JPH06212734A - Method and apparatus for placing reinforcement cages in connection - Google Patents

Abstract

PURPOSE:To automatically connect plural reinforcement cages to each other through connecting fittings outside a lower form. CONSTITUTION:A coupling fitting provided with connecting means at both end surface parts thereof is supported by a coupling fitting support means 6. Reinforcement cages are disposed on both sides of the coupling fitting supported by the coupling fitting support means 6, and an end fitting provided on the end area of the reinforcement cage is supported by an end fitting rotary supporting means 7. The end fitting and the reinforcement cage are moved in the axial direction of the reinforcement cage by an axial moving means 8 while the end fitting is rotated by the end fitting rotary supporting means 7 to connect a connected means provided on the end fitting to a connecting means provided on the side surface part of the coupling fitting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting a reinforcing bar cage used as a core material for a PC pile (prestressed concrete) pile supporting a structure or a concrete pole body such as a PC pole used for an electric pole. It relates to the device.

[0002]

2. Description of the Related Art For example, Japanese Patent Application No. 2-40086 is known as a method for producing a cylindrical PC pile, a concrete pile in which a prestress is introduced into a concrete column such as a PC pole, or a pole. ing. In the conventional example shown in this Japanese Patent Application No. 2-40086, a rebar cage as a core material is set in a lower mold of a mold that is divided into upper and lower semicircles, and a predetermined amount of After filling with fresh concrete, covering it with the upper formwork and fastening and sealing it, the tension rod connected in advance to the end of the rebar cage was pulled axially from the outside of the formwork to give tension to the rebar cage inside. In the state (tensioning the tension rod to the fixed plate of the mold), the mold is placed on the centrifugal molding device and the mold is subjected to high-speed rotation to perform centrifugal molding. It is usual to form and manufacture such concrete columns. When manufacturing as described above, the work of applying a tension force to the rebar cage is not reliably performed, in other words, if the end metal fittings of the rebar cage and the tension rod or the like are not reliably connected, the rebar There is a drawback in that it is not possible to manufacture a concrete column body in which a cage is loosened or broken when it is tensioned and a high-quality normal prestress is introduced.

When manufacturing two or more prestressed concrete columns with a single formwork, as shown in Japanese Patent Application No. 2-40086, it is connected with a tension rod. Do not connect the other ends of the rebar cage via the connecting metal fittings, and pull the rebar cage with the tension rod at the end of the form to give tension, but there was the same problem as above. . In addition, for the connection between the reinforcing bar cage and the connecting metal fitting in the above, the reinforcing bars are hung on both sides of the connecting metal fitting placed in the lower formwork with a crane, etc., and the complicated connecting work is done manually in a narrow lower formwork. There is a problem that it takes time and effort. Further, there is a problem in that a rebar cage and a connecting metal fitting (long and heavy) are hung by a crane during connecting work in the lower formwork, which poses a danger.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and its object is to connect a plurality of rebar cages through a connecting fitting. (EN) A method and an apparatus for connecting rebar cages that can be automatically performed outside the formwork.

[0005]

According to a method of connecting a reinforcing bar cage of the present invention, a connecting means 2 is provided on each of both side surfaces of a joint metal fitting 1, and an end metal fitting 4 is provided on an end metal fitting 4 at an end of a reinforcing metal cage 3. A method for connecting a reinforcing bar basket 3 for connecting the means 5 to the joint fitting 1 by moving and rotating the joint fitting 1, wherein the joint fitting 1 provided with the connecting means 2 at both end surfaces is supported by the fitting fitting supporting means 6, Reinforcing bar cages 3 are arranged on both sides of the joint metal fittings 1 supported by the joint metal fitting support means 6, and end metal fittings 4 provided at the ends of the rebar metal cages 3 are supported by the end metal fitting rotation supporting means 7 to form end metal fittings. While rotating the end fitting 4 by the rotation support means 7, the end fitting 4 and the reinforcing bar cage 3 are moved in the axial direction of the reinforcing bar cage 3 by the axial moving means 8 to be connected means 5 provided on the end fitting 4.
Is connected to a connecting means 2 provided on the side surface of the joint metal fitting 1.

Further, in the rebar cage connecting apparatus of the present invention, the connecting means 2 provided on both side surfaces of the joint fitting 1 and the connected means 5 provided on the end fitting 4 at the end of the rebar cage 3 are jointed. A device for connecting by means of movement and rotation to the metal fitting 1 side, which is supported by the fitting metal fitting support means 6 for supporting the fitting metal fitting 1 having the connecting means 2 on both side surfaces, and the fitting metal fitting support means 6. End metal fitting rotation support means 7 for supporting the end metal fittings 4 provided at the ends of the reinforcing bar cages 3 arranged on both sides of the joint metal fitting 1 to rotate the end metal fittings 4 and the reinforcing metal cage 3, and the end metal fittings. 4 and an axial moving means 8 for moving the reinforcing bar cage 3 in the axial direction of the reinforcing bar cage 3.

Then, the joint metal fitting supporting means 6 for supporting the joint metal fitting 1 is provided with a holding means 9 for clamping and holding the joint metal fitting 1, or the end metal fitting 4 is supported for supporting the end metal fitting 4. It is also preferable that the end fitting rotation supporting means 7 for rotating the reed basket 4 and the reinforcing bar basket 3 is provided with a holding means 10 for clamping and holding the end fitting 4. Also, the connected means 5 provided on the end fitting 4 at the end of the rebar cage 3
Is formed by providing an enlarged portion 12 at the tip of the shaft portion 11, and the holding plate 14 is superposed on the engagement plates 13 provided at both end portions of the joint fitting 1 so as to be rotatable in the circumferential direction to form the connecting means 2. , A plurality of gourd-shaped engaging holes 15 and circular holding holes 16 having the same pitch in the circumferential direction are formed in each of the engaging plate 13 and the holding plate 14, and the large holes 15a and the circular holding holes 16 of the gourd-shaped engaging holes 15 are formed. The sizes of the enlarging parts 12 of the connected means 5 are different.
It is also preferable that the small hole 15b of the gourd-shaped engagement hole 15 is so large that the shaft portion 11 of the connected means 5 can be inserted but the enlarged portion 12 cannot be inserted.

[0008]

According to the present invention having the above-described structure, however, the joint fitting 1 having the connecting means 2 on both end surfaces is supported by the joint fitting supporting means 6, and the joint supported by the fitting fitting supporting means 6. The rebar cages 3 are arranged on both sides of the metal fitting 1, and the end metal fittings 4 provided at the ends of the rebar cage 3 are attached to the end metal fitting rotation supporting means 7.
Supported by the end metal fitting rotation support means 7, the end metal fitting 4 is rotated by the end metal fitting rotation support means 7, and the end metal fitting 4 and the reinforcing bar cage 3 are moved by the axial moving means 8 to provide the connected means 5 provided on the end metal fitting 4.
Is connected to the connecting means 2 provided on the side surface of the joint fitting 1, so that the rebar cages 3 can be automatically connected to both sides of the joint fitting 1 outside the formwork.

A device for connecting the rebar cages 3 on both sides of the joint fitting 1 includes a joint fitting supporting means 6 for supporting the joint fitting 1 provided with connecting means 2 on both side surfaces and a joint fitting supporting means 6. The end fittings 4 supported on the ends of the reinforcing bar cages 3 arranged on both sides of the supported fittings 1 are supported by the end fittings 4.
And an end fitting rotation supporting means 7 for rotating the rebar cage 3
And an axial moving means 8 for moving the end fittings 4 and the reinforcing bar cages 3 to provide a device for automatically connecting the reinforcing bar cages 3 to both sides of the joint fitting 1 with a simple structure. It is something that can be provided.

Then, the joint metal fitting supporting means 6 for supporting the joint metal fitting 1 is provided with the holding means 9 for clamping and holding the joint metal fitting 1, whereby the joint metal fitting 1 is simply clamped. In addition, the end fitting 4 is clamped and held by the end fitting rotation supporting means 7 that supports the end fitting 4 and rotates the end fitting 4 and the reinforcing bar basket 3. When the holding means 10 is provided, the end fitting 4 can be securely held with a simple structure such as a clamp.

Further, the connecting means 5 provided on the end fitting 4 at the end of the reinforcing bar basket 3 is constructed by providing the enlarged portion 12 at the tip end of the shaft 11, and is provided on both end surfaces of the fitting fitting 1. The holding plate 14 is superposed on the plywood 13 so as to be rotatable in the circumferential direction to form the connecting means 2, and a plurality of gourd-shaped engagement holes 15 and a circular shape having the same pitch in the circumferential direction are formed in each of the engagement plate 13 and the holding plate 14. The holding hole 16 is formed, and the large hole 1 of the gourd-shaped engagement hole 15 is formed.
The sizes of the circular holding hole 5a and the circular holding hole 16 are set so that the enlarged portion 12 of the connected means 5 can be inserted, and the small hole 15b of the gourd-shaped engaging hole 15 can be inserted by the shaft portion 11 of the connected means 5. If the enlarged portion 12 is of a size that cannot be inserted, the enlarged portion 12 is inserted with the large hole 15a of the gourd-shaped engagement hole 15 and the circular holding hole 16 combined, and the end fitting 4 further rotates in this state. As a result, the shaft portion 11 is positioned and connected to the small hole 15b of the gourd-shaped engagement hole 15, and the connected means 5 is thus connected to the connecting means 2 in this manner.
It can be securely connected by inserting and rotating.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 is a schematic plan view showing the whole of the present invention, FIG. 2 is a schematic side view, and FIG. 3 is a schematic front view. In the figure, reference numeral 17 denotes a traveling carriage, and the traveling carriage 17 can freely travel along a rail 25. That is, the traveling carriage 17 has a geared motor 1
8 is attached, and the running wheel 1 is driven by the geared motor 18.
9 is rotationally driven to run. A slide table 20, which is movable in a direction orthogonal to the rail 25, is provided on the upper surface of the traveling carriage 17. This slide table 20 has a linear guide 2 as shown in FIG.
1, is movably supported on the traveling carriage 17 through the guide bearings 22, and is shown in FIG. 4, FIG. 5, FIG.
As shown in FIG. 23, the drive motor 2 provided on the moving carriage 17
The rack 68 provided on the side end surface portion of the slide table 20 is meshed with the pinion 24 rotating by 3.
The slide table 20 is driven by driving the drive motor 23.
Moves in a direction orthogonal to the rail 25.

A body frame 26 is provided on the upper surface of the slide table 20, and an elevating frame 27 is mounted on the front side of the body frame 26 so as to be vertically movable via a linear guide 21 and a guide bearing 22. The elevating cylinder 28 allows the elevating frame 27 to move up and down depending on the diameter of the reinforcing bar cage 3 and the supporting height of the reinforcing bar cage 3 described below. As shown in FIG. 8, a joint metal fitting support base 29 is provided on the upper surface of the front part of the elevating frame 27, and the joint metal fitting support base 29 constitutes the joint metal fitting support means 6. As shown in FIGS. 13 and 14, an arm 31 is rotatably supported on the elevating frame 27.
A cushion roller 30 having a rubber outer periphery is rotatably provided on the upper end of the arm 31, and an arm 31 is rotated by an air cylinder 32.
When the fitting fitting 4 is rolled and placed on the fitting fitting support 29 from the front end of the fitting fitting 4, the fitting fitting 4 hits the cushion roller 30 and stops.
Plays the role of a damper. Then, the position of the cushion roller 30 is changed by driving the air cylinder 32 according to the diameter of the joint fitting 4 supplied onto the joint fitting support 29. As shown in FIGS. 8, 9, and 10,
The upper end surface of the main body frame 26 has a pressing roller 38 at the tip.
Is attached to a bracket 34 in a rotatable manner, and a rod end of a hydraulic or pneumatic cylinder 36 is pivotally supported by a bracket 35 provided on the upper surface of the main body frame 26. The part is pivotally supported on the pivot arm 33 by a shaft 37. Therefore, the rotating arm 33 is rotated by driving the cylinder 36, and the pressing roller 38 provided at the tip of the rotating arm 33 allows the joint fitting support base 2 to be rotated.
It is possible to press and clamp the upper portions of the joint fittings 4 having various diameters which are placed and supported on the support member 9. Then, the rotary arm 3 having the pressing roller 38
A holding means 9 for clamping and holding the engagement plate 13 of the joint fitting 4 is constituted by 3 and the cylinder 36.

1, FIG. 2, FIG. 11, FIG. 12, FIG. 15, FIG. 16, etc., end metal fitting support frames 39 are provided on the upper and lower sides of the upper surface of the slide table 20, respectively, and an elevating frame 27. It is arranged so as to be movable from the starting point in a direction parallel to the rail 25. That is, as shown in FIGS. 11 and 21, the guide rod 4 supported by the elevating frame 27.
End metal fitting support frames 39 are movably attached to the left and right sides of 3 via guide bearings 44.
As shown in FIGS. 18, 19 and 20, a pair of rotating rollers 40 are arranged on the upper surface of the end fitting support frame 39, and the driving motor 41 is driven to rotate by a gear 42. It is designed to be transmitted to and rotated. The end fittings 4 provided at the ends of the reinforcing bar cage 3 are placed and supported on the pair of rotating rollers 40, and the end fittings 4 are rotated. Therefore, this is the end fitting rotation. It is a supporting means 7. As shown in FIG. 11, the lifting frame 27 is provided with a pair of cylinders 45 such as hydraulic cylinders, and the tip of the rod of one cylinder 45 is connected to one end fitting support frame 39. Of the other end fitting support frame 39 is connected to the one end fitting support frame 39 and the other end fitting support frame 39 is movable. 39 is movable. A projecting edge portion 40a is provided on the outer periphery of one end of the rotating roller 40, and the cylinder 45 is driven to move the end fitting support frame 39 in a direction parallel to the rail 25 (axial direction of the reinforcing bar basket 3). When moved, the projecting edge portion 40a abuts on the edge of one end of the end fitting 4 supported by the rotating roller 40 to move the end fitting 4. Therefore, the rotating roller 40, the cylinder 45 and the like constitute the axial moving means 8. As shown in FIGS. 15, 16 and 17, the end fitting support frame 39 is provided with an end fitting clamp device 46 which constitutes the holding means 10. The end fitting clamp device 46 includes a bracket 47 projecting from the end fitting support frame 39 and a hydraulic or pneumatic cylinder 4 mounted on a bracket 47.
Of the rotary arm 50 rotatably pivotally supported at the lower end of 8, and rotatably attached to a bracket 49 provided at the upper end of the pillar projecting upward at the rear end of the end fitting support frame 39. The rear end is rotatably connected. A pressing roller 50a is rotatably attached to the tip of the rotary arm 50. And
The presser roller 50a is placed on and supported by the pair of rotary rollers 40, and the upper end of the end fitting 4 (various diameters) of the reinforcing bar cage 3 is pressed and clamped.

The traveling carriage 17 is provided with a control panel 51 and a hydraulic control unit 52 as shown in FIGS. Further, the position indicated by a in FIG. 1 is at the joint fitting 1 and the rebar cage 3.
Is a position at which the joint fitting 1 is set in order to connect the end fittings 4 provided at the ends of the joint fittings 1. The reinforcing bar cage receiving device 53 is parallel to the rails 25 on both sides of the set position when the fitting fitting 1 is joined. Has been placed. As shown in FIG. 2, the reinforcing bar cage receiving device 53 is composed of a receiving roller 54 and an elevating cylinder 55 for elevating the receiving roller 54. Further, a joint metal fitting supplying portion 66 is provided at a position apart from the position a on the rail 25, and the traveling carriage 17 is moved along the rail 25 to the joint metal fitting supplying portion 66 position, and the joint metal fitting supporting portion 66 is supported at this position. The joint fitting 1 is supplied onto the joint fitting support base 29 which is the means 6.

As shown in FIG. 27, the reinforcing bar cage 3 has main bars 56 arranged parallel to each other in the circumferential direction and fixed by a hoop bar 57, and an end fitting 4 is attached to an end of the reinforcing bar cage 3 ( That is, the end portion of the main bar 56 is attached to the end fitting 4. The end fitting 4 has a threaded portion at the rear end of the bolt which is screwed to project the bolt, and the bolt constitutes the connected means 5. The head portion of the bolt is at the tip of the shaft portion 11 of the bolt, and this head portion is the enlarged portion 12. A base-side enlarged portion 58 is provided on the protruding base portion of the shaft portion 11.

As shown in FIG. 24, the joint fitting 1 has a body portion 59.
Engagement plates 13 having a diameter larger than that of the body portion 59 are provided at both ends, and holding plates 14 are superposed on the outer sides of the engagement plates 13 so as to be rotatable in the circumferential direction. Here, the engagement plate 1
As shown in FIG. 26, a plurality of gourd-shaped engagement holes 3 are formed at the same pitch in the circumferential direction. Also, the engaging plate 1
3, a plurality of holes 60 are formed at the same pitch, and the plunger 6 elastically urged in the direction of protruding into the holes 60.
1 is inset. Further, as shown in FIG. 26, the engaging plate 13 is provided with a screw hole 62. As shown in FIG. 25, the holding plate 14 is provided with a plurality of circular holding holes 16 corresponding to the gourd-shaped engaging holes 15 at the same pitch, and corresponding to the screw holes 62, a plurality of arcuate lengths corresponding to the same pitch. A hole 63 is provided. As shown in FIG. 24, the arcuate elongated hole 63 has a large diameter so that the outer half of the holding plate 14 can be inserted by the head of the screw 64, and the inner half cannot be inserted by the head of the screw 64. The diameter is small so that only the shaft can be inserted. Then, the screw 64 inserted into the arc-shaped long hole 63 is screwed into the screw hole 62, whereby the holding plate 14 is attached to the outside of the engagement plate 13 so as to be rotatable in the circumferential direction. In this case, the holding plate 14 can rotate with respect to the engaging plate 13 only within a range in which the screw 64 can move along the arcuate elongated hole 63. In addition, the holding plate 14 has two
Plural sets of engaging holes 65 are provided at the same pitch in the circumferential direction, and when the holding plate 14 is rotated to one side along the arc-shaped elongated hole 63, two sets of engaging holes are formed. The plunger 61 is inserted into one of the engagement holes 65 of the engagement holes 65, and the holding plate 14
When one is rotated along the arc-shaped elongated hole 63 to the other side, the plunger 61 is inserted into the other engaging hole 65 of the pair of engaging holes 65.
Is to be inserted. Then, one engagement hole 6
The circular holding hole 16 faces the large hole 15a of the gourd-shaped engagement hole 15 in a state where the plunger 61 is inserted into the 5 and the circular holding hole 16 is formed in a state in which the plunger 61 is inserted into the other engagement hole 65. It is set so as to face the small hole 15b of the linear engagement hole 15. Here, gourd-shaped engagement hole 1
The large holes 15a and the circular holding holes 16 of the No. 5 are respectively sized so that the enlarged portion 12 of the connected means 5 can be inserted, and the size of the small holes 15b of the gourd-shaped engaging holes 15 is set to the connected means. The shaft 11 of 5 can be inserted, but the enlarged part 12
Is a size that cannot be inserted. Also, the connected means 5
The base side enlarged portion 58 has a size such that it can be fitted into the circular holding hole 16 exactly.

The connection of the end fittings 4 at the ends of the reinforcing bar cage 3 on both sides of the joint fitting 1 using the above-described device is performed as follows. First, the traveling carriage 17 is caused to travel along the rails 25, and the traveling carriage 17 is moved to the joint fitting supply portion 66. Here, the joint fitting 1 is supplied onto the joint fitting support base 29 which is the fitting fitting supporting means 6. In this case, in the embodiment, from the front end portion of the joint fitting support base 29 to the joint fitting support base 2
It is supplied by rolling the fitting 1 on the
At this time, the joint metal fitting 4 contacts the cushion roller 30 and stops. Here, the present invention is not limited to the above embodiment, and various other means may be adopted to supply the joint fitting 1 to the joint fitting support 29. The cylinder 36 is driven with the joint metal fitting 4 placed on the joint metal fitting support 29, and the joint metal fitting 4 is driven by the holding roller 38 as the holding means 9.
Is to clamp. On the other hand, at the end of the joint metal fitting 1 shown in FIG.
The rebar cage 3 to which is attached is suspended and mounted by a crane or the like, and the rebar cage receiving device 53 on which the rebar cage 3 is mounted and supported is lifted to a predetermined position by the elevating cylinder 55. Next, the fitting 1 is attached to the fitting support 29.
The movable carriage 17 is moved to the position a in FIG. 1 while being supported and clamped by. In this case, the slide table 20 is moved to the side opposite to the reinforcing cage 3 and the lifting frame 2 is moved.
The moving carriage 17 is moved to the position a in FIG. When the moving carriage 17 comes to position a, the moving carriage 17
Of the slide table 20 by driving the drive motor 23 with the lifting frame 27 being lowered.
Move toward the rebar cage 3 side. In this case, the lower surface of the protruding portion of the slide table 20 is supported by the support roller 67 as shown in FIG. When the slide table 20 is moved so as to project in this manner, the rotary rollers 40 constituting the end fitting rotation supporting means 7 located on both sides are moved below the end fittings 4 provided at the ends of the reinforcing bar cages 3 on both sides. Will be located. Next, the elevating cylinder 28 is driven to elevate the elevating frame 27, and the end fittings 4 provided at the ends of the reinforcing bar cages 3 on both sides are placed and supported on the rotating rollers 40 located on both sides. . In this state, the cylinder 48 is driven to clamp and support the end fitting 4 by the pressing roller 50a. In this case, the end fittings 4 provided at the ends of the reinforcing bar cage 3 are positioned to face each other with a gap between both sides of the joint fitting 1 supported by the fitting fitting supporting means 6.
In this state, the drive motor 41 is driven to rotate the rotary roller 40.
To rotate the end fitting 4 (at this time, the end fitting 4 and the rebar cage 3 placed on the receiving roller 54 also rotate at the same time) to connect the enlarged portion 12 of the connected means 5 to the fitting fitting 1. The circular holding hole 16 of the holding plate 14 provided at the side end of the roller is aligned by using a sensor or the like, and the cylinder 45 is driven to move the rotary roller 40 to the joint metal fitting support 29 side to be supported by the rotary roller 40. The flange 4 is provided on the edge of the end of the end fitting 4.
0a, the end fitting 4 is moved to the fitting fitting 29 side, and the enlarged portion 12 is moved from the circular holding hole 16 to the gourd-shaped engaging hole 1
5 is inserted into the large hole 15a (here, the circular holding hole 16 and the large hole 15a of the gourd-shaped engagement hole 15 are made to coincide with each other in advance), and the enlarged portion 12 is projected to the outside of the large hole 15a. The movement by the cylinder 45 is stopped in a state where the base-side enlarged portion 58 is fitted in the circular holding hole 16, and then the rotating roller 40 is rotated to rotate the shaft portion 11 of the connected means 5.
Is moved from the large hole 15a to the small hole 15b (in this case, since the base side enlarged portion 58 is fitted in the circular holding hole 16, the holding plate 14 is rotated), and the enlarged portion 12 is located outside the small hole 15b. Located in. Therefore, even if a tensile force is applied to the reinforcing bar cage 3, the enlarged portion 12 is located outside the small hole 15b so that it does not come off, and the end fitting 4 of the reinforcing bar cage 3 is connected to the side portion of the joint fitting 1. Will be done. In this case, the plunger 61 is further elastically engaged with the one engagement hole 65 to maintain the connected state. For this reason, even when a fishing line is caught by a crane or the like, the connected means 5 is kept in the small hole 15b and is not displaced to the large hole 15a side. Here, after connecting the end metal fittings 4 at the ends of one rebar cage 3 to one side of the joint metal fitting 1 as described above, the other end metal fittings of the rebar cage 3 are connected to the other side of the joint metal fitting 1. 4 may be connected in the same manner as described above, or the end fittings 4 at the ends of the reinforcing bar cages 3 on both sides may be simultaneously connected to both sides of the joint fitting 1 in the same manner as described above. .. Further, similarly, two or more joint fittings 1 may be provided to connect three or more rebar cages 3. In this way, the state in which the reinforcing bar cage 3 is connected by the joint fitting 1 is lifted by a crane and sent to the next step. That is, the rebar cages 3 are set in the lower form while being connected to each other by the joint fittings 1.

When the joint fitting 1 is supplied to and supported by the joint fitting support 29, the joint fitting 1 is positioned in the circumferential direction, and the reinforcing cage 3 is supplied to the reinforcing cage receiver 53. When supporting, the end fitting 4 at the end of the reinforcing bar cage 3 may be positioned in the circumferential direction. In this case, during the above process, the drive motor 41 is driven to rotate the rotating roller 40 to rotate the end fitting 4, and the enlarged portion 12 and the circular holding hole 1 are rotated.
The step of aligning 6 and 6 can be omitted.

In the above embodiment, the reinforcing bar cage 3 is placed on the reinforcing bar cage receiving device 53 in advance and the lifting cylinder 5 is moved.
After being raised to a predetermined position by 5, the lifting frame 2
The drive motor 23 is driven in a state in which 7 is lowered to move the slide table 20 toward the reinforcing bar cage 3 side, and the rotary rollers 40 constituting the end fitting rotation supporting means 7 located on both sides are moved to both sides. It is positioned below the end fitting 4 provided at the end of the rebar cage 3, then the lifting cylinder 28 is driven to raise the lifting frame 27, and the rotary rollers 4 located on both sides are moved.
End metal fittings 4 provided at the ends of the rebar cages 3 on both sides
It shows an example of mounting and supporting
1 in a state in which the joint fitting 1 is supported by the joint fitting supporting means 6.
The traveling carriage 17 is moved to the position a, the driving motor 23 is driven at this position, the slide table 20 is slid and projected, and the receiving roller 54 of the reinforcing bar cage receiving device 53 is raised to align with the rotating roller 40. And then
The rebar cage 3 is hung by the crane and the receiving roller 5
4, the rebar cage 3 is placed, and the end fitting 4 at the end of the rebar cage 3 is placed on and supported by the rotating roller 40.
Alternatively, the end fitting 4 may be clamped and supported. After that, the jointed metal fitting support means 7 is connected to the joint metal fitting support means 6 in the same manner as described above.

In the embodiment shown in the accompanying drawings, the rotating roller 40, the cylinder 45, etc. constitute the axial moving means 8, but the reinforcing bar cage 3 or the joint fitting 1 is placed on the conveyor and the shaft of the reinforcing bar cage 3 is carried out. You may make it move to a direction.
In this case, the conveyor constitutes the axial moving means 8.

[0022]

According to the present invention, as described above, the joint fitting having the connecting means at both end portions is supported by the joint fitting supporting means, and the reinforcing bars are provided on both sides of the joint fitting supported by the fitting fitting supporting means. The cage is arranged and the end fittings provided at the end of the rebar cage are supported by the end fitting rotation support means, and the end fitting rotation support means rotates the end fitting, and the end metal fittings are moved by the axial moving means. Since the rebar cage is moved in the axial direction of the rebar cage and the connected means provided on the end fitting is connected to the connecting means provided on the side surface of the joint fitting, the rebar cage is placed on both sides of the fitting outside the formwork. It can be automatically connected, and compared to the conventional method of manually connecting the joint fitting and the rebar cage in the form within the form, it can be connected easily and accurately without requiring human intervention. is there.

Further, the device for connecting the rebar cages on both sides of the joint fitting includes a joint fitting supporting means for supporting the joint fitting having connecting means on both side surfaces and a joint fitting supported by the fitting fitting supporting means. End metal fitting rotation support means for supporting the end metal fittings provided at the ends of the reinforcing bar cages arranged on both sides to rotate the end metal fittings and the reinforcing bar cage, and axial movement for moving the end metal fittings and the reinforcing cage. Since it is configured by including means, it is possible to provide a device for automatically connecting the reinforcing bar cages on both sides of the joint fitting with a simple configuration, and as a result, without requiring manpower, the joint fitting can be provided outside the formwork. Reinforcing bar cages can be easily and accurately connected to both sides of the.

Further, the joint metal fitting supporting means for supporting the joint metal fitting is provided with the holding means for clamping and holding the joint metal fitting, whereby the joint metal fitting can be securely held by the simple structure of clamping. In addition, if the end fitting rotation supporting means for supporting the end fitting and rotating the end fitting and the rebar cage is provided with a holding means for clamping and holding the end fitting, the end part is provided. The metal fittings can be securely held with a simple structure called a clamp.

Further, the connecting means provided on the end fitting of the end of the reinforcing bar basket is constructed by providing an enlarged portion at the tip end of the shaft, and the holding plate is surrounded by the engaging plates provided on both end surfaces of the joint fitting. And a plurality of gourd-shaped engaging holes and circular holding holes having the same pitch in the circumferential direction are formed in the engaging plate and the holding plate, respectively, so as to form a coupling means. The size of the large hole and the circular holding hole is set so that the enlarged portion of the connected means can be inserted, and the size of the small hole of the gourd-shaped engaging hole can be inserted into the shaft portion of the connected means but cannot be inserted into the enlarged portion. With the size, the large part of the gourd-shaped engagement hole and the circular holding hole are inserted together, and the enlarged part is inserted. It is located in the hole and is connected in this way. Stage can be reliably connected with the operation of inserting and rotating the coupling means, in which automatic connection is possible with a simple configuration.

[Brief description of drawings]

FIG. 1 is a plan view of the present invention.

FIG. 2 is a side view of the above.

FIG. 3 is a front view of the above.

FIG. 4 is a plan view showing the slide table of the above.

FIG. 5 is a side view showing the slide table of the above.

FIG. 6 is a rear view showing the slide table of the above.

FIG. 7 is a rear view of an essential part showing the slide table of the above.

FIG. 8 is a side view showing the joint fitting support means portion of the above.

FIG. 9 is a plan view of holding means provided on the joint fitting support means of the above.

FIG. 10 is a view showing a pressing roller of the same, (a) is a front view and (b) is a side view.

FIG. 11 is a plan view showing the joint fitting support means and the end fitting rotation support means of the above.

FIG. 12 is a partially omitted side view showing the above-described joint metal fitting support means and end metal fitting rotation support means.

FIG. 13 is a partially cutaway plan view showing a cushion roller portion of the above.

FIG. 14 is a side view showing a cushion roller portion of the above.

FIG. 15 is a side view showing the above-mentioned end fitting rotation support means.

FIG. 16 is a plan view of a holding means provided on the end fitting rotation supporting means of the above.

FIG. 17 shows the pressing roller of the same, (a) is a front view and (b) is a side view.

FIG. 18 is a plan view of an essential part showing the above-mentioned end fitting rotation support means.

FIG. 19 is a side view of an essential part showing the above-mentioned end fitting rotation support means.

FIG. 20 is a plan view showing a portion for transmitting a driving force from the drive motor of the above to the rotating roller.

FIG. 21 is a partially cutaway developed plan view showing the above-mentioned moving means.

FIG. 22 is a plan view showing a mechanical portion for moving the slide table of the above.

FIG. 23 is a front view showing a mechanism portion for moving the slide table of the above.

FIG. 24 is an exploded cross-sectional view of the joint fitting of the above.

FIG. 25 shows the same holding plate, (a) is a front view and (b) is a rear view.

FIG. 26 is a front view showing the engaging plate of the above.

FIG. 27 is a partially cutaway front view illustrating a state in which an end fitting provided on an end of a reinforcing bar basket is connected to the joint fitting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint metal fitting 2 Connecting means 3 Reinforcing bar cage 4 End metal fitting 5 Connected means 6 Joint metal fitting supporting means 7 End metal fitting rotation supporting means 8 Axial direction moving means 9 Holding means 10 Holding means 11 Shaft portion 12 Enlarged portion 13 Engaging plate 14 Holding plate 15 Gourd-like engagement hole 15a Large hole 15b Small hole 16 Circular holding hole

Claims (5)

[Claims] 1. A rebar cage for connecting a connecting means provided on an end fitting of an end portion of a reinforcing bar cage to a connecting means provided on both side surfaces of the joint fitting by moving and rotating to the joint fitting side. A method of connecting the joint metal fittings, wherein the joint metal fittings provided with the connecting means on both end surfaces are supported by the joint metal fitting supporting means, and the reinforcing bar cages are arranged on both sides of the joint metal fittings supported by the joint metal fittings supporting means and the end portions of the reinforcing bar cages. The end fittings provided on the are supported by the end fitting rotation support means, and the end fittings and the rebar cages are moved in the axial direction of the rebar cage by the axial movement means while rotating the end fittings by the end fitting rotation support means. Then, the connected means provided on the end fitting is connected to the connecting means provided on the side surface of the joint fitting. 2. An apparatus for connecting a connecting means provided on an end fitting of an end portion of a reinforcing bar basket to a connecting means provided on both side surfaces of the fitting fitting by moving and rotating to the fitting fitting side. There are joint metal fitting support means for supporting the joint metal fittings provided with connecting means on both side surfaces, and end metal fittings provided at the end portions of the reinforcing bar cages arranged on both sides of the joint metal fittings supported by the joint metal fitting support means. An end fitting rotation supporting means for supporting and rotating the end fitting and the reinforcing cage, and an axial moving means for moving the end fitting and the reinforcing cage in the axial direction of the reinforcing cage. Reinforcing cage connection device. 3. The rebar cage connecting device according to claim 2, wherein the joint fitting support means for supporting the joint fitting is provided with a holding means for clamping and holding the joint fitting. 4. A holding means for clamping and holding the end fitting is provided on the end fitting rotation supporting means for supporting the end fitting and for rotating the end fitting and the rebar cage. The rebar cage connecting device according to claim 2. 5. A connecting means provided on an end fitting of an end portion of a reinforcing bar basket is configured by providing an enlarged portion at a tip end of a shaft portion, and a holding plate is provided around an engagement plate provided on both end surfaces of the joint fitting. And a plurality of gourd-shaped engaging holes and circular holding holes having the same pitch in the circumferential direction are formed in the engaging plate and the holding plate, respectively, so as to form a coupling means. The size of the large hole and the circular holding hole is set so that the enlarged portion of the connected means can be inserted, and the size of the small hole of the gourd-shaped engaging hole can be inserted into the shaft portion of the connected means but cannot be inserted into the enlarged portion. The rebar cage connecting device according to claim 2, wherein the connecting device has a size.