KR200310074Y1 - The machine which bores the hole to the sash - Google Patents

Abstract

The present invention has both operating handles pivoting from a hinged center axis as a starting point, a cutting lever and a support lever hinged to the ends of the operating handles, respectively, and retreating in opposite directions, coupled to the cutting levers and sheared thereon. A chassis comprising a cutting piece equipped with a cutter for cutting the workpiece in the portion, and a support piece coupled to the support lever so as to face the cutting piece and having a cutter guide groove at the front end thereof in accordance with the cutter shape. As the perforator for cutting, the cutting piece and the support piece are respectively formed in the front and rear insertion grooves at the rear end thereof, and the front end portions of the cutting lever and the support lever are inserted into the insertion grooves of the cutting piece and the support piece, respectively, and welded to each other. It is characterized in that, it is easy to combine the cutting piece and the support piece to the cutting lever and the support lever respectively to improve the productivity of the product Ron, Repeat drilling operations that are no longer binding sites of these easily damaged it is possible to increase the life of the product.

Description

Chassis Drills {The machine which bores the hole to the sash}

The present invention relates to a chassis perforator for drilling a drainage hole in an aluminum chassis or a high chassis used in a frame such as a window, and in particular, a cutting lever for cutting a piece and a support piece which are in direct contact with a workpiece to perform a drilling operation. And it is easy to be coupled to the support lever, and to the perforator for the chassis made suitable for not easily broken their coupling portion even in repeated drilling operations.

In general, the chassis perforator is used to perforate the drainage holes for drainage on the frame part of the rail to smoothly drain the aluminum chassis or the hi-chassis, such as windows installed in various buildings.

Drilling of such drainage holes is usually made by hand, and many punching machines using the principle of lever are used.

1 is a reference view showing a conventional chassis puncher.

As shown in the drawing, the conventional chassis perforator is hinged to both operation handles 101a and 101b pivoting from the center shaft 110 hinged to each other and the ends of the operation handles 101a and 101b, respectively. Cutting piece 105a equipped with a cutting lever 103a and a support lever 103b advancing and retreating in mutually opposite directions, and a cutter 107 coupled to the cutting lever 103a and cutting a workpiece at its front end portion. And a support piece 105b having a cutter guide groove 109 coupled to the support lever 103b so as to face the cutting piece 105a and having a cutter guide groove 109 conforming to the cutter 107 shape. It became.

Here, the cutting piece 105a and the support piece 105b are normally joined to the cutting lever 103a and the support lever 103b by welding, which requires no additional processing and additional processing by welding. This is because the time required for the production is shorter, which is advantageous in terms of cost and time.

In such a configuration, the conventional chassis puncher is narrowed with a strong force from each other with the hinged central axis 110 as a starting point when the operation handles 101a and 101b are inwardly engaged with the cutting pieces 105a. The drainage hole was able to be drilled in the window frame rail by the support piece 105b.

However, in the related art, the cutting pieces 105a and the supporting pieces are weakly coupled to the cutting pieces 105a and the supporting pieces 105b, respectively, which are coupled to the cutting levers 103a and the support levers 103b. There was a problem that 105b is separated from the cutting lever 103a and the support lever 103b.

This is, after the cutting piece 105a and the support piece 105b are folded and welded to the cutting lever 103a and the support lever 103b in a tee shape, respectively, in this case, the joint area of the welded portion 111 is welded. When the small and punched rails open the cutting lever 103a and the support lever 103b, the cutting lever 103a and the cutting piece 105a joined together by the welding part 111 and between the support lever 103b and Since the support pieces 105b are very fragile with respect to the tensile stresses acting on each other, the joint portions by the welded portions 111 could not be tolerated and were damaged.

In addition, since welding is performed manually, it takes a long time to combine the cutting piece 105a and the support piece 105b at the correct positions of the cutting lever 103a and the support lever 103b, and mutually. There is a problem in that the combination of the incorrect position is poor, which affects the productivity and life of the product.

The present invention has been proposed to solve the conventional problems as described above, the object of the present invention is to connect the cutting and support pieces to the cutting lever and the support lever to perform a punching work in direct contact with the workpiece, respectively. It is easy to improve the productivity of the product, as well as to provide a perforator for the chassis suitable for not easily damaged their joints even in repeated drilling operations.

1 is a reference diagram showing a conventional chassis perforator;

2 is a reference diagram showing an example of use of the chassis perforator of the present invention.

3 is a block diagram of the chassis perforator of the present invention.

Figure 4 is an elevation view of the chassis perforator of the present invention.

Figure 5a is a reference diagram showing a cutting piece welded to it and a cutting piece of the present invention is formed insertion groove.

Figure 5b is a reference view showing a cutting piece welded to it and a cutting piece of the present invention is formed insertion groove.

FIG. 5C is a reference view showing a cross section taken along the line AA ′ of FIG. 5B. FIG.

Figure 6 is a block diagram of a chassis perforator showing a modified embodiment of the present invention.

7 is an elevation view of the chassis perforator showing a modified embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1a, 1b: Operation handle 3a: Cutting lever

3b: support lever 5a: cutting piece

5b: support piece 7: cutter

9: cutter guide groove 11: welded portion

15 cutter 17 outlet

In order to achieve the above object, the chassis perforator according to the technical idea of the present invention includes both operating handles pivoting from a hinged center axis as a starting point, and hinged to ends of the operating handles, respectively, in a direction facing each other. A cutting piece equipped with a cutting lever and a support lever advancing, a cutter coupled to the cutting lever and cutting a workpiece at the front end thereof; a cutting piece coupled to the support lever so as to face the cutting piece; A chassis boring machine comprising a support piece having a cutter guide groove conforming to a shape, wherein the cutting piece and the support piece respectively have front and rear insertion grooves formed at their rear ends, and the front end portions of the cutting lever and the support lever. It is characterized in that the technical configuration that the welded and then coupled to each inserted into the insertion groove of the cutting piece and the support piece.

In addition, the chassis perforator according to the present invention, both operation handles pivoting from the mutually hinged center axis, the cutting lever and the support lever hinged to the end of the operation handles to retreat in opposite directions, and the cutting A cutting piece coupled to the lever and equipped with a cutter for cutting a workpiece on an inner side thereof, and a deformation cutter guided to a shape of the cutter on a surface opposite to the cutting piece and coupled to the support lever so as to face the cutting piece; A chassis perforator comprising a deformed support piece provided with a groove and having a discharge port for discharging the workpiece to be communicated with the deformed cutter guide groove, wherein the cut piece and the deformed support piece respectively have a rear end portion thereof. A front and rear insertion groove is formed, and the front end portions of the cutting lever and the support lever are respectively inserted into the insertion grooves of the cutting piece and the deformation support piece, and then welded to each other. That the sum can be of a feature.

Hereinafter, with reference to the accompanying drawings an embodiment according to the technical idea of the present invention in detail as follows.

2 is a reference diagram showing an example of use of the chassis perforator of the present invention.

As shown, the chassis perforator 100 of the present invention is used to drill the drain hole 300 in a predetermined portion of the workpiece 200 (hereinafter referred to as "rail") in a state where the chassis forming the window frame is installed. Used.

In particular, the present invention is easy to combine the cutting piece (5a) and the support piece (5b) with the cutting lever and the support lever, respectively, in the production of the product, and when the punching operation is carried out the load concentrated on the actual workpiece Reinforcing the engaging portion of each of the cutting piece (5a) and the support piece (5b) to withstand has a feature that is not easily broken.

Hereinafter, the configuration of the present invention for implementing the features as described above in more detail.

3 is a configuration diagram of the chassis perforator of the present invention, Figure 4 is an elevation view of the chassis perforator of the present invention.

As shown, the present invention is hinged to the end of the operation handles (1a, 1b) and the operating handles (1a, 1b), respectively, pivoting from the mutually hinged center axis (10) as a starting point to face each other A cutting piece 5a equipped with a cutting lever 3a and a support lever 3b advancing and retreating in a direction, and a cutter 7 coupled to the cutting lever 3a and cutting a workpiece at its front end portion; The support piece 5b is coupled to the support lever 3b so as to face the cutting piece 5a and includes a support piece 5b having a cutter guide groove 9 corresponding to the cutter 7 shape.

Here, the cutting piece 5a and the support piece 5b are formed at the rear end in the front and rear insertion grooves, respectively, and the front end portions of the cutting lever 3a and the support lever 3b are the cutting piece 5a and Each is inserted into the insertion groove of the support piece 5b and then welded.

Thus, Figure 5a is a reference diagram showing a cutting piece of the present invention is formed with an insertion groove and a cutting lever welded thereto, Figure 5b is a support piece of the present invention formed with an insertion groove and a support lever welded to it It is the reference figure shown.

As shown, the insertion groove 13 is formed at the rear end of the cutting piece 5a of the present invention so that the front end portion of the cutting lever 3a can be cross-inserted in a cross shape.

The cutting lever 3a is cross-inserted into the insertion groove 13 formed as described above, and then welded to the cutting piece 5a and the cutting lever 3a.

At this time, a bead (bead) is accumulated in the welded portion 11 is formed in the welded portion 11, the cut piece (5a) and the cutting lever (3a) is substantially coupled by the welded portion (11).

Similarly, the insertion groove 13 is formed at the rear end of the support piece 5b of the present invention so that the front end portion of the support lever 3b can be cross-inserted in a cross shape, and the support piece 5b thus formed. After the support lever 3b is inserted into the insertion groove 13 of the crossover and welded, the cutting piece 5a and the cutting lever 3a are coupled to each other.

Here, the insertion groove 13 formed at the rear end of the cutting piece 5a and the support piece 5b is formed exactly in the center portion where the cutting lever 3a and the support lever 3b are coupled, and this insertion groove is 13 is formed together when the cut piece 5a and the support piece 5b are first molded and manufactured.

As such, when the insertion groove 13 is formed at the rear ends of the cutting piece 5a and the supporting piece 5b, the cutting lever is welded, which is somewhat difficult to secure an accurate field of view due to wearing safety glasses. It is possible to prevent the 3a and the support lever 3b from engaging in an incorrect position.

In this way, it is important that the cutting piece 5a and the support piece 5b are coupled to the cutting lever 3a and the support lever 3b at the correct positions without deviation from side to side, but if the cutting lever 3a and the support lever This is because when the cutting piece 5a and the supporting piece 5b are combined at (3b) at an incorrect position from side to side, a considerable force is concentrated only on one side during repetitive drilling, and the breakage proceeds at the site. .

However, in the present invention, as well as to prevent the above problems caused by the imbalance of force, as well as to secure the joint surface by a larger number of welded portions (11) than conventional chassis perforator coupling The site can be further strengthened.

5C is a reference diagram showing a cross section taken along the line AA ′ of FIG. 5B.

As shown, the welded portion 11 because the cut piece 5a and the support piece 5b of the present invention are welded in a cross shape to the cutting lever 3a and the support lever 3b, respectively. The bond is further strengthened by).

That is, the cutting lever 3a and the cutting piece 5a are formed by welding parts 11 formed on the upper left, right and lower left and right sides of the drawing, and the cutting piece 5a and the supporting piece 5b are conventionally cut levers 3a. ) And the support lever 3b, respectively, can be further strengthened to the extent of being coupled to the tee (T) shape compared to the welded.

In particular, the present invention is directed to a tensile stress having a tendency for the coupling portion by welding to separate the cutting lever 3a and the cutting piece 5a and the support lever 3b and the support piece 5b from each other. It can solve very vulnerable problems.

When described in detail with reference to the accompanying drawings the operation of the chassis drilling machine according to the present invention is configured as follows.

First, when the user grasps the operation handles 1a and 1b and opens them to both sides, the lower ends of the cutting lever 3a and the support lever 3b hinged to the ends of the operation handles 1a and 1b are narrowed inward. The front end portion is opened in the same direction as the operation handles (1a, 1b).

Accordingly, the cutting piece 5a and the supporting piece 5b coupled to the front end portions of the cutting lever 3a and the support lever 3b are opened, and in this state, the rail to be punched is positioned between the cutting pieces 5a and the supporting piece 5b. When the operation handles 1a and 1b are retracted inward, the front end portions of the cutting lever 3a and the support lever 3b are narrowed inward, and as a result, the cutting lever 3a and the support lever 3b are closed. The cutting piece 5a and the supporting piece 5b which are coupled to each other are also narrowed inward.

Accordingly, the cutter 7 mounted on the front end of the cutting piece 5a passes through the rail 200 to form a drain hole 300 corresponding to the cross-sectional shape of the cutter 7 and at the same time the rail ( The cutter 7 penetrating the 200 is guided by the cutter guide groove 9 formed in the support piece 5b.

As such, when the drain hole 300 is formed in the rail 200, the operating handles 1a and 1b are opened to both sides to separate the cutter 7 from the rail 200.

At this time, although the cutting lever 3a and the cutting piece 5a and the supporting lever 3b and the supporting piece 5b, which are joined by welding to each other, tensile stresses tending to be separated from each other, The welded portion 11 formed in the direction sufficiently withstands the tensile stress, thereby preventing breakage of the coupling portion.

In this way, the drilling operation according to the present invention is repeated.

6 is a configuration diagram of a chassis perforator showing a modified embodiment of the present invention, Figure 7 is an elevation of the chassis perforator showing a modified embodiment of the present invention.

As shown, according to the present invention, the present invention provides both the operating handles 1a and 1b, the cutting lever 3a and the support lever 3b, the cutting piece 5a, and the deformation supporting piece 5c. It is configured to include.

Here, the operation handle (1a, 1b), the cutting lever (3a) and the support lever (3b) are the same as in the previously described embodiment, detailed description thereof will be omitted.

On the other hand, the cutting piece (5a) is coupled to the cutting lever (3a) and the cutter 15 for cutting the workpiece on its inner surface is mounted.

The cross section of the cutter 15 mounted on the cutting piece 5a is circular as shown, but may be formed in various shapes.

In addition, the deformation support piece (5c) is coupled to the support lever (3b) so as to face the cutting piece (5a) and the deformation cutter guide corresponding to the shape of the cutter (15) on the opposite surface of the cutting piece (5a) A groove is provided and has a discharge port 17 for communicating with the deformation cutter guide groove and for discharging the cut workpiece.

Here, in the modified embodiment of the present invention as well as the embodiment, the cutting piece 5a and the deformation supporting piece 5c are respectively formed at the rear end thereof with the front and rear insertion grooves 13 formed therein, and the cutting lever 3a and The front end portions of the support levers 3b are inserted into the insertion grooves 13 of the cut pieces 5a and the deformable support pieces 5c, respectively, and then welded and joined to each other.

However, since this is similar to the embodiment, detailed description thereof will be omitted.

In the above described a preferred embodiment of the present invention. The present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the present invention defined by the limits of the following utility model registration claims.

As described above, the chassis perforator according to the present invention is more precise and easy to combine the cutting piece and the support piece during the production of the product, the productivity is increased, the damage when performing the drilling work in contact with the actual workpiece, It is effective to improve the life of the product by strengthening the coupling part of the cutting piece and the support piece, which can be said to be the most vulnerable part.

Claims (2)

Both operating handles pivoting on mutually hinged center axes, a cutting lever and a support lever hinged to the ends of the operating handles, respectively, and retreating in opposite directions, coupled to the cutting levers, As a perforation machine for chassis comprising a cutting piece equipped with a cutter for cutting a workpiece, and a support piece coupled to the support lever so as to face the cutting piece and having a cutter guide groove corresponding to the cutter shape at a front end thereof. , The cutting piece and the support piece are respectively formed in the front and rear insertion grooves at the rear end thereof, and the front end portions of the cutting lever and the support lever are inserted into the insertion grooves of the cutting piece and the support piece, respectively, and then welded to each other. Chassis perforator. Both operating handles pivoting on mutually hinged center axes, cutting levers and support levers hinged to the ends of the operating handles, respectively, and retreating in opposite directions, coupled to the cutting levers, A cutting piece equipped with a cutter for cutting a workpiece, and a deformation cutter guide groove coupled to the support lever so as to face the cutting piece and corresponding to the cutter shape on an opposing surface of the cutting piece. A perforator for a chassis configured to include a deformed support piece having a discharge port for discharging a workpiece to be communicated with and cut. The cutting piece and the deformable support piece are respectively formed in the front and rear insertion grooves at the rear end thereof, and the front end portions of the cutting lever and the support lever are respectively inserted into the insertion grooves of the cut piece and the deformable support piece and welded to each other. Perforator for chassis.