KR102198389B1 - Electric driver - Google Patents

Abstract

The present invention relates to an electric driver, comprising a cylindrical frame unit having a hollow portion and a head unit coupled to the front of the frame unit, and a driver unit capable of fastening and loosening a screw inside the frame unit, rotating In the case of including a screw part, a moving part caught by the screw part, and a storage part storing the removed screw, the screw is removed by the driver part, and the screw part is caught and moved to the storage part along the moving part and stored. I can.

Description

Electric screwdriver {ELECTRIC DRIVER}

The present invention relates to an electric driver. More specifically, it includes a cylindrical frame unit having a hollow portion and a head unit coupled to the front of the frame unit, and the frame unit and the head unit have a groove formed in a diagonal direction so that the screw head can be caught. . Due to this feature, after the screw head is caught in each groove, it can be moved to and stored in the storage unit inside the frame unit.

In general, a screw is the most important basic component of a fastening element among a number of parts used in various mechanical devices and civil engineering works, and is used as a fastening means between fastening objects.

In order to perform a fastening operation using such a fastening means, various fastening and disassembling tools such as a screw driver and a spanner are required.

The fastening means used for fastening work vary in shape and size depending on the purpose and use.

Therefore, a worker who performs work using the fastening means must prepare a fastening tool corresponding to the fastening means of various shapes.

As a typical fastening tool, a screwdriver for tightening or loosening a screw is provided.

A screwdriver is a fastening tool having a bit corresponding to the screw head having a straight or cross-shaped groove. You can tighten or loosen the screw by aligning the screwdriver bit to the head of the screw and rotating it. have.

Accordingly, the conventional screwdriver is composed of bits of various shapes corresponding to the screw shape and a handle capable of replacing and rotating these bits.

However, in the conventional manual screwdriver, the fastening or loosening operation is performed only by the rotational force of the worker, so that the rotation torque is different for each worker and it is difficult to increase the rotation torque.

In addition, when a large amount of fastening work is required, there is a problem in that the fatigue of the worker is increased and the work productivity is decreased due to excessive work time.

In order to solve these problems, an electric driver has been disclosed to improve operator convenience.

However, since the conventional electric driver is relatively large in size and heavy in weight compared to a manual screw driver, there is a disadvantage in that work fatigue is easily generated.

In addition, for fastening or unscrewing, multiple screws must be held in hand or must be placed in one place, and there is a problem in which safety accidents frequently occur.

In addition, when unscrewing a screw with a conventional electric screwdriver, the loosened screw often falls off the screwdriver or rubs against an operator's body, causing injury.

Accordingly, there is a need for development so that problems such as a safety accident of a conventional electric driver can be improved.

KR 2020030021854 B1

An object of the present invention includes a cylindrical frame unit having a hollow portion and a head unit coupled to the front of the frame unit for the purpose of automatically fastening, separating and storing screws, and the frame unit and the head unit include a screw head Each groove formed in the diagonal direction is provided so that it can be caught.

In order to achieve the above object, the electric driver according to an embodiment of the present invention includes a cylindrical frame unit having a hollow portion and a head unit coupled to the front of the frame unit, and the frame unit includes a screw A driver unit capable of fastening and loosening operations, a screw unit that rotates, a moving unit for moving the screw by the screw unit, and a storage unit for storing the removed screw are included, and the screw is removed by the driver unit. , And is moved to the storage part along the moving part at the same time as the screw part is caught.

Hereinafter, the present invention will be described in more detail.

The head unit according to an embodiment of the present invention includes a first gear part having a gear shape, a second gear part that is partially meshed under the first gear part, a central shaft part coupled to the center of the first gear part, and the first gear part. It includes a gear portion, the second gear portion, and a cover portion blocking the central shaft portion from the outside.

According to an embodiment of the present invention, a first transmission gear penetrates at a point on an outer surface of the driver unit, a second transmission gear passes at a point on an outer surface of the screw unit, and the first transmission gear and the A third transmission gear is fastened between the 2 transmission gears and rotates in the order of the second transmission gear, the third transmission gear, and the first transmission gear by a first motor coupled to the rear of the screw part.

The central shaft portion according to an embodiment of the present invention is provided with a head groove portion in a diagonal shape along the outer surface so that the screw head can be caught.

According to an embodiment of the present invention, a second motor is coupled to the rear of the second gear unit, and rotates in engagement with the first gear unit and the second gear unit by the second motor, and the frame groove unit and the head The screw is caught in the groove, and the screw moves rearward by rotation of the first gear part and the second gear part.

According to an embodiment of the present invention, the moving part is symmetrical with respect to the screw part in a pair and provided in a cylindrical shape having a hollow part, and the screw moved rearward along the frame groove part and the head groove part It is caught in the screw part and induces movement to the storage part.

According to an embodiment of the present invention, the storage unit is formed to extend from the rear of the movable unit in a pair, and includes a lid through which the screws are stored therein.

According to an embodiment of the present invention, the frame unit further includes a rubber packing portion coupled along an outer surface of the frame unit.

According to the electric driver of the present invention, the frame unit is made of stainless steel, and has a high hardness and light weight so that an operator can hold it with one hand, thereby increasing the efficiency of work.

In addition, since it is small and light in weight so that it can work with one hand, it can be used in various work environments such as home, industrial and professional use, and since it can be used by various age groups and genders, there is an effect of increasing the practicality of the equipment.

In addition, unlike a conventional electric screwdriver, the post-processing after removing the screw is automatically performed inside the frame unit according to the present invention, so a safety accident caused by holding the screw with the other hand or leaving the screw unprotected on one side There is an effect that can prevent.

In addition, since the plurality of screws removed in the storage unit are stored, storage is easy, and there is an effect of solving the problem of loss.

In addition, since the first gear unit has a plurality of holes and can continuously separate the screw, there is an effect of increasing the productivity by increasing the working speed.

In addition, in the present invention, since the rotation direction of the first gear part, the second gear part, and the screw can be adjusted in the opposite direction, there is an effect that the fastening operation can also be performed with an electric driver that sends the screws stored in the storage unit to the front to eject the screws. .

1 is a perspective view of an electric driver according to the present invention.
2 is a perspective view of the head unit of the electric driver according to the present invention.
3 is a part diagram of a head unit of an electric driver according to the present invention.
4A is an enlarged view of the frame unit of the electric driver according to the present invention.
4B is a side view of the frame unit of the electric driver according to the present invention.
5A is a reference diagram for explaining a frame groove of the electric driver according to the present invention.
5B is a reference diagram for explaining a frame groove of the electric driver according to the present invention.
6 is a view for explaining a first transmission gear to a third transmission gear coupled to the driver portion and the screw portion of the electric driver according to the present invention.
7 is a perspective view of a moving part of the electric driver according to the present invention.
8 is a perspective view of a storage unit of the electric driver according to the present invention.
9 is a perspective view of a rubber packing part of the electric driver according to the present invention.
10 is an overall cross-sectional view of the electric driver according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

The terms used in this specification are for describing exemplary embodiments, and therefore, are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, “comprise” and/or “coprising” refers to the recited component, step, operation and/or element being one or more other elements, steps, operations and/or the presence of elements. Or does not exclude additions.

The definitions of terms used below are as follows. "Longitudinal direction" refers to the x-axis direction based on FIG. 1, and "vertical direction" refers to a direction perpendicular to the longitudinal direction. In addition, "front" means a point close to the head unit based on FIG. 1, and "rear" means a point away from the head unit.

Hereinafter, an electric driver according to the present invention will be described with reference to the drawings.

The electric driver according to the present invention includes a frame unit 100 and a head unit 200.

In addition, the frame unit 100 includes a driver unit 110, a screw unit 120, a moving unit 130, a storage unit 140, a frame groove unit 150, and a rubber packing unit 160.

The frame unit 100 includes a hollow part so that the driver part 110, the screw part 120, the moving part 130, the storage part 140, and the frame groove part 150 can be inserted, and when working in a cylindrical shape It can be formed so that it can be held and used with one hand.

In addition, the material of the frame unit 100 is preferably made of a stainless steel material having high strength and high hardness, which is strong against rust and has excellent corrosion resistance. Therefore, it is relatively cost-competitive, and has an advantage of increasing convenience during work with a high hardness and low weight.

Hereinafter, a configuration inserted into the frame unit 100 will be described with reference to FIG. 10.

The driver unit 110 may be inserted parallel to the inside of the frame unit 100 and may be partially exposed to be driven.

The driver unit 110 includes a driver 111, a pulling unit 112, and a spring 113.

The driver 111 is a known component in which a wooden or plastic handle is attached to a steel body used to turn the screw 10 in general, and in the present invention, the driver 111 is a steel for turning a general screw 10 It means zero, and a detailed description will be omitted. The driver 111 is inserted in a shape that can be partially exposed from the front of the frame unit 100, the pulling portion 112 is coupled to the rear, and the spring 113 is coupled to the rear of the pulling portion 112.

At this time, a part of the pulling part 112 penetrates through the outer surface of the frame unit 100 so that the user can move a predetermined length in the vertical direction. That is, the operator can compress the spring 113 by pulling the pulling unit 112 backward by hand.

Accordingly, after loosening the screw 10 using the driver 111, the pulling portion 112 is pulled rearward to move the driver 111 and the screw 10 into the interior of the frame unit 100.

The screw unit 120 is inserted into the frame unit 100 and is positioned under the driver unit 110 so as to be parallel to the driver unit 110.

In addition, the screw unit 120 is provided with a screw 121, a shaft 122, and a first motor (M1).

Therefore, referring to FIG. 10, the cylindrical shaft 122 is coupled to the rear of the screw 121, and the first motor M1 is coupled to the rear of the shaft 122, and the screw is screwed by the first motor M1. 121 can rotate.

Here, referring to FIG. 6, the first transmission gear G1 passes through at a point on the outer surface of the driver 111, and the second transmission at a point on the outer surface of the shaft 122 coupled to the rear of the screw 121 The gear G2 penetrates. In addition, the third transmission gear G3 is fastened between the first transmission gear G1 and the second transmission gear G2.

Accordingly, by driving of the first motor M1, the second transmission gear G2, the third transmission gear G3, and the first transmission gear G1 rotate in this order.

That is, the screw 121 rotates according to the driving of the first motor M1, and the first transmission gear G1 to the third transmission gear G3 transmit rotational force so that the driver 111 can finally rotate. have.

The moving part 130 is provided in a pair in a cylindrical shape including a hollow part. In addition, it is preferably inserted into the frame unit 100 and symmetrical with respect to the screw portion 120.

Therefore, as will be described later, the moving unit 130 may serve as a guide to move the screw 10 moved into the frame unit 100 to the storage unit 140 through the screw unit 120. Detailed driving and effects related to this will be described later.

The storage unit 140 is formed to extend from the rear of each moving unit 130, and has a space to store a plurality of screws 10 therein.

Hereinafter, the head unit 200 will be described with reference to FIGS. 2 to 4.

The head unit 200 is coupled to the front of the frame unit 100.

In addition, the head unit 200 includes a first gear part 210, a second gear part 220, a central shaft part 230, and a cover part 240.

Hereinafter, referring to FIG. 3.

The first gear unit 210 is coupled to the front of the frame unit 100 in a conventional gear shape.

In addition, the first gear part 210 is provided with a first gear plate 211, a first hole 212, a second hole 213, a third hole 214 and a guide part 215.

In detail, the first gear plate 211 is formed in a disk shape having a predetermined thickness in the vertical direction. In addition, the outer surface may be formed of a gear tooth to rotate by meshing with the second gear plate 221 of the second gear unit 220.

It is preferable that the first gear plate 211 has a first hole 212, a second hole 213 and a third hole 214 cut into a circular shape at a predetermined interval in the clockwise direction.

Therefore, the screw 10 in which the driver 111 is penetrated through the first hole 212, the second hole 213 and the third hole 214 can be removed, and the pulling part 112 is pulled. At the same time, it is possible to move the driver 111 and the screw 10 into the frame unit 100 (here, the magnetic property is coupled to the driver 111, so that the coupling force with the screw 10 can be increased) .

In addition, a predetermined length is extended in the vertical direction from the inner surfaces of the first hole 212, the second hole 213 and the third hole 214 to form a first guide 2151, a second guide 2152, and A third guide 2153 is formed.

Therefore, when the screw 10 is moved into the frame unit 100 by the driver 111, each of the first guide 2151 to the third guide 2153 can serve as a guide of the screw 10. have.

In this case, it is preferable that a central axis guide 2154 having a cylindrical shape having a hollow portion and having a predetermined thickness is provided between the first guide 2151 to the third guide 2153.

The central shaft guide 2154 can accommodate the central shaft portion 230 so that when the first gear portion 210 rotates, the coupled central shaft portion 230 also rotates.

In addition, the entire guide 2155 is provided to have the same shape as each of the first guide 2151 to the third guide 2153 and to be coupled to the inner surface from the front of the frame unit 100 (Fig. 3). Reference).

The second gear unit 220 is provided with a second gear plate 221, a shaft 222 and a second motor M2.

The second gear plate 221 has a shape similar to that of the first gear plate 211 and does not have a through hole, and is formed with a diameter smaller than that of the first gear plate 211.

The second gear plate 221 is coupled to the front of the frame unit 100, and the cylindrical shaft 222 is coupled to the rear. In addition, a second motor M2 is coupled to the rear of the shaft 222 (here, the structure of the frame unit 100 is formed to accommodate the shaft 222 and the second motor M2, which Not limited to shape)

Hereinafter, a detailed driving of the head unit 200 will be described with reference to FIGS. 4A and 4B.

4A is a diagram illustrating a state in which only the first gear unit 210 is removed while the frame unit 100 and the head unit 200 are coupled.

In detail, FIG. 4A is a part of the driver 111 exposed to any one of the first hole 212 to the third hole 214 as shown in FIG. 2 to separate the screw 10, and then the pulling part 112 ) Is pulled backward.

At this time, the screw 10 is inserted into the frame unit 100 by the pulling portion 112, and the frame groove 150 and the head groove 231 of the central shaft portion 230 on the inner surface of the frame unit 100 Your head will get stuck.

Accordingly, the screw 10 is moved to contact the screw portion 120 along the frame groove portion 150 and the head groove portion 231.

Referring to FIGS. 5A and 5B to explain the driving principle for this.

First, it is noted that the shapes shown in FIGS. 5A and 5B are not included in the electric driver according to the present invention, but are views for describing the frame groove 150 and the head groove 231.

As shown in Fig. 5A, the head of the screw 10 is fastened to a pair of frames 11a and 11b provided with grooves 12a and 12b formed in an oblique direction.

The head of the screw 10 caught in each of the grooves 12a, 12b goes down due to the shape facing the bottom at an angle of 45 degrees, and is further inserted into the inner side of the pair of frames 11a, 11b (Fig. 5b).

In this way, the frame groove portion 150 and the head groove portion 231 are formed in the same manner as the principle that the screw 10 spanning the groove moves to another position due to the shape that the groove recessed from the inner surface extends in the diagonal direction.

Again, referring to FIG. 4B, the screw 10 inserted into the frame unit 100 by the driver 111 is the screw 10 head inserted into the frame groove 150 and the head groove 231, so that the frame unit It is preferable to move to the inside and the bottom of the 100 and get caught by the screw part 120.

In detail, one end of the central shaft part 230 is inserted into the central shaft guide 2154 of the first gear part 210 so that the first gear part 210 abuts against the second gear part 220 and rotates. The shaft part 230 is also rotated inside the frame unit 100.

Accordingly, the screw 10 caught in the head groove 231 also moves rearward and downward from the inside of the frame unit 100 along the head groove 231 and the frame groove 150 to rotate, and the screw part 120 You get caught.

Such an operation can be used even after combining the cover part 240 in a structure covering the first gear part 210 and the second gear part 220, so that the driver part 110 and the frame unit 100 Since corrosion of the configured shaft can be prevented, there is an effect of prolonging the lifespan.

Next, referring to FIG. 6, the screw 121 and the shaft 122 are continuously rotated by the first motor M1. Accordingly, the screw 10 caught in the front of the screw 121 moves linearly while being caught by the rotating screw 121 and moves to the rear of the frame unit 100 along the moving part 130.

This can be driven through a switch-shaped switch unit 170 provided on the outer surface of the frame unit 100, and the switch unit 170 includes a switch shape having a contact actuated by a conventional electromagnetic force. . Since it is a known technique, a detailed description will be omitted (see FIG. 7).

Here, the moving unit 130 is provided in a pair so as to be symmetrical with respect to the screw 121, and is moved differently according to different standards of the screw 10 so that the screws 10 having different sizes can be stored without being mixed. There is an advantage.

Thereafter, the screw 10 is stored in the storage unit 140 extending from the moving unit 130.

At this time, when the storage unit 140 extends from the moving unit 130, it is located below the moving unit 130 and is rounded so that the movement of the screw 10 can be guided to the storage unit 140 ( See Fig. 7).

Therefore, the operator does not hold and hold the screw 10 removed by hand due to the storage unit 140, and there is an effect of removing a risk factor in the operation.

Accordingly, the screws 10 stored in plurality may be withdrawn from the storage unit 140 through the lid 141.

In addition, referring to Figure 9, the rubber packing unit 160 made of rubber is coupled along the outer surface of the frame unit 100, so that when the operator pulls the pulling unit 112 backward, the rubber packing unit 160 Due to this, there is an advantage that can prevent slipping.

The effects of the present invention are summarized as follows.

First, the frame unit 100 of the present invention is made of stainless steel, and has a high hardness and light weight so that an operator can hold it with one hand, thereby increasing the efficiency of work.

In addition, since it is small and light in weight so that it can work with one hand, it can be used in various work environments such as home, industrial and professional use, and since it can be used by various age groups and genders, there is an effect of increasing the practicality of the equipment.

Second, unlike a conventional electric screwdriver, the post-processing after removing the screw is automatically performed inside the frame unit 100 according to the present invention, so that the screw is held with the other hand or the screw is left unprotected on one side. There is an effect that can prevent safety accidents that occur.

Third, since the plurality of screws removed in the storage unit 140 are stored, storage is easy, and there is an effect of solving the problem of loss.

Fourth, since the first gear unit 210 is provided with a plurality of holes to continuously separate the screw, there is an effect of increasing the productivity by increasing the working speed.

Fifth, in the present invention, the first gear unit 210, the second gear unit 220, and the screw 121 can adjust the rotation direction in the opposite direction, so that the screws stored in the storage unit 140 are sent forward to inject the screw. There is an effect that can also be tightened with an electric screwdriver.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention defined in the following claims are also present. It belongs to the scope of rights of

10: screw, 100: frame unit,
110: driver unit, 111: driver,
112: pulling part, 113: spring,
114: switch, 120: screw part,
121: screw, 122: shaft,
130: moving unit, 140: storage unit,
141: lid portion, 150: frame groove,
160: rubber packing part, 170: switch part,
180: charging unit, 200: head unit,
210: first gear part, 211: first gear plate,
212: first hole, 213: second hole,
214: third hole, 215: guide portion,
2151: first guide, 2152: second guide,
2153: third guide, 2154: central axis guide,
2155: full guide, 220: second gear part,
221: second gear plate, 222: shaft,
230: central axis portion, 231: head groove portion,
240: cover, M1: first motor,
M2: second motor, G1: first transmission gear,
G2: second transmission gear, G3: third transmission gear.

Claims (9)

A cylindrical frame unit having a hollow portion; And
Includes; a head unit coupled to the front of the frame unit,
Inside the frame unit,
Driver unit capable of fastening and loosening screws;
A screw portion that rotates;
A moving part to which the screw is moved by the screw part; And
Includes; a storage unit for storing the removed screw,
The screw is removed by the driver part, and is moved to the storage part along the moving part at the same time as the screw part is caught,
The frame unit,
Further comprising: a frame groove in which the screw head can be caught in an oblique shape from the inner surface toward the rear from the front to which the head unit is coupled;
Electric screwdriver.
delete The method of claim 1,
The head unit,
A gear-shaped first gear portion;
A second gear part that is partially meshed under the first gear part;
A central shaft portion coupled to the center of the first gear portion; And
Including; the first gear portion, the second gear portion, and a cover portion blocking the central shaft portion from the outside;
Electric screwdriver.
The method of claim 3,
The first transmission gear penetrates at a point on the outer surface of the driver unit,
The second transmission gear penetrates at a point on the outer surface of the screw unit,
A third transmission gear is fastened between the first transmission gear and the second transmission gear, and the second transmission gear, the third transmission gear, and the first transmission gear are sequentially connected by a first motor coupled to the rear of the screw unit. Rotating
Electric screwdriver.
The method of claim 4,
The central shaft portion,
A head groove is provided so that the screw head can be caught in an oblique shape along the outer surface.
Electric screwdriver.
The method of claim 5,
A second motor is coupled to the rear of the second gear part, and rotates by meshing with the first gear part and the second gear part by the second motor,
The screw is caught in the frame groove part and the head groove part, and the screw moves backward by rotation of the first gear part and the second gear part.
Electric screwdriver.
The method of claim 6,
The moving part,
It is symmetrical with respect to the screw portion as a pair and is provided in a cylindrical shape having a hollow portion,
The screw moved rearward along the frame groove portion and the head groove portion is caught by the screw portion to induce movement to the storage portion.
Electric screwdriver.
The method of claim 7,
The storage unit,
Doedoe extending from the rear of the moving part in a pair,
Having a lid capable of taking out the screws in which a plurality of pieces are stored
Electric screwdriver.
The method of claim 8,
The frame unit,
Further comprising a; rubber packing portion coupled along the outer surface of the frame unit
Electric screwdriver.

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