JPH0422239Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a horizontal contact freezer placed in the freezing chamber of a fishing boat for freezing seafood. A horizontal contact freezer equipped with a lifting device that allows the loading and unloading of frozen bread loaded with seafood to be higher than a predetermined height, allowing workers to load and unload the frozen bread in a comfortable position. Regarding.

[Conventional technology]

A conventional horizontal contact freezer is disclosed, for example, in Japanese Patent Application No. 58-77397. The lifting mechanism of the freezing plate in such a horizontal contact freezer is such that an upper support body that supports the highest freezing plate among a plurality of freezing plates connected to each other via bolts is moved in the vertical direction by a first cylinder. and a specific freezing plate is configured to be moved in the vertical direction by the second cylinder. When the first and second cylinders are at their respective bottom dead centers, each frozen bread is sandwiched between two freezing plates located above and below, thereby holding objects to be frozen such as seafood. It is designed to be frozen. When taking out each frozen bread from the freezing plate in such a state, first extend the first cylinder to its full stroke, put all the freezing plates in a suspended state, and place one of these freezing plates near the worker's waist or Take out the frozen bread from the freezing plate that is above the loading level set near the chest. After that, the second cylinder is extended in stages to raise all the freezing plates that were below the cargo handling level to the cargo handling level or higher, so that the worker can place the frozen bread near his or her waist or chest. It is designed so that it can be taken out at the height position.

[Problem that the invention attempts to solve]

In the conventional horizontal contact freezer as described above, the lifting mechanism that allows the worker to take the frozen bread in and out of each freezing plate at a height near his or her waist or chest is installed on each side of the freezing plate. It is composed of a pair of first cylinders and a pair of second cylinders respectively installed inside the first cylinders, and it is necessary to provide a device for engaging and disengaging the second cylinders from a specific freezing plate. There is a problem in that the device as a whole is very expensive.

[Means for solving problems]

In order to solve the above-mentioned problems, the horizontal contact freezer of the present invention has a rotatable roller member and a guide member that is spaced a certain distance downward from the roller member to support the uppermost freezing plate. A chain or wire is fixedly disposed with respect to the body, and a chain or wire is strung around the roller member, one end of which is connected to a specific plate among the freezing plates, and the other end is connected to a support device; Ropes are arranged to connect the specific freezing plate and the supporting tool via the guide member, and a stopper is provided on the moving path of the supporting tool to prevent the supporting tool from moving in the direction toward the roller member. It is characterized by having a.

[Effect]

As the cylinder extends from its minimum stroke position, a particular freezing plate does not move until all the plates above it are in a suspended state, but within that range the roller members and guide As the members rise, the supports connected to the particular freezing plate via chains or wires and ropes rise. When the support engages the stopper, the support is prevented from moving in the direction toward the roller member, and the particular freezing plate is raised at a rate twice the distance that the cylinder is raised. At this time, the distance between the adjacent plates of plates higher than a specific freezing plate becomes the minimum one after another, and the plates lower than a specific freezing plate become suspended one after another, and the distance between adjacent plates becomes the minimum one after another. rises to a height of .

In the process of the cylinder contracting from the maximum stroke position, when all the plates above a specific freezing plate are suspended, the engagement between the support and the stopper is released, and the support is moved to the guide member. As the freezing plate descends in the direction toward which the freezing plate is directed, the distance between adjacent plates becomes the minimum one after another for plates below a specific freezing plate. [Embodiment] Hereinafter, one embodiment of the horizontal contact freezer of the present invention will be described in detail with reference to the drawings. Figure 1 shows 14 effective freezing plates (number of plates is 15).
FIG. 2 is a schematic diagram of a horizontal contact freezer 20 equipped with a The entire contact freezer is placed in the freezing chamber 22 of a fishing boat, and usually a plurality of these units are arranged.

The contact freezer 20 includes 15 freezing plates 24 (numbered 1, 2, . . . 15 from the top) and a pair of hydraulic cylinders 26 arranged on both sides of the freezing plates 24. There is. The uppermost part of the freezing plate 24 (indicated by number 1) is connected to the rod 30 of the cylinder 26 via a liner 28 made of synthetic resin.
The rod 30 is fixed to a support 32 that extends over the tip and has both ends fixed to the tip of the rod 30. Each freezing plate 24 is suspended one after another via bolts and nuts (not shown). The state shown in FIG.
The six rods 30 are extended, and the distance between the eighth freezing plates 24 from the top reaches the maximum, and these freezing plates 24 are suspended by the supports 32. In this state, the interval between adjacent plates from the top to the eighth freezing plate 24 is the same as the freezing pan 34 (in the figure, the second freezing plate 14 from the top and the bottom freezing plate 14). (4 frozen pans are shown) and is determined by the length of the bolts previously discussed. When the hydraulic cylinder 26 is retracted by the full stroke (minimum stroke position), each bolt has play, and each freezing plate 24
are in close contact with the upper surfaces of the frozen breads 34 placed on the freezing plate one level below them, and the seafood placed on each frozen bread 34 is frozen. In the horizontal contact freezer according to the present invention as described above, a mounting member (not shown) extending perpendicularly to the support body 32 is fixed, and an upper roller 40 and a lower roller are mounted on the mounting member at vertical positions. rollers 42 are arranged at regular intervals. The upper roller 40 and the lower roller 42 are each rotatably disposed on a shaft fixed on a mounting member via a bearing (not shown), and in this embodiment, the direction of each shaft is aligned with the cylinder 26.
This is the direction perpendicular to the direction in which the rod 30 expands and contracts (in the figure, the direction perpendicular to the plane of the paper). Although the mounting member can be formed into a plate shape, it is preferably formed from a frame member.

A chain 44 is stretched around the upper roller 40, and one end is fixed to the upper surface of the eighth freezing plate 24 from the top (hereinafter referred to as a specific freezing plate) with an appropriate fixture.
The other end is connected and fixed to the upper part of the support fitting 46 as shown in FIG. A rope 48 is routed around the lower roller 42 from below the roller, one end of which is fixed to the lower surface of a particular freezing plate 24 with a suitable fixture, and the other end of which is attached to the support metal fitting 4.
6 and is fixed.

The support fitting 46 moves with the expansion of the cylinder 26, but a stopper 50 is disposed between it and the upper roller 40 to prevent the support fitting 46 from rising. The stopper 50 consists of a stopper plate 56 provided horizontally with respect to a column 54 fixed on a frame 52, and the stopper plate 56 is provided with an opening 58 through which the chain 44 can pass. Support metal fittings 4
6 is formed into a disk shape in this embodiment, and the opening 58
is formed in a size that does not allow the support fitting 46 to pass through. The support fitting 46 is the cylinder 2
6 is extended, the stopper plate 56
The opening 58 is engaged with the lower opening end of the opening 58 to be prevented from rising. The support fitting 46 has an opening 58
When the cylinder 26 is extended toward its maximum stroke position while locked to the cylinder 26, the particular freezing plate 24 will rise a distance twice the distance that the rod 30 of the cylinder 26 extends. .

Figures 3a to 3c are explanatory diagrams of the operation of the horizontal contact freezer, with Figure 3a showing the cylinder 26 in a fully retracted state (minimum stroke position), and Figure 3b showing the cylinder 26 in a state above a specific freezing plate. Figure 3c shows a state in which a certain plate is all suspended, and FIG. It shows.

When the cylinder 26 is at the minimum stroke position, all of the freezing plates 24 have a minimum distance between adjacent plates, and two adjacent plates sandwich each frozen bread 34 between them. At this time, the support fitting 46 is located below the stopper plate 56, and the lower roller 4
It is located above 2. When the rod 30 of the cylinder 26 is extended in order to take out each frozen bread 34 from each freezing plate 24, the plates above a specific plate (plates indicated by numbers 1 to 7) are successively removed from the top. The specific plate 24 also becomes suspended only when it is extended by amm (hereinafter referred to as the first stroke), and at that time the extension of the rod 30 is stopped. At that time,
A mounting member fixed to the support, namely the upper roller 4
0 and the lower roller 42 also rise by a, but the particular freezing plate 24 does not move, so the chain 44 and the rope 48 move by 2a in the clockwise direction via the rotation of the upper roller 40 and the lower roller 42, respectively. become.
This indicates that the support metal fitting 46 is raised by 2a, and the support metal fitting 46 is engaged with the lower open end of the stopper plate 56 to be prevented from rising as shown in FIG. 3B. In this position, all the freezing plates above the particular freezing plate are in a suspended state, and the frozen bread placed on each plate can be taken out. As long as the height at which the frozen bread is taken out is at least the height of the worker's waist or chest from the stand, there is no need to bend or stretch the body, so in this example, L ₀ mm is set as the height of the waist. It is set. Therefore, frozen bread placed on the plates from the second freezing plate to a specific freezing plate can be taken out.

When the rod 30 of the cylinder 26 is further extended, the support metal fitting 46 is locked to the stopper plate 56, and the upper roller 40 and the lower roller 42 are moved to the support body 32.
The specific freezing plate 24 is moved up by the chain 44 to the cylinder 2.
It is raised by twice the distance that the rod 30 of 6 is raised. The rod 30 can be set to rise by bmm to its maximum stroke position, at which time the particular plate will rise by 2bmm. (referred to as the second stroke). When the rod 30 extends by the second stroke b, the chain 44 and the rope 48 move counterclockwise through the upper roller 40 and the lower roller 42, respectively.
2b, and the plates above the specific freezing plate are successively minimizing the distance between adjacent plates, and the plates below the specific freezing plate are suspended one after another. The lowest freezing plate is at a predetermined height L ₀
It is starting to reach . Therefore, it is possible to take out frozen bread from all the plates below a specific freezing plate at a working position above a predetermined height _L0 .

As described above, almost no load is applied to the chain 44 connected to a specific freezing plate and the support fitting 44 via the upper roller 40 during movement corresponding to the first stroke, but during the movement corresponding to the second stroke When moving in response to this, the weight of the plates below the specific freezing plate, the frozen bread placed thereon, and the seafood placed on the frozen bread acts as a load. The chain must be durable enough. Moreover, the purpose can be achieved even if it is not a chain, but can be made of something that can sufficiently withstand the above-mentioned load, such as a wire. In either case, it is preferable that the upper roller 40 is provided with a groove for guiding the chain or wire.

Furthermore, the rope 48 connects a particular freezing plate and the support metal fitting 46 via the lower roller 42, so that the chain 44 does not swing while the fishing boat is sailing, but since no load is applied to the chain 44, In terms of strength, it does not necessarily have to be able to withstand a large load like a chain or wire, but may be something similar to a rope.

Further, although the upper roller 40 is configured to receive a load, the lower roller 42 does not need to be a rotatable roller similar to the upper roller 40 because it does not receive a substantial load, and it is not necessary to be a rotatable roller like the upper roller 40, and to guide the ropes 48. It is sufficient to have a function as a guide configured to do so. For example, two U-shaped pipe joints
It is also possible to use a guide member in the form of a segment, fixed on the mounting member with suitable fasteners.

The above explanation has been about the work to take out each frozen bread on each freezing plate, but when you want to do the work to put each frozen bread on each freezing plate, you can do the work by performing the operation opposite to the taking out work. The worker can work at a position higher than the predetermined height position L ₀ and does not need to bend or stretch his body, which improves work efficiency.

[Effect of idea]

According to the present invention, a rotating mechanism for raising and lowering a freezing plate is provided by a rotatable roller member fixedly disposed on a support body, and a rotatable roller member that is spanned over the roller member, one end of which is connected to a specific plate, and a support member that is connected to the other end of the rotatable roller member. A guide member consisting of a connected chain or wire and a stopper that prevents the support from moving in the direction toward the roller member, and in which ropes connecting a specific freezing plate and the support are arranged opposite the roller member. Because it is a configuration in which the freezing plate is placed through the It is possible to hold all the plates at a predetermined height or higher, and it is also possible to prevent the chain or wire from shaking due to the movement of the ship while the ship is sailing, and it is possible to remove frozen bread from and into the freezing plate. It can be done efficiently.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view showing an embodiment of the horizontal contact freezer of the present invention, Fig. 2 is a partial front view showing the engaged state of the support and stopper in Fig. 1, and Fig. 3a. , b, and c are explanatory diagrams of the operation of the horizontal contact freezer, respectively. 20... Entire contact freezer, 22... Freezing chamber, 24... Freezing plate, 26...
Cylinder, 30... Cylinder rod, 32
... Support body, 34 ... Frozen bread, 40 ... Upper roller, 42 ... Lower roller, 44 ... Chain,
46... Support metal fittings, 48... Rope, 52... Frame, 54... Support column, 56... Stopper plate, 58...
...opening.

Claims (1)

[Scope of utility model registration request] A plurality of freezing plates are connected one after another in the vertical direction via bolts, and a support body that supports the topmost freezing plate among the freezing plates is placed on both sides of the freezing plate in order to raise and lower it. and a plurality of freezing pans arranged on each of the freezing plates and on which seafood to be frozen is placed, and all of the freezing plates are suspended in accordance with the maximum stroke of the cylinders. the lowest freezing plate is below a predetermined height from the floor surface, and each frozen pan is held in a state sandwiched between two adjacent freezing plates in accordance with the minimum stroke of the cylinder. In the horizontal contact freezer, a rotatable roller member and a guide member spaced a certain distance downward from the roller member are fixedly arranged with respect to the support body, and the A chain or wire is strung around the roller member, one end of which is connected to a specific freezing plate among the freezing plates, and the other end is connected to a support, and the specific freezing plate and the support are connected to each other. The present invention is characterized in that ropes are provided to connect the rollers through the guide member, and a stopper is provided on the moving path of the support to prevent the support from moving in the direction toward the roller member. Horizontal contact freezer.