Electronic recodeable lock

• US 4,519,228 A
• Filed: 03/24/1982
• Issued: 05/28/1985
• Est. Priority Date: 04/01/1981
• Status: Expired due to Fees

• Current Assignee: Trioving A/S
• Original Assignee: Trioving A/S
• Inventors: Sornes, Tor
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/361,343
• Time in Patent Office: 1,161 Days
• Field of Search: 70/263, 70/264, 70/276, 70/277, 70/278, 361/269, 340/825.31, 235/382.5
• US Class Current: 70/276
• CPC Class Codes: E05B 49/006 actuating opto-electronic devices
• CPC Class Codes: Y10T 70/7057 Permanent magnet
• CPC Class Codes: Y10T 70/7073 Including use of a key

Abstract

The publication relates to a lock system of the type which may be activated and/or recoded by means of a preferably plate formed key and/or recoding unit. The publication relates also to a method for recoding such system and to a key member for recoding the system. The lock system comprises a reading unit reading the code on the key and/or recoding unit, a unit comparing and memorizing the detected code and means for activating the mechanical parts of the lock thereby suspending its locking effect. The purpose of the system is to enable recoding of lock independent of a priority determined sequence of codes on the key and without being dependent of a centrally arranged memorizing unit, memorizing the various codes in sequence. The proposed effects are achieved by including a code section on the key member on to which a recoding command may be recorded. The recoding command is recorded on the key member in a central unit where a correct command for the lock in question is recorded on the recoding section of the key.

Claims

1. Method for recoding a lock of the type comprising a housing that includes a reading unit and a memory for recording codes for the lock, the lock being actuated by a preferably plate-formed key member containing a key code, the key member having thereon a recoding section on to which informations may be recorded and having a correct command for changing the code of the lock recorded on the recoding section, the method which comprises the steps of recoding said lock by inserting the key member into a slot in the lock, reading the key command for changing the code of the lock in said reading unit and storing the code of the inserted key member in said memory and removing the recording command from the key member upon removing the key member from the lock.

2. A lock assembly positioned in a closure adapted to be recorded and activated by means of a plate-like key and recoding member comprising means for reading a code on the key member, unit means for comparing and memorizing the code read by said reading means and means for actuating the mechanical locking parts of the lock, whereby the lock may be recoded by inserting the key member containing a recoding command into the lock which the unit means recognize and means for removing the recoding command from said key member subsequent to reading the code of the key and subsequent to recoding of the lock.

3. A lock as claimed in claim 2, which includes means responsive to said key member for suspending the removal of the recoding command.