JPH0113677Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a flap device for an inboard ramp provided on a cargo ship or the like.

(Prior Art) Conventionally, as shown in FIG. 1, a lamp 3 is rotatably connected to an upper deck 1 in a line via a hinge 10, and the lamp 3 is connected to the lower deck 2 during loading, etc. The rotating tip is grounded to form a ramp that allows vehicles to pass through.

A flap 5 is rotatably connected to the lower deck 2 via a hinge 13, and this flap 5 is provided with a hydraulic cylinder 14 for driving its rotation.
The flap 5 is held in an inclined position such that its pivoting tip 9 engages with the lamp tip 6 via a hydraulic cylinder 14, so as to fill the difference in level formed between the lamp 3 and the lower deck 2.

In addition, under normal conditions, the flap 5 is retracted via the hydraulic cylinder 14 so as to be flush with the lower deck 2.

(Problems to be Solved by the Invention) However, in connection with the hydraulic cylinder 14 that drives the flap 5, the number of parts and hydraulic piping increases, resulting in a problem in terms of manufacturing costs.
Furthermore, as the lamp 3 moves up and down, it is necessary to extend and retract the hydraulic cylinder 14, which is time-consuming.

Therefore, the present invention aims to solve the above problems.

(Structure of the invention) In the present invention, a substantially L-shaped lever is rotatably connected to a recess formed in the lower deck, a boss is provided on the lamp that protrudes from the side wall, and a yoke portion that engages with this boss is attached to the lamp. A roller is formed at one end of the lever and connected to the other end of the lever so that it rolls into contact with the lower surface of the flap, so that the flap is driven by the weight of the lamp via the lever.

In addition, in the present invention, when the lamp is lowered onto the lower deck, a line extending from the pivot point of the lever to the rolling contact point of the roller is set to be approximately perpendicular to the lower surface of the flap, so that a vehicle or the like passes over the flap. By applying the load applied to the lever along the extension line on the lever fulcrum, the rotation of the lever due to the load and the accompanying vertical movement of the ramp and flap are prevented.

(Example) As shown in FIGS. 2, 3, and 4, a bracket 16 is provided protruding into a recess 15 formed in the lower deck 2, and a lever 7 is rotated through a shaft 17 on this bracket 16. Connect freely.

This lever 7 has an arm portion 19 at its tip that connects a roller 18, and when the lever 7 rotates, the roller 18 rolls into contact with the lower surface 20 of the flap 5.

The lever 7 has an arm portion 21 that is bent in an L shape relative to the arm portion 9, and a yoke portion 22 that projects in a V shape is integrally formed at the tip of the arm portion 21.

A cylindrical boss 25 protruding from the side surface 24 is fixed to the lamp 3, and this boss 25 engages with the yoke portion 22.

Next, the operation will be explained.

Normally, the flap 5 is in a retracted position in which it forms the same plane as the lower deck 2, as shown by phantom lines in FIG. At this time, the lever 7 brings the roller 18 into contact with the lower surface 20 of the flap, as shown by the imaginary line, and holds the yoke 22 at a high position away from the lower deck 2.

Next, when lowering the ramp 3 to connect the upper and lower decks 1 and 2, the ramp 3 rotates downward about the hinge 10, and as shown by the imaginary line in FIG. It comes into contact with the yoke 22.
When the yoke 22 abuts and engages the boss 25, the lever 7 is rotated clockwise in FIG. 3 about the shaft 17 as the lamp 3 descends. When the lever 7 rotates in this way, the roller 18
performs a circular arc movement around the shaft 17 via the arm 19, and gradually protrudes from the surface of the lower deck 2. Accordingly, the flap 5 has a lower surface 20.
is supported in a rolling manner by rollers 18, and rotates upward about shaft 13.

When the lamp 3 touches the lower deck 2 in this way, at the same time the flap 5 opens the lever 7 due to the weight of the lamp 3 and is held in a state of inclination at a predetermined angle as shown by the solid line in FIG. Tip 9
is engaged with the lamp tip 6, that is, the flap 5
is spanned between the lower deck 2 and the lamp 3,
Vehicles can pass through without bumps.

When the lamp 3 is pulled up, the yoke part 22 engages with the rising boss 25 and the lever 7 rotates counterclockwise in FIG. It's starting to come back.

Note that the present invention can also be used for landing slopeways such as lifts.

(Effects of the invention) As described above, the present invention has a relatively simple structure and can automate the operation of the flap, thereby reducing costs and labor.

Further, in the present invention, since the lever is prevented from rotating by itself due to the load acting on the flap, it is possible to obtain the effect that vehicles etc. can smoothly pass over the ramp and the flap.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional example. FIG. 2 is a side view of an embodiment of the present invention, FIG. 3 is an enlarged side view of the main part, and FIG. 4 is a plan view. 1... Upper deck, 2... Lower deck, 3...
Lamp, 5...Flap, 7...Lever, 20...
... lower surface of flap, 22 ... yoke part, 24 ... lamp side surface, 25 ... boss.

Claims (1)

[Scope of utility model registration request] In a flap device for an inboard ramp, which includes a flap that spans between the tip of a ramp that connects the upper and lower decks of a ship and the lower deck, a boss protruding from the side of the ramp is provided, and a substantially L-shaped boss is provided on the lower deck. A lever is rotatably connected, and one end of this lever is formed with a yoke portion that engages with the boss, and the other end of this lever is connected with a roller that rolls into contact with the lower surface of the flap, and the lamp is connected to the lower deck. A flap device for an inboard ramp, characterized in that a line extending from a rotational fulcrum of the lever to a rolling contact point of the roller is substantially perpendicular to the lower surface of the flap when the flap is lowered.