KR920004764B1 - Device for connecting a spring to the tie rod in suspension - Google Patents

Abstract

No content.

Description

Connecting device of arm suspension of automobile wheel and coil compression spring

1 is an exemplary view showing a wheel suspension for a vehicle according to the prior art.

2 is a partial cross-sectional view of the arm and coil compression spring connection of a wheel suspension for an automobile according to a first embodiment of the invention, in which an end portion of the spring element wire extends outward in the axial direction.

3 is a cross-sectional view showing a modification of the embodiment of FIG.

4 is a sectional view showing a variation of the embodiment of FIG.

5 shows a cross-sectional view of another embodiment of the device according to the invention with the end of the spring element extending axially outward.

6 is a sectional view showing a variation of the embodiment of FIG.

7 shows a cross-sectional view of a third embodiment of the device according to the invention with the end of the spring element extending on an axial outer axis.

8 is a sectional view showing a variation of the embodiment of FIG.

9 is a sectional view showing an embodiment of the device according to the present invention with a spring support plate.

10 is a cross-sectional view showing another embodiment of the device according to the present invention with a spring support plate.

11 is a sectional view showing a variation of the embodiment of FIG.

12 is a cross-sectional view showing an embodiment in which the ends of the spring element wires are directly supported.

13 is a cross-sectional view showing an embodiment in which the ends of the spring element wires extend outwardly in a claw shape.

14 shows a cross-sectional view of an arm and coil compression spring connection of a wheel suspension for an automobile according to an embodiment of the device according to the invention, in which a spherical socket is installed on a support element and the end of the spring element extends outwardly in the axial direction.

FIG. 15 is a cross-sectional view showing an embodiment of a device in which a spherical socket is installed on a spring support plate. FIG.

16 is a cross-sectional view showing another embodiment of the device according to the present invention with a socket installed on a spring support plate.

* Explanation of symbols for main parts of the drawings

1.11,21,31.41,51,61.71,81: Coil Compression Spring

2,52,62,72.82: cancer

3.13,23,33.43,53.63,62a, 67,82a: bearing

1a, 7,17,27,37,41a, 51c, 63,73a, 83a: support element

E: support surface

The present invention is a device for connecting a coil compression spring to a wheel suspension arm for an automobile.

Coil compression springs For example, wheel suspensions for automobiles are known, in which one end face of a cylindrical spring is supported by a chassis and the other face lies on the arm.

This wheel suspension structure has an important drawback as the shorter the length of the arm, that is, the shorter the distance between the rotation point of the arm and the mounting point of the coil compression spring.

In modern car constructions, the arm tends to be shorter, so the mounting surface of the coil compression spring above the sash and the arm form a large angle.

This increases the aforementioned points.

As will be described later by the drawings, in the known wheel suspension, the end windings of the coil compression springs, particularly the coil compression springs lying on the arm, are subjected to additional bending stresses.

This bending stress shortens the life of the spring and, when appropriately sized, the material weight of the spring increases when the bending stress is reduced.

This additional bending stress increases as the angle between the arm and the mounting face of the spring of the shot saw increases in the compressed and stretched state. In the case of the above-described structure, moreover, the end of the spring lying on the arm is lifted into the arm on the opposite side of the arm rotation point in the spring extension state and the spring is not sufficiently guided into the spring frame of the arm.

In the case of the coil compression spring, since the center of force is generally not at the center but changes at load, the characteristic curve changes under the above state.

As a result, the ratio of the ratio between the spring and the wheel and the suspension state of the wheel additionally change according to the magnitude of the load and the degree of extension.

In the case of the proud device, there is a risk that the surface protection material of the coil compression spring end winding placed on the arm is damaged by the friction of the coil on the arm. As a result, the end of the spring erodes and breaks sooner than scheduled.

This process can be delayed by zinc protection, but not completely restrained.

The object of the present invention is to provide an apparatus of the kind described at the outset which avoids the additional bending stress of the coil compression spring.

The problem is that the support of the coil compression spring against the arm is achieved with the support element sandwiched in accordance with the present invention, and only the angle of the soothing to the repair of the support surface of the arm in the bearing rest fixed to the arm is supported. It is solved by means of connecting so that it can turn freely.

Many preferred embodiments of the invention will be described in detail in the following examples which are shown in the drawings.

The basic idea of the present invention lies in that a component part which is formed as a hinge or which basically bends like a hinge is inserted between the coil compression spring and the arm. This eliminates the inevitable frictional resistance of the hinge and its components and completely avoids the bending of the coil compression springs.

It is possible to increase the torsional load of the spring by avoiding the additional bending stress of the coil compression spring.

This is related to the large savings of material.

In a very preferred embodiment, one or more windings of the coil extend spirally from the ground side to the central axis, the ends of the spring strands bend in the central axial direction and outward from the coil compression spring in the axial direction. Stretched.

Support of the spring relative to the arm next to it may be made directly at the outer end of the spring element wire.

Moreover, it is also possible to arrange | position a bead coupling between a spring element end and an arm.

The coil compression spring itself, in which one end of the spring element extends axially outward at the spring end, is pride.

The specification of US Pat. No. 14,3894 describes the fixing of bumpers relating to the chassis of an automobile, where such springs are used.

But this pride of spring is thus forming for reasons of fixing technology.

This does not apply to the device for connecting the coil compression spring to the suspension arm and, in the case of its proud structure, the problem of the present invention is not set or solved.

The embodiment of the apparatus according to the present invention, in which the end of the spring element wire projects outward in the axial direction from the end of the coil compression spring, solves the problem of the present invention in a very preferred form.

At that time, distortion of the characteristic curve due to the changing force center point is avoided. In other words, the center of force remains unchanged under all loads.

In addition, the coil compression spring does not have an ineffective end winding at the female end.

This has the advantage of greatly saving material and not requiring additional means to prevent damage to the surface protective material.

In such a device, it is possible to provide an end extending outward from the spring in the sash side coil compression spring end of the wheel.

In the case of this embodiment without a spring support plate, a great savings of up to 30% is achieved.

However, it is also possible to construct the apparatus of the present invention using a spring support plate, which also solves the basic problem equally. According to the basic idea of the present invention, the joint disposed between the coil compression spring and the arm is provided with a spherical socket or a connecting member similar thereto that is opened upwardly, and the support element is a spherical socket or connecting member. It is possible to form so as to be supported on. However, in other embodiments, the spherical socket may be hinged to the coil compression spring and the arm so that the spherical socket can be installed on the female side.

In this embodiment, there is another advantage that dust or dust that increases abrasion cannot penetrate into the bearing from above. The embodiments of the device according to the present invention will be described in detail with reference to the accompanying drawings.

First, the problem which forms the basis of the apparatus of this invention by FIG. 1 is demonstrated once again.

1 shows a simplified illustration of a wheel suspension for an automobile in a conventional structure.

The vehicle L is provided with an arm L that can rotate around the rotational axis D. FIG.

A coil compression spring S is provided between the upper surface of the arm L and the lower surface of the sash C, and the spring is firmly connected to the sash C and the arm L.

Moreover, the wheel R is connected to the arm L (illustration of the wheel and arm connecting method is omitted).

The rubber shock absorber P installed on the inner arm L of the coil compression spring S plays a role of supporting a large impact such that the coil compression spring S is locked.

Since the arm L and the sash C are at an angle, a large bending stress is generated in the coil compression spring S.

This bending stress becomes larger as the arm L is shorter and the larger the angle change.

This additional bending stress is avoided by the embodiment of the device according to the invention described below.

2 to 11 show a device for connecting a coil compression spring to a wheel suspension arm for an automobile.

This actually shows only the coil compression spring end connected to the arm.

2 to 4 show preferred embodiments that are extremely simple in structure.

As shown in Fig. 2, the end of the coil compression spring 1 on the arm 2 side extends in a spiral inward to the central axis of the coil compression spring.

The end of the spring element wire 1a is bent at a right angle and extends outward from the coil compression spring 1 along the center axis M in the axial direction.

A support plate 3 is provided in the opening of the arm 2.

This support plate is inserted with the wire end 1b of the spring extending outwards from the coil compression spring 1 so that the flat cross section 1b of this end has an insert made of soft material, for example lead, bronze or resin (4). )

The supporting plate 3 may be formed integrally with the arm 2, for example, by pressing the recessed portion. The end of the coil compression spring 1 on the arm 2 side passes through the shock absorbing element 5 so as to enter from the side of the rubber shock absorbing element 5 and exit in the axial direction.

The stranded portion of the spring bent at right angles is in the cushioning element 5. To this end, the cushioning element 5 is provided with a gap 5a which is dug in the axial direction. Thus, the shock absorbing element 5 can simply be held at the lower spring end. In this case a part of the spring end winding surrounds the cushioning element in shape in the recessed portion 5b of the cushioning element 5.

The shock absorbing element 5 is arranged so as to support a severe impact and not affect the hinged connection of the coil compression spring 1 and the arm 2.

3 is a modified embodiment of FIG.

In this case, the support insert in the support plate 3 consists of steel balls 14.

This steel ball is placed with the element wire end of the spring.

In this case, the center ring is achieved by forming a concave concave recess 1c in the cross section of the small tip end portion of the spring.

Of course, hemispheres can also be used as support inserts and the long, convex surface faces upward.

The rubber ring 6 fitted in the spring element end portion la serves to cushion any contact between the end la of the spring element element and the side wall of the support plate 3.

The embodiment shown in FIG. 4 relates to the connection structure between the coil compression spring 1 and the arm 2. In the embodiment of FIG. 3, the shock absorbing element 5 is provided with an extension in the direction of the arm 2. .

This extension part is supported by the inclined surface 5c of the outer periphery of the support plate 3.

Thereby most of the force acting on the spring is transmitted directly to the arm rather than to the hinged connection.

In the case of this embodiment, moreover, the upper side of the support plate 3 is sealed by the buffer element 5 so that impurities do not enter.

In the embodiment shown in Figs. 2 to 4, the support of the spring elemental end la on the support plate 3 is hinged to which the spring 4 or sphere 14 is fitted and the coil compression spring 1 The end of the arm (2) shaft of () is connected so that only a predetermined angle may be turned with respect to the repair of the support surface E in the support plate 3.

5 and 6 show an embodiment of a hinged connection of the coil compression spring 1 and the arm 2.

In the case of this embodiment, the same parts are given the same reference numerals.

The spring element wire of the coil compression spring 1 extends helically inwardly to the concentric axis line M and is bent at right angles here, and the end of the spring element la extends outwardly from the coil compression spring.

In the case of this embodiment, the spring element end la itself does not act as a support element.

The connection of the coil compression spring 1 and the arm 2 is performed by inserting a bead coupling. Therefore, the spring small tip 1a is fitted into the hole 7a of the steel ball 7.

In this case, you may fix the edge part la in the hole 7a by a bonding means.

A spherical socket 13 is provided in the hole of the arm 2.

This spherical socket is made of steel plate and two spherical base plates 8a and 8b are provided inside.

This spherical base plate can be made of synthetic resin, of which the bottom spherical base plate 8a is fitted into the spherical socket 13.

The upper spherical backing plate 8b is placed on the lower spherical backing plate 8a so that the steel balls 7 can pull the two spherical backing plates 8a and 8b together.

The end la of the spring element wire passes through the upper hole of the upper spherical base plate 8a.

Furthermore, the upper surface of the upper spherical base plate 8b is covered by a protective cap 9 made of synthetic resin.

This protective cap 9 is connected to the spring element end la and pressed by a small conical spring 10 surrounding the end element la of the spring element element la.

Also in this embodiment, the end of the arm 2 shaft of the coil compression spring 1 is pivotally connected to the arm.

In the case of the modification of the fifth embodiment shown in FIG. 6, a rubber shock absorbing element 5 is provided at the lower end of the coil compression spring 1 as already described in FIGS.

The buffer element 5 is supported by the protective cap 9 with its concave lower surface 5a. In other words, in this embodiment, the force acting on the shock absorbing element 5 is supported by the bead coupling.

In the implementation shown in FIGS. 5 and 6, the coil compression spring 1 is provided with a supporting element installed therein, that is, a steel ball 7, two spherical support plates 8a and 8b, a protective cap 9, a small conical shape. There is an additional advantage of being able to be inserted with the spring 10 and in some cases with the shock absorbing element 5, ie as an assembled finished component.

In this case, it is preferable to install the spherical socket 13 on the arm 2.

Furthermore, this spherical socket 13 may be incorporated into the arm in advance.

In the case of the embodiment shown in FIGS. 7 and 8, the connection of the coil compression spring 1 and the arm 2 is made by bead coupling as described above. This coupling is formed somewhat differently from the embodiment of FIGS. 5 and 6.

The end la of the spring element wire axially outwardly extending in the coil compression spring 1 is inserted into the recess 17a of the hemisphere 17 made of synthetic resin by sandwiching a pressure secreting element 15 made of steel sheet. This hemisphere 17 is inserted into a spherical socket 23 provided on the arm 2. The upper surface of the coupling is covered by a rubber sheath 16, for example, through which the small tip la of the spring passes. As shown in FIG. 8, the buffer element 25 can also be provided in this embodiment.

The lower surface 25a of this shock absorbing element is supported by a cover 18 formed slightly differently from the above.

The shock absorbing element 25 is held at the end of the coil compression spring 1 by the axially recessed portion 25a.

As understood in FIGS. 7 and 8, the bottom rim of the covering caps 16 and 18 is bent inward and the rim of the spherical socket 23 mounted in the top and arm holes of the arm 2. It is sandwiched between. Thereby, the coating | coating is sealed-fixed in a favorable state.

This structure has the coil compression spring 1 together with the hemisphere 17 and the spherical socket 23 and also with the coupling enclosed by the sheathing cap 16 or 18 and optionally the rubber buffer 25. With the advantage that it can be used as a finished component and installed directly on the arm (2).

It is preferable in this case that the spring fixes the leading end la in the pressure distribution element 15, for example by gluing.

Next, with reference to Figs. 9 to 11, an embodiment of an apparatus for connecting a coil compression spring and an arm of a vehicle suspension is described. In this case, the end of the coil compression spring on the arm 2 side is seated on the spring support plate.

In the case of the FIG. 9 embodiment, the end of the coil compression spring 11 on the arm 2 side formed in a conical shape is supported by the spring support plate 12. The conical end of the coil compression spring 11 is formed such that the end coils enter each other and are supported by the spring support plate 12 so as to achieve a gradual characteristic curve as the load increases.

A rubber layer 19 is provided between the spring support plate 12 and the end of the coil compression spring 11 to prevent noise.

The conical joint connection of the spring bearing tube 12 and the arm 2 is made by coupling.

On the arm 2 side of the spring support plate l2, a connecting member 20 formed as a cylindrical protrusion is provided.

The connecting member has a flange 20a formed at its end and has an extension 20b connected to the flange, which is inserted into the recess of the hemisphere 27.

A hemisphere 27 made of a resinous resin is inserted into a spherical socket 33, and the spherical socket is provided in a hole of the arm 2.

Of course, even in this embodiment, the spherical socket can be formed integrally with the arm. The coupling of the synthetic resin hemisphere 27 and the spherical cap 33 is passed through the cover cap 26.

In the embodiment shown in FIG. 9, additional bending moments may occur because the elastic coil is located above the rotation point of the coupling.

In order to avoid this, in both embodiments of FIGS. 10 and 11, the rotation point of the coupling is positioned on or above the spring support plate in the plane in which the coil compression spring is placed.

In the case of FIG. 10, the end coil of the coil compression spring 21 is supported by a spring support plate 22 formed of a press part. The central portion 22a of the spring support plate 22 is formed in a concave conical shape to move the point of rotation and enters the inside of the coil compression spring.

The center area 22b is reduced in the shape of a funnel toward the bottom and is formed as a tubular connecting member. The hemisphere 37 is fixed to the lower end of the central region 22b. This hemisphere is inserted into a spherical socket 43a that forms part of the device member 43 connected to an arm (not shown).

The hemisphere 37 can be made of synthetic resin, while the spherical socket 43a is made of steel.

A variant of the embodiment of FIG. 10 is shown in FIG.

In this embodiment, the spring support plate for accommodating the coil of the number of drums of the coil compression spring 31 becomes large compared with the embodiment of FIG. Thus, even in this case, the characteristic coil is gradually obtained by cutting off the end coil.

A rubber layer 29 is provided between the spring support plate 32 and the coil compression spring 31.

The spring support plate 32 has a central portion 32a extending upward and a central portion 32b forming a funnel recess in the downward direction and is formed of a press part.

A hemisphere 37 made of synthetic resin is provided on the central portion 32b extending downward as a connecting portion.

This hemisphere is provided at the center of the socket 43a that forms part of the device member 43.

12 and 13 show two extremely simple embodiments of a device in which a coil compression spring of an automobile wheel suspension is connected to an arm.

In this case the number of additional components required is very small.

In the case of FIG. 12, the element wire of a spring extends inward to the center axis line M of the coil compression spring 41 in the lower end part of the coil compression spring 41 like the previous embodiment.

However, the end portion 41a of the spring element wire does not extend from the coil compression spring to the axial outer axis but acts as a support element.

Therefore, the concave concave indentation portion 41c is formed on the outer circumferential surface of the outermost end immediately.

The end of the spring element wire is placed in a sphere 44 made of a hard material by this recess.

This sphere is inserted as a support insert in the support plate 53 provided on the arm 2.

Even in this embodiment, the coil compression spring 41 can swing freely with respect to the arm 2.

As shown in FIG. 12, the support plate 53 may be integrally formed with the arm 2. As shown in FIG.

In the case of the embodiment shown in FIG. 13, the spring element wire of the lower end of the coil compression spring 51 extends spirally inward. This spring element wire intersects the central axis M of the coil compression spring 51 at the point a.

The spring leading end connected thereto is outside from the end of the coil compression spring 51 in a direction perpendicular to the long axis L of the arm 52 in a plane perpendicular to the support surface E of the arm 52. It extends toward and is bent into hooks.

Thereby, the outermost end portion 51c of the spring element wire is perpendicular to the central axis M of the coil compression spring in parallel with the support surface E and transverse to the long axis L of the arm 52. Is laid out.

In FIG. 13, the arm 52 is shown cut | disconnected in the horizontal direction. The spring element | tip end part 51a functions as a support element.

This end portion 51a is placed on the support plate 63 'formed in the arm 52 by sandwiching the outer circumferential surface of the outermost end portion 51c.

And the center axis M of the coil compression spring 51 passes through the center point m of the outermost direction edge part 51c substantially.

This support plate 63 'can be integrally formed with the arm 52. As shown in FIG.

Since the diameter of the support plate is the same as the diameter d of the outermost end portion 51c of the coil compression spring 51, the end 51c is surrounded by the support plate over about 180 degrees of the entire circumference.

In this embodiment, the turning range of the coil compression spring 51 relative to the arm 52 is somewhat limited.

This is because this turning is possible in a plane extending parallel to the long axis of the arm. However, it satisfies many uses.

In the case of the apparatus shown in FIG. 14, the coil compression spring 61 is provided between the vehicle sash 65 which is not shown in figure, and the suspension arm 62 which shows only a part.

The upper end 61b of this coil compression spring is fixed to the sash 65, and the lower end of the arm 62 side extends inward to the center axis M of the coil compression spring.

The end 61a of the spring element wire is bent at a right angle.

This bent end extends in the axial direction of the coil compression spring 61 and is fitted into the hole 63b of the support element 63 formed of a synthetic resin body.

In fact, in order to improve pressure distribution, a pressure distribution support plate 64 made of steel is provided in the hole 63b of the support element 63.

The end portion 61a of the spring element wire can be fixed by adhesion with the base plate for pressure distribution.

A rounded surface 63a is provided on the lower surface of the support element 63 facing the arm 62.

Within this rounded surface lies a connecting element 62a which has a spherical surface and which is fixedly connected to the arm 62.

In the case of the embodiment of the accompanying drawings, the connecting element is formed by a convex portion which is pressed on the arm 62 and protrudes in a hemispherical shape from the arm surface. Of course, the connecting element may be formed as a separate component and placed on the arm 62 or fixedly connected to the arm.

In the case of the coil compression spring of FIG. 14, the center of force is always on the center axis of the spring and the loyle compression spring does not have a separate coil at the female end.

This saves further materials.

The embodiment of FIG. 14 furthermore has the significant advantage that the pressure per unit area in the bearing is reduced even in the case of a spring in which the end of the spring element wire extends in the axial outer axis.

This reduction in pressure is achieved by making the diameter of the sphere or spherical socket larger than the diameter of the source.

In the case of this embodiment, moreover, as described in FIG. 14, the height of the supporting element 63 can be lowered and the radius of the supporting element 63 can be made smaller than the diameter of the minimum effective winding of the coil compression spring. The advantage is that the height is low.

This eliminates the need for additional space to connect the coil compression springs on the arm.

This is because when the load increases, the winding outside the spring is pulled further down than that to the height of the turning plane E.

Figure 14 shows a device having a coil compression spring of a pair of conical springs with a cylindrical central portion, but of course other arrangements may be used.

Rubber shock absorbers 66 help to support very large impacts that can lock the coil compression springs.

This rubber buffer is placed on the convex portion 65 of the chassis 65 at the upper end of the coil compression spring 61 on the chassis 65 and its edge portion 66a generates a gradual portion of the characteristic curve when the load increases. It acts as an elastic rubber support for the upper end coil 61b of the coil compression spring 61.

In the case of the embodiment of Fig. 14, it is different from the above-described embodiment in which the spring leading end portion extends outward in the axial direction.

As usual, the rubber shock absorber can be fixed at the upper spring support plate.

In fact, the upper surface of the support element 63 forms the preferred support surface of the rubber buffer 66.

The spring element 61a is turned off to the support element 63 and connected to the connecting element 62a in a conical joint connection and the end of the coil compression spring 61 on the arm 62 side is in the water line with respect to the support plane E. It is connected to the arm so that only a predetermined angle with respect to the pivot can be turned.

Of course, the coil compression spring shown in FIG. 14 may be formed of a spring having a linear characteristic curve.

In this case, since the spring support plate is formed to have a small diameter at the upper end of the coil compression spring on the chassis 65 side, the end winding of the spring is not mounted.

The implementation of the apparatus shown in FIGS. 15 and 16 only shows the coil compression spring end connected to the arm.

In both embodiments, the coil compression spring end on the arm side rests on the spring support plate.

For this embodiment the center of force is not always on the spring center axis.

However, the spring bearing plate is angled with respect to the supporting surface E so that the force acts equally and through the center point where the combined force of the acting forces is placed.

In the case of FIG. 15, it is formed in the conical shape, and the end part of the coil compression spring 71 of the arm 72 side is supported by the spring support plate 73. As shown in FIG.

The conical end of the coil compression spring is supported on the spring support plate 73 to create a gradual characteristic curve while the end winding is compressed upon increasing load.

In order to prevent noise, a rubber layer 69 is provided between the spring support plate 73 and the end of the coil compression spring 71.

Conical joint connection of the spring support plate 73 and the arm 72 is made by fitting the coupling.

Therefore, in the region of the center axis line M of the coil compression spring 71, the recessed part 73a is formed in the steel plate spring support plate 71 by press.

The concave surface of the concave portion faces in the direction of the arm 72 to form a spherical socket.

The spherical socket has a synthetic lining 68 inserted therein.

A concave convex portion 72a is provided on the upper surface of the arm 72, and a hinge type component 67 is inserted into the concave concave portion.

The upper part 67a of this part formed in a hemispherical shape lies in the spherical socket 73a.

That is, component 67 is a connecting element.

In the case shown in FIG. 6, the lower end of the coil compression spring 81 formed conical is supported by the small spring support plate 83. As shown in FIG. The center part of the spring support plate 83 is convex upward, and the recessed lower surface forms the spherical socket 83a.

The spherical socket is provided with a synthetic resin lining 78, and a spherical surface of the convex portion 82a is joined to the lining. This convex portion is press-formed on the arm 82 as in the case of the embodiment of FIG.

In the case of both the embodiments of Figs. 15 and 16, the lower end of the coil compression spring 71 or 81 is connected so that only a predetermined angle with respect to the repair line with respect to the support plane E is turned.

In the case of the embodiment of Fig. 16, the characteristic curve of the coil spring is straight.

Of course, even in this embodiment, the radial diameter of the spring support plate 83 or the upward spring support plate so that the windings of the coil compression spring 81 enter each other at the time of load load and also lie on the spring support plate for a gradual characteristic curve. Can be selected. Is a synthetic lining between the sphere and the spherical socket (see 8a in Figs. 5 and 6, 68 in Fig. 15 and 78 in Fig. 16) or is the sphere, hemisphere, or spherical support plate made of synthetic resin (Fig. 7, 8) (See Fig. 27 of Fig. 9, Fig. 37 of Figs. 10, 11, and Fig. 63 of Fig. 14), the surface of the synthetic resin component contacting the spherical support surface or the spherical surface with a recess or hole for accommodating lubricant. It has the advantage of being installed on.

Claims (10)

In a device for connecting a compression coil spring to an arm of a vehicle wheel suspension, the compression springs (1, 11, 21, 31, 41.51, 61, 71) for the arms (2, 52, 62, 72, 82) 81 supports the support elements 1a, 7, 17, 27, 37, 41a, 51c, 63, 73a and 83a, which are supported by the arms 2, 52, 62, 72 and 82. In the fixed excreted bearing support (3, 13, 23, 33, 43, 53, 63 '62a, 67, 82a), only a predetermined angle with respect to the repair of the support surface (E) of the arm can be connected freely. Connecting arm of coil suspension spring and arm of automobile wheel suspension characterized in that there is. The shaft of claim 1, wherein the support elements (63, 73, 83) have spherical sockets (63a, 73a, 83a) on the sides of the arms (62, 72, 82) and are provided on the arms (62, 72, 82). The bearing has bearing elements 62a, 67, 82a rotatably connected to the arm and protrudes the bearing element from the surface of the arm and the spherical surface of the bearing element 63, 73, 83. Connecting the bearing and the coil compression spring of an automobile wheel suspension system, characterized in that the bearing element is positioned on the spherical sockets 63a, 73a, 83a of the support elements 63, 73, 83 by this sphere. Device. The spring element wire of the arm 62 side end part of the coil compression spring 61 extends spirally inward to the center axis line M of the coil compression spring 61, and the edge part 61a of a spring element wire is performed. Of the arm and coil compression spring of an automobile wheel suspension characterized in that it is bent at a right angle and guided axially toward the end of the coil compression spring 61 and fitted into the hole 63 ^b of the support element 63. Connector. 4. The support element (63) according to claim 3, wherein the support element (63) is formed as a resin body, the body rests on a spherical surface (62a) made of steel plate, and the pressure distribution support plate (64) made of steel plate is made of the resin body (63) and the end of the spring element wire. A device for connecting a coil compression spring with an arm of an automobile wheel suspension characterized in that it is provided between 61a. 5. The elastic cushioning element 66 according to any one of claims 2 to 4, which is axially opposed to the support element, is provided at the end of the coil compression spring connected to the chassis 65. Connecting device of arm wheel suspension of automobile with coil compression spring. 6. The arm and coil of a vehicle wheel suspension according to any one of claims 2 to 5, wherein the radius of the support element 63 is smaller than the minimum effective radius of the end of the compression spring 61 on the support element side. Connecting device of the compression spring. 3. The supporting element according to claim 2, wherein the supporting element is formed of the spring support plates (73, 83), and the ends of the coil compression springs (71, 81) on the arm (72, 82) side are placed on the spring support plates, and the spherical sockets (73a, 83a) are provided. A coupling device of a coil compression spring with an arm of an automobile wheel suspension characterized in that it is provided on the bearing element (67, 82a) side of the spring support plate. 8. The wheel suspension according to claim 7, characterized in that the spherical sockets (73a, 83a) are provided with linings (68, 78) made of synthetic resin and the bearing elements (67, 82a) are made of steel sheet. Connecting device of arm and coil compression spring. 9. The bearing element 62a, 82a is formed as a bulging portion press-molded on the arms 62,82 and protruding almost hemispherically from the arm. The connection between the arm of a car wheel suspension and the coil compression spring. 10. The bearing element 67 according to any one of claims 2 to 9, wherein the bearing element 67 is formed as a pin-shaped component insertable into the recess 72a of the arm 72, and the component constitutes a hemispherical wall projecting outwardly. Connecting arm of coil suspension spring and arm of automobile wheel suspension characterized in that there is.

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