RU2804923C2 - Lock - Google Patents

Abstract

FIELD: locks.

SUBSTANCE: lock refers to hardware installed in the entrance doors of hotel rooms, and is designed to turn off electrical consumers left on when the guest leaves the room. The lock contains a body with a guide for the key, an electrical contact installed in the door jamb that interacts with a bolt placed in the guide groove and having a bolt plate equipped with a comb and a locking post, a means for locking the bolt, including a set of spring-loaded levers with code protrusions formed by notches for interaction with the locking post, a second bolt placed in its guide groove and a double-bit key. Additional guides are installed on the inside of the housing, coaxial with the guide grooves. The crossbars are made to interact with each other by means of a strip fixed to the body in the middle, with the possibility of rotation, with grooves at the ends in which screws, fixed in the crossbars, are located. The code protrusions in the grooves of the levers, located closer to the crossbar, correspond to the secrets on the bits of the key inserted from the corridor when it is turned completely. The code protrusions in the grooves of the levers, located further from the bolt, correspond to the secrets on the bits of the key, inserted from the number when it is turned completely. The guide for the key is equidistant from the extreme notches of the levers.

EFFECT: it is possible for police and emergency medical workers to enter in case of emergency, together with the hotel administrator, who will be able to get into the room by opening it from the corridor with a spare key.

1 cl, 6 dwg

Description

The present invention relates to locks installed in the entrance doors of hotel rooms designed to turn off electrical consumers when a guest leaves the room if he forgot to turn off the machine.

A similar lock is known, which contains a DC power source, a contact installed in the door jamb that interacts with the lock bolt, an electromagnet controlled by the contact, the armature of which is equipped with a rod interacting with a ratcheting mechanism of a two-position electric switch connected to a changeover electric switch and a load in the form of room lighting lamps (see patent US US 941777, IPC H01R 31/00, current US class 307/114, published November 30, 1909).

The disadvantage of the analogue is that the device is complicated.

A similar lock is known, containing a rotary door handle connected through a block with a cable to a rotary mechanism interacting with an electric switch that turns off the light when the guest leaves the hotel room (see US patent US 1464788, IPC N01N 3/16, current US class 200/61.62, published 14 August 1923).

The disadvantage of the analogue is that the device is complicated.

The closest device of the same purpose to the claimed invention in terms of the set of features is a lock consisting of a body in which two bolts are placed, the upper one, controlled only from the corridor, and the lower one, controlled only from the room, and an electrical contact installed in the door jamb that interacts with top bolt (see US patent US 4091866, IPC F24F 11/00, current US class 165/138, published May 30, 1978) is accepted as a prototype.

The disadvantage of the prototype is that the control mechanism for the second bolt is located inside the room. The second crossbar from the corridor is not controlled. As a result, police and emergency medical workers are not allowed to enter in case of emergency, along with the hotel manager, who will not be able to get into the room. In fact, the lower bolt with its moving mechanism performs the function of a regular latch, only it was placed in the lock body for the sake of the door design.

The technical challenge is to be able to operate the control mechanism of the second bolt from the corridor in order to open the lock.

The technical result is to ensure the entry of police and emergency medical workers in emergency cases, together with the hotel administrator, who will be able to get into the room by opening it from the corridor with a spare key.

The specified technical result is achieved by the fact that in the known lock, containing a housing with a guide for the key, an electrical contact installed in the door jamb interacting with a bolt located in the guide groove and having a crossbar plate equipped with a comb and a locking post, a means for locking the bolt, including a set of spring-loaded a lever with coded protrusions formed by notches to interact with the locking post, a second bolt placed in its own guide groove and a double-bit key, the peculiarity is that additional guides are installed on the inside of the body, coaxial with the guide grooves, the crossbars are made to interact with each other by another means, mounted on the body in the middle with the possibility of rotation, strips with grooves at the ends in which screws are placed, fixed in the crossbars, while the code protrusions in the grooves of the levers located closer to the crossbar correspond to the secrets on the bits of the key inserted from the corridor when its full rotation, and the code protrusions in the notches of the levers located closer to the distance from the bolt correspond to the secrets on the bits of the key inserted from the number during its full rotation, and the guide for the key is equidistant from the outer notches of the levers.

The invention is illustrated by drawings.

Fig. 1 - lock in the “open” position.

Fig. 2 - the lock is in the “closed from the corridor” position.

Fig. 3 - the lock is in the “locked from inside the hotel room” position.

Fig. 4 - shape of the key bits for the guest and administrator keys.

Fig. 5 - on an enlarged scale, the support plate for lever springs.

Fig. 6 is an approximate electrical diagram for turning off, for example, an air conditioner.

The drawings show. Door 1, door jamb 2, lock body 3 installed in door 1. The lock body contains a bolt plate 4, equipped with a comb 5, a locking post 6 and a bolt 7. The lock body contains cylindrical posts 8 and 9. The bolt plate 4 has a groove , which slides along the cylindrical post 8. The levers 10 (the drawing shows one lever out of six available in the lock) are equipped with grooves in which the posts 8 and 9 are placed with the possibility of vertical movement relative to the posts. The levers 10 are equipped with code protrusions 11, 12 and notches 13. The levers 10 have a spring 14, on the shank 15 which is located in the holes 16 of the support plate 17. The guide 18 for the key is equidistant from the extreme notches 13 of the lever 10. The crossbar 7 is located in the guide groove ( not indicated in the drawing) during operation it slides inside the lock body. To prevent it from falling out of the guide groove, an additional guide 19 is fixed on the inside, rectangular in shape and coaxial with the guide groove (not indicated in the drawing). The second crossbar 20, located in its guide groove (not indicated in the drawing), also slides inside the housing during operation. To prevent it from falling out of its guide groove, second additional guides 21 are installed on the inside of the body, rectangular in shape and coaxial with its guide groove (not indicated in the drawing). An electrical contact is installed inside the door jamb 2, consisting of lamellas 22, 23 and elements 25 insulated from the crossbar 7, spring-loaded 24. The crossbars 7 and 20 are made to interact with each other. The body has a stand (shown in dotted lines) under the middle of the strip 26, which has grooves 27 at the ends. The bar 26 is secured with a screw 28 with the possibility of rotation. In the grooves 27 of the strip 26 there are screws 29 screwed into the bolts 7 and 20. Moreover, the screws 29 are installed with the possibility of moving the strip 26. Step-down transformer 30. The lock is equipped with two keys. First key 31 guests. Drawn in the position where the guest inserts the key from the hallway to lock the hotel room. The second key is 32 for the hotel administrator. Drawn in a position where the administrator from the corridor will open a hotel room that is closed from the inside. The key shown in the drawing below is the key of guest 31, which will be inserted into the lock from inside the hotel room. Longitudinal protrusion 33 on the key bit.

Operation of the device when a hotel room is closed by a guest from the corridor, if the guest forgot to turn off the power supply (in figure 6 the machine is turned off).

The key 31 is inserted into the key guide 18 (see figure 1. The key is inserted from that side of the drawing). The code protrusions located closer to the crossbar 7 are made in height corresponding to the secrets on the bits of the key 31, as it is shown in the drawing. If you look from the corridor, the key can be turned clockwise two half turns. The lock will take the position in figure 2. Element 25 will move and the power supply circuit of relay P1 will break. As a result, the HO1 relay contact will open and de-energize the entire room except the refrigerator. If the air conditioner is not turned off, it will turn off.

Operation of the device when the guest enters the room.

The key 31 is inserted by the guest into the key guide 18 and rotated counterclockwise. Having made two half turns, the lock will take the position as in figure 1. Turning the key another two half turns counterclockwise will not work, since the code protrusions located further from the bolt 7 are made in height corresponding to the secrets on the bits of the key 31 when it is inserted from inside the number. Since the crossbar 7 has shifted, element 25 closes the lamellas 22, 23. Relay P1 is supplied with reduced voltage from transformer 30. The relay is activated and closes its contact NO1. Voltage is supplied to the room. The guest enters the room.

Operation of the device when closing a hotel room from the inside.

The guest inserts key 31 into guide 18 from inside the room. The key must be rotated clockwise (counterclockwise, when the lock is open, the key does not rotate). Since the code protrusions located further from the bolt 7 are made in height corresponding to the key bit 31 in the position when it is in the number. The bolt 7 is pulled into the lock. In this case, a force is applied to the bar 26 and the crossbar 20 closes the hotel room (see figure 3). The electrical contact remains closed.

The device works when a guest calls an ambulance by phone, but he himself cannot open the lock from inside the hotel room.

The administrator inserts his key 32 into the guide 18 from the corridor. The key bit is exactly the same as on key 31 when it is located inside the number. We turn the inserted key 32 out of the corridor clockwise. After making two half turns, the lock will open and take the position as in figure 1. Turning key 32 clockwise another two half turns will not work.

Thus, the above information indicates that the following set of conditions are met when using the claimed invention:

- the means embodying the claimed invention during its implementation relates to locking devices that are used for installation in the doors of hotel rooms and are intended to de-energize unswitched off electricity consumers by room guests when leaving the rented premises;

- this lock can be installed on apartment doors so as not to worry about irons not being turned off. The entire apartment is de-energized, except for the refrigerator;

- for the claimed device in the form as it is characterized in the independent claim of the stated claims, the possibility of its implementation has been confirmed using the means and methods described in the application or known before the priority date;

- the means embodying the claimed invention during its implementation is capable of achieving the technical result envisaged by the applicant.

The advantage of the invention is that in emergency cases, the police and ambulance doctors, together with the hotel administrator, will be able to open the front door of the room from the corridor using the administrator’s second key, different from the guest’s key.

Therefore, the claimed invention meets the condition of “industrial applicability”.

Claims (1)

A lock comprising a body with a guide for the key, an electrical contact installed in the door jamb, interacting with a bolt placed in a guide groove and having a bolt plate equipped with a comb and a locking post, a means for locking the bolt, including a set of spring-loaded levers with code protrusions formed by notches, for interaction with the locking post, a second bolt placed in its guide groove and a double-bit key, characterized in that additional guides are installed on the inside of the body, coaxial with the guide grooves; with the possibility of rotation, strips with grooves at the ends in which screws are placed, fixed in the crossbars, while the code protrusions in the grooves of the levers, located closer to the crossbar, correspond to the secrets on the bits of the key inserted from the corridor during its full rotation, and the code protrusions in in the notches of the levers, located further from the crossbar, correspond to the secretions on the bits of the key inserted from the number during its full rotation, and the guide for the key is equidistant from the outer notches of the levers.

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