US5271473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front body structure for automotive vehicle
Assignee: Mazda Motor Corp
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Filing: 1992-12-17
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Granted: 1993-12-21
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Expires: 2012-12-17
Abstract
Abstract A front body structure forms an engine compartment in front of which a flat heat exchanger, provided with a pair of cooling fan units projecting lengthwise and rearward therefrom and transversely arranged with a space therebetween, is positioned. The front body structure includes a front body frame structure, defining opposite side walls of the engine compartment, and a front end frame structure, defining a front end wall of the engine compartment, which includes an upper front cross member extending transversely between the side walls so as to form an upper front end of the engine compartment. Stay members extend downward from the upper front cross member and are arranged so that a space between adjacent stay members is formed for receiving a cooling fan unit. A lower front cross member, extending transversely of the car body between the opposite side walls, forms a lower front end of the engine compartment.
Inventors
- 👤 Yoshinori Ikeda
- 👤 Susumu Makimoto
- 👤 Tadayuki Shigeoka
- 👤 Makoto Tokuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:51
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/02; B60K11/04; B62; B62D; B62D25/00; B62D25/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
172 words
A front body structure of a car body for forming an engine compartment in which an engine is installed and in front of which a generally rectangular, box-shaped, flat heat exchanger, provided with a pair of cooling fan units, projecting lengthwise rearward therefrom and transversely arranged with a space therebetween, is positioned, said front body structure comprising: a front body frame structure defining opposite side walls of said engine compartment; a lower front cross member extending transversely of said car body between said opposite side walls so as to form a lower front end of said engine compartment; and a front end frame structure defining a front end wall of said engine compartment, said front end frame structure comprising: an upper front cross member extending transversely between said opposite side walls so as to form an upper front end of said engine compartment; and a plurality of stay members extending vertically from said upper front cross member and arranged so as to form spaces thereamong for receiving therein said cooling fan units.
Claim 2
Dependent Claim
172 words
A front body structure of a car body for forming an engine compartment in which an engine is installed and in front of which a generally rectangular, box-shaped, flat heat exchanger, provided with a pair of cooling fan units, projecting lengthwise rearward therefrom and transversely arranged with a space therebetween, is positioned, said front body structure comprising: a front body frame structure defining opposite side walls of said engine compartment; a lower front cross member extending transversely of said car body between said opposite side walls so as to form a lower front end of said engine compartment; and a front end frame structure defining a front end wall of said engine compartment, said front end frame structure comprising: an upper front cross member extending transversely between said opposite side walls so as to form an upper front end of said engine compartment; and a plurality of stay members extending vertically from said upper front cross member and arranged so as to form spaces thereamong for receiving therein said cooling fan units.
Claim 3
Dependent Claim
24 words
A front body structure as defined in claim 1, wherein at least one of said stay members is positioned between said cooling fan units.
Claim 4
Dependent Claim
56 words
A front body structure as defined in claim 1, wherein said front end frame structure further comprises a lower mounting member extending lengthwise and forward from a lower end of each stay member for mounting said generally rectangular, box-shaped, flat heat exchanger thereon so as to assemble said heat exchanger to said front end frame structure.
Claim 5
Dependent Claim
40 words
A front body structure as defined in claim 3, wherein said lower mounting member is formed with a hole into which a vertical mounting pin extending from a bottom wall of said generally rectangular box-shaped flat heat exchanger, is fitted.
Claim 6
Dependent Claim
53 words
A front body structure as defined in claim 4, wherein said front end frame structure further comprises an upper mounting member extending lengthwise and forward from said upper front cross member for holding said generally rectangular box-shaped flat heat exchanger so as to assemble said heat exchanger to said front end frame structure.
Claim 7
Dependent Claim
48 words
A front body structure as defined in claim 5, wherein said upper mounting member has a front bent portion extending downward and formed with a hole into which a horizontal mounting pin extending forward from a front wall of said generally rectangular box-shaped flat heat exchanger is fitted.
Claim 8
Dependent Claim
41 words
A front body structure as defined in claim 6, wherein said upper mounting member is further formed with a hole into which a vertical mounting pin extending from a top wall of said generally rectangular box-shaped flat heat exchanger is fitted.
Claim 9
Dependent Claim
51 words
A front body structure as defined in claim 6, wherein said generally rectangular box-shaped flat heat exchanger comprises a radiator and a condenser placed in order from said front end frame structure, said radiator being provided with said vertical mounting pin and said condenser being provided with said horizontal mounting pin.
Claim 10
Dependent Claim
29 words
A front body structure as defined in claim 1, wherein said front end frame structure is placed on and secured to said front body frame structure as one unit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-20 | 1997-06-21 | 1997-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-20 | 2001-06-21 | 2001-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-20 | 2005-06-21 | 2005-12-21 | $7700.00 | Window Closed / Lapsed |