ES2664643T3 - Closing bulb with magnetic plug - Google Patents

Abstract

Locking device with a lock cylinder and a matching key, comprising a cylinder core (4) mounted in a housing cavity of a cylinder casing (1) so that it can rotate around an axis of rotation (D), in whose key channel (5) extending in the direction of the axis of rotation (D) can be inserted into a stem (7) of the key (2) that has one or more coding recesses (8) and at least one magnetic zone (6 ), at least a first core hole (9) and a first casing hole (10) arranged in a radial plane (R) that passes through the axis of rotation (D), in which holes are housed, respectively, a first core pin (11) movable in a direction transverse to the direction of the axis of rotation (D) and a corresponding housing pin (12), the first core pin (11) being able to be moved from a locked position to a position for release by scanning a coding recess associated therewith, and at least one second core bore (14) in which a second magnetic core pin (13) can be translated, which can be moved from a locked position to a locked position. release position by magnetic interaction with the at least one magnetic zone (6), characterized in that the axis (A) of the second core hole (14) is arranged in a secant plane (S) that runs transversely to the radial plane (R ) and which is offset with respect to the axis of rotation (D), the magnetic core pin (13) having a non-round cross section and positioned in a non-rotatable manner within the core bore (14) associated with it, has a surface front (15) that runs obliquely with respect to the axis (A) of said pin.

Description

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DESCRIPTION

Closing bulb with magnetic plug.

The invention concerns a closing device with a closing bulb and a conjugate key, comprising a bulb core rotatably mounted in a housing recess of a bulb housing, in whose key channel extended in the direction of the shaft A key post with one or several coding recesses and at least one magnetic area, at least one first core bore and a first bore hole disposed in a radial plane passing through the axis of rotation can be connected, in which are housed, respectively, a first core plug translatable in a direction transverse to the direction of the axis of rotation and a corresponding housing pin, the first core pin can be brought from a locked position to a release position by scanning a coding recess associated therewith, and at least a second core bore in which a second hole can be moved Magnetic core pin that can be brought from a locked position to a release position by magnetic interaction with the at least one magnetic zone.

Closing bulbs with magnetic pins are known from DE 10 2006 059 599 A1 and DE 30 16 393. Magnetic pins cooperate with magnetic zones of the key post and are brought from a locked position to a release position by magnetic attraction or magnetic repulsion. In addition to the magnetic plug pins, a closing bulb also has core pins that mechanically explore key coding recesses.

Furthermore, documents DE 43 01 705 A1 and DE 10 220 078 B3 are already known as closing bulbs with boring pins arranged in different planes.

Documents DE 698 18 428 T2 or DE 963 123 are known as closing bulbs with eraser pins requested by spring and equipped with chamfered front surfaces.

Document DE 698 18 428 T2 describes a closing device with a closing bulb and a key. The key has a longitudinal slotted groove open towards the tip of the key, into which a pin-shaped end of a traction pin can enter which can be dragged from a locked position to a release position when the key is inserted, running the axis of movement of the pull pin along the axis of rotation of the bulb core.

Document FR 975 163 describes a closing bulb with a conjugate key. The closing bulb has a magnetic complementary pin that is formed by a magnetic pin whose axis of motion is cut with the axis of rotation of the bulb core.

The invention is based on the problem of perfecting a closing bulb with both mechanical and magnetic earthing pins in an advantageous manner for use or favorable in manufacturing.

The problem is solved with the invention indicated in the claims.

The subordinate claims form advantageous refinements of the main claim. However, they also form autonomous solutions to the problem.

First and substantially, it is provided that the core bore that houses the at least one magnetic core plug is disposed in a drying plane that runs transversely to the radial plane and is offset with respect to the axis of rotation. While the mechanical action core pins move in a direction of translation that is in a plane in which the axis of rotation is also located, the magnetic eave pin moves in a plane of motion that is offset with respect to the axis of rotation. The secant plane does not pass through the center of the bulb core. Likewise, it is provided that the magnetic plug has a non-round cross-section. Its front surface which, in the release position, is located at the junction between the hole wall of the housing and the core, runs obliquely with respect to the axis of the magnetic core plug or its core bore.

A closing device according to the invention can have the following advantageous configuration features. The second housing core drill of the magnetic core plug is a blind hole closed towards the key channel. Therefore, the bottom of the second core bore is permeable to the magnetic field of the magnetic core plug or the magnetic zone of the key post. The bottom of the blind hole forms a thin layer of material that separates the core hole from the key channel. Likewise, an elastic element may be provided with which the magnetic core plug is requested in the direction of its locked position. In the locked position a blocking section adjacent to the front surface of the magnetic eraser plug penetrates an opening of the housing. The oblique front surface is then completely located within the opening of the housing. The magnetic core plug is requested in the direction of its release position by a magnetic attraction generated by the magnetic zone of the key post against

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The restoring force of the elastic element. The magnetic force is greater than the elastic force, whereby the core pin can be brought to the release position by magnetic attraction against the restoring force of the elastic element. Likewise, it can be provided that the magnetic core pin cooperates with a second housing pin requested in the direction of its locked position by a prestressed elastic element, whose housing pin can be brought to a release position by a magnetic repulsion of the Magnetic core plug produced by the magnetic zone against the restoring force of the elastic element. While in the variant described above the two magnets that form, on the one hand, the magnetic zone and produce, on the other hand, the magnetization of the core plug, have to be of the same polarity, the magnets in this embodiment they have to be of opposite polarities so that the second core pin can be brought to its release position. The magnetic force is here also greater than the force of the replacement spring. The replacement spring requests in this variant a second housing pin that is located within a housing opening. The front surface of the second housing pin is requested by the front surface of the magnetic plug. The axis along which the magnetic boring pin can be moved forms an obtuse angle in the locking position of the closing device with the axis of the second housing pin. While the axis of the magnetic core pin is located in the secant plane, the axis of the housing pin cooperating with the magnetic pin is located in a radial plane. Therefore, the axis of motion of the second housing pin passes through the axis of rotation of the bulb core. The magnetic core plug can have a reduced diameter section. This small diameter section can face the key channel and present a permanent magnet. The permanent magnet can be plugged with a polar direction oriented in the axial direction of the magnetic core plug into an opening of this core plug. The magnetic zone of the key post is formed by a permanent magnet whose polar direction runs transversely to the plane of the wide side of the key, that is, it is located in the normal to the plane. The magnetic core plug is disposed non-rotatably in its housing bore. The housing drill has a non-round cross section. An edge of the cross-section runs primarily along more than 180 degrees on a circle arc line. Forming inflection points, the edge of the cross section forms a pumped out. The pumped out forms a longitudinal recess that, forming a ridge, makes a transition to a wall section of the second core bore that runs on a circular cylindrical inner surface. The core plug has a cross-section that also has an edge section that extends over more than 180 degrees and runs on a circle arc line. A projection that forms a longitudinal nerve is projected out of this edge section. The longitudinal nerve is located in the longitudinal recess of the core hole wall. It is especially advantageous that the longitudinal nerve is flanked by protuberances on both sides. The protuberances are then in front of the aforementioned edges, whereby a rounded flank is in front of a edge. This prevents the core pin from being tipped into the hole in the hole. The protrusions extend radially into an imaginary circle in which the edge section that extends over more than 180 ° runs. A second housing pin cooperating with the magnetic plug may have a circular intermediate zone and be rotatably located in its associated housing bore. A preferred closure device may have a plurality of magnetic pins. Each magnetic plug cooperates with a magnetic zone associated with the key post. It is especially provided that the closing device has at least one magnetic pin that is brought to a magnetic repulsion release position of the magnetic zone, and that has at least one other magnetic pin that can be brought to its release position by a magnetic attraction generated by the magnetic zone of the key post. The housing opening in which the magnetic plug penetrates into its locked position or in which a second housing pin cooperating with the magnetic plug is located may be formed by an insert plate. If the closing bulb has several magnetic pins, the insert plate then forms a plurality of openings. The openings may be materialized as through holes in the insert plate. The insert plate is preferably plugged into a recess in the wall of the housing housing of the bulb housing in which the core of the bulb is rotatably housed. The insert plate can be plugged into the recess from the front side of the bulb housing. The longitudinal edge sides of the recess or the longitudinal edge sides of the insert plate that extend in the axial direction of the bulb housing can extend transversely to it in the radial direction, thereby forming a structure as a whole. Dovetail and the inserted plate is thus tied in radial direction. The bottoms of the openings of the housing are formed by the bottoms of the recess.

Examples of embodiments of the invention will be explained in the following using the accompanying drawings. They show:

Figure 1, in a perspective representation, a first embodiment of the invention in the form of a double-closing bulb,

Figure 2, a conjugate key,

Fig. 3, a section according to the IM-MI line of Fig. 1 through the closing bulb to illustrate a pair of mechanical plug pins 11, 12 and a magnetic plug pin 13,

Figure 4, on an enlarged scale, fragment IV of Figure 3 with a key not plugged in,

Figure 5, a representation according to Figure 3, but with plug-in conjugate key,

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Figure 6, the enlarged fragment VI of Figure 6,

Figure 7, a representation according to Figure 6, but with a key without closing function,

Figure 8, a section according to the VIN-VIN line of Figure 5,

Figure 9, a representation according to Figure 4 for a second embodiment,

Figure 10, a representation according to Figure 6 for the second embodiment,

Figure 11, a representation according to Figure 7 for the second embodiment,

Figure 12, a perspective representation of a third embodiment of the invention, in which the wall of the housing cavity in which the bulb core 4 is arranged is shown as rotates,

Figure 13, a side view of the closing bulb shown in Figure 12,

Figure 14, the section according to line XIV-XIV of Figure 13 and

Figure 15, the section according to line XV-XV of Figure 13.

The drawings show a closing bulb having a housing 1. The housing 1 has a flange section in which several holes 10 of said housing are arranged. In each of the holes 10 of the housing, a housing plug 12 is connected which is supported against the bottom of the housing hole 10 by means of a compression spring 29.

The housing 1 of the bulb has a housing section that forms a housing recess 3 of circular cylindrical shape in which a bulb core 4 is arranged. The bulb core 4 is coupled with a closing member with which it can be operated a lock

The bulb core 4 can rotate about a rotation axis D. The rotation axis D is the central axis of the housing cavity 3.

The core 4 of the bulb has a key channel 5 that runs in the direction of the axis of rotation D and has coding ribs that penetrate the channel. A key 2 has a post 7 that has coding recesses 8. With these coding recesses 8, core pins 11 that are arranged in holes 9 of the core 4 of the bulb and each having an individual length can be carried to a release position in which the separation surface between the core plug 11 and the associated housing pin 12 is aligned with the separation joint between the core 4 of the bulb and the housing recess 3, whereby it can be done Turn the core 4 of the bulb. In addition, the seat post 7 of the key has grooves that run in the longitudinal direction and in which the ribs of the wall of the key channel 5 can fit.

The holes 9 of the core are arranged in a row one after the other and are in a common radial plane R. The radial plane R is characterized in that the axis of rotation D runs therein. The radial plane R runs through the middle plane of the key channel 5 which coincides with the middle plane of the seat post 7 of the key when said seat post 7 has been inserted into the channel 5 of the key.

In a second core hole 14 a magnetic pin 13 is housed. The magnetic pin 13 can be moved in the direction of an axis A. The axis A is the central axis of the core hole 14 that receives the magnetic pin plug 13. The translation axis of the magnetic plug pin 13 is located in a secant plane S. The secant plane S does not run through the axis of rotation D, but, at a certain distance from the axis of rotation D, is cut with the radial plane R in which the mechanical boring pins 11, 12 can be moved. Preferably, the point of intersection between the secant plane S and the radial plane R is located in a offset position in approximately half of the radius of the core 4 of the bulb with respect to to the axis of rotation D, the offset being oriented in a direction away from the mechanical eraser pins 11, 12.

The offset can be in a range between 1/4 of the radius of the core 4 of the bulb and 3/4 of the radius of said core 4 of the bulb.

The magnetic zone 6 of the key seat 7 is formed by a permanent magnet 6 which, with its polar axis arranged in the direction normal to the surface of the wide side of the key, is placed within an opening of the seat post the key.

The bore 14 of the core in which the magnetic boring pin 13 is located is a blind bore. The blind hole has a closed bottom 16, whereby the core hole 14 is spatially separated from the channel 5 of the key. The lines of the magnetic field of the magnet 6 and of a magnet 22 that is associated with the pin 13 pass through the bottom 16 of the bore 14 of the core.

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The core plug 13 has a reduced diameter section that plugs into a reduced diameter section of the core bore 14. The front side of the reduced diameter section has an opening in which the permanent magnet 22 is plugged in, which is polarized in the direction of the A axis of the magnetic plug pin 13.

On one step formed between a larger diameter section and a smaller diameter section of the core bore 14, one end of a helical compression spring is supported. The other end of the helical compression spring requests a step that is formed by a larger diameter area of the magnetic plug 13. The larger diameter area of the magnetic core plug 13 has a non-round cross-section and a front surface 15 that runs obliquely. The oblique face of the front surface 15 may be a plane. However, the oblique front surface 15 can also run with a slight pumping.

Block sections 18, 18 'that are formed by the peripheral wall of the core plug 13 are attached directly to the front surface 15.

In the locking position of the core 4 of the bulb the opening of the core drill 14 is in front of a housing opening 19. The blocking section 18, 18 'fits in the housing hole 19 in the locking position of the plug of magnetic strip 13, one of the two blocking sections 18, 18 'being formed by a step.

Figure 8 shows a cross-section through the core hole 14 and the magnetic plug 13 located therein. The core drill 14 has a non-round cross-section, whereby the core pin 13 cannot rotate inside the core hole 14. The core hole 14 has a cross-section with an edge section 28 thereof running over A circle arc line. The core bore 14 forms a longitudinal recess 26 within an angular range. The longitudinal recess 26 transitions to a circle arc line 28 with the formation of two edges 27.

The magnetic core pin 13 has a longitudinal rib 24 that penetrates the longitudinal recess 26. The longitudinal rib 24 is flanked by two protuberances 25, each of the protuberances 25 facing a ridge 27. The longitudinal rib 24 makes transition to the recess 25 without a broken line forming. The recess 25 forms a groove that runs parallel to the longitudinal rib 24 and which has a concave rounded bottom that transitions to a convex rounded longitudinal rib 24. As a consequence of this configuration, a rounded surface free of points is arranged opposite a ridge 27 of inflection of the magnetic plug pin 13. The core plug 13 has a cross-section with an edge section 23 that runs on a circle arc line. The recesses 25 extend radially inwards, referred to this line in an arc of a circle. The longitudinal rib 24 extends radially outward, referred to this line in an arc of a circle.

In the first embodiment shown in FIGS. 5 to 7, the magnetic eraser pin 13 is requested by the spring 17 towards the locked position represented in FIG. 4, in which the blocking section 18, 18 'is placed inside of the housing bore. The bore 19 of the housing runs here in the direction of the eccentric shaft A. It is certainly aligned with the bore 14 of the core.

If a conjugate key is plugged into the key channel 5 so that the magnetic zone 6 is in front of the magnetic magnet 22 with correct polarity, the core pin 13 is then dragged from the locked position shown in Figure 4 to the position of release shown in figure 6, the spring 17 being tensioned. If the key is pulled again to remove it from its channel 5, the magnetic eraser pin 13 is brought to the locked position represented in figure 4 due to the release of the pier 17.

If a key with a magnetic zone 6 that has a false polarization is plugged into the key channel 5, it results

then the operating position shown in Fig. 7. The magnetic plug pin 13 is held in the locked position by the spring 17 and eventually by the mutual repulsion force of the magnets 6, 22.

The embodiment shown in Figures 9 to 11 also has a magnetic core plug 13. Without

However, a housing plug 20 is plugged into the housing opening 19 between the housing plug 20 and the

bottom 19 'of the carcass opening 19 acts a helical compression spring 21 which asks the carcass pin 20 out of the opening 19 radially inward. The axis B in which the housing pin 20 can move is cut with the axis of rotation D of the core 4 of the bulb. Therefore, the B axis is a radial line. The housing plug 20 has a circular cross-section. It is rotationally symmetrical and is rotatably placed inside the housing bore 19 that has a circular cross-section.

The magnetic plug 13 is not elastically suspended in this embodiment. It is completely moved into the core bore 14 by the force of the spring requesting the housing plug 20, and then rests on the bottom 16 of the core bore 14. The housing plug 20 zonally penetrates the core bore 14 to block the rotation capacity of the core 4 of the bulb. Said pin rests on the oblique front surface 15 of the core plug 13. It can be seen in Figure 10 that the translation axis A of the core plug 13 and the translation axis B of the housing pin 20 associated with she cut herself forming a

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angle between 30 degrees and 50 degrees.

If, starting from the locked position shown in Figure 9, a correct key is plugged into the key channel 5, the permanent magnet 6 of the key seat 7 is in front of the permanent magnet 22 with polarities directed in opposite directions to deploying a repulsion action through the partition 16 formed between the key channel 5 and the core bore 14. Due to the magnetic force, the core plug 13 is brought to the release position shown in Figure 10, in which the housing pin 22 is completely moved into its housing 19, the compression spring 21 that requests said pin being tensioned. In this position you can make the bulb core rotate. Figure 11 shows the action of a key plugged in without the lock function in the key channel 5. The magnets 6, 22 are now polarized in the same direction, whereby they attract each other. The core plug 13 remains in its locked position in which the housing pin 20 zonally enters the core hole 14.

Figures 12 to 15 show a second embodiment of the invention. The double-closing bulb shown therein has a housing 1 with a housing recess to accommodate a bulb core 4. The core 4 of the bulb has several core holes 14 which run substantially parallel to each other and which are located one after the other in axial direction, in each of which a magnetic plug pin 13 is plugged in as described above. The bulb core has at least one magnetic core plug 13 that can be brought to its release position by a magnetic repulsion action with respect to the magnetic zone 6. This magnetic pin 13 is represented in Figure 14 and corresponds in its configuration and operation of the magnetic plug shown in figures 9 to 11.

The closing bulb also has at least one magnetic plug pin 13 that can be brought to its release position by a magnetic attraction force generated by the magnetic zone 6. This plug is represented in figure 15 and corresponds in its constitution and its operation to the magnetic plug shown in figures 4 to 6.

In contrast to the embodiments shown in Figures 1 to 11, in the embodiment shown in Figures 12 to 15, the openings 19 of the housing are formed by an insert plate 30. It is a curved hard plastic plate or of metal that is placed inside a recess 31 of the wall of the housing recess 3. The wall of the insert plate 30 facing the axis of rotation runs in cross-section on a circle arc line and forms a section partial of the housing surface to accommodate the core 4 of the bulb. The side of the insert plate 30 opposite to this side is applied to the bottom of the recess 31. The insert plate 30 has a large number of through holes for the entrance of the blocking section of an eraser pin 13 that can be brought to the position of release by magnetic attraction, or for the reception of a housing pin 20 which is requested by an elastic element 21 in the blocking direction, the elastic element 21 resting on the bottom of the recesses 31.

The longitudinal sides of the insert plate 30 or recess 31, which extend in the axial direction of the bulb core 4, have an extension plane that is a radial plane. For this reason, the two longitudinal edge sides of the insert plate 30 or recess 31 run in the form of a dovetail. The insert plate 30 is thus tied inside the recess 31.

The insert plate 30 can be plugged into recess 31 from the front front side. This can be done during the assembly of the core 4 of the bulb.

List of reference symbols

1 closing bulb housing

2 key

3 Housing gap

4 Bulb core

5 Key channel

6 Magnetic zone

7 Seatpost

8 Coding recess

9 core drill

10 Housing drill

11 core plug

 12 Housing plug

 13 Magnetic borja plug

 14 core drill

 15 Front surface

 5

 16 Background

 17 Elastic element

 18 Lock section

 18 'Lock Section

 19 Housing opening

 10

 19 'Shell bottom

 20 Housing plug

 21 Elastic Element

 22 Permanent Magnet

 23 Edge

 fifteen

 24 Longitudinal Nerve

 25 Extrusion

 26 Longitudinal recess

 27 Singing

 28 Wall section

 twenty

 29 Dock

 30 Insert Plate

 31 Down

 Axis

 B Axis

 25

 D Spindle axis

 R Radial plane

 S secant plane

Claims (11)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 1. Closing device with a closing bulb and a conjugate key, comprising a bulb core (4) mounted in a housing recess of a bulb housing (1) rotatably about a rotation axis (D) , in whose key channel (5) extended in the direction of the axis of rotation (D), a seat post (7) of the key (2) having one or more coding recesses (8) and at least one magnetic zone can be connected (6), at least a first core bore (9) and a first shell bore (10) arranged in a radial plane (R) passing through the axis of rotation (D), in which holes are housed, respectively, a first core pin (11) translatable in a direction transverse to the direction of the axis of rotation (D) and a corresponding housing pin (12), the first core pin (11) being able to be carried from a locked position to a release position by scanning of a coding recess associated with it, and at m enos a second core bore (14) in which a second magnetic core pin (13) can be moved that can be brought from a locked position to a release position by magnetic interaction with the at least one magnetic zone (6 ), characterized in that the axis (A) of the second core bore (14) is arranged in a secant plane (S) that runs transversely to the radial plane (R) and which is offset with respect to the axis of rotation (D), the magnetic core plug (13) having a non-round cross-section and positioned non-rotatably inside the core bore (14) associated therewith a front surface (15) running obliquely with respect to the axis (A) of said pin. 2. Closing device according to claim 1, characterized in that the core bore (14) housing the magnetic core plug (13) is a blind bore closed towards the key channel (5). 3. Closing device according to any of the preceding claims, characterized in that the secant plane (S) is offset with respect to the axis of rotation (D), in the direction away from the first core pins (11), especially around 1/4 to 3/4 of the radius of the core (4) of the bulb, preferably in the middle of the radius of said core (4) of the bulb. 4. Closing device according to any of the preceding claims, characterized by an elastic element (17) with which the magnetic core plug (13) is requested in the direction of its locked position, the magnetic core plug can be carried (13) to the release position by a magnetic attraction generated by the magnetic zone (6) against the restoring force of the elastic element (17) and penetrating into a housing opening (19), in the locked position, a blocking section (18, 18 ') - adjacent to the front surface (15) - of the magnetic core plug (13). 5. Closing device according to any one of claims 1 to 3, characterized in that the magnetic core plug (13) cooperates with a second housing pin (20) pre-tensioned by a spring in the direction of its locked position, whose housing pin it can be brought to a release position by a magnetic repulsion of the magnetic core pin (13) generated by the magnetic zone (6) against the restoring force of an elastic element (21). 6. Closing device according to claim 5, characterized in that the second housing pin (20) cooperating with the magnetic core plug (13) is housed in a second housing hole (19) extending in a radial direction , referred to the axis of rotation (D), whereby the axis (A) of the housing core bore of the magnetic core pin and the axis (B) of the second housing bore (19) run forming an obtuse angle one with another. 7. Closing device according to any of the preceding claims, characterized in that the magnetic core plug (13) has a small diameter section that faces the key channel (5) and into which a magnetic magnet (22) is plugged ) with polarity oriented in the axial direction of the second core pin, which cooperates with a permanent magnet disposed in the key post (7), provided with polarity oriented transversely to the plane of the wide side of the key and forming the key magnetic zone (6). 8. Closing device according to any of the preceding claims, characterized in that especially a section of the magnetic core plug (13) has an edge (23) of its cross-section that extends over more than 180 degrees and runs on a line in an arc of a circle and from which a longitudinal nerve protrudes (24). 9. Closing device according to claim 8, characterized in that the longitudinal rib (24) is flanked on both sides by protrusions (25). 10. Closing device according to any of claims 8 or 9, characterized in that the second core bore (14) has a longitudinal recess (26) in which the longitudinal rib (24) is located, transitioning the longitudinal recess ( 26), with the formation of a ridge (27), towards a wall section (28) of the second core bore (14) running on a circular cylindrical inner surface. 11. Closing device according to any of claims 4 to 10, characterized by several magnetic core pins (13), at least one magnetic core pin (13) being able to be brought to the release position by a magnetic attraction generated by the magnetic zone (6) against the restoring force of the element 8 elastic (17) and cooperating at least one other magnetic core pin (13) with a second housing pin (20) spring-loaded in the direction of its locked position, which can be brought to the release position by a magnetic repulsion of the magnetic core plug (13) generated by the magnetic zone (6) against the restoring force of an elastic element (21). 12. Closing device according to any of the preceding claims, characterized in that one or more Second housing holes (19) are specially configured as through holes of an insert plate (30) that is arranged in a recess (31) in the wall of the housing recess (3).