JPS6124776A - Lock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a lock that makes a dead bolt appear and disappear.

[Conventional technology]

The dead bolt incorporated in the lock box is moved in and out by engaging the pin of the rocking body with the notch of the dead bolt while swinging the rocking body using only the pin cylinder or the pin cylinder and thumb turn. ing.

[Problem that the invention seeks to solve]

When the deadbolt is protruded, a space is created between the end of the deadbolt and the rear wall of the lock box, and since there is no stopper in this space to prevent the deadbolt from retracting, the tip of the deadbolt is When the tip of the crowbar is engaged and an external force is applied in the direction of retraction of the punto port, the dead bolt retracts, causing a crime prevention problem. [Means for Solving the Problem] This invention solves the above problem. To solve the problem, the installation required a lockbox, a through-hole in the front wall of the lockbox, a slideable port whose tip was passed through the through-hole and incorporated into the lockbox, and the side of the deadbolt. There is a link in which the tip facing the end wall is rotatably supported via a pin in the middle, and the upper end is rotatably attached to the side wall of the lockbox via a pin, and the lower end is rotated via a pin at the end of the link. A movably connected rocking plate, a transmission @ mechanism that swings the rocking plate by both or one of a pin cylinder and a thumb turn, and a tip located on one side of the dead bolt and located on the through-hole side. An arm rotatably connected to the side wall of the lock box, and a hook portion provided on the upper edge of the distal end side of the arm so that the connecting pin between the link and the rocking plate engages and raises the wooden end of the arm. , the above-mentioned dead bolt is connected to the movable unit 7f by a pin and a long hole at the end of the arm, and is raised together with the end of the arm to be interposed between the end of the dead bolt and the rear wall of the lock box. It consists of a stopper.

[For production]

In this case, the dead bolt is pushed out by pushing out the link while rotating the rocking plate by operating the key inserted into the pin cylinder or the thumb turn.

At this time, while the end of the link is raised by the rocking plate, the wooden end of the arm is raised by the engagement between the pin and the hook, and a stopper that rises together is interposed between the end of the dead bolt and the rear wall of the lock box. This prevents the dead bolt from retreating.

〔Example〕

In the figure, 1t/i installation is a lockbox, and lockbox 1 with
A through hole 3 is provided in the front wall 2 of.

4 is a dead bolt whose tip end passes through the through hole 3 and is slidably incorporated into the lock box 1.

Furthermore, the tip of a slug 5 that extends toward the through hole 3 is rotatably connected to the middle of the side surface of the dead bolt 4 via a pin 6.

Further, an upper end of a swing plate 8 located above the dead bolt 4 is rotatably supported on the side wall 7 of the lock box 1 via a shaft 9.

Further, the above-mentioned swing plate 8 is driven via a transmission device HILL by operation of either or both of the pin cylinder 10 and the thumb turn.

In the illustrated case, the pin cylinder 10 is arranged inside and outside the lock box 1, but the pin cylinder and the thumb turn may be combined.

Further, a link 5 is attached to the lower end of the swing plate 8 via a pin 12.
The ends are rotatably connected.

In addition, an arm 1 is attached to the side wall 7 through a pin 13 and faces toward the through hole 3.
The tip of the arm 14 is rotatably supported.
A hook portion 15 is provided on the upper edge midway of the arm 14 to engage with the upwardly moving pin 12 to raise the entire end of the arm 14 .

Furthermore, the end of the arm 14 is movably connected by a long hole 16 and a pin 17, and as the end of the arm 14 rises, a stopper that can be raised and lowered is interposed between the end of the dead bolt 4 and the rear wall 18. 19 are provided.

The above-mentioned stopper 19 is connected to a vertical long hole 2 provided in the side wall 7.
The end of the pin 17 is inserted into the pin 17 to be guided.

In addition, the transmission mechanism 11Fi, a gear driven by a key inserted into the pin cylinder 10, and teeth provided on the upper end periphery of the swing plate 8 are engaged with each other.

In the figure, 21 is a notch provided downward from the upper edge of the dead bolt 4 to avoid collision with the pin 12.

The lock according to the present invention has the above-mentioned structure, and its operation will be explained next. When the swing plate 8 is rotated clockwise in FIG. 1 via the transmission mechanism 11 by operating the key inserted into the pin cylinder, Tighten the link 5, push out the port 4, and lock it.

At this time, as shown in FIG. 4, just before the extrusion of the dead bolt 4 ends, the pin 12 that moves upward engages the hook portion 15 and raises the end of the arm 14.
At the same time, the stopper 19 is raised to interpose the stopper 19 between the end of the dead port 4 and the rear 1918 as shown in FIG.

Note that when the swing plate 8 is rotated in the opposite direction, the stopper 19 is first lowered, and then the dead port 4 is pulled back and unlocked.

〔effect〕

As described above, according to the lock according to the present invention, as the deadbolt is pushed out, the arm is rotated by engagement between the pin of the rocking plate and the hook portion, and the end of the deadbolt and the rear wall of the lock box are connected. Since the stopper is interposed in between while being raised, the stopper can prevent the put port from being pushed back by applying an external force.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal side view, FIG. 2 is a longitudinal front view of the same, FIG. 3 is a cross-sectional plan view of the same, and FIGS. 4 and 5 show the action of the stopper. FIG.

Claims (1)

[Claims] A mounting lock box, a through hole provided in the front wall of this lock box, a slidable dead bolt that is built into the lock box with the tip end passed through this through hole, and a pin inserted halfway through the side of this dead bolt to the end. A link with a rotatably supported end facing the wall, an upper end rotatably attached to the side wall of the lock box via a pin, and a swinging structure in which the lower end is rotatably connected to the end of the link via a pin. A transmission mechanism that swings the swing plate using a moving plate, and one or both of a pin cylinder and a sumter, and a transmission mechanism that is located on one side of the dead bolt and rotates the tip located on the through-hole side to the side wall of the lock box. A freely connected arm, a hook portion provided on the upper edge of the distal end side of the arm so that a connecting pin between the link and the rocking plate engages and raises the end of the arm, and a pin and a long end at the end of the arm. A lock comprising a stopper for the deadbolt movably connected to the hole and raised together with the end of the arm to be interposed between the end of the deadbolt and the rear wall of the lock box.