JPH05283B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a lift device used for loading and unloading tuna onto and from freezing shelves in a freezing chamber of a tuna boat.

Conventional technology and problems Up until now, the work of loading tuna onto freezing racks in order to freeze them in the freezing room of a tuna boat, and the work of unloading frozen tuna from the freezing racks to transfer them to the fish hold, were all done manually by workers. It is carried out by. This work is difficult because the tuna is heavy, weighing approximately 50kg on average, and the temperature inside the freezing chamber is between -50kg and -50kg.
The extremely low temperature of 60 degrees Celsius is extremely harsh, as it reduces the ability of workers to exercise.

Therefore, the present invention was devised for the purpose of providing a lift device for raising and lowering the tuna in order to alleviate this effect.

In addition, this device is particularly required to satisfy the following conditions so that it is suitable for use under the special conditions of a tuna boat. In other words, it is safe even if the ship sways;
Furthermore, the freezing room can be installed without making any changes to the ship's hull structure, and the freezing room is not only used for freezing, but also for storing tuna by stacking them one by one starting from the corner when the fish hold is full. In the end, tuna will be placed throughout the freezing chamber, so it is required that it can be used without any problems even in such a case. The present invention therefore also aims to answer this need.

Means for solving the problem: Rails are provided above and below the freezing shelves of the tuna boat freezing room, and a frame is provided so that the tuna can be moved while being guided by the rails and can be held fixed, and the tuna is placed on this platform. This is a lift device for a tuna boat freezing chamber, which has a wall portion on the frame side of the loading portion that can be lifted to prevent the loaded tuna from falling.

Examples Examples illustrating the present invention will be specifically described below.

In the figure, 10 is a tuna boat freezing chamber, and a freezing shelf 11 is provided along the inner wall surface of the tuna boat, and a lift device 12 of the present invention is installed at the front end of this freezing shelf 11. 13 is a fish hold, 14 is a preparation room, and 15 is an entrance to the fish hold at the bottom of this freezing chamber 10. Furthermore, although not shown, a door is provided in front of each shelf of the freezing shelf 11, and the temperature inside the freezing shelf 11 is approximately -60°C, and the temperature inside the freezing chamber 10 is -60 to -50°C.
The temperature inside the room is -50 to -40°C, and the temperature inside the preparation room 14 is about -20°C.

The lift device 12 mainly includes rails 16,1
7, consists of a frame 18 and a stand 19.

The rails 16 and 17 are both attached to the columns 20 in the freezing chamber 10 and extend along the front edge of the freezing shelf 11. The upper rail 16 is made of I-beam steel and is located near the ceiling, and the lower slide body 17 is made of L-angle steel and is located near the wall.

The frame 18 is approximately rectangular and has rollers 21, . 22,... to hold the lower rail 17, and for this purpose, hold the handles 23, 23 provided on the sides with your hands and move the rail 16,
17. A brake 24 is provided near the roller 21 at the upper end, and is normally pressed against the rail 16 by a spring 25 to keep the frame 18 fixed. When moving the frame 18, a lever 26 on the side of the frame 18 is manually pressed. This pushes down through the cam 27, push rod 28 and lever 29, freeing the frame 18 away from the rail 16.

The stand 19 is provided in front of the frame 18, and its tip is close to the front end of the freezing shelf 11. At the rear of the stand 19 are front and rear rollers 30, ... and left and right rollers 3.
1, 31 are provided, and these front and rear rollers 30,...
is a U-shaped steel 3 that extends vertically on both sides of the frame 18.
2, 32, and the left and right rollers 31, 31 contact the side surfaces of the U-shaped steels 32, 32, so that the stand 19 can move up and down guided by the U-shaped steels 32, 32. It is becoming. Further, pulleys 33, 33 are provided above the rear part of the stand 19, and a wire 36 extending from a fulcrum 34 at the upper part of the frame 18 to a winding drum 35 is hooked thereon. The motor 37 is coupled through a clutch brake 38 and a speed reducer 39, and therefore, by operating a switch 40 near the handle 23, the motor 37 can be rotated forward or reverse, and the platform 19 can be raised or lowered. Note that power to the motor 37 is supplied by an electric wire (not shown) suspended from the rail 16.
supplied through.

The surface of the stand 19 is made of fiber-reinforced plastic and includes a mounting part 44 having chevron-shaped high parts 41, 41 at both ends, a small protrusion 42 at the front end, and a wall part 43 at the rear end.

This lift device 12 has the above configuration and is used in the following manner. When placing tuna on the freezing rack 11, first operate the lever 26 to release the brake 24 and move the frame 18 onto the rails 16,1.
7 to a desired position, then drag the tuna one by one and place it on the table 19 from the floor over the high part 41.
Furthermore, the switch 40 is operated to raise the table 19 so that it is approximately at the same height as the shelf board of the freezing rack 11, and then the tuna is pushed and slid from the side of the table by hand or the like and placed on the shelf board. When removing frozen tuna from the freezing shelf 11, move the frame 18 to position it in front of the tuna, set the platform 19 at the same height as the shelf, and use a hook or the like to pull the tuna to the platform 19. After that, the table is lowered, and the tuna is dragged out over the high part 41 onto the floor and carried to the fish hold.

In the illustrated example, the freezing rack 11 has four shelves, and the lift device 12 is used to place and lower the tuna on the second and third shelves from the bottom. The trays are loaded directly from the floor, and only small, lightweight tuna are placed manually on the top tier.

Effects of the Invention As described above, the lift device of the present invention can place the tuna on a stand, move it up and down by motor drive, place it on the freezing shelf, and lower it, so the work is significantly reduced compared to the conventional method. Furthermore, this lift device uses rails and the frame is fixedly held against the rails, so the frame will not move inadvertently, even when used on a ship that swings.
High safety is ensured. Furthermore, since the table is provided with a wall, when the tuna is placed on the table from the frozen shelf, the tuna is prevented from passing through the table and falling, making it safe. In addition, if the platform is provided with a raised portion and small protrusions as shown in the illustrated example, it is possible to prevent the platform from falling to the side of the platform while going up and down, thereby further increasing safety.
Furthermore, in order to install the device of the present invention, only the rails are fixed in the freezing chamber, and no other structural changes are required, so it can be easily used on existing tuna boats. Moreover, this device has a small overall shape, and only a small amount of floor space is required for raising and lowering the platform and loading and unloading tuna from the floor or freezing shelf to the platform, so a part of the freezing chamber can be used as a fish hold. It can be used without any problems, and the storage capacity will hardly decrease when the entire freezing chamber is used as a fish hold.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a plan view of the entire freezing chamber, FIG. 3 is a front view of the main parts of the present invention, and FIG. 4 is a side view of the same. be. 10... Freezing chamber, 11... Freezing shelf, 12... Lift device, 16, 17... Rail, 18... Frame, 1
9...unit, 24...brake, 37...motor, 43...
Wall portion, 44...resting portion.

Claims (1)

[Claims] 1 Rails are provided above and below the freezing shelf of the tuna boat freezing room, and a frame is provided so that it can be moved while being guided by the rails and can be held fixed, and on this frame,
A table is provided that is moved up and down by a motor in the space between the frame and the freezing shelf, and this table is further provided with a wall on the frame side of the mounting section on which the tuna can be placed to prevent the tuna placed on it from falling. Lift device for tuna boat freezing chamber.