CA1150648A - Wheel brake arrangement - Google Patents
Wheel brake arrangementInfo
- Publication number
- CA1150648A CA1150648A CA000363394A CA363394A CA1150648A CA 1150648 A CA1150648 A CA 1150648A CA 000363394 A CA000363394 A CA 000363394A CA 363394 A CA363394 A CA 363394A CA 1150648 A CA1150648 A CA 1150648A
- Authority
- CA
- Canada
- Prior art keywords
- housing
- wheel
- brake
- pin
- gear housing
- 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
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- Braking Arrangements (AREA)
Abstract
Wheel Brake Arrangement Abstract Backing plates are normally bolted to wheel gear housings and brake shoes are normally biased against such backing plates. Hydraulic or pneumatic lines normally proceed externally of the housing and over the backing plate to connect with a wheel cylinder which motivates the brake shoes. Such hydraulic lines can be easily damaged. A wheel brake arrangement is disclosed which eliminates external hydraulic or pneumatic lines and eliminates such a backing plate.
At least one conduit is formed within a housing. The conduit is connected directly to a wheel cylinder. The wheel cylinder is mounted to one end of the housing. A
biasing structure can serve for biasing a brake shoe into contacting relation with one end of the housing.
A piloting arrangement can serve for properly aligning the wheel cylinder to motivate the brake shoe and to receive pressurized fluid from the conduit.
At least one conduit is formed within a housing. The conduit is connected directly to a wheel cylinder. The wheel cylinder is mounted to one end of the housing. A
biasing structure can serve for biasing a brake shoe into contacting relation with one end of the housing.
A piloting arrangement can serve for properly aligning the wheel cylinder to motivate the brake shoe and to receive pressurized fluid from the conduit.
Description
Descri~tion Wheel Brake Arrangement Technical Field This invention relates to a wheel brake arrangement for motivating a brake shoe into contact with a brake drum and for retaining the shoe in contacting relation with a housing of the wheel arrangement.
Background Art There are a number of wheel brake arrangements which have a brake drum adjacent one end of a houslng and at least one radially expandable brake shoe intermediate the housing and the drum. A wheel cylinder acts responsive to fluid pressure to mo~ivate the shoe into frictional brakinO engagement with the drum.
In such prior art arrangements as described above, a backing plate is provided for the brake shoes, with the bac~lng plate being connected to the housing.
The wheel cylinder is attached to a s~de of the backing plate removed from the~housing. Hydraulic lines extend from outside of the housing, pass over the backing plate, and are connected to the wheel cylinder. Thus J
the lines are exposed outside of the frame and are sub~ect to damage and leakage due to the compound bend angles necessary. ~urther~ such lines are difficult to assemble to the wheel cylinder due to lack of space, particularly when a wheel gear is mounted on a hub or spindle within the housing. In addition, the backing plates are formed by an additional metal working step which adds to the overall expense of the integrated wheel brake arrangement.
-:
Prior art backing plates are held against the brake shoes by spring retainers which include a pin having an enlarged end thereof positioned through a hole in the backing plate, with the l~rge end of the pin being too large to pass through the hole. The pin is biased bet~een the brake shoe and the backing plate so that the large end of the pin bears against the backing plate in a manner to produce a force which biases the brake shoe into contact with the backing plate. Such a spring retainer arrangement works well, but is difficult to assemble. That is, during assembly the pin can fall through the hole in the backing plate (which hole is large enough to admlt all parts of the pin except for the enlarged end thereof).
This is clearly undesirable and can lead to wasted time during assembly. Further, if the backing plate can be eliminated, thus saving expense and allowing eliminatlon of exposed and easily damaged pressurized lines, a problem arises of providing a retainer for holding the brake shoes against the housing. The prior art does not attack such a problem.
The wheel cylinders o~ the prior art are generally mounted ~latly against the backing plate.
In such structures the~wheel cylinder can be attached to the housing. If a backing plate is eliminated to save cost and eliminate potential damage to exposed pressurized lines, obtaining proper assembly of the wheel cylinder to the housing introduces yet another new problem not contemplated by the prior art.
The present invention is directed to overcoming one or more of the problems as set forth above.
. ~ :
' ~3~
Statement of Inventioll In one aspect of the present invention, there is provided a wheel brake arrangement having a frameJ a wheel gear housing adjacent the frame, a rotating brake member adjacent one end of the wheel gear housing, the rotating brake member being adapted to brake a wheel hub, a brake shoe friction member intermediate the wheel gear housing and the rotating ~rake member and means for fluid pressure motivating of the ~rake shoe friction member to move into frictional engagement with the rotating brake member comprising: means for mounting said motivating means in abutting relation directly to said one end of said wheel gear housing without the interposition of a backing plate between said motivating means and said wheel gear housing;
said wheel gear housing defining a passage; means for rigidly connecting the wheel housing to the frame; and means for connecting said passage with said motivating means.
Preferably, the wheel brake arrangement includes means for axially biasing the friction member into contacting relation with the one end of the housing.
It will be noted that a backing plate is completely eliminated in all aspects of the improvement and the pressurized fluid is introduced to the motivating means (the wheel cylinder) without its passing through any exposed lines external of the wheel gear housing. In one embodiment, the brake shoes are biased against the housing without possible loss of the pin. Thus, assembly problems are minimized and the possibility of line damage is eliminated.
Brief Description of Drawings Figure 1 is an end view of a wheel brake arrangement in accordance with an embodiment of the present invention;
Figure 2 illustrates an enlarged view taken along the line II-II of Figure l; and Figure 3 illustrates an enlarged view taken along the line III-III of Figure 1.
Best Mode for Carrying Out the Invention Adverting primarily to Figure 2, but also to Figure 1, the invention relates to an improvement in a wheel brake arrangement 10. The wheel brake arrangement 10 may be of the type illustrated and have a wheel gear housing 12 which ~adially surrounds a wheel gear 14 con-ventionally driven by a pinion gear (not illustra-ted) at teeth 15. The pinion gear conventionally passes through an opening (not illustrated) in a frame 16. The housing 12 is rigidly attached to the frame 16. The wheel gear 14 is rotatably mounted at bearings 17,18 on a wheel spindle 20. A rotating spindle (axle) passing through the frame 16 can replace the wheel gear 14. A rotating member (brake drum) 22 is provided adjacent and generally spaced from one end 22 of the housing 12 and is secured to gear ~:
20- 14. A pair of radially expandable friction members (brake shoes) 26 (shown in phantom in Figures 2 and 3) are located intermediate the housing 12 and the drum 24. A
wheel cylinder 28 serves as means for hydraulically moti-vating the shoe 26 into frictional coupling engagement with the drum 22.
As seen in Figures 1 and 2, means 30, in the embodiment illustrated four bolts, only one of which, 32, is seen in Figure 2, serves for mounting the wheel cylin-der 28 to the one end 24 of the housing 12. A passage sys-tem 33, in the embodiment illustrated a pair of passages34 and 36, is formed within the :, -, ~- :
, . - ' ~ . ~ :
housing 12. The passage system 33 communicates with a master cylinder (not shown) via a conduit 37 whlch is fully protected by the frame 16.
Means 38 are provided for connecting each of the passages 34,36 directly with the wheel cylinder 28. In the embodiment illustrated ln ~igure
Background Art There are a number of wheel brake arrangements which have a brake drum adjacent one end of a houslng and at least one radially expandable brake shoe intermediate the housing and the drum. A wheel cylinder acts responsive to fluid pressure to mo~ivate the shoe into frictional brakinO engagement with the drum.
In such prior art arrangements as described above, a backing plate is provided for the brake shoes, with the bac~lng plate being connected to the housing.
The wheel cylinder is attached to a s~de of the backing plate removed from the~housing. Hydraulic lines extend from outside of the housing, pass over the backing plate, and are connected to the wheel cylinder. Thus J
the lines are exposed outside of the frame and are sub~ect to damage and leakage due to the compound bend angles necessary. ~urther~ such lines are difficult to assemble to the wheel cylinder due to lack of space, particularly when a wheel gear is mounted on a hub or spindle within the housing. In addition, the backing plates are formed by an additional metal working step which adds to the overall expense of the integrated wheel brake arrangement.
-:
Prior art backing plates are held against the brake shoes by spring retainers which include a pin having an enlarged end thereof positioned through a hole in the backing plate, with the l~rge end of the pin being too large to pass through the hole. The pin is biased bet~een the brake shoe and the backing plate so that the large end of the pin bears against the backing plate in a manner to produce a force which biases the brake shoe into contact with the backing plate. Such a spring retainer arrangement works well, but is difficult to assemble. That is, during assembly the pin can fall through the hole in the backing plate (which hole is large enough to admlt all parts of the pin except for the enlarged end thereof).
This is clearly undesirable and can lead to wasted time during assembly. Further, if the backing plate can be eliminated, thus saving expense and allowing eliminatlon of exposed and easily damaged pressurized lines, a problem arises of providing a retainer for holding the brake shoes against the housing. The prior art does not attack such a problem.
The wheel cylinders o~ the prior art are generally mounted ~latly against the backing plate.
In such structures the~wheel cylinder can be attached to the housing. If a backing plate is eliminated to save cost and eliminate potential damage to exposed pressurized lines, obtaining proper assembly of the wheel cylinder to the housing introduces yet another new problem not contemplated by the prior art.
The present invention is directed to overcoming one or more of the problems as set forth above.
. ~ :
' ~3~
Statement of Inventioll In one aspect of the present invention, there is provided a wheel brake arrangement having a frameJ a wheel gear housing adjacent the frame, a rotating brake member adjacent one end of the wheel gear housing, the rotating brake member being adapted to brake a wheel hub, a brake shoe friction member intermediate the wheel gear housing and the rotating ~rake member and means for fluid pressure motivating of the ~rake shoe friction member to move into frictional engagement with the rotating brake member comprising: means for mounting said motivating means in abutting relation directly to said one end of said wheel gear housing without the interposition of a backing plate between said motivating means and said wheel gear housing;
said wheel gear housing defining a passage; means for rigidly connecting the wheel housing to the frame; and means for connecting said passage with said motivating means.
Preferably, the wheel brake arrangement includes means for axially biasing the friction member into contacting relation with the one end of the housing.
It will be noted that a backing plate is completely eliminated in all aspects of the improvement and the pressurized fluid is introduced to the motivating means (the wheel cylinder) without its passing through any exposed lines external of the wheel gear housing. In one embodiment, the brake shoes are biased against the housing without possible loss of the pin. Thus, assembly problems are minimized and the possibility of line damage is eliminated.
Brief Description of Drawings Figure 1 is an end view of a wheel brake arrangement in accordance with an embodiment of the present invention;
Figure 2 illustrates an enlarged view taken along the line II-II of Figure l; and Figure 3 illustrates an enlarged view taken along the line III-III of Figure 1.
Best Mode for Carrying Out the Invention Adverting primarily to Figure 2, but also to Figure 1, the invention relates to an improvement in a wheel brake arrangement 10. The wheel brake arrangement 10 may be of the type illustrated and have a wheel gear housing 12 which ~adially surrounds a wheel gear 14 con-ventionally driven by a pinion gear (not illustra-ted) at teeth 15. The pinion gear conventionally passes through an opening (not illustrated) in a frame 16. The housing 12 is rigidly attached to the frame 16. The wheel gear 14 is rotatably mounted at bearings 17,18 on a wheel spindle 20. A rotating spindle (axle) passing through the frame 16 can replace the wheel gear 14. A rotating member (brake drum) 22 is provided adjacent and generally spaced from one end 22 of the housing 12 and is secured to gear ~:
20- 14. A pair of radially expandable friction members (brake shoes) 26 (shown in phantom in Figures 2 and 3) are located intermediate the housing 12 and the drum 24. A
wheel cylinder 28 serves as means for hydraulically moti-vating the shoe 26 into frictional coupling engagement with the drum 22.
As seen in Figures 1 and 2, means 30, in the embodiment illustrated four bolts, only one of which, 32, is seen in Figure 2, serves for mounting the wheel cylin-der 28 to the one end 24 of the housing 12. A passage sys-tem 33, in the embodiment illustrated a pair of passages34 and 36, is formed within the :, -, ~- :
, . - ' ~ . ~ :
housing 12. The passage system 33 communicates with a master cylinder (not shown) via a conduit 37 whlch is fully protected by the frame 16.
Means 38 are provided for connecting each of the passages 34,36 directly with the wheel cylinder 28. In the embodiment illustrated ln ~igure
2, the aforementioned connecting means 38 comprises the bolting in place, via the bolts 32, of the wheel cylinder 28 to the one end 24 of the housing 12, along with a pair of passases 40,42 which connect respectively with the passages 34,36 and a control chamber 44 o~ the wheel cyllnder 28. A pair of 0-ring seals 46,48, respectively seal the connection between the passages 34 and 40 and the passages 36 and 42. One of the pair of passages 34 and 36 serves for pressurizing, and the other for bleeding the wheel cyllnder 28 in a conventional manner. Although two passages 34 and 36 are illustrated, it should be recognized that a single passage can be, and often conventionally is only, provlded for brake syste~
pressurization. Thus, it is clear that there are no exposed hydraulic or pneumatic lines which are sub~ect to breakage or whlch must be carefully aligned on assembly, since no lines are provided but instead only the passage system 33 in the housing 12.
And, since the housing 12 ls rigidly connected to the frame 16, no such somewhat flexible lines are needed to complete the passage system 33.
The wheel cylinder 28 fits in a piloting cavity 49 in the housing 12. Thus, when the wheel cylinder 28 is fitted into the piloting cavity 49 and the bolts 32 are put in place, the wheel cylinder 28 is properly positloned relative to the brake shoes 26, .. .
~S~ 8 and importantly, me~ns are provided to properly connec~ the passage 34 to the passage 40 and the passage 36 to the passage 42 at the 0-ring seals 46 and 48. Proper alignment of the passages 34 and ~6 with the passages 40 and 42 is thereby provided.
Since the passage system 33 is completely within the housing 12, there are no exposed hydraulic or pneumatlc llnes to be damaged.
In order that the one end 24 of the housing 12 can effectively ta~e the place of the conventional backing plate, lt is necessary that the one end 24 of the housing 12 be relatively srnooth surfaced so that the brake shoe 26 can be properly guided by sllding thereagainst and that the one end 24 have a large enough diameter to support the brake shoe 26.
Adverting now primarily to Figure 3, there is illustrated therein means 50 for biasing each brake shoe 26 into contactinæ relation with the one end 24 of the housin~ 12. As will be seen, the blasing means 50 includes a pin 52 which is aligned generally perpendicular to the one end 24 of the housing 12. ~leans 54 are provided which serve for retaining a first end 56 of the pin 52 from moving axially outwardly (lef,twardly ln Figure 3) relative to the one end 24 of the housing 12. The illustrated means 54, for retaining the first end 56 of the pin 52~ is in the form of a plate 58 having a hole 60 therethrough, through which the pin 52 is recelved.
The ~irst end 56 of the pin 52, as illustrated, is too large to pass through the hole 60. A second end 62 of the pin 52 is sufficiently small to pass through the hole 60 to allow assembly of the overall biasing means 50. Although not illustrated because .. .
. .
~5~648 of lts conventional nature, the second end 62 can be shaped to pass through a slot (not illustrated) in a washer 63 and then be rotated to a locking posltlon where it will no longer be aligned with the slot and be able to pass through the slot.
Means, in the embodiment illustrated a bolt 64~ which passes through an approprlate hole 66 in a portion of the plate 58 removecl from the hole 60, serves for affixing the plate 58 in immovable relation to the housing 12 with the pin 52 in movable relation within the hole 60. A compression coil spring 68 acts between a web 70 of the brake shoe 26 and the washer 63, thereby biasing the shoe 26 into contact with the end surface 2Z~ pulling the first end 56 of the pin 52 against a housing facing side 7l~ of the plate 58. Thus, the means 54 serves the desired purpose of retaining the first end 56 of the pin 52 from moving axially away from (out~ardly relative to the one end 24 of) the housing 12.
The spring 68 and the washer 63, thus, serve as means 76 for biasing the second end 62 of the pin 52 against the brake shoe 26 in a direction to bias the brake shoe 2~ against the one end 24 of the housing 12.
The brake shoe biasing means 50 also includes means 78 for retaining the first end 56 of the pin 52 from moving into (axially inwardly relative to the one end 24 of) the housins 12. In the embodimen~ illustrated, the retaining means 78 comprises a bore 80 which extends generally axially into the housing 12, but does not extend fully therethrough. Thus, the first end 56 of the pin 52 ls held between the housing facing side 74 of the plate 58 and the bottom of the bore 80.
' ' -.
36'~3 Assembly is simplified with the brake shoe bias-ing means 5~ in that the pin 52 is held in position during assembly. Briefly, -the first end 56 of the pin 52 is held in the bore 80 by the plate 58. This prevents the pin 52 from falling out during assembly. The pin 52 is then dis-posed in an aperture in the web 70. The spring 68 and washer 63 are then positioned over the second end 62 of the pin 52, as by making use of a slot in the washer 63.
With elimination of a backing plate between the housing 12 and the bralce shoe 26, it is possible to bring in hydraulic or pneumatic pressure through passages bored in the housing 12. This eliminates exposed lines and re-moves the problem of line connection on assembly. With the backing plate eliminated, means 50 are provided for axially biasing the brake shoe 26 into contacting relation with the one end 24 of the housing 12. A particularly ad-vantageous biasing means 50 is disclosed which cannot fall out during assembly thereof, because of its unique design, particularly because of the means 78 which serves for re-taining the first end 56 of the pin 52 of the biasingmeans 50 from axia'ly moving inwardly relative to the one end 24 of the housing 12. A piloting cavity 49 is pro-vided in the housing 12 for easy assembly and proper aligning of the passage system 30 with the wheel cylinder 28.
Other aspects, objectives, and advantages of this invention can be obtained from the study of the drawings, the disclosure and the appended claims, , ~ .
. - , ~ . ' ' ' ' ., ' ` : , : , " ~ ' : ~ , , !
pressurization. Thus, it is clear that there are no exposed hydraulic or pneumatic lines which are sub~ect to breakage or whlch must be carefully aligned on assembly, since no lines are provided but instead only the passage system 33 in the housing 12.
And, since the housing 12 ls rigidly connected to the frame 16, no such somewhat flexible lines are needed to complete the passage system 33.
The wheel cylinder 28 fits in a piloting cavity 49 in the housing 12. Thus, when the wheel cylinder 28 is fitted into the piloting cavity 49 and the bolts 32 are put in place, the wheel cylinder 28 is properly positloned relative to the brake shoes 26, .. .
~S~ 8 and importantly, me~ns are provided to properly connec~ the passage 34 to the passage 40 and the passage 36 to the passage 42 at the 0-ring seals 46 and 48. Proper alignment of the passages 34 and ~6 with the passages 40 and 42 is thereby provided.
Since the passage system 33 is completely within the housing 12, there are no exposed hydraulic or pneumatlc llnes to be damaged.
In order that the one end 24 of the housing 12 can effectively ta~e the place of the conventional backing plate, lt is necessary that the one end 24 of the housing 12 be relatively srnooth surfaced so that the brake shoe 26 can be properly guided by sllding thereagainst and that the one end 24 have a large enough diameter to support the brake shoe 26.
Adverting now primarily to Figure 3, there is illustrated therein means 50 for biasing each brake shoe 26 into contactinæ relation with the one end 24 of the housin~ 12. As will be seen, the blasing means 50 includes a pin 52 which is aligned generally perpendicular to the one end 24 of the housing 12. ~leans 54 are provided which serve for retaining a first end 56 of the pin 52 from moving axially outwardly (lef,twardly ln Figure 3) relative to the one end 24 of the housing 12. The illustrated means 54, for retaining the first end 56 of the pin 52~ is in the form of a plate 58 having a hole 60 therethrough, through which the pin 52 is recelved.
The ~irst end 56 of the pin 52, as illustrated, is too large to pass through the hole 60. A second end 62 of the pin 52 is sufficiently small to pass through the hole 60 to allow assembly of the overall biasing means 50. Although not illustrated because .. .
. .
~5~648 of lts conventional nature, the second end 62 can be shaped to pass through a slot (not illustrated) in a washer 63 and then be rotated to a locking posltlon where it will no longer be aligned with the slot and be able to pass through the slot.
Means, in the embodiment illustrated a bolt 64~ which passes through an approprlate hole 66 in a portion of the plate 58 removecl from the hole 60, serves for affixing the plate 58 in immovable relation to the housing 12 with the pin 52 in movable relation within the hole 60. A compression coil spring 68 acts between a web 70 of the brake shoe 26 and the washer 63, thereby biasing the shoe 26 into contact with the end surface 2Z~ pulling the first end 56 of the pin 52 against a housing facing side 7l~ of the plate 58. Thus, the means 54 serves the desired purpose of retaining the first end 56 of the pin 52 from moving axially away from (out~ardly relative to the one end 24 of) the housing 12.
The spring 68 and the washer 63, thus, serve as means 76 for biasing the second end 62 of the pin 52 against the brake shoe 26 in a direction to bias the brake shoe 2~ against the one end 24 of the housing 12.
The brake shoe biasing means 50 also includes means 78 for retaining the first end 56 of the pin 52 from moving into (axially inwardly relative to the one end 24 of) the housins 12. In the embodimen~ illustrated, the retaining means 78 comprises a bore 80 which extends generally axially into the housing 12, but does not extend fully therethrough. Thus, the first end 56 of the pin 52 ls held between the housing facing side 74 of the plate 58 and the bottom of the bore 80.
' ' -.
36'~3 Assembly is simplified with the brake shoe bias-ing means 5~ in that the pin 52 is held in position during assembly. Briefly, -the first end 56 of the pin 52 is held in the bore 80 by the plate 58. This prevents the pin 52 from falling out during assembly. The pin 52 is then dis-posed in an aperture in the web 70. The spring 68 and washer 63 are then positioned over the second end 62 of the pin 52, as by making use of a slot in the washer 63.
With elimination of a backing plate between the housing 12 and the bralce shoe 26, it is possible to bring in hydraulic or pneumatic pressure through passages bored in the housing 12. This eliminates exposed lines and re-moves the problem of line connection on assembly. With the backing plate eliminated, means 50 are provided for axially biasing the brake shoe 26 into contacting relation with the one end 24 of the housing 12. A particularly ad-vantageous biasing means 50 is disclosed which cannot fall out during assembly thereof, because of its unique design, particularly because of the means 78 which serves for re-taining the first end 56 of the pin 52 of the biasingmeans 50 from axia'ly moving inwardly relative to the one end 24 of the housing 12. A piloting cavity 49 is pro-vided in the housing 12 for easy assembly and proper aligning of the passage system 30 with the wheel cylinder 28.
Other aspects, objectives, and advantages of this invention can be obtained from the study of the drawings, the disclosure and the appended claims, , ~ .
. - , ~ . ' ' ' ' ., ' ` : , : , " ~ ' : ~ , , !
Claims (5)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A wheel brake arrangement having a frame, a wheel gear housing adjacent the frame, a rotating brake member adjacent one end of the wheel gear housing, the rotating brake member being adapted to brake a wheel hub, a brake shoe friction member intermediate the wheel gear housing and the rotating brake member and means for fluid pressure motivating of the brake shoe friction member to move into frictional engagement with the rotating brake member comprising:
means for mounting said motivating means in abutting relation directly to said one end of said wheel gear housing without the interposition of a backing plate between said motivating means and said wheel gear housing;
said wheel gear housing defining a passage;
means for rigidly connecting the wheel housing to the frame; and means for connecting said passage with said motivating means.
means for mounting said motivating means in abutting relation directly to said one end of said wheel gear housing without the interposition of a backing plate between said motivating means and said wheel gear housing;
said wheel gear housing defining a passage;
means for rigidly connecting the wheel housing to the frame; and means for connecting said passage with said motivating means.
2. The wheel brake arrangement as set forth in claim 1, including:
means for biasing said friction member into direct contacting relation with said one end of said wheel gear housing.
means for biasing said friction member into direct contacting relation with said one end of said wheel gear housing.
3. The wheel brake arrangement as set forth in claim 2, wherein said biasing means comprises;
a pin aligned generally perpendicular to said one end of said wheel gear housing;
means for retaining a first end of said pin from moving axially away from said housing;
means for biasing a second end of said pin against said friction member and in a direction for biasing said friction member against said one end of said housing; and means for retaining said first end of said pin from moving axially into said housing.
a pin aligned generally perpendicular to said one end of said wheel gear housing;
means for retaining a first end of said pin from moving axially away from said housing;
means for biasing a second end of said pin against said friction member and in a direction for biasing said friction member against said one end of said housing; and means for retaining said first end of said pin from moving axially into said housing.
4. The wheel brake arrangement as set forth in claim 3 wherein said biasing means further comprises;
a plate having a hole therethrough through which said pin fits, said first end of said pin being too large to pass through said hole and said second end of said pin being sufficiently small to pass through said hole; and means for affixing said plate in immovable relation to said housing with said pin in movable relation within said hole.
a plate having a hole therethrough through which said pin fits, said first end of said pin being too large to pass through said hole and said second end of said pin being sufficiently small to pass through said hole; and means for affixing said plate in immovable relation to said housing with said pin in movable relation within said hole.
5. The wheel brake arrangement as set forth in Claim 1 including:
means for aligning the motivating means with said passage in said wheel gear housing.
means for aligning the motivating means with said passage in said wheel gear housing.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/201,092 US4345673A (en) | 1980-03-13 | 1980-03-13 | Wheel brake arrangement |
| US201,092 | 1980-03-13 | ||
| USPCT80/00269 | 1980-03-13 | ||
| PCT/US1980/000269 WO1981002550A1 (en) | 1980-03-13 | 1980-03-13 | Wheel brake arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1150648A true CA1150648A (en) | 1983-07-26 |
Family
ID=26762677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000363394A Expired CA1150648A (en) | 1980-03-13 | 1980-10-28 | Wheel brake arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1150648A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5865277A (en) * | 1996-07-23 | 1999-02-02 | Hunter; Marc | Wheels and brakes for vehicles |
-
1980
- 1980-10-28 CA CA000363394A patent/CA1150648A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5865277A (en) * | 1996-07-23 | 1999-02-02 | Hunter; Marc | Wheels and brakes for vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |