US4457558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Up and down moving mechanism for an air spoiler associated with a movable grill
Assignee: Aisin Corp
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Filing: 1982-04-21
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Granted: 1984-07-03
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Expires: 2002-04-21
Abstract
Abstract An up and down moving mechanism for an air spoiler associated with a movable grill for reducing air resistance is disclosed. The moving mechanism includes a speed sensor detecting the driving speed and transmitting a signal to a control circuit. A thermostat connects to a linkage for controlling the opening and closing of the movable grill in response to the water temperature in a radiator. A motor rotates in response to instructions transmitted from the control circuit and opens a gap between the air spoiler and a bumper. A first circuit detects the position of a thermostat rod and transmits a signal to the control circuit to lift the air spoiler. A second circuit detects a position of a motor rod and transmits a signal to the control circuit to stop a rotation of the motor.
Inventors
- 👤 Masanobu Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:21
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/08; B60K11/085; B62; B62D; B62D35/00; B62D35/005; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/82; Y02T10/88
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
172 words
In a motor vehicle including a front bumper, a movable air spoiler positioned below said bumper, a movable grill and an engine including a radiator positioned behind said grill, an apparatus for moving said air spoiler between a first position in which a gap is formed between said air spoiler and said bumper and a second position in which said gap is closed, said apparatus comprising: first detecting means for detecting the road speed of said vehicle; a thermostat including movable output means connected to said grill for opening and closing said grill, said thermostat being actuated in response to the temperature of the water in said radiator; means for moving said air spoiler between said first and second postions; second detecting means for detecting the position of said thermostat output means; third detecting means for detecting the position of said means for moving said air spoiler; and control circuit means receiving signals from said first, second and third detecting means and supplying signals to said means for moving said air spoiler.
Claim 2
Dependent Claim
172 words
In a motor vehicle including a front bumper, a movable air spoiler positioned below said bumper, a movable grill and an engine including a radiator positioned behind said grill, an apparatus for moving said air spoiler between a first position in which a gap is formed between said air spoiler and said bumper and a second position in which said gap is closed, said apparatus comprising: first detecting means for detecting the road speed of said vehicle; a thermostat including movable output means connected to said grill for opening and closing said grill, said thermostat being actuated in response to the temperature of the water in said radiator; means for moving said air spoiler between said first and second postions; second detecting means for detecting the position of said thermostat output means; third detecting means for detecting the position of said means for moving said air spoiler; and control circuit means receiving signals from said first, second and third detecting means and supplying signals to said means for moving said air spoiler.
Claim 3
Dependent Claim
65 words
The apparatus of claim 1 wherein said output means of said thermostat comprises a rod movable into and out of said thermostat and a linkage connected between said rod and said grill, and wherein said thermostat is adapted to close said grill when said water temperature is below a predetermined value and to open said grill when said water temperature is above said predetermined value.
Claim 4
Dependent Claim
20 words
The apparatus of claim 1 wherein said air spoiler is pivoted to said vehicle at an end opposite said gap.
Claim 5
Dependent Claim
60 words
The apparatus of claim 1 wherein said means for moving said air spoiler comprises a rotary member and a screw shaft connected between said rotary motor and said air spoiler, and wherein said control circuit provides a signal to said rotary motor for moving said air spoiler when said first and second detecting means provide signals to said control circuit.
Claim 6
Dependent Claim
16 words
The apparatus of claim 4 wherein said screw shaft is pivotally connected to said air spoiler.
Claim 7
Independent Claim
33 words
The apparatus of claims 4 or 5 wherein said rotary motor is positioned such that said air spoiler moves to said first position as said screw shaft is extended from said rotary motor.
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) | 1987-07-03 | 1988-01-02 | 1988-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-03 | 1992-01-02 | 1992-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-03 | 1996-01-02 | 1996-07-03 | $7700.00 | Window Closed / Lapsed |