Patent US4723811A successfully refreshed from Google Patents.
US4723811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front body structure for motor vehicle
Assignee: Mazda Motor Corp
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Filing: 1986-04-25
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Granted: 1988-02-09
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Expires: 2006-04-25
Abstract
Abstract A vehicle body front structure including a wheel apron extending forward from a hinge pillar and having a front end connected with the radiator shroud. A wheel apron reinforcement structure comprises an inner panel member and an outer panel member. The inner panel member extends between the hinge pillar and the radiator shroud and connected to the wheel apron. The outer panel member is connected to the inner member to form a structure of closed cross-section which extends from the hinge pillar to a position rearward the radiator shroud. The structure of closed cross-section has a height which increases toward rearward. The hinge pillar is of a closed cross-section and provided with reinforcement ribs which bridge the space in the hinge pillar at a heightwise position where the wheel apron reinforcement is connected to the hinge pillar.
Inventors
- 👤 Hayatsugu Harasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:57
CPC Classifications
B; B62; B62D; B62D25/00; B62D25/08; B62D25/082; B62D25/088
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
247 words
A motor vehicle front body structure comprising a pair of wheel aprons, each extending substantially longitudinally to define a side wall of an engine compartment, a hinge pillar structure of a closed cross-section having a front wall and a rear wall, said wheel apron being connected at a rear end with said hinge pillar structure, a wheel apron reinforcement structure provided on an outer side of each wheel apron extending substantially longitudinally and connected at a rear end with said hinge pillar, said wheel apron reinforcement structure having an upper edge portion extending substantially horizontally and having a heightwise dimension which increases in a rearward direction, reinforcement means including a first reinforcement member located extending across an internal space of said hinge pillar structure to connect said front and rear walls of said hinge pillar structure at a portion where said wheel apron reinforcement structure is connected with said hinge pillar structure and a second reinforcement member vertically spaced from and located above said first reinforcement member inside said internal space, said second reinforcement member being located at a heightwise position corresponding to the upper edge portion of said wheel apron reinforcement structure to extend across the internal space of said hinge pillar structure, said hinge pillar structure including a lower pillar and an upper pillar, said lower pillar having a lower end portion connected with an upper end portion of said lower pillar, said lower pillar having a lower end wall forming said second reinforcement member.
Claim 2
Dependent Claim
247 words
A motor vehicle front body structure comprising a pair of wheel aprons, each extending substantially longitudinally to define a side wall of an engine compartment, a hinge pillar structure of a closed cross-section having a front wall and a rear wall, said wheel apron being connected at a rear end with said hinge pillar structure, a wheel apron reinforcement structure provided on an outer side of each wheel apron extending substantially longitudinally and connected at a rear end with said hinge pillar, said wheel apron reinforcement structure having an upper edge portion extending substantially horizontally and having a heightwise dimension which increases in a rearward direction, reinforcement means including a first reinforcement member located extending across an internal space of said hinge pillar structure to connect said front and rear walls of said hinge pillar structure at a portion where said wheel apron reinforcement structure is connected with said hinge pillar structure and a second reinforcement member vertically spaced from and located above said first reinforcement member inside said internal space, said second reinforcement member being located at a heightwise position corresponding to the upper edge portion of said wheel apron reinforcement structure to extend across the internal space of said hinge pillar structure, said hinge pillar structure including a lower pillar and an upper pillar, said lower pillar having a lower end portion connected with an upper end portion of said lower pillar, said lower pillar having a lower end wall forming said second reinforcement member.
Claim 3
Dependent Claim
31 words
A front body structure in accordance with claim 1, wherein said reinforcement means includes a box-shaped reinforcement member having at least one wall bridging a space in said hinge pillar structure.
Claim 4
Dependent Claim
45 words
A front body structure in accordance with claim 2, wherein said hinge pillar structure is connected at a lower end with a side sill extending longitudinally rearward from said hinge pillar structure, said box-shaped reinforcement member having a lower wall connected with said side sill.
Claim 5
Dependent Claim
75 words
A front body structure in accordance with claim 2, wherein said hinge pillar structure comprises a substantially planar pillar inner panel and a pillar outer panel of a hat-shaped horizontal cross-section having a front, rear and outer walls, said outer panel being connected at edge portions of said front and rear walls with said inner panel to form a structure of closed cross-section, said box-shaped reinforcement being fitted and connected to said pillar outer panel.
Claim 6
Dependent Claim
32 words
A front body structure in accordance with claim 1, wherein said reinforcement means further includes a box-shaped reinforcement member having at least one wall bridging a space in said hinge pillar structure.
Claim 7
Dependent Claim
49 words
A front body structure in accordance with claim 1, wherein said wheel apron is provided with a suspension tower for receiving an upper end of a suspension assembly, said wheel apron reinforcement being located at a heightwise level substantially corresponding to an upper end portion of the suspension tower.
Claim 8
Dependent Claim
51 words
A front body structure in accordance with claim 1, further comprising a dash panel defining a rear wall of the engine compartment, said dash panel having a forwardly bent connecting flange at each side, said connecting flange being laid on and connected to a rear edge portion of the wheel apron.
Claim 9
Dependent Claim
59 words
A front body structure in accordance with claim 7, wherein said hinge pillar structure includes an inner panel and an outer panel which are connected together at side edge portions to form a structure of closed cross-section, said inner panel having a forward extension which is connected to said connecting flange of the dash panel and said wheel apron.
Claim 10
Dependent Claim
49 words
A front body structure in accordance with claim 8, wherein said inner panel is of a substantially planar configuration, said outer panel being of a hat-shaped horizontal cross-section having a front and rear walls, said front wall of the outer panel being inclined rearward toward a laterally outward direction.
Claim 11
Dependent Claim
39 words
A front body structure in accordance with claim 8, wherein said connecting flange of said dash panel is extended forward beyond a forward extension of said inner panel of said hinge pillar structure and connected to said wheel apron.
Claim 12
Dependent Claim
239 words
A motor vehicle front body structure comprising: a pair of wheel aprons, each extending substantially longitudinally to define a side wall of an engine compartment, a hinge pillar structure of a closed cross-section having a front wall and a rear wall, said wheel apron being connected at a rear end with said hinge pillar structure, a first wheel apron reinforcement structure provided on an outer side of each wheel apron extending substantially longitudinally and connected at a rear end with said hinge pillar, said first wheel apron reinforcement structure having an upper edge portion extending substantially horizontally and having a heightwise dimension which increases in a rearward direction, reinforcement means provided in said hinge pillar structure and connecting said front and rear walls of the hinge pillar structure, said hinge pillar structure including a lower pillar and an upper pillar, said upper pillar having a lower end portion connected with an upper end portion of said lower pillar, said reinforcement means including a first member bridging a space between said front and rear walls of said hinge pillar structure at a height corresponding substantially to a vertical center of said rear end of said first wheel apron reinforcement, a second wheel apron reinforcement provided on a rear portion of said wheel apron above said first wheel apron above reinforcement and extending between an upper portion of said wheel apron and an upper portion of said first wheel apron reinforcement.
Claim 13
Dependent Claim
239 words
A motor vehicle front body structure comprising: a pair of wheel aprons, each extending substantially longitudinally to define a side wall of an engine compartment, a hinge pillar structure of a closed cross-section having a front wall and a rear wall, said wheel apron being connected at a rear end with said hinge pillar structure, a first wheel apron reinforcement structure provided on an outer side of each wheel apron extending substantially longitudinally and connected at a rear end with said hinge pillar, said first wheel apron reinforcement structure having an upper edge portion extending substantially horizontally and having a heightwise dimension which increases in a rearward direction, reinforcement means provided in said hinge pillar structure and connecting said front and rear walls of the hinge pillar structure, said hinge pillar structure including a lower pillar and an upper pillar, said upper pillar having a lower end portion connected with an upper end portion of said lower pillar, said reinforcement means including a first member bridging a space between said front and rear walls of said hinge pillar structure at a height corresponding substantially to a vertical center of said rear end of said first wheel apron reinforcement, a second wheel apron reinforcement provided on a rear portion of said wheel apron above said first wheel apron above reinforcement and extending between an upper portion of said wheel apron and an upper portion of said first wheel apron reinforcement.
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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) | 1991-02-08 | 1991-08-10 | 1992-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-08 | 1995-08-10 | 1996-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-08 | 1999-08-10 | 2000-02-09 | $7700.00 | Window Closed / Lapsed |