JPH04271993A - Engine cover device for outboard motor - Google Patents

Abstract

PURPOSE:To facilitate the maintenance for an engine by demounting a cover in simple manner by installing the left and right lower covers having different dimension on both the sides in the lower part of the engine and axially installing the rear lower edge of an upper cover in turnable manner by a supporting shaft, at the rear upper edge of one lower cover. CONSTITUTION:A lower cover 2 which covers the lower part of an engine 1 is shaped through casting, etc., of light allay, in partitioning to the left and right parts. The joint surfaces 3 on the rear sides of the left and right lower covers 2 are formed to the larger and smaller parts, deflected to one side. The lower cover 2 is tightened on the engine 1, engine holder 4, etc., from the left and right through an elastic bush. Further, at the rear upper edge of the lower cover 2, an upper cover 7 is axially installed in turnable manner through a supporting shaft 6. The front lower edge of the upper cover 7 is engaged by a hook 8, etc., on the front surface of the lower cover 2. When inspection and maintenance is carried out from the upper surface, the upper cover 7 is sprung up and turned and opened. Further, also the maintenance of the engine 1 from behind is enabled by demounting the larger side of the lower cover 2.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine cover device for an outboard motor.

0002

2. Description of the Related Art An outboard motor has an engine mounted on the top, a vertically placed drive shaft that rotates a propeller shaft at the bottom, and the rotation of the propeller propels the boat. The engine at the top is covered with an engine cover to prevent water from splashing onto the engine.

[0003] In general, engine covers are
As shown in the figure, insert and install lower cover A from below, cover the lower side of lower cover A by attaching engine holder cover B from the front and back, cover upper cover C on top of lower cover A, and then install the upper cover. C is attached to the lower cover A with a hook so that the upper cover C can be attached and detached. In addition, there is also a structure in which the lower cover is divided into left and right parts and fastened from the left and right sides, and the upper cover is detachably attached to the lower cover. For example, see Japanese Patent Application Laid-open No. 18394/1983.

0004

[Problems to be Solved by the Invention] In large outboard motors, the upper cover C is large, so it is difficult to lift and remove it, and the maintainability of the engine is poor. Furthermore, in order to replace the engine piston, etc., it is necessary to also remove the lower cover A, which is a difficult task.

[0005] In view of the above, the present invention allows the upper cover to be opened and closed by hinged to the lower cover, and can be opened and closed easily and is easy to maintain. The purpose of the present invention is to provide an engine cover device for an outboard motor, which allows easy maintenance of the engine, reduces the number of parts, and reduces weight.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the engine cover device for an outboard motor of the present invention has left and right lower covers attached to both sides of the lower part of the engine, and an upper cover attached to the rear upper end of one of the lower covers. The lower rear end of the cover is rotatably attached to a support shaft, and the upper cover is attached to the left and right lower covers to cover the engine.

[0007]

[Operation] The upper cover can be easily opened by flipping upward and rearward around the support shaft, allowing for light inspection of the engine. Furthermore, by shifting the rear mating surfaces of the left and right lower covers to one side and removing the larger lower cover, maintenance can be performed from the rear side of the engine, improving maintainability.

[0008]

Embodiments Hereinafter, embodiments of the present invention will be explained with reference to FIGS. 1 to 5. The lower cover 2 that covers the lower part of the engine 1 is formed into left and right parts by casting or the like using a light alloy or the like. The mating surfaces 3 on the rear side of the left and right lower covers 2 are shifted to one side and are formed in different sizes. The left and right lower covers 2 are fastened to the engine 1, engine holder 4, etc. from the left and right through elastic bushes 5, respectively. A support shaft 6 is laterally passed through the rear upper end of one of the lower covers 2, and the rear upper end of the upper cover 7 is rotatably attached to the support shaft 6. The upper cover 7 is attached to the upper edges of the left and right lower covers 2 to cover the engine 1. The lower front end of the upper cover 7 is fixed by being hooked to the entire surface of the lower cover 2 using a hook 8 or the like.

[0009] The upper cover 7 can be opened by removing the hook 8, flipping upward rearward and rotating, and can be opened with a light operation to allow inspection and maintenance of the engine 1 from the top. Also, by removing the larger side of the lower cover 2,
The rear side of engine 1 can also be accessed, allowing for extensive maintenance.

0010

As explained above, since the present invention is constructed as described above, the upper cover can be opened and closed easily by rotational operation. Also, by removing the larger lower cover, the engine can be serviced from the rear, making it easier to maintain. Also, the mating surface of the cover is small,
It has fewer parts, makes it difficult for water to get in, and is also lightweight. Also, since there are few mating surfaces of the cover, it can be shaped into a flush surface, making it look good.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view showing an embodiment of the present invention.

FIG. 2 is a longitudinal cross-sectional view of a lower cover mounting portion showing an embodiment of the present invention.

FIG. 3 is an exploded perspective view of left and right lower covers and an upper cover showing an embodiment of the present invention.

FIG. 4 is an exploded perspective view of a shaft attachment portion of an upper cover showing an embodiment of the present invention.

FIG. 5 is an overall perspective view showing an embodiment of the present invention.

FIG. 6 is an overall side view showing a conventional example.

FIG. 7 is an exploded perspective view of a lower cover, an engine holder cover, and an upper cover showing a conventional example.

[Explanation of symbols]

1 Engine 2 Lower cover 6 Support shaft 7 Upper cover

Claims (1)

[Claims] Claim 1: Attach left and right lower covers to both sides of the lower part of the engine, rotatably attach the rear lower end of the upper cover to the rear upper end of one of the lower covers with a support shaft, and attach the upper cover to the left and right lower covers. An engine cover device for an outboard motor, characterized in that the engine cover device is attached to the engine and covered with the engine.