JPH0529331Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a security lock for doors and sliding doors.

[Conventional technology]

Conventionally, this type of security lock has a stopper that is attached to the other end of a chain that is fixed to the vertical frame at one end in the stopper hole of the stopper A that is attached to the vertical frame of the door as shown in Fig. 10. There are known security locks that secure the opening of the door by the movement of a bolt into and out of the lock body as shown in FIG. 11. (For example, see Japanese Patent Application Laid-open No. 14764/1983.) [Problems to be solved by the invention] Among the conventional techniques, in the former, not only is it difficult to insert the stopper into the stopper hole, but it is also difficult to close the door once. The door had to be opened slightly (hereinafter referred to as "cautious opening") to check for visitors, and then the door had to be closed again to remove the stopper from the stopper hole and unlock it, which was a time-consuming and troublesome problem. In addition, in the latter case, the length of the door bolt is limited, so the dimensions for opening the door are small, and the structure is complicated, resulting in poor smooth operation. Both had the problem of being troublesome and time-consuming, as they could not be unlocked unless they were closed again.

The present invention was devised in view of the above-mentioned problems of the conventional technology, and its purpose is to make it possible to open the door to confirm the visitor without having to close it again. A door that can be easily unlocked when open, has a built-in structure and looks good despite its large opening size, and can be locked and unlocked with a single touch, and is easy to handle and can be expected to operate smoothly. The purpose is to provide a security lock for sliding doors.

[Means for solving the problem] In order to achieve the above object, in the safety lock for doors and sliding doors of the present invention, a flexible band wire rod with a weight suspended at the lower end is fed out from inside the vertical stile, and A latch stopper is provided so as to be retractable and has an insertion hole drilled in the upper end side of the flexible band wire material for inserting a pin from below, and a stopper pin lever that slides up and down is provided in the vertical frame, The latch stopper is configured to be fitted into and removed from the insertion hole of the latch stopper. More specifically, the latch stopper is held by a stopper case that is constantly pressed by a spring in order to reduce the impact when a body or the like comes into contact with the latch stopper when the door is opened. In addition, flexible band wire materials include chain and aramid fibers in the form of bands,
Or something woven into a string is suitable. Further, it is preferable to provide a ball plunger for positioning the stopper pin lever when it is inserted or removed. Furthermore, if a solenoid is connected to the stopper pin lever that engages and disengages from the latch stopper, it can be moved electrically to lock and unlock the lock.

[Effect]

The security lock for doors and sliding doors configured as above is such that when checking for visitors, when the door is opened with the stopper pin lever inserted into the latch stopper, the flexible band wire material is attached with the weight suspended. The door can be opened cautiously during the length of time when it is pulled out toward the outside of the stile and the weight comes into contact with the case, and after confirming the visitor, the door remains in the cautiously open position. As soon as the stopper pin lever is pulled down, the door is completely opened and the flexible band wire is automatically pulled into the vertical frame and returned to its original position. Furthermore, when closing and locking the door, the door can be easily locked by simply pulling up the stopper pin lever and inserting it into the pin insertion hole of the latch stopper. Furthermore, if a body or object strongly comes into contact with the latch stopper when the door is open, the stopper case that holds the latch stopper will move back together with the latch stopper against the spring, mitigating the impact.

〔Example〕

An embodiment will be described with reference to the drawings. In FIGS. 1 and 2, a stopper pin lever 2 having a pointed upper end is inserted into the inside of a vertical frame 1 so as to slide up and down. The lower end side is bent into an L-shape to protrude outside the vertical frame 1, and a grip ball 3 is appropriately attached to the tip. A positioning recess 4 is provided on the side surface of the stopper pin lever 2 at the height of the unlocked position, and a ball plunger 5 is provided at a height position in contact with the positioning recess 4. The rear half of the latch stopper 6 (right half in Figure 1)
is held by a stopper case 9 whose tip part slightly protrudes toward the vertical frame 1 side from the door front surface 8 of the vertical stile 7,
More specifically, the stopper case 9 has a distal end portion (see FIGS. 1 and 4) that holds the latch stopper 6.
The left end (in the figure) is hollow and has an approximately rectangular parallelepiped shape, and has notches on the tip side and inner side to form a latch stopper holding frame 10 for holding and swinging the latch stopper sideways, and the stopper case 9
The rear half of the frame 10 is connected to the latch stopper holding frame 10 and is provided with a guide tube 11 of a flexible band wire rod having a rectangular longitudinal section in the horizontal direction. A magnet piece 12 is fixed so that it can easily stand still in position. Also, the stopper case 9 has a spring 13.
As a result, the tip side is constantly pushed so as to protrude from the door front surface 8. In the front half of the latch stopper 6 whose rear half is held by the latch stopper holding frame 10, a pin insertion hole 14 is vertically bored on the ascending line of the stopper pin lever 2. Insert the upper end of the flexible band wire 15, pass the other end into the guide tube 11, and then hang downward from the bottom opening 17 of the cylindrical case 16 placed over the outside of the stopper case 9. A weight 18 which also serves as a stopper is hung from the lower end. In addition, the part of the vertical frame 1 into which the latch stopper 6 enters when the door is closed is cut out in the horizontal direction to form a latch stopper entrance 19, and the latch stopper 6 is inserted into the insertion hole 14 when the stopper pin lever 2 is inserted into the insertion hole 14. A receiving washer 20 is provided in the vertical frame 1 along the side surface. Fig. 3 shows an embodiment for a sliding door, and since it does not need to be opened laterally like a door, the receiving washer 40 and the latch stopper holding frame 30 do not need to be cut out on one side, and can be used on both the left and right sides. It is desirable to form a surface.

In addition, in FIGS. 8 and 9, if the operating rod 31 of the solenoid 50 is connected to the stopper pin lever 22, the stopper pin lever 22 is moved up and down by the known electric switching operation of the solenoid 50. Can be locked. The flexible band wire material 15 is most preferably made of chain or a band material having the same flexibility and strength, such as a band or string made of aramid fiber (manufactured by Toray Industries, Inc., trade name: Kevlar). Suitable.

[Effect of idea]

Since the present invention is configured as described above,
This produces the following effects.

When opening the door as a precaution to check for visitors with the stopper pin lever inserted into the insertion hole of the latch stopper, the door can be opened by the length of the flexible band wire, so the door is fully open. You can expect the door to open wide and operate smoothly, and if you want to open the door further after checking for visitors, keep the door in the same position as when you opened it cautiously and pull the stopper pin lever down. The latch stopper is detached from the latch stopper and the door becomes open in an instant, and at the same time, the latch stopper is also pulled back toward the latch stopper holding frame by the gravity of the weight and the smooth pulling force of the flexible band wire, and is placed inside the latch stopper holding frame. The latch stopper is instantly retracted into the latch stopper holding frame due to the adsorption action of the magnetic piece, allowing the door to be opened freely. If the door is opened and a person or object is entering or exiting and hits the latch stopper, the stopper case and the latch case will move back against the spring to reduce the impact, and when closing and locking the door, Contrary to the above, the safety lock can be locked by simply raising the stopper pin lever and inserting it into the insertion hole of the latch stopper.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of the guard lock, Figure 2 is a cross-sectional view taken along the line A-A in Figure 1, Figure 3 is a partial cross-sectional view showing the lock for sliding doors, and Figure 4 is a cross-sectional view of the stopper case. A perspective view, Figure 5 is a left side view of a portion of the vertical frame, Figure 6 is a perspective view of the case, Figure 7 is a left side view of a portion of the vertical frame, and Figure 8 is a left side view of a portion of the vertical frame.
The figure is a front view showing an embodiment in which a solenoid is attached to a stopper pin lever, Figure 9 is a partial cross-sectional view of a solenoid attached to a stopper pin lever for a sliding door, and Figures 10 and 11 are respectively conventional precautions. FIG. 3 is a front view of the main parts of the lock. 1... Vertical frame, 2, 22... Stopper pin lever, 3... Grip ball, 4... Positioning recess, 5...
Ball plunger, 6... Latch stopper,
7...Stile, 8...Door tip, 9...Stopper case, 10,30...Latch stopper holding frame,
11...Guide cylinder, 12...Magnet piece, 13...
... Spring, 14 ... Insertion hole, 15 ... Flexible band wire, 16 ... Case, 17 ... Bottom opening, 18
... Weight, 19 ... Latch stopper entrance, 2
0, 40... Receiving washer, 31... Operating rod, 50...
...Solenoid, 51...Limit switch.

Claims (1)

[Claims for Utility Model Registration] 1. A stopper case 9 is provided with a substantially rectangular vertical cross section whose tip is pushed back from the inside of the vertical stile 7 by a spring 13 and whose tip recedes into the vertical stile 7 from the door front surface 8. A weight 18 is hung at the lower end of the latch stopper holding frame 10, 30 formed on the tip side of the stopper case 9, and the upper end side of the flexible band wire 15 that is always drawn inside the vertical stile 7 is secured. Insert the rear half of the latch stopper 6 into abutment, make an insertion hole 14 vertically in the front half of the latch stopper 6, and insert the receiving washer 2 into the vertical frame 1 at the side abutment position of the latch stopper 6.
This security lock for doors and sliding doors is provided with stopper pin levers 2 and 22, which are inserted into insertion holes 14 from below, in a vertical frame 1. 2. The security lock for doors and sliding doors according to claim 1, wherein the flexible band wire material 15 is a chain, a fabric band, or a string. 3. The security lock for doors and sliding doors according to claim 1, wherein a solenoid 50 is connected to the stopper pin levers 2, 22.