JP4359219B2 - Gathering machine - Google Patents

Description

  The present invention relates to a work machine including a winch mounted on a work machine for collecting materials such as a backhoe and a guide roller for guiding a wire extending from the winch.

Conventionally, a swivel excavation in which a backhoe is attached to the front end of a traveling unit (traveling machine body) as a working machine, an arm is rotatably attached to the tip of the boom of the backhoe, and a work attachment is attached to the tip of the arm Work machines are known. When such a work machine is used for, for example, a lumbering work in forestry, a winch and a guide roller for guiding a wire fed from a rotating drum of the winch are attached to the machine, and the work is attached to an arm. A grapple was attached as an attachment, and the wire extended from the winch was pulled or rolled while being guided by a guide roller, so that the felled timber could be pulled (see, for example, Patent Document 1). .
JP 2004-99225 A

  However, in the technique shown in Patent Document 1, the guide roller is arranged on the same axis with respect to the rotating drum of the winch and is supported by the arm so as to be swingable in the axial direction. The center of the guide roller and the center of the winch are shifted from each other, and the wire fluctuates between the guide roller and the rotating drum. Therefore, there has been a problem that the wire cannot be taken up in an orderly manner.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

According to the first aspect, the base end portion of the boom (12) is supported by the front end portion of the revolving frame (3) provided so as to be turnable with respect to the traveling machine body through the boom bracket (11) so as to be able to turn back and forth. The base end of the arm (13) is pivotally supported at the tip of the boom (12), and the attachment coupling device (14) is pivotally supported at the tip of the arm (13). In the collecting work machine in which the winch (30) is detachably attached to the attachment connecting device (14) as a collecting work attachment, the winch (30) includes a mounting frame (31), a wire ( 40) and a driving motor for rotating the rotating drum (32), and the bottom plate (31a) of the frame (31) is used as a grounding part in contact with the ground. The above Over arm (13), the other end of the boom (12) side, a guide roller for guiding the wire (40) that is feeding or rollable by the winch (30) (38, 42, 59) The left and right center of the rotating drum (32) provided in the winch (30) and the left and right center of the guide roller (38, 42, 59 ) are arranged on substantially the same plane.

In Claim 2, the work machine for collecting material according to claim 1, wherein the winch (30) includes a plurality of rotating drums (32), and the same number of guide rollers ( 42 ) as the rotating drum (32) are provided, Each guide roller ( 42 ) is arranged by shifting up and down and up and down.

According to a third aspect of the present invention, in the gathering work machine according to the first aspect, the rotating drum (32) provided in the guide roller (38, 42, 59 ) and the winch (30) is located on the front side of the arm (13). It is arranged in.

  As effects of the present invention, the following effects can be obtained.

According to the first aspect, the base end portion of the boom (12) is supported by the front end portion of the revolving frame (3) provided so as to be turnable with respect to the traveling machine body through the boom bracket (11) so as to be able to turn back and forth. The base end of the arm (13) is pivotally supported at the tip of the boom (12), and the attachment coupling device (14) is pivotally supported at the tip of the arm (13). In the collecting work machine in which the winch (30) is detachably attached to the attachment connecting device (14) as a collecting work attachment, the winch (30) includes a mounting frame (31), a wire ( 40) and a driving motor for rotating the rotating drum (32), and the bottom plate (31a) of the frame (31) is used as a grounding part in contact with the ground. The above Over arm (13), the other end of the boom (12) side, a guide roller for guiding the wire (40) that is feeding or rollable by the winch (30) (38, 42, 59) Since the right and left center of the rotating drum (32) provided in the winch (30) and the left and right center of the guide roller (38, 42, 59 ) are arranged on substantially the same plane, the wire is connected to the rotating drum of the winch and the guide. It becomes possible to wind up in an orderly manner without wobbling between the rollers, and the wire can be prevented from being rolled up.

In Claim 2, the work machine for collecting material according to claim 1, wherein the winch (30) includes a plurality of rotating drums (32), and the same number of guide rollers ( 42 ) as the rotating drum (32) are provided, Since each guide roller ( 42 ) is arranged so as to be shifted up and down, it is possible to guide the wire drawn from each rotating drum of the winch with the guide roller, and the wire can be guided without interfering with each other. And at the time of winding, a disorder | damage | failure winding can be prevented.

According to a third aspect of the present invention, in the gathering work machine according to the first aspect, the rotating drum (32) provided in the guide roller (38, 42, 59 ) and the winch (30) is located on the front side of the arm (13). Therefore, the rotating drum, the guide roller, and the wire can be arranged without interfering with the arm and the member for driving the arm, and the drawn wire can be prevented from being tangled during the work.

  Next, embodiments of the invention will be described.

  FIG. 1 is a side view showing the overall configuration of a collecting machine according to an embodiment of the present invention, FIG. 2 is a side view of the collecting machine, and FIG. 3 is another embodiment of the collecting machine. FIG. 4 is a partially sectional side view showing the guide roller mounting structure, FIG. 5 is a front view showing the guide roller mounting structure, FIG. 6 is a rear view of the working machine, and FIG. Fig. 8 is a side view showing another embodiment of the working machine, Fig. 8 is a partially enlarged side view of the collecting machine, and Fig. 9 is a front view of the collecting machine.

  As shown in FIGS. 1 and 2, the traveling machine body (this machine) equipped with the gathering work machine 10 is connected to a crawler type traveling device 1 through a swivel bearing 2 having an axial center in the vertical direction. The swivel frame 3 is supported so as to be swivelable. The revolving frame 3 is revolved 360 degrees left and right above the crawler type traveling device 1 by driving a revolving motor provided above the revolving bearing 2. A blade 4 is disposed on one side of the crawler traveling device 1 so as to be vertically rotatable.

  A driving unit including a seat and driving operation means is provided at the center of the turning frame 3, and an engine or the like is provided at the rear. The operating part is covered with a cabin 5 arranged on the revolving frame 3, and the engine is covered with a bonnet 6.

  Further, a collecting work machine 10 is mounted on one side of the traveling machine body, that is, on the front part of the revolving frame 3. The material collecting work machine 10 includes a boom 12, an arm 13, a winch 30, and rotating means thereof, and a boom bracket 11 is supported at the front end portion of the revolving frame 3 so as to be rotatable left and right. The base end portion of the boom 12 is supported so as to be able to turn back and forth. The boom 12 is bent in the middle and is formed in a substantially “<” shape in a side view, and a base end portion of an arm 13 is rotatably supported at a distal end portion of the boom 12. An attachment connecting device 14 is rotatably supported at the tip of the arm 13, and the winch 30 is attached to the attachment connecting device 14 as a collecting work attachment so that it can be easily attached and detached. However, it is also possible to attach directly without providing the attachment connecting device 14. Further, the boom and the arm may be configured integrally, or the winch 30 may be configured to be attached to the distal end of the rotation support arm body in which the extension boom or the extension arm is connected.

  A hydraulic cylinder is disposed in each part of the collecting work machine 10 as an actuator that serves as a means for tilting and turning the boom 12, arm 13, and winch 30. That is, the boom cylinder 16 is interposed between the boom bracket 11 and the boom cylinder bracket 15 provided in the middle of the boom 12, and the boom 12 is rotated by the expansion and contraction operation of the boom cylinder 16. In addition, an arm cylinder 19 is interposed between an arm cylinder bottom bracket 17 provided on the back of the middle part of the boom 12 and an arm upper cylinder bracket 18 provided at the base end of the arm 13, and the arm cylinder 19 is expanded and contracted. The arm 13 is rotated with respect to the boom 12 by the operation.

  Further, an attachment rotating cylinder 20 is provided between the arm upper cylinder bracket 18 and the attachment connecting device 14 via links 21 and 22, and the attachment connecting device 14 is attached to the arm 13 by the expansion and contraction operation of the attachment rotating cylinder 20. It is rotated back and forth. That is, when the attachment connecting device 14 is rotated, the winch 30 is also rotated integrally with the attachment connecting device 14 so that the winch 30 can be grounded in accordance with the inclination of the ground.

  Further, a swing cylinder (not shown) is interposed between the boom bracket 11 and the revolving frame 3, and the boom bracket 11 is rotated left and right with respect to the revolving frame 3 by the expansion and contraction operation of the swing cylinder. In this way, the boom 12 and the arm 13 etc. in the lumber working machine 10 can be rotated forward and backward and left and right.

  The attachment connecting device 14 for enabling the winch 30 as an attachment to be attached to and detached from the distal end portion of the gathering work machine 10 by a simple operation mainly includes a fixed hook 25, a movable hook 26, a release cylinder, and the like. Has been. In the attachment coupling device 14, a movable hook 26 is pivotally supported by the fixed hook 25, a release cylinder is interposed between the fixed hook 25 and the movable hook 26, and the movable hook 26 is expanded and contracted by the release cylinder. Is rotatable with respect to the fixed hook 25.

  Further, engaging portions 25a and 26a are formed at the tips of the fixed hook 25 and the movable hook 26, respectively, and mounting pins 35 and 36 provided on the upper portion of the winch 30 described later are engaged with the engaging portions 25a and 26a. Is possible. The distal end portion of the arm 13 is pivotally supported at the base portion of the fixed hook 25, and the link 21 is pivotally supported by the pivot portion 26b between the movable hook 26 and the fixed hook 25, so that the fixed hook 25 and the movable hook 26 are fixed. The hook 25 and the pivot portion 25b of the arm 13 can be turned around.

  Therefore, when the movable hook 26 is rotated so as to expand with respect to the fixed hook 25 by extension of the release cylinder, the engaging portions 25a and 26a of the fixed hook 25 and the movable hook 26 are respectively connected to the pins 35 and 36 of the winch 30. The winch 30 is fixed to the attachment coupling device 14 and is rotated integrally with the attachment coupling device 14 by the expansion and contraction of the attachment rotation cylinder 20. On the contrary, when the movable hook 26 is rotated so as to be narrower than the fixed hook 25 by reducing the release cylinder, the engaging portions 25a and 26a of the fixed hook 25 and the movable hook 26 and the pins 35 and 36 of the winch 30 are provided. And the winch 30 is removed from the attachment coupling device 14.

  In this way, the winch 30 is detachably attached to the distal end portion of the gathering work machine 10 via the attachment connecting device 14 so as to be rotatable, and can be easily replaced with another attachment. Further, it is not necessary to attach the winch 30 by using a fastener such as a bolt or welding to the revolving frame 3 or the middle part of the work machine 10 for collecting materials, and the operator can sit on the driver's seat and the boom, arm, etc. Since it can be easily attached and detached by rotating, the performance of the working machine is not impaired.

  The winch 30 connected to the attachment connecting device 14 includes a mounting frame 31, a rotating drum 32 around which wires 40 are wound, a driving motor for rotating the rotating drum, and the like. The frame 31 includes a bottom plate 31a and side plates 31b and 31b. The bottom plate 31a is positioned in the left-right horizontal direction as a grounding portion, and is used in a state where the bottom plate 31a is grounded to the ground. On the bottom surface of the bottom plate 31a, a non-slip member 33 constituted by a plurality of protrusions protruding downward with a predetermined interval is provided. However, although the protrusion is configured in a wedge shape with a downward point, it may have a columnar shape, a conical shape, or a polygonal pyramid shape. Moreover, it can also be set as the structure which sticks elastic members, such as rubber | gum, instead of protrusion, and can absorb the unevenness | corrugation of the ground.

  With this configuration, when the winch 30 is grounded, the anti-slip member 33 is bitten into the ground by using the weight of the work tool 10 for collecting the logs, so that the winch 30 can be stably fixed on the ground. ing. In this way, the winch 30 is disposed at a position closest to the ground below the collecting work machine 10 and further disposed at a position away from the center of gravity of the machine. That is, with respect to the pulling force when the winch 30 is activated, the fulcrum of the machine's overturning moment is the grounding part of the winch 30, and the distance between the center of gravity of the machine and the winch 30 is longer than the conventional winch installation position, And a fulcrum position can be made low and it can be set as the structure which cannot fall easily, and can improve safety | security.

  Further, even when working on an inclined place such as a mountainous area, the attachment rotating device 20 is expanded and contracted to appropriately rotate the attachment connecting device 14, so that as shown in FIG. It is possible to place the bottom plate 31a of the winch 30 in parallel to the ground in parallel with the inclination of the ground, by positioning the base plate 31a in the direction substantially perpendicular to the ground or the arm 13 in the substantially vertical direction. Therefore, the ground contact area of the winch 30 is increased, and the winch 30 can be stably supported.

  Side plates 31b and 31b are erected in parallel with each other at right angles from both the left and right sides of the bottom plate 31a, and two-cylinder rotary drums 32 and 32 are provided between the side plates 31b and 31b. The rotary drums 32 and 32 are arranged so that their axial centers are arranged in the left-right direction, parallel in the front-rear direction, and shifted vertically. In this embodiment, they are arranged at the front lower side and the rear upper side. The rotary drums 32 and 32 each have a built-in hydraulic drive motor, and the rotary drum 32 is rotated forward or reverse by driving the drive motor so that the wire 40 can be wound around the rotary drum 32 or the rotary drum. 32 can be fed out. However, the winch 30 may be configured to arrange one or three or more rotating drums.

  Further, pins 35 and 36 are horizontally provided at the upper part between the side plates 31b and 31b, and a reinforcing rod or plate is also provided below the pins 35 and 36. The pins 35 and 36 are arranged above the rotary drum 32 and in parallel with the axis thereof, with one pin 35 serving as the engaging portion 35a of the fixed hook 25 and the other pin 36 serving as the engaging portion 26a of the movable hook 26. Engageable. As described above, the engaging portions 25a and 26a of the fixed hook 25 and the movable hook 26 are engaged with the pins 35 and 36, respectively, and the winch 30 is detachably connected to the attachment connecting device 14.

  A guide roller 38 for guiding the wire 40 drawn from the winch 30 is disposed on the base side of the arm 13. That is, the guide roller bracket 37 is attached to the arm upper cylinder bracket 18 attached to the base end portion of the arm 13, that is, the upper front surface when the arm 13 is positioned in the vertical direction as shown in FIG. Guide rollers 38 and 38 are rotatably supported at the tip of 37. The guide rollers 38 and 38 are disposed on the same side as the rotating drum 32 of the winch 30 with respect to the arm 13, that is, the guide rollers 38 and the rotating drums 32 and 32 are disposed on the front side of the arm 13 in FIG. The axis of the roller 38 and the axis of the rotary drum 32 are arranged in parallel.

  Further, the guide rollers 38 and 38 are disposed on the left and right on the support shaft on the same axis, are rotatably supported, and are disposed within the width of the arm 13. A groove portion is formed in the outer peripheral direction of the guide roller 38 at the left and right centers, and the wire 40 from the rotary drum 32 is guided by the groove portion. The guide rollers 38 and 38 are configured such that one guide roller 38 guides the wire 40 wound around one rotating drum 32 and the other guide roller 38 guides the wire 40 wound around the other rotating drum 32. It is configured. As a result, the ground space for the guide rollers 38 is reduced, so that the guide roller bracket 37 can be simply configured.

  Further, the rotary drums 32 and 32 are also arranged within the width of the arm 13, and the distance between the guide rollers 38 and 38 and the rotary drums 32 and 32 is several tens of times the width of the guide roller 38 and the rotary drum 32. The rotating drums 32 and 32 and the guide rollers 38 and 38 are disposed so as to be long. In other words, the guide rollers 38 and 38 and the rotating drums 32 and 32 are long enough to be approximated to be approximately parallel to the substantially vertical direction when viewed from the front even if the left and right centers of the guide rollers 38 and the left and right centers of the rotating drum 32 are slightly shifted. They are placed apart.

  With such an arrangement, the left and right center of the guide roller 38 and the left and right center of the rotating drum 32 and the wire 40 are positioned in substantially the same plane, and the wire stretched between the guide roller 38 and the rotating drum 32. 40 passes along the longitudinal direction of the arm 13 and, as in the prior art, the guide roller is disposed within the width of the boom or the arm, and the rotating drum is disposed on the side of the boom. It is possible to prevent the winding state of the wire from being disturbed due to an offset load in the direction.

  Therefore, when the wire 40 is unwound from the winch 30, it is pulled out from the rotary drum 32 by a predetermined distance by the drive motor, guided by the guide roller 38, and then pulled out in the direction of the object to be pulled. On the other hand, when being wound around the rotating drum 32, it is guided back by the winch 30 after being guided by the guide roller 38 as described above. At this time, since the left and right guide rollers 38 and 38 rotate independently, they do not interfere even if they rotate in opposite directions. In addition, the winding and drawing wires 40 are not slightly interfered because the left and right positions are slightly shifted. Since the wire 40 passes through the left and right widths of the arm 13 between the guide roller 38 and the rotary drum 32 in the front view, the wire 40 is guided by the guide roller 38 and rotates in an orderly manner without wobbling. Winding around the drum 32 prevents the wire 40 from winding up randomly.

  1, the wire 40 is stretched around a line connecting the rear outer periphery of the guide roller 38 and the front outer periphery of the upper rotary drum 32, that is, a common tangent line between the guide roller 38 and the rotary drum 32. . Thus, the stretched wire 40 is arranged in front of the attachment rotating cylinder 20, the links 21 and 22, the attachment coupling device 14, and the like so that these members and the wire 40 do not interfere with each other. .

  In addition, as shown in FIG. 3, the guide rollers 42 and 42 may be arranged such that the shaft centers thereof are shifted in the front-rear and vertical directions. That is, the guide roller bracket 41 is attached to the arm upper cylinder bracket 18, and support portions 41 a and 41 b of the guide rollers 42 and 42 are formed in a stepped shape on the front upper part of the guide roller bracket 41. That is, in FIG. 3, the guide rollers 42 and 42 are arranged so as to be shifted from each other in the vertical and front and rear directions, and the line connecting the shaft centers of the guide rollers 42 and 42 connects the shaft centers of the rotating drums 32 and 32 of the winch 30. Are arranged so as to be substantially parallel to each other.

  In this way, the wires 40 and 40 drawn from the rotary drums 32 and 32 are respectively guided by the guide rollers 42 and 42 so as to be substantially parallel to each other in the side view and do not interfere with each other. Similarly to the above, 40 is arranged so as not to interfere with the attachment rotating cylinder 20, the links 21 and 22, the attachment connecting device 14, and the like.

  The guide rollers 42 and 42 are arranged such that the left and right centers thereof substantially coincide with the left and right centers of the arm 13. With this configuration, the left and right centers of the guide rollers 42 and 42, the left and right centers of the rotary drums 32 and 32, and the wires 40 and 40 stretched between them are positioned on substantially the same plane. . That is, the wire 40 passes through the center of the arm 13 and is wound or pulled out. Thereby, when winding the wire 40 by the winch 30, it does not shake to the left and right, and irregular winding is prevented.

  Further, as shown in FIGS. 4 and 5, the guide rollers 42 and 42 can be supported by the support portions 41 a and 41 b of the guide roller bracket 41 so as to be rotatable in the left-right direction. That is, to explain one of them, the guide roller 42 is rotatably supported by a support shaft 44 laid horizontally on the bracket 43, and the bracket 43 is formed in a substantially concave shape when viewed from the front, and is formed in a hollow shape from the bottom. 45 is protruded downward and fixed. The rotating shaft 45 is rotatably supported by each support portion 41a via a bearing. In this way, the bracket 43 is rotatable left and right about the rotation shaft 45 in the vertical direction. Since the arm 13 is rotatable, specifically, the guide roller 42 is rotatably supported around a rotation shaft 45 disposed substantially parallel to a common tangent line between the guide roller 42 and the rotary drum 32. . In other words, the extension line of the shaft center of the rotating shaft 45 is disposed so as to substantially coincide with the direction of the groove portion 42 a formed in the outer peripheral direction at the center of the outer peripheral surface of the guide roller 42 in a front view. That is, the tangent line of the groove portion 42 a of the guide roller 42 and the extension line of the axis of the rotation shaft 45 are arranged so as to substantially coincide with each other. The wire 40 is stretched so as to be wound around the rotary drum 32 from the groove 42a of the guide roller 42 through the inside (rotation center) of the rotary shaft 45.

  Thus, even when the wire 40 is pulled out from the guide roller 42 in the left and right direction, the guide roller 42 can be rotated in accordance with the pulling direction of the wire 40, and the wire 40 from the guide roller 42 to the rotating drum 32 of the winch 30. The winding direction is always constant. That is, even when the winding direction of the winch 30 and the pulling direction of the wire 40 outward from the guide roller 42 are different in front view (or plan view), the guide roller 42 is in the pulling direction of the wire 40. The line connecting the groove portion 42a of the guide roller 42 and the rotary drum 32 is rotated substantially around the rotation shaft 45, and the towed object to be pulled by the wire 40 is moved to the main unit side while winding the wire 40 in an orderly manner. It is possible to attract.

  At this time, since the wire 40 passes through the axis of the rotary shaft 45, the guide roller 42 does not get entangled even if it rotates. For example, as shown in FIG. 6, the pulling direction of the wire 40 by rotating only the guide roller 42 even in a place where the work space is narrow with respect to this machine and the collecting work machine 10 cannot be turned left and right. It becomes possible to work by changing.

  Moreover, as shown in FIG. 7, it can also be set as the structure which arrange | positions the guide rollers 52 * 52 on the back side of the boom 12 of the work machine 10 for material collection. That is, the guide roller bracket 51 is attached to the back surface of the central portion in the longitudinal direction of the boom 12 of the collecting machine 10, and the guide rollers 52 and 52 are rotatably supported by the guide roller bracket 51. The guide rollers 52 and 52 are arranged so that the rotation axis is parallel to the axis of the winch 30 and the left and right centers thereof are substantially coincident with the left and right centers of the rotation drum 32 of the winch 30 as described above. In addition, the distance between the guide roller 52 and the rotary drum 32 is set to be sufficiently long (several tens of times) longer than the width of the rotary drum 32 as described above.

  In this embodiment, as shown in FIG. 9, the left and right side plates 31 b are disposed outside the side surface of the arm 13, and the rotary drums 32 and 32 are disposed outside the arm 13. The drive motor is disposed inside the arm 13. Further, the guide rollers 52 and 52 are also arranged so as to protrude to the side of the boom 12 so as to be positioned on the same side as the rotary drums 32 and 32. The guide rollers 52 and 52 and the rotating drums 32 and 32 are arranged so that the left and right centers thereof substantially coincide with each other when viewed from the front. In other words, the left and right centers of the guide rollers 52 and 52, the left and right centers of the rotary drums 32 and 32, and the wire 40 stretched between them are positioned in substantially the same plane.

  In this way, by providing the guide roller 52 on the back side of the boom 12, the object to be pulled by the wire 40 can be drawn to the vicinity of the main unit, that is, below the guide roller 52. At this time, since a predetermined distance is maintained between the rotating drum 32 and the guide roller 52, the wire 40 is wound up around the rotating drum 32 without being irregularly wound. The rotating drum 32 of the winch 30 is positioned on the opposite side to the front and rear. That is, in FIG. 7, when the arm 13 is arranged in the vertical direction, the rotary drums 32 and 32 are attached to the tip of the arm 13 so as to be located behind the lower side of the arm 13.

  Further, a support arm 55 is detachably fixed to the arm upper cylinder bracket 18, and a guide roller 59 is attached to the upper side of the support arm 55 on the same side as the guide roller 52. That is, the base (lower part) of the support arm 55 is attached to the attachment hole 18 a opened in the arm upper cylinder bracket 18 using a fastener 56 such as a bolt.

  The front end of the support arm 55 extends upward on the opposite side of the winch 30, and an annular mounting portion 58 is provided at the front end. A guide roller 59 is attached to the attachment portion 58, and the guide roller 59 is disposed at a position away from the pivotal support portion with respect to the boom 12 at the upper end of the arm 13, that is, above. Specifically, the guide roller 59 is rotatably supported by the bracket 57 by a horizontal axis, and a hook 57a formed on the upper end of the bracket 57 is detachably engaged with the mounting portion 58 to thereby support the support arm 55. Is attached. The hook 57a is configured to be rotatable with respect to the main body of the bracket 57 by an axis in the vertical direction perpendicular to the rotation axis of the guide roller 59.

  In this way, the bracket 57 that supports the guide roller 59 is swingably engaged with the attachment portion 58 and attached to the support arm 55, and the guide roller 59 can be rotated left and right above the arm 13 to winch. After the wire 40 fed out from the rotary drum 32 of 30 is guided by the guide rollers 52 and 52 on the rear surface of the boom 12, it is further guided by the guide roller 59 provided at the tip of the support arm 55 and pulled out in the direction of the towed object. It is configured to be.

  Accordingly, when the object to be pulled is pulled by the wire 40, the height of the wire 40A using the support arm 55 is higher than the height of the wire 40B when the guide roller 59 is not used, as shown in FIG. Can be maintained and the wire can be pulled from a high position. Therefore, the to-be-towed object can be pulled up while being pulled, and the catch between the to-be-to-be-triggered object and the surrounding objects is reduced. As a result, it becomes easy for the to-be-towed object to be drawn toward the main unit. Further, the support arm 55 is small and has a weight that can be detached and attached by one worker, and is configured so as not to interfere with other work.

The side view which showed the whole structure of the working machine for material collection which concerns on one Example of this invention. The side view of the work machine for material collection. The side view which shows another Example of the working machine for material gathering. The partial cross section side view which shows the attachment structure of a guide roller. The front view which shows the attachment structure of a guide roller. The rear view of a working machine. The side view which shows another Example of the working machine for material gathering. The partially expanded side view of the working machine for lumber gathering. The front view of the work machine for material gathering.

10 Working Machine for Gathering 12 Boom 13 Arm 30 Winch 40 Wire 32 Rotating Drum 42 Guide Roller

Claims (3)

A base end portion of a boom (12) is supported by a front end portion of a turning frame (3) provided so as to be turnable with respect to the traveling machine body via a boom bracket (11) so as to be able to turn back and forth. ) Is supported at the distal end of the arm (13) so as to be pivotable, and the attachment coupling device (14) is supported at the distal end of the arm (13) so as to be pivotable forward and backward. 14) In the work machine for collecting materials in which the winch (30) is detachably attached as the attachment for collecting work, the winch (30) is a rotating drum around which the mounting frame (31) and the wire (40) are wound. (32) and a drive motor for rotating the rotary drum (32), and the arm (13) is used with the bottom plate (31a) of the frame (31) grounded to the ground as a grounding portion. Of the The other end of the over arm (12) side, by the winch (30) feeding or rollable and the wire guide rollers for guiding the (40) (38, 42, 59) provided to be, in the winch (30) A working machine for collecting materials, characterized in that the left and right center of the rotary drum (32) and the left and right center of the guide roller (38, 42, 59 ) are arranged on substantially the same plane. The work machine for collecting materials according to claim 1, wherein the winch (30) includes a plurality of rotating drums (32), the same number of guide rollers ( 42 ) as the rotating drums (32), and each guide roller ( 42 ). A work machine for collecting lumber, which is characterized by being shifted up and down and up and down. The work machine for collecting materials according to claim 1, characterized in that the guide roller (38, 42, 59 ) and the rotating drum (32) provided in the winch (30) are arranged on the front side of the arm (13). A work machine for collecting materials.

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