JPH0228319Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to an embedded metal fitting for equipment installation, which allows equipment, piping, etc. to be easily installed in a concrete frame.

[Conventional technology and problems]

When installing anchors to install equipment, piping, etc., if the position is already determined from the beginning, fix the anchor bolt position accurately.
It is possible to use a method of pouring concrete, but it cannot be corrected later, and if the anchor position is undetermined or uncertain, or if there is a change, a retrofitting method will be required.

However, if there are many anchor positions,
There are various construction methods, but the problem is that they require a lot of effort and cost.

This idea was devised in view of the above-mentioned problems, and involves embedding an anchor with a horizontal installation surface within the concrete structure.
It is an object of the present invention to provide an embedded metal fitting for equipment installation that can be easily installed even when installing equipment whose installation position is uncertain.

[Means for solving problems]

The embedded hardware for equipment installation of this invention includes a flat fixing device body 1 having a large number of bolt through holes 2 formed at predetermined positions, and passing through the bolt through holes 2 of this fixing device body 1 on the concrete frame 6 side. It consists of a temporary fixing bolt 3 which is screwed into a long nut 4 provided in the hole, and an anchor member 5 which is screwed into the long nut 4. This embedded hardware is located on the surface of the fixing device main body 1, that is, the temporary fixing bolt 3.
It is embedded in the concrete frame 6 so that the head side becomes the concrete pouring surface.When installing the equipment 8, remove the temporary bolts 3 that will get in the way, and A device 8 is fixed with a fixing bolt 7 using a long nut 4.

Usually, a steel plate or the like is used as the fixing device main body 1.
The material, plate thickness, etc. are not particularly limited as long as the strength necessary for positioning accuracy and flatness accuracy of the long nut 4 can be obtained.

As the long nut 4, commercially available long nuts etc. are suitable.
Further, the anchor member 5 can be easily fixed by directly screwing it onto the long nut 4 by using, for example, a stud bolt with a head.
However, the present invention is not limited to this, and it is also possible to use an anchor member 5 provided with a hook at the lower end, or to use one in which the long nut 4 and the anchor member 5 are integrally formed in advance.

〔Example〕

Next, the illustrated embodiment will be described.

Figures 2 to 4 show the embedded hardware of this invention embedded in a concrete frame 6 (in this case, a floor slab). A temporary fixing bolt 3 and an end portion of an anchor member 5 are screwed onto the top and bottom of a long nut 4 on the frame body 6 side, respectively.

The construction procedure is as follows.

Required bolt through holes 2 are bored in the fixing device main body 1.

Long nuts 4 are attached to the surface of all the bolt through holes 2 on the concrete frame 6 side using temporary bolts 3 passing through the bolt through holes 2.

An anchor member 5 consisting of a stud bolt with a head is screwed into the lower side of the long nut 4 and fixed.

The fixing device main body 1 is installed at a predetermined position, and concrete is poured (see FIG. 2).

To install the device 8, remove the temporary fixing bolts 3 at necessary and obstructive locations, and install the device 8 using the fixing bolts 7 (see FIG. 1). Further, the remaining temporary bolts 3 are left as they are as fixing bolts for the fixing device main body 1.
Note that, depending on the case, it is also possible to use the temporary fixing bolt 3 as it is as a fixing bolt 7 for equipment or the like.

[Effect of the invention] Equipment, piping, etc. can be installed at any position in the bolt through hole of the fixing device body, so it is possible to flexibly respond when the installation position of equipment, etc. is undetermined or undefined, or changes. .

Since the anchor body is flat, it is easy to hold the anchor horizontally and bury the anchor member in the concrete structure.The anchor body is fixed with a large number of anchor members and temporary bolts, so it is easy to bury the anchor member in the concrete. The attachment of the fixing device body is reliable and strong.

Although it is a pre-installed anchor method, it can be installed using only bolts and no welding is required. Therefore, the construction is easy and the cost is low.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view showing the usage state of an embodiment of this invention, Fig. 2 is a longitudinal cross-sectional view before equipment installation, Fig. 3 is a plan view, and Fig. 4 is a partially enlarged cross-sectional view of Fig. 2. be. 1... Fixture main body, 2... Bolt through hole, 3...
...Temporary bolt, 4...Long nut, 5...Anchor member, 6...Concrete frame, 7...Fixing bolt, 8...Equipment.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A flat fixing device body with a large number of bolt through holes formed at predetermined positions, and a bolt through hole that passes through the bolt through holes of the fixing device body and is provided on the concrete frame side. 1. An embedded metal fitting for installing equipment, comprising a temporary bolt screwed into a corresponding long nut, and an anchor member screwed into the long nut. (2) The embedded hardware for equipment installation according to claim 1, wherein the anchor member is a stud bolt with a head that is screwed into a long nut.