JP2652287B2 - Metal fitting for adding separator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting for refilling a separator which is used to add to the end of the separator when the length of the separator for maintaining the spacing of the form panels is short during construction of a concrete structure. It is.

[0002]

2. Description of the Related Art In general, when forming a concrete structure such as a reinforced concrete building, a wall of a fence, a beam, a column, or the like, two formwork panels are arranged to face each other and concrete is poured between these panels. At this time, a large number of separators are mounted between the two form panels to maintain a constant interval between the form panels.

Various types of separators for such applications are commercially available, such as those for walls, beams, columns, etc. Usually, 100 to 25 for walls, for example, for walls.
0mm, 300 ~ 500mm for beams, 550 ~ 800mm for columns2
Predetermined sizes are prepared at intervals of 0 to 50 mm and supplied to the site, and those having a suitable length can be selectively used.

However, for example, a separator for a wall is 100
, 120, 150, 180, 200, and 250 mm are provided as ready-made products with six specified dimensions.
In the actual construction site, 125, 135, 195,
Very often, it is necessary to construct a wall with a wall thickness of 205, 215, and 255 mm, which cannot be accommodated by the above-mentioned off-the-shelf products. In such a case, conventionally, two separators shorter than the required dimensions are used. After adjusting the length of the separator to match the spacing of the formwork panels, the ends are welded and integrated, or the ends of the two separators are connected and integrated using a dedicated separator joint fitting. Had been used.

[0005]

However, in the case of using the welded two small separators as in the former case, the work of cutting the separator for size adjustment and the work of welding are complicated and time-consuming. All the work must be performed on site, and the work must be performed on a large number of separators. In addition, in the welded state, the axes of both separators are connected in a staggered state, and one of the two separators may be welded with the axes slightly shifted from the other. Therefore, it is necessary to re-drilled through-holes of the separator provided in the formwork panel again, in which provisions wall thickness for differing in further axis come to differ delicately.

[0006] When the latter is used, the size adjustment work and the welding work can be omitted, and the efficiency is improved. However, this type of joint fitting has a fixed size between the ends of the two separators. on superimposed just fitting in, since they are tightened strongly from the side in fastening force by the screw which is provided in a direction perpendicular to the axis of the separator, the axis of both the separator similar to the former There is an inconvenience that they are connected in a staggered state, and it is of course necessary to consider the position of the through holes in the formwork panel.If the joint fittings are not tightly tightened, both That pressure could lead to fragmentation.

Further, Japanese Utility Model Laid-Open No. 2-2946 discloses a contact
And a connecting member and a rod-shaped member.
Connect the screw parts formed at both ends in opposite directions, and connect
The distance between the rod-shaped members screwed to both ends of the bracket is
Forming support which is adjusted by the reciprocation of the member into and out of the connection fitting
Is disclosed.

[0008] In such a form support, the above-described welding
It is said that the labor of work and the axis of the separator at both ends are different
There is no problem. However, used between formwork panels
Separators are used for each form panel.
And all of the separators have the same overall length.
Although it is necessary to use the above-mentioned
Since the screw engraved on the is penetrated on both sides,
The tip of the screw part of the rod-shaped member screwed to both ends is inside the connection fitting
Can be screwed through the fitting without being received at the specified position
In order to make all the separators the same length, the connection metal
It is necessary to finely adjust the degree of screwing between the tool and both rod members.
You. Especially, the above-mentioned form support is attached to the separator
When transporting to the site, the total length of multiple separators
Is adjusted to be the same,
The rod-like members screwed to both ends of the connection fitting by vibration
Before moving back and forth in the connecting fittings slightly and re-attaching to the formwork panel
Problem that it has to be adjusted again and it takes time
There was a point.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem. When a concrete structure in which dimensions between form panels are not compatible with a separator having a specified size is not applicable, the separator having a specified size is used. Another object of the present invention is to provide a metal fitting for a separator that can easily and quickly produce a reinforced separator that is accurately adapted to the inter-panel dimension.

[0010]

In order to achieve the above-mentioned object, according to the present invention, there is provided a fitting for attaching a separator, as shown in the drawings corresponding to the embodiments, a rod-shaped main body having a predetermined length. A fixed connecting part 2 to a fixing fitting is formed at one end of the rod-shaped main body 1,
At the other end of 1, screw the front end thread 7 of the separator A.
And a screw hole 8 for inserting the screw hole.
The distal end surface 71 of the distal end thread portion 7 of the parator A is abutted and received.
The nut-like connecting member 3 is fixed coaxially with the axis of the rod-shaped main body 1.
Yes it is, furthermore, characterized in that the formation of the Orijo for circumferential grooves 9 on the outer periphery of the rod-shaped body 1 between the fixed connecting part 2 and the nut-like connecting member 3 of the base end.

Further, in the above configuration, in order to adapt to various applications, a fitting member 10 adapted to the application is inserted into the portion of the rod-shaped main body 1 between the fixed connecting portion 2 and the base end of the nut-like connecting member 3. It can be configured.

[0012]

The fitting for attaching a separator having the above construction is provided with one of the threaded portions 7 at both ends of the separator A and the rod-shaped main body 1.
By simply tightening the nut-like connecting member 3 provided at the other end of the above, a refill separator having a desired size can be obtained. That is, the nut-like connecting member 3 is the tip of the separator A.
It has a screw hole for screwing the screw part 7
On the inner end surface 81 of the screw hole
Since the contact portion 71 is configured to receive the contact , the distal end surface 71 of the distal end thread portion 7 of the separator A is connected to the nut-like connecting member 3.
Is completely screwed until it comes into contact with the inner end surface 81 of the screw hole 8 so that the sum of the dimensions of the rod-shaped main body 1 having the specified length and the separator A cannot be matched with the separator A having the specified size.
The dimensions can be set to be the same as those between the frame panels B.

[0013] Further, in the state of being connected to the separator A as described above, the separator A and the metal fitting of the present invention are coaxially and integrally connected to each other to form a refilling separator. The groove 9 and the metal member 10 provided on the other end side of the separator A can be used as they are. In addition, since the peripheral groove 9 and the abutment member 10 on one end side provided in the metal fitting of the present invention exert their functions,
It can be used without any difference from ordinary separator A.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of a metal fitting for adding a separator according to the present invention. 1 to 3
In the figure, reference numeral 1 denotes a rod-shaped main body, which is made of an iron rod having substantially the same diameter as the separator A to be refilled, and formed to a specified length. At one end of the rod-shaped main body 1 is formed a mounting screw portion 2 as a fixed connecting portion, and at the other end portion, a fixing screw portion 4 of a nut-like connecting member 3 is formed. On the outer peripheral portion adjacent to the base end of the fixing screw portion 4, there is formed a screw advance restriction circumferential groove 5 having a flange portion 5 a having a diameter larger than the diameter of the screw portion 4.

The nut-like connecting member 3 is formed in a hexagonal nut shape or a polygonal or cylindrical shape for easy picking operation, and a base end portion of the nut-like connecting member 3 comes into contact with a flange portion 5a of the screw-in regulating circumferential groove 5. After being screwed into the fixing screw portion 4 of the rod-shaped main body 1 until
Caulked to the rod-shaped main body 1 (6 denotes the caulking prevention part)
And is screwed into the fixing screw portion 4 of the rod-shaped main body 1 to about half of the entire length, whereby the center screw hole tip side portion of the connecting member 3 is separated from the separator A Functions as a screw hole 8 of a fixed length to be screwed into the tip screw portion 7 of the rod-shaped body.
The end face of the tip A of the tip screw part 4 of the separator A receives contact.
It functions as a rear end face 81 to be formed.

Reference numeral 9 denotes a folding circumferential groove formed on the outer periphery of the intermediate portion between the one end side mounting screw portion 2 and the other end side fixing screw portion 4 of the rod-shaped main body 1. Reference numeral 10 denotes a mounting screw 2 of the rod-shaped main body 1.
And an abutment member which is inserted so as to be axially movable between the circumferential groove 9 and the folding groove 9. In this embodiment, the pad washer 10 is inserted and fitted with one end of the rod-shaped main body 1 facing the opening. Have been.

The specified length dimension of the rod-shaped main body 1 in the separator fitting metal fitting having the above-described structure is such that when the separator body A is added to the standard dimension separator A,
In this embodiment, the gap between the small-diameter end portion of the pad washer 10 and the circumferential groove 5 for restricting the screw advancement is set so as to conform to the interval between the formwork panels B, B of a standard that cannot be met. Dimension L
Is set every 5 mm from 5 to 55 mm with 25 mm as standard.

The metal fitting for adding a separator having the above structure is as follows.
For example, several types of length dimensions are prepared and used at a construction site by being connected to a separator A that is not sufficient in required formwork panels B and B dimensions. At the time of this connection, a metal fitting having a suitable length is selected, the screw hole 8 of the nut-like connecting member 3 of the metal fitting is inserted into the distal end thread portion 7 of the separator A, and the distal end surface 71 of the distal end thread portion 7 is attached to the nut. Connection
Until it is abutted and received on the back end face 81 formed at one end of the material 3
And the length is adjusted to the dimension between the formwork panels B and B.
An equal refill separator is obtained . The pad washer 10 and the fold peripheral groove 9 at one end of the refill separator are provided on the side of the refill separator and fulfill their functions.

As shown in FIG. 3, the refill separator thus prepared is provided with through-holes preliminarily formed in the form panels B, B disposed on both sides of the concrete placing portion C.
The mounting screw portion 2 of the separator fitting metal fitting and the other mounting screw portion 7 of the separator A are inserted into 11 and 11, respectively. In this case, the rod-shaped main body 12 of the separator A and the rod-shaped main body 1 of the metal fitting for connecting the separator are coaxially connected and can be handled in exactly the same manner as a normal separator alone. , B, there is no need to change the drilling positions of the through holes 11, 11 for inserting the screw portions.

The mounting screw portions 2 and 7 inserted into the through holes 11 and 11 of both of the form panels B and B are formed such that a portion protruding outside the form panels B and B is formed on a separator body 13 as a fixing bracket. Screws are tightened, whereby the pad washer 10 of the separator fitting metal fitting and the one pad washer 14 of the separator A are brought into close contact with the inner surfaces of the two formwork panels B, B, and the panel interval is maintained at the set interval. It is.

Form panel B,
After holding B, concrete is poured into the concrete placing portion C, and after curing, the form panels B and B are removed, and then the mounting screw portions 2 at both ends are cut off from the circumferential groove 9 for cutting. By doing so, a concrete structure is formed.

In the present invention, in addition to the pad washer as the abutment member 10 to be fitted into the rod-shaped main body 1, depending on the purpose of use,
A thin plate-shaped hexagon nut as shown in FIG. 4 can be obtained. Further, as shown in FIG.
Without providing 10, if necessary, a synthetic resin cone as the abutment member 10 that can be screwed to the mounting screw portion 2 of the rod-shaped main body 1 is attached and detachably provided. It can be of various forms. Further, the fixed connecting part 2 provided at one end of the rod-shaped main body 1 is replaced with a mounting separator, and a refill separator such as one having a large-diameter protrusion as shown in FIG. It is possible to use a structure corresponding to a fixing bracket for fixing the tip (separator body 13 and the like).

[0023]

As described above, the metal fitting for adding a separator according to the present invention has a rod-shaped main body having a specified length, and one end of the rod-shaped main body is provided with a fixed connecting portion to the fixing metal. On the other hand, a separation
A screw hole for screwing a tip screw portion of
Touch the end face of the threaded end of the separator to the back end face of the hole.
A nut-like connecting member to be received and received is fixed coaxially with the axis of the rod-shaped body, and a circumferential groove for folding is formed in the outer peripheral portion of the rod-shaped body between the fixed connecting portion and the base end of the nut-like connecting member. The nut-like connecting member provided at the other end of the rod- shaped main body is formed at one end of the threaded portion of the separator at one end of the nut-like connecting member.
The tip end face of the tip screw part of the separator
Screwing until RECEIVING stop, the working of only fastened, between formwork
Easy and reliable refill separator of equal length
It can be obtained.

[0024] Also, strong tensile strength for the separator and the replenishment fittings are connected on the same axis, it that the top, to change the position of the through hole of the separator insertion to both mold
Shit remains available, in which and also concrete wall thickness can be formed as prescribed. Furthermore, one end of the nut-like connecting member
The front end surface of the screw end of the separator is
Since the back end surface is formed that, by end thread portion of the separator is Nishishime completely until it abuts against the screw Anaoku end surface of the nut-like connecting member, and the rod-shaped body defining a length dimension as described above The sum of the dimensions of the separator and the separator will match the spacing of the formwork panels required for the construction of intermediate-sized concrete structures that cannot be met with the specified dimensions of the separator. The required number of pieces with the same length immediately after tightening the members
Replenishing separator are those that can be created accurately.

Moreover, the tip surface of the tip screw portion of the separator
Abuts the back end face formed at one end of the nut-like connection member
Both screws are completely screwed and tightened until they are received.
It is firmly fixed, and can be attached to form panels or during construction
Both screwed together due to vibration during transportation to the site
Without loosening and screwing in again after attaching to formwork panel
The trouble of checking the state and re-screwing is saved.
It is

Further, in the state of being connected to the separator in this manner, the separator and the metal fitting of the present invention are coaxially and integrally connected to each other to form a refilling separator, and the other end side circumferential groove is provided. The metal member provided on the other end of the separator can be used as it is, and the one provided on the metal fitting of the present invention exerts its function as the circumferential groove for folding at one end and the metal member. Therefore, it can be used without being completely different from a normal separator.

As described above, according to the present invention, during the construction of a concrete structure in which the spacing between the form panels cannot be matched with the separator having the specified size, the separator can be used coaxially with the separator having the specified size, so that the handleability is excellent. The required number of additional separators that can be easily and quickly adjusted to the dimensions between panels with high precision can be created. This has the excellent effect of being able to dramatically improve the accuracy and work efficiency as compared with the past. Was.

[Brief description of the drawings]

FIG. 1 is a perspective view

FIG. 2 is a sectional view showing a connection state with a separator.

FIG. 3 is a sectional view showing a state of attachment between form panels.

FIG. 4 is a sectional view showing another embodiment.

FIG. 5 is a sectional view showing still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod-shaped main body 2 Fixed connection part 3 Nut-like connection member 7 Separator tip screw part71 Tip face of threaded tip of separator  8 Screw holes81 Back end face  9 Peripheral groove for folding 10 Abutment member 13 Fixing bracket A Separator

Claims (2)

(57) [Claims] 1. A rod-shaped main body having a specified length is formed. A fixed connection portion to a fixing bracket is formed at one end of the rod-shaped main body, and the other end of the rod-shaped main body is formed at a second end of the rod-shaped main body. Of the separator
It has a screw hole for screwing the tip screw part and this screw hole
The distal end surface of the thread end of the above separator is abutted on the rear end surface.
Nut-like connecting member for hermetically is Yes is fixed to the axis coaxial with the rod-shaped body, further, the Orijo for circumferential groove on the outer periphery of the rod-shaped body between the proximal end of the fixed coupling portion and the nut-like connecting member A metal fitting for adding a separator, characterized by being formed. 2. An abutment member is inserted into a rod-shaped main body portion between a base end of the fixed connection portion and a base end of the nut-like connection member.
A metal fitting for adding a separator as described .