GB1576503A - Floating type disc brake - Google Patents
Floating type disc brake Download PDFInfo
- Publication number
- GB1576503A GB1576503A GB641777A GB641777A GB1576503A GB 1576503 A GB1576503 A GB 1576503A GB 641777 A GB641777 A GB 641777A GB 641777 A GB641777 A GB 641777A GB 1576503 A GB1576503 A GB 1576503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- friction pads
- arms
- caliper member
- disc brake
- 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.)
- Expired
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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
- F16D65/095—Pivots or supporting members therefor
- F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
- F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
- F16D65/0974—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis
- F16D65/0977—Springs made from sheet metal
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- 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
- F16D55/2262—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 open sliding surfaces, e.g. grooves
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- 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
- F16D55/22655—Constructional details of guide pins
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- 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
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- 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
- F16D2055/0016—Brake calipers
- F16D2055/002—Brake calipers assembled from a plurality of parts
-
- 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
- F16D2055/0041—Resilient elements interposed directly between the actuating member and the brake support, e.g. anti-rattle springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
(54) A FLOATING TYPE DISC BRAKE
(71) We, SUMITOMO ELECTRIC INDUS
TRIES LTD., a Japanese Company of No. 15,
Kitahama 5-chome, Higashi-ku, Osaka-shi,
Osaka, Japan, do hereby declare the invention, for which we pray that a patent may be granted to us, and the-method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to a floating type disc brake.
Floating type disc brakes generally comprise a pair of friction pads disposed on opposite sides of a disc to be braked, a fixed torque-receiving member which slidably guides the friction pads for movement axially of the disc, and a caliper member which is also movable axially of the disc and which has one of the friction pads fitted thereto, the other friction pad being connected to the caliper member through pressure means which can be operated to urge said other friction pad towards the disc. In order to prevent chattering of the friction pads due to the clearances between the various parts of the disc brake, it is known (for example as disclosed in published Japanese Patent
Application No. 50-127061) to insert springs in spaces between the friction pads and the caliper member. It is an object of the present invention to. provide a floating type disc brake having an improved arrangement of anti-chatter springs.
According to the present invention, there is provided a floating type disc brake comprising a pair of friction pads disposed on opposite sides of a disc to be braked for respective engagement with opposed surfaces thereof, a fixed member slidably guiding the friction pads for movement axially of said disc, a caliper member straddling the disc and supported by the fixed member or the friction pads both for sliding movement axially of said disc and against movement radially of said disc, one of the friction pads being fitted to the caliper member, the other being connected to the caliper member through pressure means operable to urge said other friction pad towards the disc, and a pair of resilient members interposed between -the caliper member, the fixed member and the friction -pads, each resilient member engaging radially outer portions of both friction pads and acting against the caliper member to urge the friction pads radially inwardly of said disc.
Also according to the present invention, there is provided a floating type disc brake comprising a fixed member having a pair of
U-shaped torque-receiving portions spaced apart circumferentially of. a disc to be braked, each torque-receiving portion .having two arms disposed respectively on opposite sides of the disc, a pair of friction pads disposed on opposite sides of said disc for respective engagement with opposed surfaces thereof, ends of the pads in the circumferential direction of said disc being slidably guided respectively by the. arms. of the U-shaped torque-receiving portions such that the pads are movable axially of said disc, a caliper member supported by the fixed member or the friction pads both for sliding movement axially of said disc and against movement radially of said disc, the caliper member including a pair of arm sections disposed respectively on opposite sides of the disc and a bridge section interconnecting. the arm sections, one of the arm sections having a respective one of the friction pads fitted thereto, pressure means being operatively disposed between the other of the arm sections and the other friction pad and being operable to urge said other friction pad towards said disc, and a pair of anti-chatter spring plates interposed between the caliper member and the friction pads, each spring plate having a first portion engaging one of the U-shaped torque-receiving. portions of the fixed member, a second portion engaging the bridge section of the caliper member, and a pair of arms respectively engaging radially outer portions of the friction pads, the spring plates acting against the caliper member to urge the friction pads radially inwardly of said disc.
Embodiments of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a plan view of a first -embodi- ment of a floating type disc brake according to the present invention;
Figure 2 is a side view of the disc brake
shown in figure 1;
Figure 3 is a section taken -along the line 111-111 in figure 1; Figure 4 is a section taken along the line I. V-IV in figure 1;
Figure 5 is a section taken along the line V-V in figure 1;
Figure 6 is a section taken along the line
VI-VI in figure 1;
Figure 7 is a schematic perspective view of an anti-chatter spring plate which forms part
of the disc brake shown in figures 1 to 6;
Figure 8 is a plan view of a second embodiment of a floating type disc brake according to the present invention;
Figure 9 is a - side view of the disc brake
shown in figure 8;
Figure 10 is a partially cross-sectional side view taken along the line X-X in figure 8;
Figure 11- is a section taken along the line
XI-XI in figure 9;
Figure 12 is an enlarged view showing a portion of figure 10; and
Figure 13 is a perspective view of an anti ehatter spring plate which forms part of the disc brake shown in figures 8 to 12.
The floating type disc brake shown in figures 1 to 7 comprises a fixed member 13 which includes a pair of U-shaped torquereceiving portions 11 and 12 spaced apart circumferentially of a disc 1 to be braked.
Each of the portions 11 and 12 straddles the outer periphery of the disc and has an inside arm 9 and an outside arm 10 disposed respectively on opposite sides of the disc, the arms 9 and 10 being interconnected by a linking section 21. The arms 9 of the two portions 11 and 12 are interconnected by a coupling beam 9. The fixed member 13 is secured to a fixed part of a vehicle by mounting holes 20, the disc 1 being rotatable with a road wheel of the vehicle.
A pair of friction pads 2 and 3 are disposed on opposite sides of the disc 1 and are slidably guided by the fixed member 13 for axial movement relative to the disc. More particularly, each of the pads 2 and 3 includes a backing plate 27 having protrusions 26 extending circumferentially of the disc from opposite upper corners thereof, and .these protrusions are hung on shoulders 28 provided on the arms 9, 10 of the torque 'receiving portions 11 and 12.
A caliper member 8 is alsd. mounted on the fixed member 13 for movement axially of the disc, and comprises. an inside arm section 5 and an outside arm section 7 disposed on opposite sides of the disc and a bridge section 6 which interconnects the arm sections 5 and 7 and which straddles the outer periphery of the disc. The caliper member 13 is mounted on the fixed member by means of a pin 23 which is received - directly and slidably in a guide hole 22 in the torque-receiving portion
12, as shown in Figure 5, and by means of a pin 23 covered by a rubber envelope 24 which is slidably inserted in a guide hole 22 in the torque-receiving portion 11, as shown in
Figure 6. The pins 23 are secured to the inside arm section 5 of the caliper member by respective screws 25.
The inside arm section 5 of the caliper member has a cylinder formed therein in which a piston 4 is slidably received in a fluid-tight manner. The friction pad 2 is mounted on the piston 4, the friction pad 3 being mounted directly on the outside arm section 7 of the caliper member. In order to operate the disc brake, hydraulic pressure medium such as oil is supplied to the cylinder to move the piston 4 to the left, as viewed in
Figure 3, thereby urging the friction pad 2 into engagement with the facing surface of the disc 1. This in turn produces a reaction force which moves the caliper 8 to the right to bring the friction pad 3 into engagement with the opposite surface of the disc. The disc is thus braked, a major part of its torque being absorbed by the pads 2 and 2 and being transmitted to the torque-receiving portion 11, 12 on the trailing side of the fixed member 13 with respect to the direction of rotation of the disc.
As can be seen to advantage in Figure 4, a pair of anti-chatter spring plates 17 are inserted between the fixed member 13, the caliper member 8 and the friction pads 2 and 3 so as to engage these parts elastically. One of the spring plates 17 is shown in detail in
Figure 7, it being understood that the other plate 17 is similar thereto. The illustrated anti-chatter plate 17 is cross-shaped and comprises an arm 15 which extends circumferentially of the disc and which elastically engages an underside surface 29 of the caliper member bridge section 6, and an arm 16 which also extends circumferentially of the disc (i.e. parallel to the arm 15) and which elastically engages a respective one of the torque-receiving portions 11 and 12 of the fixed member 13. More particularly, the arm 16 engages a disc-facing surface 30 of the linking section 21 of the torque receiving portion and locates between the arms 9 and 10 of the latter.
The anti-chatter plate 17 also comprises a pair of arms 14 which extend axially of the disc (i.e. perpendicularly of the arms 15 and 16) and which each engage one of the protrusions 26 on a respective one of the friction pads. The elastic reaction force generated by the engagement of the arm 15 with the caliper member on the one hand and by engagement of the arm 16 with the fixed member on the other causes the arms 14 to urge the friction pads radially inwardly of the disc and thereby urge the protrusions 26 into engagement with the shoulders 28. The arms 14 haye a longitudinal corrugation 18 impressed therein to prevent them from being substantially bent in the lengthwise direction thereof by the above-described reaction force, and it is this corrugation which presses against the protrustions 26 on the friction pads.
During application or release of the brake, the friction pads and the caliper member are caused to move relative to the fixed member. In order to prevent the antichatter plates 17 from being frictionally moved axially of the disc by such movement, the arms 16 thereof have a- width a which is equal to the spacing between the confronting surfaces of the arms 9 and 10 of the respective torque-receiving portions 11, 12. Where the torque-receiving portions are made by casting and the confronting surfaces of the arms 9 and 10 are not finished to provide a uniform spacing therebetween, it is preferred to provide resilient tags 31 on opposite longitudinal edges of the arm 16 of each antichatter plate 17, such that the distance between the tags 31 gradually increases towards their ends. This enables the plate 17 to be elastically inserted in place between the arms of the respective torque receiving portion.
Because the anti-chatter spring plates 17 are held against movement relative to the fixed member 13 axially of the disc, it is possible to utilise the arms 14 to detect reduction in thickness of the friction pads due to wear by comparing the separation of the pads with the distance between the ends of the arms 14. Preferably, marks are provided at suitable points on the arms 14 which indicate the need for pad replacement when the backing plates 27 come to the marked positions. In place of the above-described marks on the arms 14, it may be convenient to utilise the separation of the longitudinal edges of the arm 15 axially of the disc to detect wear of the friction pads, in which case the width b of the arm 15 is selected for this purpose. Replacement of the friction pads can be readily performed by unscrewing one of the screws 25 from the associated pins 23, turning the caliper member 8 about the other pin 23, and drawing out the anti-chatter plates 17 in the circumferential direction of the disc.
The floating type disc brake shown in
Figures 8 to 13 is generally similar to that described above with reference to Figures 1 to 7, similar parts being accorded the same reference numerals, but differs therefrom mainly in the manner in which the caliper member 8 is supported for movement axially of the disc. More specifically, the caliper member is supported on the- friction pads 2 and 3, as will now be explained.
The backing plates 27 of the friction pads are now provided with recesses 32 in their ends in the circumferential direction of the disc, these recesses being engaged respectively by the shoulders 28 on the arms 9 and 10 of the torque-receiving portions 11 and 12 so that the friction pads are slidably guided for movement only axially of the disc. The friction pad 2 has four projections 33 on the rear surface of its backing plate 27 (i.e. on a surface thereof facing away from the disc) which are fixedly engaged with the inner periphery of the piston 4, the latter being hollow. Similar projections 33 on the rear of the backing plate 27 of the friction pad 3 are fixedly inserted into holes in the outside arm portion 7 of the caliper member 8. The caliper member is supported by these projections 33 such that it is not movable radially or circumferentially of the disc, only axially thereof.
Because there are gaps between the shoulders 28 and the recess 32, the friction pads are only loosely mounted on the fixed member 13. Similarly, the caliper member is only loosely mounted on the friction pads.
because of gaps between the projections 33 and the piston 4 or the holes in the caliper member arm section 7. Undesirable effects due to the presence of these gaps are overcome by the presence of the anti-chatter spring plates 17 between the fixed member, the caliper member and the friction pads.
The plates 17 are generally similar to those described above in relation to Figure 7, one of the plates being shown in detail in Figure 14. However, each plate 17 now has an embossed portion 34 at an inner end of the arm 15. As shown in Figure 12, the embossed portion 44 elastically abuts against a respective end surface 35 of the caliper member 8, and by a reaction force longitudinal edges 36 of the arms 14 remote from the arm 15 are urged into engagement with surfaces 37 of the arms 9 and 10 of the respective torquereceiving portion 11, 12 which face the caliper member. The resiliency of the plate 17 in this function is provided mainly by the corrugation 18 formed longitudinally of the arms 14.
The two plates 17 thus serve to support the caliper member elastically in the circumferential direction of the disc, which is a major feature of this embodiment.
It is to be appreciated that the anti-chatter spring plates 17 can provide various desirable operational effects on the floating type disc brake, in addition to the simplicity of structure thereof, and is very effective in practical use.
WHAT WE CLAIM IS;
1. A floating type disc brake comprising a pair of friction pads disposed on opposite sides of a disc to be braked for respective engagement with opposed surfaces thereof; a fixed member slidably guiding the friction pads for movement axially of said disc, a caliper member straddling the disc and supported by the fixed member or the friction
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (22)
1. A floating type disc brake comprising a pair of friction pads disposed on opposite sides of a disc to be braked for respective engagement with opposed surfaces thereof; a fixed member slidably guiding the friction pads for movement axially of said disc, a caliper member straddling the disc and supported by the fixed member or the friction
pads both for sliding movement axially of said disc and against movement radially of said disc, one of the friction pads being fitted to the caliper member, the other being connected to the caliper member through pressure means operable to urge said other friction pad towards the disc, and a pair of resilient members interposed between the caliper member, the fixed member and the friction pads, each resilient member engaging against the caliper member to urge the friction pads radially inwardly of said disc.
2. A disc brake as claimed in Claim 1, wherein the caliper member is urged radially outwardly of said disc by a reaction force generated by the pressure of the resilient members against the friction pads.
3. A disc brake as claimed in Claim 1 or 2, wherein each resilient member is in the form of a cross-shaped spring plate having a first arm extending circumferentially of the disc and engaging the fixed member, a second arm extending circumferentially of the disc and engaging the caliper member, and a pair of further arms extending generally axially of the disc and engaging the friction pads respectively.
4. A disc brake as claimed in Claim 3, wherein the fixed member includes a pair of
U-shaped torque-receiving portions spaced apart circumferentially of the disc, each torque-receiving portion having two arms disposed respectively on opposite sides of the disc, and the first arm of each spring plate is sized so as to locate between and engage the arms of a respective one of the torquereceiving portions so as to hold the spring plate against movement axially of the disc.
5. A disc brake as claimed in Claim 3 or 4, wherein the width of the second arm of at least one of the spring plates is used to indicate wear of the friction pads.
6. A disc brake as claimed in Claim 3 or 4, wherein said pair of further arms of at least one of the spring plates have marks thereon for indicating wear of the friction pads.
7. A disc brake as claimed in any one of
Claims 3 to 6, wherein said further pair of arms of each spring plate have a longitudinally extending corrigation formed therein to improve their rigidity.
8. A disc brake as claimed in Claim 7, wherein the friction pads are engaged by said longitudinally-extending corrigation in each spring plate.
9. A disc plate as claimed in any one of
Claims 3 to 8, -whetein said pair of further arms of each spring- plate are corrugated to impart resiliency to the first and second arms.
10. A disc brake as claimed in any one of
Claims 3 to 9, wherein the second arm of each spring plate has a protrusion which engages a respective end of the caliper member in the circumferential direction of the disc.
-
11. A disc brake as claimed in any preceding claim, wherein the resilient members hold the caliper member against movement circumferentially of the disc.
12. A floating type disc brake comprising a fixed member having a pair of U-shaped torque-receiving portions spaced apart circumferentially of a disc to be braked, each torque-receiving portion having two arms disposed respectively on opposite sides of the disc, a pair of friction pads disposed on opposite sides of said disc for respective engagement with opposed surfaces thereof; ends of the pads in the circumferential direction of said disc being slidably guided respectively by the arms of the U-shaped torque-receiving portions such that the pads are movable axially of said disc, a caliper member supported by the fixed member or the friction pads both for sliding movement axially of said disc and against movement radially of said disc, the caliper member including a pair of arm sections disposed respectively on opposite sides of the disc and a bridge section interconnecting the arm sections, one of the arm sections having a respective one of the friction pads fitted thereto, pressure means being operatively disposed between the other of the arm sections and the other friction pads and being operable to urge said other friction pad towards said disc, and a pair of anti-chatter spring plates interposed between the caliper member and the friction pads, each spring plate having a first portion engaging a respective one of the U-shaped torquereceiving portions of the fixed member, a second portion engaging the bridge section of the caliper member, and a pair- of arms respectively engaging radially outer portions of the friction pads, the spring plates acting against the caliper member to urge the friction pads radially inwardly of said disc.
13. A disc brake as claimed in Claim 12, wherein the caliper member is urged radially outwardly of said disc by a reaction force generated by the pressure of the resilient members against the friction pads.
14. A disc brake as claimed in Claim 12 or 13, wherein each spring plate is cross-shaped with said first and second portions thereof extending circumferentially of the disc and said pair of arms thereof extending generally axially of said disc.
15. A disc brake as claimed in Claim 12, 13 or 14, wherein the first portion of each spring plate is sized so as to locate between and engage the arms of a respective one of the torque-receiving portions so as to hold the spring plate against movement axially of the disc.
16. A disc brake as claimed in any one of
Claims 12 to 15, wherein the width of the second portion of at least one of the spring plates is used to indicate wear of the friction pads.
17. A disc brake as claimed in any one of
Claims 12 to 15, wherein said pair of arms of at least one of the spring plates have marks thereon for indicating wear of the friction pads.
18. A disc brake as claimed in any one of
Claims 12 to 17, wherein said pair of arms of each spring plate have a longitudinallyextending corrugation formed therein to improve their rigidity.
19. A disc brake as claimed in any one of
Claims 12 to 18, wherein the friction pads are engaged by said longitudinally-extending corrugation in each spring plate.
20, A disc brake as claimed in any one of
Claims 12 to 19, wherein said pair of further arms of each spring plate are corrugated to impart resiliency to the first and second portions thereof.
21. A disc brake as claimed in any one of
Claims 12 to 20, wherein the second portion of each spring plate has a protrusion which engages a respective end of the bridge section of the caliper member so that the caliper member is thereby held against movement circumferentially of the disc.
22. A floating type disc brake substantially as hereinbefore described with reference to
Figures 1 to 7 or Figures 8 to 13 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1736476A JPS52100058A (en) | 1976-02-18 | 1976-02-18 | Floating disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1576503A true GB1576503A (en) | 1980-10-08 |
Family
ID=11941966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB641777A Expired GB1576503A (en) | 1976-02-18 | 1977-02-16 | Floating type disc brake |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS52100058A (en) |
| BR (1) | BR7700970A (en) |
| CS (1) | CS200209B2 (en) |
| GB (1) | GB1576503A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2147673A (en) * | 1983-10-06 | 1985-05-15 | Teves Gmbh Alfred | Floating caliper spot-type disc brake |
| WO2008043772A1 (en) * | 2006-10-10 | 2008-04-17 | Continental Teves Ag & Co. Ohg | Disk brake and brake lining for the same |
| EP3019764A4 (en) * | 2013-07-12 | 2017-03-22 | Bendix Spicer Foundation Brake LLC | Brake pad retention device and method |
| EP3423731A1 (en) * | 2016-03-03 | 2019-01-09 | Bendix Spicer Foundation Brake LLC | Disc brake and brake pad set |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5298869A (en) * | 1976-02-12 | 1977-08-19 | Sumitomo Electric Ind Ltd | Floating type disc brake |
-
1976
- 1976-02-18 JP JP1736476A patent/JPS52100058A/en active Pending
-
1977
- 1977-02-16 GB GB641777A patent/GB1576503A/en not_active Expired
- 1977-02-16 BR BR7700970A patent/BR7700970A/en unknown
- 1977-02-18 CS CS109977A patent/CS200209B2/en unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2147673A (en) * | 1983-10-06 | 1985-05-15 | Teves Gmbh Alfred | Floating caliper spot-type disc brake |
| WO2008043772A1 (en) * | 2006-10-10 | 2008-04-17 | Continental Teves Ag & Co. Ohg | Disk brake and brake lining for the same |
| EP3019764A4 (en) * | 2013-07-12 | 2017-03-22 | Bendix Spicer Foundation Brake LLC | Brake pad retention device and method |
| EP3423731A1 (en) * | 2016-03-03 | 2019-01-09 | Bendix Spicer Foundation Brake LLC | Disc brake and brake pad set |
| EP3423731A4 (en) * | 2016-03-03 | 2020-05-20 | Bendix Spicer Foundation Brake LLC | Disc brake and brake pad set |
Also Published As
| Publication number | Publication date |
|---|---|
| BR7700970A (en) | 1977-10-18 |
| JPS52100058A (en) | 1977-08-22 |
| CS200209B2 (en) | 1980-08-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |