JPS596410A - Method of temporarily fixing screw, nail, etc. to body to be clamped - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to objects to be fastened, such as plates, which are attached to certain members with screws or nails, in which the screws or nails are temporarily attached to the objects to be fastened. Concerning how to cent in a stopped state.

For example, in Franche plates and locks for recessed electrical outlets that are installed on walls, pillars, etc.

At the time of factory shipment, screws and nails are pre-set in a temporarily fixed state, and installation at the site is known to facilitate construction.

However, when temporarily fastening screws and nails of this kind, the general method for tightening plate members is to drill a pilot hole in the area where the plate member is to be tightened, and then insert a tampin screw into the hole shallowly. After letting the ingredients cool down.

It takes a lot of effort to screw the tapping screw into the lower flame.

This screw-in operation is time-consuming and troublesome, and the screws often fall off or tilt due to vibration during delivery or contact with other objects.

The present invention has focused on this fact and has made it possible to easily and reliably temporarily fasten screws and nails to objects to be fastened.

The details will be explained below based on the drawings.

The drawing shows an example of temporarily fixing screws to the flush plate of a recessed outlet; 1 is a flash plate made of metal such as aluminum, copper, iron, or plastic;
Reference numeral 2 denotes a screw, and the Franchise plate 1 has an outlet exposure hole 3 in the center thereof, and above and below the outlet exposure hole 3 there are screw/nail holding holes with a countersunk cross section for temporarily fixing the screw 2. 4 is open.

In FIG. 3, to temporarily fasten the screws 2, first removably bond the back plate 5 to the back surface of the flash plate 1 to close the bottom of the holding hole 4, and then fill the holding hole 4 with ultraviolet or electron beam curable resin 6. After filling, the tip 2a of the screw 2 is embedded in the resin 6 in an upright state with the head 2b protruding. Next, the resin 6 is irradiated with an ultraviolet or electron beam irradiation lamp 7.

The resin 6 is subjected to a curing reaction to form the thread holder 6a integrally with the flanche plate 1. With this, the screws 2 are temporarily fixed in the holding holes 4, and finally the back plate 5 is peeled off.

When using the flush plate 1 to which the screws 2 are temporarily attached, place the plate 1 against the wall or pillar so that the outlet embedded in the wall or pillar is exposed through the exposure hole 2, and tighten the screws 2. Turn the head 2b with a screwdriver and attach the tip 2a to the bracket 8 of the outlet.
It is installed by screwing it into the (see Figure 4)
. At this time, if the holding hole 4 is formed to have a dish-shaped cross section as shown in the illustrated example, strong tightening of the screw 2 is preferable because there is no fear that the screw holding body 6a will be pulled out of the holding hole 4 due to force.

As the ultraviolet ray or electron beam curable resin 6.

For example, if a urethane acrylate system is used, it will have a very high viscosity due to the hydrogen bonding of the urethane bonds, or Diream (manufactured by Dainichiseika Kogyo Co., Ltd.).

If you use a solvent-free type such as (trade name), it has a high viscosity, so it can hold the screw 2 in an upright position well even when it is uncured, and the resin 6 hardens in a few seconds, so it will harden easily. There is no possibility that the screw 2 will be tilted by the time the screw is turned. In addition, by increasing the molecular weight of polyether polyol or the molecular weight between crosslinks in urethane acrylate, it can be made softer.
Even when the screw 2 is tightened forcefully, it exhibits elasticity as a spring washer, and can prevent the flash plate from cracking if the screw 2 becomes loose.

In the above embodiment, the screw 2 is embedded after filling the holding hole 4 with ultraviolet or electron beam curable resin 6.
Alternatively, as shown in FIG. 5, the tips 2a of the screws 2 may be screwed into the back plate 5 and placed upright in the holding holes 4, and then the ultraviolet or electron beam curable resin 6 may be poured and filled. .

Note that in addition to the nail 2, nails or similar materials can also be used. In addition to the flash plate, the objects to be fastened include various objects that can be fastened with screws and nails.

As explained above, according to the method of the present invention.

Screws and nails are embedded when the ultraviolet or electron beam curable resin is in an uncured state, so it can be embedded in an extremely short time compared to the time required to screw in or drive in temporary fixing of screws and nails. In addition, since the ultraviolet or electron beam curable resin can be cured in a short time, the temporary fixing work time can be significantly shortened. In addition, ultraviolet or electron beam curable resin 6 can be increased to a pencil hardness of about 6 to 7H, so it can be used for solid screws and nails that will not move or fall off due to vibration or contact with other objects. It also means that a temporarily fixed state is obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a flash plate provided with screws and nails temporarily fixed by the method of the present invention. Figure 2 is an enlarged cross-sectional view taken along line nn in Figure 1, Figure 3 is an explanatory diagram of how to temporarily fasten screws and nails to the flash plate, and Figure 4 shows how to temporarily tighten screws and nails. FIG. 5 is a partial cross-sectional view of the flash plate in a tightened state, and is a view of another modified embodiment corresponding to FIG. 3. 1...Flash plate. 2...Screw. 4...Hole for holding screws and nails. 5...Back board. 6... Ultraviolet or electron beam curable resin 57...
・Irradiation lamp. Patent applicant Kyushu Hitachi Maxell Co., Ltd. Figure 1 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] (1) For holding holes for screws and nails provided in objects to be fastened. It is characterized in that it is filled with an ultraviolet ray or electron beam curable resin, and the screw/nail cheek is embedded in the resin with its head protruding, and then the resin is cured by ultraviolet ray or electron beam irradiation. A method for temporarily fastening screws and nails to objects to be fastened.