KR101483507B1 - Outboard motor - Google Patents

Abstract

According to an embodiment of the present invention, there is provided an outboard motor mounted on a transom of a ship to propel the ship, the mounting bracket being fixed to the transom and being spaced apart from each other and having an internal installation space. A cushioning member disposed in the internal installation space and hinged to one side of the mounting bracket; A fixing pipe inserted into the through hole formed on the other side of the buffer member; A connecting member installed inside the fixing pipe and spaced apart from an inner circumferential surface of the fixing pipe, the connecting member having an insertion hole; An elastic member that fills a spacing space between the fixed pipe and the connecting member; And a housing inserted into the insertion hole and hinged to the other side of the buffer member by a hinge pin, the elastic member having an elastic force in a direction opposite to the rotation of the hinge pin as the housing moves.

Description

OUTBOARD MOTOR

More particularly, the present invention relates to an outboard motor that minimizes the damage of a component by minimizing the impact of an outboard motor that is mounted on a transom and supplies power to the ship when the vehicle collides with an obstacle in the water during operation of the ship. will be.

There are various types of marine propeller depending on the application generally used, and the outboard engine is one of these types. The outboard motor generates output by the reciprocating motion of the built-in cylinder and the piston located inside it, or propulsion is generated by the DC motor as the power source and is mainly used for propelling small ships.

Outboards are mostly applied to small vessels such as rapid ships or rubber boats. These outboards are required to have a certain depth of water depth according to the size of the ship and the number of horsepower of the engine, so that the propeller is projected to the lower part of the ship and the ship is driven by the propulsive force of the engine.

The outboard is fixed to the transom of the ship at the rear of the ship. The mounting bracket is fixed by a propeller and a stopper connected to the bottom of the housing to prevent the ship from rocking with sea water during operation. After the operation is completed, the stopper is released and the hinged housing is lifted above the water surface and then moored.

However, in the case of the west coast where many reefs are present, the propeller is hit by a protruding reef in the water due to underwater reefs, and the bottom of the engine is frequently damaged. Therefore, if the water depth becomes shallower by sensing sudden changes in the depth of the water during operation or when returning to the port, the propeller should be lifted to protect the propeller under the outboard and outboard.

Korean Patent Registration No. 10-0497852. July 25, 2006.

SUMMARY OF THE INVENTION An object of the present invention is to provide an outboard motor that absorbs shocks when a lower portion of a outboard motor collides with an obstacle during a ship operation to mitigate impact.

Another object of the present invention is to prevent the lower portion of the outboard motor, which is deeper than the bottom surface of the hull, from being damaged by an obstacle in the water.

Other objects of the present invention will become more apparent from the following detailed description and drawings.

According to an embodiment of the present invention, there is provided an outboard motor mounted on a transom of a ship to propel the ship, the mounting bracket being fixed to the transom and being spaced apart from each other and having an internal installation space. A cushioning member disposed in the internal installation space and hinged to one side of the mounting bracket; A fixing pipe inserted into the through hole formed on the other side of the buffer member; A connecting member installed inside the fixing pipe and spaced apart from an inner circumferential surface of the fixing pipe, the connecting member having an insertion hole; An elastic member that fills a spacing space between the fixed pipe and the connecting member; And a housing inserted into the insertion hole and hinged to the other side of the buffer member by a hinge pin, the elastic member having an elastic force in a direction opposite to the rotation of the hinge pin as the housing moves.

The hinge pin may be fixed to the insertion hole and rotated together with the housing.

The hinge pin may have a sawtooth shape in which irregularities are repeatedly formed along the circumferential direction of the outer circumferential surface, and the insertion hole may rotate together with the outer circumferential surface of the hinge pin.

The outboard motor may further include a stopper for restricting movement of one side hinged to the mounting bracket.

The outboard motor further includes a fixing pin disposed on the mounting bracket and disposed at a lower portion of the buffer member. The stopper includes a coupling hole formed at a central portion of the buffer member and hinged to one side of the coupling member, A guide groove inserted in the guide pin disposed between the through holes and restricting movement of the guide pin; And a fixing unit which is formed at a lower end of the stopper and descends along the guide groove to be fixed to the fixing pin so as to fix the hinge-coupled side of the connecting member.

Wherein the hinge pin includes: a working position in which the hinge pin rotates together with the elastic member as the housing moves by an external pressure in a state where the stopper is fixed to the fixing pin; And the stopper is fixed to the fixing pin, and can be switched to the standby position by the elastic force of the elastic member.

The mounting bracket includes: a convexly-shaped body portion that is fitted to the transom; And an arcuate support frame disposed at a lower portion of the body portion and in contact with the housing and having a plurality of adjustment holes into which an angle adjusting pin for adjusting a trim angle between the mounting bracket and the housing is inserted .

According to an embodiment of the present invention, when the lower portion of the outboard unit collides with an obstacle during a ship operation, the impact can be absorbed to mitigate the impact. Therefore, it is possible to prevent a ship from drifting and safety accidents by preventing the bottom of the outboard unit, which is deeper than the bottom surface of the hull, from being damaged by obstacles in the water.

1 is a view schematically showing a outboard motor according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of the outboard motor shown in Fig. 1. Fig.
3 is an enlarged view of A shown in Fig.
FIG. 4 is a view showing the connected state of FIG. 3. FIG.
5 is an enlarged view of B shown in Fig.
6 to 8 are views showing the operation of the outboard motor shown in FIG.
9 to 11 are views showing the state of the buffer member according to the position of the propeller shown in Figs. 6 to 8. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments are provided to explain the present invention to a person having ordinary skill in the art to which the present invention belongs. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer description. Also, the 'connection' referred to below should be construed to include not only the case where two components are directly connected but also the case where they are indirectly connected through another medium.

Before describing the present invention, the engine will first be described as being a relatively high speed cargo propulsion propulsion system, a propulsion type, and a discharge type propulsion propelled by an internal combustion engine such as a gasoline engine and a diesel engine, It is made, and high speed is obtained by a propulsion engine with large horsepower. Using the lift that acts on the bottom of the ship, the bottom of the front part is exposed on the water, and the bottom part of the rear part touches the surface of the water.

A runabout of up to 10 meters in length is called a runabout. A displacement ship is always relatively low in speed and balanced with buoyancy and gravity so that buoyancy can not be ignored. Most motor boats are of a displacement type and are used extensively for high speed passenger ships, water police patrol boats, fishing guide lines, motor yachts for cruising, and leisure boats. Also, it is divided into outboard engine (outboard motor) and general onboard equipment according to the type of engine.

The out motor (outboard motor) which is structured so that a small, lightweight diesel engine can be detached from the front part with the propeller in the rear part is widely used for a relatively small high speed boat such as a leisure boat, I have to. Outboards are not fast enough to glide, but they can achieve relatively high speeds of 25-80km depending on the number of horsepower.

Among the water drive systems attached to the ship, the propeller of the engine exposed to the surface has the highest efficiency relative to the fuel. However, there is a problem that a large portion of the surface-piercing under the hull is broken and the expensive propeller or the bottom of the engine is damaged in reefs or drifting floats in the water. Therefore, the outboard motor provided with the shock absorber for minimizing the damage of the equipment when the lower part of the outboard motor collides with the obstacle while preventing the outboard motor from rocking during the ship operation will be described below.

Hereinafter, the present invention may be modified in various forms according to the use of a generally used outboard motor. In the following description, a power source built in the outboard motor, that is, an output is generated by the reciprocating motion of the piston, And output it. In addition, the shock absorption process of the outboard motor during the operation of the ship will be described with an emphasis, for example, various components may be additionally included in the outboard motor according to the need.

FIG. 1 is a view schematically showing a outboard motor according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the outboard motor shown in FIG. 1. As shown in Figs. 1 and 2, the outboard motor 100 is a propulsion device attached to a transom (plate attached to the stern of a boat), and is mostly applied to a small ship such as a rapid line or a rubber boat . The mounting bracket 10 may include a body portion 11 having a shape of "∩" fitted in a transom and a support frame 16 disposed under the body portion to adjust a trim angle, which will be described later. Further, the transom 10 can be fixed or separated by a fixing screw (or a removable groove) (not shown).

The buffer member 20 is installed in an internal installation space formed between the two mounting brackets 10. One side (transom direction) of the buffer member 20 is hinged to the mounting bracket 10, and the other side is formed with a through-hole 22. The fixed pipe 30 has a shape corresponding to the through hole 22 and is inserted and fixed in the through hole 22. [ An insertion hole (not shown) is formed on the inner surface of the fixing pipe 30, and the elastic member 35 is filled between the fixing pipe 30 and a connecting member 37 described later. The elastic member 35 may be an elastic material, for example, a rubber elastic body, which is an object which is deformed by an external force and tends to return to its original shape when the force is removed.

A connecting member 37 having a polygonal shape is provided on the inner surface of the elastic member 35. The connecting member 37 and the fixing pipe 30 may be made of a material having a hardness higher than that of the elastic member 35, and may preferably be an alloy of metal or metal. The connecting member 37 has an insertion hole 39 on the inner surface thereof and the housing 40 is rotatable together with the insertion hole 39 and the hinge pin 45 hingedly supported.

The insertion hole 39 has a shape corresponding to the hinge pin 45 so that the hinge pin 45 is engaged with the rotation of the housing 40 along with the rotation of the housing 40. The hinge pin 45 is in the form of a saw- It can rotate. The extension case 50 is connected to the lower portion of the housing 40 and the motor case 60 can be connected to the lower portion of the extension case 50. The propeller 70 is supported by a motor provided in the motor case 60 You can propel the boat.

A lower portion of the mounting bracket 10 may be provided with an angle adjusting pin 15 for adjusting the trim angle by adjusting the distance between the housing 40 and the mounting bracket 10. The angle adjusting pin 15 has adjusting holes 17 formed at predetermined intervals in the supporting frame and the angle adjusting pin 15 is inserted into the adjusting hole 17 to adjust a trim angle between the mounting bracket and the housing .

Generally, when the trim angle is low, the slip angle is low and the bow is low. In addition, when the trim angle is high, the player is heard and the normal slide becomes difficult. Accordingly, the bottom surface of the boat and the water surface are preferably about 3 degrees, and the angle adjusting pin 15 is fixed, thereby enabling smooth and comfortable navigation.

In addition, depending on the type of the outboard motor 100, a mounting case 4 and an X-radar 2 may be provided on the mounting bracket 10. The X-rays (2), when berthing the ship, tilt the outboard gear to pivot over the water surface to prevent damage. For example, an engine (not shown) may be installed on the upper portion of the mounting case 4, and the engine may be a crankshaft engine capable of rotating a union gear (not shown) connected along the lower portion of a crankshaft have. The union gear may be provided with forward or reverse gears, and the propeller 70 may be connected to the union gear to forward or reverse by one-way or reverse rotation under the control of the engine. In addition, a cavitation preventing plate (not shown) for preventing cavitation can be installed on the upper portion of the propeller 70.

FIG. 3 is an enlarged view of FIG. 2, and FIG. 4 is a view showing the connection state of FIG. 5 is an enlarged view of B shown in Fig. 4. Fig. 3 to 5, the cushioning member 20 is installed in an inner installation space of the mounting bracket 10, and the mounting bracket 10 has a coupling hole 21 formed at one side of the cushioning member 20, And is hinged by a hinge shaft (12). The other side of the buffer member 20 is formed with a through hole 22 and the fixed pipe 30 is provided in the through hole 22. [ A rubber elastic body 35 is provided along the inner surface of the fixed pipe 30 and a connecting member 37 is provided on the inner surface of the rubber elastic body 35.

A fixing pin 14 having a protruding shape is provided on the lower portion of the mounting bracket 10 and is fixed to the mounting bracket 10 so that the coupling hole 21 in the lower portion of the buffer member 20 and the through hole 22 . The fixing pin 14 is installed on the mounting groove 23 formed in the buffer member and the stopper 25 can be moved up and down by inserting the mounting groove 23 therein. The stopper 25 is provided on the upper portion of the fixing pin 14 and the guide groove 27 is formed at the center of the stopper 25 so that the guide pin 24 provided on the buffer member 20 is inserted into the guide groove 27, 25 along the guide groove 27 when it is moved.

The fixing part 29 is formed at the lower part of the stopper 25 so as to have a concave shape toward the upper part of the fixing pin 29. When the guide pin 24 is positioned at the upper end of the guide groove 27, 14). The cushioning member 20 hinged by the coupling hole 21 of the cushioning member 20 is fixed to the transom so that the fixing portion 29 of the stopper 25 is fitted to the fixing pin 14. [

The housing 40 is hinged by an insertion hole 39 formed in the inner surface of the connecting member 37 and a hinge pin 45. An extension case 50, a motor case 60, The propeller 70 is connected. The extension case 50, the engine case 60, and the propeller 70 are located in the water during the operation of the ship, thereby propelling the ship. The housing 40 has an upper projection 41 hinged to the insertion hole 39 formed in the connecting member 37 by a hinge pin. A lower protrusion 43 may be formed on the lower portion of the upper protrusion 41 to adjust the angle of the trim between the mounting bracket 10 and the housing 40 by abutting the angle adjusting pin 15.

That is, the conventional outboard motor operated the ship with the mounting bracket 10 and the housing 40 being fixed by the stopper 25. This is to prevent the ship from rocking due to the rotation of the propeller 70. This causes the equipment to be damaged if a large portion of the propeller protrudes under the hull and the propeller or the bottom of the engine hits the reef or drifting float in the water Serious problems occur.

The outboard motor 100 according to the present invention minimizes the shaking motion of the ship while the stopper 25 is sandwiched by the fixing pin 14 while the ship is in operation and when the obstacle in the water hits the protruding portion under the hull, (40) is rotated by the hinge pin (45) and the elastic member (35) to minimize damage to the equipment. An operation process of the outboard motor 100 in the event of collision with an obstacle in the water will be described with reference to the following drawings.

6 to 8 are views showing the operation of the outboard motor shown in FIG. As shown in Fig. 6, the outboard motor 100 is fixed to the rear end of the ship as the mounting bracket 10 is fixed to the transom. The transom is connected to the housing 40 and the extension case 50, the motor case 60 and the propeller 70 connected to the lower portion of the housing 40 are operated in a state of being protruded to the lower portion of the hull .

7, when an obstacle protrudes from the water, the extension case 50 and the housing 40, which are in contact with the motor housing 60 of the outboard motor 100 and are connected to the motor housing 60, 60). The housing 40 is hinged to the buffer member 20 and the insertion hole 39 and rotates at a predetermined angle proportional to the magnitude of the impact force by the rotation of the hinge pin 45 (operating position). The hinge pin 45 and the connecting member 37 are rotated at a predetermined angle in a state of being connected to the inside of the rubber elastic body 35 and thereafter the elastic force of the rubber elastic body 35 is applied to the hinge pin 45, (45) is switched to the standby position to minimize the breakage of the parts. Preferably, the motor housing 60 and the extension case 60 are also made of an elastic material.

9 to 11 are views showing the state of the buffer member according to the position of the propeller shown in Figs. 6 to 8. Fig. 9 to 11, the fixing portion 29 formed at the lower end of the stopper 25 is fitted and fixed to the fixing pin 14 at the time of ship operation. One side of the cushioning member 20 is fixed to the mounting bracket 10 hinged to the coupling hole 21 and is fixed to the housing 40 by the insertion hole 39 formed on the other side of the cushioning member and the hinge pin 45. [ Are hinged together and can move together.

As described above, the hinge pin 45 has a sawtooth shape, and the insertion hole 39 can rotate in engagement with each other in a shape corresponding to the outer surface of the hinge pin 45. That is, the connecting member 37 having the insertion hole 39 on the inner surface is rotatable together, and is rotated (operated) at a predetermined angle by the rubber elastic body 35 disposed on the outside, Location).

In other words, the outboard motor 100 according to the present invention can release the stopper 25 at the time of berthing, and then tilt the outboard motor 100 by turning it over the water surface. In addition, when the bottom portion of the outboard motor 100 collides with an obstacle during a ship operation, the impact can be absorbed to mitigate the impact. Accordingly, it is possible to prevent the ship from drifting and safety accidents by preventing the bottom of the outboard motor 100, which is deeper than the bottom surface of the hull, from being damaged by the obstacle in the water, .

Although the present invention has been described in detail by way of examples, other forms of embodiments are possible. Therefore, the technical idea and scope of the claims set forth below are not limited to the embodiments.

2: X-ray 4: Mounting case
10: Mounting bracket 12: Hinge shaft
14: Fixing pin 15: Angle adjusting pin
20: buffer member 21: coupling hole
22: through hole 24: guide pin
25: stopper 27: guide groove
30: Fixed pipe 35: Elastic member
37: connecting member 39: insertion hole
40: housing 50: extension case
60: motor case 70: propeller
100: Outboard

Claims (7)

An outboard motor mounted on a transom of a ship for propelling the ship,
A mounting bracket fixed to the transom and spaced apart from each other to define an internal space therebetween;
A cushioning member disposed in the internal installation space and hinged to one side of the mounting bracket;
A fixing pipe inserted into the through hole formed on the other side of the buffer member;
A connecting member installed inside the fixing pipe and spaced apart from an inner circumferential surface of the fixing pipe, the connecting member having an insertion hole through which the hinge pin is inserted and fixed and rotatable together with the hinge pin;
An elastic member that fills a spaced space formed between an inner circumferential surface of the fixed pipe and an outer circumferential surface of the connecting member; And
And a housing hinged to the other side of the buffer member by the hinge pin and rotatable together with the hinge pin,
Wherein the elastic member provides an elastic force to the hinge pin in a direction opposite to a rotation direction of the housing as the housing rotates about the hinge pin. The method according to claim 1,
Wherein the hinge pin and the insertion hole are disposed so as to be perpendicular to the longitudinal direction of the buffer member. 3. The method according to claim 1 or 2,
Wherein the hinge pin has a sawtooth shape in which concavities and convexities are repeatedly formed along the circumferential direction of the outer peripheral surface, and the insertion hole rotates together with the outer peripheral surface of the hinge pin. 3. The method according to claim 1 or 2,
Wherein the outboard motor further comprises a stopper which restricts movement of one side hinged to the mounting bracket. An outboard motor mounted on a transom of a ship for propelling the ship,
A mounting bracket fixed to the transom and spaced apart from each other and having an internal installation space;
A cushioning member disposed in the internal installation space and hinged to one side of the mounting bracket;
A fixing pipe inserted into the through hole formed on the other side of the buffer member;
A connecting member installed inside the fixing pipe and spaced apart from an inner circumferential surface of the fixing pipe, the connecting member having an insertion hole;
An elastic member that fills a spacing space between the fixed pipe and the connecting member;
A housing inserted into the insertion hole and hinged to the other side of the buffer member by a hinge pin;
A stopper hinged to the mounting bracket to restrict movement of the one side; And
And a fixing pin installed on the mounting bracket and disposed at a lower portion of the buffer member,
Wherein the resilient member has an elastic force in a direction opposite to the rotation of the hinge pin as the housing moves,
The stopper
A guide groove formed in a central portion of the cushioning member and inserted in a guide hole disposed between the through hole and a coupling hole hinged to one side of the coupling member, the guide groove being configured to restrict movement of the guide pin; And
And a fixing part which is formed at a lower end of the stopper and descends along the guide groove to be fixed to the fixing pin so as to fix a hinged side of the connecting member. 6. The method of claim 5,
The hinge pin
An operating position that rotates together with the elastic member as the housing moves due to an external pressure in a state where the stopper is fixed to the fixing pin; And
Wherein the stopper is switchable to a standby position by an elastic force of the elastic member when the stopper is fixed to the fixing pin. 3. The method according to claim 1 or 2,
The mounting bracket includes:
An upper convexly-shaped body portion fitted into the transom; And
And a support frame disposed on the lower portion of the body portion and abutting the housing and having a plurality of adjustment holes into which angle adjusting pins for adjusting a trim angle between the mounting bracket and the housing are inserted, Outboard.

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