KR20140037506A - Lift device of active hood - Google Patents

Lift device of active hood Download PDF

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Publication number
KR20140037506A
KR20140037506A KR1020120103731A KR20120103731A KR20140037506A KR 20140037506 A KR20140037506 A KR 20140037506A KR 1020120103731 A KR1020120103731 A KR 1020120103731A KR 20120103731 A KR20120103731 A KR 20120103731A KR 20140037506 A KR20140037506 A KR 20140037506A
Authority
KR
South Korea
Prior art keywords
latch
hood
striker
interlocking member
unit
Prior art date
Application number
KR1020120103731A
Other languages
Korean (ko)
Inventor
정병대
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 KR1020120103731A priority Critical patent/KR20140037506A/en
Publication of KR20140037506A publication Critical patent/KR20140037506A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R21/38Protecting non-occupants of a vehicle, e.g. pedestrians using means for lifting bonnets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D25/00Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08Front or rear portions
    • B62D25/10Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B62D25/12Parts or details thereof
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/04Strikers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R2021/343Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Superstructure Of Vehicle (AREA)

Abstract

Disclosed is a lift device for an active hood. The lift device of the disclosed active hood comprises: a striker provided in the hood, a housing mounted in the engine room, a latch provided inside the housing, and locking or unlocking the striker, and operating the latch by an external signal. And a floating member for floating the hood when the latch operation unit and the latch unit and the striker release the binding.

Description

LIFT DEVICE OF ACTIVE HOOD}

The present invention relates to a lift device of an active hood, and more particularly, the latch and the striker can be released by the explosion method of a small explosive trigger to reduce the secondary impact of pedestrians in response to an instant collision. The present invention relates to an active hood lift apparatus capable of miniaturizing a product.

Generally, a passenger vehicle in a vehicle is provided with an engine room in front, and an engine room is shielded by a hood.

The engine room is laid out so that the parts such as the engine are arranged compactly, so there is no space for absorbing the shock, and the hood is designed to have a very strong structure for robustly shielding the engine room.

As a result, when a pedestrian crashes, the pedestrian first collides with the front bumper of the car, falls down toward the hood of the car, collides again, and the head of the pedestrian collides with the hood. Pedestrians are fatally wounded.

Therefore, recently, as the pedestrian protection law is strengthened, the hood is moved upward so that a space for absorbing the pedestrian's impact energy can be secured between the hood and the engine room during a pedestrian collision in order to satisfy the pedestrian protection law. Active hood systems are being applied.

Meanwhile, Korean Patent No. 10-077518 (Registration Date: November 11, 2007) discloses a "hood structure for enhancing the performance of an active hood system of a vehicle."

According to the present invention, the latch and the striker can be released by the explosion type of the explosive trigger, so that the impact of the pedestrian can be reduced in response to an instant collision, and the maintenance is easy due to the modularization of parts, and the product can be miniaturized. It is an object of the present invention to provide a lift device of an active hood.

An apparatus for lifting an active hood according to the present invention includes: a striker provided in the hood, a housing mounted in the engine room, a latch provided in the housing, and locking or unlocking the striker, And a latch operating part for operating the latch part and a floating member floating the hood when the latch part and the striker are unbound.

In addition, the latch unit is provided in the housing, the base plate is formed with a receiving groove so that the striker is inserted, rotatably provided in the base plate, elastically supported in one direction, and the striker inserted into the receiving groove; And an interlocking portion interlocked with the latch and the latch operating portion to release the locking of the latch.

In addition, the latch operation is characterized in that the explosion-type trigger.

In addition, the interlocking portion is rotatably coupled to the base plate, is elastically supported in one direction, is rotatably coupled to the base plate, and is rotatably coupled to the base plate, and is in contact with the first interlocking member. And a link bar allowing the second interlocking member and the first interlocking member to be successively rotated by the second interlocking member for locking the first interlocking member and the latch operation unit.

The lift apparatus of the active hood according to the present invention has the effect of being able to release the latch and the striker by the explosion method of the explosion trigger so that the shock can be quickly alleviated in response to an instant collision.

In addition, the present invention has the effect that each part is modularized in the base plate provided inside the housing, easy to replace and maintain.

In addition, the present invention has the effect that the size of the product can be reduced since the release operation of the latch portion is possible by a small explosion-type trigger.

1 is a perspective view of a lift apparatus of an active hood according to an embodiment of the present invention;
2 is an exploded perspective view of a lift apparatus of an active hood according to an embodiment of the present invention;
3 is a view showing a locked state of the lift device of the active hood according to an embodiment of the present invention,
4 is a view showing the operation for unlocking the lift device of the active hood according to an embodiment of the present invention,
Figure 5 is a flow chart showing a control method of the active hood lift apparatus according to an embodiment of the present invention,
Figure 6 is a plan view showing a vehicle equipped with an active hood lift apparatus according to an embodiment of the present invention,
7 is a view showing the operation of the lift apparatus according to the pedestrian dropping point according to an embodiment of the present invention.

Hereinafter, an embodiment of a lift apparatus of an active hood according to the present invention will be described with reference to the accompanying drawings. 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. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view of a lift apparatus of an active hood according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a lift apparatus of an active hood according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a view illustrating a locking state of a lift device of an active hood according to an embodiment of the present invention, and FIG. 4 is a view illustrating an operation of unlocking a lift device of an active hood according to an embodiment of the present invention. In addition, Figure 5 is a flow chart showing a control method of the active hood lift apparatus according to an embodiment of the present invention, Figure 6 is a plan view showing a vehicle equipped with an active hood lift apparatus according to an embodiment of the present invention, Figure 7 Is a view showing the operation of the lift apparatus according to the pedestrian dropping point according to an embodiment of the present invention.

1 to 4, the lift apparatus 100 of the active hood according to an embodiment of the present invention is a device for lifting the rear of the hood to minimize the impact of the pedestrian during a pedestrian collision, the striker 110, the housing 130, the latch unit 140, the latch operation unit 180 and the floating member 190.

The striker 110 is provided with a locking ring 115 at the center of the top panel 112 and the bottom of the upper panel 112 is provided on the hood bottom.

The hinge part 120 is provided on the striker 110. Hinge portion 120 is a hinge pin 122 is fixed to the rear surface of the hood, a support piece 124 which is located below the hinge pin 122 and the striker 110 is mounted on the bottom, and the hinge pin 122 and the support piece The first and second links 126 and 128 are hinged to both ends of the 124 and rotatably fix the hinge pins 122 around the support piece 124.

The housing 130 is mounted in the engine room. The upper surface of the housing 130 is opened, a space portion is formed therein, and a mounting flange 132 for fixing to the engine room is provided around the upper end.

The latch unit 140 is provided inside the housing 130, and locks or unlocks the striker 110, and includes a base plate 150 formed with a receiving groove 155 to insert the striker 110. The latch is provided by the operation of the latch 160 and the latch operation unit 180 rotatably provided in the base plate 150, elastically supported in one direction, and coupled with the striker 110 inserted into the receiving groove 155. And an interlocking portion 170 for releasing the locking of the 160.

The base plate 150 is bolted to the inner surface of the housing 130, and the locking ring 115 of the striker 110 is inserted into the accommodating groove 155 to be coupled to the latch 160. The locking ring 115 protrudes in a 'c' shape on the bottom of the striker 110, is inserted into the receiving groove 155, and is bound by the latch 160.

The latch operation unit 180 operates the latch unit 140 by an external signal, and consists of an explosive trigger to operate the latch unit 140 by an explosion method. That is, when the electronic control device (not shown) that determines the signal of the sensor detected by the collision of the pedestrians in front of the vehicle sends an operation signal, it explodes by the spark and operates the latch unit 140.

At this time, the through hole 134 is formed in the housing 130 to be electrically connected to the latch operation unit 180.

The linkage unit 170 is rotatably coupled to the base plate 150 as shown in FIG. 3, is elastically supported in one direction, and locks the latch 160 with the first interlocking member 172 and the base plate ( 150 is rotatably coupled to the second interlocking member by an operation of the second interlocking member 175 and the latch operating unit 180 which are in contact with the first interlocking member 172 to lock the first interlocking member 172. Link member 175 and the first linking member 172 includes a link bar 179 to be rotated in succession.

In more detail, the first interlocking member 172 is hinged to the free rotation of the base plate 150, the contact bar 173 is formed on one side, and rotatably coupled to the link bar 179. The second interlocking member 175 is provided on the first interlocking member 172, rotatably provided on the base plate 150, and is elastically supported in a counterclockwise direction by a torsion spring. The second interlocking member 175 has a locking bar 176 extending downward and is supported downward by the contact bar 173 to constrain rotation, and the latch bar 176 contacts the latch 160 to latch. A locking step 177 is formed to restrain the rotation of the 160. In addition, the locking bar 176 is provided with a limiting jaw 178 that limits the rotation range of the latch 160 when the latch 160 is rotated by the release of the locking jaw 177. The latch 160 is elastically supported in the counterclockwise direction by the torsion spring.

 The floating member 190 floats a hood when the latch unit 140 and the striker 110 are released from each other. The floating member 190 supports the bottom surface of the housing 130 and the upper end elastically supports the bottom surface of the striker 110. It consists of a plurality of coil springs.

That is, as shown in FIG. 4, when the shaft 182 is raised by the explosion of the latch operating unit 180 configured as the explosion type trigger, the second interlocking member 175 connected by the link bar 179. Is rotated, and when the restraint of the first interlocking member 172 is released by the rotation of the second interlocking member 175 and the first interlocking member 172 is also rotated, the restraint of the latch 160 is released.

As described above, the hood is lifted by the restoring force compressed by the floating member 190 by the restraint of the latch 160.

Meanwhile, as illustrated in FIG. 2, the latch operation unit 180 is detachable from the base plate 150 by the detachable unit 185. The detachable part 185 includes a boss 187 provided in the base plate 150 so as to correspond to the mounting rib 186 and the mounting rib 186 having a coupling hole formed in the circumferential surface of the latch operating part 180. Include.

Hereinafter, the operation and effects of the lift apparatus of the active hood according to an embodiment of the present invention having the above-described structure will be described.

When the vehicle and the pedestrian collide with each other when driving the vehicle, the electronic controller detects this and quickly applies power to the latch operation unit 180, and the latch operation unit 180 to which power is applied is striker through the latch unit 140. By releasing the locking of the 110, the hood is lifted by using the compressed elastic force of the floating member 190, and thus a shock absorbing space is formed between the hood and the engine room while the pedestrian collides with the hood. Buffer to protect pedestrians.

Looking at the unlocking of the latch unit 140 by the latch operating unit 180, first, as shown in FIG. 3, the contact bar 173 of the first first interlocking member 172 is the second interlocking member 175. Contact the locking bar 176 of the second interlocking member 175 to restrain the rotation, and the locking jaw 177 of the locking bar 176 of the second interlocking member 175 contacts the latch 160 to latch. Since the rotation of the 160 is restrained, the locking ring 115 accommodated in the accommodation groove 155 is restrained by the latch 160.

Subsequently, when the collision with the pedestrian occurs, the latch operation unit 180 made of an explosive trigger is exploded by the power supplied from the electronic controller, and the shaft 182 is raised by the explosive force and the first of the shaft 182 is opened. The first interlocking member 172 is rotated clockwise by the link bar 179 connecting the interlocking member 172 to release the restraint of the second interlocking member 175 and the contact bar 173. Since the latch 160 is released from the locking step 177 by the rotation of the second interlocking member 175, the receiving groove 155 is opened by the rotation of the latch 160, thereby compressing the floating member 190. Locking ring 115 is released from the receiving groove 155 by the force of the repulsive force is to lift the hood at the same time.

At this time, the upper limit of the locking bar 176 is formed with a limiting jaw 178 for limiting the rotation radius of the latch 160 to prevent excessive rotation of the latch 160.

In this way, the latch operation unit 180 made of an explosive trigger can be released quickly by the power supply of the electronic control device, so that the instantaneous response to a collision accident can be promptly performed.

In addition, since the components of the base plate 150, that is, the latch unit 140 and the latch operating unit 180 are modularized, the assemblage with the housing 130 is improved, so that replacement and maintenance are easy.

4 to 7D, the control method of the active hood lift apparatus according to an embodiment of the present invention is to lift the rear of the hood to minimize the impact of the pedestrian during a pedestrian collision, as shown in FIG. 5. Detecting step (S10), falling point detection step (S20) and hood floating step (S30).

First, as illustrated in FIG. 6, the collision detection sensor 10 is partitioned and provided at the bumper side of the vehicle. The collision detection sensor 10 is provided at the center of the first collision detection sensor 11 provided at the left side of the vehicle bumper, the second collision detection sensor 12 provided at the right side of the vehicle bumper and the vehicle bumper. The third collision detection sensor 13 is provided.

In the collision detection step S10, the collision sites between the pedestrian and the vehicle are detected by the first, second, and third collision detection sensors 11, 12, and 13. Then, the falling point detection step (S20) detects the falling point of the pedestrian by the collision of the vehicle and the pedestrian.

When a pedestrian crashes, the pedestrian first collides with the front bumper of the vehicle, and then the second pedestrian collides again as the pedestrian falls down toward the hood, so that the head of the pedestrian collides with the hood. The falling point of the pedestrian can be detected according to the moving direction.

Then, the lift device 100 of the falling point detected by the falling point detecting step S20 is operated to perform the hood floating step S30 that injuries the hood.

The lift apparatus 100 includes first and second lift apparatuses 101 and 102 provided on both sides of a hood of the vehicle, respectively. The lift apparatus 100 includes a striker 110, a housing 130, a latch unit 140, a latch operation unit 180, and a floating member 190, as shown in FIGS. 1 to 4. The detailed description of the device 100 replaces that described above.

The hood floating step (S30) is the operation step (S32) for operating the latch operation unit 180 by an external signal, the locking of the striker 110 and the latch 160 by the operation of the latch operation unit 180 is released. The unlocking step (S34) and the striker 110 to be injured by the floating member 190 includes a floating step (S36).

That is, as shown in FIG. 4, when the shaft 182 is raised by the explosion of the latch operating unit 180 configured as the explosive trigger (S32), the second interlocking member connected by the link bar 179. When the 175 is rotated and the restraint of the first interlocking member 172 is released by the rotation of the second interlocking member 175 and the first interlocking member 172 is also rotated, the restraint of the latch 160 is released. (S34).

As described above, the hood is lifted together with the hood by the restoring force compressed by the floating member 190 by the restraint of the latch 160 (S36).

That is, as shown in FIG. 7, the falling position of the pedestrian is determined as the collision part of the vehicle and the traveling direction of the vehicle. As shown in FIG. 7A, the traveling direction of the vehicle is straight and the first pedestrian detection sensor 11 ), The first lift device 101 is activated to lift the hood of the corresponding position to reduce the impact. In addition, when the traveling direction of the vehicle is a right turn as shown in FIG. 1 Lifting device 101 is operated to lift the hood to reduce the impact, when the traveling direction of the vehicle left turn, as shown in Figure 7c, the third collision detection sensor 13 or the first collision detection sensor 11 When the collision occurs, the fall point is changed by the traveling direction of the vehicle as in the right turn, so that the second lift apparatus 102 can be operated to lift the hood to reduce the impact.

In addition, as shown in FIG. 7D, when the traveling direction of the vehicle is straight and collided with the third collision detection sensor 13, the first and second lift devices 101 and 102 are operated at the same time to lift the entire rear of the hood, thereby providing an impact. Can be reduced.

On the other hand, compared to the corresponding lift device 100 corresponding to the dropping point of the pedestrian lift device 100 may be sequentially operated in succession. 7A to 7D, the release lifter portion is shown by a solid line, and the non-lifting lifter portion is shown by a dotted line.

In view of this, when the pedestrian falls to the first lift device 101 due to the collision, the second lift device 102 is operated following the operation of the first lift device 101, and the hood is divided twice. By raising, the impact canceling effect can be improved.

According to the control method of the active hood lift apparatus according to the embodiment of the present invention, by detecting the collision with the pedestrian to operate the latch by the explosion method of the small explosion-type trigger, it is possible to quickly respond, as well as pedestrians The hood is injured so as to correspond to the falling point of the, and the impact is minimized because it is injured over two times.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the claims.

100: lift device of the active hood 110: striker
112: upper panel 115: locking ring
120: hinge portion 122: hinge pin
124: support piece 126: first link
128: second link 130: housing
132: mounting flange 134: through hole
140: latch portion 150: base plate
155: receiving groove 160: latch
170: linkage 172: first interlocking member
173: contact bar 175: second interlocking member
176: jam bar 177: jam jaw
178: jaw limited 179: link bar
180: latch operation portion 185: removable portion
186: mounting rib 187: boss
190: floating member

Claims (4)

A striker provided in the hood;
A housing mounted to the engine compartment;
A latch unit provided inside the housing and configured to lock or unlock the striker;
A latch operating unit which operates the latch unit by an external signal; And
And a flotation member which floats the hood when the latch unit and the striker are unbonded.
The method of claim 1,
The latch plate is provided in the housing, the base plate is formed with a receiving groove for inserting the striker;
A latch rotatably provided on the base plate, elastically supported in one direction, and engaged with the striker inserted into the receiving groove; And
And an interlocking portion interlocked with the operation of the latch operating portion to release the locking of the latch.
3. The method according to claim 1 or 2,
Lifting device of the active hood, characterized in that the latch operation is an explosion-type trigger.
3. The method of claim 2,
The linkage unit is rotatably coupled to the base plate, the first interlocking member is elastically supported in one direction and locks the latch;
A second interlocking member rotatably coupled to the base plate and contacting the first interlocking iron to lock the first interlocking member; And
And a link bar for allowing the second interlocking member and the first interlocking member to rotate in succession by operation of the latch operating unit.
KR1020120103731A 2012-09-19 2012-09-19 Lift device of active hood KR20140037506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120103731A KR20140037506A (en) 2012-09-19 2012-09-19 Lift device of active hood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120103731A KR20140037506A (en) 2012-09-19 2012-09-19 Lift device of active hood

Publications (1)

Publication Number Publication Date
KR20140037506A true KR20140037506A (en) 2014-03-27

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KR1020120103731A KR20140037506A (en) 2012-09-19 2012-09-19 Lift device of active hood

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015222194A1 (en) 2014-12-31 2016-06-30 Kia Motors Corporation Front opening safety bar safety hook structure for active hood of a vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015222194A1 (en) 2014-12-31 2016-06-30 Kia Motors Corporation Front opening safety bar safety hook structure for active hood of a vehicle
KR20160081186A (en) 2014-12-31 2016-07-08 기아자동차주식회사 A front pop-up ratch safty hook structure for active hood of car
US10329811B2 (en) 2014-12-31 2019-06-25 Kia Motors Corporation Front pop-up latch safety hook structure for active hood of vehicle
DE102015222194B4 (en) 2014-12-31 2022-07-28 Kia Motors Corporation Front opening locking bar safety hook structure for vehicle active hood

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