JPH06227485A - Rear grip of small planing boat - Google Patents

Abstract

(57) [Summary] [Purpose] The rear grip for passengers to grip is improved in the material yield when molding plastic, the molding process is shortened, and it is gripped when attached to the hull and used. The vibration transmitted to the section is reduced to improve the feeling of boarding. [Structure] A base member 2 of a plastic hollow body fixed to a deck 1 with a rear grip 20 for a passenger to grip.
1 and the base member 2 through the left and right brackets 23.
1 and a grip member 22 made of a portal-shaped plastic hollow body which is connected to 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear grip provided at a rear end portion of a deck of a small planing boat for a passenger of the small planing boat to grasp.

[0002]

2. Description of the Related Art As a small planing boat, while riding on the back of the deck and holding the handle (usually the bar handle) located on the upper front of the hull, it runs around in the water near the coast mainly for leisure or sports. Type is used. This type of small planing boat generally drives an engine mounted in the engine room formed at the front of the hull to drive a propulsion unit mounted at the rear of the hull and maneuver while changing the thrust direction of the propulsion unit. Is configured.

A water injection device or the like is used as the propulsion device, and the water injection device ejects water sucked from the bottom of the ship backward by a jet pump to obtain thrust. In the case of this water injection device, normally, the steering is performed by changing the direction of the water injection duct. The propulsion unit is mounted in a lower open recess formed in the rear portion of the hull, and the recess is covered with a cover that substantially matches the bottom of the ship.

By the way, there is a type of small-sized planing boat in which a saddle-type seat is provided at the rear portion of the deck and two or more people can ride on the seat. When two people ride on this small planing boat, it is common for the fellow passenger to get on board by holding it by the driver or a belt provided with a seat in order to support his / her body during traveling. However, with such a boarding posture alone, it may be boring or tired when aboard a ship for a long time. Therefore, it has been proposed to provide a rear grip at the rear end of the deck for passengers to grip with their hands. The rear grip is usually made of a synthetic resin molded product such as polypropylene in order to have a predetermined strength and a light weight. Also, as this rear grip, from the viewpoint of easy gripping, the overall shape is a gate shape,
A type in which both ends thereof are fixed to a deck is generally used. As a document showing the related art
There is number 5090.

[0005]

However, in the case of the rear grip of the conventional small planing boat, for example, when it is manufactured by blow molding or injection molding, it is difficult to improve the material yield due to its shape, and the molding is difficult. The time step tends to be long, and it is difficult to improve productivity sufficiently. Further, it is also difficult to sufficiently dampen the vibration transmitted from the hull to the grip portion of the rear grip during traveling.

The present invention has been made in view of the above-mentioned conventional techniques, and an object of the present invention is to easily improve the yield of materials and to shorten the steps of plastic molding. Moreover, it is an object of the present invention to provide a rear grip of a small planing boat that can effectively dampen the vibration transmitted from the hull to the grip portion during traveling.

[0007]

According to the first aspect of the invention, a passenger seated on a saddle-type seat provided on a deck can grasp the passenger,
In a rear grip of a small planing boat provided at a rear end portion of a deck, the rear grip comprises a base member attached to the deck, brackets attached to the left and right of the base member, and a gate-shaped grip member attached to the left and right brackets. The object described above is achieved by forming the base member and the grip member from a plastic molded product.

According to a second aspect of the present invention, in addition to the above structure, a shock absorbing member made of a rubber-like elastic body is interposed between the bracket and the base member or between the bracket and the grip member. This provides a rear grip of a small planing boat that can achieve the above-mentioned object and further improve the vibration damping action.

According to the invention of claim 3, in the rear grip of the small planing boat provided at the rear end of the deck, a passenger near a saddle type seat provided on the deck grasps the rear grip of the hull in the vicinity of the center line of the hull. The above-mentioned object is achieved by adopting a structure in which the left and right members are formed of a plastic molded product along with the left and right members, and the left and right members are fixed to the deck in a state where they are connected to each other. It is a thing.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a right side view showing an embodiment of a small planing boat equipped with a rear grip to which the present invention is applied, and FIG.
2 is a plan view of the small planing boat of FIG. 1 and 2, the hull is formed of a hollow body in which a deck 1 and a hull 2 are joined by flange portions 3 and 4 around the deck 1 and the hull 2, respectively. The deck 1 and the hull 2 are usually made of a plastic molded product (including a plastic containing reinforcing fiber). An engine 6 (FIG. 1) is mounted in an engine room formed in the front portion of the inside of the hull, and the drive shaft 7 is driven by the engine 6.
The propulsion unit 8 mounted on the rear part of the hull via (Fig. 1) (Fig. 1)
Is driven. The propulsion unit 8 is a jet pump.

The rear portion of the deck 1 (the rear portion of the deck) is a region for the operator to board, and a protrusion 9 extending forward and backward is formed at the center of the rear portion of the deck. The seat 10 is attached. The saddle-shaped seat 10 has a structure in which, in addition to the driver, one or two fellow passengers can ride in front and rear. Deck 1
An operator riding on the rear part of the vehicle grips the grips at both ends of the handle (bar handle) 11 arranged on the deck 1 to carry out the operation. In the illustrated example, the central portion of the handle 11 is covered by the handle cover 12.

On both sides of the projecting portion 9 (seat 10) of the deck 1, steps 13 and 13 for passengers to put their feet on are formed. Note that the alternate long and short dash line W in FIG. 1 exemplifies the water surface when the ship is stopped, and the alternate long and short dash line X in FIG. 1 exemplifies the water line (water surface) during traveling (sliding). The passenger puts his / her feet on the steps 13 and 13 on both sides and stands upright or in the seat 10
The driver sits on the boat, and the driver grips the grip portion of the steering wheel 11 to operate. The propulsion device sucks water from the suction port 15 (FIG. 1) formed in the ship bottom 14 by the jet pump 8 driven by the engine 6, and transfers the water rearward from the stern 16 (from the duct of the propulsion device 8). It has a structure that ejects thrust to obtain thrust.

In FIGS. 1 and 2, a rear grip 20 is attached to the rear end portion of the projecting portion 9 of the deck 1 for a passenger sitting on the seat 10 to grip.
3 is a side view of the rear grip 20, FIG. 4 is a plan view of the rear grip 20, and FIG. 5 is a rear view of the rear grip 20 taken along line 5-5 in FIG.

1 to 5, the rear grip 20 has a divided structure composed of a base member 21 and a grip member 22. That is, the rear grip 20 includes a base member 21 attached to the deck 1, brackets 23 attached to both left and right sides of the base member 21, and a gate-shaped grip member 22 attached to the left and right brackets 23. ing. The base member 21 and the grip member 22 are formed of a plastic molded product or a light alloy (aluminum or the like) casting.

In the illustrated example, the base member 21 has a shape substantially along the plane shape of the rear end portion of the projecting portion 9 of the deck 1, and the grip member 22 is the base member 2.
1 has a substantially gate-like shape that protrudes from the upper surface of the sheet 1 to the rear side of the sheet 10 to the upper surface of the sheet 10 or a position slightly higher (for example, 5 to 20 mm). A portion 27 of the grip member 22 which is higher than the seat 10 serves as a grip portion which a passenger can easily grip.

FIG. 6 is a partial sectional view showing a state in which the base member 21 and the grip member 22 are joined by the bracket 23 along the line 6-6 in FIG. 4, and FIG. 7 is a line 7-7 in FIG.
FIG. 6 is a partial cross-sectional view showing a state in which the base member 21 is fixed to the protruding portion 9 of the deck 1 along the line. As shown in FIGS. 6 and 7, the base member 21 and the grip member 22 are made entirely hollow to reduce the weight.

In FIG. 6, the bracket 23 is fastened to the upper surface of the base member 21 and the lower surface of the grip member 22 with bolts 24 and 25, respectively. In this embodiment, as shown in FIG.
3 are fastened to the base member 21 and the grip member 22 at two places respectively. In FIG. 7, the base member 21 is fastened and fixed to the upper surface of the projecting portion 9 with bolts 26 at predetermined positions (four positions on the front, rear, left and right in the illustrated example).

According to the embodiment described above, the rear grip 20 is divided into the base member 21 and the grip member 22,
Since these are assembled together, it is possible to improve the yield of materials when molding with plastic or light alloy and to shorten the molding process. Also,
Because of the divided structure, compared to the case of an integrally molded product, a shock absorbing effect against vibration transmitted from the hull to the grip portion at the time of traveling can be obtained, and the bodily vibration at the grip portion can be reduced. Furthermore, when the base member 21 or the grip member 22 is made of plastic, the gripping portion 2 is also due to the vibration absorbing ability of the plastic material itself.
Vibration transmission to 7 can be reduced.

[0019]

As is apparent from the above description, according to the first aspect of the invention, the small size provided at the rear end portion of the deck for the passenger seated on the saddle type seat provided on the deck to grip In a rear grip of a planing boat, the base member attached to the deck, brackets attached to the left and right of the base member, and gate-shaped grip members attached to the left and right brackets, and the base member and the grip member are molded by plastic. Since it is made of a product, it is possible to easily improve the material yield and shorten the plastic molding process.
Moreover, there is provided a rear grip of a small planing boat capable of effectively absorbing the vibration transmitted from the hull to the grip portion during traveling. According to the invention of claim 2, in addition to the above configuration, a shock absorbing member of a rubber-like elastic body is interposed between the bracket and the base member or between the bracket and the grip member. In addition to the above effects, there is provided a rear grip of a small planing boat that can further improve the vibration damping action.

According to the third aspect of the present invention, in order to be gripped by a passenger seated on a saddle-type seat provided on the deck, in the rear grip of the small planing boat provided at the rear end of the deck, the center of the hull is provided. Since the left and right members are formed of plastic molded products along the vicinity of the line, and the left and right members are fixed to the deck while they are connected to each other, the material yield is improved. A rear grip of a small planing boat that can be easily improved, can shorten the plastic molding process, and can effectively dampen the vibration transmitted from the hull to the grip section during sailing. Provided.

[Brief description of drawings]

FIG. 1 is a right side view of an embodiment of a small planing boat equipped with a rear grip to which the present invention is applied.

2 is a plan view of the small planing boat of FIG. 1. FIG.

FIG. 3 is a right side view of the rear grip shown in FIG.

FIG. 4 is a plan view of the rear grip shown in FIG.

5 is a rear view seen from the line 5-5 in FIG. 4. FIG.

6 is a partial cross-sectional view taken along the line 6-6 in FIG.

7 is a partial cross-sectional view taken along the line 7-7 in FIG.

[Explanation of symbols]

 1 Deck 2 Hull 6 Engine 7 Drive Shaft 8 Propulsion Machine 9 Projection 10 Seat 11 Handle 13 Step 16 Stern 20 Rear Grip 21 Base Member 22 Grip Member 23 Bracket 24 Bolt 25 Bolt 26 Bolt 27 Grasping Part

Claims (3)

[Claims] 1. In a rear grip of a small planing boat provided at a rear end portion of a deck for a passenger seated on a saddle type seat provided on the deck to grasp, a base member attached to the deck and the base member. A rear grip of a small planing boat, comprising a bracket attached to the left and right of the vehicle and a gate-shaped grip member attached to the left and right brackets, wherein the base member and the grip member are formed of a plastic molded product. 2. A rear of a small planing boat according to claim 1, wherein a shock absorbing member made of a rubber-like elastic material is interposed between the bracket and the base member or between the bracket and the grip member. grip. 3. In a rear grip of a small planing boat provided at a rear end portion of a deck for gripping a passenger seated on a saddle-type seat provided on the deck, the left and right sides are divided along a vicinity of a center line of a hull. A rear grip for a small planing boat, characterized in that each of the left and right members is formed of a plastic molded product, and the left and right members are fixed to the deck in a state in which they are connected to each other.