JPH06108548A - Ceiling insert for deck - Google Patents

Abstract

PURPOSE:To secure a firm engaging state by constituting a latching body turned to the heading direction on an outer circumference in the vicinity of an opening end. CONSTITUTION:A decking ceiling insert 1 is composed of a small diametral cylinder part 11 and a large diametral part 12 extending upward in a taper form, and whose upper outer diameter has come to be constant, and a latching body 11a turned to the direction of this large diametral part 12 is projectingly formed on an outer circumference in the vicinity of an opening end of the cylinder part 11. Next, a spacer 2 is made up of plural pieces of slits 21a installed beneath, another cylinder part 21 with an inner diameter being slightly larger than the outer diameter of the cylinder part 11 and a flange part 22. In succession, if the insert 1 is driven into the spacer 2 inset in a deck hole after turning the side, where the slits 21a are formed, upside down, the latching body 11a appears from the downside of the spacer 2 as the slits opening, so it engages the opening end beneath the spacer 2. With this constitution, the ceiling insert is able to get a firm engaging state by merely being driven into the spacer 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deck ceiling insert for attaching a suspension bolt for suspending a frame material of a building ceiling to a ceiling structure.

[0002]

2. Description of the Related Art As shown in FIG. 2, a spacer 4 is inserted in a hole of a deck 5 made of an iron corrugated sheet, a metal deck ceiling insert 3 is inserted therein, and concrete 6 is driven into the ceiling. Although a structure is formed, as the ceiling insert 3 for a deck, conventionally, one having a male screw 3a formed on the outer periphery near the opening end into which the hanging bolt 7 is inserted is known. The ceiling insert 3 includes a spacer 4 having a tip portion 4a protruding inwardly in a hook shape. Alternatively, the applicant of the present invention has also proposed a spacer having a female screw formed on one end of the inner circumference, which is screwed into the male screw of the ceiling insert (Japanese Patent Application No. 4-2).
4502).

[0003]

The above-mentioned ceiling inserts for decks are provided in order to secure the engagement with the spacers.
It is necessary to adopt a special structure corresponding to the ceiling insert on the spacer side as well, and finally it is necessary to lightly screw in after inserting the ceiling insert.

An object of the present invention is to provide a ceiling insert for a deck which can use a conventional spacer having a simple shape which does not adopt a special structure as it is and can obtain a firm engagement state by simply driving. There is.

[0005]

In order to achieve the above object, the deck ceiling insert of the present invention has a hook body facing the head portion on the outer periphery near the opening end.

[0006]

[Operation] In the ceiling insert for a deck constructed as described above, when it is driven into the spacer put in the hole of the deck, the hooking body appears from below the spacer and engages with at least the opening end below the spacer. To meet.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a deck ceiling insert of the present invention will be described with reference to FIG.

The deck insert 1 for a deck comprises a small-diameter cylindrical portion 11 and a large-diameter portion 12 extending upward in a tapered shape and having a constant outer diameter at the upper portion. On the outer periphery of the small-diameter cylindrical portion 11 near the open end, a hooking body 11a that projects toward the large-diameter portion 12 is formed to project.
Above 2 is a head having an appropriate outer shape such as a circular shape or a nut shape.

The hooking body 11a shown in FIG. 1 has the same size and shape as the protrusions of a wholesaler, but if it is a strip-shaped one, a ring-shaped one or the like, if it has a catching resistance. It can be anything. And the hanging body 11
The smaller the axial distance of a, the better, and it is best that the tip position changes smoothly in sequence.

The inner space of the large-diameter portion 12 of the ceiling insert 1 accommodates a split nut or a sphere that bites into the hanging bolt inserted when the tapered inner wall is moved to the opening side (Japanese Patent Application No. 4). -24502, Japanese Patent Application No. 4-703
(See No. 30).

The spacer 2 made of plastic used in this ceiling insert 1 has a plurality of slits 21 at the bottom.
a is formed and has a tubular portion 21 having an inner diameter slightly larger than the outer diameter of the deck insert small diameter tubular portion 11 and a collar portion 22 formed in the middle of the outer periphery thereof, which has been conventionally used. It has the same shape.

In the deck ceiling insert 1 thus constructed, when the side where the slit 21a is formed is driven down into the spacer 2 which is put in the hole of the deck, the slit 21a is opened. Hook 11
a appears from below the spacer 2. Each hook 11a
Has a small gap and faces upward, so that it is caught at least at the open end below the spacer 2 when the insertion is completed, and the ceiling insert 1 no longer moves up and down under normal external force.

[0013]

Since the present invention is configured as described above, it has the following effects.

That is, by simply driving into the spacer,
It can be firmly fixed without screwing. Further, the conventional spacer having a simple structure can be used as it is.

[Brief description of drawings]

FIG. 1 is a perspective view of a deck ceiling insert of the present invention and a spacer used therein.

FIG. 2 is a cross-sectional view of a conventional ceiling structure in which a deck ceiling insert and a spacer are embedded.

[Explanation of symbols]

 1 Ceiling insert for deck 11 Small diameter cylinder 11a Hook 2 Spacer

Claims (1)

[Claims] 1. A deck ceiling insert having a hook body facing the head portion on the outer periphery near the opening end.