Bearing bush

Abstract

The invention relates to a bearing bush comprising: a tubular piece (3) extending in an axial direction (x) and enclosing an interior (2), which tubular piece has a rear axial tubular-piece end (4) and a front axial tubular-piece end (5) at which the tubular piece (3) is open at the front; one or more axial securing elements (6, 7, 8, 9); and at least one elastically deformable axial compensation element (10) which is fixedly connected to the tubular piece (3) and is provided in the interior (2) thereof, wherein each axial securing element (6, 7, 8, 9) has a resilient tongue (12) which extends rearwardly at a radial distance from an outer peripheral surface (11) of the tubular piece (3) and is elastically deformable radially inwardly in relation to the outer peripheral surface.

Description

[0001] Description

[0002] Bearing bush

[0003] The invention relates to a bearing bush with a pipe section extending in an axial direction and enclosing an interior space, which pipe section has a rear axial pipe section end and a front axial pipe section end at which the pipe section is open at the front, one or more axial securing elements and at least one elastically deformable axial compensating element which is firmly connected to the pipe section and provided in its interior space.

[0004] DE 10 2018 208478 A1 discloses a bearing bush for a pedal device of a motor vehicle with at least one axial securing element for realizing a positive connection with a bearing structure acting in the axial direction of a bearing axis, with at least one axial compensating element for absorbing a tolerance acting in the axial direction of the bearing axis and with at least one radial contact element for compensating a tolerance acting in the radial direction of the bearing axis.

[0005] The aforementioned bearing bush has the disadvantage that a positive connection between the bearing bush and the bearing structure caused by the axial locking element can fail even under load effects that are not uncommon in practice.

[0006] Based on this, the invention is based in particular on the object of developing a bearing bush mentioned at the outset in such a way that a positive connection between the bearing bush and a bearing structure caused by the axial securing element(s) can absorb larger axial loads.

[0007] This object is achieved according to the invention by a bearing bush according to claim 1. Preferred developments of the invention are given in the subclaims and in the following description.

[0008] A bearing bush with a pipe section extending in an axial direction and enclosing an interior space, which has a rear axial pipe section end and a front axial pipe section end at which the pipe section is open at the front, one or more axial securing elements and at least one axial compensating element which is firmly connected to the pipe section and provided in its interior and is elastically deformable, is further developed according to the invention in particular in that each axial securing element has a spring tongue which extends rearward, in particular in the axial direction, at a radial distance from an outer circumferential surface of the pipe section and is elastically deformable radially inwardly relative to this outer circumferential surface.If the bearing bush is inserted into a bearing axle receiving hole provided in a cheek of a bearing structure from an outer side of the cheek with the front axial tube piece end first in an assembly direction that preferably coincides with the axial direction, each spring tongue is initially elastically deformed radially inwards because the inner diameter of the bearing axle receiving hole is smaller than the outer diameter of the bearing bush in the area of ​​the undeformed spring tongue(s). If the bearing bush then moves out of the bearing axle receiving hole with a front tube piece section on an inner side of the cheek, each spring tongue snaps radially outwards due to its spring force. If an attempt is now made to pull the bearing bush out of the bearing axle receiving hole against the assembly direction, this is prevented by the free end of each spring tongue resting axially against the cheek on the inside.Unintentional disassembly of the bearing bush is therefore impossible without causing damage. Therefore, a positive connection between the bearing bush and the bearing structure, created by the axial locking element(s), can absorb larger axial loads.

[0009] The bearing bush and / or the pipe section is preferably assigned a longitudinal axis extending in the axial direction, which axis runs in particular centrally through the bearing bush and / or through the pipe section and / or through its interior. The interior of the pipe section is, for example, cylindrical or substantially cylindrical. The pipe section preferably has an inner circumferential surface, which advantageously delimits the interior and is, in particular, cylindrical or substantially cylindrical. Advantageously, the interior of the pipe section and / or a wall of the pipe section, which in particular delimits the interior, and / or the or an inner circumferential surface of the pipe section, which in particular delimits the interior, is rotationally symmetrical or substantially rotationally symmetrical with respect to the or a longitudinal axis, which preferably extends in the axial direction.

[0010] One or any direction extending transversely to the axial direction and / or transversely to the longitudinal axis is referred to in particular as a radial direction. Preferably, a direction extending around the longitudinal axis is referred to as a circumferential direction. Advantageously, the expression "at least one" also encompasses the meaning of "one" or "exactly one."

[0011] The radial distance is preferably a clear distance. Advantageously, the spring tongue of each axial securing element defines, with the outer circumferential surface of the pipe section, a clearance, preferably in the radial direction, which is open, in particular, toward the rear axial end of the pipe section.

[0012] Preferably, the spring tongue of each axial securing element is provided with a tongue tip, preferably facing the rear axial end of the pipe section. The or a free end of each spring tongue forms, in particular, the or a tongue tip of the respective spring tongue, and / or the or a tongue tip of each spring tongue forms, in particular, the or a free end of the respective spring tongue.

[0013] Preferably, the front axial pipe section end is opposite the rear axial pipe section end, in particular in the axial direction. Preferably, each axial securing element and / or its spring tongue and / or its free end and / or its spring tongue tip is spaced, in particular axially, from the rear axial pipe section end. Advantageously, the axial compensating element is arranged in the interior at an axial distance from the front axial pipe section end.

[0014] The elastically deformable axial compensation element is preferably elastically deformable axially. The elastically deformable axial compensation element is preferably elastically deformable, in particular, in the axial direction and / or in a direction opposite to the axial direction.

[0015] The bearing bush is preferably provided for a pedal device of a vehicle, which is in particular a motor vehicle. Preferably, the axial securing element(s) are provided to realize a positive connection acting in the axial direction with the or a bearing structure. Advantageously, the bearing bush and / or its interior is provided to accommodate a bearing spindle. The bearing spindle can, for example, be rotatably mounted and / or supported in the bearing bush. The bearing bush can also be referred to, for example, as a sliding bush. The axial compensating element is preferably provided to accommodate a tolerance acting in the axial direction, in particular of the or a bearing spindle. The bearing spindle is preferably the bearing spindle of a pedal lever. The or a pedal device advantageously comprises the bearing structure and / or the bearing spindle and / or the pedal lever.

[0016] Preferably, each spring tongue is straight or substantially straight in longitudinal section. Preferably, each spring tongue is inclined relative to the axial direction in longitudinal section. Advantageously, each spring tongue extends outward in longitudinal section with increasing, in particular axial, distance from the front axial pipe section end and / or increasingly away from the outer circumferential surface of the pipe section and / or from the longitudinal axis. In particular, each spring tongue is curved in the circumferential direction.

[0017] According to an advantageous development, the axial securing elements are arranged at a distance from one another, preferably evenly distributed, around the outer circumferential surface of the pipe section. This allows, in particular, the symmetry of the bearing bush to be increased. Advantageously, the number of axial securing elements is two, or at least two, or three, or at least three, or four, or at least four. According to an advantageous embodiment, the spring tongue of each axial securing element has a tongue root firmly connected to the pipe section. The tongue root is preferably provided at or in the region of the front axial end of the pipe section.

[0018] According to an advantageous development, the diameter of the outer circumferential surface of the pipe section is reduced in the area of ​​the spring tongue or tongues. This ensures that the outer diameter of the bearing bush in the area of ​​the one or more spring tongues, in their radially inwardly elastically deformed state, is not larger than the outer diameter of the bearing bush in other areas, such as at the rear axial end of the pipe section. This facilitates the insertion of the bearing bush into the bearing axis receiving hole(s).

[0019] According to an advantageous embodiment, the pipe section comprises at least three axial pipe section sections arranged one behind the other in the axial direction, of which a front axial pipe section section has a smaller outer diameter than a rear axial pipe section section and a middle axial pipe section section arranged between these axial pipe sections has an outer circumferential surface which extends from the outer diameter of the rear axial pipe section section to the outer diameter of the front axial

[0020] Pipe section tapered in the axial direction. The expression "at least three" also includes, in particular, the meaning of "three" or "exactly three." Preferably, the number of axial pipe sections is three.

[0021] The front axial pipe section preferably has a cylindrical or substantially cylindrical outer peripheral surface. The rear axial pipe section preferably has a cylindrical or substantially cylindrical outer peripheral surface. The middle axial pipe section advantageously has a frustoconical or substantially frustoconical outer peripheral surface. In particular, the outer peripheral surface of the middle axial pipe section transitions, preferably continuously and / or seamlessly, into both the outer peripheral surface of the rear axial pipe section and the outer peripheral surface of the front axial pipe section.

[0022] The front axial pipe section preferably comprises the front axial pipe end. The front axial pipe section preferably comprises the axial securing element(s). The tongue root is advantageously provided on the front axial pipe section.

[0023] Preferably, the spring tongue of each axial securing element does not extend in the axial direction over the front axial pipe section or over the front axial pipe section and a part of the middle axial

[0024] Pipe section. Preferably, the spring tongue of each axial securing element has an axial distance from the rear axial pipe section end and / or from the rear axial pipe section.

[0025] The rear axial pipe section preferably comprises the rear axial pipe end. The rear axial pipe section preferably comprises the axial compensating element. Advantageously, the axial compensating element forms a base of the pipe section and / or the rear axial pipe section.

[0026] According to an advantageous development, the axial compensating element has a central element arranged at a radial distance from the or an inner circumferential surface of the pipe section and a plurality of spokes arranged at a distance from one another around the central element, which extend from the inner circumferential surface of the pipe section to the central element and firmly connect the latter to the pipe section. In particular, a free space, preferably a continuous or axially continuous space, is provided between each two adjacent spokes. Preferably, the pipe section and / or the or a wall of the pipe section, in particular delimiting the interior space, and / or the inner circumferential surface of the pipe section, in particular delimiting the interior space, surrounds the central element, preferably at a distance. The central element is advantageously rotationally symmetrical or substantially rotationally symmetrical, in particular with respect to the longitudinal axis.For example, the central element is disc-shaped or bowl-shaped. In particular, the central element is curved axially into the interior. The spokes run, for example, in a radial direction or approximately in a radial direction. In particular, the spokes are elastically deformable in the axial direction. Preferably, the spokes engage tangentially with the central element. This allows, for example, the length of the spokes and thus also the axial spring travel to be increased. Alternatively, the spokes can engage radially with the central element, for example.

[0027] The spokes are preferably straight. Alternatively, the spokes can be designed in a meandering shape, for example. This also allows the spoke length and thus the axial spring travel to be increased. The number of spokes is preferably at least two or at least three.

[0028] Preferably, the central element is arranged in the interior space at an axial distance from the rear axial tube end. Preferably, the spokes, which engage the tube section, particularly at the rear axial tube end, are inclined relative to a plane extending transversely to the axial direction, preferably into the interior space. This also allows the length of the spokes and thus the axial spring travel to be increased.

[0029] According to an advantageous embodiment, one or more, preferably two, in particular radial, guide projections are provided, which are firmly connected to the pipe section and protrude, preferably radially, outwardly from its outer circumferential surface. Thus, the bearing bush can be mounted, for example, in an oriented and / or rotationally secure manner, in particular if the bearing axis receiving hole has a corresponding guide recess for each guide projection. Preferably, each guide projection forms a guide rib, in particular extending in the axial direction. Preferably, each guide projection is provided on the rear axial pipe section and / or on the rear axial pipe section end.

[0030] Preferably, an additional axial securing element or the axial securing element(s) is provided in the axial extension and / or at the axial distance from each guide projection. Each additional axial securing element preferably has a spring tongue extending, in particular in the axial direction, at a radial distance from the outer circumferential surface of the pipe section, advantageously rearwardly, and elastically deformable radially inwardly relative thereto. The spring tongue is preferably provided with a free end, in particular facing the rear axial end of the pipe section, which is also referred to, for example, as a tongue tip. The aforementioned radial distance is in particular a clear distance.

[0031] Preferably, the spring tongue of each additional axial securing element defines, with the outer peripheral surface of the pipe section, a free space, preferably in the radial direction, which is open in particular toward the rear axial pipe section end. Preferably, the front axial pipe section or the middle axial pipe section comprises the additional axial securing element(s).

[0032] The bearing bush and / or the pipe section is preferably made of plastic.

[0033] In particular, the bearing bush and / or the pipe section are made of thermoplastic material, such as polyoxymethylene (POM). The bearing bush is, in particular, an injection-molded part.

[0034] Each axial locking element is preferably made of plastic. In particular, each axial locking element is made of thermoplastic material, such as polyoxymethylene (POM). Preferably, each axial locking element and / or its spring tongue is formed integrally with the pipe section.

[0035] Preferably, each guide projection is made of plastic. In particular, each guide projection is made of thermoplastic material, such as

[0036] Polyoxymethylene (POM). Preferably, each guide projection is formed integrally with the pipe section.

[0037] Any additional axial locking element is preferably made of plastic.

[0038] In particular, each additional axial securing element is made of thermoplastic material, such as polyoxymethylene (POM). Preferably, each additional axial securing element and / or its spring tongue is formed integrally with the tubular piece. The invention further relates in particular to a pedal device with a bearing structure which preferably has at least one cheek in which a, preferably continuous, bearing axle receiving hole is provided, in which a bearing axle of a pedal lever is pivotably mounted about a pedal lever axis, wherein a bearing bush according to the invention is introduced into the bearing axle receiving hole, in the interior of which bearing axle lies so as to be rotatable about the pedal lever axis, wherein the spring tongue of each axial securing element is disengaged from the bearing axle receiving hole on a side of the cheek facing the pedal lever and can be and / or is supported with its free end axially on the cheek.

[0039] The pedal device according to the invention can be further developed according to all embodiments explained in connection with the bearing bush according to the invention. Furthermore, the bearing bush according to the invention can be further developed according to all embodiments explained in connection with the pedal device according to the invention.

[0040] Advantageously, the bearing axle of the pedal lever is pivotably mounted in the bearing axle receiving hole about the pedal lever axle by the bearing axle being rotatably mounted about the pedal lever axle in the interior of the bearing bushing inserted into the bearing axle receiving hole. The bearing axle receiving hole is preferably straight.

[0041] In particular, the bearing axis receiving hole extends in the direction of the pedal lever axis. The bearing axis is preferably straight. In particular, the bearing axis extends in the direction of the pedal lever axis. The pedal lever axis preferably runs in the axial direction. The pedal lever axis preferably coincides with the longitudinal axis.

[0042] The pedal device is preferably provided for and / or in a vehicle, which is in particular a motor vehicle. The pedal lever preferably forms a brake pedal, a clutch pedal, or an accelerator pedal. The sidewall is advantageously a sidewall.

[0043] Preferably, the bearing axis rests with one end face axially against the axial compensating element and / or its central element, preferably under axial tension.

[0044] According to one possible embodiment, the bearing axle receiving hole has a corresponding, preferably radial, guide recess for each guide projection, into which the respective guide projection engages or can engage, particularly when the bearing bush is in the assembled state. This embodiment is particularly useful when the bearing bush has one or more guide projections. The guide projection or the guide projections engaged in the guide recess form or form, in particular, an anti-twist device for the bearing bush in the flange.

[0045] According to a possible further development, the bearing structure has two cheeks, in each of which a preferably continuous bearing axle receiving hole is provided, in which the or a bearing axle of the or a pedal lever is pivotally mounted about the or a pedal lever axis, wherein a bearing bush according to the invention is introduced into each bearing axle receiving hole, in the interior of which the bearing axle is rotatably located about the pedal lever axis, wherein in each bearing bush the spring tongue of each axial securing element on a side of the respective cheek facing the pedal lever is disengaged from the respective bearing axle receiving hole and can be and / or is supported with its free end axially on the respective cheek. Each cheek is advantageously a side cheek.

[0046] The invention is described below using preferred embodiments with reference to the drawing. In the drawing:

[0047] Fig. 1 is a perspective view of a bearing bush according to a first embodiment,

[0048] Fig. 2 is a side view of the bearing bush according to Fig. 1, Fig. 3 is a longitudinal section through the bearing bush according to Fig. 1,

[0049] Fig. 4 is a plan view of a rear end of the bearing bush according to Fig. 1,

[0050] Fig. 5 is a schematic sectional view of the bearing bush according to Fig. 1 in the assembled state,

[0051] Fig. 6 is a perspective view of a bearing bush according to a second embodiment and

[0052] Fig. 7 shows a longitudinal section through the bearing bush according to Fig. 6.

[0053] 1 to 5 show different views of a bearing bush 1 according to a first embodiment, wherein the bearing bush 1 comprises a pipe section 3 extending in an axial direction x and enclosing an interior space 2, which pipe section has a rear axial pipe section end 4 and a front axial pipe section end 5, at which the pipe section 3 is open at the front, a plurality of axial securing elements 6, 7, 8 and 9 and an axial compensating element 10 which is firmly connected to the pipe section 3, provided in its interior space 2 and is axially elastically deformable.The axial securing elements 6, 7, 8 and 9 are arranged at a distance from one another at a uniform distance from one another around an outer peripheral surface 11 of the pipe section 3, wherein each axial securing element has a spring tongue 12 which extends rearward at a radial distance from the outer peripheral surface 11 of the pipe section 3 and is elastically deformable radially inward relative to this outer peripheral surface 11, which is provided in particular with a tongue tip 13 facing the rear axial pipe section end 4. Furthermore, the spring tongue 12 of each axial securing element has, for example, a tongue root 14 firmly connected to the pipe section 3. In particular, the spring tongue 12 of each axial securing element, with the outer peripheral surface 11 of the pipe section 3, delimits in the radial direction a free space 15 which is open towards the rear axial pipe section end 4. In addition, a longitudinal axis L extending in the axial direction x is shown, which runs centrally through the pipe section 3.

[0054] The pipe section 3 has three axial pipe sections 16, 17, and 18 arranged one behind the other in the axial direction x, of which a front axial pipe section 18 has a smaller outer diameter than a rear axial pipe section 16, and a middle axial pipe section 17 arranged between these axial pipe sections 16 and 18 has a frustoconical outer circumferential surface 19 that tapers in the axial direction x from the outer diameter of the rear axial pipe section 16 to the outer diameter of the front axial pipe section 18. The front axial pipe section 18 comprises the axial securing elements 6, 7, 8, and 9.The axial compensating element 10 has a central element 21 arranged at a radial distance from an inner circumferential surface 20 of the pipe section 3 and a plurality of spokes 22 arranged at a distance from one another around the central element 21, which extend from the inner circumferential surface 20 of the pipe section 3 to the central element 21 and firmly connect the latter to the pipe section 3. A free space 23 is provided between each two adjacent spokes 22. The spokes 22 engaging the pipe section 3 at the rear axial end 4 of the pipe section are inclined into the interior space 2 with respect to a plane E running transversely to the axial direction x. The plane E is only indicated schematically in Fig. 3. Furthermore, the spokes 22 engage the central element 21 in particular tangentially.

[0055] When a mechanical load B acts axially on the central element 21, the axial compensation element 10 deforms elastically in the direction of the load B. The direction of the load here runs in particular in the opposite direction of the arrow indicating the axial direction x.

[0056] Fig. 5 shows a schematic sectional view of the bearing bush 1 in the assembled state, wherein a bearing axis receiving hole 27 is provided in a side cheek 24 of a bearing structure 25 of a pedal device 26, in which bearing axis a bearing axis 28 of a pedal lever 29 is pivotally mounted about a pedal lever axis P. The bearing bush 1 is introduced into the bearing axis receiving hole 27, wherein in the interior 2 of the bearing bush 1 the bearing axis 28 lies rotatably about the pedal lever axis P, which here, ie in the assembled state of the bearing bush 1, coincides with the longitudinal axis L of the bearing bush 1. The spring tongue 12 of each axial securing element is disengaged from the bearing axle receiving hole 27 on a side of the side cheek 24 facing the pedal lever 29 and is supported axially with its free end on the side cheek 24, which is formed in particular by the tongue tip 13 of the respective spring tongue 12.

[0057] Figs. 6 and 7 show different views of a bearing bush 1 according to a second embodiment, wherein features identical or similar to the first embodiment are designated by the same reference numerals as in the first embodiment.

[0058] In contrast to the first embodiment, the bearing bush 1 according to the second embodiment has two guide projections 30 which are firmly connected to the tubular piece 3 and project radially outward from its outer circumferential surface 11, each of which forms a guide rib extending in the axial direction x. Furthermore, in the axial extension of each guide projection 30, an additional axial securing element 31 is provided, which has a spring tongue 32 which extends rearward at a radial distance from the outer circumferential surface 11 of the tubular piece 3 and is elastically deformable radially inward relative to the latter. In addition, it is pointed out that a bearing axle receiving hole provided in a side cheek of a bearing structure of a pedal device has, in particular, a corresponding

[0059] Has a guide recess into which the respective guide projection can engage and, in particular, also engages when the bearing bush is in the assembled state.

[0060] Apart from these differences, the bearing bush according to the second embodiment corresponds to the bearing bush according to the first embodiment, so that for a further description of the bearing bush according to the second embodiment, reference is made to the description of the bearing bush according to the first

[0061] embodiment is referred to.

[0062] List of reference symbols

[0063] 1 bearing bush

[0064] 2 Interior of the pipe section

[0065] 3 pipe sections

[0066] 4 rear axial pipe end

[0067] 5 front axial pipe end

[0068] 6 Securing element

[0069] 7 Securing element

[0070] 8 Securing element

[0071] 9 Securing element

[0072] 10 axial compensation element

[0073] 11 Outer peripheral surface of the pipe section

[0074] 12 spring tongue

[0075] 13 Tip of the spring tongue

[0076] 14 Root of the spring tongue

[0077] 15 free space

[0078] 16 rear axial pipe section

[0079] 17 middle axial pipe section

[0080] 18 front axial pipe section

[0081] 19 Outer peripheral surface of the middle axial pipe section

[0082] 20 Inner circumferential surface of the pipe section

[0083] 21 Central element of the axial compensation element 22 Spoke of the axial compensation element

[0084] 23 free space between adjacent spokes of the axial

[0085] Compensating element

[0086] 24 Side wall of the bearing structure

[0087] 25 Bearing structure of the pedal device

[0088] 26 Pedal device

[0089] 27 Bearing axle mounting hole in sidewall

[0090] 28 Pedal lever bearing axis

[0091] 29 Pedal lever of the pedal device

[0092] 30 lead

[0093] 31 additional axial locking element

[0094] 32 Spring tongue of the additional axial locking element

[0095] B mechanical load

[0096] L Longitudinal axis

[0097] P pedal lever axis x axial direction

Claims

Claims 1. Bearing bush with a pipe section (3) extending in an axial direction (x) and enclosing an interior space (2), which pipe section has a rear axial pipe section end (4) and a front axial pipe section end (5) at which the pipe section (3) is open at the end, one or more axial securing elements (6, 7, 8, 9) and at least one elastically deformable axial compensating element (10) which is firmly connected to the pipe section (3), provided in its interior space (2) and is characterized in that each axial securing element (6, 7, 8, 9) has a spring tongue (12) which extends rearward at a radial distance from an outer circumferential surface (11) of the pipe section (3) and is elastically deformable radially inward relative to the latter.

2. Bearing bush according to claim 1, characterized in that the axial securing elements (6, 7, 8, 9) are arranged around the outer circumferential surface (11) of the pipe section (3) at a distance from one another and evenly distributed.

3. Bearing bush according to claim 1 or 2, characterized in that the spring tongue (12) of each axial securing element has a tongue root (14) firmly connected to the pipe section (3) and is provided with a tongue tip (13) facing the rear axial pipe section end (4).

4. Bearing bush according to one of the preceding claims, characterized in that the diameter of the outer peripheral surface (11) of the pipe section (3) is reduced in the region of the spring tongue or spring tongues (12).

5. Bearing bush according to one of the preceding claims, characterized in that the pipe section (3) comprises at least three axial pipe section sections (16, 17, 18) lying one behind the other in the axial direction (x), of which a front axial pipe section section (18) has a smaller outer diameter than a rear axial pipe section section (16) and a middle axial pipe section section (17) arranged between these axial pipe sections (16, 18) has an outer circumferential surface (19) which tapers in the axial direction (x) from the outer diameter of the rear axial pipe section section (16) to the outer diameter of the front axial pipe section section (18).

6. Bearing bush according to claim 5, characterized in that the front axial pipe section (18) comprises the axial securing element(s) (6, 7, 8, 9).

7. Bearing bush according to one of the preceding claims, characterized in that the axial compensating element (10) comprises a central element (21) arranged at a radial distance from the inner circumferential surface (20) of the pipe section (3) and several spaced apart around the central element (21) arranged spokes (22) which extend from the inner peripheral surface (20) of the pipe section (3) to the central element (21) and firmly connect this to the pipe section (3).

8. Bearing bush according to one of the preceding claims, characterized by one or more guide projections (30) which are firmly connected to the pipe section (3) and project radially outwards from its outer circumferential surface (11), each of which forms a guide rib extending in the axial direction (x).

9. Bearing bush according to claim 8, characterized in that in the axial extension of each guide projection (30) an additional axial securing element (31) is provided, which has a spring tongue (32) extending rearwardly at a radial distance from the outer circumferential surface (11) of the pipe section (3) and elastically deformable radially inwardly relative to this.

10. Pedal device with a bearing structure (25) which has at least one cheek (24) in which a bearing axis receiving hole (27) is provided, in which a bearing axis (28) of a pedal lever (29) is pivotally mounted about a pedal lever axis (P), characterized in that a bearing bush (1) according to one of the preceding claims is introduced into the bearing axis receiving hole (27), in the interior (2) of which the Bearing axis (28) is rotatable about the pedal lever axis (P), wherein the spring tongue (12) of each axial securing element is disengaged from the bearing axis receiving hole (27) on a side of the cheek (24) facing the pedal lever (29) and can be or is supported axially on the cheek (24) with its free end.

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