RU2778463C2 - Damping cup with partially separated deepened section - Google Patents

Abstract

FIELD: car industry.

SUBSTANCE: group of inventions relates to cup 1 made by pressing from a metal sheet and forming a concave support for shock-absorbing rack 100, and a motor vehicle with such a cup. The cup contains cone-shaped protrusion 4, bending line 6 forming a boundary between support base 2 of the cup and edges 3, upper surface 7, at least one edge 3, while edge (edges) 3 of the cup forms an essentially cylindrical or conical section around a vertical axis Z, and at least one deepened section 8, 9. Upper surface 7 of the cup, in particular, contains: skirt section 11, and essentially horizontal connecting section 16 connecting skirt section 11 and deepened section 8, 9. Binding line 20 passes through upper surface 7 of the cup, at least partially separating deformation of the skirt section and the cone-shaped protrusion from at least one deepened section 8, 9. Skirt section 11 contains radial bulges 12, 13, 14, 15 passing radially from cone-shaped protrusion 4, and radial bulges 12, 13, 14, 15 are adapted for an increase in the rigidity of skirt section 11 during the deformation.

EFFECT: reduction in weight is provided, while maintaining proper fatigue strength.

9 cl, 8 dwg

Description

SUBSTANCE: invention relates to devices intended for fastening a suspension strut of a motor vehicle suspension. The suspension strut of a motor vehicle wheel typically comprises vertically arranged one or more spring-type elastic return elements and one or more shock-absorbing-type energy-dissipating elements. The strut allows part of the weight of the vehicle body frame to be transferred to the wheels.

To this end, the upper part of the strut rests on a concave section of the body frame, which is generally referred to as the "damping cup". As a rule, the damping cup has a substantially circular geometry with an upwardly oriented cup base, and the cup base has a central hole in which the end of the shock absorber is attached.

The glass allows you to transfer to its peripheral edges, which are connected to various reinforcing elements that form part of the body frame, the load transmitted by the upper end of the rack.

The cup may be attached to the side edge of the vehicle body frame. In addition, the cup can be attached towards the front or rear side of the vehicle along the longitudinal horizontal reinforcing elements and/or horizontal reinforcing elements located across the vehicle.

Edges extending down from the bottom of the cup can be connected to a reinforcement element complementary to the cup in a three-dimensional design to increase structural strength around the center support point of the strut.

Criteria included in the design specification for a damper cup include criteria for static stiffness, static strength, and criteria related to dynamic performance and resistance to periodic deformations, such as deformations, sometimes referred to as “oscillatory” deformations, due to alternate upward movement. and down the body relative to the ground.

It is possible to find a compromise between a cup that is rigid due to its thickness, and a lighter and more flexible cup, the periodic deformations of which create a risk of propagation at the junctions of the cup with the rest of the body frame. Cyclic stresses at connection points create a risk of brittleness of these connection points.

The object of the invention is to provide a damping cup which has adequate fatigue strength and reduced weight.

For this purpose, a glass is proposed, which is made by stamping from a metal sheet and forms a concave support for the suspension strut of a motor vehicle. In the assembled position on the motor vehicle, the cup comprises a support base, preferably substantially horizontal. The glass may include one or more edges, preferably substantially vertical, extending downward from the support base.

The glass mainly contains:

- a cone-shaped protrusion forming an upwardly directed bulge and a downwardly directed cavity, preferably a substantially central cavity in the support base of the cup, while the cavity is made with the possibility of closing the upper end of the spring strut;

- preferably the cone-shaped protrusion forms a support zone, symmetrical and having essentially the symmetry of rotation about the vertical axis; the predominantly tapered protrusion may have an opening allowing it to be attached, preferably by removable means, above the post;

a fold line of the cup defining a boundary between the support base and the rim or rims of the cup, the fold line being curved and surrounding the tapered ledge at a distance from that ledge;

- the upper surface of the cup outside the support base, which extends around the cone-shaped ledge and from it to the fold line of the cup;

- at least one edge of the glass, and the edge or edges of the glass form an essentially cylindrical or conical section around a vertical axis, and preferably the edge or edges of the glass form in the lower direction from the upper surface of the glass sections of essentially vertically joining surfaces of the glass;

- at least one recessed section extending along at least a section of the upper surface of the cup and/or along at least a section of the edge of the cup, while the recessed section in the assembled state on the vehicle is attached by means of an embedded connection to at least one reinforcing frame element vehicle body.

Advantageously, the recessed portion terminates the upper surface of the cup substantially in the first direction of the vehicle, for example in the longitudinal direction of the vehicle.

The recessed portion may advantageously comprise one or more flat portions forming an integral part of the upper surface of the cup. Said flat sections can be designed so that in the installed state they rest on the corresponding planes of the vehicle body frame.

The edge of the cup may be configured to be mounted on a rising cup element, the rising cup element at least partially surrounding the post and extending downward from the edge of the cup.

The upper surface of the glass, in particular, has:

* section of the skirt, expanding downwards around the tapered ledge and having a substantially conical profile, and the predominantly tapered profile has edges, and the edges are connected by kinks in the slope of the cone, and the break lines of the slope form essentially rectilinear stiffeners converging in the direction of the tapered ridge,

* and a substantially horizontal connecting section connecting the skirt section and the recessed section.

Preferably, a kink line extends through the upper surface of the cup, forming a depression due to a kink in the inclination between the surface of the skirt portion and the surface of the connecting portion. The kink line separates the skirt section from the connecting section, so as to at least partially separate the deformation of the skirt section and the taper from the recessed section or sections.

The separation provided is particularly effective with respect to oscillatory deformations of the skirt section, these deformations having the property of flattening the profile of the skirt section or potentially in extreme cases reversing the taper with the skirt section.

The skirt portion may include radial bulges extending radially from the tapered protrusion. The radial bulges can be configured to stiffen the skirt section during deformation. Advantageously, the radial bulges can also be adapted to increase the rigidity of the skirt section in the radial direction.

Preferably, the radial bulges are designed to increase the rigidity of the skirt section, taking into account the tensile-compressive stresses acting on this section along the vertical axis between the cone-shaped ledge and the lower edge of the cup. The radial bulges can be formed to appear convex and recessed on the glass with respect to adjacent surfaces that are defined by the skirt portion.

The radial bulges may be formed by slope breaks, allowing demarcation lines to be defined between substantially flat portions of the upper surface. These substantially flat portions form sloping faces around the tapered protrusion.

According to an embodiment, the facets of the upper surface of the glass form a faceted zone, forming a surface having a bulge upward from the glass. The faceted zone may contain from three to six faces, preferably four or five faces.

On the upper surface of the glass, at least one of the lines of demarcation between the faces, or a continuation of at least one of the lines of demarcation, crosses the recess, being directed downward towards the recess.

Preferably, at least one of the lines of demarcation between the faces, or an extension of at least one line of demarcation, is directed downward on the side of the skirt portion that is opposite to the recess with respect to the taper.

Preferably, the angular dimensions of the facets around the cone-shaped protrusion, when viewed along the vertical axis, differ in relative value by a maximum of 30% from the angular size of the facet with the smallest angle.

According to an embodiment, the radial bulges can converge towards a substantially toroidal tubular section without radial bulges. The toroidal tubular portion may be a portion of a conical protrusion.

The cushioning system may comprise the cup as described above assembled with a rising cup member extending around the skirt section.

The invention also relates to a vehicle comprising a damping system with at least one damping cup as described above.

The vehicle may include a shock absorber equipped with the cup described above. The cup may be assembled at the bottom edge with a rising cup member at least partially surrounding the damper spring.

The cup may be connected at its edge to a rising cup element at least partially surrounding the shock absorber spring and located, when viewed in the vertical direction, on the first side with respect to the kink line. The recessed portion of the cup may be located, when viewed in a vertical direction, on the second side opposite the first side with respect to the kink line, and may be connected to at least one horizontal reinforcing element of the vehicle body frame.

The side section of the cup can be assembled by embedding, for example, welding with at least one horizontal reinforcing element of the vehicle body frame. This assembly can be performed by assembling the first substantially horizontal flat section of the cup with the reinforcing element. In some embodiments, the cup may also be secured to at least one second plane of the vehicle body frame by means of a second flat portion of the cup, the second flat portion adjacent to the first substantially horizontal flat portion and inclined relative to the first flat portion.

The invention will become clearer from the description given below as a non-limiting example with reference to the attached drawings.

In FIG. 1 shows a portion of a motor vehicle body frame comprising a portion of a damping cup according to the invention, in perspective view;

in fig. 2 - damping glass, showing the principle of connecting the glass and the shock absorber strut, sectional view;

in fig. 3a is an example of the geometry of a damping cup according to the invention, perspective view;

in fig. 3b - several highlighted zones, characteristic of the geometry of the damping cup according to the invention according to FIG. 3a;

in fig. 4 - damping cup according to the invention before its installation on a motor vehicle, side view from the first angle;

in fig. 5 - damping cup according to FIG. 4, side view from a different angle;

in fig. 6 - damping cup according to FIG. 4 and 5 assembled with a shock absorber cup reinforcement, perspective view;

in fig. 7 - fracture zones of the inclination of the walls of the glass in the area of the glass, supported by a rising element, perspective view in section;

in fig. 8 - zones of a break in the inclination of the walls of the glass in the region of the glass, located between the support zone of the column and the zone of lateral sealing of the glass, a perspective view in section.

As shown in FIG. 1, a damping cup, indicated by 1, which in this particular case is a front damping cup assembled with a section of the carcass 26 of the body. This portion of the body frame 26 primarily comprises a casing side panel reinforcement (RCA) 18 that forms a transverse reinforcement near the side edge of the vehicle.

With regard to the orientation in the particular case of FIG. 1 and in the following figures, the axial directions of the assembled glass are indicated by the axes corresponding to the axes of the motor vehicle. The X-axis denotes a longitudinal axis oriented in the normal forward direction of the vehicle, oriented from the front side to the rear side of the vehicle. The Y-axis denotes the horizontal transverse axis of the vehicle, and the Z-axis denotes the upwardly oriented vertical axis.

The cup 1 is assembled around the perimeter on the rising cup member 17 so as to form, together with the cup 1, the casing side panel reinforcement and the side portion of the vehicle body frame, a three-dimensional structure capable of transferring loads from the strut to the vehicle body frame. In FIG. 1 clearly shows the longitudinal reinforcing elements of the vehicle, such as the longitudinal beams 21, and sections of the transverse reinforcing elements, namely the front cross member 19.

In FIG. 2 shows a standard construction of a damping cup connected to a post 100. The cup 1, whose base 2 is oriented upwards (in the positive direction of the Z axis), is located at the upper end 104 of the post 100. The post 100 includes, in particular, a spring element 101 and a damping element 102 .

The loads emanating from the wheel (not shown) are transmitted partly by the spring 101, partly by the damping element 102 and through the filter block 105 to the base 2 of the cup 1.

The edges 3 of the glass contribute to the internal rigidity of the glass, giving it a three-dimensional shape. These edges 3 also make it possible to keep the filter block 105 in a centered position.

Fasteners 103, for example, of a removable type, allow the upper end 104 of the post to be fixed to the cup 1, with the post 100 passing through a central hole 5 of the cup 1 formed at its base. The protruding hollow element around the opening 5, sometimes referred to in the description as "tapered protrusion" 4, is shown, for example, in FIG. 3a and 3b.

In FIG. 3a shows in detail the geometry of the damping cup according to the invention. As shown in FIG. 3a, the cup 1 comprises a base 2 oriented upwards, in other words in the positive direction of the z-axis. The base 2 has a substantially conical shape, and through it passes a hole 5 for mounting a post (not shown in Fig. 3a).

Along the perimeter of the opening 5, the base 2 of the cup forms a cone-shaped protrusion 4, which is essentially a toroidal section surrounding the opening 5 and located on top of the conical section of the base 2 of the cup.

According to embodiments, the central hole may be surrounded by a protrusion that is not a toroidal portion, for example, may be surrounded by a protrusion that is cylindrical.

The cup 1 comprises a portion of the top surface 7 of the cup, this top surface comprising, in particular, a conical base 2 surrounding a cone-shaped protrusion 4 and/or a surrounding opening 5. glass, and the fold line forms a closed curve or, in some embodiments, an open curve around the location of the rack (the rack is not shown in Fig. 3a).

A fold line 6 separates the base 2 of the cup from the side edges 3 of the cup, the edges 3 being directed substantially vertically when the cup is in the installed position on the vehicle.

The cup edges 3 may flare and need not have a cylindrical configuration. It is contemplated that at least one portion of the cup edges should be connected to the rising cup member 17, as shown in FIG. one.

As shown in FIG. 3a, on the side of the cup 1, namely in the area of the cup oriented in the positive direction of the Y-axis, the top surface 7 of the cup is extended by one or more recessed sections 8, 9, the recessed sections together forming a zone for embedding the cup. The embedding zone comprises a first, so-called vertical recess 8 and a second, so-called inclined recess 9. The terms "vertical" and "oblique" respectively refer to the direction of the normals to the surfaces of the sleeve used to fasten the joint to be embedded, for example, by welding the surface with reinforcing element.

If only the embedded joints related to the sleeve 1 in sections 8 and 9 were taken into account, it would be possible to consider the sleeve 1 as a beam embedded at its welded end using sections 8, 9, i.e. a beam working in bending under the action of stresses directed along the Z axis and applied, for example, by a stand at a cone-shaped ledge 4.

In the sleeve 1 according to the invention, a zone of great flexibility is located between the conical section or, in other words, the casing, formed around the cone-shaped protrusion 4, and the recessed section or sections 8, 9, reinforced by the embedding itself.

This zone of great flexibility can be limited near each side of the line 20 separation, allowing to make partially independent of the deformation applied around the cone, and the deformation of the recessed area. The separation line 20 takes the form of a break in the slope between the slope of the conical section 7 and the slope of the connecting section 16 connecting this conical section with the recessed sections 8, 9.

The conical portion surrounding the cone 4 may be made more rigid by the presence of radial bulges on the cone extending radially from the opening 5. This conical portion may comprise substantially flat portions forming the edges of the cone between two successive radial bulges.

The recessed portions 8, 9, the conical faceted area around the cone 4 and the separation line 20 are more clearly shown by imaginary lines and imaginary surface contours.

Thus, the conical portion surrounding the tapered protrusion 4 is a group of faces 22, 23, 24, 25, the separations between these faces being formed by changes in the inclination of the radial bulges 12, 13, 14, 15. Preferably, different faces 22, 23, 24, 25 form around the hole 5 corner sections with comparable angular dimensions, respectively designated as α, β, γ, δ.

To determine the magnitude of the break in the slope at the intersection with the kink line 20, for example, it should be taken into account that the connecting section 16, passing on one side of the kink line 20 to the recessed sections 8, 9, and the conical section located opposite this surface on the other side of the line The kinks 20 may form an angle of at least 30° and possibly up to 70° with each other, it being understood that the angle between said surfaces means the angle between the normals to these surfaces.

These various slope changes and the geometry of the intersecting zones between the various characteristic surfaces of the cup are, for example, shown in FIG. 7 and 8.

The upper surface of the cup 1 is preferably rounded along the radius at the fold line 20 . The conical section 2 and the connecting section 16 intersect in a recess, the bottom of which has a radius of 20–100 mm.

The planes 22, 23, 24, 25 of the conical section can advantageously be inclined relative to the horizontal plane, for example at an angle of 25-45°.

As shown in FIG. 3b, the section 11 of the conical skirt is formed by four edges 22, 23, 24, 25, which are essentially flat and separated by connecting zones forming radial bulges 12, 13, 14, 15. Such a faceted shape of the conical skirt makes it possible to further increase its rigidity compared to with a conical geometry of rotation in the case of applying oscillatory loads to the cone-shaped protrusion of the glass.

The radial protuberances 12, 13, 14, 15 are separated by corner sections α, β, γ, δ measured around the Z-axis, the dimensions of the corner sections being comparable. The dimensions of the corner portions differ from each other by less than 30% (measured in % relative to the smallest corner portion) and advantageously differ by less than 20%.

The connecting portion 16 is substantially horizontal and connects the skirt portion 11 to the recessed portions 8, 9. The breaking line 20 of the kink, shown here as a thick dotted line, forms the path of the recess, the concavity of which is turned upwards, the recess being formed by a break in the slope between the skirt portion 11 and the connecting portion. 16.

In FIG. 4 shows the profile of a damping cup according to the invention when viewed in a substantially Y direction across the vehicle when the cup is in the assembled position on the vehicle. In FIG. 4, around the hole 5 intended for the installation of the post, one can see the succession of inclinations, with the help of which the surfaces forming the base of the cup follow each other, from the side of the cup opposite the embedding zone containing sections 8, 9.

The cone-shaped protrusion 4 can form, for example, a substantially toroidal section or, according to other embodiments, even a conical section. The angle of the cone can advantageously be 30 to 60° relative to the vertical axis of the cone, for example close to 45°.

The skirt section 11 includes sections that form edges, including edges 22, 24, 25 seen in FIG. 4. The angles of the normals to these surfaces relative to the Z-vertical are preferably less than 45°, for example, the angles are less than 30° or equal to 30°.

Sleeve 1, when viewed from the negative direction of the Y-axis, is essentially axially symmetrical with respect to the axis of opening 5.

In FIG. 5 shows the glass of FIG. 4 as viewed from the positive direction of the x-axis in the position of the cup assembled on the vehicle. In FIG. 5, there are elements from the previous figures, and the same elements are indicated by the same reference numbers.

Fig. 5 is characterized in that on the left side of the figure there is a substantially tapered skirt portion 11 surrounding the opening 5 and forming a three-dimensional structure portion capable of withstanding the vertical loads of the post (the post is not shown in FIG. 5),

On the right side of Fig. 5 you can see the recessed sections 8 and 9, made so that they are stationary when displaced and rotated relative to the frame of the vehicle body.

The connecting section 16 connects the skirt section 11 with the recesses by sections 8, 9. The kink and separation line 20 forms a cavity or recess by breaking the slope between the skirt section 11 and the connecting section 16. The concavity of the recess is turned upward.

The recess is limited by a kink in the slope, the kink being seen in a vertical radial section in a plane parallel to the YZ plane in FIG. 5. This slope break can be measured using the angle θ. The angle θ in this sectional plane is limited between the direction of the radial line of the skirt section 11 and the direction of the radial line extending along the connecting section 16. The angle θ, for example, can be 100 - 170°.

In FIG. 6 shows a perspective view of the cup according to the invention, partially assembled with the rising cup member 17 before mounting the cup with the recessed portions 8, 9 on the casing side panel reinforcement (RCA), with the casing side panel reinforcement 18 shown, for example, in FIG. one.

In FIG. 6, there are elements from the previous figure, and the same elements are indicated by the same positions. As can be seen in FIG. 6, the three-dimensional construction of the skirt section 11 makes it possible to transfer part of the vertical loads of the strut (the strut is not shown in FIG. 6) to the rising cup element 17.

Under vertical compression, the skirt section 11 is subjected to deformations similar to the deformations of the skin on the drum, which allow to absorb part of the vertical vibrations that occur between the vehicle and the ground. The effect of the kink line 20 is to limit the amplitude of the oscillatory deformations reflected in the assembly zones or in the recessed areas 8 and 9.

The kink line 20 makes it possible to separate the deformations occurring around the cone 4 and the opening 5 from the deformations transmitted through the connecting section 16 to the recessed sections 8 and 9.

Preferably, the skirt section 11 is surrounded by essentially the same essentially horizontal plane:

- along the first section of the contour with a fold line 6, which is located at the point of a break in the slope between the section 11 of the skirt and the edges 3,

- over another portion of the perimeter of the skirt portion 11 by a fold line 20 located essentially in the same plane as the fold line 6.

This configuration allows you to save the local nature of the "oscillatory" deformations applied by the rack at the cone-shaped ledge and section 11 of the skirt.

The faceted configuration of the skirt section 11, for example a configuration having three to six edges, preferably four edges, for example, makes it possible to increase the rigidity in the vertical direction of the skirt section 11 for a given cup steel sheet thickness.

Thanks to the geometry proposed in the invention, the resistance to the functioning of the glass in oscillatory mode is optimized, and the magnitude of the cyclic loads transmitted at the attachment points of the recessed sections is limited.

In the example shown in FIG. 6, the tapered protrusion 4 comprises a toroidal portion 34 located on top of a conical portion 35 containing edges 22, 23, 24, 25 of the skirt portion 11.

In FIG. 7 shows a local perspective view in section of the damping cup according to the invention in a radial plane passing along the vertical axis of the hole 5. For example, it can be seen that the angle formed between the side surface 35 of the cone-shaped protrusion and the edge 24 of the skirt section can advantageously be 140 - 160°. In FIG. 7 this angle is designated as the angle ϕ.

Similarly, in FIG. 8 shows a section of a damping cup according to the invention in a section along a radial plane, passing along the vertical axis of the hole 5. In this case, the sectional plane is located essentially at right angles to the side edge of the body frame to which the cup is attached.

In the section in Fig. 8 passing on a plane substantially parallel to a plane lying in the Y-Z axes, D1 refers to the tangent to the skirt section 11, and D2 refers to the tangent to the connecting section 16. Angle α1 refers to the angle of the tangent D1 with a horizontal direction, for example, the Y direction, and the angle α2 refers to the angle of the tangent D2 with respect to the horizontal direction Y. The angle α1 is preferably 20 to 40° and the angle α2 is preferably 10 to 30°.

The angle θ is predominantly 110 - 150°. It may be noted that although the recessed portion 8 is substantially horizontal, the connecting portion 16 includes at least one sloped portion near the kink line 20 to enhance the effect of the kink line at a kink in the slope.

The invention is not limited to the exemplary embodiments described, and can be extended to many varieties of embodiments. Variations of embodiments may be envisioned in which the skirt portion is conical and free of edges.

A skirt section without edges but having ribs in the radial direction may be provided.

A skirt section having more than four edges may be provided.

However, as an advantage, the distribution of the facets and/or radial ribs in the angular direction around the taper is chosen in such a way as to provide a substantially uniform deformation around the taper, and in such a way that this deformation occurs substantially parallel to the load applied in the vertical direction.

Preferably the same skirt section 11 comprises ribs or demarcation lines between faces provided in some cases at the connecting section 16 and in other cases in the direction of the descending cup edges provided for assembly with the rising cup element.

The cup may have one recessed section extending in one plane of the metal sheet of the cup.

The glass may contain three adjacent recessed areas, each of which is oriented in a slightly different plane.

The glass can be a front damping glass or a rear damping glass.

The design of the cup according to the invention makes it possible to optimize the transfer of forces and displacements between the damping cup and the frame of the vehicle body by limiting the weight of the vehicle and optimizing the fatigue strength of the damping system.

The cup according to the invention makes it possible to optimize the mass-stiffness ratio of the vehicle components.

Claims (17)

1. Glass (1), made by stamping from a metal sheet and forming a concave support for the suspension strut (100) of the vehicle, and in the installed position on the vehicle, the glass contains a support base (2) and one or more edges extending downward from it (3 ); while the glass contains: a cone-shaped protrusion (4), forming an upward bulge and a downward cavity in the support base (2) of the cup, while the specified cavity is made with the possibility of closing the upper end of the spring strut (100), a fold line (6) forming a border between the support base (2) and the edge or edges (3) and surrounding the cone-shaped protrusion (4), an upper surface (7) outside the support base (2) which extends around the cone-shaped protrusion (4) and from it to the fold line (6) of the cup (1), at least one edge (3), wherein the edge or edges (3) of the glass form an essentially cylindrical or conical section around the vertical axis (Z), and the edge (3) of the glass forms downward from the upper surface (7) of the glass passing downward glass edge (1), at least one recessed section (8, 9) extending along at least a portion of the upper surface (7) of the cup and/or along at least a portion of the edge (3) of the cup, while the recessed section (8, 9) is in the assembled state on the vehicle is attached by means of an embedded connection to at least one reinforcing element (18) of the vehicle body frame, while the upper surface (7) of the cup has a skirt section (11) expanding downwards around the cone-shaped protrusion (4) and having an essentially conical profile, and a substantially horizontal connecting section (16) connecting the skirt section (11) and the recessed section (8, 9), characterized in that an inflection line (20) passes through the upper surface (7) of the cup, forming a recess due to a break in the slope between the surface of the skirt section (11) and the surface of the connecting section (16), and the inflection line separates the skirt section (11) from the connecting section (16) so as to at least partially separate the deformation of the skirt section and the cone-shaped protrusion from the specified at least one recessed section (8, 9), while the section (11) of the skirt contains radial bulges (12, 13, 14, 15) extending radially from the cone-shaped protrusion (4), and the radial bulges (12, 13, 14, 15) are adapted to increase the rigidity of the section (11) of the skirt during deformations. 2. The glass (1) according to claim 1, characterized in that the radial bulges are formed by tilt breaks, allowing you to define lines of demarcation between essentially flat sections of the upper surface, while these essentially flat sections form inclined edges around the tapered ledge. 3. Glass (1) according to claim 2, characterized in that the faces (22, 23, 24, 25) of the upper surface (7) form a convex upward faceted zone of the glass, which has from three to six faces (22, 23, 24 , 25). 4. Glass (1) according to claim 3, characterized in that on the upper surface (7) of the glass, at least two of the faces (23, 24, 25) allow you to determine an imaginary demarcation line between the faces, while the demarcation line extends down to side of the section (11) of the skirt so that it moves away from the line (20) of the inflection by moving away from the cone-shaped protrusion (4). 5. Glass (1) according to claim 4, characterized in that on the upper surface (7) at least two of the faces allow you to determine an imaginary second line of demarcation between the faces, while the second line of demarcation or its continuation intersects with the line (20) inflection. 6. Glass (1) according to one of paragraphs. 2-5, characterized in that the angular dimensions of the faces (22, 23, 24, 25) around the conical protrusion, when viewed along the vertical axis, differ in pairs by a maximum of 30% from the angular size of the face with the smallest angle. 7. Glass (1) according to one of paragraphs. 2-6, characterized in that the radial bulges (12, 13, 14, 15) converge in the direction of an essentially toroidal section (34). 8. A motor vehicle containing a shock-absorbing system, and the shock-absorbing system contains at least one front damping cup (1) according to any one of paragraphs. 1-7. 9. Vehicle according to claim. 8, containing a glass (1) according to any one of paragraphs. 1-7, with the cup adjacent with its edge (3) to the rising cup element (17), at least partially surrounding the shock absorber spring (101), and when viewed in the vertical direction, the rising cup element (17) is located on the first side relative to the line (20) of the kink, and the recessed section (8, 9) of the cup is located on the second side, opposite the first side relative to the fold line (20), and the recessed section (8, 9) is connected to at least one horizontal reinforcing element of the vehicle body frame .

Images