JPH0411437B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cover device for an outboard motor engine, which is formed of a bottom cowling and a top cowling made of synthetic resin.

[Prior art]

As a conventional cover device for an outboard motor engine, there is one in which both the bottom cowling and the top cowling are made of synthetic resin, as described in Japanese Utility Model Publication No. 56-16463. Compared to those made of metal, this material can absorb sound from the engine and has excellent soundproofing properties, as well as absorb vibrations from the engine and have excellent vibration-proofing properties, as well as excellent moldability. Moreover, the weight can be reduced.

On the other hand, as a means for connecting the top cowling to the bottom cowling, a locking arm is attached to the engine cover 4 side to a locking piece 13 fixed to the lower cover 3 with bolts, as described in Japanese Utility Model Application No. 55-74893. 14, a sealing strip made of an elastic material was attached to the outer periphery of the lower end of the engine cover 4, and this sealing strip 5 was inserted into the outer periphery of the lower cover 3.

Further, in conventional outboard motors, the engine is mounted on the upper end of the casing, the propeller is arranged on the lower part of the casing, and a gear shift device for rotating the propeller in forward and reverse directions is supported by the bottom cowling.

It is also possible to support the gear shift device on the engine, but when removing the engine from the casing, the gear shift device must also be removed from the engine, which poses a problem in terms of maintainability.

Based on the above conventional technology, a bottom cowling made of a synthetic resin material and a top cowling made of a synthetic resin material are arranged at the upper part of a casing in which an engine is mounted on the upper end and a propeller is arranged in the lower part. In the cover device for an outboard engine, the elastic sealing member disposed between the top cowling and the bottom cowling forms an engine room that covers the engine. While sandwiching and fixing on both sides, an engaging metal fitting that can be engaged with one hook metal fitting is fixed to the bottom cowling, and in the engaged state, by engaging with the hook metal fitting on the opposite side. , an outboard engine is provided with a clamp device for fixing the top cowling to the bottom cowling via the sealing member, and a gear shift device for forward and reverse rotation of the propeller is directly fixed to the bottom cowling in the engine room. A cover device is possible.

[Problem to be solved by the invention]

However, when the gear shift device is directly fixed to the bottom cowling made of synthetic resin, and the engaging metal fittings that removably engage with the hook metal fittings arranged on the top cowling are directly fixed to the bottom cowling, the gear shift device cannot be directly fixed to the bottom cowling. By applying an external force for reverse switching, the bottom cowling absorbs the force transmitted from the gear shift device, the reaction force from the upper end of the casing, and the resistance force of the top cowling against deformation of the bottom cowling. , a force acting through the hook metal fitting and the engaging metal fitting, and a force acting through the sealing member among the resistance forces of the top cowling.

In this case, the bottom cowling between the part fixed to the bottom cowling of the gear shift device and the part fixed to the bottom cowling of the engaging fitting will be deformed, and the bottom cowling will deform even more, and the top cowling of the bottom cowling will be deformed. The shape of the connecting portion with the seal member may be distorted, and the elasticity of the sealing member alone may not be able to compensate, and liquid tightness may not be ensured.

An object of the present invention is to ensure liquid tightness between a top cowling and a bottom cowling even when an external force is applied to a gear shift device.

Furthermore, if the engaging metal fitting that engages with the hook metal fitting is damaged due to direct external force acting on the top cowling, it can be repaired by replacing only the engaging metal fitting that constitutes a part of the engaging member. Another purpose is to provide a cover device.

Furthermore, when an external force is applied directly to the top cowling, the clamping force or external force is not locally concentrated on the synthetic resin bottom cowling, preventing deformation such as bending of the bottom cowling. Another object of the present invention is to provide a cover device for an outboard engine that can maintain high liquid tightness.

[Means to solve the problem]

The present invention provides a cover device for an outboard motor engine, including a bottom cover ring made of a synthetic resin material and disposed at the top of a casing on which the engine is mounted on the top end and a propeller disposed at the bottom. In the cover device for an outboard engine, the top cowling includes a top cowling and an elastic sealing member disposed between the top cowling and the bottom cowling to form an engine room that covers the engine. , the hook metal fittings are fixed on both sides with the engine in between, while a metal engagement member that can be engaged with the hook metal fitting on one side is fixed to the bottom cowling, and in the engaged state, the hook metal fittings on the opposite side are fixed to the bottom cowling. By engaging with the hook fitting of
A clamp device is provided for fixing the top cowling to the bottom cowling via the sealing member,
In the engine room, a gear shift device for forward and reverse rotation of the propeller is fixed to the engagement member, thereby being fixed to the bottom cowling via the engagement member.

In addition, the engagement member is attached to the bottom cowling via a plurality of fasteners, and the above-mentioned engagement member is attached to the support metal fitting to which the gear shift device is attached, and to this support metal fitting via a plurality of other fasteners. It is composed of a hook metal fitting and a removable engagement fitting.

Furthermore, the arrangement interval of the fasteners for attaching the support fitting to the bottom cowling is set to be larger than the arrangement interval of the fasteners for attaching the engagement fitting to the support fitting.

[Effect]

According to the present invention, a part of the external force acting on the gear shift device is transmitted to the metallic engagement member, and from the engagement member to the top cowling via the hook fitting. Since the top cowling has deformation resistance, the resistance force against deformation acts on the bottom cowling as a reaction force through both the connection surface with the bottom cowling, the hook metal fittings, and the engaging member. The reaction force transmitted to the inner engagement member is directly transmitted to the gear shift device.

Further, when the metal fitting is composed of a support member and an engaging metal fitting, it becomes possible to replace only the engaging metal fitting which may be deformed and damaged by the hook metal fitting due to the action of a large external force on the top cowling.

Furthermore, if the spacing between the fasteners that attach the supporting metal fittings to the bottom cowling is set to be larger than the spacing between the fasteners that attach the engaging metal fittings to the supporting metal fittings, a large external force will be applied to the top cowling. However, when part of this external force is transmitted from the engagement fittings to the bottom cowling via the support fittings, the force acting on the bottom cowling fasteners is reduced from the force acting on the fastening fittings of the engagement fittings. can be done.

〔Example〕

An embodiment of this drawing will be described below based on the drawing.

In the figure, 1 is a casing of an outboard motor, and a propeller 2 is attached to the lower part of the casing 1. Further, a drive unit (not shown) consisting of a propeller shaft and the like is housed in the casing 1, and by transmitting power from the engine 3 to the propeller 2 through the drive unit, the propeller 2 is rotated. It can be driven.
Further, 4 is a clamp bracket through which the outboard motor is attached to the transom of the hull. In addition,
The engine is supported on a base 1a provided at the upper end of the casing 1.

An engine room 5 for housing an engine 3 is provided above the casing 1. This engine room 5 is composed of a bottom cowling 6 and a top cowling 7, both of which are made of synthetic resin. The bottom cowling 6 is connected to the upper end of the casing 1 on the lower edge side, and the lower edge of the top cowling 7 is abutted to the upper edge of the bottom cowling 1, so that the bottom cowling 6 is detachably connected. There is. That is,
To explain the structure of the connecting portion between the bottom cowling 6 and the top cowling 7, an engaging fitting 8 is provided on the front surface 6a side of the bottom cowling 6 facing the stern. This engagement fitting 8 has an engagement portion 8a protruding from the front surface 6a. The engaging metal fitting 8 is attached to the bottom cowling 6 via a support fitting 9 inside the bottom cowling 6. This support fitting 9 has a plate shape having a predetermined size, and a plurality of seat portions 9a are provided on the support fitting 9 in a distributed manner. and,
The engaging metal fittings 8 are superimposed on the upper surfaces of these seat portions 9a, and the engaging metal fittings 8 are tightened and fixed to the seating portions 9a via fixing bolts 10 as fasteners.

Further, the support fittings 9 are placed on the upper surface of a plurality of support sections 6b distributed on the bottom surface of the bottom cowling 6, and the support fittings 9 are connected to the support sections through mounting bolts 11 as other fasteners. It is tightened and fixed to the portion 6b. In this case, the spacing between the mounting bolts 11 for fixing the support fittings 9 is set wider than the spacing between the fixing bolts 10 for fixing the engagement fittings 8, as shown in FIGS. 2 and 3.

A hook metal fitting 12 is attached to the lower end of the other top cowling 7 on the front side 7a. This hook fitting 12 is configured to be engaged with the engaging portion 8a of the engaging fitting 8 when connecting the top cowling 7 to the bottom cowling 6, and to connect the two with a predetermined clamping force. .

That is, the engaging metal fitting 8 and the supporting metal fitting 9 are configured to be detachable from the hook fitting 12 disposed on the top cowling 7, and constitute an engaging member disposed on the bottom cowling 6.

Another hook fitting 14 is attached to the top cowling 7 at a position opposite to the hook fitting 12 across the engine. In the engaged state where the hook metal fitting 12 and the engaging metal fitting 8 are engaged,
A clamp device 15 is disposed on the bottom cowling 6 for fixing the top cowling 7 to the bottom cowling 6 by engaging with the hook fitting 14. That is, this clamp device includes a locking metal fitting 13 that engages with a hook metal fitting 14, a nut member 16 that is rotatably fixed to the bottom cowling 6 and has a lever portion provided outside the bottom cowling 6, Attach the locking metal fitting 13 to the nut member 16
It is composed of a bolt 17 that is fixedly integrated with the main body.

In this embodiment, a gear shift device 18 for rotating the propeller 2 in forward and reverse directions is supported on one end side of the support fitting 9, and 19 is a shift lever of the gear shift device 18. That is, the metal fitting having the support metal fitting 9 as a component has a function of fixing the gear shift device 18 to the bottom cowling via itself.

Further, 20 is a sealing member made of rubber or the like attached to the lower edge of the top cowling 7, and this sealing member maintains liquid tightness between the top cowling 7 and the bottom cowling 6. There is. The front surface of the top cowling 7 is configured to be inclined diagonally upward, and when the top cowling 7 is connected to the bottom cowling 6, this opening opens into the bottom cowling 6 shown in FIG.
The base end side is rotatably attached to the side operation panel 22 via a hinge portion 23 formed on the engaging fitting 8, and this operation panel 22 includes a starter lever 21, an oil indicator 24, Tachometer 25, thermometer 26 and stop switch 27
etc. are arranged.

According to one embodiment with such a configuration, a part of the external force acting on the gear shift device 18 is transmitted to the top cowling 7 via the support fitting 9, the engagement fitting 8, and the hook fitting 12. Since the top cowling 7 has deformation resistance, the resistance against deformation is applied to the connection surface with the bottom cowling 6, that is, the sealing material 20, and the hook fitting 12 and the engaging fitting 8.
This acts as a reaction force on the bottom cowling 6 via the support fitting 15. The reaction force transmitted to the inner metal fittings is directly transmitted to the gear shift device 18 without passing through the bottom cowling 6.

Furthermore, when the engaging member is composed of the support fitting 9 and the engaging fitting 8, it is possible to replace only the engaging fitting 8, which may be deformed and damaged by the hook fitting 12 when a large external force is applied to the top cowling 7. becomes.

Furthermore, the engaging metal fitting 8 is connected to the supporting metal fitting 9.
When setting the arrangement interval of the fasteners 11 for attaching the support fittings 9 to the bottom cowling 6 to be larger than the arrangement interval of the fasteners 10 for attaching the support fittings 9 to the bottom cowling 6,
When a large external force is applied to the top cowling 7 and part of the external force is transmitted from the metal fitting 8 to the bottom cowling 6 via the support fitting 9, the force acting on the fastener 10 of the bottom cowling 6 is The force acting on the fastener 10 of the alloy tool 8 can be reduced. That is, deformation of the bottom cowling 6 can be suppressed, and as a result, generation of a gap between the top cowling 7 and the bottom cowling 6 can be prevented.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to ensure liquid tightness between the top cowling and the bottom cowling even when external force is applied to the gear shift device.

Furthermore, in addition to this effect, even if the metal fitting that engages with the hook member is damaged due to a large external force acting directly on the top cowling, it can be repaired by replacing only a portion of the metal fitting.

Furthermore, when a large external force is applied directly to the top cowling, the clamping force or external force is not locally concentrated on the synthetic resin bottom cowling, preventing deformation such as bending of the bottom cowling. As a result, high liquid tightness can be maintained.

[Brief explanation of drawings]

The drawings show one embodiment of the invention, with FIG. 1 being a side view of an outboard motor, and FIG. 2 being a sectional view of the engine room. FIG. 3 is a partially sectional front view of the bottom cowling with the top cowling removed. 2...Propeller, 6...Bottom cowling, 7
...Top cowling, 8...Engaging metal fittings, 9...
Supporting metal fitting, 10... Fastener, 11... Fastener, 1
2... Hook metal fitting (hook member), 18... Gear shift device, 20... Seal member.

Claims (1)

[Scope of Claims] 1. A bottom cowling made of a synthetic resin material and a top cowling made of a synthetic resin material, which is arranged at the top of a casing in which an engine is mounted on the top end and a propeller is arranged in the bottom part.
In the cover device for an outboard engine, the top cowling is provided with a hook metal fitting that protects the engine from the top cowling. While the bottom cowling is sandwiched and fixed on both sides, a metal engagement member that can be engaged with the hook metal fitting on one side is fixed to the bottom cowling, and in the engaged state, it engages with the hook metal fitting on the opposite side. By doing so, a clamp device is provided for fixing the top cowling to the bottom cowling via the seal member, and a gear shift device for rotating the propeller in forward and reverse directions is fixed to the engagement member in the engine room. A cover device for an outboard motor engine, characterized in that the cover device is fixed to a bottom cowling via an engagement member. 2. The engagement member is attached to the bottom cowling using a plurality of fasteners, and a support fitting to which the gear shift device is attached;
The cover for an outboard motor according to claim 1, characterized in that the support fitting includes an engaging fitting that can be attached to and detached from the hook member by a plurality of other fasteners. Device. 3. Claim 2, characterized in that the arrangement interval of the fasteners for attaching the support metal fitting to the bottom cowling is set larger than the arrangement interval of the fasteners for attaching the engagement metal fitting to the support metal fitting. Outboard motor engine cover device as described in .