Brake Caliper for Disk Brake

Abstract

The brake caliper (1) for disc brakes is a caliper body (2) adapted to straddle a brake disc (3) and apply braking force to a vehicle; The brake disc (3) defines an axial direction (AA) oriented along or parallel to the axis of rotation (XX) of the brake disc (3), a radial direction (RR) perpendicular to the axial direction (AA), a circumferential direction (CC) perpendicular to the axial direction (AA) and the radial direction (RR), and a tangential direction (TT) locally perpendicular to the axial direction (AA) and the radial direction (RR) and tangent to the circumferential direction (CC), the caliper body (2) comprises at least one thrust device housing (4) containing a thrust device (5) configured to bias at least one brake pad (6) to bring the at least one brake pad (6) into abutment against a braking surface (7, 8) of the brake disc (3); The thrust device (5) is operably connected to a translating screw nut (9) and to a worm (10); The translating screw nut (9) is operably connected to the worm (10); The worm (10) is operatively connected to a gearbox (11); the worm (10) is rotatably supported by a screw thrust bearing (12) configured to support the worm (10) in a rotatable manner and to apply an axial reaction force to the worm (10), i.e., a direct reaction force primarily along the axial direction; At least a portion of the pressure gearbox (11) arranged near the worm (10) and operably connected to the worm (10) is rotatably supported by at least one gearbox thrust bearing (12) configured to rotatably support the at least a portion of the reduction gear (11) and to apply a radial reaction force, i.e., a direct reaction force mainly along the radial direction (RR), to the at least a portion of the reduction gear (11); The thrust bearing (12) includes at least one radially inner slewing ring (14, 15); The gearbox (11) includes a planetary gear mechanism (20), The planetary gear mechanism (20) includes a fixed gear or internally toothed body (17) cooperating with at least one planetary gear (18); the at least one planet gear (18) is rotatably supported about at least one planet gear pin (21); The at least one planetary gear pin (21) is operably connected to at least one radially inner slewing ring (15) so as to transmit the action of the gearbox (11) to the worm (10) by the at least one radially inner slewing ring (15).

Description

Technical Field

[0001] The present invention relates to a disk brake caliper and a disk brake including the caliper.

[0002] Hereinafter, the disk brake caliper and the disk brake assembly will be described with reference to the rotation axis of the disk itself indicated by the symbol X-X defining the axial direction. The axial direction means any direction A-A directed parallel to the rotation axis of the brake disk. Further, the radial direction means any direction orthogonal to the rotation axis X-X and incident thereon. Also, the circumferential direction C-C means a circumference orthogonal to the axial direction and the radial direction.

[0003] In other cases, the tangential direction T-T means a direction that is temporally orthogonal to the axial direction A-A and the radial direction R-R.

Background Art

[0004] In vehicles, particularly disk brakes, the brake caliper is arranged across the outer peripheral edge of the brake disk. The brake caliper typically includes a body having two elongated elements called side portions, which are arranged to face the brake surfaces on opposite sides of the disk. There are friction pads between each side portion of the caliper and the brake surface of the brake disk. At least one of the side portions of the caliper has a cylinder configured to accommodate a piston. The piston operates by any suitable known method (e.g., hydraulic or electromechanical piston), applies a thrust action to the pads, and brings them into contact with the brake surface of the disk to apply a braking action to the vehicle.

[0005] The brake caliper is typically constrained to a support structure fixed to the vehicle, such as a spindle of a vehicle suspension.

[0006] In a typical configuration, one of the two side portions has an attachment portion of the caliper body to the support structure (e.g., providing an axially arranged groove or hole, or a radially arranged through hole, for example), and is configured to receive a screw for fixing the caliper accommodated in a threaded hole provided in a caliper support having both ends.

[0007] Such a side portion is called an attachment side portion or an elongated vehicle side element.

[0008] The other portion is called a non-attachment side portion or an elongated wheel side element.

[0009] In a typical caliper body structure, the sides facing the brake surfaces of the disc are connected to each other by an element such as a bridge arranged across the disc, called a bridge.

[0010] As described above, in a disc brake caliper, due to the action of at least one piston, both pads are pressed against both brake surfaces of the brake band by the associated brake disc.

[0011] This piston is usually accommodated in a cylinder of the caliper body and is actuated by brake fluid pressurized by a brake pump (usually an automobile pedal and a motorcycle lever).

[0012] For example, a brake caliper is also known in which one or more pistons are electromechanically actuated by the rotation of a worm accommodated in the piston body and rotated by an electric motor or more generally a servo motor.

[0013] Such a solution is known from US6607059B1 to SKF Engineering and Research Center B.V. As one embodiment, this document discloses a servo motor connected to a recirculating ball screw disposed inside a piston body. The screw is rotationally supported by a first thrust bearing disposed therein, and a transmission shaft connects it to a planetary gear disk of a planetary gear mechanism disposed on an electric motor. This planetary gear mechanism is supported by a second thrust bearing at the end of a drive shaft on the opposite side of the piston.

[0014] Therefore, this solution is very cumbersome, especially because of its long axial direction.

[0015] A solution to this problem is disclosed in U.S. Patent No. 7,021,415 to Stoneridge Control Devices, Inc. and WO2015 / 151052 to Brembo Brakes S.p.A. These documents disclose an electric brake system and an actuator. The actuator includes a motor with a motor shaft and a gear train coupled to the motor shaft, and the gears have at least one mechanical output from the actuator. The gear train includes a gear coupled to a drive shaft, a driven gear coupled to a driven gear, and a planetary gear set coupled to a driven wheel. These documents describe a configuration for arranging the gear train as widely as possible in the circumferential direction to reduce the axial area of the assembly.

[0016] Other such solutions are known from U.S. Patent 8,051,957, WO2011 / 076299A1, WO2015 / 151052A1, WO2016 / 005867A2, US2005 / 03496A1, and U.S. Patent Application Publication No. 2008 / 271553.

[0017] However, in all of these solutions, mainly the piston and the worm nut screw assembly and the gearbox are arranged side by side, so the axial volume of the caliper cannot be reduced.

[0018] Therefore, there is still a strong need for a caliper of a type having a small axial dimension and equipped with a thrust device that operates via a screw nut screw.

[0019] This need is strongly felt even in motorcycles, where the axial dimension of the caliper is a major constraint on the desired reduced width of the vehicle itself, particularly its maneuverability.

Summary of the Invention

[0020] These and other objects are achieved by the caliper according to claim 1 and the brake according to claim 10.

[0021] Some advantageous embodiments are the subject of the dependent claims.

[0022] In this solution, by integrating components, the axial dimension of the caliper can be significantly reduced.

[0023] Thanks to the proposed solution, the components of the reduction gear or gearbox are at least partially interpenetrated with the components of the thrust device, and in particular axially, the size of the assembly can be significantly reduced.

[0024] Tests carried out on the solution have revealed that the achieved reduction in axial dimension was not obtained in any of the previously known solutions.

[0025] On the contrary, due to the sophisticated desire to separate the components of the thrust device from the components of the gearbox or motor gearbox in order to propose parts that can be easily and simply separated from the caliper body, which is expressed by these known solutions, the known solutions propose increasingly cumbersome assemblies axially.

[0026] In particular, a design of a worm and a gearbox support is illustrated for eliminating a motion transmission component from the gearbox to the worm by directly using a worm support bearing to transmit motion from the gearbox to the worm.

[0027] Furthermore, thanks to the proposed solution, it is possible to reduce the number of components forming the caliper. In particular, in this proposed solution, the support bearing of the worm also incorporates the function of the support bearing of the gearbox or the proximal part of the gearbox, and the number of parts enabling the attachment of the gearbox support bearing can be further reduced.

[0028] These solutions can also significantly simplify the assembly procedure of the caliper.

[0029] Further features and advantages of the present invention will become apparent from the following description of its preferred embodiments, given by way of non-limiting example, with reference to the accompanying drawings.

Brief Description of the Drawings

[0030] FIG. 1 shows a circumferential view of a brake caliper according to the present invention.

[0031] FIG. 2 shows a cross-section of the radial axial plane of the caliper of FIG. 1.

[0032] FIG. 3 shows an enlarged detail of the cross-section of FIG. 2, where the support bearing of the worm and the end of the gearbox are highlighted.

[0033] FIG. 4 shows a cross-sectional view of the caliper of FIG. 1 along line IV-IV of FIG. 1.

[0034] FIG. 5 is an enlarged view of the detail of FIG. 4, where the support bearing of the worm and the end of the gearbox are highlighted. Description of Embodiments of the Invention

[0035] According to a general embodiment, the brake caliper of the disc brake 1 includes a caliper body 2 configured to be arranged across the brake disc 3 to apply a braking action to the vehicle.

[0036] The brake disc 3 defines an axial direction A-A directed along or parallel to the rotation axis X-X of the brake disc 3, a radial direction R-R orthogonal to the axial direction A-A, a circumferential direction C-C orthogonal to the axial direction A-A and the radial direction R-R, and a tangential direction T-T locally orthogonal to the axial direction A-A and the radial direction R-R and tangent to the circumferential direction.

[0037] The caliper body 2 includes at least one thrust device housing 4 that houses a thrust device 5 configured to bias at least one brake pad 6 to bring the at least one brake pad 6 into contact with the brake surfaces 7, 8 of the brake disc.

[0038] The thrust device 5 is operably connected to a translation nut 9 and operably connected to a worm 10. The translation nut 9 is operably connected to the worm 10. The worm 10 is operably connected to a reducer or gearbox 11.

[0039] The worm 10 is rotatably supported by a screw thrust bearing 12 configured to support the worm 10 in a rotatable manner and apply an axial reaction force, that is, a direct reaction force mainly along the axial direction A-A, by the worm 10.

[0040] At least a part of the pressure gearbox 11 arranged near and operably connected to the worm 10 rotatably supports at least one part of the reduction gear 11 and is rotatably supported by at least one gear thrust bearing 12 configured to apply a radial reaction force (mainly a direct reaction force along the radial direction R-R) to at least a part of the reduction gear 11.

[0041] Advantageously, the screw thrust bearing and the gearbox thrust bearing are the same thrust bearing 12.

[0042] For example, by providing a single thrust bearing 12 for performing the functions of both the worm support bearing and the gearbox support bearing, the structure of this assembly is simplified and the need to reduce its axial dimension is solved.

[0043] According to a more general embodiment, the brake caliper of the disc brake 1 comprises a caliper body 2 configured to be arranged across the brake disc 3 to apply a braking action to the vehicle.

[0044] The brake disc 3 defines an axial direction A-A along or parallel to the rotation axis X-X of the brake disc 3, a radial direction R-R orthogonal to the axial direction A-A, a circumferential direction C-C orthogonal to the axial direction A-A and the radial direction R-R, and a tangential direction T-T locally orthogonal to the axial direction A-A and the radial direction R-R and tangential to the circumferential direction.

[0045] The caliper body 2 comprises at least one thrust device housing 4 for housing a thrust device 5 configured to bias at least one brake pad 6 to bring the at least one brake pad 6 into contact with the brake surfaces 7, 8 of the brake disc.

[0046] The thrust device 5 is operably connected to a translation screw nut 9 and operably connected to a worm 10. The translation screw nut 9 is operably connected to the worm 10. The worm 10 is operably connected to a gearbox 11.

[0047] The worm 10 is rotatably supported by a screw thrust bearing 12 configured to support the worm 10 in a rotatable manner and apply an axial reaction force (i.e., mainly a direct reaction along the axial direction A-A) by the worm 10.

[0048] It is arranged near the worm 10 and at least a part of the pressure gear box 11 operably connected thereto rotatably supports at least one part of the reduction gear 11 and is rotatably supported by at least one gear box thrust bearing 12 configured to apply a radial reaction force (mainly a direct reaction force along the radial direction R-R) to at least a part of the reduction gear 11.

[0049] The thrust bearing 12 includes at least one inner bearing ring or radially inner swivel ring 14, 15.

[0050] The gear box 11 includes a planetary gear mechanism 20.

[0051] The planetary gear 20 includes a fixed gear or a body with internal teeth 17 that cooperates with at least one planetary gear 18, and at least one planetary gear 18 is rotatably supported around at least one planetary gear pin 21.

[0052] At least one planetary gear pin 21 is operably connected to at least one radially inner swivel ring 15, and the action of the gear box 11 is transmitted to the worm 10 by at least one radially inner swivel ring 15.

[0053] According to an embodiment, the worm 10 is rotatably supported only by the thrust bearing 12.

[0054] According to an embodiment, the thrust bearing 12 is an inclined type bearing configured to support both a load directed along the axial direction A-A and a load directed along the radial direction R-R.

[0055] According to an embodiment, the worm 10 is a recirculating ball worm.

[0056] According to an embodiment, the thrust bearing 12 includes at least one radially inner swivel ring 14, 15.

[0057] According to an embodiment, the gearbox 11 includes at least one planetary gear mechanism 20.

[0058] The planetary gear 20 includes a fixed gear or an internally toothed body 17 that cooperates with at least one planetary gear 18, and at least one planetary gear 18 is rotatably supported around at least one planetary gear pin 21.

[0059] At least one planetary gear pin 21 is operably connected to at least one radially inner swivel ring 15.

[0060] According to an embodiment, at least one radially inner swivel ring 15 includes at least one pin housing 23, and at least one pin housing 23 receives at least one planetary gear pin 21.

[0061] According to an embodiment, at least one radially inner swivel ring 14, 15 is connected to the worm 10.

[0062] According to an embodiment, the worm 10 includes a threaded shank 22. At least one radially inner swivel ring 14, 15 is connected to the threaded shank 22, and the function of the gearbox 11 is transmitted to the worm 10 by at least one radially inner swivel ring 14, 15.

[0063] According to an embodiment, the worm 10 includes a threaded shank 22. At least one radially inner swivel ring 14, 15 is keyed to the threaded shank 22, and the function of the gearbox 11 is transmitted to the worm 10 via at least one radially inner swivel ring 14, 15.

[0064] According to an embodiment, the gearbox 11 includes at least one planetary gear mechanism 20.

[0065] The planetary gear 20 includes a fixed gear or an internally toothed body 17 that cooperates with at least one planetary gear 18, and the at least one planetary gear 18 is rotatably supported around at least one planetary gear pin 21.

[0066] The at least one planetary gear pin 21 is supported by a planetary carrier disk.

[0067] The at least one radially inner swivel ring 15 helps to be integral with the planetary carrier disk.

[0068] According to an embodiment, the thrust bearing 12 includes at least one outer bearing ring or a radially outer swivel ring 13.

[0069] According to an embodiment, the radially outer swivel ring 13 is connected to a first outer swivel ring housing 16 that is at least partially provided in the caliper body 2.

[0070] According to an embodiment, the gearbox 11 includes a fixed gear or an internally toothed body 17 that cooperates with a rotating gear or a planetary gear 18. The fixed gear or the internally toothed body 17 is connected to the caliper body 2. The radially outer swivel ring 13 is connected to a second outer swivel ring housing 19 that is at least partially provided in the fixed gear or the internally toothed body 17.

[0071] According to an embodiment, the thrust bearing 12 includes at least one radially inner swivel ring 14, 15.

[0072] The at least one radially inner swivel ring 14, 15 is integral with the worm 10.

[0073] According to an embodiment, the worm 10 includes a threaded shank 22. The at least one radially inner swivel ring 14, 15 is integral with the threaded shank 22, and the action of the gearbox 11 is transmitted to the worm 10 through the at least one radially inner swivel ring 14, 15.

[0074] According to an embodiment, at least one radially inner turning ring 14, 15, the first inner turning ring 14 and the second inner turning ring 15 are arranged side by side with each other.

[0075] According to an embodiment, the second inner turning ring 15 is operably connected to the gearbox 11.

[0076] According to an embodiment, the gearbox 11 includes at least one planetary gear mechanism 20.

[0077] The second inner turning ring 15 includes at least one pin housing 23, and the at least one pin housing 23 receives at least one planetary gear pin 21 that rotatably supports at least one planetary gear 18 of the planetary gear 20.

[0078] According to an embodiment, the gearbox 11 is part of a servo motor 24 that includes an electric motor 25 operably connected to the gearbox 11.

[0079] According to an embodiment, the brake caliper 1 is an electrically actuated caliper.

[0080] According to an embodiment, the thrust device housing 4 has an insertion opening 26, the insertion opening 26 opens towards the gearbox 11, and enables the insertion of the thrust device 5 and / or the translation screw nut 9 and the worm 10 into the pin device housing 4.

[0081] According to an embodiment, the thrust device 5 includes an internal thrust device chamber 28.

[0082] The internal thrust device chamber 28 houses the translation screw 9 and the worm 10.

[0083] According to an embodiment, the support ring 29 is interposed between the thrust device 5 and the translation screw 9. The translation screw nut 9 is placed on the stationary ring 29 so as to include the clearances of the thrust device 5 and the translation screw nut 9.

[0084] According to an embodiment, the translation screw nut 9 includes at least one snap coupling device 30.

[0085] According to an embodiment, the snap coupling device 30 snap-connects the translation nut screw 9 to the thrust device 5.

[0086] According to an embodiment, the worm 10 includes a screw thrust head 27 configured to cooperate directly or indirectly with the thrust device 5.

[0087] According to an embodiment, the limit stop disk 31 is provided intervening between the thrust device 5 and the screw thrust head 27.

[0088] According to an embodiment, the limit stop disk 31 is formed as a spherical cap 32.

[0089] The present invention further relates to a disk brake 33 related to a brake disk 3, including a caliper according to any one of the above embodiments.

[0090] Those skilled in the art can make many changes and adaptations to the above embodiments, or replace them with other elements that are functionally equivalent to meet accidental needs without departing from the scope of the appended claims.

[0091] According to an embodiment, the thrust device 5 includes a holding device 34 that can prevent the rotation of the thrust device 5 within the thrust device housing 4.

[0092] According to an embodiment, the brake caliper 1 includes a caliper body 2 adapted to span the disk 3, and the caliper body 2

[0093] a first elongated portion 105 adapted to face a first braking surface 106 of the brake disk 3, and

[0094] a second elongated portion 107 located on the opposite side of the first elongated portion 105 and configured to face a second braking surface 108 of the brake disk 3 on the opposite side of the first braking surface 106, and

[0095] including at least one bridge 109 connecting the first elongated portion 105 and the second elongated portion 107 and disposed across the disk 3.

[0096] The brake caliper 1 further includes at least one pair of opposing brake pads including a first brake pad 110 and a second brake pad 120.

[0097] Each brake pad 110, 120 of the at least one pair of opposing brake pads includes

[0098] friction materials 111, 121, and

[0099] support plates 112, 122 supporting the friction materials 111, 121.

[0100] Each support plate 112, 122 of each brake pad 110, 120 includes plate backs 113, 223 facing respective elongated portions of the elongated portions 105, 107 of the caliper body 2.

[0101] The brake caliper 1 further includes

[0102] at least one thrust device 5 configured to apply a thrust action to the plate back 113 so as to abut against the first brake pad 110 of the pair of brake pads with respect to the braking surface 106 of the opposing braking surfaces 106, 108 of the disk 3, and

[0103] It includes at least one detection device 115 configured to detect a bias force directed in the axial direction X-X.

[0104] The detection device 115 of the brake caliper 1 is directly or indirectly interposed between the plate back 123 of the second brake pad 120 of the pair of brake pads and the elongated portion 107 of the caliper body 2, avoiding the provision of the thrust device 5 interposed between the detection device 115 and the plate back 123 of the second brake pad 120 of the pair of brake pads.

Explanation of Signs

[0105] 1: Brake caliper of disc brake 2: Caliper body 3: Brake disc 4: Thrust device housing 5: Thrust device, such as a piston 6: Brake pad 7: Brake surface 8: Brake surface 9: Translational nut screw 10: Endless screw or worm, e.g. with recirculating ball screw 11: Reducer or gearbox 12: Thrust bearing 13: Radial outer swivel ring or outer bearing 14: First radial inner swivel ring or first inner bearing ring 15: Planet gear pin or second radial inner swivel ring supporting the second inner bearing ring 16: First outer swivel ring housing 17: Fixed gear or internal gear body or ring gear 18: Planet gear 19: Second outer swivel ring housing 20: Planetary gear mechanism 21: Planet gear pin 22: Screw shank 23: Pin housing 24: Ratio motor 25: Electric motor 26: Insertion opening 27: Screw thrust head 28: Inner thrust device chamber 29: X-X support ring brake disk rotating shaft 30: Snap engagement device 31: Limit stop disk 32: Limit stop disk 33: Disk brake 34: Holding device, for example anti-rotation device 105: First elongated part 106: First brake surface 107: Second elongated part 108: Second brake surface 109: At least one bridge 110: First brake pad 120: Second brake pad 111: Friction material 121: Friction material 112: Support plate 122: Support plate 113: Plate back 123: Plate back 115: Axial bias detection device A-A: Axial direction parallel to the rotating shaft R-R: Radial direction perpendicular to the rotating shaft C-C: Circumferential direction perpendicular to the axial and radial directions T-T: Tangential direction perpendicular to the radial and axial directions in time

Claims

1. A brake caliper (1) for a disc brake, wherein the brake caliper (1) for the disc brake comprises a caliper body (2) adapted to apply a braking action to a vehicle across a brake disc (3), the brake disc (3) defines an axial direction (A - A) oriented along or parallel to the axis of rotation (X - X) of the brake disc (3), a radial direction (R - R) orthogonal to the axial direction (A - A), a circumferential direction (C - C) orthogonal to the axial direction (A - A) and the radial direction (R - R), and a tangential direction (T - T) locally orthogonal to the axial direction (A - A) and the radial direction (R - R) and tangential to the circumferential direction (C - C), the caliper body (2) comprises at least one thrust device housing (4) accommodating a thrust device (5) configured to bias at least one brake pad (6) to abut the at least one brake pad (6) against brake surfaces (7, 8) of the brake disc (3), the thrust device (5) is operatively connected to a translation screw nut (9) and also operatively connected to a worm (10), the translation screw nut (9) is operatively connected to the worm (10), the worm (10) is operatively connected to a gearbox (11), the worm (10) is rotatably supported by a thrust bearing (12) configured to support the worm (10) in a rotatable manner and apply an axial reaction force, i.e., a direct reaction mainly along the axial direction (A - A), at least a part of the gearbox (11) disposed near the worm (10) and operatively connected to the worm (10) is rotatably supported by the thrust bearing (12) configured to support at least a part of the gearbox (11) in a rotatable manner and apply a radial reaction force, i.e., a direct reaction mainly along the radial direction (R - R), to at least a part of the gearbox (11), the thrust bearing (12) includes at least one radially outer swivel ring (13), the radially outer swivel ring (13) is connected to a first outer swivel ring housing (16) provided at least partially in the caliper body (2), The gearbox (11) comprises a fixed gear or an internally toothed body (17) that cooperates with at least one planetary gear (18), The fixed gear or the internally toothed body (17) is connected to the caliper body (2), The radially outer swivel ring (13) is connected to a second outer swivel ring housing (19) that is provided at least partially on the fixed gear or the internally toothed body (17), the brake caliper (1).

2. The worm (10) is rotatably supported only by the thrust bearing (12), and / or The thrust bearing (12) is an angular bearing configured to support both the load directed in the axial direction (A - A) and the load directed in the radial direction (R - R), and / or The worm (10) is a recirculating ball worm, The brake caliper (1) according to claim 1.

3. The thrust bearing (12) has at least one radially inner swivel ring (14, 15), The at least one planetary gear (18) is rotatably supported around at least one planetary gear pin (21), The at least one radially inner swivel ring (15) includes at least a pin housing (23), and the at least one pin housing (23) houses the at least one planetary gear pin (21), and / or The at least one radially inner swivel ring (14, 15) is connected to the worm (10), and / or The worm (10) includes a threaded shank (22), and the at least one radially inner swivel ring (14, 15) is connected to the threaded shank (22) so as to transmit the action of the gearbox (11) to the worm (10) by the at least one radially inner swivel ring (14, 15), and / or The worm (10) includes a threaded shank (22), and the at least one radially inner swivel ring (14, 15) is coupled to the threaded shank (22) so as to transmit the movement of the gearbox (11) to the worm (10) via the at least one radially inner swivel ring (14, 15), the brake caliper (1) according to claim 1 or 2.

4. The thrust bearing (12) comprises at least one radially inner swivel ring (14, 15), At least one radially inner swivel ring (14, 15) is integral with the worm (10) and / or the worm (10) includes a threaded shank (22), and the at least one radially inner swivel ring (14, 15) is integral with the threaded shank (22) such that the action of the gearbox (11) is transmitted to the worm (10) by the at least one radially inner swivel ring (14, 15) and / or the at least one radially inner swivel ring (14, 15) consists of a first inner swivel ring (14) and a second inner swivel ring (15) arranged side by side, and the second inner swivel ring (15) is operatively connected to the gearbox (11), the gearbox (11) has a planetary gear mechanism (20), the second inner swivel ring (15) includes at least one pin housing (23), the at least one pin housing (23) houses at least one planetary gear pin (21) rotatably supporting the at least one planetary gear (18) of the planetary gear mechanism (20), Brake caliper (1) according to claim 3.

5. the gearbox (11) is part of a servo motor (24) including an electric motor (25) operatively connected to the gearbox (11) and / or the brake caliper (1) is an electrically actuated caliper, Brake caliper (1) according to any one of claims 1 to 4.

6. the thrust device housing (4) has an insertion opening (26), the insertion opening (26) opens towards the gearbox (11) and enables insertion of the thrust device (5) and / or the feed screw (9) and the worm (10) into the thrust device housing (4) and / or the thrust device (5) has a thrust device inner chamber (28), the thrust device inner chamber (28) houses the feed screw (9) and the worm (10), Brake caliper (1) according to any one of claims 1 to 5.

7. a support ring (29) is interposed between the thrust device (5) and the feed screw (9), the feed screw (9) rests on the support ring (29) and / or the feed screw (9) includes at least one snap coupling device (30), The snap coupling device (30) connects by snapping the translation screw (9) onto the thrust device (5) and / or the worm (10) comprises a screw thrust head (27) configured to cooperate directly or indirectly with the thrust device (5) and / or a limit stop disk (31) is inserted between the thrust device (5) and the screw thrust head (27) and / or the limit stop disk (31) is in the form of a spherical cap (32), the brake caliper (1) according to any one of claims 1 to 6.

8. A brake disk device (33) comprising the brake caliper according to any one of claims 1 to 7 and a brake disk (3).

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