CN113338730A - Improved locking device - Google Patents
Improved locking device Download PDFInfo
- Publication number
- CN113338730A CN113338730A CN202110190128.9A CN202110190128A CN113338730A CN 113338730 A CN113338730 A CN 113338730A CN 202110190128 A CN202110190128 A CN 202110190128A CN 113338730 A CN113338730 A CN 113338730A
- Authority
- CN
- China
- Prior art keywords
- lock
- locking device
- proximity sensor
- locking
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
- E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
- E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
- E05C3/24—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member
- E05C3/26—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member engaging a stud-like keeper
- E05C3/28—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member engaging a stud-like keeper with simultaneously operating double bolts
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
- E05B15/0205—Striking-plates, keepers, staples
- E05B15/0295—Striking-plates, keepers, staples specially adapted for forked or bifurcated bolts
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B45/00—Alarm locks
- E05B45/06—Electric alarm locks
-
- 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
- E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
- E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
- E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
- E05C3/30—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a hook
- E05C3/34—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a hook with simultaneously operating double bolts
-
- 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
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
- E05B2047/0068—Door closed
-
- 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
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
- E05B2047/0069—Monitoring bolt position
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The present invention relates to an improved locking device. The locking device (6) is of the type comprising, on the one hand, a lock crosspiece support (10) fitted with a lock crosspiece (16) and, on the other hand, a lock casing (20) incorporating a lock adapted to be closed on the lock crosspiece, characterized in that it further comprises an inductive proximity sensor (30) fixed to the lock crosspiece support (10) and adapted to detect the presence of a reference surface (25) of the lock casing (20) within the operating range of the proximity sensor, the correct locking condition of the locking device (6) being verified when the distance between the proximity sensor and the reference surface is within the operating range of the proximity sensor.
Description
[ technical field ] A method for producing a semiconductor device
The invention is directed to the field of locking devices of the type which on the one hand comprise a crossbar support fitted with a crossbar (gache) and on the other hand a lock housing incorporating a lock, which lock is constituted by two claws that are normally open and that are arranged to close over the crossbar when they hit it with a certain force.
[ background of the invention ]
Document FR 1149157 discloses a locking device of the above-mentioned type.
However, it is necessary to be able to ensure a correct locking state of such a locking device.
For this purpose, mechanical systems are known which are associated with the lock and are adapted to detect the correct locking state of the locking device by direct contact with the lock cross head.
However, such mechanical systems are still difficult to incorporate inside the lock housing. They are complex to implement and difficult to maintain.
It is therefore an object of the present invention to overcome the above problems.
[ summary of the invention ]
To this end, the subject of the invention is a locking device of the type comprising, on the one hand, a lock crosspiece support fitted with a lock crosspiece and, on the other hand, a lock casing incorporating a lock adapted to be closed on the lock crosspiece, characterized in that it also comprises an inductive proximity sensor fixed to the lock crosspiece support and adapted to detect the presence of a reference surface of the lock casing within the operating range of the proximity sensor, the correct locking condition of the locking device being verified when the distance between the proximity sensor and the reference surface is within the operating range of the proximity sensor.
According to a particular embodiment, the locking means comprise one or more of the following features considered alone or according to any technically possible combination:
the lock is constituted by a pair of jaws which are normally open and arranged to close on the lock crossbar;
the lock bar is in the form of a cylindrical pin mounted on the lock bar support;
the lock case is formed by a base plate supporting the various components of the lock and a top cover closing the lock case, the base plate and the top cover having recesses for receiving the lock crosspieces;
the lock housing is provided with means for locking the lock in a correctly locked state;
the lock crosspiece support is shaped so that it has a first planar wall intended to be parallel to a reference surface of the lock case, the first planar wall carrying the proximity sensor;
the proximity sensor is electrically connected to an electronic device adapted to transmit information corresponding to the state of the locking means indicated by the proximity sensor;
-the electronic device is adapted to send an alarm when the status of the locking device is not a correctly locked status, and to suspend sending the alarm when the status of the locking device is a correctly locked status; and-the alarm comprises placing the lamp's feed circuit in a closed state.
The invention also relates to a vehicle access gate (trappe' acc de v hicule) comprising a removable cover (ouvrant) adapted to close an opening defined by a frame, the removable cover being mounted so as to be movable with respect to the frame between an open position and a closed position, and a locking device according to the previous device.
[ description of the drawings ]
The invention and its advantages will be better understood by reading the following detailed description of a specific embodiment, given purely by way of illustrative and non-limiting example. The description is made with reference to the sole accompanying figure 1, in which figure 1 a preferred embodiment of the locking device according to the invention is shown in perspective view.
[ detailed description ] embodiments
The present description will be made more specifically in the case of closing an opening, for example an opening into and out of a railway machinery room, by an access gate comprising a removable cover plate 4, such as the cover 4.
The opening is defined by a generally rectangular frame.
The cover 4 is mounted to pivot on an axis parallel to one of the uprights of the frame.
At least one locking device according to the invention is provided to maintain the cover on the frame in a correctly locked state.
As shown in fig. 1, the locking device 6 comprises, on the one hand, a lock bar support 10 and, on the other hand, a lock housing 20.
The latch bar support 10 is mounted on the frame 2 in the region of an upright opposite the upright on which the cover 4 is pivotally mounted.
A lock housing 20 is mounted on the edge of the cover 4 so as to be able to cooperate with the lock cross head support 10.
The base XYZ is associated with the locking means 6. The Y axis is parallel to the pivot axis of the cover; the Z-axis, i.e. the vertical axis, is oriented towards the centre of the flap (the YZ plane corresponds to the plane of the opening to be closed); and the X axis, which is orthogonal to the Y axis and the Z axis, corresponds to the axis of movement of the lock housing 20 when locked, specifically when locked on the lock cross head support.
The latch bar support 10 is constituted, for example, by a plate shaped with "U" rows. The free ends of the wings 11 and 12 of the "U" shaped plate are bent outwards to form a transition plane, so as to enable the locking crosspiece support 10 to be fixed to the frame 2, for example by welding.
The "U" shaped plate is shaped so that its middle part has a first planar wall 13 connecting the two wings to each other and a second planar wall 15 bent at right angles to the first planar wall 13.
When the lock bar support 10 is installed, the plane of the first plane wall 13 is parallel to the YZ plane, that is to say has a normal parallel to the X axis; the plane of the second planar wall 15 is parallel to the XY-plane, that is to say has a normal parallel to the Z-axis.
The second planar wall 15 is provided with a transverse locking head 16. Preferably, the latch bar 16 takes the form of a cylindrical pin, the axis B of which is parallel to the Z axis.
The first planar wall 13 is provided with a hole enabling the insertion of the proximity sensor 30. The proximity sensor 30 is of the inductive type.
The proximity sensor 30 has a substantially cylindrical shape along the axis C. It comprises a distal end 31, a body 32 and a proximal end 33.
To mount the proximity sensor 30 on the crossbar support 10, a hole is punched in the first planar wall 13 to pass the threaded body 32 of the proximity sensor 30. To lock the proximity sensor 30 in place, two nuts 34 are provided on either side of the wall 13. They are screwed onto the threaded body 32 of the sensor and serve to ensure that it remains in place.
The proximity sensor 30 is mounted such that the axis C is parallel to the X-axis. The proximal end 33 is oriented toward the lock housing 20 and the distal end 31 is distal from the lock housing 20.
The cable connects the distal end 31 of the proximity sensor 30 to electronics adapted to analyze the information about the locking status transmitted by the proximity sensor 30 from time to time. The electronics are not shown in the figure.
The lock case 20 is constituted by a base plate 23, and various members forming a lock are attached to the base plate 23. The top cover 24 covers the bottom plate 23 to close the lock case 20 and protect various components.
A lock is provided, mounted on the base plate 23, inside the lock case 20, and is constituted by a pair of jaws 21 and 22 hinged so as to be able to pivot towards or away from each other about axes a1 and a2, respectively. The axes A1 and A2 are parallel to the Z axis.
The jaws 21 and 22 are each spring loaded to maintain them in the open position.
The bottom plate 23 and the top cover 24 are provided with flared recesses intended for the passage of the locking crosspiece 16.
The jaws 21 and 22 are provided with retaining grooves adapted to cooperate with the lock bar head 16.
More precisely, when the cover 4 is closed on the frame 2, the impact of the crosspiece 16 on the roots of the retaining grooves of the jaws 21 and 22 forces the jaws 21 and 22 to close on the crosspiece 16.
Preferably, but not shown in the figures, an auxiliary lever system makes it possible to block the jaws 21 and 22 on the crossbar 16 in the closed position. The locking device 6 is then in a correctly locked state.
When the cover 4 is closed on the frame 2, the edge face 25, which depends from the top cover 24 of the lock housing 20, is placed opposite the proximal end face 33 of the proximity sensor 30.
The proximity sensor 30 detects (detects) whether the metal surface 25 is present in an operating range that is a characteristic of the proximity sensor at all times.
In the properly locked state, the face 25 is within the operating range of the proximity sensor 30. Thus, the proximity sensor 30 detects the face 25.
The face 25 then constitutes a reference surface whose distance to the proximity sensor 30 (for example to the proximal end 33 of the distance sensor 30) should be at most equal (taking into account a certain tolerance interval) to the upper limit of the working range of the sensor 30, in order to prove the correct locking condition of the locking device 6. The upper limit defines the reference distance D.
If the distance between the face 25 and the proximity sensor 30 is equal to or less than the reference distance D, a correct locking state of the cover on the frame is confirmed.
In contrast, if the distance is greater than the reference distance D, the correct locking state of the cover on the frame is not confirmed.
The information is transmitted from the proximity sensor to the electronic device.
Advantageously, the electronic means are adapted to issue an alarm as to the correct locking condition of the cover on the frame, for example to help the operator recognize that the machine room is not closed.
Thus, for example, the electronic device is adapted to control the switching of the circuit feeding the lamp of the instrument panel (for example located in a railway monitoring centre) from an open state to a closed state and vice versa.
If the correct locking state is not confirmed, the electronics maintain the switch in a closed state to feed the lamp. Thus, the light remains illuminated to indicate to the operator that the cover is not properly locked.
Conversely, when the correct locking condition is confirmed, the electronic device switches the switch to its off-state, so as to cut off the power supply to the lamp and thus extinguish it.
The invention thus makes it possible to detect the relative position of the lock casing 20 with respect to the lock crosspiece support 10 by means of an inductive proximity sensor calibrated to the correct locking edge line of the locking device
To determine whether the locking device is in a properly locked state.
An advantage of an inductive proximity sensor is that it has a detection range of about a few millimeters, for example 12 mm. The sensor is thus able to detect a reference surface of the lock housing when the lock housing is less than 12mm from it. The screw nut type coupling of the proximity sensor on the lock crossbar support makes it possible to easily position the proximal end of the proximity sensor with respect to the reference surface, taking into account the detection range and the correct locking condition to be demonstrated.
The detection of a correct locking state by means of an inductive proximity sensor is greatly improved compared to the embodiment of a mechanical detector, in particular due to the separation of the locking function and the lock detection function. This provides the possibility of implementing various types of lock, as long as the lock housing surrounding the lock is left with a suitable reference surface, i.e. the position of which with respect to the complementary element of the lock (lock crosshead support) is linked to the correct locking state of the lock (and thus the locking device).
In a variant not shown, the lock crosspiece support 10 is mounted on the cover 4 and the lock housing 20 is mounted on a column of the frame 2.
Claims (9)
1. A locking device (6) of the type comprising, on the one hand, a crossbar support (10) fitted with a crossbar (16), and, on the other hand, a lock case (20) incorporating a lock adapted to be closed on the crossbar, characterized in that it also comprises an inductive-type proximity sensor (30) fixed to the crossbar support (10) and adapted to detect the presence of a reference surface (25) of the lock case (20) within the operating range of the proximity sensor, the correct locking state of the locking device (6) being verified when the distance between the proximity sensor and the reference surface is within the operating range of the proximity sensor, the lock being constituted by a pair of jaws (21, 22) which are normally open and which are arranged to be closed on the crossbar (16).
2. The locking device (6) according to claim 1, wherein the lock bar head (16) is in the form of a cylindrical pin mounted on the lock bar head support (10).
3. Locking device (6) according to one of claims 1 to 2, wherein the lock housing (20) is formed by a base plate (23) supporting the components of the lock and a top cover (24) closing the lock housing, the base plate and the top cover having recesses for receiving the lock crosspiece (16).
4. Locking device (6) according to any of the preceding claims, wherein the lock housing (20) is provided with means for locking the lock in a correctly locked state.
5. Locking device (6) according to any one of the preceding claims, wherein the lock bar support (10) is shaped such that it has a first planar wall (13) intended to be parallel to a reference surface (25) of the lock housing (20), the first planar wall carrying the proximity sensor (30).
6. The locking device (6) according to any one of the preceding claims, wherein the proximity sensor (30) is electrically connected to an electronic device adapted to transmit information corresponding to the status of the locking device indicated by the proximity sensor (30).
7. The locking device (6) according to claim 6, wherein the electronic device is adapted to send an alarm when the state of the locking device is not a correct locking state, and wherein the electronic device is adapted to discontinue sending the alarm when the state of the locking device is a correct locking state.
8. The locking device (6) according to claim 7, wherein the alarm comprises placing the lamp's feed circuit in a closed state.
9. A carrier access gate comprising:
-a removable cover (4) adapted to close the opening delimited by the frame, and
-a locking device (6) according to any one of the preceding claims,
the removable cover is mounted for movement relative to the frame between an open position and a closed position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2001600 | 2020-02-18 | ||
| FR2001600A FR3107293B1 (en) | 2020-02-18 | 2020-02-18 | Improved locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113338730A true CN113338730A (en) | 2021-09-03 |
Family
ID=70614134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110190128.9A Pending CN113338730A (en) | 2020-02-18 | 2021-02-18 | Improved locking device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3868988B1 (en) |
| CN (1) | CN113338730A (en) |
| ES (1) | ES2956951T3 (en) |
| FR (1) | FR3107293B1 (en) |
| PL (1) | PL3868988T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3128930B1 (en) * | 2021-11-08 | 2023-11-10 | Speedinnov | Hatch for a public transport vehicle, car and associated vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1149157A (en) | 1955-12-21 | 1957-12-20 | Agrafes Francaises Et D Articl | Locking device |
| GB2409877B (en) * | 2004-01-08 | 2007-06-13 | Tri Mark Corp | Latch assembly |
| DE102009041101A1 (en) * | 2009-09-14 | 2011-03-24 | K.A. Schmersal Holding Gmbh & Co. Kg | Guard for a component for closing an opening |
| US20120167644A1 (en) * | 2010-12-31 | 2012-07-05 | Berger Mark J | Delayed egress paddle alarm door lock |
| FR2973057B1 (en) * | 2011-03-25 | 2013-12-27 | Peugeot Citroen Automobiles Sa | DEVICE FOR LOCKING AN OPENING DEVICE WITH AN INSTRUMENTED GACHE AND MOTOR VEHICLE EQUIPPED WITH SUCH A DEVICE. |
| FR3007390B1 (en) * | 2013-06-19 | 2015-07-17 | Airbus Operations Sas | LOCKING MECHANISM OF AN AIRCRAFT HOOD INTEGRATING A SENSOR FOR DETECTING THE UNLOCKED HOOD CONDITION |
| US11021892B2 (en) * | 2016-08-17 | 2021-06-01 | Amesbury Group, Inc. | Locking system having an electronic keeper |
-
2020
- 2020-02-18 FR FR2001600A patent/FR3107293B1/en active Active
-
2021
- 2021-02-16 ES ES21157315T patent/ES2956951T3/en active Active
- 2021-02-16 EP EP21157315.9A patent/EP3868988B1/en active Active
- 2021-02-16 PL PL21157315.9T patent/PL3868988T3/en unknown
- 2021-02-18 CN CN202110190128.9A patent/CN113338730A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES2956951T3 (en) | 2024-01-05 |
| FR3107293B1 (en) | 2022-03-18 |
| EP3868988A1 (en) | 2021-08-25 |
| FR3107293A1 (en) | 2021-08-20 |
| EP3868988B1 (en) | 2023-07-05 |
| PL3868988T3 (en) | 2024-01-15 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |