JPH09132978A - Outdoor estrangement method of safety lock with chain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display various effects excellent in an accident preventive aspect with a non-electric means by making it free to release hooking of a chain by rectangularly rotating a knob of a safety lock by operating a key from outdoor at the time when an abnormal accident takes place. SOLUTION: When a key with a large number of grooves is inserted into a key hole and turned, these grooves are smoothly fit in a rack part of a sliding shaft, and the sliding shaft is lowered while compressing a spring and releases engagement of a short shaft 24 and a base shaft 3. When another knob is rectangularly turned, an engagement member 7 becomes vertical, a slider 2C is naturally lowered from a slit 7A and makes contact with an oblique line 7C and is separated from an insertion hole, and accordingly, a chain body 2A and the slider 2C is suspended on a stop part on the side of a peripheral wall of a revolving door D and a hooking function as a safety lock is perfectly eliminated, and accordingly, the revolving door D can be freely opened. At this time, when the base shaft 3 is rectangularly turned in reverse, the suspended slider 2C is gripped and made to slide traversely from the slit 7A, and hooking is carried out again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door or a door from outside when a panic occurs in a room in which a safety lock with a chain different from the main lock (a cylinder lock is frequently used) is being locked. The present invention relates to a method for separating a chain-equipped security lock from the room, which can unlock a door by a key operation and easily open a door without breaking the lock.

[0002]

[Prior Art] Conventionally, a safety lock with a chain can prevent illegal entry from the outside when locked (chain locking), but on the other hand, panic inside the room (injury due to earthquake or restraint by intruder from outside the window)
If the situation occurs, the person outside the room should be able to enter the room without breaking the lock of the safety lock with a chain even if the lock is opened, or if the door cannot be broken without breaking a part of the door. There were deficiencies that were extremely worrisome for disaster prevention, such as failure to do so.

[0003]

[Problems to be Solved by the Invention] An unexpected panic has occurred in the room, so even though a chain (also called a concentric chain) is being used for safety purposes, it is not possible to get out of the room or to perform rescue activities from the outside. A method that can be easily engaged and disengaged by simply operating the key without breaking or cutting the chain of the security lock or a part of the door from the outside, because it has a defect (reverse effect) that may cause obstruction. The early realization of is an urgent issue.

[0004]

SUMMARY OF THE INVENTION To solve the above problems, it is possible to reduce the cost by a simple structure by adding an additional means to the conventional safety lock with a chain, and to easily operate it by a simple operation method. The main objective is to provide the market as a part of a robust disaster-prevention device that is labor-saving and has no failure.

[0005]

According to the present invention, there is provided a method for separating a chain-attached security lock from the outside, wherein a slider is loosely inserted into a long hole of an engaging member of the chain-attached security lock while being locked, and a key is inserted from the outside. By the operation, the engaging member is tilted vertically, and the slider is separated by its own weight so that the rotary door can be opened with bare hands. Further, in the above configuration, when the engaging member returns to the horizontal direction due to the separation of the key, both end sides of the engaging member sneak into the step of the reinforcing tool to maintain horizontal maintenance.

[0006]

[Operation]

(At the time of panic) Since the owner of the lock key of the present lock or the chain-locked security lock according to the present invention is a person having a close relationship of trust such as a family member or an administrator, both lock keys are carried. Therefore, when an abnormal situation occurs and a person in the room is exposed to danger, the conventional rescue method can not enter the room unless the door and the key are broken and the chain is cut, but the present invention locks the door outdoors. When a key with multiple grooves (splines) is inserted into the keyhole below the knob of the security lock exposed above, and is rotated, the sliding shaft has the key groove engaged with its rack portion. Therefore, the spring is compressed and descends, and the short shaft at the tip of the sliding shaft comes out of the small hole in the base shaft where the knob is fixed by the stop pin, so grasp the knob with bare hands and move it in the clockwise (positive) direction. When turned to
The horizontal engaging member that protrudes from the outer surface of the rotating door on the indoor side tilts in the vertical direction, but at this time, the studs that are erected on the base shaft become stoppers that protrude into the hollow holes on the abutment side. Since it abuts, the knob stops without turning any further, but in order to ensure that the engaging member is in the vertical state which is the desired target, it is loosely inserted in the elongated hole of the engaging member as shown in FIG. The slider together with the chain, while naturally descending due to its own weight, comes into contact with the oblique side bent at the end of the long hole and slides in the direction of the arrow, so that the locked state by the chain is completely released, and the rotating door is It is released with bare hands. Therefore, since the person who operates the key loses the lock by the chain and the slider as described above by turning the knob of the security lock, it can be sufficiently sensed that the rotating door can be opened smoothly by pressing the knob. It is possible. The short shaft on the sliding shaft side is pressed against the outer surface of the base shaft on the knob side by a spring, but the end of the kick spring wound around the base shaft is bent and fixed in the base shaft, and Since the bend is inserted and fixed in the hollow hole side of the abutment, when the knob is turned in the reverse direction, the restoring action of the kick spring causes the engaging member to approach the original position in the horizontal direction. Since the short shaft of the above-mentioned projects into the small hole of the base shaft by the restoring action of the spring, the base shaft is stopped, and the engaging member is maintained in the horizontal direction although the chain body and the slider are not hooked. (Normal time) When the engaging member is in the horizontal direction and the slider and the chain are loosely inserted in the elongated hole,
The state in which the swinging door can be opened slightly to talk with an outside visitor and to deliver and receive items is exactly the same as the conventional product, but it can be said that the door will not be forcibly pulled from outside. Therefore, if the reinforcing member is provided so as to infiltrate both ends of the engaging member into a reinforcing tool having a step as shown in FIG. 7 and FIG. Since it is originally screwed to the minor axis side of the base shaft through the anti-friction plate with a set screw, it is possible to sufficiently cover the drawback of being weak in torsion moment. Further, since both the present lock and the chain-equipped safety lock according to the present invention are methods of operating non-electrically,
It can be used at all times regardless of power failure.

[0007]

[Examples] Fig. 1 and Fig. 2 are overall schematic diagrams of a method of outdoor separation of a chained safety lock showing an embodiment of the present invention. In the figure, the main lock 1 is a well-known cylinder lock attached to one side of the rotary door D. The security lock 2 is arranged above the main lock 1 at a location where the keyhole 27 is easily visible from the outside like the keyhole of the main lock 1. This security lock 2
On the indoor side, a slider 2C attached to an end of a chain 2A anchored to a fastening portion 2B fixed to a wall surface or a door frame is loosely inserted to open the rotary door D slightly even if the slider 2C is loosely inserted. 2A has the same action as a known chain-attached lock which strains and refuses further opening, but a slider 2C connected to the chain 2A from the outside, which is conventionally impossible by the addition means, according to the present invention.
It has succeeded in separating both. More specifically, a base 3 is pivotally supported on the upper part of a rectangular support 19 that is embedded in the outdoor side of the rotary door D as a part of the security lock 2, and is machined to one side (outdoor side). The stepped shaft 4 projects forward of the abutment 19 and the knob 17 is fixed by a stop pin 18, and the short shaft 5 on the other side (indoor side) is a circle attached to the outer surface on the indoor side of the revolving door D. An angular shaft 6 which is axially supported by the plate 10 and formed at the end thereof.
The bottom plate 7D on the side of the other engaging member 7 is tightly fitted through the anti-friction plate 9 inserted in and is firmly fixed by the set screw 8. Therefore, when the knob 17 is turned, the bottom plate 7D is engaged. The member 7 smoothly slides on the outer surface of the disk 10 by the anti-friction plate 9 and works together with the base shaft. Further, the one end side bend 15 of the kick spring 14 wound around the base shaft 3 is fitted to the bottom surface of the hollow hole 16 of the support 19, and the other end side bend 15 is also fitted to the base shaft 3. When the knob 17 is rotated, the implanting pin 12 implanted in the base shaft 3 is blocked by the stopper 13 provided so as to project into the hollow hole 16 from the side of the other abutment 19 and a quarter rotation (90 degrees) or more. Can not be turned. A sliding shaft 22 is slidably inserted through a spring 25 into a deep hole 20 drilled from the lower side of the abutment 19 toward the base shaft 3, and a set screw 26 prevents the lowering and separating. . A rack portion 23 is engraved on the sliding shaft 22, and a short shaft 24 having a small diameter is formed on the tip end side thereof, and the small shaft 21 is removably inserted into the small hole 21 of the base shaft 3. Furthermore, abutment 1
A key hole 27 is formed from the surface of the plate 9 in a direction perpendicular to the deep hole 20, and a large number of other grooves 29 are formed in the key hole 27.
When the key 30 having the (spline) is inserted and rotated, the groove 29 smoothly fits into the rack portion 23 of the sliding shaft 22 in the deep hole 20, so that the sliding shaft 22 compresses the spring 25. Since the lower shaft 24 is disengaged, the short shaft 24 of the sliding shaft 22 and the base shaft 3 are disengaged. Therefore, when another knob 17 is rotated at a right angle, when the stud 13 of the base shaft 3 comes into contact with the stopper 13, that is, As shown in FIG. 5, the engaging member 7 becomes vertical, and the slider 2C naturally descends from the elongated hole 7A and comes into contact with the oblique side 7C of the end portion, and the arrow from the insertion hole 7B of the engaging member 7 follows the inclination. Since the chain 2A and the slider 2C are separated from each other in the direction, the chain 2A and the slider 2C are hung on the fastening portion 2B fixedly provided on the peripheral wall side (or the frame side) of the rotating door D, and the locking function as the security lock 2 is completely achieved. Since it disappears, the revolving door D can be freely opened. In such a state, the short shaft 24 of the sliding shaft 22 presses the outer surface of the base shaft 3 due to the restoration of the spring. Therefore, when the base shaft 3 rotates in the opposite direction at a right angle due to the restoration of the kick spring 14,
The engaging member 7 is inserted again into the small hole 21 on the side of the base shaft 3.
Is horizontal, it is possible to grasp the slider 2C that is being suspended, fit it through the insertion hole 7B of the engaging member, slide sideways toward the side end of the elongated hole 7A, and complete the latching again.
FIG. 7 and FIG. 8 show the outdoor deviation method of the chained safety lock according to claim (2), in which the engagement member 7 in the safety lock 2 is in a horizontal state, that is, the slider 2C is loosely fitted in the long hole 7A. When the swing door D is strongly pulled from the outside in the hooked state, the chain 2A is tensioned, but an unexpected torque is also generated on the side of the engagement member 7, so that both ends of the engagement member 7 can be infiltrated. If the reinforcing members 40 having steps are fixed and arranged so as not to interfere with the rotation of the engaging member 7, the engaging member 7 screwed to the angular shaft 6 of the base shaft 3 by the set screw 8 will be Since it can withstand the torsional moment due to the external force, it is possible to achieve robustness for safety.

[0008]

According to the present invention, in normal times, it can be easily used by the same method as in the conventional practice, and when an abnormal situation occurs in the room and it becomes impossible to release the hooked chain, the key operation can be performed from the outside. The two-step function that can rotate the knob of the security lock at a right angle to release the chain lock is realized by the security lock with a very simple structure. Performance, labor saving, stable function that operates reliably, low cost, etc.) can be achieved with non-electric means.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an arrangement on the outdoor side.

FIG. 2 is a schematic front view of the indoor side of FIG.

FIG. 3 is an enlarged central cutaway view of the safety lock.

FIG. 4 is a perspective view of a key.

FIG. 5 is a partially cutaway cross-sectional view when the engaging member is vertical by a key operation.

FIG. 6 is an enlarged front view of a main part engagement member.

FIG. 7 is an enlarged front view of the state in which the engaging member is embedded in the reinforcing tool.

FIG. 8 is an enlarged top view of FIG. 7.

[Explanation of symbols]

 1 Lock 2 Secured 2A Chain 2B Fastening 2C Slider 3 Base 4 Stage 4 Shaft 5 Short Shaft 6 Square Shaft 7 Engagement Member 7A Long Hole 7B Insert Hole 7C Oblique Side 7D Bottom Plate 8 Set Screw 9 Friction Plate 10 Disk 12 Implanting pin 13 Stopper 14 Kick spring 15 Bending 16 Hollow hole 17 Nob 18 Stop pin 19 Abutment 20 Deep hole 21 Small hole 22 Sliding shaft 23 Rack part 24 Short shaft 25 Bane 26 Stop screw 27 Key hole 29 groove 30 key 35 flat head screw 40 reinforcement tool D rotating door

Claims (2)

[Claims] 1. A slider is loosely inserted into a long hole of an engaging member of a chain-locked safety lock in a room, and the engaging member is vertically tilted by an operation of inserting a key from outside the room so that the slider is self-weighted. An outdoor separation method for a safety lock with a chain, characterized in that the rotating door can be opened with a bare hand by separating it by dropping. 2. When the engaging member is returned in the horizontal direction by the separation of the key, both end sides of the engaging member infiltrate into the step of the reinforcing tool to maintain horizontal maintenance. The outdoor deviation method for the safety lock with chain according to item 1.