US3729075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for a transverse power unit having an automatic transmission
Assignee: Automobiles Peugeot SA
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Filing: 1971-07-06
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Granted: 1973-04-24
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Expires: 1991-07-06
Abstract
Abstract Control mechanism for a power unit having an automatic transmission for interposition between a manually operated selector and a parking brake and a slide of a control. The mechanism comprises a rotatable control bar connected to the selector and fixed at one end to a lever connected by a rod provided with a ramp adapted to cooperate with a pawl for shifting the latter into or out of engagement with a toothed wheel of a parking brake. A spring is interposed between the rod and lever in such manner that the lever shifts the ramp through the medium of the spring to engage the pawl with the toothed wheel. The lever directly acts on the rod in the direction for disengaging the pawl from the toothed wheel. Connecting means connect the lever to the slide.
Inventors
- 👤 J Piret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:02
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/30; F16H63/34; F16H63/3416; B; B60; B60T; B60T1/00; B60T1/005; F16H59/00; F16H59/02; F16H59/08; F16H59/10; F16H61/00; F16H61/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
263 words
A control mechanism for a power unit having an automatic transmission, the mechanism being intended for operatively connecting a manually operated selector means to a parking brake toothed wheel and to a slide of a control and comprising in combination : support means, a rotatable control bar carried by the support means, a lever integral with the control bar and substantially perpendicular to the control bar, a guide device supported by the support means, a pawl movably supported by the support means for moving into and out of engagement with the parking brake toothed wheel, a rod guided in the guide device to be movable in a first direction and in a second direction, means defining a ramp carried by the rod and co-operative with the pawl so that movement of the rod in said first direction causes the pawl to engage the toothed wheel and movement of the rod in said second direction causes the pawl to disengage from the toothed wheel, first connecting means connecting the lever to the rod and comprising resiliently-yieldable means interposed between the lever and the rod and adapted and arranged to intervene in transmission of movement from the lever to the rod for movement of the rod in said first direction and coacting abutment means on the lever and on the rod respectively for direct transmission of movement from the lever to the rod for movement of the rod in said second direction, and second connecting means having one end pivoted to the lever and another end for pivotal connection to the slide of the control.
Claim 2
Dependent Claim
263 words
A control mechanism for a power unit having an automatic transmission, the mechanism being intended for operatively connecting a manually operated selector means to a parking brake toothed wheel and to a slide of a control and comprising in combination : support means, a rotatable control bar carried by the support means, a lever integral with the control bar and substantially perpendicular to the control bar, a guide device supported by the support means, a pawl movably supported by the support means for moving into and out of engagement with the parking brake toothed wheel, a rod guided in the guide device to be movable in a first direction and in a second direction, means defining a ramp carried by the rod and co-operative with the pawl so that movement of the rod in said first direction causes the pawl to engage the toothed wheel and movement of the rod in said second direction causes the pawl to disengage from the toothed wheel, first connecting means connecting the lever to the rod and comprising resiliently-yieldable means interposed between the lever and the rod and adapted and arranged to intervene in transmission of movement from the lever to the rod for movement of the rod in said first direction and coacting abutment means on the lever and on the rod respectively for direct transmission of movement from the lever to the rod for movement of the rod in said second direction, and second connecting means having one end pivoted to the lever and another end for pivotal connection to the slide of the control.
Claim 3
Dependent Claim
28 words
A mechanism as claimed in claim 1, wherein the first connecting means and the second connecting means are connected to the lever at neighboring positions on the lever.
Claim 4
Dependent Claim
100 words
A mechanism as claimed in claim 2, wherein the lever has substantially the shape of a circular sector having an apex portion and a radiused edge remote from the apex portion, the control bar is fixed substantially in a middle region of the sector,and the rod and the second connecting means are connected in the vicinity of the apex portion of the sector, the mechanism further comprising a flange along the radiused edge of the sector, notches in the flange and stop means adapted to resiliently yieldably engage any one of the notches in the manner of a ratchet arrangement.
Claim 5
Dependent Claim
64 words
A mechanism as claimed in claim 1, said abutment means comprising a tab portion on the lever through which which tab portion the rod freely extends, a radial projecting portion on the rod capable of abutting against said tab portion on a side of the tab portion remote from the ramp, said resiliently yieldable means being interposed between the tab portion and the ramp.
Claim 6
Dependent Claim
107 words
A mechanism as claimed in claim 1, comprising a stud on the lever, means defining a guide stem having an enlarged portion mounted on the stud, an extension on the rod and an end portion on the extension, an orifice in the end portion, said guide stem freely extending through the orifice, said resiliently yieldable means extending around the guide stem between said enlarged portion of the stem and the end portion of the extension, said coacting abutment means comprising an abutment face on the rod capable of abutting a face on said enlarged portion of the guide stem remote from the end portion of the extension.
Claim 7
Dependent Claim
39 words
A mechanism as claimed in claim 1, wherein said second connecting means is a link having a link branch at one end pivoted to the lever and a link branch at another end for pivotal connection to the slide.
Claim 8
Dependent Claim
60 words
A mechanism as claimed in claim 6, wherein said link has an intermediate branch portion which is adapted to be substantially parallel to the bottom of an oil sump in which sump the mechanism is intended to be housed, the sump covering the slide of the control and being attached to a lower face of a case of the transmission.
Claim 9
Dependent Claim
32 words
A mechanism as claimed in claim 1, wherein said second connecting means is an S-shaped link having one end pivoted to the lever and another end for pivotal connection to the slide.
Claim 10
Dependent Claim
86 words
A transverse power unit having an automatic transmission, comprising a transmission case having a lower face, a control unit secured to the lower face of the case, a control bar operatively connected to a manually controlled selector and rotatably mounted in said case, and a mechanism connecting an end of the control bar to the control unit and to a parking brake device, said lower face being transversely inclined to the horizontal and also constituting a joint plane for an oil sump secured to said case.
Claim 11
Dependent Claim
86 words
A transverse power unit having an automatic transmission, comprising a transmission case having a lower face, a control unit secured to the lower face of the case, a control bar operatively connected to a manually controlled selector and rotatably mounted in said case, and a mechanism connecting an end of the control bar to the control unit and to a parking brake device, said lower face being transversely inclined to the horizontal and also constituting a joint plane for an oil sump secured to said case.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |