JPH0311351B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cylinder lock having horizontal and vertical bars, and particularly to a cylinder lock with a panic handle.

(Prior art and its problems) Conventionally, the so-called
In a three-point lock, the locking cam is rotated by the operation of a cylinder cam attached to the cylinder, and the locking element of the locking cam is engaged with the teeth of the dead bolt and the rod moving pinion to lock the lock. With this type of cylinder lock, only the part of the cylinder where the key is inserted and which rotates the cylinder cam can be easily replaced, so it is useful when unifying the locks of the entire building or when dealing with lost or damaged keys. It has good properties and is currently widely used.

However, in order to unlock a cylinder lock with such a configuration, it is first necessary to use the cylinder lock to unlock the pinion gear of the locking cam, and then rotate the pinion to retract the rod and dead bolt. It takes time to unlock the door in case of an emergency. Therefore, it is desirable to attach a so-called panic handle that unlocks the lock with one operation in case of an emergency, but conventional locks with a panic handle simply have a vertical bolt attached to the panic handle due to construction difficulties. Only a connected structure or a structure in which a panic handle is connected to a horizontal latch are used.

(Object of the Invention) The present invention has been made in view of the above circumstances, and an object of the present invention is to attach a panic handle to a cylinder lock having the above-mentioned structure.

(Structure of the Invention) In the present invention, the locking cam is rotated by the operation of the cylinder cam attached to the cylinder of the cylinder lock with a panic handle, and the engager of the locking cam is connected to the dead bolt and the pinion for moving the rod. In a cylinder lock that locks by engaging with the teeth of the rod, the locking cam forms a pushing part that rotates in the unlocking direction when the locking cam is pushed upward or downward, and one of the racks for moving the rod. This objective was achieved by protruding an unlocking member that abuts the pushing part of the locking cam at the end of the locking cam side, and forming a mounting part for the panic handle on this rack or unlocking member. .

(Example) The present invention will be described in detail below based on an example shown in the drawings.

Fig. 1 shows the locked state of an embodiment in which the present invention is applied to a cylinder lock used for a strong air-tight door such as a soundproof door. Yes, the cylinder cam 2 is rotated by the rotation of a key inserted into the keyhole (not shown) of the cylinder 1, and
The cylinder 1 is detachably attached to a mounting member 3. Reference numeral 4 denotes a substantially sector-shaped locking cam operated by the cylinder cam 2, which is pivotally attached to the mounting member 3 by a shaft 5 and has a U-shaped protrusion 6 protrudingly provided to engage with the cylinder cam 2. When the cam 2 rotates and collides with the engaging portion 6a or 6b of the opposing projection 6, the locking cam 2 rotates about the shaft 5. Note that the abutting portions 6a and 6b are preferably long in advance so that they can sufficiently abut even when the cylinder cam 2 is short, and the reason why the protrusion 6 is made into a U-shape is because the protrusion 6 is a cylinder. This is because when welding to the cam 2, the work is easy and the positional relationship between the abutting portions 6a and 6b can be maintained constant. Further, an engaging element 7 is formed on the side surface of the locking cam 4, and this engaging element 7 engages with and disengages from the teeth of the pinion 8 as the locking cam rotates, thereby controlling the rotation of the pinion 8. The pinion 8 is rotated by a handle (not shown) fitted into a rectangular cavity 8a formed in the center, and is connected to a dead bolt 11 and a hexagonal rod 12a, 12b via a pin 9 and a pair of racks 10a, 10b. move. Reference numeral 13 denotes an Ω-shaped spring interposed between a pin 14 protruding from the locking cam 4 and a pin 15 protruding from the main body.
A resilient force is applied to rotate the locking member 7 to the left, and the locking cam 4 rotates to the right against this resilient force to a position where the engager 7 engages with the teeth of the pinion 8. When the pin 14 protruding from the locking cam 4 is in the opposite position to the straight line connecting the shaft 5 and the pin 15 protruding from the main body, as shown in FIG. 4, the spring 1
3 applies an elastic force to the locking cam 4 to rotate it in the right direction and maintain the locked state. Furthermore, rod 12a
An unlocking member 16 is attached to the end of the moving rack 10a on the side of the locking cam 4. The unlocking member 16 rotates and unlocks the locking cam 4 by coming into contact with a pushing portion of the locking cam 4, which will be described later.
In this embodiment, as shown in FIGS. 1 and 2, the unlocking member 16 consists of a vertically long L-shaped plate disposed on the back side of the rack 10a, that is, on the key insertion side, and has an opening at the lower right edge. It is orthogonally connected to an L-shaped member 17 attached to the rack 10a, and the end of this L-shaped member 17 protrudes into a recess 18 formed at the end of the rack 10a, and a panic handle (not shown) is connected to the rack 10a. A mounting portion 19 is formed.
In this embodiment, the unlocking member 15 and the panic handle mounting part 19 are integrated to facilitate production, but they are constructed separately and attached to the rack 10a, and furthermore, the unlocking member 15 and the mounting part 19 are integrated. The portion 19 may be integrated and mounted separately from the rack 10a. Also,
The panic handle mounting portion 19 may be formed directly on the rack 10a or the like. Further, in this embodiment, the pin 13 interposing the spring 13 is connected to the unlocking member 16.
The pushing part 20 is used to rotate and unlock the locking cam 4 by contacting and pushing the pushing part 20, but it may be formed in other parts of the locking cam 4.

In order to use the present invention having the above configuration, normally a handle (not shown) inserted into the pinion 8 is used in the same way as in the conventional strong air tight door, and the dead bolt 11 and the hexagonal rods 12a, 12b are closed.
The cylinder 1 is moved and locked or unlocked using a key inserted into the cylinder 1. In an emergency, when a panic handle (not shown) attached to the attachment part 19 is pushed down through a recess 21 formed in the main body, the rack 10a moves upward and rotates the pinion 8. Therefore, the dead bolt 11 and the hexagonal rods 12a, 12b are retracted, and at the same time, the unlocking member 16 protruding from the end of the rack 10a engages the pushing part 20 (pin 1) of the locking cam 4.
4), the locking cam 4 is rotated to the left, that is, in the unlocking direction, and the door is instantly opened as shown in FIG. 4, allowing the user to escape. When locking the door again, the trigger 22 is activated and the pinion 8 is rotated by the handle to project the dead bolt 11 and hexagonal bolts 12a, 12b and pull the door closer.

Furthermore, what is shown in FIG. 5 is another embodiment of the present invention, and the configuration of this embodiment is approximately the same as that of the above embodiment, but the dead bolt 11 in the above embodiment is
and bolts 12a, 12b to latches 23, 24.
and 25. Therefore, when the door is closed after activating the panic handle, the trigger 21 is activated and at the same time the three latches 23, 2 are activated.
4 and 25 are returned to the locked state, especially when no handle is provided on the outside, which has a crime prevention effect.

(Effects of the Invention) The present invention provides a cylinder lock in which locking is performed by engaging an engager of the locking cam with a gear of a dead bolt and a rod moving pinion by operating a cylinder cam attached to the cylinder. Alternatively, the locking cam may form a pushing part that rotates in the unlocking direction when pushed downward, and the locking cam may come into contact with the pushing part of the locking cam at the end of one of the racks for moving the rod. Since a locking member is provided and a mounting part for a panic handle is formed on the rack or unlocking member, the locking cam's engager is connected to the dead bolt and the pinion gear for moving the rod by the operation of the cylinder cam attached to the cylinder. Even in the case of a cylinder lock that locks by engaging with the container, the panic handle can be attached to the container, and its operation is reliable and return is easy, especially when the dead bolt and rod are made with a latch mechanism. In addition to being easy to return to, as each latch protrudes by simply closing the door and activating the trigger, it also has a security effect when no handle is provided on the outside. It is effective.

[Brief explanation of the drawing]

Figures 1 to 4 show one embodiment of the present invention, Figures 1 and 2 are overall configuration diagrams, and Figures 3 and 4 are explanatory diagrams of the operating states of the cylinder cam, locking cam, and pinion. FIG. 5 is an overall configuration diagram showing another embodiment of the present invention. 1...Cylinder cam, 2...Cylinder, 3...
Mounting member, 4... Locking cam, 5... Shaft, 6... Protrusion, 6a, 6b... Engaging portion, 7... Engaging element, 8...
...Pinion, 8a...Vacancy, 9...Pin, 10
a, 10b...Rack, 11...Dead Bolt,
12a, 12b...Hexagonal rod, 13...Spring,
14, 15...Pin, 16...Unlocking member, 17...
... L-shaped member, 18 ... recess, 19 ... mounting part, 2
0...Pushing part, 21...Recessed part, 22...Trigger,
23, 24, 25... Latch.

Claims (1)

[Scope of Claims] 1. A cylinder in which a locking cam is rotated by the operation of a cylinder cam attached to the cylinder, and an engager of the locking cam is engaged with the teeth of a dead bolt and a rod moving pinion to perform locking. In the lock, a pushing part is formed in which the locking cam rotates in the unlocking direction when the locking cam is pushed upward or downward, and the locking cam is attached to the end of the locking cam side of one of the racks for moving the rod. A cylinder lock with a panic handle, characterized in that an unlocking member that comes into contact with a pushing part is provided protrudingly, and a mounting part for a panic handle is formed on this rack or unlocking member. 2. A cylinder lock with a panic handle according to claim 1, characterized in that the dead bolt and rod are latch mechanisms.