KR20050016291A - Articlulated support with integrated balljoint - Google Patents

Abstract

The present invention consists of one long, in particular hollow base pedestal, wherein the base pedestals 1, 11, 21, 31 have at least one portion 1a, 11a, 21a, 31a forming a bearing socket of a ball joint. It relates to a car swing holder having more than two.

Description

Rocking column formed integrally with ball joint {ARTICLULATED SUPPORT WITH INTEGRATED BALLJOINT}

The present invention relates to a swing support according to the features of claim 1, the general concept.

The swing support is used to connect the ballast and pivot bearing or shaft of the automobile in the automobile industry. The swing support is characterized by having high dynamic load capacity and corrosion resistance at the same time. In the field of passenger cars, swing holders are made of metal or plastic today. The rocking column made of plastic is advantageously light in weight. However, in the extruded rocking column, there is a problem of durability requirement for buckling pressure.

The swinging posts are manufactured in various embodiments. In order to ensure the mobility between the structural parts, the swing holders have, for example, one or both ball pins or ball joints. In order for these joints to function properly, individual components such as ball sockets and ball pivots must be machined accurately. In addition, in order to protect a ball joint coated with a lubricant from dirt intrusion and corrosion, for example, a sealing device in the form of a sealed bellows is required.

In the conventionally known swing column, since it consists of too many parts, manufacturing and assembly cost are very high.

1 is a cross-sectional view showing the first embodiment of the rocking column according to the present invention.

FIG. 1A is a cross-sectional view taken along line A-A of FIG.

2 is a cross-sectional view of the second embodiment of the rocking column possible according to the present invention.

3 is a cross-sectional view of a third embodiment of rocking column possible according to the present invention.

3 is a cross-sectional view of the fourth embodiment of the rocking column possible according to the present invention.

An object of the present invention is to provide a rocking column which is simple in structure and made of a small number of parts, and thus easy to assemble.

The problem is solved by the features of claim 1 according to the invention. Advantageous amelioration of the rocking stock is provided by the features of the dependent claims.

The basic concept underlying the present invention is that the swing support has at least one bearing socket for a ball joint and consists essentially of an elongated base pedestal. The bearing socket itself then consists of an outer wall of the base pedestal, which advantageously forms a spherical recess of a suitable size.

In yet another embodiment, a recess for mounting a bearing socket of a ball joint may be formed on the base pedestal. At this time, the bearing socket can be combined with the base pedestal in any way. Advantageously the bearing socket is engaged with the base pedestal using an engagement lock, gluing or welding method.

In this case, the base pedestal may be advantageously manufactured as an injection molded part or an extrusion molded product. The base pedestal part or portion that supports or forms the bearing socket may be formed by reinforcing this portion to impart high strength since it is subjected to a high mechanical load. The reinforcement method can be achieved by, for example, fiber reinforcement or additionally other material components. In some cases, it is likewise possible to additionally form a reinforcing web to increase the strength.

In the case where the base pedestal is essentially tubular, the end portion is made smaller in diameter than the middle portion of the base pedestal, for example by compressing one or both ends of the tube. Likewise, instead of changing the ends by diameter, it is also conceivable to enlarge the middle part of the base pedestal using blow molding instead. This method can also advantageously increase the strength of the base pedestal.

If necessary, the end portion of the base pedestal can be advantageously formed with at least a portion of the bearing socket of the ball joint. When the swing column is assembled by ball joints mounted at both ends, appropriate bearing sockets are formed at both free ends of the base pedestal.

In order to protect the ball joint against dirt intrusion and external mechanical action, a sealing bellows which can be fixedly coupled to the base pedestal or the installed bearing socket can be advantageously installed. The sealing bellows can be held to the base pedestal or bearing socket by tension. However, it is also possible to install additional clamping rings to secure the sealing bellows.

It is also an object of the present invention to install a binding member at the free end of the base pedestal so that a structural member or a joint of a vehicle can be attached to the binding member. Therefore, the binding member may be fixed to the base pedestal using, for example, a locking device. To this end, recesses are formed on the inner wall or the outer wall of the base pedestal, so that the recesses are engaged with the corresponding convex portions, respectively, to form a locking engagement.

Hereinafter, the concept of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view showing an end portion of the swing column consisting of one base pedestal 1 and its free end 1a, the free end 1a being a bearing socket 1b for a joint ball 2 of a ball joint. ). The base pedestal 1 is in particular an elongated component made of a plastic material, which may be embodied in various forms in cross section. The base pedestal illustrated in FIGS. 1 and 1 a is basically hollow and rounded in cross section, wherein at least one end of the base pedestal 1 is formed smaller in diameter than the middle portion. However, the ratio of the diameter can be arbitrarily determined, and thus the size of the diameter can be made equal over the entire length of the swing column. The end walls of the base pedestal 1 are formed at the bearing socket forming portion 1a with one wall as the bearing socket 1b, and the other wall opposite to the inner wall 1g thereof as the bearing socket. It forms so that it may act effectively on the strength and stability of the said base pedestal 1 by pressure-contacting the inner wall 1g of the site | part which forms (1b). The ball pivot formed on the joint ball 2 is not shown in the figure. The base pedestal 1 is tapered towards the site 1a at the diameter reduction site 1k starting from the middle site. The front face (free end of the base pedestal) 1e of the base pedestal 1 may be sealed using a stopper not shown in the drawing, or may be sealed by, for example, pressing with a tool. As can be seen in FIG. 1a, the inner walls 1g of the base pedestal 1 are in contact with each other at the support surface portion 1j of the outer rim or at the cut surface AA region, and thus the internal space 1m This bearing socket 1b is almost completely closed. Since the bearing socket 1b is formed in the shape of a ball socket, the joint ball 2 is interviewed with the outer wall 1f of the base pedestal 1 over a large range.

In order to impart good frictional characteristics, the base pedestal itself consists of the core part K and the component parts forming the skin surface M. As shown in FIG. The base pedestal may be used as well as injection molded parts, parts manufactured by the blow molding method. When plastic is not used, it is also possible to manufacture the base pedestal from metal, in which a lubricating material is injected into the bearing socket forming portion 1b. It is also possible to reinforce the base pedestal 1 made of plastic with an intermediate metal covering layer, for example, in particular using a metal tube completely enclosed in plastic.

2 is a cross-sectional view showing a second embodiment of the rocking column possible according to the present invention. The base pedestal 11 has a circular cross section at least at the intermediate portion 11i. In principle, however, any arbitrary cross-sectional shape can be selected for the base pedestal 11, which of course applies to the other embodiments described and illustrated above. The base pedestal 11 is made of a hollow member, its hollow space (11m) is open toward the free end (11e). In FIG. 2, the fixed member 13 is fixed to the right end of the base pedestal 11 by the catch 13e, wherein the catch or the teeth 13e are hollow space 11m of the base pedestal 11. It is formed in the projection portion 13d inserted into the engaging portion is engaged with the recessed portion or the inner peripheral groove (11h) formed on the inner wall of the free end (11e). The fixed member 13 is a collar-shaped closed outer wall 13f, in particular, in close contact with the front end face 11e of the base pedestal 11. Fixing devices 13a are installed or formed on the fixing member 13 on the opposite side of the protrusion 13d of the closed outer wall 13f, and the fixing devices 13a have holes 13b shaped like window holes (eye holes). The fixing devices 13a are spaced apart from each other to form an intermediate space 13c therebetween, and the structural parts of the vehicle are coupled to the intermediate space 13c. By using the fixed member 13 and its protrusion (fixing device) 13a, swing holders can be fixed to the vehicle body of the vehicle, for example.

The other end of the base pedestal 11 is shaped to form a bearing socket 11b for the joint ball 12. The diameter of the portion 11a forming the bearing socket 11b is smaller than the middle portion 11i of the base pedestal 11. The opening of the portion 11a forming the bearing socket 11b is crimped and sealed using a tool.

FIG. 3 shows a third possible embodiment of rocking holding according to the present invention. In part, only the bearing socket forming portion 21a of the base pedestal 21 is shown with the mounted ball pivot 22 'and the joint ball 22 formed at its end. The base pedestal 21 is tapered from the diameter reducing portion 21k toward the bearing socket forming portion 21a. One wall of the base pedestal 21 is formed with a ball socket amount on its outer surface to form a bearing socket 21b. A recess 21n is formed in the center of the bearing socket 21b to form a grease pocket in which lubricating oil for lubricating the ball joint is stored. Since the bearing socket 21b surrounds the joint ball 22 at an angle slightly smaller than 180 °, the joint ball 22 can be inserted / installed into the bearing socket 21b without difficulty. Another additional sealing member is inserted / inserted into another recess 21o in contact with the recess of the bearing socket 21b over the ball pivot 22 'and the joining ball 22. It is mounted and adhered or welded with the outer wall of the said base pedestal 21, for example. Therefore, the joint ball 22 is held firmly to the base pedestal 21. The end 25a of another additional sealing bellows 25 is bound into the outer circumferential groove formed by the collar 27b of the closing member 27 so that the sealing bellows 25 does not fall out due to its tension. Tightly held One end 25a of the sealing bellows 25 may also be secured to the base pedestal 21 or the closing member 27 by means of a clamping ring, not shown in the figure, as an optional method. The other end 25 of the sealing bellows 25 is wrapped around the ball pivot 22 ′ and pressed against the ball pivot 22 ′ by clamping 26. The walls of the base pedestal 21 are compressed or formed from each other at the bearing socket forming portion such that the inner walls of the base pedestal 21 abut against each other at the support surface portion 21j.

4 is a cross-sectional view showing a fourth possible embodiment of the swing support according to the present invention, in which case the base pedestal itself does not form a bearing socket, but only a pot-shaped recess 31b is formed therein. The bearing socket component 38 is mounted. The bearing socket component 38 can be snapped into the recess 31b, glued into the recess 31b or welded to the base pedestal 31. The bearing socket component 38 can in particular be made of a flexible material. By doing so, the joint ball 32 can be enclosed and gripped by the bearing socket component 38 at least 180 mm. The bearing socket component portion 38 is formed with a collar-shaped annular projection 38c, which forms an annular groove together with the base pedestal 31 to seal the bellows into the annular groove. One free end 35a of 35 is installed or fixed. As an additional stabilizer, a clamping ring 36 'is used to prevent the free end 35a from accidentally falling out of the base pedestal or bearing socket. The other free end 35b of the sealing bellows 35 is in airtight contact with the ball pivot 32 ', whereby the clamping ring 36 generates the necessary pressing force.

The embodiments illustrated in the figures only present a few possible embodiments that utilize the idea of the present invention. In principle, the formation of all kinds of foundation pedestals, the ends of the foundation pedestals and bearing sockets can be considered. Also for example in Fig. 4 the joining / fixing method of the sealing bellows and the bearing socket has been chosen by way of example only. The bearing socket itself can be formed in any shape, the shape of which essentially depends on the mechanical load of the ball joint and the swinging column.

* Description of the symbols for the main parts of the drawings *

Foundation pedestal (1, 11, 21, 31)

Bearing socket forming part of base pedestal (1a, 11a, 21a, 31a)

Bearing socket forming part of bearing base / bearing socket (1b, 11b, 21b, 31b)

Free end (front end) of the base pedestal (1e, 11e, 21e, 31e)

Outer wall of foundation pedestal (1f, 11f, 21f, 31f)

Inner wall of the base pedestal (1g, 11g, 21g, 31g)

Groove or recess of base pedestal (1h, 11h, 21h, 31h)

Middle part of the base pedestal (1i, 11i, 21i, 31i)

Support surface (1j, 11j, 21j, 31j) of the outer rim of the base pedestal

Diameter reduction part of the base pedestal (1k, 11k, 21k, 31k)

Internal space of foundation pedestal (1m, 11m, 21m, 31m)

Lube pockets (1n, 11n, 21n, 31n)

Joint ball (2, 12, 22, 32)

Fixed member (13)

Fixing Device (Protrusion) (13a)

Protrusion 13d

Brace (Tooth) (13e)

Closed exterior wall (color) (13f)

Crimp end (14)

Lumbar (21o)

Ball pivot (22 ', 32')

Sealing bellows (25)

Sealed free end 25a fixed to the bearing 25a

Sealed free end 25b fixed to the ball pivot 25b

Clamping Ring (26)

Closed member (27)

Bearing socket forming part (27a)

Collar (27b)

Pot-shaped recessed part (31b)

Sealing bellows (35)

Sealed bellows free end 35a fixed to the bearing

Sealed free end 35b fixed to the ball pivot 35b

Clamping Rings (36, 36 ')

Bearing Socket Components (38)

Protrusion (38c)

Core part of foundation pedestal (K)

Outer skin surface of foundation base (M)

Claims (18)

In an automobile swing support consisting of a long, hollow base pedestal, the base pedestals 1, 11, 21, 31 have at least one portion 1a, 11a, 21a, 31a forming a bearing socket of a ball joint. The swing support characterized by the above. The method of claim 1, The bearing socket forming portion (31a) is a swing support, characterized in that it has a recess portion (31b) for mounting the bearing socket (38). The method of claim 2, The bearing socket (38) is held in the recess (31b) by a press fit. The method of claim 2, The bearing socket (38) is adhesively fixed in the recess (31), bent at the edges, welded, or fixed by a locking ring and / or a snap coupling device. The method of claim 1, The recess (1b, 11b, 21b) of the portions (1a, 11a, 21a) forming the bearing socket directly form the bearing socket, wherein the recess is concave. In any one of the preceding claims, The bearing socket forming portion (1a) is a swing support, characterized in that the end portion of the base pedestal (1). In any one of the preceding claims, Both ends of the base pedestal (1) is a swing support, characterized in that each formed or installed one ball joint socket. In any one of the preceding claims, The base pedestal (1, 11, 21, 31) rocking support, characterized in that made of injection molded parts, mainly plastic. The method according to any one of claims 1 to 7, The base pedestal rocking support characterized in that it is manufactured by the extrusion hollow method. In any one of the preceding claims, The base pedestal (1, 11, 21, 31) consists of two components, one of which forms the core portion (K), the other is the rocking support characterized in that it forms the outer surface (M) . The method of claim 10, The component forming the core portion (K) is mainly made of a fiber-reinforced material, the outer shell component is a swing support, characterized in that made of a soft material. In any one of the preceding claims, The material of the portion forming the bearing socket in the base pedestal is characterized in that the reinforcing fibers, or reinforcing ribs (reinforcing rib) to form the reinforcement. In any one of the preceding claims, The bearing socket is a swing support characterized in that the joint ball is wrapped around 180 ㅀ or more. In any one of the preceding claims, The projections are formed on the base pedestal at the edge of the concave shape, the projections are characterized in that the projections serve to prevent the indentation of the joint ball is pulled out and / or to fix the sealing bellows. In any one of the preceding claims, A role of locking the fixed member 13 by forming at least one recessed portion 11h, in particular, an annular groove around the inner wall and / or the outer wall 11f, 11g of the free end 11e of the base pedestal 11, is formed. Rocking support characterized in that. The method of claim 15, The fixed member 13 is a swing support, characterized in that serves to fix the swing support to the vehicle structural parts. In any one of the preceding claims, The portion forming the bearing socket of the base pedestal is characterized in that the flattened or thinner than the intermediate portion is formed. In any one of the preceding claims, A rocking column characterized in that one sealing bellows surrounds the ball joint hermetically and is fixed to the base pedestal or bearing socket by a snap-in locking method.