JPH0215702B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insert provided with a fixing member for fixing the insert embedded in a concrete wall of a concrete building to a formwork.

(Prior art) Conventionally, in order to fix an insert to a formwork,
This was done by inserting a nail into a nail hole provided in the flange at the bottom of the insert and driving the nail into the formwork. In that case, the strike is usually 3
Book nails were used, which made the nailing process troublesome. In addition, after burying the insert in a concrete wall, the remaining nails that protrude from the wall surface had to be cut off with nippers or bent with pliers, etc., and subsequent processing was time-consuming and work efficiency was extremely low. .

(Purpose) The present invention fixes the insert to the formwork using a fixing member configured separately from the insert, and the fixing member can be locked to the insert by a simple operation of inserting and moving the fixing member. To provide an insert equipped with a fixing member that can securely fix the insert to a formwork, and further allows the fixing member to be easily removed after the insert is buried in a concrete wall and the formwork is removed. The purpose is

(Structure) The insert equipped with the fixing member according to the first invention has ``a nail portion driven into the formwork to fix the insert to the formwork; and a head locked within the insert; a fixing member; a recess that is open at the bottom and into which the head of the fixing member is inserted; a recess communicating with the side of the recess into which the head of the fixing member is slid and accommodated; a recess above the recess; an insert having an abutting surface against which the upper surface of the head of the fixing member abuts, and a locking portion formed by protruding inwardly a seat on the lower side against which the lower surface of the head of the fixing member abuts; ” It is characterized by

Further, the insert equipped with the fixing member according to the second invention is characterized in that: ``a nail part driven into the formwork to fix the insert to the formwork; a head formed in a non-circular shape and locked in the insert; a fixing member having a part and; an opening in the bottom surface into which the head of the fixing member is inserted; and a recess that communicates with the opening and accommodates the head rotatably about the nail part of the fixing member. A locking member having a contact surface above the recess with which the upper surface of the head of the fixing member comes into contact, and a seat below the recess with which the lower surface of the head of the locking member comes into contact when the fixing member rotates. With a stop;
It is characterized by having an insert with and .

(Operation) In the case of the insert equipped with the fixing member according to the first invention, the head of the fixing member is inserted and slid from the recess provided in the insert into the recess communicating with the side of the recess. , and is designed to be stored in a recess. Inside the recess, the head of the fixing member is fixed by a locking part that has an abutting surface on the upper side that the upper surface of the head of the fixing member comes into contact with, and a seat that protrudes inwardly on the lower side, on which the lower surface of the head of the fixing member comes into contact. The upper and lower movements of the parts are restricted.

As a result, the fixing member is locked in the recess so that the fixing member does not enter inside the insert and is not removed from the insert, and the nail part of the fixing member is nailed or screwed into the formwork to secure the insert. It can be fixed to formwork.

In addition, in the case of the insert provided with the fixing member according to the second invention, the nail portion of the fixing member is inserted by inserting the head of the fixing member from the opening provided in the insert into the recess communicating with the opening. The head is rotatably housed in the recess around the shaft. Inside the recess, there is an abutment surface on the upper side that the upper surface of the head of the fixing member comes into contact with, and a locking part that has a seat on the lower side that the lower surface of the head of the fixing member comes into contact with when the fixing member rotates. , to restrict upward and downward movement of the head of the fixing member.

As a result, the fixing member is locked in the recess so that the fixing member does not enter inside the insert and is not removed from the insert, and the nail part of the fixing member is nailed or screwed into the formwork to secure the insert. It can be fixed to formwork.

In this way, the inserts equipped with the fixing member according to the first invention and the second invention can be easily inserted and moved by inserting and moving the head of the fixing member without invading the inside of the insert. The insert can be fixed to the formwork by locking the fixing member in the recess and nailing or screwing the nail part of the fixing member into the formwork so as to prevent the insert from coming off.

EMBODIMENT OF THE INVENTION Hereinafter, the insert based on this invention is demonstrated according to the Example shown in drawing.

Example 1 For figures 1 to 4, insert 1
are made of synthetic resin or metal. An opening 2 is provided at the bottom of the insert 1, from which the head 31 of the separate fixing member 20 extends inwardly.
A recess 3a into which is inserted is formed. The fixing member 20 has a head 21 formed in a hexagonal shape and a nail portion 22 formed in a screw shape. insert 1
The entire head 21 of the fixing member 20 fits into the recess 3a. A recess 4 is formed in the lateral direction in succession to the recess 3a. A seat 5 is formed in the recess 4 and is in contact with a lower surface 25 of the head 21 of the fixing member 20 . Therefore, the fixing member 20
When the head 21 of the fixing member 20 is inserted into the recess 3a and slid laterally, the head 21 of the fixing member 20 is held by the seat 5, which is a locking part, and is locked in a state where it cannot be removed from the insert 1. ing. Furthermore, a peripheral wall 12 and a contact surface 14 serving as a locking portion are formed in the recess 4 so as to be in close contact with the upper surface 23 and side surface 24 of the head 21 of the fixing member 20 . Therefore, seat 5
The head 21 of the fixing member 20 held on the contact surface 1
4 does not intrude into the inside of the insert 1. Further, the peripheral wall 12 allows the fixing member 20 to rotate as the insert 1 rotates. This is because the head 21 of the fixing member 20 is formed in a hexagonal shape, so that it is engaged with the peripheral wall 12, and the peripheral wall 12 and the head 21 of the fixing member 20 always move as one. This is because Thereby, by rotating the insert 1, the nail portion 22 of the fixing member 20 can be screwed into the formwork.

In this embodiment, the head 21 of the fixing member 20 is accommodated and locked in the recess 4 such that the axis of the fixing member 20 and the center line 7 of the insert 1 coincide. Therefore, it is easy to hold the insert 1 with your fingers, rotate it, and screw the nail portion 22 of the fixing member 20 into the formwork. In addition, in order to make it easier to rotate the insert 1 when holding it with your fingers, etc.,
The head 6 of the insert 1 may be formed into a rectangular shape such as a hexagon. Further, a square hole such as a hexagonal hole may be provided in the head 6 of the insert 1 (not shown), and a separate tool may be fitted into this hole and rotated.

In this embodiment, the head 21 of the fixing member 20 has a hexagonal shape, but as the insert 1 rotates, the fixing member 20 is rotated and the nail part 22 of the fixing member is screwed into the formwork to fix the insert 1 to the formwork. In this case, the head 21 of the fixing member 20 is not limited as long as it has a non-circular shape. When the insert 1 is fixed to the form by driving the nail part 22 of the fixing member 20 into the form, the head 21 of the fixing member 20 may be circular. Further, the nail portion 22 of the fixing member 20 is not limited to a screw shape, and may be formed straight when the nail portion 22 of the fixing member 20 is hammered into the mold to fix the insert 1 to the mold.

Next, from Fig. 5 to Fig. 8 and Fig. 9 to Fig. 1
The method of embedding the insert 1 will be specifically explained with reference to FIG.

First, the fixing member 20 is first attached to the insert 1, and then the nail part 22 of the fixing member 20 is driven into the formwork 30 to fix the insert 1 to the formwork 30, and then the method is to embed it in a concrete wall. Fifth
This will be explained from the figures to FIG.

First, the head 21 of the fixing member 20 is inserted into the recess 3a of the insert 1, as shown in FIG.

Next, as shown in FIG. 6, the head 21 of the fixing member 20 is housed in the recess 4 of the insert 1 by sliding the fixing member 20 in the direction of the arrow. At this time, the head 21 of the fixing member 20 is attached to the insert 1 by the locking portion formed by the seat 5 and the contact surface 14.
It is locked in the recess (4) so that it does not intrude inward and is prevented from coming off from the insert 1. In this example, the head 21 of the fixing member 20 does not penetrate into the insert 1 due to the abutment surface 14 .
Further, the seat 5 prevents the head 21 of the fixing member 20 from coming off from the insert 1. In this way, the fixing member 20, which was configured separately, is integrally attached to the insert 1.

Next, as shown in FIG. 7, the nail part 22 of the fixing member 20 is driven into the formwork 30 to fix the insert 1 to the formwork 30. In this example, the head 21 of the fixing member 20 is formed in a hexagonal shape, and the peripheral wall 12 is formed in close contact with the head 21. Therefore, hold the head 6 of the insert 1 with your fingers, rotate the insert 1, and insert the nail portion 22 of the fixing member 20 into the formwork 3.
0 to fix the insert 1 to the formwork 30. Alternatively, the head 6 of the insert 1 may be hit with a hammer or the like, and the nail portion 22 of the fixing member 20 may be attached to the formwork 30.
The insert 1 is fixed to the formwork 30 by tapping it inward. Note that the head 2 of the fixing member 20 is aligned so that the axis of the fixing member 20 and the center line 7 of the insert 1 are aligned.
1 is locked in the recess 4 of the insert 1,
The nail portion 22 of the fixing member 20 can be easily screwed or driven into the formwork 30. In this state, concrete can be poured and the insert 1 can be buried in the concrete wall.

After burying, the formwork 30 is removed and the fixing member 20 is attached to the insert 1 by holding the nail part 22 of the fixing member 20 protruding from the wall surface with pliers or fingers, as shown in FIG. It can be easily removed from the inside of the wall of the fixing member 20 by sliding it into the recess 3a and pulling it downward in the reverse order.

In addition, when fixing the insert 1 to the formwork 30,
When the formwork 30 is located deep inside a beam or the like, it is convenient to use a fixture 40 as shown in FIG. 13. The fitting 40 is provided at one end with a fitting portion 41 that fits the head 6 of the insert 1 in a non-rotating manner. In other words, insert 1
The inner shape of the fitting portion 41 is formed to match the hexagonal outer shape of the head 6. Also, the mounting tool 4
At the other end of the holder 40, there is provided a rotating part that allows the fixture 40 itself to be rotated by hand or an electric drill, or a striking part that can be hit with a hammer or the like. Thereby, the insert 1 can be easily fixed to the formwork 30 located at the back of a beam or the like.

Next, attach the nail part 22 of the fixing member 20 to the formwork 30 first.
After placing the insert 1 into the concrete wall, attach the insert 1 to the fixing member 20, fix the insert 1 to the formwork 30, and embed it in the concrete wall.
The explanation will be given from the figures to FIG. 12.

First, as shown in FIG. 9, the nail portion 22 of the fixing member 20 is driven into the formwork 30. in this case,
A gap t corresponding to the thickness of the seat 5 formed in the recess 4 of the insert 1 is required between the head 21 of the fixing member 20 and the formwork 30. Therefore, regarding the fixing member 20, there is a gap t equal to the thickness of the seat 5 above the nail portion 22.
It is preferable to provide a stepped portion 27 with a . With this configuration, the nail portion 22 of the fixing member 20 can be attached to the formwork 30.
When the nail part 2 of the fixing member 20 is driven into the nail part 2 of the fixing member 20, the stepped part 27 hits the formwork 30 and automatically leaves a gap t.
2 is conveniently driven into the formwork 30.

Next, as shown in FIG. 10, insert the head 21 of the fixing member 20 into the recess 3a of the insert 1, then slide the insert 1 in the direction of the arrow, and as shown in FIG. The insert 1 is fixed to the formwork 30 by locking the head 21 in the recess 4 of the insert 1 so as not to come off. In this state, concrete is poured and the insert 1 is buried in the concrete wall. After burying, remove the formwork 30, hold the nail part 22 of the fixing member 20 protruding from the wall surface, slide it from the recess 4 of the insert 1 to the recess 3a, and lower it. The fixing member 20 can be easily removed from the insert 1 by pulling it.

Example 2 Regarding FIGS. 14 to 18, in this example, an opening 3 into which the head 21 of the fixing member 20 is inserted is formed in the insertion hole 8 into which the hanging bolt of the insert 1 is inserted, and the hanging bolt is inserted into the opening 3. Insertion hole 8 for inserting
The opening 9 serves as an insertion port for the head 21 of the fixing member 20. The opening 3 has an inner shape that matches the outer shape of the head 21 of the fixing member 20, as shown in the cross-sectional view of FIG. A recess 4 is formed inside the insertion hole 8 so as to be continuous with the opening 3 . The recess 4 has a seat 10 that holds the head 21 of the fixing member 20 in a state where it does not come off from the insert 1 when the head 21 is rotated. In this embodiment, the head 21 of the fixing member 20 has a rectangular shape, and as shown in FIGS. 16 and 17, the head 21 of the fixing member 20 is inserted up to the recess 4, and By rotating in the direction of arrow A around , each corner 26 of the head 21 of the fixing member 20 moves as shown by the chain line in FIG. be done. As a result, as shown in FIG. 18, the head 21 of the fixing member 20 is locked to the insert 1 in a manner that prevents it from coming off. This is because the diagonal line connecting the corners 26 of the head 21 of the square-shaped fixing member 20 is longer than one side of the head 21 of the fixing member 20, so if the fixing member 20 is rotated, each corner 26 will be aligned with the opening 3. It will be located on the outside of each side forming the outer periphery, and therefore each corner 26
This is because it is held by the seat 10 and is prevented from coming off downward. Further, the side surface 24 of the head 21 of the fixing member 20 is prevented from rotating by the peripheral wall 13 of the recess 4. That is, the side surface 2 of the head 21 of the fixed member 20 rotated by a certain amount
A peripheral wall 13 is formed so as to abut against the fixing member 4, so that the head 21 of the fixing member 20 is prevented from rotating. In addition, when the head 21 of the fixing member 20 is locked in the recess 4 of the insert 1, the fixing member 2
A contact surface 15, which is a locking portion, is formed so as to come into contact with the upper surface 23 of the head 21 of the insert 1, so that the fixing member 20 does not enter inside the insert 1.
With such a structure, if the nail part 22 of the fixing member 20 is screw-shaped, by rotating the insert 1 in the direction of arrow B, the nail part 22 of the fixing member 20 can be screwed into the formwork and the insert can be removed. 1 can be fixed to the formwork.

Next, a method for embedding this insert 1 will be specifically explained.

From FIG. 19 to FIG. 22, the fixing member 2 is shown first.
0 is attached to the insert 1, the nail part 22 of the fixing member 20 is driven into the formwork 30, the insert 1 is fixed to the formwork 30, and the insert 1 is buried in a concrete wall.

First, as shown in FIG. 19, the head 21 of the fixing member 20 is inserted into the recess 4 extending from the opening 3 of the insert 1 inward. Next, the fixing member 20 is rotated around the axis as shown in FIG. The head 21 of the fixing member 20 is locked so that it can be pulled out from the insert 1 and placed in the upward state. In this example, the upper surface 23 of the head 21 of the fixing member 20 comes into close contact with the abutting surface 15, so that the head 21 of the fixing member 20 does not enter the inside of the insert 1. In addition, the seat 10 also allows the head 21 of the fixing member 20 to
is in a state where it is not removed from the insert 1.

Next, as shown in FIG. 21, the nail portion 22 of the fixing member 20 is driven into the formwork 30 to fix the insert 1 to the formwork 30. Drive into head 6 of insert 1
Hold the insert 1 with your fingers and rotate the insert 1 and screw the nail part 22 of the fixing member 20 into the formwork 30, or hit the head 6 of the insert 1 with a hammer or the like.
This is done by driving the nail portion 22 of the fixing member 20 into the formwork 30.

In this state, concrete can be poured and the insert 1 can be buried in the concrete wall. After burying, the frame 30 is removed, and as shown in FIG. The fixing member 20 can be easily removed from inside the wall by pulling downward at the point where the outer shape of the portion 21 overlaps.

From FIG. 23 to FIG. 26, the nail part 22 of the fixing member 20 is first driven into the formwork 30, and then the insert 1 with the insert 1 attached to the fixing member 20 is fixed to the formwork 30. , which shows how to bury it in a concrete wall.

First, as shown in FIG. 23, the nail portion 22 of the fixing member 20 is driven into the formwork 30. In this case, a gap t corresponding to the thickness of the seat 10 in the recess 4 of the insert 1 is required between the head 21 of the fixing member 20 and the formwork 30. Therefore, for the fixing member 20, it is preferable to provide a stepped portion 27 above the nail portion 22 with a gap t equal to the thickness of the seat 10. With this configuration, when the nail portion 22 of the fixing member 20 is driven into the formwork 30, the stepped portion 27 automatically hits the formwork 30, leaving a gap t, and the nail portion 22 of the fixing member 20 is driven into the formwork 30. This is convenient because it is driven into the formwork 30.

Next, as shown in FIG. 24, the head 21 of the fixing member 20 is inserted into the opening 3 of the insert 1, and then, by rotating the insert 1, the second
As shown in FIG. 5, the head 21 of the fixing member 20 is held in the seat 10 of the recess 4 of the insert 1, and the head 21 of the fixing member 20 is locked to prevent it from coming off from the insert 1.
is fixed to the formwork 30. Then, the insert 1 can be buried in the concrete wall by pouring concrete. After burying, remove the formwork 30,
As shown in FIG. 26, the fixing member 20 can be easily removed by holding the nail portion 22 of the fixing member 20, rotating it around the axis of the fixing member 20, releasing the lock, and pulling it out downward.

(effect) According to the present invention, the following effects are achieved.

(1) By moving the head of the fixing member from the recess or opening of the insert to the recess, the fixing member can be locked to the insert with a simple operation. In addition, the fixing member can be easily removed from the insert, so the fixing member can be easily removed after the formwork has been removed, making post-processing easier and burying the insert more efficiently. be able to.

(2) Since the head of the fixing member is locked in a state where it cannot be removed from the insert by the locking portion provided on the insert, the insert can be reliably fixed to the formwork.

(3) The insert can be securely fixed to the formwork with a single fixing member.

(4) In particular, if the nail part of the fixing member has a screw shape and is screwed into the formwork, the nail part will catch on the formwork more strongly than a straight nail part, and will not come out even if an external force is applied. Hateful. Therefore, the insert can be more firmly fixed to the formwork.

[Brief explanation of drawings]

1 to 4 show an embodiment of the insert according to the first invention, FIG. 1 is a cross-sectional view of the state before the fixing member is attached, and FIG. 2 is a -
3 is a sectional view of the state after the fixing member is attached, FIG. 4 is a cross-sectional view of FIG. 9 to 12 are cross-sectional views showing each step of an example of the method for embedding an insert according to the first invention, and FIG.
14 to 18 show an embodiment of the insert according to the second invention, FIG. 14 is a sectional view of the fixing member before it is attached, and FIG. 15 is a side view showing the fixture. is a cross-sectional view of Fig. 14, 1st
Figure 6 is a cross-sectional view of the state in which the fixing member is attached, Figure 17
The figure is a - sectional view of Fig. 18, Fig. 18 is a sectional view of the state after the fixing member is installed, and Fig.
2 to 2 are cross-sectional views showing each step of an example of the method for burying an insert according to the second invention, and FIGS. 23 to 26 are each step of another example of the method for burying an insert according to the second invention. FIG. In the figure, 1 is an insert, 3a is a recess, 3 is an opening, 4 is a recess, 20 is a fixing member, 21 is a head of the fixing member, 22 is a nail portion of the fixing member, and 30 is a formwork.

Claims (1)

[Scope of Claims] 1. A fixing member having a nail portion driven into the formwork to fix the insert to the formwork; and a head portion locked within the insert; A recess into which the head is inserted; a recess communicating with the side of the recess into which the head of the fixing member is slid and accommodated; An insert comprising a fixing member, comprising: a locking portion having a contact surface and a seat protruding inwardly from the lower side with which the lower surface of the head of the fixing member abuts; . 2. An insert equipped with a fixing member according to claim 1, wherein the head of the fixing member is formed in a non-circular shape, and the recess has a peripheral wall that prevents rotation of the head of the fixing member. 3. An insert equipped with a fixing member according to claim 1 or 2, wherein the recess is provided on the center line of the insert. 4. A fixing member having a nail portion driven into the formwork to fix the insert to the formwork; and a head formed in a non-circular shape and locked within the insert; an opening into which the head is inserted; a recess that communicates with the opening and accommodates the head rotatably around the nail portion of the fixing member; the upper surface of the head of the fixing member is placed above the recess; a locking portion having an abutment surface that comes into contact with the fixing member, and a seat provided below with which the lower surface of the head of the fixing member comes into contact as the fixing member rotates;
An insert comprising: and a fixing member comprising: 5. An insert equipped with a fixing member according to claim 4, wherein the recess has a peripheral wall that prevents rotation of the head of the fixing member. 6. An insert equipped with a fixing member according to claim 4 or 5, wherein the recess is provided on the center line of the insert.