JPH049357Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a method for forming a bottom wall, a side wall, and a ceiling wall of an assembled water tank for storing liquid. This relates to sealing materials.

(Prior art and its problems) When this type of sealing material is tightened with a tightening torque exceeding a predetermined value, it loses its repulsion function, cannot exhibit its sealing effect, and causes water leakage.

Furthermore, even if the tightening torque is set within the specified range, water leakage may occur from tightening points other than the optimal tightening torque over a long period of time, and the tightening torque is not constant. It is desirable for the main body to have one.

Hitherto, a device disclosed in Japanese Utility Model Publication No. 1983-7276 has been known as one that satisfies the above circumstances.

In this prior art, a string-shaped sealing material made of solid rubber, which is thinner than the thickness of the band-shaped sealing material, is fixed to both ends of a band-shaped sealing material made of sponge rubber.

By the way, as described above, the sealing material is applied along the length direction of the joint flange at the periphery of the unit panel, and is fixed with bolts and nuts at appropriate intervals.

However, since both the band-shaped sealing material made of sponge rubber and the string-shaped sealing material made of solid rubber are elastically deformed by the tightening torque, it is necessary to visually check the tightening torque with a torque wrench at each tightening location. There was a problem in that the tightening work had to be continued, making the tightening work very troublesome and complicated.

The present invention was developed in view of the above-mentioned conventional circumstances, and its purpose is to provide a sealing material that can maintain a constant tightening torque at a tightening point without visually checking the tightening torque with a torque wrench. The goal is to provide

(Means) The technical means taken to achieve the above purpose are:
At both ends in the width direction of a rigid body formed into a band shape of a predetermined width,
The gist is that a band-shaped foam body that is thicker than the rigid body is fixed.

Here, examples of the rigid body include metals, hard synthetic resin materials, and the like.

(Operation) According to the above technical means, the strip-shaped foam is compressed to obtain the optimum repulsive force while tightening with a tool such as a torque wrench until both sides of the rigid body abut the joint flanges of the unit panels. let

(Effects of the invention) Since the invention is configured as described above, it is possible to easily apply constant and optimal tightening torque to all tightening points without having to visually check the tightening torque using a tool such as a torque wrench. It can be tightened and completely prevents the risk of water leakage.

(Example) An example of the present invention will be described based on the drawings.
The sealing material A is made by attaching band-shaped foam bodies a ₂ to both end faces in the width direction of a rigid body a ₁ formed into a band shape of a predetermined width, and making the plate thickness of the rigid body a ₁ the same as the wall thickness of the band-shaped foam body a ₂ . Unit panels B that are made thinner than the above, have bolt insertion holes 1 drilled therein, and are connected and fixed adjacent to each other.
Bolt insertion holes ₁ are interposed between adjacent joining flanges b ₁ on each side by positioning them in bolt holes 2 drilled in the joining flanges b 1 .

The rigid body _a1 receives the tightening force when the adjacent joining flanges _b1 are connected and fixed by the bolts 3 and nuts 4 in a state where the band-shaped foam body _a2 can exhibit the best repulsion function with a uniform compression ratio. Specifically, the tightening force associated with the amount of threading of the nut 4 with respect to the bolt 3 should not be applied any more to the band-shaped foam a ₂ which has reached the compressibility state where it can exhibit the best repulsion function, that is, the joint flange. The movement of the joining flange _{b 1 is} received so that b 1 does not press the band-shaped foam member a ₂ so that the foam member a ₂ can exhibit the best repulsion function with a uniform compression _ratio . It is molded to a predetermined thickness so as to be held in between.

This rigid body a ₁ is made of a metal material, hard synthetic resin material, etc., and is connected and fixed accurately with a set tightening force, and the plate has the same thickness as the gap width secured between the joint flanges b ₁ at the connection point. The outer surface is covered with a soft material A ₃ to form a strip of a predetermined width, and bolt insertion holes are formed in the longitudinal direction corresponding to the bolt holes 2 of the joint flange B ₁ at the center portion in the width direction. Open 1.

The band-shaped foam _a2 is made of rubber foam, polyethylene foam, etc., and is formed into a square shape (Fig. 2) or a round shape (Fig. 5), and has a length attached to both end faces in the width direction of the rigid body _a1 . Fixed to the same body over the entire length in the direction (first
figure). Note that the strip-shaped foam a ₂ is attached to the rigid body a ₁ when the foam a ₂ is molded into the same body.

Such a sealing material A is applied to the outer surface of the flange b 1 by positioning the bolt insertion hole 1 of the rigid body a ₁ in the bolt hole 2 of one of the adjacent joining flanges b ₁ of the unit panels B connected adjacently to _each other. The band-shaped foam a ₂ on both sides is attached with an adhesive or the like and interposed between the joining flanges b ₁ . A bolt 3 is provided between the bolt holes 2 of both joining flanges b ₁ and passed through the bolt insertion hole 1 of the rigid body a ₁ , and is tightened with a nut 4 to connect and fix the joining flanges b ₁ to each other. Therefore, the strip-shaped foam a ₂ can exhibit the best repulsion function with uniform compression ratio between the adjacent joining flanges b _1. The space between them is a rigid body.
a ₁ to ensure that it is held securely. In other words, when the band-shaped foam _a2 is compressed to a compressibility state where it can exhibit the best repulsion function, the joint flange
The foam member a ₂ is attached to both sides of the rigid body a ₁ so that the movement of the joint flange b ₁ that presses the foam member a ₂ is absorbed so that _the band-shaped foam member a ₂ is not compressed any further. The compression ratio is kept constant (4th
figure).

[Brief explanation of the drawing]

1 to 6 show examples of the sealing material of the present invention, FIG. 1 is a front view with a part cut away and the length omitted, and FIG.
3 is a perspective view with a portion cut away, FIG. 4 is a vertical sectional side view showing a state in which the joint flanges are interposed between adjacent joint flanges, and FIGS. 5 and 6 are other implementations. An example is shown in FIG. 5 as a longitudinal sectional side view and FIG. 6 as a perspective view with a portion cut away. In addition, in the figure, A...Sealing material, _a1 ...Rigid body, _a2 ...
...Band-shaped foam, 1...Bolt insertion hole, B...Unit panel, b ₁ ...Joining flange.

Claims (1)

[Scope of utility model registration request] This is a sealing material that is interposed between adjacent joint flanges of unit panels that make up an assembled aquarium, and is a rigid body formed into a band of a predetermined width, and a band-shaped foam material that is thicker than the rigid body is fixed to both ends in the width direction. A sealing material for assembled aquariums that is characterized by: