Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
  • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
  • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
  • B60R19/20—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact containing mainly gas or liquid, e.g. inflatable
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
  • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
  • B66D1/54—Safety gear
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
  • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
  • B60R19/24—Arrangements for mounting bumpers on vehicles
  • B60R19/38—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
  • B60R19/40—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles in the direction of an obstacle before a collision, or extending during driving of the vehicle, i.e. to increase the energy absorption capacity of the bumper
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
  • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
  • B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
  • B66D5/24—Operating devices
  • B66D5/26—Operating devices pneumatic or hydraulic
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
  • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
  • B60R19/24—Arrangements for mounting bumpers on vehicles
  • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
  • B60R19/32—Fluid shock absorbers, e.g. with coaxial coil springs
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
  • B66D2700/00—Capstans, winches or hoists
  • B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure

Definitions

• This invention relates to an extendable safety bumper for vehicle and, more particularly, to an extendable safety bumper that can protect a driver from a traffic accident by mounting a shock-absorbing device in a bumper having a extendable structure and increase safety and endurance by minimizing damage of vehicle caused by the traffic at the same time.
• a traffic accident by car-to-car occupies statistically about 75% and more in all kinds of traffic accident.
• a bumper having a shock-absorbing function is mounted to the front and rear area of conventional vehicle in order to protect drivers and a car from the traffic accident.
• a conventional bumper for vehicle used for preventing drivers and a vehicle from traffic accidents.
• the bumper has a space defined in the main body of the bumper (10) made of flexible material and a shock-absorbing member (20) or a shock-absorbing frame (30) is mounted in the space. Said bumper is attached to the front and rear area of the vehicle.
• said bumper has only used the flexibility of the material, in the case of an accident by a car driving in high speed, there occurs an endurance problem in that said bumper is broken down without absorbing a shock by the accident completely, thus cannot performing a function for guarding the car and drivers.
• the shock- absorbing member or the shock-absorbing frame mounted in the body of the bump has inherently a weak restoring capability and a weak shock-absorbing capability, thus guarding the car and drivers incompletely.
• the conventional bumper can be, in case of the off set collision of a car, deformed or broken easily by a slight collision due to a shock concentration phenomenon of an impacted portion of the car to increase damage to the car.
• the shock concentrated on the impacted portion cannot be dispersed smoothly to external to be transferred to drivers directly, thus increasing drivers' injury.
• the object of this invention is to sole above-mentioned problems.
• the present invention provides an extendable safety bumper for vehicle that comprises a extendable bumper frame and a shock- absorbing device mounted in the bumper frame.
• Said extendable bumper frame and said shock-absorbing device have a improved safety and endurance such that in the case of from a big traffic accident caused by a car driving in high speed to a slight crash, said foldable bumper frame and said shock-absorbing device are performing a shock-absorbing function and decreasing a driver's injury and a damage of the car through the shock-absorbing function.
• the other object of the present invention is to provide an extendable safety bumper for vehicle that is comprised of a number of link members having been connected by a joint at their both ends respectively.
• the bumper has a flexibility, in the case of accident, the damage to the bumper is minimized.
• the members in the crashed portion off the bump are bent about its joint by the collision shock to avoid the collision shock, and to prevent the driver and the car from the accident effectively.
• the present invention comprises a bumper frame having a link-structure and a sealed space therein, and a driver portion mounted on the backside of the bumper frame.
• a shock-absorbing portion comprising an airbag being divided by partitions and to define a honeycomb
• a buffering portion comprising an air cylinder
• the driver portion controls the air cylinder and the airbag through an air circulation line connected to the air cylinder and the airbag.
• Fig. 1 is a diagram showing a conventional safety bumper for vehicle
• Fig. 2 is a perspective diagram showing an extendable safety bumper installed on a vehicle according to the present invention
• Fig. 3 is a diagram showing the inside of the extendable safety bumper according to the present invention.
• Fig. 4 is a partially enlarged diagram showing the extendable safety bumper according to the present invention.
• Fig. 5 is a diagram showing the telescopic function of the extendable safety bumper according to the present invention.
• Fig. 6 is a diagram showing the extendable safety bumper in frontal clash, according to the present invention
• Fig. 7 is a diagram showing the extendable safety bumper in the off set collision, according to the present invention.
• Fig. 2 is a perspective diagram showing a bumper installed on a vehicle according to the present invention
• Fig. 3 is a diagram showing an inside of the bumper according to the present invention
• Fig. 5 is a diagram showing the telescopic function of the extendable safety bumper according to the present invention.
• the safety bumper is comprised of a bumper frame (1) having a shock - absorbing portion (2) and a buffering portion (3) therein, and a driver portion (5) connected to an air circulation line (4). Said bumper is combined with an underframe (6) of vehicle.
• the bumper frame (1) has numbers of link members (11, 11') connected each other by a hinge that is only rotated to one direction in the case of collision.
• the link member (11') defining the right and left side of the bumper is shaped as a square bar having a recess in its one side.
• a guide groove (111) is formed in the recess that is connected to the underframe (6).
• a telescopic sealing means (12) is formed by at least three plate-type connection structures separated with each other in an upper and lower side of the bumper frame (1).
• said shock-absorbing portion (2) has numbers of structures divided with each other by a partition in the right side, left side and center portion of the inside of the bumper frame (1).
• said shock-absorbing portion has a number of airbags structured as honeycomb that are hexagonal rod and made of a soft material as shown in Fig. 3 and 4.
• a mutual communicating hole (211) is formed in the partition of said airbag, and a pressure regulating membrane (212) performing bursting function in the case of an impaction pressure over a predetermined pressure is formed on the upper side of each airbag.
• two buffering portions (3) are formed between the shock-absorbing portions (2) as shown in Fig. 3.
• the buffering portion (3) is a space portion separated from the shock-absorbing portion and a conventional telescopic air cylinder.
• said air circulation line is a kind of conduit connection structure that provides an air pressure produced by the driver portion (5) to the airbag (21) and the air cylinder (31) as described hereinafter. It is preferably to provide the air circulation line with a manifold (41).
• conduit connection structure with a first and second safety valves (411, 412) and make the conduit with a soft rubber to have a flexibility against a external stress.
• Said driver portion (5) is a means for driving the extendable safety bumper for vehicle according to the present invention.
• Said driver portion (5) is comprised of an air pump (51), an air tank (53) having a regulation valve (52) spaced apart from the air pump (51) and a air direction-changing switch (54) adjacent the air tank (53), and is integrally connected to the air circulation line (4) as shown Fig. 3.
• Said air direction changing switch (54) comprises a switch cylinder (541) changing the air pressure by a push rod (P) and a return spring (S) as shown in the enlarged D portion of Fig. 3.
• the underframe (6) is for mounting the bumper frame on a vehicle and has a horizontal structure comprised of two rod having rectangular-section and positioned oppositely in the right and left sides of the front of the vehicle.
• the extendable safety bumper for vehicle is connected to the front of the vehicle as shown in Fig. 2.
• the air pump (51) in the driver portion (51) is activated and an air pressure produced by the air pump is compressed and stored in the air tank (53) when the vehicle is driven.
• the air pressure compressed and stored in the air tank (53) is supplied to the shock-absorbing portion (2) and the buffering portion (3) via the air circulation line (4) under the control of the regulation valve (52) and the air direction-changing switch (54).
• the airbag (21) and the air cylinder (31) are expanded by the air pressure supplied and push the telescopic sealing means (12) in the bumper frame (1) in the front direction of the vehicle by the underframe (6).
• the airbag (21) and the air cylinder (31) in the bumper frame (1) are performing a flexible shock-absorbing function using the air pressure supplied in the case of a frontal clash.
• the air pressure supplied to the airbag (21) and the air cylinder (31) is bypassed through the first safety valve (411) and the second safety valve (422) by the amount of the shock pressure against the external shock impacted on the bumper frame (1), thus preventing a damage of the body of the vehicle from the clash via the shock-absorbing function.
• the first and the second valves (411, 412) as well as the pressure regulating membrane of the airbag (21) and the air cylinder expanded by the air pressure supplied itself are broken down to absorb the shock caused by the clash, even if the body of the vehicle was damaged greatly, the driver can be prevented from the shock.
• the safety bumper for vehicle having the shock-absorbing function in the case of collision is retracted in parking to shorten the length of the vehicle.
• the push rod P of the air direction- changing switch (54) is operated to change the direction of the air flow such that the air in the airbag (21) and the air cylinder (31) is released by the air pump and the bumper frame (1) is retracted by a force produced by a lowered pressure in the airbag and the air cylinder.
• the safety bumper having the projection and the retraction function performs a stable telescopic action by the guide projection (61) of the underframe (6) engaged with the guide groove (111).
• the safety bumper for a vehicle comprises the bumper frame having the shock-absorbing portion and the buffering portion and telescopic function to have a broad shock-absorbing effect from a big accident by the car driving in high speed to a slight collision.
• the shock-absorbing effect it is possible to decrease greatly the injury of the driver and the damage of the car as well as to increase the safety and the endurance of the bumper.
• the bumper frame has the flexibility in accordance with the link connection structure comprised of a number of the members connected with each other, the angle of inclination is produced in the locally crashed portion in the case of off set (local) collision to protect the driver from the accident safely.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Body Structure For Vehicles (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=19662170

Family Applications (1)

Country Status (3)

Cited By (3)

Families Citing this family (5)

Citations (4)

Family Cites Families (2)

• 2000
  • 2000-04-06 KR KR2020000009739U patent/KR200194658Y1/ko not_active IP Right Cessation
  • 2000-04-06 KR KR1020000017941A patent/KR100328687B1/ko not_active IP Right Cessation
• 2001
  • 2001-04-04 WO PCT/KR2001/000568 patent/WO2001076916A1/en active Application Filing
  • 2001-04-04 AU AU48878/01A patent/AU4887801A/en not_active Abandoned

Patent Citations (4)

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