JPH0248561Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an embedded architectural insert that is embedded in a concrete wall surface such as a ceiling and used for suspending objects.

(Prior Art) Generally used architectural embedded inserts, as shown in FIGS. 3 and 4, have insertion holes 102, 102 formed in opposing predetermined outer circumferences of an insert body 101, The head nails 103 are inserted into the insertion holes 102 and the heads 1 of the nails 103 are inserted.
04 is locked to the upper surface 105 of the insert body 101, and the body portion 109 of the cylindrical female screw body 108 having a flange-shaped head 107 formed at one end is inserted into the through hole 106 formed in the center of the insert body 101. However, the structure was such that the head 104 of the headed nail 103 was pressed from above by the outer edge 110 of the flanged head 107 protruding from the insert body 101.

However, in the structure of the insert described above, the head 104 of the headed nail 103 and the head 10 of the female screw body 108
7 protrudes outward from the upper surface 105 of the insert main body 101, there is a problem in that the female threaded body 108 may be lost if one's foot gets caught in this part while working on the fixing member. Furthermore, when these inserts are attached to the insert fixing member one after another, the female threaded body 108 of the already attached insert may fall out of the insert body 101 due to the vibration caused by the hitting of the insert to be attached later.

Therefore, conventionally, as shown in FIGS. 5 and 6, 4 to 5
Insert the annular wall 111 with a height of mm into the main body 101'
The head 107 of the female screw body 108 is hidden within the annular wall 111, so that the female screw body does not fall out even if a foot is hooked on the head 107. .

(Problems to be Solved by the Invention) However, even with the above-mentioned conventional insert, there is a problem in that the head 107 of the previously installed female threaded body 108 lifts up from the annular wall 111 and comes out due to vibration when the insert is installed. Yes, and the above head 1
It was inevitable that I would trip over the 07 and lose the female screw body. In addition, in order to prevent the female threaded body 108 from lifting up or falling off, when the female threaded body 108 is strongly press-fitted into the through hole 106 of the insert body 101' to more closely fit it, the insert body 101' made of synthetic resin may There were also problems with cracking.

For this reason, for example, as disclosed in Japanese Utility Model Application Publication No. 56-25107, the outer periphery of the support body as the insert body and the outer periphery of the circular flange provided at the upper end of the hanging fitting as the female threaded body. A circular flange of the female threaded body that has nail insertion holes at multiple locations, and inserts the nail into the center through hole of the insert body by passing the nail through the nail insertion hole provided in the female thread body and into the nail insertion hole of the insert body. An insert has been devised in which a nail head is brought into contact with the upper surface of the insert to prevent the female threaded body from lifting up.

However, according to such an insert, when assembling the insert by inserting a female threaded body into the central through hole of the insert body and inserting a nail through a common nail insertion hole, the female thread is inserted into the nail insertion hole provided in the insert body. The nail cannot be inserted unless the female screw body is inserted into the center through hole of the insert body so that the nail insertion holes provided in the insert body are aligned on the same center line. Since the central through hole and the female threaded body are fitted relatively tightly, it is difficult to match the nail insertion holes of both, and the insertion and assembly work requires time and effort.

It is also possible to assemble the insert body by inserting nails into the nail insertion holes of the female threaded body in advance, fitting the female screw body into the insert body, and inserting those nails into the nail insertion holes of the insert body.
In this case as well, it is not only necessary to insert the nail into the nail insertion hole of the female screw body and insert the tip of the nail into the nail insertion hole of the insert body, but also to insert the nail into both nail insertion holes. The female threaded body must be press-fitted into the central through hole of the insert body in the inserted state, and at that time, the female threaded body slightly rotates in the plane direction and the nail portion that is inserted into the nail insertion hole of the female threaded body There are cases in which an acting force acts to deform the nail, making it difficult to drive the nail later.

Furthermore, in any case, the nail insertion hole provided in the upper end flange of the female threaded body must be formed with precision so that it matches the nail insertion hole provided in the insert body. There is a problem.

The present invention was devised in view of these conventional problems, and its purpose is to prevent the upper part of the female screw body from lifting up or falling off from the upper end of the insert body. To provide a built-in insert for construction, in which there is no fear that the insert body will crack as described above, and in which insertion of a female screw body and a nail into the insert body and assembly work can be easily performed. There is a particular thing.

(Means for Solving the Problems) Therefore, in order to effectively achieve the above object, the present invention has the following configuration. That is, a through hole 8 is drilled in the center, and nail insertion holes 10 parallel to the axis of the through hole 8 are formed at multiple locations around the same distance from the axis of the through hole 8 in the horizontal direction. Insert main body 3 formed with bulges 9, 9 extending therethrough
The upper end of the cylindrical body 5 to be fitted into the through hole 8 of the insert body 3 is in contact with the upper surface of the insert body 3, and the radius is smaller than the dimension between the center of the insert body 3 and the nail insertion hole 10. A female threaded body 2 has a circular flange 6 formed with a circular flange 6 and a female thread is carved on the inner circumferential surface of the body 5, and the insert body 3 is inserted from the outer periphery of the flange 6 of the female threaded body 2. The head 11 is inserted through the nail insertion holes 10, 10.
A headed nail 4 is fixed to the upper surface of the outer peripheral end of the flange portion 6 of the female threaded body 2 on the inner side of the lower surface thereof.

(Function) The body 5 of the female threaded body 2 is fitted into the through hole 8 of the insert main body 3, the flange 6 integrally formed at the upper end of the body 5 is brought into contact with the upper surface of the insert 3, and then Insert the headed nails 4, 4 into the nail insertion holes 10, 10 of the insert body 3, respectively, and press the upper surface of the outer peripheral end of the flange 6 of the female screw body 2 with the inner lower surface of the head 11 of each headed nail 4. Lock it like this.

In this case, since the nail insertion hole 10 is provided only in the insert body 3, there is no need to align the nail insertion holes with each other as in the above-mentioned prior art. 4, the inner side of the lower surface of the head 11 of the nail 4 comes into contact with the upper surface of the outer peripheral end of the flange 6 of the female threaded body 2, and as a result, the flange 6 of the female threaded body 2 is brought into contact with the head 11 of the headed nail 4. Head 1
Since the female screw body 2 is clamped and fixed between the lower surface of the insert body 1 and the upper surface of the insert body 3, it is possible to reliably prevent the female threaded body 2 from lifting up or falling off from the insert body 3 due to vibration or the like.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, 1 is an embedded architectural insert according to an embodiment of the present invention,
The insert 1 is composed of a female threaded body 2, an insert main body 3, and two headed nails 4, 4. To explain this architectural embedded insert 1 in detail, the female threaded body 2 has a flange 6 formed at one end of the cylindrical body 5 and extends inward from the other end of the body 5 along the axis. It is made of metal and has a female thread 7 on its circumferential surface.

The insert main body 3 has an upper part recessed so that the flange part 6 sinks, a through hole 8 into which the cylindrical body part 5 of the female threaded body 2 can be fitted in the center part, and a through hole 8 on the outer peripheral side part. It is a cylindrical molded product made of synthetic resin and has bulges 9, 9 protruding outward along the axis at two opposing locations. the bulge 9,
9 has nail insertion holes 10 and 1 into which the headed nail 4 can be inserted.
0 along the axis. Further, the formation positions of the nail insertion holes 10, 10 are such that the headed nail 4 is inserted into the nail insertion hole 10, and the head end 12 of the headed nail 4 is inserted into the collar of the female screw body 2 fitted into the insert main body 3. A position where the end of the portion 6 can be pressed from above, that is,
When the female threaded body 2 is inserted into the through hole 8, it is provided at a position near the outside of the outer peripheral edge of the collar portion 6 of the female threaded body 2. Marking portions 13 are formed at 90° intervals at four opposing locations on the seat piece at the bottom of the insert body, and are used to accurately position the insert 1 at a predetermined position during installation.

The headed nail 4 is a headed nail having one end formed into a pointed end 14 and the other end formed into the above-mentioned brim-shaped head 11, and the nail is a straight-headed nail. In the example, iron nails were used,
It may also be a nail made of reinforced plastic. When this headed nail 4 is inserted into the nail insertion hole 10 of the insert main body 3, the flanged head 11 of the nail 4 is locked to the upper part of the bulge 9, and the pointed end 14 is attached to the bulge on the opposite side. It protrudes outward from the lower surface of the protruding portion 9.

When using the architectural embedded insert 1 according to the present invention, the female threaded body 2 is first fitted into the through hole 8 of the insert body 3, and the flange 6 of the female threaded body 2 is inserted. is located within the recessed upper part of the insert body 3. At this time, the upper surface of the collar portion 6 is located below the upper surface of the bulge portion 9. Next, insert the headed nails 4, 4 into the nail insertion holes 10, 10 of the insert body 3, and
The head end 12 of the female threaded body 2 is inserted in such a manner that the outer peripheral end of the flange 6 is pressed from above. The architectural embedded insert 1 in which the female threaded body 2 and the headed nail 4 are assembled in the insert body 3 in this way is placed on the insert fixing member A, and the heads 11 of the double headed nails 4, 4 are placed on the insert fixing member A.
It is attached to the fixing member A by hitting it with a hammer or the like.

(Effect of the invention) As described above, according to the insert of the present invention, the radius of the flange 6 integrally formed on the upper end of the female threaded body 2 to be fitted into the central through hole 8 of the insert body 3 is aligned with the center of the insert body 3. It is formed to have a smaller diameter than the dimension between the nail insertion holes 10 provided at multiple locations around the insert body 3, and when a nail is inserted into the nail insertion hole 10, the inner side of the lower surface of the nail head 11 is inserted into the female screw body 2, 2. Since it is configured to be locked to the upper surface of the outer peripheral end of the flange 6, when the female threaded body 2 is fitted into the central through hole 8 of the insert body 3, the female threaded body 2
Since the opening upper ends of the nail insertion holes 10, 10 provided at multiple locations around the insert body 3 on the outer periphery of the upper end flange 6 are exposed, the nail insertion holes on the insert body side and the female thread can be connected as in the conventional prior art. After fitting the female screw body 2 into the through hole 8 of the insert body 3 without the need for matching the nail insertion hole on the upper end flange side of the body, the nail insertion hole provided in the insert body 3 can be inserted. The insert can be easily and reliably assembled by simply inserting the headed nail 4 into the insert 10.

In addition, by inserting the headed nail 4 into the nail insertion hole 10 provided around the insert body 3 and hitting it with a hammer or the like, the inner lower surface of the head of the headed nail 4 can be inserted into the flange 6 of the female screw body 2. The flange 6 of the female threaded body 2 can be locked to the upper surface of the outer peripheral end of the
is fixed in a sandwiched state between the head of the headed nail 4 and the upper surface of the insert body 3, thereby reliably preventing the female threaded body 2 from coming up or falling off from the insert body 3 due to vibration etc. Moreover, when the headed nail 4 is hammered, since the headed nail 4 is not connected to the female threaded body 2 in any way, an unreasonable force due to the hammering force is not applied to the female threaded body 2. This allows for smooth driving without having to do anything.

[Brief explanation of drawings]

Fig. 1 is a plan view of one embodiment of the present invention;
3 is a front view of the conventional example, FIG. 4 is a plan view of the conventional example shown in FIG. 3, and FIG. 5 is a front view of another conventional example. FIG. 6 is a plan view of FIG. 5. 1... Embedded insert for construction, 2... Female threaded body, 3... Insert body, 4... Headed nail, 5...
...Cylindrical body, 6...Flame, 8...Through hole, 10
... Nail insertion hole, 11 ... Head, 12 ... Head end.

Claims (1)

[Scope of utility model registration request] A through hole 8 is drilled in the center, and nail insertion holes 10 parallel to the axis of the through hole 8 are provided at multiple locations on the periphery equidistant horizontally from the axis of the through hole 8.
The insert main body 3 is formed by forming bulging portions 9, 9 extending through the insert main body 3, and the upper end of the cylindrical body 5 that is fitted into the through hole 8 of the insert main body 3 is brought into contact with the upper surface of the insert main body 3. A female threaded body 2 having a circular flange 6 whose radius is smaller than the dimension between the center of the insert main body 3 and the nail insertion hole 10, and a female thread carved on the inner peripheral surface of the body 5.
Then, the nail insertion holes 10, 10 of the insert main body 3 are inserted from the outer periphery of the flange 6 of the female threaded body 2, and the inner side of the lower surface of the head 11 is inserted into the flange 6 of the female threaded body 2.
An architectural embedded insert comprising a headed nail 4 which is fixed to the upper surface of the outer peripheral end of the construction.