DE1808729A1 - Spring shock absorber for vehicles - Google Patents

Description

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DR. E. WIEGAND DIPL-ING. W. NIEMANN 1808729 DR. M. KÖHLER DIPUNG. C. GERNHARDT MONKS HAMIURO

phone, 535476 8000 MDNCHEN15, November 13, 1968

TELEORAMMEi KARPATENT NUSSTAUMSTRASSEIO

W. 13 991/68 13 / Loe

Sumitomo Rubber Industries, Ltd. Kobe-Shi (Japan)

Resilient shock absorbers for vehicles.

The invention relates to a 'resilient Shock absorbers for vehicles and especially on a * Shock absorber for effectively attenuating and attenuating a shock in the event of a collision of vehicles or a vehicle with a building or a telegraph pole to thereby d; en Jj To protect the driver and pedestrians from fatal injuries or the building from damage.

Up to now, various types of shock absorber devices have been proposed, for example the use of an elastic or resilient material of rubber, steel springs and combinations of this and further / complicated mechanisms. These facilities are technical and economical Unsatisfactory in terms of the shock absorption effect

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is sufficient and the mechanism is complicated.

According to the invention, there is provided a resilient shock absorber with a simpler structure and with better impact energy absorbing properties compared with the previously proposed devices created, the compression deformation and elasticity of a foam Made of rubber or plastic with continuous or uninterrupted bladder cells or pores and the reaction force created by the resistance during the movement of one filled into the bladder cells Liquid is generated through this connected will.

The resilient shock absorber for vehicles according to Invention (hereinafter referred to as "elastic or resilient Shock absorber "is designated) has various uses, for example as a vehicle stopper and protective or safety devices for vehicles, i.e. bumpers or bumpers, crush cushions (crush pad), protective or safety cushion or the like.

The invention will hereinafter be described in particular with reference to an embodiment, namely a bumper or a Bumper explained in more detail with reference to the drawing.

Fig. 1 shows a schematic representation Top view (ground plan) of an embodiment, wherein the resilient shock absorber according to the invention for a Vehicle shock absorbers or for a vehicle bumper is provided.

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FIG. 2 shows a sectional view along line II-II of FIGS. _: 1..

Fig. 5 shows a cross-sectional view of another embodiment, wherein the shock absorber according to the invention is intended for a vehicle shock absorber or bumper and

Fig. 4 shows a partial perspective view a further embodiment, wherein the springy shock absorber according to the invention for a Fahrzeugque-tsch- or -preßkissen is provided.

According to Fig. 1 is a resilient or elastic shock absorber according to the invention a, the. on a metal plate c is attached to the front part of a vehicle body b provided in such a way that the shock is absorbed and moderate in the event of a frontal collision. This resilient shock absorber a consists, as shown in Fig., 2, mainly made of a foamed material 1 Rubber or plastic with a number of fine foam pores or cells 2, which are continuous with one another are, with an outer shell 3, consisting of rubber or a soft plastic material, is covered. The cross-sectional shape of the 'resilient shock absorber is not that shown in the figure limited, but can of course be oval, semicircular, rectangular or otherwise proportionate complex shape that occurs with common steel bumpers or steel bumpers. In the outer sheath 3 can be incorporated with a fiber material or wire material for reinforcement purposes.

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A liquid is in the continuous foam pores 2, which are "formed in the foamed material 1, filled to such an extent that the foam pores are completely or partially filled with the liquid are. Any liquid containing the rubber forming the foam 1 and the outer shell 3 or Plastic does not attack, is leveled, although water is best suited for use as such a liquid. When the material of the outer shell and the foam fabric is resistant to oil, can be any oily MIUbI can be used. In some cases, an antifreeze (anti-icing liquid) or an antiseptic agent can be added to this liquid. .

The elastic or resilient shock absorber thus formed can be modified as shown in FIG. Here, one or more small holes 4 are formed on the top or bottom of the shock absorber and closed with a plug 5. When a strong compressive pressure is applied to the resilient shock absorber having such a structure, the plug 5 is loosened and the internal liquid is discharged from the small hole 4, thereby reducing the energy accumulated in the elastic or resilient shock absorber and causing the vehicle body to strongly rebound the collision is prevented and breakage of the outer shell 3 is also avoided.

In another embodiment of the invention, as shown in Fig. 4, is the resilient or elastic one

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Damper according to the invention attached to an instrument panel or dashboard b ^{1 of} a vehicle to form a squeeze pad. 1 denotes a foam made of rubber or plastic with continuous foam pores 2, which are impregnated with a liquid, the foam being completely covered with an outer shell 3. In this case too, one or more small holes 4 can be formed in the upper side thereof and closed with a stopper 5, as shown in FIG. 3.

Since the spring or elastic shock absorber according to the invention has the structure described above has not only "the compressive pressure at the time of collision by the flexibility and elasticity a foamed material made of rubber or plastic moderate and weakened, but also the reaction force created by the resistance during the movement of one in the foamed material Impregnated liquid generated through the continuous foam pores formed therein is significantly related to the increase in the collision speed. Accordingly, can the resilient shock absorber its stiffness. or rigidity so change to reflect the compressive forces of a high-speed and low-speed crash, respectively adapt. In the event of a collision both at high speed and at low speed, the energy-absorbing effect in effectively demonstrated and the retroactive effect on the vehicle or an object (or a person) in the collision is not as strong.

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Moreover, if a compression pressure is only applied to part of the resilient or elastic shock absorber, for example when it collides with a telegraph pole or a corner of a building, irine fluid is removed to foam pores in an uncompressed part and the outer shell is prevented from breaking due to energy accumulation. On the other hand, when a strong compression pressure is fully applied to the resilient or elastic shock absorber, for example when the entire resilient shock absorber is collided, the plug 5 is released and the internal liquid is squeezed out, reducing excessive energy accumulation and preventing a strong impact on the vehicle body , the driver is protected from harm and breaking of the resilient or elastic shock absorber is prevented.

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Claims (2)

- 7 claims 1) Resilient shock absorbers for vehicles, characterized in that that it is mainly made of a foam made of rubber or plastic with continuous Consists of foam pores, which is covered with an outer shell made of rubber or a different plastic, where some or all of the foam pores with a μ Liquid are filled. 2) Resilient shock absorbers for vehicles according to claim 1, characterized in that it consists mainly of a foam made of rubber or plastic with continuous foam pores, the one with an outer shell made of rubber or soft plastic is covered, with a part or all of the foam pores being filled with a liquid and the outer shell with one or more small holes with locking or plugging devices on them upper or lower side fitted 1st. 109824/0505 Blank page