Patent US4949592A successfully refreshed from Google Patents.
US4949592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pedal-operated parking brake
Assignee: Aisin Corp
•
Filing: 1988-05-26
•
Granted: 1990-08-21
•
Expires: 2008-05-26
Abstract
Abstract A pedal-operated parking brake for use in an automotive vehicle with a brake pedal lever mounted on a bracket which is secured to the vehicle body. The parking brake has a sector with teeth formed on its arcuate end portion, which is easily fixed to the brake pedal lever through a single connecting pin. A pawl having a tooth engageable with the teeth of the sector is pivotally mounted on the bracket and biased in a direction to urge the pawl to engage with the sector, and also pivotally mounted is a release lever for biasing the pawl in a direction to urge the pawl to disengage from the sector. The parking brake is provided with a damper for absorbing the shocks in stopping the rotation of the brake pedal lever and positioning the brake pedal lever. The damper includes a cylindrical resilient member which is easily mounted on a support pin which is fixed to the bracket perpendicularly to the pivoting plane of the brake pedal lever. The spring for biasing the release lever may be disposed in an opening defined in the bracket.
Inventors
- 👤 Takeo Yamazaki
- 👤 Takuya Inaba
- 👤 Kiyoaki Suesaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:57
CPC Classifications
G; G05; G05G; G05G25/00; G05G25/02; B; B60; B60T; B60T7/00; B60T7/02; B60T7/04; B60T7/06; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20528; Y10T74/20576; Y10T74/20636; Y10T74/20648; Y10T74/20672; Y10T74/20708; Y10T74/20714
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
A pedal-operated parking brake for use in an automotive vehicle comprising: a bracket secured to a vehicle body; a brake pedal lever pivotally mounted on said bracket; a sector fixed to said brake pedal lever through positioning means for positioning said sector on said brake pedal lever, and fastening means for fastening said sector to said brake pedal lever, said sector having an arcuate end portion with teeth formed thereon, said positioning means having at least one protrusion formed on one of said sector and said brake pedal lever, and at least one bore for receiving said protrusion formed on the other of said sector and said brake pedal lever, and wherein said fastening means comprises a connecting pin for penetrating said sector and said brake pedal lever and connecting therebetween; a pawl having at least a tooth at one end thereof, said pawl being pivotally mounted on said bracket and biased toward said sector so that said tooth of said pawl engages with said teeth of said sector; and a release lever pivotally mounted on said bracket and associated with said pawl for disengaging said pawl from said sector.
Claim 2
Dependent Claim
190 words
A pedal-operated parking brake for use in an automotive vehicle comprising: a bracket secured to a vehicle body; a brake pedal lever pivotally mounted on said bracket; a sector fixed to said brake pedal lever through positioning means for positioning said sector on said brake pedal lever, and fastening means for fastening said sector to said brake pedal lever, said sector having an arcuate end portion with teeth formed thereon, said positioning means having at least one protrusion formed on one of said sector and said brake pedal lever, and at least one bore for receiving said protrusion formed on the other of said sector and said brake pedal lever, and wherein said fastening means comprises a connecting pin for penetrating said sector and said brake pedal lever and connecting therebetween; a pawl having at least a tooth at one end thereof, said pawl being pivotally mounted on said bracket and biased toward said sector so that said tooth of said pawl engages with said teeth of said sector; and a release lever pivotally mounted on said bracket and associated with said pawl for disengaging said pawl from said sector.
Claim 3
Dependent Claim
31 words
A pedal-operated parking brake for use in an automotive vehicle as set forth in claim 1, wherein said connecting pin is calked for connecting said sector and said brake pedal lever.
Claim 4
Dependent Claim
198 words
A pedal-operated parking brake for use in an automotive vehicle comprising: a bracket secured to a vehicle body; a brake pedal lever pivotally mounted on said bracket; a sector fixed to said brake pedal lever, said sector having an arcuate end portion with teeth formed thereon; a pawl having at least a tooth at one end thereof, said pawl being pivotally mounted on said bracket and biased toward said sector so that said tooth of said pawl engages with said teeth of said sector; a release lever pivotally mounted on said bracket and associated with said pawl for disengaging said pawl from said sector; and a damper mounted on said bracket, said damper including a support pin secured to said bracket on an axis substantially parallel with a pivot axis of said brake pedal lever for blocking rotation of said brake pedal lever moving perpendicularly to said pivot axis, said support pin having a tapered free end portion with a top end and a flange portion gradually extending outwardly therefrom, and said damper including a cylindrical resilient member mounted on said support pin through said top end of said free end portion and held by said flange portion.
Claim 5
Dependent Claim
198 words
A pedal-operated parking brake for use in an automotive vehicle comprising: a bracket secured to a vehicle body; a brake pedal lever pivotally mounted on said bracket; a sector fixed to said brake pedal lever, said sector having an arcuate end portion with teeth formed thereon; a pawl having at least a tooth at one end thereof, said pawl being pivotally mounted on said bracket and biased toward said sector so that said tooth of said pawl engages with said teeth of said sector; a release lever pivotally mounted on said bracket and associated with said pawl for disengaging said pawl from said sector; and a damper mounted on said bracket, said damper including a support pin secured to said bracket on an axis substantially parallel with a pivot axis of said brake pedal lever for blocking rotation of said brake pedal lever moving perpendicularly to said pivot axis, said support pin having a tapered free end portion with a top end and a flange portion gradually extending outwardly therefrom, and said damper including a cylindrical resilient member mounted on said support pin through said top end of said free end portion and held by said flange portion.
Claim 6
Dependent Claim
73 words
A pedal-operated parking brake for use in an automotive vehicle as set forth in claim 3, wherein an inner diameter of a hollow portion of said cylindrical resilient member is smaller than an outer diameter of a body portion of said support pin surrounded by said cylindrical resilient member, and an outer diameter of said top end of said free end portion is smaller than said inner diameter of said cylindrical resilient member.
References Cited (Backward Citations)
CA725889A
Cited
DE2156736A1
Cited
JPS5522A
Cited
GB2041471A
Cited
JPS5644955U
Cited
JPS5717854U
Cited
JPS5737056A
Cited
JPS5780555A
Cited
US4441380A
Cited
US4597307A
Cited
GB2156750A
Cited
US4621538A
Cited
US4773278A
Cited
GB2184524A
Cited
US4800774A
Cited
US4819500A
Cited
US4841798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |