JPH0583245U - Electric door lock - Google Patents

Abstract

(57) [Summary] [Constitution] The indoor side central core 5 and the outdoor side central core 6 are provided separately, and a cam stopper driven by a solenoid restricts only the rotation of the outdoor side central core 6. In addition to being engaged, the battery 24 as a power supply source is built in together with the card reader 21 and the control means 20. [Effect] Even when the handle on the outdoor side is locked, the door can be freely opened from the indoor side. In this case, it is not necessary to separately provide a switch for opening the door from the indoor side, which is conventionally required, and the battery 24 is built in together with the card reader 21 and the control means 20, so that the door can be opened. At the time of installation, it is not necessary to provide a signal line or a power supply line that is routed outside the door, and as a result, the installation on the door can be easily performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric door lock provided on, for example, a door of a guest room of a hotel.

[0002]

[Prior Art]

 In the electric door lock as described above, a lock case that is usually embedded in the door, and an outdoor case and an indoor side that are attached along the door outside and inside surfaces, respectively, sandwiching the lock case. A case and a square core (turning power transmission member) penetrating the outdoor side case, the indoor side case, and the lock case and having both ends connected to the outdoor side handle and the indoor side handle, respectively, are provided. In the lock case, there are provided a latch cam that engages with the square core, and a retractable member such as a latch bolt that retracts from the end face of the door in conjunction with the rotation of the latch cam.

Further, a cam stopper (regulating member) that regulates the rotation of the latch cam and a solenoid or a motor (electric actuator) for driving the cam stopper are provided, and unlocked from the outside of the room. In this case, by inserting the card into a separately provided card reader (unlocking operation means) on the outside of the door compartment, the control means determines whether or not this card is a conforming card satisfying predetermined conditions. The solenoid is actuated by a signal from, and the rotation restriction state of the latch cam by the cam stopper is released. As a result, by rotating the handle on the outdoor side, the latch bolt is retracted and the door can be opened.

[0004]

[Problems to be solved by the device]

 However, in the above-described conventional electric door lock, since not only the handle on the outside of the room but also the handle on the inside of the room does not rotate when locked, the door cannot be opened from the inside of the room with the same configuration. Therefore, it is necessary to provide a switch separately on the wall on the indoor side and operate the solenoid by this switch. In this case, it is necessary to carry out wiring work between the wall and the door to electrically connect the switch and the solenoid in the lock case. For this reason, there arises a problem that the work of mounting such an electric door lock becomes complicated.

Further, as described above, the electric door lock is further provided with unlocking operation means such as a card reader for unlocking operation on the outdoor side, and control means for generating a solenoid actuation signal. However, conventionally, when performing signal wiring between these electric devices and power supply wiring from the outside, wiring work from the wall to the door is required. Is complicated.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to freely open a door from the indoor side without providing a separate switch on the wall on the indoor side. At the same time, it is possible to reduce the wiring work for connecting to the outside of the door at the time of mounting on the door, and thereby to provide an electric door lock that can improve the workability of the mounting work.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the electric door lock of the present invention includes a lock case embedded in a door, and an outdoor case and a room which are respectively attached to the outdoor and indoor surfaces of the door with the lock case interposed therebetween. An inner case, a rotational force transmission member that penetrates the outdoor case, the indoor case, and the lock case, and has both ends connected to the outdoor handle and the indoor handle, and an unlocking operation on the door outdoor side And an unlocking operation means for emitting an electric signal in accordance with the electric door lock, wherein the turning power transmission member is separated into an outdoor side and an indoor side in the lock case, and in the lock case, the outdoor side. And a retractable member that is retracted from the end face of the door in conjunction with the rotation of each power transmission member on the indoor side, a regulation member that regulates only the rotation of the rotation power transmission member on the outdoor side, and the rotation regulation of this regulation member. Move from the position to the restriction release position Further, a pneumatic actuator is provided, and a control means for operating the electric actuator based on an electric signal from the unlocking operation means, and a power supply to the control means, the unlocking operation means and the electric actuator. It is characterized in that a battery for supplying the water is incorporated between the outdoor case and the indoor case together with the unlocking operation means.

[0008]

[Action]

 According to the above configuration, the rotation of the outdoor side power transmission member is regulated by the regulation member, and even when the outdoor side handle is locked, the indoor side power transmission member does not rotate. Since it is separated from the power transmission member, the handle on the indoor side can be freely rotated. Therefore, the door can be freely opened from the indoor side.

In the above configuration, it is not necessary to provide a switch for opening the door from the indoor side, which has been conventionally required, on the wall on the indoor side, and the unlocking operation means and the control means are also electrically operated. Since it is installed between the indoor case and the outdoor case together with the battery as the power supply source, there is no need to provide signal wiring or power supply wiring to the outside of the door when installing it on the door, resulting in installation work. Can be done easily.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. As shown in FIG. 1, an indoor side case 2 and an outdoor side case 3 of an electric door lock 1 are provided in a back-to-back arrangement with a door 4 interposed therebetween, and a lock is provided at a position between the cases 2 and 3 on the door 4. Case 7 is buried.

At the lower side of the indoor side case 2 and the outdoor side case 3, respectively, an indoor side angular core 5 as a turning power transmission member that penetrates the cases 2 and 3 and reaches substantially the center of the door 4 is provided. The outdoor side corner cores 6 are separated from each other, and each of them is rotatably provided. Knobs and levers (not shown) as handles are provided on the outer ends 5a and 6a of the both corner cores 5 and 6, and the inner ends 5b and 6b are the lock cases shown in FIGS. 2 and 3. The latch cams 8 and 9 in 7 are engaged with the square holes 8a and 9a, respectively.

As shown in FIG. 2, a retractor 10 that slides in association with the rotation of the latch cam 8 or the latch cam 9 is provided near the latch cams 8 and 9. A latch bolt 11 is provided in the vicinity of 10 as a retractable member that retracts from the end surface of the door 1 in association with the sliding movement of the retractor 10. Above the latch bolt 11, a latch stopper 29 for restricting the sinking of the latch bolt 11 is provided.

Notches 8b and 9b are formed in the latch cams 8 and 9, respectively, and one end 13a of a cam stopper 13 as a regulating member is engaged with the notch 9b. As shown in FIG. 4, at one end portion 13a of the cam stopper 13, an escape groove 13c is formed at a position corresponding to the latch cam 8, so that the notch 8b and the cam stopper 13 are not engaged with each other.

As shown in FIG. 2, the other end 13b of the cam stopper 13 is engaged with a first projecting piece 14a of a cam joint 14 which is provided at a rotating position. The cam stopper 13 and the cam joint 14 constitute a cam stopper mechanism 12. Further, the second protrusion 14b of the cam joint 14 enables the unlock switch 15 provided near the cam joint 14 to be turned on when the engagement of the cam stopper 13 and the notch 9b is released. Is formed in.

Further, a notch 14c is formed in the cam joint 14, and the notch 14c is engaged with a pin 18 provided at the tip of a plunger 17 in a solenoid 16 as an electric actuator. ..

As shown in FIG. 1, the solenoid 16 is electrically connected to the control means 20 formed on the printed boards 19 and 19. The control means 20 is, for example, a one-chip CPU equipped with I / O, ROM, and RAM. The printed circuit boards 19 and 19 provided with the control means 20 are arranged immediately above a card reader (unlocking operation means) 21 for reading the data recorded on the card 23 via spacers 22.

The card reader 21 is attached to the upper side of the outdoor case 3, and an opening 3a is formed in the outdoor case 3 at a position corresponding to the card insertion opening 21a of the card reader 21. ing. A magnetic card, an IC card, or the like is applied as the card 23.

On the other hand, a battery box 25 for accommodating the battery 24 is built in the indoor case 2, and a removable lid 2a is provided at a portion of the indoor case 2 corresponding to the battery box 25. It is provided. Further, in this electric door lock 1, a thumb turn 26 used in an emergency is provided inside the room, and a cylinder 28 for locking / unlocking with a key 27 is provided outside the room. Below the cylinder 28, a shutout indicator 30 is provided.

In the above configuration, when the card 23 is inserted into the card reader 21 and the control means 20 determines that the card 23 is a compatible card, the plunger 17 in the solenoid 16 is operated as shown in FIG. As shown in FIG. The cam joint 14 is rotated in the B direction by the pin 18 provided at the tip of the plunger 17.

By the rotation of the cam joint 14 in the B direction, the unlocking switch 15 is turned on by the second projecting piece 14b of the cam joint 14, and the cam stopper 13 is moved by the first projecting piece 14a. Move in the direction. As a result, the cam stopper 13 is moved from the rotation restricting position where the one end 13a is engaged with the notch 9b in the latch cam 9 to prevent the latch cam 9 from rotating to the restriction releasing position, and the latch cam 9 is released. It is ready to rotate.

In this state, the square core 6 is rotated by the handle on the outside of the room, whereby the latch cam 9 rotates in the D direction, so that the retractor 10 slides in the E direction. By the sliding of the retractor 10 in the E direction, the restriction of the latch bolt 11 in the latch stopper 29 is released, and the latch bolt 11 is retracted into the lock case 7. As a result, the door 4 provided with the electric door lock 1 can be opened from the outside of the room.

On the other hand, even when the cam stopper 13 and the outdoor side latch cam 9 are engaged with each other, and therefore the rotation operation of the outdoor side handle is restricted, the ratchet cam 8 on the indoor side is not locked. Since the latch cam 8 is located in the relief groove 13c of the cam stopper 13, the rotation of the latch cam 8 is not limited to the cam stopper 13. Therefore, the handle on the indoor side can be freely rotated, and the operation of this handle causes the indoor side central core 5 and the latch cam 8 to rotate, whereby the latch bolt 11 is locked. Immerse in 7. As a result, the door can be freely opened from the indoor side.

As described above, in the above-described embodiment, the rotation of the outdoor side corner core 6 is restricted, and the indoor side handle is connected even when the outdoor side handle is locked. Since the corner core 5 on the indoor side is rotatable, the door can be freely opened from the indoor side. Therefore, it is not necessary to provide a switch or the like, which was conventionally required for opening the door from the indoor side, on the indoor wall, and further, the card reader 21, the control means 20, and the battery 24 as a power supply source are incorporated. Since it has a configuration, it is not necessary to provide a signal line or a power supply line that is routed outside the door when the door 4 is attached. Therefore, the mounting work can be easily performed.

[0024]

[Effect of the device]

 As described above, in the electric door lock of the present invention, the rotation power transmission member having the outdoor side handle and the indoor side handle connected to both ends is separated inside and outside the lock case. Along with this, the retractable member that is retracted from the end face of the door in conjunction with the rotation of the outdoor power transmission member and the indoor power transmission member in the lock case, and the regulation member that restricts only the rotation of the outdoor power transmission member And an electric actuator for moving the restricting member from the rotation restricting position to the restricting releasing position, and a control means for operating the electric actuator based on an electric signal from the unlocking operation means. A battery for supplying electric power to the control means, the unlocking operation means, and the electric actuator is built in between the outdoor side case and the indoor side case together with the unlocking operation means.

Therefore, even when the handle on the outdoor side is locked, the indoor-side turning power transmission member can be rotated, whereby the door can be freely opened from the indoor side. In this case, it is not necessary to provide a switch or the like, which was conventionally required for opening the door from the indoor side, on the wall on the indoor side, and the unlocking operation means and the control means also serve as a power supply source. Since it is built in between the indoor case and the outdoor case together with the battery, there is no need to provide a signal line or power supply line that runs around the door when installing it on the door, and as a result, it is installed on the door. This has the effect of making it easy to perform.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an overall configuration of an electric door lock according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a structure inside a lock case of the electric door lock.

3 is a cross-sectional view taken along line XX in FIG.

FIG. 4 is a detailed view showing a relationship between a latch cam and a cam stopper in the lock case.

[Explanation of symbols]

 1 Electric Door Lock 2 Indoor Side Case 3 Outdoor Side Case 4 Door 5/6 Square Core (Turning Power Transmission Member) 7 Lock Case 11 Latch Bolt (Retractable Member) 13 Cam Stopper (Regulating Member) 16 Solenoid (Electric Actuator) 20 Control means 21 Card reader (unlocking operation means) 24 Battery

Claims (1)

[Scope of utility model registration request] Claims: 1. A lock case embedded in a door, an outdoor case and an indoor case that are attached to the outdoor surface and the indoor surface of the door with the lock case interposed therebetween, and the outdoor case and the indoor side. A rotary power transmission member that penetrates the case and the lock case and is connected at both ends to the outdoor handle and the indoor handle, respectively, and an unlocking operation means that emits an electric signal in response to an unlocking operation on the door outdoor side. An electric door lock comprising: the rotation power transmission member is separated into an outdoor side and an indoor side in a lock case, and the rotation power transmission member on the outdoor side and the indoor side is rotated in the lock case. A retractable member that interlocks with the end surface of the door, a restricting member that restricts only the rotation of the outdoor power transmission member, and an electric actuator that moves the restricting member from the rotation restricting position to the restricting releasing position. Is provided, and The unlocking operation includes a control means that operates the electric actuator based on an electric signal from the unlocking operation means, and a battery that supplies power to the control means, the unlocking operation means, and the electric actuator. An electric door lock, which is built in between the outdoor case and the indoor case together with the means.