Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
  • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
  • E05B47/0696—Controlling mechanically-operated bolts by electro-magnetically-operated detents locking the bolt by an electromagnet in the striker
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
  • E05B2047/0072—Operation
  • E05B2047/0073—Current to unlock only
  • E05B2047/0074—Current to unlock only holding means other than current (mechanical, magnetic)
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B65/00—Locks or fastenings for special use
  • E05B65/02—Locks or fastenings for special use for thin, hollow, or thin-metal wings
  • E05B65/025—Locks or fastenings for special use for thin, hollow, or thin-metal wings for lockers
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
  • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
  • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
  • E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
  • E05C3/041—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted
  • E05C3/042—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted the handle being at one side, the bolt at the other side or inside the wing

Definitions

• the present invention relates generally to a lock and more specifically to a lock device with electrical interlocking.
• a known way of increasing the security in a lock device is to provide an electrical interlocking, which means that, beyond the conventional mechanical blocking, there is also some type of electrically operated blocking or arresting of the lock bolt .
• One object of the present invention is to produce a lock device which has a secure and cheap electrical interlocking.
• the invention is based on the insight that an electrically operated lock plate, in combination with a locking bar and an interlocking bar, allows automatic mechanical locking and electrical unlocking.
• a lock device as defined by the appended patent claim 1 a locker as defined by the appended patent claim 12 and a lock system as defined by the appended patent claim 13 are therefore produced.
• a lock device which has automatic mechanical locking and electrical unlocking, while, at the same time, the design remains simple.
• an active handling is required to lock the lock device .
• the manually actuable element further produces an increased security with respect to opening.
• the electrical unlocking can be controlled, for example, from a centrally placed panel which is common to a plurality of lockers or the like. When an authorized user, for example, swipes an authorization card or inputs an authorization code at the panel, the intended locker is electrically unlocked.
• Another advantage of the invention is that a very thin external lock device is obtained, since the bar and the interlocking bar can be configured as simple sheet metal parts.
• a lock device is obtained which is very cheap and rational, both to produce and to fit. It is advantageous that the lock can be made thin, since the lock is fitted in a locker in which it occupies very little of the opening space. The risk of getting a bag or a jacket, for example, caught in the lock is thus reduced.
• the lock device comprises a bolt, which constitutes the manually operable element and which is mechanically coupled to a door knob, a cylinder or the like, and a lock housing which is placed in a door frame and comprises the locking bar, the interlocking bar and the lock plate, the locking bar, in its locking position, being placed in a slot in the lock housing.
• One advantage with this embodiment is that existing recesses in the locker door can be used for fitting the knob.
• the configuration involving a slot in which the bolt, in its arresting position, engages means that the lock device can be retrofitted on, broadly speaking, any locker whatsoever and continues to offer strong locking security. The lock is therefore easy to retrofit .
• the manually operable element is constituted by the locking bar, which in this case is mechanically coupled to a handle for linear displacement of the locking bar.
• the locking bar preferably engages in a door frame when it is in its locking position. Further preferred embodiments are defined by the subclaims .
• fig. 1 is a general view of a locker door which is lockable by means of a first embodiment of a lock device according to the invention
• fig. 2 is a view of the interior of the locker in fig. 1, which shows the placement of the first embodiment of a lock device according to the invention
• fig. 3 is a view which shows a bolt engagement in the lock device shown in fig. 2,
• figs. 4-8 show various steps with respect to locking and unlocking with the first embodiment of a lock device according to the invention
• fig. 9 is a general view of a locker door which is lockable by means of a second embodiment of a lock device according to the invention.
• fig. 10 is a view of the inner side of the door in fig. 9 , which shows the placement of the second embodiment of a lock device according to the invention,
• fig. 11 is a view which shows a bolt engagement in the lock device shown in fig. 10,
• figs. 12-17 show different steps with respect to locking and unlocking with the second embodiment of a lock device according to the invention
• fig. 18 shows a lock system comprising lock devices according to the invention.
• a locker 1 in which a lock device according to a first embodiment of the invention is disposed.
• This lock device is mechanically operated by means of a rotatable knob 14, which is fitted to a door 10, in this case a locker door.
• the lock device comprises a lock housing 20, configured with an elongated slot 22 designed to receive a pivotable bolt 12 which is mechanically coupled to the rotatable door knob 14.
• the knob is preferably provided with an overload protection 14, so that the lock device cannot be wrenched apart by the application of an excessively high torsional force to the knob.
• a clamp 16 is fixed to the locker door 10. This clamp 16 extends, in the closed position for the door 10, through a reinforcing clamp 24, which is fixed in the wall of the locker. This makes it harder to break open the door when the lock device is locked.
• fig. 3 a corresponding view to that in fig. 2 is shown, but with the door 10 omitted, so that the engagement of the bolt 12 in the elongated opening 22 in the lock housing 20 is shown.
• the working of the lock device will now be described in detail with reference to figs. 4-8.
• the lock housing 20 is shown with the cover removed, whereby the inner parts are exposed. These parts comprise a horizontally movable locking bar 26, which is spring-loaded by means of a spring 28 toward a position in which the arrow-shaped tip 26a of the locking bar engages in the slot 22.
• an L- shaped, horizontally movable interlocking bar 30 is likewise spring-loaded by means of a spring 32 toward a position in which the flat end of the interlocking bar engages in the slot 22.
• a lock plate 34 is vertically movable under the control of a solenoid 36. This means that the lock plate 34 is movable in a direction which is perpendicular to the motional direction of the locking bar and the interlocking bar.
• the solenoid has a spring (not shown) , which in the currentless state, automatically pushes the lock plate into a vertically lower end position. This means that, when a gap appears between the locking bar and the interlocking bar, the lock plate is pushed into this gap. A purely mechanically interlocked locking is thereby obtained.
• a current pulse is sent to the solenoid, the lock plate is lifted into a vertically upper end position, in which the lock plate is not in the gap between the locking bar and the interlocking bar.
• Fig. 4 shows the lock device in the open position.
• the bolt 12 is in a vertical position, i.e. is not engaged in the clamp 16 or in the slot 22, and the door 10 can be displaced between the open and closed position.
• Fig. 5 shows the lock device during a locking operation.
• the bolt 12 engages in the slot 22 and has pushed the locking bar 26 out of engagement with the slot 22. This is enabled by the arrow-shaped tip 26a of the locking bar 26.
• the locking bar whose other end opposite to the arrow-shaped tip bears against the interlocking bar 30, has thus displaced the latter to a corresponding degree. This means that the interlocking bar, too, has left the engagement with the slot 22, thereby allowing the bolt 12 to engage with the lower end part of the slot.
• Fig. 6 shows when the bolt 12 has assumed a vertical position, in which it occupies the lower end part of the slot 22.
• the locking bar 26, which had previously- been moved out of engagement with the slot 22, has now, as a result of the spring bias, resumed the position in which it engages with the slot 22.
• the lock plate When the current to the solenoid is broken, the lock plate will therefore be pretensioned such that it automatically locks when the bolt is turned down. Automatic mechanical locking is thereby obtained.
• the activation device which produces unlocking is located at a distance from the device on which the lock is disposed. This applies particularly when a centrally placed card reader or the like activates the solenoid for the lock belonging to the cardholder, as can be the case where a central card reader activates school locks placed in a corridor. If automatic mechanical locking does not occur, the user must move between the reader and the lock device not only when opening but also when locking.
• Fig. 7 shows how the lock plate 34, under the control of the solenoid, has been displaced into an upper end position in which it is not placed in the gap between the locking bar 30 and the interlocking bar 34. This means that, if a displacement upward within the slot 22 is imparted to the bolt 12, the arrow-shaped tip 26a of the locking bar 26 will be forced out of its engagement with the slot 22 and will be displaced into the open position shown in fig. 4.
• the pivot bolt 12 can be replaced with a hook bolt, in which case a non- load continuous working, which becomes very strong, is obtained.
• FIG. 9-17 A second embodiment of a lock device according to the invention will now be described with reference to figs. 9-17.
• the lock housing 120 is shown with the cover removed, whereby the inner parts are exposed.
• the outer side is shown of a locker door 110, in which a lock device is disposed.
• This lock device is mechanically operated by means of a linearly displaceable handle 114, which is fitted to the locker door 110.
• the lock device comprises a lock housing 120, having a horizontally movable locking bar 126 which is spring-loaded by means of a spring 128 toward a position in which the beveled outer part 126a of the locking bar engages in a door frame 112 of a locker or the like (not shown) and, more precisely, in a cutout 112a in the door frame .
• the beveled outer end part of the locking bar acts therefore as a latch bolt, as will be explained below.
• the locking bar is mechanically coupled to the handle 114 and can hence be manually operated by the latter.
• there is an L- shaped, horizontally movable interlocking bar 130 which likewise is spring-loaded by means of a spring 132 toward an outer end position in which the flat end of the interlocking bar protrudes beyond the lock housing 120.
• a lock plate 134 is vertically movable under the control of a solenoid 136. This means, as in the first embodiment, that the lock plate 134 is movable in a direction which is perpendicular to the motional direction of the locking bar and the interlocking bar.
• the solenoid has a spring (not shown) , which in the currentless state, automatically pushes the lock plate into a vertically lower end position.
• the working of the parts included in the lock housing 120 corresponds to the working of the parts in the first embodiment. The difference is that in the second embodiment the outer end part of the locking bar, and the interlocking bar, interact with the door frame 112 instead of with a slot in the lock housing.
• figs. 12-17 the door 110 is shown in the open position.
• the locking bar 126 is in its outer end position. There is no gap between the locking bar and the interlocking bar 130 and the lock plate is therefore in its upper end position.
• the locking bar 126 is pressed in toward its inner end position by virtue of the beveled outer end part 126a, which is pressed in by the door frame 112 as a latch bolt.
• the interlocking bar 130 is pressed in by the locking bar, so that it too assumes an inner end position.
• the unlocking operation is shown in fig. 15-17. In fig.
• the lock is shown when the solenoid has been activated by means of a current pulse.
• the lock plate has been displaced into its upper end position and is no longer found in the gap between the locking bar 126 and the interlocking bar 130.
• the locking bar can hence be manually displaced into its inner end position, when it no longer engages in the door frame 112, see fig.
• a central unlocking unit 200 is shown, which is electrically connected to a plurality of lockers 1 provided with lock devices according to the invention.
• the solenoid in one of the lockers can be activated by means of, for example, a magnetic card for a predetermined period, for example 10 seconds, whereby the locker can be manually opened during this period. Subsequent locking of the locker is effected automatically and mechanically, as has been described above .
• an electrically controlled actuating element other than a solenoid, for example an electrical motor, can be used for the displacement of the lock plate 34.
• the manually operable element is coupled to a door knob or a handle. It will be appreciated, however, that this element can also be manually operated by means of a host of other elements, such as, for example, a lock cylinder for the reception of a key, a trigger, a push button, a lever or a manually actuable electrical device.

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• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Lock And Its Accessories (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39268686

Family Applications (1)

Country Status (5)

Cited By (2)

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Citations (2)

Family Cites Families (2)

• 2006
  • 2006-10-02 SE SE0602053A patent/SE530371C2/sv unknown
• 2007
  • 2007-10-02 WO PCT/SE2007/000872 patent/WO2008041908A1/en active Application Filing
  • 2007-10-02 CN CNA2007800369387A patent/CN101553637A/zh active Pending
  • 2007-10-02 DE DE112007002208T patent/DE112007002208T5/de not_active Withdrawn
• 2009
  • 2009-03-10 GB GB0904135A patent/GB2454447A/en not_active Withdrawn

Patent Citations (2)

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