Ring clip padlock

Abstract

A ring shackle padlock comprises a ring shackle that rotates between a closed and an open position and a combination locking mechanism to lock or unlock the ring shackle in the closed position. The combination locking mechanism has several rotating code rings for setting a numerical code and a bolt that is pre-tensioned to a locked position. The ring shackle is released to the open position when a code is set on the code rings. Conversely, the bolt is locked in the locked position, and the ring shackle is thus locked, when no code is set on the code rings. Furthermore, a code ring blocking device is provided to prevent the code rings from rotating when the ring shackle is in the open position.

Description

[0001] The invention relates to a ring-shackle padlock comprising a ring shackle rotatable about a ring-shackle pivot axis between a closed and an open position, and a combination locking mechanism configured to selectively lock the ring shackle in the closed position or to release it for rotation from the closed to the open position. The combination locking mechanism includes several manually rotatable code rings about a code ring pivot axis for setting a numerical code, and a bolt pre-tensioned to a locking position. The bolt can be moved along a bolt axis from the locking position to an unlocking position when a numerical code corresponding to a secret code is set on the code rings, and the ring shackle is released for rotation to the open position when the secret code is set.However, the bolt positioned in the locking position is locked in the locking position if a numerical code is set on the code rings which differs from the key secret, whereby the ring bar positioned in the closed position is locked against rotation into the open position by the bolt locked in the locking position.

[0002] Such ring-shackle padlocks can, for example, have a lock body with a radially inward-facing indentation relative to the ring-shackle's axis of rotation. The ring-shackle engages this indentation in the closed position and remains open in the open position. In the open position of the ring-shackle, an object to be secured can be inserted into the indentation. The object can then be enclosed within the indentation by moving the ring-shackle into the closed position, thus securely connecting it to the ring-shackle padlock. For instance, the ring-shackle, in the open position, can be guided through the eye of a hasp and moved into the closed position. This allows the eye to be enclosed within the indentation, and the hasp can be secured against unauthorized opening by locking the ring-shackle in the closed position.In particular, ring shackle padlocks can be used to secure appropriately designed doors, for example, to prevent unauthorized access to lockers or garden sheds. A special feature of most ring shackle padlocks is that the shackle is largely enclosed by the lock housing, except for the portion that passes through the recess, thus protecting it from unauthorized access. This allows ring shackle padlocks to offer reliable protection against break-in attempts.

[0003] Furthermore, the ring-shackle padlock of the type described herein features a combination locking mechanism, enabling convenient operation of the padlock since no key is required and therefore does not need to be carried. Instead, the ring shackle can be easily released into the open position by adjusting the combination, thus opening the padlock. Conversely, after moving the ring shackle to the closed position, it can be securely locked by simply adjusting the combination on the code rings to secure an object.

[0004] Furthermore, by pre-tensioning the bolt into the locking position, an automatic function can be provided, so that the bolt can immediately move into the locking position as a result of a movement of the ring shackle into the closed position, in order to lock the bolt in the locking position and lock the ring shackle in the closed position by subsequently adjusting the key secret and setting a numerical code that differs from the key secret.

[0005] However, with such ring-shackle padlocks, a problem arises: the code rings can be accidentally rotated when the ring shackle is in the open position. This can change the lock code originally set for moving the ring shackle to the open position, allowing a different code to be entered. This can prevent the bolt from moving from the open to the closed position, or from moving into the locked position once the lock is reached. As a result, the bolt might not be able to move the ring shackle when attempting to close it, or it might not engage the locked position when the lock is reached.Therefore, unintentional rotation of the code rings while the ring bar is in the open position can potentially damage the combination locking mechanism and / or the ring bar itself if sufficient force is applied to the ring bar to move it, which is not designed for rotation, into the closed position. Furthermore, after the ring bar is rotated into the closed position, the code rings may become twisted, creating the impression that the ring bar is locked, even though the bolt could not have engaged due to the previously unintentionally altered key combination.

[0006] Therefore, it is an object of the invention to create a ring-shackle padlock with a combination locking mechanism that counteracts such misuse.

[0007] This problem is solved by a ring-shackle padlock with the features of claim 1.

[0008] The ring shackle padlock includes a code ring blocking device designed to block the code rings against rotation around the code ring axis when the ring shackle is in the open position.

[0009] By incorporating a code ring blocking device into the ring shackle padlock, unintentional rotation of the code rings when the shackle is in the open position can be prevented. This prevents the key combination set on the code rings for moving the shackle to the open position from being unintentionally changed. This ensures that the key combination is correctly set on the code rings when the ring shackle padlock is subsequently operated to move the shackle to the closed position, so that the shackle is released for movement into the closed position and / or the bolt is not locked against any movement between the locked and unlocked positions that might be necessary for this movement.

[0010] In particular, when the ring shackle is in the closed position, the bolt can engage in a locking notch formed on the ring shackle and assume the locked position, so that the bolt can be locked in the locked position by setting a numerical code that differs from the key secret, and thus prevented from being released from the locking notch. Therefore, the ring shackle can also be locked against rotation from the closed position, and especially against rotation into the open position, by locking the bolt in the locked position, since the bolt must be forced out of the locking notch for this to occur.If, however, the code rings are set to the key secret, the bolt can be moved against the preload from the locked position and, in particular, all the way to the unlocked position, so that the bolt can be forced out of the locking notch and the ring shackle can be turned into the open position. For example, the bolt, which is released for movement from the locked position, can be forced out of the locking notch by moving the ring shackle towards the open position.

[0011] Therefore, the bolt's movement may require the key combination to be set on the code rings. If, for example, the key combination on the code rings is unintentionally changed while the bolt is in the open position, the bolt could be blocked against any movement necessary to release the bolt for rotation into the closed position. This could result in the bolt being unintentionally locked even in the open position. Furthermore, the bolt might allow rotation of the bolt, but upon reaching the closed position, it could be blocked against movement into the locked position, potentially preventing locking in the closed position.

[0012] By providing the code ring blocking device, rotation of the code rings can be blocked when the ring bar is in the open position, in order to address the problems described above and to prevent any incorrect operation due to unintentional rotation of the code rings. In this respect, the bolt, when the ring bar is in the open position, can be allowed to move between the locked and unlocked positions until the key secret is deliberately changed by setting a different numerical code on the code rings after the ring bar has been moved to the closed position.

[0013] In general, the code ring blocking device can also be designed to allow rotation of the code rings when the ring bar is in the closed position, in order to enable selective locking or unlocking of the bolt.

[0014] For example, the code ring blocking device can comprise the ring bracket and / or blocking structures formed on the ring bracket, which – directly or indirectly – can engage the code rings when the ring bracket is closed, in order to block the code rings against rotation. Alternatively or additionally, the code ring blocking device can, for example, comprise the latch, which, when the ring bracket is in the open position, can assume a different blocking position compared to the locked position, in order to block the code rings against rotation about the code ring's axis of rotation. This will be explained in more detail below.

[0015] Furthermore, the code ring blocking device may, for example, include a blocking element which can be engaged with the code rings by rotating the ring bracket into the open position, thereby blocking rotation of the code rings. For example, such a blocking element may be pivotable or slid into engagement with the code rings by rotating the ring bracket into the open position, in order to block the code rings. For this purpose, such a blocking element may, for example, engage in engagement recesses of the code rings located between successive display sections of the code rings, each displaying a number, in order to block rotation of the code rings by engaging these recesses.

[0016] In general, the code ring locking device can be designed to block rotation of the code rings when the ring lever is in the open position, against forces applied manually during normal use, thus preventing the code rings from being rotated by such forces when the ring lever is in the open position. However, it can also be designed to make rotation of the code rings when the ring lever is in the open position sufficiently difficult, at least to prevent unintentional rotation, by requiring a (generally) deliberate force to rotate the code rings due to the code ring locking device.

[0017] Further embodiments are explained in the dependent claims and the description, as well as with reference to the drawings.

[0018] In some embodiments, the locking axis can correspond to the code ring rotation axis or be aligned parallel to the code ring rotation axis.

[0019] Furthermore, in some embodiments, the code rings can be arranged around the bolt and / or mounted on the bolt. In particular, in such embodiments, the code rings can be rotatable around the bolt.

[0020] The bolt can be moved between the locked and unlocked positions, particularly through the code rings surrounding the bolt. Such an arrangement allows the bolt to interact with the code rings to lock the bolt in the locked position or to release it for movement into the unlocked position by adjusting the key code. Furthermore, such a direct arrangement of the code rings on the bolt can also enable it to interact with the code rings to block their rotation when the bolt is in the open position, as explained in more detail below with reference to corresponding embodiments.

[0021] In some embodiments, the bolt can assume a blocking position along its axis when the ring bar is in the open position, and a locking position when the ring bar is in the closed position. The blocking position of the bolt differs from the locking position in terms of its positioning along the bolt axis. Furthermore, the bolt can be designed to prevent rotation of the code rings in the blocking position.

[0022] In particular, the bolt can rest against the ring arm both when it is in the open position and when it is in the closed position, so that movement of the bolt into the locking position due to the bolt's preload is stopped by the ring arm, and the respective position assumed by the bolt can be determined by the shape of the ring arm. Since the bolt can assume different positions—namely the blocking position on the one hand and the locking position on the other—when the ring arm is in the open position and when it is in the closed position, the bolt can therefore be positioned differently depending on the rotational position of the ring arm along the bolt axis.Furthermore, as already mentioned, the bolt can be surrounded, in particular, by the code rings, so that, depending on the bolt's position along its axis, locking elements formed on the bolt can engage with corresponding structures on the code rings, thereby blocking or releasing rotation of the code rings. In particular, in such embodiments, the bolt can therefore be understood as a component of the code ring locking device, in that rotation of the code rings can be blocked by the bolt when the bolt assumes the blocking position.

[0023] In some embodiments, the bolt in the locking position may be positioned further in the direction of movement of the bolt from the unlocking position to the locking position than in the blocking position, or vice versa.

[0024] In particular, the blocking position can therefore, compared to the locking position, represent, for example, a position of reduced engagement of the bolt in the ring bracket or a position of greater engagement of the bolt in the ring bracket. In some embodiments, it may therefore be provided that, when the bolt is positioned further in the direction of movement compared to the locking position, blocking elements formed on the bolt engage with corresponding blocking structures of the code rings, or conversely, that such blocking elements engage with the blocking structures when the bolt is positioned less far in the direction of movement, in order to block the code rings against rotation in the respective blocking position, which differs from the locking position.

[0025] In some designs, the locking position may correspond to the unlocking position.

[0026] In particular, the unlocked position can be the end position of the bolt's movement during the actuation of the ring-shackle padlock to move the ring shackle between the closed and open positions, which is the opposite of the locked position. Specifically, it can be provided that the bolt assumes the unlocked position when the ring shackle is in the open position and, in the unlocked position, blocks any rotation of the code rings. For this purpose, the bolt, in the open position of the shackle, can, for example, bear against a shackle curve of constant diameter, which may, for instance, have a circular cross-section, and be forced into the unlocked position by this bearing against the preload.

[0027] In some embodiments, the bolt can engage in a locking notch on the ring yoke when the ring yoke is open, thus assuming the blocking position. Furthermore, in such embodiments, the bolt can engage in a locking notch formed on the ring yoke when the ring yoke is closed, thus assuming the locking position, whereby the locking notch may be deeper than the locking notch, or vice versa.

[0028] In particular, due to the preload, the bolt can engage in the locking position, depending on the rotational position of the ring shackle (closed or open), in the respective notch – i.e., the locking notch or the safety notch – and rest against the bottom of the respective notch, so that the depth of the respective notch ultimately determines the position of the ring shackle relative to the bolt axis. Since the depths of the safety notch and the locking notch can differ, the bolt can thus be positioned in different positions depending on whether the ring shackle is in the open or closed position, namely in the blocking position or the locking position.This can allow the bolt to block rotation of the code rings in the blocking position and with the ring bar in the open position, but to release them in the locking position and with the ring bar in the closed position.

[0029] While the locking notch thus allows the blocking position to be defined as a position of the bolt that differs from the locking position, the engagement of the bolt in the locking notch when the ring bar is in the open position also ensures that the ring bar is held against an unwanted or unintentional rotation into the closed position, since for this the bolt must be forced out of the locking notch against the preload and a corresponding force must be applied.

[0030] Furthermore, in such embodiments, the blocking position can differ from the unlocking position, which is an end position of the bolt's movement, in that the bolt in the blocking position can be moved further towards the locking position than in the unlocking position. Therefore, in some embodiments, the blocking position can lie between the locking position and the unlocking position.

[0031] In some embodiments, the ring bracket can form a bracket curve of constant diameter between the locking notch and the safety notch, along which the bolt can slide from the open position to the closed position when the ring bracket is moved.

[0032] In particular, in such embodiments, the bolt can, upon reaching the open position, engage directly in the locking notch due to the preload, and upon reaching the closed position, directly in the locking notch, thereby achieving the desired securing of the ring shackle in the open or closed position, and, in particular, enabling the ring shackle to be selectively locked in the closed position by adjusting the key code on the code rings. The locking notch and the locking notch can, in particular, be represented by respective recesses opposite the shackle curve.

[0033] In some embodiments, the bolt resting against the shackle curve can assume the unlocked position. In particular, the bolt can thus be pushed further out of the locking position during sliding along the shackle curve than in the locking position and / or in the blocking position, with the unlocked position forming an end position of the bolt's movement during rotation of the ring shackle between the open and closed positions.

[0034] In some embodiments, as an alternative to the ring shackle having a locking notch, the bolt may rest against the shackle curve in the open position, without a locking notch on the ring shackle. In such embodiments, the bolt can assume the unlocking position when the ring shackle is in the open position, and the locking position can correspond to the unlocking position. This also allows the bolt to be positioned in a different position than the locking position—in this case, the unlocking position—when the ring shackle is in the open position, thus enabling it to interact with the code rings and secure them against rotation.

[0035] The bracket curve can, as an alternative or in addition to a design with a constant diameter, run in a circular arc, particularly on an inner side facing the ring bracket, so that the ring bracket can always have an identical distance to the ring bracket rotation axis at the bracket curve.

[0036] In some embodiments, when the key code is set on the code rings, the bolt can be forced out of the locking notch by rotating the ring shackle towards the open position against the preload. Therefore, moving the ring shackle into the open position may require, in particular, that the bolt be moved out of the locking notch. However, this is only possible when the key code is set, as otherwise the bolt may be locked in the locked position and thus prevented from moving out of the locking notch.If, however, the locking mechanism is set and the bolt is released for movement towards the unlocking position, the bolt can be forced out of the locking notch by turning the ring bar, whereby the bolt and the locking notch may, for example, have cooperating displacement ramps in order to deflect a rotation of the ring bar into a movement of the bolt along the bolt axis.

[0037] In some embodiments, the bolt may have locking projections associated with the code rings, the code rings of which may have release recesses. When the code ring's key code is set, the release recesses may be aligned with the locking projections, and the locking projections may be able to pass through the release recesses when the bolt moves from the locked to the unlocked position. Furthermore, the code rings may each have a blocking surface that encloses the release recess circumferentially with respect to the code ring's axis of rotation. When the code code is not set, at least one of the blocking surfaces is aligned with the associated blocking projection, thereby preventing the bolt from moving into the unlocked position.

[0038] In particular, the release recesses or the blocking surfaces (depending on the set numerical code) can be aligned with the locking projections relative to the bolt axis, so that if a blocking surface is aligned with a locking projection, the respective locking projection abuts the blocking surface and the blocking surface can prevent the bolt from moving into the unlocked position. If, on the other hand, the key secret is set on the code rings, the release recesses of the code rings can be aligned with the respective associated blocking projection, so that the bolt can be moved from the locked position to the unlocked position, whereby the blocking projections can be guided through the release recesses during this movement of the bolt.In particular, the blocking protrusions can be arranged one behind the other along the bolt axis, so that the release recesses can also be arranged in a row one behind the other by setting the locking secret on the code rings.

[0039] The blocking protrusions can be located at least partially within the respective assigned release recess when the bolt is in the blocking position and / or when the ring bar is in the closed position, whereby rotation of the code rings can be blocked when the bolt is in the blocking position or when the ring bar is in the closed position by abutting a respective lateral boundary of the respective release recess against an assigned blocking protrusion.

[0040] As previously explained, the bolt in the blocking position can be offset along the bolt axis, particularly relative to the locking position. This offset arrangement of the bolt means that, in the blocking position, the blocking protrusions can be at least partially positioned within their respective release recesses, and / or project into and / or engage with their respective release recesses. Therefore, when attempting to rotate the code rings, the lateral boundaries of the release recesses can abut the corresponding blocking protrusions, especially their side surfaces.This engagement of the blocking protrusions in the release recesses thus makes it possible to block the code rings against rotation when the ring bar is positioned in the open position, since by rotating the ring bar into the open position the bolt is forced into the blocking position and the blocking protrusions can be placed in the release recesses to block the code rings.

[0041] In such embodiments, the bolt, the ring bracket or its locking notch, a spring that exerts the preload on the bolt, the blocking projections and the release recesses can therefore be understood as components of the code ring blocking device.

[0042] In some embodiments, the code rings can surround the bolt in a sleeve-like manner and have a sleeve section along the bolt axis adjoining the locking surfaces, wherein the locking projections of the bolt can be arranged within the sleeve section of the respective code ring in the locking position, and wherein the respective code ring can be rotatable about the bolt when the locking projection is arranged in the sleeve section.

[0043] In particular, the sleeve sections of the code rings can have an inner diameter that is larger than the inner diameter of a section of the code rings enclosed by the blocking surfaces, so that the code rings can be rotatable around the bolt without striking the blocking projections when blocking projections are arranged in the sleeve sections.

[0044] The bolt may further comprise a bolt body extending along the bolt axis, from which the locking projections may rise. Furthermore, the clear width of the sleeve section may be at least twice the bolt height in a cross-sectional plane perpendicular to the bolt axis, where the bolt height may correspond to a distance from the coding ring's axis of rotation to a vertex of a locking projection lying in the cross-sectional plane.

[0045] Furthermore, in such embodiments, the bolt axis can be aligned with the code ring's axis of rotation, allowing the bolt to be positioned on the code ring's axis of rotation. By selecting the clear width of the sleeve section relative to the bolt height as described above, it can be ensured that the code rings can rotate freely around the bolt when blocking ridges are positioned within the sleeve section.

[0046] In some embodiments, the bolt body can be formed by a rod, particularly one with a round cross-section, wherein the bolt can have an engagement section adjoining the bolt body for engaging the ring bracket. For example, the engagement section can have respective displacement ramps to allow the bolt to be displaced from the locked position to the unlocked position when the ring bracket moves between the open and closed positions.

[0047] In some embodiments, the code rings may have a respective marking ring and a respective coupling ring, which are rotationally fixed to each other, wherein the marking ring may bear numbers to represent the numerical code and wherein the coupling ring may have the release recesses and the locking surfaces.

[0048] Therefore, in such embodiments, the code rings can ultimately be multi-part (in particular, two-part), with the identification rings being used, in particular, to display the respective set numerical code, while the coupling rings can be provided for selectively locking or releasing the bolt and thus the ring lever. However, due to the rotationally fixed coupling between the identification rings and the coupling rings, a rotation of an identification ring for setting the numerical code can be directly transferred to the associated coupling ring, in order to achieve, in particular, the correct alignment of the release recesses and / or the locking surfaces.

[0049] In some embodiments, the bolt can be pre-tensioned into the locking position by a spring, wherein the spring can be supported on a coupling ring facing the locking position with respect to the bolt axis, and wherein the coupling rings can be pre-tensioned into the rotationally fixed coupling by the spring.

[0050] In such embodiments, the spring required to pre-tension the bolt in the locking position can thus be cleverly used to additionally pre-tension the coupling rings into the rotationally fixed connection to the marking rings. Therefore, a separate pre-tensioning device for pre-tensioning the coupling rings can be dispensed with.

[0051] In addition, in some embodiments the coupling rings can be supported against each other, so that all coupling rings can be pre-tensioned by the spring into the rotationally fixed coupling to the respective assigned marking ring.

[0052] The coupling ring facing the locking position can in particular be a coupling ring facing an engagement section of the bolt with which the bolt engages in the ring bracket.

[0053] In some embodiments, the bolt can be formed as a single piece. In particular, the bolt in such embodiments can thus differ from bolts that drive an additional blocking element, for example a ball, to engage the ball with a locking notch in the ring yoke, thereby locking the ring yoke in the closed position. In particular, the bolt can therefore be rigid and not include any elements that are movable relative to each other.

[0054] In some embodiments, the ring-shackle padlock may have a key secret changing device designed to transfer the code rings into a key secret changing state in which the rotationally fixed coupling between the marking rings and the coupling rings is released and in which the marking rings are rotatable relative to the coupling rings for setting a changed key secret.

[0055] In the key code change state, the identification rings can be rotated without this rotation being transferred to the coupling rings. This allows a different numerical code to be set by rotating the identification rings, starting from the last set key code. When the identification rings are then returned to their rotationally fixed coupling with the coupling rings, this numerical code, which differs from the last set key code, becomes the new key code. This is because the coupling rings are now positioned so that the release recesses are aligned with the locking projections of the bolt. Therefore, the two-part design of the code rings, consisting of a coupling ring and an identification ring, ultimately allows for the selection and setting of a suitable key code and / or the selective modification of a key code.

[0056] In some embodiments, the locking secret changing device can be designed to displace the coupling rings along the bolt axis relative to the marking rings and thereby release the rotationally fixed coupling between the marking rings and the coupling rings.

[0057] In particular, the locking mechanism can be configured to displace the coupling rings relative to the marking rings in the direction of the locking position, thereby releasing the rotationally fixed coupling. This can occur, in particular, against a preload of the coupling rings opposite to the locking position, especially in embodiments where the coupling rings are preloaded by a spring into a rotationally fixed coupling, which simultaneously preloads the bolt into the locking position.

[0058] Furthermore, it can be provided that the locking mechanism for changing the lock secret is blocked when the ring shackle is in the closed position. In particular, this can prevent unintentional changes to the lock secret when the ring shackle is in the closed position and the ring shackle padlock is used to secure an object. Instead, in such embodiments, changing the lock secret can only be permitted when the ring shackle is moved from the closed position and, in particular, positioned in the open position. However, such movement or positioning of the ring shackle requires setting a currently valid lock secret, so that the lock secret can only be changed by persons who possess the currently valid lock secret and are therefore authorized to do so.

[0059] In some embodiments, the code rings can be accessible for manual rotation on the front of the shackle padlock, and a manually operated handle can be provided for moving the shackle from the closed to the open position (or vice versa). This handle can be located on the front of the shackle padlock. In particular, the handle can be located on the same side of the shackle padlock housing where the code rings are accessible for manual rotation to set the combination. This arrangement of the handle can differ from that of embodiments where the handle is accessible laterally and thus represents a lateral extension of the shackle padlock, especially radially with respect to the shackle's axis of rotation.

[0060] In some embodiments, the handle may have a pin aligned parallel to the pivot axis of the ring shackle, which protrudes through a guide recess formed on the front of the ring shackle padlock.

[0061] In particular, the pin can therefore form a connection between the ring shackle and an area located outside a lock housing, on which the guide recess can be formed, so that the handle can be accessible outside the lock housing, while the ring shackle can be enclosed by the lock housing and protected from external access. The guide recess, on the other hand, can allow the handle to move, thereby enabling the ring shackle to be moved between the closed and open positions. In particular, the guide recess can be slot-shaped and extend along the ring shackle and / or along its circumference.

[0062] In some embodiments, the pin may be welded to the ring bracket. In other embodiments, the ring bracket may have a pin receptacle, in particular a bore, into which the pin is inserted and / or pressed. In some embodiments, a pin arranged in such a pin receptacle may also be additionally welded in place.

[0063] In some embodiments, a contact element, particularly one that is essentially cylindrical, can be mounted on the pin, wherein the contact element is accessible at the front for manual actuation and wherein movement of the contact element can be transmitted via the pin to the ring shackle. In particular, such a contact element can extend laterally (especially on both sides) over the aforementioned guide recess in order to achieve reliable guidance of the handle at the front of the ring shackle padlock.

[0064] In some embodiments, the ring-shackle padlock may have a lock housing with a radially inward-facing indentation relative to the ring-shackle pivot axis, which the ring-shackle passes through in the closed position and releases in the open position.

[0065] Furthermore, in some embodiments, the lock housing can be designed in two parts, consisting of a front and a rear housing. The front housing may have a recess through which the code rings are accessible. Conversely, the rear housing may be closed in the area of ​​the code rings and / or access to the code rings may be blocked by the rear housing at the back of the ring shackle padlock. The rear housing may, for example, have an opening through which the aforementioned actuating element of the key secret change device is accessible.

[0066] The invention is explained below by way of example using a specific embodiment with reference to the drawings.

[0067] They show: Figs. 1A and 1Beine show a view of the front of a ring shackle padlock with the ring shackle in the closed position and with the ring shackle in the open position, respectively. Fig. 2 shows a view of the back of the ring shackle padlock with the ring shackle in the closed position. Fig. 3 shows a representation of the ring shackle padlock with the front part of the lock housing removed. Figs. 4A and 4Beine show the ring shackle and a combination locking mechanism for selectively locking the ring shackle in the closed position or releasing the ring shackle for movement into the open position. Figs. 5A and 5Beine show the combination locking mechanism and the ring shackle with the ring shackle in the open position and the bolt of the combination locking mechanism in a blocking position, respectively, a cross-sectional view of the aforementioned configuration.Figs. 6A and 6B are respective exploded views of the combination locking mechanism, Figs. 7A and 7B are perspective views and a front view of code rings of the combination locking mechanism, comprising a coupling ring and an identification ring, and Fig. 8 is a perspective view of a coupling ring.

[0068] Fig. 1A shows a ring-shackle padlock 11, which has a pivot axis C around a ring-shackle pivot axis (cf. Fig. 2 ) rotatable ring clasp 17 and a combination locking mechanism 19, by means of which the ring clasp 17 can be selectively locked in a Fig. 1A The illustrated closed position G is locked or for movement into a Fig. 1B The illustrated disclosure O can be released.

[0069] How Fig. 1A As shown, a lock body 13 or a lock housing 15 of the ring-shackle padlock 11 has a radially inwardly projecting inward with respect to the ring-shackle pivot axis C, which the ring-shackle 17 passes through in the closed position G, but leaves open in the open position O. This makes it possible, with the ring-shackle 17 positioned in the open position O, to insert an object to be secured into the indentation 75 and to secure it to the ring-shackle padlock 11 by moving the ring-shackle 17 into the closed position G.

[0070] Furthermore, the ring shackle 17 is completely enclosed by the lock housing 15 in the open position O and, in the closed position G, except for a portion of the ring shackle 17 that passes through the indentation 75, thus securing it against external access, so that the ring shackle padlock 11 can offer reliable protection against forced entry. To enable the ring shackle 17 and the components of the combination locking mechanism 19 to be inserted into the lock housing 15, the lock housing 15 is designed in two parts and has a front housing part 95 and a rear housing part 93, which are shell-shaped. The ring shackle 17 and the other components to be arranged in the lock housing 15 can therefore, for example, first be inserted into the rear housing part 93, in order to then weld the rear housing part 93 and the front housing part 95 together and close the lock housing 15 (see also Fig. 3 ).

[0071] In order to selectively lock the ring shackle 17 in the closed position G or to allow movement into the open position O, the combination locking mechanism 19 comprises several code rings 25 arranged in a housing recess 97 on a front face 21 of the ring shackle padlock 11. These code rings are accessible for rotation about a code ring pivot axis D, and a numerical code Z can be manually set on the code rings. In particular, the ring shackle 17 can be released for movement into the open position O by appropriately rotating the code rings 25 to set a numerical code Z corresponding to a secret Z1, as shown in Fig. 1B as shown. However, by setting a numerical code Z that differs from the key secret Z1, the ring shackle 17 can be locked in the closed position G, as explained in more detail below. Even though the figures do not show different numerical codes Z set on the code rings 25, the person skilled in the art understands that a numerical code Z that differs from the sequence of numbers shown in the figures can be set by rotating the code rings 25.

[0072] With regard to locking the ring yoke 17 in the closed position G, it follows in particular from the Fig. 3 , 4A und 4B It is shown that the combination locking mechanism 19 further comprises a bolt 45 which is biased into a locking position V by a spring 29. When the ring shackle 17 is in the closed position G, the bolt 45 assumes the locking position V and engages in a locking notch 51 formed on the ring shackle 17. As will be explained in more detail below, the bolt 45 is locked against movement from the locking position V by the code rings 25 if a numerical code Z is set on the code rings 25 that does not correspond to the key secret Z1 and thus differs from the key secret Z1. Therefore, if the key secret Z1 is not set, the bolt 45 is locked against movement from the locking notch 51, and the ring shackle 17 is thereby locked against rotation from the closed position G to the open position O.

[0073] If, however, the locking code Z1 is set on the code rings 25, the bolt 45 can be forced out of the locking notch 51 by rotating the ring yoke 17 in the direction of the open position O and brought into contact with a cam 79 of the ring yoke 17, along which the bolt 45 slides during further rotation of the ring yoke 17 in the direction of the open position O. In this respect, with the locking code Z1 set, the bolt 45 can be forced back along a bolt axis R, which corresponds to the code ring rotation axis D, by moving the ring yoke 17 against the preload exerted by the spring 29, and assumes an unlocked position E while in contact with the cam 79 (see also Fig. 5A ).

[0074] While the ring bracket 17 has a constant diameter along the bracket curve 79 and is shaped like a circular arc, in particular Fig. 4B , that the ring bracket 17 has, in addition to the locking notch 51, a safety notch 53 into which the bolt 45 engages in the locking position V due to the preload as soon as the ring bracket 17 reaches the open position O (cf. Fig. 5A ). This intervention allows the ring clasp 17 to be held in the open position O, in particular against unwanted rotations in the direction of the closed position G.

[0075] However, in the open position O of the ring yoke 17, the bolt 45 does not again assume the locking position V, but rather a blocking position F that differs from it with respect to its positioning along the bolt axis R. In particular, in the illustrated embodiment, the blocking position F represents a position of less engagement of the bolt 45 in the ring yoke 17, since the locking notch 53 is less deep than the locking notch 51. As explained in more detail below, the locking notch 53 thus forms part of a code ring blocking device 77 to prevent unintentional rotation of the code rings 25 in the open position O of the ring yoke 17.

[0076] Furthermore, the bar is 45, as is particularly evident from Fig. 6A As can be seen, in the illustrated embodiment, the bolt is formed in one piece and has a bolt body 47 designed as a rod 85, to which a rigidly connected engagement section 43 is attached. In the closed position G of the ring shackle 17, the bolt 45 engages in the locking notch 51, and in the open position O of the ring shackle 17, it engages in the safety notch 53, thus securing the ring shackle 17 in the respective position. The engagement section 43 is designed with chamfers to assist in displacing the bolt 45 from the locking notch 51 or the safety notch 53 when the ring shackle 17 is driven to move between the open position O and the closed position G.

[0077] In order to rotate the ring bracket 17 between the closed position G and the open position O, or to drive it to corresponding rotations, a handle 69 is connected to the ring bracket 17, which has a feature such as the Fig. 1A und 1B The contact section 73 is accessible from the front 21. It is connected to a pin 71, which is attached to and, in particular, welded to the ring yoke 17. The pin 71 is aligned parallel to the code ring's axis of rotation D and extends through a slot-like guide recess 89 formed in the front part 95 of the housing, so that the ring yoke 17, located inside the lock housing 15, can be driven by the handle 69 and its contact section 73, which is located outside the lock housing 15 and accessible from the front 21. Furthermore, the contact section 73 is essentially cylindrical and covers the guide recess 89 on both sides to ensure secure guidance during the movement of the ring yoke 17.

[0078] As already mentioned, the bolt 45 can be locked against movement from the locked position V towards the unlocked position E by setting a numerical code Z that differs from the key combination Z1. However, by setting the key combination Z1 on the code rings 25, it can be released for movement into the unlocked position E and thus forcing it out of the locking notch 51 of the ring shackle 17. The interaction between the code rings 25 and the bolt 45 is described below, in particular with reference to the Fig. 6A bis 8 further explained.

[0079] First, the Fig. 6A und 6B The locking bar 45 is provided with locking projections 49 corresponding to the code rings 25, the locking projection 49 facing the engagement section 43 being partially obscured by the spring 29 in the figures. Furthermore, the code rings 25 are formed in two parts and comprise a respective marking ring 55 and a respective coupling ring 57, with numbers for setting the numerical code Z being displayed on the marking rings 55.The coupling rings 57 have several coupling extensions 59 aligned axially with respect to the code ring's axis of rotation D, and the identification rings 55 comprise several coupling recesses 61 also aligned axially. During the basic use of the ring-shackle padlock 11, the coupling extensions 59 engage in the coupling recesses 61 to lock or release the ring shackle 17, so that the identification rings 55 and the coupling rings 57 are in a rotationally fixed coupling with respect to rotations about the code ring's axis of rotation D. Therefore, when the identification rings 55 rotate about the code ring's axis of rotation D, the coupling rings 57 can be carried along and rotated as well. Furthermore, the following are shown in particular: Fig. 7A und 7B , that the marking rings 55 have respective engagement recesses 91 formed to facilitate the turning of the code rings 25.

[0080] While the identification rings 55 are primarily intended to represent a respective numerical code Z and, in particular, the key secret Z1, the coupling rings 57 serve for direct interaction with the bolt 45 in order to selectively lock the bolt 45 in the locking position V or to release it for movement into the unlocking position E. For this purpose, the coupling rings 57, as in particular the Fig. 7B und 8 Each coupling ring 57 has a release recess 63, which is enclosed in a circumferential direction with respect to the code ring's axis of rotation D by a blocking surface 65, such that the blocking surfaces 65 form lateral boundaries 67 of the release recesses 63. Furthermore, each coupling ring 57 has an opening 87 through which the bolt body 47, designed as a rod 85, is guided, so that the coupling rings 57 and, above them, the code rings 25 are arranged surrounding the bolt 45 and are supported on the bolt 45.

[0081] The interaction between the bolt 45 and the code rings 25 is further accomplished such that the release recesses 63 can be aligned with the respective blocking projections 49 of the bolt 45 by setting the key code Z1 on the code rings 25 or the identification rings 55, so that the release recesses 63 are arranged one behind the other, particularly along the bolt axis R, when the key code Z1 is set. This alignment of the release recesses 63 allows the blocking projections 49, which are arranged one behind the other along the bolt axis R, to pass through release recesses 63 of the respective associated coupling rings 57, thereby enabling the bolt 45 to be moved into the unlocked position E.

[0082] If, however, the key code Z1 is not set as a numerical code Z on the code rings 25, at least one release recess 63 of a coupling ring 57 is rotated relative to the associated blocking projection 49 of the bolt 45, so that instead the respective blocking surface 65 of the coupling ring 57 is aligned with the blocking projection 49. Therefore, when attempting to move the bolt 45 into the unlocked position E, and in particular to push it out of the locking notch 51 of the ring shackle 17, the blocking projection 49 strikes the respective blocking surface 65, so that if the key code Z1 is not set, the bolt 45 is locked in the locked position V, and the ring shackle 17 is locked in the closed position G by the engagement of the bolt 45 in the locking notch 51.

[0083] Therefore, with the described ring-shackle padlock 11, it is necessary to set the key combination Z1 on the code rings 25 so that the bolt 45 can move between the locking position V and the unlocking position E and the ring shackle 17 can be moved to the open position O. However, if the ring shackle 17 is in the open position O, the key combination Z1 must remain set so that, upon subsequent movement of the ring shackle 17, the bolt 45 is released to move from the blocking position F to the unlocking position E and – upon reaching the closed position G – to the locking position V.

[0084] With conventional ring-shackle padlocks, a common problem is that unintentional rotations of the code rings 25, when the ring shackle 17 is in the open position O, can lead to an alteration of the key code Z1. This can prevent the ring shackle 17 from being turned into the closed position G as desired, thus limiting the functionality of the ring-shackle padlock 11. Furthermore, applying significant force to the ring shackle 17 when the key code Z1 has been inadvertently changed can potentially damage the ring shackle 17 and / or the combination locking mechanism 19.

[0085] To address this problem, the embodiment of the ring-shackle padlock 11 disclosed here incorporates a code ring blocking device 77, which is designed to block rotation of the code rings 25 when the ring shackle 17 is in the open position O, in order to prevent the unintentional and unintended alteration of the key secret Z1 described above. The operation of the code ring blocking device 77 is explained in more detail below.

[0086] As already mentioned, the bolt 45 engages the locking notch 53 with its engagement section 43 in the open position O of the ring yoke 17. However, this engagement in the locking notch 53 is less deep than the engagement in the locking notch 51, so that the bolt 45 is positioned in the blocking position F, which differs from the locking position V, when the ring yoke 17 is in the open position O (and not in the closed position G). This also means, however, that the bolt 45, and thus its blocking projections 49, are positioned less far towards the locking position V or towards the preload exerted on the bolt 45 by the spring 29 when the ring yoke 17 is in the open position O than when the ring yoke 17 is in the closed position G.

[0087] As can be seen in particular from the cross-sectional view of the Fig. 5B As can be seen, when the ring bracket 17 is in the open position O, the bolt 45 can be positioned such that, due to the shallower engagement in the ring bracket 17 compared to the locked position V, the locking projections 49 are at least partially located within the release recess 63 of the respective associated coupling ring 57. This arrangement of the locking projections in the release recesses 63 results in the coupling rings 57, which are rotationally fixed to the respective associated marking rings 55, abutting the locking projections 49 with the lateral limits 67 of the release recess 63 when an attempt is made to rotate about the code ring's axis of rotation D.If a rotation is thus transferred to the code rings 25 – possibly unconsciously and unintentionally – this rotation can be prevented by the limiting 67 of the release recesses 63 striking the blocking projections 49 of the bolt 45, so that it can be ensured that the locking secret Z1 is not changed when the ring bar 17 is positioned in the open position O and that no numerical code Z different from the locking secret Z1 can be set.

[0088] By securing the set locking secret Z1, it can ultimately be achieved that the bolt 45, upon a subsequent movement of the ring bar 17 from the open position O to the closed position G, is released for movement between the unlocking position E and the locking position V, so that the ring bar 17 is properly moved into the closed position G and the bolt 17 can engage in the locking notch 51 when the closed position G is reached.

[0089] To allow, however, the locking code Z1 to be set selectively, or a different numerical code Z to be set for locking the ring shackle 17, when the bolt 45 is in the locking position V and thus the ring shackle 17 is in the closed position G, the coupling rings 57 have a sleeve section 81 adjoining the blocking surfaces 65 with respect to the bolt axis R, wherein the blocking projections 49 are positioned within the sleeve section 81 in the locking position V. The sleeve sections 81 have a larger inner diameter than the opening 87 of the coupling rings 57, so that the coupling rings 57 can rotate freely about the code ring axis D when the blocking projections 49 are positioned in the sleeve sections 81.In particular, the sleeve section 81 is dimensioned such that a clear width W of the sleeve section 81 corresponds to at least twice a bolt height 83, which corresponds to a distance of the code ring pivot axis D or the bolt axis R to a vertex of a respective blocking elevation 49, as shown by the . Fig. 5B and 7A This illustrates the point.

[0090] Since, due to the engagement depth of the bolt 17 in the ring bracket 17 defined by the locking notch 53 in the open position O, the locking projections 49 engage in the associated release recesses 63 of the coupling rings 57, the locking notch 53, the locking projections 49, the spring 29 which biases the bolt 17 into the locking position V, and the release recesses 63 of the coupling rings 57 (or the coupling rings 57 and the ring bracket 17 together) can be understood as components of the code ring locking device 77.

[0091] Furthermore, the ring-shackle padlock 11 of the illustrated embodiment has a locking secret changing device 27 accessible on a rear side 23 of the ring-shackle padlock 11 and consequently on an outer side 31, which is opposite the front side 21 of the ring-shackle padlock 11, by which the locking secret Z1 can be changed selectively. As shown in particular Fig. 2 As shown, the key secret changing device 27 in the illustrated embodiment comprises an actuating element 33 accessible at the rear 23 and thus at the rear of the housing 93, which, for example, has a slot 37 into which a screwdriver (not shown in the figures) or a coin can be inserted to rotate the actuating element 33 and thus actuate the key secret changing device 27. In particular, it can be provided that by such actuation of the key secret changing device 27 the code rings 25 can be brought into a key secret changing state in which the key secret Z1 can be changed.

[0092] While a locking secret change device 27 generally makes it possible to change the locking secret Z1 optionally and, for example, to choose a desired locking secret Z1, the problem arises when providing such a locking secret change device 27 that unauthorized persons could also operate the locking secret change device 27 and change the locking secret Z1, so that actually authorized persons could no longer operate the ring shackle padlock 11 due to the changed locking secret, which is unknown to these persons.

[0093] This problem is also addressed in the ring-shackle padlock 11 according to the embodiment illustrated in the figures, whereby the locking mechanism 27 is prevented from being operated when the ring shackle 17 is in the closed position G. In the illustrated embodiment, the locking mechanism 27 can only be operated when the ring shackle 17 is in the open position O.

[0094] Since moving the ring shackle 17 to the open position O requires that the currently valid key code Z1 is set on the code rings 25, the key code Z1 (at least starting from the closed position G of the ring shackle with the key code Z1 changed) can only be changed by persons who know the currently valid key code Z1. In particular, locking the key code change device 27 prevents unauthorized changes to the key code Z1 when the ring shackle 17 is locked in the closed position G, thus preventing authorized persons from unlocking the ring shackle 17 through such manipulation.

[0095] In order to be able to transfer the code rings 25 into the lock secret change state, the lock secret change device 27, as in particular Fig. 6B The aforementioned actuating element 33 is shown, which moves from an initial state A to a state in Fig. 6B The actuating element 33, illustrated by the dashed lines, can be rotated into the actuating state B. The actuating element 33 has an eccentric 35 which, when the actuating element 33 is rotated into the actuating position B, contacts the coupling rings 57 and, contrary to the preload exerted by the spring 29, moves them into the rotationally fixed coupling with the marking rings 55, thereby releasing the rotationally fixed coupling. In particular, by actuating the actuating element 33, the coupling extensions 59 of the coupling rings 57 can be disengaged from the respective coupling recesses 61 of the marking rings 55, so that the marking rings 55 are rotatable relative to the coupling rings 57 in the lock secret change state.Since the coupling rings 57 are not moved along with the identification rings 55 during such a rotation, the release recesses 63 remain aligned in a row with each other and in line with the respective blocking projections 49, so that after the identification rings 55 are subsequently brought into engagement with the coupling rings 57, the now set numerical code Z forms the (in particular, changed) key secret Z1. Furthermore, after the coupling rings 57 have been moved and thus in the key secret change state, the release recesses 63 are arranged around the respective associated blocking projection 49 of the bolt 45, so that rotation of the coupling rings 57 relative to the bolt 45 is blocked.

[0096] However, as particularly from Fig. 3 As can be seen, the actuating element 33 has a locking lever 39 projecting radially with respect to the rotation of the actuating element 33 between the initial position A and the actuating position B. When the ring bar 17 is positioned in the closed position G, this locking lever abuts the ring bar 17, and in particular a locking section 99 of the ring bar 17, during rotation of the actuating element 33 towards the actuating position B, thus blocking the rotation of the actuating element 33 into the actuating position B. This blocking of the actuating element 33 ensures that the key secret changing device 27 cannot be actuated when the ring bar 17 is in the closed position G, and that the actuating element 33 cannot be rotated into the actuating position B. Consequently, the coupling rings 57 cannot be disengaged from the marking ring 55, and the code rings 25 cannot be switched to the code changing state.Therefore, the locking secret Z1 cannot be changed when the ring shackle 17 is in the closed position G.

[0097] In contrast, in addition to the aforementioned locking notch 51 and the safety notch 53, a rotary recess 41 is formed on the ring bracket 17 as a release section 101, which, as Fig. 5A As illustrated, with the ring bracket 17 positioned in the open position O, the locking lever 39 can be inserted into the rotary recess 41 while the actuating element 33 is being rotated into the actuating position B. Therefore, with the ring bracket 17 in the open position O, the actuating element 33 can be rotated into the actuating position B, as shown in Fig. 5A as also illustrated by dashed lines. Since actuating the actuating element 33 requires moving the ring lever 17 into the open position O, the locking secret Z1 can only be changed when the ring lever 17 is positioned in the open position O, thus preventing any incorrect operation or manipulation when the ring lever 17 is in the closed position G, which could unintentionally change the locking secret Z1. Bezugszeichenliste

[0098] 11 Ring shackle padlock 13 Lock body 15 Lock housing 17 Ring shackle 19 Combination locking mechanism 21 Front 23 Back 25 Code ring 27 Key secret change device 29 Spring 31 Exterior 33 Actuating element 35 Eccentric 37 Slot 39 Locking lever 41 Rotary recess 43 Engagement section 45 Bolt 47 Bolt base body 49 Blocking riser 51 Locking notch 53 Safety notch 55 Identification ring 57 Coupling ring 59 Coupling extension 61 Coupling recess 63 Release recess 65 Blocking surface 67 Lateral limit 69 Handle 71 Pin 73 Contact element 75 Indentation 77 Code ring blocking device 79 Shackle curve 81 Sleeve section 83 Bolt height 85 Rod 87 Opening 89 Guide recess 91 Engagement recess 93 Housing rear 95 Housing front 97 Housing recess 99 Locking section 101 Release section A Starting position B Actuating position C Ring bolt pivot axis D Coder ring pivot axis E Unlocking position F Blocking position G Closed position O Open position R Bolt axis V Locking positionWlichte Weite ZZahlencode Z1Schließgeheimt

Claims

1. A ring shackle padlock (11) comprising a ring shackle (17) rotatable about a ring shackle pivot axis (C) between a closed position (G) and an open position (O) and a combination locking mechanism (19) configured to selectively lock the ring shackle (17) in the closed position (G) or to release it for rotation from the closed position (G) to the open position (O), wherein the combination locking mechanism (19) has several manually rotatable code rings (25) about a code ring pivot axis (D) for setting a numerical code (Z) and a bolt (45) biased into a locking position (V), wherein the bolt (45) is movable along a bolt axis (R) from the locking position (V) to an unlocking position (E) when a numerical code (Z) corresponding to a secret code (Z1) is set on the code rings (25).wherein the ring bar (17) is released for rotation into the open position (O) when the key secret (Z1) is set, and wherein the bolt (45) positioned in the locking position (V) is locked in the locking position (V) when a numerical code (Z) is set on the code rings (25) which differs from the key secret (Z1), wherein the ring bar (17) positioned in the closed position (G) is locked against rotation into the open position (O) by the bolt (45) locked in the locking position (V), further comprising a code ring blocking device (77) which is configured to block the code rings (25) against rotation about the code ring axis of rotation (D) when the ring bar (17) is positioned in the open position (O).

2. Ring shackle padlock (11) according to claim 1, wherein the bolt axis (R) corresponds to the code ring rotation axis (D) or is aligned parallel to the code ring rotation axis (D); and / or wherein the code rings (25) are arranged surrounding the bolt (45) and / or are mounted on the bolt (45).

3. Ring shackle padlock (11) according to claim 1 or 2, wherein the bolt (45) assumes a blocking position (F) along the bolt axis (R) when the ring shackle (17) is positioned in the open position (O) and the locking position (V) when the ring shackle (17) is positioned in the closed position (G), wherein the blocking position (F) of the bolt (45) differs from the locking position (V) with respect to its positioning along the bolt axis (R), wherein the bolt (45) is designed to block a rotation of the code rings (25) in the blocking position (F).

4. Ring shackle padlock (11) according to claim 3, wherein the bolt (45) in the locking position (V) is positioned further in the direction of a movement direction of the bolt (45) pointing from the unlocking position (E) to the locking position (V) than in the blocking position (F), or vice versa.

5. Ring shackle padlock (11) according to claim 3 or 4, wherein the blocking position (F) corresponds to the unlocking position (E) or wherein the bolt (45) is positioned in the blocking position (F) between the locking position (V) and the unlocking position (E).

6. Ring shackle padlock (11) according to one of claims 3 to 5, wherein the bolt (45) in the open position (O) of the ring shackle (17) engages in a locking notch (53) of the ring shackle (17) and assumes the blocking position (F), wherein the bolt (45) in the closed position (G) of the ring shackle (17) engages in a locking notch (51) formed on the ring shackle (17) and assumes the locking position (V), wherein the locking notch (51) is formed deeper than the locking notch (53), or vice versa, in particular wherein the bolt (45) can be forced out of the locking notch (51) against the preload by rotating the ring shackle (17) in the direction of the open position (O).

7. Ring shackle padlock (11) according to claim 6, wherein the ring shackle (17) forms a shackle curve (79) of constant diameter between the locking notch (51) and the safety notch (53), along which the bolt (45) slides from the open position (O) to the closed position (G) when the ring shackle (17) is moved, wherein the bolt (45) bearing against the shackle curve (79) in particular assumes the unlocking position (E).

8. Ring shackle padlock (11) according to one of the preceding claims, wherein the bolt (45) has blocking projections (49) assigned to the code rings (25), wherein the code rings (25) have release recesses (63), wherein the release recesses (63) are aligned with the blocking projections (49) when the key secret (Z1) is set on the code rings (25), wherein the blocking projections (49) can be passed through the release recesses (63) when the bolt (45) moves from the locking position (V) to the unlocking position (E), and wherein the code rings (25) have a blocking surface (65) that encloses the release recess (63) in the circumferential direction with respect to the code ring axis of rotation (D).where, if the locking secrecy (Z1) is not set, at least one of the blocking surfaces (65) is aligned in line with the associated blocking elevation (49) and movement of the bolt (45) into the unlocking position (E) is thereby blocked.

9. Ring shackle padlock (11) according to claim 8, wherein the blocking projections (49) are at least partially arranged within the respective associated release recess (63) when the ring shackle (17) is positioned in the open position (O), wherein a rotation of the code rings (25) is blocked when the ring shackle (17) is positioned in the open position (O) by abutting a respective lateral limit (67) of the respective release recess (63) against the associated blocking projection (49).

10. Ring-shackle padlock (11) according to claim 8 or 9, wherein the code rings (25) surround the bolt (45) in a sleeve-like manner and have a sleeve section (81) adjoining the blocking surfaces (65) along the bolt axis (R), wherein the blocking projections (49) of the bolt (45) are arranged within the sleeve section (81) of the respective code ring (25) in the locking position (V), wherein the respective code ring (25) is rotatable about the bolt (45) when the blocking projection (49) is positioned in the sleeve section (81).

11. Ring shackle padlock (11) according to claim 10, wherein the bolt (45) has a bolt base body (47) extending along the bolt axis (R), from which the blocking projections (49) rise, wherein a clear width (W) of the sleeve section (81) is at least twice a bolt height (83) of the bolt (45) in a cross-sectional plane perpendicular to the bolt axis (R), wherein the bolt height (83) corresponds to a distance from the code ring rotation axis (D) to a vertex of a blocking projection (49) lying in the cross-sectional plane, in particular wherein the bolt base body (47) is formed by a rod (85), in particular round in cross-section, and wherein the bolt (45) has an engagement section (43) adjoining the bolt base body (47) for engaging the ring shackle (17).

12. Ring shackle padlock (11) according to one of claims 8 to 11, wherein the code rings (25) each have an identification ring (55) and a coupling ring (57) which are rotationally fixedly coupled to each other, wherein the identification ring (55) bears numbers to represent the numerical code (Z) and wherein the coupling ring (57) has the release recesses (63) and the locking surfaces (65), in particular wherein the bolt (45) is biased into the locking position (V) by a spring (29), wherein the spring (29) is supported on a coupling ring (57) facing the locking position (V) with respect to the bolt axis (R), wherein the coupling rings (57) are biased into the rotationally fixed coupling by the spring (29);and / or In particular wherein the ring-shackle padlock (11) has a key secret changing device (27) which is configured to transfer the code rings (25) into a key secret changing state in which the rotationally fixed coupling between the marking rings (55) and the coupling rings (57) is released and the marking rings (55) are rotatable relative to the coupling rings (57) for setting a changed key secret (Z1).

13. Ring shackle padlock (11) according to one of the preceding claims, wherein the ring shackle padlock (11) has a lock body (13) with a radially inwardly directed inward in relation to the ring shackle pivot axis (C), which the ring shackle (17) passes through in the closed position (G) and releases in the open position (O); and / or wherein the bolt (45) is formed in one piece.

14. Ring shackle padlock (11) according to one of the preceding claims, wherein the code rings (25) are accessible for manual rotation on a front side (21) of the ring shackle padlock (11) and wherein a manually operable handle (69) is provided for driving the ring shackle (17) from the closed position (G) to the open position (O), wherein the handle (69) is arranged on the front side (21) of the ring shackle padlock (11); 15. Ring shackle padlock (11) according to claim 14, wherein the handle (69) has a pin (71) aligned parallel to the ring shackle pivot axis (C), which projects through a guide recess (89) formed on the front (21) of the ring shackle padlock (11) on a lock housing (15) of the ring shackle padlock (11), in particular wherein the pin (71) is welded to the ring shackle (17) and / or in particular wherein a contact element (73), in particular substantially cylindrical, is placed on the pin (71), wherein the contact element (73) is accessible at the front (21) for manual actuation and wherein a movement of the contact element (73) via the pin (71) can be transmitted to the ring shackle (17).

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