JPS6015881Y2 - Installation structure of latch catch on door frame - Google Patents

Description

[Detailed description of the invention] The present invention relates to a structure for attaching a latch seat to a door frame.A locking recess 2 is recessed in the inner surface of the door frame 1, and a latch storage box 3 with an opening on the negative side has an opening. The latch storage box 3 is housed and fixed in the lock recess 2 so as to face outward, and catch fixing plates 4 are provided above and below the opening of the latch storage box 3 so as to project upwardly and downwardly. A catch mounting screw 10 having a diameter smaller than the width of the mounting hole 5 is located on the surface side of the latch storage box 3 and is connected to the opening of the latch storage box 3. A latch catch 9 having a communicating sliding latch receiving hole 8 is inserted into the upper and lower screw holes 16 and the mounting hole 5 of the catch fixing plate 4, and is stored in the lock recess 2 located on the back side of the catch fixing plate 4. A screw 1 is attached to a rectangular rotation stopper nut 11 having a size such that rotation is restricted by hitting the inner surface of the locking recess 2.
This relates to a structure for attaching a latch seat to a door frame, which is formed by screwing the tip of a latch seat to a door frame.

Conventionally, in the case of doors as shown in FIGS. 1 to 3 used for entrances, etc., a latch seat 9 is provided on the inner surface of the wooden door frame 1, and a latch 7 is attached to the side surface of the door panel 6. , the door panel 6 can be locked to the door frame 1.

At this time, in order to fix the latch seat 9 to the door frame 1, conventionally the latch seat 9 was fixed directly to the inner surface of the door frame 1 using wood screws 13 or the like.

However, if the door panel 6 is opened and closed for a long period of time,
If the door panel 6 sags a little or if the door is not properly installed, the door frame 1 may become twisted, causing the latch seat 9 fixed to the door frame 1 and the latch 7 of the door panel 6 to become distorted.
There was a problem in that the latch 7 of the door panel 6 could not be completely locked to the latch seat 9 of the door frame 1 due to the latch 7 being misaligned.

The present invention was developed in view of the above points, and even if the fitting position of the latch receiver fixed to the door frame and the latch attached to the door panel is misaligned, the latch receiver To provide a structure for attaching a latch catch to a door frame, in which a latch of a door panel can be completely locked to a latch catch of a door frame by adjusting the fixing position of the seat, and the latch catch can be easily installed. The purpose is to

The present invention will be explained in detail below using examples.

As shown in FIG. 4, a locking recess 2 in the shape of a square prism is provided on the inner surface of the door frame 1.

Reference numeral 3 denotes a latch storage box that is housed in the lock recess 2, and seat fixing plates 4 are connected to the upper and lower ends of the latch storage box 3, respectively.

A mounting hole 5 which is elongated in the vertical direction is a cutout in the seat fixing plate 4.

A latch receiving hole 8 is bored in the center of the latch receiving seat 9, into which a latch (not shown) of the door panel is fitted when the door panel (not shown) is closed. Screw holes 16 are bored at the top and bottom of the seat fixing plate 4 so as to face the mounting holes 5 of the seat fixing plate 4.

A catch mounting screw 10.10 having a smaller diameter than the width of the mounting hole 5 is inserted into the screw hole 16 of the latch seat 9, and the tip of the screw 10 is inserted into the mounting hole 5 and received. A rotation stopper nut 11 is screwed onto a screw 10 on the back side of the seat fixing plate 4.

A caulking part 12 is formed at the tip of the screw 10 to prevent the rotation stopper nut 11 from falling out.

The rotation stopper nut 11 is formed into a rectangular plate shape, and is sized so that even if it tries to rotate with the rotation of the screw 10, it will hit the inner surface of the locking recess 2 and will not rotate.

Therefore, in order to attach the latch catch 9 to the inner surface of the door frame 1, as shown in FIG. Then, the fixing screw 15 inserted from the latch receiving hole 8 is inserted into the screw hole 14 drilled in the back plate of the latch storage box 3 and screwed into the back surface of the locking recess 2. .

Next, the latch seat 9 is fixed to the inner surface of the door frame 1 by tightening the screw 10 to the rotation stopper nut 11. When tightening the screw 10, the rotation stopper nut 11 is locked to the inner surface of the locking recess 2. It never rotates.

To slightly move the mounting position of the latch seat 9 vertically and horizontally, loosen the screw 10 and adjust the movement of the latch seat 9 within the movement range of the screw 10 in the mounting hole 5 of the seat fixing plate 4. It is possible.

As described above, the present invention has a locking recess formed on the inner surface of the door frame, and a latch storage box with an opening on the negative side is stored and fixed in the locking recess with the opening facing outside. A catch fixing plate is provided upwardly and downwardly protruding above and below the opening of the catch fixing plate, and a long mounting hole is formed vertically in each catch fixing plate, and the catch has a diameter smaller than the width of the mounting hole. Insert the mounting screws into the upper and lower screw holes of the latch catch, which has a latch receiving hole that is located on the surface side of the latch storage box and communicates with the opening of the latch storage box, and into the mounting hole of the catch fixing plate. The tip of the screw is screwed into a rectangular rotation stopper nut that is located on the back side of the fixed plate and is housed in the locking recess and is sized so that rotation is restricted by hitting the inner surface of the locking recess. The mounting screws can be adjusted by moving up and down and left and right of the mounting hole formed on the seat fixing plate, so if the door panel is used for a long time or the door frame is poorly constructed, the latch of the door panel will not fit into the seat of the door frame. Even if the lock does not occur, the latch of the door panel can be locked to the catch of the door frame without any problem by adjusting the catch by moving it vertically and horizontally.

Moreover, since the rotation stopper nut is rectangular and has a size that restricts rotation by hitting the inner surface of the locking recess, when tightening the screw to the rotation stopper nut to secure the latch seat, the rotation stopper nut is attached together with the screw. This has the advantage that the latch seat does not need to rotate, making the work of installing the latch seat easier.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the conventional door frame, Fig. 2 is a perspective view of the same door panel as above, Fig. 3 is a top view of the same door panel as above with the door frame closed, and Fig. 4 is a perspective view of the door frame of the present invention. A partially cutaway partially exploded perspective view of the embodiment, FIGS. 5a and 5c are a front view and a side view showing a state in which the latch storage box having the same latch catch and catch fixing plate and the rotation stopper nut are integrated. Figures 6a and 6b are front and side views of the latch storage box with the catch fixing plate, and Figures 7a and 7b are front and side views of the rotation stopper nut, respectively. 1 is a door frame, 2 is a lock recess, 4 is a seat fixing plate, 5 is a mounting hole, 8 is a latch hole, 9 is a latch seat, 10 is a screw, 11
is a rotation stopper nut.

Claims (1)

[Scope of utility model registration request] A locking recess is formed on the inner surface of the door frame, and a latch storage box with the - side open is stored and fixed in the locking recess with the opening facing outside. A catch fixing plate is provided protruding downward, and each catch fixing plate has a vertically long mounting hole, and a catch fixing screw with a diameter smaller than the width of this mounting hole is inserted into the latch. It is inserted into the upper and lower screw holes of the latch catch, which has a latch receiving hole located on the front side of the storage box and communicates with the opening of the latch storage box, and the mounting hole of the catch fixing plate, and is inserted into the back side of the catch fixing plate. A latch seat for a door frame, which is formed by screwing the tip of a screw into a rectangular anti-rotation nut that is positioned and stored in a locking recess and is sized to restrict rotation by hitting the inner surface of the locking recess. mounting structure.