JPH0748792Y2 - Grip type digging column car - Google Patents

Description

[Detailed Description of Device] a. DISCLOSURE OF THE INVENTION Object of the Invention (Industrial application field) The present invention relates to a digging column vehicle used for erection of utility poles, and further, a grip type digging column vehicle equipped with a gripping device at the tip of a boom. Regarding

(Prior Art) In the construction work for constructing a utility pole on the ground, a digging work (auger equipment) is used to dig a hole for building a utility pole, and the construction is performed while suspending the utility pole with a crane device. In many cases, not only the installation work of inserting it into the insertion hole, but also the wiring work of arranging electric wires and the like on the upper part of the utility pole after installation. Generally, the digging work and the construction work are performed using a vehicle equipped with a digging device and a crane device, which is called a digging column car, and the subsequent wire drawing work is
It is carried out using a vehicle called an aerial work vehicle, which is equipped with a work platform for mounting a worker on the tip of a boom.

(Problems to be solved by the invention) As described above, the excavation / construction work and the wire-drawing work require a vehicle dedicated to each work. There is a problem of inefficiency. Further, there is also a problem that in the construction work, the worker is burdened by supporting the telephone pole so that the telephone pole suspended by the crane device does not shift from the hole for construction.

In view of the above problems, it is an object of the present invention to provide a grip type digging column truck that can perform digging, erection and wire-line (high place) work.

B. Configuration of the Invention (Means for Solving the Problems) In order to solve the above problems, in the present invention, the boom is equipped with a digging device (auger device), and is flexibly attached to the boom tip or the boom tip. In a grip-type digging column vehicle equipped with a gripping device that is attached to the tip of the arm that can swing vertically, swing horizontally, and rotate freely. It is configured to hold a member to hold the work table or a columnar body such as a utility pole.

(Operation) By using such a grip type digging pillar car, when performing a building pillar work, first the digging device performs the digging work, and then the gripping device grips the utility pole After the work is done and the erection is completed, it is possible to perform the work at a high place such as the wire drawing work by making the gripping device grip the cylindrical gripped member of the work table and lifting the work table. You can perform construction work and work at heights without replacing the vehicle,
It leads to improvement of work efficiency. In addition, in the construction work, since the electric pole is firmly grasped by the gripping device and is surely inserted into the construction hole, the construction work becomes easy and the burden on the operator is reduced.

(Embodiment) Hereinafter, a preferred embodiment of the grip type digging column vehicle according to the present invention will be described with reference to the drawings.

FIG. 1A and FIG. 1B are a top view and a side view, respectively, of a grip type digging column.

Outriggers 3 are respectively arranged at four front, rear, left and right sides of the body 2 of the grip-type digger / columner 1. When the work is performed, these outriggers 3 are extended and the body 2 is installed horizontally on the ground. Also,
A swivel base 4 is mounted on the rear part of the vehicle body 2.
Is rotatable by the operation of a swing motor (not shown). The boom 5 attached to this swivel base 4
It is composed of a base end side member 5a and a tip end side member 5b which is expandable and contractable with respect to the base end side member 5a. At the same time, the tip side member 5b is made to expand and contract by the expansion and contraction operation of an expansion and contraction cylinder (not shown) provided in the boom 5. Further, the swivel base 4 has a cabin for an operator to operate each actuator.
4a is attached.

On the other hand, an auger device (drilling device) 6 is attached to the tip of the base end member 5a of the boom 5. The auger device 6 is composed of an auger drill 6a and an auger motor 6b, the upper end of the auger drill 6a is connected to the output shaft of the auger motor 6b, and the upper part of the auger motor 6b is suspended on the boom 5. In addition, the auger device 6 is attached to the boom 5
It is also possible to fix it to the tip side member 5b, and in this case, the auger device 6 moves as the boom 5 expands and contracts. However, FIGS. 1A and 1B show the storage state when the auger device is not used.
Is attached to the base end side member 5 a of the boom 5. When performing a digging operation using the auger device 6, first, attach the auger device 6 to the tip side member 5b of the boom 5, move the auger device 6 to an arbitrary position by extending the boom 5, and the like. First, the auger device 6 is lowered so as to be perpendicular to the ground, and the auger motor 6b is rotated (see A in FIG. 4).

At the tip of the tip side member 5b of the boom 5, the gripper arm 7a is attached.
And gripper (grasping device) via the joint member 7c
7 is attached. The gripper 7 can perform bending and stretching operations centered on the connecting portion with the boom tip portion by the extension and contraction operation of the bending and stretching cylinder 7b attached between the gripper arm 7a and the tip portion of the boom 5.

A bucket (workbench) 8 for high-altitude work, which will be described later, is fixed to the right front portion of the vehicle body 2 near the band 8a, and the bucket 8 can be used by removing the band 8a.

Further, utility pole pedestals 9 are provided on the front and rear portions of the vehicle body 2, respectively, on which utility poles can be placed for transportation.

Next, referring to FIGS. 2A, 2B and 2C, the gripper 7
The configuration of will be described.

These figures are a top view, a side view, and a cross-sectional view taken along the plane FF, respectively, showing the periphery of the gripper 7.

The gripper 7 includes a pair of grip members 71 for gripping a utility pole, a gripper cylinder 72 for opening and closing the grip member 71, a grip member 71 and a gripper cylinder 72.
And a link mechanism (which is formed in a Y shape by the two link members 74 and the guide member 75) for connecting and the gripper cylinder 72, and further extends to the right side (the grip member 71 side) in the drawing. And a gripper housing 73 provided in the.

The left side (the side covering the gripper cylinder 72) of the gripper housing 73 has a cylindrical shape, and the right side has a prismatic shape. Further, the upper and lower surfaces of the right end of the gripper housing 73 are opened in a T shape, and the fulcrums 71b of the grip member 71 are pivotally attached to both ends of the T shape. Further, the grip member 71 is provided with an action point 71c offset inward from the fulcrum 71b, one end of each of the two link members 74 is pivotally attached to the action point 71c, and the other end of the link member 74 is Link members on the other side
It overlaps with the other end of 74 and is pivotally attached to one end of a guide member 75 that slides along the inner wall of the gripper housing 73, and the other end of the guide member 75 is connected to the piston rod 72a of the gripper cylinder 72.

In the gripper 7 having such a configuration, when the gripper cylinder 72 extends, the grip member 71 is pushed outwardly around the fulcrum 71b, and when the gripper cylinder 72 contracts, the grip member 71 moves around the fulcrum 71b. For example, the electric pole 90 and the columnar gripped member 83 of the bucket 8 to be described later are gripped by being closed inside.

Since the guide member 75 is guided by the gripper housing 73, the grip member 71 is symmetrically opened and closed.

Further, in order to grip a comparatively small-diameter member such as the columnar gripped member 83, the grip member 71 is provided with notches 71e and 71e 'at the tip end thereof in a staggered manner.
The tips of the can intersect.

On the other hand, a cylindrical member 76 is attached so as to cover the prismatic portion of the gripper housing 73 (see FIGS. 2B and 2C), and further, the cylindrical member 76 is inserted in the cylindrical rotation support member 77. It penetrates and is rotatably attached to this. Further, a worm wheel 78 is attached to the outer periphery of the side surface of the cylindrical member 76 concentrically with the cylindrical member 76, and is rotatably attached to the worm wheel 78 and a support member 77a attached to the outside of the rotation support member 77. When the gripper rotation motor 79a connected to the worm pinion 79 is rotated, the worm wheel 78, that is, the gripper 7 is rotated with respect to the rotation support member 77. (For example, the gripper 7 rotates 90 ° until the state shown by the chain double-dashed line E in FIG. 2B is reached).

As shown in FIGS. 2B and 2C, the rotation support member 77 is supported by the joint member 7c so that its side surface is sandwiched from above and below, and is slidable around the support point.
Also, the horizontal swing cylinder 7d is attached to the lower end of the joint member 7c.
Is pivoted on its side surface, and the piston rod of this horizontal swing cylinder 7d pushes or pulls the swinging member 77b fixed to the supporting member 77a, so that the gripper 7 moves to the 2A position.
From the position shown by the chain double-dashed line A in the figure to the position shown by the same B, it is swingable in the left-right direction, that is, it is swingable horizontally.

Further, the joint member 7c is pivotally attached to the tip of the gripper arm 7a, and the joint member 7c, that is, the gripper 7, is moved by the expansion and contraction operation of the vertical swing cylinder 7e attached between the joint member 7c and the gripper arm 7a. From the position shown by the chain double-dashed line C in FIG. 2B to the position shown by D in FIG.

In addition, as described above, the gripper arm 7a and the gripper 7 are flexed / extended integrally by the expansion / contraction operation of the flexion / extension cylinder 7b attached between the gripper arm 7a and the boom tip.

By controlling the vertical / horizontal swing of the gripper 7, the rotation and rotation of the boom, the ups and downs, and the bending and stretching of the gripper arm 7a, the electric pole mounted on the electric pole pedestal 9 in FIG. 1 is grasped and lifted, It is possible to carry out the building work without shifting from the building hole drilled by the above-mentioned drilling work (see B in FIG. 4).

Next, with reference to FIG. 3, a bucket for use by a worker to be used when working at a high place will be described.

The bucket 8 is composed of a box portion 81 on which an operator rides, and a columnar grasped member 83 whose upper and lower ends are supported by columnar supporting members 82 on the side surface of the box portion 81. When the bucket 8 is used Grips the columnar gripped member 83 by the grip member 71 of the gripper 7. In this way, after the installation work of the utility pole, if the gripper 7 that has been holding the utility pole until then grips the bucket 8, it is possible to perform work at a high place such as drawing work of the installed pole (fourth). (See Figure C).

If the operation of the gripper 7 and the boom 5 described above is performed by a remote controller, the operator can perform a digging / building operation while confirming the building hole. Further, when performing work at a high place, a worker who rides on the bucket 8 can easily move the bucket 8 to a desired position by operating the remote controller by himself / herself.

C. Effect of the Invention As described above, by using the grip-type digging pole truck according to the present invention, from digging work for constructing utility poles, erection work of utility poles and wire-line work after construction poles, etc. Since work up to height can be performed without replacing the vehicle, work efficiency is improved. In addition, during the construction work, since the utility pole is firmly grasped by the gripping device and inserted into the construction hole surely, the utility pole sways like the case where the crane device is used for the construction work. Installation work is easy without shifting from the hole, and the burden on the operator can be reduced.

[Brief description of drawings]

FIGS. 1A and 1B are a top view and a side view showing a grip type digging column vehicle according to the present invention, and FIGS. 2A, 2B and 2C show the grip type digging column vehicle. Top view, side view and sectional view of the equipped gripper, FIG. 3 is a perspective view showing a bucket mounted on the grip type digging column vehicle, and FIG. 4 is the grip type digging column vehicle. It is a conceptual diagram which shows the working state using. 1 ... Gripping-type digging column vehicle 5 ... Boom, 6 ... Auger device 7 ... Gripper, 8 ... Bucket

Claims (1)

[Scope of utility model registration request] 1. A boom which is capable of swiveling, undulating and extending and contracting, a digging device mounted on the boom, an arm flexibly attached to the tip of the boom, and a vertical swinging motion at the tip of the arm. In a grip-type digging column vehicle having a gripping device that is freely swingable and rotatable, the gripping device includes a gripper having an arcuate gripping inner surface, and the gripper is provided on a side portion of a workbench. A grip-type digging column vehicle characterized in that it is possible to selectively grip a work table by gripping a cylindrical member to be gripped and a columnar body such as a utility pole.