EP3482098A2 - Scheibenbremse für ein nutzfahrzeug - Google Patents
Scheibenbremse für ein nutzfahrzeugInfo
- Publication number
- EP3482098A2 EP3482098A2 EP17732911.7A EP17732911A EP3482098A2 EP 3482098 A2 EP3482098 A2 EP 3482098A2 EP 17732911 A EP17732911 A EP 17732911A EP 3482098 A2 EP3482098 A2 EP 3482098A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- brake
- pressure piece
- tool
- adjusting spindle
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/2255—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is pivoted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/20—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same inserting or withdrawing split pins or circlips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/134—Connection
- F16D2065/1392—Connection elements
- F16D2065/1396—Ancillary resilient elements, e.g. anti-rattle or retraction springs
Definitions
- the invention relates to a disc brake for a commercial vehicle according to the preamble of claim 1.
- the caliper of such a disc brake which engages over a brake disc on the vehicle side, serves for the storage of functional parts, which are required for the operation of the disc brake, and for the reception of braking forces.
- the functional parts include u.a. an application device, which is arranged in a receiving chamber of the caliper and which has a pivotally mounted on one hand on an inner wall of the caliper and on the other hand on a bridge pivoting brake lever, and at least one spindle formed as a threaded spindle, which is rotatably mounted in a threaded bore of the bridge GE ,
- an adjusting device is provided with which a wear-changing clearance, i. the distance between the associated brake pad and the brake disc is compensated.
- a wear-changing clearance i. the distance between the associated brake pad and the brake disc is compensated.
- the adjusting spindle is associated with a bellows, through which the outlet region of the adjusting spindle is hermetically sealed from the brake caliper.
- the bellows is usually frictionally held on a closing plate closing the receiving chamber, which is passed through by the adjusting spindle.
- the bellows is sealingly against the adjusting spindle or on a pressure piece, which is rotatably mounted on the brake pad on the side facing the adjusting spindle and which contacts the brake pad in the event of braking.
- a disc brake is disclosed in DE 195 15 063 C1.
- the bellows directly on the caliper, preferably also frictionally secured.
- the bellows in its moldable region consists of an elastomer or other suitable plastic.
- the bellows or the material used must be extremely elastic in order to compensate for the Nachstellhub the adjusting spindle can.
- the materials suitable for this purpose are limited in terms of their temperature resistance, so that, due to the relatively high temperatures arising in the connection area of the bellows during braking, the service life of the bellows is relatively low and replacement during the service life of the disc brake is unavoidable.
- an explosive or corrugated ring is inserted into the rear side of the head facing away from the pressure piece, which also bears radially outwardly in a recess of the pressure piece.
- the invention has for its object to further develop a disc brake of the generic type so that the disassembly of the bellows and / or the pressure piece is easier and less expensive possible.
- a disc brake with the features of claim 1.
- the thrust piece rotatable relative to the adjusting spindle is held by the retaining ring axially positively secured to the adjusting spindle, wherein the pressure piece in the interior of the adjusting spindle associated with the head has a circumferential groove in which the retaining ring rests with a portion, while another , formed by the radial indentation portion is supported on the head of the adjusting spindle.
- the locking ring is formed as a corrugated ring made of spring wire, with a plurality of equiangularly spaced radial Einbuch- lines, said securing ring provided by its inventively
- Cutting can be brought so far out of engagement with the pressure piece with a suitable tool under radial compression, that a removal of the pressure piece is possible.
- the adjusting spindle with a plurality, preferably three axial grooves, which continue into the head of the adjusting spindle and which are likewise arranged at the same angular distance from one another.
- the recess it is necessary for the recess to be in the overlapping area of the at least one axial groove, so that the indentation in the axial groove can be pressed in so far by means of the suitable tool that the engagement in the pressure piece triggers.
- the number of indentations on the one hand is odd and on the other hand significantly more than the number of axial grooves, so that it is ensured in each case that several indentations are positioned in the covering area with associated axial grooves.
- a tool which consists according to the invention of a circumferentially partially open ring, with connected, axially extending arms whose number corresponds at most to the number of axial grooves and which are arranged at the same angular distance from each other.
- the locking ring on seven indentations, while the adjusting spindle has three axial grooves, as well as the tool has three arms.
- the arms go from radially inwardly projecting guide webs, which engage in the functional position of the tool in the axial grooves and to which the Connecting arms, which are each formed at their free end in the sense of a barb.
- the tool is laterally pushed radially under bending of the ring on the adjusting spindle, with the retaining ring towards aligned arms, wherein the ring spreads and the guide webs engage in the axial grooves of the adjusting spindle.
- the circumferential opening of the ring is to make correspondingly large, but smaller than 180 °, preferably at an angle of 120 °, when three guide webs, corresponding to three axial grooves are provided at the same angular distance from each other.
- each indentation forms a free space for the pressure piece, wherein in at least one free space an associated arm of the tool dips under radial deflection of the retaining ring in the indentation area.
- the barb-shaped end of the arm engages under the retaining ring in the region of the indentation, so that the retaining ring, is brought out of engagement with the pressure piece at least in this area.
- the tool at least in the region of the ring, consists of an elastic material, preferably of a suitable plastic, wherein expediently the ring and the arms are integrally formed.
- the invention further relates to a prefabricated repair set, with a pressure piece, a bellows attached thereto and a tool according to claim 5. Since the tool can be used as a disposable tool as a plastic injection molded part due to the function-related small size and cheap production, providing a tool outside Such a repair kit is no longer required, resulting naturally clear handling advantages. This particular from the immediate Availability as a result of changing the pressure piece and the bellows. Another advantage is to be considered that the existing of a suitable plastic tool can be recycled. Further advantageous embodiments of the invention are characterized in the subclaims.
- Figure 2 shows a detail of the disc brake according to the invention in a longitudinal section
- FIG. 5 shows a further detail of the illustration according to FIGS. 3 and
- Figure 6 shows an inventive tool also in a perspective view.
- FIG. 1 shows a disk brake for commercial vehicles according to the state of the art, with a brake caliper 1 which engages over a vehicle-side brake disk 3 and in which two brake linings 4 are mounted which can be pressed against the brake disk 3 on both sides during braking.
- an application device 5 is arranged in the brake caliper 1, which has a pneumatically or electromechanically actuated, pivotable brake lever 6, on the one hand rests on the back of the caliper 1 and on the other hand is supported on a bridge 7, in the rotatable two parallel and spaced apart, with an adjusting screw provided with an external thread 9 are held.
- a pressure piece 10 which are pressed upon actuation of the brake lever 6 to the brake pad 4 and thus against the brake disc 3.
- an adjusting device 8 is provided, with a wear-related change in the clearance, ie the distance between the brake disc 3 and the brake pads 4 is compensated, including the adjusting device 8 is in engagement with the adjusting spindles 9.
- the external thread of these adjusting spindles 9 corresponds to the thread a threaded bore in the bridge 7, so that upon rotation of the adjusting spindles 9 takes place an axial movement.
- a bellows 1 in the example a bellows, rotationally arranged on each pressure piece 10, on the other hand with the closure plate 2, also against rotation, is connected.
- FIGS. 2 to 4 as a detail of a disc brake according to the invention, an adjusting spindle 9 can be seen, which at the same angular distance from one another has axial grooves 13 on the outside, which are guided into an integrally formed, stamp-like thickened head 12.
- a retaining ring 14 which rests in a circumferential inner groove 23 of the pressure piece 10 and, according to the invention, at least one radial indentation 15 to form a free space 16 to the pressure piece 10, this is rotatable, but axially secured to the adjusting spindle 9, wherein the region of the indentation 15 is supported on the rear side of the head 12 facing the threaded part of the adjusting spindle 9.
- the locking ring 14 is formed as a corrugated ring with a plurality of indentations 15, for example, seven in number, so that in each case one of the recesses 15 is positioned in the overlap region of an axial groove 13.
- the locking ring 14 For a necessary replacement of the pressure piece 10, the locking ring 14 must be disengaged from the pressure piece 10, for which purpose a tool 17 is used, which is shown as a detail in the figure 6.
- FIG. 3 shows a position in which the tool 17 is located in front of an engagement in the securing ring 14. It can be seen that the tool 17 in the example according to the number of axial grooves 13 guide webs 19, which are formed radially inwardly formed on a circumferentially open ring 18 and which engage in the axial grooves 13.
- the tool 17 consisting of an elastic material, preferably a plastic material, this is pushed laterally onto the adjusting spindle 9 while spreading the ring 18 until the guide webs 19 engage in the axial grooves 13.
- the tool 17 After placing the tool 17 on the adjusting spindle 9, as shown in Figure 3, the tool 17 is axially displaced along the axial grooves 13 in the direction of the locking ring 14 until at least one arm 20 with its free end to an associated indentation 15th meets in the region of the free space 16 and this indentation 15 presses in a further displacement of the tool 17 in the direction of the adjusting spindle 9, so that the locking ring 10 from its locked position in the pressure piece 10 device and the existing positive connection of the locking ring 14 with the pressure piece 10 is released and the pressure piece 10 can be removed from the adjusting spindle 9.
- the barb 20 can easily pass through the free space 16 into the axial groove 13 of the head 12.
- FIG. 4 a This is illustrated in FIG. 4 a on the basis of the arm 20 of the tool 17, which can be seen on the left-hand side.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016112265.3A DE102016112265A1 (de) | 2016-07-05 | 2016-07-05 | Scheibenbremse für ein Nutzfahrzeug |
PCT/EP2017/065758 WO2018007194A2 (de) | 2016-07-05 | 2017-06-27 | Scheibenbremse für ein nutzfahrzeug |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3482098A2 true EP3482098A2 (de) | 2019-05-15 |
Family
ID=59215794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17732911.7A Withdrawn EP3482098A2 (de) | 2016-07-05 | 2017-06-27 | Scheibenbremse für ein nutzfahrzeug |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3482098A2 (de) |
DE (1) | DE102016112265A1 (de) |
WO (1) | WO2018007194A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017109827B4 (de) * | 2017-05-08 | 2022-12-22 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein Nutzfahrzeug |
DE102021112309A1 (de) | 2021-05-11 | 2022-11-17 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Werkzeug zur Demontage eines Druckstücks einer Zuspanneinrichtung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3470600A (en) * | 1967-07-31 | 1969-10-07 | William A Hosbach | Tool for lock rings |
US4475276A (en) * | 1981-12-14 | 1984-10-09 | Helen Donaldson | Snap ring removal tool |
US4563804A (en) * | 1983-03-04 | 1986-01-14 | Draf Industries, Inc. | Air conditioning compressor retaining ring remover tool |
DE19515063C2 (de) | 1995-04-27 | 2002-06-06 | Knorr Bremse Systeme | Scheibenbremse für Fahrzeuge, insbesondere Straßenfahrzeuge |
JPH11508022A (ja) * | 1995-06-20 | 1999-07-13 | ルーカス・インダストリーズ・パブリック・リミテッド・カンパニー | デイスクブレーキ |
BR0303128B1 (pt) * | 2002-08-06 | 2014-10-29 | Meritor Heavy Vehicle Braking | Calibrador de freio |
GB0301798D0 (en) * | 2003-01-25 | 2003-02-26 | Meritor Heavy Vehicle Braking | Force transmission device for a disc brake |
DE102012014886A1 (de) * | 2012-07-26 | 2014-01-30 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Zuspanneinrichtung einer Scheibenbremse für ein Nutzfahrzeug |
DE102013101636A1 (de) * | 2013-02-19 | 2014-08-21 | Bpw Bergische Achsen Kg | Scheibenbremse für Fahrzeuge |
DE102015105344A1 (de) | 2014-08-07 | 2016-02-11 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein Nutzfahrzeug |
DE102015104183A1 (de) * | 2015-03-20 | 2016-09-22 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für ein Nutzfahrzeug |
-
2016
- 2016-07-05 DE DE102016112265.3A patent/DE102016112265A1/de not_active Ceased
-
2017
- 2017-06-27 WO PCT/EP2017/065758 patent/WO2018007194A2/de unknown
- 2017-06-27 EP EP17732911.7A patent/EP3482098A2/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2018007194A3 (de) | 2018-03-01 |
WO2018007194A2 (de) | 2018-01-11 |
DE102016112265A1 (de) | 2018-01-11 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20190205 |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
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STAA | Information on the status of an ep patent application or granted ep patent |
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INTG | Intention to grant announced |
Effective date: 20200629 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20201110 |