JPH06240733A - Transport device for box culvert - Google Patents

Abstract

PURPOSE:To ensure easy positioning by providing a travel truck for loading a box culvert thereon for transport, and further providing the travel truck with a plurality of lift tables and transverse feed devices. CONSTITUTION:A long-shaped travel truck 1 as a box culvert transport device is laid in parallel and the inside thereof is made hollow. Also, a drive motor 5 is laid at the base end of the truck 1. Lift tables 3 are loaded on the truck 1 and moved up or down on the operation of cylinders 10, thereby carrying a box culvert to an installation position. Furthermore, a transverse feed device 15A is provided backward of the advance direction of the tables 3, while a transverse feed device 15-B is provided forward of the advance direction, thereby adjusting the lateral shift of the tables 3. As a result, the transport device can be used within restricted drilling cross sectional area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a box culvert conveying device which can convey a box culvert used for a sewer or the like to a setting position by mechanical force and can be installed at a fixed position.

[0002]

2. Description of the Related Art The most common laying method for precast box culverts is to hang them from above using a crane in an open-cut space. Large cranes, however, are used especially when working in narrow spaces. Cannot be used, and it is necessary to move the excavation space to the installation position using a roller or the like.

The applicant of the present application has developed various box culvert conveying devices used in such a case.
It was proposed in Japanese Utility Model Publication No. 59-18830 and Japanese Utility Model Publication No. 62-31186.

By using this transfer device, it is possible to use mechanical power instead of conventional human-powered construction, and a large box culvert can be installed quickly and safely without any labor. Became.

In particular, the transfer device disclosed in Japanese Utility Model Laid-Open No. 62-31186 is such that an elevator for raising and lowering a box culvert is further provided with a traverse device capable of transferring in a direction perpendicular to the transfer direction of the traveling carriage. As a result, accurate positioning in the direction perpendicular to the laying direction can be easily performed.

On the other hand, due to various factors such as recent densely packed houses, congestion of underground buried objects, and further reduction of construction cost, the excavation space for laying box culverts has become increasingly narrow. Absent. In extreme cases, the distance between the outer wall of the box culvert and the earth retaining sheet pile is 1
The case of about 0 to 20 cm also occurs.

[0007]

SUMMARY OF THE INVENTION However, in the above-mentioned conveying device in which the transverse feeding device is provided in front of and behind the vertically long traveling carriage, the transverse feeding device is operated by sliding the lateral feeding device at a position just lateral to the lateral feeding device. It is necessary to set the handle directly on the screw rod screwed to the lower part of the base and rotate it manually.

Therefore, a space for the operation, which the operator enters between the traveling carriage and the earth retaining sheet pile, is indispensable.
As mentioned above, in the site where the excavation cross section is limited,
The problem is that the traverse device cannot operate.

The problem to be solved by the present invention is to provide means for facilitating operation of a transverse feed device for transferring a box culvert in a direction orthogonal to the transport direction even at a site where the excavation cross section is restricted by various factors. To find out.

[0010]

A box culvert conveying device of the present invention comprises a vertically long traveling carriage for carrying a box culvert on an upper surface and a plurality of lifting and lowering means for raising and lowering the box culvert provided on the traveling carriage. A platform and a lateral feed device capable of transporting the plurality of elevators in a direction substantially orthogonal to the transport direction, and further, a lateral feed device provided on the plurality of elevators from the rear position of the traveling carriage. The above problem is solved by providing an operable remote control device.

The remote control device may be a device for operating a plurality of lateral feed devices in conjunction with each other, or a device for operating each independently. Alternatively, the transverse feed device may be electrically operated, and this operation switch may be provided at the rear position of the traveling carriage.

[0012]

In the carrying apparatus of the present invention, by providing the remote control device for the lateral feeding device that can be operated from the rear position of the traveling carriage, the operator can move the traveling carriage to the traveling carriage even in the case of a large box culvert conveying apparatus. There is no need to enter between sheet piles.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the embodiments shown in the drawings.

FIG. 1 is a perspective view of a carrying device A for a box culvert which is an embodiment of the present invention, and FIG. 2 is a cutaway side view of the same portion.

In the drawing, reference numerals 1 and 2 denote vertically elongated first and second traveling carriages 3 respectively arranged in parallel, and 3 is mounted on both base ends of the pair of first and second traveling carriages 1 and 2. The passed connection frame mounts the electric hydraulic pump 20 and is formed so as to have a U-shaped planar shape as a whole.

As shown in the front view of FIG. 3, the first traveling vehicle 1 has a hollow rectangular cross section, and a drive motor 5 arranged at the base end thereof rotationally drives wheels 6 respectively. Let Reference numeral 7 is a speed reducer, and 8 is a chain connecting the drive motor 5 and the wheel 6. The driving of the first traveling vehicle 1 is performed by remote control using the remote control switch 9 connected to the drive motor 5.

Numeral 10 is a cylinder fixed in the hollow portion, the actuator 11 of which extends and retracts vertically from an opening provided in the traveling carriage 1. The actuator 11 is operated by the remote control switch 9 described above.

Reference numeral 13 denotes an elevating table mounted on the first traveling carriage 1, which has a sectional shape which is concave downward to cover the upper surface and both side surfaces of the traveling carriage 1. This lift 13
With the box culvert mounted, the actuator 10 is moved up and down by the operation of the cylinder 10 to extend and retract.

Further, reference numeral 15 is a transverse feed device. FIG. 4 is a plan view of the transverse feed device provided at the rear of the traveling direction, FIG. 5 is a transverse feed device provided at the front, and FIG. 6 is a front view thereof.

The transverse feeding device 15 includes a support base 15a fixed to a lift base and a slide base 15b which moves on the support base 15a in a direction orthogonal to the traveling direction of the traveling carriage.
It consists of 15c is this slide base 15
Both ends are rotatably supported by the support base 15a and are screwed to the lower part of the slide base 15b by a screw rod for moving b.

In the transverse feed device 15-A provided at the rear of the traveling direction shown in FIG. 4, the handle mounting portion 1 is provided at the end of the screw rod 15c.
9 is provided, and a handle (not shown) can be set on this and rotated manually.

On the other hand, in the lateral feed device 15-B shown in FIG. 5 in the forward direction, the driven sprocket 1 at the end of the screw rod 15c.
6 is fixed, and the handle mounting portion 19 fixed coaxially with the driving sprocket 18 is provided at a rear position of the first traveling carriage 1, that is, a position where the operator can reach the rear portion of the traveling carriage 1. Installed, this driven sprocket 16
The drive sprocket 18 and the drive sprocket 18 are connected by a chain 17. Therefore, a handle (not shown) is attached to the handle attachment portion 19 provided at the lower position of the lateral feed device 15-A.
By setting and rotating, the lateral feed device 15-B in the forward direction can be operated.

The basic structure of the second traveling carriage 2 located on the left side in the traveling direction is substantially the same as that of the first traveling carriage 1 described above, and the corresponding parts are designated by the same reference numerals. ing. However, at the position corresponding to the lateral feeding device 15 of the traveling carriage 1, the box culvert mounted thereon is moved in a direction perpendicular to the traveling direction in accordance with the operation of the lateral feeding device 15.
A series of rollers 21 is provided.

Next, with reference to FIG. 7 and FIG. 8, the work of installing the box culvert B by the carrying device A having the above construction will be described.

First, a rail 31 is laid on the shoulder of a concrete roadbed 30 having a flat convex cross section, and a carrier device A is arranged on the rail 31 so as to straddle the concrete roadbed 30.

At this time, the slide base 15 of the lift 13
The cylinder 10 of the transfer device A is contracted so that the upper surface of b does not come into contact with the lower surface of the box culvert B placed on the surface of the concrete roadbed 30.

From this state, the cylinder 10 is actuated to extend the actuator 11 and raise the elevator base 13,
Box culvert B to concrete roadbed 30 like
Float from. Then, the drive motor 5 is driven to move the carrying device A in a predetermined direction, and the box culvert B is carried to the installation position.

Next, as shown in FIG. 8, the actuator of the cylinder 10 is retracted at the installation position in the vicinity of the already arranged box culvert B-1 group, so that the lifting platform 1 is moved.
3 is lowered and the box culvert B is placed on the surface of the concrete roadbed 30.

In this case, the front row box culvert B-
By the traverse device 15 provided with the slide base 15b that is moved by the screw rod 15c to align with the first group,
Perform positioning. The operation is performed by the handle mounting portion 19 of the transverse feeding device 15-A arranged rearward in the traveling direction, and the handle of the transverse feeding device 15-B arranged below the transverse feeding device 15-A in the traveling direction forward. This is done by attaching a handle (not shown) to each of the mounting portions 19. All such handle operations can be performed by extending the hand from the rear of the transport device A. By adjusting the lateral movement, the box culverts B can be effectively arranged even if they are curved, and accurate positioning can be performed by a simple operation.

When the installation of the box culvert B is completed, the carrying device A is moved to the loading place of the next box culvert, and thereafter, the work of installing the box culvert B is carried out by the same work as described above.

As described above, in the carrier device A of this embodiment, both of the two lateral feed devices 15-A and 15-B provided in front of and behind the vertically long traveling carriage 1 are the same as those of the carrier device A. Since it can be operated from the rear position, as in the past,
It is not necessary to work between the box culvert and the earth retaining sheet pile, and the transport device A can be used in a narrow excavation cross section.

In the above embodiment, the operation portion of the transverse feed device 15-B located in front is provided on the side surface of the traveling carriage 1 so as to be remotely controllable, but of course the invention is not limited to such a structure. For example, it can be provided in the connecting frame 3 part via a plurality of gear mechanisms. Further, two lateral feed devices 15-A and 15-B may be interlocked. Further, it is also possible to adopt an electric drive system and provide this operation switch in the connecting frame 3 part.

[0033]

As described above, according to the present invention, the transverse feeding device can be operated from the rear position of the carrying device, and the operation of entering the space between the box culvert and the earth retaining sheet pile as in the conventional case is not required, which cannot be used conventionally. It is possible to use the transfer device within a narrow excavated cross section.

[Brief description of drawings]

FIG. 1 is a perspective view of a carrying device for a box culvert which is an embodiment of the present invention.

FIG. 2 is a side view of the transfer device shown in FIG.

FIG. 3 is a front view of the traveling vehicle shown in FIG.

FIG. 4 is a plan view of a transverse feeding device provided on the rear side in the traveling direction.

FIG. 5 is a plan view of a transverse feeding device provided in the front in the traveling direction.

FIG. 6 is a front view of a traveling carriage.

FIG. 7 is an explanatory view of an installation work by the transfer device shown in FIG.

FIG. 8 is an explanatory view of an installation work by the transfer device shown in FIG.

[Explanation of symbols]

1 1st traveling bogie, 2 2nd traveling bogie, 3 connection frame, 5 drive motor, 6 wheels, 7 reduction gear,
8 chains, 9 remote control switches, 1
0 cylinder, 11 actuator, 13 lift, 15 traverse device, 15a support, 15b slide base, 15c screw rod, 16 driven sprocket,
17 chains, 18 driving sprockets, 19 handle mounting part, 20 hydraulic pump, 21 rollers

Claims (1)

[Claims] 1. A vertically long traveling carriage for carrying a box culvert on an upper surface thereof, a plurality of elevators provided on the traveling carriage for raising and lowering the box culvert, and the plurality of elevators are respectively substantially referred to as a conveying direction. A transverse feed device that can be moved in a direction orthogonal to each other, and a remote control device that can operate the transverse feed devices provided on the plurality of lifts from the rear position of the traveling carriage. Box culvert transport device.