JPH04357286A - Electric lock - Google Patents

Abstract

PURPOSE:To maintain the convenience of electric lock, while improving the crime preventing property thereof. CONSTITUTION:An electric lock consists of a lock main frame 10 having a dead bolt, which is made to go forward and backward by the remote control, and a receiver seat 20 having a receiver hole, in which the dead bolt 12 is inserted and disconnected therefrom. The dead bolt 12 has flexibility, while a lock piece 11 is fixed to the tip thereof, and the lock main frame 10 has a midway stop means for stopping the going forward and backward of the dead bolt 12 on the way, and the lock piece 11 is disconnected only when the dead bolt 12 is made to go backward from the receiver hole without bend.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric lock.

0002

[Prior Art] An electric lock is equipped with a lock body having a deadbolt that moves forward and backward by remote control, and a catch having a receiving hole into which the deadbolt is inserted and removed. Each is fixed to the The deadbolt included in the lock body is moved forward and backward from the lock body by remote locking/unlocking control from an operating unit installed in a living room, bedroom, or the like. When the deadbolt advances, the deadbolt inserts into the receiving hole of the catch, so the entrance door is locked, and when the deadbolt moves back, the deadbolt comes out of the receiving hole of the catch, so the entrance door is locked. becomes unlocked.

0003

[Problem to be solved by the invention] This type of electric lock does not have a chain lock function, and when the lock is remotely unlocked from the operating unit, the deadbolt comes out of the receiving hole in the catch and the entrance door can be opened. Visitors can enter. Therefore, it is not possible to use the chain lock function to slightly open the front door to check for visitors and then fully open the front door, making it unsafe for crime prevention. When installing a chain lock, there was a problem in that although it was an electric lock that could be unlocked by remote control, the user had to go all the way to the front door to remove the chain lock.

[0004] The present invention was made to improve the above-mentioned problems, and its purpose is to open the door slightly, confirm the visitor, and then fully open the door. The purpose of the present invention is to provide an electric lock that is equipped with a so-called chain lock function to improve security, and that maintains the convenience of an electric lock in that the door can be unlocked by remote control without having to go to the door. .

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides an electric lock body comprising a lock body having a deadbolt that moves forward and backward by remote control, and a catch having a receiving hole into which the deadbolt is inserted and removed. In the lock, the deadbolt is flexible and has a locking piece fixed to its tip, the lock body has an intermediate stop means for stopping the deadbolt from advancing or retreating midway, and the lock body has a stop means for stopping the deadbolt from advancing or retreating midway, and The locking piece is characterized in that the locking piece is removed only when the deadbolt retreats without bending.

[0006]

[Operation] With the above structure, when the locking piece stops at a position where the locking piece does not reach the receiving hole due to the stopping means in the middle of advancing and retracting the deadbolt, the locking piece becomes unlocked and the locking piece reaches the receiving hole. When it stops at the inserted position, it becomes locked, and when the locking piece crosses the receiving hole and the deadbolt stops at the position beyond the receiving hole, the chain becomes locked.

[0007]

[Example] An example of an electric lock according to the present invention is shown below in Fig. 1.
~Explained based on FIG. 7.

FIGS. 1 to 5 show a state in which the lock body 10 of the electric lock is fixed to the entrance door A and the catch 20 is fixed to the door frame B.
1 and 2 are plan views of the main parts, and FIGS. 3 to 5 are front views of the main parts. 6 is a front view of the main parts showing the interior of the lock body 10, and FIG. 7 shows the locking relationship between the locking piece 11 fixed to the tip of the deadbolt 12 and the receiving hole 21 of the catch seat 20. FIG. 3 is a perspective view of main parts.

As shown in FIG. 6, the lock body 10 has a deadbolt 12 that moves forward and backward in the direction of arrow X by remote control from an operating unit (not shown). dead bolt 12
is a strong band-like material that is flexible in the horizontal direction indicated by mark Y, but has no flexibility in the vertical direction and has no stretchability in the direction of arrow X. A locking piece 11 made of a steel plate and having approximately the thickness of the deadbolt 12 is fixed to the tip of the deadbolt 12, and the locking piece 11 has the width of the deadbolt 12, but the tip protrudes in the width direction. The protrusions 11a, 11a
is formed. It should be noted that wavy teeth 12a are formed over substantially the entire length of the lower side of the deadbolt 12.

An operating unit (not shown) is located below the deadbolt 12 near the forward/backward opening 10a of the deadbolt 12.
A gear 13 is provided that rotates in response to a remote control signal from an operating unit (not shown), and a lock piece 14 that is movable up and down in response to a remote control signal from an operating unit (not shown) is provided near the left side of the gear 13. A wavy tooth 14a that engages with a wavy tooth 12a provided on the dead bolt 12 is formed at the upper end of the lock piece 14. Further, a stopper 15 is provided near the left of the lock piece 14, and even if the lock piece 14 fails, the stopper 15 will stop the protrusion 12b on the rear end of the deadbolt 12.
are in contact with each other to prevent the deadbolt 12 from coming out of the opening 10a of the lock body 10.

As shown in FIG. 7, the seat 20 is made of a steel plate, and a substantially cross-shaped receiving hole 21 is formed in the portion of the seat 20 that faces the advancing/retracting opening 10a of the lock body 10. Note that the width of the vertical side of the cross shape is slightly wider than the thickness of the locking piece 11, and the length is slightly longer than the width dimension of both ends of the projections 11a, 11a of the locking piece 11. The width of the horizontal side of the cross is slightly wider than the width of the dead bolt 12, and the protrusion of the horizontal side of the cross with respect to the vertical side of the cross is equal to the neck portion 11b of the locking piece 11.
The dimensions are such that the projections 11a and 11a can be sufficiently inserted into the projections 11a and 11a.

Therefore, when a chain lock state operation signal is output from an operation unit (not shown), the gear 13 rotates, and the deadbolt 12 moves through the forward/backward opening 10a of the lock body 10.
Expanding from Then, the locking piece 11 and the dead bolt 1
2 passes through the receiving hole 21 of the receiving seat 20, advances to the position shown in FIG. 2 or FIG. 5, and stops. Then, the lock piece 14 rises and fixes the deadbolt 12. When the entrance door A is opened in this state, the flexible deadbolt 12 is bent by the opening force of the entrance door A, and the part of the deadbolt 12 that has penetrated the receiving hole 21 is pulled out from the receiving hole 21 while being bent. It slides off due to the tensile force. However, the protrusion 11 of the locking piece 11 fixed to the tip of the deadbolt 12
When a and 11a are locked in the receiving hole 21, slippage is prevented and the state shown in FIG. 1 is achieved. Therefore, the entrance door A becomes half-open, and enters a so-called chain-locked state in which it cannot be opened any further.

When a lock state operation signal is output from the operation unit (not shown), the gear 13 rotates and the deadbolt 12 moves forward and backward, and the fixed portion C between the locking piece 11 and the deadbolt 12 is connected to the lock body 10. Although the locking piece 11 is located inside the receiving hole 2
It advances and retreats to the position shown in FIG. At the same time, the lock piece 14 rises and the deadbolt 1
Fix 2. Therefore, the entrance door A is locked and cannot be opened at all.

When an unlock state operation signal is output from an operation unit (not shown), the gear 13 rotates and moves the deadbolt 12 backward. Then, the dead bolt 12 and the locking piece 11 are removed from the receiving hole 21, retreated to the position shown in FIG. 3, and stopped. Therefore, the entrance door A is in an unlocked state where it can be opened.

The lock body 10 also includes a chain lock state operation button 16 that causes the lock body 10 to perform the same operation as when a chain lock state operation signal is output from an operation unit (not shown); A locked state operation button 17 is provided that causes the lock body 10 to perform the same operation as when a locked state operation signal is output from a unit (not shown), and a chain lock state operation button 16 and a locked state operation button 17 are provided. When are pressed at the same time, the lock body 10 is activated by an operating unit (not shown).
The operation is the same as when an unlock state operation signal is output from. Therefore, the electric lock can be operated even from the vicinity of the entrance door, which is convenient.

[0016]

[Effects of the Invention] Since the electric lock of the present invention is constructed as described above, it has a so-called chain lock function that allows the door to be opened slightly to confirm the presence of a visitor, and then the door can be fully opened. At the same time, the door can be unlocked by remote control without having to go to the door, and an electric lock with improved security while maintaining the convenience of an electric lock can be provided.

[Brief explanation of drawings]

FIG. 1 is a plan view of essential parts showing a state in which an electric lock according to an embodiment of the present invention is in a chain lock state and a door is open.

FIG. 2 is a plan view of a main part showing a state in which the electric lock according to an embodiment of the present invention is in a chain lock state and the door is closed.

FIG. 3 is a front view of main parts showing the electric lock according to the embodiment of the present invention in an unlocked state.

FIG. 4 is a front view of main parts showing the electric lock according to the embodiment of the present invention in a locked state.

FIG. 5 is a front view of main parts showing a state in which the electric lock according to an embodiment of the present invention is in a chain lock state and the door is closed.

FIG. 6 is a front view of main parts showing the inside of the lock body of the electric lock according to one embodiment of the present invention.

FIG. 7 is a perspective view of a main part showing the relationship between a locking piece and a receiving hole of an electric lock according to an embodiment of the present invention.

[Explanation of symbols]

10 Lock body 11 Locking piece 12 Deadbolt 20 Catch seat 21 Receiving hole 30 Intermediate stopping means

Claims (1)

[Claims] 1. An electric lock comprising a lock body having a deadbolt that moves forward and backward by remote control, and a seat having a receiving hole into which the deadbolt is inserted and removed, the deadbolt being flexible and having a tip end. A locking piece is fixed to the lock body, and the lock body has intermediate stopping means for stopping the movement of the deadbolt midway, and the locking piece is removed only when the deadbolt retreats from the receiving hole without bending. An electric lock characterized by: