Pilot house isolator
A boat having a hull and a separate a passenger compartment with one or more suspension elements suspending the passenger compartment structure relative to the hull, the one or more suspension elements provide means for isolating the passenger compartment from shocks, vibrations and sounds experienced by the hull. According to one aspect of the invention, the means for isolating the passenger compartment from shocks, vibrations and sounds experienced by the hull include the one or more suspension elements formed as blocks of resiliently compressible material.
The present invention relates to a marine vehicle, and in particular to mechanical isolation of a pilot house or other cabin structure from a hull portion of a marine vehicle.
BACKGROUND OF THE INVENTIONIt is well known that the cabin, cockpit and pilot house of typical marine vehicles, i.e., pleasure boats, are rigidly fixed to the boat hull. Accordingly, particularly in planing hull boats, riders in the boat are constantly bounced and jarred during high-speed travel over rough or choppy water. As a result of this bouncing and jarring, the ride is uncomfortable, and manual control of the boat's speed and heading may be degraded.
SUMMARY OF THE INVENTIONThe present invention overcomes limitations of the prior art by providing a boat having a hull, a passenger compartment structure that is separate from the hull, and one or more suspension elements suspending the passenger compartment structure relative to the hull.
According to one aspect of the invention, the one or more suspension elements provide means for isolating the passenger compartment from shocks, vibrations and sounds experienced by the hull.
According to one aspect of the invention, the means for isolating the passenger compartment from shocks, vibrations and sounds experienced by the hull include the one or more suspension elements formed as blocks of resiliently compressible material.
According to another aspect of the invention, the means for isolating the passenger compartment from shocks, vibrations and sounds experienced by the hull include a plurality of the suspension elements formed of a combination compression spring and hydraulic vibration damper.
According to another aspect of the invention, the hull further includes twin hulls configured as a catamaran, and a deck plate is provided as a generally planar plate spanning the twin hulls.
According to another aspect of the invention, the one or more suspension elements are a plurality of the suspension elements arranged between the passenger compartment structure and the deck plate.
According to another aspect of the invention, the boat includes an extension limiter capable of limiting separation of the passenger compartment structure relative to the hull.
According to still other aspects of the invention, a method is provided for forming the boat of the invention having the means for isolating the passenger compartment from shocks, vibrations and sounds experienced by the hull.
Other aspects of the invention are detailed herein.
BRIEF DESCRIPTION OF THE DRAWINGSThe foregoing aspects and many of the attendant advantages of this invention will become more readily appreciated as the same becomes better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:
In the Figures, like numerals indicate like elements.
Passenger compartment 14 is spaced off the hull 12, or deck plate 24 if present, of the boat 10 with one or more of the suspension elements 16 interposed and coupled between the passenger compartment 14 and the hull 12 or deck plate 24 (shown). The suspension elements 16 are optionally arranged between the passenger compartment floor 18 and the hull 12 or deck plate 24, or deck plate 24 if present, in multiple positions selected to adequately support the passenger compartment floor 18.
During travel of the boat 10, up and down oscillatory movement of the hull 12 and attached deck plate 24, if present, will occur and this movement is transmitted to the passenger compartment floor 18 via suspension elements 16. An optional extension limiter 34 is capable of limiting the maximum amount of separation or upward vertical travel which can occur in the passenger compartment 14 away from the hull 12, or the deck plate 24 if present. By example and without limitation, the extension limiter 34 is a threaded shank 36 which passes through the passenger compartment floor 18 and deck plate 24 and includes a capture mechanism 38 on either end, such as opposing nuts and washers. The extension limiter 34 optionally permits a limited degree of separation movement of the compartment floor 18 relative to the deck plate 24. For example, the extension limiter 34 optionally extends beyond the passenger compartment floor 18 or deck plate 24 (shown) a selected amount that is, for example, calculated to protect the suspension elements 16 from catastrophic failure in the event of an extreme separation of the passenger compartment 14 and the hull 12, or the deck plate 24 if present. The compartment floor 18 and the hull 12, or the deck plate 24 if present, both optionally include reinforcements 40 such as extra plate thickness (shown) in the vicinity of the extension limiter 34 to protect against catastrophic failure and sudden separation of the passenger compartment structure 14 from the hull 12, or the deck plate 24 if present.
Here, the optional extension limiter 34 includes a flexible cable 48 capable of limiting the maximum amount of separation or upward vertical travel which can occur in the passenger compartment 14 away from the hull 12, or the deck plate 24 if present. The cable 48 is affixed to the hull 12, or the deck plate 24 if present, and the passenger compartment 14, for example, the passenger compartment walls 20, and is arranged so as to be normally in a slack condition, but to be in a taut condition where excessive upward movement of the passenger compartment 14 occurs relative to the hull 12, or the deck plate 24 if present.
Alternatively, as illustrated by example and without limitation in
Optionally, the optional extension limiter 34 is provided for limiting the maximum amount of separation or upward vertical travel which can occur in the passenger compartment 14 away from the hull 12, or the deck plate 24 if present. By example and without limitation, the extension limiter 34 includes the threaded shank 36 which passes through the passenger compartment floor 18 and deck plate 24, if present, and includes the capture mechanisms 38 on either end, such as opposing nuts and washers. The extension limiter 34 optionally permits a limited degree of separation movement of the compartment floor 18 relative to the deck plate 24. For example, the extension limiter 34 optionally extends beyond the passenger compartment floor 18 or deck plate 24 (shown) a selected amount that is, for example, calculated to protect the suspension elements 16 from catastrophic failure or excessive dislocation in the event of an extreme separation of the passenger compartment 14 and the hull 12, or the deck plate 24 if present. The compartment floor 18 and the hull 12, or the deck plate 24 if present, both optionally include reinforcements 40 such as extra plate thickness (shown) in the vicinity of the extension limiter 34 to protect against catastrophic failure and sudden separation of the passenger compartment structure 14 from the hull 12, or the deck plate 24 if present.
While the preferred embodiment of the invention has been illustrated and described, it will be appreciated that various changes can be made therein without departing from the spirit and scope of the invention. For example, materials may be substituted for the different components of the boat and suspension elements of the invention without departing from the spirit and scope of the invention. Therefore, the inventor makes the following claims.
Claims
1. A boat, comprising:
- a hull;
- a passenger compartment structure that is separate from the hull; and
- one or more suspension elements elastically suspending the passenger compartment structure relative to the hull.
2. The boat of claim 1 wherein the one or more suspension elements further comprise means for isolating the passenger compartment from shocks, vibrations and sounds experienced by the hull.
3. The boat of claim 1 wherein the one or more suspension elements further comprise blocks of resiliently compressible material.
4. The boat of claim 1 wherein the one or more suspension elements further comprise a plurality of suspension elements each further comprising a combination compression spring and hydraulic vibration damper.
5. The boat of claim 1 wherein the hull further comprises twin hulls configured as a catamaran having a substantially rigid deck plate spanning the twin hulls, wherein the one or more suspension elements elastically suspend the passenger compartment structure relative to the deck plate.
6. The boat of claim 1, further comprising an extension limiter limiting separation of the passenger compartment structure relative to the hull.
7. The boat of claim 1, further comprising a plurality of the suspension elements arranged between the passenger compartment structure and the hull.
8. A boat, comprising:
- a planing hull; and
- a passenger compartment structure separated from the hull by at least one elastic connection assembly interposed and coupled between the passenger compartment and the hull.
9. The boat of claim 8, further comprising a deck plate attached to the hull between the hull and the passenger compartment; and
- wherein the elastic connection assembly is further interposed and coupled between the passenger compartment and the deck plate.
10. The boat of claim 8, further comprising a plurality of the elastic connection assemblies interposed and coupled between the passenger compartment and the deck plate.
11. The boat of claim 10 wherein the elastic connection assemblies further comprise elastic connection assemblies selected from the group of elastic connection assemblies including: shock absorbers, coil springs, and blocks of resiliently compressible material.
12. The boat of claim 9 wherein the hull further comprises a catamaran hull, and the deck plate further spans the twin hulls.
13. The boat of claim 9, further comprising one or more extension limiters coupled between the passenger compartment and the hull.
14. A method for isolating a boat passenger compartment from shocks, vibrations and sounds, the method comprising:
- in a boat having a planing hull,
- structuring a passenger compartment separately from the hull; and
- resiliently suspending the passenger compartment relative to the hull.
15. The method of claim 14 wherein resiliently suspending the passenger compartment further comprises coupling one or more suspension elements between the passenger compartment and the hull.
16. The method of claim 15, further comprising structuring a boat having a planing hull with a deck plate; and
- wherein resiliently suspending the passenger compartment relative to the hull further comprises resiliently suspending the passenger compartment from the deck plate.
17. The method of claim 16, further comprising structuring a boat having double planing hulls structured as a catamaran with the deck plate spanning between the hulls.
18. The method of claim 15 wherein the one or more suspension elements each further comprises one of a shock absorber, a coil spring, and a block of resiliently compressible material.
19. The method of claim 15 wherein: structuring a passenger compartment separately from the hull further comprises structuring a passenger compartment having a floor member that is structured separately from the hull; and
- resiliently suspending the passenger compartment relative to the hull further comprises resiliently suspending the passenger compartment floor member relative to the hull.
20. The method of claim 14, further comprising coupling one or more extension limiters between the passenger compartment and the hull, the one or more extension limiters being capable of limiting a maximum separation between the passenger compartment and the hull.
Type: Application
Filed: Dec 30, 2005
Publication Date: Jul 5, 2007
Inventor: Jeffrey Carnevali (Seattle, WA)
Application Number: 11/322,832
International Classification: B63B 1/00 (20060101); B63B 1/20 (20060101);