JPH04161563A - Holding device for batter for form - Google Patents

Abstract

PURPOSE:To facilitate holding and removing of batters by installing a support member to a separator disposed between sheathing boards of form, rotatively inserting a holding body in the support member, and holding a batter on the holding portion of the holding body. CONSTITUTION:An internal thread portion 12 is screwed onto the external thread portion 5 of a separator 3, and a support member 11 is installed at the end of the separator 3 in a protruding condition. A batter 4 is positioned between a holding body 14 and a sheathing board 2, and the holding body 14 is rotated. When the holding body is rotated to a substantially horizontal position, a holding portion 15 is brought into contact with the side of the batter 4. A conical spring washer 17 is compressed, so that the batter 4 is held by the sheathing board 2 and the holding portion 15. When the batter 4 is removed, the holding portion 15 is removed from the batter 4 by striking the holding portion 15 from the side with a hammer or the like to rotate the holding body 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a formwork slat material holding fixture used when constructing concrete structures such as walls, gutters, and floors.

[Prior Art] Conventionally, as this type of formwork flap retaining metal fitting, one having the structure shown in FIG. 9 is known.

In this conventional structure, a separator 3 is arranged between the JNN 22, for example, wooden plywood, on which the concrete C of the formwork 1 is poured, and a separator 4 is attached laterally to the side of the weir plate 2, and the separator 3 A male threaded part 5 is formed at the end of the holding shaft 6.A female threaded part 7 of a holding shaft 6 is screwed into this male threaded part 5.A holding fitting 9 is passed through the male threaded part 8 of the holding shaft 6, and the male threaded part 5 is screwed into the male threaded part 5. A tightening nut 10 is screwed onto the portion 8 to tighten and hold the cover member 4, in this case a steel pipe, on the weir plate 2.

[Problems to be Solved by the Invention] However, in the case of the above conventional structure, the holding fitting 9 is a separate part separated from the holding shaft 6, and the tightening nut 1
0 must be tightened and rotated using a tool such as a wrench, and the flap material 4 must be tightened and held by the holding fitting 9. This makes the work of holding the flap material 4 troublesome, and the work of holding the flap material 4 is difficult. The assembly has the disadvantage of low workability.

[Means for Solving the Problems] The present invention aims to solve these inconveniences, and its gist is that a separator is provided between the weir plates of the formwork, and a separator is provided on the side of the weir plate. It is for holding the attached flap material, and includes a support member that is taken out by the separator, and a holding part that is rotatably inserted through the support member and capable of holding the flap material. There is a saw material holding metal fitting for formwork which is characterized in that it is configured with a holding body.

[Operation] A support member is attached to the separator, and the holder is rotatably inserted through the support member, so that the foil material is fixedly held by the holding portion of the holder.

[Example] Figures 1 to 8 show examples of the present invention, Figures 1 to 4 are the first embodiment, Figure 5 is the second embodiment, and Figure 6 is the third embodiment. , FIG. 7.8 shows the fourth embodiment.

Incidentally, the same reference numerals are used for the same parts as those of the conventional structure shown in FIG. 9 above.

In the first embodiment shown in FIGS. 1 to 4, 11 is a support member, in which case metal hexagonal holes 1 to 1 are used;
A small-diameter stepped portion 11a is formed at one end, and a female screw portion 12 that can be screwed onto the male screw portion 5 of the separator 3 is formed at the other end, and a hexagonal head portion 13 is formed at the other end. It is configured as follows.

Reference numeral 14 denotes a holding body, which includes a metal cylindrical portion 14a that is rotatably inserted into the outer circumferential surface of the support member 11, and a metal welded to the outer circumferential surface of the cylindrical portion]/1a. Made of siding:
It consists of a holding section 15 of the IJ (IJ).

Reference numeral 16 denotes a seat member, which is made of synthetic resin and has a small diameter hole 16a that can be press-fitted into the small diameter stepped portion of the support member 11 mentioned above, and an inner hole formed therein.

] 7 is a countersunk washer, in this case two pieces are used, and the countersunk washer] 7 is a part Pf which presses against the holder 14 when holding the flap member 4 to hold it] 5 or the flap member 4 The structure is such that the holding body 14 cannot freely rotate due to this frictional action.

In this case, the length from one end of the support member 11 to the inner side surface of the support part 13 is calculated by taking the outer diameter of the steel pipe that is the filler material 4 into consideration, and taking the filler material/-1 (=t 41 o'clock). The two disc spring washers 17 are dimensioned to be in a compressed state.

Since this first embodiment has the above-mentioned configuration, the countersunk washer 17 is inserted into the support member 11 as shown in FIG.
4, and press-fit the seat member 16 into the end of the support member 11 and remove it.The finished product of the retaining metal fitting for the formwork for steel pipes is assembled.

Therefore, as shown in Fig. 2.3.4, the female thread part 12 of the support member 11 is screwed into the first thread part 5 of the separator rake 3, and this screwing is done by using a spanner or box wrench to connect the hexagonal head part 13 of the separator rake 3. As a result, the support member 11 is attached to the end of the separator 3 in a protruding state, and in this state, the support member 14 is pushed through the support member 11 &2, so that it can freely rotate. In this state, the holding part 15 is hanging downward due to its own weight, and in this case, the holding body 14 is in a state where it is slightly sliding toward the separator 3 side.

Next, in this case, the horizontal flap material 4 is connected to the holder 14 and the weir plate 2.
When the holding body 14 is rotated in two directions, ``rightward or leftward'', and rotated to a substantially horizontal position as shown in FIG. The disk spring washer 17 is compressed, and the holding part 15 is pressed against the flap 4 due to the action of this spring, and the flap 4 is held between the weir plate 2 and the holding part 15: l/j y
It will be held as follows.

To remove the sheathing material 4, hit the holding part 15 from either side with a hammer or the like to rotate the holding body 14 to the right or left. 14 becomes freely rotatable and hangs down due to its own weight with the holding part 15 facing downwards. In this state, remove the vertical flap 4 and turn the hexagonal head of the holding part 13 to remove the supporting member. 11 and rotate it to remove it from the separator 3.

Alternatively, another method of removal is to loosen and turn the hexagonal head of the holding part 13 of the support member 11, so that the holding body 14 can be slid slightly in the axial direction, and thus the holding part 15 can release the flap member 1. , Therefore, the cover member 4 can also be removed.

Therefore, the support member 11 is attached to the separator 3, and the holder 14 is rotatably inserted through the support member 11. By rotating the holder 14 in either the left or right direction, the holder 14 can be attached to the support member 11. is fixedly held by the holding part 15 of the holding body 14, so that the porcelain material 4 can be easily fixed and held. By loosening and rotating the
As a result, the workability of fixing and removing the flap material 4 can be significantly improved.

The second embodiment shown in FIG. 5 shows a separate structure, and in this case, the batten material 4 of the first embodiment is made of a steel pipe, whereas the batten material 4 is a square pipe. Case support member 11
By inserting one countersunk washer 17 into the holder 14, then inserting the cylindrical portion 14a of the holder 14, and press-fitting the seat member 16 into the end of the support member 11, the flap material for the formwork for a square pipe is obtained. The finished product of the holding metal fittings is assembled.

In addition, in this example, the outer diameter of the steel pipe 4 is 48.6.
mm, whereas the length of one side of the square pipe is 50 mm, the number of disc spring washers 17 is changed to absorb the dimensional difference between the steel pipe and the square pipe, and the support member 11 and holder 14 can be shared. However, if sharing is not considered, a structure similar to that of the first embodiment can be used.

This second embodiment also provides the same effects as the first embodiment.

The third embodiment shown in FIG. 6 shows a separate structure, in which the seat member 16 of the first embodiment is formed in the shape of a metal ring, and this seat member 16 is attached to the end of the support member 11 by welding. ,
A spacer ring 18 is inserted between the seat member 16 and the holding body 14.

This second embodiment also provides the same effects as the first embodiment.

The fourth embodiment shown in Fig. 7.8 shows a separate structure, in which case it is applied to the case where horizontal flaps 4 or three pieces of wood are arranged, and a holding part is added to the holding body 14 of the first embodiment. 15 by welding and forming two pieces.

This third embodiment also provides the same effects as the first embodiment.

Note that the shapes of the holding body 14 and the holding portion 15 are changed and designed as appropriate depending on the size of the pot material 4.

Further, although the holding portion 15 is formed by welding, it may be manufactured by other processing methods such as casting or forging.

Further, although the above embodiment is applied to a case where the batten materials 4 are arranged in the horizontal direction, the present invention can also be applied to a case in which the batten materials 4 are arranged in the vertical direction.

Further, in the above embodiment, the pipe material 4 is configured so that it can be used in both a steel pipe and a square pipe, but a special product can also be manufactured without taking these considerations into account.

Furthermore, although the disc spring washer 17 is used in the above embodiment, other spring members such as cylindrical coil springs or elastic materials such as urethane rubber may be used.

Furthermore, it is sufficient that the disc spring washer 17 or the like is capable of lightly pressing the flap material 4 to prevent the holder 14 from freely rotating under its own weight when the holder 14 comes into contact with the flap material 4. ,
The receiving portion 13 receives the lateral pressure of the weir plate 2 due to concrete pouring.

Furthermore, the separator 3 of the above embodiment has a structure in which a male threaded portion 5 protrudes from the end, and therefore a female threaded portion 12 is formed on the support member 11 so that the separator 3 can be connected. Some have a structure in which a female screw is carved into the end of the support member 11, and in this case, a male screw portion that can be screwed into the female screw is integrally formed on the support member 11, or a male screw portion that can be screwed onto the female screw is formed on the support member 11. Leave it as it is, one end is screwed to this l1lftvA child part 12, and the other end is screwed to the female screw of this separator. It may be configured as follows.

[Effects of the Invention] As described above, the present invention includes attaching a support member to a separator,
The holder is rotatably inserted through the support member, and by rotating the holder in either the left or right direction, the lumber can be fixedly held by the holding part of the holder. The material can be easily fixed and held, and the material can be released by rotating the holder to the left or right, or by loosening and rotating the supporting member. Significantly improves the workability of fixing and removing materials.
can be done, and the effect is remarkable.

As described above, the intended purpose can be fully achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an exploded perspective view of the first embodiment, FIG. 2 is a side sectional view thereof, FIG. 3 is a partial rear view thereof, and FIG. 4 is a diagram showing the installed state. Perspective view, Figure 5 is the second
FIG. 6 is a side sectional view of the third embodiment, FIG. 7 is a side sectional view of the fourth embodiment, FIG. 8 is a partial rear view thereof, and FIG. 9 is a conventional granulation model. FIG. ] Formwork, 2. Weir board, 3. Separator, 4. Hana material,
]4 Holding body, 15... Holding part. October 22, 1990

Claims (1)

[Claims] A separator is disposed between the weir plates of the formwork and holds the flap material attached to the side of the weir plate, and a support member attached to the separator and a rotatable member attached to the support member are provided. A holder for holding flutter material for formwork, comprising: a holder having a holding portion that can be inserted through the holder body and capable of holding the flutter material.