EP1256675A1 - Padlock comprising a cylinderlock of the european type - Google Patents

Abstract

This padlock comprises a body made up of two assembled parts (1, 19) in which is formed an elongated space intended to receive the half-barrel (15) and at least one passage (8, 9, 20, 21) for an element of lockable closure (12) extending parallel to the longitudinal dimension of the space. According to the invention, the parts (1, 19) of the body can be assembled according to a joint plane which extends transversely to the longitudinal dimension of the elongated space, if necessary with the interposition of at least one wedge (26) placed between the parts (1, 19) of the body, depending on the length of said half-barrel (15). The padlock can thus receive half-barrels of different lengths, the wedges (26) serving as adaptation elements. <IMAGE>

Description

The present invention relates to a padlock designed to receive a half-barrel European type.

In locksmithing, European type barrels are very frequently used, including in the padlocks in which it is usual to apply them in the form of half-barrels, i.e. barrels in which the key can only be inserted in one end (front).

In the locksmithing trade, it is known that almost 90% of barrels and European type half barrels are made with dimensional characteristics falling within fairly well defined ranges. Regarding the half-barrel, it this is notably a part of the overall length of the barrel which is in the grade majority of cases between 40 and 50 mm and on the other hand, the angle made by the bit with the plane of symmetry of the half-barrel when the key is removed, angle which is generally located in a range having a maximum value of 45 ° on either side of this plane of symmetry.

Padlocks fitted with a European half-barrel currently on the market are designed to receive only half-barrels with the two parameters mentioned above, length and angle of bit, are linked to the structure of the padlock, so that a half-barrel having another dimension cannot be incorporated into it. It is including a padlock presented on page 105 of a catalog N ° 2/2000 of the Iséo Serrature SpA 25055 Pisogne, Italy.

However, there is a need for a padlock whose structure would be such that they could receive half-barrels whose two parameters mentioned above could have any values within the corresponding dimensional ranges. Under these conditions, it would then be possible to equip the padlock with half-barrels of several statistically frequent sizing and for example to exchange in a padlock half a barrel for another half barrel.

The invention aims to provide a padlock meeting this need.

The subject of the invention is therefore a padlock as defined in claim 1.

Thanks to these characteristics, the padlock can receive at the user's choice a half barrel with a length most frequently in the length range encountered on the market, either by directly assembling the two body parts, one against the other, either by providing, depending on the length of the half-barrel available, one or several wedges stacked between these two body parts.

The invention also relates to a padlock as defined in the claim 6.

Thanks to these characteristics, the padlock can receive half-barrels whose angles of deviation of the bit relative to its plane of symmetry, key removed, can be chosen at any value.

The padlock which has just been defined can also include the special features defined in the subclaims.

It can therefore be seen that the padlock according to the invention solves the problem which consists in adapting a half-barrel of European type whatever its configuration dimensional.

The invention applies in particular in the case of security installations in buildings where all locks are fitted with the same type of barrels or half-barrels from a given manufacturer. In this case, the invention allows the manager of the building to add to the installation one or more padlocks according to the invention in which it can then incorporate barrels of the same type which can be actuated by the same types of keys activating the other locks of the building according to an access hierarchy given.

• la figure 1 est une vue d'ensemble en perspective d'un cadenas réalisé selon l'invention;
• la figure 2 est une vue en perspective éclatée de ce cadenas;
• la figure 3 est une vue en coupe du cadenas des figures 1 et 2, équipé d'un demi-barillet de faible longueur;
• la figure 4 est une vue en coupe analogue, mais concernant un demi-barillet de grande longueur;
• la figure 5 est une vue en coupe selon la ligne V-V de la figure 3, le cadenas étant déverrouillé;
• la figure 6 est une vue en coupe analogue à celle de la figure 5, mais pour une configuration verrouillée du cadenas;
• la figure 7 est une vue en coupe prise selon la ligne VII-VII de la figure 4;
• la figure 8 montre une variante du cadenas selon l'invention; et
• la figure 9 est une vue en coupe de ce même cadenas.

Other characteristics and advantages of the present invention will become apparent during the description which follows, given solely by way of example and made with reference to the appended drawings in which:

• Figure 1 is an overall perspective view of a padlock made according to the invention;
• Figure 2 is an exploded perspective view of this padlock;
• Figure 3 is a sectional view of the padlock of Figures 1 and 2, equipped with a short half-barrel;
• Figure 4 is a similar sectional view, but relating to a half-barrel of great length;
• Figure 5 is a sectional view along line VV of Figure 3, the padlock being unlocked;
• Figure 6 is a sectional view similar to that of Figure 5, but for a locked configuration of the padlock;
• Figure 7 is a sectional view taken along line VII-VII of Figure 4;
• Figure 8 shows a variant of the padlock according to the invention; and
• Figure 9 is a sectional view of the same padlock.

We will first refer to Figures 1 to 3 to describe the embodiment preferred padlock according to the invention.

This padlock comprises a body 1 of quasi-ovoid section which has a base 2 and two columns 3 and 4 extending perpendicularly from one of the faces of the base 2 from the end zones of this face. These columns thus delimit between them a empty 5.

Each baluster 3 and 4 has a longitudinal groove 6, 7 with a semicircle section, the two grooves facing each other. They are extended in the base 2 by holes respectively 8 and 9 which themselves shrink near the face of the body opposite to columns 3 and 4, the transition being formed by a conical shoulder 10, 11.

A padlock handle 12 is inserted in the grooves 6, 7 and the holes 8, 9, this handle having a circular section adjusted to that of the grooves and holes.

The body 1 also has a stepped central bore 13 whose cross section presents the profile of a half European barrel. This hole 13 opens, on the side of the columns 3 and 4 in a recess 14 whose wall 14a is cylindrical.

A half-barrel of European type 15 is placed with a lateral clearance adjustment in the hole 13, the latter being closed on the side of the columns 3 and 4 by a plug 16 which is adjusted there by force. This plug 16 has internally a cavity 16a, the transverse profile is that of a European half-barrel.

Externally, the body 1 has a peripheral clearance 17 on which is fitted the skirt 18 of a hat 19, covering the body 1 on the side opposite to the balusters 3 and 4. This cap 19 has a quasi-ovoid shape like the body 1 with a section equivalent. It has two threaded blind holes 20 and 21 extending respectively in alignment with holes 8 and 9 by extending the passages they form respectively in the body 1.

The cap 19 also has a central bore 22 in extension of the bore 13 of the body 1 and in which extends part of the half-barrel 15. On the side opposite the body 1, this bore 22 has a conical inlet 23 and a shoulder 24 against which comes from inside rest an anti-piercing washer 25 made of a material extremely resistant such as carbide, this washer being also used to serve supporting the barrel 15.

In FIG. 3, it is assumed that the padlock is equipped with a half-barrel 15 of a length equivalent to the minimum value of the range of half-barrel lengths most commonly found on the market. Under these conditions, the cap 19 is attached to the body 1 so that it comes directly to bear on the latter.

On the other hand, in Figure 4, it is assumed that the padlock receives a half barrel 15A having a length equivalent to the upper value of said range. For adapt to this length, there are provided a plurality of shims 26 which are arranged one on the others in the cavity of the hat 19 delimited by the skirt 18. Each of these shims is formed by a plate of quasi-ovoid shape pierced with two holes 27, 28 intended for coincide with threaded holes 20, 21 and an opening 29 through which can extend the half-barrel 15 (see FIG. 7). Half-barrels on the market in a range of lengths increasing per millimeter, it is advantageous to provide for the padlock according to the invention a set of such plates all having a thickness of 1 mm. In this way, the user can easily adapt the length of the half-barrel himself. which it has in the padlock to be equipped by choosing the number of shims required.

The cap 19 is attached to the body 1 by means of two screws 30, 31 passed through holes 8, 9 of the body and, if necessary, through holes 27, 28 of one or several wedges 26 depending on the length of the half-barrel used, then screwed into the threaded holes 20 and 21 of the cap 19. Note that the screws 30, 31 are only accessible when the handle 12 is released from the body 1, that is to say when the padlock is open. A no one without the appropriate key can therefore separate hat 19 from body 1.

As can be seen in particular in FIG. 2, the half-barrel 15 has a known manner, of a bit 32 which can make a full turn around the axis of the cylindrical part of the body of the half-barrel, when the key (not shown) is engaged therein. In one of these positions, the bit 32 disappears in the profile of the half-barrel, its part end 32a then being placed in a notch 33 formed in the body of the half-barrel 15.

The cylindrical wall 14a (FIG. 5) of the clearance 14 has a diameter equal to circle described by the end face 32a of the bit 32 during its movement circular. To accommodate the part of the profile of the half-barrel which protrudes from the bore 13, the wall 14a of the clearance 14 is provided with a first lateral cell 14b which extends the bore 13. A second cell 14c is also provided in this wall 14a which makes communicate clearance 14 with hole 8.

The padlock according to the invention also comprises a locking ring 34. This ring has a slot 35 whose width is slightly greater than that of the part end of the bit 32. Its axial dimension is slightly less than the width of the notch 33 of the body of the half-barrel 15, while the diameter of its opening 36 is adapted to that of the section of the cylindrical part of the half-barrel 15. The surface outside of the locking ring 34 is rounded and its largest diameter is a little less than the diameter of the clearance 14.

Therefore, it is understood that this ring 34 can engage on the half-barrel 15, when the bit 32 is erased in the body of the half-barrel and that it can accompany the rotation of the bit 32, when the key is turned in the half-barrel 15. The ring has this ability to support whatever the angle from which the bit 32 when the half-barrel 15 is in the open configuration and the key can be withdrawn. The ring 34 therefore adapts to any half-barrel whatever the angle of deflection of its bit.

The ring 34 is also provided with an external notch 37 in a half-moon, the shape is adapted to that of the section of the handle 12. It will also be noted that this the latter is provided with a lateral notch 38 of a shape adapted to the periphery of the ring 34.

Figure 5 shows the padlock according to the invention in its open position. In these conditions, the notch 37 of the ring 34 is located opposite the handle 12 so that it can be removed from the padlock. The bit 32 is then moved at an angle relative to at its retracted position which can be the angle □ indicated in Figure 5. Under these conditions, the key cannot be removed from the barrel. However, this is not a problem for a convenient use of the padlock.

In Figure 6, the padlock is in its closed configuration. In this case, the ring 34 has been turned by the bit 32 actuated by the key (in the example of 90 °) with respect to the configuration of FIG. 5. The handle 12 is then blocked by the ring of blocking 34 which penetrates through a portion of its periphery into the notch 38 of this handle 12 crossing the cell 14b. In the example shown, the bit 32 is then removed from the retracted position with an angle □ less than 45 °, this angle □ having been chosen as the one corresponding to the possibility of removing the key.

Note that when the handle is removed from the padlock, the key can be turned 360 °, the locking ring 34 following the bit 32 being able to execute its movement of corresponding rotation on the same angle because it can slide over its entire stroke in the notch 33 of the half-barrel 15. Therefore, the arrangement according to the invention allows to adapt to a half-barrel having any angle of deviation between the retracted position of bit 32 and the position in which the key can be removed from the half-barrel 15.

Figures 5 and 6 in particular show that the padlock according to the invention has a protected arrangement of the means fixing the half-barrel 15 in the body 1. To this end, an orifice 39 is drilled approximately tangentially to the wall 14a of the clearance cylindrical 14. This orifice passes through the hole 9 in which the handle is positioned 12. A screw locking 40 is screwed into a threaded hole 41 provided in a well known manner in the half-barrel 15. Access to screw 40 is prohibited when the handle 12 is in place and the padlock Locked.

Figures 8 and 9 show a variant of the padlock according to the invention in the in which case a straight locking rod 12A is provided instead of the handle 12. in this case it it is only necessary to provide aligned holes on one side to accommodate a single screw attachment 30A, the rod being held at the opposite end in a branch 42 forming part of body 1A of the padlock.

Claims (14)

Padlock intended to receive a half-barrel (15) of European type comprising a padlock body produced in two assembled parts (1; 1A, 19) in which an elongated space (13, 14) intended to receive the half-barrel is provided (15), said space (13, 14) having in section a profile similar to that of the half-barrel (15) and at least one passage (8, 9, 20, 21) for a lockable closing element (12; 12A ) extending parallel to the longitudinal dimension of said space (13, 14), the latter being in communication with said passage (8, 9, 20, 21) to allow the locking of the closing element (12; 12A) under the action of the bit (32) of the half-barrel (15), when the padlock is in the closed configuration, characterized in that said parts (1; 1A, 19) of the body can be assembled according to a joint plane which extends transversely to said longitudinal dimension, if necessary with the interposition of at least one shim (26) placed between the s said parts (1; 1A, 19) of the body, depending on the length of said half-barrel (15). Padlock according to claim 1, characterized in that in one (19) of said body parts, said passage (8, 9, 20, 21) comprises a threaded part (20, 21) while in the other part ( 1; 1A) a body (10, 11) is provided transverse to said passage and in that a fixing screw (30, 31) is screwed into said threaded hole (20, 21) while resting on said shoulder (10, 11) for assembling the two parts of the body by crossing, if necessary, at least one of said shims (26). Padlock according to claim 2, characterized in that in the locked configuration, said closing element (12; 12A) is engaged in said passage (8, 9, 20, 21) on the side of said fixing screw (30, 31) . Padlock according to any one of Claims 1 to 3, characterized in that one (19) of the parts of the body has a skirt (18) which is engaged on a clearance (17) of the other part (1; 1A ) of the body and in that said shims (26) are arranged in the cavity delimited by said skirt (18). Padlock according to any one of the preceding claims, characterized in that it comprises a locking ring (34) provided with a slot (35) and engaged around the cylindrical part of said half-barrel (15), in the region in which the bit (32) of the latter can rotate, the thickness of this ring (34) being approximately equal to the width of the notch (33) provided in the half-barrel (15) for retraction of said bit (32), in that the ring (34) is designed to project into said passage (8, 9, 20, 21) to ensure the locking of said closure element (12; 12A) by entering a notch (38) provided in the latter, and in that said ring (34) also has an external notch (37) to allow the release of said closure element, when it is brought by said bit (32) to a predetermined angular position . Padlock intended to receive a half-barrel (15) of European type comprising a padlock body produced in two assembled parts (1; 1A, 19) in which an elongated space (13, 14) intended to receive the half-barrel is provided (15), said space (13, 14) having in section a profile similar to that of the half-barrel (15) and at least one passage (8, 9, 20, 21) for a lockable closing element (12; 12A ) extending parallel to the longitudinal dimension of said space (13, 14), the latter being in communication with said passage (8, 20) to allow the locking of the closing element (12; 12A) under the action of the bit (32) of the half-barrel (15), when the padlock is in the closed configuration, characterized in that it comprises a locking ring (34) provided with a slot (35) and engaged around the cylindrical part of said half barrel (15), in the area in which the bit (32) of the latter can rotate, the thickness of this ring (34) being approximately equal to the width of the notch (33) provided in the half-barrel (15) for the retraction of said bit (32), in that the ring (34) is designed to make protrusion in said passage (8, 20) to ensure the locking of said closure element (12; 12A) by entering a notch (38) provided in the latter, and in that said ring (34) also has an external notch (37) to allow the release of said closure element (12; 12A) when it is brought by said bit (32) in a predetermined angular position. Padlock according to claim 6, characterized in that the said parts (1; 1A, 19) of the body can be assembled according to a joint plane which extends transversely to the said longitudinal dimension, if necessary with the interposition of at least one wedge ( 26) placed between said parts of the body, as a function of the length of said half-barrel (15). Padlock according to claim 7, characterized in that in one (19) of said body parts, said passage (8, 9, 20, 21) comprises a threaded part (20, 21), while in the other part (1; 1A) of the body is provided a shoulder (10, 11) transverse to said passage and in that a fixing screw (30, 31) is screwed into said threaded hole (20, 21) by pressing on said shoulder for assembling the two body parts passing through, if necessary, at least one of said shims (26). Padlock according to claim 8, characterized in that in the locked configuration, said closing element (12; 12A) is engaged in said passage (8, 9, 20, 21) on the side of said fixing screw (30, 31) . Padlock according to any one of Claims 7 to 9, characterized in that one (19) of the parts of the body has a skirt (18) which is engaged on a clearance (17) of the other part (1; 1A ) of the body and in that said shims (26) are arranged in the cavity delimited by said skirt (18). Padlock according to any one of claims 1 to 10, characterized in that in the part (19) of the body receiving the front end of said half-barrel (15), said space (13, 14) is closed by an anti-washer -bore (25) provided with a slot for the passage of a key Padlock according to any one of Claims 1 to 11, characterized in that an orifice (41) is drilled in the part (1; 1A) of the body receiving the rear part of said half-barrel (15), to receive a screw blocking (40) thereof and in that this orifice crosses with said passage (9, 21) to prevent access to said screw (40), when said closure member (12; 12A) is in position lock in the padlock. Padlock according to any one of Claims 1 to 12, characterized in that it has a single passage (8, 20) and in that the said closure element (12A) is in the form of a rod. Padlock according to any one of claims 1 to 12, characterized in that it has two passages (8, 9, 20, 21) located on either side of said space (13, 14) and in that said element closure (12) is in the form of a handle.

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