KR20150106290A - Hood latch apparatus for walker protection - Google Patents

Abstract

A hood latch apparatus for protecting a passenger is disclosed. According to the present invention, the hood latch apparatus for protecting a passenger comprises: a base having an opening; a latch gear having a mounting groove unit restraining a striker accessed through the opening; a foul installed to be rotated in the base and restraining rotation of the latch gear with a motion engaged with the latch gear; and a link unit installed to be rotated in the base and the foul and rotating the foul to restrain upward movement of the latch gear while coming in contact with the latch gear to be rotated.

Description

[0001] HOOD LATCH APPARATUS FOR WALKER PROTECTION [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a hood latch device for protecting a pedestrian, and more particularly, to a hood latch device for protecting a pedestrian when a pedestrian falls on a hood of a vehicle, To a hood latch device for protection.

Generally, the automobile is provided with a hood which is also used as a sound insulation function for engine noise while protecting the engine room, and the hood is hinged to the vehicle body and is rotatably installed. The hood is connected to a button or a lever in the vehicle through a wire, and has a structure in which the hood is unlocked by pulling the wire according to the operation of the button or the lever.

The hood is structured to be locked in two stages by a hood latch and a safety hook, so that in order to release the locked hood, the hood can be opened only after unlocking the hood latch first and then manually operating the safety hook.

The hood has a two-stage locking structure to prevent sudden opening of the hood due to the running wind while the hood latch is not fully locked.

In the conventional latch device, a latch gear having a mounting groove portion formed in a base plate having an opening formed thereon and a foul portion for restricting a latching end of the latch gear are rotatably installed.

The foul is released from the restraint of the latch gear by receiving the rotational force from the handle, thereby opening the hood.

The latch gear is provided with a first latching portion and a second latching portion, and the latch gear which restrains the striker forms a two-step restrained state by the fouls.

When the striker enters the mounting groove portion of the latch gear, the latch gear is rotated in one direction, and the foul is caught by the first engaging portion of the latch gear, thereby forming the one-step restrained state.

When the latch gear is completely rotated by being pushed by the striker, the foul is caught by the second engaging portion of the latch gear, thereby forming the two-step restrained state.

The releasing force is transmitted to the foul so as to move the latch gear from the locked position in the two-step restrained state to the unlocked position, thereby separating the foul from the latch gear.

When the foul is separated from the latch gear, when the opening force is applied to the latch gear, the latch gear rotates in the separating direction and the striker is separated from the latch gear.

Background Art [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2007-0062304 (published on June 15, 2007, entitled Hood Latch for Automobile).

Conventionally, since the striker is constrained to the latch device and the downward movement of the hood is restrained, the pedestrian's injury is increased when the head of the pedestrian falls into the hood of the vehicle due to a collision between the pedestrian and the vehicle. Therefore, there is a need for improvement.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a pedal crane capable of reducing the injury of a pedestrian by permitting a downward movement of a scraper attached to a hood, The present invention provides a hood latch device for pedestrian protection.

A hood latch device for protecting a pedestrian according to the present invention includes: a latch gear having a base on which an opening is formed; and a mounting groove for restricting the striker that has entered through the opening, an operation of engaging with the latch gear And a link portion which is rotatably mounted on the base and the foul portion for restricting the rotation of the latch gear and rotates in contact with the latch gear to rotate the foul so as to restrain the upward movement of the latch gear.

The latch gear includes a latch body rotatably installed on the base, a first engaging portion located on the upper side of the striker protruding from the latch body and located in the mounting groove portion, and spaced apart from the first engaging portion and the first engaging portion, And a second latching portion protruding from the side surface of the latch body and positioned below the striker located in the mounting groove portion and rotated together with the latch body to move the link portion.

Preferably, the latch gear includes a first support shaft installed through the latch body and the base, and a latch extension extending from the latch body and connected to the first elastic member.

The first elastic member is preferably connected to both the base and the latch extension so as to supply elastic force for rotating the latch gear in the clockwise direction.

Further, it is preferable that the mounting groove portion is located between the first latching portion and the second latching portion, and the first latching portion is bent to be inclined clockwise around the latch body.

Further, the foul includes a foul body which is rotatably installed on the base, and a stumbling block which restrains the movement of the first engaging portion which is pushed from the lower side to the upper side by being in contact with the first engaging portion protruding from the foul body and moving from the upper side to the lower side. And a connection protrusion protruding from the body and the foul body and connected to the link portion.

Further, it is preferable that the locking protrusion forms a guide curved surface which is pushed in contact with the first locking portion, and the lower side where the first locking portion moving upward along the mounting groove portion is engaged forms the locking protrusion.

It is also preferable that the fouls further include a second elastic member which is connected to both the base and the foul body so as to supply an elastic force for rotating the foul body clockwise.

The link portion preferably includes a first link rotatably connected to the base and a second link rotatably connected to the first link and the connection protrusion.

It is also preferable that the first link and the second link are connected in an "a" shape.

The first link may be rotated while being pushed by the second engaging portion moving downward along the mounting groove portion to move the second link connected to the foul.

Further, it is preferable that a clearance space for moving the striker is provided below the second latching portion in a state where the first latching portion is caught by the latching projection.

The hood latch device for pedestrian protection according to the present invention is provided with a clearance space for allowing the striker to move downwardly between the striker and the base at the locked position where the striker is restrained by the latch gear, The striker is moved to the lower side together with the hood so that the injury of the pedestrian can be reduced.

1 is a perspective view schematically illustrating a hood latch device for protecting a pedestrian according to an embodiment of the present invention.
2 is an exploded perspective view of a hood latch device for pedestrian protection according to an embodiment of the present invention.
3 is a front view of a hood latch device for pedestrian protection according to an embodiment of the present invention.
4 is a rear view of a hood latch device for pedestrian protection according to an embodiment of the present invention.
5 is a front view showing a state where the striker according to the embodiment of the present invention is positioned above the safety lock portion.
6 is a front view showing a state in which the striker according to the embodiment of the present invention is moved downward while pushing the safety lock part.
7 is a front view schematically showing a state in which the latch gear according to the embodiment of the present invention strikes the upper side of the foul while being rotated by the fall of the striker.
FIG. 8 is a front view schematically showing a state in which the first latching portion of the latch gear is moved downward along the latching protrusion of the foul according to an embodiment of the present invention. FIG.
9 is a front view schematically showing a state in which a second latch portion of the latch gear strikes a link portion according to an embodiment of the present invention.
10 is a front view schematically showing a state in which a latch gear according to an embodiment of the present invention is restrained upward by being hung on a hook of a foul after being rotated upward after hitting a link portion.
11 is a front view schematically showing a state in which the striker is moved downward from a locked position according to an embodiment of the present invention.
12 is a front view schematically showing a state in which a striker according to an embodiment of the present invention is moved to a spare space together with a latch gear.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hood latch apparatus for protecting a pedestrian according to an embodiment of the present invention will be described with reference to the accompanying drawings. For convenience of explanation, a hood latch device for pedestrian protection installed in a passenger car is taken as an example. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

Further, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view schematically illustrating a hood latch device for protecting a pedestrian according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a hood latch device for protecting a pedestrian according to an embodiment of the present invention, 3 is a front view of a hood latch device for protecting a pedestrian according to an embodiment of the present invention, Fig. 4 is a rear view of a hood latch device for protecting a pedestrian according to an embodiment of the present invention, Fig. 6 is a front view showing a state in which a striker according to an embodiment of the present invention is moved downward while pushing a safety lock portion, and FIG. 7 is a front view showing a state in which a striker according to an embodiment of the present invention is moved downward, Is a front view schematically showing a state in which the latch gear according to the embodiment of the present invention strikes the upper side of the foul while being rotated by the fall of the striker, FIG. 9 is a front view schematically showing a state in which the first latching part of the latch gear is moved downwardly by the fulcrum of the pawl according to an embodiment of the present invention. FIG. 10 is a front view schematically showing a state in which the upper portion of the latch gear is hammered by the latch portion of the fulcrum of the latch gear according to an embodiment of the present invention, 11 is a front view schematically showing a state in which the striker is moved from a locked position to a downward position according to an embodiment of the present invention, and FIG. 12 is a front view of the striker according to an embodiment of the present invention, Fig. 2 is a front view schematically showing a state of being moved to a free space.

1 to 4, a hood latch device 1 for protecting a pedestrian according to an embodiment of the present invention includes a base 10, a latch gear 20, a foul 30, a link portion 40, a safety lock portion 50, a switch portion 60, and a cover portion 70.

The base 10 may be formed in various shapes within the technical idea of forming the opening 12 for the striker 80 to move up and down (refer to FIG. 2). The base 10 according to one embodiment is formed in a plate shape, and an opening 12 through which the striker 80 is moved is formed in a vertical direction. The upper side of the opening portion 12 is open and the lower side thereof is closed.

A latch gear 20 is rotatably installed on the right side of the base 10 and a foul 30 is provided on the left side of the base 10. The base 10 is provided with a first connection hole 14 through which the first support shaft 26 of the latch gear 20 passes and a second connection hole 14 through which the second support shaft 37 of the foul 30 is inserted And a third connection hole 18 through which the third support shaft 57 of the safety lock portion 50 passes.

The latch gear 20 may be formed in various shapes within the technical idea having the mounting groove 24 for restricting the striker 80 that has entered through the opening 12. [ The latch gear 20 according to one embodiment includes a latch body 21, a first latching portion 22, a second latching portion 23, a mounting groove portion 24, a latch extension piece 25, (26), and a first elastic member (27).

The latch body 21 is rotatably mounted on the base 10. The first support shaft 26 is installed in such a manner as to penetrate through the cover body 70 separated from the base 10, the latch body 21 and the base 10 in order.

The first latching part 22 is located on the upper side of the striker 80 protruding from the latch body 21 and located in the mounting groove 24. The first latching part 22 is deformed into various shapes within the technical idea of contacting the foul 30 at the locking position. . The first latching portion 22 according to an embodiment is bent obliquely in the clockwise direction about the latch body 21. [ The first latching portion 22 and the second latching portion 22 are provided at one side (left side in FIG. 2) of the latch body 21 with reference to the rotation center of the latch body 21 through which the first support shaft 26 passes, 23 and the mounting groove 24 are positioned and the latch extension piece 25 is positioned on the other side (reference right side in FIG. 2) of the latch body 21.

The first latching portion 22 extends along the second latching portion 23 in the direction away from the center of rotation of the latch body 21 with the mounting groove portion 24 therebetween, The ends are bent obliquely in the clockwise direction. Therefore, when the first latching part 22 is positioned toward the upper side, the first latching part 22 contacts the striker 80 moving from the upper side to the lower side, The latch body 21 is also rotated to allow the striker 80 to move downward.

The second latching part 23 is spaced apart from the first latching part 22 and protrudes from the side surface of the latch body 21 and is positioned below the striker 80 located in the mounting groove part 24. [ In addition, the second latching part 23 may be formed in various shapes within the technical idea of rotating the link part 40 together with the latch body 21 together. The second latching part 23 according to an embodiment is disposed in parallel with the first latching part 22 with the mounting groove part 24 interposed therebetween and is rotated together with the latching body 21 to rotate the linking part 40 So that the foul 30 connected to the link portion 40 is rotated.

The mounting groove portion 24 is located between the first and second engaging portions 22 and 23 and is provided with an engaging portion for engaging the striker 80 which is moved up and down through the opening portion 12 of the base 10 Thereby forming a groove portion.

The latch extension piece 25 is deformed into various shapes within the technical idea extending from the latch body 21 to the opposite side of the first latching part 22 and the second latching part 23 and connected to the first elastic member 27. [ . The latch extension 25 according to one embodiment extends to the other side of the latch body 21 and is connected to the other side of the first elastic member 27.

The first elastic member 27 uses a tension spring and is connected to both the base 10 and the latch extension 25 to supply the elastic force for rotating the latch gear 20 clockwise.

The foul 30 is rotatably installed on the base 10 and can be formed in various shapes within a technical concept of restricting rotation of the latch gear 20 by engaging with the latch gear 20. The foul 30 according to one embodiment includes a foul body 31, a locking protrusion 32, a connecting protrusion 35, a foul extending piece 36, a second support shaft 37, a second elastic member 38, .

The foul body 31 is provided on the side opposite to the latch gear 20 with the opening 12 therebetween. The foul body 31 according to one embodiment is rotatably installed on the left side of the base 10. The second support shaft 37 passes through the cover portion 70 and the foul body 31 and the second connection hole 16 of the base 10 in this order. Two elastic members 38 are provided.

Various types of elastic devices may be used in the second elastic member 38 in the art for supplying the elastic force for rotating the foul body 31 in the clockwise direction by being connected to both the base 10 and the foul body 31 . The second elastic member 38 is formed in a coil spring shape and one side of the second elastic member 38 is fixed to the base 10 and the other side of the second elastic member 38 is fixed to the fulcrum body 38. [ (31) and is moved together with the foul body (31).

When the opening 12 provided in the base 10 is positioned in the vertical direction, the foul body 31, which is rotatably installed on the base 10, is also positioned in the vertical direction.

The latching protrusion 32 protrudes in the direction from the upper side of the foul body 31 toward the latch gear 20 and contacts the first latching portion 22 moving from the upper side to the lower side and is pushed or moved from the lower side to the upper side And may be formed in various shapes within the technical concept of restricting the movement of the first latching portion 22. [ The locking protrusion 32 according to the embodiment is formed by forming a guide curved surface 33 on the upper side which is pushed against the first locking portion 22 and includes a first locking portion 22 Is formed on the lower side. The engaging protrusion 32 can move downward while pushing the foul body 31 in the counterclockwise direction while the first engaging portion 22 of the latch gear 20 rotating from the upper side to the lower side contacts the guide curved surface 33 . The first latching portion 22 rotating from the lower side to the upper side is caught by the latching jaw 34 of the latching protrusion 32 so that the upward rotation of the latching body 21 is restricted and the striker 80 is locked .

The connecting protrusions 35 may be formed in various shapes within a technical concept that protrudes to the lower side of the foul body 31 and is connected to the link portion 40. The connecting protrusion 35 according to the embodiment is positioned below the foul body 31 about the portion where the second supporting shaft 37 is connected to the foul body 31, And is inclined at an obtuse angle with the foul body 31 extending upward.

A foul extending piece 36 is provided on the opposite side of the fulcrum body 31 from the locking protrusion 32. The foul extending piece 36 is connected to the cable and thus is rotated counterclockwise by an external force.

The second elastic member 38 wound around the second support shaft 37 supplies an elastic force for rotating the foul body 31 in the clockwise direction.

The link portion 40 is rotatably mounted on the base 10 and the foul 30 and rotates in contact with the latch gear 20 to rotate the foul 30 to restrain the upward movement of the latch gear 20 Various kinds of links can be used within the concept of technology. The link portion 40 according to one embodiment includes a first link 42 rotatably connected to the base 10 and a second link 42 rotatably connected to the first link 42 and the linking protrusion 35 And a second link (46).

The first link 42 and the second link 46 are connected in a "? &Quot; shape, and a first connection pin 44 is connected to a portion where the first link 42 and the second link 46 are connected do. The first link 42 is rotated while being pushed by the second engaging portion 23 moving downward along the mounting groove portion 24 to move the second link 46 connected to the foul 30, ) Is also rotated in conjunction with the second link (46).

The first link 42 is rotatably connected to a third support shaft 57 serving as the rotation center of the safety lock portion 50 and the other portion of the first link 42 is rotatably supported by the second link 46 1 connection pin (44).

Since the second link 46 is rotatably connected to the coupling projection 35 by the second coupling pin 47, the second link 46 is engaged with the fulcrum body 31 including the coupling projection 35 in conjunction with the movement of the link portion 40 .

Various types of locking devices may be used in the art for preventing upward movement of the striker 80 that is moved to the upper side of the base 10 through the opening 12 of the base 10 by being caught by the safety locking portion 50 have. The safety locking part 50 according to the embodiment includes the safety locking body 51, the locking hook 52 and the guide protrusion 55, the safety feeling cigarette smoking piece, the third supporting shaft 57 and the third elastic member 58, .

The safety lock body (51) is rotatably installed on the rear surface of the base (10). A locking hook 52 is extended upward from the third supporting shaft 57 in the direction of one side of the safety locking body 51 and a guide hook 55 ) Is extended.

A groove corresponding to the groove of the opening 12 of the base 10 is formed between the locking hook 52 and the guide protrusion 55. [ A guide curved surface 53 is formed on the upper side of the locking hook 52 and a straight engaging portion 54 is formed on the lower side of the guide curved surface 53. The guide protrusion 55 extends obliquely in the counterclockwise direction, thereby guiding the movement of the striker 80 moved between the lock hook 52 and the guide protrusion 55. [

The safety lock extension piece 56 extending from the safety lock body 51 and the base 10 are connected by the third elastic member 58 so that the safety lock body 51 provides an elastic force for rotating counterclockwise Receive.

The switch unit 60 is provided on the base 10 adjacent to the latch gear 20 and the switch unit 60 is operated by the rotation of the latch gear 20 to transmit the rotational position of the latch gear 20 to the control unit do. In the switch unit 60 according to the embodiment, a switch operated in a contact manner is used.

The cover portion 70 provided on the front surface of the base 10 with the foul 30 and the latch gear 20 interposed therebetween is formed in the shape of a plate, (75).

The hood latch device 1 for pedestrian protection is provided with a free space for moving the striker 80 below the second latching portion 23 in a state where the first latching portion 22 is caught by the latching protrusion 32 90, the striker 80 can be moved downward together with the hood due to an external impact, so that the injuries of the pedestrian can be reduced.

In this specification and claims, a foul 30 is provided on the left side of the base 10, a latch gear 20 is provided on the right side of the base 10, and the foul body 31 and the latch body 21 A latch gear 20 is provided on the left side of the base 10 and a foul 30 is provided on the right side of the base 10 so as to rotate counterclockwise The present invention is not limited thereto.

Hereinafter, the operating state of the hood latch device 1 for protecting a pedestrian according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

A state in which the striker 80 is locked in the hood latch device 1 for pedestrian protection due to the descent of the hood will be described with reference to the drawings.

The striker 80 connected to the lower side of the hood due to the descent of the hood starts to descend as shown in Fig.

The striker 80 contacts the guide curved surface 53 of the safety lock portion 50 and rotates the locking hook 52 clockwise and moves toward the opening 12 of the base 10 Descend.

The striker 80 inserted into the opening 12 of the base 10 is inserted into the mounting groove 24 of the latch gear 20 as shown in Fig. The first engaging portion 22 of the latch gear 20 is also hit by the striker 80 moving downward along the opening 12 to strike the engaging projection 32 of the foul 30. When the first engaging portion 22 strikes the guide curved surface 33 of the engaging projection 32 as shown in Fig. 8, the fulcrum body 31 rotates counterclockwise about the second supporting shaft 37 . The first engaging portion 22 pushes the guide curved surface 33 and is rotated downward.

The link portion 40 connected to the linking protrusion 35 is also rotated by the counterclockwise rotation of the foul body 31 so that the bent portion of the link portion 40 is located in the movement path of the second engaging portion 23.

9, when the latch gear 20 rotates in the counterclockwise direction in conjunction with the continuous downward movement of the striker 80, the second latching portion 23 hits the bent portion of the link portion 40 do. The second link 46 connected to the first link 42 is rotated to rotate the foul 30 in the clockwise direction while the second hooking portion 23 strikes the upper side of the first link 42 of the link portion 40, .

10, when the foul 30 struck the link portion 40 is rotated in the clockwise direction by the elastic force of the second elastic member 38 and the repulsive force hitting the link portion 40, The first latching portion 22 of the latch gear 20 is caught by the latching jaw 34 of the foul 30 so that the clockwise rotation is restrained. The first engaging portion 22 is caught by the engaging jaw 34 and the position where the upward movement of the striker 80 is restrained is set as the lock position.

When the pedestrian descends into the hood due to a pedestrian collision of the vehicle at the locked position, the striker 80 moves downward together with the hood as shown in Fig. As the striker 80 moves downward, the latch gear 20 is also moved downward while being rotated counterclockwise.

The second engaging portion 23 of the latch gear 20 strikes the link portion 40 while the striker 80 moves to the lock position and the link portion 40 is engaged with the second The link portion 40 does not interfere with the striker 80 and the second engaging portion 23 when the striker 80 moves to the clearance space 90 because the engaging portion 23 is out of the movement path of the engaging portion 23.

Therefore, when the pedestrian impacts on the hood, the hood can be moved downward by the length of the free space 90 together with the striker 80, so that the impact transmitted to the pedestrian can be reduced.

As described above, according to the present invention, between the striker 80 and the base 10 at the locked position where the striker 80 is restrained by the latch gear 20, a space for allowing the striker 80 to move downward When the pedestrian is impacted on the hood, the striker 80 is moved downward together with the hood, so that the injuries of the pedestrian can be reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. will be. Also, the hood latch device for protecting a pedestrian installed in a passenger car has been described as an example. However, the hood latch device for protection according to the present invention may be applied to other mechanical devices including a commercial vehicle, have. Accordingly, the true scope of the present invention should be determined by the following claims.

1: Hood latch device for pedestrian protection
10: base 12: opening 14: first connection hole
16: second connection hole 18: third connection hole 20: latch gear
21: latch body 22: first latching part 23: second latching part
24: mounting groove portion 25: latch extension piece 26: first support shaft
27: first elastic member 30: foul 31: foul body
32: locking projection 33: guide curved surface 34:
35: connecting projection 36: foul extension piece 37: second supporting shaft
38: second elastic member 40: link portion 42: first link
44: first connection pin 46: second link 47: second connection pin
50: safety lock portion 51: safety lock body 52: locking hook
53: guide curved surface 54: engaging portion 55: guide projection
56: safety lock extension piece 57: third support shaft
58: third elastic member 60: switch part 70: cover part
75: guide groove 80: striker 90: clearance space

Claims (12)

A base having an opening;
A latch gear having a mounting groove portion for restricting the striker that has entered through the opening portion;
A fulcrum rotatably installed on the base and restraining rotation of the latch gear by engaging with the latch gear; And
And a link portion rotatably installed on the base and the foul so as to rotate the foul while rotating in contact with the latch gear to restrain the upward movement of the latch gear. Device.
The method according to claim 1,
The latch gear includes: a latch body rotatably installed on the base;
A first latching portion protruding from the latch body and positioned on the striker located in the mounting groove portion and contacting the foul at a locked position; And
And a second latching part which is spaced apart from the first latching part and protruded from a side surface of the latch body to be positioned below the striker located in the mounting groove part and rotated together with the latch body to move the linking part Wherein the hood latching device comprises a hood latching device for pedestrian protection.
3. The method of claim 2,
The latch gear includes: a first support shaft installed to penetrate the latch body and the base; And
And a latch extension extending from the latch body and connected to the first elastic member.
The method of claim 3,
Wherein the first elastic member is connected to both the base and the latch extension to supply an elastic force to rotate the latch gear in the clockwise direction.
The method of claim 3,
Wherein the mounting groove portion is located between the first latching portion and the second latching portion, and the first latching portion is bent obliquely in a clockwise direction about the latch body.
3. The method of claim 2,
The foul includes: a foul body rotatably installed on the base;
A locking protrusion protruding from the foul body and contacting the first locking part moving from the upper side to the lower side and restricting movement of the first locking part moving from the lower side to the upper side; And
And a connecting protrusion protruded from the foul body and connected to the link portion.
The method according to claim 6,
Wherein the engaging projection forms a guide curved surface on an upper side which is pushed in contact with the first engaging portion and a lower engaging jaw which is engaged with the first engaging portion moving upward along the mounting groove, Hood latch device.
The method according to claim 6,
Further comprising a second elastic member connected to both the base and the foul body for supplying an elastic force to rotate the foul body in the clockwise direction.
The method according to claim 6,
The link portion includes: a first link rotatably connected to the base; And
And a second link rotatably connected to both the first link and the coupling protrusion.
10. The method of claim 9,
Wherein the first link and the second link are connected in an "a" shape.
11. The method according to claim 9 or 10,
Wherein the first link is rotated while being pushed by the second engaging portion moving downward along the mounting groove portion to move the second link connected to the foul.
The method according to claim 6,
Wherein a space for allowing the striker to move is provided below the second latching portion when the first latching portion is caught by the latching protrusion.

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