JPH094154A - Metal joint for leader - Google Patents

Abstract

PURPOSE: To facilitate joining works for a leader and improve the appearance of the joining part of the leader by coupling an outer fit cylinder with an inner fit cylinder in slidable arrangement within an external cylinder so that a joint is formed, installing the joint in the joining part of the leader, and fitting the outer fit cylinder on the upper leader portion and the inner fit cylinder into the lower leader portion. CONSTITUTION: An internal cylinder 23 is structured so that an outer fit cylinder 21 and inner fit cylinder 22 for a leader B are joined together while a step 23 is provided, and is installed within an external cylinder 1 slidably so that a leader joint A is accomplished. The upper portion of the leader B is inserted through the outer fit cylinder 21 of the joint A while the lower portion of the leader B is fitted on the inner fit cylinder 22, and the upper and lower portions are connected together through the internal cylinder 2. The fitting is stopped on the way so that the ends of the leader portions do not contact with the step 23, and thereby of thermal expansion and contraction is absorbed. After completion of the connection, the external cylinder 1 is slided so that the connection part is covered, and a sealing agent such as silicone is applied or put fully to prevent water leakage. This permits easy joining of the leader cut for length adjustment and the joining part is hindered from being exposed to the exterior surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for connecting metal vertical plates.

[0002]

2. Description of the Related Art Conventionally, when connecting metal ledges to each other, one end of the ledge is formed with an expanded or contracted tube portion, and another end is inserted into the end to connect them. It was However, in order to adjust the length, when the vertical rail is cut in the middle, this expanded or contracted connecting portion may be cut off and lost.In this case, joints are used to connect vertical rails with the same outer shape. It was constructed using other parts such as.

[0003] However, the conventional joint has been widely known in the form of simply connecting an expanded pipe portion which fits to a connecting vertical end and externally fits, and a compressed pipe portion which internally fits and connects.

In this method, the lower end of the upper vertical rail is fitted in the expanded pipe portion and the upper end of the lower vertical rail is externally fitted in the contracted pipe portion for connection.

[0005]

In such a conventionally known joint, since the upper edge of the vertical ledge located at the lower part is exposed on the outer surface when the joint is installed, burrs and deformations when cut, or The "burn" caused by the heat when cutting was noticeable.

If such burrs or deformed end portions appear on the outer surface, it is a problem in appearance, and the metal structure changes due to heat at the time of cutting and the end surface of the cut portion is exposed to the outside, so that rust or corrosion occurs. Was likely to occur.

[0007]

In order to solve the above-mentioned problems, the vertical joint according to the present invention is protected by providing an outer cylinder for closing the easily corroded part of the end surface or the end where deformation or burning occurs. Further, the contracted tube portion is further projected downward from the outer cylinder to facilitate the fitting with the vertical shaft.

[0008]

[Function] By providing an outer cylinder, it is possible to prevent the end face from being exposed to rainwater and to be corroded. This improves the durability of the warp, and when the discolored portion generated from the corroded portion sags, It is also possible to prevent the soil from becoming dirty.

Further, since the fitting work is facilitated, the safety at a high place is ensured, and the burn and the deformed portion at the time of cutting are closed and the appearance is good.

[0010]

1 is a perspective view of a joint A, and FIG. 2 is a side sectional view thereof.

The joint A is composed of an outer cylinder 1 and an inner cylinder 2, and is constructed by combining short tubes made of stainless steel each having a diameter of about 0.6 mm to 1 mm.

The inner cylinder 2 is a short tube having a height of about 150 mm, and the outer fitting cylinder 21 having a large diameter at the upper part is fitted on the vertical table B at the upper part and the inner fitting cylinder 22 having a smaller diameter at the lower part. The shape is such that it can be fitted inside the tee B. Further, the outer cylinder 1 has a shape that allows the inner cylinder 2 to be fitted therein, and when combined, if the lower end of the inner cylinder 2 is projected downward by about 10 mm to 20 mm, the construction convenience will be further increased.

The outer cylinder 1 has an outer shape that fits over the inner cylinder 2, and upper and lower edges are formed with engaging edges 11 curved in the inner circumferential direction to prevent the inner cylinder 2 from falling off. I'm out. The engagement edge 11 is provided by molding after the inner cylinder 2 is arranged, and can be formed by pressing or spatula drawing.

On the other hand, the inner cylinder 2 is composed of an upper fitting cylinder 21 which is fitted on the vertical ledge B and an inner fitting cylinder 22 which is fitted on the vertical ledge B via a step 23. That is, the external fitting cylinder 21
The outer peripheral surface of is contactable with the inner peripheral surface of the outer cylinder 1 and is slidable.

These parts can be obtained by subjecting a flat plate such as a stainless steel plate to a spatula process, or from a short tubular pipe part to a forming process by pressing or the like, and can be painted.

When the engaging edge 11 of the outer tube 1 is formed during assembly, the inner tube 2 cannot be mounted inside. Therefore, the inner tube 2 is fitted into the outer tube 1 before the engaging edge 11 is formed. After that, at least one engaging edge 11 is formed to prevent the inner cylinder 2 from coming off.

To actually carry out the work, the upper end of the vertical rail B to be built in the lower part is fitted into the gap between the outer cylinder 1 and the inner cylinder 2 of the joint A. At this time, the outer cylinder 1 is slid upward. If the lower end of the inner cylinder 2 is projected downward, the construction becomes easy, and the fitting state such as the fitting depth can be easily confirmed. (Fig. 2)

Next, at the lower end of the vertical tray A constructed on the upper side,
The connection is completed by externally fitting the outer fitting cylinder 21 of the joint A, and then the outer cylinder 1 is slid downward to lower the fitting, and the work is completed well and the construction is completed. (Fig. 3)

When a sealing agent such as silicon is applied to the fitting connection portion during the construction as described above, water leakage will be ensured. Further, by not placing the vertical toe B to the back and stopping and placing it in the middle, a margin is created in the fitted portion, and it is possible to absorb the effect of thermal expansion and contraction of the vertical toe B at this portion during construction.

In addition to the fact that the construction is easy after the construction as described above, the appearance is also very good, and burrs and deformations when cutting the vertical plate B can be constructed, and the cut portion is removed. Since the structure is covered with the cylinder 1, there is no fear of corrosion.

[0021]

As described above, the vertical joint according to the present invention has a structure in which the cut end face of the vertical joint is not exposed to the outside when connecting the vertical joints, so that the end face is rusted or corroded. The appearance after the construction is good because there is little burnout or deformation at the time of cutting.

Further, the structure is such that the inner cylinder can be slidably moved inside the outer cylinder, and by sliding the outer cylinder up and down, the lower end of the inner cylinder is projected downward to facilitate the construction. Is to have.

Such work is often carried out at a high place, and there are many advantages such as ease of construction and safety of work.

[Brief description of drawings]

FIG. 1 is a perspective view of a joint and a vertical table according to the present invention,

FIG. 2 is a side cross-sectional view when a vertical rail is installed on the joint,

FIG. 3 is a side cross-sectional view when the vertical joint is installed on the joint.

FIG. 4 is a perspective view of a joint when a vertical ledge is installed on the joint.

[Explanation of symbols]

 A ... Joint B ... Vertical 1 ... Outer tube 11 ... Engagement edge 2 ... Inner tube 21 ... Outer fitting tube 22 ... Inner fitting tube 23 ... Step

Claims (1)

[Claims] 1. A vertical joint comprising an outer pipe and an inner pipe, the inner pipe being slidably arranged on the inner circumference of the outer pipe for inserting the vertical pipe between the lower outer pipe and the inner pipe. A metal vertical joint that has a gap around it.