JPS6211828Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is a method of tightening and joining adjacent joining flanges of unit panels that assemble and form the top wall of an assembled water tank, so that bolts and nuts exposed inside the tank can be fastened together. The present invention relates to a cover device for bolts and nuts that protects the bolts and nuts from rusting due to moisture and water vapor in a tank by storing the bolts and nuts in a sealed manner.

<Conventional technology> Conventionally, a cover device for sealingly storing bolts and nuts exposed in a tank was developed by Jitsukasho.
There is a structure disclosed in Japanese Patent No. 57-3695.

When the joining flanges of unit panels are fastened together with bolts and nuts, such a cover device is attached to a strip attached along the inner surface of both joining flanges, and the bolt is fitted along the strip and attached. It consists of an elongated body that accommodates the head or nut, and a filler that closes both ends of this elongated body.

However, in the conventional cover device, when the joining flanges of unit panels are fastened together with bolts and nuts, strips are provided along the inner surfaces of both the joining flanges, and the strips are inserted between the outer surfaces of the joining flanges. As with the intervening sealing material, special joining work must be done in which bolts must be inserted through the parts while being held down to prevent them from shifting, and then tightened and fixed with nuts, so joining the unit panels together is difficult. There was a problem that not only became very troublesome and caused an extension of the construction period of the assembled water tank, but also increased the fatigue of the workers. Moreover, after the strips have been attached through a laborious process, the elongated body for housing the bolt head or nut must be attached, respectively.

<Problems to be solved by the invention> The problems to be solved by the invention are to make it possible to store the bolt heads and nuts at the same time with a single touch operation without causing any hindrance to the work of joining unit panels together. The purpose of the present invention is to provide a cover device for bolts and nuts.

<Means for solving the problem> The technical means taken by the present invention to solve the above problem is to reduce the head of the bolt that is present between one side of the joint flange of the unit panel on the top wall of the assembled water tank. The bolt head storage chamber and the nut storage chamber, in which all the bolts and nuts are hermetically housed as a group, are made of a contact-resistant resin material and are formed to have a substantially arc-shaped cross section and are placed opposite to each other. The arcuate lower opening edge of the chamber is integrally formed by connecting it with a connecting piece passing through the lower end of the joining flange.

<Function> The present invention is designed to connect the connecting piece between the arcuate upper opening edges of the bolt head storage chamber and the nut storage chamber below one side of the hanging joining flange of the unit panel that is fastened and joined by bolts and nuts. While the opening is widened, the joint flange is elastically attached to one side of the joint flange so that all the bolt heads existing on one side of the joint flange are placed in a bolt head storage chamber, and all the nuts are grouped together in a nut storage chamber. Store them at the same time.

<Example> An example of the present invention will be described based on the drawings.
The cover device main body A is made of a contact-resistant resin material such as ABS resin, and the entire length is assembled with the connecting flange 1a from which the unit panel 1 that forms the top wall B of the aquarium can hang down.
Bolts 2 have a length slightly shorter than one side and face each other by sandwiching the joint flange 1a that is fastened together.
A bolt head storage chamber a1 that stores the head _2a of the bolt head and a nut storage chamber a2 that stores the nut ₃ are connected by a connecting piece _a3 via the lower end of the joining flange 1a to form an integral body.

The bolt head storage chamber a ₁ and the nut storage chamber a ₂ are formed to have a substantially arcuate cross-section and are large enough to accommodate the head 2a of the bolt 2 and the nut 3 including the helical shaft portion 2b of the bolt 2, respectively. Then, the arcuate opening edges of the two chambers a ₁ and a ₂ are made to face each other, and the two chambers a ₁ and a 2 are made to face each other.
The lower end opening edges of the arcuate opening edges _a2 are integrally connected by a connecting piece _a3 having a substantially U-shaped cross section and passing through so as to cover the lower end portion of the joining flange 1a.

The cover device main body A is formed by integrally connecting a bolt head storage chamber _A1 , a nut storage chamber _A2 , and a connecting piece _A3 by extrusion molding to form a bolt head storage chamber _A1 and a nut storage chamber A. By cutting the upper boundary part with ₂ along the length direction and elastically expanding and deforming the connecting piece a ₃ as the center, the area between the arcuate upper opening edges of both chambers a ₁ and a ₂ is expanded and opened. The bottle 2 and the unit panel 1, which are fastened together by the nut 3, can be impact-fitted to both sides of the joining flange 1a by elastic action.

Therefore, in this embodiment, _three connecting pieces a are centered below each side of the joining flange 1a that hangs down from the periphery of the unit panel 1 of the ceiling wall B which is assembled into a flat shape by ordinary joining work. As a result, the area between the opening edges of the upper ends of the arcs of the bolt head storage chamber _A1 and the nut storage chamber _A2 is expanded and deformed artificially (the third
(two-dot chain line in the figure), the cover device main body A is attached by a one-touch operation such that it is clamped against both outer surfaces of one side of the joint flange 1a by elastic action, and the cover device main body A is attached by sandwiching one side of the joint flange 1a. All the heads 2a of the bolts 2 on both sides can be stored in the bolt head storage chamber _A1 , and all the nuts 3 can be stored as a group in the nut storage chamber _A2 at the same time (Fig. 2). .

In addition, as shown in FIG. 2, the four openings at both ends of the cover device main body A attached to one side of the joint flange 1a on the periphery of the unit panel 1 are connected to the outer surface of the joint flange 1a and the cover device main body A perpendicularly adjacent to each other, as shown in FIG. The head 2a of the bolt 2 and the nut 3 are then closed.
This is to store and protect the items in a sealed manner.

<Effects of the invention> As mentioned above, the bolt and nut cover device of the invention covers, as a group, all the heads of the bolts and all the nuts that are sandwiched between one side of the joint flange of the unit panel that assembled and formed the top wall of the assembled water tank. A bolt head storage chamber and a nut storage chamber, which are to be stored in a sealed manner, are made of a contact-resistant resin material and are formed to have a substantially arc-shaped cross section and are opposed to each other. Since they are integrally formed by connecting with a connecting piece passing through the lower end of the joining flange, after the joining flanges of the unit panels are fastened together by normal joining work and the top wall of the assembled aquarium is assembled, By attaching a cover device to each side of the joint flange of the ceiling wall, the bolt heads and nuts present on one side of the joint flange can be hermetically housed and protected as a group. Therefore, no support is provided to the mutual joining of the unit panels that assemble and form the top wall of the assembled aquarium.

Moreover, the cover device is artificially expanded and deformed around the connecting piece portion, and the area between the opening edges of the arc upper ends of the bolt head storage chamber and the nut storage chamber is expanded, and elastic action is applied to one side of each joint flange. Since it can be installed with a one-touch operation by attaching it in a clamp-like manner, the installation workability is greatly improved, resulting in excellent efficiency and reducing operator fatigue.

Thus, the intended purpose can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the bolt and nut cover device of the present invention, and FIG. 1 is a partial cross-sectional view showing the joint flanges of unit panels that form the top wall of an assembled water tank are attached individually on each side. FIG. 1 is a sectional view taken along the line 1, and FIG. 3 is a partially enlarged perspective view showing the installed state. In the figure, A: Cover device body, _a1 : Bolt head storage chamber, _a2 : Nut storage chamber, _a3 : Connection piece, 1:
Unit panel, 1a: joint flange, 2: bolt,
2a: Head, 3: Natsuto, B: Ceiling wall.

Claims (1)

[Scope of utility model registration request] In an assembled aquarium in which the ceiling wall is formed by joining together the joint flanges hanging from the periphery of the unit panel with bolts and nuts, all the heads of the bolts and all the nuts that are present between one side of the joint flange of the unit panel are attached. A bolt head storage chamber and a nut storage chamber, which are hermetically stored as a group, are made of an impact-resistant resin material and are formed into a substantially arc-shaped cross section and are opposed to each other. A cover device for bolts and nuts in an assembled water tank, which is integrally formed by connecting the opening edge with a connecting piece passing through the lower end of a joining flange.