CN1064116C - Dish brake - Google Patents
Dish brake Download PDFInfo
- Publication number
- CN1064116C CN1064116C CN95107099A CN95107099A CN1064116C CN 1064116 C CN1064116 C CN 1064116C CN 95107099 A CN95107099 A CN 95107099A CN 95107099 A CN95107099 A CN 95107099A CN 1064116 C CN1064116 C CN 1064116C
- Authority
- CN
- China
- Prior art keywords
- friction
- clamp
- discal rotor
- padss
- hanger pin
- 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 - Fee Related
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- Braking Arrangements (AREA)
Abstract
Provided is to prevent chattering of a friction pad further to decrease a load as small as possible applied to a hanger pin, by simplifying the hanger pin to reduce a number of part items and reducing an assembly man-hour, in a disk brake providing a pad spring between a pair of the friction pads supported by the hanger pin and calipers. A friction pad 32 is supported by a single hanger pin 38, to provide in a pad spring 40 a turn in/turn out side spring part 40b, 40c of energizing the friction pad 32 in a turn in/turn out side of a disk rotor 24, and angular moment generated in the friction pad 32 by the turn in side spring part 40c is set smaller than angular moment generated in the friction pad by the turn in side spring part 40b. In a member fixedly connected to a caliper 21 or caliper 21, a pad contact part 43 receiving the friction pad 32 in the turn out side of the disk rotor 24 is provided.
Description
The present invention relates to a kind of dish brake, this dish brake has discal rotor, clamp the clamp of discal rotor periphery, be configured in a pair of friction pads between discal rotor bi-side and clamp respectively, have the axis parallel with the discal rotor spin axis and be arranged on being used on the clamp support above-mentioned two friction padss hanger pin, two friction padss toward the rotating center direction pushing of discal rotor and be arranged on packing spring between two friction padss and the clamp.
Dish brake in the prior art for example has Japanese patent gazette to open disclosed for clear 63-146234 number a kind of in fact, is well known.
In the above-mentioned this known dish brake, the friction pads of discal rotor both sides is being supported by a pair of hanger pin that is located on the clamp, and the elastic force of packing spring acts on two friction padss at the central part between two hanger pins.Consider that from the angle that reduces number of parts and assembly working amount the most handy hanger pin supports two friction padss, must prevent that at this moment the load that rocks and avoid being added on the hanger pin because of retarding torque is feasible of two friction padss from becoming big.
The present invention makes in view of the above problems, and its purpose is to provide a kind of and adopts single hanger pin in order to reduce number of parts and assembly working amount, also can prevent that friction pads from rocking, reducing to be added in the dish brake of loading on the hanger pin.
In order to achieve the above object, dish brake of the present invention has discal rotor, clamp the clamp of this discal rotor periphery, be configured in a pair of friction pads between discal rotor bi-side and clamp respectively, axis parallel with the spin axis of discal rotor and be located at being used on the clamp support the hanger pin of above-mentioned two friction padss and be located between two friction padss and the clamp with the packing spring of two friction padss towards discal rotor rotating center direction pushing, it is characterized in that, the hanger pin of single supporting two friction pads peripheries is set on clamp, on packing spring, be provided with and change the side spring over to and produce the side spring, changing the side spring over to pushes the past discal rotor rotating center direction of a side of two friction pads circumferencial directions in the side that changes over to of discal rotor, producing the side spring pushes the opposite side of two friction pads circumferencial directions in the side that produces of discal rotor towards discal rotor rotating center direction, and set to make by this produce side spring portion produce on two friction padss around the hanger pin torque less than by change that side spring portion produces on two friction padss around the hanger pin torque, clamp or with parts that these clamp are fixedlyed connected on, be provided with the pad abutting part that side is accepted two friction padss that produces at discal rotor.
Owing to support a pair of friction pads with single hanger pin, so can reduce number of parts and assembly working amount.Because changing the side spring over to and produce not waiting around the hanger pin torque that the side spring produces on two friction padss of packing spring makes that effect is strong on two friction padss, this power makes interior all sides of friction pads rotate in the side that produces of discal rotor.In the side that produces of discal rotor, two friction padss are accepted by the pad abutting part, therefore, make the friction pads location, and can avoid acting on the hanger pin because of the excessive loads that retarding torque causes.
Fig. 1 is at the biopsy cavity marker devices profile that is installed in the dish brake under the motor bike front-wheel state.
Fig. 2 is the 2-2 line amplification profile diagram of Fig. 1.
Fig. 3 is the 3-3 line amplification profile diagram of Fig. 1.
Fig. 4 is the 4-4 line amplification profile diagram of Fig. 2.
Fig. 5 is the 5-5 line amplification profile diagram of Fig. 2.
Fig. 6 is the profile diagram of packing spring.
Fig. 7 is the view along arrow among Fig. 67.
Fig. 8 is the view along arrow among Fig. 68.
Fig. 9 is the profile of clamp fagging.
Figure 10 is the enlarged view of position among Fig. 1 " 10 ".
Figure 11 is the 11-11 line view along Fig. 1.
Among the figure, 20～as the clamp fagging of clamp connected element, 21～clamp, 24～discal rotor, 32
1, 32
2～friction pads, 38～hanger pin, 40～packing spring, 40b～change over to side spring portion, 40c～produce side spring portion, 43,45～pad abutting part, B
0～dish brake.
An embodiment when the present invention is used for the motor bike front wheel brake is described with reference to the accompanying drawings.
Fig. 1 to Figure 11 represents one embodiment of the present of invention.
With reference to Fig. 1, for example, on the motor bike front fork 15 of small motor cycle type, its lower end integrally forms fagging 16 earlier, is fixing fagging 17 in the welding of its underpart rear side.Supporting dish brake B
0The wheel shaft 18 of clamp fagging 20 and front-wheel (figure does not show) of clamp 21 fastening and is connected with a fagging 16, pass through bolt 19 simultaneously and fixedly connected with another fagging 17.
Again in the lump with reference to Fig. 2 to Fig. 5, in interior side one side along the axial clamp fagging 20 of wheel shaft 18, discal rotor 24 anchors on the front-wheel.Clamp 21 have a vice body 22, and the main portion of vice body 22 is configured in the outer side surface of discal rotor 24 in opposite directions.This vice body 22 is bearing on the clamp fagging 20 and can moves towards the direction that is parallel to wheel shaft 18.That is, on vice body 22, fixed bearing towards clamp fagging 20 side openings round-ended cylinder shape rubber system guiding parts 25 are arranged, wearing on vice body 22 has an end pilot hole 26 towards clamp fagging 20 side openings; On clamp fagging 20, be provided with and be entrenched in the cotter bolt 27 in the guide element 25 slidably and be entrenched in the interior cotter bolt 28 of pilot hole 26 slidably.Be provided with dustproof sheath 29 at the opening end of guide element 25 and 27 of cotter bolts, be provided with dustproof sheath 30 at the opening end and 28 of the cotter bolts of pilot hole 26.
On vice body 22, along discal rotor 24 radial directions and than its outer periphery position more outwardly, be provided with the axial inboard connection wrist 22a that extends integratedly towards wheel shaft 18, connect on the front end of wrist 22a at this, fixing that by a pair of connecting bolt 31,31 discal rotor 24 peripheral parts are clipped in wrist lock 23 in the space between itself and the vice body 22.
Disposing friction pads 32 outside the peripheral part of discal rotor 24 and between the vice body 22
1, between the peripheral part inner face of discal rotor 24 and wrist lock 23, disposed friction pads 32
2Two friction padss 32
1, 32
2Have back veneer 33 respectively, change side liner 34 over to and produce side liner 35.Changing side liner 34 over to is in the side that changes over to along the discal rotor 24 that rotates on the sense of rotation 36 shown in Fig. 4 and Fig. 5 arrow, relatively is attached on the back veneer 33 with discal rotor 24; Produce side liner 35 and be discal rotor 24 produce side and discal rotor 24 relatively is attached on the back veneer 33.Consider when braking friction pads 32
1, 32
2The degree of crimping discal rotor 24, to produce side stronger at the side ratio that changes over to of discal rotor 24, impartial substantially for the surface pressure that makes two liners 34,35, prevent the inclined to one side abrasion of liner 34,35, so set greatlyyer to the area that changes side liner 34 over to than the area that produces side liner 35.
As shown in Figure 4 and Figure 5, changing side over to and producing side at discal rotor 24, on back veneer 33, be provided with the semicircular protrusions 33a, the 33b that give prominence to towards two liners 33,34, changing the side end that changes over to of side liner 34 over to, be provided with the recess 34a of partly chimeric teat 33a, produce the side end that produces of side liner 35, be provided with the recess 35a of chimeric teat 33b.Like this, when two liners 34,35 are adjacent to, just can correctly make two liners, 34,35 location on back veneer 33.In addition, in order to show the abrasion amount of two liners 34,35, be before after being attached to two liners 34,35 on the back veneer 33, on two liners 34,35, process groove again and be used for showing; And in the present invention, above-mentioned teat 33a, 33b and the inserted structure of recess 34a, 35a have as the effect that shows two liners, 34,35 abrasion amount indicators, need not to process as described above groove, therefore can reduce workload.
At two friction padss 32
1, 32
2In the peripheral part of back veneer 33, in summary central position, be respectively equipped with the support 33c of protuberance laterally along its circumferencial direction, on these supports 33c, offering bearing hole 37 respectively.And being provided with single hanger pin 38 at vice body 22 and 23 of wrist lock, this hanger pin 38 passes two friction padss 32
1, 32
2Bearing hole 37.That is, at summary central part along discal rotor 24 all directions, two friction padss 32
1, 32
2Peripheral part by single hanger pin 38 supporting that is located on the clamp 21.
In the lump with reference to Fig. 6 to Fig. 8, at two friction padss 32
1, 32
2Be provided with packing spring 40 between the wrist 22a with being connected of clamp 21, this packing spring 40 is two friction padss 32
1, 32
2Towards the rotating center direction of discal rotor 24, i.e. wheel shaft 18 1 thrusters are pressed.
This packing spring 40 have with the support plate 40a that is connected wrist 22a butt of clamp 21, be connected with the side of support plate 40a change the side spring 40b of portion over to and produce the side spring 40c of portion with the opposite side of support 40a is connected with.Change the side spring 40b of portion over to and change side over to two friction padss 32 at discal rotor 24
1, 32
2A circumferential side towards the pushing of the rotating center direction of discal rotor 24; Produce the side spring 40c of portion and produce side two friction padss 32 at discal rotor
1, 32
2Circumferential opposite side towards the pushing of the rotating center direction of discal rotor 24.Change the side spring 40b of portion over to and produce side spring 40c of portion and two friction padss 32
1, 32
2The outer circumferential side butt and clamp support 33c.And changing the side spring 40b of portion over to and producing and be provided with opening 41,42 on the side spring 40c of portion, the opening area of opening 42 is greater than the opening area of opening 41.Like this, just can set the spring load that produces the side spring 40c of portion for littler than the spring load that changes the side spring 40b of portion over to.
Like this, owing to making the side liner spring 40 that changes over to act on two friction padss 32 at discal rotor 24
1, 32
2On spring force than acting on two friction padss 32 in the side that produces of discal rotor
1, 32
2Spring force big, therefore at two friction padss 32
1, 32
2Last not waiting around hanger pin torque 38 of producing makes two friction padss 32
1, 32
2The clockwise direction of pressing Fig. 5 rotates around hanger pin 38, and in addition, under the motor bike forward travel state, the effect of dragging towards disc rotor 24 during because of braking also makes two friction padss 32
1, 32
2The clockwise direction of pressing Fig. 5 rotates around hanger pin 38.On wrist lock 23, be provided with that pad bears portion 43 and pad bears portion 44 as the constituting component of clamp 21.Pad bears portion 43 and bears a friction pads 32 in the side that produces of discal rotor 24
1The part of close radial direction inboard, pad bears portion 44 and bears friction pads 32 in the side that changes over to of discal rotor 24
1The part of close radial direction inboard, bear friction pads 32 between the portion 44,43 at pad
1Located.As with the clamp fagging 20 of clamp 21 fixed connecting parts on, as shown in Figure 9, be provided with that pad bears portion 45 and pad bears portion 46.Pad bears portion 45 and bears another friction pads 32 in the side that produces of discal rotor 24
2The part of close radial direction inboard, pad bears portion 46 and bears friction pads 32 in the side that changes over to of discal rotor 24
2The part of close radial direction inboard, bear friction pads 32 between the portion 46,45 at pad
2Located.
On vice body 22, offer corresponding to a friction pads 32
1 End casing bore 47 arranged, piston 49 is entrenched in the casing bore 47 slidably, forms hydraulic chamber 48 between the closed end of piston 49 and casing bore 47.Piston 49 is facing to friction pads 32
1Back veneer and can with its butt.
Referring to Fig. 1, on vice body 22, integrally be provided with master cylinders 50.In this master cylinders 50, chimeric slidably piston 51, the front end of piston 51 faces the oil pressure generation chamber 52 that communicates with hydraulic chamber 48.In oil pressure generation chamber 52, be provided with the backspring 53 of piston 51 to pusher.
On vice body 22, be positioned at place, master cylinders top and be provided with drop tank 54, as shown in figure 10, the top in this drop tank 54 is installed with barrier film 55 and dividing plate 56.At the upper end portion of drop tank 54 internal surface, be provided with ring-type telescoping groove 57.Embedding is with the upper end open portion of synthetic resin cap 58 inaccessible drop tanks 54 that has the chimeric pawl 58a of ring-type, this chimeric pawl 58a suppress chimeric with telescoping groove 57.Therefore, also need not the brake fluid changed even can in drop tank 54, deposit long-term use.Owing to do not need to open and close continually cover 58, therefore, be installed on the drop tank 54 also no problemly cover 58 with above-mentioned such stubborn structure, as if comparing, can reduce number of parts and assembly working amount with the open-close structure of employing screw thread etc.
With reference to Figure 11, on vice body 22, fixing the fulcrum 61 of parallel axes in wheel shaft 18 in the lump, push strut 62 and brake arm 63 are rotatably supported on this fulcrum 61.
The lower end of push strut 62 is relative with piston 51 rear ends in being entrenched in master cylinders 50 slidably.Be provided with backspring 64 at vice body 22 and 62 of push strut, this backspring 64 pushes away the lower end of push strut 62 toward the direction of leaving piston 51 rear ends, that is to say, the counterclockwise direction of push strut 62 towards Fig. 1 pushed away.The limit that push strut 62 is rotated along counterclockwise direction among Fig. 1 is when being the upper end of push strut 62 and drop tank 54 butts.
In the upper end of push strut 62, connecting the base end part of regulating bolt 65, regulating bolt 65 can be around the rotational that is parallel to fulcrum 61.End bearing the coupling shaft 66 of parallel axes in fulcrum 61 on brake arm 63, and this coupling shaft 66 can be around its rotational.Above-mentioned adjusting bolt 65 can move and runs through coupling shaft 66 along its axial direction.Regulating on the part of stretching out from coupling shaft 66 of bolt 65, screw thread is twisted the adjusting nut 67 that is closing with coupling shaft 66 butts, 66 of the cardinal extremity of regulating bolt 65 and coupling shafts, Regulation spring 68 is being set compression.
According to above-mentioned structure, when brake arm 63 clockwise direction in Fig. 1 rotates, make push strut 62 also rotate by Fig. 1 clockwise direction, promote pistons 51 by push strut 62, thereby from master cylinders 50 output hydraulic pressure, dish brake B
DJust make brake.
With reference to Fig. 1, figure do not show be located at steering on brake rod on, connecting the braking cable of forming by outer tube sleeve 69 and inner rope 70 71, the lower end of outer tube sleeve 69 be fixedly connected on vice body 22 bottom all-in-one-piece supports 72 on.Stretch out from outer tube sleeve 69 lower ends and be connected with the lower end of brake arm 63 by the inner rope 70 that dirt-proof boot covers.
In order to protect braking cable 71 and brake arm 63 not to be damaged by splashes such as handstones, on the fagging 16 of front fork 15 lower ends, the backplate 74 that extends is being fixed in welding downwards, and this backplate 74 can increase dish brake B
DReliable in action.
Below, the effect of present embodiment is described, because at summary central part along discal rotor 24 circumferencial directions, two friction padss 32
1, 32
2Peripheral part by single hanger pin 38 supporting, so, the workload in the time of can reducing number of parts and assembling dish brake.
On packing spring 40, be provided with and change the side spring 40b of portion over to and produce the side spring 40c of portion.Change the side spring 40b of portion over to and change side over to two friction padss 32 at discal rotor 24
1, 32
2Circumferencial direction one side towards the pushing of the rotating center direction of discal rotor 24, produce the side spring 40b of portion and produce side friction pads 32 at discal rotor
1, 32
2The circumferencial direction opposite side towards the pushing of the rotating center direction of discal rotor 24, and set the spring load that produces the side spring 40c of portion forr a short time than the spring load that changes the side spring 40b of portion over to.Therefore make at two friction padss 32 by two 40b of spring portion, 40c
1, 32
2Last not waiting around the hanger pin torque of producing makes two friction padss 32
1, 32
2Towards the direction rotation of producing side shifting that makes all side direction discal rotors 24 in it.And, owing on the wrist lock 23 and clamp fagging 20 of clamp 21, be provided with in the side that produces of discal rotor 24 and bear two friction padss 32
1, 32
2 Pad abutting part 43,45, can avoid two pads 32
1, 32
2Rock, make two pads 32
1, 32
2The location, the excessive load action that can avoid simultaneously being produced by retarding torque is to single hanger pin.
Embodiments of the invention more than have been described in detail in detail, but the present invention is not limited to the foregoing description, in not exceeding claims record scope, can does various design alterations the present invention.
For example, bear two friction padss 32 in the side that produces of discal rotor 24
1, 32
2The pad abutting part also can only be located on the clamp 21.In addition, the spring load that changes the side spring 40b of portion over to and produce the side spring 40c of portion in the packing spring 40 is set for equal, supporting two friction padss 32
1, 32
2 Hanger pin 38 be located to depart from and produce side position from central part along discal rotor 24 circumferencial directions, also can produce torque differences.In addition, the present invention also is used for the trailing wheel dish brake of motor bike, also can be widely used in for motor vehicle dish brake.
According to above-mentioned the present invention, on clamp, be provided with the single hanger pin of supporting two friction pads peripheral parts; On packing spring, be provided with and change side spring portion over to and produce side spring portion, changing side spring portion over to pushes the rotating center direction of circumferencial direction one side of two friction padss towards discal rotor in the side that changes over to of discal rotor, producing side spring portion pushes the rotating center direction of the circumferencial direction opposite side of two friction padss towards discal rotor in the side that produces of discal rotor, must be than by change little that side spring portion produces on two friction padss around the hanger pin torque settings by producing side spring portion around the hanger pin torque what produce on two friction padss, clamp or with parts that these clamp are fixedlyed connected on, be provided with the pad abutting part that side is born two friction padss that produces at discal rotor, owing to have above-mentioned structure, therefore, available single hanger pin supports two friction padss, thereby number of parts and assembly working amount have been reduced, and can prevent rocking of two friction padss, the excessive load action that can also prevent to be produced by the braking square is to hanger pin.
Claims (1)
1. dish brake has: discal rotor (24), clamp the clamp (21) of this discal rotor (24) peripheral part, be configured in a pair of friction pads (32 between discal rotor (24) bi-side and clamp (21) respectively
1, 32
2), parallel axes is in the spin axis of discal rotor (24) and be located at being used on the clamp (21) and support two friction padss (32
1, 32
2) hanger pin (38) and be located at two friction padss (32
1, 32
2) and clamp 921) between and two friction padss (32
1, 32
2) towards the packing spring (40) of the rotating center direction of discal rotor (24) pushing; It is characterized in that, single supporting two friction padss (32 are set on clamp (21)
1, 32
2) hanger pin (38) of peripheral part; On packing spring (40), be provided with and change side over to two friction padss (32 at discal rotor (24)
1, 32
2) circumferencial direction one side towards the side spring portion (40b) that changes over to of the rotating center direction of discal rotor (24) pushing with produce side two friction padss (32 at discal rotor (24)
1, 32
2) the circumferencial direction opposite side towards the side spring portion (40c) that produces of the rotating center direction of discal rotor (24) pushing; Make at two friction padss (32 by producing side spring portion (40c)
1, 32
2) going up the torque settings around hanger pin (38) that produces must be than making at two friction padss (32 by changing side spring portion (40b) over to
1, 32
2) upward generation is little around hanger pin (38) torque; Clamp (21) or with parts (20) that these clamp (21) are fixedlyed connected on, be provided with in the side that produces of discal rotor 24 and bear two friction padss (32
1, 32
2) pad abutting part (43,45).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23756894A JP3366129B2 (en) | 1994-09-30 | 1994-09-30 | Disc brake |
| JP237568/94 | 1994-09-30 | ||
| JP237568/1994 | 1994-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1124828A CN1124828A (en) | 1996-06-19 |
| CN1064116C true CN1064116C (en) | 2001-04-04 |
Family
ID=17017247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95107099A Expired - Fee Related CN1064116C (en) | 1994-09-30 | 1995-06-26 | Dish brake |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3366129B2 (en) |
| CN (1) | CN1064116C (en) |
| TW (1) | TW266191B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4527910B2 (en) * | 2001-08-07 | 2010-08-18 | 日信工業株式会社 | Vehicle disc brake |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63146234U (en) * | 1987-03-18 | 1988-09-27 |
-
1994
- 1994-09-30 JP JP23756894A patent/JP3366129B2/en not_active Expired - Fee Related
-
1995
- 1995-05-25 TW TW84105293A patent/TW266191B/en active
- 1995-06-26 CN CN95107099A patent/CN1064116C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63146234U (en) * | 1987-03-18 | 1988-09-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3366129B2 (en) | 2003-01-14 |
| JPH08100828A (en) | 1996-04-16 |
| CN1124828A (en) | 1996-06-19 |
| TW266191B (en) | 1995-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |