KR101593312B1 - Noise reduction type latch device for automobile - Google Patents

Noise reduction type latch device for automobile Download PDF

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Publication number
KR101593312B1
KR101593312B1 KR1020140082091A KR20140082091A KR101593312B1 KR 101593312 B1 KR101593312 B1 KR 101593312B1 KR 1020140082091 A KR1020140082091 A KR 1020140082091A KR 20140082091 A KR20140082091 A KR 20140082091A KR 101593312 B1 KR101593312 B1 KR 101593312B1
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KR
South Korea
Prior art keywords
latch
foul
gear
latch gear
cover
Prior art date
Application number
KR1020140082091A
Other languages
Korean (ko)
Other versions
KR20160003999A (en
Inventor
변성근
오종철
조현덕
Original Assignee
평화정공 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 평화정공 주식회사 filed Critical 평화정공 주식회사
Priority to KR1020140082091A priority Critical patent/KR101593312B1/en
Publication of KR20160003999A publication Critical patent/KR20160003999A/en
Application granted granted Critical
Publication of KR101593312B1 publication Critical patent/KR101593312B1/en

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means
    • E05B77/40—Lock elements covered by silencing layers, e.g. coatings

Abstract

Disclosed is a noise reduction type automotive latch device. A latch device for a vehicle of a noise reduction type of the present invention includes: a base having a moving groove portion for guiding movement of a striker, the base being fixed to a door; a striker which is rotatably installed on the base, A latch gear rotatably installed on the base and configured to surround the foul and latch gear and the foul restricting the rotation of the latch gear by an operation engaged with the latch gear, and is formed when the latch gear is in contact with the foul And a cushion cover portion for reducing the noise generated by the cushion cover.

Description

TECHNICAL FIELD [0001] The present invention relates to a noise reducing automotive latch device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a noise reduction type vehicle latch device, and more particularly, to a noise reduction type vehicle latch device for reducing noise generated when a latch gear and a foul contact each other.

Generally, a latch device for locking a door of a vehicle can be formed in various ways. A striker is fixed to the vehicle body, and a latch device including a foul and a latch gear is installed on the door. The latch device installed on the door is rotated together with the door to engage the striker to restrain the rotation of the door.

The door latch device is operated according to the operation of the inside handle, the outside handle and the inside knob, and a remote controller for operating the latch device may be additionally provided.

Conventionally, the foul and the latch gear are made of a metal material, and metallic noise is generated when the foul and the latch gear come into contact with the rotation of the latch gear.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2012-00413444 (published on May.05, 2012, entitled: Door latch assembly).

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 noise reducing automotive latch device for reducing noise generated when a latch gear and a foul contact each other.

A latch device for a vehicle of a noise reduction type according to the present invention includes: a base having a moving groove portion for guiding the movement of a striker, the base being fixed to a door; a striker which is rotatably installed on the base, A latch gear having a latching portion, a fulcrum rotatably installed on the base and restraining rotation of the latch gear by an operation engaged with the latch gear, and a latch gear, and a structure that surrounds the outside of the foul. When the latch gear is in contact with the foul And a cushion cover portion for reducing the generated noise.

The latch gear includes a latch body rotatably mounted on the base and having a mounting groove portion into which the striker is inserted, a first engaging portion protruding from the latch body and rotated by the striker inserted into the mounting groove to be engaged with the foul, And a second latching part spaced apart from the latching part so as to protrude from the side surface of the latching body and hooked on the fouls.

Preferably, the latch gear further includes a mounting groove portion provided on the outside of the latch body so as to insert the buffer cover portion.

Preferably, the cushioning cover portion includes a latch cover portion that is installed in a shape to surround the outside of the latch gear, and a foul cover portion that is installed in a shape to surround the outside of the foul.

The latch cover includes a latch cover body formed by injection molding in the shape of wrapping the outside of the latch gear, a first buffer part protruding from a latch cover body contacting with one side inclined surface of the first latch part to form a first buffer space, And a second buffer part protruding from the latch cover body in contact with the other inclined surface of the part to form a second buffer space.

The latch cover may further include a third buffer that extends from the latch body and is inserted into the mounting recess to absorb the vibration of the latch body.

The noise reduction type automotive latch apparatus according to the present invention can reduce the noise generated when the latch gear and the foul come in contact with each other because the shock absorbing cover portion is provided to surround the outside of the latch gear and the foul.

Further, since a plurality of buffer spaces are provided along the periphery of the latch cover portion, the buffer space is deformed when the latch gear and the foul come into contact with each other, so that the durability of the components can be improved by absorbing the impact.

1 is a front view showing a main part of a noise reduction type vehicle latch device according to an embodiment of the present invention.
2 is a front view schematically showing a state in which a striker is restrained in a latch device for a noise reduction type vehicle according to an embodiment of the present invention.
3 is a partial cross-sectional view of a main portion of a noise reduction type vehicle latch apparatus according to an embodiment of the present invention.
4 is a cross-sectional view of a state in which a striker is restrained in a latch device for a noise reduction type vehicle according to an embodiment of the present invention.
5 is a partially cutaway perspective view of a latch cover according to an embodiment of the present invention.
6 is a perspective view illustrating an exploded view of a latch cover and a latch gear according to an embodiment of the present invention.
FIG. 7 is a perspective view explaining a foul cover portion and a foul according to an embodiment of the present invention. FIG.
8 is a partially cutaway perspective view of a foul cover according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a noise reduction type vehicle latch apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. For convenience of explanation, a noise reduction type vehicle latch device installed on a door of a passenger car will be described 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 front view showing a main part of a latch device for a noise reduction type automobile according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a latch device for a vehicle of a noise reduction type according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of a substantial part of a noise reduction type vehicle latch apparatus according to an embodiment of the present invention, and FIG. 4 is a cross- FIG. 5 is a partially cut-away perspective view of a latch cover according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view of a latch according to an embodiment of the present invention. FIG. 7 is a perspective view explaining a foul cover portion and a foul according to an embodiment of the present invention, and FIG. 8 is a perspective view of a foul kick according to an embodiment of the present invention. It is a partially cut perspective view of the burr.

1 to 8, the noise-reducing type automotive latch device 1 according to the embodiment of the present invention includes a moving groove 12 for guiding the movement of the striker 70, A latch gear 20 which is rotatably installed on the base 10 and which has a plurality of engaging portions for restricting the striker 70 that has entered through the moving groove 12; And a fulcrum 30 and a latch gear 20 for restricting rotation of the latch gear 20 by an operation of engaging with the latch gear 20 so as to surround the outside of the foul 30, And a cushion cover portion (40) for reducing the noise generated when the latch gear (20) is in contact with the foul (30).

The base 10 may be formed in various shapes within the shape of a frame that is fixed to the door by forming the moving groove 12 for moving the striker 70 to the right and left (hereinafter, referred to as reference 1). The base 10 according to one embodiment is formed in a plate shape, and a moving groove 12 for moving the striker 70 is formed in the left-right direction. One side (reference right side in Fig. 1) of the moving groove 12 is open and the other side (left side in Fig. 1) is closed. A latch gear 20 is rotatably mounted on the upper side of the base 10 and a foul 30 is provided on the lower side of the base 10.

The latch gear 20 may be formed in various shapes within a technical concept including a plurality of latching portions which are rotatably installed on the base 10 and restricting the striker 70 that has entered through the moving groove 12. [ The latch gear 20 according to one embodiment includes a first latching portion 22, a mounting groove portion 25, a second latching portion 26, a latching latching portion 28, and a mounting latching portion 29.

The latch body 21 is rotatably installed on the base 10 and is provided with a mounting groove portion 25 into which the striker 70 is inserted so as to open toward one side (right side in FIG. 1).

The first latching part 22 may be formed in various shapes within the technical idea of being protruded from the latch body 21 and being rotated by the striker 70 inserted into the mounting groove 25 and caught by the foul 30. The latching portion 28 and the mounting groove portion 25 in the clockwise direction of the latch body 21 and the first latching portion 22 and the second latching portion 26 with reference to the center of rotation of the latch body 21. [ And the mounting groove 29 are sequentially positioned.

The first latching portion 22 extends along the direction of the rotation center of the latch body 21 together with the restricting latching portion 28 with the mounting groove portion 25 interposed therebetween. When the first latching portion 22 extends downward (refer to FIG. 4) toward the foul 30, the one slanting surface 23 is located on the right side of the first latching portion 22 and the one slanting surface 23 And the other side inclined surface 24 is provided on the left side of the first latching portion 22 facing the first latching portion 22.

The second latching part 26 may protrude from the side of the latch body 21 away from the first latching part 22 and may be formed in a variety of shapes within the technical idea of being caught by the foul 30. The second engaging portion 26 is spaced apart from the first engaging portion 22 and protrudes to the side surface of the latch body 21. The second engaging portion 26 is engaged with the fulcrum 30 when the striker 70 is incompletely constrained to the latch gear 20, Lt; / RTI > The second engaging portion 26 is formed to protrude from the latch body 21 and an outer inclined surface 27 is formed on a side facing the mounting groove 29.

The mounting groove portion 25 is located between the first engaging portion 22 and the restricting engaging portion 28 and is inserted into the movable groove portion 12 of the base 10 for insertion of the striker 70 Thereby forming a groove portion.

The mounting groove 29 may be formed in various shapes within a shape of a groove forming the outer side of the latch body 21 so that the buffer cover 40 is inserted. When the first latching portion 22 and the restricting latching portion 28 are disposed in the downward direction toward the foul 30, the mounting groove 29 according to the embodiment is provided with a recessed groove . The mounting groove portion 29 is filled with the latch cover portion 50 to reduce vibration of the latch gear 20 made of a metal material.

The restricting engagement portion 28 is provided so as to be symmetrical to the first retaining portion 22 with the mounting groove portion 25 interposed therebetween and has a structure for restricting the departure of the striker 70 inserted into the movement groove portion 12 Can be formed in various shapes within the idea.

The pawl 30 is rotatably mounted on the base 10 and is engaged with the latch gear 20 by projecting the latching protrusion 34 toward the latch gear 20 to restrict the rotation of the latch gear 20 do. Further, the foul 30 may be formed in various shapes within the technical idea of releasing the lock of the latch gear 20 while rotating in conjunction with the operation of the operation cable (not shown). The foul 30 and the latch gear 20 may be formed of a metal material, and other types of material including synthetic resin may be used as needed. The foul 30 according to one embodiment includes a foul body 32, a locking protrusion 34, and an extending projection 36. [

The foul body 32 may be deformed into various shapes within the technical idea provided on the side opposed to the latch gear 20 with the moving groove 12 interposed therebetween. The foul body 32 according to one embodiment is rotatably installed on the lower side of the base 10.

The latching protrusion 34 may be formed in various shapes within a technical concept of protruding from the foul body 32 and restricting the rotation of the latch gear 20. The latching protrusion 34 is protruded in the direction toward the latch gear 20 and is pushed in contact with the latch gear 20 rotating together with the striker 70 or the first latching portion 22 or the second latching portion 26 so as to restrain the rotation of the latch gear 20. The extension projection 36 is provided in a shape extending from the engagement projection 34.

The shock absorbing cover portion 40 is provided in a shape that wraps around the outside of the fulcrum 30 and the latch gear 20 and is configured to reduce noise generated when the latch gear 20 contacts the fulcrum 30 Or the like.

 The cushion cover portion 40 may be provided only on either the latch gear 20 or the foul 30 and may be provided on both the latch gear 20 and the foul 30. The shock absorbing cover 40 may be formed to surround both the outer periphery of the latch gear 20 and the foul 30, or may be formed in a shape that partially opens and covers the rest. The material of the cushion cover portion 40 may be plastic, rubber, synthetic resin, or the like. Also, the method for producing the cushion cover portion 40, such as being able to be coupled to the foul 30 and the latch gear 20 by means of assembly or injection, can be variously modified. The cushion cover portion 40 according to one embodiment includes a latch cover portion 50 installed to surround the outside of the latch gear 20 and a foul cover portion 60).

The latch cover portion 50 according to the embodiment is provided with the latch cover body 51, the first buffer portion 52, the second buffer portion 54, the third buffer portion 56, And includes a buffer portion 57.

The latch cover body (51) is injection molded in a shape to surround the outside of the latch gear (20). A portion of the latch gear 20 which is not in contact with the foul 30 is exposed to the outside and the portion of the latch gear 20 which is in contact with the foul 30 is wrapped around the latch cover body 51. Since the latch cover body 51 is provided in a shape to enclose the latch gear 20, the phenomenon of the latch gear 20 being vibrated by the vibration transmitted to the latch gear 20 during operation of the latch gear 20 can be reduced or prevented do.

The first cushioning portion 52 is formed in various shapes within the technical idea of protruding from the latch cover body 51 contacting the one inclined surface 23 of the first latching portion 22 to form the first buffer space 53 . The first buffer part 52 according to an embodiment is installed in a state in which the first buffer space 53 is formed on the inner side and is in contact with one side inclined surface 23 of the first latching part 22. [ The first buffering portion 52 buffers an impact generated when the latch gear 20 is engaged with the latching protrusion 34 of the foul 30 to reduce the vibration of the latch gear 20. The shape of the first buffer 52 protruding outward from the latch cover body 51 can be variously modified.

The second cushioning part 54 is formed in various shapes within the technical idea of protruding from the latch cover body 51 in contact with the other inclined surface 24 of the first latching part 22 to form the second buffer space 55 . The second buffer part 54 according to one embodiment is installed in a state of being in contact with the other side slope 24 of the first latch part 22, forming a second buffer space 55 inside. When the striker 70 moves to the inside of the moving groove 12 along the moving groove 12, the first engaging portion 22 of the latch gear 20, which rotates together with the striker 70, The second buffer part 54 abuts on the latching protrusion 34 while rotating in the direction in contact with the latching protrusion 34 so as to reduce the impact transmitted to the latch gear 20.

The third buffering part 56 may be formed in various shapes within the technical idea of extending from the latch body 21 and being inserted into the mounting groove part 29 to absorb the vibration of the latch body 21. [ The third cushioning portion 56 according to one embodiment is formed by injection molding like the latch cover body 51 and increases the area contacted with the latch gear 20 by being inserted into the mounting groove portion 29, Can be effectively reduced.

The fourth cushioning portion 57 may be formed in various shapes within the technical idea of protruding from the latch cover body 51 contacting the outer side of the restricting engagement portion 28 to form the fourth cushion space 58. The fourth cushioning portion 57 according to the embodiment is installed in a state in which the fourth cushioning portion 57 is formed on the inner side and is in contact with the outer side of the restricting engagement portion 28. The fourth buffering portion 57 reduces the impact generated when the restricting engagement portion 28 contacts another member.

The foul cover portion 60 is installed to surround the outside of the foul 30 and attenuates the vibration of the foul 30 to reduce the noise generated by the vibration. The foul cover portion 60 according to one embodiment includes a foul cover body 62 and a side buffer portion 64.

The foul cover body (62) is injection molded in a shape to cover the outside of the foul (30). The foul cover body 62 is formed such that a part of the foul 30 that is not in contact with the latch gear 20 is exposed to the outside and the portion in contact with the latch gear 20 is wrapped. Since the foul cover body 62 is installed to surround the foul 30, the vibration of the foul 30 is reduced or prevented by the vibration transmitted to the foul 30 when the latch gear 20 is operated.

The side cushioning part 64 is injection-molded integrally with the foul cover body 62 and is provided in a shape to enclose the extension projection 36 of the foul 30. Since the buffer space is also provided inside the side buffer portion 64, when the latch cover portion 50 which rotates together with the latch gear 20 is brought into contact with the side buffer portion 64, it absorbs the impact.

In the meantime, in the embodiment of the present invention, a plurality of buffer units are provided in the latch cover unit 50, but this is merely an example, and even if one buffer unit is provided, the object of the present invention can be sufficiently achieved Of course it is.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the accompanying drawings, an operation state of a noise reduction type vehicle latch device 1 according to an embodiment of the present invention will be described in detail.

1 and 3, in a state before the striker 70 enters the moving groove 12, the entrance of the mounting groove 25 and the entrance of the moving groove 12 are aligned in the same direction Direction).

3 and 4, when the door is rotated and the base 10 is moved toward the fixed striker 70, the striker 70 moves along the moving groove 12 to the inside of the mounting groove 25 .

When the base 10 is moved to the position where the striker 70 is installed by the continuous rotation of the door for the vehicle, the latch gear 20 is pushed by the striker 70 and rotated in the clockwise direction (refer to FIG. 4). The shock transmitted to the latch gear 20 while the third buffer part 56, the second buffer part 54 and the first buffer part 52 are in contact with the foul 30 in turn as the latch gear 20 rotates .

On the other hand, since the first buffering space 53 is provided inside the first buffering part 52, the first buffering part 52 is easily deformed, thereby facilitating buffering. In addition, since the second buffer space 55 is also provided inside the second buffer part 54, the second buffer part 54 is easily deformed, thereby facilitating the buffering action.

As described above, according to the present invention, since the cushion cover portion 40 is provided to surround the outside of the latch gear 20 and the foul 30, the cushion cover portion 40 is formed when the latch gear 20 and the foul 30 are in contact with each other Noise can be reduced. Further, since a plurality of buffer spaces are provided along the periphery of the latch cover portion 50, the buffer space is deformed when the latch gear 20 and the foul 30 are in contact with each other, so that the durability of the components can be improved by absorbing the impact.

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. Further, the noise reduction type vehicle latch device installed in the passenger car is taken as an example, but this is merely an example, and the noise reduction type vehicle latch device according to the present invention can be applied to other mechanical devices including a commercial vehicle. Accordingly, the true scope of the present invention should be determined by the following claims.

1: Noise reduction type automotive latch device
10: base 12: moving groove
The present invention relates to a ratchet gear having a latching member and a latching member for connecting the latching member and the latching member. The latching member includes a first latching portion, a second latching portion, a second latching portion, a second latching portion, a second latching portion,
30: fouls 32: foul body 34: engaging projection 36:
40: buffer cover part
The present invention relates to a latch cover having a latch cover and a latch cover having the same structure as the latch cover of the first embodiment. Buffer space
60: foul cover part 62: foul cover body 64: side buffer part
70: Striker

Claims (6)

A base fixed to the door and having a moving groove portion for guiding movement of the striker;
A latch gear rotatably installed on the base, restricting the striker that has entered through the moving groove, and having a plurality of latching portions;
A fulcrum rotatably installed on the base and restraining rotation of the latch gear by engaging with the latch gear; And
And a cushion cover portion installed to surround the latch gear and the outside of the foul so as to reduce noise generated when the latch gear contacts the foul,
The latch gear includes a latch body rotatably mounted on the base and having a mounting groove portion into which the striker is inserted;
A first latching part protruded from the latch body and rotated by the striker inserted into the mounting groove part to be caught by the foul; And
And a second latching portion protruding from a side surface of the latch body and spaced apart from the first latching portion and engaged with the foul,
The latch gear further includes a mounting groove portion provided on the outside of the latch body so as to insert the buffer cover portion,
The cushion cover part may include a latch cover part installed to surround the outside of the latch gear; And
And a foul cover portion installed to surround the outside of the foul,
Wherein the latch cover portion includes: a latch cover body formed by injection molding in a shape to surround the outside of the latch gear;
A first buffer portion protruding from the latch cover body contacting the one inclined surface of the first latch portion to form a first buffer space; And
And a second buffer portion protruding from the latch cover body in contact with the other inclined surface of the first latch portion to form a second buffer space,
Wherein the latch cover portion further includes a third buffer portion extending from the latch body and inserted in the mounting groove portion to absorb vibration of the latch body. delete delete delete delete delete
KR1020140082091A 2014-07-01 2014-07-01 Noise reduction type latch device for automobile KR101593312B1 (en)

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Application Number Priority Date Filing Date Title
KR1020140082091A KR101593312B1 (en) 2014-07-01 2014-07-01 Noise reduction type latch device for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140082091A KR101593312B1 (en) 2014-07-01 2014-07-01 Noise reduction type latch device for automobile

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KR20160003999A KR20160003999A (en) 2016-01-12
KR101593312B1 true KR101593312B1 (en) 2016-02-12

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106193848A (en) * 2016-08-30 2016-12-07 重庆长安汽车股份有限公司 A kind of latch for vehicle door assembly
CN110344677B (en) * 2019-06-14 2021-02-26 浙江吉利控股集团有限公司 Take buffer's automobile door lock and vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3933898B2 (en) * 2001-09-21 2007-06-20 三井金属鉱業株式会社 Vehicle door lock device

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