KR20120009071A

KR20120009071A - hand drill

Info

Publication number: KR20120009071A
Application number: KR1020100070795A
Authority: KR
Inventors: 유신하
Original assignee: (주)정인시스템
Priority date: 2010-07-22
Filing date: 2010-07-22
Publication date: 2012-02-01

Abstract

PURPOSE: A hand drill is provided to prevent poor holes from being formed by preventing the shaking of the drill when drilling holes since the center of a bit is maintained in horizontal and vertical directions. CONSTITUTION: A hand drill(1) rotates a bit using the inner motor of a body(200) to form holes. The hand drill comprises a drill chuck housing(100) and a drill chuck(110). A drill jaw for fixing a bit or releasing fixing force is installed on the drill chuck housing. Since the drill chuck housing and the drill chuck are formed in a square or hexagonal shape, the bit is easily installed or separated using a general single-head spanner or a monkey spanner.

Description

Hand drill

The present invention relates to a hand drill, and in particular, the present invention is to use a general-purpose tool to tighten the drill chuck without using the drill chuck handle which is a dedicated tool for tightening the drill chuck and to hold the vertical and horizontal centers when drilling the drill hole is It relates to a hand drill for preventing the perforation in diagonal lines.

Drilling tools for processing holes of various materials such as metal, wood, and synthetic resins are used in various standards ranging from small to portable for home repair or student's cooperation to large, such as drilling machines in production sites. It is inevitably equipped with the ability to replace as few as several dozens of drills in order to cut holes of the required size, even in standard ones.

1 is a block diagram showing a chuck operating state of a conventional hand drill. The drill 17 is mounted via the drill chuck 15 at an end portion of the main shaft 16 that is rotated by a motor built in the body 20. At this time, the lower body is provided with a tooth shape and a circular groove in the drill chuck 15, the upper and lower bodies are coupled to the relative movement, the lever 12 of the drill chuck handle 10 in a state in which the drill chuck handle 10 is engaged with each other. Turn), jaws of the drill chuck 15 are interlocked. Accordingly, the drill 17 can be removed from the drill chuck 15, replaced, and tightened again to an appropriate torque.

By the way, such a dedicated drill chuck handle 10 has the advantage that it is small in size and easy to carry, but neglected handling often find the place where the operator put it often lost and can not use the drill and the drill chuck handle 10 Tighten the drill chuck by hand to use the drill even if you lose the) but the tightening torque is not maintained properly, so the chuck is loosely bitten by the jaw, causing a malfunction during operation, and furthermore, a safety accident that damages the tool and injuries the operator. There is a problem that is caused.

Another problem is that when drilling, the center of the hole is formed at the center of the hole by using a drill tip or nail, and the drill is performed. At this time, there is a problem that the drill hole processing is not processed in a straight line due to not catching the horizontal / vertical of the drill, and the hole is processed to be inclined so as to be defective.

The reason for the failure of the hole processing is to process the process while pressing the drill slowly, the operator's arm is shaken by the force that the operator presses the drill at this time will cause a failure of the hole processing.

The present invention devised in view of the above conventional problems

First, by using a general-purpose tool to easily tighten the drill chuck to improve the convenience of using the drill,

Second, by using a general-purpose tool to improve the tightening torque to prevent the breakage of the tool and safety accidents that injure the operator when the drill is operated,

Third, when the hole is made using a drill, the center of the tool that is bitten by the drill chuck can be machined while maintaining the horizontal and vertical positions.

Fourth, to provide a hand drill to prevent the hole is formed poorly by maintaining the center without shaking the drill even when the worker presses the drill while pressing the drill.

The present invention is a hand drill for forming a hole by rotating a tool by using a motor installed inside the body, the drill chuck housing is installed in the shape of a square or hexagon shape in which a drill jaw is installed to fix the tool or release the fixing force It is achieved by a hand drill, characterized in that to easily install and remove the tool by using a conventional one-span wrench, monkey wrench.

The body of the hand drill is achieved by a hand drill characterized in that the horizontal-vertical system is further provided.

The body of the hand drill is formed with a plurality of guides at regular intervals, the support groove is inserted into the guide groove is installed, and one end of the support is formed by a hand drill characterized in that it is further provided with a pedestal means formed by the rim member Is achieved.

The support is achieved by a hand drill characterized in that the elastic body having an elastic force.

The elastic body is achieved by a hand drill, characterized in that the support is pushed out of the guide groove and expanded.

The present invention improves the convenience of use of the drill by easily tightening the drill chuck using a general-purpose tool, and improves the tightening torque due to the use of the general-purpose tool. Prevents accidents and injuries to be injured, and enables the drilling of the drill chuck while maintaining the horizontal and vertical center of the tool bite. There is an advantage such as to maintain the center without shaking to prevent the formation of holes poorly.

1 is a configuration diagram showing a chuck operating state of a conventional hand drill.
Figure 2 is a perspective view showing the structure of a hand drill to which the technique of the present invention is applied.
Figure 3 is a bottom view showing the structure of a hand drill to which the technique of the present invention is applied.
4 is a perspective view showing another embodiment of the present invention.
Figure 5 is a perspective view showing the structure of the support that is the main part of the present invention.
Figure 6 is a bottom view showing the operation of the support that is the main part of the present invention.

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

2 is a perspective view showing the structure of the hand drill to which the technique of the present invention is applied and FIG. 3 is a bottom view showing the structure of the hand drill to which the technique of the present invention is applied. In the hand drill (1) for rotating the tool to form a hole by using a motor installed in the inside), the shape of the drill chuck housing (100) in which the drill jaws for fixing the tool or releasing the fixing force is installed, the square or hexagonal shape Formed to form a structure that is configured to easily install and remove the tool using a conventional one-span wrench, monkey wrench.

As described above, the drill chuck housing 100 may be formed in a square or hexagonal shape to tighten the drill chuck 110 using a general-purpose hand tool such as a wrench, a monkey wrench, and the convenience of using the drill 170. By improving and by increasing the tightening torque due to the use of a general-purpose tool, it is possible to prevent the breakage of the tool during the operation of the drill and the safety accident that injuries the operator.

On the other hand can be used by installing the horizontal gauge 400 to the body 200 of the hand drill 1 of the present invention. When the horizontal gauge 400 is attached and installed and the hole operation is performed, the horizontal gauge 400 is maintained while the horizontal gauge 400 is kept horizontal to prevent the drill hole from being shifted from the center of the drill hole. have.

Figure 4 is a perspective view showing another embodiment of the present invention and Figure 5 is a perspective view showing the structure of the support that is the main part of the present invention according to the guide groove 210 in the body 200 of the hand drill at a predetermined interval A plurality of guide grooves 210 are formed and the support 310 is inserted and installed, and one end of the support 310 may be further installed by using a pedestal means 300 connected by the edge member 320.

It is preferable that the support 310 is made of an elastic body having an elastic force, and more preferably, the end portion is expanded when the support 310 which is the elastic body is pushed out of the guide groove 210.

The use of the pedestal means 300 is formed in a rectangular or hexagonal shape of a drill chuck housing 100 in which a drill jaw for fixing a tool or releasing a fixed force is installed as shown in FIG. When a tool (drill) is easily fixed and installed by using a spanner and a monkey spanner, and the frame member 320 is pushed and moved toward the drill chuck 110, the support 310 is moved along the guide groove 210 so that an external drill ( 170) is drawn out in a horizontal state.

On the other hand, since the support that is moved along the guide groove 210 and drawn out is made of an elastic body, when the support 310, which is the elastic body, is pushed out of the guide groove 210, the end portion is expanded to form a wider support area. When the support 310 is withdrawn as described above, the drill 170 is not shaken when the hole is processed using the drill 170 to maintain a straight state.

In addition, when a hole is formed in a product made of a metal material, an effect of preventing a safety accident of an operator due to the tip bounced in all directions can be additionally obtained.

Meanwhile, the folding of the pedestal means 300 moves along the guide groove 210 when the frame member 320 is moved toward the drill body 200, and the support 310 which is drawn out comes into the guide groove 210. It is folded.

100: drill chuck housing 110: drill chuck
170: drill 200: body
210: guide groove 300: support means
310: support 320: frame member
400: level

Claims

In a hand drill using a motor installed inside the body to rotate the tool to form a hole,
The drill chuck housing in which the drill jaws are installed to fix the tool or release the fixing force and the drill chuck are formed in a square or hexagonal shape so that the tool can be easily fixed and installed by using a conventional single-panel wrench or monkey wrench. Hand drill.

The method of claim 1,
Hand drill, characterized in that the horizontal-vertical system is further provided on the body of the hand drill.

The method of claim 1,
A plurality of guides are formed in the body of the hand drill at regular intervals, and the support groove is inserted into the guide groove, and one end of the hand drill is further provided with a pedestal means formed by an edge member.

The method of claim 3, wherein
Hand support, characterized in that the support is an elastic body having an elastic force.

The method of claim 4, wherein
Hand elastic, characterized in that the end is extended by the support is pushed out of the guide groove.