Chassis beam type for car

 

(57) Abstract:

The invention relates to a chassis 1 beam type for vehicles, comprising a Central beam 4. It includes at least one elongated element 6, 8, attached to the said Central beam 4 and extending essentially parallel to the mentioned Central beam 4. End parts 6A, 6b, 8A, 8b mentioned elongated element 6, 8 extend beyond the ends 4A, 4b referred to the Central beam 4 forward and backward from the chassis 1 and are located so as to deform and absorb energy in the event of a collision. This embodiment of the chassis allows you to provide a simple design that provides the necessary safety features and ease, combined with the latest market requirements. 12 C.p. f-crystals, 3 ill.

The present invention relates to a chassis of the vehicle, in particular of the chassis beam type, demonstrating high performance passive reliability in the event of a collision.

Already known to the chassis of the car, which includes Central steel beam with a very strong profile, which are attached to the elements that support the main blocks and the body of the vehicle. For example, in the publication GB-A-444 handle console mounted on the front end of the Central beam, and block differential gearbox can be mounted similarly on the back end.

However, this type chassis, hereinafter referred to chassis beam type, has many disadvantages, due, in particular, its heavy weight that requires significant power to bring it in motion, and its great rigidity, which prevents the deformation required to settle the energy in the event of a collision. Indeed, no part of the chassis is not designed to absorb the impact energy generated in the event of an accident, so all this energy is transferred to the passengers over the place for passenger vehicles.

In the publication WO 92/17349 describes the vehicle chassis which includes right and left hollow structure, between which passengers are sitting. Front and rear right and left hollow structures are adapted for telescopic movement in the event of a collision. However, this chassis has no Central beams. This replacement of the Central beam two strong and bulky side hollow structures makes access to a Central place for passengers uncomfortable.

These shortcomings subsequently led to the development of a new t the th and at the present time, called monococcum or self-sustaining body and includes a chassis frame, formed from a certain number of items from extruded thin sheet metal, welded together, and the upper part of the structures produced in the same manner and mounted either rigid or elastic manner on the chassis frame.

Although this type of chassis is a good compromise between lightness and fluid, giving him a useful security properties, it nevertheless has a large amount of detail to be collected during numerous welding operations, which, even if they have robots doing the manufacturing cost of the frame-chassis high. That is why constantly conduct research in order to provide people with a simple chassis with elevated security properties.

Thus, the aim of the invention is to overcome the above-mentioned disadvantages of the prototype by providing the vehicle chassis beam type simple design that provides safety features and ease, combined with the latest market requirements.

Consequently, the invention relates to a chassis beam type for a vehicle, comprising cents attached to the said Central beam and running essentially parallel to the mentioned Central beam, and the fact that the end part of the mentioned elongated element goes beyond all referred to the Central beam in front of and behind the said chassis and positioned to deform and absorb energy in the event of a collision.

Because of these characteristics, a portion of the elongated element, going beyond the end of the Central beam of the chassis, can deform and absorb energy in the event of a frontal collision, thereby reducing the amount of energy transmitted to the passengers, supported by the Central beam.

In accordance with a preferred embodiment of the invention, the chassis includes two elongated element extending on both sides referred to the Central beam.

This symmetrical configuration with two elongated members provides, on the one hand, improving the stability of the vehicle and, on the other hand, increasing the safety of passengers in case of collision. In addition, the use of these two parts allows you to reduce the profile of the Central beam and, thus, reducing the weight of the chassis b is red when reading the following description of a specific example of a variant embodiment of the invention, where the above description are provided solely as illustrative, and not limiting example in conjunction with the attached drawings, in which:

Fig. 1 is a perspective view of an example of a suitable variant of the invention implement the chassis beam type.

Fig. 2 and 3 are perspective views from above and from the front is shown in Fig. 1 chassis.

In Fig. 1 shows the corresponding invention chassis, indicated by General reference number 1. The chassis 1 is shown in the example for the equipment of vehicles on electric traction drive on four wheels, and each of these wheels R driven by motor M and, in particular, is designed to support the seat (not shown) of the vehicle.

To facilitate understanding of the invention, the front chassis 2a and the rear suspension 2b such vehicle is shown mounted on the chassis 1. In the present description the front suspension and the rear suspension will be determined as the node elements, which, on the one hand, supports the vehicle, starting with the chassis, and which, on the other hand, obespechivayuschim invention chassis 1 will be described in more detail below.

The chassis 1 is chassis beam type and includes a Central beam 4, the ends of which are fixed respectively front chassis and rear chassis (2A and 2b). The Central beam 4 has the configuration of a hollow beam, which in the described example has a rectangular cross-section, the major axis of which is perpendicular to the plane of the chassis 1, or, in other words, perpendicular to the surface on which it is supposed circulating vehicles, equipped chassis. The Central beam 4 of this size, which can provide, in particular, the stiffness in bending and torsion vehicles relative to the axis of the roll (x-axis in the drawing) and the relative angular oscillation in the longitudinal plane (axis OY in the drawing) vehicles, which is designed for equipment on the chassis. In addition, the Central beam 4 defines the boundaries length theoretically rigid part of the chassis, above which are the passengers.

The chassis 1 includes two elongated element 6 and 8, which are parallel to the Central beam 4 on each side of the latter. Elongated elements 6 and 8 are also made of hollow beams having a circular cross-section.

KGO-section, appropriate alternatives for carrying out the invention.

Each elongated element includes a front end portion 6a, 8a and the rear end portion 6b, 8b, through which they are attached to the Central beam 4 (Fig. 3).

More precisely, each elongated element 6, 8 connected to the Central beam 4 using the front support means 10a and rear support means 10b attached respectively to its front end 4a and the rear end 4b. The support means 10a and 10b are essentially perpendicular to the longitudinal direction of the Central beam 4.

In accordance with an important characteristic corresponding to the invention chassis end parts 6a, 6b and 8a, 8b extend beyond the front and rear end faces 4a and 4b of the Central beam 4 and beyond the support means 10a and 10b. Thus, the end parts 6a, 6b and 8a, 8b elongated elements 6 and 8 define the absorption zone 12a, 12b respectively in front of and behind that are designed for absorption by deformation of elongated elements 6 and 8, especially along the longitudinal direction of the chassis 1, the energy created in the event of a frontal or rear collision with another vehicle or a stationary obstacle to the chassis.

In order to facilitate deformation under the action of compressive forces in the longitudinal direction end parts 6a and 6b, each end of the tubes 6 and 8 includes means for initiating deformation or local weak spots secured, for example, in the form of a number of small parallel inguinal ring (not shown).

In accordance with an alternative embodiment, to further improve the validity of the absorption tubes 6, 8, end parts 6a, 6b and 8a, 8b can be filled is able to compress material such as a suitable synthetic material.

As shown in Fig. 2 and 3, each of the front and rear support means 10a, 10b includes two plates 14a, 16a and 14b, 16b, located essentially in a parallel manner. Plates 14a and 14b respectively attached to front and rear ends 4a and 4b of the Central beam 4, while the plates 16a and 16b respectively attached to the plates 14a and 14b and is separated from the last by using multiple spacers, of which the drawing is clearly visible only spacers 18a and 18b.

Each plate 14a and 14b includes a Central section 20a and 20b, respectively, which runs essentially perpendicular to the longitudinal direction of the chassis and Edna and rear sides of the two intermediate sections 22a and 22b, that continued in the lateral direction with the end sections 24a and 24b extending parallel to the Central section 22a, 20b.

Each of the plates 16a, 16b has the configuration of a flat plate which extends parallel to the Central sections 20a and 20b, respectively, and end sections 24a and 24b, respectively.

In the example shown a variant embodiment of the invention the fastening plates 14a, 14b of the Central beam 4 is carried out by sealing the ends 4a and 4b respectively of the Central beam 4. Therefore, each center section 20a, 20b plates 14a, 14b includes ribs 26a, 26b, which after mounting plates extend and are sealed inside the ends 4a, 4b of the Central tube 4. Fixed ribs 26a, 26b are attached to the girder by means of bolts 28a, 28b, shown schematically on the drawings.

Each plate 16a, 16b are attached to the corresponding plate 14a, 14b by using spacers 18a, 18b bolts 30a, 39b, also shown schematically.

In this example, each elongated element 6, 8 passes through the four holes in the four brackets that are located on one straight line, respectively, near the lateral edges of the plates 14a, 16a and 14b, 16b. In Fig. 2 shows only one obestin 14a, 14b and 16b, which are not marked, are identical. Plate 16a has a slot 36 which extends from its bottom edge 38 and enters the hole 32 so that the portion 40 of the side edges of the plate 16a is formed of an elastic protrusion, which can be pressed against the elongated element, in this case - to the tube 6 by using, for example, the bolt 42.

Needless to say that the construction of the support means 10a, 10b corresponding to the invention of the chassis can be different from the structure which has just been described and which is formed by two parallel plates connected by using struts, bolted, and specialists in the art can easily provide, for example, support means, each of which includes a single plate of a suitable form to accommodate different parts of the front or rear of the chassis, or even supporting means, each of which includes two plates, which may be parallel or non-parallel, made in one piece by casting.

The Central beam 4, the elongated elements 6, 8 and the support means 10a, 10b can be done using any of various known ways, using any of the suitable known materials. When advantage is lnennye elements 6, 8 is produced by extrusion, and the support means 10a, 10b - casting. In the case of these materials it is possible to achieve a favorable compromise between rigidity and lightness of the chassis. Further, it should be noted that the plates 14a, 14b, 16a and 16b include voids to reduce weight.

In the example shown, which correspond to the invention the support means 10a, 10b of the chassis adapted for placement on suspension means 44 and funds absorption 46. The latter are mounted between each pair of front plates 14a, 16a and rear plates 14b, 16b, and the means 44 and 46 formed respectively with two pairs of plates of the front of the chassis 2a and the rear chassis 2b.

As particularly seen in Fig. 2, each of the suspension means 44 has the configuration of the elastic rails 48, called rake Bertin, the ends of which are attached to the wheels R through the brackets knuckle (not shown), and a Central portion which extends between the front plates 14a and 16a and the rear plates 14b and 16b, is supported in the direction of the height of the chassis with backlash by means of two pairs of rods T, attached to the plates.

In the example shown for each wheel R used an independent means of absorption 46, and kinami 14a, 16a and 14b, 16b, respectively, and a second end with the end of the connecting rod 52, articulated at its center between the said plates and the other end of which is attached to the bracket knuckle.

Of course, the support means 10A, 10b corresponding to the invention, the chassis may form a tool that is designed for rigid fastening of the elastic bodies functional vehicle type steering, body, and so on.

It should be noted that the invention chassis 1 is well suited for use in vehicles on electric traction, in which the Central tube 4 can be advantageously used as a means to accommodate batteries of the vehicle, which also contributes to lowering the center of gravity of the vehicle.

In addition, although the relevant invention chassis is particularly suitable for the equipment of vehicles on electricity because of its ease, on this chassis can be beneficial to equip the vehicle with a heat engine and vehicle of mixed type on heat and electric powered. In this case, and if the pair of plates 14a, 16a of the motor, which provides, directly or indirectly, the driving force of the vehicle.

It should be noted that the structure corresponding to the invention chassis enables easy adjustment of the length of the parts 6a, 6b, 8a, 8b elongated parts 6, 8, which extend beyond the ends of the Central beam 4, and, thus, to regulate the ability to absorb energy from the vehicle in case of a front or rear impact standards, which vary from country to country, or to achieve a constant ability to absorb the energy of the chassis, regardless of the weight of the vehicle, for example, in the case when the chassis is equipped vehicle, traction which over time can be converted, for example, with a fully heat form the cravings of mixed type.

It should be noted that in contrast to conventional constructions chassis monohull type of folded welded sheet metal corresponding to the present invention chassis, contains no welding, and is formed by the Assembly with bolted connections symmetrical parts. The use of bolts for Assembly of the various elements of this chassis enables easy dismantling and lets C what it hit.

1. Chassis beam type for a motor vehicle comprising a Central beam 4, characterized in that it is provided with at least one elongated element 6, 8 connected to the Central beam 4 and extending essentially parallel to the Central beam 4, the end parts 6a, 6b, 8a, 8b of the elongated element 6, 8 extend beyond the ends 4a, 4b of the Central beam 4 forward and backward relative to the chassis 1 and is arranged with a possibility of deformation and energy absorption in the event of a collision.

2. Chassis under item 1, characterized in that in the presence of two elongated elements 6, 8 and they are located on both sides of the Central beam 4.

3. Chassis under item 2, characterized in that it is provided at each end of the Central beam 4 supporting tool 10a, 10b, attached to the Central beam 4 and extending essentially perpendicular to the longitudinal direction of the Central beam 4, each of the elongated elements 6, 8 are attached to the support means 10a, 10b, and end parts 6a, 6b, 8a, 8b elongated elements are placed in the support means 10a, 10b and beyond.

4. Chassis under item 3, wherein each of the support means 10a, 10b includes two essentially parallel plates 14a, 16a, 14b, 16b, one of which 1ASS="ptx2">

5. Chassis according to one of the preceding paragraphs, characterized in that the elongated elements 6, 8 are formed of hollow beams.

6. Chassis under item 5, characterized in that the hollow beams have a circular cross-section.

7. Chassis according to one of the preceding paragraphs, characterized in that each of the end parts 6a, 8a, 6b, 8b includes a means of initiating deformation in the longitudinal direction (OX) chassis.

8. The chassis on one of the PP.4 to 7, characterized in that the elongated elements 6, 8 are attached to the plates 14a, 16a, 14b, 16b by using the fastening.

9. The chassis on one of the PP.4 to 8, characterized in that it is provided with two parallel plates attached to the second end of the Central beam, and the first 14a, 14b and the second 16a, 16b pairs of plates 14a, 14b, 16a, 16b are mounted suspension means 44 for the front and rear wheels respectively, and means for energy absorption 46.

10. Chassis under item 9, characterized in that one of the pairs 14a, 16a of the plates forms a frame designed to accommodate communication of motion.

11. Chassis according to any one of the preceding paragraphs, characterized in that the Central beam 4 is made hollow, rectangular cross-section, with most of the WMD from the preceding paragraphs, characterized in that the Central beam 4 has a tool that is designed to accommodate the batteries.

13. Chassis according to any one of the preceding paragraphs, characterized in that it is made of aluminum or aluminum alloy.

 

Same patents:

FIELD: foldable snowmobiles.

SUBSTANCE: invention refers to foldable snowmobiles. In the course of assemblying the subframe shank (1) is inserted into the front part of the back bone frame (11). The engine and controls are installed on the subframe (1). The caterpillar drives (9, 10) with the mounting (26, 45) and the seat (34) with the luggage space (35) are detachably installed on the back bone frame (11).

EFFECT: ensuring of portability.

5 cl, 13 dwg

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