JPH07139171A - System of automatically compacting concrete - Google Patents

Abstract

PURPOSE:To carry out a structure having high quality by automating the placing and compaction of concrete extending over a specified depth on the basis of the detection of the placing height of concrete. CONSTITUTION:Vibrators 9 for compacting concrete are held extending over a first holder 10b on the fixed base 4 side releasing holding when a movable base 6 is lifted and a second holder 11b releasing holding when the movable base 6 is lowered. The vibrators 9 are driven for a fixed time on the basis of information from a height detector 12 detecting the height of the placing surface of concrete, and the movable base 6 is lifted and lowered by a set height section. The vibrators 9 and the movable base 6 are remotely controlled by manual operation by a switchboard 23 being near at hand prior to such automatic control as required. Accordingly, proper vibrational states such as the driving stoppage of the vibrators, the adjustment of an excitation time, etc., corresponding to various statuses can be acquired at all times.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic concrete compaction system.

[0002]

2. Description of the Related Art For example, when constructing a pillar, it is extremely important to compactly consolidate concrete cast in a formwork.
Vibrators of the order of a book are arranged in the form at a predetermined interval and are vibrated for a predetermined time to compact the concrete. Also, when pulling out the vibrator according to the amount of concrete placed, it is also important not to leave holes in the concrete due to the vibrator, for this reason pay close attention while vibrating the vibrator, It is necessary to pull out the vibrator gradually.

Further, since it is necessary to avoid the vibration of the reinforcing bar in the formwork as much as possible, when the vibrator approaches the reinforcing bar, the driving of the vibrator is stopped immediately or when the viscosity of concrete is high. Since the vibration propagation range of the vibrator changes so as to be small, in such a case, make an adjustment to lengthen the vibration time of the vibrator, and take into consideration the other concrete placing conditions to ensure that the appropriate vibration is maintained. It is necessary to control the vibrator to obtain the state.

[0004]

However, conventionally, for example, in the case of constructing a 1000 mm square column and arranging five vibrators as shown in FIG.
When pouring high-strength concrete of about g and driving the vibrator, each one vibrator is managed by two operators, and in addition, the concrete pouring chute is managed by one operator, and The current situation is that one conductor is added and a total of 12 people are constructing one pillar, but the large number of operators gather in a small space, so work efficiency was extremely poor.

Further, depending on the intuition of one conductor, the vibrator is driven or pulled up based on the visual detection of the pouring height of concrete by this conductor. In addition to the above problems, there was a problem in that the control of driving and lifting for a plurality of vibrators became non-uniform due to variations in the movements of a large number of operators, which could easily cause a difficulty in the construction quality of the structure.

The present invention provides an automatic compaction system for concrete in which a high-quality structure can be constructed by labor saving and low cost by automating the control of the vibrator, and moreover, the vibrator can be manually controlled according to various situations. It is intended to be provided.

[0007]

SUMMARY OF THE INVENTION An automatic concrete compaction system according to the first aspect of the present invention, which has achieved the above object, comprises first means for detecting the height of a placing surface of concrete, and It is characterized in that it comprises a second means for driving the vibrator for a predetermined time and raising the vibrator by a set height based on the information from the means.

In the automatic concrete compaction system according to the second aspect of the present invention, the movable base is provided so as to be able to move up and down with respect to the fixed base, and the plurality of first pinching devices for releasing the pinching of the vibrator when the movable base is raised are fixed. A second holding device, which is provided on the base and which releases the holding of the vibrator when the movable base is lowered, is provided on the movable base relative to the first holding device and holds the vibrator across the first and second holding devices. While letting
The movable base or the fixed base is provided with a first means for detecting the height of the placing surface of the concrete, and based on the information from the first means, the vibrator is driven for a predetermined time and the movable base is set as described above. It is characterized in that it is provided with a second means for moving up and down by the height.

The third invention is characterized in that the automatic concrete compaction system according to the first and second inventions is provided with a third means for manually and remotely controlling the vibrator in preference to the second means. There is.

The automatic concrete compaction system according to the fourth aspect of the present invention comprises a first step for placing concrete, a second step for detecting the level of placing concrete, and the level detection in compacting concrete. Based on that, the third step of driving the vibrator for a predetermined time based on the fourth step, the fourth step of raising the vibrator to a predetermined level while vibrating the vibrator, and the fifth step of stopping the vibrator are sequentially and automatically performed. There are features.

[0011]

According to the first aspect of the invention, based on the detection of the pouring height of the concrete, the driving of the vibrator for a predetermined time and the control of the rising of the vibrator by the set height, that is, the concrete of the concrete over the predetermined depth is controlled. Placement and concrete compaction are performed automatically.

According to the second invention, when the movable base is moved up and down, the first holding device releases the holding of the vibrator when the movable base is lifted, and the vibrator is lifted by the rising stroke of the movable base. At the time of descending, the second nipping device releases the nipping of the vibrator, so that only the movable base descends while leaving the vibrator in the above-mentioned lifting position.

That is, when the concrete pouring over the set height is detected by the first means, a plurality of vibrators are automatically driven and moved for a predetermined time based on the information from the first means. It can be automatically lifted all at once for the lifting stroke of the base.

Thus, even if the moving base has a short lifting stroke, after that, the vibrators are repeatedly lifted up to a predetermined height all at once by the above-mentioned automatic control, so that concrete is poured to a predetermined depth and a plurality of concrete pieces are piled up. Uniform vibratory compaction of concrete is automatically achieved.

According to the third invention, in addition to the automatic control in the first and second inventions, the vibrator can be manually and remotely operated in preference to the automatic control. That is, if necessary, by taking the form of manual remote control with priority over automatic control, lifting and lowering of the movable base and driving of the vibrator can be remotely controlled manually according to various situations.

According to the fourth aspect of the present invention, placing concrete, detecting the level of placing concrete, and driving the vibrator for a predetermined time based on the level detection,
Pulling up the vibrator while vibrating it to a predetermined level and stopping driving the vibrator are sequentially and automatically performed to construct the structure.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an automatic concrete compaction system for concrete, which is used, for example, in the construction of columns, in which 1 is a device for simultaneously pulling up a chute and a vibrator.
As shown in FIG. 2, the pillar formwork 2 is installed on the floor slab formwork 3 around the pillar formwork 2 in a state corresponding to the upper part of the concrete casting part.

Specifically, a movable base 6 is provided on a fixed base 4 installed on the floor slab form 3 so that the movable base 6 can be moved up and down through a driving means 5, and the movable base 6 is raised. Sometimes the chute 8 of the concrete placing means 7
Of the first chute holding device (hereinafter, simply referred to as the first holding device) 10a for releasing the holding of the vibrator, and the first holding device 10b for a plurality of vibrators for releasing the holding of the vibrator 9 when the movable base 6 is raised. And are provided on the fixed base 4, respectively.

A second chute holding device (hereinafter, simply referred to as a second holding device) 11a for releasing the holding of the chute 8 when the movable base 6 descends, and the movable base 6 as well.
And a plurality of second clamping devices 11b for the vibrator that release the clamping of the vibrator 9 when descending, are provided on the movable base 6 relative to the first clamping devices 10a and 10b, respectively. And the second clamping device 10
The chute 8 is clamped and held over a and 11a, and the rod-shaped vibrator 9 for compacting concrete is retained over the remaining first and second clamping devices 10b and 11b.
The movable base 6 is provided with a height detector (first means) 12 for sandwiching and holding, and detecting the height of the concrete placing surface by, for example, ultrasonic waves. The height detector 12 may be provided on the fixed base 4 as well.

The fixed base 4 has four cylindrical legs 14 each having a screw type level adjusting tool 13 on the lower side.
Are connected to each other by a horizontal frame 15 extending over the upper side thereof, and the movable base 6 has legs 16 ... Which are slidably fitted in the cylindrical legs 14 of the fixed base 4 above. The driving means 5 is composed of, for example, a hydraulic cylinder and is connected to the lateral frame 17 extending from one side to the other, and is housed in each leg 14 of the fixed base 4.

Further, as shown in FIG. 2, two first frames 18a are slidably installed across the horizontal frames 17, 17 of the movable base 6, and two second frames are provided over the first frames 18a, 18a. 18b
Is slidably installed in a direction orthogonal to one of the first frames 18a, and the second frames 18b, 18
A third frame 18c is slidably installed over b.

The second nipping device 11b for the vibrator is slidably and fixedly provided on the left and right side portions of the first frame 18a and the central portion of the third frame 18c, and for the chute. The second holding device 11a is slidably fixed to one end of one of the first frames 18a. The first and second clamping devices 10a, 10b ... Are similarly provided to the fixed base 4, and the installation positions of the concrete placing means 7 and the vibrator 9 ... The position can be changed and finely adjusted according to the size.

Next, referring to FIG. 3, the concrete structure of the concrete placing means 7 will be described. The concrete placing means 7 includes a concrete pressure feeding means (not shown), and a flexible tube 29 connected to the pressure feeding means. Concrete supply tool 30 attached to the tip of this tube 29
And a chute 8 for concrete pouring having an opening at the lower end as a concrete pouring port a.

The chute 8 is attached to a cylindrical elastic member 31 (see FIG. 1) longer than the casting height of concrete.
Vertical slit b that is almost closed in the free state
On the other hand, the concrete supply tool 30 has a cylindrical member 32 slidably fitted on the chute 8 and having a small diameter cylindrical portion 32a on the lower side which functions to close the slit b. The large-diameter tubular portion 32 of the tubular member 32
b, and a nozzle 33 that extends through the slit b and is inserted into the chute 8 and, as shown in FIG. It is attached to a bracket 34 that can be slid and fixed with respect to one frame 18a.

According to this structure, the height position of the concrete pouring port a can be changed by changing the position of the chute 8 while the nozzle 33 of the concrete supply tool 30 is fixed at a fixed position. Since it is possible to handle the thick and heavy concrete flexible tube 29 for pouring, it is possible to pour concrete into the mold 2 by free fall without scattering it.

The first and second holding devices 10a and 10b for holding the chute 8 have the same structure, and are configured as follows, for example. That is, as shown in FIG. 4, the bracket 34, which can be slid and fixed to the first frame 18a of each of the bases 4 and 6, is rotated around the horizontal axis 35 so as to face the slit b of the chute 8. The arm 36 is pivotally attached by means of, and at the tip of this arm 36, there is provided a serrated locking member 37 that locks on the inner surface of the chute 8 at a position above the horizontal shaft 35 through the slit b. In addition, a pressure receiving member 38 that holds the chute 8 with the locking member 37 is provided on the horizontal frame 18. It is desirable that the locked surface portion of the chute 8 with respect to the locking member 37 has a sawtooth shape like the locking member 37.

According to the above construction, when the movable base 6 is pulled up, as shown by the solid line c in the figure, the arm 36 of the second holding device 10b on the movable base 6 side is acted on by the strut. Since the chute 8 is sandwiched by the locking member 37 at the tip of the arm 36 and the pressure receiving member 38,
The chute 8 will be lifted together with the movable base 6. On the other hand, the first holding device 10 on the fixed base 4 side
In a, the arm 36 is
Swings in the direction indicated by the solid line d to function to allow the chute 8 to be pulled up, and the clamping of the chute 8 by the locking member 37 and the pressure receiving member 38 is automatically released.

That is, when the first holding device 10a releases the holding of the chute 8 when the movable base 6 is raised, the chute 8 is pulled up by the rising stroke of the movable base 6.

Next, when the movable base 6 is lowered as indicated by the broken line e, this time, the arm 36 on the side of the first holding device 10a is stretched by the engaging member 37 and the pressure receiving member 38 at the tip of the arm 36. The chute 8 is clamped by and. On the other hand, in the second holding device 10b on the movable base 6 side, the arm 36 functions so as to swing in the direction indicated by the broken line f, and allows the relative movement of the chute 8.

That is, when the second holding device 10b releases the holding of the chute 8 when the movable base 6 is lowered, only the movable base 6 is lowered while the position of the chute 8 is fixed. Therefore, by repeatedly raising and lowering the movable base 6, it is possible to intermittently pull up the chute 8 by the raising / lowering stroke of the movable base 6.

The first and second holding devices 11a and 11b for holding the vibrator 9 have the same structure, and are configured as follows, for example. That is, as shown in FIG. 5, a support member 45 is provided so as to be slidable and fixable on the first frame 18a of each of the bases 4 and 6, and a pair of toothed groove groove pulleys 40 for holding the vibrator 9 are provided. One of the pulleys 40 is provided so as to be rollable with respect to the support member 45, and the other pulley 40 is provided on the tip end side of the swing arm 42, and a lever 43 connected to the arm 42 can be inserted and removed. The pulley 40 is connected to the bracket 46 by a stopper pin 44, and further, the one pulley 40 is provided with a ratchet mechanism 41 that can roll only in the direction in which the pulling of the vibrator 9 is allowed.

The sandwiching devices 11a and 11b provided in the central portion of the third frame 18c have the same structure, and only in that the support member 45 is slidably and fixedly provided with respect to the third frame 18c. Only different.

According to this structure, the stopper pin 44
By pulling out, the holding of the vibrator 9 by the pair of pulleys 40 is mechanically released. Then, in a state where the vibrator 9 is held by the pair of pulleys 40, as shown by a solid line h in FIG.
When the second holding device 11 on the movable base 6 side is pulled up.
Since the one pulley 40 of b is in the non-rotatable state, the vibrator 9 is pulled up integrally with the movable base 6 while being held by the pair of pulleys 40.

On the other hand, the first holding device 11 on the fixed base 4 side
In a, as the vibrator 9 is pulled up, one of the pulleys 40 rolls through the ratchet mechanism 41 and together with the other pulley 40 in the direction indicated by the solid line i. The holding of the vibrator 9 by the is automatically released.

That is, when the first holding device 11a releases the holding of the vibrator 9 when the movable base 6 is raised,
The vibrator 9 is pulled up by the rising stroke of the movable base 6.

Then, when the movable base 6 is lowered as indicated by the broken line j, one of the pulleys 40 on the side of the first holding device 11a is in a state in which it cannot roll due to the function of the ratchet mechanism 41. 9 is a pair of pulleys 40
Will be pinched by.

On the other hand, the second holding device 11 on the movable base 6 side
In b, the pair of pulleys 40 can roll in the direction indicated by the solid line m, and when the movable base 6 descends, the second holding device 11b substantially releases the holding of the vibrator 9, so that the vibrator 9 is moved. Only the movable base 6 is lowered with the position fixed.

Therefore, by repeating the raising and lowering of the movable base 6, the vibrator 9 can be intermittently pulled up by the raising and lowering stroke of the movable base 6 with a certain correlation with the chute 8. .

Returning to FIG. 1, 19 in the drawing is a pressure oil supply device for the drive means 5, 20 is a pressure oil supply control means, 2
Reference numeral 2 is an oscillating device that drives the vibrator 9, for example, a frequency converter, and 28 is a power source.

Reference numeral 21 is a control means (second means) for automatically controlling the elevation of the movable base 6 and the drive of the vibrator 9.
The control means 21 drives the vibrator 9 for a predetermined time and drives the movable base 6 by the set height based on the concrete placing information from the height detector 12 over the set height. It has a function of automatic control to raise and lower.

Reference numeral 23 is a hand switch panel provided with means (third means) 24 for manually remote-controlling the vibrator 9 and the movable base 6 in preference to the above-mentioned control means 21, which is automatically controlled by the control means 21. A mode changing switch 25 for manual control by the manual remote control means 24, a manual control section 26 for the driving means 5 of the movable base 6, and a manual control section 27 for selecting a plurality of vibrators 9 and individually driving them. ing.

An embodiment of the automatic compaction system for concrete according to the present invention has the above-mentioned structure, for example, a pillar 1
An example of constructing a pillar in which the hitting is divided into four layers and concrete pouring and compacting are sequentially performed will be described based on an explanatory view of the concrete pouring procedure shown in FIG. 6 and a driving flow shown in FIG. 7.

In constructing this pillar, first, when the concrete placing surfaces supplied from the chute 8 of the concrete placing means 7 reach the levels of H1, H2, H3 and H4, respectively, the height is detected. The setting is performed so that the concrete pouring information over the set height is emitted from the container 12.

This level difference is, for example, the amount of lifting stroke of the movable base 6, and the high-strength concrete is to be placed.
As specified in S5, the height of the concrete pouring port a is set so that the free fall height of the concrete is within 1 m.

In this way, the concrete placing surface is H
Placing the first layer of concrete until reaching 1 (Sa
1) is performed, and the vibrator 9 is selectively driven (Sa2) in the manual control mode by the manual remote control means 24 to level the concrete upper surface.

Here, the mode is switched to the automatic control mode, and when the placement of concrete reaching H1 is detected by the height detector 12 (Sa3), a plurality of vibrators 9 are driven simultaneously ( Sa4), and the movable base 6 rises (Sa5) after waiting for a predetermined concrete compaction time.

With the rise of the movable base 6, the vibrating vibrator 9 is kept vibrating, and the chute 8 and the plurality of vibrators 9 maintain a constant correlation with each other. Be raised. When the pulling is completed, for example, 10c
The vibrator 9 is made to plunge into concrete for about m.

After that, the movable base 6 is lowered (Sa6) while the chute 8 and the vibrator 9 are left, and the driving of the vibrator 9 is stopped (Sa7). Complete installation and compaction.

That is, the first step of concrete pouring (Sa1), the second step of concrete pouring level detection (Sa3), and a plurality of vibrators 9 are simultaneously driven over a predetermined range based on the level detection. While vibrating the third step (Sa4) and the vibrator 9,
With the vibrator 9 and the chute 8 maintained in a certain correlation, the fourth step of raising (Sa5) by the ascending / descending stroke of the movable base is sequentially performed to place and tighten the concrete of the first layer. The consolidation is complete.

After that, every time the second, third and fourth layers of concrete are placed, the first to the third layers are removed except for the leveling of the concrete upper surface in the manual control mode described above. By repeating the four steps in sequence, one concrete pillar is constructed. It is also possible to automatically control the leveling of the concrete upper surface in the manual control mode described above.

According to the automatic concrete compaction system having the above-mentioned structure, the chute 8 and the plurality of vibrators 9 are automatically pulled up while maintaining a constant correlation with each other, and as necessary. Since the driving means 5 and the vibrator 9 can be preferentially manually controlled,
It is possible to stably build a structure with high construction quality (pillars in this example), and moreover, since the vibrators 9 and the chutes 8 are automatically controlled, several operators are required when the system is initially set. Although it is necessary, the operator required for the control thereafter is simply one person who manages the manual remote control means 24, and a great labor saving is achieved.

By the way, for example, when the supply of concrete becomes intermittent at the start of the cycle of the second layer, if the above-mentioned automatic control mode is adopted, the driving of the vibrator 9 is significantly delayed and the There is a concern that the quality of the product will be difficult.

In such a case, the manual control mode (S
1) is selected, for example, every time when concrete is intermittently placed, the same work as the concrete compaction work by the above-mentioned automatic control, that is, the driving of the vibrator 9 for a predetermined time and the intermittent concrete work are performed. By repeatedly performing the work of raising and lowering the movable base 6 with a stroke corresponding to the supply amount of, it is possible to construct a high-quality column in which concrete is appropriately compacted.

In addition, by taking the manual control mode,
For example, when the vibrator 9 approaches the rebar in the form, the driving of the vibrator 9 is stopped suddenly, the vibration time for each of the vibrators 9 is changed, and the lifting stroke of the chute 8 and the vibrator 9 is changed. Changes and the like can be performed remotely, that is, a high quality pillar can be constructed by taking a mode of manual control according to various situations.

If the supply of concrete returns to normal during the construction process, that is, in this embodiment, the supply is normalized when the fourth layer of concrete is placed. Is to switch to the automatic control mode (S2) and restart the automatic compaction of concrete.

When the drive stop information of the vibrator 9 based on the final Sd 7 is sensed and the pumping control means 47 for stopping the pumping of concrete from the concrete pump car is provided as shown in FIG. There is an advantage that the driving operator is unnecessary and it leads to labor saving.

In the above-mentioned embodiment, the fixed base 4 and the movable base 6 have the first and second clamping devices 10a and 10a.
b, 11a and 11b are provided, the chute 8 and a plurality of vibrators 9 are sandwiched and held between them, and the first to third means 12, 21 and 24 are provided as an automatic compaction system for concrete. , But
This is a suitable example for fully automatically constructing a structure with high construction quality, and can be implemented by the system having the configuration described below.

For example, based on the first means for detecting the height of the placing surface of the concrete and the information from this first means, the vibrator is driven for a predetermined time and the vibrator is raised by the set height. A system that is equipped with a second means for automatically detecting the height of concrete placed, automatically driving the vibrator for a predetermined time based on this, and controlling the rise of the vibrator by the set height.

That is, it is a system in which the third means by manual remote control is not provided and only the above-mentioned first to fourth steps are carried out fully once only, whereby the first invention can be achieved. To be done.

Alternatively, while the third means for manually and remotely controlling the vibrator is provided in preference to the above-mentioned second means, the movable base is provided only for raising, and in addition to the above automatic control, This is a system for manually operating the vibrator by remote control in preference to the automatic control, whereby the second invention is achieved.

In the above various systems, it is not essential to equip the lifting device of the vibrator with a chute for placing concrete, and only the vibrator may be installed over the holding devices of both bases.
Alternatively, it is possible to use a vibrator pulling device in which the vibrator holding device is provided only on the movable base.

[0062]

As described above, according to the automatic concrete compaction system of the first invention, the vibrator is driven for a predetermined time and the vibrator for the set height is detected based on the detection of the concrete pouring height. Ascending control, that is, automatic pouring of concrete and compaction of concrete over a predetermined depth,
High quality structures can be constructed.

According to the concrete compaction system for concrete according to the second aspect of the present invention, the driving of a plurality of vibrators for a predetermined time and the lifting for the set height are sequentially performed based on the detection of the concrete placing over the set height. By repeating automatically, even if the lifting stroke of the movable base is short, compaction of concrete with a plurality of vibrators to a predetermined depth can be performed uniformly with good workability and high quality. In addition to labor saving and low cost construction of the structure of
The shortening of the lifting stroke of the movable base achieves a compact system.

According to the automatic compaction system for concrete of the third invention, the vibrator can be manually operated by remote control in preference to the above-mentioned automatic control according to the first and second inventions. The vibrator can be manually controlled so that an appropriate vibration state can always be obtained, such as stopping the driving of the vibrator or adjusting the oscillating time, and further quality improvement of the structure is achieved.

According to the automatic concrete compaction system of the fourth aspect of the present invention, concrete is placed, the level of placing concrete is detected, the vibrator is driven for a predetermined time based on the detected level, and the vibrator is vibrated. Is pulled up and the driving of the vibrator is stopped sequentially and automatically to build a high quality structure.

[Brief description of drawings]

FIG. 1 is an overall view of an automatic concrete compaction device.

FIG. 2 is a plan view of an auxiliary jig for placing concrete.

FIG. 3 is a perspective view of concrete placing means.

FIG. 4 is a detailed view of a pinching device that pinches a chute so as to be relatively movable.

FIG. 5 is a detailed view of a holding device that holds the vibrator so as to be relatively movable.

FIG. 6 is an explanatory view of a procedure for placing and compacting concrete.

FIG. 7 is a drive flow of a chute and a vibrator.

[Explanation of symbols]

4 ... Fixed base, 6 ... Movable base, 9 ... Vibrator, 10a, 10b ... 1st clamping device, 11a, 11b ...
2nd clamping device, 12 ... Height detector (1st means), 21
... control means (second means), 24 ... priority control means (third means).

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 13, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0029

[Correction method] Change

[Correction content]

Next, when the movable base 6 is lowered as shown by the broken line e, this time, the arm 36 on the side of the first holding device 10 a is pulled by the engaging member 37 and the pressure receiving member 38 at the tip of the arm 36. The chute 8 is clamped by and. On the other hand, in the second holding device 11a on the movable base 6 side, the arm 36 functions so as to swing in the direction indicated by the broken line f, and allows the relative movement of the chute 8.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

That is, when the movable base 6 is lowered, the second holding device 11a releases the holding of the chute 8 so that only the movable base 6 is lowered while the position of the chute 8 is fixed. Therefore, by repeatedly raising and lowering the movable base 6, it is possible to intermittently pull up the chute 8 by the raising / lowering stroke of the movable base 6.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction content]

The first and second clamping devices 10b and 11b that clamp the vibrator 9 have the same structure, and are configured as follows, for example. That is, as shown in FIG. 5, a support member 45 is provided so as to be slidable and fixable on the first frame 18a of each of the bases 4 and 6, and the support member 45 is provided with a pair of toothed recesses for holding the vibrator 9. Of the grooved pulley 40, the ratchet mechanism 4
1 is provided with a pulley 40 capable of rolling only in the direction in which the vibrator 9 can be pulled up, and the other pulley 40 is provided with a swing arm 42 supported by a bracket 46 provided on the support member 45. On the tip side of
It is rotatably installed in both forward and reverse directions. And
By swinging the swinging arm 42 by operating a lever 43 connected to the swinging arm 42, the pair of pulleys 40 described above is
Can be switched between a first state in which they are separated from each other (a state in which the vibrator 9 is attached and detached) and a second state in which the vibrator 9 can be held, and the bracket 46 is provided.
Stopper pin 4 that can be inserted / removed across the lever and lever 43
4, the second state can be maintained by inserting the stopper pin 44 with the vibrator 9 inserted between the pair of pulleys 40.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0033

[Correction method] Change

[Correction content]

According to such a configuration, the pair of pulleys 40
When the vibrator 9 is clamped by the movable base 6 as shown by the solid line h in FIG.
Since one pulley 40 of the second holding device 11b on the movable base 6 side is in a non-rotatable state, the vibrator 9 is pulled up integrally with the movable base 6 while being held by the pair of pulleys 40.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0034

[Correction method] Change

[Correction content]

On the other hand, the first holding device 1 on the fixed base 4 side
At 0b, with the lifting of the vibrator 9,
When one of the pulleys 40 rolls in the direction indicated by the solid line i through the ratchet mechanism 41 and together with the other pulley 40, the clamping of the vibrator 9 by the pair of pulleys 40 is substantially automatically released. .

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0035

[Correction method] Change

[Correction content]

That is, when the movable base 6 is raised, the first holding device 10b releases the holding of the vibrator 9, so that the vibrator 9 is pulled up by the rising stroke of the movable base 6.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction content]

Next, when the movable base 6 is lowered as indicated by the broken line j, one of the pulleys 40 on the first holding device 10b side is in a state in which it cannot roll due to the function of the ratchet mechanism 41. 9 is a pair of pulleys 4
It will be pinched by 0.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ta Tamura 2-8-1, Fujimidai, Nagareyama-shi, Chiba Verdomir Edogawadai 305 (72) Inventor Hideo Oyano 3-24-14-511 Minamirokugo, Ota-ku, Tokyo (72) Inventor Masato Okura 7-7-26-509 Yatsu, Narashino City, Chiba Prefecture

Claims (4)

[Claims] 1. A first means for detecting the height of a placing surface of concrete, and based on information from the first means, drive the vibrator for a predetermined time and raise the vibrator by a set height. An automatic concrete compaction system consisting of a second means for 2. A movable base is provided so as to be able to move up and down with respect to the fixed base, and a plurality of first holding devices for releasing the holding of the vibrator when the movable base is raised are provided on the fixed base, and the vibrator is lowered when the movable base is lowered. The second clamping device for releasing the clamping is provided on the movable base relative to the first clamping device, and the vibrator is clamped across the first and second clamping devices, while the height of the concrete placing surface is increased. Second means for detecting is provided on the movable base or the fixed base, and based on the information from the first means, the vibrator is driven for a predetermined time and the movable base is moved up and down by the set height. An automatic compaction system for concrete, characterized by comprising: 3. The automatic concrete compaction system according to claim 1, further comprising third means for manually and remotely controlling the vibrator, prior to the second means. 4. In compacting concrete, a first step of placing concrete, a second step of detecting the level of placing concrete, and a third step of driving the vibrator for a predetermined time based on the level detection. Process of
An automatic concrete compaction system characterized by sequentially and automatically performing a fourth step of raising a vibrator to a predetermined level while vibrating the vibrator and a fifth step of stopping the vibrator.