IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0177254
(2008-07-22)
|
| 등록번호 |
US-8267227
(2012-09-18)
|
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
- Akebono Brake Corporation
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
0 인용 특허 :
79 |
초록
▼
The present invention is predicated upon improved vehicle brake assemblies, parking brake assemblies, parking brake actuating mechanisms, or combinations thereof, having simplified attachment features and for assembling a brake cable within the parking assembly with substantially limited or no visua
The present invention is predicated upon improved vehicle brake assemblies, parking brake assemblies, parking brake actuating mechanisms, or combinations thereof, having simplified attachment features and for assembling a brake cable within the parking assembly with substantially limited or no visual access therein.
대표청구항
▼
1. An actuating mechanism for a parking brake assembly comprising: a) a casing that includes a first wall, a second wall, opposing brake shoe contract surfaces, and at least one interior wall structure, including: i. an upper wall portion,ii. a lower wall portion, andiii. a middle wall portion or bo
1. An actuating mechanism for a parking brake assembly comprising: a) a casing that includes a first wall, a second wall, opposing brake shoe contract surfaces, and at least one interior wall structure, including: i. an upper wall portion,ii. a lower wall portion, andiii. a middle wall portion or boss;b) a lever located in the casing and pivotally engaging the casing, wherein the lever has a first member portion and a second member portion, wherein the first member portion and the second member portion each include an engagement portion having at least one exterior wall portion with at least one angle opposing the lower wall portion of the interior wall structure of the casing,c) a biasing member fixedly secured to the casing or to the lever and juxtaposed to a surface of the lever or casing; andd) a brake cable including a first end;wherein during attachment of the brake cable to the parking brake assembly, the brake cable rotates the lever upward with the first end of the brake cable contacting the lower wall portion, the middle wall portion, and the upper wall portion of the interior wall structure in sequence and the angled exterior wall portion of the lever so that the brake cable is pushed through a gap between the lever and the at least one interior wall structure of the casing, and the first end of the brake cable becomes seated on the lever;wherein the gap is a distance between the middle wall portion or boss of the at least one interior wall structure and a center of a valley of the lever when measured along a longitudinal axis that extends through the contract surfaces of the casing; andwherein the distance between the middle wall portion or boss of the at least one interior wall structure and the center of the valley of the lever is smaller than a distance between the upper wall portion and the lower wall portion of the interior wall structure and the center of the valley of the lever when measured along the longitudinal axis that extends through the contract surfaces of the casing. 2. The actuating mechanism for a parking brake assembly of claim 1, wherein the upper wall portion has an angle from about 5 to about 40 degrees relative to a transverse axis. 3. The actuating mechanism for a parking brake assembly of claim 1, wherein the lower wall portion has an angle from about 30 to about 70 degrees relative to a transverse axis. 4. The actuating mechanism for a parking brake assembly of claim 1, wherein portions of the at least one interior wall structure extend into and between the first member portion and the second member portion of the lever. 5. The actuating mechanism for a parking brake assembly of claim 1, wherein the brake cable deflects along the upper wall portion of the interior wall structure and away from the lever when the brake cable is pushed through the gap between the lever and the at least one interior wall structure. 6. The actuating mechanism for a parking brake assembly of claim 5, wherein the brake cable includes a body portion that contacts a surface of the middle wall portion or boss of the casing during attachment of the brake cable. 7. The actuating mechanism for a parking brake assembly of claim 1, wherein the engagement portion of the lever is proximate to the interior wall structure of the casing so that the brake lever has a lever ratio from about 3:1 to about 7:1. 8. The actuating mechanism for a parking brake assembly of claim 1, wherein the brake cable springs into alignment after the brake cable is pushed through the gap between the lever and the at least one interior wall structure as the lever rotates downward. 9. The actuating mechanism for a parking brake assembly of claim 1, wherein the lever is generally maintained in the retracted position and in proximity to the gap between the at least one exterior wall portion of the lever and the interior wall structure of the casing so that the brake cable is prevented from becoming unintentionally uninstalled. 10. The actuating mechanism for a parking brake assembly of claim 1, wherein the lever includes a first chamfered wall and a second chamfered wall. 11. The actuating mechanism for a parking brake assembly of claim 10, wherein the first chamfered wall has an angle from about 35 to about 75 degrees relative to the longitudinal axis of the lever and the second chamfered wall has an angle from about 5 to about 40 degrees relative to the longitudinal axis of the lever. 12. The actuating mechanism for a parking brake assembly of claim 1, wherein the upper wall portion and the lower wall portion converge to form the middle wall portion that has a generally flat interior face or boss. 13. The actuating mechanism for a parking brake assembly of claim 1, wherein the first wall and the second wall converge to form the interior wall structure. 14. The actuating mechanism for a parking brake assembly of claim 1, wherein the upper wall portion is angled to divert the first end of the brake cable so that the first end of the brake cable is seated in the engagement portion of the lever once the lever has returned, to its retracted position, and the interior wall structure is a separate structure fixedly secured to the casing. 15. The actuating mechanism for a parking brake assembly of claim 1, wherein the casing has a second upper wall portion with an opening that receives and secures the biasing member and wherein the second upper wall portion has a protruding member to assist the biasing member in limiting rotation of the lever. 16. The actuating mechanism for a parking brake assembly of claim 1, wherein the casing includes a first upper wall portion that has an opening that receives and, secures the biasing member so that the biasing member is attached to the casing. 17. An actuating mechanism for a parking brake assembly comprising: a) a casing that includes a first wall, a second wall, opposing brake shoe contact surfaces, and at least one interior wall structure, including: i. an upper wall portion,ii. a lower wall portion, andiii. a middle wall portion or boss;b) a lever located in the casing and pivotally engaging the casing, wherein the lever has a first member portion and a second member portion, wherein the first member portion and the second member portion each include an engagement portion having at least one exterior wall portion with at least one angle opposing the lower wall portion of the interior wall structure of the casing,c) a biasing member fixedly secured to the casing or to the lever and juxtaposed to a surface of the lever or casing; andd) a brake cable including a first end;wherein during attachment of the brake cable to the parking brake assembly, the brake cable rotates the lever upward with the first end of the brake cable contacting the lower wall portion, the middle wall portion, and the upper wall portion of the interior wall structure in sequence and the angled exterior wall portion of the lever so that the brake cable is pushed through a gap between the lever and the at least one interior wall structure of the casing, and the first end of the brake cable becomes seated on the lever;wherein the at least one interior wall structure extends into and between the first member portion and the second member portion of the lever;wherein the gap is a distance between the middle wall portion or boss of the at least one interior wall structure and a center of a valley of the lever when measured along a longitudinal axis that extends through the contact surfaces of the casing, andwherein the distance between the middle wall portion or boss of the at least one interior wall structure and the center of a valley of the lever is smaller than a distance between the upper wall portion and the lower wall portion of the interior wall structure and the center of the valley of the lever when measured along the longitudinal as that extends through the contact surfaces of the casing. 18. The actuating mechanism for a parking brake assembly of claim 17, wherein the upper wall portion forms an angle from about 5 to about 40 degrees relative to a transverse axis, and the lower wall portion forms an angle from about 30 to about 70 degrees relative to the transverse axis. 19. The actuating mechanism for a parking brake assembly of claim 17, wherein the brake cable deflects along the upper wall portion of the interior wall structure and away from the lever when the brake cable is pushed through the gap between the lever and the at least one interior wall structure, and the brake cable springs into alignment after the brake cable is pushed through the gap between the lever and the at least one interior wall structure as the lever rotates downward. 20. The actuating mechanism for a parking brake assembly of claim 17, wherein the lever includes a first chamfered wall and a second chamfered wall, the first chamfered wall has an angle from about 35 to about 75 degrees relative to the longitudinal axis of the lever and the second chamfered wall as an angle from about 5 to about 40 degrees relative to the longitudinal axis of the lever, and the interior wall structure is a separate structure fixedly secured to the casing.
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