fixing means.

  In this state, after cutting the standing tree in a horizontal direction at a height near the rotation center of the upper member, the upper member is rotated with respect to the lower member, and the upper part of the standing tree is brought down. Since the upper member rotates only in a predetermined direction with respect to the lower member, the upper portion of the standing tree falls in the predetermined direction. See FIG.

In the case of bamboo or thin wood, after fixing the standing tree cutting auxiliary device to the standing tree, the standing tree is horizontally arranged at two cutting positions (43) and (45) between the lower fixing means and the upper fixing means. Cut, remove the middle part (7c) between the upper and lower cutting positions (43), (45), loosen the upper fixing means and lower the upper remaining part (7b ') of the standing tree onto the base (7a) of the standing tree. See FIG. By repeating this operation, the upper part (7b) of the standing tree is removed while being cut into a plurality of parts.

[Convention of claim 2]
When cutting a standing tree, first, the standing tree cutting assisting device is fixed to the standing tree according to the direction in which the standing tree should be brought down. That is, the lower fixing arm is fixed to the base of the standing tree by the lower fixing means, and the upper rotating arm is fixed to the upper part of the standing tree by the upper fixing means.

  In this state, after cutting the standing tree in the horizontal direction at a height near the turning center of the upper turning arm, the upper turning arm is turned by the driving means to tilt the upper part of the standing tree.

  Since the upper rotating arm rotates only in a predetermined direction with respect to the lower fixed arm, the upper part of the standing tree falls down in the predetermined direction. See FIG.

[Convention of claim 3]
A substantially horizontal through hole is formed in the standing tree, and a bolt is inserted through the through hole to fix the standing tree cutting assisting device to the standing tree.

[Convention of claim 1]
According to the standing tree cutting assist device of the first aspect, the upper part of the standing tree separated from the base of the standing tree can be safely brought down to the ground in a predetermined direction or can be safely lowered to the ground. This standing tree cutting assisting device is easy to carry, and can be used without any trouble even on inclined surfaces such as mountains and other places where heavy machinery cannot be carried. Further, this standing tree cutting assist device has a simple structure and can be manufactured at low cost.

[Convention of claim 2]
According to the standing tree cutting assist device of claim 2, since the upper part of the standing tree is tilted by rotating the upper turning arm by the driving means, the standing tree separated from the base of the standing tree even in the case of a large standing tree. The upper part of the can be safely dropped on the ground in a predetermined direction. This standing tree cutting assisting device is easy to carry, and can be used without any trouble even on inclined surfaces such as mountains and other places where heavy machinery cannot be carried. Further, this standing tree cutting assist device has a simple structure and can be manufactured at low cost.

[Convention of claim 3]
According to the third aspect of the present invention, the standing tree cutting assisting device is securely fixed to the standing tree by the bolt that penetrates the standing tree in a substantially horizontal direction.

  The case shown in FIG. 1 will be described.

  What is shown by the code | symbol 1 is a lower member of a standing-wood cutting auxiliary device. For example, the upper member 5 is connected to the upper end of the lower member 1 via the rotation shaft 3 so as to be rotatable in the vertical direction with respect to the lower member 1.

  The lower member 1 is provided with a lower fixing means 9 for fixing the lower member 1 to the base portion 7a of the tree 7.

  The upper member 5 is provided with an upper fixing means 11 for fixing the upper member 5 to the upper portion 7b of the standing tree 7.

  Reference numeral 13 in FIG. 1 indicates a cutting position at which the standing tree 7 is cut in the horizontal direction.

  FIG. 2 shows an example of the lower fixing means 9 or the upper fixing means 11.

The lower fixing means 9 or the upper fixing means 11 in the example shown in FIG. 2 has a holding body 12 fixed to the lower member 1 or the upper member 5, the holding body 12 is provided with a recess 15, and the recess 15 has a chain. The fastening means 17 such as a belt, a wire, and a lever is provided so as to be openable and closable and loosen.

In the example shown in FIG. 2, the fastening means 17 provided in the recess 15 of the holding body 12 is opened, and the fastening means 17 is tightened in a state where the recess 15 is in contact with the base 7 a or the upper part 7 b of the stand 7. Thus, the lower member 1 or the upper member 5 is fixed to the base portion 7a or the upper portion 7b of the standing tree 7.

  3 and 4 show another example of the lower fixing means 9 or the upper fixing means 11.

  The lower fixing means 9 or the upper fixing means 11 in the example shown in FIGS. 3 and 4 has a holding body 19 fixed to the lower member 1 or the upper member 5, and the holding body 19 includes a substantially U-shaped portion 21. In addition, a bolt 23 that penetrates the standing tree 7 in a substantially horizontal direction is screwed into the opposing holding legs 21 a and 21 b of the U-shaped portion 21. What is indicated by reference numeral 25 is a nut.

  In the case shown in FIGS. 3 and 4, notches 27 a and 27 b are formed in the standing tree 7 in accordance with the substantially U-shaped portion 21 in the holding body 19 and an insertion hole 29 through which the bolt 23 is inserted is formed.

  Next, the example shown in FIG. 5 will be described.

  What is indicated by reference numeral 31 is a lower fixed arm in the standing tree cutting auxiliary device. One end of the lower fixing arm 31 is provided with a lower fixing means 33 for fixing the lower fixing arm 31 to the base 7 a of the standing tree 7.

  An upper rotation arm 37 is attached to the other end of the lower fixed arm 31 via a rotation shaft 35 so as to be rotatable in the vertical direction.

  One end of the upper rotating arm 37 is provided with an upper fixing means 39 for fixing the upper rotating arm 37 to the upper portion 7 b of the standing tree 7.

  The lower fixing means 33 and the upper fixing means 39 are preferably the same as the lower fixing means 9 and the upper fixing means 11 shown in FIGS. 3 and 4, respectively.

The other end of the upper turning arm 37 is connected to a driving means 41 for turning the upper turning arm 37 in the vertical direction.

As the driving means 41, for example, a cylinder such as a hydraulic cylinder is used. In addition, what is shown by the code | symbol 42 is a cutting position which cut | disconnects the standing tree 7 in a substantially horizontal direction.

  FIG. 6 shows an example of a usage state of a device similar to the standing tree cutting assisting device shown in FIG. That is, mainly in the case of bamboo or thin wood, after fixing the standing tree cutting auxiliary device to the standing tree 7, the standing tree 7 is moved at two cutting positions 43 and 45 between the lower fixing means 9 and the upper fixing means 11. Cutting in the horizontal direction, removing the intermediate part 7c between the two cutting positions 43, 45 at the top and bottom, loosening the upper fixing means 11, and lowering the upper remaining part 7b 'of the tree 7 onto the base 7a of the tree 7. By repeating this operation, the upper portion 7b of the standing tree 7 is removed while being cut into a plurality of portions.

It is a side view showing an example of a standing tree cutting auxiliary device according to the present invention. It is a top view which shows an example of a lower side fixing means or an upper side fixing means. It is a top view which shows another example of a lower side fixing means or an upper side fixing means. It is sectional drawing same as the above. It is a side view which shows another example of the standing tree cutting | disconnection assistance apparatus by this invention. It is a side view which shows another example of the use condition of the stand cutting assistance apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower member 3 Rotating shaft 5 Upper member 7 Standing tree 7a Base part 7b Upper part 7b 'Upper remaining part 7c Middle part 9 Lower fixing means 11 Upper fixing means 12 Holding body 13 Cutting position 15 Recess 17 Tightening means 19 Holding body 21 U-shaped part 21a Holding leg 21b Holding leg 23 Bolt 25 Nut 27a Notch part 27b Notch part 29 Insertion hole 31 Lower fixing arm 33 Lower fixing means 35 Rotating shaft 37 Upper rotating arm 39 Upper fixing means 41 Driving means 42 Cutting position 43 Cutting position 45 Cutting position

Claims (3)

  An upper member is connected to the upper end of the lower member so as to be pivotable in the vertical direction with respect to the lower member, and the lower member has lower fixing means for fixing the lower member to the base of the standing tree. A standing tree cutting assisting device, wherein the upper member is provided with an upper fixing means for fixing the upper member to an upper portion of the standing tree.   One end of the lower fixed arm is provided with a lower fixing means for fixing the lower fixed arm to the base of the standing tree, and the upper rotary arm is rotated in the vertical direction at the other end of the lower fixed arm. The upper rotary arm is provided with an upper fixing means for fixing the upper rotary arm to the upper part of the standing tree, and the upper rotary arm is connected to the other end of the upper rotary arm. A standing tree cutting assisting device, wherein driving means for rotating in the vertical direction are connected. The standing tree cutting assisting device according to claim 1 or 2, wherein the fixing means includes a bolt penetrating the standing tree in a substantially horizontal direction.

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