JPH0761797A - Concrete secondary manufacture installing device - Google Patents

Abstract

PURPOSE:To remarkably improve the installing work efficiency, and to move manufactures easily and quickly between installation sites or between construction sites. CONSTITUTION:A support means (e.g. boom crane 3) is supported on the load- carrying platform 2 of a truck 1, and a balancer unit 5 including a first arm 10 freely turned horizontally to the support means (e.g. boom crane 3), a second arm 11 freely turned horizontally to the first arm 10, and a hook 12 suspended from one end of the second arm 11 in such a manner as to be freely elevated is attached to the support means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete secondary product installation device which is a labor-saving device for efficiently and easily installing a concrete secondary product such as a concrete block.

[0002]

2. Description of the Related Art For example, when installing a concrete block used as a curb or a gutter of a road, place each concrete block on a pallet at the installation site on the installation site manually, using a unicycle or a backhoe, etc. at an installation pitch. It is customary to move it horizontally, install it while adjusting the height.

However, in the case of the above working method, it takes a lot of time to move the concrete block from the pallet to the installation site, and when it becomes heavy, the concrete block which weighs about 100 kg is leveled.
Since the height must be adjusted by 2 to 3 degrees, the alignment work is extremely difficult, and there is a problem in that the operator is physically distressed.

As a means for dealing with the above problems,
There is one in which a crawler carrier is equipped with a balancer unit, and a concrete block is lifted by the balancer and conveyed to a construction site. The balancer unit balances the load of a concrete block by air pressure, and is known as being extremely convenient for carrying various works to a predetermined position in an unloaded state.

[0005]

However, since there is no facility for loading concrete blocks on the crawler carrier, it is necessary to transport the concrete blocks one by one from the pallet to the installation site, resulting in extremely poor work efficiency. At the same time, the traveling speed is slow and the vehicle cannot be driven on public roads, so there is a problem that the vehicle has to rely on movement by a truck.

The present invention has been made in view of the above points, and aims to greatly improve the installation workability and to enable easy and quick movement between the installation site and the construction site. It is intended.

[0007]

According to a first aspect of the present invention, as a means for solving the above-mentioned problems, a first means for supporting a supporting means on a loading platform of a truck and horizontally swinging with respect to the supporting means. A balancer unit including an arm, a second arm that is horizontally rotatable with respect to the first arm, and a hook that is vertically hung from one end of the second arm is attached.

According to a second aspect of the invention, as a means for solving the above-mentioned problems, in the concrete block secondary product installation device according to the first aspect, the supporting means is a boom of a boom crane.

According to a third aspect of the present invention, as means for solving the above-mentioned problems, in the concrete block secondary product installation device according to the first or second aspect, for holding the horizontal state of the loading platform on the truck. An outrigger is attached.

According to a fourth aspect of the present invention, as means for solving the above-mentioned problems, in the concrete block secondary product installation device according to the first, second or third aspect, the first and second arms are in a retracted state. A regulating means for positioning and fixing is attached.

According to a fifth aspect of the present invention, as means for solving the above-mentioned problems, in the concrete block secondary product installation device according to the first, second or third aspect, the first and second arms are restricted from turning. First and second braking means are provided.

[0012]

According to the first aspect of the invention, the following actions can be obtained by the above means.

That is, a concrete secondary product such as a concrete block is placed on a pallet, loaded on a truck bed, and moved to an installation site. At the installation site, a balancer unit is used to move the product from the pallet to the construction site. It will be carried one by one. In addition, since the secondary concrete product is carried by the balancer unit in a state in which it is almost weightless, it is possible to perform the positioning easily and accurately with a very small force.

According to the second aspect of the invention, the following effects can be obtained by the above means.

That is, loading and unloading of pallets (on which concrete secondary products are placed) on the loading platform is performed by a boom crane which is a supporting means. Further, since the balancer is supported by the boom of the boom crane, the horizontal swing of the boom further expands the carry range of the secondary concrete product by the balancer unit.

According to the invention of claim 3, the following effects can be obtained by the above means.

That is, even when the truck has to stop on a sloping ground, the outrigger can bring the loading platform into a horizontal state, and the balancer unit does not hinder the carrying of the secondary concrete product.

According to the invention of claim 4, the following effects can be obtained by the above means.

That is, the first part constituting the balancer unit
Since the second arm is positioned and fixed in the retracted state by the regulation force of the regulation means, it does not hinder the operation of the boom crane and the traveling of the truck.

According to the invention of claim 5, the following effects can be obtained by the above means.

That is, the first part constituting the balancer unit
Since the first arm and the second arm are regulated to rotate by the first and second brake means, respectively, when the first and second arms are braked during the installation work of the concrete secondary product, the sloping ground will be slightly different. Even when performing work, the first and second arms do not turn carelessly. Further, if the brakes are applied while the first and second arms are stored, the operation of the boom crane and the traveling of the truck will not be hindered.

[0022]

According to the first aspect of the present invention, the supporting means is supported on the bed of the truck, and the first arm which is horizontally rotatable with respect to the supporting means and the horizontally rotatable with respect to the first arm. A secondary concrete product such as a concrete block or the like is placed on a pallet by attaching a balancer unit including a second arm and a hook hung vertically from one end of the second arm. It was loaded on the truck bed and moved to the installation site. At the installation site, the balancer unit was used to carry one by one from the top of the pallet to the construction site. There is no need to go out to the point, and the secondary concrete products are carried by the balancer unit in a state of weightlessness. , It will be performed very easily and accurately positioning a small force, an excellent advantage of being able greatly improve the working efficiency. Further, since the balancer unit is attached to the truck on which the concrete secondary product can be loaded, there is an excellent effect that the balancer unit can be freely moved and the concrete secondary product can be freely conveyed.

According to the second aspect of the present invention, in the concrete block secondary product installation device according to the first aspect, since the supporting means is the boom of the boom crane, the pallet (concrete secondary product for the secondary product) is mounted on the loading platform. The loading and unloading of the concrete secondary product is carried out by a boom crane, which is a supporting means, and there is an excellent effect that the secondary concrete product can be unloaded and transported efficiently. Further, since the balancer is supported by the boom of the boom crane, the carry range of the secondary concrete product by the balancer unit can be further expanded, and the work efficiency can be further improved.

According to the invention of claim 3, in the concrete block secondary product installation device of claim 1 or 2, the truck is provided with an outrigger for holding the horizontal state of the loading platform. Even if the vehicle has to stop on a sloping ground, the outrigger can bring the loading platform into a horizontal state, which is an excellent effect that the secondary concrete product can be safely carried by the balancer unit.

According to the invention of claim 4, in the concrete block secondary product installation device of claim 1, 2 or 3, a restricting means for positioning and fixing the first and second arms in the retracted state is additionally provided. Therefore, the first and second arms constituting the balancer unit can be positioned and fixed in the retracted state by the regulation force of the regulation means, which does not hinder the operation of the boom crane and the traveling of the truck. effective.

According to the invention of claim 5, in the concrete block secondary product installation device of claim 1, 2 or 3, first and second braking means for respectively restricting the turning of the first and second arms are attached. As a result, the first and second arms constituting the balancer unit are regulated to turn, and even when the secondary concrete product is installed, even if the work is performed on a slight slope, The second arm does not turn carelessly, work safety can be ensured, and the operation of the boom crane and the traveling of the truck will not be hindered when the first and second arms are stored. It has an excellent effect.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In each of the embodiments of the present invention, a loading type truck crane called a cargo crane is adopted as a concrete secondary product installation device.

Embodiment 1 FIGS. 1 to 4 show a concrete secondary product installation apparatus according to Embodiment 1 of the present invention. The present embodiment corresponds to the invention of claims 1 to 4.

As shown in FIGS. 1 and 2, the concrete secondary product installation device of the present embodiment has a loading platform 2 of a truck 1.
The balancer unit 5 is supported on the top surface of the tip of the boom 4 of the boom crane 3 supported by the chassis 2a that constitutes a part of the above. That is, in the case of the present embodiment, the boom 4 of the boom crane 3 acts as a support means for supporting the balancer unit 5. Reference numeral 6 is a swivel base of the boom crane 3, 7 is a hook portion of the boom crane 3, and 8 is a driver's seat of the truck 1.

On the front, rear, left and right of the loading platform 2 of the truck 1,
4 for maintaining the horizontal state of the loading platform 2 when the vehicle is stopped
Book outriggers 9, 9, ... Are provided. The outriggers 9, 9 ... Are contracted and stored when the truck 1 is running, and are extended and grounded when the boom crane 3 and the balancer unit 5 are operating.

The balancer unit 5 has a first arm 10 which is rotatable horizontally with respect to the boom 4 about a rotation shaft 13 and a rotation shaft 14 with respect to the lower surface of the tip of the first arm 10. The second which can be turned horizontally
It comprises an arm 11 and a hook 12 vertically extending from one end of the second arm 11. An air balance mechanism (not shown) is built in the second arm 11 so that the air pressure can be adjusted to balance the load when a predetermined load acts on the hook 12. . Since the air balance mechanism is known,
The details are omitted. The first and second arms 10 and 11 are positioned above the boom 4 in the retracted state, as shown by the chain line in FIG.

The boom 4 is provided with a regulating means 15 for positioning and fixing the first and second arms 10 and 11 in the retracted state. The regulating means 15 is shown in FIG.
Further, as shown in FIG. 4, it comprises a pair of arm members 17, 17 pivotally supported by a bracket 16 fixed to the middle portion of the boom 4. The arm members 17 and 17 are attached to the bracket 16 by the bolt 1
Support parts 17a, 17a pivotally supported by 8 and the support part 1
The first and second arms 10, 7a, 17a on the tip side,
It is composed of sandwiching portions 17b, 17b for sandwiching the side surface of 11 and the first and second sandwiching portions 17b, 17b are provided on the inner surface thereof.
Elastic bodies 19, 19 made of rubber or the like are attached to surely hold the arms 10, 11. The arm members 17 and 17 are positioned and fixed by sandwiching the side surfaces of the first and second arms 10 and 11 in the retracted state in a posture orthogonal to the boom 4 (that is, the state shown by the solid line in FIG. 3), In the posture parallel to the boom 4 (that is, in the state shown by the chain line in FIG. 3), the arms are separated from the first and second arms 10 and 11 to be in the deregulated state, but both postures are supported by the arm members 17 and 17. The lock pin 20 having a built-in spring attached to the end of the portion 17a is retained by selectively engaging with the insertion holes 21 and 22 formed in the bracket 16.

Next, the installation work of the concrete block W by the concrete secondary product installation device configured as described above will be described.

At the construction site, the concrete block W is lifted up by the boom crane 3 together with the pallet P, loaded on the loading platform 2 of the truck 1, and moved to the block installation site. At this time, the balancer unit 5 is in the retracted state, and the first and second arms 10 and 11 are restricted by the restricting means 15
As a result, the swinging of the boom 4 is restricted. The outriggers 9 and 9 are concrete blocks W.
Is placed in the grounded state when it is loaded and in the stored state when it is moved.

At the block installation site, the first and second arms 10 and 11 of the balancer unit 5 are projected and the concrete jigs W from the pallet P are hung by the hanging jigs 23 hung from the hooks 12. Take out and install it in the installation position.
At this time, since the concrete block W is hung by the balancer unit 5 in a state of being close to zero gravity, the concrete block W is easily positioned with a very small force.
Further, when the block installation site is a sloping ground, the outriggers 9, 9 ... Are grounded to bring the loading platform 2 into a horizontal state.

When the concrete blocks W are installed one by one as described above and the block installation within the work range of the balancer unit 5 (that is, the range indicated by the symbol X in FIG. 2) is completed, the truck 1 is moved. Then, the block is installed in the next work range, and is repeated until the concrete block W on the pallet P is exhausted.

As described above, according to the present embodiment, the concrete blocks W are loaded together with the pallets P on the loading platform 2 and transported to the installation site. There is no need to go to, and work efficiency is very good. Further, since the concrete block W can be handled by the balancer unit 5 in a state close to zero gravity, the concrete block W can be easily positioned with a small force, and the worker's back is not hurt. Moreover, if the balancer unit 5 is stored,
The boom crane 3 can be used and the traveling of the truck 1 is not hindered.

Embodiment 2 FIG. 5 shows a main part of a balancer unit in a concrete secondary product installation apparatus according to Embodiment 2 of the present invention. The present embodiment corresponds to the inventions of claims 1, 2, 3 and 5.

In the case of the present embodiment, the balancer unit 5 has first and second braking means 24, 25 for restricting the turning of the first and second arms 10, 11 instead of the restricting means in the first embodiment. It is attached.

The first and second braking means 24, 25
Have substantially the same structure, and are discs 26 and 27 that rotate together with the rotation shaft 13 of the first arm 10 and the rotation shaft 14 of the second arm 11, respectively.
Brake shoes 28, 28 and 29, 29 which are pressed against each other from above and below when turning is restricted, and a hydraulic cylinder 30 which acts as an actuator for advancing and retracting these brake shoes 28, 28 and 29, 29, respectively. , 30, and 31, 31.

The booster 32 supplies and discharges the pressure oil to and from the hydraulic cylinders 30 and 31. The booster 32 includes the hydraulic cylinders 30,
A small-capacity oil chamber 3 that communicates with 31 via an oil supply / drain pipe 33.
4, a large volume air chamber 36 partitioned by the oil chamber 34 and the small piston 35, and a large piston 38 that reciprocates in the air chamber 36 and is connected to the small piston 35 via a connecting rod 37. , A spring 39 that backs up the large piston 38. Reference numeral 40 is an air pipe, 41 is an air switch, 42 is a switching valve, and 43 is an air source.

The braking means 24, 25 having the above-mentioned structure operate as follows.

When the air switch 41 is in the OFF state, the switching valve 42 is switched to the conduction direction, the air pressure supply to the air chamber 36 of the booster 32 is stopped, and the urging force of the spring 39 of the booster 32 is boosted. Oil chamber 34
Is supplied to the hydraulic cylinders 30 and 31, the brake shoes 28 and 29 are pressed against the disks 26 and 27, and the turning of the first and second arms 10 and 11 is restricted.

When the air switch 41 is in the ON state, the switching valve 42 is switched to the non-conducting direction to supply the air pressure to the air chamber 36 of the booster 32, and the spring 39 of the booster 32 is compressed to compress the hydraulic cylinder. Three
The pressure oils of 0 and 31 are released, the brake shoes 28 and 29 are separated from the disks 26 and 27, and the first and second arms 10,
Eleven turns are allowed.

In the present embodiment, if the booster 32 cannot be supplied with air pressure for some reason, the biasing force of the spring 39 supplies pressure oil to the hydraulic cylinders 30 and 31. It has a safety structure with braking.

In the second embodiment, when the first and second braking means 24 and 25 are operated during the installation work of the concrete secondary product, for example, even if the work site is a little sloping ground, 1 and second arm 10,1
1 does not turn carelessly, and work safety can be secured. Further, when the first and second arms 10 and 11 are stored and the brakes are applied,
Boom crane operation and truck travel will not be hindered.

The other structure, function and effect are the same as those of the first embodiment, and the description thereof will be omitted.

Embodiment 3 FIGS. 6 to 8 show a balancer unit mounting portion in a concrete secondary product installation apparatus according to Embodiment 3 of the present invention. In this embodiment, claims 1, 2, and 3 are described.
And 5 corresponds to the invention.

In the case of the present embodiment, the first arm 10 of the balancer unit 5 is supported on the upper surface of the boom 4 via the overhang storing means 44.

The projecting / storing means 44 includes a pair of boom side projections 45, which are provided on both sides of the boom 4 in the longitudinal direction.
45 and 46, 46 and the rotary shaft 13 of the first arm 10.
Is provided on the lower surface of a base plate 47 supporting the pivot pin 4 with respect to the boom side protrusions 45, 45 and 46, 46.
Balancer-side protrusions 50, 50 and 51, 51 pivotally supported via 8, 48 and 49, 49 and brackets 52, 52 protruding from the upper surface of the boom 4 A cylinder 54 in which a piston rod 54a is connected to balancer-side projections 50, 50 pivotally supported on one side and located on one side of the boom 4 via links 53, 53
And links 56, 56 for connecting the piston rod 54a to a support tool 55 protruding from the upper surface of the boom 4.
And is configured. Of the pivot pins 48 and 49, the pivot pin 49 is removable.

Overhang storing means 44 constructed as described above
Works as follows.

In the contracted state of the cylinder 54, FIG.
As shown in FIG. 7 and FIG. 7, the balancer unit 5 is in an extended state in which it is positioned above the boom 4, and in this state the concrete block W is carried by the balancer unit 5.

On the other hand, when the pivot pin 49 is pulled out and the cylinder 54 is extended, the balancer unit 5 is inverted and stored in the side of the boom 4, as shown in FIG. With such a storage posture, since the balancer unit 5 does not exist above the boom 4, it is not necessary to consider the restriction on the height limit.

The other structure, function and effect are similar to those of the second embodiment, and the explanation thereof is omitted.

Although the concrete block installation is described in the above embodiment, the concrete secondary product installation apparatus of the present invention is suitable for installation of the fence block for the exterior, the flat plate or the fume pipe for the civil engineering work. Is also applicable.

The invention of the present application is not limited to the configuration of each of the above-described embodiments, and it goes without saying that the design can be appropriately changed without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 is a side view showing a concrete secondary product installation device according to a first embodiment of the present invention.

FIG. 2 is a plan view of the concrete secondary product installation device according to the first embodiment of the present invention.

[Fig. 3] Fig. 3 is a side view showing the configuration of the regulation means in the concrete secondary product installation device according to the first embodiment of the present invention.

FIG. 4 is a plan view showing the configuration of the regulating means in the concrete secondary product installation device according to the first embodiment of the present invention.

FIG. 5 is a schematic configuration diagram showing a main part of a balancer unit (that is, a configuration of braking means) in the concrete secondary product installation device according to the second embodiment of the present invention.

FIG. 6 is a side view showing a configuration of a balancer support portion in the concrete secondary product installation device according to the third embodiment of the present invention.

FIG. 7 is a front view of the balancer support portion in the concrete secondary product installation device according to the third embodiment of the present invention.

FIG. 8 is a front view showing a balancer retracted state in the concrete secondary product installation device according to the third embodiment of the present invention.

[Explanation of symbols]

1 is a truck, 2 is a carrier, 3 is a supporting means (boom crane), 4 is a boom, 5 is a balancer unit, 9 is an outrigger, 10 is a first arm, 11 is a second arm, 12 is a hook, 13 and 14 are A rotating shaft, 15 is a regulating means, 24 is a first braking means, 25 is a second braking means, and W is a concrete block.

Claims (5)

[Claims] 1. A support means supported on a bed of a truck, a first arm rotatable horizontally with respect to the support means, a second arm rotatable horizontally with respect to the first arm, and the second arm.
A concrete secondary product installation device comprising: a balancer unit including a hook that is vertically movable from one end of an arm. 2. The concrete secondary product installation device according to claim 1, wherein the supporting means is a boom of a boom crane. 3. The concrete secondary product installation device according to claim 1 or 2, wherein the truck is provided with an outrigger for maintaining a horizontal state of the loading platform. 4. The concrete secondary product installation device according to claim 1, further comprising a restriction means for positioning and fixing the first and second arms in a retracted state. 5. The concrete secondary product installation device according to claim 1, further comprising first and second brake means for restricting turning of the first and second arms, respectively. .