JPH0656093U - Concrete block carrier - Google Patents

Abstract

(57) [Summary] [Purpose] A symmetrical concrete block that is box-shaped or U-shaped is easily transported to a specified location. [Structure] The traveling device 5 is detachably attached to the front and rear of the outer surface portions 3 and 3 of the concrete block which are opposed to each other on the left and right. The traveling device 5 is provided with wheels 12 at the lower end of the jack 11. The extension of the jack 11 causes the wheels 12 to project downward in the block.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete block carrying device which is suitable for use in carrying a box-shaped or U-shaped symmetrical concrete block to a predetermined place.

[0002]

[Problems to be solved by conventional techniques and devices]

 For example, in the conventional method of constructing an underdrain by laying box culverts in a sequentially connected state, rails are arranged along the excavation groove at both upper edge portions of the excavation groove of the laid ground, and a gate that runs on the rail is run. A box culvert was hung on a crane and transported to a fixed location.

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

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

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention adopts the following means. That is, the concrete block carrying device according to the present invention (hereinafter referred to as a carrying device) comprises a traveling device 5 having wheels 12 provided at the lower end of a jack 11 at least in front of and behind the left and right outer surface portions 3, 3 of the concrete block. The wheel 12 is detachably attached, and the wheel 12 is made to project downward in the block by extension of the jack 11 (not necessarily in a fully extended state. The same applies to the technical meaning of "extension" below). It is what

The carrying device according to the present invention may be configured as follows. That is, an insert 6 having a horizontal axis 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, and a screw portion 9 of a fixing bolt 7 is screwed and tightened to the insert 6. A fixing shaft portion 10 of the fixing bolt is projected from the outer side surface portion 3, a cylinder portion 17 into which the fixing shaft portion 10 is inserted is provided at an upper end of the hydraulic jack 11a, and a wheel holding frame is provided at a lower end of the hydraulic jack 11a. The hydraulic jack 11a is in a contracted state (not necessarily in a completely contracted state) in the traveling device 5 in which the front and rear direction central portion of 19 is fixed and the wheels 12, 12 are provided in front and rear of the wheel holding frame 19. (The same applies to the technical meaning of "reduction" hereinafter), by inserting the fixed shaft portion 10 into the tubular portion 17, the detachable attachment to the block outer surface portion is performed. By extension of the hydraulic di Yakki, the wheel 12 is better to be configured so as to protrude downward of the block.

The transporting device according to the present invention may be constructed by detachably mounting traveling devices 5 at three positions in front of and behind 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. 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.

In the carrying apparatus according to the present invention, the jack 11 may be fixed to a fixing member 30 having a 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 configured as a self-propelled device driven by a motor, and the traveling direction of wheels is preferably adjustable.

[0010]

[Action]

 However, when transporting 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 to a predetermined place, at least the outer surface portions 3, 3 of the block are to be transported. The traveling device 5 is attached to the front and rear 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, the wheels of the central jack are projected more downward than the wheels of the front and rear jacks. , It becomes easy to adjust the direction when the block needs to be curved.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, a carrying device 1 according to the present invention comprises a traveling device 5 which is detachably attached to the front and rear of opposing outer surface portions 3 and 3 of a concrete block (for example, a box-shaped block) 2.

An insert 6 having a horizontal axis is embedded in front of and behind the opposing outer surface portions 3, 3 of the block 2, and a screw portion 9 of a fixing bolt 7 is screwed and tightened to the insert 6. The fixing shaft portion 10 of the fixing bolt is projected 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. The jack 11 comprises a hydraulic jack 11a as shown in FIG. 2, and can be extended by supplying hydraulic pressure to a hydraulic pressure supply port 15 of a cylinder 13 thereof. Further, a cylindrical portion 17 into which the fixed shaft portion 10 is inserted is provided at the upper end of the rod 16, and the center portion of the wheel holding frame 19 in the front-rear direction is fixed at the lower end of the cylinder 13, so that the wheel holding frame 19 has a central portion. Wheels 12, 12 are pivotally supported at the front and rear respectively. Further, since the cylinder 13 can adjust the traveling direction of the wheels, as shown by an arrow in FIG.

As shown in FIG. 3, the traveling device 5 having such a configuration allows the fixed shaft portion 10 to be inserted into the tubular portion 17 and the screw hole 20 provided in the tubular portion 17 when the hydraulic jack 11a is in a contracted state. The distal end portion 22 of the fixing screw 21 to be screwed is engaged with the groove 23 provided around the fixed shaft portion to be attached to the block outer surface portion 3. In addition, since the traveling direction of the wheels 12 can be adjusted by rotating the cylinder 12 about its axis, the hydraulic jack 11a is slightly separated from the outer side surface portion 3 and the cylinder portion 17 is fixed to the fixed shaft portion 10. .

The hydraulic jacks 11a of the traveling devices are simultaneously extended, and the wheels 12 project downward in the block as shown in FIG. 4, so that the block 2 moves from the grounded state shown in FIG. It will be in the floating state shown in. In this floating state, by pushing or pulling the block 2 in the traveling direction, the block can be transported by wheel traveling. As shown in FIGS. 1 and 4, the transportation is performed by placing the wheels 12 on rails 26, which are laid on the left and right sides of the block and are made of, for example, a relatively thick flat iron. At this time, the cylinder 13 is appropriately rotated around the axis to steer the cylinder 13 to prevent wheel loss. 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 tubular portion 17 is removed from the fixed shaft portion 10 as indicated 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 inserted and fixed in the insertion hole 28 provided in the side wall of the block in the same manner as described above. In this case, when the fixed shaft 29 may come off from the insertion hole 28, for example, as shown in FIG. 7, the outward movement of the wheel is blocked by the standing piece 24 provided at the outer edge of the rail 26. Is good.

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, and the attachment metal fitting 30 is the side portion 31 of the block. At the outer edge of the support piece 33 on which the lower surface 32 of the above is placed, a rising piece 35 that rises in contact with the outer side surface portion 3 is bent and formed, and at the upper end of the horizontal piece, a bolt hole 36 is provided and protrudes outward. The piece 37 is formed by bending. The fitting is appropriately reinforced by a reinforcing rib. 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. As 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 by using a screw type jack or the like in addition to the hydraulic cylinder. The traveling device may also 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 wheel 12 of the central jack 11A is below the block 12 than the wheels 12 of the front and rear jacks. When the block needs to be curved, the direction can be easily adjusted as shown in FIG. 10 by making the block protrude more in the direction.

[0021]

[Effect of device]

 In the case of the carrying device according to the present invention, after the traveling device in which the jack is in the contracted state is attached to the outer surface portion of the block and the block is floated by extending the jack, the wheel can easily move the block to a predetermined position. Can be transported to. After transportation, the transportation can be completed by reducing the jack and removing the traveling device.

From the above, according to the carrying apparatus of the present invention, the carrying means can be greatly simplified compared to the case where the block is carried by using the conventional large-sized gate crane, and the construction can be performed. The cost can be reduced. In addition, since the blocks can be easily transported even in the construction site where it is difficult to carry in the gate crane, the target construction will be easy even in the construction site where the construction of the blocks is difficult.

[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 attached via a fixed shaft that is inserted into an insertion hole provided in a side wall portion of the block in a state in which 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 Outer surface part of block 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 (6)

[Scope of utility model registration request] 1. A traveling device 5 having a wheel 12 provided at a lower end of a jack 11 is detachably attached to at least front and rear of outer side surface portions 3 and 3 of a concrete block, which are opposed to each other, and the wheel 12 is extended by extending the jack 11. The concrete block carrying device is characterized in that the projecting portion projects downward from the block. 2. An insert 6 having a horizontal axis is embedded at least in front of and behind the outer surface portions 3, 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 of the central jack can project more downward in the block than the wheels of 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 1 or 3, which is fixed to the concrete block. 5. The concrete block carrying device according to claim 1, 2, 3 or 4, wherein the traveling device 5 is a self-propelled device driven by a motor. 6. The concrete block carrying device according to claim 1, wherein the traveling direction of the wheels is adjustable.