JP7304794B2 - Joint cutting plate insertion device - Google Patents

Description

The present invention relates to a jointing plate inserting device for inserting a jointing plate into concrete.

BACKGROUND ART In embankment construction such as dams and embankments made of concrete, it is necessary to perform a compaction work to compact the concrete after it is cast until it hardens. In parallel with this compaction work, it is necessary to prevent the occurrence of adverse effects caused by the stress that occurs as the concrete expands and contracts. For this reason, joint cutting work is often performed to form joints (joints) by inserting a plurality of joint cutting plates into predetermined positions of concrete before hardening.

Examples of such a device having a function of performing joint cutting on concrete include a vibration joint cutting machine disclosed in Patent Document 1 and a joint cutting machine disclosed in Patent Document 2 (hereinafter, these are referred to as joint cutting plates insertion devices) are known. The joint cutting plate insertion device disclosed in Patent Document 1 and Patent Document 2 includes a base machine that can run on placed concrete and a vibrator attached to the tip side of the arm of the base machine. , and a lamellar blade attached to the lower end of the vibrator. A joint cutting operator first engages the folded portion of a joint material (hereinafter referred to as a joint cutting plate) having a folded portion formed to be folded back at the tip with the tip of the blade. In this state, when the blade is vibrated by a vibrator and the arm is operated, the vibrated blade is inserted (press-fitted) into the concrete together with the joint cutting plate. Thereafter, the arm is operated in a pulling direction to pull the blade out of the concrete while leaving only the joint cutting plate in the concrete, thereby forming a joint in the concrete. In this way, the joint cutting plate insertion devices disclosed in Patent Document 1 and Patent Document 2 insert the blade into the concrete while vibrating the placed concrete. By vibrating the surrounding concrete, it is intended to facilitate the insertion of the joint cutting plate into the concrete.

JP-A-09-203031 JP-A-61-10607

However, in the joint cutting plate inserting devices disclosed in Patent Document 1 and Patent Document 2, the concrete is directly vibrated by a thin plate-like blade, so that the concrete is insufficiently fluidized. As a result, it may be difficult to insert the joint cutting plate into the concrete. As a result, the efficiency of the joint cutting work may be lowered, and a device for this is required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a jointing plate inserting device capable of efficiently inserting a jointing plate into concrete.

According to one aspect of the present invention, there is provided a joint cutting plate inserting device for inserting a joint cutting plate into concrete while vibrating the placed concrete. This joint cutting plate inserting device includes a base machine having a traveling body capable of traveling on concrete, a revolving body rotatably supported on the upper part of the traveling body, and an arm swingably supported by the revolving body. and an insertion unit. The insertion unit has a plurality of vibrating rods arranged in a row and an inserting portion arranged parallel to the plurality of vibrating rods and engaged with the folded portion on one end side of the joint cutting plate. In this insertion unit, the vibrating rod and the insertion portion are inserted into the concrete by swinging the arm portion.

According to one aspect of the present invention, the joint cutting plate inserting device includes a plurality of vibrating rods arranged in a row and an inserting device arranged parallel to the plurality of vibrating rods to engage with a folded portion on one end side of the joint cutting plate. a plurality of vibrating rods and the inserts are inserted into the concrete by swinging the arms. That is, not only the insertion portion for inserting the joint cutting plate but also the plurality of vibration rods themselves are inserted into the concrete. As a result, the concrete can be sufficiently fluidized, and the joint cutting plate can be easily inserted into the concrete.

In this way, it is possible to provide a joint cutting plate inserting device capable of efficiently inserting a joint cutting plate into concrete.

1 is a diagram for explaining a schematic configuration of a joint cutting plate inserting device according to an embodiment of the present invention; FIG. Fig. 3 is an enlarged view of a main part including an insertion unit of the joint cutting plate insertion device; FIG. 3 is a front view of the insertion unit viewed from the direction of arrow A shown in FIG. 2; It is the figure which showed the state from which the joint cutting part was removed from the said insertion unit. It is a conceptual diagram for demonstrating operation|movement of the said joint cutting board insertion apparatus. It is a schematic block diagram for demonstrating the modification of the said joint cutting board insertion apparatus. FIG. 7 is a diagram for explaining an arrangement position of a stocker of the joint cutting plate inserting device shown in FIG. 6;

An embodiment of a joint cutting plate inserting device according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram showing a schematic configuration of a jointing plate inserting device 1 according to an embodiment of the present invention, and FIG. 2 is an enlarged view including a main part of the jointing plate inserting device 1. As shown in FIG. In this embodiment, it is assumed that the joint cutting plate inserting device 1 is used when constructing a bank body of a dam.

The joint cutting plate inserting device 1 has a function of forming joints (joints) in placed concrete C (hereinafter referred to as placed concrete C). The placement concrete C to be jointed is, for example, a super hard kneaded material having a low slump value. The cast concrete C has a hardness that allows the joint cutting plate insertion device 1 to run on the surface of the cast concrete C during joint cutting.

The joint cutting plate inserting device 1 is a device for inserting a joint cutting plate M into the concrete C while applying vibration to the concrete C to be placed.

As shown in FIGS. 1 and 2, in this embodiment, the jointing plate inserting device 1 includes a base machine 10, an arm portion 20, an insertion unit 50 having a vibrating portion 30 and a jointing portion 40, and a rotary support. It includes a portion 60 , a rotation angle detection portion 70 (see FIGS. 3 and 4 to be described later), and a fall prevention portion 80 . The joint plate M is formed in a generally rectangular shape and is made of, for example, a thin zinc steel plate. A folded portion M1 is formed on one end side (front end side in the insertion direction) of the joint cutting plate M, for example, by folding back to have a J-shaped cross section. Further, the joint cutting plate M is inserted into the concrete casting C so as to stand vertically in the concrete casting C that has a substantially horizontal surface and is placed in a plane. A plurality of joint cutting plates M are required for joint cutting, and in this embodiment, it is assumed that a plurality of joint cutting plates M are loaded at a loading location provided outside the casting area of the concrete C. do.

The base machine 10 has a traveling body 11 capable of traveling on the placed concrete C, a revolving body 12 and a control room 13 .

The traveling body 11 has a carriage 11a which is a support base for the entire apparatus, and a pair of left and right crawlers 11b, 11b mounted on the left and right sides of the carriage 11a. The truck 11a is equipped with a travel drive source and a turning drive source such as a motor (not shown). When the traveling drive source operates, the crawler 11b rotates and the traveling body 11 travels. The traveling body 11 can travel in the longitudinal direction of the crawler 11b. Further, the direction of the base machine 10 can be changed by adjusting the number of revolutions and the direction of rotation of the pair of left and right crawlers 11b, 11b.

The revolving body 12 is supported on the upper part of the traveling body 11 (specifically, the upper part of the carriage 11a) so as to be able to revolve about a vertical axis. By operating the turning drive source mounted on the truck 11a, the turning body 12 turns around the vertical axis on the truck 11a. In this embodiment, a gap is provided between the traveling body 11 and the revolving body 12 . Specifically, the revolving body 12 is connected to a revolving shaft portion 11c projecting from the upper surface 11a1 of the carriage 11a of the traveling body 11 via a connecting portion 12b projecting from the bottom surface 12a. The gap is provided between the upper surface 11 a 1 of the carriage 11 a of the traveling body 11 and the bottom surface 12 a of the revolving body 12 .

The cockpit 13 is equipped with various operating instruments for controlling the operation of the entire device. The operator operates the joint cutting plate inserting device 1 by operating the operating instrument in the cockpit 13 .

The arm portion 20 is supported by the revolving body 12 so as to be swingable about a horizontal axis. The arms 20 are composed of a boom 21 supported by the revolving body 12 so as to be swingable about a horizontal axis, an arm 22 supported at the tip of the boom 21 so as to be swingable about the horizontal axis, and a horizontal arm 22 at the tip of the arm 22 . It has a bracket 23 that is supported so as to be swingable about an axis, a first cylinder 24 , a second cylinder 25 and a third cylinder 26 .

The expansion and contraction of the first cylinder 24 causes the boom 21 to swing in the up and down direction, and the expansion and contraction of the second cylinder 25 causes the arm 22 to swing in the up and down direction and the third cylinder 26 to expand and contract. By driving, the bracket 23 swings in the up-and-down direction. Therefore, the bracket 23 can move up and down and rise and fall with respect to the revolving body 12 .

The insertion unit 50 has a vibrating section 30 having a function of applying vibration to the placed concrete C and a joint cutting section 40 having a function of forming joints in the placed concrete C. As shown in FIG. The insertion unit 50 is attached to the distal end of the arm portion 20 via a rotation support portion 60 . In this embodiment, the joint cutting part 40 is detachably attached to the vibrating part 30 . FIG. 3 is a front view of the insertion unit 50 viewed from the direction of arrow A shown in FIG. 2, and FIG.

The vibrating section 30 has a plurality of vibrating rods 31 arranged in a row and a vibrating rod supporting portion 32 supporting base ends (upper ends) of the plurality of vibrating rods 31, respectively.

The vibrating rod 31 consists of a bar-shaped vibrator extending in one direction and capable of vibrating. Although not particularly limited, the vibrating section 30 has four vibrating rods 31, and the four vibrating rods 31 are arranged in a row parallel to each other at intervals.

The vibrating rod support portion 32 has a sufficient length to space the four vibrating rods 31 from each other, and extends in a direction substantially orthogonal to the extending direction of the vibrating rods 31 . By operating the arm portion 20 so that the insertion unit 50 descends while the vibrating rods 31 are held in a substantially vertical posture, the plurality of vibrating rods 31 are vertically inserted into the placed concrete C. inserted in the upright position. In other words, the vibrating rod 31 is inserted into the placing concrete C by swinging the arm portion 20, and the direction of insertion of the vibrating rod 31 (in other words, the extending direction in the state where it is inserted into the placing concrete C) is vertical. direction is generally parallel.

The joint cutting portion 40 includes an insertion portion 41 for supporting the joint cutting plate M and for inserting the joint cutting plate M into the placing concrete C, and an attachment portion 42 for attaching the insertion portion 41 to the vibrating portion 30. have.

The insertion portion 41 is arranged parallel to the plurality of vibration rods 31 and engages with the folded portion M1 on the one end side of the joint cutting plate M. As shown in FIG. The insertion portion 41 is inserted into the placed concrete C by swinging of the arm portion 20 in the same manner as the vibrating rod 31 . The insertion portion 41 is formed in a substantially rectangular shape larger than the joint cutting plate M. As shown in FIG. In this embodiment, as shown in FIG. 3, the insertion portion 41 includes a frame-shaped frame 41a formed using a round steel or a flat steel, and a frame 41a extending vertically inside the frame 41a and spaced apart from each other. It consists of a plurality of reinforcing members 41b fixed with a space between them. As a result, the weight of the insertion portion 41 is reduced. Although not particularly limited, in this embodiment, the width of the insertion portion 41 is substantially matched with the width of the jointing plate M, and the height of the insertion portion 41 is sufficiently higher than the height of the jointing plate M.

The mounting portion 42 is provided between the upper end portion of the inserting portion 41 and the vibrating rod support portion 32 of the vibrating portion 30 and has a width approximately equal to the width of the inserting portion 41 . Although not particularly limited, the mounting portion 42 is, for example, a first flange portion 42a that is fastened to the upper end side portion of the insertion portion 41 by a fastening member such as a bolt, and is similarly fastened to the vibration rod support portion 32. It consists of a second flange portion 42b and a plurality of connecting members 42c connecting between the first flange portion 42a and the second flange portion 42b. Thereby, the insertion portion 41 is fixed to the vibrating portion 30 via the attachment portion 42 . Further, by releasing the fastening by the fastening member, the insertion portion 41 (that is, the joint cutting portion 40) is separated from the vibrating portion 30 as shown in FIG. In addition, in a state in which the insertion portion 41 is fixed to the vibrating portion 30 via the mounting portion 42 , the lower end of the insertion portion 41 (in other words, the tip in the insertion direction) protrudes below the tip of the vibrating rod 31 . .

The rotation support portion 60 supports the insertion unit 50 at the distal end of the arm portion 20 so as to be rotatable around the axis X parallel to the extending direction of the vibrating rod 31 . The rotation support portion 60 has a columnar shaft portion 61 extending along the axis X centered on the axis X parallel to the extension direction of the vibration rod 31 (that is, the insertion direction of the insertion unit 50), and the shaft portion 61 is rotatable. It has a cylindrical bearing 62 that supports it. The bearing 62 is fixed to the bracket 23, and when the bracket 23 swings, the bearing 62 and the shaft portion 61 also swing.

The shaft portion 61 is fixed to the center of the upper portion of the vibrating rod support portion 32 of the vibrating portion 30 in the extending direction (horizontal direction in FIG. 3). Therefore, the insertion unit 50 swings due to the swinging of the shaft portion 61 accompanying the swinging of the bracket 23 . Further, the rotation of the shaft portion 61 causes the insertion unit 50 to rotate around the shaft portion 61 with respect to the bracket 23 . In this embodiment, the shaft portion 61 and the insertion unit 50 are rotated by being driven by a motor (not shown).

In this embodiment, the rotation support portion 60 includes a first protrusion 63 that protrudes radially outward from the outer peripheral surface of the shaft portion 61 , and a first protrusion 63 that extends along the outer peripheral surface of the bearing 62 and is below the lower end surface of the bearing 62 (vibrating rod). It further includes a pair of second projections 64, 64 projecting toward the support portion 32). The pair of second projections 64 , 64 are provided at positions offset by 180° from each other in the circumferential direction of the bearing 62 , and can come into contact with the first projection 63 in the rotation direction of the shaft portion 61 . Rotation of the shaft portion 61 (that is, rotation of the insertion unit 50) is restricted while the first projection 63 is in contact with one of the pair of second projections 64, 64. As shown in FIG. That is, the pair of second protrusions 64, 64 limits the rotation range so that the insertion unit 50 does not rotate more than 180 degrees.

The rotation angle detection section 70 detects the rotation angle of the insertion unit 50 around the axis X described above. The rotation angle detection unit 70 is, for example, a linear encoder, and as shown in FIGS. and a detection head 70b. The detection head 70b is fixed to the bearing 62 via one of the second projections 64, for example. The detection head 70b measures the amount of movement of the scale 70a, and detects the rotation angle of the shaft portion 61, that is, the rotation angle of the insertion unit 50, based on the measured amount of movement. The rotation angle detector 70 has a reset function of resetting the rotation angle to, for example, 0 (zero) while the first projection 63 is in contact with the second projection 64 . Data indicating the rotation angle detected by the rotation angle detection unit 70 is output to a control unit (not shown) provided in the cockpit 13, and the result is displayed on a monitor (not shown) provided in the cockpit 13. is configured as

The collapse prevention portion 80 is protruded from the insertion portion 41 and supports the other end (in other words, the upper end) of the joint cutting plate M. As shown in FIG. The fall prevention portions 80 are provided at a plurality of locations (five locations in the figure) spaced apart in the width direction of the insertion portion 41 . The fall prevention portion 80 is provided, for example, on the surface of the frame 41a and the reinforcing member 41b of the insertion portion 41 opposite to the vibrating portion 30 at a height position corresponding to the other end (upper end) of the joint cutting plate M. ing. The anti-falling portion 80 is composed of, for example, an L-shaped hook bent in an L shape, and includes a horizontal portion 81 having a base end portion fixed to the insertion portion 41 and a tip end portion of the horizontal portion 81 toward one end side of the insertion portion 41 ( and a vertical portion 82 extending toward the lower end).

Next, a joint cutting operation using the joint cutting plate inserting device 1 will be described with reference to FIGS. 1 to 5. FIG. FIG. 5 is a conceptual diagram for explaining the operation of the jointing plate inserting device 1, and is a plan view of the jointing plate inserting device 1 as viewed from above. FIG. 5 shows an example of a state in which joints are formed in the placed concrete C placed two-dimensionally in the area surrounded by the forms F1 and F2. 5, the dotted line shows an example of the posture of the joint cutting plate inserting device 1. From the posture shown by the solid line, the revolving body 12 is swung, the arm portion 20 is swung, and the insertion unit 50 is rotated. It shows an upright posture. In the following description, it is assumed that a plurality of joint cutting plates M are inserted into the placed concrete C in a direction (orientation) parallel to the extending direction of the formwork F1 shown in FIG.

First, the worker transports the joint cutting plate M from a loading place provided outside the casting area of the concrete C to be placed, and mounts the joint cutting plate M on the insertion portion 41 . Specifically, for example, as shown in FIG. 2, the arm portion 20 is operated to raise the vibrating rod 31 and the insertion portion 41 substantially vertically. At this time, a gap is provided between the lower end of the insertion portion 41 and the surface of the placed concrete C. As shown in FIG. In this state, the joint cutting plate M conveyed by the operator is engaged with the lower end of the insertion portion 41 at the folded portion M1 at one end thereof and the other end at the vertical position of the fall prevention portion 80, as shown in FIG. It is inserted into the gap between the portion 82 and the insertion portion 41 . This completes the mounting of the joint cutting plate M.

After completing the mounting of the joint cutting plate M, first, the operator drives the motor for rotating the insertion unit 50 so that the insertion unit 50 is parallel to the formwork F1, as indicated by the solid line in FIG. . At this time, the operator visually checks the orientation of the insertion unit 50, and while confirming the detection result of the rotation angle of the insertion unit 50 by the rotation angle detection unit 70 provided in the cockpit 13 and displayed on the monitor, inserts the insertion unit. 50 is driven to rotate. Thereafter, the operator operates the arm portion 20 from the control room 13 to lower the insertion unit 50 and activate the vibrating portion 30 to vibrate the vibrating rod 31 . The arm portion 20 is operated so as to descend while the vibrating rod 31 is maintained in a generally vertical upright position. As a result, as shown in FIG. 1, the insertion portion 41 is inserted into the placed concrete C together with the vibrating vibrating rod 31 in a substantially vertical upright posture. At this time, the insertion portion 41 abuts on the folded portion M1 of the joint cutting plate M and pushes the joint cutting plate M downward. The joint cutting plate M is, for example, pushed in to such a depth that its upper end approximately coincides with the surface of the placed concrete C. As shown in FIG. During this pressing, since the vibrations from the plurality of vibration rods 31 are applied to the placed concrete C around the insertion portion 41 and the joint cutting plate M, the placement around the insertion portion 41 and the joint cutting plate M is suppressed. Concrete C is sufficiently fluidized. As a result, the joint cutting plate M is smoothly inserted into the placed concrete C. After that, although not shown, the arm 20 is operated so as to move upward while maintaining a vertically standing posture. As a result, the insertion portion 41 is pulled out of the placed concrete C together with the vibration rod 31 . At this time, the folded portion M1 of the joint cutting plate M acts as a resistance, and the joint cutting plate M is left in the placed concrete C as it is. As a result, a joint made of the joint cutting plate M is formed in the placed concrete C. As shown in FIG.

Here, air may be entrained in the placed concrete C when the concrete is placed, and voids may be formed in the placed concrete C. However, when a plurality of vibrating rods 31 are inserted into the placing concrete C in a vibrating state, the placing concrete C within the vibration transmission range centering on each vibrating rod 31 vibrates, and the air in the gap rises. removed from within the placed concrete C. As a result, the placed concrete C in the vicinity of the vibrating rod 31 is compacted. That is, the joint cutting plate inserting device 1 inserts the joint cutting plate into the casting concrete C while applying vibration to the casting concrete C, and during this insertion, the casting concrete C near the vibrating rod 31 is tightened. hardened.

Next, the operator mounts the joint cutting plate M for forming the next joint on the insertion portion 41 in the same manner as described above. The next joint cutting plate M is inserted into the cast concrete C in a direction (orientation) in which it is aligned in parallel with the previous joint cutting plate M, as indicated by the thick dotted line in FIG. Here, the insertion unit 50 is rotatably supported by the rotation support portion 60 at the tip of the arm portion 20 around the axis X parallel to the extending direction of the vibrating rod 31 . Therefore, as shown in FIG. 5, the angular position of the insertion unit 50 about the axis X with respect to the arm 20, that is, the orientation of the insertion unit 50 31) can be changed. As a result, the orientation of the insertion unit 50 with respect to the arm 20 is changed and the revolving body 12 is revolved to change the orientation of the arm 20 without changing the position of the traveling body 11, as indicated by the dotted line in FIG. As a result, the plurality of vibrating rods 31 and the insertion portions 41 are arranged in a direction (orientation) in which the joint cutting plate M is parallel to the previous joint cutting plate M and lined up in a row. In this state, as with the previous joint cutting plate M, the joint cutting plate M is inserted into the cast concrete C in an appropriate direction by operating the arm portion 20 . A plurality of joint cutting plates M are arranged in a row in the placed concrete C by sequentially repeating the above operation and by running the running body 11 if necessary. Then, with respect to the row of joints made up of a plurality of joint cutting plates M, the next row at a predetermined interval (for example, the row at a predetermined distance downward in the extending direction of the formwork F2 shown in FIG. 5) Joint cutting and compaction are performed. In addition, the insertion position of the joint cutting plate M is not limited to one line, and can be determined as appropriate.

The joint cutting plate inserting device 1 according to this embodiment includes a plurality of vibrating rods 31 arranged in a row and arranged in parallel with the plurality of vibrating rods 31 to engage with a folded portion M1 on one end side of the joint cutting plate M. In this insertion unit 50, a plurality of vibrating rods 31 and the insertion portions 41 are inserted into the placed concrete C by swinging the arm portion 20. As shown in FIG. That is, not only the insertion portion 41 for inserting the joint cutting plate M but also the plurality of vibration rods 31 themselves are inserted into the placed concrete C. As shown in FIG. Therefore, the placed concrete C in the vicinity of the insertion portion 41 and the joint cutting plate M can be sufficiently fluidized, and the joint cutting plate M can be easily inserted into the placed concrete C. As a result, it is possible to provide the joint cutting plate inserting device 1 capable of efficiently inserting the joint cutting plate M into concrete.

By the way, the orientation of the vibrating rod 31 and the insertion section 41 (in other words, the orientation of the vibration rod 31 and the insertion section 41) cannot be changed only by changing the orientation of the arm section 20 and moving the insertion unit 50 by rotating the revolving body 12 while the position of the base machine 10 is fixed. , the angular position about the axis X parallel to the extending direction of the vibrating rod 31) is restricted. And it may be difficult to insert the vibrating rod 31 and the joint cutting plate M into the placed concrete C in an appropriate direction only by such an operation. As a result, it becomes necessary to frequently move the entire base machine 10 by operating the traveling body 11 of the base machine 10, which may cause a problem that the efficiency of the joint cutting work is lowered.

Regarding the above problem, in this embodiment, the insertion unit 50 is rotatably supported around the axis X by the rotation support portion 60 . Therefore, without changing the position of the traveling body 11, by changing the orientation of the insertion unit 50 with respect to the arm section 20 and, if necessary, by turning the revolving body 12 to change the orientation of the arm section 20, the plurality of vibrating rods 31 can be moved. And the insertion portion 41 can be inserted into the placed concrete C in an appropriate orientation. As a result, the number of times the traveling body 11 changes direction can be reduced. Thus, it is possible to provide the joint cutting plate inserting device 1 capable of inserting the joint cutting plate M into the placed concrete C in the entirety of the placed concrete C efficiently.

In the present embodiment, the jointing plate inserting device 1 further includes a collapse prevention portion 80 that protrudes from the insertion portion 41 and supports the other end of the jointing plate M. As shown in FIG. As a result, the joint cutting plate M is held in an upright posture along the insertion portion 41 without falling down. As a result, after the jointing plate M is attached to the insertion portion 41, the jointing plate M is held in an upright posture without being supported by the operator. Therefore, the safety of the joint cutting work is improved and the efficiency of the work is improved.

In this embodiment, the lower end of the insertion portion 41 protrudes below the tip of the vibrating rod 31 . That is, when the joint cutting plate M is attached (engaged) to the insertion portion 41 by the lower end of the insertion portion 41 of the joint cutting plate M being brought close to the vicinity of the surface of the placed concrete C, the tip of the vibration rod 31 has not yet penetrated into the cast concrete C. As a result, even if the vibrating rod 31 vibrates while the worker is mounting the joint cutting plate M to the insertion portion 41, the placed concrete C at the worker's feet vibrates. never. Further, even if the vibrating rod 31 is vibrated at the timing when the tip of the vibrating rod 31 penetrates the placed concrete C, the joint cutting plate M is inserted into the insertion portion 41 before vibrating the vibrating rod 31. can be installed. Therefore, the safety of the joint cutting work is further improved.

In this embodiment, the rotation angle of the insertion unit 50 about the axis X is detected by the rotation angle detection section 70 . This makes it easier to adjust the orientation of the insertion unit 50 .

Although illustration is omitted, the joint cutting plate inserting device 1 has a two-dimensional position of the tip of the arm 20 as shown in FIG. A position detection unit that detects the position through which the arm 20 passes), an orientation detection unit that detects the orientation (direction) of the arm 20 in the horizontal direction, and detection results from the position detection unit, the orientation detection unit, and the rotation angle detection unit 70 ( a position calculation unit that calculates two-dimensional positions of each of the vibrating rods 31 and the insertion portions 41 in plan view based on the position, orientation, and rotation angle). As a result, the insertion positions of the vibrating rod 31 and the insertion portion 41 can be accurately confirmed, and the insertion unit 50 can be moved more efficiently in an appropriate position and orientation (orientation).

Further, in the present embodiment, the joint cutting plate M is loaded on the loading place provided outside the casting area of the concrete placement C, but the loading place is not limited to this. For example, as shown in FIGS. 6 and 7, the jointing plate inserting device 1 may have a stocker 90 capable of stacking a plurality of jointing plates M. FIG. Specifically, as shown in FIGS. 6 and 7, a gap is provided between the traveling body 11 and the revolving body 12, the stocker 90 is fixed to the bottom surface 12a of the revolving body 12, and a plurality of joints are provided. It is formed so that the cut plate M can be loaded. The stocker 90 is formed, for example, in the shape of a box with an open upper surface, and is fixed to the bottom surface 12a of the revolving body 12 so as to protrude forward from the end of the revolving body 12 on the front side of the cockpit 13. there is As a result, the joint cutting plate M can be loaded and stocked near the operator, so that the joint cutting plate M can be transported by a short distance, and the efficiency of the joint cutting work can be further improved.

In this embodiment, the shaft portion 61 is fixed to the vibrating rod support portion 32 of the vibrating portion 30, and the bearing 62 is fixed to the bracket 23. The fixed shaft portion 61 may be fixed to the bracket 23 . Also, although the insertion unit 50 is rotationally driven by a motor, it is not limited to this, and may not be driven by a motor. In this case, for example, in a state in which the lower end of the insertion portion 41 of the insertion unit 50 is in contact with the surface of the placed concrete C, the arm portion 20 is swung or the revolving body 12 is revolved so that the insertion unit 50 is can be rotated. Also, the rotation angle detection unit 70 may not be provided.

Further, although the outer shape of the insertion portion 41 is assumed to be rectangular, an appropriate outer shape can be adopted in accordance with the shape of the joint cutting plate M to be used. Moreover, although the insertion portion 41 is formed in a frame shape, the insertion portion 41 may be made of a single steel plate. The embankment body to which the joint cutting plate inserting device 1 is used is not limited to a dam, and may be an appropriate embankment body such as a coastal embankment or a river embankment.

In addition, when priority is given to preventing the joint cutting plate M from falling during the joint cutting work by the fall prevention unit 80, or when priority is given to improving the efficiency of the work of transporting the joint cutting plate M by the stocker 90, the rotation Support 60 is not required. In the joint cutting board inserting device 1 in this case, the inserting unit 50 is simply fixed to the bracket 23, and the other structures described above can be appropriately adopted.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications and changes are possible based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1... Joint cutting board insertion apparatus 10... Base machine 11... Traveling body 12... Revolving body 12a... Bottom surface 20... Arm part 31... Vibration rod 41... Insertion part 50... Insertion unit 60... Rotation Supporting portion 70 Rotation angle detecting portion 80 Collapse preventing portion 90 Stocker C Placed concrete (placed concrete) M Joint cutting plate M1 Folding portion X Axis

Claims (4)

A joint cutting plate inserting device for inserting a joint cutting plate into the concrete while vibrating the cast concrete,
a base machine having a traveling body capable of traveling on the concrete, and a rotating body rotatably supported on the upper part of the traveling body;
an arm swingably supported by the revolving body;
a plurality of vibrating rods arranged in a row; and an inserting portion arranged parallel to the plurality of vibrating rods and engaged with a folded portion on one end side of the joint cutting plate, wherein the vibrating rod and the inserting portion is attached to the tip of the arm and is inserted into the concrete by swinging the arm;
a stocker fixed to the revolving body and capable of loading the joint cutting plate;
including
The stocker is a joint cutting board inserting device fixed to the bottom surface of the revolving body so as to protrude forward of the revolving body . 2. The joint cutting board inserting device according to claim 1, further comprising a rotation support part for supporting said insertion unit rotatably around an axis parallel to the extending direction of said vibration rod at the tip of said arm part. 3. The joint cutting board inserting device according to claim 2, further comprising a rotation angle detector for detecting a rotation angle of said insertion unit about said axis. The jointing plate inserting device according to any one of claims 1 to 3 , further comprising a collapse prevention portion projecting from the insertion portion and supporting the other end of the jointing plate.

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