WO2002052595A1 - Capteur securitaire de mouvement - Google Patents
Capteur securitaire de mouvement Download PDFInfo
- Publication number
- WO2002052595A1 WO2002052595A1 PCT/FR2001/004055 FR0104055W WO02052595A1 WO 2002052595 A1 WO2002052595 A1 WO 2002052595A1 FR 0104055 W FR0104055 W FR 0104055W WO 02052595 A1 WO02052595 A1 WO 02052595A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- key
- movement sensor
- axis
- safe movement
- electrical contact
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
- H01H13/52—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
- H01H15/02—Details
- H01H15/06—Movable parts; Contacts mounted thereon
- H01H15/10—Operating parts
- H01H15/102—Operating parts comprising cam devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H2009/0083—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 using redundant components, e.g. two pressure tubes for pressure switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/038—Anti-vandalism
Definitions
- the technical sector of the present invention is that of motion sensors, in particular sensors with a high level of security for taking information into account.
- the object of the present invention is therefore to provide a safe movement sensor having the following combined effects: safety of taking into account information by redundancy of electrical contacts, light effect, adjustable touch effect, reduced dimensions, anti-vandalism and extra flat.
- the subject of the invention is therefore a secure movement sensor comprising a support and a front in which a key slides along an axis of translation from an initial position to a final position, comprising at least one electrical contact actuated along an axis substantially perpendicular to the axis of translation, characterized in that it comprises a transfer means actuated by the key along the axis of translation capable of acting on the electrical contact along the axis perpendicular to the axis of translation by approximation or away from ent .
- the transfer means is an elastic and deformable strip capable of transforming the force created by the translation of the key into a force applied to the electrical contact.
- the strip has an elastic curvature and a conical blank oriented at an angle.
- the front delimits an upper stop for the initial position and a lower stop for the final position of the key.
- the force applied to the electrical contact is independent of the force created by the translation of the key.
- the key is returned to the initial position under the effect of the transfer means.
- the key has a bevel capable of sliding on the conical blank.
- the transfer means, the electrical contact and a light device are integral with the support.
- the key gives a tactile effect.
- the tactile effect is adjustable thanks to the angle of the conical blank or the thickness of the strip or the number of electrical contacts used or a combination of these elements.
- a very first advantage of the security movement sensor according to the invention lies in the increase in the security level of the transformation of mechanical information into electrical information by redundancy of the contacts.
- Another advantage is the adjustable tactile effect depending on the use.
- Another advantage lies in the fact that the sensor according to the invention is particularly bright.
- Another advantage of the invention lies in the combination of a low mass, a low cost and reduced dimensions.
- Another advantage of the sensor according to the invention mounted on a keyboard lies in the fact that it cannot be damaged by vandalism.
- Another advantage lies in the fact that the printed circuit supports the processing electronics and this as close as possible to the electrical contacts. Another advantage lies in the fact that a tactile effect compatible with the use of a glove in a hostile environment can be obtained by a large bearing force.
- Yet another advantage lies in the increased level of security for the restitution of light information by redundancy of light-emitting diodes.
- Yet another advantage lies in the reactivity of the light beam without contact obstacle to increase efficiency and readability.
- Yet another advantage is that the fatigue exerted on the electrical contacts is independent of the user's efforts to provide a better life for the safety contact.
- FIG. 1 is a partial sectional view of a keyboard equipped with a secure motion sensor according to the invention
- FIG. 2 is a top view of a keyboard on which are mounted four secure motion sensors according to the invention
- FIG. 3 is a graph representative of the settings of the tactile effect of the security sensor according to the invention.
- FIG. 1 there is shown in cross section a keyboard 1 in which are installed two motion security sensors 2 and 3 according to the invention. These two sensors are identical in the example shown.
- the security movement sensor according to the invention mainly consists of a button 4, a transfer means 5, at least one electrical contact 6, a light device 7, a support 8, a front 9 consisting of an upper part 9a and d 'a background 9b.
- the total thickness of the sensor is less than 25 mm.
- the key 4 can move along the axis XX 'and includes an upper face 10 accessible to an operator (not shown).
- This upper face 10 can of course support any information necessary for understanding. It is therefore possible to print, screen-print or deposit by any process a text or a graphic symbol presenting the report of the operator's action.
- a shoulder 11 is formed at the periphery of the key 4 so that the upper face 10 is aligned with the upper part 9a. parallel to the upper face 10, the key 4 comprises a lower face 13, the usefulness of which will be highlighted in the description of the operation given below.
- This key is extended by a solid or hollow central protuberance 14 which slides in the bottom 9b. This protrusion is terminated externally by a bevel 15 machined at an angle A.
- the bottom 9b has a cavity 27, limited by a face 29, and an opening 28 through which the key 4 slides. This bottom 9b is capped by the part upper 9a pressing against the shoulder 11, thus trapping the key 4.
- the transfer means 5 consists of at least one strip 17 mainly consisting of an elastic curvature 18.
- This strip 17, made of an elastic and deformable material, is made integral with the support 8 by one of its ends, the other end being machined to take the form of a conical blank 19.
- the angle B of the latter is substantially complementary to the angle A so that the conical blank 19 is put in full support on the bevel 15 of the key 4.
- the elastic curvature 18 of the strip 17 is characterized by its radius 21.
- the outer wall 22 of this curvature 18 is supported on the electrical contact 6.
- the latter is a push button contact of known type, the constitution of which does not require additional detail.
- the displacement of the electrical contact, caused by the strip 17, takes place along an axis YY 'substantially perpendicular to the axis XX' of the key 4.
- the electrical contact 6 is integral with the support 8.
- the support 8 is the holding element for all of the sensor parts, but it also serves for the circuit and electrical connections. This support can therefore advantageously be a printed circuit where the electrical contacts 6 and the device are directly connected bright 7.
- FIG. 2 illustrates a top view of a keyboard 1 equipped for example with four security movement sensors according to the invention.
- the security movement sensor 2 consists of its front 9 and its key 4 as described in FIG. 1.
- the key 4 can act on four strips 17 which then form substantially a conduit.
- the light device 7. is integral with the support 8 and can conventionally be constituted by light-emitting diodes, for example four.
- the association of the latter with the conduit formed by the lamellae 17 has the effect of making the security sensor according to the invention particularly bright.
- the button 4 can act either simultaneously on the slats 17, or sequentially.
- the four strips 17 act on four electrical contacts 6.
- the number of contacts cannot be limited to the illustration described here. Indeed, the miniaturization of the elements makes it possible to increase the number of lamella and therefore the number of contact to further improve the level of security.
- FIG 3 there is shown a graph representative of the tactile effect with respect to the number of electrical contacts.
- the tactile effect is the effort required to move key 4 from the initial position to the final position. This effect may vary depending on using the keyboard, for example with gloves.
- the displacement in millimeters of the key 4 is shown on the abscissa and the effort in Newtons on the ordinate.
- Curve 23 corresponds to a sensor according to the invention equipped with a single electrical contact and the tactile effect is substantially equal to six Newtons.
- the curves 24, 25 and 26 respectively illustrate the use of two, three and four electrical contacts delivering peak tactile effects of ten, fifteen and twenty Newtons.
- the tactile effect can be adjusted by other means such as for example by changing the angle B of the conical blank 19 or by modifying the thickness or the structure of the strip 17. It is of course obvious that the adjustment of the tactile effect can combine all or part of these means.
- the operation of the motion security sensor according to the invention is as follows. Referring to FIG. 1, it can be seen that by exerting pressure on the upper face 10, the key 4 is pressed. The latter therefore moves from the initial position where the shoulder 11 abuts on the upper part 9a up to 'in the final position where the lower face 13 then comes into abutment on the face 29 of the cavity 27. The movement of the key 4 is therefore mechanically limited by two stops.
- the function of the sensor is the transformation of a mechanical movement into electrical information
- the feared event is then the non-consideration of this transformation.
- the probability of occurrence of the feared event is approximately 10 "by 6 electrical contact. Therefore, decreases sharply this probability by increasing contacts. For example, two electrical contacts, the probability function will be 10 ⁇ 12.
- the sensor according to the invention makes it possible to achieve very high security levels and that is why it is qualified as security.
- the invention combines the objectives and advantages described above, that is to say security, anti-vandalism, extra flat shape and reduced bulk, light effect and tactile effect.
Landscapes
- Push-Button Switches (AREA)
- Automotive Seat Belt Assembly (AREA)
- Air Bags (AREA)
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT01994901T ATE442659T1 (de) | 2000-12-22 | 2001-12-19 | Sicherheits bewegungssensor |
EP01994901A EP1344236B1 (fr) | 2000-12-22 | 2001-12-19 | Capteur securitaire de mouvement |
DE60139891T DE60139891D1 (de) | 2000-12-22 | 2001-12-19 | Sicherheits bewegungssensor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0016964A FR2818793B1 (fr) | 2000-12-22 | 2000-12-22 | Capteur securitaire de mouvement |
FR00/16964 | 2000-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002052595A1 true WO2002052595A1 (fr) | 2002-07-04 |
Family
ID=8858145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/004055 WO2002052595A1 (fr) | 2000-12-22 | 2001-12-19 | Capteur securitaire de mouvement |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1344236B1 (fr) |
AT (1) | ATE442659T1 (fr) |
DE (1) | DE60139891D1 (fr) |
FR (1) | FR2818793B1 (fr) |
WO (1) | WO2002052595A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1443354A (fr) * | 1965-05-13 | 1966-06-24 | Perfectionnements aux commutateurs à sélection par coordonnées | |
US4145589A (en) * | 1976-06-30 | 1979-03-20 | Gnt Automatic A/S | Pushbutton arrangement |
EP0028000A1 (fr) * | 1979-10-30 | 1981-05-06 | Siemens Aktiengesellschaft | Interrupteur à bouton-poussoir |
DE3335014A1 (de) * | 1983-09-28 | 1985-04-04 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Bedienungstaste fuer fernmelde-, insbesondere fernsprechgeraete |
-
2000
- 2000-12-22 FR FR0016964A patent/FR2818793B1/fr not_active Expired - Fee Related
-
2001
- 2001-12-19 EP EP01994901A patent/EP1344236B1/fr not_active Expired - Lifetime
- 2001-12-19 WO PCT/FR2001/004055 patent/WO2002052595A1/fr not_active Application Discontinuation
- 2001-12-19 AT AT01994901T patent/ATE442659T1/de active
- 2001-12-19 DE DE60139891T patent/DE60139891D1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1443354A (fr) * | 1965-05-13 | 1966-06-24 | Perfectionnements aux commutateurs à sélection par coordonnées | |
US4145589A (en) * | 1976-06-30 | 1979-03-20 | Gnt Automatic A/S | Pushbutton arrangement |
EP0028000A1 (fr) * | 1979-10-30 | 1981-05-06 | Siemens Aktiengesellschaft | Interrupteur à bouton-poussoir |
DE3335014A1 (de) * | 1983-09-28 | 1985-04-04 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Bedienungstaste fuer fernmelde-, insbesondere fernsprechgeraete |
Also Published As
Publication number | Publication date |
---|---|
EP1344236B1 (fr) | 2009-09-09 |
EP1344236A1 (fr) | 2003-09-17 |
ATE442659T1 (de) | 2009-09-15 |
FR2818793B1 (fr) | 2003-08-08 |
DE60139891D1 (de) | 2009-10-22 |
FR2818793A1 (fr) | 2002-06-28 |
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