JPH049356Y2 - - 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 within the specified range, water leakage may occur from tightening points other than the optimal tightening torque over a long period of time. It is originally desirable that

Hitherto, a device disclosed in Japanese Utility Model Publication No. 59-9276 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.

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. It is about providing.

(Means) The technical means taken to achieve the above object is that rigid strips having a predetermined thickness, which is thinner than the thickness of the foam strip, are fixed to both ends of the foam strip in the width direction.

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

(Function) According to the above technical means, the strip-shaped rigid body is tightened with a tool such as a torque wrench until both sides of the strip-shaped rigid body come into contact with the joining flanges of the unit panels, and at the same time, the strip-shaped foam is tightened.
Compress to obtain optimal repulsion force.

(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.

Moreover, when the band-shaped foam is tightened, it is forced to move elastically toward the center of the width, and in order to fill the space between the opened bolt insertion hole and the screw shaft of the bolt, the bolt insertion hole Water leakage can be further prevented, and reliability will be greatly improved.

(Example) An example of the present invention will be described based on the drawings.
The sealing material A is a rigid band-shaped body A ₂ having a predetermined thickness and thinner than the foam band A ₁ on both end faces in the width direction of the foam band A _{1 .}
The unit panels B, which are connected and fixed adjacent to each other, are interposed between the joining flanges _B1 on each side.

The band-shaped foam a ₁ is formed of rubber foam, polyethylene foam, etc., and its width is generally narrower than the width of the joining flange b ₁ , and the joining flange b ₁ is formed at the center in the width direction. bolt hole 1
A bolt insertion hole 2 is opened in the length direction corresponding to the bolt insertion hole 2.

The band-shaped rigid body _A2 is designed to maintain the entire length in the flange direction between the joining flanges _B1 on each side of the unit panels B so that the band-shaped foam _A1 can exhibit the best repulsion function with a uniform compression ratio. The joint flange at the connection point is precisely connected and fixed with the set tightening force.
b _1. It is formed from metal material, hard synthetic resin material, etc. into a rectangular (Fig. 2) or round shape (Fig. 5) with the same predetermined thickness as the interspace width, and its outer surface. is covered with a light material _A3 , and is fixed to the same body over the entire length in the thickness direction at the center in the thickness direction on both end faces in the width direction of the band-shaped foam body _A1 .

In addition, the strip-shaped foam a ₁ illustrated in FIGS. 5 and 6
In this case, it is formed into a substantially rhombic cross-section with a thick center in the width direction and a thickness that gradually decreases toward both ends, and both ends of the cross-section are formed into an end face shape corresponding to the cross-sectional shape of the band-shaped rigid body _a2 . This is to fix the band-shaped rigid bodies _a2 to the same body.

Such a sealing material A is made by pasting a band-shaped foam body a ₁ on the outer surface of one of the adjacent joining flanges b ₁ with an adhesive or the like, and attaching the band-shaped rigid body a ₂ to the joining flange b 1 so as to sandwich the bolt hole ₁ . Both joint flanges are placed on both sides in the upright width direction.
b Intervening between ₁ . Then, a bolt 3 is passed through between the bolt holes 1 of the joining flange b ₁ and tightened with a nut 4, so that the outer surface of both joining flanges b ₁ becomes a strip-shaped rigid body a ₂
By contacting both sides of the joint flanges B1, the band-shaped foam _A2 is uniformly compressed between the two joining flanges _B1 , and a compression ratio that can exhibit the best repulsion function (sealing function) is ensured over a long period of time. The sealing effect (water-sealing effect) is maintained with the best repulsion function by forming and retaining the gap.

[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 ...Band-shaped foam, _a2 ...Band-shaped rigid body, B...Unit panel, _b1 ...
joint flange.

Claims (1)

[Scope of utility model registration request] A sealing material interposed between adjacent joining flanges of unit panels constituting an assembled water tank, which is a rigid band-shaped body having a predetermined thickness that is thinner than the thickness of the band-shaped foam body and fixed to both ends in the width direction of the band-shaped foam body. A sealing material for assembled aquariums characterized by the following.