JP2020125166A - Rope unwinding device and rope winding method of working machine winch drum - Google Patents

Abstract

To prevent a rope winding device from skidding during work without a large weight in the rope unwinding device unwinding the rope to the work machine winch drum while applying tension to the rope.SOLUTION: A rope unwinding device 1 comprises a pedestal 1S, a spool drum 20, a brake drum 40, and a restraining part 50. A main winding rope 19 unwound from the spool drum 20 is wound up by a main winding winch 18 of a crane 100 with tension applied by the brake drum 40. The restraining part 50 is fixed to the pedestal 1S, and can be constrained by the crane 100 so that the own weight of the crane 100 prevents the pedestal 1S from skidding on the ground by the winding force of the main winding winch 18.SELECTED DRAWING: Figure 3

Description

The present invention relates to a rope unwinding device for unwinding a rope to wind a rope around a winch of a working machine and a method of winding up a winch drum of a working machine.

BACKGROUND ART Conventionally, as a working machine, a crane including a lower traveling body, an upper swing body, a boom, and a winch is known. The boom is attached to the front part of the upper swing body so as to be capable of undulating. The winch winds and unwinds the rope hanging from the tip of the boom, so that the suspended load connected to the rope is lifted. At the stage of assembling a crane, a work of winding a rope around such a winch is performed in advance.

Patent Documents 1 to 4 disclose a rope feeding device that sequentially feeds a rope wound on a predetermined temporary winding drum toward a winch while applying a predetermined tension to the rope. The rope feeding device includes a support portion that rotatably supports the temporary winding drum, and a brake drum that is interposed between the temporary winding drum and a winch of a crane and that applies tension to the rope that is fed from the temporary winding drum. With. As the brake drum rolls out the rope, the winch drum of the winch is rotated, and the rope is wound around the outer peripheral surface of the winch drum.

JP, 2008-52629, A JP-A-2-48394 Utility model registration No. 3203908 JP, 9-216791, A

In the techniques described in Patent Documents 1 to 4, the rope feeding device is installed on the ground, and a large tension is applied to the rope between the brake drum and the winch drum of the crane. Therefore, in order to prevent the rope payout device from sliding sideways to the crane side due to the winding force of the winch drum, the rope payout device needs to include a weight. Generally, in order to stably wind the rope around the winch drum, a weight of about 5 to 10 tons is required for the rope feeding device. Therefore, there is a problem that the weight causes an increase in transportation cost, transportation time, and installation time at the work site of the rope payout device.

The present invention has been made in view of the above problems, and in a rope paying-out device that pays out the rope to a winch drum of a working machine while applying tension to the rope, a rope paying-out device in operation without a large weight is provided. The purpose is to prevent skidding.

A rope payout device according to an embodiment of the present invention applies tension to the winch drum of a working machine having a machine body, an undulating member supported to be capable of undulating the machine body, and a winch drum capable of winding a rope. A rope unwinding device that unwinds the rope while applying it, and has a support base installed on the ground and a cylindrical first outer peripheral surface rotatably supported by the support base, on the first outer peripheral surface. A spool drum that has a first barrel portion around which the rope is wound, and has a cylindrical second outer peripheral surface that is rotatably supported by the support base and that has a cylindrical second outer peripheral surface. A second body portion that comes into contact with the rope at a specific contact position on the second outer peripheral surface, and a tension is applied to the rope while feeding the rope to the winch drum while applying a tension to the rope by the contact with the rope at the contact position. A drum is fixed to the support base and can be connected to the work machine so as to prevent the support base from skidding on the ground by the winding force of the winch drum due to the weight of the work machine. And a restraint portion.

According to this configuration, the tension applying drum applies tension to the rope unwound from the spool drum of the rope unwinding device, so that the rope can be stably wound around the winch drum of the working machine. Further, since the restraint portion of the rope feeding device is restrained by the work machine, it is possible to prevent the support base from skidding on the ground due to the winding force of the winch drum by its own weight.

In the above configuration, it is preferable that the restraint portion has a pressed surface that is restrained by the undulating member by being pressed from above by the undulating member that is laid down with respect to the machine body of the working machine.

According to this configuration, the undulating member of the work machine is laid down with respect to the machine body, and the undulating member presses the pressed surface of the restraint portion from above, so that the undulating member and the ground raise and lower the restraint portion of the rope feeding device. It can be sandwiched between. As a result, it is possible to prevent the supporting base from sliding sideways on the ground by the winding force of the winch drum by the weight of the undulating member. Further, it is possible to easily realize the work of pressing the restraint portion of the rope payout device from above by utilizing the falling motion of the undulating member capable of undulating.

In the above configuration, the restraint portion includes a pair of wall portions fixed to the support so as to sandwich the tension applying drum from both sides in a horizontal direction, and the pair of wall portions above the tension applying drum. A connecting portion that connects to each other in a horizontal direction, the pressed surface is disposed on an upper surface portion of the connecting portion, and the tension applying drum is configured such that the tension applying drum rotates with the rotation of the second barrel portion. Is preferably configured to be extended upward from the second outer peripheral surface.

According to this configuration, the undulating member is arranged above the tension applying drum even when a force such that the rope unwinding device floats up due to the winding force of the winch drum is applied to the peripheral portion of the tensioning drum of the support base. Since the pressed surface is pressed downward, it is possible to suppress the lifting of the rope paying-out device through the restraint portion.

In the above configuration, the restraint section may include a machine body coupling section that is coupled to the machine body of the work machine and is restrained by the machine body.

According to this configuration, the restraint is restrained by the fuselage by connecting the fuselage of the work machine and the fuselage joint of the rope feeding device, and the work of sliding the support base on the ground by the winding force of the winch drum is performed. It can be stopped by the weight of the machine. In particular, it is possible to surely suppress the skid of the feeding device by using a machine body that requires stability and has a large self-weight among working machines.

In the above structure, it is preferable that the machine body connecting portion is connectable to a weight mounting portion for mounting a weight, which holds the balance of the working machine, of the machine body to the machine body.

According to this configuration, the rope feeding device can be connected to the machine body by using the weight mounting portion for mounting the weight on the machine body.

In the above configuration, the machine body connecting part is a connection for connecting the weight and the machine body by being inserted into a hole part opened in the weight and a hole part opened in the weight mounting part. A connecting hole portion through which a pin can be inserted is opened, and the connecting pin is inserted into the hole portion and the connecting hole portion opened in the weight mounting portion, so that the machine body connecting portion is the body body. It is desirable to be connectable to the weight mounting part.

According to this configuration, it is possible to connect the rope payout device to the machine body by using the connection pin for mounting the weight on the weight mounting portion of the machine body.

Further, a rope winding method for a winch drum of a working machine according to another aspect of the present invention is a working machine having a machine body, an undulating member supported so as to be capable of undulating on the machine body, and a winch drum capable of winding the rope. A rope winding method for a winch drum of a working machine for winding a rope around the winch drum, which comprises preparing the rope payout device described above, and the restraint portion of the rope payout device by the work machine. Constraining the rope, further unwinding the rope from the spool drum of the rope unwinding device, further unrolling the rope from the tension applying drum while applying tension to the rope by the tension applying drum, and the winch drum. The rope unwound from the tension imparting drum while preventing the skid of the support base of the rope unwinding device from sliding sideways on the ground by the take-up force of the working machine in the restraint section by the winch. Winding on a drum.

According to this method, the tension imparting drum applies tension to the rope unwound from the spool drum of the rope unwinding device, so that the rope can be stably wound around the winch drum of the working machine. Further, by restraining the restraint part of the rope feeding device by the work machine, it is possible to prevent the support platform from skidding on the ground due to the winding force of the winch drum by its own weight.

In the above method, the undulating member is laid down with respect to the machine body, and the urging member constrains the restraint portion of the rope feeding device by pressing a pressed surface arranged in the restraint portion from above. It is desirable to further include

According to this method, the undulating member of the working machine is laid down with respect to the machine body, and the undulating member presses the pressed surface of the restraint portion from above, whereby the undulating member and the ground raise and lower the restraint portion of the rope feeding device. It can be sandwiched between. As a result, it is possible to prevent the supporting base from sliding sideways on the ground by the winding force of the winch drum by the weight of the undulating member. Further, it is possible to easily realize the work of pressing the restraint portion of the feeding device from above by utilizing the falling motion of the undulating member capable of undulating.

In the above method, as the undulation member, using a member having a supporting member that is arranged at the tip of the undulation member and can support the undulation member by contacting the ground, and the undulation member with respect to the machine body. It is preferable that the restraint portion of the rope feeding device is restrained by pushing down the pushed surface from above by the supporting member of the undulating member.

According to this method, the restraint portion can be restrained by pressing the restraint portion of the feeding device from above using the support member that supports the undulating member on the ground.

In the above method, as the undulating member, a member in which a plurality of members are detachably connected to each other along the longitudinal direction of the undulating member is used, and a part of the plurality of members is the machine body. The rope is extended so that the rope is fed out by tilting the mounted part of the member with respect to the machine body and pressing the pressed surface of the restraint part from above by the part of the member. Constraining the restraint of the device.

According to this method, a part of the undulating member is laid down with respect to the machine body, and the constrained part is constrained by pressing the pressed surface of the constrained part from above by the part of the member to wind the winch drum. It is possible to prevent the support base from skidding on the ground by the pulling force by the weight of a part of the undulating member. For this reason, it is possible to carry out the work of winding the rope around the winch drum simply by mounting a part of the undulating member on the machine body without mounting the entire undulating member on the machine body.

In the above method, as the undulating member, one having a column member that constitutes a part of the undulating member and extends in the horizontal direction is used, and as the rope payout device, the column member is a concave shape that can be fitted from above. The inner peripheral surface of which is formed in the restraint portion as the pressed surface, and the undulating member is laid down with respect to the machine body, the pillar member of the undulating member to the concave inner peripheral surface. It is desirable to further include restraining the restraint portion of the rope feeding device by fitting the restraint portion.

According to this method, it is possible to restrain the restraint portion by pressing the restraint portion of the rope feeding device from above by using the pillar member that constitutes a part of the undulating member.

In the above method, as the rope feeding device, one in which the pressed surface of the restraint portion is arranged above the tension applying drum is used, and the tension applying drum moves the rope to the second trunk portion. Arranging the rope payout path between the tension applying drum and the winch drum so as to pay out upward from the second outer peripheral surface, and the rope payout device by the winding force of the winch drum. It is desirable to further wind up the rope wound up from the tension imparting drum around the winch drum while further preventing the upward movement of the rope by the weight of the undulating member in the restraining portion.

According to this method, the undulating member is arranged above the tension applying drum even when a force such that the rope unwinding device is lifted by the winding force of the winch drum is applied to the peripheral portion of the tensioning drum of the support base. Since the pressed surface is pressed downward, it is possible to suppress the lifting of the rope paying-out device through the restraint portion.

The above method may further comprise restraining the restraint portion by connecting the restraint portion to the machine body of the work machine.

According to this method, the restraint portion is restrained by connecting the machine body of the work machine and the machine body connection portion of the rope feeding device, and it is possible to prevent the support platform from skidding on the ground due to the winding force of the winch drum. It can be stopped by its own weight. In particular, it is possible to surely suppress the skid of the feeding device by using a machine body that requires stability and has a large self-weight among working machines.

In the above method, the work machine further comprises a weight for maintaining a balance of the work machine, and a machine having a weight mounting portion for allowing the weight to be mounted on the machine body; Preferably, the restraint portion of the device is connected to the weight mounting portion.

According to this method, it is possible to connect the rope feeding device to the machine body and to restrain the restraint portion by using the weight mounting portion for mounting the weight to the machine body.

In the above method, as the working machine, the weight and the machine body are connected by inserting a predetermined connecting pin into the hole opened in the weight and the hole opened in the weight mounting portion. The work machine by using a thing, and by inserting a connecting pin into the hole opened in the restraint part of the rope feeding device and the hole opened in the weight mounting part of the machine body. And connecting the restraint portion of the rope payout device.

According to this method, the rope feeding device can be connected to the machine body and the restraining part can be restrained by using the pin for mounting the weight on the weight mounting portion of the machine body.

ADVANTAGE OF THE INVENTION According to this invention, in the rope paying-out apparatus which pays out the said rope to the winch drum of a working machine, applying a tension|tensile force to a rope, it is possible to prevent side slippage of the rope paying-out apparatus during work, without providing a big weight.

It is a side view of a work machine to which a rope feeding device concerning a 1st embodiment of the present invention is applied. It is a side view which shows a mode that a rope is paid out to the winch drum of a working machine from the rope paying-out apparatus which concerns on 1st Embodiment of this invention. It is the expansion side view which expanded a part of FIG. It is a plane sectional view of the rope paying-out device concerning a 1st embodiment of the present invention. FIG. 3 is a front sectional view of the rope paying-out device according to the first embodiment of the present invention. It is a side view which shows a mode that a rope is paid out to the winch drum of a working machine from the rope paying-out apparatus which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the connection location of the rope feeding device and the up-and-down member of a working machine which concern on 2nd Embodiment of this invention. It is a side view which shows a mode that a rope is paid out to the winch drum of a working machine from the rope paying-out device which concerns on 3rd Embodiment of this invention. It is a top view showing signs that the rope paying-out device concerning a 3rd embodiment of the present invention was attached to the machine body of a working machine. It is an expanded side view which shows a mode that the rope feeding device which concerns on 3rd Embodiment of this invention was mounted in the machine main body of a working machine. It is a side view which shows a mode that a rope is paid out to the winch drum of a working machine from the conventional rope paying-out apparatus.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a crane 100 (work machine) to which a rope feeding device 1 according to a first embodiment of the present invention is applied. In addition, hereinafter, in each drawing, the directions of “up”, “down”, “left”, “right”, “front” and “rear” are shown as necessary, but the directions are The rope feeding device 1 and the crane 100 according to the embodiment are illustrated for convenience, and do not limit the moving direction of the work machine or the usage mode of the rope feeding device and the work machine according to the present invention.

<About working machines>
The crane 100 includes an upper revolving structure 10 (machine) corresponding to a crane body, a lower traveling structure 11 (machine) that supports the upper revolving structure 10 so as to be rotatable and can travel on the ground, and a boom as an undulating member. 13 and. A cab 12 is provided at the front end of the upper swing body 10. The cab 12 corresponds to the driver's seat of the crane 100. In the vicinity of the cab 12, a shaft support portion (not shown) that supports the boom 13 is provided.

The boom 13 shown in FIG. 1 is a so-called lattice type, and is composed of a lower boom 13A, one or more (one in the illustrated example) intermediate boom 13B, and an upper boom 13C. Specifically, the lower boom 13A has a boom foot 13S, and the boom foot 13S is connected (supported) to a shaft supporting portion provided at the front portion of the upper swing body 10 so as to be rotatable in the up-and-down direction. To be done. The intermediate boom 13B is detachably attached to the tip end side of the lower boom 13A. The upper boom 13C is removably attached to the tip side of the intermediate boom 13B. That is, the boom 13 is configured by detachably connecting a plurality of members to each other along the longitudinal direction of the boom 13.

A first sheave 131, a second sheave 132, and a third sheave 133 (Fig. 2) are provided on the tip side of the upper boom 13C. The boom hoisting rope 17 or the main winding rope 19 is hung on the first sheave 131, the second sheave 132, and the third sheave 133, as described later.

In the present invention, the concrete structure of the boom is not limited to the above. For example, the number of intermediate booms 13B of the boom may be different from the above. Further, the intermediate boom 13B may not be provided, and the upper boom 13C may be directly connected to the lower boom 13A. Further, the boom 13 may be made of a single member. Further, the first sheave 131 may not be attached to the upper boom 13C, and may be attached to the intermediate boom 13B and the lower boom 13A. Further, the present invention is not limited to the above-described aspect regarding the ups and downs of the boom. For example, after passing through the gantry sheave 141, the upper spreader is connected to the tip of the upper boom by a guy line or guy link via the lower spreader and the upper spreader, and the boom is undulated by expanding and contracting between the lower spreader and the upper spreader. It may be configured to be.

Further, the crane 100 includes a gantry including the compression member 14 and the tension member 15, a boom hoisting winch 16, and a boom hoisting rope 17.

The gantry is a column that is erected on the rear side portion of the upper swing body 10. A gantry sheave 141 is provided at the tip of the gantry.

The boom hoisting rope 17 is pulled out from the boom hoisting winch 16, and is hung around the gantry sheave 141 of the gantry and the first sheave 131 arranged on the tip side of the upper boom 13C a plurality of times. The tip of the boom hoisting rope 17 after being wound around the gantry sheave 141 and the first sheave 131 is fixed to the tip of the gantry.

The boom hoisting winch 16 is arranged near the base end of the gantry of the upper swing body 10. The boom hoisting winch 16 winds and unwinds the boom hoisting rope 17, thereby hoisting the boom 13 while rotating the boom 13 relative to the gantry. In particular, the boom hoisting winch 16 winds up the boom hoisting rope 17 to stand up the boom 13 around the shaft supporting portion of the upper swing body 10, and unwinds the boom hoisting rope 17 to move the boom 13 around the shaft supporting portion. To lie down.

The crane 100 further includes a main hoisting winch 18 (winch drum) for hoisting and lowering a hoisting load (object to be hoisted), and a main hoisting rope 19 (rope). In the crane 100 according to the present embodiment, the main winding winch 18 is provided on the rear side of the cab 12 of the upper swing body 10. In another embodiment, the main winding winch 18 may be attached to the lower boom 13</b>A of the boom 13.

The main winding winch 18 winds and lowers a suspended load by the main winding rope 19. A main hook (not shown) for suspending a load is provided at a tip portion (rope tip portion 19A) of the main winding rope 19 pulled out from the main winding winch 18. Then, the main rope 19 is hung between the second sheave 132 at the tip of the boom 13 and the sheave of a sheave block (not shown) provided on the main hook via the third sheave 133 (FIG. 2). Passed. Therefore, when the main winding winch 18 winds or unwinds the main winding rope 19, the distance between the second sheave 132 and the sheave of the main hook changes, and the rope tip suspended from the tip of the boom 13 is changed. The main hook connected to the portion 19A is wound up and down. In the same manner, the crane 100 may be provided with a winch for auxiliary winding (not shown), and the hanging load may be hoisted and hoisted by the auxiliary hoisting rope.

<Regarding the method of winding the rope of the winch drum of the conventional work machine>
In the assembling work of the crane 100, a work of winding a rope around a winch drum represented by a main winch 18 occurs. Further, when the rope of the main winding winch 18 is damaged, it is necessary to pull out the rope from the main winding winch 18 and wind a new rope. In such work, in order to prevent irregular winding of the rope wound on the main winding winch 18, the rope is attached to the rotating main winding winch 18 while applying a predetermined tension to the rope. You need to get out. FIG. 11 is a side view showing a state in which the main hoisting rope 19 is unwound from the conventional rope unwinding device 1Z to the main hoisting winch 18 of the crane 100. The rope feeding device 1Z includes a spool drum portion 2, an idler sheave portion 3, and a brake drum portion 4.

As shown in FIG. 11, the rope unwinding device 1Z is installed on the ground, and the brake drum section 4 applies a load to the main winding rope 19 to apply a large tension of about 5 to 8 tons to the main winding rope 19, for example. In this state, the main winding winch 18 winds up the main winding rope 19. At this time, in order to prevent the rope payout device 1Z from sliding sideways to the crane 100 side (arrow DS direction) with the winding operation of the main winch 18, the rope payout device 1Z is provided with a weight 1W (weight, anchor). ) Must be provided. Generally, in order to stably wind the main winding rope 19 around the main winding winch 18, a weight 1 W of approximately 5 to 10 tons is required. Therefore, there is a problem that the transport cost, transport time, and installation time of the rope payout device 1Z are increased by the weight 1W. Further, as shown in FIG. 11, when the rope paying-out device 1Z is arranged at a position far from the crane 100, the main winding rope 19 easily hangs down on the ground as indicated by a broken line, and in this case, a lubricant such as grease was applied. Sand and dust on the ground adhere to the main winding rope 19, and the main winding rope 19 is easily damaged during winding.

<About the rope feeding device>
FIG. 2 is a side view showing how the main winding rope 19 (rope) is reeled out from the rope unwinding device 1 according to the present embodiment to the main winch 18 (winch drum) of the crane 100. FIG. 3 is an enlarged side view in which a part of FIG. 2 is enlarged. FIG. 4 is a plan sectional view of the rope feeding device 1. FIG. 5 is a front sectional view of the rope feeding device 1.

The rope feeding device 1 has a function of feeding a rope to a working machine such as the crane 100 while applying a predetermined tension. As shown in FIG. 2, the rope feeding device 1 is arranged on the ground G so as to face the crane 100.

The rope feeding device 1 includes a spool drum portion 2, an idler sheave portion 3, a brake drum portion 4, a base 1S (support base), and a restraining portion 50. The pedestal 1S is installed on the ground and is made of a plate material that supports the spool drum portion 2, the idler sheave portion 3, and the brake drum portion 4.

As shown in FIG. 2, the arrow DK direction from the rope feeding device 1 toward the main winding winch 18 is defined as the feeding direction of the main winding rope 19 (rope). When the main winding winch 18 is rotated and the main winding rope 19 is wound into the main winding winch 18, the angle of the main winding rope 19 is adjusted by the third sheave 133 of the upper boom 13C as shown in FIG. To be done.

The spool drum portion 2 is arranged at the front end portion of the pedestal 1S. The spool drum portion 2 includes a spool drum 20, a pair of spool drum support portions 2S, and a spool drum rotating machine 2M (FIG. 4).

The spool drum 20 is rotatably supported on the base 1S. The spool drum 20 has a cylindrical outer peripheral surface (first outer peripheral surface) and has a drum body portion 21 (first body portion) on which the main winding rope 19 is wound, and both ends of the drum body portion 21. And a pair of flanges 22 arranged in the section. The spool drum 20 is arranged such that the axis of the cylindrical outer peripheral surface of the drum body 21 extends along the horizontal direction, and the main winding rope 19 is paid out in accordance with the rotation of the drum body 21 around the axis. The spool drum 20 is attachable to and detachable from the spool drum supporting portion 2S of the rope feeding device 1. The main winding rope 19 wound around the drum body portion 21 of the spool drum 20 is wound in order along the axial direction (left and right direction in FIG. 4). Therefore, when the main winding rope 19 is fed while the spool drum 20 is rotated, the feeding position of the main winding rope 19 on the spool drum 20 reciprocates along the axial direction.

The pair of spool drum support portions 2S rotatably support the spool drum 20. The spool drum rotating machine 2M is an electric motor including a spool drum rotating shaft 2T. The spool drum rotating machine 2M drives the spool drum 20 to rotate when the main winding rope 19 is wound around the spool drum 20.

The idler sheave portion 3 is arranged between the spool drum 20 and the brake drum 40 in the front-rear direction. The idler sheave portion 3 has a function of guiding the main winding rope 19 fed from the spool drum 20.

The idler sheave portion 3 includes a first shaft 31T, a second shaft 32T, a first idler sheave 31, a second idler sheave 32, and a frame 3S.

The first idler sheave 31 includes a first peripheral surface 31H on which the main winding rope 19 unwound from the spool drum 20 is hung, and is rotatably supported by the first shaft 31T. Further, the second idler sheave 32 is arranged at a position displaced from the first idler sheave 31 in the vertical direction. The second idler sheave 32 includes a second peripheral surface 32H on which the main winding rope 19 that has passed through the first peripheral surface 31H of the first idler sheave 31 is hung, and is rotatably supported by the second shaft 32T. Further, in the present embodiment, from the state shown in FIG. 2, the first idler sheave 31 and the second idler sheave 32 are slidably movable on the first shaft 31T and the second shaft 32T, respectively, in the axial direction (left-right direction). Has been done.

The brake drum portion 4 is rotatably supported at the rear end portion of the base 1S. The brake drum portion 4 includes a brake drum 40 (tension imparting drum), a pair of brake drum support portions 40S, and a brake drum rotating machine 41.

The brake drum 40 is arranged between the spool drum 20 and the main winding winch 18. In other words, the brake drum 40 is arranged on the downstream side of the spool drum 20 in the feeding direction (arrow DK in FIGS. 1 and 2) of the main winding rope 19 from the rope feeding device 1 to the main winding winch 18. .. The brake drum 40 extends between the peripheral surface 40H and the main winding winch 18, and a cylindrical peripheral surface 40H (second outer peripheral surface) that supports a part of the main winding rope 19 that is paid out from the spool drum 20. And a tension applying mechanism for applying a tension to the main winding rope 19 to be hung.

The brake drum 40 comes into contact with the main winding rope 19 fed from the spool drum 20 via the idler sheave portion 3 at a specific position on the peripheral surface 40H, and while the tension is applied to the main winding rope 19 by the contact, the brake drum 40 is rotated. The main winding rope 19 is paid out toward the main winding winch 18 in accordance with the rotation of the surface 40H. In the present embodiment, the tension applying mechanism includes a known disc brake arranged in the brake drum rotating machine 41. That is, by applying a predetermined braking force to the brake drum 40 against the winding force of the main winding winch 18, tension is applied to the main winding rope 19 stretched between the two. The brake drum 40 is rotated about an axis extending in the horizontal direction in parallel with the axis of the spool drum 20, and feeds the main winding rope 19 to the main winding winch 18. Note that, as shown in FIG. 2, the outer diameter of the peripheral surface 40H of the brake drum 40 continuously increases from the central portion in the axial direction toward both outer sides. As the brake drum 40 rotates, the main winding rope 19 moves to the central portion of the circumferential surface 40H in the axial direction and is then pulled out from the brake drum 40.

The restraint portion 50 is fixed to the base 1S. In the present embodiment, the restraint portion 50 has a gate pillar shape. The restraint part 50 has a pair of left and right side walls 51 (wall parts) and a top wall 52 (connecting wall) that connects upper end parts of the pair of side walls 51 to each other along the left-right direction. The pair of left and right side walls 51 are fixed to the base 1S so as to sandwich the brake drum 40 from both sides in the horizontal direction (horizontal direction). The top wall 52 connects the pair of side walls 51 to each other in the left-right direction above the brake drum 40.

The restraint part 50 can be restrained by the crane 100 so as to prevent the pedestal 1S from sliding sideways on the ground by the winding force of the main winding winch 18 by its own weight. In the present embodiment, the restraint portion 50 has a pair of left and right pressed portions 50S (pressed surfaces). The pressed portion 50S is arranged on the upper surface of the top wall 52. The pair of left and right pressed parts 50S can be constrained by the boom 13 by being pressed from above by the boom 13 of the crane 100 which is laid down with respect to the upper swing body 10.

With reference to FIGS. 3 and 5, in the present embodiment, the crane 100 further includes a pair of left and right boom support portions 135 (support members). The pair of left and right boom support portions 135 is arranged at the tip of the upper boom 13C of the boom 13. More specifically, the pair of left and right boom support portions 135 are arranged so as to extend downward from both side surfaces of the left and right main frames forming the upper boom 13C when the boom 13 is in the lying posture (FIGS. 2 and 3). There is. As shown in FIG. 3, when viewed in the left-right direction (direction parallel to the rotation axis of the boom 13 ), the pair of left and right boom support portions 135 are arranged so as to extend downward from the rotation axis of the second sheave 132. There is. When the boom 13 is placed on the ground, the pair of left and right boom supporting portions 135 can support the boom 13 by coming into contact with the ground before the main frame.

Then, in the present embodiment, as shown in FIG. 3, the pair of left and right boom support portions 135 of the boom 13 presses the pair of left and right pressed portions 50S of the restraining portion 50 from above to below. As a result, the weight of the boom 13 of the crane 100 is applied to the rope payout device 1 via the restraint part 50, and the rope payout device 1 (the restraint part 50) is restrained.

Referring to FIG. 3, the tip end of the main winding rope 19 is paid out from the spool drum 20, and the first idler sheave 31, the second idler sheave 32 of the idler sheave portion 3, the brake drum 40 of the brake drum portion 4, and the boom 13 are provided. It is fixed to the main winding winch 18 (FIG. 1) via the second sheave 132 and the third sheave 133. Then, when the winding of the main winding rope 19 by the main winding winch 18 is started, the spool drum 20, the first idler sheave 31, the second idler sheave 32, and the brake drum 40 move in the direction shown by the arrow in FIG. Rotate.

With reference to FIG. 4, in the present embodiment, the first idler sheave 31 and the second idler sheave 32 are slidable along the axial direction. Therefore, the positions of the first idler sheave 31 and the second idler sheave 32 in the axial direction change according to the change in the payout position P (FIG. 4) of the main winding rope 19 in the axial direction accompanying the rotation of the spool drum 20. .. Specifically, the balance between the tension of the main winding rope 19 between the spool drum 20 and the first idler sheave 31 and the tension of the main winding rope 19 between the first idler sheave 31 and the second idler sheave 32 causes The position of the 1 idler sheave 31 in the axial direction is determined. Similarly, by the balance between the tension of the main winding rope 19 between the first idler sheave 31 and the second idler sheave 32 and the tension of the main winding rope 19 between the second idler sheave 32 and the brake drum 40, The axial position of the second idler sheave 32 is determined.

At this time, the brake drum portion 4 of the rope feeding device 1 applies tension (braking force) to the main winding rope 19, so that the main winding rope 19 is strongly pulled between the main winding winch 18 and the brake drum 40. .. Therefore, when the main winding rope 19 is wound around the main winding winch 18, irregular winding of the main winding rope 19 is suppressed. On the other hand, since the winding force of the main winding winch 18 is applied to the rope payout device 1 via the main wind rope 19, a large pulling force is applied to the rope payout device 1.

Even in such a case, in the present embodiment, the weight of the boom 13 is applied to the pressed portion 50S of the restraint portion 50 of the rope payout device 1 from the pair of left and right boom support portions 135. Therefore, the restraint portion 50 of the rope feeding device 1 can be sandwiched between the boom 13 and the ground from above and below. As a result, the weight of the boom 13 prevents the pedestal 1S of the rope payout device 1 from skidding on the ground due to the frictional force between the pedestal 1S and the ground and the frictional force between the boom support portion 135 and the restraining portion 50.

Further, in the present embodiment, as shown in FIGS. 3 and 5, the pair of left and right pressed portions 50S of the restraint portion 50 is more specifically an area above (immediately above) the brake drum 40 of the brake drum portion 4, more specifically. Are arranged so as to be included in a region where the brake drum 40 is projected upward in the side view of FIG. Further, the brake drum 40 is arranged so as to feed the main winding rope 19 upward from the peripheral surface 40H (FIG. 3). Therefore, when the main winding winch 18 winds up the main winding rope 19, a force is applied to the brake drum 40 via the third sheave 133 and the second sheave 132 so as to pull the rope feeding device 1 upward. It However, as described above, the own weight of the boom 13 is applied downward to the pair of left and right pressed portions 50S of the restraint portion 50 via the pair of left and right boom support portions 135. Therefore, the sideslip of the rope payout device 1 is suppressed, and the lift of the brake drum 40 side (the restraint portion 50) of the rope payout device 1 is suppressed. In this manner, the weight of the crane 100 is applied to the restraining portion 50 of the rope unwinding device 1 in the direction opposite to the direction in which the main hoisting rope 19 is unwound from the rope unwinding device 1, whereby the main winch 18 The position of the rope unwinding device 1 is stably held during the winding operation of the main hoisting rope 19 by the above (the unwinding work of the main winding rope 19 by the rope unwinding device 1). In addition, the said structure and effect can be applied also to other embodiment mentioned later.

Further, in the present embodiment, as shown in FIG. 5, in a direction (horizontal direction) orthogonal to the direction in which the main winding rope 19 is paid out from the brake drum 40 (vertical direction), the brake drum 40 is provided on both left and right sides in a pair. The pressing portion 50S is arranged on the restraint portion 50. Therefore, even if the position where the main winding rope 19 is fed from the brake drum 40 changes in the left-right direction, the own weight of the boom 13 is stably applied to the restraining portion 50, and the positional deviation of the rope feeding device 1 is prevented. ..

In the present embodiment, the pair of left and right boom support portions 135 also have a function of contacting the restraining portion 50 of the boom 13. Therefore, as compared with the case where the main frame of the boom 13 contacts the restraining portion 50, partial damage of the boom 13 is suppressed.

In addition, in the present embodiment, as shown in FIG. 2, the main winding rope 19 is fed upward from the brake drum portion 4 of the rope feeding device 1 and passes through the second sheave 132 and the third sheave 133 of the crane 100. Then, it passes through the upper portion of the collapsed boom 13 and is wound into the main winding winch 18. At this time, immediately below the tip of the boom 13, the tip side portion of the rope feeding device 1 in the feeding direction is arranged. Therefore, as shown by the broken line in FIG. 11, there is no possibility that a part of the main winding rope 19 will come into contact with the ground, and sand and dust are prevented from being caught in the main winding rope 19.

Next, a second embodiment of the present invention will be described. FIG. 6 is a side view showing how the main hoisting rope 19 is unwound from the rope unwinding device 1 according to the present embodiment to the main hoisting winch 18 of the crane 100. FIG. 7 is a perspective view showing a connecting portion between the rope feeding device 1 according to the present embodiment and the third sheave 133 of the crane 100. In addition, in the present embodiment, as compared with the first embodiment described above, there is a difference in the connection structure between the boom 13 of the crane 100 and the restraint portion 50 of the rope unwinding device 1, and therefore the description will be centered on the difference, Description of common points is omitted.

As shown in FIG. 6, in the present embodiment, when the main winding rope 19 is wound around the main winding winch 18, the lower boom 13A forming a part of the boom 13 is attached to the upper swing body 10 so as to be capable of undulating. Thus, the upper revolving superstructure 10 is made to lie down. One end of a boom hoisting rope 17 is temporarily connected to the tip of the lower boom 13A. With reference to FIG. 7, the lower boom 13A includes a boom tip pipe 13A1 (column member) arranged at its tip. The boom tip pipe 13A1 is arranged at the tip of the lower boom 13A and on the lower surface of the lower boom 13A when the lower boom 13A is in the lying position, and is in the left-right direction (direction parallel to the rotation axis of the lower boom 13A, horizontal direction). Is a pipe member that extends to. The boom tip pipe 13A1 constitutes a part of the lower boom 13A.

On the other hand, the restraint portion 50 of the rope feeding device 1 has a pressed portion 50S formed on the upper surface of the ceiling wall 52. The pressed portion 50S has an inner peripheral surface that is concave upward so that the boom tip pipe 13A1 can be fitted from above, and is arranged so as to extend in the left-right direction on the ceiling wall 52. In this embodiment, the length of the boom tip pipe 13A1 in the left-right direction is set to be larger than the length of the pressed portion 50S in the left-right direction.

With such a configuration, as shown in FIG. 6, when the boom hoisting winch 16 tilts the lower boom 13A while unrolling the boom hoisting rope 17, the boom tip pipe 13A1 eventually causes the boom tip pipe 13A1 to be pressed against the pressed portion of the restraining portion 50. Fit 50S from above. As a result, the weight of the lower boom 13A is applied to the pressed portion 50S, the rope unwinding device 1 is restrained via the connecting portion 50, and the rope unwinding operation is performed during the operation of winding the main winding rope 19 into the main winding winch 18. The pedestal 1S of the device 1 is prevented from skidding on the ground. At this time, when the boom tip pipe 13A1 is fitted into the pressed portion 50S, the outer peripheral surface of the boom tip pipe 13A1 restrains the inner peripheral surface of the pressed portion 50S in the front-rear direction, so that the skid of the rope feeding device 1 is further suppressed. To be done. In the present embodiment, unlike the first embodiment, the second sheave 132 and the third sheave 133 are not attached to the lower boom 13A, so the auxiliary crane 150 lifts the sheave 151 and the rope feeding device 1 It is desirable to interpose between the brake drum 40 and the main winding winch 18. Also in this case, the tension of the main winding rope 19 is applied upward from the sheave 151 to the brake drum 40 of the rope feeding device 1. However, since the boom tip pipe 13A1 of the lower boom 13A presses the pressed portion 50S of the restraint portion 50 downward, the restraint portion 50 side of the rope feeding device 1 is prevented from rising. Further, as shown by the broken line in FIG. 11, there is no possibility that a part of the main winding rope 19 will come into contact with the ground, and sand and dust are prevented from being caught in the main winding rope 19.

Next, a third embodiment of the present invention will be described. FIG. 8 is a side view showing how the main hoisting rope 19 is unwound from the rope unwinding device 1 according to the present embodiment to the main hoisting winch 18 of the crane 100. FIG. 9 is a plan view showing a state in which the rope feeding device 1 according to the present embodiment is mounted on the lower traveling body 11 of the crane 100. FIG. 10 is an enlarged side view showing a state in which the rope feeding device 1 according to the present embodiment is mounted on the lower traveling body 11 of the crane 100. Note that, in the present embodiment, as compared with the first embodiment described above, the connection structure between the crane 100 and the restraint portion 50 of the rope unwinding device 1 is different, so the description will be centered on the differences, and the common points. Will be omitted.

In the present embodiment, the restraint portion 50 of the rope feeding device 1 is connected to the lower traveling body 11 of the crane 100. At this time, in the present embodiment, as shown in FIG. 8 and FIG. 9, the arrangement of the spool drum portion 2, the idler sheave portion 3 and the brake drum portion 4 of the rope feeding device 1 with respect to the crane 100 is the same as in the first embodiment. It is the opposite compared to. That is, the spool drum portion 2 is arranged at the position closest to the crane 100, and the brake drum portion 4 is arranged at the position farthest from the crane 100. Further, the restraint portion 50 is arranged at the end of the pedestal 1S that is closest to the crane 100 (the side closer to the crane 100 than the spool drum portion 2). The restraint portion 50 is composed of a wall portion that is erected upward from the base 1S. The restraint portion 50 has a pair of left and right feeding device coupling portions 50T (FIGS. 9 and 10) (airframe coupling portions) projecting rearward toward the lower traveling body 11 of the crane 100. In the feeding device connecting portion 50T, a hole portion through which the connecting pin P1 can be inserted is opened so as to extend in the left-right direction.

On the other hand, referring to FIG. 9, the lower traveling body 11 includes a car body 110, a pair of left and right crawler bodies 111, and a pair of front and rear car body weights 115. Note that, in FIG. 9, only the rear car body weight 115 of the pair of front and rear car body weights 115 is shown.

The car body 110 is a main body of the lower traveling body 11, and supports the upper revolving body 10 (FIG. 8) at the center of the main body so as to be capable of revolving. The car body 110 has a pair of left and right car body connecting portions 110S (weight mounting portions) arranged on the front and rear side surfaces thereof. The pair of left and right crawler bodies 111 are connected to the left and right side surfaces of the car body 110, and respectively support the crawlers 112 so as to be able to orbit.

The car body weight 115 is attached to the pair of left and right car body connecting portions 110S of the car body 110. The car body weight 115 has a pair of left and right weight connecting portions 115S. The pair of left and right car bodies 110 of the car body 110 and the pair of left and right weight connecting portions 115S of the car body weight 115 are each provided with a hole through which the connecting pin P1 can be inserted so as to extend in the left-right direction. .. As shown in FIG. 9, the car body weight 115 is connected to the pair of left and right car body connecting portions 110S of the car body 110 by a pair of left and right connecting pins P1. The car body weight 115 can be similarly attached to the pair of left and right car body connecting portions 110S on the front side of the car body 110.

In the present embodiment, as shown in FIG. 9, the pair of left and right car body connecting portions 110S can be used to connect the rope payout device 1 to the car body 110. That is, the connecting pin P1 is inserted into each of the connecting hole portion opened in the pair of left and right feeding device connecting portions 50T of the restraint portion 50 and the hole portion opened in the pair of left and right car body connecting portions 110S. Then, the feeding device connecting portion 50T is connected to the car body connecting portion 110S of the car body 110.

As shown in FIG. 8, also in this embodiment, it is desirable that the sheave 151 lifted by the auxiliary crane 150 be interposed between the rope payout device 1 and the main winding winch 18. In the rope feeding device 1, the main winding rope 19 fed from the spool drum portion 2 is supplied to the front brake drum portion 4 via the idler sheave portion 3. Then, while the tension is applied to the main winding rope 19 in the brake drum portion 4, the main winding rope 19 is wound around the main winding winch 18 via the sheave 151.

Even in such a configuration, since the restraint portion 50 of the rope payout device 1 is connected to the car body 110 of the crane 100, the restraint portion 50 is restrained, and the winding force of the main winch 18 causes the rope payout device 1 to move. The pedestal 1S is prevented from skidding on the ground. Further, as shown by the broken line in FIG. 11, there is no possibility that a part of the main winding rope 19 will come into contact with the ground, and sand and dust are prevented from being caught in the main winding rope 19. Further, as shown in FIG. 8, the rope payout device 1 is connected to the lower traveling body 11 in a state in which the swing angle of the upper rotating body 10 is set to the initial angle so that the cab 12 faces the front of the lower traveling body 11. To be done. As a result, the cab 12 and the rope feeding device 1 are arranged at positions close to each other. For this reason, the operator who winds up the main winch 18 in the cab 12 and the operator who operates the rope unwinding device 1 and unwinds the main hoisting rope 19 are located close to each other. Therefore, both workers can easily communicate with each other, and it becomes possible to efficiently perform the work while grasping the working state of each other.

The rope winding method of the main winding winch 18 of the rope unwinding device 1 according to each of the embodiments of the present invention described above is a winch capable of winding the machine body, the undulating member supported by the machine body so as to be capable of undulating, and the rope. A rope winding method for a winch drum of a working machine, for winding a rope around the winch drum of a working machine having a drum, comprising:
Preparing the rope feeding device described in each of the above embodiments,
Restraining the restraint portion of the rope feeding device by the working machine,
Unwinding the rope from the spool drum of the rope unwinding device, and further unwinding the rope from the tension applying drum while applying tension to the rope by the tension applying drum,
While preventing the support base of the rope feeding device from sliding sideways on the ground due to the winding force of the winch drum, the rope fed from the tension applying drum is blocked by the restraining portion due to the weight of the working machine. Winding on the winch drum,
Equipped with.

In the above method, the undulating member is laid down with respect to the machine body, and the undulating member presses a pressed surface arranged in the restraining portion from above, thereby restraining the working machine and the rope unwinding device. It may be desirable to further comprise restraining the part.

Further, in the above method, as the undulating member, one having a support member that is arranged at the tip of the undulating member and can support the undulating member by contacting the ground,
Constraining the restraint portion of the rope feeding device by tilting the undulating member with respect to the machine body, and pressing the pressed surface from above by the supporting member of the undulating member,
It is desirable to further include

Further, in the above method, as the undulating member, a member in which a plurality of members are detachably connected to each other along the longitudinal direction of the undulating member is used,
Attaching a part of the plurality of members to the machine body so that the machine body can be undulated, and causing the mounted some members to fall down with respect to the machine body,
Constraining the constraining portion of the rope feeding device by pressing the pressed surface of the constraining portion from above by the part of the member,
It is desirable to further include

In the above method, as the undulating member, one having a column member that constitutes a part of the undulating member and extends in the horizontal direction is used,
As the rope paying-out device, the one in which the pillar-shaped concave inner peripheral surface that can be fitted from above is formed in the restraint portion as the pressed surface,
Bending the undulating member with respect to the machine body, and binding the column member of the undulating member to the concave inner peripheral surface to bind the binding portion of the rope feeding device,
It is desirable to further include

Further, in the above method, as the rope feeding device, the one in which the pressed surface of the restraint portion is arranged above the tension applying drum,
Arranging the rope feeding path between the tension applying drum and the winch drum so that the tension applying drum moves the rope upward from the second outer peripheral surface of the second barrel portion. When,
While further preventing the rope payout device from being lifted upward by the winding force of the winch drum by the weight of the undulating member at the restraining portion, the rope paid out from the tension imparting drum is transferred to the winch drum. Winding up,
It is desirable to further include

Further, in the above method, it is preferable that the method further comprises restraining the restraint portion by connecting the restraint portion to the machine body of the work machine.

Further, in the above method, as the working machine, further comprising a weight for holding the balance of the working machine, and having a weight mounting part that allows the weight to be mounted on the machine body,
Connecting the restraint portion of the rope payout device to the weight mounting portion;
It is desirable to further include

Further, in the above method, as the working machine, by inserting a predetermined connecting pin into a hole portion opened in the weight and a hole portion opened in the weight mounting portion, the weight and the machine body are Using what is connected,
By inserting a connecting pin into the hole opened in the restraint portion of the rope feeding device and the hole opened in the weight mounting portion of the machine body, the work machine and the rope feeding device Connecting with the restraint,
It is desirable to further include

The rope winding device 1 according to each embodiment of the present invention and the rope winding method for the winch drum of the working machine have been described above. The present invention is not limited to these forms. The present invention can take the following modified embodiments, for example.

(1) In the above embodiment, the pair of left and right boom support parts 135 arranged at the tip of the boom 13 presses the pair of left and right pressed parts 50S of the restraint part 50 downward, but It is also possible to adopt a mode in which another member of the tip portion of the boom 13 presses the restraint portion 50 downward. Alternatively, a part of the boom 13 and the restraint portion 50 may be connected to each other by a fastening member such as a bolt. Further, the connecting portion between the boom 13 and the restraint portion 50 is not limited to the pair of left and right portions, and may be connected to each other at one place or at three or more places.

(2) In the above-described second embodiment, the description has been given of the mode in which the tip portion of the lower boom 13A presses the restraint portion 50 downward, but the upper boom is swung while the lower boom 13A and the intermediate boom 13B are connected to each other. A mode may be adopted in which the intermediate boom 13B is mounted on the body 10 so as to be capable of undulating and the tip portion of the intermediate boom 13B presses the restraint portion 50 downward.

(3) In the third embodiment described above, the feeding device restraining portion 50T of the rope feeding device 1 is used as the car body 110 by utilizing the pair of left and right car body connecting portions 110S in which the car body weight 115 is attached to the car body 110. However, the feeding device restraining portion 50T may be connected to the car body 110 via another portion.

(4) In the above embodiment, as shown in FIG. 1, the boom 13 is raised and lowered by the gantry (14, 15), but the present invention is not limited to this. In a large crane in which the boom 13 is undulated by a mast, the mast may be undulated by the boom erection winch 16, and the boom connected to the mast by a guy line or guy link may be undulated in association with the mast undulation. .. In this case, the tip of the boom is not provided with the first sheave 131 as shown in FIG. 1, but the guy line or guy link is directly connected to the tip of the boom. Further, in this case, as shown in FIG. 11, the boom hoisting winch 16 may be attached to the lower boom 13A. In the case of the mast type, a hydraulic cylinder is provided at the tip of the mast, and the lower boom can be lifted by the hydraulic cylinder at the time of disassembling and assembling by tilting the mast forward of the crane. Therefore, by utilizing this function, the lower boom may be hoisted by the hydraulic cylinder.

100 cranes (work machines)
1 Rope feeding device 10 Upper revolving structure 11 Lower traveling structure 110 Car body 110S Car body connecting part (weight mounting part)
115 Car Body Weight 115S Weight Connecting Part 12 Cab 13 Boom 131 First Sheave 132 Second Sheave 133 Third Sheave 135 Boom Support (Supporting Member)
13A Lower boom 13A1 Boom end pipe 150 Auxiliary crane 151 Sheave 18 Main winding winch 19 Main winding rope 1S Pedestal (support base)
2 spool drum part 20 spool drum 3 idler sheave part 31 first idler sheave 32 second idler sheave 4 brake drum part 40 brake drum 50 restraining part 50S pressed part (pressed surface)
50T feeding device connection part (airframe connection part)
51 Side wall (wall part)
52 Top wall (connection part)
P1 connecting pin

Claims (15)

A rope unwinding device that unwinds the rope while applying tension to the winch drum of a working machine having a machine body, an undulating member supported undulatingly on the machine body, and a winch drum capable of winding the rope. ,
A support stand installed on the ground,
A spool drum that is rotatably supported by the support base, has a cylindrical first outer peripheral surface, and has a first barrel portion on which the rope is wound, and a spool drum that pays out the rope;
A second barrel portion that is rotatably supported by the support base and that has a cylindrical second outer peripheral surface and that contacts the rope unwound from the spool drum at a specific contact position on the second outer peripheral surface; A tensioning drum that feeds the rope to the winch drum while applying tension to the rope by contact with the rope at the contact position,
A restraint portion fixed to the support base and capable of being restrained by the working machine so as to prevent the support base from skidding on the ground by the winding force of the winch drum due to its own weight. ,
A rope feeding device. 2. The rope payout according to claim 1, wherein the restraint portion has a pressed surface that is restrained by the undulating member by being pressed from above by the undulating member that is laid down with respect to the machine body of the work machine. apparatus. The restraint portion includes a pair of wall portions fixed to the support so as to sandwich the tension imparting drum from both sides in the horizontal direction, and the pair of wall portions above the tension imparting drum in the horizontal direction. And a connecting portion to be connected, the pressed surface is disposed on the upper surface of the connecting portion,
The rope feeding device according to claim 2, wherein the tension applying drum is configured to feed the rope upward from the second outer peripheral surface as the second barrel portion rotates. The rope unwinding device according to claim 1, wherein the restraint portion has a machine body coupling portion that is coupled to the machine body of the work machine and is restrained by the machine body. The rope feeding device according to claim 4, wherein the machine body connecting portion is connectable to a weight mounting portion for mounting a weight of the machine body that maintains a balance of the working machine to the machine body. A connecting pin for connecting the weight and the machine body can be inserted into the machine body connecting portion by being inserted into a hole portion opened to the weight and a hole portion opened to the weight mounting portion. A connecting hole is opened, and a connecting pin is inserted into the hole opening in the weight mounting portion and the connecting hole so that the body connecting portion is the weight mounting portion of the body. The rope feeding device according to claim 5, which is connectable to the rope. A rope winding method for a winch drum of a work machine, for winding a rope around the winch drum of a work machine, comprising: a machine body, an undulating member supported by the machine body and a winch drum capable of winding the rope. There
Preparing the rope unwinding device according to claim 1;
Restraining the restraint portion of the rope feeding device by the working machine,
Unwinding the rope from the spool drum of the rope unwinding device, and further unwinding the rope from the tension applying drum while applying tension to the rope by the tension applying drum,
While preventing the support base of the rope feeding device from sliding sideways on the ground by the winding force of the winch drum, the rope fed from the tension applying drum is blocked by the restraining portion by the weight of the working machine. Winding on the winch drum,
A method of winding a rope on a winch drum of a working machine, comprising: Further comprising restraining the restraint portion of the rope feeding device by tilting the undulating member with respect to the machine body, and pressing the pressed surface arranged in the restraint portion from above by the undulating member. Item 8. A method of winding a rope of a winch drum of a working machine according to Item 7. As the undulating member, one having a supporting member that is arranged at the tip of the undulating member and is capable of supporting the undulating member by contacting the ground,
Constraining the restraint portion of the rope feeding device by tilting the undulating member with respect to the machine body, and pressing the pressed surface from above by the supporting member of the undulating member,
The method for winding a rope of a winch drum of a working machine according to claim 8, further comprising: As the undulating member, a member in which a plurality of members are detachably connected to each other along the longitudinal direction of the undulating member is used,
Attaching a part of the plurality of members to the machine body so that the machine body can be undulated, and causing the mounted some members to fall down with respect to the machine body,
Constraining the constraining portion of the rope feeding device by pressing the pressed surface of the constraining portion from above by the part of the member,
The method for winding a rope of a winch drum of a working machine according to claim 8, further comprising: As the undulating member, using one having a column member that constitutes a part of the undulating member and extends in the horizontal direction,
As the rope paying-out device, the one in which the pillar-shaped concave inner peripheral surface that can be fitted from above is formed in the restraint portion as the pressed surface,
Bending the undulating member with respect to the machine body, and binding the column member of the undulating member to the concave inner peripheral surface to bind the binding portion of the rope feeding device,
The method for winding a rope of a winch drum of a working machine according to claim 8, further comprising: As the rope feeding device, the one in which the pressed surface of the restraint portion is arranged above the tension applying drum,
Arranging the rope feeding path between the tension applying drum and the winch drum so that the tension applying drum moves the rope upward from the second outer peripheral surface of the second barrel portion. When,
While further preventing the rope unwinding device from being lifted up by the winding force of the winch drum by the weight of the undulating member in the restraint portion, the rope unwound from the tension imparting drum is transferred to the winch drum. Winding up,
The method of winding a rope of a winch drum of a working machine according to claim 8, further comprising: The rope winding method for a winch drum of a work machine according to claim 7, further comprising: restraining the restraint portion by connecting the restraint portion to the machine body of the work machine. As the working machine, further comprising a weight for maintaining the balance of the working machine, and using a machine having a weight mounting portion that allows the weight to be mounted on the machine body,
Connecting the restraint portion of the rope payout device to the weight mounting portion;
The rope winding method for a winch drum of a work machine according to claim 13, further comprising: As the working machine, use one in which the weight and the machine body are connected by inserting a predetermined connecting pin into the hole opening in the weight and the hole opening in the weight mounting portion. When,
By inserting a connecting pin into the hole opened in the restraint portion of the rope feeding device and the hole opened in the weight mounting portion of the machine body, the work machine and the rope feeding device Connecting with the restraint,
The rope winding method for a winch drum of a working machine according to claim 14, further comprising:

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