DE3321805A1 - Holder for the calliper of a partial lining disc brake - Google Patents
Holder for the calliper of a partial lining disc brakeInfo
- Publication number
- DE3321805A1 DE3321805A1 DE19833321805 DE3321805A DE3321805A1 DE 3321805 A1 DE3321805 A1 DE 3321805A1 DE 19833321805 DE19833321805 DE 19833321805 DE 3321805 A DE3321805 A DE 3321805A DE 3321805 A1 DE3321805 A1 DE 3321805A1
- Authority
- DE
- Germany
- Prior art keywords
- holder
- bores
- brake
- holder according
- fastening
- 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.)
- Ceased
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
- F16D55/226—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 moved axially, e.g. floating caliper disc brakes
-
- 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
- F16D55/226—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 moved axially, e.g. floating caliper disc brakes
- F16D55/2265—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 moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing
- F16D55/227—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 moved axially, e.g. floating caliper disc brakes the axial movement being guided by one or more pins engaging bores in the brake support or the brake housing by two or more pins
-
- 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
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0008—Brake supports
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Halter für den Sattel einer Teilbelag-Sdheibenbremse Die Erfindung betrifft einen Halter für den Sattel einer Teilbelag-Scheibenbremse gemäß dem Oberbegriff des Patentanspruchs 1.Holder for the saddle of a partially paved disc brake The invention relates to a holder for the caliper of a partially lined disc brake according to the preamble of claim 1.
Halter der im Oberbegriff des Patentanspruchses 1 angegebenen Art weisen üblicherweise zwei Befestigungsbohrungen auf, die in in Umfangsrichtung mit Abstand angeordneten Bereichen des Halters angeordnet sind, wobei eine Verbindung zwischen diesen Bereichen über einen Steg hergestellt wird. Aus der DE- OS 29 38 784 ist auch bereits ein Halter bekannt, der, offenbar um die Befestigungsbolzen dünner machen zu können bzw. aus Sicherheitsgründen, mit vier Befestigungsbohrungen versehen ist, wobei die Bohrungen im wesentlichen symmetrisch angeordnet sind und auf beiden Seiten des Halters jeweils eine radial außenliegende und eine radial innenliegende Bohrung vorgesehen ist. Die radial innenliegenden Befestigungsbohrungen sind dabei näher der Mitte des Halters angeordnet. Bei Anordnungen mit zwei Befestigungsbohrungen bzw. bei der bekannten Anordnung mit vier Befestigungsbohrungen, muß de die Bohrungsbereiche verbindende Steg aus Festigkeitsgründen in radialer Richtung relativ stark ausgebildet werden; dies führt vielfach zu Einbauschwierigkeiten am Fahrzeug.Holder of the type specified in the preamble of claim 1 usually have two mounting bores that are in the circumferential direction Spaced areas of the holder are arranged, with a connection is established between these areas via a web. From DE-OS 29 38 784 a holder is already known which, apparently around the fastening bolts To be able to make thinner or for safety reasons, with four mounting holes is provided, wherein the bores are arranged substantially symmetrically and one radially outer and one radially on both sides of the holder internal bore is provided. The radially inner mounting holes are arranged closer to the center of the holder. For arrangements with two mounting holes or in the known arrangement with four mounting holes, de must the hole areas connecting web for reasons of strength formed relatively strong in the radial direction will; this often leads to installation difficulties on the vehicle.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Halter für den Sattel einer Teilbelag-Scheibenbremse zu schaffen, bei dem derartige Binbausc11wierigReiten nicht auftreten und der insbesondere einen in radialer Richtung schmaleren Steg aufweist.The invention is therefore based on the object of providing a holder for the To create a saddle of a partially paved disc brake in which such installation is difficult to ride do not occur and in particular a ridge that is narrower in the radial direction having.
Diese Aufgabe wird erfindungsgemäß durch die den Patentanspruch 1 gekennzeichnenden Merkmale gelöst.This object is achieved according to the invention by claim 1 characteristic features solved.
Mit der erfindungsgemäßen Lösung wird ein Halter für den Sattel einer Teilbelag-Scheibenbremse geschaffen, bei dem durch eine überraschend starke Entlastung des Stegs in konstruktiv einfacher Weise eine Herabminderung der Stegbreite in radialer Richtung auf das geringstmögliche Maß möglich ist. Die Dimensionierung des Stegs innerhalb des statisch unbestimmt gewordenen Systems ist nämlich im wesntlichen nur noch von der Bremskraft bei Rückwärtsfahrt abhänyig. Auch können dadurch leichte Werkstoffe zum Einsatz gelangen, deren Anwendung aus Festigkeitsgründen bisher nicht möglich war.With the solution according to the invention, a holder for the saddle is a Partially lined disc brake created with a surprisingly strong relief of the web in a structurally simple manner, a reduction in the web width in the radial direction Direction to the lowest possible level is possible. The dimensioning of the bridge within the system, which has become statically indeterminate, is in essence only dependent on the braking force when reversing. This can also make light Materials are used that have not yet been used for reasons of strength was possible.
Gemäß einer Ausgestaltung der Erfindung ist vorgesehen, daß die Bohrungen im wesentlichen den selben radialen Abstand von der Bremsscheibenachse aufweisen.According to one embodiment of the invention it is provided that the bores have essentially the same radial distance from the brake disk axis.
Besonders vorteilhaft wirkt sich die Erfindung aus, wenn der Sattel zwei Bremsbacken umgreift, die zu beiden Seiten der Bremsscheibe am Bremsträger abgestützt sind.The invention is particularly advantageous when the saddle two brake shoes embraced on both sides of the brake disc on the brake carrier are supported.
Eine andere Ausgestaltung der Erfindung sieht vor, daß auf der den Befestigungsteil gegenüberliegenden Seite, die Trägerarme über einen Unterzug miteinander verbunden sind.Another embodiment of the invention provides that on the Fastening part on the opposite side, the carrier arms with one another via a joist are connected.
Zweckmäßig sind zwei der Befestigungsbohrungen in Umfangsrichtung im Bereich der Trägerarme angeordnet, während die dritte Befestigungsbohrung in Umfangsrichtung außerhalb der Trägerarme vorgesehen ist.Two of the fastening bores are expedient in the circumferential direction arranged in the area of the support arms, while the third mounting hole in Circumferential direction is provided outside of the support arms.
FUr den Abstand der auf der Scheibenauslaufseite angeordneten Bohrung, gilt zweckmäßig: H 2 3D, wobei H der Abstand der Mittelpunkte der Bohrungen und D der Bohrungsdurchmesser ist. Bei verschiendenen großen Bohrungsdurchmessern ist D der Durchmesser der größeren Bohrung. Insbesondere die tangential gesehen außenliegende Bohrung kann aus Fectigeitsgründen im Durchmesser zweckmäßig kleiner ausgeführt werden.For the distance between the hole on the disc outlet side, The following applies appropriately: H 2 3D, where H is the distance between the centers of the holes and D is the bore diameter. With different large bore diameters D is the diameter of the larger hole. In particular, the one on the outside seen tangentially For reasons of functionality, the bore can expediently be made smaller in diameter will.
Ausführungsbeispiele der Erfindung und ihre Ausgestaltungen sind in der Zeichnung dargestellt und im folgenden beschrieben.Embodiments of the invention and their configurations are shown in FIG shown in the drawing and described below.
Es zeigen: Fig 1 eine Teilbelag-Scheibenbremse teilweise geschnitten mit einem Dreipunkt-Halter; Fig 2 eine Draufsicht auf die Teilbelag-Scheibenbremse der Fig. 1.They show: FIG. 1 a partially-lined disc brake, partially in section with a three-point bracket; 2 shows a plan view of the partially lined disc brake of Fig. 1.
Die in den Figuren 1 und 2 dargestellte Teilbelag-Scheibenbremse weist einen Halter 2 auf, der auf einer Seite einer Bremsscheiben 4 fest mit dem Fahrzeug verbunden ist. Der Halter 2 besteht aus einem sich im wesentlichen parallel zur Bremsscheibe erstreckenden Befestigungsteil 6, welches hier eine im wesentlichen U-förmige Gestalt aufweist. An den Schenkeln des U-förmigen Befestigungsteiles 6 sind sich im wesentlichen axial erstreckende Trägerarme 8,10 vorgesehen, die den äußeren Rand der BremsscheiDe 4 übergreifen. Auf der anderen Seite der Bremsscheibe 2 sind die Trägerarme 8,10 mittels eines Unterzuges 12 verbunden. Zwei Bremsbacken 14,16 sind einander gegenüberliegend auf beiden Seiten der Bremsscheiben 4 angeordnet und stützen sich mit ihren Rückenplatten an den Trägerarmen 8,10 ab. Ein Sattel 18 ist auf zwei am Halter 2 befestigten, sich axial erstreckenden Bolzen geführt; in den Figuren sind lediglich die die Bolzen umgebenden elastischen Hülsen 20,22 zu sehen. Der Sattel 18 hat eine im wesentlichen U-förmige Gestalt, die von einem ersten sich radial erstreckenden Schenkel 24 einem Brückenteil 26 und einem zweiten sich radial erstrekkenden Schenkel 28 gebildet wird. In den ersten radialen Schenkel 24 ist ein Betätigungszylinder 30 integriert, der einen (nicht dargestellten) Bremskolben aufnimmt.The partially lined disc brake shown in Figures 1 and 2 has a holder 2, which on one side of a brake disc 4 is fixed to the vehicle connected is. The holder 2 consists of a substantially parallel to Brake disc extending fastening part 6, which here is a substantially Has a U-shaped shape. On the legs of the U-shaped fastening part 6 are provided substantially axially extending support arms 8,10 which the outer edge of the brake disc 4 overlap. On the other hand The support arms 8, 10 are connected to the brake disk 2 by means of a girder 12. Two brake shoes 14, 16 are opposite one another on both sides of the brake disks 4 arranged and are supported with their back plates on the support arms 8,10. A saddle 18 is on two axially extending bolts attached to the holder 2 guided; only the elastic sleeves surrounding the bolts are shown in the figures 20.22 to see. The saddle 18 has a substantially U-shaped shape that of a first radially extending leg 24, a bridge part 26 and a second radially extending leg 28 is formed. In the first radial Leg 24 an actuating cylinder 30 is integrated, which has a (not shown) Receives brake piston.
Zur Betätigung der Bremse wird in den zwischen Betätigungszylinder 30 und dem Bremskolben gebildeten DruckS raum Druckmedium eingeführt, wodurch der Bremskolben und der Sattel 18 sich relativ zueinander bewegen. Der Bremskolben beaufschlagt dabei die Bremsbacke 14 unmittelbar, während die gegenüberliegende Bremsbacke 16 vom Schenkel 28 des Sattels 18 beaufschlagt wird.To operate the brake is in the between the actuating cylinder 30 and the brake piston formed DruckS space pressure medium introduced, whereby the The brake piston and the caliper 18 move relative to one another. The brake piston acts the brake shoe 14 directly, while the opposite brake shoe 16 is acted upon by the leg 28 of the saddle 18.
Der Befestigungsteil 6 des Halters 2 weist eine im wesentlichen U-förmige Gestalt auf. Zwei Befestigungsbohrungen 32,34 sind tangential gesehen im Bereich der Trägerarme 8,10 des Halters vorgesehen und radial gesehen auf der selben Höhe angeordnet. Abweichend von dem U-förmigen Grundkörper des Halters 2 ist ein Ansatz 36 vorgesehen, der, ausgehend etwa vom Übergangsbereich zwischen der Basis und dem Schenkel des U--förmigen Grundkörpers, sich schräg nach außen zur in Fig. 1 horizontalen Mittellinie verläuft. Dieser Ansatz 36 ist mit einer dritten Befestigungsbohrung 38 versehen, die im wesentlichen auf dem selben Radius liegt, wie die Befestigungsbohrungen 32,34 im Grundkörper des Halters 2.The fastening part 6 of the holder 2 has a substantially U-shaped Shape up. Two fastening bores 32, 34 are seen tangentially in the area the support arms 8,10 of the holder are provided and viewed radially at the same height arranged. Deviating from the U-shaped base body of the holder 2 is an approach 36 is provided which, starting approximately from the transition area between the base and the Legs of the U-shaped base body are inclined outwards to the horizontal in FIG. 1 Center line runs. This approach 36 is with a third mounting hole 38 provided, which is essentially on the same radius as the fastening bores 32, 34 in the base body of the holder 2.
Der Ansatz 36 am Halter 2 liegt auf der Auslaufseite der Bremsscheibe bei Vorwärtsfahrt. Für den Abstand H der Bohrungen 32, 38 gilt: H 2 3D wobei D der Durchmesser der Bohrung ist.The shoulder 36 on the holder 2 is on the outlet side of the brake disc when driving forward. The following applies to the distance H of the bores 32, 38: H 2 3D where D is the The diameter of the hole.
Durch die erfindungsgemäße Dreipunktbefestigung lassen sich überraschend die Spannungen und die Verformungen in Umfangsri&htung und in axialer Richtung ganz erheblich herabsetzen. Dadurch stellen sich die Auflageflächen für die Beläge weniger schräg, was sich positiv auf den Reibbelagverschleiß auswirkt.The three-point attachment according to the invention can be surprising the stresses and deformations in the circumferential direction and in the axial direction reduce quite considerably. This creates the contact surfaces for the coverings less inclined, which has a positive effect on friction lining wear.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833321805 DE3321805A1 (en) | 1983-06-16 | 1983-06-16 | Holder for the calliper of a partial lining disc brake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833321805 DE3321805A1 (en) | 1983-06-16 | 1983-06-16 | Holder for the calliper of a partial lining disc brake |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3321805A1 true DE3321805A1 (en) | 1984-12-20 |
Family
ID=6201682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833321805 Ceased DE3321805A1 (en) | 1983-06-16 | 1983-06-16 | Holder for the calliper of a partial lining disc brake |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3321805A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2578931A1 (en) * | 1985-03-15 | 1986-09-19 | Teves Gmbh Alfred | SLIDING CALIPER DISC BRAKE |
DE4401843A1 (en) * | 1994-01-22 | 1995-07-27 | Teves Gmbh Alfred | Disc brake caliper with housing comprising brake disc and linings |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1982850U (en) * | 1968-01-22 | 1968-04-04 | Lebrecht Knipping | BRAKE SHOE FOR MOTOR VEHICLES. |
GB1244423A (en) * | 1968-07-01 | 1971-09-02 | Kelsey Hayes Co | Disc brake |
DE2247674A1 (en) * | 1971-10-04 | 1973-04-12 | Dba Sa | DISC BRAKE |
DE2938784A1 (en) * | 1978-09-25 | 1980-04-03 | Lucas Industries Ltd | DISC BRAKE |
-
1983
- 1983-06-16 DE DE19833321805 patent/DE3321805A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1982850U (en) * | 1968-01-22 | 1968-04-04 | Lebrecht Knipping | BRAKE SHOE FOR MOTOR VEHICLES. |
GB1244423A (en) * | 1968-07-01 | 1971-09-02 | Kelsey Hayes Co | Disc brake |
DE2247674A1 (en) * | 1971-10-04 | 1973-04-12 | Dba Sa | DISC BRAKE |
DE2938784A1 (en) * | 1978-09-25 | 1980-04-03 | Lucas Industries Ltd | DISC BRAKE |
Non-Patent Citations (1)
Title |
---|
JP-Abstr. 56-49431 (1981) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2578931A1 (en) * | 1985-03-15 | 1986-09-19 | Teves Gmbh Alfred | SLIDING CALIPER DISC BRAKE |
DE3509277A1 (en) * | 1985-03-15 | 1986-09-25 | Alfred Teves Gmbh, 6000 Frankfurt | PARTIAL DISC BRAKE, IN PARTICULAR FOR MOTOR VEHICLES |
US4722425A (en) * | 1985-03-15 | 1988-02-02 | Alfred Teves Gmbh | Spot-type disc brake for automotive vehicles |
DE4401843A1 (en) * | 1994-01-22 | 1995-07-27 | Teves Gmbh Alfred | Disc brake caliper with housing comprising brake disc and linings |
DE4401843C2 (en) * | 1994-01-22 | 2003-04-30 | Continental Teves Ag & Co Ohg | Floating caliper for disc brakes |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19726674B4 (en) | brake disc | |
EP0412541B1 (en) | Spot-type disc brake | |
DE4131130B4 (en) | Parting disc brake and brake pad | |
DE2055973A1 (en) | Disc brake | |
DE2510036C2 (en) | Floating caliper disc brake | |
DE69011279T2 (en) | Wheels with built-in brake discs. | |
DE2931071C2 (en) | Combined hold-down and spreader spring | |
DE60211742T2 (en) | DISC BRAKE CALIPER FOR VEHICLES | |
DE1937555C3 (en) | Guide for the frame or saddle of a floating frame or floating saddle-partially covered disc brake | |
DE8519567U1 (en) | Disc brake with brake caliper and brake pads attached by hooks in the brake caliper | |
DE3014057C2 (en) | ||
DE2705788C2 (en) | Guide for the saddle of a hydraulically actuated floating-caliper partially covered disc brake for vehicles | |
DE10212670B4 (en) | disc brake | |
DE3304904A1 (en) | Floating-calliper spot-type disc brake | |
DE10260829A1 (en) | Radial mounting type disc brake for vehicle, has communication path arranged between exit side bolt attachment hole and brake pad on caliper and positioned relative to disc rotation direction | |
DE4208003C2 (en) | Part brake disc brake with easy mounting of the brake pads | |
DE2557302C2 (en) | Partially lined disc brakes for motor vehicles | |
CH658301A5 (en) | DISC BRAKE, ESPECIALLY FOR VEHICLES. | |
EP0984188B1 (en) | Partly lined disk brake | |
DE3321805A1 (en) | Holder for the calliper of a partial lining disc brake | |
DE3509277C2 (en) | ||
EP0469310A1 (en) | Brake pad for spot-type disc brakes | |
DE3833553A1 (en) | Fixed-calliper spot-type disk brake with an asymmetrically split housing | |
DE3510372A1 (en) | Floating-calliper spot-type disc brake | |
DE1814587B2 (en) | HYDRAULIC DUAL CIRCUIT BRAKE CYLINDER |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: F16D 55/224 |
|
8131 | Rejection |