JPS6017478Y2 - door lock catch - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a seat for a door lock.

With conventional catches, when a person attempting to break in illegally inserts a crowbar or similar object into the gap between the door and frame and attempts to pry the door open, the deadbolt of the lock does not deform, but the catch deforms or breaks. This caused the problem that the door would become uncoupled with the deadbolt and open.

The present invention focuses on the above-mentioned drawbacks of the conventional art, and aims to provide an extremely safe catch seat that will not deform or break even if an unauthorized external force is applied to it.

An explanation will be given below based on an embodiment of the present invention shown in the drawings.

1 is a frame, and 2 is a catch seat attached to the surface of the frame 1, which has a tapered part 2a on which the latch comes into contact;
(not shown).

Reference numeral 3 denotes a box support that is buried in a hole provided in the frame 1;
This is formed by integral molding such as press working or die casting, and screw holes 3a are provided in the side wall portion located toward the inside of the lumbar chamber.

Numeral 4 is a screw which is inserted into the frame 1 from the indoor side and screwed into a screw hole 3a provided in the side wall of the box holder 3 to be tightened and fixed.

In addition, 5 in the figure is a dead bolt of the door lock attached to the door 6.

According to the door lock catch of the present invention having the above configuration, in addition to the conventional catch mounting screws, screws can be inserted into the frame from the indoor side and screwed into the screw holes provided in the side wall of the box catch. Since the tightening is fixed, even if you insert a crowbar etc. into the gap between the frame and the door and try to pry it open from the outside, the box holder that guards the deadbolt of the lock will be strong. Since they are fixed, the catch and box holder cannot be destroyed or removed, that is, there is no risk of the door being opened, which is very effective in terms of crime prevention.

2 shows another embodiment, in which a box holder 3 is integrally formed on the catch seat 2, a screw hole 3a is provided in the side wall of the box holder 3, and a screw 4 is inserted into the screw hole from the indoor side. It is inserted and screwed together, and the tightening indicates that it is fixed.

In addition, FIG. 3 shows the folded piece 2b formed on the catch seat 2
The bent piece 2b is inserted into a receiving hole provided in the bent piece 2b, and a screw 4 is inserted from the indoor side through a screw hole 2c provided in the bent piece 2b, and the screw 4 is tightened to be fixed.

[Brief explanation of the drawing]

Figure 1 shows the door lock catch according to the present invention in use.
FIGS. 2 and 3 are cross-sectional plan views of essential parts, showing other embodiments; FIGS. 1...Frame, 2...Catch, 3...
・Box holder, 4...Screw, 5...Dead bolt, 6...Door.

Claims (1)

[Scope of utility model registration request] A hole is provided in the frame for the door lock's dead bolt to protrude and fit into.
Insert a side wall that is integrated with the catch or a box support made separately from the catch into the hole, and insert the screw holes from the side of the frame on the indoor side into the screw holes provided in the side wall of the catch or box support. A screw is inserted through a hole provided to penetrate into the hole, and the screw is screwed into the screw hole to fix the side wall of the catch or the side wall of the box holder to the frame. A door lock catch.