JP2002308578A - Electric wire lift device of vehicle for high lift work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric wire lift device restraining narrowing of an effective work area of a floor surface 8 of a platform 7 as much as possible by solving a problem, for a conventional electric wire lift device of a vehicle for high lift works, that there may be a limit when an operator moves on the surface 8 or loads or handles materials since the electric wire lift device 26 is mounted on a proper place 8a on one end side in longitudinal direction on the surface 8 and a winch device 21 is mounted on a proper place 8b on the other end side in longitudinal direction. SOLUTION: A base end part of a winch support 57 equipped with the winch device 56 is fixed on the platform 7, an electric wire lifting tool 66 is fixed on the vicinity of an upper end part of the support 57, and an electric wire guide part 31 provided to the tool 66 and supporting the electric wire is provided above the device 56.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winch support mounted on a platform mounted on an upper end of a lifting means of an aerial work vehicle, and an electric wire lifting device.

[0002]

2. Description of the Related Art A conventional winch support and an electric wire lifting device will be described with reference to FIG. Here, the vehicle and the lifting / lowering means are respectively a track-and-rail vehicle and a boom, and the platform is described as being mounted on the upper end of the boom.

An aerial work vehicle A is turned on an aerial work device B mounted on a vehicle 1 which can travel freely, that is, a base frame 2, an iron wheel 3 mounted on the base frame 2 and capable of contacting with a rail, and a base frame 2. A swivel 4 that is freely mounted, a boom 5 whose base end is rotatably mounted on the upper end of the swivel 4, and a boom 5 that is mounted on the distal end of the boom 5 so as to maintain a horizontal position regardless of the up and down driving of the boom 5 Posture maintaining member 6, posture maintaining member 6
, A device composed of a platform 7 which is mounted to be able to swing horizontally.

[0004] The iron wheel 3 can be freely tracked by a swing actuator 11 (not shown).
12 (not shown), the boom 5 can be moved up and down by an up / down actuator 13
14 (not shown), the posture maintaining member 6 is swingable by a posture maintaining actuator 15, and the platform 7 is driven by a oscillating actuator 16 (not shown) so as to be able to swing.

[0005] An electric wire push-up member 26 is attached to an appropriate position 8a on one end in the longitudinal direction on the floor 8 of the platform 7. The wire lifting device 26 has a base 27 a fixed on the floor 8 of the platform 7, a wire lifting support 27 erected, and a wire lifting guide 27 attached to the upper end 27 b of the wire lifting support 27. It consists of 28. The wire push-up guide 28 further includes legs 29, 29 attached to and fixed to the upper end 27 b, a shaft 30 fixed to a bridge 29 c between the upper ends 29 b, 29 b of the legs 29, and around the shaft 30. And a guide roller 31 which is rotatably mounted on the guide roller 31.

A winch device 21 is mounted on the floor 8 of the platform 7 and at the other end 8b in the longitudinal direction. The winch device 21 includes a winch support 22 having a base end 22a fixed on the floor 8 of the platform 7 and standing upright, and a winch 23 mounted near the upper end 22b of the winch support 22.

When the aerial work vehicle A constructed as described above performs an aerial work, the vehicle 1 is first run on a road,
Go to a railroad crossing near the work site. Therefore, the iron wheel 3 is brought into contact with the track so that the track can run. Next, it travels on the track to the work site, and when it arrives, starts working at heights.

In the work at high places, the boom 5 is appropriately raised and extended, and the platform 7 is appropriately swung to perform the work at high positions.
At this time, the winch device 21 is used to load and unload materials on the platform 7 and supply and hold the materials to the work object.

In addition, work at heights is often performed under overhead lines or communication lines. When these electric wires are close to the floor surface 8 of the platform 7 or handrails, not only work is difficult, but also an operator or Material could come into contact with overhead or communication lines. Therefore, wire pusher 26
The guide roller 31 is provided for depositing overhead wires or communication wires and keeping these wires at a predetermined distance from the floor surface 8 of the platform 7 or the handrail.

As described above, the provision of the winch device 21 and the wire lifting device 26 facilitates handling of the material, and reduces the chance of the material interfering with the overhead wire or the communication line. Work can be done safely and efficiently.

[0011]

However, on the floor 8 of the platform 7, the winch support 22 of the winch device 21 and the wire lifting support 27 of the wire lifting tool 26 are provided.
Since it is erected, the effective work area of the floor 8 of the platform 7 is reduced. For this reason, when the operator moves on the floor 8 of the platform 7 or when loading or handling materials, there are cases where restrictions are imposed.

The present invention is directed to an electric wire lifting device for an aerial work vehicle which solves the above-mentioned problems of the prior art, that is, an electric wire in which the effective working area of the floor 8 of the platform 7 is reduced as much as possible. It is an object to provide a lifting device.

[0013]

Means for Solving the Problems To solve the above-mentioned problems, a wire lifting device for an aerial work vehicle according to the present invention is configured as follows.

According to a first aspect of the present invention, an electric wire lifting device for an aerial work vehicle includes a base mounted on a vehicle, elevating means mounted on the base, a platform mounted on an upper end of the elevating means, and a winch. In an aerial vehicle composed of a device and an electric wire lifting device, a winch device has a winch support at a base end thereof attached to a platform, and an electric wire lifting device is attached near an upper end portion of the winch support. An electric wire guide portion provided in the electric wire lifting device for depositing and supporting the electric wire is provided above the winch device.

[0015] With this configuration, the support attached to the platform includes only the winch support and no support for the electric wire lifting tool. Therefore, it is possible to suppress the effective working area of the platform from being narrowed as much as possible, and to achieve a wire lifting device for an aerial work vehicle capable of efficiently performing an aerial work.

According to a second aspect of the present invention, in the wire lifting device for an aerial work vehicle according to the first aspect, the base end of the winch support is attached to the floor of the platform.

With such a configuration, only the winch support is provided on the floor of the platform, and there is no support for the wire lifting device. Therefore, it is possible to suppress the effective working area of the platform floor from being reduced as much as possible, and to provide an electric wire lifting device for an aerial work vehicle capable of efficiently performing an aerial work.

According to a third aspect of the present invention, a vehicle in a wire lifting device for an aerial work vehicle according to the first or second aspect is provided.
It is configured as a track-and-rail vehicle or a track-only vehicle.

[0019] With this configuration, an aerial work vehicle that works on a track where there are many opportunities to work while pushing up the electric wire, that is, an aerial work vehicle mounted on a track-and-rail vehicle or a dedicated track vehicle. Work can be done efficiently.

According to a fourth aspect of the present invention, there is provided an electric wire lifting device for an aerial work vehicle according to the first or second or third aspect, wherein the winch support comprises a base block attached to the platform, and a horizontal swing with respect to the base block. The upper block is provided with a freely movable upper block, and a fixing means capable of swinging and fixing the upper block to at least predetermined positions of a retracted position and an extended position with respect to the base block.

With this configuration, when working in a high place, when the wire lifting device is used in the retracted position, the work can be performed at a high place directly below the wire, and the winch device can be used on the platform. Materials can be handled easily. And when using the wire lifting device in the overhang position, since it is horizontally separated from the wires, it can be used at heights using the space on the platform freely,
Materials can be lifted from the ground using a winch device.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described.
This will be described with reference to FIGS. 1, 2, and 3. Code 1
7, and 11 to 16 have the same meanings as those described and used in the conventional technique, and therefore, the description of the reference numerals is omitted here.

51 is a floor surface, 56 is a winch device, 57 is
A winch support, 60 is a winch, 66 is an electric wire push-up tool, 67 is a leg, and 68 is a shaft.

The winch device 56 is mounted on the floor 51 of the platform 7 at a position 51a at one end in the longitudinal direction.
The winch device 56 has its base end 57a connected to the platform 7
A winch support 57 fixed and erected on the floor surface 51,
A winch 60 is mounted near the upper end 59b of the winch support 57.

The electric wire lifting device 66 is attached to the upper surface of the upper end 57b of the winch support 57. The wire push-up device 66 has legs 67, 67 to which the legs 67, 67 are attached and fixed to the upper surface side of the upper end 57b of the winch support 57, and a bridge fixing 67c between the upper ends 67b, 67b of the leg 67. Shaft 6
8. The guide roller 31 (the electric wire guide portion in the claims) which is mounted so as to be pivotable and slidable around the shaft portion 68.
Consists of

An aerial work vehicle A is turned on an aerial work device B attached to a vehicle 1 that can travel freely, that is, a base frame 2, an iron wheel 3 attached to the base frame 2, which can be contacted with a rail, and a base frame 2. A swivel 4 freely mounted, a boom 5 whose base end is rotatably mounted on the upper end of the swivel 4, and a boom 5 mounted on a distal end of the boom 5 so as to maintain a horizontal posture regardless of the up and down driving of the boom 5. Posture maintaining member 6, posture maintaining member 6
, A device composed of a platform 7 slidably mounted on the vehicle.

The iron wheel 3 can be freely tracked by a swing actuator 11 (not shown).
12 (not shown), the boom 5 can be moved up and down by an up / down actuator 13
14 (not shown), the posture maintaining member 6 is swingable by a posture maintaining actuator 15, and the platform 7 is driven by a oscillating actuator 16 (not shown) so as to be able to swing.

When the aerial work vehicle A configured as described above performs an aerial work, first, the vehicle 1 is driven on a road,
Go to a railroad crossing near the work site. Therefore, the iron wheel 3 is brought into contact with the track so that the track can run. Next, it travels on the track to the work site, and when it arrives, starts working at heights.

In the work at high places, the boom 5 is raised and extended appropriately, and the platform 7 is swung appropriately to perform the work at high positions.
At this time, the winch device 56 is used for loading and unloading materials on the platform 7 and supplying and holding the materials to the work object.

When the work at a high place is performed under an overhead wire or a communication line, these electric wires are deposited on the guide roller 31 of the wire pushing-up tool 66 and the work at a high place is performed.

As described above, since the winch device 56 and the electric wire pushing device 66 are provided, the material can be easily handled by the winch device 56, and the electric wire pushing device 66 allows the material to be positioned higher than the winch device 56. Since the overhead wire or the communication line is held, the chance of interference with these electric wires is reduced, and the work at a high place can be performed safely and efficiently similarly to the conventional work vehicle at a high place.

The winch support 57 is mounted on the platform floor 51, and the electric wire push-up device 66 is mounted on the winch support 57 at a predetermined distance upward from the upper end of the winch support 57. 7 has only a winch support 57 on the floor surface 51 and no support for the wire lifting tool 66. Therefore, the effective working area of the floor surface 51 of the platform 7 can be minimized from being reduced, and the loading and handling of materials and the work and moving space of the operator can be expanded as much as possible, and work at a high place can be performed efficiently. is there.

The winch support 57 is composed of a base block 58 attached to the platform floor 51 and an upper block which can swing freely with respect to the base block 58.
A configuration may be adopted in which the upper block 59 and the base block 58 are provided with fixing means 61 capable of swinging and fixing the base block 58 to at least predetermined positions of a storage position and an extended position. The fixing means 61 includes a pin hole formed at a predetermined position of a flange provided at an upper end 58b of the base block 58, and an upper block.
Even if the pin hole formed at a predetermined position of the flange provided at the lower end portion 59a of the 59 is fixed by a pin, another similar function, that is, at least the predetermined position between the storage position and the overhang position, It may be a fixing means having a function of swinging and fixing.

With this configuration, when working at a high place and using the wire push-up device 66 in the storage position,
Work at high places can be performed directly under the electric wires, and the handling of materials on the platform can be easily performed using the winch device.
When the wire lifting device 66 is used at the overhang position, since the wire lifting device 66 is horizontally separated from the wires, it can be used at a high place using the space on the platform freely, and the material is grounded using a winch device. Can be lifted from.

The base end 57a of the winch support 57
May be attached to the side surface or the lower surface of the platform 7 instead of the floor surface 51. In this way, the effective work area of the platform is suppressed from being narrowed, and the wire lifting device for the aerial work vehicle capable of efficiently performing the aerial work is provided.

In the above description, the electric wire lifting device 66 has been described as having the guide roller 31 as the electric wire guide portion. However, a device that can push up and hold the electric wire from below, such as a shoe type or a flat type, can be used. The shape is not limited as long as it is provided.

The wire guide and the winch support
It is also possible to use an insulating means and separate a predetermined distance from the 57 to secure the insulation.

The winch support 57 may be of an extendable type so that the height from the platform can be changed. Not only can the supporting height of the electric wires and the like at the time of working at high places be changed as appropriate, but also the height at the time of non-working (storage) is suppressed and traveling under the guard becomes easy. Regarding the wire pusher 66,
Similarly, the leg 67 may be of an extendable type or a bendable type. It is only necessary that the electric wire guide portion 31 be configured so as to be located above the winch device 56 when working at a high place using the electric wire lifting device 66.

Although the telescopic boom 5 has been described as the elevating means, it is needless to say that other elevating means such as a scissors type or a post telescopic type may be used.

Furthermore, the vehicle 1 has been described as a track-and-rail vehicle.
Of course, a track-only vehicle may be used.

[0041]

According to the first aspect of the present invention, a wire lifting device for an aerial work vehicle includes a base mounted on a vehicle, elevating means mounted on the base, a platform mounted on an upper end of the elevating means, and a winch. In an aerial vehicle composed of a device and an electric wire lifting device, a winch device has a winch support at a base end thereof attached to a platform, and an electric wire lifting device is attached near an upper end portion of the winch support. An electric wire guide portion provided in the electric wire lifting device for depositing and supporting the electric wire is provided above the winch device.

With such a configuration, the support attached to the platform includes only the winch support, and does not support the wire lifting device. Therefore, the effective working area of the platform is suppressed from being narrowed, and an effect is obtained that the wire pushing device of the aerial work vehicle can perform the aerial work efficiently.

In claim 2 of the present invention, claim 1
In the above described wire lifting device for an aerial work vehicle, the base end of the winch support is configured to be attached to the platform floor.

With such a configuration, only the winch support is provided on the floor of the platform, and there is no support for the electric wire lifting tool. Therefore, the effective working area on the floor of the platform is minimized from being reduced, and the wire lifting device of the aerial work vehicle capable of efficiently performing the aerial work can be obtained.

In claim 3 of the present invention, claim 1
Alternatively, the vehicle in the wire lifting device of the aerial work vehicle described in 2 is configured as a track-and-rail vehicle or a track-only vehicle.

With such a configuration, there is an effect that the work at a high place of the aerial work vehicle working on the track where there are many opportunities to work while pushing up the electric wire can be efficiently performed.

In claim 4 of the present invention, claim 1
Or the electric wire lifting device for aerial work vehicles described in 2 or 3, wherein the winch support is a base block attached to the platform, an upper block capable of swinging horizontally with respect to the base block, and an upper block attached to the base block. At least a fixing means capable of swinging and fixing at a predetermined position between the storage position and the overhang position is provided.

With this configuration, when working in a high place, when the wire lifting device is used in the retracted position, the work can be performed at a high place directly below the electric wire, and the winch device can be used on the platform. Materials can be handled easily. And when using the wire lifting device in the overhang position, since it is horizontally separated from the wires, it can be used at heights using the space on the platform freely,
This has the effect that the material can be lifted from the ground using the winch device.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an electric wire pushing-up device for an aerial work vehicle according to the present invention.

FIG. 2 is a right side view of FIG. 1 showing a main part of the present invention;
It is explanatory drawing which shows the state in which a winch support is in a storage position.

FIG. 3 is a right side view of FIG. 1 showing a main part of the present invention;
It is explanatory drawing which shows the state in which a winch support is in an extended position.

FIG. 4 is an explanatory view showing a conventional electric wire pushing-up device for an aerial work vehicle.

[Explanation of symbols]

 1 vehicle, 2 bases, 5 booms, 7 platforms, 8, 51 platform floor, 13 undulating actuator, 21, 56 winch device, 22, 57 winch support, 26, 66 wire pusher, 28 wire pusher guide, 31 Guide roller (wire guide), 58 Base block, 59 Upper block, 61 Fixing means,

Claims (4)

[Claims] An aerial work vehicle comprising a base mounted on a vehicle, elevating means mounted on the base, a platform mounted on an upper end of the elevating means, a winch device, and an electric wire lifting tool. In, the winch device attaches the winch support at the base end to the platform, and the wire push-up device is attached near the upper end of the winch support, and the wire guide portion provided on the wire push-up device to deposit and support the wires. An electric wire pushing-up device for an aerial work vehicle, which is provided above a winch device. 2. The electric wire lifting device according to claim 1, wherein a base end of the winch support is attached to a platform floor. 3. The apparatus according to claim 1, wherein the vehicle is a track-and-rail vehicle or a track-only vehicle. 4. The winch support includes a base block attached to a platform, an upper block capable of swaying horizontally with respect to the base block, and a predetermined position of the upper block with respect to at least a retracted position and an extended position with respect to the base block. 4. The device according to claim 1, further comprising fixing means capable of swinging and fixing.
An electric wire lifting device for an aerial work vehicle as described in the above.