FI13066Y1 - Key blank - Google Patents

Abstract

A key blank comprising a leaf (1) and an arm (2), characterized in that the arm (2) has a shape (3) arranged to pivot at least one side plate of the disc barrier cylinder lock corresponding to the key blank into a position deviating from the lock-specific standard turning angles. In addition, protection requirements 2-4.

Description

KEY THAT

FIELD OF THE INVENTION The invention relates to a key blank for a plate disadvantage cylinder lock.

BACKGROUND OF THE INVENTION A disc barrier cylinder lock is a widely used lock structure that includes a fixed outer cylinder with an inner cylinder inside. Inside the inner cylinder, a number of baffle plates are arranged as a plate package, which can be rotated from their locking positions to the opening positions by means of a lock key. Each baffle plate includes a peripheral cavity in the periphery, a keyway corresponding to the cross-sectional profile of the key forming the key channel, and a peripheral stopper which, in cooperation with the rotation of the inner cylinder, is arranged to restrict the perpendicular trajectory to a particular circular sector. In addition, the lock includes a detent rod which, in the locked position, locks the inner cylinder to the outer cylinder. With the circumferential cavities of all the baffle plates rotated at the baffle rod, the baffle rod is arranged to release the inner cylinder relative to the outer cylinder to open the lock so that the baffle rod enters the groove formed by the circumferential cavities. N Disc lock cylinder lock opening combinations are calculated in millions, but are still limited. 3 Therefore, several additional combinations have been developed ™ using I keys with different cross-sectional profiles, whereby only a certain key profile can fit in the keyhole extending through the N defective plates.

S N The keys of the different lock models use a different number of S-spaced grooves with a constant angle, which are made with key milling machines made for this purpose.

la. In this case, for example, in the ASSA Abloy key series Classic &, Exec & and Sento &, only grooves corresponding to the angles of the deflection plates 0 ”, 18 °, 36 °, 54 °, 72 ° and 90 ° are milled. Correspondingly, the grooves in the Protec® keys for milling the keys correspond to the angles of the side plates 0 °, 15 °, 30 °, 45 °, 60 °, 75 ° and 90 °. As the variations increase, the number of error openings in the locks and the keys not belonging to the locks = open the lock. As an example, the residents of an apartment building have access to the apartments in a neighboring house with their own keys. The aim is to control the fault openings of the locks with, for example, computer-based software, in which case, after the computational variations have been met, it is no longer possible to make serial changes to the locks. In this case, the only way is to replace the lock in its entirety. Renewal of the lock is a very expensive and unpredictable operation. In order to eliminate the problems, the current technology would have to increase the number of code disadvantages and replace all the machines and equipment on the market used for the production of keys with machines and equipment that could be used to produce key millings corresponding to the new disadvantages. The invention also relates to a series device for the production of side plates, which is disclosed in International Patent Application PCT / FI2014 / 050333. The compact 3-series serialization device enables the independent and fast production of deflection plates z with precise and precise machining of the grooves. a

OBJECT OF THE INVENTION = The object of the invention is to eliminate the above-mentioned drawbacks of the prior art. In particular, the invention is intended to provide a novel technique

which allows the size of the locks to be expanded and the life cycle to be extended safely without increasing the chances of fault opening.

SUMMARY OF THE INVENTION In a method of making a key for a disc deflection cylinder lock, the key is milled with standard lock angle grooves corresponding to the lock deflection plates of the lock, which turn the lock deflection plates to certain lock-specific standard turns when the key is turned in the lock. According to the invention, the key is provided with a shape which, when the key is turned in the lock, turns at least one side plate of the lock into a position deviating from its standard lock-by-lock angles in order to multiply the variations of the lock. The deviating shape is made in one application before the milling of the standard angle grooves for each lock model. In this way, the key blank is already in a different shape when the lock-specific grooves are milled into it. In another application, the shape is made simultaneously with the milling of the lock angle-specific constant angle grooves. However, this requires modifications to existing milling machines so that such a non-standard groove shape can be made. & s In the third application, the shape is made after milling the standard angle grooves. When the inventive shape in question is made at a different time than the standard angle grooves specific to the lock model, they can be made with N other milling machines or similar machines, in which case no changes need to be made to the 3 standard milling machines. 3

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Depending on the application, the shape according to the invention can be made by milling a groove in the key shank or by shaping the key shank or adding a shape to the key shank. It is essential that the shape form a groove with an angle different from the lock-specific standard angle grooves, i.e. the shape turns one or more side plates into an angle into which no groove with a constant angle can turn it. The invention relates to a key blank comprising a leaf and an arm. According to the invention, the arm comprises a shape arranged to turn at least one of the disadvantage plates of the plate deflection cylinder lock corresponding to the key blank to a position different from the lock-specific constant turning angles. The shape according to the invention can be in the serial locking area, i.e. in the milling area of the serial locking groove. The shape may also be immediately after the lifting zero region at the end of the key blank arm. Preferably, the shape of the invention has an angle of approximately half the constant milling angles. Depending on the locks, the standard milling angles are, for example, angles 0 °, 18 °, 36 °, 54 ”, 72 ° and 90 ° or angles 0 °, 15 °, 30 °, 45 °, 60 °, 75 ° and 90 °. The angle of the groove having the inventive shape does not necessarily have to be in the middle of the constant angles N. In general, in precisely manufactured plate defect cylinder locks, a difference of z degrees from constant angles is sufficient to distinguish the functions of the locks.

S = Preferably, the shape has an angle of about halfway between the constant angles. Lock-specific angle milling angles can be, for example, angles 0 °,

18 °, 36 °, 54 °, 72 ”and 90 ° or angles of 0 °, 15 °, 30 °, 45 °, 60 °, 75 ° and 90 °.

ADVANTAGES OF THE INVENTION The key blank according to the invention has significant advantages over the prior art. By means of the invention, the size of the locks can be expanded and the life cycle can be safely extended without increasing the number of fault openings. When the combinations of a certain lock have been used up, a completely new lock can be introduced, i.e. a new lock 1 in the old lock, using only one shape deviating from the standard angles in the keys. The simplest way to do this is to make such a different career in key blanks. The blank provided with such a groove can then be made with existing standard angle grooves on existing standard milling machines, which, however, do not fit into any existing locks already in use. A new lock housing with new baffles is then made by filling the inner cylinder of the lock with non-grooved baffles, turning the baffles with the new key to the opening position specified by the key, and milling the baffles into the rotated baffle, as described in more detail in the above PC patent. - Already one new groove or other shape S deviating from the standard angles doubles the number of different combinations used in the lock. When the degree angle of this career is changed and? it is still considered to deviate from the constant angles, yet another new series of combinations is obtained. Thus, for example, with E prefabricated key blanks, by changing the angle of only one K groove, the amounts of different locking combinations of the same set of locks can be multiplied safely N and with certainty. The invention even increases the security of the widely used S and old lock sets, because the keys have groove angles which cannot even be made as such with common key mills.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in detail with reference to the accompanying drawings, in which Figure 1 shows a conventional key blank, Figure 2 shows a key blank according to the invention and Figure 3 shows a key.

DETAILED DESCRIPTION OF THE INVENTION Figure 1 shows a conventional key blank comprising a leaf 1 and an arm 2. Such grooved and smooth key blanks are used by the locks in the locking industry when making keys on locks with their milling machines. Fig. 2 shows a key blank according to the invention, which also has a plate-like leaf 1 and a shank 2 with a semicircular cross-section. The angle 4 of the groove, illustrated by the broken lines at the end of the key blank €, differs from all the angles used as a barrier in the lock design corresponding to this key. & s Figure 3 shows the disadvantage grooves made in the key blank in Figure 2, ie it has the finished key. The angles of the side grooves vary on the 2 stems so that the angle of the first groove 5 is 54 ”, the angle of the second groove 6 is 0”, 3 the angle of the third groove 7 is 18 ”, S the angle of the fourth groove 8 is 36”, the angle of the fifth groove 9 is 90 ”,

the angle of the sixth groove 10 is 36 ”, the angle of the seventh groove 11 is 18”, the angle of the eighth groove 12 is 0 ”, the angle of the ninth groove 13 is 54”, the angle of the tenth groove 14 is 0 °. Lastly, before the lifting zero region 15, according to Fig. 2, a new and inventive shape 3 is already in the blank, i.e. in the embodiment shown here, a groove with an angle of about 82 ”. The angle of this groove 3 is thus such that it does not occur in any of the standard impediments of this lock model, which are thus 0 °, 18 °, 36 °, 54 °, 72 ° and 90 °. 82 ° is quite exactly in the middle of the last two, 72 ”and 90”. By doing so, a key with a deflection groove with a different angle, which thus pivotes the corresponding deflection plate of the lock, gives a completely new set of locks to use in the existing lock. All key combinations previously used in this lock can be re-used completely securely, as a new, different career makes the keys new and unique. This new and inventive groove in this application is made immediately after the lifting zero region 15 before the actual key disadvantage region. However, there is nothing to prevent you from making this new and different career in the actual handicap area, ie one of these ten handicaps.

N N Because the groove has a different angle from the conventional ones, 3 it cannot be done with existing key milling machines. Therefore, according to the invention, it has already been made before the Ek key blank. Thus, key blanks with one groove with a different angle * are delivered to the locksmith for making N keys. Once the defect grooves of the key have been milled, the defect plates of the lock can already be manufactured with the device and method according to the international patent application> PCT / FI2014 / 050333 referred to above.

la. In this way, the locksmith only needs basic deflection plates free of the grooves of the detent rod and the key blanks according to the invention provided with a different groove 3, and they can be used to create new locks and re-securely re-assemble even large locks without fear of fitting keys. However, the invention has been described by way of example with the aid of the accompanying drawings, however, various embodiments of the invention are possible within the limits defined by the protection requirements.

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Claims (4)

PROTECTIVE REQUIREMENTS Key blank comprising a blade (1) and a shaft (2), characterized in that the shaft has a shape (3) arranged to rotate at least one locking element in the locking element cylinder reading corresponding to the key blank in a position deviating from the reading model relative the standard turning angles. 2. A key subject according to protection requirement 1, characterized in that the mold (3) is within the serial reading block area, ie. within the milling area of the serial read block latch. Key blank according to protection requirement 1, characterized in that the mold (3) is immediately after the lifting zero area (15) at the end of the key blank shaft (2). 4. A key blank according to protection requirement 1, characterized in that the mold (3) has an angle (4) which is between the wide-width standard milling angles. N O N N 0 I a a R N O + N O N D