JPH0247162Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a structure for attaching a strike box having a latch hole to a door frame.

[Background technology]

Conventionally, the latch hole 8 was formed in the door frame 1 as shown in FIG. 3 in the diagram
is a box-shaped strike box with an opening on the front side, and is arranged in the door frame 1 within the opening 2 of the door frame 1, and a front plate 9 having a latch hole 8 is arranged from the front side of the door frame 1. Attach the screw 12 passed through the screw hole of the plate 9 to the mounting piece 1 of the strike box 3.
In this way, the front plate 9 and strike box 3 are attached to the door frame 1, and a latch hole 8 is provided in the door frame 1. However, conventionally, the door frame 1
Since the latch hole 8 is formed by attaching the front plate 9 to the side of the door, the latch hole 8 will protrude to the side of the door by the thickness of the front plate 9, which makes it difficult to close the door. In some cases, there was a problem that the door hit the front plate 9, causing trouble.

[Purpose of invention]

The present invention has been developed in view of the above points, and provides a structure for mounting a strike box on a door frame, which prevents the front plate from protruding from the door frame and allows the door to be closed without hitting the front plate. The purpose is to provide the following.

[Disclosure of invention]

That is, the present invention has a mounting structure in which a strike box 3 having a front plate 9 with a latch hole 8 drilled therein is attached to an opening 2 formed on the door side side of a rectangular cylindrical door frame 1. The strike box 3 is box-shaped with an open front, and the end of the plate 4 provided at the edge of the front opening is in contact with the periphery of the opening 2 of the door frame 1 on the inner side. A spacer 18 is arranged, and is fixed within the door frame 1 with an adjustment screw 7 screwed into the rear side of the door frame 1 through the adjustment hole 5 at the bottom of the washer 6 and the strike box 3. The front plate 9 whose thickness is less than the plate thickness of the strike box 3 is the plate 4 of the strike box 3.
The adjustment hole 5 has an inner diameter larger than the shaft diameter of the adjustment screw 7 and smaller than the diameter of the washer 6, and the adjustment hole 5 has an inner diameter larger than the shaft diameter of the adjustment screw 7 and smaller than the diameter of the washer 6. The above object has been achieved by a structure for mounting a strike box to a door frame in which the insertion position can be adjusted within the range of the difference in diameter.

The present invention will be explained in detail below with reference to Examples. As shown in FIG. 2, the strike box 3 is formed into a box shape with an open front side, and a plate 4 is attached to the periphery of the opening.
extends outward. Screw holes 16, 16 are bored in the upper and lower ends of the plate 4, and an adjustment hole 5 is bored in the bottom surface of the strike box 3. In the figure, reference numeral 9 denotes a front plate, and the front plate 9 has a latch hole and a screw hole 17 drilled therein. 6 is a washer with an outer diameter larger than the adjustment hole 5, and 18 is the adjustment hole 5.
It is a cylindrical spacer with a larger outer diameter.

When attaching the strike box 3 to the door frame 1, an opening 2 is formed by cutting out the side surface of the door frame 1, which is made of aluminum, steel, wood, etc., into a rectangular tube shape. As shown in FIG. 3, a strike box 3 is arranged in the door frame 1 inside the opening 2 so that the opening faces the door, and the strike box 3 is inserted into the adjustment hole 5 through the washer 6. Insert the adjustment screw 7 from the side, insert the adjustment screw 7 into the cylindrical spacer 18 on the back side of the strike box 3, and then insert the adjustment screw 7 into the cylindrical spacer 18 on the back side of the strike box 3, and then tap into the screw hole drilled on the back side of the door frame 1. By screwing the strike box 3 into the door frame 19, the adjustment screw 7 is used to press the bottom surface of the strike box 3 and attach it to the door frame 1. Thereafter, the screw 20 is passed through the screw hole 17 of the front plate 9 in which the latch hole 8 is drilled, and the screw 20 is screwed into the screw hole 16 of the strike box 3.
is attached to the front of the opening of the strike box 3. Here, the adjustment hole 5 is formed larger than the shaft diameter of the adjustment screw 7, so that the strike box 3 can be moved up and down and left and right, and the mounting position of the latch hole 8 can be adjusted. It is. In addition, in this case, the plate 4 is extended sufficiently long, so that even if the strike box 3 is moved, there is no gap between the plate 4 and the periphery of the opening 2 of the door frame 1, and the periphery of the plate 4 is The end is always located on the back side of the door frame 1. In the figure, 21 is a box that covers the tip of the adjustment screw 7 that protrudes from the back side of the door frame 1, and is designed to prevent mortar etc. from sticking to the adjustment screw 7 when the door frame 1 is attached to a wall. .

[Effect of idea]

As mentioned above, the present invention has a box-like shape with an open front, and the edge of the plate provided at the edge of the front opening touches the inner surface of the periphery of the opening of the door frame, which is located between the strike box and the rear side of the door frame. The strike box is fixed within the door frame using an adjustment screw that is screwed into the rear side of the door frame through the adjusting hole at the bottom of the strike box and the washer, and the strike box is fixed on the rear side of the door frame. year,
The front plate, whose thickness is less than the thickness of the door frame, is fixed to the front surface of the plate of the strike box and placed within the opening of the door frame, so that the front plate protrudes from the door frame toward the door. This eliminates the problem of the door hitting the front plate and preventing it from closing as in the past, and the adjustment screw that is formed at the bottom of the strike box and screwed into the back side of the door frame. The inner diameter of the adjustment hole into which the adjustment screw is inserted is larger than the shaft diameter of the adjustment screw and smaller than the diameter of the washer into which the adjustment screw is inserted, and the screw insertion position is within the range of the above diameter difference. Because it is adjustable, the strike box can be moved up and down, left and right by loosening the screw, and the mounting position of the latch hole can be adjusted with a single screwdriver.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of a conventional example, FIG. 2 is an exploded perspective view of an embodiment of the present invention, and FIG. 3 is a sectional view of a main part of the same. 1 is a door frame, 2 is an opening, 3 is a strike box, 4 is a plate, 5 is an adjustment hole, 6 is a washer, 7 is an adjustment screw, 8 is a latch hole, and 9 is a front plate 18 is a spacer.

Claims (1)

[Scope of utility model registration request] A mounting structure in which a strike box having a front plate with a latch hole drilled therein is attached to an opening formed in the door-side side surface of a rectangular cylindrical door frame, and the strike box is box-shaped with an open front. The strike box, where the edge of the plate provided on the front opening edge touches the inner surface of the opening periphery of the door frame, has a spacer placed between it and the back side of the door frame, as well as adjustment of the washer and the bottom of the strike box. It is fixed in the door frame with an adjustment screw that screws into the back side of the door frame through a hole, and the front plate, which has a thickness less than the thickness of the door frame, is fixed to the front of the above plate of the strike box. It is arranged in the opening of the door frame, and the adjustment hole has an inner diameter larger than the shaft diameter of the adjustment screw and smaller than the diameter of the washer, so that the screw insertion position can be adjusted within the range of the difference in diameter. A structure for attaching the strike box to the door frame, which is said to be flexible.