JPH0245104Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cableway device that is suspended in the air and that suspends and moves a self-propelled carrier device, and is particularly designed to prevent the carrier device from falling when the cableway is cut.

For example, in order to transport and collect wood cut from a mountain to a predetermined location, a cableway is strung up in the air, and a driving device is mounted on the tower, and the driving force is used to rotate an endless drum. The constructed carrier device is suspended on the above-mentioned cableway and wound around the endless drum of the cableway so that it can be pulled up and propelled by the rotation of the drum, and the wood is suspended from this carrier device and carried in the air to a predetermined location. A transportation method is used.

However, in the conventional cableway device for suspending this type of self-propelled carrier device, the cableway supports the weight of the carrier device and the load of the transported object (wood etc.), and the cableway is wound around an endless drum and driven by pulling. Since the cableway is used for multiple purposes, it is easily damaged due to repeated bending force applied by winding it around the endless drum, and if this damage becomes severe and it is cut, there is a risk that the carrier device will immediately fall to the ground and be damaged. .

In view of the above, the present invention provides a cableway device that prevents a carrier device suspended therefrom from falling even if the cableway is cut.

That is, in order to achieve the above object, the cableway device of the present invention is equipped with a pulley on the front pillar on which the cableway is stretched, and the cableway is turned back at this pulley, and one side of the cableway is connected to the endless drum of the carrier device once or multiple times. It is wound around, and one end is fixed to the base pole side, and the other end is fixed to the base pole side through multiple guide sheaves provided at the top of the carrier device, and stretched in two strips between the front pole and the base pole. By fixing a locking block near the pulley on the winding side of the endless drum of this cableway, when the winding side of the endless drum of the cableway is cut, the locking block will lock to the pulley on the leading pillar. The side of the cableway that passes through the guide sheave is held stretched between the front pillar and the base pillar to prevent the carrier device from falling.

An embodiment of the present invention will be described below with reference to the drawings.

First, an example of a self-propelled carrier device to which the present invention is applied will be explained with reference to FIG.

This self-propelled carrier device 1 is roughly divided into a power unit part 2, an endless winch part 3, a lifting winch part 4 as a lifting device, and a beam part 5. Each part can be separated from the other, and the endless winch part 3, Lifting winch part 4
and the boom section 5 are integrally connected, and the power unit section 2 is swingably attached to the beam section 5.

To explain each part in detail, firstly, the power unit part 2 has a so-called engine 6, such as a diesel engine or a gasoline engine, with respect to the support frame 2a.
A drive device 9 equipped with a hydraulic pump 7 and a hydraulic oil tank 8 is attached, the engine 6 and the hydraulic pump 7 are connected via a centrifugal coupling 10, and a hydraulic pipe 11 is connected to the hydraulic pump 7.
Further, a hydraulic pipe 11' is connected to the hydraulic oil tank 8 via an oil filter 12.

Next, in the endless winch section 3, a traveling hydraulic motor 13 is installed on a support frame 3a, and an endless drum 14 is rotatably attached to the hydraulic motor 1.
It is rotated via a chain 15 that is suspended between 3 and 3. Further, the support frame 3a has a hydraulic switching valve device 16.
and a receiver 17 are attached, and hydraulic pipes 18, 18' are connected between the switching valve device 16 and the hydraulic motor 13, and this switching valve device 16 is connected to the receiver 1.
The switching operation is performed by a signal obtained from 7.
Incidentally, reference numerals 19 and 19' designate a pair of hydraulic pipes through which the switching valve device 16 is connected to the drive device 9 side of the power unit section 2.

Next, in the lifting winch section 4, a support frame 4a is separably connected to the support frame 3a of the endless winch section 3, a lifting hydraulic motor 20 is installed on the support frame 4a, and a lifting drum 21 is rotatably attached. It is rotated via a chain 22 that is connected to a hydraulic motor 20. Further, the hydraulic motor 20 is connected to the above-mentioned hydraulic switching valve device 16, flexible hydraulic hoses 23, 23', and rotary joints 24, 24'. Further, a guide sheave 25 through which a lifting wire W wound around the lifting drum 20 is led out and guided downward, and a pair of guide rollers 26, 26' are pivotally attached to the support frame 4a.

Next, looking at the beam section 5, it consists of a arm 27 of approximately the same length as the support frame 2a of the power unit section 2, and this arm 27 is detachably attached to the support frame 3a of the endless winch section 3 at its base. A support member 28 that swingably supports one side of the support frame 2a of the power unit section 2 is attached to the tip end thereof. The other side of the support frame 2a of the power unit section 2 is swingably attached to the endless winch section 3 by a support member 28'.

In addition, hydraulic piping 11, 11' of the drive device 9 of the power unit section 2 and hydraulic piping 19, 1 led out from the hydraulic switching valve device 16 of the endless winch section 3.
9' is a pair of flexible hydraulic hoses 29,2
9' and are connected via rotary joints 30, 30' and 31, 31' provided at both ends, respectively.

The upper part of the self-propelled carrier device 1 configured as described above, that is, the support frame 3a of the endless winch section 3
Guide sheaves 32 and 32' are pivotally attached to the upper part and the tip of the arm 27 of the beam section 5, and the support frame 3
Brackets 33 and 3 are placed on the upper surfaces of a and arm 27.
3' are erected, and guide sheaves 34 and 34' are rotatably attached to their tips, respectively.

Next, an example of the cableway device of the present invention for suspending and moving the self-propelled carrier device 1 constructed as described above will be explained with reference to FIGS. 2 to 4.

Reference numerals 41 and 42 denote a front pillar and a base pillar that are erected at the tip and base ends of the moving location of the carrier device 1, and a cableway, that is, a wire 43 is stretched between them. That is, the front pillar 41
One pulley 44 is attached to the base column 42 at a required height, and the guide sheaves 32 and 34, 32' and 34' of the carrier device 1 are installed at a required distance above and below at a required height of the base column 42. 2 at intervals approximately equal to the interval of
Attach pulleys 45 and 45'.

Then, the wire 43 is wound around the pulley 44 of the front pillar 41 and turned back, and one side 43a of the wire 43 is wound around the endless drum 14 of the carrier device 1 once or multiple times, and the guide sheaves 32 and 3
2', and the end side is attached to the base pillar 42.
It is tied and fixed to a first anchor 46 buried near the base pillar 42 via a pulley 45' on the lower side. In this state, the other side 43b of the wire 43 is passed under the guide sheaves 34 and 34' attached to the carrier device 1 via the brackets 33 and 33', and this end side is passed through the pulley 45 on the upper side of the base column 42. By pulling this through the wire 43, the entire wire 43 is stretched in a tensioned state between the front pillar 41 and the base pillar 42, and in this state, the end portion is It is tied and fixed to the anchor 46' of No. 2.

In this way, the carrier device 1 is suspended on a cableway or wire 43 stretched between the front pillar 41 and the base pillar 42. Then, on one side 43a of the wire 43, that is, on the side where the carrier device 1 is wound around the endless drum 14, a locking block 47 is located near the pulley 44 attached to the front post 41 and is fastened and fixed.

This locking block 47 is connected to the receiving ring 44 of the pulley 44.
The width is wider than the distance between the two side plates 44b and 44c that sandwich the block a, and the two block halves 47a,
47b, and these two block halves are connected with bolts 48, 48' and nuts 49, with the wire 43 in between.
49' to secure it to the wire 43. A buffer body 50 such as a coil spring is arranged on the end surface of the locking block 47 on the pulley 44 side.
Note that this buffer 50 is not necessarily required.

Furthermore, retaining ropes 51 and 51' are strung between anchors 52 and 52' on the front pillar 41 and the base pillar 42 to prevent them from falling down. Incidentally, standing trees may be used as the front pillar 41 and the base pillar 42.

The operation of transporting an object, such as wood T, by suspending the above-mentioned carrier device 1 using the cableway device configured as described above will be explained.

First, to move the carrier device 1, the engine 6 of the drive device 9 of the power unit section 2 is driven by remote wireless control to operate the hydraulic pump 7, and hydraulic pressure is supplied from the hydraulic oil tank 8 to the hydraulic pipe 11 and the flexible hydraulic hose. 29 and the hydraulic piping 19 to the hydraulic switching valve device 16. The switching valve device 16 operates on the endless winch section 3 side in response to a movement signal, and the hydraulic pressure is sent to the traveling hydraulic motor 13 through the hydraulic piping 18, and the hydraulic motor 13 is driven.
This drive causes the endless drum 14 to rotate via the chain 15.

This rotation of the endless drum 14 causes the wire 43 wound around the endless drum 14 to pass along one side 43a, so that the carrier device 1 is moved around the wire 43.
The guide sheave 34 is rolled onto the other side 43b of the
and 34' in a suspended state.

Note that the hydraulic pressure that drives the hydraulic motor 13 is supplied to the pipe 1.
8', switching valve device 16, piping 19', hydraulic hose 2
It returns to the hydraulic oil tank 8 through 9' and piping 11'. In this case, depending on the rotational direction of the hydraulic motor 13, the directions in which the hydraulic pressure is sent and returned through the pipes 18 and 18' differ.

In this way, the carrier device 1 has the front pillar 41 and the main pillar 4
At the location where the wood T is lifted, the carrier device 1 is stopped and the hydraulic pressure from the drive device 9 of the power unit section 2 is switched to the switching valve device 16.
By the operation of the lifting winch section 4 side, the hydraulic motor 20 for lifting is fed through the hydraulic hose 23, and is driven to move the lifting drum 21 to the chain 22.
After rotating the lifting wire W through the
By switching the switching valve device 16 to 0, the hydraulic motor 19 is fed from the opposite direction, that is, from the hydraulic hose 23' side.
By rotating the lifting drum 21 in the opposite direction, the lifting drum 21 is rotated in the direction in which the wire W is wound up, thereby lifting the wood. In this state, the carrier device 1 is moved to the wood collection site and the wood is suspended.

In the above operation, the carrier device 1 uses one side 43a of the wire 43 of the cableway device for movement,
Further, the other side 43b is used for suspension support, but since the one side 43a is wound around the endless drum 14, repeated bending force is applied thereto, making it susceptible to damage and breakage during long-term use.

However, even if one side 43a of this wire 43 is cut, the locking block 47 fixed to this one side 43a will prevent the both side plates 44b, 4 of the pulley 44 on the front post 41 side from being cut.
4c and is locked, the other side 43b of the wire 43 remains in the air between the front post 41 and the base post 42, and the carrier device 1 is locked against the brackets 33 and 3.
It is maintained in a suspended state via guide sheaves 34 and 34' attached to 3', and is prevented from falling.

At this time, if the locking block 47 is made of an elastic material, or if a buffer body 50 is placed on the end surface of the locking block 47 on the pulley 44 side, the locking block 47 can be attached to the pulley 44 when the wire is cut. 4
The other side 43 of the wire 43 by abutting 4
The impact when locking b is alleviated, and the impact on the carrier device 1 can be reduced.

As described above, according to the cableway device of the present invention, even if the cableway on the side where the self-propelled carrier device is suspended and is wound around the endless drum and used for movement is severed, the carrier device remains in the air on the other side of the cableway. Since the cableway is suspended from the side and prevented from falling, there is no risk of damage or harm to surrounding workers, allowing for safe work. Since the tension is maintained in the same state, the side of the carrier device wound around the endless drum and the side on which the carrier device is suspended are always maintained at the same tension, allowing smooth movement of the carrier device and improving work efficiency. ,
Moreover, it has the advantage of being simple in structure and easy to install at a desired location.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing an example of a self-propelled carrier device applied to the device of the present invention, FIG. 2 is a schematic perspective view of an installed state showing an example of the cableway device according to the present invention,
FIG. 3 is an enlarged side view of the main part of the same, and FIG. 4 is a bottom view of the same. In the figure, 1 is a self-propelled carrier device, 14 is an endless drum, 21 is a lifting drum, 33 and 33' are brackets, 34 and 34' are guide sheaves, 41 is a front pillar, 42 is a main pillar, and 43 is a cableway. wire, 4
3a is one side of the wire, 43b is the other side of the wire, 44 is a pulley, 47 is a locking block, and W is a lifting wire.

Claims (1)

[Scope of utility model registration request] In a cableway device in which a self-propelled carrier device is suspended, which is self-propelled by pulling a cableway with an endless drum rotated by a drive device mounted on the tower, a pulley is provided on the front pillar on which the cableway is stretched, and the pulley Turn the cableway back at the end, wrap one end of the cableway around the endless drum once or multiple times, fix one end to the base pole, and pass the other end through a plurality of guide sheaves provided at the top of the carrier device to the base pole. A locking block is fixed to the side and stretched in two strips between the front pillar and the base pillar, and a locking block is fixed to the endless drum winding side of the cableway, located near the pulley. cableway equipment.