KR20160127399A - A Car Defense having Buffer Means and Constructing Method - Google Patents

A Car Defense having Buffer Means and Constructing Method Download PDF

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Publication number
KR20160127399A
KR20160127399A KR1020150058743A KR20150058743A KR20160127399A KR 20160127399 A KR20160127399 A KR 20160127399A KR 1020150058743 A KR1020150058743 A KR 1020150058743A KR 20150058743 A KR20150058743 A KR 20150058743A KR 20160127399 A KR20160127399 A KR 20160127399A
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KR
South Korea
Prior art keywords
auxiliary
impact
buffer means
guard rail
vehicle
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KR1020150058743A
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Korean (ko)
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KR101695017B1 (en
Inventor
문진기
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한울로드 주식회사
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Priority to KR1020150058743A priority Critical patent/KR101695017B1/en
Publication of KR20160127399A publication Critical patent/KR20160127399A/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0407—Metal rails
    • E01F15/0423—Details of rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0461—Supports, e.g. posts

Abstract

The present invention relates to a guardrail and a construction method for protecting a vehicle having a buffering means, in particular, an auxiliary strut is further provided in a main strut constituting a guardrail, and a buffering means of a rubber material is installed inside the auxiliary strut And the buffer means is inflated at the moment of impact so as to provide a maximum buffering effect from collision of the vehicle and at the same time to protect the main strut.
A guard rail (10) made of a steel material for absorbing the initial impact of the vehicle, the guard rail (10) being formed in the shape of a wave so that the primary impact is absorbed while coming into contact with a wheel or a vehicle body of the vehicle; An auxiliary strut (20) installed on the rear surface of the guard rail (20), which is in contact with the guard rail (20) and is coupled to the guard rail (20); A shock absorber (30) which is inserted into the auxiliary strut in two parts and is slid while absorbing an impact transmitted to the auxiliary strut by a third order; A main support (40) installed on a rear surface of the auxiliary support and deformed while absorbing the impact transmitted through the buffer means (4); The first buffer part 61 and the first electrode part 62 inserted perpendicular to the inner side of the buffer means and generating a magnetic field when electricity is applied to the coil through the electrode part 62, Means (60); And a second buffer means which is inserted perpendicularly into the other side of the buffer means and which is formed of a second coil portion and a second electrode portion and which is spaced apart from the first buffer means 60 by applying electricity to the coil through the electrode portion, (70).

Description

Technical Field [0001] The present invention relates to a vehicle guard rail having a buffer means,

More particularly, the present invention relates to a vehicle guard rail having a shock absorbing means and a method of constructing the same. More particularly, Wherein the buffer means is inflated at the moment of impact so as to provide a maximum buffering effect from collision of the vehicle and at the same time to protect the main strut.

Generally, various safety devices are installed on the road to protect the vehicle, driver and passengers. These safety devices are installed on the center line or on the road to prevent the lane departure and fall of the vehicle, and to protect the pedestrians. A variety of vehicle protection fences have been proposed to achieve.

In other words, in general, a guide rail (also referred to as a "barrier") limits the width of a running road and secures the occupant by preventing the vehicle from being detached to the outside of the road or from penetrating the center line. It has the purpose of preventing car accident.

The guide rail is widely used as a main material of steel or aluminum. Particularly, the guide rail made of aluminum exhibits an excellent effect for preventing corrosion due to contamination of the exterior and exhaust gas, and is widely used because of its low maintenance cost. In spite of these advantages, the aluminum guide rail has a lower impact bending strength than the guide rail made of iron. This means that the cost is increased, so that the thickness is minimized within the allowable range. If the impact amount exceeds the allowable strength at the time of collision with the vehicle, the risk of causing a fatal accident is obtained. Therefore, a new guide rail capable of effectively absorbing the impact energy is required as the strength increases so that the vehicle and the passenger can be simultaneously protected at the time of a collision.

In other words, a general guide rail is not a structure that absorbs the impact when a vehicle collides, but rather a structure that prevents a forward vehicle from invading the opposite lane or departing from the roadside. In the event of a vehicle collision, There is a problem that it occurs.

In order to solve the above-mentioned problems, Japanese Patent No. 936948 discloses that when the accident vehicle collides with the shock absorbing road guard, the vehicle collides with the shock absorbing cylinder and the shock absorbing cylinder is moved in the same direction So that the accident vehicle is returned to the normal traveling direction.

However, since the patent registered in advance is advantageous in minimizing damage to the human body by absorbing the shock when the vehicle collides with the vehicle, it is directly transmitted to the shock absorbing cylinder on the lower side where impact energy is concentrated in the event of a vehicle collision. The impact is directly applied to the strut and the deformation of the strut is generated, and at the same time, the vehicle is detached from the road, resulting in damage to the vehicle and damage to people.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and an object of the present invention is to provide a vehicle support railing, , The auxiliary struts, the buffering means, and the main holding sequence, thereby minimizing the impact transmitted to the vehicle by sufficiently absorbing the impact of the vehicle in the auxiliary strut and the buffer means, and also protecting the main strut It has its purpose.

As means for achieving the above object,

The present invention relates to a guard rail (10) for absorbing an initial impact of a vehicle, the guard rail (10) being made of an iron material and having a wave shape to absorb a primary impact when the wheel or the vehicle body contacts the vehicle. An auxiliary strut (20) installed on the rear surface of the guard rail (20), which is in contact with the guard rail (20) and is coupled to the guard rail (20); A shock absorber (30) which is inserted into the auxiliary strut in two parts and is slid while absorbing an impact transmitted to the auxiliary strut by a third order; A main support (40) installed on a rear surface of the auxiliary support and deformed while absorbing the impact transmitted through the buffer means (4); The first buffer part 61 and the first electrode part 62 inserted perpendicular to the inner side of the buffer means and generating a magnetic field when electricity is applied to the coil through the electrode part 62, Means (60); And a second buffer means which is inserted perpendicularly into the other side of the buffer means and which is formed of a second coil portion and a second electrode portion and which is spaced apart from the first buffer means 60 by applying electricity to the coil through the electrode portion, (70).

The first auxiliary buffering means 60 and the second auxiliary buffering means 70 are inserted into the space between the first auxiliary buffering means 60 and the second auxiliary buffering means 70, An air injection hose 80 for expanding a space for shock buffering; And a compressor (100) for supplying air through the air inlet hose (80).

Further, an impact sensor 90 for detecting an impact applied to the guard railing; When the data of the impact detection sensor 90 is received, the first conductive fill-up buffering means 60 and the second auxiliary buffering means 70 supply electricity to each other to repel each other to form a space portion, And a control unit (110) for supplying air through the air supply hose (80) installed in the air conditioning unit to further expand the space to maximize the impact reduction effect.

A guard rail (10) made of a steel material and configured in the form of a wave so that the primary impact is absorbed when coming into contact with a wheel or a vehicle body of the vehicle by absorbing the initial impact of the vehicle, is constructed; The auxiliary support (20) is installed on the rear side of the guard rail (20), and the auxiliary guard (20) is connected to the guard railing and the rail to join and absorb the shock transmitted to the guard rail. A shock absorber (30) is installed to divide the shock absorber (30) into three parts while being inserted into the auxiliary strut A main strut 40 installed on the rear surface of the auxiliary strut and deformed while absorbing the impact transmitted through the buffer means in a fourth order; The first buffer part 61 and the first electrode part 62 inserted perpendicular to the inner side of the buffer means and generating a magnetic field when electricity is applied to the coil through the electrode part 62, (60); And a second buffer means which is inserted perpendicularly into the other side of the buffer means and which is formed of a second coil portion and a second electrode portion and which is spaced apart from the first buffer means 60 by applying electricity to the coil through the electrode portion, (70).

The first auxiliary buffering means 60 and the second auxiliary buffering means 70 are inserted into the space between the first auxiliary buffering means 60 and the second auxiliary buffering means 70, (80) for enlarging the space for impact buffering; Installing a compressor (100) that provides air through the air inlet hose (80); A shock sensor 90 for detecting an impact applied to the guard rail; When the data of the shock detection sensor 90 is received, the first auxiliary buffer means 60 and the second auxiliary buffer means 70 are supplied with electricity so as to repel each other to form a space portion, And a control unit 110 is installed to supply air through the installed air inlet hose 80 to further expand the space to maximize the impact reduction effect.

As described above, according to the present invention, an auxiliary strut is further provided in a main strut constituting a rail for a vehicle protection, and a buffer material of a rubber material is provided in the auxiliary strut, so that a protective railing, The main support and the main support are arranged in the order of the main support and the auxiliary support and the buffer means absorbs the impact of the vehicle sufficiently to minimize impact transmitted to the vehicle and also to protect the main support.

Brief Description of the Drawings Fig. 1 is a whole construction view of a guardrail according to the present invention. Fig.
2 is a section view of a guardrail for protection of the present invention.
3 is a sectional view of the cushioning means, the auxiliary cushioning means and the pneumatic cushioning means of the present invention.
4 is an overall structural view showing a state in which the buffer means of the present invention is opened.
5 is a plan view of the present invention;
6 is a plan view of a state in which the buffer means of the present invention is opened.
FIG. 7 is a conceptual diagram for injecting air into the auxiliary buffer means of the present invention; FIG.
8 is a cross-sectional view of injecting air into the auxiliary buffer means of the present invention.
9 is a cross-sectional view of the present invention when no air is injected.
10 is a view for supplying electricity to the auxiliary buffer means of the present invention.
FIG. 11 is a conceptual diagram showing the supply of electricity to the auxiliary buffer means of the present invention to repel. FIG.
12 is a conceptual diagram of the operation of the control unit using the impact sensor.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not to be construed as limiting the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms used below are defined in consideration of the functions of the present invention, which may vary depending on the user, intention or custom of the operator. Therefore, the definition should be based on the contents throughout the present invention.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The configuration is omitted as much as possible, and a functional configuration that should be additionally provided for the present invention is mainly described.

Those skilled in the art will readily understand the functions of the components that have been used in the prior art among the functional configurations that are not shown in the following description, The relationship between the elements and the components added for the present invention will also be clearly understood.

In order to efficiently explain the essential technical features of the present invention, the following embodiments properly modify the terms so that those skilled in the art can clearly understand the present invention, It is by no means limited.

As a result, the technical idea of the present invention is determined by the claims, and the following embodiments are merely illustrative of the technical idea of the present invention in order to efficiently explain the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. .

Brief Description of the Drawings Fig. 1 is a whole construction view of a guardrail according to the present invention. Fig.

FIG. 2 is a cross-sectional view of a guard for protection according to the present invention. FIG.

3 is a sectional view of the cushioning means, the auxiliary cushioning means and the pneumatic cushioning means of the present invention.

4 is an overall structural view showing a state in which the buffer means of the present invention is opened.

5 is a plan view of the present invention;

6 is a plan view of a state in which the buffer means of the present invention is opened.

FIG. 7 is a conceptual diagram for injecting air into the auxiliary buffer means of the present invention; FIG.

8 is a cross-sectional view of injecting air into the auxiliary buffer means of the present invention.

9 is a cross-sectional view of the present invention when no air is injected.

10 is a view for supplying electricity to the auxiliary buffer means of the present invention.

FIG. 11 is a conceptual diagram showing the supply of electricity to the auxiliary buffer means of the present invention to repel. FIG.

12 is a conceptual diagram of the operation of the control unit using the impact sensor,

The constituent elements of the present invention largely consist of guard rails 10, auxiliary struts 20, buffering means 30 (30a, 30b) and main struts 40.

The guard railing 10 absorbs the initial impact of the vehicle and is made of iron. The guard railing 10 is formed in the shape of a wave so that the primary impact is absorbed while coming into contact with the wheel or the vehicle body of the vehicle.

The auxiliary struts 20 are installed on the rear side of the guard rails and are designed to collapse while absorbing the impact transmitted to the guard rails by contacting and contacting the guard rails.

The buffering means (30) is inserted into the auxiliary strut and is designed to be slid down while absorbing the impact transmitted to the auxiliary strut by the third order.

The main strut 40 is installed on the rear side of the auxiliary strut and is designed to be deformed while absorbing the impact transmitted through the buffer means fourtharily.

Further, the present invention further comprises auxiliary buffer means 60, 70, inserted between the buffer means 30a, 30b, and made of a film in which the buffer means is swollen by electric power supply.

The first auxiliary buffering means 60 includes a first coil portion 61 and a first electrode portion 62. When electricity is applied to the coil through the electrode portion 62, a magnetic field is generated.

The second auxiliary buffer means 70 is provided corresponding to the first auxiliary buffer means and includes a second coil portion 71 and a second electrode portion 72 to apply electricity to the coil through the electrode portion, Spaced apart from the means 60 to form a space.

The air pressure supply means 80 may be further provided between the auxiliary shock absorbing means 60 and 70 so that the auxiliary shock absorbing means 60 and 70 can simultaneously open the holes 81 so that the space portion is strongly maintained, so that the impact due to the vehicle collision can be minimized.

The shock absorber 100 is provided with air pressure providing means 80 for providing air and an impact sensor 90 is installed on the protective railing so that the pressure in the compresor 100 To supply air compressed by the compressed air to the air pressure providing means 80 and at the same time outputting a control signal to supply electricity to the auxiliary buffer means.

That is, the present invention selectively installs an area where a risk of an accident is high and a vehicle is likely to continuously collide with the guard railing 10, and when one vehicle collides against the guard railing 10, 100 to provide sufficient air pressure to provide a sufficient cushioning pressure for the next continuously impacting vehicle.

In other words, since the vehicle may collide continuously in the accident-stranded area, the air pressure is provided for a certain period of time to have sufficient space in the auxiliary shock absorbing means 60 and 70, thereby minimizing the impact caused by the vehicle collision, Thereby protecting the column 40.

Hereinafter, the assembly method of the present invention will be described.

The present invention relates to a guard rail comprising a guard rail (10), an auxiliary strut (20), a buffer means (30) and a main strut (40) First, the main stanchions 40 are installed at regular intervals.

An auxiliary strut 20 is installed on the front surface of the main strut 40 and a buffering means 30 is installed inside the auxiliary strut 20.

A guard rail 10 is provided on the surface of the auxiliary support 20 and the guard rail 10 is fixed to the main support 40 using bolts. That is, the guard rail, the auxiliary strut, the buffering means, and the main strut are fixed by bolts.

The auxiliary buffering means 60 and 70 can be further provided inside the buffering means 30. The buffering means 30a and 30b are divided into two parts and auxiliary buffers 60 and 60 in film form are provided on the surface of the buffering means 30, 70 are installed.

The auxiliary buffering means 60 and 70 are configured to operate in conjunction with the impact sensor 90 installed in the guard rail 10 and are connected to the control unit 110 installed at one end of the main support 40 When the impact of the automobile is sensed by the impact sensor 90, electricity is supplied to the films constituting the auxiliary buffer means 60 and 70 so that the buffer means 30a and 30b are opened to the left and right, So that the buffering effect can be maximized.

That is, when the protection railing 10 is impacted, the rubber material constituting the buffer means is spread to the left and right so as to form a sufficient space portion necessary for buffering, so that a sufficient shock absorbing action is performed according to the impact of the vehicle.

Of course, when the buffer assisting means operates, the main support can be greatly protected, thereby preventing the main support from being damaged easily.

Hereinafter, the operation and effect of the present invention will be described.

The present invention absorbs the impact through the guard railing 10, the auxiliary struts 20, the buffering means 30 and the main strut 40 when the vehicle collides with the guardrail 10 .

When the impact of the vehicle is detected by the impact sensor 90 installed on the guard railing 10, the control unit 110 detects an impact of the reference shock If it is not less than the reference value, electricity is supplied to the auxiliary buffer means 60 and 70 so that the buffer means swells in the form of a waveform to form a maximum space portion capable of buffering.

When the vehicle collides with the guard rail 10, the guard rails 10, the auxiliary struts 20, the buffering means 30 and the auxiliary shock absorbing means 60, So that the vehicle can be sufficiently protected and at the same time the main support 40 is protected.

That is, when the main stalk 40 easily falls, the vehicle can collapse through the guard rail 10, thereby protecting the main stalk 40 and preventing the vehicle from falling through the guard rail .

When electricity is supplied to the first coil portion 61 and the second coil portion 71 constituting the auxiliary buffer means 60 and 70, the first auxiliary buffer means 60 and the second auxiliary buffer means 60, The space portion is expanded while the auxiliary buffer means 70 is repelled.

That is, since the buffer means 30 of the present invention is made of a rubber material, when electricity is applied to the auxiliary buffer means 60 and 70, a space portion is formed while expanding the rubber material, The presence of the space portion becomes possible.

10: Guard railing
20: auxiliary landings
30: buffer means
40: Main landings
60: first auxiliary buffer means
70: second auxiliary buffer means
80: air pressure providing means
90: Shock sensor
100:
110: COMPRESSOR

Claims (5)

A guard rail (10) made of a steel material for absorbing the initial impact of the vehicle, the guard rail (10) being formed in the shape of a wave so that the primary impact is absorbed while coming into contact with a wheel or a vehicle body of the vehicle;
An auxiliary strut (20) installed on the rear surface of the guard rail (20), which is in contact with the guard rail (20) and is coupled to the guard rail (20);
A shock absorber (30) which is inserted into the auxiliary strut in two parts and is slid while absorbing an impact transmitted to the auxiliary strut by a third order;
A main support (40) installed on a rear surface of the auxiliary support and deformed while absorbing the impact transmitted through the buffer means (4);
The first buffer part 61 and the first electrode part 62 inserted perpendicular to the inner side of the buffer means and generating a magnetic field when electricity is applied to the coil through the electrode part 62, Means (60);
And a second buffer means which is inserted perpendicularly into the other side of the buffer means and which is formed of a second coil portion and a second electrode portion and which is spaced apart from the first buffer means 60 by applying electricity to the coil through the electrode portion, (70). ≪ Desc / Clms Page number 15 > The method according to claim 1,
The first auxiliary buffering means 60 and the second auxiliary buffering means 70 are interposed between the first auxiliary buffering means 60 and the second auxiliary buffering means 70 and provide air to the space between the first auxiliary buffering means 60 and the second auxiliary buffering means 70, An air inlet hose 80 for expanding a space for buffering;
Further comprising a compressor (100) that provides air through the air inlet hose (80). ≪ Desc / Clms Page number 13 > 3. The method of claim 2,
An impact detection sensor 90 for detecting an impact applied to the guard rail;
When the data of the impact detection sensor 90 is received, the first conductive fill-up buffering means 60 and the second auxiliary buffering means 70 supply electricity to each other to repel each other to form a space portion, Further comprising a control unit (110) for controlling the air supply hose (80) installed in the air supply unit . A guard rail (10) made of a steel material and configured in the form of a wave so that the primary impact is absorbed when coming into contact with a wheel or a vehicle body of the vehicle by absorbing the initial impact of the vehicle, is constructed;
The auxiliary support (20) is installed on the rear surface of the guard rail (11), and is brought into contact with the guard rail (11) to absorb and absorb the shock transmitted to the guard rail (11).
A shock absorber (30) is installed to divide the shock absorber (30) into three parts while being inserted into the auxiliary strut
A main strut 40 installed on the rear surface of the auxiliary strut and deformed while absorbing the impact transmitted through the buffer means in a fourth order;
The first buffer part 61 and the first electrode part 62 inserted perpendicular to the inner side of the buffer means and generating a magnetic field when electricity is applied to the coil through the electrode part 62, (60);
And a second buffer means which is inserted perpendicularly into the other side of the buffer means and which is formed of a second coil portion and a second electrode portion and which is spaced apart from the first buffer means 60 by applying electricity to the coil through the electrode portion, (70) is mounted on the rail (10). 5. The method of claim 4,
The first auxiliary buffering means 60 and the second auxiliary buffering means 70 are interposed between the first auxiliary buffering means 60 and the second auxiliary buffering means 70 and provide air to the space between the first auxiliary buffering means 60 and the second auxiliary buffering means 70, Installing an air inlet hose (80) which enlarges the space for buffering;
Installing a compressor (100) that provides air through the air inlet hose (80);
A shock sensor 90 for detecting an impact applied to the guard rail;
When the data of the shock detection sensor 90 is received, the first auxiliary buffer means 60 and the second auxiliary buffer means 70 are supplied with electricity so as to repel each other to form a space portion, Wherein a control unit (110) is installed to supply air through the installed air inlet hose (80) to further expand the space to maximize the impact reduction effect.
KR1020150058743A 2015-04-27 2015-04-27 A Car Defense having Buffer Means and Constructing Method KR101695017B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114313290A (en) * 2022-02-21 2022-04-12 浙江东车智能科技有限公司 Airport special vehicle airplane leaning safety auxiliary system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100600477B1 (en) * 2004-08-11 2006-07-13 광주과학기술원 Apparatus for magnetic type damping collision force of high speed vehicle
KR101250533B1 (en) * 2012-09-24 2013-04-12 (주)효명 A buffering guiderail unit using double support
KR101250534B1 (en) * 2012-09-24 2013-04-12 (주)효명 A guiderail shpaping bumper using shock absorption unit
KR20130073357A (en) * 2011-12-23 2013-07-03 주식회사 포스코 Active guard fence

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100600477B1 (en) * 2004-08-11 2006-07-13 광주과학기술원 Apparatus for magnetic type damping collision force of high speed vehicle
KR20130073357A (en) * 2011-12-23 2013-07-03 주식회사 포스코 Active guard fence
KR101250533B1 (en) * 2012-09-24 2013-04-12 (주)효명 A buffering guiderail unit using double support
KR101250534B1 (en) * 2012-09-24 2013-04-12 (주)효명 A guiderail shpaping bumper using shock absorption unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114313290A (en) * 2022-02-21 2022-04-12 浙江东车智能科技有限公司 Airport special vehicle airplane leaning safety auxiliary system and method
CN114313290B (en) * 2022-02-21 2024-03-29 浙江东车智能科技有限公司 Airport special vehicle leaning safety auxiliary system and method

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