JPH0218216Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a double lock type crescent lock that is attached to a sliding shoji screen.

(Prior Art) As is well known, in a double lock type crescent lock, the crescent lock is rotated and hooked onto the other crescent receiver, and then further locked to prevent the crescent from rotating in the opposite direction, that is, from the crescent receiver. It is designed to prevent the escape of You only need to remember to lock these crescent locks after closing the shoji, but if you accidentally forget to lock them, even the double lock type will not be able to perform its function.

(Purpose of the invention) With this invention, when the sliding shoji is closed, it is automatically locked at the joining part of the shoji, and even if you forget to lock the crescent, one of the double locks will surely lock. The purpose of the present invention is to provide a crescent lock that increases security in terms of crime prevention.

(Structure of the invention) The crescent lock according to this invention has the structure of a conventional crescent lock added with a separate locking mechanism that locks automatically.
A locking rod protruding toward the opposite crescent receiver intersecting therewith is provided so as to be swingable up and down, and at least one of the upper and lower edges of the crescent receiver is provided with a cam surface that is inclined from the tip; In addition, the crescent of the present invention is constructed by providing a locking portion into which the locking rod is fitted on one edge provided with the cam surface, and applying a biasing force to the locking rod to press against the cam surface. When the shoji with the lock is closed,
The locking rod is guided while being in pressure contact with the cam surface, and is fitted into the locking portion while being in pressure contact, and is automatically locked. When opening the shoji, the locking rod is lifted from the locking portion and the crescent is removed.

(Example) Fig. 1 shows a state in which a crescent lock is attached to each of the connecting frames 3 and 4 of sliding type indoor/outside shoji 1, 2, and the crescent lock is installed on the connecting frame 3 on the indoor side. It consists of a crescent main body 5 and a crescent holder 6 attached to an outdoor side joining frame 4, and the crescent holder 6 is provided to intersect with the crescent main body 5.

Therefore, the crescent main body 5 has a crescent 8 rotatably supported on a base 7, and the structure in which a handle 9 is provided on the shaft of the crescent 8 is the same as that of the conventional one, but the base 7 has a handle 9 as shown in FIG. A locking rod 1 with a square cross section above the axis of the crescent 8 as shown in FIG.
0 to penetrate the front and back of the base 7, and the pin 1
1 is pivoted to the base 7 so as to be able to swing up and down, and the locking rod 10 is horizontally mounted on the base 7.
The locking rod 10 is held by the lip of the hole 12 passing through it, and when the tip of the locking rod 10 is rotated upward from the horizontal position as shown by the two-dot chain line in FIG. A biasing force is applied to return to the horizontal state.

On the other hand, as shown in FIG. 3, the crescent holder 6 is similar to the conventional one in that it has a bent part 14 at its tip to which the crescent 8 is engaged; A cam surface 15 is formed at the top of the cam surface 15, which is an inclined surface that becomes higher and wider from the tip to the base, and the lock rod 10 is fitted into the base of the upper edge of the cam surface 15. A locking portion 16 is provided. The cam surface 15 is not limited to the tip, but is provided over almost the entire length of the upper edge, and a locking portion 16 is provided in the middle of the cam surface 15.
may be provided.

In addition, as shown in FIG. 4, the crescent receiver 6 is
A cam surface 15 is formed on the lower edge of the tip, and a locking portion 16 is provided on the lower edge. In this case, as shown in FIG.
gives an urging force that moves back horizontally.

Furthermore, as shown in FIGS. 6 and 7, the locking rod 10
A stopper rod 17 is pivotally attached in a hanging state between the pivot point and the tip of the crescent 8, a groove 19 is provided in which the tip of the stopper rod 17 enters into the shaft 18 of the crescent 8, and a guide pin 20 protruding from the base 7 is provided. When the lock rod 17 is engaged with the elongated hole 21 drilled in the plug rod 17 and the lock rod 17 is in a horizontal state, the plug rod 17 is engaged with the groove 19 to prevent the crescent 8 from rotating, and when the lock rod 10 is raised. The stopper rod 17 is set so as to escape from the groove 19 and the crescent 8 can be rotated.

In addition, the crescent receiver 6 is as shown in FIG.
Installed closer to the shoji 1 side on the indoor side, locking rod 1
0 is shortened so as not to be interfered with by the shoji 2 on the outside of the room.

As described above, according to the embodiment shown in FIG.
When the shoji 1 is slid in the closing direction, the locking rod 10 touches the cam surface 1 of the crescent receiver 6, as shown in FIG.
5, the locking rod 10 presses against the cam surface 15 and is raised upward by the urging force of the spring 13, and when it reaches the locking part 16, the locking rod 10 is pushed upward by the urging force of the spring 13. is fitted into the locking portion 16 and locked. Furthermore, when opening the shoji 1, it is sufficient to remove the crescent 8 and the locking rod 10, but in the case of the embodiment, since the rear end of the locking rod 10 protrudes toward the indoor side, the locking rod 10 can be engaged by pushing the rear end downward. It can be removed from the stop 16.

In the case of the embodiment according to FIGS. 3 and 4, the crescent receiver 6 is pushed downward by the cam surface 15,
It is locked by engaging with a locking portion 16 on the lower edge by a spring force.

In the case of the embodiments shown in FIGS. 6 and 7, the stopper rod 17 prevents the crescent 8 from moving while the shoji is sliding, and the crescent 8 is rotated after being locked with the locking rod 10. It can be locked twice by moving the lock.

(Effect of the invention) The crescent lock according to this invention includes a crescent body with a locking rod that can swing up and down, and a cam surface that slopes on at least one of the upper and lower edges of the crescent holder that is opposed to the crescent body. and a locking portion into which the locking rod is fitted is provided on one edge of the cam surface, and the locking rod is given a biasing force to press against the cam surface by a spring, and the locking rod and the cam surface are By skillfully combining the locking part and the spring, the locking rod automatically fits into the locking part and locks when the shoji is closed, so even if you forget to hook the crescent, it will not open from outside. It is something to do. Furthermore, the structure is simple and can be manufactured by improving the conventional crescent lock, and the locking lever can be easily unlocked from indoors. Moreover, even if the locked outdoor shoji is moved up and down, the locking rods move up and down and spring force is applied, so there is no fear that the locking rods will come off the crescent holder, making it an excellent crime prevention effect. It is something to play.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the crescent lock according to this invention attached to a shoji screen, Fig. 2 is a front view showing the crescent body with a part cut away, Fig. 3 is a front view showing the crescent receiver, and Fig. 4 is a front view showing the crescent lock. A front view showing a crescent receiver according to another embodiment, FIG. 5 is a sectional view showing a main part of the crescent body opposite to the crescent receiver shown in FIG. 4, and FIG. 6 is a front view showing a crescent receiver according to another embodiment. A sectional view showing the main parts of the main body.
FIG. 8 is a cross-sectional view showing the crescent main body shown in the locked state; FIG. 8 is a plan view showing a crescent lock equipped with a modified crescent receiver attached to a shoji;
This figure is a front view showing the locking action of the locking lever of the crescent lock shown in FIGS. 2 and 3. 1, 2... Shoji, 5... Crescent body, 6...
...Crescent receiver, 7...Base, 8...Crescent, 9...Handle, 10...Lock rod, 13...
... Spring, 14 ... Bent part, 15 ... Cam surface, 16 ... Locking part, 17 ... Stopper rod.

Claims (1)

[Scope of utility model registration request] A locking rod 10 is provided on the crescent body 5 so as to be vertically swingable and protrudes toward a crescent holder 6 disposed opposite to the main body 5, and at least one edge of the upper and lower edges of the crescent holder 6 is provided. A cam surface 15 whose vertical width gradually increases from the tip to the base.
A locking portion 16 into which the locking rod 10 is fitted is provided on the edge having the cam surface 15, and a biasing force is applied to the locking rod 10 by a spring 13 to press against the cam surface 15. Crescent tablet.