KR102640398B1 - Shock absorption facility for road - Google Patents

Abstract

In the present invention, the front shock absorber module that a vehicle collides with is formed in the shape of a hollow pillar and has a plurality of shaped impact parts with a plurality of slits formed in the longitudinal direction. Because of this, even if the hitting vehicle collides at an angle or offset or the front of the vehicle has various shapes, the shaped impact portion may be distorted to the shape of the front of the vehicle. Therefore, it is possible to minimize vehicle damage by distributing the impact energy to the entire front of the collision vehicle and minimize vehicle separation due to repulsion force after the collision.

Description

Shock absorption facility for road}

The present invention relates to shock absorption facilities for roads.

Generally, shock absorbing facilities are installed at highway junctions or interchange junctions on automobile roads to prevent accidents caused by vehicle collisions. Shock absorption facilities absorb the impact energy of a vehicle before it collides with a structure installed on the road, etc., when the vehicle deviates from the driving lane, causing the vehicle to stop or correcting the direction of the vehicle so that the vehicle can return to its original driving lane.

However, as shown in Figure 1, most vehicle collisions at junctions occur in the form of angular collisions that occur at various angles or offset collisions that occur off-center rather than head-on collisions. When such an angular or offset collision occurs, only a specific part of the front of the vehicle hits the shock absorber.

In the conventional road shock absorption facility (1), when the rigid part of the front part of the vehicle is hit, a large repulsion force is applied, so smooth shock absorption is not achieved and the vehicle is thrown away. A vehicle that is ejected in this way causes a secondary collision accident with another vehicle driving on a divided road. In addition, if a less rigid part of the front part of the vehicle is hit, significant damage occurs to the vehicle, and the likelihood of injury to the occupants increases. In this way, the conventional shock absorption facility was insufficient in preventing accidents due to its weak dispersion function of impact energy due to collision during angular or offset collisions.

Korea Public Patent (10-2007-0099909)

The purpose of the present invention is to provide a shock absorption facility for roads that can solve the above-mentioned problems.

The road shock absorption facility to achieve the above purpose is,

When a vehicle collides, a front shock absorbing module is crushed into the shape of the front of the vehicle to disperse the impact force applied to the vehicle;

A case where the front shock absorbing module is coupled to the front and an internal space is formed; and

It is disposed in the inner space of the case and is characterized by including a plurality of honeycomb buffer members that are formed in a honeycomb structure and absorb impact force applied to the vehicle while being plastically deformed by external impact force.

In the present invention, the front shock absorber module that a vehicle collides with is formed in the shape of a hollow pillar and has a plurality of shaped impact parts with a plurality of slits formed in the longitudinal direction. Because of this, even if the hitting vehicle collides at an angle or offset or the front of the vehicle has various shapes, the shaped impact portion may be distorted to the shape of the front of the vehicle. Therefore, it is possible to minimize vehicle damage by distributing the impact energy to the entire front of the collision vehicle and minimize vehicle separation due to repulsion force after the collision.

In addition, the front shock absorbing module itself can be mounted on the front of a conventional road shock absorption facility, so it can be used as is by adding only the front shock absorbing module without replacing the entire conventional road shock absorption facility, which saves costs. You can.

By providing a honeycomb buffer member with a honeycomb structure, the present invention has excellent energy absorption capacity per weight and can be used for a wide range of impact forces, thereby minimizing damage from vehicle collisions and maximizing the safety of drivers and passengers.

In addition, by varying the arrangement structure of the honeycomb buffer member, it is possible to secure crash performance according to the performance of the road shock absorption facility using honeycomb.

Figure 1 is a diagram showing the vehicle leaving the road due to repulsion force when the vehicle collides with a conventional road shock absorption facility at an angle.
Figure 2 is a diagram showing a shock absorption facility for roads according to an embodiment of the present invention.
Figure 3 is a view showing the upper plate of the case removed from the road shock absorption facility shown in Figure 2.
Figure 4 is an exploded view of the front shock absorbing module of the road shock absorption facility according to an embodiment of the present invention.
FIG. 5 is a view showing the shaped collision portion of the front shock absorbing module shown in FIG. 4.
Figure 6 is a diagram showing a honeycomb buffer member of a road shock absorption facility according to an embodiment of the present invention.

Hereinafter, a shock absorption facility for road use according to an embodiment of the present invention will be described in detail.

As shown in Figures 2 and 3, the road shock absorption facility according to an embodiment of the present invention consists of a front shock absorbing module 100, a case 200, and a honeycomb shock absorbing member 300.

[Front shock absorber module (100)]

When a vehicle collides with the front shock module 100, it is distorted to the shape of the front of the vehicle to disperse and absorb the impact force.

As shown in FIG. 4, the front shock absorbing module 100 is composed of a back plate 110, a shaped collision part 120, and a cover plate 130.

White plate (110), shape collision part (120)

The back plate 110 is formed in a square plate shape and is coupled to the front of the impact frame 220.

One or more shape collision parts 120 are provided. The number of shape collision parts 120 varies depending on the size of the white plate 110. The shape collision portion 120 may be coupled to the white plate 110 in the height direction, the width direction, or a combination of the height direction and the width direction. Additionally, the shape collision portion 120 may be coupled to the white plate 110 by combining one row or multiple rows. Due to this, damage to the collision vehicle is minimized.

Each shape impact portion 120 is formed in the shape of a hollow pillar. The shape collision portion 120 protrudes in front of the back plate 110 to space the cover plate 130 from the back plate 110 at a certain distance and to form a space between the back plate 110 and the cover plate 130.

The shape collision portion 120 may be formed by molding or bending into a U-shaped, ○-shaped, □-shaped, or polygonal shape.

As shown in FIG. 5, in this embodiment, the shape impact portion 120 is formed by bending into a U-shape and is composed of a front portion (M1), a side portion (M2), and a support portion (M3).

The front portion (M1) faces the cover plate (210). The side portion M2 is bent at both the top and bottom of the front portion M1 and extends to a certain length. The support portion M3 is bent inward from the side portion M2 and is coupled to the back plate 110 with bolts or rivets.

The front portion (M1) connected to the side portion (M2) is inclined. By giving an inclination angle to the connection between the side portion (M2) and the front portion (M1), the front portion (M1) is easily pushed to the rear during a collision, thereby facilitating shock absorption. The connection angle between the side part (M2) and the front part (M1) may vary, such as 30° or 45°.

Each shape collision part 120 protrudes from the white plate 110 by the width of the side part M2, and a space is formed inside surrounded by the front part M1 and the side part M2. The degree of protrusion of each shape impact portion 120 is adjusted in consideration of the maximum impact force.

In each shape collision portion 120, a plurality of slits S formed by cutting in the direction of the white plate 110 are formed at regular intervals in the longitudinal direction. In this embodiment, each slit (S) is formed by cutting from the front part (M1) of the shape collision part 120 to a portion of each side part (M2), and the plurality of slits (S) are formed in the longitudinal direction of the front part (M1). is formed at regular intervals. The width and number of slits (S) are adjusted considering the maximum impact force.

In this way, because each shape impact portion 120 is formed in the shape of a hollow pillar and a plurality of slits S are formed in the longitudinal direction, the vehicle that hits it may collide at an angle or offset, or the front of the vehicle may have various shapes. Even if there is, the shape collision part 120 may be distorted according to the shape of the front of the vehicle (aka “stamping”).

Cover plate (130)

The cover plate 130 is coupled to the shape impact portion 120, and is the part where impact force is directly applied when the vehicle collides. The cover plate 130 is made of a thin aluminum material and can be easily distorted. A warning sign for safety may be attached to the outer surface of the cover plate 130.

The cover plate 130 is coupled to the top row shape impact part 120 and the bottom row shape impact part 120 with bolts or rivets. For this purpose, as shown in FIG. 4, a hole through which a bolt or rivet is coupled or passes is drilled in the cover plate 130 at the bottommost level and the shape collision part 120 at the bottommost row.

[Case (200)]

Case 200 is formed in the shape of a long hollow hexahedron. The case 200 has a front shock absorbing module 100 coupled to the front.

As shown in FIG. 3, in this embodiment, the internal space A of the case 200 is divided into five compartments. The internal space (A) may be divided in various ways depending on the arrangement of the honeycomb buffer member 300. The internal space (A) can be opened and closed by opening and closing the top of the case 200.

[Honeycomb buffer member (300)]

As shown in FIG. 6, a plurality of honeycomb buffer members 300 are provided and are disposed in the internal space A of the case 200.

The honeycomb buffer member 300 is made of aluminum material.

As shown in FIG. , the honeycomb buffer member 300 is formed in a honeycomb structure and is plastically deformed by an external impact force to absorb the impact force applied to the vehicle. The honeycomb structure is a structure in which multiple unit cells having the shape of hexagonal pillars are connected continuously. The cross section where the unit cells are connected has a honeycomb shape. Each honeycomb buffer member 300 is formed to have a constant area and thickness, and the plurality of honeycomb buffer members 300 are configured to have the same size.

For example, four honeycomb buffer members 300 are provided, and the first compartment of the five-divided internal space (A) is left empty and arranged in a row in the remaining compartments. At this time, the plurality of honeycomb buffer members 300 may have different physical properties. Here, physical properties mean collision performance. In other words, it can be said to be the ability to absorb energy during a collision. Honeycomb buffer members 300 tailored to the energy characteristics of each speed can be arranged in order of the magnitude of the applied impact force.

Two types of honeycomb buffer members 300, one with high physical properties and one with lower physical properties, are prepared. Honeycomb buffering members 300 with high physical properties are placed in the two compartments where the initial strong impact force acts, and honeycomb buffering members with lower physical properties than the first two compartments are placed in the remaining two compartments where the impact force alleviated by energy absorption in the first two compartments acts. By arranging (300), the impact force can be alleviated.

Alternatively, four honeycomb buffer members 300 whose physical properties gradually decrease are prepared. The impact force may be gradually alleviated by placing the honeycomb buffering member 300 with the highest physical properties in the compartment where the initial strong impact force is applied, and arranging the honeycomb buffering member 300 with lower physical properties in the subsequent compartments.

In this way, the impact force alleviated by the front shock absorbing module 100 can be accepted as is into the first empty internal space (A), and the impact force can be gradually alleviated as it goes backwards.

As another example, five honeycomb buffer members 300 may be provided and arranged in a row in the internal space A divided into five pieces. At this time, the plurality of honeycomb buffer members 300 all have the same physical properties. Since one type of honeycomb buffer member 300 is used, manufacturing is simplified.

In addition to the above-described methods, the honeycomb buffer members 300 can be arranged in various ways by varying the number and physical properties of the honeycomb buffer members 300.

Hereinafter, the operation of a road shock absorption facility according to an embodiment of the present invention will be described in detail. Basically refer to FIGS. 1 to 6.

When a vehicle collides with the front shock module 100, the front shock module 100 is distorted to the shape of the front of the vehicle being struck and primarily absorbs the impact force applied to the vehicle.

Since the shape impact portion 120 located at the rear of the cover plate 130 of the front shock absorber module 100 is formed in the shape of a hollow pillar and has a plurality of slits (S) formed in the longitudinal direction, the vehicle is When the module 100 collides with the cover plate 130 and is pushed in, the shaped collision portion 120 is distorted to the shape of the front of the vehicle.

Then, the support force for the front part of the vehicle is increased and the impact energy is distributed throughout the entire front part of the vehicle. As a result, vehicle damage is minimized and vehicle separation due to repulsive force after a collision is minimized.

The vehicle, whose impact force is primarily alleviated by the front shock absorber module 100, pushes into the case 200 along with the shape impact part 120 and the cover plate 130, which are distorted according to the shape of the front of the vehicle. The honeycomb buffer member 300 disposed in the internal space A of the case 200 is plastically deformed by the relaxed impact force and secondarily absorbs the impact force applied to the vehicle.

100: Front shock absorber module 110: White plate
120: Shape collision part 130: Cover plate
200: Case 300: Honeycomb buffer member
A: Internal space M1: Front part
M2: side part 3: support part
S: slit

Claims (5)

When a vehicle collides, a front shock module that is crushed into the shape of the front of the vehicle to disperse the impact force applied to the vehicle; A case where the front shock absorbing module is coupled to the front and an internal space is formed; and a plurality of honeycomb buffer members disposed in the inner space of the case and formed in a honeycomb structure to absorb the impact force applied to the vehicle while being plastically deformed by an external impact force,
The front shock module is,
A white plate coupled to the case; One or more shape collision parts coupled to the white plate; And a cover plate coupled to the shape impact portion and hitting the vehicle,
The shape collision part consists of a front part, a side part, and a support part,
The front portion faces the cover plate, the side portion is bent at both the top and bottom of the front portion and extends to a certain length, and the support portion is bent inward at the side portion and is coupled to the back plate with bolts or rivets,
A space is formed inside surrounded by the front part and the side part, and a plurality of slits are formed in the front part and the side part at regular intervals in the vertical direction,
When a vehicle collides with the front shock module at an angle or offset, the front portion and the side portion are distorted as if stamped in the shape of the front of the vehicle, and the plurality of honeycomb shock absorbing members remain in contact with the front portion and the side portion. A shock absorbing facility for roads characterized by pushing in. delete delete According to paragraph 1,
A shock absorption facility for roads, characterized in that the shape impact part is coupled to the white plate in the height direction, the width direction, or a combination of the height direction and the width direction. delete