CN1289833C - Waterproof structure of drum brake - Google Patents
Waterproof structure of drum brake Download PDFInfo
- Publication number
- CN1289833C CN1289833C CNB018234348A CN01823434A CN1289833C CN 1289833 C CN1289833 C CN 1289833C CN B018234348 A CNB018234348 A CN B018234348A CN 01823434 A CN01823434 A CN 01823434A CN 1289833 C CN1289833 C CN 1289833C
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- Prior art keywords
- mentioned
- drum brake
- type groove
- wheel hub
- outside
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- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
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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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
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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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/10—Drums for externally- or internally-engaging brakes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The present invention relates to a drum brake (20A) which is composed of a wheel hub (21), a brake panel (30) and a drum brake mechanism (40). A labyrinth mechanism (50) is used for sealing a gap (52) between the wheel hub and the brake panel. In the upper part of an axle [12] of the drum brake, the labyrinth mechanism is matched with a periphery surface (51) with the brake panel in a concave part (23). An outside labyrinth tank (53) and an inside labyrinth tank (54) are orderly arranged on the peripheral surface of the brake panel from the outside of the wide direction of the panel to the inside of the concave part. The sectional area [A1] of the outside labyrinth tank is smaller than the sectional area (A2) of the inside labyrinth tank.
Description
Technical field
The present invention relates to be equipped in the drum brake on the wheel in the vehicles such as motor bike, particularly can further improve as the wheel hub of rotary component with as the waterproof construction of the drum brake of the water-proof performance of the gap portion between the braking panel of on-rotatably moving part.
Background technique
In vehicles such as motor bike, adopt following car type more, that is, on wheel, equip drum brake, and utilize brake lever or brake petal that this drum brake is carried out brake operating.
As vehicle with this drum brake, known for example have a motor bike of being put down in writing in real public clear 62-12913 number, it utilizes as the recess of the wheel hub of rotary component and takes in drum brake mechanism, and utilize braking panel in the major component that supports the drum-type stopper mechanism, to stop up recess as on-rotatably moving part, utilize maze-type structure that the gap between wheel hub and the braking panel is sealed.
As the waterproof construction of this drum brake, known have a prior art shown in Figure 19.In addition, in order to be easy to compare, be the waterproof construction of the drum brake shown in the public clear 62-12913 of above-mentioned reality number to be changed and the structure shown about the waterproof construction of drum brake shown in Figure 19 with the present invention.
Figure 19 is the sectional view of the waterproof construction that is equipped on the drum brake on the wheel of expression prior art.Wheel 100 is made of the braking panel 104 that drum brake mechanism 102 is accommodated in the wheel hub 103 in the recess 101 and stop up recess 101 and support the major component of drum-type stopper mechanism 102.Braking panel 104 is made of following parts: the panel part 105 of stopping up recess 101, from the periphery auxiliary section 106 that panel part 105 is extended and cooperated with recess 101 in recess 101, be formed at outside mazy type groove 107 and inboard mazy type groove 108 on the outer surface of periphery auxiliary section 106, cap 109 that extends out from periphery auxiliary section 106 in the mode in the outside that covers wheel hub 103 and the drain opening 111 that is formed at cap 109 lower ends.
In the waterproof construction of this drum brake, because wheel hub 103 is in the high speed rotation of advancing of vehicle, so water such as rainwater are splashed under action of centrifugal force.Do not worry that water enters in the recess 101.But, owing in the carwash operation, do not have centrifugal action, so, unfavorable aspect waterproof.
Summary of the invention
The object of the present invention is to provide a kind of waterproof construction of drum brake, it further improves as the wheel hub of rotary component with as the water-proof performance in the gap between the braking panel of on-rotatably moving part, even in the carwash operation, waterproofing effect is also high.
According to the 1st feature of the present invention, a kind of waterproof construction of drum brake is provided, this drum brake is made of wheel hub with recess of taking in drum brake mechanism and the braking panel that stops up above-mentioned recess in the major component that supports the drum-type stopper mechanism, and utilize maze-type structure to sealing as the wheel hub of rotary component with as the gap between the braking panel of on-rotatably moving part, it is characterized in that
In the part that the ratio axletree of above-mentioned drum brake leans on, above-mentioned maze-type structure is that the outer circumferential face with above-mentioned braking panel is engaged in the above-mentioned recess, and on the outer circumferential face of this braking panel, sequentially have outside mazy type groove and inboard mazy type groove to the recess inboard, and make the sectional area of the sectional area of outside mazy type groove less than inboard mazy type groove from the panel width direction.
The inboard mazy type groove that the drainage capacity of the outside mazy type groove that sectional area is little is bigger than sectional area is little.The mazy type drill traverse is fashionable laterally from the outside for low amounts of water such as water droplet, and the water of immersion can be side flow under the draining road direction with outside mazy type groove, and then discharges to the outside.Therefore, the water that is immersed in outside mazy type groove promptly can be discharged to the outside.
On the other hand, the mazy type drill traverse is fashionable laterally from the outside for a large amount of water, forms full water state in the little outside mazy type groove of sectional area rapidly.The water that overflows from outside mazy type groove passes through adjacent inboard mazy type concentrated flow to downside, and then discharges to the outside.And the surface tension of the water that is full of in the mazy type groove outside utilizing stop up the gap between wheel hub and the braking panel, thereby the immersion of water is suppressed further.As a result, can prevent the immersion of water such as rainwater and clean water.
Like this, the formed water-proof performance of maze-type structure that the gap between wheel hub and the braking panel is sealed can be further improved, and the waterproofing effect in the carwash operation can be improved.
According to the 2nd feature of the present invention, in the waterproof construction of above-mentioned drum brake, the ratio axletree of above-mentioned drum brake by under part in, above-mentioned maze-type structure sequentially has outside mazy type groove and inboard mazy type groove from recess inboard, lateral, near the axletree height and position, also along the circumferential direction make 3 kinds of discharge structures continuous from foot, in these 3 kinds of discharge structure parts, bulkhead is extended to the diameter outside from above-mentioned braking panel
In the 1st discharge structure of upper/lower positions, the outer ribs by making the above-mentioned outside of clamping mazy type groove and the height of intermediate rib are minimum, and make the interval maximum between above-mentioned wheel hub and the above-mentioned bulkhead, thereby improve drainage performance,
In the 2nd discharge structure thereon, the outer ribs by making the above-mentioned outside of clamping mazy type groove and the height of intermediate rib are identical with above-mentioned the 1st discharge structure, and make little than above-mentioned the 1st discharge structure of interval between above-mentioned wheel hub and the above-mentioned bulkhead, thereby the drainage performance of making and sealing obtain balance
In the 3rd discharge structure thereon, outer ribs by making the above-mentioned outside of clamping mazy type groove and intermediate rib extend and than the height of above-mentioned 1 2nd discharge structures, and make little than above-mentioned the 1st discharge structure of interval between above-mentioned wheel hub and the above-mentioned bulkhead, thereby improve sealing.
In the 1st discharge structure of upper/lower positions, by reducing outer ribs and intermediate rib, and increase the interval between wheel hub and the bulkhead, can promptly discharge the water that is immersed in the outer inboard mazy type groove, so drainage performance is good.And, because aperture is bigger between outside mazy type groove and the inboard mazy type groove, so, can increase water is stored in capacity in the foot of outer inboard mazy type groove.Therefore, can guarantee the sealing of maze-type structure.
In the 2nd discharge structure thereon, by reducing outer ribs and intermediate rib, and since between outside mazy type groove and the inboard mazy type groove aperture bigger, so, can increase water is stored in capacity in the bottom of outer inboard mazy type groove.And, in the 2nd discharge structure, by making little than the 1st discharge structure of interval between wheel hub and the bulkhead, thereby the surface tension of the water in the bottom that is stored in outer inboard mazy type groove be can utilize, the sealing of maze-type structure and the balance of drainage performance guaranteed well.Therefore, can make the drainage performance that is immersed in the water in the outer inboard mazy type groove and the sealing of maze-type structure obtain balance.
In the 3rd discharge structure thereon, by making outer ribs and intermediate rib height, and the interval that makes wheel hub and bulkhead narrow than the 1st discharge structure, can improve the sealing of maze-type structure than 1 2nd discharge structures.And, in the 3rd discharge structure, by dwindling the interval of wheel hub and bulkhead, and utilize the surface tension of the water in the bottom that is stored in outside mazy type groove, can guarantee drainage performance.
Like this, the formed water-proof performance of maze-type structure that the gap between wheel hub and the braking panel is sealed can be further improved, and the waterproofing effect in the carwash operation can be improved.
According to the 3rd feature of the present invention, in the waterproof construction of above-mentioned drum brake, drum brake is the drum brake of motor bike, with above-mentioned braking panel spline be supported on the rear wheel fork of motor bike, when the part with above-mentioned braking panel extends out along rear wheel fork, when seeking between this extension and rear wheel fork to stop above-mentioned braking panel to rotate, the bulkhead that stops by the outer surface sputter of extension towards the water of above-mentioned maze-type structure is set on above-mentioned extension.
Can utilize bulkhead to stop by the outer surface sputter of extension towards the water of maze-type structure.Therefore, can not run into maze-type structure by the water of the outer surface sputter of extension.Like this, the formed water-proof performance of maze-type structure that the gap between wheel hub and the braking panel is sealed can be further improved, and the waterproofing effect in the carwash operation can be improved.
Being located at the peripheral part that bulkhead on the above-mentioned extension is preferably to the spoke flange that erects from above-mentioned wheel hub extends.Since can further suppress water by the outer surface sputter of extension the scope towards maze-type structure, so, can further improve water-proof performance.
Description of drawings
Fig. 1 is the wheel hub side view on every side of the 1st embodiment's of the present invention wheel;
Fig. 2 is the 2-2 line view of Fig. 1;
Fig. 3 is the side view of the formation of assembling braking panel on wheel hub shown in Figure 1;
Fig. 4 is the longitudinal side view of the formation of assembling braking panel on wheel hub shown in Figure 3;
Fig. 5 is the 5-5 line sectional view of Fig. 3;
Fig. 6 is the 6-6 line sectional view of Fig. 3;
Fig. 7 is the 7-7 line sectional view of Fig. 3;
Fig. 8 is the 8-8 line sectional view of Fig. 3;
Fig. 9 is the 9-9 line sectional view of Fig. 3;
Figure 10 is the view of the braking panel shown in Figure 3 seen from dorsal part;
Figure 11 is the 11-11 line sectional view of Figure 10;
Figure 12 is the 12-12 line sectional view of Figure 10;
Figure 13 is the 13-13 line sectional view of Figure 10;
Figure 14 is the 14-14 line sectional view of Figure 10;
Figure 15 is the 15-15 line sectional view of Fig. 3;
Figure 16 is the side view of the formation of assembling braking panel on the 2nd embodiment's of the present invention wheel hub;
Figure 17 is the 17-17 line sectional view of Figure 16;
Figure 18 is the view of the braking panel shown in Figure 16 seen from dorsal part;
Figure 19 is the sectional view of the waterproof construction that is equipped on the drum brake on the wheel of expression prior art;
Concrete form of implementation
Fig. 1 and Fig. 2 show around the 1st embodiment's of the present invention trailing wheel 20 of motor bike 10.
As shown in Figures 1 and 2, motor bike 10 has the axletree 12 of never illustrated vehicle body frame on rear side (left side among the figure) rear wheel fork that swings up and down 11 of extending and the rearward end of being located at rear wheel fork 11.This axletree 12 have by bearing 13,14 be set to rotatable wheel hub 21 and with the back braking panel 30 of wheel hub 21 adjacency.
In addition, the 1st embodiment's of Figure 1 and Figure 2 back braking panel 30 is braking panels of the present invention.
According to this wheel 20, drum brake mechanism 40 can be accommodated in the major component of also utilizing the back to brake 31 pairs of drum brake mechanisms 40 of panel part of panel 30 in the recess 23 of wheel hub 21 and support.The drum brake 20A of wheel 20 is made of following parts: as the wheel hub 21 of rotary component, and as the back braking panel 30 of on-rotatably moving part, the drum brake mechanism 40 between wheel hub 21 and back braking panel 30.
This drum brake mechanism 40 rotates break action axle 42 by utilizing break movement arm 46, and makes braking plate 44 hole enlargements, thereby utilizes the lining and the performance of the frictional force between the brake disc 43 braking action of braking plate 44.In addition, in the later figure of Fig. 3, omit drum brake mechanism 40 and showing.
And above-mentioned wheel 20 is as the wheel hub 21 of rotary component and the waterproof construction that seals as the gap between the back braking panel 30 of on-rotatably moving part with 50 pairs in mazy type mechanism.Below, mazy type mechanism 50 is elaborated.
As Fig. 3, Fig. 4 and shown in Figure 5, outer circumferential face that will back braking panel 30 is when promptly the outer circumferential face 51 of panel part 31 is engaged in the recess 23 of wheel hub 21, between recess 23 and panel part 31 gapped 52.
As Fig. 4 and shown in Figure 5, recess 23 is to have the circular port that internal diameter is the opening portion 23a of D1.Panel part 31 is that external diameter is the disk of D2, and its external diameter is less than the inside diameter D 1 of opening portion 23a.Gap 52 between the outer circumferential face 51 of the inner peripheral surface of opening portion 23a and panel part 31 is of a size of δ.This dimension delta is very little.
Because outer circumferential face 51 overall co-ordinations that make panel part 31 are in recess 23, so, can easily set the dimension delta in gap 52 less, and, thereby the external diameter weight reduction of back braking panel 30 can be reduced.And, even axletree 12 (with reference to figure 2) deflection and braking panel 30 in back is tilted a little a little also can suppress the change of the dimension delta in gap 52.
In addition, in above-mentioned prior art shown in Figure 19, the structure that to be cap 109 extend out from periphery auxiliary section 106 in the mode in the outside that covers wheel hub 103.Relative therewith, in the 1st embodiment, be not have cap 109 and the formation of outer circumferential face 51 overall co-ordinations in recess 23 that make panel part 31.Owing to there is not cap 109, the water that comes from the top can not immerse from the gap between cap 109 and the wheel hub 21.Water proofing property when therefore, having improved carwash.
The diameter at the end of outside mazy type groove 53 is D3.The diameter at the end of inboard mazy type groove 54 is D4 and less than the diameter D3 at the end of outside mazy type groove 53.Leaning among the last part R1 than axletree bearing hole 33 (that is, above-mentioned axletree 12 shown in Figure 1), the groove depth H1 of outside mazy type groove 53 is less than the groove depth H2 of inboard mazy type groove 54.The groove width of outside mazy type groove 53 and the groove width of inboard mazy type groove 54 are roughly the same.Therefore, the sectional area A1 of outside mazy type groove 53 is less than the sectional area A2 of inboard mazy type groove 54.
In addition, groove depth H1 also is the height of clamping outside mazy type groove 53 outer ribs 55 and intermediate rib 56.Inboard mazy type groove 54 is the grooves by intermediate rib 56 and interior side rib 57 clampings.
As Fig. 3, Fig. 6～shown in Figure 9, (promptly than axletree bearing hole 33, above-mentioned axletree 12 shown in Figure 1) by under part in, near the height and position of (axletree 12) the scope R2 from foot to axletree bearing hole 33, above-mentioned mazy type mechanism 50 along the circumferential direction has 3 kinds of drainage mechanisms (that is discharge structure) 61,62,63 continuously.Back braking panel 30 has the bulkhead 65 that extends to the diameter outside from panel part 31.
The cross section of the 1st drainage mechanism 61 of upper/lower positions has been shown among Fig. 6, the cross section of the 2nd drainage mechanism 62 has been shown among Fig. 7, the cross section of the 3rd drainage mechanism 63 has been shown among Fig. 8, the cross section of maze-type structure on the top of the 3rd drainage mechanism 63 has been shown among Fig. 9.
As Fig. 3, Fig. 6, Figure 10 and shown in Figure 11, the 1st drainage mechanism 61 of upper/lower positions is following discharge structure: the height H 11 of outer ribs 55 and intermediate rib 56 is minimum, the interval W1 maximum of wheel hub 21 and bulkhead 65.The groove depth of outer inboard mazy type groove 53,54 is little.Like this, lead to outside big draining road 66, can improve the drainage performance of the 1st drainage mechanism 61 of upper/lower positions by being provided with from outer inboard mazy type groove 53,54.The scope of the 1st drainage mechanism 61 is L1 (with reference to Fig. 3 and Figure 10).
As Fig. 3, Fig. 7, Figure 10 and shown in Figure 12, the 2nd drainage mechanism 62 of the upside of the 1st drainage mechanism 61 is the height H 11 of outer ribs 55 and intermediate rib 56 minimum discharge structures identical with the 1st drainage mechanism 61.The wheel hub 21 in the 2nd drainage mechanism 62 and the interval W2 of bulkhead 65 are littler than the interval W1 of wheel hub 21 in the 1st drainage mechanism 61 and bulkhead 65.The groove depth of outer inboard mazy type groove 53,54 is little.Like this, lead to outside big slightly draining road 66, can make the drainage performance of the 2nd drainage mechanism 62 and sealing obtain balance by being provided with from outer inboard mazy type groove 53,54.The scope of the 2nd drainage mechanism 62 is L2 (with reference to Fig. 3 and Figure 10).
As Fig. 3, Fig. 8, Figure 10 and shown in Figure 13, the 3rd drainage mechanism 63 of the upside of the 2nd drainage mechanism 62 is high discharge structures of height H 11 of height H 12 to the 1 the 2nd drainage mechanisms 61,62 of outer ribs 55 and intermediate rib 56.Height H 12 big reasons are the front end of outer ribs 55 and intermediate rib 56 causes to the inner peripheral surface extension of recess 23.Wheel hub 21 in the 3rd drainage mechanism 63 is identical with the part of the 2nd drainage mechanism 62 with the interval W2 of bulkhead 65, less than the interval W1 of wheel hub 21 in the 1st drainage mechanism 61 and bulkhead 65.Therefore, the groove depth of outer inboard mazy type groove 53,54 is bigger.Like this, can improve the sealing of the 3rd drainage mechanism 63.The scope of the 3rd drainage mechanism 63 is L3 (with reference to Fig. 3 and Figure 10).
As Fig. 3, Fig. 9, Figure 10 and shown in Figure 14, the maze-type structure of the part of the upside of the 3rd drainage mechanism 63 is that the height H 1 of outer ribs 55 and intermediate rib 56 is the highest, and is identical with above-mentioned part shown in Figure 5.The groove depth of outer inboard mazy type groove 53,54 is big.And, almost there is not bulkhead 65.
In addition, height H 11, the H12 of outer ribs 55 and intermediate rib 56 are the height that begin at the end from outside mazy type groove 53.
As Fig. 3, Figure 10 and shown in Figure 15, the extension 32 of back braking panel 30 is formed with the bulkhead 68 that extends to the peripheral part 22a of spoke flange 22.Bulkhead 68 is the parts that stop by the outer surface sputter of extension 32 towards the water of mazy type mechanism 50.Bulkhead 68 is the circular-arc wall member along the peripheral part 22a of spoke flange 22.The front end of bulkhead 68 extends near the end of opening one side of wheel hub 21.Even for example rainwater or clean water are not worried towards mazy type mechanism 50 like the outer surface sputter that is extended portion 32 among Figure 15 shown in the arrow yet.
Figure 16, Figure 17 and Figure 18 show around the present invention the 2nd embodiment's the front-wheel 70 of motor bike 10.In addition, the parts identical with the 1st embodiment of above-mentioned Fig. 1～shown in Figure 15 are given identical mark and omitted its explanation.In addition, among Figure 16 and Figure 17, omitted drum brake mechanism 40 and shown.
And, among Figure 16, formation about 6-6 line cross section is identical with above-mentioned formation shown in Figure 6, formation about 7-7 line cross section is identical with above-mentioned formation shown in Figure 7, formation about 8-8 line cross section is identical with above-mentioned formation shown in Figure 8, formation about 9-9 line cross section is identical with above-mentioned formation shown in Figure 9, omits explanation.
In addition, among Figure 18, formation about 11-11 line cross section is identical with above-mentioned formation shown in Figure 11, formation about 12-12 line cross section is identical with above-mentioned formation shown in Figure 12, formation about 13-13 line cross section is identical with above-mentioned formation shown in Figure 13, formation about 14-14 line cross section is identical with above-mentioned formation shown in Figure 14, omits explanation.
As Figure 16, Figure 17 and shown in Figure 180, as the wheel 70 of front-wheel comprise by bearing 13,14 rotatably be located at axletree 12 (with reference to Fig. 2) go up wheel hub 71 and with the preceding braking panel 80 of wheel hub 71 adjacency.
In addition, Figure 16, Figure 17 and the 2nd embodiment's shown in Figure 180 preceding braking panel 80 is braking panels of the present invention.
The drum brake 70A of wheel 70 is made of following parts: as the wheel hub 71 of rotary component, and as the preceding braking panel 80 of on-rotatably moving part, the drum brake mechanism 40 (with reference to Fig. 2) between wheel hub 71 and preceding braking panel 80.
The industrial possibility of utilizing
By in than the top part of the axletree of drum brake, at the outer peripheral face of braking panel Upper sequentially have outside labyrinth type groove and inboard labyrinth in the recess of panel width direction lateral The formula groove, and the sectional area of the inboard labyrinth type groove of sectional area ratio of labyrinth type groove is little outside making, thereby Can further improve the maze-type structure that the gap between wheel hub and the braking panel is sealed Formed water resistance.
By in the axletree part on the lower than drum brake, to clamping outside labyrinth type groove Outer ribs and the height of intermediate rib and the interval between wheel hub and the bulkhead suitably establish Fixed, can further improve the labyrinth type that the gap between wheel hub and the braking panel is sealed The formed water resistance of structure.
By outside the extension setting that is used for stopping to brake the panel rotation stops by extension Surface sputtering and towards the bulkhead of the water of maze-type structure, can further improve to wheel hub and The formed water resistance of maze-type structure that gap between the braking panel seals.
The waterproof construction of the drum brake of particularly, in the vehicles such as motor bike, equipping In be useful.
Claims (4)
1. the waterproof construction of a drum brake, above-mentioned drum brake (20A) is made of wheel hub (21) with recess (23) of taking in drum brake mechanism (40) and the braking panel (30) that stops up above-mentioned recess in the major component that supports the drum-type stopper mechanism, and utilize maze-type structure (50) to sealing as the wheel hub of rotary component with as the gap (52) between the braking panel of on-rotatably moving part, it is characterized in that
Ratio axletree (12) at above-mentioned drum brake leans in the last part, above-mentioned maze-type structure is that the outer circumferential face of above-mentioned braking panel (51) is engaged in the above-mentioned recess, and on the outer circumferential face of this braking panel, sequentially have outside mazy type groove (53) and inboard mazy type groove (54) to the recess inboard, and make the sectional area (A2) of the sectional area (A1) of outside mazy type groove less than inboard mazy type groove from the panel width direction.
2. the waterproof construction of drum brake as claimed in claim 1 is characterized in that,
The ratio axletree (12) of above-mentioned drum brake by under part in, above-mentioned maze-type structure sequentially has outside mazy type groove (53) and inboard mazy type groove (54) from recess inboard, lateral, near the axletree height and position, also along the circumferential direction make 3 kinds of discharge structures continuous from foot, in these 3 kinds of discharge structure parts, bulkhead (65) is extended to the diameter outside from above-mentioned braking panel
In the 1st discharge structure (61) of upper/lower positions, the outer ribs (55) by making the above-mentioned outside of clamping mazy type groove and the height (H11) of intermediate rib (56) are minimum, and make interval (W1) maximum between above-mentioned wheel hub and the above-mentioned bulkhead, thereby improve drainage performance,
In the 2nd discharge structure (62) thereon, the outer ribs by making the above-mentioned outside of clamping mazy type groove and the height (H11) of intermediate rib are identical with above-mentioned the 1st discharge structure, and make little than above-mentioned the 1st discharge structure of interval (W2) between above-mentioned wheel hub and the above-mentioned bulkhead, thereby the drainage performance of making and sealing obtain balance
In the 3rd discharge structure (63) thereon, outer ribs by making the above-mentioned outside of clamping mazy type groove and intermediate rib extend and than the height of above-mentioned the 1st, the 2nd discharge structure, and make little than above-mentioned the 1st discharge structure of interval (W2) between above-mentioned wheel hub and the above-mentioned bulkhead, thereby improve sealing.
3. the waterproof construction of drum brake as claimed in claim 1 or 2 is characterized in that,
Above-mentioned drum brake is the drum brake (20A) of motor bike, with above-mentioned braking panel spline be supported on the rear wheel fork (11) of motor bike (10), when the part with above-mentioned braking panel extends out along rear wheel fork, when seeking between this extension (32) and rear wheel fork to stop above-mentioned braking panel to rotate, the bulkhead (68) that stops by the outer surface sputter of extension towards the water of above-mentioned maze-type structure is set on above-mentioned extension.
4. the waterproof construction of drum brake as claimed in claim 3 is characterized in that, above-mentioned bulkhead extends towards the peripheral part (22a) of the spoke flange that erects from above-mentioned wheel hub (22).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2001/005706 WO2003008830A1 (en) | 2001-07-02 | 2001-07-02 | Waterproof construction for brake drums |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1524167A CN1524167A (en) | 2004-08-25 |
| CN1289833C true CN1289833C (en) | 2006-12-13 |
Family
ID=11737509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018234348A Expired - Fee Related CN1289833C (en) | 2001-07-02 | 2001-07-02 | Waterproof structure of drum brake |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP3640659B2 (en) |
| KR (1) | KR100489775B1 (en) |
| CN (1) | CN1289833C (en) |
| AR (1) | AR033188A1 (en) |
| BR (1) | BR0117073B1 (en) |
| GR (1) | GR20020100274A (en) |
| TW (1) | TW496841B (en) |
| WO (1) | WO2003008830A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005035982B4 (en) * | 2005-07-28 | 2017-09-28 | Bpw Bergische Achsen Kg | drum brake |
| KR101008669B1 (en) * | 2008-06-30 | 2011-01-18 | 김수진 | Ice manufacturing apparatus and ice manufacturing method using the same |
| JP5363388B2 (en) * | 2010-03-23 | 2013-12-11 | 本田技研工業株式会社 | Brake panel structure of drum brake |
| CN106160306A (en) * | 2016-08-04 | 2016-11-23 | 力帆实业(集团)股份有限公司 | Wheel hub motor of electric motorcycle dustproof construction |
| CN111043189A (en) * | 2019-12-09 | 2020-04-21 | 湖南省农友机械集团有限公司 | Fruit vegetables transport vechicle with drum structure of stopping |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS448580Y1 (en) * | 1966-11-29 | 1969-04-05 | ||
| JPS5042314Y2 (en) * | 1973-11-21 | 1975-12-01 | ||
| JPS5556928U (en) * | 1978-10-12 | 1980-04-17 | ||
| JPS6212913Y2 (en) * | 1980-09-22 | 1987-04-03 | ||
| JPS59177835U (en) * | 1983-05-16 | 1984-11-28 | 三菱自動車工業株式会社 | Seal structure in drum brake equipment |
-
2001
- 2001-07-02 WO PCT/JP2001/005706 patent/WO2003008830A1/en active Application Filing
- 2001-07-02 JP JP2003514141A patent/JP3640659B2/en not_active Expired - Fee Related
- 2001-07-02 BR BRPI0117073-2A patent/BR0117073B1/en not_active IP Right Cessation
- 2001-07-02 CN CNB018234348A patent/CN1289833C/en not_active Expired - Fee Related
- 2001-11-22 TW TW090129147A patent/TW496841B/en not_active IP Right Cessation
-
2002
- 2002-02-22 KR KR10-2002-0009539A patent/KR100489775B1/en not_active IP Right Cessation
- 2002-03-22 AR ARP020101041A patent/AR033188A1/en active IP Right Grant
- 2002-06-06 GR GR20020100274A patent/GR20020100274A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1524167A (en) | 2004-08-25 |
| GR20020100274A (en) | 2003-03-28 |
| AR033188A1 (en) | 2003-12-10 |
| TW496841B (en) | 2002-08-01 |
| KR20030003664A (en) | 2003-01-10 |
| WO2003008830A1 (en) | 2003-01-30 |
| JP3640659B2 (en) | 2005-04-20 |
| JPWO2003008830A1 (en) | 2004-11-11 |
| BR0117073B1 (en) | 2010-06-01 |
| BR0117073A (en) | 2004-07-27 |
| KR100489775B1 (en) | 2005-05-16 |
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