KR101077742B1 - Automatic umbrella - Google Patents

Abstract

The present invention relates to an automatic umbrella, and more particularly, to an automatic umbrella that can automatically open and fold an umbrella using a sliding means that expands and contracts by the force of a magnet.

The automatic umbrella according to the present invention includes an umbrella stand, an umbrella meat, a sliding means, a support meat, an auxiliary support meat, and an operation means. The umbrella meat is rotatably coupled to one end of the umbrella stand. The sliding means is stretchable and coupled to slide along the umbrella stand. And the sliding means is provided with a plurality of magnets can be stretched by the magnetic force of the magnet. The support is coupled to one end rotatably to one side of the umbrella meat and the other end to be rotatable to one end of the sliding means. The auxiliary support is coupled to one end rotatably to one side of the support and the other end to be rotatable to the other end of the sliding means. The actuating means expands and contracts the sliding means so that the umbrella meat can rotate about one end of the umbrella stand. The actuating means moves the magnet so that magnetic force or repulsive force of the magnet of the sliding means acts.

Umbrella, magnet, self-folding, self-folding

Description

Automatic umbrella {Automatic umbrella}

The present invention relates to an automatic umbrella, and more particularly, to an automatic umbrella that can automatically open and fold an umbrella using a sliding means that expands and contracts by the force of a magnet.

In the case of the conventional automatic umbrella, the automatic umbrella was folded by contracting the spring used for the sliding means by the force of a person and restraining the contracted spring. When the spring is restrained, the sliding means is stretched and the automatic umbrella is spread out.

Conventional automatic umbrellas were automatically unfolded when the umbrella was opened, but when the umbrella was folded, a person had to contract the sliding means by hand. That is, the conventional automatic umbrella had a problem that it must be folded manually when folded.

In addition, since the conventional automatic umbrella is folded by contracting the spring, a weak person, such as the elderly and children, had a problem that the automatic umbrella could not be properly folded.

The present invention is intended to solve the above problems. It is an object of the present invention to provide an automatic umbrella that can be opened and folded automatically by simply operating a button when the umbrella is folded as well.

The automatic umbrella according to the present invention includes an umbrella stand, an umbrella meat, a sliding means, a support meat, an auxiliary support meat, and an operation means. The umbrella meat is rotatably coupled to one end of the umbrella stand. The sliding means is stretchable and coupled to slide along the umbrella stand. And the sliding means is provided with a plurality of magnets can be stretched by the magnetic force of the magnet. The support is coupled to one end rotatably to one side of the umbrella meat and the other end to be rotatable to one end of the sliding means. The auxiliary support is coupled to one end rotatably to one side of the support and the other end to be rotatable to the other end of the sliding means. The actuating means expands and contracts the sliding means so that the umbrella can rotate about one end of the umbrella stand. The actuating means moves the magnet so that magnetic force or repulsive force of the magnet of the sliding means acts.

In the above automatic umbrella, the sliding means preferably includes a first slider, a second slider, and an auxiliary slider. The first slider is provided with a first magnet and coupled to the other end of the support bar to be rotatable and to slide along the umbrella stand. The second slider is provided with a second magnet and coupled to the other end of the auxiliary support pivotably and slide along the umbrella stand. The auxiliary slider includes a first auxiliary magnet for applying attractive force to the first magnet and the second magnet, and a second auxiliary magnet for applying repulsive force to the first magnet and the second magnet. It is coupled to the sliding along the umbrella stand between the second slider. In this case, the operating means may rotate the auxiliary slide about the umbrella stand so that the first auxiliary magnet or the second auxiliary magnet corresponds to the first magnet and the second magnet.

In addition, in the above automatic umbrella, it is preferable that the operating means includes a first rotating protrusion, a second rotating protrusion, and an operating part. The first rotating protrusion is inserted into the umbrella stand so that the first auxiliary magnet can rotate the auxiliary slide corresponding to the first magnet and the second magnet. The second rotating protrusion is inserted into the umbrella stand so that the second auxiliary magnet can rotate the auxiliary slide corresponding to the first magnet and the second magnet. The operation unit moves the first rotary protrusion or the second rotary protrusion in the axial direction of the umbrella stand. In this case, the auxiliary slider is provided with a slider groove so that the first rotary protrusion or the second rotary protrusion is inserted therein so as to rotate when moved in the axial direction. The umbrella stand has a first rotating projection hole for inserting the first rotating projection and a second rotating projection hole for inserting the second rotating projection.

Further, in the above automatic umbrella, it is preferable that the actuating unit includes an actuating button, a first connector, and a second connector. The operation button is inserted into the umbrella stand to slide along the axial direction of the umbrella stand. The first connector moves the first rotation protrusion in one direction when the operation button slides in one direction. The second connector moves the second rotary protrusion in the other direction when the operation button slides in the other direction. In this case, the umbrella stand is further formed with an operation button hole for the operation button is inserted.

In the above automatic umbrella, it is preferable that the operating means further comprises a first support, a second support, and a third support. The first support is inserted into the umbrella support to support the first rotating projection. The second support is inserted into the umbrella support to support the second rotary projection. The third support is inserted into the umbrella stand to support the operation button. In this case, both ends of the second support are inclined so that the second rotating protrusion does not protrude out of the umbrella stand from both ends of the second support when the second rotary protrusion slides along the axial direction of the umbrella stand.

In addition, in the above automatic umbrella, the operation means preferably further comprises an auxiliary projection connected to the first connector to push the first slider when the operation button is sliding in the one direction. In this case, the umbrella stand further has an auxiliary projection hole for inserting the auxiliary projection.

In addition, in the above automatic umbrella, it is preferable that the operating means further comprises a first spring and a second spring. The first spring is connected to the first connector to return the first connector when the first connector slides in the one direction. The second spring is connected to the second connector to return the second connector when the second connector slides in the other direction. In this case, the first slider is formed by the auxiliary protrusion groove through which the auxiliary protrusion can be inserted in the axial direction.

Moreover, it is preferable that the said automatic umbrella further has a stopper part. The stopper portion includes a stopper and a support spring. The stopper supports the second slider so that the sliding means does not contract when the sliding means is extended. The support spring is inserted into the umbrella stand to support the stopper. In this case, the first connector contracts the support spring so that the stopper does not protrude out of the umbrella stand when sliding in the one direction, and the umbrella stand further includes a stopper hole for inserting the stopper.

In addition, in the above automatic umbrella, the auxiliary slider is preferably inserted into the second slider so that the auxiliary slider can rotate only within a predetermined angle within the second slider.

In the above automatic umbrella, it is preferable that the second slider has a convex protrusion formed at an end portion to restrain the auxiliary slider in the axial direction. In this case, the auxiliary slider is further confined to the restraining protrusion, and a rotation preventing jaw is further formed at the end to rotate only in the predetermined angle range.

In the above automatic umbrella, the auxiliary slider is preferably constrained to allow the first auxiliary magnet and the second auxiliary magnet to slide within a predetermined range in the axial direction.

According to the present invention, by simply operating the operation button up and down, the umbrella can be opened or folded automatically.

In addition, according to the present invention, people with weak strength, such as elderly people can easily open and fold the umbrella.

1 is a conceptual diagram of an automatic umbrella according to the present invention, Figure 2 is a conceptual diagram of the umbrella stand of the embodiment shown in Figure 1, Figure 3 is a conceptual diagram of the sliding means shown in FIG. 4 is a perspective view of the first slider and the auxiliary slider of the sliding means shown in FIG. 1, FIG. 5 is a cross-sectional view of the auxiliary slider and the second slider as shown in FIG. This is the first operation of the umbrella. 7 is a conceptual diagram of a first connector and a second connector of the embodiment shown in FIG. 1, FIG. 8 is a second operation diagram of the embodiment shown in FIG. 1, and FIG. 9 is a third view of the embodiment shown in FIG. 1. It is also working. 10 is a fourth operation diagram of the embodiment shown in FIG. 1.

The automatic umbrella according to the present invention is an umbrella stand 10, an umbrella bar 1, a support bar 3, an auxiliary support bar 5, a sliding unit 20, an operating unit 40, a stopper. The unit 70 is provided.

The sliding means 20 includes a first slider 21, a second slider 25, and an auxiliary slider 30. The first slider 21 is coupled to the umbrella stand 10 so as to slide along the umbrella stand 10. In addition, the first slider 21 includes a first magnet 22, and an auxiliary protrusion groove 23 is formed therein, and one end 3b of the support bar 3 rotates at one end 24. Can be combined. The second slider 25 may accommodate the auxiliary slider 30 therein, and is coupled to the umbrella stand 10 so as to slide along the umbrella stand 10. The second slider 25 includes a second magnet 27, and one end of the second slider 25 is provided with a restraining protrusion 26 for restraining the auxiliary slider 30 in the axial direction. The constraining protrusion 26 is formed inward along the circumferential direction at one end of the second slider 25. One end 5b of the auxiliary support 5 is coupled to one end of the second slider 25 so as to rotate.

The auxiliary slider 30 is accommodated in the second slider 25 and is coupled to the umbrella stand 10 so as to slide along the umbrella stand 10. The auxiliary slider 30 includes a first auxiliary magnet 31 and a second auxiliary magnet 32, a slider groove 34 is formed therein, and a rotation preventing jaw 35 is formed at one end thereof. The first auxiliary magnet 31 acts on the first magnet 22 and the second magnet 27 and the attraction force, the second auxiliary magnet 32 is the first magnet 22 and the second magnet 27 and the repulsive force To act. In addition, the first auxiliary magnet 31 and the second auxiliary magnet 32 may slide within a predetermined range in the axial direction in the auxiliary slider 30. The slider groove 34 is formed spirally along the axial direction. The anti-rotation jaw 35 serves to constrain the rotation so that the auxiliary slider 30 rotates only within a predetermined angle range in the second slider 25. The second slider 25 is formed with a restraining protrusion 26 in the circumferential direction at one end thereof, but a part of the second slider 25 has no restraining protrusion 26. The anti-rotation jaw 35 of the auxiliary slider 30 is formed in the auxiliary slider 30 so as to be located at a portion where the restraint protrusion 26 is not formed. The auxiliary slider 30 may rotate left and right within the second slider 25, but may not rotate when the anti-rotation jaw 35 collides with the restraining protrusion 26. Therefore, the anti-rotation jaw 35 may move only in the region where the restraint protrusion 26 is not formed, and thus the auxiliary slider 30 may rotate only within a predetermined angle range in the second slider 25.

The actuating means 40 includes a first rotating protrusion 41, a second rotating protrusion 43, an operating part 45, a first support 53, a second support 55, and a third support. 57, the auxiliary projection 61, the 1st spring 63, and the 2nd spring 65 are provided.

The first rotary protrusion 41 is installed on the umbrella stand 10 so that the first auxiliary magnet 31 can rotate the auxiliary slider 30 corresponding to the first magnet 22 and the second magnet 27. That is, the first rotary protrusion 41 protrudes from the inside of the umbrella stand 10 and is inserted into the slider groove 34 of the auxiliary slider 30. In this case, when the first rotary protrusion 41 moves in the axial direction, the slider groove 34 is formed in a spiral shape so that the auxiliary slider 30 rotates about the axis. When the auxiliary slider 30 rotates about an axis by the movement of the first rotating protrusion 41, the first auxiliary magnet 31 is positioned between the first magnet 22 and the second magnet 27 to attract the attraction force. This works. The sliding means 20 contracts by narrowing the interval between the first slider 21 and the second slider 25 by the attraction force.

The second rotary protrusion 43 is installed on the umbrella stand 10 so that the second auxiliary magnet 32 can rotate the auxiliary slider 30 corresponding to the first magnet 22 and the second magnet 27. That is, the second rotary protrusion 43 may protrude from the umbrella stand 10 and be inserted into the slider groove 34 of the auxiliary slider 30. In this case, when the second rotary protrusion 43 moves in the axial direction, the slider groove 34 is formed in a spiral shape so that the auxiliary slider 30 rotates about the axis. When the auxiliary slider 30 rotates about the axis by the movement of the second rotary protrusion 43, the second auxiliary magnet 32 is positioned between the first magnet 22 and the second magnet 27 to repulse the force. This works. By the repulsive force, the distance between the second slider 21 and the second slider 25 is widened so that the sliding means 20 extends.

The operation unit 45 includes an operation button 46, a first connector 47, and a second connector 50. The operation button 46 is inserted into the umbrella stand 10 near the handle to slide along the axial direction of the umbrella stand 10. The first connector 47 is configured to move in one direction when the operation button 46 slides in one direction (in this case, means a handle direction) so that the first rotation protrusion 41 can be moved in the one direction. It is connected to the rotary projection (41). In addition, the first connector 47 does not move when the operation button 46 slides in the other direction (in this case, the opposite direction to the handle). To this end, the first connector 47 is formed with a first groove 47a, a second groove 47b, and a third groove 47c. The first groove 47a serves to contract the support spring 73 of the stopper part 70 described below when the first connector 47 slides in the one direction, and the second groove 47b is the first connector (b). Even if 47 slides, the second rotary protrusion 43 does not move, and the third groove 47c moves the first connector 47 only when the operation button 46 slides in one direction. It plays a role. To this end, the first groove 47a is formed to insert the support spring 73. The second rotary protrusion 43 is inserted into the second groove 47b and the second groove 47b is sufficiently large so as not to interfere with the second rotary protrusion 43 even if the first connector 47 moves in the one direction. Is formed. The operation button 46 is inserted into the third groove 47c and the third groove 47c is formed so as not to interfere with the operation button 46 even if the operation button 46 moves in the other direction. When the operation button 46 slides in the other direction, the second connector 50 moves in the other direction so that the second rotation protrusion 43 moves the second rotation protrusion 43 in the other direction. Connected with. The second connector 50 does not move when the operation button 46 slides in one direction. To this end, the first connector 50a is formed in the second connector 50. At this time, when the second connector 50 moves in the other direction, the second rotating protrusion 43 is projected to the outside of the umbrella stand 10 and moved to form the second support 55 described below to be inserted into the umbrella stand 10 again. Can be uneven. The operation button 46 is inserted into the first groove 50a, and the first groove 50a is formed so as not to interfere even if the operation button 46 moves in the one direction. Accordingly, when the operation button 46 moves in the one direction, only the first connector 47 moves in the one direction to move the first rotary protrusion 41, and when the operation button 46 moves in the other direction. Only the second connector 50 moves in the other direction to move the second rotary protrusion 43. When the first rotary protrusion 41 moves in the one direction, the auxiliary slider 30 rotates so that the first auxiliary magnet 31 is positioned between the first magnet 22 and the second magnet 27. When the second rotary projection 43 moves in the other direction, the auxiliary slider 30 rotates in the opposite direction so that the second auxiliary magnet 32 is positioned between the first magnet 22 and the second magnet 27.

The first spring 63 is connected to the first connector 47 so that the first connector 47 can return it when the first connector 47 moves in the one direction.

The second spring 65 is connected to the second connector 50 so that the second connector 50 can return when the second connector 50 moves in the other direction.

The auxiliary protrusion 61 is inserted into the umbrella stand 10 so as to push the first slider 21 when the first connector 47 moves in the one direction and is connected to the first connector 47. In other words, the auxiliary projection 61 serves to assist the contraction of the sliding means 20.

The first support 53 is inserted into the umbrella stand 10 to support the first rotating protrusion 41 and the auxiliary protrusion 61. And the end of the first support 53 is inclined so that the first rotary protrusion 41 can be completely inserted into the umbrella stand 10 when moving in one direction.

The second support 55 is inserted into the umbrella stand 10 to support the second rotating protrusion 43. In addition, the second support 55 has the second rotary protrusion 43 completely inserted into the umbrella stand 10, and then the second rotary protrusion 43 protrudes out of the umbrella stand 10 when the second rotary protrusion 43 moves in the other direction, and then again the umbrella stand. (10) Both ends 55a and 55b are inclined so as to be fully inserted into the inside.

The third support 57 is inserted into the umbrella stand 10 to support the operation button 46.

The stopper part 70 includes a stopper 71 and a support spring 73. The stopper 71 is inserted into the umbrella stand 10 so as to support the second slider 25 so that the sliding means 20 does not contract when the sliding means 20 is extended. The support spring 73 is inserted into the first groove 47a of the first connector 47 inside the umbrella stand 10 so as to support the stopper 71. The stopper 71 is supported by the support spring 73 when the sliding means 20 is extended to prevent the second slider 25 from moving in one direction. However, when the first connector 47 is moved in one direction by the operation button 46, the support spring 73 interferes with the first connector 47 and contracts, thereby causing the stopper 71 to move toward the umbrella stand 10. It is inserted completely inside.

The umbrella stand 10 has an auxiliary projection hole 16 for protruding from the inside of the umbrella stand 10, the auxiliary projection 61, the first rotating projection 41 is a first projection for protruding from the inside of the umbrella stand (10) The rotary projection hole 11 is formed. A stopper hole 17 for protruding the stopper 71 from the inside of the umbrella stand 10 is formed, and a second rotation protrusion hole 13 for protruding the second rotation protrusion 43 is formed, and the operation is performed. An operation button hole 15 for protruding the button 46 is formed.

One end 3a is rotatably coupled to one side of the umbrella string 1, and the other end 3b is rotatably coupled to one end 24 of the first slider 21.

The auxiliary support 5 is coupled to one end (5a) to rotate on one side of the support 3, the other end (5b) is rotatably coupled to one end of the second slider (25). Therefore, when the distance between the first slider 21 and the second slider 25 is narrowed, the sliding means 20 moves in the one direction so that the umbrella is folded. And when the space | interval between the 1st slider 21 and the 2nd slider 25 becomes wide, the sliding means 20 moves to another direction of the said umbrella, and an umbrella is spread out.

The following describes the operation of this embodiment.

6 is an unfolded automatic umbrella according to the present embodiment. In this case, the second auxiliary magnet 32 is located between the first magnet 22 and the second magnet 27 so that the repulsive force acts. Thus, the first slider 21 is opened from the second slider 25 so that the sliding means 20 is extended, and the stopper 71 supports the second slider 25.

At this time, the user moves the operation button 46 in the A direction. Then, the second connector 50 is still, and the first connector 47 moves in the A direction by the operation button 46. The support spring 73 contracts by the first connector 47 so that the stopper 71 is completely inserted into the umbrella stand 10. In addition, the first rotary protrusion 41 moves in the A direction. When the first rotary protrusion 41 moves in the A direction, the auxiliary slider 30 rotates so that the first auxiliary magnet 31 is positioned between the first magnet 22 and the second magnet 27 so that the attraction force is increased. Works. Then, as shown in FIG. 8, the first slider 21 approaches the second slider 25 so that the sliding means 20 contracts and moves in the A direction.

9 is a state in which the sliding means 20 is completely moved, the automatic umbrella is folded. At this time, the user moves the operation button 46 in the B direction. Then, the first connector 47 is still, and the second connector 50 moves in the B direction by the operation button 46. When the second connector 50 moves in the B direction, the second rotary protrusion 43 protrudes out of the umbrella stand 10 to move along the slider groove 34 of the auxiliary slider 30 and then again to the umbrella stand ( 10) It is fully inserted into the inside. When the second rotary protrusion 43 moves along the slider groove 34, the auxiliary slider 30 rotates so that the second auxiliary magnet is positioned between the first magnet 22 and the second magnet 27 to repulse. This works. Then, as shown in FIG. 10, the first slider 21 moves away from the second slider 25 so that the sliding means 20 extends and moves in the B direction. Since the auxiliary protrusion groove 23 is formed in the first slider 21, the first slider 21 may move to the auxiliary protrusion 61 through the stopper 71 and the first rotary protrusion 41. . In addition, the second slider 25 and the auxiliary slider 30 move in the B direction as shown in FIG. 6. Since the stopper 71 is supported by the support spring 73, the support spring 73 contracts when the second slider 25 and the auxiliary slider 30 move so that the stopper 71 is moved into the umbrella stand 10. The two sliders 25 and the auxiliary sliders 30 may move to the position shown in FIG. 6.

1 is a conceptual diagram of an automatic umbrella according to the present invention,

2 is a conceptual diagram of an umbrella stand of the embodiment shown in FIG.

3 is a conceptual view of the sliding means shown in FIG.

4 is a perspective view of the first slider and the auxiliary slider of the sliding means shown in FIG.

FIG. 5 is a cross-sectional view of the auxiliary slider and the second slider viewed from FIG. 3 in X-X;

FIG. 6 is a first operation diagram of the automatic umbrella shown in FIG. 1;

7 is a conceptual diagram of a first connector and a second connector of the embodiment shown in FIG.

8 is a second operation diagram of the embodiment shown in FIG. 1;

9 is a third operation diagram of the embodiment shown in FIG. 1;

FIG. 10 is a fourth operation diagram of the embodiment shown in FIG. 1.

<Brief Description of Drawings>

1: Umbrella 3: Support

5: auxiliary support 10: umbrella stand

11: first rotating projection hole 13: second rotating projection hole

15: operating button groove hole 16: auxiliary projection hole

17: stopper hole 20: sliding means

21: First slider 22: The first magnet

23: auxiliary projection groove 25: the second slider

26: restraint protrusion 27: the second magnet

30: auxiliary slider 31: the first auxiliary magnet

32: 2nd auxiliary magnet 34: slider groove

35: anti-rotation jaw 40: operating means

41: the first rotating projection 43: the second rotating projection

45: operating part 46: operating button

47: first connector 50: second connector

53: first support 55: second support

57: third support 61: auxiliary projection

63: first spring 65: second spring

70: stopper part 71: stopper

73: support spring

Claims (11)

Umbrella stand, and the umbrella arm rotatably coupled to one end of the umbrella stand, Sliding means coupled to the elastic and sliding along the umbrella stand, One end is coupled to rotate on one side of the umbrella meat and the other end is the sliding means A support bar that can be pivotally coupled to one end of the support bar, one end of which is pivotally coupled to one side of the support bar, and the other end of the support bar that is coupled to pivot to the other end of the sliding means; In the automatic umbrella including an operating means for stretching the sliding means to rotate about the, The sliding means has a plurality of magnets and can be stretched by the magnetic force of the magnet, The operation means is an automatic umbrella, characterized in that for moving the magnet so that the magnetic force or the repulsive force of the magnet of the sliding means acts. The method of claim 1, The sliding means is provided with a first magnet and the other end of the support body is rotatably coupled, the first slider and the second magnet coupled to be slidably coupled along the umbrella stand, and the other end of the auxiliary support arm can be rotated A second slider coupled to slide along the umbrella stand, and a first auxiliary magnet and a first magnet acting on the first magnet and the second magnet, and the first magnet and the second magnet to repulse. A secondary slider having a second auxiliary magnet and coupled to slide along the umbrella stand between the first slider and the second slider, The operation means is an automatic umbrella, characterized in that for rotating the auxiliary slider about the umbrella stand so that the first auxiliary magnet or the second auxiliary magnet corresponds to the first magnet and the second magnet. 3. The method of claim 2, The operating means includes a first rotating protrusion inserted into the umbrella stand so that the first auxiliary magnet rotates the auxiliary slider corresponding to the first magnet and the second magnet, and the second auxiliary magnet is the first magnet. And a second rotating protrusion inserted into the umbrella stand so as to rotate the auxiliary slider corresponding to the second magnet, and an operation unit for moving the first rotating protrusion or the second rotating protrusion in the axial direction of the umbrella stand. , The auxiliary slider has a slider groove is formed to be rotated when the first rotary protrusion or the second rotary protrusion is inserted in the axial direction. The umbrella stand is an automatic umbrella, characterized in that the first rotating projection hole for the first rotation projection is inserted, and the second rotation projection hole for the second rotation projection is formed. The method of claim 3, The operation unit may include an operation button inserted in the umbrella stand to slide along the axial direction of the umbrella stand, a first connector for moving the first rotation protrusion in the one direction when the operation button slides in one direction, and It is provided with a second connector for moving the second rotary projection in the other direction when the operation button sliding in the other direction, The umbrella stand is an automatic umbrella, characterized in that the operation button hole is further formed for insertion of the operation button. The method of claim 4, wherein the operating means A first support inserted into the umbrella stand to support the first rotating protrusion; A second support inserted into the umbrella stand to support the second rotating protrusion; Further provided with a third support inserted into the umbrella stand to support the operation button, The second support is an automatic umbrella, characterized in that both ends are inclined so that the second rotary projection does not protrude out of the umbrella stand from both ends of the second support when sliding along the axial direction of the umbrella stand. The method of claim 5, The actuating means further includes an auxiliary protrusion connected to the first connector to push the first slider when the actuation button slides in the one direction. The umbrella stand is an automatic umbrella, characterized in that the auxiliary projection hole is further formed for insertion of the auxiliary projections The method of claim 6, The actuating means includes a first spring connected to the first connector to return it when the first connector slides in the one direction, and a second spring connected to the second connector to return it when the second connector slides in the other direction. It is further provided with a second spring, The first slider is an automatic umbrella, characterized in that the auxiliary projection groove through which the auxiliary projection can be inserted is formed through the axial direction. The method of claim 7, wherein And a stopper portion having a stopper for supporting the second slider so that the sliding means is not contracted when the sliding means is extended, and a support spring inserted into the umbrella stand to support the stopper. The first connector contracts the support spring so that the stopper does not protrude out of the umbrella when sliding in the one direction. The umbrella stand is an automatic umbrella, characterized in that the stopper hole is further formed for insertion of the stopper. The method of claim 8, The auxiliary slider is an automatic umbrella, characterized in that inserted into the second slider so as to rotate only within a certain angle within the second slider. 10. The method of claim 9, The second slider is formed with a restraining protrusion at the end to restrain the auxiliary slider in the axial direction, The auxiliary slider is an automatic umbrella, characterized in that the anti-rotation jaw is further formed at the end in order to be constrained to the restraint projection to rotate only in the predetermined angle range. The method of claim 10, The auxiliary slider is an automatic umbrella, characterized in that the first auxiliary magnet and the second auxiliary magnet is restrained to slide in a predetermined range in the axial direction.

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