JPH0736953Y2 - Concrete block carrier - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete block carrying device suitable for carrying a symmetrical concrete block having a box shape, a U shape or the like to a predetermined place.

[0002]

2. Description of the Related Art For example, a conventional construction method for constructing a culvert by laying box culverts in a sequentially connected state is a method of constructing a culvert along the upper side edges of the digging groove along the digging groove. In this method, a box culvert is hung from a gate-shaped crane that is provided with rails and travels on the rails, and the box culvert is transported to a predetermined place.

However, such a large-scale transportation method using a gate-type crane has a problem that the transportation cost increases, and in some cases, the crane cannot be introduced depending on the construction site, which may cause significant difficulty in the construction. .

An object of the present invention is to provide a simple concrete block carrying device capable of solving such a problem.

[0005]

To solve the above problems, the present invention employs the following means. That is, a concrete block carrying device according to the present invention (hereinafter referred to as a carrying device)
Is the outer side surface part 3 of the concrete block that faces the left and right.
3 at least before and after the wheel 11 at the lower end of the jack 11.
Detaching the running device 5 formed by providing a freely mounting, the running
The device 5 is a self-propelled device driven by a motor, and the jack 11 is extended (not necessarily in a fully extended state.
With respect to the technical significance of
It is characterized in that 2 is adapted to project downward in the block.

The carrying device according to the present invention may be constructed as follows. That is, an insert 6 having a horizontal axis line is embedded at least in front of and behind the outer surface portions 3 and 3 of the concrete block which are opposed to each other on the left and right sides.
The screw portion 9 of the fixing bolt 7 is screwed and tightened so that the fixing shaft portion 10 of the fixing bolt is projected from the outer side surface portion 3 and the fixing shaft portion 10 is inserted into the upper end of the hydraulic jack 11a. 17 is provided and the hydraulic jack 11a
The central portion of the wheel holding frame 19 in the front-rear direction is fixed to the lower end of the wheel holding frame 19 and the wheels 12, 12
The traveling device 5 provided with the hydraulic jack 11a.
In a contracted state (not necessarily in a completely contracted state. The same applies to the technical meaning of "reduction" hereinafter), by inserting the fixed shaft portion 10 into the cylindrical portion 17, the hydraulic jack is detachably attached to the outer side surface portion of the block. It is preferable that the wheel 12 is projected downward in the block due to the extension.

The carrying device according to the present invention may be constructed by detachably mounting traveling devices 5 at three positions in the front and rear and in the center of the outer surface portions 3 and 3 of the concrete block which are opposed to each other on the left and right. In this case, it is preferable that the central jack extends slightly longer than the front and rear jacks so that the wheels of the central jack can project more downward in the block than the wheels of the front and rear jacks.

[0008] In each of the conveying device according to the present invention, also
In a carrier having the following configuration, namely
At least the left and right outer surface portions 3 and 3 of the boot block
Also, the wheels 12 are provided at the lower end of the jack 11 in the front and rear.
The traveling device 5 is detachably attached to the jack 11
The extension causes the wheel 12 to project downward in the block
In the carrying device configured as described above, the jack 11 may be fixed to the fixture 30 having the support piece 33 on which the lower surface of the side portion 31 of the block is placed.

In the carrying device according to the present invention, the traveling device 5 is preferably constructed as a self-propelled device driven by a motor, and the traveling direction of the wheels is preferably adjustable.

[0010]

When a concrete block (for example, a symmetrical block such as a box-shaped block or a U-shaped block) 2 installed at a certain place is transported to a predetermined place, the outer side surface parts 3, 3 of the block are conveyed. At least before and after, the traveling device 5 is attached with the jack 11 in a contracted state. After that, when the jack 11 is extended, the block 2 is supported by the wheels 12 of each traveling device and the block 2 floats, whereby the block can be transported by traveling the wheels. When the traveling device is attached not only to the front and rear of the outer side surface of the block but also to the center of the block, the wheel of the central jack is protruded more downward in the block than the wheels of the front and rear jacks. It is easy to adjust the direction when it is necessary to curve.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, a carrier device 1 according to the present invention is self-propelled by a motor drive in front of and behind front and rear facing outer surface portions 3 and 3 of a concrete block (for example, a box-shaped block).
The traveling device 5 of a type is detachably attached.

Outer side surface parts 3 and 3 of the block 2 facing each other.
Before and after, the insert 6 having a horizontal axis is embedded, and the threaded portion 9 of the fixing bolt 7 is screwed into the insert 6 so as to project the fixing shaft portion 10 of the fixing bolt from the outer side surface portion 3. (Fig. 3).

The traveling device 5 is provided with wheels 12 at the lower end of a jack 11, which wheels are driven to rotate by a motor.
It is tightened. The jack 11 is constituted by a hydraulic jack 11a as shown in FIG.
It is possible to extend by supplying hydraulic pressure to the hydraulic pressure supply port 15 of No. 3. Further, a cylinder portion 17 into which the fixed shaft portion 10 is inserted is provided at the upper end of the rod 16, and a center portion of the wheel holding frame 19 in the front-rear direction is fixed to the lower end of the cylinder 13, so that the front and rear portions of the wheel holding frame 19 are fixed. Wheels 12, 12 are pivotally supported by each of the. Also, the cylinder 13
In order to allow the traveling direction of the wheels to be adjustable, as shown by the arrow in FIG. 2, the rod 16 is rotatable about the axis by a required angle.

As shown in FIG. 3, in the traveling device 5 having such a structure, when the hydraulic jack 11a is in the contracted state, the fixed shaft portion 10 is inserted into the tubular portion 17 and is screwed into the screw hole 20 provided in the tubular portion 17. Tip part 2 of fixing screw 21
The block 2 is attached to the block outer side surface portion 3 by engaging the concave groove 23 provided around the fixed shaft portion. In addition,
Since the traveling direction of the wheel 12 can be adjusted by the rotation of the cylinder 12 around the axis, the hydraulic jack 11a is slightly separated from the outer surface portion 3 and the tubular portion 17 is fixed to the fixed shaft portion 10.

The hydraulic jacks 11a of the traveling devices extend at the same time, and as shown in FIG.
As the block 2 projects, the block 2 changes from the grounded state shown in FIG. 3 to the floating state shown in FIG. By pushing or pulling the block 2 in the traveling direction in this floating state, the block can be transported by wheel traveling.
As shown in FIGS. 1 and 4, the transportation is performed by mounting the wheels 12 on rails 26 laid on the left and right sides of the block and made of, for example, a relatively thick flat iron. At this time, wheel removal is prevented by appropriately turning the cylinder 13 about its axis to steer it. When all the hydraulic cylinders are reduced at the same time after being transported to a predetermined place, the block 2 becomes the grounded state shown in FIG. In this state, the cylindrical portion 17 is removed from the fixed shaft portion 10 as shown by the alternate long and short dash line in FIG.

In order to prevent wheel removal, the collar 27 may be provided on one side of the wheel 12 as shown in FIG. 5, or the collars 27, 27 may be provided on both sides of the wheel 12 as shown in FIG.

FIG. 7 shows a case where the traveling device 5 is attached to the fixed shaft 29, which is fixed by being inserted through the insertion hole 28 formed in the side wall portion of the block, in the same manner as described above.
In this case, when there is a possibility that the fixed shaft 29 may come off from the insertion hole 28, it is preferable to block the outward movement of the wheel by a standing piece 24 provided on the outer edge of the rail 26, as shown in FIG. 7, for example.

FIG. 8 shows another mode in which the traveling device 5 is attached to the outer side surface portion 3 of the block by using the Z-shaped attachment metal fitting 30. The attachment metal fitting 30 is provided on the side portion 31 of the block. At the outer edge of the support piece 33 on which the lower surface 32 is placed, a rising piece 35 that is in contact with the outer side surface portion 3 and stands up is formed by bending, and at the upper end thereof, an outwardly protruding bolt hole 36 is formed.
The horizontal piece 37 provided with is bent and formed. The mounting bracket is appropriately reinforced by the reinforcing ribs. The horizontal piece 37 is integrated with the rod 16 by screwing a fixing bolt 39, which is inserted through the bolt hole 36, into a screw hole 40 at the upper end of the rod 16 of the hydraulic cylinder. However, when the hydraulic jack 11a extends, the support piece 37 lifts the block 2.

The jack 11 constituting the carrying device according to the present invention can be constructed using a screw type jack or the like in addition to the hydraulic cylinder. The traveling device may be configured as a self-propelled device such as a motor drive.

Further, in the carrying device according to the present invention, the traveling device 5 may be attached not only to the front and rear of the outer side surface of the block but also to the center thereof, as shown in FIG. 9, for example. In this case, the jack 11A of the traveling device 5a at the center is extended to be slightly longer than the front and rear jacks 11B and 11B, and the wheels 12 of the central jack 11A are moved downward in the block more than the wheels 12 of the front and rear jacks. When the block needs to be curved by making it protrude a lot, the direction can be easily adjusted as shown in FIG.

[0021]

According to the carrying device of the present invention, after the traveling device having the jack in the contracted state is attached to the outer side surface of the block and the block is levitated by extending the jack, the block is predetermined by the wheel traveling. It can be easily transported to a place. After the transportation, the transportation can be completed by reducing the jack and removing the traveling device.

From the above, the carrying device according to the present invention can greatly simplify the carrying means and can reduce the construction cost, as compared with the case where the block is carried by using a large-scale gate crane as in the past. Can be reduced. Further, since it is easy to carry the block even at the construction site where it is difficult to carry in the gate crane, the target construction becomes easy even at the site where the construction is difficult due to the transportation surface of the block.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating an embodiment of the present invention.

FIG. 2 is an exploded perspective view illustrating an example of how the traveling device is attached to the outer surface of the block.

FIG. 3 is a front view illustrating a state in which the traveling device in which the hydraulic jack is in a contracted state is attached to the block outer surface portion.

FIG. 4 is a front view for explaining a state where the block floats as the hydraulic jack extends.

FIG. 5 is an explanatory diagram illustrating an example of a collared wheel.

FIG. 6 is an explanatory diagram illustrating another example of the collared wheel.

FIG. 7 is an explanatory diagram illustrating a state in which the traveling device is mounted via a fixed shaft inserted through an insertion hole provided in a side wall portion of the block in a state where the hydraulic jack is extended.

FIG. 8 is an explanatory diagram illustrating a state in which the traveling device is attached to the outer surface portion of the block using a Z-shaped attachment fitting.

FIG. 9 is a side view showing a case where the traveling device is also attached to the central portion of the outer side surface portion of the block, in a state in which the central wheel is further projected.

FIG. 10 is an explanatory view for explaining the direction adjustment of the block in a state where the central wheel is made to protrude further.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carrying device 2 Concrete block 3 Block outer surface part 5 Traveling device 6 Insert 7 Fixing bolt 9 Screw part 10 Fixed shaft part 11 Jack 11a Hydraulic jack 12 Wheel 17 Tube part 19 Wheel holding frame

Claims (8)

[Scope of utility model registration request] 1. A traveling device 5 having wheels 12 provided at the lower end of a jack 11 is detachably attached to at least front and back of outer surface parts 3 and 3 of a concrete block which are opposed to each other, and the traveling device 5 is driven by a motor. With a running type
The concrete block carrying device is characterized in that the wheel 12 is projected downward in the block by the extension of the jack 11. 2. An insert 6 having a horizontal axis is embedded at least in front of and behind the lateral surface portions 3 and 3 of the concrete block which are opposed to each other, and a screw portion 9 of a fixing bolt 7 is screwed into the insert 6 for tightening. Then, the fixed shaft portion 10 of the fixing bolt is projected from the outer side surface portion 3, and a cylinder portion 17 into which the fixed shaft portion 10 is inserted is provided at the upper end of the hydraulic jack 11a.
A central portion of the wheel holding frame 19 in the front-rear direction is fixed to the lower end of the wheel a, and the wheels 12, 1 are attached to the front and rear of the wheel holding frame 19.
2 is provided with the traveling device 5 and the hydraulic jack 11
By inserting the fixed shaft portion 10 into the tubular portion 17 in the contracted state of a, it is detachably attached to the block outer surface portion, and the wheel 12 is projected downward in the block by the extension of the hydraulic jack. Characteristic concrete block carrier. 3. Jacks 11 are provided at three positions on the front and rear and in the center of the outer surface portions 3, 3 of the concrete block which are opposed to each other on the left and right.
The traveling device 5 provided with wheels 12 is detachably attached to the lower end of the jack, and the extension of the jack 11 causes the wheels 12 to project downward in the block. The central jack extends slightly longer than the front and rear jacks. Then, the concrete block carrying device is characterized in that the wheels associated with the central jack can project more downward in the block than the wheels associated with the front and rear jacks. 4. The jack 11 comprises a side portion 31 of the block.
Fixing bracket 30 having a supporting piece 33 for mounting the lower surface of the
The concrete block carrying device according to claim 3, which is fixed to the concrete block. 5. The left and right outer sides of the concrete block.
At least before and after the side surface portions 3 and 3, the lower end of the jack 11
Attach the travel device 5 formed by providing a wheel 12 in the removable self standing in
The extension of the jack 11 causes the wheel 12 to block.
The jack 1 is adapted to protrude downward.
1 is a support for placing the lower surface of the side portion 31 of the block
Specially, it is fixed to the fixing bracket 30 having the piece 33.
Conveying device for concrete blocks to collect. 6. The concrete block transporting device according to claim 2, 3, 4 or 5, wherein the traveling device 5 is a self-propelled device driven by a motor. 7. The traveling direction of the wheels is adjustable
The concrete brick according to claim 1, 2, 3, 4, 5 or 6.
Lock carrier. 8. Outside of concrete blocks facing each other
At least before and after the side surface portions 3 and 3, the lower end of the jack 11
The traveling device 5 including wheels 12 is detachably attached
The traveling direction of the wheel can be adjusted, and the jack 1
The extension of 1 causes the wheel 12 to move downward in the block.
Concrete block characterized by being made to project
Transporting device.