JP6154931B1 - Pin support structure - Google Patents

Abstract

Provided is a pin support part structure that has a high reinforcing effect even if the increase in weight is small and that allows easy alignment of a pin and a hole. A pin support portion is configured by supporting a pin p inserted into a partition wall b of a hull, and welding a short steel pipe 1 to a hole o formed in the partition wall b. A plurality of steel pipes 1 are welded in the length direction of the partition wall b, and curlings 2 are welded between the steel pipes 1. When the steel pipe 1 is welded to the partition wall b, the amount of heat input is small, so that the generated strain is reduced and the position of the hole o with the pin p is easy to align. In addition, since the area for supporting the pin p is increased in spite of a small increase in weight, a support structure that has a high support force and is unlikely to be deformed can be obtained. [Selection] Figure 1

Description

  The present invention relates to a pin support structure. More specifically, pins are used to support various members at various locations on the hull, and the present invention relates to a pin support structure that supports such pins.

On ships, various equipment may be supported by pins at various parts of the hull. A sliding door in a cargo ship is one such equipment.
FIG. 4 shows a hold H of a roll paper loaded ship. Funakura H is a section in which a number of roll papers RP (rolled product paper in a roll shape, hereinafter the same) are aligned vertically, and a sliding door SD is provided in the section. . The role of the sliding door SD is to prevent it from shifting during voyage by being pressed against a lot of loaded roll paper RP. Therefore, the slide door SD is suspended from a moving mechanism M such as a chain installed on the ceiling, and can be fixed at an appropriate position in the captain direction.

  The sliding door of Patent Document 1 has a pin that protrudes or pulls in the downward direction of the door, and has a structure in which the tip of the pin is inserted into a recess formed in the bottom of the hold and fixed at an arbitrary position. Yes.

  Aside from the type of Patent Document 1, a conventional slide door SD, as shown in FIG. 5, is provided with retractable pins p on both sides of the slide door SD, and the pins can be operated with a manual handle h. There was a structure in which the slide door SD was supported by inserting and inserting into a hole formed in the partition wall b of the hold H.

By the way, since only the hole formed in the partition wall b is insufficient in strength to support the pin p, a support structure with some reinforcement is required.
The conventional support structure is as shown in FIG. 6 in which the VI portion of FIG. 5 is enlarged, and will be described below. The example shown in FIGS. 6A and 6B is a support structure in which a long plate-like doubling plate 51 is welded around the hole o to increase the reinforcing strength, and the other examples are shown in FIG. As shown in FIG. 3, the partition wall b is constituted by a plate member 52 whose thickness is increased around the hole of the partition wall b.

However, the conventional support structure has the following problems.
(1) After the hole o is cut in the partition wall and the surrounding stiffener is welded, the doubling plate 51 having a plurality of holes o is attached, so that the amount of shrinkage of the wall after the stiffener is welded and the doubling plate 51 It was difficult to maintain the accuracy of the cut hole.
Further, the heat input amount when the doubling plate 51 is welded or the thickened plate material 52 is welded is large, and the wall distortion is increased.
Therefore, it was difficult to align the pin p and the hole o.
(2) Although the doubling plate 51 or the thickened plate material 52 was designed to ensure buckling strength, there was a problem that the effect was small for the plate thickness and the weight tended to increase.

Special Table 2000-512237

  SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a pin support portion structure that has a high reinforcing effect even if the weight increase is small and that allows easy alignment of the pin and the hole.

The pin support structure of the first invention is a structure for supporting a pin inserted in a bulkhead of a hull, and a plurality of steel pipes are welded to a plurality of holes formed in the bulkhead direction in the bulkhead. And a curling is welded between the steel pipes .

According to the first invention, the following effects are obtained.
a) When the steel pipe is welded to the partition wall, the amount of heat input is small, so that the generated distortion is reduced, and the position of the hole with the pin is easily aligned. In addition, since the area for supporting the pins is increased in spite of a small increase in weight, a support structure that has a high support force and is unlikely to be deformed can be obtained.
b) By welding the curling, adjacent steel pipes are fixed to each other so that the reinforcing strength is improved. However, since the amount of heat input by welding is small, alignment with the pin is easy.

It is explanatory drawing of the pin support part structure in the slide door SD to which this invention is applied. It is explanatory drawing of the pin drive mechanism in the slide door SD of FIG. It is explanatory drawing of the pin support structure shown in FIG. It is a basic composition explanatory view of slide door SD. It is a front view of the conventional slide door SD. It is explanatory drawing of the conventional pin support part structure.

Next, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a pin support portion structure showing an embodiment of the present invention, and this pin support portion structure supports a pin p of a slide door SD.
The slide door SD has the basic function described with reference to FIG.
In order to support the slide door SD at an appropriate location in the hold H, two upper and lower pins p are provided on each of the left and right sides of the slide door SD.

  The driving mechanism for the pin p will be described with reference to FIG. The pin p is supported by a cylindrical casing 41 so as to be able to appear and retract sideways. A screw rod type advance / retreat mechanism 42 is connected to the rear end of the pin p, and this screw rod type advance / retreat mechanism 42 meshes with a gear rotated by a manual handle 43. For this reason, when the manual handle 43 is rotated forward and backward, the pin p moves forward and backward.

As shown in FIG. 1 and FIG. 2, at the position where the pin p appears and disappears, the partition wall b is perforated, and the steel pipe 1 is welded therein. The support portion using this steel pipe 1 is a feature of the present invention.
Further detailed description will be given based on FIG. The steel pipe 1 is fitted inside the hole o, and is fixed to the surrounding partition wall b by welding.
The steel pipe 1 need only be able to support the pin p, and therefore does not need to be long and may be short. In short, the length of the steel pipe 1 is determined according to the length of the pin p.

Since the slide door SD needs to be appropriately moved and fixed in the direction of the ship length in the hold H, a plurality of the steel pipes 1 are also attached at appropriate intervals along the length direction of the partition wall b.
By the way, as shown to FIG. 3 (B) and (C), the curling 2 is attached between the some steel pipes 1 and 1 by welding.

  As a construction method, a hole o is made in the partition wall b with an NC cutting machine, and the steel pipe 1 is inserted and welded. Next, the curling 2 may be placed between the steel pipes 1 and 1 and welded.

As described above, since the amount of heat input when welding the steel pipe 1 to the partition wall b is small, the generated distortion is reduced. For this reason, if the position of drilling is accurately adjusted to the pin p, the position of the hole, that is, the mounting position of the steel pipe 1 does not deviate from the position of the pin due to strain.
Further, by welding the curling 2, the adjacent steel pipes 1 and 1 are fixed to each other, so that the reinforcing strength is improved. Moreover, since the heat input by welding is small, no distortion occurs.

  Furthermore, since the area for supporting the pin p by the steel pipe 1 is increased despite a small increase in weight, a support structure that has a high support force and is unlikely to be deformed can be obtained.

  The present invention realizes the present invention by eliminating the concept that a portion supporting a pin requires a thick plate and considering a different reinforcing method, and although it has a simple structure at first glance, there has been a leap in the idea. This has led to the present invention. The present invention realizes an excellent effect that the workability is improved and the quality is improved, and the material cost can be reduced.

  The above embodiment is for the pin of the slide door SD, but the present invention is not limited to this, and can be applied to various applications without any limitation as long as the pin is supported.

H Funakura SD Slide door RP Roll paper p Pin h Manual handle o Hole b Bulkhead 1 Steel pipe 2 Curling 41 Casing 42 Screw rod type advance / retreat mechanism 43 Manual handle

Claims (1)

A structure for supporting a pin inserted in the bulkhead of the hull,
A plurality of steel pipes are welded to a plurality of holes formed in the bulkhead direction in the bulkhead ,
And the pin support part structure characterized by the curling being welded between each steel pipe .

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