KR200485873Y1

KR200485873Y1 - Damper for trim device of boat engine

Info

Publication number: KR200485873Y1
Application number: KR2020170001027U
Authority: KR
Inventors: 윤건구
Original assignee: 윤건구
Priority date: 2017-03-03
Filing date: 2017-03-03
Publication date: 2018-03-07

Abstract

The present invention relates to a damper for a trim device of a boat engine capable of absorbing vibrations between an engine and a trim device mounted on a cylinder of a trim device in a state in which a lower portion of the engine is raised when a boat equipped with an engine is moved or carried .
In order to solve the above problems, a damper for a trim device of a boat engine according to the present invention includes a tilting device for lifting and lowering an engine, and a boat having trim devices each provided on the right and left of the tilting device and composed of a cylinder piston rod. And is installed in the piston rod of the trim device so that the tip of the piston is in contact with the engine to absorb vibration applied from the outside.

Description

[0001] DAMPER FOR TRIM DEVICE OF BOAT ENGINE [0002]

The present invention relates to a damper for a trim device of a boat engine, and more particularly, to a damper for a trim device of a boat engine, which is mounted on a cylinder of a trim device while lifting a lower portion of the engine, To a damper for a trim device of a boat engine.

In recent years, as the leisure population has increased, there have been many means of enjoying leisure at the aqua, such as watering and fishing, among which leisure boats are exploding.

Among these boats, boats of the type in which the engine is attached so as to enable the remote movement of the boats are widely used not only for leisure but also for rescue operations, fire-fighting operations,

These boats are transported through a separate trailer to be stored or moved as needed. In order to protect the propulsion devices (eg, propellers) located under the engine during transportation, Device.

1 is a schematic view of an engine part in a conventional boat.

Referring to FIG. 1, the tilting apparatus 10 includes a cylinder 11 and a piston rod 12. The piston rod 12 is drawn or drawn in accordance with whether hydraulic oil is supplied to the cylinder 11, The engine 1 is lifted and lowered about the hinge axis by the pulling-in and pulling-out operations of the piston rod 12. [

At this time, in order to transport or move the boat, the tilt device 10 is operated to raise the lower side of the engine, and then the boat is mounted on a trailer or the like. In order to prevent the engine, A sag prevention block 20 is provided.

Fig. 2 is a schematic diagram showing a state in which a sag prevention block for retaining a raised state of a conventional boat engine is installed.

The deflection preventing member 20 is configured to be variable in length, one side of which is fitted to the frame of the trailer and the other side of which is fitted to the body of the engine to fix the position of the raised engine.

However, the sagging prevention member 20 can prevent the sagging of the engine from being elevated. However, there is a problem in that the tilting due to the left-right rotation or the left-right vibration of the trailer during the movement can not be accommodated.

On the other hand, Japanese Patent Application Publication No. 10-0578620 discloses a tilting apparatus for a ship propeller.

In this technique, a trim device 30 is provided to prevent the left and right trim of the lowered engine when the boat is operated for water operation.

The trim devices 30 are provided on the right and left sides of the tilting device 10 and are composed of a cylinder 31 and a piston rod 32. The piston rod 32 Is pulled out or drawn in, thereby preventing the engine from being sideways when the boat is operated for water.

However, when the engine is lifted by the operation of the tilting device 10, the piston rod 32 of the trim device 30 is prevented from being tilted, The tip is kept separate from the engine and can not be used separately.

KR 10-0578620 B1 (2006. 05. 03.)

The present invention has been made in order to solve the above problems of the prior art, and it is an object of the present invention to provide a trim device for a boat engine, which is fitted to a piston rod of a trim device, And to provide a damper for use.

It is also an object of the present invention to provide a damper for a trim device of a boat engine, which prevents the raised engine from being horizontally trimmed and prevents an external force such as vibration from being transmitted to the engine, thereby minimizing an impact applied to the engine during transportation.

In order to solve the above problems, a damper for a trim device of a boat engine according to the present invention includes a tilting device for lifting and lowering an engine, and a boat having trim devices each provided on the right and left of the tilting device and composed of a cylinder piston rod. And is installed in the piston rod of the trim device so that the tip of the piston is in contact with the engine to absorb vibration applied from the outside.

here. The damper for a trim device includes a body; A first cushioning member inserted into a front end portion of the body and having a through hole through which the piston rod of the trim unit is inserted, And a second buffer member inserted into the rear end of the body and made of a bufferable material.

The first cushioning member may include a first cushioning portion contacting the cylinder of the trim device, a first inserting portion inserted into the body, And a first protrusion protruding from the outer surface of the first insert in the longitudinal direction.

The second cushioning member may include a second cushioning portion contacting the engine, a second inserting portion inserted into the body, and a second protrusion protruding from the outer surface of the second inserting portion in the longitudinal direction .

In addition, the second buffer portion is characterized in that its tip is tapered.

According to the present invention, it is possible to provide a damper for a trim device of a boat engine that can prevent sagging of an engine that is raised simply by simply fitting it into a piston rod of a trim device.

In addition, since the engine can be prevented from being swayed by vibration or rotation generated during transportation, there is an advantage that damage to the boat engine can be prevented.

1 is a schematic view of an engine part in a conventional boat;
Fig. 2 is a schematic diagram of a state in which a deflection preventing member for maintaining the boat engine in a raised state is installed.
3 is a schematic view showing a state in which a damper for a trim device of a boat engine is installed according to the present invention.
4 is a perspective view of an embodiment of a damper for a trim device of a boat engine according to the present invention.
5 is an exploded perspective view of a damper for a trim device of a boat engine according to the present invention.
6 is a sectional view taken along the line AA 'of FIG. 4;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

3 is a schematic diagram showing a state in which a damper for a trim device of a boat engine is installed according to the present invention.

Referring to FIG. 3, the damper 100 for a trim device according to the present invention is inserted into a piston rod 32 of a trim device 30, and its tip end is installed in contact with the engine 1, And is configured to absorb applied vibration.

The boat is provided with a tilting device 10 for raising and lowering the engine and the trim device 30 is provided on each of the right and left sides of the tilting device 10 and the damper 100 for the trim device is mounted on the trim Is installed in the piston rod (32) of the device (30).

FIG. 4 is an exploded perspective view of a damper for a trim device of a boat engine according to the present invention, FIG. 5 is an exploded perspective view of a damper for a trim device of a boat engine according to the present invention, &Quot; FIG.

Referring to FIGS. 4 to 6, the damper 100 for a trim device according to the present invention includes a body 110, a first buffer member 120, and a second buffer member 130.

The body 110 may be made of relatively hard metal or synthetic resin to maintain its shape. The body 110 shown in FIGS. 4 and 5 is formed in a cylindrical shape and the inside of the body 110 is opened to form a tubular shape. However, the body 110 may also be formed as a square tube or a hexagonal tube according to design conditions.

The first cushioning member 120 is inserted into the rear end of the body 110 and has a through hole 121 through which the piston rod of the trim unit 30 is inserted. . For example, it may be made of rubber as a bufferable material.

The first cushioning member 120 may include a first cushioning portion 122 contacting the cylinder of the trim unit 30, a first inserting portion 123 inserted into the body 110, And a plurality of first protrusions 124 protruding from the outer surface of the insertion part 123 in the longitudinal direction.

The outer diameter of the first cushioning part 122 is relatively larger than the outer diameter of the body 110 and the outer diameter of the first inserting part 123 is relatively smaller than the inner diameter of the body 110 And a predetermined step 125 is formed between the first buffer 122 and the first insertion part 123. The stepped portion 125 is hooked to one end of the body 110 to prevent the first buffer 122 from being drawn into the body 110.

In this configuration, the first buffer member 120 primarily absorbs vibration applied from the piston rod, and absorbs frequent vibration. Therefore, the first buffer member 120 may be hardened by frequent vibration, and cracks may be generated in the first buffer member 120 due to such hardening. In order to prevent this, the outer surface of the first buffer 122 may be provided in a groove (not shown) provided with an O-ring 126 made of a metal in the circumferential direction.

The second buffer member 130 is inserted into the front end of the body 110 and is made of a bufferable material. For example, it may be made of rubber as a bufferable material.

The second cushioning member 130 includes a second cushioning portion 132 contacting the engine, a second inserting portion 133 inserted into the body 110, and a second inserting portion 133, And a plurality of second protrusions 134 protruding in the longitudinal direction on the outer surface of the first protrusion 134.

The second buffer member 130 may be formed with a groove 131 communicating with the through hole 121 of the first buffer member 120.

At this time, the piston rod of the trim device may be inserted into the through groove 135.

Like the first cushioning member 120, the second cushioning part 132 may be provided at an outer surface thereof with an O-ring groove (not shown) having an O-ring 136 made of a metal in a circumferential direction .

In addition, the second buffer part 132 may have a tip shape tapered.

The sum of the length of the first insertion portion 123 of the first cushioning member 120 and the length of the second insertion portion 133 of the second cushioning member 130 is equal to the length of the body 110 The same can be done.

The length of the first insertion portion 123 of the first cushioning member 120 may be longer than the length of the second insertion portion 133 of the second cushioning member 130.

That is, the length of the first cushioning member 120 is relatively longer than the length of the second cushioning member 130 of the second cushioning member 130 so that the weight of the engine due to the vibration is applied to the damper 100 for the trim unit The vibration caused by the first cushioning member 120 located at the lower side can be damped relatively more than the second cushioning member 130 to prevent transmission of vibration to the engine. Further, since the center of gravity of the damper 100 for a trim unit is inserted into the piston rod of the trim unit 30 and the center of gravity of the damper 100 is moved to the lower side, there is an advantage in that the stability of the installation is ensured.

At this time, since the length of the first insertion part 123 is relatively longer than the length of the second insertion part 133 of the second buffer member 130, the first insertion part 123 is inserted into the second insertion part 133 A relatively larger portion is inserted into the body 110. [

The length of the first protrusion 124 protruding in the longitudinal direction is formed to be shorter than the length of the first inserting part 123 on the outer surface of the first inserting part 123, (120) is inserted into the through hole (121) of the body (110).

The length of the second projection 134 may be configured to correspond to the length of the second insertion portion 133.

In addition, since the damper for a trim unit according to the present invention includes the body, the first buffer member and the second buffer member, it is easy to replace the parts when one of the configurations is lost or damaged, There is an advantage that the cost can be reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: engine 10: tilting device
11: cylinder 12: piston rod
100: damper for trim device 110: body
120: first buffer member 121: through hole
122: first buffer part 123: first insertion part
124: first protrusion 125:
126: O-ring 130: Second buffer member
131: groove 132: second buffer
133: second insertion portion 134: second projection

Claims

A tilting apparatus (10) for raising and lowering an engine, and a trim device (30) provided respectively at left and right sides of the tilting device (10) and composed of a cylinder and a piston rod,
A piston rod inserted in the piston rod of the trim device 30 and having a tip end adapted to be in contact with the engine to absorb vibrations applied from the outside,
The damper for a trim device includes:
A body 110;
A first cushioning member 120 inserted in a front end portion of the body 110 and formed at the center thereof with a through hole 121 through which the piston rod of the trim unit 30 is inserted and made of a bufferable material; And
A second buffer member 130 inserted into the rear end of the body 110 and made of a bufferable material;
And a damper for a trim device of a boat engine.

delete

The method according to claim 1,
The first buffer member (120)
A first buffer 122 contacting the cylinder of the trim device 30;
A first inserting part 123 which is inserted into the body 110; And
A first protrusion (124) protruding in the longitudinal direction on an outer surface of the first insertion portion (123);
And a damper for a trim device of a boat engine.

The method according to claim 1,
The second buffer member (130)
A second buffer 132 contacting the engine;
A second inserting portion 133 which is inserted into the body 110; And
A second protrusion 134 protruding in the longitudinal direction on the outer surface of the second inserting portion 133;
And a damper for a trim device of a boat engine.

The method of claim 4,
And the second buffering part (132) is tapered at its tip end.