KR200496642Y1 - Cutting tool for removing edge of flat-tie - Google Patents

Abstract

The present invention relates to a flat tie end cutting tool, the handle 10 of a long rod structure; a first tie cutting part 20 provided at one end of the handle and having a first insertion groove through which an end of a flat tie to be cut is inserted; and a second tie cutting part 30 provided at the other end of the handle and having a second insertion groove into which the end of the flat tie to be cut is inserted. Therefore, by providing a tie-cutting part having an insertion groove through which the end of a flat tie to be cut is tightly inserted into one end of a handle having a long rod structure, it is possible to stably cut only the end of a flat tie, and accordingly, the end of a flat tie can be cut. As it is possible to prevent safety accidents according to the foregoing, it is possible to give a sense of safety to the user, and also, a first and second insertion grooves having first and second insertion grooves for inserting the ends of the flat tie to be cut into both ends of the handle, respectively. , 2 tie cutting parts are provided, but the sizes of the first and second insertion grooves are different so that it can be applied to flat ties of various sizes, and as a result, it is possible to improve work compatibility as well as to improve work efficiency accordingly You can get the effect of being able to.

Description

Flat tie end cutting tool {CUTTING TOOL FOR REMOVING EDGE OF FLAT-TIE}

The present invention relates to a flat tie end cutting tool, and more particularly, to a flat tie end cutting tool for removing the end of a flat tie protruding from the outer wall surface of a cured concrete structure.

In general, in order to construct a wall such as a concrete building or a concrete structure, two formworks are installed facing each other at an appropriate interval according to the thickness of the wall to be built, and then concrete mortar is poured on the inside of the formwork on both sides to build the wall. are doing

As such a formwork, a euroform panel is mainly used, and an example of its use is schematically as follows.

The euro-form panels are installed side by side opposite to the width of a concrete structure to be built, for example, a wall.

In addition, flat ties are installed in grooves for inserting flat ties formed on the side surfaces of the euro-form panels in a direction crossing the opposite euro-form panels, and fastened and fixed by fastening pins.

With the formwork installed in this way, as described above, concrete mortar is poured inside the formwork on both sides to construct the wall.

The flat tie used here serves to maintain the spacing of the euroform panels used as formwork as designed.

And, after constructing a concrete structure such as a wall, the euroform panels used as formwork are removed, and in the state where the euroform panels are removed, the part fixed to the euroform panels among the flat ties is the constructed concrete structure, that is, It protrudes out of the wall.

As such, the portion protruding to the outside of the concrete structure among the flat ties is removed by breaking using a hammer or the like to complete the concrete structure.

However, in this process, the hammer used to remove the protruding part of the concrete structure among the flat ties is not a dedicated tool for removing the flat ties, but is generally used, for example, for hitting nails or pulling out nails. Since it is used, not only can damage the concrete structure during work, but it is difficult to remove the protruding part of the flat tie to the outside of the concrete, and the part to be removed is exposed to the outside of a tool such as a hammer. Because the work was carried out in the machine, there were problems such as the possibility of injury to workers.

Republic of Korea Patent Publication No. 10-2020-0032420

The present invention has been devised to solve this problem, and stably cuts only the flat tie end by providing a tie cutting part having an insertion groove so that the flat tie end to be cut is closely inserted into one end of the long rod structure handle. Its purpose is to provide a flat tie end cutting tool that can do this.

In addition, first and second tie cutting parts having first and second insertion grooves are provided at both ends of the handle to insert flat tie ends to be cut, respectively, and the sizes of the first and second insertion grooves are varied to have various sizes. Another object is to provide a flat tie end cutting tool that can be applied to the flat tie of the.

Flat tie end cutting tool according to an embodiment of the present invention for achieving the above object, the handle of a long rod structure; a first tie cutting part provided at one end of the handle and having a first insertion groove into which an end of a flat tie to be cut is inserted; and a second tie-cutting part provided at the other end of the handle and having a second insertion groove through which the end of the flat tie to be cut is inserted, wherein the handle has a predetermined portion extending from one end to the first tie-cutting part. A first bent part is provided so that the handle extends upward at a predetermined angle when the end of the flat tie corresponding to the first insertion groove of the first tie-cutting part is inserted by being bent at an angle, and the handle extends upward at a predetermined angle. A second bent part is provided so that a portion leading to the tie cutting part is bent at a predetermined angle so that the handle extends upward at a predetermined angle when the end of the flat tie corresponding to the second insertion groove of the second tie cutting part is inserted. The 1st and 2nd tie-cutting parts are bent at a predetermined angle with respect to the handle so that the first and second insertion grooves, respectively, face opposite directions with respect to the handle, and the first bent part is bent at a predetermined angle with respect to the handle. When the end of the flat tie is inserted into the second insertion groove of the two-tie-cutting portion, the first tie-cutting portion has a bending angle such that the first tie-cutting portion is parallel to the ground, and the second bending portion is inserted into the first insertion groove of the first tie-cutting portion. When the end of the flat tie is inserted, the second tie cutting portion has a bending angle such that it is parallel to the ground, and the handle is divided into two parts of the first and second handles and is detachably connected, but the first handle rotates in place It is possible and a coupling protrusion having a sliding ball is provided on the outer circumferential surface, and the corresponding second handle has a structure having a coupling groove provided with a guide rail having a spiral groove structure so that the sliding ball slides along the inner circumferential surface. to do

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In addition, in the flat tie end cutting tool according to an embodiment of the present invention, a reinforcing part for reinforcing the outside of the first tie cutting part may be further provided on one side of the first tie cutting part.

As described above, the flat tie end cutting tool of the present invention stably stably only the flat tie end by providing a tie cutting part having an insertion groove so that the flat tie end to be cut is closely inserted into one end of the long rod structure handle. As a result, it is possible to prevent safety accidents caused by cutting the ends of flat ties in advance, thereby providing a sense of safety to the user.

In addition, first and second tie cutting parts having first and second insertion grooves are provided at both ends of the handle to insert flat tie ends to be cut, respectively, and the sizes of the first and second insertion grooves are varied to have various sizes. As it can be applied to the flat tie of, as a result, it is possible to improve work compatibility, as well as to improve work efficiency accordingly.

1 is a perspective view showing a flat tie end cutting tool according to an embodiment of the present invention.
Figure 2 is a perspective view of the flat tie end cutting tool according to an embodiment of the present invention viewed from the other side.
3 is a side view showing a flat tie end cutting tool according to an embodiment of the present invention.
4 is a schematic view showing an example of use of a flat tie end cutting tool according to an embodiment of the present invention.
Figure 5 is an exploded perspective view showing the first and second handle coupling structure of the flat tie end cutting device according to another embodiment of the present invention.
Figure 6 is a main part operation flow chart showing the operation process for the sliding ball of the first and second handle coupling structure of the flat tie end cutting tool according to another embodiment of the present invention.
Figure 7 is a planar section showing the main part of the operation process for the return spring of the first and second handle coupling structure of the flat tie end cutting tool according to another embodiment of the present invention.

Hereinafter, the present invention will be described based on the accompanying drawings.

As shown in Figures 1 to 4, the flat tie end cutting tool according to an embodiment of the present invention includes a handle 10, a first tie cutting part 20, and a second tie cutting part 30.

The handle 10 has a long bar structure that allows the operator to hold it with both hands.

The first tie cutting part 20 is provided at one end of the handle 10 and has a pocket structure having a first insertion groove 21 into which the end of the flat tie 7 to be cut is inserted.

The second tie cutting part 30 is provided at the other end of the handle 10 and has a pocket structure having a second insertion groove 31 into which the end of the flat tie 7 to be cut is inserted.

In addition, the flat tie 7 of the handle 10 is bent at a predetermined angle at one end leading to the first tie-cutting part 20 to correspond to the first insertion groove 21 of the first tie-cutting part 20. ) Is provided with a first bent portion 11 so that the handle 10 extends upward at a predetermined angle when the end of the is inserted.

In addition, the flat tie 7 of the handle 10 is bent at a predetermined angle at a portion extending from the other end to the second tie-cutting portion 30 to correspond to the second insertion groove 31 of the second tie-cutting portion 30. ) Is provided with a second bent portion 12 so that the handle 10 extends upward at a predetermined angle when the end of the is inserted.

In addition, the first tie-cutting part 20 has a reinforcing part 22 for reinforcing the outside of the first tie-cutting part 20 provided on one side.

Here, in the reinforcing part 22, the first insertion groove 21 is formed larger than the second insertion groove 31, and accordingly, since the relatively larger flat tie 7 must be cut, that much It is preferable to provide the reinforcing part 22 in order to offset the repulsive force applied to the first insertion groove 21 since a lot of force is required during cutting.

Looking at an example of the use of the flat tie end cutting tool according to an embodiment of the present invention according to this configuration is as follows.

First, referring to FIG. 4, when a worker needs to remove the end of the flat tie 7 protruding out of the concrete structure 5, for example, the corresponding flat tie of the flat tie end cutting tool. The end of the flat tie 7 is inserted into the first insertion groove 21 corresponding to the end of (7).

Then, the handle 10 has a structure extending upward at a predetermined angle by the first bent portion 11, and in this state, the operator can press the handle 10 downward to cut the end of the flat tie. .

On the other hand, as another embodiment of the present invention, as shown in FIGS. 4 to 6, for example, an embodiment in which the handle is divided into two parts of the first and second handles 40 and 55 to be detachably connected and used. Take a look at:

The coupling protrusion 50 of the first handle 40 is rotatable in place, and a sliding ball 51 is provided on the outer circumferential surface, and the coupling groove 60 of the second handle 55 corresponding to this is provided on the inner circumferential surface. Accordingly, a guide rail 61 having a spiral groove structure allowing the sliding ball 51 to slide may be provided.

Here, the sliding ball 51 has a structure in which the spring 52 elastically protrudes into and out of the outer circumferential surface of the coupling protrusion 50, and the sliding ball 51 rides at the rear end of the path of the guide rail 61. It has a structure in which a locking jaw 62 is provided so as to be caught while sexually appearing.

Reference numeral 63 denotes a guide slope for smooth entry of the sliding ball 51 into the guide rail 61.

In addition, the coupling protrusion 50 may be provided with an elastic return means for allowing the sliding ball 51 to elastically move along the guide rail 61 and return to its original state.

Here, the elastic return means is provided with spring receiving portions 53 having a large-diameter structure concave downward on both sides of the upper surface of the first handle 50, and lowering from the central bottom surface of the coupling protrusion 50. A rotating shaft 54 of a small diameter structure protruding and spaced apart from the inner circumferential surface of the spring receiving portion 53 by a predetermined distance is provided, one end of which is connected to the inner circumferential surface of the spring receiving portion 53 and the other end of the rotating shaft 54 ) and has a structure including a restoration spring 70 having an elastic restoring force by the axis rotation of the rotation shaft 54.

Unexplained reference numeral 80 denotes a shaft bearing that couples the rotating shaft 54 to rotate the shaft.

In addition, the restoring spring 70 has a spring-type leaf spring structure in which the outer circumferential surface of the rotating shaft 54 is unwound from the outer circumferential surface of the rotating shaft 54 by the shaft rotation of the rotating shaft 54 and has elasticity. is made up of

A connection structure between the first handle 40 and the second handle 55 of another embodiment of the present invention according to this configuration will be described in detail.

Basically, the engaging protrusion 50 of the first handle 40 is coupled with the sliding ball 51 of the engaging protrusion 50 of the first handle 40 and the second handle 55 by the elastic force of the restoring spring 70. The guide rail 61 of the coupling groove 60 is placed on the same line.

In this state, when the coupling protrusion 50 is inserted into the coupling groove 60, the sliding ball 51 of the coupling protrusion 50 is guided along the guide rail 61 of the coupling groove 60 in the insertion direction.

At this time, the sliding ball 51 is easily guided to the guide rail 61 by the guide slope 63 formed at the inlet of the guide rail 61.

And, while the sliding ball 51 moves along the guide rail 61, the coupling protrusion 50 rotates in place, and at the same time, the restoring spring 70 is elastically deformed in the shape of unwinding the mainspring. have elasticity.

Continuing, when the sliding ball 51 proceeds along the guide rail 61 and reaches the end of the locking jaw 62, the sliding ball 51 is pushed by the locking shoulder 62 to form the coupling protrusion 50. When it is pushed inward and goes beyond the locking jaw 62, it protrudes again by the elastic force of the spring 52 and is finally hooked on the locking jaw 62, so that the coupling protrusion 50 is firmly coupled and fixed in the coupling groove 60. becomes

Then, when the first handle 40 and the second handle 55 are pulled in opposite directions to separate the coupling protrusion 50, the sliding ball 51 crosses the locking jaw 62 again. At the same time, the recovery spring 70 is restored to its original state surrounding the outer circumference of the rotation shaft 54 by the elastic force, and the separation from the coupling groove 60 of the coupling protrusion 50 is quick and it will be done smoothly.

As described above, the flat tie end cutting tool according to an embodiment of the present invention provides a tie cutting part having an insertion groove so that the flat tie end to be cut is closely inserted into one end of the long rod structure handle, It is possible to stably cut only the ends of the flat ties, thereby preventing safety accidents caused by cutting the ends of flat ties in advance, and giving users a sense of safety.

In addition, first and second tie cutting parts having first and second insertion grooves are provided at both ends of the handle to insert flat tie ends to be cut, respectively, and the sizes of the first and second insertion grooves are varied to have various sizes. As it can be applied to the flat tie of, as a result, it is possible to improve work compatibility as well as to improve work efficiency accordingly.

As described above, the present invention has been described with the above preferred embodiments, but the present invention belongs to the utility model registration claims and detailed description of the present invention as well as modified examples in which these embodiments are simply applied in combination with conventional known technologies All techniques that can be easily changed and used by those skilled in the art should be regarded as naturally included in the technical scope of the present invention.

**Explanation of symbols for the main parts of the drawings**
5: concrete structure 7: flat tie
10: handle 11: first bent portion
12: second bending part 20: first tie cutting part
21: first insertion groove 22: reinforcement part
30: second tie cutting portion 31: second insertion groove
40: first handle 50: coupling protrusion
51: sliding ball 52: spring
53: spring receiving portion 54: rotational shaft
55: second handle 60: coupling groove
61: guide rail 62: locking jaw
63: guide slope 70: return spring
80: shaft bearing

Claims (4)

Handle with a long bar structure;
a first tie cutting part provided at one end of the handle and having a first insertion groove into which an end of a flat tie to be cut is inserted; and
a second tie cutting part provided at the other end of the handle and having a second insertion groove through which an end of a flat tie to be cut is inserted;
including,
The handle is bent at a predetermined angle at one end leading to the first tie-cutting part so that the handle extends upward at a predetermined angle when the end of the flat tie corresponding to the first insertion groove of the first tie-cutting part is inserted. A first bent portion is provided,
The handle has a structure in which a portion extending from the other end to the second tie-cutting part is bent at a predetermined angle so that the handle extends upward at a predetermined angle when the end of the flat tie corresponding to the second insertion groove of the second tie-cutting part is inserted. A second bent portion is provided,
The first and second tie-cutting parts are bent at a predetermined angle with respect to the handle so that the first and second insertion grooves face opposite directions with respect to the handle,
The first bent part has a bending angle such that the first tie-cutting part becomes parallel to the ground when the end of the flat tie is inserted into the second insertion groove of the second tie-cutting part,
The second bent part has a bending angle such that the second tie-cutting part becomes parallel to the ground when the end of the flat tie is inserted into the first insertion groove of the first tie-cutting part,
The handle is divided into two parts of the first and second handles and is detachably connected,
The first handle is rotatable in place and has a coupling protrusion formed with a sliding ball on the outer circumferential surface,
The flat tie end cutting device, characterized in that the second handle corresponding thereto has a structure having a coupling groove provided with a guide rail having a spiral groove structure so that the sliding ball slides along the inner circumferential surface. delete delete According to claim 1,
The flat tie end cutting tool, characterized in that the first tie-cutting portion is further provided with a reinforcing portion for wrapping and reinforcing the outside of the first tie-cutting portion on one side.

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