KR101005407B1 - Iron bar tying apparatus - Google Patents

Abstract

The present invention relates to a reinforcing bar binding device used to arrange reinforcing bars before tying concrete and to tie and cross the reinforcing bars as wires. More specifically, the motor includes a main body in which a rotating shaft protrudes outwards. ; A connecting shaft connected to the rotating shaft and having a first fastening portion formed at a front end thereof and having a first flange portion protruding at a rear side thereof; A second flange is inserted into the connecting shaft and protrudes at the rear end, and is supported by an elastic body installed to abut on the first flange, and the front end is provided with an expansion pipe having an enlarged inner diameter. A second fastening portion is formed and an inner diameter surface is formed with an inner diameter taper portion whose inner diameter decreases toward the rear side, and an outer surface of the section between the second flange portion and the expansion pipe portion is made up of a locking section which is reduced in outer diameter and recessed; A fixed bundle which is partially inserted into the expansion pipe and fixedly coupled to the first fastening portion, wherein an outer diameter taper is formed from a rear end to a partial section and is formed of a cylindrical body in front of the outer diameter taper; An induction cap configured to be constrained at the second fastening portion to surround the cylindrical body portion of the fixed bundle, and a plurality of dividing grooves formed at the front end portion; It is installed in the hooking section is connected to the trigger bundle coupled to the main body is a force pulling device to transfer the force in accordance with the operation of the trigger to move the movable back rear; reinforcing bar binding device characterized in that it comprises a .

Rebar, binding device, wire, turn, trigger, movable bundle, fixed bundle, guide cap

Description

Reinforcing bar binding device {Iron bar tying apparatus}

The present invention relates to a reinforcing bar binding apparatus used to arrange reinforcing bars before tying concrete and to bind and restrain intersecting bars as wires.

When constructing a concrete building or various structures, a large amount of reinforcement is essentially used, and binding work is performed at the intersection of reinforcing bars as thin wires so that neighboring rebars can be held in place.

This reinforcing bar binding work is generally performed by a number of workers using a tool such as a hook, bends the wire into the intersection of the reinforcing bars and then tightened the wire by several rotational movements so that the bars can be mutually constrained. . Therefore, the work takes a long time and there is a significant difference in the accuracy of the work according to the skill of each worker.

On the other hand, in the reinforcing bar binding work using a hook that is currently carried out in the field is bent in a U-shape with a double wire and placed at the intersection of the reinforcing bars and the hook is rotated by rotating the hook to make the wire twist.

Therefore, there is a problem that the wire is consumed twice because the wire should be used twice as a method for using the hook, and it is necessary to bend easily by using the double wire. There was also a problem in that it had to be processed to bend.

In view of such a problem, a number of devices are known which can perform reinforcing bars more easily and quickly.

Representative patent applications Nos. 10-1999-0006226, 10-1994-026496, 10-2004-7004183 and the like, and the utility model utility application number 20-2003-0025320 is also known. In addition, many devices for binding bars have been disclosed, but most of them have not been commercialized due to the complexity of the structure or inconvenience in using.

Accordingly, the present invention is to provide a reinforcing bar binding device that is compact and lightweight so that it can be used while holding with one hand, and also provides a rebar fastening device that is highly structurally easy to use due to its low probability of failure and easy assembly and disassembly. That is another task.

Another object of the present invention is to provide a reinforcing bar binding device capable of binding as a single wire to minimize the consumption of wire for reinforcing bars.

The present invention for achieving the problem as described, the motor is built-in and the rotating shaft protrudes to the outside; A connecting shaft connected to the rotating shaft and having a first fastening portion formed at a front end thereof and having a first flange portion protruding at a rear side thereof; A second flange is inserted into the connecting shaft and protrudes at the rear end, and is supported by an elastic body installed to abut on the first flange, and the front end is provided with an expansion pipe having an enlarged inner diameter. A second fastening portion is formed and an inner diameter surface is formed with an inner diameter taper portion whose inner diameter decreases toward the rear side, and an outer surface of the section between the second flange portion and the expansion pipe portion is made up of a locking section which is reduced in outer diameter and recessed; A fixed bundle which is partially inserted into the expansion pipe and fixedly coupled to the first fastening portion, wherein an outer diameter taper is formed from a rear end to a partial section and is formed of a cylindrical body in front of the outer diameter taper; An induction cap configured to be constrained at the second fastening portion to surround the cylindrical body portion of the fixed bundle, and a plurality of dividing grooves formed at the front end portion; Reinforcing bar binding device characterized in that it comprises a; is installed in the engaging section and connected to the trigger bundle coupled to the main body and the force is transmitted according to the operation of the trigger to move the movable bundle rearward; Suggest.

Preferably, the induction cap further includes a circular induction tip surrounding the division groove at the front end, and the division groove proposes a reinforcing bar binding device, wherein a plurality of the division grooves are continuously cut in a V-shape. .

Preferably the trigger bundle is provided with a pinhole for coupling the trigger to the pin at the rear end, the front end is provided with a reinforcing bar binding device characterized in that the induction tunnel is opened for inducing a linear movement of the movable pull body Suggest.

Preferably, the movable pull body, the horizontal movable rod is inserted into the induction tunnel; Y-shaped connector coupled to the front end of the horizontal movable rod toward the upper side; It proposes a reinforcing bar binding apparatus comprising a; a rolling body coupled to the left and right inner side of the upper end of the connector is caught by the second flange.

Preferably, the horizontal moving rod is connected to the trigger and the wire is proposed to the reinforcing bar binding apparatus characterized in that the horizontal movement is pulled backward when the trigger is operated.

More preferably, a switch is formed on the outer surface of the main body to operate the motor, and the trigger is positioned to face the switch and proposes a reinforcing bar binding device configured to be switched on when the trigger is pulled.

Reinforcing bar binding apparatus according to the present invention has the effect that the workers can quickly and easily handle the wire bundle work for restraining the reinforcing bars in the workplace.

In addition, it is possible to easily work even for beginners because it reduces the fatigue of the operator because it is compact and lightweight and bundles the wire while automatically rotating.

Based on the technical spirit of the present invention will be described in detail through a more specific embodiment. However, the accompanying drawings of the present embodiments show one possible example of the present invention, such as modifications such as simple structural changes by others or replacement of some components by equivalent elements. It should be understood to be included in the scope of the present invention.

Normally, rebars are staggered at right angles, crossing each other up and down, and the wires are tied to each intersection to bind the bars to maintain a constant distance. In particular, the present invention relates to a reinforcing bar binding device configured to be able to bind the wire while twisting the wire while automatically rotating as the user pulls the wire by bending the wire in a U shape.

The main basic components of the reinforcing bar binding apparatus according to the present invention, the main body 100, the connecting shaft 200, the movable bundle 300, the fixed bundle 400, the induction cap 500 and the movable pull body 600 Included, Figure 1 is a schematic perspective view showing a reinforcing bar binding apparatus according to an embodiment of the present invention, Figure 2 shows an exploded perspective view, Figure 3 is a combination of a movable bundle, a fixed bundle and an induction cap Corresponds to the cross section showing the status.

As shown in the figure, the main body 100 preferably has a diameter that can be gripped by a worker in the form of a long rod, and a motor (not shown) is built therein to rotate by electricity supply. In addition, the front end of the main body 100 has a rotating shaft 110 is transmitted to the rotational force of the motor is transmitted, so that the switch 120 for operating the drive of the motor at any one of the outer surface of the main body 100. The switch 120 drives the motor only when an external force is applied and is pressed, and it is suitable to use a type of stopping the motor when the external force is removed.

The connecting shaft 200 is coupled to the rotating shaft 110 protruding from the main body 100 on the same axis, the coupling of the rotating shaft 110 and the connecting shaft 200 is to form a detachable structure selectively desirable. The coupling structure of the rotating shaft 110 and the connecting shaft 200 is sufficient to select one of the known shaft connecting method. A first fastening portion 210 is formed at the front end of the connecting shaft 200, and a protruding first flange portion 220 is formed near the rear end, and the first fastening portion 210 is a male screw. This is preferred.

The movable bundle 300 is fitted from the front end of the connecting shaft 200, and the movable bundle 300 is supported by the elastic body 230 that is first fitted to the connecting shaft 200. As shown in the present embodiment as the elastic body 230, the coil spring is used, one end of the coil spring is in contact with the first flange portion 210, the other end is made of a movable bundle 300 The two flanges 320 abut. The movable bundle 300 may be moved along the connecting shaft 200 due to the elastic body 230.

When the coil spring is used as the elastic body 230, the rounded washers 240 are disposed at both ends of the coil spring so that the end portions of the coil springs do not directly contact the first flange portion 220 or the second flange portion 320. It is preferable to configure in the form which does not.

A more detailed structure of the movable bundle 300 is as described below.

The movable bundle 300 has a through hole 301 opened along the axial direction at the center thereof so as to be fitted to the connecting shaft 200, and a second flange portion 320 is provided at the rear end and the front end thereof. An extension tube 310 is formed in the section between the second flange portion 320 and the expansion tube 310, and the outer diameter is reduced to become a locking section 330 recessed concave.

The second flange portion 320 is in contact with one end of the elastic body 230 and the expansion pipe portion 310 has an inner diameter enlarged to a predetermined depth. The inner diameter surface of the expansion tube 310 is formed obliquely inclined to decrease the inner diameter toward the rear to form the inner diameter taper portion 311, and a second fastening portion 312 is formed from an outer surface end of the expansion tube 310. . The second fastening portion 312 is also suitable to be a male screw like the first fastening portion 210. The locking section 330 is a recessed section and is formed to reduce an outer diameter of the expansion pipe 310 or the second flange 320. As will be described later, the locking section 330 is coupled to the movable pull body 600 is required to allow the movable bundle 300 to be retracted backward by the action of an external force.

It is inserted through the expansion tube 310 provided in the movable bundle 300 has a fixed bundle 400 as an element fixed to the first fastening portion 210 formed on the distal end of the connecting shaft 200. The fixed bundle 400 is installed to protrude forward than the end of the movable bundle 300 and has a cylindrical portion having a constant outer diameter by a predetermined distance from the front, and has an outer diameter taper portion 410 whose outer diameter gradually increases from the rear. . The outer diameter tape portion 410 is preferably to have a sectional distance enough to achieve a state inserted into the expansion tube (310).

More preferably, a plurality of protruding guide pins 420 are placed on the front end of the fixed bundle 400. The guide pins 420 are suitably arranged in a circular shape while maintaining a constant distance, and these guide pins 420 are hooked between the guide pins 420 adjacent to each other when the wires are restrained as actual wires. The function of the rear twisting can be performed smoothly.

The fixed bundle 400 inserted into the expansion tube 310 of the movable bundle 300 and fixed to the connecting shaft 200 protrudes longer than the end of the movable bundle 300, and the outer surface of the fixed bundle 400 protrudes. The induction cap 500 is coupled to the second fastening portion 312 of the movable bundle 300 while wrapping. In particular, a plurality of split grooves 510 are formed at the front end of the induction cap 500, and are coupled to the second fastening part 312, so that the rear end portion of the induction cap 500 has a male screw part. A female screw portion 520 is formed to fit the second fastening portion 312.

Preferably, the plurality of split grooves 510 are arranged in a circular shape while maintaining a predetermined interval. In the present embodiment, the divided grooves 510 are cut in a V-shape. And more preferably it is suitable to further install a circular guide tip 530 surrounding the split groove 510 at the front end of the guide cap 500. The dividing groove 510 is a portion in which the bent wire strand is inserted in a U-shape, and a detailed operation relationship will be described later.

Another element constituting the reinforcing bar binding apparatus according to the present invention is a movable pull body 600, the movable pull body 600 is moved to the rear in accordance with the operation of the trigger 710 movable bundle 300 By transmitting a force to the movable bundle 300 is to function to be moved to the rear.

Trigger bundle 700 for the installation of the trigger 710, etc. is coupled to the front portion of the main body 100, a fastening ring 701 is provided for connecting to the main body 100 and the fastening ring 701 is upwards It forms a protruding form. A pinhole 702 is formed for coupling the trigger 710 to the lower side than the fastening ring 701, and an induction tunnel 703 for inducing linear movement of the movable pull body 600 is provided. The pinhole 702 is located at the rear end of the trigger bundle 700, the induction tunnel 703 is located at the front end, by positioning the trigger 710 in the pinhole 702 portion by coupling the trigger ( 710 may be rotated. The guide tunnel 703 is a portion of the movable pull 600 is inserted into the through hole.

More specifically, the movable pull body 600 includes a horizontal movable rod 610, a connector 620, and a rolling body 630, and the horizontal movable rod 610 is a long rod-shaped member inserted into the induction tunnel 703. to be. The connector 620 is coupled to the front end of the horizontal movable rod 610, the connector 620 is to form a Y-shape, one cloud 630 is coupled to the left and right inner surface of the upper end of the connector 620. . The rolling body 630 is a bearing to be rotated to form a coupling structure in contact with the second flange portion 320 of the movable bundle 300. On the other hand, the trigger 710 and the horizontal movable rod 610 of the movable pull body 600 are connected to each other by a wire 640, when the user presses the trigger 710, the wire 640 is pulled while the movable pull body ( 600) to be moved backwards. When the movable pull body 600 is moved to the rear, the rolling body 630 is pulled back to the movable bundle 300 while being in contact with the second flange portion 320 and at the same time supports the movable bundle 300 The elastic body 230 is in a compressed state.

The rolling shaft 631 and the connecting shaft 200 of the rolling body 630 are orthogonal to each other, so when the movable bundle 300 is rotated together with the connecting shaft 200, the second of the movable bundle 300 is formed. The rolling body 630 in contact with the flange 320 is rotated with respect to the second flange 320. That is, the movable pull body 600 forms a coupling structure that does not interfere with the rotation of the movable bundle 300 even when the movable bundle 300 is pulled and moved rearward.

In configuring the reinforcing bar binding apparatus of the present invention, more preferably, the operation of the switch 9120 protruding on the outer surface of the main body 100 may be simultaneously performed according to the operation of the trigger 710. To this end, the rear end of the trigger 710 facing the switch 120 is positioned so that when the trigger 710 is pulled as far as possible, the trigger 710 is brought into contact with the switch 120 to press the switch. Configure.

The components constituting the reinforcing bar binding apparatus of the present invention have been described above. Hereinafter, specific operating relations performed by the combination of these components will be described.

For the reinforcing bar binding work, first prepare a wire bent in a U shape (W) to walk at the intersection of the reinforcing bars to push both ends of the wire into the split groove 510 formed in the induction cap (500). When inserting a wire into the split groove in a position facing each other among the plurality of split grooves 510 and pushes the wire into the split groove 510 as much as possible expansion portion of the movable bundle 300 along the outer surface of the fixed bundle 400 Up to 310, the sock end of the wire W is reached.

3 is a cross-sectional view showing a coupling state of the movable bundle, the fixed bundle, and the induction cap, and shows how the sock end of the wire W inserted through the split groove 510 may be fixed. The inner diameter taper portion 311 is present on the inner diameter surface of the expansion pipe portion 310, and the outer diameter taper portion 410 is formed on the fixed bundle 400 positioned in the expansion pipe portion 310, and the wire W is inserted therein. When only the movable bundle 300 in the state is moved to the rear, the sock end portion of the wire (W) due to the inner diameter taper portion 311 and the outer diameter taper portion 410 is put in a state of being fixed. In other words, the outer diameter taper portion 410 and the inner diameter of the fixed diameter bundle 400 are retracted by the inner diameter taper portion 311 formed in the expansion portion 310 of the movable bundle 300 in a fixed state. As the space formed between the tapered portions 311 is narrowed, the wire W may be fixed.

As the retraction operation of the movable bundle 300 pulls the trigger 710, the force is transmitted to the movable pulling body 600 connected by the wire 640, so that the movable pulling body 600 rears the movable bundle 300. To be moved. Of course, when the trigger 710 is released, the movable bundle 300 is returned to its original position by the restoring force of the compressed elastic body 230.

Pulling the trigger 710 after the sock end of the wire (W) inserted through the split groove 510 by pulling the trigger 710, the trigger 710 is to press the switch 120 to the main body The motor built in the 100 is operated. When the motor is rotated, the rotating force is transmitted to the rotating shaft 110 and the rotating force is also transmitted to the connecting shaft 200 connected to the rotating shaft 110, the movable bundle 300 fitted to the connecting shaft 200, the fixed bundle 400 In addition, the induction cap 500 and the like are also rotated together.

When the movable bundle 300 including the connecting shaft 200 is rotated while the movable bundle 300 is moved by the movement of the movable bundle 300, the wire W is gradually twisted to bind the intersection points of the crossed rebars. do. That is, the worker can simply bind the wire (W) by the operation of the trigger 710 to perform the binding work of the reinforcing bars.

Reinforcing bar binding device according to the present invention will be widely used in construction sites, such as concrete structures in which the reinforcing bar binding operation is inevitably, since the operator does not have to rotate the wire directly to twist the wire can be convenient and quick work It is expected to be widely used.

1 is a schematic perspective view of a reinforcing bar binding apparatus according to an embodiment of the present invention.

2 is an exploded perspective view.

Figure 3 is a cross-sectional view showing a coupling state of the movable bundle, fixed bundle and the induction cap.

              <Description of Major Symbols Used in Drawings>

100: main body 110: rotation axis

120: switch 200: connecting shaft

210: first fastening part 220: first flange part

230: elastomer 240: washer

300: movable bundle 310: expansion pipe

311: inner diameter tapered portion 312: second fastening portion

320: second flange portion 330: locking section

301: through hole 400: fixed bundle

410: outer diameter tapered portion 420: guide pin

500: guide cap 510: split groove

520: female thread 530: guide tip

600: movable pull body 610: horizontal moving rod

620: connector 630: rolling body

631: cloud axis 640: wire

700: trigger bundle 701: fastener

702: pinhole 703: induction tunnel

710: trigger

Claims (6)

A main body with a built-in motor and a rotating shaft protruding outward; A connecting shaft connected to the rotating shaft and having a first fastening portion formed at a front end thereof and having a first flange portion protruding at a rear side thereof; A second flange is inserted into the connecting shaft and protrudes at the rear end, and is supported by an elastic body installed to abut on the first flange, and the front end is provided with an expansion pipe having an enlarged inner diameter. A second fastening portion is formed and an inner diameter surface is formed with an inner diameter taper portion whose inner diameter decreases toward the rear side, and an outer surface of the section between the second flange portion and the expansion pipe portion is made up of a locking section which is reduced in outer diameter and recessed; A fixed bundle which is partially inserted into the expansion pipe and fixedly coupled to the first fastening portion, wherein an outer diameter taper is formed from a rear end to a partial section and is formed of a cylindrical body in front of the outer diameter taper; An induction cap configured to be constrained at the second fastening portion to surround the cylindrical body portion of the fixed bundle, and a plurality of dividing grooves formed at the front end portion; And a movable pull body which is installed in the locking section and connected to the trigger bundle coupled to the main body to transmit force according to the operation of the trigger to move the movable bundle rearward. The method of claim 1, The induction cap, A circular guide tip surrounding the split groove is further coupled to the front end, and the split groove is characterized in that the plurality of split grooves are continuously cut in a V-shape. The method of claim 1, The trigger is, A pinhole is provided at the rear end to couple the trigger to the pin, and the front end is provided with an open induction tunnel for inducing a linear movement of the movable pull body. The method of claim 3, The movable pull body, A horizontal moving rod inserted into the induction tunnel; Y-shaped connector coupled to the front end of the horizontal movable rod toward the upper side; And a rolling body coupled to the left and right inner sides of the upper end of the connector and caught by the second flange. The method of claim 4, wherein The horizontal moving rod, Reinforcing bar binding device, characterized in that the trigger is connected to the wire and the handle is moved to the rear to move horizontally. The method according to any one of claims 1 to 5, Reinforcing bar binding device is formed on the outer surface of the main body is a switch, wherein the trigger is positioned facing the switch is configured to be switched on when the trigger is pulled.

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