US3865210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine compartment access door latch system
Assignee: Deere and Co
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Filing: 1974-04-19
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Granted: 1975-02-11
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Expires: 1994-04-19
Abstract
Abstract A pair of engine side shield structures are provided at the opposite sides of a vehicle engine and are supported on the frame of the vehicle. Each side shield structure includes a fixed baffle plate section, and upper and lower access doors which overlap the baffle section. The upper and lower doors are pivotally connected along lower edges thereof for swingable movement between respective closed positions wherein the panels are disposed vertically, one above the other, so as to block access to the inside of the engine compartment, and open positions wherein they are displaced angularly from their closed positions so as to permit access to the inside of the engine compartment. Integral with the lower door is an operator support structure which is located in the engine compartment when the lower door is in its closed position and which is located alongside the vehicle frame and projects outwardly therefrom to provide an operator support when the lower door is in its open position. Associated with the first door is a latch mechanism which can be padlocked in place so as to prevent unauthorized opening of the engine compartment, a further latch mechanism being associated with the second door and located such that it is entirely inside the engine compartment when the upper and lower doors are in their closed positions. A third latch mechanism is associated with the lower door and must be released before the first door can be opened to provide access to the latch mechanism associated with the second door.
Inventors
- 👤 Fummetti Cyril William Von
- 👤 David Dennis Latham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:50
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/06; B62D25/00; B62D25/08; B62D25/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
291 words
In an industrial vehicle of a type including a longitudinal frame supported on ground-engaging means, an engine located on the frame and located in an engine compartment bounded at its top by a hood, at one end by a grill housing and at its opposite sides by opposite, longitudinally extending, generally vertically disposed side shield structure, the improvement comprising: at least one of the side shield structures including separate first and second access doors located one adjacent the other between the frame and hood; door support means connected to the vehicle frame and disposed inside said compartment beside said doors; each of said doors being pivotally mounted on said support means for swingable movement between respective closed positions wherein the doors are generally vertically disposed and cooperate with the hood, frame and support means to block access to the compartment, and respective open positions displaced angularly from said operative positions, wherein access is permitted to the compartment for servicing the engine; manually operable first and second latch means connected to the support means and respectively operable for selective latching reception in first and second receptacle means respectively of said first and second doors for retaining said doors in their closed positions; said first latch means including manually operable security lock means positioned exteriorly of the compartment and operative for preventing removal of said first latch means from said first receptacle means; and said second latch means being located so as to be entirely inside said compartment whereby said security lock means must be unlocked, said second latch must be unlatched and the first door swung to its open position in order to provide access to the second latch means for permitting the unlatching thereof and the opening of the second door.
Claim 2
Dependent Claim
291 words
In an industrial vehicle of a type including a longitudinal frame supported on ground-engaging means, an engine located on the frame and located in an engine compartment bounded at its top by a hood, at one end by a grill housing and at its opposite sides by opposite, longitudinally extending, generally vertically disposed side shield structure, the improvement comprising: at least one of the side shield structures including separate first and second access doors located one adjacent the other between the frame and hood; door support means connected to the vehicle frame and disposed inside said compartment beside said doors; each of said doors being pivotally mounted on said support means for swingable movement between respective closed positions wherein the doors are generally vertically disposed and cooperate with the hood, frame and support means to block access to the compartment, and respective open positions displaced angularly from said operative positions, wherein access is permitted to the compartment for servicing the engine; manually operable first and second latch means connected to the support means and respectively operable for selective latching reception in first and second receptacle means respectively of said first and second doors for retaining said doors in their closed positions; said first latch means including manually operable security lock means positioned exteriorly of the compartment and operative for preventing removal of said first latch means from said first receptacle means; and said second latch means being located so as to be entirely inside said compartment whereby said security lock means must be unlocked, said second latch must be unlatched and the first door swung to its open position in order to provide access to the second latch means for permitting the unlatching thereof and the opening of the second door.
Claim 3
Dependent Claim
24 words
The industrial vehicle defined in claim 1 wherein said door support means includes a longitudinally extending upright baffle plate means positioned alongside the engine.
Claim 4
Dependent Claim
43 words
The industrial vehicle defined in claim 1 wherein said first and second doors respectively include horizontal lower edges which extend parallel to each other; and first and second hinge means respectively connected between the support means and said first and second lower edges.
Claim 5
Dependent Claim
20 words
The industrial vehicle defined in claim 1 wherein the second hinge means include means connected to said baffle plate means.
Claim 6
Dependent Claim
152 words
The industrial vehicle defined in claim 1 wherein said first latch means includes a first latch element mounted for vertical swinging movement about a horizontal, longitudinal axis between latched and unlatched positions; said first latch element including an outer end located outside of said compartment and having a notch formed in an underside portion thereof; said first receptacle means being an aperture in said first door located such that a lower edge portion thereof is received in said notch when the first door is in its operative position and the latch element is in said latched position; biasing means urging said first latch element to said latching position; said security lock means being mounted on the outer end of said latch element and including blocking means engageable with said first panel for preventing said latch element from being removed from said aperture whereby said latch element is retained in its latched position.
Claim 7
Dependent Claim
152 words
The industrial vehicle defined in claim 1 wherein said first and second doors are located one above the other and are respectively mounted for swingable movement about respective horizontal longitudinally extending axes; said second latch means including at least one latch rod having a central vertical portion mounted for rotation about a vertical axis passing longitudinally therethrough, and having a first end portion disposed adjacent said second door when the latter is in its closed position, said first end forming a latching portion offset from and extending parallel to said central vertical portion for tracing a predetermined arc when said rod is pivoted about said vertical axis between a latched and an unlatched position; said second door being provided with an arcuate receptacle means disposed for receiving said latching portion of said latch rod when the latter is rotated to its latched position while the second door is in its closed position.
Claim 8
Dependent Claim
117 words
The industrial vehicle defined in claim 6 wherein said one latch rod includes a second end disposed adjacent said second door, when the latter is in its closed position, and forming a handle offset from said vertical axis and grippable by an operator for rotating said latch rod between latched and unlatched positions; and said handle including a portion disposed closely adjacent said first door, when the latter is closed and the latch rod is in its latched position, and such that the first door blocks movement of the handle and thus movement of the latch rod to its unlatched position thereby ensuring that the latch rod will not become accidentally unlatched during operation of the vehicle.
Claim 9
Dependent Claim
156 words
The industrial vehicle defined in claim 2 wherein said baffle plate means includes a plate which appears substantially rectangular in side view and which is angled between upper and lower edges thereof such that upper and lower portions of the plate form an inwardly opening angle; said support means including a pair of vertical plate members respectively joined to opposite ends of the plate, as considered in the longitudinal direction; and a third latching means mounted on said first door so as to be disposed between said vertical plate members when the first door is in said closed position; said first and second vertical plates respectively having first and second apertures therein; said third latching means including first and second rods respectively mounted for reciprocable movement into and out of said last-mentioned first and second apertures when said first door is in said closed position; and biasing means urging said rods towards reception in said apertures.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |