JPS6340077Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a table lifter mainly used for cargo handling on ships, and particularly to a table lifter used for cargo handling on a three-story deck.

Usually, as shown in Figures 1 and 2, the main deck 1,
In a three-story deck consisting of an upper deck 2 and a lower deck 3, the table lifter L is integrally constructed by connecting an upper table 4 and a lower table 5 via a connecting pillar 6, and is moved up and down by a driving cable 7 to lift each table. Cargo handling between the decks, ie, cargo handling between the main deck 1 and the upper deck 2, and between the main deck 1 and the lower deck 3, can be carried out simultaneously.

More specifically, in order to load cargo onto each deck, the cargo is transferred and placed on the upper table 4 from the main deck 1, the table lifter L is raised, and the upper table 4 is moved as indicated by the chain line in FIG. As shown, in line with the upper deck 2, the cargo is lowered onto the upper deck 2, and at the same time another cargo is placed on the lower table 5 from the main deck 1, and the lifter L
The cargo is lowered onto the lower deck 3, and by repeating this operation, cargo handling between the decks can be carried out simultaneously.

In addition, when unloading the luggage, the above-mentioned operation in reverse can be repeated.

However, in the table lifter L as described above, the upper table 4 and the lower table 5 are fixed by the connecting pillar 6, and the mutual distance d is regulated to be constant, so the height between each deck, that is, the main Both the height H 1 between the deck 1 and the upper deck ₂ and the height H ₂ between the main deck 1 and the lower deck 3 must correspond to the above-mentioned distance d between the lifters L.

Therefore, if the above-mentioned height H ₁ ,
If H ₂ is different, it will not be possible to use such a table lifter.

The present invention was constructed to solve the above-mentioned problems, and the connecting pillar 6 that connects the upper table 4 and the lower table 5 is configured to be expandable and retractable, and the heights H ₁ and H ₂ between each deck are reduced. Despite the differences, in the raised and lowered positions of the table lifter,
The upper table 4 and the lower table 5 can be aligned with the opposing deck, respectively.

The gist of the present invention will be explained below based on the embodiments shown in the drawings.

Figure 3 is a vertical sectional view of the main parts showing an embodiment of a three-story deck equipped with the table lifter of the present invention;
The figure is a longitudinal cross-sectional view of main parts showing another embodiment.

In the drawings, parts similar to those in the previous example are given the same reference numerals, and the differences from the previous example are in the upper table 4.
The connecting pillar 6 between the upper table 4 and the lower table 5 is composed of an inner cylinder 6a and an outer cylinder 6b containing a hydraulic mechanism, and is configured so that the distance d between the upper table 4 and the lower table 5 can be adjusted as necessary. It is in.

In the case of Figure 3, the height of main deck 1 and upper deck 2
This shows the case where H ₁ is greater than the height H ₂ between the main deck 1 and the lower deck 3. The driving cable 7 that drives the table lifter L is connected to the upper table 4 and is connected to the upper table via a pulley 8. It is connected to a drive source (not shown) along the deck 2.

Therefore, the table lifter L indicated by the solid line in the same figure
In the position , that is, the position where the upper table 4 is aligned with the main deck 1 and the lower table 5 is aligned with the lower deck 3, the connecting pillars 6 are reduced and the distance d is shortened, but the lifter L is Go up and place the upper table 4 on the upper deck 2 and the lower table 5 on the main deck 1.
When aligning the tables 4 and 5 with each other, the connecting pillar 6 is extended by the inner cylinder 6a and the outer cylinder 6b, which have a built-in hydraulic mechanism, and the distance d is adjusted to the height _H1 . At the same time, even after the lower table 5 aligns with the main deck 1 and stops, only the upper table 4 may be raised further and align with the upper deck 2. After raising and adjusting the distance d to the height _H1 , both tables 4 and 5 may be raised integrally.

Furthermore, the connecting pillar 6 may be extended while the lifter L is rising, so that the upper and lower tables 4 and 5 are simultaneously aligned with the upper deck 2 and the main deck 1, respectively.

In descending, contrary to the above, after the lower table 5 is aligned with the lower deck 3, the upper table 4 is moved to the connecting pillar 6.
The upper table 4 may be lowered to match the distance d to the height _H2 , and then the entire table may be lowered. The distance d may be matched to the height _H2 .

Figure 4 shows the height of the main deck 1 and upper deck 2 mentioned above.
This shows a case where H ₁ is smaller than the height H ₂ between the main deck 1 and the lower deck 3. In this case, the driving cable 7 is connected to the lower table 5 and is extended along the main deck 1 via the pulley 8. In operation, the upper and lower tables 4 and 5 simultaneously rise from the solid line position to the chain line position, and the upper table 4 aligns with the upper deck 2 first, followed by the lower table 5. may be aligned with the main deck 1, or the distance d may be adjusted to the height H ₁
It may rise after matching with .

When descending, the upper table 4 first reaches the main deck 1.
The lower table 5 may be aligned with the lower deck 3 by extending the connecting pillar 6, or the distance d may be adjusted first and then the lower table 5 may be lowered, or the extending and contracting movement of the connecting pillar 6 may be controlled by a lifter. It may be configured so that it can be performed simultaneously during the vertical movement of L.

As described above, according to the present invention, even if the hull structure has different heights between the decks, cargo handling on the two decks, which is a feature of the two-tiered table lifter, can be carried out at the same time. The drive cable connected to either of the lower tables is wound and unwound by a single drive source, and the telescoping connecting pillar itself is designed to extend and retract, whether hydraulically or mechanically. Since the structure does not require any power, it is possible to simplify the structure, and when making the space between the upper table and the main deck watertight, it is extremely easy to adjust the packing part. In particular, it is extremely effective in reducing the cargo handling time to compensate for the increased navigation time due to the speed reduction of ships in order to save fuel, and the practical benefits are significant. .

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the main part showing an example of a three-story deck equipped with a conventional two-tier table type lifter;
The figure is a cross-sectional view taken along the line A-A in Figure 1, Figure 3 is a vertical cross-sectional view of the main part showing one embodiment of a three-story deck equipped with the table lifter of the present invention, and Figure 4 is a cross-sectional view of another embodiment. FIG. 1...Main deck, 2...Upper deck, 3...Lower deck,
L...Table lifter, 4...Top table, 5
... lower table, 6 ... connection pillar, 6a ... inner cylinder, 6b ... outer cylinder, 7 ... drive cable, 8 ... pulley, H ₁ ... height between main deck 1 and upper deck 2, _H2 ...
...Height between main deck 1 and lower deck 3, d...Distance between upper and lower tables 4 and 5.

Claims (1)

[Scope of utility model registration request] In a table lifter with a three-story deck consisting of an upper deck 2, a main deck 1, and a lower deck 3, and in which the heights of the main deck 1 and the lower deck 3 are different, the upper table 4
A driving cable 7 that integrally moves up and down the lower table 5 and the lower table 5.
is connected to either the upper table 4 or the lower table 5, and is extendable and retractable to connect the upper table 4 and the lower table 5 and to correct the distance between the two tables corresponding to the difference in the height of the deck. A table lifter characterized in that a connecting pillar 6 is interposed between the two tables.