Jet propelled boat

Patent metadata

Field	Value
Publication number	US-11364985-B2
Application number	US-202017099811-A
Country	US
Kind code	B2
Filing date	Nov 17, 2020
Priority date	Dec 25, 2019
Publication date	Jun 21, 2022
Grant date	Jun 21, 2022

Abstract

A jet propelled boat includes a boat body, a hatch, a pair of front end movement restrictors spaced apart from each other in a right-left direction in a vicinity of a front end of the hatch so as to restrict movement of the front end with respect to the deck, a rear end lock provided in a vicinity of a rear end of the hatch so as to restrict upward movement of the rear end, and a pair of rear end movement restrictors provided on both sides of the rear end lock in the right-left direction so as to restrict horizontal movement of the rear end.

First claim

What is claimed is:

1. A jet propelled boat comprising:
a boat body including a hull and a deck above the hull;
a hatch on the deck;
a pair of front end movement restrictors spaced apart from each other in a right-left direction in a vicinity of a front end of the hatch so as to restrict movement of the front end with respect to the deck;
a rear end lock provided in a vicinity of a rear end of the hatch to lock the hatch so as to prevent removal of the hatch from the deck by restricting upward movement of the rear end with respect to the deck; and
a pair of rear end movement restrictors provided on the hatch closer to the rear end lock than the pair of front end movement restrictors in a forward-rearward direction, the pair of rear end movement restrictors being located on both sides of the rear end lock in the right-left direction so as to restrict horizontal movement of the rear end.

2. The jet propelled boat according to claim 1 , wherein the hatch includes an engine hatch to cover from above an engine storage chamber provided in the boat body.

3. The jet propelled boat according to claim 1 , wherein the pair of rear end movement restrictors are provided in a vicinity of the rear end of the hatch on right and left sides of the rear end lock.

4. The jet propelled boat according to claim 1 , wherein the pair of rear end movement restrictors are provided outward of the pair of front end movement restrictors in the right-left direction.

5. The jet propelled boat according to claim 4 , wherein the pair of rear end movement restrictors are provided in a vicinity of both sides of the hatch in the right-left direction, respectively.

6. The jet propelled boat according to claim 1 , wherein the pair of rear end movement restrictors each include:
a tubular portion provided on one of the deck and the hatch and including a hole that extends in an upward-downward direction; and
a boss-shaped portion provided on the other of the deck and the hatch and inserted into the tubular portion such that horizontal movement of the boss-shaped portion is restricted.

7. The jet propelled boat according to claim 6 , wherein
the tubular portion is separate from the deck and is fixed to the deck; and
the boss-shaped portion is integral and unitary with the hatch.

8. The jet propelled boat according to claim 7 , wherein
the hatch includes an engine hatch to cover from above an engine storage chamber provided in the boat body;
the engine hatch includes an inner hatch and an outer hatch above the inner hatch; and
the pair of rear end movement restrictors each further include a fixing member to fix the inner hatch and the outer hatch to each other.

9. The jet propelled boat according to claim 8 , wherein
the outer hatch and the inner hatch include an outer fixing portion to which the fixing member is attached and a hollow inner fixing portion, respectively, and are fixed to each other by the fixing member in a state in which the outer fixing portion is placed inside the inner fixing portion from above; and
the pair of rear end movement restrictors restrict horizontal movement of the rear end of the engine hatch when the boss-shaped portion that functions as the inner fixing portion is inserted into the tubular portion in a state in which the outer hatch and the inner hatch are fixed to each other by the fixing member.

10. The jet propelled boat according to claim 9 , wherein the fixing member includes a bolt screwed into the outer fixing portion from below in a state in which the bolt is placed inside the tubular portion so as to jointly fasten the inner hatch and the outer hatch.

11. The jet propelled boat according to claim 10 , wherein the outer fixing portion includes a thicker portion including a female screw into which the bolt is screwed, and the thicker portion is thickened in a direction in which the female screw extends.

12. The jet propelled boat according to claim 10 , wherein the boss-shaped portion has a concave shape that is recessed upward, and includes, at its tip end, a bolt head storage to accommodate a head of the bolt.

13. The jet propelled boat according to claim 7 , wherein both the hatch and the tubular portion are made of a resin material.

14. The jet propelled boat according to claim 6 , wherein the boss-shaped portion has a diameter larger than a length of the tubular portion in the upward-downward direction.

15. The jet propelled boat according to claim 14 , wherein the diameter of the boss-shaped portion is larger than twice the length of the tubular portion in the upward-downward direction.

16. The jet propelled boat according to claim 6 , wherein the boss-shaped portion includes a tip end including a rounded and curved outer edge.

17. The jet propelled boat according to claim 6 , wherein
the boss-shaped portion has a tapered shape that gradually tapers toward a tip end of the boss-shaped portion; and
the hole of the tubular portion gradually tapers along the boss-shaped portion.

Assignees

• Yamaha Motor Co Ltd

Inventors

• Azuma Yo
• Suzuki Masaru
• Suzuki Tomohiro

Classifications

• B63B5/24

  made predominantly of plastics {(surf boards B63B32/57)} · CPC title

• B63B3/48

  Decks (planking B63B5/06) · CPC title

• B63B34/10

  Power-driven personal watercraft, e.g. water scooters (water jet propulsion B63H11/00; jet steering B63H25/46); Accessories therefor · CPC title

• B63H11/04

  by means of pumps · CPC title

• B63B19/14 Primary

  Hatch covers (opening devices in general E05F) · CPC title