RU2804928C2 - Lock - Google Patents

Abstract

FIELD: locks.

SUBSTANCE: present invention relates to locks installed in the entrance doors of hotel rooms, designed to turn off electrical consumers when leaving 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 a guide groove and having a bolt plate equipped with a comb, a locking post and a groove for sliding along a cylindrical guide, 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, and a double-bit key. An additional cylindrical guide is introduced into the body, placed in the groove of the crossbar plate, and an axis on which a crossbar, made in the form of a truncated gear, is mounted with the possibility of rotation, interacting with the side surface of the crossbar plate equipped with teeth. 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 to operate the control mechanism of the second bolt from the corridor in order to open the lock.

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 that interacts with a ratchet mechanism of a two-position electric switch connected to a changeover electric switch and a load in the form of room lighting lamps (see US patent 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 second administrator key, different from the guest’s key

The specified technical result is achieved by the fact that in a known lock containing a body with a guide for a 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, a locking post and a groove for sliding along a cylindrical guide, a means bolt locking, including a set of spring-loaded levers with coded protrusions formed by notches for interaction with the locking post and a double-bit key, the peculiarity is that an additional cylindrical guide is inserted into the body, placed in the groove of the bolt plate, and an axis on which, with a bolt is installed with the possibility of rotation, made in the form of a truncated gear, interacting with the side surface of the crossbar plate equipped with teeth, in addition, 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.

The invention is illustrated by drawings.

Fig. 1 - lock in the “open” position

Fig. 2 - the lock is in the “locked from inside the hotel room” position.

Fig. 3 - lock in the “closed from the corridor” position

Fig. 4 - shape of key bits for 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 groove 7 for sliding along cylindrical guides 8 and 9. The lock body contains a cylindrical guide 10 The levers 11 (the drawing shows one lever out of six available in the lock) are equipped with grooves in which cylindrical guides 8 and 10 are placed, with the possibility of vertical movement. Levers 11 are equipped with code protrusions 12, 13, 14, 15 and notches 16. Levers 11 have a spring 17 on a shank 18, which is located in the holes 19 of the support plate 20. Guide 21 (the drawing shows a guide from the corridor) for the key is equidistant from extreme notches 16 levers 11. The crossbar 22, made in the form of a truncated gear, placed in the guide groove 23 during operation rotates on an axis 24. The teeth 25 of the crossbar 22 interact with the teeth 26 located on the side surface of the crossbar plate 4. An electric is installed inside the door jamb 2 a contact consisting of lamellas 27, 28 and an element 30 insulated from the crossbar 22, spring-loaded by springs 29.

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 guest's key 31, which will be inserted into the lock from inside the hotel room. The key has a longitudinal protrusion 33 on the key bit. The code protrusions 13 correspond to the secrets on the half 34 of the key bit 31 when the key is inserted into the guide 21 for the key from the corridor. Code protrusions 12 correspond to the secrets on half 35 of the key bit. The key, when viewed from the corridor, rotates clockwise to close the room. The code protrusions 14 correspond to the secrets on the half 36 of the key 31 when it is inserted from inside the hotel room (the guide for the key is made in the lock cover, currently removed from the lock). And the code protrusions 15 correspond to the secrets on half 37 of the key 31 when it is inserted from inside the number. The key rotates clockwise to close the number.

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 21 (see figure 1. The key is inserted from that side of the drawing from the corridor). The code protrusions located closer to the crossbar 22 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 crossbar 22 will turn (see figure 3, element 30 will move and the power supply circuit of relay P1 will break. As a result, the contact of relay HO1 will open and de-energize the entire room except the refrigerator. The air conditioner that is not turned off 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 21 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 22 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 22 has turned, element 30 closes the lamellas 27, 28. Relay P1 is supplied with reduced voltage from the transformer. The relay operates 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 the key 31 into the guide 21 from inside the room, as it is drawn on the drawing. 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 22 are made in height corresponding to the key bit 31 in the position when it is in the number. The crossbar 22 takes the position as in figure 2. In this case, the crossbar 22 closes the hotel room. 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 21 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 refers 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 you don’t have to worry about irons not being turned off. The entire apartment is cut off except for the refrigerator. The only inconvenience is that if a family member was locked in the apartment with a key from the corridor, then in order to move the lock from inside the apartment from the position as in figure 3 to the position as in figure 1, an additional key is needed.

- 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 a 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, a locking post and a groove for sliding along a cylindrical guide, 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, and a double-bit key, characterized in that an additional cylindrical guide placed in the groove of the bolt plate, and an axis on which a bolt made in the form of a truncated gear is installed with the possibility of rotation, is inserted into the body, interacting with the side surface of the crossbar plate, equipped with teeth; in addition, the code protrusions in the notches of the levers, located closer to the crossbar, correspond to the secretions on the bits of the key inserted from the corridor during its full rotation, and the code protrusions in the notches of the levers, located further from the crossbar, correspond 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.

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