KR100542154B1 - Steel wire inserting apparatus - Google Patents

Abstract

By inserting the tensile steel wire into the insertion hole of the concrete bridge deck automatically by mechanical force, it is very easy to insert the steel wire, which can shorten the working time and also greatly reduce the number of workers. Disclosed is a wire inserter that can be saved.

The steel wire inserter of the present invention is freely provided on the table 1, a roller frame 13 provided on the table 1 in the insertion and transport direction of the steel wire W, and the roller frame 13 freely rotating. A plurality of support rollers 11 for supporting (W) to be guided in a straight state along the insertion conveyance direction, and freely provided on the table 1 and having a steel wire W therebetween with the support rollers 11. A driving roller 12 for pressurizing and pressing, a driving means for rotating the driving roller 12, and provided on the table 1 to adjust a distance between the supporting roller 11 and the driving roller 12; Pressing force adjusting mechanism 30, pressing force holding mechanism (40) for maintaining the pressing force applied to the steel wire within a predetermined range, and the inlet side steel wire guide for adjusting the inlet direction of the steel wire (W) corresponding to the position of the steel wire supply portion Adjusts the draw angle of the steel wire in response to the mechanism 60 and the position of the insertion target And a cutter 15 for cutting the steel wire W drawn out through the pull-out steel wire guide mechanism 70 and inserted into the insertion object.

Description

Steel Wire Inserting Apparatus}

1 is a perspective view illustrating a state in which a steel wire is inserted into an insertion hole of a general concrete bridge top plate.

2 is a perspective view of a steel wire inserter according to the present invention.

3 is an exploded perspective view of the wire inserter according to the present invention.

Figure 4 is a cross-sectional view showing the insertion drive mechanism in the steel wire inserter of the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

Figure 6 is a cross-sectional view showing a pressing force adjustment mechanism and the pressure holding mechanism in the steel wire inserter of the present invention.

Figure 7 is a plan view showing a width direction adjustment mechanism in the steel wire inserter of the present invention.

Figure 8 is a perspective view showing the inlet side wire guide mechanism in the wire inserter of the present invention.

9 is a cross-sectional view of the lead-in steel wire guide mechanism shown in FIG.

10 is a side view of the lead-in steel wire guide mechanism shown in FIG.

Figure 11a and Figure 11b is a state diagram of the operation of the pull-out steel wire guide mechanism in the wire inserter of the present invention.

12 is a plan view showing a wire cutters in a wire inserter of the present invention.

<Code Description of Main Parts of Drawing>

1: Table 10: Insertion Drive Mechanism

11: supporting roller 12: driving roller

13: roller frame 15: cutter

21: electric motor 22: hydraulic pump

23: hydraulic motor 30: pressing force adjustment mechanism

40: pressure holding mechanism 50: width direction adjustment mechanism

60: lead-in steel wire guide mechanism 70: lead-out steel wire guide mechanism

80: up and down mechanism 90: driving mechanism

W: steel wire h: spacing

The present invention relates to a steel wire inserter, and more particularly, it is possible to improve workability and reduce construction costs by inserting tensile steel wires installed in a plurality of insertion holes with a mechanical force to reinforce the top plate for concrete bridge. To a wire inserter.

In general, the top plate of the concrete bridge is to be constructed on the top of the bridge so that passers-by and vehicles can pass, and after the reinforcing bar is placed inside, it is manufactured by improving the durability by pouring concrete and curing, A tensile steel wire is provided as a means for preventing the deflection deformation caused by the load and the occurrence of cracking caused by this deflection deformation and to reinforce it more safely.

That is, as shown in FIG. 1, a plurality of insertion holes 102 formed in the longitudinal direction in the concrete bridge top plate 101 are provided in the width direction (usually 9-12), and the insertion holes 102 are tensioned. After inserting the steel wire (W), by applying a tensile force from both sides to fix both ends of the tensile steel wire (W) is installed the top plate 101 in a state where the tensile force is maintained.

Conventionally, since the apparatus for inserting the tensile steel as described above was not provided, it was dependent on the labor force of the worker, and the tip of the tensile steel was put in the insertion hole and several people gathered and pushed the force.

Tensile wires are usually quite heavy because they are made of many strands of metal wire with high tensile strength and are very thick. Therefore, it is very difficult and difficult to insert the tensile steel wire into the top plate having a length of about 30m, and not only the working time is long, but also requires a large number of working people, which causes a problem of raising the construction cost.

The present invention is to solve the above problems of the prior art, the object is to insert a steel wire into the insertion hole of the insertion target, such as inserting a tensile steel wire in the insertion hole of the bridge top plate work by mechanical power It is very easy to shorten the working time, and also to provide a steel wire inserter that can significantly reduce the number of workers to reduce the construction cost.

In order to achieve the above object, the present invention provides a table, a roller frame provided in the insertion conveying direction of the steel wire long on the table, and freely provided on the roller frame to guide the steel wire in a straight state along the insertion conveying direction. The steel wire inserter includes a plurality of support rollers to support, a drive roller freely provided on the table, and a driving roller to press and press the steel wires together with the support rollers, and a driving means to rotate the driving rollers.

In addition, the present invention is characterized in that the steel wire inserter is provided on the table further comprises a pressing force adjusting mechanism for adjusting the distance between the support roller and the drive roller.

In addition, the present invention is characterized in that the steel wire inserter further comprises a pressing force holding mechanism for maintaining the pressing force applied to the steel wire within a predetermined range by varying the interval between the support roller and the driving roller according to the pressing force applied to the steel wire.

In addition, the present invention is provided on the steel wire inlet side of the table is provided on the side of the steel wire guide mechanism for adjusting the inlet direction of the steel wire in response to the position of the steel wire supply portion, and the steel wire lead-out side of the table corresponding to the position of the insertion The steel wire inserter further includes a pull-out steel wire guide mechanism for adjusting the draw angle of the steel wire.

In addition, the present invention is characterized in that the steel wire inserter which is provided in the lead-out steel wire guide mechanism, and further provided with a cutter for cutting the steel wire drawn out through the lead-out steel wire guide mechanism inserted into the insertion object.

In addition, the present invention is a steel wire inserter further comprises a pedestal provided in the lower portion of the table, and between the table and the pedestal further comprises a table lifting, lowering mechanism for adjusting the height of the table corresponding to the height of the steel wire insertion target There is a characteristic.

In addition, the present invention is characterized in that the steel wire inserter further comprises a traveling mechanism for carrying the table and the lifting, lowering mechanism.

BEST MODE Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 are a perspective view and an exploded perspective view showing a wire inserter according to the present invention, the wire inserter of the present invention, for example, the insertion drive mechanism for pulling and moving the steel wire (W) of diameter 12.7mm or 15.5mm ( 10), the insertion drive mechanism (10) is provided on the table (1) to rotate freely and to support a plurality of support rollers (11) and drive rollers (12) for pressing the steel wire (W) up and down, and It consists of a drive means for rotating the drive roller 12.

The plurality of support rollers 11 are made of a metal material, and are arranged at regular intervals in a roller frame 13 having a substantially U-shaped cross-sectional shape formed long in a straight line as shown in FIGS. 4 and 5. Rotating freely installed around the rotating shaft 11a disposed at right angles to the longitudinal direction of the frame 13, a holding groove 11b is formed in which a portion of the steel wire W is inserted and guided to an outer circumferential surface thereof. It is to hold and support (W) in a straight state.

The plurality of driving rollers 12 are for generating a frictional force by pressing the steel wire (W) supported in the holding groove (11b) of the support roller 11, to move the steel wire (W) by this friction force, Outer peripheral surface is spaced apart from the outer peripheral surface of the support roller 11 at a predetermined interval (h) is disposed on the upper portion of the support roller 11, the drive box 14 provided in the vertical direction to the table (1) Rotating freely around the drive shaft 14a disposed in the same direction as the rotation shaft 11a of the support roller 11 therein, the pair of sprocket wheels 14b and 14c provided on the drive shaft 14a and connecting them This is interlocked by the chain 14d.

At this time, the driving roller 12 is preferably made of a rubber material having a concave-convex shape on the surface in order to increase the frictional force with the steel wire (W), in this embodiment is arranged five support rollers 11, driving roller ( 12 is larger than the supporting rollers 11, and arranged two, but is not limited to the number of installation and the diameter size, the support rollers 11 and the driving rollers 12 are arranged in the same number, Only one driving roller 12 may be installed.

As shown in FIGS. 2 and 3, the driving means for rotating the driving roller 12 includes an electric motor 21 and a hydraulic pump 22 generating hydraulic pressure by the rotational force of the electric motor 21. The hydraulic motor is configured to receive hydraulic pressure from the hydraulic pump 22 and rotate the driving shaft 14a of the driving roller 12.

In addition, the present invention, the pressing force adjusting mechanism 30 for adjusting the interval h between the support roller 11 and the drive roller 12 of the insertion drive mechanism 10, the support roller 11 and the drive roller ( And a width direction control mechanism 50 for moving the support roller 11 in the width direction perpendicular to the line feed direction.

3 and 6, the pressing force adjustment mechanism 30 is connected to both sides of the roller frame 13 through the pressing force holding mechanism 40 and forms through holes 31a in the vertical direction at both ends thereof. Four fixing brackets 31 and four screw rods 32 fixed to the four corners of the table 1 side and penetrating through the through holes 31a of the fixing brackets 31 in the vertical direction. It is composed of the upper and lower nuts (34a, 34b) and the fixing support (33), the upper and lower screws of the fixing bracket 31 and the screw rods 32 to maintain the fixing bracket 31 at any height. The upper and lower nuts 34a and 34b are adjusted to set the height of the roller frame 13 so that the distance h between the supporting roller 11 and the driving roller 12 is adjusted. .

The pressing force holding mechanism 40 is a guide block 41 which is fixed to both ends of the roller frame 13 and has a guide hole 41a formed in the width direction perpendicular to the conveying direction of the steel wire W; A guide rod 42 inserted into the guide hole 41a to guide the widthwise transfer of the guide block 41, and a lower end portion is fixed to both ends of the guide rod 42, and an upper end portion penetrates the fixing bracket 31; It consists of a support rod 44 elastically installed by the coil spring 43, the coil spring 43 is elastically stretched in accordance with the pressing force applied to the steel wire (W) the support roller 11 and the drive roller 12 It is comprised so that the pressing force applied to the steel wire W may be maintained in a fixed range by varying the space | interval h between ().

The width direction adjustment mechanism 50 extends in the width direction to the guide block 41 guided in the width direction by the guide rod 42 and the middle side surface of the roller frame 13 as in FIGS. 3 and 7. It is formed freely and rotatably installed on the table (1) and the adjusting rod (52) having a fixed rod (51) having a female threaded portion (51a), a male threaded portion (52a) screwed to the female threaded portion (51a). It consists of a handle 53 for rotating the adjustment rod 52, the roller frame 13 by screwing the female screw portion 51a and the male screw portion 52a by the forward and reverse rotation of the handle 53 ) Is configured to be transported in the width direction along the guide rod 42. At this time, the support portion 53a of the handle 53 is guided to the support portion 1a of the table 1 so as to move up and down with respect to the up and down movement of the roller frame 13.

In addition, the present invention is provided on the steel wire inlet side of the table 1, as shown in Figures 1 and 2 and the inlet side steel wire guide mechanism 60 for adjusting the steel wire inlet direction from the steel wire supply unit (not shown), and A lead-out steel wire guide mechanism 70 is provided on the steel wire lead-out side of the table 1 and adjusts the steel wire lead-out angle so as to guide the steel wire W toward the insertion hole formed in the upper plate of the bridge.

As shown in Figs. 8 to 10, the inlet-side steel wire guide mechanism 60 includes a cylindrical portion 61 rotatably provided in the inlet-side guide block 41 of the roller frame 13 and the cylindrical portion 61. Guide roller for guiding the fixed-in angle control bracket 62 and the steel wire W supplied from the steel wire supply part freely installed at the end of the angle-entering bracket 62 fixedly integrally to the inlet side support roller 11. (63), and the inlet angle holding means for maintaining the inlet angle adjustment bracket 62 in the rotationally adjusted position, the inlet angle holding means is outside the cylindrical portion 61 of the inlet angle adjustment bracket 62 A plurality of retaining holes 61a are formed on the circumferential surface, and through holes 61b are formed on the guide block 41 side to pass through holes 61b through the retaining pins 64 to hold the retaining holes 61a. By inserting it into the

The lead-out steel wire guide mechanism 70, as shown in Figs. 3 and 11, is installed in the vertical direction on the table 1 on the draw-out side and rotated by a hinge portion 71 to be freely rotated by a predetermined angle. And a drawing angle adjusting bracket 74 made up of a supporting plate 73 extending in the drawing direction of the steel wire W from the rotating plate 72, the first and the first being made to the supporting plate 73 of the drawing angle adjusting bracket 74; The guide rollers 75a and 75b are freely installed so as to guide the steel wires W drawn out from the support rollers 11 on the pull-out side to the insertion holes formed in the upper plate of the bridge to be inserted. In addition, a handle 77 on which a screw rod 76 having a male screw portion 76a is fixed to the top of the rotating plate 72 of the drawing angle adjusting bracket 74 is rotatably installed, and a support 78 on the side of the table 1 is provided. ) Is a configuration in which a fixing rod 79 having a female threaded portion 79a fitted to the screw rod 76 is installed.

At this time, the fixing part 77a of the handle 77 and the upper end of the rotating plate 72 are rotatably connected at a predetermined angle with the pin 72a, and the fixing rod 79 and the support 78 are predetermined with the pin 78a. The handle 77 and the fixing rod 79 are interlocked at a predetermined angle so as to be rotatably connected to the angle so as to correspond to the rotation angle of the rotating plate 72.

On the other hand, the present invention, as shown in Figs. 2 and 3, by adjusting the height of the table 1 to set the insertion height of the steel wire (W) table lifting, lowering mechanism 80, the table (1) and lifting, Cutter 15 for cutting the steel wire (W) drawn out through the traveling mechanism 90 for mounting and transporting the lowering mechanism 80 and the draw-out steel wire guide mechanism 70 inserted into the upper plate of the bridge to be inserted Equipped with more.

The table raising and lowering mechanism 80 is provided with a pedestal 81 at the bottom of the table 1, and is provided with a lifting and lowering means between the table 1 and the pedestal 81, the lifting means A pantograph 82 is used. The pantograph 82 has a pair of first and second link assemblies 83 and 84 connected to each other in a trapezoidal form with rollers 83a and 84a guided in a linear direction to the table 1 and the pedestal 81 on one side thereof. ) And a support bar 85 connecting the first and second link assemblies 83 and 84, and between the support bar 85 and the pedestal 81 to support the end of the cylinder rod 86a. It is composed of a drive cylinder 86 fixed to the bar 85 and the fixed end is fixed to the pedestal 81, the cylinder rod 86a of the hydraulic cylinder supplied from the hydraulic pump 22 is transferred to the front, By moving backward, the pantograph 82 is folded or unfolded so that the insertion height of the steel wire W can be adjusted corresponding to the insertion object by raising and lowering the table 1 with respect to the pedestal 81.

The driving mechanism 90 is provided before and after the pedestal 81 and is driven to rotate the front and rear wheels 93 and 94 and the front and rear wheels 93 and 94 connected to the respective drive shafts 91 and 92. Means, and steering means for adjusting the driving direction of the front and rear wheels (93, 94), the drive means is a hydraulic motor (95) provided on the rear wheel 94 side, the hydraulic motor (95) A drive gear part (96) with a built-in drive gear (not shown) for rotating the rear wheel drive shaft (92), and a pair of sprocket wheels (99a, 99b) for transmitting the power of the hydraulic motor to the drive gear part (96); It consists of a chain 99c, and a steering means consists of the steering lever 97 connected to the front wheel 93, and the steering handle 98 for operating this steering lever 97. As shown in FIG.

3 and 12, the cutter 15 is installed at the end of the support plate 73 of the lead-out steel wire guide mechanism 70, rotated by the electric motor 15a and the second guide roller 75b. It is provided with the cutter 15b located adjacent to, and it is comprised so that the steel wire W inserted in the insertion object can be cut | disconnected.

The operation of the steel wire inserter configured as described above is as follows. First, as shown in FIGS. 2 to 5, when the power is applied to the electric motor 21 to drive the hydraulic pump 22, the hydraulic pressure generated by the hydraulic pump 22 causes the hydraulic branch valve (not shown). The driving roller 12 which is transmitted to the hydraulic motor 23 through the drive of the hydraulic motor 23 rotates around the drive shaft 14a by the sprocket wheels 14b and 14c and the chain 14d. .

In this state, the start end of the steel wire W supplied from the steel wire supplying part is guided to the guide roller 63 of the lead-in steel wire guide mechanism 60 and the support roller 11 on the lead-in side to support the driving roller 12 and the support roller 11. When inserted into the gap h between the rollers 11, the steel wire W is pulled and moved by the contact frictional force with the steel wire W by the pressure of the driving roller 12 made of rubber material, Guide rollers 11 and the leading and second guide rollers 75a and 75b of the lead-out steel wire guide mechanism 70 are led out and drawn out. Then, the starting end of the steel wire W is formed on the upper plate of the bridge to be inserted. When inserted into the insertion hole, the steel wire W can be inserted into the insertion hole of the upper plate by mechanical force, and after the insertion, the steel wire W is quickly and easily inserted by cutting the steel wire W with the cutter 15b of the cutter 15. The task is complete.

In addition, the present invention can adjust the height of the fixing bracket 31 by loosening and tightening the upper and lower nuts (34a, 34b) screwed to the screw rod 32 of the pressing force adjustment mechanism 30 as shown in FIG. Since the height of the roller frame 13 connected through the supporting rod 44, the guide rod 42, and the guide block 41 of the pressing force holding mechanism 40 is adjusted, the supporting roller is according to the thickness of the steel wire W. The interval h between the drive roller 12 and the drive roller 12 can be adjusted, and the pressing force of the steel wire W can be increased or decreased.

In addition, according to the pressing force holding mechanism 40, when a pressing force greater than the compressive force of the coil spring 43 acts between the supporting roller 11 and the driving roller 12, the coil spring 43 is compressed while the supporting rod 44 Since the roller frame 13 connected by the guide rod 42 and the guide block 41 is lowered, the distance h between the support roller 11 and the driving roller 12 is widened, thereby increasing the steel wire W. When the pressing force applied to the coil spring 43 is reduced, and the pressing force is smaller than the compressive force of the coil spring 43, the support rod 44 is raised again by the elastic restoring force of the coil spring 43 to raise the roller frame 13. Therefore, the interval h between the support roller 11 and the drive roller 12 is narrowed to increase the pressing force applied to the steel wire W. By the action of the coil spring 43 as described above, the pressing force applied to the steel wire W can be maintained within a predetermined range.

In addition, as shown in FIG. 7, when the handle 53 is rotated in the forward and reverse directions by the width direction adjustment mechanism 50, the male thread portion 52a of the adjustment rod 52 and the female thread portion of the fixing rod 51 ( Since 51a) is screwed, the roller frame 13 moves along the guide rod 42 in the width direction. Therefore, the contact portion of the steel wire (W) guided to the support roller 11 and the drive roller 12 can be changed in the width direction to prevent the contact portion of the drive roller 12 from being unevenly worn.

8 to 10, when the inlet-side steel wire guide mechanism 60 rotates the cylindrical portion 61 and the inlet angle adjustment bracket 62 (see the virtual line state in FIG. 10), the guide Since the steel wire guide angle of the roller 63 is changed, the pulling direction of the steel wire W can be adjusted according to the position of the steel wire supplying part, and the holding hole formed in the outer circumferential surface of the cylindrical portion 61 in the state of adjusting the pulling angle ( When the retaining pin 64 is inserted to match the through hole 61b formed at the side of 61a) and the guide block 41, the inlet angle of the steel wire W can be adjusted.

11A and 11B, when the handle 77 is rotated in the forward and reverse directions by the pull-out steel wire guide mechanism 70, the male screw portion 76a and the fixed rod 79 of the screw rod 76 are rotated. Since the female screw portion 79a of the screw is screwed, the rotating plate 72 is rotated by a predetermined angle around the hinge portion (71). Therefore, the withdrawal angles of the steel wires W guided by the first and second guide rollers 75a and 75b provided on the support plate 73 can be adjusted in accordance with the position of the insertion hole formed in the upper plate of the bridge to be inserted. The fixing part 77a of the 77 and the rotating plate 72 are connected to the pin 72a, and the fixing rod 79 is connected to the support 78 with the pin 78a, thereby corresponding to the change of the adjustment angle of the support plate 73. The predetermined angle in the direction of the arrow.

In addition, as shown in FIGS. 2 and 3, when the lifting and lowering mechanism 80 supplies the hydraulic pressure generated from the hydraulic pump 22 to the drive cylinder 86 to move the cylinder rod 86a forward and backward, Since the upper and lower rollers 83a and 84a are guided to the table 1 and the pedestal 81, the pair of first and second link assemblies 83 and 84 connected by the support bar 85 are expanded or folded. The height of the table 1 can be adjusted according to the position of the steel wire supply portion and the height of the insertion object. The traveling mechanism 90 supplies the hydraulic pressure generated from the hydraulic pump 22 to the hydraulic motor 95. When driven by the drive gear 96, the rear wheel 94 is rotated through a drive gear (not shown) built in the drive gear 96, and the steel wire inserter can be freely moved by manipulating the steering wheel 98 to adjust the driving direction. have.

The present invention is not limited to the embodiments described so far, and various changes, modifications, or substitutions may be made by those skilled in the art within the technical idea and the claims of the present invention. It should be understood that it belongs to the scope of the invention.

As described above, according to the steel wire inserter according to the present invention, since the work of inserting the tensile steel wire into the insertion hole of the bridge top plate is automatically made by mechanical force, the wire wire inserting operation is very easy to shorten the working time. In addition, it is also a useful invention that can significantly reduce the number of working personnel to reduce the construction cost.

Claims (8)

Table; A roller frame installed long on the table in the insertion and feeding direction of the steel wire; A plurality of support rollers freely provided on the roller frame to support the steel wires in a linear state along the insertion conveying direction; A drive roller freely provided on the table and configured to press the steel wire together with the support roller to press the steel roller; In the steel wire inserter comprising a drive means for rotating the drive roller, The support roller 11 and the driving roller on the table 1 are composed of a fixing bracket 31, a screw rod 32, and upper and lower nuts 34a and 34b for maintaining the fixing bracket 31 at an arbitrary height. A pressing force adjusting mechanism 30 for adjusting the interval between the 12; A guide block 41 fixed to both ends of the roller frame 13, a guide rod 42 inserted into the guide hole 41a of the guide block 41, and a lower end thereof is fixed to both ends of the guide rod 42. A pressing force holding mechanism 40 whose upper end portion is formed of a supporting rod 44 elastically installed with the coil spring 43 through the fixing bracket 31 to maintain the pressing force applied to the steel wire W within a predetermined range; The guide block 41 is composed of a cylindrical portion 61 freely rotated, a pulling angle adjusting bracket 62 fixed to the cylindrical portion 61, a steel wire guide roller 63 and a pulling angle holding means. An inlet side steel wire guide mechanism 60 for adjusting the inlet direction; The rotating plate 72 rotated by the hinge portion 71 by a predetermined angle, the first and second guide rollers 75a and 75b installed on the drawing angle adjusting bracket 74, and the handles on which the screw rods 76 are fixed. A drawer-side steel wire guide mechanism 70 for adjusting the draw angle of the steel wire W by a 77 and a fixed rod 79 having a female threaded portion; A cutter (15) provided in the lead-out steel wire guide mechanism (70) to cut the steel wire; Table raising and lowering mechanism 80 for adjusting the height of the table by the pantograph 82; And A traveling mechanism (90) for mounting and transporting the table (1) and the raising and lowering mechanism (80); Liner inserter comprising a delete delete delete delete The method of claim 1, The plurality of support rollers 11 are arranged on the roller frame 13 at regular intervals, and are freely rotated about the rotation shaft 11a, and the holding grooves 11b having a concave shape are formed on the outer circumferential surface. Liner inserter. The method of claim 1, The table raising and lowering mechanism 80 includes a pair of first and second link assemblies connected to one side of the table 1 and a pedestal 81 by rollers 83a and 84a guided in a linear direction. 83 and 84, support bars 85 for connecting the first and second link assemblies 83 and 84, and between the support bars 85 and the pedestal 81, Steel wire inserter, characterized in that the end is fixed to the support bar (85) and the fixed end comprises a drive cylinder (86) fixed to the pedestal. The method of claim 1, The traveling mechanism 90 is provided before and after the pedestal 81 and is connected to the driving shafts 91 and 92 by the front and rear wheels 93 and 94 and the rear wheel driving shaft 92 by the hydraulic motor 95. A drive gear part 96 with a built-in drive gear for rotating the gears, a pair of sprocket wheels 99a and 99b and a chain 99c for transmitting the power of the hydraulic motor 95 to the drive gear part 96; Steel wire inserter comprising a steering means for adjusting the driving direction of the.

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