DE202005005829U1 - Pivoting bearing for vehicle pedals comprises spring tongues extending in the axial direction of a bearing body and narrowing a holder - Google Patents

Abstract

Pivoting bearing comprises spring tongues extending in the axial direction of a bearing body and narrowing a holder (4). The axial lengths of the spring tongues are dimensioned so that they terminate on or within spherical sleeve ends of a bearing body spherical cap. Preferred Features: The spring tongues terminate at the height of the front side of the bearing body or within it. The spring tongues are molded to a strip or to protrusions spaced in the peripheral direction.

Description

The The invention relates to a joint bearing with at least one bearing housing and a dome-shaped bearing body which is received by a bearing cup and a recording for a to be stored component, in particular a shaft having, and with a covenant defining the width of the shot or a plurality in the circumferential direction spaced projections load-bearing on the bearing component can be applied, further wherein the bearing body a Has central axis and pivotable in a conical solid angle is.

Generic spherical plain bearings be for used in a variety of applications and have generally proven. For certain applications, however, is a very quiet and very exact storage of the respective component required. this high requirements are not known previously generic pivot bearing always fair. This is especially true if that of the joint bearing mounted component very fast and frequent changes in position learns or with high and jerky ones forces against the bearing body is applied, the changes in position often only in each case a comparatively small change the pivoting angle of the bearing body across from the bearing housing can cause. It is also desirable under these load conditions, the life of the joint bearing to increase.

Of the Invention is therefore based on the object, a gattungsge moderate joint stock to create, which with frequent and / or fast or jerky changes in position of the component to be stored a reduced noise emission and at the same time increased Lifespan has.

These The object is achieved by a spherical plain bearing according to claim 1, at which extending in the axial direction of the bearing body and the recording narrowing spring tongues are provided, the axial length of such is that they are on or within the spherical envelope the bearing body calotte end up. By the invention introduced spring tongues can also be very common or very fast or jerky Location changes of the component to be stored within the respective solid angle, the bearing body always be moved coupled with the stored component. this applies even with only very small changes in position of the stored component. A in conventional generic joint bearings occurring clearance between stored component and bearing body and thus undefined frictional or thrusting Interactions between the stored component and bearing body become in the joint bearing according to the invention thus avoided. It is understood that instead of the federal with one in full on the component adjacent investment or storage area alternatively also a plurality of circumferentially spaced apart ones projections can be provided.

Thereby, that the spring tongues on or within the spherical envelope the bearing body calotte ends, is the bearing body still over whose entire pivoting angle is pivotable relative to the bearing housing, without causing damage the spring tongues or pinching the same between the stored Component and bearing housing to fear is.

has the bearing body different spherical ones Regions of different radii, wherein the bearing body areas with a larger radius axially outboard to bearing body areas can be arranged with a smaller radius, so are the spring tongues preferably not from the spherical envelope of the bearing body portion with the largest radius in front.

The Spherical bearing according to the invention can be used for storage of rotating shafts or for storage axially displaceable in the receiving components such. B. push rods serve. In particular, the joint bearing according to the invention has for storage proven by car pedals.

The Invention thus also includes a joint bearing with in the recording stored component, in particular car pedal, with several or all spring tongues free of play and preferably under prestress to be stored Abut component.

Preferably ends the spring tongues at height the front side of the dome-shaped bearing body or within it. Damage to the spring tongues, too under unfavorable Ambient conditions are thereby largely avoided and the spherical plain bearing can also be used without restricting the installation space, what in tight spaces is of particular advantage.

Advantageously, recesses are provided radially outwardly to the spring tongues in the bearing body, which can accommodate at least partially or completely in the radial direction when the component to be supported on the bearing surface of federal government or the plurality of circumferentially spaced projections at the level of the respective spring tongue , In this way, the spring tongues can avoid play between the receptacle and the component to be supported and ensure a "soft" or elastic mounting of the respective component Position of the mounted component on the collar or the receptacle-defining projections, the spring tongue is elastically deformed in shape, so as to be arranged in the remaining space between the stored component and inner wall of the bearing body can. However, the mounted component is preferably always load-bearing on the bearing surface of the federal government or the recording limiting projections can be applied, so that the bearing body can absorb high forces and have a long service life.

Preferably the recess is in each case as in the circumferential direction completely encircling annular channel executed so that all arranged on one side of the respective center main plane of the bearing body Spring tongues with appropriate force of the stored Component on the respective spring tongues at least partially or preferably Completely can be absorbed by the annular channel. This embodiment is easy to manufacture and further may be in the radially outboard the respective spring tongue accumulating foreign substances through the annular channel be easily removed. It is understood that alternatively, if appropriate even partially circumferential channels can be provided extending in the circumferential direction over extend at least two spring tongues or each formed semicircular could be. A possible separation between the part-circumferential channels is preferably in the 12 o'clock or 6 o'clock position of the respective bearing body in its neutral position provided in installation position.

The respective spring tongues are preferably directly on the collar or the recording for the component to be stored defining plurality of radially spaced projections each the storage area provide, molded and preferably close with the respective radially inner bearing surface flush from.

The Spring tongues can extend in the axial direction of the bearing body.

Preferably is the length the spring tongues in the axial direction less than the axial extent of the Federation or of the recording for the component to be stored defining A plurality of circumferentially spaced projections. The length of the projections can be approximately between about 50% and about 100% of the axial length of the Federal or said projections be.

It is understood that the free ends in the axial direction of the spring tongue may each be provided with a bevel to the introduction of the To be stored component in the recording easier.

Preferably are each the bearing housing and / or the bearing body executed in one piece. bearing housing and / or bearing body can be made of plastic, especially as an injection molded part. Optionally, the bearing housing also executed in several parts be, for example in the form of two half-shells.

The Spherical bearing can be made such that the dome-shaped bearing body the preferably one-piece bearing housing is locked or that a multi-part bearing housing, z. B. is provided in the form of two half-shells. advantageously, become bearing bodies and bearing housing produced in an injection molding process, so that the bearing housing as Form for the production of the dome-shaped bearing body or conversely, the dome-shaped bearing body as a form for the bearing housing in the injection molding manufacturing process.

The Invention will be described below by way of example and with reference to the Figures exemplified. Show it:

1 an end view of a bearing body according to the invention,

2 a sectional view of the bearing body according to 1 along the line AA,

3 a sectional view of the bearing body according to 1 along the line BB.

The joint bearing 1 according to the embodiment has at least one one-piece bearing housing 2 with a dome-shaped bearing body 3 on top of a stock pan 2a is recorded and the one recording 4 for a component to be stored. The recording 4 is here designed as a passage opening, which has a cylindrical shape, but in general can be adapted in its shape to the outer contour of the component to be stored.

The width of the receptacle of the bearing body is characterized by a circumferentially circumferential collar 5 executed, which has a cylindrical inner surface as a bearing surface to which the component to be stored (not shown) can be applied load-bearing, so that the forces can ultimately be transferred to the bearing housing. The bearing body is in this case about a pivot point 6 freely pivotable and about a pivot axis containing the central axis 7 freely rotatable from the bearing housing 2 added. Overall, this can be done by the bearing body 3 recorded component are pivoted in a solid angle.

To provide a "rattle-free" spherical plain bearing, which has a very exact storage and Füh Guaranteed tion of the stored component and allows a very quiet operation are spring tongues 8th provided in the axial direction of the bearing body 3 extend and the recording by means of the radially inwardly projecting line-shaped projections 9 narrow. The diameter of the recording of the height of opposite projections 9 is thus slightly smaller than the diameter of the covenant 5 at the level of said projections. The constriction of the receptacle by the spring tongues may be in the range of 0.2 mm to 1 mm, for example in the range of about 0.5 mm, which may apply regardless of the embodiment. The bearing body can by means of the spring tongues 8th rest without play on the mounted component, preferably some or all of the spring tongues 8th are resiliently biased to provide a "soft" bearing of the respective component, and spring tongues are also within the spherical envelope 3a the Lagerkörperkalotte arranged or close with their free ends 8a at the level of the front side of the bearing body 3 so that a pivoting of the calotte is not hindered and damage to the spring tongues is avoided. The spring tongues are each separated in the circumferential direction by the distance d.

Radially outboard to the spring tongues 8th each recesses are provided so that when the component to be supported on the collar at the level of the respective spring tongue, the spring tongue in the radial direction can be completely absorbed by the recess. The recesses are according to the embodiment as each fully circumferential annular channel 10 formed, which has a constant cross-section over its circumference, but this is not absolutely necessary. The ring channel 10 is frontally open, more specifically, the radially outer and / or inner walls of the annular channel (the latter correspond to the radially outer sides of the spring tongues) are substantially or exactly parallel to the axis 7 of the bearing body. The radial width of the annular channel is in this case a multiple greater than the height in which the projections 9 over the covenant 5 protrude into the receptacle. The radial width of the annular channel may be approximately equal to or greater than the radial thickness of the spring tongues at the level of the federal government or the bearing these areas of the bearing body. By circumferentially encircling annular channel, which is cylindrical here, foreign material entering the recesses for the spring tongues can be easily removed.

After the embodiment is bilateral federal 5 or corresponding spaced projections for supporting the respective component an annular channel 10 intended. Overall, the bearing body is symmetrical to the main center plane 11 educated.

The spring tongues 8th are also formed directly on the collar, more precisely, they are flush with the inward facing bearing surface of the covenant 5 is provided so that when load-bearing system of the respective component to the collar and spring tongues and a continuous contact surface. The spring tongues extend in the axial direction of the bearing body.

The length of the spring tongues 8th in the axial direction is less than the axial extent of the covenant.

The joint bearing according to the invention thus enables a particularly quiet operation of the respective device, it being understood that between the mounted component and the radially inner bearing surface of the federal government 5 a certain game is provided in the manner of a clearance fit.

The Spherical bearing according to the embodiment Can be used in particular for the storage of car pedals.

1

Spherical plain bearings

2

bearing housing

2a

bearing cup

3

bearing body

3a

envelope

4

admission

5

Federation

6

pivot point

7

axis

8th

spring tongue

8a

free The End

9

head Start

10

annular channel

11

Means main level

Claims (10)

Spherical bearing with at least one bearing housing and a dome-shaped bearing body is received by a bearing cup and having a receptacle for a component to be stored, in particular a shaft, wherein the bearing body with a width of the receptacle defining collar or a plurality of circumferentially spaced projections load-bearing on the component to be stored can be applied, wherein further the bearing body has a central axis and is pivotable in a conical solid angle, characterized in that in the axial direction of the bearing body ( 3 ) extending and recording ( 4 ) narrowing spring tongues ( 8th ) are provided whose axial length is dimensioned such that they are on or within the spherical envelopes the ( 3a ) of the bearing body cap. Spherical bearing according to claim 1, characterized in that the spring tongues ( 8th ) at the level of the front side of the dome-shaped bearing body ( 3 ) or within the same. Spherical bearing according to claim 1 or 2, characterized in that radially outwardly to the indicates that radially outward to the spring tongues ( 8th ) in the bearing body recesses ( 10 ) are provided, which when planting the component to be stored on the Federal ( 5 ) or in the circumferential direction spaced projections at the level of the respective spring tongue ( 8th ) preferably completely absorb them in the radial direction. Spherical plain bearing according to claim 3, characterized in that the recess extends in the circumferential direction over at least two spring tongues or as a fully circumferential annular channel ( 10 ) is executed. Spherical bearing according to one of claims 1 to 4, characterized in that in the axial direction on both sides of the federal ( 5 ) or the circumferentially spaced projections spring tongues ( 8th ) are provided. Spherical bearing according to one of claims 1 to 5, characterized in that the spring tongues ( 8th ) are integrally formed on the collar or on the circumferentially spaced projections. Spherical bearing according to one of claims 1 to 6, characterized in that the spring tongues ( 8th ) from the Confederation ( 5 ) or the circumferentially spaced projections extend in the axial direction and preferably flush at the level of the bearing surface of the Federal ( 5 ) or the projections are formed. Spherical bearing according to one of claims 1 to 7, characterized in that the longitudinal extent of the spring tongues ( 8th ) less than the axial extent of the Federal ( 5 ) or the circumferentially spaced projections. Spherical bearing according to one of claims 1 to 8 with a arranged in the receptacle, mounted on the bearing body component, in particular shaft, wherein a plurality or all of the spring tongues ( 8th ) of the bearing body without play and preferably rest under prestress on the mounted component. Spherical bearing according to one of claims 1 to 9 with a in the Recording mounted component which a vehicle pedal or the storage area of a motor vehicle pedal is.