WO2019221680A2

WO2019221680A2 - Plate-reinforced lock cylinder

Info

Publication number: WO2019221680A2
Application number: PCT/TR2018/050752
Authority: WO
Inventors: Muzaffer OZBELLI; Mustafa KALKAN
Original assignee: Allegion Emniyet ve Guvenlik Sistemleri AS
Current assignee: Allegion Emniyet ve Guvenlik Sistemleri AS
Priority date: 2017-11-30
Filing date: 2018-11-30
Publication date: 2019-11-21
Anticipated expiration: 2020-05-30
Also published as: WO2019221680A3; TR201719248A1

Abstract

The present invention essentially relates to a barrel unit (1), which is provided in mortise locks with cylinders and is used to reduce the deformation caused by the pins (P), and which comprises at least one cylinder body (2) including a pin slot (21), in which the spring pins (P) that fit to the key recesses are inserted, and a rotor slot (22), into which a rotor (R) that can rotate with the key inside can be disposed; at least one reinforcement slot (3) which is in the form of a recess located on the rotor slot (22) wall of the cylinder body (2); at least one plate (4) used by being placed into the reinforcement slot (3).

Description

PLATE-REINFORCED LOCK CYLINDER

Field of the Invention

The present invention relates to a plate-reinforced lock cylinder, which is provided as a reinforcement to the cylinder body in mortise locks with cylinder that can be used in all doors, and which reduces deformation.

Background of the Invention

Door systems are provided, which are passed through when entering or exiting a place, and which have opening and closing arrangements. There are lock systems which are used to keep the doors closed and to open them when desired. Mortise locks with cylinders are comprised of a key, rotary cylinder and spring pins. In the vertical direction, a bottom pin, password pin and spring are provided in alignment. When the correct key is inserted in the lock, the pins pushed by the springs move up and down by means of the notches on the key. When the key is fully inserted into the lock, the junction points of the lower and password pins are aligned and the inner cylinder block (rotor) can rotate easily within the main body (cylinder body) and thus the lock can be switched to open or closed position. The cylinder body is usually in the form of a profile and is produced from brass or similar materials by machining. In addition, zinc alloy (zamak) injection versions of the cylinder body are also available. Zinc alloy materials are preferred because they are both low-cost and lightweight.

Especially with the cylinder body produced from a zinc alloy material, the useful life of the cylinder body is reduced and the slots in which the pin moves continuously get deformed and thus lose their functions. In particular, the wear occurring on the Pin/Tube transition surfaces depending on the number of uses, reduces the combination of encryption and reduces the level of security. In case of these technical problems, the lock body is completely changed or the lock is completely replaced.

Turkish utility model no. TR201006551, an application in the state of the art, relates to the rim lock cylinder at the outer iron doors, and the barrel at the central part of the rim door lock is made of a zinc alloy material. In the said document, wear occurs in particular at the pin entry/exit parts and adverse conditions occur in the useful life and security level of the lock.

United States patent document no. US4760722, an application in the state of the art, discloses a cylinder lock mechanism wherein the pin and the plate work together. In the said document, a plate is incorporated to the lower base part of the spring pin. However, since the incorporated plate is not located at the pin entry and exit parts, deformation occurs at these regions.

Problems Solved by the Invention

The objective of the present invention is to provide a plate-reinforced lock cylinder, which is used for the purpose of preventing wear and prolonging the useful life of the locks in particular in the case of the bodies made of zinc alloy material.

Another objective of the present invention is to provide a plate-reinforced lock cylinder which is low-cost and can be used in both the rim lock and euro lock cylinders.

A further objective of the present invention is to provide a plate-reinforced lock cylinder wherein the disadvantages of the use of a zinc alloy material are eliminated.

Detailed Description of the Invention The plate-reinforced lock cylinder developed to fulfill the objective of the present invention is illustrated in the accompanying figures wherein,

Figure 1. is a front exploded perspective view of the plate-reinforced lock cylinder of the present invention.

Figure 2. is a front exploded perspective view of the use of plate-reinforced lock cylinder of the present invention in double- sided locks.

Figure 3. is a front sectional detail view of the plate -reinforced lock cylinder of the present invention.

The components in the figures are each given reference numbers as follows:

1. Barrel unit

2. Cylinder body

21. Pin slot

22. Rotor slot

3. Reinforcement slot

4. Plate

R. Rotor (tube)

P. Pin

A. Lower pin

B. Password pin The barrel unit (1) of the present invention, which is provided in mortise locks with cylinders, and which reduces the deformation caused by the pins (P), comprises

- at least one cylinder body (2) including a pin slot (21), in which the spring pins (P) that fit to the key recesses are inserted, and a rotor slot (22), into which a rotor (R) that can rotate with the key inside can be disposed, - at least one reinforcement slot (3) which is in the form of a recess located on the rotor slot (22) wall of the cylinder body (2),

- at least one plate (4) which is used by being inserted into the reinforcement slot (3) and which prevents or reduces the deformation that occurs during exit of the pins (P).

The barrel unit (1) of the present invention is comprised of a cylinder body (2), which is used upon being fixed inside the door locks, and in which the rotor (R) that is rotatable upon proper alignment of the key and the pins (P) for locking and opening the door is placed; and a plate (4), which is inserted into the reinforcement slot (2) provided on the inner wall of the cylinder body (2) facing the rotor (R). Spring and lower pin (A) are inserted into the pin slots (21) in the cylinder body (2), and the pins (P) can move back and forth upon alignment of the lower pin (A) and the password pin (B). The friction, which occurs at the end parts of the pin slot (21) during the reciprocating movement of the lower pin (A) from inside the pin slot (21) on the cylinder body (2) into the rotor (R), acts on the plate (4), and thus the useful life of the lock is increased with the plate (4) produced from a durable material (rigid/resistant material) against friction. In addition, in case the plate (4) gets damaged as a result of the friction, only the plate (4) can be replaced thereby eliminating the requirement of replacing the entire the cylinder body (2).

The cylinder body (2) of the present invention can be in the form of a cylinder or a keyhole, and is used by disposing a rotor member (tube) (R) into the hole shaped rotor slot (22) provided in the center thereof. The pins (P) and the spring are placed in the pin slot (21) which is provided on the rotor slot (22). The reinforcement slot (3) is in the form of a recess on the part of the pin slots (21) opening to the rotor slot (22). The reinforcement plate (4) is placed on the recess shaped reinforcement slot (3) and together with the reinforcement plate (4), the rotor (R) is placed into the cylinder body (2). In one embodiment of the invention, the size of the plate (4) and the size of the recess-shaped reinforcement slot (3) are the same or very close. This way, the plate (4) can be mounted to the reinforcement plate (4) by interference fit.

In one embodiment of the invention, the plate (4) has an inclined form such that it will not impede rotation of the rotor (R). In another embodiment of the invention, the center part of the plate (4) is in the form of a circular cavity.

In one embodiment of the invention, there are provided through holes on the plate (4) through which the pins (P) pass to the rotor (R). The said through holes are in alignment with the pin slots (21).

In one embodiment of the invention, a cylinder body (2) is provided on both sides of the double-sided lock systems and a plate (4) is located in the cylinder body (2).

In one embodiment of the invention, the cylinder body (2) is made of zinc alloy material. Zinc alloy material provides advantages over the other materials in terms of both cost and weight.

In one embodiment of the invention, the plate (4) is made of brass material.

In one embodiment of the invention, the plate (4) is made of aluminum material.

In one embodiment of the invention, the plate (4) is made of steel material.

In one embodiment of the invention, the plate (4) is fixed on the cylinder body (2) via a connecting member (pin, screw, etc.).

Claims

1. A barrel unit (1), which is provided in mortise locks with cylinders, and which is used to reduce the deformation caused by the pins (P), comprising

- at least one cylinder body (2) including a pin slot (21), in which the spring pins (P) that fit to the key recesses are inserted, and a rotor slot (22), into which a rotor (R) that can rotate with the key inside can be disposed, and characterized by

- at least one reinforcement slot (3) which is in the form of a recess located on the rotor slot (22) wall of the cylinder body (2),

- at least one plate (4) used by being placed into the reinforcement slot (3).

2. A barrel unit (1) according to Claim 1, comprising at least one plate (4), which is used by being inserted into the reinforcement slot (3) and which is made of a rigid/resistant material that prevents the deformation that occurs during exit of the pins (P).

3. A barrel unit (1) according to Claim 1, comprising the cylinder body (2) which is made of zinc alloy material.

4. A barrel unit (1) according to Claim 1, comprising the plate (4) which is made of brass material.

5. A barrel unit (1) according to Claim 1, comprising the plate (4) which is made of aluminum material.

6. A barrel unit (1) according to Claim 1, comprising the plate (4) which is made of steel material.

7. A barrel unit (1) according to Claim 1, comprising the plate (4) whose size is the same as the size of the reinforcement slot (3) or has tolerance differences.

8. A barrel unit (1) according to Claim 1, comprising the plate (4) which has an inclined form such that it will not impede rotation of the rotor (R).

9. A barrel unit (1) according to Claim 1, comprising the plate (4) whose center part is in the form of a circular cavity.

10. A barrel unit (1) according to Claim 1, comprising through holes which are provided on the plate (4) and through which the pins (P) pass onto the rotor (R).

11. A barrel unit (1) according to Claim 1, comprising the plate (4) which is fixed on the cylinder body (2) via a connecting member.

12. A barrel unit (1) according to Claim 1, comprising the cylinder body (2) which is provided on both sides of the double-sided lock systems and the plate (4) provided in the cylinder body (2).