EP0091360B1 - Mechanische Fernbedienung für elektrische Motoren mit Explosionsschutz - Google Patents
Mechanische Fernbedienung für elektrische Motoren mit Explosionsschutz Download PDFInfo
- Publication number
- EP0091360B1 EP0091360B1 EP83400650A EP83400650A EP0091360B1 EP 0091360 B1 EP0091360 B1 EP 0091360B1 EP 83400650 A EP83400650 A EP 83400650A EP 83400650 A EP83400650 A EP 83400650A EP 0091360 B1 EP0091360 B1 EP 0091360B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slide
- olive
- motor
- pivoting
- plates
- 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.)
- Expired
Links
- 238000004880 explosion Methods 0.000 title description 3
- 240000007817 Olea europaea Species 0.000 claims abstract description 24
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000004913 activation Effects 0.000 claims abstract 4
- 230000003213 activating effect Effects 0.000 claims 1
- 208000031968 Cadaver Diseases 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G7/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
- G05G7/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
Definitions
- the present invention relates to a remote control which can be used in particular for explosion-proof electric motors.
- explosion-proof motors are used which are often placed in inaccessible places. It is therefore important to be able to control these electric motors remotely.
- a mixer or other device must be driven for a well-defined period of time, so that the control must be provided with a timer to avoid having to constantly monitor it. It is also very important that the engine can be stopped immediately if an incident occurs and it is known in the art that particularly rapid intervention is obtained when a stop switch or button operating by pressing is available since an actuation known as a punch corresponds to an automatic reflex.
- US-A-1 993 645 describes a mechanical system for triggering a spring device, for example for the control of a motor vehicle starter in which a low force allows the triggering of a powerful mechanism.
- Patent GB-A-511,683 discloses an on-off-reverse-rotation control for an electric motor intended to work in an environment presenting danger of explosion, in which the transmission of movement between the manual control member and the electric on-off-inversion rotation control of the motor is carried out by pneumatic or hydraulic control in which means are provided to ensure safety from the danger of explosion. In particular, it is intended that the direction of rotation cannot be reversed as long as a danger situation exists.
- US-A-4 259 878 describes a structure in which a mechanical element with longitudinal movement is also held in two stable positions by an elastic latch, which makes it possible to obtain two different effects corresponding to each of the two stable positions.
- the present invention solves the problem set out in the foregoing by creating a new control which, in addition, prevents the engine from being restarted even by accidental operation.
- the engine can be stopped at any time during the operation of the timer. Furthermore, these results are obtained by using extremely simple and robust means.
- the mechanical remote control for explosion-proof motors of the type in which a motor comprises an on-off control crank with elastic return connected by a member for transmitting a movement to a movable member which can be printed manually a reciprocating movement by the actuation of an operating button is characterized in that said movable member has the form of a slide having a groove and a thinned part having a shoulder, said slide being disposed between a first and second pivoting plates mounted on two axes parallel to each other and perpendicular to the sliding direction of the slide, said pivoting plates, normally subjected to thrusts tending to pivot them towards each other, being able to be actuated by a olive mounted in such a way that it can move in a longitudinal direction parallel to the direction of movement of the ram and disp also daring between said two pivoting plates, the first pivoting plate being able moreover to be subjected, by means of a range, to the action of a cam driven by a timer; the position of said olive relative
- the operating time of the motor 2 must be controlled by a timer 3, the operation of which must only be taken into account after the crank 1 has been made to pivot in the opposite direction to the arrow f 1 by a corresponding sufficient angle. on condition of engine “running” 2. Furthermore, the explosion-proof engine 1 must be able to be stopped instantly by means of a push button 4 of the so-called punch type.
- the control advantageously comprises a box 5 in which a support 6 made of sheet metal is fixed. This support forms a back 7 which is parallel to the front face 5a of the housing.
- Figs. 1 and 2 show that the back 7 has openings 8 through which the legs 9 with arched ends 9a which are part of two plates 10 and 11 have passed.
- the legs 9 are held behind the back 7 by two springs 12, 13 constituted by piano strings, the ends of which are engaged behind the arched ends 9a of said legs, said springs also bearing at their middle part against projections 14, 15 formed from punctures in the back 7.
- the springs 12, 13 are prestressed so as to exert a thrust on the legs 9 and, consequently, so as to rotate the plates 10, 11 in the direction for which these plates tend to be brought closer to one another.
- the plate 10 (fig. 3 for example) has a dropped edge 16 extending over part of its length as shown in dotted lines in fig. 1 and which is directed towards the plate 11.
- the plate 10 has a bearing surface 17 which is intended to cooperate with a cam 18 driven by the timer 3.
- the plate 11 (fig. 4 for example) has on its side two fallen edges 19, respectively 20, offset relative to each other.
- the dropped edge 19 is intended to cooperate with a slide 21 which can be operated by a button 22.
- the dropped edge 20 is intended to cooperate with an olive 13 having a flat 24, said olive being controlled by the pusher 4.
- the engine can be restarted by resetting the timer and pulling button 22 again.
- the edge fallen 16 releases the groove 30 of the slide 21 to allow the crank 1 to return to the position corresponding to the stopping of the motor and the slide 21 can no longer be actuated from the button 22 since the fallen edge 19 of the plate 11 is then engaged with the shoulder 29. Resumption of operation is only possible after a new arming of the pusher 4.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanisms For Operating Contacts (AREA)
- Toys (AREA)
- Invalid Beds And Related Equipment (AREA)
- Control Of Electric Motors In General (AREA)
- Mechanical Control Devices (AREA)
- Transmission Devices (AREA)
- Selective Calling Equipment (AREA)
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83400650T ATE13364T1 (de) | 1982-04-01 | 1983-03-29 | Mechanische fernbedienung fuer elektrische motoren mit explosionsschutz. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8205637 | 1982-04-01 | ||
FR8205637A FR2524670A1 (fr) | 1982-04-01 | 1982-04-01 | Commande mecanique a distance pour moteurs electriques antideflagrants |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0091360A1 EP0091360A1 (de) | 1983-10-12 |
EP0091360B1 true EP0091360B1 (de) | 1985-05-15 |
Family
ID=9272641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83400650A Expired EP0091360B1 (de) | 1982-04-01 | 1983-03-29 | Mechanische Fernbedienung für elektrische Motoren mit Explosionsschutz |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0091360B1 (de) |
AT (1) | ATE13364T1 (de) |
DE (2) | DE91360T1 (de) |
ES (1) | ES8401803A1 (de) |
FR (1) | FR2524670A1 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL71118B (de) * | 1933-11-09 | |||
GB511683A (en) * | 1938-01-19 | 1939-08-23 | Albert Edward Leek | Improvements in control devices for electric motors |
US4122729A (en) * | 1977-01-04 | 1978-10-31 | Stanley Mitchel | Operation initiator |
US4246989A (en) * | 1978-12-07 | 1981-01-27 | Caterpillar Tractor Co. | Parking brake and transmission interlock system |
US4259878A (en) * | 1979-10-29 | 1981-04-07 | Deere & Company | Hand control mechanism |
-
1982
- 1982-04-01 FR FR8205637A patent/FR2524670A1/fr active Granted
-
1983
- 1983-03-29 ES ES521114A patent/ES8401803A1/es not_active Expired
- 1983-03-29 DE DE198383400650T patent/DE91360T1/de active Pending
- 1983-03-29 AT AT83400650T patent/ATE13364T1/de not_active IP Right Cessation
- 1983-03-29 DE DE8383400650T patent/DE3360186D1/de not_active Expired
- 1983-03-29 EP EP83400650A patent/EP0091360B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES521114A0 (es) | 1984-01-01 |
ES8401803A1 (es) | 1984-01-01 |
DE91360T1 (de) | 1984-05-10 |
FR2524670B1 (de) | 1984-06-22 |
DE3360186D1 (en) | 1985-06-20 |
EP0091360A1 (de) | 1983-10-12 |
ATE13364T1 (de) | 1985-06-15 |
FR2524670A1 (fr) | 1983-10-07 |
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AK | Designated contracting states |
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ITCL | It: translation for ep claims filed |
Representative=s name: STUDIO ING. ALFREDO RAIMONDI |
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TCNL | Nl: translation of patent claims filed | ||
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