JP7064102B2 - Capped inserts and insert caps - Google Patents

Description

The present invention relates to an insert that is embedded and fixed under a floor slab to connect hanging bolts, and a cap used for the insert.

In reinforced concrete and steel-framed buildings, a method of arranging a deck plate made of steel plate between beams and arranging reinforcement and placing concrete on it to construct a floor slab is widely used.
In addition, an insert for screwing a hanging bolt for attaching a suspended ceiling, piping, and air conditioning equipment is embedded in the lower surface of the floor slab. At this time, the insert is fixed to the deck plate before bar arrangement and concrete placement.

The hanging bolt screwed into the insert protrudes from the lower surface of the floor slab and is fixed in a vertical state.
For this reason, it is not possible to screw a hanging bolt into an insert fixed to a deck plate in a factory or the like in advance to connect it, and then carry it to a construction site in that state.

It is an object of the present invention to provide a capped insert and an insert cap capable of carrying a deck plate to a construction site with a hanging bolt screwed into an insert.

The first invention of the present application made to achieve the above object comprises a cylindrical main body having a bolt hole on the bottom surface, a fixing mechanism provided on the outer periphery of the main body, and a cap provided on the lower part of the fixing mechanism. The main body is composed of a cylinder portion and a head having an enlarged diameter at the upper end of the cylinder portion, and the fixing mechanism includes a lower stopper fixed to the lower end of the cylinder portion and the cylinder above the lower stopper. It consists of a disk-shaped upper stopper that is exteriorized on the portion, and a spring that is exteriorized on the cylindrical portion between the head and the upper stopper, and the cap is a tubular fixing portion that is fixed to the lower stopper. A cylindrical movable portion provided at the lower part of the fixed portion, and a hinge connecting the fixed portion and the movable portion, and the movable portion has the same diameter and pitch as the bolt hole of the main body inside. Provides a capped insert with a bolted hole in.
The second invention of the present application is characterized in that the movable portion can rotate about the hinge to at least a position where the bolt hole of the movable portion is orthogonal to the bolt hole of the main body. Provides inserts with.
The third invention of the present application is an insert cap used by attaching to an insert for a deck plate, wherein the cap has a fixed portion fixed to the insert and a cylindrical movable portion connected to the fixed portion via a hinge. The movable portion is provided with a cap for an insert, which is characterized by having bolt holes having the same diameter and pitch as the bolt holes of the insert for the deck plate inside.
The fourth invention of the present application is characterized in that the movable portion can rotate around a hinge to at least a position where the bolt hole of the movable portion is orthogonal to the bolt hole of the main body. I will provide a.

The present invention can obtain at least one of the following effects by means for solving the above-mentioned problems.
(1) By screwing the suspension bolt into the movable part of the cap and bending the movable part, the suspension bolt can be fixed in a state parallel to the deck plate, so the suspension bolt is screwed into the insert. The deck plate can be brought into the construction site in this state.
(2) When concrete is placed on the deck plate, the screwed hanging bolt becomes a weight, and the insert with a cap is kept perpendicular to the deck plate.
(3) Since the suspension bolts can be fixed in a state parallel to the deck plate, the progress of the work should be visually confirmed by keeping only the suspension bolts used in the next work process in a vertical state. Can be done.
(4) By making the hanging bolt parallel to the deck plate, the worker is prevented from coming into contact with the hanging bolt, and the safety of the worker is ensured.

Perspective view of insert with cap Side view of insert with cap Cross-sectional view of insert with cap (1) Sectional view of insert with cap (2) Perspective view of the cap Explanatory drawing of how to attach the capped insert to the deck plate Explanatory drawing of the state where the hanging bolt is screwed into the insert with a cap Explanatory drawing of the state where the hanging bolt is fixed using the insert with a cap

Hereinafter, the present invention will be described in detail based on the examples shown in the figure.

[Example 1]
(1) Insert 10 with cap 40
The insert 10 with a cap 40 of the present invention comprises a main body 20, a fixing mechanism 30 provided on the outer periphery of the main body 20, and a cap 40 provided at the lower end of the fixing mechanism 30 (FIGS. 1 and 2).

(2) Main body 20
The main body 20 is a metal member, and the head 21 and the columnar portion 22 are integrally formed.
The head 21 is formed by expanding the diameter of the upper end of the columnar portion 22 so that the insert 10 with the cap 40 does not come off from the floor slab formed by placing concrete.
The columnar portion 22 is provided with a bolt hole 23 along the axis from the bottom surface (FIG. 3). The bolt hole 23 has a female screw shape into which a suspension bolt 60, which will be described later, can be screwed.

(3) Fixing mechanism 30
The fixing mechanism 30 is a spring provided between the lower stopper 31 fixed to the outer periphery of the lower end of the main body 20, the upper stopper 32 exterior to the main body 20 above the lower stopper 31, and the upper stopper 32 and the head 21 of the main body 20. It consists of 33.

(3.1) Lower stopper 31
The lower stopper 31 is a resin member, and includes a cylindrical portion 311 provided on the outer periphery of the lower end of the cylindrical portion 22 of the main body 20, and a diameter-expanded portion 312 protruding radially from the upper end of the cylindrical portion 311 so as to open in the outer peripheral direction.
The diameter-expanding portion 312 has flexibility, and the diameter-expanding portion 312 is open when no external force acts on it, and the diameter is reduced inward when an external force in the inner peripheral direction is applied.
The cylindrical portion 311 of the lower stopper 31 and the cylindrical portion 22 of the main body 20 may be integrated by providing a fitting portion that fits each other, or may be fixed by an adhesive or the like.

(3.2) Upper stopper 32
The upper stopper 32 is a disk-shaped member.
At the center of the upper stopper 32, a circular hole 321 through which the cylindrical portion 22 of the main body 20 is inserted is provided.
The diameter of the upper stopper 32 is larger than the diameter of the upper end of the enlarged diameter portion 312 of the lower stopper 31.
The upper stopper 32 may be made of the same resin as the lower stopper 31, or may be made of metal.

(3.3) Spring 33
The spring 33 is a metal compression coil spring 33, and the columnar portion 22 of the main body 20 is inserted between the head portion 21 of the main body 20 and the upper stopper 32 of the fixing mechanism 30 to be exteriorized.
The natural length of the spring 33 is longer than the distance between the head 21 of the main body 20 and the upper stopper 32 of the fixing mechanism 30. As a result, when the spring 33 is arranged on the main body 20, the spring 33 takes a reaction force from the head 21 of the main body 20 and presses the upper stopper 32 against the lower stopper 31 by an elastic force.

(4) Cap 40
The cap 40 connects the cylindrical fixed portion 41 and the movable portion 42 via the hinge 43.
The cap 40 may be made of resin like the fixing mechanism 30, or each member or the whole may be made of metal.

(4.1) Fixed portion 41
The fixing portion 41 inserts the lower end of the lower stopper 31 and fixes it to the lower stopper 31 with an adhesive or the like.
The fixing portion 41 is provided with a bolt hole 411 at the center (axis center).
The bolt hole 411 of the fixing portion 41 has a female screw shape having the same diameter and pitch as the bolt hole 23 of the main body 20. However, it suffices if the suspension bolt 60 can be inserted, and the diameter may be larger than that of the bolt hole 23.

(4.2) Moving part 42
The movable portion 42 is connected to the fixed portion 41 via the hinge 43.
The movable portion 42 is provided with a bolt hole 421 at the center (axis center).
The bolt hole 421 of the movable portion 42 has a female screw shape having the same diameter and pitch as the bolt hole 23 of the main body 20.

(4.3) Connection between the fixed portion 41 and the movable portion 42 The fixed portion 41 and the movable portion 42 have corresponding irregularities on opposite surfaces so that the bolt holes 411 and 421 are integrated in a continuous state. A columnar fitting portion 412, 422 including the same is provided (FIGS. 4 and 5). The side surfaces of the respective fitting portions 412 and 422 have a certain interval, and stoppers 413 and 423 having a height corresponding to the interval are provided.
In the stoppers 413 and 423, when the fixed portion 41 and the movable portion 42 are integrated by fitting the fitting portions 412 and 422, the stopper 423 of the movable portion 42 is the main body 20 rather than the stopper 413 of the fixed portion 41. Located on the side.

The fixed portion 41 and the movable portion 42 are integrated in a state where the bolt holes 411 and 421 are continuous. At this time, since the stoppers 413 and 423 are fitted to each other, the movable portion 42 does not fall off from the fixed portion 41.
Then, when the movable portion 42 is moved so that the stoppers 413 and 423 are disengaged, the fitting portions 412 and 422 of the fixed portion 41 and the movable portion 42 are disengaged, and the fixed portion 41 and the movable portion 42 are separated. Since the fixed portion 41 and the movable portion 42 are connected via the hinge 43, the movable portion 42 does not fall off.
The hinge 43 may have a conventionally known shape capable of rotating the movable portion 42 with respect to the fixed portion 41. For example, the hinge 43 may be made of a flexible resin, and the angle of the movable portion 42 with respect to the fixed portion 41 is perpendicular. The form can be bent so as to be as described above.

(5) Method of attaching the capped insert 10 to the deck plate 50 (5.1) Formation of the cap insertion hole 51 The capped insert 10 of the present invention is used by being attached to the deck plate 50.
The deck plate 50 is provided with a cap insertion hole 51 by a drill or the like (FIG. 6A).
The size of the cap insertion hole 51 is larger than the outer diameter of the cap 40 and smaller than the outer diameter of the upper stopper 32.

(5.2) Fitting of Insert 10 with Cap and Deck Plate 50 The cap 40 of the insert 10 with a cap is inserted into the cap insertion hole 51 from above the deck plate 50 (FIG. 6 (b)).
The diameter-expanded portion 312 of the lower stopper 31 of the insert 10 with a cap is configured so that the upper end thereof is larger than the diameter of the cap insertion hole 51. Therefore, when the insert 10 with a cap is inserted into the cap insertion hole 51 of the deck plate 50, the enlarged diameter portion 312 of the lower stopper 31 interferes with the insert 10.
When the insert 10 with a cap is further pushed downward in this state, the enlarged diameter portion 312 of the resin lower stopper 31 is pushed into the cap insertion hole 51 to reduce the diameter, so that the lower stopper 31 passes through the cap insertion hole 51. It is arranged on the lower surface side of the deck plate 50 (FIG. 6 (c)). The lower stopper 31 that has passed through the cap insertion hole 51 is in a state where no external force acts, and returns to the original enlarged diameter state.
Since the outer diameter of the upper stopper 32 is larger than the size of the cap insertion hole 51, the upper stopper 32 is located on the upper surface side of the deck plate 50.
Then, when the pushing of the insert 10 with the cap is stopped, the main body 20 is pushed back upward by the spring 33, and the lower stopper 31 interferes with the deck plate 50 and stops at a predetermined height (FIG. 6 (d)).
Since the spring 33 pushes up the main body 20 and pushes down the upper stopper 32, the deck plate 50 is sandwiched between the lower stopper 31 and the upper stopper 32, and the insert 10 with a cap is positioned in a state of being fitted to the deck plate 50.
A hanging bolt 60 is screwed into the capped insert 10 positioned on the deck plate 50 from below the deck plate 50.

(6) Arrangement Position of Suspension Bolt 60 The suspension bolt 60 is arranged perpendicularly to the deck plate 50 by being screwed into the bolt hole 23 of the main body 20 via the bolt holes 411 and 421 of the cap 40 (6). FIG. 7 (a)).
Further, by bending the hinge 43 to make the movable portion 42 at a right angle while being screwed only to the movable portion 42 of the cap 40, the suspension bolt 60 is arranged parallel to the deck plate 50 (FIG. FIG. 7 (b)).
At this time, if the jig 70 with a magnet is screwed into the hanging bolt 60, the magnet is attracted to the lower surface of the deck plate 50, and the hanging bolt 60 is fixed in a state parallel to the deck plate 50 (Fig.). 8).
Since the movable portion 42 of the cap 40 bends in the direction of the hinge 43, the suspension bolt 60 is also arranged in the direction of the hinge 43. Therefore, the direction in which the suspension bolt 60 is to be arranged is determined in advance, and the direction of the hinge 43 is adjusted when the insert 10 with a cap is attached to the deck plate 50.
Since the hanging bolt 60 can be fixed in a state parallel to the deck plate 50, the deck plate 50 can be carried into the construction site with the hanging bolt 60 screwed into the insert. Then, when concrete is placed on the deck plate 50, the screwed suspension bolt 60 becomes a weight, and the insert 10 with a cap is maintained in a vertical state with respect to the deck plate 50.

Further, since the suspension bolt 60 can be screwed into the bolt hole 23 of the main body 20 to be in a vertical state and screwed into the bolt hole 421 of the movable portion 42 to be in a state parallel to the deck plate 50. For example, the progress of the work can be checked by making only the hanging bolt 60 to which the hanging metal fitting for the next process is attached in a vertical state, or by making the hanging bolt 60 which is not in the hanging process of the day in a parallel state. It can be visually confirmed and work omissions can be eliminated.
By making the hanging bolt 60 parallel to the deck plate 50, the worker is prevented from coming into contact with the hanging bolt 60, and the safety of the worker is ensured.

[Example 2]
In the first embodiment described above, the capped insert 10 including the main body 20, the fixing mechanism 30, and the cap 40 has been described, but the object of the present invention can be achieved even if the cap 40 is attached to the conventionally used insert. can do.

10 Insert with cap 20 Main body 21 Head 22 Cylindrical part 23 Bolt hole 30 Fixing mechanism 31 Lower stopper 311 Cylindrical part 312 Enlarged part 32 Upper stopper 321 Circular hole 33 Spring 40 Cap 41 Fixing part 411 Bolt hole 412 Fitting part 413 Stopper 42 Movable part 421 Bolt hole 422 Fitting part 423 Stopper 43 Hinge 50 Deck plate 51 Cap insertion hole 60 Hanging bolt 70 Jig with magnet 71 Magnet

Claims (4)

A columnar body with bolt holes on the bottom and
A fixing mechanism provided on the outer circumference of the main body and
It consists of a cap provided at the bottom of the fixing mechanism.
The main body is composed of a columnar portion and a head having an enlarged diameter at the upper end of the columnar portion.
The fixing mechanism includes a lower stopper that is fixed to the lower end of the cylinder portion, a disk-shaped upper stopper that is exteriorized on the cylinder portion above the lower stopper, and the cylinder between the head and the upper stopper. It consists of a spring that exteriors the part and
The cap comprises a cylindrical fixing portion fixed to the lower stopper, a cylindrical movable portion provided at the lower part of the fixing portion, and a hinge connecting the fixing portion and the movable portion.
The movable portion has a bolt hole having the same diameter and pitch as the bolt hole of the main body inside.
Insert with cap. In the capped insert according to claim 1,
The movable portion is characterized in that it can rotate around a hinge at least to a position where the bolt hole of the movable portion is orthogonal to the bolt hole of the main body.
Insert with cap. An insert cap that is used by attaching to a deck plate insert.
The cap comprises a fixing portion fixed to the insert and a cylindrical movable portion connected to the fixing portion via a hinge.
The movable portion is characterized by having a bolt hole having the same diameter and pitch as the bolt hole of the deck plate insert inside.
Insert cap. In the insert cap according to claim 3,
The movable portion is characterized in that it can rotate around a hinge at least to a position where the bolt hole of the movable portion is orthogonal to the bolt hole of the main body.
Insert cap.

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