JPH0524774Y2 - - Google Patents

Description

[Detailed description of the invention] This invention provides a manual operating unit consisting of a cylinder lock, thumb turn, etc. for locking and unlocking the locking rod provided on the sliding door side or door frame side, and the locking rod is attached to the sliding door side. Electric operation units consisting of solenoids, motors, etc. for locking and unlocking are provided separately on the door frame side, and when the door is closed, the locking lever is engaged and unlocked at the same time no matter which operation unit is operated. This relates to an electric lock for sliding doors that can be used to lock doors.

Hereinafter, the specific configuration of the present invention will be explained with reference to the illustrated embodiments.

That is, 1 is the casing of the manual operation part with the top and bottom open, which is attached to the door frame of sliding door A while being sandwiched between the mounting plate 2 ₁ of the cylinder lock 2 and the mounting plate 3 ₁ of the thumb turn 3 in a sanderch-like manner. The tip of a locking rod, which will be described later, is fitted into the opening at the front of the casing, and a front plate 4 is attached, which has an engaging hole ₄₁ in its periphery that is engaged with an engaging protrusion by rotating 90 degrees. Inside the casing, there is a guide 1 ₁ provided with a slit-like groove,
A slider 5 that slides up and down while being guided by 1 ₂ is fitted. The guide 1 of this slider 5
An elongated hole 5 ₁ is bored in the portion corresponding to between 1 and 1 ₂ , and by fitting the spring 5 ₂ into this elongated hole, the guides 1 _{1 and} 1 ₂ are inserted into the upper and lower receivers of the spring 5 ₂ . The slider 5 acts as a spring 5
Although _it slides up and down via the spring 5, it is normally balanced by the spring 5 and held in a neutral state.

Further, the slider 5 has a hole 5 3 into which the shaft 3 ₂ integrated with the thumb turn 3 is fitted through the casing 1, and the slider 5 is provided with a hole 5 ₃ into which the shaft 3 2 integrated with the thumb turn 3 is fitted. The shaft ₃₂ moves up and down, and the slider 5 moves up and down.
Slide down. Reference numeral 6 denotes a casing of a vertically elongated electric operation unit that is attached to the door frame B at a position opposite to the casing 1, and a portion corresponding to the above-mentioned engagement hole 4 ₁ is provided with:
A shaft-shaped locking rod 7 having engaging protrusions 7 ₁ , 7 ₁ integrally formed at its tip protrudes from the front plate 6 ₁ , and
It is rotatably supported by bearings 6 ₂ and 6 ₃ . 8, plunger 8 ₁ protrudes every time electricity is applied,
This is a latching solenoid that repeatedly retracts and has a structure that maintains the protruding or retracted state of the plunger ₈₁ with a certain holding force.The plunger has teeth 7 formed on the outer circumference of the shaft of the locking rod 7 ₂
A slider 9 is _attached which has lock teeth 9 ₁ ... 9 ₁ that engage with the locking rod 7 .
It is configured to rotate back and forth once. 10 is a connecting device that connects the slider 9 and the slider 5 in the casing 1 when the sliding door A is closed, and has a recess 10 ₂ into which the shaft-shaped connecting member 10 _A and the tip 10 ₁ fit. The connecting member _10A is attached to the slider 5 via a spring ₁₀₃ so that the tip end ₁₀₁ always protrudes from the front plate 4, and the connecting member _10B is fixed to the slider 9 _. ing. Others in the figure, 11
Reference numerals _A and _11B indicate micro switches for checking the closed and locked states, respectively, and a trigger bolt 12 fitted in the casing 6 so as to always protrude from the front plate _{6 1 under} pressure from a spring 12 1 . When the door is closed and is pushed back by the opposing front plate 4,
The contact of micro switch 11 _A is pressed and closed,
At the same time as the confirmation signal for closing the door is issued, when the trigger bolt 12 protrudes, the lower end of the connecting member _10B comes into contact with the stopper ₁₂₂ provided on the bolt, and the slider 9, which had been prevented from descending, becomes free, and the slider When 9 goes down, solenoid 8
The extension of the plunger ₈₁ protruding from the upper end opens the make contact and closes the break contact of the micro switch _11B , thereby emitting a confirmation signal that the slider 9 has been lowered, that is, has been locked.

Next, in accordance with the above structure of the present invention, the specific usage and operation of the electric lock of the present invention will be explained with reference to the illustrated embodiments.
Explain the effect.

That is, FIG. 3 shows the state of the electric lock according to the present invention when the door is closed, and the plunger ₈₁ of the solenoid 8, that is, the slider 9, is held in the raised position.
The locking rod 7 is rotated to the so-called unlocked state in which the tip end can be inserted into the engagement hole ₄₁ of the front plate 4, and the tip end ₁₀₁ of the connecting member _10A is inserted into the recess ₁₀₂ of the connecting member _10B . They are mated.

Then, when the solenoid 8 is energized to project the plunger ₈₁ and lower the slider 9,
A rotational force is applied to the teeth ₇₂ ... ₇₂ that mesh with the lock teeth ₉₁ ... ₉₁ , and the locking rod 7 rotates 90 degrees. Due to this rotation, the engaging protrusions 7 ₁ , 7 ₁ at the tip of the locking rod engage with the periphery of the engaging hole 4 ₁ in the front plate 4, so even if the sliding door is pulled in the opening direction, the door cannot be opened. It becomes a so-called locked state where it cannot be used. At this time, the connecting member _10B also descends together with the slider 9, but the recess 10 into which the tip ₁₀₁ of the connecting member _10A is fitted
₂ has a sufficiently large vertical width, so it does not affect the connecting member _10A in any way, and the slider 5
retains its original neutral state.

In this locked state, when the solenoid 8 is energized again to retract the plunger 8 ₁ and raise the slider 9, the locking rod 7 rotates 90 degrees in the opposite direction to the above, and the engagement protrusions 7 ₁ and 7 ₁ are engaged. The sliding door returns to the unlocked state shown in FIG. 3 in which it does not engage the periphery of the mating hole ₄₁ , and the sliding door can be opened.

The above-mentioned locking and unlocking operations were performed electrically by energizing the solenoid, but the same applies to manual operations using the cylinder lock 2 on the outside of the door and the thumb turn 3 on the inside of the door. In the locked state, operate cylinder lock 2 to thumb turn 3 to open shaft 3 ₂
When you press down, slider 5 also releases spring 5 ₂
The tip 11 ₁ of the connecting member 11 _A pushes down the lower edge of the recess 11 ₂ of the connecting member 11 _B , and the slider 9 descends against the holding force of the plunger 8 ₁ . As a result, locking rod 7 becomes 90
Rotate once and lock. When unlocking, the slider 5 is raised by pushing up the shaft ₃₂ , and the slider 9 is raised via the connecting members _11A and _11B.The slider 5 is once locked or unlocked. Once that is done, it will return to its original neutral state.

In this embodiment, the locking rod 7 is provided on the casing 6 on the door frame side, but it can also be provided on the casing 1 on the sliding door side. In that case, the mechanism for rotating the locking rod 7 is provided on the slider 5. , the engaging protrusion 7 ₁ ,
7 ₁ may be provided in the front plate 6 ₁ of the casing 6, but in this case, a structure that holds the slider 5 in a neutral state and a structure that provides play in the connecting device cannot be adopted. Further, the rotation angle of the locking rod 7 is not limited to 90 degrees, but it is sufficient that the tip of the locking rod 7 engages with the periphery of the opening by rotating the locking rod 7 by a certain angle. Furthermore, the solenoid of the electric operation part is a latching solenoid in the illustrated embodiment, but a slider on the locking rod side is equipped with a latching solenoid.
If a mechanism is provided to maintain the rising and descending states with a constant holding force, even a normal solenoid can be used for raising and lowering.
The purpose can be achieved by using two solenoids for lowering, and the type of solenoids does not matter.

It is also possible to use a reversible rotary motor instead of a solenoid and convert the rotational movement of the motor into linear movement of the slider using a mechanism such as a rack or pinion for locking/unlocking. In addition to the mechanical connection method, any method such as one utilizing the attraction force of a permanent magnet may be used.

As described above, according to the electric lock for sliding doors according to the present invention, the manual operating part consisting of a cylinder lock, thumb turn, etc. for locking and unlocking the locking rod provided on the sliding door side or door frame side is attached to the sliding door side. In addition, electric operating units consisting of solenoids, motors, etc. for locking and unlocking the locking rod are separately installed on the door frame side, and when the door is closed, the lock can be locked by operating either operating unit via the coupling device. Since the locking rod is designed to lock and unlock in the same way, the locking rod is installed at the sliding door side,
Regardless of which side of the door frame side it is, it can be locked and unlocked independently by a manual operation part from the sliding door side and an electric operation part from the door frame side, and is simply a conventional sliding door lock. If the lock is simply improved to an electric lock, the locking rod can be locked and unlocked by operating a solenoid in the manual operation section that locks and unlocks the locking rod by operating a cylinder lock, thumb turn, etc. However, in the case of this conventional electric lock, the manual operation part and the electric operation part are integrated, so if it is installed on the sliding door side, the lead wire that supplies electricity to the solenoid can be connected to the movable part. It must be connected to the barrel sliding door side, which tends to cause disconnection accidents, and it lacks reliability.If it is attached to the door frame side, which is the fixed part, there will be no disconnection accidents, but the manual operation part is also moved to the door frame side, making it difficult to install. However, the electric lock according to the present invention has drawbacks such as poor performance and inconvenience as the locking/unlocking operation and the opening/closing operation of the sliding door must be performed separately. According to this, regardless of the mounting position of the locking rod, the manual operation part is on the sliding door side, which is the movable part.
The electric operation parts can be installed separately on the door frame side, which is the fixed part, so if you use manual operation, you can open, close, lock, and unlock the sliding door in a series, which is convenient. It is easy to wire to supply power to the parts, there are no disconnection accidents, there are few failures, and even if a failure occurs, each part needs to be inspected separately, so it is easy to find the failure location, and the lock lever is easy to connect. Since it has a rotating shaft that can be locked by turning it after it is inserted into the engagement hole, it is more aesthetically pleasing than the one that uses a sickle piece, as there is no need to drill a large vertical hole in the front plate. .

[Brief explanation of the drawing]

The drawings illustrate the embodiment of the present invention, and FIG. 1 is a schematic front view showing the electric lock of the present invention in an installed state, FIG. FIG. 4 is a cross-sectional side view of the lock in the unlocked state when the door is closed, FIG. 4 is a cross-sectional plan view taken along line A--I in FIG. 3, and FIG. 5 is a perspective view of the locking rod. 1...Casing, 2...Cylinder lock, 3...
...thumb turn, 4...front plate, 5...slider,
6... Casing, 7... Locking rod, 8... Solenoid, 9... Slider, 10... Connection device, 1
0 _A , 10 _B ...Connecting member.

Claims (1)

[Scope of utility model registration request] A shaft-shaped locking rod with an engaging protrusion at its tip is rotatably supported in a casing attached to the door frame side so that the tip protrudes from the front plate of the casing, and the locking rod is rotatably supported on the opposite sliding door side. The tip of the locking rod fits into the casing, which is attached to the sliding door side. Inside the casing is a manual operation unit consisting of a cylinder lock, thumb turn, etc. for rotating the locking rod.
In the casing on the side of the door frame, an electric operating section consisting of a solenoid or a motor for rotating the locking rod is provided, and a connecting device is provided to connect the manual operating section and the electric operating section when the door is closed. An electric lock for sliding doors.