JPH0332210Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a door lock device that can be easily attached to a door and a door frame.

(Prior Art) Conventionally, door lock devices have been attached to doors and door frames at construction sites by carpenters, joiners, and the like. That is, a side hole into which the latch member is fitted and a through hole that integrally connects the outer grip ball and the inner grip ball are drilled in the end of the door, and the door lock fitting is attached, and the latch of the door lock fitting is engaged. The locking metal fittings were installed by drilling a mounting hole in the door frame to match the position of the door locking metal fittings.

(Problems to be solved by the invention) However, the above-mentioned conventional devices have the problem that each installation must be done by a carpenter, joiner, etc. at the construction site, which is extremely troublesome and time-consuming. could be cut with a hacksaw from the outside, which caused security problems.

The present invention was developed with an eye on this problem, and it is possible to make door lock fittings and latch holder fittings extremely simple.
It is an object of the present invention to provide a door lock device that can be easily installed in a factory or a construction site and whose latch cannot be cut from the outside.

(Means for Solving the Problems) The door lock device according to the present invention has a door lock fitting inserted into and fixed to an opening provided by cutting out an appropriate position at the end of the door, and a latch portion of the door lock fitting. A latch holder is fixed to a door frame and is sized to fit into a recess provided in the door frame.

(Function) In the door lock device according to the present invention, an opening is provided in advance at the end of the door to a size that allows the door lock fitting to fit therein, and the door lock fitting is fitted and fixed into the opening. As a result, the position of the latch of the door lock fitting is also predetermined, and therefore the mounting position of the latch receiving fitting for locking this latch on the door frame is also specified in advance. Furthermore, since the latch is located at a lower level than the outer plate, it is blocked by the mounting plate and cannot be seen from the outside.

(Embodiment) An example of the implementation of the present invention will be described in detail with reference to the drawings.A latch 3 is attached to a connecting body 2 such as a prism, which is protruded from the outer grip ball 1, and can be moved left and right by rotating the connecting body 2. The connecting body 2 is connected via a latch mechanism 4 such as a cylinder, and the tip of the connecting body 2 is inserted and fixed into the inner grip ball 5 to connect the outer grip ball 1 and the inner grip ball 5.
and the latch mechanism 4 are connected and fixed together, and the height is at least higher than the height of the opening 7 of the door 6, which will be described later, and the length is longer than the opening 7. A gap 8 of the same width is provided, and a recessed portion 10 is provided near the inner grip ball 5 of the outer plate 9,
In addition, a latch hole 11 is bored in the center of the recessed portion 10, through which the latch 3 can freely move in and out through the connecting body 2 by the rotation of the inner and outer grip balls 1 and 5.
A substantially concave mounting plate 12 formed so that the tip of the latch 3 protruding from the outer plate 9 is positioned slightly lower than the outer plate 9 is attached to the mounting seats 13 and 14 of the outer grip ball 1 and the inner grip ball 5, respectively. A door lock fitting 16 is formed by drilling screw holes 15 above and below the recess 10 of the outer plate 9 of the mounting plate 12.

Then, the door 6 to which this door lock fitting 16 is attached
The length of the opening 7 is at least from the outer plate 9 of the mounting plate 12 to the connecting body 2 so that the connecting body 2 and the latch mechanism 4 of the door lock fitting 16 can be fitted. An opening 7 having a slightly longer length and a height lower than the outer plate 9 of the mounting plate 12 is provided horizontally, and stepped portions 17 are provided at the upper and lower portions of the edges of the opening 7, respectively. Provided with an opening 7 and a step 17
The height h including the height h and the height of the outer plate 9 of the mounting plate 12 are formed to be exactly the same height. Then, the connecting body 2 and the latch mechanism 4 of the door lock fitting 16 are fitted into the opening 7, and the screw hole 1 of the outer plate 9 of the mounting plate 12 is inserted.
5 on the stepped portion 17, and integrally fix the door lock fitting 16 to the door 6 with screws 18.
The side surface 19 of the mounting plate 12 and the outer plate 9 of the mounting plate 12 are formed flush with each other, and the opening 7 is shielded by the mounting plate 12. In addition, 20 in the figure is a cover of the connecting body 2.

Furthermore, the recess 10 is large enough to fit into the door stop surface 22 of the door frame 21, which is the facing position of the door lock fitting 16 attached to the door 6, and the latch 3 can be locked in the center. A latch holder 24 formed with a hole 23 is fixedly installed.

(Effect of the invention) Since the invention is as described above, the mounting position of the door lock fitting is determined by providing an opening in the door, and this also determines the mounting position of the latch receiving fitting fixed to the door frame. The device of this invention can be easily, easily, and reliably installed in a factory or construction site, and can be done without the help of a professional.Moreover, the latch is hidden by the mounting plate and cannot be seen from the outside, and cannot be cut with a hacksaw. Therefore, it has excellent security, and this device has many advantages, such as being able to be used with cylinder locks, electronic locks, and blank locks.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG. 1 is an enlarged cross-sectional view showing the door lock fitting attached to the door, and FIG. 2 is an assembled and exploded perspective view. In the figure, 1 is an outer grip ball, 2 is a connecting body, 3 is a latch, 4 is a latch mechanism, 5 is an inner grip ball, 6 is a door, 7 is an opening, 8 is a gap, 9 is an outer plate, and 10 is a recess. 11 is a latch hole, 12 is a mounting plate, 13,
14 is a mounting seat, 15 is a screw hole, 16 is a door lock fitting, 17 is a step, 18 is a screw, 21 is a door frame, 2
3 is a locking hole, and 24 is a latch receiving metal fitting.

Claims (1)

[Scope of utility model registration request] While the outer grip ball, the latch mechanism, and the inner grip ball are integrally connected, an opening at the end of the door has a slightly longer length from at least the outer plate of the mounting plate to the connecting body, and is lower in height than the outer plate. In addition to forming a part,
Steps are provided at the top and bottom of the edge of the opening, respectively, and the height is the same as the height including the opening and the steps, and the length is longer than the opening, and the width is the same as the thickness of the door. A recessed portion with a gap and a latch hole drilled near the inner grip ball of the outer plate is provided so that the tip of the latch protruding from the latch hole is located at a slightly lower level than the outer plate, so that it has a substantially inverted concave shape. A mounting plate formed in the above is fixed to the inner surface of the mounting seat of the outer grip ball and the inner grip ball, and screw holes are formed at the top and bottom of the outer plate of the mounting plate to form a door lock fitting, and the door lock is A latch holder that is formed by fitting the metal fitting into the opening and screwing the screw into the screw hole to fix it to the door, while also providing a locking hole large enough to fit the recessed part and capable of locking the latch. A door lock device that is fixed to a position facing a door lock fitting on a door frame.