JPH0539731U - Reinforcing cage assembly jig - Google Patents

Abstract

(57) [Summary] [Purpose] The assembly muscles are held horizontally, and efficient binding is possible. [Structure] A pair of first support plates 16, 1 spaced apart by a predetermined distance
6 face each other and are rotatably supported. Both support plates 1
The shaft ends of the plurality of assembly bars 14 and the shaft bars 12 are detachably fixed to 6 and 16, respectively. Both first support plates 16,1
Two second support plates 18, 18 each having a through hole 18b through which the assembly streak 14 and the axial streak 12 can be inserted are rotatably supported between the six. The second support plate 18 is provided with an assembly line 1
A support member 38 that holds the 4 and the axial reinforcement 12 in place is provided corresponding to each of the reinforcements 14, 12. Each support plate 16, 18
The grooved roller 28 that rotatably supports the roller is commonly disposed on the drive shaft 56 that is rotationally driven by the indexing motor 20. [Effect] The operator can bind all the binding points only by being on one side of the reinforcing cage held by the support plate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a reinforcing cage assembly jig, and more specifically, a plurality of assembly bars extending substantially parallel to the circumferential direction at required intervals and spirally wound around the assembly bars. The present invention relates to an assembling jig capable of efficiently binding a spiral muscle.

[0002]

[Prior art]

 When manufacturing a concrete pouring product such as a concrete pile, a rebar cage is generally used as a core for reinforcing the product. This cage is made up of a plurality of rebars (hereinafter referred to as "axial bars") made of long members, which are arranged in parallel in the circumferential direction at a required interval to form a substantially cylindrical shape, and have a different length outside the cylindrical shape. Reinforcing bars consisting of length members (hereinafter referred to as "assembly bars") are similarly arranged in a substantially cylindrical shape, and a wire rod called "spiral bar" is spirally wound around the outer circumference of this cylindrical assembly bar. It is what is done. In order to manufacture this reinforcing cage, first, the plurality of axial reinforcements and the assembly reinforcements are fixed horizontally between a pair of support plates arranged at a predetermined distance in the axial direction, and at the same time, both reinforcements are fixed. Positioning and fixing are relatively performed by an appropriate holding member. Then, in a state where the spiral muscles are wound around the outer periphery of the plurality of assembly muscles, it is common to bind the portion where the assembly muscles and the spiral muscles intersect with a wire or an appropriate clip. In this cage, the axial muscle and the spiral muscle provide strength, and the assembled muscle is used to hold the spiral muscle. The cage is used not only as a core body for concrete piles, but also as a water guide pipe having a polygonal cross section and as a reinforcing core body for caisson for the submersible method.

[0003]

[Problems to be solved by the device]

 As described above, the assembly bar having the spiral bar wound around the outer periphery is supported with both axial ends thereof fixed to the support plate. For this reason, when the assembled muscle becomes long, the assembled muscle hangs down between the two support plates.When binding the assembled muscle and the spiral muscle, the worker does the binding work while holding the assembled muscle. It had to be done, which was extremely complicated work. Further, in order to bind a number of intersections between the assembly muscles and the spiral muscles, it is necessary for the worker to move relative to the reinforcing cage that is fixedly located. That is, for example, when the binding of the intersection facing the side facing the worker is first completed, the worker moves to the opposite side of the reinforcing cage to perform the binding work. Further, depending on the height position at which the reinforcing cage is supported, the worker is forced to perform the binding work in an unnatural posture in which the waist is bent, which causes a problem of lowering work efficiency.

[0004]

[The purpose of the device]

 The present invention has been proposed in view of the above-mentioned problems inherent in bundling work of the above-mentioned reinforcing cages, and has been proposed to suitably solve this problem. It is an object of the present invention to provide a means capable of efficiently performing a bundling operation in various postures.

[0005]

[Means for Solving the Problems]

 In order to preferably overcome the above-mentioned problems and achieve the intended purpose, the present invention provides a plurality of assembly bars extending substantially parallel to the circumferential direction at required intervals, and spirally winding the assembly bars on the outer side of the assembly bars. An assembly jig for holding the assembly muscles when binding them together with the spiral muscles. The assembly jigs are rotatably supported so as to face each other with a required space therebetween, and the shaft ends of the assembly muscles are detachable. A pair of first support plates that are fixed to the first support plate, and a second support plate that is rotatably supported between the first support plates and that has a through hole that allows the insertion of all the assembly muscles. A support member arranged on the second support plate for holding each assembly streak inserted in the through hole in a fixed position; and a drive means for synchronously rotating the support plates to perform a required indexing. It is composed of

[0006]

【Example】

 Next, a jig for assembling a reinforcing cage according to the present invention will be described with reference to the accompanying drawings, with reference to preferred embodiments. FIG. 1 is an overall perspective view schematically showing an assembling jig for a reinforcing cage according to one embodiment, and the jig is specifically used for a reinforcing core of a concrete pile. It is used to hold the axial reinforcement and the assembly reinforcement that make up the cylindrical rebar cage.

As shown in the overall configuration of FIG. 1, a reinforcing cage assembly jig 10 according to the embodiment has a pair of axial reinforcements 12 and assembly reinforcements 14 in the vicinity of both axial ends thereof which are detachably fixed. First support plates 16 and 16, a plurality of (two plates in the embodiment) second support plates 18 arranged between the support plates 16 and 16 and horizontally holding the axial reinforcement 12 and the assembly reinforcement 14; 1) Support plate 16 and second support plate 18 are basically configured to include an indexing motor 20 for synchronously rotating and driving to perform a desired indexing.

(Regarding the First Support Plate) As shown in FIG. 3, the first support plate 16 is formed in a disk shape having a required diameter, and on a virtual circle having a required radius from the center thereof at a required interval in the circumferential direction. A plurality of (six places at 60 ° intervals in the embodiment) first through holes 16a are formed. Then, the end portion of the assembly streak 14 is inserted into the first through hole 16a and is positioned and fixed via a fixing means 22 described later. Further, a plurality of (12 in the embodiment) second through holes 16b are bored at required intervals in the circumferential direction on a virtual circle having a diameter smaller than the virtual circle in which the first through holes 16a are bored. .. Then, the end portion of the axial line 12 is inserted into the second through hole 16b and positioned and fixed through the fixing means 22. Since the positions of the reinforcing bar 12 and the reinforcing bar 14 are different depending on the specifications (diameter) of the reinforcing cage, the first support plate 16 has the first through holes 16a at positions corresponding to various specifications. By forming a large number of second through holes 16b, it becomes possible to use one support plate 16 for assembling a reinforcing cage of various specifications.

A base 24 that intersects the axial direction of the assembly streak 14 is detachably fixed to the floor surface of the assembly site of the reinforcing cage, and a predetermined lengthwise direction is provided on the upper surface of the base 24. A pair of bearings 26, 26 are arranged so as to be separated from each other. A grooved roller 28 is rotatably supported by each bearing 26, and the first supporting plate 16 is rotatably supported by groove portions 28a, 28a of both rollers 28, 28. Further, one roller 28 is configured to be rotationally driven by the indexing motor 20, and by rotating the roller 28, the first support plate 16 is rotated.

As shown in FIG. 5, the assembly streak 14 is positioned through a fixing means 22 composed of a nut 30 and a bolt 32 while being inserted into the first through hole 16 a of the first support plate 16. It is decided to be fixed. The bolt 32 is formed with a through hole 32a for allowing the assembly streak 14 to be inserted therein, and a bush 34 is inserted in the through hole 32a so that the bolt 32 is attached to the assembly streak 14 through the bush 34. Be fitted. Further, a male screw portion 32b is formed at one end of the bolt 32, and a taper portion 32c having an outer diameter increasing toward the other end is formed at a portion connected to the male screw portion 32b. Further, the bolt 32 is formed with an axial slit (not shown) so that the inner diameter of the through hole 32a can be changed. The first through hole 16a is formed in a tapered shape that expands inward (the side facing the second support plate 18).

That is, when fixing the assembling bar 14 to the first supporting plate 16, the bolt 32 fitted onto the assembling bar 14 so that its tapered portion 32c abuts the tapered portion of the first through hole 16a. It is inserted into the first through hole 16a. Then, the male screw portion 32b of the bolt 32 protruding to the outside of the first support plate 16 is screwed into the nut 30 inserted into the assembly bar 14, whereby the through hole 32a of the bolt 32 is reduced under the engagement action of the tapers. It As a result, the bush 32 is firmly pressed against the assembly streak 14, and the assembled streak 14 is positioned and fixed to the first support plate 16. It should be noted that, when the diameter dimension of the assembly streak 14 is changed in accordance with the change of the specification, it can be dealt with by changing the inner diameter dimension of the bush 34.

Further, the axial reinforcement 12, which is inserted into the second through hole 16b of the first support plate 16, is also positioned and fixed via the fixing means 22 like the assembly reinforcement 14. In addition, a flange portion used to hold the cage when pouring concrete into the assembled reinforcing cage is formed at the shaft end portion of the axial reinforcement 12. For this reason, a groove (not shown) is formed in the nut 30 and the bolt 32 so as to allow the axial reinforcement 12 to be inserted therethrough, and the nut 30 and the bolt 32 are inserted through the groove. 12 is extrapolated. Further, the inner diameter of the second through hole 16b is, of course, set to a size that allows the flange portion of the axial line 12 to be inserted.

(Regarding the Second Support Plate) As shown in FIG. 4, the second support plate 18 is a ring-shaped disc having a required diameter by fixing the pair of half bodies 18a, 18a through the fixtures 36, 36. The inner diameter of the through hole 18b is set to be larger than the diameter of the reinforcing cage. The assembly bar 14 and the shaft bar 12, which are erected and fixed between the first support plates 16 and 16, are inserted into the through hole 18b. Similarly to the first support plate 16, the second support plate 18 is rotatably supported via a pair of grooved rollers 28, 28 arranged on the base 24 to rotate the roller 28. It is configured to rotate in synchronization with the first support plate 16 by being driven.

(Regarding Support Member of Assembly Muscle and Axial Muscle) As shown in FIG. 4, one side surface of the second support plate 18 corresponds to the assembly muscle 14 and the axial muscle 12 inserted into the through hole 18b. A support member 38 for holding the assembly streak 14 and the axial streak 12 in place is provided at each position. That is, as shown in FIG. 6, a through hole 42a that points toward the center of the support plate 18 is formed in the fixing member 42 that is arranged and fixed to the second support plate 18 via the bolt 40, and the through hole 42a is formed. The shaft 44 is slidably inserted into the shaft 42a. A hook 46 is provided at an end portion of the shaft 44 that faces the center of the support plate, and a corresponding engaging groove 14 or axial bar 12 is hooked in a hook groove 46a formed in the hook 46. It is like this. A regulating member 50 is fixed to the other end of the shaft 44 through a bolt 48, and a compression spring 52 is wound around the shaft 44 facing between the regulating member 50 and the fixing member 42. By the elastic action of 52, the hook 46 is set to always urge outward in the radial direction. It is recommended that the hook 46 be provided with a stopper (not shown) so that the assembly bar 14 or the shaft bar 12 hooked in the hook groove 46a does not easily fall off.

Further, a sleeve 54 of a required length is externally inserted on the shaft 44 facing between the hanging member 46 and the fixing member 42, and the position of the hanging member 46 is determined by the length dimension of the sleeve 54. It is configured as follows. That is, the hook 46, which is constantly urged outward in the radial direction by the elastic action of the compression spring 52, is positioned with both ends of the sleeve 54 in contact with the fixing member 42 and the hook 46. .. Then, the assembly streak 14 or the axial streak 12 hooked on the hook 46 is held at a fixed position. Further, when removing the assembly bar 14 or the axial bar 12 from the hook 46, the shaft 44 is moved inward in the radial direction against the elastic force of the compression spring 52.

The means for positioning the hanging member 46 is not limited to the combination of the compression spring 52 and the sleeve 54, and for example, lever type clamping means having a toggle mechanism is used. You may do it. In this case, by tilting or raising the lever, the positioning of the hook 46 and the removal of the building muscle 14 or the axial muscle 12 from the hook 46 can be easily performed.

Further, as shown in FIGS. 1 and 2, the assembly streak 14 and the axial streak 12 supported by the respective support plates 16 and 18 are holding rings interposed at positions where they do not interfere with the second support plate 18. They are fixed to each other via 47. The retaining ring 47 has claws formed on the inner peripheral surface and the outer peripheral surface thereof, the claws corresponding to the respective assembly muscles 14 and the axial muscles 12, and each claw is “caulked” to the corresponding assembly muscles 14 or the axial muscles 12. It is configured to fix both by means of the above. That is, the axial muscle 12 is fixed via the retaining ring 47 to the assembled muscle 14 having the spiral muscles 49 bound to the outside.

(Regarding Indexing Motor) As shown in FIG. 1, one of the grooved rollers 28, 28, 28, 28 rotatably supporting the support plates 16, 18 faces the assembly streak 14. A drive shaft 56 is commonly arranged, and the rotation of the drive shaft 56 causes the four grooved rollers 28 to rotate synchronously. An end portion of the drive shaft 56 extending outward from the one first support plate 16 is rotatably supported by a bearing 60 standing on a mounting table 58 arranged on the floor. Further, the indexing motor 20 is arranged on the mounting table 58, and the belt 63 is wound around the pulley 61 arranged on the output shaft of the motor 20 and the pulley 62 arranged on the drive shaft 56. Therefore, by urging the indexing motor 20 to rotate the drive shaft 56, the support plates 16 and 18 rotate synchronously and the supporting cages 16 and 18 are reinforced. Indexing is done. In order to surely rotate the support plates 16 and 18 by the rotation of the grooved roller 28, tooth portions may be formed on the groove portion 28a of the roller 28 and the outer peripheral surfaces of the supporting plates 16 and 18, respectively.

(Regarding Bundling Tool) Next, a schematic structure of a binding tool 64 used to bind the reinforcing cage held by the assembly jig 10 according to the present embodiment will be described.

As shown in FIG. 8, the binding tool 64 feeds the clips 65 each having a shape capable of binding the assembly muscles 14 and the spiral muscles 49 toward the coupling device 66 arranged on the downstream side. The feeding device 67 for feeding out and the clip 65 fed from the feeding device 67 are gripped, and the coupling device 66 for "caulking" the clip 65, and the feeding device 67 for the coupling device 66 are at the feeding position and the standby position. It is basically composed of a moving device 68 for positioning and moving. The binding device 66 of the binding tool 64 is positioned at the intersection of the assembly muscle 14 and the spiral muscle 49, and then the clip 65 is "caulked" to bind the muscles 14, 49 together. .. The tying tool 64 is used while being movably supported within a required range by a balancer 81 suspended on, for example, an overhead traveling crane (not shown) installed at the manufacturing site of the reinforcing cage. (See FIG. 7).

(About Clip) As shown in FIG. 7, the clip 65 includes an inverted U-shaped fitting portion 65a that can fit into the spiral muscle 49 and two left and right sides of the fitting portion 65a. It has crimped portions 65b and 65b. Then, in the state where the fitting portion 65a is fitted to the spiral muscle 49, the both caulking portions 65b and 65b are "caulked" to the assembled muscle 14 so that the both muscles 14 and 49 are joined.

(Regarding Supply Device) As shown in FIG. 8, the supply device 67 of the binding tool 64 is provided with a guide member 69 on which a plurality of clips 65 can be slidably loaded in series, and the guide member 69 is attached to the guide member 69. A moving body 71 that is moved forward and backward by the air cylinder 70 is provided. An air cylinder 72 orthogonal to the air cylinder 70 is provided at the tip of the moving body 71, and an engagement pin 73 is provided on a piston rod (not shown) of the air cylinder 72. The engaging pin 73 is placed in a standby position where it does not interfere with the clip 65 loaded in the guide member 69 and an operating position where it engages with the fitting portion 65a of the clip 65 by the forward and reverse biasing of the air cylinder 72. It is set to be positioned. That is, the air cylinder 72 is biased so that the engagement pin 73 is engaged with the fitting portion 65a of the clip 65, and the air cylinder 70 is biased in the forward direction, so that the guide member 69 is loaded. The clips are transferred by a predetermined pitch toward the coupling device 66. The stroke of the air cylinder 70 is set to a size capable of sending the clips 65 to the coupling device 66 one by one.

(Regarding Coupling Device) As shown in FIG. 8, the coupling device 66 includes a pair of clipping jaws 74, 74 (only one of which is shown) arranged to be openable and closable, and an opening / closing operation of both clipping jaws 74, 74. And an air cylinder 75 for performing. The coupling device 66 and the supply device 67 are arranged so that the extending direction of the air cylinder 75 and the clip delivery direction intersect with each other, and the fitting portion 65a of the clip 65 delivered from the supply device 67 is disposed. , The air cylinder 75 is directed. Further, the air cylinder 75 is provided so that the clipping jaws 74, 74 can be closed stepwise between a gripping position for lightly gripping the clip 65 and a crimping position for "crimping" the crimped portions 65b, 65b of the clip 65. Power is controlled.

(Regarding Moving Device) As shown in FIG. 8, a moving device capable of reciprocating within a required range is provided on the outside of the air cylinder 75 constituting the coupling device 66 by another air cylinder 77 provided in the cylinder 75. A bar 76 is provided. An end portion of the moving bar 76, which faces the clipping jaw 74, is disposed and fixed to the guide member 69 of the supply device 67. Therefore, by urging the air cylinder 77 forward and backward, the moving bar 76 and the supply device 67 reciprocate within a predetermined range. The air cylinder 77 positions the supply device 67 at a supply position where the clip 65 can be supplied to the clipping jaws 74, 74 of the coupling device 66 and a standby position retracted from the clipping jaws 74, 74 to the air cylinder 75 side. It is set to a possible stroke length.

As shown in FIG. 7, the air cylinders 70, 72, 75, 77 of the respective devices 66, 67, 68 constituting the binding tool 64 have an air supply pipe 80 connected to a control device 79 to which a compressor 78 is connected. Are connected to each other. Then, by appropriately operating the operation button 64a provided on the binding tool 64, the air supply and the air supply stop are controlled by the control device 79 based on the preset order, and each device 66, 67, 68 is required. Is set to perform the operation of.

[0026]

[Operation of the embodiment]

 Next, the operation of the reinforcing cage assembly jig according to the illustrated embodiment will be described.

First, one half body 18a of each of the second support plates 18 is removed, and the other half body 18a is placed on the grooved rollers 28, 28 so that the open end of the other half body 18a is directed upward. Then, the axial reinforcement 12 is correspondingly inserted into each of the second through holes 16b formed in the first support plates 16, 16 to form a substantially cylindrical shape. At this time, the holding ring 47 is externally inserted in advance on the outside of the plurality of axial lines 12, and the holding ring 47 is provided on the ring 47 in a state where it does not interfere with the second support plate 18. The swollen nails are "caulked" on each axial muscle 12. Further, three sets of spiral muscles 49 formed by closely winding in a coil shape are externally attached to the outside of the axial muscle 12. The set of coil-shaped spiral reinforcements 49 is set to have such a length that it can be spirally wound around the assembly reinforcements 14 facing between the support plates 16 and 18 at required intervals in the axial direction.

Next, the assembly ribs 14 are correspondingly inserted into the respective first through holes 16 a formed in the first support plates 16 and 16 to form a substantially cylindrical shape, and the outside of the assembly ribs 14 is formed. So that the spiral muscle 49 faces. Further, the claws of the retaining ring 47 externally inserted on the axial reinforcement 12 are "caulked" to the corresponding assembly reinforcement 14, so that the axial reinforcement 12 and the assembly reinforcement 14 are fixed to each other.

In this way, after the assembled streak 14 and the axial streak 12 are held between the first support plates 16 and 16 in a substantially cylindrical shape, the half of the second support plate 18 and 18 which has been removed. 18a and 18a are fixed to the halves 18a and 18a supported by the grooved rollers 28 and 28 via a fixture 36. At this time, the assembly reinforcement 14 and the axial reinforcement 12 are made to face the through hole 18b of the second support plate 18. Then, the hooks 46 of the support members 38 arranged on the respective second support plates 18 are hooked on the corresponding assembly bars 14 or axial bars 12, as shown in FIG. As a result, the assembly streak 14 and the axial streak 12 inserted into the through hole 18b are held in a mutually horizontal state as shown in FIG. Further, the assembly streak 14 and the axial streak 12 inserted into the through holes 16a and 16b of each first support plate 16 are fixed by the fixing means 42. As shown in FIG. 5, the bolts 32 of the fixing means 42 are screwed into the nuts 30 facing the outside of the first support plate 16 to fix the bolts 32 to the bolts 32 via the bushes 34 and the shafts. The muscle 12 is pulled in the axial direction, and is held between the first support plates 16 and 16 in a state where the bends and the like of the muscles 14 and 12 are corrected.

As shown in FIG. 2, the spiral muscles 49, which are externally inserted into the assembly muscles 14 and are wound tightly in a coil shape, are loosened in the axial direction so that adjacent spiral muscles 49, 49 have a required pitch. The assembly lines 14 are exposed to the outside so as to be spaced.

In this state, as shown in FIG. 7, for example, the binding tool 64 is attached to the balancer 81 suspended from an overhead traveling crane (not shown) arranged at the manufacturing site of the reinforcing cage. Support. The worker holds the binding tool 64 and presses a required operation button 64a to supply the clip 65 loaded in the guide member 69 to the coupling device 66. As a result, the clip 65 is gripped by the clipping jaws 74, 74 waiting in the opened state of the coupling device 66.

Next, the operator positions the clip 65 gripped by the clipping jaws 74, 74 in the vicinity of the intersection of the assembly streak 14 of the reinforcing cage and the spiral streak 49, and the fitting portion of the clip 65 is 65a is fitted to the spiral muscle 49. Then, by pressing the operation button 64a to close both clipping jaws 74, 74 to the crimping position, the two crimping portions 65b, 65b of the clip 65 are "crimped" to the assembly line 14 as shown in FIG. The assembly muscle 14 and the spiral muscle 49 are firmly bound together.

As described above, after the worker binds the binding point (intersection between the assembly bar 14 and the spiral bar 49) facing the one side of the reinforcing cage with the clip 65 by the binding tool 64, The output motor 20 rotates each of the support plates 16 and 18 by a required angle. As a result, the unbonded binding portion faces the side facing the worker, and the worker can continue the binding work on the same side.

After binding the supporting plates 16 and 18 facing each other or the binding points facing each other between the supporting plates 18 and 18, the assembling bar 14 and the spiral bar 49 at the points facing the second supporting plate 18 are combined. In the case of binding, the supporting member 38 is removed from all of the assembling bars 14 and the axial bars 12, and the half body 18a facing the upper side of the second supporting plate 18 is removed. Then, in this state, the bundling work is performed on the bundling portion facing the position where it does not interfere with the half body 18a. Next, the support plates 16 and 18 are rotated by the indexing motor 20 to bind the remaining binding points. The spiral lines 49, 49 facing both sides of each second support plate 18 are bound together in a state of being wrapped by about one turn.

In the embodiment, the case where the base on which the first support plate and the second support plate are rotatably mounted is fixedly arranged on the floor is described, but the present application is not limited to this. Yes. For example, if each base is movably mounted on a rail, etc. and each grooved roller is spline-connected to the drive shaft, the spacing between each support plate can be changed according to the length of the reinforcing cage. Can be made Further, in this case, each base can be configured to be movable and positionable by an appropriate driving means.

[0036]

[Effect of the device]

 As described above, according to the reinforcing cage assembly assembly jig of the present invention, the assembled reinforcement can be held horizontally by the first support plate and the second support plate, so that the assembly reinforcement and the spiral reinforcement are There is no need for the operator to hold the assembly streak when binding. Also, since each support plate is configured to be rotationally indexable, the worker can perform the binding work at all the binding places by only being on one side of the reinforcing cage held by the assembly jig. The work efficiency can be improved. Further, since the binding place of the reinforcing cage can be positioned at a position where the worker can perform the binding work in a comfortable posture, there is an advantage that the labor can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of an assembly jig according to an embodiment.

FIG. 2 is a schematic side view of an assembly jig according to an embodiment.

FIG. 3 is a front view of a first support plate of the assembly jig.

FIG. 4 is a front view of a second support plate of the assembly jig.

FIG. 5 is a sectional view of an essential part showing a fixing point between a first supporting plate and an assembly bar.

FIG. 6 is a cross-sectional view of essential parts showing a state in which a support member of a second support plate and an assembly bar (axial bar) are hooked.

FIG. 7 is a schematic perspective view showing a binding tool used for binding the assembly muscle and the spiral muscle.

FIG. 8 is a schematic sectional view of a binding tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Assembly jig 14 Assembly line 16 1st support plate 18 2nd support plate 18b Through hole 20 Indexing motor 38 Support member 49 Spiral line

Claims (1)

[Scope of utility model registration request] 1. A bundle of a plurality of assembling reinforcements (14) extending substantially parallel to the circumferential direction at required intervals and a spiral reinforcement (49) spirally wound around the outside of the assembling reinforcements (14). At the time of doing, an assembly jig (10) for holding the assembly streaks (14), which is rotatably supported facing each other at a required interval.
A shaft end portion of the assembly streak (14) is rotatably supported between a pair of first support plates (16, 16) to which respective shaft ends are detachably fixed, and the first support plates (16, 16). A second support plate (18) having a through hole (18b) for allowing the insertion of all the assembly muscles (14), and the second support plate (18) is provided with the through hole (18b). Support member (38) for holding each assembly bar (14) inserted in () in place.
And a driving means (20) for synchronously rotating the respective support plates (16, 18) to perform required indexing, and a reinforcing cage assembly jig.