JPS595058Y2 - Movable fender - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvement of fenders for ships.

BACKGROUND ART Conventionally, fenders provided on quay walls, beam walls, and other quay walls where ships come alongside have generally had a structure as shown in FIG. 1.

That is, a fender 03 having a hardness that does not damage the outer skin of the hull is attached to the tip of a protrusion 01' that extends slightly from the quay 01 to the side where a ship (not shown) is located.
04 was attached to the protrusion 01'.

A ship that floats on the sea surface 02 and comes alongside has its side part in contact with the quay 01 via a fender 03, so that the outer plating of the ship's hull is protected from damage.

However, this conventional fender had the following problems.

(1) Since the fender is fixed to the quay side, the fender is easily damaged by the large sliding friction caused by the vertical and longitudinal movements of ships alongside.

(2) If the fender is damaged while coming alongside, the ship will come into direct contact with the quay, which will in turn damage the ship and cause serious damage.

(3) Since the fender is fixed, its relative height to the ship varies depending on the tide, and the fender is not constant, which may result in the fender being placed in an unfavorable position when coming alongside.

The present invention aims to provide a movable fender that eliminates such problems, and its structure is such that a shaft protrudes from the quay side where the ship comes alongside, and a shaft coaxially extends from the quay side. an arm mounted rotatably in a plane parallel to the arm, a first axis provided parallel to the axis of the arm at a position apart from the axis of the arm, and an axis around the axis around the first axis. a first wheel rotatably mounted and movable as the arm rotates on the quay-side surface; A second shaft provided parallel to the quay side, and a second wheel attached to the second shaft so as to be rotatable around the axis and with its outer periphery located at a position farthest from the quay side. and a movable fender comprising a float installed at the tip of the arm so that it floats in seawater and can follow changes in the tide level together with the arm, and the present invention is constructed as described above. Therefore, it has the following advantages compared to conventional fenders.

(b) In response to vertical movement of the ship, if the axis of the arm is close to the vertical line, the second wheel installed on the second shaft will roll while in contact with the hull outer plate, and the axis of the arm will change. When it is near the horizon, the first wheel attached to the first shaft moves on the surface of the quay side with the rotation of the arm while the second wheel is pressed against the hull outer plate. For back and forth movements,
When the axis of the arm is near the vertical top, the first wheel attached to the first shaft rolls on the quay side surface with the rotation of the arm while the second wheel is pressed against the hull outer plate. , when the axis of the arm is near the horizontal line, the second axis provided on the second axis
Since the wheels roll while in contact with the hull outer plate, no sliding friction occurs between the fender and the ship, and therefore the fender is not damaged due to the frictional force.

(b) Therefore, there is almost no chance that the fender will be damaged during the process of coming alongside, and damage to the fender will cause the ship to crash directly against the quay.
There is no possibility of damage to the vessel since there is no possibility of collision.

(c) The arm is rotated by a float attached to the tip of the arm in accordance with the tide level, and the fender (second wheel) etc. is always kept at a constant height relative to the water level, so the relative height of the fender to the ship is reduced. is always constant, and there is no need to fend off defective areas.

Next, one embodiment of the present invention will be described with reference to the drawings.

In FIGS. 2 to 4, 101 is a quay where a ship comes alongside, and 102 is a sea surface where the ship comes alongside.

Reference numeral 103 denotes a fender (second wheel), which is in the shape of a rubber elastic (hollow) wheel. A ring 105 is fixed to the center of the wheel shape, and within the ring 105 is a horizontal shaft 106 that rotates. Possibly embedded.

104 is a bolt and nut that passes through the hole in the pedestal 110 and connects to the quay wall 1.
It is fixed to 01.

A ring 105 is made of metal and has a cylindrical shape. A horizontal shaft 106 passes through the inner surface of the cylinder, and a fender 103 is fixed to the outer surface of the cylinder.

Reference numeral 106 is a horizontal shaft (second shaft) made of a metal rod with a circular cross section, which passes through the inner surface of the ring 105 , and both end faces pass through fender fittings 107 and are fixed with nuts 108 .

Reference numeral 107 denotes a fender attachment, which is made of a triangular flat metal plate, and has a hole at one end to support the horizontal shaft 106, and the other end is fixed to a support fitting 111 with a bolt 109.

108 is a nut screwed onto the horizontal shaft 106.

109 is attached to the fender fitting 107 with bolts.

110 is a pedestal made of a circular flat plate, and a bolt nut 10
4 to the quay wall 101, and one end surface of a protruding shaft 112 is fixed to the center.

111 is a support fitting (arm) made of a square metal bar.
There is a hole in the center part through which the protruding shaft 112 passes, a ball path into which the ball 113 passes is machined at both ends of the hole, and a fender fitting 107 is fixed to one end surface of the lower part. , the other end face has a notch for housing the wheel 116, and a float support rod 119 is fixed to the lower end.

Reference numeral 112 denotes a protruding shaft (shaft) made of a metal rod with a circular cross section, one end of which is fixed to the pedestal 110 and passes through a hole in the center of the support fitting 111.

A ball 113 is fitted between the support fitting 111 and the protruding shaft 112 for smooth rotation.

Reference numeral 114 denotes a ball support plate, which is a circular plate with a U-shaped cross section, and passes through the protruding shaft 112 at the center.

115 is a nut screwed onto the protruding shaft 112.

A wheel 116 (first wheel) is rotatably supported by a vertical shaft 117.

117 supports the wheel 116 with a vertical axis (first axis),
One end is screwed into a notch in the support metal fitting 111, and the other end is fixed with a nut 118.

118 is a nut screwed onto the vertical shaft 117. A float support rod 119 has one end fixed to the lower part of the support fitting 111, and the other end fixedly supports the float 120.

120 is a float made of a spherical hollow body, which is provided on the fender 103 side of the support fitting 111, and uses its buoyancy to adapt to the tide level and rotate the support fitting 111.

Next, the effects of the above embodiment will be explained.

The support fitting 111 to which the fender 103 is attached is rotatably supported by a protruding shaft 112 through a hole in its almost center, and the lower part is slightly heavier around the protruding shaft 112, so that the float 120 does not touch the sea surface. Stop in a near state.

When a ship comes alongside and the ship's side hits the fender 103, the impact from the ship is received by the wheels 116, which are in contact with the pedestal 110.
It can be absorbed in 03.

Next, since the float 120 rotates around the protruding shaft 112 according to the ebb and flow of the tide, the fender 103 is always located near the sea surface.

The effect when the fender 103 is displaced around the protruding shaft 112 as described above will be explained.

(A) When the sea level 102 is on the lower surface of the float 120 (when the axis of the support metal fitting 111 is vertical) a. In the case of vertical motion of the ship, the wheels 116 do not rotate and the fender 103 moves around the horizontal axis 106. It rotates easily and protects the ship.

b. In the case of a ship moving back and forth, the fender 103 remains in the fendered state, and the wheels 116 rotate smoothly according to the back and forth movement of the ship.

(B) When the sea level rises and is displaced approximately 90 degrees, that is, horizontally, due to the action of the float 120, the wheel 116 rotates in the same way as in the case of the 6th action in (A) in the case of vertical movement of the ship.

b. In case of ship longitudinal oscillation The fender 103 rotates in the same manner as in the third action in section (A).

(C) The sea level continues to rise, and due to the action of float 120, 18
0°, that is, when the axis of the support fitting 111 is vertically displaced again, the same effect as in item (A) is obtained.

As explained above, even if the ship next to the ship moves in any direction, up or down or forward or backward, the fender 103 or the wheels 116 will inevitably roll, causing sliding between the ship's side and the fender 103. Therefore, the fender 103 will not be damaged due to friction.

In addition, the float 120 allows the support fittings 111 to adjust to the tide level.
Since the fender 103 rotates around the protruding shaft 112, the relative height of the fender 103 to the sea surface 102 remains at a substantially constant position, so that the fender 103 is always kept at a substantially constant position with respect to the ship.

In the above embodiment, the fender 1 of the support fitting (arm) 111
I added some extra weight as a balancer on the side opposite to the side where 03 is attached, but there is no need to add this.

That is, it is sufficient if it is provided in an arm shape only in one direction from the protruding shaft 112.

Further, the pedestal 110 does not necessarily need to be provided.

The fender 103 does not necessarily need to be made into a hollow body, and does not necessarily need to be made of rubber material.

In short, any material and shape may be used as long as they function as a cushioning material.

Furthermore, the quay referred to in the claims also includes side walls of docks and the like.

[Brief explanation of drawings]

Figure 1 is an overhead view of a conventional example, Figures 2 to 4 are diagrams of an embodiment of the present invention, Figure 2 is a front view thereof, and Figure 3 is a side view (arrow P indicates the fender 103. ), the fourth
The figure is a side sectional view taken along the IV-IV arrow line in FIG. 2. 101... quay, 103... fender (
2nd wheel), 106...Horizontal axis (2nd axis), 1
11... Support metal fittings (arm), 112...
...Protruding shaft, (shaft), 116...Wheel (first wheel), 117...Vertical axis (first shaft), 120...
...Float.

Claims (1)

[Scope of utility model registration request] A shaft protruding from the quay side where the ship comes alongside, an arm rotatably attached to the same axis in a plane parallel to the quay side, and an axis of the arm at a position apart from the axis of the arm. a first shaft provided parallel to the first shaft; a first wheel rotatably attached to the first shaft around the shaft and movable on the quay side surface as the arm rotates; perpendicular to the axis of the arm at a distance from the above-mentioned axis of the
and a second axis provided parallel to the quay side;
A second wheel is attached to the shaft so that it can rotate around the axis, and its outer periphery is at the farthest position from the quay side, and a second wheel is attached to the tip of the arm to float in the seawater and change the tide level. A movable fender characterized by consisting of a float that can be followed along with an arm.